5 * Copyright (C) 2007-2012 Intel Corporation. All rights reserved.
6 * Copyright (C) 2003-2005 Go-Core Project
7 * Copyright (C) 2003-2006 Helsinki University of Technology
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
35 #include <sys/ioctl.h>
36 #include <sys/socket.h>
37 #include <linux/sockios.h>
39 #include <arpa/inet.h>
40 #include <net/route.h>
41 #include <net/ethernet.h>
43 #include <net/if_arp.h>
44 #include <netinet/icmp6.h>
46 #include <linux/if_tun.h>
51 #define NLMSG_TAIL(nmsg) \
52 ((struct rtattr *) (((uint8_t*) (nmsg)) + \
53 NLMSG_ALIGN((nmsg)->nlmsg_len)))
55 int __connman_inet_rtnl_addattr_l(struct nlmsghdr *n, size_t max_length,
56 int type, const void *data, size_t data_length)
61 length = RTA_LENGTH(data_length);
63 if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(length) > max_length)
68 rta->rta_len = length;
69 memcpy(RTA_DATA(rta), data, data_length);
70 n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(length);
75 int __connman_inet_modify_address(int cmd, int flags,
76 int index, int family,
79 unsigned char prefixlen,
80 const char *broadcast)
82 uint8_t request[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
83 NLMSG_ALIGN(sizeof(struct ifaddrmsg)) +
84 RTA_LENGTH(sizeof(struct in6_addr)) +
85 RTA_LENGTH(sizeof(struct in6_addr))];
87 struct nlmsghdr *header;
88 struct sockaddr_nl nl_addr;
89 struct ifaddrmsg *ifaddrmsg;
90 struct in6_addr ipv6_addr;
91 struct in_addr ipv4_addr, ipv4_dest, ipv4_bcast;
94 DBG("cmd %#x flags %#x index %d family %d address %s peer %s "
95 "prefixlen %hhu broadcast %s", cmd, flags, index, family,
96 address, peer, prefixlen, broadcast);
101 if (family != AF_INET && family != AF_INET6)
104 memset(&request, 0, sizeof(request));
106 header = (struct nlmsghdr *)request;
107 header->nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg));
108 header->nlmsg_type = cmd;
109 header->nlmsg_flags = NLM_F_REQUEST | flags;
110 header->nlmsg_seq = 1;
112 ifaddrmsg = NLMSG_DATA(header);
113 ifaddrmsg->ifa_family = family;
114 ifaddrmsg->ifa_prefixlen = prefixlen;
115 ifaddrmsg->ifa_flags = IFA_F_PERMANENT;
116 ifaddrmsg->ifa_scope = RT_SCOPE_UNIVERSE;
117 ifaddrmsg->ifa_index = index;
119 if (family == AF_INET) {
120 if (inet_pton(AF_INET, address, &ipv4_addr) < 1)
123 if (broadcast != NULL)
124 inet_pton(AF_INET, broadcast, &ipv4_bcast);
126 ipv4_bcast.s_addr = ipv4_addr.s_addr |
127 htonl(0xfffffffflu >> prefixlen);
130 if (inet_pton(AF_INET, peer, &ipv4_dest) < 1)
133 err = __connman_inet_rtnl_addattr_l(header,
142 err = __connman_inet_rtnl_addattr_l(header,
150 err = __connman_inet_rtnl_addattr_l(header,
158 } else if (family == AF_INET6) {
159 if (inet_pton(AF_INET6, address, &ipv6_addr) < 1)
162 err = __connman_inet_rtnl_addattr_l(header,
171 sk = socket(AF_NETLINK, SOCK_DGRAM | SOCK_CLOEXEC, NETLINK_ROUTE);
175 memset(&nl_addr, 0, sizeof(nl_addr));
176 nl_addr.nl_family = AF_NETLINK;
178 if ((err = sendto(sk, request, header->nlmsg_len, 0,
179 (struct sockaddr *) &nl_addr, sizeof(nl_addr))) < 0)
190 int connman_inet_ifindex(const char *name)
198 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
202 memset(&ifr, 0, sizeof(ifr));
203 strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
205 err = ioctl(sk, SIOCGIFINDEX, &ifr);
212 return ifr.ifr_ifindex;
215 char *connman_inet_ifname(int index)
223 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
227 memset(&ifr, 0, sizeof(ifr));
228 ifr.ifr_ifindex = index;
230 err = ioctl(sk, SIOCGIFNAME, &ifr);
237 return g_strdup(ifr.ifr_name);
240 short int connman_inet_ifflags(int index)
245 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
249 memset(&ifr, 0, sizeof(ifr));
250 ifr.ifr_ifindex = index;
252 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
257 if (ioctl(sk, SIOCGIFFLAGS, &ifr) < 0) {
270 int connman_inet_ifup(int index)
275 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
279 memset(&ifr, 0, sizeof(ifr));
280 ifr.ifr_ifindex = index;
282 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
287 if (ioctl(sk, SIOCGIFFLAGS, &ifr) < 0) {
292 if (ifr.ifr_flags & IFF_UP) {
297 ifr.ifr_flags |= (IFF_UP|IFF_DYNAMIC);
299 if (ioctl(sk, SIOCSIFFLAGS, &ifr) < 0) {
312 int connman_inet_ifdown(int index)
314 struct ifreq ifr, addr_ifr;
315 struct sockaddr_in *addr;
318 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
322 memset(&ifr, 0, sizeof(ifr));
323 ifr.ifr_ifindex = index;
325 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
330 if (ioctl(sk, SIOCGIFFLAGS, &ifr) < 0) {
335 memset(&addr_ifr, 0, sizeof(addr_ifr));
336 memcpy(&addr_ifr.ifr_name, &ifr.ifr_name, sizeof(ifr.ifr_name));
337 addr = (struct sockaddr_in *)&addr_ifr.ifr_addr;
338 addr->sin_family = AF_INET;
339 if (ioctl(sk, SIOCSIFADDR, &addr_ifr) < 0)
340 connman_warn("Could not clear IPv4 address index %d", index);
342 if (!(ifr.ifr_flags & IFF_UP)) {
347 ifr.ifr_flags = (ifr.ifr_flags & ~IFF_UP) | IFF_DYNAMIC;
349 if (ioctl(sk, SIOCSIFFLAGS, &ifr) < 0)
360 connman_bool_t connman_inet_is_cfg80211(int index)
362 connman_bool_t result = FALSE;
363 char phy80211_path[PATH_MAX];
368 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
372 memset(&ifr, 0, sizeof(ifr));
373 ifr.ifr_ifindex = index;
375 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0)
378 snprintf(phy80211_path, PATH_MAX,
379 "/sys/class/net/%s/phy80211", ifr.ifr_name);
381 if (stat(phy80211_path, &st) == 0 && (st.st_mode & S_IFDIR))
391 struct in6_addr ifr6_addr;
392 __u32 ifr6_prefixlen;
393 unsigned int ifr6_ifindex;
396 int connman_inet_set_ipv6_address(int index,
397 struct connman_ipaddress *ipaddress)
400 unsigned char prefix_len;
403 if (ipaddress->local == NULL)
406 prefix_len = ipaddress->prefixlen;
407 address = ipaddress->local;
409 DBG("index %d address %s prefix_len %d", index, address, prefix_len);
411 err = __connman_inet_modify_address(RTM_NEWADDR,
412 NLM_F_REPLACE | NLM_F_ACK, index, AF_INET6,
413 address, NULL, prefix_len, NULL);
415 connman_error("%s: %s", __func__, strerror(-err));
422 int connman_inet_set_address(int index, struct connman_ipaddress *ipaddress)
425 unsigned char prefix_len;
426 const char *address, *broadcast, *peer;
428 if (ipaddress->local == NULL)
431 prefix_len = ipaddress->prefixlen;
432 address = ipaddress->local;
433 broadcast = ipaddress->broadcast;
434 peer = ipaddress->peer;
436 DBG("index %d address %s prefix_len %d", index, address, prefix_len);
438 err = __connman_inet_modify_address(RTM_NEWADDR,
439 NLM_F_REPLACE | NLM_F_ACK, index, AF_INET,
440 address, peer, prefix_len, broadcast);
442 connman_error("%s: %s", __func__, strerror(-err));
449 int connman_inet_clear_ipv6_address(int index, const char *address,
454 DBG("index %d address %s prefix_len %d", index, address, prefix_len);
456 err = __connman_inet_modify_address(RTM_DELADDR, 0, index, AF_INET6,
457 address, NULL, prefix_len, NULL);
459 connman_error("%s: %s", __func__, strerror(-err));
466 int connman_inet_clear_address(int index, struct connman_ipaddress *ipaddress)
469 unsigned char prefix_len;
470 const char *address, *broadcast, *peer;
472 prefix_len = ipaddress->prefixlen;
473 address = ipaddress->local;
474 broadcast = ipaddress->broadcast;
475 peer = ipaddress->peer;
477 DBG("index %d address %s prefix_len %d", index, address, prefix_len);
479 err = __connman_inet_modify_address(RTM_DELADDR, 0, index, AF_INET,
480 address, peer, prefix_len, broadcast);
482 connman_error("%s: %s", __func__, strerror(-err));
489 int connman_inet_add_host_route(int index, const char *host,
492 return connman_inet_add_network_route(index, host, gateway, NULL);
495 int connman_inet_del_host_route(int index, const char *host)
497 return connman_inet_del_network_route(index, host);
500 int connman_inet_add_network_route(int index, const char *host,
506 struct sockaddr_in addr;
509 DBG("index %d host %s gateway %s netmask %s", index,
510 host, gateway, netmask);
512 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
518 memset(&ifr, 0, sizeof(ifr));
519 ifr.ifr_ifindex = index;
521 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
527 DBG("ifname %s", ifr.ifr_name);
529 memset(&rt, 0, sizeof(rt));
530 rt.rt_flags = RTF_UP;
532 rt.rt_flags |= RTF_GATEWAY;
534 rt.rt_flags |= RTF_HOST;
536 memset(&addr, 0, sizeof(addr));
537 addr.sin_family = AF_INET;
538 addr.sin_addr.s_addr = inet_addr(host);
539 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
541 memset(&addr, 0, sizeof(addr));
542 addr.sin_family = AF_INET;
544 addr.sin_addr.s_addr = inet_addr(gateway);
546 addr.sin_addr.s_addr = INADDR_ANY;
547 memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
549 memset(&addr, 0, sizeof(addr));
550 addr.sin_family = AF_INET;
551 addr.sin_addr.s_addr = INADDR_ANY;
553 addr.sin_addr.s_addr = inet_addr(netmask);
555 addr.sin_addr.s_addr = INADDR_ANY;
556 memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
558 rt.rt_dev = ifr.ifr_name;
560 if (ioctl(sk, SIOCADDRT, &rt) < 0 && errno != EEXIST)
567 connman_error("Adding host route failed (%s)",
573 int connman_inet_del_network_route(int index, const char *host)
577 struct sockaddr_in addr;
580 DBG("index %d host %s", index, host);
582 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
588 memset(&ifr, 0, sizeof(ifr));
589 ifr.ifr_ifindex = index;
591 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
597 DBG("ifname %s", ifr.ifr_name);
599 memset(&rt, 0, sizeof(rt));
600 rt.rt_flags = RTF_UP | RTF_HOST;
602 memset(&addr, 0, sizeof(addr));
603 addr.sin_family = AF_INET;
604 addr.sin_addr.s_addr = inet_addr(host);
605 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
607 rt.rt_dev = ifr.ifr_name;
609 if (ioctl(sk, SIOCDELRT, &rt) < 0 && errno != ESRCH)
616 connman_error("Deleting host route failed (%s)",
622 int connman_inet_del_ipv6_network_route(int index, const char *host,
623 unsigned char prefix_len)
628 DBG("index %d host %s", index, host);
633 memset(&rt, 0, sizeof(rt));
635 rt.rtmsg_dst_len = prefix_len;
637 if (inet_pton(AF_INET6, host, &rt.rtmsg_dst) < 0) {
642 rt.rtmsg_flags = RTF_UP | RTF_HOST;
645 rt.rtmsg_ifindex = index;
647 sk = socket(AF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
653 if (ioctl(sk, SIOCDELRT, &rt) < 0 && errno != ESRCH)
660 connman_error("Del IPv6 host route error (%s)",
666 int connman_inet_del_ipv6_host_route(int index, const char *host)
668 return connman_inet_del_ipv6_network_route(index, host, 128);
671 int connman_inet_add_ipv6_network_route(int index, const char *host,
673 unsigned char prefix_len)
678 DBG("index %d host %s gateway %s", index, host, gateway);
683 memset(&rt, 0, sizeof(rt));
685 rt.rtmsg_dst_len = prefix_len;
687 if (inet_pton(AF_INET6, host, &rt.rtmsg_dst) < 0) {
692 rt.rtmsg_flags = RTF_UP | RTF_HOST;
694 if (gateway != NULL) {
695 rt.rtmsg_flags |= RTF_GATEWAY;
696 inet_pton(AF_INET6, gateway, &rt.rtmsg_gateway);
700 rt.rtmsg_ifindex = index;
702 sk = socket(AF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
708 if (ioctl(sk, SIOCADDRT, &rt) < 0 && errno != EEXIST)
715 connman_error("Set IPv6 host route error (%s)",
721 int connman_inet_add_ipv6_host_route(int index, const char *host,
724 return connman_inet_add_ipv6_network_route(index, host, gateway, 128);
727 int connman_inet_set_ipv6_gateway_address(int index, const char *gateway)
732 DBG("index %d gateway %s", index, gateway);
737 memset(&rt, 0, sizeof(rt));
739 if (inet_pton(AF_INET6, gateway, &rt.rtmsg_gateway) < 0) {
744 rt.rtmsg_flags = RTF_UP | RTF_GATEWAY;
746 rt.rtmsg_dst_len = 0;
747 rt.rtmsg_ifindex = index;
749 sk = socket(AF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
755 if (ioctl(sk, SIOCADDRT, &rt) < 0 && errno != EEXIST)
762 connman_error("Set default IPv6 gateway error (%s)",
768 int connman_inet_clear_ipv6_gateway_address(int index, const char *gateway)
773 DBG("index %d gateway %s", index, gateway);
778 memset(&rt, 0, sizeof(rt));
780 if (inet_pton(AF_INET6, gateway, &rt.rtmsg_gateway) < 0) {
785 rt.rtmsg_flags = RTF_UP | RTF_GATEWAY;
787 rt.rtmsg_dst_len = 0;
788 rt.rtmsg_ifindex = index;
790 sk = socket(AF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
796 if (ioctl(sk, SIOCDELRT, &rt) < 0 && errno != ESRCH)
803 connman_error("Clear default IPv6 gateway error (%s)",
809 int connman_inet_set_gateway_address(int index, const char *gateway)
813 struct sockaddr_in addr;
816 DBG("index %d gateway %s", index, gateway);
818 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
824 memset(&ifr, 0, sizeof(ifr));
825 ifr.ifr_ifindex = index;
827 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
833 DBG("ifname %s", ifr.ifr_name);
835 memset(&rt, 0, sizeof(rt));
836 rt.rt_flags = RTF_UP | RTF_GATEWAY;
838 memset(&addr, 0, sizeof(addr));
839 addr.sin_family = AF_INET;
840 addr.sin_addr.s_addr = INADDR_ANY;
841 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
843 memset(&addr, 0, sizeof(addr));
844 addr.sin_family = AF_INET;
845 addr.sin_addr.s_addr = inet_addr(gateway);
846 memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
848 memset(&addr, 0, sizeof(addr));
849 addr.sin_family = AF_INET;
850 addr.sin_addr.s_addr = INADDR_ANY;
851 memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
853 if (ioctl(sk, SIOCADDRT, &rt) < 0 && errno != EEXIST)
860 connman_error("Setting default gateway route failed (%s)",
866 int connman_inet_set_gateway_interface(int index)
870 struct sockaddr_in addr;
873 DBG("index %d", index);
875 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
881 memset(&ifr, 0, sizeof(ifr));
882 ifr.ifr_ifindex = index;
884 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
890 DBG("ifname %s", ifr.ifr_name);
892 memset(&rt, 0, sizeof(rt));
893 rt.rt_flags = RTF_UP;
895 memset(&addr, 0, sizeof(addr));
896 addr.sin_family = AF_INET;
897 addr.sin_addr.s_addr = INADDR_ANY;
899 memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
900 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
901 memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
903 rt.rt_dev = ifr.ifr_name;
905 if (ioctl(sk, SIOCADDRT, &rt) < 0 && errno != EEXIST)
912 connman_error("Setting default interface route failed (%s)",
918 int connman_inet_set_ipv6_gateway_interface(int index)
922 struct sockaddr_in6 addr;
923 const struct in6_addr any = IN6ADDR_ANY_INIT;
926 DBG("index %d", index);
928 sk = socket(PF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
934 memset(&ifr, 0, sizeof(ifr));
935 ifr.ifr_ifindex = index;
937 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
943 DBG("ifname %s", ifr.ifr_name);
945 memset(&rt, 0, sizeof(rt));
946 rt.rt_flags = RTF_UP;
948 memset(&addr, 0, sizeof(addr));
949 addr.sin6_family = AF_INET6;
950 addr.sin6_addr = any;
952 memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
953 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
954 memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
956 rt.rt_dev = ifr.ifr_name;
958 if (ioctl(sk, SIOCADDRT, &rt) < 0 && errno != EEXIST)
965 connman_error("Setting default interface route failed (%s)",
971 int connman_inet_clear_gateway_address(int index, const char *gateway)
975 struct sockaddr_in addr;
978 DBG("index %d gateway %s", index, gateway);
980 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
986 memset(&ifr, 0, sizeof(ifr));
987 ifr.ifr_ifindex = index;
989 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
995 DBG("ifname %s", ifr.ifr_name);
997 memset(&rt, 0, sizeof(rt));
998 rt.rt_flags = RTF_UP | RTF_GATEWAY;
1000 memset(&addr, 0, sizeof(addr));
1001 addr.sin_family = AF_INET;
1002 addr.sin_addr.s_addr = INADDR_ANY;
1003 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
1005 memset(&addr, 0, sizeof(addr));
1006 addr.sin_family = AF_INET;
1007 addr.sin_addr.s_addr = inet_addr(gateway);
1008 memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
1010 memset(&addr, 0, sizeof(addr));
1011 addr.sin_family = AF_INET;
1012 addr.sin_addr.s_addr = INADDR_ANY;
1013 memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
1015 if (ioctl(sk, SIOCDELRT, &rt) < 0 && errno != ESRCH)
1022 connman_error("Removing default gateway route failed (%s)",
1028 int connman_inet_clear_gateway_interface(int index)
1032 struct sockaddr_in addr;
1035 DBG("index %d", index);
1037 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1043 memset(&ifr, 0, sizeof(ifr));
1044 ifr.ifr_ifindex = index;
1046 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
1052 DBG("ifname %s", ifr.ifr_name);
1054 memset(&rt, 0, sizeof(rt));
1055 rt.rt_flags = RTF_UP;
1057 memset(&addr, 0, sizeof(addr));
1058 addr.sin_family = AF_INET;
1059 addr.sin_addr.s_addr = INADDR_ANY;
1061 memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
1062 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
1063 memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
1065 rt.rt_dev = ifr.ifr_name;
1067 if (ioctl(sk, SIOCDELRT, &rt) < 0 && errno != ESRCH)
1074 connman_error("Removing default interface route failed (%s)",
1080 int connman_inet_clear_ipv6_gateway_interface(int index)
1084 struct sockaddr_in6 addr;
1085 const struct in6_addr any = IN6ADDR_ANY_INIT;
1088 DBG("index %d", index);
1090 sk = socket(PF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1096 memset(&ifr, 0, sizeof(ifr));
1097 ifr.ifr_ifindex = index;
1099 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
1105 DBG("ifname %s", ifr.ifr_name);
1107 memset(&rt, 0, sizeof(rt));
1108 rt.rt_flags = RTF_UP;
1110 memset(&addr, 0, sizeof(addr));
1111 addr.sin6_family = AF_INET6;
1112 addr.sin6_addr = any;
1114 memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
1115 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
1116 memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
1118 rt.rt_dev = ifr.ifr_name;
1120 if (ioctl(sk, SIOCDELRT, &rt) < 0 && errno != ESRCH)
1127 connman_error("Removing default interface route failed (%s)",
1133 connman_bool_t connman_inet_compare_subnet(int index, const char *host)
1136 struct in_addr _host_addr;
1137 in_addr_t host_addr, netmask_addr, if_addr;
1138 struct sockaddr_in *netmask, *addr;
1141 DBG("host %s", host);
1146 if (inet_aton(host, &_host_addr) == 0)
1148 host_addr = _host_addr.s_addr;
1150 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1154 memset(&ifr, 0, sizeof(ifr));
1155 ifr.ifr_ifindex = index;
1157 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
1162 if (ioctl(sk, SIOCGIFNETMASK, &ifr) < 0) {
1167 netmask = (struct sockaddr_in *)&ifr.ifr_netmask;
1168 netmask_addr = netmask->sin_addr.s_addr;
1170 if (ioctl(sk, SIOCGIFADDR, &ifr) < 0) {
1177 addr = (struct sockaddr_in *)&ifr.ifr_addr;
1178 if_addr = addr->sin_addr.s_addr;
1180 return ((if_addr & netmask_addr) == (host_addr & netmask_addr));
1183 int connman_inet_remove_from_bridge(int index, const char *bridge)
1191 sk = socket(AF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0);
1197 memset(&ifr, 0, sizeof(ifr));
1198 strncpy(ifr.ifr_name, bridge, IFNAMSIZ - 1);
1199 ifr.ifr_ifindex = index;
1201 if (ioctl(sk, SIOCBRDELIF, &ifr) < 0)
1208 connman_error("Remove interface from bridge error %s",
1214 int connman_inet_add_to_bridge(int index, const char *bridge)
1222 sk = socket(AF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0);
1228 memset(&ifr, 0, sizeof(ifr));
1229 strncpy(ifr.ifr_name, bridge, IFNAMSIZ - 1);
1230 ifr.ifr_ifindex = index;
1232 if (ioctl(sk, SIOCBRADDIF, &ifr) < 0)
1239 connman_error("Add interface to bridge error %s",
1245 int connman_inet_set_mtu(int index, int mtu)
1250 sk = socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1254 memset(&ifr, 0, sizeof(ifr));
1255 ifr.ifr_ifindex = index;
1257 err = ioctl(sk, SIOCGIFNAME, &ifr);
1260 err = ioctl(sk, SIOCSIFMTU, &ifr);
1267 int connman_inet_setup_tunnel(char *tunnel, int mtu)
1277 sk = socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1281 index = if_nametoindex(tunnel);
1283 err = connman_inet_set_mtu(index, mtu);
1287 memset(&ifr, 0, sizeof(ifr));
1288 strncpy(ifr.ifr_name, tunnel, IFNAMSIZ);
1289 err = ioctl(sk, SIOCGIFFLAGS, &ifr);
1296 if ((ifr.ifr_flags ^ flags) & mask) {
1297 ifr.ifr_flags &= ~mask;
1298 ifr.ifr_flags |= mask & flags;
1299 err = ioctl(sk, SIOCSIFFLAGS, &ifr);
1301 connman_error("SIOCSIFFLAGS failed: %s",
1310 int connman_inet_create_tunnel(char **iface)
1315 fd = open("/dev/net/tun", O_RDWR | O_CLOEXEC);
1318 connman_error("Failed to open /dev/net/tun: %s",
1323 memset(&ifr, 0, sizeof(ifr));
1324 ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
1326 for (i = 0; i < 256; i++) {
1327 sprintf(ifr.ifr_name, "tun%d", i);
1329 if (!ioctl(fd, TUNSETIFF, (void *)&ifr))
1334 connman_error("Failed to find available tun device");
1339 *iface = g_strdup(ifr.ifr_name);
1345 GIOChannel *channel;
1346 __connman_inet_rs_cb_t callback;
1347 struct sockaddr_in6 addr;
1353 #define CMSG_BUF_LEN 512
1354 #define IN6ADDR_ALL_NODES_MC_INIT \
1355 { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x1 } } } /* ff02::1 */
1356 #define IN6ADDR_ALL_ROUTERS_MC_INIT \
1357 { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x2 } } } /* ff02::2 */
1359 static const struct in6_addr in6addr_all_nodes_mc = IN6ADDR_ALL_NODES_MC_INIT;
1360 static const struct in6_addr in6addr_all_routers_mc =
1361 IN6ADDR_ALL_ROUTERS_MC_INIT;
1363 static void rs_cleanup(struct rs_cb_data *data)
1365 if (data->channel != NULL) {
1366 g_io_channel_shutdown(data->channel, TRUE, NULL);
1367 g_io_channel_unref(data->channel);
1368 data->channel = NULL;
1371 if (data->rs_timeout > 0)
1372 g_source_remove(data->rs_timeout);
1374 if (data->watch_id > 0)
1375 g_source_remove(data->watch_id);
1380 static gboolean rs_timeout_cb(gpointer user_data)
1382 struct rs_cb_data *data = user_data;
1384 DBG("user data %p", user_data);
1389 if (data->callback != NULL)
1390 data->callback(NULL, 0, data->user_data);
1392 data->rs_timeout = 0;
1397 static int icmpv6_recv(int fd, gpointer user_data)
1401 unsigned char chdr[CMSG_BUF_LEN];
1402 unsigned char buf[1540];
1403 struct rs_cb_data *data = user_data;
1404 struct nd_router_advert *hdr;
1405 struct sockaddr_in6 saddr;
1410 iov.iov_len = sizeof(buf);
1413 mhdr.msg_name = (void *)&saddr;
1414 mhdr.msg_namelen = sizeof(struct sockaddr_in6);
1415 mhdr.msg_iov = &iov;
1416 mhdr.msg_iovlen = 1;
1417 mhdr.msg_control = (void *)chdr;
1418 mhdr.msg_controllen = CMSG_BUF_LEN;
1420 len = recvmsg(fd, &mhdr, 0);
1422 data->callback(NULL, 0, data->user_data);
1427 hdr = (struct nd_router_advert *)buf;
1428 DBG("code %d len %zd hdr %zd", hdr->nd_ra_code, len,
1429 sizeof(struct nd_router_advert));
1430 if (hdr->nd_ra_code != 0)
1433 data->callback(hdr, len, data->user_data);
1439 static gboolean icmpv6_event(GIOChannel *chan, GIOCondition cond,
1446 if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
1449 fd = g_io_channel_unix_get_fd(chan);
1450 ret = icmpv6_recv(fd, data);
1457 /* Adapted from RFC 1071 "C" Implementation Example */
1458 static uint16_t csum(const void *phdr, const void *data, socklen_t datalen)
1460 register unsigned long sum = 0;
1465 /* caller must make sure datalen is even */
1467 addr = (uint16_t *)phdr;
1468 for (i = 0; i < 20; i++)
1472 addr = (uint16_t *)data;
1480 sum = (sum & 0xffff) + (sum >> 16);
1482 return (uint16_t)~sum;
1485 static int ndisc_send_unspec(int type, int oif, const struct in6_addr *dest)
1488 struct in6_addr src;
1489 struct in6_addr dst;
1491 uint8_t reserved[3];
1498 struct icmp6_hdr icmp;
1499 struct nd_neighbor_solicit ns;
1500 struct nd_router_solicit rs;
1505 struct cmsghdr *cmsg;
1506 struct in6_pktinfo *pinfo;
1507 struct sockaddr_in6 dst;
1508 char cbuf[CMSG_SPACE(sizeof(*pinfo))];
1510 int fd, datalen, ret;
1514 fd = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC, IPPROTO_RAW);
1518 memset(&frame, 0, sizeof(frame));
1519 memset(&dst, 0, sizeof(dst));
1521 datalen = sizeof(frame.i.rs); /* 8, csum() safe */
1522 dst.sin6_addr = *dest;
1524 /* Fill in the IPv6 header */
1525 frame.ip.ip6_vfc = 0x60;
1526 frame.ip.ip6_plen = htons(datalen);
1527 frame.ip.ip6_nxt = IPPROTO_ICMPV6;
1528 frame.ip.ip6_hlim = 255;
1529 frame.ip.ip6_dst = dst.sin6_addr;
1530 /* all other fields are already set to zero */
1532 /* Prepare pseudo header for csum */
1533 memset(&phdr, 0, sizeof(phdr));
1534 phdr.dst = dst.sin6_addr;
1535 phdr.plen = htonl(datalen);
1536 phdr.nxt = IPPROTO_ICMPV6;
1538 /* Fill in remaining ICMP header fields */
1539 frame.i.icmp.icmp6_type = type;
1540 frame.i.icmp.icmp6_cksum = csum(&phdr, &frame.i, datalen);
1542 iov.iov_base = &frame;
1543 iov.iov_len = sizeof(frame.ip) + datalen;
1545 dst.sin6_family = AF_INET6;
1546 msgh.msg_name = &dst;
1547 msgh.msg_namelen = sizeof(dst);
1548 msgh.msg_iov = &iov;
1549 msgh.msg_iovlen = 1;
1552 memset(cbuf, 0, CMSG_SPACE(sizeof(*pinfo)));
1553 cmsg = (struct cmsghdr *)cbuf;
1554 pinfo = (struct in6_pktinfo *)CMSG_DATA(cmsg);
1555 pinfo->ipi6_ifindex = oif;
1557 cmsg->cmsg_len = CMSG_LEN(sizeof(*pinfo));
1558 cmsg->cmsg_level = IPPROTO_IPV6;
1559 cmsg->cmsg_type = IPV6_PKTINFO;
1560 msgh.msg_control = cmsg;
1561 msgh.msg_controllen = cmsg->cmsg_len;
1563 ret = sendmsg(fd, &msgh, 0);
1569 static inline void ipv6_addr_set(struct in6_addr *addr,
1570 uint32_t w1, uint32_t w2,
1571 uint32_t w3, uint32_t w4)
1573 addr->s6_addr32[0] = w1;
1574 addr->s6_addr32[1] = w2;
1575 addr->s6_addr32[2] = w3;
1576 addr->s6_addr32[3] = w4;
1579 static inline void ipv6_addr_solict_mult(const struct in6_addr *addr,
1580 struct in6_addr *solicited)
1582 ipv6_addr_set(solicited, htonl(0xFF020000), 0, htonl(0x1),
1583 htonl(0xFF000000) | addr->s6_addr32[3]);
1586 static int if_mc_group(int sock, int ifindex, const struct in6_addr *mc_addr,
1589 unsigned int val = 0;
1590 struct ipv6_mreq mreq;
1593 memset(&mreq, 0, sizeof(mreq));
1594 mreq.ipv6mr_interface = ifindex;
1595 mreq.ipv6mr_multiaddr = *mc_addr;
1597 ret = setsockopt(sock, IPPROTO_IPV6, IPV6_MULTICAST_LOOP,
1603 return setsockopt(sock, IPPROTO_IPV6, cmd, &mreq, sizeof(mreq));
1606 int __connman_inet_ipv6_send_rs(int index, int timeout,
1607 __connman_inet_rs_cb_t callback, void *user_data)
1609 struct rs_cb_data *data;
1610 struct icmp6_filter filter;
1611 struct in6_addr solicit;
1612 struct in6_addr dst = in6addr_all_routers_mc;
1620 data = g_try_malloc0(sizeof(struct rs_cb_data));
1624 data->callback = callback;
1625 data->user_data = user_data;
1626 data->rs_timeout = g_timeout_add_seconds(timeout, rs_timeout_cb, data);
1628 sk = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC, IPPROTO_ICMPV6);
1632 ICMP6_FILTER_SETBLOCKALL(&filter);
1633 ICMP6_FILTER_SETPASS(ND_ROUTER_ADVERT, &filter);
1635 setsockopt(sk, IPPROTO_ICMPV6, ICMP6_FILTER, &filter,
1636 sizeof(struct icmp6_filter));
1638 ipv6_addr_solict_mult(&dst, &solicit);
1639 if_mc_group(sk, index, &in6addr_all_nodes_mc, IPV6_JOIN_GROUP);
1640 if_mc_group(sk, index, &solicit, IPV6_JOIN_GROUP);
1642 data->channel = g_io_channel_unix_new(sk);
1643 g_io_channel_set_close_on_unref(data->channel, TRUE);
1645 g_io_channel_set_encoding(data->channel, NULL, NULL);
1646 g_io_channel_set_buffered(data->channel, FALSE);
1648 data->watch_id = g_io_add_watch(data->channel,
1649 G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
1650 icmpv6_event, data);
1652 ndisc_send_unspec(ND_ROUTER_SOLICIT, index, &dst);
1657 GSList *__connman_inet_ipv6_get_prefixes(struct nd_router_advert *hdr,
1658 unsigned int length)
1660 GSList *prefixes = NULL;
1664 if (length <= sizeof(struct nd_router_advert))
1667 len = length - sizeof(struct nd_router_advert);
1668 pos = (uint8_t *)hdr + sizeof(struct nd_router_advert);
1671 struct nd_opt_prefix_info *pinfo;
1672 char prefix_str[INET6_ADDRSTRLEN+1], *str;
1679 optlen = pos[1] << 3;
1680 if (optlen == 0 || optlen > len)
1684 case ND_OPT_PREFIX_INFORMATION:
1685 pinfo = (struct nd_opt_prefix_info *)pos;
1686 prefix = inet_ntop(AF_INET6, &pinfo->nd_opt_pi_prefix,
1687 prefix_str, INET6_ADDRSTRLEN);
1691 str = g_strdup_printf("%s/%d", prefix,
1692 pinfo->nd_opt_pi_prefix_len);
1693 prefixes = g_slist_prepend(prefixes, str);
1695 DBG("prefix %s", str);
1707 static int get_dest_addr(int family, int index, char *buf, int len)
1713 sk = socket(family, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1717 memset(&ifr, 0, sizeof(ifr));
1718 ifr.ifr_ifindex = index;
1720 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
1721 DBG("SIOCGIFNAME (%d/%s)", errno, strerror(errno));
1726 if (ioctl(sk, SIOCGIFFLAGS, &ifr) < 0) {
1727 DBG("SIOCGIFFLAGS (%d/%s)", errno, strerror(errno));
1732 if ((ifr.ifr_flags & IFF_POINTOPOINT) == 0) {
1738 DBG("index %d %s", index, ifr.ifr_name);
1740 if (ioctl(sk, SIOCGIFDSTADDR, &ifr) < 0) {
1741 connman_error("Get destination address failed (%s)",
1751 addr = &((struct sockaddr_in *)&ifr.ifr_dstaddr)->sin_addr;
1754 addr = &((struct sockaddr_in6 *)&ifr.ifr_dstaddr)->sin6_addr;
1761 if (inet_ntop(family, addr, buf, len) == NULL) {
1762 DBG("error %d/%s", errno, strerror(errno));
1769 int connman_inet_get_dest_addr(int index, char **dest)
1771 char addr[INET_ADDRSTRLEN];
1774 ret = get_dest_addr(PF_INET, index, addr, INET_ADDRSTRLEN);
1778 *dest = g_strdup(addr);
1780 DBG("destination %s", *dest);
1785 int connman_inet_ipv6_get_dest_addr(int index, char **dest)
1787 char addr[INET6_ADDRSTRLEN];
1790 ret = get_dest_addr(PF_INET6, index, addr, INET6_ADDRSTRLEN);
1794 *dest = g_strdup(addr);
1796 DBG("destination %s", *dest);
1801 int __connman_inet_rtnl_open(struct __connman_inet_rtnl_handle *rth)
1804 int rcvbuf = 1024 * 4;
1806 rth->fd = socket(AF_NETLINK, SOCK_RAW | SOCK_CLOEXEC, NETLINK_ROUTE);
1808 connman_error("Can not open netlink socket: %s",
1813 if (setsockopt(rth->fd, SOL_SOCKET, SO_SNDBUF, &sndbuf,
1814 sizeof(sndbuf)) < 0) {
1815 connman_error("SO_SNDBUF: %s", strerror(errno));
1819 if (setsockopt(rth->fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf,
1820 sizeof(rcvbuf)) < 0) {
1821 connman_error("SO_RCVBUF: %s", strerror(errno));
1825 memset(&rth->local, 0, sizeof(rth->local));
1826 rth->local.nl_family = AF_NETLINK;
1827 rth->local.nl_groups = 0;
1829 if (bind(rth->fd, (struct sockaddr *)&rth->local,
1830 sizeof(rth->local)) < 0) {
1831 connman_error("Can not bind netlink socket: %s",
1836 rth->seq = time(NULL);
1838 DBG("fd %d", rth->fd);
1843 struct inet_rtnl_cb_data {
1844 GIOChannel *channel;
1845 __connman_inet_rtnl_cb_t callback;
1848 struct __connman_inet_rtnl_handle *rtnl;
1852 static void inet_rtnl_cleanup(struct inet_rtnl_cb_data *data)
1854 struct __connman_inet_rtnl_handle *rth = data->rtnl;
1856 if (data->channel != NULL) {
1857 g_io_channel_shutdown(data->channel, TRUE, NULL);
1858 g_io_channel_unref(data->channel);
1859 data->channel = NULL;
1862 DBG("data %p", data);
1864 if (data->rtnl_timeout > 0)
1865 g_source_remove(data->rtnl_timeout);
1867 if (data->watch_id > 0)
1868 g_source_remove(data->watch_id);
1871 __connman_inet_rtnl_close(rth);
1878 static gboolean inet_rtnl_timeout_cb(gpointer user_data)
1880 struct inet_rtnl_cb_data *data = user_data;
1882 DBG("user data %p", user_data);
1887 if (data->callback != NULL)
1888 data->callback(NULL, data->user_data);
1890 data->rtnl_timeout = 0;
1891 inet_rtnl_cleanup(data);
1895 static int inet_rtnl_recv(GIOChannel *chan, gpointer user_data)
1897 struct inet_rtnl_cb_data *rtnl_data = user_data;
1898 struct __connman_inet_rtnl_handle *rth = rtnl_data->rtnl;
1899 struct nlmsghdr *h = NULL;
1900 struct sockaddr_nl nladdr;
1901 socklen_t addr_len = sizeof(nladdr);
1902 unsigned char buf[4096];
1907 memset(buf, 0, sizeof(buf));
1908 memset(&nladdr, 0, sizeof(nladdr));
1910 fd = g_io_channel_unix_get_fd(chan);
1912 status = recvfrom(fd, buf, sizeof(buf), 0,
1913 (struct sockaddr *) &nladdr, &addr_len);
1915 if (errno == EINTR || errno == EAGAIN)
1924 if (nladdr.nl_pid != 0) { /* not sent by kernel, ignore */
1925 DBG("Received msg from %u, ignoring it", nladdr.nl_pid);
1932 struct nlmsgerr *err;
1936 if (!NLMSG_OK(h, len)) {
1941 if (h->nlmsg_seq != rth->seq) {
1943 DBG("skip %d/%d len %d", rth->seq,
1944 h->nlmsg_seq, h->nlmsg_len);
1946 len -= h->nlmsg_len;
1947 ptr += h->nlmsg_len;
1951 switch (h->nlmsg_type) {
1957 err = (struct nlmsgerr *)NLMSG_DATA(h);
1958 connman_error("RTNETLINK answers %s (%d)",
1959 strerror(-err->error), -err->error);
1966 if (h->nlmsg_seq == rth->seq) {
1967 DBG("received %d seq %d", h->nlmsg_len, h->nlmsg_seq);
1969 rtnl_data->callback(h, rtnl_data->user_data);
1971 inet_rtnl_cleanup(rtnl_data);
1977 static gboolean inet_rtnl_event(GIOChannel *chan, GIOCondition cond,
1984 if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
1987 ret = inet_rtnl_recv(chan, user_data);
1994 int __connman_inet_rtnl_talk(struct __connman_inet_rtnl_handle *rtnl,
1995 struct nlmsghdr *n, int timeout,
1996 __connman_inet_rtnl_cb_t callback, void *user_data)
1998 struct sockaddr_nl nladdr;
1999 struct inet_rtnl_cb_data *data;
2003 memset(&nladdr, 0, sizeof(nladdr));
2004 nladdr.nl_family = AF_NETLINK;
2006 n->nlmsg_seq = seq = ++rtnl->seq;
2008 if (callback != NULL) {
2009 data = g_try_malloc0(sizeof(struct inet_rtnl_cb_data));
2013 data->callback = callback;
2014 data->user_data = user_data;
2016 data->rtnl_timeout = g_timeout_add_seconds(timeout,
2017 inet_rtnl_timeout_cb, data);
2019 data->channel = g_io_channel_unix_new(rtnl->fd);
2020 g_io_channel_set_close_on_unref(data->channel, TRUE);
2022 g_io_channel_set_encoding(data->channel, NULL, NULL);
2023 g_io_channel_set_buffered(data->channel, FALSE);
2025 data->watch_id = g_io_add_watch(data->channel,
2026 G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
2027 inet_rtnl_event, data);
2029 n->nlmsg_flags |= NLM_F_ACK;
2031 err = sendto(rtnl->fd, &rtnl->req.n, rtnl->req.n.nlmsg_len, 0,
2032 (struct sockaddr *) &nladdr, sizeof(nladdr));
2033 DBG("handle %p len %d err %d", rtnl, rtnl->req.n.nlmsg_len, err);
2035 connman_error("Can not talk to rtnetlink");
2039 if ((unsigned int)err != rtnl->req.n.nlmsg_len) {
2040 connman_error("Sent %d bytes, msg truncated", err);
2047 void __connman_inet_rtnl_close(struct __connman_inet_rtnl_handle *rth)
2049 DBG("handle %p", rth);
2057 int __connman_inet_rtnl_addattr32(struct nlmsghdr *n, size_t maxlen, int type,
2060 int len = RTA_LENGTH(4);
2063 if (NLMSG_ALIGN(n->nlmsg_len) + len > maxlen) {
2064 DBG("Error! max allowed bound %zd exceeded", maxlen);
2067 rta = NLMSG_TAIL(n);
2068 rta->rta_type = type;
2070 memcpy(RTA_DATA(rta), &data, 4);
2071 n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + len;
2076 static int parse_rtattr(struct rtattr *tb[], int max,
2077 struct rtattr *rta, int len)
2079 memset(tb, 0, sizeof(struct rtattr *) * (max + 1));
2080 while (RTA_OK(rta, len)) {
2081 if ((rta->rta_type <= max) && (!tb[rta->rta_type]))
2082 tb[rta->rta_type] = rta;
2083 rta = RTA_NEXT(rta, len);
2086 connman_error("Deficit %d, rta_len=%d", len, rta->rta_len);
2091 struct get_route_cb_data {
2092 connman_inet_addr_cb_t callback;
2096 static void get_route_cb(struct nlmsghdr *answer, void *user_data)
2098 struct get_route_cb_data *data = user_data;
2099 struct rtattr *tb[RTA_MAX+1];
2100 struct rtmsg *r = NLMSG_DATA(answer);
2101 int len, index = -1;
2103 const char *addr = NULL;
2105 DBG("answer %p data %p", answer, user_data);
2110 len = answer->nlmsg_len;
2112 if (answer->nlmsg_type != RTM_NEWROUTE &&
2113 answer->nlmsg_type != RTM_DELROUTE) {
2114 connman_error("Not a route: %08x %08x %08x",
2115 answer->nlmsg_len, answer->nlmsg_type,
2116 answer->nlmsg_flags);
2120 len -= NLMSG_LENGTH(sizeof(*r));
2122 connman_error("BUG: wrong nlmsg len %d", len);
2126 parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
2128 if (tb[RTA_OIF] != NULL)
2129 index = *(int *)RTA_DATA(tb[RTA_OIF]);
2131 if (tb[RTA_GATEWAY] != NULL)
2132 addr = inet_ntop(r->rtm_family,
2133 RTA_DATA(tb[RTA_GATEWAY]),
2134 abuf, sizeof(abuf));
2136 DBG("addr %s index %d user %p", addr, index, data->user_data);
2139 if (data != NULL && data->callback != NULL)
2140 data->callback(addr, index, data->user_data);
2148 * Return the interface index that contains route to host.
2150 int __connman_inet_get_route(const char *dest_address,
2151 connman_inet_addr_cb_t callback, void *user_data)
2153 struct get_route_cb_data *data;
2154 struct addrinfo hints, *rp;
2155 struct __connman_inet_rtnl_handle *rth;
2158 DBG("dest %s", dest_address);
2160 if (dest_address == NULL)
2163 memset(&hints, 0, sizeof(hints));
2164 hints.ai_family = AF_UNSPEC;
2165 hints.ai_flags = AI_PASSIVE | AI_NUMERICSERV | AI_NUMERICHOST;
2167 err = getaddrinfo(dest_address, NULL, &hints, &rp);
2171 rth = g_try_malloc0(sizeof(struct __connman_inet_rtnl_handle));
2177 rth->req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
2178 rth->req.n.nlmsg_flags = NLM_F_REQUEST;
2179 rth->req.n.nlmsg_type = RTM_GETROUTE;
2180 rth->req.u.r.rt.rtm_family = rp->ai_family;
2181 rth->req.u.r.rt.rtm_table = 0;
2182 rth->req.u.r.rt.rtm_protocol = 0;
2183 rth->req.u.r.rt.rtm_scope = 0;
2184 rth->req.u.r.rt.rtm_type = 0;
2185 rth->req.u.r.rt.rtm_src_len = 0;
2186 rth->req.u.r.rt.rtm_dst_len = rp->ai_addrlen << 3;
2187 rth->req.u.r.rt.rtm_tos = 0;
2189 __connman_inet_rtnl_addattr_l(&rth->req.n, sizeof(rth->req), RTA_DST,
2190 &rp->ai_addr, rp->ai_addrlen);
2194 err = __connman_inet_rtnl_open(rth);
2198 data = g_try_malloc(sizeof(struct get_route_cb_data));
2204 data->callback = callback;
2205 data->user_data = user_data;
2207 #define GET_ROUTE_TIMEOUT 2
2208 err = __connman_inet_rtnl_talk(rth, &rth->req.n, GET_ROUTE_TIMEOUT,
2209 get_route_cb, data);
2218 __connman_inet_rtnl_close(rth);
2225 int connman_inet_check_ipaddress(const char *host)
2227 struct addrinfo hints;
2228 struct addrinfo *addr;
2231 memset(&hints, 0, sizeof(struct addrinfo));
2232 hints.ai_flags = AI_NUMERICHOST;
2235 result = getaddrinfo(host, NULL, &hints, &addr);
2237 result = addr->ai_family;
2243 /* Check routine modified from ics-dhcp 4.2.3-P2 */
2244 connman_bool_t connman_inet_check_hostname(const char *ptr, size_t len)
2249 * Not empty or complete length not over 255 characters.
2251 if ((len == 0) || (len > 256))
2255 * Consists of [[:alnum:]-]+ labels separated by [.]
2256 * a [_] is against RFC but seems to be "widely used"
2258 for (p = ptr; (*p != 0) && (len-- > 0); p++) {
2260 if ((*p == '-') || (*p == '_')) {
2262 * Not allowed at begin or end of a label.
2264 if (((p - ptr) == 0) || (len == 0) || (p[1] == '.'))
2267 } else if (*p == '.') {
2269 * Each label has to be 1-63 characters;
2270 * we allow [.] at the end ('foo.bar.')
2274 if ((d <= 0) || (d >= 64))
2277 ptr = p + 1; /* Jump to the next label */
2279 } else if (isalnum((unsigned char)*p) == 0) {
2281 * Also numbers at the begin are fine
2290 char **__connman_inet_get_running_interfaces(void)
2294 struct ifreq *ifr = NULL;
2295 int sk, i, numif, count = 0;
2297 memset(&ifc, 0, sizeof(ifc));
2299 sk = socket(AF_INET, SOCK_DGRAM, 0);
2303 if (ioctl(sk, SIOCGIFCONF, &ifc) < 0)
2307 * Allocate some extra bytes just in case there will
2308 * be new interfaces added between two SIOCGIFCONF
2311 ifr = g_try_malloc0(ifc.ifc_len * 2);
2317 if (ioctl(sk, SIOCGIFCONF, &ifc) < 0)
2320 numif = ifc.ifc_len / sizeof(struct ifreq);
2322 result = g_try_malloc0((numif + 1) * sizeof(char *));
2328 for (i = 0; i < numif; i++) {
2329 struct ifreq *r = &ifr[i];
2330 struct in6_addr *addr6;
2334 * Note that we do not return loopback interfaces here as they
2335 * are not needed for our purposes.
2337 switch (r->ifr_addr.sa_family) {
2339 addr4 = ntohl(((struct sockaddr_in *)
2340 &r->ifr_addr)->sin_addr.s_addr);
2341 if (((addr4 & 0xff000000) >> 24) == 127)
2345 addr6 = &((struct sockaddr_in6 *)
2346 &r->ifr_addr)->sin6_addr;
2347 if (IN6_IS_ADDR_LINKLOCAL(addr6))
2352 result[count++] = g_strdup(r->ifr_name);
2358 result = g_try_realloc(result, (count + 1) * sizeof(char *));
2368 connman_bool_t connman_inet_is_ipv6_supported()
2372 sk = socket(PF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);