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_isolate_mode(struct device
*dev
, const char *val
)
351 system_set_dev_sysctl("/sys/class/net/%s/brport/isolate_mode", dev
->ifname
, val
);
354 static void system_bridge_set_multicast_router(struct device
*dev
, const char *val
, bool bridge
)
356 system_set_dev_sysctl(bridge
? "/sys/class/net/%s/bridge/multicast_router" :
357 "/sys/class/net/%s/brport/multicast_router",
361 static void system_bridge_set_robustness(struct device
*dev
, const char *val
)
363 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_startup_query_count",
365 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_last_member_count",
369 static void system_bridge_set_query_interval(struct device
*dev
, const char *val
)
371 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_query_interval",
375 static void system_bridge_set_query_response_interval(struct device
*dev
, const char *val
)
377 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_query_response_interval",
381 static void system_bridge_set_last_member_interval(struct device
*dev
, const char *val
)
383 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_last_member_interval",
387 static void system_bridge_set_membership_interval(struct device
*dev
, const char *val
)
389 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_membership_interval",
393 static void system_bridge_set_other_querier_timeout(struct device
*dev
, const char *val
)
395 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier_interval",
399 static void system_bridge_set_startup_query_interval(struct device
*dev
, const char *val
)
401 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_startup_query_interval",
405 static void system_bridge_set_learning(struct device
*dev
, const char *val
)
407 system_set_dev_sysctl("/sys/class/net/%s/brport/learning", dev
->ifname
, val
);
410 static void system_bridge_set_unicast_flood(struct device
*dev
, const char *val
)
412 system_set_dev_sysctl("/sys/class/net/%s/brport/unicast_flood", dev
->ifname
, val
);
415 static void system_set_sendredirects(struct device
*dev
, const char *val
)
417 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/send_redirects", dev
->ifname
, val
);
420 static int system_get_sysctl(const char *path
, char *buf
, const size_t buf_sz
)
422 int fd
= -1, ret
= -1;
424 fd
= open(path
, O_RDONLY
);
428 ssize_t len
= read(fd
, buf
, buf_sz
- 1);
442 system_get_dev_sysctl(const char *path
, const char *device
, char *buf
, const size_t buf_sz
)
444 snprintf(dev_buf
, sizeof(dev_buf
), path
, device
);
445 return system_get_sysctl(dev_buf
, buf
, buf_sz
);
448 static int system_get_disable_ipv6(struct device
*dev
, char *buf
, const size_t buf_sz
)
450 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6",
451 dev
->ifname
, buf
, buf_sz
);
454 static int system_get_rpfilter(struct device
*dev
, char *buf
, const size_t buf_sz
)
456 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/rp_filter",
457 dev
->ifname
, buf
, buf_sz
);
460 static int system_get_acceptlocal(struct device
*dev
, char *buf
, const size_t buf_sz
)
462 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/accept_local",
463 dev
->ifname
, buf
, buf_sz
);
466 static int system_get_igmpversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
468 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/force_igmp_version",
469 dev
->ifname
, buf
, buf_sz
);
472 static int system_get_mldversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
474 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/force_mld_version",
475 dev
->ifname
, buf
, buf_sz
);
478 static int system_get_neigh4reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
480 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/base_reachable_time_ms",
481 dev
->ifname
, buf
, buf_sz
);
484 static int system_get_neigh6reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
486 return system_get_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/base_reachable_time_ms",
487 dev
->ifname
, buf
, buf_sz
);
490 static int system_get_neigh4gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
492 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/gc_stale_time",
493 dev
->ifname
, buf
, buf_sz
);
496 static int system_get_neigh6gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
498 return system_get_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/gc_stale_time",
499 dev
->ifname
, buf
, buf_sz
);
502 static int system_get_neigh4locktime(struct device
*dev
, char *buf
, const size_t buf_sz
)
504 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/locktime",
505 dev
->ifname
, buf
, buf_sz
);
508 static int system_get_dadtransmits(struct device
*dev
, char *buf
, const size_t buf_sz
)
510 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/dad_transmits",
511 dev
->ifname
, buf
, buf_sz
);
514 static int system_get_sendredirects(struct device
*dev
, char *buf
, const size_t buf_sz
)
516 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/send_redirects",
517 dev
->ifname
, buf
, buf_sz
);
520 // Evaluate netlink messages
521 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
)
523 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
524 struct nlattr
*nla
[__IFLA_MAX
];
528 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
531 nlmsg_parse(nh
, sizeof(struct ifinfomsg
), nla
, __IFLA_MAX
- 1, NULL
);
532 if (!nla
[IFLA_IFNAME
])
535 struct device
*dev
= device_find(nla_data(nla
[IFLA_IFNAME
]));
539 if (!system_get_dev_sysctl("/sys/class/net/%s/carrier", dev
->ifname
, buf
, sizeof(buf
)))
540 link_state
= strtoul(buf
, NULL
, 0);
542 device_set_link(dev
, link_state
? true : false);
549 handle_hotplug_msg(char *data
, int size
)
551 const char *subsystem
= NULL
, *interface
= NULL
, *interface_old
= NULL
;
552 char *cur
, *end
, *sep
;
555 bool add
, move
= false;
557 if (!strncmp(data
, "add@", 4))
559 else if (!strncmp(data
, "remove@", 7))
561 else if (!strncmp(data
, "move@", 5)) {
568 skip
= strlen(data
) + 1;
571 for (cur
= data
+ skip
; cur
< end
; cur
+= skip
) {
572 skip
= strlen(cur
) + 1;
574 sep
= strchr(cur
, '=');
579 if (!strcmp(cur
, "INTERFACE"))
581 else if (!strcmp(cur
, "SUBSYSTEM")) {
583 if (strcmp(subsystem
, "net") != 0)
585 } else if (!strcmp(cur
, "DEVPATH_OLD")) {
586 interface_old
= strrchr(sep
+ 1, '/');
592 if (subsystem
&& interface
) {
593 if (move
&& interface_old
)
602 dev
= device_find(interface_old
);
606 if (dev
->type
!= &simple_device_type
)
609 device_set_present(dev
, false);
612 dev
= device_find(interface
);
616 if (dev
->type
!= &simple_device_type
)
619 if (add
&& system_if_force_external(dev
->ifname
))
622 device_set_present(dev
, add
);
626 handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
)
628 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
629 struct sockaddr_nl nla
;
630 unsigned char *buf
= NULL
;
633 while ((size
= nl_recv(ev
->sock
, &nla
, &buf
, NULL
)) > 0) {
635 handle_hotplug_msg((char *) buf
, size
);
641 static int system_rtnl_call(struct nl_msg
*msg
)
645 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
651 return nl_wait_for_ack(sock_rtnl
);
654 int system_bridge_delbr(struct device
*bridge
)
656 return ioctl(sock_ioctl
, SIOCBRDELBR
, bridge
->ifname
);
659 static int system_bridge_if(const char *bridge
, struct device
*dev
, int cmd
, void *data
)
663 memset(&ifr
, 0, sizeof(ifr
));
665 ifr
.ifr_ifindex
= dev
->ifindex
;
668 strncpy(ifr
.ifr_name
, bridge
, sizeof(ifr
.ifr_name
) - 1);
669 return ioctl(sock_ioctl
, cmd
, &ifr
);
672 static bool system_is_bridge(const char *name
, char *buf
, int buflen
)
676 snprintf(buf
, buflen
, "/sys/devices/virtual/net/%s/bridge", name
);
677 if (stat(buf
, &st
) < 0)
683 static char *system_get_bridge(const char *name
, char *buf
, int buflen
)
689 snprintf(buf
, buflen
, "/sys/devices/virtual/net/*/brif/%s/bridge", name
);
690 if (glob(buf
, GLOB_NOSORT
, NULL
, &gl
) < 0)
694 len
= readlink(gl
.gl_pathv
[0], buf
, buflen
);
702 path
= strrchr(buf
, '/');
710 system_bridge_set_wireless(struct device
*bridge
, struct device
*dev
)
712 bool mcast_to_ucast
= dev
->wireless_ap
;
715 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
&&
716 !bridge
->settings
.multicast_to_unicast
)
717 mcast_to_ucast
= false;
719 if (!mcast_to_ucast
|| dev
->wireless_isolate
)
722 system_bridge_set_multicast_to_unicast(dev
, mcast_to_ucast
? "1" : "0");
723 system_bridge_set_hairpin_mode(dev
, hairpin
? "1" : "0");
726 int system_bridge_addif(struct device
*bridge
, struct device
*dev
)
732 oldbr
= system_get_bridge(dev
->ifname
, dev_buf
, sizeof(dev_buf
));
733 if (!oldbr
|| strcmp(oldbr
, bridge
->ifname
) != 0)
734 ret
= system_bridge_if(bridge
->ifname
, dev
, SIOCBRADDIF
, NULL
);
737 system_bridge_set_wireless(bridge
, dev
);
739 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
740 snprintf(buf
, sizeof(buf
), "%u", dev
->settings
.multicast_router
);
741 system_bridge_set_multicast_router(dev
, buf
, false);
744 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
&&
745 dev
->settings
.multicast_fast_leave
)
746 system_bridge_set_multicast_fast_leave(dev
, "1");
748 if (dev
->settings
.flags
& DEV_OPT_LEARNING
&&
749 !dev
->settings
.learning
)
750 system_bridge_set_learning(dev
, "0");
752 if (dev
->settings
.flags
& DEV_OPT_UNICAST_FLOOD
&&
753 !dev
->settings
.unicast_flood
)
754 system_bridge_set_unicast_flood(dev
, "0");
756 if (dev
->settings
.flags
& DEV_OPT_ISOLATE
&&
757 dev
->settings
.isolate
)
758 system_bridge_set_isolate_mode(dev
, "1");
763 int system_bridge_delif(struct device
*bridge
, struct device
*dev
)
765 return system_bridge_if(bridge
->ifname
, dev
, SIOCBRDELIF
, NULL
);
768 int system_if_resolve(struct device
*dev
)
771 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
772 if (!ioctl(sock_ioctl
, SIOCGIFINDEX
, &ifr
))
773 return ifr
.ifr_ifindex
;
778 static int system_if_flags(const char *ifname
, unsigned add
, unsigned rem
)
782 memset(&ifr
, 0, sizeof(ifr
));
783 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
784 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) < 0)
787 ifr
.ifr_flags
|= add
;
788 ifr
.ifr_flags
&= ~rem
;
789 return ioctl(sock_ioctl
, SIOCSIFFLAGS
, &ifr
);
801 static bool check_ifaddr(struct nlmsghdr
*hdr
, int ifindex
)
803 struct ifaddrmsg
*ifa
= NLMSG_DATA(hdr
);
805 return ifa
->ifa_index
== ifindex
;
808 static bool check_route(struct nlmsghdr
*hdr
, int ifindex
)
810 struct rtmsg
*r
= NLMSG_DATA(hdr
);
811 struct nlattr
*tb
[__RTA_MAX
];
813 if (r
->rtm_protocol
== RTPROT_KERNEL
&&
814 r
->rtm_family
== AF_INET6
)
817 nlmsg_parse(hdr
, sizeof(struct rtmsg
), tb
, __RTA_MAX
- 1, NULL
);
821 return *(int *)RTA_DATA(tb
[RTA_OIF
]) == ifindex
;
824 static bool check_rule(struct nlmsghdr
*hdr
, int ifindex
)
829 static int cb_clear_event(struct nl_msg
*msg
, void *arg
)
831 struct clear_data
*clr
= arg
;
832 struct nlmsghdr
*hdr
= nlmsg_hdr(msg
);
833 bool (*cb
)(struct nlmsghdr
*, int ifindex
);
839 if (hdr
->nlmsg_type
!= RTM_NEWADDR
)
846 if (hdr
->nlmsg_type
!= RTM_NEWROUTE
)
853 if (hdr
->nlmsg_type
!= RTM_NEWRULE
)
862 if (!cb(hdr
, clr
->dev
? clr
->dev
->ifindex
: 0))
865 if (type
== RTM_DELRULE
)
866 D(SYSTEM
, "Remove a rule\n");
868 D(SYSTEM
, "Remove %s from device %s\n",
869 type
== RTM_DELADDR
? "an address" : "a route",
871 memcpy(nlmsg_hdr(clr
->msg
), hdr
, hdr
->nlmsg_len
);
872 hdr
= nlmsg_hdr(clr
->msg
);
873 hdr
->nlmsg_type
= type
;
874 hdr
->nlmsg_flags
= NLM_F_REQUEST
;
876 nl_socket_disable_auto_ack(sock_rtnl
);
877 nl_send_auto_complete(sock_rtnl
, clr
->msg
);
878 nl_socket_enable_auto_ack(sock_rtnl
);
884 cb_finish_event(struct nl_msg
*msg
, void *arg
)
892 error_handler(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
895 *pending
= err
->error
;
900 system_if_clear_entries(struct device
*dev
, int type
, int af
)
902 struct clear_data clr
;
903 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
906 .rtm_flags
= RTM_F_CLONED
,
908 int flags
= NLM_F_DUMP
;
917 clr
.size
= sizeof(struct rtgenmsg
);
920 clr
.size
= sizeof(struct rtmsg
);
929 clr
.msg
= nlmsg_alloc_simple(type
, flags
);
933 nlmsg_append(clr
.msg
, &rtm
, clr
.size
, 0);
934 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_clear_event
, &clr
);
935 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, cb_finish_event
, &pending
);
936 nl_cb_err(cb
, NL_CB_CUSTOM
, error_handler
, &pending
);
938 nl_send_auto_complete(sock_rtnl
, clr
.msg
);
940 nl_recvmsgs(sock_rtnl
, cb
);
948 * Clear bridge (membership) state and bring down device
950 void system_if_clear_state(struct device
*dev
)
952 static char buf
[256];
955 device_set_ifindex(dev
, system_if_resolve(dev
));
956 if (dev
->external
|| !dev
->ifindex
)
959 system_if_flags(dev
->ifname
, 0, IFF_UP
);
961 if (system_is_bridge(dev
->ifname
, buf
, sizeof(buf
))) {
962 D(SYSTEM
, "Delete existing bridge named '%s'\n", dev
->ifname
);
963 system_bridge_delbr(dev
);
967 bridge
= system_get_bridge(dev
->ifname
, buf
, sizeof(buf
));
969 D(SYSTEM
, "Remove device '%s' from bridge '%s'\n", dev
->ifname
, bridge
);
970 system_bridge_if(bridge
, dev
, SIOCBRDELIF
, NULL
);
973 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET
);
974 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET
);
975 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET6
);
976 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET6
);
977 system_set_disable_ipv6(dev
, "0");
980 static inline unsigned long
981 sec_to_jiffies(int val
)
983 return (unsigned long) val
* 100;
986 static void system_bridge_conf_multicast_deps(struct device
*bridge
,
987 struct bridge_config
*cfg
,
993 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
||
994 cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
||
995 cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
996 val
= cfg
->robustness
* cfg
->query_interval
+
997 cfg
->query_response_interval
;
999 snprintf(buf
, buf_len
, "%i", val
);
1000 system_bridge_set_membership_interval(bridge
, buf
);
1002 val
= cfg
->robustness
* cfg
->query_interval
+
1003 cfg
->query_response_interval
/ 2;
1005 snprintf(buf
, buf_len
, "%i", val
);
1006 system_bridge_set_other_querier_timeout(bridge
, buf
);
1009 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1010 val
= cfg
->query_interval
/ 4;
1012 snprintf(buf
, buf_len
, "%i", val
);
1013 system_bridge_set_startup_query_interval(bridge
, buf
);
1017 static void system_bridge_conf_multicast(struct device
*bridge
,
1018 struct bridge_config
*cfg
,
1022 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_snooping",
1023 bridge
->ifname
, cfg
->igmp_snoop
? "1" : "0");
1025 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier",
1026 bridge
->ifname
, cfg
->multicast_querier
? "1" : "0");
1028 snprintf(buf
, buf_len
, "%i", cfg
->hash_max
);
1029 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/hash_max",
1030 bridge
->ifname
, buf
);
1032 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
1033 snprintf(buf
, buf_len
, "%u", bridge
->settings
.multicast_router
);
1034 system_bridge_set_multicast_router(bridge
, buf
, true);
1037 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
) {
1038 snprintf(buf
, buf_len
, "%i", cfg
->robustness
);
1039 system_bridge_set_robustness(bridge
, buf
);
1042 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1043 snprintf(buf
, buf_len
, "%i", cfg
->query_interval
);
1044 system_bridge_set_query_interval(bridge
, buf
);
1047 if (cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
1048 snprintf(buf
, buf_len
, "%i", cfg
->query_response_interval
);
1049 system_bridge_set_query_response_interval(bridge
, buf
);
1052 if (cfg
->flags
& BRIDGE_OPT_LAST_MEMBER_INTERVAL
) {
1053 snprintf(buf
, buf_len
, "%i", cfg
->last_member_interval
);
1054 system_bridge_set_last_member_interval(bridge
, buf
);
1057 system_bridge_conf_multicast_deps(bridge
, cfg
, buf
, buf_len
);
1060 int system_bridge_addbr(struct device
*bridge
, struct bridge_config
*cfg
)
1063 unsigned long args
[4] = {};
1065 if (ioctl(sock_ioctl
, SIOCBRADDBR
, bridge
->ifname
) < 0)
1068 args
[0] = BRCTL_SET_BRIDGE_STP_STATE
;
1069 args
[1] = !!cfg
->stp
;
1070 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1072 args
[0] = BRCTL_SET_BRIDGE_FORWARD_DELAY
;
1073 args
[1] = sec_to_jiffies(cfg
->forward_delay
);
1074 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1076 system_bridge_conf_multicast(bridge
, cfg
, buf
, sizeof(buf
));
1078 args
[0] = BRCTL_SET_BRIDGE_PRIORITY
;
1079 args
[1] = cfg
->priority
;
1080 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1082 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
) {
1083 args
[0] = BRCTL_SET_AGEING_TIME
;
1084 args
[1] = sec_to_jiffies(cfg
->ageing_time
);
1085 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1088 if (cfg
->flags
& BRIDGE_OPT_HELLO_TIME
) {
1089 args
[0] = BRCTL_SET_BRIDGE_HELLO_TIME
;
1090 args
[1] = sec_to_jiffies(cfg
->hello_time
);
1091 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1094 if (cfg
->flags
& BRIDGE_OPT_MAX_AGE
) {
1095 args
[0] = BRCTL_SET_BRIDGE_MAX_AGE
;
1096 args
[1] = sec_to_jiffies(cfg
->max_age
);
1097 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1103 int system_macvlan_add(struct device
*macvlan
, struct device
*dev
, struct macvlan_config
*cfg
)
1106 struct nlattr
*linkinfo
, *data
;
1107 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
1109 static const struct {
1111 enum macvlan_mode val
;
1113 { "private", MACVLAN_MODE_PRIVATE
},
1114 { "vepa", MACVLAN_MODE_VEPA
},
1115 { "bridge", MACVLAN_MODE_BRIDGE
},
1116 { "passthru", MACVLAN_MODE_PASSTHRU
},
1119 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1124 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1126 if (cfg
->flags
& MACVLAN_OPT_MACADDR
)
1127 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1128 nla_put_string(msg
, IFLA_IFNAME
, macvlan
->ifname
);
1129 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1131 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1132 goto nla_put_failure
;
1134 nla_put_string(msg
, IFLA_INFO_KIND
, "macvlan");
1136 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1137 goto nla_put_failure
;
1140 for (i
= 0; i
< ARRAY_SIZE(modes
); i
++) {
1141 if (strcmp(cfg
->mode
, modes
[i
].name
) != 0)
1144 nla_put_u32(msg
, IFLA_MACVLAN_MODE
, modes
[i
].val
);
1149 nla_nest_end(msg
, data
);
1150 nla_nest_end(msg
, linkinfo
);
1152 rv
= system_rtnl_call(msg
);
1154 D(SYSTEM
, "Error adding macvlan '%s' over '%s': %d\n", macvlan
->ifname
, dev
->ifname
, rv
);
1163 static int system_link_del(const char *ifname
)
1166 struct ifinfomsg iim
= {
1167 .ifi_family
= AF_UNSPEC
,
1171 msg
= nlmsg_alloc_simple(RTM_DELLINK
, NLM_F_REQUEST
);
1176 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1177 nla_put_string(msg
, IFLA_IFNAME
, ifname
);
1178 return system_rtnl_call(msg
);
1181 int system_macvlan_del(struct device
*macvlan
)
1183 return system_link_del(macvlan
->ifname
);
1186 int system_veth_add(struct device
*veth
, struct veth_config
*cfg
)
1189 struct ifinfomsg empty_iim
= {};
1190 struct nlattr
*linkinfo
, *data
, *veth_info
;
1193 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1198 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1200 if (cfg
->flags
& VETH_OPT_MACADDR
)
1201 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1202 nla_put_string(msg
, IFLA_IFNAME
, veth
->ifname
);
1204 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1205 goto nla_put_failure
;
1207 nla_put_string(msg
, IFLA_INFO_KIND
, "veth");
1209 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1210 goto nla_put_failure
;
1212 if (!(veth_info
= nla_nest_start(msg
, VETH_INFO_PEER
)))
1213 goto nla_put_failure
;
1215 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1217 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1218 nla_put_string(msg
, IFLA_IFNAME
, cfg
->peer_name
);
1219 if (cfg
->flags
& VETH_OPT_PEER_MACADDR
)
1220 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->peer_macaddr
), cfg
->peer_macaddr
);
1222 nla_nest_end(msg
, veth_info
);
1223 nla_nest_end(msg
, data
);
1224 nla_nest_end(msg
, linkinfo
);
1226 rv
= system_rtnl_call(msg
);
1228 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1229 D(SYSTEM
, "Error adding veth '%s' with peer '%s': %d\n", veth
->ifname
, cfg
->peer_name
, rv
);
1231 D(SYSTEM
, "Error adding veth '%s': %d\n", veth
->ifname
, rv
);
1241 int system_veth_del(struct device
*veth
)
1243 return system_link_del(veth
->ifname
);
1246 static int system_vlan(struct device
*dev
, int id
)
1248 struct vlan_ioctl_args ifr
= {
1249 .cmd
= SET_VLAN_NAME_TYPE_CMD
,
1250 .u
.name_type
= VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
,
1253 if (ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
) < 0)
1257 ifr
.cmd
= DEL_VLAN_CMD
;
1260 ifr
.cmd
= ADD_VLAN_CMD
;
1263 strncpy(ifr
.device1
, dev
->ifname
, sizeof(ifr
.device1
));
1264 return ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
1267 int system_vlan_add(struct device
*dev
, int id
)
1269 return system_vlan(dev
, id
);
1272 int system_vlan_del(struct device
*dev
)
1274 return system_vlan(dev
, -1);
1277 int system_vlandev_add(struct device
*vlandev
, struct device
*dev
, struct vlandev_config
*cfg
)
1280 struct nlattr
*linkinfo
, *data
;
1281 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
};
1284 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1289 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1290 nla_put_string(msg
, IFLA_IFNAME
, vlandev
->ifname
);
1291 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1293 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1294 goto nla_put_failure
;
1296 nla_put_string(msg
, IFLA_INFO_KIND
, "vlan");
1298 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1299 goto nla_put_failure
;
1301 nla_put_u16(msg
, IFLA_VLAN_ID
, cfg
->vid
);
1303 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
1304 nla_put_u16(msg
, IFLA_VLAN_PROTOCOL
, htons(cfg
->proto
));
1306 if(cfg
->proto
== VLAN_PROTO_8021AD
)
1307 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
);
1310 nla_nest_end(msg
, data
);
1311 nla_nest_end(msg
, linkinfo
);
1313 rv
= system_rtnl_call(msg
);
1315 D(SYSTEM
, "Error adding vlandev '%s' over '%s': %d\n", vlandev
->ifname
, dev
->ifname
, rv
);
1324 int system_vlandev_del(struct device
*vlandev
)
1326 return system_link_del(vlandev
->ifname
);
1330 system_if_get_settings(struct device
*dev
, struct device_settings
*s
)
1335 memset(&ifr
, 0, sizeof(ifr
));
1336 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1338 if (ioctl(sock_ioctl
, SIOCGIFMTU
, &ifr
) == 0) {
1339 s
->mtu
= ifr
.ifr_mtu
;
1340 s
->flags
|= DEV_OPT_MTU
;
1343 s
->mtu6
= system_update_ipv6_mtu(dev
, 0);
1345 s
->flags
|= DEV_OPT_MTU6
;
1347 if (ioctl(sock_ioctl
, SIOCGIFTXQLEN
, &ifr
) == 0) {
1348 s
->txqueuelen
= ifr
.ifr_qlen
;
1349 s
->flags
|= DEV_OPT_TXQUEUELEN
;
1352 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0) {
1353 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
1354 s
->flags
|= DEV_OPT_MACADDR
;
1357 if (!system_get_disable_ipv6(dev
, buf
, sizeof(buf
))) {
1358 s
->ipv6
= !strtoul(buf
, NULL
, 0);
1359 s
->flags
|= DEV_OPT_IPV6
;
1362 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) == 0) {
1363 s
->promisc
= ifr
.ifr_flags
& IFF_PROMISC
;
1364 s
->flags
|= DEV_OPT_PROMISC
;
1366 s
->multicast
= ifr
.ifr_flags
& IFF_MULTICAST
;
1367 s
->flags
|= DEV_OPT_MULTICAST
;
1370 if (!system_get_rpfilter(dev
, buf
, sizeof(buf
))) {
1371 s
->rpfilter
= strtoul(buf
, NULL
, 0);
1372 s
->flags
|= DEV_OPT_RPFILTER
;
1375 if (!system_get_acceptlocal(dev
, buf
, sizeof(buf
))) {
1376 s
->acceptlocal
= strtoul(buf
, NULL
, 0);
1377 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
1380 if (!system_get_igmpversion(dev
, buf
, sizeof(buf
))) {
1381 s
->igmpversion
= strtoul(buf
, NULL
, 0);
1382 s
->flags
|= DEV_OPT_IGMPVERSION
;
1385 if (!system_get_mldversion(dev
, buf
, sizeof(buf
))) {
1386 s
->mldversion
= strtoul(buf
, NULL
, 0);
1387 s
->flags
|= DEV_OPT_MLDVERSION
;
1390 if (!system_get_neigh4reachabletime(dev
, buf
, sizeof(buf
))) {
1391 s
->neigh4reachabletime
= strtoul(buf
, NULL
, 0);
1392 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1395 if (!system_get_neigh6reachabletime(dev
, buf
, sizeof(buf
))) {
1396 s
->neigh6reachabletime
= strtoul(buf
, NULL
, 0);
1397 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1400 if (!system_get_neigh4locktime(dev
, buf
, sizeof(buf
))) {
1401 s
->neigh4locktime
= strtol(buf
, NULL
, 0);
1402 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
1405 if (!system_get_neigh4gcstaletime(dev
, buf
, sizeof(buf
))) {
1406 s
->neigh4gcstaletime
= strtoul(buf
, NULL
, 0);
1407 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1410 if (!system_get_neigh6gcstaletime(dev
, buf
, sizeof(buf
))) {
1411 s
->neigh6gcstaletime
= strtoul(buf
, NULL
, 0);
1412 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1415 if (!system_get_dadtransmits(dev
, buf
, sizeof(buf
))) {
1416 s
->dadtransmits
= strtoul(buf
, NULL
, 0);
1417 s
->flags
|= DEV_OPT_DADTRANSMITS
;
1420 if (!system_get_sendredirects(dev
, buf
, sizeof(buf
))) {
1421 s
->sendredirects
= strtoul(buf
, NULL
, 0);
1422 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
1427 system_if_apply_settings(struct device
*dev
, struct device_settings
*s
, unsigned int apply_mask
)
1432 memset(&ifr
, 0, sizeof(ifr
));
1433 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1434 if (s
->flags
& DEV_OPT_MTU
& apply_mask
) {
1435 ifr
.ifr_mtu
= s
->mtu
;
1436 if (ioctl(sock_ioctl
, SIOCSIFMTU
, &ifr
) < 0)
1437 s
->flags
&= ~DEV_OPT_MTU
;
1439 if (s
->flags
& DEV_OPT_MTU6
& apply_mask
) {
1440 system_update_ipv6_mtu(dev
, s
->mtu6
);
1442 if (s
->flags
& DEV_OPT_TXQUEUELEN
& apply_mask
) {
1443 ifr
.ifr_qlen
= s
->txqueuelen
;
1444 if (ioctl(sock_ioctl
, SIOCSIFTXQLEN
, &ifr
) < 0)
1445 s
->flags
&= ~DEV_OPT_TXQUEUELEN
;
1447 if ((s
->flags
& DEV_OPT_MACADDR
& apply_mask
) && !dev
->external
) {
1448 ifr
.ifr_hwaddr
.sa_family
= ARPHRD_ETHER
;
1449 memcpy(&ifr
.ifr_hwaddr
.sa_data
, s
->macaddr
, sizeof(s
->macaddr
));
1450 if (ioctl(sock_ioctl
, SIOCSIFHWADDR
, &ifr
) < 0)
1451 s
->flags
&= ~DEV_OPT_MACADDR
;
1453 if (s
->flags
& DEV_OPT_IPV6
& apply_mask
)
1454 system_set_disable_ipv6(dev
, s
->ipv6
? "0" : "1");
1455 if (s
->flags
& DEV_OPT_PROMISC
& apply_mask
) {
1456 if (system_if_flags(dev
->ifname
, s
->promisc
? IFF_PROMISC
: 0,
1457 !s
->promisc
? IFF_PROMISC
: 0) < 0)
1458 s
->flags
&= ~DEV_OPT_PROMISC
;
1460 if (s
->flags
& DEV_OPT_RPFILTER
& apply_mask
) {
1461 snprintf(buf
, sizeof(buf
), "%u", s
->rpfilter
);
1462 system_set_rpfilter(dev
, buf
);
1464 if (s
->flags
& DEV_OPT_ACCEPTLOCAL
& apply_mask
)
1465 system_set_acceptlocal(dev
, s
->acceptlocal
? "1" : "0");
1466 if (s
->flags
& DEV_OPT_IGMPVERSION
& apply_mask
) {
1467 snprintf(buf
, sizeof(buf
), "%u", s
->igmpversion
);
1468 system_set_igmpversion(dev
, buf
);
1470 if (s
->flags
& DEV_OPT_MLDVERSION
& apply_mask
) {
1471 snprintf(buf
, sizeof(buf
), "%u", s
->mldversion
);
1472 system_set_mldversion(dev
, buf
);
1474 if (s
->flags
& DEV_OPT_NEIGHREACHABLETIME
& apply_mask
) {
1475 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4reachabletime
);
1476 system_set_neigh4reachabletime(dev
, buf
);
1477 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6reachabletime
);
1478 system_set_neigh6reachabletime(dev
, buf
);
1480 if (s
->flags
& DEV_OPT_NEIGHLOCKTIME
& apply_mask
) {
1481 snprintf(buf
, sizeof(buf
), "%d", s
->neigh4locktime
);
1482 system_set_neigh4locktime(dev
, buf
);
1484 if (s
->flags
& DEV_OPT_NEIGHGCSTALETIME
& apply_mask
) {
1485 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4gcstaletime
);
1486 system_set_neigh4gcstaletime(dev
, buf
);
1487 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6gcstaletime
);
1488 system_set_neigh6gcstaletime(dev
, buf
);
1490 if (s
->flags
& DEV_OPT_DADTRANSMITS
& apply_mask
) {
1491 snprintf(buf
, sizeof(buf
), "%u", s
->dadtransmits
);
1492 system_set_dadtransmits(dev
, buf
);
1494 if (s
->flags
& DEV_OPT_MULTICAST
& apply_mask
) {
1495 if (system_if_flags(dev
->ifname
, s
->multicast
? IFF_MULTICAST
: 0,
1496 !s
->multicast
? IFF_MULTICAST
: 0) < 0)
1497 s
->flags
&= ~DEV_OPT_MULTICAST
;
1499 if (s
->flags
& DEV_OPT_SENDREDIRECTS
& apply_mask
)
1500 system_set_sendredirects(dev
, s
->sendredirects
? "1" : "0");
1503 int system_if_up(struct device
*dev
)
1505 system_if_get_settings(dev
, &dev
->orig_settings
);
1506 /* Only keep orig settings based on what needs to be set */
1507 dev
->orig_settings
.valid_flags
= dev
->orig_settings
.flags
;
1508 dev
->orig_settings
.flags
&= dev
->settings
.flags
;
1509 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
1510 return system_if_flags(dev
->ifname
, IFF_UP
, 0);
1513 int system_if_down(struct device
*dev
)
1515 int ret
= system_if_flags(dev
->ifname
, 0, IFF_UP
);
1516 system_if_apply_settings(dev
, &dev
->orig_settings
, dev
->orig_settings
.flags
);
1520 struct if_check_data
{
1526 #ifndef IFF_LOWER_UP
1527 #define IFF_LOWER_UP 0x10000
1530 static int cb_if_check_valid(struct nl_msg
*msg
, void *arg
)
1532 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
1533 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
1534 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1536 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
1539 device_set_present(chk
->dev
, ifi
->ifi_index
> 0 ? true : false);
1540 device_set_link(chk
->dev
, ifi
->ifi_flags
& IFF_LOWER_UP
? true : false);
1545 static int cb_if_check_ack(struct nl_msg
*msg
, void *arg
)
1547 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1552 static int cb_if_check_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1554 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1556 device_set_present(chk
->dev
, false);
1557 device_set_link(chk
->dev
, false);
1558 chk
->pending
= err
->error
;
1563 int system_if_check(struct device
*dev
)
1565 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1567 struct ifinfomsg ifi
= {
1568 .ifi_family
= AF_UNSPEC
,
1571 struct if_check_data chk
= {
1580 msg
= nlmsg_alloc_simple(RTM_GETLINK
, 0);
1584 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
1585 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
1588 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_check_valid
, &chk
);
1589 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_check_ack
, &chk
);
1590 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_check_error
, &chk
);
1592 nl_send_auto_complete(sock_rtnl
, msg
);
1593 while (chk
.pending
> 0)
1594 nl_recvmsgs(sock_rtnl
, cb
);
1606 system_if_get_parent(struct device
*dev
)
1608 char buf
[64], *devname
;
1609 int ifindex
, iflink
, len
;
1612 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/iflink", dev
->ifname
);
1613 f
= fopen(buf
, "r");
1617 len
= fread(buf
, 1, sizeof(buf
) - 1, f
);
1624 iflink
= strtoul(buf
, NULL
, 0);
1625 ifindex
= system_if_resolve(dev
);
1626 if (!iflink
|| iflink
== ifindex
)
1629 devname
= if_indextoname(iflink
, buf
);
1633 return device_get(devname
, true);
1637 read_string_file(int dir_fd
, const char *file
, char *buf
, int len
)
1643 fd
= openat(dir_fd
, file
, O_RDONLY
);
1648 len
= read(fd
, buf
, len
- 1);
1652 } else if (len
> 0) {
1655 c
= strchr(buf
, '\n');
1668 read_uint64_file(int dir_fd
, const char *file
, uint64_t *val
)
1673 ret
= read_string_file(dir_fd
, file
, buf
, sizeof(buf
));
1675 *val
= strtoull(buf
, NULL
, 0);
1680 /* Assume advertised flags == supported flags */
1681 static const struct {
1684 } ethtool_link_modes
[] = {
1685 { ADVERTISED_10baseT_Half
, "10H" },
1686 { ADVERTISED_10baseT_Full
, "10F" },
1687 { ADVERTISED_100baseT_Half
, "100H" },
1688 { ADVERTISED_100baseT_Full
, "100F" },
1689 { ADVERTISED_1000baseT_Half
, "1000H" },
1690 { ADVERTISED_1000baseT_Full
, "1000F" },
1693 static void system_add_link_modes(struct blob_buf
*b
, __u32 mask
)
1696 for (i
= 0; i
< ARRAY_SIZE(ethtool_link_modes
); i
++) {
1697 if (mask
& ethtool_link_modes
[i
].mask
)
1698 blobmsg_add_string(b
, NULL
, ethtool_link_modes
[i
].name
);
1703 system_if_force_external(const char *ifname
)
1708 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/phy80211", ifname
);
1709 return stat(buf
, &s
) == 0;
1713 system_if_dump_info(struct device
*dev
, struct blob_buf
*b
)
1715 struct ethtool_cmd ecmd
;
1720 memset(&ecmd
, 0, sizeof(ecmd
));
1721 memset(&ifr
, 0, sizeof(ifr
));
1722 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1723 ifr
.ifr_data
= (caddr_t
) &ecmd
;
1724 ecmd
.cmd
= ETHTOOL_GSET
;
1726 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) == 0) {
1727 c
= blobmsg_open_array(b
, "link-advertising");
1728 system_add_link_modes(b
, ecmd
.advertising
);
1729 blobmsg_close_array(b
, c
);
1731 c
= blobmsg_open_array(b
, "link-supported");
1732 system_add_link_modes(b
, ecmd
.supported
);
1733 blobmsg_close_array(b
, c
);
1735 s
= blobmsg_alloc_string_buffer(b
, "speed", 8);
1736 snprintf(s
, 8, "%d%c", ethtool_cmd_speed(&ecmd
),
1737 ecmd
.duplex
== DUPLEX_HALF
? 'H' : 'F');
1738 blobmsg_add_string_buffer(b
);
1745 system_if_dump_stats(struct device
*dev
, struct blob_buf
*b
)
1747 const char *const counters
[] = {
1748 "collisions", "rx_frame_errors", "tx_compressed",
1749 "multicast", "rx_length_errors", "tx_dropped",
1750 "rx_bytes", "rx_missed_errors", "tx_errors",
1751 "rx_compressed", "rx_over_errors", "tx_fifo_errors",
1752 "rx_crc_errors", "rx_packets", "tx_heartbeat_errors",
1753 "rx_dropped", "tx_aborted_errors", "tx_packets",
1754 "rx_errors", "tx_bytes", "tx_window_errors",
1755 "rx_fifo_errors", "tx_carrier_errors",
1762 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/statistics", dev
->ifname
);
1763 stats_dir
= open(buf
, O_DIRECTORY
);
1767 for (i
= 0; i
< ARRAY_SIZE(counters
); i
++)
1768 if (read_uint64_file(stats_dir
, counters
[i
], &val
))
1769 blobmsg_add_u64(b
, counters
[i
], val
);
1775 static int system_addr(struct device
*dev
, struct device_addr
*addr
, int cmd
)
1777 bool v4
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
);
1778 int alen
= v4
? 4 : 16;
1779 unsigned int flags
= 0;
1780 struct ifaddrmsg ifa
= {
1781 .ifa_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
1782 .ifa_prefixlen
= addr
->mask
,
1783 .ifa_index
= dev
->ifindex
,
1787 if (cmd
== RTM_NEWADDR
)
1788 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
1790 msg
= nlmsg_alloc_simple(cmd
, flags
);
1794 nlmsg_append(msg
, &ifa
, sizeof(ifa
), 0);
1795 nla_put(msg
, IFA_LOCAL
, alen
, &addr
->addr
);
1797 if (addr
->broadcast
)
1798 nla_put_u32(msg
, IFA_BROADCAST
, addr
->broadcast
);
1799 if (addr
->point_to_point
)
1800 nla_put_u32(msg
, IFA_ADDRESS
, addr
->point_to_point
);
1802 time_t now
= system_get_rtime();
1803 struct ifa_cacheinfo cinfo
= {0xffffffffU
, 0xffffffffU
, 0, 0};
1805 if (addr
->preferred_until
) {
1806 int64_t preferred
= addr
->preferred_until
- now
;
1809 else if (preferred
> UINT32_MAX
)
1810 preferred
= UINT32_MAX
;
1812 cinfo
.ifa_prefered
= preferred
;
1815 if (addr
->valid_until
) {
1816 int64_t valid
= addr
->valid_until
- now
;
1821 else if (valid
> UINT32_MAX
)
1824 cinfo
.ifa_valid
= valid
;
1827 nla_put(msg
, IFA_CACHEINFO
, sizeof(cinfo
), &cinfo
);
1829 if (cmd
== RTM_NEWADDR
&& (addr
->flags
& DEVADDR_OFFLINK
))
1830 nla_put_u32(msg
, IFA_FLAGS
, IFA_F_NOPREFIXROUTE
);
1833 return system_rtnl_call(msg
);
1836 int system_add_address(struct device
*dev
, struct device_addr
*addr
)
1838 return system_addr(dev
, addr
, RTM_NEWADDR
);
1841 int system_del_address(struct device
*dev
, struct device_addr
*addr
)
1843 return system_addr(dev
, addr
, RTM_DELADDR
);
1846 static int system_rt(struct device
*dev
, struct device_route
*route
, int cmd
)
1848 int alen
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
1850 unsigned int flags
= 0;
1853 have_gw
= !!route
->nexthop
.in
.s_addr
;
1855 have_gw
= route
->nexthop
.in6
.s6_addr32
[0] ||
1856 route
->nexthop
.in6
.s6_addr32
[1] ||
1857 route
->nexthop
.in6
.s6_addr32
[2] ||
1858 route
->nexthop
.in6
.s6_addr32
[3];
1860 unsigned int table
= (route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))
1861 ? route
->table
: RT_TABLE_MAIN
;
1863 struct rtmsg rtm
= {
1864 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
1865 .rtm_dst_len
= route
->mask
,
1866 .rtm_src_len
= route
->sourcemask
,
1867 .rtm_table
= (table
< 256) ? table
: RT_TABLE_UNSPEC
,
1868 .rtm_protocol
= (route
->flags
& DEVROUTE_PROTO
) ? route
->proto
: RTPROT_STATIC
,
1869 .rtm_scope
= RT_SCOPE_NOWHERE
,
1870 .rtm_type
= (cmd
== RTM_DELROUTE
) ? 0: RTN_UNICAST
,
1871 .rtm_flags
= (route
->flags
& DEVROUTE_ONLINK
) ? RTNH_F_ONLINK
: 0,
1875 if (cmd
== RTM_NEWROUTE
) {
1876 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
1878 if (!dev
) { // Add null-route
1879 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
1880 rtm
.rtm_type
= RTN_UNREACHABLE
;
1883 rtm
.rtm_scope
= (have_gw
) ? RT_SCOPE_UNIVERSE
: RT_SCOPE_LINK
;
1886 if (route
->flags
& DEVROUTE_TYPE
) {
1887 rtm
.rtm_type
= route
->type
;
1888 if (!(route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))) {
1889 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_BROADCAST
||
1890 rtm
.rtm_type
== RTN_NAT
|| rtm
.rtm_type
== RTN_ANYCAST
)
1891 rtm
.rtm_table
= RT_TABLE_LOCAL
;
1894 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_NAT
) {
1895 rtm
.rtm_scope
= RT_SCOPE_HOST
;
1896 } else if (rtm
.rtm_type
== RTN_BROADCAST
|| rtm
.rtm_type
== RTN_MULTICAST
||
1897 rtm
.rtm_type
== RTN_ANYCAST
) {
1898 rtm
.rtm_scope
= RT_SCOPE_LINK
;
1899 } else if (rtm
.rtm_type
== RTN_BLACKHOLE
|| rtm
.rtm_type
== RTN_UNREACHABLE
||
1900 rtm
.rtm_type
== RTN_PROHIBIT
|| rtm
.rtm_type
== RTN_FAILED_POLICY
||
1901 rtm
.rtm_type
== RTN_THROW
) {
1902 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
1907 msg
= nlmsg_alloc_simple(cmd
, flags
);
1911 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
1914 nla_put(msg
, RTA_DST
, alen
, &route
->addr
);
1916 if (route
->sourcemask
) {
1917 if (rtm
.rtm_family
== AF_INET
)
1918 nla_put(msg
, RTA_PREFSRC
, alen
, &route
->source
);
1920 nla_put(msg
, RTA_SRC
, alen
, &route
->source
);
1923 if (route
->metric
> 0)
1924 nla_put_u32(msg
, RTA_PRIORITY
, route
->metric
);
1927 nla_put(msg
, RTA_GATEWAY
, alen
, &route
->nexthop
);
1930 nla_put_u32(msg
, RTA_OIF
, dev
->ifindex
);
1933 nla_put_u32(msg
, RTA_TABLE
, table
);
1935 if (route
->flags
& DEVROUTE_MTU
) {
1936 struct nlattr
*metrics
;
1938 if (!(metrics
= nla_nest_start(msg
, RTA_METRICS
)))
1939 goto nla_put_failure
;
1941 nla_put_u32(msg
, RTAX_MTU
, route
->mtu
);
1943 nla_nest_end(msg
, metrics
);
1946 return system_rtnl_call(msg
);
1953 int system_add_route(struct device
*dev
, struct device_route
*route
)
1955 return system_rt(dev
, route
, RTM_NEWROUTE
);
1958 int system_del_route(struct device
*dev
, struct device_route
*route
)
1960 return system_rt(dev
, route
, RTM_DELROUTE
);
1963 int system_flush_routes(void)
1965 const char *names
[] = {
1966 "/proc/sys/net/ipv4/route/flush",
1967 "/proc/sys/net/ipv6/route/flush"
1971 for (i
= 0; i
< ARRAY_SIZE(names
); i
++) {
1972 fd
= open(names
[i
], O_WRONLY
);
1976 if (write(fd
, "-1", 2)) {}
1982 bool system_resolve_rt_type(const char *type
, unsigned int *id
)
1984 return system_rtn_aton(type
, id
);
1987 bool system_resolve_rt_proto(const char *type
, unsigned int *id
)
1991 unsigned int n
, proto
= 256;
1992 n
= strtoul(type
, &e
, 0);
1993 if (!*e
&& e
!= type
)
1995 else if (!strcmp(type
, "unspec"))
1996 proto
= RTPROT_UNSPEC
;
1997 else if (!strcmp(type
, "kernel"))
1998 proto
= RTPROT_KERNEL
;
1999 else if (!strcmp(type
, "boot"))
2000 proto
= RTPROT_BOOT
;
2001 else if (!strcmp(type
, "static"))
2002 proto
= RTPROT_STATIC
;
2003 else if ((f
= fopen("/etc/iproute2/rt_protos", "r")) != NULL
) {
2004 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
) {
2005 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2008 n
= strtoul(e
, NULL
, 10);
2009 e
= strtok(NULL
, " \t\n");
2011 if (e
&& !strcmp(e
, type
)) {
2026 bool system_resolve_rt_table(const char *name
, unsigned int *id
)
2030 unsigned int n
, table
= RT_TABLE_UNSPEC
;
2032 /* first try to parse table as number */
2033 if ((n
= strtoul(name
, &e
, 0)) > 0 && !*e
)
2036 /* handle well known aliases */
2037 else if (!strcmp(name
, "default"))
2038 table
= RT_TABLE_DEFAULT
;
2039 else if (!strcmp(name
, "main"))
2040 table
= RT_TABLE_MAIN
;
2041 else if (!strcmp(name
, "local"))
2042 table
= RT_TABLE_LOCAL
;
2044 /* try to look up name in /etc/iproute2/rt_tables */
2045 else if ((f
= fopen("/etc/iproute2/rt_tables", "r")) != NULL
)
2047 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
)
2049 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2052 n
= strtoul(e
, NULL
, 10);
2053 e
= strtok(NULL
, " \t\n");
2055 if (e
&& !strcmp(e
, name
))
2065 if (table
== RT_TABLE_UNSPEC
)
2072 bool system_is_default_rt_table(unsigned int id
)
2074 return (id
== RT_TABLE_MAIN
);
2077 bool system_resolve_rpfilter(const char *filter
, unsigned int *id
)
2082 if (!strcmp(filter
, "strict"))
2084 else if (!strcmp(filter
, "loose"))
2087 n
= strtoul(filter
, &e
, 0);
2088 if (*e
|| e
== filter
|| n
> 2)
2096 static int system_iprule(struct iprule
*rule
, int cmd
)
2098 int alen
= ((rule
->flags
& IPRULE_FAMILY
) == IPRULE_INET4
) ? 4 : 16;
2101 struct rtmsg rtm
= {
2102 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2103 .rtm_protocol
= RTPROT_STATIC
,
2104 .rtm_scope
= RT_SCOPE_UNIVERSE
,
2105 .rtm_table
= RT_TABLE_UNSPEC
,
2106 .rtm_type
= RTN_UNSPEC
,
2110 if (cmd
== RTM_NEWRULE
)
2111 rtm
.rtm_type
= RTN_UNICAST
;
2114 rtm
.rtm_flags
|= FIB_RULE_INVERT
;
2116 if (rule
->flags
& IPRULE_SRC
)
2117 rtm
.rtm_src_len
= rule
->src_mask
;
2119 if (rule
->flags
& IPRULE_DEST
)
2120 rtm
.rtm_dst_len
= rule
->dest_mask
;
2122 if (rule
->flags
& IPRULE_TOS
)
2123 rtm
.rtm_tos
= rule
->tos
;
2125 if (rule
->flags
& IPRULE_LOOKUP
) {
2126 if (rule
->lookup
< 256)
2127 rtm
.rtm_table
= rule
->lookup
;
2130 if (rule
->flags
& IPRULE_ACTION
)
2131 rtm
.rtm_type
= rule
->action
;
2132 else if (rule
->flags
& IPRULE_GOTO
)
2133 rtm
.rtm_type
= FR_ACT_GOTO
;
2134 else if (!(rule
->flags
& (IPRULE_LOOKUP
| IPRULE_ACTION
| IPRULE_GOTO
)))
2135 rtm
.rtm_type
= FR_ACT_NOP
;
2137 msg
= nlmsg_alloc_simple(cmd
, NLM_F_REQUEST
);
2142 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
2144 if (rule
->flags
& IPRULE_IN
)
2145 nla_put(msg
, FRA_IFNAME
, strlen(rule
->in_dev
) + 1, rule
->in_dev
);
2147 if (rule
->flags
& IPRULE_OUT
)
2148 nla_put(msg
, FRA_OIFNAME
, strlen(rule
->out_dev
) + 1, rule
->out_dev
);
2150 if (rule
->flags
& IPRULE_SRC
)
2151 nla_put(msg
, FRA_SRC
, alen
, &rule
->src_addr
);
2153 if (rule
->flags
& IPRULE_DEST
)
2154 nla_put(msg
, FRA_DST
, alen
, &rule
->dest_addr
);
2156 if (rule
->flags
& IPRULE_PRIORITY
)
2157 nla_put_u32(msg
, FRA_PRIORITY
, rule
->priority
);
2158 else if (cmd
== RTM_NEWRULE
)
2159 nla_put_u32(msg
, FRA_PRIORITY
, rule
->order
);
2161 if (rule
->flags
& IPRULE_FWMARK
)
2162 nla_put_u32(msg
, FRA_FWMARK
, rule
->fwmark
);
2164 if (rule
->flags
& IPRULE_FWMASK
)
2165 nla_put_u32(msg
, FRA_FWMASK
, rule
->fwmask
);
2167 if (rule
->flags
& IPRULE_LOOKUP
) {
2168 if (rule
->lookup
>= 256)
2169 nla_put_u32(msg
, FRA_TABLE
, rule
->lookup
);
2172 if (rule
->flags
& IPRULE_SUP_PREFIXLEN
)
2173 nla_put_u32(msg
, FRA_SUPPRESS_PREFIXLEN
, rule
->sup_prefixlen
);
2175 if (rule
->flags
& IPRULE_GOTO
)
2176 nla_put_u32(msg
, FRA_GOTO
, rule
->gotoid
);
2178 return system_rtnl_call(msg
);
2181 int system_add_iprule(struct iprule
*rule
)
2183 return system_iprule(rule
, RTM_NEWRULE
);
2186 int system_del_iprule(struct iprule
*rule
)
2188 return system_iprule(rule
, RTM_DELRULE
);
2191 int system_flush_iprules(void)
2196 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET
);
2197 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET6
);
2199 memset(&rule
, 0, sizeof(rule
));
2202 rule
.flags
= IPRULE_INET4
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
2205 rule
.lookup
= RT_TABLE_LOCAL
;
2206 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2208 rule
.priority
= 32766;
2209 rule
.lookup
= RT_TABLE_MAIN
;
2210 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2212 rule
.priority
= 32767;
2213 rule
.lookup
= RT_TABLE_DEFAULT
;
2214 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2217 rule
.flags
= IPRULE_INET6
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
2220 rule
.lookup
= RT_TABLE_LOCAL
;
2221 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2223 rule
.priority
= 32766;
2224 rule
.lookup
= RT_TABLE_MAIN
;
2225 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2230 bool system_resolve_iprule_action(const char *action
, unsigned int *id
)
2232 return system_rtn_aton(action
, id
);
2235 time_t system_get_rtime(void)
2240 if (syscall(__NR_clock_gettime
, CLOCK_MONOTONIC
, &ts
) == 0)
2243 if (gettimeofday(&tv
, NULL
) == 0)
2250 #define IP_DF 0x4000
2253 static int tunnel_ioctl(const char *name
, int cmd
, void *p
)
2257 memset(&ifr
, 0, sizeof(ifr
));
2258 strncpy(ifr
.ifr_name
, name
, sizeof(ifr
.ifr_name
) - 1);
2259 ifr
.ifr_ifru
.ifru_data
= p
;
2260 return ioctl(sock_ioctl
, cmd
, &ifr
);
2263 #ifdef IFLA_IPTUN_MAX
2264 static int system_add_ip6_tunnel(const char *name
, const unsigned int link
,
2265 struct blob_attr
**tb
)
2267 struct nl_msg
*nlm
= nlmsg_alloc_simple(RTM_NEWLINK
,
2268 NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2269 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
};
2270 struct blob_attr
*cur
;
2271 int ret
= 0, ttl
= 0;
2276 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2277 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2280 nla_put_u32(nlm
, IFLA_LINK
, link
);
2282 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2288 nla_put_string(nlm
, IFLA_INFO_KIND
, "ip6tnl");
2289 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2296 nla_put_u32(nlm
, IFLA_IPTUN_LINK
, link
);
2298 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2299 ttl
= blobmsg_get_u32(cur
);
2301 nla_put_u8(nlm
, IFLA_IPTUN_PROTO
, IPPROTO_IPIP
);
2302 nla_put_u8(nlm
, IFLA_IPTUN_TTL
, (ttl
) ? ttl
: 64);
2303 nla_put_u8(nlm
, IFLA_IPTUN_ENCAP_LIMIT
, 4);
2305 struct in6_addr in6buf
;
2306 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2307 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2311 nla_put(nlm
, IFLA_IPTUN_LOCAL
, sizeof(in6buf
), &in6buf
);
2314 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2315 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2319 nla_put(nlm
, IFLA_IPTUN_REMOTE
, sizeof(in6buf
), &in6buf
);
2322 #ifdef IFLA_IPTUN_FMR_MAX
2323 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2324 struct blob_attr
*dcur
;
2325 unsigned drem
, fmrcnt
= 0;
2326 struct nlattr
*fmrs
= nla_nest_start(nlm
, IFLA_IPTUN_FMRS
);
2333 blobmsg_for_each_attr(dcur
, cur
, drem
) {
2334 if (blobmsg_type(dcur
) != BLOBMSG_TYPE_ARRAY
||
2335 strcmp(blobmsg_name(dcur
), "fmrs") ||
2336 blobmsg_check_array(dcur
, BLOBMSG_TYPE_UNSPEC
) <= 0)
2339 struct blob_attr
*rcur
;
2341 blobmsg_for_each_attr(rcur
, dcur
, rrem
) {
2342 struct blob_attr
*tb_fmr
[__FMR_DATA_ATTR_MAX
], *tb_cur
;
2343 struct in6_addr ip6prefix
;
2344 struct in_addr ip4prefix
;
2345 unsigned ip4len
, ip6len
, ealen
, offset
;
2347 blobmsg_parse(fmr_data_attr_list
.params
, __FMR_DATA_ATTR_MAX
, tb_fmr
,
2348 blobmsg_data(rcur
), blobmsg_len(rcur
));
2350 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX6
]) ||
2351 !parse_ip_and_netmask(AF_INET6
,
2352 blobmsg_data(tb_cur
), &ip6prefix
,
2358 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX4
]) ||
2359 !parse_ip_and_netmask(AF_INET
,
2360 blobmsg_data(tb_cur
), &ip4prefix
,
2366 if (!(tb_cur
= tb_fmr
[FMR_DATA_EALEN
])) {
2370 ealen
= blobmsg_get_u32(tb_cur
);
2372 if (!(tb_cur
= tb_fmr
[FMR_DATA_OFFSET
])) {
2376 offset
= blobmsg_get_u32(tb_cur
);
2378 struct nlattr
*rule
= nla_nest_start(nlm
, ++fmrcnt
);
2384 nla_put(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX
, sizeof(ip6prefix
), &ip6prefix
);
2385 nla_put(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX
, sizeof(ip4prefix
), &ip4prefix
);
2386 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX_LEN
, ip6len
);
2387 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX_LEN
, ip4len
);
2388 nla_put_u8(nlm
, IFLA_IPTUN_FMR_EA_LEN
, ealen
);
2389 nla_put_u8(nlm
, IFLA_IPTUN_FMR_OFFSET
, offset
);
2391 nla_nest_end(nlm
, rule
);
2394 nla_nest_end(nlm
, fmrs
);
2398 nla_nest_end(nlm
, infodata
);
2399 nla_nest_end(nlm
, linkinfo
);
2401 return system_rtnl_call(nlm
);
2409 #ifdef IFLA_IPTUN_MAX
2410 #define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
2411 static int system_add_gre_tunnel(const char *name
, const char *kind
,
2412 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
2415 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
2416 struct blob_attr
*cur
;
2417 uint32_t ikey
= 0, okey
= 0, flags
= 0, flowinfo
= 0;
2418 uint16_t iflags
= 0, oflags
= 0;
2420 int ret
= 0, ttl
= 0;
2422 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2426 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2427 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2429 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2435 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
2436 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2443 nla_put_u32(nlm
, IFLA_GRE_LINK
, link
);
2445 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2446 ttl
= blobmsg_get_u32(cur
);
2448 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
2449 char *str
= blobmsg_get_string(cur
);
2450 if (strcmp(str
, "inherit")) {
2453 if (!system_tos_aton(str
, &uval
)) {
2459 flowinfo
|= htonl(uval
<< 20) & IP6_FLOWINFO_TCLASS
;
2464 flags
|= IP6_TNL_F_USE_ORIG_TCLASS
;
2470 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2471 struct blob_attr
*tb_data
[__GRE_DATA_ATTR_MAX
];
2473 blobmsg_parse(gre_data_attr_list
.params
, __GRE_DATA_ATTR_MAX
, tb_data
,
2474 blobmsg_data(cur
), blobmsg_len(cur
));
2476 if ((cur
= tb_data
[GRE_DATA_IKEY
])) {
2477 if ((ikey
= blobmsg_get_u32(cur
)))
2481 if ((cur
= tb_data
[GRE_DATA_OKEY
])) {
2482 if ((okey
= blobmsg_get_u32(cur
)))
2486 if ((cur
= tb_data
[GRE_DATA_ICSUM
])) {
2487 if (blobmsg_get_bool(cur
))
2491 if ((cur
= tb_data
[GRE_DATA_OCSUM
])) {
2492 if (blobmsg_get_bool(cur
))
2496 if ((cur
= tb_data
[GRE_DATA_ISEQNO
])) {
2497 if (blobmsg_get_bool(cur
))
2501 if ((cur
= tb
[GRE_DATA_OSEQNO
])) {
2502 if (blobmsg_get_bool(cur
))
2508 struct in6_addr in6buf
;
2509 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2510 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2514 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(in6buf
), &in6buf
);
2517 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2518 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2522 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(in6buf
), &in6buf
);
2524 nla_put_u8(nlm
, IFLA_GRE_ENCAP_LIMIT
, 4);
2527 nla_put_u32(nlm
, IFLA_GRE_FLOWINFO
, flowinfo
);
2530 nla_put_u32(nlm
, IFLA_GRE_FLAGS
, flags
);
2535 struct in_addr inbuf
;
2538 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2539 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2543 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(inbuf
), &inbuf
);
2546 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2547 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2551 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(inbuf
), &inbuf
);
2553 if (IN_MULTICAST(ntohl(inbuf
.s_addr
))) {
2555 okey
= inbuf
.s_addr
;
2560 ikey
= inbuf
.s_addr
;
2566 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
2567 set_df
= blobmsg_get_bool(cur
);
2570 /* ttl != 0 and nopmtudisc are incompatible */
2578 nla_put_u8(nlm
, IFLA_GRE_PMTUDISC
, set_df
? 1 : 0);
2580 nla_put_u8(nlm
, IFLA_GRE_TOS
, tos
);
2584 nla_put_u8(nlm
, IFLA_GRE_TTL
, ttl
);
2587 nla_put_u16(nlm
, IFLA_GRE_OFLAGS
, oflags
);
2590 nla_put_u16(nlm
, IFLA_GRE_IFLAGS
, iflags
);
2593 nla_put_u32(nlm
, IFLA_GRE_OKEY
, htonl(okey
));
2596 nla_put_u32(nlm
, IFLA_GRE_IKEY
, htonl(ikey
));
2598 nla_nest_end(nlm
, infodata
);
2599 nla_nest_end(nlm
, linkinfo
);
2601 return system_rtnl_call(nlm
);
2610 static int system_add_vti_tunnel(const char *name
, const char *kind
,
2611 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
2614 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
2615 struct blob_attr
*cur
;
2618 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2622 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2623 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2625 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2631 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
2632 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2639 nla_put_u32(nlm
, IFLA_VTI_LINK
, link
);
2642 struct in6_addr in6buf
;
2643 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2644 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2648 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(in6buf
), &in6buf
);
2651 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2652 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2656 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(in6buf
), &in6buf
);
2660 struct in_addr inbuf
;
2662 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2663 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2667 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(inbuf
), &inbuf
);
2670 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2671 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2675 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(inbuf
), &inbuf
);
2680 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2681 struct blob_attr
*tb_data
[__VTI_DATA_ATTR_MAX
];
2682 uint32_t ikey
= 0, okey
= 0;
2684 blobmsg_parse(vti_data_attr_list
.params
, __VTI_DATA_ATTR_MAX
, tb_data
,
2685 blobmsg_data(cur
), blobmsg_len(cur
));
2687 if ((cur
= tb_data
[VTI_DATA_IKEY
])) {
2688 if ((ikey
= blobmsg_get_u32(cur
)))
2689 nla_put_u32(nlm
, IFLA_VTI_IKEY
, htonl(ikey
));
2692 if ((cur
= tb_data
[VTI_DATA_OKEY
])) {
2693 if ((okey
= blobmsg_get_u32(cur
)))
2694 nla_put_u32(nlm
, IFLA_VTI_OKEY
, htonl(okey
));
2698 nla_nest_end(nlm
, infodata
);
2699 nla_nest_end(nlm
, linkinfo
);
2701 return system_rtnl_call(nlm
);
2709 #ifdef IFLA_VXLAN_MAX
2710 static int system_add_vxlan(const char *name
, const unsigned int link
, struct blob_attr
**tb
, bool v6
)
2712 struct blob_attr
*tb_data
[__VXLAN_DATA_ATTR_MAX
];
2714 struct nlattr
*linkinfo
, *data
;
2715 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
2716 struct blob_attr
*cur
;
2719 if ((cur
= tb
[TUNNEL_ATTR_DATA
]))
2720 blobmsg_parse(vxlan_data_attr_list
.params
, __VXLAN_DATA_ATTR_MAX
, tb_data
,
2721 blobmsg_data(cur
), blobmsg_len(cur
));
2725 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
2730 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
2732 nla_put_string(msg
, IFLA_IFNAME
, name
);
2734 if ((cur
= tb_data
[VXLAN_DATA_ATTR_MACADDR
])) {
2735 struct ether_addr
*ea
= ether_aton(blobmsg_get_string(cur
));
2741 nla_put(msg
, IFLA_ADDRESS
, ETH_ALEN
, ea
);
2744 if ((cur
= tb
[TUNNEL_ATTR_MTU
])) {
2745 uint32_t mtu
= blobmsg_get_u32(cur
);
2746 nla_put_u32(msg
, IFLA_MTU
, mtu
);
2749 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
))) {
2754 nla_put_string(msg
, IFLA_INFO_KIND
, "vxlan");
2756 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
))) {
2762 nla_put_u32(msg
, IFLA_VXLAN_LINK
, link
);
2764 if ((cur
= tb_data
[VXLAN_DATA_ATTR_ID
])) {
2765 uint32_t id
= blobmsg_get_u32(cur
);
2766 if (id
>= (1u << 24) - 1) {
2771 nla_put_u32(msg
, IFLA_VXLAN_ID
, id
);
2775 struct in6_addr in6buf
;
2776 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2777 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2781 nla_put(msg
, IFLA_VXLAN_LOCAL6
, sizeof(in6buf
), &in6buf
);
2784 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2785 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2789 nla_put(msg
, IFLA_VXLAN_GROUP6
, sizeof(in6buf
), &in6buf
);
2792 struct in_addr inbuf
;
2794 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2795 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2799 nla_put(msg
, IFLA_VXLAN_LOCAL
, sizeof(inbuf
), &inbuf
);
2802 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2803 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2807 nla_put(msg
, IFLA_VXLAN_GROUP
, sizeof(inbuf
), &inbuf
);
2811 uint32_t port
= 4789;
2812 if ((cur
= tb_data
[VXLAN_DATA_ATTR_PORT
])) {
2813 port
= blobmsg_get_u32(cur
);
2814 if (port
< 1 || port
> 65535) {
2819 nla_put_u16(msg
, IFLA_VXLAN_PORT
, htons(port
));
2821 if ((cur
= tb_data
[VXLAN_DATA_ATTR_RXCSUM
])) {
2822 bool rxcsum
= blobmsg_get_bool(cur
);
2823 nla_put_u8(msg
, IFLA_VXLAN_UDP_ZERO_CSUM6_RX
, !rxcsum
);
2826 if ((cur
= tb_data
[VXLAN_DATA_ATTR_TXCSUM
])) {
2827 bool txcsum
= blobmsg_get_bool(cur
);
2828 nla_put_u8(msg
, IFLA_VXLAN_UDP_CSUM
, txcsum
);
2829 nla_put_u8(msg
, IFLA_VXLAN_UDP_ZERO_CSUM6_TX
, !txcsum
);
2832 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
2833 char *str
= blobmsg_get_string(cur
);
2836 if (strcmp(str
, "inherit")) {
2837 if (!system_tos_aton(str
, &tos
)) {
2843 nla_put_u8(msg
, IFLA_VXLAN_TOS
, tos
);
2846 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
2847 uint32_t ttl
= blobmsg_get_u32(cur
);
2848 if (ttl
< 1 || ttl
> 255) {
2853 nla_put_u8(msg
, IFLA_VXLAN_TTL
, ttl
);
2856 nla_nest_end(msg
, data
);
2857 nla_nest_end(msg
, linkinfo
);
2859 ret
= system_rtnl_call(msg
);
2861 D(SYSTEM
, "Error adding vxlan '%s': %d\n", name
, ret
);
2871 static int system_add_sit_tunnel(const char *name
, const unsigned int link
, struct blob_attr
**tb
)
2873 struct blob_attr
*cur
;
2876 if (system_add_proto_tunnel(name
, IPPROTO_IPV6
, link
, tb
) < 0)
2880 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2881 struct blob_attr
*tb_data
[__SIXRD_DATA_ATTR_MAX
];
2883 struct ip_tunnel_6rd p6
;
2885 blobmsg_parse(sixrd_data_attr_list
.params
, __SIXRD_DATA_ATTR_MAX
, tb_data
,
2886 blobmsg_data(cur
), blobmsg_len(cur
));
2888 memset(&p6
, 0, sizeof(p6
));
2890 if ((cur
= tb_data
[SIXRD_DATA_PREFIX
])) {
2891 if (!parse_ip_and_netmask(AF_INET6
, blobmsg_data(cur
),
2892 &p6
.prefix
, &mask
) || mask
> 128) {
2897 p6
.prefixlen
= mask
;
2900 if ((cur
= tb_data
[SIXRD_DATA_RELAY_PREFIX
])) {
2901 if (!parse_ip_and_netmask(AF_INET
, blobmsg_data(cur
),
2902 &p6
.relay_prefix
, &mask
) || mask
> 32) {
2907 p6
.relay_prefixlen
= mask
;
2910 if (tunnel_ioctl(name
, SIOCADD6RD
, &p6
) < 0) {
2920 __system_del_ip_tunnel(name
, tb
);
2924 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
, const unsigned int link
, struct blob_attr
**tb
)
2926 struct blob_attr
*cur
;
2928 struct ip_tunnel_parm p
= {
2937 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
]) &&
2938 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.saddr
) < 1)
2941 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
]) &&
2942 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.daddr
) < 1)
2945 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
2946 set_df
= blobmsg_get_bool(cur
);
2948 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2949 p
.iph
.ttl
= blobmsg_get_u32(cur
);
2951 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
2952 char *str
= blobmsg_get_string(cur
);
2953 if (strcmp(str
, "inherit")) {
2956 if (!system_tos_aton(str
, &uval
))
2964 p
.iph
.frag_off
= set_df
? htons(IP_DF
) : 0;
2965 /* ttl !=0 and nopmtudisc are incompatible */
2966 if (p
.iph
.ttl
&& p
.iph
.frag_off
== 0)
2969 strncpy(p
.name
, name
, sizeof(p
.name
) - 1);
2971 switch (p
.iph
.protocol
) {
2973 return tunnel_ioctl("tunl0", SIOCADDTUNNEL
, &p
);
2975 return tunnel_ioctl("sit0", SIOCADDTUNNEL
, &p
);
2982 static int __system_del_ip_tunnel(const char *name
, struct blob_attr
**tb
)
2984 struct blob_attr
*cur
;
2987 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
2989 str
= blobmsg_data(cur
);
2991 if (!strcmp(str
, "greip") || !strcmp(str
, "gretapip") ||
2992 !strcmp(str
, "greip6") || !strcmp(str
, "gretapip6") ||
2993 !strcmp(str
, "vtiip") || !strcmp(str
, "vtiip6") ||
2994 !strcmp(str
, "vxlan") || !strcmp(str
, "vxlan6"))
2995 return system_link_del(name
);
2997 return tunnel_ioctl(name
, SIOCDELTUNNEL
, NULL
);
3000 int system_del_ip_tunnel(const char *name
, struct blob_attr
*attr
)
3002 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
3004 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
3005 blob_data(attr
), blob_len(attr
));
3007 return __system_del_ip_tunnel(name
, tb
);
3010 int system_update_ipv6_mtu(struct device
*dev
, int mtu
)
3016 snprintf(buf
, sizeof(buf
), "/proc/sys/net/ipv6/conf/%s/mtu",
3019 fd
= open(buf
, O_RDWR
);
3024 ssize_t len
= read(fd
, buf
, sizeof(buf
) - 1);
3031 if (write(fd
, buf
, snprintf(buf
, sizeof(buf
), "%i", mtu
)) > 0)
3040 int system_add_ip_tunnel(const char *name
, struct blob_attr
*attr
)
3042 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
3043 struct blob_attr
*cur
;
3046 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
3047 blob_data(attr
), blob_len(attr
));
3049 __system_del_ip_tunnel(name
, tb
);
3051 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
3053 str
= blobmsg_data(cur
);
3055 unsigned int ttl
= 0;
3056 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
3057 ttl
= blobmsg_get_u32(cur
);
3062 unsigned int link
= 0;
3063 if ((cur
= tb
[TUNNEL_ATTR_LINK
])) {
3064 struct interface
*iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
3068 if (iface
->l3_dev
.dev
)
3069 link
= iface
->l3_dev
.dev
->ifindex
;
3072 if (!strcmp(str
, "sit"))
3073 return system_add_sit_tunnel(name
, link
, tb
);
3074 #ifdef IFLA_IPTUN_MAX
3075 else if (!strcmp(str
, "ipip6")) {
3076 return system_add_ip6_tunnel(name
, link
, tb
);
3077 } else if (!strcmp(str
, "greip")) {
3078 return system_add_gre_tunnel(name
, "gre", link
, tb
, false);
3079 } else if (!strcmp(str
, "gretapip")) {
3080 return system_add_gre_tunnel(name
, "gretap", link
, tb
, false);
3081 } else if (!strcmp(str
, "greip6")) {
3082 return system_add_gre_tunnel(name
, "ip6gre", link
, tb
, true);
3083 } else if (!strcmp(str
, "gretapip6")) {
3084 return system_add_gre_tunnel(name
, "ip6gretap", link
, tb
, true);
3086 } else if (!strcmp(str
, "vtiip")) {
3087 return system_add_vti_tunnel(name
, "vti", link
, tb
, false);
3088 } else if (!strcmp(str
, "vtiip6")) {
3089 return system_add_vti_tunnel(name
, "vti6", link
, tb
, true);
3091 #ifdef IFLA_VXLAN_MAX
3092 } else if(!strcmp(str
, "vxlan")) {
3093 return system_add_vxlan(name
, link
, tb
, false);
3094 } else if(!strcmp(str
, "vxlan6")) {
3095 return system_add_vxlan(name
, link
, tb
, true);
3098 } else if (!strcmp(str
, "ipip")) {
3099 return system_add_proto_tunnel(name
, IPPROTO_IPIP
, link
, tb
);