#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 IFA_F_NOPREFIXROUTE 0x200
#endif
+#ifndef IFA_FLAGS
+#define IFA_FLAGS (IFA_MULTICAST + 1)
+#endif
+
+
#include <string.h>
#include <fcntl.h>
#include <glob.h>
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_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)
{
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)
system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier",
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;
system_bridge_if(bridge->ifname, NULL, SIOCDEVPRIVATE, &args);
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_dadtransmits(dev, buf, sizeof(buf))) {
+ s->dadtransmits = strtoul(buf, NULL, 0);
+ s->flags |= DEV_OPT_DADTRANSMITS;
+ }
}
static void
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_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 (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_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);
}
{
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;
.ifa_family = (alen == 4) ? AF_INET : AF_INET6,
.ifa_prefixlen = addr->mask,
.ifa_index = dev->ifindex,
- .ifa_flags = (addr->flags & DEVADDR_OFFLINK) ? IFA_F_NOPREFIXROUTE : 0,
};
struct nl_msg *msg;
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_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;
}
#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;
+ 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, okey);
+
+ if (ikey)
+ nla_put_u32(nlm, IFLA_VTI_IKEY, 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;
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"))
return system_link_del(name);
else
return tunnel_ioctl(name, SIOCDELTUNNEL, NULL);
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);
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);
projects / project / netifd.git / blobdiff