X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fnetifd.git;a=blobdiff_plain;f=system-linux.c;h=744742279efc719a2f1e666947b08153de0f89da;hp=12682dca33993c56f67dd07a28ccd9e3983c76f9;hb=8f0c8e8e91945a3e5c3fa7111b2a3494b731b32c;hpb=3d26347d0042313be3c9347f8d82c4ccea67fe68 diff --git a/system-linux.c b/system-linux.c index 12682dc..7447422 100644 --- a/system-linux.c +++ b/system-linux.c @@ -211,6 +211,40 @@ static void system_set_disable_ipv6(struct device *dev, const char *val) system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6", dev->ifname, val); } +static int system_get_sysctl(const char *path, char *buf, const size_t buf_sz) +{ + int fd = -1, ret = -1; + + fd = open(path, O_RDONLY); + if (fd < 0) + goto out; + + ssize_t len = read(fd, buf, buf_sz - 1); + if (len < 0) + goto out; + + ret = buf[len] = 0; + +out: + if (fd >= 0) + close(fd); + + return ret; +} + +static int +system_get_dev_sysctl(const char *path, const char *device, char *buf, const size_t buf_sz) +{ + snprintf(dev_buf, sizeof(dev_buf), path, device); + return system_get_sysctl(dev_buf, buf, buf_sz); +} + +static int system_get_disable_ipv6(struct device *dev, char *buf, const size_t buf_sz) +{ + return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6", + dev->ifname, buf, buf_sz); +} + #ifndef IFF_LOWER_UP #define IFF_LOWER_UP 0x10000 #endif @@ -380,7 +414,6 @@ int system_bridge_addif(struct device *bridge, struct device *dev) { char *oldbr; - system_set_disable_ipv6(dev, "1"); oldbr = system_get_bridge(dev->ifname, dev_buf, sizeof(dev_buf)); if (oldbr && !strcmp(oldbr, bridge->ifname)) return 0; @@ -390,7 +423,6 @@ int system_bridge_addif(struct device *bridge, struct device *dev) int system_bridge_delif(struct device *bridge, struct device *dev) { - system_set_disable_ipv6(dev, "0"); return system_bridge_if(bridge->ifname, dev, SIOCBRDELIF, NULL); } @@ -579,11 +611,8 @@ void system_if_clear_state(struct device *dev) static char buf[256]; char *bridge; - if (dev->external) - return; - device_set_ifindex(dev, system_if_resolve(dev)); - if (!dev->ifindex) + if (dev->external || !dev->ifindex) return; system_if_flags(dev->ifname, 0, IFF_UP); @@ -777,6 +806,7 @@ static void system_if_get_settings(struct device *dev, struct device_settings *s) { struct ifreq ifr; + char buf[10]; memset(&ifr, 0, sizeof(ifr)); strncpy(ifr.ifr_name, dev->ifname, sizeof(ifr.ifr_name)); @@ -795,37 +825,47 @@ system_if_get_settings(struct device *dev, struct device_settings *s) memcpy(s->macaddr, &ifr.ifr_hwaddr.sa_data, sizeof(s->macaddr)); s->flags |= DEV_OPT_MACADDR; } + + if (!system_get_disable_ipv6(dev, buf, sizeof(buf))) { + s->ipv6 = !strtoul(buf, NULL, 0); + s->flags |= DEV_OPT_IPV6; + } } void -system_if_apply_settings(struct device *dev, struct device_settings *s) +system_if_apply_settings(struct device *dev, struct device_settings *s, unsigned int apply_mask) { struct ifreq ifr; + if (!apply_mask) + return; + memset(&ifr, 0, sizeof(ifr)); strncpy(ifr.ifr_name, dev->ifname, sizeof(ifr.ifr_name)); - if (s->flags & DEV_OPT_MTU) { + 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_TXQUEUELEN) { + 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_MACADDR) && !dev->external) { + if ((s->flags & DEV_OPT_MACADDR & apply_mask) && !dev->external) { ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER; memcpy(&ifr.ifr_hwaddr.sa_data, s->macaddr, sizeof(s->macaddr)); if (ioctl(sock_ioctl, SIOCSIFHWADDR, &ifr) < 0) s->flags &= ~DEV_OPT_MACADDR; } + if (s->flags & DEV_OPT_IPV6 & apply_mask) + system_set_disable_ipv6(dev, s->ipv6 ? "0" : "1"); } int system_if_up(struct device *dev) { system_if_get_settings(dev, &dev->orig_settings); - system_if_apply_settings(dev, &dev->settings); + 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); } @@ -834,7 +874,7 @@ 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); + system_if_apply_settings(dev, &dev->orig_settings, dev->orig_settings.flags); return ret; } @@ -1181,6 +1221,7 @@ static int system_rt(struct device *dev, struct device_route *route, int cmd) .rtm_protocol = (route->flags & DEVADDR_KERNEL) ? RTPROT_KERNEL : RTPROT_STATIC, .rtm_scope = scope, .rtm_type = (cmd == RTM_DELROUTE) ? 0: RTN_UNICAST, + .rtm_flags = (route->flags & DEVROUTE_ONLINK) ? RTNH_F_ONLINK : 0, }; struct nl_msg *msg; @@ -1217,7 +1258,22 @@ static int system_rt(struct device *dev, struct device_route *route, int cmd) if (table >= 256) nla_put_u32(msg, RTA_TABLE, table); + if (route->flags & DEVROUTE_MTU) { + struct nlattr *metrics; + + if (!(metrics = nla_nest_start(msg, RTA_METRICS))) + goto nla_put_failure; + + nla_put_u32(msg, RTAX_MTU, route->mtu); + + nla_nest_end(msg, metrics); + } + return system_rtnl_call(msg); + +nla_put_failure: + nlmsg_free(msg); + return -ENOMEM; } int system_add_route(struct device *dev, struct device_route *route) @@ -1617,24 +1673,84 @@ int system_add_ip_tunnel(const char *name, struct blob_attr *attr) } #endif } else if (!strcmp(str, "ipip6")) { - struct ip6_tnl_parm p = { - .link = link, - .proto = IPPROTO_IPIP, - .hop_limit = (ttl) ? ttl : 64, - .encap_limit = 4, - }; + struct nl_msg *nlm = nlmsg_alloc_simple(RTM_NEWLINK, + NLM_F_REQUEST | NLM_F_REPLACE | NLM_F_CREATE); - if ((cur = tb[TUNNEL_ATTR_LOCAL]) && - inet_pton(AF_INET6, blobmsg_data(cur), &p.laddr) < 1) - return -EINVAL; + struct ifinfomsg ifi = { .ifi_family = AF_UNSPEC }; + nlmsg_append(nlm, &ifi, sizeof(ifi), 0); + nla_put_string(nlm, IFLA_IFNAME, name); - if ((cur = tb[TUNNEL_ATTR_REMOTE]) && - inet_pton(AF_INET6, blobmsg_data(cur), &p.raddr) < 1) - return -EINVAL; + if (link) + nla_put_u32(nlm, IFLA_LINK, link); - strncpy(p.name, name, sizeof(p.name)); - if (tunnel_ioctl("ip6tnl0", SIOCADDTUNNEL, &p) < 0) - return -1; + struct nlattr *linkinfo = nla_nest_start(nlm, IFLA_LINKINFO); + nla_put_string(nlm, IFLA_INFO_KIND, "ip6tnl"); + struct nlattr *infodata = nla_nest_start(nlm, IFLA_INFO_DATA); + + 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) + return -EINVAL; + 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) + return -EINVAL; + 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) + return -EINVAL; + + struct in6_addr ip6prefix; + struct in_addr ip4prefix; + if (inet_pton(AF_INET6, ip6buf, &ip6prefix) != 1 || + inet_pton(AF_INET, ip4buf, &ip4prefix) != 1) + return -EINVAL; + + 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); } else return -EINVAL;