+++ /dev/null
-diff -Nurp linux-2.4.30/Documentation/Configure.help linux-2.4.30-layer7/Documentation/Configure.help
---- linux-2.4.30/Documentation/Configure.help 2005-04-03 20:42:19.000000000 -0500
-+++ linux-2.4.30-layer7/Documentation/Configure.help 2005-05-03 18:37:03.000000000 -0500
-@@ -29056,6 +29056,23 @@ CONFIG_SOUND_WM97XX
-
- If unsure, say N.
-
-+CONFIG_IP_NF_MATCH_LAYER7
-+ Say Y if you want to be able to classify connections (and their
-+ packets) based on regular expression matching of their application
-+ layer data. This is one way to classify applications such as
-+ peer-to-peer filesharing systems that do not always use the same
-+ port.
-+
-+ To compile it as a module, choose M here. If unsure, say N.
-+
-+CONFIG_IP_NF_MATCH_LAYER7_DEBUG
-+ Say Y to get lots of debugging output.
-+
-+CONFIG_IP_NF_MATCH_LAYER7_MAXDATALEN
-+ Size of the buffer that the application layer data is stored in.
-+ Unless you know what you're doing, leave it at the default of 2048
-+ Bytes.
-+
- #
- # A couple of things I keep forgetting:
- # capitalize: AppleTalk, Ethernet, DOS, DMA, FAT, FTP, Internet,
-diff -Nurp linux-2.4.30/include/linux/netfilter_ipv4/ip_conntrack.h linux-2.4.30-layer7/include/linux/netfilter_ipv4/ip_conntrack.h
---- linux-2.4.30/include/linux/netfilter_ipv4/ip_conntrack.h 2005-04-03 20:42:20.000000000 -0500
-+++ linux-2.4.30-layer7/include/linux/netfilter_ipv4/ip_conntrack.h 2005-05-03 18:37:03.000000000 -0500
-@@ -207,6 +207,17 @@ struct ip_conntrack
- } nat;
- #endif /* CONFIG_IP_NF_NAT_NEEDED */
-
-+#if defined(CONFIG_IP_NF_MATCH_LAYER7) || defined(CONFIG_IP_NF_MATCH_LAYER7_MODULE)
-+ struct {
-+ unsigned int numpackets; /* surely this is kept track of somewhere else, right? I can't find it... */
-+ char * app_proto; /* "http", "ftp", etc. NULL if unclassifed */
-+
-+ /* the application layer data so far. NULL if ->numpackets > numpackets */
-+ char * app_data;
-+
-+ unsigned int app_data_len;
-+ } layer7;
-+#endif
- };
-
- /* get master conntrack via master expectation */
-diff -Nurp linux-2.4.30/include/linux/netfilter_ipv4/ipt_layer7.h linux-2.4.30-layer7/include/linux/netfilter_ipv4/ipt_layer7.h
---- linux-2.4.30/include/linux/netfilter_ipv4/ipt_layer7.h 1969-12-31 18:00:00.000000000 -0600
-+++ linux-2.4.30-layer7/include/linux/netfilter_ipv4/ipt_layer7.h 2005-05-03 18:37:03.000000000 -0500
-@@ -0,0 +1,26 @@
-+/*
-+ By Matthew Strait <quadong@users.sf.net>, Dec 2003.
-+ http://l7-filter.sf.net
-+
-+ This program is free software; you can redistribute it and/or
-+ modify it under the terms of the GNU General Public License
-+ as published by the Free Software Foundation; either version
-+ 2 of the License, or (at your option) any later version.
-+ http://www.gnu.org/licenses/gpl.txt
-+*/
-+
-+#ifndef _IPT_LAYER7_H
-+#define _IPT_LAYER7_H
-+
-+#define MAX_PATTERN_LEN 8192
-+#define MAX_PROTOCOL_LEN 256
-+
-+typedef char *(*proc_ipt_search) (char *, char, char *);
-+
-+struct ipt_layer7_info {
-+ char protocol[MAX_PROTOCOL_LEN];
-+ char invert:1;
-+ char pattern[MAX_PATTERN_LEN];
-+};
-+
-+#endif /* _IPT_LAYER7_H */
-diff -Nurp linux-2.4.30/net/ipv4/netfilter/Config.in linux-2.4.30-layer7/net/ipv4/netfilter/Config.in
---- linux-2.4.30/net/ipv4/netfilter/Config.in 2005-01-19 08:10:13.000000000 -0600
-+++ linux-2.4.30-layer7/net/ipv4/netfilter/Config.in 2005-05-03 18:37:03.000000000 -0500
-@@ -43,6 +43,10 @@ if [ "$CONFIG_IP_NF_IPTABLES" != "n" ];
- if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
- dep_tristate ' Unclean match support (EXPERIMENTAL)' CONFIG_IP_NF_MATCH_UNCLEAN $CONFIG_IP_NF_IPTABLES
- dep_tristate ' Owner match support (EXPERIMENTAL)' CONFIG_IP_NF_MATCH_OWNER $CONFIG_IP_NF_IPTABLES
-+ dep_tristate ' Layer 7 match support (EXPERIMENTAL)' CONFIG_IP_NF_MATCH_LAYER7 $CONFIG_IP_NF_CONNTRACK
-+ dep_mbool ' Layer 7 debugging output (EXPERIMENTAL)' CONFIG_IP_NF_MATCH_LAYER7_DEBUG $CONFIG_IP_NF_MATCH_LAYER7
-+ int ' Buffer size for application layer data (256-65536)' CONFIG_IP_NF_MATCH_LAYER7_MAXDATALEN 2048
-+
- fi
- # The targets
- dep_tristate ' Packet filtering' CONFIG_IP_NF_FILTER $CONFIG_IP_NF_IPTABLES
-diff -Nurp linux-2.4.30/net/ipv4/netfilter/Makefile linux-2.4.30-layer7/net/ipv4/netfilter/Makefile
---- linux-2.4.30/net/ipv4/netfilter/Makefile 2003-08-25 06:44:44.000000000 -0500
-+++ linux-2.4.30-layer7/net/ipv4/netfilter/Makefile 2005-05-03 18:44:12.000000000 -0500
-@@ -86,6 +86,7 @@ obj-$(CONFIG_IP_NF_MATCH_STATE) += ipt_s
- obj-$(CONFIG_IP_NF_MATCH_CONNTRACK) += ipt_conntrack.o
- obj-$(CONFIG_IP_NF_MATCH_UNCLEAN) += ipt_unclean.o
- obj-$(CONFIG_IP_NF_MATCH_TCPMSS) += ipt_tcpmss.o
-+obj-$(CONFIG_IP_NF_MATCH_LAYER7) += ipt_layer7.o
-
- # targets
- obj-$(CONFIG_IP_NF_TARGET_REJECT) += ipt_REJECT.o
-diff -Nurp linux-2.4.30/net/ipv4/netfilter/ip_conntrack_core.c linux-2.4.30-layer7/net/ipv4/netfilter/ip_conntrack_core.c
---- linux-2.4.30/net/ipv4/netfilter/ip_conntrack_core.c 2005-04-03 20:42:20.000000000 -0500
-+++ linux-2.4.30-layer7/net/ipv4/netfilter/ip_conntrack_core.c 2005-05-03 18:37:03.000000000 -0500
-@@ -346,6 +346,14 @@ destroy_conntrack(struct nf_conntrack *n
- }
- kfree(ct->master);
- }
-+
-+ #if defined(CONFIG_IP_NF_MATCH_LAYER7) || defined(CONFIG_IP_NF_MATCH_LAYER7_MODULE)
-+ if(ct->layer7.app_proto)
-+ kfree(ct->layer7.app_proto);
-+ if(ct->layer7.app_data)
-+ kfree(ct->layer7.app_data);
-+ #endif
-+
- WRITE_UNLOCK(&ip_conntrack_lock);
-
- if (master)
-diff -Nurp linux-2.4.30/net/ipv4/netfilter/ip_conntrack_standalone.c linux-2.4.30-layer7/net/ipv4/netfilter/ip_conntrack_standalone.c
---- linux-2.4.30/net/ipv4/netfilter/ip_conntrack_standalone.c 2005-04-03 20:42:20.000000000 -0500
-+++ linux-2.4.30-layer7/net/ipv4/netfilter/ip_conntrack_standalone.c 2005-05-03 18:37:03.000000000 -0500
-@@ -107,6 +107,13 @@ print_conntrack(char *buffer, struct ip_
- len += sprintf(buffer + len, "[ASSURED] ");
- len += sprintf(buffer + len, "use=%u ",
- atomic_read(&conntrack->ct_general.use));
-+
-+ #if defined(CONFIG_IP_NF_MATCH_LAYER7) || defined(CONFIG_IP_NF_MATCH_LAYER7_MODULE)
-+ if(conntrack->layer7.app_proto)
-+ len += sprintf(buffer + len, "l7proto=%s ",
-+ conntrack->layer7.app_proto);
-+ #endif
-+
- len += sprintf(buffer + len, "\n");
-
- return len;
-diff -Nurp linux-2.4.30/net/ipv4/netfilter/ipt_layer7.c linux-2.4.30-layer7/net/ipv4/netfilter/ipt_layer7.c
---- linux-2.4.30/net/ipv4/netfilter/ipt_layer7.c 1969-12-31 18:00:00.000000000 -0600
-+++ linux-2.4.30-layer7/net/ipv4/netfilter/ipt_layer7.c 2005-05-03 18:37:03.000000000 -0500
-@@ -0,0 +1,557 @@
-+/*
-+ Kernel module to match application layer (OSI layer 7)
-+ data in connections.
-+
-+ http://l7-filter.sf.net
-+
-+ By Matthew Strait and Ethan Sommer, 2003-2005.
-+
-+ This program is free software; you can redistribute it and/or
-+ modify it under the terms of the GNU General Public License
-+ as published by the Free Software Foundation; either version
-+ 2 of the License, or (at your option) any later version.
-+ http://www.gnu.org/licenses/gpl.txt
-+
-+ Based on ipt_string.c (C) 2000 Emmanuel Roger <winfield@freegates.be>
-+ and cls_layer7.c (C) 2003 Matthew Strait, Ethan Sommer, Justin Levandoski
-+*/
-+
-+#include <linux/module.h>
-+#include <linux/skbuff.h>
-+#include <linux/netfilter_ipv4/ip_conntrack.h>
-+#include <linux/proc_fs.h>
-+#include <linux/ctype.h>
-+#include <net/ip.h>
-+#include <net/tcp.h>
-+#include <linux/netfilter_ipv4/lockhelp.h>
-+
-+#include "regexp/regexp.c"
-+
-+#include <linux/netfilter_ipv4/ipt_layer7.h>
-+#include <linux/netfilter_ipv4/ip_tables.h>
-+
-+MODULE_AUTHOR("Matthew Strait <quadong@users.sf.net>, Ethan Sommer <sommere@users.sf.net>");
-+MODULE_LICENSE("GPL");
-+MODULE_DESCRIPTION("iptables application layer match module");
-+
-+#if defined(CONFIG_IP_NF_MATCH_LAYER7_DEBUG)
-+ #define DPRINTK(format,args...) printk(format,##args)
-+#else
-+ #define DPRINTK(format,args...)
-+#endif
-+
-+#define TOTAL_PACKETS master_conntrack->layer7.numpackets
-+
-+/* Number of packets whose data we look at.
-+This can be modified through /proc/net/layer7_numpackets */
-+static int num_packets = 8;
-+
-+static struct pattern_cache {
-+ char * regex_string;
-+ regexp * pattern;
-+ struct pattern_cache * next;
-+} * first_pattern_cache = NULL;
-+
-+/* I'm new to locking. Here are my assumptions:
-+
-+- No one will write to /proc/net/layer7_numpackets over and over very fast;
-+ if they did, nothing awful would happen.
-+
-+- This code will never be processing the same packet twice at the same time,
-+ because iptables rules are traversed in order.
-+
-+- It doesn't matter if two packets from different connections are in here at
-+ the same time, because they don't share any data.
-+
-+- It _does_ matter if two packets from the same connection are here at the same
-+ time. In this case, we have to protect the conntracks and the list of
-+ compiled patterns.
-+*/
-+DECLARE_RWLOCK(ct_lock);
-+DECLARE_LOCK(list_lock);
-+
-+#if CONFIG_IP_NF_MATCH_LAYER7_DEBUG
-+/* Converts an unfriendly string into a friendly one by
-+replacing unprintables with periods and all whitespace with " ". */
-+static char * friendly_print(unsigned char * s)
-+{
-+ char * f = kmalloc(strlen(s) + 1, GFP_ATOMIC);
-+ int i;
-+
-+ if(!f) {
-+ if (net_ratelimit())
-+ printk(KERN_ERR "layer7: out of memory in friendly_print, bailing.\n");
-+ return NULL;
-+ }
-+
-+ for(i = 0; i < strlen(s); i++){
-+ if(isprint(s[i]) && s[i] < 128) f[i] = s[i];
-+ else if(isspace(s[i])) f[i] = ' ';
-+ else f[i] = '.';
-+ }
-+ f[i] = '\0';
-+ return f;
-+}
-+
-+static char dec2hex(int i)
-+{
-+ switch (i) {
-+ case 0 ... 9:
-+ return (char)(i + '0');
-+ break;
-+ case 10 ... 15:
-+ return (char)(i - 10 + 'a');
-+ break;
-+ default:
-+ if (net_ratelimit())
-+ printk("Problem in dec2hex\n");
-+ return '\0';
-+ }
-+}
-+
-+static char * hex_print(unsigned char * s)
-+{
-+ char * g = kmalloc(strlen(s)*3 + 1, GFP_ATOMIC);
-+ int i;
-+
-+ if(!g) {
-+ if (net_ratelimit())
-+ printk(KERN_ERR "layer7: out of memory in hex_print, bailing.\n");
-+ return NULL;
-+ }
-+
-+ for(i = 0; i < strlen(s); i++) {
-+ g[i*3 ] = dec2hex(s[i]/16);
-+ g[i*3 + 1] = dec2hex(s[i]%16);
-+ g[i*3 + 2] = ' ';
-+ }
-+ g[i*3] = '\0';
-+
-+ return g;
-+}
-+#endif // DEBUG
-+
-+/* Use instead of regcomp. As we expect to be seeing the same regexps over and
-+over again, it make sense to cache the results. */
-+static regexp * compile_and_cache(char * regex_string, char * protocol)
-+{
-+ struct pattern_cache * node = first_pattern_cache;
-+ struct pattern_cache * last_pattern_cache = first_pattern_cache;
-+ struct pattern_cache * tmp;
-+ unsigned int len;
-+
-+ while (node != NULL) {
-+ if (!strcmp(node->regex_string, regex_string))
-+ return node->pattern;
-+
-+ last_pattern_cache = node;/* points at the last non-NULL node */
-+ node = node->next;
-+ }
-+
-+ /* If we reach the end of the list, then we have not yet cached
-+ the pattern for this regex. Let's do that now.
-+ Be paranoid about running out of memory to avoid list corruption. */
-+ tmp = kmalloc(sizeof(struct pattern_cache), GFP_ATOMIC);
-+
-+ if(!tmp) {
-+ if (net_ratelimit())
-+ printk(KERN_ERR "layer7: out of memory in compile_and_cache, bailing.\n");
-+ return NULL;
-+ }
-+
-+ tmp->regex_string = kmalloc(strlen(regex_string) + 1, GFP_ATOMIC);
-+ tmp->pattern = kmalloc(sizeof(struct regexp), GFP_ATOMIC);
-+ tmp->next = NULL;
-+
-+ if(!tmp->regex_string || !tmp->pattern) {
-+ if (net_ratelimit())
-+ printk(KERN_ERR "layer7: out of memory in compile_and_cache, bailing.\n");
-+ kfree(tmp->regex_string);
-+ kfree(tmp->pattern);
-+ kfree(tmp);
-+ return NULL;
-+ }
-+
-+ /* Ok. The new node is all ready now. */
-+ node = tmp;
-+
-+ if(first_pattern_cache == NULL) /* list is empty */
-+ first_pattern_cache = node; /* make node the beginning */
-+ else
-+ last_pattern_cache->next = node; /* attach node to the end */
-+
-+ /* copy the string and compile the regex */
-+ len = strlen(regex_string);
-+ DPRINTK("About to compile this: \"%s\"\n", regex_string);
-+ node->pattern = regcomp(regex_string, &len);
-+ if ( !node->pattern ) {
-+ if (net_ratelimit())
-+ printk(KERN_ERR "layer7: Error compiling regexp \"%s\" (%s)\n", regex_string, protocol);
-+ /* pattern is now cached as NULL, so we won't try again. */
-+ }
-+
-+ strcpy(node->regex_string, regex_string);
-+ return node->pattern;
-+}
-+
-+static int can_handle(const struct sk_buff *skb)
-+{
-+ if(!skb->nh.iph) /* not IP */
-+ return 0;
-+ if(skb->nh.iph->protocol != IPPROTO_TCP &&
-+ skb->nh.iph->protocol != IPPROTO_UDP &&
-+ skb->nh.iph->protocol != IPPROTO_ICMP)
-+ return 0;
-+ return 1;
-+}
-+
-+/* Returns offset the into the skb->data that the application data starts */
-+static int app_data_offset(const struct sk_buff *skb)
-+{
-+ /* In case we are ported somewhere (ebtables?) where skb->nh.iph
-+ isn't set, this can be gotten from 4*(skb->data[0] & 0x0f) as well. */
-+ int ip_hl = 4*skb->nh.iph->ihl;
-+
-+ if( skb->nh.iph->protocol == IPPROTO_TCP ) {
-+ /* 12 == offset into TCP header for the header length field.
-+ Can't get this with skb->h.th->doff because the tcphdr
-+ struct doesn't get set when routing (this is confirmed to be
-+ true in Netfilter as well as QoS.) */
-+ int tcp_hl = 4*(skb->data[ip_hl + 12] >> 4);
-+
-+ return ip_hl + tcp_hl;
-+ } else if( skb->nh.iph->protocol == IPPROTO_UDP ) {
-+ return ip_hl + 8; /* UDP header is always 8 bytes */
-+ } else if( skb->nh.iph->protocol == IPPROTO_ICMP ) {
-+ return ip_hl + 8; /* ICMP header is 8 bytes */
-+ } else {
-+ if (net_ratelimit())
-+ printk(KERN_ERR "layer7: tried to handle unknown protocol!\n");
-+ return ip_hl + 8; /* something reasonable */
-+ }
-+}
-+
-+/* handles whether there's a match when we aren't appending data anymore */
-+static int match_no_append(struct ip_conntrack * conntrack, struct ip_conntrack * master_conntrack,
-+ enum ip_conntrack_info ctinfo, enum ip_conntrack_info master_ctinfo,
-+ struct ipt_layer7_info * info)
-+{
-+ /* If we're in here, throw the app data away */
-+ WRITE_LOCK(&ct_lock);
-+ if(master_conntrack->layer7.app_data != NULL) {
-+
-+ #ifdef CONFIG_IP_NF_MATCH_LAYER7_DEBUG
-+ if(!master_conntrack->layer7.app_proto) {
-+ char * f = friendly_print(master_conntrack->layer7.app_data);
-+ char * g = hex_print(master_conntrack->layer7.app_data);
-+ DPRINTK("\nl7-filter gave up after %d bytes (%d packets):\n%s\n",
-+ strlen(f),
-+ TOTAL_PACKETS, f);
-+ kfree(f);
-+ DPRINTK("In hex: %s\n", g);
-+ kfree(g);
-+ }
-+ #endif
-+
-+ kfree(master_conntrack->layer7.app_data);
-+ master_conntrack->layer7.app_data = NULL; /* don't free again */
-+ }
-+ WRITE_UNLOCK(&ct_lock);
-+
-+ if(master_conntrack->layer7.app_proto){
-+ /* Here child connections set their .app_proto (for /proc/net/ip_conntrack) */
-+ WRITE_LOCK(&ct_lock);
-+ if(!conntrack->layer7.app_proto) {
-+ conntrack->layer7.app_proto = kmalloc(strlen(master_conntrack->layer7.app_proto)+1, GFP_ATOMIC);
-+ if(!conntrack->layer7.app_proto){
-+ if (net_ratelimit())
-+ printk(KERN_ERR "layer7: out of memory in match_no_append, bailing.\n");
-+ WRITE_UNLOCK(&ct_lock);
-+ return 1;
-+ }
-+ strcpy(conntrack->layer7.app_proto, master_conntrack->layer7.app_proto);
-+ }
-+ WRITE_UNLOCK(&ct_lock);
-+
-+ return (!strcmp(master_conntrack->layer7.app_proto, info->protocol));
-+ }
-+ else {
-+ /* If not classified, set to "unknown" to distinguish from
-+ connections that are still being tested. */
-+ WRITE_LOCK(&ct_lock);
-+ master_conntrack->layer7.app_proto = kmalloc(strlen("unknown")+1, GFP_ATOMIC);
-+ if(!master_conntrack->layer7.app_proto){
-+ if (net_ratelimit())
-+ printk(KERN_ERR "layer7: out of memory in match_no_append, bailing.\n");
-+ WRITE_UNLOCK(&ct_lock);
-+ return 1;
-+ }
-+ strcpy(master_conntrack->layer7.app_proto, "unknown");
-+ WRITE_UNLOCK(&ct_lock);
-+ return 0;
-+ }
-+}
-+
-+/* add the new app data to the conntrack. Return number of bytes added. */
-+static int add_data(struct ip_conntrack * master_conntrack,
-+ char * app_data, int appdatalen)
-+{
-+ int length = 0, i;
-+ int oldlength = master_conntrack->layer7.app_data_len;
-+
-+ /* Strip nulls. Make everything lower case (our regex lib doesn't
-+ do case insensitivity). Add it to the end of the current data. */
-+ for(i = 0; i < CONFIG_IP_NF_MATCH_LAYER7_MAXDATALEN-oldlength-1 &&
-+ i < appdatalen; i++) {
-+ if(app_data[i] != '\0') {
-+ master_conntrack->layer7.app_data[length+oldlength] =
-+ /* the kernel version of tolower mungs 'upper ascii' */
-+ isascii(app_data[i])? tolower(app_data[i]) : app_data[i];
-+ length++;
-+ }
-+ }
-+
-+ master_conntrack->layer7.app_data[length+oldlength] = '\0';
-+ master_conntrack->layer7.app_data_len = length + oldlength;
-+
-+ return length;
-+}
-+
-+/* Returns true on match and false otherwise. */
-+static int match(/* const */struct sk_buff *skb, const struct net_device *in,
-+ const struct net_device *out, const void *matchinfo,
-+ int offset, int *hotdrop)
-+{
-+ struct ipt_layer7_info * info = (struct ipt_layer7_info *)matchinfo;
-+ enum ip_conntrack_info master_ctinfo, ctinfo;
-+ struct ip_conntrack *master_conntrack, *conntrack;
-+ unsigned char * app_data;
-+ unsigned int pattern_result, appdatalen;
-+ regexp * comppattern;
-+
-+ if(!can_handle(skb)){
-+ DPRINTK("layer7: This is some protocol I can't handle.\n");
-+ return info->invert;
-+ }
-+
-+ /* Treat the parent and all its children together as one connection,
-+ except for the purpose of setting conntrack->layer7.app_proto in the
-+ actual connection. This makes /proc/net/ip_conntrack somewhat more
-+ satisfying. */
-+ if(!(conntrack = ip_conntrack_get((struct sk_buff *)skb, &ctinfo)) ||
-+ !(master_conntrack = ip_conntrack_get((struct sk_buff *)skb, &master_ctinfo))) {
-+ DPRINTK("layer7: packet is not from a known connection, giving up.\n");
-+ return info->invert;
-+ }
-+
-+ /* Try to get a master conntrack (and its master etc) for FTP, etc. */
-+ while (master_ct(master_conntrack) != NULL)
-+ master_conntrack = master_ct(master_conntrack);
-+
-+ if(!skb->cb[0]){
-+ WRITE_LOCK(&ct_lock);
-+ master_conntrack->layer7.numpackets++;/*starts at 0 via memset*/
-+ WRITE_UNLOCK(&ct_lock);
-+ }
-+
-+ /* if we've classified it or seen too many packets */
-+ if(TOTAL_PACKETS > num_packets ||
-+ master_conntrack->layer7.app_proto) {
-+
-+ pattern_result = match_no_append(conntrack, master_conntrack, ctinfo, master_ctinfo, info);
-+
-+ /* skb->cb[0] == seen. Avoid doing things twice if there are two l7
-+ rules. I'm not sure that using cb for this purpose is correct, although
-+ it says "put your private variables there". But it doesn't look like it
-+ is being used for anything else in the skbs that make it here. How can
-+ I write to cb without making the compiler angry? */
-+ skb->cb[0] = 1; /* marking it seen here is probably irrelevant, but consistant */
-+
-+ return (pattern_result ^ info->invert);
-+ }
-+
-+ if(skb_is_nonlinear(skb)){
-+ if(skb_linearize(skb, GFP_ATOMIC) != 0){
-+ if (net_ratelimit())
-+ printk(KERN_ERR "layer7: failed to linearize packet, bailing.\n");
-+ return info->invert;
-+ }
-+ }
-+
-+ /* now that the skb is linearized, it's safe to set these. */
-+ app_data = skb->data + app_data_offset(skb);
-+ appdatalen = skb->tail - app_data;
-+
-+ LOCK_BH(&list_lock);
-+ /* the return value gets checked later, when we're ready to use it */
-+ comppattern = compile_and_cache(info->pattern, info->protocol);
-+ UNLOCK_BH(&list_lock);
-+
-+ /* On the first packet of a connection, allocate space for app data */
-+ WRITE_LOCK(&ct_lock);
-+ if(TOTAL_PACKETS == 1 && !skb->cb[0] && !master_conntrack->layer7.app_data) {
-+ master_conntrack->layer7.app_data = kmalloc(CONFIG_IP_NF_MATCH_LAYER7_MAXDATALEN, GFP_ATOMIC);
-+ if(!master_conntrack->layer7.app_data){
-+ if (net_ratelimit())
-+ printk(KERN_ERR "layer7: out of memory in match, bailing.\n");
-+ WRITE_UNLOCK(&ct_lock);
-+ return info->invert;
-+ }
-+
-+ master_conntrack->layer7.app_data[0] = '\0';
-+ }
-+ WRITE_UNLOCK(&ct_lock);
-+
-+ /* Can be here, but unallocated, if numpackets is increased near
-+ the beginning of a connection */
-+ if(master_conntrack->layer7.app_data == NULL)
-+ return (info->invert); /* unmatched */
-+
-+ if(!skb->cb[0]){
-+ int newbytes;
-+ WRITE_LOCK(&ct_lock);
-+ newbytes = add_data(master_conntrack, app_data, appdatalen);
-+ WRITE_UNLOCK(&ct_lock);
-+
-+ if(newbytes == 0) { /* didn't add any data */
-+ skb->cb[0] = 1;
-+ /* Didn't match before, not going to match now */
-+ return info->invert;
-+ }
-+ }
-+
-+ /* If looking for "unknown", then never match. "Unknown" means that
-+ we've given up; we're still trying with these packets. */
-+ if(!strcmp(info->protocol, "unknown")) {
-+ pattern_result = 0;
-+ /* If the regexp failed to compile, don't bother running it */
-+ } else if(comppattern && regexec(comppattern, master_conntrack->layer7.app_data)) {
-+ DPRINTK("layer7: regexec positive: %s!\n", info->protocol);
-+ pattern_result = 1;
-+ } else pattern_result = 0;
-+
-+ if(pattern_result) {
-+ WRITE_LOCK(&ct_lock);
-+ master_conntrack->layer7.app_proto = kmalloc(strlen(info->protocol)+1, GFP_ATOMIC);
-+ if(!master_conntrack->layer7.app_proto){
-+ if (net_ratelimit())
-+ printk(KERN_ERR "layer7: out of memory in match, bailing.\n");
-+ WRITE_UNLOCK(&ct_lock);
-+ return (pattern_result ^ info->invert);
-+ }
-+ strcpy(master_conntrack->layer7.app_proto, info->protocol);
-+ WRITE_UNLOCK(&ct_lock);
-+ }
-+
-+ /* mark the packet seen */
-+ skb->cb[0] = 1;
-+
-+ return (pattern_result ^ info->invert);
-+}
-+
-+static int checkentry(const char *tablename, const struct ipt_ip *ip,
-+ void *matchinfo, unsigned int matchsize, unsigned int hook_mask)
-+{
-+ if (matchsize != IPT_ALIGN(sizeof(struct ipt_layer7_info)))
-+ return 0;
-+ return 1;
-+}
-+
-+static struct ipt_match layer7_match = {
-+ .name = "layer7",
-+ .match = &match,
-+ .checkentry = &checkentry,
-+ .me = THIS_MODULE
-+};
-+
-+/* taken from drivers/video/modedb.c */
-+static int my_atoi(const char *s)
-+{
-+ int val = 0;
-+
-+ for (;; s++) {
-+ switch (*s) {
-+ case '0'...'9':
-+ val = 10*val+(*s-'0');
-+ break;
-+ default:
-+ return val;
-+ }
-+ }
-+}
-+
-+/* write out num_packets to userland. */
-+static int layer7_read_proc(char* page, char ** start, off_t off, int count,
-+ int* eof, void * data)
-+{
-+ if(num_packets > 99 && net_ratelimit())
-+ printk(KERN_ERR "layer7: NOT REACHED. num_packets too big\n");
-+
-+ page[0] = num_packets/10 + '0';
-+ page[1] = num_packets%10 + '0';
-+ page[2] = '\n';
-+ page[3] = '\0';
-+
-+ *eof=1;
-+
-+ return 3;
-+}
-+
-+/* Read in num_packets from userland */
-+static int layer7_write_proc(struct file* file, const char* buffer,
-+ unsigned long count, void *data)
-+{
-+ char * foo = kmalloc(count, GFP_ATOMIC);
-+
-+ if(!foo){
-+ if (net_ratelimit())
-+ printk(KERN_ERR "layer7: out of memory, bailing. num_packets unchanged.\n");
-+ return count;
-+ }
-+
-+ copy_from_user(foo, buffer, count);
-+
-+ num_packets = my_atoi(foo);
-+ kfree (foo);
-+
-+ /* This has an arbitrary limit to make the math easier. I'm lazy.
-+ But anyway, 99 is a LOT! If you want more, you're doing it wrong! */
-+ if(num_packets > 99) {
-+ printk(KERN_WARNING "layer7: num_packets can't be > 99.\n");
-+ num_packets = 99;
-+ } else if(num_packets < 1) {
-+ printk(KERN_WARNING "layer7: num_packets can't be < 1.\n");
-+ num_packets = 1;
-+ }
-+
-+ return count;
-+}
-+
-+/* register the proc file */
-+static void layer7_init_proc(void)
-+{
-+ struct proc_dir_entry* entry;
-+ entry = create_proc_entry("layer7_numpackets", 0644, proc_net);
-+ entry->read_proc = layer7_read_proc;
-+ entry->write_proc = layer7_write_proc;
-+}
-+
-+static void layer7_cleanup_proc(void)
-+{
-+ remove_proc_entry("layer7_numpackets", proc_net);
-+}
-+
-+static int __init init(void)
-+{
-+ layer7_init_proc();
-+ return ipt_register_match(&layer7_match);
-+}
-+
-+static void __exit fini(void)
-+{
-+ layer7_cleanup_proc();
-+ ipt_unregister_match(&layer7_match);
-+}
-+
-+module_init(init);
-+module_exit(fini);
-diff -Nurp linux-2.4.30/net/ipv4/netfilter/regexp/regexp.c linux-2.4.30-layer7/net/ipv4/netfilter/regexp/regexp.c
---- linux-2.4.30/net/ipv4/netfilter/regexp/regexp.c 1969-12-31 18:00:00.000000000 -0600
-+++ linux-2.4.30-layer7/net/ipv4/netfilter/regexp/regexp.c 2005-05-03 18:37:03.000000000 -0500
-@@ -0,0 +1,1195 @@
-+/*
-+ * regcomp and regexec -- regsub and regerror are elsewhere
-+ * @(#)regexp.c 1.3 of 18 April 87
-+ *
-+ * Copyright (c) 1986 by University of Toronto.
-+ * Written by Henry Spencer. Not derived from licensed software.
-+ *
-+ * Permission is granted to anyone to use this software for any
-+ * purpose on any computer system, and to redistribute it freely,
-+ * subject to the following restrictions:
-+ *
-+ * 1. The author is not responsible for the consequences of use of
-+ * this software, no matter how awful, even if they arise
-+ * from defects in it.
-+ *
-+ * 2. The origin of this software must not be misrepresented, either
-+ * by explicit claim or by omission.
-+ *
-+ * 3. Altered versions must be plainly marked as such, and must not
-+ * be misrepresented as being the original software.
-+ *
-+ * Beware that some of this code is subtly aware of the way operator
-+ * precedence is structured in regular expressions. Serious changes in
-+ * regular-expression syntax might require a total rethink.
-+ *
-+ * This code was modified by Ethan Sommer to work within the kernel
-+ * (it now uses kmalloc etc..)
-+ *
-+ * Modified slightly by Matthew Strait to use more modern C.
-+ */
-+
-+#include "regexp.h"
-+#include "regmagic.h"
-+
-+/* added by ethan and matt. Lets it work in both kernel and user space.
-+(So iptables can use it, for instance.) Yea, it goes both ways... */
-+#if __KERNEL__
-+ #define malloc(foo) kmalloc(foo,GFP_ATOMIC)
-+#else
-+ #define printk(format,args...) printf(format,##args)
-+#endif
-+
-+void regerror(char * s)
-+{
-+ printk("<3>Regexp: %s\n", s);
-+ /* NOTREACHED */
-+}
-+
-+/*
-+ * The "internal use only" fields in regexp.h are present to pass info from
-+ * compile to execute that permits the execute phase to run lots faster on
-+ * simple cases. They are:
-+ *
-+ * regstart char that must begin a match; '\0' if none obvious
-+ * reganch is the match anchored (at beginning-of-line only)?
-+ * regmust string (pointer into program) that match must include, or NULL
-+ * regmlen length of regmust string
-+ *
-+ * Regstart and reganch permit very fast decisions on suitable starting points
-+ * for a match, cutting down the work a lot. Regmust permits fast rejection
-+ * of lines that cannot possibly match. The regmust tests are costly enough
-+ * that regcomp() supplies a regmust only if the r.e. contains something
-+ * potentially expensive (at present, the only such thing detected is * or +
-+ * at the start of the r.e., which can involve a lot of backup). Regmlen is
-+ * supplied because the test in regexec() needs it and regcomp() is computing
-+ * it anyway.
-+ */
-+
-+/*
-+ * Structure for regexp "program". This is essentially a linear encoding
-+ * of a nondeterministic finite-state machine (aka syntax charts or
-+ * "railroad normal form" in parsing technology). Each node is an opcode
-+ * plus a "next" pointer, possibly plus an operand. "Next" pointers of
-+ * all nodes except BRANCH implement concatenation; a "next" pointer with
-+ * a BRANCH on both ends of it is connecting two alternatives. (Here we
-+ * have one of the subtle syntax dependencies: an individual BRANCH (as
-+ * opposed to a collection of them) is never concatenated with anything
-+ * because of operator precedence.) The operand of some types of node is
-+ * a literal string; for others, it is a node leading into a sub-FSM. In
-+ * particular, the operand of a BRANCH node is the first node of the branch.
-+ * (NB this is *not* a tree structure: the tail of the branch connects
-+ * to the thing following the set of BRANCHes.) The opcodes are:
-+ */
-+
-+/* definition number opnd? meaning */
-+#define END 0 /* no End of program. */
-+#define BOL 1 /* no Match "" at beginning of line. */
-+#define EOL 2 /* no Match "" at end of line. */
-+#define ANY 3 /* no Match any one character. */
-+#define ANYOF 4 /* str Match any character in this string. */
-+#define ANYBUT 5 /* str Match any character not in this string. */
-+#define BRANCH 6 /* node Match this alternative, or the next... */
-+#define BACK 7 /* no Match "", "next" ptr points backward. */
-+#define EXACTLY 8 /* str Match this string. */
-+#define NOTHING 9 /* no Match empty string. */
-+#define STAR 10 /* node Match this (simple) thing 0 or more times. */
-+#define PLUS 11 /* node Match this (simple) thing 1 or more times. */
-+#define OPEN 20 /* no Mark this point in input as start of #n. */
-+ /* OPEN+1 is number 1, etc. */
-+#define CLOSE 30 /* no Analogous to OPEN. */
-+
-+/*
-+ * Opcode notes:
-+ *
-+ * BRANCH The set of branches constituting a single choice are hooked
-+ * together with their "next" pointers, since precedence prevents
-+ * anything being concatenated to any individual branch. The
-+ * "next" pointer of the last BRANCH in a choice points to the
-+ * thing following the whole choice. This is also where the
-+ * final "next" pointer of each individual branch points; each
-+ * branch starts with the operand node of a BRANCH node.
-+ *
-+ * BACK Normal "next" pointers all implicitly point forward; BACK
-+ * exists to make loop structures possible.
-+ *
-+ * STAR,PLUS '?', and complex '*' and '+', are implemented as circular
-+ * BRANCH structures using BACK. Simple cases (one character
-+ * per match) are implemented with STAR and PLUS for speed
-+ * and to minimize recursive plunges.
-+ *
-+ * OPEN,CLOSE ...are numbered at compile time.
-+ */
-+
-+/*
-+ * A node is one char of opcode followed by two chars of "next" pointer.
-+ * "Next" pointers are stored as two 8-bit pieces, high order first. The
-+ * value is a positive offset from the opcode of the node containing it.
-+ * An operand, if any, simply follows the node. (Note that much of the
-+ * code generation knows about this implicit relationship.)
-+ *
-+ * Using two bytes for the "next" pointer is vast overkill for most things,
-+ * but allows patterns to get big without disasters.
-+ */
-+#define OP(p) (*(p))
-+#define NEXT(p) (((*((p)+1)&0377)<<8) + (*((p)+2)&0377))
-+#define OPERAND(p) ((p) + 3)
-+
-+/*
-+ * See regmagic.h for one further detail of program structure.
-+ */
-+
-+
-+/*
-+ * Utility definitions.
-+ */
-+#ifndef CHARBITS
-+#define UCHARAT(p) ((int)*(unsigned char *)(p))
-+#else
-+#define UCHARAT(p) ((int)*(p)&CHARBITS)
-+#endif
-+
-+#define FAIL(m) { regerror(m); return(NULL); }
-+#define ISMULT(c) ((c) == '*' || (c) == '+' || (c) == '?')
-+#define META "^$.[()|?+*\\"
-+
-+/*
-+ * Flags to be passed up and down.
-+ */
-+#define HASWIDTH 01 /* Known never to match null string. */
-+#define SIMPLE 02 /* Simple enough to be STAR/PLUS operand. */
-+#define SPSTART 04 /* Starts with * or +. */
-+#define WORST 0 /* Worst case. */
-+
-+/*
-+ * Global work variables for regcomp().
-+ */
-+static char *regparse; /* Input-scan pointer. */
-+static int regnpar; /* () count. */
-+static char regdummy;
-+static char *regcode; /* Code-emit pointer; ®dummy = don't. */
-+static long regsize; /* Code size. */
-+
-+/*
-+ * Forward declarations for regcomp()'s friends.
-+ */
-+#ifndef STATIC
-+#define STATIC static
-+#endif
-+STATIC char *reg(int paren,int *flagp);
-+STATIC char *regbranch(int *flagp);
-+STATIC char *regpiece(int *flagp);
-+STATIC char *regatom(int *flagp);
-+STATIC char *regnode(char op);
-+STATIC char *regnext(char *p);
-+STATIC void regc(char b);
-+STATIC void reginsert(char op, char *opnd);
-+STATIC void regtail(char *p, char *val);
-+STATIC void regoptail(char *p, char *val);
-+
-+
-+__kernel_size_t my_strcspn(const char *s1,const char *s2)
-+{
-+ char *scan1;
-+ char *scan2;
-+ int count;
-+
-+ count = 0;
-+ for (scan1 = (char *)s1; *scan1 != '\0'; scan1++) {
-+ for (scan2 = (char *)s2; *scan2 != '\0';) /* ++ moved down. */
-+ if (*scan1 == *scan2++)
-+ return(count);
-+ count++;
-+ }
-+ return(count);
-+}
-+
-+/*
-+ - regcomp - compile a regular expression into internal code
-+ *
-+ * We can't allocate space until we know how big the compiled form will be,
-+ * but we can't compile it (and thus know how big it is) until we've got a
-+ * place to put the code. So we cheat: we compile it twice, once with code
-+ * generation turned off and size counting turned on, and once "for real".
-+ * This also means that we don't allocate space until we are sure that the
-+ * thing really will compile successfully, and we never have to move the
-+ * code and thus invalidate pointers into it. (Note that it has to be in
-+ * one piece because free() must be able to free it all.)
-+ *
-+ * Beware that the optimization-preparation code in here knows about some
-+ * of the structure of the compiled regexp.
-+ */
-+regexp *
-+regcomp(char *exp,int *patternsize)
-+{
-+ register regexp *r;
-+ register char *scan;
-+ register char *longest;
-+ register int len;
-+ int flags;
-+ /* commented out by ethan
-+ extern char *malloc();
-+ */
-+
-+ if (exp == NULL)
-+ FAIL("NULL argument");
-+
-+ /* First pass: determine size, legality. */
-+ regparse = exp;
-+ regnpar = 1;
-+ regsize = 0L;
-+ regcode = ®dummy;
-+ regc(MAGIC);
-+ if (reg(0, &flags) == NULL)
-+ return(NULL);
-+
-+ /* Small enough for pointer-storage convention? */
-+ if (regsize >= 32767L) /* Probably could be 65535L. */
-+ FAIL("regexp too big");
-+
-+ /* Allocate space. */
-+ *patternsize=sizeof(regexp) + (unsigned)regsize;
-+ r = (regexp *)malloc(sizeof(regexp) + (unsigned)regsize);
-+ if (r == NULL)
-+ FAIL("out of space");
-+
-+ /* Second pass: emit code. */
-+ regparse = exp;
-+ regnpar = 1;
-+ regcode = r->program;
-+ regc(MAGIC);
-+ if (reg(0, &flags) == NULL)
-+ return(NULL);
-+
-+ /* Dig out information for optimizations. */
-+ r->regstart = '\0'; /* Worst-case defaults. */
-+ r->reganch = 0;
-+ r->regmust = NULL;
-+ r->regmlen = 0;
-+ scan = r->program+1; /* First BRANCH. */
-+ if (OP(regnext(scan)) == END) { /* Only one top-level choice. */
-+ scan = OPERAND(scan);
-+
-+ /* Starting-point info. */
-+ if (OP(scan) == EXACTLY)
-+ r->regstart = *OPERAND(scan);
-+ else if (OP(scan) == BOL)
-+ r->reganch++;
-+
-+ /*
-+ * If there's something expensive in the r.e., find the
-+ * longest literal string that must appear and make it the
-+ * regmust. Resolve ties in favor of later strings, since
-+ * the regstart check works with the beginning of the r.e.
-+ * and avoiding duplication strengthens checking. Not a
-+ * strong reason, but sufficient in the absence of others.
-+ */
-+ if (flags&SPSTART) {
-+ longest = NULL;
-+ len = 0;
-+ for (; scan != NULL; scan = regnext(scan))
-+ if (OP(scan) == EXACTLY && strlen(OPERAND(scan)) >= len) {
-+ longest = OPERAND(scan);
-+ len = strlen(OPERAND(scan));
-+ }
-+ r->regmust = longest;
-+ r->regmlen = len;
-+ }
-+ }
-+
-+ return(r);
-+}
-+
-+/*
-+ - reg - regular expression, i.e. main body or parenthesized thing
-+ *
-+ * Caller must absorb opening parenthesis.
-+ *
-+ * Combining parenthesis handling with the base level of regular expression
-+ * is a trifle forced, but the need to tie the tails of the branches to what
-+ * follows makes it hard to avoid.
-+ */
-+static char *
-+reg(int paren, int *flagp /* Parenthesized? */ )
-+{
-+ register char *ret;
-+ register char *br;
-+ register char *ender;
-+ register int parno = 0; /* 0 makes gcc happy */
-+ int flags;
-+
-+ *flagp = HASWIDTH; /* Tentatively. */
-+
-+ /* Make an OPEN node, if parenthesized. */
-+ if (paren) {
-+ if (regnpar >= NSUBEXP)
-+ FAIL("too many ()");
-+ parno = regnpar;
-+ regnpar++;
-+ ret = regnode(OPEN+parno);
-+ } else
-+ ret = NULL;
-+
-+ /* Pick up the branches, linking them together. */
-+ br = regbranch(&flags);
-+ if (br == NULL)
-+ return(NULL);
-+ if (ret != NULL)
-+ regtail(ret, br); /* OPEN -> first. */
-+ else
-+ ret = br;
-+ if (!(flags&HASWIDTH))
-+ *flagp &= ~HASWIDTH;
-+ *flagp |= flags&SPSTART;
-+ while (*regparse == '|') {
-+ regparse++;
-+ br = regbranch(&flags);
-+ if (br == NULL)
-+ return(NULL);
-+ regtail(ret, br); /* BRANCH -> BRANCH. */
-+ if (!(flags&HASWIDTH))
-+ *flagp &= ~HASWIDTH;
-+ *flagp |= flags&SPSTART;
-+ }
-+
-+ /* Make a closing node, and hook it on the end. */
-+ ender = regnode((paren) ? CLOSE+parno : END);
-+ regtail(ret, ender);
-+
-+ /* Hook the tails of the branches to the closing node. */
-+ for (br = ret; br != NULL; br = regnext(br))
-+ regoptail(br, ender);
-+
-+ /* Check for proper termination. */
-+ if (paren && *regparse++ != ')') {
-+ FAIL("unmatched ()");
-+ } else if (!paren && *regparse != '\0') {
-+ if (*regparse == ')') {
-+ FAIL("unmatched ()");
-+ } else
-+ FAIL("junk on end"); /* "Can't happen". */
-+ /* NOTREACHED */
-+ }
-+
-+ return(ret);
-+}
-+
-+/*
-+ - regbranch - one alternative of an | operator
-+ *
-+ * Implements the concatenation operator.
-+ */
-+static char *
-+regbranch(int *flagp)
-+{
-+ register char *ret;
-+ register char *chain;
-+ register char *latest;
-+ int flags;
-+
-+ *flagp = WORST; /* Tentatively. */
-+
-+ ret = regnode(BRANCH);
-+ chain = NULL;
-+ while (*regparse != '\0' && *regparse != '|' && *regparse != ')') {
-+ latest = regpiece(&flags);
-+ if (latest == NULL)
-+ return(NULL);
-+ *flagp |= flags&HASWIDTH;
-+ if (chain == NULL) /* First piece. */
-+ *flagp |= flags&SPSTART;
-+ else
-+ regtail(chain, latest);
-+ chain = latest;
-+ }
-+ if (chain == NULL) /* Loop ran zero times. */
-+ (void) regnode(NOTHING);
-+
-+ return(ret);
-+}
-+
-+/*
-+ - regpiece - something followed by possible [*+?]
-+ *
-+ * Note that the branching code sequences used for ? and the general cases
-+ * of * and + are somewhat optimized: they use the same NOTHING node as
-+ * both the endmarker for their branch list and the body of the last branch.
-+ * It might seem that this node could be dispensed with entirely, but the
-+ * endmarker role is not redundant.
-+ */
-+static char *
-+regpiece(int *flagp)
-+{
-+ register char *ret;
-+ register char op;
-+ register char *next;
-+ int flags;
-+
-+ ret = regatom(&flags);
-+ if (ret == NULL)
-+ return(NULL);
-+
-+ op = *regparse;
-+ if (!ISMULT(op)) {
-+ *flagp = flags;
-+ return(ret);
-+ }
-+
-+ if (!(flags&HASWIDTH) && op != '?')
-+ FAIL("*+ operand could be empty");
-+ *flagp = (op != '+') ? (WORST|SPSTART) : (WORST|HASWIDTH);
-+
-+ if (op == '*' && (flags&SIMPLE))
-+ reginsert(STAR, ret);
-+ else if (op == '*') {
-+ /* Emit x* as (x&|), where & means "self". */
-+ reginsert(BRANCH, ret); /* Either x */
-+ regoptail(ret, regnode(BACK)); /* and loop */
-+ regoptail(ret, ret); /* back */
-+ regtail(ret, regnode(BRANCH)); /* or */
-+ regtail(ret, regnode(NOTHING)); /* null. */
-+ } else if (op == '+' && (flags&SIMPLE))
-+ reginsert(PLUS, ret);
-+ else if (op == '+') {
-+ /* Emit x+ as x(&|), where & means "self". */
-+ next = regnode(BRANCH); /* Either */
-+ regtail(ret, next);
-+ regtail(regnode(BACK), ret); /* loop back */
-+ regtail(next, regnode(BRANCH)); /* or */
-+ regtail(ret, regnode(NOTHING)); /* null. */
-+ } else if (op == '?') {
-+ /* Emit x? as (x|) */
-+ reginsert(BRANCH, ret); /* Either x */
-+ regtail(ret, regnode(BRANCH)); /* or */
-+ next = regnode(NOTHING); /* null. */
-+ regtail(ret, next);
-+ regoptail(ret, next);
-+ }
-+ regparse++;
-+ if (ISMULT(*regparse))
-+ FAIL("nested *?+");
-+
-+ return(ret);
-+}
-+
-+/*
-+ - regatom - the lowest level
-+ *
-+ * Optimization: gobbles an entire sequence of ordinary characters so that
-+ * it can turn them into a single node, which is smaller to store and
-+ * faster to run. Backslashed characters are exceptions, each becoming a
-+ * separate node; the code is simpler that way and it's not worth fixing.
-+ */
-+static char *
-+regatom(int *flagp)
-+{
-+ register char *ret;
-+ int flags;
-+
-+ *flagp = WORST; /* Tentatively. */
-+
-+ switch (*regparse++) {
-+ case '^':
-+ ret = regnode(BOL);
-+ break;
-+ case '$':
-+ ret = regnode(EOL);
-+ break;
-+ case '.':
-+ ret = regnode(ANY);
-+ *flagp |= HASWIDTH|SIMPLE;
-+ break;
-+ case '[': {
-+ register int class;
-+ register int classend;
-+
-+ if (*regparse == '^') { /* Complement of range. */
-+ ret = regnode(ANYBUT);
-+ regparse++;
-+ } else
-+ ret = regnode(ANYOF);
-+ if (*regparse == ']' || *regparse == '-')
-+ regc(*regparse++);
-+ while (*regparse != '\0' && *regparse != ']') {
-+ if (*regparse == '-') {
-+ regparse++;
-+ if (*regparse == ']' || *regparse == '\0')
-+ regc('-');
-+ else {
-+ class = UCHARAT(regparse-2)+1;
-+ classend = UCHARAT(regparse);
-+ if (class > classend+1)
-+ FAIL("invalid [] range");
-+ for (; class <= classend; class++)
-+ regc(class);
-+ regparse++;
-+ }
-+ } else
-+ regc(*regparse++);
-+ }
-+ regc('\0');
-+ if (*regparse != ']')
-+ FAIL("unmatched []");
-+ regparse++;
-+ *flagp |= HASWIDTH|SIMPLE;
-+ }
-+ break;
-+ case '(':
-+ ret = reg(1, &flags);
-+ if (ret == NULL)
-+ return(NULL);
-+ *flagp |= flags&(HASWIDTH|SPSTART);
-+ break;
-+ case '\0':
-+ case '|':
-+ case ')':
-+ FAIL("internal urp"); /* Supposed to be caught earlier. */
-+ break;
-+ case '?':
-+ case '+':
-+ case '*':
-+ FAIL("?+* follows nothing");
-+ break;
-+ case '\\':
-+ if (*regparse == '\0')
-+ FAIL("trailing \\");
-+ ret = regnode(EXACTLY);
-+ regc(*regparse++);
-+ regc('\0');
-+ *flagp |= HASWIDTH|SIMPLE;
-+ break;
-+ default: {
-+ register int len;
-+ register char ender;
-+
-+ regparse--;
-+ len = my_strcspn((const char *)regparse, (const char *)META);
-+ if (len <= 0)
-+ FAIL("internal disaster");
-+ ender = *(regparse+len);
-+ if (len > 1 && ISMULT(ender))
-+ len--; /* Back off clear of ?+* operand. */
-+ *flagp |= HASWIDTH;
-+ if (len == 1)
-+ *flagp |= SIMPLE;
-+ ret = regnode(EXACTLY);
-+ while (len > 0) {
-+ regc(*regparse++);
-+ len--;
-+ }
-+ regc('\0');
-+ }
-+ break;
-+ }
-+
-+ return(ret);
-+}
-+
-+/*
-+ - regnode - emit a node
-+ */
-+static char * /* Location. */
-+regnode(char op)
-+{
-+ register char *ret;
-+ register char *ptr;
-+
-+ ret = regcode;
-+ if (ret == ®dummy) {
-+ regsize += 3;
-+ return(ret);
-+ }
-+
-+ ptr = ret;
-+ *ptr++ = op;
-+ *ptr++ = '\0'; /* Null "next" pointer. */
-+ *ptr++ = '\0';
-+ regcode = ptr;
-+
-+ return(ret);
-+}
-+
-+/*
-+ - regc - emit (if appropriate) a byte of code
-+ */
-+static void
-+regc(char b)
-+{
-+ if (regcode != ®dummy)
-+ *regcode++ = b;
-+ else
-+ regsize++;
-+}
-+
-+/*
-+ - reginsert - insert an operator in front of already-emitted operand
-+ *
-+ * Means relocating the operand.
-+ */
-+static void
-+reginsert(char op, char* opnd)
-+{
-+ register char *src;
-+ register char *dst;
-+ register char *place;
-+
-+ if (regcode == ®dummy) {
-+ regsize += 3;
-+ return;
-+ }
-+
-+ src = regcode;
-+ regcode += 3;
-+ dst = regcode;
-+ while (src > opnd)
-+ *--dst = *--src;
-+
-+ place = opnd; /* Op node, where operand used to be. */
-+ *place++ = op;
-+ *place++ = '\0';
-+ *place++ = '\0';
-+}
-+
-+/*
-+ - regtail - set the next-pointer at the end of a node chain
-+ */
-+static void
-+regtail(char *p, char *val)
-+{
-+ register char *scan;
-+ register char *temp;
-+ register int offset;
-+
-+ if (p == ®dummy)
-+ return;
-+
-+ /* Find last node. */
-+ scan = p;
-+ for (;;) {
-+ temp = regnext(scan);
-+ if (temp == NULL)
-+ break;
-+ scan = temp;
-+ }
-+
-+ if (OP(scan) == BACK)
-+ offset = scan - val;
-+ else
-+ offset = val - scan;
-+ *(scan+1) = (offset>>8)&0377;
-+ *(scan+2) = offset&0377;
-+}
-+
-+/*
-+ - regoptail - regtail on operand of first argument; nop if operandless
-+ */
-+static void
-+regoptail(char *p, char *val)
-+{
-+ /* "Operandless" and "op != BRANCH" are synonymous in practice. */
-+ if (p == NULL || p == ®dummy || OP(p) != BRANCH)
-+ return;
-+ regtail(OPERAND(p), val);
-+}
-+
-+/*
-+ * regexec and friends
-+ */
-+
-+/*
-+ * Global work variables for regexec().
-+ */
-+static char *reginput; /* String-input pointer. */
-+static char *regbol; /* Beginning of input, for ^ check. */
-+static char **regstartp; /* Pointer to startp array. */
-+static char **regendp; /* Ditto for endp. */
-+
-+/*
-+ * Forwards.
-+ */
-+STATIC int regtry(regexp *prog, char *string);
-+STATIC int regmatch(char *prog);
-+STATIC int regrepeat(char *p);
-+
-+#ifdef DEBUG
-+int regnarrate = 0;
-+void regdump();
-+STATIC char *regprop(char *op);
-+#endif
-+
-+/*
-+ - regexec - match a regexp against a string
-+ */
-+int
-+regexec(regexp *prog, char *string)
-+{
-+ register char *s;
-+
-+ /* Be paranoid... */
-+ if (prog == NULL || string == NULL) {
-+ printk("<3>Regexp: NULL parameter\n");
-+ return(0);
-+ }
-+
-+ /* Check validity of program. */
-+ if (UCHARAT(prog->program) != MAGIC) {
-+ printk("<3>Regexp: corrupted program\n");
-+ return(0);
-+ }
-+
-+ /* If there is a "must appear" string, look for it. */
-+ if (prog->regmust != NULL) {
-+ s = string;
-+ while ((s = strchr(s, prog->regmust[0])) != NULL) {
-+ if (strncmp(s, prog->regmust, prog->regmlen) == 0)
-+ break; /* Found it. */
-+ s++;
-+ }
-+ if (s == NULL) /* Not present. */
-+ return(0);
-+ }
-+
-+ /* Mark beginning of line for ^ . */
-+ regbol = string;
-+
-+ /* Simplest case: anchored match need be tried only once. */
-+ if (prog->reganch)
-+ return(regtry(prog, string));
-+
-+ /* Messy cases: unanchored match. */
-+ s = string;
-+ if (prog->regstart != '\0')
-+ /* We know what char it must start with. */
-+ while ((s = strchr(s, prog->regstart)) != NULL) {
-+ if (regtry(prog, s))
-+ return(1);
-+ s++;
-+ }
-+ else
-+ /* We don't -- general case. */
-+ do {
-+ if (regtry(prog, s))
-+ return(1);
-+ } while (*s++ != '\0');
-+
-+ /* Failure. */
-+ return(0);
-+}
-+
-+/*
-+ - regtry - try match at specific point
-+ */
-+static int /* 0 failure, 1 success */
-+regtry(regexp *prog, char *string)
-+{
-+ register int i;
-+ register char **sp;
-+ register char **ep;
-+
-+ reginput = string;
-+ regstartp = prog->startp;
-+ regendp = prog->endp;
-+
-+ sp = prog->startp;
-+ ep = prog->endp;
-+ for (i = NSUBEXP; i > 0; i--) {
-+ *sp++ = NULL;
-+ *ep++ = NULL;
-+ }
-+ if (regmatch(prog->program + 1)) {
-+ prog->startp[0] = string;
-+ prog->endp[0] = reginput;
-+ return(1);
-+ } else
-+ return(0);
-+}
-+
-+/*
-+ - regmatch - main matching routine
-+ *
-+ * Conceptually the strategy is simple: check to see whether the current
-+ * node matches, call self recursively to see whether the rest matches,
-+ * and then act accordingly. In practice we make some effort to avoid
-+ * recursion, in particular by going through "ordinary" nodes (that don't
-+ * need to know whether the rest of the match failed) by a loop instead of
-+ * by recursion.
-+ */
-+static int /* 0 failure, 1 success */
-+regmatch(char *prog)
-+{
-+ register char *scan = prog; /* Current node. */
-+ char *next; /* Next node. */
-+
-+#ifdef DEBUG
-+ if (scan != NULL && regnarrate)
-+ fprintf(stderr, "%s(\n", regprop(scan));
-+#endif
-+ while (scan != NULL) {
-+#ifdef DEBUG
-+ if (regnarrate)
-+ fprintf(stderr, "%s...\n", regprop(scan));
-+#endif
-+ next = regnext(scan);
-+
-+ switch (OP(scan)) {
-+ case BOL:
-+ if (reginput != regbol)
-+ return(0);
-+ break;
-+ case EOL:
-+ if (*reginput != '\0')
-+ return(0);
-+ break;
-+ case ANY:
-+ if (*reginput == '\0')
-+ return(0);
-+ reginput++;
-+ break;
-+ case EXACTLY: {
-+ register int len;
-+ register char *opnd;
-+
-+ opnd = OPERAND(scan);
-+ /* Inline the first character, for speed. */
-+ if (*opnd != *reginput)
-+ return(0);
-+ len = strlen(opnd);
-+ if (len > 1 && strncmp(opnd, reginput, len) != 0)
-+ return(0);
-+ reginput += len;
-+ }
-+ break;
-+ case ANYOF:
-+ if (*reginput == '\0' || strchr(OPERAND(scan), *reginput) == NULL)
-+ return(0);
-+ reginput++;
-+ break;
-+ case ANYBUT:
-+ if (*reginput == '\0' || strchr(OPERAND(scan), *reginput) != NULL)
-+ return(0);
-+ reginput++;
-+ break;
-+ case NOTHING:
-+ case BACK:
-+ break;
-+ case OPEN+1:
-+ case OPEN+2:
-+ case OPEN+3:
-+ case OPEN+4:
-+ case OPEN+5:
-+ case OPEN+6:
-+ case OPEN+7:
-+ case OPEN+8:
-+ case OPEN+9: {
-+ register int no;
-+ register char *save;
-+
-+ no = OP(scan) - OPEN;
-+ save = reginput;
-+
-+ if (regmatch(next)) {
-+ /*
-+ * Don't set startp if some later
-+ * invocation of the same parentheses
-+ * already has.
-+ */
-+ if (regstartp[no] == NULL)
-+ regstartp[no] = save;
-+ return(1);
-+ } else
-+ return(0);
-+ }
-+ break;
-+ case CLOSE+1:
-+ case CLOSE+2:
-+ case CLOSE+3:
-+ case CLOSE+4:
-+ case CLOSE+5:
-+ case CLOSE+6:
-+ case CLOSE+7:
-+ case CLOSE+8:
-+ case CLOSE+9:
-+ {
-+ register int no;
-+ register char *save;
-+
-+ no = OP(scan) - CLOSE;
-+ save = reginput;
-+
-+ if (regmatch(next)) {
-+ /*
-+ * Don't set endp if some later
-+ * invocation of the same parentheses
-+ * already has.
-+ */
-+ if (regendp[no] == NULL)
-+ regendp[no] = save;
-+ return(1);
-+ } else
-+ return(0);
-+ }
-+ break;
-+ case BRANCH: {
-+ register char *save;
-+
-+ if (OP(next) != BRANCH) /* No choice. */
-+ next = OPERAND(scan); /* Avoid recursion. */
-+ else {
-+ do {
-+ save = reginput;
-+ if (regmatch(OPERAND(scan)))
-+ return(1);
-+ reginput = save;
-+ scan = regnext(scan);
-+ } while (scan != NULL && OP(scan) == BRANCH);
-+ return(0);
-+ /* NOTREACHED */
-+ }
-+ }
-+ break;
-+ case STAR:
-+ case PLUS: {
-+ register char nextch;
-+ register int no;
-+ register char *save;
-+ register int min;
-+
-+ /*
-+ * Lookahead to avoid useless match attempts
-+ * when we know what character comes next.
-+ */
-+ nextch = '\0';
-+ if (OP(next) == EXACTLY)
-+ nextch = *OPERAND(next);
-+ min = (OP(scan) == STAR) ? 0 : 1;
-+ save = reginput;
-+ no = regrepeat(OPERAND(scan));
-+ while (no >= min) {
-+ /* If it could work, try it. */
-+ if (nextch == '\0' || *reginput == nextch)
-+ if (regmatch(next))
-+ return(1);
-+ /* Couldn't or didn't -- back up. */
-+ no--;
-+ reginput = save + no;
-+ }
-+ return(0);
-+ }
-+ break;
-+ case END:
-+ return(1); /* Success! */
-+ break;
-+ default:
-+ printk("<3>Regexp: memory corruption\n");
-+ return(0);
-+ break;
-+ }
-+
-+ scan = next;
-+ }
-+
-+ /*
-+ * We get here only if there's trouble -- normally "case END" is
-+ * the terminating point.
-+ */
-+ printk("<3>Regexp: corrupted pointers\n");
-+ return(0);
-+}
-+
-+/*
-+ - regrepeat - repeatedly match something simple, report how many
-+ */
-+static int
-+regrepeat(char *p)
-+{
-+ register int count = 0;
-+ register char *scan;
-+ register char *opnd;
-+
-+ scan = reginput;
-+ opnd = OPERAND(p);
-+ switch (OP(p)) {
-+ case ANY:
-+ count = strlen(scan);
-+ scan += count;
-+ break;
-+ case EXACTLY:
-+ while (*opnd == *scan) {
-+ count++;
-+ scan++;
-+ }
-+ break;
-+ case ANYOF:
-+ while (*scan != '\0' && strchr(opnd, *scan) != NULL) {
-+ count++;
-+ scan++;
-+ }
-+ break;
-+ case ANYBUT:
-+ while (*scan != '\0' && strchr(opnd, *scan) == NULL) {
-+ count++;
-+ scan++;
-+ }
-+ break;
-+ default: /* Oh dear. Called inappropriately. */
-+ printk("<3>Regexp: internal foulup\n");
-+ count = 0; /* Best compromise. */
-+ break;
-+ }
-+ reginput = scan;
-+
-+ return(count);
-+}
-+
-+/*
-+ - regnext - dig the "next" pointer out of a node
-+ */
-+static char*
-+regnext(char *p)
-+{
-+ register int offset;
-+
-+ if (p == ®dummy)
-+ return(NULL);
-+
-+ offset = NEXT(p);
-+ if (offset == 0)
-+ return(NULL);
-+
-+ if (OP(p) == BACK)
-+ return(p-offset);
-+ else
-+ return(p+offset);
-+}
-+
-+#ifdef DEBUG
-+
-+STATIC char *regprop();
-+
-+/*
-+ - regdump - dump a regexp onto stdout in vaguely comprehensible form
-+ */
-+void
-+regdump(regexp *r)
-+{
-+ register char *s;
-+ register char op = EXACTLY; /* Arbitrary non-END op. */
-+ register char *next;
-+ /* extern char *strchr(); */
-+
-+
-+ s = r->program + 1;
-+ while (op != END) { /* While that wasn't END last time... */
-+ op = OP(s);
-+ printf("%2d%s", s-r->program, regprop(s)); /* Where, what. */
-+ next = regnext(s);
-+ if (next == NULL) /* Next ptr. */
-+ printf("(0)");
-+ else
-+ printf("(%d)", (s-r->program)+(next-s));
-+ s += 3;
-+ if (op == ANYOF || op == ANYBUT || op == EXACTLY) {
-+ /* Literal string, where present. */
-+ while (*s != '\0') {
-+ putchar(*s);
-+ s++;
-+ }
-+ s++;
-+ }
-+ putchar('\n');
-+ }
-+
-+ /* Header fields of interest. */
-+ if (r->regstart != '\0')
-+ printf("start `%c' ", r->regstart);
-+ if (r->reganch)
-+ printf("anchored ");
-+ if (r->regmust != NULL)
-+ printf("must have \"%s\"", r->regmust);
-+ printf("\n");
-+}
-+
-+/*
-+ - regprop - printable representation of opcode
-+ */
-+static char *
-+regprop(char *op)
-+{
-+#define BUFLEN 50
-+ register char *p;
-+ static char buf[BUFLEN];
-+
-+ strcpy(buf, ":");
-+
-+ switch (OP(op)) {
-+ case BOL:
-+ p = "BOL";
-+ break;
-+ case EOL:
-+ p = "EOL";
-+ break;
-+ case ANY:
-+ p = "ANY";
-+ break;
-+ case ANYOF:
-+ p = "ANYOF";
-+ break;
-+ case ANYBUT:
-+ p = "ANYBUT";
-+ break;
-+ case BRANCH:
-+ p = "BRANCH";
-+ break;
-+ case EXACTLY:
-+ p = "EXACTLY";
-+ break;
-+ case NOTHING:
-+ p = "NOTHING";
-+ break;
-+ case BACK:
-+ p = "BACK";
-+ break;
-+ case END:
-+ p = "END";
-+ break;
-+ case OPEN+1:
-+ case OPEN+2:
-+ case OPEN+3:
-+ case OPEN+4:
-+ case OPEN+5:
-+ case OPEN+6:
-+ case OPEN+7:
-+ case OPEN+8:
-+ case OPEN+9:
-+ snprintf(buf+strlen(buf),BUFLEN-strlen(buf), "OPEN%d", OP(op)-OPEN);
-+ p = NULL;
-+ break;
-+ case CLOSE+1:
-+ case CLOSE+2:
-+ case CLOSE+3:
-+ case CLOSE+4:
-+ case CLOSE+5:
-+ case CLOSE+6:
-+ case CLOSE+7:
-+ case CLOSE+8:
-+ case CLOSE+9:
-+ snprintf(buf+strlen(buf),BUFLEN-strlen(buf), "CLOSE%d", OP(op)-CLOSE);
-+ p = NULL;
-+ break;
-+ case STAR:
-+ p = "STAR";
-+ break;
-+ case PLUS:
-+ p = "PLUS";
-+ break;
-+ default:
-+ printk("<3>Regexp: corrupted opcode\n");
-+ break;
-+ }
-+ if (p != NULL)
-+ strncat(buf, p, BUFLEN-strlen(buf));
-+ return(buf);
-+}
-+#endif
-+
-+
-diff -Nurp linux-2.4.30/net/ipv4/netfilter/regexp/regexp.h linux-2.4.30-layer7/net/ipv4/netfilter/regexp/regexp.h
---- linux-2.4.30/net/ipv4/netfilter/regexp/regexp.h 1969-12-31 18:00:00.000000000 -0600
-+++ linux-2.4.30-layer7/net/ipv4/netfilter/regexp/regexp.h 2005-05-03 18:37:03.000000000 -0500
-@@ -0,0 +1,40 @@
-+/*
-+ * Definitions etc. for regexp(3) routines.
-+ *
-+ * Caveat: this is V8 regexp(3) [actually, a reimplementation thereof],
-+ * not the System V one.
-+ */
-+
-+#ifndef REGEXP_H
-+#define REGEXP_H
-+
-+/*
-+http://www.opensource.apple.com/darwinsource/10.3/expect-1/expect/expect.h ,
-+which contains a version of this library, says:
-+
-+ *
-+ * NSUBEXP must be at least 10, and no greater than 117 or the parser
-+ * will not work properly.
-+ *
-+
-+However, it looks rather like this library is limited to 10. If you think
-+otherwise, let us know.
-+*/
-+
-+#define NSUBEXP 10
-+typedef struct regexp {
-+ char *startp[NSUBEXP];
-+ char *endp[NSUBEXP];
-+ char regstart; /* Internal use only. */
-+ char reganch; /* Internal use only. */
-+ char *regmust; /* Internal use only. */
-+ int regmlen; /* Internal use only. */
-+ char program[1]; /* Unwarranted chumminess with compiler. */
-+} regexp;
-+
-+regexp * regcomp(char *exp, int *patternsize);
-+int regexec(regexp *prog, char *string);
-+void regsub(regexp *prog, char *source, char *dest);
-+void regerror(char *s);
-+
-+#endif
-diff -Nurp linux-2.4.30/net/ipv4/netfilter/regexp/regmagic.h linux-2.4.30-layer7/net/ipv4/netfilter/regexp/regmagic.h
---- linux-2.4.30/net/ipv4/netfilter/regexp/regmagic.h 1969-12-31 18:00:00.000000000 -0600
-+++ linux-2.4.30-layer7/net/ipv4/netfilter/regexp/regmagic.h 2005-05-03 18:37:03.000000000 -0500
-@@ -0,0 +1,5 @@
-+/*
-+ * The first byte of the regexp internal "program" is actually this magic
-+ * number; the start node begins in the second byte.
-+ */
-+#define MAGIC 0234
-diff -Nurp linux-2.4.30/net/ipv4/netfilter/regexp/regsub.c linux-2.4.30-layer7/net/ipv4/netfilter/regexp/regsub.c
---- linux-2.4.30/net/ipv4/netfilter/regexp/regsub.c 1969-12-31 18:00:00.000000000 -0600
-+++ linux-2.4.30-layer7/net/ipv4/netfilter/regexp/regsub.c 2005-05-03 18:37:03.000000000 -0500
-@@ -0,0 +1,95 @@
-+/*
-+ * regsub
-+ * @(#)regsub.c 1.3 of 2 April 86
-+ *
-+ * Copyright (c) 1986 by University of Toronto.
-+ * Written by Henry Spencer. Not derived from licensed software.
-+ *
-+ * Permission is granted to anyone to use this software for any
-+ * purpose on any computer system, and to redistribute it freely,
-+ * subject to the following restrictions:
-+ *
-+ * 1. The author is not responsible for the consequences of use of
-+ * this software, no matter how awful, even if they arise
-+ * from defects in it.
-+ *
-+ * 2. The origin of this software must not be misrepresented, either
-+ * by explicit claim or by omission.
-+ *
-+ * 3. Altered versions must be plainly marked as such, and must not
-+ * be misrepresented as being the original software.
-+ *
-+ *
-+ * This code was modified by Ethan Sommer to work within the kernel
-+ * (it now uses kmalloc etc..)
-+ *
-+ */
-+#include "regexp.h"
-+#include "regmagic.h"
-+#include <linux/string.h>
-+
-+
-+#ifndef CHARBITS
-+#define UCHARAT(p) ((int)*(unsigned char *)(p))
-+#else
-+#define UCHARAT(p) ((int)*(p)&CHARBITS)
-+#endif
-+
-+#if 0
-+//void regerror(char * s)
-+//{
-+// printk("regexp(3): %s", s);
-+// /* NOTREACHED */
-+//}
-+#endif
-+
-+/*
-+ - regsub - perform substitutions after a regexp match
-+ */
-+void
-+regsub(regexp * prog, char * source, char * dest)
-+{
-+ register char *src;
-+ register char *dst;
-+ register char c;
-+ register int no;
-+ register int len;
-+
-+ /* Not necessary and gcc doesn't like it -MLS */
-+ /*extern char *strncpy();*/
-+
-+ if (prog == NULL || source == NULL || dest == NULL) {
-+ regerror("NULL parm to regsub");
-+ return;
-+ }
-+ if (UCHARAT(prog->program) != MAGIC) {
-+ regerror("damaged regexp fed to regsub");
-+ return;
-+ }
-+
-+ src = source;
-+ dst = dest;
-+ while ((c = *src++) != '\0') {
-+ if (c == '&')
-+ no = 0;
-+ else if (c == '\\' && '0' <= *src && *src <= '9')
-+ no = *src++ - '0';
-+ else
-+ no = -1;
-+
-+ if (no < 0) { /* Ordinary character. */
-+ if (c == '\\' && (*src == '\\' || *src == '&'))
-+ c = *src++;
-+ *dst++ = c;
-+ } else if (prog->startp[no] != NULL && prog->endp[no] != NULL) {
-+ len = prog->endp[no] - prog->startp[no];
-+ (void) strncpy(dst, prog->startp[no], len);
-+ dst += len;
-+ if (len != 0 && *(dst-1) == '\0') { /* strncpy hit NUL. */
-+ regerror("damaged match string");
-+ return;
-+ }
-+ }
-+ }
-+ *dst++ = '\0';
-+}
+++ /dev/null
-diff -urN linux-2.4.29-old/include/linux/netfilter_ipv4/ip_conntrack.h linux-2.4.29-dev/include/linux/netfilter_ipv4/ip_conntrack.h
---- linux-2.4.29-old/include/linux/netfilter_ipv4/ip_conntrack.h 2005-04-02 19:04:11.000000000 +0200
-+++ linux-2.4.29-dev/include/linux/netfilter_ipv4/ip_conntrack.h 2005-04-02 19:41:05.000000000 +0200
-@@ -50,16 +50,19 @@
-
- #include <linux/netfilter_ipv4/ip_conntrack_tcp.h>
- #include <linux/netfilter_ipv4/ip_conntrack_icmp.h>
-+#include <linux/netfilter_ipv4/ip_conntrack_proto_gre.h>
-
- /* per conntrack: protocol private data */
- union ip_conntrack_proto {
- /* insert conntrack proto private data here */
- struct ip_ct_tcp tcp;
- struct ip_ct_icmp icmp;
-+ struct ip_ct_gre gre;
- };
-
- union ip_conntrack_expect_proto {
- /* insert expect proto private data here */
-+ struct ip_ct_gre_expect gre;
- };
-
- /* Add protocol helper include file here */
-@@ -67,6 +70,7 @@
-
- #include <linux/netfilter_ipv4/ip_conntrack_ftp.h>
- #include <linux/netfilter_ipv4/ip_conntrack_irc.h>
-+#include <linux/netfilter_ipv4/ip_conntrack_pptp.h>
-
- /* per expectation: application helper private data */
- union ip_conntrack_expect_help {
-@@ -74,6 +78,7 @@
- struct ip_ct_amanda_expect exp_amanda_info;
- struct ip_ct_ftp_expect exp_ftp_info;
- struct ip_ct_irc_expect exp_irc_info;
-+ struct ip_ct_pptp_expect exp_pptp_info;
-
- #ifdef CONFIG_IP_NF_NAT_NEEDED
- union {
-@@ -87,14 +92,17 @@
- /* insert conntrack helper private data (master) here */
- struct ip_ct_ftp_master ct_ftp_info;
- struct ip_ct_irc_master ct_irc_info;
-+ struct ip_ct_pptp_master ct_pptp_info;
- };
-
- #ifdef CONFIG_IP_NF_NAT_NEEDED
- #include <linux/netfilter_ipv4/ip_nat.h>
-+#include <linux/netfilter_ipv4/ip_nat_pptp.h>
-
- /* per conntrack: nat application helper private data */
- union ip_conntrack_nat_help {
- /* insert nat helper private data here */
-+ struct ip_nat_pptp nat_pptp_info;
- };
- #endif
-
-diff -urN linux-2.4.29-old/include/linux/netfilter_ipv4/ip_conntrack_pptp.h linux-2.4.29-dev/include/linux/netfilter_ipv4/ip_conntrack_pptp.h
---- linux-2.4.29-old/include/linux/netfilter_ipv4/ip_conntrack_pptp.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.29-dev/include/linux/netfilter_ipv4/ip_conntrack_pptp.h 2005-04-02 19:09:07.000000000 +0200
-@@ -0,0 +1,313 @@
-+/* PPTP constants and structs */
-+#ifndef _CONNTRACK_PPTP_H
-+#define _CONNTRACK_PPTP_H
-+
-+/* state of the control session */
-+enum pptp_ctrlsess_state {
-+ PPTP_SESSION_NONE, /* no session present */
-+ PPTP_SESSION_ERROR, /* some session error */
-+ PPTP_SESSION_STOPREQ, /* stop_sess request seen */
-+ PPTP_SESSION_REQUESTED, /* start_sess request seen */
-+ PPTP_SESSION_CONFIRMED, /* session established */
-+};
-+
-+/* state of the call inside the control session */
-+enum pptp_ctrlcall_state {
-+ PPTP_CALL_NONE,
-+ PPTP_CALL_ERROR,
-+ PPTP_CALL_OUT_REQ,
-+ PPTP_CALL_OUT_CONF,
-+ PPTP_CALL_IN_REQ,
-+ PPTP_CALL_IN_REP,
-+ PPTP_CALL_IN_CONF,
-+ PPTP_CALL_CLEAR_REQ,
-+};
-+
-+
-+/* conntrack private data */
-+struct ip_ct_pptp_master {
-+ enum pptp_ctrlsess_state sstate; /* session state */
-+
-+ /* everything below is going to be per-expectation in newnat,
-+ * since there could be more than one call within one session */
-+ enum pptp_ctrlcall_state cstate; /* call state */
-+ u_int16_t pac_call_id; /* call id of PAC, host byte order */
-+ u_int16_t pns_call_id; /* call id of PNS, host byte order */
-+};
-+
-+/* conntrack_expect private member */
-+struct ip_ct_pptp_expect {
-+ enum pptp_ctrlcall_state cstate; /* call state */
-+ u_int16_t pac_call_id; /* call id of PAC */
-+ u_int16_t pns_call_id; /* call id of PNS */
-+};
-+
-+
-+#ifdef __KERNEL__
-+
-+#include <linux/netfilter_ipv4/lockhelp.h>
-+DECLARE_LOCK_EXTERN(ip_pptp_lock);
-+
-+#define IP_CONNTR_PPTP PPTP_CONTROL_PORT
-+
-+union pptp_ctrl_union {
-+ void *rawreq;
-+ struct PptpStartSessionRequest *sreq;
-+ struct PptpStartSessionReply *srep;
-+ struct PptpStopSessionRequest *streq;
-+ struct PptpStopSessionReply *strep;
-+ struct PptpOutCallRequest *ocreq;
-+ struct PptpOutCallReply *ocack;
-+ struct PptpInCallRequest *icreq;
-+ struct PptpInCallReply *icack;
-+ struct PptpInCallConnected *iccon;
-+ struct PptpClearCallRequest *clrreq;
-+ struct PptpCallDisconnectNotify *disc;
-+ struct PptpWanErrorNotify *wanerr;
-+ struct PptpSetLinkInfo *setlink;
-+};
-+
-+
-+
-+#define PPTP_CONTROL_PORT 1723
-+
-+#define PPTP_PACKET_CONTROL 1
-+#define PPTP_PACKET_MGMT 2
-+
-+#define PPTP_MAGIC_COOKIE 0x1a2b3c4d
-+
-+struct pptp_pkt_hdr {
-+ __u16 packetLength;
-+ __u16 packetType;
-+ __u32 magicCookie;
-+};
-+
-+/* PptpControlMessageType values */
-+#define PPTP_START_SESSION_REQUEST 1
-+#define PPTP_START_SESSION_REPLY 2
-+#define PPTP_STOP_SESSION_REQUEST 3
-+#define PPTP_STOP_SESSION_REPLY 4
-+#define PPTP_ECHO_REQUEST 5
-+#define PPTP_ECHO_REPLY 6
-+#define PPTP_OUT_CALL_REQUEST 7
-+#define PPTP_OUT_CALL_REPLY 8
-+#define PPTP_IN_CALL_REQUEST 9
-+#define PPTP_IN_CALL_REPLY 10
-+#define PPTP_IN_CALL_CONNECT 11
-+#define PPTP_CALL_CLEAR_REQUEST 12
-+#define PPTP_CALL_DISCONNECT_NOTIFY 13
-+#define PPTP_WAN_ERROR_NOTIFY 14
-+#define PPTP_SET_LINK_INFO 15
-+
-+#define PPTP_MSG_MAX 15
-+
-+/* PptpGeneralError values */
-+#define PPTP_ERROR_CODE_NONE 0
-+#define PPTP_NOT_CONNECTED 1
-+#define PPTP_BAD_FORMAT 2
-+#define PPTP_BAD_VALUE 3
-+#define PPTP_NO_RESOURCE 4
-+#define PPTP_BAD_CALLID 5
-+#define PPTP_REMOVE_DEVICE_ERROR 6
-+
-+struct PptpControlHeader {
-+ __u16 messageType;
-+ __u16 reserved;
-+};
-+
-+/* FramingCapability Bitmap Values */
-+#define PPTP_FRAME_CAP_ASYNC 0x1
-+#define PPTP_FRAME_CAP_SYNC 0x2
-+
-+/* BearerCapability Bitmap Values */
-+#define PPTP_BEARER_CAP_ANALOG 0x1
-+#define PPTP_BEARER_CAP_DIGITAL 0x2
-+
-+struct PptpStartSessionRequest {
-+ __u16 protocolVersion;
-+ __u8 reserved1;
-+ __u8 reserved2;
-+ __u32 framingCapability;
-+ __u32 bearerCapability;
-+ __u16 maxChannels;
-+ __u16 firmwareRevision;
-+ __u8 hostName[64];
-+ __u8 vendorString[64];
-+};
-+
-+/* PptpStartSessionResultCode Values */
-+#define PPTP_START_OK 1
-+#define PPTP_START_GENERAL_ERROR 2
-+#define PPTP_START_ALREADY_CONNECTED 3
-+#define PPTP_START_NOT_AUTHORIZED 4
-+#define PPTP_START_UNKNOWN_PROTOCOL 5
-+
-+struct PptpStartSessionReply {
-+ __u16 protocolVersion;
-+ __u8 resultCode;
-+ __u8 generalErrorCode;
-+ __u32 framingCapability;
-+ __u32 bearerCapability;
-+ __u16 maxChannels;
-+ __u16 firmwareRevision;
-+ __u8 hostName[64];
-+ __u8 vendorString[64];
-+};
-+
-+/* PptpStopReasons */
-+#define PPTP_STOP_NONE 1
-+#define PPTP_STOP_PROTOCOL 2
-+#define PPTP_STOP_LOCAL_SHUTDOWN 3
-+
-+struct PptpStopSessionRequest {
-+ __u8 reason;
-+};
-+
-+/* PptpStopSessionResultCode */
-+#define PPTP_STOP_OK 1
-+#define PPTP_STOP_GENERAL_ERROR 2
-+
-+struct PptpStopSessionReply {
-+ __u8 resultCode;
-+ __u8 generalErrorCode;
-+};
-+
-+struct PptpEchoRequest {
-+ __u32 identNumber;
-+};
-+
-+/* PptpEchoReplyResultCode */
-+#define PPTP_ECHO_OK 1
-+#define PPTP_ECHO_GENERAL_ERROR 2
-+
-+struct PptpEchoReply {
-+ __u32 identNumber;
-+ __u8 resultCode;
-+ __u8 generalErrorCode;
-+ __u16 reserved;
-+};
-+
-+/* PptpFramingType */
-+#define PPTP_ASYNC_FRAMING 1
-+#define PPTP_SYNC_FRAMING 2
-+#define PPTP_DONT_CARE_FRAMING 3
-+
-+/* PptpCallBearerType */
-+#define PPTP_ANALOG_TYPE 1
-+#define PPTP_DIGITAL_TYPE 2
-+#define PPTP_DONT_CARE_BEARER_TYPE 3
-+
-+struct PptpOutCallRequest {
-+ __u16 callID;
-+ __u16 callSerialNumber;
-+ __u32 minBPS;
-+ __u32 maxBPS;
-+ __u32 bearerType;
-+ __u32 framingType;
-+ __u16 packetWindow;
-+ __u16 packetProcDelay;
-+ __u16 reserved1;
-+ __u16 phoneNumberLength;
-+ __u16 reserved2;
-+ __u8 phoneNumber[64];
-+ __u8 subAddress[64];
-+};
-+
-+/* PptpCallResultCode */
-+#define PPTP_OUTCALL_CONNECT 1
-+#define PPTP_OUTCALL_GENERAL_ERROR 2
-+#define PPTP_OUTCALL_NO_CARRIER 3
-+#define PPTP_OUTCALL_BUSY 4
-+#define PPTP_OUTCALL_NO_DIAL_TONE 5
-+#define PPTP_OUTCALL_TIMEOUT 6
-+#define PPTP_OUTCALL_DONT_ACCEPT 7
-+
-+struct PptpOutCallReply {
-+ __u16 callID;
-+ __u16 peersCallID;
-+ __u8 resultCode;
-+ __u8 generalErrorCode;
-+ __u16 causeCode;
-+ __u32 connectSpeed;
-+ __u16 packetWindow;
-+ __u16 packetProcDelay;
-+ __u32 physChannelID;
-+};
-+
-+struct PptpInCallRequest {
-+ __u16 callID;
-+ __u16 callSerialNumber;
-+ __u32 callBearerType;
-+ __u32 physChannelID;
-+ __u16 dialedNumberLength;
-+ __u16 dialingNumberLength;
-+ __u8 dialedNumber[64];
-+ __u8 dialingNumber[64];
-+ __u8 subAddress[64];
-+};
-+
-+/* PptpInCallResultCode */
-+#define PPTP_INCALL_ACCEPT 1
-+#define PPTP_INCALL_GENERAL_ERROR 2
-+#define PPTP_INCALL_DONT_ACCEPT 3
-+
-+struct PptpInCallReply {
-+ __u16 callID;
-+ __u16 peersCallID;
-+ __u8 resultCode;
-+ __u8 generalErrorCode;
-+ __u16 packetWindow;
-+ __u16 packetProcDelay;
-+ __u16 reserved;
-+};
-+
-+struct PptpInCallConnected {
-+ __u16 peersCallID;
-+ __u16 reserved;
-+ __u32 connectSpeed;
-+ __u16 packetWindow;
-+ __u16 packetProcDelay;
-+ __u32 callFramingType;
-+};
-+
-+struct PptpClearCallRequest {
-+ __u16 callID;
-+ __u16 reserved;
-+};
-+
-+struct PptpCallDisconnectNotify {
-+ __u16 callID;
-+ __u8 resultCode;
-+ __u8 generalErrorCode;
-+ __u16 causeCode;
-+ __u16 reserved;
-+ __u8 callStatistics[128];
-+};
-+
-+struct PptpWanErrorNotify {
-+ __u16 peersCallID;
-+ __u16 reserved;
-+ __u32 crcErrors;
-+ __u32 framingErrors;
-+ __u32 hardwareOverRuns;
-+ __u32 bufferOverRuns;
-+ __u32 timeoutErrors;
-+ __u32 alignmentErrors;
-+};
-+
-+struct PptpSetLinkInfo {
-+ __u16 peersCallID;
-+ __u16 reserved;
-+ __u32 sendAccm;
-+ __u32 recvAccm;
-+};
-+
-+
-+struct pptp_priv_data {
-+ __u16 call_id;
-+ __u16 mcall_id;
-+ __u16 pcall_id;
-+};
-+
-+#endif /* __KERNEL__ */
-+#endif /* _CONNTRACK_PPTP_H */
-diff -urN linux-2.4.29-old/include/linux/netfilter_ipv4/ip_conntrack_proto_gre.h linux-2.4.29-dev/include/linux/netfilter_ipv4/ip_conntrack_proto_gre.h
---- linux-2.4.29-old/include/linux/netfilter_ipv4/ip_conntrack_proto_gre.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.29-dev/include/linux/netfilter_ipv4/ip_conntrack_proto_gre.h 2005-04-02 19:10:45.000000000 +0200
-@@ -0,0 +1,123 @@
-+#ifndef _CONNTRACK_PROTO_GRE_H
-+#define _CONNTRACK_PROTO_GRE_H
-+#include <asm/byteorder.h>
-+
-+/* GRE PROTOCOL HEADER */
-+
-+/* GRE Version field */
-+#define GRE_VERSION_1701 0x0
-+#define GRE_VERSION_PPTP 0x1
-+
-+/* GRE Protocol field */
-+#define GRE_PROTOCOL_PPTP 0x880B
-+
-+/* GRE Flags */
-+#define GRE_FLAG_C 0x80
-+#define GRE_FLAG_R 0x40
-+#define GRE_FLAG_K 0x20
-+#define GRE_FLAG_S 0x10
-+#define GRE_FLAG_A 0x80
-+
-+#define GRE_IS_C(f) ((f)&GRE_FLAG_C)
-+#define GRE_IS_R(f) ((f)&GRE_FLAG_R)
-+#define GRE_IS_K(f) ((f)&GRE_FLAG_K)
-+#define GRE_IS_S(f) ((f)&GRE_FLAG_S)
-+#define GRE_IS_A(f) ((f)&GRE_FLAG_A)
-+
-+/* GRE is a mess: Four different standards */
-+struct gre_hdr {
-+#if defined(__LITTLE_ENDIAN_BITFIELD)
-+ __u16 rec:3,
-+ srr:1,
-+ seq:1,
-+ key:1,
-+ routing:1,
-+ csum:1,
-+ version:3,
-+ reserved:4,
-+ ack:1;
-+#elif defined(__BIG_ENDIAN_BITFIELD)
-+ __u16 csum:1,
-+ routing:1,
-+ key:1,
-+ seq:1,
-+ srr:1,
-+ rec:3,
-+ ack:1,
-+ reserved:4,
-+ version:3;
-+#else
-+#error "Adjust your <asm/byteorder.h> defines"
-+#endif
-+ __u16 protocol;
-+};
-+
-+/* modified GRE header for PPTP */
-+struct gre_hdr_pptp {
-+ __u8 flags; /* bitfield */
-+ __u8 version; /* should be GRE_VERSION_PPTP */
-+ __u16 protocol; /* should be GRE_PROTOCOL_PPTP */
-+ __u16 payload_len; /* size of ppp payload, not inc. gre header */
-+ __u16 call_id; /* peer's call_id for this session */
-+ __u32 seq; /* sequence number. Present if S==1 */
-+ __u32 ack; /* seq number of highest packet recieved by */
-+ /* sender in this session */
-+};
-+
-+
-+/* this is part of ip_conntrack */
-+struct ip_ct_gre {
-+ unsigned int stream_timeout;
-+ unsigned int timeout;
-+};
-+
-+/* this is part of ip_conntrack_expect */
-+struct ip_ct_gre_expect {
-+ struct ip_ct_gre_keymap *keymap_orig, *keymap_reply;
-+};
-+
-+#ifdef __KERNEL__
-+struct ip_conntrack_expect;
-+
-+/* structure for original <-> reply keymap */
-+struct ip_ct_gre_keymap {
-+ struct list_head list;
-+
-+ struct ip_conntrack_tuple tuple;
-+};
-+
-+
-+/* add new tuple->key_reply pair to keymap */
-+int ip_ct_gre_keymap_add(struct ip_conntrack_expect *exp,
-+ struct ip_conntrack_tuple *t,
-+ int reply);
-+
-+/* change an existing keymap entry */
-+void ip_ct_gre_keymap_change(struct ip_ct_gre_keymap *km,
-+ struct ip_conntrack_tuple *t);
-+
-+/* delete keymap entries */
-+void ip_ct_gre_keymap_destroy(struct ip_conntrack_expect *exp);
-+
-+
-+/* get pointer to gre key, if present */
-+static inline u_int32_t *gre_key(struct gre_hdr *greh)
-+{
-+ if (!greh->key)
-+ return NULL;
-+ if (greh->csum || greh->routing)
-+ return (u_int32_t *) (greh+sizeof(*greh)+4);
-+ return (u_int32_t *) (greh+sizeof(*greh));
-+}
-+
-+/* get pointer ot gre csum, if present */
-+static inline u_int16_t *gre_csum(struct gre_hdr *greh)
-+{
-+ if (!greh->csum)
-+ return NULL;
-+ return (u_int16_t *) (greh+sizeof(*greh));
-+}
-+
-+#endif /* __KERNEL__ */
-+
-+#endif /* _CONNTRACK_PROTO_GRE_H */
-diff -urN linux-2.4.29-old/include/linux/netfilter_ipv4/ip_conntrack_tuple.h linux-2.4.29-dev/include/linux/netfilter_ipv4/ip_conntrack_tuple.h
---- linux-2.4.29-old/include/linux/netfilter_ipv4/ip_conntrack_tuple.h 2003-11-28 19:26:21.000000000 +0100
-+++ linux-2.4.29-dev/include/linux/netfilter_ipv4/ip_conntrack_tuple.h 2005-04-02 19:07:18.000000000 +0200
-@@ -14,7 +14,7 @@
- union ip_conntrack_manip_proto
- {
- /* Add other protocols here. */
-- u_int16_t all;
-+ u_int32_t all;
-
- struct {
- u_int16_t port;
-@@ -25,6 +25,9 @@
- struct {
- u_int16_t id;
- } icmp;
-+ struct {
-+ u_int32_t key;
-+ } gre;
- };
-
- /* The manipulable part of the tuple. */
-@@ -44,7 +47,7 @@
- u_int32_t ip;
- union {
- /* Add other protocols here. */
-- u_int16_t all;
-+ u_int32_t all;
-
- struct {
- u_int16_t port;
-@@ -55,6 +58,9 @@
- struct {
- u_int8_t type, code;
- } icmp;
-+ struct {
-+ u_int32_t key;
-+ } gre;
- } u;
-
- /* The protocol. */
-@@ -80,10 +86,16 @@
- #ifdef __KERNEL__
-
- #define DUMP_TUPLE(tp) \
--DEBUGP("tuple %p: %u %u.%u.%u.%u:%hu -> %u.%u.%u.%u:%hu\n", \
-+DEBUGP("tuple %p: %u %u.%u.%u.%u:%u -> %u.%u.%u.%u:%u\n", \
- (tp), (tp)->dst.protonum, \
-- NIPQUAD((tp)->src.ip), ntohs((tp)->src.u.all), \
-- NIPQUAD((tp)->dst.ip), ntohs((tp)->dst.u.all))
-+ NIPQUAD((tp)->src.ip), ntohl((tp)->src.u.all), \
-+ NIPQUAD((tp)->dst.ip), ntohl((tp)->dst.u.all))
-+
-+#define DUMP_TUPLE_RAW(x) \
-+ DEBUGP("tuple %p: %u %u.%u.%u.%u:0x%08x -> %u.%u.%u.%u:0x%08x\n",\
-+ (x), (x)->dst.protonum, \
-+ NIPQUAD((x)->src.ip), ntohl((x)->src.u.all), \
-+ NIPQUAD((x)->dst.ip), ntohl((x)->dst.u.all))
-
- #define CTINFO2DIR(ctinfo) ((ctinfo) >= IP_CT_IS_REPLY ? IP_CT_DIR_REPLY : IP_CT_DIR_ORIGINAL)
-
-diff -urN linux-2.4.29-old/include/linux/netfilter_ipv4/ip_nat_pptp.h linux-2.4.29-dev/include/linux/netfilter_ipv4/ip_nat_pptp.h
---- linux-2.4.29-old/include/linux/netfilter_ipv4/ip_nat_pptp.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.29-dev/include/linux/netfilter_ipv4/ip_nat_pptp.h 2005-04-02 19:07:18.000000000 +0200
-@@ -0,0 +1,11 @@
-+/* PPTP constants and structs */
-+#ifndef _NAT_PPTP_H
-+#define _NAT_PPTP_H
-+
-+/* conntrack private data */
-+struct ip_nat_pptp {
-+ u_int16_t pns_call_id; /* NAT'ed PNS call id */
-+ u_int16_t pac_call_id; /* NAT'ed PAC call id */
-+};
-+
-+#endif /* _NAT_PPTP_H */
-diff -urN linux-2.4.29-old/net/ipv4/netfilter/Config.in linux-2.4.29-dev/net/ipv4/netfilter/Config.in
---- linux-2.4.29-old/net/ipv4/netfilter/Config.in 2005-04-02 19:04:11.000000000 +0200
-+++ linux-2.4.29-dev/net/ipv4/netfilter/Config.in 2005-04-02 19:07:18.000000000 +0200
-@@ -10,6 +10,8 @@
- dep_tristate ' Amanda protocol support' CONFIG_IP_NF_AMANDA $CONFIG_IP_NF_CONNTRACK
- dep_tristate ' TFTP protocol support' CONFIG_IP_NF_TFTP $CONFIG_IP_NF_CONNTRACK
- dep_tristate ' IRC protocol support' CONFIG_IP_NF_IRC $CONFIG_IP_NF_CONNTRACK
-+ dep_tristate ' GRE protocol support' CONFIG_IP_NF_CT_PROTO_GRE $CONFIG_IP_NF_CONNTRACK
-+ dep_tristate ' PPTP protocol support' CONFIG_IP_NF_PPTP $CONFIG_IP_NF_CT_PROTO_GRE
- fi
-
- if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
-@@ -67,6 +69,20 @@
- define_bool CONFIG_IP_NF_NAT_NEEDED y
- dep_tristate ' MASQUERADE target support' CONFIG_IP_NF_TARGET_MASQUERADE $CONFIG_IP_NF_NAT
- dep_tristate ' REDIRECT target support' CONFIG_IP_NF_TARGET_REDIRECT $CONFIG_IP_NF_NAT
-+ if [ "$CONFIG_IP_NF_PPTP" = "m" ]; then
-+ define_tristate CONFIG_IP_NF_NAT_PPTP m
-+ else
-+ if [ "$CONFIG_IP_NF_PPTP" = "y" ]; then
-+ define_tristate CONFIG_IP_NF_NAT_PPTP $CONFIG_IP_NF_NAT
-+ fi
-+ fi
-+ if [ "$CONFIG_IP_NF_CT_PROTO_GRE" = "m" ]; then
-+ define_tristate CONFIG_IP_NF_NAT_PROTO_GRE m
-+ else
-+ if [ "$CONFIG_IP_NF_CT_PROTO_GRE" = "y" ]; then
-+ define_tristate CONFIG_IP_NF_NAT_PROTO_GRE $CONFIG_IP_NF_NAT
-+ fi
-+ fi
- if [ "$CONFIG_IP_NF_AMANDA" = "m" ]; then
- define_tristate CONFIG_IP_NF_NAT_AMANDA m
- else
-diff -urN linux-2.4.29-old/net/ipv4/netfilter/ip_conntrack_core.c linux-2.4.29-dev/net/ipv4/netfilter/ip_conntrack_core.c
---- linux-2.4.29-old/net/ipv4/netfilter/ip_conntrack_core.c 2005-04-02 19:04:11.000000000 +0200
-+++ linux-2.4.29-dev/net/ipv4/netfilter/ip_conntrack_core.c 2005-04-02 19:07:18.000000000 +0200
-@@ -142,6 +142,8 @@
- tuple->dst.ip = iph->daddr;
- tuple->dst.protonum = iph->protocol;
-
-+ tuple->src.u.all = tuple->dst.u.all = 0;
-+
- ret = protocol->pkt_to_tuple((u_int32_t *)iph + iph->ihl,
- len - 4*iph->ihl,
- tuple);
-@@ -157,6 +159,8 @@
- inverse->dst.ip = orig->src.ip;
- inverse->dst.protonum = orig->dst.protonum;
-
-+ inverse->src.u.all = inverse->dst.u.all = 0;
-+
- return protocol->invert_tuple(inverse, orig);
- }
-
-@@ -954,8 +958,8 @@
- * so there is no need to use the tuple lock too */
-
- DEBUGP("ip_conntrack_expect_related %p\n", related_to);
-- DEBUGP("tuple: "); DUMP_TUPLE(&expect->tuple);
-- DEBUGP("mask: "); DUMP_TUPLE(&expect->mask);
-+ DEBUGP("tuple: "); DUMP_TUPLE_RAW(&expect->tuple);
-+ DEBUGP("mask: "); DUMP_TUPLE_RAW(&expect->mask);
-
- old = LIST_FIND(&ip_conntrack_expect_list, resent_expect,
- struct ip_conntrack_expect *, &expect->tuple,
-@@ -1072,15 +1076,14 @@
-
- MUST_BE_READ_LOCKED(&ip_conntrack_lock);
- WRITE_LOCK(&ip_conntrack_expect_tuple_lock);
--
- DEBUGP("change_expect:\n");
-- DEBUGP("exp tuple: "); DUMP_TUPLE(&expect->tuple);
-- DEBUGP("exp mask: "); DUMP_TUPLE(&expect->mask);
-- DEBUGP("newtuple: "); DUMP_TUPLE(newtuple);
-+ DEBUGP("exp tuple: "); DUMP_TUPLE_RAW(&expect->tuple);
-+ DEBUGP("exp mask: "); DUMP_TUPLE_RAW(&expect->mask);
-+ DEBUGP("newtuple: "); DUMP_TUPLE_RAW(newtuple);
- if (expect->ct_tuple.dst.protonum == 0) {
- /* Never seen before */
- DEBUGP("change expect: never seen before\n");
-- if (!ip_ct_tuple_equal(&expect->tuple, newtuple)
-+ if (!ip_ct_tuple_mask_cmp(&expect->tuple, newtuple, &expect->mask)
- && LIST_FIND(&ip_conntrack_expect_list, expect_clash,
- struct ip_conntrack_expect *, newtuple, &expect->mask)) {
- /* Force NAT to find an unused tuple */
-diff -urN linux-2.4.29-old/net/ipv4/netfilter/ip_conntrack_pptp.c linux-2.4.29-dev/net/ipv4/netfilter/ip_conntrack_pptp.c
---- linux-2.4.29-old/net/ipv4/netfilter/ip_conntrack_pptp.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.29-dev/net/ipv4/netfilter/ip_conntrack_pptp.c 2005-04-02 19:13:21.000000000 +0200
-@@ -0,0 +1,633 @@
-+/*
-+ * ip_conntrack_pptp.c - Version 1.9
-+ *
-+ * Connection tracking support for PPTP (Point to Point Tunneling Protocol).
-+ * PPTP is a a protocol for creating virtual private networks.
-+ * It is a specification defined by Microsoft and some vendors
-+ * working with Microsoft. PPTP is built on top of a modified
-+ * version of the Internet Generic Routing Encapsulation Protocol.
-+ * GRE is defined in RFC 1701 and RFC 1702. Documentation of
-+ * PPTP can be found in RFC 2637
-+ *
-+ * (C) 2000-2003 by Harald Welte <laforge@gnumonks.org>
-+ *
-+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
-+ *
-+ * Limitations:
-+ * - We blindly assume that control connections are always
-+ * established in PNS->PAC direction. This is a violation
-+ * of RFFC2673
-+ *
-+ * TODO: - finish support for multiple calls within one session
-+ * (needs expect reservations in newnat)
-+ * - testing of incoming PPTP calls
-+ *
-+ * Changes:
-+ * 2002-02-05 - Version 1.3
-+ * - Call ip_conntrack_unexpect_related() from
-+ * pptp_timeout_related() to destroy expectations in case
-+ * CALL_DISCONNECT_NOTIFY or tcp fin packet was seen
-+ * (Philip Craig <philipc@snapgear.com>)
-+ * - Add Version information at module loadtime
-+ * 2002-02-10 - Version 1.6
-+ * - move to C99 style initializers
-+ * - remove second expectation if first arrives
-+ *
-+ */
-+
-+#include <linux/config.h>
-+#include <linux/module.h>
-+#include <linux/netfilter.h>
-+#include <linux/ip.h>
-+#include <net/checksum.h>
-+#include <net/tcp.h>
-+
-+#include <linux/netfilter_ipv4/lockhelp.h>
-+#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-+#include <linux/netfilter_ipv4/ip_conntrack_proto_gre.h>
-+#include <linux/netfilter_ipv4/ip_conntrack_pptp.h>
-+
-+#define IP_CT_PPTP_VERSION "1.9"
-+
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
-+MODULE_DESCRIPTION("Netfilter connection tracking helper module for PPTP");
-+
-+DECLARE_LOCK(ip_pptp_lock);
-+
-+#if 0
-+#include "ip_conntrack_pptp_priv.h"
-+#define DEBUGP(format, args...) printk(KERN_DEBUG __FILE__ ":" __FUNCTION__ \
-+ ": " format, ## args)
-+#else
-+#define DEBUGP(format, args...)
-+#endif
-+
-+#define SECS *HZ
-+#define MINS * 60 SECS
-+#define HOURS * 60 MINS
-+#define DAYS * 24 HOURS
-+
-+#define PPTP_GRE_TIMEOUT (10 MINS)
-+#define PPTP_GRE_STREAM_TIMEOUT (5 DAYS)
-+
-+static int pptp_expectfn(struct ip_conntrack *ct)
-+{
-+ struct ip_conntrack *master;
-+ struct ip_conntrack_expect *exp;
-+
-+ DEBUGP("increasing timeouts\n");
-+ /* increase timeout of GRE data channel conntrack entry */
-+ ct->proto.gre.timeout = PPTP_GRE_TIMEOUT;
-+ ct->proto.gre.stream_timeout = PPTP_GRE_STREAM_TIMEOUT;
-+
-+ master = master_ct(ct);
-+ if (!master) {
-+ DEBUGP(" no master!!!\n");
-+ return 0;
-+ }
-+
-+ exp = ct->master;
-+ if (!exp) {
-+ DEBUGP("no expectation!!\n");
-+ return 0;
-+ }
-+
-+ DEBUGP("completing tuples with ct info\n");
-+ /* we can do this, since we're unconfirmed */
-+ if (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u.gre.key ==
-+ htonl(master->help.ct_pptp_info.pac_call_id)) {
-+ /* assume PNS->PAC */
-+ ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u.gre.key =
-+ htonl(master->help.ct_pptp_info.pns_call_id);
-+ ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u.gre.key =
-+ htonl(master->help.ct_pptp_info.pns_call_id);
-+ } else {
-+ /* assume PAC->PNS */
-+ ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u.gre.key =
-+ htonl(master->help.ct_pptp_info.pac_call_id);
-+ ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u.gre.key =
-+ htonl(master->help.ct_pptp_info.pac_call_id);
-+ }
-+
-+ /* delete other expectation */
-+ if (exp->expected_list.next != &exp->expected_list) {
-+ struct ip_conntrack_expect *other_exp;
-+ struct list_head *cur_item, *next;
-+
-+ for (cur_item = master->sibling_list.next;
-+ cur_item != &master->sibling_list; cur_item = next) {
-+ next = cur_item->next;
-+ other_exp = list_entry(cur_item,
-+ struct ip_conntrack_expect,
-+ expected_list);
-+ /* remove only if occurred at same sequence number */
-+ if (other_exp != exp && other_exp->seq == exp->seq) {
-+ DEBUGP("unexpecting other direction\n");
-+ ip_ct_gre_keymap_destroy(other_exp);
-+ ip_conntrack_unexpect_related(other_exp);
-+ }
-+ }
-+ }
-+
-+ return 0;
-+}
-+
-+/* timeout GRE data connections */
-+static int pptp_timeout_related(struct ip_conntrack *ct)
-+{
-+ struct list_head *cur_item, *next;
-+ struct ip_conntrack_expect *exp;
-+
-+ /* FIXME: do we have to lock something ? */
-+ for (cur_item = ct->sibling_list.next;
-+ cur_item != &ct->sibling_list; cur_item = next) {
-+ next = cur_item->next;
-+ exp = list_entry(cur_item, struct ip_conntrack_expect,
-+ expected_list);
-+
-+ ip_ct_gre_keymap_destroy(exp);
-+ if (!exp->sibling) {
-+ ip_conntrack_unexpect_related(exp);
-+ continue;
-+ }
-+
-+ DEBUGP("setting timeout of conntrack %p to 0\n",
-+ exp->sibling);
-+ exp->sibling->proto.gre.timeout = 0;
-+ exp->sibling->proto.gre.stream_timeout = 0;
-+ ip_ct_refresh(exp->sibling, 0);
-+ }
-+
-+ return 0;
-+}
-+
-+/* expect GRE connections (PNS->PAC and PAC->PNS direction) */
-+static inline int
-+exp_gre(struct ip_conntrack *master,
-+ u_int32_t seq,
-+ u_int16_t callid,
-+ u_int16_t peer_callid)
-+{
-+ struct ip_conntrack_expect exp;
-+ struct ip_conntrack_tuple inv_tuple;
-+
-+ memset(&exp, 0, sizeof(exp));
-+ /* tuple in original direction, PNS->PAC */
-+ exp.tuple.src.ip = master->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip;
-+ exp.tuple.src.u.gre.key = htonl(ntohs(peer_callid));
-+ exp.tuple.dst.ip = master->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip;
-+ exp.tuple.dst.u.gre.key = htonl(ntohs(callid));
-+ exp.tuple.dst.protonum = IPPROTO_GRE;
-+
-+ exp.mask.src.ip = 0xffffffff;
-+ exp.mask.src.u.all = 0;
-+ exp.mask.dst.u.all = 0;
-+ exp.mask.dst.u.gre.key = 0xffffffff;
-+ exp.mask.dst.ip = 0xffffffff;
-+ exp.mask.dst.protonum = 0xffff;
-+
-+ exp.seq = seq;
-+ exp.expectfn = pptp_expectfn;
-+
-+ exp.help.exp_pptp_info.pac_call_id = ntohs(callid);
-+ exp.help.exp_pptp_info.pns_call_id = ntohs(peer_callid);
-+
-+ DEBUGP("calling expect_related ");
-+ DUMP_TUPLE_RAW(&exp.tuple);
-+
-+ /* Add GRE keymap entries */
-+ if (ip_ct_gre_keymap_add(&exp, &exp.tuple, 0) != 0)
-+ return 1;
-+
-+ invert_tuplepr(&inv_tuple, &exp.tuple);
-+ if (ip_ct_gre_keymap_add(&exp, &inv_tuple, 1) != 0) {
-+ ip_ct_gre_keymap_destroy(&exp);
-+ return 1;
-+ }
-+
-+ if (ip_conntrack_expect_related(master, &exp) != 0) {
-+ ip_ct_gre_keymap_destroy(&exp);
-+ DEBUGP("cannot expect_related()\n");
-+ return 1;
-+ }
-+
-+ /* tuple in reply direction, PAC->PNS */
-+ exp.tuple.src.ip = master->tuplehash[IP_CT_DIR_REPLY].tuple.src.ip;
-+ exp.tuple.src.u.gre.key = htonl(ntohs(callid));
-+ exp.tuple.dst.ip = master->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip;
-+ exp.tuple.dst.u.gre.key = htonl(ntohs(peer_callid));
-+
-+ DEBUGP("calling expect_related ");
-+ DUMP_TUPLE_RAW(&exp.tuple);
-+
-+ /* Add GRE keymap entries */
-+ ip_ct_gre_keymap_add(&exp, &exp.tuple, 0);
-+ invert_tuplepr(&inv_tuple, &exp.tuple);
-+ ip_ct_gre_keymap_add(&exp, &inv_tuple, 1);
-+ /* FIXME: cannot handle error correctly, since we need to free
-+ * the above keymap :( */
-+
-+ if (ip_conntrack_expect_related(master, &exp) != 0) {
-+ /* free the second pair of keypmaps */
-+ ip_ct_gre_keymap_destroy(&exp);
-+ DEBUGP("cannot expect_related():\n");
-+ return 1;
-+ }
-+
-+ return 0;
-+}
-+
-+static inline int
-+pptp_inbound_pkt(struct tcphdr *tcph,
-+ struct pptp_pkt_hdr *pptph,
-+ size_t datalen,
-+ struct ip_conntrack *ct,
-+ enum ip_conntrack_info ctinfo)
-+{
-+ struct PptpControlHeader *ctlh;
-+ union pptp_ctrl_union pptpReq;
-+
-+ struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info;
-+ u_int16_t msg, *cid, *pcid;
-+ u_int32_t seq;
-+
-+ ctlh = (struct PptpControlHeader *)
-+ ((char *) pptph + sizeof(struct pptp_pkt_hdr));
-+ pptpReq.rawreq = (void *)
-+ ((char *) ctlh + sizeof(struct PptpControlHeader));
-+
-+ msg = ntohs(ctlh->messageType);
-+ DEBUGP("inbound control message %s\n", strMName[msg]);
-+
-+ switch (msg) {
-+ case PPTP_START_SESSION_REPLY:
-+ /* server confirms new control session */
-+ if (info->sstate < PPTP_SESSION_REQUESTED) {
-+ DEBUGP("%s without START_SESS_REQUEST\n",
-+ strMName[msg]);
-+ break;
-+ }
-+ if (pptpReq.srep->resultCode == PPTP_START_OK)
-+ info->sstate = PPTP_SESSION_CONFIRMED;
-+ else
-+ info->sstate = PPTP_SESSION_ERROR;
-+ break;
-+
-+ case PPTP_STOP_SESSION_REPLY:
-+ /* server confirms end of control session */
-+ if (info->sstate > PPTP_SESSION_STOPREQ) {
-+ DEBUGP("%s without STOP_SESS_REQUEST\n",
-+ strMName[msg]);
-+ break;
-+ }
-+ if (pptpReq.strep->resultCode == PPTP_STOP_OK)
-+ info->sstate = PPTP_SESSION_NONE;
-+ else
-+ info->sstate = PPTP_SESSION_ERROR;
-+ break;
-+
-+ case PPTP_OUT_CALL_REPLY:
-+ /* server accepted call, we now expect GRE frames */
-+ if (info->sstate != PPTP_SESSION_CONFIRMED) {
-+ DEBUGP("%s but no session\n", strMName[msg]);
-+ break;
-+ }
-+ if (info->cstate != PPTP_CALL_OUT_REQ &&
-+ info->cstate != PPTP_CALL_OUT_CONF) {
-+ DEBUGP("%s without OUTCALL_REQ\n", strMName[msg]);
-+ break;
-+ }
-+ if (pptpReq.ocack->resultCode != PPTP_OUTCALL_CONNECT) {
-+ info->cstate = PPTP_CALL_NONE;
-+ break;
-+ }
-+
-+ cid = &pptpReq.ocack->callID;
-+ pcid = &pptpReq.ocack->peersCallID;
-+
-+ info->pac_call_id = ntohs(*cid);
-+
-+ if (htons(info->pns_call_id) != *pcid) {
-+ DEBUGP("%s for unknown callid %u\n",
-+ strMName[msg], ntohs(*pcid));
-+ break;
-+ }
-+
-+ DEBUGP("%s, CID=%X, PCID=%X\n", strMName[msg],
-+ ntohs(*cid), ntohs(*pcid));
-+
-+ info->cstate = PPTP_CALL_OUT_CONF;
-+
-+ seq = ntohl(tcph->seq) + ((void *)pcid - (void *)pptph);
-+ if (exp_gre(ct, seq, *cid, *pcid) != 0)
-+ printk("ip_conntrack_pptp: error during exp_gre\n");
-+ break;
-+
-+ case PPTP_IN_CALL_REQUEST:
-+ /* server tells us about incoming call request */
-+ if (info->sstate != PPTP_SESSION_CONFIRMED) {
-+ DEBUGP("%s but no session\n", strMName[msg]);
-+ break;
-+ }
-+ pcid = &pptpReq.icack->peersCallID;
-+ DEBUGP("%s, PCID=%X\n", strMName[msg], ntohs(*pcid));
-+ info->cstate = PPTP_CALL_IN_REQ;
-+ info->pac_call_id= ntohs(*pcid);
-+ break;
-+
-+ case PPTP_IN_CALL_CONNECT:
-+ /* server tells us about incoming call established */
-+ if (info->sstate != PPTP_SESSION_CONFIRMED) {
-+ DEBUGP("%s but no session\n", strMName[msg]);
-+ break;
-+ }
-+ if (info->sstate != PPTP_CALL_IN_REP
-+ && info->sstate != PPTP_CALL_IN_CONF) {
-+ DEBUGP("%s but never sent IN_CALL_REPLY\n",
-+ strMName[msg]);
-+ break;
-+ }
-+
-+ pcid = &pptpReq.iccon->peersCallID;
-+ cid = &info->pac_call_id;
-+
-+ if (info->pns_call_id != ntohs(*pcid)) {
-+ DEBUGP("%s for unknown CallID %u\n",
-+ strMName[msg], ntohs(*cid));
-+ break;
-+ }
-+
-+ DEBUGP("%s, PCID=%X\n", strMName[msg], ntohs(*pcid));
-+ info->cstate = PPTP_CALL_IN_CONF;
-+
-+ /* we expect a GRE connection from PAC to PNS */
-+ seq = ntohl(tcph->seq) + ((void *)pcid - (void *)pptph);
-+ if (exp_gre(ct, seq, *cid, *pcid) != 0)
-+ printk("ip_conntrack_pptp: error during exp_gre\n");
-+
-+ break;
-+
-+ case PPTP_CALL_DISCONNECT_NOTIFY:
-+ /* server confirms disconnect */
-+ cid = &pptpReq.disc->callID;
-+ DEBUGP("%s, CID=%X\n", strMName[msg], ntohs(*cid));
-+ info->cstate = PPTP_CALL_NONE;
-+
-+ /* untrack this call id, unexpect GRE packets */
-+ pptp_timeout_related(ct);
-+ break;
-+
-+ case PPTP_WAN_ERROR_NOTIFY:
-+ break;
-+
-+ case PPTP_ECHO_REQUEST:
-+ case PPTP_ECHO_REPLY:
-+ /* I don't have to explain these ;) */
-+ break;
-+ default:
-+ DEBUGP("invalid %s (TY=%d)\n", (msg <= PPTP_MSG_MAX)
-+ ? strMName[msg]:strMName[0], msg);
-+ break;
-+ }
-+
-+ return NF_ACCEPT;
-+
-+}
-+
-+static inline int
-+pptp_outbound_pkt(struct tcphdr *tcph,
-+ struct pptp_pkt_hdr *pptph,
-+ size_t datalen,
-+ struct ip_conntrack *ct,
-+ enum ip_conntrack_info ctinfo)
-+{
-+ struct PptpControlHeader *ctlh;
-+ union pptp_ctrl_union pptpReq;
-+ struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info;
-+ u_int16_t msg, *cid, *pcid;
-+
-+ ctlh = (struct PptpControlHeader *) ((void *) pptph + sizeof(*pptph));
-+ pptpReq.rawreq = (void *) ((void *) ctlh + sizeof(*ctlh));
-+
-+ msg = ntohs(ctlh->messageType);
-+ DEBUGP("outbound control message %s\n", strMName[msg]);
-+
-+ switch (msg) {
-+ case PPTP_START_SESSION_REQUEST:
-+ /* client requests for new control session */
-+ if (info->sstate != PPTP_SESSION_NONE) {
-+ DEBUGP("%s but we already have one",
-+ strMName[msg]);
-+ }
-+ info->sstate = PPTP_SESSION_REQUESTED;
-+ break;
-+ case PPTP_STOP_SESSION_REQUEST:
-+ /* client requests end of control session */
-+ info->sstate = PPTP_SESSION_STOPREQ;
-+ break;
-+
-+ case PPTP_OUT_CALL_REQUEST:
-+ /* client initiating connection to server */
-+ if (info->sstate != PPTP_SESSION_CONFIRMED) {
-+ DEBUGP("%s but no session\n",
-+ strMName[msg]);
-+ break;
-+ }
-+ info->cstate = PPTP_CALL_OUT_REQ;
-+ /* track PNS call id */
-+ cid = &pptpReq.ocreq->callID;
-+ DEBUGP("%s, CID=%X\n", strMName[msg], ntohs(*cid));
-+ info->pns_call_id = ntohs(*cid);
-+ break;
-+ case PPTP_IN_CALL_REPLY:
-+ /* client answers incoming call */
-+ if (info->cstate != PPTP_CALL_IN_REQ
-+ && info->cstate != PPTP_CALL_IN_REP) {
-+ DEBUGP("%s without incall_req\n",
-+ strMName[msg]);
-+ break;
-+ }
-+ if (pptpReq.icack->resultCode != PPTP_INCALL_ACCEPT) {
-+ info->cstate = PPTP_CALL_NONE;
-+ break;
-+ }
-+ pcid = &pptpReq.icack->peersCallID;
-+ if (info->pac_call_id != ntohs(*pcid)) {
-+ DEBUGP("%s for unknown call %u\n",
-+ strMName[msg], ntohs(*pcid));
-+ break;
-+ }
-+ DEBUGP("%s, CID=%X\n", strMName[msg], ntohs(*pcid));
-+ /* part two of the three-way handshake */
-+ info->cstate = PPTP_CALL_IN_REP;
-+ info->pns_call_id = ntohs(pptpReq.icack->callID);
-+ break;
-+
-+ case PPTP_CALL_CLEAR_REQUEST:
-+ /* client requests hangup of call */
-+ if (info->sstate != PPTP_SESSION_CONFIRMED) {
-+ DEBUGP("CLEAR_CALL but no session\n");
-+ break;
-+ }
-+ /* FUTURE: iterate over all calls and check if
-+ * call ID is valid. We don't do this without newnat,
-+ * because we only know about last call */
-+ info->cstate = PPTP_CALL_CLEAR_REQ;
-+ break;
-+ case PPTP_SET_LINK_INFO:
-+ break;
-+ case PPTP_ECHO_REQUEST:
-+ case PPTP_ECHO_REPLY:
-+ /* I don't have to explain these ;) */
-+ break;
-+ default:
-+ DEBUGP("invalid %s (TY=%d)\n", (msg <= PPTP_MSG_MAX)?
-+ strMName[msg]:strMName[0], msg);
-+ /* unknown: no need to create GRE masq table entry */
-+ break;
-+ }
-+
-+ return NF_ACCEPT;
-+}
-+
-+
-+/* track caller id inside control connection, call expect_related */
-+static int
-+conntrack_pptp_help(const struct iphdr *iph, size_t len,
-+ struct ip_conntrack *ct, enum ip_conntrack_info ctinfo)
-+
-+{
-+ struct pptp_pkt_hdr *pptph;
-+
-+ struct tcphdr *tcph = (void *) iph + iph->ihl * 4;
-+ u_int32_t tcplen = len - iph->ihl * 4;
-+ u_int32_t datalen = tcplen - tcph->doff * 4;
-+ void *datalimit;
-+ int dir = CTINFO2DIR(ctinfo);
-+ struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info;
-+
-+ int oldsstate, oldcstate;
-+ int ret;
-+
-+ /* don't do any tracking before tcp handshake complete */
-+ if (ctinfo != IP_CT_ESTABLISHED
-+ && ctinfo != IP_CT_ESTABLISHED+IP_CT_IS_REPLY) {
-+ DEBUGP("ctinfo = %u, skipping\n", ctinfo);
-+ return NF_ACCEPT;
-+ }
-+
-+ /* not a complete TCP header? */
-+ if (tcplen < sizeof(struct tcphdr) || tcplen < tcph->doff * 4) {
-+ DEBUGP("tcplen = %u\n", tcplen);
-+ return NF_ACCEPT;
-+ }
-+
-+ /* checksum invalid? */
-+ if (tcp_v4_check(tcph, tcplen, iph->saddr, iph->daddr,
-+ csum_partial((char *) tcph, tcplen, 0))) {
-+ printk(KERN_NOTICE __FILE__ ": bad csum\n");
-+ /* W2K PPTP server sends TCP packets with wrong checksum :(( */
-+ //return NF_ACCEPT;
-+ }
-+
-+ if (tcph->fin || tcph->rst) {
-+ DEBUGP("RST/FIN received, timeouting GRE\n");
-+ /* can't do this after real newnat */
-+ info->cstate = PPTP_CALL_NONE;
-+
-+ /* untrack this call id, unexpect GRE packets */
-+ pptp_timeout_related(ct);
-+ }
-+
-+
-+ pptph = (struct pptp_pkt_hdr *) ((void *) tcph + tcph->doff * 4);
-+ datalimit = (void *) pptph + datalen;
-+
-+ /* not a full pptp packet header? */
-+ if ((void *) pptph+sizeof(*pptph) >= datalimit) {
-+ DEBUGP("no full PPTP header, can't track\n");
-+ return NF_ACCEPT;
-+ }
-+
-+ /* if it's not a control message we can't do anything with it */
-+ if (ntohs(pptph->packetType) != PPTP_PACKET_CONTROL ||
-+ ntohl(pptph->magicCookie) != PPTP_MAGIC_COOKIE) {
-+ DEBUGP("not a control packet\n");
-+ return NF_ACCEPT;
-+ }
-+
-+ oldsstate = info->sstate;
-+ oldcstate = info->cstate;
-+
-+ LOCK_BH(&ip_pptp_lock);
-+
-+ /* FIXME: We just blindly assume that the control connection is always
-+ * established from PNS->PAC. However, RFC makes no guarantee */
-+ if (dir == IP_CT_DIR_ORIGINAL)
-+ /* client -> server (PNS -> PAC) */
-+ ret = pptp_outbound_pkt(tcph, pptph, datalen, ct, ctinfo);
-+ else
-+ /* server -> client (PAC -> PNS) */
-+ ret = pptp_inbound_pkt(tcph, pptph, datalen, ct, ctinfo);
-+ DEBUGP("sstate: %d->%d, cstate: %d->%d\n",
-+ oldsstate, info->sstate, oldcstate, info->cstate);
-+ UNLOCK_BH(&ip_pptp_lock);
-+
-+ return ret;
-+}
-+
-+/* control protocol helper */
-+static struct ip_conntrack_helper pptp = {
-+ .list = { NULL, NULL },
-+ .name = "pptp",
-+ .flags = IP_CT_HELPER_F_REUSE_EXPECT,
-+ .me = THIS_MODULE,
-+ .max_expected = 2,
-+ .timeout = 0,
-+ .tuple = { .src = { .ip = 0,
-+ .u = { .tcp = { .port =
-+ __constant_htons(PPTP_CONTROL_PORT) } }
-+ },
-+ .dst = { .ip = 0,
-+ .u = { .all = 0 },
-+ .protonum = IPPROTO_TCP
-+ }
-+ },
-+ .mask = { .src = { .ip = 0,
-+ .u = { .tcp = { .port = 0xffff } }
-+ },
-+ .dst = { .ip = 0,
-+ .u = { .all = 0 },
-+ .protonum = 0xffff
-+ }
-+ },
-+ .help = conntrack_pptp_help
-+};
-+
-+/* ip_conntrack_pptp initialization */
-+static int __init init(void)
-+{
-+ int retcode;
-+
-+ DEBUGP(__FILE__ ": registering helper\n");
-+ if ((retcode = ip_conntrack_helper_register(&pptp))) {
-+ printk(KERN_ERR "Unable to register conntrack application "
-+ "helper for pptp: %d\n", retcode);
-+ return -EIO;
-+ }
-+
-+ printk("ip_conntrack_pptp version %s loaded\n", IP_CT_PPTP_VERSION);
-+ return 0;
-+}
-+
-+static void __exit fini(void)
-+{
-+ ip_conntrack_helper_unregister(&pptp);
-+ printk("ip_conntrack_pptp version %s unloaded\n", IP_CT_PPTP_VERSION);
-+}
-+
-+module_init(init);
-+module_exit(fini);
-+
-+EXPORT_SYMBOL(ip_pptp_lock);
-diff -urN linux-2.4.29-old/net/ipv4/netfilter/ip_conntrack_pptp_priv.h linux-2.4.29-dev/net/ipv4/netfilter/ip_conntrack_pptp_priv.h
---- linux-2.4.29-old/net/ipv4/netfilter/ip_conntrack_pptp_priv.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.29-dev/net/ipv4/netfilter/ip_conntrack_pptp_priv.h 2005-04-02 19:14:10.000000000 +0200
-@@ -0,0 +1,24 @@
-+#ifndef _IP_CT_PPTP_PRIV_H
-+#define _IP_CT_PPTP_PRIV_H
-+
-+/* PptpControlMessageType names */
-+static const char *strMName[] = {
-+ "UNKNOWN_MESSAGE",
-+ "START_SESSION_REQUEST",
-+ "START_SESSION_REPLY",
-+ "STOP_SESSION_REQUEST",
-+ "STOP_SESSION_REPLY",
-+ "ECHO_REQUEST",
-+ "ECHO_REPLY",
-+ "OUT_CALL_REQUEST",
-+ "OUT_CALL_REPLY",
-+ "IN_CALL_REQUEST",
-+ "IN_CALL_REPLY",
-+ "IN_CALL_CONNECT",
-+ "CALL_CLEAR_REQUEST",
-+ "CALL_DISCONNECT_NOTIFY",
-+ "WAN_ERROR_NOTIFY",
-+ "SET_LINK_INFO"
-+};
-+
-+#endif
-diff -urN linux-2.4.29-old/net/ipv4/netfilter/ip_conntrack_proto_gre.c linux-2.4.29-dev/net/ipv4/netfilter/ip_conntrack_proto_gre.c
---- linux-2.4.29-old/net/ipv4/netfilter/ip_conntrack_proto_gre.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.29-dev/net/ipv4/netfilter/ip_conntrack_proto_gre.c 2005-04-02 19:14:31.000000000 +0200
-@@ -0,0 +1,333 @@
-+/*
-+ * ip_conntrack_proto_gre.c - Version 1.2
-+ *
-+ * Connection tracking protocol helper module for GRE.
-+ *
-+ * GRE is a generic encapsulation protocol, which is generally not very
-+ * suited for NAT, as it has no protocol-specific part as port numbers.
-+ *
-+ * It has an optional key field, which may help us distinguishing two
-+ * connections between the same two hosts.
-+ *
-+ * GRE is defined in RFC 1701 and RFC 1702, as well as RFC 2784
-+ *
-+ * PPTP is built on top of a modified version of GRE, and has a mandatory
-+ * field called "CallID", which serves us for the same purpose as the key
-+ * field in plain GRE.
-+ *
-+ * Documentation about PPTP can be found in RFC 2637
-+ *
-+ * (C) 2000-2003 by Harald Welte <laforge@gnumonks.org>
-+ *
-+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
-+ *
-+ */
-+
-+#include <linux/config.h>
-+#include <linux/module.h>
-+#include <linux/types.h>
-+#include <linux/timer.h>
-+#include <linux/netfilter.h>
-+#include <linux/ip.h>
-+#include <linux/in.h>
-+#include <linux/list.h>
-+
-+#include <linux/netfilter_ipv4/lockhelp.h>
-+
-+DECLARE_RWLOCK(ip_ct_gre_lock);
-+#define ASSERT_READ_LOCK(x) MUST_BE_READ_LOCKED(&ip_ct_gre_lock)
-+#define ASSERT_WRITE_LOCK(x) MUST_BE_WRITE_LOCKED(&ip_ct_gre_lock)
-+
-+#include <linux/netfilter_ipv4/listhelp.h>
-+#include <linux/netfilter_ipv4/ip_conntrack_protocol.h>
-+#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-+#include <linux/netfilter_ipv4/ip_conntrack_core.h>
-+
-+#include <linux/netfilter_ipv4/ip_conntrack_proto_gre.h>
-+#include <linux/netfilter_ipv4/ip_conntrack_pptp.h>
-+
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
-+MODULE_DESCRIPTION("netfilter connection tracking protocol helper for GRE");
-+
-+/* shamelessly stolen from ip_conntrack_proto_udp.c */
-+#define GRE_TIMEOUT (30*HZ)
-+#define GRE_STREAM_TIMEOUT (180*HZ)
-+
-+#if 0
-+#define DEBUGP(format, args...) printk(KERN_DEBUG __FILE__ ":" __FUNCTION__ \
-+ ": " format, ## args)
-+#define DUMP_TUPLE_GRE(x) printk("%u.%u.%u.%u:0x%x -> %u.%u.%u.%u:0x%x:%u:0x%x\n", \
-+ NIPQUAD((x)->src.ip), ntohl((x)->src.u.gre.key), \
-+ NIPQUAD((x)->dst.ip), ntohl((x)->dst.u.gre.key))
-+#else
-+#define DEBUGP(x, args...)
-+#define DUMP_TUPLE_GRE(x)
-+#endif
-+
-+/* GRE KEYMAP HANDLING FUNCTIONS */
-+static LIST_HEAD(gre_keymap_list);
-+
-+static inline int gre_key_cmpfn(const struct ip_ct_gre_keymap *km,
-+ const struct ip_conntrack_tuple *t)
-+{
-+ return ((km->tuple.src.ip == t->src.ip) &&
-+ (km->tuple.dst.ip == t->dst.ip) &&
-+ (km->tuple.dst.protonum == t->dst.protonum) &&
-+ (km->tuple.dst.u.all == t->dst.u.all));
-+}
-+
-+/* look up the source key for a given tuple */
-+static u_int32_t gre_keymap_lookup(struct ip_conntrack_tuple *t)
-+{
-+ struct ip_ct_gre_keymap *km;
-+ u_int32_t key;
-+
-+ READ_LOCK(&ip_ct_gre_lock);
-+ km = LIST_FIND(&gre_keymap_list, gre_key_cmpfn,
-+ struct ip_ct_gre_keymap *, t);
-+ if (!km) {
-+ READ_UNLOCK(&ip_ct_gre_lock);
-+ return 0;
-+ }
-+
-+ key = km->tuple.src.u.gre.key;
-+ READ_UNLOCK(&ip_ct_gre_lock);
-+
-+ return key;
-+}
-+
-+/* add a single keymap entry, associate with specified expect */
-+int ip_ct_gre_keymap_add(struct ip_conntrack_expect *exp,
-+ struct ip_conntrack_tuple *t, int reply)
-+{
-+ struct ip_ct_gre_keymap *km;
-+
-+ km = kmalloc(sizeof(*km), GFP_ATOMIC);
-+ if (!km)
-+ return -1;
-+
-+ /* initializing list head should be sufficient */
-+ memset(km, 0, sizeof(*km));
-+
-+ memcpy(&km->tuple, t, sizeof(*t));
-+
-+ if (!reply)
-+ exp->proto.gre.keymap_orig = km;
-+ else
-+ exp->proto.gre.keymap_reply = km;
-+
-+ DEBUGP("adding new entry %p: ", km);
-+ DUMP_TUPLE_GRE(&km->tuple);
-+
-+ WRITE_LOCK(&ip_ct_gre_lock);
-+ list_append(&gre_keymap_list, km);
-+ WRITE_UNLOCK(&ip_ct_gre_lock);
-+
-+ return 0;
-+}
-+
-+/* change the tuple of a keymap entry (used by nat helper) */
-+void ip_ct_gre_keymap_change(struct ip_ct_gre_keymap *km,
-+ struct ip_conntrack_tuple *t)
-+{
-+ DEBUGP("changing entry %p to: ", km);
-+ DUMP_TUPLE_GRE(t);
-+
-+ WRITE_LOCK(&ip_ct_gre_lock);
-+ memcpy(&km->tuple, t, sizeof(km->tuple));
-+ WRITE_UNLOCK(&ip_ct_gre_lock);
-+}
-+
-+/* destroy the keymap entries associated with specified expect */
-+void ip_ct_gre_keymap_destroy(struct ip_conntrack_expect *exp)
-+{
-+ DEBUGP("entering for exp %p\n", exp);
-+ WRITE_LOCK(&ip_ct_gre_lock);
-+ if (exp->proto.gre.keymap_orig) {
-+ DEBUGP("removing %p from list\n", exp->proto.gre.keymap_orig);
-+ list_del(&exp->proto.gre.keymap_orig->list);
-+ kfree(exp->proto.gre.keymap_orig);
-+ exp->proto.gre.keymap_orig = NULL;
-+ }
-+ if (exp->proto.gre.keymap_reply) {
-+ DEBUGP("removing %p from list\n", exp->proto.gre.keymap_reply);
-+ list_del(&exp->proto.gre.keymap_reply->list);
-+ kfree(exp->proto.gre.keymap_reply);
-+ exp->proto.gre.keymap_reply = NULL;
-+ }
-+ WRITE_UNLOCK(&ip_ct_gre_lock);
-+}
-+
-+
-+/* PUBLIC CONNTRACK PROTO HELPER FUNCTIONS */
-+
-+/* invert gre part of tuple */
-+static int gre_invert_tuple(struct ip_conntrack_tuple *tuple,
-+ const struct ip_conntrack_tuple *orig)
-+{
-+ tuple->dst.u.gre.key = orig->src.u.gre.key;
-+ tuple->src.u.gre.key = orig->dst.u.gre.key;
-+
-+ return 1;
-+}
-+
-+/* gre hdr info to tuple */
-+static int gre_pkt_to_tuple(const void *datah, size_t datalen,
-+ struct ip_conntrack_tuple *tuple)
-+{
-+ struct gre_hdr *grehdr = (struct gre_hdr *) datah;
-+ struct gre_hdr_pptp *pgrehdr = (struct gre_hdr_pptp *) datah;
-+ u_int32_t srckey;
-+
-+ /* core guarantees 8 protocol bytes, no need for size check */
-+
-+ switch (grehdr->version) {
-+ case GRE_VERSION_1701:
-+ if (!grehdr->key) {
-+ DEBUGP("Can't track GRE without key\n");
-+ return 0;
-+ }
-+ tuple->dst.u.gre.key = *(gre_key(grehdr));
-+ break;
-+
-+ case GRE_VERSION_PPTP:
-+ if (ntohs(grehdr->protocol) != GRE_PROTOCOL_PPTP) {
-+ DEBUGP("GRE_VERSION_PPTP but unknown proto\n");
-+ return 0;
-+ }
-+ tuple->dst.u.gre.key = htonl(ntohs(pgrehdr->call_id));
-+ break;
-+
-+ default:
-+ printk(KERN_WARNING "unknown GRE version %hu\n",
-+ grehdr->version);
-+ return 0;
-+ }
-+
-+ srckey = gre_keymap_lookup(tuple);
-+
-+#if 0
-+ DEBUGP("found src key %x for tuple ", ntohl(srckey));
-+ DUMP_TUPLE_GRE(tuple);
-+#endif
-+ tuple->src.u.gre.key = srckey;
-+
-+ return 1;
-+}
-+
-+/* print gre part of tuple */
-+static unsigned int gre_print_tuple(char *buffer,
-+ const struct ip_conntrack_tuple *tuple)
-+{
-+ return sprintf(buffer, "srckey=0x%x dstkey=0x%x ",
-+ ntohl(tuple->src.u.gre.key),
-+ ntohl(tuple->dst.u.gre.key));
-+}
-+
-+/* print private data for conntrack */
-+static unsigned int gre_print_conntrack(char *buffer,
-+ const struct ip_conntrack *ct)
-+{
-+ return sprintf(buffer, "timeout=%u, stream_timeout=%u ",
-+ (ct->proto.gre.timeout / HZ),
-+ (ct->proto.gre.stream_timeout / HZ));
-+}
-+
-+/* Returns verdict for packet, and may modify conntrack */
-+static int gre_packet(struct ip_conntrack *ct,
-+ struct iphdr *iph, size_t len,
-+ enum ip_conntrack_info conntrackinfo)
-+{
-+ /* If we've seen traffic both ways, this is a GRE connection.
-+ * Extend timeout. */
-+ if (ct->status & IPS_SEEN_REPLY) {
-+ ip_ct_refresh(ct, ct->proto.gre.stream_timeout);
-+ /* Also, more likely to be important, and not a probe. */
-+ set_bit(IPS_ASSURED_BIT, &ct->status);
-+ } else
-+ ip_ct_refresh(ct, ct->proto.gre.timeout);
-+
-+ return NF_ACCEPT;
-+}
-+
-+/* Called when a new connection for this protocol found. */
-+static int gre_new(struct ip_conntrack *ct,
-+ struct iphdr *iph, size_t len)
-+{
-+ DEBUGP(": ");
-+ DUMP_TUPLE_GRE(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
-+
-+ /* initialize to sane value. Ideally a conntrack helper
-+ * (e.g. in case of pptp) is increasing them */
-+ ct->proto.gre.stream_timeout = GRE_STREAM_TIMEOUT;
-+ ct->proto.gre.timeout = GRE_TIMEOUT;
-+
-+ return 1;
-+}
-+
-+/* Called when a conntrack entry has already been removed from the hashes
-+ * and is about to be deleted from memory */
-+static void gre_destroy(struct ip_conntrack *ct)
-+{
-+ struct ip_conntrack_expect *master = ct->master;
-+
-+ DEBUGP(" entering\n");
-+
-+ if (!master) {
-+ DEBUGP("no master exp for ct %p\n", ct);
-+ return;
-+ }
-+
-+ ip_ct_gre_keymap_destroy(master);
-+}
-+
-+/* protocol helper struct */
-+static struct ip_conntrack_protocol gre = { { NULL, NULL }, IPPROTO_GRE,
-+ "gre",
-+ gre_pkt_to_tuple,
-+ gre_invert_tuple,
-+ gre_print_tuple,
-+ gre_print_conntrack,
-+ gre_packet,
-+ gre_new,
-+ gre_destroy,
-+ NULL,
-+ THIS_MODULE };
-+
-+/* ip_conntrack_proto_gre initialization */
-+static int __init init(void)
-+{
-+ int retcode;
-+
-+ if ((retcode = ip_conntrack_protocol_register(&gre))) {
-+ printk(KERN_ERR "Unable to register conntrack protocol "
-+ "helper for gre: %d\n", retcode);
-+ return -EIO;
-+ }
-+
-+ return 0;
-+}
-+
-+static void __exit fini(void)
-+{
-+ struct list_head *pos, *n;
-+
-+ /* delete all keymap entries */
-+ WRITE_LOCK(&ip_ct_gre_lock);
-+ list_for_each_safe(pos, n, &gre_keymap_list) {
-+ DEBUGP("deleting keymap %p at module unload time\n", pos);
-+ list_del(pos);
-+ kfree(pos);
-+ }
-+ WRITE_UNLOCK(&ip_ct_gre_lock);
-+
-+ ip_conntrack_protocol_unregister(&gre);
-+}
-+
-+EXPORT_SYMBOL(ip_ct_gre_keymap_add);
-+EXPORT_SYMBOL(ip_ct_gre_keymap_change);
-+EXPORT_SYMBOL(ip_ct_gre_keymap_destroy);
-+
-+module_init(init);
-+module_exit(fini);
-diff -urN linux-2.4.29-old/net/ipv4/netfilter/ip_nat_core.c linux-2.4.29-dev/net/ipv4/netfilter/ip_nat_core.c
---- linux-2.4.29-old/net/ipv4/netfilter/ip_nat_core.c 2005-01-19 15:10:13.000000000 +0100
-+++ linux-2.4.29-dev/net/ipv4/netfilter/ip_nat_core.c 2005-04-02 19:07:18.000000000 +0200
-@@ -424,7 +424,7 @@
- *tuple = *orig_tuple;
- while ((rptr = find_best_ips_proto_fast(tuple, mr, conntrack, hooknum))
- != NULL) {
-- DEBUGP("Found best for "); DUMP_TUPLE(tuple);
-+ DEBUGP("Found best for "); DUMP_TUPLE_RAW(tuple);
- /* 3) The per-protocol part of the manip is made to
- map into the range to make a unique tuple. */
-
-@@ -564,9 +564,9 @@
- HOOK2MANIP(hooknum)==IP_NAT_MANIP_SRC ? "SRC" : "DST",
- conntrack);
- DEBUGP("Original: ");
-- DUMP_TUPLE(&orig_tp);
-+ DUMP_TUPLE_RAW(&orig_tp);
- DEBUGP("New: ");
-- DUMP_TUPLE(&new_tuple);
-+ DUMP_TUPLE_RAW(&new_tuple);
- #endif
-
- /* We now have two tuples (SRCIP/SRCPT/DSTIP/DSTPT):
-diff -urN linux-2.4.29-old/net/ipv4/netfilter/ip_nat_pptp.c linux-2.4.29-dev/net/ipv4/netfilter/ip_nat_pptp.c
---- linux-2.4.29-old/net/ipv4/netfilter/ip_nat_pptp.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.29-dev/net/ipv4/netfilter/ip_nat_pptp.c 2005-04-02 19:14:52.000000000 +0200
-@@ -0,0 +1,475 @@
-+/*
-+ * ip_nat_pptp.c - Version 1.5
-+ *
-+ * NAT support for PPTP (Point to Point Tunneling Protocol).
-+ * PPTP is a a protocol for creating virtual private networks.
-+ * It is a specification defined by Microsoft and some vendors
-+ * working with Microsoft. PPTP is built on top of a modified
-+ * version of the Internet Generic Routing Encapsulation Protocol.
-+ * GRE is defined in RFC 1701 and RFC 1702. Documentation of
-+ * PPTP can be found in RFC 2637
-+ *
-+ * (C) 2000-2003 by Harald Welte <laforge@gnumonks.org>
-+ *
-+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
-+ *
-+ * TODO: - Support for multiple calls within one session
-+ * (needs netfilter newnat code)
-+ * - NAT to a unique tuple, not to TCP source port
-+ * (needs netfilter tuple reservation)
-+ *
-+ * Changes:
-+ * 2002-02-10 - Version 1.3
-+ * - Use ip_nat_mangle_tcp_packet() because of cloned skb's
-+ * in local connections (Philip Craig <philipc@snapgear.com>)
-+ * - add checks for magicCookie and pptp version
-+ * - make argument list of pptp_{out,in}bound_packet() shorter
-+ * - move to C99 style initializers
-+ * - print version number at module loadtime
-+ * 2003-09-22 - Version 1.5
-+ * - use SNATed tcp sourceport as callid, since we get called before
-+ * TCP header is mangled (Philip Craig <philipc@snapgear.com>)
-+ *
-+ */
-+
-+#include <linux/config.h>
-+#include <linux/module.h>
-+#include <linux/ip.h>
-+#include <linux/tcp.h>
-+#include <net/tcp.h>
-+#include <linux/netfilter_ipv4/ip_nat.h>
-+#include <linux/netfilter_ipv4/ip_nat_rule.h>
-+#include <linux/netfilter_ipv4/ip_nat_helper.h>
-+#include <linux/netfilter_ipv4/ip_nat_pptp.h>
-+#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
-+#include <linux/netfilter_ipv4/ip_conntrack_proto_gre.h>
-+#include <linux/netfilter_ipv4/ip_conntrack_pptp.h>
-+
-+#define IP_NAT_PPTP_VERSION "1.5"
-+
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
-+MODULE_DESCRIPTION("Netfilter NAT helper module for PPTP");
-+
-+
-+#if 0
-+#include "ip_conntrack_pptp_priv.h"
-+#define DEBUGP(format, args...) printk(KERN_DEBUG __FILE__ ":" __FUNCTION__ \
-+ ": " format, ## args)
-+#else
-+#define DEBUGP(format, args...)
-+#endif
-+
-+static unsigned int
-+pptp_nat_expected(struct sk_buff **pskb,
-+ unsigned int hooknum,
-+ struct ip_conntrack *ct,
-+ struct ip_nat_info *info)
-+{
-+ struct ip_conntrack *master = master_ct(ct);
-+ struct ip_nat_multi_range mr;
-+ struct ip_ct_pptp_master *ct_pptp_info;
-+ struct ip_nat_pptp *nat_pptp_info;
-+ u_int32_t newip, newcid;
-+ int ret;
-+
-+ IP_NF_ASSERT(info);
-+ IP_NF_ASSERT(master);
-+ IP_NF_ASSERT(!(info->initialized & (1 << HOOK2MANIP(hooknum))));
-+
-+ DEBUGP("we have a connection!\n");
-+
-+ LOCK_BH(&ip_pptp_lock);
-+ ct_pptp_info = &master->help.ct_pptp_info;
-+ nat_pptp_info = &master->nat.help.nat_pptp_info;
-+
-+ /* need to alter GRE tuple because conntrack expectfn() used 'wrong'
-+ * (unmanipulated) values */
-+ if (HOOK2MANIP(hooknum) == IP_NAT_MANIP_DST) {
-+ DEBUGP("completing tuples with NAT info \n");
-+ /* we can do this, since we're unconfirmed */
-+ if (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u.gre.key ==
-+ htonl(ct_pptp_info->pac_call_id)) {
-+ /* assume PNS->PAC */
-+ ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u.gre.key =
-+ htonl(nat_pptp_info->pns_call_id);
-+ ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u.gre.key =
-+ htonl(nat_pptp_info->pns_call_id);
-+ newip = master->tuplehash[IP_CT_DIR_REPLY].tuple.src.ip;
-+ newcid = htonl(nat_pptp_info->pac_call_id);
-+ } else {
-+ /* assume PAC->PNS */
-+ ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u.gre.key =
-+ htonl(nat_pptp_info->pac_call_id);
-+ ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u.gre.key =
-+ htonl(nat_pptp_info->pac_call_id);
-+ newip = master->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip;
-+ newcid = htonl(nat_pptp_info->pns_call_id);
-+ }
-+ } else {
-+ if (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u.gre.key ==
-+ htonl(ct_pptp_info->pac_call_id)) {
-+ /* assume PNS->PAC */
-+ newip = master->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip;
-+ newcid = htonl(ct_pptp_info->pns_call_id);
-+ }
-+ else {
-+ /* assume PAC->PNS */
-+ newip = master->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip;
-+ newcid = htonl(ct_pptp_info->pac_call_id);
-+ }
-+ }
-+
-+ mr.rangesize = 1;
-+ mr.range[0].flags = IP_NAT_RANGE_MAP_IPS | IP_NAT_RANGE_PROTO_SPECIFIED;
-+ mr.range[0].min_ip = mr.range[0].max_ip = newip;
-+ mr.range[0].min = mr.range[0].max =
-+ ((union ip_conntrack_manip_proto ) { newcid });
-+ DEBUGP("change ip to %u.%u.%u.%u\n",
-+ NIPQUAD(newip));
-+ DEBUGP("change key to 0x%x\n", ntohl(newcid));
-+ ret = ip_nat_setup_info(ct, &mr, hooknum);
-+
-+ UNLOCK_BH(&ip_pptp_lock);
-+
-+ return ret;
-+
-+}
-+
-+/* outbound packets == from PNS to PAC */
-+static inline unsigned int
-+pptp_outbound_pkt(struct sk_buff **pskb,
-+ struct ip_conntrack *ct,
-+ enum ip_conntrack_info ctinfo,
-+ struct ip_conntrack_expect *exp)
-+
-+{
-+ struct iphdr *iph = (*pskb)->nh.iph;
-+ struct tcphdr *tcph = (void *) iph + iph->ihl*4;
-+ struct pptp_pkt_hdr *pptph = (struct pptp_pkt_hdr *)
-+ ((void *)tcph + tcph->doff*4);
-+
-+ struct PptpControlHeader *ctlh;
-+ union pptp_ctrl_union pptpReq;
-+ struct ip_ct_pptp_master *ct_pptp_info = &ct->help.ct_pptp_info;
-+ struct ip_nat_pptp *nat_pptp_info = &ct->nat.help.nat_pptp_info;
-+
-+ u_int16_t msg, *cid = NULL, new_callid;
-+
-+ /* FIXME: size checks !!! */
-+ ctlh = (struct PptpControlHeader *) ((void *) pptph + sizeof(*pptph));
-+ pptpReq.rawreq = (void *) ((void *) ctlh + sizeof(*ctlh));
-+
-+ new_callid = htons(ct_pptp_info->pns_call_id);
-+
-+ switch (msg = ntohs(ctlh->messageType)) {
-+ case PPTP_OUT_CALL_REQUEST:
-+ cid = &pptpReq.ocreq->callID;
-+ /* FIXME: ideally we would want to reserve a call ID
-+ * here. current netfilter NAT core is not able to do
-+ * this :( For now we use TCP source port. This breaks
-+ * multiple calls within one control session */
-+
-+ /* save original call ID in nat_info */
-+ nat_pptp_info->pns_call_id = ct_pptp_info->pns_call_id;
-+
-+ /* don't use tcph->source since we are at a DSTmanip
-+ * hook (e.g. PREROUTING) and pkt is not mangled yet */
-+ new_callid = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u.tcp.port;
-+
-+ /* save new call ID in ct info */
-+ ct_pptp_info->pns_call_id = ntohs(new_callid);
-+ break;
-+ case PPTP_IN_CALL_REPLY:
-+ cid = &pptpReq.icreq->callID;
-+ break;
-+ case PPTP_CALL_CLEAR_REQUEST:
-+ cid = &pptpReq.clrreq->callID;
-+ break;
-+ default:
-+ DEBUGP("unknown outbound packet 0x%04x:%s\n", msg,
-+ (msg <= PPTP_MSG_MAX)? strMName[msg]:strMName[0]);
-+ /* fall through */
-+
-+ case PPTP_SET_LINK_INFO:
-+ /* only need to NAT in case PAC is behind NAT box */
-+ case PPTP_START_SESSION_REQUEST:
-+ case PPTP_START_SESSION_REPLY:
-+ case PPTP_STOP_SESSION_REQUEST:
-+ case PPTP_STOP_SESSION_REPLY:
-+ case PPTP_ECHO_REQUEST:
-+ case PPTP_ECHO_REPLY:
-+ /* no need to alter packet */
-+ return NF_ACCEPT;
-+ }
-+
-+ IP_NF_ASSERT(cid);
-+
-+ DEBUGP("altering call id from 0x%04x to 0x%04x\n",
-+ ntohs(*cid), ntohs(new_callid));
-+
-+ /* mangle packet */
-+ ip_nat_mangle_tcp_packet(pskb, ct, ctinfo, (void *)cid - (void *)pptph,
-+ sizeof(new_callid), (char *)&new_callid,
-+ sizeof(new_callid));
-+
-+ return NF_ACCEPT;
-+}
-+
-+/* inbound packets == from PAC to PNS */
-+static inline unsigned int
-+pptp_inbound_pkt(struct sk_buff **pskb,
-+ struct ip_conntrack *ct,
-+ enum ip_conntrack_info ctinfo,
-+ struct ip_conntrack_expect *oldexp)
-+{
-+ struct iphdr *iph = (*pskb)->nh.iph;
-+ struct tcphdr *tcph = (void *) iph + iph->ihl*4;
-+ struct pptp_pkt_hdr *pptph = (struct pptp_pkt_hdr *)
-+ ((void *)tcph + tcph->doff*4);
-+
-+ struct PptpControlHeader *ctlh;
-+ union pptp_ctrl_union pptpReq;
-+ struct ip_ct_pptp_master *ct_pptp_info = &ct->help.ct_pptp_info;
-+ struct ip_nat_pptp *nat_pptp_info = &ct->nat.help.nat_pptp_info;
-+
-+ u_int16_t msg, new_cid = 0, new_pcid, *pcid = NULL, *cid = NULL;
-+ u_int32_t old_dst_ip;
-+
-+ struct ip_conntrack_tuple t, inv_t;
-+ struct ip_conntrack_tuple *orig_t, *reply_t;
-+
-+ /* FIXME: size checks !!! */
-+ ctlh = (struct PptpControlHeader *) ((void *) pptph + sizeof(*pptph));
-+ pptpReq.rawreq = (void *) ((void *) ctlh + sizeof(*ctlh));
-+
-+ new_pcid = htons(nat_pptp_info->pns_call_id);
-+
-+ switch (msg = ntohs(ctlh->messageType)) {
-+ case PPTP_OUT_CALL_REPLY:
-+ pcid = &pptpReq.ocack->peersCallID;
-+ cid = &pptpReq.ocack->callID;
-+ if (!oldexp) {
-+ DEBUGP("outcall but no expectation\n");
-+ break;
-+ }
-+ old_dst_ip = oldexp->tuple.dst.ip;
-+ t = oldexp->tuple;
-+ invert_tuplepr(&inv_t, &t);
-+
-+ /* save original PAC call ID in nat_info */
-+ nat_pptp_info->pac_call_id = ct_pptp_info->pac_call_id;
-+
-+ /* alter expectation */
-+ orig_t = &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple;
-+ reply_t = &ct->tuplehash[IP_CT_DIR_REPLY].tuple;
-+ if (t.src.ip == orig_t->src.ip && t.dst.ip == orig_t->dst.ip) {
-+ /* expectation for PNS->PAC direction */
-+ t.src.u.gre.key = htonl(nat_pptp_info->pns_call_id);
-+ t.dst.u.gre.key = htonl(ct_pptp_info->pac_call_id);
-+ inv_t.src.ip = reply_t->src.ip;
-+ inv_t.dst.ip = reply_t->dst.ip;
-+ inv_t.src.u.gre.key = htonl(nat_pptp_info->pac_call_id);
-+ inv_t.dst.u.gre.key = htonl(ct_pptp_info->pns_call_id);
-+ } else {
-+ /* expectation for PAC->PNS direction */
-+ t.src.u.gre.key = htonl(nat_pptp_info->pac_call_id);
-+ t.dst.u.gre.key = htonl(ct_pptp_info->pns_call_id);
-+ inv_t.src.ip = orig_t->src.ip;
-+ inv_t.dst.ip = orig_t->dst.ip;
-+ inv_t.src.u.gre.key = htonl(nat_pptp_info->pns_call_id);
-+ inv_t.dst.u.gre.key = htonl(ct_pptp_info->pac_call_id);
-+ }
-+
-+ if (!ip_conntrack_change_expect(oldexp, &t)) {
-+ DEBUGP("successfully changed expect\n");
-+ } else {
-+ DEBUGP("can't change expect\n");
-+ }
-+ ip_ct_gre_keymap_change(oldexp->proto.gre.keymap_orig, &t);
-+ ip_ct_gre_keymap_change(oldexp->proto.gre.keymap_reply, &inv_t);
-+ break;
-+ case PPTP_IN_CALL_CONNECT:
-+ pcid = &pptpReq.iccon->peersCallID;
-+ if (!oldexp)
-+ break;
-+ old_dst_ip = oldexp->tuple.dst.ip;
-+ t = oldexp->tuple;
-+
-+ /* alter expectation, no need for callID */
-+ if (t.dst.ip == ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip) {
-+ /* expectation for PNS->PAC direction */
-+ t.src.ip = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip;
-+ } else {
-+ /* expectation for PAC->PNS direction */
-+ t.dst.ip = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip;
-+ }
-+
-+ if (!ip_conntrack_change_expect(oldexp, &t)) {
-+ DEBUGP("successfully changed expect\n");
-+ } else {
-+ DEBUGP("can't change expect\n");
-+ }
-+ break;
-+ case PPTP_IN_CALL_REQUEST:
-+ /* only need to nat in case PAC is behind NAT box */
-+ break;
-+ case PPTP_WAN_ERROR_NOTIFY:
-+ pcid = &pptpReq.wanerr->peersCallID;
-+ break;
-+ case PPTP_CALL_DISCONNECT_NOTIFY:
-+ pcid = &pptpReq.disc->callID;
-+ break;
-+
-+ default:
-+ DEBUGP("unknown inbound packet %s\n",
-+ (msg <= PPTP_MSG_MAX)? strMName[msg]:strMName[0]);
-+ /* fall through */
-+
-+ case PPTP_START_SESSION_REQUEST:
-+ case PPTP_START_SESSION_REPLY:
-+ case PPTP_STOP_SESSION_REQUEST:
-+ case PPTP_STOP_SESSION_REPLY:
-+ case PPTP_ECHO_REQUEST:
-+ case PPTP_ECHO_REPLY:
-+ /* no need to alter packet */
-+ return NF_ACCEPT;
-+ }
-+
-+ /* mangle packet */
-+ IP_NF_ASSERT(pcid);
-+ DEBUGP("altering peer call id from 0x%04x to 0x%04x\n",
-+ ntohs(*pcid), ntohs(new_pcid));
-+ ip_nat_mangle_tcp_packet(pskb, ct, ctinfo, (void *)pcid - (void *)pptph,
-+ sizeof(new_pcid), (char *)&new_pcid,
-+ sizeof(new_pcid));
-+
-+ if (new_cid) {
-+ IP_NF_ASSERT(cid);
-+ DEBUGP("altering call id from 0x%04x to 0x%04x\n",
-+ ntohs(*cid), ntohs(new_cid));
-+ ip_nat_mangle_tcp_packet(pskb, ct, ctinfo,
-+ (void *)cid - (void *)pptph,
-+ sizeof(new_cid), (char *)&new_cid,
-+ sizeof(new_cid));
-+ }
-+
-+ /* great, at least we don't need to resize packets */
-+ return NF_ACCEPT;
-+}
-+
-+
-+static unsigned int tcp_help(struct ip_conntrack *ct,
-+ struct ip_conntrack_expect *exp,
-+ struct ip_nat_info *info,
-+ enum ip_conntrack_info ctinfo,
-+ unsigned int hooknum, struct sk_buff **pskb)
-+{
-+ struct iphdr *iph = (*pskb)->nh.iph;
-+ struct tcphdr *tcph = (void *) iph + iph->ihl*4;
-+ unsigned int datalen = (*pskb)->len - iph->ihl*4 - tcph->doff*4;
-+ struct pptp_pkt_hdr *pptph;
-+
-+ int dir;
-+
-+ DEBUGP("entering\n");
-+
-+ /* Only mangle things once: DST for original direction
-+ and SRC for reply direction. */
-+ dir = CTINFO2DIR(ctinfo);
-+ if (!((HOOK2MANIP(hooknum) == IP_NAT_MANIP_SRC
-+ && dir == IP_CT_DIR_ORIGINAL)
-+ || (HOOK2MANIP(hooknum) == IP_NAT_MANIP_DST
-+ && dir == IP_CT_DIR_REPLY))) {
-+ DEBUGP("Not touching dir %s at hook %s\n",
-+ dir == IP_CT_DIR_ORIGINAL ? "ORIG" : "REPLY",
-+ hooknum == NF_IP_POST_ROUTING ? "POSTROUTING"
-+ : hooknum == NF_IP_PRE_ROUTING ? "PREROUTING"
-+ : hooknum == NF_IP_LOCAL_OUT ? "OUTPUT"
-+ : hooknum == NF_IP_LOCAL_IN ? "INPUT" : "???");
-+ return NF_ACCEPT;
-+ }
-+
-+ /* if packet is too small, just skip it */
-+ if (datalen < sizeof(struct pptp_pkt_hdr)+
-+ sizeof(struct PptpControlHeader)) {
-+ DEBUGP("pptp packet too short\n");
-+ return NF_ACCEPT;
-+ }
-+
-+ pptph = (struct pptp_pkt_hdr *) ((void *)tcph + tcph->doff*4);
-+
-+ /* if it's not a control message, we can't handle it */
-+ if (ntohs(pptph->packetType) != PPTP_PACKET_CONTROL ||
-+ ntohl(pptph->magicCookie) != PPTP_MAGIC_COOKIE) {
-+ DEBUGP("not a pptp control packet\n");
-+ return NF_ACCEPT;
-+ }
-+
-+ LOCK_BH(&ip_pptp_lock);
-+
-+ if (dir == IP_CT_DIR_ORIGINAL) {
-+ /* reuqests sent by client to server (PNS->PAC) */
-+ pptp_outbound_pkt(pskb, ct, ctinfo, exp);
-+ } else {
-+ /* response from the server to the client (PAC->PNS) */
-+ pptp_inbound_pkt(pskb, ct, ctinfo, exp);
-+ }
-+
-+ UNLOCK_BH(&ip_pptp_lock);
-+
-+ return NF_ACCEPT;
-+}
-+
-+/* nat helper struct for control connection */
-+static struct ip_nat_helper pptp_tcp_helper = {
-+ .list = { NULL, NULL },
-+ .name = "pptp",
-+ .flags = IP_NAT_HELPER_F_ALWAYS,
-+ .me = THIS_MODULE,
-+ .tuple = { .src = { .ip = 0,
-+ .u = { .tcp = { .port =
-+ __constant_htons(PPTP_CONTROL_PORT) }
-+ }
-+ },
-+ .dst = { .ip = 0,
-+ .u = { .all = 0 },
-+ .protonum = IPPROTO_TCP
-+ }
-+ },
-+
-+ .mask = { .src = { .ip = 0,
-+ .u = { .tcp = { .port = 0xFFFF } }
-+ },
-+ .dst = { .ip = 0,
-+ .u = { .all = 0 },
-+ .protonum = 0xFFFF
-+ }
-+ },
-+ .help = tcp_help,
-+ .expect = pptp_nat_expected
-+};
-+
-+
-+static int __init init(void)
-+{
-+ DEBUGP("%s: registering NAT helper\n", __FILE__);
-+ if (ip_nat_helper_register(&pptp_tcp_helper)) {
-+ printk(KERN_ERR "Unable to register NAT application helper "
-+ "for pptp\n");
-+ return -EIO;
-+ }
-+
-+ printk("ip_nat_pptp version %s loaded\n", IP_NAT_PPTP_VERSION);
-+ return 0;
-+}
-+
-+static void __exit fini(void)
-+{
-+ DEBUGP("cleanup_module\n" );
-+ ip_nat_helper_unregister(&pptp_tcp_helper);
-+ printk("ip_nat_pptp version %s unloaded\n", IP_NAT_PPTP_VERSION);
-+}
-+
-+module_init(init);
-+module_exit(fini);
-Binary files linux-2.4.29-old/net/ipv4/netfilter/.ip_nat_pptp.c.swp and linux-2.4.29-dev/net/ipv4/netfilter/.ip_nat_pptp.c.swp differ
-diff -urN linux-2.4.29-old/net/ipv4/netfilter/ip_nat_proto_gre.c linux-2.4.29-dev/net/ipv4/netfilter/ip_nat_proto_gre.c
---- linux-2.4.29-old/net/ipv4/netfilter/ip_nat_proto_gre.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.29-dev/net/ipv4/netfilter/ip_nat_proto_gre.c 2005-04-02 19:15:10.000000000 +0200
-@@ -0,0 +1,202 @@
-+/*
-+ * ip_nat_proto_gre.c - Version 1.2
-+ *
-+ * NAT protocol helper module for GRE.
-+ *
-+ * GRE is a generic encapsulation protocol, which is generally not very
-+ * suited for NAT, as it has no protocol-specific part as port numbers.
-+ *
-+ * It has an optional key field, which may help us distinguishing two
-+ * connections between the same two hosts.
-+ *
-+ * GRE is defined in RFC 1701 and RFC 1702, as well as RFC 2784
-+ *
-+ * PPTP is built on top of a modified version of GRE, and has a mandatory
-+ * field called "CallID", which serves us for the same purpose as the key
-+ * field in plain GRE.
-+ *
-+ * Documentation about PPTP can be found in RFC 2637
-+ *
-+ * (C) 2000-2003 by Harald Welte <laforge@gnumonks.org>
-+ *
-+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
-+ *
-+ */
-+
-+#include <linux/config.h>
-+#include <linux/module.h>
-+#include <linux/ip.h>
-+#include <linux/netfilter_ipv4/ip_nat.h>
-+#include <linux/netfilter_ipv4/ip_nat_rule.h>
-+#include <linux/netfilter_ipv4/ip_nat_protocol.h>
-+#include <linux/netfilter_ipv4/ip_conntrack_proto_gre.h>
-+
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
-+MODULE_DESCRIPTION("Netfilter NAT protocol helper module for GRE");
-+
-+#if 0
-+#define DEBUGP(format, args...) printk(KERN_DEBUG __FILE__ ":" __FUNCTION__ \
-+ ": " format, ## args)
-+#else
-+#define DEBUGP(x, args...)
-+#endif
-+
-+/* is key in given range between min and max */
-+static int
-+gre_in_range(const struct ip_conntrack_tuple *tuple,
-+ enum ip_nat_manip_type maniptype,
-+ const union ip_conntrack_manip_proto *min,
-+ const union ip_conntrack_manip_proto *max)
-+{
-+ u_int32_t key;
-+
-+ if (maniptype == IP_NAT_MANIP_SRC)
-+ key = tuple->src.u.gre.key;
-+ else
-+ key = tuple->dst.u.gre.key;
-+
-+ return ntohl(key) >= ntohl(min->gre.key)
-+ && ntohl(key) <= ntohl(max->gre.key);
-+}
-+
-+/* generate unique tuple ... */
-+static int
-+gre_unique_tuple(struct ip_conntrack_tuple *tuple,
-+ const struct ip_nat_range *range,
-+ enum ip_nat_manip_type maniptype,
-+ const struct ip_conntrack *conntrack)
-+{
-+ u_int32_t min, i, range_size;
-+ u_int32_t key = 0, *keyptr;
-+
-+ if (maniptype == IP_NAT_MANIP_SRC)
-+ keyptr = &tuple->src.u.gre.key;
-+ else
-+ keyptr = &tuple->dst.u.gre.key;
-+
-+ if (!(range->flags & IP_NAT_RANGE_PROTO_SPECIFIED)) {
-+
-+ DEBUGP("%p: NATing GRE PPTP\n", conntrack);
-+ min = 1;
-+ range_size = 0xffff;
-+
-+ } else {
-+ min = ntohl(range->min.gre.key);
-+ range_size = ntohl(range->max.gre.key) - min + 1;
-+ }
-+
-+ DEBUGP("min = %u, range_size = %u\n", min, range_size);
-+
-+ for (i = 0; i < range_size; i++, key++) {
-+ *keyptr = htonl(min + key % range_size);
-+ if (!ip_nat_used_tuple(tuple, conntrack))
-+ return 1;
-+ }
-+
-+ DEBUGP("%p: no NAT mapping\n", conntrack);
-+
-+ return 0;
-+}
-+
-+/* manipulate a GRE packet according to maniptype */
-+static void
-+gre_manip_pkt(struct iphdr *iph, size_t len,
-+ const struct ip_conntrack_manip *manip,
-+ enum ip_nat_manip_type maniptype)
-+{
-+ struct gre_hdr *greh = (struct gre_hdr *)((u_int32_t *)iph+iph->ihl);
-+ struct gre_hdr_pptp *pgreh = (struct gre_hdr_pptp *) greh;
-+
-+ /* we only have destination manip of a packet, since 'source key'
-+ * is not present in the packet itself */
-+ if (maniptype == IP_NAT_MANIP_DST) {
-+ /* key manipulation is always dest */
-+ switch (greh->version) {
-+ case 0:
-+ if (!greh->key) {
-+ DEBUGP("can't nat GRE w/o key\n");
-+ break;
-+ }
-+ if (greh->csum) {
-+ /* FIXME: Never tested this code... */
-+ *(gre_csum(greh)) =
-+ ip_nat_cheat_check(~*(gre_key(greh)),
-+ manip->u.gre.key,
-+ *(gre_csum(greh)));
-+ }
-+ *(gre_key(greh)) = manip->u.gre.key;
-+ break;
-+ case GRE_VERSION_PPTP:
-+ DEBUGP("call_id -> 0x%04x\n",
-+ ntohl(manip->u.gre.key));
-+ pgreh->call_id = htons(ntohl(manip->u.gre.key));
-+ break;
-+ default:
-+ DEBUGP("can't nat unknown GRE version\n");
-+ break;
-+ }
-+ }
-+}
-+
-+/* print out a nat tuple */
-+static unsigned int
-+gre_print(char *buffer,
-+ const struct ip_conntrack_tuple *match,
-+ const struct ip_conntrack_tuple *mask)
-+{
-+ unsigned int len = 0;
-+
-+ if (mask->src.u.gre.key)
-+ len += sprintf(buffer + len, "srckey=0x%x ",
-+ ntohl(match->src.u.gre.key));
-+
-+ if (mask->dst.u.gre.key)
-+ len += sprintf(buffer + len, "dstkey=0x%x ",
-+ ntohl(match->src.u.gre.key));
-+
-+ return len;
-+}
-+
-+/* print a range of keys */
-+static unsigned int
-+gre_print_range(char *buffer, const struct ip_nat_range *range)
-+{
-+ if (range->min.gre.key != 0
-+ || range->max.gre.key != 0xFFFF) {
-+ if (range->min.gre.key == range->max.gre.key)
-+ return sprintf(buffer, "key 0x%x ",
-+ ntohl(range->min.gre.key));
-+ else
-+ return sprintf(buffer, "keys 0x%u-0x%u ",
-+ ntohl(range->min.gre.key),
-+ ntohl(range->max.gre.key));
-+ } else
-+ return 0;
-+}
-+
-+/* nat helper struct */
-+static struct ip_nat_protocol gre =
-+ { { NULL, NULL }, "GRE", IPPROTO_GRE,
-+ gre_manip_pkt,
-+ gre_in_range,
-+ gre_unique_tuple,
-+ gre_print,
-+ gre_print_range
-+ };
-+
-+static int __init init(void)
-+{
-+ if (ip_nat_protocol_register(&gre))
-+ return -EIO;
-+
-+ return 0;
-+}
-+
-+static void __exit fini(void)
-+{
-+ ip_nat_protocol_unregister(&gre);
-+}
-+
-+module_init(init);
-+module_exit(fini);
-diff -urN linux-2.4.29-old/net/ipv4/netfilter/Makefile linux-2.4.29-dev/net/ipv4/netfilter/Makefile
---- linux-2.4.29-old/net/ipv4/netfilter/Makefile 2005-04-02 19:04:11.000000000 +0200
-+++ linux-2.4.29-dev/net/ipv4/netfilter/Makefile 2005-04-02 19:07:18.000000000 +0200
-@@ -36,23 +36,32 @@
- ifdef CONFIG_IP_NF_AMANDA
- export-objs += ip_conntrack_amanda.o
- endif
--
- obj-$(CONFIG_IP_NF_TFTP) += ip_conntrack_tftp.o
- obj-$(CONFIG_IP_NF_FTP) += ip_conntrack_ftp.o
- ifdef CONFIG_IP_NF_FTP
- export-objs += ip_conntrack_ftp.o
- endif
--
- obj-$(CONFIG_IP_NF_IRC) += ip_conntrack_irc.o
- ifdef CONFIG_IP_NF_IRC
- export-objs += ip_conntrack_irc.o
- endif
-+obj-$(CONFIG_IP_NF_CT_PROTO_GRE) += ip_conntrack_proto_gre.o
-+ifdef CONFIG_IP_NF_CT_PROTO_GRE
-+ export-objs += ip_conntrack_proto_gre.o
-+endif
-+obj-$(CONFIG_IP_NF_PPTP) += ip_conntrack_pptp.o
-+ifdef CONFIG_IP_NF_NAT_PPTP
-+ export-objs += ip_conntrack_pptp.o
-+endif
-+
-
- # NAT helpers
- obj-$(CONFIG_IP_NF_NAT_AMANDA) += ip_nat_amanda.o
- obj-$(CONFIG_IP_NF_NAT_TFTP) += ip_nat_tftp.o
- obj-$(CONFIG_IP_NF_NAT_FTP) += ip_nat_ftp.o
- obj-$(CONFIG_IP_NF_NAT_IRC) += ip_nat_irc.o
-+obj-$(CONFIG_IP_NF_NAT_PROTO_GRE) += ip_nat_proto_gre.o
-+obj-$(CONFIG_IP_NF_NAT_PPTP) += ip_nat_pptp.o
-
- # generic IP tables
- obj-$(CONFIG_IP_NF_IPTABLES) += ip_tables.o
+++ /dev/null
-diff -Naur linux-old/Documentation/Configure.help linux-new/Documentation/Configure.help
---- linux-old/Documentation/Configure.help 2005-07-23 23:34:46.000000000 +0200
-+++ linux-new/Documentation/Configure.help 2005-08-10 22:13:01.000000000 +0200
-@@ -3209,6 +3209,75 @@
- If you want to compile it as a module, say M here and read
- <file:Documentation/modules.txt>. If unsure, say `N'.
-
-+IP set support
-+CONFIG_IP_NF_SET
-+ This option adds IP set support to the kernel.
-+
-+ In order to define and use sets, you need userlevel utilities: an
-+ iptables binary which knows about IP sets and the program ipset(8),
-+ by which you can define and setup the sets themselves.
-+
-+ If you want to compile it as a module, say M here and read
-+ <file:Documentation/modules.txt>. If unsure, say `N'.
-+
-+set match support
-+CONFIG_IP_NF_MATCH_SET
-+ This option adds IP set match support.
-+ You need the ipset utility to create and set up the sets.
-+
-+ If you want to compile it as a module, say M here and read
-+ <file:Documentation/modules.txt>. If unsure, say `N'.
-+
-+SET target support
-+CONFIG_IP_NF_TARGET_SET
-+ This option adds IP set target support.
-+ You need the ipset utility to create and set up the sets.
-+
-+ If you want to compile it as a module, say M here and read
-+ <file:Documentation/modules.txt>. If unsure, say `N'.
-+
-+ipmap set type support
-+CONFIG_IP_NF_SET_IPMAP
-+ This option adds the ipmap set type support.
-+
-+ If you want to compile it as a module, say M here and read
-+ <file:Documentation/modules.txt>. If unsure, say `N'.
-+
-+macipmap set type support
-+CONFIG_IP_NF_SET_MACIPMAP
-+ This option adds the macipmap set type support.
-+
-+ If you want to compile it as a module, say M here and read
-+ <file:Documentation/modules.txt>. If unsure, say `N'.
-+
-+portmap set type support
-+CONFIG_IP_NF_SET_PORTMAP
-+ This option adds the portmap set type support.
-+
-+ If you want to compile it as a module, say M here and read
-+ <file:Documentation/modules.txt>. If unsure, say `N'.
-+
-+iphash set type support
-+CONFIG_IP_NF_SET_IPHASH
-+ This option adds the iphash set type support.
-+
-+ If you want to compile it as a module, say M here and read
-+ <file:Documentation/modules.txt>. If unsure, say `N'.
-+
-+nethash set type support
-+CONFIG_IP_NF_SET_NETHASH
-+ This option adds the nethash set type support.
-+
-+ If you want to compile it as a module, say M here and read
-+ <file:Documentation/modules.txt>. If unsure, say `N'.
-+
-+iptree set type support
-+CONFIG_IP_NF_SET_IPTREE
-+ This option adds the iptree set type support.
-+
-+ If you want to compile it as a module, say M here and read
-+ <file:Documentation/modules.txt>. If unsure, say `N'.
-+
- TTL target support
- CONFIG_IP_NF_TARGET_TTL
- This option adds a `TTL' target, which enables the user to set
-diff -Naur linux-old/include/linux/netfilter_ipv4/ip_set.h linux-new/include/linux/netfilter_ipv4/ip_set.h
---- linux-old/include/linux/netfilter_ipv4/ip_set.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/include/linux/netfilter_ipv4/ip_set.h 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,489 @@
-+#ifndef _IP_SET_H
-+#define _IP_SET_H
-+
-+/* Copyright (C) 2000-2002 Joakim Axelsson <gozem@linux.nu>
-+ * Patrick Schaaf <bof@bof.de>
-+ * Martin Josefsson <gandalf@wlug.westbo.se>
-+ * Copyright (C) 2003-2004 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+/*
-+ * A sockopt of such quality has hardly ever been seen before on the open
-+ * market! This little beauty, hardly ever used: above 64, so it's
-+ * traditionally used for firewalling, not touched (even once!) by the
-+ * 2.0, 2.2 and 2.4 kernels!
-+ *
-+ * Comes with its own certificate of authenticity, valid anywhere in the
-+ * Free world!
-+ *
-+ * Rusty, 19.4.2000
-+ */
-+#define SO_IP_SET 83
-+
-+/*
-+ * Heavily modify by Joakim Axelsson 08.03.2002
-+ * - Made it more modulebased
-+ *
-+ * Additional heavy modifications by Jozsef Kadlecsik 22.02.2004
-+ * - bindings added
-+ * - in order to "deal with" backward compatibility, renamed to ipset
-+ */
-+
-+/*
-+ * Used so that the kernel module and ipset-binary can match their versions
-+ */
-+#define IP_SET_PROTOCOL_VERSION 2
-+
-+#define IP_SET_MAXNAMELEN 32 /* set names and set typenames */
-+
-+/* Lets work with our own typedef for representing an IP address.
-+ * We hope to make the code more portable, possibly to IPv6...
-+ *
-+ * The representation works in HOST byte order, because most set types
-+ * will perform arithmetic operations and compare operations.
-+ *
-+ * For now the type is an uint32_t.
-+ *
-+ * Make sure to ONLY use the functions when translating and parsing
-+ * in order to keep the host byte order and make it more portable:
-+ * parse_ip()
-+ * parse_mask()
-+ * parse_ipandmask()
-+ * ip_tostring()
-+ * (Joakim: where are they???)
-+ */
-+
-+typedef uint32_t ip_set_ip_t;
-+
-+/* Sets are identified by an id in kernel space. Tweak with ip_set_id_t
-+ * and IP_SET_INVALID_ID if you want to increase the max number of sets.
-+ */
-+typedef uint16_t ip_set_id_t;
-+
-+#define IP_SET_INVALID_ID 65535
-+
-+/* How deep we follow bindings */
-+#define IP_SET_MAX_BINDINGS 6
-+
-+/*
-+ * Option flags for kernel operations (ipt_set_info)
-+ */
-+#define IPSET_SRC 0x01 /* Source match/add */
-+#define IPSET_DST 0x02 /* Destination match/add */
-+#define IPSET_MATCH_INV 0x04 /* Inverse matching */
-+
-+/*
-+ * Set types (flavours)
-+ */
-+#define IPSET_TYPE_IP 0 /* IP address type of set */
-+#define IPSET_TYPE_PORT 1 /* Port type of set */
-+
-+/* Reserved keywords */
-+#define IPSET_TOKEN_DEFAULT ":default:"
-+#define IPSET_TOKEN_ALL ":all:"
-+
-+/* SO_IP_SET operation constants, and their request struct types.
-+ *
-+ * Operation ids:
-+ * 0-99: commands with version checking
-+ * 100-199: add/del/test/bind/unbind
-+ * 200-299: list, save, restore
-+ */
-+
-+/* Single shot operations:
-+ * version, create, destroy, flush, rename and swap
-+ *
-+ * Sets are identified by name.
-+ */
-+
-+#define IP_SET_REQ_STD \
-+ unsigned op; \
-+ unsigned version; \
-+ char name[IP_SET_MAXNAMELEN]
-+
-+#define IP_SET_OP_CREATE 0x00000001 /* Create a new (empty) set */
-+struct ip_set_req_create {
-+ IP_SET_REQ_STD;
-+ char typename[IP_SET_MAXNAMELEN];
-+};
-+
-+#define IP_SET_OP_DESTROY 0x00000002 /* Remove a (empty) set */
-+struct ip_set_req_std {
-+ IP_SET_REQ_STD;
-+};
-+
-+#define IP_SET_OP_FLUSH 0x00000003 /* Remove all IPs in a set */
-+/* Uses ip_set_req_std */
-+
-+#define IP_SET_OP_RENAME 0x00000004 /* Rename a set */
-+/* Uses ip_set_req_create */
-+
-+#define IP_SET_OP_SWAP 0x00000005 /* Swap two sets */
-+/* Uses ip_set_req_create */
-+
-+union ip_set_name_index {
-+ char name[IP_SET_MAXNAMELEN];
-+ ip_set_id_t index;
-+};
-+
-+#define IP_SET_OP_GET_BYNAME 0x00000006 /* Get set index by name */
-+struct ip_set_req_get_set {
-+ unsigned op;
-+ unsigned version;
-+ union ip_set_name_index set;
-+};
-+
-+#define IP_SET_OP_GET_BYINDEX 0x00000007 /* Get set name by index */
-+/* Uses ip_set_req_get_set */
-+
-+#define IP_SET_OP_VERSION 0x00000100 /* Ask kernel version */
-+struct ip_set_req_version {
-+ unsigned op;
-+ unsigned version;
-+};
-+
-+/* Double shots operations:
-+ * add, del, test, bind and unbind.
-+ *
-+ * First we query the kernel to get the index and type of the target set,
-+ * then issue the command. Validity of IP is checked in kernel in order
-+ * to minimalize sockopt operations.
-+ */
-+
-+/* Get minimal set data for add/del/test/bind/unbind IP */
-+#define IP_SET_OP_ADT_GET 0x00000010 /* Get set and type */
-+struct ip_set_req_adt_get {
-+ unsigned op;
-+ unsigned version;
-+ union ip_set_name_index set;
-+ char typename[IP_SET_MAXNAMELEN];
-+};
-+
-+#define IP_SET_REQ_BYINDEX \
-+ unsigned op; \
-+ ip_set_id_t index;
-+
-+struct ip_set_req_adt {
-+ IP_SET_REQ_BYINDEX;
-+};
-+
-+#define IP_SET_OP_ADD_IP 0x00000101 /* Add an IP to a set */
-+/* Uses ip_set_req_adt, with type specific addage */
-+
-+#define IP_SET_OP_DEL_IP 0x00000102 /* Remove an IP from a set */
-+/* Uses ip_set_req_adt, with type specific addage */
-+
-+#define IP_SET_OP_TEST_IP 0x00000103 /* Test an IP in a set */
-+/* Uses ip_set_req_adt, with type specific addage */
-+
-+#define IP_SET_OP_BIND_SET 0x00000104 /* Bind an IP to a set */
-+/* Uses ip_set_req_bind, with type specific addage */
-+struct ip_set_req_bind {
-+ IP_SET_REQ_BYINDEX;
-+ char binding[IP_SET_MAXNAMELEN];
-+};
-+
-+#define IP_SET_OP_UNBIND_SET 0x00000105 /* Unbind an IP from a set */
-+/* Uses ip_set_req_bind, with type speficic addage
-+ * index = 0 means unbinding for all sets */
-+
-+#define IP_SET_OP_TEST_BIND_SET 0x00000106 /* Test binding an IP to a set */
-+/* Uses ip_set_req_bind, with type specific addage */
-+
-+/* Multiple shots operations: list, save, restore.
-+ *
-+ * - check kernel version and query the max number of sets
-+ * - get the basic information on all sets
-+ * and size required for the next step
-+ * - get actual set data: header, data, bindings
-+ */
-+
-+/* Get max_sets and the index of a queried set
-+ */
-+#define IP_SET_OP_MAX_SETS 0x00000020
-+struct ip_set_req_max_sets {
-+ unsigned op;
-+ unsigned version;
-+ ip_set_id_t max_sets; /* max_sets */
-+ ip_set_id_t sets; /* real number of sets */
-+ union ip_set_name_index set; /* index of set if name used */
-+};
-+
-+/* Get the id and name of the sets plus size for next step */
-+#define IP_SET_OP_LIST_SIZE 0x00000201
-+#define IP_SET_OP_SAVE_SIZE 0x00000202
-+struct ip_set_req_setnames {
-+ unsigned op;
-+ ip_set_id_t index; /* set to list/save */
-+ size_t size; /* size to get setdata/bindings */
-+ /* followed by sets number of struct ip_set_name_list */
-+};
-+
-+struct ip_set_name_list {
-+ char name[IP_SET_MAXNAMELEN];
-+ char typename[IP_SET_MAXNAMELEN];
-+ ip_set_id_t index;
-+ ip_set_id_t id;
-+};
-+
-+/* The actual list operation */
-+#define IP_SET_OP_LIST 0x00000203
-+struct ip_set_req_list {
-+ IP_SET_REQ_BYINDEX;
-+ /* sets number of struct ip_set_list in reply */
-+};
-+
-+struct ip_set_list {
-+ ip_set_id_t index;
-+ ip_set_id_t binding;
-+ u_int32_t ref;
-+ size_t header_size; /* Set header data of header_size */
-+ size_t members_size; /* Set members data of members_size */
-+ size_t bindings_size; /* Set bindings data of bindings_size */
-+};
-+
-+struct ip_set_hash_list {
-+ ip_set_ip_t ip;
-+ ip_set_id_t binding;
-+};
-+
-+/* The save operation */
-+#define IP_SET_OP_SAVE 0x00000204
-+/* Uses ip_set_req_list, in the reply replaced by
-+ * sets number of struct ip_set_save plus a marker
-+ * ip_set_save followed by ip_set_hash_save structures.
-+ */
-+struct ip_set_save {
-+ ip_set_id_t index;
-+ ip_set_id_t binding;
-+ size_t header_size; /* Set header data of header_size */
-+ size_t members_size; /* Set members data of members_size */
-+};
-+
-+/* At restoring, ip == 0 means default binding for the given set: */
-+struct ip_set_hash_save {
-+ ip_set_ip_t ip;
-+ ip_set_id_t id;
-+ ip_set_id_t binding;
-+};
-+
-+/* The restore operation */
-+#define IP_SET_OP_RESTORE 0x00000205
-+/* Uses ip_set_req_setnames followed by ip_set_restore structures
-+ * plus a marker ip_set_restore, followed by ip_set_hash_save
-+ * structures.
-+ */
-+struct ip_set_restore {
-+ char name[IP_SET_MAXNAMELEN];
-+ char typename[IP_SET_MAXNAMELEN];
-+ ip_set_id_t index;
-+ size_t header_size; /* Create data of header_size */
-+ size_t members_size; /* Set members data of members_size */
-+};
-+
-+static inline int bitmap_bytes(ip_set_ip_t a, ip_set_ip_t b)
-+{
-+ return 4 * ((((b - a + 8) / 8) + 3) / 4);
-+}
-+
-+#ifdef __KERNEL__
-+
-+#define ip_set_printk(format, args...) \
-+ do { \
-+ printk("%s: %s: ", __FILE__, __FUNCTION__); \
-+ printk(format "\n" , ## args); \
-+ } while (0)
-+
-+#if defined(IP_SET_DEBUG)
-+#define DP(format, args...) \
-+ do { \
-+ printk("%s: %s (DBG): ", __FILE__, __FUNCTION__);\
-+ printk(format "\n" , ## args); \
-+ } while (0)
-+#define IP_SET_ASSERT(x) \
-+ do { \
-+ if (!(x)) \
-+ printk("IP_SET_ASSERT: %s:%i(%s)\n", \
-+ __FILE__, __LINE__, __FUNCTION__); \
-+ } while (0)
-+#else
-+#define DP(format, args...)
-+#define IP_SET_ASSERT(x)
-+#endif
-+
-+struct ip_set;
-+
-+/*
-+ * The ip_set_type definition - one per set type, e.g. "ipmap".
-+ *
-+ * Each individual set has a pointer, set->type, going to one
-+ * of these structures. Function pointers inside the structure implement
-+ * the real behaviour of the sets.
-+ *
-+ * If not mentioned differently, the implementation behind the function
-+ * pointers of a set_type, is expected to return 0 if ok, and a negative
-+ * errno (e.g. -EINVAL) on error.
-+ */
-+struct ip_set_type {
-+ struct list_head list; /* next in list of set types */
-+
-+ /* test for IP in set (kernel: iptables -m set src|dst)
-+ * return 0 if not in set, 1 if in set.
-+ */
-+ int (*testip_kernel) (struct ip_set *set,
-+ const struct sk_buff * skb,
-+ u_int32_t flags,
-+ ip_set_ip_t *ip);
-+
-+ /* test for IP in set (userspace: ipset -T set IP)
-+ * return 0 if not in set, 1 if in set.
-+ */
-+ int (*testip) (struct ip_set *set,
-+ const void *data, size_t size,
-+ ip_set_ip_t *ip);
-+
-+ /*
-+ * Size of the data structure passed by when
-+ * adding/deletin/testing an entry.
-+ */
-+ size_t reqsize;
-+
-+ /* Add IP into set (userspace: ipset -A set IP)
-+ * Return -EEXIST if the address is already in the set,
-+ * and -ERANGE if the address lies outside the set bounds.
-+ * If the address was not already in the set, 0 is returned.
-+ */
-+ int (*addip) (struct ip_set *set,
-+ const void *data, size_t size,
-+ ip_set_ip_t *ip);
-+
-+ /* Add IP into set (kernel: iptables ... -j SET set src|dst)
-+ * Return -EEXIST if the address is already in the set,
-+ * and -ERANGE if the address lies outside the set bounds.
-+ * If the address was not already in the set, 0 is returned.
-+ */
-+ int (*addip_kernel) (struct ip_set *set,
-+ const struct sk_buff * skb,
-+ u_int32_t flags,
-+ ip_set_ip_t *ip);
-+
-+ /* remove IP from set (userspace: ipset -D set --entry x)
-+ * Return -EEXIST if the address is NOT in the set,
-+ * and -ERANGE if the address lies outside the set bounds.
-+ * If the address really was in the set, 0 is returned.
-+ */
-+ int (*delip) (struct ip_set *set,
-+ const void *data, size_t size,
-+ ip_set_ip_t *ip);
-+
-+ /* remove IP from set (kernel: iptables ... -j SET --entry x)
-+ * Return -EEXIST if the address is NOT in the set,
-+ * and -ERANGE if the address lies outside the set bounds.
-+ * If the address really was in the set, 0 is returned.
-+ */
-+ int (*delip_kernel) (struct ip_set *set,
-+ const struct sk_buff * skb,
-+ u_int32_t flags,
-+ ip_set_ip_t *ip);
-+
-+ /* new set creation - allocated type specific items
-+ */
-+ int (*create) (struct ip_set *set,
-+ const void *data, size_t size);
-+
-+ /* retry the operation after successfully tweaking the set
-+ */
-+ int (*retry) (struct ip_set *set);
-+
-+ /* set destruction - free type specific items
-+ * There is no return value.
-+ * Can be called only when child sets are destroyed.
-+ */
-+ void (*destroy) (struct ip_set *set);
-+
-+ /* set flushing - reset all bits in the set, or something similar.
-+ * There is no return value.
-+ */
-+ void (*flush) (struct ip_set *set);
-+
-+ /* Listing: size needed for header
-+ */
-+ size_t header_size;
-+
-+ /* Listing: Get the header
-+ *
-+ * Fill in the information in "data".
-+ * This function is always run after list_header_size() under a
-+ * writelock on the set. Therefor is the length of "data" always
-+ * correct.
-+ */
-+ void (*list_header) (const struct ip_set *set,
-+ void *data);
-+
-+ /* Listing: Get the size for the set members
-+ */
-+ int (*list_members_size) (const struct ip_set *set);
-+
-+ /* Listing: Get the set members
-+ *
-+ * Fill in the information in "data".
-+ * This function is always run after list_member_size() under a
-+ * writelock on the set. Therefor is the length of "data" always
-+ * correct.
-+ */
-+ void (*list_members) (const struct ip_set *set,
-+ void *data);
-+
-+ char typename[IP_SET_MAXNAMELEN];
-+ char typecode;
-+ int protocol_version;
-+
-+ /* Set this to THIS_MODULE if you are a module, otherwise NULL */
-+ struct module *me;
-+};
-+
-+extern int ip_set_register_set_type(struct ip_set_type *set_type);
-+extern void ip_set_unregister_set_type(struct ip_set_type *set_type);
-+
-+/* A generic ipset */
-+struct ip_set {
-+ char name[IP_SET_MAXNAMELEN]; /* the name of the set */
-+ rwlock_t lock; /* lock for concurrency control */
-+ ip_set_id_t id; /* set id for swapping */
-+ ip_set_id_t binding; /* default binding for the set */
-+ atomic_t ref; /* in kernel and in hash references */
-+ struct ip_set_type *type; /* the set types */
-+ void *data; /* pooltype specific data */
-+};
-+
-+/* Structure to bind set elements to sets */
-+struct ip_set_hash {
-+ struct list_head list; /* list of clashing entries in hash */
-+ ip_set_ip_t ip; /* ip from set */
-+ ip_set_id_t id; /* set id */
-+ ip_set_id_t binding; /* set we bind the element to */
-+};
-+
-+/* register and unregister set references */
-+extern ip_set_id_t ip_set_get_byname(const char name[IP_SET_MAXNAMELEN]);
-+extern ip_set_id_t ip_set_get_byindex(ip_set_id_t id);
-+extern void ip_set_put(ip_set_id_t id);
-+
-+/* API for iptables set match, and SET target */
-+extern void ip_set_addip_kernel(ip_set_id_t id,
-+ const struct sk_buff *skb,
-+ const u_int32_t *flags);
-+extern void ip_set_delip_kernel(ip_set_id_t id,
-+ const struct sk_buff *skb,
-+ const u_int32_t *flags);
-+extern int ip_set_testip_kernel(ip_set_id_t id,
-+ const struct sk_buff *skb,
-+ const u_int32_t *flags);
-+
-+#endif /* __KERNEL__ */
-+
-+#endif /*_IP_SET_H*/
-diff -Naur linux-old/include/linux/netfilter_ipv4/ip_set_iphash.h linux-new/include/linux/netfilter_ipv4/ip_set_iphash.h
---- linux-old/include/linux/netfilter_ipv4/ip_set_iphash.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/include/linux/netfilter_ipv4/ip_set_iphash.h 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,30 @@
-+#ifndef __IP_SET_IPHASH_H
-+#define __IP_SET_IPHASH_H
-+
-+#include <linux/netfilter_ipv4/ip_set.h>
-+
-+#define SETTYPE_NAME "iphash"
-+#define MAX_RANGE 0x0000FFFF
-+
-+struct ip_set_iphash {
-+ ip_set_ip_t *members; /* the iphash proper */
-+ uint32_t initval; /* initval for jhash_1word */
-+ uint32_t prime; /* prime for double hashing */
-+ uint32_t hashsize; /* hash size */
-+ uint16_t probes; /* max number of probes */
-+ uint16_t resize; /* resize factor in percent */
-+ ip_set_ip_t netmask; /* netmask */
-+};
-+
-+struct ip_set_req_iphash_create {
-+ uint32_t hashsize;
-+ uint16_t probes;
-+ uint16_t resize;
-+ ip_set_ip_t netmask;
-+};
-+
-+struct ip_set_req_iphash {
-+ ip_set_ip_t ip;
-+};
-+
-+#endif /* __IP_SET_IPHASH_H */
-diff -Naur linux-old/include/linux/netfilter_ipv4/ip_set_ipmap.h linux-new/include/linux/netfilter_ipv4/ip_set_ipmap.h
---- linux-old/include/linux/netfilter_ipv4/ip_set_ipmap.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/include/linux/netfilter_ipv4/ip_set_ipmap.h 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,56 @@
-+#ifndef __IP_SET_IPMAP_H
-+#define __IP_SET_IPMAP_H
-+
-+#include <linux/netfilter_ipv4/ip_set.h>
-+
-+#define SETTYPE_NAME "ipmap"
-+#define MAX_RANGE 0x0000FFFF
-+
-+struct ip_set_ipmap {
-+ void *members; /* the ipmap proper */
-+ ip_set_ip_t first_ip; /* host byte order, included in range */
-+ ip_set_ip_t last_ip; /* host byte order, included in range */
-+ ip_set_ip_t netmask; /* subnet netmask */
-+ ip_set_ip_t sizeid; /* size of set in IPs */
-+ u_int16_t hosts; /* number of hosts in a subnet */
-+};
-+
-+struct ip_set_req_ipmap_create {
-+ ip_set_ip_t from;
-+ ip_set_ip_t to;
-+ ip_set_ip_t netmask;
-+};
-+
-+struct ip_set_req_ipmap {
-+ ip_set_ip_t ip;
-+};
-+
-+unsigned int
-+mask_to_bits(ip_set_ip_t mask)
-+{
-+ unsigned int bits = 32;
-+ ip_set_ip_t maskaddr;
-+
-+ if (mask == 0xFFFFFFFF)
-+ return bits;
-+
-+ maskaddr = 0xFFFFFFFE;
-+ while (--bits >= 0 && maskaddr != mask)
-+ maskaddr <<= 1;
-+
-+ return bits;
-+}
-+
-+ip_set_ip_t
-+range_to_mask(ip_set_ip_t from, ip_set_ip_t to, unsigned int *bits)
-+{
-+ ip_set_ip_t mask = 0xFFFFFFFE;
-+
-+ *bits = 32;
-+ while (--(*bits) >= 0 && mask && (to & mask) != from)
-+ mask <<= 1;
-+
-+ return mask;
-+}
-+
-+#endif /* __IP_SET_IPMAP_H */
-diff -Naur linux-old/include/linux/netfilter_ipv4/ip_set_iptree.h linux-new/include/linux/netfilter_ipv4/ip_set_iptree.h
---- linux-old/include/linux/netfilter_ipv4/ip_set_iptree.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/include/linux/netfilter_ipv4/ip_set_iptree.h 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,39 @@
-+#ifndef __IP_SET_IPTREE_H
-+#define __IP_SET_IPTREE_H
-+
-+#include <linux/netfilter_ipv4/ip_set.h>
-+
-+#define SETTYPE_NAME "iptree"
-+#define MAX_RANGE 0x0000FFFF
-+
-+struct ip_set_iptreed {
-+ unsigned long expires[255]; /* x.x.x.ADDR */
-+};
-+
-+struct ip_set_iptreec {
-+ struct ip_set_iptreed *tree[255]; /* x.x.ADDR.* */
-+};
-+
-+struct ip_set_iptreeb {
-+ struct ip_set_iptreec *tree[255]; /* x.ADDR.*.* */
-+};
-+
-+struct ip_set_iptree {
-+ unsigned int timeout;
-+ unsigned int gc_interval;
-+#ifdef __KERNEL__
-+ struct timer_list gc;
-+ struct ip_set_iptreeb *tree[255]; /* ADDR.*.*.* */
-+#endif
-+};
-+
-+struct ip_set_req_iptree_create {
-+ unsigned int timeout;
-+};
-+
-+struct ip_set_req_iptree {
-+ ip_set_ip_t ip;
-+ unsigned int timeout;
-+};
-+
-+#endif /* __IP_SET_IPTREE_H */
-diff -Naur linux-old/include/linux/netfilter_ipv4/ip_set_jhash.h linux-new/include/linux/netfilter_ipv4/ip_set_jhash.h
---- linux-old/include/linux/netfilter_ipv4/ip_set_jhash.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/include/linux/netfilter_ipv4/ip_set_jhash.h 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,148 @@
-+#ifndef _LINUX_IPSET_JHASH_H
-+#define _LINUX_IPSET_JHASH_H
-+
-+/* This is a copy of linux/jhash.h but the types u32/u8 are changed
-+ * to __u32/__u8 so that the header file can be included into
-+ * userspace code as well. Jozsef Kadlecsik (kadlec@blackhole.kfki.hu)
-+ */
-+
-+/* jhash.h: Jenkins hash support.
-+ *
-+ * Copyright (C) 1996 Bob Jenkins (bob_jenkins@burtleburtle.net)
-+ *
-+ * http://burtleburtle.net/bob/hash/
-+ *
-+ * These are the credits from Bob's sources:
-+ *
-+ * lookup2.c, by Bob Jenkins, December 1996, Public Domain.
-+ * hash(), hash2(), hash3, and mix() are externally useful functions.
-+ * Routines to test the hash are included if SELF_TEST is defined.
-+ * You can use this free for any purpose. It has no warranty.
-+ *
-+ * Copyright (C) 2003 David S. Miller (davem@redhat.com)
-+ *
-+ * I've modified Bob's hash to be useful in the Linux kernel, and
-+ * any bugs present are surely my fault. -DaveM
-+ */
-+
-+/* NOTE: Arguments are modified. */
-+#define __jhash_mix(a, b, c) \
-+{ \
-+ a -= b; a -= c; a ^= (c>>13); \
-+ b -= c; b -= a; b ^= (a<<8); \
-+ c -= a; c -= b; c ^= (b>>13); \
-+ a -= b; a -= c; a ^= (c>>12); \
-+ b -= c; b -= a; b ^= (a<<16); \
-+ c -= a; c -= b; c ^= (b>>5); \
-+ a -= b; a -= c; a ^= (c>>3); \
-+ b -= c; b -= a; b ^= (a<<10); \
-+ c -= a; c -= b; c ^= (b>>15); \
-+}
-+
-+/* The golden ration: an arbitrary value */
-+#define JHASH_GOLDEN_RATIO 0x9e3779b9
-+
-+/* The most generic version, hashes an arbitrary sequence
-+ * of bytes. No alignment or length assumptions are made about
-+ * the input key.
-+ */
-+static inline __u32 jhash(void *key, __u32 length, __u32 initval)
-+{
-+ __u32 a, b, c, len;
-+ __u8 *k = key;
-+
-+ len = length;
-+ a = b = JHASH_GOLDEN_RATIO;
-+ c = initval;
-+
-+ while (len >= 12) {
-+ a += (k[0] +((__u32)k[1]<<8) +((__u32)k[2]<<16) +((__u32)k[3]<<24));
-+ b += (k[4] +((__u32)k[5]<<8) +((__u32)k[6]<<16) +((__u32)k[7]<<24));
-+ c += (k[8] +((__u32)k[9]<<8) +((__u32)k[10]<<16)+((__u32)k[11]<<24));
-+
-+ __jhash_mix(a,b,c);
-+
-+ k += 12;
-+ len -= 12;
-+ }
-+
-+ c += length;
-+ switch (len) {
-+ case 11: c += ((__u32)k[10]<<24);
-+ case 10: c += ((__u32)k[9]<<16);
-+ case 9 : c += ((__u32)k[8]<<8);
-+ case 8 : b += ((__u32)k[7]<<24);
-+ case 7 : b += ((__u32)k[6]<<16);
-+ case 6 : b += ((__u32)k[5]<<8);
-+ case 5 : b += k[4];
-+ case 4 : a += ((__u32)k[3]<<24);
-+ case 3 : a += ((__u32)k[2]<<16);
-+ case 2 : a += ((__u32)k[1]<<8);
-+ case 1 : a += k[0];
-+ };
-+
-+ __jhash_mix(a,b,c);
-+
-+ return c;
-+}
-+
-+/* A special optimized version that handles 1 or more of __u32s.
-+ * The length parameter here is the number of __u32s in the key.
-+ */
-+static inline __u32 jhash2(__u32 *k, __u32 length, __u32 initval)
-+{
-+ __u32 a, b, c, len;
-+
-+ a = b = JHASH_GOLDEN_RATIO;
-+ c = initval;
-+ len = length;
-+
-+ while (len >= 3) {
-+ a += k[0];
-+ b += k[1];
-+ c += k[2];
-+ __jhash_mix(a, b, c);
-+ k += 3; len -= 3;
-+ }
-+
-+ c += length * 4;
-+
-+ switch (len) {
-+ case 2 : b += k[1];
-+ case 1 : a += k[0];
-+ };
-+
-+ __jhash_mix(a,b,c);
-+
-+ return c;
-+}
-+
-+
-+/* A special ultra-optimized versions that knows they are hashing exactly
-+ * 3, 2 or 1 word(s).
-+ *
-+ * NOTE: In partilar the "c += length; __jhash_mix(a,b,c);" normally
-+ * done at the end is not done here.
-+ */
-+static inline __u32 jhash_3words(__u32 a, __u32 b, __u32 c, __u32 initval)
-+{
-+ a += JHASH_GOLDEN_RATIO;
-+ b += JHASH_GOLDEN_RATIO;
-+ c += initval;
-+
-+ __jhash_mix(a, b, c);
-+
-+ return c;
-+}
-+
-+static inline __u32 jhash_2words(__u32 a, __u32 b, __u32 initval)
-+{
-+ return jhash_3words(a, b, 0, initval);
-+}
-+
-+static inline __u32 jhash_1word(__u32 a, __u32 initval)
-+{
-+ return jhash_3words(a, 0, 0, initval);
-+}
-+
-+#endif /* _LINUX_IPSET_JHASH_H */
-diff -Naur linux-old/include/linux/netfilter_ipv4/ip_set_macipmap.h linux-new/include/linux/netfilter_ipv4/ip_set_macipmap.h
---- linux-old/include/linux/netfilter_ipv4/ip_set_macipmap.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/include/linux/netfilter_ipv4/ip_set_macipmap.h 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,38 @@
-+#ifndef __IP_SET_MACIPMAP_H
-+#define __IP_SET_MACIPMAP_H
-+
-+#include <linux/netfilter_ipv4/ip_set.h>
-+
-+#define SETTYPE_NAME "macipmap"
-+#define MAX_RANGE 0x0000FFFF
-+
-+/* general flags */
-+#define IPSET_MACIP_MATCHUNSET 1
-+
-+/* per ip flags */
-+#define IPSET_MACIP_ISSET 1
-+
-+struct ip_set_macipmap {
-+ void *members; /* the macipmap proper */
-+ ip_set_ip_t first_ip; /* host byte order, included in range */
-+ ip_set_ip_t last_ip; /* host byte order, included in range */
-+ u_int32_t flags;
-+};
-+
-+struct ip_set_req_macipmap_create {
-+ ip_set_ip_t from;
-+ ip_set_ip_t to;
-+ u_int32_t flags;
-+};
-+
-+struct ip_set_req_macipmap {
-+ ip_set_ip_t ip;
-+ unsigned char ethernet[ETH_ALEN];
-+};
-+
-+struct ip_set_macip {
-+ unsigned short flags;
-+ unsigned char ethernet[ETH_ALEN];
-+};
-+
-+#endif /* __IP_SET_MACIPMAP_H */
-diff -Naur linux-old/include/linux/netfilter_ipv4/ip_set_malloc.h linux-new/include/linux/netfilter_ipv4/ip_set_malloc.h
---- linux-old/include/linux/netfilter_ipv4/ip_set_malloc.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/include/linux/netfilter_ipv4/ip_set_malloc.h 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,27 @@
-+#ifndef _IP_SET_MALLOC_H
-+#define _IP_SET_MALLOC_H
-+
-+#ifdef __KERNEL__
-+
-+/* Memory allocation and deallocation */
-+static size_t max_malloc_size = 131072; /* Guaranteed: slab.c */
-+
-+static inline void * ip_set_malloc(size_t bytes)
-+{
-+ if (bytes > max_malloc_size)
-+ return vmalloc(bytes);
-+ else
-+ return kmalloc(bytes, GFP_KERNEL);
-+}
-+
-+static inline void ip_set_free(void * data, size_t bytes)
-+{
-+ if (bytes > max_malloc_size)
-+ vfree(data);
-+ else
-+ kfree(data);
-+}
-+
-+#endif /* __KERNEL__ */
-+
-+#endif /*_IP_SET_MALLOC_H*/
-diff -Naur linux-old/include/linux/netfilter_ipv4/ip_set_nethash.h linux-new/include/linux/netfilter_ipv4/ip_set_nethash.h
---- linux-old/include/linux/netfilter_ipv4/ip_set_nethash.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/include/linux/netfilter_ipv4/ip_set_nethash.h 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,55 @@
-+#ifndef __IP_SET_NETHASH_H
-+#define __IP_SET_NETHASH_H
-+
-+#include <linux/netfilter_ipv4/ip_set.h>
-+
-+#define SETTYPE_NAME "nethash"
-+#define MAX_RANGE 0x0000FFFF
-+
-+struct ip_set_nethash {
-+ ip_set_ip_t *members; /* the nethash proper */
-+ uint32_t initval; /* initval for jhash_1word */
-+ uint32_t prime; /* prime for double hashing */
-+ uint32_t hashsize; /* hash size */
-+ uint16_t probes; /* max number of probes */
-+ uint16_t resize; /* resize factor in percent */
-+ unsigned char cidr[30]; /* CIDR sizes */
-+};
-+
-+struct ip_set_req_nethash_create {
-+ uint32_t hashsize;
-+ uint16_t probes;
-+ uint16_t resize;
-+};
-+
-+struct ip_set_req_nethash {
-+ ip_set_ip_t ip;
-+ unsigned char cidr;
-+};
-+
-+static unsigned char shifts[] = {255, 253, 249, 241, 225, 193, 129, 1};
-+
-+static inline ip_set_ip_t
-+pack(ip_set_ip_t ip, unsigned char cidr)
-+{
-+ ip_set_ip_t addr, *paddr = &addr;
-+ unsigned char n, t, *a;
-+
-+ addr = htonl(ip & (0xFFFFFFFF << (32 - (cidr))));
-+#ifdef __KERNEL__
-+ DP("ip:%u.%u.%u.%u/%u", NIPQUAD(addr), cidr);
-+#endif
-+ n = cidr / 8;
-+ t = cidr % 8;
-+ a = &((unsigned char *)paddr)[n];
-+ *a = *a /(1 << (8 - t)) + shifts[t];
-+#ifdef __KERNEL__
-+ DP("n: %u, t: %u, a: %u", n, t, *a);
-+ DP("ip:%u.%u.%u.%u/%u, %u.%u.%u.%u",
-+ HIPQUAD(ip), cidr, NIPQUAD(addr));
-+#endif
-+
-+ return ntohl(addr);
-+}
-+
-+#endif /* __IP_SET_NETHASH_H */
-diff -Naur linux-old/include/linux/netfilter_ipv4/ip_set_portmap.h linux-new/include/linux/netfilter_ipv4/ip_set_portmap.h
---- linux-old/include/linux/netfilter_ipv4/ip_set_portmap.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/include/linux/netfilter_ipv4/ip_set_portmap.h 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,25 @@
-+#ifndef __IP_SET_PORTMAP_H
-+#define __IP_SET_PORTMAP_H
-+
-+#include <linux/netfilter_ipv4/ip_set.h>
-+
-+#define SETTYPE_NAME "portmap"
-+#define MAX_RANGE 0x0000FFFF
-+#define INVALID_PORT (MAX_RANGE + 1)
-+
-+struct ip_set_portmap {
-+ void *members; /* the portmap proper */
-+ ip_set_ip_t first_port; /* host byte order, included in range */
-+ ip_set_ip_t last_port; /* host byte order, included in range */
-+};
-+
-+struct ip_set_req_portmap_create {
-+ ip_set_ip_t from;
-+ ip_set_ip_t to;
-+};
-+
-+struct ip_set_req_portmap {
-+ ip_set_ip_t port;
-+};
-+
-+#endif /* __IP_SET_PORTMAP_H */
-diff -Naur linux-old/include/linux/netfilter_ipv4/ip_set_prime.h linux-new/include/linux/netfilter_ipv4/ip_set_prime.h
---- linux-old/include/linux/netfilter_ipv4/ip_set_prime.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/include/linux/netfilter_ipv4/ip_set_prime.h 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,34 @@
-+#ifndef __IP_SET_PRIME_H
-+#define __IP_SET_PRIME_H
-+
-+static inline unsigned make_prime_bound(unsigned nr)
-+{
-+ unsigned long long nr64 = nr;
-+ unsigned long long x = 1;
-+ nr = 1;
-+ while (x <= nr64) { x <<= 2; nr <<= 1; }
-+ return nr;
-+}
-+
-+static inline int make_prime_check(unsigned nr)
-+{
-+ unsigned x = 3;
-+ unsigned b = make_prime_bound(nr);
-+ while (x <= b) {
-+ if (0 == (nr % x)) return 0;
-+ x += 2;
-+ }
-+ return 1;
-+}
-+
-+static unsigned make_prime(unsigned nr)
-+{
-+ if (0 == (nr & 1)) nr--;
-+ while (nr > 1) {
-+ if (make_prime_check(nr)) return nr;
-+ nr -= 2;
-+ }
-+ return 2;
-+}
-+
-+#endif /* __IP_SET_PRIME_H */
-diff -Naur linux-old/include/linux/netfilter_ipv4/ipt_set.h linux-new/include/linux/netfilter_ipv4/ipt_set.h
---- linux-old/include/linux/netfilter_ipv4/ipt_set.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/include/linux/netfilter_ipv4/ipt_set.h 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,21 @@
-+#ifndef _IPT_SET_H
-+#define _IPT_SET_H
-+
-+#include <linux/netfilter_ipv4/ip_set.h>
-+
-+struct ipt_set_info {
-+ ip_set_id_t index;
-+ u_int32_t flags[IP_SET_MAX_BINDINGS + 1];
-+};
-+
-+/* match info */
-+struct ipt_set_info_match {
-+ struct ipt_set_info match_set;
-+};
-+
-+struct ipt_set_info_target {
-+ struct ipt_set_info add_set;
-+ struct ipt_set_info del_set;
-+};
-+
-+#endif /*_IPT_SET_H*/
-diff -Naur linux-old/net/ipv4/netfilter/Config.in linux-new/net/ipv4/netfilter/Config.in
---- linux-old/net/ipv4/netfilter/Config.in 2005-07-23 23:34:46.000000000 +0200
-+++ linux-new/net/ipv4/netfilter/Config.in 2005-08-10 22:13:01.000000000 +0200
-@@ -21,6 +21,20 @@
- if [ "$CONFIG_IP_NF_IPTABLES" != "n" ]; then
- # The simple matches.
- dep_tristate ' limit match support' CONFIG_IP_NF_MATCH_LIMIT $CONFIG_IP_NF_IPTABLES
-+
-+ dep_tristate ' IP set support' CONFIG_IP_NF_SET $CONFIG_IP_NF_IPTABLES
-+ if [ "$CONFIG_IP_NF_SET" != "n" ]; then
-+ int ' Maximum number of sets' CONFIG_IP_NF_SET_MAX 256
-+ int ' Hash size for bindings of IP sets' CONFIG_IP_NF_SET_HASHSIZE 1024
-+ dep_tristate ' set match support' CONFIG_IP_NF_MATCH_SET $CONFIG_IP_NF_SET
-+ dep_tristate ' SET target support' CONFIG_IP_NF_TARGET_SET $CONFIG_IP_NF_SET
-+ dep_tristate ' ipmap set type support' CONFIG_IP_NF_SET_IPMAP $CONFIG_IP_NF_SET
-+ dep_tristate ' portmap set type support' CONFIG_IP_NF_SET_PORTMAP $CONFIG_IP_NF_SET
-+ dep_tristate ' macipmap set type support' CONFIG_IP_NF_SET_MACIPMAP $CONFIG_IP_NF_SET
-+ dep_tristate ' iphash set type support' CONFIG_IP_NF_SET_IPHASH $CONFIG_IP_NF_SET
-+ dep_tristate ' nethash set type support' CONFIG_IP_NF_SET_NETHASH $CONFIG_IP_NF_SET
-+ dep_tristate ' iptree set type support' CONFIG_IP_NF_SET_IPTREE $CONFIG_IP_NF_SET
-+ fi
- dep_tristate ' MAC address match support' CONFIG_IP_NF_MATCH_MAC $CONFIG_IP_NF_IPTABLES
- dep_tristate ' Packet type match support' CONFIG_IP_NF_MATCH_PKTTYPE $CONFIG_IP_NF_IPTABLES
- dep_tristate ' netfilter MARK match support' CONFIG_IP_NF_MATCH_MARK $CONFIG_IP_NF_IPTABLES
-diff -Naur linux-old/net/ipv4/netfilter/ip_set.c linux-new/net/ipv4/netfilter/ip_set.c
---- linux-old/net/ipv4/netfilter/ip_set.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/net/ipv4/netfilter/ip_set.c 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,2002 @@
-+/* Copyright (C) 2000-2002 Joakim Axelsson <gozem@linux.nu>
-+ * Patrick Schaaf <bof@bof.de>
-+ * Copyright (C) 2003-2004 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+/* Kernel module for IP set management */
-+
-+#include <linux/config.h>
-+#include <linux/module.h>
-+#include <linux/kmod.h>
-+#include <linux/ip.h>
-+#include <linux/skbuff.h>
-+#include <linux/random.h>
-+#include <linux/jhash.h>
-+#include <linux/netfilter_ipv4/ip_tables.h>
-+#include <linux/errno.h>
-+#include <asm/uaccess.h>
-+#include <asm/bitops.h>
-+#include <asm/softirq.h>
-+#include <asm/semaphore.h>
-+#include <linux/spinlock.h>
-+#include <linux/vmalloc.h>
-+
-+#define ASSERT_READ_LOCK(x) /* dont use that */
-+#define ASSERT_WRITE_LOCK(x)
-+#include <linux/netfilter_ipv4/listhelp.h>
-+#include <linux/netfilter_ipv4/ip_set.h>
-+
-+static struct list_head set_type_list; /* all registered sets */
-+static struct ip_set **ip_set_list; /* all individual sets */
-+static DECLARE_RWLOCK(ip_set_lock); /* protects the lists and the hash */
-+static DECLARE_MUTEX(ip_set_app_mutex); /* serializes user access */
-+static ip_set_id_t ip_set_max = CONFIG_IP_NF_SET_MAX;
-+static ip_set_id_t ip_set_bindings_hash_size = CONFIG_IP_NF_SET_HASHSIZE;
-+static struct list_head *ip_set_hash; /* hash of bindings */
-+static unsigned int ip_set_hash_random; /* random seed */
-+
-+/* Arrgh */
-+#ifdef MODULE
-+#define __MOD_INC(foo) __MOD_INC_USE_COUNT(foo)
-+#define __MOD_DEC(foo) __MOD_DEC_USE_COUNT(foo)
-+#define __MOD_INC_SELF MOD_INC_USE_COUNT
-+#define __MOD_DEC_SELF MOD_DEC_USE_COUNT
-+#else
-+#define __MOD_INC(foo)
-+#define __MOD_DEC(foo)
-+#define __MOD_INC_SELF
-+#define __MOD_DEC_SELF
-+#endif
-+
-+/*
-+ * Sets are identified either by the index in ip_set_list or by id.
-+ * The id never changes and is used to find a key in the hash.
-+ * The index may change by swapping and used at all other places
-+ * (set/SET netfilter modules, binding value, etc.)
-+ *
-+ * Userspace requests are serialized by ip_set_mutex and sets can
-+ * be deleted only from userspace. Therefore ip_set_list locking
-+ * must obey the following rules:
-+ *
-+ * - kernel requests: read and write locking mandatory
-+ * - user requests: read locking optional, write locking mandatory
-+ */
-+
-+static inline void
-+__ip_set_get(ip_set_id_t index)
-+{
-+ atomic_inc(&ip_set_list[index]->ref);
-+}
-+
-+static inline void
-+__ip_set_put(ip_set_id_t index)
-+{
-+ atomic_dec(&ip_set_list[index]->ref);
-+}
-+
-+/*
-+ * Binding routines
-+ */
-+
-+static inline int
-+ip_hash_cmp(const struct ip_set_hash *set_hash,
-+ ip_set_id_t id, ip_set_ip_t ip)
-+{
-+ return set_hash->id == id && set_hash->ip == ip;
-+}
-+
-+static ip_set_id_t
-+ip_set_find_in_hash(ip_set_id_t id, ip_set_ip_t ip)
-+{
-+ u_int32_t key = jhash_2words(id, ip, ip_set_hash_random)
-+ % ip_set_bindings_hash_size;
-+ struct ip_set_hash *set_hash;
-+
-+ MUST_BE_READ_LOCKED(&ip_set_lock);
-+ IP_SET_ASSERT(ip_set_list[id]);
-+ DP("set: %s, ip: %u.%u.%u.%u", ip_set_list[id]->name, HIPQUAD(ip));
-+
-+ set_hash = LIST_FIND(&ip_set_hash[key], ip_hash_cmp,
-+ struct ip_set_hash *, id, ip);
-+
-+ DP("set: %s, ip: %u.%u.%u.%u, binding: %s", ip_set_list[id]->name,
-+ HIPQUAD(ip),
-+ set_hash != NULL ? ip_set_list[set_hash->binding]->name : "");
-+
-+ return (set_hash != NULL ? set_hash->binding : IP_SET_INVALID_ID);
-+}
-+
-+static inline void
-+__set_hash_del(struct ip_set_hash *set_hash)
-+{
-+ MUST_BE_WRITE_LOCKED(&ip_set_lock);
-+ IP_SET_ASSERT(ip_set_list[set_hash->binding]);
-+
-+ __ip_set_put(set_hash->binding);
-+ list_del(&set_hash->list);
-+ kfree(set_hash);
-+}
-+
-+static int
-+ip_set_hash_del(ip_set_id_t id, ip_set_ip_t ip)
-+{
-+ u_int32_t key = jhash_2words(id, ip, ip_set_hash_random)
-+ % ip_set_bindings_hash_size;
-+ struct ip_set_hash *set_hash;
-+
-+ IP_SET_ASSERT(ip_set_list[id]);
-+ DP("set: %s, ip: %u.%u.%u.%u", ip_set_list[id]->name, HIPQUAD(ip));
-+ WRITE_LOCK(&ip_set_lock);
-+ set_hash = LIST_FIND(&ip_set_hash[key], ip_hash_cmp,
-+ struct ip_set_hash *, id, ip);
-+ DP("set: %s, ip: %u.%u.%u.%u, binding: %s", ip_set_list[id]->name,
-+ HIPQUAD(ip),
-+ set_hash != NULL ? ip_set_list[set_hash->binding]->name : "");
-+
-+ if (set_hash != NULL)
-+ __set_hash_del(set_hash);
-+ WRITE_UNLOCK(&ip_set_lock);
-+ return 0;
-+}
-+
-+static int
-+ip_set_hash_add(ip_set_id_t id, ip_set_ip_t ip, ip_set_id_t binding)
-+{
-+ u_int32_t key = jhash_2words(id, ip, ip_set_hash_random)
-+ % ip_set_bindings_hash_size;
-+ struct ip_set_hash *set_hash;
-+ int ret = 0;
-+
-+ IP_SET_ASSERT(ip_set_list[id]);
-+ IP_SET_ASSERT(ip_set_list[binding]);
-+ DP("set: %s, ip: %u.%u.%u.%u, binding: %s", ip_set_list[id]->name,
-+ HIPQUAD(ip), ip_set_list[binding]->name);
-+ WRITE_LOCK(&ip_set_lock);
-+ set_hash = LIST_FIND(&ip_set_hash[key], ip_hash_cmp,
-+ struct ip_set_hash *, id, ip);
-+ if (!set_hash) {
-+ set_hash = kmalloc(sizeof(struct ip_set_hash), GFP_KERNEL);
-+ if (!set_hash) {
-+ ret = -ENOMEM;
-+ goto unlock;
-+ }
-+ INIT_LIST_HEAD(&set_hash->list);
-+ set_hash->id = id;
-+ set_hash->ip = ip;
-+ list_add(&ip_set_hash[key], &set_hash->list);
-+ } else {
-+ IP_SET_ASSERT(ip_set_list[set_hash->binding]);
-+ DP("overwrite binding: %s",
-+ ip_set_list[set_hash->binding]->name);
-+ __ip_set_put(set_hash->binding);
-+ }
-+ set_hash->binding = binding;
-+ __ip_set_get(set_hash->binding);
-+ unlock:
-+ WRITE_UNLOCK(&ip_set_lock);
-+ return ret;
-+}
-+
-+#define FOREACH_HASH_DO(fn, args...) \
-+({ \
-+ ip_set_id_t __key; \
-+ struct ip_set_hash *__set_hash; \
-+ \
-+ for (__key = 0; __key < ip_set_bindings_hash_size; __key++) { \
-+ list_for_each_entry(__set_hash, &ip_set_hash[__key], list) \
-+ fn(__set_hash , ## args); \
-+ } \
-+})
-+
-+#define FOREACH_HASH_RW_DO(fn, args...) \
-+({ \
-+ ip_set_id_t __key; \
-+ struct ip_set_hash *__set_hash, *__n; \
-+ \
-+ MUST_BE_WRITE_LOCKED(&ip_set_lock); \
-+ for (__key = 0; __key < ip_set_bindings_hash_size; __key++) { \
-+ list_for_each_entry_safe(__set_hash, __n, &ip_set_hash[__key], list)\
-+ fn(__set_hash , ## args); \
-+ } \
-+})
-+
-+/* Add, del and test set entries from kernel */
-+
-+#define follow_bindings(index, set, ip) \
-+((index = ip_set_find_in_hash((set)->id, ip)) != IP_SET_INVALID_ID \
-+ || (index = (set)->binding) != IP_SET_INVALID_ID)
-+
-+int
-+ip_set_testip_kernel(ip_set_id_t index,
-+ const struct sk_buff *skb,
-+ const u_int32_t *flags)
-+{
-+ struct ip_set *set;
-+ ip_set_ip_t ip;
-+ int res, i = 0;
-+
-+ IP_SET_ASSERT(flags[i]);
-+ READ_LOCK(&ip_set_lock);
-+ do {
-+ set = ip_set_list[index];
-+ IP_SET_ASSERT(set);
-+ DP("set %s, index %u", set->name, index);
-+ read_lock_bh(&set->lock);
-+ res = set->type->testip_kernel(set, skb, flags[i], &ip);
-+ read_unlock_bh(&set->lock);
-+ } while (res > 0
-+ && flags[++i]
-+ && follow_bindings(index, set, ip));
-+ READ_UNLOCK(&ip_set_lock);
-+
-+ return res;
-+}
-+
-+void
-+ip_set_addip_kernel(ip_set_id_t index,
-+ const struct sk_buff *skb,
-+ const u_int32_t *flags)
-+{
-+ struct ip_set *set;
-+ ip_set_ip_t ip;
-+ int res, i= 0;
-+
-+ IP_SET_ASSERT(flags[i]);
-+ retry:
-+ READ_LOCK(&ip_set_lock);
-+ do {
-+ set = ip_set_list[index];
-+ IP_SET_ASSERT(set);
-+ DP("set %s, index %u", set->name, index);
-+ write_lock_bh(&set->lock);
-+ res = set->type->addip_kernel(set, skb, flags[i], &ip);
-+ write_unlock_bh(&set->lock);
-+ } while ((res == 0 || res == -EEXIST)
-+ && flags[++i]
-+ && follow_bindings(index, set, ip));
-+ READ_UNLOCK(&ip_set_lock);
-+
-+ if (res == -EAGAIN
-+ && set->type->retry
-+ && (res = set->type->retry(set)) == 0)
-+ goto retry;
-+}
-+
-+void
-+ip_set_delip_kernel(ip_set_id_t index,
-+ const struct sk_buff *skb,
-+ const u_int32_t *flags)
-+{
-+ struct ip_set *set;
-+ ip_set_ip_t ip;
-+ int res, i = 0;
-+
-+ IP_SET_ASSERT(flags[i]);
-+ READ_LOCK(&ip_set_lock);
-+ do {
-+ set = ip_set_list[index];
-+ IP_SET_ASSERT(set);
-+ DP("set %s, index %u", set->name, index);
-+ write_lock_bh(&set->lock);
-+ res = set->type->delip_kernel(set, skb, flags[i], &ip);
-+ write_unlock_bh(&set->lock);
-+ } while ((res == 0 || res == -EEXIST)
-+ && flags[++i]
-+ && follow_bindings(index, set, ip));
-+ READ_UNLOCK(&ip_set_lock);
-+}
-+
-+/* Register and deregister settype */
-+
-+static inline int
-+set_type_equal(const struct ip_set_type *set_type, const char *str2)
-+{
-+ return !strncmp(set_type->typename, str2, IP_SET_MAXNAMELEN - 1);
-+}
-+
-+static inline struct ip_set_type *
-+find_set_type(const char *name)
-+{
-+ return LIST_FIND(&set_type_list,
-+ set_type_equal,
-+ struct ip_set_type *,
-+ name);
-+}
-+
-+int
-+ip_set_register_set_type(struct ip_set_type *set_type)
-+{
-+ int ret = 0;
-+
-+ if (set_type->protocol_version != IP_SET_PROTOCOL_VERSION) {
-+ ip_set_printk("'%s' uses wrong protocol version %u (want %u)",
-+ set_type->typename,
-+ set_type->protocol_version,
-+ IP_SET_PROTOCOL_VERSION);
-+ return -EINVAL;
-+ }
-+
-+ WRITE_LOCK(&ip_set_lock);
-+ if (find_set_type(set_type->typename)) {
-+ /* Duplicate! */
-+ ip_set_printk("'%s' already registered!",
-+ set_type->typename);
-+ ret = -EINVAL;
-+ goto unlock;
-+ }
-+ __MOD_INC_SELF;
-+ list_append(&set_type_list, set_type);
-+ DP("'%s' registered.", set_type->typename);
-+ unlock:
-+ WRITE_UNLOCK(&ip_set_lock);
-+ return ret;
-+}
-+
-+void
-+ip_set_unregister_set_type(struct ip_set_type *set_type)
-+{
-+ WRITE_LOCK(&ip_set_lock);
-+ if (!find_set_type(set_type->typename)) {
-+ ip_set_printk("'%s' not registered?",
-+ set_type->typename);
-+ goto unlock;
-+ }
-+ LIST_DELETE(&set_type_list, set_type);
-+ __MOD_DEC_SELF;
-+ DP("'%s' unregistered.", set_type->typename);
-+ unlock:
-+ WRITE_UNLOCK(&ip_set_lock);
-+
-+}
-+
-+/*
-+ * Userspace routines
-+ */
-+
-+/*
-+ * Find set by name, reference it once. The reference makes sure the
-+ * thing pointed to, does not go away under our feet. Drop the reference
-+ * later, using ip_set_put().
-+ */
-+ip_set_id_t
-+ip_set_get_byname(const char *name)
-+{
-+ ip_set_id_t i, index = IP_SET_INVALID_ID;
-+
-+ down(&ip_set_app_mutex);
-+ for (i = 0; i < ip_set_max; i++) {
-+ if (ip_set_list[i] != NULL
-+ && strcmp(ip_set_list[i]->name, name) == 0) {
-+ __ip_set_get(i);
-+ index = i;
-+ break;
-+ }
-+ }
-+ up(&ip_set_app_mutex);
-+ return index;
-+}
-+
-+/*
-+ * Find set by index, reference it once. The reference makes sure the
-+ * thing pointed to, does not go away under our feet. Drop the reference
-+ * later, using ip_set_put().
-+ */
-+ip_set_id_t
-+ip_set_get_byindex(ip_set_id_t index)
-+{
-+ down(&ip_set_app_mutex);
-+
-+ if (index >= ip_set_max)
-+ return IP_SET_INVALID_ID;
-+
-+ if (ip_set_list[index])
-+ __ip_set_get(index);
-+ else
-+ index = IP_SET_INVALID_ID;
-+
-+ up(&ip_set_app_mutex);
-+ return index;
-+}
-+
-+/*
-+ * If the given set pointer points to a valid set, decrement
-+ * reference count by 1. The caller shall not assume the index
-+ * to be valid, after calling this function.
-+ */
-+void ip_set_put(ip_set_id_t index)
-+{
-+ down(&ip_set_app_mutex);
-+ if (ip_set_list[index])
-+ __ip_set_put(index);
-+ up(&ip_set_app_mutex);
-+}
-+
-+/* Find a set by name or index */
-+static ip_set_id_t
-+ip_set_find_byname(const char *name)
-+{
-+ ip_set_id_t i, index = IP_SET_INVALID_ID;
-+
-+ for (i = 0; i < ip_set_max; i++) {
-+ if (ip_set_list[i] != NULL
-+ && strcmp(ip_set_list[i]->name, name) == 0) {
-+ index = i;
-+ break;
-+ }
-+ }
-+ return index;
-+}
-+
-+static ip_set_id_t
-+ip_set_find_byindex(ip_set_id_t index)
-+{
-+ if (index >= ip_set_max || ip_set_list[index] == NULL)
-+ index = IP_SET_INVALID_ID;
-+
-+ return index;
-+}
-+
-+/*
-+ * Add, del, test, bind and unbind
-+ */
-+
-+static inline int
-+__ip_set_testip(struct ip_set *set,
-+ const void *data,
-+ size_t size,
-+ ip_set_ip_t *ip)
-+{
-+ int res;
-+
-+ read_lock_bh(&set->lock);
-+ res = set->type->testip(set, data, size, ip);
-+ read_unlock_bh(&set->lock);
-+
-+ return res;
-+}
-+
-+static int
-+__ip_set_addip(ip_set_id_t index,
-+ const void *data,
-+ size_t size)
-+{
-+ struct ip_set *set = ip_set_list[index];
-+ ip_set_ip_t ip;
-+ int res;
-+
-+ IP_SET_ASSERT(set);
-+ do {
-+ write_lock_bh(&set->lock);
-+ res = set->type->addip(set, data, size, &ip);
-+ write_unlock_bh(&set->lock);
-+ } while (res == -EAGAIN
-+ && set->type->retry
-+ && (res = set->type->retry(set)) == 0);
-+
-+ return res;
-+}
-+
-+static int
-+ip_set_addip(ip_set_id_t index,
-+ const void *data,
-+ size_t size)
-+{
-+
-+ return __ip_set_addip(index,
-+ data + sizeof(struct ip_set_req_adt),
-+ size - sizeof(struct ip_set_req_adt));
-+}
-+
-+static int
-+ip_set_delip(ip_set_id_t index,
-+ const void *data,
-+ size_t size)
-+{
-+ struct ip_set *set = ip_set_list[index];
-+ ip_set_ip_t ip;
-+ int res;
-+
-+ IP_SET_ASSERT(set);
-+ write_lock_bh(&set->lock);
-+ res = set->type->delip(set,
-+ data + sizeof(struct ip_set_req_adt),
-+ size - sizeof(struct ip_set_req_adt),
-+ &ip);
-+ write_unlock_bh(&set->lock);
-+
-+ return res;
-+}
-+
-+static int
-+ip_set_testip(ip_set_id_t index,
-+ const void *data,
-+ size_t size)
-+{
-+ struct ip_set *set = ip_set_list[index];
-+ ip_set_ip_t ip;
-+ int res;
-+
-+ IP_SET_ASSERT(set);
-+ res = __ip_set_testip(set,
-+ data + sizeof(struct ip_set_req_adt),
-+ size - sizeof(struct ip_set_req_adt),
-+ &ip);
-+
-+ return (res > 0 ? -EEXIST : res);
-+}
-+
-+static int
-+ip_set_bindip(ip_set_id_t index,
-+ const void *data,
-+ size_t size)
-+{
-+ struct ip_set *set = ip_set_list[index];
-+ struct ip_set_req_bind *req_bind;
-+ ip_set_id_t binding;
-+ ip_set_ip_t ip;
-+ int res;
-+
-+ IP_SET_ASSERT(set);
-+ if (size < sizeof(struct ip_set_req_bind))
-+ return -EINVAL;
-+
-+ req_bind = (struct ip_set_req_bind *) data;
-+ req_bind->binding[IP_SET_MAXNAMELEN - 1] = '\0';
-+
-+ if (strcmp(req_bind->binding, IPSET_TOKEN_DEFAULT) == 0) {
-+ /* Default binding of a set */
-+ char *binding_name;
-+
-+ if (size != sizeof(struct ip_set_req_bind) + IP_SET_MAXNAMELEN)
-+ return -EINVAL;
-+
-+ binding_name = (char *)(data + sizeof(struct ip_set_req_bind));
-+ binding_name[IP_SET_MAXNAMELEN - 1] = '\0';
-+
-+ binding = ip_set_find_byname(binding_name);
-+ if (binding == IP_SET_INVALID_ID)
-+ return -ENOENT;
-+
-+ WRITE_LOCK(&ip_set_lock);
-+ /* Sets as binding values are referenced */
-+ if (set->binding != IP_SET_INVALID_ID)
-+ __ip_set_put(set->binding);
-+ set->binding = binding;
-+ __ip_set_get(set->binding);
-+ WRITE_UNLOCK(&ip_set_lock);
-+
-+ return 0;
-+ }
-+ binding = ip_set_find_byname(req_bind->binding);
-+ if (binding == IP_SET_INVALID_ID)
-+ return -ENOENT;
-+
-+ res = __ip_set_testip(set,
-+ data + sizeof(struct ip_set_req_bind),
-+ size - sizeof(struct ip_set_req_bind),
-+ &ip);
-+ DP("set %s, ip: %u.%u.%u.%u, binding %s",
-+ set->name, HIPQUAD(ip), ip_set_list[binding]->name);
-+
-+ if (res >= 0)
-+ res = ip_set_hash_add(set->id, ip, binding);
-+
-+ return res;
-+}
-+
-+#define FOREACH_SET_DO(fn, args...) \
-+({ \
-+ ip_set_id_t __i; \
-+ struct ip_set *__set; \
-+ \
-+ for (__i = 0; __i < ip_set_max; __i++) { \
-+ __set = ip_set_list[__i]; \
-+ if (__set != NULL) \
-+ fn(__set , ##args); \
-+ } \
-+})
-+
-+static inline void
-+__set_hash_del_byid(struct ip_set_hash *set_hash, ip_set_id_t id)
-+{
-+ if (set_hash->id == id)
-+ __set_hash_del(set_hash);
-+}
-+
-+static inline void
-+__unbind_default(struct ip_set *set)
-+{
-+ if (set->binding != IP_SET_INVALID_ID) {
-+ /* Sets as binding values are referenced */
-+ __ip_set_put(set->binding);
-+ set->binding = IP_SET_INVALID_ID;
-+ }
-+}
-+
-+static int
-+ip_set_unbindip(ip_set_id_t index,
-+ const void *data,
-+ size_t size)
-+{
-+ struct ip_set *set;
-+ struct ip_set_req_bind *req_bind;
-+ ip_set_ip_t ip;
-+ int res;
-+
-+ DP("");
-+ if (size < sizeof(struct ip_set_req_bind))
-+ return -EINVAL;
-+
-+ req_bind = (struct ip_set_req_bind *) data;
-+ req_bind->binding[IP_SET_MAXNAMELEN - 1] = '\0';
-+
-+ DP("%u %s", index, req_bind->binding);
-+ if (index == IP_SET_INVALID_ID) {
-+ /* unbind :all: */
-+ if (strcmp(req_bind->binding, IPSET_TOKEN_DEFAULT) == 0) {
-+ /* Default binding of sets */
-+ WRITE_LOCK(&ip_set_lock);
-+ FOREACH_SET_DO(__unbind_default);
-+ WRITE_UNLOCK(&ip_set_lock);
-+ return 0;
-+ } else if (strcmp(req_bind->binding, IPSET_TOKEN_ALL) == 0) {
-+ /* Flush all bindings of all sets*/
-+ WRITE_LOCK(&ip_set_lock);
-+ FOREACH_HASH_RW_DO(__set_hash_del);
-+ WRITE_UNLOCK(&ip_set_lock);
-+ return 0;
-+ }
-+ DP("unreachable reached!");
-+ return -EINVAL;
-+ }
-+
-+ set = ip_set_list[index];
-+ IP_SET_ASSERT(set);
-+ if (strcmp(req_bind->binding, IPSET_TOKEN_DEFAULT) == 0) {
-+ /* Default binding of set */
-+ ip_set_id_t binding = ip_set_find_byindex(set->binding);
-+
-+ if (binding == IP_SET_INVALID_ID)
-+ return -ENOENT;
-+
-+ WRITE_LOCK(&ip_set_lock);
-+ /* Sets in hash values are referenced */
-+ __ip_set_put(set->binding);
-+ set->binding = IP_SET_INVALID_ID;
-+ WRITE_UNLOCK(&ip_set_lock);
-+
-+ return 0;
-+ } else if (strcmp(req_bind->binding, IPSET_TOKEN_ALL) == 0) {
-+ /* Flush all bindings */
-+
-+ WRITE_LOCK(&ip_set_lock);
-+ FOREACH_HASH_RW_DO(__set_hash_del_byid, set->id);
-+ WRITE_UNLOCK(&ip_set_lock);
-+ return 0;
-+ }
-+
-+ res = __ip_set_testip(set,
-+ data + sizeof(struct ip_set_req_bind),
-+ size - sizeof(struct ip_set_req_bind),
-+ &ip);
-+
-+ DP("set %s, ip: %u.%u.%u.%u", set->name, HIPQUAD(ip));
-+ if (res >= 0)
-+ res = ip_set_hash_del(set->id, ip);
-+
-+ return res;
-+}
-+
-+static int
-+ip_set_testbind(ip_set_id_t index,
-+ const void *data,
-+ size_t size)
-+{
-+ struct ip_set *set = ip_set_list[index];
-+ struct ip_set_req_bind *req_bind;
-+ ip_set_id_t binding;
-+ ip_set_ip_t ip;
-+ int res;
-+
-+ IP_SET_ASSERT(set);
-+ if (size < sizeof(struct ip_set_req_bind))
-+ return -EINVAL;
-+
-+ req_bind = (struct ip_set_req_bind *) data;
-+ req_bind->binding[IP_SET_MAXNAMELEN - 1] = '\0';
-+
-+ if (strcmp(req_bind->binding, IPSET_TOKEN_DEFAULT) == 0) {
-+ /* Default binding of set */
-+ char *binding_name;
-+
-+ if (size != sizeof(struct ip_set_req_bind) + IP_SET_MAXNAMELEN)
-+ return -EINVAL;
-+
-+ binding_name = (char *)(data + sizeof(struct ip_set_req_bind));
-+ binding_name[IP_SET_MAXNAMELEN - 1] = '\0';
-+
-+ binding = ip_set_find_byname(binding_name);
-+ if (binding == IP_SET_INVALID_ID)
-+ return -ENOENT;
-+
-+ res = (set->binding == binding) ? -EEXIST : 0;
-+
-+ return res;
-+ }
-+ binding = ip_set_find_byname(req_bind->binding);
-+ if (binding == IP_SET_INVALID_ID)
-+ return -ENOENT;
-+
-+
-+ res = __ip_set_testip(set,
-+ data + sizeof(struct ip_set_req_bind),
-+ size - sizeof(struct ip_set_req_bind),
-+ &ip);
-+ DP("set %s, ip: %u.%u.%u.%u, binding %s",
-+ set->name, HIPQUAD(ip), ip_set_list[binding]->name);
-+
-+ if (res >= 0)
-+ res = (ip_set_find_in_hash(set->id, ip) == binding)
-+ ? -EEXIST : 0;
-+
-+ return res;
-+}
-+
-+static struct ip_set_type *
-+find_set_type_rlock(const char *typename)
-+{
-+ struct ip_set_type *type;
-+
-+ READ_LOCK(&ip_set_lock);
-+ type = find_set_type(typename);
-+ if (type == NULL)
-+ READ_UNLOCK(&ip_set_lock);
-+
-+ return type;
-+}
-+
-+static int
-+find_free_id(const char *name,
-+ ip_set_id_t *index,
-+ ip_set_id_t *id)
-+{
-+ ip_set_id_t i;
-+
-+ *id = IP_SET_INVALID_ID;
-+ for (i = 0; i < ip_set_max; i++) {
-+ if (ip_set_list[i] == NULL) {
-+ if (*id == IP_SET_INVALID_ID)
-+ *id = *index = i;
-+ } else if (strcmp(name, ip_set_list[i]->name) == 0)
-+ /* Name clash */
-+ return -EEXIST;
-+ }
-+ if (*id == IP_SET_INVALID_ID)
-+ /* No free slot remained */
-+ return -ERANGE;
-+ /* Check that index is usable as id (swapping) */
-+ check:
-+ for (i = 0; i < ip_set_max; i++) {
-+ if (ip_set_list[i] != NULL
-+ && ip_set_list[i]->id == *id) {
-+ *id = i;
-+ goto check;
-+ }
-+ }
-+ return 0;
-+}
-+
-+/*
-+ * Create a set
-+ */
-+static int
-+ip_set_create(const char *name,
-+ const char *typename,
-+ ip_set_id_t restore,
-+ const void *data,
-+ size_t size)
-+{
-+ struct ip_set *set;
-+ ip_set_id_t index, id;
-+ int res = 0;
-+
-+ DP("setname: %s, typename: %s, id: %u", name, typename, restore);
-+ /*
-+ * First, and without any locks, allocate and initialize
-+ * a normal base set structure.
-+ */
-+ set = kmalloc(sizeof(struct ip_set), GFP_KERNEL);
-+ if (!set)
-+ return -ENOMEM;
-+ set->lock = RW_LOCK_UNLOCKED;
-+ strncpy(set->name, name, IP_SET_MAXNAMELEN);
-+ set->binding = IP_SET_INVALID_ID;
-+ atomic_set(&set->ref, 0);
-+
-+ /*
-+ * Next, take the &ip_set_lock, check that we know the type,
-+ * and take a reference on the type, to make sure it
-+ * stays available while constructing our new set.
-+ *
-+ * After referencing the type, we drop the &ip_set_lock,
-+ * and let the new set construction run without locks.
-+ */
-+ set->type = find_set_type_rlock(typename);
-+ if (set->type == NULL) {
-+ /* Try loading the module */
-+ char modulename[IP_SET_MAXNAMELEN + strlen("ip_set_") + 1];
-+ strcpy(modulename, "ip_set_");
-+ strcat(modulename, typename);
-+ DP("try to load %s", modulename);
-+ request_module(modulename);
-+ set->type = find_set_type_rlock(typename);
-+ }
-+ if (set->type == NULL) {
-+ ip_set_printk("no set type '%s', set '%s' not created",
-+ typename, name);
-+ kfree(set);
-+ return -ENOENT;
-+ }
-+ __MOD_INC(set->type->me);
-+ READ_UNLOCK(&ip_set_lock);
-+
-+ /*
-+ * Without holding any locks, create private part.
-+ */
-+ res = set->type->create(set, data, size);
-+ if (res != 0) {
-+ __MOD_DEC(set->type->me);
-+ kfree(set);
-+ return res;
-+ }
-+
-+ /* BTW, res==0 here. */
-+
-+ /*
-+ * Here, we have a valid, constructed set. &ip_set_lock again,
-+ * find free id/index and check that it is not already in
-+ * ip_set_list.
-+ */
-+ WRITE_LOCK(&ip_set_lock);
-+ if ((res = find_free_id(set->name, &index, &id)) != 0) {
-+ DP("no free id!");
-+ goto cleanup;
-+ }
-+
-+ /* Make sure restore gets the same index */
-+ if (restore != IP_SET_INVALID_ID && index != restore) {
-+ DP("Can't restore, sets are screwed up");
-+ res = -ERANGE;
-+ goto cleanup;
-+ }
-+
-+ /*
-+ * Finally! Add our shiny new set to the list, and be done.
-+ */
-+ DP("create: '%s' created with index %u, id %u!", set->name, index, id);
-+ set->id = id;
-+ ip_set_list[index] = set;
-+ WRITE_UNLOCK(&ip_set_lock);
-+ return res;
-+
-+ cleanup:
-+ WRITE_UNLOCK(&ip_set_lock);
-+ set->type->destroy(set);
-+ __MOD_DEC(set->type->me);
-+ kfree(set);
-+ return res;
-+}
-+
-+/*
-+ * Destroy a given existing set
-+ */
-+static void
-+ip_set_destroy_set(ip_set_id_t index)
-+{
-+ struct ip_set *set = ip_set_list[index];
-+
-+ IP_SET_ASSERT(set);
-+ DP("set: %s", set->name);
-+ WRITE_LOCK(&ip_set_lock);
-+ FOREACH_HASH_RW_DO(__set_hash_del_byid, set->id);
-+ if (set->binding != IP_SET_INVALID_ID)
-+ __ip_set_put(set->binding);
-+ ip_set_list[index] = NULL;
-+ WRITE_UNLOCK(&ip_set_lock);
-+
-+ /* Must call it without holding any lock */
-+ set->type->destroy(set);
-+ __MOD_DEC(set->type->me);
-+ kfree(set);
-+}
-+
-+/*
-+ * Destroy a set - or all sets
-+ * Sets must not be referenced/used.
-+ */
-+static int
-+ip_set_destroy(ip_set_id_t index)
-+{
-+ ip_set_id_t i;
-+
-+ /* ref modification always protected by the mutex */
-+ if (index != IP_SET_INVALID_ID) {
-+ if (atomic_read(&ip_set_list[index]->ref))
-+ return -EBUSY;
-+ ip_set_destroy_set(index);
-+ } else {
-+ for (i = 0; i < ip_set_max; i++) {
-+ if (ip_set_list[i] != NULL
-+ && (atomic_read(&ip_set_list[i]->ref)))
-+ return -EBUSY;
-+ }
-+
-+ for (i = 0; i < ip_set_max; i++) {
-+ if (ip_set_list[i] != NULL)
-+ ip_set_destroy_set(i);
-+ }
-+ }
-+ return 0;
-+}
-+
-+static void
-+ip_set_flush_set(struct ip_set *set)
-+{
-+ DP("set: %s %u", set->name, set->id);
-+
-+ write_lock_bh(&set->lock);
-+ set->type->flush(set);
-+ write_unlock_bh(&set->lock);
-+}
-+
-+/*
-+ * Flush data in a set - or in all sets
-+ */
-+static int
-+ip_set_flush(ip_set_id_t index)
-+{
-+ if (index != IP_SET_INVALID_ID) {
-+ IP_SET_ASSERT(ip_set_list[index]);
-+ ip_set_flush_set(ip_set_list[index]);
-+ } else
-+ FOREACH_SET_DO(ip_set_flush_set);
-+
-+ return 0;
-+}
-+
-+/* Rename a set */
-+static int
-+ip_set_rename(ip_set_id_t index, const char *name)
-+{
-+ struct ip_set *set = ip_set_list[index];
-+ ip_set_id_t i;
-+ int res = 0;
-+
-+ DP("set: %s to %s", set->name, name);
-+ WRITE_LOCK(&ip_set_lock);
-+ for (i = 0; i < ip_set_max; i++) {
-+ if (ip_set_list[i] != NULL
-+ && strncmp(ip_set_list[i]->name,
-+ name,
-+ IP_SET_MAXNAMELEN - 1) == 0) {
-+ res = -EEXIST;
-+ goto unlock;
-+ }
-+ }
-+ strncpy(set->name, name, IP_SET_MAXNAMELEN);
-+ unlock:
-+ WRITE_UNLOCK(&ip_set_lock);
-+ return res;
-+}
-+
-+/*
-+ * Swap two sets so that name/index points to the other.
-+ * References are also swapped.
-+ */
-+static int
-+ip_set_swap(ip_set_id_t from_index, ip_set_id_t to_index)
-+{
-+ struct ip_set *from = ip_set_list[from_index];
-+ struct ip_set *to = ip_set_list[to_index];
-+ char from_name[IP_SET_MAXNAMELEN];
-+ u_int32_t from_ref;
-+
-+ DP("set: %s to %s", from->name, to->name);
-+ /* Type can't be changed. Artifical restriction. */
-+ if (from->type->typecode != to->type->typecode)
-+ return -ENOEXEC;
-+
-+ /* No magic here: ref munging protected by the mutex */
-+ WRITE_LOCK(&ip_set_lock);
-+ strncpy(from_name, from->name, IP_SET_MAXNAMELEN);
-+ from_ref = atomic_read(&from->ref);
-+
-+ strncpy(from->name, to->name, IP_SET_MAXNAMELEN);
-+ atomic_set(&from->ref, atomic_read(&to->ref));
-+ strncpy(to->name, from_name, IP_SET_MAXNAMELEN);
-+ atomic_set(&to->ref, from_ref);
-+
-+ ip_set_list[from_index] = to;
-+ ip_set_list[to_index] = from;
-+
-+ WRITE_UNLOCK(&ip_set_lock);
-+ return 0;
-+}
-+
-+/*
-+ * List set data
-+ */
-+
-+static inline void
-+__set_hash_bindings_size_list(struct ip_set_hash *set_hash,
-+ ip_set_id_t id, size_t *size)
-+{
-+ if (set_hash->id == id)
-+ *size += sizeof(struct ip_set_hash_list);
-+}
-+
-+static inline void
-+__set_hash_bindings_size_save(struct ip_set_hash *set_hash,
-+ ip_set_id_t id, size_t *size)
-+{
-+ if (set_hash->id == id)
-+ *size += sizeof(struct ip_set_hash_save);
-+}
-+
-+static inline void
-+__set_hash_bindings(struct ip_set_hash *set_hash,
-+ ip_set_id_t id, void *data, int *used)
-+{
-+ if (set_hash->id == id) {
-+ struct ip_set_hash_list *hash_list =
-+ (struct ip_set_hash_list *)(data + *used);
-+
-+ hash_list->ip = set_hash->ip;
-+ hash_list->binding = set_hash->binding;
-+ *used += sizeof(struct ip_set_hash_list);
-+ }
-+}
-+
-+static int ip_set_list_set(ip_set_id_t index,
-+ void *data,
-+ int *used,
-+ int len)
-+{
-+ struct ip_set *set = ip_set_list[index];
-+ struct ip_set_list *set_list;
-+
-+ /* Pointer to our header */
-+ set_list = (struct ip_set_list *) (data + *used);
-+
-+ DP("set: %s, used: %d %p %p", set->name, *used, data, data + *used);
-+
-+ /* Get and ensure header size */
-+ if (*used + sizeof(struct ip_set_list) > len)
-+ goto not_enough_mem;
-+ *used += sizeof(struct ip_set_list);
-+
-+ read_lock_bh(&set->lock);
-+ /* Get and ensure set specific header size */
-+ set_list->header_size = set->type->header_size;
-+ if (*used + set_list->header_size > len)
-+ goto unlock_set;
-+
-+ /* Fill in the header */
-+ set_list->index = index;
-+ set_list->binding = set->binding;
-+ set_list->ref = atomic_read(&set->ref);
-+
-+ /* Fill in set spefific header data */
-+ DP("call list_header");
-+ set->type->list_header(set, data + *used);
-+ DP("call list_header, done");
-+ *used += set_list->header_size;
-+
-+ /* Get and ensure set specific members size */
-+ DP("call list_members_size");
-+ set_list->members_size = set->type->list_members_size(set);
-+ DP("call list_members_size, done");
-+ if (*used + set_list->members_size > len)
-+ goto unlock_set;
-+
-+ /* Fill in set spefific members data */
-+ DP("call list_members");
-+ set->type->list_members(set, data + *used);
-+ DP("call list_members, done");
-+ *used += set_list->members_size;
-+ read_unlock_bh(&set->lock);
-+
-+ /* Bindings */
-+
-+ /* Get and ensure set specific bindings size */
-+ set_list->bindings_size = 0;
-+ FOREACH_HASH_DO(__set_hash_bindings_size_list,
-+ set->id, &set_list->bindings_size);
-+ if (*used + set_list->bindings_size > len)
-+ goto not_enough_mem;
-+
-+ /* Fill in set spefific bindings data */
-+ FOREACH_HASH_DO(__set_hash_bindings, set->id, data, used);
-+
-+ return 0;
-+
-+ unlock_set:
-+ read_unlock_bh(&set->lock);
-+ not_enough_mem:
-+ DP("not enough mem, try again");
-+ return -EAGAIN;
-+}
-+
-+/*
-+ * Save sets
-+ */
-+static int ip_set_save_set(ip_set_id_t index,
-+ void *data,
-+ int *used,
-+ int len)
-+{
-+ struct ip_set *set;
-+ struct ip_set_save *set_save;
-+
-+ /* Pointer to our header */
-+ set_save = (struct ip_set_save *) (data + *used);
-+
-+ /* Get and ensure header size */
-+ if (*used + sizeof(struct ip_set_save) > len)
-+ goto not_enough_mem;
-+ *used += sizeof(struct ip_set_save);
-+
-+ set = ip_set_list[index];
-+ DP("set: %s, used: %u(%u) %p %p", set->name, *used, len,
-+ data, data + *used);
-+
-+ read_lock_bh(&set->lock);
-+ /* Get and ensure set specific header size */
-+ set_save->header_size = set->type->header_size;
-+ if (*used + set_save->header_size > len)
-+ goto unlock_set;
-+
-+ /* Fill in the header */
-+ set_save->index = index;
-+ set_save->binding = set->binding;
-+
-+ /* Fill in set spefific header data */
-+ set->type->list_header(set, data + *used);
-+ *used += set_save->header_size;
-+
-+ DP("set header filled: %s, used: %u %p %p", set->name, *used,
-+ data, data + *used);
-+ /* Get and ensure set specific members size */
-+ set_save->members_size = set->type->list_members_size(set);
-+ if (*used + set_save->members_size > len)
-+ goto unlock_set;
-+
-+ /* Fill in set spefific members data */
-+ set->type->list_members(set, data + *used);
-+ *used += set_save->members_size;
-+ read_unlock_bh(&set->lock);
-+ DP("set members filled: %s, used: %u %p %p", set->name, *used,
-+ data, data + *used);
-+ return 0;
-+
-+ unlock_set:
-+ read_unlock_bh(&set->lock);
-+ not_enough_mem:
-+ DP("not enough mem, try again");
-+ return -EAGAIN;
-+}
-+
-+static inline void
-+__set_hash_save_bindings(struct ip_set_hash *set_hash,
-+ ip_set_id_t id,
-+ void *data,
-+ int *used,
-+ int len,
-+ int *res)
-+{
-+ if (*res == 0
-+ && (id == IP_SET_INVALID_ID || set_hash->id == id)) {
-+ struct ip_set_hash_save *hash_save =
-+ (struct ip_set_hash_save *)(data + *used);
-+ /* Ensure bindings size */
-+ if (*used + sizeof(struct ip_set_hash_save) > len) {
-+ *res = -ENOMEM;
-+ return;
-+ }
-+ hash_save->id = set_hash->id;
-+ hash_save->ip = set_hash->ip;
-+ hash_save->binding = set_hash->binding;
-+ *used += sizeof(struct ip_set_hash_save);
-+ }
-+}
-+
-+static int ip_set_save_bindings(ip_set_id_t index,
-+ void *data,
-+ int *used,
-+ int len)
-+{
-+ int res = 0;
-+ struct ip_set_save *set_save;
-+
-+ DP("used %u, len %u", *used, len);
-+ /* Get and ensure header size */
-+ if (*used + sizeof(struct ip_set_save) > len)
-+ return -ENOMEM;
-+
-+ /* Marker */
-+ set_save = (struct ip_set_save *) (data + *used);
-+ set_save->index = IP_SET_INVALID_ID;
-+ *used += sizeof(struct ip_set_save);
-+
-+ DP("marker added used %u, len %u", *used, len);
-+ /* Fill in bindings data */
-+ if (index != IP_SET_INVALID_ID)
-+ /* Sets are identified by id in hash */
-+ index = ip_set_list[index]->id;
-+ FOREACH_HASH_DO(__set_hash_save_bindings, index, data, used, len, &res);
-+
-+ return res;
-+}
-+
-+/*
-+ * Restore sets
-+ */
-+static int ip_set_restore(void *data,
-+ int len)
-+{
-+ int res = 0;
-+ int line = 0, used = 0, members_size;
-+ struct ip_set *set;
-+ struct ip_set_hash_save *hash_save;
-+ struct ip_set_restore *set_restore;
-+ ip_set_id_t index;
-+
-+ /* Loop to restore sets */
-+ while (1) {
-+ line++;
-+
-+ DP("%u %u %u", used, sizeof(struct ip_set_restore), len);
-+ /* Get and ensure header size */
-+ if (used + sizeof(struct ip_set_restore) > len)
-+ return line;
-+ set_restore = (struct ip_set_restore *) (data + used);
-+ used += sizeof(struct ip_set_restore);
-+
-+ /* Ensure data size */
-+ if (used
-+ + set_restore->header_size
-+ + set_restore->members_size > len)
-+ return line;
-+
-+ /* Check marker */
-+ if (set_restore->index == IP_SET_INVALID_ID) {
-+ line--;
-+ goto bindings;
-+ }
-+
-+ /* Try to create the set */
-+ DP("restore %s %s", set_restore->name, set_restore->typename);
-+ res = ip_set_create(set_restore->name,
-+ set_restore->typename,
-+ set_restore->index,
-+ data + used,
-+ set_restore->header_size);
-+
-+ if (res != 0)
-+ return line;
-+ used += set_restore->header_size;
-+
-+ index = ip_set_find_byindex(set_restore->index);
-+ DP("index %u, restore_index %u", index, set_restore->index);
-+ if (index != set_restore->index)
-+ return line;
-+ /* Try to restore members data */
-+ set = ip_set_list[index];
-+ members_size = 0;
-+ DP("members_size %u reqsize %u",
-+ set_restore->members_size, set->type->reqsize);
-+ while (members_size + set->type->reqsize <=
-+ set_restore->members_size) {
-+ line++;
-+ DP("members: %u, line %u", members_size, line);
-+ res = __ip_set_addip(index,
-+ data + used + members_size,
-+ set->type->reqsize);
-+ if (!(res == 0 || res == -EEXIST))
-+ return line;
-+ members_size += set->type->reqsize;
-+ }
-+
-+ DP("members_size %u %u",
-+ set_restore->members_size, members_size);
-+ if (members_size != set_restore->members_size)
-+ return line++;
-+ used += set_restore->members_size;
-+ }
-+
-+ bindings:
-+ /* Loop to restore bindings */
-+ while (used < len) {
-+ line++;
-+
-+ DP("restore binding, line %u", line);
-+ /* Get and ensure size */
-+ if (used + sizeof(struct ip_set_hash_save) > len)
-+ return line;
-+ hash_save = (struct ip_set_hash_save *) (data + used);
-+ used += sizeof(struct ip_set_hash_save);
-+
-+ /* hash_save->id is used to store the index */
-+ index = ip_set_find_byindex(hash_save->id);
-+ DP("restore binding index %u, id %u, %u -> %u",
-+ index, hash_save->id, hash_save->ip, hash_save->binding);
-+ if (index != hash_save->id)
-+ return line;
-+
-+ set = ip_set_list[hash_save->id];
-+ /* Null valued IP means default binding */
-+ if (hash_save->ip)
-+ res = ip_set_hash_add(set->id,
-+ hash_save->ip,
-+ hash_save->binding);
-+ else {
-+ IP_SET_ASSERT(set->binding == IP_SET_INVALID_ID);
-+ WRITE_LOCK(&ip_set_lock);
-+ set->binding = hash_save->binding;
-+ __ip_set_get(set->binding);
-+ WRITE_UNLOCK(&ip_set_lock);
-+ DP("default binding: %u", set->binding);
-+ }
-+ if (res != 0)
-+ return line;
-+ }
-+ if (used != len)
-+ return line;
-+
-+ return 0;
-+}
-+
-+static int
-+ip_set_sockfn_set(struct sock *sk, int optval, void *user, unsigned int len)
-+{
-+ void *data;
-+ int res = 0; /* Assume OK */
-+ unsigned *op;
-+ struct ip_set_req_adt *req_adt;
-+ ip_set_id_t index = IP_SET_INVALID_ID;
-+ int (*adtfn)(ip_set_id_t index,
-+ const void *data, size_t size);
-+ struct fn_table {
-+ int (*fn)(ip_set_id_t index,
-+ const void *data, size_t size);
-+ } adtfn_table[] =
-+ { { ip_set_addip }, { ip_set_delip }, { ip_set_testip},
-+ { ip_set_bindip}, { ip_set_unbindip }, { ip_set_testbind },
-+ };
-+
-+ DP("optval=%d, user=%p, len=%d", optval, user, len);
-+ if (!capable(CAP_NET_ADMIN))
-+ return -EPERM;
-+ if (optval != SO_IP_SET)
-+ return -EBADF;
-+ if (len <= sizeof(unsigned)) {
-+ ip_set_printk("short userdata (want >%zu, got %u)",
-+ sizeof(unsigned), len);
-+ return -EINVAL;
-+ }
-+ data = vmalloc(len);
-+ if (!data) {
-+ DP("out of mem for %u bytes", len);
-+ return -ENOMEM;
-+ }
-+ if (copy_from_user(data, user, len) != 0) {
-+ res = -EFAULT;
-+ goto done;
-+ }
-+ if (down_interruptible(&ip_set_app_mutex)) {
-+ res = -EINTR;
-+ goto done;
-+ }
-+
-+ op = (unsigned *)data;
-+ DP("op=%x", *op);
-+
-+ if (*op < IP_SET_OP_VERSION) {
-+ /* Check the version at the beginning of operations */
-+ struct ip_set_req_version *req_version =
-+ (struct ip_set_req_version *) data;
-+ if (req_version->version != IP_SET_PROTOCOL_VERSION) {
-+ res = -EPROTO;
-+ goto done;
-+ }
-+ }
-+
-+ switch (*op) {
-+ case IP_SET_OP_CREATE:{
-+ struct ip_set_req_create *req_create
-+ = (struct ip_set_req_create *) data;
-+
-+ if (len <= sizeof(struct ip_set_req_create)) {
-+ ip_set_printk("short CREATE data (want >%zu, got %u)",
-+ sizeof(struct ip_set_req_create), len);
-+ res = -EINVAL;
-+ goto done;
-+ }
-+ req_create->name[IP_SET_MAXNAMELEN - 1] = '\0';
-+ req_create->typename[IP_SET_MAXNAMELEN - 1] = '\0';
-+ res = ip_set_create(req_create->name,
-+ req_create->typename,
-+ IP_SET_INVALID_ID,
-+ data + sizeof(struct ip_set_req_create),
-+ len - sizeof(struct ip_set_req_create));
-+ goto done;
-+ }
-+ case IP_SET_OP_DESTROY:{
-+ struct ip_set_req_std *req_destroy
-+ = (struct ip_set_req_std *) data;
-+
-+ if (len != sizeof(struct ip_set_req_std)) {
-+ ip_set_printk("invalid DESTROY data (want %zu, got %u)",
-+ sizeof(struct ip_set_req_std), len);
-+ res = -EINVAL;
-+ goto done;
-+ }
-+ if (strcmp(req_destroy->name, IPSET_TOKEN_ALL) == 0) {
-+ /* Destroy all sets */
-+ index = IP_SET_INVALID_ID;
-+ } else {
-+ req_destroy->name[IP_SET_MAXNAMELEN - 1] = '\0';
-+ index = ip_set_find_byname(req_destroy->name);
-+
-+ if (index == IP_SET_INVALID_ID) {
-+ res = -ENOENT;
-+ goto done;
-+ }
-+ }
-+
-+ res = ip_set_destroy(index);
-+ goto done;
-+ }
-+ case IP_SET_OP_FLUSH:{
-+ struct ip_set_req_std *req_flush =
-+ (struct ip_set_req_std *) data;
-+
-+ if (len != sizeof(struct ip_set_req_std)) {
-+ ip_set_printk("invalid FLUSH data (want %zu, got %u)",
-+ sizeof(struct ip_set_req_std), len);
-+ res = -EINVAL;
-+ goto done;
-+ }
-+ if (strcmp(req_flush->name, IPSET_TOKEN_ALL) == 0) {
-+ /* Flush all sets */
-+ index = IP_SET_INVALID_ID;
-+ } else {
-+ req_flush->name[IP_SET_MAXNAMELEN - 1] = '\0';
-+ index = ip_set_find_byname(req_flush->name);
-+
-+ if (index == IP_SET_INVALID_ID) {
-+ res = -ENOENT;
-+ goto done;
-+ }
-+ }
-+ res = ip_set_flush(index);
-+ goto done;
-+ }
-+ case IP_SET_OP_RENAME:{
-+ struct ip_set_req_create *req_rename
-+ = (struct ip_set_req_create *) data;
-+
-+ if (len != sizeof(struct ip_set_req_create)) {
-+ ip_set_printk("invalid RENAME data (want %zu, got %u)",
-+ sizeof(struct ip_set_req_create), len);
-+ res = -EINVAL;
-+ goto done;
-+ }
-+
-+ req_rename->name[IP_SET_MAXNAMELEN - 1] = '\0';
-+ req_rename->typename[IP_SET_MAXNAMELEN - 1] = '\0';
-+
-+ index = ip_set_find_byname(req_rename->name);
-+ if (index == IP_SET_INVALID_ID) {
-+ res = -ENOENT;
-+ goto done;
-+ }
-+ res = ip_set_rename(index, req_rename->typename);
-+ goto done;
-+ }
-+ case IP_SET_OP_SWAP:{
-+ struct ip_set_req_create *req_swap
-+ = (struct ip_set_req_create *) data;
-+ ip_set_id_t to_index;
-+
-+ if (len != sizeof(struct ip_set_req_create)) {
-+ ip_set_printk("invalid SWAP data (want %zu, got %u)",
-+ sizeof(struct ip_set_req_create), len);
-+ res = -EINVAL;
-+ goto done;
-+ }
-+
-+ req_swap->name[IP_SET_MAXNAMELEN - 1] = '\0';
-+ req_swap->typename[IP_SET_MAXNAMELEN - 1] = '\0';
-+
-+ index = ip_set_find_byname(req_swap->name);
-+ if (index == IP_SET_INVALID_ID) {
-+ res = -ENOENT;
-+ goto done;
-+ }
-+ to_index = ip_set_find_byname(req_swap->typename);
-+ if (to_index == IP_SET_INVALID_ID) {
-+ res = -ENOENT;
-+ goto done;
-+ }
-+ res = ip_set_swap(index, to_index);
-+ goto done;
-+ }
-+ default:
-+ break; /* Set identified by id */
-+ }
-+
-+ /* There we may have add/del/test/bind/unbind/test_bind operations */
-+ if (*op < IP_SET_OP_ADD_IP || *op > IP_SET_OP_TEST_BIND_SET) {
-+ res = -EBADMSG;
-+ goto done;
-+ }
-+ adtfn = adtfn_table[*op - IP_SET_OP_ADD_IP].fn;
-+
-+ if (len < sizeof(struct ip_set_req_adt)) {
-+ ip_set_printk("short data in adt request (want >=%zu, got %u)",
-+ sizeof(struct ip_set_req_adt), len);
-+ res = -EINVAL;
-+ goto done;
-+ }
-+ req_adt = (struct ip_set_req_adt *) data;
-+
-+ /* -U :all: :all:|:default: uses IP_SET_INVALID_ID */
-+ if (!(*op == IP_SET_OP_UNBIND_SET
-+ && req_adt->index == IP_SET_INVALID_ID)) {
-+ index = ip_set_find_byindex(req_adt->index);
-+ if (index == IP_SET_INVALID_ID) {
-+ res = -ENOENT;
-+ goto done;
-+ }
-+ }
-+ res = adtfn(index, data, len);
-+
-+ done:
-+ up(&ip_set_app_mutex);
-+ vfree(data);
-+ if (res > 0)
-+ res = 0;
-+ DP("final result %d", res);
-+ return res;
-+}
-+
-+static int
-+ip_set_sockfn_get(struct sock *sk, int optval, void *user, int *len)
-+{
-+ int res = 0;
-+ unsigned *op;
-+ ip_set_id_t index = IP_SET_INVALID_ID;
-+ void *data;
-+ int copylen = *len;
-+
-+ DP("optval=%d, user=%p, len=%d", optval, user, *len);
-+ if (!capable(CAP_NET_ADMIN))
-+ return -EPERM;
-+ if (optval != SO_IP_SET)
-+ return -EBADF;
-+ if (*len < sizeof(unsigned)) {
-+ ip_set_printk("short userdata (want >=%zu, got %d)",
-+ sizeof(unsigned), *len);
-+ return -EINVAL;
-+ }
-+ data = vmalloc(*len);
-+ if (!data) {
-+ DP("out of mem for %d bytes", *len);
-+ return -ENOMEM;
-+ }
-+ if (copy_from_user(data, user, *len) != 0) {
-+ res = -EFAULT;
-+ goto done;
-+ }
-+ if (down_interruptible(&ip_set_app_mutex)) {
-+ res = -EINTR;
-+ goto done;
-+ }
-+
-+ op = (unsigned *) data;
-+ DP("op=%x", *op);
-+
-+ if (*op < IP_SET_OP_VERSION) {
-+ /* Check the version at the beginning of operations */
-+ struct ip_set_req_version *req_version =
-+ (struct ip_set_req_version *) data;
-+ if (req_version->version != IP_SET_PROTOCOL_VERSION) {
-+ res = -EPROTO;
-+ goto done;
-+ }
-+ }
-+
-+ switch (*op) {
-+ case IP_SET_OP_VERSION: {
-+ struct ip_set_req_version *req_version =
-+ (struct ip_set_req_version *) data;
-+
-+ if (*len != sizeof(struct ip_set_req_version)) {
-+ ip_set_printk("invalid VERSION (want %zu, got %d)",
-+ sizeof(struct ip_set_req_version),
-+ *len);
-+ res = -EINVAL;
-+ goto done;
-+ }
-+
-+ req_version->version = IP_SET_PROTOCOL_VERSION;
-+ res = copy_to_user(user, req_version,
-+ sizeof(struct ip_set_req_version));
-+ goto done;
-+ }
-+ case IP_SET_OP_GET_BYNAME: {
-+ struct ip_set_req_get_set *req_get
-+ = (struct ip_set_req_get_set *) data;
-+
-+ if (*len != sizeof(struct ip_set_req_get_set)) {
-+ ip_set_printk("invalid GET_BYNAME (want %zu, got %d)",
-+ sizeof(struct ip_set_req_get_set), *len);
-+ res = -EINVAL;
-+ goto done;
-+ }
-+ req_get->set.name[IP_SET_MAXNAMELEN - 1] = '\0';
-+ index = ip_set_find_byname(req_get->set.name);
-+ req_get->set.index = index;
-+ goto copy;
-+ }
-+ case IP_SET_OP_GET_BYINDEX: {
-+ struct ip_set_req_get_set *req_get
-+ = (struct ip_set_req_get_set *) data;
-+
-+ if (*len != sizeof(struct ip_set_req_get_set)) {
-+ ip_set_printk("invalid GET_BYINDEX (want %zu, got %d)",
-+ sizeof(struct ip_set_req_get_set), *len);
-+ res = -EINVAL;
-+ goto done;
-+ }
-+ req_get->set.name[IP_SET_MAXNAMELEN - 1] = '\0';
-+ index = ip_set_find_byindex(req_get->set.index);
-+ strncpy(req_get->set.name,
-+ index == IP_SET_INVALID_ID ? ""
-+ : ip_set_list[index]->name, IP_SET_MAXNAMELEN);
-+ goto copy;
-+ }
-+ case IP_SET_OP_ADT_GET: {
-+ struct ip_set_req_adt_get *req_get
-+ = (struct ip_set_req_adt_get *) data;
-+
-+ if (*len != sizeof(struct ip_set_req_adt_get)) {
-+ ip_set_printk("invalid ADT_GET (want %zu, got %d)",
-+ sizeof(struct ip_set_req_adt_get), *len);
-+ res = -EINVAL;
-+ goto done;
-+ }
-+ req_get->set.name[IP_SET_MAXNAMELEN - 1] = '\0';
-+ index = ip_set_find_byname(req_get->set.name);
-+ if (index != IP_SET_INVALID_ID) {
-+ req_get->set.index = index;
-+ strncpy(req_get->typename,
-+ ip_set_list[index]->type->typename,
-+ IP_SET_MAXNAMELEN - 1);
-+ } else {
-+ res = -ENOENT;
-+ goto done;
-+ }
-+ goto copy;
-+ }
-+ case IP_SET_OP_MAX_SETS: {
-+ struct ip_set_req_max_sets *req_max_sets
-+ = (struct ip_set_req_max_sets *) data;
-+ ip_set_id_t i;
-+
-+ if (*len != sizeof(struct ip_set_req_max_sets)) {
-+ ip_set_printk("invalid MAX_SETS (want %zu, got %d)",
-+ sizeof(struct ip_set_req_max_sets), *len);
-+ res = -EINVAL;
-+ goto done;
-+ }
-+
-+ if (strcmp(req_max_sets->set.name, IPSET_TOKEN_ALL) == 0) {
-+ req_max_sets->set.index = IP_SET_INVALID_ID;
-+ } else {
-+ req_max_sets->set.name[IP_SET_MAXNAMELEN - 1] = '\0';
-+ req_max_sets->set.index =
-+ ip_set_find_byname(req_max_sets->set.name);
-+ if (req_max_sets->set.index == IP_SET_INVALID_ID) {
-+ res = -ENOENT;
-+ goto done;
-+ }
-+ }
-+ req_max_sets->max_sets = ip_set_max;
-+ req_max_sets->sets = 0;
-+ for (i = 0; i < ip_set_max; i++) {
-+ if (ip_set_list[i] != NULL)
-+ req_max_sets->sets++;
-+ }
-+ goto copy;
-+ }
-+ case IP_SET_OP_LIST_SIZE:
-+ case IP_SET_OP_SAVE_SIZE: {
-+ struct ip_set_req_setnames *req_setnames
-+ = (struct ip_set_req_setnames *) data;
-+ struct ip_set_name_list *name_list;
-+ struct ip_set *set;
-+ ip_set_id_t i;
-+ int used;
-+
-+ if (*len < sizeof(struct ip_set_req_setnames)) {
-+ ip_set_printk("short LIST_SIZE (want >=%zu, got %d)",
-+ sizeof(struct ip_set_req_setnames), *len);
-+ res = -EINVAL;
-+ goto done;
-+ }
-+
-+ req_setnames->size = 0;
-+ used = sizeof(struct ip_set_req_setnames);
-+ for (i = 0; i < ip_set_max; i++) {
-+ if (ip_set_list[i] == NULL)
-+ continue;
-+ name_list = (struct ip_set_name_list *)
-+ (data + used);
-+ used += sizeof(struct ip_set_name_list);
-+ if (used > copylen) {
-+ res = -EAGAIN;
-+ goto done;
-+ }
-+ set = ip_set_list[i];
-+ /* Fill in index, name, etc. */
-+ name_list->index = i;
-+ name_list->id = set->id;
-+ strncpy(name_list->name,
-+ set->name,
-+ IP_SET_MAXNAMELEN - 1);
-+ strncpy(name_list->typename,
-+ set->type->typename,
-+ IP_SET_MAXNAMELEN - 1);
-+ DP("filled %s of type %s, index %u\n",
-+ name_list->name, name_list->typename,
-+ name_list->index);
-+ if (!(req_setnames->index == IP_SET_INVALID_ID
-+ || req_setnames->index == i))
-+ continue;
-+ /* Update size */
-+ switch (*op) {
-+ case IP_SET_OP_LIST_SIZE: {
-+ req_setnames->size += sizeof(struct ip_set_list)
-+ + set->type->header_size
-+ + set->type->list_members_size(set);
-+ FOREACH_HASH_DO(__set_hash_bindings_size_list,
-+ i, &req_setnames->size);
-+ break;
-+ }
-+ case IP_SET_OP_SAVE_SIZE: {
-+ req_setnames->size += sizeof(struct ip_set_save)
-+ + set->type->header_size
-+ + set->type->list_members_size(set);
-+ FOREACH_HASH_DO(__set_hash_bindings_size_save,
-+ i, &req_setnames->size);
-+ break;
-+ }
-+ default:
-+ break;
-+ }
-+ }
-+ if (copylen != used) {
-+ res = -EAGAIN;
-+ goto done;
-+ }
-+ goto copy;
-+ }
-+ case IP_SET_OP_LIST: {
-+ struct ip_set_req_list *req_list
-+ = (struct ip_set_req_list *) data;
-+ ip_set_id_t i;
-+ int used;
-+
-+ if (*len < sizeof(struct ip_set_req_list)) {
-+ ip_set_printk("short LIST (want >=%zu, got %d)",
-+ sizeof(struct ip_set_req_list), *len);
-+ res = -EINVAL;
-+ goto done;
-+ }
-+ index = req_list->index;
-+ if (index != IP_SET_INVALID_ID
-+ && ip_set_find_byindex(index) != index) {
-+ res = -ENOENT;
-+ goto done;
-+ }
-+ used = 0;
-+ if (index == IP_SET_INVALID_ID) {
-+ /* List all sets */
-+ for (i = 0; i < ip_set_max && res == 0; i++) {
-+ if (ip_set_list[i] != NULL)
-+ res = ip_set_list_set(i, data, &used, *len);
-+ }
-+ } else {
-+ /* List an individual set */
-+ res = ip_set_list_set(index, data, &used, *len);
-+ }
-+ if (res != 0)
-+ goto done;
-+ else if (copylen != used) {
-+ res = -EAGAIN;
-+ goto done;
-+ }
-+ goto copy;
-+ }
-+ case IP_SET_OP_SAVE: {
-+ struct ip_set_req_list *req_save
-+ = (struct ip_set_req_list *) data;
-+ ip_set_id_t i;
-+ int used;
-+
-+ if (*len < sizeof(struct ip_set_req_list)) {
-+ ip_set_printk("short SAVE (want >=%zu, got %d)",
-+ sizeof(struct ip_set_req_list), *len);
-+ res = -EINVAL;
-+ goto done;
-+ }
-+ index = req_save->index;
-+ if (index != IP_SET_INVALID_ID
-+ && ip_set_find_byindex(index) != index) {
-+ res = -ENOENT;
-+ goto done;
-+ }
-+ used = 0;
-+ if (index == IP_SET_INVALID_ID) {
-+ /* Save all sets */
-+ for (i = 0; i < ip_set_max && res == 0; i++) {
-+ if (ip_set_list[i] != NULL)
-+ res = ip_set_save_set(i, data, &used, *len);
-+ }
-+ } else {
-+ /* Save an individual set */
-+ res = ip_set_save_set(index, data, &used, *len);
-+ }
-+ if (res == 0)
-+ res = ip_set_save_bindings(index, data, &used, *len);
-+
-+ if (res != 0)
-+ goto done;
-+ else if (copylen != used) {
-+ res = -EAGAIN;
-+ goto done;
-+ }
-+ goto copy;
-+ }
-+ case IP_SET_OP_RESTORE: {
-+ struct ip_set_req_setnames *req_restore
-+ = (struct ip_set_req_setnames *) data;
-+ int line;
-+
-+ if (*len < sizeof(struct ip_set_req_setnames)
-+ || *len != req_restore->size) {
-+ ip_set_printk("invalid RESTORE (want =%zu, got %d)",
-+ req_restore->size, *len);
-+ res = -EINVAL;
-+ goto done;
-+ }
-+ line = ip_set_restore(data + sizeof(struct ip_set_req_setnames),
-+ req_restore->size - sizeof(struct ip_set_req_setnames));
-+ DP("ip_set_restore: %u", line);
-+ if (line != 0) {
-+ res = -EAGAIN;
-+ req_restore->size = line;
-+ copylen = sizeof(struct ip_set_req_setnames);
-+ goto copy;
-+ }
-+ goto done;
-+ }
-+ default:
-+ res = -EBADMSG;
-+ goto done;
-+ } /* end of switch(op) */
-+
-+ copy:
-+ DP("set %s, copylen %u", index != IP_SET_INVALID_ID
-+ && ip_set_list[index]
-+ ? ip_set_list[index]->name
-+ : ":all:", copylen);
-+ if (res == 0)
-+ res = copy_to_user(user, data, copylen);
-+ else
-+ copy_to_user(user, data, copylen);
-+
-+ done:
-+ up(&ip_set_app_mutex);
-+ vfree(data);
-+ if (res > 0)
-+ res = 0;
-+ DP("final result %d", res);
-+ return res;
-+}
-+
-+static struct nf_sockopt_ops so_set = {
-+ .pf = PF_INET,
-+ .set_optmin = SO_IP_SET,
-+ .set_optmax = SO_IP_SET + 1,
-+ .set = &ip_set_sockfn_set,
-+ .get_optmin = SO_IP_SET,
-+ .get_optmax = SO_IP_SET + 1,
-+ .get = &ip_set_sockfn_get,
-+ .use = 0
-+};
-+
-+static int max_sets, hash_size;
-+MODULE_PARM(max_sets, "i");
-+MODULE_PARM_DESC(max_sets, "maximal number of sets");
-+MODULE_PARM(hash_size, "i");
-+MODULE_PARM_DESC(hash_size, "hash size for bindings");
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-+MODULE_DESCRIPTION("module implementing core IP set support");
-+
-+static int __init init(void)
-+{
-+ int res;
-+ ip_set_id_t i;
-+
-+ get_random_bytes(&ip_set_hash_random, 4);
-+ if (max_sets)
-+ ip_set_max = max_sets;
-+ ip_set_list = vmalloc(sizeof(struct ip_set *) * ip_set_max);
-+ if (!ip_set_list) {
-+ printk(KERN_ERR "Unable to create ip_set_list\n");
-+ return -ENOMEM;
-+ }
-+ memset(ip_set_list, 0, sizeof(struct ip_set *) * ip_set_max);
-+ if (hash_size)
-+ ip_set_bindings_hash_size = hash_size;
-+ ip_set_hash = vmalloc(sizeof(struct list_head) * ip_set_bindings_hash_size);
-+ if (!ip_set_hash) {
-+ printk(KERN_ERR "Unable to create ip_set_hash\n");
-+ vfree(ip_set_list);
-+ return -ENOMEM;
-+ }
-+ for (i = 0; i < ip_set_bindings_hash_size; i++)
-+ INIT_LIST_HEAD(&ip_set_hash[i]);
-+
-+ INIT_LIST_HEAD(&set_type_list);
-+
-+ res = nf_register_sockopt(&so_set);
-+ if (res != 0) {
-+ ip_set_printk("SO_SET registry failed: %d", res);
-+ vfree(ip_set_list);
-+ vfree(ip_set_hash);
-+ return res;
-+ }
-+ return 0;
-+}
-+
-+static void __exit fini(void)
-+{
-+ /* There can't be any existing set or binding. Racy. */
-+ nf_unregister_sockopt(&so_set);
-+ vfree(ip_set_list);
-+ vfree(ip_set_hash);
-+ DP("these are the famous last words");
-+}
-+
-+EXPORT_SYMBOL(ip_set_register_set_type);
-+EXPORT_SYMBOL(ip_set_unregister_set_type);
-+
-+EXPORT_SYMBOL(ip_set_get_byname);
-+EXPORT_SYMBOL(ip_set_get_byindex);
-+EXPORT_SYMBOL(ip_set_put);
-+
-+EXPORT_SYMBOL(ip_set_addip_kernel);
-+EXPORT_SYMBOL(ip_set_delip_kernel);
-+EXPORT_SYMBOL(ip_set_testip_kernel);
-+
-+module_init(init);
-+module_exit(fini);
-diff -Naur linux-old/net/ipv4/netfilter/ip_set_iphash.c linux-new/net/ipv4/netfilter/ip_set_iphash.c
---- linux-old/net/ipv4/netfilter/ip_set_iphash.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/net/ipv4/netfilter/ip_set_iphash.c 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,379 @@
-+/* Copyright (C) 2003-2004 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+/* Kernel module implementing an ip hash set */
-+
-+#include <linux/module.h>
-+#include <linux/ip.h>
-+#include <linux/skbuff.h>
-+#include <linux/netfilter_ipv4/ip_tables.h>
-+#include <linux/netfilter_ipv4/ip_set.h>
-+#include <linux/errno.h>
-+#include <asm/uaccess.h>
-+#include <asm/bitops.h>
-+#include <asm/softirq.h>
-+#include <linux/spinlock.h>
-+#include <linux/vmalloc.h>
-+#include <linux/random.h>
-+
-+#include <net/ip.h>
-+
-+#include <linux/netfilter_ipv4/ip_set_malloc.h>
-+#include <linux/netfilter_ipv4/ip_set_iphash.h>
-+#include <linux/netfilter_ipv4/ip_set_jhash.h>
-+#include <linux/netfilter_ipv4/ip_set_prime.h>
-+
-+static inline __u32
-+jhash_ip(const struct ip_set_iphash *map, ip_set_ip_t ip)
-+{
-+ return jhash_1word(ip, map->initval);
-+}
-+
-+static inline __u32
-+randhash_ip(const struct ip_set_iphash *map, ip_set_ip_t ip)
-+{
-+ return (1 + ip % map->prime);
-+}
-+
-+static inline __u32
-+hash_id(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data;
-+ __u32 jhash, randhash, id;
-+ u_int16_t i;
-+
-+ *hash_ip = ip & map->netmask;
-+ jhash = jhash_ip(map, *hash_ip);
-+ randhash = randhash_ip(map, *hash_ip);
-+ DP("set: %s, ip:%u.%u.%u.%u, %u.%u.%u.%u, %u.%u.%u.%u",
-+ set->name, HIPQUAD(ip), HIPQUAD(*hash_ip), HIPQUAD(map->netmask));
-+
-+ for (i = 0; i < map->probes; i++) {
-+ id = (jhash + i * randhash) % map->hashsize;
-+ DP("hash key: %u", id);
-+ if (map->members[id] == *hash_ip)
-+ return id;
-+ /* No shortcut at testing - there can be deleted
-+ * entries. */
-+ }
-+ return UINT_MAX;
-+}
-+
-+static inline int
-+__testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip)
-+{
-+ return (hash_id(set, ip, hash_ip) != UINT_MAX);
-+}
-+
-+static int
-+testip(struct ip_set *set, const void *data, size_t size,
-+ ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_req_iphash *req =
-+ (struct ip_set_req_iphash *) data;
-+
-+ if (size != sizeof(struct ip_set_req_iphash)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_iphash),
-+ size);
-+ return -EINVAL;
-+ }
-+ return __testip(set, req->ip, hash_ip);
-+}
-+
-+static int
-+testip_kernel(struct ip_set *set, const struct sk_buff *skb,
-+ u_int32_t flags, ip_set_ip_t *hash_ip)
-+{
-+ return __testip(set,
-+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr
-+ : skb->nh.iph->daddr),
-+ hash_ip);
-+}
-+
-+static inline int
-+__addip(struct ip_set_iphash *map, ip_set_ip_t ip, ip_set_ip_t *hash_ip)
-+{
-+ __u32 jhash, randhash, probe;
-+ u_int16_t i;
-+
-+ *hash_ip = ip & map->netmask;
-+ jhash = jhash_ip(map, *hash_ip);
-+ randhash = randhash_ip(map, *hash_ip);
-+
-+ for (i = 0; i < map->probes; i++) {
-+ probe = (jhash + i * randhash) % map->hashsize;
-+ if (map->members[probe] == *hash_ip)
-+ return -EEXIST;
-+ if (!map->members[probe]) {
-+ map->members[probe] = *hash_ip;
-+ return 0;
-+ }
-+ }
-+ /* Trigger rehashing */
-+ return -EAGAIN;
-+}
-+
-+static int
-+addip(struct ip_set *set, const void *data, size_t size,
-+ ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_req_iphash *req =
-+ (struct ip_set_req_iphash *) data;
-+
-+ if (size != sizeof(struct ip_set_req_iphash)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_iphash),
-+ size);
-+ return -EINVAL;
-+ }
-+ return __addip((struct ip_set_iphash *) set->data, req->ip, hash_ip);
-+}
-+
-+static int
-+addip_kernel(struct ip_set *set, const struct sk_buff *skb,
-+ u_int32_t flags, ip_set_ip_t *hash_ip)
-+{
-+ return __addip((struct ip_set_iphash *) set->data,
-+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr
-+ : skb->nh.iph->daddr),
-+ hash_ip);
-+}
-+
-+static int retry(struct ip_set *set)
-+{
-+ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data;
-+ ip_set_ip_t hash_ip, *members;
-+ u_int32_t i, hashsize;
-+ unsigned newbytes;
-+ int res;
-+ struct ip_set_iphash tmp = {
-+ .hashsize = map->hashsize,
-+ .probes = map->probes,
-+ .resize = map->resize,
-+ .netmask = map->netmask,
-+ };
-+
-+ if (map->resize == 0)
-+ return -ERANGE;
-+
-+ again:
-+ res = 0;
-+
-+ /* Calculate new parameters */
-+ get_random_bytes(&tmp.initval, 4);
-+ hashsize = tmp.hashsize + (tmp.hashsize * map->resize)/100;
-+ if (hashsize == tmp.hashsize)
-+ hashsize++;
-+ tmp.prime = make_prime(hashsize);
-+
-+ ip_set_printk("rehashing of set %s triggered: "
-+ "hashsize grows from %u to %u",
-+ set->name, tmp.hashsize, hashsize);
-+ tmp.hashsize = hashsize;
-+
-+ newbytes = hashsize * sizeof(ip_set_ip_t);
-+ tmp.members = ip_set_malloc(newbytes);
-+ if (!tmp.members) {
-+ DP("out of memory for %d bytes", newbytes);
-+ return -ENOMEM;
-+ }
-+ memset(tmp.members, 0, newbytes);
-+
-+ write_lock_bh(&set->lock);
-+ map = (struct ip_set_iphash *) set->data; /* Play safe */
-+ for (i = 0; i < map->hashsize && res == 0; i++) {
-+ if (map->members[i])
-+ res = __addip(&tmp, map->members[i], &hash_ip);
-+ }
-+ if (res) {
-+ /* Failure, try again */
-+ write_unlock_bh(&set->lock);
-+ ip_set_free(tmp.members, newbytes);
-+ goto again;
-+ }
-+
-+ /* Success at resizing! */
-+ members = map->members;
-+ hashsize = map->hashsize;
-+
-+ map->initval = tmp.initval;
-+ map->prime = tmp.prime;
-+ map->hashsize = tmp.hashsize;
-+ map->members = tmp.members;
-+ write_unlock_bh(&set->lock);
-+
-+ ip_set_free(members, hashsize * sizeof(ip_set_ip_t));
-+
-+ return 0;
-+}
-+
-+static inline int
-+__delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data;
-+ ip_set_ip_t id = hash_id(set, ip, hash_ip);
-+
-+ if (id == UINT_MAX)
-+ return -EEXIST;
-+
-+ map->members[id] = 0;
-+ return 0;
-+}
-+
-+static int
-+delip(struct ip_set *set, const void *data, size_t size,
-+ ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_req_iphash *req =
-+ (struct ip_set_req_iphash *) data;
-+
-+ if (size != sizeof(struct ip_set_req_iphash)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_iphash),
-+ size);
-+ return -EINVAL;
-+ }
-+ return __delip(set, req->ip, hash_ip);
-+}
-+
-+static int
-+delip_kernel(struct ip_set *set, const struct sk_buff *skb,
-+ u_int32_t flags, ip_set_ip_t *hash_ip)
-+{
-+ return __delip(set,
-+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr
-+ : skb->nh.iph->daddr),
-+ hash_ip);
-+}
-+
-+static int create(struct ip_set *set, const void *data, size_t size)
-+{
-+ unsigned newbytes;
-+ struct ip_set_req_iphash_create *req =
-+ (struct ip_set_req_iphash_create *) data;
-+ struct ip_set_iphash *map;
-+
-+ if (size != sizeof(struct ip_set_req_iphash_create)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_iphash_create),
-+ size);
-+ return -EINVAL;
-+ }
-+
-+ if (req->hashsize < 1) {
-+ ip_set_printk("hashsize too small");
-+ return -ENOEXEC;
-+ }
-+
-+ map = kmalloc(sizeof(struct ip_set_iphash), GFP_KERNEL);
-+ if (!map) {
-+ DP("out of memory for %d bytes",
-+ sizeof(struct ip_set_iphash));
-+ return -ENOMEM;
-+ }
-+ get_random_bytes(&map->initval, 4);
-+ map->prime = make_prime(req->hashsize);
-+ map->hashsize = req->hashsize;
-+ map->probes = req->probes;
-+ map->resize = req->resize;
-+ map->netmask = req->netmask;
-+ newbytes = map->hashsize * sizeof(ip_set_ip_t);
-+ map->members = ip_set_malloc(newbytes);
-+ if (!map->members) {
-+ DP("out of memory for %d bytes", newbytes);
-+ kfree(map);
-+ return -ENOMEM;
-+ }
-+ memset(map->members, 0, newbytes);
-+
-+ set->data = map;
-+ return 0;
-+}
-+
-+static void destroy(struct ip_set *set)
-+{
-+ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data;
-+
-+ ip_set_free(map->members, map->hashsize * sizeof(ip_set_ip_t));
-+ kfree(map);
-+
-+ set->data = NULL;
-+}
-+
-+static void flush(struct ip_set *set)
-+{
-+ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data;
-+ memset(map->members, 0, map->hashsize * sizeof(ip_set_ip_t));
-+}
-+
-+static void list_header(const struct ip_set *set, void *data)
-+{
-+ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data;
-+ struct ip_set_req_iphash_create *header =
-+ (struct ip_set_req_iphash_create *) data;
-+
-+ header->hashsize = map->hashsize;
-+ header->probes = map->probes;
-+ header->resize = map->resize;
-+ header->netmask = map->netmask;
-+}
-+
-+static int list_members_size(const struct ip_set *set)
-+{
-+ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data;
-+
-+ return (map->hashsize * sizeof(ip_set_ip_t));
-+}
-+
-+static void list_members(const struct ip_set *set, void *data)
-+{
-+ struct ip_set_iphash *map = (struct ip_set_iphash *) set->data;
-+ int bytes = map->hashsize * sizeof(ip_set_ip_t);
-+
-+ memcpy(data, map->members, bytes);
-+}
-+
-+static struct ip_set_type ip_set_iphash = {
-+ .typename = SETTYPE_NAME,
-+ .typecode = IPSET_TYPE_IP,
-+ .protocol_version = IP_SET_PROTOCOL_VERSION,
-+ .create = &create,
-+ .destroy = &destroy,
-+ .flush = &flush,
-+ .reqsize = sizeof(struct ip_set_req_iphash),
-+ .addip = &addip,
-+ .addip_kernel = &addip_kernel,
-+ .retry = &retry,
-+ .delip = &delip,
-+ .delip_kernel = &delip_kernel,
-+ .testip = &testip,
-+ .testip_kernel = &testip_kernel,
-+ .header_size = sizeof(struct ip_set_req_iphash_create),
-+ .list_header = &list_header,
-+ .list_members_size = &list_members_size,
-+ .list_members = &list_members,
-+ .me = THIS_MODULE,
-+};
-+
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-+MODULE_DESCRIPTION("iphash type of IP sets");
-+
-+static int __init init(void)
-+{
-+ return ip_set_register_set_type(&ip_set_iphash);
-+}
-+
-+static void __exit fini(void)
-+{
-+ /* FIXME: possible race with ip_set_create() */
-+ ip_set_unregister_set_type(&ip_set_iphash);
-+}
-+
-+module_init(init);
-+module_exit(fini);
-diff -Naur linux-old/net/ipv4/netfilter/ip_set_ipmap.c linux-new/net/ipv4/netfilter/ip_set_ipmap.c
---- linux-old/net/ipv4/netfilter/ip_set_ipmap.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/net/ipv4/netfilter/ip_set_ipmap.c 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,314 @@
-+/* Copyright (C) 2000-2002 Joakim Axelsson <gozem@linux.nu>
-+ * Patrick Schaaf <bof@bof.de>
-+ * Copyright (C) 2003-2004 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+/* Kernel module implementing an IP set type: the single bitmap type */
-+
-+#include <linux/module.h>
-+#include <linux/ip.h>
-+#include <linux/skbuff.h>
-+#include <linux/netfilter_ipv4/ip_tables.h>
-+#include <linux/netfilter_ipv4/ip_set.h>
-+#include <linux/errno.h>
-+#include <asm/uaccess.h>
-+#include <asm/bitops.h>
-+#include <asm/softirq.h>
-+#include <linux/spinlock.h>
-+
-+#include <linux/netfilter_ipv4/ip_set_ipmap.h>
-+
-+static inline ip_set_ip_t
-+ip_to_id(const struct ip_set_ipmap *map, ip_set_ip_t ip)
-+{
-+ return (ip - map->first_ip)/map->hosts;
-+}
-+
-+static inline int
-+__testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data;
-+
-+ if (ip < map->first_ip || ip > map->last_ip)
-+ return -ERANGE;
-+
-+ *hash_ip = ip & map->netmask;
-+ DP("set: %s, ip:%u.%u.%u.%u, %u.%u.%u.%u",
-+ set->name, HIPQUAD(ip), HIPQUAD(*hash_ip));
-+ return !!test_bit(ip_to_id(map, *hash_ip), map->members);
-+}
-+
-+static int
-+testip(struct ip_set *set, const void *data, size_t size,
-+ ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_req_ipmap *req =
-+ (struct ip_set_req_ipmap *) data;
-+
-+ if (size != sizeof(struct ip_set_req_ipmap)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_ipmap),
-+ size);
-+ return -EINVAL;
-+ }
-+ return __testip(set, req->ip, hash_ip);
-+}
-+
-+static int
-+testip_kernel(struct ip_set *set,
-+ const struct sk_buff *skb,
-+ u_int32_t flags,
-+ ip_set_ip_t *hash_ip)
-+{
-+ int res;
-+
-+ DP("flag: %s src: %u.%u.%u.%u dst: %u.%u.%u.%u",
-+ flags & IPSET_SRC ? "SRC" : "DST",
-+ NIPQUAD(skb->nh.iph->saddr),
-+ NIPQUAD(skb->nh.iph->daddr));
-+
-+ res = __testip(set,
-+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr
-+ : skb->nh.iph->daddr),
-+ hash_ip);
-+ return (res < 0 ? 0 : res);
-+}
-+
-+static inline int
-+__addip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data;
-+
-+ if (ip < map->first_ip || ip > map->last_ip)
-+ return -ERANGE;
-+
-+ *hash_ip = ip & map->netmask;
-+ DP("%u.%u.%u.%u, %u.%u.%u.%u", HIPQUAD(ip), HIPQUAD(*hash_ip));
-+ if (test_and_set_bit(ip_to_id(map, *hash_ip), map->members))
-+ return -EEXIST;
-+
-+ return 0;
-+}
-+
-+static int
-+addip(struct ip_set *set, const void *data, size_t size,
-+ ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_req_ipmap *req =
-+ (struct ip_set_req_ipmap *) data;
-+
-+ if (size != sizeof(struct ip_set_req_ipmap)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_ipmap),
-+ size);
-+ return -EINVAL;
-+ }
-+ DP("%u.%u.%u.%u", HIPQUAD(req->ip));
-+ return __addip(set, req->ip, hash_ip);
-+}
-+
-+static int
-+addip_kernel(struct ip_set *set, const struct sk_buff *skb,
-+ u_int32_t flags, ip_set_ip_t *hash_ip)
-+{
-+ return __addip(set,
-+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr
-+ : skb->nh.iph->daddr),
-+ hash_ip);
-+}
-+
-+static inline int
-+__delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data;
-+
-+ if (ip < map->first_ip || ip > map->last_ip)
-+ return -ERANGE;
-+
-+ *hash_ip = ip & map->netmask;
-+ DP("%u.%u.%u.%u, %u.%u.%u.%u", HIPQUAD(ip), HIPQUAD(*hash_ip));
-+ if (!test_and_clear_bit(ip_to_id(map, *hash_ip), map->members))
-+ return -EEXIST;
-+
-+ return 0;
-+}
-+
-+static int
-+delip(struct ip_set *set, const void *data, size_t size,
-+ ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_req_ipmap *req =
-+ (struct ip_set_req_ipmap *) data;
-+
-+ if (size != sizeof(struct ip_set_req_ipmap)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_ipmap),
-+ size);
-+ return -EINVAL;
-+ }
-+ return __delip(set, req->ip, hash_ip);
-+}
-+
-+static int
-+delip_kernel(struct ip_set *set, const struct sk_buff *skb,
-+ u_int32_t flags, ip_set_ip_t *hash_ip)
-+{
-+ return __delip(set,
-+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr
-+ : skb->nh.iph->daddr),
-+ hash_ip);
-+}
-+
-+static int create(struct ip_set *set, const void *data, size_t size)
-+{
-+ int newbytes;
-+ struct ip_set_req_ipmap_create *req =
-+ (struct ip_set_req_ipmap_create *) data;
-+ struct ip_set_ipmap *map;
-+
-+ if (size != sizeof(struct ip_set_req_ipmap_create)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_ipmap_create),
-+ size);
-+ return -EINVAL;
-+ }
-+
-+ DP("from %u.%u.%u.%u to %u.%u.%u.%u",
-+ HIPQUAD(req->from), HIPQUAD(req->to));
-+
-+ if (req->from > req->to) {
-+ DP("bad ip range");
-+ return -ENOEXEC;
-+ }
-+
-+ if (req->to - req->from > MAX_RANGE) {
-+ ip_set_printk("range too big (max %d addresses)",
-+ MAX_RANGE);
-+ return -ENOEXEC;
-+ }
-+
-+ map = kmalloc(sizeof(struct ip_set_ipmap), GFP_KERNEL);
-+ if (!map) {
-+ DP("out of memory for %d bytes",
-+ sizeof(struct ip_set_ipmap));
-+ return -ENOMEM;
-+ }
-+ map->first_ip = req->from;
-+ map->last_ip = req->to;
-+ map->netmask = req->netmask;
-+
-+ if (req->netmask == 0xFFFFFFFF) {
-+ map->hosts = 1;
-+ map->sizeid = map->last_ip - map->first_ip + 1;
-+ } else {
-+ unsigned int mask_bits, netmask_bits;
-+ ip_set_ip_t mask;
-+
-+ map->first_ip &= map->netmask; /* Should we better bark? */
-+
-+ mask = range_to_mask(map->first_ip, map->last_ip, &mask_bits);
-+ netmask_bits = mask_to_bits(map->netmask);
-+
-+ if (!mask || netmask_bits <= mask_bits)
-+ return -ENOEXEC;
-+
-+ map->hosts = 2 << (32 - netmask_bits - 1);
-+ map->sizeid = 2 << (netmask_bits - mask_bits - 1);
-+ }
-+ newbytes = bitmap_bytes(0, map->sizeid - 1);
-+ map->members = kmalloc(newbytes, GFP_KERNEL);
-+ if (!map->members) {
-+ DP("out of memory for %d bytes", newbytes);
-+ kfree(map);
-+ return -ENOMEM;
-+ }
-+ memset(map->members, 0, newbytes);
-+
-+ set->data = map;
-+ return 0;
-+}
-+
-+static void destroy(struct ip_set *set)
-+{
-+ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data;
-+
-+ kfree(map->members);
-+ kfree(map);
-+
-+ set->data = NULL;
-+}
-+
-+static void flush(struct ip_set *set)
-+{
-+ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data;
-+ memset(map->members, 0, bitmap_bytes(0, map->sizeid - 1));
-+}
-+
-+static void list_header(const struct ip_set *set, void *data)
-+{
-+ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data;
-+ struct ip_set_req_ipmap_create *header =
-+ (struct ip_set_req_ipmap_create *) data;
-+
-+ header->from = map->first_ip;
-+ header->to = map->last_ip;
-+ header->netmask = map->netmask;
-+}
-+
-+static int list_members_size(const struct ip_set *set)
-+{
-+ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data;
-+
-+ return bitmap_bytes(0, map->sizeid - 1);
-+}
-+
-+static void list_members(const struct ip_set *set, void *data)
-+{
-+ struct ip_set_ipmap *map = (struct ip_set_ipmap *) set->data;
-+ int bytes = bitmap_bytes(0, map->sizeid - 1);
-+
-+ memcpy(data, map->members, bytes);
-+}
-+
-+static struct ip_set_type ip_set_ipmap = {
-+ .typename = SETTYPE_NAME,
-+ .typecode = IPSET_TYPE_IP,
-+ .protocol_version = IP_SET_PROTOCOL_VERSION,
-+ .create = &create,
-+ .destroy = &destroy,
-+ .flush = &flush,
-+ .reqsize = sizeof(struct ip_set_req_ipmap),
-+ .addip = &addip,
-+ .addip_kernel = &addip_kernel,
-+ .delip = &delip,
-+ .delip_kernel = &delip_kernel,
-+ .testip = &testip,
-+ .testip_kernel = &testip_kernel,
-+ .header_size = sizeof(struct ip_set_req_ipmap_create),
-+ .list_header = &list_header,
-+ .list_members_size = &list_members_size,
-+ .list_members = &list_members,
-+ .me = THIS_MODULE,
-+};
-+
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-+MODULE_DESCRIPTION("ipmap type of IP sets");
-+
-+static int __init init(void)
-+{
-+ return ip_set_register_set_type(&ip_set_ipmap);
-+}
-+
-+static void __exit fini(void)
-+{
-+ /* FIXME: possible race with ip_set_create() */
-+ ip_set_unregister_set_type(&ip_set_ipmap);
-+}
-+
-+module_init(init);
-+module_exit(fini);
-diff -Naur linux-old/net/ipv4/netfilter/ip_set_iptree.c linux-new/net/ipv4/netfilter/ip_set_iptree.c
---- linux-old/net/ipv4/netfilter/ip_set_iptree.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/net/ipv4/netfilter/ip_set_iptree.c 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,511 @@
-+/* Copyright (C) 2005 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+/* Kernel module implementing an IP set type: the iptree type */
-+
-+#include <linux/module.h>
-+#include <linux/ip.h>
-+#include <linux/skbuff.h>
-+#include <linux/slab.h>
-+#include <linux/delay.h>
-+#include <linux/netfilter_ipv4/ip_tables.h>
-+#include <linux/netfilter_ipv4/ip_set.h>
-+#include <linux/errno.h>
-+#include <asm/uaccess.h>
-+#include <asm/bitops.h>
-+#include <linux/interrupt.h>
-+#include <linux/spinlock.h>
-+
-+#include <linux/netfilter_ipv4/ip_set_iptree.h>
-+
-+/* Garbage collection interval in seconds: */
-+#define IPTREE_GC_TIME 5*60
-+/* Sleep so many milliseconds before trying again
-+ * to delete the gc timer at destroying a set */
-+#define IPTREE_DESTROY_SLEEP 100
-+
-+static kmem_cache_t *branch_cachep;
-+static kmem_cache_t *leaf_cachep;
-+
-+#define ABCD(a,b,c,d,addrp) do { \
-+ a = ((unsigned char *)addrp)[3]; \
-+ b = ((unsigned char *)addrp)[2]; \
-+ c = ((unsigned char *)addrp)[1]; \
-+ d = ((unsigned char *)addrp)[0]; \
-+} while (0)
-+
-+#define TESTIP_WALK(map, elem, branch) do { \
-+ if ((map)->tree[elem]) { \
-+ branch = (map)->tree[elem]; \
-+ } else \
-+ return 0; \
-+} while (0)
-+
-+static inline int
-+__testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data;
-+ struct ip_set_iptreeb *btree;
-+ struct ip_set_iptreec *ctree;
-+ struct ip_set_iptreed *dtree;
-+ unsigned char a,b,c,d;
-+
-+ *hash_ip = ip;
-+ ABCD(a, b, c, d, hash_ip);
-+ DP("%u %u %u %u timeout %u", a, b, c, d, map->timeout);
-+ TESTIP_WALK(map, a, btree);
-+ TESTIP_WALK(btree, b, ctree);
-+ TESTIP_WALK(ctree, c, dtree);
-+ DP("%lu %lu", dtree->expires[d], jiffies);
-+ return !!(map->timeout ? (time_after(dtree->expires[d], jiffies))
-+ : dtree->expires[d]);
-+}
-+
-+static int
-+testip(struct ip_set *set, const void *data, size_t size,
-+ ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_req_iptree *req =
-+ (struct ip_set_req_iptree *) data;
-+
-+ if (size != sizeof(struct ip_set_req_iptree)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_iptree),
-+ size);
-+ return -EINVAL;
-+ }
-+ return __testip(set, req->ip, hash_ip);
-+}
-+
-+static int
-+testip_kernel(struct ip_set *set,
-+ const struct sk_buff *skb,
-+ u_int32_t flags,
-+ ip_set_ip_t *hash_ip)
-+{
-+ int res;
-+
-+ DP("flag: %s src: %u.%u.%u.%u dst: %u.%u.%u.%u",
-+ flags & IPSET_SRC ? "SRC" : "DST",
-+ NIPQUAD(skb->nh.iph->saddr),
-+ NIPQUAD(skb->nh.iph->daddr));
-+
-+ res = __testip(set,
-+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr
-+ : skb->nh.iph->daddr),
-+ hash_ip);
-+ return (res < 0 ? 0 : res);
-+}
-+
-+#define ADDIP_WALK(map, elem, branch, type, cachep) do { \
-+ if ((map)->tree[elem]) { \
-+ DP("found %u", elem); \
-+ branch = (map)->tree[elem]; \
-+ } else { \
-+ branch = (type *) \
-+ kmem_cache_alloc(cachep, GFP_KERNEL); \
-+ if (branch == NULL) \
-+ return -ENOMEM; \
-+ memset(branch, 0, sizeof(*branch)); \
-+ (map)->tree[elem] = branch; \
-+ DP("alloc %u", elem); \
-+ } \
-+} while (0)
-+
-+static inline int
-+__addip(struct ip_set *set, ip_set_ip_t ip, unsigned int timeout,
-+ ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data;
-+ struct ip_set_iptreeb *btree;
-+ struct ip_set_iptreec *ctree;
-+ struct ip_set_iptreed *dtree;
-+ unsigned char a,b,c,d;
-+ int ret = 0;
-+
-+ *hash_ip = ip;
-+ ABCD(a, b, c, d, hash_ip);
-+ DP("%u %u %u %u timeout %u", a, b, c, d, timeout);
-+ ADDIP_WALK(map, a, btree, struct ip_set_iptreeb, branch_cachep);
-+ ADDIP_WALK(btree, b, ctree, struct ip_set_iptreec, branch_cachep);
-+ ADDIP_WALK(ctree, c, dtree, struct ip_set_iptreed, leaf_cachep);
-+ if (dtree->expires[d]
-+ && (!map->timeout || time_after(dtree->expires[d], jiffies)))
-+ ret = -EEXIST;
-+ dtree->expires[d] = map->timeout ? (timeout * HZ + jiffies) : 1;
-+ DP("%u %lu", d, dtree->expires[d]);
-+ return ret;
-+}
-+
-+static int
-+addip(struct ip_set *set, const void *data, size_t size,
-+ ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data;
-+ struct ip_set_req_iptree *req =
-+ (struct ip_set_req_iptree *) data;
-+
-+ if (size != sizeof(struct ip_set_req_iptree)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_iptree),
-+ size);
-+ return -EINVAL;
-+ }
-+ DP("%u.%u.%u.%u %u", HIPQUAD(req->ip), req->timeout);
-+ return __addip(set, req->ip,
-+ req->timeout ? req->timeout : map->timeout,
-+ hash_ip);
-+}
-+
-+static int
-+addip_kernel(struct ip_set *set, const struct sk_buff *skb,
-+ u_int32_t flags, ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data;
-+
-+ return __addip(set,
-+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr
-+ : skb->nh.iph->daddr),
-+ map->timeout,
-+ hash_ip);
-+}
-+
-+#define DELIP_WALK(map, elem, branch) do { \
-+ if ((map)->tree[elem]) { \
-+ branch = (map)->tree[elem]; \
-+ } else \
-+ return -EEXIST; \
-+} while (0)
-+
-+static inline int
-+__delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data;
-+ struct ip_set_iptreeb *btree;
-+ struct ip_set_iptreec *ctree;
-+ struct ip_set_iptreed *dtree;
-+ unsigned char a,b,c,d;
-+
-+ *hash_ip = ip;
-+ ABCD(a, b, c, d, hash_ip);
-+ DELIP_WALK(map, a, btree);
-+ DELIP_WALK(btree, b, ctree);
-+ DELIP_WALK(ctree, c, dtree);
-+
-+ if (dtree->expires[d]) {
-+ dtree->expires[d] = 0;
-+ return 0;
-+ }
-+ return -EEXIST;
-+}
-+
-+static int
-+delip(struct ip_set *set, const void *data, size_t size,
-+ ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_req_iptree *req =
-+ (struct ip_set_req_iptree *) data;
-+
-+ if (size != sizeof(struct ip_set_req_iptree)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_iptree),
-+ size);
-+ return -EINVAL;
-+ }
-+ return __delip(set, req->ip, hash_ip);
-+}
-+
-+static int
-+delip_kernel(struct ip_set *set, const struct sk_buff *skb,
-+ u_int32_t flags, ip_set_ip_t *hash_ip)
-+{
-+ return __delip(set,
-+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr
-+ : skb->nh.iph->daddr),
-+ hash_ip);
-+}
-+
-+#define LOOP_WALK_BEGIN(map, i, branch) \
-+ for (i = 0; i < 255; i++) { \
-+ if (!(map)->tree[i]) \
-+ continue; \
-+ branch = (map)->tree[i]
-+
-+#define LOOP_WALK_END }
-+
-+static void ip_tree_gc(unsigned long ul_set)
-+{
-+ struct ip_set *set = (void *) ul_set;
-+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data;
-+ struct ip_set_iptreeb *btree;
-+ struct ip_set_iptreec *ctree;
-+ struct ip_set_iptreed *dtree;
-+ unsigned char a,b,c,d;
-+ unsigned char i,j,k;
-+
-+ i = j = k = 0;
-+ DP("gc: %s", set->name);
-+ write_lock_bh(&set->lock);
-+ LOOP_WALK_BEGIN(map, a, btree);
-+ LOOP_WALK_BEGIN(btree, b, ctree);
-+ LOOP_WALK_BEGIN(ctree, c, dtree);
-+ for (d = 0; d < 255; d++) {
-+ if (dtree->expires[d]) {
-+ DP("gc: %u %u %u %u: expires %lu jiffies %lu",
-+ a, b, c, d,
-+ dtree->expires[d], jiffies);
-+ if (map->timeout
-+ && time_before(dtree->expires[d], jiffies))
-+ dtree->expires[d] = 0;
-+ else
-+ k = 1;
-+ }
-+ }
-+ if (k == 0) {
-+ DP("gc: %s: leaf %u %u %u empty",
-+ set->name, a, b, c);
-+ kmem_cache_free(leaf_cachep, dtree);
-+ ctree->tree[c] = NULL;
-+ } else {
-+ DP("gc: %s: leaf %u %u %u not empty",
-+ set->name, a, b, c);
-+ j = 1;
-+ k = 0;
-+ }
-+ LOOP_WALK_END;
-+ if (j == 0) {
-+ DP("gc: %s: branch %u %u empty",
-+ set->name, a, b);
-+ kmem_cache_free(branch_cachep, ctree);
-+ btree->tree[b] = NULL;
-+ } else {
-+ DP("gc: %s: branch %u %u not empty",
-+ set->name, a, b);
-+ i = 1;
-+ j = k = 0;
-+ }
-+ LOOP_WALK_END;
-+ if (i == 0) {
-+ DP("gc: %s: branch %u empty",
-+ set->name, a);
-+ kmem_cache_free(branch_cachep, btree);
-+ map->tree[a] = NULL;
-+ } else {
-+ DP("gc: %s: branch %u not empty",
-+ set->name, a);
-+ i = j = k = 0;
-+ }
-+ LOOP_WALK_END;
-+ write_unlock_bh(&set->lock);
-+
-+ map->gc.expires = jiffies + map->gc_interval * HZ;
-+ add_timer(&map->gc);
-+}
-+
-+static int create(struct ip_set *set, const void *data, size_t size)
-+{
-+ struct ip_set_req_iptree_create *req =
-+ (struct ip_set_req_iptree_create *) data;
-+ struct ip_set_iptree *map;
-+
-+ if (size != sizeof(struct ip_set_req_iptree_create)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_iptree_create),
-+ size);
-+ return -EINVAL;
-+ }
-+
-+ map = kmalloc(sizeof(struct ip_set_iptree), GFP_KERNEL);
-+ if (!map) {
-+ DP("out of memory for %d bytes",
-+ sizeof(struct ip_set_iptree));
-+ return -ENOMEM;
-+ }
-+ memset(map, 0, sizeof(*map));
-+ map->timeout = req->timeout;
-+ set->data = map;
-+
-+ /* If there is no timeout for the entries,
-+ * we still have to call gc because delete
-+ * do not clean up empty branches */
-+ map->gc_interval = IPTREE_GC_TIME;
-+ init_timer(&map->gc);
-+ map->gc.data = (unsigned long) set;
-+ map->gc.function = ip_tree_gc;
-+ map->gc.expires = jiffies + map->gc_interval * HZ;
-+ add_timer(&map->gc);
-+
-+ return 0;
-+}
-+
-+static void __flush(struct ip_set_iptree *map)
-+{
-+ struct ip_set_iptreeb *btree;
-+ struct ip_set_iptreec *ctree;
-+ struct ip_set_iptreed *dtree;
-+ unsigned int a,b,c;
-+
-+ LOOP_WALK_BEGIN(map, a, btree);
-+ LOOP_WALK_BEGIN(btree, b, ctree);
-+ LOOP_WALK_BEGIN(ctree, c, dtree);
-+ kmem_cache_free(leaf_cachep, dtree);
-+ LOOP_WALK_END;
-+ kmem_cache_free(branch_cachep, ctree);
-+ LOOP_WALK_END;
-+ kmem_cache_free(branch_cachep, btree);
-+ LOOP_WALK_END;
-+}
-+
-+static void destroy(struct ip_set *set)
-+{
-+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data;
-+
-+ while (!del_timer(&map->gc))
-+ msleep(IPTREE_DESTROY_SLEEP);
-+ __flush(map);
-+ kfree(map);
-+ set->data = NULL;
-+}
-+
-+static void flush(struct ip_set *set)
-+{
-+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data;
-+ unsigned int timeout = map->timeout;
-+
-+ __flush(map);
-+ memset(map, 0, sizeof(*map));
-+ map->timeout = timeout;
-+}
-+
-+static void list_header(const struct ip_set *set, void *data)
-+{
-+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data;
-+ struct ip_set_req_iptree_create *header =
-+ (struct ip_set_req_iptree_create *) data;
-+
-+ header->timeout = map->timeout;
-+}
-+
-+static int list_members_size(const struct ip_set *set)
-+{
-+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data;
-+ struct ip_set_iptreeb *btree;
-+ struct ip_set_iptreec *ctree;
-+ struct ip_set_iptreed *dtree;
-+ unsigned char a,b,c,d;
-+ unsigned int count = 0;
-+
-+ LOOP_WALK_BEGIN(map, a, btree);
-+ LOOP_WALK_BEGIN(btree, b, ctree);
-+ LOOP_WALK_BEGIN(ctree, c, dtree);
-+ for (d = 0; d < 255; d++) {
-+ if (dtree->expires[d]
-+ && (!map->timeout || time_after(dtree->expires[d], jiffies)))
-+ count++;
-+ }
-+ LOOP_WALK_END;
-+ LOOP_WALK_END;
-+ LOOP_WALK_END;
-+
-+ DP("members %u", count);
-+ return (count * sizeof(struct ip_set_req_iptree));
-+}
-+
-+static void list_members(const struct ip_set *set, void *data)
-+{
-+ struct ip_set_iptree *map = (struct ip_set_iptree *) set->data;
-+ struct ip_set_iptreeb *btree;
-+ struct ip_set_iptreec *ctree;
-+ struct ip_set_iptreed *dtree;
-+ unsigned char a,b,c,d;
-+ size_t offset = 0;
-+ struct ip_set_req_iptree *entry;
-+
-+ LOOP_WALK_BEGIN(map, a, btree);
-+ LOOP_WALK_BEGIN(btree, b, ctree);
-+ LOOP_WALK_BEGIN(ctree, c, dtree);
-+ for (d = 0; d < 255; d++) {
-+ if (dtree->expires[d]
-+ && (!map->timeout || time_after(dtree->expires[d], jiffies))) {
-+ entry = (struct ip_set_req_iptree *)(data + offset);
-+ entry->ip = ((a << 24) | (b << 16) | (c << 8) | d);
-+ entry->timeout = !map->timeout ? 0
-+ : (dtree->expires[d] - jiffies)/HZ;
-+ offset += sizeof(struct ip_set_req_iptree);
-+ }
-+ }
-+ LOOP_WALK_END;
-+ LOOP_WALK_END;
-+ LOOP_WALK_END;
-+}
-+
-+static struct ip_set_type ip_set_iptree = {
-+ .typename = SETTYPE_NAME,
-+ .typecode = IPSET_TYPE_IP,
-+ .protocol_version = IP_SET_PROTOCOL_VERSION,
-+ .create = &create,
-+ .destroy = &destroy,
-+ .flush = &flush,
-+ .reqsize = sizeof(struct ip_set_req_iptree),
-+ .addip = &addip,
-+ .addip_kernel = &addip_kernel,
-+ .delip = &delip,
-+ .delip_kernel = &delip_kernel,
-+ .testip = &testip,
-+ .testip_kernel = &testip_kernel,
-+ .header_size = sizeof(struct ip_set_req_iptree_create),
-+ .list_header = &list_header,
-+ .list_members_size = &list_members_size,
-+ .list_members = &list_members,
-+ .me = THIS_MODULE,
-+};
-+
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-+MODULE_DESCRIPTION("iptree type of IP sets");
-+
-+static int __init init(void)
-+{
-+ int ret;
-+
-+ branch_cachep = kmem_cache_create("ip_set_iptreeb",
-+ sizeof(struct ip_set_iptreeb),
-+ 0, 0, NULL, NULL);
-+ if (!branch_cachep) {
-+ printk(KERN_ERR "Unable to create ip_set_iptreeb slab cache\n");
-+ ret = -ENOMEM;
-+ goto out;
-+ }
-+ leaf_cachep = kmem_cache_create("ip_set_iptreed",
-+ sizeof(struct ip_set_iptreed),
-+ 0, 0, NULL, NULL);
-+ if (!leaf_cachep) {
-+ printk(KERN_ERR "Unable to create ip_set_iptreed slab cache\n");
-+ ret = -ENOMEM;
-+ goto free_branch;
-+ }
-+ ret = ip_set_register_set_type(&ip_set_iptree);
-+ if (ret == 0)
-+ goto out;
-+
-+ kmem_cache_destroy(leaf_cachep);
-+ free_branch:
-+ kmem_cache_destroy(branch_cachep);
-+ out:
-+ return ret;
-+}
-+
-+static void __exit fini(void)
-+{
-+ /* FIXME: possible race with ip_set_create() */
-+ ip_set_unregister_set_type(&ip_set_iptree);
-+ kmem_cache_destroy(leaf_cachep);
-+ kmem_cache_destroy(branch_cachep);
-+}
-+
-+module_init(init);
-+module_exit(fini);
-diff -Naur linux-old/net/ipv4/netfilter/ip_set_macipmap.c linux-new/net/ipv4/netfilter/ip_set_macipmap.c
---- linux-old/net/ipv4/netfilter/ip_set_macipmap.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/net/ipv4/netfilter/ip_set_macipmap.c 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,340 @@
-+/* Copyright (C) 2000-2002 Joakim Axelsson <gozem@linux.nu>
-+ * Patrick Schaaf <bof@bof.de>
-+ * Martin Josefsson <gandalf@wlug.westbo.se>
-+ * Copyright (C) 2003-2004 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+/* Kernel module implementing an IP set type: the macipmap type */
-+
-+#include <linux/module.h>
-+#include <linux/ip.h>
-+#include <linux/skbuff.h>
-+#include <linux/netfilter_ipv4/ip_tables.h>
-+#include <linux/netfilter_ipv4/ip_set.h>
-+#include <linux/errno.h>
-+#include <asm/uaccess.h>
-+#include <asm/bitops.h>
-+#include <asm/softirq.h>
-+#include <linux/spinlock.h>
-+#include <linux/if_ether.h>
-+#include <linux/vmalloc.h>
-+
-+#include <linux/netfilter_ipv4/ip_set_malloc.h>
-+#include <linux/netfilter_ipv4/ip_set_macipmap.h>
-+
-+static int
-+testip(struct ip_set *set, const void *data, size_t size, ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_macipmap *map = (struct ip_set_macipmap *) set->data;
-+ struct ip_set_macip *table = (struct ip_set_macip *) map->members;
-+ struct ip_set_req_macipmap *req = (struct ip_set_req_macipmap *) data;
-+
-+ if (size != sizeof(struct ip_set_req_macipmap)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_macipmap),
-+ size);
-+ return -EINVAL;
-+ }
-+
-+ if (req->ip < map->first_ip || req->ip > map->last_ip)
-+ return -ERANGE;
-+
-+ *hash_ip = req->ip;
-+ DP("set: %s, ip:%u.%u.%u.%u, %u.%u.%u.%u",
-+ set->name, HIPQUAD(req->ip), HIPQUAD(*hash_ip));
-+ if (test_bit(IPSET_MACIP_ISSET,
-+ &table[req->ip - map->first_ip].flags)) {
-+ return (memcmp(req->ethernet,
-+ &table[req->ip - map->first_ip].ethernet,
-+ ETH_ALEN) == 0);
-+ } else {
-+ return (map->flags & IPSET_MACIP_MATCHUNSET ? 1 : 0);
-+ }
-+}
-+
-+static int
-+testip_kernel(struct ip_set *set, const struct sk_buff *skb,
-+ u_int32_t flags, ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_macipmap *map =
-+ (struct ip_set_macipmap *) set->data;
-+ struct ip_set_macip *table =
-+ (struct ip_set_macip *) map->members;
-+ ip_set_ip_t ip;
-+
-+ ip = ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr
-+ : skb->nh.iph->daddr);
-+ DP("flag: %s src: %u.%u.%u.%u dst: %u.%u.%u.%u",
-+ flags & IPSET_SRC ? "SRC" : "DST",
-+ NIPQUAD(skb->nh.iph->saddr),
-+ NIPQUAD(skb->nh.iph->daddr));
-+
-+ if (ip < map->first_ip || ip > map->last_ip)
-+ return 0;
-+
-+ *hash_ip = ip;
-+ DP("set: %s, ip:%u.%u.%u.%u, %u.%u.%u.%u",
-+ set->name, HIPQUAD(ip), HIPQUAD(*hash_ip));
-+ if (test_bit(IPSET_MACIP_ISSET, &table[ip - map->first_ip].flags)) {
-+ /* Is mac pointer valid?
-+ * If so, compare... */
-+ return (skb->mac.raw >= skb->head
-+ && (skb->mac.raw + ETH_HLEN) <= skb->data
-+ && (memcmp(skb->mac.ethernet->h_source,
-+ &table[ip - map->first_ip].ethernet,
-+ ETH_ALEN) == 0));
-+ } else {
-+ return (map->flags & IPSET_MACIP_MATCHUNSET ? 1 : 0);
-+ }
-+}
-+
-+/* returns 0 on success */
-+static inline int
-+__addip(struct ip_set *set,
-+ ip_set_ip_t ip, unsigned char *ethernet, ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_macipmap *map =
-+ (struct ip_set_macipmap *) set->data;
-+ struct ip_set_macip *table =
-+ (struct ip_set_macip *) map->members;
-+
-+ if (ip < map->first_ip || ip > map->last_ip)
-+ return -ERANGE;
-+ if (test_and_set_bit(IPSET_MACIP_ISSET,
-+ &table[ip - map->first_ip].flags))
-+ return -EEXIST;
-+
-+ *hash_ip = ip;
-+ DP("%u.%u.%u.%u, %u.%u.%u.%u", HIPQUAD(ip), HIPQUAD(*hash_ip));
-+ memcpy(&table[ip - map->first_ip].ethernet, ethernet, ETH_ALEN);
-+ return 0;
-+}
-+
-+static int
-+addip(struct ip_set *set, const void *data, size_t size,
-+ ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_req_macipmap *req =
-+ (struct ip_set_req_macipmap *) data;
-+
-+ if (size != sizeof(struct ip_set_req_macipmap)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_macipmap),
-+ size);
-+ return -EINVAL;
-+ }
-+ return __addip(set, req->ip, req->ethernet, hash_ip);
-+}
-+
-+static int
-+addip_kernel(struct ip_set *set, const struct sk_buff *skb,
-+ u_int32_t flags, ip_set_ip_t *hash_ip)
-+{
-+ ip_set_ip_t ip;
-+
-+ ip = ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr
-+ : skb->nh.iph->daddr);
-+
-+ if (!(skb->mac.raw >= skb->head
-+ && (skb->mac.raw + ETH_HLEN) <= skb->data))
-+ return -EINVAL;
-+
-+ return __addip(set, ip, skb->mac.ethernet->h_source, hash_ip);
-+}
-+
-+static inline int
-+__delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_macipmap *map =
-+ (struct ip_set_macipmap *) set->data;
-+ struct ip_set_macip *table =
-+ (struct ip_set_macip *) map->members;
-+
-+ if (ip < map->first_ip || ip > map->last_ip)
-+ return -ERANGE;
-+ if (!test_and_clear_bit(IPSET_MACIP_ISSET,
-+ &table[ip - map->first_ip].flags))
-+ return -EEXIST;
-+
-+ *hash_ip = ip;
-+ DP("%u.%u.%u.%u, %u.%u.%u.%u", HIPQUAD(ip), HIPQUAD(*hash_ip));
-+ return 0;
-+}
-+
-+static int
-+delip(struct ip_set *set, const void *data, size_t size,
-+ ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_req_macipmap *req =
-+ (struct ip_set_req_macipmap *) data;
-+
-+ if (size != sizeof(struct ip_set_req_macipmap)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_macipmap),
-+ size);
-+ return -EINVAL;
-+ }
-+ return __delip(set, req->ip, hash_ip);
-+}
-+
-+static int
-+delip_kernel(struct ip_set *set, const struct sk_buff *skb,
-+ u_int32_t flags, ip_set_ip_t *hash_ip)
-+{
-+ return __delip(set,
-+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr
-+ : skb->nh.iph->daddr),
-+ hash_ip);
-+}
-+
-+static inline size_t members_size(ip_set_id_t from, ip_set_id_t to)
-+{
-+ return (size_t)((to - from + 1) * sizeof(struct ip_set_macip));
-+}
-+
-+static int create(struct ip_set *set, const void *data, size_t size)
-+{
-+ int newbytes;
-+ struct ip_set_req_macipmap_create *req =
-+ (struct ip_set_req_macipmap_create *) data;
-+ struct ip_set_macipmap *map;
-+
-+ if (size != sizeof(struct ip_set_req_macipmap_create)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_macipmap_create),
-+ size);
-+ return -EINVAL;
-+ }
-+
-+ DP("from %u.%u.%u.%u to %u.%u.%u.%u",
-+ HIPQUAD(req->from), HIPQUAD(req->to));
-+
-+ if (req->from > req->to) {
-+ DP("bad ip range");
-+ return -ENOEXEC;
-+ }
-+
-+ if (req->to - req->from > MAX_RANGE) {
-+ ip_set_printk("range too big (max %d addresses)",
-+ MAX_RANGE);
-+ return -ENOEXEC;
-+ }
-+
-+ map = kmalloc(sizeof(struct ip_set_macipmap), GFP_KERNEL);
-+ if (!map) {
-+ DP("out of memory for %d bytes",
-+ sizeof(struct ip_set_macipmap));
-+ return -ENOMEM;
-+ }
-+ map->flags = req->flags;
-+ map->first_ip = req->from;
-+ map->last_ip = req->to;
-+ newbytes = members_size(map->first_ip, map->last_ip);
-+ map->members = ip_set_malloc(newbytes);
-+ DP("members: %u %p", newbytes, map->members);
-+ if (!map->members) {
-+ DP("out of memory for %d bytes", newbytes);
-+ kfree(map);
-+ return -ENOMEM;
-+ }
-+ memset(map->members, 0, newbytes);
-+
-+ set->data = map;
-+ return 0;
-+}
-+
-+static void destroy(struct ip_set *set)
-+{
-+ struct ip_set_macipmap *map =
-+ (struct ip_set_macipmap *) set->data;
-+
-+ ip_set_free(map->members, members_size(map->first_ip, map->last_ip));
-+ kfree(map);
-+
-+ set->data = NULL;
-+}
-+
-+static void flush(struct ip_set *set)
-+{
-+ struct ip_set_macipmap *map =
-+ (struct ip_set_macipmap *) set->data;
-+ memset(map->members, 0, members_size(map->first_ip, map->last_ip));
-+}
-+
-+static void list_header(const struct ip_set *set, void *data)
-+{
-+ struct ip_set_macipmap *map =
-+ (struct ip_set_macipmap *) set->data;
-+ struct ip_set_req_macipmap_create *header =
-+ (struct ip_set_req_macipmap_create *) data;
-+
-+ DP("list_header %x %x %u", map->first_ip, map->last_ip,
-+ map->flags);
-+
-+ header->from = map->first_ip;
-+ header->to = map->last_ip;
-+ header->flags = map->flags;
-+}
-+
-+static int list_members_size(const struct ip_set *set)
-+{
-+ struct ip_set_macipmap *map =
-+ (struct ip_set_macipmap *) set->data;
-+
-+ DP("%u", members_size(map->first_ip, map->last_ip));
-+ return members_size(map->first_ip, map->last_ip);
-+}
-+
-+static void list_members(const struct ip_set *set, void *data)
-+{
-+ struct ip_set_macipmap *map =
-+ (struct ip_set_macipmap *) set->data;
-+
-+ int bytes = members_size(map->first_ip, map->last_ip);
-+
-+ DP("members: %u %p", bytes, map->members);
-+ memcpy(data, map->members, bytes);
-+}
-+
-+static struct ip_set_type ip_set_macipmap = {
-+ .typename = SETTYPE_NAME,
-+ .typecode = IPSET_TYPE_IP,
-+ .protocol_version = IP_SET_PROTOCOL_VERSION,
-+ .create = &create,
-+ .destroy = &destroy,
-+ .flush = &flush,
-+ .reqsize = sizeof(struct ip_set_req_macipmap),
-+ .addip = &addip,
-+ .addip_kernel = &addip_kernel,
-+ .delip = &delip,
-+ .delip_kernel = &delip_kernel,
-+ .testip = &testip,
-+ .testip_kernel = &testip_kernel,
-+ .header_size = sizeof(struct ip_set_req_macipmap_create),
-+ .list_header = &list_header,
-+ .list_members_size = &list_members_size,
-+ .list_members = &list_members,
-+ .me = THIS_MODULE,
-+};
-+
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-+MODULE_DESCRIPTION("macipmap type of IP sets");
-+
-+static int __init init(void)
-+{
-+ return ip_set_register_set_type(&ip_set_macipmap);
-+}
-+
-+static void __exit fini(void)
-+{
-+ /* FIXME: possible race with ip_set_create() */
-+ ip_set_unregister_set_type(&ip_set_macipmap);
-+}
-+
-+module_init(init);
-+module_exit(fini);
-diff -Naur linux-old/net/ipv4/netfilter/ip_set_nethash.c linux-new/net/ipv4/netfilter/ip_set_nethash.c
---- linux-old/net/ipv4/netfilter/ip_set_nethash.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/net/ipv4/netfilter/ip_set_nethash.c 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,450 @@
-+/* Copyright (C) 2003-2004 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+/* Kernel module implementing a cidr nethash set */
-+
-+#include <linux/module.h>
-+#include <linux/ip.h>
-+#include <linux/skbuff.h>
-+#include <linux/netfilter_ipv4/ip_tables.h>
-+#include <linux/netfilter_ipv4/ip_set.h>
-+#include <linux/errno.h>
-+#include <asm/uaccess.h>
-+#include <asm/bitops.h>
-+#include <asm/softirq.h>
-+#include <linux/spinlock.h>
-+#include <linux/vmalloc.h>
-+#include <linux/random.h>
-+
-+#include <net/ip.h>
-+
-+#include <linux/netfilter_ipv4/ip_set_malloc.h>
-+#include <linux/netfilter_ipv4/ip_set_nethash.h>
-+#include <linux/netfilter_ipv4/ip_set_jhash.h>
-+#include <linux/netfilter_ipv4/ip_set_prime.h>
-+
-+static inline __u32
-+jhash_ip(const struct ip_set_nethash *map, ip_set_ip_t ip)
-+{
-+ return jhash_1word(ip, map->initval);
-+}
-+
-+static inline __u32
-+randhash_ip(const struct ip_set_nethash *map, ip_set_ip_t ip)
-+{
-+ return (1 + ip % map->prime);
-+}
-+
-+static inline __u32
-+hash_id_cidr(struct ip_set_nethash *map,
-+ ip_set_ip_t ip,
-+ unsigned char cidr,
-+ ip_set_ip_t *hash_ip)
-+{
-+ __u32 jhash, randhash, id;
-+ u_int16_t i;
-+
-+ *hash_ip = pack(ip, cidr);
-+ jhash = jhash_ip(map, *hash_ip);
-+ randhash = randhash_ip(map, *hash_ip);
-+
-+ for (i = 0; i < map->probes; i++) {
-+ id = (jhash + i * randhash) % map->hashsize;
-+ DP("hash key: %u", id);
-+ if (map->members[id] == *hash_ip)
-+ return id;
-+ }
-+ return UINT_MAX;
-+}
-+
-+static inline __u32
-+hash_id(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data;
-+ __u32 id = UINT_MAX;
-+ int i;
-+
-+ for (i = 0; i < 30 && map->cidr[i]; i++) {
-+ id = hash_id_cidr(map, ip, map->cidr[i], hash_ip);
-+ if (id != UINT_MAX)
-+ break;
-+ }
-+ return id;
-+}
-+
-+static inline int
-+__testip_cidr(struct ip_set *set, ip_set_ip_t ip, unsigned char cidr,
-+ ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data;
-+
-+ return (hash_id_cidr(map, ip, cidr, hash_ip) != UINT_MAX);
-+}
-+
-+static inline int
-+__testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip)
-+{
-+ return (hash_id(set, ip, hash_ip) != UINT_MAX);
-+}
-+
-+static int
-+testip(struct ip_set *set, const void *data, size_t size,
-+ ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_req_nethash *req =
-+ (struct ip_set_req_nethash *) data;
-+
-+ if (size != sizeof(struct ip_set_req_nethash)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_nethash),
-+ size);
-+ return -EINVAL;
-+ }
-+ return (req->cidr == 32 ? __testip(set, req->ip, hash_ip)
-+ : __testip_cidr(set, req->ip, req->cidr, hash_ip));
-+}
-+
-+static int
-+testip_kernel(struct ip_set *set, const struct sk_buff *skb,
-+ u_int32_t flags, ip_set_ip_t *hash_ip)
-+{
-+ return __testip(set,
-+ ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr
-+ : skb->nh.iph->daddr),
-+ hash_ip);
-+}
-+
-+static inline int
-+__addip_base(struct ip_set_nethash *map, ip_set_ip_t ip)
-+{
-+ __u32 jhash, randhash, probe;
-+ u_int16_t i;
-+
-+ jhash = jhash_ip(map, ip);
-+ randhash = randhash_ip(map, ip);
-+
-+ for (i = 0; i < map->probes; i++) {
-+ probe = (jhash + i * randhash) % map->hashsize;
-+ if (map->members[probe] == ip)
-+ return -EEXIST;
-+ if (!map->members[probe]) {
-+ map->members[probe] = ip;
-+ return 0;
-+ }
-+ }
-+ /* Trigger rehashing */
-+ return -EAGAIN;
-+}
-+
-+static inline int
-+__addip(struct ip_set_nethash *map, ip_set_ip_t ip, unsigned char cidr,
-+ ip_set_ip_t *hash_ip)
-+{
-+ *hash_ip = pack(ip, cidr);
-+ DP("%u.%u.%u.%u/%u, %u.%u.%u.%u", HIPQUAD(ip), cidr, HIPQUAD(*hash_ip));
-+
-+ return __addip_base(map, *hash_ip);
-+}
-+
-+static void
-+update_cidr_sizes(struct ip_set_nethash *map, unsigned char cidr)
-+{
-+ unsigned char next;
-+ int i;
-+
-+ for (i = 0; i < 30 && map->cidr[i]; i++) {
-+ if (map->cidr[i] == cidr) {
-+ return;
-+ } else if (map->cidr[i] < cidr) {
-+ next = map->cidr[i];
-+ map->cidr[i] = cidr;
-+ cidr = next;
-+ }
-+ }
-+ if (i < 30)
-+ map->cidr[i] = cidr;
-+}
-+
-+static int
-+addip(struct ip_set *set, const void *data, size_t size,
-+ ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_req_nethash *req =
-+ (struct ip_set_req_nethash *) data;
-+ int ret;
-+
-+ if (size != sizeof(struct ip_set_req_nethash)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_nethash),
-+ size);
-+ return -EINVAL;
-+ }
-+ ret = __addip((struct ip_set_nethash *) set->data,
-+ req->ip, req->cidr, hash_ip);
-+
-+ if (ret == 0)
-+ update_cidr_sizes((struct ip_set_nethash *) set->data,
-+ req->cidr);
-+
-+ return ret;
-+}
-+
-+static int
-+addip_kernel(struct ip_set *set, const struct sk_buff *skb,
-+ u_int32_t flags, ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data;
-+ int ret = -ERANGE;
-+ ip_set_ip_t ip = ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr
-+ : skb->nh.iph->daddr);
-+
-+ if (map->cidr[0])
-+ ret = __addip(map, ip, map->cidr[0], hash_ip);
-+
-+ return ret;
-+}
-+
-+static int retry(struct ip_set *set)
-+{
-+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data;
-+ ip_set_ip_t *members;
-+ u_int32_t i, hashsize;
-+ unsigned newbytes;
-+ int res;
-+ struct ip_set_nethash tmp = {
-+ .hashsize = map->hashsize,
-+ .probes = map->probes,
-+ .resize = map->resize
-+ };
-+
-+ if (map->resize == 0)
-+ return -ERANGE;
-+
-+ memcpy(tmp.cidr, map->cidr, 30 * sizeof(unsigned char));
-+ again:
-+ res = 0;
-+
-+ /* Calculate new parameters */
-+ get_random_bytes(&tmp.initval, 4);
-+ hashsize = tmp.hashsize + (tmp.hashsize * map->resize)/100;
-+ if (hashsize == tmp.hashsize)
-+ hashsize++;
-+ tmp.prime = make_prime(hashsize);
-+
-+ ip_set_printk("rehashing of set %s triggered: "
-+ "hashsize grows from %u to %u",
-+ set->name, tmp.hashsize, hashsize);
-+ tmp.hashsize = hashsize;
-+
-+ newbytes = hashsize * sizeof(ip_set_ip_t);
-+ tmp.members = ip_set_malloc(newbytes);
-+ if (!tmp.members) {
-+ DP("out of memory for %d bytes", newbytes);
-+ return -ENOMEM;
-+ }
-+ memset(tmp.members, 0, newbytes);
-+
-+ write_lock_bh(&set->lock);
-+ map = (struct ip_set_nethash *) set->data; /* Play safe */
-+ for (i = 0; i < map->hashsize && res == 0; i++) {
-+ if (map->members[i])
-+ res = __addip_base(&tmp, map->members[i]);
-+ }
-+ if (res) {
-+ /* Failure, try again */
-+ write_unlock_bh(&set->lock);
-+ ip_set_free(tmp.members, newbytes);
-+ goto again;
-+ }
-+
-+ /* Success at resizing! */
-+ members = map->members;
-+ hashsize = map->hashsize;
-+
-+ map->initval = tmp.initval;
-+ map->prime = tmp.prime;
-+ map->hashsize = tmp.hashsize;
-+ map->members = tmp.members;
-+ write_unlock_bh(&set->lock);
-+
-+ ip_set_free(members, hashsize * sizeof(ip_set_ip_t));
-+
-+ return 0;
-+}
-+
-+static inline int
-+__delip(struct ip_set_nethash *map, ip_set_ip_t ip, unsigned char cidr,
-+ ip_set_ip_t *hash_ip)
-+{
-+ ip_set_ip_t id = hash_id_cidr(map, ip, cidr, hash_ip);
-+
-+ if (id == UINT_MAX)
-+ return -EEXIST;
-+
-+ map->members[id] = 0;
-+ return 0;
-+}
-+
-+static int
-+delip(struct ip_set *set, const void *data, size_t size,
-+ ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_req_nethash *req =
-+ (struct ip_set_req_nethash *) data;
-+
-+ if (size != sizeof(struct ip_set_req_nethash)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_nethash),
-+ size);
-+ return -EINVAL;
-+ }
-+ /* TODO: no garbage collection in map->cidr */
-+ return __delip((struct ip_set_nethash *) set->data,
-+ req->ip, req->cidr, hash_ip);
-+}
-+
-+static int
-+delip_kernel(struct ip_set *set, const struct sk_buff *skb,
-+ u_int32_t flags, ip_set_ip_t *hash_ip)
-+{
-+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data;
-+ int ret = -ERANGE;
-+ ip_set_ip_t ip = ntohl(flags & IPSET_SRC ? skb->nh.iph->saddr
-+ : skb->nh.iph->daddr);
-+
-+ if (map->cidr[0])
-+ ret = __delip(map, ip, map->cidr[0], hash_ip);
-+
-+ return ret;
-+}
-+
-+static int create(struct ip_set *set, const void *data, size_t size)
-+{
-+ unsigned newbytes;
-+ struct ip_set_req_nethash_create *req =
-+ (struct ip_set_req_nethash_create *) data;
-+ struct ip_set_nethash *map;
-+
-+ if (size != sizeof(struct ip_set_req_nethash_create)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_nethash_create),
-+ size);
-+ return -EINVAL;
-+ }
-+
-+ if (req->hashsize < 1) {
-+ ip_set_printk("hashsize too small");
-+ return -ENOEXEC;
-+ }
-+
-+ map = kmalloc(sizeof(struct ip_set_nethash), GFP_KERNEL);
-+ if (!map) {
-+ DP("out of memory for %d bytes",
-+ sizeof(struct ip_set_nethash));
-+ return -ENOMEM;
-+ }
-+ get_random_bytes(&map->initval, 4);
-+ map->prime = make_prime(req->hashsize);
-+ map->hashsize = req->hashsize;
-+ map->probes = req->probes;
-+ map->resize = req->resize;
-+ memset(map->cidr, 0, 30 * sizeof(unsigned char));
-+ newbytes = map->hashsize * sizeof(ip_set_ip_t);
-+ map->members = ip_set_malloc(newbytes);
-+ if (!map->members) {
-+ DP("out of memory for %d bytes", newbytes);
-+ kfree(map);
-+ return -ENOMEM;
-+ }
-+ memset(map->members, 0, newbytes);
-+
-+ set->data = map;
-+ return 0;
-+}
-+
-+static void destroy(struct ip_set *set)
-+{
-+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data;
-+
-+ ip_set_free(map->members, map->hashsize * sizeof(ip_set_ip_t));
-+ kfree(map);
-+
-+ set->data = NULL;
-+}
-+
-+static void flush(struct ip_set *set)
-+{
-+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data;
-+ memset(map->members, 0, map->hashsize * sizeof(ip_set_ip_t));
-+ memset(map->cidr, 0, 30 * sizeof(unsigned char));
-+}
-+
-+static void list_header(const struct ip_set *set, void *data)
-+{
-+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data;
-+ struct ip_set_req_nethash_create *header =
-+ (struct ip_set_req_nethash_create *) data;
-+
-+ header->hashsize = map->hashsize;
-+ header->probes = map->probes;
-+ header->resize = map->resize;
-+}
-+
-+static int list_members_size(const struct ip_set *set)
-+{
-+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data;
-+
-+ return (map->hashsize * sizeof(ip_set_ip_t));
-+}
-+
-+static void list_members(const struct ip_set *set, void *data)
-+{
-+ struct ip_set_nethash *map = (struct ip_set_nethash *) set->data;
-+ int bytes = map->hashsize * sizeof(ip_set_ip_t);
-+
-+ memcpy(data, map->members, bytes);
-+}
-+
-+static struct ip_set_type ip_set_nethash = {
-+ .typename = SETTYPE_NAME,
-+ .typecode = IPSET_TYPE_IP,
-+ .protocol_version = IP_SET_PROTOCOL_VERSION,
-+ .create = &create,
-+ .destroy = &destroy,
-+ .flush = &flush,
-+ .reqsize = sizeof(struct ip_set_req_nethash),
-+ .addip = &addip,
-+ .addip_kernel = &addip_kernel,
-+ .retry = &retry,
-+ .delip = &delip,
-+ .delip_kernel = &delip_kernel,
-+ .testip = &testip,
-+ .testip_kernel = &testip_kernel,
-+ .header_size = sizeof(struct ip_set_req_nethash_create),
-+ .list_header = &list_header,
-+ .list_members_size = &list_members_size,
-+ .list_members = &list_members,
-+ .me = THIS_MODULE,
-+};
-+
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-+MODULE_DESCRIPTION("nethash type of IP sets");
-+
-+static int __init init(void)
-+{
-+ return ip_set_register_set_type(&ip_set_nethash);
-+}
-+
-+static void __exit fini(void)
-+{
-+ /* FIXME: possible race with ip_set_create() */
-+ ip_set_unregister_set_type(&ip_set_nethash);
-+}
-+
-+module_init(init);
-+module_exit(fini);
-diff -Naur linux-old/net/ipv4/netfilter/ip_set_portmap.c linux-new/net/ipv4/netfilter/ip_set_portmap.c
---- linux-old/net/ipv4/netfilter/ip_set_portmap.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/net/ipv4/netfilter/ip_set_portmap.c 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,321 @@
-+/* Copyright (C) 2003-2004 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+/* Kernel module implementing a port set type as a bitmap */
-+
-+#include <linux/module.h>
-+#include <linux/ip.h>
-+#include <linux/tcp.h>
-+#include <linux/udp.h>
-+#include <linux/skbuff.h>
-+#include <linux/netfilter_ipv4/ip_tables.h>
-+#include <linux/netfilter_ipv4/ip_set.h>
-+#include <linux/errno.h>
-+#include <asm/uaccess.h>
-+#include <asm/bitops.h>
-+#include <asm/softirq.h>
-+#include <linux/spinlock.h>
-+
-+#include <net/ip.h>
-+
-+#include <linux/netfilter_ipv4/ip_set_portmap.h>
-+
-+static inline ip_set_ip_t
-+get_port(const struct sk_buff *skb, u_int32_t flags)
-+{
-+ struct iphdr *iph = skb->nh.iph;
-+ u_int16_t offset = ntohs(iph->frag_off) & IP_OFFSET;
-+
-+ switch (iph->protocol) {
-+ case IPPROTO_TCP: {
-+ struct tcphdr *tcph = (struct tcphdr *)((u_int32_t *)iph + iph->ihl);
-+
-+ /* See comments at tcp_match in ip_tables.c */
-+ if (offset != 0
-+ || (offset == 0
-+ && (skb->len - iph->ihl * 4) < sizeof(struct tcphdr)))
-+ return INVALID_PORT;
-+
-+ return ntohs(flags & IPSET_SRC ?
-+ tcph->source : tcph->dest);
-+ }
-+ case IPPROTO_UDP: {
-+ struct udphdr *udph = (struct udphdr *)((u_int32_t *)iph + iph->ihl);
-+
-+ if (offset != 0
-+ || (offset == 0
-+ && (skb->len - iph->ihl * 4) < sizeof(struct udphdr)))
-+ return INVALID_PORT;
-+
-+ return ntohs(flags & IPSET_SRC ?
-+ udph->source : udph->dest);
-+ }
-+ default:
-+ return INVALID_PORT;
-+ }
-+}
-+
-+static inline int
-+__testport(struct ip_set *set, ip_set_ip_t port, ip_set_ip_t *hash_port)
-+{
-+ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data;
-+
-+ if (port < map->first_port || port > map->last_port)
-+ return -ERANGE;
-+
-+ *hash_port = port;
-+ DP("set: %s, port:%u, %u", set->name, port, *hash_port);
-+ return !!test_bit(port - map->first_port, map->members);
-+}
-+
-+static int
-+testport(struct ip_set *set, const void *data, size_t size,
-+ ip_set_ip_t *hash_port)
-+{
-+ struct ip_set_req_portmap *req =
-+ (struct ip_set_req_portmap *) data;
-+
-+ if (size != sizeof(struct ip_set_req_portmap)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_portmap),
-+ size);
-+ return -EINVAL;
-+ }
-+ return __testport(set, req->port, hash_port);
-+}
-+
-+static int
-+testport_kernel(struct ip_set *set, const struct sk_buff *skb,
-+ u_int32_t flags, ip_set_ip_t *hash_port)
-+{
-+ int res;
-+ ip_set_ip_t port = get_port(skb, flags);
-+
-+ DP("flag %s port %u", flags & IPSET_SRC ? "SRC" : "DST", port);
-+ if (port == INVALID_PORT)
-+ return 0;
-+
-+ res = __testport(set, port, hash_port);
-+
-+ return (res < 0 ? 0 : res);
-+}
-+
-+static inline int
-+__addport(struct ip_set *set, ip_set_ip_t port, ip_set_ip_t *hash_port)
-+{
-+ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data;
-+
-+ if (port < map->first_port || port > map->last_port)
-+ return -ERANGE;
-+ if (test_and_set_bit(port - map->first_port, map->members))
-+ return -EEXIST;
-+
-+ *hash_port = port;
-+ DP("port %u", port);
-+ return 0;
-+}
-+
-+static int
-+addport(struct ip_set *set, const void *data, size_t size,
-+ ip_set_ip_t *hash_port)
-+{
-+ struct ip_set_req_portmap *req =
-+ (struct ip_set_req_portmap *) data;
-+
-+ if (size != sizeof(struct ip_set_req_portmap)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_portmap),
-+ size);
-+ return -EINVAL;
-+ }
-+ return __addport(set, req->port, hash_port);
-+}
-+
-+static int
-+addport_kernel(struct ip_set *set, const struct sk_buff *skb,
-+ u_int32_t flags, ip_set_ip_t *hash_port)
-+{
-+ ip_set_ip_t port = get_port(skb, flags);
-+
-+ if (port == INVALID_PORT)
-+ return -EINVAL;
-+
-+ return __addport(set, port, hash_port);
-+}
-+
-+static inline int
-+__delport(struct ip_set *set, ip_set_ip_t port, ip_set_ip_t *hash_port)
-+{
-+ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data;
-+
-+ if (port < map->first_port || port > map->last_port)
-+ return -ERANGE;
-+ if (!test_and_clear_bit(port - map->first_port, map->members))
-+ return -EEXIST;
-+
-+ *hash_port = port;
-+ DP("port %u", port);
-+ return 0;
-+}
-+
-+static int
-+delport(struct ip_set *set, const void *data, size_t size,
-+ ip_set_ip_t *hash_port)
-+{
-+ struct ip_set_req_portmap *req =
-+ (struct ip_set_req_portmap *) data;
-+
-+ if (size != sizeof(struct ip_set_req_portmap)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_portmap),
-+ size);
-+ return -EINVAL;
-+ }
-+ return __delport(set, req->port, hash_port);
-+}
-+
-+static int
-+delport_kernel(struct ip_set *set, const struct sk_buff *skb,
-+ u_int32_t flags, ip_set_ip_t *hash_port)
-+{
-+ ip_set_ip_t port = get_port(skb, flags);
-+
-+ if (port == INVALID_PORT)
-+ return -EINVAL;
-+
-+ return __delport(set, port, hash_port);
-+}
-+
-+static int create(struct ip_set *set, const void *data, size_t size)
-+{
-+ int newbytes;
-+ struct ip_set_req_portmap_create *req =
-+ (struct ip_set_req_portmap_create *) data;
-+ struct ip_set_portmap *map;
-+
-+ if (size != sizeof(struct ip_set_req_portmap_create)) {
-+ ip_set_printk("data length wrong (want %zu, have %zu)",
-+ sizeof(struct ip_set_req_portmap_create),
-+ size);
-+ return -EINVAL;
-+ }
-+
-+ DP("from %u to %u", req->from, req->to);
-+
-+ if (req->from > req->to) {
-+ DP("bad port range");
-+ return -ENOEXEC;
-+ }
-+
-+ if (req->to - req->from > MAX_RANGE) {
-+ ip_set_printk("range too big (max %d ports)",
-+ MAX_RANGE);
-+ return -ENOEXEC;
-+ }
-+
-+ map = kmalloc(sizeof(struct ip_set_portmap), GFP_KERNEL);
-+ if (!map) {
-+ DP("out of memory for %d bytes",
-+ sizeof(struct ip_set_portmap));
-+ return -ENOMEM;
-+ }
-+ map->first_port = req->from;
-+ map->last_port = req->to;
-+ newbytes = bitmap_bytes(req->from, req->to);
-+ map->members = kmalloc(newbytes, GFP_KERNEL);
-+ if (!map->members) {
-+ DP("out of memory for %d bytes", newbytes);
-+ kfree(map);
-+ return -ENOMEM;
-+ }
-+ memset(map->members, 0, newbytes);
-+
-+ set->data = map;
-+ return 0;
-+}
-+
-+static void destroy(struct ip_set *set)
-+{
-+ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data;
-+
-+ kfree(map->members);
-+ kfree(map);
-+
-+ set->data = NULL;
-+}
-+
-+static void flush(struct ip_set *set)
-+{
-+ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data;
-+ memset(map->members, 0, bitmap_bytes(map->first_port, map->last_port));
-+}
-+
-+static void list_header(const struct ip_set *set, void *data)
-+{
-+ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data;
-+ struct ip_set_req_portmap_create *header =
-+ (struct ip_set_req_portmap_create *) data;
-+
-+ DP("list_header %u %u", map->first_port, map->last_port);
-+
-+ header->from = map->first_port;
-+ header->to = map->last_port;
-+}
-+
-+static int list_members_size(const struct ip_set *set)
-+{
-+ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data;
-+
-+ return bitmap_bytes(map->first_port, map->last_port);
-+}
-+
-+static void list_members(const struct ip_set *set, void *data)
-+{
-+ struct ip_set_portmap *map = (struct ip_set_portmap *) set->data;
-+ int bytes = bitmap_bytes(map->first_port, map->last_port);
-+
-+ memcpy(data, map->members, bytes);
-+}
-+
-+static struct ip_set_type ip_set_portmap = {
-+ .typename = SETTYPE_NAME,
-+ .typecode = IPSET_TYPE_PORT,
-+ .protocol_version = IP_SET_PROTOCOL_VERSION,
-+ .create = &create,
-+ .destroy = &destroy,
-+ .flush = &flush,
-+ .reqsize = sizeof(struct ip_set_req_portmap),
-+ .addip = &addport,
-+ .addip_kernel = &addport_kernel,
-+ .delip = &delport,
-+ .delip_kernel = &delport_kernel,
-+ .testip = &testport,
-+ .testip_kernel = &testport_kernel,
-+ .header_size = sizeof(struct ip_set_req_portmap_create),
-+ .list_header = &list_header,
-+ .list_members_size = &list_members_size,
-+ .list_members = &list_members,
-+ .me = THIS_MODULE,
-+};
-+
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-+MODULE_DESCRIPTION("portmap type of IP sets");
-+
-+static int __init init(void)
-+{
-+ return ip_set_register_set_type(&ip_set_portmap);
-+}
-+
-+static void __exit fini(void)
-+{
-+ /* FIXME: possible race with ip_set_create() */
-+ ip_set_unregister_set_type(&ip_set_portmap);
-+}
-+
-+module_init(init);
-+module_exit(fini);
-diff -Naur linux-old/net/ipv4/netfilter/ipt_set.c linux-new/net/ipv4/netfilter/ipt_set.c
---- linux-old/net/ipv4/netfilter/ipt_set.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/net/ipv4/netfilter/ipt_set.c 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,114 @@
-+/* Copyright (C) 2000-2002 Joakim Axelsson <gozem@linux.nu>
-+ * Patrick Schaaf <bof@bof.de>
-+ * Martin Josefsson <gandalf@wlug.westbo.se>
-+ * Copyright (C) 2003-2004 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+/* Kernel module to match an IP set. */
-+
-+#include <linux/module.h>
-+#include <linux/ip.h>
-+#include <linux/skbuff.h>
-+
-+#include <linux/netfilter_ipv4/ip_tables.h>
-+#include <linux/netfilter_ipv4/ip_set.h>
-+#include <linux/netfilter_ipv4/ipt_set.h>
-+
-+static inline int
-+match_set(const struct ipt_set_info *info,
-+ const struct sk_buff *skb,
-+ int inv)
-+{
-+ if (ip_set_testip_kernel(info->index, skb, info->flags))
-+ inv = !inv;
-+ return inv;
-+}
-+
-+static int
-+match(const struct sk_buff *skb,
-+ const struct net_device *in,
-+ const struct net_device *out,
-+ const void *matchinfo,
-+ int offset,
-+ const void *hdr,
-+ u_int16_t datalen,
-+ int *hotdrop)
-+{
-+ const struct ipt_set_info_match *info = matchinfo;
-+
-+ return match_set(&info->match_set,
-+ skb,
-+ info->match_set.flags[0] & IPSET_MATCH_INV);
-+}
-+
-+static int
-+checkentry(const char *tablename,
-+ const struct ipt_ip *ip,
-+ void *matchinfo,
-+ unsigned int matchsize,
-+ unsigned int hook_mask)
-+{
-+ struct ipt_set_info_match *info =
-+ (struct ipt_set_info_match *) matchinfo;
-+ ip_set_id_t index;
-+
-+ if (matchsize != IPT_ALIGN(sizeof(struct ipt_set_info_match))) {
-+ ip_set_printk("invalid matchsize %d", matchsize);
-+ return 0;
-+ }
-+
-+ index = ip_set_get_byindex(info->match_set.index);
-+
-+ if (index == IP_SET_INVALID_ID) {
-+ ip_set_printk("Cannot find set indentified by id %u to match",
-+ info->match_set.index);
-+ return 0; /* error */
-+ }
-+ if (info->match_set.flags[IP_SET_MAX_BINDINGS] != 0) {
-+ ip_set_printk("That's nasty!");
-+ return 0; /* error */
-+ }
-+
-+ return 1;
-+}
-+
-+static void destroy(void *matchinfo, unsigned int matchsize)
-+{
-+ struct ipt_set_info_match *info = matchinfo;
-+
-+ if (matchsize != IPT_ALIGN(sizeof(struct ipt_set_info_match))) {
-+ ip_set_printk("invalid matchsize %d", matchsize);
-+ return;
-+ }
-+
-+ ip_set_put(info->match_set.index);
-+}
-+
-+static struct ipt_match set_match = {
-+ .name = "set",
-+ .match = &match,
-+ .checkentry = &checkentry,
-+ .destroy = &destroy,
-+ .me = THIS_MODULE
-+};
-+
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-+MODULE_DESCRIPTION("iptables IP set match module");
-+
-+static int __init init(void)
-+{
-+ return ipt_register_match(&set_match);
-+}
-+
-+static void __exit fini(void)
-+{
-+ ipt_unregister_match(&set_match);
-+}
-+
-+module_init(init);
-+module_exit(fini);
-diff -Naur linux-old/net/ipv4/netfilter/ipt_SET.c linux-new/net/ipv4/netfilter/ipt_SET.c
---- linux-old/net/ipv4/netfilter/ipt_SET.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-new/net/ipv4/netfilter/ipt_SET.c 2005-08-10 22:13:00.000000000 +0200
-@@ -0,0 +1,127 @@
-+/* Copyright (C) 2000-2002 Joakim Axelsson <gozem@linux.nu>
-+ * Patrick Schaaf <bof@bof.de>
-+ * Martin Josefsson <gandalf@wlug.westbo.se>
-+ * Copyright (C) 2003-2004 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+/* ipt_SET.c - netfilter target to manipulate IP sets */
-+
-+#include <linux/types.h>
-+#include <linux/ip.h>
-+#include <linux/timer.h>
-+#include <linux/module.h>
-+#include <linux/netfilter.h>
-+#include <linux/netdevice.h>
-+#include <linux/if.h>
-+#include <linux/inetdevice.h>
-+#include <net/protocol.h>
-+#include <net/checksum.h>
-+#include <linux/netfilter_ipv4.h>
-+#include <linux/netfilter_ipv4/ip_nat_rule.h>
-+#include <linux/netfilter_ipv4/ipt_set.h>
-+
-+static unsigned int
-+target(struct sk_buff **pskb,
-+ unsigned int hooknum,
-+ const struct net_device *in,
-+ const struct net_device *out,
-+ const void *targinfo,
-+ void *userinfo)
-+{
-+ const struct ipt_set_info_target *info = targinfo;
-+
-+ if (info->add_set.index != IP_SET_INVALID_ID)
-+ ip_set_addip_kernel(info->add_set.index,
-+ *pskb,
-+ info->add_set.flags);
-+ if (info->del_set.index != IP_SET_INVALID_ID)
-+ ip_set_delip_kernel(info->del_set.index,
-+ *pskb,
-+ info->del_set.flags);
-+
-+ return IPT_CONTINUE;
-+}
-+
-+static int
-+checkentry(const char *tablename,
-+ const struct ipt_entry *e,
-+ void *targinfo,
-+ unsigned int targinfosize, unsigned int hook_mask)
-+{
-+ struct ipt_set_info_target *info =
-+ (struct ipt_set_info_target *) targinfo;
-+ ip_set_id_t index;
-+
-+ if (targinfosize != IPT_ALIGN(sizeof(*info))) {
-+ DP("bad target info size %u", targinfosize);
-+ return 0;
-+ }
-+
-+ if (info->add_set.index != IP_SET_INVALID_ID) {
-+ index = ip_set_get_byindex(info->add_set.index);
-+ if (index == IP_SET_INVALID_ID) {
-+ ip_set_printk("cannot find add_set index %u as target",
-+ info->add_set.index);
-+ return 0; /* error */
-+ }
-+ }
-+
-+ if (info->del_set.index != IP_SET_INVALID_ID) {
-+ index = ip_set_get_byindex(info->del_set.index);
-+ if (index == IP_SET_INVALID_ID) {
-+ ip_set_printk("cannot find del_set index %u as target",
-+ info->del_set.index);
-+ return 0; /* error */
-+ }
-+ }
-+ if (info->add_set.flags[IP_SET_MAX_BINDINGS] != 0
-+ || info->del_set.flags[IP_SET_MAX_BINDINGS] != 0) {
-+ ip_set_printk("That's nasty!");
-+ return 0; /* error */
-+ }
-+ return 1;
-+}
-+
-+static void destroy(void *targetinfo, unsigned int targetsize)
-+{
-+ struct ipt_set_info_target *info = targetinfo;
-+
-+ if (targetsize != IPT_ALIGN(sizeof(struct ipt_set_info_target))) {
-+ ip_set_printk("invalid targetsize %d", targetsize);
-+ return;
-+ }
-+
-+ if (info->add_set.index != IP_SET_INVALID_ID)
-+ ip_set_put(info->add_set.index);
-+ if (info->del_set.index != IP_SET_INVALID_ID)
-+ ip_set_put(info->del_set.index);
-+}
-+
-+static struct ipt_target SET_target = {
-+ .name = "SET",
-+ .target = target,
-+ .checkentry = checkentry,
-+ .destroy = destroy,
-+ .me = THIS_MODULE
-+};
-+
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-+MODULE_DESCRIPTION("iptables IP set target module");
-+
-+static int __init init(void)
-+{
-+ return ipt_register_target(&SET_target);
-+}
-+
-+static void __exit fini(void)
-+{
-+ ipt_unregister_target(&SET_target);
-+}
-+
-+module_init(init);
-+module_exit(fini);
-diff -Naur linux-old/net/ipv4/netfilter/Makefile linux-new/net/ipv4/netfilter/Makefile
---- linux-old/net/ipv4/netfilter/Makefile 2005-07-23 23:34:46.000000000 +0200
-+++ linux-new/net/ipv4/netfilter/Makefile 2005-08-10 22:13:01.000000000 +0200
-@@ -75,6 +75,18 @@
- obj-$(CONFIG_IP_NF_MATCH_HELPER) += ipt_helper.o
- obj-$(CONFIG_IP_NF_MATCH_LIMIT) += ipt_limit.o
- obj-$(CONFIG_IP_NF_MATCH_MARK) += ipt_mark.o
-+obj-$(CONFIG_IP_NF_MATCH_SET) += ipt_set.o
-+obj-$(CONFIG_IP_NF_TARGET_SET) += ipt_SET.o
-+ifdef CONFIG_IP_NF_SET
-+ obj-$(CONFIG_IP_NF_SET) += ip_set.o
-+ export-objs += ip_set.o
-+endif
-+obj-$(CONFIG_IP_NF_SET_IPMAP) += ip_set_ipmap.o
-+obj-$(CONFIG_IP_NF_SET_PORTMAP) += ip_set_portmap.o
-+obj-$(CONFIG_IP_NF_SET_MACIPMAP) += ip_set_macipmap.o
-+obj-$(CONFIG_IP_NF_SET_IPHASH) += ip_set_iphash.o
-+obj-$(CONFIG_IP_NF_SET_NETHASH) += ip_set_nethash.o
-+obj-$(CONFIG_IP_NF_SET_IPTREE) += ip_set_iptree.o
- obj-$(CONFIG_IP_NF_MATCH_MAC) += ipt_mac.o
- obj-$(CONFIG_IP_NF_MATCH_IPP2P) += ipt_ipp2p.o
-
projects / openwrt.git / commitdiff