2 * netifd - network interface daemon
3 * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
4 * Copyright (C) 2013 Jo-Philipp Wich <jow@openwrt.org>
5 * Copyright (C) 2013 Steven Barth <steven@midlink.org>
6 * Copyright (C) 2014 Gioacchino Mazzurco <gio@eigenlab.org>
7 * Copyright (C) 2017 Matthias Schiffer <mschiffer@universe-factory.net>
8 * Copyright (C) 2018 Hans Dedecker <dedeckeh@gmail.com>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2
12 * as published by the Free Software Foundation
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
21 #include <sys/socket.h>
22 #include <sys/ioctl.h>
24 #include <sys/syscall.h>
27 #include <net/if_arp.h>
29 #include <arpa/inet.h>
30 #include <netinet/ether.h>
31 #include <netinet/in.h>
33 #include <linux/rtnetlink.h>
34 #include <linux/sockios.h>
36 #include <linux/if_addr.h>
37 #include <linux/if_link.h>
38 #include <linux/if_vlan.h>
39 #include <linux/if_bridge.h>
40 #include <linux/if_tunnel.h>
41 #include <linux/ip6_tunnel.h>
42 #include <linux/ethtool.h>
43 #include <linux/fib_rules.h>
44 #include <linux/veth.h>
45 #include <linux/version.h>
47 #ifndef RTN_FAILED_POLICY
48 #define RTN_FAILED_POLICY 12
51 #ifndef IFA_F_NOPREFIXROUTE
52 #define IFA_F_NOPREFIXROUTE 0x200
56 #define IFA_FLAGS (IFA_MULTICAST + 1)
65 #include <netlink/msg.h>
66 #include <netlink/attr.h>
67 #include <netlink/socket.h>
68 #include <libubox/uloop.h>
75 struct uloop_fd uloop
;
80 static int sock_ioctl
= -1;
81 static struct nl_sock
*sock_rtnl
= NULL
;
83 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
);
84 static void handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
);
85 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
,
86 const unsigned int link
, struct blob_attr
**tb
);
87 static int __system_del_ip_tunnel(const char *name
, struct blob_attr
**tb
);
89 static char dev_buf
[256];
92 handler_nl_event(struct uloop_fd
*u
, unsigned int events
)
94 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
96 socklen_t errlen
= sizeof(err
);
99 nl_recvmsgs_default(ev
->sock
);
103 if (getsockopt(u
->fd
, SOL_SOCKET
, SO_ERROR
, (void *)&err
, &errlen
))
108 // Increase rx buffer size on netlink socket
110 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
113 // Request full dump since some info got dropped
114 struct rtgenmsg msg
= { .rtgen_family
= AF_UNSPEC
};
115 nl_send_simple(ev
->sock
, RTM_GETLINK
, NLM_F_DUMP
, &msg
, sizeof(msg
));
125 uloop_fd_delete(&ev
->uloop
);
129 static struct nl_sock
*
130 create_socket(int protocol
, int groups
)
132 struct nl_sock
*sock
;
134 sock
= nl_socket_alloc();
139 nl_join_groups(sock
, groups
);
141 if (nl_connect(sock
, protocol
))
148 create_raw_event_socket(struct event_socket
*ev
, int protocol
, int groups
,
149 uloop_fd_handler cb
, int flags
)
151 ev
->sock
= create_socket(protocol
, groups
);
155 ev
->uloop
.fd
= nl_socket_get_fd(ev
->sock
);
157 if (uloop_fd_add(&ev
->uloop
, ULOOP_READ
|flags
))
164 create_event_socket(struct event_socket
*ev
, int protocol
,
165 int (*cb
)(struct nl_msg
*msg
, void *arg
))
167 if (!create_raw_event_socket(ev
, protocol
, 0, handler_nl_event
, ULOOP_ERROR_CB
))
170 // Install the valid custom callback handler
171 nl_socket_modify_cb(ev
->sock
, NL_CB_VALID
, NL_CB_CUSTOM
, cb
, NULL
);
173 // Disable sequence number checking on event sockets
174 nl_socket_disable_seq_check(ev
->sock
);
176 // Increase rx buffer size to 65K on event sockets
178 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
185 system_rtn_aton(const char *src
, unsigned int *dst
)
190 if (!strcmp(src
, "local"))
192 else if (!strcmp(src
, "nat"))
194 else if (!strcmp(src
, "broadcast"))
196 else if (!strcmp(src
, "anycast"))
198 else if (!strcmp(src
, "multicast"))
200 else if (!strcmp(src
, "prohibit"))
202 else if (!strcmp(src
, "unreachable"))
204 else if (!strcmp(src
, "blackhole"))
206 else if (!strcmp(src
, "xresolve"))
208 else if (!strcmp(src
, "unicast"))
210 else if (!strcmp(src
, "throw"))
212 else if (!strcmp(src
, "failed_policy"))
213 n
= RTN_FAILED_POLICY
;
215 n
= strtoul(src
, &e
, 0);
216 if (!e
|| *e
|| e
== src
|| n
> 255)
225 system_tos_aton(const char *src
, unsigned *dst
)
229 *dst
= strtoul(src
, &e
, 16);
230 if (e
== src
|| *e
|| *dst
> 255)
236 int system_init(void)
238 static struct event_socket rtnl_event
;
239 static struct event_socket hotplug_event
;
241 sock_ioctl
= socket(AF_LOCAL
, SOCK_DGRAM
, 0);
242 system_fd_set_cloexec(sock_ioctl
);
244 // Prepare socket for routing / address control
245 sock_rtnl
= create_socket(NETLINK_ROUTE
, 0);
249 if (!create_event_socket(&rtnl_event
, NETLINK_ROUTE
, cb_rtnl_event
))
252 if (!create_raw_event_socket(&hotplug_event
, NETLINK_KOBJECT_UEVENT
, 1,
253 handle_hotplug_event
, 0))
256 // Receive network link events form kernel
257 nl_socket_add_membership(rtnl_event
.sock
, RTNLGRP_LINK
);
262 static void system_set_sysctl(const char *path
, const char *val
)
266 fd
= open(path
, O_WRONLY
);
270 if (write(fd
, val
, strlen(val
))) {}
274 static void system_set_dev_sysctl(const char *path
, const char *device
, const char *val
)
276 snprintf(dev_buf
, sizeof(dev_buf
), path
, device
);
277 system_set_sysctl(dev_buf
, val
);
280 static void system_set_disable_ipv6(struct device
*dev
, const char *val
)
282 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6", dev
->ifname
, val
);
285 static void system_set_rpfilter(struct device
*dev
, const char *val
)
287 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/rp_filter", dev
->ifname
, val
);
290 static void system_set_acceptlocal(struct device
*dev
, const char *val
)
292 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/accept_local", dev
->ifname
, val
);
295 static void system_set_igmpversion(struct device
*dev
, const char *val
)
297 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/force_igmp_version", dev
->ifname
, val
);
300 static void system_set_mldversion(struct device
*dev
, const char *val
)
302 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/force_mld_version", dev
->ifname
, val
);
305 static void system_set_neigh4reachabletime(struct device
*dev
, const char *val
)
307 system_set_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/base_reachable_time_ms", dev
->ifname
, val
);
310 static void system_set_neigh6reachabletime(struct device
*dev
, const char *val
)
312 system_set_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/base_reachable_time_ms", dev
->ifname
, val
);
315 static void system_set_neigh4gcstaletime(struct device
*dev
, const char *val
)
317 system_set_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/gc_stale_time", dev
->ifname
, val
);
320 static void system_set_neigh6gcstaletime(struct device
*dev
, const char *val
)
322 system_set_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/gc_stale_time", dev
->ifname
, val
);
325 static void system_set_neigh4locktime(struct device
*dev
, const char *val
)
327 system_set_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/locktime", dev
->ifname
, val
);
330 static void system_set_dadtransmits(struct device
*dev
, const char *val
)
332 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/dad_transmits", dev
->ifname
, val
);
335 static void system_bridge_set_multicast_to_unicast(struct device
*dev
, const char *val
)
337 system_set_dev_sysctl("/sys/class/net/%s/brport/multicast_to_unicast", dev
->ifname
, val
);
340 static void system_bridge_set_multicast_fast_leave(struct device
*dev
, const char *val
)
342 system_set_dev_sysctl("/sys/class/net/%s/brport/multicast_fast_leave", dev
->ifname
, val
);
345 static void system_bridge_set_hairpin_mode(struct device
*dev
, const char *val
)
347 system_set_dev_sysctl("/sys/class/net/%s/brport/hairpin_mode", dev
->ifname
, val
);
350 static void system_bridge_set_isolated(struct device
*dev
, const char *val
)
352 system_set_dev_sysctl("/sys/class/net/%s/brport/isolated", dev
->ifname
, val
);
355 static void system_bridge_set_multicast_router(struct device
*dev
, const char *val
, bool bridge
)
357 system_set_dev_sysctl(bridge
? "/sys/class/net/%s/bridge/multicast_router" :
358 "/sys/class/net/%s/brport/multicast_router",
362 static void system_bridge_set_robustness(struct device
*dev
, const char *val
)
364 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_startup_query_count",
366 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_last_member_count",
370 static void system_bridge_set_query_interval(struct device
*dev
, const char *val
)
372 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_query_interval",
376 static void system_bridge_set_query_response_interval(struct device
*dev
, const char *val
)
378 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_query_response_interval",
382 static void system_bridge_set_last_member_interval(struct device
*dev
, const char *val
)
384 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_last_member_interval",
388 static void system_bridge_set_membership_interval(struct device
*dev
, const char *val
)
390 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_membership_interval",
394 static void system_bridge_set_other_querier_timeout(struct device
*dev
, const char *val
)
396 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier_interval",
400 static void system_bridge_set_startup_query_interval(struct device
*dev
, const char *val
)
402 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_startup_query_interval",
406 static void system_bridge_set_learning(struct device
*dev
, const char *val
)
408 system_set_dev_sysctl("/sys/class/net/%s/brport/learning", dev
->ifname
, val
);
411 static void system_bridge_set_unicast_flood(struct device
*dev
, const char *val
)
413 system_set_dev_sysctl("/sys/class/net/%s/brport/unicast_flood", dev
->ifname
, val
);
416 static void system_set_sendredirects(struct device
*dev
, const char *val
)
418 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/send_redirects", dev
->ifname
, val
);
421 static int system_get_sysctl(const char *path
, char *buf
, const size_t buf_sz
)
423 int fd
= -1, ret
= -1;
425 fd
= open(path
, O_RDONLY
);
429 ssize_t len
= read(fd
, buf
, buf_sz
- 1);
443 system_get_dev_sysctl(const char *path
, const char *device
, char *buf
, const size_t buf_sz
)
445 snprintf(dev_buf
, sizeof(dev_buf
), path
, device
);
446 return system_get_sysctl(dev_buf
, buf
, buf_sz
);
449 static int system_get_disable_ipv6(struct device
*dev
, char *buf
, const size_t buf_sz
)
451 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6",
452 dev
->ifname
, buf
, buf_sz
);
455 static int system_get_rpfilter(struct device
*dev
, char *buf
, const size_t buf_sz
)
457 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/rp_filter",
458 dev
->ifname
, buf
, buf_sz
);
461 static int system_get_acceptlocal(struct device
*dev
, char *buf
, const size_t buf_sz
)
463 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/accept_local",
464 dev
->ifname
, buf
, buf_sz
);
467 static int system_get_igmpversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
469 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/force_igmp_version",
470 dev
->ifname
, buf
, buf_sz
);
473 static int system_get_mldversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
475 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/force_mld_version",
476 dev
->ifname
, buf
, buf_sz
);
479 static int system_get_neigh4reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
481 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/base_reachable_time_ms",
482 dev
->ifname
, buf
, buf_sz
);
485 static int system_get_neigh6reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
487 return system_get_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/base_reachable_time_ms",
488 dev
->ifname
, buf
, buf_sz
);
491 static int system_get_neigh4gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
493 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/gc_stale_time",
494 dev
->ifname
, buf
, buf_sz
);
497 static int system_get_neigh6gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
499 return system_get_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/gc_stale_time",
500 dev
->ifname
, buf
, buf_sz
);
503 static int system_get_neigh4locktime(struct device
*dev
, char *buf
, const size_t buf_sz
)
505 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/locktime",
506 dev
->ifname
, buf
, buf_sz
);
509 static int system_get_dadtransmits(struct device
*dev
, char *buf
, const size_t buf_sz
)
511 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/dad_transmits",
512 dev
->ifname
, buf
, buf_sz
);
515 static int system_get_sendredirects(struct device
*dev
, char *buf
, const size_t buf_sz
)
517 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/send_redirects",
518 dev
->ifname
, buf
, buf_sz
);
521 // Evaluate netlink messages
522 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
)
524 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
525 struct nlattr
*nla
[__IFLA_MAX
];
529 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
532 nlmsg_parse(nh
, sizeof(struct ifinfomsg
), nla
, __IFLA_MAX
- 1, NULL
);
533 if (!nla
[IFLA_IFNAME
])
536 struct device
*dev
= device_find(nla_data(nla
[IFLA_IFNAME
]));
540 if (!system_get_dev_sysctl("/sys/class/net/%s/carrier", dev
->ifname
, buf
, sizeof(buf
)))
541 link_state
= strtoul(buf
, NULL
, 0);
543 device_set_link(dev
, link_state
? true : false);
550 handle_hotplug_msg(char *data
, int size
)
552 const char *subsystem
= NULL
, *interface
= NULL
, *interface_old
= NULL
;
553 char *cur
, *end
, *sep
;
556 bool add
, move
= false;
558 if (!strncmp(data
, "add@", 4))
560 else if (!strncmp(data
, "remove@", 7))
562 else if (!strncmp(data
, "move@", 5)) {
569 skip
= strlen(data
) + 1;
572 for (cur
= data
+ skip
; cur
< end
; cur
+= skip
) {
573 skip
= strlen(cur
) + 1;
575 sep
= strchr(cur
, '=');
580 if (!strcmp(cur
, "INTERFACE"))
582 else if (!strcmp(cur
, "SUBSYSTEM")) {
584 if (strcmp(subsystem
, "net") != 0)
586 } else if (!strcmp(cur
, "DEVPATH_OLD")) {
587 interface_old
= strrchr(sep
+ 1, '/');
593 if (subsystem
&& interface
) {
594 if (move
&& interface_old
)
603 dev
= device_find(interface_old
);
607 if (dev
->type
!= &simple_device_type
)
610 device_set_present(dev
, false);
613 dev
= device_find(interface
);
617 if (dev
->type
!= &simple_device_type
)
620 if (add
&& system_if_force_external(dev
->ifname
))
623 device_set_present(dev
, add
);
627 handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
)
629 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
630 struct sockaddr_nl nla
;
631 unsigned char *buf
= NULL
;
634 while ((size
= nl_recv(ev
->sock
, &nla
, &buf
, NULL
)) > 0) {
636 handle_hotplug_msg((char *) buf
, size
);
642 static int system_rtnl_call(struct nl_msg
*msg
)
646 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
652 return nl_wait_for_ack(sock_rtnl
);
655 int system_bridge_delbr(struct device
*bridge
)
657 return ioctl(sock_ioctl
, SIOCBRDELBR
, bridge
->ifname
);
660 static int system_bridge_if(const char *bridge
, struct device
*dev
, int cmd
, void *data
)
664 memset(&ifr
, 0, sizeof(ifr
));
666 ifr
.ifr_ifindex
= dev
->ifindex
;
669 strncpy(ifr
.ifr_name
, bridge
, sizeof(ifr
.ifr_name
) - 1);
670 return ioctl(sock_ioctl
, cmd
, &ifr
);
673 static bool system_is_bridge(const char *name
, char *buf
, int buflen
)
677 snprintf(buf
, buflen
, "/sys/devices/virtual/net/%s/bridge", name
);
678 if (stat(buf
, &st
) < 0)
684 static char *system_get_bridge(const char *name
, char *buf
, int buflen
)
690 snprintf(buf
, buflen
, "/sys/devices/virtual/net/*/brif/%s/bridge", name
);
691 if (glob(buf
, GLOB_NOSORT
, NULL
, &gl
) < 0)
695 len
= readlink(gl
.gl_pathv
[0], buf
, buflen
);
703 path
= strrchr(buf
, '/');
711 system_bridge_set_wireless(struct device
*bridge
, struct device
*dev
)
713 bool mcast_to_ucast
= dev
->wireless_ap
;
716 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
&&
717 !bridge
->settings
.multicast_to_unicast
)
718 mcast_to_ucast
= false;
720 if (!mcast_to_ucast
|| dev
->wireless_isolate
)
723 system_bridge_set_multicast_to_unicast(dev
, mcast_to_ucast
? "1" : "0");
724 system_bridge_set_hairpin_mode(dev
, hairpin
? "1" : "0");
727 int system_bridge_addif(struct device
*bridge
, struct device
*dev
)
733 oldbr
= system_get_bridge(dev
->ifname
, dev_buf
, sizeof(dev_buf
));
734 if (!oldbr
|| strcmp(oldbr
, bridge
->ifname
) != 0)
735 ret
= system_bridge_if(bridge
->ifname
, dev
, SIOCBRADDIF
, NULL
);
738 system_bridge_set_wireless(bridge
, dev
);
740 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
741 snprintf(buf
, sizeof(buf
), "%u", dev
->settings
.multicast_router
);
742 system_bridge_set_multicast_router(dev
, buf
, false);
745 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
&&
746 dev
->settings
.multicast_fast_leave
)
747 system_bridge_set_multicast_fast_leave(dev
, "1");
749 if (dev
->settings
.flags
& DEV_OPT_LEARNING
&&
750 !dev
->settings
.learning
)
751 system_bridge_set_learning(dev
, "0");
753 if (dev
->settings
.flags
& DEV_OPT_UNICAST_FLOOD
&&
754 !dev
->settings
.unicast_flood
)
755 system_bridge_set_unicast_flood(dev
, "0");
757 if (dev
->settings
.flags
& DEV_OPT_ISOLATE
&&
758 dev
->settings
.isolate
)
759 system_bridge_set_isolated(dev
, "1");
764 int system_bridge_delif(struct device
*bridge
, struct device
*dev
)
766 return system_bridge_if(bridge
->ifname
, dev
, SIOCBRDELIF
, NULL
);
769 int system_if_resolve(struct device
*dev
)
772 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
773 if (!ioctl(sock_ioctl
, SIOCGIFINDEX
, &ifr
))
774 return ifr
.ifr_ifindex
;
779 static int system_if_flags(const char *ifname
, unsigned add
, unsigned rem
)
783 memset(&ifr
, 0, sizeof(ifr
));
784 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
785 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) < 0)
788 ifr
.ifr_flags
|= add
;
789 ifr
.ifr_flags
&= ~rem
;
790 return ioctl(sock_ioctl
, SIOCSIFFLAGS
, &ifr
);
802 static bool check_ifaddr(struct nlmsghdr
*hdr
, int ifindex
)
804 struct ifaddrmsg
*ifa
= NLMSG_DATA(hdr
);
806 return ifa
->ifa_index
== ifindex
;
809 static bool check_route(struct nlmsghdr
*hdr
, int ifindex
)
811 struct rtmsg
*r
= NLMSG_DATA(hdr
);
812 struct nlattr
*tb
[__RTA_MAX
];
814 if (r
->rtm_protocol
== RTPROT_KERNEL
&&
815 r
->rtm_family
== AF_INET6
)
818 nlmsg_parse(hdr
, sizeof(struct rtmsg
), tb
, __RTA_MAX
- 1, NULL
);
822 return *(int *)RTA_DATA(tb
[RTA_OIF
]) == ifindex
;
825 static bool check_rule(struct nlmsghdr
*hdr
, int ifindex
)
830 static int cb_clear_event(struct nl_msg
*msg
, void *arg
)
832 struct clear_data
*clr
= arg
;
833 struct nlmsghdr
*hdr
= nlmsg_hdr(msg
);
834 bool (*cb
)(struct nlmsghdr
*, int ifindex
);
840 if (hdr
->nlmsg_type
!= RTM_NEWADDR
)
847 if (hdr
->nlmsg_type
!= RTM_NEWROUTE
)
854 if (hdr
->nlmsg_type
!= RTM_NEWRULE
)
863 if (!cb(hdr
, clr
->dev
? clr
->dev
->ifindex
: 0))
866 if (type
== RTM_DELRULE
)
867 D(SYSTEM
, "Remove a rule\n");
869 D(SYSTEM
, "Remove %s from device %s\n",
870 type
== RTM_DELADDR
? "an address" : "a route",
872 memcpy(nlmsg_hdr(clr
->msg
), hdr
, hdr
->nlmsg_len
);
873 hdr
= nlmsg_hdr(clr
->msg
);
874 hdr
->nlmsg_type
= type
;
875 hdr
->nlmsg_flags
= NLM_F_REQUEST
;
877 nl_socket_disable_auto_ack(sock_rtnl
);
878 nl_send_auto_complete(sock_rtnl
, clr
->msg
);
879 nl_socket_enable_auto_ack(sock_rtnl
);
885 cb_finish_event(struct nl_msg
*msg
, void *arg
)
893 error_handler(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
896 *pending
= err
->error
;
901 system_if_clear_entries(struct device
*dev
, int type
, int af
)
903 struct clear_data clr
;
904 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
907 .rtm_flags
= RTM_F_CLONED
,
909 int flags
= NLM_F_DUMP
;
918 clr
.size
= sizeof(struct rtgenmsg
);
921 clr
.size
= sizeof(struct rtmsg
);
930 clr
.msg
= nlmsg_alloc_simple(type
, flags
);
934 nlmsg_append(clr
.msg
, &rtm
, clr
.size
, 0);
935 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_clear_event
, &clr
);
936 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, cb_finish_event
, &pending
);
937 nl_cb_err(cb
, NL_CB_CUSTOM
, error_handler
, &pending
);
939 nl_send_auto_complete(sock_rtnl
, clr
.msg
);
941 nl_recvmsgs(sock_rtnl
, cb
);
949 * Clear bridge (membership) state and bring down device
951 void system_if_clear_state(struct device
*dev
)
953 static char buf
[256];
956 device_set_ifindex(dev
, system_if_resolve(dev
));
957 if (dev
->external
|| !dev
->ifindex
)
960 system_if_flags(dev
->ifname
, 0, IFF_UP
);
962 if (system_is_bridge(dev
->ifname
, buf
, sizeof(buf
))) {
963 D(SYSTEM
, "Delete existing bridge named '%s'\n", dev
->ifname
);
964 system_bridge_delbr(dev
);
968 bridge
= system_get_bridge(dev
->ifname
, buf
, sizeof(buf
));
970 D(SYSTEM
, "Remove device '%s' from bridge '%s'\n", dev
->ifname
, bridge
);
971 system_bridge_if(bridge
, dev
, SIOCBRDELIF
, NULL
);
974 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET
);
975 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET
);
976 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET6
);
977 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET6
);
978 system_set_disable_ipv6(dev
, "0");
981 static inline unsigned long
982 sec_to_jiffies(int val
)
984 return (unsigned long) val
* 100;
987 static void system_bridge_conf_multicast_deps(struct device
*bridge
,
988 struct bridge_config
*cfg
,
994 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
||
995 cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
||
996 cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
997 val
= cfg
->robustness
* cfg
->query_interval
+
998 cfg
->query_response_interval
;
1000 snprintf(buf
, buf_len
, "%i", val
);
1001 system_bridge_set_membership_interval(bridge
, buf
);
1003 val
= cfg
->robustness
* cfg
->query_interval
+
1004 cfg
->query_response_interval
/ 2;
1006 snprintf(buf
, buf_len
, "%i", val
);
1007 system_bridge_set_other_querier_timeout(bridge
, buf
);
1010 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1011 val
= cfg
->query_interval
/ 4;
1013 snprintf(buf
, buf_len
, "%i", val
);
1014 system_bridge_set_startup_query_interval(bridge
, buf
);
1018 static void system_bridge_conf_multicast(struct device
*bridge
,
1019 struct bridge_config
*cfg
,
1023 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_snooping",
1024 bridge
->ifname
, cfg
->igmp_snoop
? "1" : "0");
1026 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier",
1027 bridge
->ifname
, cfg
->multicast_querier
? "1" : "0");
1029 snprintf(buf
, buf_len
, "%i", cfg
->hash_max
);
1030 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/hash_max",
1031 bridge
->ifname
, buf
);
1033 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
1034 snprintf(buf
, buf_len
, "%u", bridge
->settings
.multicast_router
);
1035 system_bridge_set_multicast_router(bridge
, buf
, true);
1038 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
) {
1039 snprintf(buf
, buf_len
, "%i", cfg
->robustness
);
1040 system_bridge_set_robustness(bridge
, buf
);
1043 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1044 snprintf(buf
, buf_len
, "%i", cfg
->query_interval
);
1045 system_bridge_set_query_interval(bridge
, buf
);
1048 if (cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
1049 snprintf(buf
, buf_len
, "%i", cfg
->query_response_interval
);
1050 system_bridge_set_query_response_interval(bridge
, buf
);
1053 if (cfg
->flags
& BRIDGE_OPT_LAST_MEMBER_INTERVAL
) {
1054 snprintf(buf
, buf_len
, "%i", cfg
->last_member_interval
);
1055 system_bridge_set_last_member_interval(bridge
, buf
);
1058 system_bridge_conf_multicast_deps(bridge
, cfg
, buf
, buf_len
);
1061 int system_bridge_addbr(struct device
*bridge
, struct bridge_config
*cfg
)
1064 unsigned long args
[4] = {};
1066 if (ioctl(sock_ioctl
, SIOCBRADDBR
, bridge
->ifname
) < 0)
1069 args
[0] = BRCTL_SET_BRIDGE_STP_STATE
;
1070 args
[1] = !!cfg
->stp
;
1071 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1073 args
[0] = BRCTL_SET_BRIDGE_FORWARD_DELAY
;
1074 args
[1] = sec_to_jiffies(cfg
->forward_delay
);
1075 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1077 system_bridge_conf_multicast(bridge
, cfg
, buf
, sizeof(buf
));
1079 args
[0] = BRCTL_SET_BRIDGE_PRIORITY
;
1080 args
[1] = cfg
->priority
;
1081 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1083 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
) {
1084 args
[0] = BRCTL_SET_AGEING_TIME
;
1085 args
[1] = sec_to_jiffies(cfg
->ageing_time
);
1086 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1089 if (cfg
->flags
& BRIDGE_OPT_HELLO_TIME
) {
1090 args
[0] = BRCTL_SET_BRIDGE_HELLO_TIME
;
1091 args
[1] = sec_to_jiffies(cfg
->hello_time
);
1092 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1095 if (cfg
->flags
& BRIDGE_OPT_MAX_AGE
) {
1096 args
[0] = BRCTL_SET_BRIDGE_MAX_AGE
;
1097 args
[1] = sec_to_jiffies(cfg
->max_age
);
1098 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1104 int system_macvlan_add(struct device
*macvlan
, struct device
*dev
, struct macvlan_config
*cfg
)
1107 struct nlattr
*linkinfo
, *data
;
1108 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
1110 static const struct {
1112 enum macvlan_mode val
;
1114 { "private", MACVLAN_MODE_PRIVATE
},
1115 { "vepa", MACVLAN_MODE_VEPA
},
1116 { "bridge", MACVLAN_MODE_BRIDGE
},
1117 { "passthru", MACVLAN_MODE_PASSTHRU
},
1120 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1125 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1127 if (cfg
->flags
& MACVLAN_OPT_MACADDR
)
1128 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1129 nla_put_string(msg
, IFLA_IFNAME
, macvlan
->ifname
);
1130 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1132 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1133 goto nla_put_failure
;
1135 nla_put_string(msg
, IFLA_INFO_KIND
, "macvlan");
1137 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1138 goto nla_put_failure
;
1141 for (i
= 0; i
< ARRAY_SIZE(modes
); i
++) {
1142 if (strcmp(cfg
->mode
, modes
[i
].name
) != 0)
1145 nla_put_u32(msg
, IFLA_MACVLAN_MODE
, modes
[i
].val
);
1150 nla_nest_end(msg
, data
);
1151 nla_nest_end(msg
, linkinfo
);
1153 rv
= system_rtnl_call(msg
);
1155 D(SYSTEM
, "Error adding macvlan '%s' over '%s': %d\n", macvlan
->ifname
, dev
->ifname
, rv
);
1164 static int system_link_del(const char *ifname
)
1167 struct ifinfomsg iim
= {
1168 .ifi_family
= AF_UNSPEC
,
1172 msg
= nlmsg_alloc_simple(RTM_DELLINK
, NLM_F_REQUEST
);
1177 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1178 nla_put_string(msg
, IFLA_IFNAME
, ifname
);
1179 return system_rtnl_call(msg
);
1182 int system_macvlan_del(struct device
*macvlan
)
1184 return system_link_del(macvlan
->ifname
);
1187 int system_veth_add(struct device
*veth
, struct veth_config
*cfg
)
1190 struct ifinfomsg empty_iim
= {};
1191 struct nlattr
*linkinfo
, *data
, *veth_info
;
1194 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1199 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1201 if (cfg
->flags
& VETH_OPT_MACADDR
)
1202 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1203 nla_put_string(msg
, IFLA_IFNAME
, veth
->ifname
);
1205 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1206 goto nla_put_failure
;
1208 nla_put_string(msg
, IFLA_INFO_KIND
, "veth");
1210 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1211 goto nla_put_failure
;
1213 if (!(veth_info
= nla_nest_start(msg
, VETH_INFO_PEER
)))
1214 goto nla_put_failure
;
1216 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1218 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1219 nla_put_string(msg
, IFLA_IFNAME
, cfg
->peer_name
);
1220 if (cfg
->flags
& VETH_OPT_PEER_MACADDR
)
1221 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->peer_macaddr
), cfg
->peer_macaddr
);
1223 nla_nest_end(msg
, veth_info
);
1224 nla_nest_end(msg
, data
);
1225 nla_nest_end(msg
, linkinfo
);
1227 rv
= system_rtnl_call(msg
);
1229 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1230 D(SYSTEM
, "Error adding veth '%s' with peer '%s': %d\n", veth
->ifname
, cfg
->peer_name
, rv
);
1232 D(SYSTEM
, "Error adding veth '%s': %d\n", veth
->ifname
, rv
);
1242 int system_veth_del(struct device
*veth
)
1244 return system_link_del(veth
->ifname
);
1247 static int system_vlan(struct device
*dev
, int id
)
1249 struct vlan_ioctl_args ifr
= {
1250 .cmd
= SET_VLAN_NAME_TYPE_CMD
,
1251 .u
.name_type
= VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
,
1254 if (ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
) < 0)
1258 ifr
.cmd
= DEL_VLAN_CMD
;
1261 ifr
.cmd
= ADD_VLAN_CMD
;
1264 strncpy(ifr
.device1
, dev
->ifname
, sizeof(ifr
.device1
));
1265 return ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
1268 int system_vlan_add(struct device
*dev
, int id
)
1270 return system_vlan(dev
, id
);
1273 int system_vlan_del(struct device
*dev
)
1275 return system_vlan(dev
, -1);
1278 int system_vlandev_add(struct device
*vlandev
, struct device
*dev
, struct vlandev_config
*cfg
)
1281 struct nlattr
*linkinfo
, *data
;
1282 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
};
1285 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1290 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1291 nla_put_string(msg
, IFLA_IFNAME
, vlandev
->ifname
);
1292 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1294 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1295 goto nla_put_failure
;
1297 nla_put_string(msg
, IFLA_INFO_KIND
, "vlan");
1299 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1300 goto nla_put_failure
;
1302 nla_put_u16(msg
, IFLA_VLAN_ID
, cfg
->vid
);
1304 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
1305 nla_put_u16(msg
, IFLA_VLAN_PROTOCOL
, htons(cfg
->proto
));
1307 if(cfg
->proto
== VLAN_PROTO_8021AD
)
1308 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
);
1311 nla_nest_end(msg
, data
);
1312 nla_nest_end(msg
, linkinfo
);
1314 rv
= system_rtnl_call(msg
);
1316 D(SYSTEM
, "Error adding vlandev '%s' over '%s': %d\n", vlandev
->ifname
, dev
->ifname
, rv
);
1325 int system_vlandev_del(struct device
*vlandev
)
1327 return system_link_del(vlandev
->ifname
);
1331 system_if_get_settings(struct device
*dev
, struct device_settings
*s
)
1336 memset(&ifr
, 0, sizeof(ifr
));
1337 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1339 if (ioctl(sock_ioctl
, SIOCGIFMTU
, &ifr
) == 0) {
1340 s
->mtu
= ifr
.ifr_mtu
;
1341 s
->flags
|= DEV_OPT_MTU
;
1344 s
->mtu6
= system_update_ipv6_mtu(dev
, 0);
1346 s
->flags
|= DEV_OPT_MTU6
;
1348 if (ioctl(sock_ioctl
, SIOCGIFTXQLEN
, &ifr
) == 0) {
1349 s
->txqueuelen
= ifr
.ifr_qlen
;
1350 s
->flags
|= DEV_OPT_TXQUEUELEN
;
1353 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0) {
1354 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
1355 s
->flags
|= DEV_OPT_MACADDR
;
1358 if (!system_get_disable_ipv6(dev
, buf
, sizeof(buf
))) {
1359 s
->ipv6
= !strtoul(buf
, NULL
, 0);
1360 s
->flags
|= DEV_OPT_IPV6
;
1363 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) == 0) {
1364 s
->promisc
= ifr
.ifr_flags
& IFF_PROMISC
;
1365 s
->flags
|= DEV_OPT_PROMISC
;
1367 s
->multicast
= ifr
.ifr_flags
& IFF_MULTICAST
;
1368 s
->flags
|= DEV_OPT_MULTICAST
;
1371 if (!system_get_rpfilter(dev
, buf
, sizeof(buf
))) {
1372 s
->rpfilter
= strtoul(buf
, NULL
, 0);
1373 s
->flags
|= DEV_OPT_RPFILTER
;
1376 if (!system_get_acceptlocal(dev
, buf
, sizeof(buf
))) {
1377 s
->acceptlocal
= strtoul(buf
, NULL
, 0);
1378 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
1381 if (!system_get_igmpversion(dev
, buf
, sizeof(buf
))) {
1382 s
->igmpversion
= strtoul(buf
, NULL
, 0);
1383 s
->flags
|= DEV_OPT_IGMPVERSION
;
1386 if (!system_get_mldversion(dev
, buf
, sizeof(buf
))) {
1387 s
->mldversion
= strtoul(buf
, NULL
, 0);
1388 s
->flags
|= DEV_OPT_MLDVERSION
;
1391 if (!system_get_neigh4reachabletime(dev
, buf
, sizeof(buf
))) {
1392 s
->neigh4reachabletime
= strtoul(buf
, NULL
, 0);
1393 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1396 if (!system_get_neigh6reachabletime(dev
, buf
, sizeof(buf
))) {
1397 s
->neigh6reachabletime
= strtoul(buf
, NULL
, 0);
1398 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1401 if (!system_get_neigh4locktime(dev
, buf
, sizeof(buf
))) {
1402 s
->neigh4locktime
= strtol(buf
, NULL
, 0);
1403 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
1406 if (!system_get_neigh4gcstaletime(dev
, buf
, sizeof(buf
))) {
1407 s
->neigh4gcstaletime
= strtoul(buf
, NULL
, 0);
1408 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1411 if (!system_get_neigh6gcstaletime(dev
, buf
, sizeof(buf
))) {
1412 s
->neigh6gcstaletime
= strtoul(buf
, NULL
, 0);
1413 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1416 if (!system_get_dadtransmits(dev
, buf
, sizeof(buf
))) {
1417 s
->dadtransmits
= strtoul(buf
, NULL
, 0);
1418 s
->flags
|= DEV_OPT_DADTRANSMITS
;
1421 if (!system_get_sendredirects(dev
, buf
, sizeof(buf
))) {
1422 s
->sendredirects
= strtoul(buf
, NULL
, 0);
1423 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
1428 system_if_apply_settings(struct device
*dev
, struct device_settings
*s
, unsigned int apply_mask
)
1433 memset(&ifr
, 0, sizeof(ifr
));
1434 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1435 if (s
->flags
& DEV_OPT_MTU
& apply_mask
) {
1436 ifr
.ifr_mtu
= s
->mtu
;
1437 if (ioctl(sock_ioctl
, SIOCSIFMTU
, &ifr
) < 0)
1438 s
->flags
&= ~DEV_OPT_MTU
;
1440 if (s
->flags
& DEV_OPT_MTU6
& apply_mask
) {
1441 system_update_ipv6_mtu(dev
, s
->mtu6
);
1443 if (s
->flags
& DEV_OPT_TXQUEUELEN
& apply_mask
) {
1444 ifr
.ifr_qlen
= s
->txqueuelen
;
1445 if (ioctl(sock_ioctl
, SIOCSIFTXQLEN
, &ifr
) < 0)
1446 s
->flags
&= ~DEV_OPT_TXQUEUELEN
;
1448 if ((s
->flags
& DEV_OPT_MACADDR
& apply_mask
) && !dev
->external
) {
1449 ifr
.ifr_hwaddr
.sa_family
= ARPHRD_ETHER
;
1450 memcpy(&ifr
.ifr_hwaddr
.sa_data
, s
->macaddr
, sizeof(s
->macaddr
));
1451 if (ioctl(sock_ioctl
, SIOCSIFHWADDR
, &ifr
) < 0)
1452 s
->flags
&= ~DEV_OPT_MACADDR
;
1454 if (s
->flags
& DEV_OPT_IPV6
& apply_mask
)
1455 system_set_disable_ipv6(dev
, s
->ipv6
? "0" : "1");
1456 if (s
->flags
& DEV_OPT_PROMISC
& apply_mask
) {
1457 if (system_if_flags(dev
->ifname
, s
->promisc
? IFF_PROMISC
: 0,
1458 !s
->promisc
? IFF_PROMISC
: 0) < 0)
1459 s
->flags
&= ~DEV_OPT_PROMISC
;
1461 if (s
->flags
& DEV_OPT_RPFILTER
& apply_mask
) {
1462 snprintf(buf
, sizeof(buf
), "%u", s
->rpfilter
);
1463 system_set_rpfilter(dev
, buf
);
1465 if (s
->flags
& DEV_OPT_ACCEPTLOCAL
& apply_mask
)
1466 system_set_acceptlocal(dev
, s
->acceptlocal
? "1" : "0");
1467 if (s
->flags
& DEV_OPT_IGMPVERSION
& apply_mask
) {
1468 snprintf(buf
, sizeof(buf
), "%u", s
->igmpversion
);
1469 system_set_igmpversion(dev
, buf
);
1471 if (s
->flags
& DEV_OPT_MLDVERSION
& apply_mask
) {
1472 snprintf(buf
, sizeof(buf
), "%u", s
->mldversion
);
1473 system_set_mldversion(dev
, buf
);
1475 if (s
->flags
& DEV_OPT_NEIGHREACHABLETIME
& apply_mask
) {
1476 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4reachabletime
);
1477 system_set_neigh4reachabletime(dev
, buf
);
1478 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6reachabletime
);
1479 system_set_neigh6reachabletime(dev
, buf
);
1481 if (s
->flags
& DEV_OPT_NEIGHLOCKTIME
& apply_mask
) {
1482 snprintf(buf
, sizeof(buf
), "%d", s
->neigh4locktime
);
1483 system_set_neigh4locktime(dev
, buf
);
1485 if (s
->flags
& DEV_OPT_NEIGHGCSTALETIME
& apply_mask
) {
1486 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4gcstaletime
);
1487 system_set_neigh4gcstaletime(dev
, buf
);
1488 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6gcstaletime
);
1489 system_set_neigh6gcstaletime(dev
, buf
);
1491 if (s
->flags
& DEV_OPT_DADTRANSMITS
& apply_mask
) {
1492 snprintf(buf
, sizeof(buf
), "%u", s
->dadtransmits
);
1493 system_set_dadtransmits(dev
, buf
);
1495 if (s
->flags
& DEV_OPT_MULTICAST
& apply_mask
) {
1496 if (system_if_flags(dev
->ifname
, s
->multicast
? IFF_MULTICAST
: 0,
1497 !s
->multicast
? IFF_MULTICAST
: 0) < 0)
1498 s
->flags
&= ~DEV_OPT_MULTICAST
;
1500 if (s
->flags
& DEV_OPT_SENDREDIRECTS
& apply_mask
)
1501 system_set_sendredirects(dev
, s
->sendredirects
? "1" : "0");
1504 int system_if_up(struct device
*dev
)
1506 system_if_get_settings(dev
, &dev
->orig_settings
);
1507 /* Only keep orig settings based on what needs to be set */
1508 dev
->orig_settings
.valid_flags
= dev
->orig_settings
.flags
;
1509 dev
->orig_settings
.flags
&= dev
->settings
.flags
;
1510 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
1511 return system_if_flags(dev
->ifname
, IFF_UP
, 0);
1514 int system_if_down(struct device
*dev
)
1516 int ret
= system_if_flags(dev
->ifname
, 0, IFF_UP
);
1517 system_if_apply_settings(dev
, &dev
->orig_settings
, dev
->orig_settings
.flags
);
1521 struct if_check_data
{
1527 #ifndef IFF_LOWER_UP
1528 #define IFF_LOWER_UP 0x10000
1531 static int cb_if_check_valid(struct nl_msg
*msg
, void *arg
)
1533 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
1534 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
1535 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1537 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
1540 device_set_present(chk
->dev
, ifi
->ifi_index
> 0 ? true : false);
1541 device_set_link(chk
->dev
, ifi
->ifi_flags
& IFF_LOWER_UP
? true : false);
1546 static int cb_if_check_ack(struct nl_msg
*msg
, void *arg
)
1548 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1553 static int cb_if_check_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1555 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1557 device_set_present(chk
->dev
, false);
1558 device_set_link(chk
->dev
, false);
1559 chk
->pending
= err
->error
;
1564 int system_if_check(struct device
*dev
)
1566 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1568 struct ifinfomsg ifi
= {
1569 .ifi_family
= AF_UNSPEC
,
1572 struct if_check_data chk
= {
1581 msg
= nlmsg_alloc_simple(RTM_GETLINK
, 0);
1585 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
1586 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
1589 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_check_valid
, &chk
);
1590 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_check_ack
, &chk
);
1591 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_check_error
, &chk
);
1593 nl_send_auto_complete(sock_rtnl
, msg
);
1594 while (chk
.pending
> 0)
1595 nl_recvmsgs(sock_rtnl
, cb
);
1607 system_if_get_parent(struct device
*dev
)
1609 char buf
[64], *devname
;
1610 int ifindex
, iflink
, len
;
1613 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/iflink", dev
->ifname
);
1614 f
= fopen(buf
, "r");
1618 len
= fread(buf
, 1, sizeof(buf
) - 1, f
);
1625 iflink
= strtoul(buf
, NULL
, 0);
1626 ifindex
= system_if_resolve(dev
);
1627 if (!iflink
|| iflink
== ifindex
)
1630 devname
= if_indextoname(iflink
, buf
);
1634 return device_get(devname
, true);
1638 read_string_file(int dir_fd
, const char *file
, char *buf
, int len
)
1644 fd
= openat(dir_fd
, file
, O_RDONLY
);
1649 len
= read(fd
, buf
, len
- 1);
1653 } else if (len
> 0) {
1656 c
= strchr(buf
, '\n');
1669 read_uint64_file(int dir_fd
, const char *file
, uint64_t *val
)
1674 ret
= read_string_file(dir_fd
, file
, buf
, sizeof(buf
));
1676 *val
= strtoull(buf
, NULL
, 0);
1681 /* Assume advertised flags == supported flags */
1682 static const struct {
1685 } ethtool_link_modes
[] = {
1686 { ADVERTISED_10baseT_Half
, "10baseT-H" },
1687 { ADVERTISED_10baseT_Full
, "10baseT-F" },
1688 { ADVERTISED_100baseT_Half
, "100baseT-H" },
1689 { ADVERTISED_100baseT_Full
, "100baseT-F" },
1690 { ADVERTISED_1000baseT_Half
, "1000baseT-H" },
1691 { ADVERTISED_1000baseT_Full
, "1000baseT-F" },
1692 { ADVERTISED_1000baseKX_Full
, "1000baseKX-F" },
1693 { ADVERTISED_2500baseX_Full
, "2500baseX-F" },
1694 { ADVERTISED_10000baseT_Full
, "10000baseT-F" },
1695 { ADVERTISED_10000baseKX4_Full
, "10000baseKX4-F" },
1696 { ADVERTISED_10000baseKR_Full
, "10000baseKR-F" },
1697 { ADVERTISED_20000baseMLD2_Full
, "20000baseMLD2-F" },
1698 { ADVERTISED_20000baseKR2_Full
, "20000baseKR2-F" },
1699 { ADVERTISED_40000baseKR4_Full
, "40000baseKR4-F" },
1700 { ADVERTISED_40000baseCR4_Full
, "40000baseCR4-F" },
1701 { ADVERTISED_40000baseSR4_Full
, "40000baseSR4-F" },
1702 { ADVERTISED_40000baseLR4_Full
, "40000baseLR4-F" },
1703 #ifdef ADVERTISED_56000baseKR4_Full
1704 { ADVERTISED_56000baseKR4_Full
, "56000baseKR4-F" },
1705 { ADVERTISED_56000baseCR4_Full
, "56000baseCR4-F" },
1706 { ADVERTISED_56000baseSR4_Full
, "56000baseSR4-F" },
1707 { ADVERTISED_56000baseLR4_Full
, "56000baseLR4-F" },
1711 static void system_add_link_modes(struct blob_buf
*b
, __u32 mask
)
1714 for (i
= 0; i
< ARRAY_SIZE(ethtool_link_modes
); i
++) {
1715 if (mask
& ethtool_link_modes
[i
].mask
)
1716 blobmsg_add_string(b
, NULL
, ethtool_link_modes
[i
].name
);
1721 system_if_force_external(const char *ifname
)
1726 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/phy80211", ifname
);
1727 return stat(buf
, &s
) == 0;
1731 system_if_dump_info(struct device
*dev
, struct blob_buf
*b
)
1733 struct ethtool_cmd ecmd
;
1738 memset(&ecmd
, 0, sizeof(ecmd
));
1739 memset(&ifr
, 0, sizeof(ifr
));
1740 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1741 ifr
.ifr_data
= (caddr_t
) &ecmd
;
1742 ecmd
.cmd
= ETHTOOL_GSET
;
1744 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) == 0) {
1745 c
= blobmsg_open_array(b
, "link-advertising");
1746 system_add_link_modes(b
, ecmd
.advertising
);
1747 blobmsg_close_array(b
, c
);
1749 c
= blobmsg_open_array(b
, "link-partner-advertising");
1750 system_add_link_modes(b
, ecmd
.lp_advertising
);
1751 blobmsg_close_array(b
, c
);
1753 c
= blobmsg_open_array(b
, "link-supported");
1754 system_add_link_modes(b
, ecmd
.supported
);
1755 blobmsg_close_array(b
, c
);
1757 s
= blobmsg_alloc_string_buffer(b
, "speed", 8);
1758 snprintf(s
, 8, "%d%c", ethtool_cmd_speed(&ecmd
),
1759 ecmd
.duplex
== DUPLEX_HALF
? 'H' : 'F');
1760 blobmsg_add_string_buffer(b
);
1762 blobmsg_add_u8(b
, "autoneg", !!ecmd
.autoneg
);
1769 system_if_dump_stats(struct device
*dev
, struct blob_buf
*b
)
1771 const char *const counters
[] = {
1772 "collisions", "rx_frame_errors", "tx_compressed",
1773 "multicast", "rx_length_errors", "tx_dropped",
1774 "rx_bytes", "rx_missed_errors", "tx_errors",
1775 "rx_compressed", "rx_over_errors", "tx_fifo_errors",
1776 "rx_crc_errors", "rx_packets", "tx_heartbeat_errors",
1777 "rx_dropped", "tx_aborted_errors", "tx_packets",
1778 "rx_errors", "tx_bytes", "tx_window_errors",
1779 "rx_fifo_errors", "tx_carrier_errors",
1786 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/statistics", dev
->ifname
);
1787 stats_dir
= open(buf
, O_DIRECTORY
);
1791 for (i
= 0; i
< ARRAY_SIZE(counters
); i
++)
1792 if (read_uint64_file(stats_dir
, counters
[i
], &val
))
1793 blobmsg_add_u64(b
, counters
[i
], val
);
1799 static int system_addr(struct device
*dev
, struct device_addr
*addr
, int cmd
)
1801 bool v4
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
);
1802 int alen
= v4
? 4 : 16;
1803 unsigned int flags
= 0;
1804 struct ifaddrmsg ifa
= {
1805 .ifa_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
1806 .ifa_prefixlen
= addr
->mask
,
1807 .ifa_index
= dev
->ifindex
,
1811 if (cmd
== RTM_NEWADDR
)
1812 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
1814 msg
= nlmsg_alloc_simple(cmd
, flags
);
1818 nlmsg_append(msg
, &ifa
, sizeof(ifa
), 0);
1819 nla_put(msg
, IFA_LOCAL
, alen
, &addr
->addr
);
1821 if (addr
->broadcast
)
1822 nla_put_u32(msg
, IFA_BROADCAST
, addr
->broadcast
);
1823 if (addr
->point_to_point
)
1824 nla_put_u32(msg
, IFA_ADDRESS
, addr
->point_to_point
);
1826 time_t now
= system_get_rtime();
1827 struct ifa_cacheinfo cinfo
= {0xffffffffU
, 0xffffffffU
, 0, 0};
1829 if (addr
->preferred_until
) {
1830 int64_t preferred
= addr
->preferred_until
- now
;
1833 else if (preferred
> UINT32_MAX
)
1834 preferred
= UINT32_MAX
;
1836 cinfo
.ifa_prefered
= preferred
;
1839 if (addr
->valid_until
) {
1840 int64_t valid
= addr
->valid_until
- now
;
1845 else if (valid
> UINT32_MAX
)
1848 cinfo
.ifa_valid
= valid
;
1851 nla_put(msg
, IFA_CACHEINFO
, sizeof(cinfo
), &cinfo
);
1853 if (cmd
== RTM_NEWADDR
&& (addr
->flags
& DEVADDR_OFFLINK
))
1854 nla_put_u32(msg
, IFA_FLAGS
, IFA_F_NOPREFIXROUTE
);
1857 return system_rtnl_call(msg
);
1860 int system_add_address(struct device
*dev
, struct device_addr
*addr
)
1862 return system_addr(dev
, addr
, RTM_NEWADDR
);
1865 int system_del_address(struct device
*dev
, struct device_addr
*addr
)
1867 return system_addr(dev
, addr
, RTM_DELADDR
);
1870 static int system_rt(struct device
*dev
, struct device_route
*route
, int cmd
)
1872 int alen
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
1874 unsigned int flags
= 0;
1877 have_gw
= !!route
->nexthop
.in
.s_addr
;
1879 have_gw
= route
->nexthop
.in6
.s6_addr32
[0] ||
1880 route
->nexthop
.in6
.s6_addr32
[1] ||
1881 route
->nexthop
.in6
.s6_addr32
[2] ||
1882 route
->nexthop
.in6
.s6_addr32
[3];
1884 unsigned int table
= (route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))
1885 ? route
->table
: RT_TABLE_MAIN
;
1887 struct rtmsg rtm
= {
1888 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
1889 .rtm_dst_len
= route
->mask
,
1890 .rtm_src_len
= route
->sourcemask
,
1891 .rtm_table
= (table
< 256) ? table
: RT_TABLE_UNSPEC
,
1892 .rtm_protocol
= (route
->flags
& DEVROUTE_PROTO
) ? route
->proto
: RTPROT_STATIC
,
1893 .rtm_scope
= RT_SCOPE_NOWHERE
,
1894 .rtm_type
= (cmd
== RTM_DELROUTE
) ? 0: RTN_UNICAST
,
1895 .rtm_flags
= (route
->flags
& DEVROUTE_ONLINK
) ? RTNH_F_ONLINK
: 0,
1899 if (cmd
== RTM_NEWROUTE
) {
1900 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
1902 if (!dev
) { // Add null-route
1903 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
1904 rtm
.rtm_type
= RTN_UNREACHABLE
;
1907 rtm
.rtm_scope
= (have_gw
) ? RT_SCOPE_UNIVERSE
: RT_SCOPE_LINK
;
1910 if (route
->flags
& DEVROUTE_TYPE
) {
1911 rtm
.rtm_type
= route
->type
;
1912 if (!(route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))) {
1913 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_BROADCAST
||
1914 rtm
.rtm_type
== RTN_NAT
|| rtm
.rtm_type
== RTN_ANYCAST
)
1915 rtm
.rtm_table
= RT_TABLE_LOCAL
;
1918 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_NAT
) {
1919 rtm
.rtm_scope
= RT_SCOPE_HOST
;
1920 } else if (rtm
.rtm_type
== RTN_BROADCAST
|| rtm
.rtm_type
== RTN_MULTICAST
||
1921 rtm
.rtm_type
== RTN_ANYCAST
) {
1922 rtm
.rtm_scope
= RT_SCOPE_LINK
;
1923 } else if (rtm
.rtm_type
== RTN_BLACKHOLE
|| rtm
.rtm_type
== RTN_UNREACHABLE
||
1924 rtm
.rtm_type
== RTN_PROHIBIT
|| rtm
.rtm_type
== RTN_FAILED_POLICY
||
1925 rtm
.rtm_type
== RTN_THROW
) {
1926 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
1931 msg
= nlmsg_alloc_simple(cmd
, flags
);
1935 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
1938 nla_put(msg
, RTA_DST
, alen
, &route
->addr
);
1940 if (route
->sourcemask
) {
1941 if (rtm
.rtm_family
== AF_INET
)
1942 nla_put(msg
, RTA_PREFSRC
, alen
, &route
->source
);
1944 nla_put(msg
, RTA_SRC
, alen
, &route
->source
);
1947 if (route
->metric
> 0)
1948 nla_put_u32(msg
, RTA_PRIORITY
, route
->metric
);
1951 nla_put(msg
, RTA_GATEWAY
, alen
, &route
->nexthop
);
1954 nla_put_u32(msg
, RTA_OIF
, dev
->ifindex
);
1957 nla_put_u32(msg
, RTA_TABLE
, table
);
1959 if (route
->flags
& DEVROUTE_MTU
) {
1960 struct nlattr
*metrics
;
1962 if (!(metrics
= nla_nest_start(msg
, RTA_METRICS
)))
1963 goto nla_put_failure
;
1965 nla_put_u32(msg
, RTAX_MTU
, route
->mtu
);
1967 nla_nest_end(msg
, metrics
);
1970 return system_rtnl_call(msg
);
1977 int system_add_route(struct device
*dev
, struct device_route
*route
)
1979 return system_rt(dev
, route
, RTM_NEWROUTE
);
1982 int system_del_route(struct device
*dev
, struct device_route
*route
)
1984 return system_rt(dev
, route
, RTM_DELROUTE
);
1987 int system_flush_routes(void)
1989 const char *names
[] = {
1990 "/proc/sys/net/ipv4/route/flush",
1991 "/proc/sys/net/ipv6/route/flush"
1995 for (i
= 0; i
< ARRAY_SIZE(names
); i
++) {
1996 fd
= open(names
[i
], O_WRONLY
);
2000 if (write(fd
, "-1", 2)) {}
2006 bool system_resolve_rt_type(const char *type
, unsigned int *id
)
2008 return system_rtn_aton(type
, id
);
2011 bool system_resolve_rt_proto(const char *type
, unsigned int *id
)
2015 unsigned int n
, proto
= 256;
2016 n
= strtoul(type
, &e
, 0);
2017 if (!*e
&& e
!= type
)
2019 else if (!strcmp(type
, "unspec"))
2020 proto
= RTPROT_UNSPEC
;
2021 else if (!strcmp(type
, "kernel"))
2022 proto
= RTPROT_KERNEL
;
2023 else if (!strcmp(type
, "boot"))
2024 proto
= RTPROT_BOOT
;
2025 else if (!strcmp(type
, "static"))
2026 proto
= RTPROT_STATIC
;
2027 else if ((f
= fopen("/etc/iproute2/rt_protos", "r")) != NULL
) {
2028 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
) {
2029 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2032 n
= strtoul(e
, NULL
, 10);
2033 e
= strtok(NULL
, " \t\n");
2035 if (e
&& !strcmp(e
, type
)) {
2050 bool system_resolve_rt_table(const char *name
, unsigned int *id
)
2054 unsigned int n
, table
= RT_TABLE_UNSPEC
;
2056 /* first try to parse table as number */
2057 if ((n
= strtoul(name
, &e
, 0)) > 0 && !*e
)
2060 /* handle well known aliases */
2061 else if (!strcmp(name
, "default"))
2062 table
= RT_TABLE_DEFAULT
;
2063 else if (!strcmp(name
, "main"))
2064 table
= RT_TABLE_MAIN
;
2065 else if (!strcmp(name
, "local"))
2066 table
= RT_TABLE_LOCAL
;
2068 /* try to look up name in /etc/iproute2/rt_tables */
2069 else if ((f
= fopen("/etc/iproute2/rt_tables", "r")) != NULL
)
2071 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
)
2073 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2076 n
= strtoul(e
, NULL
, 10);
2077 e
= strtok(NULL
, " \t\n");
2079 if (e
&& !strcmp(e
, name
))
2089 if (table
== RT_TABLE_UNSPEC
)
2096 bool system_is_default_rt_table(unsigned int id
)
2098 return (id
== RT_TABLE_MAIN
);
2101 bool system_resolve_rpfilter(const char *filter
, unsigned int *id
)
2106 if (!strcmp(filter
, "strict"))
2108 else if (!strcmp(filter
, "loose"))
2111 n
= strtoul(filter
, &e
, 0);
2112 if (*e
|| e
== filter
|| n
> 2)
2120 static int system_iprule(struct iprule
*rule
, int cmd
)
2122 int alen
= ((rule
->flags
& IPRULE_FAMILY
) == IPRULE_INET4
) ? 4 : 16;
2125 struct rtmsg rtm
= {
2126 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2127 .rtm_protocol
= RTPROT_STATIC
,
2128 .rtm_scope
= RT_SCOPE_UNIVERSE
,
2129 .rtm_table
= RT_TABLE_UNSPEC
,
2130 .rtm_type
= RTN_UNSPEC
,
2134 if (cmd
== RTM_NEWRULE
)
2135 rtm
.rtm_type
= RTN_UNICAST
;
2138 rtm
.rtm_flags
|= FIB_RULE_INVERT
;
2140 if (rule
->flags
& IPRULE_SRC
)
2141 rtm
.rtm_src_len
= rule
->src_mask
;
2143 if (rule
->flags
& IPRULE_DEST
)
2144 rtm
.rtm_dst_len
= rule
->dest_mask
;
2146 if (rule
->flags
& IPRULE_TOS
)
2147 rtm
.rtm_tos
= rule
->tos
;
2149 if (rule
->flags
& IPRULE_LOOKUP
) {
2150 if (rule
->lookup
< 256)
2151 rtm
.rtm_table
= rule
->lookup
;
2154 if (rule
->flags
& IPRULE_ACTION
)
2155 rtm
.rtm_type
= rule
->action
;
2156 else if (rule
->flags
& IPRULE_GOTO
)
2157 rtm
.rtm_type
= FR_ACT_GOTO
;
2158 else if (!(rule
->flags
& (IPRULE_LOOKUP
| IPRULE_ACTION
| IPRULE_GOTO
)))
2159 rtm
.rtm_type
= FR_ACT_NOP
;
2161 msg
= nlmsg_alloc_simple(cmd
, NLM_F_REQUEST
);
2166 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
2168 if (rule
->flags
& IPRULE_IN
)
2169 nla_put(msg
, FRA_IFNAME
, strlen(rule
->in_dev
) + 1, rule
->in_dev
);
2171 if (rule
->flags
& IPRULE_OUT
)
2172 nla_put(msg
, FRA_OIFNAME
, strlen(rule
->out_dev
) + 1, rule
->out_dev
);
2174 if (rule
->flags
& IPRULE_SRC
)
2175 nla_put(msg
, FRA_SRC
, alen
, &rule
->src_addr
);
2177 if (rule
->flags
& IPRULE_DEST
)
2178 nla_put(msg
, FRA_DST
, alen
, &rule
->dest_addr
);
2180 if (rule
->flags
& IPRULE_PRIORITY
)
2181 nla_put_u32(msg
, FRA_PRIORITY
, rule
->priority
);
2182 else if (cmd
== RTM_NEWRULE
)
2183 nla_put_u32(msg
, FRA_PRIORITY
, rule
->order
);
2185 if (rule
->flags
& IPRULE_FWMARK
)
2186 nla_put_u32(msg
, FRA_FWMARK
, rule
->fwmark
);
2188 if (rule
->flags
& IPRULE_FWMASK
)
2189 nla_put_u32(msg
, FRA_FWMASK
, rule
->fwmask
);
2191 if (rule
->flags
& IPRULE_LOOKUP
) {
2192 if (rule
->lookup
>= 256)
2193 nla_put_u32(msg
, FRA_TABLE
, rule
->lookup
);
2196 if (rule
->flags
& IPRULE_SUP_PREFIXLEN
)
2197 nla_put_u32(msg
, FRA_SUPPRESS_PREFIXLEN
, rule
->sup_prefixlen
);
2199 if (rule
->flags
& IPRULE_GOTO
)
2200 nla_put_u32(msg
, FRA_GOTO
, rule
->gotoid
);
2202 return system_rtnl_call(msg
);
2205 int system_add_iprule(struct iprule
*rule
)
2207 return system_iprule(rule
, RTM_NEWRULE
);
2210 int system_del_iprule(struct iprule
*rule
)
2212 return system_iprule(rule
, RTM_DELRULE
);
2215 int system_flush_iprules(void)
2220 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET
);
2221 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET6
);
2223 memset(&rule
, 0, sizeof(rule
));
2226 rule
.flags
= IPRULE_INET4
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
2229 rule
.lookup
= RT_TABLE_LOCAL
;
2230 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2232 rule
.priority
= 32766;
2233 rule
.lookup
= RT_TABLE_MAIN
;
2234 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2236 rule
.priority
= 32767;
2237 rule
.lookup
= RT_TABLE_DEFAULT
;
2238 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2241 rule
.flags
= IPRULE_INET6
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
2244 rule
.lookup
= RT_TABLE_LOCAL
;
2245 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2247 rule
.priority
= 32766;
2248 rule
.lookup
= RT_TABLE_MAIN
;
2249 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2254 bool system_resolve_iprule_action(const char *action
, unsigned int *id
)
2256 return system_rtn_aton(action
, id
);
2259 time_t system_get_rtime(void)
2264 if (syscall(__NR_clock_gettime
, CLOCK_MONOTONIC
, &ts
) == 0)
2267 if (gettimeofday(&tv
, NULL
) == 0)
2274 #define IP_DF 0x4000
2277 static int tunnel_ioctl(const char *name
, int cmd
, void *p
)
2281 memset(&ifr
, 0, sizeof(ifr
));
2282 strncpy(ifr
.ifr_name
, name
, sizeof(ifr
.ifr_name
) - 1);
2283 ifr
.ifr_ifru
.ifru_data
= p
;
2284 return ioctl(sock_ioctl
, cmd
, &ifr
);
2287 #ifdef IFLA_IPTUN_MAX
2288 static int system_add_ip6_tunnel(const char *name
, const unsigned int link
,
2289 struct blob_attr
**tb
)
2291 struct nl_msg
*nlm
= nlmsg_alloc_simple(RTM_NEWLINK
,
2292 NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2293 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
};
2294 struct blob_attr
*cur
;
2295 int ret
= 0, ttl
= 0;
2300 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2301 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2304 nla_put_u32(nlm
, IFLA_LINK
, link
);
2306 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2312 nla_put_string(nlm
, IFLA_INFO_KIND
, "ip6tnl");
2313 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2320 nla_put_u32(nlm
, IFLA_IPTUN_LINK
, link
);
2322 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2323 ttl
= blobmsg_get_u32(cur
);
2325 nla_put_u8(nlm
, IFLA_IPTUN_PROTO
, IPPROTO_IPIP
);
2326 nla_put_u8(nlm
, IFLA_IPTUN_TTL
, (ttl
) ? ttl
: 64);
2328 struct in6_addr in6buf
;
2329 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2330 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2334 nla_put(nlm
, IFLA_IPTUN_LOCAL
, sizeof(in6buf
), &in6buf
);
2337 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2338 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2342 nla_put(nlm
, IFLA_IPTUN_REMOTE
, sizeof(in6buf
), &in6buf
);
2345 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2346 struct blob_attr
*tb_data
[__IPIP6_DATA_ATTR_MAX
];
2347 uint32_t tun_flags
= IP6_TNL_F_IGN_ENCAP_LIMIT
;
2349 blobmsg_parse(ipip6_data_attr_list
.params
, __IPIP6_DATA_ATTR_MAX
, tb_data
,
2350 blobmsg_data(cur
), blobmsg_len(cur
));
2352 if ((cur
= tb_data
[IPIP6_DATA_ENCAPLIMIT
])) {
2353 char *str
= blobmsg_get_string(cur
);
2355 if (strcmp(str
, "ignore")) {
2357 unsigned encap_limit
= strtoul(str
, &e
, 0);
2359 if (e
== str
|| *e
|| encap_limit
> 255) {
2364 nla_put_u8(nlm
, IFLA_IPTUN_ENCAP_LIMIT
, encap_limit
);
2365 tun_flags
&= ~IP6_TNL_F_IGN_ENCAP_LIMIT
;
2369 #ifdef IFLA_IPTUN_FMR_MAX
2370 if ((cur
= tb_data
[IPIP6_DATA_FMRS
])) {
2371 struct blob_attr
*rcur
;
2372 unsigned rrem
, fmrcnt
= 0;
2373 struct nlattr
*fmrs
= nla_nest_start(nlm
, IFLA_IPTUN_FMRS
);
2380 blobmsg_for_each_attr(rcur
, cur
, rrem
) {
2381 struct blob_attr
*tb_fmr
[__FMR_DATA_ATTR_MAX
], *tb_cur
;
2382 struct in6_addr ip6prefix
;
2383 struct in_addr ip4prefix
;
2384 unsigned ip4len
, ip6len
, ealen
, offset
;
2386 blobmsg_parse(fmr_data_attr_list
.params
, __FMR_DATA_ATTR_MAX
, tb_fmr
,
2387 blobmsg_data(rcur
), blobmsg_len(rcur
));
2389 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX6
]) ||
2390 !parse_ip_and_netmask(AF_INET6
,
2391 blobmsg_data(tb_cur
), &ip6prefix
,
2397 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX4
]) ||
2398 !parse_ip_and_netmask(AF_INET
,
2399 blobmsg_data(tb_cur
), &ip4prefix
,
2405 if (!(tb_cur
= tb_fmr
[FMR_DATA_EALEN
])) {
2409 ealen
= blobmsg_get_u32(tb_cur
);
2411 if (!(tb_cur
= tb_fmr
[FMR_DATA_OFFSET
])) {
2415 offset
= blobmsg_get_u32(tb_cur
);
2417 struct nlattr
*rule
= nla_nest_start(nlm
, ++fmrcnt
);
2423 nla_put(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX
, sizeof(ip6prefix
), &ip6prefix
);
2424 nla_put(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX
, sizeof(ip4prefix
), &ip4prefix
);
2425 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX_LEN
, ip6len
);
2426 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX_LEN
, ip4len
);
2427 nla_put_u8(nlm
, IFLA_IPTUN_FMR_EA_LEN
, ealen
);
2428 nla_put_u8(nlm
, IFLA_IPTUN_FMR_OFFSET
, offset
);
2430 nla_nest_end(nlm
, rule
);
2433 nla_nest_end(nlm
, fmrs
);
2437 nla_put_u32(nlm
, IFLA_IPTUN_FLAGS
, tun_flags
);
2440 nla_nest_end(nlm
, infodata
);
2441 nla_nest_end(nlm
, linkinfo
);
2443 return system_rtnl_call(nlm
);
2451 #ifdef IFLA_IPTUN_MAX
2452 #define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
2453 static int system_add_gre_tunnel(const char *name
, const char *kind
,
2454 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
2457 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
2458 struct blob_attr
*cur
;
2459 uint32_t ikey
= 0, okey
= 0, flags
= 0, flowinfo
= 0;
2460 uint16_t iflags
= 0, oflags
= 0;
2462 int ret
= 0, ttl
= 0;
2464 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2468 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2469 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2471 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2477 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
2478 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2485 nla_put_u32(nlm
, IFLA_GRE_LINK
, link
);
2487 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2488 ttl
= blobmsg_get_u32(cur
);
2490 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
2491 char *str
= blobmsg_get_string(cur
);
2492 if (strcmp(str
, "inherit")) {
2495 if (!system_tos_aton(str
, &uval
)) {
2501 flowinfo
|= htonl(uval
<< 20) & IP6_FLOWINFO_TCLASS
;
2506 flags
|= IP6_TNL_F_USE_ORIG_TCLASS
;
2512 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2513 struct blob_attr
*tb_data
[__GRE_DATA_ATTR_MAX
];
2515 blobmsg_parse(gre_data_attr_list
.params
, __GRE_DATA_ATTR_MAX
, tb_data
,
2516 blobmsg_data(cur
), blobmsg_len(cur
));
2518 if ((cur
= tb_data
[GRE_DATA_IKEY
])) {
2519 if ((ikey
= blobmsg_get_u32(cur
)))
2523 if ((cur
= tb_data
[GRE_DATA_OKEY
])) {
2524 if ((okey
= blobmsg_get_u32(cur
)))
2528 if ((cur
= tb_data
[GRE_DATA_ICSUM
])) {
2529 if (blobmsg_get_bool(cur
))
2533 if ((cur
= tb_data
[GRE_DATA_OCSUM
])) {
2534 if (blobmsg_get_bool(cur
))
2538 if ((cur
= tb_data
[GRE_DATA_ISEQNO
])) {
2539 if (blobmsg_get_bool(cur
))
2543 if ((cur
= tb_data
[GRE_DATA_OSEQNO
])) {
2544 if (blobmsg_get_bool(cur
))
2550 struct in6_addr in6buf
;
2551 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2552 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2556 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(in6buf
), &in6buf
);
2559 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2560 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2564 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(in6buf
), &in6buf
);
2566 nla_put_u8(nlm
, IFLA_GRE_ENCAP_LIMIT
, 4);
2569 nla_put_u32(nlm
, IFLA_GRE_FLOWINFO
, flowinfo
);
2572 nla_put_u32(nlm
, IFLA_GRE_FLAGS
, flags
);
2577 struct in_addr inbuf
;
2580 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2581 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2585 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(inbuf
), &inbuf
);
2588 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2589 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2593 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(inbuf
), &inbuf
);
2595 if (IN_MULTICAST(ntohl(inbuf
.s_addr
))) {
2597 okey
= inbuf
.s_addr
;
2602 ikey
= inbuf
.s_addr
;
2608 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
2609 set_df
= blobmsg_get_bool(cur
);
2612 /* ttl != 0 and nopmtudisc are incompatible */
2620 nla_put_u8(nlm
, IFLA_GRE_PMTUDISC
, set_df
? 1 : 0);
2622 nla_put_u8(nlm
, IFLA_GRE_TOS
, tos
);
2626 nla_put_u8(nlm
, IFLA_GRE_TTL
, ttl
);
2629 nla_put_u16(nlm
, IFLA_GRE_OFLAGS
, oflags
);
2632 nla_put_u16(nlm
, IFLA_GRE_IFLAGS
, iflags
);
2635 nla_put_u32(nlm
, IFLA_GRE_OKEY
, htonl(okey
));
2638 nla_put_u32(nlm
, IFLA_GRE_IKEY
, htonl(ikey
));
2640 nla_nest_end(nlm
, infodata
);
2641 nla_nest_end(nlm
, linkinfo
);
2643 return system_rtnl_call(nlm
);
2652 static int system_add_vti_tunnel(const char *name
, const char *kind
,
2653 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
2656 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
2657 struct blob_attr
*cur
;
2660 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2664 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2665 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2667 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2673 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
2674 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2681 nla_put_u32(nlm
, IFLA_VTI_LINK
, link
);
2684 struct in6_addr in6buf
;
2685 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2686 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2690 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(in6buf
), &in6buf
);
2693 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2694 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2698 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(in6buf
), &in6buf
);
2702 struct in_addr inbuf
;
2704 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2705 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2709 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(inbuf
), &inbuf
);
2712 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2713 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2717 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(inbuf
), &inbuf
);
2722 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2723 struct blob_attr
*tb_data
[__VTI_DATA_ATTR_MAX
];
2724 uint32_t ikey
= 0, okey
= 0;
2726 blobmsg_parse(vti_data_attr_list
.params
, __VTI_DATA_ATTR_MAX
, tb_data
,
2727 blobmsg_data(cur
), blobmsg_len(cur
));
2729 if ((cur
= tb_data
[VTI_DATA_IKEY
])) {
2730 if ((ikey
= blobmsg_get_u32(cur
)))
2731 nla_put_u32(nlm
, IFLA_VTI_IKEY
, htonl(ikey
));
2734 if ((cur
= tb_data
[VTI_DATA_OKEY
])) {
2735 if ((okey
= blobmsg_get_u32(cur
)))
2736 nla_put_u32(nlm
, IFLA_VTI_OKEY
, htonl(okey
));
2740 nla_nest_end(nlm
, infodata
);
2741 nla_nest_end(nlm
, linkinfo
);
2743 return system_rtnl_call(nlm
);
2751 #ifdef IFLA_VXLAN_MAX
2752 static int system_add_vxlan(const char *name
, const unsigned int link
, struct blob_attr
**tb
, bool v6
)
2754 struct blob_attr
*tb_data
[__VXLAN_DATA_ATTR_MAX
];
2756 struct nlattr
*linkinfo
, *data
;
2757 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
2758 struct blob_attr
*cur
;
2761 if ((cur
= tb
[TUNNEL_ATTR_DATA
]))
2762 blobmsg_parse(vxlan_data_attr_list
.params
, __VXLAN_DATA_ATTR_MAX
, tb_data
,
2763 blobmsg_data(cur
), blobmsg_len(cur
));
2767 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
2772 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
2774 nla_put_string(msg
, IFLA_IFNAME
, name
);
2776 if ((cur
= tb_data
[VXLAN_DATA_ATTR_MACADDR
])) {
2777 struct ether_addr
*ea
= ether_aton(blobmsg_get_string(cur
));
2783 nla_put(msg
, IFLA_ADDRESS
, ETH_ALEN
, ea
);
2786 if ((cur
= tb
[TUNNEL_ATTR_MTU
])) {
2787 uint32_t mtu
= blobmsg_get_u32(cur
);
2788 nla_put_u32(msg
, IFLA_MTU
, mtu
);
2791 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
))) {
2796 nla_put_string(msg
, IFLA_INFO_KIND
, "vxlan");
2798 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
))) {
2804 nla_put_u32(msg
, IFLA_VXLAN_LINK
, link
);
2806 if ((cur
= tb_data
[VXLAN_DATA_ATTR_ID
])) {
2807 uint32_t id
= blobmsg_get_u32(cur
);
2808 if (id
>= (1u << 24) - 1) {
2813 nla_put_u32(msg
, IFLA_VXLAN_ID
, id
);
2817 struct in6_addr in6buf
;
2818 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2819 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2823 nla_put(msg
, IFLA_VXLAN_LOCAL6
, sizeof(in6buf
), &in6buf
);
2826 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2827 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2831 nla_put(msg
, IFLA_VXLAN_GROUP6
, sizeof(in6buf
), &in6buf
);
2834 struct in_addr inbuf
;
2836 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2837 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2841 nla_put(msg
, IFLA_VXLAN_LOCAL
, sizeof(inbuf
), &inbuf
);
2844 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2845 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2849 nla_put(msg
, IFLA_VXLAN_GROUP
, sizeof(inbuf
), &inbuf
);
2853 uint32_t port
= 4789;
2854 if ((cur
= tb_data
[VXLAN_DATA_ATTR_PORT
])) {
2855 port
= blobmsg_get_u32(cur
);
2856 if (port
< 1 || port
> 65535) {
2861 nla_put_u16(msg
, IFLA_VXLAN_PORT
, htons(port
));
2863 if ((cur
= tb_data
[VXLAN_DATA_ATTR_RXCSUM
])) {
2864 bool rxcsum
= blobmsg_get_bool(cur
);
2865 nla_put_u8(msg
, IFLA_VXLAN_UDP_ZERO_CSUM6_RX
, !rxcsum
);
2868 if ((cur
= tb_data
[VXLAN_DATA_ATTR_TXCSUM
])) {
2869 bool txcsum
= blobmsg_get_bool(cur
);
2870 nla_put_u8(msg
, IFLA_VXLAN_UDP_CSUM
, txcsum
);
2871 nla_put_u8(msg
, IFLA_VXLAN_UDP_ZERO_CSUM6_TX
, !txcsum
);
2874 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
2875 char *str
= blobmsg_get_string(cur
);
2878 if (strcmp(str
, "inherit")) {
2879 if (!system_tos_aton(str
, &tos
)) {
2885 nla_put_u8(msg
, IFLA_VXLAN_TOS
, tos
);
2888 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
2889 uint32_t ttl
= blobmsg_get_u32(cur
);
2890 if (ttl
< 1 || ttl
> 255) {
2895 nla_put_u8(msg
, IFLA_VXLAN_TTL
, ttl
);
2898 nla_nest_end(msg
, data
);
2899 nla_nest_end(msg
, linkinfo
);
2901 ret
= system_rtnl_call(msg
);
2903 D(SYSTEM
, "Error adding vxlan '%s': %d\n", name
, ret
);
2913 static int system_add_sit_tunnel(const char *name
, const unsigned int link
, struct blob_attr
**tb
)
2915 struct blob_attr
*cur
;
2918 if (system_add_proto_tunnel(name
, IPPROTO_IPV6
, link
, tb
) < 0)
2922 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
2923 struct blob_attr
*tb_data
[__SIXRD_DATA_ATTR_MAX
];
2925 struct ip_tunnel_6rd p6
;
2927 blobmsg_parse(sixrd_data_attr_list
.params
, __SIXRD_DATA_ATTR_MAX
, tb_data
,
2928 blobmsg_data(cur
), blobmsg_len(cur
));
2930 memset(&p6
, 0, sizeof(p6
));
2932 if ((cur
= tb_data
[SIXRD_DATA_PREFIX
])) {
2933 if (!parse_ip_and_netmask(AF_INET6
, blobmsg_data(cur
),
2934 &p6
.prefix
, &mask
) || mask
> 128) {
2939 p6
.prefixlen
= mask
;
2942 if ((cur
= tb_data
[SIXRD_DATA_RELAY_PREFIX
])) {
2943 if (!parse_ip_and_netmask(AF_INET
, blobmsg_data(cur
),
2944 &p6
.relay_prefix
, &mask
) || mask
> 32) {
2949 p6
.relay_prefixlen
= mask
;
2952 if (tunnel_ioctl(name
, SIOCADD6RD
, &p6
) < 0) {
2962 __system_del_ip_tunnel(name
, tb
);
2966 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
, const unsigned int link
, struct blob_attr
**tb
)
2968 struct blob_attr
*cur
;
2970 struct ip_tunnel_parm p
= {
2979 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
]) &&
2980 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.saddr
) < 1)
2983 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
]) &&
2984 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.daddr
) < 1)
2987 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
2988 set_df
= blobmsg_get_bool(cur
);
2990 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2991 p
.iph
.ttl
= blobmsg_get_u32(cur
);
2993 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
2994 char *str
= blobmsg_get_string(cur
);
2995 if (strcmp(str
, "inherit")) {
2998 if (!system_tos_aton(str
, &uval
))
3006 p
.iph
.frag_off
= set_df
? htons(IP_DF
) : 0;
3007 /* ttl !=0 and nopmtudisc are incompatible */
3008 if (p
.iph
.ttl
&& p
.iph
.frag_off
== 0)
3011 strncpy(p
.name
, name
, sizeof(p
.name
) - 1);
3013 switch (p
.iph
.protocol
) {
3015 return tunnel_ioctl("tunl0", SIOCADDTUNNEL
, &p
);
3017 return tunnel_ioctl("sit0", SIOCADDTUNNEL
, &p
);
3024 static int __system_del_ip_tunnel(const char *name
, struct blob_attr
**tb
)
3026 struct blob_attr
*cur
;
3029 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
3031 str
= blobmsg_data(cur
);
3033 if (!strcmp(str
, "greip") || !strcmp(str
, "gretapip") ||
3034 !strcmp(str
, "greip6") || !strcmp(str
, "gretapip6") ||
3035 !strcmp(str
, "vtiip") || !strcmp(str
, "vtiip6") ||
3036 !strcmp(str
, "vxlan") || !strcmp(str
, "vxlan6"))
3037 return system_link_del(name
);
3039 return tunnel_ioctl(name
, SIOCDELTUNNEL
, NULL
);
3042 int system_del_ip_tunnel(const char *name
, struct blob_attr
*attr
)
3044 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
3046 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
3047 blob_data(attr
), blob_len(attr
));
3049 return __system_del_ip_tunnel(name
, tb
);
3052 int system_update_ipv6_mtu(struct device
*dev
, int mtu
)
3058 snprintf(buf
, sizeof(buf
), "/proc/sys/net/ipv6/conf/%s/mtu",
3061 fd
= open(buf
, O_RDWR
);
3066 ssize_t len
= read(fd
, buf
, sizeof(buf
) - 1);
3073 if (write(fd
, buf
, snprintf(buf
, sizeof(buf
), "%i", mtu
)) > 0)
3082 int system_add_ip_tunnel(const char *name
, struct blob_attr
*attr
)
3084 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
3085 struct blob_attr
*cur
;
3088 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
3089 blob_data(attr
), blob_len(attr
));
3091 __system_del_ip_tunnel(name
, tb
);
3093 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
3095 str
= blobmsg_data(cur
);
3097 unsigned int ttl
= 0;
3098 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
3099 ttl
= blobmsg_get_u32(cur
);
3104 unsigned int link
= 0;
3105 if ((cur
= tb
[TUNNEL_ATTR_LINK
])) {
3106 struct interface
*iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
3110 if (iface
->l3_dev
.dev
)
3111 link
= iface
->l3_dev
.dev
->ifindex
;
3114 if (!strcmp(str
, "sit"))
3115 return system_add_sit_tunnel(name
, link
, tb
);
3116 #ifdef IFLA_IPTUN_MAX
3117 else if (!strcmp(str
, "ipip6")) {
3118 return system_add_ip6_tunnel(name
, link
, tb
);
3119 } else if (!strcmp(str
, "greip")) {
3120 return system_add_gre_tunnel(name
, "gre", link
, tb
, false);
3121 } else if (!strcmp(str
, "gretapip")) {
3122 return system_add_gre_tunnel(name
, "gretap", link
, tb
, false);
3123 } else if (!strcmp(str
, "greip6")) {
3124 return system_add_gre_tunnel(name
, "ip6gre", link
, tb
, true);
3125 } else if (!strcmp(str
, "gretapip6")) {
3126 return system_add_gre_tunnel(name
, "ip6gretap", link
, tb
, true);
3128 } else if (!strcmp(str
, "vtiip")) {
3129 return system_add_vti_tunnel(name
, "vti", link
, tb
, false);
3130 } else if (!strcmp(str
, "vtiip6")) {
3131 return system_add_vti_tunnel(name
, "vti6", link
, tb
, true);
3133 #ifdef IFLA_VXLAN_MAX
3134 } else if(!strcmp(str
, "vxlan")) {
3135 return system_add_vxlan(name
, link
, tb
, false);
3136 } else if(!strcmp(str
, "vxlan6")) {
3137 return system_add_vxlan(name
, link
, tb
, true);
3140 } else if (!strcmp(str
, "ipip")) {
3141 return system_add_proto_tunnel(name
, IPPROTO_IPIP
, link
, tb
);