2 * netifd - network interface daemon
3 * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
4 * Copyright (C) 2013 Jo-Philipp Wich <jow@openwrt.org>
5 * Copyright (C) 2013 Steven Barth <steven@midlink.org>
6 * Copyright (C) 2014 Gioacchino Mazzurco <gio@eigenlab.org>
7 * Copyright (C) 2017 Matthias Schiffer <mschiffer@universe-factory.net>
8 * Copyright (C) 2018 Hans Dedecker <dedeckeh@gmail.com>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2
12 * as published by the Free Software Foundation
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
21 #include <sys/socket.h>
22 #include <sys/ioctl.h>
24 #include <sys/syscall.h>
27 #include <net/if_arp.h>
30 #include <arpa/inet.h>
31 #include <netinet/in.h>
32 #include <netinet/ether.h>
34 #include <linux/rtnetlink.h>
35 #include <linux/neighbour.h>
36 #include <linux/sockios.h>
38 #include <linux/if_addr.h>
39 #include <linux/if_link.h>
40 #include <linux/if_vlan.h>
41 #include <linux/if_bridge.h>
42 #include <linux/if_tunnel.h>
43 #include <linux/ip6_tunnel.h>
44 #include <linux/ethtool.h>
45 #include <linux/fib_rules.h>
46 #include <linux/veth.h>
47 #include <linux/version.h>
51 #ifndef RTN_FAILED_POLICY
52 #define RTN_FAILED_POLICY 12
55 #ifndef IFA_F_NOPREFIXROUTE
56 #define IFA_F_NOPREFIXROUTE 0x200
60 #define IFA_FLAGS (IFA_MULTICAST + 1)
69 #include <netlink/msg.h>
70 #include <netlink/attr.h>
71 #include <netlink/socket.h>
72 #include <libubox/uloop.h>
80 struct uloop_fd uloop
;
85 static int sock_ioctl
= -1;
86 static struct nl_sock
*sock_rtnl
= NULL
;
88 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
);
89 static void handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
);
90 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
,
91 const unsigned int link
, struct blob_attr
**tb
);
92 static int __system_del_ip_tunnel(const char *name
, struct blob_attr
**tb
);
94 static char dev_buf
[256];
97 handler_nl_event(struct uloop_fd
*u
, unsigned int events
)
99 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
101 socklen_t errlen
= sizeof(err
);
104 nl_recvmsgs_default(ev
->sock
);
108 if (getsockopt(u
->fd
, SOL_SOCKET
, SO_ERROR
, (void *)&err
, &errlen
))
113 /* Increase rx buffer size on netlink socket */
115 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
118 /* Request full dump since some info got dropped */
119 struct rtgenmsg msg
= { .rtgen_family
= AF_UNSPEC
};
120 nl_send_simple(ev
->sock
, RTM_GETLINK
, NLM_F_DUMP
, &msg
, sizeof(msg
));
130 uloop_fd_delete(&ev
->uloop
);
134 static struct nl_sock
*
135 create_socket(int protocol
, int groups
)
137 struct nl_sock
*sock
;
139 sock
= nl_socket_alloc();
144 nl_join_groups(sock
, groups
);
146 if (nl_connect(sock
, protocol
)) {
147 nl_socket_free(sock
);
155 create_raw_event_socket(struct event_socket
*ev
, int protocol
, int groups
,
156 uloop_fd_handler cb
, int flags
)
158 ev
->sock
= create_socket(protocol
, groups
);
162 ev
->uloop
.fd
= nl_socket_get_fd(ev
->sock
);
164 if (uloop_fd_add(&ev
->uloop
, ULOOP_READ
|flags
))
171 create_event_socket(struct event_socket
*ev
, int protocol
,
172 int (*cb
)(struct nl_msg
*msg
, void *arg
))
174 if (!create_raw_event_socket(ev
, protocol
, 0, handler_nl_event
, ULOOP_ERROR_CB
))
177 /* Install the valid custom callback handler */
178 nl_socket_modify_cb(ev
->sock
, NL_CB_VALID
, NL_CB_CUSTOM
, cb
, NULL
);
180 /* Disable sequence number checking on event sockets */
181 nl_socket_disable_seq_check(ev
->sock
);
183 /* Increase rx buffer size to 65K on event sockets */
185 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
192 create_hotplug_event_socket(struct event_socket
*ev
, int protocol
,
193 void (*cb
)(struct uloop_fd
*u
, unsigned int events
))
195 if (!create_raw_event_socket(ev
, protocol
, 1, cb
, ULOOP_ERROR_CB
))
198 /* Increase rx buffer size to 65K on event sockets */
200 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
207 system_rtn_aton(const char *src
, unsigned int *dst
)
212 if (!strcmp(src
, "local"))
214 else if (!strcmp(src
, "nat"))
216 else if (!strcmp(src
, "broadcast"))
218 else if (!strcmp(src
, "anycast"))
220 else if (!strcmp(src
, "multicast"))
222 else if (!strcmp(src
, "prohibit"))
224 else if (!strcmp(src
, "unreachable"))
226 else if (!strcmp(src
, "blackhole"))
228 else if (!strcmp(src
, "xresolve"))
230 else if (!strcmp(src
, "unicast"))
232 else if (!strcmp(src
, "throw"))
234 else if (!strcmp(src
, "failed_policy"))
235 n
= RTN_FAILED_POLICY
;
237 n
= strtoul(src
, &e
, 0);
238 if (!e
|| *e
|| e
== src
|| n
> 255)
247 system_tos_aton(const char *src
, unsigned *dst
)
251 *dst
= strtoul(src
, &e
, 16);
252 if (e
== src
|| *e
|| *dst
> 255)
258 int system_init(void)
260 static struct event_socket rtnl_event
;
261 static struct event_socket hotplug_event
;
263 sock_ioctl
= socket(AF_LOCAL
, SOCK_DGRAM
, 0);
264 system_fd_set_cloexec(sock_ioctl
);
266 /* Prepare socket for routing / address control */
267 sock_rtnl
= create_socket(NETLINK_ROUTE
, 0);
271 if (!create_event_socket(&rtnl_event
, NETLINK_ROUTE
, cb_rtnl_event
))
274 if (!create_hotplug_event_socket(&hotplug_event
, NETLINK_KOBJECT_UEVENT
,
275 handle_hotplug_event
))
278 /* Receive network link events form kernel */
279 nl_socket_add_membership(rtnl_event
.sock
, RTNLGRP_LINK
);
284 static void system_set_sysctl(const char *path
, const char *val
)
288 fd
= open(path
, O_WRONLY
);
292 if (write(fd
, val
, strlen(val
))) {}
296 static void system_set_dev_sysctl(const char *path
, const char *device
, const char *val
)
298 snprintf(dev_buf
, sizeof(dev_buf
), path
, device
);
299 system_set_sysctl(dev_buf
, val
);
302 static void system_set_disable_ipv6(struct device
*dev
, const char *val
)
304 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6", dev
->ifname
, val
);
307 static void system_set_ip6segmentrouting(struct device
*dev
, const char *val
)
309 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/seg6_enabled", dev
->ifname
, val
);
312 static void system_set_rpfilter(struct device
*dev
, const char *val
)
314 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/rp_filter", dev
->ifname
, val
);
317 static void system_set_acceptlocal(struct device
*dev
, const char *val
)
319 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/accept_local", dev
->ifname
, val
);
322 static void system_set_igmpversion(struct device
*dev
, const char *val
)
324 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/force_igmp_version", dev
->ifname
, val
);
327 static void system_set_mldversion(struct device
*dev
, const char *val
)
329 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/force_mld_version", dev
->ifname
, val
);
332 static void system_set_neigh4reachabletime(struct device
*dev
, const char *val
)
334 system_set_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/base_reachable_time_ms", dev
->ifname
, val
);
337 static void system_set_neigh6reachabletime(struct device
*dev
, const char *val
)
339 system_set_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/base_reachable_time_ms", dev
->ifname
, val
);
342 static void system_set_neigh4gcstaletime(struct device
*dev
, const char *val
)
344 system_set_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/gc_stale_time", dev
->ifname
, val
);
347 static void system_set_neigh6gcstaletime(struct device
*dev
, const char *val
)
349 system_set_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/gc_stale_time", dev
->ifname
, val
);
352 static void system_set_neigh4locktime(struct device
*dev
, const char *val
)
354 system_set_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/locktime", dev
->ifname
, val
);
357 static void system_set_dadtransmits(struct device
*dev
, const char *val
)
359 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/dad_transmits", dev
->ifname
, val
);
362 static void system_set_sendredirects(struct device
*dev
, const char *val
)
364 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/send_redirects", dev
->ifname
, val
);
367 static void system_set_drop_v4_unicast_in_l2_multicast(struct device
*dev
, const char *val
)
369 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/drop_unicast_in_l2_multicast", dev
->ifname
, val
);
372 static void system_set_drop_v6_unicast_in_l2_multicast(struct device
*dev
, const char *val
)
374 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/drop_unicast_in_l2_multicast", dev
->ifname
, val
);
377 static void system_set_drop_gratuitous_arp(struct device
*dev
, const char *val
)
379 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/drop_gratuitous_arp", dev
->ifname
, val
);
382 static void system_set_drop_unsolicited_na(struct device
*dev
, const char *val
)
384 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/drop_unsolicited_na", dev
->ifname
, val
);
387 static void system_set_arp_accept(struct device
*dev
, const char *val
)
389 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/arp_accept", dev
->ifname
, val
);
392 static void system_bridge_set_multicast_to_unicast(struct device
*dev
, const char *val
)
394 system_set_dev_sysctl("/sys/class/net/%s/brport/multicast_to_unicast", dev
->ifname
, val
);
397 static void system_bridge_set_multicast_fast_leave(struct device
*dev
, const char *val
)
399 system_set_dev_sysctl("/sys/class/net/%s/brport/multicast_fast_leave", dev
->ifname
, val
);
402 static void system_bridge_set_hairpin_mode(struct device
*dev
, const char *val
)
404 system_set_dev_sysctl("/sys/class/net/%s/brport/hairpin_mode", dev
->ifname
, val
);
407 static void system_bridge_set_isolated(struct device
*dev
, const char *val
)
409 system_set_dev_sysctl("/sys/class/net/%s/brport/isolated", dev
->ifname
, val
);
412 static void system_bridge_set_multicast_router(struct device
*dev
, const char *val
, bool bridge
)
414 system_set_dev_sysctl(bridge
? "/sys/class/net/%s/bridge/multicast_router" :
415 "/sys/class/net/%s/brport/multicast_router",
419 static void system_bridge_set_robustness(struct device
*dev
, const char *val
)
421 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_startup_query_count",
423 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_last_member_count",
427 static void system_bridge_set_query_interval(struct device
*dev
, const char *val
)
429 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_query_interval",
433 static void system_bridge_set_query_response_interval(struct device
*dev
, const char *val
)
435 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_query_response_interval",
439 static void system_bridge_set_last_member_interval(struct device
*dev
, const char *val
)
441 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_last_member_interval",
445 static void system_bridge_set_membership_interval(struct device
*dev
, const char *val
)
447 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_membership_interval",
451 static void system_bridge_set_other_querier_timeout(struct device
*dev
, const char *val
)
453 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier_interval",
457 static void system_bridge_set_startup_query_interval(struct device
*dev
, const char *val
)
459 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_startup_query_interval",
463 static void system_bridge_set_stp_state(struct device
*dev
, const char *val
)
465 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/stp_state", dev
->ifname
, val
);
468 static void system_bridge_set_forward_delay(struct device
*dev
, const char *val
)
470 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/forward_delay", dev
->ifname
, val
);
473 static void system_bridge_set_priority(struct device
*dev
, const char *val
)
475 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/priority", dev
->ifname
, val
);
478 static void system_bridge_set_ageing_time(struct device
*dev
, const char *val
)
480 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/ageing_time", dev
->ifname
, val
);
483 static void system_bridge_set_hello_time(struct device
*dev
, const char *val
)
485 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/hello_time", dev
->ifname
, val
);
488 static void system_bridge_set_max_age(struct device
*dev
, const char *val
)
490 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/max_age", dev
->ifname
, val
);
493 static void system_bridge_set_learning(struct device
*dev
, const char *val
)
495 system_set_dev_sysctl("/sys/class/net/%s/brport/learning", dev
->ifname
, val
);
498 static void system_bridge_set_unicast_flood(struct device
*dev
, const char *val
)
500 system_set_dev_sysctl("/sys/class/net/%s/brport/unicast_flood", dev
->ifname
, val
);
503 static void system_bridge_set_vlan_filtering(struct device
*dev
, const char *val
)
505 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/vlan_filtering", dev
->ifname
, val
);
508 static int system_get_sysctl(const char *path
, char *buf
, const size_t buf_sz
)
510 int fd
= -1, ret
= -1;
512 fd
= open(path
, O_RDONLY
);
516 ssize_t len
= read(fd
, buf
, buf_sz
- 1);
530 system_get_dev_sysctl(const char *path
, const char *device
, char *buf
, const size_t buf_sz
)
532 snprintf(dev_buf
, sizeof(dev_buf
), path
, device
);
533 return system_get_sysctl(dev_buf
, buf
, buf_sz
);
536 static int system_get_disable_ipv6(struct device
*dev
, char *buf
, const size_t buf_sz
)
538 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6",
539 dev
->ifname
, buf
, buf_sz
);
542 static int system_get_ip6segmentrouting(struct device
*dev
, char *buf
, const size_t buf_sz
)
544 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/seg6_enabled",
545 dev
->ifname
, buf
, buf_sz
);
548 static int system_get_rpfilter(struct device
*dev
, char *buf
, const size_t buf_sz
)
550 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/rp_filter",
551 dev
->ifname
, buf
, buf_sz
);
554 static int system_get_acceptlocal(struct device
*dev
, char *buf
, const size_t buf_sz
)
556 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/accept_local",
557 dev
->ifname
, buf
, buf_sz
);
560 static int system_get_igmpversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
562 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/force_igmp_version",
563 dev
->ifname
, buf
, buf_sz
);
566 static int system_get_mldversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
568 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/force_mld_version",
569 dev
->ifname
, buf
, buf_sz
);
572 static int system_get_neigh4reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
574 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/base_reachable_time_ms",
575 dev
->ifname
, buf
, buf_sz
);
578 static int system_get_neigh6reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
580 return system_get_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/base_reachable_time_ms",
581 dev
->ifname
, buf
, buf_sz
);
584 static int system_get_neigh4gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
586 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/gc_stale_time",
587 dev
->ifname
, buf
, buf_sz
);
590 static int system_get_neigh6gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
592 return system_get_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/gc_stale_time",
593 dev
->ifname
, buf
, buf_sz
);
596 static int system_get_neigh4locktime(struct device
*dev
, char *buf
, const size_t buf_sz
)
598 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/locktime",
599 dev
->ifname
, buf
, buf_sz
);
602 static int system_get_dadtransmits(struct device
*dev
, char *buf
, const size_t buf_sz
)
604 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/dad_transmits",
605 dev
->ifname
, buf
, buf_sz
);
608 static int system_get_sendredirects(struct device
*dev
, char *buf
, const size_t buf_sz
)
610 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/send_redirects",
611 dev
->ifname
, buf
, buf_sz
);
615 static int system_get_drop_v4_unicast_in_l2_multicast(struct device
*dev
, char *buf
, const size_t buf_sz
)
617 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/drop_unicast_in_l2_multicast",
618 dev
->ifname
, buf
, buf_sz
);
621 static int system_get_drop_v6_unicast_in_l2_multicast(struct device
*dev
, char *buf
, const size_t buf_sz
)
623 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/drop_unicast_in_l2_multicast",
624 dev
->ifname
, buf
, buf_sz
);
627 static int system_get_drop_gratuitous_arp(struct device
*dev
, char *buf
, const size_t buf_sz
)
629 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/drop_gratuitous_arp",
630 dev
->ifname
, buf
, buf_sz
);
633 static int system_get_drop_unsolicited_na(struct device
*dev
, char *buf
, const size_t buf_sz
)
635 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/drop_unsolicited_na",
636 dev
->ifname
, buf
, buf_sz
);
639 static int system_get_arp_accept(struct device
*dev
, char *buf
, const size_t buf_sz
)
641 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/arp_accept",
642 dev
->ifname
, buf
, buf_sz
);
645 /* Evaluate netlink messages */
646 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
)
648 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
649 struct nlattr
*nla
[__IFLA_MAX
];
653 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
656 nlmsg_parse(nh
, sizeof(struct ifinfomsg
), nla
, __IFLA_MAX
- 1, NULL
);
657 if (!nla
[IFLA_IFNAME
])
660 struct device
*dev
= device_find(nla_data(nla
[IFLA_IFNAME
]));
664 if (!system_get_dev_sysctl("/sys/class/net/%s/carrier", dev
->ifname
, buf
, sizeof(buf
)))
665 link_state
= strtoul(buf
, NULL
, 0);
667 if (dev
->type
== &simple_device_type
)
668 device_set_present(dev
, true);
670 device_set_link(dev
, link_state
? true : false);
677 handle_hotplug_msg(char *data
, int size
)
679 const char *subsystem
= NULL
, *interface
= NULL
, *interface_old
= NULL
;
680 char *cur
, *end
, *sep
;
683 bool add
, move
= false;
685 if (!strncmp(data
, "add@", 4))
687 else if (!strncmp(data
, "remove@", 7))
689 else if (!strncmp(data
, "move@", 5)) {
696 skip
= strlen(data
) + 1;
699 for (cur
= data
+ skip
; cur
< end
; cur
+= skip
) {
700 skip
= strlen(cur
) + 1;
702 sep
= strchr(cur
, '=');
707 if (!strcmp(cur
, "INTERFACE"))
709 else if (!strcmp(cur
, "SUBSYSTEM")) {
711 if (strcmp(subsystem
, "net") != 0)
713 } else if (!strcmp(cur
, "DEVPATH_OLD")) {
714 interface_old
= strrchr(sep
+ 1, '/');
720 if (subsystem
&& interface
) {
721 if (move
&& interface_old
)
730 dev
= device_find(interface_old
);
734 if (dev
->type
!= &simple_device_type
)
737 device_set_present(dev
, false);
742 dev
= device_find(interface
);
746 if (dev
->type
!= &simple_device_type
)
749 device_set_present(dev
, add
);
753 handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
)
755 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
756 struct sockaddr_nl nla
;
757 unsigned char *buf
= NULL
;
760 socklen_t errlen
= sizeof(err
);
763 while ((size
= nl_recv(ev
->sock
, &nla
, &buf
, NULL
)) > 0) {
765 handle_hotplug_msg((char *) buf
, size
);
772 if (getsockopt(u
->fd
, SOL_SOCKET
, SO_ERROR
, (void *)&err
, &errlen
))
777 /* Increase rx buffer size on netlink socket */
779 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
790 uloop_fd_delete(&ev
->uloop
);
794 static int system_rtnl_call(struct nl_msg
*msg
)
798 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
804 return nl_wait_for_ack(sock_rtnl
);
807 int system_bridge_delbr(struct device
*bridge
)
809 return ioctl(sock_ioctl
, SIOCBRDELBR
, bridge
->ifname
);
812 static int system_bridge_if(const char *bridge
, struct device
*dev
, int cmd
, void *data
)
816 memset(&ifr
, 0, sizeof(ifr
));
818 ifr
.ifr_ifindex
= dev
->ifindex
;
821 strncpy(ifr
.ifr_name
, bridge
, sizeof(ifr
.ifr_name
) - 1);
822 return ioctl(sock_ioctl
, cmd
, &ifr
);
825 static bool system_is_bridge(const char *name
, char *buf
, int buflen
)
829 snprintf(buf
, buflen
, "/sys/devices/virtual/net/%s/bridge", name
);
830 if (stat(buf
, &st
) < 0)
836 static char *system_get_bridge(const char *name
, char *buf
, int buflen
)
842 snprintf(buf
, buflen
, "/sys/devices/virtual/net/*/brif/%s/bridge", name
);
843 if (glob(buf
, GLOB_NOSORT
, NULL
, &gl
) < 0)
847 len
= readlink(gl
.gl_pathv
[0], buf
, buflen
);
855 path
= strrchr(buf
, '/');
863 system_bridge_set_wireless(struct device
*bridge
, struct device
*dev
)
865 bool mcast_to_ucast
= dev
->wireless_ap
;
868 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
&&
869 !bridge
->settings
.multicast_to_unicast
)
870 mcast_to_ucast
= false;
872 if (!mcast_to_ucast
|| dev
->wireless_isolate
)
875 system_bridge_set_multicast_to_unicast(dev
, mcast_to_ucast
? "1" : "0");
876 system_bridge_set_hairpin_mode(dev
, hairpin
? "1" : "0");
879 int system_bridge_addif(struct device
*bridge
, struct device
*dev
)
888 oldbr
= system_get_bridge(dev
->ifname
, dev_buf
, sizeof(dev_buf
));
889 if (!oldbr
|| strcmp(oldbr
, bridge
->ifname
) != 0) {
890 ret
= system_bridge_if(bridge
->ifname
, dev
, SIOCBRADDIF
, NULL
);
892 D(SYSTEM
, "Failed to add device '%s' to bridge '%s' (tries=%d): %s\n",
893 dev
->ifname
, bridge
->ifname
, tries
, strerror(errno
));
899 system_bridge_set_wireless(bridge
, dev
);
901 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
902 snprintf(buf
, sizeof(buf
), "%u", dev
->settings
.multicast_router
);
903 system_bridge_set_multicast_router(dev
, buf
, false);
906 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
&&
907 dev
->settings
.multicast_fast_leave
)
908 system_bridge_set_multicast_fast_leave(dev
, "1");
910 if (dev
->settings
.flags
& DEV_OPT_LEARNING
&&
911 !dev
->settings
.learning
)
912 system_bridge_set_learning(dev
, "0");
914 if (dev
->settings
.flags
& DEV_OPT_UNICAST_FLOOD
&&
915 !dev
->settings
.unicast_flood
)
916 system_bridge_set_unicast_flood(dev
, "0");
918 if (dev
->settings
.flags
& DEV_OPT_ISOLATE
&&
919 dev
->settings
.isolate
)
920 system_bridge_set_isolated(dev
, "1");
925 int system_bridge_delif(struct device
*bridge
, struct device
*dev
)
927 return system_bridge_if(bridge
->ifname
, dev
, SIOCBRDELIF
, NULL
);
930 int system_bridge_vlan(const char *iface
, uint16_t vid
, bool add
, unsigned int vflags
)
932 struct ifinfomsg ifi
= { .ifi_family
= PF_BRIDGE
, };
933 struct bridge_vlan_info vinfo
= { .vid
= vid
, };
934 unsigned short flags
= 0;
935 struct nlattr
*afspec
;
939 ifi
.ifi_index
= if_nametoindex(iface
);
943 nlm
= nlmsg_alloc_simple(add
? RTM_SETLINK
: RTM_DELLINK
, NLM_F_REQUEST
);
947 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
949 if (vflags
& BRVLAN_F_SELF
)
950 flags
|= BRIDGE_FLAGS_SELF
;
952 if (vflags
& BRVLAN_F_PVID
)
953 vinfo
.flags
|= BRIDGE_VLAN_INFO_PVID
;
955 if (vflags
& BRVLAN_F_UNTAGGED
)
956 vinfo
.flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
958 afspec
= nla_nest_start(nlm
, IFLA_AF_SPEC
);
965 nla_put_u16(nlm
, IFLA_BRIDGE_FLAGS
, flags
);
967 nla_put(nlm
, IFLA_BRIDGE_VLAN_INFO
, sizeof(vinfo
), &vinfo
);
968 nla_nest_end(nlm
, afspec
);
970 return system_rtnl_call(nlm
);
977 int system_if_resolve(struct device
*dev
)
981 memset(&ifr
, 0, sizeof(ifr
));
982 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
983 if (!ioctl(sock_ioctl
, SIOCGIFINDEX
, &ifr
))
984 return ifr
.ifr_ifindex
;
989 static int system_if_flags(const char *ifname
, unsigned add
, unsigned rem
)
993 memset(&ifr
, 0, sizeof(ifr
));
994 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
995 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) < 0)
998 ifr
.ifr_flags
|= add
;
999 ifr
.ifr_flags
&= ~rem
;
1000 return ioctl(sock_ioctl
, SIOCSIFFLAGS
, &ifr
);
1012 static bool check_ifaddr(struct nlmsghdr
*hdr
, int ifindex
)
1014 struct ifaddrmsg
*ifa
= NLMSG_DATA(hdr
);
1016 return ifa
->ifa_index
== ifindex
;
1019 static bool check_route(struct nlmsghdr
*hdr
, int ifindex
)
1021 struct rtmsg
*r
= NLMSG_DATA(hdr
);
1022 struct nlattr
*tb
[__RTA_MAX
];
1024 if (r
->rtm_protocol
== RTPROT_KERNEL
&&
1025 r
->rtm_family
== AF_INET6
)
1028 nlmsg_parse(hdr
, sizeof(struct rtmsg
), tb
, __RTA_MAX
- 1, NULL
);
1032 return *(int *)RTA_DATA(tb
[RTA_OIF
]) == ifindex
;
1035 static bool check_rule(struct nlmsghdr
*hdr
, int ifindex
)
1040 static int cb_clear_event(struct nl_msg
*msg
, void *arg
)
1042 struct clear_data
*clr
= arg
;
1043 struct nlmsghdr
*hdr
= nlmsg_hdr(msg
);
1044 bool (*cb
)(struct nlmsghdr
*, int ifindex
);
1050 if (hdr
->nlmsg_type
!= RTM_NEWADDR
)
1056 type
= RTM_DELROUTE
;
1057 if (hdr
->nlmsg_type
!= RTM_NEWROUTE
)
1064 if (hdr
->nlmsg_type
!= RTM_NEWRULE
)
1073 if (!cb(hdr
, clr
->dev
? clr
->dev
->ifindex
: 0))
1076 if (type
== RTM_DELRULE
)
1077 D(SYSTEM
, "Remove a rule\n");
1079 D(SYSTEM
, "Remove %s from device %s\n",
1080 type
== RTM_DELADDR
? "an address" : "a route",
1083 memcpy(nlmsg_hdr(clr
->msg
), hdr
, hdr
->nlmsg_len
);
1084 hdr
= nlmsg_hdr(clr
->msg
);
1085 hdr
->nlmsg_type
= type
;
1086 hdr
->nlmsg_flags
= NLM_F_REQUEST
;
1088 nl_socket_disable_auto_ack(sock_rtnl
);
1089 ret
= nl_send_auto_complete(sock_rtnl
, clr
->msg
);
1091 if (type
== RTM_DELRULE
)
1092 D(SYSTEM
, "Error deleting a rule: %d\n", ret
);
1094 D(SYSTEM
, "Error deleting %s from device '%s': %d\n",
1095 type
== RTM_DELADDR
? "an address" : "a route",
1096 clr
->dev
->ifname
, ret
);
1099 nl_socket_enable_auto_ack(sock_rtnl
);
1105 cb_finish_event(struct nl_msg
*msg
, void *arg
)
1113 error_handler(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1116 *pending
= err
->error
;
1121 system_if_clear_entries(struct device
*dev
, int type
, int af
)
1123 struct clear_data clr
;
1125 struct rtmsg rtm
= {
1127 .rtm_flags
= RTM_F_CLONED
,
1129 int flags
= NLM_F_DUMP
;
1138 clr
.size
= sizeof(struct rtgenmsg
);
1141 clr
.size
= sizeof(struct rtmsg
);
1147 cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1151 clr
.msg
= nlmsg_alloc_simple(type
, flags
);
1155 nlmsg_append(clr
.msg
, &rtm
, clr
.size
, 0);
1156 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_clear_event
, &clr
);
1157 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, cb_finish_event
, &pending
);
1158 nl_cb_err(cb
, NL_CB_CUSTOM
, error_handler
, &pending
);
1160 if (nl_send_auto_complete(sock_rtnl
, clr
.msg
) < 0)
1164 nl_recvmsgs(sock_rtnl
, cb
);
1167 nlmsg_free(clr
.msg
);
1173 * Clear bridge (membership) state and bring down device
1175 void system_if_clear_state(struct device
*dev
)
1177 static char buf
[256];
1179 device_set_ifindex(dev
, system_if_resolve(dev
));
1181 if (dev
->external
|| !dev
->ifindex
)
1184 system_if_flags(dev
->ifname
, 0, IFF_UP
);
1186 if (system_is_bridge(dev
->ifname
, buf
, sizeof(buf
))) {
1187 D(SYSTEM
, "Delete existing bridge named '%s'\n", dev
->ifname
);
1188 system_bridge_delbr(dev
);
1192 bridge
= system_get_bridge(dev
->ifname
, buf
, sizeof(buf
));
1194 D(SYSTEM
, "Remove device '%s' from bridge '%s'\n", dev
->ifname
, bridge
);
1195 system_bridge_if(bridge
, dev
, SIOCBRDELIF
, NULL
);
1198 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET
);
1199 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET
);
1200 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET6
);
1201 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET6
);
1202 system_if_clear_entries(dev
, RTM_GETNEIGH
, AF_INET
);
1203 system_if_clear_entries(dev
, RTM_GETNEIGH
, AF_INET6
);
1204 system_set_disable_ipv6(dev
, "0");
1207 static inline unsigned long
1208 sec_to_jiffies(int val
)
1210 return (unsigned long) val
* 100;
1213 static void system_bridge_conf_multicast_deps(struct device
*bridge
,
1214 struct bridge_config
*cfg
,
1220 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
||
1221 cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
||
1222 cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
1223 val
= cfg
->robustness
* cfg
->query_interval
+
1224 cfg
->query_response_interval
;
1226 snprintf(buf
, buf_len
, "%i", val
);
1227 system_bridge_set_membership_interval(bridge
, buf
);
1229 val
= cfg
->robustness
* cfg
->query_interval
+
1230 cfg
->query_response_interval
/ 2;
1232 snprintf(buf
, buf_len
, "%i", val
);
1233 system_bridge_set_other_querier_timeout(bridge
, buf
);
1236 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1237 val
= cfg
->query_interval
/ 4;
1239 snprintf(buf
, buf_len
, "%i", val
);
1240 system_bridge_set_startup_query_interval(bridge
, buf
);
1244 static void system_bridge_conf_multicast(struct device
*bridge
,
1245 struct bridge_config
*cfg
,
1249 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_snooping",
1250 bridge
->ifname
, cfg
->igmp_snoop
? "1" : "0");
1252 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier",
1253 bridge
->ifname
, cfg
->multicast_querier
? "1" : "0");
1255 snprintf(buf
, buf_len
, "%i", cfg
->hash_max
);
1256 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/hash_max",
1257 bridge
->ifname
, buf
);
1259 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
1260 snprintf(buf
, buf_len
, "%u", bridge
->settings
.multicast_router
);
1261 system_bridge_set_multicast_router(bridge
, buf
, true);
1264 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
) {
1265 snprintf(buf
, buf_len
, "%i", cfg
->robustness
);
1266 system_bridge_set_robustness(bridge
, buf
);
1269 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1270 snprintf(buf
, buf_len
, "%i", cfg
->query_interval
);
1271 system_bridge_set_query_interval(bridge
, buf
);
1274 if (cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
1275 snprintf(buf
, buf_len
, "%i", cfg
->query_response_interval
);
1276 system_bridge_set_query_response_interval(bridge
, buf
);
1279 if (cfg
->flags
& BRIDGE_OPT_LAST_MEMBER_INTERVAL
) {
1280 snprintf(buf
, buf_len
, "%i", cfg
->last_member_interval
);
1281 system_bridge_set_last_member_interval(bridge
, buf
);
1284 system_bridge_conf_multicast_deps(bridge
, cfg
, buf
, buf_len
);
1287 int system_bridge_addbr(struct device
*bridge
, struct bridge_config
*cfg
)
1291 if (ioctl(sock_ioctl
, SIOCBRADDBR
, bridge
->ifname
) < 0)
1294 system_bridge_set_stp_state(bridge
, cfg
->stp
? "1" : "0");
1296 snprintf(buf
, sizeof(buf
), "%lu", sec_to_jiffies(cfg
->forward_delay
));
1297 system_bridge_set_forward_delay(bridge
, buf
);
1299 system_bridge_conf_multicast(bridge
, cfg
, buf
, sizeof(buf
));
1300 system_bridge_set_vlan_filtering(bridge
, cfg
->vlan_filtering
? "1" : "0");
1302 snprintf(buf
, sizeof(buf
), "%d", cfg
->priority
);
1303 system_bridge_set_priority(bridge
, buf
);
1305 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
) {
1306 snprintf(buf
, sizeof(buf
), "%lu", sec_to_jiffies(cfg
->ageing_time
));
1307 system_bridge_set_ageing_time(bridge
, buf
);
1310 if (cfg
->flags
& BRIDGE_OPT_HELLO_TIME
) {
1311 snprintf(buf
, sizeof(buf
), "%lu", sec_to_jiffies(cfg
->hello_time
));
1312 system_bridge_set_hello_time(bridge
, buf
);
1315 if (cfg
->flags
& BRIDGE_OPT_MAX_AGE
) {
1316 snprintf(buf
, sizeof(buf
), "%lu", sec_to_jiffies(cfg
->max_age
));
1317 system_bridge_set_max_age(bridge
, buf
);
1323 int system_macvlan_add(struct device
*macvlan
, struct device
*dev
, struct macvlan_config
*cfg
)
1326 struct nlattr
*linkinfo
, *data
;
1327 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
1329 static const struct {
1331 enum macvlan_mode val
;
1333 { "private", MACVLAN_MODE_PRIVATE
},
1334 { "vepa", MACVLAN_MODE_VEPA
},
1335 { "bridge", MACVLAN_MODE_BRIDGE
},
1336 { "passthru", MACVLAN_MODE_PASSTHRU
},
1339 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1344 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1346 if (cfg
->flags
& MACVLAN_OPT_MACADDR
)
1347 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1348 nla_put_string(msg
, IFLA_IFNAME
, macvlan
->ifname
);
1349 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1351 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1352 goto nla_put_failure
;
1354 nla_put_string(msg
, IFLA_INFO_KIND
, "macvlan");
1356 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1357 goto nla_put_failure
;
1360 for (i
= 0; i
< ARRAY_SIZE(modes
); i
++) {
1361 if (strcmp(cfg
->mode
, modes
[i
].name
) != 0)
1364 nla_put_u32(msg
, IFLA_MACVLAN_MODE
, modes
[i
].val
);
1369 nla_nest_end(msg
, data
);
1370 nla_nest_end(msg
, linkinfo
);
1372 rv
= system_rtnl_call(msg
);
1374 D(SYSTEM
, "Error adding macvlan '%s' over '%s': %d\n", macvlan
->ifname
, dev
->ifname
, rv
);
1383 int system_link_netns_move(struct device
*dev
, int netns_fd
, const char *target_ifname
)
1386 struct ifinfomsg iim
= {
1387 .ifi_family
= AF_UNSPEC
,
1393 iim
.ifi_index
= system_if_resolve(dev
);
1394 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
);
1399 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1401 nla_put_string(msg
, IFLA_IFNAME
, target_ifname
);
1403 nla_put_u32(msg
, IFLA_NET_NS_FD
, netns_fd
);
1404 return system_rtnl_call(msg
);
1407 static int system_link_del(const char *ifname
)
1410 struct ifinfomsg iim
= {
1411 .ifi_family
= AF_UNSPEC
,
1415 msg
= nlmsg_alloc_simple(RTM_DELLINK
, NLM_F_REQUEST
);
1420 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1421 nla_put_string(msg
, IFLA_IFNAME
, ifname
);
1422 return system_rtnl_call(msg
);
1425 int system_macvlan_del(struct device
*macvlan
)
1427 return system_link_del(macvlan
->ifname
);
1430 int system_netns_open(const pid_t target_ns
)
1432 char pid_net_path
[PATH_MAX
];
1434 snprintf(pid_net_path
, sizeof(pid_net_path
), "/proc/%u/ns/net", target_ns
);
1436 return open(pid_net_path
, O_RDONLY
);
1439 int system_netns_set(int netns_fd
)
1441 return setns(netns_fd
, CLONE_NEWNET
);
1444 int system_veth_add(struct device
*veth
, struct veth_config
*cfg
)
1447 struct ifinfomsg empty_iim
= {};
1448 struct nlattr
*linkinfo
, *data
, *veth_info
;
1451 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1456 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1458 if (cfg
->flags
& VETH_OPT_MACADDR
)
1459 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1460 nla_put_string(msg
, IFLA_IFNAME
, veth
->ifname
);
1462 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1463 goto nla_put_failure
;
1465 nla_put_string(msg
, IFLA_INFO_KIND
, "veth");
1467 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1468 goto nla_put_failure
;
1470 if (!(veth_info
= nla_nest_start(msg
, VETH_INFO_PEER
)))
1471 goto nla_put_failure
;
1473 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1475 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1476 nla_put_string(msg
, IFLA_IFNAME
, cfg
->peer_name
);
1477 if (cfg
->flags
& VETH_OPT_PEER_MACADDR
)
1478 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->peer_macaddr
), cfg
->peer_macaddr
);
1480 nla_nest_end(msg
, veth_info
);
1481 nla_nest_end(msg
, data
);
1482 nla_nest_end(msg
, linkinfo
);
1484 rv
= system_rtnl_call(msg
);
1486 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1487 D(SYSTEM
, "Error adding veth '%s' with peer '%s': %d\n", veth
->ifname
, cfg
->peer_name
, rv
);
1489 D(SYSTEM
, "Error adding veth '%s': %d\n", veth
->ifname
, rv
);
1499 int system_veth_del(struct device
*veth
)
1501 return system_link_del(veth
->ifname
);
1504 static int system_vlan(struct device
*dev
, int id
)
1506 struct vlan_ioctl_args ifr
= {
1507 .cmd
= SET_VLAN_NAME_TYPE_CMD
,
1508 .u
.name_type
= VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
,
1511 if (ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
) < 0)
1515 ifr
.cmd
= DEL_VLAN_CMD
;
1518 ifr
.cmd
= ADD_VLAN_CMD
;
1521 strncpy(ifr
.device1
, dev
->ifname
, sizeof(ifr
.device1
));
1522 return ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
1525 int system_vlan_add(struct device
*dev
, int id
)
1527 return system_vlan(dev
, id
);
1530 int system_vlan_del(struct device
*dev
)
1532 return system_vlan(dev
, -1);
1535 int system_vlandev_add(struct device
*vlandev
, struct device
*dev
, struct vlandev_config
*cfg
)
1538 struct nlattr
*linkinfo
, *data
, *qos
;
1539 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
};
1540 struct vlan_qos_mapping
*elem
;
1541 struct ifla_vlan_qos_mapping nl_qos_map
;
1544 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1549 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1550 nla_put_string(msg
, IFLA_IFNAME
, vlandev
->ifname
);
1551 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1553 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1554 goto nla_put_failure
;
1556 nla_put_string(msg
, IFLA_INFO_KIND
, "vlan");
1558 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1559 goto nla_put_failure
;
1561 nla_put_u16(msg
, IFLA_VLAN_ID
, cfg
->vid
);
1563 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
1564 nla_put_u16(msg
, IFLA_VLAN_PROTOCOL
, htons(cfg
->proto
));
1566 if(cfg
->proto
== VLAN_PROTO_8021AD
)
1567 netifd_log_message(L_WARNING
, "%s Your kernel is older than linux 3.10.0, 802.1ad is not supported defaulting to 802.1q", vlandev
->type
->name
);
1570 if (!(qos
= nla_nest_start(msg
, IFLA_VLAN_INGRESS_QOS
)))
1571 goto nla_put_failure
;
1573 vlist_simple_for_each_element(&cfg
->ingress_qos_mapping_list
, elem
, node
) {
1574 nl_qos_map
.from
= elem
->from
;
1575 nl_qos_map
.to
= elem
->to
;
1576 nla_put(msg
, IFLA_VLAN_QOS_MAPPING
, sizeof(nl_qos_map
), &nl_qos_map
);
1578 nla_nest_end(msg
, qos
);
1580 if (!(qos
= nla_nest_start(msg
, IFLA_VLAN_EGRESS_QOS
)))
1581 goto nla_put_failure
;
1583 vlist_simple_for_each_element(&cfg
->egress_qos_mapping_list
, elem
, node
) {
1584 nl_qos_map
.from
= elem
->from
;
1585 nl_qos_map
.to
= elem
->to
;
1586 nla_put(msg
, IFLA_VLAN_QOS_MAPPING
, sizeof(nl_qos_map
), &nl_qos_map
);
1588 nla_nest_end(msg
, qos
);
1590 nla_nest_end(msg
, data
);
1591 nla_nest_end(msg
, linkinfo
);
1593 rv
= system_rtnl_call(msg
);
1595 D(SYSTEM
, "Error adding vlandev '%s' over '%s': %d\n", vlandev
->ifname
, dev
->ifname
, rv
);
1604 int system_vlandev_del(struct device
*vlandev
)
1606 return system_link_del(vlandev
->ifname
);
1610 system_if_get_settings(struct device
*dev
, struct device_settings
*s
)
1615 memset(&ifr
, 0, sizeof(ifr
));
1616 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1618 if (ioctl(sock_ioctl
, SIOCGIFMTU
, &ifr
) == 0) {
1619 s
->mtu
= ifr
.ifr_mtu
;
1620 s
->flags
|= DEV_OPT_MTU
;
1623 s
->mtu6
= system_update_ipv6_mtu(dev
, 0);
1625 s
->flags
|= DEV_OPT_MTU6
;
1627 if (ioctl(sock_ioctl
, SIOCGIFTXQLEN
, &ifr
) == 0) {
1628 s
->txqueuelen
= ifr
.ifr_qlen
;
1629 s
->flags
|= DEV_OPT_TXQUEUELEN
;
1632 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0) {
1633 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
1634 s
->flags
|= DEV_OPT_MACADDR
;
1637 if (!system_get_disable_ipv6(dev
, buf
, sizeof(buf
))) {
1638 s
->ipv6
= !strtoul(buf
, NULL
, 0);
1639 s
->flags
|= DEV_OPT_IPV6
;
1642 if (!system_get_ip6segmentrouting(dev
, buf
, sizeof(buf
))) {
1643 s
->ip6segmentrouting
= strtoul(buf
, NULL
, 0);
1644 s
->flags
|= DEV_OPT_IP6SEGMENTROUTING
;
1647 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) == 0) {
1648 s
->promisc
= ifr
.ifr_flags
& IFF_PROMISC
;
1649 s
->flags
|= DEV_OPT_PROMISC
;
1651 s
->multicast
= ifr
.ifr_flags
& IFF_MULTICAST
;
1652 s
->flags
|= DEV_OPT_MULTICAST
;
1655 if (!system_get_rpfilter(dev
, buf
, sizeof(buf
))) {
1656 s
->rpfilter
= strtoul(buf
, NULL
, 0);
1657 s
->flags
|= DEV_OPT_RPFILTER
;
1660 if (!system_get_acceptlocal(dev
, buf
, sizeof(buf
))) {
1661 s
->acceptlocal
= strtoul(buf
, NULL
, 0);
1662 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
1665 if (!system_get_igmpversion(dev
, buf
, sizeof(buf
))) {
1666 s
->igmpversion
= strtoul(buf
, NULL
, 0);
1667 s
->flags
|= DEV_OPT_IGMPVERSION
;
1670 if (!system_get_mldversion(dev
, buf
, sizeof(buf
))) {
1671 s
->mldversion
= strtoul(buf
, NULL
, 0);
1672 s
->flags
|= DEV_OPT_MLDVERSION
;
1675 if (!system_get_neigh4reachabletime(dev
, buf
, sizeof(buf
))) {
1676 s
->neigh4reachabletime
= strtoul(buf
, NULL
, 0);
1677 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1680 if (!system_get_neigh6reachabletime(dev
, buf
, sizeof(buf
))) {
1681 s
->neigh6reachabletime
= strtoul(buf
, NULL
, 0);
1682 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1685 if (!system_get_neigh4locktime(dev
, buf
, sizeof(buf
))) {
1686 s
->neigh4locktime
= strtol(buf
, NULL
, 0);
1687 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
1690 if (!system_get_neigh4gcstaletime(dev
, buf
, sizeof(buf
))) {
1691 s
->neigh4gcstaletime
= strtoul(buf
, NULL
, 0);
1692 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1695 if (!system_get_neigh6gcstaletime(dev
, buf
, sizeof(buf
))) {
1696 s
->neigh6gcstaletime
= strtoul(buf
, NULL
, 0);
1697 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1700 if (!system_get_dadtransmits(dev
, buf
, sizeof(buf
))) {
1701 s
->dadtransmits
= strtoul(buf
, NULL
, 0);
1702 s
->flags
|= DEV_OPT_DADTRANSMITS
;
1705 if (!system_get_sendredirects(dev
, buf
, sizeof(buf
))) {
1706 s
->sendredirects
= strtoul(buf
, NULL
, 0);
1707 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
1710 if (!system_get_drop_v4_unicast_in_l2_multicast(dev
, buf
, sizeof(buf
))) {
1711 s
->drop_v4_unicast_in_l2_multicast
= strtoul(buf
, NULL
, 0);
1712 s
->flags
|= DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
;
1715 if (!system_get_drop_v6_unicast_in_l2_multicast(dev
, buf
, sizeof(buf
))) {
1716 s
->drop_v6_unicast_in_l2_multicast
= strtoul(buf
, NULL
, 0);
1717 s
->flags
|= DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
;
1720 if (!system_get_drop_gratuitous_arp(dev
, buf
, sizeof(buf
))) {
1721 s
->drop_gratuitous_arp
= strtoul(buf
, NULL
, 0);
1722 s
->flags
|= DEV_OPT_DROP_GRATUITOUS_ARP
;
1725 if (!system_get_drop_unsolicited_na(dev
, buf
, sizeof(buf
))) {
1726 s
->drop_unsolicited_na
= strtoul(buf
, NULL
, 0);
1727 s
->flags
|= DEV_OPT_DROP_UNSOLICITED_NA
;
1730 if (!system_get_arp_accept(dev
, buf
, sizeof(buf
))) {
1731 s
->arp_accept
= strtoul(buf
, NULL
, 0);
1732 s
->flags
|= DEV_OPT_ARP_ACCEPT
;
1737 system_if_apply_settings(struct device
*dev
, struct device_settings
*s
, unsigned int apply_mask
)
1742 apply_mask
&= s
->flags
;
1744 memset(&ifr
, 0, sizeof(ifr
));
1745 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1746 if (apply_mask
& DEV_OPT_MTU
) {
1747 ifr
.ifr_mtu
= s
->mtu
;
1748 if (ioctl(sock_ioctl
, SIOCSIFMTU
, &ifr
) < 0)
1749 s
->flags
&= ~DEV_OPT_MTU
;
1751 if (apply_mask
& DEV_OPT_MTU6
) {
1752 system_update_ipv6_mtu(dev
, s
->mtu6
);
1754 if (apply_mask
& DEV_OPT_TXQUEUELEN
) {
1755 ifr
.ifr_qlen
= s
->txqueuelen
;
1756 if (ioctl(sock_ioctl
, SIOCSIFTXQLEN
, &ifr
) < 0)
1757 s
->flags
&= ~DEV_OPT_TXQUEUELEN
;
1759 if ((apply_mask
& (DEV_OPT_MACADDR
| DEV_OPT_DEFAULT_MACADDR
)) && !dev
->external
) {
1760 ifr
.ifr_hwaddr
.sa_family
= ARPHRD_ETHER
;
1761 memcpy(&ifr
.ifr_hwaddr
.sa_data
, s
->macaddr
, sizeof(s
->macaddr
));
1762 if (ioctl(sock_ioctl
, SIOCSIFHWADDR
, &ifr
) < 0)
1763 s
->flags
&= ~DEV_OPT_MACADDR
;
1765 if (apply_mask
& DEV_OPT_IPV6
)
1766 system_set_disable_ipv6(dev
, s
->ipv6
? "0" : "1");
1767 if (s
->flags
& DEV_OPT_IP6SEGMENTROUTING
& apply_mask
) {
1768 struct device dummy
= {
1771 bool ip6segmentrouting
= device_check_ip6segmentrouting();
1773 system_set_ip6segmentrouting(dev
, s
->ip6segmentrouting
? "1" : "0");
1774 system_set_ip6segmentrouting(&dummy
, ip6segmentrouting
? "1" : "0");
1776 if (apply_mask
& DEV_OPT_PROMISC
) {
1777 if (system_if_flags(dev
->ifname
, s
->promisc
? IFF_PROMISC
: 0,
1778 !s
->promisc
? IFF_PROMISC
: 0) < 0)
1779 s
->flags
&= ~DEV_OPT_PROMISC
;
1781 if (apply_mask
& DEV_OPT_RPFILTER
) {
1782 snprintf(buf
, sizeof(buf
), "%u", s
->rpfilter
);
1783 system_set_rpfilter(dev
, buf
);
1785 if (apply_mask
& DEV_OPT_ACCEPTLOCAL
)
1786 system_set_acceptlocal(dev
, s
->acceptlocal
? "1" : "0");
1787 if (apply_mask
& DEV_OPT_IGMPVERSION
) {
1788 snprintf(buf
, sizeof(buf
), "%u", s
->igmpversion
);
1789 system_set_igmpversion(dev
, buf
);
1791 if (apply_mask
& DEV_OPT_MLDVERSION
) {
1792 snprintf(buf
, sizeof(buf
), "%u", s
->mldversion
);
1793 system_set_mldversion(dev
, buf
);
1795 if (apply_mask
& DEV_OPT_NEIGHREACHABLETIME
) {
1796 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4reachabletime
);
1797 system_set_neigh4reachabletime(dev
, buf
);
1798 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6reachabletime
);
1799 system_set_neigh6reachabletime(dev
, buf
);
1801 if (apply_mask
& DEV_OPT_NEIGHLOCKTIME
) {
1802 snprintf(buf
, sizeof(buf
), "%d", s
->neigh4locktime
);
1803 system_set_neigh4locktime(dev
, buf
);
1805 if (apply_mask
& DEV_OPT_NEIGHGCSTALETIME
) {
1806 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4gcstaletime
);
1807 system_set_neigh4gcstaletime(dev
, buf
);
1808 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6gcstaletime
);
1809 system_set_neigh6gcstaletime(dev
, buf
);
1811 if (apply_mask
& DEV_OPT_DADTRANSMITS
) {
1812 snprintf(buf
, sizeof(buf
), "%u", s
->dadtransmits
);
1813 system_set_dadtransmits(dev
, buf
);
1815 if (apply_mask
& DEV_OPT_MULTICAST
) {
1816 if (system_if_flags(dev
->ifname
, s
->multicast
? IFF_MULTICAST
: 0,
1817 !s
->multicast
? IFF_MULTICAST
: 0) < 0)
1818 s
->flags
&= ~DEV_OPT_MULTICAST
;
1820 if (apply_mask
& DEV_OPT_SENDREDIRECTS
)
1821 system_set_sendredirects(dev
, s
->sendredirects
? "1" : "0");
1822 if (apply_mask
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
)
1823 system_set_drop_v4_unicast_in_l2_multicast(dev
, s
->drop_v4_unicast_in_l2_multicast
? "1" : "0");
1824 if (apply_mask
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
)
1825 system_set_drop_v6_unicast_in_l2_multicast(dev
, s
->drop_v6_unicast_in_l2_multicast
? "1" : "0");
1826 if (apply_mask
& DEV_OPT_DROP_GRATUITOUS_ARP
)
1827 system_set_drop_gratuitous_arp(dev
, s
->drop_gratuitous_arp
? "1" : "0");
1828 if (apply_mask
& DEV_OPT_DROP_UNSOLICITED_NA
)
1829 system_set_drop_unsolicited_na(dev
, s
->drop_unsolicited_na
? "1" : "0");
1830 if (apply_mask
& DEV_OPT_ARP_ACCEPT
)
1831 system_set_arp_accept(dev
, s
->arp_accept
? "1" : "0");
1834 int system_if_up(struct device
*dev
)
1836 return system_if_flags(dev
->ifname
, IFF_UP
, 0);
1839 int system_if_down(struct device
*dev
)
1841 return system_if_flags(dev
->ifname
, 0, IFF_UP
);
1844 struct if_check_data
{
1850 #ifndef IFF_LOWER_UP
1851 #define IFF_LOWER_UP 0x10000
1854 static int cb_if_check_valid(struct nl_msg
*msg
, void *arg
)
1856 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
1857 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
1858 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1860 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
1863 if (chk
->dev
->type
== &simple_device_type
)
1864 device_set_present(chk
->dev
, ifi
->ifi_index
> 0 ? true : false);
1865 device_set_link(chk
->dev
, ifi
->ifi_flags
& IFF_LOWER_UP
? true : false);
1870 static int cb_if_check_ack(struct nl_msg
*msg
, void *arg
)
1872 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1877 static int cb_if_check_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1879 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1881 if (chk
->dev
->type
== &simple_device_type
)
1882 device_set_present(chk
->dev
, false);
1883 device_set_link(chk
->dev
, false);
1884 chk
->pending
= err
->error
;
1889 int system_if_check(struct device
*dev
)
1891 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1893 struct ifinfomsg ifi
= {
1894 .ifi_family
= AF_UNSPEC
,
1897 struct if_check_data chk
= {
1906 msg
= nlmsg_alloc_simple(RTM_GETLINK
, 0);
1910 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
1911 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
1914 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_check_valid
, &chk
);
1915 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_check_ack
, &chk
);
1916 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_check_error
, &chk
);
1918 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
1922 while (chk
.pending
> 0)
1923 nl_recvmsgs(sock_rtnl
, cb
);
1935 system_if_get_parent(struct device
*dev
)
1937 char buf
[64], *devname
;
1938 int ifindex
, iflink
, len
;
1941 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/iflink", dev
->ifname
);
1942 f
= fopen(buf
, "r");
1946 len
= fread(buf
, 1, sizeof(buf
) - 1, f
);
1953 iflink
= strtoul(buf
, NULL
, 0);
1954 ifindex
= system_if_resolve(dev
);
1955 if (!iflink
|| iflink
== ifindex
)
1958 devname
= if_indextoname(iflink
, buf
);
1962 return device_get(devname
, true);
1966 read_string_file(int dir_fd
, const char *file
, char *buf
, int len
)
1972 fd
= openat(dir_fd
, file
, O_RDONLY
);
1977 len
= read(fd
, buf
, len
- 1);
1981 } else if (len
> 0) {
1984 c
= strchr(buf
, '\n');
1997 read_uint64_file(int dir_fd
, const char *file
, uint64_t *val
)
2002 ret
= read_string_file(dir_fd
, file
, buf
, sizeof(buf
));
2004 *val
= strtoull(buf
, NULL
, 0);
2009 /* Assume advertised flags == supported flags */
2010 static const struct {
2013 } ethtool_link_modes
[] = {
2014 { ADVERTISED_10baseT_Half
, "10baseT-H" },
2015 { ADVERTISED_10baseT_Full
, "10baseT-F" },
2016 { ADVERTISED_100baseT_Half
, "100baseT-H" },
2017 { ADVERTISED_100baseT_Full
, "100baseT-F" },
2018 { ADVERTISED_1000baseT_Half
, "1000baseT-H" },
2019 { ADVERTISED_1000baseT_Full
, "1000baseT-F" },
2020 { ADVERTISED_1000baseKX_Full
, "1000baseKX-F" },
2021 { ADVERTISED_2500baseX_Full
, "2500baseX-F" },
2022 { ADVERTISED_10000baseT_Full
, "10000baseT-F" },
2023 { ADVERTISED_10000baseKX4_Full
, "10000baseKX4-F" },
2024 { ADVERTISED_10000baseKR_Full
, "10000baseKR-F" },
2025 { ADVERTISED_20000baseMLD2_Full
, "20000baseMLD2-F" },
2026 { ADVERTISED_20000baseKR2_Full
, "20000baseKR2-F" },
2027 { ADVERTISED_40000baseKR4_Full
, "40000baseKR4-F" },
2028 { ADVERTISED_40000baseCR4_Full
, "40000baseCR4-F" },
2029 { ADVERTISED_40000baseSR4_Full
, "40000baseSR4-F" },
2030 { ADVERTISED_40000baseLR4_Full
, "40000baseLR4-F" },
2031 #ifdef ADVERTISED_56000baseKR4_Full
2032 { ADVERTISED_56000baseKR4_Full
, "56000baseKR4-F" },
2033 { ADVERTISED_56000baseCR4_Full
, "56000baseCR4-F" },
2034 { ADVERTISED_56000baseSR4_Full
, "56000baseSR4-F" },
2035 { ADVERTISED_56000baseLR4_Full
, "56000baseLR4-F" },
2039 static void system_add_link_modes(struct blob_buf
*b
, __u32 mask
)
2042 for (i
= 0; i
< ARRAY_SIZE(ethtool_link_modes
); i
++) {
2043 if (mask
& ethtool_link_modes
[i
].mask
)
2044 blobmsg_add_string(b
, NULL
, ethtool_link_modes
[i
].name
);
2049 system_if_force_external(const char *ifname
)
2054 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/phy80211", ifname
);
2055 return stat(buf
, &s
) == 0;
2059 system_if_dump_info(struct device
*dev
, struct blob_buf
*b
)
2061 struct ethtool_cmd ecmd
;
2066 memset(&ecmd
, 0, sizeof(ecmd
));
2067 memset(&ifr
, 0, sizeof(ifr
));
2068 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2069 ifr
.ifr_data
= (caddr_t
) &ecmd
;
2070 ecmd
.cmd
= ETHTOOL_GSET
;
2072 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) == 0) {
2073 c
= blobmsg_open_array(b
, "link-advertising");
2074 system_add_link_modes(b
, ecmd
.advertising
);
2075 blobmsg_close_array(b
, c
);
2077 c
= blobmsg_open_array(b
, "link-partner-advertising");
2078 system_add_link_modes(b
, ecmd
.lp_advertising
);
2079 blobmsg_close_array(b
, c
);
2081 c
= blobmsg_open_array(b
, "link-supported");
2082 system_add_link_modes(b
, ecmd
.supported
);
2083 blobmsg_close_array(b
, c
);
2085 s
= blobmsg_alloc_string_buffer(b
, "speed", 8);
2086 snprintf(s
, 8, "%d%c", ethtool_cmd_speed(&ecmd
),
2087 ecmd
.duplex
== DUPLEX_HALF
? 'H' : 'F');
2088 blobmsg_add_string_buffer(b
);
2090 blobmsg_add_u8(b
, "autoneg", !!ecmd
.autoneg
);
2097 system_if_dump_stats(struct device
*dev
, struct blob_buf
*b
)
2099 const char *const counters
[] = {
2100 "collisions", "rx_frame_errors", "tx_compressed",
2101 "multicast", "rx_length_errors", "tx_dropped",
2102 "rx_bytes", "rx_missed_errors", "tx_errors",
2103 "rx_compressed", "rx_over_errors", "tx_fifo_errors",
2104 "rx_crc_errors", "rx_packets", "tx_heartbeat_errors",
2105 "rx_dropped", "tx_aborted_errors", "tx_packets",
2106 "rx_errors", "tx_bytes", "tx_window_errors",
2107 "rx_fifo_errors", "tx_carrier_errors",
2114 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/statistics", dev
->ifname
);
2115 stats_dir
= open(buf
, O_DIRECTORY
);
2119 for (i
= 0; i
< ARRAY_SIZE(counters
); i
++)
2120 if (read_uint64_file(stats_dir
, counters
[i
], &val
))
2121 blobmsg_add_u64(b
, counters
[i
], val
);
2127 static int system_addr(struct device
*dev
, struct device_addr
*addr
, int cmd
)
2129 bool v4
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
);
2130 int alen
= v4
? 4 : 16;
2131 unsigned int flags
= 0;
2132 struct ifaddrmsg ifa
= {
2133 .ifa_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2134 .ifa_prefixlen
= addr
->mask
,
2135 .ifa_index
= dev
->ifindex
,
2139 if (cmd
== RTM_NEWADDR
)
2140 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
2142 msg
= nlmsg_alloc_simple(cmd
, flags
);
2146 nlmsg_append(msg
, &ifa
, sizeof(ifa
), 0);
2147 nla_put(msg
, IFA_LOCAL
, alen
, &addr
->addr
);
2149 if (addr
->broadcast
)
2150 nla_put_u32(msg
, IFA_BROADCAST
, addr
->broadcast
);
2151 if (addr
->point_to_point
)
2152 nla_put_u32(msg
, IFA_ADDRESS
, addr
->point_to_point
);
2154 time_t now
= system_get_rtime();
2155 struct ifa_cacheinfo cinfo
= {0xffffffffU
, 0xffffffffU
, 0, 0};
2157 if (addr
->preferred_until
) {
2158 int64_t preferred
= addr
->preferred_until
- now
;
2161 else if (preferred
> UINT32_MAX
)
2162 preferred
= UINT32_MAX
;
2164 cinfo
.ifa_prefered
= preferred
;
2167 if (addr
->valid_until
) {
2168 int64_t valid
= addr
->valid_until
- now
;
2173 else if (valid
> UINT32_MAX
)
2176 cinfo
.ifa_valid
= valid
;
2179 nla_put(msg
, IFA_CACHEINFO
, sizeof(cinfo
), &cinfo
);
2181 if (cmd
== RTM_NEWADDR
&& (addr
->flags
& DEVADDR_OFFLINK
))
2182 nla_put_u32(msg
, IFA_FLAGS
, IFA_F_NOPREFIXROUTE
);
2185 return system_rtnl_call(msg
);
2188 int system_add_address(struct device
*dev
, struct device_addr
*addr
)
2190 return system_addr(dev
, addr
, RTM_NEWADDR
);
2193 int system_del_address(struct device
*dev
, struct device_addr
*addr
)
2195 return system_addr(dev
, addr
, RTM_DELADDR
);
2198 static int system_neigh(struct device
*dev
, struct device_neighbor
*neighbor
, int cmd
)
2200 int alen
= ((neighbor
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
2201 unsigned int flags
= 0;
2202 struct ndmsg ndm
= {
2203 .ndm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2204 .ndm_ifindex
= dev
->ifindex
,
2205 .ndm_state
= NUD_PERMANENT
,
2206 .ndm_flags
= (neighbor
->proxy
? NTF_PROXY
: 0) | (neighbor
->router
? NTF_ROUTER
: 0),
2210 if (cmd
== RTM_NEWNEIGH
)
2211 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
2213 msg
= nlmsg_alloc_simple(cmd
, flags
);
2218 nlmsg_append(msg
, &ndm
, sizeof(ndm
), 0);
2220 nla_put(msg
, NDA_DST
, alen
, &neighbor
->addr
);
2221 if (neighbor
->flags
& DEVNEIGH_MAC
)
2222 nla_put(msg
, NDA_LLADDR
, sizeof(neighbor
->macaddr
), &neighbor
->macaddr
);
2225 return system_rtnl_call(msg
);
2228 int system_add_neighbor(struct device
*dev
, struct device_neighbor
*neighbor
)
2230 return system_neigh(dev
, neighbor
, RTM_NEWNEIGH
);
2233 int system_del_neighbor(struct device
*dev
, struct device_neighbor
*neighbor
)
2235 return system_neigh(dev
, neighbor
, RTM_DELNEIGH
);
2238 static int system_rt(struct device
*dev
, struct device_route
*route
, int cmd
)
2240 int alen
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
2242 unsigned int flags
= 0;
2245 have_gw
= !!route
->nexthop
.in
.s_addr
;
2247 have_gw
= route
->nexthop
.in6
.s6_addr32
[0] ||
2248 route
->nexthop
.in6
.s6_addr32
[1] ||
2249 route
->nexthop
.in6
.s6_addr32
[2] ||
2250 route
->nexthop
.in6
.s6_addr32
[3];
2252 unsigned int table
= (route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))
2253 ? route
->table
: RT_TABLE_MAIN
;
2255 struct rtmsg rtm
= {
2256 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2257 .rtm_dst_len
= route
->mask
,
2258 .rtm_src_len
= route
->sourcemask
,
2259 .rtm_table
= (table
< 256) ? table
: RT_TABLE_UNSPEC
,
2260 .rtm_protocol
= (route
->flags
& DEVROUTE_PROTO
) ? route
->proto
: RTPROT_STATIC
,
2261 .rtm_scope
= RT_SCOPE_NOWHERE
,
2262 .rtm_type
= (cmd
== RTM_DELROUTE
) ? 0: RTN_UNICAST
,
2263 .rtm_flags
= (route
->flags
& DEVROUTE_ONLINK
) ? RTNH_F_ONLINK
: 0,
2267 if (cmd
== RTM_NEWROUTE
) {
2268 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
2270 if (!dev
) { /* Add null-route */
2271 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
2272 rtm
.rtm_type
= RTN_UNREACHABLE
;
2275 rtm
.rtm_scope
= (have_gw
) ? RT_SCOPE_UNIVERSE
: RT_SCOPE_LINK
;
2278 if (route
->flags
& DEVROUTE_TYPE
) {
2279 rtm
.rtm_type
= route
->type
;
2280 if (!(route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))) {
2281 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_BROADCAST
||
2282 rtm
.rtm_type
== RTN_NAT
|| rtm
.rtm_type
== RTN_ANYCAST
)
2283 rtm
.rtm_table
= RT_TABLE_LOCAL
;
2286 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_NAT
) {
2287 rtm
.rtm_scope
= RT_SCOPE_HOST
;
2288 } else if (rtm
.rtm_type
== RTN_BROADCAST
|| rtm
.rtm_type
== RTN_MULTICAST
||
2289 rtm
.rtm_type
== RTN_ANYCAST
) {
2290 rtm
.rtm_scope
= RT_SCOPE_LINK
;
2291 } else if (rtm
.rtm_type
== RTN_BLACKHOLE
|| rtm
.rtm_type
== RTN_UNREACHABLE
||
2292 rtm
.rtm_type
== RTN_PROHIBIT
|| rtm
.rtm_type
== RTN_FAILED_POLICY
||
2293 rtm
.rtm_type
== RTN_THROW
) {
2294 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
2299 msg
= nlmsg_alloc_simple(cmd
, flags
);
2303 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
2306 nla_put(msg
, RTA_DST
, alen
, &route
->addr
);
2308 if (route
->sourcemask
) {
2309 if (rtm
.rtm_family
== AF_INET
)
2310 nla_put(msg
, RTA_PREFSRC
, alen
, &route
->source
);
2312 nla_put(msg
, RTA_SRC
, alen
, &route
->source
);
2315 if (route
->metric
> 0)
2316 nla_put_u32(msg
, RTA_PRIORITY
, route
->metric
);
2319 nla_put(msg
, RTA_GATEWAY
, alen
, &route
->nexthop
);
2322 nla_put_u32(msg
, RTA_OIF
, dev
->ifindex
);
2325 nla_put_u32(msg
, RTA_TABLE
, table
);
2327 if (route
->flags
& DEVROUTE_MTU
) {
2328 struct nlattr
*metrics
;
2330 if (!(metrics
= nla_nest_start(msg
, RTA_METRICS
)))
2331 goto nla_put_failure
;
2333 nla_put_u32(msg
, RTAX_MTU
, route
->mtu
);
2335 nla_nest_end(msg
, metrics
);
2338 return system_rtnl_call(msg
);
2345 int system_add_route(struct device
*dev
, struct device_route
*route
)
2347 return system_rt(dev
, route
, RTM_NEWROUTE
);
2350 int system_del_route(struct device
*dev
, struct device_route
*route
)
2352 return system_rt(dev
, route
, RTM_DELROUTE
);
2355 int system_flush_routes(void)
2357 const char *names
[] = {
2358 "/proc/sys/net/ipv4/route/flush",
2359 "/proc/sys/net/ipv6/route/flush"
2363 for (i
= 0; i
< ARRAY_SIZE(names
); i
++) {
2364 fd
= open(names
[i
], O_WRONLY
);
2368 if (write(fd
, "-1", 2)) {}
2374 bool system_resolve_rt_type(const char *type
, unsigned int *id
)
2376 return system_rtn_aton(type
, id
);
2379 bool system_resolve_rt_proto(const char *type
, unsigned int *id
)
2383 unsigned int n
, proto
= 256;
2384 n
= strtoul(type
, &e
, 0);
2385 if (!*e
&& e
!= type
)
2387 else if (!strcmp(type
, "unspec"))
2388 proto
= RTPROT_UNSPEC
;
2389 else if (!strcmp(type
, "kernel"))
2390 proto
= RTPROT_KERNEL
;
2391 else if (!strcmp(type
, "boot"))
2392 proto
= RTPROT_BOOT
;
2393 else if (!strcmp(type
, "static"))
2394 proto
= RTPROT_STATIC
;
2395 else if ((f
= fopen("/etc/iproute2/rt_protos", "r")) != NULL
) {
2396 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
) {
2397 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2400 n
= strtoul(e
, NULL
, 10);
2401 e
= strtok(NULL
, " \t\n");
2403 if (e
&& !strcmp(e
, type
)) {
2418 bool system_resolve_rt_table(const char *name
, unsigned int *id
)
2422 unsigned int n
, table
= RT_TABLE_UNSPEC
;
2424 /* first try to parse table as number */
2425 if ((n
= strtoul(name
, &e
, 0)) > 0 && !*e
)
2428 /* handle well known aliases */
2429 else if (!strcmp(name
, "default"))
2430 table
= RT_TABLE_DEFAULT
;
2431 else if (!strcmp(name
, "main"))
2432 table
= RT_TABLE_MAIN
;
2433 else if (!strcmp(name
, "local"))
2434 table
= RT_TABLE_LOCAL
;
2436 /* try to look up name in /etc/iproute2/rt_tables */
2437 else if ((f
= fopen("/etc/iproute2/rt_tables", "r")) != NULL
)
2439 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
)
2441 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2444 n
= strtoul(e
, NULL
, 10);
2445 e
= strtok(NULL
, " \t\n");
2447 if (e
&& !strcmp(e
, name
))
2457 if (table
== RT_TABLE_UNSPEC
)
2464 bool system_is_default_rt_table(unsigned int id
)
2466 return (id
== RT_TABLE_MAIN
);
2469 bool system_resolve_rpfilter(const char *filter
, unsigned int *id
)
2474 if (!strcmp(filter
, "strict"))
2476 else if (!strcmp(filter
, "loose"))
2479 n
= strtoul(filter
, &e
, 0);
2480 if (*e
|| e
== filter
|| n
> 2)
2488 static int system_iprule(struct iprule
*rule
, int cmd
)
2490 int alen
= ((rule
->flags
& IPRULE_FAMILY
) == IPRULE_INET4
) ? 4 : 16;
2493 struct rtmsg rtm
= {
2494 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2495 .rtm_protocol
= RTPROT_STATIC
,
2496 .rtm_scope
= RT_SCOPE_UNIVERSE
,
2497 .rtm_table
= RT_TABLE_UNSPEC
,
2498 .rtm_type
= RTN_UNSPEC
,
2502 if (cmd
== RTM_NEWRULE
)
2503 rtm
.rtm_type
= RTN_UNICAST
;
2506 rtm
.rtm_flags
|= FIB_RULE_INVERT
;
2508 if (rule
->flags
& IPRULE_SRC
)
2509 rtm
.rtm_src_len
= rule
->src_mask
;
2511 if (rule
->flags
& IPRULE_DEST
)
2512 rtm
.rtm_dst_len
= rule
->dest_mask
;
2514 if (rule
->flags
& IPRULE_TOS
)
2515 rtm
.rtm_tos
= rule
->tos
;
2517 if (rule
->flags
& IPRULE_LOOKUP
) {
2518 if (rule
->lookup
< 256)
2519 rtm
.rtm_table
= rule
->lookup
;
2522 if (rule
->flags
& IPRULE_ACTION
)
2523 rtm
.rtm_type
= rule
->action
;
2524 else if (rule
->flags
& IPRULE_GOTO
)
2525 rtm
.rtm_type
= FR_ACT_GOTO
;
2526 else if (!(rule
->flags
& (IPRULE_LOOKUP
| IPRULE_ACTION
| IPRULE_GOTO
)))
2527 rtm
.rtm_type
= FR_ACT_NOP
;
2529 msg
= nlmsg_alloc_simple(cmd
, NLM_F_REQUEST
);
2534 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
2536 if (rule
->flags
& IPRULE_IN
)
2537 nla_put(msg
, FRA_IFNAME
, strlen(rule
->in_dev
) + 1, rule
->in_dev
);
2539 if (rule
->flags
& IPRULE_OUT
)
2540 nla_put(msg
, FRA_OIFNAME
, strlen(rule
->out_dev
) + 1, rule
->out_dev
);
2542 if (rule
->flags
& IPRULE_SRC
)
2543 nla_put(msg
, FRA_SRC
, alen
, &rule
->src_addr
);
2545 if (rule
->flags
& IPRULE_DEST
)
2546 nla_put(msg
, FRA_DST
, alen
, &rule
->dest_addr
);
2548 if (rule
->flags
& IPRULE_PRIORITY
)
2549 nla_put_u32(msg
, FRA_PRIORITY
, rule
->priority
);
2550 else if (cmd
== RTM_NEWRULE
)
2551 nla_put_u32(msg
, FRA_PRIORITY
, rule
->order
);
2553 if (rule
->flags
& IPRULE_FWMARK
)
2554 nla_put_u32(msg
, FRA_FWMARK
, rule
->fwmark
);
2556 if (rule
->flags
& IPRULE_FWMASK
)
2557 nla_put_u32(msg
, FRA_FWMASK
, rule
->fwmask
);
2559 if (rule
->flags
& IPRULE_LOOKUP
) {
2560 if (rule
->lookup
>= 256)
2561 nla_put_u32(msg
, FRA_TABLE
, rule
->lookup
);
2564 if (rule
->flags
& IPRULE_SUP_PREFIXLEN
)
2565 nla_put_u32(msg
, FRA_SUPPRESS_PREFIXLEN
, rule
->sup_prefixlen
);
2567 if (rule
->flags
& IPRULE_GOTO
)
2568 nla_put_u32(msg
, FRA_GOTO
, rule
->gotoid
);
2570 return system_rtnl_call(msg
);
2573 int system_add_iprule(struct iprule
*rule
)
2575 return system_iprule(rule
, RTM_NEWRULE
);
2578 int system_del_iprule(struct iprule
*rule
)
2580 return system_iprule(rule
, RTM_DELRULE
);
2583 int system_flush_iprules(void)
2588 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET
);
2589 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET6
);
2591 memset(&rule
, 0, sizeof(rule
));
2594 rule
.flags
= IPRULE_INET4
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
2597 rule
.lookup
= RT_TABLE_LOCAL
;
2598 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2600 rule
.priority
= 32766;
2601 rule
.lookup
= RT_TABLE_MAIN
;
2602 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2604 rule
.priority
= 32767;
2605 rule
.lookup
= RT_TABLE_DEFAULT
;
2606 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2609 rule
.flags
= IPRULE_INET6
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
2612 rule
.lookup
= RT_TABLE_LOCAL
;
2613 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2615 rule
.priority
= 32766;
2616 rule
.lookup
= RT_TABLE_MAIN
;
2617 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2622 bool system_resolve_iprule_action(const char *action
, unsigned int *id
)
2624 return system_rtn_aton(action
, id
);
2627 time_t system_get_rtime(void)
2632 if (clock_gettime(CLOCK_MONOTONIC
, &ts
) == 0)
2635 if (gettimeofday(&tv
, NULL
) == 0)
2642 #define IP_DF 0x4000
2645 static int tunnel_ioctl(const char *name
, int cmd
, void *p
)
2649 memset(&ifr
, 0, sizeof(ifr
));
2650 strncpy(ifr
.ifr_name
, name
, sizeof(ifr
.ifr_name
) - 1);
2651 ifr
.ifr_ifru
.ifru_data
= p
;
2652 return ioctl(sock_ioctl
, cmd
, &ifr
);
2655 #ifdef IFLA_IPTUN_MAX
2656 static int system_add_ip6_tunnel(const char *name
, const unsigned int link
,
2657 struct blob_attr
**tb
)
2659 struct nl_msg
*nlm
= nlmsg_alloc_simple(RTM_NEWLINK
,
2660 NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2661 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
};
2662 struct blob_attr
*cur
;
2663 int ret
= 0, ttl
= 0;
2668 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2669 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2672 nla_put_u32(nlm
, IFLA_LINK
, link
);
2674 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2680 nla_put_string(nlm
, IFLA_INFO_KIND
, "ip6tnl");
2681 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2688 nla_put_u32(nlm
, IFLA_IPTUN_LINK
, link
);
2690 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2691 ttl
= blobmsg_get_u32(cur
);
2693 nla_put_u8(nlm
, IFLA_IPTUN_PROTO
, IPPROTO_IPIP
);
2694 nla_put_u8(nlm
, IFLA_IPTUN_TTL
, (ttl
) ? ttl
: 64);
2696 struct in6_addr in6buf
;
2697 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2698 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2702 nla_put(nlm
, IFLA_IPTUN_LOCAL
, sizeof(in6buf
), &in6buf
);
2705 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2706 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2710 nla_put(nlm
, IFLA_IPTUN_REMOTE
, sizeof(in6buf
), &in6buf
);
2713 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2714 struct blob_attr
*tb_data
[__IPIP6_DATA_ATTR_MAX
];
2715 uint32_t tun_flags
= IP6_TNL_F_IGN_ENCAP_LIMIT
;
2717 blobmsg_parse(ipip6_data_attr_list
.params
, __IPIP6_DATA_ATTR_MAX
, tb_data
,
2718 blobmsg_data(cur
), blobmsg_len(cur
));
2720 if ((cur
= tb_data
[IPIP6_DATA_ENCAPLIMIT
])) {
2721 char *str
= blobmsg_get_string(cur
);
2723 if (strcmp(str
, "ignore")) {
2725 unsigned encap_limit
= strtoul(str
, &e
, 0);
2727 if (e
== str
|| *e
|| encap_limit
> 255) {
2732 nla_put_u8(nlm
, IFLA_IPTUN_ENCAP_LIMIT
, encap_limit
);
2733 tun_flags
&= ~IP6_TNL_F_IGN_ENCAP_LIMIT
;
2737 #ifdef IFLA_IPTUN_FMR_MAX
2738 if ((cur
= tb_data
[IPIP6_DATA_FMRS
])) {
2739 struct blob_attr
*rcur
;
2740 unsigned rrem
, fmrcnt
= 0;
2741 struct nlattr
*fmrs
= nla_nest_start(nlm
, IFLA_IPTUN_FMRS
);
2748 blobmsg_for_each_attr(rcur
, cur
, rrem
) {
2749 struct blob_attr
*tb_fmr
[__FMR_DATA_ATTR_MAX
], *tb_cur
;
2750 struct in6_addr ip6prefix
;
2751 struct in_addr ip4prefix
;
2752 unsigned ip4len
, ip6len
, ealen
, offset
;
2754 blobmsg_parse(fmr_data_attr_list
.params
, __FMR_DATA_ATTR_MAX
, tb_fmr
,
2755 blobmsg_data(rcur
), blobmsg_len(rcur
));
2757 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX6
]) ||
2758 !parse_ip_and_netmask(AF_INET6
,
2759 blobmsg_data(tb_cur
), &ip6prefix
,
2765 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX4
]) ||
2766 !parse_ip_and_netmask(AF_INET
,
2767 blobmsg_data(tb_cur
), &ip4prefix
,
2773 if (!(tb_cur
= tb_fmr
[FMR_DATA_EALEN
])) {
2777 ealen
= blobmsg_get_u32(tb_cur
);
2779 if (!(tb_cur
= tb_fmr
[FMR_DATA_OFFSET
])) {
2783 offset
= blobmsg_get_u32(tb_cur
);
2785 struct nlattr
*rule
= nla_nest_start(nlm
, ++fmrcnt
);
2791 nla_put(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX
, sizeof(ip6prefix
), &ip6prefix
);
2792 nla_put(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX
, sizeof(ip4prefix
), &ip4prefix
);
2793 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX_LEN
, ip6len
);
2794 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX_LEN
, ip4len
);
2795 nla_put_u8(nlm
, IFLA_IPTUN_FMR_EA_LEN
, ealen
);
2796 nla_put_u8(nlm
, IFLA_IPTUN_FMR_OFFSET
, offset
);
2798 nla_nest_end(nlm
, rule
);
2801 nla_nest_end(nlm
, fmrs
);
2805 nla_put_u32(nlm
, IFLA_IPTUN_FLAGS
, tun_flags
);
2808 nla_nest_end(nlm
, infodata
);
2809 nla_nest_end(nlm
, linkinfo
);
2811 return system_rtnl_call(nlm
);
2819 #ifdef IFLA_IPTUN_MAX
2820 #define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
2821 static int system_add_gre_tunnel(const char *name
, const char *kind
,
2822 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
2825 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
2826 struct blob_attr
*cur
;
2827 uint32_t ikey
= 0, okey
= 0, flowinfo
= 0, flags6
= IP6_TNL_F_IGN_ENCAP_LIMIT
;
2828 uint16_t iflags
= 0, oflags
= 0;
2830 int ret
= 0, ttl
= 0;
2831 unsigned encap_limit
= 0;
2833 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2837 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2838 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2840 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2846 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
2847 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2854 nla_put_u32(nlm
, IFLA_GRE_LINK
, link
);
2856 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2857 ttl
= blobmsg_get_u32(cur
);
2859 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
2860 char *str
= blobmsg_get_string(cur
);
2861 if (strcmp(str
, "inherit")) {
2864 if (!system_tos_aton(str
, &uval
)) {
2870 flowinfo
|= htonl(uval
<< 20) & IP6_FLOWINFO_TCLASS
;
2875 flags6
|= IP6_TNL_F_USE_ORIG_TCLASS
;
2881 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2882 struct blob_attr
*tb_data
[__GRE_DATA_ATTR_MAX
];
2884 blobmsg_parse(gre_data_attr_list
.params
, __GRE_DATA_ATTR_MAX
, tb_data
,
2885 blobmsg_data(cur
), blobmsg_len(cur
));
2887 if ((cur
= tb_data
[GRE_DATA_IKEY
])) {
2888 if ((ikey
= blobmsg_get_u32(cur
)))
2892 if ((cur
= tb_data
[GRE_DATA_OKEY
])) {
2893 if ((okey
= blobmsg_get_u32(cur
)))
2897 if ((cur
= tb_data
[GRE_DATA_ICSUM
])) {
2898 if (blobmsg_get_bool(cur
))
2902 if ((cur
= tb_data
[GRE_DATA_OCSUM
])) {
2903 if (blobmsg_get_bool(cur
))
2907 if ((cur
= tb_data
[GRE_DATA_ISEQNO
])) {
2908 if (blobmsg_get_bool(cur
))
2912 if ((cur
= tb_data
[GRE_DATA_OSEQNO
])) {
2913 if (blobmsg_get_bool(cur
))
2917 if ((cur
= tb_data
[GRE_DATA_ENCAPLIMIT
])) {
2918 char *str
= blobmsg_get_string(cur
);
2920 if (strcmp(str
, "ignore")) {
2923 encap_limit
= strtoul(str
, &e
, 0);
2925 if (e
== str
|| *e
|| encap_limit
> 255) {
2930 flags6
&= ~IP6_TNL_F_IGN_ENCAP_LIMIT
;
2936 struct in6_addr in6buf
;
2937 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2938 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2942 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(in6buf
), &in6buf
);
2945 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2946 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2950 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(in6buf
), &in6buf
);
2953 if (!(flags6
& IP6_TNL_F_IGN_ENCAP_LIMIT
))
2954 nla_put_u8(nlm
, IFLA_GRE_ENCAP_LIMIT
, encap_limit
);
2957 nla_put_u32(nlm
, IFLA_GRE_FLOWINFO
, flowinfo
);
2960 nla_put_u32(nlm
, IFLA_GRE_FLAGS
, flags6
);
2965 struct in_addr inbuf
;
2968 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2969 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2973 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(inbuf
), &inbuf
);
2976 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2977 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2981 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(inbuf
), &inbuf
);
2983 if (IN_MULTICAST(ntohl(inbuf
.s_addr
))) {
2985 okey
= inbuf
.s_addr
;
2990 ikey
= inbuf
.s_addr
;
2996 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
2997 set_df
= blobmsg_get_bool(cur
);
3000 /* ttl != 0 and nopmtudisc are incompatible */
3008 nla_put_u8(nlm
, IFLA_GRE_PMTUDISC
, set_df
? 1 : 0);
3010 nla_put_u8(nlm
, IFLA_GRE_TOS
, tos
);
3014 nla_put_u8(nlm
, IFLA_GRE_TTL
, ttl
);
3017 nla_put_u16(nlm
, IFLA_GRE_OFLAGS
, oflags
);
3020 nla_put_u16(nlm
, IFLA_GRE_IFLAGS
, iflags
);
3023 nla_put_u32(nlm
, IFLA_GRE_OKEY
, htonl(okey
));
3026 nla_put_u32(nlm
, IFLA_GRE_IKEY
, htonl(ikey
));
3028 nla_nest_end(nlm
, infodata
);
3029 nla_nest_end(nlm
, linkinfo
);
3031 return system_rtnl_call(nlm
);
3040 static int system_add_vti_tunnel(const char *name
, const char *kind
,
3041 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3044 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3045 struct blob_attr
*cur
;
3048 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3052 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3053 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3055 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3061 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
3062 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3069 nla_put_u32(nlm
, IFLA_VTI_LINK
, link
);
3072 struct in6_addr in6buf
;
3073 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3074 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3078 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(in6buf
), &in6buf
);
3081 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3082 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3086 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(in6buf
), &in6buf
);
3090 struct in_addr inbuf
;
3092 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3093 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3097 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(inbuf
), &inbuf
);
3100 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3101 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3105 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(inbuf
), &inbuf
);
3110 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3111 struct blob_attr
*tb_data
[__VTI_DATA_ATTR_MAX
];
3112 uint32_t ikey
= 0, okey
= 0;
3114 blobmsg_parse(vti_data_attr_list
.params
, __VTI_DATA_ATTR_MAX
, tb_data
,
3115 blobmsg_data(cur
), blobmsg_len(cur
));
3117 if ((cur
= tb_data
[VTI_DATA_IKEY
])) {
3118 if ((ikey
= blobmsg_get_u32(cur
)))
3119 nla_put_u32(nlm
, IFLA_VTI_IKEY
, htonl(ikey
));
3122 if ((cur
= tb_data
[VTI_DATA_OKEY
])) {
3123 if ((okey
= blobmsg_get_u32(cur
)))
3124 nla_put_u32(nlm
, IFLA_VTI_OKEY
, htonl(okey
));
3128 nla_nest_end(nlm
, infodata
);
3129 nla_nest_end(nlm
, linkinfo
);
3131 return system_rtnl_call(nlm
);
3139 #ifdef IFLA_XFRM_MAX
3140 static int system_add_xfrm_tunnel(const char *name
, const char *kind
,
3141 const unsigned int link
, struct blob_attr
**tb
)
3144 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3145 struct blob_attr
*cur
;
3148 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3152 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3153 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3155 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3161 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
3162 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3169 nla_put_u32(nlm
, IFLA_XFRM_LINK
, link
);
3171 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3172 struct blob_attr
*tb_data
[__XFRM_DATA_ATTR_MAX
];
3175 blobmsg_parse(xfrm_data_attr_list
.params
, __XFRM_DATA_ATTR_MAX
, tb_data
,
3176 blobmsg_data(cur
), blobmsg_len(cur
));
3178 if ((cur
= tb_data
[XFRM_DATA_IF_ID
])) {
3179 if ((if_id
= blobmsg_get_u32(cur
)))
3180 nla_put_u32(nlm
, IFLA_XFRM_IF_ID
, if_id
);
3185 nla_nest_end(nlm
, infodata
);
3186 nla_nest_end(nlm
, linkinfo
);
3188 return system_rtnl_call(nlm
);
3196 #ifdef IFLA_VXLAN_MAX
3197 static void system_vxlan_map_bool_attr(struct nl_msg
*msg
, struct blob_attr
**tb_data
, int attrtype
, int vxlandatatype
, bool invert
) {
3198 struct blob_attr
*cur
;
3199 if ((cur
= tb_data
[vxlandatatype
])) {
3200 bool val
= blobmsg_get_bool(cur
);
3204 if ((attrtype
== IFLA_VXLAN_GBP
) && val
)
3205 nla_put_flag(msg
, attrtype
);
3207 nla_put_u8(msg
, attrtype
, val
);
3212 static int system_add_vxlan(const char *name
, const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3214 struct blob_attr
*tb_data
[__VXLAN_DATA_ATTR_MAX
];
3216 struct nlattr
*linkinfo
, *data
;
3217 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
3218 struct blob_attr
*cur
;
3221 if ((cur
= tb
[TUNNEL_ATTR_DATA
]))
3222 blobmsg_parse(vxlan_data_attr_list
.params
, __VXLAN_DATA_ATTR_MAX
, tb_data
,
3223 blobmsg_data(cur
), blobmsg_len(cur
));
3227 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
3232 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
3234 nla_put_string(msg
, IFLA_IFNAME
, name
);
3236 if ((cur
= tb_data
[VXLAN_DATA_ATTR_MACADDR
])) {
3237 struct ether_addr
*ea
= ether_aton(blobmsg_get_string(cur
));
3243 nla_put(msg
, IFLA_ADDRESS
, ETH_ALEN
, ea
);
3246 if ((cur
= tb
[TUNNEL_ATTR_MTU
])) {
3247 uint32_t mtu
= blobmsg_get_u32(cur
);
3248 nla_put_u32(msg
, IFLA_MTU
, mtu
);
3251 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
))) {
3256 nla_put_string(msg
, IFLA_INFO_KIND
, "vxlan");
3258 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
))) {
3264 nla_put_u32(msg
, IFLA_VXLAN_LINK
, link
);
3266 if ((cur
= tb_data
[VXLAN_DATA_ATTR_ID
])) {
3267 uint32_t id
= blobmsg_get_u32(cur
);
3268 if (id
>= (1u << 24) - 1) {
3273 nla_put_u32(msg
, IFLA_VXLAN_ID
, id
);
3277 struct in6_addr in6buf
;
3278 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3279 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3283 nla_put(msg
, IFLA_VXLAN_LOCAL6
, sizeof(in6buf
), &in6buf
);
3286 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3287 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3291 nla_put(msg
, IFLA_VXLAN_GROUP6
, sizeof(in6buf
), &in6buf
);
3294 struct in_addr inbuf
;
3296 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3297 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3301 nla_put(msg
, IFLA_VXLAN_LOCAL
, sizeof(inbuf
), &inbuf
);
3304 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3305 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3309 nla_put(msg
, IFLA_VXLAN_GROUP
, sizeof(inbuf
), &inbuf
);
3313 uint32_t port
= 4789;
3314 if ((cur
= tb_data
[VXLAN_DATA_ATTR_PORT
])) {
3315 port
= blobmsg_get_u32(cur
);
3316 if (port
< 1 || port
> 65535) {
3321 nla_put_u16(msg
, IFLA_VXLAN_PORT
, htons(port
));
3323 if ((cur
= tb_data
[VXLAN_DATA_ATTR_SRCPORTMIN
])) {
3324 struct ifla_vxlan_port_range srcports
= {0,0};
3326 uint32_t low
= blobmsg_get_u32(cur
);
3327 if (low
< 1 || low
> 65535 - 1) {
3332 srcports
.low
= htons((uint16_t) low
);
3333 srcports
.high
= htons((uint16_t) (low
+1));
3335 if ((cur
= tb_data
[VXLAN_DATA_ATTR_SRCPORTMAX
])) {
3336 uint32_t high
= blobmsg_get_u32(cur
);
3337 if (high
< 1 || high
> 65535) {
3343 srcports
.high
= htons((uint16_t) high
);
3346 nla_put(msg
, IFLA_VXLAN_PORT_RANGE
, sizeof(srcports
), &srcports
);
3349 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_CSUM
, VXLAN_DATA_ATTR_TXCSUM
, false);
3350 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_ZERO_CSUM6_RX
, VXLAN_DATA_ATTR_RXCSUM
, true);
3351 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_ZERO_CSUM6_TX
, VXLAN_DATA_ATTR_TXCSUM
, true);
3352 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_LEARNING
, VXLAN_DATA_ATTR_LEARNING
, false);
3353 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_RSC
, VXLAN_DATA_ATTR_RSC
, false);
3354 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_PROXY
, VXLAN_DATA_ATTR_PROXY
, false);
3355 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_L2MISS
, VXLAN_DATA_ATTR_L2MISS
, false);
3356 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_L3MISS
, VXLAN_DATA_ATTR_L3MISS
, false);
3357 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_GBP
, VXLAN_DATA_ATTR_GBP
, false);
3359 if ((cur
= tb_data
[VXLAN_DATA_ATTR_AGEING
])) {
3360 uint32_t ageing
= blobmsg_get_u32(cur
);
3361 nla_put_u32(msg
, IFLA_VXLAN_AGEING
, ageing
);
3364 if ((cur
= tb_data
[VXLAN_DATA_ATTR_LIMIT
])) {
3365 uint32_t maxaddress
= blobmsg_get_u32(cur
);
3366 nla_put_u32(msg
, IFLA_VXLAN_LIMIT
, maxaddress
);
3369 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3370 char *str
= blobmsg_get_string(cur
);
3373 if (strcmp(str
, "inherit")) {
3374 if (!system_tos_aton(str
, &tos
)) {
3380 nla_put_u8(msg
, IFLA_VXLAN_TOS
, tos
);
3383 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
3384 uint32_t ttl
= blobmsg_get_u32(cur
);
3385 if (ttl
< 1 || ttl
> 255) {
3390 nla_put_u8(msg
, IFLA_VXLAN_TTL
, ttl
);
3393 nla_nest_end(msg
, data
);
3394 nla_nest_end(msg
, linkinfo
);
3396 ret
= system_rtnl_call(msg
);
3398 D(SYSTEM
, "Error adding vxlan '%s': %d\n", name
, ret
);
3408 static int system_add_sit_tunnel(const char *name
, const unsigned int link
, struct blob_attr
**tb
)
3410 struct blob_attr
*cur
;
3413 if (system_add_proto_tunnel(name
, IPPROTO_IPV6
, link
, tb
) < 0)
3417 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3418 struct blob_attr
*tb_data
[__SIXRD_DATA_ATTR_MAX
];
3420 struct ip_tunnel_6rd p6
;
3422 blobmsg_parse(sixrd_data_attr_list
.params
, __SIXRD_DATA_ATTR_MAX
, tb_data
,
3423 blobmsg_data(cur
), blobmsg_len(cur
));
3425 memset(&p6
, 0, sizeof(p6
));
3427 if ((cur
= tb_data
[SIXRD_DATA_PREFIX
])) {
3428 if (!parse_ip_and_netmask(AF_INET6
, blobmsg_data(cur
),
3429 &p6
.prefix
, &mask
) || mask
> 128) {
3434 p6
.prefixlen
= mask
;
3437 if ((cur
= tb_data
[SIXRD_DATA_RELAY_PREFIX
])) {
3438 if (!parse_ip_and_netmask(AF_INET
, blobmsg_data(cur
),
3439 &p6
.relay_prefix
, &mask
) || mask
> 32) {
3444 p6
.relay_prefixlen
= mask
;
3447 if (tunnel_ioctl(name
, SIOCADD6RD
, &p6
) < 0) {
3457 __system_del_ip_tunnel(name
, tb
);
3461 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
, const unsigned int link
, struct blob_attr
**tb
)
3463 struct blob_attr
*cur
;
3465 struct ip_tunnel_parm p
= {
3474 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
]) &&
3475 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.saddr
) < 1)
3478 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
]) &&
3479 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.daddr
) < 1)
3482 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
3483 set_df
= blobmsg_get_bool(cur
);
3485 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3486 p
.iph
.ttl
= blobmsg_get_u32(cur
);
3488 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3489 char *str
= blobmsg_get_string(cur
);
3490 if (strcmp(str
, "inherit")) {
3493 if (!system_tos_aton(str
, &uval
))
3501 p
.iph
.frag_off
= set_df
? htons(IP_DF
) : 0;
3502 /* ttl !=0 and nopmtudisc are incompatible */
3503 if (p
.iph
.ttl
&& p
.iph
.frag_off
== 0)
3506 strncpy(p
.name
, name
, sizeof(p
.name
) - 1);
3508 switch (p
.iph
.protocol
) {
3510 return tunnel_ioctl("tunl0", SIOCADDTUNNEL
, &p
);
3512 return tunnel_ioctl("sit0", SIOCADDTUNNEL
, &p
);
3519 static int __system_del_ip_tunnel(const char *name
, struct blob_attr
**tb
)
3521 struct blob_attr
*cur
;
3524 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
3526 str
= blobmsg_data(cur
);
3528 if (!strcmp(str
, "greip") || !strcmp(str
, "gretapip") ||
3529 !strcmp(str
, "greip6") || !strcmp(str
, "gretapip6") ||
3530 !strcmp(str
, "vtiip") || !strcmp(str
, "vtiip6") ||
3531 !strcmp(str
, "vxlan") || !strcmp(str
, "vxlan6") ||
3532 !strcmp(str
, "xfrm"))
3533 return system_link_del(name
);
3535 return tunnel_ioctl(name
, SIOCDELTUNNEL
, NULL
);
3538 int system_del_ip_tunnel(const char *name
, struct blob_attr
*attr
)
3540 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
3542 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
3543 blob_data(attr
), blob_len(attr
));
3545 return __system_del_ip_tunnel(name
, tb
);
3548 int system_update_ipv6_mtu(struct device
*dev
, int mtu
)
3554 snprintf(buf
, sizeof(buf
), "/proc/sys/net/ipv6/conf/%s/mtu",
3557 fd
= open(buf
, O_RDWR
);
3562 ssize_t len
= read(fd
, buf
, sizeof(buf
) - 1);
3569 if (write(fd
, buf
, snprintf(buf
, sizeof(buf
), "%i", mtu
)) > 0)
3578 int system_add_ip_tunnel(const char *name
, struct blob_attr
*attr
)
3580 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
3581 struct blob_attr
*cur
;
3584 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
3585 blob_data(attr
), blob_len(attr
));
3587 __system_del_ip_tunnel(name
, tb
);
3589 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
3591 str
= blobmsg_data(cur
);
3593 unsigned int ttl
= 0;
3594 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
3595 ttl
= blobmsg_get_u32(cur
);
3600 unsigned int link
= 0;
3601 if ((cur
= tb
[TUNNEL_ATTR_LINK
])) {
3602 struct interface
*iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
3606 if (iface
->l3_dev
.dev
)
3607 link
= iface
->l3_dev
.dev
->ifindex
;
3610 if (!strcmp(str
, "sit"))
3611 return system_add_sit_tunnel(name
, link
, tb
);
3612 #ifdef IFLA_IPTUN_MAX
3613 else if (!strcmp(str
, "ipip6")) {
3614 return system_add_ip6_tunnel(name
, link
, tb
);
3615 } else if (!strcmp(str
, "greip")) {
3616 return system_add_gre_tunnel(name
, "gre", link
, tb
, false);
3617 } else if (!strcmp(str
, "gretapip")) {
3618 return system_add_gre_tunnel(name
, "gretap", link
, tb
, false);
3619 } else if (!strcmp(str
, "greip6")) {
3620 return system_add_gre_tunnel(name
, "ip6gre", link
, tb
, true);
3621 } else if (!strcmp(str
, "gretapip6")) {
3622 return system_add_gre_tunnel(name
, "ip6gretap", link
, tb
, true);
3624 } else if (!strcmp(str
, "vtiip")) {
3625 return system_add_vti_tunnel(name
, "vti", link
, tb
, false);
3626 } else if (!strcmp(str
, "vtiip6")) {
3627 return system_add_vti_tunnel(name
, "vti6", link
, tb
, true);
3629 #ifdef IFLA_XFRM_MAX
3630 } else if (!strcmp(str
, "xfrm")) {
3631 return system_add_xfrm_tunnel(name
, "xfrm", link
, tb
);
3633 #ifdef IFLA_VXLAN_MAX
3634 } else if(!strcmp(str
, "vxlan")) {
3635 return system_add_vxlan(name
, link
, tb
, false);
3636 } else if(!strcmp(str
, "vxlan6")) {
3637 return system_add_vxlan(name
, link
, tb
, true);
3640 } else if (!strcmp(str
, "ipip")) {
3641 return system_add_proto_tunnel(name
, IPPROTO_IPIP
, link
, tb
);