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
, bool bridge
)
495 system_set_dev_sysfs(bridge
? "bridge/multicast_router" :
496 "brport/multicast_router",
500 static void system_bridge_set_robustness(struct device
*dev
, const char *val
)
502 system_set_dev_sysfs("bridge/multicast_startup_query_count",
504 system_set_dev_sysfs("bridge/multicast_last_member_count",
508 static void system_bridge_set_query_interval(struct device
*dev
, const char *val
)
510 system_set_dev_sysfs("bridge/multicast_query_interval",
514 static void system_bridge_set_query_response_interval(struct device
*dev
, const char *val
)
516 system_set_dev_sysfs("bridge/multicast_query_response_interval",
520 static void system_bridge_set_last_member_interval(struct device
*dev
, const char *val
)
522 system_set_dev_sysfs("bridge/multicast_last_member_interval",
526 static void system_bridge_set_membership_interval(struct device
*dev
, const char *val
)
528 system_set_dev_sysfs("bridge/multicast_membership_interval",
532 static void system_bridge_set_other_querier_timeout(struct device
*dev
, const char *val
)
534 system_set_dev_sysfs("bridge/multicast_querier_interval",
538 static void system_bridge_set_startup_query_interval(struct device
*dev
, const char *val
)
540 system_set_dev_sysfs("bridge/multicast_startup_query_interval",
544 void system_bridge_set_stp_state(struct device
*dev
, bool val
)
546 const char *valstr
= val
? "1" : "0";
548 system_set_dev_sysfs("bridge/stp_state", dev
->ifname
, valstr
);
551 static void system_bridge_set_forward_delay(struct device
*dev
, const char *val
)
553 system_set_dev_sysfs("bridge/forward_delay", dev
->ifname
, val
);
556 static void system_bridge_set_priority(struct device
*dev
, const char *val
)
558 system_set_dev_sysfs("bridge/priority", dev
->ifname
, val
);
561 static void system_bridge_set_ageing_time(struct device
*dev
, const char *val
)
563 system_set_dev_sysfs("bridge/ageing_time", dev
->ifname
, val
);
566 static void system_bridge_set_hello_time(struct device
*dev
, const char *val
)
568 system_set_dev_sysfs("bridge/hello_time", dev
->ifname
, val
);
571 static void system_bridge_set_max_age(struct device
*dev
, const char *val
)
573 system_set_dev_sysfs("bridge/max_age", dev
->ifname
, val
);
576 static void system_bridge_set_learning(struct device
*dev
, const char *val
)
578 system_set_dev_sysfs("brport/learning", dev
->ifname
, val
);
581 static void system_bridge_set_unicast_flood(struct device
*dev
, const char *val
)
583 system_set_dev_sysfs("brport/unicast_flood", dev
->ifname
, val
);
586 static void system_bridge_set_vlan_filtering(struct device
*dev
, const char *val
)
588 system_set_dev_sysfs("bridge/vlan_filtering", dev
->ifname
, val
);
591 static int system_get_disable_ipv6(struct device
*dev
, char *buf
, const size_t buf_sz
)
593 return system_get_dev_sysctl("ipv6/conf", "disable_ipv6",
594 dev
->ifname
, buf
, buf_sz
);
597 static int system_get_ip6segmentrouting(struct device
*dev
, char *buf
, const size_t buf_sz
)
599 return system_get_dev_sysctl("ipv6/conf", "seg6_enabled",
600 dev
->ifname
, buf
, buf_sz
);
603 static int system_get_rpfilter(struct device
*dev
, char *buf
, const size_t buf_sz
)
605 return system_get_dev_sysctl("ipv4/conf", "rp_filter",
606 dev
->ifname
, buf
, buf_sz
);
609 static int system_get_acceptlocal(struct device
*dev
, char *buf
, const size_t buf_sz
)
611 return system_get_dev_sysctl("ipv4/conf", "accept_local",
612 dev
->ifname
, buf
, buf_sz
);
615 static int system_get_igmpversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
617 return system_get_dev_sysctl("ipv4/conf", "force_igmp_version",
618 dev
->ifname
, buf
, buf_sz
);
621 static int system_get_mldversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
623 return system_get_dev_sysctl("ipv6/conf", "force_mld_version",
624 dev
->ifname
, buf
, buf_sz
);
627 static int system_get_neigh4reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
629 return system_get_dev_sysctl("ipv4/neigh", "base_reachable_time_ms",
630 dev
->ifname
, buf
, buf_sz
);
633 static int system_get_neigh6reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
635 return system_get_dev_sysctl("ipv6/neigh", "base_reachable_time_ms",
636 dev
->ifname
, buf
, buf_sz
);
639 static int system_get_neigh4gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
641 return system_get_dev_sysctl("ipv4/neigh", "gc_stale_time",
642 dev
->ifname
, buf
, buf_sz
);
645 static int system_get_neigh6gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
647 return system_get_dev_sysctl("ipv6/neigh", "gc_stale_time",
648 dev
->ifname
, buf
, buf_sz
);
651 static int system_get_neigh4locktime(struct device
*dev
, char *buf
, const size_t buf_sz
)
653 return system_get_dev_sysctl("ipv4/neigh", "locktime",
654 dev
->ifname
, buf
, buf_sz
);
657 static int system_get_dadtransmits(struct device
*dev
, char *buf
, const size_t buf_sz
)
659 return system_get_dev_sysctl("ipv6/conf", "dad_transmits",
660 dev
->ifname
, buf
, buf_sz
);
663 static int system_get_sendredirects(struct device
*dev
, char *buf
, const size_t buf_sz
)
665 return system_get_dev_sysctl("ipv4/conf", "send_redirects",
666 dev
->ifname
, buf
, buf_sz
);
670 static int system_get_drop_v4_unicast_in_l2_multicast(struct device
*dev
, char *buf
, const size_t buf_sz
)
672 return system_get_dev_sysctl("ipv4/conf", "drop_unicast_in_l2_multicast",
673 dev
->ifname
, buf
, buf_sz
);
676 static int system_get_drop_v6_unicast_in_l2_multicast(struct device
*dev
, char *buf
, const size_t buf_sz
)
678 return system_get_dev_sysctl("ipv6/conf", "drop_unicast_in_l2_multicast",
679 dev
->ifname
, buf
, buf_sz
);
682 static int system_get_drop_gratuitous_arp(struct device
*dev
, char *buf
, const size_t buf_sz
)
684 return system_get_dev_sysctl("ipv4/conf", "drop_gratuitous_arp",
685 dev
->ifname
, buf
, buf_sz
);
688 static int system_get_drop_unsolicited_na(struct device
*dev
, char *buf
, const size_t buf_sz
)
690 return system_get_dev_sysctl("ipv6/conf", "drop_unsolicited_na",
691 dev
->ifname
, buf
, buf_sz
);
694 static int system_get_arp_accept(struct device
*dev
, char *buf
, const size_t buf_sz
)
696 return system_get_dev_sysctl("ipv4/conf", "arp_accept",
697 dev
->ifname
, buf
, buf_sz
);
700 /* Evaluate netlink messages */
701 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
)
703 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
704 struct nlattr
*nla
[__IFLA_MAX
];
708 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
711 nlmsg_parse(nh
, sizeof(struct ifinfomsg
), nla
, __IFLA_MAX
- 1, NULL
);
712 if (!nla
[IFLA_IFNAME
])
715 struct device
*dev
= device_find(nla_data(nla
[IFLA_IFNAME
]));
719 if (!system_get_dev_sysfs("carrier", dev
->ifname
, buf
, sizeof(buf
)))
720 link_state
= strtoul(buf
, NULL
, 0);
722 if (dev
->type
== &simple_device_type
)
723 device_set_present(dev
, true);
725 device_set_link(dev
, link_state
? true : false);
732 handle_hotplug_msg(char *data
, int size
)
734 const char *subsystem
= NULL
, *interface
= NULL
, *interface_old
= NULL
;
735 char *cur
, *end
, *sep
;
739 if (!strncmp(data
, "add@", 4) || !strncmp(data
, "move@", 5))
741 else if (!strncmp(data
, "remove@", 7))
746 skip
= strlen(data
) + 1;
749 for (cur
= data
+ skip
; cur
< end
; cur
+= skip
) {
750 skip
= strlen(cur
) + 1;
752 sep
= strchr(cur
, '=');
757 if (!strcmp(cur
, "INTERFACE"))
759 else if (!strcmp(cur
, "SUBSYSTEM")) {
761 if (strcmp(subsystem
, "net") != 0)
763 } else if (!strcmp(cur
, "DEVPATH_OLD")) {
764 interface_old
= strrchr(sep
+ 1, '/');
770 if (!subsystem
|| !interface
)
774 device_hotplug_event(interface_old
, false);
776 device_hotplug_event(interface
, add
);
780 handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
)
782 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
783 struct sockaddr_nl nla
;
784 unsigned char *buf
= NULL
;
787 socklen_t errlen
= sizeof(err
);
790 while ((size
= nl_recv(ev
->sock
, &nla
, &buf
, NULL
)) > 0) {
792 handle_hotplug_msg((char *) buf
, size
);
799 if (getsockopt(u
->fd
, SOL_SOCKET
, SO_ERROR
, (void *)&err
, &errlen
))
804 /* Increase rx buffer size on netlink socket */
806 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
817 uloop_fd_delete(&ev
->uloop
);
821 static int system_rtnl_call(struct nl_msg
*msg
)
825 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
831 return nl_wait_for_ack(sock_rtnl
);
834 int system_bridge_delbr(struct device
*bridge
)
836 return ioctl(sock_ioctl
, SIOCBRDELBR
, bridge
->ifname
);
839 static int system_bridge_if(const char *bridge
, struct device
*dev
, int cmd
, void *data
)
843 memset(&ifr
, 0, sizeof(ifr
));
845 ifr
.ifr_ifindex
= dev
->ifindex
;
848 strncpy(ifr
.ifr_name
, bridge
, sizeof(ifr
.ifr_name
) - 1);
849 return ioctl(sock_ioctl
, cmd
, &ifr
);
852 static bool system_is_bridge(const char *name
)
856 return stat(dev_sysfs_path(name
, "bridge"), &st
) >= 0;
859 static char *system_get_bridge(const char *name
, char *buf
, int buflen
)
865 snprintf(buf
, buflen
, "%s/devices/virtual/net/*/brif/%s/bridge", sysfs_path
, name
);
866 if (glob(buf
, GLOB_NOSORT
, NULL
, &gl
) < 0)
870 len
= readlink(gl
.gl_pathv
[0], buf
, buflen
);
878 path
= strrchr(buf
, '/');
886 system_bridge_set_wireless(struct device
*bridge
, struct device
*dev
)
888 bool mcast_to_ucast
= dev
->wireless_ap
;
891 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
&&
892 !bridge
->settings
.multicast_to_unicast
)
893 mcast_to_ucast
= false;
895 hairpin
= mcast_to_ucast
|| dev
->wireless_proxyarp
;
896 if (dev
->wireless_isolate
)
899 system_bridge_set_multicast_to_unicast(dev
, mcast_to_ucast
? "1" : "0");
900 system_bridge_set_hairpin_mode(dev
, hairpin
? "1" : "0");
901 system_bridge_set_proxyarp_wifi(dev
, dev
->wireless_proxyarp
? "1" : "0");
904 int system_bridge_addif(struct device
*bridge
, struct device
*dev
)
913 oldbr
= system_get_bridge(dev
->ifname
, dev_buf
, sizeof(dev_buf
));
914 if (!oldbr
|| strcmp(oldbr
, bridge
->ifname
) != 0) {
915 ret
= system_bridge_if(bridge
->ifname
, dev
, SIOCBRADDIF
, NULL
);
917 D(SYSTEM
, "Failed to add device '%s' to bridge '%s' (tries=%d): %s\n",
918 dev
->ifname
, bridge
->ifname
, tries
, strerror(errno
));
924 system_bridge_set_wireless(bridge
, dev
);
926 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
927 snprintf(buf
, sizeof(buf
), "%u", dev
->settings
.multicast_router
);
928 system_bridge_set_multicast_router(dev
, buf
, false);
931 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
&&
932 dev
->settings
.multicast_fast_leave
)
933 system_bridge_set_multicast_fast_leave(dev
, "1");
935 if (dev
->settings
.flags
& DEV_OPT_LEARNING
&&
936 !dev
->settings
.learning
)
937 system_bridge_set_learning(dev
, "0");
939 if (dev
->settings
.flags
& DEV_OPT_UNICAST_FLOOD
&&
940 !dev
->settings
.unicast_flood
)
941 system_bridge_set_unicast_flood(dev
, "0");
943 if (dev
->settings
.flags
& DEV_OPT_ISOLATE
&&
944 dev
->settings
.isolate
)
945 system_bridge_set_isolated(dev
, "1");
947 if (dev
->bpdu_filter
)
948 system_bridge_set_bpdu_filter(dev
, dev
->bpdu_filter
? "1" : "0");
953 int system_bridge_delif(struct device
*bridge
, struct device
*dev
)
955 return system_bridge_if(bridge
->ifname
, dev
, SIOCBRDELIF
, NULL
);
958 int system_bridge_vlan(const char *iface
, uint16_t vid
, bool add
, unsigned int vflags
)
960 struct ifinfomsg ifi
= { .ifi_family
= PF_BRIDGE
, };
961 struct bridge_vlan_info vinfo
= { .vid
= vid
, };
962 unsigned short flags
= 0;
963 struct nlattr
*afspec
;
967 ifi
.ifi_index
= if_nametoindex(iface
);
971 nlm
= nlmsg_alloc_simple(add
? RTM_SETLINK
: RTM_DELLINK
, NLM_F_REQUEST
);
975 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
977 if (vflags
& BRVLAN_F_SELF
)
978 flags
|= BRIDGE_FLAGS_SELF
;
980 if (vflags
& BRVLAN_F_PVID
)
981 vinfo
.flags
|= BRIDGE_VLAN_INFO_PVID
;
983 if (vflags
& BRVLAN_F_UNTAGGED
)
984 vinfo
.flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
986 afspec
= nla_nest_start(nlm
, IFLA_AF_SPEC
);
993 nla_put_u16(nlm
, IFLA_BRIDGE_FLAGS
, flags
);
995 nla_put(nlm
, IFLA_BRIDGE_VLAN_INFO
, sizeof(vinfo
), &vinfo
);
996 nla_nest_end(nlm
, afspec
);
998 return system_rtnl_call(nlm
);
1005 int system_bonding_set_device(struct device
*dev
, struct bonding_config
*cfg
)
1007 const char *ifname
= dev
->ifname
;
1008 struct blob_attr
*cur
;
1009 char op
= cfg
? '+' : '-';
1013 snprintf(dev_buf
, sizeof(dev_buf
), "%s/class/net/bonding_masters", sysfs_path
);
1014 snprintf(buf
, sizeof(buf
), "%c%s", op
, ifname
);
1015 write_file(dev_buf
, buf
);
1020 system_set_dev_sysfs("bonding/mode", ifname
, bonding_policy_str
[cfg
->policy
]);
1022 system_set_dev_sysfs_int("bonding/all_ports_active", ifname
, cfg
->all_ports_active
);
1024 if (cfg
->policy
== BONDING_MODE_BALANCE_XOR
||
1025 cfg
->policy
== BONDING_MODE_BALANCE_TLB
||
1026 cfg
->policy
== BONDING_MODE_8023AD
)
1027 system_set_dev_sysfs("bonding/xmit_hash_policy", ifname
, cfg
->xmit_hash_policy
);
1029 if (cfg
->policy
== BONDING_MODE_8023AD
) {
1030 system_set_dev_sysfs("bonding/ad_actor_system", ifname
, cfg
->ad_actor_system
);
1031 system_set_dev_sysfs_int("bonding/ad_actor_sys_prio", ifname
, cfg
->ad_actor_sys_prio
);
1032 system_set_dev_sysfs("bonding/ad_select", ifname
, cfg
->ad_select
);
1033 system_set_dev_sysfs("bonding/lacp_rate", ifname
, cfg
->lacp_rate
);
1034 system_set_dev_sysfs_int("bonding/min_links", ifname
, cfg
->min_links
);
1037 if (cfg
->policy
== BONDING_MODE_BALANCE_RR
)
1038 system_set_dev_sysfs_int("bonding/packets_per_slave", ifname
, cfg
->packets_per_port
);
1040 if (cfg
->policy
== BONDING_MODE_BALANCE_TLB
||
1041 cfg
->policy
== BONDING_MODE_BALANCE_ALB
)
1042 system_set_dev_sysfs_int("bonding/lp_interval", ifname
, cfg
->lp_interval
);
1044 if (cfg
->policy
== BONDING_MODE_BALANCE_TLB
)
1045 system_set_dev_sysfs_int("bonding/tlb_dynamic_lb", ifname
, cfg
->dynamic_lb
);
1046 system_set_dev_sysfs_int("bonding/resend_igmp", ifname
, cfg
->resend_igmp
);
1047 system_set_dev_sysfs_int("bonding/num_grat_arp", ifname
, cfg
->num_peer_notif
);
1048 system_set_dev_sysfs("bonding/primary_reselect", ifname
, cfg
->primary_reselect
);
1049 system_set_dev_sysfs("bonding/fail_over_mac", ifname
, cfg
->failover_mac
);
1051 system_set_dev_sysfs_int((cfg
->monitor_arp
?
1052 "bonding/arp_interval" :
1053 "bonding/miimon"), ifname
, cfg
->monitor_interval
);
1055 blobmsg_for_each_attr(cur
, cfg
->arp_target
, rem
) {
1056 snprintf(buf
, sizeof(buf
), "+%s", blobmsg_get_string(cur
));
1057 system_set_dev_sysfs("bonding/arp_ip_target", ifname
, buf
);
1060 system_set_dev_sysfs_int("bonding/arp_all_targets", ifname
, cfg
->arp_all_targets
);
1061 if (cfg
->policy
< BONDING_MODE_8023AD
)
1062 system_set_dev_sysfs("bonding/arp_validate", ifname
, cfg
->arp_validate
);
1063 system_set_dev_sysfs_int("bonding/use_carrier", ifname
, cfg
->use_carrier
);
1064 if (!cfg
->monitor_arp
&& cfg
->monitor_interval
) {
1065 system_set_dev_sysfs_int("bonding/updelay", ifname
, cfg
->updelay
);
1066 system_set_dev_sysfs_int("bonding/downdelay", ifname
, cfg
->downdelay
);
1072 int system_bonding_set_port(struct device
*dev
, struct device
*port
, bool add
, bool primary
)
1074 const char *port_name
= port
->ifname
;
1075 const char op_ch
= add
? '+' : '-';
1076 char buf
[IFNAMSIZ
+ 2];
1078 snprintf(buf
, sizeof(buf
), "%c%s", op_ch
, port_name
);
1079 system_if_down(port
);
1080 system_set_dev_sysfs("bonding/slaves", dev
->ifname
, buf
);
1084 system_set_dev_sysfs("bonding/primary", dev
->ifname
,
1085 add
? port_name
: "");
1090 int system_if_resolve(struct device
*dev
)
1094 memset(&ifr
, 0, sizeof(ifr
));
1095 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1096 if (!ioctl(sock_ioctl
, SIOCGIFINDEX
, &ifr
))
1097 return ifr
.ifr_ifindex
;
1102 static int system_if_flags(const char *ifname
, unsigned add
, unsigned rem
)
1106 memset(&ifr
, 0, sizeof(ifr
));
1107 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
1108 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) < 0)
1111 ifr
.ifr_flags
|= add
;
1112 ifr
.ifr_flags
&= ~rem
;
1113 return ioctl(sock_ioctl
, SIOCSIFFLAGS
, &ifr
);
1125 static bool check_ifaddr(struct nlmsghdr
*hdr
, int ifindex
)
1127 struct ifaddrmsg
*ifa
= NLMSG_DATA(hdr
);
1129 return ifa
->ifa_index
== ifindex
;
1132 static bool check_route(struct nlmsghdr
*hdr
, int ifindex
)
1134 struct rtmsg
*r
= NLMSG_DATA(hdr
);
1135 struct nlattr
*tb
[__RTA_MAX
];
1137 if (r
->rtm_protocol
== RTPROT_KERNEL
&&
1138 r
->rtm_family
== AF_INET6
)
1141 nlmsg_parse(hdr
, sizeof(struct rtmsg
), tb
, __RTA_MAX
- 1, NULL
);
1145 return *(int *)RTA_DATA(tb
[RTA_OIF
]) == ifindex
;
1148 static bool check_rule(struct nlmsghdr
*hdr
, int ifindex
)
1153 static int cb_clear_event(struct nl_msg
*msg
, void *arg
)
1155 struct clear_data
*clr
= arg
;
1156 struct nlmsghdr
*hdr
= nlmsg_hdr(msg
);
1157 bool (*cb
)(struct nlmsghdr
*, int ifindex
);
1163 if (hdr
->nlmsg_type
!= RTM_NEWADDR
)
1169 type
= RTM_DELROUTE
;
1170 if (hdr
->nlmsg_type
!= RTM_NEWROUTE
)
1177 if (hdr
->nlmsg_type
!= RTM_NEWRULE
)
1186 if (!cb(hdr
, clr
->dev
? clr
->dev
->ifindex
: 0))
1189 if (type
== RTM_DELRULE
)
1190 D(SYSTEM
, "Remove a rule\n");
1192 D(SYSTEM
, "Remove %s from device %s\n",
1193 type
== RTM_DELADDR
? "an address" : "a route",
1196 memcpy(nlmsg_hdr(clr
->msg
), hdr
, hdr
->nlmsg_len
);
1197 hdr
= nlmsg_hdr(clr
->msg
);
1198 hdr
->nlmsg_type
= type
;
1199 hdr
->nlmsg_flags
= NLM_F_REQUEST
;
1201 nl_socket_disable_auto_ack(sock_rtnl
);
1202 ret
= nl_send_auto_complete(sock_rtnl
, clr
->msg
);
1204 if (type
== RTM_DELRULE
)
1205 D(SYSTEM
, "Error deleting a rule: %d\n", ret
);
1207 D(SYSTEM
, "Error deleting %s from device '%s': %d\n",
1208 type
== RTM_DELADDR
? "an address" : "a route",
1209 clr
->dev
->ifname
, ret
);
1212 nl_socket_enable_auto_ack(sock_rtnl
);
1218 cb_finish_event(struct nl_msg
*msg
, void *arg
)
1226 error_handler(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1229 *pending
= err
->error
;
1234 system_if_clear_entries(struct device
*dev
, int type
, int af
)
1236 struct clear_data clr
;
1238 struct rtmsg rtm
= {
1240 .rtm_flags
= RTM_F_CLONED
,
1242 int flags
= NLM_F_DUMP
;
1251 clr
.size
= sizeof(struct rtgenmsg
);
1254 clr
.size
= sizeof(struct rtmsg
);
1260 cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1264 clr
.msg
= nlmsg_alloc_simple(type
, flags
);
1268 nlmsg_append(clr
.msg
, &rtm
, clr
.size
, 0);
1269 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_clear_event
, &clr
);
1270 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, cb_finish_event
, &pending
);
1271 nl_cb_err(cb
, NL_CB_CUSTOM
, error_handler
, &pending
);
1273 if (nl_send_auto_complete(sock_rtnl
, clr
.msg
) < 0)
1277 nl_recvmsgs(sock_rtnl
, cb
);
1280 nlmsg_free(clr
.msg
);
1286 * Clear bridge (membership) state and bring down device
1288 void system_if_clear_state(struct device
*dev
)
1290 static char buf
[256];
1292 device_set_ifindex(dev
, system_if_resolve(dev
));
1294 if (dev
->external
|| !dev
->ifindex
)
1297 system_if_flags(dev
->ifname
, 0, IFF_UP
);
1299 if (system_is_bridge(dev
->ifname
)) {
1300 D(SYSTEM
, "Delete existing bridge named '%s'\n", dev
->ifname
);
1301 system_bridge_delbr(dev
);
1305 bridge
= system_get_bridge(dev
->ifname
, buf
, sizeof(buf
));
1307 D(SYSTEM
, "Remove device '%s' from bridge '%s'\n", dev
->ifname
, bridge
);
1308 system_bridge_if(bridge
, dev
, SIOCBRDELIF
, NULL
);
1311 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET
);
1312 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET
);
1313 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET6
);
1314 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET6
);
1315 system_if_clear_entries(dev
, RTM_GETNEIGH
, AF_INET
);
1316 system_if_clear_entries(dev
, RTM_GETNEIGH
, AF_INET6
);
1317 system_set_disable_ipv6(dev
, "0");
1320 static inline unsigned long
1321 sec_to_jiffies(int val
)
1323 return (unsigned long) val
* 100;
1326 static void system_bridge_conf_multicast_deps(struct device
*bridge
,
1327 struct bridge_config
*cfg
,
1333 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
||
1334 cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
||
1335 cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
1336 val
= cfg
->robustness
* cfg
->query_interval
+
1337 cfg
->query_response_interval
;
1339 snprintf(buf
, buf_len
, "%i", val
);
1340 system_bridge_set_membership_interval(bridge
, buf
);
1342 val
= cfg
->robustness
* cfg
->query_interval
+
1343 cfg
->query_response_interval
/ 2;
1345 snprintf(buf
, buf_len
, "%i", val
);
1346 system_bridge_set_other_querier_timeout(bridge
, buf
);
1349 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1350 val
= cfg
->query_interval
/ 4;
1352 snprintf(buf
, buf_len
, "%i", val
);
1353 system_bridge_set_startup_query_interval(bridge
, buf
);
1357 static void system_bridge_conf_multicast(struct device
*bridge
,
1358 struct bridge_config
*cfg
,
1362 system_set_dev_sysfs("bridge/multicast_snooping",
1363 bridge
->ifname
, cfg
->igmp_snoop
? "1" : "0");
1365 system_set_dev_sysfs("bridge/multicast_querier",
1366 bridge
->ifname
, cfg
->multicast_querier
? "1" : "0");
1368 snprintf(buf
, buf_len
, "%i", cfg
->hash_max
);
1369 system_set_dev_sysfs("/bridge/hash_max",
1370 bridge
->ifname
, buf
);
1372 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
1373 snprintf(buf
, buf_len
, "%u", bridge
->settings
.multicast_router
);
1374 system_bridge_set_multicast_router(bridge
, buf
, true);
1377 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
) {
1378 snprintf(buf
, buf_len
, "%i", cfg
->robustness
);
1379 system_bridge_set_robustness(bridge
, buf
);
1382 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1383 snprintf(buf
, buf_len
, "%i", cfg
->query_interval
);
1384 system_bridge_set_query_interval(bridge
, buf
);
1387 if (cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
1388 snprintf(buf
, buf_len
, "%i", cfg
->query_response_interval
);
1389 system_bridge_set_query_response_interval(bridge
, buf
);
1392 if (cfg
->flags
& BRIDGE_OPT_LAST_MEMBER_INTERVAL
) {
1393 snprintf(buf
, buf_len
, "%i", cfg
->last_member_interval
);
1394 system_bridge_set_last_member_interval(bridge
, buf
);
1397 system_bridge_conf_multicast_deps(bridge
, cfg
, buf
, buf_len
);
1400 int system_bridge_addbr(struct device
*bridge
, struct bridge_config
*cfg
)
1404 if (ioctl(sock_ioctl
, SIOCBRADDBR
, bridge
->ifname
) < 0)
1407 system_bridge_set_stp_state(bridge
, cfg
->stp
);
1409 snprintf(buf
, sizeof(buf
), "%lu", sec_to_jiffies(cfg
->forward_delay
));
1410 system_bridge_set_forward_delay(bridge
, buf
);
1412 system_bridge_conf_multicast(bridge
, cfg
, buf
, sizeof(buf
));
1413 system_bridge_set_vlan_filtering(bridge
, cfg
->vlan_filtering
? "1" : "0");
1415 snprintf(buf
, sizeof(buf
), "%d", cfg
->priority
);
1416 system_bridge_set_priority(bridge
, buf
);
1418 snprintf(buf
, sizeof(buf
), "%lu", sec_to_jiffies(cfg
->hello_time
));
1419 system_bridge_set_hello_time(bridge
, buf
);
1421 snprintf(buf
, sizeof(buf
), "%lu", sec_to_jiffies(cfg
->max_age
));
1422 system_bridge_set_max_age(bridge
, buf
);
1424 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
) {
1425 snprintf(buf
, sizeof(buf
), "%lu", sec_to_jiffies(cfg
->ageing_time
));
1426 system_bridge_set_ageing_time(bridge
, buf
);
1432 int system_macvlan_add(struct device
*macvlan
, struct device
*dev
, struct macvlan_config
*cfg
)
1435 struct nlattr
*linkinfo
, *data
;
1436 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
1438 static const struct {
1440 enum macvlan_mode val
;
1442 { "private", MACVLAN_MODE_PRIVATE
},
1443 { "vepa", MACVLAN_MODE_VEPA
},
1444 { "bridge", MACVLAN_MODE_BRIDGE
},
1445 { "passthru", MACVLAN_MODE_PASSTHRU
},
1448 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1453 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1455 if (cfg
->flags
& MACVLAN_OPT_MACADDR
)
1456 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1457 nla_put_string(msg
, IFLA_IFNAME
, macvlan
->ifname
);
1458 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1460 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1461 goto nla_put_failure
;
1463 nla_put_string(msg
, IFLA_INFO_KIND
, "macvlan");
1465 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1466 goto nla_put_failure
;
1469 for (i
= 0; i
< ARRAY_SIZE(modes
); i
++) {
1470 if (strcmp(cfg
->mode
, modes
[i
].name
) != 0)
1473 nla_put_u32(msg
, IFLA_MACVLAN_MODE
, modes
[i
].val
);
1478 nla_nest_end(msg
, data
);
1479 nla_nest_end(msg
, linkinfo
);
1481 rv
= system_rtnl_call(msg
);
1483 D(SYSTEM
, "Error adding macvlan '%s' over '%s': %d\n", macvlan
->ifname
, dev
->ifname
, rv
);
1492 int system_link_netns_move(struct device
*dev
, int netns_fd
, const char *target_ifname
)
1495 struct ifinfomsg iim
= {
1496 .ifi_family
= AF_UNSPEC
,
1502 iim
.ifi_index
= system_if_resolve(dev
);
1503 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
);
1508 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1510 nla_put_string(msg
, IFLA_IFNAME
, target_ifname
);
1512 nla_put_u32(msg
, IFLA_NET_NS_FD
, netns_fd
);
1513 return system_rtnl_call(msg
);
1516 static int system_link_del(const char *ifname
)
1519 struct ifinfomsg iim
= {
1520 .ifi_family
= AF_UNSPEC
,
1524 msg
= nlmsg_alloc_simple(RTM_DELLINK
, NLM_F_REQUEST
);
1529 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1530 nla_put_string(msg
, IFLA_IFNAME
, ifname
);
1531 return system_rtnl_call(msg
);
1534 int system_macvlan_del(struct device
*macvlan
)
1536 return system_link_del(macvlan
->ifname
);
1539 int system_netns_open(const pid_t target_ns
)
1541 char pid_net_path
[PATH_MAX
];
1543 snprintf(pid_net_path
, sizeof(pid_net_path
), "/proc/%u/ns/net", target_ns
);
1545 return open(pid_net_path
, O_RDONLY
);
1548 int system_netns_set(int netns_fd
)
1550 return setns(netns_fd
, CLONE_NEWNET
);
1553 int system_veth_add(struct device
*veth
, struct veth_config
*cfg
)
1556 struct ifinfomsg empty_iim
= {};
1557 struct nlattr
*linkinfo
, *data
, *veth_info
;
1560 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1565 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1567 if (cfg
->flags
& VETH_OPT_MACADDR
)
1568 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1569 nla_put_string(msg
, IFLA_IFNAME
, veth
->ifname
);
1571 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1572 goto nla_put_failure
;
1574 nla_put_string(msg
, IFLA_INFO_KIND
, "veth");
1576 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1577 goto nla_put_failure
;
1579 if (!(veth_info
= nla_nest_start(msg
, VETH_INFO_PEER
)))
1580 goto nla_put_failure
;
1582 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1584 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1585 nla_put_string(msg
, IFLA_IFNAME
, cfg
->peer_name
);
1586 if (cfg
->flags
& VETH_OPT_PEER_MACADDR
)
1587 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->peer_macaddr
), cfg
->peer_macaddr
);
1589 nla_nest_end(msg
, veth_info
);
1590 nla_nest_end(msg
, data
);
1591 nla_nest_end(msg
, linkinfo
);
1593 rv
= system_rtnl_call(msg
);
1595 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1596 D(SYSTEM
, "Error adding veth '%s' with peer '%s': %d\n", veth
->ifname
, cfg
->peer_name
, rv
);
1598 D(SYSTEM
, "Error adding veth '%s': %d\n", veth
->ifname
, rv
);
1608 int system_veth_del(struct device
*veth
)
1610 return system_link_del(veth
->ifname
);
1613 static int system_vlan(struct device
*dev
, int id
)
1615 struct vlan_ioctl_args ifr
= {
1616 .cmd
= SET_VLAN_NAME_TYPE_CMD
,
1617 .u
.name_type
= VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
,
1620 if (ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
) < 0)
1624 ifr
.cmd
= DEL_VLAN_CMD
;
1627 ifr
.cmd
= ADD_VLAN_CMD
;
1630 strncpy(ifr
.device1
, dev
->ifname
, sizeof(ifr
.device1
));
1631 return ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
1634 int system_vlan_add(struct device
*dev
, int id
)
1636 return system_vlan(dev
, id
);
1639 int system_vlan_del(struct device
*dev
)
1641 return system_vlan(dev
, -1);
1644 int system_vlandev_add(struct device
*vlandev
, struct device
*dev
, struct vlandev_config
*cfg
)
1647 struct nlattr
*linkinfo
, *data
, *qos
;
1648 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
};
1649 struct vlan_qos_mapping
*elem
;
1650 struct ifla_vlan_qos_mapping nl_qos_map
;
1653 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1658 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1659 nla_put_string(msg
, IFLA_IFNAME
, vlandev
->ifname
);
1660 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1662 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1663 goto nla_put_failure
;
1665 nla_put_string(msg
, IFLA_INFO_KIND
, "vlan");
1667 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1668 goto nla_put_failure
;
1670 nla_put_u16(msg
, IFLA_VLAN_ID
, cfg
->vid
);
1672 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
1673 nla_put_u16(msg
, IFLA_VLAN_PROTOCOL
, htons(cfg
->proto
));
1675 if(cfg
->proto
== VLAN_PROTO_8021AD
)
1676 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
);
1679 if (!(qos
= nla_nest_start(msg
, IFLA_VLAN_INGRESS_QOS
)))
1680 goto nla_put_failure
;
1682 vlist_simple_for_each_element(&cfg
->ingress_qos_mapping_list
, elem
, node
) {
1683 nl_qos_map
.from
= elem
->from
;
1684 nl_qos_map
.to
= elem
->to
;
1685 nla_put(msg
, IFLA_VLAN_QOS_MAPPING
, sizeof(nl_qos_map
), &nl_qos_map
);
1687 nla_nest_end(msg
, qos
);
1689 if (!(qos
= nla_nest_start(msg
, IFLA_VLAN_EGRESS_QOS
)))
1690 goto nla_put_failure
;
1692 vlist_simple_for_each_element(&cfg
->egress_qos_mapping_list
, elem
, node
) {
1693 nl_qos_map
.from
= elem
->from
;
1694 nl_qos_map
.to
= elem
->to
;
1695 nla_put(msg
, IFLA_VLAN_QOS_MAPPING
, sizeof(nl_qos_map
), &nl_qos_map
);
1697 nla_nest_end(msg
, qos
);
1699 nla_nest_end(msg
, data
);
1700 nla_nest_end(msg
, linkinfo
);
1702 rv
= system_rtnl_call(msg
);
1704 D(SYSTEM
, "Error adding vlandev '%s' over '%s': %d\n", vlandev
->ifname
, dev
->ifname
, rv
);
1713 int system_vlandev_del(struct device
*vlandev
)
1715 return system_link_del(vlandev
->ifname
);
1719 system_set_ethtool_settings(struct device
*dev
, struct device_settings
*s
)
1721 struct ethtool_cmd ecmd
= {
1722 .cmd
= ETHTOOL_GSET
,
1724 struct ifreq ifr
= {
1725 .ifr_data
= (caddr_t
)&ecmd
,
1727 static const struct {
1732 { 10, ETHTOOL_LINK_MODE_10baseT_Half_BIT
, ETHTOOL_LINK_MODE_10baseT_Full_BIT
},
1733 { 100, ETHTOOL_LINK_MODE_100baseT_Half_BIT
, ETHTOOL_LINK_MODE_100baseT_Full_BIT
},
1734 { 1000, ETHTOOL_LINK_MODE_1000baseT_Half_BIT
, ETHTOOL_LINK_MODE_1000baseT_Full_BIT
},
1739 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1741 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0)
1744 adv
= ecmd
.supported
;
1745 for (i
= 0; i
< ARRAY_SIZE(speed_mask
); i
++) {
1746 if (s
->flags
& DEV_OPT_DUPLEX
) {
1747 int bit
= s
->duplex
? speed_mask
[i
].bit_half
: speed_mask
[i
].bit_full
;
1751 if (!(s
->flags
& DEV_OPT_SPEED
) ||
1752 s
->speed
== speed_mask
[i
].speed
)
1755 adv
&= ~(1 << speed_mask
[i
].bit_full
);
1756 adv
&= ~(1 << speed_mask
[i
].bit_half
);
1760 if (ecmd
.autoneg
&& ecmd
.advertising
== adv
)
1764 ecmd
.advertising
= adv
;
1765 ecmd
.cmd
= ETHTOOL_SSET
;
1766 ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
);
1770 system_if_get_settings(struct device
*dev
, struct device_settings
*s
)
1775 memset(&ifr
, 0, sizeof(ifr
));
1776 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1778 if (ioctl(sock_ioctl
, SIOCGIFMTU
, &ifr
) == 0) {
1779 s
->mtu
= ifr
.ifr_mtu
;
1780 s
->flags
|= DEV_OPT_MTU
;
1783 s
->mtu6
= system_update_ipv6_mtu(dev
, 0);
1785 s
->flags
|= DEV_OPT_MTU6
;
1787 if (ioctl(sock_ioctl
, SIOCGIFTXQLEN
, &ifr
) == 0) {
1788 s
->txqueuelen
= ifr
.ifr_qlen
;
1789 s
->flags
|= DEV_OPT_TXQUEUELEN
;
1792 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0) {
1793 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
1794 s
->flags
|= DEV_OPT_MACADDR
;
1797 if (!system_get_disable_ipv6(dev
, buf
, sizeof(buf
))) {
1798 s
->ipv6
= !strtoul(buf
, NULL
, 0);
1799 s
->flags
|= DEV_OPT_IPV6
;
1802 if (!system_get_ip6segmentrouting(dev
, buf
, sizeof(buf
))) {
1803 s
->ip6segmentrouting
= strtoul(buf
, NULL
, 0);
1804 s
->flags
|= DEV_OPT_IP6SEGMENTROUTING
;
1807 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) == 0) {
1808 s
->promisc
= ifr
.ifr_flags
& IFF_PROMISC
;
1809 s
->flags
|= DEV_OPT_PROMISC
;
1811 s
->multicast
= ifr
.ifr_flags
& IFF_MULTICAST
;
1812 s
->flags
|= DEV_OPT_MULTICAST
;
1815 if (!system_get_rpfilter(dev
, buf
, sizeof(buf
))) {
1816 s
->rpfilter
= strtoul(buf
, NULL
, 0);
1817 s
->flags
|= DEV_OPT_RPFILTER
;
1820 if (!system_get_acceptlocal(dev
, buf
, sizeof(buf
))) {
1821 s
->acceptlocal
= strtoul(buf
, NULL
, 0);
1822 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
1825 if (!system_get_igmpversion(dev
, buf
, sizeof(buf
))) {
1826 s
->igmpversion
= strtoul(buf
, NULL
, 0);
1827 s
->flags
|= DEV_OPT_IGMPVERSION
;
1830 if (!system_get_mldversion(dev
, buf
, sizeof(buf
))) {
1831 s
->mldversion
= strtoul(buf
, NULL
, 0);
1832 s
->flags
|= DEV_OPT_MLDVERSION
;
1835 if (!system_get_neigh4reachabletime(dev
, buf
, sizeof(buf
))) {
1836 s
->neigh4reachabletime
= strtoul(buf
, NULL
, 0);
1837 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1840 if (!system_get_neigh6reachabletime(dev
, buf
, sizeof(buf
))) {
1841 s
->neigh6reachabletime
= strtoul(buf
, NULL
, 0);
1842 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1845 if (!system_get_neigh4locktime(dev
, buf
, sizeof(buf
))) {
1846 s
->neigh4locktime
= strtol(buf
, NULL
, 0);
1847 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
1850 if (!system_get_neigh4gcstaletime(dev
, buf
, sizeof(buf
))) {
1851 s
->neigh4gcstaletime
= strtoul(buf
, NULL
, 0);
1852 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1855 if (!system_get_neigh6gcstaletime(dev
, buf
, sizeof(buf
))) {
1856 s
->neigh6gcstaletime
= strtoul(buf
, NULL
, 0);
1857 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1860 if (!system_get_dadtransmits(dev
, buf
, sizeof(buf
))) {
1861 s
->dadtransmits
= strtoul(buf
, NULL
, 0);
1862 s
->flags
|= DEV_OPT_DADTRANSMITS
;
1865 if (!system_get_sendredirects(dev
, buf
, sizeof(buf
))) {
1866 s
->sendredirects
= strtoul(buf
, NULL
, 0);
1867 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
1870 if (!system_get_drop_v4_unicast_in_l2_multicast(dev
, buf
, sizeof(buf
))) {
1871 s
->drop_v4_unicast_in_l2_multicast
= strtoul(buf
, NULL
, 0);
1872 s
->flags
|= DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
;
1875 if (!system_get_drop_v6_unicast_in_l2_multicast(dev
, buf
, sizeof(buf
))) {
1876 s
->drop_v6_unicast_in_l2_multicast
= strtoul(buf
, NULL
, 0);
1877 s
->flags
|= DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
;
1880 if (!system_get_drop_gratuitous_arp(dev
, buf
, sizeof(buf
))) {
1881 s
->drop_gratuitous_arp
= strtoul(buf
, NULL
, 0);
1882 s
->flags
|= DEV_OPT_DROP_GRATUITOUS_ARP
;
1885 if (!system_get_drop_unsolicited_na(dev
, buf
, sizeof(buf
))) {
1886 s
->drop_unsolicited_na
= strtoul(buf
, NULL
, 0);
1887 s
->flags
|= DEV_OPT_DROP_UNSOLICITED_NA
;
1890 if (!system_get_arp_accept(dev
, buf
, sizeof(buf
))) {
1891 s
->arp_accept
= strtoul(buf
, NULL
, 0);
1892 s
->flags
|= DEV_OPT_ARP_ACCEPT
;
1897 system_if_apply_settings(struct device
*dev
, struct device_settings
*s
, uint64_t apply_mask
)
1902 apply_mask
&= s
->flags
;
1904 memset(&ifr
, 0, sizeof(ifr
));
1905 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1906 if (apply_mask
& DEV_OPT_MTU
) {
1907 ifr
.ifr_mtu
= s
->mtu
;
1908 if (ioctl(sock_ioctl
, SIOCSIFMTU
, &ifr
) < 0)
1909 s
->flags
&= ~DEV_OPT_MTU
;
1911 if (apply_mask
& DEV_OPT_MTU6
) {
1912 system_update_ipv6_mtu(dev
, s
->mtu6
);
1914 if (apply_mask
& DEV_OPT_TXQUEUELEN
) {
1915 ifr
.ifr_qlen
= s
->txqueuelen
;
1916 if (ioctl(sock_ioctl
, SIOCSIFTXQLEN
, &ifr
) < 0)
1917 s
->flags
&= ~DEV_OPT_TXQUEUELEN
;
1919 if ((apply_mask
& (DEV_OPT_MACADDR
| DEV_OPT_DEFAULT_MACADDR
)) && !dev
->external
) {
1920 ifr
.ifr_hwaddr
.sa_family
= ARPHRD_ETHER
;
1921 memcpy(&ifr
.ifr_hwaddr
.sa_data
, s
->macaddr
, sizeof(s
->macaddr
));
1922 if (ioctl(sock_ioctl
, SIOCSIFHWADDR
, &ifr
) < 0)
1923 s
->flags
&= ~DEV_OPT_MACADDR
;
1925 if (apply_mask
& DEV_OPT_IPV6
)
1926 system_set_disable_ipv6(dev
, s
->ipv6
? "0" : "1");
1927 if (s
->flags
& DEV_OPT_IP6SEGMENTROUTING
& apply_mask
) {
1928 struct device dummy
= {
1931 bool ip6segmentrouting
= device_check_ip6segmentrouting();
1933 system_set_ip6segmentrouting(dev
, s
->ip6segmentrouting
? "1" : "0");
1934 system_set_ip6segmentrouting(&dummy
, ip6segmentrouting
? "1" : "0");
1936 if (apply_mask
& DEV_OPT_PROMISC
) {
1937 if (system_if_flags(dev
->ifname
, s
->promisc
? IFF_PROMISC
: 0,
1938 !s
->promisc
? IFF_PROMISC
: 0) < 0)
1939 s
->flags
&= ~DEV_OPT_PROMISC
;
1941 if (apply_mask
& DEV_OPT_RPFILTER
) {
1942 snprintf(buf
, sizeof(buf
), "%u", s
->rpfilter
);
1943 system_set_rpfilter(dev
, buf
);
1945 if (apply_mask
& DEV_OPT_ACCEPTLOCAL
)
1946 system_set_acceptlocal(dev
, s
->acceptlocal
? "1" : "0");
1947 if (apply_mask
& DEV_OPT_IGMPVERSION
) {
1948 snprintf(buf
, sizeof(buf
), "%u", s
->igmpversion
);
1949 system_set_igmpversion(dev
, buf
);
1951 if (apply_mask
& DEV_OPT_MLDVERSION
) {
1952 snprintf(buf
, sizeof(buf
), "%u", s
->mldversion
);
1953 system_set_mldversion(dev
, buf
);
1955 if (apply_mask
& DEV_OPT_NEIGHREACHABLETIME
) {
1956 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4reachabletime
);
1957 system_set_neigh4reachabletime(dev
, buf
);
1958 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6reachabletime
);
1959 system_set_neigh6reachabletime(dev
, buf
);
1961 if (apply_mask
& DEV_OPT_NEIGHLOCKTIME
) {
1962 snprintf(buf
, sizeof(buf
), "%d", s
->neigh4locktime
);
1963 system_set_neigh4locktime(dev
, buf
);
1965 if (apply_mask
& DEV_OPT_NEIGHGCSTALETIME
) {
1966 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4gcstaletime
);
1967 system_set_neigh4gcstaletime(dev
, buf
);
1968 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6gcstaletime
);
1969 system_set_neigh6gcstaletime(dev
, buf
);
1971 if (apply_mask
& DEV_OPT_DADTRANSMITS
) {
1972 snprintf(buf
, sizeof(buf
), "%u", s
->dadtransmits
);
1973 system_set_dadtransmits(dev
, buf
);
1975 if (apply_mask
& DEV_OPT_MULTICAST
) {
1976 if (system_if_flags(dev
->ifname
, s
->multicast
? IFF_MULTICAST
: 0,
1977 !s
->multicast
? IFF_MULTICAST
: 0) < 0)
1978 s
->flags
&= ~DEV_OPT_MULTICAST
;
1980 if (apply_mask
& DEV_OPT_SENDREDIRECTS
)
1981 system_set_sendredirects(dev
, s
->sendredirects
? "1" : "0");
1982 if (apply_mask
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
)
1983 system_set_drop_v4_unicast_in_l2_multicast(dev
, s
->drop_v4_unicast_in_l2_multicast
? "1" : "0");
1984 if (apply_mask
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
)
1985 system_set_drop_v6_unicast_in_l2_multicast(dev
, s
->drop_v6_unicast_in_l2_multicast
? "1" : "0");
1986 if (apply_mask
& DEV_OPT_DROP_GRATUITOUS_ARP
)
1987 system_set_drop_gratuitous_arp(dev
, s
->drop_gratuitous_arp
? "1" : "0");
1988 if (apply_mask
& DEV_OPT_DROP_UNSOLICITED_NA
)
1989 system_set_drop_unsolicited_na(dev
, s
->drop_unsolicited_na
? "1" : "0");
1990 if (apply_mask
& DEV_OPT_ARP_ACCEPT
)
1991 system_set_arp_accept(dev
, s
->arp_accept
? "1" : "0");
1992 system_set_ethtool_settings(dev
, s
);
1995 int system_if_up(struct device
*dev
)
1997 return system_if_flags(dev
->ifname
, IFF_UP
, 0);
2000 int system_if_down(struct device
*dev
)
2002 return system_if_flags(dev
->ifname
, 0, IFF_UP
);
2005 struct if_check_data
{
2011 #ifndef IFF_LOWER_UP
2012 #define IFF_LOWER_UP 0x10000
2015 static int cb_if_check_valid(struct nl_msg
*msg
, void *arg
)
2017 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
2018 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
2019 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
2021 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
2024 if (chk
->dev
->type
== &simple_device_type
)
2025 device_set_present(chk
->dev
, ifi
->ifi_index
> 0 ? true : false);
2026 device_set_link(chk
->dev
, ifi
->ifi_flags
& IFF_LOWER_UP
? true : false);
2031 static int cb_if_check_ack(struct nl_msg
*msg
, void *arg
)
2033 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
2038 static int cb_if_check_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
2040 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
2042 if (chk
->dev
->type
== &simple_device_type
)
2043 device_set_present(chk
->dev
, false);
2044 device_set_link(chk
->dev
, false);
2045 chk
->pending
= err
->error
;
2050 struct bridge_vlan_check_data
{
2051 struct device
*check_dev
;
2057 static void bridge_vlan_check_port(struct bridge_vlan_check_data
*data
,
2058 struct bridge_vlan_port
*port
,
2059 struct bridge_vlan_info
*vinfo
)
2061 uint16_t flags
= 0, diff
, mask
;
2063 if (port
->flags
& BRVLAN_F_PVID
)
2064 flags
|= BRIDGE_VLAN_INFO_PVID
;
2065 if (port
->flags
& BRVLAN_F_UNTAGGED
)
2066 flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
2068 diff
= vinfo
->flags
^ flags
;
2069 mask
= BRVLAN_F_UNTAGGED
| (flags
& BRIDGE_VLAN_INFO_PVID
);
2072 data
->pending
= false;
2078 static void bridge_vlan_check_attr(struct bridge_vlan_check_data
*data
,
2079 struct rtattr
*attr
)
2081 struct bridge_vlan_hotplug_port
*port
;
2082 struct bridge_vlan_info
*vinfo
;
2083 struct bridge_vlan
*vlan
;
2085 int rem
= RTA_PAYLOAD(attr
);
2088 for (cur
= RTA_DATA(attr
); RTA_OK(cur
, rem
); cur
= RTA_NEXT(cur
, rem
)) {
2089 if (cur
->rta_type
!= IFLA_BRIDGE_VLAN_INFO
)
2092 vinfo
= RTA_DATA(cur
);
2093 vlan
= vlist_find(&data
->check_dev
->vlans
, &vinfo
->vid
, vlan
, node
);
2096 data
->pending
= false;
2100 for (i
= 0; i
< vlan
->n_ports
; i
++)
2101 if (!vlan
->ports
[i
].check
)
2102 bridge_vlan_check_port(data
, &vlan
->ports
[i
], vinfo
);
2104 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
)
2105 if (!port
->port
.check
)
2106 bridge_vlan_check_port(data
, &port
->port
, vinfo
);
2110 static int bridge_vlan_check_cb(struct nl_msg
*msg
, void *arg
)
2112 struct bridge_vlan_check_data
*data
= arg
;
2113 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
2114 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
2115 struct rtattr
*attr
;
2118 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
2121 if (ifi
->ifi_family
!= AF_BRIDGE
)
2124 if (ifi
->ifi_index
!= data
->ifindex
)
2127 attr
= IFLA_RTA(ifi
);
2128 rem
= nh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*ifi
));
2129 while (RTA_OK(attr
, rem
)) {
2130 if (attr
->rta_type
== IFLA_AF_SPEC
)
2131 bridge_vlan_check_attr(data
, attr
);
2133 attr
= RTA_NEXT(attr
, rem
);
2139 static int bridge_vlan_ack_cb(struct nl_msg
*msg
, void *arg
)
2141 struct bridge_vlan_check_data
*data
= arg
;
2142 data
->pending
= false;
2146 static int bridge_vlan_error_cb(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
2148 struct bridge_vlan_check_data
*data
= arg
;
2149 data
->pending
= false;
2153 int system_bridge_vlan_check(struct device
*dev
, char *ifname
)
2155 struct bridge_vlan_check_data data
= {
2157 .ifindex
= if_nametoindex(ifname
),
2161 static struct ifinfomsg ifi
= {
2162 .ifi_family
= AF_BRIDGE
2164 static struct rtattr ext_req
= {
2165 .rta_type
= IFLA_EXT_MASK
,
2166 .rta_len
= RTA_LENGTH(sizeof(uint32_t)),
2168 uint32_t filter
= RTEXT_FILTER_BRVLAN
;
2169 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
2170 struct bridge_vlan
*vlan
;
2177 msg
= nlmsg_alloc_simple(RTM_GETLINK
, NLM_F_DUMP
);
2179 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
2180 nlmsg_append(msg
, &ext_req
, sizeof(ext_req
), NLMSG_ALIGNTO
) ||
2181 nlmsg_append(msg
, &filter
, sizeof(filter
), 0))
2184 vlist_for_each_element(&dev
->vlans
, vlan
, node
) {
2185 struct bridge_vlan_hotplug_port
*port
;
2187 for (i
= 0; i
< vlan
->n_ports
; i
++) {
2188 if (!strcmp(vlan
->ports
[i
].ifname
, ifname
))
2189 vlan
->ports
[i
].check
= 0;
2191 vlan
->ports
[i
].check
= -1;
2194 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
2195 if (!strcmp(port
->port
.ifname
, ifname
))
2196 port
->port
.check
= 0;
2198 port
->port
.check
= -1;
2202 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, bridge_vlan_check_cb
, &data
);
2203 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, bridge_vlan_ack_cb
, &data
);
2204 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, bridge_vlan_ack_cb
, &data
);
2205 nl_cb_err(cb
, NL_CB_CUSTOM
, bridge_vlan_error_cb
, &data
);
2207 if (nl_send_auto_complete(sock_rtnl
, msg
) < 0)
2211 while (data
.pending
)
2212 nl_recvmsgs(sock_rtnl
, cb
);
2214 vlist_for_each_element(&dev
->vlans
, vlan
, node
) {
2215 struct bridge_vlan_hotplug_port
*port
;
2217 for (i
= 0; i
< vlan
->n_ports
; i
++) {
2218 if (!vlan
->ports
[i
].check
) {
2224 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
2225 if (!port
->port
.check
) {
2241 int system_if_check(struct device
*dev
)
2243 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
2245 struct ifinfomsg ifi
= {
2246 .ifi_family
= AF_UNSPEC
,
2249 struct if_check_data chk
= {
2258 msg
= nlmsg_alloc_simple(RTM_GETLINK
, 0);
2262 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
2263 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
2266 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_check_valid
, &chk
);
2267 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_check_ack
, &chk
);
2268 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_check_error
, &chk
);
2270 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
2274 while (chk
.pending
> 0)
2275 nl_recvmsgs(sock_rtnl
, cb
);
2287 system_if_get_parent(struct device
*dev
)
2289 char buf
[64], *devname
;
2290 int ifindex
, iflink
;
2292 if (system_get_dev_sysfs("iflink", dev
->ifname
, buf
, sizeof(buf
)) < 0)
2295 iflink
= strtoul(buf
, NULL
, 0);
2296 ifindex
= system_if_resolve(dev
);
2297 if (!iflink
|| iflink
== ifindex
)
2300 devname
= if_indextoname(iflink
, buf
);
2304 return device_get(devname
, true);
2308 read_string_file(int dir_fd
, const char *file
, char *buf
, int len
)
2314 fd
= openat(dir_fd
, file
, O_RDONLY
);
2319 len
= read(fd
, buf
, len
- 1);
2323 } else if (len
> 0) {
2326 c
= strchr(buf
, '\n');
2339 read_uint64_file(int dir_fd
, const char *file
, uint64_t *val
)
2344 ret
= read_string_file(dir_fd
, file
, buf
, sizeof(buf
));
2346 *val
= strtoull(buf
, NULL
, 0);
2351 /* Assume advertised flags == supported flags */
2352 static const struct {
2355 } ethtool_link_modes
[] = {
2356 { ADVERTISED_10baseT_Half
, "10baseT-H" },
2357 { ADVERTISED_10baseT_Full
, "10baseT-F" },
2358 { ADVERTISED_100baseT_Half
, "100baseT-H" },
2359 { ADVERTISED_100baseT_Full
, "100baseT-F" },
2360 { ADVERTISED_1000baseT_Half
, "1000baseT-H" },
2361 { ADVERTISED_1000baseT_Full
, "1000baseT-F" },
2362 { ADVERTISED_1000baseKX_Full
, "1000baseKX-F" },
2363 { ADVERTISED_2500baseX_Full
, "2500baseX-F" },
2364 { ADVERTISED_10000baseT_Full
, "10000baseT-F" },
2365 { ADVERTISED_10000baseKX4_Full
, "10000baseKX4-F" },
2366 { ADVERTISED_10000baseKR_Full
, "10000baseKR-F" },
2367 { ADVERTISED_20000baseMLD2_Full
, "20000baseMLD2-F" },
2368 { ADVERTISED_20000baseKR2_Full
, "20000baseKR2-F" },
2369 { ADVERTISED_40000baseKR4_Full
, "40000baseKR4-F" },
2370 { ADVERTISED_40000baseCR4_Full
, "40000baseCR4-F" },
2371 { ADVERTISED_40000baseSR4_Full
, "40000baseSR4-F" },
2372 { ADVERTISED_40000baseLR4_Full
, "40000baseLR4-F" },
2373 #ifdef ADVERTISED_56000baseKR4_Full
2374 { ADVERTISED_56000baseKR4_Full
, "56000baseKR4-F" },
2375 { ADVERTISED_56000baseCR4_Full
, "56000baseCR4-F" },
2376 { ADVERTISED_56000baseSR4_Full
, "56000baseSR4-F" },
2377 { ADVERTISED_56000baseLR4_Full
, "56000baseLR4-F" },
2381 static void system_add_link_modes(struct blob_buf
*b
, __u32 mask
)
2384 for (i
= 0; i
< ARRAY_SIZE(ethtool_link_modes
); i
++) {
2385 if (mask
& ethtool_link_modes
[i
].mask
)
2386 blobmsg_add_string(b
, NULL
, ethtool_link_modes
[i
].name
);
2391 system_if_force_external(const char *ifname
)
2395 return stat(dev_sysfs_path(ifname
, "phy80211"), &s
) == 0;
2399 system_netdevtype_name(unsigned short dev_type
)
2403 for (i
= 0; i
< ARRAY_SIZE(netdev_types
); i
++) {
2404 if (netdev_types
[i
].id
== dev_type
)
2405 return netdev_types
[i
].name
;
2408 /* the last key is used by default */
2409 i
= ARRAY_SIZE(netdev_types
) - 1;
2411 return netdev_types
[i
].name
;
2415 system_add_devtype(struct blob_buf
*b
, const char *ifname
)
2420 if (!system_get_dev_sysfs("uevent", ifname
, buf
, sizeof(buf
))) {
2421 const char *info
= "DEVTYPE=";
2422 char *context
= NULL
;
2423 const char *line
= strtok_r(buf
, "\r\n", &context
);
2425 while (line
!= NULL
) {
2426 char *index
= strstr(line
, info
);
2428 if (index
!= NULL
) {
2429 blobmsg_add_string(b
, "devtype", index
+ strlen(info
));
2434 line
= strtok_r(NULL
, "\r\n", &context
);
2439 unsigned short number
= 0;
2440 const char *name
= NULL
;
2442 if (!system_get_dev_sysfs("type", ifname
, buf
, sizeof(buf
))) {
2443 number
= strtoul(buf
, NULL
, 0);
2444 name
= system_netdevtype_name(number
);
2445 blobmsg_add_string(b
, "devtype", name
);
2451 system_if_dump_info(struct device
*dev
, struct blob_buf
*b
)
2453 struct ethtool_cmd ecmd
;
2458 memset(&ecmd
, 0, sizeof(ecmd
));
2459 memset(&ifr
, 0, sizeof(ifr
));
2460 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2461 ifr
.ifr_data
= (caddr_t
) &ecmd
;
2462 ecmd
.cmd
= ETHTOOL_GSET
;
2464 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) == 0) {
2465 c
= blobmsg_open_array(b
, "link-advertising");
2466 system_add_link_modes(b
, ecmd
.advertising
);
2467 blobmsg_close_array(b
, c
);
2469 c
= blobmsg_open_array(b
, "link-partner-advertising");
2470 system_add_link_modes(b
, ecmd
.lp_advertising
);
2471 blobmsg_close_array(b
, c
);
2473 c
= blobmsg_open_array(b
, "link-supported");
2474 system_add_link_modes(b
, ecmd
.supported
);
2475 blobmsg_close_array(b
, c
);
2477 s
= blobmsg_alloc_string_buffer(b
, "speed", 8);
2478 snprintf(s
, 8, "%d%c", ethtool_cmd_speed(&ecmd
),
2479 ecmd
.duplex
== DUPLEX_HALF
? 'H' : 'F');
2480 blobmsg_add_string_buffer(b
);
2482 blobmsg_add_u8(b
, "autoneg", !!ecmd
.autoneg
);
2485 system_add_devtype(b
, dev
->ifname
);
2491 system_if_dump_stats(struct device
*dev
, struct blob_buf
*b
)
2493 const char *const counters
[] = {
2494 "collisions", "rx_frame_errors", "tx_compressed",
2495 "multicast", "rx_length_errors", "tx_dropped",
2496 "rx_bytes", "rx_missed_errors", "tx_errors",
2497 "rx_compressed", "rx_over_errors", "tx_fifo_errors",
2498 "rx_crc_errors", "rx_packets", "tx_heartbeat_errors",
2499 "rx_dropped", "tx_aborted_errors", "tx_packets",
2500 "rx_errors", "tx_bytes", "tx_window_errors",
2501 "rx_fifo_errors", "tx_carrier_errors",
2507 stats_dir
= open(dev_sysfs_path(dev
->ifname
, "statistics"), O_DIRECTORY
);
2511 for (i
= 0; i
< ARRAY_SIZE(counters
); i
++)
2512 if (read_uint64_file(stats_dir
, counters
[i
], &val
))
2513 blobmsg_add_u64(b
, counters
[i
], val
);
2519 static int system_addr(struct device
*dev
, struct device_addr
*addr
, int cmd
)
2521 bool v4
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
);
2522 int alen
= v4
? 4 : 16;
2523 unsigned int flags
= 0;
2524 struct ifaddrmsg ifa
= {
2525 .ifa_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2526 .ifa_prefixlen
= addr
->mask
,
2527 .ifa_index
= dev
->ifindex
,
2531 if (cmd
== RTM_NEWADDR
)
2532 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
2534 msg
= nlmsg_alloc_simple(cmd
, flags
);
2538 nlmsg_append(msg
, &ifa
, sizeof(ifa
), 0);
2539 nla_put(msg
, IFA_LOCAL
, alen
, &addr
->addr
);
2541 if (addr
->broadcast
)
2542 nla_put_u32(msg
, IFA_BROADCAST
, addr
->broadcast
);
2543 if (addr
->point_to_point
)
2544 nla_put_u32(msg
, IFA_ADDRESS
, addr
->point_to_point
);
2546 time_t now
= system_get_rtime();
2547 struct ifa_cacheinfo cinfo
= {0xffffffffU
, 0xffffffffU
, 0, 0};
2549 if (addr
->preferred_until
) {
2550 int64_t preferred
= addr
->preferred_until
- now
;
2553 else if (preferred
> UINT32_MAX
)
2554 preferred
= UINT32_MAX
;
2556 cinfo
.ifa_prefered
= preferred
;
2559 if (addr
->valid_until
) {
2560 int64_t valid
= addr
->valid_until
- now
;
2565 else if (valid
> UINT32_MAX
)
2568 cinfo
.ifa_valid
= valid
;
2571 nla_put(msg
, IFA_CACHEINFO
, sizeof(cinfo
), &cinfo
);
2573 if (cmd
== RTM_NEWADDR
&& (addr
->flags
& DEVADDR_OFFLINK
))
2574 nla_put_u32(msg
, IFA_FLAGS
, IFA_F_NOPREFIXROUTE
);
2577 return system_rtnl_call(msg
);
2580 int system_add_address(struct device
*dev
, struct device_addr
*addr
)
2582 return system_addr(dev
, addr
, RTM_NEWADDR
);
2585 int system_del_address(struct device
*dev
, struct device_addr
*addr
)
2587 return system_addr(dev
, addr
, RTM_DELADDR
);
2590 static int system_neigh(struct device
*dev
, struct device_neighbor
*neighbor
, int cmd
)
2592 int alen
= ((neighbor
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
2593 unsigned int flags
= 0;
2594 struct ndmsg ndm
= {
2595 .ndm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2596 .ndm_ifindex
= dev
->ifindex
,
2597 .ndm_state
= NUD_PERMANENT
,
2598 .ndm_flags
= (neighbor
->proxy
? NTF_PROXY
: 0) | (neighbor
->router
? NTF_ROUTER
: 0),
2602 if (cmd
== RTM_NEWNEIGH
)
2603 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
2605 msg
= nlmsg_alloc_simple(cmd
, flags
);
2610 nlmsg_append(msg
, &ndm
, sizeof(ndm
), 0);
2612 nla_put(msg
, NDA_DST
, alen
, &neighbor
->addr
);
2613 if (neighbor
->flags
& DEVNEIGH_MAC
)
2614 nla_put(msg
, NDA_LLADDR
, sizeof(neighbor
->macaddr
), &neighbor
->macaddr
);
2617 return system_rtnl_call(msg
);
2620 int system_add_neighbor(struct device
*dev
, struct device_neighbor
*neighbor
)
2622 return system_neigh(dev
, neighbor
, RTM_NEWNEIGH
);
2625 int system_del_neighbor(struct device
*dev
, struct device_neighbor
*neighbor
)
2627 return system_neigh(dev
, neighbor
, RTM_DELNEIGH
);
2630 static int system_rt(struct device
*dev
, struct device_route
*route
, int cmd
)
2632 int alen
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
2634 unsigned int flags
= 0;
2637 have_gw
= !!route
->nexthop
.in
.s_addr
;
2639 have_gw
= route
->nexthop
.in6
.s6_addr32
[0] ||
2640 route
->nexthop
.in6
.s6_addr32
[1] ||
2641 route
->nexthop
.in6
.s6_addr32
[2] ||
2642 route
->nexthop
.in6
.s6_addr32
[3];
2644 unsigned int table
= (route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))
2645 ? route
->table
: RT_TABLE_MAIN
;
2647 struct rtmsg rtm
= {
2648 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2649 .rtm_dst_len
= route
->mask
,
2650 .rtm_src_len
= route
->sourcemask
,
2651 .rtm_table
= (table
< 256) ? table
: RT_TABLE_UNSPEC
,
2652 .rtm_protocol
= (route
->flags
& DEVROUTE_PROTO
) ? route
->proto
: RTPROT_STATIC
,
2653 .rtm_scope
= RT_SCOPE_NOWHERE
,
2654 .rtm_type
= (cmd
== RTM_DELROUTE
) ? 0: RTN_UNICAST
,
2655 .rtm_flags
= (route
->flags
& DEVROUTE_ONLINK
) ? RTNH_F_ONLINK
: 0,
2659 if (cmd
== RTM_NEWROUTE
) {
2660 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
2662 if (!dev
) { /* Add null-route */
2663 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
2664 rtm
.rtm_type
= RTN_UNREACHABLE
;
2667 rtm
.rtm_scope
= (have_gw
) ? RT_SCOPE_UNIVERSE
: RT_SCOPE_LINK
;
2670 if (route
->flags
& DEVROUTE_TYPE
) {
2671 rtm
.rtm_type
= route
->type
;
2672 if (!(route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))) {
2673 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_BROADCAST
||
2674 rtm
.rtm_type
== RTN_NAT
|| rtm
.rtm_type
== RTN_ANYCAST
)
2675 rtm
.rtm_table
= RT_TABLE_LOCAL
;
2678 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_NAT
) {
2679 rtm
.rtm_scope
= RT_SCOPE_HOST
;
2680 } else if (rtm
.rtm_type
== RTN_BROADCAST
|| rtm
.rtm_type
== RTN_MULTICAST
||
2681 rtm
.rtm_type
== RTN_ANYCAST
) {
2682 rtm
.rtm_scope
= RT_SCOPE_LINK
;
2683 } else if (rtm
.rtm_type
== RTN_BLACKHOLE
|| rtm
.rtm_type
== RTN_UNREACHABLE
||
2684 rtm
.rtm_type
== RTN_PROHIBIT
|| rtm
.rtm_type
== RTN_FAILED_POLICY
||
2685 rtm
.rtm_type
== RTN_THROW
) {
2686 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
2691 msg
= nlmsg_alloc_simple(cmd
, flags
);
2695 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
2698 nla_put(msg
, RTA_DST
, alen
, &route
->addr
);
2700 if (route
->sourcemask
) {
2701 if (rtm
.rtm_family
== AF_INET
)
2702 nla_put(msg
, RTA_PREFSRC
, alen
, &route
->source
);
2704 nla_put(msg
, RTA_SRC
, alen
, &route
->source
);
2707 if (route
->metric
> 0)
2708 nla_put_u32(msg
, RTA_PRIORITY
, route
->metric
);
2711 nla_put(msg
, RTA_GATEWAY
, alen
, &route
->nexthop
);
2714 nla_put_u32(msg
, RTA_OIF
, dev
->ifindex
);
2717 nla_put_u32(msg
, RTA_TABLE
, table
);
2719 if (route
->flags
& DEVROUTE_MTU
) {
2720 struct nlattr
*metrics
;
2722 if (!(metrics
= nla_nest_start(msg
, RTA_METRICS
)))
2723 goto nla_put_failure
;
2725 nla_put_u32(msg
, RTAX_MTU
, route
->mtu
);
2727 nla_nest_end(msg
, metrics
);
2730 return system_rtnl_call(msg
);
2737 int system_add_route(struct device
*dev
, struct device_route
*route
)
2739 return system_rt(dev
, route
, RTM_NEWROUTE
);
2742 int system_del_route(struct device
*dev
, struct device_route
*route
)
2744 return system_rt(dev
, route
, RTM_DELROUTE
);
2747 int system_flush_routes(void)
2749 const char *names
[] = { "ipv4", "ipv6" };
2752 for (i
= 0; i
< ARRAY_SIZE(names
); i
++) {
2753 snprintf(dev_buf
, sizeof(dev_buf
), "%s/sys/net/%s/route/flush", proc_path
, names
[i
]);
2754 fd
= open(dev_buf
, O_WRONLY
);
2758 if (write(fd
, "-1", 2)) {}
2764 bool system_resolve_rt_type(const char *type
, unsigned int *id
)
2766 return system_rtn_aton(type
, id
);
2769 bool system_resolve_rt_proto(const char *type
, unsigned int *id
)
2773 unsigned int n
, proto
= 256;
2774 n
= strtoul(type
, &e
, 0);
2775 if (!*e
&& e
!= type
)
2777 else if (!strcmp(type
, "unspec"))
2778 proto
= RTPROT_UNSPEC
;
2779 else if (!strcmp(type
, "kernel"))
2780 proto
= RTPROT_KERNEL
;
2781 else if (!strcmp(type
, "boot"))
2782 proto
= RTPROT_BOOT
;
2783 else if (!strcmp(type
, "static"))
2784 proto
= RTPROT_STATIC
;
2785 else if ((f
= fopen("/etc/iproute2/rt_protos", "r")) != NULL
) {
2786 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
) {
2787 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2790 n
= strtoul(e
, NULL
, 10);
2791 e
= strtok(NULL
, " \t\n");
2793 if (e
&& !strcmp(e
, type
)) {
2808 bool system_resolve_rt_table(const char *name
, unsigned int *id
)
2812 unsigned int n
, table
= RT_TABLE_UNSPEC
;
2814 /* first try to parse table as number */
2815 if ((n
= strtoul(name
, &e
, 0)) > 0 && !*e
)
2818 /* handle well known aliases */
2819 else if (!strcmp(name
, "default"))
2820 table
= RT_TABLE_DEFAULT
;
2821 else if (!strcmp(name
, "main"))
2822 table
= RT_TABLE_MAIN
;
2823 else if (!strcmp(name
, "local"))
2824 table
= RT_TABLE_LOCAL
;
2826 /* try to look up name in /etc/iproute2/rt_tables */
2827 else if ((f
= fopen("/etc/iproute2/rt_tables", "r")) != NULL
)
2829 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
)
2831 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2834 n
= strtoul(e
, NULL
, 10);
2835 e
= strtok(NULL
, " \t\n");
2837 if (e
&& !strcmp(e
, name
))
2847 if (table
== RT_TABLE_UNSPEC
)
2854 bool system_is_default_rt_table(unsigned int id
)
2856 return (id
== RT_TABLE_MAIN
);
2859 bool system_resolve_rpfilter(const char *filter
, unsigned int *id
)
2864 if (!strcmp(filter
, "strict"))
2866 else if (!strcmp(filter
, "loose"))
2869 n
= strtoul(filter
, &e
, 0);
2870 if (*e
|| e
== filter
|| n
> 2)
2878 static int system_iprule(struct iprule
*rule
, int cmd
)
2880 int alen
= ((rule
->flags
& IPRULE_FAMILY
) == IPRULE_INET4
) ? 4 : 16;
2883 struct rtmsg rtm
= {
2884 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2885 .rtm_protocol
= RTPROT_STATIC
,
2886 .rtm_scope
= RT_SCOPE_UNIVERSE
,
2887 .rtm_table
= RT_TABLE_UNSPEC
,
2888 .rtm_type
= RTN_UNSPEC
,
2892 if (cmd
== RTM_NEWRULE
)
2893 rtm
.rtm_type
= RTN_UNICAST
;
2896 rtm
.rtm_flags
|= FIB_RULE_INVERT
;
2898 if (rule
->flags
& IPRULE_SRC
)
2899 rtm
.rtm_src_len
= rule
->src_mask
;
2901 if (rule
->flags
& IPRULE_DEST
)
2902 rtm
.rtm_dst_len
= rule
->dest_mask
;
2904 if (rule
->flags
& IPRULE_TOS
)
2905 rtm
.rtm_tos
= rule
->tos
;
2907 if (rule
->flags
& IPRULE_LOOKUP
) {
2908 if (rule
->lookup
< 256)
2909 rtm
.rtm_table
= rule
->lookup
;
2912 if (rule
->flags
& IPRULE_ACTION
)
2913 rtm
.rtm_type
= rule
->action
;
2914 else if (rule
->flags
& IPRULE_GOTO
)
2915 rtm
.rtm_type
= FR_ACT_GOTO
;
2916 else if (!(rule
->flags
& (IPRULE_LOOKUP
| IPRULE_ACTION
| IPRULE_GOTO
)))
2917 rtm
.rtm_type
= FR_ACT_NOP
;
2919 msg
= nlmsg_alloc_simple(cmd
, NLM_F_REQUEST
);
2924 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
2926 if (rule
->flags
& IPRULE_IN
)
2927 nla_put(msg
, FRA_IFNAME
, strlen(rule
->in_dev
) + 1, rule
->in_dev
);
2929 if (rule
->flags
& IPRULE_OUT
)
2930 nla_put(msg
, FRA_OIFNAME
, strlen(rule
->out_dev
) + 1, rule
->out_dev
);
2932 if (rule
->flags
& IPRULE_SRC
)
2933 nla_put(msg
, FRA_SRC
, alen
, &rule
->src_addr
);
2935 if (rule
->flags
& IPRULE_DEST
)
2936 nla_put(msg
, FRA_DST
, alen
, &rule
->dest_addr
);
2938 if (rule
->flags
& IPRULE_PRIORITY
)
2939 nla_put_u32(msg
, FRA_PRIORITY
, rule
->priority
);
2940 else if (cmd
== RTM_NEWRULE
)
2941 nla_put_u32(msg
, FRA_PRIORITY
, rule
->order
);
2943 if (rule
->flags
& IPRULE_FWMARK
)
2944 nla_put_u32(msg
, FRA_FWMARK
, rule
->fwmark
);
2946 if (rule
->flags
& IPRULE_FWMASK
)
2947 nla_put_u32(msg
, FRA_FWMASK
, rule
->fwmask
);
2949 if (rule
->flags
& IPRULE_LOOKUP
) {
2950 if (rule
->lookup
>= 256)
2951 nla_put_u32(msg
, FRA_TABLE
, rule
->lookup
);
2954 if (rule
->flags
& IPRULE_SUP_PREFIXLEN
)
2955 nla_put_u32(msg
, FRA_SUPPRESS_PREFIXLEN
, rule
->sup_prefixlen
);
2957 if (rule
->flags
& IPRULE_UIDRANGE
) {
2958 struct fib_rule_uid_range uidrange
= {
2959 .start
= rule
->uidrange_start
,
2960 .end
= rule
->uidrange_end
2963 nla_put(msg
, FRA_UID_RANGE
, sizeof(uidrange
), &uidrange
);
2966 if (rule
->flags
& IPRULE_GOTO
)
2967 nla_put_u32(msg
, FRA_GOTO
, rule
->gotoid
);
2969 return system_rtnl_call(msg
);
2972 int system_add_iprule(struct iprule
*rule
)
2974 return system_iprule(rule
, RTM_NEWRULE
);
2977 int system_del_iprule(struct iprule
*rule
)
2979 return system_iprule(rule
, RTM_DELRULE
);
2982 int system_flush_iprules(void)
2987 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET
);
2988 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET6
);
2990 memset(&rule
, 0, sizeof(rule
));
2993 rule
.flags
= IPRULE_INET4
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
2996 rule
.lookup
= RT_TABLE_LOCAL
;
2997 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
2999 rule
.priority
= 32766;
3000 rule
.lookup
= RT_TABLE_MAIN
;
3001 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3003 rule
.priority
= 32767;
3004 rule
.lookup
= RT_TABLE_DEFAULT
;
3005 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3008 rule
.flags
= IPRULE_INET6
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
3011 rule
.lookup
= RT_TABLE_LOCAL
;
3012 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3014 rule
.priority
= 32766;
3015 rule
.lookup
= RT_TABLE_MAIN
;
3016 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3021 bool system_resolve_iprule_action(const char *action
, unsigned int *id
)
3023 return system_rtn_aton(action
, id
);
3026 time_t system_get_rtime(void)
3031 if (clock_gettime(CLOCK_MONOTONIC
, &ts
) == 0)
3034 if (gettimeofday(&tv
, NULL
) == 0)
3041 #define IP_DF 0x4000
3044 static int tunnel_ioctl(const char *name
, int cmd
, void *p
)
3048 memset(&ifr
, 0, sizeof(ifr
));
3049 strncpy(ifr
.ifr_name
, name
, sizeof(ifr
.ifr_name
) - 1);
3050 ifr
.ifr_ifru
.ifru_data
= p
;
3051 return ioctl(sock_ioctl
, cmd
, &ifr
);
3054 #ifdef IFLA_IPTUN_MAX
3055 static int system_add_ip6_tunnel(const char *name
, const unsigned int link
,
3056 struct blob_attr
**tb
)
3058 struct nl_msg
*nlm
= nlmsg_alloc_simple(RTM_NEWLINK
,
3059 NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3060 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
};
3061 struct blob_attr
*cur
;
3062 int ret
= 0, ttl
= 0;
3067 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3068 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3071 nla_put_u32(nlm
, IFLA_LINK
, link
);
3073 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3079 nla_put_string(nlm
, IFLA_INFO_KIND
, "ip6tnl");
3080 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3087 nla_put_u32(nlm
, IFLA_IPTUN_LINK
, link
);
3089 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3090 ttl
= blobmsg_get_u32(cur
);
3092 nla_put_u8(nlm
, IFLA_IPTUN_PROTO
, IPPROTO_IPIP
);
3093 nla_put_u8(nlm
, IFLA_IPTUN_TTL
, (ttl
) ? ttl
: 64);
3095 struct in6_addr in6buf
;
3096 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3097 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3101 nla_put(nlm
, IFLA_IPTUN_LOCAL
, sizeof(in6buf
), &in6buf
);
3104 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3105 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3109 nla_put(nlm
, IFLA_IPTUN_REMOTE
, sizeof(in6buf
), &in6buf
);
3112 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3113 struct blob_attr
*tb_data
[__IPIP6_DATA_ATTR_MAX
];
3114 uint32_t tun_flags
= IP6_TNL_F_IGN_ENCAP_LIMIT
;
3116 blobmsg_parse(ipip6_data_attr_list
.params
, __IPIP6_DATA_ATTR_MAX
, tb_data
,
3117 blobmsg_data(cur
), blobmsg_len(cur
));
3119 if ((cur
= tb_data
[IPIP6_DATA_ENCAPLIMIT
])) {
3120 char *str
= blobmsg_get_string(cur
);
3122 if (strcmp(str
, "ignore")) {
3124 unsigned encap_limit
= strtoul(str
, &e
, 0);
3126 if (e
== str
|| *e
|| encap_limit
> 255) {
3131 nla_put_u8(nlm
, IFLA_IPTUN_ENCAP_LIMIT
, encap_limit
);
3132 tun_flags
&= ~IP6_TNL_F_IGN_ENCAP_LIMIT
;
3136 #ifdef IFLA_IPTUN_FMR_MAX
3137 if ((cur
= tb_data
[IPIP6_DATA_FMRS
])) {
3138 struct blob_attr
*rcur
;
3139 unsigned rrem
, fmrcnt
= 0;
3140 struct nlattr
*fmrs
= nla_nest_start(nlm
, IFLA_IPTUN_FMRS
);
3147 blobmsg_for_each_attr(rcur
, cur
, rrem
) {
3148 struct blob_attr
*tb_fmr
[__FMR_DATA_ATTR_MAX
], *tb_cur
;
3149 struct in6_addr ip6prefix
;
3150 struct in_addr ip4prefix
;
3151 unsigned ip4len
, ip6len
, ealen
, offset
;
3153 blobmsg_parse(fmr_data_attr_list
.params
, __FMR_DATA_ATTR_MAX
, tb_fmr
,
3154 blobmsg_data(rcur
), blobmsg_len(rcur
));
3156 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX6
]) ||
3157 !parse_ip_and_netmask(AF_INET6
,
3158 blobmsg_data(tb_cur
), &ip6prefix
,
3164 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX4
]) ||
3165 !parse_ip_and_netmask(AF_INET
,
3166 blobmsg_data(tb_cur
), &ip4prefix
,
3172 if (!(tb_cur
= tb_fmr
[FMR_DATA_EALEN
])) {
3176 ealen
= blobmsg_get_u32(tb_cur
);
3178 if (!(tb_cur
= tb_fmr
[FMR_DATA_OFFSET
])) {
3182 offset
= blobmsg_get_u32(tb_cur
);
3184 struct nlattr
*rule
= nla_nest_start(nlm
, ++fmrcnt
);
3190 nla_put(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX
, sizeof(ip6prefix
), &ip6prefix
);
3191 nla_put(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX
, sizeof(ip4prefix
), &ip4prefix
);
3192 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX_LEN
, ip6len
);
3193 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX_LEN
, ip4len
);
3194 nla_put_u8(nlm
, IFLA_IPTUN_FMR_EA_LEN
, ealen
);
3195 nla_put_u8(nlm
, IFLA_IPTUN_FMR_OFFSET
, offset
);
3197 nla_nest_end(nlm
, rule
);
3200 nla_nest_end(nlm
, fmrs
);
3204 nla_put_u32(nlm
, IFLA_IPTUN_FLAGS
, tun_flags
);
3207 nla_nest_end(nlm
, infodata
);
3208 nla_nest_end(nlm
, linkinfo
);
3210 return system_rtnl_call(nlm
);
3218 #ifdef IFLA_IPTUN_MAX
3219 #define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
3220 static int system_add_gre_tunnel(const char *name
, const char *kind
,
3221 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3224 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3225 struct blob_attr
*cur
;
3226 uint32_t ikey
= 0, okey
= 0, flowinfo
= 0, flags6
= IP6_TNL_F_IGN_ENCAP_LIMIT
;
3227 uint16_t iflags
= 0, oflags
= 0;
3229 int ret
= 0, ttl
= 0;
3230 unsigned encap_limit
= 0;
3232 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3236 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3237 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3239 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3245 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
3246 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3253 nla_put_u32(nlm
, IFLA_GRE_LINK
, link
);
3255 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3256 ttl
= blobmsg_get_u32(cur
);
3258 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3259 char *str
= blobmsg_get_string(cur
);
3260 if (strcmp(str
, "inherit")) {
3263 if (!system_tos_aton(str
, &uval
)) {
3269 flowinfo
|= htonl(uval
<< 20) & IP6_FLOWINFO_TCLASS
;
3274 flags6
|= IP6_TNL_F_USE_ORIG_TCLASS
;
3280 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3281 struct blob_attr
*tb_data
[__GRE_DATA_ATTR_MAX
];
3283 blobmsg_parse(gre_data_attr_list
.params
, __GRE_DATA_ATTR_MAX
, tb_data
,
3284 blobmsg_data(cur
), blobmsg_len(cur
));
3286 if ((cur
= tb_data
[GRE_DATA_IKEY
])) {
3287 if ((ikey
= blobmsg_get_u32(cur
)))
3291 if ((cur
= tb_data
[GRE_DATA_OKEY
])) {
3292 if ((okey
= blobmsg_get_u32(cur
)))
3296 if ((cur
= tb_data
[GRE_DATA_ICSUM
])) {
3297 if (blobmsg_get_bool(cur
))
3301 if ((cur
= tb_data
[GRE_DATA_OCSUM
])) {
3302 if (blobmsg_get_bool(cur
))
3306 if ((cur
= tb_data
[GRE_DATA_ISEQNO
])) {
3307 if (blobmsg_get_bool(cur
))
3311 if ((cur
= tb_data
[GRE_DATA_OSEQNO
])) {
3312 if (blobmsg_get_bool(cur
))
3316 if ((cur
= tb_data
[GRE_DATA_ENCAPLIMIT
])) {
3317 char *str
= blobmsg_get_string(cur
);
3319 if (strcmp(str
, "ignore")) {
3322 encap_limit
= strtoul(str
, &e
, 0);
3324 if (e
== str
|| *e
|| encap_limit
> 255) {
3329 flags6
&= ~IP6_TNL_F_IGN_ENCAP_LIMIT
;
3335 struct in6_addr in6buf
;
3336 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3337 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3341 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(in6buf
), &in6buf
);
3344 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3345 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3349 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(in6buf
), &in6buf
);
3352 if (!(flags6
& IP6_TNL_F_IGN_ENCAP_LIMIT
))
3353 nla_put_u8(nlm
, IFLA_GRE_ENCAP_LIMIT
, encap_limit
);
3356 nla_put_u32(nlm
, IFLA_GRE_FLOWINFO
, flowinfo
);
3359 nla_put_u32(nlm
, IFLA_GRE_FLAGS
, flags6
);
3364 struct in_addr inbuf
;
3367 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3368 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3372 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(inbuf
), &inbuf
);
3375 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3376 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3380 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(inbuf
), &inbuf
);
3382 if (IN_MULTICAST(ntohl(inbuf
.s_addr
))) {
3384 okey
= inbuf
.s_addr
;
3389 ikey
= inbuf
.s_addr
;
3395 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
3396 set_df
= blobmsg_get_bool(cur
);
3399 /* ttl != 0 and nopmtudisc are incompatible */
3407 nla_put_u8(nlm
, IFLA_GRE_PMTUDISC
, set_df
? 1 : 0);
3409 nla_put_u8(nlm
, IFLA_GRE_TOS
, tos
);
3413 nla_put_u8(nlm
, IFLA_GRE_TTL
, ttl
);
3416 nla_put_u16(nlm
, IFLA_GRE_OFLAGS
, oflags
);
3419 nla_put_u16(nlm
, IFLA_GRE_IFLAGS
, iflags
);
3422 nla_put_u32(nlm
, IFLA_GRE_OKEY
, htonl(okey
));
3425 nla_put_u32(nlm
, IFLA_GRE_IKEY
, htonl(ikey
));
3427 nla_nest_end(nlm
, infodata
);
3428 nla_nest_end(nlm
, linkinfo
);
3430 return system_rtnl_call(nlm
);
3439 static int system_add_vti_tunnel(const char *name
, const char *kind
,
3440 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3443 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3444 struct blob_attr
*cur
;
3447 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3451 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3452 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3454 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3460 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
3461 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3468 nla_put_u32(nlm
, IFLA_VTI_LINK
, link
);
3471 struct in6_addr in6buf
;
3472 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3473 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3477 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(in6buf
), &in6buf
);
3480 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3481 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3485 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(in6buf
), &in6buf
);
3489 struct in_addr inbuf
;
3491 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3492 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3496 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(inbuf
), &inbuf
);
3499 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3500 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3504 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(inbuf
), &inbuf
);
3509 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3510 struct blob_attr
*tb_data
[__VTI_DATA_ATTR_MAX
];
3511 uint32_t ikey
= 0, okey
= 0;
3513 blobmsg_parse(vti_data_attr_list
.params
, __VTI_DATA_ATTR_MAX
, tb_data
,
3514 blobmsg_data(cur
), blobmsg_len(cur
));
3516 if ((cur
= tb_data
[VTI_DATA_IKEY
])) {
3517 if ((ikey
= blobmsg_get_u32(cur
)))
3518 nla_put_u32(nlm
, IFLA_VTI_IKEY
, htonl(ikey
));
3521 if ((cur
= tb_data
[VTI_DATA_OKEY
])) {
3522 if ((okey
= blobmsg_get_u32(cur
)))
3523 nla_put_u32(nlm
, IFLA_VTI_OKEY
, htonl(okey
));
3527 nla_nest_end(nlm
, infodata
);
3528 nla_nest_end(nlm
, linkinfo
);
3530 return system_rtnl_call(nlm
);
3538 #ifdef IFLA_XFRM_MAX
3539 static int system_add_xfrm_tunnel(const char *name
, const char *kind
,
3540 const unsigned int link
, struct blob_attr
**tb
)
3543 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3544 struct blob_attr
*cur
;
3547 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3551 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3552 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3554 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3560 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
3561 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3568 nla_put_u32(nlm
, IFLA_XFRM_LINK
, link
);
3570 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3571 struct blob_attr
*tb_data
[__XFRM_DATA_ATTR_MAX
];
3574 blobmsg_parse(xfrm_data_attr_list
.params
, __XFRM_DATA_ATTR_MAX
, tb_data
,
3575 blobmsg_data(cur
), blobmsg_len(cur
));
3577 if ((cur
= tb_data
[XFRM_DATA_IF_ID
])) {
3578 if ((if_id
= blobmsg_get_u32(cur
)))
3579 nla_put_u32(nlm
, IFLA_XFRM_IF_ID
, if_id
);
3584 nla_nest_end(nlm
, infodata
);
3585 nla_nest_end(nlm
, linkinfo
);
3587 return system_rtnl_call(nlm
);
3595 #ifdef IFLA_VXLAN_MAX
3596 static void system_vxlan_map_bool_attr(struct nl_msg
*msg
, struct blob_attr
**tb_data
, int attrtype
, int vxlandatatype
, bool invert
) {
3597 struct blob_attr
*cur
;
3598 if ((cur
= tb_data
[vxlandatatype
])) {
3599 bool val
= blobmsg_get_bool(cur
);
3603 if ((attrtype
== IFLA_VXLAN_GBP
) && val
)
3604 nla_put_flag(msg
, attrtype
);
3606 nla_put_u8(msg
, attrtype
, val
);
3611 static int system_add_vxlan(const char *name
, const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3613 struct blob_attr
*tb_data
[__VXLAN_DATA_ATTR_MAX
];
3615 struct nlattr
*linkinfo
, *data
;
3616 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
3617 struct blob_attr
*cur
;
3620 if ((cur
= tb
[TUNNEL_ATTR_DATA
]))
3621 blobmsg_parse(vxlan_data_attr_list
.params
, __VXLAN_DATA_ATTR_MAX
, tb_data
,
3622 blobmsg_data(cur
), blobmsg_len(cur
));
3626 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
3631 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
3633 nla_put_string(msg
, IFLA_IFNAME
, name
);
3635 if ((cur
= tb_data
[VXLAN_DATA_ATTR_MACADDR
])) {
3636 struct ether_addr
*ea
= ether_aton(blobmsg_get_string(cur
));
3642 nla_put(msg
, IFLA_ADDRESS
, ETH_ALEN
, ea
);
3645 if ((cur
= tb
[TUNNEL_ATTR_MTU
])) {
3646 uint32_t mtu
= blobmsg_get_u32(cur
);
3647 nla_put_u32(msg
, IFLA_MTU
, mtu
);
3650 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
))) {
3655 nla_put_string(msg
, IFLA_INFO_KIND
, "vxlan");
3657 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
))) {
3663 nla_put_u32(msg
, IFLA_VXLAN_LINK
, link
);
3665 if ((cur
= tb_data
[VXLAN_DATA_ATTR_ID
])) {
3666 uint32_t id
= blobmsg_get_u32(cur
);
3667 if (id
>= (1u << 24) - 1) {
3672 nla_put_u32(msg
, IFLA_VXLAN_ID
, id
);
3676 struct in6_addr in6buf
;
3677 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3678 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3682 nla_put(msg
, IFLA_VXLAN_LOCAL6
, sizeof(in6buf
), &in6buf
);
3685 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3686 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3690 nla_put(msg
, IFLA_VXLAN_GROUP6
, sizeof(in6buf
), &in6buf
);
3693 struct in_addr inbuf
;
3695 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3696 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3700 nla_put(msg
, IFLA_VXLAN_LOCAL
, sizeof(inbuf
), &inbuf
);
3703 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3704 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3708 nla_put(msg
, IFLA_VXLAN_GROUP
, sizeof(inbuf
), &inbuf
);
3712 uint32_t port
= 4789;
3713 if ((cur
= tb_data
[VXLAN_DATA_ATTR_PORT
])) {
3714 port
= blobmsg_get_u32(cur
);
3715 if (port
< 1 || port
> 65535) {
3720 nla_put_u16(msg
, IFLA_VXLAN_PORT
, htons(port
));
3722 if ((cur
= tb_data
[VXLAN_DATA_ATTR_SRCPORTMIN
])) {
3723 struct ifla_vxlan_port_range srcports
= {0,0};
3725 uint32_t low
= blobmsg_get_u32(cur
);
3726 if (low
< 1 || low
> 65535 - 1) {
3731 srcports
.low
= htons((uint16_t) low
);
3732 srcports
.high
= htons((uint16_t) (low
+1));
3734 if ((cur
= tb_data
[VXLAN_DATA_ATTR_SRCPORTMAX
])) {
3735 uint32_t high
= blobmsg_get_u32(cur
);
3736 if (high
< 1 || high
> 65535) {
3742 srcports
.high
= htons((uint16_t) high
);
3745 nla_put(msg
, IFLA_VXLAN_PORT_RANGE
, sizeof(srcports
), &srcports
);
3748 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_CSUM
, VXLAN_DATA_ATTR_TXCSUM
, false);
3749 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_ZERO_CSUM6_RX
, VXLAN_DATA_ATTR_RXCSUM
, true);
3750 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_ZERO_CSUM6_TX
, VXLAN_DATA_ATTR_TXCSUM
, true);
3751 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_LEARNING
, VXLAN_DATA_ATTR_LEARNING
, false);
3752 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_RSC
, VXLAN_DATA_ATTR_RSC
, false);
3753 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_PROXY
, VXLAN_DATA_ATTR_PROXY
, false);
3754 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_L2MISS
, VXLAN_DATA_ATTR_L2MISS
, false);
3755 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_L3MISS
, VXLAN_DATA_ATTR_L3MISS
, false);
3756 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_GBP
, VXLAN_DATA_ATTR_GBP
, false);
3758 if ((cur
= tb_data
[VXLAN_DATA_ATTR_AGEING
])) {
3759 uint32_t ageing
= blobmsg_get_u32(cur
);
3760 nla_put_u32(msg
, IFLA_VXLAN_AGEING
, ageing
);
3763 if ((cur
= tb_data
[VXLAN_DATA_ATTR_LIMIT
])) {
3764 uint32_t maxaddress
= blobmsg_get_u32(cur
);
3765 nla_put_u32(msg
, IFLA_VXLAN_LIMIT
, maxaddress
);
3768 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3769 char *str
= blobmsg_get_string(cur
);
3772 if (strcmp(str
, "inherit")) {
3773 if (!system_tos_aton(str
, &tos
)) {
3779 nla_put_u8(msg
, IFLA_VXLAN_TOS
, tos
);
3782 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
3783 uint32_t ttl
= blobmsg_get_u32(cur
);
3784 if (ttl
< 1 || ttl
> 255) {
3789 nla_put_u8(msg
, IFLA_VXLAN_TTL
, ttl
);
3792 nla_nest_end(msg
, data
);
3793 nla_nest_end(msg
, linkinfo
);
3795 ret
= system_rtnl_call(msg
);
3797 D(SYSTEM
, "Error adding vxlan '%s': %d\n", name
, ret
);
3807 static int system_add_sit_tunnel(const char *name
, const unsigned int link
, struct blob_attr
**tb
)
3809 struct blob_attr
*cur
;
3812 if (system_add_proto_tunnel(name
, IPPROTO_IPV6
, link
, tb
) < 0)
3816 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3817 struct blob_attr
*tb_data
[__SIXRD_DATA_ATTR_MAX
];
3819 struct ip_tunnel_6rd p6
;
3821 blobmsg_parse(sixrd_data_attr_list
.params
, __SIXRD_DATA_ATTR_MAX
, tb_data
,
3822 blobmsg_data(cur
), blobmsg_len(cur
));
3824 memset(&p6
, 0, sizeof(p6
));
3826 if ((cur
= tb_data
[SIXRD_DATA_PREFIX
])) {
3827 if (!parse_ip_and_netmask(AF_INET6
, blobmsg_data(cur
),
3828 &p6
.prefix
, &mask
) || mask
> 128) {
3833 p6
.prefixlen
= mask
;
3836 if ((cur
= tb_data
[SIXRD_DATA_RELAY_PREFIX
])) {
3837 if (!parse_ip_and_netmask(AF_INET
, blobmsg_data(cur
),
3838 &p6
.relay_prefix
, &mask
) || mask
> 32) {
3843 p6
.relay_prefixlen
= mask
;
3846 if (tunnel_ioctl(name
, SIOCADD6RD
, &p6
) < 0) {
3856 system_link_del(name
);
3860 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
, const unsigned int link
, struct blob_attr
**tb
)
3862 struct blob_attr
*cur
;
3864 struct ip_tunnel_parm p
= {
3873 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
]) &&
3874 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.saddr
) < 1)
3877 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
]) &&
3878 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.daddr
) < 1)
3881 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
3882 set_df
= blobmsg_get_bool(cur
);
3884 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3885 p
.iph
.ttl
= blobmsg_get_u32(cur
);
3887 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3888 char *str
= blobmsg_get_string(cur
);
3889 if (strcmp(str
, "inherit")) {
3892 if (!system_tos_aton(str
, &uval
))
3900 p
.iph
.frag_off
= set_df
? htons(IP_DF
) : 0;
3901 /* ttl !=0 and nopmtudisc are incompatible */
3902 if (p
.iph
.ttl
&& p
.iph
.frag_off
== 0)
3905 strncpy(p
.name
, name
, sizeof(p
.name
) - 1);
3907 switch (p
.iph
.protocol
) {
3909 return tunnel_ioctl("tunl0", SIOCADDTUNNEL
, &p
);
3911 return tunnel_ioctl("sit0", SIOCADDTUNNEL
, &p
);
3918 int system_del_ip_tunnel(const struct device
*dev
)
3920 return system_link_del(dev
->ifname
);
3923 int system_update_ipv6_mtu(struct device
*dev
, int mtu
)
3929 fd
= open(dev_sysctl_path("ipv6/conf", dev
->ifname
, "mtu"), O_RDWR
);
3934 ssize_t len
= read(fd
, buf
, sizeof(buf
) - 1);
3941 if (write(fd
, buf
, snprintf(buf
, sizeof(buf
), "%i", mtu
)) > 0)
3950 int system_add_ip_tunnel(const struct device
*dev
, struct blob_attr
*attr
)
3952 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
3953 struct blob_attr
*cur
;
3956 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
3957 blob_data(attr
), blob_len(attr
));
3959 system_link_del(dev
->ifname
);
3961 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
3963 str
= blobmsg_data(cur
);
3965 unsigned int ttl
= 0;
3966 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
3967 ttl
= blobmsg_get_u32(cur
);
3972 unsigned int link
= 0;
3973 if ((cur
= tb
[TUNNEL_ATTR_LINK
])) {
3974 struct interface
*iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
3978 if (iface
->l3_dev
.dev
)
3979 link
= iface
->l3_dev
.dev
->ifindex
;
3982 if (!strcmp(str
, "sit"))
3983 return system_add_sit_tunnel(dev
->ifname
, link
, tb
);
3984 #ifdef IFLA_IPTUN_MAX
3985 else if (!strcmp(str
, "ipip6")) {
3986 return system_add_ip6_tunnel(dev
->ifname
, link
, tb
);
3987 } else if (!strcmp(str
, "greip")) {
3988 return system_add_gre_tunnel(dev
->ifname
, "gre", link
, tb
, false);
3989 } else if (!strcmp(str
, "gretapip")) {
3990 return system_add_gre_tunnel(dev
->ifname
, "gretap", link
, tb
, false);
3991 } else if (!strcmp(str
, "greip6")) {
3992 return system_add_gre_tunnel(dev
->ifname
, "ip6gre", link
, tb
, true);
3993 } else if (!strcmp(str
, "gretapip6")) {
3994 return system_add_gre_tunnel(dev
->ifname
, "ip6gretap", link
, tb
, true);
3996 } else if (!strcmp(str
, "vtiip")) {
3997 return system_add_vti_tunnel(dev
->ifname
, "vti", link
, tb
, false);
3998 } else if (!strcmp(str
, "vtiip6")) {
3999 return system_add_vti_tunnel(dev
->ifname
, "vti6", link
, tb
, true);
4001 #ifdef IFLA_XFRM_MAX
4002 } else if (!strcmp(str
, "xfrm")) {
4003 return system_add_xfrm_tunnel(dev
->ifname
, "xfrm", link
, tb
);
4005 #ifdef IFLA_VXLAN_MAX
4006 } else if(!strcmp(str
, "vxlan")) {
4007 return system_add_vxlan(dev
->ifname
, link
, tb
, false);
4008 } else if(!strcmp(str
, "vxlan6")) {
4009 return system_add_vxlan(dev
->ifname
, link
, tb
, true);
4012 } else if (!strcmp(str
, "ipip")) {
4013 return system_add_proto_tunnel(dev
->ifname
, IPPROTO_IPIP
, link
, tb
);