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
34 #include <sys/ioctl.h>
35 #include <sys/socket.h>
36 #include <linux/sockios.h>
38 #include <arpa/inet.h>
39 #include <net/route.h>
40 #include <net/ethernet.h>
42 #include <net/if_arp.h>
43 #include <netinet/icmp6.h>
45 #include <linux/if_tun.h>
48 #include <linux/fib_rules.h>
51 #include <gdhcp/gdhcp.h>
53 #define NLMSG_TAIL(nmsg) \
54 ((struct rtattr *) (((uint8_t*) (nmsg)) + \
55 NLMSG_ALIGN((nmsg)->nlmsg_len)))
57 int __connman_inet_rtnl_addattr_l(struct nlmsghdr *n, size_t max_length,
58 int type, const void *data, size_t data_length)
63 length = RTA_LENGTH(data_length);
65 if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(length) > max_length)
70 rta->rta_len = length;
71 memcpy(RTA_DATA(rta), data, data_length);
72 n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(length);
77 int __connman_inet_modify_address(int cmd, int flags,
78 int index, int family,
81 unsigned char prefixlen,
82 const char *broadcast)
84 uint8_t request[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
85 NLMSG_ALIGN(sizeof(struct ifaddrmsg)) +
86 RTA_LENGTH(sizeof(struct in6_addr)) +
87 RTA_LENGTH(sizeof(struct in6_addr))];
89 struct nlmsghdr *header;
90 struct sockaddr_nl nl_addr;
91 struct ifaddrmsg *ifaddrmsg;
92 struct in6_addr ipv6_addr;
93 struct in_addr ipv4_addr, ipv4_dest, ipv4_bcast;
96 DBG("cmd %#x flags %#x index %d family %d address %s peer %s "
97 "prefixlen %hhu broadcast %s", cmd, flags, index, family,
98 address, peer, prefixlen, broadcast);
103 if (family != AF_INET && family != AF_INET6)
106 memset(&request, 0, sizeof(request));
108 header = (struct nlmsghdr *)request;
109 header->nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg));
110 header->nlmsg_type = cmd;
111 header->nlmsg_flags = NLM_F_REQUEST | flags;
112 header->nlmsg_seq = 1;
114 ifaddrmsg = NLMSG_DATA(header);
115 ifaddrmsg->ifa_family = family;
116 ifaddrmsg->ifa_prefixlen = prefixlen;
117 ifaddrmsg->ifa_flags = IFA_F_PERMANENT;
118 ifaddrmsg->ifa_scope = RT_SCOPE_UNIVERSE;
119 ifaddrmsg->ifa_index = index;
121 if (family == AF_INET) {
122 if (inet_pton(AF_INET, address, &ipv4_addr) < 1)
126 inet_pton(AF_INET, broadcast, &ipv4_bcast);
128 ipv4_bcast.s_addr = ipv4_addr.s_addr |
129 htonl(0xfffffffflu >> prefixlen);
132 if (inet_pton(AF_INET, peer, &ipv4_dest) < 1)
135 err = __connman_inet_rtnl_addattr_l(header,
144 err = __connman_inet_rtnl_addattr_l(header,
152 err = __connman_inet_rtnl_addattr_l(header,
160 } else if (family == AF_INET6) {
161 if (inet_pton(AF_INET6, address, &ipv6_addr) < 1)
164 err = __connman_inet_rtnl_addattr_l(header,
173 sk = socket(AF_NETLINK, SOCK_DGRAM | SOCK_CLOEXEC, NETLINK_ROUTE);
177 memset(&nl_addr, 0, sizeof(nl_addr));
178 nl_addr.nl_family = AF_NETLINK;
180 if ((err = sendto(sk, request, header->nlmsg_len, 0,
181 (struct sockaddr *) &nl_addr, sizeof(nl_addr))) < 0)
192 #if defined TIZEN_EXT_WIFI_MESH
193 char *connman_inet_ifaddr(const char *name)
196 struct ether_addr eth;
200 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
204 strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
206 err = ioctl(sk, SIOCGIFHWADDR, &ifr);
216 memcpy(ð, &ifr.ifr_hwaddr.sa_data, sizeof(eth));
217 snprintf(str, 13, "%02x%02x%02x%02x%02x%02x",
218 eth.ether_addr_octet[0],
219 eth.ether_addr_octet[1],
220 eth.ether_addr_octet[2],
221 eth.ether_addr_octet[3],
222 eth.ether_addr_octet[4],
223 eth.ether_addr_octet[5]);
228 char *connman_inet_ifname2addr(const char *name)
231 struct ether_addr eth;
235 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
239 strncpy(ifr.ifr_name, name, IFNAMSIZ-1);
241 err = ioctl(sk, SIOCGIFHWADDR, &ifr);
251 memcpy(ð, &ifr.ifr_hwaddr.sa_data, sizeof(eth));
252 snprintf(str, 18, "%02x:%02x:%02x:%02x:%02x:%02x",
253 eth.ether_addr_octet[0],
254 eth.ether_addr_octet[1],
255 eth.ether_addr_octet[2],
256 eth.ether_addr_octet[3],
257 eth.ether_addr_octet[4],
258 eth.ether_addr_octet[5]);
264 bool __connman_inet_is_any_addr(const char *address, int family)
267 struct addrinfo hints;
268 struct addrinfo *result = NULL;
269 struct sockaddr_in6 *in6 = NULL;
270 struct sockaddr_in *in4 = NULL;
272 if (!address || !*address)
275 memset(&hints, 0, sizeof(struct addrinfo));
277 hints.ai_family = family;
279 if (getaddrinfo(address, NULL, &hints, &result))
283 if (result->ai_family == AF_INET6) {
284 in6 = (struct sockaddr_in6*)result->ai_addr;
285 ret = IN6_IS_ADDR_UNSPECIFIED(&in6->sin6_addr);
286 } else if (result->ai_family == AF_INET) {
287 in4 = (struct sockaddr_in*)result->ai_addr;
288 ret = in4->sin_addr.s_addr == INADDR_ANY;
291 freeaddrinfo(result);
298 int connman_inet_ifindex(const char *name)
306 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
310 memset(&ifr, 0, sizeof(ifr));
311 strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name) - 1);
313 err = ioctl(sk, SIOCGIFINDEX, &ifr);
320 return ifr.ifr_ifindex;
323 char *connman_inet_ifname(int index)
331 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
335 memset(&ifr, 0, sizeof(ifr));
336 ifr.ifr_ifindex = index;
338 err = ioctl(sk, SIOCGIFNAME, &ifr);
345 return g_strdup(ifr.ifr_name);
348 int connman_inet_ifup(int index)
353 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
357 memset(&ifr, 0, sizeof(ifr));
358 ifr.ifr_ifindex = index;
360 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
365 if (ioctl(sk, SIOCGIFFLAGS, &ifr) < 0) {
370 if (ifr.ifr_flags & IFF_UP) {
375 ifr.ifr_flags |= (IFF_UP|IFF_DYNAMIC);
377 if (ioctl(sk, SIOCSIFFLAGS, &ifr) < 0) {
390 int connman_inet_ifdown(int index)
392 struct ifreq ifr, addr_ifr;
393 struct sockaddr_in *addr;
396 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
400 memset(&ifr, 0, sizeof(ifr));
401 ifr.ifr_ifindex = index;
403 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
408 if (ioctl(sk, SIOCGIFFLAGS, &ifr) < 0) {
413 memset(&addr_ifr, 0, sizeof(addr_ifr));
414 memcpy(&addr_ifr.ifr_name, &ifr.ifr_name, sizeof(ifr.ifr_name) - 1);
415 addr = (struct sockaddr_in *)&addr_ifr.ifr_addr;
416 addr->sin_family = AF_INET;
417 if (ioctl(sk, SIOCSIFADDR, &addr_ifr) < 0)
418 connman_warn("Could not clear IPv4 address index %d", index);
420 if (!(ifr.ifr_flags & IFF_UP)) {
425 ifr.ifr_flags = (ifr.ifr_flags & ~IFF_UP) | IFF_DYNAMIC;
427 if (ioctl(sk, SIOCSIFFLAGS, &ifr) < 0)
438 #if defined TIZEN_EXT
439 void connman_inet_update_device_ident(struct connman_device *device)
442 enum connman_device_type type;
443 char *ident = NULL, *addr = NULL;
445 index = connman_device_get_index(device);
446 type = connman_device_get_type(device);
449 case CONNMAN_DEVICE_TYPE_UNKNOWN:
451 case CONNMAN_DEVICE_TYPE_ETHERNET:
452 case CONNMAN_DEVICE_TYPE_GADGET:
453 case CONNMAN_DEVICE_TYPE_WIFI:
454 addr = index2addr(index);
455 ident = index2ident(index, NULL);
457 case CONNMAN_DEVICE_TYPE_CELLULAR:
458 ident = index2ident(index, NULL);
460 case CONNMAN_DEVICE_TYPE_BLUETOOTH:
461 case CONNMAN_DEVICE_TYPE_GPS:
462 case CONNMAN_DEVICE_TYPE_VENDOR:
467 connman_device_set_ident(device, ident);
472 connman_device_set_string(device, "Address", addr);
478 bool connman_inet_is_ifup(int index)
484 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
486 connman_warn("Failed to open socket");
490 memset(&ifr, 0, sizeof(ifr));
491 ifr.ifr_ifindex = index;
493 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
494 connman_warn("Failed to get interface name for interface %d", index);
498 if (ioctl(sk, SIOCGIFFLAGS, &ifr) < 0) {
499 connman_warn("Failed to get interface flags for index %d", index);
503 if (ifr.ifr_flags & IFF_UP)
513 struct in6_addr ifr6_addr;
514 __u32 ifr6_prefixlen;
515 unsigned int ifr6_ifindex;
518 int connman_inet_set_ipv6_address(int index,
519 struct connman_ipaddress *ipaddress)
522 unsigned char prefix_len;
525 if (!ipaddress->local)
528 prefix_len = ipaddress->prefixlen;
529 address = ipaddress->local;
531 DBG("index %d address %s prefix_len %d", index, address, prefix_len);
533 err = __connman_inet_modify_address(RTM_NEWADDR,
534 NLM_F_REPLACE | NLM_F_ACK, index, AF_INET6,
535 address, NULL, prefix_len, NULL);
537 connman_error("%s: %s", __func__, strerror(-err));
544 int connman_inet_set_address(int index, struct connman_ipaddress *ipaddress)
547 unsigned char prefix_len;
548 const char *address, *broadcast, *peer;
550 if (!ipaddress->local)
553 prefix_len = ipaddress->prefixlen;
554 address = ipaddress->local;
555 broadcast = ipaddress->broadcast;
556 peer = ipaddress->peer;
558 DBG("index %d address %s prefix_len %d", index, address, prefix_len);
560 err = __connman_inet_modify_address(RTM_NEWADDR,
561 NLM_F_REPLACE | NLM_F_ACK, index, AF_INET,
562 address, peer, prefix_len, broadcast);
564 connman_error("%s: %s", __func__, strerror(-err));
571 int connman_inet_clear_ipv6_address(int index, const char *address,
576 DBG("index %d address %s prefix_len %d", index, address, prefix_len);
581 err = __connman_inet_modify_address(RTM_DELADDR, 0, index, AF_INET6,
582 address, NULL, prefix_len, NULL);
584 connman_error("%s: %s", __func__, strerror(-err));
591 int connman_inet_clear_address(int index, struct connman_ipaddress *ipaddress)
594 unsigned char prefix_len;
595 const char *address, *broadcast, *peer;
597 prefix_len = ipaddress->prefixlen;
598 address = ipaddress->local;
599 broadcast = ipaddress->broadcast;
600 peer = ipaddress->peer;
602 DBG("index %d address %s prefix_len %d peer %s broadcast %s", index,
603 address, prefix_len, peer, broadcast);
608 err = __connman_inet_modify_address(RTM_DELADDR, 0, index, AF_INET,
609 address, peer, prefix_len, broadcast);
611 connman_error("%s: %s", __func__, strerror(-err));
618 int connman_inet_add_host_route(int index, const char *host,
621 return connman_inet_add_network_route(index, host, gateway, NULL);
624 int connman_inet_del_host_route(int index, const char *host)
626 return connman_inet_del_network_route(index, host);
629 int connman_inet_add_network_route(int index, const char *host,
635 struct sockaddr_in addr;
638 DBG("index %d host %s gateway %s netmask %s", index,
639 host, gateway, netmask);
641 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
647 memset(&ifr, 0, sizeof(ifr));
648 ifr.ifr_ifindex = index;
650 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
656 DBG("ifname %s", ifr.ifr_name);
658 memset(&rt, 0, sizeof(rt));
659 rt.rt_flags = RTF_UP;
662 * Set RTF_GATEWAY only when gateway is set and the gateway IP address
663 * is not IPv4 any address (0.0.0.0). If the given gateway IP address is
664 * any address adding of route will fail when RTF_GATEWAY set. Passing
665 * gateway as NULL or INADDR_ANY should have the same effect. Setting
666 * the gateway address later to the struct is not affected by this,
667 * since given IPv4 any address (0.0.0.0) equals the value set with
670 if (gateway && !__connman_inet_is_any_addr(gateway, AF_INET))
671 rt.rt_flags |= RTF_GATEWAY;
673 rt.rt_flags |= RTF_HOST;
675 memset(&addr, 0, sizeof(addr));
676 addr.sin_family = AF_INET;
677 addr.sin_addr.s_addr = inet_addr(host);
678 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
680 memset(&addr, 0, sizeof(addr));
681 addr.sin_family = AF_INET;
683 addr.sin_addr.s_addr = inet_addr(gateway);
685 addr.sin_addr.s_addr = INADDR_ANY;
686 memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
688 memset(&addr, 0, sizeof(addr));
689 addr.sin_family = AF_INET;
690 addr.sin_addr.s_addr = INADDR_ANY;
692 addr.sin_addr.s_addr = inet_addr(netmask);
694 addr.sin_addr.s_addr = INADDR_ANY;
695 memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
697 rt.rt_dev = ifr.ifr_name;
699 if (ioctl(sk, SIOCADDRT, &rt) < 0 && errno != EEXIST)
706 connman_error("Adding host route failed (%s)",
712 int connman_inet_del_network_route(int index, const char *host)
716 struct sockaddr_in addr;
719 DBG("index %d host %s", index, host);
721 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
727 memset(&ifr, 0, sizeof(ifr));
728 ifr.ifr_ifindex = index;
730 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
736 DBG("ifname %s", ifr.ifr_name);
738 memset(&rt, 0, sizeof(rt));
739 rt.rt_flags = RTF_UP | RTF_HOST;
741 memset(&addr, 0, sizeof(addr));
742 addr.sin_family = AF_INET;
743 addr.sin_addr.s_addr = inet_addr(host);
744 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
746 rt.rt_dev = ifr.ifr_name;
748 if (ioctl(sk, SIOCDELRT, &rt) < 0 && errno != ESRCH)
755 connman_error("Deleting host route failed (%s)",
761 int connman_inet_del_ipv6_network_route(int index, const char *host,
762 unsigned char prefix_len)
767 DBG("index %d host %s", index, host);
772 memset(&rt, 0, sizeof(rt));
774 rt.rtmsg_dst_len = prefix_len;
776 if (inet_pton(AF_INET6, host, &rt.rtmsg_dst) < 0) {
781 rt.rtmsg_flags = RTF_UP | RTF_HOST;
784 rt.rtmsg_ifindex = index;
786 sk = socket(AF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
792 if (ioctl(sk, SIOCDELRT, &rt) < 0 && errno != ESRCH)
799 connman_error("Del IPv6 host route error (%s)",
805 int connman_inet_del_ipv6_host_route(int index, const char *host)
807 return connman_inet_del_ipv6_network_route(index, host, 128);
810 int connman_inet_add_ipv6_network_route(int index, const char *host,
812 unsigned char prefix_len)
817 DBG("index %d host %s gateway %s", index, host, gateway);
822 memset(&rt, 0, sizeof(rt));
824 rt.rtmsg_dst_len = prefix_len;
826 if (inet_pton(AF_INET6, host, &rt.rtmsg_dst) < 0) {
831 rt.rtmsg_flags = RTF_UP | RTF_HOST;
834 * Set RTF_GATEWAY only when gateway is set, the gateway IP address is
835 * not IPv6 any address (e.g., ::) and the address is valid (conversion
836 * succeeds). If the given gateway IP address is any address then
837 * adding of route will fail when RTF_GATEWAY set. Passing gateway as
838 * NULL or IPv6 any address should have the same effect.
841 if (gateway && !__connman_inet_is_any_addr(gateway, AF_INET6) &&
842 inet_pton(AF_INET6, gateway, &rt.rtmsg_gateway) > 0)
843 rt.rtmsg_flags |= RTF_GATEWAY;
846 rt.rtmsg_ifindex = index;
848 sk = socket(AF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
854 if (ioctl(sk, SIOCADDRT, &rt) < 0 && errno != EEXIST)
861 connman_error("Set IPv6 host route error (%s)",
867 int connman_inet_add_ipv6_host_route(int index, const char *host,
870 return connman_inet_add_ipv6_network_route(index, host, gateway, 128);
873 int connman_inet_clear_ipv6_gateway_address(int index, const char *gateway)
878 DBG("index %d gateway %s", index, gateway);
883 memset(&rt, 0, sizeof(rt));
885 if (inet_pton(AF_INET6, gateway, &rt.rtmsg_gateway) < 0) {
890 rt.rtmsg_flags = RTF_UP | RTF_GATEWAY;
892 rt.rtmsg_dst_len = 0;
893 rt.rtmsg_ifindex = index;
895 sk = socket(AF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
901 if (ioctl(sk, SIOCDELRT, &rt) < 0 && errno != ESRCH)
908 connman_error("Clear default IPv6 gateway error (%s)",
914 int connman_inet_set_gateway_interface(int index)
918 struct sockaddr_in addr;
921 DBG("index %d", index);
923 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
929 memset(&ifr, 0, sizeof(ifr));
930 ifr.ifr_ifindex = index;
932 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
938 DBG("ifname %s", ifr.ifr_name);
940 memset(&rt, 0, sizeof(rt));
941 rt.rt_flags = RTF_UP;
943 memset(&addr, 0, sizeof(addr));
944 addr.sin_family = AF_INET;
945 addr.sin_addr.s_addr = INADDR_ANY;
947 memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
948 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
949 memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
951 rt.rt_dev = ifr.ifr_name;
953 if (ioctl(sk, SIOCADDRT, &rt) < 0 && errno != EEXIST)
960 connman_error("Setting default interface route failed (%s)",
966 int connman_inet_set_ipv6_gateway_interface(int index)
970 struct sockaddr_in6 addr;
971 const struct in6_addr any = IN6ADDR_ANY_INIT;
974 DBG("index %d", index);
976 sk = socket(PF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
982 memset(&ifr, 0, sizeof(ifr));
983 ifr.ifr_ifindex = index;
985 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
991 DBG("ifname %s", ifr.ifr_name);
993 memset(&rt, 0, sizeof(rt));
994 rt.rt_flags = RTF_UP;
996 memset(&addr, 0, sizeof(addr));
997 addr.sin6_family = AF_INET6;
998 addr.sin6_addr = any;
1000 memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
1001 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
1002 memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
1004 rt.rt_dev = ifr.ifr_name;
1006 if (ioctl(sk, SIOCADDRT, &rt) < 0 && errno != EEXIST)
1013 connman_error("Setting default interface route failed (%s)",
1019 int connman_inet_clear_gateway_address(int index, const char *gateway)
1023 struct sockaddr_in addr;
1026 DBG("index %d gateway %s", index, gateway);
1028 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1034 memset(&ifr, 0, sizeof(ifr));
1035 ifr.ifr_ifindex = index;
1037 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
1043 DBG("ifname %s", ifr.ifr_name);
1045 memset(&rt, 0, sizeof(rt));
1046 rt.rt_flags = RTF_UP | RTF_GATEWAY;
1048 memset(&addr, 0, sizeof(addr));
1049 addr.sin_family = AF_INET;
1050 addr.sin_addr.s_addr = INADDR_ANY;
1051 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
1053 memset(&addr, 0, sizeof(addr));
1054 addr.sin_family = AF_INET;
1055 addr.sin_addr.s_addr = inet_addr(gateway);
1056 memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
1058 memset(&addr, 0, sizeof(addr));
1059 addr.sin_family = AF_INET;
1060 addr.sin_addr.s_addr = INADDR_ANY;
1061 memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
1063 if (ioctl(sk, SIOCDELRT, &rt) < 0 && errno != ESRCH)
1070 connman_error("Removing default gateway route failed (%s)",
1076 int connman_inet_clear_gateway_interface(int index)
1080 struct sockaddr_in addr;
1083 DBG("index %d", index);
1085 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1091 memset(&ifr, 0, sizeof(ifr));
1092 ifr.ifr_ifindex = index;
1094 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
1100 DBG("ifname %s", ifr.ifr_name);
1102 memset(&rt, 0, sizeof(rt));
1103 rt.rt_flags = RTF_UP;
1105 memset(&addr, 0, sizeof(addr));
1106 addr.sin_family = AF_INET;
1107 addr.sin_addr.s_addr = INADDR_ANY;
1109 memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
1110 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
1111 memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
1113 rt.rt_dev = ifr.ifr_name;
1115 if (ioctl(sk, SIOCDELRT, &rt) < 0 && errno != ESRCH)
1122 connman_error("Removing default interface route failed (%s)",
1128 int connman_inet_clear_ipv6_gateway_interface(int index)
1132 struct sockaddr_in6 addr;
1133 const struct in6_addr any = IN6ADDR_ANY_INIT;
1136 DBG("index %d", index);
1138 sk = socket(PF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1144 memset(&ifr, 0, sizeof(ifr));
1145 ifr.ifr_ifindex = index;
1147 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
1153 DBG("ifname %s", ifr.ifr_name);
1155 memset(&rt, 0, sizeof(rt));
1156 rt.rt_flags = RTF_UP;
1158 memset(&addr, 0, sizeof(addr));
1159 addr.sin6_family = AF_INET6;
1160 addr.sin6_addr = any;
1162 memcpy(&rt.rt_genmask, &addr, sizeof(rt.rt_genmask));
1163 memcpy(&rt.rt_dst, &addr, sizeof(rt.rt_dst));
1164 memcpy(&rt.rt_gateway, &addr, sizeof(rt.rt_gateway));
1166 rt.rt_dev = ifr.ifr_name;
1168 if (ioctl(sk, SIOCDELRT, &rt) < 0 && errno != ESRCH)
1175 connman_error("Removing default interface route failed (%s)",
1181 bool connman_inet_compare_subnet(int index, const char *host)
1184 struct in_addr _host_addr;
1185 in_addr_t host_addr, netmask_addr, if_addr;
1186 struct sockaddr_in *netmask, *addr;
1189 DBG("host %s", host);
1194 if (inet_aton(host, &_host_addr) == 0)
1196 host_addr = _host_addr.s_addr;
1198 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1202 memset(&ifr, 0, sizeof(ifr));
1203 ifr.ifr_ifindex = index;
1205 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
1210 if (ioctl(sk, SIOCGIFNETMASK, &ifr) < 0) {
1215 netmask = (struct sockaddr_in *)&ifr.ifr_netmask;
1216 netmask_addr = netmask->sin_addr.s_addr;
1218 if (ioctl(sk, SIOCGIFADDR, &ifr) < 0) {
1225 addr = (struct sockaddr_in *)&ifr.ifr_addr;
1226 if_addr = addr->sin_addr.s_addr;
1228 return ((if_addr & netmask_addr) == (host_addr & netmask_addr));
1231 static bool mem_mask_equal(const void *a, const void *b,
1232 const void *mask, size_t n)
1234 const unsigned char *addr1 = a;
1235 const unsigned char *addr2 = b;
1236 const unsigned char *bitmask = mask;
1239 for (i = 0; i < n; i++) {
1240 if ((addr1[i] ^ addr2[i]) & bitmask[i])
1247 bool connman_inet_compare_ipv6_subnet(int index, const char *host)
1249 struct ifaddrs *ifaddr, *ifa;
1251 char name[IF_NAMESIZE];
1252 struct in6_addr haddr;
1254 if (inet_pton(AF_INET6, host, &haddr) <= 0)
1257 if (!if_indextoname(index, name))
1260 DBG("index %d interface %s", index, name);
1262 if (getifaddrs(&ifaddr) < 0) {
1263 DBG("Cannot get addresses err %d/%s", errno, strerror(errno));
1267 for (ifa = ifaddr; ifa; ifa = ifa->ifa_next) {
1268 struct sockaddr_in6 *iaddr;
1269 struct sockaddr_in6 *imask;
1274 if (strncmp(ifa->ifa_name, name, IF_NAMESIZE) != 0 ||
1275 ifa->ifa_addr->sa_family != AF_INET6)
1278 iaddr = (struct sockaddr_in6 *)ifa->ifa_addr;
1279 imask = (struct sockaddr_in6 *)ifa->ifa_netmask;
1281 rv = mem_mask_equal(&iaddr->sin6_addr, &haddr,
1288 freeifaddrs(ifaddr);
1292 int connman_inet_remove_from_bridge(int index, const char *bridge)
1300 sk = socket(AF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0);
1306 memset(&ifr, 0, sizeof(ifr));
1307 strncpy(ifr.ifr_name, bridge, sizeof(ifr.ifr_name) - 1);
1308 ifr.ifr_ifindex = index;
1310 if (ioctl(sk, SIOCBRDELIF, &ifr) < 0)
1317 connman_error("Remove interface from bridge error %s",
1323 int connman_inet_add_to_bridge(int index, const char *bridge)
1331 sk = socket(AF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0);
1337 memset(&ifr, 0, sizeof(ifr));
1338 strncpy(ifr.ifr_name, bridge, sizeof(ifr.ifr_name) - 1);
1339 ifr.ifr_ifindex = index;
1341 if (ioctl(sk, SIOCBRADDIF, &ifr) < 0)
1348 connman_error("Add interface to bridge error %s",
1354 int connman_inet_set_mtu(int index, int mtu)
1359 sk = socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1363 memset(&ifr, 0, sizeof(ifr));
1364 ifr.ifr_ifindex = index;
1366 err = ioctl(sk, SIOCGIFNAME, &ifr);
1369 err = ioctl(sk, SIOCSIFMTU, &ifr);
1376 int connman_inet_setup_tunnel(char *tunnel, int mtu)
1386 sk = socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1390 index = if_nametoindex(tunnel);
1392 err = connman_inet_set_mtu(index, mtu);
1396 memset(&ifr, 0, sizeof(ifr));
1397 strncpy(ifr.ifr_name, tunnel, sizeof(ifr.ifr_name) - 1);
1398 err = ioctl(sk, SIOCGIFFLAGS, &ifr);
1405 if ((ifr.ifr_flags ^ flags) & mask) {
1406 ifr.ifr_flags &= ~mask;
1407 ifr.ifr_flags |= mask & flags;
1408 err = ioctl(sk, SIOCSIFFLAGS, &ifr);
1410 connman_error("SIOCSIFFLAGS failed: %s",
1419 int connman_inet_create_tunnel(char **iface)
1424 fd = open("/dev/net/tun", O_RDWR | O_CLOEXEC);
1427 connman_error("Failed to open /dev/net/tun: %s",
1432 memset(&ifr, 0, sizeof(ifr));
1433 ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
1435 for (i = 0; i < 256; i++) {
1436 sprintf(ifr.ifr_name, "tun%d", i);
1438 if (!ioctl(fd, TUNSETIFF, (void *)&ifr))
1443 connman_error("Failed to find available tun device");
1448 *iface = g_strdup(ifr.ifr_name);
1454 * This callback struct is used when sending router and neighbor
1455 * solicitation and advertisement messages.
1458 GIOChannel *channel;
1460 struct sockaddr_in6 addr;
1466 #define CMSG_BUF_LEN 512
1467 #define IN6ADDR_ALL_NODES_MC_INIT \
1468 { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x1 } } } /* ff02::1 */
1469 #define IN6ADDR_ALL_ROUTERS_MC_INIT \
1470 { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x2 } } } /* ff02::2 */
1472 static const struct in6_addr in6addr_all_nodes_mc = IN6ADDR_ALL_NODES_MC_INIT;
1473 static const struct in6_addr in6addr_all_routers_mc =
1474 IN6ADDR_ALL_ROUTERS_MC_INIT;
1476 static void xs_cleanup(struct xs_cb_data *data)
1478 if (data->channel) {
1479 g_io_channel_shutdown(data->channel, TRUE, NULL);
1480 g_io_channel_unref(data->channel);
1481 data->channel = NULL;
1484 if (data->timeout > 0)
1485 g_source_remove(data->timeout);
1487 if (data->watch_id > 0)
1488 g_source_remove(data->watch_id);
1493 static gboolean rs_timeout_cb(gpointer user_data)
1495 struct xs_cb_data *data = user_data;
1497 DBG("user data %p", user_data);
1502 if (data->callback) {
1503 __connman_inet_rs_cb_t cb = data->callback;
1504 cb(NULL, 0, data->user_data);
1512 static int icmpv6_recv(int fd, struct xs_cb_data *data)
1516 unsigned char chdr[CMSG_BUF_LEN];
1517 unsigned char buf[1540];
1518 struct nd_router_advert *hdr;
1519 struct sockaddr_in6 saddr;
1521 __connman_inet_rs_cb_t cb = data->callback;
1525 iov.iov_len = sizeof(buf);
1528 mhdr.msg_name = (void *)&saddr;
1529 mhdr.msg_namelen = sizeof(struct sockaddr_in6);
1531 mhdr.msg_iov = &iov;
1532 mhdr.msg_iovlen = 1;
1533 mhdr.msg_control = (void *)chdr;
1534 mhdr.msg_controllen = CMSG_BUF_LEN;
1536 len = recvmsg(fd, &mhdr, 0);
1538 cb(NULL, 0, data->user_data);
1542 #if defined TIZEN_EXT
1543 /* Set Received Source Address from router as IPv6 Gateway Address */
1544 char src_addr[INET6_ADDRSTRLEN];
1545 if(inet_ntop(AF_INET6, &(saddr.sin6_addr), src_addr, INET6_ADDRSTRLEN)
1549 DBG("Received Source Address %s from router", src_addr);
1551 /* icmpv6_recv() function can be called in two scenarios :
1552 * 1. When __connman_inet_ipv6_send_rs() is called from check_dhcpv6()
1553 * 2. When __connman_inet_ipv6_send_rs() is called from
1554 * __connman_6to4_probe()
1555 * In the second case it is not required to set DHCPv6 Gateway Address
1556 * as DHCPv6 was not started and network structure was not passed as
1557 * user_data. If it is tried to add Source Address as Gateway Address
1558 * then it will lead to crash because of user_data being ip_address
1559 * instead of network structure. So Adding Gateway Address in case 1st
1562 char *address = data->user_data;
1564 unsigned char buffer[sizeof(struct in6_addr)] = {0, };
1565 /* Checking if user_data is an ip_address */
1566 err = inet_pton(AF_INET, address, buffer);
1567 /* Setting Received Source Address from
1568 * router as Gateway Address */
1570 __connman_network_set_auto_ipv6_gateway(src_addr, data->user_data);
1572 hdr = (struct nd_router_advert *)buf;
1573 DBG("code %d len %zd hdr %zd", hdr->nd_ra_code, len,
1574 sizeof(struct nd_router_advert));
1575 if (hdr->nd_ra_code != 0)
1578 cb(hdr, len, data->user_data);
1583 static gboolean icmpv6_event(GIOChannel *chan, GIOCondition cond, gpointer data)
1586 struct xs_cb_data *xs_data = data;
1590 if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
1593 fd = g_io_channel_unix_get_fd(chan);
1594 ret = icmpv6_recv(fd, xs_data);
1599 xs_cleanup(xs_data);
1603 /* Adapted from RFC 1071 "C" Implementation Example */
1604 static uint16_t csum(const void *phdr, const void *data, socklen_t datalen,
1605 const void *extra_data, socklen_t extra_datalen)
1607 register unsigned long sum = 0;
1612 /* caller must make sure datalen is even */
1614 addr = (uint16_t *)phdr;
1615 for (i = 0; i < 20; i++)
1619 addr = (uint16_t *)data;
1627 count = extra_datalen;
1628 addr = (uint16_t *)extra_data;
1637 sum = (sum & 0xffff) + (sum >> 16);
1639 return (uint16_t)~sum;
1642 static int ndisc_send_unspec(int type, int oif, const struct in6_addr *dest,
1643 const struct in6_addr *source,
1644 unsigned char *buf, size_t len, uint16_t lifetime)
1647 struct in6_addr src;
1648 struct in6_addr dst;
1650 uint8_t reserved[3];
1657 struct icmp6_hdr icmp;
1658 struct nd_neighbor_solicit ns;
1659 struct nd_router_solicit rs;
1660 struct nd_router_advert ra;
1665 struct cmsghdr *cmsg;
1666 struct in6_pktinfo *pinfo;
1667 struct sockaddr_in6 dst, src;
1668 char cbuf[CMSG_SPACE(sizeof(*pinfo))];
1669 struct iovec iov[2];
1670 int fd, datalen, ret, iovlen = 1;
1671 #if defined TIZEN_EXT
1677 fd = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC, IPPROTO_RAW);
1681 memset(&frame, 0, sizeof(frame));
1682 memset(&dst, 0, sizeof(dst));
1684 if (type == ND_ROUTER_SOLICIT)
1685 datalen = sizeof(frame.i.rs); /* 8, csum() safe */
1686 else if (type == ND_ROUTER_ADVERT) {
1687 datalen = sizeof(frame.i.ra); /* 16, csum() safe */
1688 frame.i.ra.nd_ra_router_lifetime = htons(lifetime);
1689 } else if (type == ND_NEIGHBOR_SOLICIT) {
1690 datalen = sizeof(frame.i.ns); /* 24, csum() safe */
1691 memcpy(&frame.i.ns.nd_ns_target, buf, sizeof(struct in6_addr));
1697 dst.sin6_addr = *dest;
1700 src.sin6_addr = *source;
1702 src.sin6_addr = in6addr_any;
1704 /* Fill in the IPv6 header */
1705 frame.ip.ip6_vfc = 0x60;
1706 frame.ip.ip6_plen = htons(datalen + len);
1707 frame.ip.ip6_nxt = IPPROTO_ICMPV6;
1708 frame.ip.ip6_hlim = 255;
1709 frame.ip.ip6_dst = dst.sin6_addr;
1710 frame.ip.ip6_src = src.sin6_addr;
1711 /* all other fields are already set to zero */
1713 /* Prepare pseudo header for csum */
1714 memset(&phdr, 0, sizeof(phdr));
1715 phdr.dst = dst.sin6_addr;
1716 phdr.src = src.sin6_addr;
1717 phdr.plen = htonl(datalen + len);
1718 phdr.nxt = IPPROTO_ICMPV6;
1720 /* Fill in remaining ICMP header fields */
1721 frame.i.icmp.icmp6_type = type;
1722 frame.i.icmp.icmp6_cksum = csum(&phdr, &frame.i, datalen, buf, len);
1724 iov[0].iov_base = &frame;
1725 iov[0].iov_len = sizeof(frame.ip) + datalen;
1728 iov[1].iov_base = buf;
1729 iov[1].iov_len = len;
1733 dst.sin6_family = AF_INET6;
1734 msgh.msg_name = &dst;
1735 msgh.msg_namelen = sizeof(dst);
1737 msgh.msg_iovlen = iovlen;
1740 memset(cbuf, 0, CMSG_SPACE(sizeof(*pinfo)));
1741 cmsg = (struct cmsghdr *)cbuf;
1742 pinfo = (struct in6_pktinfo *)CMSG_DATA(cmsg);
1743 pinfo->ipi6_ifindex = oif;
1745 cmsg->cmsg_len = CMSG_LEN(sizeof(*pinfo));
1746 cmsg->cmsg_level = IPPROTO_IPV6;
1747 cmsg->cmsg_type = IPV6_PKTINFO;
1748 msgh.msg_control = cmsg;
1749 msgh.msg_controllen = cmsg->cmsg_len;
1751 ret = sendmsg(fd, &msgh, 0);
1752 #if defined TIZEN_EXT
1753 DBG("sendmsg errno: %d/%s", errno, strerror_r(errno, ebuf, sizeof(ebuf)));
1760 static inline void ipv6_addr_set(struct in6_addr *addr,
1761 uint32_t w1, uint32_t w2,
1762 uint32_t w3, uint32_t w4)
1764 addr->s6_addr32[0] = w1;
1765 addr->s6_addr32[1] = w2;
1766 addr->s6_addr32[2] = w3;
1767 addr->s6_addr32[3] = w4;
1770 static inline void ipv6_addr_solict_mult(const struct in6_addr *addr,
1771 struct in6_addr *solicited)
1773 ipv6_addr_set(solicited, htonl(0xFF020000), 0, htonl(0x1),
1774 htonl(0xFF000000) | addr->s6_addr32[3]);
1777 static int if_mc_group(int sock, int ifindex, const struct in6_addr *mc_addr,
1780 unsigned int val = 0;
1781 struct ipv6_mreq mreq;
1784 memset(&mreq, 0, sizeof(mreq));
1785 mreq.ipv6mr_interface = ifindex;
1786 mreq.ipv6mr_multiaddr = *mc_addr;
1788 ret = setsockopt(sock, IPPROTO_IPV6, IPV6_MULTICAST_LOOP,
1792 DBG("Cannot set IPV6_MULTICAST_LOOP %d/%s", ret,
1797 ret = setsockopt(sock, IPPROTO_IPV6, cmd, &mreq, sizeof(mreq));
1800 DBG("Cannot set option %d %d/%s", cmd, ret, strerror(-ret));
1807 int __connman_inet_ipv6_send_rs(int index, int timeout,
1808 __connman_inet_rs_cb_t callback, void *user_data)
1810 struct xs_cb_data *data;
1811 struct icmp6_filter filter;
1812 struct in6_addr solicit;
1813 struct in6_addr dst = in6addr_all_routers_mc;
1819 data = g_try_malloc0(sizeof(struct xs_cb_data));
1823 data->callback = callback;
1824 data->user_data = user_data;
1825 data->timeout = g_timeout_add_seconds(timeout, rs_timeout_cb, data);
1827 sk = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC, IPPROTO_ICMPV6);
1833 ICMP6_FILTER_SETBLOCKALL(&filter);
1834 ICMP6_FILTER_SETPASS(ND_ROUTER_ADVERT, &filter);
1836 setsockopt(sk, IPPROTO_ICMPV6, ICMP6_FILTER, &filter,
1837 sizeof(struct icmp6_filter));
1839 ipv6_addr_solict_mult(&dst, &solicit);
1840 if_mc_group(sk, index, &in6addr_all_nodes_mc, IPV6_JOIN_GROUP);
1841 if_mc_group(sk, index, &solicit, IPV6_JOIN_GROUP);
1843 data->channel = g_io_channel_unix_new(sk);
1844 g_io_channel_set_close_on_unref(data->channel, TRUE);
1846 g_io_channel_set_encoding(data->channel, NULL, NULL);
1847 g_io_channel_set_buffered(data->channel, FALSE);
1849 data->watch_id = g_io_add_watch(data->channel,
1850 G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
1851 icmpv6_event, data);
1853 ndisc_send_unspec(ND_ROUTER_SOLICIT, index, &dst, NULL, NULL, 0, 0);
1858 static inline void ipv6_addr_advert_mult(const struct in6_addr *addr,
1859 struct in6_addr *advert)
1861 ipv6_addr_set(advert, htonl(0xFF020000), 0, htonl(0x2),
1862 htonl(0xFF000000) | addr->s6_addr32[3]);
1865 #define MSG_SIZE_SEND 1452
1867 static int inc_len(int len, int inc)
1869 if (len > MSG_SIZE_SEND)
1876 int __connman_inet_ipv6_send_ra(int index, struct in6_addr *src_addr,
1877 GSList *prefixes, int router_lifetime)
1880 struct in6_addr src, *source;
1881 struct in6_addr dst = in6addr_all_nodes_mc;
1882 GDHCPIAPrefix *prefix;
1883 unsigned char buf[MSG_SIZE_SEND];
1884 char addr_str[INET6_ADDRSTRLEN];
1891 sk = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC, IPPROTO_ICMPV6);
1896 __connman_inet_get_interface_ll_address(index, AF_INET6, &src);
1901 DBG("sock %d index %d prefixes %p src %s lifetime %d", sk, index,
1902 prefixes, inet_ntop(AF_INET6, source, addr_str,
1906 memset(buf, 0, MSG_SIZE_SEND);
1909 for (list = prefixes; list; list = list->next) {
1910 struct nd_opt_prefix_info *pinfo;
1912 prefix = list->data;
1913 pinfo = (struct nd_opt_prefix_info *)(buf + len);
1915 len = inc_len(len, sizeof(*pinfo));
1921 pinfo->nd_opt_pi_type = ND_OPT_PREFIX_INFORMATION;
1922 pinfo->nd_opt_pi_len = 4;
1923 pinfo->nd_opt_pi_prefix_len = prefix->prefixlen;
1924 pinfo->nd_opt_pi_flags_reserved = ND_OPT_PI_FLAG_ONLINK;
1925 pinfo->nd_opt_pi_flags_reserved |= ND_OPT_PI_FLAG_AUTO;
1926 if (router_lifetime > 0) {
1927 pinfo->nd_opt_pi_valid_time = htonl(prefix->valid);
1928 pinfo->nd_opt_pi_preferred_time =
1929 htonl(prefix->preferred);
1931 pinfo->nd_opt_pi_reserved2 = 0;
1933 memcpy(&pinfo->nd_opt_pi_prefix, &prefix->prefix,
1934 sizeof(struct in6_addr));
1936 DBG("[%d] index %d prefix %s/%d", count, index,
1937 inet_ntop(AF_INET6, &prefix->prefix, addr_str,
1938 INET6_ADDRSTRLEN), prefix->prefixlen);
1944 err = ndisc_send_unspec(ND_ROUTER_ADVERT, index, &dst, source,
1945 buf, len, router_lifetime);
1947 DBG("cannot send RA %d/%s", err, strerror(-err));
1955 void __connman_inet_ipv6_stop_recv_rs(void *context)
1960 xs_cleanup(context);
1963 static int icmpv6_rs_recv(int fd, struct xs_cb_data *data)
1967 unsigned char chdr[CMSG_BUF_LEN];
1968 unsigned char buf[1540];
1969 struct nd_router_solicit *hdr;
1970 struct sockaddr_in6 saddr;
1972 __connman_inet_recv_rs_cb_t cb = data->callback;
1976 iov.iov_len = sizeof(buf);
1979 mhdr.msg_name = (void *)&saddr;
1980 mhdr.msg_namelen = sizeof(struct sockaddr_in6);
1982 mhdr.msg_iov = &iov;
1983 mhdr.msg_iovlen = 1;
1984 mhdr.msg_control = (void *)chdr;
1985 mhdr.msg_controllen = CMSG_BUF_LEN;
1987 len = recvmsg(fd, &mhdr, 0);
1989 cb(NULL, 0, data->user_data);
1993 hdr = (struct nd_router_solicit *)buf;
1994 DBG("code %d len %zd hdr %zd", hdr->nd_rs_code, len,
1995 sizeof(struct nd_router_solicit));
1996 if (hdr->nd_rs_code != 0)
1999 cb(hdr, len, data->user_data);
2003 static gboolean icmpv6_rs_event(GIOChannel *chan, GIOCondition cond,
2007 struct xs_cb_data *xs_data = data;
2011 if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
2014 fd = g_io_channel_unix_get_fd(chan);
2015 ret = icmpv6_rs_recv(fd, xs_data);
2020 xs_data->watch_id = 0;
2024 int __connman_inet_ipv6_start_recv_rs(int index,
2025 __connman_inet_recv_rs_cb_t callback,
2029 struct xs_cb_data *data;
2030 struct icmp6_filter filter;
2031 char addr_str[INET6_ADDRSTRLEN];
2034 data = g_try_malloc0(sizeof(struct xs_cb_data));
2038 data->callback = callback;
2039 data->user_data = user_data;
2041 sk = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC, IPPROTO_ICMPV6);
2049 ICMP6_FILTER_SETBLOCKALL(&filter);
2050 ICMP6_FILTER_SETPASS(ND_ROUTER_SOLICIT, &filter);
2052 setsockopt(sk, IPPROTO_ICMPV6, ICMP6_FILTER, &filter,
2053 sizeof(struct icmp6_filter));
2055 err = if_mc_group(sk, index, &in6addr_all_routers_mc, IPV6_JOIN_GROUP);
2057 DBG("Cannot join mc %s %d/%s", inet_ntop(AF_INET6,
2058 &in6addr_all_routers_mc, addr_str, INET6_ADDRSTRLEN),
2059 err, strerror(-err));
2061 data->channel = g_io_channel_unix_new(sk);
2062 g_io_channel_set_close_on_unref(data->channel, TRUE);
2064 g_io_channel_set_encoding(data->channel, NULL, NULL);
2065 g_io_channel_set_buffered(data->channel, FALSE);
2067 data->watch_id = g_io_add_watch(data->channel,
2068 G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
2069 icmpv6_rs_event, data);
2076 static gboolean ns_timeout_cb(gpointer user_data)
2078 struct xs_cb_data *data = user_data;
2080 DBG("user data %p", user_data);
2085 if (data->callback) {
2086 __connman_inet_ns_cb_t cb = data->callback;
2087 cb(NULL, 0, &data->addr.sin6_addr, data->user_data);
2095 static int icmpv6_nd_recv(int fd, struct xs_cb_data *data)
2099 unsigned char chdr[CMSG_BUF_LEN];
2100 unsigned char buf[1540];
2101 struct nd_neighbor_advert *hdr;
2102 struct sockaddr_in6 saddr;
2104 __connman_inet_ns_cb_t cb = data->callback;
2108 iov.iov_len = sizeof(buf);
2111 mhdr.msg_name = (void *)&saddr;
2112 mhdr.msg_namelen = sizeof(struct sockaddr_in6);
2114 mhdr.msg_iov = &iov;
2115 mhdr.msg_iovlen = 1;
2116 mhdr.msg_control = (void *)chdr;
2117 mhdr.msg_controllen = CMSG_BUF_LEN;
2119 len = recvmsg(fd, &mhdr, 0);
2121 cb(NULL, 0, &data->addr.sin6_addr, data->user_data);
2125 hdr = (struct nd_neighbor_advert *)buf;
2126 DBG("code %d len %zd hdr %zd", hdr->nd_na_code, len,
2127 sizeof(struct nd_neighbor_advert));
2128 if (hdr->nd_na_code != 0)
2132 * We can receive any neighbor advertisement so we need to check if the
2133 * packet was meant for us and ignore the packet otherwise.
2135 if (memcmp(&data->addr.sin6_addr, &hdr->nd_na_target,
2136 sizeof(struct in6_addr)))
2139 cb(hdr, len, &data->addr.sin6_addr, data->user_data);
2144 static gboolean icmpv6_nd_event(GIOChannel *chan, GIOCondition cond,
2148 struct xs_cb_data *xs_data = data;
2152 if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
2155 fd = g_io_channel_unix_get_fd(chan);
2156 ret = icmpv6_nd_recv(fd, xs_data);
2161 xs_cleanup(xs_data);
2165 int __connman_inet_ipv6_do_dad(int index, int timeout_ms,
2166 struct in6_addr *addr,
2167 __connman_inet_ns_cb_t callback,
2170 struct xs_cb_data *data;
2171 struct icmp6_filter filter;
2172 struct in6_addr solicit;
2173 int sk, err, val = 1;
2175 if (timeout_ms <= 0)
2178 data = g_try_malloc0(sizeof(struct xs_cb_data));
2182 data->callback = callback;
2183 data->user_data = user_data;
2184 data->timeout = g_timeout_add_full(G_PRIORITY_DEFAULT,
2189 memcpy(&data->addr.sin6_addr, addr, sizeof(struct in6_addr));
2191 sk = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC, IPPROTO_ICMPV6);
2197 ICMP6_FILTER_SETBLOCKALL(&filter);
2198 ICMP6_FILTER_SETPASS(ND_NEIGHBOR_ADVERT, &filter);
2200 setsockopt(sk, IPPROTO_ICMPV6, ICMP6_FILTER, &filter,
2201 sizeof(struct icmp6_filter));
2203 if (setsockopt(sk, IPPROTO_IPV6, IPV6_RECVPKTINFO,
2204 &val, sizeof(val)) < 0) {
2206 DBG("Cannot set IPV6_RECVPKTINFO %d/%s", err,
2212 if (setsockopt(sk, IPPROTO_IPV6, IPV6_RECVHOPLIMIT,
2213 &val, sizeof(val)) < 0) {
2215 DBG("Cannot set IPV6_RECVHOPLIMIT %d/%s", err,
2222 setsockopt(sk, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &val, sizeof(val));
2224 ipv6_addr_solict_mult(addr, &solicit);
2225 if_mc_group(sk, index, &in6addr_all_nodes_mc, IPV6_JOIN_GROUP);
2226 if_mc_group(sk, index, &solicit, IPV6_JOIN_GROUP);
2228 data->channel = g_io_channel_unix_new(sk);
2229 g_io_channel_set_close_on_unref(data->channel, TRUE);
2231 g_io_channel_set_encoding(data->channel, NULL, NULL);
2232 g_io_channel_set_buffered(data->channel, FALSE);
2234 data->watch_id = g_io_add_watch(data->channel,
2235 G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
2236 icmpv6_nd_event, data);
2238 err = ndisc_send_unspec(ND_NEIGHBOR_SOLICIT, index, &solicit, NULL,
2239 (unsigned char *)addr, 0, 0);
2241 DBG("Cannot send NS %d/%s", err, strerror(-err));
2248 GSList *__connman_inet_ipv6_get_prefixes(struct nd_router_advert *hdr,
2249 unsigned int length)
2251 GSList *prefixes = NULL;
2255 if (length <= sizeof(struct nd_router_advert))
2258 len = length - sizeof(struct nd_router_advert);
2259 pos = (uint8_t *)hdr + sizeof(struct nd_router_advert);
2262 struct nd_opt_prefix_info *pinfo;
2263 char prefix_str[INET6_ADDRSTRLEN+1], *str;
2270 optlen = pos[1] << 3;
2271 if (optlen == 0 || optlen > len)
2275 case ND_OPT_PREFIX_INFORMATION:
2276 pinfo = (struct nd_opt_prefix_info *)pos;
2277 prefix = inet_ntop(AF_INET6, &pinfo->nd_opt_pi_prefix,
2278 prefix_str, INET6_ADDRSTRLEN);
2282 str = g_strdup_printf("%s/%d", prefix,
2283 pinfo->nd_opt_pi_prefix_len);
2284 prefixes = g_slist_prepend(prefixes, str);
2286 DBG("prefix %s", str);
2298 static int get_dest_addr(int family, int index, char *buf, int len)
2304 sk = socket(family, SOCK_DGRAM | SOCK_CLOEXEC, 0);
2308 memset(&ifr, 0, sizeof(ifr));
2309 ifr.ifr_ifindex = index;
2311 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
2312 DBG("SIOCGIFNAME (%d/%s)", errno, strerror(errno));
2317 if (ioctl(sk, SIOCGIFFLAGS, &ifr) < 0) {
2318 DBG("SIOCGIFFLAGS (%d/%s)", errno, strerror(errno));
2323 if ((ifr.ifr_flags & IFF_POINTOPOINT) == 0) {
2329 DBG("index %d %s", index, ifr.ifr_name);
2331 if (ioctl(sk, SIOCGIFDSTADDR, &ifr) < 0) {
2332 connman_error("Get destination address failed (%s)",
2342 addr = &((struct sockaddr_in *)&ifr.ifr_dstaddr)->sin_addr;
2345 addr = &((struct sockaddr_in6 *)&ifr.ifr_dstaddr)->sin6_addr;
2352 if (!inet_ntop(family, addr, buf, len)) {
2353 DBG("error %d/%s", errno, strerror(errno));
2360 int connman_inet_get_dest_addr(int index, char **dest)
2362 char addr[INET_ADDRSTRLEN];
2365 ret = get_dest_addr(PF_INET, index, addr, INET_ADDRSTRLEN);
2369 *dest = g_strdup(addr);
2371 DBG("destination %s", *dest);
2376 int connman_inet_ipv6_get_dest_addr(int index, char **dest)
2378 char addr[INET6_ADDRSTRLEN];
2381 ret = get_dest_addr(PF_INET6, index, addr, INET6_ADDRSTRLEN);
2385 *dest = g_strdup(addr);
2387 DBG("destination %s", *dest);
2392 int __connman_inet_rtnl_open(struct __connman_inet_rtnl_handle *rth)
2395 int rcvbuf = 1024 * 4;
2397 rth->fd = socket(AF_NETLINK, SOCK_RAW | SOCK_CLOEXEC, NETLINK_ROUTE);
2399 connman_error("Can not open netlink socket: %s",
2404 if (setsockopt(rth->fd, SOL_SOCKET, SO_SNDBUF, &sndbuf,
2405 sizeof(sndbuf)) < 0) {
2406 connman_error("SO_SNDBUF: %s", strerror(errno));
2410 if (setsockopt(rth->fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf,
2411 sizeof(rcvbuf)) < 0) {
2412 connman_error("SO_RCVBUF: %s", strerror(errno));
2416 memset(&rth->local, 0, sizeof(rth->local));
2417 rth->local.nl_family = AF_NETLINK;
2418 rth->local.nl_groups = 0;
2420 if (bind(rth->fd, (struct sockaddr *)&rth->local,
2421 sizeof(rth->local)) < 0) {
2422 connman_error("Can not bind netlink socket: %s",
2427 rth->seq = time(NULL);
2429 DBG("fd %d", rth->fd);
2434 struct inet_rtnl_cb_data {
2435 GIOChannel *channel;
2436 __connman_inet_rtnl_cb_t callback;
2439 struct __connman_inet_rtnl_handle *rtnl;
2443 static void inet_rtnl_cleanup(struct inet_rtnl_cb_data *data)
2445 struct __connman_inet_rtnl_handle *rth = data->rtnl;
2447 if (data->channel) {
2448 g_io_channel_shutdown(data->channel, TRUE, NULL);
2449 g_io_channel_unref(data->channel);
2450 data->channel = NULL;
2453 DBG("data %p", data);
2455 if (data->rtnl_timeout > 0)
2456 g_source_remove(data->rtnl_timeout);
2458 if (data->watch_id > 0)
2459 g_source_remove(data->watch_id);
2462 __connman_inet_rtnl_close(rth);
2469 static gboolean inet_rtnl_timeout_cb(gpointer user_data)
2471 struct inet_rtnl_cb_data *data = user_data;
2473 DBG("user data %p", user_data);
2479 data->callback(NULL, data->user_data);
2481 data->rtnl_timeout = 0;
2482 inet_rtnl_cleanup(data);
2486 static int inet_rtnl_recv(GIOChannel *chan, struct inet_rtnl_cb_data *rtnl_data)
2488 struct __connman_inet_rtnl_handle *rth = rtnl_data->rtnl;
2489 struct nlmsghdr *h = NULL;
2490 struct sockaddr_nl nladdr;
2491 socklen_t addr_len = sizeof(nladdr);
2492 unsigned char buf[4096];
2497 memset(buf, 0, sizeof(buf));
2498 memset(&nladdr, 0, sizeof(nladdr));
2500 fd = g_io_channel_unix_get_fd(chan);
2502 status = recvfrom(fd, buf, sizeof(buf), 0,
2503 (struct sockaddr *) &nladdr, &addr_len);
2505 if (errno == EINTR || errno == EAGAIN)
2514 if (nladdr.nl_pid != 0) { /* not sent by kernel, ignore */
2515 DBG("Received msg from %u, ignoring it", nladdr.nl_pid);
2522 struct nlmsgerr *err;
2526 if (!NLMSG_OK(h, len))
2529 if (h->nlmsg_seq != rth->seq) {
2531 DBG("skip %d/%d len %d", rth->seq,
2532 h->nlmsg_seq, h->nlmsg_len);
2534 len -= h->nlmsg_len;
2535 ptr += h->nlmsg_len;
2539 switch (h->nlmsg_type) {
2545 err = (struct nlmsgerr *)NLMSG_DATA(h);
2546 connman_error("RTNETLINK answers %s (%d)",
2547 strerror(-err->error), -err->error);
2554 if (h->nlmsg_seq == rth->seq) {
2555 DBG("received %d seq %d", h->nlmsg_len, h->nlmsg_seq);
2557 rtnl_data->callback(h, rtnl_data->user_data);
2559 inet_rtnl_cleanup(rtnl_data);
2565 static gboolean inet_rtnl_event(GIOChannel *chan, GIOCondition cond,
2569 struct inet_rtnl_cb_data *rtnl_data = user_data;
2573 if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
2576 ret = inet_rtnl_recv(chan, rtnl_data);
2581 rtnl_data->callback(NULL, rtnl_data->user_data);
2582 inet_rtnl_cleanup(rtnl_data);
2586 int __connman_inet_rtnl_talk(struct __connman_inet_rtnl_handle *rtnl,
2587 struct nlmsghdr *n, int timeout,
2588 __connman_inet_rtnl_cb_t callback, void *user_data)
2590 struct sockaddr_nl nladdr;
2591 struct inet_rtnl_cb_data *data;
2594 memset(&nladdr, 0, sizeof(nladdr));
2595 nladdr.nl_family = AF_NETLINK;
2597 n->nlmsg_seq = ++rtnl->seq;
2600 data = g_try_malloc0(sizeof(struct inet_rtnl_cb_data));
2604 data->callback = callback;
2605 data->user_data = user_data;
2607 data->rtnl_timeout = g_timeout_add_seconds(timeout,
2608 inet_rtnl_timeout_cb, data);
2610 data->channel = g_io_channel_unix_new(rtnl->fd);
2612 g_io_channel_set_encoding(data->channel, NULL, NULL);
2613 g_io_channel_set_buffered(data->channel, FALSE);
2615 data->watch_id = g_io_add_watch(data->channel,
2616 G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
2617 inet_rtnl_event, data);
2619 n->nlmsg_flags |= NLM_F_ACK;
2621 err = sendto(rtnl->fd, &rtnl->req.n, rtnl->req.n.nlmsg_len, 0,
2622 (struct sockaddr *) &nladdr, sizeof(nladdr));
2623 DBG("handle %p len %d", rtnl, rtnl->req.n.nlmsg_len);
2625 connman_error("Can not talk to rtnetlink err %d %s",
2626 -errno, strerror(errno));
2630 if ((unsigned int)err != rtnl->req.n.nlmsg_len) {
2631 connman_error("Sent %d bytes, msg truncated", err);
2638 void __connman_inet_rtnl_close(struct __connman_inet_rtnl_handle *rth)
2640 DBG("handle %p", rth);
2648 int __connman_inet_rtnl_addattr32(struct nlmsghdr *n, size_t maxlen, int type,
2651 int len = RTA_LENGTH(4);
2654 if (NLMSG_ALIGN(n->nlmsg_len) + len > maxlen) {
2655 DBG("Error! max allowed bound %zd exceeded", maxlen);
2658 rta = NLMSG_TAIL(n);
2659 rta->rta_type = type;
2661 memcpy(RTA_DATA(rta), &data, 4);
2662 n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + len;
2667 static int parse_rtattr(struct rtattr *tb[], int max,
2668 struct rtattr *rta, int len)
2670 memset(tb, 0, sizeof(struct rtattr *) * (max + 1));
2671 while (RTA_OK(rta, len)) {
2672 if ((rta->rta_type <= max) && (!tb[rta->rta_type]))
2673 tb[rta->rta_type] = rta;
2674 rta = RTA_NEXT(rta, len);
2677 connman_error("Deficit %d, rta_len=%d", len, rta->rta_len);
2682 struct get_route_cb_data {
2683 connman_inet_addr_cb_t callback;
2687 static void get_route_cb(struct nlmsghdr *answer, void *user_data)
2689 struct get_route_cb_data *data = user_data;
2690 struct rtattr *tb[RTA_MAX+1];
2691 struct rtmsg *r = NLMSG_DATA(answer);
2692 int len, index = -1;
2694 const char *addr = NULL;
2696 DBG("answer %p data %p", answer, user_data);
2701 len = answer->nlmsg_len;
2703 if (answer->nlmsg_type != RTM_NEWROUTE &&
2704 answer->nlmsg_type != RTM_DELROUTE) {
2705 connman_error("Not a route: %08x %08x %08x",
2706 answer->nlmsg_len, answer->nlmsg_type,
2707 answer->nlmsg_flags);
2711 len -= NLMSG_LENGTH(sizeof(*r));
2713 connman_error("BUG: wrong nlmsg len %d", len);
2717 parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
2720 index = *(int *)RTA_DATA(tb[RTA_OIF]);
2722 if (tb[RTA_GATEWAY])
2723 addr = inet_ntop(r->rtm_family,
2724 RTA_DATA(tb[RTA_GATEWAY]),
2725 abuf, sizeof(abuf));
2727 DBG("addr %s index %d user %p", addr, index, data->user_data);
2730 if (data && data->callback)
2731 data->callback(addr, index, data->user_data);
2737 * Return the interface index that contains route to host.
2739 int __connman_inet_get_route(const char *dest_address,
2740 connman_inet_addr_cb_t callback, void *user_data)
2742 struct get_route_cb_data *data;
2743 struct addrinfo hints, *rp;
2744 struct __connman_inet_rtnl_handle *rth;
2747 DBG("dest %s", dest_address);
2752 memset(&hints, 0, sizeof(hints));
2753 hints.ai_family = AF_UNSPEC;
2754 hints.ai_flags = AI_PASSIVE | AI_NUMERICSERV | AI_NUMERICHOST;
2756 err = getaddrinfo(dest_address, NULL, &hints, &rp);
2760 rth = g_try_malloc0(sizeof(struct __connman_inet_rtnl_handle));
2766 rth->req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
2767 rth->req.n.nlmsg_flags = NLM_F_REQUEST;
2768 rth->req.n.nlmsg_type = RTM_GETROUTE;
2769 rth->req.u.r.rt.rtm_family = rp->ai_family;
2770 rth->req.u.r.rt.rtm_table = 0;
2771 rth->req.u.r.rt.rtm_protocol = 0;
2772 rth->req.u.r.rt.rtm_scope = 0;
2773 rth->req.u.r.rt.rtm_type = 0;
2774 rth->req.u.r.rt.rtm_src_len = 0;
2775 rth->req.u.r.rt.rtm_tos = 0;
2777 if (rp->ai_family == AF_INET) {
2778 struct sockaddr_in *sin = (struct sockaddr_in *)rp->ai_addr;
2780 rth->req.u.r.rt.rtm_dst_len = 32;
2781 __connman_inet_rtnl_addattr_l(&rth->req.n, sizeof(rth->req),
2782 RTA_DST, &sin->sin_addr, sizeof(sin->sin_addr));
2783 } else if (rp->ai_family == AF_INET6) {
2784 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)rp->ai_addr;
2786 rth->req.u.r.rt.rtm_dst_len = 128;
2787 __connman_inet_rtnl_addattr_l(&rth->req.n, sizeof(rth->req),
2788 RTA_DST, &sin6->sin6_addr, sizeof(sin6->sin6_addr));
2793 err = __connman_inet_rtnl_open(rth);
2797 data = g_try_malloc(sizeof(struct get_route_cb_data));
2803 data->callback = callback;
2804 data->user_data = user_data;
2806 #define GET_ROUTE_TIMEOUT 2
2807 err = __connman_inet_rtnl_talk(rth, &rth->req.n, GET_ROUTE_TIMEOUT,
2808 get_route_cb, data);
2817 __connman_inet_rtnl_close(rth);
2824 int connman_inet_check_ipaddress(const char *host)
2826 struct addrinfo hints;
2827 struct addrinfo *addr;
2830 memset(&hints, 0, sizeof(struct addrinfo));
2831 hints.ai_flags = AI_NUMERICHOST;
2834 result = getaddrinfo(host, NULL, &hints, &addr);
2836 result = addr->ai_family;
2843 /* Check routine modified from ics-dhcp 4.2.3-P2 */
2844 bool connman_inet_check_hostname(const char *ptr, size_t len)
2849 * Not empty or complete length not over 255 characters.
2851 if ((len == 0) || (len > 256))
2855 * Consists of [[:alnum:]-]+ labels separated by [.]
2856 * a [_] is against RFC but seems to be "widely used"
2858 for (p = ptr; (*p != 0) && (len-- > 0); p++) {
2860 if ((*p == '-') || (*p == '_')) {
2862 * Not allowed at begin or end of a label.
2864 if (((p - ptr) == 0) || (len == 0) || (p[1] == '.'))
2867 } else if (*p == '.') {
2869 * Each label has to be 1-63 characters;
2870 * we allow [.] at the end ('foo.bar.')
2874 if ((d <= 0) || (d >= 64))
2877 ptr = p + 1; /* Jump to the next label */
2879 } else if (isalnum((unsigned char)*p) == 0) {
2881 * Also numbers at the begin are fine
2890 char **__connman_inet_get_running_interfaces(void)
2894 struct ifreq *ifr = NULL;
2895 int sk, i, numif, count = 0;
2897 memset(&ifc, 0, sizeof(ifc));
2899 sk = socket(AF_INET, SOCK_DGRAM, 0);
2903 if (ioctl(sk, SIOCGIFCONF, &ifc) < 0)
2907 * Allocate some extra bytes just in case there will
2908 * be new interfaces added between two SIOCGIFCONF
2911 ifr = g_try_malloc0(ifc.ifc_len * 2);
2917 if (ioctl(sk, SIOCGIFCONF, &ifc) < 0)
2920 numif = ifc.ifc_len / sizeof(struct ifreq);
2922 result = g_try_malloc0((numif + 1) * sizeof(char *));
2928 for (i = 0; i < numif; i++) {
2929 struct ifreq *r = &ifr[i];
2930 struct in6_addr *addr6;
2934 * Note that we do not return loopback interfaces here as they
2935 * are not needed for our purposes.
2937 switch (r->ifr_addr.sa_family) {
2939 addr4 = ntohl(((struct sockaddr_in *)
2940 &r->ifr_addr)->sin_addr.s_addr);
2941 if (((addr4 & 0xff000000) >> 24) == 127)
2945 addr6 = &((struct sockaddr_in6 *)
2946 &r->ifr_addr)->sin6_addr;
2947 if (IN6_IS_ADDR_LINKLOCAL(addr6))
2952 result[count++] = g_strdup(r->ifr_name);
2957 if (count < numif) {
2958 char **prev_result = result;
2959 result = g_try_realloc(result, (count + 1) * sizeof(char *));
2961 g_free(prev_result);
2974 bool connman_inet_is_ipv6_supported()
2978 sk = socket(PF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
2986 int __connman_inet_get_interface_address(int index, int family, void *address)
2988 struct ifaddrs *ifaddr, *ifa;
2990 char name[IF_NAMESIZE];
2992 if (!if_indextoname(index, name))
2995 DBG("index %d interface %s", index, name);
2997 if (getifaddrs(&ifaddr) < 0) {
2999 DBG("Cannot get addresses err %d/%s", err, strerror(-err));
3003 for (ifa = ifaddr; ifa; ifa = ifa->ifa_next) {
3007 if (strncmp(ifa->ifa_name, name, IF_NAMESIZE) == 0 &&
3008 ifa->ifa_addr->sa_family == family) {
3009 if (family == AF_INET) {
3010 struct sockaddr_in *in4 = (struct sockaddr_in *)
3012 if (in4->sin_addr.s_addr == INADDR_ANY)
3014 memcpy(address, &in4->sin_addr,
3015 sizeof(struct in_addr));
3016 } else if (family == AF_INET6) {
3017 struct sockaddr_in6 *in6 =
3018 (struct sockaddr_in6 *)ifa->ifa_addr;
3019 if (memcmp(&in6->sin6_addr, &in6addr_any,
3020 sizeof(struct in6_addr)) == 0)
3022 memcpy(address, &in6->sin6_addr,
3023 sizeof(struct in6_addr));
3036 freeifaddrs(ifaddr);
3040 int __connman_inet_get_interface_mac_address(int index, uint8_t *mac_address)
3046 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
3048 DBG("Open socket error");
3052 memset(&ifr, 0, sizeof(ifr));
3053 ifr.ifr_ifindex = index;
3055 err = ioctl(sk, SIOCGIFNAME, &ifr);
3057 DBG("Get interface name error");
3061 err = ioctl(sk, SIOCGIFHWADDR, &ifr);
3063 DBG("Get MAC address error");
3067 memcpy(mac_address, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
3075 static int iprule_modify(int cmd, int family, uint32_t table_id,
3078 struct __connman_inet_rtnl_handle rth;
3081 memset(&rth, 0, sizeof(rth));
3083 rth.req.n.nlmsg_type = cmd;
3084 rth.req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
3085 rth.req.n.nlmsg_flags = NLM_F_REQUEST;
3086 rth.req.u.r.rt.rtm_family = family;
3087 rth.req.u.r.rt.rtm_protocol = RTPROT_BOOT;
3088 rth.req.u.r.rt.rtm_scope = RT_SCOPE_UNIVERSE;
3089 rth.req.u.r.rt.rtm_table = table_id;
3090 rth.req.u.r.rt.rtm_type = RTN_UNSPEC;
3091 rth.req.u.r.rt.rtm_flags = 0;
3093 if (cmd == RTM_NEWRULE) {
3094 rth.req.n.nlmsg_flags |= NLM_F_CREATE|NLM_F_EXCL;
3095 rth.req.u.r.rt.rtm_type = RTN_UNICAST;
3098 __connman_inet_rtnl_addattr32(&rth.req.n, sizeof(rth.req),
3099 FRA_FWMARK, fwmark);
3101 if (table_id < 256) {
3102 rth.req.u.r.rt.rtm_table = table_id;
3104 rth.req.u.r.rt.rtm_table = RT_TABLE_UNSPEC;
3105 __connman_inet_rtnl_addattr32(&rth.req.n, sizeof(rth.req),
3106 FRA_TABLE, table_id);
3109 if (rth.req.u.r.rt.rtm_family == AF_UNSPEC)
3110 rth.req.u.r.rt.rtm_family = AF_INET;
3112 ret = __connman_inet_rtnl_open(&rth);
3116 ret = __connman_inet_rtnl_send(&rth, &rth.req.n);
3119 __connman_inet_rtnl_close(&rth);
3124 int __connman_inet_add_fwmark_rule(uint32_t table_id, int family, uint32_t fwmark)
3126 /* ip rule add fwmark 9876 table 1234 */
3128 return iprule_modify(RTM_NEWRULE, family, table_id, fwmark);
3131 int __connman_inet_del_fwmark_rule(uint32_t table_id, int family, uint32_t fwmark)
3133 return iprule_modify(RTM_DELRULE, family, table_id, fwmark);
3136 static int iproute_default_modify(int cmd, uint32_t table_id, int ifindex,
3137 const char *gateway, unsigned char prefixlen)
3139 struct __connman_inet_rtnl_handle rth;
3140 unsigned char buf[sizeof(struct in6_addr)];
3142 int family = connman_inet_check_ipaddress(gateway);
3145 DBG("gateway %s/%u table %u", gateway, prefixlen, table_id);
3159 struct in_addr ipv4_subnet_addr, ipv4_mask;
3161 memset(&ipv4_subnet_addr, 0, sizeof(ipv4_subnet_addr));
3162 ipv4_mask.s_addr = htonl((0xffffffff << (32 - prefixlen)) & 0xffffffff);
3163 ipv4_subnet_addr.s_addr = inet_addr(gateway);
3164 ipv4_subnet_addr.s_addr &= ipv4_mask.s_addr;
3166 dst = g_strdup(inet_ntoa(ipv4_subnet_addr));
3169 ret = inet_pton(family, dst ? dst : gateway, buf);
3174 memset(&rth, 0, sizeof(rth));
3176 rth.req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
3177 rth.req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL;
3178 rth.req.n.nlmsg_type = cmd;
3179 rth.req.u.r.rt.rtm_family = family;
3180 rth.req.u.r.rt.rtm_table = RT_TABLE_MAIN;
3181 rth.req.u.r.rt.rtm_scope = RT_SCOPE_NOWHERE;
3182 rth.req.u.r.rt.rtm_protocol = RTPROT_BOOT;
3183 rth.req.u.r.rt.rtm_scope = RT_SCOPE_UNIVERSE;
3184 rth.req.u.r.rt.rtm_type = RTN_UNICAST;
3185 rth.req.u.r.rt.rtm_dst_len = prefixlen;
3187 __connman_inet_rtnl_addattr_l(&rth.req.n, sizeof(rth.req),
3188 prefixlen > 0 ? RTA_DST : RTA_GATEWAY, buf, len);
3190 if (table_id < 256) {
3191 rth.req.u.r.rt.rtm_table = table_id;
3193 rth.req.u.r.rt.rtm_table = RT_TABLE_UNSPEC;
3194 __connman_inet_rtnl_addattr32(&rth.req.n, sizeof(rth.req),
3195 RTA_TABLE, table_id);
3198 __connman_inet_rtnl_addattr32(&rth.req.n, sizeof(rth.req),
3201 ret = __connman_inet_rtnl_open(&rth);
3205 ret = __connman_inet_rtnl_send(&rth, &rth.req.n);
3208 __connman_inet_rtnl_close(&rth);
3213 int __connman_inet_add_default_to_table(uint32_t table_id, int ifindex,
3214 const char *gateway)
3216 /* ip route add default via 1.2.3.4 dev wlan0 table 1234 */
3218 return iproute_default_modify(RTM_NEWROUTE, table_id, ifindex, gateway, 0);
3221 int __connman_inet_add_subnet_to_table(uint32_t table_id, int ifindex,
3222 const char *gateway, unsigned char prefixlen)
3224 /* ip route add 1.2.3.4/24 dev eth0 table 1234 */
3225 return iproute_default_modify(RTM_NEWROUTE, table_id, ifindex, gateway, prefixlen);
3228 int __connman_inet_del_default_from_table(uint32_t table_id, int ifindex,
3229 const char *gateway)
3231 /* ip route del default via 1.2.3.4 dev wlan0 table 1234 */
3233 return iproute_default_modify(RTM_DELROUTE, table_id, ifindex, gateway, 0);
3236 int __connman_inet_del_subnet_from_table(uint32_t table_id, int ifindex,
3237 const char *gateway, unsigned char prefixlen)
3239 /* ip route del 1.2.3.4/24 dev eth0 table 1234 */
3240 return iproute_default_modify(RTM_DELROUTE, table_id, ifindex, gateway, prefixlen);
3243 int __connman_inet_get_interface_ll_address(int index, int family,
3246 struct ifaddrs *ifaddr, *ifa;
3248 char name[IF_NAMESIZE];
3250 if (!if_indextoname(index, name))
3253 DBG("index %d interface %s", index, name);
3255 if (getifaddrs(&ifaddr) < 0) {
3257 DBG("Cannot get addresses err %d/%s", err, strerror(-err));
3261 for (ifa = ifaddr; ifa; ifa = ifa->ifa_next) {
3265 if (strncmp(ifa->ifa_name, name, IF_NAMESIZE) == 0 &&
3266 ifa->ifa_addr->sa_family == family) {
3267 if (family == AF_INET) {
3268 struct sockaddr_in *in4 = (struct sockaddr_in *)
3270 if (in4->sin_addr.s_addr == INADDR_ANY)
3272 if ((in4->sin_addr.s_addr & IN_CLASSB_NET) !=
3273 ((in_addr_t) 0xa9fe0000))
3275 memcpy(address, &in4->sin_addr,
3276 sizeof(struct in_addr));
3277 } else if (family == AF_INET6) {
3278 struct sockaddr_in6 *in6 =
3279 (struct sockaddr_in6 *)ifa->ifa_addr;
3280 if (memcmp(&in6->sin6_addr, &in6addr_any,
3281 sizeof(struct in6_addr)) == 0)
3283 if (!IN6_IS_ADDR_LINKLOCAL(&in6->sin6_addr))
3286 memcpy(address, &in6->sin6_addr,
3287 sizeof(struct in6_addr));
3299 freeifaddrs(ifaddr);
3303 int __connman_inet_get_address_netmask(int ifindex,
3304 struct sockaddr_in *address,
3305 struct sockaddr_in *netmask)
3307 int sk, ret = -EINVAL;
3310 DBG("index %d", ifindex);
3312 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
3316 memset(&ifr, 0, sizeof(ifr));
3317 ifr.ifr_ifindex = ifindex;
3319 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0)
3322 if (ioctl(sk, SIOCGIFNETMASK, &ifr) < 0)
3325 memcpy(netmask, (struct sockaddr_in *)&ifr.ifr_netmask,
3326 sizeof(struct sockaddr_in));
3328 if (ioctl(sk, SIOCGIFADDR, &ifr) < 0)
3331 memcpy(address, (struct sockaddr_in *)&ifr.ifr_addr,
3332 sizeof(struct sockaddr_in));
3340 static int get_nfs_server_ip(const char *cmdline_file, const char *pnp_file,
3341 struct in_addr *addr)
3345 char addrstr[INET_ADDRSTRLEN];
3346 struct in_addr taddr;
3347 GError *error = NULL;
3348 char *cmdline = NULL;
3351 char **pnpent = NULL;
3356 cmdline_file = "/proc/cmdline";
3358 pnp_file = "/proc/net/pnp";
3361 addr->s_addr = INADDR_NONE;
3363 if (!g_file_get_contents(cmdline_file, &cmdline, NULL, &error)) {
3364 connman_error("%s: Cannot read %s %s\n", __func__,
3365 cmdline_file, error->message);
3369 if (g_file_test(pnp_file, G_FILE_TEST_EXISTS)) {
3370 if (!g_file_get_contents(pnp_file, &pnp, NULL, &error)) {
3371 connman_error("%s: Cannot read %s %s\n", __func__,
3372 pnp_file, error->message);
3378 len = strlen(cmdline);
3383 /* remove newline */
3384 if (cmdline[len - 1] == '\n')
3385 cmdline[--len] = '\0';
3387 /* split in arguments (separated by space) */
3388 args = g_strsplit(cmdline, " ", 0);
3390 connman_error("%s: Cannot split cmdline \"%s\"\n", __func__,
3395 /* split in entries (by newlines) */
3396 pnpent = g_strsplit(pnp, "\n", 0);
3398 connman_error("%s: Cannot split pnp at file \"%s\"\n", __func__,
3403 /* first find root argument */
3404 for (pp = args; *pp; pp++) {
3405 if (!strcmp(*pp, "root=/dev/nfs"))
3408 /* no rootnfs found */
3412 /* locate nfsroot argument */
3413 for (pp = args; *pp; pp++) {
3414 if (!strncmp(*pp, "nfsroot=", strlen("nfsroot=")))
3417 /* no nfsroot argument found */
3421 /* determine if nfsroot server is provided */
3422 nfsargs = strchr(*pp, '=');
3427 /* find whether serverip is present */
3428 s = strchr(nfsargs, ':');
3433 /* no serverip, use bootserver */
3434 for (pp = pnpent; *pp; pp++) {
3435 if (!strncmp(*pp, "bootserver ", strlen("bootserver ")))
3438 /* no bootserver found */
3441 s = *pp + strlen("bootserver ");
3445 /* copy to addr string buffer */
3446 if (len >= sizeof(addrstr)) {
3447 connman_error("%s: Bad server\n", __func__);
3450 memcpy(addrstr, s, len);
3451 addrstr[len] = '\0';
3453 err = inet_pton(AF_INET, addrstr, addr);
3455 connman_error("%s: Cannot convert to numeric addr \"%s\"\n",
3467 g_error_free(error);
3474 /* get interface out of which peer is reachable (IPv4 only) */
3475 static int get_peer_iface(struct in_addr *addr, char *ifname)
3477 struct ifaddrs *ifaddr, *ifa;
3478 struct sockaddr_in saddr, *ifsaddr;
3483 /* Obtain address(es) matching host/port */
3484 err = getifaddrs(&ifaddr);
3486 connman_error("%s: getifaddrs() failed %d (%s)\n",
3487 __func__, errno, strerror(errno));
3491 s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
3493 connman_error("%s: socket() failed %d (%s)\n",
3494 __func__, errno, strerror(errno));
3498 memset(&saddr, 0, sizeof(saddr));
3499 saddr.sin_family = AF_INET;
3500 saddr.sin_port = 0; /* any port */
3501 saddr.sin_addr = *addr;
3503 /* no need to bind, connect will select iface */
3504 err = connect(s, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
3506 connman_error("%s: connect() failed: %d (%s)\n",
3507 __func__, errno, strerror(errno));
3511 socklen = sizeof(saddr);
3512 err = getsockname(s, (struct sockaddr *)&saddr, &socklen);
3514 connman_error("%s: getsockname() failed: %d (%s)\n",
3515 __func__, errno, strerror(errno));
3520 for (ifa = ifaddr; ifa; ifa = ifa->ifa_next) {
3524 /* only IPv4 address */
3525 if (ifa->ifa_addr->sa_family != AF_INET)
3528 ifsaddr = (struct sockaddr_in *)ifa->ifa_addr;
3530 /* match address? */
3531 if (ifsaddr->sin_addr.s_addr == saddr.sin_addr.s_addr)
3538 strcpy(ifname, ifa->ifa_name);
3544 freeifaddrs(ifaddr);
3549 bool __connman_inet_isrootnfs_device(const char *devname)
3551 struct in_addr addr;
3552 char ifname[IFNAMSIZ];
3554 return get_nfs_server_ip(NULL, NULL, &addr) == 0 &&
3555 get_peer_iface(&addr, ifname) == 0 &&
3556 strcmp(devname, ifname) == 0;
3559 char **__connman_inet_get_pnp_nameservers(const char *pnp_file)
3564 GError *error = NULL;
3566 char **pnpent = NULL;
3567 char **nameservers = NULL;
3570 pnp_file = "/proc/net/pnp";
3572 if (!g_file_test(pnp_file, G_FILE_TEST_EXISTS))
3575 if (!g_file_get_contents(pnp_file, &pnp, NULL, &error)) {
3576 connman_error("%s: Cannot read %s %s\n", __func__,
3577 pnp_file, error->message);
3581 /* split in entries (by newlines) */
3582 pnpent = g_strsplit(pnp, "\n", 0);
3584 connman_error("%s: Cannot split pnp \"%s\"\n", __func__,
3590 * Perform two passes to retrieve a char ** array of
3591 * nameservers that are not 0.0.0.0
3593 * The first pass counts them, the second fills in the
3598 for (pass = 1; pass <= 2; pass++) {
3600 /* at the start of the second pass allocate */
3602 nameservers = g_new(char *, count + 1);
3605 for (pp = pnpent; *pp; pp++) {
3606 /* match 'nameserver ' at the start of each line */
3607 if (strncmp(*pp, "nameserver ", strlen("nameserver ")))
3610 /* compare it against 0.0.0.0 */
3611 s = *pp + strlen("nameserver ");
3612 if (!strcmp(s, "0.0.0.0"))
3615 /* on second pass fill in array */
3617 nameservers[count] = g_strdup(s);
3621 /* no nameservers? */
3625 /* and terminate char ** array with NULL */
3627 nameservers[count] = NULL;
3635 g_error_free(error);