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
);
84 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
,
85 const unsigned int link
, struct blob_attr
**tb
);
86 static int __system_del_ip_tunnel(const char *name
, struct blob_attr
**tb
);
88 static char dev_buf
[256];
91 handler_nl_event(struct uloop_fd
*u
, unsigned int events
)
93 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
95 socklen_t errlen
= sizeof(err
);
98 nl_recvmsgs_default(ev
->sock
);
102 if (getsockopt(u
->fd
, SOL_SOCKET
, SO_ERROR
, (void *)&err
, &errlen
))
107 // Increase rx buffer size on netlink socket
109 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
112 // Request full dump since some info got dropped
113 struct rtgenmsg msg
= { .rtgen_family
= AF_UNSPEC
};
114 nl_send_simple(ev
->sock
, RTM_GETLINK
, NLM_F_DUMP
, &msg
, sizeof(msg
));
124 uloop_fd_delete(&ev
->uloop
);
128 static struct nl_sock
*
129 create_socket(int protocol
, int groups
)
131 struct nl_sock
*sock
;
133 sock
= nl_socket_alloc();
138 nl_join_groups(sock
, groups
);
140 if (nl_connect(sock
, protocol
))
147 create_raw_event_socket(struct event_socket
*ev
, int protocol
, int groups
,
148 uloop_fd_handler cb
, int flags
)
150 ev
->sock
= create_socket(protocol
, groups
);
154 ev
->uloop
.fd
= nl_socket_get_fd(ev
->sock
);
156 if (uloop_fd_add(&ev
->uloop
, ULOOP_READ
|flags
))
163 create_event_socket(struct event_socket
*ev
, int protocol
,
164 int (*cb
)(struct nl_msg
*msg
, void *arg
))
166 if (!create_raw_event_socket(ev
, protocol
, 0, handler_nl_event
, ULOOP_ERROR_CB
))
169 // Install the valid custom callback handler
170 nl_socket_modify_cb(ev
->sock
, NL_CB_VALID
, NL_CB_CUSTOM
, cb
, NULL
);
172 // Disable sequence number checking on event sockets
173 nl_socket_disable_seq_check(ev
->sock
);
175 // Increase rx buffer size to 65K on event sockets
177 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
184 system_rtn_aton(const char *src
, unsigned int *dst
)
189 if (!strcmp(src
, "local"))
191 else if (!strcmp(src
, "nat"))
193 else if (!strcmp(src
, "broadcast"))
195 else if (!strcmp(src
, "anycast"))
197 else if (!strcmp(src
, "multicast"))
199 else if (!strcmp(src
, "prohibit"))
201 else if (!strcmp(src
, "unreachable"))
203 else if (!strcmp(src
, "blackhole"))
205 else if (!strcmp(src
, "xresolve"))
207 else if (!strcmp(src
, "unicast"))
209 else if (!strcmp(src
, "throw"))
211 else if (!strcmp(src
, "failed_policy"))
212 n
= RTN_FAILED_POLICY
;
214 n
= strtoul(src
, &e
, 0);
215 if (!e
|| *e
|| e
== src
|| n
> 255)
224 system_tos_aton(const char *src
, unsigned *dst
)
228 *dst
= strtoul(src
, &e
, 16);
229 if (e
== src
|| *e
|| *dst
> 255)
235 int system_init(void)
237 static struct event_socket rtnl_event
;
238 static struct event_socket hotplug_event
;
240 sock_ioctl
= socket(AF_LOCAL
, SOCK_DGRAM
, 0);
241 system_fd_set_cloexec(sock_ioctl
);
243 // Prepare socket for routing / address control
244 sock_rtnl
= create_socket(NETLINK_ROUTE
, 0);
248 if (!create_event_socket(&rtnl_event
, NETLINK_ROUTE
, cb_rtnl_event
))
251 if (!create_raw_event_socket(&hotplug_event
, NETLINK_KOBJECT_UEVENT
, 1,
252 handle_hotplug_event
, 0))
255 // Receive network link events form kernel
256 nl_socket_add_membership(rtnl_event
.sock
, RTNLGRP_LINK
);
261 static void system_set_sysctl(const char *path
, const char *val
)
265 fd
= open(path
, O_WRONLY
);
269 if (write(fd
, val
, strlen(val
))) {}
273 static void system_set_dev_sysctl(const char *path
, const char *device
, const char *val
)
275 snprintf(dev_buf
, sizeof(dev_buf
), path
, device
);
276 system_set_sysctl(dev_buf
, val
);
279 static void system_set_disable_ipv6(struct device
*dev
, const char *val
)
281 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6", dev
->ifname
, val
);
284 static void system_set_rpfilter(struct device
*dev
, const char *val
)
286 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/rp_filter", dev
->ifname
, val
);
289 static void system_set_acceptlocal(struct device
*dev
, const char *val
)
291 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/accept_local", dev
->ifname
, val
);
294 static void system_set_igmpversion(struct device
*dev
, const char *val
)
296 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/force_igmp_version", dev
->ifname
, val
);
299 static void system_set_mldversion(struct device
*dev
, const char *val
)
301 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/force_mld_version", dev
->ifname
, val
);
304 static void system_set_neigh4reachabletime(struct device
*dev
, const char *val
)
306 system_set_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/base_reachable_time_ms", dev
->ifname
, val
);
309 static void system_set_neigh6reachabletime(struct device
*dev
, const char *val
)
311 system_set_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/base_reachable_time_ms", dev
->ifname
, val
);
314 static void system_set_neigh4gcstaletime(struct device
*dev
, const char *val
)
316 system_set_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/gc_stale_time", dev
->ifname
, val
);
319 static void system_set_neigh6gcstaletime(struct device
*dev
, const char *val
)
321 system_set_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/gc_stale_time", dev
->ifname
, val
);
324 static void system_set_neigh4locktime(struct device
*dev
, const char *val
)
326 system_set_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/locktime", dev
->ifname
, val
);
329 static void system_set_dadtransmits(struct device
*dev
, const char *val
)
331 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/dad_transmits", dev
->ifname
, val
);
334 static void system_bridge_set_multicast_to_unicast(struct device
*dev
, const char *val
)
336 system_set_dev_sysctl("/sys/class/net/%s/brport/multicast_to_unicast", dev
->ifname
, val
);
339 static void system_bridge_set_multicast_fast_leave(struct device
*dev
, const char *val
)
341 system_set_dev_sysctl("/sys/class/net/%s/brport/multicast_fast_leave", dev
->ifname
, val
);
344 static void system_bridge_set_hairpin_mode(struct device
*dev
, const char *val
)
346 system_set_dev_sysctl("/sys/class/net/%s/brport/hairpin_mode", dev
->ifname
, val
);
349 static void system_bridge_set_multicast_router(struct device
*dev
, const char *val
, bool bridge
)
351 system_set_dev_sysctl(bridge
? "/sys/class/net/%s/bridge/multicast_router" :
352 "/sys/class/net/%s/brport/multicast_router",
356 static void system_bridge_set_robustness(struct device
*dev
, const char *val
)
358 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_startup_query_count",
360 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_last_member_count",
364 static void system_bridge_set_query_interval(struct device
*dev
, const char *val
)
366 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_query_interval",
370 static void system_bridge_set_query_response_interval(struct device
*dev
, const char *val
)
372 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_query_response_interval",
376 static void system_bridge_set_last_member_interval(struct device
*dev
, const char *val
)
378 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_last_member_interval",
382 static void system_bridge_set_membership_interval(struct device
*dev
, const char *val
)
384 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_membership_interval",
388 static void system_bridge_set_other_querier_timeout(struct device
*dev
, const char *val
)
390 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier_interval",
394 static void system_bridge_set_startup_query_interval(struct device
*dev
, const char *val
)
396 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_startup_query_interval",
400 static void system_bridge_set_learning(struct device
*dev
, const char *val
)
402 system_set_dev_sysctl("/sys/class/net/%s/brport/learning", dev
->ifname
, val
);
405 static void system_bridge_set_unicast_flood(struct device
*dev
, const char *val
)
407 system_set_dev_sysctl("/sys/class/net/%s/brport/unicast_flood", dev
->ifname
, val
);
410 static void system_set_sendredirects(struct device
*dev
, const char *val
)
412 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/send_redirects", dev
->ifname
, val
);
415 static int system_get_sysctl(const char *path
, char *buf
, const size_t buf_sz
)
417 int fd
= -1, ret
= -1;
419 fd
= open(path
, O_RDONLY
);
423 ssize_t len
= read(fd
, buf
, buf_sz
- 1);
437 system_get_dev_sysctl(const char *path
, const char *device
, char *buf
, const size_t buf_sz
)
439 snprintf(dev_buf
, sizeof(dev_buf
), path
, device
);
440 return system_get_sysctl(dev_buf
, buf
, buf_sz
);
443 static int system_get_disable_ipv6(struct device
*dev
, char *buf
, const size_t buf_sz
)
445 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6",
446 dev
->ifname
, buf
, buf_sz
);
449 static int system_get_rpfilter(struct device
*dev
, char *buf
, const size_t buf_sz
)
451 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/rp_filter",
452 dev
->ifname
, buf
, buf_sz
);
455 static int system_get_acceptlocal(struct device
*dev
, char *buf
, const size_t buf_sz
)
457 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/accept_local",
458 dev
->ifname
, buf
, buf_sz
);
461 static int system_get_igmpversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
463 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/force_igmp_version",
464 dev
->ifname
, buf
, buf_sz
);
467 static int system_get_mldversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
469 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/force_mld_version",
470 dev
->ifname
, buf
, buf_sz
);
473 static int system_get_neigh4reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
475 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/base_reachable_time_ms",
476 dev
->ifname
, buf
, buf_sz
);
479 static int system_get_neigh6reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
481 return system_get_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/base_reachable_time_ms",
482 dev
->ifname
, buf
, buf_sz
);
485 static int system_get_neigh4gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
487 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/gc_stale_time",
488 dev
->ifname
, buf
, buf_sz
);
491 static int system_get_neigh6gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
493 return system_get_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/gc_stale_time",
494 dev
->ifname
, buf
, buf_sz
);
497 static int system_get_neigh4locktime(struct device
*dev
, char *buf
, const size_t buf_sz
)
499 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/locktime",
500 dev
->ifname
, buf
, buf_sz
);
503 static int system_get_dadtransmits(struct device
*dev
, char *buf
, const size_t buf_sz
)
505 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/dad_transmits",
506 dev
->ifname
, buf
, buf_sz
);
509 static int system_get_sendredirects(struct device
*dev
, char *buf
, const size_t buf_sz
)
511 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/send_redirects",
512 dev
->ifname
, buf
, buf_sz
);
515 // Evaluate netlink messages
516 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
)
518 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
519 struct nlattr
*nla
[__IFLA_MAX
];
523 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
526 nlmsg_parse(nh
, sizeof(struct ifinfomsg
), nla
, __IFLA_MAX
- 1, NULL
);
527 if (!nla
[IFLA_IFNAME
])
530 struct device
*dev
= device_find(nla_data(nla
[IFLA_IFNAME
]));
534 if (!system_get_dev_sysctl("/sys/class/net/%s/carrier", dev
->ifname
, buf
, sizeof(buf
)))
535 link_state
= strtoul(buf
, NULL
, 0);
537 device_set_link(dev
, link_state
? true : false);
544 handle_hotplug_msg(char *data
, int size
)
546 const char *subsystem
= NULL
, *interface
= NULL
, *interface_old
= NULL
;
547 char *cur
, *end
, *sep
;
550 bool add
, move
= false;
552 if (!strncmp(data
, "add@", 4))
554 else if (!strncmp(data
, "remove@", 7))
556 else if (!strncmp(data
, "move@", 5)) {
563 skip
= strlen(data
) + 1;
566 for (cur
= data
+ skip
; cur
< end
; cur
+= skip
) {
567 skip
= strlen(cur
) + 1;
569 sep
= strchr(cur
, '=');
574 if (!strcmp(cur
, "INTERFACE"))
576 else if (!strcmp(cur
, "SUBSYSTEM")) {
578 if (strcmp(subsystem
, "net") != 0)
580 } else if (!strcmp(cur
, "DEVPATH_OLD")) {
581 interface_old
= strrchr(sep
+ 1, '/');
587 if (subsystem
&& interface
) {
588 if (move
&& interface_old
)
597 dev
= device_find(interface_old
);
601 if (dev
->type
!= &simple_device_type
)
604 device_set_present(dev
, false);
607 dev
= device_find(interface
);
611 if (dev
->type
!= &simple_device_type
)
614 if (add
&& system_if_force_external(dev
->ifname
))
617 device_set_present(dev
, add
);
621 handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
)
623 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
624 struct sockaddr_nl nla
;
625 unsigned char *buf
= NULL
;
628 while ((size
= nl_recv(ev
->sock
, &nla
, &buf
, NULL
)) > 0) {
630 handle_hotplug_msg((char *) buf
, size
);
636 static int system_rtnl_call(struct nl_msg
*msg
)
640 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
646 return nl_wait_for_ack(sock_rtnl
);
649 int system_bridge_delbr(struct device
*bridge
)
651 return ioctl(sock_ioctl
, SIOCBRDELBR
, bridge
->ifname
);
654 static int system_bridge_if(const char *bridge
, struct device
*dev
, int cmd
, void *data
)
658 memset(&ifr
, 0, sizeof(ifr
));
660 ifr
.ifr_ifindex
= dev
->ifindex
;
663 strncpy(ifr
.ifr_name
, bridge
, sizeof(ifr
.ifr_name
));
664 return ioctl(sock_ioctl
, cmd
, &ifr
);
667 static bool system_is_bridge(const char *name
, char *buf
, int buflen
)
671 snprintf(buf
, buflen
, "/sys/devices/virtual/net/%s/bridge", name
);
672 if (stat(buf
, &st
) < 0)
678 static char *system_get_bridge(const char *name
, char *buf
, int buflen
)
684 snprintf(buf
, buflen
, "/sys/devices/virtual/net/*/brif/%s/bridge", name
);
685 if (glob(buf
, GLOB_NOSORT
, NULL
, &gl
) < 0)
689 len
= readlink(gl
.gl_pathv
[0], buf
, buflen
);
697 path
= strrchr(buf
, '/');
705 system_bridge_set_wireless(struct device
*bridge
, struct device
*dev
)
707 bool mcast_to_ucast
= dev
->wireless_ap
;
710 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
&&
711 !bridge
->settings
.multicast_to_unicast
)
712 mcast_to_ucast
= false;
714 if (!mcast_to_ucast
|| dev
->wireless_isolate
)
717 system_bridge_set_multicast_to_unicast(dev
, mcast_to_ucast
? "1" : "0");
718 system_bridge_set_hairpin_mode(dev
, hairpin
? "1" : "0");
721 int system_bridge_addif(struct device
*bridge
, struct device
*dev
)
727 oldbr
= system_get_bridge(dev
->ifname
, dev_buf
, sizeof(dev_buf
));
728 if (!oldbr
|| strcmp(oldbr
, bridge
->ifname
) != 0)
729 ret
= system_bridge_if(bridge
->ifname
, dev
, SIOCBRADDIF
, NULL
);
732 system_bridge_set_wireless(bridge
, dev
);
734 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
735 snprintf(buf
, sizeof(buf
), "%u", dev
->settings
.multicast_router
);
736 system_bridge_set_multicast_router(dev
, buf
, false);
739 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
&&
740 dev
->settings
.multicast_fast_leave
)
741 system_bridge_set_multicast_fast_leave(dev
, "1");
743 if (dev
->settings
.flags
& DEV_OPT_LEARNING
&&
744 !dev
->settings
.learning
)
745 system_bridge_set_learning(dev
, "0");
747 if (dev
->settings
.flags
& DEV_OPT_UNICAST_FLOOD
&&
748 !dev
->settings
.unicast_flood
)
749 system_bridge_set_unicast_flood(dev
, "0");
754 int system_bridge_delif(struct device
*bridge
, struct device
*dev
)
756 return system_bridge_if(bridge
->ifname
, dev
, SIOCBRDELIF
, NULL
);
759 int system_if_resolve(struct device
*dev
)
762 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
763 if (!ioctl(sock_ioctl
, SIOCGIFINDEX
, &ifr
))
764 return ifr
.ifr_ifindex
;
769 static int system_if_flags(const char *ifname
, unsigned add
, unsigned rem
)
773 memset(&ifr
, 0, sizeof(ifr
));
774 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
));
775 ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
);
776 ifr
.ifr_flags
|= add
;
777 ifr
.ifr_flags
&= ~rem
;
778 return ioctl(sock_ioctl
, SIOCSIFFLAGS
, &ifr
);
790 static bool check_ifaddr(struct nlmsghdr
*hdr
, int ifindex
)
792 struct ifaddrmsg
*ifa
= NLMSG_DATA(hdr
);
794 return ifa
->ifa_index
== ifindex
;
797 static bool check_route(struct nlmsghdr
*hdr
, int ifindex
)
799 struct rtmsg
*r
= NLMSG_DATA(hdr
);
800 struct nlattr
*tb
[__RTA_MAX
];
802 if (r
->rtm_protocol
== RTPROT_KERNEL
&&
803 r
->rtm_family
== AF_INET6
)
806 nlmsg_parse(hdr
, sizeof(struct rtmsg
), tb
, __RTA_MAX
- 1, NULL
);
810 return *(int *)RTA_DATA(tb
[RTA_OIF
]) == ifindex
;
813 static bool check_rule(struct nlmsghdr
*hdr
, int ifindex
)
818 static int cb_clear_event(struct nl_msg
*msg
, void *arg
)
820 struct clear_data
*clr
= arg
;
821 struct nlmsghdr
*hdr
= nlmsg_hdr(msg
);
822 bool (*cb
)(struct nlmsghdr
*, int ifindex
);
828 if (hdr
->nlmsg_type
!= RTM_NEWADDR
)
835 if (hdr
->nlmsg_type
!= RTM_NEWROUTE
)
842 if (hdr
->nlmsg_type
!= RTM_NEWRULE
)
851 if (!cb(hdr
, clr
->dev
? clr
->dev
->ifindex
: 0))
854 if (type
== RTM_DELRULE
)
855 D(SYSTEM
, "Remove a rule\n");
857 D(SYSTEM
, "Remove %s from device %s\n",
858 type
== RTM_DELADDR
? "an address" : "a route",
860 memcpy(nlmsg_hdr(clr
->msg
), hdr
, hdr
->nlmsg_len
);
861 hdr
= nlmsg_hdr(clr
->msg
);
862 hdr
->nlmsg_type
= type
;
863 hdr
->nlmsg_flags
= NLM_F_REQUEST
;
865 nl_socket_disable_auto_ack(sock_rtnl
);
866 nl_send_auto_complete(sock_rtnl
, clr
->msg
);
867 nl_socket_enable_auto_ack(sock_rtnl
);
873 cb_finish_event(struct nl_msg
*msg
, void *arg
)
881 error_handler(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
884 *pending
= err
->error
;
889 system_if_clear_entries(struct device
*dev
, int type
, int af
)
891 struct clear_data clr
;
892 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
895 .rtm_flags
= RTM_F_CLONED
,
897 int flags
= NLM_F_DUMP
;
906 clr
.size
= sizeof(struct rtgenmsg
);
909 clr
.size
= sizeof(struct rtmsg
);
918 clr
.msg
= nlmsg_alloc_simple(type
, flags
);
922 nlmsg_append(clr
.msg
, &rtm
, clr
.size
, 0);
923 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_clear_event
, &clr
);
924 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, cb_finish_event
, &pending
);
925 nl_cb_err(cb
, NL_CB_CUSTOM
, error_handler
, &pending
);
927 nl_send_auto_complete(sock_rtnl
, clr
.msg
);
929 nl_recvmsgs(sock_rtnl
, cb
);
937 * Clear bridge (membership) state and bring down device
939 void system_if_clear_state(struct device
*dev
)
941 static char buf
[256];
944 device_set_ifindex(dev
, system_if_resolve(dev
));
945 if (dev
->external
|| !dev
->ifindex
)
948 system_if_flags(dev
->ifname
, 0, IFF_UP
);
950 if (system_is_bridge(dev
->ifname
, buf
, sizeof(buf
))) {
951 D(SYSTEM
, "Delete existing bridge named '%s'\n", dev
->ifname
);
952 system_bridge_delbr(dev
);
956 bridge
= system_get_bridge(dev
->ifname
, buf
, sizeof(buf
));
958 D(SYSTEM
, "Remove device '%s' from bridge '%s'\n", dev
->ifname
, bridge
);
959 system_bridge_if(bridge
, dev
, SIOCBRDELIF
, NULL
);
962 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET
);
963 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET
);
964 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET6
);
965 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET6
);
966 system_set_disable_ipv6(dev
, "0");
969 static inline unsigned long
970 sec_to_jiffies(int val
)
972 return (unsigned long) val
* 100;
975 static void system_bridge_conf_multicast_deps(struct device
*bridge
,
976 struct bridge_config
*cfg
,
982 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
||
983 cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
||
984 cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
985 val
= cfg
->robustness
* cfg
->query_interval
+
986 cfg
->query_response_interval
;
988 snprintf(buf
, buf_len
, "%i", val
);
989 system_bridge_set_membership_interval(bridge
, buf
);
991 val
= cfg
->robustness
* cfg
->query_interval
+
992 cfg
->query_response_interval
/ 2;
994 snprintf(buf
, buf_len
, "%i", val
);
995 system_bridge_set_other_querier_timeout(bridge
, buf
);
998 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
999 val
= cfg
->query_interval
/ 4;
1001 snprintf(buf
, buf_len
, "%i", val
);
1002 system_bridge_set_startup_query_interval(bridge
, buf
);
1006 static void system_bridge_conf_multicast(struct device
*bridge
,
1007 struct bridge_config
*cfg
,
1011 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_snooping",
1012 bridge
->ifname
, cfg
->igmp_snoop
? "1" : "0");
1014 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier",
1015 bridge
->ifname
, cfg
->multicast_querier
? "1" : "0");
1017 snprintf(buf
, buf_len
, "%i", cfg
->hash_max
);
1018 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/hash_max",
1019 bridge
->ifname
, buf
);
1021 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
1022 snprintf(buf
, buf_len
, "%u", bridge
->settings
.multicast_router
);
1023 system_bridge_set_multicast_router(bridge
, buf
, true);
1026 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
) {
1027 snprintf(buf
, buf_len
, "%i", cfg
->robustness
);
1028 system_bridge_set_robustness(bridge
, buf
);
1031 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1032 snprintf(buf
, buf_len
, "%i", cfg
->query_interval
);
1033 system_bridge_set_query_interval(bridge
, buf
);
1036 if (cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
1037 snprintf(buf
, buf_len
, "%i", cfg
->query_response_interval
);
1038 system_bridge_set_query_response_interval(bridge
, buf
);
1041 if (cfg
->flags
& BRIDGE_OPT_LAST_MEMBER_INTERVAL
) {
1042 snprintf(buf
, buf_len
, "%i", cfg
->last_member_interval
);
1043 system_bridge_set_last_member_interval(bridge
, buf
);
1046 system_bridge_conf_multicast_deps(bridge
, cfg
, buf
, buf_len
);
1049 int system_bridge_addbr(struct device
*bridge
, struct bridge_config
*cfg
)
1052 unsigned long args
[4] = {};
1054 if (ioctl(sock_ioctl
, SIOCBRADDBR
, bridge
->ifname
) < 0)
1057 args
[0] = BRCTL_SET_BRIDGE_STP_STATE
;
1058 args
[1] = !!cfg
->stp
;
1059 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1061 args
[0] = BRCTL_SET_BRIDGE_FORWARD_DELAY
;
1062 args
[1] = sec_to_jiffies(cfg
->forward_delay
);
1063 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1065 system_bridge_conf_multicast(bridge
, cfg
, buf
, sizeof(buf
));
1067 args
[0] = BRCTL_SET_BRIDGE_PRIORITY
;
1068 args
[1] = cfg
->priority
;
1069 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1071 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
) {
1072 args
[0] = BRCTL_SET_AGEING_TIME
;
1073 args
[1] = sec_to_jiffies(cfg
->ageing_time
);
1074 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1077 if (cfg
->flags
& BRIDGE_OPT_HELLO_TIME
) {
1078 args
[0] = BRCTL_SET_BRIDGE_HELLO_TIME
;
1079 args
[1] = sec_to_jiffies(cfg
->hello_time
);
1080 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1083 if (cfg
->flags
& BRIDGE_OPT_MAX_AGE
) {
1084 args
[0] = BRCTL_SET_BRIDGE_MAX_AGE
;
1085 args
[1] = sec_to_jiffies(cfg
->max_age
);
1086 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1092 int system_macvlan_add(struct device
*macvlan
, struct device
*dev
, struct macvlan_config
*cfg
)
1095 struct nlattr
*linkinfo
, *data
;
1096 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
1098 static const struct {
1100 enum macvlan_mode val
;
1102 { "private", MACVLAN_MODE_PRIVATE
},
1103 { "vepa", MACVLAN_MODE_VEPA
},
1104 { "bridge", MACVLAN_MODE_BRIDGE
},
1105 { "passthru", MACVLAN_MODE_PASSTHRU
},
1108 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1113 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1115 if (cfg
->flags
& MACVLAN_OPT_MACADDR
)
1116 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1117 nla_put_string(msg
, IFLA_IFNAME
, macvlan
->ifname
);
1118 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1120 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1121 goto nla_put_failure
;
1123 nla_put_string(msg
, IFLA_INFO_KIND
, "macvlan");
1125 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1126 goto nla_put_failure
;
1129 for (i
= 0; i
< ARRAY_SIZE(modes
); i
++) {
1130 if (strcmp(cfg
->mode
, modes
[i
].name
) != 0)
1133 nla_put_u32(msg
, IFLA_MACVLAN_MODE
, modes
[i
].val
);
1138 nla_nest_end(msg
, data
);
1139 nla_nest_end(msg
, linkinfo
);
1141 rv
= system_rtnl_call(msg
);
1143 D(SYSTEM
, "Error adding macvlan '%s' over '%s': %d\n", macvlan
->ifname
, dev
->ifname
, rv
);
1152 static int system_link_del(const char *ifname
)
1155 struct ifinfomsg iim
= {
1156 .ifi_family
= AF_UNSPEC
,
1160 msg
= nlmsg_alloc_simple(RTM_DELLINK
, NLM_F_REQUEST
);
1165 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1166 nla_put_string(msg
, IFLA_IFNAME
, ifname
);
1167 return system_rtnl_call(msg
);
1170 int system_macvlan_del(struct device
*macvlan
)
1172 return system_link_del(macvlan
->ifname
);
1175 int system_veth_add(struct device
*veth
, struct veth_config
*cfg
)
1178 struct ifinfomsg empty_iim
= {};
1179 struct nlattr
*linkinfo
, *data
, *veth_info
;
1182 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1187 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1189 if (cfg
->flags
& VETH_OPT_MACADDR
)
1190 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1191 nla_put_string(msg
, IFLA_IFNAME
, veth
->ifname
);
1193 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1194 goto nla_put_failure
;
1196 nla_put_string(msg
, IFLA_INFO_KIND
, "veth");
1198 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1199 goto nla_put_failure
;
1201 if (!(veth_info
= nla_nest_start(msg
, VETH_INFO_PEER
)))
1202 goto nla_put_failure
;
1204 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1206 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1207 nla_put_string(msg
, IFLA_IFNAME
, cfg
->peer_name
);
1208 if (cfg
->flags
& VETH_OPT_PEER_MACADDR
)
1209 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->peer_macaddr
), cfg
->peer_macaddr
);
1211 nla_nest_end(msg
, veth_info
);
1212 nla_nest_end(msg
, data
);
1213 nla_nest_end(msg
, linkinfo
);
1215 rv
= system_rtnl_call(msg
);
1217 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1218 D(SYSTEM
, "Error adding veth '%s' with peer '%s': %d\n", veth
->ifname
, cfg
->peer_name
, rv
);
1220 D(SYSTEM
, "Error adding veth '%s': %d\n", veth
->ifname
, rv
);
1230 int system_veth_del(struct device
*veth
)
1232 return system_link_del(veth
->ifname
);
1235 static int system_vlan(struct device
*dev
, int id
)
1237 struct vlan_ioctl_args ifr
= {
1238 .cmd
= SET_VLAN_NAME_TYPE_CMD
,
1239 .u
.name_type
= VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
,
1242 ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
1245 ifr
.cmd
= DEL_VLAN_CMD
;
1248 ifr
.cmd
= ADD_VLAN_CMD
;
1251 strncpy(ifr
.device1
, dev
->ifname
, sizeof(ifr
.device1
));
1252 return ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
1255 int system_vlan_add(struct device
*dev
, int id
)
1257 return system_vlan(dev
, id
);
1260 int system_vlan_del(struct device
*dev
)
1262 return system_vlan(dev
, -1);
1265 int system_vlandev_add(struct device
*vlandev
, struct device
*dev
, struct vlandev_config
*cfg
)
1268 struct nlattr
*linkinfo
, *data
;
1269 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
};
1272 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1277 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1278 nla_put_string(msg
, IFLA_IFNAME
, vlandev
->ifname
);
1279 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1281 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1282 goto nla_put_failure
;
1284 nla_put_string(msg
, IFLA_INFO_KIND
, "vlan");
1286 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1287 goto nla_put_failure
;
1289 nla_put_u16(msg
, IFLA_VLAN_ID
, cfg
->vid
);
1291 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
1292 nla_put_u16(msg
, IFLA_VLAN_PROTOCOL
, htons(cfg
->proto
));
1294 if(cfg
->proto
== VLAN_PROTO_8021AD
)
1295 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
);
1298 nla_nest_end(msg
, data
);
1299 nla_nest_end(msg
, linkinfo
);
1301 rv
= system_rtnl_call(msg
);
1303 D(SYSTEM
, "Error adding vlandev '%s' over '%s': %d\n", vlandev
->ifname
, dev
->ifname
, rv
);
1312 int system_vlandev_del(struct device
*vlandev
)
1314 return system_link_del(vlandev
->ifname
);
1318 system_if_get_settings(struct device
*dev
, struct device_settings
*s
)
1323 memset(&ifr
, 0, sizeof(ifr
));
1324 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
1326 if (ioctl(sock_ioctl
, SIOCGIFMTU
, &ifr
) == 0) {
1327 s
->mtu
= ifr
.ifr_mtu
;
1328 s
->flags
|= DEV_OPT_MTU
;
1331 s
->mtu6
= system_update_ipv6_mtu(dev
, 0);
1333 s
->flags
|= DEV_OPT_MTU6
;
1335 if (ioctl(sock_ioctl
, SIOCGIFTXQLEN
, &ifr
) == 0) {
1336 s
->txqueuelen
= ifr
.ifr_qlen
;
1337 s
->flags
|= DEV_OPT_TXQUEUELEN
;
1340 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0) {
1341 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
1342 s
->flags
|= DEV_OPT_MACADDR
;
1345 if (!system_get_disable_ipv6(dev
, buf
, sizeof(buf
))) {
1346 s
->ipv6
= !strtoul(buf
, NULL
, 0);
1347 s
->flags
|= DEV_OPT_IPV6
;
1350 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) == 0) {
1351 s
->promisc
= ifr
.ifr_flags
& IFF_PROMISC
;
1352 s
->flags
|= DEV_OPT_PROMISC
;
1354 s
->multicast
= ifr
.ifr_flags
& IFF_MULTICAST
;
1355 s
->flags
|= DEV_OPT_MULTICAST
;
1358 if (!system_get_rpfilter(dev
, buf
, sizeof(buf
))) {
1359 s
->rpfilter
= strtoul(buf
, NULL
, 0);
1360 s
->flags
|= DEV_OPT_RPFILTER
;
1363 if (!system_get_acceptlocal(dev
, buf
, sizeof(buf
))) {
1364 s
->acceptlocal
= strtoul(buf
, NULL
, 0);
1365 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
1368 if (!system_get_igmpversion(dev
, buf
, sizeof(buf
))) {
1369 s
->igmpversion
= strtoul(buf
, NULL
, 0);
1370 s
->flags
|= DEV_OPT_IGMPVERSION
;
1373 if (!system_get_mldversion(dev
, buf
, sizeof(buf
))) {
1374 s
->mldversion
= strtoul(buf
, NULL
, 0);
1375 s
->flags
|= DEV_OPT_MLDVERSION
;
1378 if (!system_get_neigh4reachabletime(dev
, buf
, sizeof(buf
))) {
1379 s
->neigh4reachabletime
= strtoul(buf
, NULL
, 0);
1380 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1383 if (!system_get_neigh6reachabletime(dev
, buf
, sizeof(buf
))) {
1384 s
->neigh6reachabletime
= strtoul(buf
, NULL
, 0);
1385 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1388 if (!system_get_neigh4locktime(dev
, buf
, sizeof(buf
))) {
1389 s
->neigh4locktime
= strtol(buf
, NULL
, 0);
1390 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
1393 if (!system_get_neigh4gcstaletime(dev
, buf
, sizeof(buf
))) {
1394 s
->neigh4gcstaletime
= strtoul(buf
, NULL
, 0);
1395 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1398 if (!system_get_neigh6gcstaletime(dev
, buf
, sizeof(buf
))) {
1399 s
->neigh6gcstaletime
= strtoul(buf
, NULL
, 0);
1400 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1403 if (!system_get_dadtransmits(dev
, buf
, sizeof(buf
))) {
1404 s
->dadtransmits
= strtoul(buf
, NULL
, 0);
1405 s
->flags
|= DEV_OPT_DADTRANSMITS
;
1408 if (!system_get_sendredirects(dev
, buf
, sizeof(buf
))) {
1409 s
->sendredirects
= strtoul(buf
, NULL
, 0);
1410 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
1415 system_if_apply_settings(struct device
*dev
, struct device_settings
*s
, unsigned int apply_mask
)
1420 memset(&ifr
, 0, sizeof(ifr
));
1421 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
1422 if (s
->flags
& DEV_OPT_MTU
& apply_mask
) {
1423 ifr
.ifr_mtu
= s
->mtu
;
1424 if (ioctl(sock_ioctl
, SIOCSIFMTU
, &ifr
) < 0)
1425 s
->flags
&= ~DEV_OPT_MTU
;
1427 if (s
->flags
& DEV_OPT_MTU6
& apply_mask
) {
1428 system_update_ipv6_mtu(dev
, s
->mtu6
);
1430 if (s
->flags
& DEV_OPT_TXQUEUELEN
& apply_mask
) {
1431 ifr
.ifr_qlen
= s
->txqueuelen
;
1432 if (ioctl(sock_ioctl
, SIOCSIFTXQLEN
, &ifr
) < 0)
1433 s
->flags
&= ~DEV_OPT_TXQUEUELEN
;
1435 if ((s
->flags
& DEV_OPT_MACADDR
& apply_mask
) && !dev
->external
) {
1436 ifr
.ifr_hwaddr
.sa_family
= ARPHRD_ETHER
;
1437 memcpy(&ifr
.ifr_hwaddr
.sa_data
, s
->macaddr
, sizeof(s
->macaddr
));
1438 if (ioctl(sock_ioctl
, SIOCSIFHWADDR
, &ifr
) < 0)
1439 s
->flags
&= ~DEV_OPT_MACADDR
;
1441 if (s
->flags
& DEV_OPT_IPV6
& apply_mask
)
1442 system_set_disable_ipv6(dev
, s
->ipv6
? "0" : "1");
1443 if (s
->flags
& DEV_OPT_PROMISC
& apply_mask
) {
1444 if (system_if_flags(dev
->ifname
, s
->promisc
? IFF_PROMISC
: 0,
1445 !s
->promisc
? IFF_PROMISC
: 0) < 0)
1446 s
->flags
&= ~DEV_OPT_PROMISC
;
1448 if (s
->flags
& DEV_OPT_RPFILTER
& apply_mask
) {
1449 snprintf(buf
, sizeof(buf
), "%u", s
->rpfilter
);
1450 system_set_rpfilter(dev
, buf
);
1452 if (s
->flags
& DEV_OPT_ACCEPTLOCAL
& apply_mask
)
1453 system_set_acceptlocal(dev
, s
->acceptlocal
? "1" : "0");
1454 if (s
->flags
& DEV_OPT_IGMPVERSION
& apply_mask
) {
1455 snprintf(buf
, sizeof(buf
), "%u", s
->igmpversion
);
1456 system_set_igmpversion(dev
, buf
);
1458 if (s
->flags
& DEV_OPT_MLDVERSION
& apply_mask
) {
1459 snprintf(buf
, sizeof(buf
), "%u", s
->mldversion
);
1460 system_set_mldversion(dev
, buf
);
1462 if (s
->flags
& DEV_OPT_NEIGHREACHABLETIME
& apply_mask
) {
1463 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4reachabletime
);
1464 system_set_neigh4reachabletime(dev
, buf
);
1465 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6reachabletime
);
1466 system_set_neigh6reachabletime(dev
, buf
);
1468 if (s
->flags
& DEV_OPT_NEIGHLOCKTIME
& apply_mask
) {
1469 snprintf(buf
, sizeof(buf
), "%d", s
->neigh4locktime
);
1470 system_set_neigh4locktime(dev
, buf
);
1472 if (s
->flags
& DEV_OPT_NEIGHGCSTALETIME
& apply_mask
) {
1473 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4gcstaletime
);
1474 system_set_neigh4gcstaletime(dev
, buf
);
1475 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6gcstaletime
);
1476 system_set_neigh6gcstaletime(dev
, buf
);
1478 if (s
->flags
& DEV_OPT_DADTRANSMITS
& apply_mask
) {
1479 snprintf(buf
, sizeof(buf
), "%u", s
->dadtransmits
);
1480 system_set_dadtransmits(dev
, buf
);
1482 if (s
->flags
& DEV_OPT_MULTICAST
& apply_mask
) {
1483 if (system_if_flags(dev
->ifname
, s
->multicast
? IFF_MULTICAST
: 0,
1484 !s
->multicast
? IFF_MULTICAST
: 0) < 0)
1485 s
->flags
&= ~DEV_OPT_MULTICAST
;
1487 if (s
->flags
& DEV_OPT_SENDREDIRECTS
& apply_mask
)
1488 system_set_sendredirects(dev
, s
->sendredirects
? "1" : "0");
1491 int system_if_up(struct device
*dev
)
1493 system_if_get_settings(dev
, &dev
->orig_settings
);
1494 /* Only keep orig settings based on what needs to be set */
1495 dev
->orig_settings
.valid_flags
= dev
->orig_settings
.flags
;
1496 dev
->orig_settings
.flags
&= dev
->settings
.flags
;
1497 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
1498 return system_if_flags(dev
->ifname
, IFF_UP
, 0);
1501 int system_if_down(struct device
*dev
)
1503 int ret
= system_if_flags(dev
->ifname
, 0, IFF_UP
);
1504 system_if_apply_settings(dev
, &dev
->orig_settings
, dev
->orig_settings
.flags
);
1508 struct if_check_data
{
1514 #ifndef IFF_LOWER_UP
1515 #define IFF_LOWER_UP 0x10000
1518 static int cb_if_check_valid(struct nl_msg
*msg
, void *arg
)
1520 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
1521 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
1522 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1524 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
1527 device_set_present(chk
->dev
, ifi
->ifi_index
> 0 ? true : false);
1528 device_set_link(chk
->dev
, ifi
->ifi_flags
& IFF_LOWER_UP
? true : false);
1533 static int cb_if_check_ack(struct nl_msg
*msg
, void *arg
)
1535 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1540 static int cb_if_check_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1542 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1544 device_set_present(chk
->dev
, false);
1545 device_set_link(chk
->dev
, false);
1546 chk
->pending
= err
->error
;
1551 int system_if_check(struct device
*dev
)
1553 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1555 struct ifinfomsg ifi
= {
1556 .ifi_family
= AF_UNSPEC
,
1559 struct if_check_data chk
= {
1565 msg
= nlmsg_alloc_simple(RTM_GETLINK
, 0);
1569 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
1570 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
1573 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_check_valid
, &chk
);
1574 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_check_ack
, &chk
);
1575 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_check_error
, &chk
);
1577 nl_send_auto_complete(sock_rtnl
, msg
);
1578 while (chk
.pending
> 0)
1579 nl_recvmsgs(sock_rtnl
, cb
);
1591 system_if_get_parent(struct device
*dev
)
1593 char buf
[64], *devname
;
1594 int ifindex
, iflink
, len
;
1597 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/iflink", dev
->ifname
);
1598 f
= fopen(buf
, "r");
1602 len
= fread(buf
, 1, sizeof(buf
) - 1, f
);
1609 iflink
= strtoul(buf
, NULL
, 0);
1610 ifindex
= system_if_resolve(dev
);
1611 if (!iflink
|| iflink
== ifindex
)
1614 devname
= if_indextoname(iflink
, buf
);
1618 return device_get(devname
, true);
1622 read_string_file(int dir_fd
, const char *file
, char *buf
, int len
)
1628 fd
= openat(dir_fd
, file
, O_RDONLY
);
1633 len
= read(fd
, buf
, len
- 1);
1637 } else if (len
> 0) {
1640 c
= strchr(buf
, '\n');
1653 read_uint64_file(int dir_fd
, const char *file
, uint64_t *val
)
1658 ret
= read_string_file(dir_fd
, file
, buf
, sizeof(buf
));
1660 *val
= strtoull(buf
, NULL
, 0);
1665 /* Assume advertised flags == supported flags */
1666 static const struct {
1669 } ethtool_link_modes
[] = {
1670 { ADVERTISED_10baseT_Half
, "10H" },
1671 { ADVERTISED_10baseT_Full
, "10F" },
1672 { ADVERTISED_100baseT_Half
, "100H" },
1673 { ADVERTISED_100baseT_Full
, "100F" },
1674 { ADVERTISED_1000baseT_Half
, "1000H" },
1675 { ADVERTISED_1000baseT_Full
, "1000F" },
1678 static void system_add_link_modes(struct blob_buf
*b
, __u32 mask
)
1681 for (i
= 0; i
< ARRAY_SIZE(ethtool_link_modes
); i
++) {
1682 if (mask
& ethtool_link_modes
[i
].mask
)
1683 blobmsg_add_string(b
, NULL
, ethtool_link_modes
[i
].name
);
1688 system_if_force_external(const char *ifname
)
1693 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/phy80211", ifname
);
1694 return stat(buf
, &s
) == 0;
1698 system_if_dump_info(struct device
*dev
, struct blob_buf
*b
)
1700 struct ethtool_cmd ecmd
;
1706 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s", dev
->ifname
);
1707 dir_fd
= open(buf
, O_DIRECTORY
);
1709 memset(&ecmd
, 0, sizeof(ecmd
));
1710 memset(&ifr
, 0, sizeof(ifr
));
1711 strcpy(ifr
.ifr_name
, dev
->ifname
);
1712 ifr
.ifr_data
= (caddr_t
) &ecmd
;
1713 ecmd
.cmd
= ETHTOOL_GSET
;
1715 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) == 0) {
1716 c
= blobmsg_open_array(b
, "link-advertising");
1717 system_add_link_modes(b
, ecmd
.advertising
);
1718 blobmsg_close_array(b
, c
);
1720 c
= blobmsg_open_array(b
, "link-supported");
1721 system_add_link_modes(b
, ecmd
.supported
);
1722 blobmsg_close_array(b
, c
);
1724 s
= blobmsg_alloc_string_buffer(b
, "speed", 8);
1725 snprintf(s
, 8, "%d%c", ethtool_cmd_speed(&ecmd
),
1726 ecmd
.duplex
== DUPLEX_HALF
? 'H' : 'F');
1727 blobmsg_add_string_buffer(b
);
1735 system_if_dump_stats(struct device
*dev
, struct blob_buf
*b
)
1737 const char *const counters
[] = {
1738 "collisions", "rx_frame_errors", "tx_compressed",
1739 "multicast", "rx_length_errors", "tx_dropped",
1740 "rx_bytes", "rx_missed_errors", "tx_errors",
1741 "rx_compressed", "rx_over_errors", "tx_fifo_errors",
1742 "rx_crc_errors", "rx_packets", "tx_heartbeat_errors",
1743 "rx_dropped", "tx_aborted_errors", "tx_packets",
1744 "rx_errors", "tx_bytes", "tx_window_errors",
1745 "rx_fifo_errors", "tx_carrier_errors",
1752 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/statistics", dev
->ifname
);
1753 stats_dir
= open(buf
, O_DIRECTORY
);
1757 for (i
= 0; i
< ARRAY_SIZE(counters
); i
++)
1758 if (read_uint64_file(stats_dir
, counters
[i
], &val
))
1759 blobmsg_add_u64(b
, counters
[i
], val
);
1765 static int system_addr(struct device
*dev
, struct device_addr
*addr
, int cmd
)
1767 bool v4
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
);
1768 int alen
= v4
? 4 : 16;
1769 unsigned int flags
= 0;
1770 struct ifaddrmsg ifa
= {
1771 .ifa_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
1772 .ifa_prefixlen
= addr
->mask
,
1773 .ifa_index
= dev
->ifindex
,
1777 if (cmd
== RTM_NEWADDR
)
1778 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
1780 msg
= nlmsg_alloc_simple(cmd
, flags
);
1784 nlmsg_append(msg
, &ifa
, sizeof(ifa
), 0);
1785 nla_put(msg
, IFA_LOCAL
, alen
, &addr
->addr
);
1787 if (addr
->broadcast
)
1788 nla_put_u32(msg
, IFA_BROADCAST
, addr
->broadcast
);
1789 if (addr
->point_to_point
)
1790 nla_put_u32(msg
, IFA_ADDRESS
, addr
->point_to_point
);
1792 time_t now
= system_get_rtime();
1793 struct ifa_cacheinfo cinfo
= {0xffffffffU
, 0xffffffffU
, 0, 0};
1795 if (addr
->preferred_until
) {
1796 int64_t preferred
= addr
->preferred_until
- now
;
1799 else if (preferred
> UINT32_MAX
)
1800 preferred
= UINT32_MAX
;
1802 cinfo
.ifa_prefered
= preferred
;
1805 if (addr
->valid_until
) {
1806 int64_t valid
= addr
->valid_until
- now
;
1811 else if (valid
> UINT32_MAX
)
1814 cinfo
.ifa_valid
= valid
;
1817 nla_put(msg
, IFA_CACHEINFO
, sizeof(cinfo
), &cinfo
);
1819 if (cmd
== RTM_NEWADDR
&& (addr
->flags
& DEVADDR_OFFLINK
))
1820 nla_put_u32(msg
, IFA_FLAGS
, IFA_F_NOPREFIXROUTE
);
1823 return system_rtnl_call(msg
);
1826 int system_add_address(struct device
*dev
, struct device_addr
*addr
)
1828 return system_addr(dev
, addr
, RTM_NEWADDR
);
1831 int system_del_address(struct device
*dev
, struct device_addr
*addr
)
1833 return system_addr(dev
, addr
, RTM_DELADDR
);
1836 static int system_rt(struct device
*dev
, struct device_route
*route
, int cmd
)
1838 int alen
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
1840 unsigned int flags
= 0;
1843 have_gw
= !!route
->nexthop
.in
.s_addr
;
1845 have_gw
= route
->nexthop
.in6
.s6_addr32
[0] ||
1846 route
->nexthop
.in6
.s6_addr32
[1] ||
1847 route
->nexthop
.in6
.s6_addr32
[2] ||
1848 route
->nexthop
.in6
.s6_addr32
[3];
1850 unsigned int table
= (route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))
1851 ? route
->table
: RT_TABLE_MAIN
;
1853 struct rtmsg rtm
= {
1854 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
1855 .rtm_dst_len
= route
->mask
,
1856 .rtm_src_len
= route
->sourcemask
,
1857 .rtm_table
= (table
< 256) ? table
: RT_TABLE_UNSPEC
,
1858 .rtm_protocol
= (route
->flags
& DEVROUTE_PROTO
) ? route
->proto
: RTPROT_STATIC
,
1859 .rtm_scope
= RT_SCOPE_NOWHERE
,
1860 .rtm_type
= (cmd
== RTM_DELROUTE
) ? 0: RTN_UNICAST
,
1861 .rtm_flags
= (route
->flags
& DEVROUTE_ONLINK
) ? RTNH_F_ONLINK
: 0,
1865 if (cmd
== RTM_NEWROUTE
) {
1866 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
1868 if (!dev
) { // Add null-route
1869 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
1870 rtm
.rtm_type
= RTN_UNREACHABLE
;
1873 rtm
.rtm_scope
= (have_gw
) ? RT_SCOPE_UNIVERSE
: RT_SCOPE_LINK
;
1876 if (route
->flags
& DEVROUTE_TYPE
) {
1877 rtm
.rtm_type
= route
->type
;
1878 if (!(route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))) {
1879 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_BROADCAST
||
1880 rtm
.rtm_type
== RTN_NAT
|| rtm
.rtm_type
== RTN_ANYCAST
)
1881 rtm
.rtm_table
= RT_TABLE_LOCAL
;
1884 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_NAT
) {
1885 rtm
.rtm_scope
= RT_SCOPE_HOST
;
1886 } else if (rtm
.rtm_type
== RTN_BROADCAST
|| rtm
.rtm_type
== RTN_MULTICAST
||
1887 rtm
.rtm_type
== RTN_ANYCAST
) {
1888 rtm
.rtm_scope
= RT_SCOPE_LINK
;
1889 } else if (rtm
.rtm_type
== RTN_BLACKHOLE
|| rtm
.rtm_type
== RTN_UNREACHABLE
||
1890 rtm
.rtm_type
== RTN_PROHIBIT
|| rtm
.rtm_type
== RTN_FAILED_POLICY
||
1891 rtm
.rtm_type
== RTN_THROW
) {
1892 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
1897 msg
= nlmsg_alloc_simple(cmd
, flags
);
1901 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
1904 nla_put(msg
, RTA_DST
, alen
, &route
->addr
);
1906 if (route
->sourcemask
) {
1907 if (rtm
.rtm_family
== AF_INET
)
1908 nla_put(msg
, RTA_PREFSRC
, alen
, &route
->source
);
1910 nla_put(msg
, RTA_SRC
, alen
, &route
->source
);
1913 if (route
->metric
> 0)
1914 nla_put_u32(msg
, RTA_PRIORITY
, route
->metric
);
1917 nla_put(msg
, RTA_GATEWAY
, alen
, &route
->nexthop
);
1920 nla_put_u32(msg
, RTA_OIF
, dev
->ifindex
);
1923 nla_put_u32(msg
, RTA_TABLE
, table
);
1925 if (route
->flags
& DEVROUTE_MTU
) {
1926 struct nlattr
*metrics
;
1928 if (!(metrics
= nla_nest_start(msg
, RTA_METRICS
)))
1929 goto nla_put_failure
;
1931 nla_put_u32(msg
, RTAX_MTU
, route
->mtu
);
1933 nla_nest_end(msg
, metrics
);
1936 return system_rtnl_call(msg
);
1943 int system_add_route(struct device
*dev
, struct device_route
*route
)
1945 return system_rt(dev
, route
, RTM_NEWROUTE
);
1948 int system_del_route(struct device
*dev
, struct device_route
*route
)
1950 return system_rt(dev
, route
, RTM_DELROUTE
);
1953 int system_flush_routes(void)
1955 const char *names
[] = {
1956 "/proc/sys/net/ipv4/route/flush",
1957 "/proc/sys/net/ipv6/route/flush"
1961 for (i
= 0; i
< ARRAY_SIZE(names
); i
++) {
1962 fd
= open(names
[i
], O_WRONLY
);
1966 if (write(fd
, "-1", 2)) {}
1972 bool system_resolve_rt_type(const char *type
, unsigned int *id
)
1974 return system_rtn_aton(type
, id
);
1977 bool system_resolve_rt_proto(const char *type
, unsigned int *id
)
1981 unsigned int n
, proto
= 256;
1982 n
= strtoul(type
, &e
, 0);
1983 if (!*e
&& e
!= type
)
1985 else if (!strcmp(type
, "unspec"))
1986 proto
= RTPROT_UNSPEC
;
1987 else if (!strcmp(type
, "kernel"))
1988 proto
= RTPROT_KERNEL
;
1989 else if (!strcmp(type
, "boot"))
1990 proto
= RTPROT_BOOT
;
1991 else if (!strcmp(type
, "static"))
1992 proto
= RTPROT_STATIC
;
1993 else if ((f
= fopen("/etc/iproute2/rt_protos", "r")) != NULL
) {
1994 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
) {
1995 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
1998 n
= strtoul(e
, NULL
, 10);
1999 e
= strtok(NULL
, " \t\n");
2001 if (e
&& !strcmp(e
, type
)) {
2016 bool system_resolve_rt_table(const char *name
, unsigned int *id
)
2020 unsigned int n
, table
= RT_TABLE_UNSPEC
;
2022 /* first try to parse table as number */
2023 if ((n
= strtoul(name
, &e
, 0)) > 0 && !*e
)
2026 /* handle well known aliases */
2027 else if (!strcmp(name
, "default"))
2028 table
= RT_TABLE_DEFAULT
;
2029 else if (!strcmp(name
, "main"))
2030 table
= RT_TABLE_MAIN
;
2031 else if (!strcmp(name
, "local"))
2032 table
= RT_TABLE_LOCAL
;
2034 /* try to look up name in /etc/iproute2/rt_tables */
2035 else if ((f
= fopen("/etc/iproute2/rt_tables", "r")) != NULL
)
2037 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
)
2039 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2042 n
= strtoul(e
, NULL
, 10);
2043 e
= strtok(NULL
, " \t\n");
2045 if (e
&& !strcmp(e
, name
))
2055 if (table
== RT_TABLE_UNSPEC
)
2062 bool system_is_default_rt_table(unsigned int id
)
2064 return (id
== RT_TABLE_MAIN
);
2067 bool system_resolve_rpfilter(const char *filter
, unsigned int *id
)
2072 if (!strcmp(filter
, "strict"))
2074 else if (!strcmp(filter
, "loose"))
2077 n
= strtoul(filter
, &e
, 0);
2078 if (*e
|| e
== filter
|| n
> 2)
2086 static int system_iprule(struct iprule
*rule
, int cmd
)
2088 int alen
= ((rule
->flags
& IPRULE_FAMILY
) == IPRULE_INET4
) ? 4 : 16;
2091 struct rtmsg rtm
= {
2092 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2093 .rtm_protocol
= RTPROT_STATIC
,
2094 .rtm_scope
= RT_SCOPE_UNIVERSE
,
2095 .rtm_table
= RT_TABLE_UNSPEC
,
2096 .rtm_type
= RTN_UNSPEC
,
2100 if (cmd
== RTM_NEWRULE
)
2101 rtm
.rtm_type
= RTN_UNICAST
;
2104 rtm
.rtm_flags
|= FIB_RULE_INVERT
;
2106 if (rule
->flags
& IPRULE_SRC
)
2107 rtm
.rtm_src_len
= rule
->src_mask
;
2109 if (rule
->flags
& IPRULE_DEST
)
2110 rtm
.rtm_dst_len
= rule
->dest_mask
;
2112 if (rule
->flags
& IPRULE_TOS
)
2113 rtm
.rtm_tos
= rule
->tos
;
2115 if (rule
->flags
& IPRULE_LOOKUP
) {
2116 if (rule
->lookup
< 256)
2117 rtm
.rtm_table
= rule
->lookup
;
2120 if (rule
->flags
& IPRULE_ACTION
)
2121 rtm
.rtm_type
= rule
->action
;
2122 else if (rule
->flags
& IPRULE_GOTO
)
2123 rtm
.rtm_type
= FR_ACT_GOTO
;
2124 else if (!(rule
->flags
& (IPRULE_LOOKUP
| IPRULE_ACTION
| IPRULE_GOTO
)))
2125 rtm
.rtm_type
= FR_ACT_NOP
;
2127 msg
= nlmsg_alloc_simple(cmd
, NLM_F_REQUEST
);
2132 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
2134 if (rule
->flags
& IPRULE_IN
)
2135 nla_put(msg
, FRA_IFNAME
, strlen(rule
->in_dev
) + 1, rule
->in_dev
);
2137 if (rule
->flags
& IPRULE_OUT
)
2138 nla_put(msg
, FRA_OIFNAME
, strlen(rule
->out_dev
) + 1, rule
->out_dev
);
2140 if (rule
->flags
& IPRULE_SRC
)
2141 nla_put(msg
, FRA_SRC
, alen
, &rule
->src_addr
);
2143 if (rule
->flags
& IPRULE_DEST
)
2144 nla_put(msg
, FRA_DST
, alen
, &rule
->dest_addr
);
2146 if (rule
->flags
& IPRULE_PRIORITY
)
2147 nla_put_u32(msg
, FRA_PRIORITY
, rule
->priority
);
2148 else if (cmd
== RTM_NEWRULE
)
2149 nla_put_u32(msg
, FRA_PRIORITY
, rule
->order
);
2151 if (rule
->flags
& IPRULE_FWMARK
)
2152 nla_put_u32(msg
, FRA_FWMARK
, rule
->fwmark
);
2154 if (rule
->flags
& IPRULE_FWMASK
)
2155 nla_put_u32(msg
, FRA_FWMASK
, rule
->fwmask
);
2157 if (rule
->flags
& IPRULE_LOOKUP
) {
2158 if (rule
->lookup
>= 256)
2159 nla_put_u32(msg
, FRA_TABLE
, rule
->lookup
);
2162 if (rule
->flags
& IPRULE_SUP_PREFIXLEN
)
2163 nla_put_u32(msg
, FRA_SUPPRESS_PREFIXLEN
, rule
->sup_prefixlen
);
2165 if (rule
->flags
& IPRULE_GOTO
)
2166 nla_put_u32(msg
, FRA_GOTO
, rule
->gotoid
);
2168 return system_rtnl_call(msg
);
2171 int system_add_iprule(struct iprule
*rule
)
2173 return system_iprule(rule
, RTM_NEWRULE
);
2176 int system_del_iprule(struct iprule
*rule
)
2178 return system_iprule(rule
, RTM_DELRULE
);
2181 int system_flush_iprules(void)
2186 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET
);
2187 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET6
);
2189 memset(&rule
, 0, sizeof(rule
));
2192 rule
.flags
= IPRULE_INET4
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
2195 rule
.lookup
= RT_TABLE_LOCAL
;
2196 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2198 rule
.priority
= 32766;
2199 rule
.lookup
= RT_TABLE_MAIN
;
2200 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2202 rule
.priority
= 32767;
2203 rule
.lookup
= RT_TABLE_DEFAULT
;
2204 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2207 rule
.flags
= IPRULE_INET6
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
2210 rule
.lookup
= RT_TABLE_LOCAL
;
2211 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2213 rule
.priority
= 32766;
2214 rule
.lookup
= RT_TABLE_MAIN
;
2215 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2220 bool system_resolve_iprule_action(const char *action
, unsigned int *id
)
2222 return system_rtn_aton(action
, id
);
2225 time_t system_get_rtime(void)
2230 if (syscall(__NR_clock_gettime
, CLOCK_MONOTONIC
, &ts
) == 0)
2233 if (gettimeofday(&tv
, NULL
) == 0)
2240 #define IP_DF 0x4000
2243 static int tunnel_ioctl(const char *name
, int cmd
, void *p
)
2247 memset(&ifr
, 0, sizeof(ifr
));
2248 strncpy(ifr
.ifr_name
, name
, sizeof(ifr
.ifr_name
));
2249 ifr
.ifr_ifru
.ifru_data
= p
;
2250 return ioctl(sock_ioctl
, cmd
, &ifr
);
2253 #ifdef IFLA_IPTUN_MAX
2254 static int system_add_ip6_tunnel(const char *name
, const unsigned int link
,
2255 struct blob_attr
**tb
)
2257 struct nl_msg
*nlm
= nlmsg_alloc_simple(RTM_NEWLINK
,
2258 NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2259 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
};
2260 struct blob_attr
*cur
;
2261 int ret
= 0, ttl
= 0;
2266 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2267 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2270 nla_put_u32(nlm
, IFLA_LINK
, link
);
2272 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2278 nla_put_string(nlm
, IFLA_INFO_KIND
, "ip6tnl");
2279 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2286 nla_put_u32(nlm
, IFLA_IPTUN_LINK
, link
);
2288 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2289 ttl
= blobmsg_get_u32(cur
);
2291 nla_put_u8(nlm
, IFLA_IPTUN_PROTO
, IPPROTO_IPIP
);
2292 nla_put_u8(nlm
, IFLA_IPTUN_TTL
, (ttl
) ? ttl
: 64);
2293 nla_put_u8(nlm
, IFLA_IPTUN_ENCAP_LIMIT
, 4);
2295 struct in6_addr in6buf
;
2296 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2297 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2301 nla_put(nlm
, IFLA_IPTUN_LOCAL
, sizeof(in6buf
), &in6buf
);
2304 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2305 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2309 nla_put(nlm
, IFLA_IPTUN_REMOTE
, sizeof(in6buf
), &in6buf
);
2312 #ifdef IFLA_IPTUN_FMR_MAX
2313 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2314 struct nlattr
*fmrs
= nla_nest_start(nlm
, IFLA_IPTUN_FMRS
);
2315 struct blob_attr
*dcur
;
2316 unsigned drem
, fmrcnt
= 0;
2318 blobmsg_for_each_attr(dcur
, cur
, drem
) {
2319 if (blobmsg_type(dcur
) != BLOBMSG_TYPE_ARRAY
||
2320 strcmp(blobmsg_name(dcur
), "fmrs") ||
2321 blobmsg_check_array(dcur
, BLOBMSG_TYPE_UNSPEC
) <= 0)
2324 struct blob_attr
*rcur
;
2326 blobmsg_for_each_attr(rcur
, dcur
, rrem
) {
2327 struct blob_attr
*tb_fmr
[__FMR_DATA_ATTR_MAX
], *tb_cur
;
2328 struct in6_addr ip6prefix
;
2329 struct in_addr ip4prefix
;
2330 unsigned ip4len
, ip6len
, ealen
, offset
;
2332 blobmsg_parse(fmr_data_attr_list
.params
, __FMR_DATA_ATTR_MAX
, tb_fmr
,
2333 blobmsg_data(rcur
), blobmsg_len(rcur
));
2335 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX6
]) ||
2336 !parse_ip_and_netmask(AF_INET6
,
2337 blobmsg_data(tb_cur
), &ip6prefix
,
2343 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX4
]) ||
2344 !parse_ip_and_netmask(AF_INET
,
2345 blobmsg_data(tb_cur
), &ip4prefix
,
2351 if (!(tb_cur
= tb_fmr
[FMR_DATA_EALEN
])) {
2355 ealen
= blobmsg_get_u32(tb_cur
);
2357 if (!(tb_cur
= tb_fmr
[FMR_DATA_OFFSET
])) {
2361 offset
= blobmsg_get_u32(tb_cur
);
2363 struct nlattr
*rule
= nla_nest_start(nlm
, ++fmrcnt
);
2365 nla_put(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX
, sizeof(ip6prefix
), &ip6prefix
);
2366 nla_put(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX
, sizeof(ip4prefix
), &ip4prefix
);
2367 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX_LEN
, ip6len
);
2368 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX_LEN
, ip4len
);
2369 nla_put_u8(nlm
, IFLA_IPTUN_FMR_EA_LEN
, ealen
);
2370 nla_put_u8(nlm
, IFLA_IPTUN_FMR_OFFSET
, offset
);
2372 nla_nest_end(nlm
, rule
);
2375 nla_nest_end(nlm
, fmrs
);
2379 nla_nest_end(nlm
, infodata
);
2380 nla_nest_end(nlm
, linkinfo
);
2382 return system_rtnl_call(nlm
);
2390 #ifdef IFLA_IPTUN_MAX
2391 #define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
2392 static int system_add_gre_tunnel(const char *name
, const char *kind
,
2393 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
2396 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
2397 struct blob_attr
*cur
;
2398 uint32_t ikey
= 0, okey
= 0, flags
= 0, flowinfo
= 0;
2399 uint16_t iflags
= 0, oflags
= 0;
2401 int ret
= 0, ttl
= 0;
2403 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2407 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2408 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2410 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2416 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
2417 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2424 nla_put_u32(nlm
, IFLA_GRE_LINK
, link
);
2426 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2427 ttl
= blobmsg_get_u32(cur
);
2429 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
2430 char *str
= blobmsg_get_string(cur
);
2431 if (strcmp(str
, "inherit")) {
2434 if (!system_tos_aton(str
, &uval
)) {
2440 flowinfo
|= htonl(uval
<< 20) & IP6_FLOWINFO_TCLASS
;
2445 flags
|= IP6_TNL_F_USE_ORIG_TCLASS
;
2451 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2452 struct blob_attr
*tb_data
[__GRE_DATA_ATTR_MAX
];
2454 blobmsg_parse(gre_data_attr_list
.params
, __GRE_DATA_ATTR_MAX
, tb_data
,
2455 blobmsg_data(cur
), blobmsg_len(cur
));
2457 if ((cur
= tb_data
[GRE_DATA_IKEY
])) {
2458 if ((ikey
= blobmsg_get_u32(cur
)))
2462 if ((cur
= tb_data
[GRE_DATA_OKEY
])) {
2463 if ((okey
= blobmsg_get_u32(cur
)))
2467 if ((cur
= tb_data
[GRE_DATA_ICSUM
])) {
2468 if (blobmsg_get_bool(cur
))
2472 if ((cur
= tb_data
[GRE_DATA_OCSUM
])) {
2473 if (blobmsg_get_bool(cur
))
2477 if ((cur
= tb_data
[GRE_DATA_ISEQNO
])) {
2478 if (blobmsg_get_bool(cur
))
2482 if ((cur
= tb
[GRE_DATA_OSEQNO
])) {
2483 if (blobmsg_get_bool(cur
))
2489 struct in6_addr in6buf
;
2490 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2491 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2495 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(in6buf
), &in6buf
);
2498 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2499 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2503 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(in6buf
), &in6buf
);
2505 nla_put_u8(nlm
, IFLA_GRE_ENCAP_LIMIT
, 4);
2508 nla_put_u32(nlm
, IFLA_GRE_FLOWINFO
, flowinfo
);
2511 nla_put_u32(nlm
, IFLA_GRE_FLAGS
, flags
);
2516 struct in_addr inbuf
;
2519 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2520 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2524 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(inbuf
), &inbuf
);
2527 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2528 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2532 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(inbuf
), &inbuf
);
2534 if (IN_MULTICAST(ntohl(inbuf
.s_addr
))) {
2536 okey
= inbuf
.s_addr
;
2541 ikey
= inbuf
.s_addr
;
2547 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
2548 set_df
= blobmsg_get_bool(cur
);
2551 /* ttl != 0 and nopmtudisc are incompatible */
2559 nla_put_u8(nlm
, IFLA_GRE_PMTUDISC
, set_df
? 1 : 0);
2561 nla_put_u8(nlm
, IFLA_GRE_TOS
, tos
);
2565 nla_put_u8(nlm
, IFLA_GRE_TTL
, ttl
);
2568 nla_put_u16(nlm
, IFLA_GRE_OFLAGS
, oflags
);
2571 nla_put_u16(nlm
, IFLA_GRE_IFLAGS
, iflags
);
2574 nla_put_u32(nlm
, IFLA_GRE_OKEY
, htonl(okey
));
2577 nla_put_u32(nlm
, IFLA_GRE_IKEY
, htonl(ikey
));
2579 nla_nest_end(nlm
, infodata
);
2580 nla_nest_end(nlm
, linkinfo
);
2582 return system_rtnl_call(nlm
);
2591 static int system_add_vti_tunnel(const char *name
, const char *kind
,
2592 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
2595 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
2596 struct blob_attr
*cur
;
2599 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2603 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2604 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2606 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2612 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
2613 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2620 nla_put_u32(nlm
, IFLA_VTI_LINK
, link
);
2623 struct in6_addr in6buf
;
2624 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2625 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2629 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(in6buf
), &in6buf
);
2632 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2633 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2637 nla_put(nlm
, IFLA_VTI_REMOTE
, 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(nlm
, IFLA_VTI_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(nlm
, IFLA_VTI_REMOTE
, sizeof(inbuf
), &inbuf
);
2661 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2662 struct blob_attr
*tb_data
[__VTI_DATA_ATTR_MAX
];
2663 uint32_t ikey
= 0, okey
= 0;
2665 blobmsg_parse(vti_data_attr_list
.params
, __VTI_DATA_ATTR_MAX
, tb_data
,
2666 blobmsg_data(cur
), blobmsg_len(cur
));
2668 if ((cur
= tb_data
[VTI_DATA_IKEY
])) {
2669 if ((ikey
= blobmsg_get_u32(cur
)))
2670 nla_put_u32(nlm
, IFLA_VTI_IKEY
, htonl(ikey
));
2673 if ((cur
= tb_data
[VTI_DATA_OKEY
])) {
2674 if ((okey
= blobmsg_get_u32(cur
)))
2675 nla_put_u32(nlm
, IFLA_VTI_OKEY
, htonl(okey
));
2679 nla_nest_end(nlm
, infodata
);
2680 nla_nest_end(nlm
, linkinfo
);
2682 return system_rtnl_call(nlm
);
2690 #ifdef IFLA_VXLAN_MAX
2691 static int system_add_vxlan(const char *name
, const unsigned int link
, struct blob_attr
**tb
, bool v6
)
2693 struct blob_attr
*tb_data
[__VXLAN_DATA_ATTR_MAX
];
2695 struct nlattr
*linkinfo
, *data
;
2696 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
2697 struct blob_attr
*cur
;
2700 if ((cur
= tb
[TUNNEL_ATTR_DATA
]))
2701 blobmsg_parse(vxlan_data_attr_list
.params
, __VXLAN_DATA_ATTR_MAX
, tb_data
,
2702 blobmsg_data(cur
), blobmsg_len(cur
));
2706 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
2711 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
2713 nla_put_string(msg
, IFLA_IFNAME
, name
);
2715 if ((cur
= tb_data
[VXLAN_DATA_ATTR_MACADDR
])) {
2716 struct ether_addr
*ea
= ether_aton(blobmsg_get_string(cur
));
2722 nla_put(msg
, IFLA_ADDRESS
, ETH_ALEN
, ea
);
2725 if ((cur
= tb
[TUNNEL_ATTR_MTU
])) {
2726 uint32_t mtu
= blobmsg_get_u32(cur
);
2727 nla_put_u32(msg
, IFLA_MTU
, mtu
);
2730 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
))) {
2735 nla_put_string(msg
, IFLA_INFO_KIND
, "vxlan");
2737 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
))) {
2743 nla_put_u32(msg
, IFLA_VXLAN_LINK
, link
);
2745 if ((cur
= tb_data
[VXLAN_DATA_ATTR_ID
])) {
2746 uint32_t id
= blobmsg_get_u32(cur
);
2747 if (id
>= (1u << 24) - 1) {
2752 nla_put_u32(msg
, IFLA_VXLAN_ID
, id
);
2756 struct in6_addr in6buf
;
2757 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2758 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2762 nla_put(msg
, IFLA_VXLAN_LOCAL6
, sizeof(in6buf
), &in6buf
);
2765 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2766 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2770 nla_put(msg
, IFLA_VXLAN_GROUP6
, sizeof(in6buf
), &in6buf
);
2773 struct in_addr inbuf
;
2775 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2776 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2780 nla_put(msg
, IFLA_VXLAN_LOCAL
, sizeof(inbuf
), &inbuf
);
2783 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2784 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2788 nla_put(msg
, IFLA_VXLAN_GROUP
, sizeof(inbuf
), &inbuf
);
2792 uint32_t port
= 4789;
2793 if ((cur
= tb_data
[VXLAN_DATA_ATTR_PORT
])) {
2794 port
= blobmsg_get_u32(cur
);
2795 if (port
< 1 || port
> 65535) {
2800 nla_put_u16(msg
, IFLA_VXLAN_PORT
, htons(port
));
2802 if ((cur
= tb_data
[VXLAN_DATA_ATTR_RXCSUM
])) {
2803 bool rxcsum
= blobmsg_get_bool(cur
);
2804 nla_put_u8(msg
, IFLA_VXLAN_UDP_ZERO_CSUM6_RX
, !rxcsum
);
2807 if ((cur
= tb_data
[VXLAN_DATA_ATTR_TXCSUM
])) {
2808 bool txcsum
= blobmsg_get_bool(cur
);
2809 nla_put_u8(msg
, IFLA_VXLAN_UDP_CSUM
, txcsum
);
2810 nla_put_u8(msg
, IFLA_VXLAN_UDP_ZERO_CSUM6_TX
, !txcsum
);
2813 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
2814 char *str
= blobmsg_get_string(cur
);
2817 if (strcmp(str
, "inherit")) {
2818 if (!system_tos_aton(str
, &tos
))
2822 nla_put_u8(msg
, IFLA_VXLAN_TOS
, tos
);
2825 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
2826 uint32_t ttl
= blobmsg_get_u32(cur
);
2827 if (ttl
< 1 || ttl
> 255) {
2832 nla_put_u8(msg
, IFLA_VXLAN_TTL
, ttl
);
2835 nla_nest_end(msg
, data
);
2836 nla_nest_end(msg
, linkinfo
);
2838 ret
= system_rtnl_call(msg
);
2840 D(SYSTEM
, "Error adding vxlan '%s': %d\n", name
, ret
);
2850 static int system_add_sit_tunnel(const char *name
, const unsigned int link
, struct blob_attr
**tb
)
2852 struct blob_attr
*cur
;
2855 if (system_add_proto_tunnel(name
, IPPROTO_IPV6
, link
, tb
) < 0)
2859 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2860 struct blob_attr
*tb_data
[__SIXRD_DATA_ATTR_MAX
];
2862 struct ip_tunnel_6rd p6
;
2864 blobmsg_parse(sixrd_data_attr_list
.params
, __SIXRD_DATA_ATTR_MAX
, tb_data
,
2865 blobmsg_data(cur
), blobmsg_len(cur
));
2867 memset(&p6
, 0, sizeof(p6
));
2869 if ((cur
= tb_data
[SIXRD_DATA_PREFIX
])) {
2870 if (!parse_ip_and_netmask(AF_INET6
, blobmsg_data(cur
),
2871 &p6
.prefix
, &mask
) || mask
> 128) {
2876 p6
.prefixlen
= mask
;
2879 if ((cur
= tb_data
[SIXRD_DATA_RELAY_PREFIX
])) {
2880 if (!parse_ip_and_netmask(AF_INET
, blobmsg_data(cur
),
2881 &p6
.relay_prefix
, &mask
) || mask
> 32) {
2886 p6
.relay_prefixlen
= mask
;
2889 if (tunnel_ioctl(name
, SIOCADD6RD
, &p6
) < 0) {
2899 __system_del_ip_tunnel(name
, tb
);
2903 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
, const unsigned int link
, struct blob_attr
**tb
)
2905 struct blob_attr
*cur
;
2907 struct ip_tunnel_parm p
= {
2916 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
]) &&
2917 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.saddr
) < 1)
2920 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
]) &&
2921 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.daddr
) < 1)
2924 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
2925 set_df
= blobmsg_get_bool(cur
);
2927 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2928 p
.iph
.ttl
= blobmsg_get_u32(cur
);
2930 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
2931 char *str
= blobmsg_get_string(cur
);
2932 if (strcmp(str
, "inherit")) {
2935 if (!system_tos_aton(str
, &uval
))
2943 p
.iph
.frag_off
= set_df
? htons(IP_DF
) : 0;
2944 /* ttl !=0 and nopmtudisc are incompatible */
2945 if (p
.iph
.ttl
&& p
.iph
.frag_off
== 0)
2948 strncpy(p
.name
, name
, sizeof(p
.name
));
2950 switch (p
.iph
.protocol
) {
2952 return tunnel_ioctl("tunl0", SIOCADDTUNNEL
, &p
);
2954 return tunnel_ioctl("sit0", SIOCADDTUNNEL
, &p
);
2961 static int __system_del_ip_tunnel(const char *name
, struct blob_attr
**tb
)
2963 struct blob_attr
*cur
;
2966 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
2968 str
= blobmsg_data(cur
);
2970 if (!strcmp(str
, "greip") || !strcmp(str
, "gretapip") ||
2971 !strcmp(str
, "greip6") || !strcmp(str
, "gretapip6") ||
2972 !strcmp(str
, "vtiip") || !strcmp(str
, "vtiip6") ||
2973 !strcmp(str
, "vxlan") || !strcmp(str
, "vxlan6"))
2974 return system_link_del(name
);
2976 return tunnel_ioctl(name
, SIOCDELTUNNEL
, NULL
);
2979 int system_del_ip_tunnel(const char *name
, struct blob_attr
*attr
)
2981 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
2983 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
2984 blob_data(attr
), blob_len(attr
));
2986 return __system_del_ip_tunnel(name
, tb
);
2989 int system_update_ipv6_mtu(struct device
*dev
, int mtu
)
2995 snprintf(buf
, sizeof(buf
), "/proc/sys/net/ipv6/conf/%s/mtu",
2998 fd
= open(buf
, O_RDWR
);
3003 ssize_t len
= read(fd
, buf
, sizeof(buf
) - 1);
3010 if (write(fd
, buf
, snprintf(buf
, sizeof(buf
), "%i", mtu
)) > 0)
3019 int system_add_ip_tunnel(const char *name
, struct blob_attr
*attr
)
3021 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
3022 struct blob_attr
*cur
;
3025 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
3026 blob_data(attr
), blob_len(attr
));
3028 __system_del_ip_tunnel(name
, tb
);
3030 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
3032 str
= blobmsg_data(cur
);
3034 unsigned int ttl
= 0;
3035 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
3036 ttl
= blobmsg_get_u32(cur
);
3041 unsigned int link
= 0;
3042 if ((cur
= tb
[TUNNEL_ATTR_LINK
])) {
3043 struct interface
*iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
3047 if (iface
->l3_dev
.dev
)
3048 link
= iface
->l3_dev
.dev
->ifindex
;
3051 if (!strcmp(str
, "sit"))
3052 return system_add_sit_tunnel(name
, link
, tb
);
3053 #ifdef IFLA_IPTUN_MAX
3054 else if (!strcmp(str
, "ipip6")) {
3055 return system_add_ip6_tunnel(name
, link
, tb
);
3056 } else if (!strcmp(str
, "greip")) {
3057 return system_add_gre_tunnel(name
, "gre", link
, tb
, false);
3058 } else if (!strcmp(str
, "gretapip")) {
3059 return system_add_gre_tunnel(name
, "gretap", link
, tb
, false);
3060 } else if (!strcmp(str
, "greip6")) {
3061 return system_add_gre_tunnel(name
, "ip6gre", link
, tb
, true);
3062 } else if (!strcmp(str
, "gretapip6")) {
3063 return system_add_gre_tunnel(name
, "ip6gretap", link
, tb
, true);
3065 } else if (!strcmp(str
, "vtiip")) {
3066 return system_add_vti_tunnel(name
, "vti", link
, tb
, false);
3067 } else if (!strcmp(str
, "vtiip6")) {
3068 return system_add_vti_tunnel(name
, "vti6", link
, tb
, true);
3070 #ifdef IFLA_VXLAN_MAX
3071 } else if(!strcmp(str
, "vxlan")) {
3072 return system_add_vxlan(name
, link
, tb
, false);
3073 } else if(!strcmp(str
, "vxlan6")) {
3074 return system_add_vxlan(name
, link
, tb
, true);
3077 } else if (!strcmp(str
, "ipip")) {
3078 return system_add_proto_tunnel(name
, IPPROTO_IPIP
, link
, tb
);