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 <netinet/icmp6.h>
34 #include <net/if_arp.h>
36 #include <linux/netlink.h>
37 #include <linux/rtnetlink.h>
38 #include <linux/wireless.h>
44 #ifndef ARPHDR_PHONET_PIPE
45 #define ARPHDR_PHONET_PIPE (821)
48 #define print(arg...) do { } while (0)
49 //#define print(arg...) connman_info(arg)
54 connman_rtnl_link_cb_t newlink;
58 static GSList *watch_list = NULL;
59 static unsigned int watch_id = 0;
61 static GSList *update_list = NULL;
62 static guint update_interval = G_MAXUINT;
63 static guint update_timeout = 0;
65 struct interface_data {
69 enum connman_service_type service_type;
70 enum connman_device_type device_type;
73 static GHashTable *interface_list = NULL;
75 static void free_interface(gpointer data)
77 struct interface_data *interface = data;
79 __connman_technology_remove_interface(interface->service_type,
80 interface->index, interface->name, interface->ident);
82 g_free(interface->ident);
83 g_free(interface->name);
87 static connman_bool_t ether_blacklisted(const char *name)
92 /* virtual interface from VMware */
93 if (g_str_has_prefix(name, "vmnet") == TRUE)
96 /* virtual interface from VirtualBox */
97 if (g_str_has_prefix(name, "vboxnet") == TRUE)
100 /* virtual interface from Virtual Machine Manager */
101 if (g_str_has_prefix(name, "virbr") == TRUE)
107 static connman_bool_t wext_interface(char *ifname)
112 fd = socket(PF_INET, SOCK_DGRAM, 0);
116 memset(&wrq, 0, sizeof(wrq));
117 strncpy(wrq.ifr_name, ifname, IFNAMSIZ);
119 err = ioctl(fd, SIOCGIWNAME, &wrq);
129 static void read_uevent(struct interface_data *interface)
131 char *filename, line[128];
132 connman_bool_t found_devtype;
135 if (ether_blacklisted(interface->name) == TRUE) {
136 interface->service_type = CONNMAN_SERVICE_TYPE_UNKNOWN;
137 interface->device_type = CONNMAN_DEVICE_TYPE_UNKNOWN;
139 interface->service_type = CONNMAN_SERVICE_TYPE_ETHERNET;
140 interface->device_type = CONNMAN_DEVICE_TYPE_ETHERNET;
143 filename = g_strdup_printf("/sys/class/net/%s/uevent",
146 f = fopen(filename, "re");
153 found_devtype = FALSE;
154 while (fgets(line, sizeof(line), f)) {
157 pos = strchr(line, '\n');
162 if (strncmp(line, "DEVTYPE=", 8) != 0)
165 found_devtype = TRUE;
167 if (strcmp(line + 8, "wlan") == 0) {
168 interface->service_type = CONNMAN_SERVICE_TYPE_WIFI;
169 interface->device_type = CONNMAN_DEVICE_TYPE_WIFI;
170 } else if (strcmp(line + 8, "wwan") == 0) {
171 interface->service_type = CONNMAN_SERVICE_TYPE_CELLULAR;
172 interface->device_type = CONNMAN_DEVICE_TYPE_CELLULAR;
173 } else if (strcmp(line + 8, "bluetooth") == 0) {
174 interface->service_type = CONNMAN_SERVICE_TYPE_BLUETOOTH;
175 interface->device_type = CONNMAN_DEVICE_TYPE_BLUETOOTH;
176 } else if (strcmp(line + 8, "wimax") == 0) {
177 interface->service_type = CONNMAN_SERVICE_TYPE_WIMAX;
178 interface->device_type = CONNMAN_DEVICE_TYPE_WIMAX;
179 } else if (strcmp(line + 8, "gadget") == 0) {
180 interface->service_type = CONNMAN_SERVICE_TYPE_GADGET;
181 interface->device_type = CONNMAN_DEVICE_TYPE_GADGET;
184 interface->service_type = CONNMAN_SERVICE_TYPE_UNKNOWN;
185 interface->device_type = CONNMAN_DEVICE_TYPE_UNKNOWN;
194 /* We haven't got a DEVTYPE, let's check if it's a wireless device */
195 if (wext_interface(interface->name)) {
196 interface->service_type = CONNMAN_SERVICE_TYPE_WIFI;
197 interface->device_type = CONNMAN_DEVICE_TYPE_WIFI;
199 connman_error("%s runs an unsupported 802.11 driver",
204 enum connman_device_type __connman_rtnl_get_device_type(int index)
206 struct interface_data *interface;
208 interface = g_hash_table_lookup(interface_list,
209 GINT_TO_POINTER(index));
210 if (interface == NULL)
211 return CONNMAN_DEVICE_TYPE_UNKNOWN;
213 return interface->device_type;
217 * connman_rtnl_add_newlink_watch:
218 * @index: network device index
219 * @callback: callback function
220 * @user_data: callback data;
222 * Add a new RTNL watch for newlink events
224 * Returns: %0 on failure and a unique id on success
226 unsigned int connman_rtnl_add_newlink_watch(int index,
227 connman_rtnl_link_cb_t callback, void *user_data)
229 struct watch_data *watch;
231 watch = g_try_new0(struct watch_data, 1);
235 watch->id = ++watch_id;
236 watch->index = index;
238 watch->newlink = callback;
239 watch->user_data = user_data;
241 watch_list = g_slist_prepend(watch_list, watch);
243 DBG("id %d", watch->id);
246 unsigned int flags = __connman_ipconfig_get_flags(index);
249 callback(flags, 0, user_data);
256 * connman_rtnl_remove_watch:
257 * @id: watch identifier
259 * Remove the RTNL watch for the identifier
261 void connman_rtnl_remove_watch(unsigned int id)
270 for (list = watch_list; list; list = list->next) {
271 struct watch_data *watch = list->data;
273 if (watch->id == id) {
274 watch_list = g_slist_remove(watch_list, watch);
281 static void trigger_rtnl(int index, void *user_data)
283 struct connman_rtnl *rtnl = user_data;
286 unsigned short type = __connman_ipconfig_get_type(index);
287 unsigned int flags = __connman_ipconfig_get_flags(index);
289 rtnl->newlink(type, index, flags, 0);
292 if (rtnl->newgateway) {
293 const char *gateway = __connman_ipconfig_get_gateway(index);
296 rtnl->newgateway(index, gateway);
300 static GSList *rtnl_list = NULL;
302 static gint compare_priority(gconstpointer a, gconstpointer b)
304 const struct connman_rtnl *rtnl1 = a;
305 const struct connman_rtnl *rtnl2 = b;
307 return rtnl2->priority - rtnl1->priority;
311 * connman_rtnl_register:
314 * Register a new RTNL module
316 * Returns: %0 on success
318 int connman_rtnl_register(struct connman_rtnl *rtnl)
320 DBG("rtnl %p name %s", rtnl, rtnl->name);
322 rtnl_list = g_slist_insert_sorted(rtnl_list, rtnl,
325 __connman_ipconfig_foreach(trigger_rtnl, rtnl);
331 * connman_rtnl_unregister:
334 * Remove a previously registered RTNL module
336 void connman_rtnl_unregister(struct connman_rtnl *rtnl)
338 DBG("rtnl %p name %s", rtnl, rtnl->name);
340 rtnl_list = g_slist_remove(rtnl_list, rtnl);
343 static const char *operstate2str(unsigned char operstate)
346 case IF_OPER_UNKNOWN:
348 case IF_OPER_NOTPRESENT:
349 return "NOT-PRESENT";
352 case IF_OPER_LOWERLAYERDOWN:
353 return "LOWER-LAYER-DOWN";
354 case IF_OPER_TESTING:
356 case IF_OPER_DORMANT:
365 static void extract_link(struct ifinfomsg *msg, int bytes,
366 struct ether_addr *address, const char **ifname,
367 unsigned int *mtu, unsigned char *operstate,
368 struct rtnl_link_stats *stats)
372 for (attr = IFLA_RTA(msg); RTA_OK(attr, bytes);
373 attr = RTA_NEXT(attr, bytes)) {
374 switch (attr->rta_type) {
377 memcpy(address, RTA_DATA(attr), ETH_ALEN);
381 *ifname = RTA_DATA(attr);
385 *mtu = *((unsigned int *) RTA_DATA(attr));
389 memcpy(stats, RTA_DATA(attr),
390 sizeof(struct rtnl_link_stats));
393 if (operstate != NULL)
394 *operstate = *((unsigned char *) RTA_DATA(attr));
402 static void process_newlink(unsigned short type, int index, unsigned flags,
403 unsigned change, struct ifinfomsg *msg, int bytes)
405 struct ether_addr address = {{ 0, 0, 0, 0, 0, 0 }};
406 struct ether_addr compare = {{ 0, 0, 0, 0, 0, 0 }};
407 struct rtnl_link_stats stats;
408 unsigned char operstate = 0xff;
409 struct interface_data *interface;
410 const char *ifname = NULL;
411 unsigned int mtu = 0;
412 char ident[13], str[18];
415 memset(&stats, 0, sizeof(stats));
416 extract_link(msg, bytes, &address, &ifname, &mtu, &operstate, &stats);
418 snprintf(ident, 13, "%02x%02x%02x%02x%02x%02x",
419 address.ether_addr_octet[0],
420 address.ether_addr_octet[1],
421 address.ether_addr_octet[2],
422 address.ether_addr_octet[3],
423 address.ether_addr_octet[4],
424 address.ether_addr_octet[5]);
426 snprintf(str, 18, "%02X:%02X:%02X:%02X:%02X:%02X",
427 address.ether_addr_octet[0],
428 address.ether_addr_octet[1],
429 address.ether_addr_octet[2],
430 address.ether_addr_octet[3],
431 address.ether_addr_octet[4],
432 address.ether_addr_octet[5]);
436 case ARPHRD_LOOPBACK:
437 case ARPHDR_PHONET_PIPE:
439 __connman_ipconfig_newlink(index, type, flags,
444 if (memcmp(&address, &compare, ETH_ALEN) != 0)
445 connman_info("%s {newlink} index %d address %s mtu %u",
446 ifname, index, str, mtu);
448 if (operstate != 0xff)
449 connman_info("%s {newlink} index %d operstate %u <%s>",
450 ifname, index, operstate,
451 operstate2str(operstate));
453 interface = g_hash_table_lookup(interface_list, GINT_TO_POINTER(index));
454 if (interface == NULL) {
455 interface = g_new0(struct interface_data, 1);
456 interface->index = index;
457 interface->name = g_strdup(ifname);
458 interface->ident = g_strdup(ident);
460 g_hash_table_insert(interface_list,
461 GINT_TO_POINTER(index), interface);
463 if (type == ARPHRD_ETHER)
464 read_uevent(interface);
466 __connman_technology_add_interface(interface->service_type,
467 interface->index, interface->name, interface->ident);
470 for (list = rtnl_list; list; list = list->next) {
471 struct connman_rtnl *rtnl = list->data;
474 rtnl->newlink(type, index, flags, change);
477 for (list = watch_list; list; list = list->next) {
478 struct watch_data *watch = list->data;
480 if (watch->index != index)
484 watch->newlink(flags, change, watch->user_data);
488 static void process_dellink(unsigned short type, int index, unsigned flags,
489 unsigned change, struct ifinfomsg *msg, int bytes)
491 struct rtnl_link_stats stats;
492 unsigned char operstate = 0xff;
493 const char *ifname = NULL;
496 memset(&stats, 0, sizeof(stats));
497 extract_link(msg, bytes, NULL, &ifname, NULL, &operstate, &stats);
499 if (operstate != 0xff)
500 connman_info("%s {dellink} index %d operstate %u <%s>",
501 ifname, index, operstate,
502 operstate2str(operstate));
504 for (list = rtnl_list; list; list = list->next) {
505 struct connman_rtnl *rtnl = list->data;
508 rtnl->dellink(type, index, flags, change);
513 case ARPHRD_LOOPBACK:
515 __connman_ipconfig_dellink(index, &stats);
519 g_hash_table_remove(interface_list, GINT_TO_POINTER(index));
522 static void extract_ipv4_addr(struct ifaddrmsg *msg, int bytes,
524 struct in_addr *local,
525 struct in_addr *address,
526 struct in_addr *broadcast)
530 for (attr = IFA_RTA(msg); RTA_OK(attr, bytes);
531 attr = RTA_NEXT(attr, bytes)) {
532 switch (attr->rta_type) {
535 *address = *((struct in_addr *) RTA_DATA(attr));
539 *local = *((struct in_addr *) RTA_DATA(attr));
542 if (broadcast != NULL)
543 *broadcast = *((struct in_addr *) RTA_DATA(attr));
547 *label = RTA_DATA(attr);
553 static void extract_ipv6_addr(struct ifaddrmsg *msg, int bytes,
554 struct in6_addr *addr,
555 struct in6_addr *local)
559 for (attr = IFA_RTA(msg); RTA_OK(attr, bytes);
560 attr = RTA_NEXT(attr, bytes)) {
561 switch (attr->rta_type) {
564 *addr = *((struct in6_addr *) RTA_DATA(attr));
568 *local = *((struct in6_addr *) RTA_DATA(attr));
574 static void process_newaddr(unsigned char family, unsigned char prefixlen,
575 int index, struct ifaddrmsg *msg, int bytes)
577 const char *label = NULL;
579 char ip_string[INET6_ADDRSTRLEN];
581 if (family != AF_INET && family != AF_INET6)
584 if (family == AF_INET) {
585 struct in_addr ipv4_addr = { INADDR_ANY };
587 extract_ipv4_addr(msg, bytes, &label, &ipv4_addr, NULL, NULL);
589 } else if (family == AF_INET6) {
590 struct in6_addr ipv6_address, ipv6_local;
592 extract_ipv6_addr(msg, bytes, &ipv6_address, &ipv6_local);
593 if (IN6_IS_ADDR_LINKLOCAL(&ipv6_address))
599 if (inet_ntop(family, src, ip_string, INET6_ADDRSTRLEN) == NULL)
602 __connman_ipconfig_newaddr(index, family, label,
603 prefixlen, ip_string);
606 static void process_deladdr(unsigned char family, unsigned char prefixlen,
607 int index, struct ifaddrmsg *msg, int bytes)
609 const char *label = NULL;
611 char ip_string[INET6_ADDRSTRLEN];
613 if (family != AF_INET && family != AF_INET6)
616 if (family == AF_INET) {
617 struct in_addr ipv4_addr = { INADDR_ANY };
619 extract_ipv4_addr(msg, bytes, &label, &ipv4_addr, NULL, NULL);
621 } else if (family == AF_INET6) {
622 struct in6_addr ipv6_address, ipv6_local;
624 extract_ipv6_addr(msg, bytes, &ipv6_address, &ipv6_local);
625 if (IN6_IS_ADDR_LINKLOCAL(&ipv6_address))
631 if (inet_ntop(family, src, ip_string, INET6_ADDRSTRLEN) == NULL)
634 __connman_ipconfig_deladdr(index, family, label,
635 prefixlen, ip_string);
638 static void extract_route(struct rtmsg *msg, int bytes, int *index,
640 struct in_addr *gateway)
644 for (attr = RTM_RTA(msg); RTA_OK(attr, bytes);
645 attr = RTA_NEXT(attr, bytes)) {
646 switch (attr->rta_type) {
649 *dst = *((struct in_addr *) RTA_DATA(attr));
653 *gateway = *((struct in_addr *) RTA_DATA(attr));
657 *index = *((int *) RTA_DATA(attr));
663 static void process_newroute(unsigned char family, unsigned char scope,
664 struct rtmsg *msg, int bytes)
667 struct in_addr dst = { INADDR_ANY }, gateway = { INADDR_ANY };
668 char dststr[16], gatewaystr[16];
671 if (family != AF_INET)
674 extract_route(msg, bytes, &index, &dst, &gateway);
676 inet_ntop(family, &dst, dststr, sizeof(dststr));
677 inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
679 __connman_ipconfig_newroute(index, family, scope, dststr, gatewaystr);
681 /* skip host specific routes */
682 if (scope != RT_SCOPE_UNIVERSE &&
683 !(scope == RT_SCOPE_LINK && dst.s_addr == INADDR_ANY))
686 if (dst.s_addr != INADDR_ANY)
689 for (list = rtnl_list; list; list = list->next) {
690 struct connman_rtnl *rtnl = list->data;
692 if (rtnl->newgateway)
693 rtnl->newgateway(index, gatewaystr);
697 static void process_delroute(unsigned char family, unsigned char scope,
698 struct rtmsg *msg, int bytes)
701 struct in_addr dst = { INADDR_ANY }, gateway = { INADDR_ANY };
702 char dststr[16], gatewaystr[16];
705 if (family != AF_INET)
708 extract_route(msg, bytes, &index, &dst, &gateway);
710 inet_ntop(family, &dst, dststr, sizeof(dststr));
711 inet_ntop(family, &gateway, gatewaystr, sizeof(gatewaystr));
713 __connman_ipconfig_delroute(index, family, scope, dststr, gatewaystr);
715 /* skip host specific routes */
716 if (scope != RT_SCOPE_UNIVERSE &&
717 !(scope == RT_SCOPE_LINK && dst.s_addr == INADDR_ANY))
720 if (dst.s_addr != INADDR_ANY)
723 for (list = rtnl_list; list; list = list->next) {
724 struct connman_rtnl *rtnl = list->data;
726 if (rtnl->delgateway)
727 rtnl->delgateway(index, gatewaystr);
731 static inline void print_ether(struct rtattr *attr, const char *name)
733 int len = (int) RTA_PAYLOAD(attr);
735 if (len == ETH_ALEN) {
736 struct ether_addr eth;
737 memcpy(ð, RTA_DATA(attr), ETH_ALEN);
738 print(" attr %s (len %d) %s\n", name, len, ether_ntoa(ð));
740 print(" attr %s (len %d)\n", name, len);
743 static inline void print_inet(struct rtattr *attr, const char *name,
744 unsigned char family)
746 int len = (int) RTA_PAYLOAD(attr);
748 if (family == AF_INET && len == sizeof(struct in_addr)) {
750 addr = *((struct in_addr *) RTA_DATA(attr));
751 print(" attr %s (len %d) %s\n", name, len, inet_ntoa(addr));
753 print(" attr %s (len %d)\n", name, len);
756 static inline void print_string(struct rtattr *attr, const char *name)
758 print(" attr %s (len %d) %s\n", name, (int) RTA_PAYLOAD(attr),
759 (char *) RTA_DATA(attr));
762 static inline void print_byte(struct rtattr *attr, const char *name)
764 print(" attr %s (len %d) 0x%02x\n", name, (int) RTA_PAYLOAD(attr),
765 *((unsigned char *) RTA_DATA(attr)));
768 static inline void print_integer(struct rtattr *attr, const char *name)
770 print(" attr %s (len %d) %d\n", name, (int) RTA_PAYLOAD(attr),
771 *((int *) RTA_DATA(attr)));
774 static inline void print_attr(struct rtattr *attr, const char *name)
776 int len = (int) RTA_PAYLOAD(attr);
779 print(" attr %s (len %d)\n", name, len);
781 print(" attr %d (len %d)\n", attr->rta_type, len);
784 static void rtnl_link(struct nlmsghdr *hdr)
786 struct ifinfomsg *msg;
790 msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
791 bytes = IFLA_PAYLOAD(hdr);
793 print("ifi_index %d ifi_flags 0x%04x", msg->ifi_index, msg->ifi_flags);
795 for (attr = IFLA_RTA(msg); RTA_OK(attr, bytes);
796 attr = RTA_NEXT(attr, bytes)) {
797 switch (attr->rta_type) {
799 print_ether(attr, "address");
802 print_ether(attr, "broadcast");
805 print_string(attr, "ifname");
808 print_integer(attr, "mtu");
811 print_attr(attr, "link");
814 print_attr(attr, "qdisc");
817 print_attr(attr, "stats");
820 print_attr(attr, "cost");
823 print_attr(attr, "priority");
826 print_attr(attr, "master");
829 print_attr(attr, "wireless");
832 print_attr(attr, "protinfo");
835 print_integer(attr, "txqlen");
838 print_attr(attr, "map");
841 print_attr(attr, "weight");
844 print_byte(attr, "operstate");
847 print_byte(attr, "linkmode");
850 print_attr(attr, NULL);
856 static void rtnl_newlink(struct nlmsghdr *hdr)
858 struct ifinfomsg *msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
862 process_newlink(msg->ifi_type, msg->ifi_index, msg->ifi_flags,
863 msg->ifi_change, msg, IFA_PAYLOAD(hdr));
866 static void rtnl_dellink(struct nlmsghdr *hdr)
868 struct ifinfomsg *msg = (struct ifinfomsg *) NLMSG_DATA(hdr);
872 process_dellink(msg->ifi_type, msg->ifi_index, msg->ifi_flags,
873 msg->ifi_change, msg, IFA_PAYLOAD(hdr));
876 static void rtnl_addr(struct nlmsghdr *hdr)
878 struct ifaddrmsg *msg;
882 msg = (struct ifaddrmsg *) NLMSG_DATA(hdr);
883 bytes = IFA_PAYLOAD(hdr);
885 print("ifa_family %d ifa_index %d", msg->ifa_family, msg->ifa_index);
887 for (attr = IFA_RTA(msg); RTA_OK(attr, bytes);
888 attr = RTA_NEXT(attr, bytes)) {
889 switch (attr->rta_type) {
891 print_inet(attr, "address", msg->ifa_family);
894 print_inet(attr, "local", msg->ifa_family);
897 print_string(attr, "label");
900 print_inet(attr, "broadcast", msg->ifa_family);
903 print_attr(attr, "anycast");
906 print_attr(attr, "cacheinfo");
909 print_attr(attr, "multicast");
912 print_attr(attr, NULL);
918 static void rtnl_newaddr(struct nlmsghdr *hdr)
920 struct ifaddrmsg *msg = (struct ifaddrmsg *) NLMSG_DATA(hdr);
924 process_newaddr(msg->ifa_family, msg->ifa_prefixlen, msg->ifa_index,
925 msg, IFA_PAYLOAD(hdr));
928 static void rtnl_deladdr(struct nlmsghdr *hdr)
930 struct ifaddrmsg *msg = (struct ifaddrmsg *) NLMSG_DATA(hdr);
934 process_deladdr(msg->ifa_family, msg->ifa_prefixlen, msg->ifa_index,
935 msg, IFA_PAYLOAD(hdr));
938 static void rtnl_route(struct nlmsghdr *hdr)
944 msg = (struct rtmsg *) NLMSG_DATA(hdr);
945 bytes = RTM_PAYLOAD(hdr);
947 print("rtm_family %d rtm_table %d rtm_protocol %d",
948 msg->rtm_family, msg->rtm_table, msg->rtm_protocol);
949 print("rtm_scope %d rtm_type %d rtm_flags 0x%04x",
950 msg->rtm_scope, msg->rtm_type, msg->rtm_flags);
952 for (attr = RTM_RTA(msg); RTA_OK(attr, bytes);
953 attr = RTA_NEXT(attr, bytes)) {
954 switch (attr->rta_type) {
956 print_inet(attr, "dst", msg->rtm_family);
959 print_inet(attr, "src", msg->rtm_family);
962 print_string(attr, "iif");
965 print_integer(attr, "oif");
968 print_inet(attr, "gateway", msg->rtm_family);
971 print_attr(attr, "priority");
974 print_inet(attr, "prefsrc", msg->rtm_family);
977 print_attr(attr, "metrics");
980 print_integer(attr, "table");
983 print_attr(attr, NULL);
989 static connman_bool_t is_route_rtmsg(struct rtmsg *msg)
992 if (msg->rtm_table != RT_TABLE_MAIN)
995 if (msg->rtm_protocol != RTPROT_BOOT &&
996 msg->rtm_protocol != RTPROT_KERNEL)
999 if (msg->rtm_type != RTN_UNICAST)
1005 static void rtnl_newroute(struct nlmsghdr *hdr)
1007 struct rtmsg *msg = (struct rtmsg *) NLMSG_DATA(hdr);
1011 if (is_route_rtmsg(msg))
1012 process_newroute(msg->rtm_family, msg->rtm_scope,
1013 msg, RTM_PAYLOAD(hdr));
1016 static void rtnl_delroute(struct nlmsghdr *hdr)
1018 struct rtmsg *msg = (struct rtmsg *) NLMSG_DATA(hdr);
1022 if (is_route_rtmsg(msg))
1023 process_delroute(msg->rtm_family, msg->rtm_scope,
1024 msg, RTM_PAYLOAD(hdr));
1027 static void *rtnl_nd_opt_rdnss(struct nd_opt_hdr *opt, guint32 *lifetime,
1030 guint32 *optint = (void *)opt;
1032 if (opt->nd_opt_len < 3)
1035 if (*lifetime > ntohl(optint[1]))
1036 *lifetime = ntohl(optint[1]);
1038 /* nd_opt_len is in units of 8 bytes. The header is 1 unit (8 bytes)
1039 and each address is another 2 units (16 bytes).
1040 So the number of addresses (given rounding) is nd_opt_len/2 */
1041 *nr_servers = opt->nd_opt_len / 2;
1043 /* And they start 8 bytes into the packet, or two guint32s in. */
1047 static const char **rtnl_nd_opt_dnssl(struct nd_opt_hdr *opt, guint32 *lifetime)
1049 const char **domains = NULL;
1050 guint32 *optint = (void *)opt;
1051 unsigned char *optc = (void *)&optint[2];
1052 int data_len = (opt->nd_opt_len * 8) - 8;
1056 if (*lifetime > ntohl(optint[1]))
1057 *lifetime = ntohl(optint[1]);
1059 /* Turn it into normal strings by converting the length bytes into '.',
1060 and count how many search domains there are while we're at it. */
1062 while (i < data_len) {
1063 if (optc[i] > 0x3f) {
1064 DBG("DNSSL contains compressed elements in violation of RFC6106");
1071 /* Check for double zero */
1072 if (i < data_len && optc[i] == 0)
1080 if (i >= data_len) {
1081 DBG("DNSSL data overflows option length");
1088 domains = g_try_new0(const char *, nr_domains + 1);
1092 /* Now point to the normal strings, missing out the leading '.' that
1093 each of them will have now. */
1094 for (i = 0; i < nr_domains; i++) {
1095 domains[i] = (char *)optc + 1;
1096 optc += strlen((char *)optc) + 1;
1102 static void rtnl_newnduseropt(struct nlmsghdr *hdr)
1104 struct nduseroptmsg *msg = (struct nduseroptmsg *) NLMSG_DATA(hdr);
1105 struct nd_opt_hdr *opt = (void *)&msg[1];
1106 guint32 lifetime = -1;
1107 const char **domains = NULL;
1108 struct in6_addr *servers;
1110 int msglen = msg->nduseropt_opts_len;
1113 DBG("family %02x index %x len %04x type %02x code %02x",
1114 msg->nduseropt_family, msg->nduseropt_ifindex,
1115 msg->nduseropt_opts_len, msg->nduseropt_icmp_type,
1116 msg->nduseropt_icmp_code);
1118 if (msg->nduseropt_family != AF_INET6 ||
1119 msg->nduseropt_icmp_type != ND_ROUTER_ADVERT ||
1120 msg->nduseropt_icmp_code != 0)
1123 interface = connman_inet_ifname(msg->nduseropt_ifindex);
1127 for (opt = (void *)&msg[1];
1128 msglen >= 2 && msglen >= opt->nd_opt_len && opt->nd_opt_len;
1129 msglen -= opt->nd_opt_len,
1130 opt = ((void *)opt) + opt->nd_opt_len*8) {
1132 DBG("nd opt type %d len %d\n",
1133 opt->nd_opt_type, opt->nd_opt_len);
1135 if (opt->nd_opt_type == 25)
1136 servers = rtnl_nd_opt_rdnss(opt, &lifetime,
1138 else if (opt->nd_opt_type == 31)
1139 domains = rtnl_nd_opt_dnssl(opt, &lifetime);
1146 for (i = 0; i < nr_servers; i++) {
1147 if (!inet_ntop(AF_INET6, servers + i, buf, sizeof(buf)))
1150 if (domains == NULL || domains[0] == NULL) {
1151 connman_resolver_append_lifetime(interface,
1152 NULL, buf, lifetime);
1156 for (j = 0; domains[j]; j++)
1157 connman_resolver_append_lifetime(interface,
1166 static const char *type2string(uint16_t type)
1193 case RTM_NEWNDUSEROPT:
1194 return "NEWNDUSEROPT";
1200 static GIOChannel *channel = NULL;
1202 struct rtnl_request {
1203 struct nlmsghdr hdr;
1204 struct rtgenmsg msg;
1206 #define RTNL_REQUEST_SIZE (sizeof(struct nlmsghdr) + sizeof(struct rtgenmsg))
1208 static GSList *request_list = NULL;
1209 static guint32 request_seq = 0;
1211 static struct rtnl_request *find_request(guint32 seq)
1215 for (list = request_list; list; list = list->next) {
1216 struct rtnl_request *req = list->data;
1218 if (req->hdr.nlmsg_seq == seq)
1225 static int send_request(struct rtnl_request *req)
1227 struct sockaddr_nl addr;
1230 DBG("%s len %d type %d flags 0x%04x seq %d",
1231 type2string(req->hdr.nlmsg_type),
1232 req->hdr.nlmsg_len, req->hdr.nlmsg_type,
1233 req->hdr.nlmsg_flags, req->hdr.nlmsg_seq);
1235 sk = g_io_channel_unix_get_fd(channel);
1237 memset(&addr, 0, sizeof(addr));
1238 addr.nl_family = AF_NETLINK;
1240 return sendto(sk, req, req->hdr.nlmsg_len, 0,
1241 (struct sockaddr *) &addr, sizeof(addr));
1244 static int queue_request(struct rtnl_request *req)
1246 request_list = g_slist_append(request_list, req);
1248 if (g_slist_length(request_list) > 1)
1251 return send_request(req);
1254 static int process_response(guint32 seq)
1256 struct rtnl_request *req;
1260 req = find_request(seq);
1262 request_list = g_slist_remove(request_list, req);
1266 req = g_slist_nth_data(request_list, 0);
1270 return send_request(req);
1273 static void rtnl_message(void *buf, size_t len)
1275 DBG("buf %p len %zd", buf, len);
1278 struct nlmsghdr *hdr = buf;
1279 struct nlmsgerr *err;
1281 if (!NLMSG_OK(hdr, len))
1284 DBG("%s len %d type %d flags 0x%04x seq %d",
1285 type2string(hdr->nlmsg_type),
1286 hdr->nlmsg_len, hdr->nlmsg_type,
1287 hdr->nlmsg_flags, hdr->nlmsg_seq);
1289 switch (hdr->nlmsg_type) {
1294 process_response(hdr->nlmsg_seq);
1297 err = NLMSG_DATA(hdr);
1298 DBG("error %d (%s)", -err->error,
1299 strerror(-err->error));
1319 case RTM_NEWNDUSEROPT:
1320 rtnl_newnduseropt(hdr);
1324 len -= hdr->nlmsg_len;
1325 buf += hdr->nlmsg_len;
1329 static gboolean netlink_event(GIOChannel *chan,
1330 GIOCondition cond, gpointer data)
1332 unsigned char buf[4096];
1336 if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR))
1339 memset(buf, 0, sizeof(buf));
1341 err = g_io_channel_read(chan, (gchar *) buf, sizeof(buf), &len);
1343 if (err == G_IO_ERROR_AGAIN)
1348 rtnl_message(buf, len);
1353 static int send_getlink(void)
1355 struct rtnl_request *req;
1359 req = g_try_malloc0(RTNL_REQUEST_SIZE);
1363 req->hdr.nlmsg_len = RTNL_REQUEST_SIZE;
1364 req->hdr.nlmsg_type = RTM_GETLINK;
1365 req->hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
1366 req->hdr.nlmsg_pid = 0;
1367 req->hdr.nlmsg_seq = request_seq++;
1368 req->msg.rtgen_family = AF_INET;
1370 return queue_request(req);
1373 static int send_getaddr(void)
1375 struct rtnl_request *req;
1379 req = g_try_malloc0(RTNL_REQUEST_SIZE);
1383 req->hdr.nlmsg_len = RTNL_REQUEST_SIZE;
1384 req->hdr.nlmsg_type = RTM_GETADDR;
1385 req->hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
1386 req->hdr.nlmsg_pid = 0;
1387 req->hdr.nlmsg_seq = request_seq++;
1388 req->msg.rtgen_family = AF_INET;
1390 return queue_request(req);
1393 static int send_getroute(void)
1395 struct rtnl_request *req;
1399 req = g_try_malloc0(RTNL_REQUEST_SIZE);
1403 req->hdr.nlmsg_len = RTNL_REQUEST_SIZE;
1404 req->hdr.nlmsg_type = RTM_GETROUTE;
1405 req->hdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
1406 req->hdr.nlmsg_pid = 0;
1407 req->hdr.nlmsg_seq = request_seq++;
1408 req->msg.rtgen_family = AF_INET;
1410 return queue_request(req);
1413 static gboolean update_timeout_cb(gpointer user_data)
1415 __connman_rtnl_request_update();
1420 static void update_interval_callback(guint min)
1422 if (update_timeout > 0)
1423 g_source_remove(update_timeout);
1425 if (min < G_MAXUINT) {
1426 update_interval = min;
1427 update_timeout = g_timeout_add_seconds(update_interval,
1428 update_timeout_cb, NULL);
1431 update_interval = G_MAXUINT;
1435 static gint compare_interval(gconstpointer a, gconstpointer b)
1437 guint val_a = GPOINTER_TO_UINT(a);
1438 guint val_b = GPOINTER_TO_UINT(b);
1440 return val_a - val_b;
1443 unsigned int __connman_rtnl_update_interval_add(unsigned int interval)
1450 update_list = g_slist_insert_sorted(update_list,
1451 GUINT_TO_POINTER(interval), compare_interval);
1453 min = GPOINTER_TO_UINT(g_slist_nth_data(update_list, 0));
1454 if (min < update_interval) {
1455 update_interval_callback(min);
1456 __connman_rtnl_request_update();
1459 return update_interval;
1462 unsigned int __connman_rtnl_update_interval_remove(unsigned int interval)
1464 guint min = G_MAXUINT;
1469 update_list = g_slist_remove(update_list, GINT_TO_POINTER(interval));
1471 if (update_list != NULL)
1472 min = GPOINTER_TO_UINT(g_slist_nth_data(update_list, 0));
1474 if (min > update_interval)
1475 update_interval_callback(min);
1480 int __connman_rtnl_request_update(void)
1482 return send_getlink();
1485 int __connman_rtnl_init(void)
1487 struct sockaddr_nl addr;
1492 interface_list = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1493 NULL, free_interface);
1495 sk = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE);
1499 memset(&addr, 0, sizeof(addr));
1500 addr.nl_family = AF_NETLINK;
1501 addr.nl_groups = RTMGRP_LINK | RTMGRP_IPV4_IFADDR | RTMGRP_IPV4_ROUTE |
1502 RTMGRP_IPV6_IFADDR | RTMGRP_IPV6_ROUTE |
1503 (1<<(RTNLGRP_ND_USEROPT-1));
1505 if (bind(sk, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
1510 channel = g_io_channel_unix_new(sk);
1511 g_io_channel_set_close_on_unref(channel, TRUE);
1513 g_io_add_watch(channel, G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR,
1514 netlink_event, NULL);
1519 void __connman_rtnl_start(void)
1528 void __connman_rtnl_cleanup(void)
1534 for (list = watch_list; list; list = list->next) {
1535 struct watch_data *watch = list->data;
1537 DBG("removing watch %d", watch->id);
1543 g_slist_free(watch_list);
1546 g_slist_free(update_list);
1549 for (list = request_list; list; list = list->next) {
1550 struct rtnl_request *req = list->data;
1552 DBG("%s len %d type %d flags 0x%04x seq %d",
1553 type2string(req->hdr.nlmsg_type),
1554 req->hdr.nlmsg_len, req->hdr.nlmsg_type,
1555 req->hdr.nlmsg_flags, req->hdr.nlmsg_seq);
1561 g_slist_free(request_list);
1562 request_list = NULL;
1564 g_io_channel_shutdown(channel, TRUE, NULL);
1565 g_io_channel_unref(channel);
1569 g_hash_table_destroy(interface_list);