5 * Copyright (C) 2007-2013 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>
49 #include <linux/fib_rules.h>
52 #include <gdhcp/gdhcp.h>
54 #define NLMSG_TAIL(nmsg) \
55 ((struct rtattr *) (((uint8_t*) (nmsg)) + \
56 NLMSG_ALIGN((nmsg)->nlmsg_len)))
58 int __connman_inet_rtnl_addattr_l(struct nlmsghdr *n, size_t max_length,
59 int type, const void *data, size_t data_length)
64 length = RTA_LENGTH(data_length);
66 if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(length) > max_length)
71 rta->rta_len = length;
72 memcpy(RTA_DATA(rta), data, data_length);
73 n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(length);
78 int __connman_inet_modify_address(int cmd, int flags,
79 int index, int family,
82 unsigned char prefixlen,
83 const char *broadcast)
85 uint8_t request[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
86 NLMSG_ALIGN(sizeof(struct ifaddrmsg)) +
87 RTA_LENGTH(sizeof(struct in6_addr)) +
88 RTA_LENGTH(sizeof(struct in6_addr))];
90 struct nlmsghdr *header;
91 struct sockaddr_nl nl_addr;
92 struct ifaddrmsg *ifaddrmsg;
93 struct in6_addr ipv6_addr;
94 struct in_addr ipv4_addr, ipv4_dest, ipv4_bcast;
97 DBG("cmd %#x flags %#x index %d family %d address %s peer %s "
98 "prefixlen %hhu broadcast %s", cmd, flags, index, family,
99 address, peer, prefixlen, broadcast);
104 if (family != AF_INET && family != AF_INET6)
107 memset(&request, 0, sizeof(request));
109 header = (struct nlmsghdr *)request;
110 header->nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg));
111 header->nlmsg_type = cmd;
112 header->nlmsg_flags = NLM_F_REQUEST | flags;
113 header->nlmsg_seq = 1;
115 ifaddrmsg = NLMSG_DATA(header);
116 ifaddrmsg->ifa_family = family;
117 ifaddrmsg->ifa_prefixlen = prefixlen;
118 ifaddrmsg->ifa_flags = IFA_F_PERMANENT;
119 ifaddrmsg->ifa_scope = RT_SCOPE_UNIVERSE;
120 ifaddrmsg->ifa_index = index;
122 if (family == AF_INET) {
123 if (inet_pton(AF_INET, address, &ipv4_addr) < 1)
127 inet_pton(AF_INET, broadcast, &ipv4_bcast);
129 ipv4_bcast.s_addr = ipv4_addr.s_addr |
130 htonl(0xfffffffflu >> prefixlen);
133 if (inet_pton(AF_INET, peer, &ipv4_dest) < 1)
136 err = __connman_inet_rtnl_addattr_l(header,
145 err = __connman_inet_rtnl_addattr_l(header,
153 err = __connman_inet_rtnl_addattr_l(header,
161 } else if (family == AF_INET6) {
162 if (inet_pton(AF_INET6, address, &ipv6_addr) < 1)
165 err = __connman_inet_rtnl_addattr_l(header,
174 sk = socket(AF_NETLINK, SOCK_DGRAM | SOCK_CLOEXEC, NETLINK_ROUTE);
178 memset(&nl_addr, 0, sizeof(nl_addr));
179 nl_addr.nl_family = AF_NETLINK;
181 if ((err = sendto(sk, request, header->nlmsg_len, 0,
182 (struct sockaddr *) &nl_addr, sizeof(nl_addr))) < 0)
193 int connman_inet_ifindex(const char *name)
201 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
205 memset(&ifr, 0, sizeof(ifr));
206 strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name) - 1);
208 err = ioctl(sk, SIOCGIFINDEX, &ifr);
215 return ifr.ifr_ifindex;
218 char *connman_inet_ifname(int index)
226 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
230 memset(&ifr, 0, sizeof(ifr));
231 ifr.ifr_ifindex = index;
233 err = ioctl(sk, SIOCGIFNAME, &ifr);
240 return g_strdup(ifr.ifr_name);
243 int connman_inet_ifup(int index)
248 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
252 memset(&ifr, 0, sizeof(ifr));
253 ifr.ifr_ifindex = index;
255 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
260 if (ioctl(sk, SIOCGIFFLAGS, &ifr) < 0) {
265 if (ifr.ifr_flags & IFF_UP) {
270 ifr.ifr_flags |= (IFF_UP|IFF_DYNAMIC);
272 if (ioctl(sk, SIOCSIFFLAGS, &ifr) < 0) {
285 int connman_inet_ifdown(int index)
287 struct ifreq ifr, addr_ifr;
288 struct sockaddr_in *addr;
291 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
295 memset(&ifr, 0, sizeof(ifr));
296 ifr.ifr_ifindex = index;
298 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
303 if (ioctl(sk, SIOCGIFFLAGS, &ifr) < 0) {
308 memset(&addr_ifr, 0, sizeof(addr_ifr));
309 memcpy(&addr_ifr.ifr_name, &ifr.ifr_name, sizeof(ifr.ifr_name) - 1);
310 addr = (struct sockaddr_in *)&addr_ifr.ifr_addr;
311 addr->sin_family = AF_INET;
312 if (ioctl(sk, SIOCSIFADDR, &addr_ifr) < 0)
313 connman_warn("Could not clear IPv4 address index %d", index);
315 if (!(ifr.ifr_flags & IFF_UP)) {
320 ifr.ifr_flags = (ifr.ifr_flags & ~IFF_UP) | IFF_DYNAMIC;
322 if (ioctl(sk, SIOCSIFFLAGS, &ifr) < 0)
333 #if defined TIZEN_EXT
334 void connman_inet_update_device_ident(struct connman_device *device)
337 enum connman_device_type type;
338 char *ident = NULL, *addr = NULL;
340 index = connman_device_get_index(device);
341 type = connman_device_get_type(device);
344 case CONNMAN_DEVICE_TYPE_UNKNOWN:
346 case CONNMAN_DEVICE_TYPE_ETHERNET:
347 case CONNMAN_DEVICE_TYPE_GADGET:
348 case CONNMAN_DEVICE_TYPE_WIFI:
349 addr = index2addr(index);
351 case CONNMAN_DEVICE_TYPE_BLUETOOTH:
352 case CONNMAN_DEVICE_TYPE_CELLULAR:
353 case CONNMAN_DEVICE_TYPE_GPS:
354 case CONNMAN_DEVICE_TYPE_VENDOR:
359 case CONNMAN_DEVICE_TYPE_VENDOR:
360 case CONNMAN_DEVICE_TYPE_GPS:
362 case CONNMAN_DEVICE_TYPE_ETHERNET:
363 case CONNMAN_DEVICE_TYPE_GADGET:
364 ident = index2ident(index, NULL);
366 case CONNMAN_DEVICE_TYPE_WIFI:
367 ident = index2ident(index, NULL);
369 case CONNMAN_DEVICE_TYPE_BLUETOOTH:
371 case CONNMAN_DEVICE_TYPE_CELLULAR:
372 ident = index2ident(index, NULL);
377 connman_device_set_ident(device, ident);
382 connman_device_set_string(device, "Address", addr);
389 struct in6_addr ifr6_addr;
390 __u32 ifr6_prefixlen;
391 unsigned int ifr6_ifindex;
394 int connman_inet_set_ipv6_address(int index,
395 struct connman_ipaddress *ipaddress)
398 unsigned char prefix_len;
401 if (!ipaddress->local)
404 prefix_len = ipaddress->prefixlen;
405 address = ipaddress->local;
407 DBG("index %d address %s prefix_len %d", index, address, prefix_len);
409 err = __connman_inet_modify_address(RTM_NEWADDR,
410 NLM_F_REPLACE | NLM_F_ACK, index, AF_INET6,
411 address, NULL, prefix_len, NULL);
413 connman_error("%s: %s", __func__, strerror(-err));
420 int connman_inet_set_address(int index, struct connman_ipaddress *ipaddress)
423 unsigned char prefix_len;
424 const char *address, *broadcast, *peer;
426 if (!ipaddress->local)
429 prefix_len = ipaddress->prefixlen;
430 address = ipaddress->local;
431 broadcast = ipaddress->broadcast;
432 peer = ipaddress->peer;
434 DBG("index %d address %s prefix_len %d", index, address, prefix_len);
436 err = __connman_inet_modify_address(RTM_NEWADDR,
437 NLM_F_REPLACE | NLM_F_ACK, index, AF_INET,
438 address, peer, prefix_len, broadcast);
440 connman_error("%s: %s", __func__, strerror(-err));
447 int connman_inet_clear_ipv6_address(int index, const char *address,
452 DBG("index %d address %s prefix_len %d", index, address, prefix_len);
457 err = __connman_inet_modify_address(RTM_DELADDR, 0, index, AF_INET6,
458 address, NULL, prefix_len, NULL);
460 connman_error("%s: %s", __func__, strerror(-err));
467 int connman_inet_clear_address(int index, struct connman_ipaddress *ipaddress)
470 unsigned char prefix_len;
471 const char *address, *broadcast, *peer;
473 prefix_len = ipaddress->prefixlen;
474 address = ipaddress->local;
475 broadcast = ipaddress->broadcast;
476 peer = ipaddress->peer;
478 DBG("index %d address %s prefix_len %d peer %s broadcast %s", index,
479 address, prefix_len, peer, broadcast);
484 err = __connman_inet_modify_address(RTM_DELADDR, 0, index, AF_INET,
485 address, peer, prefix_len, broadcast);
487 connman_error("%s: %s", __func__, strerror(-err));
494 int connman_inet_add_host_route(int index, const char *host,
497 return connman_inet_add_network_route(index, host, gateway, NULL);
500 int connman_inet_del_host_route(int index, const char *host)
502 return connman_inet_del_network_route(index, host);
505 int connman_inet_add_network_route(int index, const char *host,
511 struct sockaddr_in addr;
514 DBG("index %d host %s gateway %s netmask %s", index,
515 host, gateway, netmask);
517 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
523 memset(&ifr, 0, sizeof(ifr));
524 ifr.ifr_ifindex = index;
526 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
532 DBG("ifname %s", ifr.ifr_name);
534 memset(&rt, 0, sizeof(rt));
535 rt.rt_flags = RTF_UP;
537 rt.rt_flags |= RTF_GATEWAY;
539 rt.rt_flags |= RTF_HOST;
541 memset(&addr, 0, sizeof(addr));
542 addr.sin_family = AF_INET;
543 addr.sin_addr.s_addr = inet_addr(host);
544 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
546 memset(&addr, 0, sizeof(addr));
547 addr.sin_family = AF_INET;
549 addr.sin_addr.s_addr = inet_addr(gateway);
551 addr.sin_addr.s_addr = INADDR_ANY;
552 memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
554 memset(&addr, 0, sizeof(addr));
555 addr.sin_family = AF_INET;
556 addr.sin_addr.s_addr = INADDR_ANY;
558 addr.sin_addr.s_addr = inet_addr(netmask);
560 addr.sin_addr.s_addr = INADDR_ANY;
561 memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
563 rt.rt_dev = ifr.ifr_name;
565 if (ioctl(sk, SIOCADDRT, &rt) < 0 && errno != EEXIST)
572 connman_error("Adding host route failed (%s)",
578 int connman_inet_del_network_route(int index, const char *host)
582 struct sockaddr_in addr;
585 DBG("index %d host %s", index, host);
587 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
593 memset(&ifr, 0, sizeof(ifr));
594 ifr.ifr_ifindex = index;
596 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
602 DBG("ifname %s", ifr.ifr_name);
604 memset(&rt, 0, sizeof(rt));
605 rt.rt_flags = RTF_UP | RTF_HOST;
607 memset(&addr, 0, sizeof(addr));
608 addr.sin_family = AF_INET;
609 addr.sin_addr.s_addr = inet_addr(host);
610 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
612 rt.rt_dev = ifr.ifr_name;
614 if (ioctl(sk, SIOCDELRT, &rt) < 0 && errno != ESRCH)
621 connman_error("Deleting host route failed (%s)",
627 int connman_inet_del_ipv6_network_route(int index, const char *host,
628 unsigned char prefix_len)
633 DBG("index %d host %s", index, host);
638 memset(&rt, 0, sizeof(rt));
640 rt.rtmsg_dst_len = prefix_len;
642 if (inet_pton(AF_INET6, host, &rt.rtmsg_dst) < 0) {
647 rt.rtmsg_flags = RTF_UP | RTF_HOST;
650 rt.rtmsg_ifindex = index;
652 sk = socket(AF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
658 if (ioctl(sk, SIOCDELRT, &rt) < 0 && errno != ESRCH)
665 connman_error("Del IPv6 host route error (%s)",
671 int connman_inet_del_ipv6_host_route(int index, const char *host)
673 return connman_inet_del_ipv6_network_route(index, host, 128);
676 int connman_inet_add_ipv6_network_route(int index, const char *host,
678 unsigned char prefix_len)
683 DBG("index %d host %s gateway %s", index, host, gateway);
688 memset(&rt, 0, sizeof(rt));
690 rt.rtmsg_dst_len = prefix_len;
692 if (inet_pton(AF_INET6, host, &rt.rtmsg_dst) < 0) {
697 rt.rtmsg_flags = RTF_UP | RTF_HOST;
700 rt.rtmsg_flags |= RTF_GATEWAY;
701 inet_pton(AF_INET6, gateway, &rt.rtmsg_gateway);
705 rt.rtmsg_ifindex = index;
707 sk = socket(AF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
713 if (ioctl(sk, SIOCADDRT, &rt) < 0 && errno != EEXIST)
720 connman_error("Set IPv6 host route error (%s)",
726 int connman_inet_add_ipv6_host_route(int index, const char *host,
729 return connman_inet_add_ipv6_network_route(index, host, gateway, 128);
732 int connman_inet_clear_ipv6_gateway_address(int index, const char *gateway)
737 DBG("index %d gateway %s", index, gateway);
742 memset(&rt, 0, sizeof(rt));
744 if (inet_pton(AF_INET6, gateway, &rt.rtmsg_gateway) < 0) {
749 rt.rtmsg_flags = RTF_UP | RTF_GATEWAY;
751 rt.rtmsg_dst_len = 0;
752 rt.rtmsg_ifindex = index;
754 sk = socket(AF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
760 if (ioctl(sk, SIOCDELRT, &rt) < 0 && errno != ESRCH)
767 connman_error("Clear default IPv6 gateway error (%s)",
773 int connman_inet_set_gateway_interface(int index)
777 struct sockaddr_in addr;
780 DBG("index %d", index);
782 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
788 memset(&ifr, 0, sizeof(ifr));
789 ifr.ifr_ifindex = index;
791 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
797 DBG("ifname %s", ifr.ifr_name);
799 memset(&rt, 0, sizeof(rt));
800 rt.rt_flags = RTF_UP;
802 memset(&addr, 0, sizeof(addr));
803 addr.sin_family = AF_INET;
804 addr.sin_addr.s_addr = INADDR_ANY;
806 memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
807 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
808 memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
810 rt.rt_dev = ifr.ifr_name;
812 if (ioctl(sk, SIOCADDRT, &rt) < 0 && errno != EEXIST)
819 connman_error("Setting default interface route failed (%s)",
825 int connman_inet_set_ipv6_gateway_interface(int index)
829 struct sockaddr_in6 addr;
830 const struct in6_addr any = IN6ADDR_ANY_INIT;
833 DBG("index %d", index);
835 sk = socket(PF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
841 memset(&ifr, 0, sizeof(ifr));
842 ifr.ifr_ifindex = index;
844 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
850 DBG("ifname %s", ifr.ifr_name);
852 memset(&rt, 0, sizeof(rt));
853 rt.rt_flags = RTF_UP;
855 memset(&addr, 0, sizeof(addr));
856 addr.sin6_family = AF_INET6;
857 addr.sin6_addr = any;
859 memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
860 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
861 memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
863 rt.rt_dev = ifr.ifr_name;
865 if (ioctl(sk, SIOCADDRT, &rt) < 0 && errno != EEXIST)
872 connman_error("Setting default interface route failed (%s)",
878 int connman_inet_clear_gateway_address(int index, const char *gateway)
882 struct sockaddr_in addr;
885 DBG("index %d gateway %s", index, gateway);
887 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
893 memset(&ifr, 0, sizeof(ifr));
894 ifr.ifr_ifindex = index;
896 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
902 DBG("ifname %s", ifr.ifr_name);
904 memset(&rt, 0, sizeof(rt));
905 rt.rt_flags = RTF_UP | RTF_GATEWAY;
907 memset(&addr, 0, sizeof(addr));
908 addr.sin_family = AF_INET;
909 addr.sin_addr.s_addr = INADDR_ANY;
910 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
912 memset(&addr, 0, sizeof(addr));
913 addr.sin_family = AF_INET;
914 addr.sin_addr.s_addr = inet_addr(gateway);
915 memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
917 memset(&addr, 0, sizeof(addr));
918 addr.sin_family = AF_INET;
919 addr.sin_addr.s_addr = INADDR_ANY;
920 memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
922 if (ioctl(sk, SIOCDELRT, &rt) < 0 && errno != ESRCH)
929 connman_error("Removing default gateway route failed (%s)",
935 int connman_inet_clear_gateway_interface(int index)
939 struct sockaddr_in addr;
942 DBG("index %d", index);
944 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
950 memset(&ifr, 0, sizeof(ifr));
951 ifr.ifr_ifindex = index;
953 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
959 DBG("ifname %s", ifr.ifr_name);
961 memset(&rt, 0, sizeof(rt));
962 rt.rt_flags = RTF_UP;
964 memset(&addr, 0, sizeof(addr));
965 addr.sin_family = AF_INET;
966 addr.sin_addr.s_addr = INADDR_ANY;
968 memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
969 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
970 memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
972 rt.rt_dev = ifr.ifr_name;
974 if (ioctl(sk, SIOCDELRT, &rt) < 0 && errno != ESRCH)
981 connman_error("Removing default interface route failed (%s)",
987 int connman_inet_clear_ipv6_gateway_interface(int index)
991 struct sockaddr_in6 addr;
992 const struct in6_addr any = IN6ADDR_ANY_INIT;
995 DBG("index %d", index);
997 sk = socket(PF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1003 memset(&ifr, 0, sizeof(ifr));
1004 ifr.ifr_ifindex = index;
1006 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
1012 DBG("ifname %s", ifr.ifr_name);
1014 memset(&rt, 0, sizeof(rt));
1015 rt.rt_flags = RTF_UP;
1017 memset(&addr, 0, sizeof(addr));
1018 addr.sin6_family = AF_INET6;
1019 addr.sin6_addr = any;
1021 memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
1022 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
1023 memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
1025 rt.rt_dev = ifr.ifr_name;
1027 if (ioctl(sk, SIOCDELRT, &rt) < 0 && errno != ESRCH)
1034 connman_error("Removing default interface route failed (%s)",
1040 bool connman_inet_compare_subnet(int index, const char *host)
1043 struct in_addr _host_addr;
1044 in_addr_t host_addr, netmask_addr, if_addr;
1045 struct sockaddr_in *netmask, *addr;
1048 DBG("host %s", host);
1053 if (inet_aton(host, &_host_addr) == 0)
1055 host_addr = _host_addr.s_addr;
1057 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1061 memset(&ifr, 0, sizeof(ifr));
1062 ifr.ifr_ifindex = index;
1064 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
1069 if (ioctl(sk, SIOCGIFNETMASK, &ifr) < 0) {
1074 netmask = (struct sockaddr_in *)&ifr.ifr_netmask;
1075 netmask_addr = netmask->sin_addr.s_addr;
1077 if (ioctl(sk, SIOCGIFADDR, &ifr) < 0) {
1084 addr = (struct sockaddr_in *)&ifr.ifr_addr;
1085 if_addr = addr->sin_addr.s_addr;
1087 return ((if_addr & netmask_addr) == (host_addr & netmask_addr));
1090 int connman_inet_remove_from_bridge(int index, const char *bridge)
1098 sk = socket(AF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0);
1104 memset(&ifr, 0, sizeof(ifr));
1105 strncpy(ifr.ifr_name, bridge, sizeof(ifr.ifr_name) - 1);
1106 ifr.ifr_ifindex = index;
1108 if (ioctl(sk, SIOCBRDELIF, &ifr) < 0)
1115 connman_error("Remove interface from bridge error %s",
1121 int connman_inet_add_to_bridge(int index, const char *bridge)
1129 sk = socket(AF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0);
1135 memset(&ifr, 0, sizeof(ifr));
1136 strncpy(ifr.ifr_name, bridge, sizeof(ifr.ifr_name) - 1);
1137 ifr.ifr_ifindex = index;
1139 if (ioctl(sk, SIOCBRADDIF, &ifr) < 0)
1146 connman_error("Add interface to bridge error %s",
1152 int connman_inet_set_mtu(int index, int mtu)
1157 sk = socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1161 memset(&ifr, 0, sizeof(ifr));
1162 ifr.ifr_ifindex = index;
1164 err = ioctl(sk, SIOCGIFNAME, &ifr);
1167 err = ioctl(sk, SIOCSIFMTU, &ifr);
1174 int connman_inet_setup_tunnel(char *tunnel, int mtu)
1184 sk = socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1188 index = if_nametoindex(tunnel);
1190 err = connman_inet_set_mtu(index, mtu);
1194 memset(&ifr, 0, sizeof(ifr));
1195 strncpy(ifr.ifr_name, tunnel, sizeof(ifr.ifr_name) - 1);
1196 err = ioctl(sk, SIOCGIFFLAGS, &ifr);
1203 if ((ifr.ifr_flags ^ flags) & mask) {
1204 ifr.ifr_flags &= ~mask;
1205 ifr.ifr_flags |= mask & flags;
1206 err = ioctl(sk, SIOCSIFFLAGS, &ifr);
1208 connman_error("SIOCSIFFLAGS failed: %s",
1217 int connman_inet_create_tunnel(char **iface)
1222 fd = open("/dev/net/tun", O_RDWR | O_CLOEXEC);
1225 connman_error("Failed to open /dev/net/tun: %s",
1230 memset(&ifr, 0, sizeof(ifr));
1231 ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
1233 for (i = 0; i < 256; i++) {
1234 sprintf(ifr.ifr_name, "tun%d", i);
1236 if (!ioctl(fd, TUNSETIFF, (void *)&ifr))
1241 connman_error("Failed to find available tun device");
1246 *iface = g_strdup(ifr.ifr_name);
1252 * This callback struct is used when sending router and neighbor
1253 * solicitation and advertisement messages.
1256 GIOChannel *channel;
1258 struct sockaddr_in6 addr;
1264 #define CMSG_BUF_LEN 512
1265 #define IN6ADDR_ALL_NODES_MC_INIT \
1266 { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x1 } } } /* ff02::1 */
1267 #define IN6ADDR_ALL_ROUTERS_MC_INIT \
1268 { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x2 } } } /* ff02::2 */
1270 static const struct in6_addr in6addr_all_nodes_mc = IN6ADDR_ALL_NODES_MC_INIT;
1271 static const struct in6_addr in6addr_all_routers_mc =
1272 IN6ADDR_ALL_ROUTERS_MC_INIT;
1274 static void xs_cleanup(struct xs_cb_data *data)
1276 if (data->channel) {
1277 g_io_channel_shutdown(data->channel, TRUE, NULL);
1278 g_io_channel_unref(data->channel);
1279 data->channel = NULL;
1282 if (data->timeout > 0)
1283 g_source_remove(data->timeout);
1285 if (data->watch_id > 0)
1286 g_source_remove(data->watch_id);
1291 static gboolean rs_timeout_cb(gpointer user_data)
1293 struct xs_cb_data *data = user_data;
1295 DBG("user data %p", user_data);
1300 if (data->callback) {
1301 __connman_inet_rs_cb_t cb = data->callback;
1302 cb(NULL, 0, data->user_data);
1310 static int icmpv6_recv(int fd, struct xs_cb_data *data)
1314 unsigned char chdr[CMSG_BUF_LEN];
1315 unsigned char buf[1540];
1316 struct nd_router_advert *hdr;
1317 struct sockaddr_in6 saddr;
1319 __connman_inet_rs_cb_t cb = data->callback;
1323 iov.iov_len = sizeof(buf);
1326 mhdr.msg_name = (void *)&saddr;
1327 mhdr.msg_namelen = sizeof(struct sockaddr_in6);
1329 mhdr.msg_iov = &iov;
1330 mhdr.msg_iovlen = 1;
1331 mhdr.msg_control = (void *)chdr;
1332 mhdr.msg_controllen = CMSG_BUF_LEN;
1334 len = recvmsg(fd, &mhdr, 0);
1336 cb(NULL, 0, data->user_data);
1340 #if defined TIZEN_EXT
1341 /* Set Received Source Address from router as IPv6 Gateway Address */
1342 char src_addr[INET6_ADDRSTRLEN];
1343 if(inet_ntop(AF_INET6, &(saddr.sin6_addr), src_addr, INET6_ADDRSTRLEN)
1348 DBG("Received Source Address %s from router", src_addr);
1350 /* icmpv6_recv() function can be called in two scenarios :
1351 * 1. When __connman_inet_ipv6_send_rs() is called from check_dhcpv6()
1352 * 2. When __connman_inet_ipv6_send_rs() is called from
1353 * __connman_6to4_probe()
1354 * In the second case it is not required to set DHCPv6 Gateway Address
1355 * as DHCPv6 was not started and network structure was not passed as
1356 * user_data. If it is tried to add Source Address as Gateway Address
1357 * then it will lead to crash because of user_data being ip_address
1358 * instead of network structure. So Adding Gateway Address in case 1st
1361 char *address = data->user_data;
1363 unsigned char buffer[sizeof(struct in6_addr)] = {0, };
1364 /* Checking if user_data is an ip_address */
1365 err = inet_pton(AF_INET, address, buffer);
1366 /* Setting Received Source Address from
1367 * router as Gateway Address */
1369 __connman_network_set_auto_ipv6_gateway(src_addr, data->user_data);
1371 hdr = (struct nd_router_advert *)buf;
1372 DBG("code %d len %zd hdr %zd", hdr->nd_ra_code, len,
1373 sizeof(struct nd_router_advert));
1374 if (hdr->nd_ra_code != 0)
1377 cb(hdr, len, data->user_data);
1382 static gboolean icmpv6_event(GIOChannel *chan, GIOCondition cond, gpointer data)
1385 struct xs_cb_data *xs_data = data;
1389 if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
1392 fd = g_io_channel_unix_get_fd(chan);
1393 ret = icmpv6_recv(fd, xs_data);
1398 xs_cleanup(xs_data);
1402 /* Adapted from RFC 1071 "C" Implementation Example */
1403 static uint16_t csum(const void *phdr, const void *data, socklen_t datalen,
1404 const void *extra_data, socklen_t extra_datalen)
1406 register unsigned long sum = 0;
1411 /* caller must make sure datalen is even */
1413 addr = (uint16_t *)phdr;
1414 for (i = 0; i < 20; i++)
1418 addr = (uint16_t *)data;
1426 count = extra_datalen;
1427 addr = (uint16_t *)extra_data;
1436 sum = (sum & 0xffff) + (sum >> 16);
1438 return (uint16_t)~sum;
1441 static int ndisc_send_unspec(int type, int oif, const struct in6_addr *dest,
1442 const struct in6_addr *source,
1443 unsigned char *buf, size_t len, uint16_t lifetime)
1446 struct in6_addr src;
1447 struct in6_addr dst;
1449 uint8_t reserved[3];
1456 struct icmp6_hdr icmp;
1457 struct nd_neighbor_solicit ns;
1458 struct nd_router_solicit rs;
1459 struct nd_router_advert ra;
1464 struct cmsghdr *cmsg;
1465 struct in6_pktinfo *pinfo;
1466 struct sockaddr_in6 dst, src;
1467 char cbuf[CMSG_SPACE(sizeof(*pinfo))];
1468 struct iovec iov[2];
1469 int fd, datalen, ret, iovlen = 1;
1470 #if defined TIZEN_EXT
1476 fd = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC, IPPROTO_RAW);
1480 memset(&frame, 0, sizeof(frame));
1481 memset(&dst, 0, sizeof(dst));
1483 if (type == ND_ROUTER_SOLICIT)
1484 datalen = sizeof(frame.i.rs); /* 8, csum() safe */
1485 else if (type == ND_ROUTER_ADVERT) {
1486 datalen = sizeof(frame.i.ra); /* 16, csum() safe */
1487 frame.i.ra.nd_ra_router_lifetime = htons(lifetime);
1488 } else if (type == ND_NEIGHBOR_SOLICIT) {
1489 datalen = sizeof(frame.i.ns); /* 24, csum() safe */
1490 memcpy(&frame.i.ns.nd_ns_target, buf, sizeof(struct in6_addr));
1496 dst.sin6_addr = *dest;
1499 src.sin6_addr = *source;
1501 src.sin6_addr = in6addr_any;
1503 /* Fill in the IPv6 header */
1504 frame.ip.ip6_vfc = 0x60;
1505 frame.ip.ip6_plen = htons(datalen + len);
1506 frame.ip.ip6_nxt = IPPROTO_ICMPV6;
1507 frame.ip.ip6_hlim = 255;
1508 frame.ip.ip6_dst = dst.sin6_addr;
1509 frame.ip.ip6_src = src.sin6_addr;
1510 /* all other fields are already set to zero */
1512 /* Prepare pseudo header for csum */
1513 memset(&phdr, 0, sizeof(phdr));
1514 phdr.dst = dst.sin6_addr;
1515 phdr.src = src.sin6_addr;
1516 phdr.plen = htonl(datalen + len);
1517 phdr.nxt = IPPROTO_ICMPV6;
1519 /* Fill in remaining ICMP header fields */
1520 frame.i.icmp.icmp6_type = type;
1521 frame.i.icmp.icmp6_cksum = csum(&phdr, &frame.i, datalen, buf, len);
1523 iov[0].iov_base = &frame;
1524 iov[0].iov_len = sizeof(frame.ip) + datalen;
1527 iov[1].iov_base = buf;
1528 iov[1].iov_len = len;
1532 dst.sin6_family = AF_INET6;
1533 msgh.msg_name = &dst;
1534 msgh.msg_namelen = sizeof(dst);
1536 msgh.msg_iovlen = iovlen;
1539 memset(cbuf, 0, CMSG_SPACE(sizeof(*pinfo)));
1540 cmsg = (struct cmsghdr *)cbuf;
1541 pinfo = (struct in6_pktinfo *)CMSG_DATA(cmsg);
1542 pinfo->ipi6_ifindex = oif;
1544 cmsg->cmsg_len = CMSG_LEN(sizeof(*pinfo));
1545 cmsg->cmsg_level = IPPROTO_IPV6;
1546 cmsg->cmsg_type = IPV6_PKTINFO;
1547 msgh.msg_control = cmsg;
1548 msgh.msg_controllen = cmsg->cmsg_len;
1550 ret = sendmsg(fd, &msgh, 0);
1551 #if defined TIZEN_EXT
1552 DBG("sendmsg errno: %d/%s", errno, strerror_r(errno, ebuf, sizeof(ebuf)));
1559 static inline void ipv6_addr_set(struct in6_addr *addr,
1560 uint32_t w1, uint32_t w2,
1561 uint32_t w3, uint32_t w4)
1563 addr->s6_addr32[0] = w1;
1564 addr->s6_addr32[1] = w2;
1565 addr->s6_addr32[2] = w3;
1566 addr->s6_addr32[3] = w4;
1569 static inline void ipv6_addr_solict_mult(const struct in6_addr *addr,
1570 struct in6_addr *solicited)
1572 ipv6_addr_set(solicited, htonl(0xFF020000), 0, htonl(0x1),
1573 htonl(0xFF000000) | addr->s6_addr32[3]);
1576 static int if_mc_group(int sock, int ifindex, const struct in6_addr *mc_addr,
1579 unsigned int val = 0;
1580 struct ipv6_mreq mreq;
1583 memset(&mreq, 0, sizeof(mreq));
1584 mreq.ipv6mr_interface = ifindex;
1585 mreq.ipv6mr_multiaddr = *mc_addr;
1587 ret = setsockopt(sock, IPPROTO_IPV6, IPV6_MULTICAST_LOOP,
1591 DBG("Cannot set IPV6_MULTICAST_LOOP %d/%s", ret,
1596 ret = setsockopt(sock, IPPROTO_IPV6, cmd, &mreq, sizeof(mreq));
1599 DBG("Cannot set option %d %d/%s", cmd, ret, strerror(-ret));
1606 int __connman_inet_ipv6_send_rs(int index, int timeout,
1607 __connman_inet_rs_cb_t callback, void *user_data)
1609 struct xs_cb_data *data;
1610 struct icmp6_filter filter;
1611 struct in6_addr solicit;
1612 struct in6_addr dst = in6addr_all_routers_mc;
1618 data = g_try_malloc0(sizeof(struct xs_cb_data));
1622 data->callback = callback;
1623 data->user_data = user_data;
1624 data->timeout = g_timeout_add_seconds(timeout, rs_timeout_cb, data);
1626 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, NULL, NULL, 0, 0);
1657 static inline void ipv6_addr_advert_mult(const struct in6_addr *addr,
1658 struct in6_addr *advert)
1660 ipv6_addr_set(advert, htonl(0xFF020000), 0, htonl(0x2),
1661 htonl(0xFF000000) | addr->s6_addr32[3]);
1664 #define MSG_SIZE_SEND 1452
1666 static int inc_len(int len, int inc)
1668 if (len > MSG_SIZE_SEND)
1675 int __connman_inet_ipv6_send_ra(int index, struct in6_addr *src_addr,
1676 GSList *prefixes, int router_lifetime)
1679 struct in6_addr src, *source;
1680 struct in6_addr dst = in6addr_all_nodes_mc;
1681 GDHCPIAPrefix *prefix;
1682 unsigned char buf[MSG_SIZE_SEND];
1683 char addr_str[INET6_ADDRSTRLEN];
1690 sk = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC, IPPROTO_ICMPV6);
1695 __connman_inet_get_interface_ll_address(index, AF_INET6, &src);
1700 DBG("sock %d index %d prefixes %p src %s lifetime %d", sk, index,
1701 prefixes, inet_ntop(AF_INET6, source, addr_str,
1705 memset(buf, 0, MSG_SIZE_SEND);
1708 for (list = prefixes; list; list = list->next) {
1709 struct nd_opt_prefix_info *pinfo;
1711 prefix = list->data;
1712 pinfo = (struct nd_opt_prefix_info *)(buf + len);
1714 len = inc_len(len, sizeof(*pinfo));
1720 pinfo->nd_opt_pi_type = ND_OPT_PREFIX_INFORMATION;
1721 pinfo->nd_opt_pi_len = 4;
1722 pinfo->nd_opt_pi_prefix_len = prefix->prefixlen;
1723 pinfo->nd_opt_pi_flags_reserved = ND_OPT_PI_FLAG_ONLINK;
1724 pinfo->nd_opt_pi_flags_reserved |= ND_OPT_PI_FLAG_AUTO;
1725 if (router_lifetime > 0) {
1726 pinfo->nd_opt_pi_valid_time = htonl(prefix->valid);
1727 pinfo->nd_opt_pi_preferred_time =
1728 htonl(prefix->preferred);
1730 pinfo->nd_opt_pi_reserved2 = 0;
1732 memcpy(&pinfo->nd_opt_pi_prefix, &prefix->prefix,
1733 sizeof(struct in6_addr));
1735 DBG("[%d] index %d prefix %s/%d", count, index,
1736 inet_ntop(AF_INET6, &prefix->prefix, addr_str,
1737 INET6_ADDRSTRLEN), prefix->prefixlen);
1743 err = ndisc_send_unspec(ND_ROUTER_ADVERT, index, &dst, source,
1744 buf, len, router_lifetime);
1746 DBG("cannot send RA %d/%s", err, strerror(-err));
1754 void __connman_inet_ipv6_stop_recv_rs(void *context)
1759 xs_cleanup(context);
1762 static int icmpv6_rs_recv(int fd, struct xs_cb_data *data)
1766 unsigned char chdr[CMSG_BUF_LEN];
1767 unsigned char buf[1540];
1768 struct nd_router_solicit *hdr;
1769 struct sockaddr_in6 saddr;
1771 __connman_inet_recv_rs_cb_t cb = data->callback;
1775 iov.iov_len = sizeof(buf);
1778 mhdr.msg_name = (void *)&saddr;
1779 mhdr.msg_namelen = sizeof(struct sockaddr_in6);
1781 mhdr.msg_iov = &iov;
1782 mhdr.msg_iovlen = 1;
1783 mhdr.msg_control = (void *)chdr;
1784 mhdr.msg_controllen = CMSG_BUF_LEN;
1786 len = recvmsg(fd, &mhdr, 0);
1788 cb(NULL, 0, data->user_data);
1792 hdr = (struct nd_router_solicit *)buf;
1793 DBG("code %d len %zd hdr %zd", hdr->nd_rs_code, len,
1794 sizeof(struct nd_router_solicit));
1795 if (hdr->nd_rs_code != 0)
1798 cb(hdr, len, data->user_data);
1802 static gboolean icmpv6_rs_event(GIOChannel *chan, GIOCondition cond,
1806 struct xs_cb_data *xs_data = data;
1810 if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
1813 fd = g_io_channel_unix_get_fd(chan);
1814 ret = icmpv6_rs_recv(fd, xs_data);
1819 xs_data->watch_id = 0;
1823 int __connman_inet_ipv6_start_recv_rs(int index,
1824 __connman_inet_recv_rs_cb_t callback,
1828 struct xs_cb_data *data;
1829 struct icmp6_filter filter;
1830 char addr_str[INET6_ADDRSTRLEN];
1833 data = g_try_malloc0(sizeof(struct xs_cb_data));
1837 data->callback = callback;
1838 data->user_data = user_data;
1840 sk = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC, IPPROTO_ICMPV6);
1848 ICMP6_FILTER_SETBLOCKALL(&filter);
1849 ICMP6_FILTER_SETPASS(ND_ROUTER_SOLICIT, &filter);
1851 setsockopt(sk, IPPROTO_ICMPV6, ICMP6_FILTER, &filter,
1852 sizeof(struct icmp6_filter));
1854 err = if_mc_group(sk, index, &in6addr_all_routers_mc, IPV6_JOIN_GROUP);
1856 DBG("Cannot join mc %s %d/%s", inet_ntop(AF_INET6,
1857 &in6addr_all_routers_mc, addr_str, INET6_ADDRSTRLEN),
1858 err, strerror(-err));
1860 data->channel = g_io_channel_unix_new(sk);
1861 g_io_channel_set_close_on_unref(data->channel, TRUE);
1863 g_io_channel_set_encoding(data->channel, NULL, NULL);
1864 g_io_channel_set_buffered(data->channel, FALSE);
1866 data->watch_id = g_io_add_watch(data->channel,
1867 G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
1868 icmpv6_rs_event, data);
1875 static gboolean ns_timeout_cb(gpointer user_data)
1877 struct xs_cb_data *data = user_data;
1879 DBG("user data %p", user_data);
1884 if (data->callback) {
1885 __connman_inet_ns_cb_t cb = data->callback;
1886 cb(NULL, 0, &data->addr.sin6_addr, data->user_data);
1894 static int icmpv6_nd_recv(int fd, struct xs_cb_data *data)
1898 unsigned char chdr[CMSG_BUF_LEN];
1899 unsigned char buf[1540];
1900 struct nd_neighbor_advert *hdr;
1901 struct sockaddr_in6 saddr;
1903 __connman_inet_ns_cb_t cb = data->callback;
1907 iov.iov_len = sizeof(buf);
1910 mhdr.msg_name = (void *)&saddr;
1911 mhdr.msg_namelen = sizeof(struct sockaddr_in6);
1913 mhdr.msg_iov = &iov;
1914 mhdr.msg_iovlen = 1;
1915 mhdr.msg_control = (void *)chdr;
1916 mhdr.msg_controllen = CMSG_BUF_LEN;
1918 len = recvmsg(fd, &mhdr, 0);
1920 cb(NULL, 0, &data->addr.sin6_addr, data->user_data);
1924 hdr = (struct nd_neighbor_advert *)buf;
1925 DBG("code %d len %zd hdr %zd", hdr->nd_na_code, len,
1926 sizeof(struct nd_neighbor_advert));
1927 if (hdr->nd_na_code != 0)
1931 * We can receive any neighbor advertisement so we need to check if the
1932 * packet was meant for us and ignore the packet otherwise.
1934 if (memcmp(&data->addr.sin6_addr, &hdr->nd_na_target,
1935 sizeof(struct in6_addr)))
1938 cb(hdr, len, &data->addr.sin6_addr, data->user_data);
1943 static gboolean icmpv6_nd_event(GIOChannel *chan, GIOCondition cond,
1947 struct xs_cb_data *xs_data = data;
1951 if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
1954 fd = g_io_channel_unix_get_fd(chan);
1955 ret = icmpv6_nd_recv(fd, xs_data);
1960 xs_cleanup(xs_data);
1964 int __connman_inet_ipv6_do_dad(int index, int timeout_ms,
1965 struct in6_addr *addr,
1966 __connman_inet_ns_cb_t callback,
1969 struct xs_cb_data *data;
1970 struct icmp6_filter filter;
1971 struct in6_addr solicit;
1972 int sk, err, val = 1;
1974 if (timeout_ms <= 0)
1977 data = g_try_malloc0(sizeof(struct xs_cb_data));
1981 data->callback = callback;
1982 data->user_data = user_data;
1983 data->timeout = g_timeout_add_full(G_PRIORITY_DEFAULT,
1988 memcpy(&data->addr.sin6_addr, addr, sizeof(struct in6_addr));
1990 sk = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC, IPPROTO_ICMPV6);
1996 ICMP6_FILTER_SETBLOCKALL(&filter);
1997 ICMP6_FILTER_SETPASS(ND_NEIGHBOR_ADVERT, &filter);
1999 setsockopt(sk, IPPROTO_ICMPV6, ICMP6_FILTER, &filter,
2000 sizeof(struct icmp6_filter));
2002 if (setsockopt(sk, IPPROTO_IPV6, IPV6_RECVPKTINFO,
2003 &val, sizeof(val)) < 0) {
2005 DBG("Cannot set IPV6_RECVPKTINFO %d/%s", err,
2011 if (setsockopt(sk, IPPROTO_IPV6, IPV6_RECVHOPLIMIT,
2012 &val, sizeof(val)) < 0) {
2014 DBG("Cannot set IPV6_RECVHOPLIMIT %d/%s", err,
2021 setsockopt(sk, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &val, sizeof(val));
2023 ipv6_addr_solict_mult(addr, &solicit);
2024 if_mc_group(sk, index, &in6addr_all_nodes_mc, IPV6_JOIN_GROUP);
2025 if_mc_group(sk, index, &solicit, IPV6_JOIN_GROUP);
2027 data->channel = g_io_channel_unix_new(sk);
2028 g_io_channel_set_close_on_unref(data->channel, TRUE);
2030 g_io_channel_set_encoding(data->channel, NULL, NULL);
2031 g_io_channel_set_buffered(data->channel, FALSE);
2033 data->watch_id = g_io_add_watch(data->channel,
2034 G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
2035 icmpv6_nd_event, data);
2037 err = ndisc_send_unspec(ND_NEIGHBOR_SOLICIT, index, &solicit, NULL,
2038 (unsigned char *)addr, 0, 0);
2040 DBG("Cannot send NS %d/%s", err, strerror(-err));
2047 GSList *__connman_inet_ipv6_get_prefixes(struct nd_router_advert *hdr,
2048 unsigned int length)
2050 GSList *prefixes = NULL;
2054 if (length <= sizeof(struct nd_router_advert))
2057 len = length - sizeof(struct nd_router_advert);
2058 pos = (uint8_t *)hdr + sizeof(struct nd_router_advert);
2061 struct nd_opt_prefix_info *pinfo;
2062 char prefix_str[INET6_ADDRSTRLEN+1], *str;
2069 optlen = pos[1] << 3;
2070 if (optlen == 0 || optlen > len)
2074 case ND_OPT_PREFIX_INFORMATION:
2075 pinfo = (struct nd_opt_prefix_info *)pos;
2076 prefix = inet_ntop(AF_INET6, &pinfo->nd_opt_pi_prefix,
2077 prefix_str, INET6_ADDRSTRLEN);
2081 str = g_strdup_printf("%s/%d", prefix,
2082 pinfo->nd_opt_pi_prefix_len);
2083 prefixes = g_slist_prepend(prefixes, str);
2085 DBG("prefix %s", str);
2097 static int get_dest_addr(int family, int index, char *buf, int len)
2103 sk = socket(family, SOCK_DGRAM | SOCK_CLOEXEC, 0);
2107 memset(&ifr, 0, sizeof(ifr));
2108 ifr.ifr_ifindex = index;
2110 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
2111 DBG("SIOCGIFNAME (%d/%s)", errno, strerror(errno));
2116 if (ioctl(sk, SIOCGIFFLAGS, &ifr) < 0) {
2117 DBG("SIOCGIFFLAGS (%d/%s)", errno, strerror(errno));
2122 if ((ifr.ifr_flags & IFF_POINTOPOINT) == 0) {
2128 DBG("index %d %s", index, ifr.ifr_name);
2130 if (ioctl(sk, SIOCGIFDSTADDR, &ifr) < 0) {
2131 connman_error("Get destination address failed (%s)",
2141 addr = &((struct sockaddr_in *)&ifr.ifr_dstaddr)->sin_addr;
2144 addr = &((struct sockaddr_in6 *)&ifr.ifr_dstaddr)->sin6_addr;
2151 if (!inet_ntop(family, addr, buf, len)) {
2152 DBG("error %d/%s", errno, strerror(errno));
2159 int connman_inet_get_dest_addr(int index, char **dest)
2161 char addr[INET_ADDRSTRLEN];
2164 ret = get_dest_addr(PF_INET, index, addr, INET_ADDRSTRLEN);
2168 *dest = g_strdup(addr);
2170 DBG("destination %s", *dest);
2175 int connman_inet_ipv6_get_dest_addr(int index, char **dest)
2177 char addr[INET6_ADDRSTRLEN];
2180 ret = get_dest_addr(PF_INET6, index, addr, INET6_ADDRSTRLEN);
2184 *dest = g_strdup(addr);
2186 DBG("destination %s", *dest);
2191 int __connman_inet_rtnl_open(struct __connman_inet_rtnl_handle *rth)
2194 int rcvbuf = 1024 * 4;
2196 rth->fd = socket(AF_NETLINK, SOCK_RAW | SOCK_CLOEXEC, NETLINK_ROUTE);
2198 connman_error("Can not open netlink socket: %s",
2203 if (setsockopt(rth->fd, SOL_SOCKET, SO_SNDBUF, &sndbuf,
2204 sizeof(sndbuf)) < 0) {
2205 connman_error("SO_SNDBUF: %s", strerror(errno));
2209 if (setsockopt(rth->fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf,
2210 sizeof(rcvbuf)) < 0) {
2211 connman_error("SO_RCVBUF: %s", strerror(errno));
2215 memset(&rth->local, 0, sizeof(rth->local));
2216 rth->local.nl_family = AF_NETLINK;
2217 rth->local.nl_groups = 0;
2219 if (bind(rth->fd, (struct sockaddr *)&rth->local,
2220 sizeof(rth->local)) < 0) {
2221 connman_error("Can not bind netlink socket: %s",
2226 rth->seq = time(NULL);
2228 DBG("fd %d", rth->fd);
2233 struct inet_rtnl_cb_data {
2234 GIOChannel *channel;
2235 __connman_inet_rtnl_cb_t callback;
2238 struct __connman_inet_rtnl_handle *rtnl;
2242 static void inet_rtnl_cleanup(struct inet_rtnl_cb_data *data)
2244 struct __connman_inet_rtnl_handle *rth = data->rtnl;
2246 if (data->channel) {
2247 g_io_channel_shutdown(data->channel, TRUE, NULL);
2248 g_io_channel_unref(data->channel);
2249 data->channel = NULL;
2252 DBG("data %p", data);
2254 if (data->rtnl_timeout > 0)
2255 g_source_remove(data->rtnl_timeout);
2257 if (data->watch_id > 0)
2258 g_source_remove(data->watch_id);
2261 __connman_inet_rtnl_close(rth);
2268 static gboolean inet_rtnl_timeout_cb(gpointer user_data)
2270 struct inet_rtnl_cb_data *data = user_data;
2272 DBG("user data %p", user_data);
2278 data->callback(NULL, data->user_data);
2280 data->rtnl_timeout = 0;
2281 inet_rtnl_cleanup(data);
2285 static int inet_rtnl_recv(GIOChannel *chan, struct inet_rtnl_cb_data *rtnl_data)
2287 struct __connman_inet_rtnl_handle *rth = rtnl_data->rtnl;
2288 struct nlmsghdr *h = NULL;
2289 struct sockaddr_nl nladdr;
2290 socklen_t addr_len = sizeof(nladdr);
2291 unsigned char buf[4096];
2296 memset(buf, 0, sizeof(buf));
2297 memset(&nladdr, 0, sizeof(nladdr));
2299 fd = g_io_channel_unix_get_fd(chan);
2301 status = recvfrom(fd, buf, sizeof(buf), 0,
2302 (struct sockaddr *) &nladdr, &addr_len);
2304 if (errno == EINTR || errno == EAGAIN)
2313 if (nladdr.nl_pid != 0) { /* not sent by kernel, ignore */
2314 DBG("Received msg from %u, ignoring it", nladdr.nl_pid);
2321 struct nlmsgerr *err;
2325 if (!NLMSG_OK(h, len))
2328 if (h->nlmsg_seq != rth->seq) {
2330 DBG("skip %d/%d len %d", rth->seq,
2331 h->nlmsg_seq, h->nlmsg_len);
2333 len -= h->nlmsg_len;
2334 ptr += h->nlmsg_len;
2338 switch (h->nlmsg_type) {
2344 err = (struct nlmsgerr *)NLMSG_DATA(h);
2345 connman_error("RTNETLINK answers %s (%d)",
2346 strerror(-err->error), -err->error);
2353 if (h->nlmsg_seq == rth->seq) {
2354 DBG("received %d seq %d", h->nlmsg_len, h->nlmsg_seq);
2356 rtnl_data->callback(h, rtnl_data->user_data);
2358 inet_rtnl_cleanup(rtnl_data);
2364 static gboolean inet_rtnl_event(GIOChannel *chan, GIOCondition cond,
2368 struct inet_rtnl_cb_data *rtnl_data = user_data;
2372 if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
2375 ret = inet_rtnl_recv(chan, rtnl_data);
2380 inet_rtnl_cleanup(rtnl_data);
2384 int __connman_inet_rtnl_talk(struct __connman_inet_rtnl_handle *rtnl,
2385 struct nlmsghdr *n, int timeout,
2386 __connman_inet_rtnl_cb_t callback, void *user_data)
2388 struct sockaddr_nl nladdr;
2389 struct inet_rtnl_cb_data *data;
2392 memset(&nladdr, 0, sizeof(nladdr));
2393 nladdr.nl_family = AF_NETLINK;
2395 n->nlmsg_seq = ++rtnl->seq;
2398 data = g_try_malloc0(sizeof(struct inet_rtnl_cb_data));
2402 data->callback = callback;
2403 data->user_data = user_data;
2405 data->rtnl_timeout = g_timeout_add_seconds(timeout,
2406 inet_rtnl_timeout_cb, data);
2408 data->channel = g_io_channel_unix_new(rtnl->fd);
2410 g_io_channel_set_encoding(data->channel, NULL, NULL);
2411 g_io_channel_set_buffered(data->channel, FALSE);
2413 data->watch_id = g_io_add_watch(data->channel,
2414 G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
2415 inet_rtnl_event, data);
2417 n->nlmsg_flags |= NLM_F_ACK;
2419 err = sendto(rtnl->fd, &rtnl->req.n, rtnl->req.n.nlmsg_len, 0,
2420 (struct sockaddr *) &nladdr, sizeof(nladdr));
2421 DBG("handle %p len %d", rtnl, rtnl->req.n.nlmsg_len);
2423 connman_error("Can not talk to rtnetlink err %d %s",
2424 -errno, strerror(errno));
2428 if ((unsigned int)err != rtnl->req.n.nlmsg_len) {
2429 connman_error("Sent %d bytes, msg truncated", err);
2436 void __connman_inet_rtnl_close(struct __connman_inet_rtnl_handle *rth)
2438 DBG("handle %p", rth);
2446 int __connman_inet_rtnl_addattr32(struct nlmsghdr *n, size_t maxlen, int type,
2449 int len = RTA_LENGTH(4);
2452 if (NLMSG_ALIGN(n->nlmsg_len) + len > maxlen) {
2453 DBG("Error! max allowed bound %zd exceeded", maxlen);
2456 rta = NLMSG_TAIL(n);
2457 rta->rta_type = type;
2459 memcpy(RTA_DATA(rta), &data, 4);
2460 n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + len;
2465 static int parse_rtattr(struct rtattr *tb[], int max,
2466 struct rtattr *rta, int len)
2468 memset(tb, 0, sizeof(struct rtattr *) * (max + 1));
2469 while (RTA_OK(rta, len)) {
2470 if ((rta->rta_type <= max) && (!tb[rta->rta_type]))
2471 tb[rta->rta_type] = rta;
2472 rta = RTA_NEXT(rta, len);
2475 connman_error("Deficit %d, rta_len=%d", len, rta->rta_len);
2480 struct get_route_cb_data {
2481 connman_inet_addr_cb_t callback;
2485 static void get_route_cb(struct nlmsghdr *answer, void *user_data)
2487 struct get_route_cb_data *data = user_data;
2488 struct rtattr *tb[RTA_MAX+1];
2489 struct rtmsg *r = NLMSG_DATA(answer);
2490 int len, index = -1;
2492 const char *addr = NULL;
2494 DBG("answer %p data %p", answer, user_data);
2499 len = answer->nlmsg_len;
2501 if (answer->nlmsg_type != RTM_NEWROUTE &&
2502 answer->nlmsg_type != RTM_DELROUTE) {
2503 connman_error("Not a route: %08x %08x %08x",
2504 answer->nlmsg_len, answer->nlmsg_type,
2505 answer->nlmsg_flags);
2509 len -= NLMSG_LENGTH(sizeof(*r));
2511 connman_error("BUG: wrong nlmsg len %d", len);
2515 parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
2518 index = *(int *)RTA_DATA(tb[RTA_OIF]);
2520 if (tb[RTA_GATEWAY])
2521 addr = inet_ntop(r->rtm_family,
2522 RTA_DATA(tb[RTA_GATEWAY]),
2523 abuf, sizeof(abuf));
2525 DBG("addr %s index %d user %p", addr, index, data->user_data);
2528 if (data && data->callback)
2529 data->callback(addr, index, data->user_data);
2537 * Return the interface index that contains route to host.
2539 int __connman_inet_get_route(const char *dest_address,
2540 connman_inet_addr_cb_t callback, void *user_data)
2542 struct get_route_cb_data *data;
2543 struct addrinfo hints, *rp;
2544 struct __connman_inet_rtnl_handle *rth;
2547 DBG("dest %s", dest_address);
2552 memset(&hints, 0, sizeof(hints));
2553 hints.ai_family = AF_UNSPEC;
2554 hints.ai_flags = AI_PASSIVE | AI_NUMERICSERV | AI_NUMERICHOST;
2556 err = getaddrinfo(dest_address, NULL, &hints, &rp);
2560 rth = g_try_malloc0(sizeof(struct __connman_inet_rtnl_handle));
2566 rth->req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
2567 rth->req.n.nlmsg_flags = NLM_F_REQUEST;
2568 rth->req.n.nlmsg_type = RTM_GETROUTE;
2569 rth->req.u.r.rt.rtm_family = rp->ai_family;
2570 rth->req.u.r.rt.rtm_table = 0;
2571 rth->req.u.r.rt.rtm_protocol = 0;
2572 rth->req.u.r.rt.rtm_scope = 0;
2573 rth->req.u.r.rt.rtm_type = 0;
2574 rth->req.u.r.rt.rtm_src_len = 0;
2575 rth->req.u.r.rt.rtm_dst_len = rp->ai_addrlen << 3;
2576 rth->req.u.r.rt.rtm_tos = 0;
2578 __connman_inet_rtnl_addattr_l(&rth->req.n, sizeof(rth->req), RTA_DST,
2579 &rp->ai_addr, rp->ai_addrlen);
2583 err = __connman_inet_rtnl_open(rth);
2587 data = g_try_malloc(sizeof(struct get_route_cb_data));
2593 data->callback = callback;
2594 data->user_data = user_data;
2596 #define GET_ROUTE_TIMEOUT 2
2597 err = __connman_inet_rtnl_talk(rth, &rth->req.n, GET_ROUTE_TIMEOUT,
2598 get_route_cb, data);
2607 __connman_inet_rtnl_close(rth);
2614 int connman_inet_check_ipaddress(const char *host)
2616 struct addrinfo hints;
2617 struct addrinfo *addr;
2620 memset(&hints, 0, sizeof(struct addrinfo));
2621 hints.ai_flags = AI_NUMERICHOST;
2624 result = getaddrinfo(host, NULL, &hints, &addr);
2626 result = addr->ai_family;
2632 /* Check routine modified from ics-dhcp 4.2.3-P2 */
2633 bool connman_inet_check_hostname(const char *ptr, size_t len)
2638 * Not empty or complete length not over 255 characters.
2640 if ((len == 0) || (len > 256))
2644 * Consists of [[:alnum:]-]+ labels separated by [.]
2645 * a [_] is against RFC but seems to be "widely used"
2647 for (p = ptr; (*p != 0) && (len-- > 0); p++) {
2649 if ((*p == '-') || (*p == '_')) {
2651 * Not allowed at begin or end of a label.
2653 if (((p - ptr) == 0) || (len == 0) || (p[1] == '.'))
2656 } else if (*p == '.') {
2658 * Each label has to be 1-63 characters;
2659 * we allow [.] at the end ('foo.bar.')
2663 if ((d <= 0) || (d >= 64))
2666 ptr = p + 1; /* Jump to the next label */
2668 } else if (isalnum((unsigned char)*p) == 0) {
2670 * Also numbers at the begin are fine
2679 char **__connman_inet_get_running_interfaces(void)
2683 struct ifreq *ifr = NULL;
2684 int sk, i, numif, count = 0;
2686 memset(&ifc, 0, sizeof(ifc));
2688 sk = socket(AF_INET, SOCK_DGRAM, 0);
2692 if (ioctl(sk, SIOCGIFCONF, &ifc) < 0)
2696 * Allocate some extra bytes just in case there will
2697 * be new interfaces added between two SIOCGIFCONF
2700 ifr = g_try_malloc0(ifc.ifc_len * 2);
2706 if (ioctl(sk, SIOCGIFCONF, &ifc) < 0)
2709 numif = ifc.ifc_len / sizeof(struct ifreq);
2711 result = g_try_malloc0((numif + 1) * sizeof(char *));
2717 for (i = 0; i < numif; i++) {
2718 struct ifreq *r = &ifr[i];
2719 struct in6_addr *addr6;
2723 * Note that we do not return loopback interfaces here as they
2724 * are not needed for our purposes.
2726 switch (r->ifr_addr.sa_family) {
2728 addr4 = ntohl(((struct sockaddr_in *)
2729 &r->ifr_addr)->sin_addr.s_addr);
2730 if (((addr4 & 0xff000000) >> 24) == 127)
2734 addr6 = &((struct sockaddr_in6 *)
2735 &r->ifr_addr)->sin6_addr;
2736 if (IN6_IS_ADDR_LINKLOCAL(addr6))
2741 result[count++] = g_strdup(r->ifr_name);
2748 char **prev_result = result;
2749 result = g_try_realloc(result, (count + 1) * sizeof(char *));
2751 g_free(prev_result);
2764 bool connman_inet_is_ipv6_supported()
2768 sk = socket(PF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
2776 int __connman_inet_get_interface_address(int index, int family, void *address)
2778 struct ifaddrs *ifaddr, *ifa;
2780 char name[IF_NAMESIZE];
2782 if (!if_indextoname(index, name))
2785 DBG("index %d interface %s", index, name);
2787 if (getifaddrs(&ifaddr) < 0) {
2789 DBG("Cannot get addresses err %d/%s", err, strerror(-err));
2793 for (ifa = ifaddr; ifa; ifa = ifa->ifa_next) {
2797 if (strncmp(ifa->ifa_name, name, IF_NAMESIZE) == 0 &&
2798 ifa->ifa_addr->sa_family == family) {
2799 if (family == AF_INET) {
2800 struct sockaddr_in *in4 = (struct sockaddr_in *)
2802 if (in4->sin_addr.s_addr == INADDR_ANY)
2804 memcpy(address, &in4->sin_addr,
2805 sizeof(struct in_addr));
2806 } else if (family == AF_INET6) {
2807 struct sockaddr_in6 *in6 =
2808 (struct sockaddr_in6 *)ifa->ifa_addr;
2809 if (memcmp(&in6->sin6_addr, &in6addr_any,
2810 sizeof(struct in6_addr)) == 0)
2812 memcpy(address, &in6->sin6_addr,
2813 sizeof(struct in6_addr));
2826 freeifaddrs(ifaddr);
2830 static int iprule_modify(int cmd, int family, uint32_t table_id,
2833 struct __connman_inet_rtnl_handle rth;
2836 memset(&rth, 0, sizeof(rth));
2838 rth.req.n.nlmsg_type = cmd;
2839 rth.req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
2840 rth.req.n.nlmsg_flags = NLM_F_REQUEST;
2841 rth.req.u.r.rt.rtm_family = family;
2842 rth.req.u.r.rt.rtm_protocol = RTPROT_BOOT;
2843 rth.req.u.r.rt.rtm_scope = RT_SCOPE_UNIVERSE;
2844 rth.req.u.r.rt.rtm_table = table_id;
2845 rth.req.u.r.rt.rtm_type = RTN_UNSPEC;
2846 rth.req.u.r.rt.rtm_flags = 0;
2848 if (cmd == RTM_NEWRULE) {
2849 rth.req.n.nlmsg_flags |= NLM_F_CREATE|NLM_F_EXCL;
2850 rth.req.u.r.rt.rtm_type = RTN_UNICAST;
2853 __connman_inet_rtnl_addattr32(&rth.req.n, sizeof(rth.req),
2854 FRA_FWMARK, fwmark);
2856 if (table_id < 256) {
2857 rth.req.u.r.rt.rtm_table = table_id;
2859 rth.req.u.r.rt.rtm_table = RT_TABLE_UNSPEC;
2860 __connman_inet_rtnl_addattr32(&rth.req.n, sizeof(rth.req),
2861 FRA_TABLE, table_id);
2864 if (rth.req.u.r.rt.rtm_family == AF_UNSPEC)
2865 rth.req.u.r.rt.rtm_family = AF_INET;
2867 ret = __connman_inet_rtnl_open(&rth);
2871 ret = __connman_inet_rtnl_send(&rth, &rth.req.n);
2874 __connman_inet_rtnl_close(&rth);
2879 int __connman_inet_add_fwmark_rule(uint32_t table_id, int family, uint32_t fwmark)
2881 /* ip rule add fwmark 9876 table 1234 */
2883 return iprule_modify(RTM_NEWRULE, family, table_id, fwmark);
2886 int __connman_inet_del_fwmark_rule(uint32_t table_id, int family, uint32_t fwmark)
2888 return iprule_modify(RTM_DELRULE, family, table_id, fwmark);
2891 static int iproute_default_modify(int cmd, uint32_t table_id, int ifindex,
2892 const char *gateway)
2894 struct __connman_inet_rtnl_handle rth;
2895 unsigned char buf[sizeof(struct in6_addr)];
2897 int family = connman_inet_check_ipaddress(gateway);
2910 ret = inet_pton(family, gateway, buf);
2914 memset(&rth, 0, sizeof(rth));
2916 rth.req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
2917 rth.req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL;
2918 rth.req.n.nlmsg_type = cmd;
2919 rth.req.u.r.rt.rtm_family = family;
2920 rth.req.u.r.rt.rtm_table = RT_TABLE_MAIN;
2921 rth.req.u.r.rt.rtm_scope = RT_SCOPE_NOWHERE;
2922 rth.req.u.r.rt.rtm_protocol = RTPROT_BOOT;
2923 rth.req.u.r.rt.rtm_scope = RT_SCOPE_UNIVERSE;
2924 rth.req.u.r.rt.rtm_type = RTN_UNICAST;
2926 __connman_inet_rtnl_addattr_l(&rth.req.n, sizeof(rth.req), RTA_GATEWAY,
2928 if (table_id < 256) {
2929 rth.req.u.r.rt.rtm_table = table_id;
2931 rth.req.u.r.rt.rtm_table = RT_TABLE_UNSPEC;
2932 __connman_inet_rtnl_addattr32(&rth.req.n, sizeof(rth.req),
2933 RTA_TABLE, table_id);
2936 __connman_inet_rtnl_addattr32(&rth.req.n, sizeof(rth.req),
2939 ret = __connman_inet_rtnl_open(&rth);
2943 ret = __connman_inet_rtnl_send(&rth, &rth.req.n);
2946 __connman_inet_rtnl_close(&rth);
2951 int __connman_inet_add_default_to_table(uint32_t table_id, int ifindex,
2952 const char *gateway)
2954 /* ip route add default via 1.2.3.4 dev wlan0 table 1234 */
2956 return iproute_default_modify(RTM_NEWROUTE, table_id, ifindex, gateway);
2959 int __connman_inet_del_default_from_table(uint32_t table_id, int ifindex,
2960 const char *gateway)
2962 /* ip route del default via 1.2.3.4 dev wlan0 table 1234 */
2964 return iproute_default_modify(RTM_DELROUTE, table_id, ifindex, gateway);
2967 int __connman_inet_get_interface_ll_address(int index, int family,
2970 struct ifaddrs *ifaddr, *ifa;
2972 char name[IF_NAMESIZE];
2974 if (!if_indextoname(index, name))
2977 DBG("index %d interface %s", index, name);
2979 if (getifaddrs(&ifaddr) < 0) {
2981 DBG("Cannot get addresses err %d/%s", err, strerror(-err));
2985 for (ifa = ifaddr; ifa; ifa = ifa->ifa_next) {
2989 if (strncmp(ifa->ifa_name, name, IF_NAMESIZE) == 0 &&
2990 ifa->ifa_addr->sa_family == family) {
2991 if (family == AF_INET) {
2992 struct sockaddr_in *in4 = (struct sockaddr_in *)
2994 if (in4->sin_addr.s_addr == INADDR_ANY)
2996 if ((in4->sin_addr.s_addr & IN_CLASSB_NET) !=
2997 ((in_addr_t) 0xa9fe0000))
2999 memcpy(address, &in4->sin_addr,
3000 sizeof(struct in_addr));
3001 } else if (family == AF_INET6) {
3002 struct sockaddr_in6 *in6 =
3003 (struct sockaddr_in6 *)ifa->ifa_addr;
3004 if (memcmp(&in6->sin6_addr, &in6addr_any,
3005 sizeof(struct in6_addr)) == 0)
3007 if (!IN6_IS_ADDR_LINKLOCAL(&in6->sin6_addr))
3010 memcpy(address, &in6->sin6_addr,
3011 sizeof(struct in6_addr));
3023 freeifaddrs(ifaddr);
3027 int __connman_inet_get_address_netmask(int ifindex,
3028 struct sockaddr_in *address,
3029 struct sockaddr_in *netmask)
3031 int sk, ret = -EINVAL;
3034 DBG("index %d", ifindex);
3036 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
3040 memset(&ifr, 0, sizeof(ifr));
3041 ifr.ifr_ifindex = ifindex;
3043 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0)
3046 if (ioctl(sk, SIOCGIFNETMASK, &ifr) < 0)
3049 memcpy(netmask, (struct sockaddr_in *)&ifr.ifr_netmask,
3050 sizeof(struct sockaddr_in));
3052 if (ioctl(sk, SIOCGIFADDR, &ifr) < 0)
3055 memcpy(address, (struct sockaddr_in *)&ifr.ifr_addr,
3056 sizeof(struct sockaddr_in));
3064 static int get_nfs_server_ip(const char *cmdline_file, const char *pnp_file,
3065 struct in_addr *addr)
3069 char addrstr[INET_ADDRSTRLEN];
3070 struct in_addr taddr;
3071 GError *error = NULL;
3072 char *cmdline = NULL;
3075 char **pnpent = NULL;
3080 cmdline_file = "/proc/cmdline";
3082 pnp_file = "/proc/net/pnp";
3085 addr->s_addr = INADDR_NONE;
3087 if (!g_file_get_contents(cmdline_file, &cmdline, NULL, &error)) {
3088 connman_error("%s: Cannot read %s %s\n", __func__,
3089 cmdline_file, error->message);
3093 if (g_file_test(pnp_file, G_FILE_TEST_EXISTS)) {
3094 if (!g_file_get_contents(pnp_file, &pnp, NULL, &error)) {
3095 connman_error("%s: Cannot read %s %s\n", __func__,
3096 pnp_file, error->message);
3100 connman_error("%s: File %s doesn't exist\n", __func__, pnp_file);
3104 len = strlen(cmdline);
3109 /* remove newline */
3110 if (cmdline[len - 1] == '\n')
3111 cmdline[--len] = '\0';
3113 /* split in arguments (seperated by space) */
3114 args = g_strsplit(cmdline, " ", 0);
3116 connman_error("%s: Cannot split cmdline \"%s\"\n", __func__,
3121 /* split in entries (by newlines) */
3122 pnpent = g_strsplit(pnp, "\n", 0);
3124 connman_error("%s: Cannot split pnp at file \"%s\"\n", __func__,
3129 /* first find root argument */
3130 for (pp = args; *pp; pp++) {
3131 if (!strcmp(*pp, "root=/dev/nfs"))
3134 /* no rootnfs found */
3138 /* locate nfsroot argument */
3139 for (pp = args; *pp; pp++) {
3140 if (!strncmp(*pp, "nfsroot=", strlen("nfsroot=")))
3143 /* no nfsroot argument found */
3147 /* determine if nfsroot server is provided */
3148 nfsargs = strchr(*pp, '=');
3153 /* find whether serverip is present */
3154 s = strchr(nfsargs, ':');
3159 /* no serverip, use bootserver */
3160 for (pp = pnpent; *pp; pp++) {
3161 if (!strncmp(*pp, "bootserver ", strlen("bootserver ")))
3164 /* no bootserver found */
3167 s = *pp + strlen("bootserver ");
3171 /* copy to addr string buffer */
3172 if (len >= sizeof(addrstr)) {
3173 connman_error("%s: Bad server\n", __func__);
3176 memcpy(addrstr, s, len);
3177 addrstr[len] = '\0';
3179 err = inet_pton(AF_INET, addrstr, addr);
3181 connman_error("%s: Cannot convert to numeric addr \"%s\"\n",
3193 g_error_free(error);
3200 /* get interface out of which peer is reachable (IPv4 only) */
3201 static int get_peer_iface(struct in_addr *addr, char *ifname)
3203 struct ifaddrs *ifaddr, *ifa;
3204 struct sockaddr_in saddr, *ifsaddr;
3209 /* Obtain address(es) matching host/port */
3210 err = getifaddrs(&ifaddr);
3212 connman_error("%s: getifaddrs() failed %d (%s)\n",
3213 __func__, errno, strerror(errno));
3217 s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
3219 connman_error("%s: socket() failed %d (%s)\n",
3220 __func__, errno, strerror(errno));
3224 memset(&saddr, 0, sizeof(saddr));
3225 saddr.sin_family = AF_INET;
3226 saddr.sin_port = 0; /* any port */
3227 saddr.sin_addr = *addr;
3229 /* no need to bind, connect will select iface */
3230 err = connect(s, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
3232 connman_error("%s: connect() failed: %d (%s)\n",
3233 __func__, errno, strerror(errno));
3237 socklen = sizeof(saddr);
3238 err = getsockname(s, (struct sockaddr *)&saddr, &socklen);
3240 connman_error("%s: getsockname() failed: %d (%s)\n",
3241 __func__, errno, strerror(errno));
3246 for (ifa = ifaddr; ifa; ifa = ifa->ifa_next) {
3250 /* only IPv4 address */
3251 if (ifa->ifa_addr->sa_family != AF_INET)
3254 ifsaddr = (struct sockaddr_in *)ifa->ifa_addr;
3256 /* match address? */
3257 if (ifsaddr->sin_addr.s_addr == saddr.sin_addr.s_addr)
3264 strcpy(ifname, ifa->ifa_name);
3270 freeifaddrs(ifaddr);
3275 bool __connman_inet_isrootnfs_device(const char *devname)
3277 struct in_addr addr;
3278 char ifname[IFNAMSIZ];
3280 return get_nfs_server_ip(NULL, NULL, &addr) == 0 &&
3281 get_peer_iface(&addr, ifname) == 0 &&
3282 strcmp(devname, ifname) == 0;
3285 char **__connman_inet_get_pnp_nameservers(const char *pnp_file)
3290 GError *error = NULL;
3292 char **pnpent = NULL;
3293 char **nameservers = NULL;
3296 pnp_file = "/proc/net/pnp";
3298 if (!g_file_get_contents(pnp_file, &pnp, NULL, &error)) {
3299 connman_error("%s: Cannot read %s %s\n", __func__,
3300 pnp_file, error->message);
3304 /* split in entries (by newlines) */
3305 pnpent = g_strsplit(pnp, "\n", 0);
3307 connman_error("%s: Cannot split pnp \"%s\"\n", __func__,
3313 * Perform two passes to retreive a char ** array of
3314 * nameservers that are not 0.0.0.0
3316 * The first pass counts them, the second fills in the
3321 for (pass = 1; pass <= 2; pass++) {
3323 /* at the start of the second pass allocate */
3325 nameservers = g_new(char *, count + 1);
3328 for (pp = pnpent; *pp; pp++) {
3329 /* match 'nameserver ' at the start of each line */
3330 if (strncmp(*pp, "nameserver ", strlen("nameserver ")))
3333 /* compare it against 0.0.0.0 */
3334 s = *pp + strlen("nameserver ");
3335 if (!strcmp(s, "0.0.0.0"))
3338 /* on second pass fill in array */
3340 nameservers[count] = g_strdup(s);
3344 /* no nameservers? */
3348 /* and terminate char ** array with NULL */
3350 nameservers[count] = NULL;
3358 g_error_free(error);