5 * Copyright (C) 2007-2010 Intel Corporation. All rights reserved.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
29 #include <sys/socket.h>
30 #include <arpa/inet.h>
31 #include <netinet/ether.h>
32 #include <net/if_arp.h>
34 #include <linux/netlink.h>
35 #include <linux/rtnetlink.h>
41 #ifndef ARPHDR_PHONET_PIPE
42 #define ARPHDR_PHONET_PIPE (821)
45 #define print(arg...) do { } while (0)
46 //#define print(arg...) connman_info(arg)
51 connman_rtnl_link_cb_t newlink;
55 static GSList *watch_list = NULL;
56 static unsigned int watch_id = 0;
58 static GSList *update_list = NULL;
59 static guint update_interval = G_MAXUINT;
60 static guint update_timeout = 0;
62 struct interface_data {
66 enum connman_service_type type;
69 static GHashTable *interface_list = NULL;
71 static void free_interface(gpointer data)
73 struct interface_data *interface = data;
75 __connman_technology_remove_interface(interface->type,
76 interface->index, interface->name, interface->ident);
78 g_free(interface->ident);
79 g_free(interface->name);
83 static connman_bool_t ether_blacklisted(const char *name)
88 /* virtual interface from VMware */
89 if (g_str_has_prefix(name, "vmnet") == TRUE)
92 /* virtual interface from VirtualBox */
93 if (g_str_has_prefix(name, "vboxnet") == TRUE)
96 /* virtual interface from Virtual Machine Manager */
97 if (g_str_has_prefix(name, "virbr") == TRUE)
103 static void read_uevent(struct interface_data *interface)
105 char *filename, line[128];
108 if (ether_blacklisted(interface->name) == TRUE)
109 interface->type = CONNMAN_SERVICE_TYPE_UNKNOWN;
111 interface->type = CONNMAN_SERVICE_TYPE_ETHERNET;
113 filename = g_strdup_printf("/sys/class/net/%s/uevent",
116 f = fopen(filename, "re");
123 while (fgets(line, sizeof(line), f)) {
126 pos = strchr(line, '\n');
131 if (strncmp(line, "DEVTYPE=", 8) != 0)
134 if (strcmp(line + 8, "wlan") == 0)
135 interface->type = CONNMAN_SERVICE_TYPE_WIFI;
136 else if (strcmp(line + 8, "wwan") == 0)
137 interface->type = CONNMAN_SERVICE_TYPE_CELLULAR;
138 else if (strcmp(line + 8, "bluetooth") == 0)
139 interface->type = CONNMAN_SERVICE_TYPE_BLUETOOTH;
140 else if (strcmp(line + 8, "wimax") == 0)
141 interface->type = CONNMAN_SERVICE_TYPE_WIMAX;
143 interface->type = CONNMAN_SERVICE_TYPE_UNKNOWN;
150 * connman_rtnl_add_newlink_watch:
151 * @index: network device index
152 * @callback: callback function
153 * @user_data: callback data;
155 * Add a new RTNL watch for newlink events
157 * Returns: %0 on failure and a unique id on success
159 unsigned int connman_rtnl_add_newlink_watch(int index,
160 connman_rtnl_link_cb_t callback, void *user_data)
162 struct watch_data *watch;
164 watch = g_try_new0(struct watch_data, 1);
168 watch->id = ++watch_id;
169 watch->index = index;
171 watch->newlink = callback;
172 watch->user_data = user_data;
174 watch_list = g_slist_prepend(watch_list, watch);
176 DBG("id %d", watch->id);
179 unsigned int flags = __connman_ipconfig_get_flags(index);
182 callback(flags, 0, user_data);
189 * connman_rtnl_remove_watch:
190 * @id: watch identifier
192 * Remove the RTNL watch for the identifier
194 void connman_rtnl_remove_watch(unsigned int id)
203 for (list = watch_list; list; list = list->next) {
204 struct watch_data *watch = list->data;
206 if (watch->id == id) {
207 watch_list = g_slist_remove(watch_list, watch);
214 static void trigger_rtnl(int index, void *user_data)
216 struct connman_rtnl *rtnl = user_data;
219 unsigned short type = __connman_ipconfig_get_type(index);
220 unsigned int flags = __connman_ipconfig_get_flags(index);
222 rtnl->newlink(type, index, flags, 0);
225 if (rtnl->newgateway) {
226 const char *gateway = __connman_ipconfig_get_gateway(index);
229 rtnl->newgateway(index, gateway);
233 static GSList *rtnl_list = NULL;
235 static gint compare_priority(gconstpointer a, gconstpointer b)
237 const struct connman_rtnl *rtnl1 = a;
238 const struct connman_rtnl *rtnl2 = b;
240 return rtnl2->priority - rtnl1->priority;
244 * connman_rtnl_register:
247 * Register a new RTNL module
249 * Returns: %0 on success
251 int connman_rtnl_register(struct connman_rtnl *rtnl)
253 DBG("rtnl %p name %s", rtnl, rtnl->name);
255 rtnl_list = g_slist_insert_sorted(rtnl_list, rtnl,
258 __connman_ipconfig_foreach(trigger_rtnl, rtnl);
264 * connman_rtnl_unregister:
267 * Remove a previously registered RTNL module
269 void connman_rtnl_unregister(struct connman_rtnl *rtnl)
271 DBG("rtnl %p name %s", rtnl, rtnl->name);
273 rtnl_list = g_slist_remove(rtnl_list, rtnl);
276 static const char *operstate2str(unsigned char operstate)
279 case IF_OPER_UNKNOWN:
281 case IF_OPER_NOTPRESENT:
282 return "NOT-PRESENT";
285 case IF_OPER_LOWERLAYERDOWN:
286 return "LOWER-LAYER-DOWN";
287 case IF_OPER_TESTING:
289 case IF_OPER_DORMANT:
298 static void extract_link(struct ifinfomsg *msg, int bytes,
299 struct ether_addr *address, const char **ifname,
300 unsigned int *mtu, unsigned char *operstate,
301 struct rtnl_link_stats *stats)
305 for (attr = IFLA_RTA(msg); RTA_OK(attr, bytes);
306 attr = RTA_NEXT(attr, bytes)) {
307 switch (attr->rta_type) {
310 memcpy(address, RTA_DATA(attr), ETH_ALEN);
314 *ifname = RTA_DATA(attr);
318 *mtu = *((unsigned int *) RTA_DATA(attr));
322 memcpy(stats, RTA_DATA(attr),
323 sizeof(struct rtnl_link_stats));
326 if (operstate != NULL)
327 *operstate = *((unsigned char *) RTA_DATA(attr));
335 static void process_newlink(unsigned short type, int index, unsigned flags,
336 unsigned change, struct ifinfomsg *msg, int bytes)
338 struct ether_addr address = {{ 0, 0, 0, 0, 0, 0 }};
339 struct ether_addr compare = {{ 0, 0, 0, 0, 0, 0 }};
340 struct rtnl_link_stats stats;
341 unsigned char operstate = 0xff;
342 const char *ifname = NULL;
343 unsigned int mtu = 0;
344 char ident[13], str[18];
347 memset(&stats, 0, sizeof(stats));
348 extract_link(msg, bytes, &address, &ifname, &mtu, &operstate, &stats);
350 snprintf(ident, 13, "%02x%02x%02x%02x%02x%02x",
351 address.ether_addr_octet[0],
352 address.ether_addr_octet[1],
353 address.ether_addr_octet[2],
354 address.ether_addr_octet[3],
355 address.ether_addr_octet[4],
356 address.ether_addr_octet[5]);
358 snprintf(str, 18, "%02X:%02X:%02X:%02X:%02X:%02X",
359 address.ether_addr_octet[0],
360 address.ether_addr_octet[1],
361 address.ether_addr_octet[2],
362 address.ether_addr_octet[3],
363 address.ether_addr_octet[4],
364 address.ether_addr_octet[5]);
368 case ARPHRD_LOOPBACK:
369 case ARPHDR_PHONET_PIPE:
371 __connman_ipconfig_newlink(index, type, flags,
376 if (memcmp(&address, &compare, ETH_ALEN) != 0)
377 connman_info("%s {newlink} index %d address %s mtu %u",
378 ifname, index, str, mtu);
380 if (operstate != 0xff)
381 connman_info("%s {newlink} index %d operstate %u <%s>",
382 ifname, index, operstate,
383 operstate2str(operstate));
385 if (g_hash_table_lookup(interface_list,
386 GINT_TO_POINTER(index)) == NULL) {
387 struct interface_data *interface;
389 interface = g_new0(struct interface_data, 1);
390 interface->index = index;
391 interface->name = g_strdup(ifname);
392 interface->ident = g_strdup(ident);
394 g_hash_table_insert(interface_list,
395 GINT_TO_POINTER(index), interface);
397 if (type == ARPHRD_ETHER)
398 read_uevent(interface);
400 __connman_technology_add_interface(interface->type,
401 interface->index, interface->name, interface->ident);
404 for (list = rtnl_list; list; list = list->next) {
405 struct connman_rtnl *rtnl = list->data;
408 rtnl->newlink(type, index, flags, change);
411 for (list = watch_list; list; list = list->next) {
412 struct watch_data *watch = list->data;
414 if (watch->index != index)
418 watch->newlink(flags, change, watch->user_data);
422 static void process_dellink(unsigned short type, int index, unsigned flags,
423 unsigned change, struct ifinfomsg *msg, int bytes)
425 struct rtnl_link_stats stats;
426 unsigned char operstate = 0xff;
427 const char *ifname = NULL;
430 memset(&stats, 0, sizeof(stats));
431 extract_link(msg, bytes, NULL, &ifname, NULL, &operstate, &stats);
433 if (operstate != 0xff)
434 connman_info("%s {dellink} index %d operstate %u <%s>",
435 ifname, index, operstate,
436 operstate2str(operstate));
438 for (list = rtnl_list; list; list = list->next) {
439 struct connman_rtnl *rtnl = list->data;
442 rtnl->dellink(type, index, flags, change);
447 case ARPHRD_LOOPBACK:
449 __connman_ipconfig_dellink(index, &stats);
453 g_hash_table_remove(interface_list, GINT_TO_POINTER(index));
456 static void extract_ipv4_addr(struct ifaddrmsg *msg, int bytes,
458 struct in_addr *local,
459 struct in_addr *address,
460 struct in_addr *broadcast)
464 for (attr = IFA_RTA(msg); RTA_OK(attr, bytes);
465 attr = RTA_NEXT(attr, bytes)) {
466 switch (attr->rta_type) {
469 *address = *((struct in_addr *) RTA_DATA(attr));
473 *local = *((struct in_addr *) RTA_DATA(attr));
476 if (broadcast != NULL)
477 *broadcast = *((struct in_addr *) RTA_DATA(attr));
481 *label = RTA_DATA(attr);
487 static void extract_ipv6_addr(struct ifaddrmsg *msg, int bytes,
488 struct in6_addr *addr,
489 struct in6_addr *local)
493 for (attr = IFA_RTA(msg); RTA_OK(attr, bytes);
494 attr = RTA_NEXT(attr, bytes)) {
495 switch (attr->rta_type) {
498 *addr = *((struct in6_addr *) RTA_DATA(attr));
502 *local = *((struct in6_addr *) RTA_DATA(attr));
508 static void process_newaddr(unsigned char family, unsigned char prefixlen,
509 int index, struct ifaddrmsg *msg, int bytes)
511 const char *label = NULL;
513 char ip_string[INET6_ADDRSTRLEN];
515 if (family != AF_INET && family != AF_INET6)
518 if (family == AF_INET) {
519 struct in_addr ipv4_addr = { INADDR_ANY };
521 extract_ipv4_addr(msg, bytes, &label, &ipv4_addr, NULL, NULL);
523 } else if (family == AF_INET6) {
524 struct in6_addr ipv6_address, ipv6_local;
526 extract_ipv6_addr(msg, bytes, &ipv6_address, &ipv6_local);
527 if (IN6_IS_ADDR_LINKLOCAL(&ipv6_address))
533 if (inet_ntop(family, src, ip_string, INET6_ADDRSTRLEN) == NULL)
536 __connman_ipconfig_newaddr(index, family, label,
537 prefixlen, ip_string);
540 static void process_deladdr(unsigned char family, unsigned char prefixlen,
541 int index, struct ifaddrmsg *msg, int bytes)
543 const char *label = NULL;
545 char ip_string[INET6_ADDRSTRLEN];
547 if (family != AF_INET && family != AF_INET6)
550 if (family == AF_INET) {
551 struct in_addr ipv4_addr = { INADDR_ANY };
553 extract_ipv4_addr(msg, bytes, &label, &ipv4_addr, NULL, NULL);
555 } else if (family == AF_INET6) {
556 struct in6_addr ipv6_address, ipv6_local;
558 extract_ipv6_addr(msg, bytes, &ipv6_address, &ipv6_local);
559 if (IN6_IS_ADDR_LINKLOCAL(&ipv6_address))
565 if (inet_ntop(family, src, ip_string, INET6_ADDRSTRLEN) == NULL)
568 __connman_ipconfig_deladdr(index, family, label,
569 prefixlen, ip_string);
572 static void extract_route(struct rtmsg *msg, int bytes, int *index,
574 struct in_addr *gateway)
578 for (attr = RTM_RTA(msg); RTA_OK(attr, bytes);
579 attr = RTA_NEXT(attr, bytes)) {
580 switch (attr->rta_type) {
583 *dst = *((struct in_addr *) RTA_DATA(attr));
587 *gateway = *((struct in_addr *) RTA_DATA(attr));
591 *index = *((int *) RTA_DATA(attr));
597 static void process_newroute(unsigned char family, unsigned char scope,
598 struct rtmsg *msg, int bytes)
601 struct in_addr dst = { INADDR_ANY }, gateway = { INADDR_ANY };
602 char dststr[16], gatewaystr[16];
605 if (family != AF_INET)
608 extract_route(msg, bytes, &index, &dst, &gateway);
610 inet_ntop(family, &dst, dststr, sizeof(dststr));
611 inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
613 __connman_ipconfig_newroute(index, family, scope, dststr, gatewaystr);
615 /* skip host specific routes */
616 if (scope != RT_SCOPE_UNIVERSE &&
617 !(scope == RT_SCOPE_LINK && dst.s_addr == INADDR_ANY))
620 if (dst.s_addr != INADDR_ANY)
623 for (list = rtnl_list; list; list = list->next) {
624 struct connman_rtnl *rtnl = list->data;
626 if (rtnl->newgateway)
627 rtnl->newgateway(index, gatewaystr);
631 static void process_delroute(unsigned char family, unsigned char scope,
632 struct rtmsg *msg, int bytes)
635 struct in_addr dst = { INADDR_ANY }, gateway = { INADDR_ANY };
636 char dststr[16], gatewaystr[16];
639 if (family != AF_INET)
642 extract_route(msg, bytes, &index, &dst, &gateway);
644 inet_ntop(family, &dst, dststr, sizeof(dststr));
645 inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
647 __connman_ipconfig_delroute(index, family, scope, dststr, gatewaystr);
649 /* skip host specific routes */
650 if (scope != RT_SCOPE_UNIVERSE &&
651 !(scope == RT_SCOPE_LINK && dst.s_addr == INADDR_ANY))
654 if (dst.s_addr != INADDR_ANY)
657 for (list = rtnl_list; list; list = list->next) {
658 struct connman_rtnl *rtnl = list->data;
660 if (rtnl->delgateway)
661 rtnl->delgateway(index, gatewaystr);
665 static inline void print_ether(struct rtattr *attr, const char *name)
667 int len = (int) RTA_PAYLOAD(attr);
669 if (len == ETH_ALEN) {
670 struct ether_addr eth;
671 memcpy(ð, RTA_DATA(attr), ETH_ALEN);
672 print(" attr %s (len %d) %s\n", name, len, ether_ntoa(ð));
674 print(" attr %s (len %d)\n", name, len);
677 static inline void print_inet(struct rtattr *attr, const char *name,
678 unsigned char family)
680 int len = (int) RTA_PAYLOAD(attr);
682 if (family == AF_INET && len == sizeof(struct in_addr)) {
684 addr = *((struct in_addr *) RTA_DATA(attr));
685 print(" attr %s (len %d) %s\n", name, len, inet_ntoa(addr));
687 print(" attr %s (len %d)\n", name, len);
690 static inline void print_string(struct rtattr *attr, const char *name)
692 print(" attr %s (len %d) %s\n", name, (int) RTA_PAYLOAD(attr),
693 (char *) RTA_DATA(attr));
696 static inline void print_byte(struct rtattr *attr, const char *name)
698 print(" attr %s (len %d) 0x%02x\n", name, (int) RTA_PAYLOAD(attr),
699 *((unsigned char *) RTA_DATA(attr)));
702 static inline void print_integer(struct rtattr *attr, const char *name)
704 print(" attr %s (len %d) %d\n", name, (int) RTA_PAYLOAD(attr),
705 *((int *) RTA_DATA(attr)));
708 static inline void print_attr(struct rtattr *attr, const char *name)
710 int len = (int) RTA_PAYLOAD(attr);
713 print(" attr %s (len %d)\n", name, len);
715 print(" attr %d (len %d)\n", attr->rta_type, len);
718 static void rtnl_link(struct nlmsghdr *hdr)
720 struct ifinfomsg *msg;
724 msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
725 bytes = IFLA_PAYLOAD(hdr);
727 print("ifi_index %d ifi_flags 0x%04x", msg->ifi_index, msg->ifi_flags);
729 for (attr = IFLA_RTA(msg); RTA_OK(attr, bytes);
730 attr = RTA_NEXT(attr, bytes)) {
731 switch (attr->rta_type) {
733 print_ether(attr, "address");
736 print_ether(attr, "broadcast");
739 print_string(attr, "ifname");
742 print_integer(attr, "mtu");
745 print_attr(attr, "link");
748 print_attr(attr, "qdisc");
751 print_attr(attr, "stats");
754 print_attr(attr, "cost");
757 print_attr(attr, "priority");
760 print_attr(attr, "master");
763 print_attr(attr, "wireless");
766 print_attr(attr, "protinfo");
769 print_integer(attr, "txqlen");
772 print_attr(attr, "map");
775 print_attr(attr, "weight");
778 print_byte(attr, "operstate");
781 print_byte(attr, "linkmode");
784 print_attr(attr, NULL);
790 static void rtnl_newlink(struct nlmsghdr *hdr)
792 struct ifinfomsg *msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
796 process_newlink(msg->ifi_type, msg->ifi_index, msg->ifi_flags,
797 msg->ifi_change, msg, IFA_PAYLOAD(hdr));
800 static void rtnl_dellink(struct nlmsghdr *hdr)
802 struct ifinfomsg *msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
806 process_dellink(msg->ifi_type, msg->ifi_index, msg->ifi_flags,
807 msg->ifi_change, msg, IFA_PAYLOAD(hdr));
810 static void rtnl_addr(struct nlmsghdr *hdr)
812 struct ifaddrmsg *msg;
816 msg = (struct ifaddrmsg *) NLMSG_DATA(hdr);
817 bytes = IFA_PAYLOAD(hdr);
819 print("ifa_family %d ifa_index %d", msg->ifa_family, msg->ifa_index);
821 for (attr = IFA_RTA(msg); RTA_OK(attr, bytes);
822 attr = RTA_NEXT(attr, bytes)) {
823 switch (attr->rta_type) {
825 print_inet(attr, "address", msg->ifa_family);
828 print_inet(attr, "local", msg->ifa_family);
831 print_string(attr, "label");
834 print_inet(attr, "broadcast", msg->ifa_family);
837 print_attr(attr, "anycast");
840 print_attr(attr, "cacheinfo");
843 print_attr(attr, "multicast");
846 print_attr(attr, NULL);
852 static void rtnl_newaddr(struct nlmsghdr *hdr)
854 struct ifaddrmsg *msg = (struct ifaddrmsg *) NLMSG_DATA(hdr);
858 process_newaddr(msg->ifa_family, msg->ifa_prefixlen, msg->ifa_index,
859 msg, IFA_PAYLOAD(hdr));
862 static void rtnl_deladdr(struct nlmsghdr *hdr)
864 struct ifaddrmsg *msg = (struct ifaddrmsg *) NLMSG_DATA(hdr);
868 process_deladdr(msg->ifa_family, msg->ifa_prefixlen, msg->ifa_index,
869 msg, IFA_PAYLOAD(hdr));
872 static void rtnl_route(struct nlmsghdr *hdr)
878 msg = (struct rtmsg *) NLMSG_DATA(hdr);
879 bytes = RTM_PAYLOAD(hdr);
881 print("rtm_family %d rtm_table %d rtm_protocol %d",
882 msg->rtm_family, msg->rtm_table, msg->rtm_protocol);
883 print("rtm_scope %d rtm_type %d rtm_flags 0x%04x",
884 msg->rtm_scope, msg->rtm_type, msg->rtm_flags);
886 for (attr = RTM_RTA(msg); RTA_OK(attr, bytes);
887 attr = RTA_NEXT(attr, bytes)) {
888 switch (attr->rta_type) {
890 print_inet(attr, "dst", msg->rtm_family);
893 print_inet(attr, "src", msg->rtm_family);
896 print_string(attr, "iif");
899 print_integer(attr, "oif");
902 print_inet(attr, "gateway", msg->rtm_family);
905 print_attr(attr, "priority");
908 print_inet(attr, "prefsrc", msg->rtm_family);
911 print_attr(attr, "metrics");
914 print_integer(attr, "table");
917 print_attr(attr, NULL);
923 static connman_bool_t is_route_rtmsg(struct rtmsg *msg)
926 if (msg->rtm_table != RT_TABLE_MAIN)
929 if (msg->rtm_protocol != RTPROT_BOOT &&
930 msg->rtm_protocol != RTPROT_KERNEL)
933 if (msg->rtm_type != RTN_UNICAST)
939 static void rtnl_newroute(struct nlmsghdr *hdr)
941 struct rtmsg *msg = (struct rtmsg *) NLMSG_DATA(hdr);
945 if (is_route_rtmsg(msg))
946 process_newroute(msg->rtm_family, msg->rtm_scope,
947 msg, RTM_PAYLOAD(hdr));
950 static void rtnl_delroute(struct nlmsghdr *hdr)
952 struct rtmsg *msg = (struct rtmsg *) NLMSG_DATA(hdr);
956 if (is_route_rtmsg(msg))
957 process_delroute(msg->rtm_family, msg->rtm_scope,
958 msg, RTM_PAYLOAD(hdr));
961 static const char *type2string(uint16_t type)
993 static GIOChannel *channel = NULL;
995 struct rtnl_request {
999 #define RTNL_REQUEST_SIZE (sizeof(struct nlmsghdr) + sizeof(struct rtgenmsg))
1001 static GSList *request_list = NULL;
1002 static guint32 request_seq = 0;
1004 static struct rtnl_request *find_request(guint32 seq)
1008 for (list = request_list; list; list = list->next) {
1009 struct rtnl_request *req = list->data;
1011 if (req->hdr.nlmsg_seq == seq)
1018 static int send_request(struct rtnl_request *req)
1020 struct sockaddr_nl addr;
1023 DBG("%s len %d type %d flags 0x%04x seq %d",
1024 type2string(req->hdr.nlmsg_type),
1025 req->hdr.nlmsg_len, req->hdr.nlmsg_type,
1026 req->hdr.nlmsg_flags, req->hdr.nlmsg_seq);
1028 sk = g_io_channel_unix_get_fd(channel);
1030 memset(&addr, 0, sizeof(addr));
1031 addr.nl_family = AF_NETLINK;
1033 return sendto(sk, req, req->hdr.nlmsg_len, 0,
1034 (struct sockaddr *) &addr, sizeof(addr));
1037 static int queue_request(struct rtnl_request *req)
1039 request_list = g_slist_append(request_list, req);
1041 if (g_slist_length(request_list) > 1)
1044 return send_request(req);
1047 static int process_response(guint32 seq)
1049 struct rtnl_request *req;
1053 req = find_request(seq);
1055 request_list = g_slist_remove(request_list, req);
1059 req = g_slist_nth_data(request_list, 0);
1063 return send_request(req);
1066 static void rtnl_message(void *buf, size_t len)
1068 DBG("buf %p len %zd", buf, len);
1071 struct nlmsghdr *hdr = buf;
1072 struct nlmsgerr *err;
1074 if (!NLMSG_OK(hdr, len))
1077 DBG("%s len %d type %d flags 0x%04x seq %d",
1078 type2string(hdr->nlmsg_type),
1079 hdr->nlmsg_len, hdr->nlmsg_type,
1080 hdr->nlmsg_flags, hdr->nlmsg_seq);
1082 switch (hdr->nlmsg_type) {
1087 process_response(hdr->nlmsg_seq);
1090 err = NLMSG_DATA(hdr);
1091 DBG("error %d (%s)", -err->error,
1092 strerror(-err->error));
1114 len -= hdr->nlmsg_len;
1115 buf += hdr->nlmsg_len;
1119 static gboolean netlink_event(GIOChannel *chan,
1120 GIOCondition cond, gpointer data)
1122 unsigned char buf[4096];
1126 if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
1129 memset(buf, 0, sizeof(buf));
1131 err = g_io_channel_read(chan, (gchar *) buf, sizeof(buf), &len);
1133 if (err == G_IO_ERROR_AGAIN)
1138 rtnl_message(buf, len);
1143 static int send_getlink(void)
1145 struct rtnl_request *req;
1149 req = g_try_malloc0(RTNL_REQUEST_SIZE);
1153 req->hdr.nlmsg_len = RTNL_REQUEST_SIZE;
1154 req->hdr.nlmsg_type = RTM_GETLINK;
1155 req->hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
1156 req->hdr.nlmsg_pid = 0;
1157 req->hdr.nlmsg_seq = request_seq++;
1158 req->msg.rtgen_family = AF_INET;
1160 return queue_request(req);
1163 static int send_getaddr(void)
1165 struct rtnl_request *req;
1169 req = g_try_malloc0(RTNL_REQUEST_SIZE);
1173 req->hdr.nlmsg_len = RTNL_REQUEST_SIZE;
1174 req->hdr.nlmsg_type = RTM_GETADDR;
1175 req->hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
1176 req->hdr.nlmsg_pid = 0;
1177 req->hdr.nlmsg_seq = request_seq++;
1178 req->msg.rtgen_family = AF_INET;
1180 return queue_request(req);
1183 static int send_getroute(void)
1185 struct rtnl_request *req;
1189 req = g_try_malloc0(RTNL_REQUEST_SIZE);
1193 req->hdr.nlmsg_len = RTNL_REQUEST_SIZE;
1194 req->hdr.nlmsg_type = RTM_GETROUTE;
1195 req->hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
1196 req->hdr.nlmsg_pid = 0;
1197 req->hdr.nlmsg_seq = request_seq++;
1198 req->msg.rtgen_family = AF_INET;
1200 return queue_request(req);
1203 static gboolean update_timeout_cb(gpointer user_data)
1205 __connman_rtnl_request_update();
1210 static void update_interval_callback(guint min)
1212 if (update_timeout > 0)
1213 g_source_remove(update_timeout);
1215 if (min < G_MAXUINT) {
1216 update_interval = min;
1217 update_timeout = g_timeout_add_seconds(update_interval,
1218 update_timeout_cb, NULL);
1221 update_interval = G_MAXUINT;
1225 static gint compare_interval(gconstpointer a, gconstpointer b)
1227 guint val_a = GPOINTER_TO_UINT(a);
1228 guint val_b = GPOINTER_TO_UINT(b);
1230 return val_a - val_b;
1233 unsigned int __connman_rtnl_update_interval_add(unsigned int interval)
1240 update_list = g_slist_insert_sorted(update_list,
1241 GUINT_TO_POINTER(interval), compare_interval);
1243 min = GPOINTER_TO_UINT(g_slist_nth_data(update_list, 0));
1244 if (min < update_interval) {
1245 update_interval_callback(min);
1246 __connman_rtnl_request_update();
1249 return update_interval;
1252 unsigned int __connman_rtnl_update_interval_remove(unsigned int interval)
1254 guint min = G_MAXUINT;
1259 update_list = g_slist_remove(update_list, GINT_TO_POINTER(interval));
1261 if (update_list != NULL)
1262 min = GPOINTER_TO_UINT(g_slist_nth_data(update_list, 0));
1264 if (min > update_interval)
1265 update_interval_callback(min);
1270 int __connman_rtnl_request_update(void)
1272 return send_getlink();
1275 int __connman_rtnl_init(void)
1277 struct sockaddr_nl addr;
1282 interface_list = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1283 NULL, free_interface);
1285 sk = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE);
1289 memset(&addr, 0, sizeof(addr));
1290 addr.nl_family = AF_NETLINK;
1291 addr.nl_groups = RTMGRP_LINK | RTMGRP_IPV4_IFADDR | RTMGRP_IPV4_ROUTE |
1292 RTMGRP_IPV6_IFADDR | RTMGRP_IPV6_ROUTE;
1294 if (bind(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
1299 channel = g_io_channel_unix_new(sk);
1300 g_io_channel_set_close_on_unref(channel, TRUE);
1302 g_io_add_watch(channel, G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
1303 netlink_event, NULL);
1308 void __connman_rtnl_start(void)
1317 void __connman_rtnl_cleanup(void)
1323 for (list = watch_list; list; list = list->next) {
1324 struct watch_data *watch = list->data;
1326 DBG("removing watch %d", watch->id);
1332 g_slist_free(watch_list);
1335 g_slist_free(update_list);
1338 for (list = request_list; list; list = list->next) {
1339 struct rtnl_request *req = list->data;
1341 DBG("%s len %d type %d flags 0x%04x seq %d",
1342 type2string(req->hdr.nlmsg_type),
1343 req->hdr.nlmsg_len, req->hdr.nlmsg_type,
1344 req->hdr.nlmsg_flags, req->hdr.nlmsg_seq);
1350 g_slist_free(request_list);
1351 request_list = NULL;
1353 g_io_channel_shutdown(channel, TRUE, NULL);
1354 g_io_channel_unref(channel);
1358 g_hash_table_destroy(interface_list);