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>
30 #include <arpa/inet.h>
31 #include <netinet/in.h>
32 #include <netinet/ether.h>
34 #include <linux/rtnetlink.h>
35 #include <linux/neighbour.h>
36 #include <linux/sockios.h>
38 #include <linux/if_addr.h>
39 #include <linux/if_link.h>
40 #include <linux/if_vlan.h>
41 #include <linux/if_bridge.h>
42 #include <linux/if_tunnel.h>
43 #include <linux/ip6_tunnel.h>
44 #include <linux/ethtool.h>
45 #include <linux/fib_rules.h>
46 #include <linux/veth.h>
47 #include <linux/version.h>
51 #ifndef RTN_FAILED_POLICY
52 #define RTN_FAILED_POLICY 12
55 #ifndef IFA_F_NOPREFIXROUTE
56 #define IFA_F_NOPREFIXROUTE 0x200
60 #define IFA_FLAGS (IFA_MULTICAST + 1)
69 #include <netlink/msg.h>
70 #include <netlink/attr.h>
71 #include <netlink/socket.h>
72 #include <libubox/uloop.h>
80 struct uloop_fd uloop
;
85 static int sock_ioctl
= -1;
86 static struct nl_sock
*sock_rtnl
= NULL
;
88 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
);
89 static void handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
);
90 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
,
91 const unsigned int link
, struct blob_attr
**tb
);
93 static char dev_buf
[256];
94 static const char *proc_path
= "/proc";
95 static const char *sysfs_path
= "/sys";
98 handler_nl_event(struct uloop_fd
*u
, unsigned int events
)
100 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
102 socklen_t errlen
= sizeof(err
);
105 nl_recvmsgs_default(ev
->sock
);
109 if (getsockopt(u
->fd
, SOL_SOCKET
, SO_ERROR
, (void *)&err
, &errlen
))
114 /* Increase rx buffer size on netlink socket */
116 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
119 /* Request full dump since some info got dropped */
120 struct rtgenmsg msg
= { .rtgen_family
= AF_UNSPEC
};
121 nl_send_simple(ev
->sock
, RTM_GETLINK
, NLM_F_DUMP
, &msg
, sizeof(msg
));
131 uloop_fd_delete(&ev
->uloop
);
135 static struct nl_sock
*
136 create_socket(int protocol
, int groups
)
138 struct nl_sock
*sock
;
140 sock
= nl_socket_alloc();
145 nl_join_groups(sock
, groups
);
147 if (nl_connect(sock
, protocol
)) {
148 nl_socket_free(sock
);
156 create_raw_event_socket(struct event_socket
*ev
, int protocol
, int groups
,
157 uloop_fd_handler cb
, int flags
)
159 ev
->sock
= create_socket(protocol
, groups
);
163 ev
->uloop
.fd
= nl_socket_get_fd(ev
->sock
);
165 if (uloop_fd_add(&ev
->uloop
, ULOOP_READ
|flags
))
172 create_event_socket(struct event_socket
*ev
, int protocol
,
173 int (*cb
)(struct nl_msg
*msg
, void *arg
))
175 if (!create_raw_event_socket(ev
, protocol
, 0, handler_nl_event
, ULOOP_ERROR_CB
))
178 /* Install the valid custom callback handler */
179 nl_socket_modify_cb(ev
->sock
, NL_CB_VALID
, NL_CB_CUSTOM
, cb
, NULL
);
181 /* Disable sequence number checking on event sockets */
182 nl_socket_disable_seq_check(ev
->sock
);
184 /* Increase rx buffer size to 65K on event sockets */
186 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
193 create_hotplug_event_socket(struct event_socket
*ev
, int protocol
,
194 void (*cb
)(struct uloop_fd
*u
, unsigned int events
))
196 if (!create_raw_event_socket(ev
, protocol
, 1, cb
, ULOOP_ERROR_CB
))
199 /* Increase rx buffer size to 65K on event sockets */
201 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
208 system_rtn_aton(const char *src
, unsigned int *dst
)
213 if (!strcmp(src
, "local"))
215 else if (!strcmp(src
, "nat"))
217 else if (!strcmp(src
, "broadcast"))
219 else if (!strcmp(src
, "anycast"))
221 else if (!strcmp(src
, "multicast"))
223 else if (!strcmp(src
, "prohibit"))
225 else if (!strcmp(src
, "unreachable"))
227 else if (!strcmp(src
, "blackhole"))
229 else if (!strcmp(src
, "xresolve"))
231 else if (!strcmp(src
, "unicast"))
233 else if (!strcmp(src
, "throw"))
235 else if (!strcmp(src
, "failed_policy"))
236 n
= RTN_FAILED_POLICY
;
238 n
= strtoul(src
, &e
, 0);
239 if (!e
|| *e
|| e
== src
|| n
> 255)
248 system_tos_aton(const char *src
, unsigned *dst
)
252 *dst
= strtoul(src
, &e
, 16);
253 if (e
== src
|| *e
|| *dst
> 255)
259 int system_init(void)
261 static struct event_socket rtnl_event
;
262 static struct event_socket hotplug_event
;
264 sock_ioctl
= socket(AF_LOCAL
, SOCK_DGRAM
, 0);
265 system_fd_set_cloexec(sock_ioctl
);
267 /* Prepare socket for routing / address control */
268 sock_rtnl
= create_socket(NETLINK_ROUTE
, 0);
272 if (!create_event_socket(&rtnl_event
, NETLINK_ROUTE
, cb_rtnl_event
))
275 if (!create_hotplug_event_socket(&hotplug_event
, NETLINK_KOBJECT_UEVENT
,
276 handle_hotplug_event
))
279 /* Receive network link events form kernel */
280 nl_socket_add_membership(rtnl_event
.sock
, RTNLGRP_LINK
);
285 static void write_file(const char *path
, const char *val
)
289 fd
= open(path
, O_WRONLY
);
293 if (write(fd
, val
, strlen(val
))) {}
297 static int read_file(const char *path
, char *buf
, const size_t buf_sz
)
299 int fd
= -1, ret
= -1;
301 fd
= open(path
, O_RDONLY
);
305 ssize_t len
= read(fd
, buf
, buf_sz
- 1);
320 dev_sysctl_path(const char *prefix
, const char *ifname
, const char *file
)
322 snprintf(dev_buf
, sizeof(dev_buf
), "%s/sys/net/%s/%s/%s", proc_path
, prefix
, ifname
, file
);
328 dev_sysfs_path(const char *ifname
, const char *file
)
330 snprintf(dev_buf
, sizeof(dev_buf
), "%s/class/net/%s/%s", sysfs_path
, ifname
, file
);
336 system_set_dev_sysctl(const char *prefix
, const char *file
, const char *ifname
,
339 write_file(dev_sysctl_path(prefix
, ifname
, file
), val
);
343 system_get_dev_sysctl(const char *prefix
, const char *file
, const char *ifname
,
344 char *buf
, size_t buf_sz
)
346 return read_file(dev_sysctl_path(prefix
, ifname
, file
), buf
, buf_sz
);
350 system_set_dev_sysfs(const char *file
, const char *ifname
, const char *val
)
355 write_file(dev_sysfs_path(ifname
, file
), val
);
359 system_set_dev_sysfs_int(const char *file
, const char *ifname
, int val
)
363 snprintf(buf
, sizeof(buf
), "%d", val
);
364 system_set_dev_sysfs(file
, ifname
, buf
);
368 system_get_dev_sysfs(const char *file
, const char *ifname
, char *buf
, size_t buf_sz
)
370 return read_file(dev_sysfs_path(ifname
, file
), buf
, buf_sz
);
373 static void system_set_disable_ipv6(struct device
*dev
, const char *val
)
375 system_set_dev_sysctl("ipv6/conf", "disable_ipv6", dev
->ifname
, val
);
378 static void system_set_ip6segmentrouting(struct device
*dev
, const char *val
)
380 system_set_dev_sysctl("ipv6/conf", "seg6_enabled", dev
->ifname
, val
);
383 static void system_set_rpfilter(struct device
*dev
, const char *val
)
385 system_set_dev_sysctl("ipv4/conf", "rp_filter", dev
->ifname
, val
);
388 static void system_set_acceptlocal(struct device
*dev
, const char *val
)
390 system_set_dev_sysctl("ipv4/conf", "accept_local", dev
->ifname
, val
);
393 static void system_set_igmpversion(struct device
*dev
, const char *val
)
395 system_set_dev_sysctl("ipv4/conf", "force_igmp_version", dev
->ifname
, val
);
398 static void system_set_mldversion(struct device
*dev
, const char *val
)
400 system_set_dev_sysctl("ipv6/conf", "force_mld_version", dev
->ifname
, val
);
403 static void system_set_neigh4reachabletime(struct device
*dev
, const char *val
)
405 system_set_dev_sysctl("ipv4/neigh", "base_reachable_time_ms", dev
->ifname
, val
);
408 static void system_set_neigh6reachabletime(struct device
*dev
, const char *val
)
410 system_set_dev_sysctl("ipv6/neigh", "base_reachable_time_ms", dev
->ifname
, val
);
413 static void system_set_neigh4gcstaletime(struct device
*dev
, const char *val
)
415 system_set_dev_sysctl("ipv4/neigh", "gc_stale_time", dev
->ifname
, val
);
418 static void system_set_neigh6gcstaletime(struct device
*dev
, const char *val
)
420 system_set_dev_sysctl("ipv6/neigh", "gc_stale_time", dev
->ifname
, val
);
423 static void system_set_neigh4locktime(struct device
*dev
, const char *val
)
425 system_set_dev_sysctl("ipv4/neigh", "locktime", dev
->ifname
, val
);
428 static void system_set_dadtransmits(struct device
*dev
, const char *val
)
430 system_set_dev_sysctl("ipv6/conf", "dad_transmits", dev
->ifname
, val
);
433 static void system_set_sendredirects(struct device
*dev
, const char *val
)
435 system_set_dev_sysctl("ipv4/conf", "send_redirects", dev
->ifname
, val
);
438 static void system_set_drop_v4_unicast_in_l2_multicast(struct device
*dev
, const char *val
)
440 system_set_dev_sysctl("ipv4/conf", "drop_unicast_in_l2_multicast", dev
->ifname
, val
);
443 static void system_set_drop_v6_unicast_in_l2_multicast(struct device
*dev
, const char *val
)
445 system_set_dev_sysctl("ipv6/conf", "drop_unicast_in_l2_multicast", dev
->ifname
, val
);
448 static void system_set_drop_gratuitous_arp(struct device
*dev
, const char *val
)
450 system_set_dev_sysctl("ipv4/conf", "drop_gratuitous_arp", dev
->ifname
, val
);
453 static void system_set_drop_unsolicited_na(struct device
*dev
, const char *val
)
455 system_set_dev_sysctl("ipv6/conf", "drop_unsolicited_na", dev
->ifname
, val
);
458 static void system_set_arp_accept(struct device
*dev
, const char *val
)
460 system_set_dev_sysctl("ipv4/conf", "arp_accept", dev
->ifname
, val
);
463 static void system_bridge_set_multicast_to_unicast(struct device
*dev
, const char *val
)
465 system_set_dev_sysfs("brport/multicast_to_unicast", dev
->ifname
, val
);
468 static void system_bridge_set_multicast_fast_leave(struct device
*dev
, const char *val
)
470 system_set_dev_sysfs("brport/multicast_fast_leave", dev
->ifname
, val
);
473 static void system_bridge_set_hairpin_mode(struct device
*dev
, const char *val
)
475 system_set_dev_sysfs("brport/hairpin_mode", dev
->ifname
, val
);
478 static void system_bridge_set_proxyarp_wifi(struct device
*dev
, const char *val
)
480 system_set_dev_sysfs("brport/proxyarp_wifi", dev
->ifname
, val
);
483 static void system_bridge_set_bpdu_filter(struct device
*dev
, const char *val
)
485 system_set_dev_sysfs("brport/bpdu_filter", dev
->ifname
, val
);
488 static void system_bridge_set_isolated(struct device
*dev
, const char *val
)
490 system_set_dev_sysfs("brport/isolated", dev
->ifname
, val
);
493 static void system_bridge_set_multicast_router(struct device
*dev
, const char *val
)
495 system_set_dev_sysfs("brport/multicast_router", dev
->ifname
, val
);
498 void system_bridge_set_stp_state(struct device
*dev
, bool val
)
500 const char *valstr
= val
? "1" : "0";
502 system_set_dev_sysfs("bridge/stp_state", dev
->ifname
, valstr
);
505 static void system_bridge_set_learning(struct device
*dev
, const char *val
)
507 system_set_dev_sysfs("brport/learning", dev
->ifname
, val
);
510 static void system_bridge_set_unicast_flood(struct device
*dev
, const char *val
)
512 system_set_dev_sysfs("brport/unicast_flood", dev
->ifname
, val
);
515 static int system_get_disable_ipv6(struct device
*dev
, char *buf
, const size_t buf_sz
)
517 return system_get_dev_sysctl("ipv6/conf", "disable_ipv6",
518 dev
->ifname
, buf
, buf_sz
);
521 static int system_get_ip6segmentrouting(struct device
*dev
, char *buf
, const size_t buf_sz
)
523 return system_get_dev_sysctl("ipv6/conf", "seg6_enabled",
524 dev
->ifname
, buf
, buf_sz
);
527 static int system_get_rpfilter(struct device
*dev
, char *buf
, const size_t buf_sz
)
529 return system_get_dev_sysctl("ipv4/conf", "rp_filter",
530 dev
->ifname
, buf
, buf_sz
);
533 static int system_get_acceptlocal(struct device
*dev
, char *buf
, const size_t buf_sz
)
535 return system_get_dev_sysctl("ipv4/conf", "accept_local",
536 dev
->ifname
, buf
, buf_sz
);
539 static int system_get_igmpversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
541 return system_get_dev_sysctl("ipv4/conf", "force_igmp_version",
542 dev
->ifname
, buf
, buf_sz
);
545 static int system_get_mldversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
547 return system_get_dev_sysctl("ipv6/conf", "force_mld_version",
548 dev
->ifname
, buf
, buf_sz
);
551 static int system_get_neigh4reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
553 return system_get_dev_sysctl("ipv4/neigh", "base_reachable_time_ms",
554 dev
->ifname
, buf
, buf_sz
);
557 static int system_get_neigh6reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
559 return system_get_dev_sysctl("ipv6/neigh", "base_reachable_time_ms",
560 dev
->ifname
, buf
, buf_sz
);
563 static int system_get_neigh4gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
565 return system_get_dev_sysctl("ipv4/neigh", "gc_stale_time",
566 dev
->ifname
, buf
, buf_sz
);
569 static int system_get_neigh6gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
571 return system_get_dev_sysctl("ipv6/neigh", "gc_stale_time",
572 dev
->ifname
, buf
, buf_sz
);
575 static int system_get_neigh4locktime(struct device
*dev
, char *buf
, const size_t buf_sz
)
577 return system_get_dev_sysctl("ipv4/neigh", "locktime",
578 dev
->ifname
, buf
, buf_sz
);
581 static int system_get_dadtransmits(struct device
*dev
, char *buf
, const size_t buf_sz
)
583 return system_get_dev_sysctl("ipv6/conf", "dad_transmits",
584 dev
->ifname
, buf
, buf_sz
);
587 static int system_get_sendredirects(struct device
*dev
, char *buf
, const size_t buf_sz
)
589 return system_get_dev_sysctl("ipv4/conf", "send_redirects",
590 dev
->ifname
, buf
, buf_sz
);
594 static int system_get_drop_v4_unicast_in_l2_multicast(struct device
*dev
, char *buf
, const size_t buf_sz
)
596 return system_get_dev_sysctl("ipv4/conf", "drop_unicast_in_l2_multicast",
597 dev
->ifname
, buf
, buf_sz
);
600 static int system_get_drop_v6_unicast_in_l2_multicast(struct device
*dev
, char *buf
, const size_t buf_sz
)
602 return system_get_dev_sysctl("ipv6/conf", "drop_unicast_in_l2_multicast",
603 dev
->ifname
, buf
, buf_sz
);
606 static int system_get_drop_gratuitous_arp(struct device
*dev
, char *buf
, const size_t buf_sz
)
608 return system_get_dev_sysctl("ipv4/conf", "drop_gratuitous_arp",
609 dev
->ifname
, buf
, buf_sz
);
612 static int system_get_drop_unsolicited_na(struct device
*dev
, char *buf
, const size_t buf_sz
)
614 return system_get_dev_sysctl("ipv6/conf", "drop_unsolicited_na",
615 dev
->ifname
, buf
, buf_sz
);
618 static int system_get_arp_accept(struct device
*dev
, char *buf
, const size_t buf_sz
)
620 return system_get_dev_sysctl("ipv4/conf", "arp_accept",
621 dev
->ifname
, buf
, buf_sz
);
624 /* Evaluate netlink messages */
625 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
)
627 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
628 struct nlattr
*nla
[__IFLA_MAX
];
632 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
635 nlmsg_parse(nh
, sizeof(struct ifinfomsg
), nla
, __IFLA_MAX
- 1, NULL
);
636 if (!nla
[IFLA_IFNAME
])
639 struct device
*dev
= device_find(nla_data(nla
[IFLA_IFNAME
]));
643 if (!system_get_dev_sysfs("carrier", dev
->ifname
, buf
, sizeof(buf
)))
644 link_state
= strtoul(buf
, NULL
, 0);
646 if (dev
->type
== &simple_device_type
)
647 device_set_present(dev
, true);
649 device_set_link(dev
, link_state
? true : false);
656 handle_hotplug_msg(char *data
, int size
)
658 const char *subsystem
= NULL
, *interface
= NULL
, *interface_old
= NULL
;
659 char *cur
, *end
, *sep
;
663 if (!strncmp(data
, "add@", 4) || !strncmp(data
, "move@", 5))
665 else if (!strncmp(data
, "remove@", 7))
670 skip
= strlen(data
) + 1;
673 for (cur
= data
+ skip
; cur
< end
; cur
+= skip
) {
674 skip
= strlen(cur
) + 1;
676 sep
= strchr(cur
, '=');
681 if (!strcmp(cur
, "INTERFACE"))
683 else if (!strcmp(cur
, "SUBSYSTEM")) {
685 if (strcmp(subsystem
, "net") != 0)
687 } else if (!strcmp(cur
, "DEVPATH_OLD")) {
688 interface_old
= strrchr(sep
+ 1, '/');
694 if (!subsystem
|| !interface
)
698 device_hotplug_event(interface_old
, false);
700 device_hotplug_event(interface
, add
);
704 handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
)
706 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
707 struct sockaddr_nl nla
;
708 unsigned char *buf
= NULL
;
711 socklen_t errlen
= sizeof(err
);
714 while ((size
= nl_recv(ev
->sock
, &nla
, &buf
, NULL
)) > 0) {
716 handle_hotplug_msg((char *) buf
, size
);
723 if (getsockopt(u
->fd
, SOL_SOCKET
, SO_ERROR
, (void *)&err
, &errlen
))
728 /* Increase rx buffer size on netlink socket */
730 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
741 uloop_fd_delete(&ev
->uloop
);
745 static int system_rtnl_call(struct nl_msg
*msg
)
749 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
755 return nl_wait_for_ack(sock_rtnl
);
758 static struct nl_msg
*__system_ifinfo_msg(int af
, int index
, const char *ifname
, uint16_t type
, uint16_t flags
)
761 struct ifinfomsg iim
= {
766 msg
= nlmsg_alloc_simple(type
, flags
| NLM_F_REQUEST
);
770 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
772 nla_put_string(msg
, IFLA_IFNAME
, ifname
);
777 static struct nl_msg
*system_ifinfo_msg(const char *ifname
, uint16_t type
, uint16_t flags
)
779 return __system_ifinfo_msg(AF_UNSPEC
, 0, ifname
, type
, flags
);
782 static int system_link_del(const char *ifname
)
786 msg
= system_ifinfo_msg(ifname
, RTM_DELLINK
, 0);
790 return system_rtnl_call(msg
);
793 int system_bridge_delbr(struct device
*bridge
)
795 return system_link_del(bridge
->ifname
);
798 static int system_bridge_if(const char *bridge
, struct device
*dev
, int cmd
, void *data
)
802 memset(&ifr
, 0, sizeof(ifr
));
804 ifr
.ifr_ifindex
= dev
->ifindex
;
807 strncpy(ifr
.ifr_name
, bridge
, sizeof(ifr
.ifr_name
) - 1);
808 return ioctl(sock_ioctl
, cmd
, &ifr
);
811 static bool system_is_bridge(const char *name
)
815 return stat(dev_sysfs_path(name
, "bridge"), &st
) >= 0;
818 static char *system_get_bridge(const char *name
, char *buf
, int buflen
)
824 snprintf(buf
, buflen
, "%s/devices/virtual/net/*/brif/%s/bridge", sysfs_path
, name
);
825 if (glob(buf
, GLOB_NOSORT
, NULL
, &gl
) < 0)
829 len
= readlink(gl
.gl_pathv
[0], buf
, buflen
);
837 path
= strrchr(buf
, '/');
845 system_bridge_set_wireless(struct device
*bridge
, struct device
*dev
)
847 bool mcast_to_ucast
= dev
->wireless_ap
;
850 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
&&
851 !bridge
->settings
.multicast_to_unicast
)
852 mcast_to_ucast
= false;
854 hairpin
= mcast_to_ucast
|| dev
->wireless_proxyarp
;
855 if (dev
->wireless_isolate
)
858 system_bridge_set_multicast_to_unicast(dev
, mcast_to_ucast
? "1" : "0");
859 system_bridge_set_hairpin_mode(dev
, hairpin
? "1" : "0");
860 system_bridge_set_proxyarp_wifi(dev
, dev
->wireless_proxyarp
? "1" : "0");
863 int system_bridge_addif(struct device
*bridge
, struct device
*dev
)
872 oldbr
= system_get_bridge(dev
->ifname
, dev_buf
, sizeof(dev_buf
));
873 if (!oldbr
|| strcmp(oldbr
, bridge
->ifname
) != 0) {
874 ret
= system_bridge_if(bridge
->ifname
, dev
, SIOCBRADDIF
, NULL
);
876 D(SYSTEM
, "Failed to add device '%s' to bridge '%s' (tries=%d): %s\n",
877 dev
->ifname
, bridge
->ifname
, tries
, strerror(errno
));
883 system_bridge_set_wireless(bridge
, dev
);
885 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
886 snprintf(buf
, sizeof(buf
), "%u", dev
->settings
.multicast_router
);
887 system_bridge_set_multicast_router(dev
, buf
);
890 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
&&
891 dev
->settings
.multicast_fast_leave
)
892 system_bridge_set_multicast_fast_leave(dev
, "1");
894 if (dev
->settings
.flags
& DEV_OPT_LEARNING
&&
895 !dev
->settings
.learning
)
896 system_bridge_set_learning(dev
, "0");
898 if (dev
->settings
.flags
& DEV_OPT_UNICAST_FLOOD
&&
899 !dev
->settings
.unicast_flood
)
900 system_bridge_set_unicast_flood(dev
, "0");
902 if (dev
->settings
.flags
& DEV_OPT_ISOLATE
&&
903 dev
->settings
.isolate
)
904 system_bridge_set_isolated(dev
, "1");
906 if (dev
->bpdu_filter
)
907 system_bridge_set_bpdu_filter(dev
, dev
->bpdu_filter
? "1" : "0");
912 int system_bridge_delif(struct device
*bridge
, struct device
*dev
)
914 return system_bridge_if(bridge
->ifname
, dev
, SIOCBRDELIF
, NULL
);
917 int system_bridge_vlan(const char *iface
, uint16_t vid
, bool add
, unsigned int vflags
)
919 struct bridge_vlan_info vinfo
= { .vid
= vid
, };
920 unsigned short flags
= 0;
921 struct nlattr
*afspec
;
926 index
= if_nametoindex(iface
);
930 nlm
= __system_ifinfo_msg(PF_BRIDGE
, index
, NULL
, add
? RTM_SETLINK
: RTM_DELLINK
, 0);
934 if (vflags
& BRVLAN_F_SELF
)
935 flags
|= BRIDGE_FLAGS_SELF
;
937 if (vflags
& BRVLAN_F_PVID
)
938 vinfo
.flags
|= BRIDGE_VLAN_INFO_PVID
;
940 if (vflags
& BRVLAN_F_UNTAGGED
)
941 vinfo
.flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
943 afspec
= nla_nest_start(nlm
, IFLA_AF_SPEC
);
950 nla_put_u16(nlm
, IFLA_BRIDGE_FLAGS
, flags
);
952 nla_put(nlm
, IFLA_BRIDGE_VLAN_INFO
, sizeof(vinfo
), &vinfo
);
953 nla_nest_end(nlm
, afspec
);
955 return system_rtnl_call(nlm
);
962 int system_bonding_set_device(struct device
*dev
, struct bonding_config
*cfg
)
964 const char *ifname
= dev
->ifname
;
965 struct blob_attr
*cur
;
966 char op
= cfg
? '+' : '-';
970 snprintf(dev_buf
, sizeof(dev_buf
), "%s/class/net/bonding_masters", sysfs_path
);
971 snprintf(buf
, sizeof(buf
), "%c%s", op
, ifname
);
972 write_file(dev_buf
, buf
);
977 system_set_dev_sysfs("bonding/mode", ifname
, bonding_policy_str
[cfg
->policy
]);
979 system_set_dev_sysfs_int("bonding/all_ports_active", ifname
, cfg
->all_ports_active
);
981 if (cfg
->policy
== BONDING_MODE_BALANCE_XOR
||
982 cfg
->policy
== BONDING_MODE_BALANCE_TLB
||
983 cfg
->policy
== BONDING_MODE_8023AD
)
984 system_set_dev_sysfs("bonding/xmit_hash_policy", ifname
, cfg
->xmit_hash_policy
);
986 if (cfg
->policy
== BONDING_MODE_8023AD
) {
987 system_set_dev_sysfs("bonding/ad_actor_system", ifname
, cfg
->ad_actor_system
);
988 system_set_dev_sysfs_int("bonding/ad_actor_sys_prio", ifname
, cfg
->ad_actor_sys_prio
);
989 system_set_dev_sysfs("bonding/ad_select", ifname
, cfg
->ad_select
);
990 system_set_dev_sysfs("bonding/lacp_rate", ifname
, cfg
->lacp_rate
);
991 system_set_dev_sysfs_int("bonding/min_links", ifname
, cfg
->min_links
);
994 if (cfg
->policy
== BONDING_MODE_BALANCE_RR
)
995 system_set_dev_sysfs_int("bonding/packets_per_slave", ifname
, cfg
->packets_per_port
);
997 if (cfg
->policy
== BONDING_MODE_BALANCE_TLB
||
998 cfg
->policy
== BONDING_MODE_BALANCE_ALB
)
999 system_set_dev_sysfs_int("bonding/lp_interval", ifname
, cfg
->lp_interval
);
1001 if (cfg
->policy
== BONDING_MODE_BALANCE_TLB
)
1002 system_set_dev_sysfs_int("bonding/tlb_dynamic_lb", ifname
, cfg
->dynamic_lb
);
1003 system_set_dev_sysfs_int("bonding/resend_igmp", ifname
, cfg
->resend_igmp
);
1004 system_set_dev_sysfs_int("bonding/num_grat_arp", ifname
, cfg
->num_peer_notif
);
1005 system_set_dev_sysfs("bonding/primary_reselect", ifname
, cfg
->primary_reselect
);
1006 system_set_dev_sysfs("bonding/fail_over_mac", ifname
, cfg
->failover_mac
);
1008 system_set_dev_sysfs_int((cfg
->monitor_arp
?
1009 "bonding/arp_interval" :
1010 "bonding/miimon"), ifname
, cfg
->monitor_interval
);
1012 blobmsg_for_each_attr(cur
, cfg
->arp_target
, rem
) {
1013 snprintf(buf
, sizeof(buf
), "+%s", blobmsg_get_string(cur
));
1014 system_set_dev_sysfs("bonding/arp_ip_target", ifname
, buf
);
1017 system_set_dev_sysfs_int("bonding/arp_all_targets", ifname
, cfg
->arp_all_targets
);
1018 if (cfg
->policy
< BONDING_MODE_8023AD
)
1019 system_set_dev_sysfs("bonding/arp_validate", ifname
, cfg
->arp_validate
);
1020 system_set_dev_sysfs_int("bonding/use_carrier", ifname
, cfg
->use_carrier
);
1021 if (!cfg
->monitor_arp
&& cfg
->monitor_interval
) {
1022 system_set_dev_sysfs_int("bonding/updelay", ifname
, cfg
->updelay
);
1023 system_set_dev_sysfs_int("bonding/downdelay", ifname
, cfg
->downdelay
);
1029 int system_bonding_set_port(struct device
*dev
, struct device
*port
, bool add
, bool primary
)
1031 const char *port_name
= port
->ifname
;
1032 const char op_ch
= add
? '+' : '-';
1033 char buf
[IFNAMSIZ
+ 2];
1035 snprintf(buf
, sizeof(buf
), "%c%s", op_ch
, port_name
);
1036 system_if_down(port
);
1037 system_set_dev_sysfs("bonding/slaves", dev
->ifname
, buf
);
1041 system_set_dev_sysfs("bonding/primary", dev
->ifname
,
1042 add
? port_name
: "");
1047 int system_if_resolve(struct device
*dev
)
1051 memset(&ifr
, 0, sizeof(ifr
));
1052 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1053 if (!ioctl(sock_ioctl
, SIOCGIFINDEX
, &ifr
))
1054 return ifr
.ifr_ifindex
;
1059 static int system_if_flags(const char *ifname
, unsigned add
, unsigned rem
)
1063 memset(&ifr
, 0, sizeof(ifr
));
1064 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
1065 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) < 0)
1068 ifr
.ifr_flags
|= add
;
1069 ifr
.ifr_flags
&= ~rem
;
1070 return ioctl(sock_ioctl
, SIOCSIFFLAGS
, &ifr
);
1082 static bool check_ifaddr(struct nlmsghdr
*hdr
, int ifindex
)
1084 struct ifaddrmsg
*ifa
= NLMSG_DATA(hdr
);
1086 return ifa
->ifa_index
== ifindex
;
1089 static bool check_route(struct nlmsghdr
*hdr
, int ifindex
)
1091 struct rtmsg
*r
= NLMSG_DATA(hdr
);
1092 struct nlattr
*tb
[__RTA_MAX
];
1094 if (r
->rtm_protocol
== RTPROT_KERNEL
&&
1095 r
->rtm_family
== AF_INET6
)
1098 nlmsg_parse(hdr
, sizeof(struct rtmsg
), tb
, __RTA_MAX
- 1, NULL
);
1102 return *(int *)RTA_DATA(tb
[RTA_OIF
]) == ifindex
;
1105 static bool check_rule(struct nlmsghdr
*hdr
, int ifindex
)
1110 static int cb_clear_event(struct nl_msg
*msg
, void *arg
)
1112 struct clear_data
*clr
= arg
;
1113 struct nlmsghdr
*hdr
= nlmsg_hdr(msg
);
1114 bool (*cb
)(struct nlmsghdr
*, int ifindex
);
1120 if (hdr
->nlmsg_type
!= RTM_NEWADDR
)
1126 type
= RTM_DELROUTE
;
1127 if (hdr
->nlmsg_type
!= RTM_NEWROUTE
)
1134 if (hdr
->nlmsg_type
!= RTM_NEWRULE
)
1143 if (!cb(hdr
, clr
->dev
? clr
->dev
->ifindex
: 0))
1146 if (type
== RTM_DELRULE
)
1147 D(SYSTEM
, "Remove a rule\n");
1149 D(SYSTEM
, "Remove %s from device %s\n",
1150 type
== RTM_DELADDR
? "an address" : "a route",
1153 memcpy(nlmsg_hdr(clr
->msg
), hdr
, hdr
->nlmsg_len
);
1154 hdr
= nlmsg_hdr(clr
->msg
);
1155 hdr
->nlmsg_type
= type
;
1156 hdr
->nlmsg_flags
= NLM_F_REQUEST
;
1158 nl_socket_disable_auto_ack(sock_rtnl
);
1159 ret
= nl_send_auto_complete(sock_rtnl
, clr
->msg
);
1161 if (type
== RTM_DELRULE
)
1162 D(SYSTEM
, "Error deleting a rule: %d\n", ret
);
1164 D(SYSTEM
, "Error deleting %s from device '%s': %d\n",
1165 type
== RTM_DELADDR
? "an address" : "a route",
1166 clr
->dev
->ifname
, ret
);
1169 nl_socket_enable_auto_ack(sock_rtnl
);
1175 cb_finish_event(struct nl_msg
*msg
, void *arg
)
1183 error_handler(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1186 *pending
= err
->error
;
1191 system_if_clear_entries(struct device
*dev
, int type
, int af
)
1193 struct clear_data clr
;
1195 struct rtmsg rtm
= {
1197 .rtm_flags
= RTM_F_CLONED
,
1199 int flags
= NLM_F_DUMP
;
1208 clr
.size
= sizeof(struct rtgenmsg
);
1211 clr
.size
= sizeof(struct rtmsg
);
1217 cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1221 clr
.msg
= nlmsg_alloc_simple(type
, flags
);
1225 nlmsg_append(clr
.msg
, &rtm
, clr
.size
, 0);
1226 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_clear_event
, &clr
);
1227 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, cb_finish_event
, &pending
);
1228 nl_cb_err(cb
, NL_CB_CUSTOM
, error_handler
, &pending
);
1230 if (nl_send_auto_complete(sock_rtnl
, clr
.msg
) < 0)
1234 nl_recvmsgs(sock_rtnl
, cb
);
1237 nlmsg_free(clr
.msg
);
1243 * Clear bridge (membership) state and bring down device
1245 void system_if_clear_state(struct device
*dev
)
1247 static char buf
[256];
1249 device_set_ifindex(dev
, system_if_resolve(dev
));
1251 if (dev
->external
|| !dev
->ifindex
)
1254 system_if_flags(dev
->ifname
, 0, IFF_UP
);
1256 if (system_is_bridge(dev
->ifname
)) {
1257 D(SYSTEM
, "Delete existing bridge named '%s'\n", dev
->ifname
);
1258 system_bridge_delbr(dev
);
1262 bridge
= system_get_bridge(dev
->ifname
, buf
, sizeof(buf
));
1264 D(SYSTEM
, "Remove device '%s' from bridge '%s'\n", dev
->ifname
, bridge
);
1265 system_bridge_if(bridge
, dev
, SIOCBRDELIF
, NULL
);
1268 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET
);
1269 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET
);
1270 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET6
);
1271 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET6
);
1272 system_if_clear_entries(dev
, RTM_GETNEIGH
, AF_INET
);
1273 system_if_clear_entries(dev
, RTM_GETNEIGH
, AF_INET6
);
1274 system_set_disable_ipv6(dev
, "0");
1277 static inline unsigned long
1278 sec_to_jiffies(int val
)
1280 return (unsigned long) val
* 100;
1283 int system_bridge_addbr(struct device
*bridge
, struct bridge_config
*cfg
)
1285 struct nlattr
*linkinfo
, *data
;
1290 msg
= system_ifinfo_msg(bridge
->ifname
, RTM_NEWLINK
, NLM_F_CREATE
| NLM_F_EXCL
);
1294 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1295 goto nla_put_failure
;
1297 nla_put_string(msg
, IFLA_INFO_KIND
, "bridge");
1299 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1300 goto nla_put_failure
;
1302 nla_put_u32(msg
, IFLA_BR_STP_STATE
, cfg
->stp
);
1303 nla_put_u32(msg
, IFLA_BR_FORWARD_DELAY
, sec_to_jiffies(cfg
->forward_delay
));
1304 nla_put_u8(msg
, IFLA_BR_MCAST_SNOOPING
, !!cfg
->igmp_snoop
);
1305 nla_put_u8(msg
, IFLA_BR_MCAST_QUERIER
, !!cfg
->multicast_querier
);
1306 nla_put_u32(msg
, IFLA_BR_MCAST_HASH_MAX
, cfg
->hash_max
);
1308 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
)
1309 nla_put_u8(msg
, IFLA_BR_MCAST_ROUTER
, !!bridge
->settings
.multicast_router
);
1311 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
) {
1312 nla_put_u32(msg
, IFLA_BR_MCAST_STARTUP_QUERY_CNT
, cfg
->robustness
);
1313 nla_put_u32(msg
, IFLA_BR_MCAST_LAST_MEMBER_CNT
, cfg
->robustness
);
1316 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
)
1317 nla_put_u64(msg
, IFLA_BR_MCAST_QUERY_INTVL
, cfg
->query_interval
);
1319 if (cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
)
1320 nla_put_u64(msg
, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL
, cfg
->query_response_interval
);
1322 if (cfg
->flags
& BRIDGE_OPT_LAST_MEMBER_INTERVAL
)
1323 nla_put_u64(msg
, IFLA_BR_MCAST_LAST_MEMBER_INTVL
, cfg
->last_member_interval
);
1325 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
||
1326 cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
||
1327 cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
1328 val
= cfg
->robustness
* cfg
->query_interval
+
1329 cfg
->query_response_interval
;
1331 nla_put_u64(msg
, IFLA_BR_MCAST_MEMBERSHIP_INTVL
, val
);
1333 val
-= cfg
->query_response_interval
/ 2;
1335 nla_put_u64(msg
, IFLA_BR_MCAST_QUERIER_INTVL
, val
);
1338 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1339 val
= cfg
->query_interval
/ 4;
1341 nla_put_u64(msg
, IFLA_BR_MCAST_STARTUP_QUERY_INTVL
, val
);
1344 nla_put_u8(msg
, IFLA_BR_VLAN_FILTERING
, !!cfg
->vlan_filtering
);
1345 nla_put_u16(msg
, IFLA_BR_PRIORITY
, cfg
->priority
);
1346 nla_put_u32(msg
, IFLA_BR_HELLO_TIME
, sec_to_jiffies(cfg
->hello_time
));
1347 nla_put_u32(msg
, IFLA_BR_MAX_AGE
, sec_to_jiffies(cfg
->max_age
));
1349 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
)
1350 nla_put_u32(msg
, IFLA_BR_AGEING_TIME
, sec_to_jiffies(cfg
->ageing_time
));
1352 nla_nest_end(msg
, data
);
1353 nla_nest_end(msg
, linkinfo
);
1355 rv
= system_rtnl_call(msg
);
1357 D(SYSTEM
, "Error adding bridge '%s': %d\n", bridge
->ifname
, rv
);
1366 int system_macvlan_add(struct device
*macvlan
, struct device
*dev
, struct macvlan_config
*cfg
)
1369 struct nlattr
*linkinfo
, *data
;
1371 static const struct {
1373 enum macvlan_mode val
;
1375 { "private", MACVLAN_MODE_PRIVATE
},
1376 { "vepa", MACVLAN_MODE_VEPA
},
1377 { "bridge", MACVLAN_MODE_BRIDGE
},
1378 { "passthru", MACVLAN_MODE_PASSTHRU
},
1381 msg
= system_ifinfo_msg(macvlan
->ifname
, RTM_NEWLINK
, NLM_F_CREATE
| NLM_F_EXCL
);
1385 if (cfg
->flags
& MACVLAN_OPT_MACADDR
)
1386 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1387 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1389 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1390 goto nla_put_failure
;
1392 nla_put_string(msg
, IFLA_INFO_KIND
, "macvlan");
1394 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1395 goto nla_put_failure
;
1398 for (i
= 0; i
< ARRAY_SIZE(modes
); i
++) {
1399 if (strcmp(cfg
->mode
, modes
[i
].name
) != 0)
1402 nla_put_u32(msg
, IFLA_MACVLAN_MODE
, modes
[i
].val
);
1407 nla_nest_end(msg
, data
);
1408 nla_nest_end(msg
, linkinfo
);
1410 rv
= system_rtnl_call(msg
);
1412 D(SYSTEM
, "Error adding macvlan '%s' over '%s': %d\n", macvlan
->ifname
, dev
->ifname
, rv
);
1421 int system_link_netns_move(struct device
*dev
, int netns_fd
, const char *target_ifname
)
1429 index
= system_if_resolve(dev
);
1430 msg
= __system_ifinfo_msg(AF_UNSPEC
, index
, target_ifname
, RTM_NEWLINK
, 0);
1434 nla_put_u32(msg
, IFLA_NET_NS_FD
, netns_fd
);
1435 return system_rtnl_call(msg
);
1438 int system_macvlan_del(struct device
*macvlan
)
1440 return system_link_del(macvlan
->ifname
);
1443 int system_netns_open(const pid_t target_ns
)
1445 char pid_net_path
[PATH_MAX
];
1447 snprintf(pid_net_path
, sizeof(pid_net_path
), "/proc/%u/ns/net", target_ns
);
1449 return open(pid_net_path
, O_RDONLY
);
1452 int system_netns_set(int netns_fd
)
1454 return setns(netns_fd
, CLONE_NEWNET
);
1457 int system_veth_add(struct device
*veth
, struct veth_config
*cfg
)
1460 struct ifinfomsg empty_iim
= {};
1461 struct nlattr
*linkinfo
, *data
, *veth_info
;
1464 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1469 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1471 if (cfg
->flags
& VETH_OPT_MACADDR
)
1472 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1473 nla_put_string(msg
, IFLA_IFNAME
, veth
->ifname
);
1475 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1476 goto nla_put_failure
;
1478 nla_put_string(msg
, IFLA_INFO_KIND
, "veth");
1480 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1481 goto nla_put_failure
;
1483 if (!(veth_info
= nla_nest_start(msg
, VETH_INFO_PEER
)))
1484 goto nla_put_failure
;
1486 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1488 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1489 nla_put_string(msg
, IFLA_IFNAME
, cfg
->peer_name
);
1490 if (cfg
->flags
& VETH_OPT_PEER_MACADDR
)
1491 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->peer_macaddr
), cfg
->peer_macaddr
);
1493 nla_nest_end(msg
, veth_info
);
1494 nla_nest_end(msg
, data
);
1495 nla_nest_end(msg
, linkinfo
);
1497 rv
= system_rtnl_call(msg
);
1499 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1500 D(SYSTEM
, "Error adding veth '%s' with peer '%s': %d\n", veth
->ifname
, cfg
->peer_name
, rv
);
1502 D(SYSTEM
, "Error adding veth '%s': %d\n", veth
->ifname
, rv
);
1512 int system_veth_del(struct device
*veth
)
1514 return system_link_del(veth
->ifname
);
1517 static int system_vlan(struct device
*dev
, int id
)
1519 struct vlan_ioctl_args ifr
= {
1520 .cmd
= SET_VLAN_NAME_TYPE_CMD
,
1521 .u
.name_type
= VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
,
1524 if (ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
) < 0)
1528 ifr
.cmd
= DEL_VLAN_CMD
;
1531 ifr
.cmd
= ADD_VLAN_CMD
;
1534 strncpy(ifr
.device1
, dev
->ifname
, sizeof(ifr
.device1
));
1535 return ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
1538 int system_vlan_add(struct device
*dev
, int id
)
1540 return system_vlan(dev
, id
);
1543 int system_vlan_del(struct device
*dev
)
1545 return system_vlan(dev
, -1);
1548 int system_vlandev_add(struct device
*vlandev
, struct device
*dev
, struct vlandev_config
*cfg
)
1551 struct nlattr
*linkinfo
, *data
, *qos
;
1552 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
};
1553 struct vlan_qos_mapping
*elem
;
1554 struct ifla_vlan_qos_mapping nl_qos_map
;
1557 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1562 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1563 nla_put_string(msg
, IFLA_IFNAME
, vlandev
->ifname
);
1564 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1566 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1567 goto nla_put_failure
;
1569 nla_put_string(msg
, IFLA_INFO_KIND
, "vlan");
1571 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1572 goto nla_put_failure
;
1574 nla_put_u16(msg
, IFLA_VLAN_ID
, cfg
->vid
);
1576 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
1577 nla_put_u16(msg
, IFLA_VLAN_PROTOCOL
, htons(cfg
->proto
));
1579 if(cfg
->proto
== VLAN_PROTO_8021AD
)
1580 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
);
1583 if (!(qos
= nla_nest_start(msg
, IFLA_VLAN_INGRESS_QOS
)))
1584 goto nla_put_failure
;
1586 vlist_simple_for_each_element(&cfg
->ingress_qos_mapping_list
, elem
, node
) {
1587 nl_qos_map
.from
= elem
->from
;
1588 nl_qos_map
.to
= elem
->to
;
1589 nla_put(msg
, IFLA_VLAN_QOS_MAPPING
, sizeof(nl_qos_map
), &nl_qos_map
);
1591 nla_nest_end(msg
, qos
);
1593 if (!(qos
= nla_nest_start(msg
, IFLA_VLAN_EGRESS_QOS
)))
1594 goto nla_put_failure
;
1596 vlist_simple_for_each_element(&cfg
->egress_qos_mapping_list
, elem
, node
) {
1597 nl_qos_map
.from
= elem
->from
;
1598 nl_qos_map
.to
= elem
->to
;
1599 nla_put(msg
, IFLA_VLAN_QOS_MAPPING
, sizeof(nl_qos_map
), &nl_qos_map
);
1601 nla_nest_end(msg
, qos
);
1603 nla_nest_end(msg
, data
);
1604 nla_nest_end(msg
, linkinfo
);
1606 rv
= system_rtnl_call(msg
);
1608 D(SYSTEM
, "Error adding vlandev '%s' over '%s': %d\n", vlandev
->ifname
, dev
->ifname
, rv
);
1617 int system_vlandev_del(struct device
*vlandev
)
1619 return system_link_del(vlandev
->ifname
);
1623 system_set_ethtool_settings(struct device
*dev
, struct device_settings
*s
)
1625 struct ethtool_cmd ecmd
= {
1626 .cmd
= ETHTOOL_GSET
,
1628 struct ifreq ifr
= {
1629 .ifr_data
= (caddr_t
)&ecmd
,
1631 static const struct {
1636 { 10, ETHTOOL_LINK_MODE_10baseT_Half_BIT
, ETHTOOL_LINK_MODE_10baseT_Full_BIT
},
1637 { 100, ETHTOOL_LINK_MODE_100baseT_Half_BIT
, ETHTOOL_LINK_MODE_100baseT_Full_BIT
},
1638 { 1000, ETHTOOL_LINK_MODE_1000baseT_Half_BIT
, ETHTOOL_LINK_MODE_1000baseT_Full_BIT
},
1643 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1645 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0)
1648 adv
= ecmd
.supported
;
1649 for (i
= 0; i
< ARRAY_SIZE(speed_mask
); i
++) {
1650 if (s
->flags
& DEV_OPT_DUPLEX
) {
1651 int bit
= s
->duplex
? speed_mask
[i
].bit_half
: speed_mask
[i
].bit_full
;
1655 if (!(s
->flags
& DEV_OPT_SPEED
) ||
1656 s
->speed
== speed_mask
[i
].speed
)
1659 adv
&= ~(1 << speed_mask
[i
].bit_full
);
1660 adv
&= ~(1 << speed_mask
[i
].bit_half
);
1664 if (ecmd
.autoneg
&& ecmd
.advertising
== adv
)
1668 ecmd
.advertising
= adv
;
1669 ecmd
.cmd
= ETHTOOL_SSET
;
1670 ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
);
1674 system_if_get_settings(struct device
*dev
, struct device_settings
*s
)
1679 memset(&ifr
, 0, sizeof(ifr
));
1680 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1682 if (ioctl(sock_ioctl
, SIOCGIFMTU
, &ifr
) == 0) {
1683 s
->mtu
= ifr
.ifr_mtu
;
1684 s
->flags
|= DEV_OPT_MTU
;
1687 s
->mtu6
= system_update_ipv6_mtu(dev
, 0);
1689 s
->flags
|= DEV_OPT_MTU6
;
1691 if (ioctl(sock_ioctl
, SIOCGIFTXQLEN
, &ifr
) == 0) {
1692 s
->txqueuelen
= ifr
.ifr_qlen
;
1693 s
->flags
|= DEV_OPT_TXQUEUELEN
;
1696 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0) {
1697 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
1698 s
->flags
|= DEV_OPT_MACADDR
;
1701 if (!system_get_disable_ipv6(dev
, buf
, sizeof(buf
))) {
1702 s
->ipv6
= !strtoul(buf
, NULL
, 0);
1703 s
->flags
|= DEV_OPT_IPV6
;
1706 if (!system_get_ip6segmentrouting(dev
, buf
, sizeof(buf
))) {
1707 s
->ip6segmentrouting
= strtoul(buf
, NULL
, 0);
1708 s
->flags
|= DEV_OPT_IP6SEGMENTROUTING
;
1711 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) == 0) {
1712 s
->promisc
= ifr
.ifr_flags
& IFF_PROMISC
;
1713 s
->flags
|= DEV_OPT_PROMISC
;
1715 s
->multicast
= ifr
.ifr_flags
& IFF_MULTICAST
;
1716 s
->flags
|= DEV_OPT_MULTICAST
;
1719 if (!system_get_rpfilter(dev
, buf
, sizeof(buf
))) {
1720 s
->rpfilter
= strtoul(buf
, NULL
, 0);
1721 s
->flags
|= DEV_OPT_RPFILTER
;
1724 if (!system_get_acceptlocal(dev
, buf
, sizeof(buf
))) {
1725 s
->acceptlocal
= strtoul(buf
, NULL
, 0);
1726 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
1729 if (!system_get_igmpversion(dev
, buf
, sizeof(buf
))) {
1730 s
->igmpversion
= strtoul(buf
, NULL
, 0);
1731 s
->flags
|= DEV_OPT_IGMPVERSION
;
1734 if (!system_get_mldversion(dev
, buf
, sizeof(buf
))) {
1735 s
->mldversion
= strtoul(buf
, NULL
, 0);
1736 s
->flags
|= DEV_OPT_MLDVERSION
;
1739 if (!system_get_neigh4reachabletime(dev
, buf
, sizeof(buf
))) {
1740 s
->neigh4reachabletime
= strtoul(buf
, NULL
, 0);
1741 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1744 if (!system_get_neigh6reachabletime(dev
, buf
, sizeof(buf
))) {
1745 s
->neigh6reachabletime
= strtoul(buf
, NULL
, 0);
1746 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1749 if (!system_get_neigh4locktime(dev
, buf
, sizeof(buf
))) {
1750 s
->neigh4locktime
= strtol(buf
, NULL
, 0);
1751 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
1754 if (!system_get_neigh4gcstaletime(dev
, buf
, sizeof(buf
))) {
1755 s
->neigh4gcstaletime
= strtoul(buf
, NULL
, 0);
1756 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1759 if (!system_get_neigh6gcstaletime(dev
, buf
, sizeof(buf
))) {
1760 s
->neigh6gcstaletime
= strtoul(buf
, NULL
, 0);
1761 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1764 if (!system_get_dadtransmits(dev
, buf
, sizeof(buf
))) {
1765 s
->dadtransmits
= strtoul(buf
, NULL
, 0);
1766 s
->flags
|= DEV_OPT_DADTRANSMITS
;
1769 if (!system_get_sendredirects(dev
, buf
, sizeof(buf
))) {
1770 s
->sendredirects
= strtoul(buf
, NULL
, 0);
1771 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
1774 if (!system_get_drop_v4_unicast_in_l2_multicast(dev
, buf
, sizeof(buf
))) {
1775 s
->drop_v4_unicast_in_l2_multicast
= strtoul(buf
, NULL
, 0);
1776 s
->flags
|= DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
;
1779 if (!system_get_drop_v6_unicast_in_l2_multicast(dev
, buf
, sizeof(buf
))) {
1780 s
->drop_v6_unicast_in_l2_multicast
= strtoul(buf
, NULL
, 0);
1781 s
->flags
|= DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
;
1784 if (!system_get_drop_gratuitous_arp(dev
, buf
, sizeof(buf
))) {
1785 s
->drop_gratuitous_arp
= strtoul(buf
, NULL
, 0);
1786 s
->flags
|= DEV_OPT_DROP_GRATUITOUS_ARP
;
1789 if (!system_get_drop_unsolicited_na(dev
, buf
, sizeof(buf
))) {
1790 s
->drop_unsolicited_na
= strtoul(buf
, NULL
, 0);
1791 s
->flags
|= DEV_OPT_DROP_UNSOLICITED_NA
;
1794 if (!system_get_arp_accept(dev
, buf
, sizeof(buf
))) {
1795 s
->arp_accept
= strtoul(buf
, NULL
, 0);
1796 s
->flags
|= DEV_OPT_ARP_ACCEPT
;
1801 system_if_apply_settings(struct device
*dev
, struct device_settings
*s
, uint64_t apply_mask
)
1806 apply_mask
&= s
->flags
;
1808 memset(&ifr
, 0, sizeof(ifr
));
1809 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1810 if (apply_mask
& DEV_OPT_MTU
) {
1811 ifr
.ifr_mtu
= s
->mtu
;
1812 if (ioctl(sock_ioctl
, SIOCSIFMTU
, &ifr
) < 0)
1813 s
->flags
&= ~DEV_OPT_MTU
;
1815 if (apply_mask
& DEV_OPT_MTU6
) {
1816 system_update_ipv6_mtu(dev
, s
->mtu6
);
1818 if (apply_mask
& DEV_OPT_TXQUEUELEN
) {
1819 ifr
.ifr_qlen
= s
->txqueuelen
;
1820 if (ioctl(sock_ioctl
, SIOCSIFTXQLEN
, &ifr
) < 0)
1821 s
->flags
&= ~DEV_OPT_TXQUEUELEN
;
1823 if ((apply_mask
& (DEV_OPT_MACADDR
| DEV_OPT_DEFAULT_MACADDR
)) && !dev
->external
) {
1824 ifr
.ifr_hwaddr
.sa_family
= ARPHRD_ETHER
;
1825 memcpy(&ifr
.ifr_hwaddr
.sa_data
, s
->macaddr
, sizeof(s
->macaddr
));
1826 if (ioctl(sock_ioctl
, SIOCSIFHWADDR
, &ifr
) < 0)
1827 s
->flags
&= ~DEV_OPT_MACADDR
;
1829 if (apply_mask
& DEV_OPT_IPV6
)
1830 system_set_disable_ipv6(dev
, s
->ipv6
? "0" : "1");
1831 if (s
->flags
& DEV_OPT_IP6SEGMENTROUTING
& apply_mask
) {
1832 struct device dummy
= {
1835 bool ip6segmentrouting
= device_check_ip6segmentrouting();
1837 system_set_ip6segmentrouting(dev
, s
->ip6segmentrouting
? "1" : "0");
1838 system_set_ip6segmentrouting(&dummy
, ip6segmentrouting
? "1" : "0");
1840 if (apply_mask
& DEV_OPT_PROMISC
) {
1841 if (system_if_flags(dev
->ifname
, s
->promisc
? IFF_PROMISC
: 0,
1842 !s
->promisc
? IFF_PROMISC
: 0) < 0)
1843 s
->flags
&= ~DEV_OPT_PROMISC
;
1845 if (apply_mask
& DEV_OPT_RPFILTER
) {
1846 snprintf(buf
, sizeof(buf
), "%u", s
->rpfilter
);
1847 system_set_rpfilter(dev
, buf
);
1849 if (apply_mask
& DEV_OPT_ACCEPTLOCAL
)
1850 system_set_acceptlocal(dev
, s
->acceptlocal
? "1" : "0");
1851 if (apply_mask
& DEV_OPT_IGMPVERSION
) {
1852 snprintf(buf
, sizeof(buf
), "%u", s
->igmpversion
);
1853 system_set_igmpversion(dev
, buf
);
1855 if (apply_mask
& DEV_OPT_MLDVERSION
) {
1856 snprintf(buf
, sizeof(buf
), "%u", s
->mldversion
);
1857 system_set_mldversion(dev
, buf
);
1859 if (apply_mask
& DEV_OPT_NEIGHREACHABLETIME
) {
1860 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4reachabletime
);
1861 system_set_neigh4reachabletime(dev
, buf
);
1862 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6reachabletime
);
1863 system_set_neigh6reachabletime(dev
, buf
);
1865 if (apply_mask
& DEV_OPT_NEIGHLOCKTIME
) {
1866 snprintf(buf
, sizeof(buf
), "%d", s
->neigh4locktime
);
1867 system_set_neigh4locktime(dev
, buf
);
1869 if (apply_mask
& DEV_OPT_NEIGHGCSTALETIME
) {
1870 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4gcstaletime
);
1871 system_set_neigh4gcstaletime(dev
, buf
);
1872 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6gcstaletime
);
1873 system_set_neigh6gcstaletime(dev
, buf
);
1875 if (apply_mask
& DEV_OPT_DADTRANSMITS
) {
1876 snprintf(buf
, sizeof(buf
), "%u", s
->dadtransmits
);
1877 system_set_dadtransmits(dev
, buf
);
1879 if (apply_mask
& DEV_OPT_MULTICAST
) {
1880 if (system_if_flags(dev
->ifname
, s
->multicast
? IFF_MULTICAST
: 0,
1881 !s
->multicast
? IFF_MULTICAST
: 0) < 0)
1882 s
->flags
&= ~DEV_OPT_MULTICAST
;
1884 if (apply_mask
& DEV_OPT_SENDREDIRECTS
)
1885 system_set_sendredirects(dev
, s
->sendredirects
? "1" : "0");
1886 if (apply_mask
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
)
1887 system_set_drop_v4_unicast_in_l2_multicast(dev
, s
->drop_v4_unicast_in_l2_multicast
? "1" : "0");
1888 if (apply_mask
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
)
1889 system_set_drop_v6_unicast_in_l2_multicast(dev
, s
->drop_v6_unicast_in_l2_multicast
? "1" : "0");
1890 if (apply_mask
& DEV_OPT_DROP_GRATUITOUS_ARP
)
1891 system_set_drop_gratuitous_arp(dev
, s
->drop_gratuitous_arp
? "1" : "0");
1892 if (apply_mask
& DEV_OPT_DROP_UNSOLICITED_NA
)
1893 system_set_drop_unsolicited_na(dev
, s
->drop_unsolicited_na
? "1" : "0");
1894 if (apply_mask
& DEV_OPT_ARP_ACCEPT
)
1895 system_set_arp_accept(dev
, s
->arp_accept
? "1" : "0");
1896 system_set_ethtool_settings(dev
, s
);
1899 int system_if_up(struct device
*dev
)
1901 return system_if_flags(dev
->ifname
, IFF_UP
, 0);
1904 int system_if_down(struct device
*dev
)
1906 return system_if_flags(dev
->ifname
, 0, IFF_UP
);
1909 struct if_check_data
{
1915 #ifndef IFF_LOWER_UP
1916 #define IFF_LOWER_UP 0x10000
1919 static int cb_if_check_valid(struct nl_msg
*msg
, void *arg
)
1921 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
1922 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
1923 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1925 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
1928 if (chk
->dev
->type
== &simple_device_type
)
1929 device_set_present(chk
->dev
, ifi
->ifi_index
> 0 ? true : false);
1930 device_set_link(chk
->dev
, ifi
->ifi_flags
& IFF_LOWER_UP
? true : false);
1935 static int cb_if_check_ack(struct nl_msg
*msg
, void *arg
)
1937 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1942 static int cb_if_check_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1944 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1946 if (chk
->dev
->type
== &simple_device_type
)
1947 device_set_present(chk
->dev
, false);
1948 device_set_link(chk
->dev
, false);
1949 chk
->pending
= err
->error
;
1954 struct bridge_vlan_check_data
{
1955 struct device
*check_dev
;
1961 static void bridge_vlan_check_port(struct bridge_vlan_check_data
*data
,
1962 struct bridge_vlan_port
*port
,
1963 struct bridge_vlan_info
*vinfo
)
1965 uint16_t flags
= 0, diff
, mask
;
1967 if (port
->flags
& BRVLAN_F_PVID
)
1968 flags
|= BRIDGE_VLAN_INFO_PVID
;
1969 if (port
->flags
& BRVLAN_F_UNTAGGED
)
1970 flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
1972 diff
= vinfo
->flags
^ flags
;
1973 mask
= BRVLAN_F_UNTAGGED
| (flags
& BRIDGE_VLAN_INFO_PVID
);
1976 data
->pending
= false;
1982 static void bridge_vlan_check_attr(struct bridge_vlan_check_data
*data
,
1983 struct rtattr
*attr
)
1985 struct bridge_vlan_hotplug_port
*port
;
1986 struct bridge_vlan_info
*vinfo
;
1987 struct bridge_vlan
*vlan
;
1989 int rem
= RTA_PAYLOAD(attr
);
1992 for (cur
= RTA_DATA(attr
); RTA_OK(cur
, rem
); cur
= RTA_NEXT(cur
, rem
)) {
1993 if (cur
->rta_type
!= IFLA_BRIDGE_VLAN_INFO
)
1996 vinfo
= RTA_DATA(cur
);
1997 vlan
= vlist_find(&data
->check_dev
->vlans
, &vinfo
->vid
, vlan
, node
);
2000 data
->pending
= false;
2004 for (i
= 0; i
< vlan
->n_ports
; i
++)
2005 if (!vlan
->ports
[i
].check
)
2006 bridge_vlan_check_port(data
, &vlan
->ports
[i
], vinfo
);
2008 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
)
2009 if (!port
->port
.check
)
2010 bridge_vlan_check_port(data
, &port
->port
, vinfo
);
2014 static int bridge_vlan_check_cb(struct nl_msg
*msg
, void *arg
)
2016 struct bridge_vlan_check_data
*data
= arg
;
2017 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
2018 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
2019 struct rtattr
*attr
;
2022 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
2025 if (ifi
->ifi_family
!= AF_BRIDGE
)
2028 if (ifi
->ifi_index
!= data
->ifindex
)
2031 attr
= IFLA_RTA(ifi
);
2032 rem
= nh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*ifi
));
2033 while (RTA_OK(attr
, rem
)) {
2034 if (attr
->rta_type
== IFLA_AF_SPEC
)
2035 bridge_vlan_check_attr(data
, attr
);
2037 attr
= RTA_NEXT(attr
, rem
);
2043 static int bridge_vlan_ack_cb(struct nl_msg
*msg
, void *arg
)
2045 struct bridge_vlan_check_data
*data
= arg
;
2046 data
->pending
= false;
2050 static int bridge_vlan_error_cb(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
2052 struct bridge_vlan_check_data
*data
= arg
;
2053 data
->pending
= false;
2057 int system_bridge_vlan_check(struct device
*dev
, char *ifname
)
2059 struct bridge_vlan_check_data data
= {
2061 .ifindex
= if_nametoindex(ifname
),
2065 static struct ifinfomsg ifi
= {
2066 .ifi_family
= AF_BRIDGE
2068 static struct rtattr ext_req
= {
2069 .rta_type
= IFLA_EXT_MASK
,
2070 .rta_len
= RTA_LENGTH(sizeof(uint32_t)),
2072 uint32_t filter
= RTEXT_FILTER_BRVLAN
;
2073 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
2074 struct bridge_vlan
*vlan
;
2081 msg
= nlmsg_alloc_simple(RTM_GETLINK
, NLM_F_DUMP
);
2083 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
2084 nlmsg_append(msg
, &ext_req
, sizeof(ext_req
), NLMSG_ALIGNTO
) ||
2085 nlmsg_append(msg
, &filter
, sizeof(filter
), 0))
2088 vlist_for_each_element(&dev
->vlans
, vlan
, node
) {
2089 struct bridge_vlan_hotplug_port
*port
;
2091 for (i
= 0; i
< vlan
->n_ports
; i
++) {
2092 if (!strcmp(vlan
->ports
[i
].ifname
, ifname
))
2093 vlan
->ports
[i
].check
= 0;
2095 vlan
->ports
[i
].check
= -1;
2098 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
2099 if (!strcmp(port
->port
.ifname
, ifname
))
2100 port
->port
.check
= 0;
2102 port
->port
.check
= -1;
2106 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, bridge_vlan_check_cb
, &data
);
2107 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, bridge_vlan_ack_cb
, &data
);
2108 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, bridge_vlan_ack_cb
, &data
);
2109 nl_cb_err(cb
, NL_CB_CUSTOM
, bridge_vlan_error_cb
, &data
);
2111 if (nl_send_auto_complete(sock_rtnl
, msg
) < 0)
2115 while (data
.pending
)
2116 nl_recvmsgs(sock_rtnl
, cb
);
2118 vlist_for_each_element(&dev
->vlans
, vlan
, node
) {
2119 struct bridge_vlan_hotplug_port
*port
;
2121 for (i
= 0; i
< vlan
->n_ports
; i
++) {
2122 if (!vlan
->ports
[i
].check
) {
2128 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
2129 if (!port
->port
.check
) {
2145 int system_if_check(struct device
*dev
)
2147 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
2149 struct ifinfomsg ifi
= {
2150 .ifi_family
= AF_UNSPEC
,
2153 struct if_check_data chk
= {
2162 msg
= nlmsg_alloc_simple(RTM_GETLINK
, 0);
2166 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
2167 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
2170 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_check_valid
, &chk
);
2171 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_check_ack
, &chk
);
2172 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_check_error
, &chk
);
2174 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
2178 while (chk
.pending
> 0)
2179 nl_recvmsgs(sock_rtnl
, cb
);
2191 system_if_get_parent(struct device
*dev
)
2193 char buf
[64], *devname
;
2194 int ifindex
, iflink
;
2196 if (system_get_dev_sysfs("iflink", dev
->ifname
, buf
, sizeof(buf
)) < 0)
2199 iflink
= strtoul(buf
, NULL
, 0);
2200 ifindex
= system_if_resolve(dev
);
2201 if (!iflink
|| iflink
== ifindex
)
2204 devname
= if_indextoname(iflink
, buf
);
2208 return device_get(devname
, true);
2212 read_string_file(int dir_fd
, const char *file
, char *buf
, int len
)
2218 fd
= openat(dir_fd
, file
, O_RDONLY
);
2223 len
= read(fd
, buf
, len
- 1);
2227 } else if (len
> 0) {
2230 c
= strchr(buf
, '\n');
2243 read_uint64_file(int dir_fd
, const char *file
, uint64_t *val
)
2248 ret
= read_string_file(dir_fd
, file
, buf
, sizeof(buf
));
2250 *val
= strtoull(buf
, NULL
, 0);
2255 /* Assume advertised flags == supported flags */
2256 static const struct {
2259 } ethtool_link_modes
[] = {
2260 { ADVERTISED_10baseT_Half
, "10baseT-H" },
2261 { ADVERTISED_10baseT_Full
, "10baseT-F" },
2262 { ADVERTISED_100baseT_Half
, "100baseT-H" },
2263 { ADVERTISED_100baseT_Full
, "100baseT-F" },
2264 { ADVERTISED_1000baseT_Half
, "1000baseT-H" },
2265 { ADVERTISED_1000baseT_Full
, "1000baseT-F" },
2266 { ADVERTISED_1000baseKX_Full
, "1000baseKX-F" },
2267 { ADVERTISED_2500baseX_Full
, "2500baseX-F" },
2268 { ADVERTISED_10000baseT_Full
, "10000baseT-F" },
2269 { ADVERTISED_10000baseKX4_Full
, "10000baseKX4-F" },
2270 { ADVERTISED_10000baseKR_Full
, "10000baseKR-F" },
2271 { ADVERTISED_20000baseMLD2_Full
, "20000baseMLD2-F" },
2272 { ADVERTISED_20000baseKR2_Full
, "20000baseKR2-F" },
2273 { ADVERTISED_40000baseKR4_Full
, "40000baseKR4-F" },
2274 { ADVERTISED_40000baseCR4_Full
, "40000baseCR4-F" },
2275 { ADVERTISED_40000baseSR4_Full
, "40000baseSR4-F" },
2276 { ADVERTISED_40000baseLR4_Full
, "40000baseLR4-F" },
2277 #ifdef ADVERTISED_56000baseKR4_Full
2278 { ADVERTISED_56000baseKR4_Full
, "56000baseKR4-F" },
2279 { ADVERTISED_56000baseCR4_Full
, "56000baseCR4-F" },
2280 { ADVERTISED_56000baseSR4_Full
, "56000baseSR4-F" },
2281 { ADVERTISED_56000baseLR4_Full
, "56000baseLR4-F" },
2285 static void system_add_link_modes(struct blob_buf
*b
, __u32 mask
)
2288 for (i
= 0; i
< ARRAY_SIZE(ethtool_link_modes
); i
++) {
2289 if (mask
& ethtool_link_modes
[i
].mask
)
2290 blobmsg_add_string(b
, NULL
, ethtool_link_modes
[i
].name
);
2295 system_if_force_external(const char *ifname
)
2299 return stat(dev_sysfs_path(ifname
, "phy80211"), &s
) == 0;
2303 system_netdevtype_name(unsigned short dev_type
)
2307 for (i
= 0; i
< ARRAY_SIZE(netdev_types
); i
++) {
2308 if (netdev_types
[i
].id
== dev_type
)
2309 return netdev_types
[i
].name
;
2312 /* the last key is used by default */
2313 i
= ARRAY_SIZE(netdev_types
) - 1;
2315 return netdev_types
[i
].name
;
2319 system_add_devtype(struct blob_buf
*b
, const char *ifname
)
2324 if (!system_get_dev_sysfs("uevent", ifname
, buf
, sizeof(buf
))) {
2325 const char *info
= "DEVTYPE=";
2326 char *context
= NULL
;
2327 const char *line
= strtok_r(buf
, "\r\n", &context
);
2329 while (line
!= NULL
) {
2330 char *index
= strstr(line
, info
);
2332 if (index
!= NULL
) {
2333 blobmsg_add_string(b
, "devtype", index
+ strlen(info
));
2338 line
= strtok_r(NULL
, "\r\n", &context
);
2343 unsigned short number
= 0;
2344 const char *name
= NULL
;
2346 if (!system_get_dev_sysfs("type", ifname
, buf
, sizeof(buf
))) {
2347 number
= strtoul(buf
, NULL
, 0);
2348 name
= system_netdevtype_name(number
);
2349 blobmsg_add_string(b
, "devtype", name
);
2354 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
2357 ethtool_feature_count(const char *ifname
)
2360 struct ethtool_sset_info hdr
;
2364 .cmd
= ETHTOOL_GSSET_INFO
,
2365 .sset_mask
= 1 << ETH_SS_FEATURES
2369 struct ifreq ifr
= {
2370 .ifr_data
= (void *)&req
2373 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
2375 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0)
2378 if (!req
.hdr
.sset_mask
)
2385 ethtool_feature_index(const char *ifname
, const char *keyname
)
2387 struct ethtool_gstrings
*feature_names
;
2388 struct ifreq ifr
= { 0 };
2389 int32_t n_features
, i
;
2391 n_features
= ethtool_feature_count(ifname
);
2393 if (n_features
<= 0)
2396 feature_names
= calloc(1, sizeof(*feature_names
) + n_features
* ETH_GSTRING_LEN
);
2401 feature_names
->cmd
= ETHTOOL_GSTRINGS
;
2402 feature_names
->string_set
= ETH_SS_FEATURES
;
2403 feature_names
->len
= n_features
;
2405 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
2406 ifr
.ifr_data
= (void *)feature_names
;
2408 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0) {
2409 free(feature_names
);
2414 for (i
= 0; i
< feature_names
->len
; i
++)
2415 if (!strcmp((char *)&feature_names
->data
[i
* ETH_GSTRING_LEN
], keyname
))
2418 if (i
>= feature_names
->len
)
2421 free(feature_names
);
2427 ethtool_feature_value(const char *ifname
, const char *keyname
)
2429 struct ethtool_get_features_block
*feature_block
;
2430 struct ethtool_gfeatures
*feature_values
;
2431 struct ifreq ifr
= { 0 };
2432 int32_t feature_idx
;
2435 feature_idx
= ethtool_feature_index(ifname
, keyname
);
2437 if (feature_idx
< 0)
2440 feature_values
= calloc(1,
2441 sizeof(*feature_values
) +
2442 sizeof(feature_values
->features
[0]) * DIV_ROUND_UP(feature_idx
, 32));
2444 if (!feature_values
)
2447 feature_values
->cmd
= ETHTOOL_GFEATURES
;
2448 feature_values
->size
= DIV_ROUND_UP(feature_idx
, 32);
2450 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
2451 ifr
.ifr_data
= (void *)feature_values
;
2453 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0) {
2454 free(feature_values
);
2459 feature_block
= &feature_values
->features
[feature_idx
/ 32];
2460 active
= feature_block
->active
& (1U << feature_idx
% 32);
2462 free(feature_values
);
2468 system_if_dump_info(struct device
*dev
, struct blob_buf
*b
)
2470 struct ethtool_cmd ecmd
;
2475 memset(&ecmd
, 0, sizeof(ecmd
));
2476 memset(&ifr
, 0, sizeof(ifr
));
2477 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2478 ifr
.ifr_data
= (caddr_t
) &ecmd
;
2479 ecmd
.cmd
= ETHTOOL_GSET
;
2481 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) == 0) {
2482 c
= blobmsg_open_array(b
, "link-advertising");
2483 system_add_link_modes(b
, ecmd
.advertising
);
2484 blobmsg_close_array(b
, c
);
2486 c
= blobmsg_open_array(b
, "link-partner-advertising");
2487 system_add_link_modes(b
, ecmd
.lp_advertising
);
2488 blobmsg_close_array(b
, c
);
2490 c
= blobmsg_open_array(b
, "link-supported");
2491 system_add_link_modes(b
, ecmd
.supported
);
2492 blobmsg_close_array(b
, c
);
2494 s
= blobmsg_alloc_string_buffer(b
, "speed", 8);
2495 snprintf(s
, 8, "%d%c", ethtool_cmd_speed(&ecmd
),
2496 ecmd
.duplex
== DUPLEX_HALF
? 'H' : 'F');
2497 blobmsg_add_string_buffer(b
);
2499 blobmsg_add_u8(b
, "autoneg", !!ecmd
.autoneg
);
2502 blobmsg_add_u8(b
, "hw-tc-offload",
2503 ethtool_feature_value(dev
->ifname
, "hw-tc-offload"));
2505 system_add_devtype(b
, dev
->ifname
);
2511 system_if_dump_stats(struct device
*dev
, struct blob_buf
*b
)
2513 const char *const counters
[] = {
2514 "collisions", "rx_frame_errors", "tx_compressed",
2515 "multicast", "rx_length_errors", "tx_dropped",
2516 "rx_bytes", "rx_missed_errors", "tx_errors",
2517 "rx_compressed", "rx_over_errors", "tx_fifo_errors",
2518 "rx_crc_errors", "rx_packets", "tx_heartbeat_errors",
2519 "rx_dropped", "tx_aborted_errors", "tx_packets",
2520 "rx_errors", "tx_bytes", "tx_window_errors",
2521 "rx_fifo_errors", "tx_carrier_errors",
2527 stats_dir
= open(dev_sysfs_path(dev
->ifname
, "statistics"), O_DIRECTORY
);
2531 for (i
= 0; i
< ARRAY_SIZE(counters
); i
++)
2532 if (read_uint64_file(stats_dir
, counters
[i
], &val
))
2533 blobmsg_add_u64(b
, counters
[i
], val
);
2539 static int system_addr(struct device
*dev
, struct device_addr
*addr
, int cmd
)
2541 bool v4
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
);
2542 int alen
= v4
? 4 : 16;
2543 unsigned int flags
= 0;
2544 struct ifaddrmsg ifa
= {
2545 .ifa_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2546 .ifa_prefixlen
= addr
->mask
,
2547 .ifa_index
= dev
->ifindex
,
2551 if (cmd
== RTM_NEWADDR
)
2552 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
2554 msg
= nlmsg_alloc_simple(cmd
, flags
);
2558 nlmsg_append(msg
, &ifa
, sizeof(ifa
), 0);
2559 nla_put(msg
, IFA_LOCAL
, alen
, &addr
->addr
);
2561 if (addr
->broadcast
)
2562 nla_put_u32(msg
, IFA_BROADCAST
, addr
->broadcast
);
2563 if (addr
->point_to_point
)
2564 nla_put_u32(msg
, IFA_ADDRESS
, addr
->point_to_point
);
2566 time_t now
= system_get_rtime();
2567 struct ifa_cacheinfo cinfo
= {0xffffffffU
, 0xffffffffU
, 0, 0};
2569 if (addr
->preferred_until
) {
2570 int64_t preferred
= addr
->preferred_until
- now
;
2573 else if (preferred
> UINT32_MAX
)
2574 preferred
= UINT32_MAX
;
2576 cinfo
.ifa_prefered
= preferred
;
2579 if (addr
->valid_until
) {
2580 int64_t valid
= addr
->valid_until
- now
;
2585 else if (valid
> UINT32_MAX
)
2588 cinfo
.ifa_valid
= valid
;
2591 nla_put(msg
, IFA_CACHEINFO
, sizeof(cinfo
), &cinfo
);
2593 if (cmd
== RTM_NEWADDR
&& (addr
->flags
& DEVADDR_OFFLINK
))
2594 nla_put_u32(msg
, IFA_FLAGS
, IFA_F_NOPREFIXROUTE
);
2597 return system_rtnl_call(msg
);
2600 int system_add_address(struct device
*dev
, struct device_addr
*addr
)
2602 return system_addr(dev
, addr
, RTM_NEWADDR
);
2605 int system_del_address(struct device
*dev
, struct device_addr
*addr
)
2607 return system_addr(dev
, addr
, RTM_DELADDR
);
2610 static int system_neigh(struct device
*dev
, struct device_neighbor
*neighbor
, int cmd
)
2612 int alen
= ((neighbor
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
2613 unsigned int flags
= 0;
2614 struct ndmsg ndm
= {
2615 .ndm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2616 .ndm_ifindex
= dev
->ifindex
,
2617 .ndm_state
= NUD_PERMANENT
,
2618 .ndm_flags
= (neighbor
->proxy
? NTF_PROXY
: 0) | (neighbor
->router
? NTF_ROUTER
: 0),
2622 if (cmd
== RTM_NEWNEIGH
)
2623 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
2625 msg
= nlmsg_alloc_simple(cmd
, flags
);
2630 nlmsg_append(msg
, &ndm
, sizeof(ndm
), 0);
2632 nla_put(msg
, NDA_DST
, alen
, &neighbor
->addr
);
2633 if (neighbor
->flags
& DEVNEIGH_MAC
)
2634 nla_put(msg
, NDA_LLADDR
, sizeof(neighbor
->macaddr
), &neighbor
->macaddr
);
2637 return system_rtnl_call(msg
);
2640 int system_add_neighbor(struct device
*dev
, struct device_neighbor
*neighbor
)
2642 return system_neigh(dev
, neighbor
, RTM_NEWNEIGH
);
2645 int system_del_neighbor(struct device
*dev
, struct device_neighbor
*neighbor
)
2647 return system_neigh(dev
, neighbor
, RTM_DELNEIGH
);
2650 static int system_rt(struct device
*dev
, struct device_route
*route
, int cmd
)
2652 int alen
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
2654 unsigned int flags
= 0;
2657 have_gw
= !!route
->nexthop
.in
.s_addr
;
2659 have_gw
= route
->nexthop
.in6
.s6_addr32
[0] ||
2660 route
->nexthop
.in6
.s6_addr32
[1] ||
2661 route
->nexthop
.in6
.s6_addr32
[2] ||
2662 route
->nexthop
.in6
.s6_addr32
[3];
2664 unsigned int table
= (route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))
2665 ? route
->table
: RT_TABLE_MAIN
;
2667 struct rtmsg rtm
= {
2668 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2669 .rtm_dst_len
= route
->mask
,
2670 .rtm_src_len
= route
->sourcemask
,
2671 .rtm_table
= (table
< 256) ? table
: RT_TABLE_UNSPEC
,
2672 .rtm_protocol
= (route
->flags
& DEVROUTE_PROTO
) ? route
->proto
: RTPROT_STATIC
,
2673 .rtm_scope
= RT_SCOPE_NOWHERE
,
2674 .rtm_type
= (cmd
== RTM_DELROUTE
) ? 0: RTN_UNICAST
,
2675 .rtm_flags
= (route
->flags
& DEVROUTE_ONLINK
) ? RTNH_F_ONLINK
: 0,
2679 if (cmd
== RTM_NEWROUTE
) {
2680 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
2682 if (!dev
) { /* Add null-route */
2683 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
2684 rtm
.rtm_type
= RTN_UNREACHABLE
;
2687 rtm
.rtm_scope
= (have_gw
) ? RT_SCOPE_UNIVERSE
: RT_SCOPE_LINK
;
2690 if (route
->flags
& DEVROUTE_TYPE
) {
2691 rtm
.rtm_type
= route
->type
;
2692 if (!(route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))) {
2693 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_BROADCAST
||
2694 rtm
.rtm_type
== RTN_NAT
|| rtm
.rtm_type
== RTN_ANYCAST
)
2695 rtm
.rtm_table
= RT_TABLE_LOCAL
;
2698 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_NAT
) {
2699 rtm
.rtm_scope
= RT_SCOPE_HOST
;
2700 } else if (rtm
.rtm_type
== RTN_BROADCAST
|| rtm
.rtm_type
== RTN_MULTICAST
||
2701 rtm
.rtm_type
== RTN_ANYCAST
) {
2702 rtm
.rtm_scope
= RT_SCOPE_LINK
;
2703 } else if (rtm
.rtm_type
== RTN_BLACKHOLE
|| rtm
.rtm_type
== RTN_UNREACHABLE
||
2704 rtm
.rtm_type
== RTN_PROHIBIT
|| rtm
.rtm_type
== RTN_FAILED_POLICY
||
2705 rtm
.rtm_type
== RTN_THROW
) {
2706 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
2711 msg
= nlmsg_alloc_simple(cmd
, flags
);
2715 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
2718 nla_put(msg
, RTA_DST
, alen
, &route
->addr
);
2720 if (route
->sourcemask
) {
2721 if (rtm
.rtm_family
== AF_INET
)
2722 nla_put(msg
, RTA_PREFSRC
, alen
, &route
->source
);
2724 nla_put(msg
, RTA_SRC
, alen
, &route
->source
);
2727 if (route
->metric
> 0)
2728 nla_put_u32(msg
, RTA_PRIORITY
, route
->metric
);
2731 nla_put(msg
, RTA_GATEWAY
, alen
, &route
->nexthop
);
2734 nla_put_u32(msg
, RTA_OIF
, dev
->ifindex
);
2737 nla_put_u32(msg
, RTA_TABLE
, table
);
2739 if (route
->flags
& DEVROUTE_MTU
) {
2740 struct nlattr
*metrics
;
2742 if (!(metrics
= nla_nest_start(msg
, RTA_METRICS
)))
2743 goto nla_put_failure
;
2745 nla_put_u32(msg
, RTAX_MTU
, route
->mtu
);
2747 nla_nest_end(msg
, metrics
);
2750 return system_rtnl_call(msg
);
2757 int system_add_route(struct device
*dev
, struct device_route
*route
)
2759 return system_rt(dev
, route
, RTM_NEWROUTE
);
2762 int system_del_route(struct device
*dev
, struct device_route
*route
)
2764 return system_rt(dev
, route
, RTM_DELROUTE
);
2767 int system_flush_routes(void)
2769 const char *names
[] = { "ipv4", "ipv6" };
2772 for (i
= 0; i
< ARRAY_SIZE(names
); i
++) {
2773 snprintf(dev_buf
, sizeof(dev_buf
), "%s/sys/net/%s/route/flush", proc_path
, names
[i
]);
2774 fd
= open(dev_buf
, O_WRONLY
);
2778 if (write(fd
, "-1", 2)) {}
2784 bool system_resolve_rt_type(const char *type
, unsigned int *id
)
2786 return system_rtn_aton(type
, id
);
2789 bool system_resolve_rt_proto(const char *type
, unsigned int *id
)
2793 unsigned int n
, proto
= 256;
2794 n
= strtoul(type
, &e
, 0);
2795 if (!*e
&& e
!= type
)
2797 else if (!strcmp(type
, "unspec"))
2798 proto
= RTPROT_UNSPEC
;
2799 else if (!strcmp(type
, "kernel"))
2800 proto
= RTPROT_KERNEL
;
2801 else if (!strcmp(type
, "boot"))
2802 proto
= RTPROT_BOOT
;
2803 else if (!strcmp(type
, "static"))
2804 proto
= RTPROT_STATIC
;
2805 else if ((f
= fopen("/etc/iproute2/rt_protos", "r")) != NULL
) {
2806 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
) {
2807 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2810 n
= strtoul(e
, NULL
, 10);
2811 e
= strtok(NULL
, " \t\n");
2813 if (e
&& !strcmp(e
, type
)) {
2828 bool system_resolve_rt_table(const char *name
, unsigned int *id
)
2832 unsigned int n
, table
= RT_TABLE_UNSPEC
;
2834 /* first try to parse table as number */
2835 if ((n
= strtoul(name
, &e
, 0)) > 0 && !*e
)
2838 /* handle well known aliases */
2839 else if (!strcmp(name
, "default"))
2840 table
= RT_TABLE_DEFAULT
;
2841 else if (!strcmp(name
, "main"))
2842 table
= RT_TABLE_MAIN
;
2843 else if (!strcmp(name
, "local"))
2844 table
= RT_TABLE_LOCAL
;
2846 /* try to look up name in /etc/iproute2/rt_tables */
2847 else if ((f
= fopen("/etc/iproute2/rt_tables", "r")) != NULL
)
2849 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
)
2851 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2854 n
= strtoul(e
, NULL
, 10);
2855 e
= strtok(NULL
, " \t\n");
2857 if (e
&& !strcmp(e
, name
))
2867 if (table
== RT_TABLE_UNSPEC
)
2874 bool system_is_default_rt_table(unsigned int id
)
2876 return (id
== RT_TABLE_MAIN
);
2879 bool system_resolve_rpfilter(const char *filter
, unsigned int *id
)
2884 if (!strcmp(filter
, "strict"))
2886 else if (!strcmp(filter
, "loose"))
2889 n
= strtoul(filter
, &e
, 0);
2890 if (*e
|| e
== filter
|| n
> 2)
2898 static int system_iprule(struct iprule
*rule
, int cmd
)
2900 int alen
= ((rule
->flags
& IPRULE_FAMILY
) == IPRULE_INET4
) ? 4 : 16;
2903 struct rtmsg rtm
= {
2904 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2905 .rtm_protocol
= RTPROT_STATIC
,
2906 .rtm_scope
= RT_SCOPE_UNIVERSE
,
2907 .rtm_table
= RT_TABLE_UNSPEC
,
2908 .rtm_type
= RTN_UNSPEC
,
2912 if (cmd
== RTM_NEWRULE
)
2913 rtm
.rtm_type
= RTN_UNICAST
;
2916 rtm
.rtm_flags
|= FIB_RULE_INVERT
;
2918 if (rule
->flags
& IPRULE_SRC
)
2919 rtm
.rtm_src_len
= rule
->src_mask
;
2921 if (rule
->flags
& IPRULE_DEST
)
2922 rtm
.rtm_dst_len
= rule
->dest_mask
;
2924 if (rule
->flags
& IPRULE_TOS
)
2925 rtm
.rtm_tos
= rule
->tos
;
2927 if (rule
->flags
& IPRULE_LOOKUP
) {
2928 if (rule
->lookup
< 256)
2929 rtm
.rtm_table
= rule
->lookup
;
2932 if (rule
->flags
& IPRULE_ACTION
)
2933 rtm
.rtm_type
= rule
->action
;
2934 else if (rule
->flags
& IPRULE_GOTO
)
2935 rtm
.rtm_type
= FR_ACT_GOTO
;
2936 else if (!(rule
->flags
& (IPRULE_LOOKUP
| IPRULE_ACTION
| IPRULE_GOTO
)))
2937 rtm
.rtm_type
= FR_ACT_NOP
;
2939 msg
= nlmsg_alloc_simple(cmd
, NLM_F_REQUEST
);
2944 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
2946 if (rule
->flags
& IPRULE_IN
)
2947 nla_put(msg
, FRA_IFNAME
, strlen(rule
->in_dev
) + 1, rule
->in_dev
);
2949 if (rule
->flags
& IPRULE_OUT
)
2950 nla_put(msg
, FRA_OIFNAME
, strlen(rule
->out_dev
) + 1, rule
->out_dev
);
2952 if (rule
->flags
& IPRULE_SRC
)
2953 nla_put(msg
, FRA_SRC
, alen
, &rule
->src_addr
);
2955 if (rule
->flags
& IPRULE_DEST
)
2956 nla_put(msg
, FRA_DST
, alen
, &rule
->dest_addr
);
2958 if (rule
->flags
& IPRULE_PRIORITY
)
2959 nla_put_u32(msg
, FRA_PRIORITY
, rule
->priority
);
2960 else if (cmd
== RTM_NEWRULE
)
2961 nla_put_u32(msg
, FRA_PRIORITY
, rule
->order
);
2963 if (rule
->flags
& IPRULE_FWMARK
)
2964 nla_put_u32(msg
, FRA_FWMARK
, rule
->fwmark
);
2966 if (rule
->flags
& IPRULE_FWMASK
)
2967 nla_put_u32(msg
, FRA_FWMASK
, rule
->fwmask
);
2969 if (rule
->flags
& IPRULE_LOOKUP
) {
2970 if (rule
->lookup
>= 256)
2971 nla_put_u32(msg
, FRA_TABLE
, rule
->lookup
);
2974 if (rule
->flags
& IPRULE_SUP_PREFIXLEN
)
2975 nla_put_u32(msg
, FRA_SUPPRESS_PREFIXLEN
, rule
->sup_prefixlen
);
2977 if (rule
->flags
& IPRULE_UIDRANGE
) {
2978 struct fib_rule_uid_range uidrange
= {
2979 .start
= rule
->uidrange_start
,
2980 .end
= rule
->uidrange_end
2983 nla_put(msg
, FRA_UID_RANGE
, sizeof(uidrange
), &uidrange
);
2986 if (rule
->flags
& IPRULE_GOTO
)
2987 nla_put_u32(msg
, FRA_GOTO
, rule
->gotoid
);
2989 return system_rtnl_call(msg
);
2992 int system_add_iprule(struct iprule
*rule
)
2994 return system_iprule(rule
, RTM_NEWRULE
);
2997 int system_del_iprule(struct iprule
*rule
)
2999 return system_iprule(rule
, RTM_DELRULE
);
3002 int system_flush_iprules(void)
3007 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET
);
3008 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET6
);
3010 memset(&rule
, 0, sizeof(rule
));
3013 rule
.flags
= IPRULE_INET4
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
3016 rule
.lookup
= RT_TABLE_LOCAL
;
3017 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3019 rule
.priority
= 32766;
3020 rule
.lookup
= RT_TABLE_MAIN
;
3021 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3023 rule
.priority
= 32767;
3024 rule
.lookup
= RT_TABLE_DEFAULT
;
3025 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3028 rule
.flags
= IPRULE_INET6
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
3031 rule
.lookup
= RT_TABLE_LOCAL
;
3032 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3034 rule
.priority
= 32766;
3035 rule
.lookup
= RT_TABLE_MAIN
;
3036 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3041 bool system_resolve_iprule_action(const char *action
, unsigned int *id
)
3043 return system_rtn_aton(action
, id
);
3046 time_t system_get_rtime(void)
3051 if (clock_gettime(CLOCK_MONOTONIC
, &ts
) == 0)
3054 if (gettimeofday(&tv
, NULL
) == 0)
3061 #define IP_DF 0x4000
3064 static int tunnel_ioctl(const char *name
, int cmd
, void *p
)
3068 memset(&ifr
, 0, sizeof(ifr
));
3069 strncpy(ifr
.ifr_name
, name
, sizeof(ifr
.ifr_name
) - 1);
3070 ifr
.ifr_ifru
.ifru_data
= p
;
3071 return ioctl(sock_ioctl
, cmd
, &ifr
);
3074 #ifdef IFLA_IPTUN_MAX
3075 static int system_add_ip6_tunnel(const char *name
, const unsigned int link
,
3076 struct blob_attr
**tb
)
3078 struct nl_msg
*nlm
= nlmsg_alloc_simple(RTM_NEWLINK
,
3079 NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3080 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
};
3081 struct blob_attr
*cur
;
3082 int ret
= 0, ttl
= 0;
3087 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3088 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3091 nla_put_u32(nlm
, IFLA_LINK
, link
);
3093 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3099 nla_put_string(nlm
, IFLA_INFO_KIND
, "ip6tnl");
3100 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3107 nla_put_u32(nlm
, IFLA_IPTUN_LINK
, link
);
3109 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3110 ttl
= blobmsg_get_u32(cur
);
3112 nla_put_u8(nlm
, IFLA_IPTUN_PROTO
, IPPROTO_IPIP
);
3113 nla_put_u8(nlm
, IFLA_IPTUN_TTL
, (ttl
) ? ttl
: 64);
3115 struct in6_addr in6buf
;
3116 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3117 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3121 nla_put(nlm
, IFLA_IPTUN_LOCAL
, sizeof(in6buf
), &in6buf
);
3124 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3125 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3129 nla_put(nlm
, IFLA_IPTUN_REMOTE
, sizeof(in6buf
), &in6buf
);
3132 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3133 struct blob_attr
*tb_data
[__IPIP6_DATA_ATTR_MAX
];
3134 uint32_t tun_flags
= IP6_TNL_F_IGN_ENCAP_LIMIT
;
3136 blobmsg_parse(ipip6_data_attr_list
.params
, __IPIP6_DATA_ATTR_MAX
, tb_data
,
3137 blobmsg_data(cur
), blobmsg_len(cur
));
3139 if ((cur
= tb_data
[IPIP6_DATA_ENCAPLIMIT
])) {
3140 char *str
= blobmsg_get_string(cur
);
3142 if (strcmp(str
, "ignore")) {
3144 unsigned encap_limit
= strtoul(str
, &e
, 0);
3146 if (e
== str
|| *e
|| encap_limit
> 255) {
3151 nla_put_u8(nlm
, IFLA_IPTUN_ENCAP_LIMIT
, encap_limit
);
3152 tun_flags
&= ~IP6_TNL_F_IGN_ENCAP_LIMIT
;
3156 #ifdef IFLA_IPTUN_FMR_MAX
3157 if ((cur
= tb_data
[IPIP6_DATA_FMRS
])) {
3158 struct blob_attr
*rcur
;
3159 unsigned rrem
, fmrcnt
= 0;
3160 struct nlattr
*fmrs
= nla_nest_start(nlm
, IFLA_IPTUN_FMRS
);
3167 blobmsg_for_each_attr(rcur
, cur
, rrem
) {
3168 struct blob_attr
*tb_fmr
[__FMR_DATA_ATTR_MAX
], *tb_cur
;
3169 struct in6_addr ip6prefix
;
3170 struct in_addr ip4prefix
;
3171 unsigned ip4len
, ip6len
, ealen
, offset
;
3173 blobmsg_parse(fmr_data_attr_list
.params
, __FMR_DATA_ATTR_MAX
, tb_fmr
,
3174 blobmsg_data(rcur
), blobmsg_len(rcur
));
3176 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX6
]) ||
3177 !parse_ip_and_netmask(AF_INET6
,
3178 blobmsg_data(tb_cur
), &ip6prefix
,
3184 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX4
]) ||
3185 !parse_ip_and_netmask(AF_INET
,
3186 blobmsg_data(tb_cur
), &ip4prefix
,
3192 if (!(tb_cur
= tb_fmr
[FMR_DATA_EALEN
])) {
3196 ealen
= blobmsg_get_u32(tb_cur
);
3198 if (!(tb_cur
= tb_fmr
[FMR_DATA_OFFSET
])) {
3202 offset
= blobmsg_get_u32(tb_cur
);
3204 struct nlattr
*rule
= nla_nest_start(nlm
, ++fmrcnt
);
3210 nla_put(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX
, sizeof(ip6prefix
), &ip6prefix
);
3211 nla_put(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX
, sizeof(ip4prefix
), &ip4prefix
);
3212 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX_LEN
, ip6len
);
3213 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX_LEN
, ip4len
);
3214 nla_put_u8(nlm
, IFLA_IPTUN_FMR_EA_LEN
, ealen
);
3215 nla_put_u8(nlm
, IFLA_IPTUN_FMR_OFFSET
, offset
);
3217 nla_nest_end(nlm
, rule
);
3220 nla_nest_end(nlm
, fmrs
);
3224 nla_put_u32(nlm
, IFLA_IPTUN_FLAGS
, tun_flags
);
3227 nla_nest_end(nlm
, infodata
);
3228 nla_nest_end(nlm
, linkinfo
);
3230 return system_rtnl_call(nlm
);
3238 #ifdef IFLA_IPTUN_MAX
3239 #define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
3240 static int system_add_gre_tunnel(const char *name
, const char *kind
,
3241 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3244 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3245 struct blob_attr
*cur
;
3246 uint32_t ikey
= 0, okey
= 0, flowinfo
= 0, flags6
= IP6_TNL_F_IGN_ENCAP_LIMIT
;
3247 uint16_t iflags
= 0, oflags
= 0;
3249 int ret
= 0, ttl
= 0;
3250 unsigned encap_limit
= 0;
3252 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3256 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3257 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3259 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3265 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
3266 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3273 nla_put_u32(nlm
, IFLA_GRE_LINK
, link
);
3275 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3276 ttl
= blobmsg_get_u32(cur
);
3278 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3279 char *str
= blobmsg_get_string(cur
);
3280 if (strcmp(str
, "inherit")) {
3283 if (!system_tos_aton(str
, &uval
)) {
3289 flowinfo
|= htonl(uval
<< 20) & IP6_FLOWINFO_TCLASS
;
3294 flags6
|= IP6_TNL_F_USE_ORIG_TCLASS
;
3300 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3301 struct blob_attr
*tb_data
[__GRE_DATA_ATTR_MAX
];
3303 blobmsg_parse(gre_data_attr_list
.params
, __GRE_DATA_ATTR_MAX
, tb_data
,
3304 blobmsg_data(cur
), blobmsg_len(cur
));
3306 if ((cur
= tb_data
[GRE_DATA_IKEY
])) {
3307 if ((ikey
= blobmsg_get_u32(cur
)))
3311 if ((cur
= tb_data
[GRE_DATA_OKEY
])) {
3312 if ((okey
= blobmsg_get_u32(cur
)))
3316 if ((cur
= tb_data
[GRE_DATA_ICSUM
])) {
3317 if (blobmsg_get_bool(cur
))
3321 if ((cur
= tb_data
[GRE_DATA_OCSUM
])) {
3322 if (blobmsg_get_bool(cur
))
3326 if ((cur
= tb_data
[GRE_DATA_ISEQNO
])) {
3327 if (blobmsg_get_bool(cur
))
3331 if ((cur
= tb_data
[GRE_DATA_OSEQNO
])) {
3332 if (blobmsg_get_bool(cur
))
3336 if ((cur
= tb_data
[GRE_DATA_ENCAPLIMIT
])) {
3337 char *str
= blobmsg_get_string(cur
);
3339 if (strcmp(str
, "ignore")) {
3342 encap_limit
= strtoul(str
, &e
, 0);
3344 if (e
== str
|| *e
|| encap_limit
> 255) {
3349 flags6
&= ~IP6_TNL_F_IGN_ENCAP_LIMIT
;
3355 struct in6_addr in6buf
;
3356 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3357 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3361 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(in6buf
), &in6buf
);
3364 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3365 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3369 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(in6buf
), &in6buf
);
3372 if (!(flags6
& IP6_TNL_F_IGN_ENCAP_LIMIT
))
3373 nla_put_u8(nlm
, IFLA_GRE_ENCAP_LIMIT
, encap_limit
);
3376 nla_put_u32(nlm
, IFLA_GRE_FLOWINFO
, flowinfo
);
3379 nla_put_u32(nlm
, IFLA_GRE_FLAGS
, flags6
);
3384 struct in_addr inbuf
;
3387 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3388 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3392 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(inbuf
), &inbuf
);
3395 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3396 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3400 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(inbuf
), &inbuf
);
3402 if (IN_MULTICAST(ntohl(inbuf
.s_addr
))) {
3404 okey
= inbuf
.s_addr
;
3409 ikey
= inbuf
.s_addr
;
3415 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
3416 set_df
= blobmsg_get_bool(cur
);
3419 /* ttl != 0 and nopmtudisc are incompatible */
3427 nla_put_u8(nlm
, IFLA_GRE_PMTUDISC
, set_df
? 1 : 0);
3429 nla_put_u8(nlm
, IFLA_GRE_TOS
, tos
);
3433 nla_put_u8(nlm
, IFLA_GRE_TTL
, ttl
);
3436 nla_put_u16(nlm
, IFLA_GRE_OFLAGS
, oflags
);
3439 nla_put_u16(nlm
, IFLA_GRE_IFLAGS
, iflags
);
3442 nla_put_u32(nlm
, IFLA_GRE_OKEY
, htonl(okey
));
3445 nla_put_u32(nlm
, IFLA_GRE_IKEY
, htonl(ikey
));
3447 nla_nest_end(nlm
, infodata
);
3448 nla_nest_end(nlm
, linkinfo
);
3450 return system_rtnl_call(nlm
);
3459 static int system_add_vti_tunnel(const char *name
, const char *kind
,
3460 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3463 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3464 struct blob_attr
*cur
;
3467 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3471 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3472 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3474 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3480 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
3481 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3488 nla_put_u32(nlm
, IFLA_VTI_LINK
, link
);
3491 struct in6_addr in6buf
;
3492 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3493 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3497 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(in6buf
), &in6buf
);
3500 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3501 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3505 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(in6buf
), &in6buf
);
3509 struct in_addr inbuf
;
3511 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3512 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3516 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(inbuf
), &inbuf
);
3519 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3520 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3524 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(inbuf
), &inbuf
);
3529 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3530 struct blob_attr
*tb_data
[__VTI_DATA_ATTR_MAX
];
3531 uint32_t ikey
= 0, okey
= 0;
3533 blobmsg_parse(vti_data_attr_list
.params
, __VTI_DATA_ATTR_MAX
, tb_data
,
3534 blobmsg_data(cur
), blobmsg_len(cur
));
3536 if ((cur
= tb_data
[VTI_DATA_IKEY
])) {
3537 if ((ikey
= blobmsg_get_u32(cur
)))
3538 nla_put_u32(nlm
, IFLA_VTI_IKEY
, htonl(ikey
));
3541 if ((cur
= tb_data
[VTI_DATA_OKEY
])) {
3542 if ((okey
= blobmsg_get_u32(cur
)))
3543 nla_put_u32(nlm
, IFLA_VTI_OKEY
, htonl(okey
));
3547 nla_nest_end(nlm
, infodata
);
3548 nla_nest_end(nlm
, linkinfo
);
3550 return system_rtnl_call(nlm
);
3558 #ifdef IFLA_XFRM_MAX
3559 static int system_add_xfrm_tunnel(const char *name
, const char *kind
,
3560 const unsigned int link
, struct blob_attr
**tb
)
3563 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3564 struct blob_attr
*cur
;
3567 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3571 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3572 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3574 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3580 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
3581 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3588 nla_put_u32(nlm
, IFLA_XFRM_LINK
, link
);
3590 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3591 struct blob_attr
*tb_data
[__XFRM_DATA_ATTR_MAX
];
3594 blobmsg_parse(xfrm_data_attr_list
.params
, __XFRM_DATA_ATTR_MAX
, tb_data
,
3595 blobmsg_data(cur
), blobmsg_len(cur
));
3597 if ((cur
= tb_data
[XFRM_DATA_IF_ID
])) {
3598 if ((if_id
= blobmsg_get_u32(cur
)))
3599 nla_put_u32(nlm
, IFLA_XFRM_IF_ID
, if_id
);
3604 nla_nest_end(nlm
, infodata
);
3605 nla_nest_end(nlm
, linkinfo
);
3607 return system_rtnl_call(nlm
);
3615 #ifdef IFLA_VXLAN_MAX
3616 static void system_vxlan_map_bool_attr(struct nl_msg
*msg
, struct blob_attr
**tb_data
, int attrtype
, int vxlandatatype
, bool invert
) {
3617 struct blob_attr
*cur
;
3618 if ((cur
= tb_data
[vxlandatatype
])) {
3619 bool val
= blobmsg_get_bool(cur
);
3623 if ((attrtype
== IFLA_VXLAN_GBP
) && val
)
3624 nla_put_flag(msg
, attrtype
);
3626 nla_put_u8(msg
, attrtype
, val
);
3631 static int system_add_vxlan(const char *name
, const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3633 struct blob_attr
*tb_data
[__VXLAN_DATA_ATTR_MAX
];
3635 struct nlattr
*linkinfo
, *data
;
3636 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
3637 struct blob_attr
*cur
;
3640 if ((cur
= tb
[TUNNEL_ATTR_DATA
]))
3641 blobmsg_parse(vxlan_data_attr_list
.params
, __VXLAN_DATA_ATTR_MAX
, tb_data
,
3642 blobmsg_data(cur
), blobmsg_len(cur
));
3646 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
3651 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
3653 nla_put_string(msg
, IFLA_IFNAME
, name
);
3655 if ((cur
= tb_data
[VXLAN_DATA_ATTR_MACADDR
])) {
3656 struct ether_addr
*ea
= ether_aton(blobmsg_get_string(cur
));
3662 nla_put(msg
, IFLA_ADDRESS
, ETH_ALEN
, ea
);
3665 if ((cur
= tb
[TUNNEL_ATTR_MTU
])) {
3666 uint32_t mtu
= blobmsg_get_u32(cur
);
3667 nla_put_u32(msg
, IFLA_MTU
, mtu
);
3670 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
))) {
3675 nla_put_string(msg
, IFLA_INFO_KIND
, "vxlan");
3677 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
))) {
3683 nla_put_u32(msg
, IFLA_VXLAN_LINK
, link
);
3685 if ((cur
= tb_data
[VXLAN_DATA_ATTR_ID
])) {
3686 uint32_t id
= blobmsg_get_u32(cur
);
3687 if (id
>= (1u << 24) - 1) {
3692 nla_put_u32(msg
, IFLA_VXLAN_ID
, id
);
3696 struct in6_addr in6buf
;
3697 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3698 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3702 nla_put(msg
, IFLA_VXLAN_LOCAL6
, sizeof(in6buf
), &in6buf
);
3705 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3706 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3710 nla_put(msg
, IFLA_VXLAN_GROUP6
, sizeof(in6buf
), &in6buf
);
3713 struct in_addr inbuf
;
3715 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3716 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3720 nla_put(msg
, IFLA_VXLAN_LOCAL
, sizeof(inbuf
), &inbuf
);
3723 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3724 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3728 nla_put(msg
, IFLA_VXLAN_GROUP
, sizeof(inbuf
), &inbuf
);
3732 uint32_t port
= 4789;
3733 if ((cur
= tb_data
[VXLAN_DATA_ATTR_PORT
])) {
3734 port
= blobmsg_get_u32(cur
);
3735 if (port
< 1 || port
> 65535) {
3740 nla_put_u16(msg
, IFLA_VXLAN_PORT
, htons(port
));
3742 if ((cur
= tb_data
[VXLAN_DATA_ATTR_SRCPORTMIN
])) {
3743 struct ifla_vxlan_port_range srcports
= {0,0};
3745 uint32_t low
= blobmsg_get_u32(cur
);
3746 if (low
< 1 || low
> 65535 - 1) {
3751 srcports
.low
= htons((uint16_t) low
);
3752 srcports
.high
= htons((uint16_t) (low
+1));
3754 if ((cur
= tb_data
[VXLAN_DATA_ATTR_SRCPORTMAX
])) {
3755 uint32_t high
= blobmsg_get_u32(cur
);
3756 if (high
< 1 || high
> 65535) {
3762 srcports
.high
= htons((uint16_t) high
);
3765 nla_put(msg
, IFLA_VXLAN_PORT_RANGE
, sizeof(srcports
), &srcports
);
3768 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_CSUM
, VXLAN_DATA_ATTR_TXCSUM
, false);
3769 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_ZERO_CSUM6_RX
, VXLAN_DATA_ATTR_RXCSUM
, true);
3770 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_ZERO_CSUM6_TX
, VXLAN_DATA_ATTR_TXCSUM
, true);
3771 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_LEARNING
, VXLAN_DATA_ATTR_LEARNING
, false);
3772 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_RSC
, VXLAN_DATA_ATTR_RSC
, false);
3773 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_PROXY
, VXLAN_DATA_ATTR_PROXY
, false);
3774 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_L2MISS
, VXLAN_DATA_ATTR_L2MISS
, false);
3775 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_L3MISS
, VXLAN_DATA_ATTR_L3MISS
, false);
3776 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_GBP
, VXLAN_DATA_ATTR_GBP
, false);
3778 if ((cur
= tb_data
[VXLAN_DATA_ATTR_AGEING
])) {
3779 uint32_t ageing
= blobmsg_get_u32(cur
);
3780 nla_put_u32(msg
, IFLA_VXLAN_AGEING
, ageing
);
3783 if ((cur
= tb_data
[VXLAN_DATA_ATTR_LIMIT
])) {
3784 uint32_t maxaddress
= blobmsg_get_u32(cur
);
3785 nla_put_u32(msg
, IFLA_VXLAN_LIMIT
, maxaddress
);
3788 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3789 char *str
= blobmsg_get_string(cur
);
3792 if (strcmp(str
, "inherit")) {
3793 if (!system_tos_aton(str
, &tos
)) {
3799 nla_put_u8(msg
, IFLA_VXLAN_TOS
, tos
);
3802 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
3803 uint32_t ttl
= blobmsg_get_u32(cur
);
3804 if (ttl
< 1 || ttl
> 255) {
3809 nla_put_u8(msg
, IFLA_VXLAN_TTL
, ttl
);
3812 nla_nest_end(msg
, data
);
3813 nla_nest_end(msg
, linkinfo
);
3815 ret
= system_rtnl_call(msg
);
3817 D(SYSTEM
, "Error adding vxlan '%s': %d\n", name
, ret
);
3827 static int system_add_sit_tunnel(const char *name
, const unsigned int link
, struct blob_attr
**tb
)
3829 struct blob_attr
*cur
;
3832 if (system_add_proto_tunnel(name
, IPPROTO_IPV6
, link
, tb
) < 0)
3836 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3837 struct blob_attr
*tb_data
[__SIXRD_DATA_ATTR_MAX
];
3839 struct ip_tunnel_6rd p6
;
3841 blobmsg_parse(sixrd_data_attr_list
.params
, __SIXRD_DATA_ATTR_MAX
, tb_data
,
3842 blobmsg_data(cur
), blobmsg_len(cur
));
3844 memset(&p6
, 0, sizeof(p6
));
3846 if ((cur
= tb_data
[SIXRD_DATA_PREFIX
])) {
3847 if (!parse_ip_and_netmask(AF_INET6
, blobmsg_data(cur
),
3848 &p6
.prefix
, &mask
) || mask
> 128) {
3853 p6
.prefixlen
= mask
;
3856 if ((cur
= tb_data
[SIXRD_DATA_RELAY_PREFIX
])) {
3857 if (!parse_ip_and_netmask(AF_INET
, blobmsg_data(cur
),
3858 &p6
.relay_prefix
, &mask
) || mask
> 32) {
3863 p6
.relay_prefixlen
= mask
;
3866 if (tunnel_ioctl(name
, SIOCADD6RD
, &p6
) < 0) {
3876 system_link_del(name
);
3880 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
, const unsigned int link
, struct blob_attr
**tb
)
3882 struct blob_attr
*cur
;
3884 struct ip_tunnel_parm p
= {
3893 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
]) &&
3894 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.saddr
) < 1)
3897 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
]) &&
3898 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.daddr
) < 1)
3901 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
3902 set_df
= blobmsg_get_bool(cur
);
3904 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3905 p
.iph
.ttl
= blobmsg_get_u32(cur
);
3907 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3908 char *str
= blobmsg_get_string(cur
);
3909 if (strcmp(str
, "inherit")) {
3912 if (!system_tos_aton(str
, &uval
))
3920 p
.iph
.frag_off
= set_df
? htons(IP_DF
) : 0;
3921 /* ttl !=0 and nopmtudisc are incompatible */
3922 if (p
.iph
.ttl
&& p
.iph
.frag_off
== 0)
3925 strncpy(p
.name
, name
, sizeof(p
.name
) - 1);
3927 switch (p
.iph
.protocol
) {
3929 return tunnel_ioctl("tunl0", SIOCADDTUNNEL
, &p
);
3931 return tunnel_ioctl("sit0", SIOCADDTUNNEL
, &p
);
3938 int system_del_ip_tunnel(const struct device
*dev
)
3940 return system_link_del(dev
->ifname
);
3943 int system_update_ipv6_mtu(struct device
*dev
, int mtu
)
3949 fd
= open(dev_sysctl_path("ipv6/conf", dev
->ifname
, "mtu"), O_RDWR
);
3954 ssize_t len
= read(fd
, buf
, sizeof(buf
) - 1);
3961 if (write(fd
, buf
, snprintf(buf
, sizeof(buf
), "%i", mtu
)) > 0)
3970 int system_add_ip_tunnel(const struct device
*dev
, struct blob_attr
*attr
)
3972 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
3973 struct blob_attr
*cur
;
3976 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
3977 blob_data(attr
), blob_len(attr
));
3979 system_link_del(dev
->ifname
);
3981 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
3983 str
= blobmsg_data(cur
);
3985 unsigned int ttl
= 0;
3986 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
3987 ttl
= blobmsg_get_u32(cur
);
3992 unsigned int link
= 0;
3993 if ((cur
= tb
[TUNNEL_ATTR_LINK
])) {
3994 struct interface
*iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
3998 if (iface
->l3_dev
.dev
)
3999 link
= iface
->l3_dev
.dev
->ifindex
;
4002 if (!strcmp(str
, "sit"))
4003 return system_add_sit_tunnel(dev
->ifname
, link
, tb
);
4004 #ifdef IFLA_IPTUN_MAX
4005 else if (!strcmp(str
, "ipip6")) {
4006 return system_add_ip6_tunnel(dev
->ifname
, link
, tb
);
4007 } else if (!strcmp(str
, "greip")) {
4008 return system_add_gre_tunnel(dev
->ifname
, "gre", link
, tb
, false);
4009 } else if (!strcmp(str
, "gretapip")) {
4010 return system_add_gre_tunnel(dev
->ifname
, "gretap", link
, tb
, false);
4011 } else if (!strcmp(str
, "greip6")) {
4012 return system_add_gre_tunnel(dev
->ifname
, "ip6gre", link
, tb
, true);
4013 } else if (!strcmp(str
, "gretapip6")) {
4014 return system_add_gre_tunnel(dev
->ifname
, "ip6gretap", link
, tb
, true);
4016 } else if (!strcmp(str
, "vtiip")) {
4017 return system_add_vti_tunnel(dev
->ifname
, "vti", link
, tb
, false);
4018 } else if (!strcmp(str
, "vtiip6")) {
4019 return system_add_vti_tunnel(dev
->ifname
, "vti6", link
, tb
, true);
4021 #ifdef IFLA_XFRM_MAX
4022 } else if (!strcmp(str
, "xfrm")) {
4023 return system_add_xfrm_tunnel(dev
->ifname
, "xfrm", link
, tb
);
4025 #ifdef IFLA_VXLAN_MAX
4026 } else if(!strcmp(str
, "vxlan")) {
4027 return system_add_vxlan(dev
->ifname
, link
, tb
, false);
4028 } else if(!strcmp(str
, "vxlan6")) {
4029 return system_add_vxlan(dev
->ifname
, link
, tb
, true);
4032 } else if (!strcmp(str
, "ipip")) {
4033 return system_add_proto_tunnel(dev
->ifname
, IPPROTO_IPIP
, link
, tb
);