* Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
* Copyright (C) 2013 Jo-Philipp Wich <jow@openwrt.org>
* Copyright (C) 2013 Steven Barth <steven@midlink.org>
+ * Copyright (C) 2014 Gioacchino Mazzurco <gio@eigenlab.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
#include <linux/rtnetlink.h>
#include <linux/sockios.h>
#include <linux/ip.h>
+#include <linux/if_addr.h>
#include <linux/if_link.h>
#include <linux/if_vlan.h>
#include <linux/if_bridge.h>
#include <linux/ip6_tunnel.h>
#include <linux/ethtool.h>
#include <linux/fib_rules.h>
+#include <linux/version.h>
#ifndef RTN_FAILED_POLICY
#define RTN_FAILED_POLICY 12
#endif
+#ifndef IFA_F_NOPREFIXROUTE
+#define IFA_F_NOPREFIXROUTE 0x200
+#endif
+
+#ifndef IFA_FLAGS
+#define IFA_FLAGS (IFA_MULTICAST + 1)
+#endif
+
+
#include <string.h>
#include <fcntl.h>
#include <glob.h>
#include <time.h>
+#include <unistd.h>
#include <netlink/msg.h>
#include <netlink/attr.h>
return true;
}
+static bool
+system_rtn_aton(const char *src, unsigned int *dst)
+{
+ char *e;
+ unsigned int n;
+
+ if (!strcmp(src, "local"))
+ n = RTN_LOCAL;
+ else if (!strcmp(src, "nat"))
+ n = RTN_NAT;
+ else if (!strcmp(src, "broadcast"))
+ n = RTN_BROADCAST;
+ else if (!strcmp(src, "anycast"))
+ n = RTN_ANYCAST;
+ else if (!strcmp(src, "multicast"))
+ n = RTN_MULTICAST;
+ else if (!strcmp(src, "prohibit"))
+ n = RTN_PROHIBIT;
+ else if (!strcmp(src, "unreachable"))
+ n = RTN_UNREACHABLE;
+ else if (!strcmp(src, "blackhole"))
+ n = RTN_BLACKHOLE;
+ else if (!strcmp(src, "xresolve"))
+ n = RTN_XRESOLVE;
+ else if (!strcmp(src, "unicast"))
+ n = RTN_UNICAST;
+ else if (!strcmp(src, "throw"))
+ n = RTN_THROW;
+ else if (!strcmp(src, "failed_policy"))
+ n = RTN_FAILED_POLICY;
+ else {
+ n = strtoul(src, &e, 0);
+ if (!e || *e || e == src || n > 255)
+ return false;
+ }
+
+ *dst = n;
+ return true;
+}
+
+static bool
+system_tos_aton(const char *src, unsigned *dst)
+{
+ char *e;
+
+ *dst = strtoul(src, &e, 16);
+ if (e == src || *e || *dst > 255)
+ return false;
+
+ return true;
+}
+
int system_init(void)
{
static struct event_socket rtnl_event;
system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6", dev->ifname, val);
}
+static void system_set_rpfilter(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/rp_filter", dev->ifname, val);
+}
+
+static void system_set_acceptlocal(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/accept_local", dev->ifname, val);
+}
+
+static void system_set_igmpversion(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/force_igmp_version", dev->ifname, val);
+}
+
+static void system_set_mldversion(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/force_mld_version", dev->ifname, val);
+}
+
+static void system_set_neigh4reachabletime(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/base_reachable_time_ms", dev->ifname, val);
+}
+
+static void system_set_neigh6reachabletime(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/base_reachable_time_ms", dev->ifname, val);
+}
+
+static void system_set_neigh4gcstaletime(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/gc_stale_time", dev->ifname, val);
+}
+
+static void system_set_neigh6gcstaletime(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/gc_stale_time", dev->ifname, val);
+}
+
+static void system_set_dadtransmits(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/dad_transmits", dev->ifname, val);
+}
+
+static void system_bridge_set_multicast_to_unicast(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/sys/class/net/%s/brport/multicast_to_unicast", dev->ifname, val);
+}
+
+static void system_bridge_set_hairpin_mode(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/sys/class/net/%s/brport/hairpin_mode", dev->ifname, val);
+}
+
+static void system_bridge_set_multicast_router(struct device *dev, const char *val, bool bridge)
+{
+ system_set_dev_sysctl(bridge ? "/sys/class/net/%s/bridge/multicast_router" :
+ "/sys/class/net/%s/brport/multicast_router",
+ dev->ifname, val);
+}
+
+static void system_bridge_set_robustness(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_startup_query_count",
+ dev->ifname, val);
+ system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_last_member_count",
+ dev->ifname, val);
+}
+
+static void system_bridge_set_query_interval(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_query_interval",
+ dev->ifname, val);
+}
+
+static void system_bridge_set_query_response_interval(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_query_response_interval",
+ dev->ifname, val);
+}
+
+static void system_bridge_set_last_member_interval(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_last_member_interval",
+ dev->ifname, val);
+}
+
+static void system_bridge_set_membership_interval(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_membership_interval",
+ dev->ifname, val);
+}
+
+static void system_bridge_set_other_querier_timeout(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier_interval",
+ dev->ifname, val);
+}
+
+static void system_bridge_set_startup_query_interval(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_startup_query_interval",
+ dev->ifname, val);
+}
+
+static void system_bridge_set_learning(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/sys/class/net/%s/brport/learning", dev->ifname, val);
+}
+
+static void system_bridge_set_unicast_flood(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/sys/class/net/%s/brport/unicast_flood", dev->ifname, val);
+}
+
static int system_get_sysctl(const char *path, char *buf, const size_t buf_sz)
{
int fd = -1, ret = -1;
dev->ifname, buf, buf_sz);
}
-#ifndef IFF_LOWER_UP
-#define IFF_LOWER_UP 0x10000
-#endif
+static int system_get_rpfilter(struct device *dev, char *buf, const size_t buf_sz)
+{
+ return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/rp_filter",
+ dev->ifname, buf, buf_sz);
+}
+
+static int system_get_acceptlocal(struct device *dev, char *buf, const size_t buf_sz)
+{
+ return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/accept_local",
+ dev->ifname, buf, buf_sz);
+}
+
+static int system_get_igmpversion(struct device *dev, char *buf, const size_t buf_sz)
+{
+ return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/force_igmp_version",
+ dev->ifname, buf, buf_sz);
+}
+
+static int system_get_mldversion(struct device *dev, char *buf, const size_t buf_sz)
+{
+ return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/force_mld_version",
+ dev->ifname, buf, buf_sz);
+}
+
+static int system_get_neigh4reachabletime(struct device *dev, char *buf, const size_t buf_sz)
+{
+ return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/base_reachable_time_ms",
+ dev->ifname, buf, buf_sz);
+}
+
+static int system_get_neigh6reachabletime(struct device *dev, char *buf, const size_t buf_sz)
+{
+ return system_get_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/base_reachable_time_ms",
+ dev->ifname, buf, buf_sz);
+}
+
+static int system_get_neigh4gcstaletime(struct device *dev, char *buf, const size_t buf_sz)
+{
+ return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/gc_stale_time",
+ dev->ifname, buf, buf_sz);
+}
+
+static int system_get_neigh6gcstaletime(struct device *dev, char *buf, const size_t buf_sz)
+{
+ return system_get_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/gc_stale_time",
+ dev->ifname, buf, buf_sz);
+}
+
+static int system_get_dadtransmits(struct device *dev, char *buf, const size_t buf_sz)
+{
+ return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/dad_transmits",
+ dev->ifname, buf, buf_sz);
+}
// Evaluate netlink messages
static int cb_rtnl_event(struct nl_msg *msg, void *arg)
{
struct nlmsghdr *nh = nlmsg_hdr(msg);
- struct ifinfomsg *ifi = NLMSG_DATA(nh);
struct nlattr *nla[__IFLA_MAX];
+ int link_state = 0;
+ char buf[10];
if (nh->nlmsg_type != RTM_NEWLINK)
goto out;
- nlmsg_parse(nh, sizeof(*ifi), nla, __IFLA_MAX - 1, NULL);
+ nlmsg_parse(nh, sizeof(struct ifinfomsg), nla, __IFLA_MAX - 1, NULL);
if (!nla[IFLA_IFNAME])
goto out;
- struct device *dev = device_get(nla_data(nla[IFLA_IFNAME]), false);
+ struct device *dev = device_find(nla_data(nla[IFLA_IFNAME]));
if (!dev)
goto out;
- device_set_ifindex(dev, ifi->ifi_index);
- device_set_link(dev, ifi->ifi_flags & IFF_LOWER_UP ? true : false);
+ if (!system_get_dev_sysctl("/sys/class/net/%s/carrier", dev->ifname, buf, sizeof(buf)))
+ link_state = strtoul(buf, NULL, 0);
+
+ device_set_link(dev, link_state ? true : false);
out:
return 0;
static char *system_get_bridge(const char *name, char *buf, int buflen)
{
char *path;
- ssize_t len;
+ ssize_t len = -1;
glob_t gl;
snprintf(buf, buflen, "/sys/devices/virtual/net/*/brif/%s/bridge", name);
if (glob(buf, GLOB_NOSORT, NULL, &gl) < 0)
return NULL;
- if (gl.gl_pathc == 0)
- return NULL;
+ if (gl.gl_pathc > 0)
+ len = readlink(gl.gl_pathv[0], buf, buflen);
+
+ globfree(&gl);
- len = readlink(gl.gl_pathv[0], buf, buflen);
if (len < 0)
return NULL;
return path + 1;
}
+static void
+system_bridge_set_wireless(struct device *bridge, struct device *dev)
+{
+ bool mcast_to_ucast = dev->wireless_ap;
+ bool hairpin = true;
+
+ if (bridge->settings.flags & DEV_OPT_MULTICAST_TO_UNICAST &&
+ !bridge->settings.multicast_to_unicast)
+ mcast_to_ucast = false;
+
+ if (!mcast_to_ucast || dev->wireless_isolate)
+ hairpin = false;
+
+ system_bridge_set_multicast_to_unicast(dev, mcast_to_ucast ? "1" : "0");
+ system_bridge_set_hairpin_mode(dev, hairpin ? "1" : "0");
+}
+
int system_bridge_addif(struct device *bridge, struct device *dev)
{
+ char buf[64];
char *oldbr;
+ int ret = 0;
oldbr = system_get_bridge(dev->ifname, dev_buf, sizeof(dev_buf));
- if (oldbr && !strcmp(oldbr, bridge->ifname))
- return 0;
+ if (!oldbr || strcmp(oldbr, bridge->ifname) != 0)
+ ret = system_bridge_if(bridge->ifname, dev, SIOCBRADDIF, NULL);
+
+ if (dev->wireless)
+ system_bridge_set_wireless(bridge, dev);
+
+ if (dev->settings.flags & DEV_OPT_MULTICAST_ROUTER) {
+ snprintf(buf, sizeof(buf), "%i", dev->settings.multicast_router);
+ system_bridge_set_multicast_router(dev, buf, false);
+ }
- return system_bridge_if(bridge->ifname, dev, SIOCBRADDIF, NULL);
+ if (dev->settings.flags & DEV_OPT_LEARNING &&
+ !dev->settings.learning)
+ system_bridge_set_learning(dev, "0");
+
+ if (dev->settings.flags & DEV_OPT_UNICAST_FLOOD &&
+ !dev->settings.unicast_flood)
+ system_bridge_set_unicast_flood(dev, "0");
+
+ return ret;
}
int system_bridge_delif(struct device *bridge, struct device *dev)
return system_bridge_if(bridge->ifname, dev, SIOCBRDELIF, NULL);
}
-static int system_if_resolve(struct device *dev)
+int system_if_resolve(struct device *dev)
{
struct ifreq ifr;
strncpy(ifr.ifr_name, dev->ifname, sizeof(ifr.ifr_name));
return (unsigned long) val * 100;
}
+static void system_bridge_conf_multicast_deps(struct device *bridge,
+ struct bridge_config *cfg,
+ char *buf,
+ int buf_len)
+{
+ int val;
+
+ if (cfg->flags & BRIDGE_OPT_ROBUSTNESS ||
+ cfg->flags & BRIDGE_OPT_QUERY_INTERVAL ||
+ cfg->flags & BRIDGE_OPT_QUERY_RESPONSE_INTERVAL) {
+ val = cfg->robustness * cfg->query_interval +
+ cfg->query_response_interval;
+
+ snprintf(buf, buf_len, "%i", val);
+ system_bridge_set_membership_interval(bridge, buf);
+
+ val = cfg->robustness * cfg->query_interval +
+ cfg->query_response_interval / 2;
+
+ snprintf(buf, buf_len, "%i", val);
+ system_bridge_set_other_querier_timeout(bridge, buf);
+ }
+
+ if (cfg->flags & BRIDGE_OPT_QUERY_INTERVAL) {
+ val = cfg->query_interval / 4;
+
+ snprintf(buf, buf_len, "%i", val);
+ system_bridge_set_startup_query_interval(bridge, buf);
+ }
+}
+
+static void system_bridge_conf_multicast(struct device *bridge,
+ struct bridge_config *cfg,
+ char *buf,
+ int buf_len)
+{
+ system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_snooping",
+ bridge->ifname, cfg->igmp_snoop ? "1" : "0");
+
+ system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier",
+ bridge->ifname, cfg->multicast_querier ? "1" : "0");
+
+ snprintf(buf, buf_len, "%i", cfg->hash_max);
+ system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/hash_max",
+ bridge->ifname, buf);
+
+ if (bridge->settings.flags & DEV_OPT_MULTICAST_ROUTER) {
+ snprintf(buf, buf_len, "%i", bridge->settings.multicast_router);
+ system_bridge_set_multicast_router(bridge, buf, true);
+ }
+
+ if (cfg->flags & BRIDGE_OPT_ROBUSTNESS) {
+ snprintf(buf, buf_len, "%i", cfg->robustness);
+ system_bridge_set_robustness(bridge, buf);
+ }
+
+ if (cfg->flags & BRIDGE_OPT_QUERY_INTERVAL) {
+ snprintf(buf, buf_len, "%i", cfg->query_interval);
+ system_bridge_set_query_interval(bridge, buf);
+ }
+
+ if (cfg->flags & BRIDGE_OPT_QUERY_RESPONSE_INTERVAL) {
+ snprintf(buf, buf_len, "%i", cfg->query_response_interval);
+ system_bridge_set_query_response_interval(bridge, buf);
+ }
+
+ if (cfg->flags & BRIDGE_OPT_LAST_MEMBER_INTERVAL) {
+ snprintf(buf, buf_len, "%i", cfg->last_member_interval);
+ system_bridge_set_last_member_interval(bridge, buf);
+ }
+
+ system_bridge_conf_multicast_deps(bridge, cfg, buf, buf_len);
+}
+
int system_bridge_addbr(struct device *bridge, struct bridge_config *cfg)
{
+ char buf[64];
unsigned long args[4] = {};
if (ioctl(sock_ioctl, SIOCBRADDBR, bridge->ifname) < 0)
args[1] = sec_to_jiffies(cfg->forward_delay);
system_bridge_if(bridge->ifname, NULL, SIOCDEVPRIVATE, &args);
- system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_snooping",
- bridge->ifname, cfg->igmp_snoop ? "1" : "0");
+ system_bridge_conf_multicast(bridge, cfg, buf, sizeof(buf));
args[0] = BRCTL_SET_BRIDGE_PRIORITY;
args[1] = cfg->priority;
{
struct nl_msg *msg;
struct nlattr *linkinfo, *data;
- struct ifinfomsg iim = { .ifi_family = AF_INET };
- int ifindex = system_if_resolve(dev);
+ struct ifinfomsg iim = { .ifi_family = AF_UNSPEC, };
int i, rv;
static const struct {
const char *name;
{ "passthru", MACVLAN_MODE_PASSTHRU },
};
- if (ifindex == 0)
- return -ENOENT;
-
msg = nlmsg_alloc_simple(RTM_NEWLINK, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
if (!msg)
if (cfg->flags & MACVLAN_OPT_MACADDR)
nla_put(msg, IFLA_ADDRESS, sizeof(cfg->macaddr), cfg->macaddr);
- nla_put(msg, IFLA_IFNAME, IFNAMSIZ, macvlan->ifname);
- nla_put_u32(msg, IFLA_LINK, ifindex);
+ nla_put_string(msg, IFLA_IFNAME, macvlan->ifname);
+ nla_put_u32(msg, IFLA_LINK, dev->ifindex);
if (!(linkinfo = nla_nest_start(msg, IFLA_LINKINFO)))
goto nla_put_failure;
- nla_put(msg, IFLA_INFO_KIND, strlen("macvlan"), "macvlan");
+ nla_put_string(msg, IFLA_INFO_KIND, "macvlan");
if (!(data = nla_nest_start(msg, IFLA_INFO_DATA)))
goto nla_put_failure;
return -ENOMEM;
}
-int system_macvlan_del(struct device *macvlan)
+static int system_link_del(const char *ifname)
{
struct nl_msg *msg;
- struct ifinfomsg iim;
-
- iim.ifi_family = AF_INET;
- iim.ifi_index = 0;
+ struct ifinfomsg iim = {
+ .ifi_family = AF_UNSPEC,
+ .ifi_index = 0,
+ };
- msg = nlmsg_alloc_simple(RTM_DELLINK, 0);
+ msg = nlmsg_alloc_simple(RTM_DELLINK, NLM_F_REQUEST);
if (!msg)
return -1;
nlmsg_append(msg, &iim, sizeof(iim), 0);
+ nla_put_string(msg, IFLA_IFNAME, ifname);
+ return system_rtnl_call(msg);
+}
- nla_put(msg, IFLA_INFO_KIND, strlen("macvlan"), "macvlan");
- nla_put(msg, IFLA_IFNAME, sizeof(macvlan->ifname), macvlan->ifname);
-
- system_rtnl_call(msg);
-
- return 0;
+int system_macvlan_del(struct device *macvlan)
+{
+ return system_link_del(macvlan->ifname);
}
static int system_vlan(struct device *dev, int id)
return system_vlan(dev, -1);
}
-static void
+int system_vlandev_add(struct device *vlandev, struct device *dev, struct vlandev_config *cfg)
+{
+ struct nl_msg *msg;
+ struct nlattr *linkinfo, *data;
+ struct ifinfomsg iim = { .ifi_family = AF_UNSPEC };
+ int rv;
+
+ msg = nlmsg_alloc_simple(RTM_NEWLINK, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
+
+ if (!msg)
+ return -1;
+
+ nlmsg_append(msg, &iim, sizeof(iim), 0);
+ nla_put_string(msg, IFLA_IFNAME, vlandev->ifname);
+ nla_put_u32(msg, IFLA_LINK, dev->ifindex);
+
+ if (!(linkinfo = nla_nest_start(msg, IFLA_LINKINFO)))
+ goto nla_put_failure;
+
+ nla_put_string(msg, IFLA_INFO_KIND, "vlan");
+
+ if (!(data = nla_nest_start(msg, IFLA_INFO_DATA)))
+ goto nla_put_failure;
+
+ nla_put_u16(msg, IFLA_VLAN_ID, cfg->vid);
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
+ nla_put_u16(msg, IFLA_VLAN_PROTOCOL, htons(cfg->proto));
+#else
+ if(cfg->proto == VLAN_PROTO_8021AD)
+ netifd_log_message(L_WARNING, "%s Your kernel is older than linux 3.10.0, 802.1ad is not supported defaulting to 802.1q", vlandev->type->name);
+#endif
+
+ nla_nest_end(msg, data);
+ nla_nest_end(msg, linkinfo);
+
+ rv = system_rtnl_call(msg);
+ if (rv)
+ D(SYSTEM, "Error adding vlandev '%s' over '%s': %d\n", vlandev->ifname, dev->ifname, rv);
+
+ return rv;
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return -ENOMEM;
+}
+
+int system_vlandev_del(struct device *vlandev)
+{
+ return system_link_del(vlandev->ifname);
+}
+
+void
system_if_get_settings(struct device *dev, struct device_settings *s)
{
struct ifreq ifr;
s->flags |= DEV_OPT_MTU;
}
+ s->mtu6 = system_update_ipv6_mtu(dev, 0);
+ if (s->mtu6 > 0)
+ s->flags |= DEV_OPT_MTU6;
+
if (ioctl(sock_ioctl, SIOCGIFTXQLEN, &ifr) == 0) {
s->txqueuelen = ifr.ifr_qlen;
s->flags |= DEV_OPT_TXQUEUELEN;
s->ipv6 = !strtoul(buf, NULL, 0);
s->flags |= DEV_OPT_IPV6;
}
-}
-void
-system_if_apply_settings(struct device *dev, struct device_settings *s, unsigned int apply_mask)
-{
- struct ifreq ifr;
+ if (ioctl(sock_ioctl, SIOCGIFFLAGS, &ifr) == 0) {
+ s->promisc = ifr.ifr_flags & IFF_PROMISC;
+ s->flags |= DEV_OPT_PROMISC;
- if (!apply_mask)
- return;
+ s->multicast = ifr.ifr_flags & IFF_MULTICAST;
+ s->flags |= DEV_OPT_MULTICAST;
+ }
- memset(&ifr, 0, sizeof(ifr));
- strncpy(ifr.ifr_name, dev->ifname, sizeof(ifr.ifr_name));
- if (s->flags & DEV_OPT_MTU & apply_mask) {
- ifr.ifr_mtu = s->mtu;
- if (ioctl(sock_ioctl, SIOCSIFMTU, &ifr) < 0)
- s->flags &= ~DEV_OPT_MTU;
+ if (!system_get_rpfilter(dev, buf, sizeof(buf))) {
+ s->rpfilter = strtoul(buf, NULL, 0);
+ s->flags |= DEV_OPT_RPFILTER;
}
- if (s->flags & DEV_OPT_TXQUEUELEN & apply_mask) {
+
+ if (!system_get_acceptlocal(dev, buf, sizeof(buf))) {
+ s->acceptlocal = strtoul(buf, NULL, 0);
+ s->flags |= DEV_OPT_ACCEPTLOCAL;
+ }
+
+ if (!system_get_igmpversion(dev, buf, sizeof(buf))) {
+ s->igmpversion = strtoul(buf, NULL, 0);
+ s->flags |= DEV_OPT_IGMPVERSION;
+ }
+
+ if (!system_get_mldversion(dev, buf, sizeof(buf))) {
+ s->mldversion = strtoul(buf, NULL, 0);
+ s->flags |= DEV_OPT_MLDVERSION;
+ }
+
+ if (!system_get_neigh4reachabletime(dev, buf, sizeof(buf))) {
+ s->neigh4reachabletime = strtoul(buf, NULL, 0);
+ s->flags |= DEV_OPT_NEIGHREACHABLETIME;
+ }
+
+ if (!system_get_neigh6reachabletime(dev, buf, sizeof(buf))) {
+ s->neigh6reachabletime = strtoul(buf, NULL, 0);
+ s->flags |= DEV_OPT_NEIGHREACHABLETIME;
+ }
+
+ if (!system_get_neigh4gcstaletime(dev, buf, sizeof(buf))) {
+ s->neigh4gcstaletime = strtoul(buf, NULL, 0);
+ s->flags |= DEV_OPT_NEIGHGCSTALETIME;
+ }
+
+ if (!system_get_neigh6gcstaletime(dev, buf, sizeof(buf))) {
+ s->neigh6gcstaletime = strtoul(buf, NULL, 0);
+ s->flags |= DEV_OPT_NEIGHGCSTALETIME;
+ }
+
+ if (!system_get_dadtransmits(dev, buf, sizeof(buf))) {
+ s->dadtransmits = strtoul(buf, NULL, 0);
+ s->flags |= DEV_OPT_DADTRANSMITS;
+ }
+}
+
+static void
+system_if_set_rps_xps_val(const char *path, int val)
+{
+ char val_buf[8];
+ glob_t gl;
+ int i;
+
+ if (glob(path, 0, NULL, &gl))
+ return;
+
+ snprintf(val_buf, sizeof(val_buf), "%x", val);
+ for (i = 0; i < gl.gl_pathc; i++)
+ system_set_sysctl(gl.gl_pathv[i], val_buf);
+
+ globfree(&gl);
+}
+
+static void
+system_if_apply_rps_xps(struct device *dev, struct device_settings *s)
+{
+ long n_cpus = sysconf(_SC_NPROCESSORS_ONLN);
+ int val;
+
+ if (n_cpus < 2)
+ return;
+
+ val = (1 << n_cpus) - 1;
+ snprintf(dev_buf, sizeof(dev_buf), "/sys/class/net/%s/queues/*/rps_cpus", dev->ifname);
+ system_if_set_rps_xps_val(dev_buf, s->rps ? val : 0);
+
+ snprintf(dev_buf, sizeof(dev_buf), "/sys/class/net/%s/queues/*/xps_cpus", dev->ifname);
+ system_if_set_rps_xps_val(dev_buf, s->xps ? val : 0);
+}
+
+void
+system_if_apply_settings(struct device *dev, struct device_settings *s, unsigned int apply_mask)
+{
+ struct ifreq ifr;
+ char buf[12];
+
+ memset(&ifr, 0, sizeof(ifr));
+ strncpy(ifr.ifr_name, dev->ifname, sizeof(ifr.ifr_name));
+ if (s->flags & DEV_OPT_MTU & apply_mask) {
+ ifr.ifr_mtu = s->mtu;
+ if (ioctl(sock_ioctl, SIOCSIFMTU, &ifr) < 0)
+ s->flags &= ~DEV_OPT_MTU;
+ }
+ if (s->flags & DEV_OPT_MTU6 & apply_mask) {
+ system_update_ipv6_mtu(dev, s->mtu6);
+ }
+ if (s->flags & DEV_OPT_TXQUEUELEN & apply_mask) {
ifr.ifr_qlen = s->txqueuelen;
if (ioctl(sock_ioctl, SIOCSIFTXQLEN, &ifr) < 0)
s->flags &= ~DEV_OPT_TXQUEUELEN;
}
if (s->flags & DEV_OPT_IPV6 & apply_mask)
system_set_disable_ipv6(dev, s->ipv6 ? "0" : "1");
+ if (s->flags & DEV_OPT_PROMISC & apply_mask) {
+ if (system_if_flags(dev->ifname, s->promisc ? IFF_PROMISC : 0,
+ !s->promisc ? IFF_PROMISC : 0) < 0)
+ s->flags &= ~DEV_OPT_PROMISC;
+ }
+ if (s->flags & DEV_OPT_RPFILTER & apply_mask) {
+ snprintf(buf, sizeof(buf), "%d", s->rpfilter);
+ system_set_rpfilter(dev, buf);
+ }
+ if (s->flags & DEV_OPT_ACCEPTLOCAL & apply_mask)
+ system_set_acceptlocal(dev, s->acceptlocal ? "1" : "0");
+ if (s->flags & DEV_OPT_IGMPVERSION & apply_mask) {
+ snprintf(buf, sizeof(buf), "%d", s->igmpversion);
+ system_set_igmpversion(dev, buf);
+ }
+ if (s->flags & DEV_OPT_MLDVERSION & apply_mask) {
+ snprintf(buf, sizeof(buf), "%d", s->mldversion);
+ system_set_mldversion(dev, buf);
+ }
+ if (s->flags & DEV_OPT_NEIGHREACHABLETIME & apply_mask) {
+ snprintf(buf, sizeof(buf), "%d", s->neigh4reachabletime);
+ system_set_neigh4reachabletime(dev, buf);
+ snprintf(buf, sizeof(buf), "%d", s->neigh6reachabletime);
+ system_set_neigh6reachabletime(dev, buf);
+ }
+ if (s->flags & DEV_OPT_NEIGHGCSTALETIME & apply_mask) {
+ snprintf(buf, sizeof(buf), "%d", s->neigh4gcstaletime);
+ system_set_neigh4gcstaletime(dev, buf);
+ snprintf(buf, sizeof(buf), "%d", s->neigh6gcstaletime);
+ system_set_neigh6gcstaletime(dev, buf);
+ }
+ if (s->flags & DEV_OPT_DADTRANSMITS & apply_mask) {
+ snprintf(buf, sizeof(buf), "%d", s->dadtransmits);
+ system_set_dadtransmits(dev, buf);
+ }
+ if (s->flags & DEV_OPT_MULTICAST & apply_mask) {
+ if (system_if_flags(dev->ifname, s->multicast ? IFF_MULTICAST : 0,
+ !s->multicast ? IFF_MULTICAST : 0) < 0)
+ s->flags &= ~DEV_OPT_MULTICAST;
+ }
+
+ system_if_apply_rps_xps(dev, s);
}
int system_if_up(struct device *dev)
{
system_if_get_settings(dev, &dev->orig_settings);
+ /* Only keep orig settings based on what needs to be set */
+ dev->orig_settings.valid_flags = dev->orig_settings.flags;
+ dev->orig_settings.flags &= dev->settings.flags;
system_if_apply_settings(dev, &dev->settings, dev->settings.flags);
- device_set_ifindex(dev, system_if_resolve(dev));
return system_if_flags(dev->ifname, IFF_UP, 0);
}
int system_if_down(struct device *dev)
{
int ret = system_if_flags(dev->ifname, 0, IFF_UP);
- dev->orig_settings.flags &= dev->settings.flags;
system_if_apply_settings(dev, &dev->orig_settings, dev->orig_settings.flags);
return ret;
}
int ret;
};
+#ifndef IFF_LOWER_UP
+#define IFF_LOWER_UP 0x10000
+#endif
+
static int cb_if_check_valid(struct nl_msg *msg, void *arg)
{
struct nlmsghdr *nh = nlmsg_hdr(msg);
int ret = 1;
msg = nlmsg_alloc_simple(RTM_GETLINK, 0);
- if (!msg || nlmsg_append(msg, &ifi, sizeof(ifi), 0) ||
- nla_put_string(msg, IFLA_IFNAME, dev->ifname))
+ if (!msg)
goto out;
+ if (nlmsg_append(msg, &ifi, sizeof(ifi), 0) ||
+ nla_put_string(msg, IFLA_IFNAME, dev->ifname))
+ goto free;
+
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, cb_if_check_valid, &chk);
nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, cb_if_check_ack, &chk);
nl_cb_err(cb, NL_CB_CUSTOM, cb_if_check_error, &chk);
while (chk.pending > 0)
nl_recvmsgs(sock_rtnl, cb);
- nlmsg_free(msg);
ret = chk.pending;
+free:
+ nlmsg_free(msg);
out:
nl_cb_put(cb);
return ret;
if (addr->valid_until) {
int64_t valid = addr->valid_until - now;
- if (valid <= 0)
+ if (valid <= 0) {
+ nlmsg_free(msg);
return -1;
+ }
else if (valid > UINT32_MAX)
valid = UINT32_MAX;
}
nla_put(msg, IFA_CACHEINFO, sizeof(cinfo), &cinfo);
+
+ if (cmd == RTM_NEWADDR && (addr->flags & DEVADDR_OFFLINK))
+ nla_put_u32(msg, IFA_FLAGS, IFA_F_NOPREFIXROUTE);
}
return system_rtnl_call(msg);
route->nexthop.in6.s6_addr32[2] ||
route->nexthop.in6.s6_addr32[3];
- unsigned char scope = (cmd == RTM_DELROUTE) ? RT_SCOPE_NOWHERE :
- (have_gw) ? RT_SCOPE_UNIVERSE : RT_SCOPE_LINK;
-
unsigned int table = (route->flags & (DEVROUTE_TABLE | DEVROUTE_SRCTABLE))
? route->table : RT_TABLE_MAIN;
.rtm_src_len = route->sourcemask,
.rtm_table = (table < 256) ? table : RT_TABLE_UNSPEC,
.rtm_protocol = (route->flags & DEVADDR_KERNEL) ? RTPROT_KERNEL : RTPROT_STATIC,
- .rtm_scope = scope,
+ .rtm_scope = RT_SCOPE_NOWHERE,
.rtm_type = (cmd == RTM_DELROUTE) ? 0: RTN_UNICAST,
+ .rtm_flags = (route->flags & DEVROUTE_ONLINK) ? RTNH_F_ONLINK : 0,
};
struct nl_msg *msg;
rtm.rtm_scope = RT_SCOPE_UNIVERSE;
rtm.rtm_type = RTN_UNREACHABLE;
}
+ else
+ rtm.rtm_scope = (have_gw) ? RT_SCOPE_UNIVERSE : RT_SCOPE_LINK;
+ }
+
+ if (route->flags & DEVROUTE_TYPE) {
+ rtm.rtm_type = route->type;
+ if (!(route->flags & (DEVROUTE_TABLE | DEVROUTE_SRCTABLE))) {
+ if (rtm.rtm_type == RTN_LOCAL || rtm.rtm_type == RTN_BROADCAST ||
+ rtm.rtm_type == RTN_NAT || rtm.rtm_type == RTN_ANYCAST)
+ rtm.rtm_table = RT_TABLE_LOCAL;
+ }
+
+ if (rtm.rtm_type == RTN_LOCAL || rtm.rtm_type == RTN_NAT) {
+ rtm.rtm_scope = RT_SCOPE_HOST;
+ } else if (rtm.rtm_type == RTN_BROADCAST || rtm.rtm_type == RTN_MULTICAST ||
+ rtm.rtm_type == RTN_ANYCAST) {
+ rtm.rtm_scope = RT_SCOPE_LINK;
+ } else if (rtm.rtm_type == RTN_BLACKHOLE || rtm.rtm_type == RTN_UNREACHABLE ||
+ rtm.rtm_type == RTN_PROHIBIT || rtm.rtm_type == RTN_FAILED_POLICY) {
+ rtm.rtm_scope = RT_SCOPE_UNIVERSE;
+ dev = NULL;
+ }
}
msg = nlmsg_alloc_simple(cmd, flags);
if (route->mask)
nla_put(msg, RTA_DST, alen, &route->addr);
- if (route->sourcemask)
- nla_put(msg, RTA_SRC, alen, &route->source);
+ if (route->sourcemask) {
+ if (rtm.rtm_family == AF_INET)
+ nla_put(msg, RTA_PREFSRC, alen, &route->source);
+ else
+ nla_put(msg, RTA_SRC, alen, &route->source);
+ }
if (route->metric > 0)
nla_put_u32(msg, RTA_PRIORITY, route->metric);
return 0;
}
+bool system_resolve_rt_type(const char *type, unsigned int *id)
+{
+ return system_rtn_aton(type, id);
+}
+
bool system_resolve_rt_table(const char *name, unsigned int *id)
{
FILE *f;
if (table == RT_TABLE_UNSPEC)
return false;
- /* do not consider main table special */
- if (table == RT_TABLE_MAIN)
- table = RT_TABLE_UNSPEC;
-
*id = table;
return true;
}
+bool system_is_default_rt_table(unsigned int id)
+{
+ return (id == RT_TABLE_MAIN);
+}
+
+bool system_resolve_rpfilter(const char *filter, unsigned int *id)
+{
+ char *e;
+ unsigned int n;
+
+ if (!strcmp(filter, "strict"))
+ n = 1;
+ else if (!strcmp(filter, "loose"))
+ n = 2;
+ else {
+ n = strtoul(filter, &e, 0);
+ if (*e || e == filter || n > 2)
+ return false;
+ }
+
+ *id = n;
+ return true;
+}
+
static int system_iprule(struct iprule *rule, int cmd)
{
int alen = ((rule->flags & IPRULE_FAMILY) == IPRULE_INET4) ? 4 : 16;
.rtm_flags = 0,
};
- if (cmd == RTM_NEWRULE) {
+ if (cmd == RTM_NEWRULE)
rtm.rtm_type = RTN_UNICAST;
- rtm.rtm_flags |= NLM_F_REPLACE | NLM_F_EXCL;
- }
if (rule->invert)
rtm.rtm_flags |= FIB_RULE_INVERT;
bool system_resolve_iprule_action(const char *action, unsigned int *id)
{
- char *e;
- unsigned int n;
-
- if (!strcmp(action, "local"))
- n = RTN_LOCAL;
- else if (!strcmp(action, "nat"))
- n = RTN_NAT;
- else if (!strcmp(action, "broadcast"))
- n = RTN_BROADCAST;
- else if (!strcmp(action, "anycast"))
- n = RTN_ANYCAST;
- else if (!strcmp(action, "multicast"))
- n = RTN_MULTICAST;
- else if (!strcmp(action, "prohibit"))
- n = RTN_PROHIBIT;
- else if (!strcmp(action, "unreachable"))
- n = RTN_UNREACHABLE;
- else if (!strcmp(action, "blackhole"))
- n = RTN_BLACKHOLE;
- else if (!strcmp(action, "xresolve"))
- n = RTN_XRESOLVE;
- else if (!strcmp(action, "unicast"))
- n = RTN_UNICAST;
- else if (!strcmp(action, "throw"))
- n = RTN_THROW;
- else if (!strcmp(action, "failed_policy"))
- n = RTN_FAILED_POLICY;
- else {
- n = strtoul(action, &e, 0);
- if (!e || *e || e == action || n > 255)
- return false;
- }
-
- *id = n;
- return true;
+ return system_rtn_aton(action, id);
}
time_t system_get_rtime(void)
return ioctl(sock_ioctl, cmd, &ifr);
}
-int system_del_ip_tunnel(const char *name)
+#ifdef IFLA_IPTUN_MAX
+#define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
+static int system_add_gre_tunnel(const char *name, const char *kind,
+ const unsigned int link, struct blob_attr **tb, bool v6)
+{
+ struct nl_msg *nlm;
+ struct ifinfomsg ifi = { .ifi_family = AF_UNSPEC, };
+ struct blob_attr *cur;
+ uint32_t ikey = 0, okey = 0, flags = 0, flowinfo = 0;
+ uint16_t iflags = 0, oflags = 0;
+ uint8_t tos = 0;
+ int ret = 0, ttl = 64;
+
+ nlm = nlmsg_alloc_simple(RTM_NEWLINK, NLM_F_REQUEST | NLM_F_REPLACE | NLM_F_CREATE);
+ if (!nlm)
+ return -1;
+
+ nlmsg_append(nlm, &ifi, sizeof(ifi), 0);
+ nla_put_string(nlm, IFLA_IFNAME, name);
+
+ struct nlattr *linkinfo = nla_nest_start(nlm, IFLA_LINKINFO);
+ if (!linkinfo) {
+ ret = -ENOMEM;
+ goto failure;
+ }
+
+ nla_put_string(nlm, IFLA_INFO_KIND, kind);
+ struct nlattr *infodata = nla_nest_start(nlm, IFLA_INFO_DATA);
+ if (!infodata) {
+ ret = -ENOMEM;
+ goto failure;
+ }
+
+ if (link)
+ nla_put_u32(nlm, IFLA_GRE_LINK, link);
+
+ if ((cur = tb[TUNNEL_ATTR_TTL]))
+ ttl = blobmsg_get_u32(cur);
+
+ nla_put_u8(nlm, IFLA_GRE_TTL, ttl);
+
+ if ((cur = tb[TUNNEL_ATTR_TOS])) {
+ char *str = blobmsg_get_string(cur);
+ if (strcmp(str, "inherit")) {
+ unsigned uval;
+
+ if (!system_tos_aton(str, &uval)) {
+ ret = -EINVAL;
+ goto failure;
+ }
+
+ if (v6)
+ flowinfo |= htonl(uval << 20) & IP6_FLOWINFO_TCLASS;
+ else
+ tos = uval;
+ } else {
+ if (v6)
+ flags |= IP6_TNL_F_USE_ORIG_TCLASS;
+ else
+ tos = 1;
+ }
+ }
+
+ if ((cur = tb[TUNNEL_ATTR_INFO]) && (blobmsg_type(cur) == BLOBMSG_TYPE_STRING)) {
+ uint8_t icsum, ocsum, iseqno, oseqno;
+ if (sscanf(blobmsg_get_string(cur), "%u,%u,%hhu,%hhu,%hhu,%hhu",
+ &ikey, &okey, &icsum, &ocsum, &iseqno, &oseqno) < 6) {
+ ret = -EINVAL;
+ goto failure;
+ }
+
+ if (ikey)
+ iflags |= GRE_KEY;
+
+ if (okey)
+ oflags |= GRE_KEY;
+
+ if (icsum)
+ iflags |= GRE_CSUM;
+
+ if (ocsum)
+ oflags |= GRE_CSUM;
+
+ if (iseqno)
+ iflags |= GRE_SEQ;
+
+ if (oseqno)
+ oflags |= GRE_SEQ;
+ }
+
+ if (v6) {
+ struct in6_addr in6buf;
+ if ((cur = tb[TUNNEL_ATTR_LOCAL])) {
+ if (inet_pton(AF_INET6, blobmsg_data(cur), &in6buf) < 1) {
+ ret = -EINVAL;
+ goto failure;
+ }
+ nla_put(nlm, IFLA_GRE_LOCAL, sizeof(in6buf), &in6buf);
+ }
+
+ if ((cur = tb[TUNNEL_ATTR_REMOTE])) {
+ if (inet_pton(AF_INET6, blobmsg_data(cur), &in6buf) < 1) {
+ ret = -EINVAL;
+ goto failure;
+ }
+ nla_put(nlm, IFLA_GRE_REMOTE, sizeof(in6buf), &in6buf);
+ }
+ nla_put_u8(nlm, IFLA_GRE_ENCAP_LIMIT, 4);
+
+ if (flowinfo)
+ nla_put_u32(nlm, IFLA_GRE_FLOWINFO, flowinfo);
+
+ if (flags)
+ nla_put_u32(nlm, IFLA_GRE_FLAGS, flags);
+ } else {
+ struct in_addr inbuf;
+ bool set_df = true;
+
+ if ((cur = tb[TUNNEL_ATTR_LOCAL])) {
+ if (inet_pton(AF_INET, blobmsg_data(cur), &inbuf) < 1) {
+ ret = -EINVAL;
+ goto failure;
+ }
+ nla_put(nlm, IFLA_GRE_LOCAL, sizeof(inbuf), &inbuf);
+ }
+
+ if ((cur = tb[TUNNEL_ATTR_REMOTE])) {
+ if (inet_pton(AF_INET, blobmsg_data(cur), &inbuf) < 1) {
+ ret = -EINVAL;
+ goto failure;
+ }
+ nla_put(nlm, IFLA_GRE_REMOTE, sizeof(inbuf), &inbuf);
+
+ if (IN_MULTICAST(ntohl(inbuf.s_addr))) {
+ if (!okey) {
+ okey = inbuf.s_addr;
+ oflags |= GRE_KEY;
+ }
+
+ if (!ikey) {
+ ikey = inbuf.s_addr;
+ iflags |= GRE_KEY;
+ }
+ }
+ }
+
+ if ((cur = tb[TUNNEL_ATTR_DF]))
+ set_df = blobmsg_get_bool(cur);
+
+ /* ttl !=0 and nopmtudisc are incompatible */
+ if (ttl && !set_df) {
+ ret = -EINVAL;
+ goto failure;
+ }
+
+ nla_put_u8(nlm, IFLA_GRE_PMTUDISC, set_df ? 1 : 0);
+
+ nla_put_u8(nlm, IFLA_GRE_TOS, tos);
+ }
+
+ if (oflags)
+ nla_put_u16(nlm, IFLA_GRE_OFLAGS, oflags);
+
+ if (iflags)
+ nla_put_u16(nlm, IFLA_GRE_IFLAGS, iflags);
+
+ if (okey)
+ nla_put_u32(nlm, IFLA_GRE_OKEY, okey);
+
+ if (ikey)
+ nla_put_u32(nlm, IFLA_GRE_IKEY, ikey);
+
+ nla_nest_end(nlm, infodata);
+ nla_nest_end(nlm, linkinfo);
+
+ return system_rtnl_call(nlm);
+
+failure:
+ nlmsg_free(nlm);
+ return ret;
+}
+#endif
+
+#ifdef IFLA_VTI_MAX
+static int system_add_vti_tunnel(const char *name, const char *kind,
+ const unsigned int link, struct blob_attr **tb, bool v6)
{
- return tunnel_ioctl(name, SIOCDELTUNNEL, NULL);
+ struct nl_msg *nlm;
+ struct ifinfomsg ifi = { .ifi_family = AF_UNSPEC, };
+ struct blob_attr *cur;
+ uint32_t ikey = 0, okey = 0;
+ int ret = 0;
+
+ nlm = nlmsg_alloc_simple(RTM_NEWLINK, NLM_F_REQUEST | NLM_F_REPLACE | NLM_F_CREATE);
+ if (!nlm)
+ return -1;
+
+ nlmsg_append(nlm, &ifi, sizeof(ifi), 0);
+ nla_put_string(nlm, IFLA_IFNAME, name);
+
+ struct nlattr *linkinfo = nla_nest_start(nlm, IFLA_LINKINFO);
+ if (!linkinfo) {
+ ret = -ENOMEM;
+ goto failure;
+ }
+
+ nla_put_string(nlm, IFLA_INFO_KIND, kind);
+ struct nlattr *infodata = nla_nest_start(nlm, IFLA_INFO_DATA);
+ if (!infodata) {
+ ret = -ENOMEM;
+ goto failure;
+ }
+
+ if (link)
+ nla_put_u32(nlm, IFLA_VTI_LINK, link);
+
+ if ((cur = tb[TUNNEL_ATTR_INFO]) && (blobmsg_type(cur) == BLOBMSG_TYPE_STRING)) {
+ if (sscanf(blobmsg_get_string(cur), "%u,%u",
+ &ikey, &okey) < 2) {
+ ret = -EINVAL;
+ goto failure;
+ }
+ }
+
+ if (v6) {
+ struct in6_addr in6buf;
+ if ((cur = tb[TUNNEL_ATTR_LOCAL])) {
+ if (inet_pton(AF_INET6, blobmsg_data(cur), &in6buf) < 1) {
+ ret = -EINVAL;
+ goto failure;
+ }
+ nla_put(nlm, IFLA_VTI_LOCAL, sizeof(in6buf), &in6buf);
+ }
+
+ if ((cur = tb[TUNNEL_ATTR_REMOTE])) {
+ if (inet_pton(AF_INET6, blobmsg_data(cur), &in6buf) < 1) {
+ ret = -EINVAL;
+ goto failure;
+ }
+ nla_put(nlm, IFLA_VTI_REMOTE, sizeof(in6buf), &in6buf);
+ }
+
+ } else {
+ struct in_addr inbuf;
+
+ if ((cur = tb[TUNNEL_ATTR_LOCAL])) {
+ if (inet_pton(AF_INET, blobmsg_data(cur), &inbuf) < 1) {
+ ret = -EINVAL;
+ goto failure;
+ }
+ nla_put(nlm, IFLA_VTI_LOCAL, sizeof(inbuf), &inbuf);
+ }
+
+ if ((cur = tb[TUNNEL_ATTR_REMOTE])) {
+ if (inet_pton(AF_INET, blobmsg_data(cur), &inbuf) < 1) {
+ ret = -EINVAL;
+ goto failure;
+ }
+ nla_put(nlm, IFLA_VTI_REMOTE, sizeof(inbuf), &inbuf);
+ }
+
+ }
+
+ if (okey)
+ nla_put_u32(nlm, IFLA_VTI_OKEY, htonl(okey));
+
+ if (ikey)
+ nla_put_u32(nlm, IFLA_VTI_IKEY, htonl(ikey));
+
+ nla_nest_end(nlm, infodata);
+ nla_nest_end(nlm, linkinfo);
+
+ return system_rtnl_call(nlm);
+
+failure:
+ nlmsg_free(nlm);
+ return ret;
+}
+#endif
+
+static int system_add_proto_tunnel(const char *name, const uint8_t proto, const unsigned int link, struct blob_attr **tb)
+{
+ struct blob_attr *cur;
+ bool set_df = true;
+ struct ip_tunnel_parm p = {
+ .link = link,
+ .iph = {
+ .version = 4,
+ .ihl = 5,
+ .protocol = proto,
+ }
+ };
+
+ if ((cur = tb[TUNNEL_ATTR_LOCAL]) &&
+ inet_pton(AF_INET, blobmsg_data(cur), &p.iph.saddr) < 1)
+ return -EINVAL;
+
+ if ((cur = tb[TUNNEL_ATTR_REMOTE]) &&
+ inet_pton(AF_INET, blobmsg_data(cur), &p.iph.daddr) < 1)
+ return -EINVAL;
+
+ if ((cur = tb[TUNNEL_ATTR_DF]))
+ set_df = blobmsg_get_bool(cur);
+
+ if ((cur = tb[TUNNEL_ATTR_TTL]))
+ p.iph.ttl = blobmsg_get_u32(cur);
+
+ if ((cur = tb[TUNNEL_ATTR_TOS])) {
+ char *str = blobmsg_get_string(cur);
+ if (strcmp(str, "inherit")) {
+ unsigned uval;
+
+ if (!system_tos_aton(str, &uval))
+ return -EINVAL;
+
+ p.iph.tos = uval;
+ } else
+ p.iph.tos = 1;
+ }
+
+ p.iph.frag_off = set_df ? htons(IP_DF) : 0;
+ /* ttl !=0 and nopmtudisc are incompatible */
+ if (p.iph.ttl && p.iph.frag_off == 0)
+ return -EINVAL;
+
+ strncpy(p.name, name, sizeof(p.name));
+
+ switch (p.iph.protocol) {
+ case IPPROTO_IPIP:
+ return tunnel_ioctl("tunl0", SIOCADDTUNNEL, &p);
+ case IPPROTO_IPV6:
+ return tunnel_ioctl("sit0", SIOCADDTUNNEL, &p);
+ default:
+ break;
+ }
+ return -1;
+}
+
+static int __system_del_ip_tunnel(const char *name, struct blob_attr **tb)
+{
+ struct blob_attr *cur;
+ const char *str;
+
+ if (!(cur = tb[TUNNEL_ATTR_TYPE]))
+ return -EINVAL;
+ str = blobmsg_data(cur);
+
+ if (!strcmp(str, "greip") || !strcmp(str, "gretapip") ||
+ !strcmp(str, "greip6") || !strcmp(str, "gretapip6") ||
+ !strcmp(str, "vtiip") || !strcmp(str, "vtiip6"))
+ return system_link_del(name);
+ else
+ return tunnel_ioctl(name, SIOCDELTUNNEL, NULL);
+}
+
+int system_del_ip_tunnel(const char *name, struct blob_attr *attr)
+{
+ struct blob_attr *tb[__TUNNEL_ATTR_MAX];
+
+ blobmsg_parse(tunnel_attr_list.params, __TUNNEL_ATTR_MAX, tb,
+ blob_data(attr), blob_len(attr));
+
+ return __system_del_ip_tunnel(name, tb);
}
int system_update_ipv6_mtu(struct device *dev, int mtu)
dev->ifname);
int fd = open(buf, O_RDWR);
- ssize_t len = read(fd, buf, sizeof(buf) - 1);
- if (len < 0)
- goto out;
- buf[len] = 0;
- ret = atoi(buf);
-
- if (!mtu || ret <= mtu)
- goto out;
+ if (!mtu) {
+ ssize_t len = read(fd, buf, sizeof(buf) - 1);
+ if (len < 0)
+ goto out;
- lseek(fd, 0, SEEK_SET);
- if (write(fd, buf, snprintf(buf, sizeof(buf), "%i", mtu)) <= 0)
- ret = -1;
+ buf[len] = 0;
+ ret = atoi(buf);
+ } else {
+ if (write(fd, buf, snprintf(buf, sizeof(buf), "%i", mtu)) > 0)
+ ret = mtu;
+ }
out:
close(fd);
{
struct blob_attr *tb[__TUNNEL_ATTR_MAX];
struct blob_attr *cur;
- bool set_df = true;
const char *str;
- system_del_ip_tunnel(name);
-
blobmsg_parse(tunnel_attr_list.params, __TUNNEL_ATTR_MAX, tb,
blob_data(attr), blob_len(attr));
+ __system_del_ip_tunnel(name, tb);
+
if (!(cur = tb[TUNNEL_ATTR_TYPE]))
return -EINVAL;
str = blobmsg_data(cur);
- if ((cur = tb[TUNNEL_ATTR_DF]))
- set_df = blobmsg_get_bool(cur);
-
unsigned int ttl = 0;
if ((cur = tb[TUNNEL_ATTR_TTL])) {
ttl = blobmsg_get_u32(cur);
- if (ttl > 255 || (!set_df && ttl))
+ if (ttl > 255)
return -EINVAL;
}
}
if (!strcmp(str, "sit")) {
- struct ip_tunnel_parm p = {
- .link = link,
- .iph = {
- .version = 4,
- .ihl = 5,
- .frag_off = set_df ? htons(IP_DF) : 0,
- .protocol = IPPROTO_IPV6,
- .ttl = ttl
- }
- };
-
- if ((cur = tb[TUNNEL_ATTR_LOCAL]) &&
- inet_pton(AF_INET, blobmsg_data(cur), &p.iph.saddr) < 1)
- return -EINVAL;
-
- if ((cur = tb[TUNNEL_ATTR_REMOTE]) &&
- inet_pton(AF_INET, blobmsg_data(cur), &p.iph.daddr) < 1)
- return -EINVAL;
-
- strncpy(p.name, name, sizeof(p.name));
- if (tunnel_ioctl("sit0", SIOCADDTUNNEL, &p) < 0)
+ if (system_add_proto_tunnel(name, IPPROTO_IPV6, link, tb) < 0)
return -1;
#ifdef SIOCADD6RD
}
if (tunnel_ioctl(name, SIOCADD6RD, &p6) < 0) {
- system_del_ip_tunnel(name);
+ __system_del_ip_tunnel(name, tb);
return -1;
}
}
#endif
+#ifdef IFLA_IPTUN_MAX
} else if (!strcmp(str, "ipip6")) {
- struct ip6_tnl_parm p = {
- .link = link,
- .proto = IPPROTO_IPIP,
- .hop_limit = (ttl) ? ttl : 64,
- .encap_limit = 4,
- };
-
- if ((cur = tb[TUNNEL_ATTR_LOCAL]) &&
- inet_pton(AF_INET6, blobmsg_data(cur), &p.laddr) < 1)
- return -EINVAL;
-
- if ((cur = tb[TUNNEL_ATTR_REMOTE]) &&
- inet_pton(AF_INET6, blobmsg_data(cur), &p.raddr) < 1)
- return -EINVAL;
+ struct nl_msg *nlm = nlmsg_alloc_simple(RTM_NEWLINK,
+ NLM_F_REQUEST | NLM_F_REPLACE | NLM_F_CREATE);
+ struct ifinfomsg ifi = { .ifi_family = AF_UNSPEC };
+ int ret = 0;
- strncpy(p.name, name, sizeof(p.name));
- if (tunnel_ioctl("ip6tnl0", SIOCADDTUNNEL, &p) < 0)
+ if (!nlm)
return -1;
- } else
+
+ nlmsg_append(nlm, &ifi, sizeof(ifi), 0);
+ nla_put_string(nlm, IFLA_IFNAME, name);
+
+ if (link)
+ nla_put_u32(nlm, IFLA_LINK, link);
+
+ struct nlattr *linkinfo = nla_nest_start(nlm, IFLA_LINKINFO);
+ if (!linkinfo) {
+ ret = -ENOMEM;
+ goto failure;
+ }
+ nla_put_string(nlm, IFLA_INFO_KIND, "ip6tnl");
+ struct nlattr *infodata = nla_nest_start(nlm, IFLA_INFO_DATA);
+ if (!infodata) {
+ ret = -ENOMEM;
+ goto failure;
+ }
+
+ if (link)
+ nla_put_u32(nlm, IFLA_IPTUN_LINK, link);
+
+ nla_put_u8(nlm, IFLA_IPTUN_PROTO, IPPROTO_IPIP);
+ nla_put_u8(nlm, IFLA_IPTUN_TTL, (ttl) ? ttl : 64);
+ nla_put_u8(nlm, IFLA_IPTUN_ENCAP_LIMIT, 4);
+
+ struct in6_addr in6buf;
+ if ((cur = tb[TUNNEL_ATTR_LOCAL])) {
+ if (inet_pton(AF_INET6, blobmsg_data(cur), &in6buf) < 1) {
+ ret = -EINVAL;
+ goto failure;
+ }
+ nla_put(nlm, IFLA_IPTUN_LOCAL, sizeof(in6buf), &in6buf);
+ }
+
+ if ((cur = tb[TUNNEL_ATTR_REMOTE])) {
+ if (inet_pton(AF_INET6, blobmsg_data(cur), &in6buf) < 1) {
+ ret = -EINVAL;
+ goto failure;
+ }
+ nla_put(nlm, IFLA_IPTUN_REMOTE, sizeof(in6buf), &in6buf);
+ }
+
+#ifdef IFLA_IPTUN_FMR_MAX
+ if ((cur = tb[TUNNEL_ATTR_FMRS])) {
+ struct nlattr *fmrs = nla_nest_start(nlm, IFLA_IPTUN_FMRS);
+
+ struct blob_attr *fmr;
+ unsigned rem, fmrcnt = 0;
+ blobmsg_for_each_attr(fmr, cur, rem) {
+ if (blobmsg_type(fmr) != BLOBMSG_TYPE_STRING)
+ continue;
+
+ unsigned ip4len, ip6len, ealen, offset = 6;
+ char ip6buf[48];
+ char ip4buf[16];
+
+ if (sscanf(blobmsg_get_string(fmr), "%47[^/]/%u,%15[^/]/%u,%u,%u",
+ ip6buf, &ip6len, ip4buf, &ip4len, &ealen, &offset) < 5) {
+ ret = -EINVAL;
+ goto failure;
+ }
+
+ struct in6_addr ip6prefix;
+ struct in_addr ip4prefix;
+ if (inet_pton(AF_INET6, ip6buf, &ip6prefix) != 1 ||
+ inet_pton(AF_INET, ip4buf, &ip4prefix) != 1) {
+ ret = -EINVAL;
+ goto failure;
+ }
+
+ struct nlattr *rule = nla_nest_start(nlm, ++fmrcnt);
+
+ nla_put(nlm, IFLA_IPTUN_FMR_IP6_PREFIX, sizeof(ip6prefix), &ip6prefix);
+ nla_put(nlm, IFLA_IPTUN_FMR_IP4_PREFIX, sizeof(ip4prefix), &ip4prefix);
+ nla_put_u8(nlm, IFLA_IPTUN_FMR_IP6_PREFIX_LEN, ip6len);
+ nla_put_u8(nlm, IFLA_IPTUN_FMR_IP4_PREFIX_LEN, ip4len);
+ nla_put_u8(nlm, IFLA_IPTUN_FMR_EA_LEN, ealen);
+ nla_put_u8(nlm, IFLA_IPTUN_FMR_OFFSET, offset);
+
+ nla_nest_end(nlm, rule);
+ }
+
+ nla_nest_end(nlm, fmrs);
+ }
+#endif
+
+ nla_nest_end(nlm, infodata);
+ nla_nest_end(nlm, linkinfo);
+
+ return system_rtnl_call(nlm);
+failure:
+ nlmsg_free(nlm);
+ return ret;
+ } else if (!strcmp(str, "greip")) {
+ return system_add_gre_tunnel(name, "gre", link, tb, false);
+ } else if (!strcmp(str, "gretapip")) {
+ return system_add_gre_tunnel(name, "gretap", link, tb, false);
+ } else if (!strcmp(str, "greip6")) {
+ return system_add_gre_tunnel(name, "ip6gre", link, tb, true);
+ } else if (!strcmp(str, "gretapip6")) {
+ return system_add_gre_tunnel(name, "ip6gretap", link, tb, true);
+#ifdef IFLA_VTI_MAX
+ } else if (!strcmp(str, "vtiip")) {
+ return system_add_vti_tunnel(name, "vti", link, tb, false);
+ } else if (!strcmp(str, "vtiip6")) {
+ return system_add_vti_tunnel(name, "vti6", link, tb, true);
+#endif
+#endif
+ } else if (!strcmp(str, "ipip")) {
+ return system_add_proto_tunnel(name, IPPROTO_IPIP, link, tb);
+ }
+ else
return -EINVAL;
return 0;
projects / project / netifd.git / blobdiff