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_bpdu_filter(struct device
*dev
, const char *val
)
409 system_set_dev_sysctl("/sys/class/net/%s/brport/bpdu_filter", dev
->ifname
, val
);
412 static void system_bridge_set_isolated(struct device
*dev
, const char *val
)
414 system_set_dev_sysctl("/sys/class/net/%s/brport/isolated", dev
->ifname
, val
);
417 static void system_bridge_set_multicast_router(struct device
*dev
, const char *val
, bool bridge
)
419 system_set_dev_sysctl(bridge
? "/sys/class/net/%s/bridge/multicast_router" :
420 "/sys/class/net/%s/brport/multicast_router",
424 static void system_bridge_set_robustness(struct device
*dev
, const char *val
)
426 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_startup_query_count",
428 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_last_member_count",
432 static void system_bridge_set_query_interval(struct device
*dev
, const char *val
)
434 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_query_interval",
438 static void system_bridge_set_query_response_interval(struct device
*dev
, const char *val
)
440 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_query_response_interval",
444 static void system_bridge_set_last_member_interval(struct device
*dev
, const char *val
)
446 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_last_member_interval",
450 static void system_bridge_set_membership_interval(struct device
*dev
, const char *val
)
452 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_membership_interval",
456 static void system_bridge_set_other_querier_timeout(struct device
*dev
, const char *val
)
458 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier_interval",
462 static void system_bridge_set_startup_query_interval(struct device
*dev
, const char *val
)
464 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_startup_query_interval",
468 void system_bridge_set_stp_state(struct device
*dev
, bool val
)
470 const char *valstr
= val
? "1" : "0";
472 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/stp_state", dev
->ifname
, valstr
);
475 static void system_bridge_set_forward_delay(struct device
*dev
, const char *val
)
477 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/forward_delay", dev
->ifname
, val
);
480 static void system_bridge_set_priority(struct device
*dev
, const char *val
)
482 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/priority", dev
->ifname
, val
);
485 static void system_bridge_set_ageing_time(struct device
*dev
, const char *val
)
487 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/ageing_time", dev
->ifname
, val
);
490 static void system_bridge_set_hello_time(struct device
*dev
, const char *val
)
492 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/hello_time", dev
->ifname
, val
);
495 static void system_bridge_set_max_age(struct device
*dev
, const char *val
)
497 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/max_age", dev
->ifname
, val
);
500 static void system_bridge_set_learning(struct device
*dev
, const char *val
)
502 system_set_dev_sysctl("/sys/class/net/%s/brport/learning", dev
->ifname
, val
);
505 static void system_bridge_set_unicast_flood(struct device
*dev
, const char *val
)
507 system_set_dev_sysctl("/sys/class/net/%s/brport/unicast_flood", dev
->ifname
, val
);
510 static void system_bridge_set_vlan_filtering(struct device
*dev
, const char *val
)
512 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/vlan_filtering", dev
->ifname
, val
);
515 static int system_get_sysctl(const char *path
, char *buf
, const size_t buf_sz
)
517 int fd
= -1, ret
= -1;
519 fd
= open(path
, O_RDONLY
);
523 ssize_t len
= read(fd
, buf
, buf_sz
- 1);
537 system_get_dev_sysctl(const char *path
, const char *device
, char *buf
, const size_t buf_sz
)
539 snprintf(dev_buf
, sizeof(dev_buf
), path
, device
);
540 return system_get_sysctl(dev_buf
, buf
, buf_sz
);
543 static int system_get_disable_ipv6(struct device
*dev
, char *buf
, const size_t buf_sz
)
545 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6",
546 dev
->ifname
, buf
, buf_sz
);
549 static int system_get_ip6segmentrouting(struct device
*dev
, char *buf
, const size_t buf_sz
)
551 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/seg6_enabled",
552 dev
->ifname
, buf
, buf_sz
);
555 static int system_get_rpfilter(struct device
*dev
, char *buf
, const size_t buf_sz
)
557 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/rp_filter",
558 dev
->ifname
, buf
, buf_sz
);
561 static int system_get_acceptlocal(struct device
*dev
, char *buf
, const size_t buf_sz
)
563 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/accept_local",
564 dev
->ifname
, buf
, buf_sz
);
567 static int system_get_igmpversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
569 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/force_igmp_version",
570 dev
->ifname
, buf
, buf_sz
);
573 static int system_get_mldversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
575 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/force_mld_version",
576 dev
->ifname
, buf
, buf_sz
);
579 static int system_get_neigh4reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
581 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/base_reachable_time_ms",
582 dev
->ifname
, buf
, buf_sz
);
585 static int system_get_neigh6reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
587 return system_get_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/base_reachable_time_ms",
588 dev
->ifname
, buf
, buf_sz
);
591 static int system_get_neigh4gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
593 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/gc_stale_time",
594 dev
->ifname
, buf
, buf_sz
);
597 static int system_get_neigh6gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
599 return system_get_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/gc_stale_time",
600 dev
->ifname
, buf
, buf_sz
);
603 static int system_get_neigh4locktime(struct device
*dev
, char *buf
, const size_t buf_sz
)
605 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/locktime",
606 dev
->ifname
, buf
, buf_sz
);
609 static int system_get_dadtransmits(struct device
*dev
, char *buf
, const size_t buf_sz
)
611 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/dad_transmits",
612 dev
->ifname
, buf
, buf_sz
);
615 static int system_get_sendredirects(struct device
*dev
, char *buf
, const size_t buf_sz
)
617 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/send_redirects",
618 dev
->ifname
, buf
, buf_sz
);
622 static int system_get_drop_v4_unicast_in_l2_multicast(struct device
*dev
, char *buf
, const size_t buf_sz
)
624 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/drop_unicast_in_l2_multicast",
625 dev
->ifname
, buf
, buf_sz
);
628 static int system_get_drop_v6_unicast_in_l2_multicast(struct device
*dev
, char *buf
, const size_t buf_sz
)
630 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/drop_unicast_in_l2_multicast",
631 dev
->ifname
, buf
, buf_sz
);
634 static int system_get_drop_gratuitous_arp(struct device
*dev
, char *buf
, const size_t buf_sz
)
636 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/drop_gratuitous_arp",
637 dev
->ifname
, buf
, buf_sz
);
640 static int system_get_drop_unsolicited_na(struct device
*dev
, char *buf
, const size_t buf_sz
)
642 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/drop_unsolicited_na",
643 dev
->ifname
, buf
, buf_sz
);
646 static int system_get_arp_accept(struct device
*dev
, char *buf
, const size_t buf_sz
)
648 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/arp_accept",
649 dev
->ifname
, buf
, buf_sz
);
652 /* Evaluate netlink messages */
653 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
)
655 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
656 struct nlattr
*nla
[__IFLA_MAX
];
660 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
663 nlmsg_parse(nh
, sizeof(struct ifinfomsg
), nla
, __IFLA_MAX
- 1, NULL
);
664 if (!nla
[IFLA_IFNAME
])
667 struct device
*dev
= device_find(nla_data(nla
[IFLA_IFNAME
]));
671 if (!system_get_dev_sysctl("/sys/class/net/%s/carrier", dev
->ifname
, buf
, sizeof(buf
)))
672 link_state
= strtoul(buf
, NULL
, 0);
674 if (dev
->type
== &simple_device_type
)
675 device_set_present(dev
, true);
677 device_set_link(dev
, link_state
? true : false);
684 handle_hotplug_msg(char *data
, int size
)
686 const char *subsystem
= NULL
, *interface
= NULL
, *interface_old
= NULL
;
687 char *cur
, *end
, *sep
;
691 if (!strncmp(data
, "add@", 4) || !strncmp(data
, "move@", 5))
693 else if (!strncmp(data
, "remove@", 7))
698 skip
= strlen(data
) + 1;
701 for (cur
= data
+ skip
; cur
< end
; cur
+= skip
) {
702 skip
= strlen(cur
) + 1;
704 sep
= strchr(cur
, '=');
709 if (!strcmp(cur
, "INTERFACE"))
711 else if (!strcmp(cur
, "SUBSYSTEM")) {
713 if (strcmp(subsystem
, "net") != 0)
715 } else if (!strcmp(cur
, "DEVPATH_OLD")) {
716 interface_old
= strrchr(sep
+ 1, '/');
722 if (!subsystem
|| !interface
)
726 device_hotplug_event(interface_old
, false);
728 device_hotplug_event(interface
, add
);
732 handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
)
734 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
735 struct sockaddr_nl nla
;
736 unsigned char *buf
= NULL
;
739 socklen_t errlen
= sizeof(err
);
742 while ((size
= nl_recv(ev
->sock
, &nla
, &buf
, NULL
)) > 0) {
744 handle_hotplug_msg((char *) buf
, size
);
751 if (getsockopt(u
->fd
, SOL_SOCKET
, SO_ERROR
, (void *)&err
, &errlen
))
756 /* Increase rx buffer size on netlink socket */
758 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
769 uloop_fd_delete(&ev
->uloop
);
773 static int system_rtnl_call(struct nl_msg
*msg
)
777 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
783 return nl_wait_for_ack(sock_rtnl
);
786 int system_bridge_delbr(struct device
*bridge
)
788 return ioctl(sock_ioctl
, SIOCBRDELBR
, bridge
->ifname
);
791 static int system_bridge_if(const char *bridge
, struct device
*dev
, int cmd
, void *data
)
795 memset(&ifr
, 0, sizeof(ifr
));
797 ifr
.ifr_ifindex
= dev
->ifindex
;
800 strncpy(ifr
.ifr_name
, bridge
, sizeof(ifr
.ifr_name
) - 1);
801 return ioctl(sock_ioctl
, cmd
, &ifr
);
804 static bool system_is_bridge(const char *name
, char *buf
, int buflen
)
808 snprintf(buf
, buflen
, "/sys/devices/virtual/net/%s/bridge", name
);
809 if (stat(buf
, &st
) < 0)
815 static char *system_get_bridge(const char *name
, char *buf
, int buflen
)
821 snprintf(buf
, buflen
, "/sys/devices/virtual/net/*/brif/%s/bridge", name
);
822 if (glob(buf
, GLOB_NOSORT
, NULL
, &gl
) < 0)
826 len
= readlink(gl
.gl_pathv
[0], buf
, buflen
);
834 path
= strrchr(buf
, '/');
842 system_bridge_set_wireless(struct device
*bridge
, struct device
*dev
)
844 bool mcast_to_ucast
= dev
->wireless_ap
;
847 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
&&
848 !bridge
->settings
.multicast_to_unicast
)
849 mcast_to_ucast
= false;
851 if (!mcast_to_ucast
|| dev
->wireless_isolate
)
854 system_bridge_set_multicast_to_unicast(dev
, mcast_to_ucast
? "1" : "0");
855 system_bridge_set_hairpin_mode(dev
, hairpin
? "1" : "0");
858 int system_bridge_addif(struct device
*bridge
, struct device
*dev
)
867 oldbr
= system_get_bridge(dev
->ifname
, dev_buf
, sizeof(dev_buf
));
868 if (!oldbr
|| strcmp(oldbr
, bridge
->ifname
) != 0) {
869 ret
= system_bridge_if(bridge
->ifname
, dev
, SIOCBRADDIF
, NULL
);
871 D(SYSTEM
, "Failed to add device '%s' to bridge '%s' (tries=%d): %s\n",
872 dev
->ifname
, bridge
->ifname
, tries
, strerror(errno
));
878 system_bridge_set_wireless(bridge
, dev
);
880 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
881 snprintf(buf
, sizeof(buf
), "%u", dev
->settings
.multicast_router
);
882 system_bridge_set_multicast_router(dev
, buf
, false);
885 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
&&
886 dev
->settings
.multicast_fast_leave
)
887 system_bridge_set_multicast_fast_leave(dev
, "1");
889 if (dev
->settings
.flags
& DEV_OPT_LEARNING
&&
890 !dev
->settings
.learning
)
891 system_bridge_set_learning(dev
, "0");
893 if (dev
->settings
.flags
& DEV_OPT_UNICAST_FLOOD
&&
894 !dev
->settings
.unicast_flood
)
895 system_bridge_set_unicast_flood(dev
, "0");
897 if (dev
->settings
.flags
& DEV_OPT_ISOLATE
&&
898 dev
->settings
.isolate
)
899 system_bridge_set_isolated(dev
, "1");
901 if (dev
->bpdu_filter
)
902 system_bridge_set_bpdu_filter(dev
, dev
->bpdu_filter
? "1" : "0");
907 int system_bridge_delif(struct device
*bridge
, struct device
*dev
)
909 return system_bridge_if(bridge
->ifname
, dev
, SIOCBRDELIF
, NULL
);
912 int system_bridge_vlan(const char *iface
, uint16_t vid
, bool add
, unsigned int vflags
)
914 struct ifinfomsg ifi
= { .ifi_family
= PF_BRIDGE
, };
915 struct bridge_vlan_info vinfo
= { .vid
= vid
, };
916 unsigned short flags
= 0;
917 struct nlattr
*afspec
;
921 ifi
.ifi_index
= if_nametoindex(iface
);
925 nlm
= nlmsg_alloc_simple(add
? RTM_SETLINK
: RTM_DELLINK
, NLM_F_REQUEST
);
929 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
931 if (vflags
& BRVLAN_F_SELF
)
932 flags
|= BRIDGE_FLAGS_SELF
;
934 if (vflags
& BRVLAN_F_PVID
)
935 vinfo
.flags
|= BRIDGE_VLAN_INFO_PVID
;
937 if (vflags
& BRVLAN_F_UNTAGGED
)
938 vinfo
.flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
940 afspec
= nla_nest_start(nlm
, IFLA_AF_SPEC
);
947 nla_put_u16(nlm
, IFLA_BRIDGE_FLAGS
, flags
);
949 nla_put(nlm
, IFLA_BRIDGE_VLAN_INFO
, sizeof(vinfo
), &vinfo
);
950 nla_nest_end(nlm
, afspec
);
952 return system_rtnl_call(nlm
);
959 int system_if_resolve(struct device
*dev
)
963 memset(&ifr
, 0, sizeof(ifr
));
964 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
965 if (!ioctl(sock_ioctl
, SIOCGIFINDEX
, &ifr
))
966 return ifr
.ifr_ifindex
;
971 static int system_if_flags(const char *ifname
, unsigned add
, unsigned rem
)
975 memset(&ifr
, 0, sizeof(ifr
));
976 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
977 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) < 0)
980 ifr
.ifr_flags
|= add
;
981 ifr
.ifr_flags
&= ~rem
;
982 return ioctl(sock_ioctl
, SIOCSIFFLAGS
, &ifr
);
994 static bool check_ifaddr(struct nlmsghdr
*hdr
, int ifindex
)
996 struct ifaddrmsg
*ifa
= NLMSG_DATA(hdr
);
998 return ifa
->ifa_index
== ifindex
;
1001 static bool check_route(struct nlmsghdr
*hdr
, int ifindex
)
1003 struct rtmsg
*r
= NLMSG_DATA(hdr
);
1004 struct nlattr
*tb
[__RTA_MAX
];
1006 if (r
->rtm_protocol
== RTPROT_KERNEL
&&
1007 r
->rtm_family
== AF_INET6
)
1010 nlmsg_parse(hdr
, sizeof(struct rtmsg
), tb
, __RTA_MAX
- 1, NULL
);
1014 return *(int *)RTA_DATA(tb
[RTA_OIF
]) == ifindex
;
1017 static bool check_rule(struct nlmsghdr
*hdr
, int ifindex
)
1022 static int cb_clear_event(struct nl_msg
*msg
, void *arg
)
1024 struct clear_data
*clr
= arg
;
1025 struct nlmsghdr
*hdr
= nlmsg_hdr(msg
);
1026 bool (*cb
)(struct nlmsghdr
*, int ifindex
);
1032 if (hdr
->nlmsg_type
!= RTM_NEWADDR
)
1038 type
= RTM_DELROUTE
;
1039 if (hdr
->nlmsg_type
!= RTM_NEWROUTE
)
1046 if (hdr
->nlmsg_type
!= RTM_NEWRULE
)
1055 if (!cb(hdr
, clr
->dev
? clr
->dev
->ifindex
: 0))
1058 if (type
== RTM_DELRULE
)
1059 D(SYSTEM
, "Remove a rule\n");
1061 D(SYSTEM
, "Remove %s from device %s\n",
1062 type
== RTM_DELADDR
? "an address" : "a route",
1065 memcpy(nlmsg_hdr(clr
->msg
), hdr
, hdr
->nlmsg_len
);
1066 hdr
= nlmsg_hdr(clr
->msg
);
1067 hdr
->nlmsg_type
= type
;
1068 hdr
->nlmsg_flags
= NLM_F_REQUEST
;
1070 nl_socket_disable_auto_ack(sock_rtnl
);
1071 ret
= nl_send_auto_complete(sock_rtnl
, clr
->msg
);
1073 if (type
== RTM_DELRULE
)
1074 D(SYSTEM
, "Error deleting a rule: %d\n", ret
);
1076 D(SYSTEM
, "Error deleting %s from device '%s': %d\n",
1077 type
== RTM_DELADDR
? "an address" : "a route",
1078 clr
->dev
->ifname
, ret
);
1081 nl_socket_enable_auto_ack(sock_rtnl
);
1087 cb_finish_event(struct nl_msg
*msg
, void *arg
)
1095 error_handler(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1098 *pending
= err
->error
;
1103 system_if_clear_entries(struct device
*dev
, int type
, int af
)
1105 struct clear_data clr
;
1107 struct rtmsg rtm
= {
1109 .rtm_flags
= RTM_F_CLONED
,
1111 int flags
= NLM_F_DUMP
;
1120 clr
.size
= sizeof(struct rtgenmsg
);
1123 clr
.size
= sizeof(struct rtmsg
);
1129 cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1133 clr
.msg
= nlmsg_alloc_simple(type
, flags
);
1137 nlmsg_append(clr
.msg
, &rtm
, clr
.size
, 0);
1138 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_clear_event
, &clr
);
1139 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, cb_finish_event
, &pending
);
1140 nl_cb_err(cb
, NL_CB_CUSTOM
, error_handler
, &pending
);
1142 if (nl_send_auto_complete(sock_rtnl
, clr
.msg
) < 0)
1146 nl_recvmsgs(sock_rtnl
, cb
);
1149 nlmsg_free(clr
.msg
);
1155 * Clear bridge (membership) state and bring down device
1157 void system_if_clear_state(struct device
*dev
)
1159 static char buf
[256];
1161 device_set_ifindex(dev
, system_if_resolve(dev
));
1163 if (dev
->external
|| !dev
->ifindex
)
1166 system_if_flags(dev
->ifname
, 0, IFF_UP
);
1168 if (system_is_bridge(dev
->ifname
, buf
, sizeof(buf
))) {
1169 D(SYSTEM
, "Delete existing bridge named '%s'\n", dev
->ifname
);
1170 system_bridge_delbr(dev
);
1174 bridge
= system_get_bridge(dev
->ifname
, buf
, sizeof(buf
));
1176 D(SYSTEM
, "Remove device '%s' from bridge '%s'\n", dev
->ifname
, bridge
);
1177 system_bridge_if(bridge
, dev
, SIOCBRDELIF
, NULL
);
1180 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET
);
1181 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET
);
1182 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET6
);
1183 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET6
);
1184 system_if_clear_entries(dev
, RTM_GETNEIGH
, AF_INET
);
1185 system_if_clear_entries(dev
, RTM_GETNEIGH
, AF_INET6
);
1186 system_set_disable_ipv6(dev
, "0");
1189 static inline unsigned long
1190 sec_to_jiffies(int val
)
1192 return (unsigned long) val
* 100;
1195 static void system_bridge_conf_multicast_deps(struct device
*bridge
,
1196 struct bridge_config
*cfg
,
1202 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
||
1203 cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
||
1204 cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
1205 val
= cfg
->robustness
* cfg
->query_interval
+
1206 cfg
->query_response_interval
;
1208 snprintf(buf
, buf_len
, "%i", val
);
1209 system_bridge_set_membership_interval(bridge
, buf
);
1211 val
= cfg
->robustness
* cfg
->query_interval
+
1212 cfg
->query_response_interval
/ 2;
1214 snprintf(buf
, buf_len
, "%i", val
);
1215 system_bridge_set_other_querier_timeout(bridge
, buf
);
1218 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1219 val
= cfg
->query_interval
/ 4;
1221 snprintf(buf
, buf_len
, "%i", val
);
1222 system_bridge_set_startup_query_interval(bridge
, buf
);
1226 static void system_bridge_conf_multicast(struct device
*bridge
,
1227 struct bridge_config
*cfg
,
1231 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_snooping",
1232 bridge
->ifname
, cfg
->igmp_snoop
? "1" : "0");
1234 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier",
1235 bridge
->ifname
, cfg
->multicast_querier
? "1" : "0");
1237 snprintf(buf
, buf_len
, "%i", cfg
->hash_max
);
1238 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/hash_max",
1239 bridge
->ifname
, buf
);
1241 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
1242 snprintf(buf
, buf_len
, "%u", bridge
->settings
.multicast_router
);
1243 system_bridge_set_multicast_router(bridge
, buf
, true);
1246 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
) {
1247 snprintf(buf
, buf_len
, "%i", cfg
->robustness
);
1248 system_bridge_set_robustness(bridge
, buf
);
1251 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1252 snprintf(buf
, buf_len
, "%i", cfg
->query_interval
);
1253 system_bridge_set_query_interval(bridge
, buf
);
1256 if (cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
1257 snprintf(buf
, buf_len
, "%i", cfg
->query_response_interval
);
1258 system_bridge_set_query_response_interval(bridge
, buf
);
1261 if (cfg
->flags
& BRIDGE_OPT_LAST_MEMBER_INTERVAL
) {
1262 snprintf(buf
, buf_len
, "%i", cfg
->last_member_interval
);
1263 system_bridge_set_last_member_interval(bridge
, buf
);
1266 system_bridge_conf_multicast_deps(bridge
, cfg
, buf
, buf_len
);
1269 int system_bridge_addbr(struct device
*bridge
, struct bridge_config
*cfg
)
1273 if (ioctl(sock_ioctl
, SIOCBRADDBR
, bridge
->ifname
) < 0)
1276 system_bridge_set_stp_state(bridge
, cfg
->stp
);
1278 snprintf(buf
, sizeof(buf
), "%lu", sec_to_jiffies(cfg
->forward_delay
));
1279 system_bridge_set_forward_delay(bridge
, buf
);
1281 system_bridge_conf_multicast(bridge
, cfg
, buf
, sizeof(buf
));
1282 system_bridge_set_vlan_filtering(bridge
, cfg
->vlan_filtering
? "1" : "0");
1284 snprintf(buf
, sizeof(buf
), "%d", cfg
->priority
);
1285 system_bridge_set_priority(bridge
, buf
);
1287 snprintf(buf
, sizeof(buf
), "%lu", sec_to_jiffies(cfg
->hello_time
));
1288 system_bridge_set_hello_time(bridge
, buf
);
1290 snprintf(buf
, sizeof(buf
), "%lu", sec_to_jiffies(cfg
->max_age
));
1291 system_bridge_set_max_age(bridge
, buf
);
1293 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
) {
1294 snprintf(buf
, sizeof(buf
), "%lu", sec_to_jiffies(cfg
->ageing_time
));
1295 system_bridge_set_ageing_time(bridge
, buf
);
1301 int system_macvlan_add(struct device
*macvlan
, struct device
*dev
, struct macvlan_config
*cfg
)
1304 struct nlattr
*linkinfo
, *data
;
1305 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
1307 static const struct {
1309 enum macvlan_mode val
;
1311 { "private", MACVLAN_MODE_PRIVATE
},
1312 { "vepa", MACVLAN_MODE_VEPA
},
1313 { "bridge", MACVLAN_MODE_BRIDGE
},
1314 { "passthru", MACVLAN_MODE_PASSTHRU
},
1317 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1322 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1324 if (cfg
->flags
& MACVLAN_OPT_MACADDR
)
1325 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1326 nla_put_string(msg
, IFLA_IFNAME
, macvlan
->ifname
);
1327 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1329 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1330 goto nla_put_failure
;
1332 nla_put_string(msg
, IFLA_INFO_KIND
, "macvlan");
1334 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1335 goto nla_put_failure
;
1338 for (i
= 0; i
< ARRAY_SIZE(modes
); i
++) {
1339 if (strcmp(cfg
->mode
, modes
[i
].name
) != 0)
1342 nla_put_u32(msg
, IFLA_MACVLAN_MODE
, modes
[i
].val
);
1347 nla_nest_end(msg
, data
);
1348 nla_nest_end(msg
, linkinfo
);
1350 rv
= system_rtnl_call(msg
);
1352 D(SYSTEM
, "Error adding macvlan '%s' over '%s': %d\n", macvlan
->ifname
, dev
->ifname
, rv
);
1361 int system_link_netns_move(struct device
*dev
, int netns_fd
, const char *target_ifname
)
1364 struct ifinfomsg iim
= {
1365 .ifi_family
= AF_UNSPEC
,
1371 iim
.ifi_index
= system_if_resolve(dev
);
1372 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
);
1377 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1379 nla_put_string(msg
, IFLA_IFNAME
, target_ifname
);
1381 nla_put_u32(msg
, IFLA_NET_NS_FD
, netns_fd
);
1382 return system_rtnl_call(msg
);
1385 static int system_link_del(const char *ifname
)
1388 struct ifinfomsg iim
= {
1389 .ifi_family
= AF_UNSPEC
,
1393 msg
= nlmsg_alloc_simple(RTM_DELLINK
, NLM_F_REQUEST
);
1398 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1399 nla_put_string(msg
, IFLA_IFNAME
, ifname
);
1400 return system_rtnl_call(msg
);
1403 int system_macvlan_del(struct device
*macvlan
)
1405 return system_link_del(macvlan
->ifname
);
1408 int system_netns_open(const pid_t target_ns
)
1410 char pid_net_path
[PATH_MAX
];
1412 snprintf(pid_net_path
, sizeof(pid_net_path
), "/proc/%u/ns/net", target_ns
);
1414 return open(pid_net_path
, O_RDONLY
);
1417 int system_netns_set(int netns_fd
)
1419 return setns(netns_fd
, CLONE_NEWNET
);
1422 int system_veth_add(struct device
*veth
, struct veth_config
*cfg
)
1425 struct ifinfomsg empty_iim
= {};
1426 struct nlattr
*linkinfo
, *data
, *veth_info
;
1429 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1434 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1436 if (cfg
->flags
& VETH_OPT_MACADDR
)
1437 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1438 nla_put_string(msg
, IFLA_IFNAME
, veth
->ifname
);
1440 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1441 goto nla_put_failure
;
1443 nla_put_string(msg
, IFLA_INFO_KIND
, "veth");
1445 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1446 goto nla_put_failure
;
1448 if (!(veth_info
= nla_nest_start(msg
, VETH_INFO_PEER
)))
1449 goto nla_put_failure
;
1451 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1453 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1454 nla_put_string(msg
, IFLA_IFNAME
, cfg
->peer_name
);
1455 if (cfg
->flags
& VETH_OPT_PEER_MACADDR
)
1456 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->peer_macaddr
), cfg
->peer_macaddr
);
1458 nla_nest_end(msg
, veth_info
);
1459 nla_nest_end(msg
, data
);
1460 nla_nest_end(msg
, linkinfo
);
1462 rv
= system_rtnl_call(msg
);
1464 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1465 D(SYSTEM
, "Error adding veth '%s' with peer '%s': %d\n", veth
->ifname
, cfg
->peer_name
, rv
);
1467 D(SYSTEM
, "Error adding veth '%s': %d\n", veth
->ifname
, rv
);
1477 int system_veth_del(struct device
*veth
)
1479 return system_link_del(veth
->ifname
);
1482 static int system_vlan(struct device
*dev
, int id
)
1484 struct vlan_ioctl_args ifr
= {
1485 .cmd
= SET_VLAN_NAME_TYPE_CMD
,
1486 .u
.name_type
= VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
,
1489 if (ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
) < 0)
1493 ifr
.cmd
= DEL_VLAN_CMD
;
1496 ifr
.cmd
= ADD_VLAN_CMD
;
1499 strncpy(ifr
.device1
, dev
->ifname
, sizeof(ifr
.device1
));
1500 return ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
1503 int system_vlan_add(struct device
*dev
, int id
)
1505 return system_vlan(dev
, id
);
1508 int system_vlan_del(struct device
*dev
)
1510 return system_vlan(dev
, -1);
1513 int system_vlandev_add(struct device
*vlandev
, struct device
*dev
, struct vlandev_config
*cfg
)
1516 struct nlattr
*linkinfo
, *data
, *qos
;
1517 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
};
1518 struct vlan_qos_mapping
*elem
;
1519 struct ifla_vlan_qos_mapping nl_qos_map
;
1522 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1527 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1528 nla_put_string(msg
, IFLA_IFNAME
, vlandev
->ifname
);
1529 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1531 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1532 goto nla_put_failure
;
1534 nla_put_string(msg
, IFLA_INFO_KIND
, "vlan");
1536 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1537 goto nla_put_failure
;
1539 nla_put_u16(msg
, IFLA_VLAN_ID
, cfg
->vid
);
1541 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
1542 nla_put_u16(msg
, IFLA_VLAN_PROTOCOL
, htons(cfg
->proto
));
1544 if(cfg
->proto
== VLAN_PROTO_8021AD
)
1545 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
);
1548 if (!(qos
= nla_nest_start(msg
, IFLA_VLAN_INGRESS_QOS
)))
1549 goto nla_put_failure
;
1551 vlist_simple_for_each_element(&cfg
->ingress_qos_mapping_list
, elem
, node
) {
1552 nl_qos_map
.from
= elem
->from
;
1553 nl_qos_map
.to
= elem
->to
;
1554 nla_put(msg
, IFLA_VLAN_QOS_MAPPING
, sizeof(nl_qos_map
), &nl_qos_map
);
1556 nla_nest_end(msg
, qos
);
1558 if (!(qos
= nla_nest_start(msg
, IFLA_VLAN_EGRESS_QOS
)))
1559 goto nla_put_failure
;
1561 vlist_simple_for_each_element(&cfg
->egress_qos_mapping_list
, elem
, node
) {
1562 nl_qos_map
.from
= elem
->from
;
1563 nl_qos_map
.to
= elem
->to
;
1564 nla_put(msg
, IFLA_VLAN_QOS_MAPPING
, sizeof(nl_qos_map
), &nl_qos_map
);
1566 nla_nest_end(msg
, qos
);
1568 nla_nest_end(msg
, data
);
1569 nla_nest_end(msg
, linkinfo
);
1571 rv
= system_rtnl_call(msg
);
1573 D(SYSTEM
, "Error adding vlandev '%s' over '%s': %d\n", vlandev
->ifname
, dev
->ifname
, rv
);
1582 int system_vlandev_del(struct device
*vlandev
)
1584 return system_link_del(vlandev
->ifname
);
1588 system_set_ethtool_settings(struct device
*dev
, struct device_settings
*s
)
1590 struct ethtool_cmd ecmd
= {
1591 .cmd
= ETHTOOL_GSET
,
1593 struct ifreq ifr
= {
1594 .ifr_data
= (caddr_t
)&ecmd
,
1596 static const struct {
1601 { 10, ETHTOOL_LINK_MODE_10baseT_Half_BIT
, ETHTOOL_LINK_MODE_10baseT_Full_BIT
},
1602 { 100, ETHTOOL_LINK_MODE_100baseT_Half_BIT
, ETHTOOL_LINK_MODE_100baseT_Full_BIT
},
1603 { 1000, ETHTOOL_LINK_MODE_1000baseT_Half_BIT
, ETHTOOL_LINK_MODE_1000baseT_Full_BIT
},
1608 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1610 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0)
1613 adv
= ecmd
.supported
;
1614 for (i
= 0; i
< ARRAY_SIZE(speed_mask
); i
++) {
1615 if (s
->flags
& DEV_OPT_DUPLEX
) {
1616 int bit
= s
->duplex
? speed_mask
[i
].bit_half
: speed_mask
[i
].bit_full
;
1620 if (!(s
->flags
& DEV_OPT_SPEED
) ||
1621 s
->speed
== speed_mask
[i
].speed
)
1624 adv
&= ~(1 << speed_mask
[i
].bit_full
);
1625 adv
&= ~(1 << speed_mask
[i
].bit_half
);
1629 if (ecmd
.autoneg
&& ecmd
.advertising
== adv
)
1633 ecmd
.advertising
= adv
;
1634 ecmd
.cmd
= ETHTOOL_SSET
;
1635 ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
);
1639 system_if_get_settings(struct device
*dev
, struct device_settings
*s
)
1644 memset(&ifr
, 0, sizeof(ifr
));
1645 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1647 if (ioctl(sock_ioctl
, SIOCGIFMTU
, &ifr
) == 0) {
1648 s
->mtu
= ifr
.ifr_mtu
;
1649 s
->flags
|= DEV_OPT_MTU
;
1652 s
->mtu6
= system_update_ipv6_mtu(dev
, 0);
1654 s
->flags
|= DEV_OPT_MTU6
;
1656 if (ioctl(sock_ioctl
, SIOCGIFTXQLEN
, &ifr
) == 0) {
1657 s
->txqueuelen
= ifr
.ifr_qlen
;
1658 s
->flags
|= DEV_OPT_TXQUEUELEN
;
1661 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0) {
1662 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
1663 s
->flags
|= DEV_OPT_MACADDR
;
1666 if (!system_get_disable_ipv6(dev
, buf
, sizeof(buf
))) {
1667 s
->ipv6
= !strtoul(buf
, NULL
, 0);
1668 s
->flags
|= DEV_OPT_IPV6
;
1671 if (!system_get_ip6segmentrouting(dev
, buf
, sizeof(buf
))) {
1672 s
->ip6segmentrouting
= strtoul(buf
, NULL
, 0);
1673 s
->flags
|= DEV_OPT_IP6SEGMENTROUTING
;
1676 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) == 0) {
1677 s
->promisc
= ifr
.ifr_flags
& IFF_PROMISC
;
1678 s
->flags
|= DEV_OPT_PROMISC
;
1680 s
->multicast
= ifr
.ifr_flags
& IFF_MULTICAST
;
1681 s
->flags
|= DEV_OPT_MULTICAST
;
1684 if (!system_get_rpfilter(dev
, buf
, sizeof(buf
))) {
1685 s
->rpfilter
= strtoul(buf
, NULL
, 0);
1686 s
->flags
|= DEV_OPT_RPFILTER
;
1689 if (!system_get_acceptlocal(dev
, buf
, sizeof(buf
))) {
1690 s
->acceptlocal
= strtoul(buf
, NULL
, 0);
1691 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
1694 if (!system_get_igmpversion(dev
, buf
, sizeof(buf
))) {
1695 s
->igmpversion
= strtoul(buf
, NULL
, 0);
1696 s
->flags
|= DEV_OPT_IGMPVERSION
;
1699 if (!system_get_mldversion(dev
, buf
, sizeof(buf
))) {
1700 s
->mldversion
= strtoul(buf
, NULL
, 0);
1701 s
->flags
|= DEV_OPT_MLDVERSION
;
1704 if (!system_get_neigh4reachabletime(dev
, buf
, sizeof(buf
))) {
1705 s
->neigh4reachabletime
= strtoul(buf
, NULL
, 0);
1706 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1709 if (!system_get_neigh6reachabletime(dev
, buf
, sizeof(buf
))) {
1710 s
->neigh6reachabletime
= strtoul(buf
, NULL
, 0);
1711 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1714 if (!system_get_neigh4locktime(dev
, buf
, sizeof(buf
))) {
1715 s
->neigh4locktime
= strtol(buf
, NULL
, 0);
1716 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
1719 if (!system_get_neigh4gcstaletime(dev
, buf
, sizeof(buf
))) {
1720 s
->neigh4gcstaletime
= strtoul(buf
, NULL
, 0);
1721 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1724 if (!system_get_neigh6gcstaletime(dev
, buf
, sizeof(buf
))) {
1725 s
->neigh6gcstaletime
= strtoul(buf
, NULL
, 0);
1726 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1729 if (!system_get_dadtransmits(dev
, buf
, sizeof(buf
))) {
1730 s
->dadtransmits
= strtoul(buf
, NULL
, 0);
1731 s
->flags
|= DEV_OPT_DADTRANSMITS
;
1734 if (!system_get_sendredirects(dev
, buf
, sizeof(buf
))) {
1735 s
->sendredirects
= strtoul(buf
, NULL
, 0);
1736 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
1739 if (!system_get_drop_v4_unicast_in_l2_multicast(dev
, buf
, sizeof(buf
))) {
1740 s
->drop_v4_unicast_in_l2_multicast
= strtoul(buf
, NULL
, 0);
1741 s
->flags
|= DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
;
1744 if (!system_get_drop_v6_unicast_in_l2_multicast(dev
, buf
, sizeof(buf
))) {
1745 s
->drop_v6_unicast_in_l2_multicast
= strtoul(buf
, NULL
, 0);
1746 s
->flags
|= DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
;
1749 if (!system_get_drop_gratuitous_arp(dev
, buf
, sizeof(buf
))) {
1750 s
->drop_gratuitous_arp
= strtoul(buf
, NULL
, 0);
1751 s
->flags
|= DEV_OPT_DROP_GRATUITOUS_ARP
;
1754 if (!system_get_drop_unsolicited_na(dev
, buf
, sizeof(buf
))) {
1755 s
->drop_unsolicited_na
= strtoul(buf
, NULL
, 0);
1756 s
->flags
|= DEV_OPT_DROP_UNSOLICITED_NA
;
1759 if (!system_get_arp_accept(dev
, buf
, sizeof(buf
))) {
1760 s
->arp_accept
= strtoul(buf
, NULL
, 0);
1761 s
->flags
|= DEV_OPT_ARP_ACCEPT
;
1766 system_if_apply_settings(struct device
*dev
, struct device_settings
*s
, uint64_t apply_mask
)
1771 apply_mask
&= s
->flags
;
1773 memset(&ifr
, 0, sizeof(ifr
));
1774 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1775 if (apply_mask
& DEV_OPT_MTU
) {
1776 ifr
.ifr_mtu
= s
->mtu
;
1777 if (ioctl(sock_ioctl
, SIOCSIFMTU
, &ifr
) < 0)
1778 s
->flags
&= ~DEV_OPT_MTU
;
1780 if (apply_mask
& DEV_OPT_MTU6
) {
1781 system_update_ipv6_mtu(dev
, s
->mtu6
);
1783 if (apply_mask
& DEV_OPT_TXQUEUELEN
) {
1784 ifr
.ifr_qlen
= s
->txqueuelen
;
1785 if (ioctl(sock_ioctl
, SIOCSIFTXQLEN
, &ifr
) < 0)
1786 s
->flags
&= ~DEV_OPT_TXQUEUELEN
;
1788 if ((apply_mask
& (DEV_OPT_MACADDR
| DEV_OPT_DEFAULT_MACADDR
)) && !dev
->external
) {
1789 ifr
.ifr_hwaddr
.sa_family
= ARPHRD_ETHER
;
1790 memcpy(&ifr
.ifr_hwaddr
.sa_data
, s
->macaddr
, sizeof(s
->macaddr
));
1791 if (ioctl(sock_ioctl
, SIOCSIFHWADDR
, &ifr
) < 0)
1792 s
->flags
&= ~DEV_OPT_MACADDR
;
1794 if (apply_mask
& DEV_OPT_IPV6
)
1795 system_set_disable_ipv6(dev
, s
->ipv6
? "0" : "1");
1796 if (s
->flags
& DEV_OPT_IP6SEGMENTROUTING
& apply_mask
) {
1797 struct device dummy
= {
1800 bool ip6segmentrouting
= device_check_ip6segmentrouting();
1802 system_set_ip6segmentrouting(dev
, s
->ip6segmentrouting
? "1" : "0");
1803 system_set_ip6segmentrouting(&dummy
, ip6segmentrouting
? "1" : "0");
1805 if (apply_mask
& DEV_OPT_PROMISC
) {
1806 if (system_if_flags(dev
->ifname
, s
->promisc
? IFF_PROMISC
: 0,
1807 !s
->promisc
? IFF_PROMISC
: 0) < 0)
1808 s
->flags
&= ~DEV_OPT_PROMISC
;
1810 if (apply_mask
& DEV_OPT_RPFILTER
) {
1811 snprintf(buf
, sizeof(buf
), "%u", s
->rpfilter
);
1812 system_set_rpfilter(dev
, buf
);
1814 if (apply_mask
& DEV_OPT_ACCEPTLOCAL
)
1815 system_set_acceptlocal(dev
, s
->acceptlocal
? "1" : "0");
1816 if (apply_mask
& DEV_OPT_IGMPVERSION
) {
1817 snprintf(buf
, sizeof(buf
), "%u", s
->igmpversion
);
1818 system_set_igmpversion(dev
, buf
);
1820 if (apply_mask
& DEV_OPT_MLDVERSION
) {
1821 snprintf(buf
, sizeof(buf
), "%u", s
->mldversion
);
1822 system_set_mldversion(dev
, buf
);
1824 if (apply_mask
& DEV_OPT_NEIGHREACHABLETIME
) {
1825 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4reachabletime
);
1826 system_set_neigh4reachabletime(dev
, buf
);
1827 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6reachabletime
);
1828 system_set_neigh6reachabletime(dev
, buf
);
1830 if (apply_mask
& DEV_OPT_NEIGHLOCKTIME
) {
1831 snprintf(buf
, sizeof(buf
), "%d", s
->neigh4locktime
);
1832 system_set_neigh4locktime(dev
, buf
);
1834 if (apply_mask
& DEV_OPT_NEIGHGCSTALETIME
) {
1835 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4gcstaletime
);
1836 system_set_neigh4gcstaletime(dev
, buf
);
1837 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6gcstaletime
);
1838 system_set_neigh6gcstaletime(dev
, buf
);
1840 if (apply_mask
& DEV_OPT_DADTRANSMITS
) {
1841 snprintf(buf
, sizeof(buf
), "%u", s
->dadtransmits
);
1842 system_set_dadtransmits(dev
, buf
);
1844 if (apply_mask
& DEV_OPT_MULTICAST
) {
1845 if (system_if_flags(dev
->ifname
, s
->multicast
? IFF_MULTICAST
: 0,
1846 !s
->multicast
? IFF_MULTICAST
: 0) < 0)
1847 s
->flags
&= ~DEV_OPT_MULTICAST
;
1849 if (apply_mask
& DEV_OPT_SENDREDIRECTS
)
1850 system_set_sendredirects(dev
, s
->sendredirects
? "1" : "0");
1851 if (apply_mask
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
)
1852 system_set_drop_v4_unicast_in_l2_multicast(dev
, s
->drop_v4_unicast_in_l2_multicast
? "1" : "0");
1853 if (apply_mask
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
)
1854 system_set_drop_v6_unicast_in_l2_multicast(dev
, s
->drop_v6_unicast_in_l2_multicast
? "1" : "0");
1855 if (apply_mask
& DEV_OPT_DROP_GRATUITOUS_ARP
)
1856 system_set_drop_gratuitous_arp(dev
, s
->drop_gratuitous_arp
? "1" : "0");
1857 if (apply_mask
& DEV_OPT_DROP_UNSOLICITED_NA
)
1858 system_set_drop_unsolicited_na(dev
, s
->drop_unsolicited_na
? "1" : "0");
1859 if (apply_mask
& DEV_OPT_ARP_ACCEPT
)
1860 system_set_arp_accept(dev
, s
->arp_accept
? "1" : "0");
1861 system_set_ethtool_settings(dev
, s
);
1864 int system_if_up(struct device
*dev
)
1866 return system_if_flags(dev
->ifname
, IFF_UP
, 0);
1869 int system_if_down(struct device
*dev
)
1871 return system_if_flags(dev
->ifname
, 0, IFF_UP
);
1874 struct if_check_data
{
1880 #ifndef IFF_LOWER_UP
1881 #define IFF_LOWER_UP 0x10000
1884 static int cb_if_check_valid(struct nl_msg
*msg
, void *arg
)
1886 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
1887 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
1888 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1890 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
1893 if (chk
->dev
->type
== &simple_device_type
)
1894 device_set_present(chk
->dev
, ifi
->ifi_index
> 0 ? true : false);
1895 device_set_link(chk
->dev
, ifi
->ifi_flags
& IFF_LOWER_UP
? true : false);
1900 static int cb_if_check_ack(struct nl_msg
*msg
, void *arg
)
1902 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1907 static int cb_if_check_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1909 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1911 if (chk
->dev
->type
== &simple_device_type
)
1912 device_set_present(chk
->dev
, false);
1913 device_set_link(chk
->dev
, false);
1914 chk
->pending
= err
->error
;
1919 struct bridge_vlan_check_data
{
1920 struct device
*check_dev
;
1926 static void bridge_vlan_check_port(struct bridge_vlan_check_data
*data
,
1927 struct bridge_vlan_port
*port
,
1928 struct bridge_vlan_info
*vinfo
)
1930 uint16_t flags
= 0, diff
, mask
;
1932 if (port
->flags
& BRVLAN_F_PVID
)
1933 flags
|= BRIDGE_VLAN_INFO_PVID
;
1934 if (port
->flags
& BRVLAN_F_UNTAGGED
)
1935 flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
1937 diff
= vinfo
->flags
^ flags
;
1938 mask
= BRVLAN_F_UNTAGGED
| (flags
& BRIDGE_VLAN_INFO_PVID
);
1941 data
->pending
= false;
1947 static void bridge_vlan_check_attr(struct bridge_vlan_check_data
*data
,
1948 struct rtattr
*attr
)
1950 struct bridge_vlan_hotplug_port
*port
;
1951 struct bridge_vlan_info
*vinfo
;
1952 struct bridge_vlan
*vlan
;
1954 int rem
= RTA_PAYLOAD(attr
);
1957 for (cur
= RTA_DATA(attr
); RTA_OK(cur
, rem
); cur
= RTA_NEXT(cur
, rem
)) {
1958 if (cur
->rta_type
!= IFLA_BRIDGE_VLAN_INFO
)
1961 vinfo
= RTA_DATA(cur
);
1962 vlan
= vlist_find(&data
->check_dev
->vlans
, &vinfo
->vid
, vlan
, node
);
1965 data
->pending
= false;
1969 for (i
= 0; i
< vlan
->n_ports
; i
++)
1970 if (!vlan
->ports
[i
].check
)
1971 bridge_vlan_check_port(data
, &vlan
->ports
[i
], vinfo
);
1973 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
)
1974 if (!port
->port
.check
)
1975 bridge_vlan_check_port(data
, &port
->port
, vinfo
);
1979 static int bridge_vlan_check_cb(struct nl_msg
*msg
, void *arg
)
1981 struct bridge_vlan_check_data
*data
= arg
;
1982 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
1983 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
1984 struct rtattr
*attr
;
1987 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
1990 if (ifi
->ifi_family
!= AF_BRIDGE
)
1993 if (ifi
->ifi_index
!= data
->ifindex
)
1996 attr
= IFLA_RTA(ifi
);
1997 rem
= nh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*ifi
));
1998 while (RTA_OK(attr
, rem
)) {
1999 if (attr
->rta_type
== IFLA_AF_SPEC
)
2000 bridge_vlan_check_attr(data
, attr
);
2002 attr
= RTA_NEXT(attr
, rem
);
2008 static int bridge_vlan_ack_cb(struct nl_msg
*msg
, void *arg
)
2010 struct bridge_vlan_check_data
*data
= arg
;
2011 data
->pending
= false;
2015 static int bridge_vlan_error_cb(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
2017 struct bridge_vlan_check_data
*data
= arg
;
2018 data
->pending
= false;
2022 int system_bridge_vlan_check(struct device
*dev
, char *ifname
)
2024 struct bridge_vlan_check_data data
= {
2026 .ifindex
= if_nametoindex(ifname
),
2030 static struct ifinfomsg ifi
= {
2031 .ifi_family
= AF_BRIDGE
2033 static struct rtattr ext_req
= {
2034 .rta_type
= IFLA_EXT_MASK
,
2035 .rta_len
= RTA_LENGTH(sizeof(uint32_t)),
2037 uint32_t filter
= RTEXT_FILTER_BRVLAN
;
2038 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
2039 struct bridge_vlan
*vlan
;
2046 msg
= nlmsg_alloc_simple(RTM_GETLINK
, NLM_F_DUMP
);
2048 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
2049 nlmsg_append(msg
, &ext_req
, sizeof(ext_req
), NLMSG_ALIGNTO
) ||
2050 nlmsg_append(msg
, &filter
, sizeof(filter
), 0))
2053 vlist_for_each_element(&dev
->vlans
, vlan
, node
) {
2054 struct bridge_vlan_hotplug_port
*port
;
2056 for (i
= 0; i
< vlan
->n_ports
; i
++) {
2057 if (!strcmp(vlan
->ports
[i
].ifname
, ifname
))
2058 vlan
->ports
[i
].check
= 0;
2060 vlan
->ports
[i
].check
= -1;
2063 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
2064 if (!strcmp(port
->port
.ifname
, ifname
))
2065 port
->port
.check
= 0;
2067 port
->port
.check
= -1;
2071 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, bridge_vlan_check_cb
, &data
);
2072 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, bridge_vlan_ack_cb
, &data
);
2073 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, bridge_vlan_ack_cb
, &data
);
2074 nl_cb_err(cb
, NL_CB_CUSTOM
, bridge_vlan_error_cb
, &data
);
2076 if (nl_send_auto_complete(sock_rtnl
, msg
) < 0)
2080 while (data
.pending
)
2081 nl_recvmsgs(sock_rtnl
, cb
);
2083 vlist_for_each_element(&dev
->vlans
, vlan
, node
) {
2084 struct bridge_vlan_hotplug_port
*port
;
2086 for (i
= 0; i
< vlan
->n_ports
; i
++) {
2087 if (!vlan
->ports
[i
].check
) {
2093 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
2094 if (!port
->port
.check
) {
2110 int system_if_check(struct device
*dev
)
2112 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
2114 struct ifinfomsg ifi
= {
2115 .ifi_family
= AF_UNSPEC
,
2118 struct if_check_data chk
= {
2127 msg
= nlmsg_alloc_simple(RTM_GETLINK
, 0);
2131 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
2132 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
2135 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_check_valid
, &chk
);
2136 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_check_ack
, &chk
);
2137 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_check_error
, &chk
);
2139 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
2143 while (chk
.pending
> 0)
2144 nl_recvmsgs(sock_rtnl
, cb
);
2156 system_if_get_parent(struct device
*dev
)
2158 char buf
[64], *devname
;
2159 int ifindex
, iflink
, len
;
2162 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/iflink", dev
->ifname
);
2163 f
= fopen(buf
, "r");
2167 len
= fread(buf
, 1, sizeof(buf
) - 1, f
);
2174 iflink
= strtoul(buf
, NULL
, 0);
2175 ifindex
= system_if_resolve(dev
);
2176 if (!iflink
|| iflink
== ifindex
)
2179 devname
= if_indextoname(iflink
, buf
);
2183 return device_get(devname
, true);
2187 read_string_file(int dir_fd
, const char *file
, char *buf
, int len
)
2193 fd
= openat(dir_fd
, file
, O_RDONLY
);
2198 len
= read(fd
, buf
, len
- 1);
2202 } else if (len
> 0) {
2205 c
= strchr(buf
, '\n');
2218 read_uint64_file(int dir_fd
, const char *file
, uint64_t *val
)
2223 ret
= read_string_file(dir_fd
, file
, buf
, sizeof(buf
));
2225 *val
= strtoull(buf
, NULL
, 0);
2230 /* Assume advertised flags == supported flags */
2231 static const struct {
2234 } ethtool_link_modes
[] = {
2235 { ADVERTISED_10baseT_Half
, "10baseT-H" },
2236 { ADVERTISED_10baseT_Full
, "10baseT-F" },
2237 { ADVERTISED_100baseT_Half
, "100baseT-H" },
2238 { ADVERTISED_100baseT_Full
, "100baseT-F" },
2239 { ADVERTISED_1000baseT_Half
, "1000baseT-H" },
2240 { ADVERTISED_1000baseT_Full
, "1000baseT-F" },
2241 { ADVERTISED_1000baseKX_Full
, "1000baseKX-F" },
2242 { ADVERTISED_2500baseX_Full
, "2500baseX-F" },
2243 { ADVERTISED_10000baseT_Full
, "10000baseT-F" },
2244 { ADVERTISED_10000baseKX4_Full
, "10000baseKX4-F" },
2245 { ADVERTISED_10000baseKR_Full
, "10000baseKR-F" },
2246 { ADVERTISED_20000baseMLD2_Full
, "20000baseMLD2-F" },
2247 { ADVERTISED_20000baseKR2_Full
, "20000baseKR2-F" },
2248 { ADVERTISED_40000baseKR4_Full
, "40000baseKR4-F" },
2249 { ADVERTISED_40000baseCR4_Full
, "40000baseCR4-F" },
2250 { ADVERTISED_40000baseSR4_Full
, "40000baseSR4-F" },
2251 { ADVERTISED_40000baseLR4_Full
, "40000baseLR4-F" },
2252 #ifdef ADVERTISED_56000baseKR4_Full
2253 { ADVERTISED_56000baseKR4_Full
, "56000baseKR4-F" },
2254 { ADVERTISED_56000baseCR4_Full
, "56000baseCR4-F" },
2255 { ADVERTISED_56000baseSR4_Full
, "56000baseSR4-F" },
2256 { ADVERTISED_56000baseLR4_Full
, "56000baseLR4-F" },
2260 static void system_add_link_modes(struct blob_buf
*b
, __u32 mask
)
2263 for (i
= 0; i
< ARRAY_SIZE(ethtool_link_modes
); i
++) {
2264 if (mask
& ethtool_link_modes
[i
].mask
)
2265 blobmsg_add_string(b
, NULL
, ethtool_link_modes
[i
].name
);
2270 system_if_force_external(const char *ifname
)
2275 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/phy80211", ifname
);
2276 return stat(buf
, &s
) == 0;
2280 system_if_dump_info(struct device
*dev
, struct blob_buf
*b
)
2282 struct ethtool_cmd ecmd
;
2287 memset(&ecmd
, 0, sizeof(ecmd
));
2288 memset(&ifr
, 0, sizeof(ifr
));
2289 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2290 ifr
.ifr_data
= (caddr_t
) &ecmd
;
2291 ecmd
.cmd
= ETHTOOL_GSET
;
2293 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) == 0) {
2294 c
= blobmsg_open_array(b
, "link-advertising");
2295 system_add_link_modes(b
, ecmd
.advertising
);
2296 blobmsg_close_array(b
, c
);
2298 c
= blobmsg_open_array(b
, "link-partner-advertising");
2299 system_add_link_modes(b
, ecmd
.lp_advertising
);
2300 blobmsg_close_array(b
, c
);
2302 c
= blobmsg_open_array(b
, "link-supported");
2303 system_add_link_modes(b
, ecmd
.supported
);
2304 blobmsg_close_array(b
, c
);
2306 s
= blobmsg_alloc_string_buffer(b
, "speed", 8);
2307 snprintf(s
, 8, "%d%c", ethtool_cmd_speed(&ecmd
),
2308 ecmd
.duplex
== DUPLEX_HALF
? 'H' : 'F');
2309 blobmsg_add_string_buffer(b
);
2311 blobmsg_add_u8(b
, "autoneg", !!ecmd
.autoneg
);
2318 system_if_dump_stats(struct device
*dev
, struct blob_buf
*b
)
2320 const char *const counters
[] = {
2321 "collisions", "rx_frame_errors", "tx_compressed",
2322 "multicast", "rx_length_errors", "tx_dropped",
2323 "rx_bytes", "rx_missed_errors", "tx_errors",
2324 "rx_compressed", "rx_over_errors", "tx_fifo_errors",
2325 "rx_crc_errors", "rx_packets", "tx_heartbeat_errors",
2326 "rx_dropped", "tx_aborted_errors", "tx_packets",
2327 "rx_errors", "tx_bytes", "tx_window_errors",
2328 "rx_fifo_errors", "tx_carrier_errors",
2335 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/statistics", dev
->ifname
);
2336 stats_dir
= open(buf
, O_DIRECTORY
);
2340 for (i
= 0; i
< ARRAY_SIZE(counters
); i
++)
2341 if (read_uint64_file(stats_dir
, counters
[i
], &val
))
2342 blobmsg_add_u64(b
, counters
[i
], val
);
2348 static int system_addr(struct device
*dev
, struct device_addr
*addr
, int cmd
)
2350 bool v4
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
);
2351 int alen
= v4
? 4 : 16;
2352 unsigned int flags
= 0;
2353 struct ifaddrmsg ifa
= {
2354 .ifa_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2355 .ifa_prefixlen
= addr
->mask
,
2356 .ifa_index
= dev
->ifindex
,
2360 if (cmd
== RTM_NEWADDR
)
2361 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
2363 msg
= nlmsg_alloc_simple(cmd
, flags
);
2367 nlmsg_append(msg
, &ifa
, sizeof(ifa
), 0);
2368 nla_put(msg
, IFA_LOCAL
, alen
, &addr
->addr
);
2370 if (addr
->broadcast
)
2371 nla_put_u32(msg
, IFA_BROADCAST
, addr
->broadcast
);
2372 if (addr
->point_to_point
)
2373 nla_put_u32(msg
, IFA_ADDRESS
, addr
->point_to_point
);
2375 time_t now
= system_get_rtime();
2376 struct ifa_cacheinfo cinfo
= {0xffffffffU
, 0xffffffffU
, 0, 0};
2378 if (addr
->preferred_until
) {
2379 int64_t preferred
= addr
->preferred_until
- now
;
2382 else if (preferred
> UINT32_MAX
)
2383 preferred
= UINT32_MAX
;
2385 cinfo
.ifa_prefered
= preferred
;
2388 if (addr
->valid_until
) {
2389 int64_t valid
= addr
->valid_until
- now
;
2394 else if (valid
> UINT32_MAX
)
2397 cinfo
.ifa_valid
= valid
;
2400 nla_put(msg
, IFA_CACHEINFO
, sizeof(cinfo
), &cinfo
);
2402 if (cmd
== RTM_NEWADDR
&& (addr
->flags
& DEVADDR_OFFLINK
))
2403 nla_put_u32(msg
, IFA_FLAGS
, IFA_F_NOPREFIXROUTE
);
2406 return system_rtnl_call(msg
);
2409 int system_add_address(struct device
*dev
, struct device_addr
*addr
)
2411 return system_addr(dev
, addr
, RTM_NEWADDR
);
2414 int system_del_address(struct device
*dev
, struct device_addr
*addr
)
2416 return system_addr(dev
, addr
, RTM_DELADDR
);
2419 static int system_neigh(struct device
*dev
, struct device_neighbor
*neighbor
, int cmd
)
2421 int alen
= ((neighbor
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
2422 unsigned int flags
= 0;
2423 struct ndmsg ndm
= {
2424 .ndm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2425 .ndm_ifindex
= dev
->ifindex
,
2426 .ndm_state
= NUD_PERMANENT
,
2427 .ndm_flags
= (neighbor
->proxy
? NTF_PROXY
: 0) | (neighbor
->router
? NTF_ROUTER
: 0),
2431 if (cmd
== RTM_NEWNEIGH
)
2432 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
2434 msg
= nlmsg_alloc_simple(cmd
, flags
);
2439 nlmsg_append(msg
, &ndm
, sizeof(ndm
), 0);
2441 nla_put(msg
, NDA_DST
, alen
, &neighbor
->addr
);
2442 if (neighbor
->flags
& DEVNEIGH_MAC
)
2443 nla_put(msg
, NDA_LLADDR
, sizeof(neighbor
->macaddr
), &neighbor
->macaddr
);
2446 return system_rtnl_call(msg
);
2449 int system_add_neighbor(struct device
*dev
, struct device_neighbor
*neighbor
)
2451 return system_neigh(dev
, neighbor
, RTM_NEWNEIGH
);
2454 int system_del_neighbor(struct device
*dev
, struct device_neighbor
*neighbor
)
2456 return system_neigh(dev
, neighbor
, RTM_DELNEIGH
);
2459 static int system_rt(struct device
*dev
, struct device_route
*route
, int cmd
)
2461 int alen
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
2463 unsigned int flags
= 0;
2466 have_gw
= !!route
->nexthop
.in
.s_addr
;
2468 have_gw
= route
->nexthop
.in6
.s6_addr32
[0] ||
2469 route
->nexthop
.in6
.s6_addr32
[1] ||
2470 route
->nexthop
.in6
.s6_addr32
[2] ||
2471 route
->nexthop
.in6
.s6_addr32
[3];
2473 unsigned int table
= (route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))
2474 ? route
->table
: RT_TABLE_MAIN
;
2476 struct rtmsg rtm
= {
2477 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2478 .rtm_dst_len
= route
->mask
,
2479 .rtm_src_len
= route
->sourcemask
,
2480 .rtm_table
= (table
< 256) ? table
: RT_TABLE_UNSPEC
,
2481 .rtm_protocol
= (route
->flags
& DEVROUTE_PROTO
) ? route
->proto
: RTPROT_STATIC
,
2482 .rtm_scope
= RT_SCOPE_NOWHERE
,
2483 .rtm_type
= (cmd
== RTM_DELROUTE
) ? 0: RTN_UNICAST
,
2484 .rtm_flags
= (route
->flags
& DEVROUTE_ONLINK
) ? RTNH_F_ONLINK
: 0,
2488 if (cmd
== RTM_NEWROUTE
) {
2489 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
2491 if (!dev
) { /* Add null-route */
2492 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
2493 rtm
.rtm_type
= RTN_UNREACHABLE
;
2496 rtm
.rtm_scope
= (have_gw
) ? RT_SCOPE_UNIVERSE
: RT_SCOPE_LINK
;
2499 if (route
->flags
& DEVROUTE_TYPE
) {
2500 rtm
.rtm_type
= route
->type
;
2501 if (!(route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))) {
2502 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_BROADCAST
||
2503 rtm
.rtm_type
== RTN_NAT
|| rtm
.rtm_type
== RTN_ANYCAST
)
2504 rtm
.rtm_table
= RT_TABLE_LOCAL
;
2507 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_NAT
) {
2508 rtm
.rtm_scope
= RT_SCOPE_HOST
;
2509 } else if (rtm
.rtm_type
== RTN_BROADCAST
|| rtm
.rtm_type
== RTN_MULTICAST
||
2510 rtm
.rtm_type
== RTN_ANYCAST
) {
2511 rtm
.rtm_scope
= RT_SCOPE_LINK
;
2512 } else if (rtm
.rtm_type
== RTN_BLACKHOLE
|| rtm
.rtm_type
== RTN_UNREACHABLE
||
2513 rtm
.rtm_type
== RTN_PROHIBIT
|| rtm
.rtm_type
== RTN_FAILED_POLICY
||
2514 rtm
.rtm_type
== RTN_THROW
) {
2515 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
2520 msg
= nlmsg_alloc_simple(cmd
, flags
);
2524 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
2527 nla_put(msg
, RTA_DST
, alen
, &route
->addr
);
2529 if (route
->sourcemask
) {
2530 if (rtm
.rtm_family
== AF_INET
)
2531 nla_put(msg
, RTA_PREFSRC
, alen
, &route
->source
);
2533 nla_put(msg
, RTA_SRC
, alen
, &route
->source
);
2536 if (route
->metric
> 0)
2537 nla_put_u32(msg
, RTA_PRIORITY
, route
->metric
);
2540 nla_put(msg
, RTA_GATEWAY
, alen
, &route
->nexthop
);
2543 nla_put_u32(msg
, RTA_OIF
, dev
->ifindex
);
2546 nla_put_u32(msg
, RTA_TABLE
, table
);
2548 if (route
->flags
& DEVROUTE_MTU
) {
2549 struct nlattr
*metrics
;
2551 if (!(metrics
= nla_nest_start(msg
, RTA_METRICS
)))
2552 goto nla_put_failure
;
2554 nla_put_u32(msg
, RTAX_MTU
, route
->mtu
);
2556 nla_nest_end(msg
, metrics
);
2559 return system_rtnl_call(msg
);
2566 int system_add_route(struct device
*dev
, struct device_route
*route
)
2568 return system_rt(dev
, route
, RTM_NEWROUTE
);
2571 int system_del_route(struct device
*dev
, struct device_route
*route
)
2573 return system_rt(dev
, route
, RTM_DELROUTE
);
2576 int system_flush_routes(void)
2578 const char *names
[] = {
2579 "/proc/sys/net/ipv4/route/flush",
2580 "/proc/sys/net/ipv6/route/flush"
2584 for (i
= 0; i
< ARRAY_SIZE(names
); i
++) {
2585 fd
= open(names
[i
], O_WRONLY
);
2589 if (write(fd
, "-1", 2)) {}
2595 bool system_resolve_rt_type(const char *type
, unsigned int *id
)
2597 return system_rtn_aton(type
, id
);
2600 bool system_resolve_rt_proto(const char *type
, unsigned int *id
)
2604 unsigned int n
, proto
= 256;
2605 n
= strtoul(type
, &e
, 0);
2606 if (!*e
&& e
!= type
)
2608 else if (!strcmp(type
, "unspec"))
2609 proto
= RTPROT_UNSPEC
;
2610 else if (!strcmp(type
, "kernel"))
2611 proto
= RTPROT_KERNEL
;
2612 else if (!strcmp(type
, "boot"))
2613 proto
= RTPROT_BOOT
;
2614 else if (!strcmp(type
, "static"))
2615 proto
= RTPROT_STATIC
;
2616 else if ((f
= fopen("/etc/iproute2/rt_protos", "r")) != NULL
) {
2617 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
) {
2618 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2621 n
= strtoul(e
, NULL
, 10);
2622 e
= strtok(NULL
, " \t\n");
2624 if (e
&& !strcmp(e
, type
)) {
2639 bool system_resolve_rt_table(const char *name
, unsigned int *id
)
2643 unsigned int n
, table
= RT_TABLE_UNSPEC
;
2645 /* first try to parse table as number */
2646 if ((n
= strtoul(name
, &e
, 0)) > 0 && !*e
)
2649 /* handle well known aliases */
2650 else if (!strcmp(name
, "default"))
2651 table
= RT_TABLE_DEFAULT
;
2652 else if (!strcmp(name
, "main"))
2653 table
= RT_TABLE_MAIN
;
2654 else if (!strcmp(name
, "local"))
2655 table
= RT_TABLE_LOCAL
;
2657 /* try to look up name in /etc/iproute2/rt_tables */
2658 else if ((f
= fopen("/etc/iproute2/rt_tables", "r")) != NULL
)
2660 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
)
2662 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2665 n
= strtoul(e
, NULL
, 10);
2666 e
= strtok(NULL
, " \t\n");
2668 if (e
&& !strcmp(e
, name
))
2678 if (table
== RT_TABLE_UNSPEC
)
2685 bool system_is_default_rt_table(unsigned int id
)
2687 return (id
== RT_TABLE_MAIN
);
2690 bool system_resolve_rpfilter(const char *filter
, unsigned int *id
)
2695 if (!strcmp(filter
, "strict"))
2697 else if (!strcmp(filter
, "loose"))
2700 n
= strtoul(filter
, &e
, 0);
2701 if (*e
|| e
== filter
|| n
> 2)
2709 static int system_iprule(struct iprule
*rule
, int cmd
)
2711 int alen
= ((rule
->flags
& IPRULE_FAMILY
) == IPRULE_INET4
) ? 4 : 16;
2714 struct rtmsg rtm
= {
2715 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2716 .rtm_protocol
= RTPROT_STATIC
,
2717 .rtm_scope
= RT_SCOPE_UNIVERSE
,
2718 .rtm_table
= RT_TABLE_UNSPEC
,
2719 .rtm_type
= RTN_UNSPEC
,
2723 if (cmd
== RTM_NEWRULE
)
2724 rtm
.rtm_type
= RTN_UNICAST
;
2727 rtm
.rtm_flags
|= FIB_RULE_INVERT
;
2729 if (rule
->flags
& IPRULE_SRC
)
2730 rtm
.rtm_src_len
= rule
->src_mask
;
2732 if (rule
->flags
& IPRULE_DEST
)
2733 rtm
.rtm_dst_len
= rule
->dest_mask
;
2735 if (rule
->flags
& IPRULE_TOS
)
2736 rtm
.rtm_tos
= rule
->tos
;
2738 if (rule
->flags
& IPRULE_LOOKUP
) {
2739 if (rule
->lookup
< 256)
2740 rtm
.rtm_table
= rule
->lookup
;
2743 if (rule
->flags
& IPRULE_ACTION
)
2744 rtm
.rtm_type
= rule
->action
;
2745 else if (rule
->flags
& IPRULE_GOTO
)
2746 rtm
.rtm_type
= FR_ACT_GOTO
;
2747 else if (!(rule
->flags
& (IPRULE_LOOKUP
| IPRULE_ACTION
| IPRULE_GOTO
)))
2748 rtm
.rtm_type
= FR_ACT_NOP
;
2750 msg
= nlmsg_alloc_simple(cmd
, NLM_F_REQUEST
);
2755 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
2757 if (rule
->flags
& IPRULE_IN
)
2758 nla_put(msg
, FRA_IFNAME
, strlen(rule
->in_dev
) + 1, rule
->in_dev
);
2760 if (rule
->flags
& IPRULE_OUT
)
2761 nla_put(msg
, FRA_OIFNAME
, strlen(rule
->out_dev
) + 1, rule
->out_dev
);
2763 if (rule
->flags
& IPRULE_SRC
)
2764 nla_put(msg
, FRA_SRC
, alen
, &rule
->src_addr
);
2766 if (rule
->flags
& IPRULE_DEST
)
2767 nla_put(msg
, FRA_DST
, alen
, &rule
->dest_addr
);
2769 if (rule
->flags
& IPRULE_PRIORITY
)
2770 nla_put_u32(msg
, FRA_PRIORITY
, rule
->priority
);
2771 else if (cmd
== RTM_NEWRULE
)
2772 nla_put_u32(msg
, FRA_PRIORITY
, rule
->order
);
2774 if (rule
->flags
& IPRULE_FWMARK
)
2775 nla_put_u32(msg
, FRA_FWMARK
, rule
->fwmark
);
2777 if (rule
->flags
& IPRULE_FWMASK
)
2778 nla_put_u32(msg
, FRA_FWMASK
, rule
->fwmask
);
2780 if (rule
->flags
& IPRULE_LOOKUP
) {
2781 if (rule
->lookup
>= 256)
2782 nla_put_u32(msg
, FRA_TABLE
, rule
->lookup
);
2785 if (rule
->flags
& IPRULE_SUP_PREFIXLEN
)
2786 nla_put_u32(msg
, FRA_SUPPRESS_PREFIXLEN
, rule
->sup_prefixlen
);
2788 if (rule
->flags
& IPRULE_GOTO
)
2789 nla_put_u32(msg
, FRA_GOTO
, rule
->gotoid
);
2791 return system_rtnl_call(msg
);
2794 int system_add_iprule(struct iprule
*rule
)
2796 return system_iprule(rule
, RTM_NEWRULE
);
2799 int system_del_iprule(struct iprule
*rule
)
2801 return system_iprule(rule
, RTM_DELRULE
);
2804 int system_flush_iprules(void)
2809 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET
);
2810 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET6
);
2812 memset(&rule
, 0, sizeof(rule
));
2815 rule
.flags
= IPRULE_INET4
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
2818 rule
.lookup
= RT_TABLE_LOCAL
;
2819 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2821 rule
.priority
= 32766;
2822 rule
.lookup
= RT_TABLE_MAIN
;
2823 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2825 rule
.priority
= 32767;
2826 rule
.lookup
= RT_TABLE_DEFAULT
;
2827 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2830 rule
.flags
= IPRULE_INET6
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
2833 rule
.lookup
= RT_TABLE_LOCAL
;
2834 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2836 rule
.priority
= 32766;
2837 rule
.lookup
= RT_TABLE_MAIN
;
2838 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2843 bool system_resolve_iprule_action(const char *action
, unsigned int *id
)
2845 return system_rtn_aton(action
, id
);
2848 time_t system_get_rtime(void)
2853 if (clock_gettime(CLOCK_MONOTONIC
, &ts
) == 0)
2856 if (gettimeofday(&tv
, NULL
) == 0)
2863 #define IP_DF 0x4000
2866 static int tunnel_ioctl(const char *name
, int cmd
, void *p
)
2870 memset(&ifr
, 0, sizeof(ifr
));
2871 strncpy(ifr
.ifr_name
, name
, sizeof(ifr
.ifr_name
) - 1);
2872 ifr
.ifr_ifru
.ifru_data
= p
;
2873 return ioctl(sock_ioctl
, cmd
, &ifr
);
2876 #ifdef IFLA_IPTUN_MAX
2877 static int system_add_ip6_tunnel(const char *name
, const unsigned int link
,
2878 struct blob_attr
**tb
)
2880 struct nl_msg
*nlm
= nlmsg_alloc_simple(RTM_NEWLINK
,
2881 NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2882 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
};
2883 struct blob_attr
*cur
;
2884 int ret
= 0, ttl
= 0;
2889 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2890 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2893 nla_put_u32(nlm
, IFLA_LINK
, link
);
2895 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2901 nla_put_string(nlm
, IFLA_INFO_KIND
, "ip6tnl");
2902 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2909 nla_put_u32(nlm
, IFLA_IPTUN_LINK
, link
);
2911 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2912 ttl
= blobmsg_get_u32(cur
);
2914 nla_put_u8(nlm
, IFLA_IPTUN_PROTO
, IPPROTO_IPIP
);
2915 nla_put_u8(nlm
, IFLA_IPTUN_TTL
, (ttl
) ? ttl
: 64);
2917 struct in6_addr in6buf
;
2918 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2919 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2923 nla_put(nlm
, IFLA_IPTUN_LOCAL
, sizeof(in6buf
), &in6buf
);
2926 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2927 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2931 nla_put(nlm
, IFLA_IPTUN_REMOTE
, sizeof(in6buf
), &in6buf
);
2934 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2935 struct blob_attr
*tb_data
[__IPIP6_DATA_ATTR_MAX
];
2936 uint32_t tun_flags
= IP6_TNL_F_IGN_ENCAP_LIMIT
;
2938 blobmsg_parse(ipip6_data_attr_list
.params
, __IPIP6_DATA_ATTR_MAX
, tb_data
,
2939 blobmsg_data(cur
), blobmsg_len(cur
));
2941 if ((cur
= tb_data
[IPIP6_DATA_ENCAPLIMIT
])) {
2942 char *str
= blobmsg_get_string(cur
);
2944 if (strcmp(str
, "ignore")) {
2946 unsigned encap_limit
= strtoul(str
, &e
, 0);
2948 if (e
== str
|| *e
|| encap_limit
> 255) {
2953 nla_put_u8(nlm
, IFLA_IPTUN_ENCAP_LIMIT
, encap_limit
);
2954 tun_flags
&= ~IP6_TNL_F_IGN_ENCAP_LIMIT
;
2958 #ifdef IFLA_IPTUN_FMR_MAX
2959 if ((cur
= tb_data
[IPIP6_DATA_FMRS
])) {
2960 struct blob_attr
*rcur
;
2961 unsigned rrem
, fmrcnt
= 0;
2962 struct nlattr
*fmrs
= nla_nest_start(nlm
, IFLA_IPTUN_FMRS
);
2969 blobmsg_for_each_attr(rcur
, cur
, rrem
) {
2970 struct blob_attr
*tb_fmr
[__FMR_DATA_ATTR_MAX
], *tb_cur
;
2971 struct in6_addr ip6prefix
;
2972 struct in_addr ip4prefix
;
2973 unsigned ip4len
, ip6len
, ealen
, offset
;
2975 blobmsg_parse(fmr_data_attr_list
.params
, __FMR_DATA_ATTR_MAX
, tb_fmr
,
2976 blobmsg_data(rcur
), blobmsg_len(rcur
));
2978 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX6
]) ||
2979 !parse_ip_and_netmask(AF_INET6
,
2980 blobmsg_data(tb_cur
), &ip6prefix
,
2986 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX4
]) ||
2987 !parse_ip_and_netmask(AF_INET
,
2988 blobmsg_data(tb_cur
), &ip4prefix
,
2994 if (!(tb_cur
= tb_fmr
[FMR_DATA_EALEN
])) {
2998 ealen
= blobmsg_get_u32(tb_cur
);
3000 if (!(tb_cur
= tb_fmr
[FMR_DATA_OFFSET
])) {
3004 offset
= blobmsg_get_u32(tb_cur
);
3006 struct nlattr
*rule
= nla_nest_start(nlm
, ++fmrcnt
);
3012 nla_put(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX
, sizeof(ip6prefix
), &ip6prefix
);
3013 nla_put(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX
, sizeof(ip4prefix
), &ip4prefix
);
3014 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX_LEN
, ip6len
);
3015 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX_LEN
, ip4len
);
3016 nla_put_u8(nlm
, IFLA_IPTUN_FMR_EA_LEN
, ealen
);
3017 nla_put_u8(nlm
, IFLA_IPTUN_FMR_OFFSET
, offset
);
3019 nla_nest_end(nlm
, rule
);
3022 nla_nest_end(nlm
, fmrs
);
3026 nla_put_u32(nlm
, IFLA_IPTUN_FLAGS
, tun_flags
);
3029 nla_nest_end(nlm
, infodata
);
3030 nla_nest_end(nlm
, linkinfo
);
3032 return system_rtnl_call(nlm
);
3040 #ifdef IFLA_IPTUN_MAX
3041 #define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
3042 static int system_add_gre_tunnel(const char *name
, const char *kind
,
3043 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3046 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3047 struct blob_attr
*cur
;
3048 uint32_t ikey
= 0, okey
= 0, flowinfo
= 0, flags6
= IP6_TNL_F_IGN_ENCAP_LIMIT
;
3049 uint16_t iflags
= 0, oflags
= 0;
3051 int ret
= 0, ttl
= 0;
3052 unsigned encap_limit
= 0;
3054 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3058 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3059 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3061 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3067 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
3068 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3075 nla_put_u32(nlm
, IFLA_GRE_LINK
, link
);
3077 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3078 ttl
= blobmsg_get_u32(cur
);
3080 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3081 char *str
= blobmsg_get_string(cur
);
3082 if (strcmp(str
, "inherit")) {
3085 if (!system_tos_aton(str
, &uval
)) {
3091 flowinfo
|= htonl(uval
<< 20) & IP6_FLOWINFO_TCLASS
;
3096 flags6
|= IP6_TNL_F_USE_ORIG_TCLASS
;
3102 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3103 struct blob_attr
*tb_data
[__GRE_DATA_ATTR_MAX
];
3105 blobmsg_parse(gre_data_attr_list
.params
, __GRE_DATA_ATTR_MAX
, tb_data
,
3106 blobmsg_data(cur
), blobmsg_len(cur
));
3108 if ((cur
= tb_data
[GRE_DATA_IKEY
])) {
3109 if ((ikey
= blobmsg_get_u32(cur
)))
3113 if ((cur
= tb_data
[GRE_DATA_OKEY
])) {
3114 if ((okey
= blobmsg_get_u32(cur
)))
3118 if ((cur
= tb_data
[GRE_DATA_ICSUM
])) {
3119 if (blobmsg_get_bool(cur
))
3123 if ((cur
= tb_data
[GRE_DATA_OCSUM
])) {
3124 if (blobmsg_get_bool(cur
))
3128 if ((cur
= tb_data
[GRE_DATA_ISEQNO
])) {
3129 if (blobmsg_get_bool(cur
))
3133 if ((cur
= tb_data
[GRE_DATA_OSEQNO
])) {
3134 if (blobmsg_get_bool(cur
))
3138 if ((cur
= tb_data
[GRE_DATA_ENCAPLIMIT
])) {
3139 char *str
= blobmsg_get_string(cur
);
3141 if (strcmp(str
, "ignore")) {
3144 encap_limit
= strtoul(str
, &e
, 0);
3146 if (e
== str
|| *e
|| encap_limit
> 255) {
3151 flags6
&= ~IP6_TNL_F_IGN_ENCAP_LIMIT
;
3157 struct in6_addr in6buf
;
3158 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3159 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3163 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(in6buf
), &in6buf
);
3166 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3167 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3171 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(in6buf
), &in6buf
);
3174 if (!(flags6
& IP6_TNL_F_IGN_ENCAP_LIMIT
))
3175 nla_put_u8(nlm
, IFLA_GRE_ENCAP_LIMIT
, encap_limit
);
3178 nla_put_u32(nlm
, IFLA_GRE_FLOWINFO
, flowinfo
);
3181 nla_put_u32(nlm
, IFLA_GRE_FLAGS
, flags6
);
3186 struct in_addr inbuf
;
3189 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3190 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3194 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(inbuf
), &inbuf
);
3197 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3198 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3202 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(inbuf
), &inbuf
);
3204 if (IN_MULTICAST(ntohl(inbuf
.s_addr
))) {
3206 okey
= inbuf
.s_addr
;
3211 ikey
= inbuf
.s_addr
;
3217 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
3218 set_df
= blobmsg_get_bool(cur
);
3221 /* ttl != 0 and nopmtudisc are incompatible */
3229 nla_put_u8(nlm
, IFLA_GRE_PMTUDISC
, set_df
? 1 : 0);
3231 nla_put_u8(nlm
, IFLA_GRE_TOS
, tos
);
3235 nla_put_u8(nlm
, IFLA_GRE_TTL
, ttl
);
3238 nla_put_u16(nlm
, IFLA_GRE_OFLAGS
, oflags
);
3241 nla_put_u16(nlm
, IFLA_GRE_IFLAGS
, iflags
);
3244 nla_put_u32(nlm
, IFLA_GRE_OKEY
, htonl(okey
));
3247 nla_put_u32(nlm
, IFLA_GRE_IKEY
, htonl(ikey
));
3249 nla_nest_end(nlm
, infodata
);
3250 nla_nest_end(nlm
, linkinfo
);
3252 return system_rtnl_call(nlm
);
3261 static int system_add_vti_tunnel(const char *name
, const char *kind
,
3262 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3265 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3266 struct blob_attr
*cur
;
3269 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3273 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3274 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3276 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3282 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
3283 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3290 nla_put_u32(nlm
, IFLA_VTI_LINK
, link
);
3293 struct in6_addr in6buf
;
3294 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3295 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3299 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(in6buf
), &in6buf
);
3302 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3303 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3307 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(in6buf
), &in6buf
);
3311 struct in_addr inbuf
;
3313 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3314 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3318 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(inbuf
), &inbuf
);
3321 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3322 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3326 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(inbuf
), &inbuf
);
3331 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3332 struct blob_attr
*tb_data
[__VTI_DATA_ATTR_MAX
];
3333 uint32_t ikey
= 0, okey
= 0;
3335 blobmsg_parse(vti_data_attr_list
.params
, __VTI_DATA_ATTR_MAX
, tb_data
,
3336 blobmsg_data(cur
), blobmsg_len(cur
));
3338 if ((cur
= tb_data
[VTI_DATA_IKEY
])) {
3339 if ((ikey
= blobmsg_get_u32(cur
)))
3340 nla_put_u32(nlm
, IFLA_VTI_IKEY
, htonl(ikey
));
3343 if ((cur
= tb_data
[VTI_DATA_OKEY
])) {
3344 if ((okey
= blobmsg_get_u32(cur
)))
3345 nla_put_u32(nlm
, IFLA_VTI_OKEY
, htonl(okey
));
3349 nla_nest_end(nlm
, infodata
);
3350 nla_nest_end(nlm
, linkinfo
);
3352 return system_rtnl_call(nlm
);
3360 #ifdef IFLA_XFRM_MAX
3361 static int system_add_xfrm_tunnel(const char *name
, const char *kind
,
3362 const unsigned int link
, struct blob_attr
**tb
)
3365 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3366 struct blob_attr
*cur
;
3369 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3373 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3374 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3376 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3382 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
3383 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3390 nla_put_u32(nlm
, IFLA_XFRM_LINK
, link
);
3392 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3393 struct blob_attr
*tb_data
[__XFRM_DATA_ATTR_MAX
];
3396 blobmsg_parse(xfrm_data_attr_list
.params
, __XFRM_DATA_ATTR_MAX
, tb_data
,
3397 blobmsg_data(cur
), blobmsg_len(cur
));
3399 if ((cur
= tb_data
[XFRM_DATA_IF_ID
])) {
3400 if ((if_id
= blobmsg_get_u32(cur
)))
3401 nla_put_u32(nlm
, IFLA_XFRM_IF_ID
, if_id
);
3406 nla_nest_end(nlm
, infodata
);
3407 nla_nest_end(nlm
, linkinfo
);
3409 return system_rtnl_call(nlm
);
3417 #ifdef IFLA_VXLAN_MAX
3418 static void system_vxlan_map_bool_attr(struct nl_msg
*msg
, struct blob_attr
**tb_data
, int attrtype
, int vxlandatatype
, bool invert
) {
3419 struct blob_attr
*cur
;
3420 if ((cur
= tb_data
[vxlandatatype
])) {
3421 bool val
= blobmsg_get_bool(cur
);
3425 if ((attrtype
== IFLA_VXLAN_GBP
) && val
)
3426 nla_put_flag(msg
, attrtype
);
3428 nla_put_u8(msg
, attrtype
, val
);
3433 static int system_add_vxlan(const char *name
, const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3435 struct blob_attr
*tb_data
[__VXLAN_DATA_ATTR_MAX
];
3437 struct nlattr
*linkinfo
, *data
;
3438 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
3439 struct blob_attr
*cur
;
3442 if ((cur
= tb
[TUNNEL_ATTR_DATA
]))
3443 blobmsg_parse(vxlan_data_attr_list
.params
, __VXLAN_DATA_ATTR_MAX
, tb_data
,
3444 blobmsg_data(cur
), blobmsg_len(cur
));
3448 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
3453 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
3455 nla_put_string(msg
, IFLA_IFNAME
, name
);
3457 if ((cur
= tb_data
[VXLAN_DATA_ATTR_MACADDR
])) {
3458 struct ether_addr
*ea
= ether_aton(blobmsg_get_string(cur
));
3464 nla_put(msg
, IFLA_ADDRESS
, ETH_ALEN
, ea
);
3467 if ((cur
= tb
[TUNNEL_ATTR_MTU
])) {
3468 uint32_t mtu
= blobmsg_get_u32(cur
);
3469 nla_put_u32(msg
, IFLA_MTU
, mtu
);
3472 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
))) {
3477 nla_put_string(msg
, IFLA_INFO_KIND
, "vxlan");
3479 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
))) {
3485 nla_put_u32(msg
, IFLA_VXLAN_LINK
, link
);
3487 if ((cur
= tb_data
[VXLAN_DATA_ATTR_ID
])) {
3488 uint32_t id
= blobmsg_get_u32(cur
);
3489 if (id
>= (1u << 24) - 1) {
3494 nla_put_u32(msg
, IFLA_VXLAN_ID
, id
);
3498 struct in6_addr in6buf
;
3499 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3500 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3504 nla_put(msg
, IFLA_VXLAN_LOCAL6
, sizeof(in6buf
), &in6buf
);
3507 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3508 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3512 nla_put(msg
, IFLA_VXLAN_GROUP6
, sizeof(in6buf
), &in6buf
);
3515 struct in_addr inbuf
;
3517 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3518 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3522 nla_put(msg
, IFLA_VXLAN_LOCAL
, sizeof(inbuf
), &inbuf
);
3525 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3526 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3530 nla_put(msg
, IFLA_VXLAN_GROUP
, sizeof(inbuf
), &inbuf
);
3534 uint32_t port
= 4789;
3535 if ((cur
= tb_data
[VXLAN_DATA_ATTR_PORT
])) {
3536 port
= blobmsg_get_u32(cur
);
3537 if (port
< 1 || port
> 65535) {
3542 nla_put_u16(msg
, IFLA_VXLAN_PORT
, htons(port
));
3544 if ((cur
= tb_data
[VXLAN_DATA_ATTR_SRCPORTMIN
])) {
3545 struct ifla_vxlan_port_range srcports
= {0,0};
3547 uint32_t low
= blobmsg_get_u32(cur
);
3548 if (low
< 1 || low
> 65535 - 1) {
3553 srcports
.low
= htons((uint16_t) low
);
3554 srcports
.high
= htons((uint16_t) (low
+1));
3556 if ((cur
= tb_data
[VXLAN_DATA_ATTR_SRCPORTMAX
])) {
3557 uint32_t high
= blobmsg_get_u32(cur
);
3558 if (high
< 1 || high
> 65535) {
3564 srcports
.high
= htons((uint16_t) high
);
3567 nla_put(msg
, IFLA_VXLAN_PORT_RANGE
, sizeof(srcports
), &srcports
);
3570 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_CSUM
, VXLAN_DATA_ATTR_TXCSUM
, false);
3571 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_ZERO_CSUM6_RX
, VXLAN_DATA_ATTR_RXCSUM
, true);
3572 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_ZERO_CSUM6_TX
, VXLAN_DATA_ATTR_TXCSUM
, true);
3573 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_LEARNING
, VXLAN_DATA_ATTR_LEARNING
, false);
3574 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_RSC
, VXLAN_DATA_ATTR_RSC
, false);
3575 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_PROXY
, VXLAN_DATA_ATTR_PROXY
, false);
3576 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_L2MISS
, VXLAN_DATA_ATTR_L2MISS
, false);
3577 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_L3MISS
, VXLAN_DATA_ATTR_L3MISS
, false);
3578 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_GBP
, VXLAN_DATA_ATTR_GBP
, false);
3580 if ((cur
= tb_data
[VXLAN_DATA_ATTR_AGEING
])) {
3581 uint32_t ageing
= blobmsg_get_u32(cur
);
3582 nla_put_u32(msg
, IFLA_VXLAN_AGEING
, ageing
);
3585 if ((cur
= tb_data
[VXLAN_DATA_ATTR_LIMIT
])) {
3586 uint32_t maxaddress
= blobmsg_get_u32(cur
);
3587 nla_put_u32(msg
, IFLA_VXLAN_LIMIT
, maxaddress
);
3590 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3591 char *str
= blobmsg_get_string(cur
);
3594 if (strcmp(str
, "inherit")) {
3595 if (!system_tos_aton(str
, &tos
)) {
3601 nla_put_u8(msg
, IFLA_VXLAN_TOS
, tos
);
3604 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
3605 uint32_t ttl
= blobmsg_get_u32(cur
);
3606 if (ttl
< 1 || ttl
> 255) {
3611 nla_put_u8(msg
, IFLA_VXLAN_TTL
, ttl
);
3614 nla_nest_end(msg
, data
);
3615 nla_nest_end(msg
, linkinfo
);
3617 ret
= system_rtnl_call(msg
);
3619 D(SYSTEM
, "Error adding vxlan '%s': %d\n", name
, ret
);
3629 static int system_add_sit_tunnel(const char *name
, const unsigned int link
, struct blob_attr
**tb
)
3631 struct blob_attr
*cur
;
3634 if (system_add_proto_tunnel(name
, IPPROTO_IPV6
, link
, tb
) < 0)
3638 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3639 struct blob_attr
*tb_data
[__SIXRD_DATA_ATTR_MAX
];
3641 struct ip_tunnel_6rd p6
;
3643 blobmsg_parse(sixrd_data_attr_list
.params
, __SIXRD_DATA_ATTR_MAX
, tb_data
,
3644 blobmsg_data(cur
), blobmsg_len(cur
));
3646 memset(&p6
, 0, sizeof(p6
));
3648 if ((cur
= tb_data
[SIXRD_DATA_PREFIX
])) {
3649 if (!parse_ip_and_netmask(AF_INET6
, blobmsg_data(cur
),
3650 &p6
.prefix
, &mask
) || mask
> 128) {
3655 p6
.prefixlen
= mask
;
3658 if ((cur
= tb_data
[SIXRD_DATA_RELAY_PREFIX
])) {
3659 if (!parse_ip_and_netmask(AF_INET
, blobmsg_data(cur
),
3660 &p6
.relay_prefix
, &mask
) || mask
> 32) {
3665 p6
.relay_prefixlen
= mask
;
3668 if (tunnel_ioctl(name
, SIOCADD6RD
, &p6
) < 0) {
3678 __system_del_ip_tunnel(name
, tb
);
3682 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
, const unsigned int link
, struct blob_attr
**tb
)
3684 struct blob_attr
*cur
;
3686 struct ip_tunnel_parm p
= {
3695 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
]) &&
3696 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.saddr
) < 1)
3699 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
]) &&
3700 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.daddr
) < 1)
3703 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
3704 set_df
= blobmsg_get_bool(cur
);
3706 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3707 p
.iph
.ttl
= blobmsg_get_u32(cur
);
3709 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3710 char *str
= blobmsg_get_string(cur
);
3711 if (strcmp(str
, "inherit")) {
3714 if (!system_tos_aton(str
, &uval
))
3722 p
.iph
.frag_off
= set_df
? htons(IP_DF
) : 0;
3723 /* ttl !=0 and nopmtudisc are incompatible */
3724 if (p
.iph
.ttl
&& p
.iph
.frag_off
== 0)
3727 strncpy(p
.name
, name
, sizeof(p
.name
) - 1);
3729 switch (p
.iph
.protocol
) {
3731 return tunnel_ioctl("tunl0", SIOCADDTUNNEL
, &p
);
3733 return tunnel_ioctl("sit0", SIOCADDTUNNEL
, &p
);
3740 static int __system_del_ip_tunnel(const char *name
, struct blob_attr
**tb
)
3742 struct blob_attr
*cur
;
3745 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
3747 str
= blobmsg_data(cur
);
3749 if (!strcmp(str
, "greip") || !strcmp(str
, "gretapip") ||
3750 !strcmp(str
, "greip6") || !strcmp(str
, "gretapip6") ||
3751 !strcmp(str
, "vtiip") || !strcmp(str
, "vtiip6") ||
3752 !strcmp(str
, "vxlan") || !strcmp(str
, "vxlan6") ||
3753 !strcmp(str
, "xfrm"))
3754 return system_link_del(name
);
3756 return tunnel_ioctl(name
, SIOCDELTUNNEL
, NULL
);
3759 int system_del_ip_tunnel(const char *name
, struct blob_attr
*attr
)
3761 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
3763 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
3764 blob_data(attr
), blob_len(attr
));
3766 return __system_del_ip_tunnel(name
, tb
);
3769 int system_update_ipv6_mtu(struct device
*dev
, int mtu
)
3775 snprintf(buf
, sizeof(buf
), "/proc/sys/net/ipv6/conf/%s/mtu",
3778 fd
= open(buf
, O_RDWR
);
3783 ssize_t len
= read(fd
, buf
, sizeof(buf
) - 1);
3790 if (write(fd
, buf
, snprintf(buf
, sizeof(buf
), "%i", mtu
)) > 0)
3799 int system_add_ip_tunnel(const char *name
, struct blob_attr
*attr
)
3801 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
3802 struct blob_attr
*cur
;
3805 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
3806 blob_data(attr
), blob_len(attr
));
3808 __system_del_ip_tunnel(name
, tb
);
3810 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
3812 str
= blobmsg_data(cur
);
3814 unsigned int ttl
= 0;
3815 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
3816 ttl
= blobmsg_get_u32(cur
);
3821 unsigned int link
= 0;
3822 if ((cur
= tb
[TUNNEL_ATTR_LINK
])) {
3823 struct interface
*iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
3827 if (iface
->l3_dev
.dev
)
3828 link
= iface
->l3_dev
.dev
->ifindex
;
3831 if (!strcmp(str
, "sit"))
3832 return system_add_sit_tunnel(name
, link
, tb
);
3833 #ifdef IFLA_IPTUN_MAX
3834 else if (!strcmp(str
, "ipip6")) {
3835 return system_add_ip6_tunnel(name
, link
, tb
);
3836 } else if (!strcmp(str
, "greip")) {
3837 return system_add_gre_tunnel(name
, "gre", link
, tb
, false);
3838 } else if (!strcmp(str
, "gretapip")) {
3839 return system_add_gre_tunnel(name
, "gretap", link
, tb
, false);
3840 } else if (!strcmp(str
, "greip6")) {
3841 return system_add_gre_tunnel(name
, "ip6gre", link
, tb
, true);
3842 } else if (!strcmp(str
, "gretapip6")) {
3843 return system_add_gre_tunnel(name
, "ip6gretap", link
, tb
, true);
3845 } else if (!strcmp(str
, "vtiip")) {
3846 return system_add_vti_tunnel(name
, "vti", link
, tb
, false);
3847 } else if (!strcmp(str
, "vtiip6")) {
3848 return system_add_vti_tunnel(name
, "vti6", link
, tb
, true);
3850 #ifdef IFLA_XFRM_MAX
3851 } else if (!strcmp(str
, "xfrm")) {
3852 return system_add_xfrm_tunnel(name
, "xfrm", link
, tb
);
3854 #ifdef IFLA_VXLAN_MAX
3855 } else if(!strcmp(str
, "vxlan")) {
3856 return system_add_vxlan(name
, link
, tb
, false);
3857 } else if(!strcmp(str
, "vxlan6")) {
3858 return system_add_vxlan(name
, link
, tb
, true);
3861 } else if (!strcmp(str
, "ipip")) {
3862 return system_add_proto_tunnel(name
, IPPROTO_IPIP
, link
, tb
);