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 <sys/ioctl.h>
31 #include <arpa/inet.h>
32 #include <netinet/ether.h>
33 #include <net/if_arp.h>
35 #include <linux/netlink.h>
36 #include <linux/rtnetlink.h>
37 #include <linux/wireless.h>
43 #ifndef ARPHDR_PHONET_PIPE
44 #define ARPHDR_PHONET_PIPE (821)
47 #define print(arg...) do { } while (0)
48 //#define print(arg...) connman_info(arg)
53 connman_rtnl_link_cb_t newlink;
57 static GSList *watch_list = NULL;
58 static unsigned int watch_id = 0;
60 static GSList *update_list = NULL;
61 static guint update_interval = G_MAXUINT;
62 static guint update_timeout = 0;
64 struct interface_data {
68 enum connman_service_type service_type;
69 enum connman_device_type device_type;
72 static GHashTable *interface_list = NULL;
74 static void free_interface(gpointer data)
76 struct interface_data *interface = data;
78 __connman_technology_remove_interface(interface->service_type,
79 interface->index, interface->name, interface->ident);
81 g_free(interface->ident);
82 g_free(interface->name);
86 static connman_bool_t ether_blacklisted(const char *name)
91 /* virtual interface from VMware */
92 if (g_str_has_prefix(name, "vmnet") == TRUE)
95 /* virtual interface from VirtualBox */
96 if (g_str_has_prefix(name, "vboxnet") == TRUE)
99 /* virtual interface from Virtual Machine Manager */
100 if (g_str_has_prefix(name, "virbr") == TRUE)
106 static connman_bool_t wext_interface(char *ifname)
111 fd = socket(PF_INET, SOCK_DGRAM, 0);
115 memset(&wrq, 0, sizeof(wrq));
116 strncpy(wrq.ifr_name, ifname, IFNAMSIZ);
118 err = ioctl(fd, SIOCGIWNAME, &wrq);
128 static void read_uevent(struct interface_data *interface)
130 char *filename, line[128];
131 connman_bool_t found_devtype;
134 if (ether_blacklisted(interface->name) == TRUE) {
135 interface->service_type = CONNMAN_SERVICE_TYPE_UNKNOWN;
136 interface->device_type = CONNMAN_DEVICE_TYPE_UNKNOWN;
138 interface->service_type = CONNMAN_SERVICE_TYPE_ETHERNET;
139 interface->device_type = CONNMAN_DEVICE_TYPE_ETHERNET;
142 filename = g_strdup_printf("/sys/class/net/%s/uevent",
145 f = fopen(filename, "re");
152 found_devtype = FALSE;
153 while (fgets(line, sizeof(line), f)) {
156 pos = strchr(line, '\n');
161 if (strncmp(line, "DEVTYPE=", 8) != 0)
164 found_devtype = TRUE;
166 if (strcmp(line + 8, "wlan") == 0) {
167 interface->service_type = CONNMAN_SERVICE_TYPE_WIFI;
168 interface->device_type = CONNMAN_DEVICE_TYPE_WIFI;
169 } else if (strcmp(line + 8, "wwan") == 0) {
170 interface->service_type = CONNMAN_SERVICE_TYPE_CELLULAR;
171 interface->device_type = CONNMAN_DEVICE_TYPE_CELLULAR;
172 } else if (strcmp(line + 8, "bluetooth") == 0) {
173 interface->service_type = CONNMAN_SERVICE_TYPE_BLUETOOTH;
174 interface->device_type = CONNMAN_DEVICE_TYPE_BLUETOOTH;
175 } else if (strcmp(line + 8, "wimax") == 0) {
176 interface->service_type = CONNMAN_SERVICE_TYPE_WIMAX;
177 interface->device_type = CONNMAN_DEVICE_TYPE_WIMAX;
179 interface->service_type = CONNMAN_SERVICE_TYPE_UNKNOWN;
180 interface->device_type = CONNMAN_DEVICE_TYPE_UNKNOWN;
189 /* We haven't got a DEVTYPE, let's check if it's a wireless device */
190 if (wext_interface(interface->name)) {
191 interface->service_type = CONNMAN_SERVICE_TYPE_WIFI;
192 interface->device_type = CONNMAN_DEVICE_TYPE_WIFI;
194 connman_error("%s runs an unsupported 802.11 driver",
199 enum connman_device_type __connman_rtnl_get_device_type(int index)
201 struct interface_data *interface;
203 interface = g_hash_table_lookup(interface_list,
204 GINT_TO_POINTER(index));
205 if (interface == NULL)
206 return CONNMAN_DEVICE_TYPE_UNKNOWN;
208 return interface->device_type;
212 * connman_rtnl_add_newlink_watch:
213 * @index: network device index
214 * @callback: callback function
215 * @user_data: callback data;
217 * Add a new RTNL watch for newlink events
219 * Returns: %0 on failure and a unique id on success
221 unsigned int connman_rtnl_add_newlink_watch(int index,
222 connman_rtnl_link_cb_t callback, void *user_data)
224 struct watch_data *watch;
226 watch = g_try_new0(struct watch_data, 1);
230 watch->id = ++watch_id;
231 watch->index = index;
233 watch->newlink = callback;
234 watch->user_data = user_data;
236 watch_list = g_slist_prepend(watch_list, watch);
238 DBG("id %d", watch->id);
241 unsigned int flags = __connman_ipconfig_get_flags(index);
244 callback(flags, 0, user_data);
251 * connman_rtnl_remove_watch:
252 * @id: watch identifier
254 * Remove the RTNL watch for the identifier
256 void connman_rtnl_remove_watch(unsigned int id)
265 for (list = watch_list; list; list = list->next) {
266 struct watch_data *watch = list->data;
268 if (watch->id == id) {
269 watch_list = g_slist_remove(watch_list, watch);
276 static void trigger_rtnl(int index, void *user_data)
278 struct connman_rtnl *rtnl = user_data;
281 unsigned short type = __connman_ipconfig_get_type(index);
282 unsigned int flags = __connman_ipconfig_get_flags(index);
284 rtnl->newlink(type, index, flags, 0);
287 if (rtnl->newgateway) {
288 const char *gateway = __connman_ipconfig_get_gateway(index);
291 rtnl->newgateway(index, gateway);
295 static GSList *rtnl_list = NULL;
297 static gint compare_priority(gconstpointer a, gconstpointer b)
299 const struct connman_rtnl *rtnl1 = a;
300 const struct connman_rtnl *rtnl2 = b;
302 return rtnl2->priority - rtnl1->priority;
306 * connman_rtnl_register:
309 * Register a new RTNL module
311 * Returns: %0 on success
313 int connman_rtnl_register(struct connman_rtnl *rtnl)
315 DBG("rtnl %p name %s", rtnl, rtnl->name);
317 rtnl_list = g_slist_insert_sorted(rtnl_list, rtnl,
320 __connman_ipconfig_foreach(trigger_rtnl, rtnl);
326 * connman_rtnl_unregister:
329 * Remove a previously registered RTNL module
331 void connman_rtnl_unregister(struct connman_rtnl *rtnl)
333 DBG("rtnl %p name %s", rtnl, rtnl->name);
335 rtnl_list = g_slist_remove(rtnl_list, rtnl);
338 static const char *operstate2str(unsigned char operstate)
341 case IF_OPER_UNKNOWN:
343 case IF_OPER_NOTPRESENT:
344 return "NOT-PRESENT";
347 case IF_OPER_LOWERLAYERDOWN:
348 return "LOWER-LAYER-DOWN";
349 case IF_OPER_TESTING:
351 case IF_OPER_DORMANT:
360 static void extract_link(struct ifinfomsg *msg, int bytes,
361 struct ether_addr *address, const char **ifname,
362 unsigned int *mtu, unsigned char *operstate,
363 struct rtnl_link_stats *stats)
367 for (attr = IFLA_RTA(msg); RTA_OK(attr, bytes);
368 attr = RTA_NEXT(attr, bytes)) {
369 switch (attr->rta_type) {
372 memcpy(address, RTA_DATA(attr), ETH_ALEN);
376 *ifname = RTA_DATA(attr);
380 *mtu = *((unsigned int *) RTA_DATA(attr));
384 memcpy(stats, RTA_DATA(attr),
385 sizeof(struct rtnl_link_stats));
388 if (operstate != NULL)
389 *operstate = *((unsigned char *) RTA_DATA(attr));
397 static void process_newlink(unsigned short type, int index, unsigned flags,
398 unsigned change, struct ifinfomsg *msg, int bytes)
400 struct ether_addr address = {{ 0, 0, 0, 0, 0, 0 }};
401 struct ether_addr compare = {{ 0, 0, 0, 0, 0, 0 }};
402 struct rtnl_link_stats stats;
403 unsigned char operstate = 0xff;
404 const char *ifname = NULL;
405 unsigned int mtu = 0;
406 char ident[13], str[18];
409 memset(&stats, 0, sizeof(stats));
410 extract_link(msg, bytes, &address, &ifname, &mtu, &operstate, &stats);
412 snprintf(ident, 13, "%02x%02x%02x%02x%02x%02x",
413 address.ether_addr_octet[0],
414 address.ether_addr_octet[1],
415 address.ether_addr_octet[2],
416 address.ether_addr_octet[3],
417 address.ether_addr_octet[4],
418 address.ether_addr_octet[5]);
420 snprintf(str, 18, "%02X:%02X:%02X:%02X:%02X:%02X",
421 address.ether_addr_octet[0],
422 address.ether_addr_octet[1],
423 address.ether_addr_octet[2],
424 address.ether_addr_octet[3],
425 address.ether_addr_octet[4],
426 address.ether_addr_octet[5]);
430 case ARPHRD_LOOPBACK:
431 case ARPHDR_PHONET_PIPE:
433 __connman_ipconfig_newlink(index, type, flags,
438 if (memcmp(&address, &compare, ETH_ALEN) != 0)
439 connman_info("%s {newlink} index %d address %s mtu %u",
440 ifname, index, str, mtu);
442 if (operstate != 0xff)
443 connman_info("%s {newlink} index %d operstate %u <%s>",
444 ifname, index, operstate,
445 operstate2str(operstate));
447 if (g_hash_table_lookup(interface_list,
448 GINT_TO_POINTER(index)) == NULL) {
449 struct interface_data *interface;
451 interface = g_new0(struct interface_data, 1);
452 interface->index = index;
453 interface->name = g_strdup(ifname);
454 interface->ident = g_strdup(ident);
456 g_hash_table_insert(interface_list,
457 GINT_TO_POINTER(index), interface);
459 if (type == ARPHRD_ETHER)
460 read_uevent(interface);
462 __connman_technology_add_interface(interface->service_type,
463 interface->index, interface->name, interface->ident);
466 for (list = rtnl_list; list; list = list->next) {
467 struct connman_rtnl *rtnl = list->data;
470 rtnl->newlink(type, index, flags, change);
473 for (list = watch_list; list; list = list->next) {
474 struct watch_data *watch = list->data;
476 if (watch->index != index)
480 watch->newlink(flags, change, watch->user_data);
484 static void process_dellink(unsigned short type, int index, unsigned flags,
485 unsigned change, struct ifinfomsg *msg, int bytes)
487 struct rtnl_link_stats stats;
488 unsigned char operstate = 0xff;
489 const char *ifname = NULL;
492 memset(&stats, 0, sizeof(stats));
493 extract_link(msg, bytes, NULL, &ifname, NULL, &operstate, &stats);
495 if (operstate != 0xff)
496 connman_info("%s {dellink} index %d operstate %u <%s>",
497 ifname, index, operstate,
498 operstate2str(operstate));
500 for (list = rtnl_list; list; list = list->next) {
501 struct connman_rtnl *rtnl = list->data;
504 rtnl->dellink(type, index, flags, change);
509 case ARPHRD_LOOPBACK:
511 __connman_ipconfig_dellink(index, &stats);
515 g_hash_table_remove(interface_list, GINT_TO_POINTER(index));
518 static void extract_ipv4_addr(struct ifaddrmsg *msg, int bytes,
520 struct in_addr *local,
521 struct in_addr *address,
522 struct in_addr *broadcast)
526 for (attr = IFA_RTA(msg); RTA_OK(attr, bytes);
527 attr = RTA_NEXT(attr, bytes)) {
528 switch (attr->rta_type) {
531 *address = *((struct in_addr *) RTA_DATA(attr));
535 *local = *((struct in_addr *) RTA_DATA(attr));
538 if (broadcast != NULL)
539 *broadcast = *((struct in_addr *) RTA_DATA(attr));
543 *label = RTA_DATA(attr);
549 static void extract_ipv6_addr(struct ifaddrmsg *msg, int bytes,
550 struct in6_addr *addr,
551 struct in6_addr *local)
555 for (attr = IFA_RTA(msg); RTA_OK(attr, bytes);
556 attr = RTA_NEXT(attr, bytes)) {
557 switch (attr->rta_type) {
560 *addr = *((struct in6_addr *) RTA_DATA(attr));
564 *local = *((struct in6_addr *) RTA_DATA(attr));
570 static void process_newaddr(unsigned char family, unsigned char prefixlen,
571 int index, struct ifaddrmsg *msg, int bytes)
573 const char *label = NULL;
575 char ip_string[INET6_ADDRSTRLEN];
577 if (family != AF_INET && family != AF_INET6)
580 if (family == AF_INET) {
581 struct in_addr ipv4_addr = { INADDR_ANY };
583 extract_ipv4_addr(msg, bytes, &label, &ipv4_addr, NULL, NULL);
585 } else if (family == AF_INET6) {
586 struct in6_addr ipv6_address, ipv6_local;
588 extract_ipv6_addr(msg, bytes, &ipv6_address, &ipv6_local);
589 if (IN6_IS_ADDR_LINKLOCAL(&ipv6_address))
595 if (inet_ntop(family, src, ip_string, INET6_ADDRSTRLEN) == NULL)
598 __connman_ipconfig_newaddr(index, family, label,
599 prefixlen, ip_string);
602 static void process_deladdr(unsigned char family, unsigned char prefixlen,
603 int index, struct ifaddrmsg *msg, int bytes)
605 const char *label = NULL;
607 char ip_string[INET6_ADDRSTRLEN];
609 if (family != AF_INET && family != AF_INET6)
612 if (family == AF_INET) {
613 struct in_addr ipv4_addr = { INADDR_ANY };
615 extract_ipv4_addr(msg, bytes, &label, &ipv4_addr, NULL, NULL);
617 } else if (family == AF_INET6) {
618 struct in6_addr ipv6_address, ipv6_local;
620 extract_ipv6_addr(msg, bytes, &ipv6_address, &ipv6_local);
621 if (IN6_IS_ADDR_LINKLOCAL(&ipv6_address))
627 if (inet_ntop(family, src, ip_string, INET6_ADDRSTRLEN) == NULL)
630 __connman_ipconfig_deladdr(index, family, label,
631 prefixlen, ip_string);
634 static void extract_route(struct rtmsg *msg, int bytes, int *index,
636 struct in_addr *gateway)
640 for (attr = RTM_RTA(msg); RTA_OK(attr, bytes);
641 attr = RTA_NEXT(attr, bytes)) {
642 switch (attr->rta_type) {
645 *dst = *((struct in_addr *) RTA_DATA(attr));
649 *gateway = *((struct in_addr *) RTA_DATA(attr));
653 *index = *((int *) RTA_DATA(attr));
659 static void process_newroute(unsigned char family, unsigned char scope,
660 struct rtmsg *msg, int bytes)
663 struct in_addr dst = { INADDR_ANY }, gateway = { INADDR_ANY };
664 char dststr[16], gatewaystr[16];
667 if (family != AF_INET)
670 extract_route(msg, bytes, &index, &dst, &gateway);
672 inet_ntop(family, &dst, dststr, sizeof(dststr));
673 inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
675 __connman_ipconfig_newroute(index, family, scope, dststr, gatewaystr);
677 /* skip host specific routes */
678 if (scope != RT_SCOPE_UNIVERSE &&
679 !(scope == RT_SCOPE_LINK && dst.s_addr == INADDR_ANY))
682 if (dst.s_addr != INADDR_ANY)
685 for (list = rtnl_list; list; list = list->next) {
686 struct connman_rtnl *rtnl = list->data;
688 if (rtnl->newgateway)
689 rtnl->newgateway(index, gatewaystr);
693 static void process_delroute(unsigned char family, unsigned char scope,
694 struct rtmsg *msg, int bytes)
697 struct in_addr dst = { INADDR_ANY }, gateway = { INADDR_ANY };
698 char dststr[16], gatewaystr[16];
701 if (family != AF_INET)
704 extract_route(msg, bytes, &index, &dst, &gateway);
706 inet_ntop(family, &dst, dststr, sizeof(dststr));
707 inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
709 __connman_ipconfig_delroute(index, family, scope, dststr, gatewaystr);
711 /* skip host specific routes */
712 if (scope != RT_SCOPE_UNIVERSE &&
713 !(scope == RT_SCOPE_LINK && dst.s_addr == INADDR_ANY))
716 if (dst.s_addr != INADDR_ANY)
719 for (list = rtnl_list; list; list = list->next) {
720 struct connman_rtnl *rtnl = list->data;
722 if (rtnl->delgateway)
723 rtnl->delgateway(index, gatewaystr);
727 static inline void print_ether(struct rtattr *attr, const char *name)
729 int len = (int) RTA_PAYLOAD(attr);
731 if (len == ETH_ALEN) {
732 struct ether_addr eth;
733 memcpy(ð, RTA_DATA(attr), ETH_ALEN);
734 print(" attr %s (len %d) %s\n", name, len, ether_ntoa(ð));
736 print(" attr %s (len %d)\n", name, len);
739 static inline void print_inet(struct rtattr *attr, const char *name,
740 unsigned char family)
742 int len = (int) RTA_PAYLOAD(attr);
744 if (family == AF_INET && len == sizeof(struct in_addr)) {
746 addr = *((struct in_addr *) RTA_DATA(attr));
747 print(" attr %s (len %d) %s\n", name, len, inet_ntoa(addr));
749 print(" attr %s (len %d)\n", name, len);
752 static inline void print_string(struct rtattr *attr, const char *name)
754 print(" attr %s (len %d) %s\n", name, (int) RTA_PAYLOAD(attr),
755 (char *) RTA_DATA(attr));
758 static inline void print_byte(struct rtattr *attr, const char *name)
760 print(" attr %s (len %d) 0x%02x\n", name, (int) RTA_PAYLOAD(attr),
761 *((unsigned char *) RTA_DATA(attr)));
764 static inline void print_integer(struct rtattr *attr, const char *name)
766 print(" attr %s (len %d) %d\n", name, (int) RTA_PAYLOAD(attr),
767 *((int *) RTA_DATA(attr)));
770 static inline void print_attr(struct rtattr *attr, const char *name)
772 int len = (int) RTA_PAYLOAD(attr);
775 print(" attr %s (len %d)\n", name, len);
777 print(" attr %d (len %d)\n", attr->rta_type, len);
780 static void rtnl_link(struct nlmsghdr *hdr)
782 struct ifinfomsg *msg;
786 msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
787 bytes = IFLA_PAYLOAD(hdr);
789 print("ifi_index %d ifi_flags 0x%04x", msg->ifi_index, msg->ifi_flags);
791 for (attr = IFLA_RTA(msg); RTA_OK(attr, bytes);
792 attr = RTA_NEXT(attr, bytes)) {
793 switch (attr->rta_type) {
795 print_ether(attr, "address");
798 print_ether(attr, "broadcast");
801 print_string(attr, "ifname");
804 print_integer(attr, "mtu");
807 print_attr(attr, "link");
810 print_attr(attr, "qdisc");
813 print_attr(attr, "stats");
816 print_attr(attr, "cost");
819 print_attr(attr, "priority");
822 print_attr(attr, "master");
825 print_attr(attr, "wireless");
828 print_attr(attr, "protinfo");
831 print_integer(attr, "txqlen");
834 print_attr(attr, "map");
837 print_attr(attr, "weight");
840 print_byte(attr, "operstate");
843 print_byte(attr, "linkmode");
846 print_attr(attr, NULL);
852 static void rtnl_newlink(struct nlmsghdr *hdr)
854 struct ifinfomsg *msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
858 process_newlink(msg->ifi_type, msg->ifi_index, msg->ifi_flags,
859 msg->ifi_change, msg, IFA_PAYLOAD(hdr));
862 static void rtnl_dellink(struct nlmsghdr *hdr)
864 struct ifinfomsg *msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
868 process_dellink(msg->ifi_type, msg->ifi_index, msg->ifi_flags,
869 msg->ifi_change, msg, IFA_PAYLOAD(hdr));
872 static void rtnl_addr(struct nlmsghdr *hdr)
874 struct ifaddrmsg *msg;
878 msg = (struct ifaddrmsg *) NLMSG_DATA(hdr);
879 bytes = IFA_PAYLOAD(hdr);
881 print("ifa_family %d ifa_index %d", msg->ifa_family, msg->ifa_index);
883 for (attr = IFA_RTA(msg); RTA_OK(attr, bytes);
884 attr = RTA_NEXT(attr, bytes)) {
885 switch (attr->rta_type) {
887 print_inet(attr, "address", msg->ifa_family);
890 print_inet(attr, "local", msg->ifa_family);
893 print_string(attr, "label");
896 print_inet(attr, "broadcast", msg->ifa_family);
899 print_attr(attr, "anycast");
902 print_attr(attr, "cacheinfo");
905 print_attr(attr, "multicast");
908 print_attr(attr, NULL);
914 static void rtnl_newaddr(struct nlmsghdr *hdr)
916 struct ifaddrmsg *msg = (struct ifaddrmsg *) NLMSG_DATA(hdr);
920 process_newaddr(msg->ifa_family, msg->ifa_prefixlen, msg->ifa_index,
921 msg, IFA_PAYLOAD(hdr));
924 static void rtnl_deladdr(struct nlmsghdr *hdr)
926 struct ifaddrmsg *msg = (struct ifaddrmsg *) NLMSG_DATA(hdr);
930 process_deladdr(msg->ifa_family, msg->ifa_prefixlen, msg->ifa_index,
931 msg, IFA_PAYLOAD(hdr));
934 static void rtnl_route(struct nlmsghdr *hdr)
940 msg = (struct rtmsg *) NLMSG_DATA(hdr);
941 bytes = RTM_PAYLOAD(hdr);
943 print("rtm_family %d rtm_table %d rtm_protocol %d",
944 msg->rtm_family, msg->rtm_table, msg->rtm_protocol);
945 print("rtm_scope %d rtm_type %d rtm_flags 0x%04x",
946 msg->rtm_scope, msg->rtm_type, msg->rtm_flags);
948 for (attr = RTM_RTA(msg); RTA_OK(attr, bytes);
949 attr = RTA_NEXT(attr, bytes)) {
950 switch (attr->rta_type) {
952 print_inet(attr, "dst", msg->rtm_family);
955 print_inet(attr, "src", msg->rtm_family);
958 print_string(attr, "iif");
961 print_integer(attr, "oif");
964 print_inet(attr, "gateway", msg->rtm_family);
967 print_attr(attr, "priority");
970 print_inet(attr, "prefsrc", msg->rtm_family);
973 print_attr(attr, "metrics");
976 print_integer(attr, "table");
979 print_attr(attr, NULL);
985 static connman_bool_t is_route_rtmsg(struct rtmsg *msg)
988 if (msg->rtm_table != RT_TABLE_MAIN)
991 if (msg->rtm_protocol != RTPROT_BOOT &&
992 msg->rtm_protocol != RTPROT_KERNEL)
995 if (msg->rtm_type != RTN_UNICAST)
1001 static void rtnl_newroute(struct nlmsghdr *hdr)
1003 struct rtmsg *msg = (struct rtmsg *) NLMSG_DATA(hdr);
1007 if (is_route_rtmsg(msg))
1008 process_newroute(msg->rtm_family, msg->rtm_scope,
1009 msg, RTM_PAYLOAD(hdr));
1012 static void rtnl_delroute(struct nlmsghdr *hdr)
1014 struct rtmsg *msg = (struct rtmsg *) NLMSG_DATA(hdr);
1018 if (is_route_rtmsg(msg))
1019 process_delroute(msg->rtm_family, msg->rtm_scope,
1020 msg, RTM_PAYLOAD(hdr));
1023 static const char *type2string(uint16_t type)
1055 static GIOChannel *channel = NULL;
1057 struct rtnl_request {
1058 struct nlmsghdr hdr;
1059 struct rtgenmsg msg;
1061 #define RTNL_REQUEST_SIZE (sizeof(struct nlmsghdr) + sizeof(struct rtgenmsg))
1063 static GSList *request_list = NULL;
1064 static guint32 request_seq = 0;
1066 static struct rtnl_request *find_request(guint32 seq)
1070 for (list = request_list; list; list = list->next) {
1071 struct rtnl_request *req = list->data;
1073 if (req->hdr.nlmsg_seq == seq)
1080 static int send_request(struct rtnl_request *req)
1082 struct sockaddr_nl addr;
1085 DBG("%s len %d type %d flags 0x%04x seq %d",
1086 type2string(req->hdr.nlmsg_type),
1087 req->hdr.nlmsg_len, req->hdr.nlmsg_type,
1088 req->hdr.nlmsg_flags, req->hdr.nlmsg_seq);
1090 sk = g_io_channel_unix_get_fd(channel);
1092 memset(&addr, 0, sizeof(addr));
1093 addr.nl_family = AF_NETLINK;
1095 return sendto(sk, req, req->hdr.nlmsg_len, 0,
1096 (struct sockaddr *) &addr, sizeof(addr));
1099 static int queue_request(struct rtnl_request *req)
1101 request_list = g_slist_append(request_list, req);
1103 if (g_slist_length(request_list) > 1)
1106 return send_request(req);
1109 static int process_response(guint32 seq)
1111 struct rtnl_request *req;
1115 req = find_request(seq);
1117 request_list = g_slist_remove(request_list, req);
1121 req = g_slist_nth_data(request_list, 0);
1125 return send_request(req);
1128 static void rtnl_message(void *buf, size_t len)
1130 DBG("buf %p len %zd", buf, len);
1133 struct nlmsghdr *hdr = buf;
1134 struct nlmsgerr *err;
1136 if (!NLMSG_OK(hdr, len))
1139 DBG("%s len %d type %d flags 0x%04x seq %d",
1140 type2string(hdr->nlmsg_type),
1141 hdr->nlmsg_len, hdr->nlmsg_type,
1142 hdr->nlmsg_flags, hdr->nlmsg_seq);
1144 switch (hdr->nlmsg_type) {
1149 process_response(hdr->nlmsg_seq);
1152 err = NLMSG_DATA(hdr);
1153 DBG("error %d (%s)", -err->error,
1154 strerror(-err->error));
1176 len -= hdr->nlmsg_len;
1177 buf += hdr->nlmsg_len;
1181 static gboolean netlink_event(GIOChannel *chan,
1182 GIOCondition cond, gpointer data)
1184 unsigned char buf[4096];
1188 if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
1191 memset(buf, 0, sizeof(buf));
1193 err = g_io_channel_read(chan, (gchar *) buf, sizeof(buf), &len);
1195 if (err == G_IO_ERROR_AGAIN)
1200 rtnl_message(buf, len);
1205 static int send_getlink(void)
1207 struct rtnl_request *req;
1211 req = g_try_malloc0(RTNL_REQUEST_SIZE);
1215 req->hdr.nlmsg_len = RTNL_REQUEST_SIZE;
1216 req->hdr.nlmsg_type = RTM_GETLINK;
1217 req->hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
1218 req->hdr.nlmsg_pid = 0;
1219 req->hdr.nlmsg_seq = request_seq++;
1220 req->msg.rtgen_family = AF_INET;
1222 return queue_request(req);
1225 static int send_getaddr(void)
1227 struct rtnl_request *req;
1231 req = g_try_malloc0(RTNL_REQUEST_SIZE);
1235 req->hdr.nlmsg_len = RTNL_REQUEST_SIZE;
1236 req->hdr.nlmsg_type = RTM_GETADDR;
1237 req->hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
1238 req->hdr.nlmsg_pid = 0;
1239 req->hdr.nlmsg_seq = request_seq++;
1240 req->msg.rtgen_family = AF_INET;
1242 return queue_request(req);
1245 static int send_getroute(void)
1247 struct rtnl_request *req;
1251 req = g_try_malloc0(RTNL_REQUEST_SIZE);
1255 req->hdr.nlmsg_len = RTNL_REQUEST_SIZE;
1256 req->hdr.nlmsg_type = RTM_GETROUTE;
1257 req->hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
1258 req->hdr.nlmsg_pid = 0;
1259 req->hdr.nlmsg_seq = request_seq++;
1260 req->msg.rtgen_family = AF_INET;
1262 return queue_request(req);
1265 static gboolean update_timeout_cb(gpointer user_data)
1267 __connman_rtnl_request_update();
1272 static void update_interval_callback(guint min)
1274 if (update_timeout > 0)
1275 g_source_remove(update_timeout);
1277 if (min < G_MAXUINT) {
1278 update_interval = min;
1279 update_timeout = g_timeout_add_seconds(update_interval,
1280 update_timeout_cb, NULL);
1283 update_interval = G_MAXUINT;
1287 static gint compare_interval(gconstpointer a, gconstpointer b)
1289 guint val_a = GPOINTER_TO_UINT(a);
1290 guint val_b = GPOINTER_TO_UINT(b);
1292 return val_a - val_b;
1295 unsigned int __connman_rtnl_update_interval_add(unsigned int interval)
1302 update_list = g_slist_insert_sorted(update_list,
1303 GUINT_TO_POINTER(interval), compare_interval);
1305 min = GPOINTER_TO_UINT(g_slist_nth_data(update_list, 0));
1306 if (min < update_interval) {
1307 update_interval_callback(min);
1308 __connman_rtnl_request_update();
1311 return update_interval;
1314 unsigned int __connman_rtnl_update_interval_remove(unsigned int interval)
1316 guint min = G_MAXUINT;
1321 update_list = g_slist_remove(update_list, GINT_TO_POINTER(interval));
1323 if (update_list != NULL)
1324 min = GPOINTER_TO_UINT(g_slist_nth_data(update_list, 0));
1326 if (min > update_interval)
1327 update_interval_callback(min);
1332 int __connman_rtnl_request_update(void)
1334 return send_getlink();
1337 int __connman_rtnl_init(void)
1339 struct sockaddr_nl addr;
1344 interface_list = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1345 NULL, free_interface);
1347 sk = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE);
1351 memset(&addr, 0, sizeof(addr));
1352 addr.nl_family = AF_NETLINK;
1353 addr.nl_groups = RTMGRP_LINK | RTMGRP_IPV4_IFADDR | RTMGRP_IPV4_ROUTE |
1354 RTMGRP_IPV6_IFADDR | RTMGRP_IPV6_ROUTE;
1356 if (bind(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
1361 channel = g_io_channel_unix_new(sk);
1362 g_io_channel_set_close_on_unref(channel, TRUE);
1364 g_io_add_watch(channel, G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
1365 netlink_event, NULL);
1370 void __connman_rtnl_start(void)
1379 void __connman_rtnl_cleanup(void)
1385 for (list = watch_list; list; list = list->next) {
1386 struct watch_data *watch = list->data;
1388 DBG("removing watch %d", watch->id);
1394 g_slist_free(watch_list);
1397 g_slist_free(update_list);
1400 for (list = request_list; list; list = list->next) {
1401 struct rtnl_request *req = list->data;
1403 DBG("%s len %d type %d flags 0x%04x seq %d",
1404 type2string(req->hdr.nlmsg_type),
1405 req->hdr.nlmsg_len, req->hdr.nlmsg_type,
1406 req->hdr.nlmsg_flags, req->hdr.nlmsg_seq);
1412 g_slist_free(request_list);
1413 request_list = NULL;
1415 g_io_channel_shutdown(channel, TRUE, NULL);
1416 g_io_channel_unref(channel);
1420 g_hash_table_destroy(interface_list);