* 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>
+ * Copyright (C) 2017 Matthias Schiffer <mschiffer@universe-factory.net>
*
* 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 <net/if_arp.h>
#include <arpa/inet.h>
+#include <netinet/ether.h>
#include <netinet/in.h>
#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/veth.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>
static bool
create_raw_event_socket(struct event_socket *ev, int protocol, int groups,
- uloop_fd_handler cb, int flags)
+ uloop_fd_handler cb, int flags)
{
ev->sock = create_socket(protocol, groups);
if (!ev->sock)
return -1;
if (!create_raw_event_socket(&hotplug_event, NETLINK_KOBJECT_UEVENT, 1,
- handle_hotplug_event, 0))
+ handle_hotplug_event, 0))
return -1;
// Receive network link events form kernel
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_neigh4locktime(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/locktime", 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_multicast_fast_leave(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/sys/class/net/%s/brport/multicast_fast_leave", 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 void system_set_sendredirects(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/send_redirects", 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);
}
+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_neigh4locktime(struct device *dev, char *buf, const size_t buf_sz)
+{
+ return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/locktime",
+ 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);
+}
+
+static int system_get_sendredirects(struct device *dev, char *buf, const size_t buf_sz)
+{
+ return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/send_redirects",
+ 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);
- if (!dev || dev->type->keep_link_status)
+ struct device *dev = device_find(nla_data(nla[IFLA_IFNAME]));
+ if (!dev)
goto out;
if (!system_get_dev_sysctl("/sys/class/net/%s/carrier", dev->ifname, buf, sizeof(buf)))
return;
found:
- dev = device_get(interface, false);
+ dev = device_find(interface);
if (!dev)
return;
return path + 1;
}
-static void system_bridge_set_wireless(const char *bridge, const char *dev)
+static void
+system_bridge_set_wireless(struct device *bridge, struct device *dev)
{
- snprintf(dev_buf, sizeof(dev_buf),
- "/sys/devices/virtual/net/%s/brif/%s/multicast_to_unicast",
- bridge, dev);
- system_set_sysctl(dev_buf, "1");
+ 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;
ret = system_bridge_if(bridge->ifname, dev, SIOCBRADDIF, NULL);
if (dev->wireless)
- system_bridge_set_wireless(bridge->ifname, dev->ifname);
+ 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);
+ }
+
+ if (dev->settings.flags & DEV_OPT_MULTICAST_FAST_LEAVE &&
+ dev->settings.multicast_fast_leave)
+ system_bridge_set_multicast_fast_leave(dev, "1");
+
+ 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;
}
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_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier",
- 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;
return system_link_del(macvlan->ifname);
}
+int system_veth_add(struct device *veth, struct veth_config *cfg)
+{
+ struct nl_msg *msg;
+ struct ifinfomsg empty_iim = {};
+ struct nlattr *linkinfo, *data, *veth_info;
+ int rv;
+
+ msg = nlmsg_alloc_simple(RTM_NEWLINK, NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL);
+
+ if (!msg)
+ return -1;
+
+ nlmsg_append(msg, &empty_iim, sizeof(empty_iim), 0);
+
+ if (cfg->flags & VETH_OPT_MACADDR)
+ nla_put(msg, IFLA_ADDRESS, sizeof(cfg->macaddr), cfg->macaddr);
+ nla_put_string(msg, IFLA_IFNAME, veth->ifname);
+
+ if (!(linkinfo = nla_nest_start(msg, IFLA_LINKINFO)))
+ goto nla_put_failure;
+
+ nla_put_string(msg, IFLA_INFO_KIND, "veth");
+
+ if (!(data = nla_nest_start(msg, IFLA_INFO_DATA)))
+ goto nla_put_failure;
+
+ if (!(veth_info = nla_nest_start(msg, VETH_INFO_PEER)))
+ goto nla_put_failure;
+
+ nlmsg_append(msg, &empty_iim, sizeof(empty_iim), 0);
+
+ if (cfg->flags & VETH_OPT_PEER_NAME)
+ nla_put_string(msg, IFLA_IFNAME, cfg->peer_name);
+ if (cfg->flags & VETH_OPT_PEER_MACADDR)
+ nla_put(msg, IFLA_ADDRESS, sizeof(cfg->peer_macaddr), cfg->peer_macaddr);
+
+ nla_nest_end(msg, veth_info);
+ nla_nest_end(msg, data);
+ nla_nest_end(msg, linkinfo);
+
+ rv = system_rtnl_call(msg);
+ if (rv) {
+ if (cfg->flags & VETH_OPT_PEER_NAME)
+ D(SYSTEM, "Error adding veth '%s' with peer '%s': %d\n", veth->ifname, cfg->peer_name, rv);
+ else
+ D(SYSTEM, "Error adding veth '%s': %d\n", veth->ifname, rv);
+ }
+
+ return rv;
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return -ENOMEM;
+}
+
+int system_veth_del(struct device *veth)
+{
+ return system_link_del(veth->ifname);
+}
+
static int system_vlan(struct device *dev, int id)
{
struct vlan_ioctl_args ifr = {
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)))
return system_link_del(vlandev->ifname);
}
-static void
+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;
if (ioctl(sock_ioctl, SIOCGIFFLAGS, &ifr) == 0) {
s->promisc = ifr.ifr_flags & IFF_PROMISC;
s->flags |= DEV_OPT_PROMISC;
+
+ s->multicast = ifr.ifr_flags & IFF_MULTICAST;
+ s->flags |= DEV_OPT_MULTICAST;
}
if (!system_get_rpfilter(dev, buf, sizeof(buf))) {
s->neigh6reachabletime = strtoul(buf, NULL, 0);
s->flags |= DEV_OPT_NEIGHREACHABLETIME;
}
+
+ if (!system_get_neigh4locktime(dev, buf, sizeof(buf))) {
+ s->neigh4locktime = strtoul(buf, NULL, 0);
+ s->flags |= DEV_OPT_NEIGHLOCKTIME;
+ }
+
+ 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;
+ }
+
+ if (!system_get_sendredirects(dev, buf, sizeof(buf))) {
+ s->sendredirects = strtoul(buf, NULL, 0);
+ s->flags |= DEV_OPT_SENDREDIRECTS;
+ }
+}
+
+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;
-
- if (!apply_mask)
- return;
+ char buf[12];
memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, dev->ifname, sizeof(ifr.ifr_name));
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_PROMISC;
}
if (s->flags & DEV_OPT_RPFILTER & apply_mask) {
- char buf[2];
-
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) {
- char buf[2];
-
snprintf(buf, sizeof(buf), "%d", s->igmpversion);
system_set_igmpversion(dev, buf);
}
if (s->flags & DEV_OPT_MLDVERSION & apply_mask) {
- char buf[2];
-
snprintf(buf, sizeof(buf), "%d", s->mldversion);
system_set_mldversion(dev, buf);
}
if (s->flags & DEV_OPT_NEIGHREACHABLETIME & apply_mask) {
- char buf[12];
-
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_NEIGHLOCKTIME & apply_mask) {
+ snprintf(buf, sizeof(buf), "%d", s->neigh4locktime);
+ system_set_neigh4locktime(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;
+ }
+ if (s->flags & DEV_OPT_SENDREDIRECTS & apply_mask)
+ system_set_sendredirects(dev, s->sendredirects ? "1" : "0");
+
+ 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);
return system_if_flags(dev->ifname, IFF_UP, 0);
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);
.rtm_dst_len = route->mask,
.rtm_src_len = route->sourcemask,
.rtm_table = (table < 256) ? table : RT_TABLE_UNSPEC,
- .rtm_protocol = (route->flags & DEVADDR_KERNEL) ? RTPROT_KERNEL : RTPROT_STATIC,
+ .rtm_protocol = (route->flags & DEVROUTE_PROTO) ? route->proto : RTPROT_STATIC,
.rtm_scope = RT_SCOPE_NOWHERE,
.rtm_type = (cmd == RTM_DELROUTE) ? 0: RTN_UNICAST,
.rtm_flags = (route->flags & DEVROUTE_ONLINK) ? RTNH_F_ONLINK : 0,
return system_rtn_aton(type, id);
}
+bool system_resolve_rt_proto(const char *type, unsigned int *id)
+{
+ FILE *f;
+ char *e, buf[128];
+ unsigned int n, proto = 256;
+
+ if ((n = strtoul(type, &e, 0)) >= 0 && !*e && e != type)
+ proto = n;
+ else if (!strcmp(type, "unspec"))
+ proto = RTPROT_UNSPEC;
+ else if (!strcmp(type, "kernel"))
+ proto = RTPROT_KERNEL;
+ else if (!strcmp(type, "boot"))
+ proto = RTPROT_BOOT;
+ else if (!strcmp(type, "static"))
+ proto = RTPROT_STATIC;
+ else if ((f = fopen("/etc/iproute2/rt_protos", "r")) != NULL) {
+ while (fgets(buf, sizeof(buf) - 1, f) != NULL) {
+ if ((e = strtok(buf, " \t\n")) == NULL || *e == '#')
+ continue;
+
+ n = strtoul(e, NULL, 10);
+ e = strtok(NULL, " \t\n");
+
+ if (e && !strcmp(e, type)) {
+ proto = n;
+ break;
+ }
+ }
+ fclose(f);
+ }
+
+ if (proto > 255)
+ return false;
+
+ *id = proto;
+ return true;
+}
+
bool system_resolve_rt_table(const char *name, unsigned int *id)
{
FILE *f;
.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;
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;
+ int ret = 0, ttl = 0;
nlm = nlmsg_alloc_simple(RTM_NEWLINK, NLM_F_REQUEST | NLM_F_REPLACE | NLM_F_CREATE);
if (!nlm)
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")) {
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 ((cur = tb[TUNNEL_ATTR_DATA])) {
+ struct blob_attr *tb_data[__GRE_DATA_ATTR_MAX];
+
+ blobmsg_parse(gre_data_attr_list.params, __GRE_DATA_ATTR_MAX, tb_data,
+ blobmsg_data(cur), blobmsg_len(cur));
- if (ikey)
- iflags |= GRE_KEY;
+ if ((cur = tb_data[GRE_DATA_IKEY])) {
+ if ((ikey = blobmsg_get_u32(cur)))
+ iflags |= GRE_KEY;
+ }
- if (okey)
- oflags |= GRE_KEY;
+ if ((cur = tb_data[GRE_DATA_OKEY])) {
+ if ((okey = blobmsg_get_u32(cur)))
+ oflags |= GRE_KEY;
+ }
- if (icsum)
- iflags |= GRE_CSUM;
+ if ((cur = tb_data[GRE_DATA_ICSUM])) {
+ if (blobmsg_get_bool(cur))
+ iflags |= GRE_CSUM;
+ }
- if (ocsum)
- oflags |= GRE_CSUM;
+ if ((cur = tb_data[GRE_DATA_OCSUM])) {
+ if (blobmsg_get_bool(cur))
+ oflags |= GRE_CSUM;
+ }
- if (iseqno)
- iflags |= GRE_SEQ;
+ if ((cur = tb_data[GRE_DATA_ISEQNO])) {
+ if (blobmsg_get_bool(cur))
+ iflags |= GRE_SEQ;
+ }
- if (oseqno)
- oflags |= GRE_SEQ;
+ if ((cur = tb[GRE_DATA_OSEQNO])) {
+ if (blobmsg_get_bool(cur))
+ oflags |= GRE_SEQ;
+ }
}
if (v6) {
if (flags)
nla_put_u32(nlm, IFLA_GRE_FLAGS, flags);
+
+ if (!ttl)
+ ttl = 64;
} else {
struct in_addr inbuf;
bool set_df = true;
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;
- }
+ if (!set_df) {
+ /* ttl != 0 and nopmtudisc are incompatible */
+ if (ttl) {
+ ret = -EINVAL;
+ goto failure;
+ }
+ } else if (!ttl)
+ ttl = 64;
nla_put_u8(nlm, IFLA_GRE_PMTUDISC, set_df ? 1 : 0);
nla_put_u8(nlm, IFLA_GRE_TOS, tos);
}
+ if (ttl)
+ nla_put_u8(nlm, IFLA_GRE_TTL, ttl);
+
if (oflags)
nla_put_u16(nlm, IFLA_GRE_OFLAGS, oflags);
}
#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)
+{
+ struct nl_msg *nlm;
+ struct ifinfomsg ifi = { .ifi_family = AF_UNSPEC, };
+ struct blob_attr *cur;
+ 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 (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 ((cur = tb[TUNNEL_ATTR_DATA])) {
+ struct blob_attr *tb_data[__VTI_DATA_ATTR_MAX];
+ uint32_t ikey = 0, okey = 0;
+
+ blobmsg_parse(vti_data_attr_list.params, __VTI_DATA_ATTR_MAX, tb_data,
+ blobmsg_data(cur), blobmsg_len(cur));
+
+ if ((cur = tb_data[VTI_DATA_IKEY])) {
+ if ((ikey = blobmsg_get_u32(cur)))
+ nla_put_u32(nlm, IFLA_VTI_IKEY, htonl(ikey));
+ }
+
+ if ((cur = tb_data[VTI_DATA_OKEY])) {
+ if ((okey = blobmsg_get_u32(cur)))
+ nla_put_u32(nlm, IFLA_VTI_OKEY, htonl(okey));
+ }
+ }
+
+ nla_nest_end(nlm, infodata);
+ nla_nest_end(nlm, linkinfo);
+
+ return system_rtnl_call(nlm);
+
+failure:
+ nlmsg_free(nlm);
+ return ret;
+}
+#endif
+
+#ifdef IFLA_VXLAN_MAX
+static int system_add_vxlan(const char *name, const unsigned int link, struct blob_attr **tb, bool v6)
+{
+ struct blob_attr *tb_data[__VXLAN_DATA_ATTR_MAX];
+ struct nl_msg *msg;
+ struct nlattr *linkinfo, *data;
+ struct ifinfomsg iim = { .ifi_family = AF_UNSPEC, };
+ struct blob_attr *cur;
+ int ret = 0;
+
+ if ((cur = tb[TUNNEL_ATTR_DATA]))
+ blobmsg_parse(vxlan_data_attr_list.params, __VXLAN_DATA_ATTR_MAX, tb_data,
+ blobmsg_data(cur), blobmsg_len(cur));
+ else
+ return -EINVAL;
+
+ 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, name);
+
+ if ((cur = tb_data[VXLAN_DATA_ATTR_MACADDR])) {
+ struct ether_addr *ea = ether_aton(blobmsg_get_string(cur));
+ if (!ea) {
+ ret = -EINVAL;
+ goto failure;
+ }
+
+ nla_put(msg, IFLA_ADDRESS, ETH_ALEN, ea);
+ }
+
+ if ((cur = tb[TUNNEL_ATTR_MTU])) {
+ uint32_t mtu = blobmsg_get_u32(cur);
+ nla_put_u32(msg, IFLA_MTU, mtu);
+ }
+
+ if (!(linkinfo = nla_nest_start(msg, IFLA_LINKINFO))) {
+ ret = -ENOMEM;
+ goto failure;
+ }
+
+ nla_put_string(msg, IFLA_INFO_KIND, "vxlan");
+
+ if (!(data = nla_nest_start(msg, IFLA_INFO_DATA))) {
+ ret = -ENOMEM;
+ goto failure;
+ }
+
+ if (link)
+ nla_put_u32(msg, IFLA_VXLAN_LINK, link);
+
+ if ((cur = tb_data[VXLAN_DATA_ATTR_ID])) {
+ uint32_t id = blobmsg_get_u32(cur);
+ if (id >= (1u << 24) - 1) {
+ ret = -EINVAL;
+ goto failure;
+ }
+
+ nla_put_u32(msg, IFLA_VXLAN_ID, id);
+ }
+
+ 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(msg, IFLA_VXLAN_LOCAL6, 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(msg, IFLA_VXLAN_GROUP6, 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(msg, IFLA_VXLAN_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(msg, IFLA_VXLAN_GROUP, sizeof(inbuf), &inbuf);
+ }
+ }
+
+ uint32_t port = 4789;
+ if ((cur = tb_data[VXLAN_DATA_ATTR_PORT])) {
+ port = blobmsg_get_u32(cur);
+ if (port < 1 || port > 65535) {
+ ret = -EINVAL;
+ goto failure;
+ }
+ }
+ nla_put_u16(msg, IFLA_VXLAN_PORT, htons(port));
+
+ if ((cur = tb[TUNNEL_ATTR_TOS])) {
+ char *str = blobmsg_get_string(cur);
+ unsigned tos = 1;
+
+ if (strcmp(str, "inherit")) {
+ if (!system_tos_aton(str, &tos))
+ return -EINVAL;
+ }
+
+ nla_put_u8(msg, IFLA_VXLAN_TOS, tos);
+ }
+
+ if ((cur = tb[TUNNEL_ATTR_TTL])) {
+ uint32_t ttl = blobmsg_get_u32(cur);
+ if (ttl < 1 || ttl > 255) {
+ ret = -EINVAL;
+ goto failure;
+ }
+
+ nla_put_u8(msg, IFLA_VXLAN_TTL, ttl);
+ }
+
+ nla_nest_end(msg, data);
+ nla_nest_end(msg, linkinfo);
+
+ ret = system_rtnl_call(msg);
+ if (ret)
+ D(SYSTEM, "Error adding vxlan '%s': %d\n", name, ret);
+
+ return ret;
+
+failure:
+ nlmsg_free(msg);
+ 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,
+ .link = link,
.iph = {
.version = 4,
.ihl = 5,
str = blobmsg_data(cur);
if (!strcmp(str, "greip") || !strcmp(str, "gretapip") ||
- !strcmp(str, "greip6") || !strcmp(str, "gretapip6"))
+ !strcmp(str, "greip6") || !strcmp(str, "gretapip6") ||
+ !strcmp(str, "vtiip") || !strcmp(str, "vtiip6") ||
+ !strcmp(str, "vxlan") || !strcmp(str, "vxlan6"))
return system_link_del(name);
else
return tunnel_ioctl(name, SIOCDELTUNNEL, NULL);
{
int ret = -1;
char buf[64];
+ int fd;
+
snprintf(buf, sizeof(buf), "/proc/sys/net/ipv6/conf/%s/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);
+ fd = open(buf, O_RDWR);
+ if (fd < 0)
+ return ret;
- 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);
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
+#ifdef IFLA_VXLAN_MAX
+ } else if(!strcmp(str, "vxlan")) {
+ return system_add_vxlan(name, link, tb, false);
+ } else if(!strcmp(str, "vxlan6")) {
+ return system_add_vxlan(name, link, tb, true);
+#endif
#endif
} else if (!strcmp(str, "ipip")) {
return system_add_proto_tunnel(name, IPPROTO_IPIP, link, tb);
projects / project / netifd.git / blobdiff