#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>
#define RTN_FAILED_POLICY 12
#endif
+#ifndef RT_TABLE_PRELOCAL
+#define RT_TABLE_PRELOCAL 128
+#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>
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_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 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_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_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);
- if (!dev || dev->type->keep_link_status)
+ if (!dev)
goto out;
if (!system_get_dev_sysctl("/sys/class/net/%s/carrier", dev->ifname, buf, sizeof(buf)))
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);
+ }
return ret;
}
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)
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");
+ bridge->ifname, cfg->multicast_querier ? "1" : "0");
+
+ snprintf(buf, sizeof(buf), "%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, sizeof(buf), "%i", bridge->settings.multicast_router);
+ system_bridge_set_multicast_router(bridge, buf, true);
+ }
args[0] = BRCTL_SET_BRIDGE_PRIORITY;
args[1] = cfg->priority;
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;
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_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);
+}
+
+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) {
+ 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_DADTRANSMITS & apply_mask) {
+ snprintf(buf, sizeof(buf), "%d", s->dadtransmits);
+ system_set_dadtransmits(dev, buf);
+ }
+
+ 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);
table = RT_TABLE_MAIN;
else if (!strcmp(name, "local"))
table = RT_TABLE_LOCAL;
+ else if (!strcmp(name, "prelocal"))
+ table = RT_TABLE_PRELOCAL;
/* try to look up name in /etc/iproute2/rt_tables */
else if ((f = fopen("/etc/iproute2/rt_tables", "r")) != NULL)
return true;
}
-bool system_resolve_igmpversion(const unsigned int version, unsigned int *id)
-{
- if (!version || version > 3)
- return false;
-
- *id = version;
- if (*id == 3)
- *id = 0;
-
- 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;
rule.flags = IPRULE_INET4 | IPRULE_PRIORITY | IPRULE_LOOKUP;
rule.priority = 0;
+ rule.lookup = RT_TABLE_PRELOCAL;
+ rv |= system_iprule(&rule, RTM_NEWRULE);
+
+ rule.priority = 1;
rule.lookup = RT_TABLE_LOCAL;
rv |= system_iprule(&rule, RTM_NEWRULE);
rule.flags = IPRULE_INET6 | IPRULE_PRIORITY | IPRULE_LOOKUP;
rule.priority = 0;
+ rule.lookup = RT_TABLE_PRELOCAL;
+ rv |= system_iprule(&rule, RTM_NEWRULE);
+
+ rule.priority = 1;
rule.lookup = RT_TABLE_LOCAL;
rv |= system_iprule(&rule, RTM_NEWRULE);
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) {
+ ssize_t len = read(fd, buf, sizeof(buf) - 1);
+ if (len < 0)
+ goto out;
- if (!mtu || ret <= mtu)
- 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);
projects / project / netifd.git / blobdiff