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
;
684 if (!strncmp(data
, "add@", 4) || !strncmp(data
, "move@", 5))
686 else if (!strncmp(data
, "remove@", 7))
691 skip
= strlen(data
) + 1;
694 for (cur
= data
+ skip
; cur
< end
; cur
+= skip
) {
695 skip
= strlen(cur
) + 1;
697 sep
= strchr(cur
, '=');
702 if (!strcmp(cur
, "INTERFACE"))
704 else if (!strcmp(cur
, "SUBSYSTEM")) {
706 if (strcmp(subsystem
, "net") != 0)
708 } else if (!strcmp(cur
, "DEVPATH_OLD")) {
709 interface_old
= strrchr(sep
+ 1, '/');
715 if (!subsystem
|| !interface
)
719 device_hotplug_event(interface_old
, false);
721 device_hotplug_event(interface
, add
);
725 handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
)
727 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
728 struct sockaddr_nl nla
;
729 unsigned char *buf
= NULL
;
732 socklen_t errlen
= sizeof(err
);
735 while ((size
= nl_recv(ev
->sock
, &nla
, &buf
, NULL
)) > 0) {
737 handle_hotplug_msg((char *) buf
, size
);
744 if (getsockopt(u
->fd
, SOL_SOCKET
, SO_ERROR
, (void *)&err
, &errlen
))
749 /* Increase rx buffer size on netlink socket */
751 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
762 uloop_fd_delete(&ev
->uloop
);
766 static int system_rtnl_call(struct nl_msg
*msg
)
770 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
776 return nl_wait_for_ack(sock_rtnl
);
779 int system_bridge_delbr(struct device
*bridge
)
781 return ioctl(sock_ioctl
, SIOCBRDELBR
, bridge
->ifname
);
784 static int system_bridge_if(const char *bridge
, struct device
*dev
, int cmd
, void *data
)
788 memset(&ifr
, 0, sizeof(ifr
));
790 ifr
.ifr_ifindex
= dev
->ifindex
;
793 strncpy(ifr
.ifr_name
, bridge
, sizeof(ifr
.ifr_name
) - 1);
794 return ioctl(sock_ioctl
, cmd
, &ifr
);
797 static bool system_is_bridge(const char *name
, char *buf
, int buflen
)
801 snprintf(buf
, buflen
, "/sys/devices/virtual/net/%s/bridge", name
);
802 if (stat(buf
, &st
) < 0)
808 static char *system_get_bridge(const char *name
, char *buf
, int buflen
)
814 snprintf(buf
, buflen
, "/sys/devices/virtual/net/*/brif/%s/bridge", name
);
815 if (glob(buf
, GLOB_NOSORT
, NULL
, &gl
) < 0)
819 len
= readlink(gl
.gl_pathv
[0], buf
, buflen
);
827 path
= strrchr(buf
, '/');
835 system_bridge_set_wireless(struct device
*bridge
, struct device
*dev
)
837 bool mcast_to_ucast
= dev
->wireless_ap
;
840 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
&&
841 !bridge
->settings
.multicast_to_unicast
)
842 mcast_to_ucast
= false;
844 if (!mcast_to_ucast
|| dev
->wireless_isolate
)
847 system_bridge_set_multicast_to_unicast(dev
, mcast_to_ucast
? "1" : "0");
848 system_bridge_set_hairpin_mode(dev
, hairpin
? "1" : "0");
851 int system_bridge_addif(struct device
*bridge
, struct device
*dev
)
860 oldbr
= system_get_bridge(dev
->ifname
, dev_buf
, sizeof(dev_buf
));
861 if (!oldbr
|| strcmp(oldbr
, bridge
->ifname
) != 0) {
862 ret
= system_bridge_if(bridge
->ifname
, dev
, SIOCBRADDIF
, NULL
);
864 D(SYSTEM
, "Failed to add device '%s' to bridge '%s' (tries=%d): %s\n",
865 dev
->ifname
, bridge
->ifname
, tries
, strerror(errno
));
871 system_bridge_set_wireless(bridge
, dev
);
873 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
874 snprintf(buf
, sizeof(buf
), "%u", dev
->settings
.multicast_router
);
875 system_bridge_set_multicast_router(dev
, buf
, false);
878 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
&&
879 dev
->settings
.multicast_fast_leave
)
880 system_bridge_set_multicast_fast_leave(dev
, "1");
882 if (dev
->settings
.flags
& DEV_OPT_LEARNING
&&
883 !dev
->settings
.learning
)
884 system_bridge_set_learning(dev
, "0");
886 if (dev
->settings
.flags
& DEV_OPT_UNICAST_FLOOD
&&
887 !dev
->settings
.unicast_flood
)
888 system_bridge_set_unicast_flood(dev
, "0");
890 if (dev
->settings
.flags
& DEV_OPT_ISOLATE
&&
891 dev
->settings
.isolate
)
892 system_bridge_set_isolated(dev
, "1");
897 int system_bridge_delif(struct device
*bridge
, struct device
*dev
)
899 return system_bridge_if(bridge
->ifname
, dev
, SIOCBRDELIF
, NULL
);
902 int system_bridge_vlan(const char *iface
, uint16_t vid
, bool add
, unsigned int vflags
)
904 struct ifinfomsg ifi
= { .ifi_family
= PF_BRIDGE
, };
905 struct bridge_vlan_info vinfo
= { .vid
= vid
, };
906 unsigned short flags
= 0;
907 struct nlattr
*afspec
;
911 ifi
.ifi_index
= if_nametoindex(iface
);
915 nlm
= nlmsg_alloc_simple(add
? RTM_SETLINK
: RTM_DELLINK
, NLM_F_REQUEST
);
919 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
921 if (vflags
& BRVLAN_F_SELF
)
922 flags
|= BRIDGE_FLAGS_SELF
;
924 if (vflags
& BRVLAN_F_PVID
)
925 vinfo
.flags
|= BRIDGE_VLAN_INFO_PVID
;
927 if (vflags
& BRVLAN_F_UNTAGGED
)
928 vinfo
.flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
930 afspec
= nla_nest_start(nlm
, IFLA_AF_SPEC
);
937 nla_put_u16(nlm
, IFLA_BRIDGE_FLAGS
, flags
);
939 nla_put(nlm
, IFLA_BRIDGE_VLAN_INFO
, sizeof(vinfo
), &vinfo
);
940 nla_nest_end(nlm
, afspec
);
942 return system_rtnl_call(nlm
);
949 int system_if_resolve(struct device
*dev
)
953 memset(&ifr
, 0, sizeof(ifr
));
954 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
955 if (!ioctl(sock_ioctl
, SIOCGIFINDEX
, &ifr
))
956 return ifr
.ifr_ifindex
;
961 static int system_if_flags(const char *ifname
, unsigned add
, unsigned rem
)
965 memset(&ifr
, 0, sizeof(ifr
));
966 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
967 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) < 0)
970 ifr
.ifr_flags
|= add
;
971 ifr
.ifr_flags
&= ~rem
;
972 return ioctl(sock_ioctl
, SIOCSIFFLAGS
, &ifr
);
984 static bool check_ifaddr(struct nlmsghdr
*hdr
, int ifindex
)
986 struct ifaddrmsg
*ifa
= NLMSG_DATA(hdr
);
988 return ifa
->ifa_index
== ifindex
;
991 static bool check_route(struct nlmsghdr
*hdr
, int ifindex
)
993 struct rtmsg
*r
= NLMSG_DATA(hdr
);
994 struct nlattr
*tb
[__RTA_MAX
];
996 if (r
->rtm_protocol
== RTPROT_KERNEL
&&
997 r
->rtm_family
== AF_INET6
)
1000 nlmsg_parse(hdr
, sizeof(struct rtmsg
), tb
, __RTA_MAX
- 1, NULL
);
1004 return *(int *)RTA_DATA(tb
[RTA_OIF
]) == ifindex
;
1007 static bool check_rule(struct nlmsghdr
*hdr
, int ifindex
)
1012 static int cb_clear_event(struct nl_msg
*msg
, void *arg
)
1014 struct clear_data
*clr
= arg
;
1015 struct nlmsghdr
*hdr
= nlmsg_hdr(msg
);
1016 bool (*cb
)(struct nlmsghdr
*, int ifindex
);
1022 if (hdr
->nlmsg_type
!= RTM_NEWADDR
)
1028 type
= RTM_DELROUTE
;
1029 if (hdr
->nlmsg_type
!= RTM_NEWROUTE
)
1036 if (hdr
->nlmsg_type
!= RTM_NEWRULE
)
1045 if (!cb(hdr
, clr
->dev
? clr
->dev
->ifindex
: 0))
1048 if (type
== RTM_DELRULE
)
1049 D(SYSTEM
, "Remove a rule\n");
1051 D(SYSTEM
, "Remove %s from device %s\n",
1052 type
== RTM_DELADDR
? "an address" : "a route",
1055 memcpy(nlmsg_hdr(clr
->msg
), hdr
, hdr
->nlmsg_len
);
1056 hdr
= nlmsg_hdr(clr
->msg
);
1057 hdr
->nlmsg_type
= type
;
1058 hdr
->nlmsg_flags
= NLM_F_REQUEST
;
1060 nl_socket_disable_auto_ack(sock_rtnl
);
1061 ret
= nl_send_auto_complete(sock_rtnl
, clr
->msg
);
1063 if (type
== RTM_DELRULE
)
1064 D(SYSTEM
, "Error deleting a rule: %d\n", ret
);
1066 D(SYSTEM
, "Error deleting %s from device '%s': %d\n",
1067 type
== RTM_DELADDR
? "an address" : "a route",
1068 clr
->dev
->ifname
, ret
);
1071 nl_socket_enable_auto_ack(sock_rtnl
);
1077 cb_finish_event(struct nl_msg
*msg
, void *arg
)
1085 error_handler(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1088 *pending
= err
->error
;
1093 system_if_clear_entries(struct device
*dev
, int type
, int af
)
1095 struct clear_data clr
;
1097 struct rtmsg rtm
= {
1099 .rtm_flags
= RTM_F_CLONED
,
1101 int flags
= NLM_F_DUMP
;
1110 clr
.size
= sizeof(struct rtgenmsg
);
1113 clr
.size
= sizeof(struct rtmsg
);
1119 cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1123 clr
.msg
= nlmsg_alloc_simple(type
, flags
);
1127 nlmsg_append(clr
.msg
, &rtm
, clr
.size
, 0);
1128 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_clear_event
, &clr
);
1129 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, cb_finish_event
, &pending
);
1130 nl_cb_err(cb
, NL_CB_CUSTOM
, error_handler
, &pending
);
1132 if (nl_send_auto_complete(sock_rtnl
, clr
.msg
) < 0)
1136 nl_recvmsgs(sock_rtnl
, cb
);
1139 nlmsg_free(clr
.msg
);
1145 * Clear bridge (membership) state and bring down device
1147 void system_if_clear_state(struct device
*dev
)
1149 static char buf
[256];
1151 device_set_ifindex(dev
, system_if_resolve(dev
));
1153 if (dev
->external
|| !dev
->ifindex
)
1156 system_if_flags(dev
->ifname
, 0, IFF_UP
);
1158 if (system_is_bridge(dev
->ifname
, buf
, sizeof(buf
))) {
1159 D(SYSTEM
, "Delete existing bridge named '%s'\n", dev
->ifname
);
1160 system_bridge_delbr(dev
);
1164 bridge
= system_get_bridge(dev
->ifname
, buf
, sizeof(buf
));
1166 D(SYSTEM
, "Remove device '%s' from bridge '%s'\n", dev
->ifname
, bridge
);
1167 system_bridge_if(bridge
, dev
, SIOCBRDELIF
, NULL
);
1170 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET
);
1171 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET
);
1172 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET6
);
1173 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET6
);
1174 system_if_clear_entries(dev
, RTM_GETNEIGH
, AF_INET
);
1175 system_if_clear_entries(dev
, RTM_GETNEIGH
, AF_INET6
);
1176 system_set_disable_ipv6(dev
, "0");
1179 static inline unsigned long
1180 sec_to_jiffies(int val
)
1182 return (unsigned long) val
* 100;
1185 static void system_bridge_conf_multicast_deps(struct device
*bridge
,
1186 struct bridge_config
*cfg
,
1192 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
||
1193 cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
||
1194 cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
1195 val
= cfg
->robustness
* cfg
->query_interval
+
1196 cfg
->query_response_interval
;
1198 snprintf(buf
, buf_len
, "%i", val
);
1199 system_bridge_set_membership_interval(bridge
, buf
);
1201 val
= cfg
->robustness
* cfg
->query_interval
+
1202 cfg
->query_response_interval
/ 2;
1204 snprintf(buf
, buf_len
, "%i", val
);
1205 system_bridge_set_other_querier_timeout(bridge
, buf
);
1208 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1209 val
= cfg
->query_interval
/ 4;
1211 snprintf(buf
, buf_len
, "%i", val
);
1212 system_bridge_set_startup_query_interval(bridge
, buf
);
1216 static void system_bridge_conf_multicast(struct device
*bridge
,
1217 struct bridge_config
*cfg
,
1221 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_snooping",
1222 bridge
->ifname
, cfg
->igmp_snoop
? "1" : "0");
1224 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier",
1225 bridge
->ifname
, cfg
->multicast_querier
? "1" : "0");
1227 snprintf(buf
, buf_len
, "%i", cfg
->hash_max
);
1228 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/hash_max",
1229 bridge
->ifname
, buf
);
1231 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
1232 snprintf(buf
, buf_len
, "%u", bridge
->settings
.multicast_router
);
1233 system_bridge_set_multicast_router(bridge
, buf
, true);
1236 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
) {
1237 snprintf(buf
, buf_len
, "%i", cfg
->robustness
);
1238 system_bridge_set_robustness(bridge
, buf
);
1241 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1242 snprintf(buf
, buf_len
, "%i", cfg
->query_interval
);
1243 system_bridge_set_query_interval(bridge
, buf
);
1246 if (cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
1247 snprintf(buf
, buf_len
, "%i", cfg
->query_response_interval
);
1248 system_bridge_set_query_response_interval(bridge
, buf
);
1251 if (cfg
->flags
& BRIDGE_OPT_LAST_MEMBER_INTERVAL
) {
1252 snprintf(buf
, buf_len
, "%i", cfg
->last_member_interval
);
1253 system_bridge_set_last_member_interval(bridge
, buf
);
1256 system_bridge_conf_multicast_deps(bridge
, cfg
, buf
, buf_len
);
1259 int system_bridge_addbr(struct device
*bridge
, struct bridge_config
*cfg
)
1263 if (ioctl(sock_ioctl
, SIOCBRADDBR
, bridge
->ifname
) < 0)
1266 system_bridge_set_stp_state(bridge
, cfg
->stp
? "1" : "0");
1268 snprintf(buf
, sizeof(buf
), "%lu", sec_to_jiffies(cfg
->forward_delay
));
1269 system_bridge_set_forward_delay(bridge
, buf
);
1271 system_bridge_conf_multicast(bridge
, cfg
, buf
, sizeof(buf
));
1272 system_bridge_set_vlan_filtering(bridge
, cfg
->vlan_filtering
? "1" : "0");
1274 snprintf(buf
, sizeof(buf
), "%d", cfg
->priority
);
1275 system_bridge_set_priority(bridge
, buf
);
1277 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
) {
1278 snprintf(buf
, sizeof(buf
), "%lu", sec_to_jiffies(cfg
->ageing_time
));
1279 system_bridge_set_ageing_time(bridge
, buf
);
1282 if (cfg
->flags
& BRIDGE_OPT_HELLO_TIME
) {
1283 snprintf(buf
, sizeof(buf
), "%lu", sec_to_jiffies(cfg
->hello_time
));
1284 system_bridge_set_hello_time(bridge
, buf
);
1287 if (cfg
->flags
& BRIDGE_OPT_MAX_AGE
) {
1288 snprintf(buf
, sizeof(buf
), "%lu", sec_to_jiffies(cfg
->max_age
));
1289 system_bridge_set_max_age(bridge
, buf
);
1295 int system_macvlan_add(struct device
*macvlan
, struct device
*dev
, struct macvlan_config
*cfg
)
1298 struct nlattr
*linkinfo
, *data
;
1299 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
1301 static const struct {
1303 enum macvlan_mode val
;
1305 { "private", MACVLAN_MODE_PRIVATE
},
1306 { "vepa", MACVLAN_MODE_VEPA
},
1307 { "bridge", MACVLAN_MODE_BRIDGE
},
1308 { "passthru", MACVLAN_MODE_PASSTHRU
},
1311 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1316 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1318 if (cfg
->flags
& MACVLAN_OPT_MACADDR
)
1319 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1320 nla_put_string(msg
, IFLA_IFNAME
, macvlan
->ifname
);
1321 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1323 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1324 goto nla_put_failure
;
1326 nla_put_string(msg
, IFLA_INFO_KIND
, "macvlan");
1328 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1329 goto nla_put_failure
;
1332 for (i
= 0; i
< ARRAY_SIZE(modes
); i
++) {
1333 if (strcmp(cfg
->mode
, modes
[i
].name
) != 0)
1336 nla_put_u32(msg
, IFLA_MACVLAN_MODE
, modes
[i
].val
);
1341 nla_nest_end(msg
, data
);
1342 nla_nest_end(msg
, linkinfo
);
1344 rv
= system_rtnl_call(msg
);
1346 D(SYSTEM
, "Error adding macvlan '%s' over '%s': %d\n", macvlan
->ifname
, dev
->ifname
, rv
);
1355 int system_link_netns_move(struct device
*dev
, int netns_fd
, const char *target_ifname
)
1358 struct ifinfomsg iim
= {
1359 .ifi_family
= AF_UNSPEC
,
1365 iim
.ifi_index
= system_if_resolve(dev
);
1366 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
);
1371 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1373 nla_put_string(msg
, IFLA_IFNAME
, target_ifname
);
1375 nla_put_u32(msg
, IFLA_NET_NS_FD
, netns_fd
);
1376 return system_rtnl_call(msg
);
1379 static int system_link_del(const char *ifname
)
1382 struct ifinfomsg iim
= {
1383 .ifi_family
= AF_UNSPEC
,
1387 msg
= nlmsg_alloc_simple(RTM_DELLINK
, NLM_F_REQUEST
);
1392 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1393 nla_put_string(msg
, IFLA_IFNAME
, ifname
);
1394 return system_rtnl_call(msg
);
1397 int system_macvlan_del(struct device
*macvlan
)
1399 return system_link_del(macvlan
->ifname
);
1402 int system_netns_open(const pid_t target_ns
)
1404 char pid_net_path
[PATH_MAX
];
1406 snprintf(pid_net_path
, sizeof(pid_net_path
), "/proc/%u/ns/net", target_ns
);
1408 return open(pid_net_path
, O_RDONLY
);
1411 int system_netns_set(int netns_fd
)
1413 return setns(netns_fd
, CLONE_NEWNET
);
1416 int system_veth_add(struct device
*veth
, struct veth_config
*cfg
)
1419 struct ifinfomsg empty_iim
= {};
1420 struct nlattr
*linkinfo
, *data
, *veth_info
;
1423 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1428 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1430 if (cfg
->flags
& VETH_OPT_MACADDR
)
1431 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1432 nla_put_string(msg
, IFLA_IFNAME
, veth
->ifname
);
1434 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1435 goto nla_put_failure
;
1437 nla_put_string(msg
, IFLA_INFO_KIND
, "veth");
1439 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1440 goto nla_put_failure
;
1442 if (!(veth_info
= nla_nest_start(msg
, VETH_INFO_PEER
)))
1443 goto nla_put_failure
;
1445 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1447 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1448 nla_put_string(msg
, IFLA_IFNAME
, cfg
->peer_name
);
1449 if (cfg
->flags
& VETH_OPT_PEER_MACADDR
)
1450 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->peer_macaddr
), cfg
->peer_macaddr
);
1452 nla_nest_end(msg
, veth_info
);
1453 nla_nest_end(msg
, data
);
1454 nla_nest_end(msg
, linkinfo
);
1456 rv
= system_rtnl_call(msg
);
1458 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1459 D(SYSTEM
, "Error adding veth '%s' with peer '%s': %d\n", veth
->ifname
, cfg
->peer_name
, rv
);
1461 D(SYSTEM
, "Error adding veth '%s': %d\n", veth
->ifname
, rv
);
1471 int system_veth_del(struct device
*veth
)
1473 return system_link_del(veth
->ifname
);
1476 static int system_vlan(struct device
*dev
, int id
)
1478 struct vlan_ioctl_args ifr
= {
1479 .cmd
= SET_VLAN_NAME_TYPE_CMD
,
1480 .u
.name_type
= VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
,
1483 if (ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
) < 0)
1487 ifr
.cmd
= DEL_VLAN_CMD
;
1490 ifr
.cmd
= ADD_VLAN_CMD
;
1493 strncpy(ifr
.device1
, dev
->ifname
, sizeof(ifr
.device1
));
1494 return ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
1497 int system_vlan_add(struct device
*dev
, int id
)
1499 return system_vlan(dev
, id
);
1502 int system_vlan_del(struct device
*dev
)
1504 return system_vlan(dev
, -1);
1507 int system_vlandev_add(struct device
*vlandev
, struct device
*dev
, struct vlandev_config
*cfg
)
1510 struct nlattr
*linkinfo
, *data
, *qos
;
1511 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
};
1512 struct vlan_qos_mapping
*elem
;
1513 struct ifla_vlan_qos_mapping nl_qos_map
;
1516 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1521 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1522 nla_put_string(msg
, IFLA_IFNAME
, vlandev
->ifname
);
1523 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1525 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1526 goto nla_put_failure
;
1528 nla_put_string(msg
, IFLA_INFO_KIND
, "vlan");
1530 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1531 goto nla_put_failure
;
1533 nla_put_u16(msg
, IFLA_VLAN_ID
, cfg
->vid
);
1535 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
1536 nla_put_u16(msg
, IFLA_VLAN_PROTOCOL
, htons(cfg
->proto
));
1538 if(cfg
->proto
== VLAN_PROTO_8021AD
)
1539 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
);
1542 if (!(qos
= nla_nest_start(msg
, IFLA_VLAN_INGRESS_QOS
)))
1543 goto nla_put_failure
;
1545 vlist_simple_for_each_element(&cfg
->ingress_qos_mapping_list
, elem
, node
) {
1546 nl_qos_map
.from
= elem
->from
;
1547 nl_qos_map
.to
= elem
->to
;
1548 nla_put(msg
, IFLA_VLAN_QOS_MAPPING
, sizeof(nl_qos_map
), &nl_qos_map
);
1550 nla_nest_end(msg
, qos
);
1552 if (!(qos
= nla_nest_start(msg
, IFLA_VLAN_EGRESS_QOS
)))
1553 goto nla_put_failure
;
1555 vlist_simple_for_each_element(&cfg
->egress_qos_mapping_list
, elem
, node
) {
1556 nl_qos_map
.from
= elem
->from
;
1557 nl_qos_map
.to
= elem
->to
;
1558 nla_put(msg
, IFLA_VLAN_QOS_MAPPING
, sizeof(nl_qos_map
), &nl_qos_map
);
1560 nla_nest_end(msg
, qos
);
1562 nla_nest_end(msg
, data
);
1563 nla_nest_end(msg
, linkinfo
);
1565 rv
= system_rtnl_call(msg
);
1567 D(SYSTEM
, "Error adding vlandev '%s' over '%s': %d\n", vlandev
->ifname
, dev
->ifname
, rv
);
1576 int system_vlandev_del(struct device
*vlandev
)
1578 return system_link_del(vlandev
->ifname
);
1582 system_set_ethtool_settings(struct device
*dev
, struct device_settings
*s
)
1584 struct ethtool_cmd ecmd
= {
1585 .cmd
= ETHTOOL_GSET
,
1587 struct ifreq ifr
= {
1588 .ifr_data
= (caddr_t
)&ecmd
,
1590 static const struct {
1595 { 10, ETHTOOL_LINK_MODE_10baseT_Half_BIT
, ETHTOOL_LINK_MODE_10baseT_Full_BIT
},
1596 { 100, ETHTOOL_LINK_MODE_100baseT_Half_BIT
, ETHTOOL_LINK_MODE_100baseT_Full_BIT
},
1597 { 1000, ETHTOOL_LINK_MODE_1000baseT_Half_BIT
, ETHTOOL_LINK_MODE_1000baseT_Full_BIT
},
1602 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1604 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0)
1607 adv
= ecmd
.supported
;
1608 for (i
= 0; i
< ARRAY_SIZE(speed_mask
); i
++) {
1609 if (s
->flags
& DEV_OPT_DUPLEX
) {
1610 int bit
= s
->duplex
? speed_mask
[i
].bit_half
: speed_mask
[i
].bit_full
;
1614 if (!(s
->flags
& DEV_OPT_SPEED
) ||
1615 s
->speed
== speed_mask
[i
].speed
)
1618 adv
&= ~(1 << speed_mask
[i
].bit_full
);
1619 adv
&= ~(1 << speed_mask
[i
].bit_half
);
1623 if (ecmd
.autoneg
&& ecmd
.advertising
== adv
)
1627 ecmd
.advertising
= adv
;
1628 ecmd
.cmd
= ETHTOOL_SSET
;
1629 ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
);
1633 system_if_get_settings(struct device
*dev
, struct device_settings
*s
)
1638 memset(&ifr
, 0, sizeof(ifr
));
1639 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1641 if (ioctl(sock_ioctl
, SIOCGIFMTU
, &ifr
) == 0) {
1642 s
->mtu
= ifr
.ifr_mtu
;
1643 s
->flags
|= DEV_OPT_MTU
;
1646 s
->mtu6
= system_update_ipv6_mtu(dev
, 0);
1648 s
->flags
|= DEV_OPT_MTU6
;
1650 if (ioctl(sock_ioctl
, SIOCGIFTXQLEN
, &ifr
) == 0) {
1651 s
->txqueuelen
= ifr
.ifr_qlen
;
1652 s
->flags
|= DEV_OPT_TXQUEUELEN
;
1655 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0) {
1656 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
1657 s
->flags
|= DEV_OPT_MACADDR
;
1660 if (!system_get_disable_ipv6(dev
, buf
, sizeof(buf
))) {
1661 s
->ipv6
= !strtoul(buf
, NULL
, 0);
1662 s
->flags
|= DEV_OPT_IPV6
;
1665 if (!system_get_ip6segmentrouting(dev
, buf
, sizeof(buf
))) {
1666 s
->ip6segmentrouting
= strtoul(buf
, NULL
, 0);
1667 s
->flags
|= DEV_OPT_IP6SEGMENTROUTING
;
1670 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) == 0) {
1671 s
->promisc
= ifr
.ifr_flags
& IFF_PROMISC
;
1672 s
->flags
|= DEV_OPT_PROMISC
;
1674 s
->multicast
= ifr
.ifr_flags
& IFF_MULTICAST
;
1675 s
->flags
|= DEV_OPT_MULTICAST
;
1678 if (!system_get_rpfilter(dev
, buf
, sizeof(buf
))) {
1679 s
->rpfilter
= strtoul(buf
, NULL
, 0);
1680 s
->flags
|= DEV_OPT_RPFILTER
;
1683 if (!system_get_acceptlocal(dev
, buf
, sizeof(buf
))) {
1684 s
->acceptlocal
= strtoul(buf
, NULL
, 0);
1685 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
1688 if (!system_get_igmpversion(dev
, buf
, sizeof(buf
))) {
1689 s
->igmpversion
= strtoul(buf
, NULL
, 0);
1690 s
->flags
|= DEV_OPT_IGMPVERSION
;
1693 if (!system_get_mldversion(dev
, buf
, sizeof(buf
))) {
1694 s
->mldversion
= strtoul(buf
, NULL
, 0);
1695 s
->flags
|= DEV_OPT_MLDVERSION
;
1698 if (!system_get_neigh4reachabletime(dev
, buf
, sizeof(buf
))) {
1699 s
->neigh4reachabletime
= strtoul(buf
, NULL
, 0);
1700 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1703 if (!system_get_neigh6reachabletime(dev
, buf
, sizeof(buf
))) {
1704 s
->neigh6reachabletime
= strtoul(buf
, NULL
, 0);
1705 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1708 if (!system_get_neigh4locktime(dev
, buf
, sizeof(buf
))) {
1709 s
->neigh4locktime
= strtol(buf
, NULL
, 0);
1710 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
1713 if (!system_get_neigh4gcstaletime(dev
, buf
, sizeof(buf
))) {
1714 s
->neigh4gcstaletime
= strtoul(buf
, NULL
, 0);
1715 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1718 if (!system_get_neigh6gcstaletime(dev
, buf
, sizeof(buf
))) {
1719 s
->neigh6gcstaletime
= strtoul(buf
, NULL
, 0);
1720 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1723 if (!system_get_dadtransmits(dev
, buf
, sizeof(buf
))) {
1724 s
->dadtransmits
= strtoul(buf
, NULL
, 0);
1725 s
->flags
|= DEV_OPT_DADTRANSMITS
;
1728 if (!system_get_sendredirects(dev
, buf
, sizeof(buf
))) {
1729 s
->sendredirects
= strtoul(buf
, NULL
, 0);
1730 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
1733 if (!system_get_drop_v4_unicast_in_l2_multicast(dev
, buf
, sizeof(buf
))) {
1734 s
->drop_v4_unicast_in_l2_multicast
= strtoul(buf
, NULL
, 0);
1735 s
->flags
|= DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
;
1738 if (!system_get_drop_v6_unicast_in_l2_multicast(dev
, buf
, sizeof(buf
))) {
1739 s
->drop_v6_unicast_in_l2_multicast
= strtoul(buf
, NULL
, 0);
1740 s
->flags
|= DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
;
1743 if (!system_get_drop_gratuitous_arp(dev
, buf
, sizeof(buf
))) {
1744 s
->drop_gratuitous_arp
= strtoul(buf
, NULL
, 0);
1745 s
->flags
|= DEV_OPT_DROP_GRATUITOUS_ARP
;
1748 if (!system_get_drop_unsolicited_na(dev
, buf
, sizeof(buf
))) {
1749 s
->drop_unsolicited_na
= strtoul(buf
, NULL
, 0);
1750 s
->flags
|= DEV_OPT_DROP_UNSOLICITED_NA
;
1753 if (!system_get_arp_accept(dev
, buf
, sizeof(buf
))) {
1754 s
->arp_accept
= strtoul(buf
, NULL
, 0);
1755 s
->flags
|= DEV_OPT_ARP_ACCEPT
;
1760 system_if_apply_settings(struct device
*dev
, struct device_settings
*s
, uint64_t apply_mask
)
1765 apply_mask
&= s
->flags
;
1767 memset(&ifr
, 0, sizeof(ifr
));
1768 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1769 if (apply_mask
& DEV_OPT_MTU
) {
1770 ifr
.ifr_mtu
= s
->mtu
;
1771 if (ioctl(sock_ioctl
, SIOCSIFMTU
, &ifr
) < 0)
1772 s
->flags
&= ~DEV_OPT_MTU
;
1774 if (apply_mask
& DEV_OPT_MTU6
) {
1775 system_update_ipv6_mtu(dev
, s
->mtu6
);
1777 if (apply_mask
& DEV_OPT_TXQUEUELEN
) {
1778 ifr
.ifr_qlen
= s
->txqueuelen
;
1779 if (ioctl(sock_ioctl
, SIOCSIFTXQLEN
, &ifr
) < 0)
1780 s
->flags
&= ~DEV_OPT_TXQUEUELEN
;
1782 if ((apply_mask
& (DEV_OPT_MACADDR
| DEV_OPT_DEFAULT_MACADDR
)) && !dev
->external
) {
1783 ifr
.ifr_hwaddr
.sa_family
= ARPHRD_ETHER
;
1784 memcpy(&ifr
.ifr_hwaddr
.sa_data
, s
->macaddr
, sizeof(s
->macaddr
));
1785 if (ioctl(sock_ioctl
, SIOCSIFHWADDR
, &ifr
) < 0)
1786 s
->flags
&= ~DEV_OPT_MACADDR
;
1788 if (apply_mask
& DEV_OPT_IPV6
)
1789 system_set_disable_ipv6(dev
, s
->ipv6
? "0" : "1");
1790 if (s
->flags
& DEV_OPT_IP6SEGMENTROUTING
& apply_mask
) {
1791 struct device dummy
= {
1794 bool ip6segmentrouting
= device_check_ip6segmentrouting();
1796 system_set_ip6segmentrouting(dev
, s
->ip6segmentrouting
? "1" : "0");
1797 system_set_ip6segmentrouting(&dummy
, ip6segmentrouting
? "1" : "0");
1799 if (apply_mask
& DEV_OPT_PROMISC
) {
1800 if (system_if_flags(dev
->ifname
, s
->promisc
? IFF_PROMISC
: 0,
1801 !s
->promisc
? IFF_PROMISC
: 0) < 0)
1802 s
->flags
&= ~DEV_OPT_PROMISC
;
1804 if (apply_mask
& DEV_OPT_RPFILTER
) {
1805 snprintf(buf
, sizeof(buf
), "%u", s
->rpfilter
);
1806 system_set_rpfilter(dev
, buf
);
1808 if (apply_mask
& DEV_OPT_ACCEPTLOCAL
)
1809 system_set_acceptlocal(dev
, s
->acceptlocal
? "1" : "0");
1810 if (apply_mask
& DEV_OPT_IGMPVERSION
) {
1811 snprintf(buf
, sizeof(buf
), "%u", s
->igmpversion
);
1812 system_set_igmpversion(dev
, buf
);
1814 if (apply_mask
& DEV_OPT_MLDVERSION
) {
1815 snprintf(buf
, sizeof(buf
), "%u", s
->mldversion
);
1816 system_set_mldversion(dev
, buf
);
1818 if (apply_mask
& DEV_OPT_NEIGHREACHABLETIME
) {
1819 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4reachabletime
);
1820 system_set_neigh4reachabletime(dev
, buf
);
1821 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6reachabletime
);
1822 system_set_neigh6reachabletime(dev
, buf
);
1824 if (apply_mask
& DEV_OPT_NEIGHLOCKTIME
) {
1825 snprintf(buf
, sizeof(buf
), "%d", s
->neigh4locktime
);
1826 system_set_neigh4locktime(dev
, buf
);
1828 if (apply_mask
& DEV_OPT_NEIGHGCSTALETIME
) {
1829 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4gcstaletime
);
1830 system_set_neigh4gcstaletime(dev
, buf
);
1831 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6gcstaletime
);
1832 system_set_neigh6gcstaletime(dev
, buf
);
1834 if (apply_mask
& DEV_OPT_DADTRANSMITS
) {
1835 snprintf(buf
, sizeof(buf
), "%u", s
->dadtransmits
);
1836 system_set_dadtransmits(dev
, buf
);
1838 if (apply_mask
& DEV_OPT_MULTICAST
) {
1839 if (system_if_flags(dev
->ifname
, s
->multicast
? IFF_MULTICAST
: 0,
1840 !s
->multicast
? IFF_MULTICAST
: 0) < 0)
1841 s
->flags
&= ~DEV_OPT_MULTICAST
;
1843 if (apply_mask
& DEV_OPT_SENDREDIRECTS
)
1844 system_set_sendredirects(dev
, s
->sendredirects
? "1" : "0");
1845 if (apply_mask
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
)
1846 system_set_drop_v4_unicast_in_l2_multicast(dev
, s
->drop_v4_unicast_in_l2_multicast
? "1" : "0");
1847 if (apply_mask
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
)
1848 system_set_drop_v6_unicast_in_l2_multicast(dev
, s
->drop_v6_unicast_in_l2_multicast
? "1" : "0");
1849 if (apply_mask
& DEV_OPT_DROP_GRATUITOUS_ARP
)
1850 system_set_drop_gratuitous_arp(dev
, s
->drop_gratuitous_arp
? "1" : "0");
1851 if (apply_mask
& DEV_OPT_DROP_UNSOLICITED_NA
)
1852 system_set_drop_unsolicited_na(dev
, s
->drop_unsolicited_na
? "1" : "0");
1853 if (apply_mask
& DEV_OPT_ARP_ACCEPT
)
1854 system_set_arp_accept(dev
, s
->arp_accept
? "1" : "0");
1855 system_set_ethtool_settings(dev
, s
);
1858 int system_if_up(struct device
*dev
)
1860 return system_if_flags(dev
->ifname
, IFF_UP
, 0);
1863 int system_if_down(struct device
*dev
)
1865 return system_if_flags(dev
->ifname
, 0, IFF_UP
);
1868 struct if_check_data
{
1874 #ifndef IFF_LOWER_UP
1875 #define IFF_LOWER_UP 0x10000
1878 static int cb_if_check_valid(struct nl_msg
*msg
, void *arg
)
1880 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
1881 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
1882 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1884 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
1887 if (chk
->dev
->type
== &simple_device_type
)
1888 device_set_present(chk
->dev
, ifi
->ifi_index
> 0 ? true : false);
1889 device_set_link(chk
->dev
, ifi
->ifi_flags
& IFF_LOWER_UP
? true : false);
1894 static int cb_if_check_ack(struct nl_msg
*msg
, void *arg
)
1896 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1901 static int cb_if_check_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1903 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1905 if (chk
->dev
->type
== &simple_device_type
)
1906 device_set_present(chk
->dev
, false);
1907 device_set_link(chk
->dev
, false);
1908 chk
->pending
= err
->error
;
1913 struct bridge_vlan_check_data
{
1914 struct device
*check_dev
;
1920 static void bridge_vlan_check_port(struct bridge_vlan_check_data
*data
,
1921 struct bridge_vlan_port
*port
,
1922 struct bridge_vlan_info
*vinfo
)
1924 uint16_t flags
= 0, diff
, mask
;
1926 if (port
->flags
& BRVLAN_F_PVID
)
1927 flags
|= BRIDGE_VLAN_INFO_PVID
;
1928 if (port
->flags
& BRVLAN_F_UNTAGGED
)
1929 flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
1931 diff
= vinfo
->flags
^ flags
;
1932 mask
= BRVLAN_F_UNTAGGED
| (flags
& BRIDGE_VLAN_INFO_PVID
);
1935 data
->pending
= false;
1941 static void bridge_vlan_check_attr(struct bridge_vlan_check_data
*data
,
1942 struct rtattr
*attr
)
1944 struct bridge_vlan_hotplug_port
*port
;
1945 struct bridge_vlan_info
*vinfo
;
1946 struct bridge_vlan
*vlan
;
1948 int rem
= RTA_PAYLOAD(attr
);
1951 for (cur
= RTA_DATA(attr
); RTA_OK(cur
, rem
); cur
= RTA_NEXT(cur
, rem
)) {
1952 if (cur
->rta_type
!= IFLA_BRIDGE_VLAN_INFO
)
1955 vinfo
= RTA_DATA(cur
);
1956 vlan
= vlist_find(&data
->check_dev
->vlans
, &vinfo
->vid
, vlan
, node
);
1959 data
->pending
= false;
1963 for (i
= 0; i
< vlan
->n_ports
; i
++)
1964 if (!vlan
->ports
[i
].check
)
1965 bridge_vlan_check_port(data
, &vlan
->ports
[i
], vinfo
);
1967 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
)
1968 if (!port
->port
.check
)
1969 bridge_vlan_check_port(data
, &port
->port
, vinfo
);
1973 static int bridge_vlan_check_cb(struct nl_msg
*msg
, void *arg
)
1975 struct bridge_vlan_check_data
*data
= arg
;
1976 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
1977 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
1978 struct rtattr
*attr
;
1981 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
1984 if (ifi
->ifi_family
!= AF_BRIDGE
)
1987 if (ifi
->ifi_index
!= data
->ifindex
)
1990 attr
= IFLA_RTA(ifi
);
1991 rem
= nh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*ifi
));
1992 while (RTA_OK(attr
, rem
)) {
1993 if (attr
->rta_type
== IFLA_AF_SPEC
)
1994 bridge_vlan_check_attr(data
, attr
);
1996 attr
= RTA_NEXT(attr
, rem
);
2002 static int bridge_vlan_ack_cb(struct nl_msg
*msg
, void *arg
)
2004 struct bridge_vlan_check_data
*data
= arg
;
2005 data
->pending
= false;
2009 static int bridge_vlan_error_cb(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
2011 struct bridge_vlan_check_data
*data
= arg
;
2012 data
->pending
= false;
2016 int system_bridge_vlan_check(struct device
*dev
, char *ifname
)
2018 struct bridge_vlan_check_data data
= {
2020 .ifindex
= if_nametoindex(ifname
),
2024 static struct ifinfomsg ifi
= {
2025 .ifi_family
= AF_BRIDGE
2027 static struct rtattr ext_req
= {
2028 .rta_type
= IFLA_EXT_MASK
,
2029 .rta_len
= RTA_LENGTH(sizeof(uint32_t)),
2031 uint32_t filter
= RTEXT_FILTER_BRVLAN
;
2032 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
2033 struct bridge_vlan
*vlan
;
2040 msg
= nlmsg_alloc_simple(RTM_GETLINK
, NLM_F_DUMP
);
2042 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
2043 nlmsg_append(msg
, &ext_req
, sizeof(ext_req
), NLMSG_ALIGNTO
) ||
2044 nlmsg_append(msg
, &filter
, sizeof(filter
), 0))
2047 vlist_for_each_element(&dev
->vlans
, vlan
, node
) {
2048 struct bridge_vlan_hotplug_port
*port
;
2050 for (i
= 0; i
< vlan
->n_ports
; i
++) {
2051 if (!strcmp(vlan
->ports
[i
].ifname
, ifname
))
2052 vlan
->ports
[i
].check
= 0;
2054 vlan
->ports
[i
].check
= -1;
2057 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
2058 if (!strcmp(port
->port
.ifname
, ifname
))
2059 port
->port
.check
= 0;
2061 port
->port
.check
= -1;
2065 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, bridge_vlan_check_cb
, &data
);
2066 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, bridge_vlan_ack_cb
, &data
);
2067 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, bridge_vlan_ack_cb
, &data
);
2068 nl_cb_err(cb
, NL_CB_CUSTOM
, bridge_vlan_error_cb
, &data
);
2070 if (nl_send_auto_complete(sock_rtnl
, msg
) < 0)
2074 while (data
.pending
)
2075 nl_recvmsgs(sock_rtnl
, cb
);
2077 vlist_for_each_element(&dev
->vlans
, vlan
, node
) {
2078 struct bridge_vlan_hotplug_port
*port
;
2080 for (i
= 0; i
< vlan
->n_ports
; i
++) {
2081 if (!vlan
->ports
[i
].check
) {
2087 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
2088 if (!port
->port
.check
) {
2104 int system_if_check(struct device
*dev
)
2106 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
2108 struct ifinfomsg ifi
= {
2109 .ifi_family
= AF_UNSPEC
,
2112 struct if_check_data chk
= {
2121 msg
= nlmsg_alloc_simple(RTM_GETLINK
, 0);
2125 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
2126 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
2129 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_check_valid
, &chk
);
2130 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_check_ack
, &chk
);
2131 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_check_error
, &chk
);
2133 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
2137 while (chk
.pending
> 0)
2138 nl_recvmsgs(sock_rtnl
, cb
);
2150 system_if_get_parent(struct device
*dev
)
2152 char buf
[64], *devname
;
2153 int ifindex
, iflink
, len
;
2156 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/iflink", dev
->ifname
);
2157 f
= fopen(buf
, "r");
2161 len
= fread(buf
, 1, sizeof(buf
) - 1, f
);
2168 iflink
= strtoul(buf
, NULL
, 0);
2169 ifindex
= system_if_resolve(dev
);
2170 if (!iflink
|| iflink
== ifindex
)
2173 devname
= if_indextoname(iflink
, buf
);
2177 return device_get(devname
, true);
2181 read_string_file(int dir_fd
, const char *file
, char *buf
, int len
)
2187 fd
= openat(dir_fd
, file
, O_RDONLY
);
2192 len
= read(fd
, buf
, len
- 1);
2196 } else if (len
> 0) {
2199 c
= strchr(buf
, '\n');
2212 read_uint64_file(int dir_fd
, const char *file
, uint64_t *val
)
2217 ret
= read_string_file(dir_fd
, file
, buf
, sizeof(buf
));
2219 *val
= strtoull(buf
, NULL
, 0);
2224 /* Assume advertised flags == supported flags */
2225 static const struct {
2228 } ethtool_link_modes
[] = {
2229 { ADVERTISED_10baseT_Half
, "10baseT-H" },
2230 { ADVERTISED_10baseT_Full
, "10baseT-F" },
2231 { ADVERTISED_100baseT_Half
, "100baseT-H" },
2232 { ADVERTISED_100baseT_Full
, "100baseT-F" },
2233 { ADVERTISED_1000baseT_Half
, "1000baseT-H" },
2234 { ADVERTISED_1000baseT_Full
, "1000baseT-F" },
2235 { ADVERTISED_1000baseKX_Full
, "1000baseKX-F" },
2236 { ADVERTISED_2500baseX_Full
, "2500baseX-F" },
2237 { ADVERTISED_10000baseT_Full
, "10000baseT-F" },
2238 { ADVERTISED_10000baseKX4_Full
, "10000baseKX4-F" },
2239 { ADVERTISED_10000baseKR_Full
, "10000baseKR-F" },
2240 { ADVERTISED_20000baseMLD2_Full
, "20000baseMLD2-F" },
2241 { ADVERTISED_20000baseKR2_Full
, "20000baseKR2-F" },
2242 { ADVERTISED_40000baseKR4_Full
, "40000baseKR4-F" },
2243 { ADVERTISED_40000baseCR4_Full
, "40000baseCR4-F" },
2244 { ADVERTISED_40000baseSR4_Full
, "40000baseSR4-F" },
2245 { ADVERTISED_40000baseLR4_Full
, "40000baseLR4-F" },
2246 #ifdef ADVERTISED_56000baseKR4_Full
2247 { ADVERTISED_56000baseKR4_Full
, "56000baseKR4-F" },
2248 { ADVERTISED_56000baseCR4_Full
, "56000baseCR4-F" },
2249 { ADVERTISED_56000baseSR4_Full
, "56000baseSR4-F" },
2250 { ADVERTISED_56000baseLR4_Full
, "56000baseLR4-F" },
2254 static void system_add_link_modes(struct blob_buf
*b
, __u32 mask
)
2257 for (i
= 0; i
< ARRAY_SIZE(ethtool_link_modes
); i
++) {
2258 if (mask
& ethtool_link_modes
[i
].mask
)
2259 blobmsg_add_string(b
, NULL
, ethtool_link_modes
[i
].name
);
2264 system_if_force_external(const char *ifname
)
2269 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/phy80211", ifname
);
2270 return stat(buf
, &s
) == 0;
2274 system_if_dump_info(struct device
*dev
, struct blob_buf
*b
)
2276 struct ethtool_cmd ecmd
;
2281 memset(&ecmd
, 0, sizeof(ecmd
));
2282 memset(&ifr
, 0, sizeof(ifr
));
2283 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2284 ifr
.ifr_data
= (caddr_t
) &ecmd
;
2285 ecmd
.cmd
= ETHTOOL_GSET
;
2287 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) == 0) {
2288 c
= blobmsg_open_array(b
, "link-advertising");
2289 system_add_link_modes(b
, ecmd
.advertising
);
2290 blobmsg_close_array(b
, c
);
2292 c
= blobmsg_open_array(b
, "link-partner-advertising");
2293 system_add_link_modes(b
, ecmd
.lp_advertising
);
2294 blobmsg_close_array(b
, c
);
2296 c
= blobmsg_open_array(b
, "link-supported");
2297 system_add_link_modes(b
, ecmd
.supported
);
2298 blobmsg_close_array(b
, c
);
2300 s
= blobmsg_alloc_string_buffer(b
, "speed", 8);
2301 snprintf(s
, 8, "%d%c", ethtool_cmd_speed(&ecmd
),
2302 ecmd
.duplex
== DUPLEX_HALF
? 'H' : 'F');
2303 blobmsg_add_string_buffer(b
);
2305 blobmsg_add_u8(b
, "autoneg", !!ecmd
.autoneg
);
2312 system_if_dump_stats(struct device
*dev
, struct blob_buf
*b
)
2314 const char *const counters
[] = {
2315 "collisions", "rx_frame_errors", "tx_compressed",
2316 "multicast", "rx_length_errors", "tx_dropped",
2317 "rx_bytes", "rx_missed_errors", "tx_errors",
2318 "rx_compressed", "rx_over_errors", "tx_fifo_errors",
2319 "rx_crc_errors", "rx_packets", "tx_heartbeat_errors",
2320 "rx_dropped", "tx_aborted_errors", "tx_packets",
2321 "rx_errors", "tx_bytes", "tx_window_errors",
2322 "rx_fifo_errors", "tx_carrier_errors",
2329 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/statistics", dev
->ifname
);
2330 stats_dir
= open(buf
, O_DIRECTORY
);
2334 for (i
= 0; i
< ARRAY_SIZE(counters
); i
++)
2335 if (read_uint64_file(stats_dir
, counters
[i
], &val
))
2336 blobmsg_add_u64(b
, counters
[i
], val
);
2342 static int system_addr(struct device
*dev
, struct device_addr
*addr
, int cmd
)
2344 bool v4
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
);
2345 int alen
= v4
? 4 : 16;
2346 unsigned int flags
= 0;
2347 struct ifaddrmsg ifa
= {
2348 .ifa_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2349 .ifa_prefixlen
= addr
->mask
,
2350 .ifa_index
= dev
->ifindex
,
2354 if (cmd
== RTM_NEWADDR
)
2355 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
2357 msg
= nlmsg_alloc_simple(cmd
, flags
);
2361 nlmsg_append(msg
, &ifa
, sizeof(ifa
), 0);
2362 nla_put(msg
, IFA_LOCAL
, alen
, &addr
->addr
);
2364 if (addr
->broadcast
)
2365 nla_put_u32(msg
, IFA_BROADCAST
, addr
->broadcast
);
2366 if (addr
->point_to_point
)
2367 nla_put_u32(msg
, IFA_ADDRESS
, addr
->point_to_point
);
2369 time_t now
= system_get_rtime();
2370 struct ifa_cacheinfo cinfo
= {0xffffffffU
, 0xffffffffU
, 0, 0};
2372 if (addr
->preferred_until
) {
2373 int64_t preferred
= addr
->preferred_until
- now
;
2376 else if (preferred
> UINT32_MAX
)
2377 preferred
= UINT32_MAX
;
2379 cinfo
.ifa_prefered
= preferred
;
2382 if (addr
->valid_until
) {
2383 int64_t valid
= addr
->valid_until
- now
;
2388 else if (valid
> UINT32_MAX
)
2391 cinfo
.ifa_valid
= valid
;
2394 nla_put(msg
, IFA_CACHEINFO
, sizeof(cinfo
), &cinfo
);
2396 if (cmd
== RTM_NEWADDR
&& (addr
->flags
& DEVADDR_OFFLINK
))
2397 nla_put_u32(msg
, IFA_FLAGS
, IFA_F_NOPREFIXROUTE
);
2400 return system_rtnl_call(msg
);
2403 int system_add_address(struct device
*dev
, struct device_addr
*addr
)
2405 return system_addr(dev
, addr
, RTM_NEWADDR
);
2408 int system_del_address(struct device
*dev
, struct device_addr
*addr
)
2410 return system_addr(dev
, addr
, RTM_DELADDR
);
2413 static int system_neigh(struct device
*dev
, struct device_neighbor
*neighbor
, int cmd
)
2415 int alen
= ((neighbor
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
2416 unsigned int flags
= 0;
2417 struct ndmsg ndm
= {
2418 .ndm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2419 .ndm_ifindex
= dev
->ifindex
,
2420 .ndm_state
= NUD_PERMANENT
,
2421 .ndm_flags
= (neighbor
->proxy
? NTF_PROXY
: 0) | (neighbor
->router
? NTF_ROUTER
: 0),
2425 if (cmd
== RTM_NEWNEIGH
)
2426 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
2428 msg
= nlmsg_alloc_simple(cmd
, flags
);
2433 nlmsg_append(msg
, &ndm
, sizeof(ndm
), 0);
2435 nla_put(msg
, NDA_DST
, alen
, &neighbor
->addr
);
2436 if (neighbor
->flags
& DEVNEIGH_MAC
)
2437 nla_put(msg
, NDA_LLADDR
, sizeof(neighbor
->macaddr
), &neighbor
->macaddr
);
2440 return system_rtnl_call(msg
);
2443 int system_add_neighbor(struct device
*dev
, struct device_neighbor
*neighbor
)
2445 return system_neigh(dev
, neighbor
, RTM_NEWNEIGH
);
2448 int system_del_neighbor(struct device
*dev
, struct device_neighbor
*neighbor
)
2450 return system_neigh(dev
, neighbor
, RTM_DELNEIGH
);
2453 static int system_rt(struct device
*dev
, struct device_route
*route
, int cmd
)
2455 int alen
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
2457 unsigned int flags
= 0;
2460 have_gw
= !!route
->nexthop
.in
.s_addr
;
2462 have_gw
= route
->nexthop
.in6
.s6_addr32
[0] ||
2463 route
->nexthop
.in6
.s6_addr32
[1] ||
2464 route
->nexthop
.in6
.s6_addr32
[2] ||
2465 route
->nexthop
.in6
.s6_addr32
[3];
2467 unsigned int table
= (route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))
2468 ? route
->table
: RT_TABLE_MAIN
;
2470 struct rtmsg rtm
= {
2471 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2472 .rtm_dst_len
= route
->mask
,
2473 .rtm_src_len
= route
->sourcemask
,
2474 .rtm_table
= (table
< 256) ? table
: RT_TABLE_UNSPEC
,
2475 .rtm_protocol
= (route
->flags
& DEVROUTE_PROTO
) ? route
->proto
: RTPROT_STATIC
,
2476 .rtm_scope
= RT_SCOPE_NOWHERE
,
2477 .rtm_type
= (cmd
== RTM_DELROUTE
) ? 0: RTN_UNICAST
,
2478 .rtm_flags
= (route
->flags
& DEVROUTE_ONLINK
) ? RTNH_F_ONLINK
: 0,
2482 if (cmd
== RTM_NEWROUTE
) {
2483 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
2485 if (!dev
) { /* Add null-route */
2486 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
2487 rtm
.rtm_type
= RTN_UNREACHABLE
;
2490 rtm
.rtm_scope
= (have_gw
) ? RT_SCOPE_UNIVERSE
: RT_SCOPE_LINK
;
2493 if (route
->flags
& DEVROUTE_TYPE
) {
2494 rtm
.rtm_type
= route
->type
;
2495 if (!(route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))) {
2496 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_BROADCAST
||
2497 rtm
.rtm_type
== RTN_NAT
|| rtm
.rtm_type
== RTN_ANYCAST
)
2498 rtm
.rtm_table
= RT_TABLE_LOCAL
;
2501 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_NAT
) {
2502 rtm
.rtm_scope
= RT_SCOPE_HOST
;
2503 } else if (rtm
.rtm_type
== RTN_BROADCAST
|| rtm
.rtm_type
== RTN_MULTICAST
||
2504 rtm
.rtm_type
== RTN_ANYCAST
) {
2505 rtm
.rtm_scope
= RT_SCOPE_LINK
;
2506 } else if (rtm
.rtm_type
== RTN_BLACKHOLE
|| rtm
.rtm_type
== RTN_UNREACHABLE
||
2507 rtm
.rtm_type
== RTN_PROHIBIT
|| rtm
.rtm_type
== RTN_FAILED_POLICY
||
2508 rtm
.rtm_type
== RTN_THROW
) {
2509 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
2514 msg
= nlmsg_alloc_simple(cmd
, flags
);
2518 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
2521 nla_put(msg
, RTA_DST
, alen
, &route
->addr
);
2523 if (route
->sourcemask
) {
2524 if (rtm
.rtm_family
== AF_INET
)
2525 nla_put(msg
, RTA_PREFSRC
, alen
, &route
->source
);
2527 nla_put(msg
, RTA_SRC
, alen
, &route
->source
);
2530 if (route
->metric
> 0)
2531 nla_put_u32(msg
, RTA_PRIORITY
, route
->metric
);
2534 nla_put(msg
, RTA_GATEWAY
, alen
, &route
->nexthop
);
2537 nla_put_u32(msg
, RTA_OIF
, dev
->ifindex
);
2540 nla_put_u32(msg
, RTA_TABLE
, table
);
2542 if (route
->flags
& DEVROUTE_MTU
) {
2543 struct nlattr
*metrics
;
2545 if (!(metrics
= nla_nest_start(msg
, RTA_METRICS
)))
2546 goto nla_put_failure
;
2548 nla_put_u32(msg
, RTAX_MTU
, route
->mtu
);
2550 nla_nest_end(msg
, metrics
);
2553 return system_rtnl_call(msg
);
2560 int system_add_route(struct device
*dev
, struct device_route
*route
)
2562 return system_rt(dev
, route
, RTM_NEWROUTE
);
2565 int system_del_route(struct device
*dev
, struct device_route
*route
)
2567 return system_rt(dev
, route
, RTM_DELROUTE
);
2570 int system_flush_routes(void)
2572 const char *names
[] = {
2573 "/proc/sys/net/ipv4/route/flush",
2574 "/proc/sys/net/ipv6/route/flush"
2578 for (i
= 0; i
< ARRAY_SIZE(names
); i
++) {
2579 fd
= open(names
[i
], O_WRONLY
);
2583 if (write(fd
, "-1", 2)) {}
2589 bool system_resolve_rt_type(const char *type
, unsigned int *id
)
2591 return system_rtn_aton(type
, id
);
2594 bool system_resolve_rt_proto(const char *type
, unsigned int *id
)
2598 unsigned int n
, proto
= 256;
2599 n
= strtoul(type
, &e
, 0);
2600 if (!*e
&& e
!= type
)
2602 else if (!strcmp(type
, "unspec"))
2603 proto
= RTPROT_UNSPEC
;
2604 else if (!strcmp(type
, "kernel"))
2605 proto
= RTPROT_KERNEL
;
2606 else if (!strcmp(type
, "boot"))
2607 proto
= RTPROT_BOOT
;
2608 else if (!strcmp(type
, "static"))
2609 proto
= RTPROT_STATIC
;
2610 else if ((f
= fopen("/etc/iproute2/rt_protos", "r")) != NULL
) {
2611 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
) {
2612 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2615 n
= strtoul(e
, NULL
, 10);
2616 e
= strtok(NULL
, " \t\n");
2618 if (e
&& !strcmp(e
, type
)) {
2633 bool system_resolve_rt_table(const char *name
, unsigned int *id
)
2637 unsigned int n
, table
= RT_TABLE_UNSPEC
;
2639 /* first try to parse table as number */
2640 if ((n
= strtoul(name
, &e
, 0)) > 0 && !*e
)
2643 /* handle well known aliases */
2644 else if (!strcmp(name
, "default"))
2645 table
= RT_TABLE_DEFAULT
;
2646 else if (!strcmp(name
, "main"))
2647 table
= RT_TABLE_MAIN
;
2648 else if (!strcmp(name
, "local"))
2649 table
= RT_TABLE_LOCAL
;
2651 /* try to look up name in /etc/iproute2/rt_tables */
2652 else if ((f
= fopen("/etc/iproute2/rt_tables", "r")) != NULL
)
2654 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
)
2656 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2659 n
= strtoul(e
, NULL
, 10);
2660 e
= strtok(NULL
, " \t\n");
2662 if (e
&& !strcmp(e
, name
))
2672 if (table
== RT_TABLE_UNSPEC
)
2679 bool system_is_default_rt_table(unsigned int id
)
2681 return (id
== RT_TABLE_MAIN
);
2684 bool system_resolve_rpfilter(const char *filter
, unsigned int *id
)
2689 if (!strcmp(filter
, "strict"))
2691 else if (!strcmp(filter
, "loose"))
2694 n
= strtoul(filter
, &e
, 0);
2695 if (*e
|| e
== filter
|| n
> 2)
2703 static int system_iprule(struct iprule
*rule
, int cmd
)
2705 int alen
= ((rule
->flags
& IPRULE_FAMILY
) == IPRULE_INET4
) ? 4 : 16;
2708 struct rtmsg rtm
= {
2709 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2710 .rtm_protocol
= RTPROT_STATIC
,
2711 .rtm_scope
= RT_SCOPE_UNIVERSE
,
2712 .rtm_table
= RT_TABLE_UNSPEC
,
2713 .rtm_type
= RTN_UNSPEC
,
2717 if (cmd
== RTM_NEWRULE
)
2718 rtm
.rtm_type
= RTN_UNICAST
;
2721 rtm
.rtm_flags
|= FIB_RULE_INVERT
;
2723 if (rule
->flags
& IPRULE_SRC
)
2724 rtm
.rtm_src_len
= rule
->src_mask
;
2726 if (rule
->flags
& IPRULE_DEST
)
2727 rtm
.rtm_dst_len
= rule
->dest_mask
;
2729 if (rule
->flags
& IPRULE_TOS
)
2730 rtm
.rtm_tos
= rule
->tos
;
2732 if (rule
->flags
& IPRULE_LOOKUP
) {
2733 if (rule
->lookup
< 256)
2734 rtm
.rtm_table
= rule
->lookup
;
2737 if (rule
->flags
& IPRULE_ACTION
)
2738 rtm
.rtm_type
= rule
->action
;
2739 else if (rule
->flags
& IPRULE_GOTO
)
2740 rtm
.rtm_type
= FR_ACT_GOTO
;
2741 else if (!(rule
->flags
& (IPRULE_LOOKUP
| IPRULE_ACTION
| IPRULE_GOTO
)))
2742 rtm
.rtm_type
= FR_ACT_NOP
;
2744 msg
= nlmsg_alloc_simple(cmd
, NLM_F_REQUEST
);
2749 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
2751 if (rule
->flags
& IPRULE_IN
)
2752 nla_put(msg
, FRA_IFNAME
, strlen(rule
->in_dev
) + 1, rule
->in_dev
);
2754 if (rule
->flags
& IPRULE_OUT
)
2755 nla_put(msg
, FRA_OIFNAME
, strlen(rule
->out_dev
) + 1, rule
->out_dev
);
2757 if (rule
->flags
& IPRULE_SRC
)
2758 nla_put(msg
, FRA_SRC
, alen
, &rule
->src_addr
);
2760 if (rule
->flags
& IPRULE_DEST
)
2761 nla_put(msg
, FRA_DST
, alen
, &rule
->dest_addr
);
2763 if (rule
->flags
& IPRULE_PRIORITY
)
2764 nla_put_u32(msg
, FRA_PRIORITY
, rule
->priority
);
2765 else if (cmd
== RTM_NEWRULE
)
2766 nla_put_u32(msg
, FRA_PRIORITY
, rule
->order
);
2768 if (rule
->flags
& IPRULE_FWMARK
)
2769 nla_put_u32(msg
, FRA_FWMARK
, rule
->fwmark
);
2771 if (rule
->flags
& IPRULE_FWMASK
)
2772 nla_put_u32(msg
, FRA_FWMASK
, rule
->fwmask
);
2774 if (rule
->flags
& IPRULE_LOOKUP
) {
2775 if (rule
->lookup
>= 256)
2776 nla_put_u32(msg
, FRA_TABLE
, rule
->lookup
);
2779 if (rule
->flags
& IPRULE_SUP_PREFIXLEN
)
2780 nla_put_u32(msg
, FRA_SUPPRESS_PREFIXLEN
, rule
->sup_prefixlen
);
2782 if (rule
->flags
& IPRULE_GOTO
)
2783 nla_put_u32(msg
, FRA_GOTO
, rule
->gotoid
);
2785 return system_rtnl_call(msg
);
2788 int system_add_iprule(struct iprule
*rule
)
2790 return system_iprule(rule
, RTM_NEWRULE
);
2793 int system_del_iprule(struct iprule
*rule
)
2795 return system_iprule(rule
, RTM_DELRULE
);
2798 int system_flush_iprules(void)
2803 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET
);
2804 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET6
);
2806 memset(&rule
, 0, sizeof(rule
));
2809 rule
.flags
= IPRULE_INET4
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
2812 rule
.lookup
= RT_TABLE_LOCAL
;
2813 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2815 rule
.priority
= 32766;
2816 rule
.lookup
= RT_TABLE_MAIN
;
2817 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2819 rule
.priority
= 32767;
2820 rule
.lookup
= RT_TABLE_DEFAULT
;
2821 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2824 rule
.flags
= IPRULE_INET6
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
2827 rule
.lookup
= RT_TABLE_LOCAL
;
2828 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2830 rule
.priority
= 32766;
2831 rule
.lookup
= RT_TABLE_MAIN
;
2832 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2837 bool system_resolve_iprule_action(const char *action
, unsigned int *id
)
2839 return system_rtn_aton(action
, id
);
2842 time_t system_get_rtime(void)
2847 if (clock_gettime(CLOCK_MONOTONIC
, &ts
) == 0)
2850 if (gettimeofday(&tv
, NULL
) == 0)
2857 #define IP_DF 0x4000
2860 static int tunnel_ioctl(const char *name
, int cmd
, void *p
)
2864 memset(&ifr
, 0, sizeof(ifr
));
2865 strncpy(ifr
.ifr_name
, name
, sizeof(ifr
.ifr_name
) - 1);
2866 ifr
.ifr_ifru
.ifru_data
= p
;
2867 return ioctl(sock_ioctl
, cmd
, &ifr
);
2870 #ifdef IFLA_IPTUN_MAX
2871 static int system_add_ip6_tunnel(const char *name
, const unsigned int link
,
2872 struct blob_attr
**tb
)
2874 struct nl_msg
*nlm
= nlmsg_alloc_simple(RTM_NEWLINK
,
2875 NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2876 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
};
2877 struct blob_attr
*cur
;
2878 int ret
= 0, ttl
= 0;
2883 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2884 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2887 nla_put_u32(nlm
, IFLA_LINK
, link
);
2889 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2895 nla_put_string(nlm
, IFLA_INFO_KIND
, "ip6tnl");
2896 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2903 nla_put_u32(nlm
, IFLA_IPTUN_LINK
, link
);
2905 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2906 ttl
= blobmsg_get_u32(cur
);
2908 nla_put_u8(nlm
, IFLA_IPTUN_PROTO
, IPPROTO_IPIP
);
2909 nla_put_u8(nlm
, IFLA_IPTUN_TTL
, (ttl
) ? ttl
: 64);
2911 struct in6_addr in6buf
;
2912 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2913 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2917 nla_put(nlm
, IFLA_IPTUN_LOCAL
, sizeof(in6buf
), &in6buf
);
2920 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2921 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2925 nla_put(nlm
, IFLA_IPTUN_REMOTE
, sizeof(in6buf
), &in6buf
);
2928 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2929 struct blob_attr
*tb_data
[__IPIP6_DATA_ATTR_MAX
];
2930 uint32_t tun_flags
= IP6_TNL_F_IGN_ENCAP_LIMIT
;
2932 blobmsg_parse(ipip6_data_attr_list
.params
, __IPIP6_DATA_ATTR_MAX
, tb_data
,
2933 blobmsg_data(cur
), blobmsg_len(cur
));
2935 if ((cur
= tb_data
[IPIP6_DATA_ENCAPLIMIT
])) {
2936 char *str
= blobmsg_get_string(cur
);
2938 if (strcmp(str
, "ignore")) {
2940 unsigned encap_limit
= strtoul(str
, &e
, 0);
2942 if (e
== str
|| *e
|| encap_limit
> 255) {
2947 nla_put_u8(nlm
, IFLA_IPTUN_ENCAP_LIMIT
, encap_limit
);
2948 tun_flags
&= ~IP6_TNL_F_IGN_ENCAP_LIMIT
;
2952 #ifdef IFLA_IPTUN_FMR_MAX
2953 if ((cur
= tb_data
[IPIP6_DATA_FMRS
])) {
2954 struct blob_attr
*rcur
;
2955 unsigned rrem
, fmrcnt
= 0;
2956 struct nlattr
*fmrs
= nla_nest_start(nlm
, IFLA_IPTUN_FMRS
);
2963 blobmsg_for_each_attr(rcur
, cur
, rrem
) {
2964 struct blob_attr
*tb_fmr
[__FMR_DATA_ATTR_MAX
], *tb_cur
;
2965 struct in6_addr ip6prefix
;
2966 struct in_addr ip4prefix
;
2967 unsigned ip4len
, ip6len
, ealen
, offset
;
2969 blobmsg_parse(fmr_data_attr_list
.params
, __FMR_DATA_ATTR_MAX
, tb_fmr
,
2970 blobmsg_data(rcur
), blobmsg_len(rcur
));
2972 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX6
]) ||
2973 !parse_ip_and_netmask(AF_INET6
,
2974 blobmsg_data(tb_cur
), &ip6prefix
,
2980 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX4
]) ||
2981 !parse_ip_and_netmask(AF_INET
,
2982 blobmsg_data(tb_cur
), &ip4prefix
,
2988 if (!(tb_cur
= tb_fmr
[FMR_DATA_EALEN
])) {
2992 ealen
= blobmsg_get_u32(tb_cur
);
2994 if (!(tb_cur
= tb_fmr
[FMR_DATA_OFFSET
])) {
2998 offset
= blobmsg_get_u32(tb_cur
);
3000 struct nlattr
*rule
= nla_nest_start(nlm
, ++fmrcnt
);
3006 nla_put(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX
, sizeof(ip6prefix
), &ip6prefix
);
3007 nla_put(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX
, sizeof(ip4prefix
), &ip4prefix
);
3008 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX_LEN
, ip6len
);
3009 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX_LEN
, ip4len
);
3010 nla_put_u8(nlm
, IFLA_IPTUN_FMR_EA_LEN
, ealen
);
3011 nla_put_u8(nlm
, IFLA_IPTUN_FMR_OFFSET
, offset
);
3013 nla_nest_end(nlm
, rule
);
3016 nla_nest_end(nlm
, fmrs
);
3020 nla_put_u32(nlm
, IFLA_IPTUN_FLAGS
, tun_flags
);
3023 nla_nest_end(nlm
, infodata
);
3024 nla_nest_end(nlm
, linkinfo
);
3026 return system_rtnl_call(nlm
);
3034 #ifdef IFLA_IPTUN_MAX
3035 #define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
3036 static int system_add_gre_tunnel(const char *name
, const char *kind
,
3037 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3040 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3041 struct blob_attr
*cur
;
3042 uint32_t ikey
= 0, okey
= 0, flowinfo
= 0, flags6
= IP6_TNL_F_IGN_ENCAP_LIMIT
;
3043 uint16_t iflags
= 0, oflags
= 0;
3045 int ret
= 0, ttl
= 0;
3046 unsigned encap_limit
= 0;
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_GRE_LINK
, link
);
3071 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3072 ttl
= blobmsg_get_u32(cur
);
3074 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3075 char *str
= blobmsg_get_string(cur
);
3076 if (strcmp(str
, "inherit")) {
3079 if (!system_tos_aton(str
, &uval
)) {
3085 flowinfo
|= htonl(uval
<< 20) & IP6_FLOWINFO_TCLASS
;
3090 flags6
|= IP6_TNL_F_USE_ORIG_TCLASS
;
3096 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3097 struct blob_attr
*tb_data
[__GRE_DATA_ATTR_MAX
];
3099 blobmsg_parse(gre_data_attr_list
.params
, __GRE_DATA_ATTR_MAX
, tb_data
,
3100 blobmsg_data(cur
), blobmsg_len(cur
));
3102 if ((cur
= tb_data
[GRE_DATA_IKEY
])) {
3103 if ((ikey
= blobmsg_get_u32(cur
)))
3107 if ((cur
= tb_data
[GRE_DATA_OKEY
])) {
3108 if ((okey
= blobmsg_get_u32(cur
)))
3112 if ((cur
= tb_data
[GRE_DATA_ICSUM
])) {
3113 if (blobmsg_get_bool(cur
))
3117 if ((cur
= tb_data
[GRE_DATA_OCSUM
])) {
3118 if (blobmsg_get_bool(cur
))
3122 if ((cur
= tb_data
[GRE_DATA_ISEQNO
])) {
3123 if (blobmsg_get_bool(cur
))
3127 if ((cur
= tb_data
[GRE_DATA_OSEQNO
])) {
3128 if (blobmsg_get_bool(cur
))
3132 if ((cur
= tb_data
[GRE_DATA_ENCAPLIMIT
])) {
3133 char *str
= blobmsg_get_string(cur
);
3135 if (strcmp(str
, "ignore")) {
3138 encap_limit
= strtoul(str
, &e
, 0);
3140 if (e
== str
|| *e
|| encap_limit
> 255) {
3145 flags6
&= ~IP6_TNL_F_IGN_ENCAP_LIMIT
;
3151 struct in6_addr in6buf
;
3152 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3153 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3157 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(in6buf
), &in6buf
);
3160 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3161 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3165 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(in6buf
), &in6buf
);
3168 if (!(flags6
& IP6_TNL_F_IGN_ENCAP_LIMIT
))
3169 nla_put_u8(nlm
, IFLA_GRE_ENCAP_LIMIT
, encap_limit
);
3172 nla_put_u32(nlm
, IFLA_GRE_FLOWINFO
, flowinfo
);
3175 nla_put_u32(nlm
, IFLA_GRE_FLAGS
, flags6
);
3180 struct in_addr inbuf
;
3183 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3184 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3188 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(inbuf
), &inbuf
);
3191 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3192 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3196 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(inbuf
), &inbuf
);
3198 if (IN_MULTICAST(ntohl(inbuf
.s_addr
))) {
3200 okey
= inbuf
.s_addr
;
3205 ikey
= inbuf
.s_addr
;
3211 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
3212 set_df
= blobmsg_get_bool(cur
);
3215 /* ttl != 0 and nopmtudisc are incompatible */
3223 nla_put_u8(nlm
, IFLA_GRE_PMTUDISC
, set_df
? 1 : 0);
3225 nla_put_u8(nlm
, IFLA_GRE_TOS
, tos
);
3229 nla_put_u8(nlm
, IFLA_GRE_TTL
, ttl
);
3232 nla_put_u16(nlm
, IFLA_GRE_OFLAGS
, oflags
);
3235 nla_put_u16(nlm
, IFLA_GRE_IFLAGS
, iflags
);
3238 nla_put_u32(nlm
, IFLA_GRE_OKEY
, htonl(okey
));
3241 nla_put_u32(nlm
, IFLA_GRE_IKEY
, htonl(ikey
));
3243 nla_nest_end(nlm
, infodata
);
3244 nla_nest_end(nlm
, linkinfo
);
3246 return system_rtnl_call(nlm
);
3255 static int system_add_vti_tunnel(const char *name
, const char *kind
,
3256 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3259 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3260 struct blob_attr
*cur
;
3263 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3267 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3268 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3270 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3276 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
3277 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3284 nla_put_u32(nlm
, IFLA_VTI_LINK
, link
);
3287 struct in6_addr in6buf
;
3288 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3289 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3293 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(in6buf
), &in6buf
);
3296 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3297 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3301 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(in6buf
), &in6buf
);
3305 struct in_addr inbuf
;
3307 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3308 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3312 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(inbuf
), &inbuf
);
3315 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3316 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3320 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(inbuf
), &inbuf
);
3325 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3326 struct blob_attr
*tb_data
[__VTI_DATA_ATTR_MAX
];
3327 uint32_t ikey
= 0, okey
= 0;
3329 blobmsg_parse(vti_data_attr_list
.params
, __VTI_DATA_ATTR_MAX
, tb_data
,
3330 blobmsg_data(cur
), blobmsg_len(cur
));
3332 if ((cur
= tb_data
[VTI_DATA_IKEY
])) {
3333 if ((ikey
= blobmsg_get_u32(cur
)))
3334 nla_put_u32(nlm
, IFLA_VTI_IKEY
, htonl(ikey
));
3337 if ((cur
= tb_data
[VTI_DATA_OKEY
])) {
3338 if ((okey
= blobmsg_get_u32(cur
)))
3339 nla_put_u32(nlm
, IFLA_VTI_OKEY
, htonl(okey
));
3343 nla_nest_end(nlm
, infodata
);
3344 nla_nest_end(nlm
, linkinfo
);
3346 return system_rtnl_call(nlm
);
3354 #ifdef IFLA_XFRM_MAX
3355 static int system_add_xfrm_tunnel(const char *name
, const char *kind
,
3356 const unsigned int link
, struct blob_attr
**tb
)
3359 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3360 struct blob_attr
*cur
;
3363 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3367 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3368 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3370 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3376 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
3377 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3384 nla_put_u32(nlm
, IFLA_XFRM_LINK
, link
);
3386 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3387 struct blob_attr
*tb_data
[__XFRM_DATA_ATTR_MAX
];
3390 blobmsg_parse(xfrm_data_attr_list
.params
, __XFRM_DATA_ATTR_MAX
, tb_data
,
3391 blobmsg_data(cur
), blobmsg_len(cur
));
3393 if ((cur
= tb_data
[XFRM_DATA_IF_ID
])) {
3394 if ((if_id
= blobmsg_get_u32(cur
)))
3395 nla_put_u32(nlm
, IFLA_XFRM_IF_ID
, if_id
);
3400 nla_nest_end(nlm
, infodata
);
3401 nla_nest_end(nlm
, linkinfo
);
3403 return system_rtnl_call(nlm
);
3411 #ifdef IFLA_VXLAN_MAX
3412 static void system_vxlan_map_bool_attr(struct nl_msg
*msg
, struct blob_attr
**tb_data
, int attrtype
, int vxlandatatype
, bool invert
) {
3413 struct blob_attr
*cur
;
3414 if ((cur
= tb_data
[vxlandatatype
])) {
3415 bool val
= blobmsg_get_bool(cur
);
3419 if ((attrtype
== IFLA_VXLAN_GBP
) && val
)
3420 nla_put_flag(msg
, attrtype
);
3422 nla_put_u8(msg
, attrtype
, val
);
3427 static int system_add_vxlan(const char *name
, const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3429 struct blob_attr
*tb_data
[__VXLAN_DATA_ATTR_MAX
];
3431 struct nlattr
*linkinfo
, *data
;
3432 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
3433 struct blob_attr
*cur
;
3436 if ((cur
= tb
[TUNNEL_ATTR_DATA
]))
3437 blobmsg_parse(vxlan_data_attr_list
.params
, __VXLAN_DATA_ATTR_MAX
, tb_data
,
3438 blobmsg_data(cur
), blobmsg_len(cur
));
3442 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
3447 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
3449 nla_put_string(msg
, IFLA_IFNAME
, name
);
3451 if ((cur
= tb_data
[VXLAN_DATA_ATTR_MACADDR
])) {
3452 struct ether_addr
*ea
= ether_aton(blobmsg_get_string(cur
));
3458 nla_put(msg
, IFLA_ADDRESS
, ETH_ALEN
, ea
);
3461 if ((cur
= tb
[TUNNEL_ATTR_MTU
])) {
3462 uint32_t mtu
= blobmsg_get_u32(cur
);
3463 nla_put_u32(msg
, IFLA_MTU
, mtu
);
3466 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
))) {
3471 nla_put_string(msg
, IFLA_INFO_KIND
, "vxlan");
3473 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
))) {
3479 nla_put_u32(msg
, IFLA_VXLAN_LINK
, link
);
3481 if ((cur
= tb_data
[VXLAN_DATA_ATTR_ID
])) {
3482 uint32_t id
= blobmsg_get_u32(cur
);
3483 if (id
>= (1u << 24) - 1) {
3488 nla_put_u32(msg
, IFLA_VXLAN_ID
, id
);
3492 struct in6_addr in6buf
;
3493 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3494 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3498 nla_put(msg
, IFLA_VXLAN_LOCAL6
, sizeof(in6buf
), &in6buf
);
3501 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3502 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3506 nla_put(msg
, IFLA_VXLAN_GROUP6
, sizeof(in6buf
), &in6buf
);
3509 struct in_addr inbuf
;
3511 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3512 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3516 nla_put(msg
, IFLA_VXLAN_LOCAL
, sizeof(inbuf
), &inbuf
);
3519 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3520 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3524 nla_put(msg
, IFLA_VXLAN_GROUP
, sizeof(inbuf
), &inbuf
);
3528 uint32_t port
= 4789;
3529 if ((cur
= tb_data
[VXLAN_DATA_ATTR_PORT
])) {
3530 port
= blobmsg_get_u32(cur
);
3531 if (port
< 1 || port
> 65535) {
3536 nla_put_u16(msg
, IFLA_VXLAN_PORT
, htons(port
));
3538 if ((cur
= tb_data
[VXLAN_DATA_ATTR_SRCPORTMIN
])) {
3539 struct ifla_vxlan_port_range srcports
= {0,0};
3541 uint32_t low
= blobmsg_get_u32(cur
);
3542 if (low
< 1 || low
> 65535 - 1) {
3547 srcports
.low
= htons((uint16_t) low
);
3548 srcports
.high
= htons((uint16_t) (low
+1));
3550 if ((cur
= tb_data
[VXLAN_DATA_ATTR_SRCPORTMAX
])) {
3551 uint32_t high
= blobmsg_get_u32(cur
);
3552 if (high
< 1 || high
> 65535) {
3558 srcports
.high
= htons((uint16_t) high
);
3561 nla_put(msg
, IFLA_VXLAN_PORT_RANGE
, sizeof(srcports
), &srcports
);
3564 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_CSUM
, VXLAN_DATA_ATTR_TXCSUM
, false);
3565 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_ZERO_CSUM6_RX
, VXLAN_DATA_ATTR_RXCSUM
, true);
3566 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_ZERO_CSUM6_TX
, VXLAN_DATA_ATTR_TXCSUM
, true);
3567 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_LEARNING
, VXLAN_DATA_ATTR_LEARNING
, false);
3568 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_RSC
, VXLAN_DATA_ATTR_RSC
, false);
3569 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_PROXY
, VXLAN_DATA_ATTR_PROXY
, false);
3570 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_L2MISS
, VXLAN_DATA_ATTR_L2MISS
, false);
3571 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_L3MISS
, VXLAN_DATA_ATTR_L3MISS
, false);
3572 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_GBP
, VXLAN_DATA_ATTR_GBP
, false);
3574 if ((cur
= tb_data
[VXLAN_DATA_ATTR_AGEING
])) {
3575 uint32_t ageing
= blobmsg_get_u32(cur
);
3576 nla_put_u32(msg
, IFLA_VXLAN_AGEING
, ageing
);
3579 if ((cur
= tb_data
[VXLAN_DATA_ATTR_LIMIT
])) {
3580 uint32_t maxaddress
= blobmsg_get_u32(cur
);
3581 nla_put_u32(msg
, IFLA_VXLAN_LIMIT
, maxaddress
);
3584 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3585 char *str
= blobmsg_get_string(cur
);
3588 if (strcmp(str
, "inherit")) {
3589 if (!system_tos_aton(str
, &tos
)) {
3595 nla_put_u8(msg
, IFLA_VXLAN_TOS
, tos
);
3598 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
3599 uint32_t ttl
= blobmsg_get_u32(cur
);
3600 if (ttl
< 1 || ttl
> 255) {
3605 nla_put_u8(msg
, IFLA_VXLAN_TTL
, ttl
);
3608 nla_nest_end(msg
, data
);
3609 nla_nest_end(msg
, linkinfo
);
3611 ret
= system_rtnl_call(msg
);
3613 D(SYSTEM
, "Error adding vxlan '%s': %d\n", name
, ret
);
3623 static int system_add_sit_tunnel(const char *name
, const unsigned int link
, struct blob_attr
**tb
)
3625 struct blob_attr
*cur
;
3628 if (system_add_proto_tunnel(name
, IPPROTO_IPV6
, link
, tb
) < 0)
3632 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3633 struct blob_attr
*tb_data
[__SIXRD_DATA_ATTR_MAX
];
3635 struct ip_tunnel_6rd p6
;
3637 blobmsg_parse(sixrd_data_attr_list
.params
, __SIXRD_DATA_ATTR_MAX
, tb_data
,
3638 blobmsg_data(cur
), blobmsg_len(cur
));
3640 memset(&p6
, 0, sizeof(p6
));
3642 if ((cur
= tb_data
[SIXRD_DATA_PREFIX
])) {
3643 if (!parse_ip_and_netmask(AF_INET6
, blobmsg_data(cur
),
3644 &p6
.prefix
, &mask
) || mask
> 128) {
3649 p6
.prefixlen
= mask
;
3652 if ((cur
= tb_data
[SIXRD_DATA_RELAY_PREFIX
])) {
3653 if (!parse_ip_and_netmask(AF_INET
, blobmsg_data(cur
),
3654 &p6
.relay_prefix
, &mask
) || mask
> 32) {
3659 p6
.relay_prefixlen
= mask
;
3662 if (tunnel_ioctl(name
, SIOCADD6RD
, &p6
) < 0) {
3672 __system_del_ip_tunnel(name
, tb
);
3676 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
, const unsigned int link
, struct blob_attr
**tb
)
3678 struct blob_attr
*cur
;
3680 struct ip_tunnel_parm p
= {
3689 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
]) &&
3690 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.saddr
) < 1)
3693 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
]) &&
3694 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.daddr
) < 1)
3697 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
3698 set_df
= blobmsg_get_bool(cur
);
3700 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3701 p
.iph
.ttl
= blobmsg_get_u32(cur
);
3703 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3704 char *str
= blobmsg_get_string(cur
);
3705 if (strcmp(str
, "inherit")) {
3708 if (!system_tos_aton(str
, &uval
))
3716 p
.iph
.frag_off
= set_df
? htons(IP_DF
) : 0;
3717 /* ttl !=0 and nopmtudisc are incompatible */
3718 if (p
.iph
.ttl
&& p
.iph
.frag_off
== 0)
3721 strncpy(p
.name
, name
, sizeof(p
.name
) - 1);
3723 switch (p
.iph
.protocol
) {
3725 return tunnel_ioctl("tunl0", SIOCADDTUNNEL
, &p
);
3727 return tunnel_ioctl("sit0", SIOCADDTUNNEL
, &p
);
3734 static int __system_del_ip_tunnel(const char *name
, struct blob_attr
**tb
)
3736 struct blob_attr
*cur
;
3739 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
3741 str
= blobmsg_data(cur
);
3743 if (!strcmp(str
, "greip") || !strcmp(str
, "gretapip") ||
3744 !strcmp(str
, "greip6") || !strcmp(str
, "gretapip6") ||
3745 !strcmp(str
, "vtiip") || !strcmp(str
, "vtiip6") ||
3746 !strcmp(str
, "vxlan") || !strcmp(str
, "vxlan6") ||
3747 !strcmp(str
, "xfrm"))
3748 return system_link_del(name
);
3750 return tunnel_ioctl(name
, SIOCDELTUNNEL
, NULL
);
3753 int system_del_ip_tunnel(const char *name
, struct blob_attr
*attr
)
3755 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
3757 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
3758 blob_data(attr
), blob_len(attr
));
3760 return __system_del_ip_tunnel(name
, tb
);
3763 int system_update_ipv6_mtu(struct device
*dev
, int mtu
)
3769 snprintf(buf
, sizeof(buf
), "/proc/sys/net/ipv6/conf/%s/mtu",
3772 fd
= open(buf
, O_RDWR
);
3777 ssize_t len
= read(fd
, buf
, sizeof(buf
) - 1);
3784 if (write(fd
, buf
, snprintf(buf
, sizeof(buf
), "%i", mtu
)) > 0)
3793 int system_add_ip_tunnel(const char *name
, struct blob_attr
*attr
)
3795 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
3796 struct blob_attr
*cur
;
3799 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
3800 blob_data(attr
), blob_len(attr
));
3802 __system_del_ip_tunnel(name
, tb
);
3804 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
3806 str
= blobmsg_data(cur
);
3808 unsigned int ttl
= 0;
3809 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
3810 ttl
= blobmsg_get_u32(cur
);
3815 unsigned int link
= 0;
3816 if ((cur
= tb
[TUNNEL_ATTR_LINK
])) {
3817 struct interface
*iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
3821 if (iface
->l3_dev
.dev
)
3822 link
= iface
->l3_dev
.dev
->ifindex
;
3825 if (!strcmp(str
, "sit"))
3826 return system_add_sit_tunnel(name
, link
, tb
);
3827 #ifdef IFLA_IPTUN_MAX
3828 else if (!strcmp(str
, "ipip6")) {
3829 return system_add_ip6_tunnel(name
, link
, tb
);
3830 } else if (!strcmp(str
, "greip")) {
3831 return system_add_gre_tunnel(name
, "gre", link
, tb
, false);
3832 } else if (!strcmp(str
, "gretapip")) {
3833 return system_add_gre_tunnel(name
, "gretap", link
, tb
, false);
3834 } else if (!strcmp(str
, "greip6")) {
3835 return system_add_gre_tunnel(name
, "ip6gre", link
, tb
, true);
3836 } else if (!strcmp(str
, "gretapip6")) {
3837 return system_add_gre_tunnel(name
, "ip6gretap", link
, tb
, true);
3839 } else if (!strcmp(str
, "vtiip")) {
3840 return system_add_vti_tunnel(name
, "vti", link
, tb
, false);
3841 } else if (!strcmp(str
, "vtiip6")) {
3842 return system_add_vti_tunnel(name
, "vti6", link
, tb
, true);
3844 #ifdef IFLA_XFRM_MAX
3845 } else if (!strcmp(str
, "xfrm")) {
3846 return system_add_xfrm_tunnel(name
, "xfrm", link
, tb
);
3848 #ifdef IFLA_VXLAN_MAX
3849 } else if(!strcmp(str
, "vxlan")) {
3850 return system_add_vxlan(name
, link
, tb
, false);
3851 } else if(!strcmp(str
, "vxlan6")) {
3852 return system_add_vxlan(name
, link
, tb
, true);
3855 } else if (!strcmp(str
, "ipip")) {
3856 return system_add_proto_tunnel(name
, IPPROTO_IPIP
, link
, tb
);