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>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2
11 * as published by the Free Software Foundation
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
20 #include <sys/socket.h>
21 #include <sys/ioctl.h>
23 #include <sys/syscall.h>
26 #include <net/if_arp.h>
28 #include <arpa/inet.h>
29 #include <netinet/ether.h>
30 #include <netinet/in.h>
32 #include <linux/rtnetlink.h>
33 #include <linux/sockios.h>
35 #include <linux/if_addr.h>
36 #include <linux/if_link.h>
37 #include <linux/if_vlan.h>
38 #include <linux/if_bridge.h>
39 #include <linux/if_tunnel.h>
40 #include <linux/ip6_tunnel.h>
41 #include <linux/ethtool.h>
42 #include <linux/fib_rules.h>
43 #include <linux/veth.h>
44 #include <linux/version.h>
46 #ifndef RTN_FAILED_POLICY
47 #define RTN_FAILED_POLICY 12
50 #ifndef IFA_F_NOPREFIXROUTE
51 #define IFA_F_NOPREFIXROUTE 0x200
55 #define IFA_FLAGS (IFA_MULTICAST + 1)
64 #include <netlink/msg.h>
65 #include <netlink/attr.h>
66 #include <netlink/socket.h>
67 #include <libubox/uloop.h>
74 struct uloop_fd uloop
;
79 static int sock_ioctl
= -1;
80 static struct nl_sock
*sock_rtnl
= NULL
;
82 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
);
83 static void handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
);
85 static char dev_buf
[256];
88 handler_nl_event(struct uloop_fd
*u
, unsigned int events
)
90 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
92 socklen_t errlen
= sizeof(err
);
95 nl_recvmsgs_default(ev
->sock
);
99 if (getsockopt(u
->fd
, SOL_SOCKET
, SO_ERROR
, (void *)&err
, &errlen
))
104 // Increase rx buffer size on netlink socket
106 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
109 // Request full dump since some info got dropped
110 struct rtgenmsg msg
= { .rtgen_family
= AF_UNSPEC
};
111 nl_send_simple(ev
->sock
, RTM_GETLINK
, NLM_F_DUMP
, &msg
, sizeof(msg
));
121 uloop_fd_delete(&ev
->uloop
);
125 static struct nl_sock
*
126 create_socket(int protocol
, int groups
)
128 struct nl_sock
*sock
;
130 sock
= nl_socket_alloc();
135 nl_join_groups(sock
, groups
);
137 if (nl_connect(sock
, protocol
))
144 create_raw_event_socket(struct event_socket
*ev
, int protocol
, int groups
,
145 uloop_fd_handler cb
, int flags
)
147 ev
->sock
= create_socket(protocol
, groups
);
151 ev
->uloop
.fd
= nl_socket_get_fd(ev
->sock
);
153 if (uloop_fd_add(&ev
->uloop
, ULOOP_READ
|flags
))
160 create_event_socket(struct event_socket
*ev
, int protocol
,
161 int (*cb
)(struct nl_msg
*msg
, void *arg
))
163 if (!create_raw_event_socket(ev
, protocol
, 0, handler_nl_event
, ULOOP_ERROR_CB
))
166 // Install the valid custom callback handler
167 nl_socket_modify_cb(ev
->sock
, NL_CB_VALID
, NL_CB_CUSTOM
, cb
, NULL
);
169 // Disable sequence number checking on event sockets
170 nl_socket_disable_seq_check(ev
->sock
);
172 // Increase rx buffer size to 65K on event sockets
174 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
181 system_rtn_aton(const char *src
, unsigned int *dst
)
186 if (!strcmp(src
, "local"))
188 else if (!strcmp(src
, "nat"))
190 else if (!strcmp(src
, "broadcast"))
192 else if (!strcmp(src
, "anycast"))
194 else if (!strcmp(src
, "multicast"))
196 else if (!strcmp(src
, "prohibit"))
198 else if (!strcmp(src
, "unreachable"))
200 else if (!strcmp(src
, "blackhole"))
202 else if (!strcmp(src
, "xresolve"))
204 else if (!strcmp(src
, "unicast"))
206 else if (!strcmp(src
, "throw"))
208 else if (!strcmp(src
, "failed_policy"))
209 n
= RTN_FAILED_POLICY
;
211 n
= strtoul(src
, &e
, 0);
212 if (!e
|| *e
|| e
== src
|| n
> 255)
221 system_tos_aton(const char *src
, unsigned *dst
)
225 *dst
= strtoul(src
, &e
, 16);
226 if (e
== src
|| *e
|| *dst
> 255)
232 int system_init(void)
234 static struct event_socket rtnl_event
;
235 static struct event_socket hotplug_event
;
237 sock_ioctl
= socket(AF_LOCAL
, SOCK_DGRAM
, 0);
238 system_fd_set_cloexec(sock_ioctl
);
240 // Prepare socket for routing / address control
241 sock_rtnl
= create_socket(NETLINK_ROUTE
, 0);
245 if (!create_event_socket(&rtnl_event
, NETLINK_ROUTE
, cb_rtnl_event
))
248 if (!create_raw_event_socket(&hotplug_event
, NETLINK_KOBJECT_UEVENT
, 1,
249 handle_hotplug_event
, 0))
252 // Receive network link events form kernel
253 nl_socket_add_membership(rtnl_event
.sock
, RTNLGRP_LINK
);
258 static void system_set_sysctl(const char *path
, const char *val
)
262 fd
= open(path
, O_WRONLY
);
266 if (write(fd
, val
, strlen(val
))) {}
270 static void system_set_dev_sysctl(const char *path
, const char *device
, const char *val
)
272 snprintf(dev_buf
, sizeof(dev_buf
), path
, device
);
273 system_set_sysctl(dev_buf
, val
);
276 static void system_set_disable_ipv6(struct device
*dev
, const char *val
)
278 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6", dev
->ifname
, val
);
281 static void system_set_rpfilter(struct device
*dev
, const char *val
)
283 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/rp_filter", dev
->ifname
, val
);
286 static void system_set_acceptlocal(struct device
*dev
, const char *val
)
288 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/accept_local", dev
->ifname
, val
);
291 static void system_set_igmpversion(struct device
*dev
, const char *val
)
293 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/force_igmp_version", dev
->ifname
, val
);
296 static void system_set_mldversion(struct device
*dev
, const char *val
)
298 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/force_mld_version", dev
->ifname
, val
);
301 static void system_set_neigh4reachabletime(struct device
*dev
, const char *val
)
303 system_set_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/base_reachable_time_ms", dev
->ifname
, val
);
306 static void system_set_neigh6reachabletime(struct device
*dev
, const char *val
)
308 system_set_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/base_reachable_time_ms", dev
->ifname
, val
);
311 static void system_set_neigh4gcstaletime(struct device
*dev
, const char *val
)
313 system_set_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/gc_stale_time", dev
->ifname
, val
);
316 static void system_set_neigh6gcstaletime(struct device
*dev
, const char *val
)
318 system_set_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/gc_stale_time", dev
->ifname
, val
);
321 static void system_set_neigh4locktime(struct device
*dev
, const char *val
)
323 system_set_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/locktime", dev
->ifname
, val
);
326 static void system_set_dadtransmits(struct device
*dev
, const char *val
)
328 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/dad_transmits", dev
->ifname
, val
);
331 static void system_bridge_set_multicast_to_unicast(struct device
*dev
, const char *val
)
333 system_set_dev_sysctl("/sys/class/net/%s/brport/multicast_to_unicast", dev
->ifname
, val
);
336 static void system_bridge_set_multicast_fast_leave(struct device
*dev
, const char *val
)
338 system_set_dev_sysctl("/sys/class/net/%s/brport/multicast_fast_leave", dev
->ifname
, val
);
341 static void system_bridge_set_hairpin_mode(struct device
*dev
, const char *val
)
343 system_set_dev_sysctl("/sys/class/net/%s/brport/hairpin_mode", dev
->ifname
, val
);
346 static void system_bridge_set_multicast_router(struct device
*dev
, const char *val
, bool bridge
)
348 system_set_dev_sysctl(bridge
? "/sys/class/net/%s/bridge/multicast_router" :
349 "/sys/class/net/%s/brport/multicast_router",
353 static void system_bridge_set_robustness(struct device
*dev
, const char *val
)
355 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_startup_query_count",
357 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_last_member_count",
361 static void system_bridge_set_query_interval(struct device
*dev
, const char *val
)
363 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_query_interval",
367 static void system_bridge_set_query_response_interval(struct device
*dev
, const char *val
)
369 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_query_response_interval",
373 static void system_bridge_set_last_member_interval(struct device
*dev
, const char *val
)
375 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_last_member_interval",
379 static void system_bridge_set_membership_interval(struct device
*dev
, const char *val
)
381 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_membership_interval",
385 static void system_bridge_set_other_querier_timeout(struct device
*dev
, const char *val
)
387 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier_interval",
391 static void system_bridge_set_startup_query_interval(struct device
*dev
, const char *val
)
393 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_startup_query_interval",
397 static void system_bridge_set_learning(struct device
*dev
, const char *val
)
399 system_set_dev_sysctl("/sys/class/net/%s/brport/learning", dev
->ifname
, val
);
402 static void system_bridge_set_unicast_flood(struct device
*dev
, const char *val
)
404 system_set_dev_sysctl("/sys/class/net/%s/brport/unicast_flood", dev
->ifname
, val
);
407 static void system_set_sendredirects(struct device
*dev
, const char *val
)
409 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/send_redirects", dev
->ifname
, val
);
412 static int system_get_sysctl(const char *path
, char *buf
, const size_t buf_sz
)
414 int fd
= -1, ret
= -1;
416 fd
= open(path
, O_RDONLY
);
420 ssize_t len
= read(fd
, buf
, buf_sz
- 1);
434 system_get_dev_sysctl(const char *path
, const char *device
, char *buf
, const size_t buf_sz
)
436 snprintf(dev_buf
, sizeof(dev_buf
), path
, device
);
437 return system_get_sysctl(dev_buf
, buf
, buf_sz
);
440 static int system_get_disable_ipv6(struct device
*dev
, char *buf
, const size_t buf_sz
)
442 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6",
443 dev
->ifname
, buf
, buf_sz
);
446 static int system_get_rpfilter(struct device
*dev
, char *buf
, const size_t buf_sz
)
448 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/rp_filter",
449 dev
->ifname
, buf
, buf_sz
);
452 static int system_get_acceptlocal(struct device
*dev
, char *buf
, const size_t buf_sz
)
454 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/accept_local",
455 dev
->ifname
, buf
, buf_sz
);
458 static int system_get_igmpversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
460 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/force_igmp_version",
461 dev
->ifname
, buf
, buf_sz
);
464 static int system_get_mldversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
466 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/force_mld_version",
467 dev
->ifname
, buf
, buf_sz
);
470 static int system_get_neigh4reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
472 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/base_reachable_time_ms",
473 dev
->ifname
, buf
, buf_sz
);
476 static int system_get_neigh6reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
478 return system_get_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/base_reachable_time_ms",
479 dev
->ifname
, buf
, buf_sz
);
482 static int system_get_neigh4gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
484 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/gc_stale_time",
485 dev
->ifname
, buf
, buf_sz
);
488 static int system_get_neigh6gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
490 return system_get_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/gc_stale_time",
491 dev
->ifname
, buf
, buf_sz
);
494 static int system_get_neigh4locktime(struct device
*dev
, char *buf
, const size_t buf_sz
)
496 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/locktime",
497 dev
->ifname
, buf
, buf_sz
);
500 static int system_get_dadtransmits(struct device
*dev
, char *buf
, const size_t buf_sz
)
502 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/dad_transmits",
503 dev
->ifname
, buf
, buf_sz
);
506 static int system_get_sendredirects(struct device
*dev
, char *buf
, const size_t buf_sz
)
508 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/send_redirects",
509 dev
->ifname
, buf
, buf_sz
);
512 // Evaluate netlink messages
513 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
)
515 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
516 struct nlattr
*nla
[__IFLA_MAX
];
520 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
523 nlmsg_parse(nh
, sizeof(struct ifinfomsg
), nla
, __IFLA_MAX
- 1, NULL
);
524 if (!nla
[IFLA_IFNAME
])
527 struct device
*dev
= device_find(nla_data(nla
[IFLA_IFNAME
]));
531 if (!system_get_dev_sysctl("/sys/class/net/%s/carrier", dev
->ifname
, buf
, sizeof(buf
)))
532 link_state
= strtoul(buf
, NULL
, 0);
534 device_set_link(dev
, link_state
? true : false);
541 handle_hotplug_msg(char *data
, int size
)
543 const char *subsystem
= NULL
, *interface
= NULL
;
544 char *cur
, *end
, *sep
;
549 if (!strncmp(data
, "add@", 4))
551 else if (!strncmp(data
, "remove@", 7))
556 skip
= strlen(data
) + 1;
559 for (cur
= data
+ skip
; cur
< end
; cur
+= skip
) {
560 skip
= strlen(cur
) + 1;
562 sep
= strchr(cur
, '=');
567 if (!strcmp(cur
, "INTERFACE"))
569 else if (!strcmp(cur
, "SUBSYSTEM")) {
571 if (strcmp(subsystem
, "net") != 0)
574 if (subsystem
&& interface
)
580 dev
= device_find(interface
);
584 if (dev
->type
!= &simple_device_type
)
587 if (add
&& system_if_force_external(dev
->ifname
))
590 device_set_present(dev
, add
);
594 handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
)
596 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
597 struct sockaddr_nl nla
;
598 unsigned char *buf
= NULL
;
601 while ((size
= nl_recv(ev
->sock
, &nla
, &buf
, NULL
)) > 0) {
603 handle_hotplug_msg((char *) buf
, size
);
609 static int system_rtnl_call(struct nl_msg
*msg
)
613 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
619 return nl_wait_for_ack(sock_rtnl
);
622 int system_bridge_delbr(struct device
*bridge
)
624 return ioctl(sock_ioctl
, SIOCBRDELBR
, bridge
->ifname
);
627 static int system_bridge_if(const char *bridge
, struct device
*dev
, int cmd
, void *data
)
631 memset(&ifr
, 0, sizeof(ifr
));
633 ifr
.ifr_ifindex
= dev
->ifindex
;
636 strncpy(ifr
.ifr_name
, bridge
, sizeof(ifr
.ifr_name
));
637 return ioctl(sock_ioctl
, cmd
, &ifr
);
640 static bool system_is_bridge(const char *name
, char *buf
, int buflen
)
644 snprintf(buf
, buflen
, "/sys/devices/virtual/net/%s/bridge", name
);
645 if (stat(buf
, &st
) < 0)
651 static char *system_get_bridge(const char *name
, char *buf
, int buflen
)
657 snprintf(buf
, buflen
, "/sys/devices/virtual/net/*/brif/%s/bridge", name
);
658 if (glob(buf
, GLOB_NOSORT
, NULL
, &gl
) < 0)
662 len
= readlink(gl
.gl_pathv
[0], buf
, buflen
);
670 path
= strrchr(buf
, '/');
678 system_bridge_set_wireless(struct device
*bridge
, struct device
*dev
)
680 bool mcast_to_ucast
= dev
->wireless_ap
;
683 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
&&
684 !bridge
->settings
.multicast_to_unicast
)
685 mcast_to_ucast
= false;
687 if (!mcast_to_ucast
|| dev
->wireless_isolate
)
690 system_bridge_set_multicast_to_unicast(dev
, mcast_to_ucast
? "1" : "0");
691 system_bridge_set_hairpin_mode(dev
, hairpin
? "1" : "0");
694 int system_bridge_addif(struct device
*bridge
, struct device
*dev
)
700 oldbr
= system_get_bridge(dev
->ifname
, dev_buf
, sizeof(dev_buf
));
701 if (!oldbr
|| strcmp(oldbr
, bridge
->ifname
) != 0)
702 ret
= system_bridge_if(bridge
->ifname
, dev
, SIOCBRADDIF
, NULL
);
705 system_bridge_set_wireless(bridge
, dev
);
707 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
708 snprintf(buf
, sizeof(buf
), "%i", dev
->settings
.multicast_router
);
709 system_bridge_set_multicast_router(dev
, buf
, false);
712 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
&&
713 dev
->settings
.multicast_fast_leave
)
714 system_bridge_set_multicast_fast_leave(dev
, "1");
716 if (dev
->settings
.flags
& DEV_OPT_LEARNING
&&
717 !dev
->settings
.learning
)
718 system_bridge_set_learning(dev
, "0");
720 if (dev
->settings
.flags
& DEV_OPT_UNICAST_FLOOD
&&
721 !dev
->settings
.unicast_flood
)
722 system_bridge_set_unicast_flood(dev
, "0");
727 int system_bridge_delif(struct device
*bridge
, struct device
*dev
)
729 return system_bridge_if(bridge
->ifname
, dev
, SIOCBRDELIF
, NULL
);
732 int system_if_resolve(struct device
*dev
)
735 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
736 if (!ioctl(sock_ioctl
, SIOCGIFINDEX
, &ifr
))
737 return ifr
.ifr_ifindex
;
742 static int system_if_flags(const char *ifname
, unsigned add
, unsigned rem
)
746 memset(&ifr
, 0, sizeof(ifr
));
747 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
));
748 ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
);
749 ifr
.ifr_flags
|= add
;
750 ifr
.ifr_flags
&= ~rem
;
751 return ioctl(sock_ioctl
, SIOCSIFFLAGS
, &ifr
);
763 static bool check_ifaddr(struct nlmsghdr
*hdr
, int ifindex
)
765 struct ifaddrmsg
*ifa
= NLMSG_DATA(hdr
);
767 return ifa
->ifa_index
== ifindex
;
770 static bool check_route(struct nlmsghdr
*hdr
, int ifindex
)
772 struct rtmsg
*r
= NLMSG_DATA(hdr
);
773 struct nlattr
*tb
[__RTA_MAX
];
775 if (r
->rtm_protocol
== RTPROT_KERNEL
&&
776 r
->rtm_family
== AF_INET6
)
779 nlmsg_parse(hdr
, sizeof(struct rtmsg
), tb
, __RTA_MAX
- 1, NULL
);
783 return *(int *)RTA_DATA(tb
[RTA_OIF
]) == ifindex
;
786 static bool check_rule(struct nlmsghdr
*hdr
, int ifindex
)
791 static int cb_clear_event(struct nl_msg
*msg
, void *arg
)
793 struct clear_data
*clr
= arg
;
794 struct nlmsghdr
*hdr
= nlmsg_hdr(msg
);
795 bool (*cb
)(struct nlmsghdr
*, int ifindex
);
801 if (hdr
->nlmsg_type
!= RTM_NEWADDR
)
808 if (hdr
->nlmsg_type
!= RTM_NEWROUTE
)
815 if (hdr
->nlmsg_type
!= RTM_NEWRULE
)
824 if (!cb(hdr
, clr
->dev
? clr
->dev
->ifindex
: 0))
827 if (type
== RTM_DELRULE
)
828 D(SYSTEM
, "Remove a rule\n");
830 D(SYSTEM
, "Remove %s from device %s\n",
831 type
== RTM_DELADDR
? "an address" : "a route",
833 memcpy(nlmsg_hdr(clr
->msg
), hdr
, hdr
->nlmsg_len
);
834 hdr
= nlmsg_hdr(clr
->msg
);
835 hdr
->nlmsg_type
= type
;
836 hdr
->nlmsg_flags
= NLM_F_REQUEST
;
838 nl_socket_disable_auto_ack(sock_rtnl
);
839 nl_send_auto_complete(sock_rtnl
, clr
->msg
);
840 nl_socket_enable_auto_ack(sock_rtnl
);
846 cb_finish_event(struct nl_msg
*msg
, void *arg
)
854 error_handler(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
857 *pending
= err
->error
;
862 system_if_clear_entries(struct device
*dev
, int type
, int af
)
864 struct clear_data clr
;
865 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
868 .rtm_flags
= RTM_F_CLONED
,
870 int flags
= NLM_F_DUMP
;
879 clr
.size
= sizeof(struct rtgenmsg
);
882 clr
.size
= sizeof(struct rtmsg
);
891 clr
.msg
= nlmsg_alloc_simple(type
, flags
);
895 nlmsg_append(clr
.msg
, &rtm
, clr
.size
, 0);
896 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_clear_event
, &clr
);
897 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, cb_finish_event
, &pending
);
898 nl_cb_err(cb
, NL_CB_CUSTOM
, error_handler
, &pending
);
900 nl_send_auto_complete(sock_rtnl
, clr
.msg
);
902 nl_recvmsgs(sock_rtnl
, cb
);
910 * Clear bridge (membership) state and bring down device
912 void system_if_clear_state(struct device
*dev
)
914 static char buf
[256];
917 device_set_ifindex(dev
, system_if_resolve(dev
));
918 if (dev
->external
|| !dev
->ifindex
)
921 system_if_flags(dev
->ifname
, 0, IFF_UP
);
923 if (system_is_bridge(dev
->ifname
, buf
, sizeof(buf
))) {
924 D(SYSTEM
, "Delete existing bridge named '%s'\n", dev
->ifname
);
925 system_bridge_delbr(dev
);
929 bridge
= system_get_bridge(dev
->ifname
, buf
, sizeof(buf
));
931 D(SYSTEM
, "Remove device '%s' from bridge '%s'\n", dev
->ifname
, bridge
);
932 system_bridge_if(bridge
, dev
, SIOCBRDELIF
, NULL
);
935 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET
);
936 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET
);
937 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET6
);
938 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET6
);
939 system_set_disable_ipv6(dev
, "0");
942 static inline unsigned long
943 sec_to_jiffies(int val
)
945 return (unsigned long) val
* 100;
948 static void system_bridge_conf_multicast_deps(struct device
*bridge
,
949 struct bridge_config
*cfg
,
955 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
||
956 cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
||
957 cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
958 val
= cfg
->robustness
* cfg
->query_interval
+
959 cfg
->query_response_interval
;
961 snprintf(buf
, buf_len
, "%i", val
);
962 system_bridge_set_membership_interval(bridge
, buf
);
964 val
= cfg
->robustness
* cfg
->query_interval
+
965 cfg
->query_response_interval
/ 2;
967 snprintf(buf
, buf_len
, "%i", val
);
968 system_bridge_set_other_querier_timeout(bridge
, buf
);
971 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
972 val
= cfg
->query_interval
/ 4;
974 snprintf(buf
, buf_len
, "%i", val
);
975 system_bridge_set_startup_query_interval(bridge
, buf
);
979 static void system_bridge_conf_multicast(struct device
*bridge
,
980 struct bridge_config
*cfg
,
984 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_snooping",
985 bridge
->ifname
, cfg
->igmp_snoop
? "1" : "0");
987 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier",
988 bridge
->ifname
, cfg
->multicast_querier
? "1" : "0");
990 snprintf(buf
, buf_len
, "%i", cfg
->hash_max
);
991 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/hash_max",
992 bridge
->ifname
, buf
);
994 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
995 snprintf(buf
, buf_len
, "%i", bridge
->settings
.multicast_router
);
996 system_bridge_set_multicast_router(bridge
, buf
, true);
999 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
) {
1000 snprintf(buf
, buf_len
, "%i", cfg
->robustness
);
1001 system_bridge_set_robustness(bridge
, buf
);
1004 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1005 snprintf(buf
, buf_len
, "%i", cfg
->query_interval
);
1006 system_bridge_set_query_interval(bridge
, buf
);
1009 if (cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
1010 snprintf(buf
, buf_len
, "%i", cfg
->query_response_interval
);
1011 system_bridge_set_query_response_interval(bridge
, buf
);
1014 if (cfg
->flags
& BRIDGE_OPT_LAST_MEMBER_INTERVAL
) {
1015 snprintf(buf
, buf_len
, "%i", cfg
->last_member_interval
);
1016 system_bridge_set_last_member_interval(bridge
, buf
);
1019 system_bridge_conf_multicast_deps(bridge
, cfg
, buf
, buf_len
);
1022 int system_bridge_addbr(struct device
*bridge
, struct bridge_config
*cfg
)
1025 unsigned long args
[4] = {};
1027 if (ioctl(sock_ioctl
, SIOCBRADDBR
, bridge
->ifname
) < 0)
1030 args
[0] = BRCTL_SET_BRIDGE_STP_STATE
;
1031 args
[1] = !!cfg
->stp
;
1032 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1034 args
[0] = BRCTL_SET_BRIDGE_FORWARD_DELAY
;
1035 args
[1] = sec_to_jiffies(cfg
->forward_delay
);
1036 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1038 system_bridge_conf_multicast(bridge
, cfg
, buf
, sizeof(buf
));
1040 args
[0] = BRCTL_SET_BRIDGE_PRIORITY
;
1041 args
[1] = cfg
->priority
;
1042 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1044 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
) {
1045 args
[0] = BRCTL_SET_AGEING_TIME
;
1046 args
[1] = sec_to_jiffies(cfg
->ageing_time
);
1047 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1050 if (cfg
->flags
& BRIDGE_OPT_HELLO_TIME
) {
1051 args
[0] = BRCTL_SET_BRIDGE_HELLO_TIME
;
1052 args
[1] = sec_to_jiffies(cfg
->hello_time
);
1053 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1056 if (cfg
->flags
& BRIDGE_OPT_MAX_AGE
) {
1057 args
[0] = BRCTL_SET_BRIDGE_MAX_AGE
;
1058 args
[1] = sec_to_jiffies(cfg
->max_age
);
1059 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1065 int system_macvlan_add(struct device
*macvlan
, struct device
*dev
, struct macvlan_config
*cfg
)
1068 struct nlattr
*linkinfo
, *data
;
1069 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
1071 static const struct {
1073 enum macvlan_mode val
;
1075 { "private", MACVLAN_MODE_PRIVATE
},
1076 { "vepa", MACVLAN_MODE_VEPA
},
1077 { "bridge", MACVLAN_MODE_BRIDGE
},
1078 { "passthru", MACVLAN_MODE_PASSTHRU
},
1081 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1086 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1088 if (cfg
->flags
& MACVLAN_OPT_MACADDR
)
1089 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1090 nla_put_string(msg
, IFLA_IFNAME
, macvlan
->ifname
);
1091 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1093 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1094 goto nla_put_failure
;
1096 nla_put_string(msg
, IFLA_INFO_KIND
, "macvlan");
1098 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1099 goto nla_put_failure
;
1102 for (i
= 0; i
< ARRAY_SIZE(modes
); i
++) {
1103 if (strcmp(cfg
->mode
, modes
[i
].name
) != 0)
1106 nla_put_u32(msg
, IFLA_MACVLAN_MODE
, modes
[i
].val
);
1111 nla_nest_end(msg
, data
);
1112 nla_nest_end(msg
, linkinfo
);
1114 rv
= system_rtnl_call(msg
);
1116 D(SYSTEM
, "Error adding macvlan '%s' over '%s': %d\n", macvlan
->ifname
, dev
->ifname
, rv
);
1125 static int system_link_del(const char *ifname
)
1128 struct ifinfomsg iim
= {
1129 .ifi_family
= AF_UNSPEC
,
1133 msg
= nlmsg_alloc_simple(RTM_DELLINK
, NLM_F_REQUEST
);
1138 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1139 nla_put_string(msg
, IFLA_IFNAME
, ifname
);
1140 return system_rtnl_call(msg
);
1143 int system_macvlan_del(struct device
*macvlan
)
1145 return system_link_del(macvlan
->ifname
);
1148 int system_veth_add(struct device
*veth
, struct veth_config
*cfg
)
1151 struct ifinfomsg empty_iim
= {};
1152 struct nlattr
*linkinfo
, *data
, *veth_info
;
1155 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1160 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1162 if (cfg
->flags
& VETH_OPT_MACADDR
)
1163 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1164 nla_put_string(msg
, IFLA_IFNAME
, veth
->ifname
);
1166 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1167 goto nla_put_failure
;
1169 nla_put_string(msg
, IFLA_INFO_KIND
, "veth");
1171 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1172 goto nla_put_failure
;
1174 if (!(veth_info
= nla_nest_start(msg
, VETH_INFO_PEER
)))
1175 goto nla_put_failure
;
1177 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1179 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1180 nla_put_string(msg
, IFLA_IFNAME
, cfg
->peer_name
);
1181 if (cfg
->flags
& VETH_OPT_PEER_MACADDR
)
1182 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->peer_macaddr
), cfg
->peer_macaddr
);
1184 nla_nest_end(msg
, veth_info
);
1185 nla_nest_end(msg
, data
);
1186 nla_nest_end(msg
, linkinfo
);
1188 rv
= system_rtnl_call(msg
);
1190 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1191 D(SYSTEM
, "Error adding veth '%s' with peer '%s': %d\n", veth
->ifname
, cfg
->peer_name
, rv
);
1193 D(SYSTEM
, "Error adding veth '%s': %d\n", veth
->ifname
, rv
);
1203 int system_veth_del(struct device
*veth
)
1205 return system_link_del(veth
->ifname
);
1208 static int system_vlan(struct device
*dev
, int id
)
1210 struct vlan_ioctl_args ifr
= {
1211 .cmd
= SET_VLAN_NAME_TYPE_CMD
,
1212 .u
.name_type
= VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
,
1215 ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
1218 ifr
.cmd
= DEL_VLAN_CMD
;
1221 ifr
.cmd
= ADD_VLAN_CMD
;
1224 strncpy(ifr
.device1
, dev
->ifname
, sizeof(ifr
.device1
));
1225 return ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
1228 int system_vlan_add(struct device
*dev
, int id
)
1230 return system_vlan(dev
, id
);
1233 int system_vlan_del(struct device
*dev
)
1235 return system_vlan(dev
, -1);
1238 int system_vlandev_add(struct device
*vlandev
, struct device
*dev
, struct vlandev_config
*cfg
)
1241 struct nlattr
*linkinfo
, *data
;
1242 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
};
1245 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1250 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1251 nla_put_string(msg
, IFLA_IFNAME
, vlandev
->ifname
);
1252 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1254 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1255 goto nla_put_failure
;
1257 nla_put_string(msg
, IFLA_INFO_KIND
, "vlan");
1259 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1260 goto nla_put_failure
;
1262 nla_put_u16(msg
, IFLA_VLAN_ID
, cfg
->vid
);
1264 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
1265 nla_put_u16(msg
, IFLA_VLAN_PROTOCOL
, htons(cfg
->proto
));
1267 if(cfg
->proto
== VLAN_PROTO_8021AD
)
1268 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
);
1271 nla_nest_end(msg
, data
);
1272 nla_nest_end(msg
, linkinfo
);
1274 rv
= system_rtnl_call(msg
);
1276 D(SYSTEM
, "Error adding vlandev '%s' over '%s': %d\n", vlandev
->ifname
, dev
->ifname
, rv
);
1285 int system_vlandev_del(struct device
*vlandev
)
1287 return system_link_del(vlandev
->ifname
);
1291 system_if_get_settings(struct device
*dev
, struct device_settings
*s
)
1296 memset(&ifr
, 0, sizeof(ifr
));
1297 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
1299 if (ioctl(sock_ioctl
, SIOCGIFMTU
, &ifr
) == 0) {
1300 s
->mtu
= ifr
.ifr_mtu
;
1301 s
->flags
|= DEV_OPT_MTU
;
1304 s
->mtu6
= system_update_ipv6_mtu(dev
, 0);
1306 s
->flags
|= DEV_OPT_MTU6
;
1308 if (ioctl(sock_ioctl
, SIOCGIFTXQLEN
, &ifr
) == 0) {
1309 s
->txqueuelen
= ifr
.ifr_qlen
;
1310 s
->flags
|= DEV_OPT_TXQUEUELEN
;
1313 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0) {
1314 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
1315 s
->flags
|= DEV_OPT_MACADDR
;
1318 if (!system_get_disable_ipv6(dev
, buf
, sizeof(buf
))) {
1319 s
->ipv6
= !strtoul(buf
, NULL
, 0);
1320 s
->flags
|= DEV_OPT_IPV6
;
1323 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) == 0) {
1324 s
->promisc
= ifr
.ifr_flags
& IFF_PROMISC
;
1325 s
->flags
|= DEV_OPT_PROMISC
;
1327 s
->multicast
= ifr
.ifr_flags
& IFF_MULTICAST
;
1328 s
->flags
|= DEV_OPT_MULTICAST
;
1331 if (!system_get_rpfilter(dev
, buf
, sizeof(buf
))) {
1332 s
->rpfilter
= strtoul(buf
, NULL
, 0);
1333 s
->flags
|= DEV_OPT_RPFILTER
;
1336 if (!system_get_acceptlocal(dev
, buf
, sizeof(buf
))) {
1337 s
->acceptlocal
= strtoul(buf
, NULL
, 0);
1338 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
1341 if (!system_get_igmpversion(dev
, buf
, sizeof(buf
))) {
1342 s
->igmpversion
= strtoul(buf
, NULL
, 0);
1343 s
->flags
|= DEV_OPT_IGMPVERSION
;
1346 if (!system_get_mldversion(dev
, buf
, sizeof(buf
))) {
1347 s
->mldversion
= strtoul(buf
, NULL
, 0);
1348 s
->flags
|= DEV_OPT_MLDVERSION
;
1351 if (!system_get_neigh4reachabletime(dev
, buf
, sizeof(buf
))) {
1352 s
->neigh4reachabletime
= strtoul(buf
, NULL
, 0);
1353 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1356 if (!system_get_neigh6reachabletime(dev
, buf
, sizeof(buf
))) {
1357 s
->neigh6reachabletime
= strtoul(buf
, NULL
, 0);
1358 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1361 if (!system_get_neigh4locktime(dev
, buf
, sizeof(buf
))) {
1362 s
->neigh4locktime
= strtoul(buf
, NULL
, 0);
1363 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
1366 if (!system_get_neigh4gcstaletime(dev
, buf
, sizeof(buf
))) {
1367 s
->neigh4gcstaletime
= strtoul(buf
, NULL
, 0);
1368 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1371 if (!system_get_neigh6gcstaletime(dev
, buf
, sizeof(buf
))) {
1372 s
->neigh6gcstaletime
= strtoul(buf
, NULL
, 0);
1373 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1376 if (!system_get_dadtransmits(dev
, buf
, sizeof(buf
))) {
1377 s
->dadtransmits
= strtoul(buf
, NULL
, 0);
1378 s
->flags
|= DEV_OPT_DADTRANSMITS
;
1381 if (!system_get_sendredirects(dev
, buf
, sizeof(buf
))) {
1382 s
->sendredirects
= strtoul(buf
, NULL
, 0);
1383 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
1388 system_if_set_rps_xps_val(const char *path
, int val
)
1394 if (glob(path
, 0, NULL
, &gl
))
1397 snprintf(val_buf
, sizeof(val_buf
), "%x", val
);
1398 for (i
= 0; i
< gl
.gl_pathc
; i
++)
1399 system_set_sysctl(gl
.gl_pathv
[i
], val_buf
);
1405 system_if_apply_rps_xps(struct device
*dev
, struct device_settings
*s
)
1407 long n_cpus
= sysconf(_SC_NPROCESSORS_ONLN
);
1413 val
= (1 << n_cpus
) - 1;
1414 snprintf(dev_buf
, sizeof(dev_buf
), "/sys/class/net/%s/queues/*/rps_cpus", dev
->ifname
);
1415 system_if_set_rps_xps_val(dev_buf
, s
->rps
? val
: 0);
1417 snprintf(dev_buf
, sizeof(dev_buf
), "/sys/class/net/%s/queues/*/xps_cpus", dev
->ifname
);
1418 system_if_set_rps_xps_val(dev_buf
, s
->xps
? val
: 0);
1422 system_if_apply_settings(struct device
*dev
, struct device_settings
*s
, unsigned int apply_mask
)
1427 memset(&ifr
, 0, sizeof(ifr
));
1428 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
1429 if (s
->flags
& DEV_OPT_MTU
& apply_mask
) {
1430 ifr
.ifr_mtu
= s
->mtu
;
1431 if (ioctl(sock_ioctl
, SIOCSIFMTU
, &ifr
) < 0)
1432 s
->flags
&= ~DEV_OPT_MTU
;
1434 if (s
->flags
& DEV_OPT_MTU6
& apply_mask
) {
1435 system_update_ipv6_mtu(dev
, s
->mtu6
);
1437 if (s
->flags
& DEV_OPT_TXQUEUELEN
& apply_mask
) {
1438 ifr
.ifr_qlen
= s
->txqueuelen
;
1439 if (ioctl(sock_ioctl
, SIOCSIFTXQLEN
, &ifr
) < 0)
1440 s
->flags
&= ~DEV_OPT_TXQUEUELEN
;
1442 if ((s
->flags
& DEV_OPT_MACADDR
& apply_mask
) && !dev
->external
) {
1443 ifr
.ifr_hwaddr
.sa_family
= ARPHRD_ETHER
;
1444 memcpy(&ifr
.ifr_hwaddr
.sa_data
, s
->macaddr
, sizeof(s
->macaddr
));
1445 if (ioctl(sock_ioctl
, SIOCSIFHWADDR
, &ifr
) < 0)
1446 s
->flags
&= ~DEV_OPT_MACADDR
;
1448 if (s
->flags
& DEV_OPT_IPV6
& apply_mask
)
1449 system_set_disable_ipv6(dev
, s
->ipv6
? "0" : "1");
1450 if (s
->flags
& DEV_OPT_PROMISC
& apply_mask
) {
1451 if (system_if_flags(dev
->ifname
, s
->promisc
? IFF_PROMISC
: 0,
1452 !s
->promisc
? IFF_PROMISC
: 0) < 0)
1453 s
->flags
&= ~DEV_OPT_PROMISC
;
1455 if (s
->flags
& DEV_OPT_RPFILTER
& apply_mask
) {
1456 snprintf(buf
, sizeof(buf
), "%d", s
->rpfilter
);
1457 system_set_rpfilter(dev
, buf
);
1459 if (s
->flags
& DEV_OPT_ACCEPTLOCAL
& apply_mask
)
1460 system_set_acceptlocal(dev
, s
->acceptlocal
? "1" : "0");
1461 if (s
->flags
& DEV_OPT_IGMPVERSION
& apply_mask
) {
1462 snprintf(buf
, sizeof(buf
), "%d", s
->igmpversion
);
1463 system_set_igmpversion(dev
, buf
);
1465 if (s
->flags
& DEV_OPT_MLDVERSION
& apply_mask
) {
1466 snprintf(buf
, sizeof(buf
), "%d", s
->mldversion
);
1467 system_set_mldversion(dev
, buf
);
1469 if (s
->flags
& DEV_OPT_NEIGHREACHABLETIME
& apply_mask
) {
1470 snprintf(buf
, sizeof(buf
), "%d", s
->neigh4reachabletime
);
1471 system_set_neigh4reachabletime(dev
, buf
);
1472 snprintf(buf
, sizeof(buf
), "%d", s
->neigh6reachabletime
);
1473 system_set_neigh6reachabletime(dev
, buf
);
1475 if (s
->flags
& DEV_OPT_NEIGHLOCKTIME
& apply_mask
) {
1476 snprintf(buf
, sizeof(buf
), "%d", s
->neigh4locktime
);
1477 system_set_neigh4locktime(dev
, buf
);
1479 if (s
->flags
& DEV_OPT_NEIGHGCSTALETIME
& apply_mask
) {
1480 snprintf(buf
, sizeof(buf
), "%d", s
->neigh4gcstaletime
);
1481 system_set_neigh4gcstaletime(dev
, buf
);
1482 snprintf(buf
, sizeof(buf
), "%d", s
->neigh6gcstaletime
);
1483 system_set_neigh6gcstaletime(dev
, buf
);
1485 if (s
->flags
& DEV_OPT_DADTRANSMITS
& apply_mask
) {
1486 snprintf(buf
, sizeof(buf
), "%d", s
->dadtransmits
);
1487 system_set_dadtransmits(dev
, buf
);
1489 if (s
->flags
& DEV_OPT_MULTICAST
& apply_mask
) {
1490 if (system_if_flags(dev
->ifname
, s
->multicast
? IFF_MULTICAST
: 0,
1491 !s
->multicast
? IFF_MULTICAST
: 0) < 0)
1492 s
->flags
&= ~DEV_OPT_MULTICAST
;
1494 if (s
->flags
& DEV_OPT_SENDREDIRECTS
& apply_mask
)
1495 system_set_sendredirects(dev
, s
->sendredirects
? "1" : "0");
1497 system_if_apply_rps_xps(dev
, s
);
1500 int system_if_up(struct device
*dev
)
1502 system_if_get_settings(dev
, &dev
->orig_settings
);
1503 /* Only keep orig settings based on what needs to be set */
1504 dev
->orig_settings
.valid_flags
= dev
->orig_settings
.flags
;
1505 dev
->orig_settings
.flags
&= dev
->settings
.flags
;
1506 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
1507 return system_if_flags(dev
->ifname
, IFF_UP
, 0);
1510 int system_if_down(struct device
*dev
)
1512 int ret
= system_if_flags(dev
->ifname
, 0, IFF_UP
);
1513 system_if_apply_settings(dev
, &dev
->orig_settings
, dev
->orig_settings
.flags
);
1517 struct if_check_data
{
1523 #ifndef IFF_LOWER_UP
1524 #define IFF_LOWER_UP 0x10000
1527 static int cb_if_check_valid(struct nl_msg
*msg
, void *arg
)
1529 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
1530 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
1531 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1533 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
1536 device_set_present(chk
->dev
, ifi
->ifi_index
> 0 ? true : false);
1537 device_set_link(chk
->dev
, ifi
->ifi_flags
& IFF_LOWER_UP
? true : false);
1542 static int cb_if_check_ack(struct nl_msg
*msg
, void *arg
)
1544 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1549 static int cb_if_check_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1551 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1553 device_set_present(chk
->dev
, false);
1554 device_set_link(chk
->dev
, false);
1555 chk
->pending
= err
->error
;
1560 int system_if_check(struct device
*dev
)
1562 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1564 struct ifinfomsg ifi
= {
1565 .ifi_family
= AF_UNSPEC
,
1568 struct if_check_data chk
= {
1574 msg
= nlmsg_alloc_simple(RTM_GETLINK
, 0);
1578 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
1579 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
1582 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_check_valid
, &chk
);
1583 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_check_ack
, &chk
);
1584 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_check_error
, &chk
);
1586 nl_send_auto_complete(sock_rtnl
, msg
);
1587 while (chk
.pending
> 0)
1588 nl_recvmsgs(sock_rtnl
, cb
);
1600 system_if_get_parent(struct device
*dev
)
1602 char buf
[64], *devname
;
1603 int ifindex
, iflink
, len
;
1606 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/iflink", dev
->ifname
);
1607 f
= fopen(buf
, "r");
1611 len
= fread(buf
, 1, sizeof(buf
) - 1, f
);
1618 iflink
= strtoul(buf
, NULL
, 0);
1619 ifindex
= system_if_resolve(dev
);
1620 if (!iflink
|| iflink
== ifindex
)
1623 devname
= if_indextoname(iflink
, buf
);
1627 return device_get(devname
, true);
1631 read_string_file(int dir_fd
, const char *file
, char *buf
, int len
)
1637 fd
= openat(dir_fd
, file
, O_RDONLY
);
1642 len
= read(fd
, buf
, len
- 1);
1646 } else if (len
> 0) {
1649 c
= strchr(buf
, '\n');
1662 read_uint64_file(int dir_fd
, const char *file
, uint64_t *val
)
1667 ret
= read_string_file(dir_fd
, file
, buf
, sizeof(buf
));
1669 *val
= strtoull(buf
, NULL
, 0);
1674 /* Assume advertised flags == supported flags */
1675 static const struct {
1678 } ethtool_link_modes
[] = {
1679 { ADVERTISED_10baseT_Half
, "10H" },
1680 { ADVERTISED_10baseT_Full
, "10F" },
1681 { ADVERTISED_100baseT_Half
, "100H" },
1682 { ADVERTISED_100baseT_Full
, "100F" },
1683 { ADVERTISED_1000baseT_Half
, "1000H" },
1684 { ADVERTISED_1000baseT_Full
, "1000F" },
1687 static void system_add_link_modes(struct blob_buf
*b
, __u32 mask
)
1690 for (i
= 0; i
< ARRAY_SIZE(ethtool_link_modes
); i
++) {
1691 if (mask
& ethtool_link_modes
[i
].mask
)
1692 blobmsg_add_string(b
, NULL
, ethtool_link_modes
[i
].name
);
1697 system_if_force_external(const char *ifname
)
1702 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/phy80211", ifname
);
1703 return stat(buf
, &s
) == 0;
1707 system_if_dump_info(struct device
*dev
, struct blob_buf
*b
)
1709 struct ethtool_cmd ecmd
;
1715 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s", dev
->ifname
);
1716 dir_fd
= open(buf
, O_DIRECTORY
);
1718 memset(&ecmd
, 0, sizeof(ecmd
));
1719 memset(&ifr
, 0, sizeof(ifr
));
1720 strcpy(ifr
.ifr_name
, dev
->ifname
);
1721 ifr
.ifr_data
= (caddr_t
) &ecmd
;
1722 ecmd
.cmd
= ETHTOOL_GSET
;
1724 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) == 0) {
1725 c
= blobmsg_open_array(b
, "link-advertising");
1726 system_add_link_modes(b
, ecmd
.advertising
);
1727 blobmsg_close_array(b
, c
);
1729 c
= blobmsg_open_array(b
, "link-supported");
1730 system_add_link_modes(b
, ecmd
.supported
);
1731 blobmsg_close_array(b
, c
);
1733 s
= blobmsg_alloc_string_buffer(b
, "speed", 8);
1734 snprintf(s
, 8, "%d%c", ethtool_cmd_speed(&ecmd
),
1735 ecmd
.duplex
== DUPLEX_HALF
? 'H' : 'F');
1736 blobmsg_add_string_buffer(b
);
1744 system_if_dump_stats(struct device
*dev
, struct blob_buf
*b
)
1746 const char *const counters
[] = {
1747 "collisions", "rx_frame_errors", "tx_compressed",
1748 "multicast", "rx_length_errors", "tx_dropped",
1749 "rx_bytes", "rx_missed_errors", "tx_errors",
1750 "rx_compressed", "rx_over_errors", "tx_fifo_errors",
1751 "rx_crc_errors", "rx_packets", "tx_heartbeat_errors",
1752 "rx_dropped", "tx_aborted_errors", "tx_packets",
1753 "rx_errors", "tx_bytes", "tx_window_errors",
1754 "rx_fifo_errors", "tx_carrier_errors",
1761 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/statistics", dev
->ifname
);
1762 stats_dir
= open(buf
, O_DIRECTORY
);
1766 for (i
= 0; i
< ARRAY_SIZE(counters
); i
++)
1767 if (read_uint64_file(stats_dir
, counters
[i
], &val
))
1768 blobmsg_add_u64(b
, counters
[i
], val
);
1774 static int system_addr(struct device
*dev
, struct device_addr
*addr
, int cmd
)
1776 bool v4
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
);
1777 int alen
= v4
? 4 : 16;
1778 unsigned int flags
= 0;
1779 struct ifaddrmsg ifa
= {
1780 .ifa_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
1781 .ifa_prefixlen
= addr
->mask
,
1782 .ifa_index
= dev
->ifindex
,
1786 if (cmd
== RTM_NEWADDR
)
1787 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
1789 msg
= nlmsg_alloc_simple(cmd
, flags
);
1793 nlmsg_append(msg
, &ifa
, sizeof(ifa
), 0);
1794 nla_put(msg
, IFA_LOCAL
, alen
, &addr
->addr
);
1796 if (addr
->broadcast
)
1797 nla_put_u32(msg
, IFA_BROADCAST
, addr
->broadcast
);
1798 if (addr
->point_to_point
)
1799 nla_put_u32(msg
, IFA_ADDRESS
, addr
->point_to_point
);
1801 time_t now
= system_get_rtime();
1802 struct ifa_cacheinfo cinfo
= {0xffffffffU
, 0xffffffffU
, 0, 0};
1804 if (addr
->preferred_until
) {
1805 int64_t preferred
= addr
->preferred_until
- now
;
1808 else if (preferred
> UINT32_MAX
)
1809 preferred
= UINT32_MAX
;
1811 cinfo
.ifa_prefered
= preferred
;
1814 if (addr
->valid_until
) {
1815 int64_t valid
= addr
->valid_until
- now
;
1820 else if (valid
> UINT32_MAX
)
1823 cinfo
.ifa_valid
= valid
;
1826 nla_put(msg
, IFA_CACHEINFO
, sizeof(cinfo
), &cinfo
);
1828 if (cmd
== RTM_NEWADDR
&& (addr
->flags
& DEVADDR_OFFLINK
))
1829 nla_put_u32(msg
, IFA_FLAGS
, IFA_F_NOPREFIXROUTE
);
1832 return system_rtnl_call(msg
);
1835 int system_add_address(struct device
*dev
, struct device_addr
*addr
)
1837 return system_addr(dev
, addr
, RTM_NEWADDR
);
1840 int system_del_address(struct device
*dev
, struct device_addr
*addr
)
1842 return system_addr(dev
, addr
, RTM_DELADDR
);
1845 static int system_rt(struct device
*dev
, struct device_route
*route
, int cmd
)
1847 int alen
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
1849 unsigned int flags
= 0;
1852 have_gw
= !!route
->nexthop
.in
.s_addr
;
1854 have_gw
= route
->nexthop
.in6
.s6_addr32
[0] ||
1855 route
->nexthop
.in6
.s6_addr32
[1] ||
1856 route
->nexthop
.in6
.s6_addr32
[2] ||
1857 route
->nexthop
.in6
.s6_addr32
[3];
1859 unsigned int table
= (route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))
1860 ? route
->table
: RT_TABLE_MAIN
;
1862 struct rtmsg rtm
= {
1863 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
1864 .rtm_dst_len
= route
->mask
,
1865 .rtm_src_len
= route
->sourcemask
,
1866 .rtm_table
= (table
< 256) ? table
: RT_TABLE_UNSPEC
,
1867 .rtm_protocol
= (route
->flags
& DEVROUTE_PROTO
) ? route
->proto
: RTPROT_STATIC
,
1868 .rtm_scope
= RT_SCOPE_NOWHERE
,
1869 .rtm_type
= (cmd
== RTM_DELROUTE
) ? 0: RTN_UNICAST
,
1870 .rtm_flags
= (route
->flags
& DEVROUTE_ONLINK
) ? RTNH_F_ONLINK
: 0,
1874 if (cmd
== RTM_NEWROUTE
) {
1875 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
1877 if (!dev
) { // Add null-route
1878 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
1879 rtm
.rtm_type
= RTN_UNREACHABLE
;
1882 rtm
.rtm_scope
= (have_gw
) ? RT_SCOPE_UNIVERSE
: RT_SCOPE_LINK
;
1885 if (route
->flags
& DEVROUTE_TYPE
) {
1886 rtm
.rtm_type
= route
->type
;
1887 if (!(route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))) {
1888 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_BROADCAST
||
1889 rtm
.rtm_type
== RTN_NAT
|| rtm
.rtm_type
== RTN_ANYCAST
)
1890 rtm
.rtm_table
= RT_TABLE_LOCAL
;
1893 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_NAT
) {
1894 rtm
.rtm_scope
= RT_SCOPE_HOST
;
1895 } else if (rtm
.rtm_type
== RTN_BROADCAST
|| rtm
.rtm_type
== RTN_MULTICAST
||
1896 rtm
.rtm_type
== RTN_ANYCAST
) {
1897 rtm
.rtm_scope
= RT_SCOPE_LINK
;
1898 } else if (rtm
.rtm_type
== RTN_BLACKHOLE
|| rtm
.rtm_type
== RTN_UNREACHABLE
||
1899 rtm
.rtm_type
== RTN_PROHIBIT
|| rtm
.rtm_type
== RTN_FAILED_POLICY
) {
1900 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
1905 msg
= nlmsg_alloc_simple(cmd
, flags
);
1909 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
1912 nla_put(msg
, RTA_DST
, alen
, &route
->addr
);
1914 if (route
->sourcemask
) {
1915 if (rtm
.rtm_family
== AF_INET
)
1916 nla_put(msg
, RTA_PREFSRC
, alen
, &route
->source
);
1918 nla_put(msg
, RTA_SRC
, alen
, &route
->source
);
1921 if (route
->metric
> 0)
1922 nla_put_u32(msg
, RTA_PRIORITY
, route
->metric
);
1925 nla_put(msg
, RTA_GATEWAY
, alen
, &route
->nexthop
);
1928 nla_put_u32(msg
, RTA_OIF
, dev
->ifindex
);
1931 nla_put_u32(msg
, RTA_TABLE
, table
);
1933 if (route
->flags
& DEVROUTE_MTU
) {
1934 struct nlattr
*metrics
;
1936 if (!(metrics
= nla_nest_start(msg
, RTA_METRICS
)))
1937 goto nla_put_failure
;
1939 nla_put_u32(msg
, RTAX_MTU
, route
->mtu
);
1941 nla_nest_end(msg
, metrics
);
1944 return system_rtnl_call(msg
);
1951 int system_add_route(struct device
*dev
, struct device_route
*route
)
1953 return system_rt(dev
, route
, RTM_NEWROUTE
);
1956 int system_del_route(struct device
*dev
, struct device_route
*route
)
1958 return system_rt(dev
, route
, RTM_DELROUTE
);
1961 int system_flush_routes(void)
1963 const char *names
[] = {
1964 "/proc/sys/net/ipv4/route/flush",
1965 "/proc/sys/net/ipv6/route/flush"
1969 for (i
= 0; i
< ARRAY_SIZE(names
); i
++) {
1970 fd
= open(names
[i
], O_WRONLY
);
1974 if (write(fd
, "-1", 2)) {}
1980 bool system_resolve_rt_type(const char *type
, unsigned int *id
)
1982 return system_rtn_aton(type
, id
);
1985 bool system_resolve_rt_proto(const char *type
, unsigned int *id
)
1989 unsigned int n
, proto
= 256;
1991 if ((n
= strtoul(type
, &e
, 0)) >= 0 && !*e
&& e
!= type
)
1993 else if (!strcmp(type
, "unspec"))
1994 proto
= RTPROT_UNSPEC
;
1995 else if (!strcmp(type
, "kernel"))
1996 proto
= RTPROT_KERNEL
;
1997 else if (!strcmp(type
, "boot"))
1998 proto
= RTPROT_BOOT
;
1999 else if (!strcmp(type
, "static"))
2000 proto
= RTPROT_STATIC
;
2001 else if ((f
= fopen("/etc/iproute2/rt_protos", "r")) != NULL
) {
2002 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
) {
2003 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2006 n
= strtoul(e
, NULL
, 10);
2007 e
= strtok(NULL
, " \t\n");
2009 if (e
&& !strcmp(e
, type
)) {
2024 bool system_resolve_rt_table(const char *name
, unsigned int *id
)
2028 unsigned int n
, table
= RT_TABLE_UNSPEC
;
2030 /* first try to parse table as number */
2031 if ((n
= strtoul(name
, &e
, 0)) > 0 && !*e
)
2034 /* handle well known aliases */
2035 else if (!strcmp(name
, "default"))
2036 table
= RT_TABLE_DEFAULT
;
2037 else if (!strcmp(name
, "main"))
2038 table
= RT_TABLE_MAIN
;
2039 else if (!strcmp(name
, "local"))
2040 table
= RT_TABLE_LOCAL
;
2042 /* try to look up name in /etc/iproute2/rt_tables */
2043 else if ((f
= fopen("/etc/iproute2/rt_tables", "r")) != NULL
)
2045 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
)
2047 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2050 n
= strtoul(e
, NULL
, 10);
2051 e
= strtok(NULL
, " \t\n");
2053 if (e
&& !strcmp(e
, name
))
2063 if (table
== RT_TABLE_UNSPEC
)
2070 bool system_is_default_rt_table(unsigned int id
)
2072 return (id
== RT_TABLE_MAIN
);
2075 bool system_resolve_rpfilter(const char *filter
, unsigned int *id
)
2080 if (!strcmp(filter
, "strict"))
2082 else if (!strcmp(filter
, "loose"))
2085 n
= strtoul(filter
, &e
, 0);
2086 if (*e
|| e
== filter
|| n
> 2)
2094 static int system_iprule(struct iprule
*rule
, int cmd
)
2096 int alen
= ((rule
->flags
& IPRULE_FAMILY
) == IPRULE_INET4
) ? 4 : 16;
2099 struct rtmsg rtm
= {
2100 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2101 .rtm_protocol
= RTPROT_STATIC
,
2102 .rtm_scope
= RT_SCOPE_UNIVERSE
,
2103 .rtm_table
= RT_TABLE_UNSPEC
,
2104 .rtm_type
= RTN_UNSPEC
,
2108 if (cmd
== RTM_NEWRULE
)
2109 rtm
.rtm_type
= RTN_UNICAST
;
2112 rtm
.rtm_flags
|= FIB_RULE_INVERT
;
2114 if (rule
->flags
& IPRULE_SRC
)
2115 rtm
.rtm_src_len
= rule
->src_mask
;
2117 if (rule
->flags
& IPRULE_DEST
)
2118 rtm
.rtm_dst_len
= rule
->dest_mask
;
2120 if (rule
->flags
& IPRULE_TOS
)
2121 rtm
.rtm_tos
= rule
->tos
;
2123 if (rule
->flags
& IPRULE_LOOKUP
) {
2124 if (rule
->lookup
< 256)
2125 rtm
.rtm_table
= rule
->lookup
;
2128 if (rule
->flags
& IPRULE_ACTION
)
2129 rtm
.rtm_type
= rule
->action
;
2130 else if (rule
->flags
& IPRULE_GOTO
)
2131 rtm
.rtm_type
= FR_ACT_GOTO
;
2132 else if (!(rule
->flags
& (IPRULE_LOOKUP
| IPRULE_ACTION
| IPRULE_GOTO
)))
2133 rtm
.rtm_type
= FR_ACT_NOP
;
2135 msg
= nlmsg_alloc_simple(cmd
, NLM_F_REQUEST
);
2140 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
2142 if (rule
->flags
& IPRULE_IN
)
2143 nla_put(msg
, FRA_IFNAME
, strlen(rule
->in_dev
) + 1, rule
->in_dev
);
2145 if (rule
->flags
& IPRULE_OUT
)
2146 nla_put(msg
, FRA_OIFNAME
, strlen(rule
->out_dev
) + 1, rule
->out_dev
);
2148 if (rule
->flags
& IPRULE_SRC
)
2149 nla_put(msg
, FRA_SRC
, alen
, &rule
->src_addr
);
2151 if (rule
->flags
& IPRULE_DEST
)
2152 nla_put(msg
, FRA_DST
, alen
, &rule
->dest_addr
);
2154 if (rule
->flags
& IPRULE_PRIORITY
)
2155 nla_put_u32(msg
, FRA_PRIORITY
, rule
->priority
);
2156 else if (cmd
== RTM_NEWRULE
)
2157 nla_put_u32(msg
, FRA_PRIORITY
, rule
->order
);
2159 if (rule
->flags
& IPRULE_FWMARK
)
2160 nla_put_u32(msg
, FRA_FWMARK
, rule
->fwmark
);
2162 if (rule
->flags
& IPRULE_FWMASK
)
2163 nla_put_u32(msg
, FRA_FWMASK
, rule
->fwmask
);
2165 if (rule
->flags
& IPRULE_LOOKUP
) {
2166 if (rule
->lookup
>= 256)
2167 nla_put_u32(msg
, FRA_TABLE
, rule
->lookup
);
2170 if (rule
->flags
& IPRULE_GOTO
)
2171 nla_put_u32(msg
, FRA_GOTO
, rule
->gotoid
);
2173 return system_rtnl_call(msg
);
2176 int system_add_iprule(struct iprule
*rule
)
2178 return system_iprule(rule
, RTM_NEWRULE
);
2181 int system_del_iprule(struct iprule
*rule
)
2183 return system_iprule(rule
, RTM_DELRULE
);
2186 int system_flush_iprules(void)
2191 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET
);
2192 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET6
);
2194 memset(&rule
, 0, sizeof(rule
));
2197 rule
.flags
= IPRULE_INET4
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
2200 rule
.lookup
= RT_TABLE_LOCAL
;
2201 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2203 rule
.priority
= 32766;
2204 rule
.lookup
= RT_TABLE_MAIN
;
2205 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2207 rule
.priority
= 32767;
2208 rule
.lookup
= RT_TABLE_DEFAULT
;
2209 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2212 rule
.flags
= IPRULE_INET6
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
2215 rule
.lookup
= RT_TABLE_LOCAL
;
2216 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2218 rule
.priority
= 32766;
2219 rule
.lookup
= RT_TABLE_MAIN
;
2220 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2225 bool system_resolve_iprule_action(const char *action
, unsigned int *id
)
2227 return system_rtn_aton(action
, id
);
2230 time_t system_get_rtime(void)
2235 if (syscall(__NR_clock_gettime
, CLOCK_MONOTONIC
, &ts
) == 0)
2238 if (gettimeofday(&tv
, NULL
) == 0)
2245 #define IP_DF 0x4000
2248 static int tunnel_ioctl(const char *name
, int cmd
, void *p
)
2252 memset(&ifr
, 0, sizeof(ifr
));
2253 strncpy(ifr
.ifr_name
, name
, sizeof(ifr
.ifr_name
));
2254 ifr
.ifr_ifru
.ifru_data
= p
;
2255 return ioctl(sock_ioctl
, cmd
, &ifr
);
2258 #ifdef IFLA_IPTUN_MAX
2259 #define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
2260 static int system_add_gre_tunnel(const char *name
, const char *kind
,
2261 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
2264 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
2265 struct blob_attr
*cur
;
2266 uint32_t ikey
= 0, okey
= 0, flags
= 0, flowinfo
= 0;
2267 uint16_t iflags
= 0, oflags
= 0;
2269 int ret
= 0, ttl
= 0;
2271 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2275 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2276 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2278 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2284 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
2285 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2292 nla_put_u32(nlm
, IFLA_GRE_LINK
, link
);
2294 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2295 ttl
= blobmsg_get_u32(cur
);
2297 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
2298 char *str
= blobmsg_get_string(cur
);
2299 if (strcmp(str
, "inherit")) {
2302 if (!system_tos_aton(str
, &uval
)) {
2308 flowinfo
|= htonl(uval
<< 20) & IP6_FLOWINFO_TCLASS
;
2313 flags
|= IP6_TNL_F_USE_ORIG_TCLASS
;
2319 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2320 struct blob_attr
*tb_data
[__GRE_DATA_ATTR_MAX
];
2322 blobmsg_parse(gre_data_attr_list
.params
, __GRE_DATA_ATTR_MAX
, tb_data
,
2323 blobmsg_data(cur
), blobmsg_len(cur
));
2325 if ((cur
= tb_data
[GRE_DATA_IKEY
])) {
2326 if ((ikey
= blobmsg_get_u32(cur
)))
2330 if ((cur
= tb_data
[GRE_DATA_OKEY
])) {
2331 if ((okey
= blobmsg_get_u32(cur
)))
2335 if ((cur
= tb_data
[GRE_DATA_ICSUM
])) {
2336 if (blobmsg_get_bool(cur
))
2340 if ((cur
= tb_data
[GRE_DATA_OCSUM
])) {
2341 if (blobmsg_get_bool(cur
))
2345 if ((cur
= tb_data
[GRE_DATA_ISEQNO
])) {
2346 if (blobmsg_get_bool(cur
))
2350 if ((cur
= tb
[GRE_DATA_OSEQNO
])) {
2351 if (blobmsg_get_bool(cur
))
2357 struct in6_addr in6buf
;
2358 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2359 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2363 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(in6buf
), &in6buf
);
2366 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2367 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2371 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(in6buf
), &in6buf
);
2373 nla_put_u8(nlm
, IFLA_GRE_ENCAP_LIMIT
, 4);
2376 nla_put_u32(nlm
, IFLA_GRE_FLOWINFO
, flowinfo
);
2379 nla_put_u32(nlm
, IFLA_GRE_FLAGS
, flags
);
2384 struct in_addr inbuf
;
2387 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2388 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2392 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(inbuf
), &inbuf
);
2395 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2396 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2400 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(inbuf
), &inbuf
);
2402 if (IN_MULTICAST(ntohl(inbuf
.s_addr
))) {
2404 okey
= inbuf
.s_addr
;
2409 ikey
= inbuf
.s_addr
;
2415 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
2416 set_df
= blobmsg_get_bool(cur
);
2419 /* ttl != 0 and nopmtudisc are incompatible */
2427 nla_put_u8(nlm
, IFLA_GRE_PMTUDISC
, set_df
? 1 : 0);
2429 nla_put_u8(nlm
, IFLA_GRE_TOS
, tos
);
2433 nla_put_u8(nlm
, IFLA_GRE_TTL
, ttl
);
2436 nla_put_u16(nlm
, IFLA_GRE_OFLAGS
, oflags
);
2439 nla_put_u16(nlm
, IFLA_GRE_IFLAGS
, iflags
);
2442 nla_put_u32(nlm
, IFLA_GRE_OKEY
, okey
);
2445 nla_put_u32(nlm
, IFLA_GRE_IKEY
, ikey
);
2447 nla_nest_end(nlm
, infodata
);
2448 nla_nest_end(nlm
, linkinfo
);
2450 return system_rtnl_call(nlm
);
2459 static int system_add_vti_tunnel(const char *name
, const char *kind
,
2460 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
2463 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
2464 struct blob_attr
*cur
;
2467 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2471 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2472 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2474 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2480 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
2481 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2488 nla_put_u32(nlm
, IFLA_VTI_LINK
, link
);
2491 struct in6_addr in6buf
;
2492 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2493 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2497 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(in6buf
), &in6buf
);
2500 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2501 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2505 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(in6buf
), &in6buf
);
2509 struct in_addr inbuf
;
2511 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2512 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2516 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(inbuf
), &inbuf
);
2519 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2520 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2524 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(inbuf
), &inbuf
);
2529 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2530 struct blob_attr
*tb_data
[__VTI_DATA_ATTR_MAX
];
2531 uint32_t ikey
= 0, okey
= 0;
2533 blobmsg_parse(vti_data_attr_list
.params
, __VTI_DATA_ATTR_MAX
, tb_data
,
2534 blobmsg_data(cur
), blobmsg_len(cur
));
2536 if ((cur
= tb_data
[VTI_DATA_IKEY
])) {
2537 if ((ikey
= blobmsg_get_u32(cur
)))
2538 nla_put_u32(nlm
, IFLA_VTI_IKEY
, htonl(ikey
));
2541 if ((cur
= tb_data
[VTI_DATA_OKEY
])) {
2542 if ((okey
= blobmsg_get_u32(cur
)))
2543 nla_put_u32(nlm
, IFLA_VTI_OKEY
, htonl(okey
));
2547 nla_nest_end(nlm
, infodata
);
2548 nla_nest_end(nlm
, linkinfo
);
2550 return system_rtnl_call(nlm
);
2558 #ifdef IFLA_VXLAN_MAX
2559 static int system_add_vxlan(const char *name
, const unsigned int link
, struct blob_attr
**tb
, bool v6
)
2561 struct blob_attr
*tb_data
[__VXLAN_DATA_ATTR_MAX
];
2563 struct nlattr
*linkinfo
, *data
;
2564 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
2565 struct blob_attr
*cur
;
2568 if ((cur
= tb
[TUNNEL_ATTR_DATA
]))
2569 blobmsg_parse(vxlan_data_attr_list
.params
, __VXLAN_DATA_ATTR_MAX
, tb_data
,
2570 blobmsg_data(cur
), blobmsg_len(cur
));
2574 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
2579 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
2581 nla_put_string(msg
, IFLA_IFNAME
, name
);
2583 if ((cur
= tb_data
[VXLAN_DATA_ATTR_MACADDR
])) {
2584 struct ether_addr
*ea
= ether_aton(blobmsg_get_string(cur
));
2590 nla_put(msg
, IFLA_ADDRESS
, ETH_ALEN
, ea
);
2593 if ((cur
= tb
[TUNNEL_ATTR_MTU
])) {
2594 uint32_t mtu
= blobmsg_get_u32(cur
);
2595 nla_put_u32(msg
, IFLA_MTU
, mtu
);
2598 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
))) {
2603 nla_put_string(msg
, IFLA_INFO_KIND
, "vxlan");
2605 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
))) {
2611 nla_put_u32(msg
, IFLA_VXLAN_LINK
, link
);
2613 if ((cur
= tb_data
[VXLAN_DATA_ATTR_ID
])) {
2614 uint32_t id
= blobmsg_get_u32(cur
);
2615 if (id
>= (1u << 24) - 1) {
2620 nla_put_u32(msg
, IFLA_VXLAN_ID
, id
);
2624 struct in6_addr in6buf
;
2625 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2626 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2630 nla_put(msg
, IFLA_VXLAN_LOCAL6
, sizeof(in6buf
), &in6buf
);
2633 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2634 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2638 nla_put(msg
, IFLA_VXLAN_GROUP6
, sizeof(in6buf
), &in6buf
);
2641 struct in_addr inbuf
;
2643 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2644 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2648 nla_put(msg
, IFLA_VXLAN_LOCAL
, sizeof(inbuf
), &inbuf
);
2651 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2652 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2656 nla_put(msg
, IFLA_VXLAN_GROUP
, sizeof(inbuf
), &inbuf
);
2660 uint32_t port
= 4789;
2661 if ((cur
= tb_data
[VXLAN_DATA_ATTR_PORT
])) {
2662 port
= blobmsg_get_u32(cur
);
2663 if (port
< 1 || port
> 65535) {
2668 nla_put_u16(msg
, IFLA_VXLAN_PORT
, htons(port
));
2670 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
2671 char *str
= blobmsg_get_string(cur
);
2674 if (strcmp(str
, "inherit")) {
2675 if (!system_tos_aton(str
, &tos
))
2679 nla_put_u8(msg
, IFLA_VXLAN_TOS
, tos
);
2682 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
2683 uint32_t ttl
= blobmsg_get_u32(cur
);
2684 if (ttl
< 1 || ttl
> 255) {
2689 nla_put_u8(msg
, IFLA_VXLAN_TTL
, ttl
);
2692 nla_nest_end(msg
, data
);
2693 nla_nest_end(msg
, linkinfo
);
2695 ret
= system_rtnl_call(msg
);
2697 D(SYSTEM
, "Error adding vxlan '%s': %d\n", name
, ret
);
2707 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
, const unsigned int link
, struct blob_attr
**tb
)
2709 struct blob_attr
*cur
;
2711 struct ip_tunnel_parm p
= {
2720 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
]) &&
2721 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.saddr
) < 1)
2724 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
]) &&
2725 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.daddr
) < 1)
2728 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
2729 set_df
= blobmsg_get_bool(cur
);
2731 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2732 p
.iph
.ttl
= blobmsg_get_u32(cur
);
2734 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
2735 char *str
= blobmsg_get_string(cur
);
2736 if (strcmp(str
, "inherit")) {
2739 if (!system_tos_aton(str
, &uval
))
2747 p
.iph
.frag_off
= set_df
? htons(IP_DF
) : 0;
2748 /* ttl !=0 and nopmtudisc are incompatible */
2749 if (p
.iph
.ttl
&& p
.iph
.frag_off
== 0)
2752 strncpy(p
.name
, name
, sizeof(p
.name
));
2754 switch (p
.iph
.protocol
) {
2756 return tunnel_ioctl("tunl0", SIOCADDTUNNEL
, &p
);
2758 return tunnel_ioctl("sit0", SIOCADDTUNNEL
, &p
);
2765 static int __system_del_ip_tunnel(const char *name
, struct blob_attr
**tb
)
2767 struct blob_attr
*cur
;
2770 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
2772 str
= blobmsg_data(cur
);
2774 if (!strcmp(str
, "greip") || !strcmp(str
, "gretapip") ||
2775 !strcmp(str
, "greip6") || !strcmp(str
, "gretapip6") ||
2776 !strcmp(str
, "vtiip") || !strcmp(str
, "vtiip6") ||
2777 !strcmp(str
, "vxlan") || !strcmp(str
, "vxlan6"))
2778 return system_link_del(name
);
2780 return tunnel_ioctl(name
, SIOCDELTUNNEL
, NULL
);
2783 int system_del_ip_tunnel(const char *name
, struct blob_attr
*attr
)
2785 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
2787 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
2788 blob_data(attr
), blob_len(attr
));
2790 return __system_del_ip_tunnel(name
, tb
);
2793 int system_update_ipv6_mtu(struct device
*dev
, int mtu
)
2799 snprintf(buf
, sizeof(buf
), "/proc/sys/net/ipv6/conf/%s/mtu",
2802 fd
= open(buf
, O_RDWR
);
2807 ssize_t len
= read(fd
, buf
, sizeof(buf
) - 1);
2814 if (write(fd
, buf
, snprintf(buf
, sizeof(buf
), "%i", mtu
)) > 0)
2823 int system_add_ip_tunnel(const char *name
, struct blob_attr
*attr
)
2825 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
2826 struct blob_attr
*cur
;
2829 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
2830 blob_data(attr
), blob_len(attr
));
2832 __system_del_ip_tunnel(name
, tb
);
2834 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
2836 str
= blobmsg_data(cur
);
2838 unsigned int ttl
= 0;
2839 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
2840 ttl
= blobmsg_get_u32(cur
);
2845 unsigned int link
= 0;
2846 if ((cur
= tb
[TUNNEL_ATTR_LINK
])) {
2847 struct interface
*iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
2851 if (iface
->l3_dev
.dev
)
2852 link
= iface
->l3_dev
.dev
->ifindex
;
2855 if (!strcmp(str
, "sit")) {
2856 if (system_add_proto_tunnel(name
, IPPROTO_IPV6
, link
, tb
) < 0)
2860 if ((cur
= tb
[TUNNEL_ATTR_6RD_PREFIX
])) {
2862 struct ip_tunnel_6rd p6
;
2864 memset(&p6
, 0, sizeof(p6
));
2866 if (!parse_ip_and_netmask(AF_INET6
, blobmsg_data(cur
),
2867 &p6
.prefix
, &mask
) || mask
> 128)
2869 p6
.prefixlen
= mask
;
2871 if ((cur
= tb
[TUNNEL_ATTR_6RD_RELAY_PREFIX
])) {
2872 if (!parse_ip_and_netmask(AF_INET
, blobmsg_data(cur
),
2873 &p6
.relay_prefix
, &mask
) || mask
> 32)
2875 p6
.relay_prefixlen
= mask
;
2878 if (tunnel_ioctl(name
, SIOCADD6RD
, &p6
) < 0) {
2879 __system_del_ip_tunnel(name
, tb
);
2884 #ifdef IFLA_IPTUN_MAX
2885 } else if (!strcmp(str
, "ipip6")) {
2886 struct nl_msg
*nlm
= nlmsg_alloc_simple(RTM_NEWLINK
,
2887 NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2888 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
};
2894 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2895 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2898 nla_put_u32(nlm
, IFLA_LINK
, link
);
2900 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2905 nla_put_string(nlm
, IFLA_INFO_KIND
, "ip6tnl");
2906 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2913 nla_put_u32(nlm
, IFLA_IPTUN_LINK
, link
);
2915 nla_put_u8(nlm
, IFLA_IPTUN_PROTO
, IPPROTO_IPIP
);
2916 nla_put_u8(nlm
, IFLA_IPTUN_TTL
, (ttl
) ? ttl
: 64);
2917 nla_put_u8(nlm
, IFLA_IPTUN_ENCAP_LIMIT
, 4);
2919 struct in6_addr in6buf
;
2920 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2921 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2925 nla_put(nlm
, IFLA_IPTUN_LOCAL
, sizeof(in6buf
), &in6buf
);
2928 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2929 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2933 nla_put(nlm
, IFLA_IPTUN_REMOTE
, sizeof(in6buf
), &in6buf
);
2936 #ifdef IFLA_IPTUN_FMR_MAX
2937 if ((cur
= tb
[TUNNEL_ATTR_FMRS
])) {
2938 struct nlattr
*fmrs
= nla_nest_start(nlm
, IFLA_IPTUN_FMRS
);
2940 struct blob_attr
*fmr
;
2941 unsigned rem
, fmrcnt
= 0;
2942 blobmsg_for_each_attr(fmr
, cur
, rem
) {
2943 if (blobmsg_type(fmr
) != BLOBMSG_TYPE_STRING
)
2946 unsigned ip4len
, ip6len
, ealen
, offset
= 6;
2950 if (sscanf(blobmsg_get_string(fmr
), "%47[^/]/%u,%15[^/]/%u,%u,%u",
2951 ip6buf
, &ip6len
, ip4buf
, &ip4len
, &ealen
, &offset
) < 5) {
2956 struct in6_addr ip6prefix
;
2957 struct in_addr ip4prefix
;
2958 if (inet_pton(AF_INET6
, ip6buf
, &ip6prefix
) != 1 ||
2959 inet_pton(AF_INET
, ip4buf
, &ip4prefix
) != 1) {
2964 struct nlattr
*rule
= nla_nest_start(nlm
, ++fmrcnt
);
2966 nla_put(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX
, sizeof(ip6prefix
), &ip6prefix
);
2967 nla_put(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX
, sizeof(ip4prefix
), &ip4prefix
);
2968 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX_LEN
, ip6len
);
2969 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX_LEN
, ip4len
);
2970 nla_put_u8(nlm
, IFLA_IPTUN_FMR_EA_LEN
, ealen
);
2971 nla_put_u8(nlm
, IFLA_IPTUN_FMR_OFFSET
, offset
);
2973 nla_nest_end(nlm
, rule
);
2976 nla_nest_end(nlm
, fmrs
);
2980 nla_nest_end(nlm
, infodata
);
2981 nla_nest_end(nlm
, linkinfo
);
2983 return system_rtnl_call(nlm
);
2987 } else if (!strcmp(str
, "greip")) {
2988 return system_add_gre_tunnel(name
, "gre", link
, tb
, false);
2989 } else if (!strcmp(str
, "gretapip")) {
2990 return system_add_gre_tunnel(name
, "gretap", link
, tb
, false);
2991 } else if (!strcmp(str
, "greip6")) {
2992 return system_add_gre_tunnel(name
, "ip6gre", link
, tb
, true);
2993 } else if (!strcmp(str
, "gretapip6")) {
2994 return system_add_gre_tunnel(name
, "ip6gretap", link
, tb
, true);
2996 } else if (!strcmp(str
, "vtiip")) {
2997 return system_add_vti_tunnel(name
, "vti", link
, tb
, false);
2998 } else if (!strcmp(str
, "vtiip6")) {
2999 return system_add_vti_tunnel(name
, "vti6", link
, tb
, true);
3001 #ifdef IFLA_VXLAN_MAX
3002 } else if(!strcmp(str
, "vxlan")) {
3003 return system_add_vxlan(name
, link
, tb
, false);
3004 } else if(!strcmp(str
, "vxlan6")) {
3005 return system_add_vxlan(name
, link
, tb
, true);
3008 } else if (!strcmp(str
, "ipip")) {
3009 return system_add_proto_tunnel(name
, IPPROTO_IPIP
, link
, tb
);