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 int connman_inet_remove_from_bridge(int index, const char *bridge)
1239 sk = socket(AF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0);
1245 memset(&ifr, 0, sizeof(ifr));
1246 strncpy(ifr.ifr_name, bridge, sizeof(ifr.ifr_name) - 1);
1247 ifr.ifr_ifindex = index;
1249 if (ioctl(sk, SIOCBRDELIF, &ifr) < 0)
1256 connman_error("Remove interface from bridge error %s",
1262 int connman_inet_add_to_bridge(int index, const char *bridge)
1270 sk = socket(AF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0);
1276 memset(&ifr, 0, sizeof(ifr));
1277 strncpy(ifr.ifr_name, bridge, sizeof(ifr.ifr_name) - 1);
1278 ifr.ifr_ifindex = index;
1280 if (ioctl(sk, SIOCBRADDIF, &ifr) < 0)
1287 connman_error("Add interface to bridge error %s",
1293 int connman_inet_set_mtu(int index, int mtu)
1298 sk = socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1302 memset(&ifr, 0, sizeof(ifr));
1303 ifr.ifr_ifindex = index;
1305 err = ioctl(sk, SIOCGIFNAME, &ifr);
1308 err = ioctl(sk, SIOCSIFMTU, &ifr);
1315 int connman_inet_setup_tunnel(char *tunnel, int mtu)
1325 sk = socket(AF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1329 index = if_nametoindex(tunnel);
1331 err = connman_inet_set_mtu(index, mtu);
1335 memset(&ifr, 0, sizeof(ifr));
1336 strncpy(ifr.ifr_name, tunnel, sizeof(ifr.ifr_name) - 1);
1337 err = ioctl(sk, SIOCGIFFLAGS, &ifr);
1344 if ((ifr.ifr_flags ^ flags) & mask) {
1345 ifr.ifr_flags &= ~mask;
1346 ifr.ifr_flags |= mask & flags;
1347 err = ioctl(sk, SIOCSIFFLAGS, &ifr);
1349 connman_error("SIOCSIFFLAGS failed: %s",
1358 int connman_inet_create_tunnel(char **iface)
1363 fd = open("/dev/net/tun", O_RDWR | O_CLOEXEC);
1366 connman_error("Failed to open /dev/net/tun: %s",
1371 memset(&ifr, 0, sizeof(ifr));
1372 ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
1374 for (i = 0; i < 256; i++) {
1375 sprintf(ifr.ifr_name, "tun%d", i);
1377 if (!ioctl(fd, TUNSETIFF, (void *)&ifr))
1382 connman_error("Failed to find available tun device");
1387 *iface = g_strdup(ifr.ifr_name);
1393 * This callback struct is used when sending router and neighbor
1394 * solicitation and advertisement messages.
1397 GIOChannel *channel;
1399 struct sockaddr_in6 addr;
1405 #define CMSG_BUF_LEN 512
1406 #define IN6ADDR_ALL_NODES_MC_INIT \
1407 { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x1 } } } /* ff02::1 */
1408 #define IN6ADDR_ALL_ROUTERS_MC_INIT \
1409 { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x2 } } } /* ff02::2 */
1411 static const struct in6_addr in6addr_all_nodes_mc = IN6ADDR_ALL_NODES_MC_INIT;
1412 static const struct in6_addr in6addr_all_routers_mc =
1413 IN6ADDR_ALL_ROUTERS_MC_INIT;
1415 static void xs_cleanup(struct xs_cb_data *data)
1417 if (data->channel) {
1418 g_io_channel_shutdown(data->channel, TRUE, NULL);
1419 g_io_channel_unref(data->channel);
1420 data->channel = NULL;
1423 if (data->timeout > 0)
1424 g_source_remove(data->timeout);
1426 if (data->watch_id > 0)
1427 g_source_remove(data->watch_id);
1432 static gboolean rs_timeout_cb(gpointer user_data)
1434 struct xs_cb_data *data = user_data;
1436 DBG("user data %p", user_data);
1441 if (data->callback) {
1442 __connman_inet_rs_cb_t cb = data->callback;
1443 cb(NULL, 0, data->user_data);
1451 static int icmpv6_recv(int fd, struct xs_cb_data *data)
1455 unsigned char chdr[CMSG_BUF_LEN];
1456 unsigned char buf[1540];
1457 struct nd_router_advert *hdr;
1458 struct sockaddr_in6 saddr;
1460 __connman_inet_rs_cb_t cb = data->callback;
1464 iov.iov_len = sizeof(buf);
1467 mhdr.msg_name = (void *)&saddr;
1468 mhdr.msg_namelen = sizeof(struct sockaddr_in6);
1470 mhdr.msg_iov = &iov;
1471 mhdr.msg_iovlen = 1;
1472 mhdr.msg_control = (void *)chdr;
1473 mhdr.msg_controllen = CMSG_BUF_LEN;
1475 len = recvmsg(fd, &mhdr, 0);
1477 cb(NULL, 0, data->user_data);
1481 #if defined TIZEN_EXT
1482 /* Set Received Source Address from router as IPv6 Gateway Address */
1483 char src_addr[INET6_ADDRSTRLEN];
1484 if(inet_ntop(AF_INET6, &(saddr.sin6_addr), src_addr, INET6_ADDRSTRLEN)
1488 DBG("Received Source Address %s from router", src_addr);
1490 /* icmpv6_recv() function can be called in two scenarios :
1491 * 1. When __connman_inet_ipv6_send_rs() is called from check_dhcpv6()
1492 * 2. When __connman_inet_ipv6_send_rs() is called from
1493 * __connman_6to4_probe()
1494 * In the second case it is not required to set DHCPv6 Gateway Address
1495 * as DHCPv6 was not started and network structure was not passed as
1496 * user_data. If it is tried to add Source Address as Gateway Address
1497 * then it will lead to crash because of user_data being ip_address
1498 * instead of network structure. So Adding Gateway Address in case 1st
1501 char *address = data->user_data;
1503 unsigned char buffer[sizeof(struct in6_addr)] = {0, };
1504 /* Checking if user_data is an ip_address */
1505 err = inet_pton(AF_INET, address, buffer);
1506 /* Setting Received Source Address from
1507 * router as Gateway Address */
1509 __connman_network_set_auto_ipv6_gateway(src_addr, data->user_data);
1511 hdr = (struct nd_router_advert *)buf;
1512 DBG("code %d len %zd hdr %zd", hdr->nd_ra_code, len,
1513 sizeof(struct nd_router_advert));
1514 if (hdr->nd_ra_code != 0)
1517 cb(hdr, len, data->user_data);
1522 static gboolean icmpv6_event(GIOChannel *chan, GIOCondition cond, gpointer data)
1525 struct xs_cb_data *xs_data = data;
1529 if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
1532 fd = g_io_channel_unix_get_fd(chan);
1533 ret = icmpv6_recv(fd, xs_data);
1538 xs_cleanup(xs_data);
1542 /* Adapted from RFC 1071 "C" Implementation Example */
1543 static uint16_t csum(const void *phdr, const void *data, socklen_t datalen,
1544 const void *extra_data, socklen_t extra_datalen)
1546 register unsigned long sum = 0;
1551 /* caller must make sure datalen is even */
1553 addr = (uint16_t *)phdr;
1554 for (i = 0; i < 20; i++)
1558 addr = (uint16_t *)data;
1566 count = extra_datalen;
1567 addr = (uint16_t *)extra_data;
1576 sum = (sum & 0xffff) + (sum >> 16);
1578 return (uint16_t)~sum;
1581 static int ndisc_send_unspec(int type, int oif, const struct in6_addr *dest,
1582 const struct in6_addr *source,
1583 unsigned char *buf, size_t len, uint16_t lifetime)
1586 struct in6_addr src;
1587 struct in6_addr dst;
1589 uint8_t reserved[3];
1596 struct icmp6_hdr icmp;
1597 struct nd_neighbor_solicit ns;
1598 struct nd_router_solicit rs;
1599 struct nd_router_advert ra;
1604 struct cmsghdr *cmsg;
1605 struct in6_pktinfo *pinfo;
1606 struct sockaddr_in6 dst, src;
1607 char cbuf[CMSG_SPACE(sizeof(*pinfo))];
1608 struct iovec iov[2];
1609 int fd, datalen, ret, iovlen = 1;
1610 #if defined TIZEN_EXT
1616 fd = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC, IPPROTO_RAW);
1620 memset(&frame, 0, sizeof(frame));
1621 memset(&dst, 0, sizeof(dst));
1623 if (type == ND_ROUTER_SOLICIT)
1624 datalen = sizeof(frame.i.rs); /* 8, csum() safe */
1625 else if (type == ND_ROUTER_ADVERT) {
1626 datalen = sizeof(frame.i.ra); /* 16, csum() safe */
1627 frame.i.ra.nd_ra_router_lifetime = htons(lifetime);
1628 } else if (type == ND_NEIGHBOR_SOLICIT) {
1629 datalen = sizeof(frame.i.ns); /* 24, csum() safe */
1630 memcpy(&frame.i.ns.nd_ns_target, buf, sizeof(struct in6_addr));
1636 dst.sin6_addr = *dest;
1639 src.sin6_addr = *source;
1641 src.sin6_addr = in6addr_any;
1643 /* Fill in the IPv6 header */
1644 frame.ip.ip6_vfc = 0x60;
1645 frame.ip.ip6_plen = htons(datalen + len);
1646 frame.ip.ip6_nxt = IPPROTO_ICMPV6;
1647 frame.ip.ip6_hlim = 255;
1648 frame.ip.ip6_dst = dst.sin6_addr;
1649 frame.ip.ip6_src = src.sin6_addr;
1650 /* all other fields are already set to zero */
1652 /* Prepare pseudo header for csum */
1653 memset(&phdr, 0, sizeof(phdr));
1654 phdr.dst = dst.sin6_addr;
1655 phdr.src = src.sin6_addr;
1656 phdr.plen = htonl(datalen + len);
1657 phdr.nxt = IPPROTO_ICMPV6;
1659 /* Fill in remaining ICMP header fields */
1660 frame.i.icmp.icmp6_type = type;
1661 frame.i.icmp.icmp6_cksum = csum(&phdr, &frame.i, datalen, buf, len);
1663 iov[0].iov_base = &frame;
1664 iov[0].iov_len = sizeof(frame.ip) + datalen;
1667 iov[1].iov_base = buf;
1668 iov[1].iov_len = len;
1672 dst.sin6_family = AF_INET6;
1673 msgh.msg_name = &dst;
1674 msgh.msg_namelen = sizeof(dst);
1676 msgh.msg_iovlen = iovlen;
1679 memset(cbuf, 0, CMSG_SPACE(sizeof(*pinfo)));
1680 cmsg = (struct cmsghdr *)cbuf;
1681 pinfo = (struct in6_pktinfo *)CMSG_DATA(cmsg);
1682 pinfo->ipi6_ifindex = oif;
1684 cmsg->cmsg_len = CMSG_LEN(sizeof(*pinfo));
1685 cmsg->cmsg_level = IPPROTO_IPV6;
1686 cmsg->cmsg_type = IPV6_PKTINFO;
1687 msgh.msg_control = cmsg;
1688 msgh.msg_controllen = cmsg->cmsg_len;
1690 ret = sendmsg(fd, &msgh, 0);
1691 #if defined TIZEN_EXT
1692 DBG("sendmsg errno: %d/%s", errno, strerror_r(errno, ebuf, sizeof(ebuf)));
1699 static inline void ipv6_addr_set(struct in6_addr *addr,
1700 uint32_t w1, uint32_t w2,
1701 uint32_t w3, uint32_t w4)
1703 addr->s6_addr32[0] = w1;
1704 addr->s6_addr32[1] = w2;
1705 addr->s6_addr32[2] = w3;
1706 addr->s6_addr32[3] = w4;
1709 static inline void ipv6_addr_solict_mult(const struct in6_addr *addr,
1710 struct in6_addr *solicited)
1712 ipv6_addr_set(solicited, htonl(0xFF020000), 0, htonl(0x1),
1713 htonl(0xFF000000) | addr->s6_addr32[3]);
1716 static int if_mc_group(int sock, int ifindex, const struct in6_addr *mc_addr,
1719 unsigned int val = 0;
1720 struct ipv6_mreq mreq;
1723 memset(&mreq, 0, sizeof(mreq));
1724 mreq.ipv6mr_interface = ifindex;
1725 mreq.ipv6mr_multiaddr = *mc_addr;
1727 ret = setsockopt(sock, IPPROTO_IPV6, IPV6_MULTICAST_LOOP,
1731 DBG("Cannot set IPV6_MULTICAST_LOOP %d/%s", ret,
1736 ret = setsockopt(sock, IPPROTO_IPV6, cmd, &mreq, sizeof(mreq));
1739 DBG("Cannot set option %d %d/%s", cmd, ret, strerror(-ret));
1746 int __connman_inet_ipv6_send_rs(int index, int timeout,
1747 __connman_inet_rs_cb_t callback, void *user_data)
1749 struct xs_cb_data *data;
1750 struct icmp6_filter filter;
1751 struct in6_addr solicit;
1752 struct in6_addr dst = in6addr_all_routers_mc;
1758 data = g_try_malloc0(sizeof(struct xs_cb_data));
1762 data->callback = callback;
1763 data->user_data = user_data;
1764 data->timeout = g_timeout_add_seconds(timeout, rs_timeout_cb, data);
1766 sk = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC, IPPROTO_ICMPV6);
1772 ICMP6_FILTER_SETBLOCKALL(&filter);
1773 ICMP6_FILTER_SETPASS(ND_ROUTER_ADVERT, &filter);
1775 setsockopt(sk, IPPROTO_ICMPV6, ICMP6_FILTER, &filter,
1776 sizeof(struct icmp6_filter));
1778 ipv6_addr_solict_mult(&dst, &solicit);
1779 if_mc_group(sk, index, &in6addr_all_nodes_mc, IPV6_JOIN_GROUP);
1780 if_mc_group(sk, index, &solicit, IPV6_JOIN_GROUP);
1782 data->channel = g_io_channel_unix_new(sk);
1783 g_io_channel_set_close_on_unref(data->channel, TRUE);
1785 g_io_channel_set_encoding(data->channel, NULL, NULL);
1786 g_io_channel_set_buffered(data->channel, FALSE);
1788 data->watch_id = g_io_add_watch(data->channel,
1789 G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
1790 icmpv6_event, data);
1792 ndisc_send_unspec(ND_ROUTER_SOLICIT, index, &dst, NULL, NULL, 0, 0);
1797 static inline void ipv6_addr_advert_mult(const struct in6_addr *addr,
1798 struct in6_addr *advert)
1800 ipv6_addr_set(advert, htonl(0xFF020000), 0, htonl(0x2),
1801 htonl(0xFF000000) | addr->s6_addr32[3]);
1804 #define MSG_SIZE_SEND 1452
1806 static int inc_len(int len, int inc)
1808 if (len > MSG_SIZE_SEND)
1815 int __connman_inet_ipv6_send_ra(int index, struct in6_addr *src_addr,
1816 GSList *prefixes, int router_lifetime)
1819 struct in6_addr src, *source;
1820 struct in6_addr dst = in6addr_all_nodes_mc;
1821 GDHCPIAPrefix *prefix;
1822 unsigned char buf[MSG_SIZE_SEND];
1823 char addr_str[INET6_ADDRSTRLEN];
1830 sk = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC, IPPROTO_ICMPV6);
1835 __connman_inet_get_interface_ll_address(index, AF_INET6, &src);
1840 DBG("sock %d index %d prefixes %p src %s lifetime %d", sk, index,
1841 prefixes, inet_ntop(AF_INET6, source, addr_str,
1845 memset(buf, 0, MSG_SIZE_SEND);
1848 for (list = prefixes; list; list = list->next) {
1849 struct nd_opt_prefix_info *pinfo;
1851 prefix = list->data;
1852 pinfo = (struct nd_opt_prefix_info *)(buf + len);
1854 len = inc_len(len, sizeof(*pinfo));
1860 pinfo->nd_opt_pi_type = ND_OPT_PREFIX_INFORMATION;
1861 pinfo->nd_opt_pi_len = 4;
1862 pinfo->nd_opt_pi_prefix_len = prefix->prefixlen;
1863 pinfo->nd_opt_pi_flags_reserved = ND_OPT_PI_FLAG_ONLINK;
1864 pinfo->nd_opt_pi_flags_reserved |= ND_OPT_PI_FLAG_AUTO;
1865 if (router_lifetime > 0) {
1866 pinfo->nd_opt_pi_valid_time = htonl(prefix->valid);
1867 pinfo->nd_opt_pi_preferred_time =
1868 htonl(prefix->preferred);
1870 pinfo->nd_opt_pi_reserved2 = 0;
1872 memcpy(&pinfo->nd_opt_pi_prefix, &prefix->prefix,
1873 sizeof(struct in6_addr));
1875 DBG("[%d] index %d prefix %s/%d", count, index,
1876 inet_ntop(AF_INET6, &prefix->prefix, addr_str,
1877 INET6_ADDRSTRLEN), prefix->prefixlen);
1883 err = ndisc_send_unspec(ND_ROUTER_ADVERT, index, &dst, source,
1884 buf, len, router_lifetime);
1886 DBG("cannot send RA %d/%s", err, strerror(-err));
1894 void __connman_inet_ipv6_stop_recv_rs(void *context)
1899 xs_cleanup(context);
1902 static int icmpv6_rs_recv(int fd, struct xs_cb_data *data)
1906 unsigned char chdr[CMSG_BUF_LEN];
1907 unsigned char buf[1540];
1908 struct nd_router_solicit *hdr;
1909 struct sockaddr_in6 saddr;
1911 __connman_inet_recv_rs_cb_t cb = data->callback;
1915 iov.iov_len = sizeof(buf);
1918 mhdr.msg_name = (void *)&saddr;
1919 mhdr.msg_namelen = sizeof(struct sockaddr_in6);
1921 mhdr.msg_iov = &iov;
1922 mhdr.msg_iovlen = 1;
1923 mhdr.msg_control = (void *)chdr;
1924 mhdr.msg_controllen = CMSG_BUF_LEN;
1926 len = recvmsg(fd, &mhdr, 0);
1928 cb(NULL, 0, data->user_data);
1932 hdr = (struct nd_router_solicit *)buf;
1933 DBG("code %d len %zd hdr %zd", hdr->nd_rs_code, len,
1934 sizeof(struct nd_router_solicit));
1935 if (hdr->nd_rs_code != 0)
1938 cb(hdr, len, data->user_data);
1942 static gboolean icmpv6_rs_event(GIOChannel *chan, GIOCondition cond,
1946 struct xs_cb_data *xs_data = data;
1950 if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
1953 fd = g_io_channel_unix_get_fd(chan);
1954 ret = icmpv6_rs_recv(fd, xs_data);
1959 xs_data->watch_id = 0;
1963 int __connman_inet_ipv6_start_recv_rs(int index,
1964 __connman_inet_recv_rs_cb_t callback,
1968 struct xs_cb_data *data;
1969 struct icmp6_filter filter;
1970 char addr_str[INET6_ADDRSTRLEN];
1973 data = g_try_malloc0(sizeof(struct xs_cb_data));
1977 data->callback = callback;
1978 data->user_data = user_data;
1980 sk = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC, IPPROTO_ICMPV6);
1988 ICMP6_FILTER_SETBLOCKALL(&filter);
1989 ICMP6_FILTER_SETPASS(ND_ROUTER_SOLICIT, &filter);
1991 setsockopt(sk, IPPROTO_ICMPV6, ICMP6_FILTER, &filter,
1992 sizeof(struct icmp6_filter));
1994 err = if_mc_group(sk, index, &in6addr_all_routers_mc, IPV6_JOIN_GROUP);
1996 DBG("Cannot join mc %s %d/%s", inet_ntop(AF_INET6,
1997 &in6addr_all_routers_mc, addr_str, INET6_ADDRSTRLEN),
1998 err, strerror(-err));
2000 data->channel = g_io_channel_unix_new(sk);
2001 g_io_channel_set_close_on_unref(data->channel, TRUE);
2003 g_io_channel_set_encoding(data->channel, NULL, NULL);
2004 g_io_channel_set_buffered(data->channel, FALSE);
2006 data->watch_id = g_io_add_watch(data->channel,
2007 G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
2008 icmpv6_rs_event, data);
2015 static gboolean ns_timeout_cb(gpointer user_data)
2017 struct xs_cb_data *data = user_data;
2019 DBG("user data %p", user_data);
2024 if (data->callback) {
2025 __connman_inet_ns_cb_t cb = data->callback;
2026 cb(NULL, 0, &data->addr.sin6_addr, data->user_data);
2034 static int icmpv6_nd_recv(int fd, struct xs_cb_data *data)
2038 unsigned char chdr[CMSG_BUF_LEN];
2039 unsigned char buf[1540];
2040 struct nd_neighbor_advert *hdr;
2041 struct sockaddr_in6 saddr;
2043 __connman_inet_ns_cb_t cb = data->callback;
2047 iov.iov_len = sizeof(buf);
2050 mhdr.msg_name = (void *)&saddr;
2051 mhdr.msg_namelen = sizeof(struct sockaddr_in6);
2053 mhdr.msg_iov = &iov;
2054 mhdr.msg_iovlen = 1;
2055 mhdr.msg_control = (void *)chdr;
2056 mhdr.msg_controllen = CMSG_BUF_LEN;
2058 len = recvmsg(fd, &mhdr, 0);
2060 cb(NULL, 0, &data->addr.sin6_addr, data->user_data);
2064 hdr = (struct nd_neighbor_advert *)buf;
2065 DBG("code %d len %zd hdr %zd", hdr->nd_na_code, len,
2066 sizeof(struct nd_neighbor_advert));
2067 if (hdr->nd_na_code != 0)
2071 * We can receive any neighbor advertisement so we need to check if the
2072 * packet was meant for us and ignore the packet otherwise.
2074 if (memcmp(&data->addr.sin6_addr, &hdr->nd_na_target,
2075 sizeof(struct in6_addr)))
2078 cb(hdr, len, &data->addr.sin6_addr, data->user_data);
2083 static gboolean icmpv6_nd_event(GIOChannel *chan, GIOCondition cond,
2087 struct xs_cb_data *xs_data = data;
2091 if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
2094 fd = g_io_channel_unix_get_fd(chan);
2095 ret = icmpv6_nd_recv(fd, xs_data);
2100 xs_cleanup(xs_data);
2104 int __connman_inet_ipv6_do_dad(int index, int timeout_ms,
2105 struct in6_addr *addr,
2106 __connman_inet_ns_cb_t callback,
2109 struct xs_cb_data *data;
2110 struct icmp6_filter filter;
2111 struct in6_addr solicit;
2112 int sk, err, val = 1;
2114 if (timeout_ms <= 0)
2117 data = g_try_malloc0(sizeof(struct xs_cb_data));
2121 data->callback = callback;
2122 data->user_data = user_data;
2123 data->timeout = g_timeout_add_full(G_PRIORITY_DEFAULT,
2128 memcpy(&data->addr.sin6_addr, addr, sizeof(struct in6_addr));
2130 sk = socket(AF_INET6, SOCK_RAW | SOCK_CLOEXEC, IPPROTO_ICMPV6);
2136 ICMP6_FILTER_SETBLOCKALL(&filter);
2137 ICMP6_FILTER_SETPASS(ND_NEIGHBOR_ADVERT, &filter);
2139 setsockopt(sk, IPPROTO_ICMPV6, ICMP6_FILTER, &filter,
2140 sizeof(struct icmp6_filter));
2142 if (setsockopt(sk, IPPROTO_IPV6, IPV6_RECVPKTINFO,
2143 &val, sizeof(val)) < 0) {
2145 DBG("Cannot set IPV6_RECVPKTINFO %d/%s", err,
2151 if (setsockopt(sk, IPPROTO_IPV6, IPV6_RECVHOPLIMIT,
2152 &val, sizeof(val)) < 0) {
2154 DBG("Cannot set IPV6_RECVHOPLIMIT %d/%s", err,
2161 setsockopt(sk, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &val, sizeof(val));
2163 ipv6_addr_solict_mult(addr, &solicit);
2164 if_mc_group(sk, index, &in6addr_all_nodes_mc, IPV6_JOIN_GROUP);
2165 if_mc_group(sk, index, &solicit, IPV6_JOIN_GROUP);
2167 data->channel = g_io_channel_unix_new(sk);
2168 g_io_channel_set_close_on_unref(data->channel, TRUE);
2170 g_io_channel_set_encoding(data->channel, NULL, NULL);
2171 g_io_channel_set_buffered(data->channel, FALSE);
2173 data->watch_id = g_io_add_watch(data->channel,
2174 G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
2175 icmpv6_nd_event, data);
2177 err = ndisc_send_unspec(ND_NEIGHBOR_SOLICIT, index, &solicit, NULL,
2178 (unsigned char *)addr, 0, 0);
2180 DBG("Cannot send NS %d/%s", err, strerror(-err));
2187 GSList *__connman_inet_ipv6_get_prefixes(struct nd_router_advert *hdr,
2188 unsigned int length)
2190 GSList *prefixes = NULL;
2194 if (length <= sizeof(struct nd_router_advert))
2197 len = length - sizeof(struct nd_router_advert);
2198 pos = (uint8_t *)hdr + sizeof(struct nd_router_advert);
2201 struct nd_opt_prefix_info *pinfo;
2202 char prefix_str[INET6_ADDRSTRLEN+1], *str;
2209 optlen = pos[1] << 3;
2210 if (optlen == 0 || optlen > len)
2214 case ND_OPT_PREFIX_INFORMATION:
2215 pinfo = (struct nd_opt_prefix_info *)pos;
2216 prefix = inet_ntop(AF_INET6, &pinfo->nd_opt_pi_prefix,
2217 prefix_str, INET6_ADDRSTRLEN);
2221 str = g_strdup_printf("%s/%d", prefix,
2222 pinfo->nd_opt_pi_prefix_len);
2223 prefixes = g_slist_prepend(prefixes, str);
2225 DBG("prefix %s", str);
2237 static int get_dest_addr(int family, int index, char *buf, int len)
2243 sk = socket(family, SOCK_DGRAM | SOCK_CLOEXEC, 0);
2247 memset(&ifr, 0, sizeof(ifr));
2248 ifr.ifr_ifindex = index;
2250 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0) {
2251 DBG("SIOCGIFNAME (%d/%s)", errno, strerror(errno));
2256 if (ioctl(sk, SIOCGIFFLAGS, &ifr) < 0) {
2257 DBG("SIOCGIFFLAGS (%d/%s)", errno, strerror(errno));
2262 if ((ifr.ifr_flags & IFF_POINTOPOINT) == 0) {
2268 DBG("index %d %s", index, ifr.ifr_name);
2270 if (ioctl(sk, SIOCGIFDSTADDR, &ifr) < 0) {
2271 connman_error("Get destination address failed (%s)",
2281 addr = &((struct sockaddr_in *)&ifr.ifr_dstaddr)->sin_addr;
2284 addr = &((struct sockaddr_in6 *)&ifr.ifr_dstaddr)->sin6_addr;
2291 if (!inet_ntop(family, addr, buf, len)) {
2292 DBG("error %d/%s", errno, strerror(errno));
2299 int connman_inet_get_dest_addr(int index, char **dest)
2301 char addr[INET_ADDRSTRLEN];
2304 ret = get_dest_addr(PF_INET, index, addr, INET_ADDRSTRLEN);
2308 *dest = g_strdup(addr);
2310 DBG("destination %s", *dest);
2315 int connman_inet_ipv6_get_dest_addr(int index, char **dest)
2317 char addr[INET6_ADDRSTRLEN];
2320 ret = get_dest_addr(PF_INET6, index, addr, INET6_ADDRSTRLEN);
2324 *dest = g_strdup(addr);
2326 DBG("destination %s", *dest);
2331 int __connman_inet_rtnl_open(struct __connman_inet_rtnl_handle *rth)
2334 int rcvbuf = 1024 * 4;
2336 rth->fd = socket(AF_NETLINK, SOCK_RAW | SOCK_CLOEXEC, NETLINK_ROUTE);
2338 connman_error("Can not open netlink socket: %s",
2343 if (setsockopt(rth->fd, SOL_SOCKET, SO_SNDBUF, &sndbuf,
2344 sizeof(sndbuf)) < 0) {
2345 connman_error("SO_SNDBUF: %s", strerror(errno));
2349 if (setsockopt(rth->fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf,
2350 sizeof(rcvbuf)) < 0) {
2351 connman_error("SO_RCVBUF: %s", strerror(errno));
2355 memset(&rth->local, 0, sizeof(rth->local));
2356 rth->local.nl_family = AF_NETLINK;
2357 rth->local.nl_groups = 0;
2359 if (bind(rth->fd, (struct sockaddr *)&rth->local,
2360 sizeof(rth->local)) < 0) {
2361 connman_error("Can not bind netlink socket: %s",
2366 rth->seq = time(NULL);
2368 DBG("fd %d", rth->fd);
2373 struct inet_rtnl_cb_data {
2374 GIOChannel *channel;
2375 __connman_inet_rtnl_cb_t callback;
2378 struct __connman_inet_rtnl_handle *rtnl;
2382 static void inet_rtnl_cleanup(struct inet_rtnl_cb_data *data)
2384 struct __connman_inet_rtnl_handle *rth = data->rtnl;
2386 if (data->channel) {
2387 g_io_channel_shutdown(data->channel, TRUE, NULL);
2388 g_io_channel_unref(data->channel);
2389 data->channel = NULL;
2392 DBG("data %p", data);
2394 if (data->rtnl_timeout > 0)
2395 g_source_remove(data->rtnl_timeout);
2397 if (data->watch_id > 0)
2398 g_source_remove(data->watch_id);
2401 __connman_inet_rtnl_close(rth);
2408 static gboolean inet_rtnl_timeout_cb(gpointer user_data)
2410 struct inet_rtnl_cb_data *data = user_data;
2412 DBG("user data %p", user_data);
2418 data->callback(NULL, data->user_data);
2420 data->rtnl_timeout = 0;
2421 inet_rtnl_cleanup(data);
2425 static int inet_rtnl_recv(GIOChannel *chan, struct inet_rtnl_cb_data *rtnl_data)
2427 struct __connman_inet_rtnl_handle *rth = rtnl_data->rtnl;
2428 struct nlmsghdr *h = NULL;
2429 struct sockaddr_nl nladdr;
2430 socklen_t addr_len = sizeof(nladdr);
2431 unsigned char buf[4096];
2436 memset(buf, 0, sizeof(buf));
2437 memset(&nladdr, 0, sizeof(nladdr));
2439 fd = g_io_channel_unix_get_fd(chan);
2441 status = recvfrom(fd, buf, sizeof(buf), 0,
2442 (struct sockaddr *) &nladdr, &addr_len);
2444 if (errno == EINTR || errno == EAGAIN)
2453 if (nladdr.nl_pid != 0) { /* not sent by kernel, ignore */
2454 DBG("Received msg from %u, ignoring it", nladdr.nl_pid);
2461 struct nlmsgerr *err;
2465 if (!NLMSG_OK(h, len))
2468 if (h->nlmsg_seq != rth->seq) {
2470 DBG("skip %d/%d len %d", rth->seq,
2471 h->nlmsg_seq, h->nlmsg_len);
2473 len -= h->nlmsg_len;
2474 ptr += h->nlmsg_len;
2478 switch (h->nlmsg_type) {
2484 err = (struct nlmsgerr *)NLMSG_DATA(h);
2485 connman_error("RTNETLINK answers %s (%d)",
2486 strerror(-err->error), -err->error);
2493 if (h->nlmsg_seq == rth->seq) {
2494 DBG("received %d seq %d", h->nlmsg_len, h->nlmsg_seq);
2496 rtnl_data->callback(h, rtnl_data->user_data);
2498 inet_rtnl_cleanup(rtnl_data);
2504 static gboolean inet_rtnl_event(GIOChannel *chan, GIOCondition cond,
2508 struct inet_rtnl_cb_data *rtnl_data = user_data;
2512 if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
2515 ret = inet_rtnl_recv(chan, rtnl_data);
2520 rtnl_data->callback(NULL, rtnl_data->user_data);
2521 inet_rtnl_cleanup(rtnl_data);
2525 int __connman_inet_rtnl_talk(struct __connman_inet_rtnl_handle *rtnl,
2526 struct nlmsghdr *n, int timeout,
2527 __connman_inet_rtnl_cb_t callback, void *user_data)
2529 struct sockaddr_nl nladdr;
2530 struct inet_rtnl_cb_data *data;
2533 memset(&nladdr, 0, sizeof(nladdr));
2534 nladdr.nl_family = AF_NETLINK;
2536 n->nlmsg_seq = ++rtnl->seq;
2539 data = g_try_malloc0(sizeof(struct inet_rtnl_cb_data));
2543 data->callback = callback;
2544 data->user_data = user_data;
2546 data->rtnl_timeout = g_timeout_add_seconds(timeout,
2547 inet_rtnl_timeout_cb, data);
2549 data->channel = g_io_channel_unix_new(rtnl->fd);
2551 g_io_channel_set_encoding(data->channel, NULL, NULL);
2552 g_io_channel_set_buffered(data->channel, FALSE);
2554 data->watch_id = g_io_add_watch(data->channel,
2555 G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
2556 inet_rtnl_event, data);
2558 n->nlmsg_flags |= NLM_F_ACK;
2560 err = sendto(rtnl->fd, &rtnl->req.n, rtnl->req.n.nlmsg_len, 0,
2561 (struct sockaddr *) &nladdr, sizeof(nladdr));
2562 DBG("handle %p len %d", rtnl, rtnl->req.n.nlmsg_len);
2564 connman_error("Can not talk to rtnetlink err %d %s",
2565 -errno, strerror(errno));
2569 if ((unsigned int)err != rtnl->req.n.nlmsg_len) {
2570 connman_error("Sent %d bytes, msg truncated", err);
2577 void __connman_inet_rtnl_close(struct __connman_inet_rtnl_handle *rth)
2579 DBG("handle %p", rth);
2587 int __connman_inet_rtnl_addattr32(struct nlmsghdr *n, size_t maxlen, int type,
2590 int len = RTA_LENGTH(4);
2593 if (NLMSG_ALIGN(n->nlmsg_len) + len > maxlen) {
2594 DBG("Error! max allowed bound %zd exceeded", maxlen);
2597 rta = NLMSG_TAIL(n);
2598 rta->rta_type = type;
2600 memcpy(RTA_DATA(rta), &data, 4);
2601 n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + len;
2606 static int parse_rtattr(struct rtattr *tb[], int max,
2607 struct rtattr *rta, int len)
2609 memset(tb, 0, sizeof(struct rtattr *) * (max + 1));
2610 while (RTA_OK(rta, len)) {
2611 if ((rta->rta_type <= max) && (!tb[rta->rta_type]))
2612 tb[rta->rta_type] = rta;
2613 rta = RTA_NEXT(rta, len);
2616 connman_error("Deficit %d, rta_len=%d", len, rta->rta_len);
2621 struct get_route_cb_data {
2622 connman_inet_addr_cb_t callback;
2626 static void get_route_cb(struct nlmsghdr *answer, void *user_data)
2628 struct get_route_cb_data *data = user_data;
2629 struct rtattr *tb[RTA_MAX+1];
2630 struct rtmsg *r = NLMSG_DATA(answer);
2631 int len, index = -1;
2633 const char *addr = NULL;
2635 DBG("answer %p data %p", answer, user_data);
2640 len = answer->nlmsg_len;
2642 if (answer->nlmsg_type != RTM_NEWROUTE &&
2643 answer->nlmsg_type != RTM_DELROUTE) {
2644 connman_error("Not a route: %08x %08x %08x",
2645 answer->nlmsg_len, answer->nlmsg_type,
2646 answer->nlmsg_flags);
2650 len -= NLMSG_LENGTH(sizeof(*r));
2652 connman_error("BUG: wrong nlmsg len %d", len);
2656 parse_rtattr(tb, RTA_MAX, RTM_RTA(r), len);
2659 index = *(int *)RTA_DATA(tb[RTA_OIF]);
2661 if (tb[RTA_GATEWAY])
2662 addr = inet_ntop(r->rtm_family,
2663 RTA_DATA(tb[RTA_GATEWAY]),
2664 abuf, sizeof(abuf));
2666 DBG("addr %s index %d user %p", addr, index, data->user_data);
2669 if (data && data->callback)
2670 data->callback(addr, index, data->user_data);
2676 * Return the interface index that contains route to host.
2678 int __connman_inet_get_route(const char *dest_address,
2679 connman_inet_addr_cb_t callback, void *user_data)
2681 struct get_route_cb_data *data;
2682 struct addrinfo hints, *rp;
2683 struct __connman_inet_rtnl_handle *rth;
2686 DBG("dest %s", dest_address);
2691 memset(&hints, 0, sizeof(hints));
2692 hints.ai_family = AF_UNSPEC;
2693 hints.ai_flags = AI_PASSIVE | AI_NUMERICSERV | AI_NUMERICHOST;
2695 err = getaddrinfo(dest_address, NULL, &hints, &rp);
2699 rth = g_try_malloc0(sizeof(struct __connman_inet_rtnl_handle));
2705 rth->req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
2706 rth->req.n.nlmsg_flags = NLM_F_REQUEST;
2707 rth->req.n.nlmsg_type = RTM_GETROUTE;
2708 rth->req.u.r.rt.rtm_family = rp->ai_family;
2709 rth->req.u.r.rt.rtm_table = 0;
2710 rth->req.u.r.rt.rtm_protocol = 0;
2711 rth->req.u.r.rt.rtm_scope = 0;
2712 rth->req.u.r.rt.rtm_type = 0;
2713 rth->req.u.r.rt.rtm_src_len = 0;
2714 rth->req.u.r.rt.rtm_dst_len = rp->ai_addrlen << 3;
2715 rth->req.u.r.rt.rtm_tos = 0;
2717 __connman_inet_rtnl_addattr_l(&rth->req.n, sizeof(rth->req), RTA_DST,
2718 &rp->ai_addr, rp->ai_addrlen);
2722 err = __connman_inet_rtnl_open(rth);
2726 data = g_try_malloc(sizeof(struct get_route_cb_data));
2732 data->callback = callback;
2733 data->user_data = user_data;
2735 #define GET_ROUTE_TIMEOUT 2
2736 err = __connman_inet_rtnl_talk(rth, &rth->req.n, GET_ROUTE_TIMEOUT,
2737 get_route_cb, data);
2746 __connman_inet_rtnl_close(rth);
2753 int connman_inet_check_ipaddress(const char *host)
2755 struct addrinfo hints;
2756 struct addrinfo *addr;
2759 memset(&hints, 0, sizeof(struct addrinfo));
2760 hints.ai_flags = AI_NUMERICHOST;
2763 result = getaddrinfo(host, NULL, &hints, &addr);
2765 result = addr->ai_family;
2772 /* Check routine modified from ics-dhcp 4.2.3-P2 */
2773 bool connman_inet_check_hostname(const char *ptr, size_t len)
2778 * Not empty or complete length not over 255 characters.
2780 if ((len == 0) || (len > 256))
2784 * Consists of [[:alnum:]-]+ labels separated by [.]
2785 * a [_] is against RFC but seems to be "widely used"
2787 for (p = ptr; (*p != 0) && (len-- > 0); p++) {
2789 if ((*p == '-') || (*p == '_')) {
2791 * Not allowed at begin or end of a label.
2793 if (((p - ptr) == 0) || (len == 0) || (p[1] == '.'))
2796 } else if (*p == '.') {
2798 * Each label has to be 1-63 characters;
2799 * we allow [.] at the end ('foo.bar.')
2803 if ((d <= 0) || (d >= 64))
2806 ptr = p + 1; /* Jump to the next label */
2808 } else if (isalnum((unsigned char)*p) == 0) {
2810 * Also numbers at the begin are fine
2819 char **__connman_inet_get_running_interfaces(void)
2823 struct ifreq *ifr = NULL;
2824 int sk, i, numif, count = 0;
2826 memset(&ifc, 0, sizeof(ifc));
2828 sk = socket(AF_INET, SOCK_DGRAM, 0);
2832 if (ioctl(sk, SIOCGIFCONF, &ifc) < 0)
2836 * Allocate some extra bytes just in case there will
2837 * be new interfaces added between two SIOCGIFCONF
2840 ifr = g_try_malloc0(ifc.ifc_len * 2);
2846 if (ioctl(sk, SIOCGIFCONF, &ifc) < 0)
2849 numif = ifc.ifc_len / sizeof(struct ifreq);
2851 result = g_try_malloc0((numif + 1) * sizeof(char *));
2857 for (i = 0; i < numif; i++) {
2858 struct ifreq *r = &ifr[i];
2859 struct in6_addr *addr6;
2863 * Note that we do not return loopback interfaces here as they
2864 * are not needed for our purposes.
2866 switch (r->ifr_addr.sa_family) {
2868 addr4 = ntohl(((struct sockaddr_in *)
2869 &r->ifr_addr)->sin_addr.s_addr);
2870 if (((addr4 & 0xff000000) >> 24) == 127)
2874 addr6 = &((struct sockaddr_in6 *)
2875 &r->ifr_addr)->sin6_addr;
2876 if (IN6_IS_ADDR_LINKLOCAL(addr6))
2881 result[count++] = g_strdup(r->ifr_name);
2886 if (count < numif) {
2887 char **prev_result = result;
2888 result = g_try_realloc(result, (count + 1) * sizeof(char *));
2890 g_free(prev_result);
2903 bool connman_inet_is_ipv6_supported()
2907 sk = socket(PF_INET6, SOCK_DGRAM | SOCK_CLOEXEC, 0);
2915 int __connman_inet_get_interface_address(int index, int family, void *address)
2917 struct ifaddrs *ifaddr, *ifa;
2919 char name[IF_NAMESIZE];
2921 if (!if_indextoname(index, name))
2924 DBG("index %d interface %s", index, name);
2926 if (getifaddrs(&ifaddr) < 0) {
2928 DBG("Cannot get addresses err %d/%s", err, strerror(-err));
2932 for (ifa = ifaddr; ifa; ifa = ifa->ifa_next) {
2936 if (strncmp(ifa->ifa_name, name, IF_NAMESIZE) == 0 &&
2937 ifa->ifa_addr->sa_family == family) {
2938 if (family == AF_INET) {
2939 struct sockaddr_in *in4 = (struct sockaddr_in *)
2941 if (in4->sin_addr.s_addr == INADDR_ANY)
2943 memcpy(address, &in4->sin_addr,
2944 sizeof(struct in_addr));
2945 } else if (family == AF_INET6) {
2946 struct sockaddr_in6 *in6 =
2947 (struct sockaddr_in6 *)ifa->ifa_addr;
2948 if (memcmp(&in6->sin6_addr, &in6addr_any,
2949 sizeof(struct in6_addr)) == 0)
2951 memcpy(address, &in6->sin6_addr,
2952 sizeof(struct in6_addr));
2965 freeifaddrs(ifaddr);
2969 int __connman_inet_get_interface_mac_address(int index, uint8_t *mac_address)
2975 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
2977 DBG("Open socket error");
2981 memset(&ifr, 0, sizeof(ifr));
2982 ifr.ifr_ifindex = index;
2984 err = ioctl(sk, SIOCGIFNAME, &ifr);
2986 DBG("Get interface name error");
2990 err = ioctl(sk, SIOCGIFHWADDR, &ifr);
2992 DBG("Get MAC address error");
2996 memcpy(mac_address, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
3004 static int iprule_modify(int cmd, int family, uint32_t table_id,
3007 struct __connman_inet_rtnl_handle rth;
3010 memset(&rth, 0, sizeof(rth));
3012 rth.req.n.nlmsg_type = cmd;
3013 rth.req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
3014 rth.req.n.nlmsg_flags = NLM_F_REQUEST;
3015 rth.req.u.r.rt.rtm_family = family;
3016 rth.req.u.r.rt.rtm_protocol = RTPROT_BOOT;
3017 rth.req.u.r.rt.rtm_scope = RT_SCOPE_UNIVERSE;
3018 rth.req.u.r.rt.rtm_table = table_id;
3019 rth.req.u.r.rt.rtm_type = RTN_UNSPEC;
3020 rth.req.u.r.rt.rtm_flags = 0;
3022 if (cmd == RTM_NEWRULE) {
3023 rth.req.n.nlmsg_flags |= NLM_F_CREATE|NLM_F_EXCL;
3024 rth.req.u.r.rt.rtm_type = RTN_UNICAST;
3027 __connman_inet_rtnl_addattr32(&rth.req.n, sizeof(rth.req),
3028 FRA_FWMARK, fwmark);
3030 if (table_id < 256) {
3031 rth.req.u.r.rt.rtm_table = table_id;
3033 rth.req.u.r.rt.rtm_table = RT_TABLE_UNSPEC;
3034 __connman_inet_rtnl_addattr32(&rth.req.n, sizeof(rth.req),
3035 FRA_TABLE, table_id);
3038 if (rth.req.u.r.rt.rtm_family == AF_UNSPEC)
3039 rth.req.u.r.rt.rtm_family = AF_INET;
3041 ret = __connman_inet_rtnl_open(&rth);
3045 ret = __connman_inet_rtnl_send(&rth, &rth.req.n);
3048 __connman_inet_rtnl_close(&rth);
3053 int __connman_inet_add_fwmark_rule(uint32_t table_id, int family, uint32_t fwmark)
3055 /* ip rule add fwmark 9876 table 1234 */
3057 return iprule_modify(RTM_NEWRULE, family, table_id, fwmark);
3060 int __connman_inet_del_fwmark_rule(uint32_t table_id, int family, uint32_t fwmark)
3062 return iprule_modify(RTM_DELRULE, family, table_id, fwmark);
3065 static int iproute_default_modify(int cmd, uint32_t table_id, int ifindex,
3066 const char *gateway, unsigned char prefixlen)
3068 struct __connman_inet_rtnl_handle rth;
3069 unsigned char buf[sizeof(struct in6_addr)];
3071 int family = connman_inet_check_ipaddress(gateway);
3074 DBG("gateway %s/%u table %u", gateway, prefixlen, table_id);
3088 struct in_addr ipv4_subnet_addr, ipv4_mask;
3090 memset(&ipv4_subnet_addr, 0, sizeof(ipv4_subnet_addr));
3091 ipv4_mask.s_addr = htonl((0xffffffff << (32 - prefixlen)) & 0xffffffff);
3092 ipv4_subnet_addr.s_addr = inet_addr(gateway);
3093 ipv4_subnet_addr.s_addr &= ipv4_mask.s_addr;
3095 dst = g_strdup(inet_ntoa(ipv4_subnet_addr));
3098 ret = inet_pton(family, dst ? dst : gateway, buf);
3103 memset(&rth, 0, sizeof(rth));
3105 rth.req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg));
3106 rth.req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL;
3107 rth.req.n.nlmsg_type = cmd;
3108 rth.req.u.r.rt.rtm_family = family;
3109 rth.req.u.r.rt.rtm_table = RT_TABLE_MAIN;
3110 rth.req.u.r.rt.rtm_scope = RT_SCOPE_NOWHERE;
3111 rth.req.u.r.rt.rtm_protocol = RTPROT_BOOT;
3112 rth.req.u.r.rt.rtm_scope = RT_SCOPE_UNIVERSE;
3113 rth.req.u.r.rt.rtm_type = RTN_UNICAST;
3114 rth.req.u.r.rt.rtm_dst_len = prefixlen;
3116 __connman_inet_rtnl_addattr_l(&rth.req.n, sizeof(rth.req),
3117 prefixlen > 0 ? RTA_DST : RTA_GATEWAY, buf, len);
3119 if (table_id < 256) {
3120 rth.req.u.r.rt.rtm_table = table_id;
3122 rth.req.u.r.rt.rtm_table = RT_TABLE_UNSPEC;
3123 __connman_inet_rtnl_addattr32(&rth.req.n, sizeof(rth.req),
3124 RTA_TABLE, table_id);
3127 __connman_inet_rtnl_addattr32(&rth.req.n, sizeof(rth.req),
3130 ret = __connman_inet_rtnl_open(&rth);
3134 ret = __connman_inet_rtnl_send(&rth, &rth.req.n);
3137 __connman_inet_rtnl_close(&rth);
3142 int __connman_inet_add_default_to_table(uint32_t table_id, int ifindex,
3143 const char *gateway)
3145 /* ip route add default via 1.2.3.4 dev wlan0 table 1234 */
3147 return iproute_default_modify(RTM_NEWROUTE, table_id, ifindex, gateway, 0);
3150 int __connman_inet_add_subnet_to_table(uint32_t table_id, int ifindex,
3151 const char *gateway, unsigned char prefixlen)
3153 /* ip route add 1.2.3.4/24 dev eth0 table 1234 */
3154 return iproute_default_modify(RTM_NEWROUTE, table_id, ifindex, gateway, prefixlen);
3157 int __connman_inet_del_default_from_table(uint32_t table_id, int ifindex,
3158 const char *gateway)
3160 /* ip route del default via 1.2.3.4 dev wlan0 table 1234 */
3162 return iproute_default_modify(RTM_DELROUTE, table_id, ifindex, gateway, 0);
3165 int __connman_inet_del_subnet_from_table(uint32_t table_id, int ifindex,
3166 const char *gateway, unsigned char prefixlen)
3168 /* ip route del 1.2.3.4/24 dev eth0 table 1234 */
3169 return iproute_default_modify(RTM_DELROUTE, table_id, ifindex, gateway, prefixlen);
3172 int __connman_inet_get_interface_ll_address(int index, int family,
3175 struct ifaddrs *ifaddr, *ifa;
3177 char name[IF_NAMESIZE];
3179 if (!if_indextoname(index, name))
3182 DBG("index %d interface %s", index, name);
3184 if (getifaddrs(&ifaddr) < 0) {
3186 DBG("Cannot get addresses err %d/%s", err, strerror(-err));
3190 for (ifa = ifaddr; ifa; ifa = ifa->ifa_next) {
3194 if (strncmp(ifa->ifa_name, name, IF_NAMESIZE) == 0 &&
3195 ifa->ifa_addr->sa_family == family) {
3196 if (family == AF_INET) {
3197 struct sockaddr_in *in4 = (struct sockaddr_in *)
3199 if (in4->sin_addr.s_addr == INADDR_ANY)
3201 if ((in4->sin_addr.s_addr & IN_CLASSB_NET) !=
3202 ((in_addr_t) 0xa9fe0000))
3204 memcpy(address, &in4->sin_addr,
3205 sizeof(struct in_addr));
3206 } else if (family == AF_INET6) {
3207 struct sockaddr_in6 *in6 =
3208 (struct sockaddr_in6 *)ifa->ifa_addr;
3209 if (memcmp(&in6->sin6_addr, &in6addr_any,
3210 sizeof(struct in6_addr)) == 0)
3212 if (!IN6_IS_ADDR_LINKLOCAL(&in6->sin6_addr))
3215 memcpy(address, &in6->sin6_addr,
3216 sizeof(struct in6_addr));
3228 freeifaddrs(ifaddr);
3232 int __connman_inet_get_address_netmask(int ifindex,
3233 struct sockaddr_in *address,
3234 struct sockaddr_in *netmask)
3236 int sk, ret = -EINVAL;
3239 DBG("index %d", ifindex);
3241 sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
3245 memset(&ifr, 0, sizeof(ifr));
3246 ifr.ifr_ifindex = ifindex;
3248 if (ioctl(sk, SIOCGIFNAME, &ifr) < 0)
3251 if (ioctl(sk, SIOCGIFNETMASK, &ifr) < 0)
3254 memcpy(netmask, (struct sockaddr_in *)&ifr.ifr_netmask,
3255 sizeof(struct sockaddr_in));
3257 if (ioctl(sk, SIOCGIFADDR, &ifr) < 0)
3260 memcpy(address, (struct sockaddr_in *)&ifr.ifr_addr,
3261 sizeof(struct sockaddr_in));
3269 static int get_nfs_server_ip(const char *cmdline_file, const char *pnp_file,
3270 struct in_addr *addr)
3274 char addrstr[INET_ADDRSTRLEN];
3275 struct in_addr taddr;
3276 GError *error = NULL;
3277 char *cmdline = NULL;
3280 char **pnpent = NULL;
3285 cmdline_file = "/proc/cmdline";
3287 pnp_file = "/proc/net/pnp";
3290 addr->s_addr = INADDR_NONE;
3292 if (!g_file_get_contents(cmdline_file, &cmdline, NULL, &error)) {
3293 connman_error("%s: Cannot read %s %s\n", __func__,
3294 cmdline_file, error->message);
3298 if (g_file_test(pnp_file, G_FILE_TEST_EXISTS)) {
3299 if (!g_file_get_contents(pnp_file, &pnp, NULL, &error)) {
3300 connman_error("%s: Cannot read %s %s\n", __func__,
3301 pnp_file, error->message);
3307 len = strlen(cmdline);
3312 /* remove newline */
3313 if (cmdline[len - 1] == '\n')
3314 cmdline[--len] = '\0';
3316 /* split in arguments (seperated by space) */
3317 args = g_strsplit(cmdline, " ", 0);
3319 connman_error("%s: Cannot split cmdline \"%s\"\n", __func__,
3324 /* split in entries (by newlines) */
3325 pnpent = g_strsplit(pnp, "\n", 0);
3327 connman_error("%s: Cannot split pnp at file \"%s\"\n", __func__,
3332 /* first find root argument */
3333 for (pp = args; *pp; pp++) {
3334 if (!strcmp(*pp, "root=/dev/nfs"))
3337 /* no rootnfs found */
3341 /* locate nfsroot argument */
3342 for (pp = args; *pp; pp++) {
3343 if (!strncmp(*pp, "nfsroot=", strlen("nfsroot=")))
3346 /* no nfsroot argument found */
3350 /* determine if nfsroot server is provided */
3351 nfsargs = strchr(*pp, '=');
3356 /* find whether serverip is present */
3357 s = strchr(nfsargs, ':');
3362 /* no serverip, use bootserver */
3363 for (pp = pnpent; *pp; pp++) {
3364 if (!strncmp(*pp, "bootserver ", strlen("bootserver ")))
3367 /* no bootserver found */
3370 s = *pp + strlen("bootserver ");
3374 /* copy to addr string buffer */
3375 if (len >= sizeof(addrstr)) {
3376 connman_error("%s: Bad server\n", __func__);
3379 memcpy(addrstr, s, len);
3380 addrstr[len] = '\0';
3382 err = inet_pton(AF_INET, addrstr, addr);
3384 connman_error("%s: Cannot convert to numeric addr \"%s\"\n",
3396 g_error_free(error);
3403 /* get interface out of which peer is reachable (IPv4 only) */
3404 static int get_peer_iface(struct in_addr *addr, char *ifname)
3406 struct ifaddrs *ifaddr, *ifa;
3407 struct sockaddr_in saddr, *ifsaddr;
3412 /* Obtain address(es) matching host/port */
3413 err = getifaddrs(&ifaddr);
3415 connman_error("%s: getifaddrs() failed %d (%s)\n",
3416 __func__, errno, strerror(errno));
3420 s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
3422 connman_error("%s: socket() failed %d (%s)\n",
3423 __func__, errno, strerror(errno));
3427 memset(&saddr, 0, sizeof(saddr));
3428 saddr.sin_family = AF_INET;
3429 saddr.sin_port = 0; /* any port */
3430 saddr.sin_addr = *addr;
3432 /* no need to bind, connect will select iface */
3433 err = connect(s, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
3435 connman_error("%s: connect() failed: %d (%s)\n",
3436 __func__, errno, strerror(errno));
3440 socklen = sizeof(saddr);
3441 err = getsockname(s, (struct sockaddr *)&saddr, &socklen);
3443 connman_error("%s: getsockname() failed: %d (%s)\n",
3444 __func__, errno, strerror(errno));
3449 for (ifa = ifaddr; ifa; ifa = ifa->ifa_next) {
3453 /* only IPv4 address */
3454 if (ifa->ifa_addr->sa_family != AF_INET)
3457 ifsaddr = (struct sockaddr_in *)ifa->ifa_addr;
3459 /* match address? */
3460 if (ifsaddr->sin_addr.s_addr == saddr.sin_addr.s_addr)
3467 strcpy(ifname, ifa->ifa_name);
3473 freeifaddrs(ifaddr);
3478 bool __connman_inet_isrootnfs_device(const char *devname)
3480 struct in_addr addr;
3481 char ifname[IFNAMSIZ];
3483 return get_nfs_server_ip(NULL, NULL, &addr) == 0 &&
3484 get_peer_iface(&addr, ifname) == 0 &&
3485 strcmp(devname, ifname) == 0;
3488 char **__connman_inet_get_pnp_nameservers(const char *pnp_file)
3493 GError *error = NULL;
3495 char **pnpent = NULL;
3496 char **nameservers = NULL;
3499 pnp_file = "/proc/net/pnp";
3501 if (!g_file_test(pnp_file, G_FILE_TEST_EXISTS))
3504 if (!g_file_get_contents(pnp_file, &pnp, NULL, &error)) {
3505 connman_error("%s: Cannot read %s %s\n", __func__,
3506 pnp_file, error->message);
3510 /* split in entries (by newlines) */
3511 pnpent = g_strsplit(pnp, "\n", 0);
3513 connman_error("%s: Cannot split pnp \"%s\"\n", __func__,
3519 * Perform two passes to retreive a char ** array of
3520 * nameservers that are not 0.0.0.0
3522 * The first pass counts them, the second fills in the
3527 for (pass = 1; pass <= 2; pass++) {
3529 /* at the start of the second pass allocate */
3531 nameservers = g_new(char *, count + 1);
3534 for (pp = pnpent; *pp; pp++) {
3535 /* match 'nameserver ' at the start of each line */
3536 if (strncmp(*pp, "nameserver ", strlen("nameserver ")))
3539 /* compare it against 0.0.0.0 */
3540 s = *pp + strlen("nameserver ");
3541 if (!strcmp(s, "0.0.0.0"))
3544 /* on second pass fill in array */
3546 nameservers[count] = g_strdup(s);
3550 /* no nameservers? */
3554 /* and terminate char ** array with NULL */
3556 nameservers[count] = NULL;
3564 g_error_free(error);