X-Git-Url: https://git.archive.openwrt.org/?p=project%2Fnetifd.git;a=blobdiff_plain;f=proto.c;h=b45a2d586cb094f37d2e7c06bec9cd15d391eb71;hp=1a260cc166b8b72521470adb34130771fee9651e;hb=f04430a371c2628193ced7dd1ff1a0f0dd01e70d;hpb=79368a64dbeba1bde4e03222ae82c1b22d66b37d

diff --git a/proto.c b/proto.c
index 1a260cc..b45a2d5 100644
--- a/proto.c
+++ b/proto.c
@@ -1,3 +1,16 @@
+/*
+ * netifd - network interface daemon
+ * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
+ *
+ * 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
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
 #include <string.h>
 #include <stdlib.h>
 #include <stdio.h>
@@ -6,88 +19,402 @@
 #include <netinet/in.h>
 
 #include "netifd.h"
+#include "system.h"
 #include "interface.h"
 #include "interface-ip.h"
 #include "proto.h"
 
 static struct avl_tree handlers;
 
-unsigned int
-parse_netmask_string(const char *str, bool v6)
+enum {
+	OPT_IPADDR,
+	OPT_IP6ADDR,
+	OPT_NETMASK,
+	OPT_BROADCAST,
+	OPT_GATEWAY,
+	OPT_IP6GW,
+	OPT_IP6PREFIX,
+	OPT_IP6ASSIGN,
+	__OPT_MAX,
+};
+
+static const struct blobmsg_policy proto_ip_attributes[__OPT_MAX] = {
+	[OPT_IPADDR] = { .name = "ipaddr", .type = BLOBMSG_TYPE_ARRAY },
+	[OPT_IP6ADDR] = { .name = "ip6addr", .type = BLOBMSG_TYPE_ARRAY },
+	[OPT_NETMASK] = { .name = "netmask", .type = BLOBMSG_TYPE_STRING },
+	[OPT_BROADCAST] = { .name = "broadcast", .type = BLOBMSG_TYPE_STRING },
+	[OPT_GATEWAY] = { .name = "gateway", .type = BLOBMSG_TYPE_STRING },
+	[OPT_IP6GW] = { .name = "ip6gw", .type = BLOBMSG_TYPE_STRING },
+	[OPT_IP6PREFIX] = { .name = "ip6prefix", .type = BLOBMSG_TYPE_ARRAY },
+	[OPT_IP6ASSIGN] = { .name = "ip6assign", .type = BLOBMSG_TYPE_INT32 },
+};
+
+static const union config_param_info proto_ip_attr_info[__OPT_MAX] = {
+	[OPT_IPADDR] = { .type = BLOBMSG_TYPE_STRING },
+	[OPT_IP6ADDR] = { .type = BLOBMSG_TYPE_STRING },
+	[OPT_IP6PREFIX] = { .type = BLOBMSG_TYPE_STRING },
+};
+
+const struct config_param_list proto_ip_attr = {
+	.n_params = __OPT_MAX,
+	.params = proto_ip_attributes,
+	.info = proto_ip_attr_info,
+};
+
+enum {
+	ADDR_IPADDR,
+	ADDR_MASK,
+	ADDR_BROADCAST,
+	ADDR_PTP,
+	__ADDR_MAX
+};
+
+static const struct blobmsg_policy proto_ip_addr[__ADDR_MAX] = {
+	[ADDR_IPADDR] = { .name = "ipaddr", .type = BLOBMSG_TYPE_STRING },
+	[ADDR_MASK] = { .name = "mask", .type = BLOBMSG_TYPE_STRING },
+	[ADDR_BROADCAST] = { .name = "broadcast", .type = BLOBMSG_TYPE_STRING },
+	[ADDR_PTP] = { .name = "ptp", .type = BLOBMSG_TYPE_STRING },
+};
+
+static struct device_addr *
+alloc_device_addr(bool v6, bool ext)
+{
+	struct device_addr *addr;
+
+	addr = calloc(1, sizeof(*addr));
+	addr->flags = v6 ? DEVADDR_INET6 : DEVADDR_INET4;
+	if (ext)
+		addr->flags |= DEVADDR_EXTERNAL;
+
+	return addr;
+}
+
+static bool
+parse_addr(struct interface *iface, const char *str, bool v6, int mask,
+	   bool ext, uint32_t broadcast)
+{
+	struct device_addr *addr;
+	int af = v6 ? AF_INET6 : AF_INET;
+
+	addr = alloc_device_addr(v6, ext);
+	if (!addr)
+		return false;
+
+	addr->mask = mask;
+	if (!parse_ip_and_netmask(af, str, &addr->addr, &addr->mask)) {
+		interface_add_error(iface, "proto", "INVALID_ADDRESS", &str, 1);
+		free(addr);
+		return false;
+	}
+
+	if (broadcast)
+		addr->broadcast = broadcast;
+
+	vlist_add(&iface->proto_ip.addr, &addr->node, &addr->flags);
+	return true;
+}
+
+static int
+parse_static_address_option(struct interface *iface, struct blob_attr *attr,
+			    bool v6, int netmask, bool ext, uint32_t broadcast)
 {
-	struct in_addr addr;
-	unsigned int ret;
-	char *err = NULL;
+	struct blob_attr *cur;
+	int n_addr = 0;
+	int rem;
+
+	blobmsg_for_each_attr(cur, attr, rem) {
+		if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
+			return -1;
+
+		n_addr++;
+		if (!parse_addr(iface, blobmsg_data(cur), v6, netmask, ext,
+				broadcast))
+			return -1;
+	}
+
+	return n_addr;
+}
+
+static struct device_addr *
+parse_address_item(struct blob_attr *attr, bool v6, bool ext)
+{
+	struct device_addr *addr;
+	struct blob_attr *tb[__ADDR_MAX];
+	struct blob_attr *cur;
+
+	if (blobmsg_type(attr) != BLOBMSG_TYPE_TABLE)
+		return NULL;
 
-	if (!strchr(str, '.')) {
-		ret = strtoul(str, &err, 0);
-		if (err && *err)
+	addr = alloc_device_addr(v6, ext);
+	if (!addr)
+		return NULL;
+
+	blobmsg_parse(proto_ip_addr, __ADDR_MAX, tb, blobmsg_data(attr), blobmsg_data_len(attr));
+
+	addr->mask = v6 ? 128 : 32;
+	if ((cur = tb[ADDR_MASK])) {
+		unsigned int new_mask;
+
+		new_mask = parse_netmask_string(blobmsg_data(cur), v6);
+		if (new_mask > addr->mask)
 			goto error;
 
-		return ret;
+		addr->mask = new_mask;
 	}
 
-	if (v6)
+	cur = tb[ADDR_IPADDR];
+	if (!cur)
 		goto error;
 
-	if (inet_aton(str, &addr) != 1)
+	if (!inet_pton(v6 ? AF_INET6 : AF_INET, blobmsg_data(cur), &addr->addr))
 		goto error;
 
-	return 32 - fls(~(ntohl(addr.s_addr)));
+	if (!v6) {
+		if ((cur = tb[ADDR_BROADCAST]) &&
+		    !inet_pton(AF_INET, blobmsg_data(cur), &addr->broadcast))
+			goto error;
+		if ((cur = tb[ADDR_PTP]) &&
+		    !inet_pton(AF_INET, blobmsg_data(cur), &addr->point_to_point))
+			goto error;
+	}
+
+	return addr;
 
 error:
-	return ~0;
+	free(addr);
+	return NULL;
+}
+
+static int
+parse_address_list(struct interface *iface, struct blob_attr *attr, bool v6,
+		   bool ext)
+{
+	struct device_addr *addr;
+	struct blob_attr *cur;
+	int n_addr = 0;
+	int rem;
+
+	blobmsg_for_each_attr(cur, attr, rem) {
+		addr = parse_address_item(cur, v6, ext);
+		if (!addr)
+			return -1;
+
+		n_addr++;
+		vlist_add(&iface->proto_ip.addr, &addr->node, &addr->flags);
+	}
+
+	return n_addr;
+}
+
+static bool
+parse_gateway_option(struct interface *iface, struct blob_attr *attr, bool v6)
+{
+	struct device_route *route;
+	const char *str = blobmsg_data(attr);
+	int af = v6 ? AF_INET6 : AF_INET;
+
+	route = calloc(1, sizeof(*route));
+	if (!inet_pton(af, str, &route->nexthop)) {
+		interface_add_error(iface, "proto", "INVALID_GATEWAY", &str, 1);
+		free(route);
+		return false;
+	}
+
+	route->mask = 0;
+	route->flags = (v6 ? DEVADDR_INET6 : DEVADDR_INET4);
+	vlist_add(&iface->proto_ip.route, &route->node, &route->flags);
+
+	return true;
 }
 
 static bool
-split_netmask(char *str, unsigned int *netmask, bool v6)
+parse_ip6assign_option(struct interface *iface, struct blob_attr *attr)
 {
-	char *delim = strchr(str, '/');
+	uint8_t oldval = iface->proto_ip.assignment_length;
+	uint8_t newval = blobmsg_get_u32(attr);
 
-	if (delim) {
-		*(delim++) = 0;
+	struct device_prefix *prefix;
+	list_for_each_entry(prefix, &prefixes, head) {
+		if (oldval && oldval != newval)
+			interface_ip_set_prefix_assignment(prefix, iface, 0);
 
-		*netmask = parse_netmask_string(delim, v6);
+		if (newval && newval <= 64)
+			interface_ip_set_prefix_assignment(prefix, iface, newval);
 	}
+
+	iface->proto_ip.assignment_length = newval;
 	return true;
 }
 
-static int
-parse_ip_and_netmask(int af, const char *str, void *addr, unsigned int *netmask)
+static bool
+parse_prefix_option(struct interface *iface, const char *str, size_t len)
 {
-	char *astr = alloca(strlen(str) + 1);
+	char buf[128] = {0}, *saveptr;
+	if (len > sizeof(buf))
+		return false;
+
+	memcpy(buf, str, len);
+	char *addrstr = strtok_r(buf, "/", &saveptr);
+	if (!addrstr)
+		return false;
+
+	char *lengthstr = strtok_r(NULL, ",", &saveptr);
+	if (!lengthstr)
+		return false;
+
+	char *prefstr = strtok_r(NULL, ",", &saveptr);
+	char *validstr = (!prefstr) ? NULL : strtok_r(NULL, ",", &saveptr);
+
+	uint32_t pref = (!prefstr) ? 0 : strtoul(prefstr, NULL, 10);
+	uint32_t valid = (!validstr) ? 0 : strtoul(validstr, NULL, 10);
+
+	uint8_t length = strtoul(lengthstr, NULL, 10);
+	if (length < 1 || length > 64)
+		return false;
 
-	strcpy(astr, str);
-	if (!split_netmask(astr, netmask, af == AF_INET6))
-		return 0;
+	struct in6_addr addr;
+	if (inet_pton(AF_INET6, addrstr, &addr) < 1)
+		return false;
 
-	if (af == AF_INET6) {
-		if (*netmask > 128)
-			return 0;
-	} else {
-		if (*netmask > 32)
-			return 0;
+	time_t now = system_get_rtime();
+	time_t preferred_until = 0;
+	if (prefstr && pref != 0xffffffffU)
+		preferred_until = pref + now;
+
+	time_t valid_until = 0;
+	if (validstr && valid != 0xffffffffU)
+		valid_until = valid + now;
+
+	interface_ip_add_device_prefix(iface, &addr, length,
+			valid_until, preferred_until);
+	return true;
+}
+
+static int
+parse_prefix_list(struct interface *iface, struct blob_attr *attr)
+{
+	struct blob_attr *cur;
+	int n_addr = 0;
+	int rem;
+
+	blobmsg_for_each_attr(cur, attr, rem) {
+		if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
+			return -1;
+
+		n_addr++;
+		if (!parse_prefix_option(iface, blobmsg_data(cur),
+				blobmsg_data_len(cur)))
+			return -1;
 	}
 
-	return inet_pton(af, astr, addr);
+	return n_addr;
 }
 
-struct device_addr *
-proto_parse_ip_addr_string(const char *str, bool v6, int mask)
+int
+proto_apply_static_ip_settings(struct interface *iface, struct blob_attr *attr)
 {
-	struct device_addr *addr;
-	int af = v6 ? AF_INET6 : AF_INET;
+	struct blob_attr *tb[__OPT_MAX];
+	struct blob_attr *cur;
+	const char *error;
+	unsigned int netmask = 32;
+	int n_v4 = 0, n_v6 = 0;
+	struct in_addr bcast = {};
+
+	blobmsg_parse(proto_ip_attributes, __OPT_MAX, tb, blob_data(attr), blob_len(attr));
+
+	if ((cur = tb[OPT_NETMASK])) {
+		netmask = parse_netmask_string(blobmsg_data(cur), false);
+		if (netmask > 32) {
+			error = "INVALID_NETMASK";
+			goto error;
+		}
+	}
 
-	addr = calloc(1, sizeof(*addr));
-	addr->flags = v6 ? DEVADDR_INET6 : DEVADDR_INET4;
-	addr->mask = mask;
-	if (!parse_ip_and_netmask(af, str, &addr->addr, &addr->mask)) {
-		free(addr);
-		return NULL;
+	if ((cur = tb[OPT_BROADCAST])) {
+		if (!inet_pton(AF_INET, blobmsg_data(cur), &bcast)) {
+			error = "INVALID_BROADCAST";
+			goto error;
+		}
 	}
-	return addr;
+
+	if ((cur = tb[OPT_IPADDR]))
+		n_v4 = parse_static_address_option(iface, cur, false,
+			netmask, false, bcast.s_addr);
+
+	if ((cur = tb[OPT_IP6ADDR]))
+		n_v6 = parse_static_address_option(iface, cur, true,
+			netmask, false, 0);
+
+	if ((cur = tb[OPT_IP6PREFIX]))
+		if (parse_prefix_list(iface, cur) < 0)
+			goto out;
+
+	if (n_v4 < 0 || n_v6 < 0)
+		goto out;
+
+	if ((cur = tb[OPT_GATEWAY])) {
+		if (n_v4 && !parse_gateway_option(iface, cur, false))
+			goto out;
+	}
+
+	if ((cur = tb[OPT_IP6GW])) {
+		if (n_v6 && !parse_gateway_option(iface, cur, true))
+			goto out;
+	}
+
+	if ((cur = tb[OPT_IP6ASSIGN]))
+		if (!parse_ip6assign_option(iface, cur))
+			goto out;
+
+	return 0;
+
+error:
+	interface_add_error(iface, "proto", error, NULL, 0);
+out:
+	return -1;
 }
 
+int
+proto_apply_ip_settings(struct interface *iface, struct blob_attr *attr, bool ext)
+{
+	struct blob_attr *tb[__OPT_MAX];
+	struct blob_attr *cur;
+	int n_v4 = 0, n_v6 = 0;
+
+	blobmsg_parse(proto_ip_attributes, __OPT_MAX, tb, blob_data(attr), blob_len(attr));
+
+	if ((cur = tb[OPT_IPADDR]))
+		n_v4 = parse_address_list(iface, cur, false, ext);
+
+	if ((cur = tb[OPT_IP6ADDR]))
+		n_v6 = parse_address_list(iface, cur, true, ext);
+
+	if ((cur = tb[OPT_IP6PREFIX]))
+		if (parse_prefix_list(iface, cur) < 0)
+			goto out;
+
+	if (n_v4 < 0 || n_v6 < 0)
+		goto out;
+
+	if ((cur = tb[OPT_GATEWAY])) {
+		if (n_v4 && !parse_gateway_option(iface, cur, false))
+			goto out;
+	}
+
+	if ((cur = tb[OPT_IP6GW])) {
+		if (n_v6 && !parse_gateway_option(iface, cur, true))
+			goto out;
+	}
+
+	if ((cur = tb[OPT_IP6ASSIGN]))
+		if (!parse_ip6assign_option(iface, cur))
+			goto out;
+
+	return 0;
+
+out:
+	return -1;
+}
 
 void add_proto_handler(struct proto_handler *p)
 {
@@ -155,6 +482,19 @@ get_proto_handler(const char *name)
 }
 
 void
+proto_dump_handlers(struct blob_buf *b)
+{
+	struct proto_handler *p;
+	void *c;
+
+	avl_for_each_element(&handlers, p, avl) {
+		c = blobmsg_open_table(b, p->name);
+		blobmsg_add_u8(b, "no_device", !!(p->flags & PROTO_FLAG_NODEV));
+		blobmsg_close_table(b, c);
+	}
+}
+
+void
 proto_init_interface(struct interface *iface, struct blob_attr *attr)
 {
 	const struct proto_handler *proto = iface->proto_handler;