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";
102 static const struct netdev_type netdev_types
[] = {
103 {ARPHRD_NETROM
, "netrom"},
104 {ARPHRD_ETHER
, "ethernet"},
105 {ARPHRD_EETHER
, "eethernet"},
106 {ARPHRD_AX25
, "ax25"},
107 {ARPHRD_PRONET
, "pronet"},
108 {ARPHRD_CHAOS
, "chaos"},
109 {ARPHRD_IEEE802
, "ieee802"},
110 {ARPHRD_ARCNET
, "arcnet"},
111 {ARPHRD_APPLETLK
, "appletlk"},
112 {ARPHRD_DLCI
, "dlci"},
114 {ARPHRD_METRICOM
, "metricom"},
115 {ARPHRD_IEEE1394
, "ieee1394"},
116 {ARPHRD_EUI64
, "eui64"},
117 {ARPHRD_INFINIBAND
, "infiniband"},
118 {ARPHRD_SLIP
, "slip"},
119 {ARPHRD_CSLIP
, "cslip"},
120 {ARPHRD_SLIP6
, "slip6"},
121 {ARPHRD_CSLIP6
, "cslip6"},
122 {ARPHRD_RSRVD
, "rsrvd"},
123 {ARPHRD_ADAPT
, "adapt"},
124 {ARPHRD_ROSE
, "rose"},
126 {ARPHRD_HWX25
, "hwx25"},
128 {ARPHRD_CISCO
, "cisco"},
129 {ARPHRD_LAPB
, "lapb"},
130 {ARPHRD_DDCMP
, "ddcmp"},
131 {ARPHRD_RAWHDLC
, "rawhdlc"},
132 {ARPHRD_TUNNEL
, "tunnel"},
133 {ARPHRD_TUNNEL6
, "tunnel6"},
134 {ARPHRD_FRAD
, "frad"},
135 {ARPHRD_SKIP
, "skip"},
136 {ARPHRD_LOOPBACK
, "loopback"},
137 {ARPHRD_LOCALTLK
, "localtlk"},
138 {ARPHRD_FDDI
, "fddi"},
141 {ARPHRD_IPDDP
, "ipddp"},
142 {ARPHRD_IPGRE
, "ipgre"},
143 {ARPHRD_PIMREG
,"pimreg"},
144 {ARPHRD_HIPPI
, "hippi"},
146 {ARPHRD_ECONET
, "econet"},
147 {ARPHRD_IRDA
, "irda"},
148 {ARPHRD_FCPP
, "fcpp"},
149 {ARPHRD_FCAL
, "fcal"},
150 {ARPHRD_FCPL
, "fcpl"},
151 {ARPHRD_FCFABRIC
, "fcfabric"},
152 {ARPHRD_IEEE80211
, "ieee80211"},
153 {ARPHRD_IEEE80211_PRISM
, "ie80211-prism"},
154 {ARPHRD_IEEE80211_RADIOTAP
, "ieee80211-radiotap"},
156 {ARPHRD_PHONET
, "phonet"},
158 #ifdef ARPHRD_PHONET_PIPE
159 {ARPHRD_PHONET_PIPE
, "phonet-pipe"},
161 {ARPHRD_IEEE802154
, "ieee802154"},
162 {ARPHRD_VOID
, "void"},
163 {ARPHRD_NONE
, "none"}
167 handler_nl_event(struct uloop_fd
*u
, unsigned int events
)
169 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
171 socklen_t errlen
= sizeof(err
);
174 nl_recvmsgs_default(ev
->sock
);
178 if (getsockopt(u
->fd
, SOL_SOCKET
, SO_ERROR
, (void *)&err
, &errlen
))
183 /* Increase rx buffer size on netlink socket */
185 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
188 /* Request full dump since some info got dropped */
189 struct rtgenmsg msg
= { .rtgen_family
= AF_UNSPEC
};
190 nl_send_simple(ev
->sock
, RTM_GETLINK
, NLM_F_DUMP
, &msg
, sizeof(msg
));
200 uloop_fd_delete(&ev
->uloop
);
204 static struct nl_sock
*
205 create_socket(int protocol
, int groups
)
207 struct nl_sock
*sock
;
209 sock
= nl_socket_alloc();
214 nl_join_groups(sock
, groups
);
216 if (nl_connect(sock
, protocol
)) {
217 nl_socket_free(sock
);
225 create_raw_event_socket(struct event_socket
*ev
, int protocol
, int groups
,
226 uloop_fd_handler cb
, int flags
)
228 ev
->sock
= create_socket(protocol
, groups
);
232 ev
->uloop
.fd
= nl_socket_get_fd(ev
->sock
);
234 if (uloop_fd_add(&ev
->uloop
, ULOOP_READ
|flags
))
241 create_event_socket(struct event_socket
*ev
, int protocol
,
242 int (*cb
)(struct nl_msg
*msg
, void *arg
))
244 if (!create_raw_event_socket(ev
, protocol
, 0, handler_nl_event
, ULOOP_ERROR_CB
))
247 /* Install the valid custom callback handler */
248 nl_socket_modify_cb(ev
->sock
, NL_CB_VALID
, NL_CB_CUSTOM
, cb
, NULL
);
250 /* Disable sequence number checking on event sockets */
251 nl_socket_disable_seq_check(ev
->sock
);
253 /* Increase rx buffer size to 65K on event sockets */
255 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
262 create_hotplug_event_socket(struct event_socket
*ev
, int protocol
,
263 void (*cb
)(struct uloop_fd
*u
, unsigned int events
))
265 if (!create_raw_event_socket(ev
, protocol
, 1, cb
, ULOOP_ERROR_CB
))
268 /* Increase rx buffer size to 65K on event sockets */
270 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
277 system_rtn_aton(const char *src
, unsigned int *dst
)
282 if (!strcmp(src
, "local"))
284 else if (!strcmp(src
, "nat"))
286 else if (!strcmp(src
, "broadcast"))
288 else if (!strcmp(src
, "anycast"))
290 else if (!strcmp(src
, "multicast"))
292 else if (!strcmp(src
, "prohibit"))
294 else if (!strcmp(src
, "unreachable"))
296 else if (!strcmp(src
, "blackhole"))
298 else if (!strcmp(src
, "xresolve"))
300 else if (!strcmp(src
, "unicast"))
302 else if (!strcmp(src
, "throw"))
304 else if (!strcmp(src
, "failed_policy"))
305 n
= RTN_FAILED_POLICY
;
307 n
= strtoul(src
, &e
, 0);
308 if (!e
|| *e
|| e
== src
|| n
> 255)
317 system_tos_aton(const char *src
, unsigned *dst
)
321 *dst
= strtoul(src
, &e
, 16);
322 if (e
== src
|| *e
|| *dst
> 255)
328 int system_init(void)
330 static struct event_socket rtnl_event
;
331 static struct event_socket hotplug_event
;
333 sock_ioctl
= socket(AF_LOCAL
, SOCK_DGRAM
, 0);
334 system_fd_set_cloexec(sock_ioctl
);
336 /* Prepare socket for routing / address control */
337 sock_rtnl
= create_socket(NETLINK_ROUTE
, 0);
341 if (!create_event_socket(&rtnl_event
, NETLINK_ROUTE
, cb_rtnl_event
))
344 if (!create_hotplug_event_socket(&hotplug_event
, NETLINK_KOBJECT_UEVENT
,
345 handle_hotplug_event
))
348 /* Receive network link events form kernel */
349 nl_socket_add_membership(rtnl_event
.sock
, RTNLGRP_LINK
);
354 static void write_file(const char *path
, const char *val
)
358 fd
= open(path
, O_WRONLY
);
362 if (write(fd
, val
, strlen(val
))) {}
366 static int read_file(const char *path
, char *buf
, const size_t buf_sz
)
368 int fd
= -1, ret
= -1;
370 fd
= open(path
, O_RDONLY
);
374 ssize_t len
= read(fd
, buf
, buf_sz
- 1);
389 dev_sysctl_path(const char *prefix
, const char *ifname
, const char *file
)
391 snprintf(dev_buf
, sizeof(dev_buf
), "%s/sys/net/%s/%s/%s", proc_path
, prefix
, ifname
, file
);
397 dev_sysfs_path(const char *ifname
, const char *file
)
399 snprintf(dev_buf
, sizeof(dev_buf
), "%s/class/net/%s/%s", sysfs_path
, ifname
, file
);
405 system_set_dev_sysctl(const char *prefix
, const char *file
, const char *ifname
,
408 write_file(dev_sysctl_path(prefix
, ifname
, file
), val
);
412 system_get_dev_sysctl(const char *prefix
, const char *file
, const char *ifname
,
413 char *buf
, size_t buf_sz
)
415 return read_file(dev_sysctl_path(prefix
, ifname
, file
), buf
, buf_sz
);
419 system_set_dev_sysfs(const char *file
, const char *ifname
, const char *val
)
424 write_file(dev_sysfs_path(ifname
, file
), val
);
428 system_set_dev_sysfs_int(const char *file
, const char *ifname
, int val
)
432 snprintf(buf
, sizeof(buf
), "%d", val
);
433 system_set_dev_sysfs(file
, ifname
, buf
);
437 system_get_dev_sysfs(const char *file
, const char *ifname
, char *buf
, size_t buf_sz
)
439 return read_file(dev_sysfs_path(ifname
, file
), buf
, buf_sz
);
442 static void system_set_disable_ipv6(struct device
*dev
, const char *val
)
444 system_set_dev_sysctl("ipv6/conf", "disable_ipv6", dev
->ifname
, val
);
447 static void system_set_ip6segmentrouting(struct device
*dev
, const char *val
)
449 system_set_dev_sysctl("ipv6/conf", "seg6_enabled", dev
->ifname
, val
);
452 static void system_set_rpfilter(struct device
*dev
, const char *val
)
454 system_set_dev_sysctl("ipv4/conf", "rp_filter", dev
->ifname
, val
);
457 static void system_set_acceptlocal(struct device
*dev
, const char *val
)
459 system_set_dev_sysctl("ipv4/conf", "accept_local", dev
->ifname
, val
);
462 static void system_set_igmpversion(struct device
*dev
, const char *val
)
464 system_set_dev_sysctl("ipv4/conf", "force_igmp_version", dev
->ifname
, val
);
467 static void system_set_mldversion(struct device
*dev
, const char *val
)
469 system_set_dev_sysctl("ipv6/conf", "force_mld_version", dev
->ifname
, val
);
472 static void system_set_neigh4reachabletime(struct device
*dev
, const char *val
)
474 system_set_dev_sysctl("ipv4/neigh", "base_reachable_time_ms", dev
->ifname
, val
);
477 static void system_set_neigh6reachabletime(struct device
*dev
, const char *val
)
479 system_set_dev_sysctl("ipv6/neigh", "base_reachable_time_ms", dev
->ifname
, val
);
482 static void system_set_neigh4gcstaletime(struct device
*dev
, const char *val
)
484 system_set_dev_sysctl("ipv4/neigh", "gc_stale_time", dev
->ifname
, val
);
487 static void system_set_neigh6gcstaletime(struct device
*dev
, const char *val
)
489 system_set_dev_sysctl("ipv6/neigh", "gc_stale_time", dev
->ifname
, val
);
492 static void system_set_neigh4locktime(struct device
*dev
, const char *val
)
494 system_set_dev_sysctl("ipv4/neigh", "locktime", dev
->ifname
, val
);
497 static void system_set_dadtransmits(struct device
*dev
, const char *val
)
499 system_set_dev_sysctl("ipv6/conf", "dad_transmits", dev
->ifname
, val
);
502 static void system_set_sendredirects(struct device
*dev
, const char *val
)
504 system_set_dev_sysctl("ipv4/conf", "send_redirects", dev
->ifname
, val
);
507 static void system_set_drop_v4_unicast_in_l2_multicast(struct device
*dev
, const char *val
)
509 system_set_dev_sysctl("ipv4/conf", "drop_unicast_in_l2_multicast", dev
->ifname
, val
);
512 static void system_set_drop_v6_unicast_in_l2_multicast(struct device
*dev
, const char *val
)
514 system_set_dev_sysctl("ipv6/conf", "drop_unicast_in_l2_multicast", dev
->ifname
, val
);
517 static void system_set_drop_gratuitous_arp(struct device
*dev
, const char *val
)
519 system_set_dev_sysctl("ipv4/conf", "drop_gratuitous_arp", dev
->ifname
, val
);
522 static void system_set_drop_unsolicited_na(struct device
*dev
, const char *val
)
524 system_set_dev_sysctl("ipv6/conf", "drop_unsolicited_na", dev
->ifname
, val
);
527 static void system_set_arp_accept(struct device
*dev
, const char *val
)
529 system_set_dev_sysctl("ipv4/conf", "arp_accept", dev
->ifname
, val
);
532 static void system_bridge_set_multicast_to_unicast(struct device
*dev
, const char *val
)
534 system_set_dev_sysfs("brport/multicast_to_unicast", dev
->ifname
, val
);
537 static void system_bridge_set_multicast_fast_leave(struct device
*dev
, const char *val
)
539 system_set_dev_sysfs("brport/multicast_fast_leave", dev
->ifname
, val
);
542 static void system_bridge_set_hairpin_mode(struct device
*dev
, const char *val
)
544 system_set_dev_sysfs("brport/hairpin_mode", dev
->ifname
, val
);
547 static void system_bridge_set_proxyarp_wifi(struct device
*dev
, const char *val
)
549 system_set_dev_sysfs("brport/proxyarp_wifi", dev
->ifname
, val
);
552 static void system_bridge_set_bpdu_filter(struct device
*dev
, const char *val
)
554 system_set_dev_sysfs("brport/bpdu_filter", dev
->ifname
, val
);
557 static void system_bridge_set_isolated(struct device
*dev
, const char *val
)
559 system_set_dev_sysfs("brport/isolated", dev
->ifname
, val
);
562 static void system_bridge_set_multicast_router(struct device
*dev
, const char *val
)
564 system_set_dev_sysfs("brport/multicast_router", dev
->ifname
, val
);
567 void system_bridge_set_stp_state(struct device
*dev
, bool val
)
569 const char *valstr
= val
? "1" : "0";
571 system_set_dev_sysfs("bridge/stp_state", dev
->ifname
, valstr
);
574 static void system_bridge_set_learning(struct device
*dev
, const char *val
)
576 system_set_dev_sysfs("brport/learning", dev
->ifname
, val
);
579 static void system_bridge_set_unicast_flood(struct device
*dev
, const char *val
)
581 system_set_dev_sysfs("brport/unicast_flood", dev
->ifname
, val
);
584 static int system_get_disable_ipv6(struct device
*dev
, char *buf
, const size_t buf_sz
)
586 return system_get_dev_sysctl("ipv6/conf", "disable_ipv6",
587 dev
->ifname
, buf
, buf_sz
);
590 static int system_get_ip6segmentrouting(struct device
*dev
, char *buf
, const size_t buf_sz
)
592 return system_get_dev_sysctl("ipv6/conf", "seg6_enabled",
593 dev
->ifname
, buf
, buf_sz
);
596 static int system_get_rpfilter(struct device
*dev
, char *buf
, const size_t buf_sz
)
598 return system_get_dev_sysctl("ipv4/conf", "rp_filter",
599 dev
->ifname
, buf
, buf_sz
);
602 static int system_get_acceptlocal(struct device
*dev
, char *buf
, const size_t buf_sz
)
604 return system_get_dev_sysctl("ipv4/conf", "accept_local",
605 dev
->ifname
, buf
, buf_sz
);
608 static int system_get_igmpversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
610 return system_get_dev_sysctl("ipv4/conf", "force_igmp_version",
611 dev
->ifname
, buf
, buf_sz
);
614 static int system_get_mldversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
616 return system_get_dev_sysctl("ipv6/conf", "force_mld_version",
617 dev
->ifname
, buf
, buf_sz
);
620 static int system_get_neigh4reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
622 return system_get_dev_sysctl("ipv4/neigh", "base_reachable_time_ms",
623 dev
->ifname
, buf
, buf_sz
);
626 static int system_get_neigh6reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
628 return system_get_dev_sysctl("ipv6/neigh", "base_reachable_time_ms",
629 dev
->ifname
, buf
, buf_sz
);
632 static int system_get_neigh4gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
634 return system_get_dev_sysctl("ipv4/neigh", "gc_stale_time",
635 dev
->ifname
, buf
, buf_sz
);
638 static int system_get_neigh6gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
640 return system_get_dev_sysctl("ipv6/neigh", "gc_stale_time",
641 dev
->ifname
, buf
, buf_sz
);
644 static int system_get_neigh4locktime(struct device
*dev
, char *buf
, const size_t buf_sz
)
646 return system_get_dev_sysctl("ipv4/neigh", "locktime",
647 dev
->ifname
, buf
, buf_sz
);
650 static int system_get_dadtransmits(struct device
*dev
, char *buf
, const size_t buf_sz
)
652 return system_get_dev_sysctl("ipv6/conf", "dad_transmits",
653 dev
->ifname
, buf
, buf_sz
);
656 static int system_get_sendredirects(struct device
*dev
, char *buf
, const size_t buf_sz
)
658 return system_get_dev_sysctl("ipv4/conf", "send_redirects",
659 dev
->ifname
, buf
, buf_sz
);
663 static int system_get_drop_v4_unicast_in_l2_multicast(struct device
*dev
, char *buf
, const size_t buf_sz
)
665 return system_get_dev_sysctl("ipv4/conf", "drop_unicast_in_l2_multicast",
666 dev
->ifname
, buf
, buf_sz
);
669 static int system_get_drop_v6_unicast_in_l2_multicast(struct device
*dev
, char *buf
, const size_t buf_sz
)
671 return system_get_dev_sysctl("ipv6/conf", "drop_unicast_in_l2_multicast",
672 dev
->ifname
, buf
, buf_sz
);
675 static int system_get_drop_gratuitous_arp(struct device
*dev
, char *buf
, const size_t buf_sz
)
677 return system_get_dev_sysctl("ipv4/conf", "drop_gratuitous_arp",
678 dev
->ifname
, buf
, buf_sz
);
681 static int system_get_drop_unsolicited_na(struct device
*dev
, char *buf
, const size_t buf_sz
)
683 return system_get_dev_sysctl("ipv6/conf", "drop_unsolicited_na",
684 dev
->ifname
, buf
, buf_sz
);
687 static int system_get_arp_accept(struct device
*dev
, char *buf
, const size_t buf_sz
)
689 return system_get_dev_sysctl("ipv4/conf", "arp_accept",
690 dev
->ifname
, buf
, buf_sz
);
693 /* Evaluate netlink messages */
694 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
)
696 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
697 struct nlattr
*nla
[__IFLA_MAX
];
701 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
704 nlmsg_parse(nh
, sizeof(struct ifinfomsg
), nla
, __IFLA_MAX
- 1, NULL
);
705 if (!nla
[IFLA_IFNAME
])
708 struct device
*dev
= device_find(nla_data(nla
[IFLA_IFNAME
]));
712 if (!system_get_dev_sysfs("carrier", dev
->ifname
, buf
, sizeof(buf
)))
713 link_state
= strtoul(buf
, NULL
, 0);
715 if (dev
->type
== &simple_device_type
)
716 device_set_present(dev
, true);
718 device_set_link(dev
, link_state
? true : false);
725 handle_hotplug_msg(char *data
, int size
)
727 const char *subsystem
= NULL
, *interface
= NULL
, *interface_old
= NULL
;
728 char *cur
, *end
, *sep
;
732 if (!strncmp(data
, "add@", 4) || !strncmp(data
, "move@", 5))
734 else if (!strncmp(data
, "remove@", 7))
739 skip
= strlen(data
) + 1;
742 for (cur
= data
+ skip
; cur
< end
; cur
+= skip
) {
743 skip
= strlen(cur
) + 1;
745 sep
= strchr(cur
, '=');
750 if (!strcmp(cur
, "INTERFACE"))
752 else if (!strcmp(cur
, "SUBSYSTEM")) {
754 if (strcmp(subsystem
, "net") != 0)
756 } else if (!strcmp(cur
, "DEVPATH_OLD")) {
757 interface_old
= strrchr(sep
+ 1, '/');
763 if (!subsystem
|| !interface
)
767 device_hotplug_event(interface_old
, false);
769 device_hotplug_event(interface
, add
);
773 handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
)
775 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
776 struct sockaddr_nl nla
;
777 unsigned char *buf
= NULL
;
780 socklen_t errlen
= sizeof(err
);
783 while ((size
= nl_recv(ev
->sock
, &nla
, &buf
, NULL
)) > 0) {
785 handle_hotplug_msg((char *) buf
, size
);
792 if (getsockopt(u
->fd
, SOL_SOCKET
, SO_ERROR
, (void *)&err
, &errlen
))
797 /* Increase rx buffer size on netlink socket */
799 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
810 uloop_fd_delete(&ev
->uloop
);
814 static int system_rtnl_call(struct nl_msg
*msg
)
818 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
824 return nl_wait_for_ack(sock_rtnl
);
827 static struct nl_msg
*__system_ifinfo_msg(int af
, int index
, const char *ifname
, uint16_t type
, uint16_t flags
)
830 struct ifinfomsg iim
= {
835 msg
= nlmsg_alloc_simple(type
, flags
| NLM_F_REQUEST
);
839 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
841 nla_put_string(msg
, IFLA_IFNAME
, ifname
);
846 static struct nl_msg
*system_ifinfo_msg(const char *ifname
, uint16_t type
, uint16_t flags
)
848 return __system_ifinfo_msg(AF_UNSPEC
, 0, ifname
, type
, flags
);
851 static int system_link_del(const char *ifname
)
855 msg
= system_ifinfo_msg(ifname
, RTM_DELLINK
, 0);
859 return system_rtnl_call(msg
);
862 int system_bridge_delbr(struct device
*bridge
)
864 return system_link_del(bridge
->ifname
);
867 static int system_bridge_if(const char *bridge
, struct device
*dev
, int cmd
, void *data
)
871 memset(&ifr
, 0, sizeof(ifr
));
873 ifr
.ifr_ifindex
= dev
->ifindex
;
876 strncpy(ifr
.ifr_name
, bridge
, sizeof(ifr
.ifr_name
) - 1);
877 return ioctl(sock_ioctl
, cmd
, &ifr
);
880 static bool system_is_bridge(const char *name
)
884 return stat(dev_sysfs_path(name
, "bridge"), &st
) >= 0;
887 static char *system_get_bridge(const char *name
, char *buf
, int buflen
)
893 snprintf(buf
, buflen
, "%s/devices/virtual/net/*/brif/%s/bridge", sysfs_path
, name
);
894 if (glob(buf
, GLOB_NOSORT
, NULL
, &gl
) < 0)
898 len
= readlink(gl
.gl_pathv
[0], buf
, buflen
);
906 path
= strrchr(buf
, '/');
914 system_bridge_set_wireless(struct device
*bridge
, struct device
*dev
)
916 bool mcast_to_ucast
= dev
->wireless_ap
;
919 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
)
920 mcast_to_ucast
= dev
->settings
.multicast_to_unicast
;
921 else if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
&&
922 !bridge
->settings
.multicast_to_unicast
)
923 mcast_to_ucast
= false;
925 hairpin
= mcast_to_ucast
|| dev
->wireless_proxyarp
;
926 if (dev
->wireless_isolate
)
929 system_bridge_set_multicast_to_unicast(dev
, mcast_to_ucast
? "1" : "0");
930 system_bridge_set_hairpin_mode(dev
, hairpin
? "1" : "0");
931 system_bridge_set_proxyarp_wifi(dev
, dev
->wireless_proxyarp
? "1" : "0");
934 int system_bridge_addif(struct device
*bridge
, struct device
*dev
)
943 oldbr
= system_get_bridge(dev
->ifname
, dev_buf
, sizeof(dev_buf
));
944 if (!oldbr
|| strcmp(oldbr
, bridge
->ifname
) != 0) {
945 ret
= system_bridge_if(bridge
->ifname
, dev
, SIOCBRADDIF
, NULL
);
947 D(SYSTEM
, "Failed to add device '%s' to bridge '%s' (tries=%d): %s\n",
948 dev
->ifname
, bridge
->ifname
, tries
, strerror(errno
));
954 system_bridge_set_wireless(bridge
, dev
);
956 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
957 snprintf(buf
, sizeof(buf
), "%u", dev
->settings
.multicast_router
);
958 system_bridge_set_multicast_router(dev
, buf
);
961 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
&&
962 dev
->settings
.multicast_fast_leave
)
963 system_bridge_set_multicast_fast_leave(dev
, "1");
965 if (dev
->settings
.flags
& DEV_OPT_LEARNING
&&
966 !dev
->settings
.learning
)
967 system_bridge_set_learning(dev
, "0");
969 if (dev
->settings
.flags
& DEV_OPT_UNICAST_FLOOD
&&
970 !dev
->settings
.unicast_flood
)
971 system_bridge_set_unicast_flood(dev
, "0");
973 if (dev
->settings
.flags
& DEV_OPT_ISOLATE
&&
974 dev
->settings
.isolate
)
975 system_bridge_set_isolated(dev
, "1");
977 if (dev
->bpdu_filter
)
978 system_bridge_set_bpdu_filter(dev
, dev
->bpdu_filter
? "1" : "0");
983 int system_bridge_delif(struct device
*bridge
, struct device
*dev
)
985 return system_bridge_if(bridge
->ifname
, dev
, SIOCBRDELIF
, NULL
);
988 int system_bridge_vlan(const char *iface
, uint16_t vid
, bool add
, unsigned int vflags
)
990 struct bridge_vlan_info vinfo
= { .vid
= vid
, };
991 unsigned short flags
= 0;
992 struct nlattr
*afspec
;
997 index
= if_nametoindex(iface
);
1001 nlm
= __system_ifinfo_msg(PF_BRIDGE
, index
, NULL
, add
? RTM_SETLINK
: RTM_DELLINK
, 0);
1005 if (vflags
& BRVLAN_F_SELF
)
1006 flags
|= BRIDGE_FLAGS_SELF
;
1008 if (vflags
& BRVLAN_F_PVID
)
1009 vinfo
.flags
|= BRIDGE_VLAN_INFO_PVID
;
1011 if (vflags
& BRVLAN_F_UNTAGGED
)
1012 vinfo
.flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
1014 afspec
= nla_nest_start(nlm
, IFLA_AF_SPEC
);
1021 nla_put_u16(nlm
, IFLA_BRIDGE_FLAGS
, flags
);
1023 nla_put(nlm
, IFLA_BRIDGE_VLAN_INFO
, sizeof(vinfo
), &vinfo
);
1024 nla_nest_end(nlm
, afspec
);
1026 return system_rtnl_call(nlm
);
1033 int system_bonding_set_device(struct device
*dev
, struct bonding_config
*cfg
)
1035 const char *ifname
= dev
->ifname
;
1036 struct blob_attr
*cur
;
1037 char op
= cfg
? '+' : '-';
1041 snprintf(dev_buf
, sizeof(dev_buf
), "%s/class/net/bonding_masters", sysfs_path
);
1042 snprintf(buf
, sizeof(buf
), "%c%s", op
, ifname
);
1043 write_file(dev_buf
, buf
);
1048 system_set_dev_sysfs("bonding/mode", ifname
, bonding_policy_str
[cfg
->policy
]);
1050 system_set_dev_sysfs_int("bonding/all_ports_active", ifname
, cfg
->all_ports_active
);
1052 if (cfg
->policy
== BONDING_MODE_BALANCE_XOR
||
1053 cfg
->policy
== BONDING_MODE_BALANCE_TLB
||
1054 cfg
->policy
== BONDING_MODE_8023AD
)
1055 system_set_dev_sysfs("bonding/xmit_hash_policy", ifname
, cfg
->xmit_hash_policy
);
1057 if (cfg
->policy
== BONDING_MODE_8023AD
) {
1058 system_set_dev_sysfs("bonding/ad_actor_system", ifname
, cfg
->ad_actor_system
);
1059 system_set_dev_sysfs_int("bonding/ad_actor_sys_prio", ifname
, cfg
->ad_actor_sys_prio
);
1060 system_set_dev_sysfs("bonding/ad_select", ifname
, cfg
->ad_select
);
1061 system_set_dev_sysfs("bonding/lacp_rate", ifname
, cfg
->lacp_rate
);
1062 system_set_dev_sysfs_int("bonding/min_links", ifname
, cfg
->min_links
);
1065 if (cfg
->policy
== BONDING_MODE_BALANCE_RR
)
1066 system_set_dev_sysfs_int("bonding/packets_per_slave", ifname
, cfg
->packets_per_port
);
1068 if (cfg
->policy
== BONDING_MODE_BALANCE_TLB
||
1069 cfg
->policy
== BONDING_MODE_BALANCE_ALB
)
1070 system_set_dev_sysfs_int("bonding/lp_interval", ifname
, cfg
->lp_interval
);
1072 if (cfg
->policy
== BONDING_MODE_BALANCE_TLB
)
1073 system_set_dev_sysfs_int("bonding/tlb_dynamic_lb", ifname
, cfg
->dynamic_lb
);
1074 system_set_dev_sysfs_int("bonding/resend_igmp", ifname
, cfg
->resend_igmp
);
1075 system_set_dev_sysfs_int("bonding/num_grat_arp", ifname
, cfg
->num_peer_notif
);
1076 system_set_dev_sysfs("bonding/primary_reselect", ifname
, cfg
->primary_reselect
);
1077 system_set_dev_sysfs("bonding/fail_over_mac", ifname
, cfg
->failover_mac
);
1079 system_set_dev_sysfs_int((cfg
->monitor_arp
?
1080 "bonding/arp_interval" :
1081 "bonding/miimon"), ifname
, cfg
->monitor_interval
);
1083 blobmsg_for_each_attr(cur
, cfg
->arp_target
, rem
) {
1084 snprintf(buf
, sizeof(buf
), "+%s", blobmsg_get_string(cur
));
1085 system_set_dev_sysfs("bonding/arp_ip_target", ifname
, buf
);
1088 system_set_dev_sysfs_int("bonding/arp_all_targets", ifname
, cfg
->arp_all_targets
);
1089 if (cfg
->policy
< BONDING_MODE_8023AD
)
1090 system_set_dev_sysfs("bonding/arp_validate", ifname
, cfg
->arp_validate
);
1091 system_set_dev_sysfs_int("bonding/use_carrier", ifname
, cfg
->use_carrier
);
1092 if (!cfg
->monitor_arp
&& cfg
->monitor_interval
) {
1093 system_set_dev_sysfs_int("bonding/updelay", ifname
, cfg
->updelay
);
1094 system_set_dev_sysfs_int("bonding/downdelay", ifname
, cfg
->downdelay
);
1100 int system_bonding_set_port(struct device
*dev
, struct device
*port
, bool add
, bool primary
)
1102 const char *port_name
= port
->ifname
;
1103 const char op_ch
= add
? '+' : '-';
1104 char buf
[IFNAMSIZ
+ 1];
1106 snprintf(buf
, sizeof(buf
), "%c%s", op_ch
, port_name
);
1107 system_if_down(port
);
1108 system_set_dev_sysfs("bonding/slaves", dev
->ifname
, buf
);
1112 system_set_dev_sysfs("bonding/primary", dev
->ifname
,
1113 add
? port_name
: "");
1118 int system_if_resolve(struct device
*dev
)
1122 memset(&ifr
, 0, sizeof(ifr
));
1123 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1124 if (!ioctl(sock_ioctl
, SIOCGIFINDEX
, &ifr
))
1125 return ifr
.ifr_ifindex
;
1130 static int system_if_flags(const char *ifname
, unsigned add
, unsigned rem
)
1134 memset(&ifr
, 0, sizeof(ifr
));
1135 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
1136 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) < 0)
1139 ifr
.ifr_flags
|= add
;
1140 ifr
.ifr_flags
&= ~rem
;
1141 return ioctl(sock_ioctl
, SIOCSIFFLAGS
, &ifr
);
1153 static bool check_ifaddr(struct nlmsghdr
*hdr
, int ifindex
)
1155 struct ifaddrmsg
*ifa
= NLMSG_DATA(hdr
);
1157 return (long)ifa
->ifa_index
== ifindex
;
1160 static bool check_route(struct nlmsghdr
*hdr
, int ifindex
)
1162 struct rtmsg
*r
= NLMSG_DATA(hdr
);
1163 struct nlattr
*tb
[__RTA_MAX
];
1165 if (r
->rtm_protocol
== RTPROT_KERNEL
&&
1166 r
->rtm_family
== AF_INET6
)
1169 nlmsg_parse(hdr
, sizeof(struct rtmsg
), tb
, __RTA_MAX
- 1, NULL
);
1173 return *(int *)RTA_DATA(tb
[RTA_OIF
]) == ifindex
;
1176 static bool check_rule(struct nlmsghdr
*hdr
, int ifindex
)
1181 static int cb_clear_event(struct nl_msg
*msg
, void *arg
)
1183 struct clear_data
*clr
= arg
;
1184 struct nlmsghdr
*hdr
= nlmsg_hdr(msg
);
1185 bool (*cb
)(struct nlmsghdr
*, int ifindex
);
1191 if (hdr
->nlmsg_type
!= RTM_NEWADDR
)
1197 type
= RTM_DELROUTE
;
1198 if (hdr
->nlmsg_type
!= RTM_NEWROUTE
)
1205 if (hdr
->nlmsg_type
!= RTM_NEWRULE
)
1214 if (!cb(hdr
, clr
->dev
? clr
->dev
->ifindex
: 0))
1217 if (type
== RTM_DELRULE
)
1218 D(SYSTEM
, "Remove a rule\n");
1220 D(SYSTEM
, "Remove %s from device %s\n",
1221 type
== RTM_DELADDR
? "an address" : "a route",
1224 memcpy(nlmsg_hdr(clr
->msg
), hdr
, hdr
->nlmsg_len
);
1225 hdr
= nlmsg_hdr(clr
->msg
);
1226 hdr
->nlmsg_type
= type
;
1227 hdr
->nlmsg_flags
= NLM_F_REQUEST
;
1229 nl_socket_disable_auto_ack(sock_rtnl
);
1230 ret
= nl_send_auto_complete(sock_rtnl
, clr
->msg
);
1232 if (type
== RTM_DELRULE
)
1233 D(SYSTEM
, "Error deleting a rule: %d\n", ret
);
1235 D(SYSTEM
, "Error deleting %s from device '%s': %d\n",
1236 type
== RTM_DELADDR
? "an address" : "a route",
1237 clr
->dev
->ifname
, ret
);
1240 nl_socket_enable_auto_ack(sock_rtnl
);
1246 cb_finish_event(struct nl_msg
*msg
, void *arg
)
1254 error_handler(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1257 *pending
= err
->error
;
1262 system_if_clear_entries(struct device
*dev
, int type
, int af
)
1264 struct clear_data clr
;
1266 struct rtmsg rtm
= {
1268 .rtm_flags
= RTM_F_CLONED
,
1270 int flags
= NLM_F_DUMP
;
1279 clr
.size
= sizeof(struct rtgenmsg
);
1282 clr
.size
= sizeof(struct rtmsg
);
1288 cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1292 clr
.msg
= nlmsg_alloc_simple(type
, flags
);
1296 nlmsg_append(clr
.msg
, &rtm
, clr
.size
, 0);
1297 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_clear_event
, &clr
);
1298 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, cb_finish_event
, &pending
);
1299 nl_cb_err(cb
, NL_CB_CUSTOM
, error_handler
, &pending
);
1301 if (nl_send_auto_complete(sock_rtnl
, clr
.msg
) < 0)
1305 nl_recvmsgs(sock_rtnl
, cb
);
1308 nlmsg_free(clr
.msg
);
1314 * Clear bridge (membership) state and bring down device
1316 void system_if_clear_state(struct device
*dev
)
1318 static char buf
[256];
1320 device_set_ifindex(dev
, system_if_resolve(dev
));
1322 if (dev
->external
|| !dev
->ifindex
)
1325 system_if_flags(dev
->ifname
, 0, IFF_UP
);
1327 if (system_is_bridge(dev
->ifname
)) {
1328 D(SYSTEM
, "Delete existing bridge named '%s'\n", dev
->ifname
);
1329 system_bridge_delbr(dev
);
1333 bridge
= system_get_bridge(dev
->ifname
, buf
, sizeof(buf
));
1335 D(SYSTEM
, "Remove device '%s' from bridge '%s'\n", dev
->ifname
, bridge
);
1336 system_bridge_if(bridge
, dev
, SIOCBRDELIF
, NULL
);
1339 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET
);
1340 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET
);
1341 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET6
);
1342 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET6
);
1343 system_if_clear_entries(dev
, RTM_GETNEIGH
, AF_INET
);
1344 system_if_clear_entries(dev
, RTM_GETNEIGH
, AF_INET6
);
1345 system_set_disable_ipv6(dev
, "0");
1348 static inline unsigned long
1349 sec_to_jiffies(int val
)
1351 return (unsigned long) val
* 100;
1354 int system_bridge_addbr(struct device
*bridge
, struct bridge_config
*cfg
)
1356 struct nlattr
*linkinfo
, *data
;
1361 msg
= system_ifinfo_msg(bridge
->ifname
, RTM_NEWLINK
, NLM_F_CREATE
| NLM_F_EXCL
);
1365 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1366 goto nla_put_failure
;
1368 nla_put_string(msg
, IFLA_INFO_KIND
, "bridge");
1370 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1371 goto nla_put_failure
;
1373 nla_put_u32(msg
, IFLA_BR_STP_STATE
, cfg
->stp
);
1374 nla_put_u32(msg
, IFLA_BR_FORWARD_DELAY
, sec_to_jiffies(cfg
->forward_delay
));
1375 nla_put_u8(msg
, IFLA_BR_MCAST_SNOOPING
, !!cfg
->igmp_snoop
);
1376 nla_put_u8(msg
, IFLA_BR_MCAST_QUERIER
, !!cfg
->multicast_querier
);
1377 nla_put_u32(msg
, IFLA_BR_MCAST_HASH_MAX
, cfg
->hash_max
);
1379 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
)
1380 nla_put_u8(msg
, IFLA_BR_MCAST_ROUTER
, !!bridge
->settings
.multicast_router
);
1382 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
) {
1383 nla_put_u32(msg
, IFLA_BR_MCAST_STARTUP_QUERY_CNT
, cfg
->robustness
);
1384 nla_put_u32(msg
, IFLA_BR_MCAST_LAST_MEMBER_CNT
, cfg
->robustness
);
1387 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
)
1388 nla_put_u64(msg
, IFLA_BR_MCAST_QUERY_INTVL
, cfg
->query_interval
);
1390 if (cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
)
1391 nla_put_u64(msg
, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL
, cfg
->query_response_interval
);
1393 if (cfg
->flags
& BRIDGE_OPT_LAST_MEMBER_INTERVAL
)
1394 nla_put_u64(msg
, IFLA_BR_MCAST_LAST_MEMBER_INTVL
, cfg
->last_member_interval
);
1396 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
||
1397 cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
||
1398 cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
1399 val
= cfg
->robustness
* cfg
->query_interval
+
1400 cfg
->query_response_interval
;
1402 nla_put_u64(msg
, IFLA_BR_MCAST_MEMBERSHIP_INTVL
, val
);
1404 val
-= cfg
->query_response_interval
/ 2;
1406 nla_put_u64(msg
, IFLA_BR_MCAST_QUERIER_INTVL
, val
);
1409 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1410 val
= cfg
->query_interval
/ 4;
1412 nla_put_u64(msg
, IFLA_BR_MCAST_STARTUP_QUERY_INTVL
, val
);
1415 nla_put_u8(msg
, IFLA_BR_VLAN_FILTERING
, !!cfg
->vlan_filtering
);
1416 nla_put_u16(msg
, IFLA_BR_PRIORITY
, cfg
->priority
);
1417 nla_put_u32(msg
, IFLA_BR_HELLO_TIME
, sec_to_jiffies(cfg
->hello_time
));
1418 nla_put_u32(msg
, IFLA_BR_MAX_AGE
, sec_to_jiffies(cfg
->max_age
));
1420 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
)
1421 nla_put_u32(msg
, IFLA_BR_AGEING_TIME
, sec_to_jiffies(cfg
->ageing_time
));
1423 nla_nest_end(msg
, data
);
1424 nla_nest_end(msg
, linkinfo
);
1426 rv
= system_rtnl_call(msg
);
1428 D(SYSTEM
, "Error adding bridge '%s': %d\n", bridge
->ifname
, rv
);
1437 int system_macvlan_add(struct device
*macvlan
, struct device
*dev
, struct macvlan_config
*cfg
)
1440 struct nlattr
*linkinfo
, *data
;
1443 static const struct {
1445 enum macvlan_mode val
;
1447 { "private", MACVLAN_MODE_PRIVATE
},
1448 { "vepa", MACVLAN_MODE_VEPA
},
1449 { "bridge", MACVLAN_MODE_BRIDGE
},
1450 { "passthru", MACVLAN_MODE_PASSTHRU
},
1453 msg
= system_ifinfo_msg(macvlan
->ifname
, RTM_NEWLINK
, NLM_F_CREATE
| NLM_F_EXCL
);
1457 if (cfg
->flags
& MACVLAN_OPT_MACADDR
)
1458 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1459 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1461 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1462 goto nla_put_failure
;
1464 nla_put_string(msg
, IFLA_INFO_KIND
, "macvlan");
1466 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1467 goto nla_put_failure
;
1470 for (i
= 0; i
< ARRAY_SIZE(modes
); i
++) {
1471 if (strcmp(cfg
->mode
, modes
[i
].name
) != 0)
1474 nla_put_u32(msg
, IFLA_MACVLAN_MODE
, modes
[i
].val
);
1479 nla_nest_end(msg
, data
);
1480 nla_nest_end(msg
, linkinfo
);
1482 rv
= system_rtnl_call(msg
);
1484 D(SYSTEM
, "Error adding macvlan '%s' over '%s': %d\n", macvlan
->ifname
, dev
->ifname
, rv
);
1493 int system_link_netns_move(struct device
*dev
, int netns_fd
, const char *target_ifname
)
1501 index
= system_if_resolve(dev
);
1502 msg
= __system_ifinfo_msg(AF_UNSPEC
, index
, target_ifname
, RTM_NEWLINK
, 0);
1506 nla_put_u32(msg
, IFLA_NET_NS_FD
, netns_fd
);
1507 return system_rtnl_call(msg
);
1510 int system_macvlan_del(struct device
*macvlan
)
1512 return system_link_del(macvlan
->ifname
);
1515 int system_netns_open(const pid_t target_ns
)
1517 char pid_net_path
[PATH_MAX
];
1519 snprintf(pid_net_path
, sizeof(pid_net_path
), "/proc/%u/ns/net", target_ns
);
1521 return open(pid_net_path
, O_RDONLY
);
1524 int system_netns_set(int netns_fd
)
1526 return setns(netns_fd
, CLONE_NEWNET
);
1529 int system_veth_add(struct device
*veth
, struct veth_config
*cfg
)
1532 struct ifinfomsg empty_iim
= {0,};
1533 struct nlattr
*linkinfo
, *data
, *veth_info
;
1536 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1541 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1543 if (cfg
->flags
& VETH_OPT_MACADDR
)
1544 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1545 nla_put_string(msg
, IFLA_IFNAME
, veth
->ifname
);
1547 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1548 goto nla_put_failure
;
1550 nla_put_string(msg
, IFLA_INFO_KIND
, "veth");
1552 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1553 goto nla_put_failure
;
1555 if (!(veth_info
= nla_nest_start(msg
, VETH_INFO_PEER
)))
1556 goto nla_put_failure
;
1558 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1560 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1561 nla_put_string(msg
, IFLA_IFNAME
, cfg
->peer_name
);
1562 if (cfg
->flags
& VETH_OPT_PEER_MACADDR
)
1563 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->peer_macaddr
), cfg
->peer_macaddr
);
1565 nla_nest_end(msg
, veth_info
);
1566 nla_nest_end(msg
, data
);
1567 nla_nest_end(msg
, linkinfo
);
1569 rv
= system_rtnl_call(msg
);
1571 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1572 D(SYSTEM
, "Error adding veth '%s' with peer '%s': %d\n", veth
->ifname
, cfg
->peer_name
, rv
);
1574 D(SYSTEM
, "Error adding veth '%s': %d\n", veth
->ifname
, rv
);
1584 int system_veth_del(struct device
*veth
)
1586 return system_link_del(veth
->ifname
);
1589 static int system_vlan(struct device
*dev
, int id
)
1591 struct vlan_ioctl_args ifr
= {
1592 .cmd
= SET_VLAN_NAME_TYPE_CMD
,
1593 .u
.name_type
= VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
,
1596 if (ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
) < 0)
1600 ifr
.cmd
= DEL_VLAN_CMD
;
1603 ifr
.cmd
= ADD_VLAN_CMD
;
1606 strncpy(ifr
.device1
, dev
->ifname
, sizeof(ifr
.device1
));
1607 return ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
1610 int system_vlan_add(struct device
*dev
, int id
)
1612 return system_vlan(dev
, id
);
1615 int system_vlan_del(struct device
*dev
)
1617 return system_vlan(dev
, -1);
1620 int system_vlandev_add(struct device
*vlandev
, struct device
*dev
, struct vlandev_config
*cfg
)
1623 struct nlattr
*linkinfo
, *data
, *qos
;
1624 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
};
1625 struct vlan_qos_mapping
*elem
;
1626 struct ifla_vlan_qos_mapping nl_qos_map
;
1629 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1634 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1635 nla_put_string(msg
, IFLA_IFNAME
, vlandev
->ifname
);
1636 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1638 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1639 goto nla_put_failure
;
1641 nla_put_string(msg
, IFLA_INFO_KIND
, "vlan");
1643 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1644 goto nla_put_failure
;
1646 nla_put_u16(msg
, IFLA_VLAN_ID
, cfg
->vid
);
1648 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
1649 nla_put_u16(msg
, IFLA_VLAN_PROTOCOL
, htons(cfg
->proto
));
1651 if(cfg
->proto
== VLAN_PROTO_8021AD
)
1652 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
);
1655 if (!(qos
= nla_nest_start(msg
, IFLA_VLAN_INGRESS_QOS
)))
1656 goto nla_put_failure
;
1658 vlist_simple_for_each_element(&cfg
->ingress_qos_mapping_list
, elem
, node
) {
1659 nl_qos_map
.from
= elem
->from
;
1660 nl_qos_map
.to
= elem
->to
;
1661 nla_put(msg
, IFLA_VLAN_QOS_MAPPING
, sizeof(nl_qos_map
), &nl_qos_map
);
1663 nla_nest_end(msg
, qos
);
1665 if (!(qos
= nla_nest_start(msg
, IFLA_VLAN_EGRESS_QOS
)))
1666 goto nla_put_failure
;
1668 vlist_simple_for_each_element(&cfg
->egress_qos_mapping_list
, elem
, node
) {
1669 nl_qos_map
.from
= elem
->from
;
1670 nl_qos_map
.to
= elem
->to
;
1671 nla_put(msg
, IFLA_VLAN_QOS_MAPPING
, sizeof(nl_qos_map
), &nl_qos_map
);
1673 nla_nest_end(msg
, qos
);
1675 nla_nest_end(msg
, data
);
1676 nla_nest_end(msg
, linkinfo
);
1678 rv
= system_rtnl_call(msg
);
1680 D(SYSTEM
, "Error adding vlandev '%s' over '%s': %d\n", vlandev
->ifname
, dev
->ifname
, rv
);
1689 int system_vlandev_del(struct device
*vlandev
)
1691 return system_link_del(vlandev
->ifname
);
1695 system_set_ethtool_settings(struct device
*dev
, struct device_settings
*s
)
1697 struct ethtool_cmd ecmd
= {
1698 .cmd
= ETHTOOL_GSET
,
1700 struct ifreq ifr
= {
1701 .ifr_data
= (caddr_t
)&ecmd
,
1703 static const struct {
1708 { 10, ETHTOOL_LINK_MODE_10baseT_Half_BIT
, ETHTOOL_LINK_MODE_10baseT_Full_BIT
},
1709 { 100, ETHTOOL_LINK_MODE_100baseT_Half_BIT
, ETHTOOL_LINK_MODE_100baseT_Full_BIT
},
1710 { 1000, ETHTOOL_LINK_MODE_1000baseT_Half_BIT
, ETHTOOL_LINK_MODE_1000baseT_Full_BIT
},
1715 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1717 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0)
1720 adv
= ecmd
.supported
;
1721 for (i
= 0; i
< ARRAY_SIZE(speed_mask
); i
++) {
1722 if (s
->flags
& DEV_OPT_DUPLEX
) {
1723 int bit
= s
->duplex
? speed_mask
[i
].bit_half
: speed_mask
[i
].bit_full
;
1727 if (!(s
->flags
& DEV_OPT_SPEED
) ||
1728 s
->speed
== speed_mask
[i
].speed
)
1731 adv
&= ~(1 << speed_mask
[i
].bit_full
);
1732 adv
&= ~(1 << speed_mask
[i
].bit_half
);
1736 if (ecmd
.autoneg
&& ecmd
.advertising
== adv
)
1740 ecmd
.advertising
= adv
;
1741 ecmd
.cmd
= ETHTOOL_SSET
;
1742 ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
);
1746 system_if_get_settings(struct device
*dev
, struct device_settings
*s
)
1751 memset(&ifr
, 0, sizeof(ifr
));
1752 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1754 if (ioctl(sock_ioctl
, SIOCGIFMTU
, &ifr
) == 0) {
1755 s
->mtu
= ifr
.ifr_mtu
;
1756 s
->flags
|= DEV_OPT_MTU
;
1759 s
->mtu6
= system_update_ipv6_mtu(dev
, 0);
1761 s
->flags
|= DEV_OPT_MTU6
;
1763 if (ioctl(sock_ioctl
, SIOCGIFTXQLEN
, &ifr
) == 0) {
1764 s
->txqueuelen
= ifr
.ifr_qlen
;
1765 s
->flags
|= DEV_OPT_TXQUEUELEN
;
1768 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0) {
1769 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
1770 s
->flags
|= DEV_OPT_MACADDR
;
1773 if (!system_get_disable_ipv6(dev
, buf
, sizeof(buf
))) {
1774 s
->ipv6
= !strtoul(buf
, NULL
, 0);
1775 s
->flags
|= DEV_OPT_IPV6
;
1778 if (!system_get_ip6segmentrouting(dev
, buf
, sizeof(buf
))) {
1779 s
->ip6segmentrouting
= strtoul(buf
, NULL
, 0);
1780 s
->flags
|= DEV_OPT_IP6SEGMENTROUTING
;
1783 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) == 0) {
1784 s
->promisc
= ifr
.ifr_flags
& IFF_PROMISC
;
1785 s
->flags
|= DEV_OPT_PROMISC
;
1787 s
->multicast
= ifr
.ifr_flags
& IFF_MULTICAST
;
1788 s
->flags
|= DEV_OPT_MULTICAST
;
1791 if (!system_get_rpfilter(dev
, buf
, sizeof(buf
))) {
1792 s
->rpfilter
= strtoul(buf
, NULL
, 0);
1793 s
->flags
|= DEV_OPT_RPFILTER
;
1796 if (!system_get_acceptlocal(dev
, buf
, sizeof(buf
))) {
1797 s
->acceptlocal
= strtoul(buf
, NULL
, 0);
1798 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
1801 if (!system_get_igmpversion(dev
, buf
, sizeof(buf
))) {
1802 s
->igmpversion
= strtoul(buf
, NULL
, 0);
1803 s
->flags
|= DEV_OPT_IGMPVERSION
;
1806 if (!system_get_mldversion(dev
, buf
, sizeof(buf
))) {
1807 s
->mldversion
= strtoul(buf
, NULL
, 0);
1808 s
->flags
|= DEV_OPT_MLDVERSION
;
1811 if (!system_get_neigh4reachabletime(dev
, buf
, sizeof(buf
))) {
1812 s
->neigh4reachabletime
= strtoul(buf
, NULL
, 0);
1813 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1816 if (!system_get_neigh6reachabletime(dev
, buf
, sizeof(buf
))) {
1817 s
->neigh6reachabletime
= strtoul(buf
, NULL
, 0);
1818 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1821 if (!system_get_neigh4locktime(dev
, buf
, sizeof(buf
))) {
1822 s
->neigh4locktime
= strtol(buf
, NULL
, 0);
1823 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
1826 if (!system_get_neigh4gcstaletime(dev
, buf
, sizeof(buf
))) {
1827 s
->neigh4gcstaletime
= strtoul(buf
, NULL
, 0);
1828 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1831 if (!system_get_neigh6gcstaletime(dev
, buf
, sizeof(buf
))) {
1832 s
->neigh6gcstaletime
= strtoul(buf
, NULL
, 0);
1833 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
1836 if (!system_get_dadtransmits(dev
, buf
, sizeof(buf
))) {
1837 s
->dadtransmits
= strtoul(buf
, NULL
, 0);
1838 s
->flags
|= DEV_OPT_DADTRANSMITS
;
1841 if (!system_get_sendredirects(dev
, buf
, sizeof(buf
))) {
1842 s
->sendredirects
= strtoul(buf
, NULL
, 0);
1843 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
1846 if (!system_get_drop_v4_unicast_in_l2_multicast(dev
, buf
, sizeof(buf
))) {
1847 s
->drop_v4_unicast_in_l2_multicast
= strtoul(buf
, NULL
, 0);
1848 s
->flags
|= DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
;
1851 if (!system_get_drop_v6_unicast_in_l2_multicast(dev
, buf
, sizeof(buf
))) {
1852 s
->drop_v6_unicast_in_l2_multicast
= strtoul(buf
, NULL
, 0);
1853 s
->flags
|= DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
;
1856 if (!system_get_drop_gratuitous_arp(dev
, buf
, sizeof(buf
))) {
1857 s
->drop_gratuitous_arp
= strtoul(buf
, NULL
, 0);
1858 s
->flags
|= DEV_OPT_DROP_GRATUITOUS_ARP
;
1861 if (!system_get_drop_unsolicited_na(dev
, buf
, sizeof(buf
))) {
1862 s
->drop_unsolicited_na
= strtoul(buf
, NULL
, 0);
1863 s
->flags
|= DEV_OPT_DROP_UNSOLICITED_NA
;
1866 if (!system_get_arp_accept(dev
, buf
, sizeof(buf
))) {
1867 s
->arp_accept
= strtoul(buf
, NULL
, 0);
1868 s
->flags
|= DEV_OPT_ARP_ACCEPT
;
1873 system_if_apply_settings(struct device
*dev
, struct device_settings
*s
, uint64_t apply_mask
)
1878 apply_mask
&= s
->flags
;
1880 memset(&ifr
, 0, sizeof(ifr
));
1881 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1882 if (apply_mask
& DEV_OPT_MTU
) {
1883 ifr
.ifr_mtu
= s
->mtu
;
1884 if (ioctl(sock_ioctl
, SIOCSIFMTU
, &ifr
) < 0)
1885 s
->flags
&= ~DEV_OPT_MTU
;
1887 if (apply_mask
& DEV_OPT_MTU6
) {
1888 system_update_ipv6_mtu(dev
, s
->mtu6
);
1890 if (apply_mask
& DEV_OPT_TXQUEUELEN
) {
1891 ifr
.ifr_qlen
= s
->txqueuelen
;
1892 if (ioctl(sock_ioctl
, SIOCSIFTXQLEN
, &ifr
) < 0)
1893 s
->flags
&= ~DEV_OPT_TXQUEUELEN
;
1895 if ((apply_mask
& (DEV_OPT_MACADDR
| DEV_OPT_DEFAULT_MACADDR
)) && !dev
->external
) {
1896 ifr
.ifr_hwaddr
.sa_family
= ARPHRD_ETHER
;
1897 memcpy(&ifr
.ifr_hwaddr
.sa_data
, s
->macaddr
, sizeof(s
->macaddr
));
1898 if (ioctl(sock_ioctl
, SIOCSIFHWADDR
, &ifr
) < 0)
1899 s
->flags
&= ~DEV_OPT_MACADDR
;
1901 if (apply_mask
& DEV_OPT_IPV6
)
1902 system_set_disable_ipv6(dev
, s
->ipv6
? "0" : "1");
1903 if (s
->flags
& DEV_OPT_IP6SEGMENTROUTING
& apply_mask
) {
1904 struct device dummy
= {
1907 bool ip6segmentrouting
= device_check_ip6segmentrouting();
1909 system_set_ip6segmentrouting(dev
, s
->ip6segmentrouting
? "1" : "0");
1910 system_set_ip6segmentrouting(&dummy
, ip6segmentrouting
? "1" : "0");
1912 if (apply_mask
& DEV_OPT_PROMISC
) {
1913 if (system_if_flags(dev
->ifname
, s
->promisc
? IFF_PROMISC
: 0,
1914 !s
->promisc
? IFF_PROMISC
: 0) < 0)
1915 s
->flags
&= ~DEV_OPT_PROMISC
;
1917 if (apply_mask
& DEV_OPT_RPFILTER
) {
1918 snprintf(buf
, sizeof(buf
), "%u", s
->rpfilter
);
1919 system_set_rpfilter(dev
, buf
);
1921 if (apply_mask
& DEV_OPT_ACCEPTLOCAL
)
1922 system_set_acceptlocal(dev
, s
->acceptlocal
? "1" : "0");
1923 if (apply_mask
& DEV_OPT_IGMPVERSION
) {
1924 snprintf(buf
, sizeof(buf
), "%u", s
->igmpversion
);
1925 system_set_igmpversion(dev
, buf
);
1927 if (apply_mask
& DEV_OPT_MLDVERSION
) {
1928 snprintf(buf
, sizeof(buf
), "%u", s
->mldversion
);
1929 system_set_mldversion(dev
, buf
);
1931 if (apply_mask
& DEV_OPT_NEIGHREACHABLETIME
) {
1932 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4reachabletime
);
1933 system_set_neigh4reachabletime(dev
, buf
);
1934 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6reachabletime
);
1935 system_set_neigh6reachabletime(dev
, buf
);
1937 if (apply_mask
& DEV_OPT_NEIGHLOCKTIME
) {
1938 snprintf(buf
, sizeof(buf
), "%d", s
->neigh4locktime
);
1939 system_set_neigh4locktime(dev
, buf
);
1941 if (apply_mask
& DEV_OPT_NEIGHGCSTALETIME
) {
1942 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4gcstaletime
);
1943 system_set_neigh4gcstaletime(dev
, buf
);
1944 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6gcstaletime
);
1945 system_set_neigh6gcstaletime(dev
, buf
);
1947 if (apply_mask
& DEV_OPT_DADTRANSMITS
) {
1948 snprintf(buf
, sizeof(buf
), "%u", s
->dadtransmits
);
1949 system_set_dadtransmits(dev
, buf
);
1951 if (apply_mask
& DEV_OPT_MULTICAST
) {
1952 if (system_if_flags(dev
->ifname
, s
->multicast
? IFF_MULTICAST
: 0,
1953 !s
->multicast
? IFF_MULTICAST
: 0) < 0)
1954 s
->flags
&= ~DEV_OPT_MULTICAST
;
1956 if (apply_mask
& DEV_OPT_SENDREDIRECTS
)
1957 system_set_sendredirects(dev
, s
->sendredirects
? "1" : "0");
1958 if (apply_mask
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
)
1959 system_set_drop_v4_unicast_in_l2_multicast(dev
, s
->drop_v4_unicast_in_l2_multicast
? "1" : "0");
1960 if (apply_mask
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
)
1961 system_set_drop_v6_unicast_in_l2_multicast(dev
, s
->drop_v6_unicast_in_l2_multicast
? "1" : "0");
1962 if (apply_mask
& DEV_OPT_DROP_GRATUITOUS_ARP
)
1963 system_set_drop_gratuitous_arp(dev
, s
->drop_gratuitous_arp
? "1" : "0");
1964 if (apply_mask
& DEV_OPT_DROP_UNSOLICITED_NA
)
1965 system_set_drop_unsolicited_na(dev
, s
->drop_unsolicited_na
? "1" : "0");
1966 if (apply_mask
& DEV_OPT_ARP_ACCEPT
)
1967 system_set_arp_accept(dev
, s
->arp_accept
? "1" : "0");
1968 system_set_ethtool_settings(dev
, s
);
1971 int system_if_up(struct device
*dev
)
1973 return system_if_flags(dev
->ifname
, IFF_UP
, 0);
1976 int system_if_down(struct device
*dev
)
1978 return system_if_flags(dev
->ifname
, 0, IFF_UP
);
1981 struct if_check_data
{
1987 #ifndef IFF_LOWER_UP
1988 #define IFF_LOWER_UP 0x10000
1991 static int cb_if_check_valid(struct nl_msg
*msg
, void *arg
)
1993 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
1994 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
1995 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1997 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
2000 if (chk
->dev
->type
== &simple_device_type
)
2001 device_set_present(chk
->dev
, ifi
->ifi_index
> 0 ? true : false);
2002 device_set_link(chk
->dev
, ifi
->ifi_flags
& IFF_LOWER_UP
? true : false);
2007 static int cb_if_check_ack(struct nl_msg
*msg
, void *arg
)
2009 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
2014 static int cb_if_check_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
2016 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
2018 if (chk
->dev
->type
== &simple_device_type
)
2019 device_set_present(chk
->dev
, false);
2020 device_set_link(chk
->dev
, false);
2021 chk
->pending
= err
->error
;
2026 struct bridge_vlan_check_data
{
2027 struct device
*check_dev
;
2033 static void bridge_vlan_check_port(struct bridge_vlan_check_data
*data
,
2034 struct bridge_vlan_port
*port
,
2035 struct bridge_vlan_info
*vinfo
)
2037 uint16_t flags
= 0, diff
, mask
;
2039 if (port
->flags
& BRVLAN_F_PVID
)
2040 flags
|= BRIDGE_VLAN_INFO_PVID
;
2041 if (port
->flags
& BRVLAN_F_UNTAGGED
)
2042 flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
2044 diff
= vinfo
->flags
^ flags
;
2045 mask
= BRVLAN_F_UNTAGGED
| (flags
& BRIDGE_VLAN_INFO_PVID
);
2048 data
->pending
= false;
2054 static void bridge_vlan_check_attr(struct bridge_vlan_check_data
*data
,
2055 struct rtattr
*attr
)
2057 struct bridge_vlan_hotplug_port
*port
;
2058 struct bridge_vlan_info
*vinfo
;
2059 struct bridge_vlan
*vlan
;
2061 int rem
= RTA_PAYLOAD(attr
);
2064 for (cur
= RTA_DATA(attr
); RTA_OK(cur
, rem
); cur
= RTA_NEXT(cur
, rem
)) {
2065 if (cur
->rta_type
!= IFLA_BRIDGE_VLAN_INFO
)
2068 vinfo
= RTA_DATA(cur
);
2069 vlan
= vlist_find(&data
->check_dev
->vlans
, &vinfo
->vid
, vlan
, node
);
2072 data
->pending
= false;
2076 for (i
= 0; i
< vlan
->n_ports
; i
++)
2077 if (!vlan
->ports
[i
].check
)
2078 bridge_vlan_check_port(data
, &vlan
->ports
[i
], vinfo
);
2080 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
)
2081 if (!port
->port
.check
)
2082 bridge_vlan_check_port(data
, &port
->port
, vinfo
);
2086 static int bridge_vlan_check_cb(struct nl_msg
*msg
, void *arg
)
2088 struct bridge_vlan_check_data
*data
= arg
;
2089 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
2090 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
2091 struct rtattr
*attr
;
2094 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
2097 if (ifi
->ifi_family
!= AF_BRIDGE
)
2100 if (ifi
->ifi_index
!= data
->ifindex
)
2103 attr
= IFLA_RTA(ifi
);
2104 rem
= nh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*ifi
));
2105 while (RTA_OK(attr
, rem
)) {
2106 if (attr
->rta_type
== IFLA_AF_SPEC
)
2107 bridge_vlan_check_attr(data
, attr
);
2109 attr
= RTA_NEXT(attr
, rem
);
2115 static int bridge_vlan_ack_cb(struct nl_msg
*msg
, void *arg
)
2117 struct bridge_vlan_check_data
*data
= arg
;
2118 data
->pending
= false;
2122 static int bridge_vlan_error_cb(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
2124 struct bridge_vlan_check_data
*data
= arg
;
2125 data
->pending
= false;
2129 int system_bridge_vlan_check(struct device
*dev
, char *ifname
)
2131 struct bridge_vlan_check_data data
= {
2133 .ifindex
= if_nametoindex(ifname
),
2137 static struct ifinfomsg ifi
= {
2138 .ifi_family
= AF_BRIDGE
2140 static struct rtattr ext_req
= {
2141 .rta_type
= IFLA_EXT_MASK
,
2142 .rta_len
= RTA_LENGTH(sizeof(uint32_t)),
2144 uint32_t filter
= RTEXT_FILTER_BRVLAN
;
2145 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
2146 struct bridge_vlan
*vlan
;
2153 msg
= nlmsg_alloc_simple(RTM_GETLINK
, NLM_F_DUMP
);
2155 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
2156 nlmsg_append(msg
, &ext_req
, sizeof(ext_req
), NLMSG_ALIGNTO
) ||
2157 nlmsg_append(msg
, &filter
, sizeof(filter
), 0))
2160 vlist_for_each_element(&dev
->vlans
, vlan
, node
) {
2161 struct bridge_vlan_hotplug_port
*port
;
2163 for (i
= 0; i
< vlan
->n_ports
; i
++) {
2164 if (!strcmp(vlan
->ports
[i
].ifname
, ifname
))
2165 vlan
->ports
[i
].check
= 0;
2167 vlan
->ports
[i
].check
= -1;
2170 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
2171 if (!strcmp(port
->port
.ifname
, ifname
))
2172 port
->port
.check
= 0;
2174 port
->port
.check
= -1;
2178 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, bridge_vlan_check_cb
, &data
);
2179 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, bridge_vlan_ack_cb
, &data
);
2180 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, bridge_vlan_ack_cb
, &data
);
2181 nl_cb_err(cb
, NL_CB_CUSTOM
, bridge_vlan_error_cb
, &data
);
2183 if (nl_send_auto_complete(sock_rtnl
, msg
) < 0)
2187 while (data
.pending
)
2188 nl_recvmsgs(sock_rtnl
, cb
);
2190 vlist_for_each_element(&dev
->vlans
, vlan
, node
) {
2191 struct bridge_vlan_hotplug_port
*port
;
2193 for (i
= 0; i
< vlan
->n_ports
; i
++) {
2194 if (!vlan
->ports
[i
].check
) {
2200 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
2201 if (!port
->port
.check
) {
2217 int system_if_check(struct device
*dev
)
2219 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
2221 struct ifinfomsg ifi
= {
2222 .ifi_family
= AF_UNSPEC
,
2225 struct if_check_data chk
= {
2234 msg
= nlmsg_alloc_simple(RTM_GETLINK
, 0);
2238 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
2239 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
2242 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_check_valid
, &chk
);
2243 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_check_ack
, &chk
);
2244 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_check_error
, &chk
);
2246 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
2250 while (chk
.pending
> 0)
2251 nl_recvmsgs(sock_rtnl
, cb
);
2263 system_if_get_parent(struct device
*dev
)
2265 char buf
[64], *devname
;
2266 int ifindex
, iflink
;
2268 if (system_get_dev_sysfs("iflink", dev
->ifname
, buf
, sizeof(buf
)) < 0)
2271 iflink
= strtoul(buf
, NULL
, 0);
2272 ifindex
= system_if_resolve(dev
);
2273 if (!iflink
|| iflink
== ifindex
)
2276 devname
= if_indextoname(iflink
, buf
);
2280 return device_get(devname
, true);
2284 read_string_file(int dir_fd
, const char *file
, char *buf
, int len
)
2290 fd
= openat(dir_fd
, file
, O_RDONLY
);
2295 len
= read(fd
, buf
, len
- 1);
2299 } else if (len
> 0) {
2302 c
= strchr(buf
, '\n');
2315 read_uint64_file(int dir_fd
, const char *file
, uint64_t *val
)
2320 ret
= read_string_file(dir_fd
, file
, buf
, sizeof(buf
));
2322 *val
= strtoull(buf
, NULL
, 0);
2327 /* Assume advertised flags == supported flags */
2328 static const struct {
2331 } ethtool_link_modes
[] = {
2332 { ADVERTISED_10baseT_Half
, "10baseT-H" },
2333 { ADVERTISED_10baseT_Full
, "10baseT-F" },
2334 { ADVERTISED_100baseT_Half
, "100baseT-H" },
2335 { ADVERTISED_100baseT_Full
, "100baseT-F" },
2336 { ADVERTISED_1000baseT_Half
, "1000baseT-H" },
2337 { ADVERTISED_1000baseT_Full
, "1000baseT-F" },
2338 { ADVERTISED_1000baseKX_Full
, "1000baseKX-F" },
2339 { ADVERTISED_2500baseX_Full
, "2500baseX-F" },
2340 { ADVERTISED_10000baseT_Full
, "10000baseT-F" },
2341 { ADVERTISED_10000baseKX4_Full
, "10000baseKX4-F" },
2342 { ADVERTISED_10000baseKR_Full
, "10000baseKR-F" },
2343 { ADVERTISED_20000baseMLD2_Full
, "20000baseMLD2-F" },
2344 { ADVERTISED_20000baseKR2_Full
, "20000baseKR2-F" },
2345 { ADVERTISED_40000baseKR4_Full
, "40000baseKR4-F" },
2346 { ADVERTISED_40000baseCR4_Full
, "40000baseCR4-F" },
2347 { ADVERTISED_40000baseSR4_Full
, "40000baseSR4-F" },
2348 { ADVERTISED_40000baseLR4_Full
, "40000baseLR4-F" },
2349 #ifdef ADVERTISED_56000baseKR4_Full
2350 { ADVERTISED_56000baseKR4_Full
, "56000baseKR4-F" },
2351 { ADVERTISED_56000baseCR4_Full
, "56000baseCR4-F" },
2352 { ADVERTISED_56000baseSR4_Full
, "56000baseSR4-F" },
2353 { ADVERTISED_56000baseLR4_Full
, "56000baseLR4-F" },
2357 static void system_add_link_modes(struct blob_buf
*b
, __u32 mask
)
2360 for (i
= 0; i
< ARRAY_SIZE(ethtool_link_modes
); i
++) {
2361 if (mask
& ethtool_link_modes
[i
].mask
)
2362 blobmsg_add_string(b
, NULL
, ethtool_link_modes
[i
].name
);
2367 system_if_force_external(const char *ifname
)
2371 return stat(dev_sysfs_path(ifname
, "phy80211"), &s
) == 0;
2375 system_netdevtype_name(unsigned short dev_type
)
2379 for (i
= 0; i
< ARRAY_SIZE(netdev_types
); i
++) {
2380 if (netdev_types
[i
].id
== dev_type
)
2381 return netdev_types
[i
].name
;
2384 /* the last key is used by default */
2385 i
= ARRAY_SIZE(netdev_types
) - 1;
2387 return netdev_types
[i
].name
;
2391 system_add_devtype(struct blob_buf
*b
, const char *ifname
)
2396 if (!system_get_dev_sysfs("uevent", ifname
, buf
, sizeof(buf
))) {
2397 const char *info
= "DEVTYPE=";
2398 char *context
= NULL
;
2399 const char *line
= strtok_r(buf
, "\r\n", &context
);
2401 while (line
!= NULL
) {
2402 char *index
= strstr(line
, info
);
2404 if (index
!= NULL
) {
2405 blobmsg_add_string(b
, "devtype", index
+ strlen(info
));
2410 line
= strtok_r(NULL
, "\r\n", &context
);
2415 unsigned short number
= 0;
2416 const char *name
= NULL
;
2418 if (!system_get_dev_sysfs("type", ifname
, buf
, sizeof(buf
))) {
2419 number
= strtoul(buf
, NULL
, 0);
2420 name
= system_netdevtype_name(number
);
2421 blobmsg_add_string(b
, "devtype", name
);
2426 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
2429 ethtool_feature_count(const char *ifname
)
2432 struct ethtool_sset_info hdr
;
2436 .cmd
= ETHTOOL_GSSET_INFO
,
2437 .sset_mask
= 1 << ETH_SS_FEATURES
2441 struct ifreq ifr
= {
2442 .ifr_data
= (void *)&req
2445 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
2447 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0)
2450 if (!req
.hdr
.sset_mask
)
2457 ethtool_feature_index(const char *ifname
, const char *keyname
)
2459 struct ethtool_gstrings
*feature_names
;
2460 struct ifreq ifr
= { 0 };
2464 n_features
= ethtool_feature_count(ifname
);
2466 if (n_features
<= 0)
2469 feature_names
= calloc(1, sizeof(*feature_names
) + n_features
* ETH_GSTRING_LEN
);
2474 feature_names
->cmd
= ETHTOOL_GSTRINGS
;
2475 feature_names
->string_set
= ETH_SS_FEATURES
;
2476 feature_names
->len
= n_features
;
2478 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
2479 ifr
.ifr_data
= (void *)feature_names
;
2481 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0) {
2482 free(feature_names
);
2487 for (i
= 0; i
< feature_names
->len
; i
++)
2488 if (!strcmp((char *)&feature_names
->data
[i
* ETH_GSTRING_LEN
], keyname
))
2491 if (i
>= feature_names
->len
)
2494 free(feature_names
);
2500 ethtool_feature_value(const char *ifname
, const char *keyname
)
2502 struct ethtool_get_features_block
*feature_block
;
2503 struct ethtool_gfeatures
*feature_values
;
2504 struct ifreq ifr
= { 0 };
2505 int32_t feature_idx
;
2508 feature_idx
= ethtool_feature_index(ifname
, keyname
);
2510 if (feature_idx
< 0)
2513 feature_values
= calloc(1,
2514 sizeof(*feature_values
) +
2515 sizeof(feature_values
->features
[0]) * DIV_ROUND_UP(feature_idx
, 32));
2517 if (!feature_values
)
2520 feature_values
->cmd
= ETHTOOL_GFEATURES
;
2521 feature_values
->size
= DIV_ROUND_UP(feature_idx
, 32);
2523 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
2524 ifr
.ifr_data
= (void *)feature_values
;
2526 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0) {
2527 free(feature_values
);
2532 feature_block
= &feature_values
->features
[feature_idx
/ 32];
2533 active
= feature_block
->active
& (1U << feature_idx
% 32);
2535 free(feature_values
);
2541 system_if_dump_info(struct device
*dev
, struct blob_buf
*b
)
2543 struct ethtool_cmd ecmd
;
2548 memset(&ecmd
, 0, sizeof(ecmd
));
2549 memset(&ifr
, 0, sizeof(ifr
));
2550 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2551 ifr
.ifr_data
= (caddr_t
) &ecmd
;
2552 ecmd
.cmd
= ETHTOOL_GSET
;
2554 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) == 0) {
2555 c
= blobmsg_open_array(b
, "link-advertising");
2556 system_add_link_modes(b
, ecmd
.advertising
);
2557 blobmsg_close_array(b
, c
);
2559 c
= blobmsg_open_array(b
, "link-partner-advertising");
2560 system_add_link_modes(b
, ecmd
.lp_advertising
);
2561 blobmsg_close_array(b
, c
);
2563 c
= blobmsg_open_array(b
, "link-supported");
2564 system_add_link_modes(b
, ecmd
.supported
);
2565 blobmsg_close_array(b
, c
);
2567 s
= blobmsg_alloc_string_buffer(b
, "speed", 8);
2568 snprintf(s
, 8, "%d%c", ethtool_cmd_speed(&ecmd
),
2569 ecmd
.duplex
== DUPLEX_HALF
? 'H' : 'F');
2570 blobmsg_add_string_buffer(b
);
2572 blobmsg_add_u8(b
, "autoneg", !!ecmd
.autoneg
);
2575 blobmsg_add_u8(b
, "hw-tc-offload",
2576 ethtool_feature_value(dev
->ifname
, "hw-tc-offload"));
2578 system_add_devtype(b
, dev
->ifname
);
2584 system_if_dump_stats(struct device
*dev
, struct blob_buf
*b
)
2586 const char *const counters
[] = {
2587 "collisions", "rx_frame_errors", "tx_compressed",
2588 "multicast", "rx_length_errors", "tx_dropped",
2589 "rx_bytes", "rx_missed_errors", "tx_errors",
2590 "rx_compressed", "rx_over_errors", "tx_fifo_errors",
2591 "rx_crc_errors", "rx_packets", "tx_heartbeat_errors",
2592 "rx_dropped", "tx_aborted_errors", "tx_packets",
2593 "rx_errors", "tx_bytes", "tx_window_errors",
2594 "rx_fifo_errors", "tx_carrier_errors",
2600 stats_dir
= open(dev_sysfs_path(dev
->ifname
, "statistics"), O_DIRECTORY
);
2604 for (i
= 0; i
< ARRAY_SIZE(counters
); i
++)
2605 if (read_uint64_file(stats_dir
, counters
[i
], &val
))
2606 blobmsg_add_u64(b
, counters
[i
], val
);
2612 static int system_addr(struct device
*dev
, struct device_addr
*addr
, int cmd
)
2614 bool v4
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
);
2615 int alen
= v4
? 4 : 16;
2616 unsigned int flags
= 0;
2617 struct ifaddrmsg ifa
= {
2618 .ifa_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2619 .ifa_prefixlen
= addr
->mask
,
2620 .ifa_index
= dev
->ifindex
,
2624 if (cmd
== RTM_NEWADDR
)
2625 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
2627 msg
= nlmsg_alloc_simple(cmd
, flags
);
2631 nlmsg_append(msg
, &ifa
, sizeof(ifa
), 0);
2632 nla_put(msg
, IFA_LOCAL
, alen
, &addr
->addr
);
2634 if (addr
->broadcast
)
2635 nla_put_u32(msg
, IFA_BROADCAST
, addr
->broadcast
);
2636 if (addr
->point_to_point
)
2637 nla_put_u32(msg
, IFA_ADDRESS
, addr
->point_to_point
);
2639 time_t now
= system_get_rtime();
2640 struct ifa_cacheinfo cinfo
= {0xffffffffU
, 0xffffffffU
, 0, 0};
2642 if (addr
->preferred_until
) {
2643 int64_t preferred
= addr
->preferred_until
- now
;
2646 else if (preferred
> UINT32_MAX
)
2647 preferred
= UINT32_MAX
;
2649 cinfo
.ifa_prefered
= preferred
;
2652 if (addr
->valid_until
) {
2653 int64_t valid
= addr
->valid_until
- now
;
2658 else if (valid
> UINT32_MAX
)
2661 cinfo
.ifa_valid
= valid
;
2664 nla_put(msg
, IFA_CACHEINFO
, sizeof(cinfo
), &cinfo
);
2666 if (cmd
== RTM_NEWADDR
&& (addr
->flags
& DEVADDR_OFFLINK
))
2667 nla_put_u32(msg
, IFA_FLAGS
, IFA_F_NOPREFIXROUTE
);
2670 return system_rtnl_call(msg
);
2673 int system_add_address(struct device
*dev
, struct device_addr
*addr
)
2675 return system_addr(dev
, addr
, RTM_NEWADDR
);
2678 int system_del_address(struct device
*dev
, struct device_addr
*addr
)
2680 return system_addr(dev
, addr
, RTM_DELADDR
);
2683 static int system_neigh(struct device
*dev
, struct device_neighbor
*neighbor
, int cmd
)
2685 int alen
= ((neighbor
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
2686 unsigned int flags
= 0;
2687 struct ndmsg ndm
= {
2688 .ndm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2689 .ndm_ifindex
= dev
->ifindex
,
2690 .ndm_state
= NUD_PERMANENT
,
2691 .ndm_flags
= (neighbor
->proxy
? NTF_PROXY
: 0) | (neighbor
->router
? NTF_ROUTER
: 0),
2695 if (cmd
== RTM_NEWNEIGH
)
2696 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
2698 msg
= nlmsg_alloc_simple(cmd
, flags
);
2703 nlmsg_append(msg
, &ndm
, sizeof(ndm
), 0);
2705 nla_put(msg
, NDA_DST
, alen
, &neighbor
->addr
);
2706 if (neighbor
->flags
& DEVNEIGH_MAC
)
2707 nla_put(msg
, NDA_LLADDR
, sizeof(neighbor
->macaddr
), &neighbor
->macaddr
);
2710 return system_rtnl_call(msg
);
2713 int system_add_neighbor(struct device
*dev
, struct device_neighbor
*neighbor
)
2715 return system_neigh(dev
, neighbor
, RTM_NEWNEIGH
);
2718 int system_del_neighbor(struct device
*dev
, struct device_neighbor
*neighbor
)
2720 return system_neigh(dev
, neighbor
, RTM_DELNEIGH
);
2723 static int system_rt(struct device
*dev
, struct device_route
*route
, int cmd
)
2725 int alen
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
2727 unsigned int flags
= 0;
2730 have_gw
= !!route
->nexthop
.in
.s_addr
;
2732 have_gw
= route
->nexthop
.in6
.s6_addr32
[0] ||
2733 route
->nexthop
.in6
.s6_addr32
[1] ||
2734 route
->nexthop
.in6
.s6_addr32
[2] ||
2735 route
->nexthop
.in6
.s6_addr32
[3];
2737 unsigned int table
= (route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))
2738 ? route
->table
: RT_TABLE_MAIN
;
2740 struct rtmsg rtm
= {
2741 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2742 .rtm_dst_len
= route
->mask
,
2743 .rtm_src_len
= route
->sourcemask
,
2744 .rtm_table
= (table
< 256) ? table
: RT_TABLE_UNSPEC
,
2745 .rtm_protocol
= (route
->flags
& DEVROUTE_PROTO
) ? route
->proto
: RTPROT_STATIC
,
2746 .rtm_scope
= RT_SCOPE_NOWHERE
,
2747 .rtm_type
= (cmd
== RTM_DELROUTE
) ? 0: RTN_UNICAST
,
2748 .rtm_flags
= (route
->flags
& DEVROUTE_ONLINK
) ? RTNH_F_ONLINK
: 0,
2752 if (cmd
== RTM_NEWROUTE
) {
2753 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
2755 if (!dev
) { /* Add null-route */
2756 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
2757 rtm
.rtm_type
= RTN_UNREACHABLE
;
2760 rtm
.rtm_scope
= (have_gw
) ? RT_SCOPE_UNIVERSE
: RT_SCOPE_LINK
;
2763 if (route
->flags
& DEVROUTE_TYPE
) {
2764 rtm
.rtm_type
= route
->type
;
2765 if (!(route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))) {
2766 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_BROADCAST
||
2767 rtm
.rtm_type
== RTN_NAT
|| rtm
.rtm_type
== RTN_ANYCAST
)
2768 rtm
.rtm_table
= RT_TABLE_LOCAL
;
2771 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_NAT
) {
2772 rtm
.rtm_scope
= RT_SCOPE_HOST
;
2773 } else if (rtm
.rtm_type
== RTN_BROADCAST
|| rtm
.rtm_type
== RTN_MULTICAST
||
2774 rtm
.rtm_type
== RTN_ANYCAST
) {
2775 rtm
.rtm_scope
= RT_SCOPE_LINK
;
2776 } else if (rtm
.rtm_type
== RTN_BLACKHOLE
|| rtm
.rtm_type
== RTN_UNREACHABLE
||
2777 rtm
.rtm_type
== RTN_PROHIBIT
|| rtm
.rtm_type
== RTN_FAILED_POLICY
||
2778 rtm
.rtm_type
== RTN_THROW
) {
2779 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
2784 msg
= nlmsg_alloc_simple(cmd
, flags
);
2788 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
2791 nla_put(msg
, RTA_DST
, alen
, &route
->addr
);
2793 if (route
->sourcemask
) {
2794 if (rtm
.rtm_family
== AF_INET
)
2795 nla_put(msg
, RTA_PREFSRC
, alen
, &route
->source
);
2797 nla_put(msg
, RTA_SRC
, alen
, &route
->source
);
2800 if (route
->metric
> 0)
2801 nla_put_u32(msg
, RTA_PRIORITY
, route
->metric
);
2804 nla_put(msg
, RTA_GATEWAY
, alen
, &route
->nexthop
);
2807 nla_put_u32(msg
, RTA_OIF
, dev
->ifindex
);
2810 nla_put_u32(msg
, RTA_TABLE
, table
);
2812 if (route
->flags
& DEVROUTE_MTU
) {
2813 struct nlattr
*metrics
;
2815 if (!(metrics
= nla_nest_start(msg
, RTA_METRICS
)))
2816 goto nla_put_failure
;
2818 nla_put_u32(msg
, RTAX_MTU
, route
->mtu
);
2820 nla_nest_end(msg
, metrics
);
2823 return system_rtnl_call(msg
);
2830 int system_add_route(struct device
*dev
, struct device_route
*route
)
2832 return system_rt(dev
, route
, RTM_NEWROUTE
);
2835 int system_del_route(struct device
*dev
, struct device_route
*route
)
2837 return system_rt(dev
, route
, RTM_DELROUTE
);
2840 int system_flush_routes(void)
2842 const char *names
[] = { "ipv4", "ipv6" };
2846 for (i
= 0; i
< ARRAY_SIZE(names
); i
++) {
2847 snprintf(dev_buf
, sizeof(dev_buf
), "%s/sys/net/%s/route/flush", proc_path
, names
[i
]);
2848 fd
= open(dev_buf
, O_WRONLY
);
2852 if (write(fd
, "-1", 2)) {}
2858 bool system_resolve_rt_type(const char *type
, unsigned int *id
)
2860 return system_rtn_aton(type
, id
);
2863 bool system_resolve_rt_proto(const char *type
, unsigned int *id
)
2867 unsigned int n
, proto
= 256;
2868 n
= strtoul(type
, &e
, 0);
2869 if (!*e
&& e
!= type
)
2871 else if (!strcmp(type
, "unspec"))
2872 proto
= RTPROT_UNSPEC
;
2873 else if (!strcmp(type
, "kernel"))
2874 proto
= RTPROT_KERNEL
;
2875 else if (!strcmp(type
, "boot"))
2876 proto
= RTPROT_BOOT
;
2877 else if (!strcmp(type
, "static"))
2878 proto
= RTPROT_STATIC
;
2879 else if ((f
= fopen("/etc/iproute2/rt_protos", "r")) != NULL
) {
2880 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
) {
2881 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2884 n
= strtoul(e
, NULL
, 10);
2885 e
= strtok(NULL
, " \t\n");
2887 if (e
&& !strcmp(e
, type
)) {
2902 bool system_resolve_rt_table(const char *name
, unsigned int *id
)
2906 unsigned int n
, table
= RT_TABLE_UNSPEC
;
2908 /* first try to parse table as number */
2909 if ((n
= strtoul(name
, &e
, 0)) > 0 && !*e
)
2912 /* handle well known aliases */
2913 else if (!strcmp(name
, "default"))
2914 table
= RT_TABLE_DEFAULT
;
2915 else if (!strcmp(name
, "main"))
2916 table
= RT_TABLE_MAIN
;
2917 else if (!strcmp(name
, "local"))
2918 table
= RT_TABLE_LOCAL
;
2920 /* try to look up name in /etc/iproute2/rt_tables */
2921 else if ((f
= fopen("/etc/iproute2/rt_tables", "r")) != NULL
)
2923 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
)
2925 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
2928 n
= strtoul(e
, NULL
, 10);
2929 e
= strtok(NULL
, " \t\n");
2931 if (e
&& !strcmp(e
, name
))
2941 if (table
== RT_TABLE_UNSPEC
)
2948 bool system_is_default_rt_table(unsigned int id
)
2950 return (id
== RT_TABLE_MAIN
);
2953 bool system_resolve_rpfilter(const char *filter
, unsigned int *id
)
2958 if (!strcmp(filter
, "strict"))
2960 else if (!strcmp(filter
, "loose"))
2963 n
= strtoul(filter
, &e
, 0);
2964 if (*e
|| e
== filter
|| n
> 2)
2972 static int system_iprule(struct iprule
*rule
, int cmd
)
2974 int alen
= ((rule
->flags
& IPRULE_FAMILY
) == IPRULE_INET4
) ? 4 : 16;
2977 struct rtmsg rtm
= {
2978 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
2979 .rtm_protocol
= RTPROT_STATIC
,
2980 .rtm_scope
= RT_SCOPE_UNIVERSE
,
2981 .rtm_table
= RT_TABLE_UNSPEC
,
2982 .rtm_type
= RTN_UNSPEC
,
2986 if (cmd
== RTM_NEWRULE
)
2987 rtm
.rtm_type
= RTN_UNICAST
;
2990 rtm
.rtm_flags
|= FIB_RULE_INVERT
;
2992 if (rule
->flags
& IPRULE_SRC
)
2993 rtm
.rtm_src_len
= rule
->src_mask
;
2995 if (rule
->flags
& IPRULE_DEST
)
2996 rtm
.rtm_dst_len
= rule
->dest_mask
;
2998 if (rule
->flags
& IPRULE_TOS
)
2999 rtm
.rtm_tos
= rule
->tos
;
3001 if (rule
->flags
& IPRULE_LOOKUP
) {
3002 if (rule
->lookup
< 256)
3003 rtm
.rtm_table
= rule
->lookup
;
3006 if (rule
->flags
& IPRULE_ACTION
)
3007 rtm
.rtm_type
= rule
->action
;
3008 else if (rule
->flags
& IPRULE_GOTO
)
3009 rtm
.rtm_type
= FR_ACT_GOTO
;
3010 else if (!(rule
->flags
& (IPRULE_LOOKUP
| IPRULE_ACTION
| IPRULE_GOTO
)))
3011 rtm
.rtm_type
= FR_ACT_NOP
;
3013 msg
= nlmsg_alloc_simple(cmd
, NLM_F_REQUEST
);
3018 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
3020 if (rule
->flags
& IPRULE_IN
)
3021 nla_put(msg
, FRA_IFNAME
, strlen(rule
->in_dev
) + 1, rule
->in_dev
);
3023 if (rule
->flags
& IPRULE_OUT
)
3024 nla_put(msg
, FRA_OIFNAME
, strlen(rule
->out_dev
) + 1, rule
->out_dev
);
3026 if (rule
->flags
& IPRULE_SRC
)
3027 nla_put(msg
, FRA_SRC
, alen
, &rule
->src_addr
);
3029 if (rule
->flags
& IPRULE_DEST
)
3030 nla_put(msg
, FRA_DST
, alen
, &rule
->dest_addr
);
3032 if (rule
->flags
& IPRULE_PRIORITY
)
3033 nla_put_u32(msg
, FRA_PRIORITY
, rule
->priority
);
3034 else if (cmd
== RTM_NEWRULE
)
3035 nla_put_u32(msg
, FRA_PRIORITY
, rule
->order
);
3037 if (rule
->flags
& IPRULE_FWMARK
)
3038 nla_put_u32(msg
, FRA_FWMARK
, rule
->fwmark
);
3040 if (rule
->flags
& IPRULE_FWMASK
)
3041 nla_put_u32(msg
, FRA_FWMASK
, rule
->fwmask
);
3043 if (rule
->flags
& IPRULE_LOOKUP
) {
3044 if (rule
->lookup
>= 256)
3045 nla_put_u32(msg
, FRA_TABLE
, rule
->lookup
);
3048 if (rule
->flags
& IPRULE_SUP_PREFIXLEN
)
3049 nla_put_u32(msg
, FRA_SUPPRESS_PREFIXLEN
, rule
->sup_prefixlen
);
3051 if (rule
->flags
& IPRULE_UIDRANGE
) {
3052 struct fib_rule_uid_range uidrange
= {
3053 .start
= rule
->uidrange_start
,
3054 .end
= rule
->uidrange_end
3057 nla_put(msg
, FRA_UID_RANGE
, sizeof(uidrange
), &uidrange
);
3060 if (rule
->flags
& IPRULE_GOTO
)
3061 nla_put_u32(msg
, FRA_GOTO
, rule
->gotoid
);
3063 return system_rtnl_call(msg
);
3066 int system_add_iprule(struct iprule
*rule
)
3068 return system_iprule(rule
, RTM_NEWRULE
);
3071 int system_del_iprule(struct iprule
*rule
)
3073 return system_iprule(rule
, RTM_DELRULE
);
3076 int system_flush_iprules(void)
3081 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET
);
3082 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET6
);
3084 memset(&rule
, 0, sizeof(rule
));
3087 rule
.flags
= IPRULE_INET4
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
3090 rule
.lookup
= RT_TABLE_LOCAL
;
3091 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3093 rule
.priority
= 32766;
3094 rule
.lookup
= RT_TABLE_MAIN
;
3095 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3097 rule
.priority
= 32767;
3098 rule
.lookup
= RT_TABLE_DEFAULT
;
3099 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3102 rule
.flags
= IPRULE_INET6
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
3105 rule
.lookup
= RT_TABLE_LOCAL
;
3106 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3108 rule
.priority
= 32766;
3109 rule
.lookup
= RT_TABLE_MAIN
;
3110 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3115 bool system_resolve_iprule_action(const char *action
, unsigned int *id
)
3117 return system_rtn_aton(action
, id
);
3120 time_t system_get_rtime(void)
3125 if (clock_gettime(CLOCK_MONOTONIC
, &ts
) == 0)
3128 if (gettimeofday(&tv
, NULL
) == 0)
3135 #define IP_DF 0x4000
3138 static int tunnel_ioctl(const char *name
, int cmd
, void *p
)
3142 memset(&ifr
, 0, sizeof(ifr
));
3143 strncpy(ifr
.ifr_name
, name
, sizeof(ifr
.ifr_name
) - 1);
3144 ifr
.ifr_ifru
.ifru_data
= p
;
3145 return ioctl(sock_ioctl
, cmd
, &ifr
);
3148 #ifdef IFLA_IPTUN_MAX
3149 static int system_add_ip6_tunnel(const char *name
, const unsigned int link
,
3150 struct blob_attr
**tb
)
3152 struct nl_msg
*nlm
= nlmsg_alloc_simple(RTM_NEWLINK
,
3153 NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3154 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
};
3155 struct blob_attr
*cur
;
3156 int ret
= 0, ttl
= 0;
3161 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3162 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3165 nla_put_u32(nlm
, IFLA_LINK
, link
);
3167 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3173 nla_put_string(nlm
, IFLA_INFO_KIND
, "ip6tnl");
3174 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3181 nla_put_u32(nlm
, IFLA_IPTUN_LINK
, link
);
3183 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3184 ttl
= blobmsg_get_u32(cur
);
3186 nla_put_u8(nlm
, IFLA_IPTUN_PROTO
, IPPROTO_IPIP
);
3187 nla_put_u8(nlm
, IFLA_IPTUN_TTL
, (ttl
) ? ttl
: 64);
3189 struct in6_addr in6buf
;
3190 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3191 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3195 nla_put(nlm
, IFLA_IPTUN_LOCAL
, sizeof(in6buf
), &in6buf
);
3198 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3199 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3203 nla_put(nlm
, IFLA_IPTUN_REMOTE
, sizeof(in6buf
), &in6buf
);
3206 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3207 struct blob_attr
*tb_data
[__IPIP6_DATA_ATTR_MAX
];
3208 uint32_t tun_flags
= IP6_TNL_F_IGN_ENCAP_LIMIT
;
3210 blobmsg_parse(ipip6_data_attr_list
.params
, __IPIP6_DATA_ATTR_MAX
, tb_data
,
3211 blobmsg_data(cur
), blobmsg_len(cur
));
3213 if ((cur
= tb_data
[IPIP6_DATA_ENCAPLIMIT
])) {
3214 char *str
= blobmsg_get_string(cur
);
3216 if (strcmp(str
, "ignore")) {
3218 unsigned encap_limit
= strtoul(str
, &e
, 0);
3220 if (e
== str
|| *e
|| encap_limit
> 255) {
3225 nla_put_u8(nlm
, IFLA_IPTUN_ENCAP_LIMIT
, encap_limit
);
3226 tun_flags
&= ~IP6_TNL_F_IGN_ENCAP_LIMIT
;
3230 #ifdef IFLA_IPTUN_FMR_MAX
3231 if ((cur
= tb_data
[IPIP6_DATA_FMRS
])) {
3232 struct blob_attr
*rcur
;
3233 unsigned rrem
, fmrcnt
= 0;
3234 struct nlattr
*fmrs
= nla_nest_start(nlm
, IFLA_IPTUN_FMRS
);
3241 blobmsg_for_each_attr(rcur
, cur
, rrem
) {
3242 struct blob_attr
*tb_fmr
[__FMR_DATA_ATTR_MAX
], *tb_cur
;
3243 struct in6_addr ip6prefix
;
3244 struct in_addr ip4prefix
;
3245 unsigned ip4len
, ip6len
, ealen
, offset
;
3247 blobmsg_parse(fmr_data_attr_list
.params
, __FMR_DATA_ATTR_MAX
, tb_fmr
,
3248 blobmsg_data(rcur
), blobmsg_len(rcur
));
3250 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX6
]) ||
3251 !parse_ip_and_netmask(AF_INET6
,
3252 blobmsg_data(tb_cur
), &ip6prefix
,
3258 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX4
]) ||
3259 !parse_ip_and_netmask(AF_INET
,
3260 blobmsg_data(tb_cur
), &ip4prefix
,
3266 if (!(tb_cur
= tb_fmr
[FMR_DATA_EALEN
])) {
3270 ealen
= blobmsg_get_u32(tb_cur
);
3272 if (!(tb_cur
= tb_fmr
[FMR_DATA_OFFSET
])) {
3276 offset
= blobmsg_get_u32(tb_cur
);
3278 struct nlattr
*rule
= nla_nest_start(nlm
, ++fmrcnt
);
3284 nla_put(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX
, sizeof(ip6prefix
), &ip6prefix
);
3285 nla_put(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX
, sizeof(ip4prefix
), &ip4prefix
);
3286 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX_LEN
, ip6len
);
3287 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX_LEN
, ip4len
);
3288 nla_put_u8(nlm
, IFLA_IPTUN_FMR_EA_LEN
, ealen
);
3289 nla_put_u8(nlm
, IFLA_IPTUN_FMR_OFFSET
, offset
);
3291 nla_nest_end(nlm
, rule
);
3294 nla_nest_end(nlm
, fmrs
);
3298 nla_put_u32(nlm
, IFLA_IPTUN_FLAGS
, tun_flags
);
3301 nla_nest_end(nlm
, infodata
);
3302 nla_nest_end(nlm
, linkinfo
);
3304 return system_rtnl_call(nlm
);
3312 #ifdef IFLA_IPTUN_MAX
3313 #define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
3314 static int system_add_gre_tunnel(const char *name
, const char *kind
,
3315 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3318 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3319 struct blob_attr
*cur
;
3320 uint32_t ikey
= 0, okey
= 0, flowinfo
= 0, flags6
= IP6_TNL_F_IGN_ENCAP_LIMIT
;
3321 uint16_t iflags
= 0, oflags
= 0;
3323 int ret
= 0, ttl
= 0;
3324 unsigned encap_limit
= 0;
3326 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3330 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3331 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3333 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3339 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
3340 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3347 nla_put_u32(nlm
, IFLA_GRE_LINK
, link
);
3349 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3350 ttl
= blobmsg_get_u32(cur
);
3352 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3353 char *str
= blobmsg_get_string(cur
);
3354 if (strcmp(str
, "inherit")) {
3357 if (!system_tos_aton(str
, &uval
)) {
3363 flowinfo
|= htonl(uval
<< 20) & IP6_FLOWINFO_TCLASS
;
3368 flags6
|= IP6_TNL_F_USE_ORIG_TCLASS
;
3374 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3375 struct blob_attr
*tb_data
[__GRE_DATA_ATTR_MAX
];
3377 blobmsg_parse(gre_data_attr_list
.params
, __GRE_DATA_ATTR_MAX
, tb_data
,
3378 blobmsg_data(cur
), blobmsg_len(cur
));
3380 if ((cur
= tb_data
[GRE_DATA_IKEY
])) {
3381 if ((ikey
= blobmsg_get_u32(cur
)))
3385 if ((cur
= tb_data
[GRE_DATA_OKEY
])) {
3386 if ((okey
= blobmsg_get_u32(cur
)))
3390 if ((cur
= tb_data
[GRE_DATA_ICSUM
])) {
3391 if (blobmsg_get_bool(cur
))
3395 if ((cur
= tb_data
[GRE_DATA_OCSUM
])) {
3396 if (blobmsg_get_bool(cur
))
3400 if ((cur
= tb_data
[GRE_DATA_ISEQNO
])) {
3401 if (blobmsg_get_bool(cur
))
3405 if ((cur
= tb_data
[GRE_DATA_OSEQNO
])) {
3406 if (blobmsg_get_bool(cur
))
3410 if ((cur
= tb_data
[GRE_DATA_ENCAPLIMIT
])) {
3411 char *str
= blobmsg_get_string(cur
);
3413 if (strcmp(str
, "ignore")) {
3416 encap_limit
= strtoul(str
, &e
, 0);
3418 if (e
== str
|| *e
|| encap_limit
> 255) {
3423 flags6
&= ~IP6_TNL_F_IGN_ENCAP_LIMIT
;
3429 struct in6_addr in6buf
;
3430 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3431 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3435 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(in6buf
), &in6buf
);
3438 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3439 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3443 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(in6buf
), &in6buf
);
3446 if (!(flags6
& IP6_TNL_F_IGN_ENCAP_LIMIT
))
3447 nla_put_u8(nlm
, IFLA_GRE_ENCAP_LIMIT
, encap_limit
);
3450 nla_put_u32(nlm
, IFLA_GRE_FLOWINFO
, flowinfo
);
3453 nla_put_u32(nlm
, IFLA_GRE_FLAGS
, flags6
);
3458 struct in_addr inbuf
;
3461 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3462 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3466 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(inbuf
), &inbuf
);
3469 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3470 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3474 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(inbuf
), &inbuf
);
3476 if (IN_MULTICAST(ntohl(inbuf
.s_addr
))) {
3478 okey
= inbuf
.s_addr
;
3483 ikey
= inbuf
.s_addr
;
3489 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
3490 set_df
= blobmsg_get_bool(cur
);
3493 /* ttl != 0 and nopmtudisc are incompatible */
3501 nla_put_u8(nlm
, IFLA_GRE_PMTUDISC
, set_df
? 1 : 0);
3503 nla_put_u8(nlm
, IFLA_GRE_TOS
, tos
);
3507 nla_put_u8(nlm
, IFLA_GRE_TTL
, ttl
);
3510 nla_put_u16(nlm
, IFLA_GRE_OFLAGS
, oflags
);
3513 nla_put_u16(nlm
, IFLA_GRE_IFLAGS
, iflags
);
3516 nla_put_u32(nlm
, IFLA_GRE_OKEY
, htonl(okey
));
3519 nla_put_u32(nlm
, IFLA_GRE_IKEY
, htonl(ikey
));
3521 nla_nest_end(nlm
, infodata
);
3522 nla_nest_end(nlm
, linkinfo
);
3524 return system_rtnl_call(nlm
);
3533 static int system_add_vti_tunnel(const char *name
, const char *kind
,
3534 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3537 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3538 struct blob_attr
*cur
;
3541 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3545 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3546 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3548 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3554 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
3555 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3562 nla_put_u32(nlm
, IFLA_VTI_LINK
, link
);
3565 struct in6_addr in6buf
;
3566 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3567 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3571 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(in6buf
), &in6buf
);
3574 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3575 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3579 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(in6buf
), &in6buf
);
3583 struct in_addr inbuf
;
3585 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3586 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3590 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(inbuf
), &inbuf
);
3593 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3594 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3598 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(inbuf
), &inbuf
);
3603 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3604 struct blob_attr
*tb_data
[__VTI_DATA_ATTR_MAX
];
3605 uint32_t ikey
= 0, okey
= 0;
3607 blobmsg_parse(vti_data_attr_list
.params
, __VTI_DATA_ATTR_MAX
, tb_data
,
3608 blobmsg_data(cur
), blobmsg_len(cur
));
3610 if ((cur
= tb_data
[VTI_DATA_IKEY
])) {
3611 if ((ikey
= blobmsg_get_u32(cur
)))
3612 nla_put_u32(nlm
, IFLA_VTI_IKEY
, htonl(ikey
));
3615 if ((cur
= tb_data
[VTI_DATA_OKEY
])) {
3616 if ((okey
= blobmsg_get_u32(cur
)))
3617 nla_put_u32(nlm
, IFLA_VTI_OKEY
, htonl(okey
));
3621 nla_nest_end(nlm
, infodata
);
3622 nla_nest_end(nlm
, linkinfo
);
3624 return system_rtnl_call(nlm
);
3632 #ifdef IFLA_XFRM_MAX
3633 static int system_add_xfrm_tunnel(const char *name
, const char *kind
,
3634 const unsigned int link
, struct blob_attr
**tb
)
3637 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3638 struct blob_attr
*cur
;
3641 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3645 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3646 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3648 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3654 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
3655 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3662 nla_put_u32(nlm
, IFLA_XFRM_LINK
, link
);
3664 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3665 struct blob_attr
*tb_data
[__XFRM_DATA_ATTR_MAX
];
3668 blobmsg_parse(xfrm_data_attr_list
.params
, __XFRM_DATA_ATTR_MAX
, tb_data
,
3669 blobmsg_data(cur
), blobmsg_len(cur
));
3671 if ((cur
= tb_data
[XFRM_DATA_IF_ID
])) {
3672 if ((if_id
= blobmsg_get_u32(cur
)))
3673 nla_put_u32(nlm
, IFLA_XFRM_IF_ID
, if_id
);
3678 nla_nest_end(nlm
, infodata
);
3679 nla_nest_end(nlm
, linkinfo
);
3681 return system_rtnl_call(nlm
);
3689 #ifdef IFLA_VXLAN_MAX
3690 static void system_vxlan_map_bool_attr(struct nl_msg
*msg
, struct blob_attr
**tb_data
, int attrtype
, int vxlandatatype
, bool invert
) {
3691 struct blob_attr
*cur
;
3692 if ((cur
= tb_data
[vxlandatatype
])) {
3693 bool val
= blobmsg_get_bool(cur
);
3697 if ((attrtype
== IFLA_VXLAN_GBP
) && val
)
3698 nla_put_flag(msg
, attrtype
);
3700 nla_put_u8(msg
, attrtype
, val
);
3705 static int system_add_vxlan(const char *name
, const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3707 struct blob_attr
*tb_data
[__VXLAN_DATA_ATTR_MAX
];
3709 struct nlattr
*linkinfo
, *data
;
3710 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
3711 struct blob_attr
*cur
;
3714 if ((cur
= tb
[TUNNEL_ATTR_DATA
]))
3715 blobmsg_parse(vxlan_data_attr_list
.params
, __VXLAN_DATA_ATTR_MAX
, tb_data
,
3716 blobmsg_data(cur
), blobmsg_len(cur
));
3720 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
3725 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
3727 nla_put_string(msg
, IFLA_IFNAME
, name
);
3729 if ((cur
= tb_data
[VXLAN_DATA_ATTR_MACADDR
])) {
3730 struct ether_addr
*ea
= ether_aton(blobmsg_get_string(cur
));
3736 nla_put(msg
, IFLA_ADDRESS
, ETH_ALEN
, ea
);
3739 if ((cur
= tb
[TUNNEL_ATTR_MTU
])) {
3740 uint32_t mtu
= blobmsg_get_u32(cur
);
3741 nla_put_u32(msg
, IFLA_MTU
, mtu
);
3744 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
))) {
3749 nla_put_string(msg
, IFLA_INFO_KIND
, "vxlan");
3751 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
))) {
3757 nla_put_u32(msg
, IFLA_VXLAN_LINK
, link
);
3759 if ((cur
= tb_data
[VXLAN_DATA_ATTR_ID
])) {
3760 uint32_t id
= blobmsg_get_u32(cur
);
3761 if (id
>= (1u << 24) - 1) {
3766 nla_put_u32(msg
, IFLA_VXLAN_ID
, id
);
3770 struct in6_addr in6buf
;
3771 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3772 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3776 nla_put(msg
, IFLA_VXLAN_LOCAL6
, sizeof(in6buf
), &in6buf
);
3779 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3780 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3784 nla_put(msg
, IFLA_VXLAN_GROUP6
, sizeof(in6buf
), &in6buf
);
3787 struct in_addr inbuf
;
3789 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3790 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3794 nla_put(msg
, IFLA_VXLAN_LOCAL
, sizeof(inbuf
), &inbuf
);
3797 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3798 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3802 nla_put(msg
, IFLA_VXLAN_GROUP
, sizeof(inbuf
), &inbuf
);
3806 uint32_t port
= 4789;
3807 if ((cur
= tb_data
[VXLAN_DATA_ATTR_PORT
])) {
3808 port
= blobmsg_get_u32(cur
);
3809 if (port
< 1 || port
> 65535) {
3814 nla_put_u16(msg
, IFLA_VXLAN_PORT
, htons(port
));
3816 if ((cur
= tb_data
[VXLAN_DATA_ATTR_SRCPORTMIN
])) {
3817 struct ifla_vxlan_port_range srcports
= {0,0};
3819 uint32_t low
= blobmsg_get_u32(cur
);
3820 if (low
< 1 || low
> 65535 - 1) {
3825 srcports
.low
= htons((uint16_t) low
);
3826 srcports
.high
= htons((uint16_t) (low
+1));
3828 if ((cur
= tb_data
[VXLAN_DATA_ATTR_SRCPORTMAX
])) {
3829 uint32_t high
= blobmsg_get_u32(cur
);
3830 if (high
< 1 || high
> 65535) {
3836 srcports
.high
= htons((uint16_t) high
);
3839 nla_put(msg
, IFLA_VXLAN_PORT_RANGE
, sizeof(srcports
), &srcports
);
3842 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_CSUM
, VXLAN_DATA_ATTR_TXCSUM
, false);
3843 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_ZERO_CSUM6_RX
, VXLAN_DATA_ATTR_RXCSUM
, true);
3844 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_ZERO_CSUM6_TX
, VXLAN_DATA_ATTR_TXCSUM
, true);
3845 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_LEARNING
, VXLAN_DATA_ATTR_LEARNING
, false);
3846 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_RSC
, VXLAN_DATA_ATTR_RSC
, false);
3847 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_PROXY
, VXLAN_DATA_ATTR_PROXY
, false);
3848 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_L2MISS
, VXLAN_DATA_ATTR_L2MISS
, false);
3849 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_L3MISS
, VXLAN_DATA_ATTR_L3MISS
, false);
3850 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_GBP
, VXLAN_DATA_ATTR_GBP
, false);
3852 if ((cur
= tb_data
[VXLAN_DATA_ATTR_AGEING
])) {
3853 uint32_t ageing
= blobmsg_get_u32(cur
);
3854 nla_put_u32(msg
, IFLA_VXLAN_AGEING
, ageing
);
3857 if ((cur
= tb_data
[VXLAN_DATA_ATTR_LIMIT
])) {
3858 uint32_t maxaddress
= blobmsg_get_u32(cur
);
3859 nla_put_u32(msg
, IFLA_VXLAN_LIMIT
, maxaddress
);
3862 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3863 char *str
= blobmsg_get_string(cur
);
3866 if (strcmp(str
, "inherit")) {
3867 if (!system_tos_aton(str
, &tos
)) {
3873 nla_put_u8(msg
, IFLA_VXLAN_TOS
, tos
);
3876 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
3877 uint32_t ttl
= blobmsg_get_u32(cur
);
3878 if (ttl
< 1 || ttl
> 255) {
3883 nla_put_u8(msg
, IFLA_VXLAN_TTL
, ttl
);
3886 nla_nest_end(msg
, data
);
3887 nla_nest_end(msg
, linkinfo
);
3889 ret
= system_rtnl_call(msg
);
3891 D(SYSTEM
, "Error adding vxlan '%s': %d\n", name
, ret
);
3901 static int system_add_sit_tunnel(const char *name
, const unsigned int link
, struct blob_attr
**tb
)
3903 struct blob_attr
*cur
;
3906 if (system_add_proto_tunnel(name
, IPPROTO_IPV6
, link
, tb
) < 0)
3910 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3911 struct blob_attr
*tb_data
[__SIXRD_DATA_ATTR_MAX
];
3913 struct ip_tunnel_6rd p6
;
3915 blobmsg_parse(sixrd_data_attr_list
.params
, __SIXRD_DATA_ATTR_MAX
, tb_data
,
3916 blobmsg_data(cur
), blobmsg_len(cur
));
3918 memset(&p6
, 0, sizeof(p6
));
3920 if ((cur
= tb_data
[SIXRD_DATA_PREFIX
])) {
3921 if (!parse_ip_and_netmask(AF_INET6
, blobmsg_data(cur
),
3922 &p6
.prefix
, &mask
) || mask
> 128) {
3927 p6
.prefixlen
= mask
;
3930 if ((cur
= tb_data
[SIXRD_DATA_RELAY_PREFIX
])) {
3931 if (!parse_ip_and_netmask(AF_INET
, blobmsg_data(cur
),
3932 &p6
.relay_prefix
, &mask
) || mask
> 32) {
3937 p6
.relay_prefixlen
= mask
;
3940 if (tunnel_ioctl(name
, SIOCADD6RD
, &p6
) < 0) {
3950 system_link_del(name
);
3954 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
, const unsigned int link
, struct blob_attr
**tb
)
3956 struct blob_attr
*cur
;
3958 struct ip_tunnel_parm p
= {
3967 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
]) &&
3968 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.saddr
) < 1)
3971 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
]) &&
3972 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.daddr
) < 1)
3975 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
3976 set_df
= blobmsg_get_bool(cur
);
3978 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3979 p
.iph
.ttl
= blobmsg_get_u32(cur
);
3981 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3982 char *str
= blobmsg_get_string(cur
);
3983 if (strcmp(str
, "inherit")) {
3986 if (!system_tos_aton(str
, &uval
))
3994 p
.iph
.frag_off
= set_df
? htons(IP_DF
) : 0;
3995 /* ttl !=0 and nopmtudisc are incompatible */
3996 if (p
.iph
.ttl
&& p
.iph
.frag_off
== 0)
3999 strncpy(p
.name
, name
, sizeof(p
.name
) - 1);
4001 switch (p
.iph
.protocol
) {
4003 return tunnel_ioctl("tunl0", SIOCADDTUNNEL
, &p
);
4005 return tunnel_ioctl("sit0", SIOCADDTUNNEL
, &p
);
4012 int system_del_ip_tunnel(const struct device
*dev
)
4014 return system_link_del(dev
->ifname
);
4017 int system_update_ipv6_mtu(struct device
*dev
, int mtu
)
4023 fd
= open(dev_sysctl_path("ipv6/conf", dev
->ifname
, "mtu"), O_RDWR
);
4028 ssize_t len
= read(fd
, buf
, sizeof(buf
) - 1);
4035 if (write(fd
, buf
, snprintf(buf
, sizeof(buf
), "%i", mtu
)) > 0)
4044 int system_add_ip_tunnel(const struct device
*dev
, struct blob_attr
*attr
)
4046 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
4047 struct blob_attr
*cur
;
4050 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
4051 blob_data(attr
), blob_len(attr
));
4053 system_link_del(dev
->ifname
);
4055 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
4057 str
= blobmsg_data(cur
);
4059 unsigned int ttl
= 0;
4060 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
4061 ttl
= blobmsg_get_u32(cur
);
4066 unsigned int link
= 0;
4067 if ((cur
= tb
[TUNNEL_ATTR_LINK
])) {
4068 struct interface
*iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
4072 if (iface
->l3_dev
.dev
)
4073 link
= iface
->l3_dev
.dev
->ifindex
;
4076 if (!strcmp(str
, "sit"))
4077 return system_add_sit_tunnel(dev
->ifname
, link
, tb
);
4078 #ifdef IFLA_IPTUN_MAX
4079 else if (!strcmp(str
, "ipip6")) {
4080 return system_add_ip6_tunnel(dev
->ifname
, link
, tb
);
4081 } else if (!strcmp(str
, "greip")) {
4082 return system_add_gre_tunnel(dev
->ifname
, "gre", link
, tb
, false);
4083 } else if (!strcmp(str
, "gretapip")) {
4084 return system_add_gre_tunnel(dev
->ifname
, "gretap", link
, tb
, false);
4085 } else if (!strcmp(str
, "greip6")) {
4086 return system_add_gre_tunnel(dev
->ifname
, "ip6gre", link
, tb
, true);
4087 } else if (!strcmp(str
, "gretapip6")) {
4088 return system_add_gre_tunnel(dev
->ifname
, "ip6gretap", link
, tb
, true);
4090 } else if (!strcmp(str
, "vtiip")) {
4091 return system_add_vti_tunnel(dev
->ifname
, "vti", link
, tb
, false);
4092 } else if (!strcmp(str
, "vtiip6")) {
4093 return system_add_vti_tunnel(dev
->ifname
, "vti6", link
, tb
, true);
4095 #ifdef IFLA_XFRM_MAX
4096 } else if (!strcmp(str
, "xfrm")) {
4097 return system_add_xfrm_tunnel(dev
->ifname
, "xfrm", link
, tb
);
4099 #ifdef IFLA_VXLAN_MAX
4100 } else if(!strcmp(str
, "vxlan")) {
4101 return system_add_vxlan(dev
->ifname
, link
, tb
, false);
4102 } else if(!strcmp(str
, "vxlan6")) {
4103 return system_add_vxlan(dev
->ifname
, link
, tb
, true);
4106 } else if (!strcmp(str
, "ipip")) {
4107 return system_add_proto_tunnel(dev
->ifname
, IPPROTO_IPIP
, link
, tb
);