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
));
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
));
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
));
784 ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
);
785 ifr
.ifr_flags
|= add
;
786 ifr
.ifr_flags
&= ~rem
;
787 return ioctl(sock_ioctl
, SIOCSIFFLAGS
, &ifr
);
799 static bool check_ifaddr(struct nlmsghdr
*hdr
, int ifindex
)
801 struct ifaddrmsg
*ifa
= NLMSG_DATA(hdr
);
803 return ifa
->ifa_index
== ifindex
;
806 static bool check_route(struct nlmsghdr
*hdr
, int ifindex
)
808 struct rtmsg
*r
= NLMSG_DATA(hdr
);
809 struct nlattr
*tb
[__RTA_MAX
];
811 if (r
->rtm_protocol
== RTPROT_KERNEL
&&
812 r
->rtm_family
== AF_INET6
)
815 nlmsg_parse(hdr
, sizeof(struct rtmsg
), tb
, __RTA_MAX
- 1, NULL
);
819 return *(int *)RTA_DATA(tb
[RTA_OIF
]) == ifindex
;
822 static bool check_rule(struct nlmsghdr
*hdr
, int ifindex
)
827 static int cb_clear_event(struct nl_msg
*msg
, void *arg
)
829 struct clear_data
*clr
= arg
;
830 struct nlmsghdr
*hdr
= nlmsg_hdr(msg
);
831 bool (*cb
)(struct nlmsghdr
*, int ifindex
);
837 if (hdr
->nlmsg_type
!= RTM_NEWADDR
)
844 if (hdr
->nlmsg_type
!= RTM_NEWROUTE
)
851 if (hdr
->nlmsg_type
!= RTM_NEWRULE
)
860 if (!cb(hdr
, clr
->dev
? clr
->dev
->ifindex
: 0))
863 if (type
== RTM_DELRULE
)
864 D(SYSTEM
, "Remove a rule\n");
866 D(SYSTEM
, "Remove %s from device %s\n",
867 type
== RTM_DELADDR
? "an address" : "a route",
869 memcpy(nlmsg_hdr(clr
->msg
), hdr
, hdr
->nlmsg_len
);
870 hdr
= nlmsg_hdr(clr
->msg
);
871 hdr
->nlmsg_type
= type
;
872 hdr
->nlmsg_flags
= NLM_F_REQUEST
;
874 nl_socket_disable_auto_ack(sock_rtnl
);
875 nl_send_auto_complete(sock_rtnl
, clr
->msg
);
876 nl_socket_enable_auto_ack(sock_rtnl
);
882 cb_finish_event(struct nl_msg
*msg
, void *arg
)
890 error_handler(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
893 *pending
= err
->error
;
898 system_if_clear_entries(struct device
*dev
, int type
, int af
)
900 struct clear_data clr
;
901 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
904 .rtm_flags
= RTM_F_CLONED
,
906 int flags
= NLM_F_DUMP
;
915 clr
.size
= sizeof(struct rtgenmsg
);
918 clr
.size
= sizeof(struct rtmsg
);
927 clr
.msg
= nlmsg_alloc_simple(type
, flags
);
931 nlmsg_append(clr
.msg
, &rtm
, clr
.size
, 0);
932 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_clear_event
, &clr
);
933 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, cb_finish_event
, &pending
);
934 nl_cb_err(cb
, NL_CB_CUSTOM
, error_handler
, &pending
);
936 nl_send_auto_complete(sock_rtnl
, clr
.msg
);
938 nl_recvmsgs(sock_rtnl
, cb
);
946 * Clear bridge (membership) state and bring down device
948 void system_if_clear_state(struct device
*dev
)
950 static char buf
[256];
953 device_set_ifindex(dev
, system_if_resolve(dev
));
954 if (dev
->external
|| !dev
->ifindex
)
957 system_if_flags(dev
->ifname
, 0, IFF_UP
);
959 if (system_is_bridge(dev
->ifname
, buf
, sizeof(buf
))) {
960 D(SYSTEM
, "Delete existing bridge named '%s'\n", dev
->ifname
);
961 system_bridge_delbr(dev
);
965 bridge
= system_get_bridge(dev
->ifname
, buf
, sizeof(buf
));
967 D(SYSTEM
, "Remove device '%s' from bridge '%s'\n", dev
->ifname
, bridge
);
968 system_bridge_if(bridge
, dev
, SIOCBRDELIF
, NULL
);
971 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET
);
972 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET
);
973 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET6
);
974 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET6
);
975 system_set_disable_ipv6(dev
, "0");
978 static inline unsigned long
979 sec_to_jiffies(int val
)
981 return (unsigned long) val
* 100;
984 static void system_bridge_conf_multicast_deps(struct device
*bridge
,
985 struct bridge_config
*cfg
,
991 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
||
992 cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
||
993 cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
994 val
= cfg
->robustness
* cfg
->query_interval
+
995 cfg
->query_response_interval
;
997 snprintf(buf
, buf_len
, "%i", val
);
998 system_bridge_set_membership_interval(bridge
, buf
);
1000 val
= cfg
->robustness
* cfg
->query_interval
+
1001 cfg
->query_response_interval
/ 2;
1003 snprintf(buf
, buf_len
, "%i", val
);
1004 system_bridge_set_other_querier_timeout(bridge
, buf
);
1007 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1008 val
= cfg
->query_interval
/ 4;
1010 snprintf(buf
, buf_len
, "%i", val
);
1011 system_bridge_set_startup_query_interval(bridge
, buf
);
1015 static void system_bridge_conf_multicast(struct device
*bridge
,
1016 struct bridge_config
*cfg
,
1020 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_snooping",
1021 bridge
->ifname
, cfg
->igmp_snoop
? "1" : "0");
1023 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier",
1024 bridge
->ifname
, cfg
->multicast_querier
? "1" : "0");
1026 snprintf(buf
, buf_len
, "%i", cfg
->hash_max
);
1027 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/hash_max",
1028 bridge
->ifname
, buf
);
1030 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
1031 snprintf(buf
, buf_len
, "%u", bridge
->settings
.multicast_router
);
1032 system_bridge_set_multicast_router(bridge
, buf
, true);
1035 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
) {
1036 snprintf(buf
, buf_len
, "%i", cfg
->robustness
);
1037 system_bridge_set_robustness(bridge
, buf
);
1040 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1041 snprintf(buf
, buf_len
, "%i", cfg
->query_interval
);
1042 system_bridge_set_query_interval(bridge
, buf
);
1045 if (cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
1046 snprintf(buf
, buf_len
, "%i", cfg
->query_response_interval
);
1047 system_bridge_set_query_response_interval(bridge
, buf
);
1050 if (cfg
->flags
& BRIDGE_OPT_LAST_MEMBER_INTERVAL
) {
1051 snprintf(buf
, buf_len
, "%i", cfg
->last_member_interval
);
1052 system_bridge_set_last_member_interval(bridge
, buf
);
1055 system_bridge_conf_multicast_deps(bridge
, cfg
, buf
, buf_len
);
1058 int system_bridge_addbr(struct device
*bridge
, struct bridge_config
*cfg
)
1061 unsigned long args
[4] = {};
1063 if (ioctl(sock_ioctl
, SIOCBRADDBR
, bridge
->ifname
) < 0)
1066 args
[0] = BRCTL_SET_BRIDGE_STP_STATE
;
1067 args
[1] = !!cfg
->stp
;
1068 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1070 args
[0] = BRCTL_SET_BRIDGE_FORWARD_DELAY
;
1071 args
[1] = sec_to_jiffies(cfg
->forward_delay
);
1072 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1074 system_bridge_conf_multicast(bridge
, cfg
, buf
, sizeof(buf
));
1076 args
[0] = BRCTL_SET_BRIDGE_PRIORITY
;
1077 args
[1] = cfg
->priority
;
1078 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1080 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
) {
1081 args
[0] = BRCTL_SET_AGEING_TIME
;
1082 args
[1] = sec_to_jiffies(cfg
->ageing_time
);
1083 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1086 if (cfg
->flags
& BRIDGE_OPT_HELLO_TIME
) {
1087 args
[0] = BRCTL_SET_BRIDGE_HELLO_TIME
;
1088 args
[1] = sec_to_jiffies(cfg
->hello_time
);
1089 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1092 if (cfg
->flags
& BRIDGE_OPT_MAX_AGE
) {
1093 args
[0] = BRCTL_SET_BRIDGE_MAX_AGE
;
1094 args
[1] = sec_to_jiffies(cfg
->max_age
);
1095 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1101 int system_macvlan_add(struct device
*macvlan
, struct device
*dev
, struct macvlan_config
*cfg
)
1104 struct nlattr
*linkinfo
, *data
;
1105 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
1107 static const struct {
1109 enum macvlan_mode val
;
1111 { "private", MACVLAN_MODE_PRIVATE
},
1112 { "vepa", MACVLAN_MODE_VEPA
},
1113 { "bridge", MACVLAN_MODE_BRIDGE
},
1114 { "passthru", MACVLAN_MODE_PASSTHRU
},
1117 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1122 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1124 if (cfg
->flags
& MACVLAN_OPT_MACADDR
)
1125 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1126 nla_put_string(msg
, IFLA_IFNAME
, macvlan
->ifname
);
1127 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1129 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1130 goto nla_put_failure
;
1132 nla_put_string(msg
, IFLA_INFO_KIND
, "macvlan");
1134 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1135 goto nla_put_failure
;
1138 for (i
= 0; i
< ARRAY_SIZE(modes
); i
++) {
1139 if (strcmp(cfg
->mode
, modes
[i
].name
) != 0)
1142 nla_put_u32(msg
, IFLA_MACVLAN_MODE
, modes
[i
].val
);
1147 nla_nest_end(msg
, data
);
1148 nla_nest_end(msg
, linkinfo
);
1150 rv
= system_rtnl_call(msg
);
1152 D(SYSTEM
, "Error adding macvlan '%s' over '%s': %d\n", macvlan
->ifname
, dev
->ifname
, rv
);
1161 static int system_link_del(const char *ifname
)
1164 struct ifinfomsg iim
= {
1165 .ifi_family
= AF_UNSPEC
,
1169 msg
= nlmsg_alloc_simple(RTM_DELLINK
, NLM_F_REQUEST
);
1174 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1175 nla_put_string(msg
, IFLA_IFNAME
, ifname
);
1176 return system_rtnl_call(msg
);
1179 int system_macvlan_del(struct device
*macvlan
)
1181 return system_link_del(macvlan
->ifname
);
1184 int system_veth_add(struct device
*veth
, struct veth_config
*cfg
)
1187 struct ifinfomsg empty_iim
= {};
1188 struct nlattr
*linkinfo
, *data
, *veth_info
;
1191 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1196 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1198 if (cfg
->flags
& VETH_OPT_MACADDR
)
1199 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1200 nla_put_string(msg
, IFLA_IFNAME
, veth
->ifname
);
1202 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1203 goto nla_put_failure
;
1205 nla_put_string(msg
, IFLA_INFO_KIND
, "veth");
1207 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1208 goto nla_put_failure
;
1210 if (!(veth_info
= nla_nest_start(msg
, VETH_INFO_PEER
)))
1211 goto nla_put_failure
;
1213 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1215 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1216 nla_put_string(msg
, IFLA_IFNAME
, cfg
->peer_name
);
1217 if (cfg
->flags
& VETH_OPT_PEER_MACADDR
)
1218 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->peer_macaddr
), cfg
->peer_macaddr
);
1220 nla_nest_end(msg
, veth_info
);
1221 nla_nest_end(msg
, data
);
1222 nla_nest_end(msg
, linkinfo
);
1224 rv
= system_rtnl_call(msg
);
1226 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1227 D(SYSTEM
, "Error adding veth '%s' with peer '%s': %d\n", veth
->ifname
, cfg
->peer_name
, rv
);
1229 D(SYSTEM
, "Error adding veth '%s': %d\n", veth
->ifname
, rv
);
1239 int system_veth_del(struct device
*veth
)
1241 return system_link_del(veth
->ifname
);
1244 static int system_vlan(struct device
*dev
, int id
)
1246 struct vlan_ioctl_args ifr
= {
1247 .cmd
= SET_VLAN_NAME_TYPE_CMD
,
1248 .u
.name_type
= VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
,
1251 ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
1254 ifr
.cmd
= DEL_VLAN_CMD
;
1257 ifr
.cmd
= ADD_VLAN_CMD
;
1260 strncpy(ifr
.device1
, dev
->ifname
, sizeof(ifr
.device1
));
1261 return ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
1264 int system_vlan_add(struct device
*dev
, int id
)
1266 return system_vlan(dev
, id
);
1269 int system_vlan_del(struct device
*dev
)
1271 return system_vlan(dev
, -1);
1274 int system_vlandev_add(struct device
*vlandev
, struct device
*dev
, struct vlandev_config
*cfg
)
1277 struct nlattr
*linkinfo
, *data
;
1278 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
};
1281 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1286 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1287 nla_put_string(msg
, IFLA_IFNAME
, vlandev
->ifname
);
1288 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1290 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1291 goto nla_put_failure
;
1293 nla_put_string(msg
, IFLA_INFO_KIND
, "vlan");
1295 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1296 goto nla_put_failure
;
1298 nla_put_u16(msg
, IFLA_VLAN_ID
, cfg
->vid
);
1300 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
1301 nla_put_u16(msg
, IFLA_VLAN_PROTOCOL
, htons(cfg
->proto
));
1303 if(cfg
->proto
== VLAN_PROTO_8021AD
)
1304 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
);
1307 nla_nest_end(msg
, data
);
1308 nla_nest_end(msg
, linkinfo
);
1310 rv
= system_rtnl_call(msg
);
1312 D(SYSTEM
, "Error adding vlandev '%s' over '%s': %d\n", vlandev
->ifname
, dev
->ifname
, rv
);
1321 int system_vlandev_del(struct device
*vlandev
)
1323 return system_link_del(vlandev
->ifname
);
1327 system_if_get_settings(struct device
*dev
, struct device_settings
*s
)
1332 memset(&ifr
, 0, sizeof(ifr
));
1333 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
1335 if (ioctl(sock_ioctl
, SIOCGIFMTU
, &ifr
) == 0) {
1336 s
->mtu
= ifr
.ifr_mtu
;
1337 s
->flags
|= DEV_OPT_MTU
;
1340 s
->mtu6
= system_update_ipv6_mtu(dev
, 0);
1342 s
->flags
|= DEV_OPT_MTU6
;
1344 if (ioctl(sock_ioctl
, SIOCGIFTXQLEN
, &ifr
) == 0) {
1345 s
->txqueuelen
= ifr
.ifr_qlen
;
1346 s
->flags
|= DEV_OPT_TXQUEUELEN
;
1349 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0) {
1350 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
1351 s
->flags
|= DEV_OPT_MACADDR
;
1354 if (!system_get_disable_ipv6(dev
, buf
, sizeof(buf
))) {
1355 s
->ipv6
= !strtoul(buf
, NULL
, 0);
1356 s
->flags
|= DEV_OPT_IPV6
;
1359 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) == 0) {
1360 s
->promisc
= ifr
.ifr_flags
& IFF_PROMISC
;
1361 s
->flags
|= DEV_OPT_PROMISC
;
1363 s
->multicast
= ifr
.ifr_flags
& IFF_MULTICAST
;
1364 s
->flags
|= DEV_OPT_MULTICAST
;
1367 if (!system_get_rpfilter(dev
, buf
, sizeof(buf
))) {
1368 s
->rpfilter
= strtoul(buf
, NULL
, 0);
1369 s
->flags
|= DEV_OPT_RPFILTER
;
1372 if (!system_get_acceptlocal(dev
, buf
, sizeof(buf
))) {
1373 s
->acceptlocal
= strtoul(buf
, NULL
, 0);
1374 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
1377 if (!system_get_igmpversion(dev
, buf
, sizeof(buf
))) {
1378 s
->igmpversion
= strtoul(buf
, NULL
, 0);
1379 s
->flags
|= DEV_OPT_IGMPVERSION
;
1382 if (!system_get_mldversion(dev
, buf
, sizeof(buf
))) {
1383 s
->mldversion
= strtoul(buf
, NULL
, 0);
1384 s
->flags
|= DEV_OPT_MLDVERSION
;
1387 if (!system_get_neigh4reachabletime(dev
, buf
, sizeof(buf
))) {
1388 s
->neigh4reachabletime
= strtoul(buf
, NULL
, 0);
1389 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1392 if (!system_get_neigh6reachabletime(dev
, buf
, sizeof(buf
))) {
1393 s
->neigh6reachabletime
= strtoul(buf
, NULL
, 0);
1394 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1397 if (!system_get_neigh4locktime(dev
, buf
, sizeof(buf
))) {
1398 s
->neigh4locktime
= strtol(buf
, NULL
, 0);
1399 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
1402 if (!system_get_neigh4gcstaletime(dev
, buf
, sizeof(buf
))) {
1403 s
->neigh4gcstaletime
= strtoul(buf
, NULL
, 0);
1404 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1407 if (!system_get_neigh6gcstaletime(dev
, buf
, sizeof(buf
))) {
1408 s
->neigh6gcstaletime
= strtoul(buf
, NULL
, 0);
1409 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1412 if (!system_get_dadtransmits(dev
, buf
, sizeof(buf
))) {
1413 s
->dadtransmits
= strtoul(buf
, NULL
, 0);
1414 s
->flags
|= DEV_OPT_DADTRANSMITS
;
1417 if (!system_get_sendredirects(dev
, buf
, sizeof(buf
))) {
1418 s
->sendredirects
= strtoul(buf
, NULL
, 0);
1419 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
1424 system_if_apply_settings(struct device
*dev
, struct device_settings
*s
, unsigned int apply_mask
)
1429 memset(&ifr
, 0, sizeof(ifr
));
1430 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
1431 if (s
->flags
& DEV_OPT_MTU
& apply_mask
) {
1432 ifr
.ifr_mtu
= s
->mtu
;
1433 if (ioctl(sock_ioctl
, SIOCSIFMTU
, &ifr
) < 0)
1434 s
->flags
&= ~DEV_OPT_MTU
;
1436 if (s
->flags
& DEV_OPT_MTU6
& apply_mask
) {
1437 system_update_ipv6_mtu(dev
, s
->mtu6
);
1439 if (s
->flags
& DEV_OPT_TXQUEUELEN
& apply_mask
) {
1440 ifr
.ifr_qlen
= s
->txqueuelen
;
1441 if (ioctl(sock_ioctl
, SIOCSIFTXQLEN
, &ifr
) < 0)
1442 s
->flags
&= ~DEV_OPT_TXQUEUELEN
;
1444 if ((s
->flags
& DEV_OPT_MACADDR
& apply_mask
) && !dev
->external
) {
1445 ifr
.ifr_hwaddr
.sa_family
= ARPHRD_ETHER
;
1446 memcpy(&ifr
.ifr_hwaddr
.sa_data
, s
->macaddr
, sizeof(s
->macaddr
));
1447 if (ioctl(sock_ioctl
, SIOCSIFHWADDR
, &ifr
) < 0)
1448 s
->flags
&= ~DEV_OPT_MACADDR
;
1450 if (s
->flags
& DEV_OPT_IPV6
& apply_mask
)
1451 system_set_disable_ipv6(dev
, s
->ipv6
? "0" : "1");
1452 if (s
->flags
& DEV_OPT_PROMISC
& apply_mask
) {
1453 if (system_if_flags(dev
->ifname
, s
->promisc
? IFF_PROMISC
: 0,
1454 !s
->promisc
? IFF_PROMISC
: 0) < 0)
1455 s
->flags
&= ~DEV_OPT_PROMISC
;
1457 if (s
->flags
& DEV_OPT_RPFILTER
& apply_mask
) {
1458 snprintf(buf
, sizeof(buf
), "%u", s
->rpfilter
);
1459 system_set_rpfilter(dev
, buf
);
1461 if (s
->flags
& DEV_OPT_ACCEPTLOCAL
& apply_mask
)
1462 system_set_acceptlocal(dev
, s
->acceptlocal
? "1" : "0");
1463 if (s
->flags
& DEV_OPT_IGMPVERSION
& apply_mask
) {
1464 snprintf(buf
, sizeof(buf
), "%u", s
->igmpversion
);
1465 system_set_igmpversion(dev
, buf
);
1467 if (s
->flags
& DEV_OPT_MLDVERSION
& apply_mask
) {
1468 snprintf(buf
, sizeof(buf
), "%u", s
->mldversion
);
1469 system_set_mldversion(dev
, buf
);
1471 if (s
->flags
& DEV_OPT_NEIGHREACHABLETIME
& apply_mask
) {
1472 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4reachabletime
);
1473 system_set_neigh4reachabletime(dev
, buf
);
1474 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6reachabletime
);
1475 system_set_neigh6reachabletime(dev
, buf
);
1477 if (s
->flags
& DEV_OPT_NEIGHLOCKTIME
& apply_mask
) {
1478 snprintf(buf
, sizeof(buf
), "%d", s
->neigh4locktime
);
1479 system_set_neigh4locktime(dev
, buf
);
1481 if (s
->flags
& DEV_OPT_NEIGHGCSTALETIME
& apply_mask
) {
1482 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4gcstaletime
);
1483 system_set_neigh4gcstaletime(dev
, buf
);
1484 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6gcstaletime
);
1485 system_set_neigh6gcstaletime(dev
, buf
);
1487 if (s
->flags
& DEV_OPT_DADTRANSMITS
& apply_mask
) {
1488 snprintf(buf
, sizeof(buf
), "%u", s
->dadtransmits
);
1489 system_set_dadtransmits(dev
, buf
);
1491 if (s
->flags
& DEV_OPT_MULTICAST
& apply_mask
) {
1492 if (system_if_flags(dev
->ifname
, s
->multicast
? IFF_MULTICAST
: 0,
1493 !s
->multicast
? IFF_MULTICAST
: 0) < 0)
1494 s
->flags
&= ~DEV_OPT_MULTICAST
;
1496 if (s
->flags
& DEV_OPT_SENDREDIRECTS
& apply_mask
)
1497 system_set_sendredirects(dev
, s
->sendredirects
? "1" : "0");
1500 int system_if_up(struct device
*dev
)
1502 system_if_get_settings(dev
, &dev
->orig_settings
);
1503 /* Only keep orig settings based on what needs to be set */
1504 dev
->orig_settings
.valid_flags
= dev
->orig_settings
.flags
;
1505 dev
->orig_settings
.flags
&= dev
->settings
.flags
;
1506 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
1507 return system_if_flags(dev
->ifname
, IFF_UP
, 0);
1510 int system_if_down(struct device
*dev
)
1512 int ret
= system_if_flags(dev
->ifname
, 0, IFF_UP
);
1513 system_if_apply_settings(dev
, &dev
->orig_settings
, dev
->orig_settings
.flags
);
1517 struct if_check_data
{
1523 #ifndef IFF_LOWER_UP
1524 #define IFF_LOWER_UP 0x10000
1527 static int cb_if_check_valid(struct nl_msg
*msg
, void *arg
)
1529 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
1530 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
1531 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1533 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
1536 device_set_present(chk
->dev
, ifi
->ifi_index
> 0 ? true : false);
1537 device_set_link(chk
->dev
, ifi
->ifi_flags
& IFF_LOWER_UP
? true : false);
1542 static int cb_if_check_ack(struct nl_msg
*msg
, void *arg
)
1544 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1549 static int cb_if_check_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1551 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1553 device_set_present(chk
->dev
, false);
1554 device_set_link(chk
->dev
, false);
1555 chk
->pending
= err
->error
;
1560 int system_if_check(struct device
*dev
)
1562 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1564 struct ifinfomsg ifi
= {
1565 .ifi_family
= AF_UNSPEC
,
1568 struct if_check_data chk
= {
1577 msg
= nlmsg_alloc_simple(RTM_GETLINK
, 0);
1581 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
1582 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
1585 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_check_valid
, &chk
);
1586 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_check_ack
, &chk
);
1587 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_check_error
, &chk
);
1589 nl_send_auto_complete(sock_rtnl
, msg
);
1590 while (chk
.pending
> 0)
1591 nl_recvmsgs(sock_rtnl
, cb
);
1603 system_if_get_parent(struct device
*dev
)
1605 char buf
[64], *devname
;
1606 int ifindex
, iflink
, len
;
1609 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/iflink", dev
->ifname
);
1610 f
= fopen(buf
, "r");
1614 len
= fread(buf
, 1, sizeof(buf
) - 1, f
);
1621 iflink
= strtoul(buf
, NULL
, 0);
1622 ifindex
= system_if_resolve(dev
);
1623 if (!iflink
|| iflink
== ifindex
)
1626 devname
= if_indextoname(iflink
, buf
);
1630 return device_get(devname
, true);
1634 read_string_file(int dir_fd
, const char *file
, char *buf
, int len
)
1640 fd
= openat(dir_fd
, file
, O_RDONLY
);
1645 len
= read(fd
, buf
, len
- 1);
1649 } else if (len
> 0) {
1652 c
= strchr(buf
, '\n');
1665 read_uint64_file(int dir_fd
, const char *file
, uint64_t *val
)
1670 ret
= read_string_file(dir_fd
, file
, buf
, sizeof(buf
));
1672 *val
= strtoull(buf
, NULL
, 0);
1677 /* Assume advertised flags == supported flags */
1678 static const struct {
1681 } ethtool_link_modes
[] = {
1682 { ADVERTISED_10baseT_Half
, "10H" },
1683 { ADVERTISED_10baseT_Full
, "10F" },
1684 { ADVERTISED_100baseT_Half
, "100H" },
1685 { ADVERTISED_100baseT_Full
, "100F" },
1686 { ADVERTISED_1000baseT_Half
, "1000H" },
1687 { ADVERTISED_1000baseT_Full
, "1000F" },
1690 static void system_add_link_modes(struct blob_buf
*b
, __u32 mask
)
1693 for (i
= 0; i
< ARRAY_SIZE(ethtool_link_modes
); i
++) {
1694 if (mask
& ethtool_link_modes
[i
].mask
)
1695 blobmsg_add_string(b
, NULL
, ethtool_link_modes
[i
].name
);
1700 system_if_force_external(const char *ifname
)
1705 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/phy80211", ifname
);
1706 return stat(buf
, &s
) == 0;
1710 system_if_dump_info(struct device
*dev
, struct blob_buf
*b
)
1712 struct ethtool_cmd ecmd
;
1717 memset(&ecmd
, 0, sizeof(ecmd
));
1718 memset(&ifr
, 0, sizeof(ifr
));
1719 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
1720 ifr
.ifr_data
= (caddr_t
) &ecmd
;
1721 ecmd
.cmd
= ETHTOOL_GSET
;
1723 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) == 0) {
1724 c
= blobmsg_open_array(b
, "link-advertising");
1725 system_add_link_modes(b
, ecmd
.advertising
);
1726 blobmsg_close_array(b
, c
);
1728 c
= blobmsg_open_array(b
, "link-supported");
1729 system_add_link_modes(b
, ecmd
.supported
);
1730 blobmsg_close_array(b
, c
);
1732 s
= blobmsg_alloc_string_buffer(b
, "speed", 8);
1733 snprintf(s
, 8, "%d%c", ethtool_cmd_speed(&ecmd
),
1734 ecmd
.duplex
== DUPLEX_HALF
? 'H' : 'F');
1735 blobmsg_add_string_buffer(b
);
1742 system_if_dump_stats(struct device
*dev
, struct blob_buf
*b
)
1744 const char *const counters
[] = {
1745 "collisions", "rx_frame_errors", "tx_compressed",
1746 "multicast", "rx_length_errors", "tx_dropped",
1747 "rx_bytes", "rx_missed_errors", "tx_errors",
1748 "rx_compressed", "rx_over_errors", "tx_fifo_errors",
1749 "rx_crc_errors", "rx_packets", "tx_heartbeat_errors",
1750 "rx_dropped", "tx_aborted_errors", "tx_packets",
1751 "rx_errors", "tx_bytes", "tx_window_errors",
1752 "rx_fifo_errors", "tx_carrier_errors",
1759 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/statistics", dev
->ifname
);
1760 stats_dir
= open(buf
, O_DIRECTORY
);
1764 for (i
= 0; i
< ARRAY_SIZE(counters
); i
++)
1765 if (read_uint64_file(stats_dir
, counters
[i
], &val
))
1766 blobmsg_add_u64(b
, counters
[i
], val
);
1772 static int system_addr(struct device
*dev
, struct device_addr
*addr
, int cmd
)
1774 bool v4
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
);
1775 int alen
= v4
? 4 : 16;
1776 unsigned int flags
= 0;
1777 struct ifaddrmsg ifa
= {
1778 .ifa_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
1779 .ifa_prefixlen
= addr
->mask
,
1780 .ifa_index
= dev
->ifindex
,
1784 if (cmd
== RTM_NEWADDR
)
1785 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
1787 msg
= nlmsg_alloc_simple(cmd
, flags
);
1791 nlmsg_append(msg
, &ifa
, sizeof(ifa
), 0);
1792 nla_put(msg
, IFA_LOCAL
, alen
, &addr
->addr
);
1794 if (addr
->broadcast
)
1795 nla_put_u32(msg
, IFA_BROADCAST
, addr
->broadcast
);
1796 if (addr
->point_to_point
)
1797 nla_put_u32(msg
, IFA_ADDRESS
, addr
->point_to_point
);
1799 time_t now
= system_get_rtime();
1800 struct ifa_cacheinfo cinfo
= {0xffffffffU
, 0xffffffffU
, 0, 0};
1802 if (addr
->preferred_until
) {
1803 int64_t preferred
= addr
->preferred_until
- now
;
1806 else if (preferred
> UINT32_MAX
)
1807 preferred
= UINT32_MAX
;
1809 cinfo
.ifa_prefered
= preferred
;
1812 if (addr
->valid_until
) {
1813 int64_t valid
= addr
->valid_until
- now
;
1818 else if (valid
> UINT32_MAX
)
1821 cinfo
.ifa_valid
= valid
;
1824 nla_put(msg
, IFA_CACHEINFO
, sizeof(cinfo
), &cinfo
);
1826 if (cmd
== RTM_NEWADDR
&& (addr
->flags
& DEVADDR_OFFLINK
))
1827 nla_put_u32(msg
, IFA_FLAGS
, IFA_F_NOPREFIXROUTE
);
1830 return system_rtnl_call(msg
);
1833 int system_add_address(struct device
*dev
, struct device_addr
*addr
)
1835 return system_addr(dev
, addr
, RTM_NEWADDR
);
1838 int system_del_address(struct device
*dev
, struct device_addr
*addr
)
1840 return system_addr(dev
, addr
, RTM_DELADDR
);
1843 static int system_rt(struct device
*dev
, struct device_route
*route
, int cmd
)
1845 int alen
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
1847 unsigned int flags
= 0;
1850 have_gw
= !!route
->nexthop
.in
.s_addr
;
1852 have_gw
= route
->nexthop
.in6
.s6_addr32
[0] ||
1853 route
->nexthop
.in6
.s6_addr32
[1] ||
1854 route
->nexthop
.in6
.s6_addr32
[2] ||
1855 route
->nexthop
.in6
.s6_addr32
[3];
1857 unsigned int table
= (route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))
1858 ? route
->table
: RT_TABLE_MAIN
;
1860 struct rtmsg rtm
= {
1861 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
1862 .rtm_dst_len
= route
->mask
,
1863 .rtm_src_len
= route
->sourcemask
,
1864 .rtm_table
= (table
< 256) ? table
: RT_TABLE_UNSPEC
,
1865 .rtm_protocol
= (route
->flags
& DEVROUTE_PROTO
) ? route
->proto
: RTPROT_STATIC
,
1866 .rtm_scope
= RT_SCOPE_NOWHERE
,
1867 .rtm_type
= (cmd
== RTM_DELROUTE
) ? 0: RTN_UNICAST
,
1868 .rtm_flags
= (route
->flags
& DEVROUTE_ONLINK
) ? RTNH_F_ONLINK
: 0,
1872 if (cmd
== RTM_NEWROUTE
) {
1873 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
1875 if (!dev
) { // Add null-route
1876 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
1877 rtm
.rtm_type
= RTN_UNREACHABLE
;
1880 rtm
.rtm_scope
= (have_gw
) ? RT_SCOPE_UNIVERSE
: RT_SCOPE_LINK
;
1883 if (route
->flags
& DEVROUTE_TYPE
) {
1884 rtm
.rtm_type
= route
->type
;
1885 if (!(route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))) {
1886 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_BROADCAST
||
1887 rtm
.rtm_type
== RTN_NAT
|| rtm
.rtm_type
== RTN_ANYCAST
)
1888 rtm
.rtm_table
= RT_TABLE_LOCAL
;
1891 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_NAT
) {
1892 rtm
.rtm_scope
= RT_SCOPE_HOST
;
1893 } else if (rtm
.rtm_type
== RTN_BROADCAST
|| rtm
.rtm_type
== RTN_MULTICAST
||
1894 rtm
.rtm_type
== RTN_ANYCAST
) {
1895 rtm
.rtm_scope
= RT_SCOPE_LINK
;
1896 } else if (rtm
.rtm_type
== RTN_BLACKHOLE
|| rtm
.rtm_type
== RTN_UNREACHABLE
||
1897 rtm
.rtm_type
== RTN_PROHIBIT
|| rtm
.rtm_type
== RTN_FAILED_POLICY
||
1898 rtm
.rtm_type
== RTN_THROW
) {
1899 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
1904 msg
= nlmsg_alloc_simple(cmd
, flags
);
1908 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
1911 nla_put(msg
, RTA_DST
, alen
, &route
->addr
);
1913 if (route
->sourcemask
) {
1914 if (rtm
.rtm_family
== AF_INET
)
1915 nla_put(msg
, RTA_PREFSRC
, alen
, &route
->source
);
1917 nla_put(msg
, RTA_SRC
, alen
, &route
->source
);
1920 if (route
->metric
> 0)
1921 nla_put_u32(msg
, RTA_PRIORITY
, route
->metric
);
1924 nla_put(msg
, RTA_GATEWAY
, alen
, &route
->nexthop
);
1927 nla_put_u32(msg
, RTA_OIF
, dev
->ifindex
);
1930 nla_put_u32(msg
, RTA_TABLE
, table
);
1932 if (route
->flags
& DEVROUTE_MTU
) {
1933 struct nlattr
*metrics
;
1935 if (!(metrics
= nla_nest_start(msg
, RTA_METRICS
)))
1936 goto nla_put_failure
;
1938 nla_put_u32(msg
, RTAX_MTU
, route
->mtu
);
1940 nla_nest_end(msg
, metrics
);
1943 return system_rtnl_call(msg
);
1950 int system_add_route(struct device
*dev
, struct device_route
*route
)
1952 return system_rt(dev
, route
, RTM_NEWROUTE
);
1955 int system_del_route(struct device
*dev
, struct device_route
*route
)
1957 return system_rt(dev
, route
, RTM_DELROUTE
);
1960 int system_flush_routes(void)
1962 const char *names
[] = {
1963 "/proc/sys/net/ipv4/route/flush",
1964 "/proc/sys/net/ipv6/route/flush"
1968 for (i
= 0; i
< ARRAY_SIZE(names
); i
++) {
1969 fd
= open(names
[i
], O_WRONLY
);
1973 if (write(fd
, "-1", 2)) {}
1979 bool system_resolve_rt_type(const char *type
, unsigned int *id
)
1981 return system_rtn_aton(type
, id
);
1984 bool system_resolve_rt_proto(const char *type
, unsigned int *id
)
1988 unsigned int n
, proto
= 256;
1989 n
= strtoul(type
, &e
, 0);
1990 if (!*e
&& e
!= type
)
1992 else if (!strcmp(type
, "unspec"))
1993 proto
= RTPROT_UNSPEC
;
1994 else if (!strcmp(type
, "kernel"))
1995 proto
= RTPROT_KERNEL
;
1996 else if (!strcmp(type
, "boot"))
1997 proto
= RTPROT_BOOT
;
1998 else if (!strcmp(type
, "static"))
1999 proto
= RTPROT_STATIC
;
2000 else if ((f
= fopen("/etc/iproute2/rt_protos", "r")) != NULL
) {
2001 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
) {
2002 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2005 n
= strtoul(e
, NULL
, 10);
2006 e
= strtok(NULL
, " \t\n");
2008 if (e
&& !strcmp(e
, type
)) {
2023 bool system_resolve_rt_table(const char *name
, unsigned int *id
)
2027 unsigned int n
, table
= RT_TABLE_UNSPEC
;
2029 /* first try to parse table as number */
2030 if ((n
= strtoul(name
, &e
, 0)) > 0 && !*e
)
2033 /* handle well known aliases */
2034 else if (!strcmp(name
, "default"))
2035 table
= RT_TABLE_DEFAULT
;
2036 else if (!strcmp(name
, "main"))
2037 table
= RT_TABLE_MAIN
;
2038 else if (!strcmp(name
, "local"))
2039 table
= RT_TABLE_LOCAL
;
2041 /* try to look up name in /etc/iproute2/rt_tables */
2042 else if ((f
= fopen("/etc/iproute2/rt_tables", "r")) != NULL
)
2044 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
)
2046 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2049 n
= strtoul(e
, NULL
, 10);
2050 e
= strtok(NULL
, " \t\n");
2052 if (e
&& !strcmp(e
, name
))
2062 if (table
== RT_TABLE_UNSPEC
)
2069 bool system_is_default_rt_table(unsigned int id
)
2071 return (id
== RT_TABLE_MAIN
);
2074 bool system_resolve_rpfilter(const char *filter
, unsigned int *id
)
2079 if (!strcmp(filter
, "strict"))
2081 else if (!strcmp(filter
, "loose"))
2084 n
= strtoul(filter
, &e
, 0);
2085 if (*e
|| e
== filter
|| n
> 2)
2093 static int system_iprule(struct iprule
*rule
, int cmd
)
2095 int alen
= ((rule
->flags
& IPRULE_FAMILY
) == IPRULE_INET4
) ? 4 : 16;
2098 struct rtmsg rtm
= {
2099 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2100 .rtm_protocol
= RTPROT_STATIC
,
2101 .rtm_scope
= RT_SCOPE_UNIVERSE
,
2102 .rtm_table
= RT_TABLE_UNSPEC
,
2103 .rtm_type
= RTN_UNSPEC
,
2107 if (cmd
== RTM_NEWRULE
)
2108 rtm
.rtm_type
= RTN_UNICAST
;
2111 rtm
.rtm_flags
|= FIB_RULE_INVERT
;
2113 if (rule
->flags
& IPRULE_SRC
)
2114 rtm
.rtm_src_len
= rule
->src_mask
;
2116 if (rule
->flags
& IPRULE_DEST
)
2117 rtm
.rtm_dst_len
= rule
->dest_mask
;
2119 if (rule
->flags
& IPRULE_TOS
)
2120 rtm
.rtm_tos
= rule
->tos
;
2122 if (rule
->flags
& IPRULE_LOOKUP
) {
2123 if (rule
->lookup
< 256)
2124 rtm
.rtm_table
= rule
->lookup
;
2127 if (rule
->flags
& IPRULE_ACTION
)
2128 rtm
.rtm_type
= rule
->action
;
2129 else if (rule
->flags
& IPRULE_GOTO
)
2130 rtm
.rtm_type
= FR_ACT_GOTO
;
2131 else if (!(rule
->flags
& (IPRULE_LOOKUP
| IPRULE_ACTION
| IPRULE_GOTO
)))
2132 rtm
.rtm_type
= FR_ACT_NOP
;
2134 msg
= nlmsg_alloc_simple(cmd
, NLM_F_REQUEST
);
2139 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
2141 if (rule
->flags
& IPRULE_IN
)
2142 nla_put(msg
, FRA_IFNAME
, strlen(rule
->in_dev
) + 1, rule
->in_dev
);
2144 if (rule
->flags
& IPRULE_OUT
)
2145 nla_put(msg
, FRA_OIFNAME
, strlen(rule
->out_dev
) + 1, rule
->out_dev
);
2147 if (rule
->flags
& IPRULE_SRC
)
2148 nla_put(msg
, FRA_SRC
, alen
, &rule
->src_addr
);
2150 if (rule
->flags
& IPRULE_DEST
)
2151 nla_put(msg
, FRA_DST
, alen
, &rule
->dest_addr
);
2153 if (rule
->flags
& IPRULE_PRIORITY
)
2154 nla_put_u32(msg
, FRA_PRIORITY
, rule
->priority
);
2155 else if (cmd
== RTM_NEWRULE
)
2156 nla_put_u32(msg
, FRA_PRIORITY
, rule
->order
);
2158 if (rule
->flags
& IPRULE_FWMARK
)
2159 nla_put_u32(msg
, FRA_FWMARK
, rule
->fwmark
);
2161 if (rule
->flags
& IPRULE_FWMASK
)
2162 nla_put_u32(msg
, FRA_FWMASK
, rule
->fwmask
);
2164 if (rule
->flags
& IPRULE_LOOKUP
) {
2165 if (rule
->lookup
>= 256)
2166 nla_put_u32(msg
, FRA_TABLE
, rule
->lookup
);
2169 if (rule
->flags
& IPRULE_SUP_PREFIXLEN
)
2170 nla_put_u32(msg
, FRA_SUPPRESS_PREFIXLEN
, rule
->sup_prefixlen
);
2172 if (rule
->flags
& IPRULE_GOTO
)
2173 nla_put_u32(msg
, FRA_GOTO
, rule
->gotoid
);
2175 return system_rtnl_call(msg
);
2178 int system_add_iprule(struct iprule
*rule
)
2180 return system_iprule(rule
, RTM_NEWRULE
);
2183 int system_del_iprule(struct iprule
*rule
)
2185 return system_iprule(rule
, RTM_DELRULE
);
2188 int system_flush_iprules(void)
2193 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET
);
2194 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET6
);
2196 memset(&rule
, 0, sizeof(rule
));
2199 rule
.flags
= IPRULE_INET4
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
2202 rule
.lookup
= RT_TABLE_LOCAL
;
2203 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2205 rule
.priority
= 32766;
2206 rule
.lookup
= RT_TABLE_MAIN
;
2207 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2209 rule
.priority
= 32767;
2210 rule
.lookup
= RT_TABLE_DEFAULT
;
2211 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2214 rule
.flags
= IPRULE_INET6
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
2217 rule
.lookup
= RT_TABLE_LOCAL
;
2218 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2220 rule
.priority
= 32766;
2221 rule
.lookup
= RT_TABLE_MAIN
;
2222 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2227 bool system_resolve_iprule_action(const char *action
, unsigned int *id
)
2229 return system_rtn_aton(action
, id
);
2232 time_t system_get_rtime(void)
2237 if (syscall(__NR_clock_gettime
, CLOCK_MONOTONIC
, &ts
) == 0)
2240 if (gettimeofday(&tv
, NULL
) == 0)
2247 #define IP_DF 0x4000
2250 static int tunnel_ioctl(const char *name
, int cmd
, void *p
)
2254 memset(&ifr
, 0, sizeof(ifr
));
2255 strncpy(ifr
.ifr_name
, name
, sizeof(ifr
.ifr_name
));
2256 ifr
.ifr_ifru
.ifru_data
= p
;
2257 return ioctl(sock_ioctl
, cmd
, &ifr
);
2260 #ifdef IFLA_IPTUN_MAX
2261 static int system_add_ip6_tunnel(const char *name
, const unsigned int link
,
2262 struct blob_attr
**tb
)
2264 struct nl_msg
*nlm
= nlmsg_alloc_simple(RTM_NEWLINK
,
2265 NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2266 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
};
2267 struct blob_attr
*cur
;
2268 int ret
= 0, ttl
= 0;
2273 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2274 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2277 nla_put_u32(nlm
, IFLA_LINK
, link
);
2279 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2285 nla_put_string(nlm
, IFLA_INFO_KIND
, "ip6tnl");
2286 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2293 nla_put_u32(nlm
, IFLA_IPTUN_LINK
, link
);
2295 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2296 ttl
= blobmsg_get_u32(cur
);
2298 nla_put_u8(nlm
, IFLA_IPTUN_PROTO
, IPPROTO_IPIP
);
2299 nla_put_u8(nlm
, IFLA_IPTUN_TTL
, (ttl
) ? ttl
: 64);
2300 nla_put_u8(nlm
, IFLA_IPTUN_ENCAP_LIMIT
, 4);
2302 struct in6_addr in6buf
;
2303 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2304 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2308 nla_put(nlm
, IFLA_IPTUN_LOCAL
, sizeof(in6buf
), &in6buf
);
2311 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2312 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2316 nla_put(nlm
, IFLA_IPTUN_REMOTE
, sizeof(in6buf
), &in6buf
);
2319 #ifdef IFLA_IPTUN_FMR_MAX
2320 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2321 struct blob_attr
*dcur
;
2322 unsigned drem
, fmrcnt
= 0;
2323 struct nlattr
*fmrs
= nla_nest_start(nlm
, IFLA_IPTUN_FMRS
);
2330 blobmsg_for_each_attr(dcur
, cur
, drem
) {
2331 if (blobmsg_type(dcur
) != BLOBMSG_TYPE_ARRAY
||
2332 strcmp(blobmsg_name(dcur
), "fmrs") ||
2333 blobmsg_check_array(dcur
, BLOBMSG_TYPE_UNSPEC
) <= 0)
2336 struct blob_attr
*rcur
;
2338 blobmsg_for_each_attr(rcur
, dcur
, rrem
) {
2339 struct blob_attr
*tb_fmr
[__FMR_DATA_ATTR_MAX
], *tb_cur
;
2340 struct in6_addr ip6prefix
;
2341 struct in_addr ip4prefix
;
2342 unsigned ip4len
, ip6len
, ealen
, offset
;
2344 blobmsg_parse(fmr_data_attr_list
.params
, __FMR_DATA_ATTR_MAX
, tb_fmr
,
2345 blobmsg_data(rcur
), blobmsg_len(rcur
));
2347 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX6
]) ||
2348 !parse_ip_and_netmask(AF_INET6
,
2349 blobmsg_data(tb_cur
), &ip6prefix
,
2355 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX4
]) ||
2356 !parse_ip_and_netmask(AF_INET
,
2357 blobmsg_data(tb_cur
), &ip4prefix
,
2363 if (!(tb_cur
= tb_fmr
[FMR_DATA_EALEN
])) {
2367 ealen
= blobmsg_get_u32(tb_cur
);
2369 if (!(tb_cur
= tb_fmr
[FMR_DATA_OFFSET
])) {
2373 offset
= blobmsg_get_u32(tb_cur
);
2375 struct nlattr
*rule
= nla_nest_start(nlm
, ++fmrcnt
);
2381 nla_put(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX
, sizeof(ip6prefix
), &ip6prefix
);
2382 nla_put(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX
, sizeof(ip4prefix
), &ip4prefix
);
2383 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX_LEN
, ip6len
);
2384 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX_LEN
, ip4len
);
2385 nla_put_u8(nlm
, IFLA_IPTUN_FMR_EA_LEN
, ealen
);
2386 nla_put_u8(nlm
, IFLA_IPTUN_FMR_OFFSET
, offset
);
2388 nla_nest_end(nlm
, rule
);
2391 nla_nest_end(nlm
, fmrs
);
2395 nla_nest_end(nlm
, infodata
);
2396 nla_nest_end(nlm
, linkinfo
);
2398 return system_rtnl_call(nlm
);
2406 #ifdef IFLA_IPTUN_MAX
2407 #define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
2408 static int system_add_gre_tunnel(const char *name
, const char *kind
,
2409 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
2412 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
2413 struct blob_attr
*cur
;
2414 uint32_t ikey
= 0, okey
= 0, flags
= 0, flowinfo
= 0;
2415 uint16_t iflags
= 0, oflags
= 0;
2417 int ret
= 0, ttl
= 0;
2419 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2423 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2424 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2426 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2432 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
2433 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2440 nla_put_u32(nlm
, IFLA_GRE_LINK
, link
);
2442 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2443 ttl
= blobmsg_get_u32(cur
);
2445 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
2446 char *str
= blobmsg_get_string(cur
);
2447 if (strcmp(str
, "inherit")) {
2450 if (!system_tos_aton(str
, &uval
)) {
2456 flowinfo
|= htonl(uval
<< 20) & IP6_FLOWINFO_TCLASS
;
2461 flags
|= IP6_TNL_F_USE_ORIG_TCLASS
;
2467 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2468 struct blob_attr
*tb_data
[__GRE_DATA_ATTR_MAX
];
2470 blobmsg_parse(gre_data_attr_list
.params
, __GRE_DATA_ATTR_MAX
, tb_data
,
2471 blobmsg_data(cur
), blobmsg_len(cur
));
2473 if ((cur
= tb_data
[GRE_DATA_IKEY
])) {
2474 if ((ikey
= blobmsg_get_u32(cur
)))
2478 if ((cur
= tb_data
[GRE_DATA_OKEY
])) {
2479 if ((okey
= blobmsg_get_u32(cur
)))
2483 if ((cur
= tb_data
[GRE_DATA_ICSUM
])) {
2484 if (blobmsg_get_bool(cur
))
2488 if ((cur
= tb_data
[GRE_DATA_OCSUM
])) {
2489 if (blobmsg_get_bool(cur
))
2493 if ((cur
= tb_data
[GRE_DATA_ISEQNO
])) {
2494 if (blobmsg_get_bool(cur
))
2498 if ((cur
= tb
[GRE_DATA_OSEQNO
])) {
2499 if (blobmsg_get_bool(cur
))
2505 struct in6_addr in6buf
;
2506 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2507 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2511 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(in6buf
), &in6buf
);
2514 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2515 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2519 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(in6buf
), &in6buf
);
2521 nla_put_u8(nlm
, IFLA_GRE_ENCAP_LIMIT
, 4);
2524 nla_put_u32(nlm
, IFLA_GRE_FLOWINFO
, flowinfo
);
2527 nla_put_u32(nlm
, IFLA_GRE_FLAGS
, flags
);
2532 struct in_addr inbuf
;
2535 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2536 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2540 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(inbuf
), &inbuf
);
2543 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2544 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2548 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(inbuf
), &inbuf
);
2550 if (IN_MULTICAST(ntohl(inbuf
.s_addr
))) {
2552 okey
= inbuf
.s_addr
;
2557 ikey
= inbuf
.s_addr
;
2563 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
2564 set_df
= blobmsg_get_bool(cur
);
2567 /* ttl != 0 and nopmtudisc are incompatible */
2575 nla_put_u8(nlm
, IFLA_GRE_PMTUDISC
, set_df
? 1 : 0);
2577 nla_put_u8(nlm
, IFLA_GRE_TOS
, tos
);
2581 nla_put_u8(nlm
, IFLA_GRE_TTL
, ttl
);
2584 nla_put_u16(nlm
, IFLA_GRE_OFLAGS
, oflags
);
2587 nla_put_u16(nlm
, IFLA_GRE_IFLAGS
, iflags
);
2590 nla_put_u32(nlm
, IFLA_GRE_OKEY
, htonl(okey
));
2593 nla_put_u32(nlm
, IFLA_GRE_IKEY
, htonl(ikey
));
2595 nla_nest_end(nlm
, infodata
);
2596 nla_nest_end(nlm
, linkinfo
);
2598 return system_rtnl_call(nlm
);
2607 static int system_add_vti_tunnel(const char *name
, const char *kind
,
2608 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
2611 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
2612 struct blob_attr
*cur
;
2615 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2619 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2620 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2622 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2628 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
2629 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2636 nla_put_u32(nlm
, IFLA_VTI_LINK
, link
);
2639 struct in6_addr in6buf
;
2640 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2641 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2645 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(in6buf
), &in6buf
);
2648 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2649 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2653 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(in6buf
), &in6buf
);
2657 struct in_addr inbuf
;
2659 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2660 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2664 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(inbuf
), &inbuf
);
2667 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2668 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2672 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(inbuf
), &inbuf
);
2677 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2678 struct blob_attr
*tb_data
[__VTI_DATA_ATTR_MAX
];
2679 uint32_t ikey
= 0, okey
= 0;
2681 blobmsg_parse(vti_data_attr_list
.params
, __VTI_DATA_ATTR_MAX
, tb_data
,
2682 blobmsg_data(cur
), blobmsg_len(cur
));
2684 if ((cur
= tb_data
[VTI_DATA_IKEY
])) {
2685 if ((ikey
= blobmsg_get_u32(cur
)))
2686 nla_put_u32(nlm
, IFLA_VTI_IKEY
, htonl(ikey
));
2689 if ((cur
= tb_data
[VTI_DATA_OKEY
])) {
2690 if ((okey
= blobmsg_get_u32(cur
)))
2691 nla_put_u32(nlm
, IFLA_VTI_OKEY
, htonl(okey
));
2695 nla_nest_end(nlm
, infodata
);
2696 nla_nest_end(nlm
, linkinfo
);
2698 return system_rtnl_call(nlm
);
2706 #ifdef IFLA_VXLAN_MAX
2707 static int system_add_vxlan(const char *name
, const unsigned int link
, struct blob_attr
**tb
, bool v6
)
2709 struct blob_attr
*tb_data
[__VXLAN_DATA_ATTR_MAX
];
2711 struct nlattr
*linkinfo
, *data
;
2712 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
2713 struct blob_attr
*cur
;
2716 if ((cur
= tb
[TUNNEL_ATTR_DATA
]))
2717 blobmsg_parse(vxlan_data_attr_list
.params
, __VXLAN_DATA_ATTR_MAX
, tb_data
,
2718 blobmsg_data(cur
), blobmsg_len(cur
));
2722 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
2727 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
2729 nla_put_string(msg
, IFLA_IFNAME
, name
);
2731 if ((cur
= tb_data
[VXLAN_DATA_ATTR_MACADDR
])) {
2732 struct ether_addr
*ea
= ether_aton(blobmsg_get_string(cur
));
2738 nla_put(msg
, IFLA_ADDRESS
, ETH_ALEN
, ea
);
2741 if ((cur
= tb
[TUNNEL_ATTR_MTU
])) {
2742 uint32_t mtu
= blobmsg_get_u32(cur
);
2743 nla_put_u32(msg
, IFLA_MTU
, mtu
);
2746 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
))) {
2751 nla_put_string(msg
, IFLA_INFO_KIND
, "vxlan");
2753 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
))) {
2759 nla_put_u32(msg
, IFLA_VXLAN_LINK
, link
);
2761 if ((cur
= tb_data
[VXLAN_DATA_ATTR_ID
])) {
2762 uint32_t id
= blobmsg_get_u32(cur
);
2763 if (id
>= (1u << 24) - 1) {
2768 nla_put_u32(msg
, IFLA_VXLAN_ID
, id
);
2772 struct in6_addr in6buf
;
2773 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2774 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2778 nla_put(msg
, IFLA_VXLAN_LOCAL6
, sizeof(in6buf
), &in6buf
);
2781 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2782 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2786 nla_put(msg
, IFLA_VXLAN_GROUP6
, sizeof(in6buf
), &in6buf
);
2789 struct in_addr inbuf
;
2791 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2792 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2796 nla_put(msg
, IFLA_VXLAN_LOCAL
, sizeof(inbuf
), &inbuf
);
2799 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2800 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2804 nla_put(msg
, IFLA_VXLAN_GROUP
, sizeof(inbuf
), &inbuf
);
2808 uint32_t port
= 4789;
2809 if ((cur
= tb_data
[VXLAN_DATA_ATTR_PORT
])) {
2810 port
= blobmsg_get_u32(cur
);
2811 if (port
< 1 || port
> 65535) {
2816 nla_put_u16(msg
, IFLA_VXLAN_PORT
, htons(port
));
2818 if ((cur
= tb_data
[VXLAN_DATA_ATTR_RXCSUM
])) {
2819 bool rxcsum
= blobmsg_get_bool(cur
);
2820 nla_put_u8(msg
, IFLA_VXLAN_UDP_ZERO_CSUM6_RX
, !rxcsum
);
2823 if ((cur
= tb_data
[VXLAN_DATA_ATTR_TXCSUM
])) {
2824 bool txcsum
= blobmsg_get_bool(cur
);
2825 nla_put_u8(msg
, IFLA_VXLAN_UDP_CSUM
, txcsum
);
2826 nla_put_u8(msg
, IFLA_VXLAN_UDP_ZERO_CSUM6_TX
, !txcsum
);
2829 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
2830 char *str
= blobmsg_get_string(cur
);
2833 if (strcmp(str
, "inherit")) {
2834 if (!system_tos_aton(str
, &tos
)) {
2840 nla_put_u8(msg
, IFLA_VXLAN_TOS
, tos
);
2843 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
2844 uint32_t ttl
= blobmsg_get_u32(cur
);
2845 if (ttl
< 1 || ttl
> 255) {
2850 nla_put_u8(msg
, IFLA_VXLAN_TTL
, ttl
);
2853 nla_nest_end(msg
, data
);
2854 nla_nest_end(msg
, linkinfo
);
2856 ret
= system_rtnl_call(msg
);
2858 D(SYSTEM
, "Error adding vxlan '%s': %d\n", name
, ret
);
2868 static int system_add_sit_tunnel(const char *name
, const unsigned int link
, struct blob_attr
**tb
)
2870 struct blob_attr
*cur
;
2873 if (system_add_proto_tunnel(name
, IPPROTO_IPV6
, link
, tb
) < 0)
2877 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2878 struct blob_attr
*tb_data
[__SIXRD_DATA_ATTR_MAX
];
2880 struct ip_tunnel_6rd p6
;
2882 blobmsg_parse(sixrd_data_attr_list
.params
, __SIXRD_DATA_ATTR_MAX
, tb_data
,
2883 blobmsg_data(cur
), blobmsg_len(cur
));
2885 memset(&p6
, 0, sizeof(p6
));
2887 if ((cur
= tb_data
[SIXRD_DATA_PREFIX
])) {
2888 if (!parse_ip_and_netmask(AF_INET6
, blobmsg_data(cur
),
2889 &p6
.prefix
, &mask
) || mask
> 128) {
2894 p6
.prefixlen
= mask
;
2897 if ((cur
= tb_data
[SIXRD_DATA_RELAY_PREFIX
])) {
2898 if (!parse_ip_and_netmask(AF_INET
, blobmsg_data(cur
),
2899 &p6
.relay_prefix
, &mask
) || mask
> 32) {
2904 p6
.relay_prefixlen
= mask
;
2907 if (tunnel_ioctl(name
, SIOCADD6RD
, &p6
) < 0) {
2917 __system_del_ip_tunnel(name
, tb
);
2921 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
, const unsigned int link
, struct blob_attr
**tb
)
2923 struct blob_attr
*cur
;
2925 struct ip_tunnel_parm p
= {
2934 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
]) &&
2935 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.saddr
) < 1)
2938 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
]) &&
2939 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.daddr
) < 1)
2942 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
2943 set_df
= blobmsg_get_bool(cur
);
2945 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2946 p
.iph
.ttl
= blobmsg_get_u32(cur
);
2948 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
2949 char *str
= blobmsg_get_string(cur
);
2950 if (strcmp(str
, "inherit")) {
2953 if (!system_tos_aton(str
, &uval
))
2961 p
.iph
.frag_off
= set_df
? htons(IP_DF
) : 0;
2962 /* ttl !=0 and nopmtudisc are incompatible */
2963 if (p
.iph
.ttl
&& p
.iph
.frag_off
== 0)
2966 strncpy(p
.name
, name
, sizeof(p
.name
));
2968 switch (p
.iph
.protocol
) {
2970 return tunnel_ioctl("tunl0", SIOCADDTUNNEL
, &p
);
2972 return tunnel_ioctl("sit0", SIOCADDTUNNEL
, &p
);
2979 static int __system_del_ip_tunnel(const char *name
, struct blob_attr
**tb
)
2981 struct blob_attr
*cur
;
2984 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
2986 str
= blobmsg_data(cur
);
2988 if (!strcmp(str
, "greip") || !strcmp(str
, "gretapip") ||
2989 !strcmp(str
, "greip6") || !strcmp(str
, "gretapip6") ||
2990 !strcmp(str
, "vtiip") || !strcmp(str
, "vtiip6") ||
2991 !strcmp(str
, "vxlan") || !strcmp(str
, "vxlan6"))
2992 return system_link_del(name
);
2994 return tunnel_ioctl(name
, SIOCDELTUNNEL
, NULL
);
2997 int system_del_ip_tunnel(const char *name
, struct blob_attr
*attr
)
2999 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
3001 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
3002 blob_data(attr
), blob_len(attr
));
3004 return __system_del_ip_tunnel(name
, tb
);
3007 int system_update_ipv6_mtu(struct device
*dev
, int mtu
)
3013 snprintf(buf
, sizeof(buf
), "/proc/sys/net/ipv6/conf/%s/mtu",
3016 fd
= open(buf
, O_RDWR
);
3021 ssize_t len
= read(fd
, buf
, sizeof(buf
) - 1);
3028 if (write(fd
, buf
, snprintf(buf
, sizeof(buf
), "%i", mtu
)) > 0)
3037 int system_add_ip_tunnel(const char *name
, struct blob_attr
*attr
)
3039 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
3040 struct blob_attr
*cur
;
3043 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
3044 blob_data(attr
), blob_len(attr
));
3046 __system_del_ip_tunnel(name
, tb
);
3048 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
3050 str
= blobmsg_data(cur
);
3052 unsigned int ttl
= 0;
3053 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
3054 ttl
= blobmsg_get_u32(cur
);
3059 unsigned int link
= 0;
3060 if ((cur
= tb
[TUNNEL_ATTR_LINK
])) {
3061 struct interface
*iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
3065 if (iface
->l3_dev
.dev
)
3066 link
= iface
->l3_dev
.dev
->ifindex
;
3069 if (!strcmp(str
, "sit"))
3070 return system_add_sit_tunnel(name
, link
, tb
);
3071 #ifdef IFLA_IPTUN_MAX
3072 else if (!strcmp(str
, "ipip6")) {
3073 return system_add_ip6_tunnel(name
, link
, tb
);
3074 } else if (!strcmp(str
, "greip")) {
3075 return system_add_gre_tunnel(name
, "gre", link
, tb
, false);
3076 } else if (!strcmp(str
, "gretapip")) {
3077 return system_add_gre_tunnel(name
, "gretap", link
, tb
, false);
3078 } else if (!strcmp(str
, "greip6")) {
3079 return system_add_gre_tunnel(name
, "ip6gre", link
, tb
, true);
3080 } else if (!strcmp(str
, "gretapip6")) {
3081 return system_add_gre_tunnel(name
, "ip6gretap", link
, tb
, true);
3083 } else if (!strcmp(str
, "vtiip")) {
3084 return system_add_vti_tunnel(name
, "vti", link
, tb
, false);
3085 } else if (!strcmp(str
, "vtiip6")) {
3086 return system_add_vti_tunnel(name
, "vti6", link
, tb
, true);
3088 #ifdef IFLA_VXLAN_MAX
3089 } else if(!strcmp(str
, "vxlan")) {
3090 return system_add_vxlan(name
, link
, tb
, false);
3091 } else if(!strcmp(str
, "vxlan6")) {
3092 return system_add_vxlan(name
, link
, tb
, true);
3095 } else if (!strcmp(str
, "ipip")) {
3096 return system_add_proto_tunnel(name
, IPPROTO_IPIP
, link
, tb
);