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>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2
10 * as published by the Free Software Foundation
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
19 #include <sys/socket.h>
20 #include <sys/ioctl.h>
22 #include <sys/syscall.h>
25 #include <net/if_arp.h>
27 #include <arpa/inet.h>
28 #include <netinet/in.h>
30 #include <linux/rtnetlink.h>
31 #include <linux/sockios.h>
33 #include <linux/if_addr.h>
34 #include <linux/if_link.h>
35 #include <linux/if_vlan.h>
36 #include <linux/if_bridge.h>
37 #include <linux/if_tunnel.h>
38 #include <linux/ip6_tunnel.h>
39 #include <linux/ethtool.h>
40 #include <linux/fib_rules.h>
41 #include <linux/version.h>
43 #ifndef RTN_FAILED_POLICY
44 #define RTN_FAILED_POLICY 12
47 #ifndef IFA_F_NOPREFIXROUTE
48 #define IFA_F_NOPREFIXROUTE 0x200
52 #define IFA_FLAGS (IFA_MULTICAST + 1)
62 #include <netlink/msg.h>
63 #include <netlink/attr.h>
64 #include <netlink/socket.h>
65 #include <libubox/uloop.h>
72 struct uloop_fd uloop
;
77 static int sock_ioctl
= -1;
78 static struct nl_sock
*sock_rtnl
= NULL
;
80 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
);
81 static void handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
);
83 static char dev_buf
[256];
86 handler_nl_event(struct uloop_fd
*u
, unsigned int events
)
88 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
90 socklen_t errlen
= sizeof(err
);
93 nl_recvmsgs_default(ev
->sock
);
97 if (getsockopt(u
->fd
, SOL_SOCKET
, SO_ERROR
, (void *)&err
, &errlen
))
102 // Increase rx buffer size on netlink socket
104 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
107 // Request full dump since some info got dropped
108 struct rtgenmsg msg
= { .rtgen_family
= AF_UNSPEC
};
109 nl_send_simple(ev
->sock
, RTM_GETLINK
, NLM_F_DUMP
, &msg
, sizeof(msg
));
119 uloop_fd_delete(&ev
->uloop
);
123 static struct nl_sock
*
124 create_socket(int protocol
, int groups
)
126 struct nl_sock
*sock
;
128 sock
= nl_socket_alloc();
133 nl_join_groups(sock
, groups
);
135 if (nl_connect(sock
, protocol
))
142 create_raw_event_socket(struct event_socket
*ev
, int protocol
, int groups
,
143 uloop_fd_handler cb
, int flags
)
145 ev
->sock
= create_socket(protocol
, groups
);
149 ev
->uloop
.fd
= nl_socket_get_fd(ev
->sock
);
151 if (uloop_fd_add(&ev
->uloop
, ULOOP_READ
|flags
))
158 create_event_socket(struct event_socket
*ev
, int protocol
,
159 int (*cb
)(struct nl_msg
*msg
, void *arg
))
161 if (!create_raw_event_socket(ev
, protocol
, 0, handler_nl_event
, ULOOP_ERROR_CB
))
164 // Install the valid custom callback handler
165 nl_socket_modify_cb(ev
->sock
, NL_CB_VALID
, NL_CB_CUSTOM
, cb
, NULL
);
167 // Disable sequence number checking on event sockets
168 nl_socket_disable_seq_check(ev
->sock
);
170 // Increase rx buffer size to 65K on event sockets
172 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
179 system_rtn_aton(const char *src
, unsigned int *dst
)
184 if (!strcmp(src
, "local"))
186 else if (!strcmp(src
, "nat"))
188 else if (!strcmp(src
, "broadcast"))
190 else if (!strcmp(src
, "anycast"))
192 else if (!strcmp(src
, "multicast"))
194 else if (!strcmp(src
, "prohibit"))
196 else if (!strcmp(src
, "unreachable"))
198 else if (!strcmp(src
, "blackhole"))
200 else if (!strcmp(src
, "xresolve"))
202 else if (!strcmp(src
, "unicast"))
204 else if (!strcmp(src
, "throw"))
206 else if (!strcmp(src
, "failed_policy"))
207 n
= RTN_FAILED_POLICY
;
209 n
= strtoul(src
, &e
, 0);
210 if (!e
|| *e
|| e
== src
|| n
> 255)
219 system_tos_aton(const char *src
, unsigned *dst
)
223 *dst
= strtoul(src
, &e
, 16);
224 if (e
== src
|| *e
|| *dst
> 255)
230 int system_init(void)
232 static struct event_socket rtnl_event
;
233 static struct event_socket hotplug_event
;
235 sock_ioctl
= socket(AF_LOCAL
, SOCK_DGRAM
, 0);
236 system_fd_set_cloexec(sock_ioctl
);
238 // Prepare socket for routing / address control
239 sock_rtnl
= create_socket(NETLINK_ROUTE
, 0);
243 if (!create_event_socket(&rtnl_event
, NETLINK_ROUTE
, cb_rtnl_event
))
246 if (!create_raw_event_socket(&hotplug_event
, NETLINK_KOBJECT_UEVENT
, 1,
247 handle_hotplug_event
, 0))
250 // Receive network link events form kernel
251 nl_socket_add_membership(rtnl_event
.sock
, RTNLGRP_LINK
);
256 static void system_set_sysctl(const char *path
, const char *val
)
260 fd
= open(path
, O_WRONLY
);
264 if (write(fd
, val
, strlen(val
))) {}
268 static void system_set_dev_sysctl(const char *path
, const char *device
, const char *val
)
270 snprintf(dev_buf
, sizeof(dev_buf
), path
, device
);
271 system_set_sysctl(dev_buf
, val
);
274 static void system_set_disable_ipv6(struct device
*dev
, const char *val
)
276 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6", dev
->ifname
, val
);
279 static void system_set_rpfilter(struct device
*dev
, const char *val
)
281 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/rp_filter", dev
->ifname
, val
);
284 static void system_set_acceptlocal(struct device
*dev
, const char *val
)
286 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/accept_local", dev
->ifname
, val
);
289 static void system_set_igmpversion(struct device
*dev
, const char *val
)
291 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/force_igmp_version", dev
->ifname
, val
);
294 static void system_set_mldversion(struct device
*dev
, const char *val
)
296 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/force_mld_version", dev
->ifname
, val
);
299 static void system_set_neigh4reachabletime(struct device
*dev
, const char *val
)
301 system_set_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/base_reachable_time_ms", dev
->ifname
, val
);
304 static void system_set_neigh6reachabletime(struct device
*dev
, const char *val
)
306 system_set_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/base_reachable_time_ms", dev
->ifname
, val
);
309 static void system_set_dadtransmits(struct device
*dev
, const char *val
)
311 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/dad_transmits", dev
->ifname
, val
);
314 static void system_bridge_set_multicast_to_unicast(struct device
*dev
, const char *val
)
316 system_set_dev_sysctl("/sys/class/net/%s/brport/multicast_to_unicast", dev
->ifname
, val
);
319 static void system_bridge_set_hairpin_mode(struct device
*dev
, const char *val
)
321 system_set_dev_sysctl("/sys/class/net/%s/brport/hairpin_mode", dev
->ifname
, val
);
324 static void system_bridge_set_multicast_router(struct device
*dev
, const char *val
, bool bridge
)
326 system_set_dev_sysctl(bridge
? "/sys/class/net/%s/bridge/multicast_router" :
327 "/sys/class/net/%s/brport/multicast_router",
331 static void system_bridge_set_robustness(struct device
*dev
, const char *val
)
333 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_startup_query_count",
335 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_last_member_count",
339 static void system_bridge_set_query_interval(struct device
*dev
, const char *val
)
341 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_query_interval",
345 static void system_bridge_set_query_response_interval(struct device
*dev
, const char *val
)
347 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_query_response_interval",
351 static void system_bridge_set_last_member_interval(struct device
*dev
, const char *val
)
353 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_last_member_interval",
357 static void system_bridge_set_membership_interval(struct device
*dev
, const char *val
)
359 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_membership_interval",
363 static void system_bridge_set_other_querier_timeout(struct device
*dev
, const char *val
)
365 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier_interval",
369 static void system_bridge_set_startup_query_interval(struct device
*dev
, const char *val
)
371 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_startup_query_interval",
375 static void system_bridge_set_learning(struct device
*dev
, const char *val
)
377 system_set_dev_sysctl("/sys/class/net/%s/brport/learning", dev
->ifname
, val
);
380 static void system_bridge_set_unicast_flood(struct device
*dev
, const char *val
)
382 system_set_dev_sysctl("/sys/class/net/%s/brport/unicast_flood", dev
->ifname
, val
);
385 static int system_get_sysctl(const char *path
, char *buf
, const size_t buf_sz
)
387 int fd
= -1, ret
= -1;
389 fd
= open(path
, O_RDONLY
);
393 ssize_t len
= read(fd
, buf
, buf_sz
- 1);
407 system_get_dev_sysctl(const char *path
, const char *device
, char *buf
, const size_t buf_sz
)
409 snprintf(dev_buf
, sizeof(dev_buf
), path
, device
);
410 return system_get_sysctl(dev_buf
, buf
, buf_sz
);
413 static int system_get_disable_ipv6(struct device
*dev
, char *buf
, const size_t buf_sz
)
415 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6",
416 dev
->ifname
, buf
, buf_sz
);
419 static int system_get_rpfilter(struct device
*dev
, char *buf
, const size_t buf_sz
)
421 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/rp_filter",
422 dev
->ifname
, buf
, buf_sz
);
425 static int system_get_acceptlocal(struct device
*dev
, char *buf
, const size_t buf_sz
)
427 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/accept_local",
428 dev
->ifname
, buf
, buf_sz
);
431 static int system_get_igmpversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
433 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/force_igmp_version",
434 dev
->ifname
, buf
, buf_sz
);
437 static int system_get_mldversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
439 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/force_mld_version",
440 dev
->ifname
, buf
, buf_sz
);
443 static int system_get_neigh4reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
445 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/base_reachable_time_ms",
446 dev
->ifname
, buf
, buf_sz
);
449 static int system_get_neigh6reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
451 return system_get_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/base_reachable_time_ms",
452 dev
->ifname
, buf
, buf_sz
);
455 static int system_get_dadtransmits(struct device
*dev
, char *buf
, const size_t buf_sz
)
457 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/dad_transmits",
458 dev
->ifname
, buf
, buf_sz
);
461 // Evaluate netlink messages
462 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
)
464 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
465 struct nlattr
*nla
[__IFLA_MAX
];
469 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
472 nlmsg_parse(nh
, sizeof(struct ifinfomsg
), nla
, __IFLA_MAX
- 1, NULL
);
473 if (!nla
[IFLA_IFNAME
])
476 struct device
*dev
= device_get(nla_data(nla
[IFLA_IFNAME
]), false);
480 if (!system_get_dev_sysctl("/sys/class/net/%s/carrier", dev
->ifname
, buf
, sizeof(buf
)))
481 link_state
= strtoul(buf
, NULL
, 0);
483 device_set_link(dev
, link_state
? true : false);
490 handle_hotplug_msg(char *data
, int size
)
492 const char *subsystem
= NULL
, *interface
= NULL
;
493 char *cur
, *end
, *sep
;
498 if (!strncmp(data
, "add@", 4))
500 else if (!strncmp(data
, "remove@", 7))
505 skip
= strlen(data
) + 1;
508 for (cur
= data
+ skip
; cur
< end
; cur
+= skip
) {
509 skip
= strlen(cur
) + 1;
511 sep
= strchr(cur
, '=');
516 if (!strcmp(cur
, "INTERFACE"))
518 else if (!strcmp(cur
, "SUBSYSTEM")) {
520 if (strcmp(subsystem
, "net") != 0)
523 if (subsystem
&& interface
)
529 dev
= device_get(interface
, false);
533 if (dev
->type
!= &simple_device_type
)
536 if (add
&& system_if_force_external(dev
->ifname
))
539 device_set_present(dev
, add
);
543 handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
)
545 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
546 struct sockaddr_nl nla
;
547 unsigned char *buf
= NULL
;
550 while ((size
= nl_recv(ev
->sock
, &nla
, &buf
, NULL
)) > 0) {
552 handle_hotplug_msg((char *) buf
, size
);
558 static int system_rtnl_call(struct nl_msg
*msg
)
562 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
568 return nl_wait_for_ack(sock_rtnl
);
571 int system_bridge_delbr(struct device
*bridge
)
573 return ioctl(sock_ioctl
, SIOCBRDELBR
, bridge
->ifname
);
576 static int system_bridge_if(const char *bridge
, struct device
*dev
, int cmd
, void *data
)
580 memset(&ifr
, 0, sizeof(ifr
));
582 ifr
.ifr_ifindex
= dev
->ifindex
;
585 strncpy(ifr
.ifr_name
, bridge
, sizeof(ifr
.ifr_name
));
586 return ioctl(sock_ioctl
, cmd
, &ifr
);
589 static bool system_is_bridge(const char *name
, char *buf
, int buflen
)
593 snprintf(buf
, buflen
, "/sys/devices/virtual/net/%s/bridge", name
);
594 if (stat(buf
, &st
) < 0)
600 static char *system_get_bridge(const char *name
, char *buf
, int buflen
)
606 snprintf(buf
, buflen
, "/sys/devices/virtual/net/*/brif/%s/bridge", name
);
607 if (glob(buf
, GLOB_NOSORT
, NULL
, &gl
) < 0)
611 len
= readlink(gl
.gl_pathv
[0], buf
, buflen
);
619 path
= strrchr(buf
, '/');
627 system_bridge_set_wireless(struct device
*bridge
, struct device
*dev
)
629 bool mcast_to_ucast
= dev
->wireless_ap
;
632 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
&&
633 !bridge
->settings
.multicast_to_unicast
)
634 mcast_to_ucast
= false;
636 if (!mcast_to_ucast
|| dev
->wireless_isolate
)
639 system_bridge_set_multicast_to_unicast(dev
, mcast_to_ucast
? "1" : "0");
640 system_bridge_set_hairpin_mode(dev
, hairpin
? "1" : "0");
643 int system_bridge_addif(struct device
*bridge
, struct device
*dev
)
649 oldbr
= system_get_bridge(dev
->ifname
, dev_buf
, sizeof(dev_buf
));
650 if (!oldbr
|| strcmp(oldbr
, bridge
->ifname
) != 0)
651 ret
= system_bridge_if(bridge
->ifname
, dev
, SIOCBRADDIF
, NULL
);
654 system_bridge_set_wireless(bridge
, dev
);
656 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
657 snprintf(buf
, sizeof(buf
), "%i", dev
->settings
.multicast_router
);
658 system_bridge_set_multicast_router(dev
, buf
, false);
661 if (dev
->settings
.flags
& DEV_OPT_LEARNING
&&
662 !dev
->settings
.learning
)
663 system_bridge_set_learning(dev
, "0");
665 if (dev
->settings
.flags
& DEV_OPT_UNICAST_FLOOD
&&
666 !dev
->settings
.unicast_flood
)
667 system_bridge_set_unicast_flood(dev
, "0");
672 int system_bridge_delif(struct device
*bridge
, struct device
*dev
)
674 return system_bridge_if(bridge
->ifname
, dev
, SIOCBRDELIF
, NULL
);
677 int system_if_resolve(struct device
*dev
)
680 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
681 if (!ioctl(sock_ioctl
, SIOCGIFINDEX
, &ifr
))
682 return ifr
.ifr_ifindex
;
687 static int system_if_flags(const char *ifname
, unsigned add
, unsigned rem
)
691 memset(&ifr
, 0, sizeof(ifr
));
692 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
));
693 ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
);
694 ifr
.ifr_flags
|= add
;
695 ifr
.ifr_flags
&= ~rem
;
696 return ioctl(sock_ioctl
, SIOCSIFFLAGS
, &ifr
);
708 static bool check_ifaddr(struct nlmsghdr
*hdr
, int ifindex
)
710 struct ifaddrmsg
*ifa
= NLMSG_DATA(hdr
);
712 return ifa
->ifa_index
== ifindex
;
715 static bool check_route(struct nlmsghdr
*hdr
, int ifindex
)
717 struct rtmsg
*r
= NLMSG_DATA(hdr
);
718 struct nlattr
*tb
[__RTA_MAX
];
720 if (r
->rtm_protocol
== RTPROT_KERNEL
&&
721 r
->rtm_family
== AF_INET6
)
724 nlmsg_parse(hdr
, sizeof(struct rtmsg
), tb
, __RTA_MAX
- 1, NULL
);
728 return *(int *)RTA_DATA(tb
[RTA_OIF
]) == ifindex
;
731 static bool check_rule(struct nlmsghdr
*hdr
, int ifindex
)
736 static int cb_clear_event(struct nl_msg
*msg
, void *arg
)
738 struct clear_data
*clr
= arg
;
739 struct nlmsghdr
*hdr
= nlmsg_hdr(msg
);
740 bool (*cb
)(struct nlmsghdr
*, int ifindex
);
746 if (hdr
->nlmsg_type
!= RTM_NEWADDR
)
753 if (hdr
->nlmsg_type
!= RTM_NEWROUTE
)
760 if (hdr
->nlmsg_type
!= RTM_NEWRULE
)
769 if (!cb(hdr
, clr
->dev
? clr
->dev
->ifindex
: 0))
772 if (type
== RTM_DELRULE
)
773 D(SYSTEM
, "Remove a rule\n");
775 D(SYSTEM
, "Remove %s from device %s\n",
776 type
== RTM_DELADDR
? "an address" : "a route",
778 memcpy(nlmsg_hdr(clr
->msg
), hdr
, hdr
->nlmsg_len
);
779 hdr
= nlmsg_hdr(clr
->msg
);
780 hdr
->nlmsg_type
= type
;
781 hdr
->nlmsg_flags
= NLM_F_REQUEST
;
783 nl_socket_disable_auto_ack(sock_rtnl
);
784 nl_send_auto_complete(sock_rtnl
, clr
->msg
);
785 nl_socket_enable_auto_ack(sock_rtnl
);
791 cb_finish_event(struct nl_msg
*msg
, void *arg
)
799 error_handler(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
802 *pending
= err
->error
;
807 system_if_clear_entries(struct device
*dev
, int type
, int af
)
809 struct clear_data clr
;
810 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
813 .rtm_flags
= RTM_F_CLONED
,
815 int flags
= NLM_F_DUMP
;
824 clr
.size
= sizeof(struct rtgenmsg
);
827 clr
.size
= sizeof(struct rtmsg
);
836 clr
.msg
= nlmsg_alloc_simple(type
, flags
);
840 nlmsg_append(clr
.msg
, &rtm
, clr
.size
, 0);
841 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_clear_event
, &clr
);
842 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, cb_finish_event
, &pending
);
843 nl_cb_err(cb
, NL_CB_CUSTOM
, error_handler
, &pending
);
845 nl_send_auto_complete(sock_rtnl
, clr
.msg
);
847 nl_recvmsgs(sock_rtnl
, cb
);
855 * Clear bridge (membership) state and bring down device
857 void system_if_clear_state(struct device
*dev
)
859 static char buf
[256];
862 device_set_ifindex(dev
, system_if_resolve(dev
));
863 if (dev
->external
|| !dev
->ifindex
)
866 system_if_flags(dev
->ifname
, 0, IFF_UP
);
868 if (system_is_bridge(dev
->ifname
, buf
, sizeof(buf
))) {
869 D(SYSTEM
, "Delete existing bridge named '%s'\n", dev
->ifname
);
870 system_bridge_delbr(dev
);
874 bridge
= system_get_bridge(dev
->ifname
, buf
, sizeof(buf
));
876 D(SYSTEM
, "Remove device '%s' from bridge '%s'\n", dev
->ifname
, bridge
);
877 system_bridge_if(bridge
, dev
, SIOCBRDELIF
, NULL
);
880 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET
);
881 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET
);
882 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET6
);
883 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET6
);
884 system_set_disable_ipv6(dev
, "0");
887 static inline unsigned long
888 sec_to_jiffies(int val
)
890 return (unsigned long) val
* 100;
893 static void system_bridge_conf_multicast_deps(struct device
*bridge
,
894 struct bridge_config
*cfg
,
900 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
||
901 cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
||
902 cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
903 val
= cfg
->robustness
* cfg
->query_interval
+
904 cfg
->query_response_interval
;
906 snprintf(buf
, buf_len
, "%i", val
);
907 system_bridge_set_membership_interval(bridge
, buf
);
909 val
= cfg
->robustness
* cfg
->query_interval
+
910 cfg
->query_response_interval
/ 2;
912 snprintf(buf
, buf_len
, "%i", val
);
913 system_bridge_set_other_querier_timeout(bridge
, buf
);
916 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
917 val
= cfg
->query_interval
/ 4;
919 snprintf(buf
, buf_len
, "%i", val
);
920 system_bridge_set_startup_query_interval(bridge
, buf
);
924 static void system_bridge_conf_multicast(struct device
*bridge
,
925 struct bridge_config
*cfg
,
929 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_snooping",
930 bridge
->ifname
, cfg
->igmp_snoop
? "1" : "0");
932 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier",
933 bridge
->ifname
, cfg
->multicast_querier
? "1" : "0");
935 snprintf(buf
, buf_len
, "%i", cfg
->hash_max
);
936 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/hash_max",
937 bridge
->ifname
, buf
);
939 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
940 snprintf(buf
, buf_len
, "%i", bridge
->settings
.multicast_router
);
941 system_bridge_set_multicast_router(bridge
, buf
, true);
944 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
) {
945 snprintf(buf
, buf_len
, "%i", cfg
->robustness
);
946 system_bridge_set_robustness(bridge
, buf
);
949 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
950 snprintf(buf
, buf_len
, "%i", cfg
->query_interval
);
951 system_bridge_set_query_interval(bridge
, buf
);
954 if (cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
955 snprintf(buf
, buf_len
, "%i", cfg
->query_response_interval
);
956 system_bridge_set_query_response_interval(bridge
, buf
);
959 if (cfg
->flags
& BRIDGE_OPT_LAST_MEMBER_INTERVAL
) {
960 snprintf(buf
, buf_len
, "%i", cfg
->last_member_interval
);
961 system_bridge_set_last_member_interval(bridge
, buf
);
964 system_bridge_conf_multicast_deps(bridge
, cfg
, buf
, buf_len
);
967 int system_bridge_addbr(struct device
*bridge
, struct bridge_config
*cfg
)
970 unsigned long args
[4] = {};
972 if (ioctl(sock_ioctl
, SIOCBRADDBR
, bridge
->ifname
) < 0)
975 args
[0] = BRCTL_SET_BRIDGE_STP_STATE
;
976 args
[1] = !!cfg
->stp
;
977 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
979 args
[0] = BRCTL_SET_BRIDGE_FORWARD_DELAY
;
980 args
[1] = sec_to_jiffies(cfg
->forward_delay
);
981 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
983 system_bridge_conf_multicast(bridge
, cfg
, buf
, sizeof(buf
));
985 args
[0] = BRCTL_SET_BRIDGE_PRIORITY
;
986 args
[1] = cfg
->priority
;
987 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
989 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
) {
990 args
[0] = BRCTL_SET_AGEING_TIME
;
991 args
[1] = sec_to_jiffies(cfg
->ageing_time
);
992 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
995 if (cfg
->flags
& BRIDGE_OPT_HELLO_TIME
) {
996 args
[0] = BRCTL_SET_BRIDGE_HELLO_TIME
;
997 args
[1] = sec_to_jiffies(cfg
->hello_time
);
998 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1001 if (cfg
->flags
& BRIDGE_OPT_MAX_AGE
) {
1002 args
[0] = BRCTL_SET_BRIDGE_MAX_AGE
;
1003 args
[1] = sec_to_jiffies(cfg
->max_age
);
1004 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
1010 int system_macvlan_add(struct device
*macvlan
, struct device
*dev
, struct macvlan_config
*cfg
)
1013 struct nlattr
*linkinfo
, *data
;
1014 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
1016 static const struct {
1018 enum macvlan_mode val
;
1020 { "private", MACVLAN_MODE_PRIVATE
},
1021 { "vepa", MACVLAN_MODE_VEPA
},
1022 { "bridge", MACVLAN_MODE_BRIDGE
},
1023 { "passthru", MACVLAN_MODE_PASSTHRU
},
1026 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1031 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1033 if (cfg
->flags
& MACVLAN_OPT_MACADDR
)
1034 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1035 nla_put_string(msg
, IFLA_IFNAME
, macvlan
->ifname
);
1036 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1038 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1039 goto nla_put_failure
;
1041 nla_put_string(msg
, IFLA_INFO_KIND
, "macvlan");
1043 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1044 goto nla_put_failure
;
1047 for (i
= 0; i
< ARRAY_SIZE(modes
); i
++) {
1048 if (strcmp(cfg
->mode
, modes
[i
].name
) != 0)
1051 nla_put_u32(msg
, IFLA_MACVLAN_MODE
, modes
[i
].val
);
1056 nla_nest_end(msg
, data
);
1057 nla_nest_end(msg
, linkinfo
);
1059 rv
= system_rtnl_call(msg
);
1061 D(SYSTEM
, "Error adding macvlan '%s' over '%s': %d\n", macvlan
->ifname
, dev
->ifname
, rv
);
1070 static int system_link_del(const char *ifname
)
1073 struct ifinfomsg iim
= {
1074 .ifi_family
= AF_UNSPEC
,
1078 msg
= nlmsg_alloc_simple(RTM_DELLINK
, NLM_F_REQUEST
);
1083 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1084 nla_put_string(msg
, IFLA_IFNAME
, ifname
);
1085 return system_rtnl_call(msg
);
1088 int system_macvlan_del(struct device
*macvlan
)
1090 return system_link_del(macvlan
->ifname
);
1093 static int system_vlan(struct device
*dev
, int id
)
1095 struct vlan_ioctl_args ifr
= {
1096 .cmd
= SET_VLAN_NAME_TYPE_CMD
,
1097 .u
.name_type
= VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
,
1100 ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
1103 ifr
.cmd
= DEL_VLAN_CMD
;
1106 ifr
.cmd
= ADD_VLAN_CMD
;
1109 strncpy(ifr
.device1
, dev
->ifname
, sizeof(ifr
.device1
));
1110 return ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
1113 int system_vlan_add(struct device
*dev
, int id
)
1115 return system_vlan(dev
, id
);
1118 int system_vlan_del(struct device
*dev
)
1120 return system_vlan(dev
, -1);
1123 int system_vlandev_add(struct device
*vlandev
, struct device
*dev
, struct vlandev_config
*cfg
)
1126 struct nlattr
*linkinfo
, *data
;
1127 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
};
1130 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1135 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1136 nla_put_string(msg
, IFLA_IFNAME
, vlandev
->ifname
);
1137 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1139 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1140 goto nla_put_failure
;
1142 nla_put_string(msg
, IFLA_INFO_KIND
, "vlan");
1144 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1145 goto nla_put_failure
;
1147 nla_put_u16(msg
, IFLA_VLAN_ID
, cfg
->vid
);
1149 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
1150 nla_put_u16(msg
, IFLA_VLAN_PROTOCOL
, htons(cfg
->proto
));
1152 if(cfg
->proto
== VLAN_PROTO_8021AD
)
1153 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
);
1156 nla_nest_end(msg
, data
);
1157 nla_nest_end(msg
, linkinfo
);
1159 rv
= system_rtnl_call(msg
);
1161 D(SYSTEM
, "Error adding vlandev '%s' over '%s': %d\n", vlandev
->ifname
, dev
->ifname
, rv
);
1170 int system_vlandev_del(struct device
*vlandev
)
1172 return system_link_del(vlandev
->ifname
);
1176 system_if_get_settings(struct device
*dev
, struct device_settings
*s
)
1181 memset(&ifr
, 0, sizeof(ifr
));
1182 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
1184 if (ioctl(sock_ioctl
, SIOCGIFMTU
, &ifr
) == 0) {
1185 s
->mtu
= ifr
.ifr_mtu
;
1186 s
->flags
|= DEV_OPT_MTU
;
1189 s
->mtu6
= system_update_ipv6_mtu(dev
, 0);
1191 s
->flags
|= DEV_OPT_MTU6
;
1193 if (ioctl(sock_ioctl
, SIOCGIFTXQLEN
, &ifr
) == 0) {
1194 s
->txqueuelen
= ifr
.ifr_qlen
;
1195 s
->flags
|= DEV_OPT_TXQUEUELEN
;
1198 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0) {
1199 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
1200 s
->flags
|= DEV_OPT_MACADDR
;
1203 if (!system_get_disable_ipv6(dev
, buf
, sizeof(buf
))) {
1204 s
->ipv6
= !strtoul(buf
, NULL
, 0);
1205 s
->flags
|= DEV_OPT_IPV6
;
1208 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) == 0) {
1209 s
->promisc
= ifr
.ifr_flags
& IFF_PROMISC
;
1210 s
->flags
|= DEV_OPT_PROMISC
;
1212 s
->multicast
= ifr
.ifr_flags
& IFF_MULTICAST
;
1213 s
->flags
|= DEV_OPT_MULTICAST
;
1216 if (!system_get_rpfilter(dev
, buf
, sizeof(buf
))) {
1217 s
->rpfilter
= strtoul(buf
, NULL
, 0);
1218 s
->flags
|= DEV_OPT_RPFILTER
;
1221 if (!system_get_acceptlocal(dev
, buf
, sizeof(buf
))) {
1222 s
->acceptlocal
= strtoul(buf
, NULL
, 0);
1223 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
1226 if (!system_get_igmpversion(dev
, buf
, sizeof(buf
))) {
1227 s
->igmpversion
= strtoul(buf
, NULL
, 0);
1228 s
->flags
|= DEV_OPT_IGMPVERSION
;
1231 if (!system_get_mldversion(dev
, buf
, sizeof(buf
))) {
1232 s
->mldversion
= strtoul(buf
, NULL
, 0);
1233 s
->flags
|= DEV_OPT_MLDVERSION
;
1236 if (!system_get_neigh4reachabletime(dev
, buf
, sizeof(buf
))) {
1237 s
->neigh4reachabletime
= strtoul(buf
, NULL
, 0);
1238 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1241 if (!system_get_neigh6reachabletime(dev
, buf
, sizeof(buf
))) {
1242 s
->neigh6reachabletime
= strtoul(buf
, NULL
, 0);
1243 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1246 if (!system_get_dadtransmits(dev
, buf
, sizeof(buf
))) {
1247 s
->dadtransmits
= strtoul(buf
, NULL
, 0);
1248 s
->flags
|= DEV_OPT_DADTRANSMITS
;
1253 system_if_set_rps_xps_val(const char *path
, int val
)
1259 if (glob(path
, 0, NULL
, &gl
))
1262 snprintf(val_buf
, sizeof(val_buf
), "%x", val
);
1263 for (i
= 0; i
< gl
.gl_pathc
; i
++)
1264 system_set_sysctl(gl
.gl_pathv
[i
], val_buf
);
1270 system_if_apply_rps_xps(struct device
*dev
, struct device_settings
*s
)
1272 long n_cpus
= sysconf(_SC_NPROCESSORS_ONLN
);
1278 val
= (1 << n_cpus
) - 1;
1279 snprintf(dev_buf
, sizeof(dev_buf
), "/sys/class/net/%s/queues/*/rps_cpus", dev
->ifname
);
1280 system_if_set_rps_xps_val(dev_buf
, s
->rps
? val
: 0);
1282 snprintf(dev_buf
, sizeof(dev_buf
), "/sys/class/net/%s/queues/*/xps_cpus", dev
->ifname
);
1283 system_if_set_rps_xps_val(dev_buf
, s
->xps
? val
: 0);
1287 system_if_apply_settings(struct device
*dev
, struct device_settings
*s
, unsigned int apply_mask
)
1292 memset(&ifr
, 0, sizeof(ifr
));
1293 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
1294 if (s
->flags
& DEV_OPT_MTU
& apply_mask
) {
1295 ifr
.ifr_mtu
= s
->mtu
;
1296 if (ioctl(sock_ioctl
, SIOCSIFMTU
, &ifr
) < 0)
1297 s
->flags
&= ~DEV_OPT_MTU
;
1299 if (s
->flags
& DEV_OPT_MTU6
& apply_mask
) {
1300 system_update_ipv6_mtu(dev
, s
->mtu6
);
1302 if (s
->flags
& DEV_OPT_TXQUEUELEN
& apply_mask
) {
1303 ifr
.ifr_qlen
= s
->txqueuelen
;
1304 if (ioctl(sock_ioctl
, SIOCSIFTXQLEN
, &ifr
) < 0)
1305 s
->flags
&= ~DEV_OPT_TXQUEUELEN
;
1307 if ((s
->flags
& DEV_OPT_MACADDR
& apply_mask
) && !dev
->external
) {
1308 ifr
.ifr_hwaddr
.sa_family
= ARPHRD_ETHER
;
1309 memcpy(&ifr
.ifr_hwaddr
.sa_data
, s
->macaddr
, sizeof(s
->macaddr
));
1310 if (ioctl(sock_ioctl
, SIOCSIFHWADDR
, &ifr
) < 0)
1311 s
->flags
&= ~DEV_OPT_MACADDR
;
1313 if (s
->flags
& DEV_OPT_IPV6
& apply_mask
)
1314 system_set_disable_ipv6(dev
, s
->ipv6
? "0" : "1");
1315 if (s
->flags
& DEV_OPT_PROMISC
& apply_mask
) {
1316 if (system_if_flags(dev
->ifname
, s
->promisc
? IFF_PROMISC
: 0,
1317 !s
->promisc
? IFF_PROMISC
: 0) < 0)
1318 s
->flags
&= ~DEV_OPT_PROMISC
;
1320 if (s
->flags
& DEV_OPT_RPFILTER
& apply_mask
) {
1321 snprintf(buf
, sizeof(buf
), "%d", s
->rpfilter
);
1322 system_set_rpfilter(dev
, buf
);
1324 if (s
->flags
& DEV_OPT_ACCEPTLOCAL
& apply_mask
)
1325 system_set_acceptlocal(dev
, s
->acceptlocal
? "1" : "0");
1326 if (s
->flags
& DEV_OPT_IGMPVERSION
& apply_mask
) {
1327 snprintf(buf
, sizeof(buf
), "%d", s
->igmpversion
);
1328 system_set_igmpversion(dev
, buf
);
1330 if (s
->flags
& DEV_OPT_MLDVERSION
& apply_mask
) {
1331 snprintf(buf
, sizeof(buf
), "%d", s
->mldversion
);
1332 system_set_mldversion(dev
, buf
);
1334 if (s
->flags
& DEV_OPT_NEIGHREACHABLETIME
& apply_mask
) {
1335 snprintf(buf
, sizeof(buf
), "%d", s
->neigh4reachabletime
);
1336 system_set_neigh4reachabletime(dev
, buf
);
1337 snprintf(buf
, sizeof(buf
), "%d", s
->neigh6reachabletime
);
1338 system_set_neigh6reachabletime(dev
, buf
);
1340 if (s
->flags
& DEV_OPT_DADTRANSMITS
& apply_mask
) {
1341 snprintf(buf
, sizeof(buf
), "%d", s
->dadtransmits
);
1342 system_set_dadtransmits(dev
, buf
);
1344 if (s
->flags
& DEV_OPT_MULTICAST
& apply_mask
) {
1345 if (system_if_flags(dev
->ifname
, s
->multicast
? IFF_MULTICAST
: 0,
1346 !s
->multicast
? IFF_MULTICAST
: 0) < 0)
1347 s
->flags
&= ~DEV_OPT_MULTICAST
;
1350 system_if_apply_rps_xps(dev
, s
);
1353 int system_if_up(struct device
*dev
)
1355 system_if_get_settings(dev
, &dev
->orig_settings
);
1356 /* Only keep orig settings based on what needs to be set */
1357 dev
->orig_settings
.valid_flags
= dev
->orig_settings
.flags
;
1358 dev
->orig_settings
.flags
&= dev
->settings
.flags
;
1359 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
1360 return system_if_flags(dev
->ifname
, IFF_UP
, 0);
1363 int system_if_down(struct device
*dev
)
1365 int ret
= system_if_flags(dev
->ifname
, 0, IFF_UP
);
1366 system_if_apply_settings(dev
, &dev
->orig_settings
, dev
->orig_settings
.flags
);
1370 struct if_check_data
{
1376 #ifndef IFF_LOWER_UP
1377 #define IFF_LOWER_UP 0x10000
1380 static int cb_if_check_valid(struct nl_msg
*msg
, void *arg
)
1382 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
1383 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
1384 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1386 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
1389 device_set_present(chk
->dev
, ifi
->ifi_index
> 0 ? true : false);
1390 device_set_link(chk
->dev
, ifi
->ifi_flags
& IFF_LOWER_UP
? true : false);
1395 static int cb_if_check_ack(struct nl_msg
*msg
, void *arg
)
1397 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1402 static int cb_if_check_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1404 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1406 device_set_present(chk
->dev
, false);
1407 device_set_link(chk
->dev
, false);
1408 chk
->pending
= err
->error
;
1413 int system_if_check(struct device
*dev
)
1415 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1417 struct ifinfomsg ifi
= {
1418 .ifi_family
= AF_UNSPEC
,
1421 struct if_check_data chk
= {
1427 msg
= nlmsg_alloc_simple(RTM_GETLINK
, 0);
1431 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
1432 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
1435 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_check_valid
, &chk
);
1436 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_check_ack
, &chk
);
1437 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_check_error
, &chk
);
1439 nl_send_auto_complete(sock_rtnl
, msg
);
1440 while (chk
.pending
> 0)
1441 nl_recvmsgs(sock_rtnl
, cb
);
1453 system_if_get_parent(struct device
*dev
)
1455 char buf
[64], *devname
;
1456 int ifindex
, iflink
, len
;
1459 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/iflink", dev
->ifname
);
1460 f
= fopen(buf
, "r");
1464 len
= fread(buf
, 1, sizeof(buf
) - 1, f
);
1471 iflink
= strtoul(buf
, NULL
, 0);
1472 ifindex
= system_if_resolve(dev
);
1473 if (!iflink
|| iflink
== ifindex
)
1476 devname
= if_indextoname(iflink
, buf
);
1480 return device_get(devname
, true);
1484 read_string_file(int dir_fd
, const char *file
, char *buf
, int len
)
1490 fd
= openat(dir_fd
, file
, O_RDONLY
);
1495 len
= read(fd
, buf
, len
- 1);
1499 } else if (len
> 0) {
1502 c
= strchr(buf
, '\n');
1515 read_uint64_file(int dir_fd
, const char *file
, uint64_t *val
)
1520 ret
= read_string_file(dir_fd
, file
, buf
, sizeof(buf
));
1522 *val
= strtoull(buf
, NULL
, 0);
1527 /* Assume advertised flags == supported flags */
1528 static const struct {
1531 } ethtool_link_modes
[] = {
1532 { ADVERTISED_10baseT_Half
, "10H" },
1533 { ADVERTISED_10baseT_Full
, "10F" },
1534 { ADVERTISED_100baseT_Half
, "100H" },
1535 { ADVERTISED_100baseT_Full
, "100F" },
1536 { ADVERTISED_1000baseT_Half
, "1000H" },
1537 { ADVERTISED_1000baseT_Full
, "1000F" },
1540 static void system_add_link_modes(struct blob_buf
*b
, __u32 mask
)
1543 for (i
= 0; i
< ARRAY_SIZE(ethtool_link_modes
); i
++) {
1544 if (mask
& ethtool_link_modes
[i
].mask
)
1545 blobmsg_add_string(b
, NULL
, ethtool_link_modes
[i
].name
);
1550 system_if_force_external(const char *ifname
)
1555 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/phy80211", ifname
);
1556 return stat(buf
, &s
) == 0;
1560 system_if_dump_info(struct device
*dev
, struct blob_buf
*b
)
1562 struct ethtool_cmd ecmd
;
1568 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s", dev
->ifname
);
1569 dir_fd
= open(buf
, O_DIRECTORY
);
1571 memset(&ecmd
, 0, sizeof(ecmd
));
1572 memset(&ifr
, 0, sizeof(ifr
));
1573 strcpy(ifr
.ifr_name
, dev
->ifname
);
1574 ifr
.ifr_data
= (caddr_t
) &ecmd
;
1575 ecmd
.cmd
= ETHTOOL_GSET
;
1577 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) == 0) {
1578 c
= blobmsg_open_array(b
, "link-advertising");
1579 system_add_link_modes(b
, ecmd
.advertising
);
1580 blobmsg_close_array(b
, c
);
1582 c
= blobmsg_open_array(b
, "link-supported");
1583 system_add_link_modes(b
, ecmd
.supported
);
1584 blobmsg_close_array(b
, c
);
1586 s
= blobmsg_alloc_string_buffer(b
, "speed", 8);
1587 snprintf(s
, 8, "%d%c", ethtool_cmd_speed(&ecmd
),
1588 ecmd
.duplex
== DUPLEX_HALF
? 'H' : 'F');
1589 blobmsg_add_string_buffer(b
);
1597 system_if_dump_stats(struct device
*dev
, struct blob_buf
*b
)
1599 const char *const counters
[] = {
1600 "collisions", "rx_frame_errors", "tx_compressed",
1601 "multicast", "rx_length_errors", "tx_dropped",
1602 "rx_bytes", "rx_missed_errors", "tx_errors",
1603 "rx_compressed", "rx_over_errors", "tx_fifo_errors",
1604 "rx_crc_errors", "rx_packets", "tx_heartbeat_errors",
1605 "rx_dropped", "tx_aborted_errors", "tx_packets",
1606 "rx_errors", "tx_bytes", "tx_window_errors",
1607 "rx_fifo_errors", "tx_carrier_errors",
1614 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/statistics", dev
->ifname
);
1615 stats_dir
= open(buf
, O_DIRECTORY
);
1619 for (i
= 0; i
< ARRAY_SIZE(counters
); i
++)
1620 if (read_uint64_file(stats_dir
, counters
[i
], &val
))
1621 blobmsg_add_u64(b
, counters
[i
], val
);
1627 static int system_addr(struct device
*dev
, struct device_addr
*addr
, int cmd
)
1629 bool v4
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
);
1630 int alen
= v4
? 4 : 16;
1631 unsigned int flags
= 0;
1632 struct ifaddrmsg ifa
= {
1633 .ifa_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
1634 .ifa_prefixlen
= addr
->mask
,
1635 .ifa_index
= dev
->ifindex
,
1639 if (cmd
== RTM_NEWADDR
)
1640 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
1642 msg
= nlmsg_alloc_simple(cmd
, flags
);
1646 nlmsg_append(msg
, &ifa
, sizeof(ifa
), 0);
1647 nla_put(msg
, IFA_LOCAL
, alen
, &addr
->addr
);
1649 if (addr
->broadcast
)
1650 nla_put_u32(msg
, IFA_BROADCAST
, addr
->broadcast
);
1651 if (addr
->point_to_point
)
1652 nla_put_u32(msg
, IFA_ADDRESS
, addr
->point_to_point
);
1654 time_t now
= system_get_rtime();
1655 struct ifa_cacheinfo cinfo
= {0xffffffffU
, 0xffffffffU
, 0, 0};
1657 if (addr
->preferred_until
) {
1658 int64_t preferred
= addr
->preferred_until
- now
;
1661 else if (preferred
> UINT32_MAX
)
1662 preferred
= UINT32_MAX
;
1664 cinfo
.ifa_prefered
= preferred
;
1667 if (addr
->valid_until
) {
1668 int64_t valid
= addr
->valid_until
- now
;
1673 else if (valid
> UINT32_MAX
)
1676 cinfo
.ifa_valid
= valid
;
1679 nla_put(msg
, IFA_CACHEINFO
, sizeof(cinfo
), &cinfo
);
1681 if (cmd
== RTM_NEWADDR
&& (addr
->flags
& DEVADDR_OFFLINK
))
1682 nla_put_u32(msg
, IFA_FLAGS
, IFA_F_NOPREFIXROUTE
);
1685 return system_rtnl_call(msg
);
1688 int system_add_address(struct device
*dev
, struct device_addr
*addr
)
1690 return system_addr(dev
, addr
, RTM_NEWADDR
);
1693 int system_del_address(struct device
*dev
, struct device_addr
*addr
)
1695 return system_addr(dev
, addr
, RTM_DELADDR
);
1698 static int system_rt(struct device
*dev
, struct device_route
*route
, int cmd
)
1700 int alen
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
1702 unsigned int flags
= 0;
1705 have_gw
= !!route
->nexthop
.in
.s_addr
;
1707 have_gw
= route
->nexthop
.in6
.s6_addr32
[0] ||
1708 route
->nexthop
.in6
.s6_addr32
[1] ||
1709 route
->nexthop
.in6
.s6_addr32
[2] ||
1710 route
->nexthop
.in6
.s6_addr32
[3];
1712 unsigned int table
= (route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))
1713 ? route
->table
: RT_TABLE_MAIN
;
1715 struct rtmsg rtm
= {
1716 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
1717 .rtm_dst_len
= route
->mask
,
1718 .rtm_src_len
= route
->sourcemask
,
1719 .rtm_table
= (table
< 256) ? table
: RT_TABLE_UNSPEC
,
1720 .rtm_protocol
= (route
->flags
& DEVADDR_KERNEL
) ? RTPROT_KERNEL
: RTPROT_STATIC
,
1721 .rtm_scope
= RT_SCOPE_NOWHERE
,
1722 .rtm_type
= (cmd
== RTM_DELROUTE
) ? 0: RTN_UNICAST
,
1723 .rtm_flags
= (route
->flags
& DEVROUTE_ONLINK
) ? RTNH_F_ONLINK
: 0,
1727 if (cmd
== RTM_NEWROUTE
) {
1728 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
1730 if (!dev
) { // Add null-route
1731 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
1732 rtm
.rtm_type
= RTN_UNREACHABLE
;
1735 rtm
.rtm_scope
= (have_gw
) ? RT_SCOPE_UNIVERSE
: RT_SCOPE_LINK
;
1738 if (route
->flags
& DEVROUTE_TYPE
) {
1739 rtm
.rtm_type
= route
->type
;
1740 if (!(route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))) {
1741 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_BROADCAST
||
1742 rtm
.rtm_type
== RTN_NAT
|| rtm
.rtm_type
== RTN_ANYCAST
)
1743 rtm
.rtm_table
= RT_TABLE_LOCAL
;
1746 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_NAT
) {
1747 rtm
.rtm_scope
= RT_SCOPE_HOST
;
1748 } else if (rtm
.rtm_type
== RTN_BROADCAST
|| rtm
.rtm_type
== RTN_MULTICAST
||
1749 rtm
.rtm_type
== RTN_ANYCAST
) {
1750 rtm
.rtm_scope
= RT_SCOPE_LINK
;
1751 } else if (rtm
.rtm_type
== RTN_BLACKHOLE
|| rtm
.rtm_type
== RTN_UNREACHABLE
||
1752 rtm
.rtm_type
== RTN_PROHIBIT
|| rtm
.rtm_type
== RTN_FAILED_POLICY
) {
1753 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
1758 msg
= nlmsg_alloc_simple(cmd
, flags
);
1762 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
1765 nla_put(msg
, RTA_DST
, alen
, &route
->addr
);
1767 if (route
->sourcemask
) {
1768 if (rtm
.rtm_family
== AF_INET
)
1769 nla_put(msg
, RTA_PREFSRC
, alen
, &route
->source
);
1771 nla_put(msg
, RTA_SRC
, alen
, &route
->source
);
1774 if (route
->metric
> 0)
1775 nla_put_u32(msg
, RTA_PRIORITY
, route
->metric
);
1778 nla_put(msg
, RTA_GATEWAY
, alen
, &route
->nexthop
);
1781 nla_put_u32(msg
, RTA_OIF
, dev
->ifindex
);
1784 nla_put_u32(msg
, RTA_TABLE
, table
);
1786 if (route
->flags
& DEVROUTE_MTU
) {
1787 struct nlattr
*metrics
;
1789 if (!(metrics
= nla_nest_start(msg
, RTA_METRICS
)))
1790 goto nla_put_failure
;
1792 nla_put_u32(msg
, RTAX_MTU
, route
->mtu
);
1794 nla_nest_end(msg
, metrics
);
1797 return system_rtnl_call(msg
);
1804 int system_add_route(struct device
*dev
, struct device_route
*route
)
1806 return system_rt(dev
, route
, RTM_NEWROUTE
);
1809 int system_del_route(struct device
*dev
, struct device_route
*route
)
1811 return system_rt(dev
, route
, RTM_DELROUTE
);
1814 int system_flush_routes(void)
1816 const char *names
[] = {
1817 "/proc/sys/net/ipv4/route/flush",
1818 "/proc/sys/net/ipv6/route/flush"
1822 for (i
= 0; i
< ARRAY_SIZE(names
); i
++) {
1823 fd
= open(names
[i
], O_WRONLY
);
1827 if (write(fd
, "-1", 2)) {}
1833 bool system_resolve_rt_type(const char *type
, unsigned int *id
)
1835 return system_rtn_aton(type
, id
);
1838 bool system_resolve_rt_table(const char *name
, unsigned int *id
)
1842 unsigned int n
, table
= RT_TABLE_UNSPEC
;
1844 /* first try to parse table as number */
1845 if ((n
= strtoul(name
, &e
, 0)) > 0 && !*e
)
1848 /* handle well known aliases */
1849 else if (!strcmp(name
, "default"))
1850 table
= RT_TABLE_DEFAULT
;
1851 else if (!strcmp(name
, "main"))
1852 table
= RT_TABLE_MAIN
;
1853 else if (!strcmp(name
, "local"))
1854 table
= RT_TABLE_LOCAL
;
1856 /* try to look up name in /etc/iproute2/rt_tables */
1857 else if ((f
= fopen("/etc/iproute2/rt_tables", "r")) != NULL
)
1859 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
)
1861 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
1864 n
= strtoul(e
, NULL
, 10);
1865 e
= strtok(NULL
, " \t\n");
1867 if (e
&& !strcmp(e
, name
))
1877 if (table
== RT_TABLE_UNSPEC
)
1884 bool system_is_default_rt_table(unsigned int id
)
1886 return (id
== RT_TABLE_MAIN
);
1889 bool system_resolve_rpfilter(const char *filter
, unsigned int *id
)
1894 if (!strcmp(filter
, "strict"))
1896 else if (!strcmp(filter
, "loose"))
1899 n
= strtoul(filter
, &e
, 0);
1900 if (*e
|| e
== filter
|| n
> 2)
1908 static int system_iprule(struct iprule
*rule
, int cmd
)
1910 int alen
= ((rule
->flags
& IPRULE_FAMILY
) == IPRULE_INET4
) ? 4 : 16;
1913 struct rtmsg rtm
= {
1914 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
1915 .rtm_protocol
= RTPROT_STATIC
,
1916 .rtm_scope
= RT_SCOPE_UNIVERSE
,
1917 .rtm_table
= RT_TABLE_UNSPEC
,
1918 .rtm_type
= RTN_UNSPEC
,
1922 if (cmd
== RTM_NEWRULE
)
1923 rtm
.rtm_type
= RTN_UNICAST
;
1926 rtm
.rtm_flags
|= FIB_RULE_INVERT
;
1928 if (rule
->flags
& IPRULE_SRC
)
1929 rtm
.rtm_src_len
= rule
->src_mask
;
1931 if (rule
->flags
& IPRULE_DEST
)
1932 rtm
.rtm_dst_len
= rule
->dest_mask
;
1934 if (rule
->flags
& IPRULE_TOS
)
1935 rtm
.rtm_tos
= rule
->tos
;
1937 if (rule
->flags
& IPRULE_LOOKUP
) {
1938 if (rule
->lookup
< 256)
1939 rtm
.rtm_table
= rule
->lookup
;
1942 if (rule
->flags
& IPRULE_ACTION
)
1943 rtm
.rtm_type
= rule
->action
;
1944 else if (rule
->flags
& IPRULE_GOTO
)
1945 rtm
.rtm_type
= FR_ACT_GOTO
;
1946 else if (!(rule
->flags
& (IPRULE_LOOKUP
| IPRULE_ACTION
| IPRULE_GOTO
)))
1947 rtm
.rtm_type
= FR_ACT_NOP
;
1949 msg
= nlmsg_alloc_simple(cmd
, NLM_F_REQUEST
);
1954 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
1956 if (rule
->flags
& IPRULE_IN
)
1957 nla_put(msg
, FRA_IFNAME
, strlen(rule
->in_dev
) + 1, rule
->in_dev
);
1959 if (rule
->flags
& IPRULE_OUT
)
1960 nla_put(msg
, FRA_OIFNAME
, strlen(rule
->out_dev
) + 1, rule
->out_dev
);
1962 if (rule
->flags
& IPRULE_SRC
)
1963 nla_put(msg
, FRA_SRC
, alen
, &rule
->src_addr
);
1965 if (rule
->flags
& IPRULE_DEST
)
1966 nla_put(msg
, FRA_DST
, alen
, &rule
->dest_addr
);
1968 if (rule
->flags
& IPRULE_PRIORITY
)
1969 nla_put_u32(msg
, FRA_PRIORITY
, rule
->priority
);
1970 else if (cmd
== RTM_NEWRULE
)
1971 nla_put_u32(msg
, FRA_PRIORITY
, rule
->order
);
1973 if (rule
->flags
& IPRULE_FWMARK
)
1974 nla_put_u32(msg
, FRA_FWMARK
, rule
->fwmark
);
1976 if (rule
->flags
& IPRULE_FWMASK
)
1977 nla_put_u32(msg
, FRA_FWMASK
, rule
->fwmask
);
1979 if (rule
->flags
& IPRULE_LOOKUP
) {
1980 if (rule
->lookup
>= 256)
1981 nla_put_u32(msg
, FRA_TABLE
, rule
->lookup
);
1984 if (rule
->flags
& IPRULE_GOTO
)
1985 nla_put_u32(msg
, FRA_GOTO
, rule
->gotoid
);
1987 return system_rtnl_call(msg
);
1990 int system_add_iprule(struct iprule
*rule
)
1992 return system_iprule(rule
, RTM_NEWRULE
);
1995 int system_del_iprule(struct iprule
*rule
)
1997 return system_iprule(rule
, RTM_DELRULE
);
2000 int system_flush_iprules(void)
2005 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET
);
2006 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET6
);
2008 memset(&rule
, 0, sizeof(rule
));
2011 rule
.flags
= IPRULE_INET4
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
2014 rule
.lookup
= RT_TABLE_LOCAL
;
2015 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2017 rule
.priority
= 32766;
2018 rule
.lookup
= RT_TABLE_MAIN
;
2019 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2021 rule
.priority
= 32767;
2022 rule
.lookup
= RT_TABLE_DEFAULT
;
2023 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2026 rule
.flags
= IPRULE_INET6
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
2029 rule
.lookup
= RT_TABLE_LOCAL
;
2030 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2032 rule
.priority
= 32766;
2033 rule
.lookup
= RT_TABLE_MAIN
;
2034 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2039 bool system_resolve_iprule_action(const char *action
, unsigned int *id
)
2041 return system_rtn_aton(action
, id
);
2044 time_t system_get_rtime(void)
2049 if (syscall(__NR_clock_gettime
, CLOCK_MONOTONIC
, &ts
) == 0)
2052 if (gettimeofday(&tv
, NULL
) == 0)
2059 #define IP_DF 0x4000
2062 static int tunnel_ioctl(const char *name
, int cmd
, void *p
)
2066 memset(&ifr
, 0, sizeof(ifr
));
2067 strncpy(ifr
.ifr_name
, name
, sizeof(ifr
.ifr_name
));
2068 ifr
.ifr_ifru
.ifru_data
= p
;
2069 return ioctl(sock_ioctl
, cmd
, &ifr
);
2072 #ifdef IFLA_IPTUN_MAX
2073 #define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
2074 static int system_add_gre_tunnel(const char *name
, const char *kind
,
2075 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
2078 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
2079 struct blob_attr
*cur
;
2080 uint32_t ikey
= 0, okey
= 0, flags
= 0, flowinfo
= 0;
2081 uint16_t iflags
= 0, oflags
= 0;
2083 int ret
= 0, ttl
= 64;
2085 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2089 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2090 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2092 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2098 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
2099 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2106 nla_put_u32(nlm
, IFLA_GRE_LINK
, link
);
2108 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2109 ttl
= blobmsg_get_u32(cur
);
2111 nla_put_u8(nlm
, IFLA_GRE_TTL
, ttl
);
2113 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
2114 char *str
= blobmsg_get_string(cur
);
2115 if (strcmp(str
, "inherit")) {
2118 if (!system_tos_aton(str
, &uval
)) {
2124 flowinfo
|= htonl(uval
<< 20) & IP6_FLOWINFO_TCLASS
;
2129 flags
|= IP6_TNL_F_USE_ORIG_TCLASS
;
2135 if ((cur
= tb
[TUNNEL_ATTR_INFO
]) && (blobmsg_type(cur
) == BLOBMSG_TYPE_STRING
)) {
2136 uint8_t icsum
, ocsum
, iseqno
, oseqno
;
2137 if (sscanf(blobmsg_get_string(cur
), "%u,%u,%hhu,%hhu,%hhu,%hhu",
2138 &ikey
, &okey
, &icsum
, &ocsum
, &iseqno
, &oseqno
) < 6) {
2163 struct in6_addr in6buf
;
2164 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2165 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2169 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(in6buf
), &in6buf
);
2172 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2173 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2177 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(in6buf
), &in6buf
);
2179 nla_put_u8(nlm
, IFLA_GRE_ENCAP_LIMIT
, 4);
2182 nla_put_u32(nlm
, IFLA_GRE_FLOWINFO
, flowinfo
);
2185 nla_put_u32(nlm
, IFLA_GRE_FLAGS
, flags
);
2187 struct in_addr inbuf
;
2190 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2191 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2195 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(inbuf
), &inbuf
);
2198 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2199 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2203 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(inbuf
), &inbuf
);
2205 if (IN_MULTICAST(ntohl(inbuf
.s_addr
))) {
2207 okey
= inbuf
.s_addr
;
2212 ikey
= inbuf
.s_addr
;
2218 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
2219 set_df
= blobmsg_get_bool(cur
);
2221 /* ttl !=0 and nopmtudisc are incompatible */
2222 if (ttl
&& !set_df
) {
2227 nla_put_u8(nlm
, IFLA_GRE_PMTUDISC
, set_df
? 1 : 0);
2229 nla_put_u8(nlm
, IFLA_GRE_TOS
, tos
);
2233 nla_put_u16(nlm
, IFLA_GRE_OFLAGS
, oflags
);
2236 nla_put_u16(nlm
, IFLA_GRE_IFLAGS
, iflags
);
2239 nla_put_u32(nlm
, IFLA_GRE_OKEY
, okey
);
2242 nla_put_u32(nlm
, IFLA_GRE_IKEY
, ikey
);
2244 nla_nest_end(nlm
, infodata
);
2245 nla_nest_end(nlm
, linkinfo
);
2247 return system_rtnl_call(nlm
);
2256 static int system_add_vti_tunnel(const char *name
, const char *kind
,
2257 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
2260 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
2261 struct blob_attr
*cur
;
2262 uint32_t ikey
= 0, okey
= 0;
2265 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2269 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2270 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2272 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2278 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
2279 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2286 nla_put_u32(nlm
, IFLA_VTI_LINK
, link
);
2288 if ((cur
= tb
[TUNNEL_ATTR_INFO
]) && (blobmsg_type(cur
) == BLOBMSG_TYPE_STRING
)) {
2289 if (sscanf(blobmsg_get_string(cur
), "%u,%u",
2290 &ikey
, &okey
) < 2) {
2297 struct in6_addr in6buf
;
2298 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2299 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2303 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(in6buf
), &in6buf
);
2306 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2307 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2311 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(in6buf
), &in6buf
);
2315 struct in_addr inbuf
;
2317 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2318 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2322 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(inbuf
), &inbuf
);
2325 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2326 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2330 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(inbuf
), &inbuf
);
2336 nla_put_u32(nlm
, IFLA_VTI_OKEY
, htonl(okey
));
2339 nla_put_u32(nlm
, IFLA_VTI_IKEY
, htonl(ikey
));
2341 nla_nest_end(nlm
, infodata
);
2342 nla_nest_end(nlm
, linkinfo
);
2344 return system_rtnl_call(nlm
);
2352 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
, const unsigned int link
, struct blob_attr
**tb
)
2354 struct blob_attr
*cur
;
2356 struct ip_tunnel_parm p
= {
2365 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
]) &&
2366 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.saddr
) < 1)
2369 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
]) &&
2370 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.daddr
) < 1)
2373 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
2374 set_df
= blobmsg_get_bool(cur
);
2376 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2377 p
.iph
.ttl
= blobmsg_get_u32(cur
);
2379 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
2380 char *str
= blobmsg_get_string(cur
);
2381 if (strcmp(str
, "inherit")) {
2384 if (!system_tos_aton(str
, &uval
))
2392 p
.iph
.frag_off
= set_df
? htons(IP_DF
) : 0;
2393 /* ttl !=0 and nopmtudisc are incompatible */
2394 if (p
.iph
.ttl
&& p
.iph
.frag_off
== 0)
2397 strncpy(p
.name
, name
, sizeof(p
.name
));
2399 switch (p
.iph
.protocol
) {
2401 return tunnel_ioctl("tunl0", SIOCADDTUNNEL
, &p
);
2403 return tunnel_ioctl("sit0", SIOCADDTUNNEL
, &p
);
2410 static int __system_del_ip_tunnel(const char *name
, struct blob_attr
**tb
)
2412 struct blob_attr
*cur
;
2415 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
2417 str
= blobmsg_data(cur
);
2419 if (!strcmp(str
, "greip") || !strcmp(str
, "gretapip") ||
2420 !strcmp(str
, "greip6") || !strcmp(str
, "gretapip6") ||
2421 !strcmp(str
, "vtiip") || !strcmp(str
, "vtiip6"))
2422 return system_link_del(name
);
2424 return tunnel_ioctl(name
, SIOCDELTUNNEL
, NULL
);
2427 int system_del_ip_tunnel(const char *name
, struct blob_attr
*attr
)
2429 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
2431 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
2432 blob_data(attr
), blob_len(attr
));
2434 return __system_del_ip_tunnel(name
, tb
);
2437 int system_update_ipv6_mtu(struct device
*dev
, int mtu
)
2441 snprintf(buf
, sizeof(buf
), "/proc/sys/net/ipv6/conf/%s/mtu",
2444 int fd
= open(buf
, O_RDWR
);
2447 ssize_t len
= read(fd
, buf
, sizeof(buf
) - 1);
2454 if (write(fd
, buf
, snprintf(buf
, sizeof(buf
), "%i", mtu
)) > 0)
2463 int system_add_ip_tunnel(const char *name
, struct blob_attr
*attr
)
2465 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
2466 struct blob_attr
*cur
;
2469 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
2470 blob_data(attr
), blob_len(attr
));
2472 __system_del_ip_tunnel(name
, tb
);
2474 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
2476 str
= blobmsg_data(cur
);
2478 unsigned int ttl
= 0;
2479 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
2480 ttl
= blobmsg_get_u32(cur
);
2485 unsigned int link
= 0;
2486 if ((cur
= tb
[TUNNEL_ATTR_LINK
])) {
2487 struct interface
*iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
2491 if (iface
->l3_dev
.dev
)
2492 link
= iface
->l3_dev
.dev
->ifindex
;
2495 if (!strcmp(str
, "sit")) {
2496 if (system_add_proto_tunnel(name
, IPPROTO_IPV6
, link
, tb
) < 0)
2500 if ((cur
= tb
[TUNNEL_ATTR_6RD_PREFIX
])) {
2502 struct ip_tunnel_6rd p6
;
2504 memset(&p6
, 0, sizeof(p6
));
2506 if (!parse_ip_and_netmask(AF_INET6
, blobmsg_data(cur
),
2507 &p6
.prefix
, &mask
) || mask
> 128)
2509 p6
.prefixlen
= mask
;
2511 if ((cur
= tb
[TUNNEL_ATTR_6RD_RELAY_PREFIX
])) {
2512 if (!parse_ip_and_netmask(AF_INET
, blobmsg_data(cur
),
2513 &p6
.relay_prefix
, &mask
) || mask
> 32)
2515 p6
.relay_prefixlen
= mask
;
2518 if (tunnel_ioctl(name
, SIOCADD6RD
, &p6
) < 0) {
2519 __system_del_ip_tunnel(name
, tb
);
2524 #ifdef IFLA_IPTUN_MAX
2525 } else if (!strcmp(str
, "ipip6")) {
2526 struct nl_msg
*nlm
= nlmsg_alloc_simple(RTM_NEWLINK
,
2527 NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2528 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
};
2534 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2535 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2538 nla_put_u32(nlm
, IFLA_LINK
, link
);
2540 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2545 nla_put_string(nlm
, IFLA_INFO_KIND
, "ip6tnl");
2546 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2553 nla_put_u32(nlm
, IFLA_IPTUN_LINK
, link
);
2555 nla_put_u8(nlm
, IFLA_IPTUN_PROTO
, IPPROTO_IPIP
);
2556 nla_put_u8(nlm
, IFLA_IPTUN_TTL
, (ttl
) ? ttl
: 64);
2557 nla_put_u8(nlm
, IFLA_IPTUN_ENCAP_LIMIT
, 4);
2559 struct in6_addr in6buf
;
2560 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2561 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2565 nla_put(nlm
, IFLA_IPTUN_LOCAL
, sizeof(in6buf
), &in6buf
);
2568 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2569 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2573 nla_put(nlm
, IFLA_IPTUN_REMOTE
, sizeof(in6buf
), &in6buf
);
2576 #ifdef IFLA_IPTUN_FMR_MAX
2577 if ((cur
= tb
[TUNNEL_ATTR_FMRS
])) {
2578 struct nlattr
*fmrs
= nla_nest_start(nlm
, IFLA_IPTUN_FMRS
);
2580 struct blob_attr
*fmr
;
2581 unsigned rem
, fmrcnt
= 0;
2582 blobmsg_for_each_attr(fmr
, cur
, rem
) {
2583 if (blobmsg_type(fmr
) != BLOBMSG_TYPE_STRING
)
2586 unsigned ip4len
, ip6len
, ealen
, offset
= 6;
2590 if (sscanf(blobmsg_get_string(fmr
), "%47[^/]/%u,%15[^/]/%u,%u,%u",
2591 ip6buf
, &ip6len
, ip4buf
, &ip4len
, &ealen
, &offset
) < 5) {
2596 struct in6_addr ip6prefix
;
2597 struct in_addr ip4prefix
;
2598 if (inet_pton(AF_INET6
, ip6buf
, &ip6prefix
) != 1 ||
2599 inet_pton(AF_INET
, ip4buf
, &ip4prefix
) != 1) {
2604 struct nlattr
*rule
= nla_nest_start(nlm
, ++fmrcnt
);
2606 nla_put(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX
, sizeof(ip6prefix
), &ip6prefix
);
2607 nla_put(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX
, sizeof(ip4prefix
), &ip4prefix
);
2608 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX_LEN
, ip6len
);
2609 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX_LEN
, ip4len
);
2610 nla_put_u8(nlm
, IFLA_IPTUN_FMR_EA_LEN
, ealen
);
2611 nla_put_u8(nlm
, IFLA_IPTUN_FMR_OFFSET
, offset
);
2613 nla_nest_end(nlm
, rule
);
2616 nla_nest_end(nlm
, fmrs
);
2620 nla_nest_end(nlm
, infodata
);
2621 nla_nest_end(nlm
, linkinfo
);
2623 return system_rtnl_call(nlm
);
2627 } else if (!strcmp(str
, "greip")) {
2628 return system_add_gre_tunnel(name
, "gre", link
, tb
, false);
2629 } else if (!strcmp(str
, "gretapip")) {
2630 return system_add_gre_tunnel(name
, "gretap", link
, tb
, false);
2631 } else if (!strcmp(str
, "greip6")) {
2632 return system_add_gre_tunnel(name
, "ip6gre", link
, tb
, true);
2633 } else if (!strcmp(str
, "gretapip6")) {
2634 return system_add_gre_tunnel(name
, "ip6gretap", link
, tb
, true);
2636 } else if (!strcmp(str
, "vtiip")) {
2637 return system_add_vti_tunnel(name
, "vti", link
, tb
, false);
2638 } else if (!strcmp(str
, "vtiip6")) {
2639 return system_add_vti_tunnel(name
, "vti6", link
, tb
, true);
2642 } else if (!strcmp(str
, "ipip")) {
2643 return system_add_proto_tunnel(name
, IPPROTO_IPIP
, link
, tb
);