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 #include "ethtool-modes.h"
53 #ifndef RTN_FAILED_POLICY
54 #define RTN_FAILED_POLICY 12
57 #ifndef IFA_F_NOPREFIXROUTE
58 #define IFA_F_NOPREFIXROUTE 0x200
62 #define IFA_FLAGS (IFA_MULTICAST + 1)
71 #include <netlink/msg.h>
72 #include <netlink/attr.h>
73 #include <netlink/socket.h>
74 #include <libubox/uloop.h>
82 struct uloop_fd uloop
;
87 static int sock_ioctl
= -1;
88 static struct nl_sock
*sock_rtnl
= NULL
;
90 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
);
91 static void handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
);
92 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
,
93 const unsigned int link
, struct blob_attr
**tb
);
95 static char dev_buf
[256];
96 static const char *proc_path
= "/proc";
97 static const char *sysfs_path
= "/sys";
104 static const struct netdev_type netdev_types
[] = {
105 {ARPHRD_NETROM
, "netrom"},
106 {ARPHRD_ETHER
, "ethernet"},
107 {ARPHRD_EETHER
, "eethernet"},
108 {ARPHRD_AX25
, "ax25"},
109 {ARPHRD_PRONET
, "pronet"},
110 {ARPHRD_CHAOS
, "chaos"},
111 {ARPHRD_IEEE802
, "ieee802"},
112 {ARPHRD_ARCNET
, "arcnet"},
113 {ARPHRD_APPLETLK
, "appletlk"},
114 {ARPHRD_DLCI
, "dlci"},
116 {ARPHRD_METRICOM
, "metricom"},
117 {ARPHRD_IEEE1394
, "ieee1394"},
118 {ARPHRD_EUI64
, "eui64"},
119 {ARPHRD_INFINIBAND
, "infiniband"},
120 {ARPHRD_SLIP
, "slip"},
121 {ARPHRD_CSLIP
, "cslip"},
122 {ARPHRD_SLIP6
, "slip6"},
123 {ARPHRD_CSLIP6
, "cslip6"},
124 {ARPHRD_RSRVD
, "rsrvd"},
125 {ARPHRD_ADAPT
, "adapt"},
126 {ARPHRD_ROSE
, "rose"},
128 {ARPHRD_HWX25
, "hwx25"},
130 {ARPHRD_CISCO
, "cisco"},
131 {ARPHRD_LAPB
, "lapb"},
132 {ARPHRD_DDCMP
, "ddcmp"},
133 {ARPHRD_RAWHDLC
, "rawhdlc"},
134 {ARPHRD_TUNNEL
, "tunnel"},
135 {ARPHRD_TUNNEL6
, "tunnel6"},
136 {ARPHRD_FRAD
, "frad"},
137 {ARPHRD_SKIP
, "skip"},
138 {ARPHRD_LOOPBACK
, "loopback"},
139 {ARPHRD_LOCALTLK
, "localtlk"},
140 {ARPHRD_FDDI
, "fddi"},
143 {ARPHRD_IPDDP
, "ipddp"},
144 {ARPHRD_IPGRE
, "ipgre"},
145 {ARPHRD_PIMREG
,"pimreg"},
146 {ARPHRD_HIPPI
, "hippi"},
148 {ARPHRD_ECONET
, "econet"},
149 {ARPHRD_IRDA
, "irda"},
150 {ARPHRD_FCPP
, "fcpp"},
151 {ARPHRD_FCAL
, "fcal"},
152 {ARPHRD_FCPL
, "fcpl"},
153 {ARPHRD_FCFABRIC
, "fcfabric"},
154 {ARPHRD_IEEE80211
, "ieee80211"},
155 {ARPHRD_IEEE80211_PRISM
, "ie80211-prism"},
156 {ARPHRD_IEEE80211_RADIOTAP
, "ieee80211-radiotap"},
158 {ARPHRD_PHONET
, "phonet"},
160 #ifdef ARPHRD_PHONET_PIPE
161 {ARPHRD_PHONET_PIPE
, "phonet-pipe"},
163 {ARPHRD_IEEE802154
, "ieee802154"},
164 {ARPHRD_VOID
, "void"},
165 {ARPHRD_NONE
, "none"}
169 handler_nl_event(struct uloop_fd
*u
, unsigned int events
)
171 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
173 socklen_t errlen
= sizeof(err
);
176 nl_recvmsgs_default(ev
->sock
);
180 if (getsockopt(u
->fd
, SOL_SOCKET
, SO_ERROR
, (void *)&err
, &errlen
))
185 /* Increase rx buffer size on netlink socket */
187 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
190 /* Request full dump since some info got dropped */
191 struct rtgenmsg msg
= { .rtgen_family
= AF_UNSPEC
};
192 nl_send_simple(ev
->sock
, RTM_GETLINK
, NLM_F_DUMP
, &msg
, sizeof(msg
));
202 uloop_fd_delete(&ev
->uloop
);
207 nl_udebug_cb(void *priv
, struct nl_msg
*msg
)
209 struct nlmsghdr
*nlh
= nlmsg_hdr(msg
);
211 udebug_netlink_msg(priv
, nlmsg_get_proto(msg
), nlh
, nlh
->nlmsg_len
);
214 static struct nl_sock
*
215 create_socket(int protocol
, int groups
)
217 struct nl_sock
*sock
;
219 sock
= nl_socket_alloc();
224 nl_join_groups(sock
, groups
);
226 if (nl_connect(sock
, protocol
)) {
227 nl_socket_free(sock
);
231 nl_socket_set_tx_debug_cb(sock
, nl_udebug_cb
, &udb_nl
);
232 nl_socket_set_rx_debug_cb(sock
, nl_udebug_cb
, &udb_nl
);
238 create_raw_event_socket(struct event_socket
*ev
, int protocol
, int groups
,
239 uloop_fd_handler cb
, int flags
)
241 ev
->sock
= create_socket(protocol
, groups
);
245 ev
->uloop
.fd
= nl_socket_get_fd(ev
->sock
);
247 if (uloop_fd_add(&ev
->uloop
, ULOOP_READ
|flags
))
254 create_event_socket(struct event_socket
*ev
, int protocol
,
255 int (*cb
)(struct nl_msg
*msg
, void *arg
))
257 if (!create_raw_event_socket(ev
, protocol
, 0, handler_nl_event
, ULOOP_ERROR_CB
))
260 /* Install the valid custom callback handler */
261 nl_socket_modify_cb(ev
->sock
, NL_CB_VALID
, NL_CB_CUSTOM
, cb
, NULL
);
263 /* Disable sequence number checking on event sockets */
264 nl_socket_disable_seq_check(ev
->sock
);
266 /* Increase rx buffer size to 65K on event sockets */
268 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
275 create_hotplug_event_socket(struct event_socket
*ev
, int protocol
,
276 void (*cb
)(struct uloop_fd
*u
, unsigned int events
))
278 if (!create_raw_event_socket(ev
, protocol
, 1, cb
, ULOOP_ERROR_CB
))
281 /* Increase rx buffer size to 65K on event sockets */
283 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
290 system_rtn_aton(const char *src
, unsigned int *dst
)
295 if (!strcmp(src
, "local"))
297 else if (!strcmp(src
, "nat"))
299 else if (!strcmp(src
, "broadcast"))
301 else if (!strcmp(src
, "anycast"))
303 else if (!strcmp(src
, "multicast"))
305 else if (!strcmp(src
, "prohibit"))
307 else if (!strcmp(src
, "unreachable"))
309 else if (!strcmp(src
, "blackhole"))
311 else if (!strcmp(src
, "xresolve"))
313 else if (!strcmp(src
, "unicast"))
315 else if (!strcmp(src
, "throw"))
317 else if (!strcmp(src
, "failed_policy"))
318 n
= RTN_FAILED_POLICY
;
320 n
= strtoul(src
, &e
, 0);
321 if (!e
|| *e
|| e
== src
|| n
> 255)
330 system_tos_aton(const char *src
, unsigned *dst
)
334 *dst
= strtoul(src
, &e
, 16);
335 if (e
== src
|| *e
|| *dst
> 255)
341 int system_init(void)
343 static struct event_socket rtnl_event
;
344 static struct event_socket hotplug_event
;
346 sock_ioctl
= socket(AF_LOCAL
, SOCK_DGRAM
, 0);
347 system_fd_set_cloexec(sock_ioctl
);
349 /* Prepare socket for routing / address control */
350 sock_rtnl
= create_socket(NETLINK_ROUTE
, 0);
354 if (!create_event_socket(&rtnl_event
, NETLINK_ROUTE
, cb_rtnl_event
))
357 if (!create_hotplug_event_socket(&hotplug_event
, NETLINK_KOBJECT_UEVENT
,
358 handle_hotplug_event
))
361 /* Receive network link events form kernel */
362 nl_socket_add_membership(rtnl_event
.sock
, RTNLGRP_LINK
);
367 static void write_file(const char *path
, const char *val
)
371 fd
= open(path
, O_WRONLY
);
375 if (write(fd
, val
, strlen(val
))) {}
379 static int read_file(const char *path
, char *buf
, const size_t buf_sz
)
381 int fd
= -1, ret
= -1;
383 fd
= open(path
, O_RDONLY
);
387 ssize_t len
= read(fd
, buf
, buf_sz
- 1);
402 dev_sysctl_path(const char *prefix
, const char *ifname
, const char *file
)
404 snprintf(dev_buf
, sizeof(dev_buf
), "%s/sys/net/%s/%s/%s", proc_path
, prefix
, ifname
, file
);
410 dev_sysfs_path(const char *ifname
, const char *file
)
412 snprintf(dev_buf
, sizeof(dev_buf
), "%s/class/net/%s/%s", sysfs_path
, ifname
, file
);
418 system_set_dev_sysctl(const char *prefix
, const char *file
, const char *ifname
,
421 write_file(dev_sysctl_path(prefix
, ifname
, file
), val
);
425 system_get_dev_sysctl(const char *prefix
, const char *file
, const char *ifname
,
426 char *buf
, size_t buf_sz
)
428 return read_file(dev_sysctl_path(prefix
, ifname
, file
), buf
, buf_sz
);
432 system_set_dev_sysfs(const char *file
, const char *ifname
, const char *val
)
437 write_file(dev_sysfs_path(ifname
, file
), val
);
441 system_set_dev_sysfs_int(const char *file
, const char *ifname
, int val
)
445 snprintf(buf
, sizeof(buf
), "%d", val
);
446 system_set_dev_sysfs(file
, ifname
, buf
);
450 system_get_dev_sysfs(const char *file
, const char *ifname
, char *buf
, size_t buf_sz
)
452 return read_file(dev_sysfs_path(ifname
, file
), buf
, buf_sz
);
455 static void system_set_disable_ipv6(struct device
*dev
, const char *val
)
457 system_set_dev_sysctl("ipv6/conf", "disable_ipv6", dev
->ifname
, val
);
460 static void system_set_ip6segmentrouting(struct device
*dev
, const char *val
)
462 system_set_dev_sysctl("ipv6/conf", "seg6_enabled", dev
->ifname
, val
);
465 static void system_set_rpfilter(struct device
*dev
, const char *val
)
467 system_set_dev_sysctl("ipv4/conf", "rp_filter", dev
->ifname
, val
);
470 static void system_set_acceptlocal(struct device
*dev
, const char *val
)
472 system_set_dev_sysctl("ipv4/conf", "accept_local", dev
->ifname
, val
);
475 static void system_set_igmpversion(struct device
*dev
, const char *val
)
477 system_set_dev_sysctl("ipv4/conf", "force_igmp_version", dev
->ifname
, val
);
480 static void system_set_mldversion(struct device
*dev
, const char *val
)
482 system_set_dev_sysctl("ipv6/conf", "force_mld_version", dev
->ifname
, val
);
485 static void system_set_neigh4reachabletime(struct device
*dev
, const char *val
)
487 system_set_dev_sysctl("ipv4/neigh", "base_reachable_time_ms", dev
->ifname
, val
);
490 static void system_set_neigh6reachabletime(struct device
*dev
, const char *val
)
492 system_set_dev_sysctl("ipv6/neigh", "base_reachable_time_ms", dev
->ifname
, val
);
495 static void system_set_neigh4gcstaletime(struct device
*dev
, const char *val
)
497 system_set_dev_sysctl("ipv4/neigh", "gc_stale_time", dev
->ifname
, val
);
500 static void system_set_neigh6gcstaletime(struct device
*dev
, const char *val
)
502 system_set_dev_sysctl("ipv6/neigh", "gc_stale_time", dev
->ifname
, val
);
505 static void system_set_neigh4locktime(struct device
*dev
, const char *val
)
507 system_set_dev_sysctl("ipv4/neigh", "locktime", dev
->ifname
, val
);
510 static void system_set_dadtransmits(struct device
*dev
, const char *val
)
512 system_set_dev_sysctl("ipv6/conf", "dad_transmits", dev
->ifname
, val
);
515 static void system_set_sendredirects(struct device
*dev
, const char *val
)
517 system_set_dev_sysctl("ipv4/conf", "send_redirects", dev
->ifname
, val
);
520 static void system_set_drop_v4_unicast_in_l2_multicast(struct device
*dev
, const char *val
)
522 system_set_dev_sysctl("ipv4/conf", "drop_unicast_in_l2_multicast", dev
->ifname
, val
);
525 static void system_set_drop_v6_unicast_in_l2_multicast(struct device
*dev
, const char *val
)
527 system_set_dev_sysctl("ipv6/conf", "drop_unicast_in_l2_multicast", dev
->ifname
, val
);
530 static void system_set_drop_gratuitous_arp(struct device
*dev
, const char *val
)
532 system_set_dev_sysctl("ipv4/conf", "drop_gratuitous_arp", dev
->ifname
, val
);
535 static void system_set_drop_unsolicited_na(struct device
*dev
, const char *val
)
537 system_set_dev_sysctl("ipv6/conf", "drop_unsolicited_na", dev
->ifname
, val
);
540 static void system_set_arp_accept(struct device
*dev
, const char *val
)
542 system_set_dev_sysctl("ipv4/conf", "arp_accept", dev
->ifname
, val
);
545 static void system_bridge_set_multicast_to_unicast(struct device
*dev
, const char *val
)
547 system_set_dev_sysfs("brport/multicast_to_unicast", dev
->ifname
, val
);
550 static void system_bridge_set_multicast_fast_leave(struct device
*dev
, const char *val
)
552 system_set_dev_sysfs("brport/multicast_fast_leave", dev
->ifname
, val
);
555 static void system_bridge_set_hairpin_mode(struct device
*dev
, const char *val
)
557 system_set_dev_sysfs("brport/hairpin_mode", dev
->ifname
, val
);
560 static void system_bridge_set_proxyarp_wifi(struct device
*dev
, const char *val
)
562 system_set_dev_sysfs("brport/proxyarp_wifi", dev
->ifname
, val
);
565 static void system_bridge_set_bpdu_filter(struct device
*dev
, const char *val
)
567 system_set_dev_sysfs("brport/bpdu_filter", dev
->ifname
, val
);
570 static void system_bridge_set_isolated(struct device
*dev
, const char *val
)
572 system_set_dev_sysfs("brport/isolated", dev
->ifname
, val
);
575 static void system_bridge_set_multicast_router(struct device
*dev
, const char *val
)
577 system_set_dev_sysfs("brport/multicast_router", dev
->ifname
, val
);
580 void system_bridge_set_stp_state(struct device
*dev
, bool val
)
582 const char *valstr
= val
? "1" : "0";
584 system_set_dev_sysfs("bridge/stp_state", dev
->ifname
, valstr
);
587 static void system_bridge_set_learning(struct device
*dev
, const char *val
)
589 system_set_dev_sysfs("brport/learning", dev
->ifname
, val
);
592 static void system_bridge_set_unicast_flood(struct device
*dev
, const char *val
)
594 system_set_dev_sysfs("brport/unicast_flood", dev
->ifname
, val
);
597 static int system_get_disable_ipv6(struct device
*dev
, char *buf
, const size_t buf_sz
)
599 return system_get_dev_sysctl("ipv6/conf", "disable_ipv6",
600 dev
->ifname
, buf
, buf_sz
);
603 static int system_get_ip6segmentrouting(struct device
*dev
, char *buf
, const size_t buf_sz
)
605 return system_get_dev_sysctl("ipv6/conf", "seg6_enabled",
606 dev
->ifname
, buf
, buf_sz
);
609 static int system_get_rpfilter(struct device
*dev
, char *buf
, const size_t buf_sz
)
611 return system_get_dev_sysctl("ipv4/conf", "rp_filter",
612 dev
->ifname
, buf
, buf_sz
);
615 static int system_get_acceptlocal(struct device
*dev
, char *buf
, const size_t buf_sz
)
617 return system_get_dev_sysctl("ipv4/conf", "accept_local",
618 dev
->ifname
, buf
, buf_sz
);
621 static int system_get_igmpversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
623 return system_get_dev_sysctl("ipv4/conf", "force_igmp_version",
624 dev
->ifname
, buf
, buf_sz
);
627 static int system_get_mldversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
629 return system_get_dev_sysctl("ipv6/conf", "force_mld_version",
630 dev
->ifname
, buf
, buf_sz
);
633 static int system_get_neigh4reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
635 return system_get_dev_sysctl("ipv4/neigh", "base_reachable_time_ms",
636 dev
->ifname
, buf
, buf_sz
);
639 static int system_get_neigh6reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
641 return system_get_dev_sysctl("ipv6/neigh", "base_reachable_time_ms",
642 dev
->ifname
, buf
, buf_sz
);
645 static int system_get_neigh4gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
647 return system_get_dev_sysctl("ipv4/neigh", "gc_stale_time",
648 dev
->ifname
, buf
, buf_sz
);
651 static int system_get_neigh6gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
653 return system_get_dev_sysctl("ipv6/neigh", "gc_stale_time",
654 dev
->ifname
, buf
, buf_sz
);
657 static int system_get_neigh4locktime(struct device
*dev
, char *buf
, const size_t buf_sz
)
659 return system_get_dev_sysctl("ipv4/neigh", "locktime",
660 dev
->ifname
, buf
, buf_sz
);
663 static int system_get_dadtransmits(struct device
*dev
, char *buf
, const size_t buf_sz
)
665 return system_get_dev_sysctl("ipv6/conf", "dad_transmits",
666 dev
->ifname
, buf
, buf_sz
);
669 static int system_get_sendredirects(struct device
*dev
, char *buf
, const size_t buf_sz
)
671 return system_get_dev_sysctl("ipv4/conf", "send_redirects",
672 dev
->ifname
, buf
, buf_sz
);
676 static int system_get_drop_v4_unicast_in_l2_multicast(struct device
*dev
, char *buf
, const size_t buf_sz
)
678 return system_get_dev_sysctl("ipv4/conf", "drop_unicast_in_l2_multicast",
679 dev
->ifname
, buf
, buf_sz
);
682 static int system_get_drop_v6_unicast_in_l2_multicast(struct device
*dev
, char *buf
, const size_t buf_sz
)
684 return system_get_dev_sysctl("ipv6/conf", "drop_unicast_in_l2_multicast",
685 dev
->ifname
, buf
, buf_sz
);
688 static int system_get_drop_gratuitous_arp(struct device
*dev
, char *buf
, const size_t buf_sz
)
690 return system_get_dev_sysctl("ipv4/conf", "drop_gratuitous_arp",
691 dev
->ifname
, buf
, buf_sz
);
694 static int system_get_drop_unsolicited_na(struct device
*dev
, char *buf
, const size_t buf_sz
)
696 return system_get_dev_sysctl("ipv6/conf", "drop_unsolicited_na",
697 dev
->ifname
, buf
, buf_sz
);
700 static int system_get_arp_accept(struct device
*dev
, char *buf
, const size_t buf_sz
)
702 return system_get_dev_sysctl("ipv4/conf", "arp_accept",
703 dev
->ifname
, buf
, buf_sz
);
707 #define IFF_LOWER_UP 0x10000
711 system_device_update_state(struct device
*dev
, unsigned int flags
, unsigned int ifindex
)
713 if (dev
->type
== &simple_device_type
) {
715 device_set_disabled(dev
, !(flags
& IFF_UP
));
717 device_set_present(dev
, ifindex
> 0);
719 device_set_link(dev
, flags
& IFF_LOWER_UP
? true : false);
722 /* Evaluate netlink messages */
723 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
)
725 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
726 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
727 struct nlattr
*nla
[__IFLA_MAX
];
730 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
733 nlmsg_parse(nh
, sizeof(struct ifinfomsg
), nla
, __IFLA_MAX
- 1, NULL
);
734 if (!nla
[IFLA_IFNAME
])
737 dev
= device_find(nla_data(nla
[IFLA_IFNAME
]));
741 system_device_update_state(dev
, ifi
->ifi_flags
, ifi
->ifi_index
);
746 handle_hotplug_msg(char *data
, int size
)
748 const char *subsystem
= NULL
, *interface
= NULL
, *interface_old
= NULL
;
749 char *cur
, *end
, *sep
;
753 if (!strncmp(data
, "add@", 4) || !strncmp(data
, "move@", 5))
755 else if (!strncmp(data
, "remove@", 7))
760 skip
= strlen(data
) + 1;
763 for (cur
= data
+ skip
; cur
< end
; cur
+= skip
) {
764 skip
= strlen(cur
) + 1;
766 sep
= strchr(cur
, '=');
771 if (!strcmp(cur
, "INTERFACE"))
773 else if (!strcmp(cur
, "SUBSYSTEM")) {
775 if (strcmp(subsystem
, "net") != 0)
777 } else if (!strcmp(cur
, "DEVPATH_OLD")) {
778 interface_old
= strrchr(sep
+ 1, '/');
784 if (!subsystem
|| !interface
)
788 device_hotplug_event(interface_old
, false);
790 device_hotplug_event(interface
, add
);
794 handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
)
796 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
797 struct sockaddr_nl nla
;
798 unsigned char *buf
= NULL
;
801 socklen_t errlen
= sizeof(err
);
804 while ((size
= nl_recv(ev
->sock
, &nla
, &buf
, NULL
)) > 0) {
806 handle_hotplug_msg((char *) buf
, size
);
813 if (getsockopt(u
->fd
, SOL_SOCKET
, SO_ERROR
, (void *)&err
, &errlen
))
818 /* Increase rx buffer size on netlink socket */
820 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
831 uloop_fd_delete(&ev
->uloop
);
835 static int system_rtnl_call(struct nl_msg
*msg
)
839 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
845 return nl_wait_for_ack(sock_rtnl
);
848 static struct nl_msg
*__system_ifinfo_msg(int af
, int index
, const char *ifname
, uint16_t type
, uint16_t flags
)
851 struct ifinfomsg iim
= {
856 msg
= nlmsg_alloc_simple(type
, flags
| NLM_F_REQUEST
);
860 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
862 nla_put_string(msg
, IFLA_IFNAME
, ifname
);
867 static struct nl_msg
*system_ifinfo_msg(const char *ifname
, uint16_t type
, uint16_t flags
)
869 return __system_ifinfo_msg(AF_UNSPEC
, 0, ifname
, type
, flags
);
872 static int system_link_del(const char *ifname
)
876 msg
= system_ifinfo_msg(ifname
, RTM_DELLINK
, 0);
880 return system_rtnl_call(msg
);
883 int system_bridge_delbr(struct device
*bridge
)
885 return system_link_del(bridge
->ifname
);
888 static int system_bridge_if(const char *bridge
, struct device
*dev
, int cmd
, void *data
)
892 memset(&ifr
, 0, sizeof(ifr
));
894 ifr
.ifr_ifindex
= dev
->ifindex
;
897 strncpy(ifr
.ifr_name
, bridge
, sizeof(ifr
.ifr_name
) - 1);
898 return ioctl(sock_ioctl
, cmd
, &ifr
);
901 static bool system_is_bridge(const char *name
)
905 return stat(dev_sysfs_path(name
, "bridge"), &st
) >= 0;
908 static char *system_get_bridge(const char *name
, char *buf
, int buflen
)
914 snprintf(buf
, buflen
, "%s/devices/virtual/net/*/brif/%s/bridge", sysfs_path
, name
);
915 if (glob(buf
, GLOB_NOSORT
, NULL
, &gl
) < 0)
919 len
= readlink(gl
.gl_pathv
[0], buf
, buflen
);
927 path
= strrchr(buf
, '/');
935 system_bridge_set_wireless(struct device
*bridge
, struct device
*dev
)
937 bool mcast_to_ucast
= dev
->wireless_ap
;
940 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
)
941 mcast_to_ucast
= dev
->settings
.multicast_to_unicast
;
942 else if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
&&
943 !bridge
->settings
.multicast_to_unicast
)
944 mcast_to_ucast
= false;
946 hairpin
= mcast_to_ucast
|| dev
->wireless_proxyarp
;
947 if (dev
->wireless_isolate
)
950 system_bridge_set_multicast_to_unicast(dev
, mcast_to_ucast
? "1" : "0");
951 system_bridge_set_hairpin_mode(dev
, hairpin
? "1" : "0");
952 system_bridge_set_proxyarp_wifi(dev
, dev
->wireless_proxyarp
? "1" : "0");
955 int system_bridge_addif(struct device
*bridge
, struct device
*dev
)
963 for (tries
= 0; tries
< 3; tries
++) {
965 oldbr
= system_get_bridge(dev
->ifname
, dev_buf
, sizeof(dev_buf
));
966 if (oldbr
&& !strcmp(oldbr
, bridge
->ifname
))
969 ret
= system_bridge_if(bridge
->ifname
, dev
, SIOCBRADDIF
, NULL
);
973 D(SYSTEM
, "Failed to add device '%s' to bridge '%s' (tries=%d): %s",
974 dev
->ifname
, bridge
->ifname
, tries
, strerror(errno
));
978 system_bridge_set_wireless(bridge
, dev
);
980 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
981 snprintf(buf
, sizeof(buf
), "%u", dev
->settings
.multicast_router
);
982 system_bridge_set_multicast_router(dev
, buf
);
985 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
&&
986 dev
->settings
.multicast_fast_leave
)
987 system_bridge_set_multicast_fast_leave(dev
, "1");
989 if (dev
->settings
.flags
& DEV_OPT_LEARNING
&&
990 !dev
->settings
.learning
)
991 system_bridge_set_learning(dev
, "0");
993 if (dev
->settings
.flags
& DEV_OPT_UNICAST_FLOOD
&&
994 !dev
->settings
.unicast_flood
)
995 system_bridge_set_unicast_flood(dev
, "0");
997 if (dev
->settings
.flags
& DEV_OPT_ISOLATE
&&
998 dev
->settings
.isolate
)
999 system_bridge_set_isolated(dev
, "1");
1001 if (dev
->bpdu_filter
)
1002 system_bridge_set_bpdu_filter(dev
, dev
->bpdu_filter
? "1" : "0");
1007 int system_bridge_delif(struct device
*bridge
, struct device
*dev
)
1009 return system_bridge_if(bridge
->ifname
, dev
, SIOCBRDELIF
, NULL
);
1012 int system_bridge_vlan(const char *iface
, uint16_t vid
, int16_t vid_end
, bool add
, unsigned int vflags
)
1014 struct bridge_vlan_info vinfo
= { .vid
= vid
, };
1015 unsigned short flags
= 0;
1016 struct nlattr
*afspec
;
1021 index
= if_nametoindex(iface
);
1025 nlm
= __system_ifinfo_msg(PF_BRIDGE
, index
, NULL
, add
? RTM_SETLINK
: RTM_DELLINK
, 0);
1029 if (vflags
& BRVLAN_F_SELF
)
1030 flags
|= BRIDGE_FLAGS_SELF
;
1032 if (vflags
& BRVLAN_F_PVID
)
1033 vinfo
.flags
|= BRIDGE_VLAN_INFO_PVID
;
1035 if (vflags
& BRVLAN_F_UNTAGGED
)
1036 vinfo
.flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
1038 afspec
= nla_nest_start(nlm
, IFLA_AF_SPEC
);
1045 nla_put_u16(nlm
, IFLA_BRIDGE_FLAGS
, flags
);
1048 vinfo
.flags
|= BRIDGE_VLAN_INFO_RANGE_BEGIN
;
1050 nla_put(nlm
, IFLA_BRIDGE_VLAN_INFO
, sizeof(vinfo
), &vinfo
);
1052 if (vid_end
> vid
) {
1053 vinfo
.flags
&= ~BRIDGE_VLAN_INFO_RANGE_BEGIN
;
1054 vinfo
.flags
|= BRIDGE_VLAN_INFO_RANGE_END
;
1055 vinfo
.vid
= vid_end
;
1056 nla_put(nlm
, IFLA_BRIDGE_VLAN_INFO
, sizeof(vinfo
), &vinfo
);
1059 nla_nest_end(nlm
, afspec
);
1061 return system_rtnl_call(nlm
);
1068 int system_bonding_set_device(struct device
*dev
, struct bonding_config
*cfg
)
1070 const char *ifname
= dev
->ifname
;
1071 struct blob_attr
*cur
;
1072 char op
= cfg
? '+' : '-';
1076 snprintf(dev_buf
, sizeof(dev_buf
), "%s/class/net/bonding_masters", sysfs_path
);
1077 snprintf(buf
, sizeof(buf
), "%c%s", op
, ifname
);
1078 write_file(dev_buf
, buf
);
1083 system_set_dev_sysfs("bonding/mode", ifname
, bonding_policy_str
[cfg
->policy
]);
1085 system_set_dev_sysfs_int("bonding/all_ports_active", ifname
, cfg
->all_ports_active
);
1087 if (cfg
->policy
== BONDING_MODE_BALANCE_XOR
||
1088 cfg
->policy
== BONDING_MODE_BALANCE_TLB
||
1089 cfg
->policy
== BONDING_MODE_8023AD
)
1090 system_set_dev_sysfs("bonding/xmit_hash_policy", ifname
, cfg
->xmit_hash_policy
);
1092 if (cfg
->policy
== BONDING_MODE_8023AD
) {
1093 system_set_dev_sysfs("bonding/ad_actor_system", ifname
, cfg
->ad_actor_system
);
1094 system_set_dev_sysfs_int("bonding/ad_actor_sys_prio", ifname
, cfg
->ad_actor_sys_prio
);
1095 system_set_dev_sysfs("bonding/ad_select", ifname
, cfg
->ad_select
);
1096 system_set_dev_sysfs("bonding/lacp_rate", ifname
, cfg
->lacp_rate
);
1097 system_set_dev_sysfs_int("bonding/min_links", ifname
, cfg
->min_links
);
1100 if (cfg
->policy
== BONDING_MODE_BALANCE_RR
)
1101 system_set_dev_sysfs_int("bonding/packets_per_slave", ifname
, cfg
->packets_per_port
);
1103 if (cfg
->policy
== BONDING_MODE_BALANCE_TLB
||
1104 cfg
->policy
== BONDING_MODE_BALANCE_ALB
)
1105 system_set_dev_sysfs_int("bonding/lp_interval", ifname
, cfg
->lp_interval
);
1107 if (cfg
->policy
== BONDING_MODE_BALANCE_TLB
)
1108 system_set_dev_sysfs_int("bonding/tlb_dynamic_lb", ifname
, cfg
->dynamic_lb
);
1109 system_set_dev_sysfs_int("bonding/resend_igmp", ifname
, cfg
->resend_igmp
);
1110 system_set_dev_sysfs_int("bonding/num_grat_arp", ifname
, cfg
->num_peer_notif
);
1111 system_set_dev_sysfs("bonding/primary_reselect", ifname
, cfg
->primary_reselect
);
1112 system_set_dev_sysfs("bonding/fail_over_mac", ifname
, cfg
->failover_mac
);
1114 system_set_dev_sysfs_int((cfg
->monitor_arp
?
1115 "bonding/arp_interval" :
1116 "bonding/miimon"), ifname
, cfg
->monitor_interval
);
1118 blobmsg_for_each_attr(cur
, cfg
->arp_target
, rem
) {
1119 snprintf(buf
, sizeof(buf
), "+%s", blobmsg_get_string(cur
));
1120 system_set_dev_sysfs("bonding/arp_ip_target", ifname
, buf
);
1123 system_set_dev_sysfs_int("bonding/arp_all_targets", ifname
, cfg
->arp_all_targets
);
1124 if (cfg
->policy
< BONDING_MODE_8023AD
)
1125 system_set_dev_sysfs("bonding/arp_validate", ifname
, cfg
->arp_validate
);
1126 system_set_dev_sysfs_int("bonding/use_carrier", ifname
, cfg
->use_carrier
);
1127 if (!cfg
->monitor_arp
&& cfg
->monitor_interval
) {
1128 system_set_dev_sysfs_int("bonding/updelay", ifname
, cfg
->updelay
);
1129 system_set_dev_sysfs_int("bonding/downdelay", ifname
, cfg
->downdelay
);
1135 int system_bonding_set_port(struct device
*dev
, struct device
*port
, bool add
, bool primary
)
1137 const char *port_name
= port
->ifname
;
1138 const char op_ch
= add
? '+' : '-';
1139 char buf
[IFNAMSIZ
+ 1];
1141 snprintf(buf
, sizeof(buf
), "%c%s", op_ch
, port_name
);
1142 system_if_down(port
);
1143 system_set_dev_sysfs("bonding/slaves", dev
->ifname
, buf
);
1147 system_set_dev_sysfs("bonding/primary", dev
->ifname
,
1148 add
? port_name
: "");
1153 int system_if_resolve(struct device
*dev
)
1157 memset(&ifr
, 0, sizeof(ifr
));
1158 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1159 if (!ioctl(sock_ioctl
, SIOCGIFINDEX
, &ifr
))
1160 return ifr
.ifr_ifindex
;
1165 static int system_if_flags(const char *ifname
, unsigned add
, unsigned rem
)
1169 memset(&ifr
, 0, sizeof(ifr
));
1170 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
1171 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) < 0)
1174 ifr
.ifr_flags
|= add
;
1175 ifr
.ifr_flags
&= ~rem
;
1176 return ioctl(sock_ioctl
, SIOCSIFFLAGS
, &ifr
);
1188 static bool check_ifaddr(struct nlmsghdr
*hdr
, int ifindex
)
1190 struct ifaddrmsg
*ifa
= NLMSG_DATA(hdr
);
1192 return (long)ifa
->ifa_index
== ifindex
;
1195 static bool check_route(struct nlmsghdr
*hdr
, int ifindex
)
1197 struct rtmsg
*r
= NLMSG_DATA(hdr
);
1198 struct nlattr
*tb
[__RTA_MAX
];
1200 if (r
->rtm_protocol
== RTPROT_KERNEL
&&
1201 r
->rtm_family
== AF_INET6
)
1204 nlmsg_parse(hdr
, sizeof(struct rtmsg
), tb
, __RTA_MAX
- 1, NULL
);
1208 return *(int *)RTA_DATA(tb
[RTA_OIF
]) == ifindex
;
1211 static bool check_rule(struct nlmsghdr
*hdr
, int ifindex
)
1216 static int cb_clear_event(struct nl_msg
*msg
, void *arg
)
1218 struct clear_data
*clr
= arg
;
1219 struct nlmsghdr
*hdr
= nlmsg_hdr(msg
);
1220 bool (*cb
)(struct nlmsghdr
*, int ifindex
);
1226 if (hdr
->nlmsg_type
!= RTM_NEWADDR
)
1232 type
= RTM_DELROUTE
;
1233 if (hdr
->nlmsg_type
!= RTM_NEWROUTE
)
1240 if (hdr
->nlmsg_type
!= RTM_NEWRULE
)
1249 if (!cb(hdr
, clr
->dev
? clr
->dev
->ifindex
: 0))
1252 if (type
== RTM_DELRULE
)
1253 D(SYSTEM
, "Remove a rule");
1255 D(SYSTEM
, "Remove %s from device %s",
1256 type
== RTM_DELADDR
? "an address" : "a route",
1259 memcpy(nlmsg_hdr(clr
->msg
), hdr
, hdr
->nlmsg_len
);
1260 hdr
= nlmsg_hdr(clr
->msg
);
1261 hdr
->nlmsg_type
= type
;
1262 hdr
->nlmsg_flags
= NLM_F_REQUEST
;
1264 nl_socket_disable_auto_ack(sock_rtnl
);
1265 ret
= nl_send_auto_complete(sock_rtnl
, clr
->msg
);
1267 if (type
== RTM_DELRULE
)
1268 D(SYSTEM
, "Error deleting a rule: %d", ret
);
1270 D(SYSTEM
, "Error deleting %s from device '%s': %d",
1271 type
== RTM_DELADDR
? "an address" : "a route",
1272 clr
->dev
->ifname
, ret
);
1275 nl_socket_enable_auto_ack(sock_rtnl
);
1281 cb_finish_event(struct nl_msg
*msg
, void *arg
)
1289 error_handler(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1292 *pending
= err
->error
;
1297 system_if_clear_entries(struct device
*dev
, int type
, int af
)
1299 struct clear_data clr
;
1301 struct rtmsg rtm
= {
1303 .rtm_flags
= RTM_F_CLONED
,
1305 int flags
= NLM_F_DUMP
;
1314 clr
.size
= sizeof(struct rtgenmsg
);
1317 clr
.size
= sizeof(struct rtmsg
);
1323 cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1327 clr
.msg
= nlmsg_alloc_simple(type
, flags
);
1331 nlmsg_append(clr
.msg
, &rtm
, clr
.size
, 0);
1332 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_clear_event
, &clr
);
1333 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, cb_finish_event
, &pending
);
1334 nl_cb_err(cb
, NL_CB_CUSTOM
, error_handler
, &pending
);
1336 if (nl_send_auto_complete(sock_rtnl
, clr
.msg
) < 0)
1340 nl_recvmsgs(sock_rtnl
, cb
);
1343 nlmsg_free(clr
.msg
);
1349 * Clear bridge (membership) state and bring down device
1351 void system_if_clear_state(struct device
*dev
)
1353 static char buf
[256];
1355 device_set_ifindex(dev
, system_if_resolve(dev
));
1357 if (dev
->external
|| !dev
->ifindex
)
1360 system_if_flags(dev
->ifname
, 0, IFF_UP
);
1362 if (system_is_bridge(dev
->ifname
)) {
1363 D(SYSTEM
, "Delete existing bridge named '%s'", dev
->ifname
);
1364 system_bridge_delbr(dev
);
1368 bridge
= system_get_bridge(dev
->ifname
, buf
, sizeof(buf
));
1370 D(SYSTEM
, "Remove device '%s' from bridge '%s'", dev
->ifname
, bridge
);
1371 system_bridge_if(bridge
, dev
, SIOCBRDELIF
, NULL
);
1374 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET
);
1375 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET
);
1376 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET6
);
1377 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET6
);
1378 system_if_clear_entries(dev
, RTM_GETNEIGH
, AF_INET
);
1379 system_if_clear_entries(dev
, RTM_GETNEIGH
, AF_INET6
);
1380 system_set_disable_ipv6(dev
, "0");
1383 static inline unsigned long
1384 sec_to_jiffies(int val
)
1386 return (unsigned long) val
* 100;
1389 int system_bridge_addbr(struct device
*bridge
, struct bridge_config
*cfg
)
1391 struct nlattr
*linkinfo
, *data
;
1396 msg
= system_ifinfo_msg(bridge
->ifname
, RTM_NEWLINK
, NLM_F_CREATE
| NLM_F_EXCL
);
1400 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1401 goto nla_put_failure
;
1403 nla_put_string(msg
, IFLA_INFO_KIND
, "bridge");
1405 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1406 goto nla_put_failure
;
1408 nla_put_u32(msg
, IFLA_BR_STP_STATE
, cfg
->stp
);
1409 nla_put_u32(msg
, IFLA_BR_FORWARD_DELAY
, sec_to_jiffies(cfg
->forward_delay
));
1410 nla_put_u8(msg
, IFLA_BR_MCAST_SNOOPING
, !!cfg
->igmp_snoop
);
1411 nla_put_u8(msg
, IFLA_BR_MCAST_QUERIER
, !!cfg
->multicast_querier
);
1412 nla_put_u32(msg
, IFLA_BR_MCAST_HASH_MAX
, cfg
->hash_max
);
1414 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
)
1415 nla_put_u8(msg
, IFLA_BR_MCAST_ROUTER
, !!bridge
->settings
.multicast_router
);
1417 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
) {
1418 nla_put_u32(msg
, IFLA_BR_MCAST_STARTUP_QUERY_CNT
, cfg
->robustness
);
1419 nla_put_u32(msg
, IFLA_BR_MCAST_LAST_MEMBER_CNT
, cfg
->robustness
);
1422 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
)
1423 nla_put_u64(msg
, IFLA_BR_MCAST_QUERY_INTVL
, cfg
->query_interval
);
1425 if (cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
)
1426 nla_put_u64(msg
, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL
, cfg
->query_response_interval
);
1428 if (cfg
->flags
& BRIDGE_OPT_LAST_MEMBER_INTERVAL
)
1429 nla_put_u64(msg
, IFLA_BR_MCAST_LAST_MEMBER_INTVL
, cfg
->last_member_interval
);
1431 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
||
1432 cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
||
1433 cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
1434 val
= cfg
->robustness
* cfg
->query_interval
+
1435 cfg
->query_response_interval
;
1437 nla_put_u64(msg
, IFLA_BR_MCAST_MEMBERSHIP_INTVL
, val
);
1439 val
-= cfg
->query_response_interval
/ 2;
1441 nla_put_u64(msg
, IFLA_BR_MCAST_QUERIER_INTVL
, val
);
1444 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1445 val
= cfg
->query_interval
/ 4;
1447 nla_put_u64(msg
, IFLA_BR_MCAST_STARTUP_QUERY_INTVL
, val
);
1450 nla_put_u8(msg
, IFLA_BR_VLAN_FILTERING
, !!cfg
->vlan_filtering
);
1451 nla_put_u16(msg
, IFLA_BR_PRIORITY
, cfg
->priority
);
1452 nla_put_u32(msg
, IFLA_BR_HELLO_TIME
, sec_to_jiffies(cfg
->hello_time
));
1453 nla_put_u32(msg
, IFLA_BR_MAX_AGE
, sec_to_jiffies(cfg
->max_age
));
1455 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
)
1456 nla_put_u32(msg
, IFLA_BR_AGEING_TIME
, sec_to_jiffies(cfg
->ageing_time
));
1458 nla_nest_end(msg
, data
);
1459 nla_nest_end(msg
, linkinfo
);
1461 rv
= system_rtnl_call(msg
);
1463 D(SYSTEM
, "Error adding bridge '%s': %d", bridge
->ifname
, rv
);
1472 int system_macvlan_add(struct device
*macvlan
, struct device
*dev
, struct macvlan_config
*cfg
)
1475 struct nlattr
*linkinfo
, *data
;
1478 static const struct {
1480 enum macvlan_mode val
;
1482 { "private", MACVLAN_MODE_PRIVATE
},
1483 { "vepa", MACVLAN_MODE_VEPA
},
1484 { "bridge", MACVLAN_MODE_BRIDGE
},
1485 { "passthru", MACVLAN_MODE_PASSTHRU
},
1488 msg
= system_ifinfo_msg(macvlan
->ifname
, RTM_NEWLINK
, NLM_F_CREATE
| NLM_F_EXCL
);
1492 if (cfg
->flags
& MACVLAN_OPT_MACADDR
)
1493 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1494 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1496 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1497 goto nla_put_failure
;
1499 nla_put_string(msg
, IFLA_INFO_KIND
, "macvlan");
1501 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1502 goto nla_put_failure
;
1505 for (i
= 0; i
< ARRAY_SIZE(modes
); i
++) {
1506 if (strcmp(cfg
->mode
, modes
[i
].name
) != 0)
1509 nla_put_u32(msg
, IFLA_MACVLAN_MODE
, modes
[i
].val
);
1514 nla_nest_end(msg
, data
);
1515 nla_nest_end(msg
, linkinfo
);
1517 rv
= system_rtnl_call(msg
);
1519 D(SYSTEM
, "Error adding macvlan '%s' over '%s': %d", macvlan
->ifname
, dev
->ifname
, rv
);
1528 int system_link_netns_move(struct device
*dev
, int netns_fd
, const char *target_ifname
)
1536 index
= system_if_resolve(dev
);
1537 msg
= __system_ifinfo_msg(AF_UNSPEC
, index
, target_ifname
, RTM_NEWLINK
, 0);
1541 nla_put_u32(msg
, IFLA_NET_NS_FD
, netns_fd
);
1542 return system_rtnl_call(msg
);
1545 int system_macvlan_del(struct device
*macvlan
)
1547 return system_link_del(macvlan
->ifname
);
1550 int system_netns_open(const pid_t target_ns
)
1552 char pid_net_path
[PATH_MAX
];
1554 snprintf(pid_net_path
, sizeof(pid_net_path
), "/proc/%u/ns/net", target_ns
);
1556 return open(pid_net_path
, O_RDONLY
);
1559 int system_netns_set(int netns_fd
)
1561 return setns(netns_fd
, CLONE_NEWNET
);
1564 int system_veth_add(struct device
*veth
, struct veth_config
*cfg
)
1567 struct ifinfomsg empty_iim
= {0,};
1568 struct nlattr
*linkinfo
, *data
, *veth_info
;
1571 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1576 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1578 if (cfg
->flags
& VETH_OPT_MACADDR
)
1579 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1580 nla_put_string(msg
, IFLA_IFNAME
, veth
->ifname
);
1582 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1583 goto nla_put_failure
;
1585 nla_put_string(msg
, IFLA_INFO_KIND
, "veth");
1587 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1588 goto nla_put_failure
;
1590 if (!(veth_info
= nla_nest_start(msg
, VETH_INFO_PEER
)))
1591 goto nla_put_failure
;
1593 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1595 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1596 nla_put_string(msg
, IFLA_IFNAME
, cfg
->peer_name
);
1597 if (cfg
->flags
& VETH_OPT_PEER_MACADDR
)
1598 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->peer_macaddr
), cfg
->peer_macaddr
);
1600 nla_nest_end(msg
, veth_info
);
1601 nla_nest_end(msg
, data
);
1602 nla_nest_end(msg
, linkinfo
);
1604 rv
= system_rtnl_call(msg
);
1606 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1607 D(SYSTEM
, "Error adding veth '%s' with peer '%s': %d", veth
->ifname
, cfg
->peer_name
, rv
);
1609 D(SYSTEM
, "Error adding veth '%s': %d", veth
->ifname
, rv
);
1619 int system_veth_del(struct device
*veth
)
1621 return system_link_del(veth
->ifname
);
1624 static int system_vlan(struct device
*dev
, int id
)
1626 struct vlan_ioctl_args ifr
= {
1627 .cmd
= SET_VLAN_NAME_TYPE_CMD
,
1628 .u
.name_type
= VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
,
1631 if (ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
) < 0)
1635 ifr
.cmd
= DEL_VLAN_CMD
;
1638 ifr
.cmd
= ADD_VLAN_CMD
;
1641 strncpy(ifr
.device1
, dev
->ifname
, sizeof(ifr
.device1
));
1642 return ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
1645 int system_vlan_add(struct device
*dev
, int id
)
1647 return system_vlan(dev
, id
);
1650 int system_vlan_del(struct device
*dev
)
1652 return system_vlan(dev
, -1);
1655 int system_vlandev_add(struct device
*vlandev
, struct device
*dev
, struct vlandev_config
*cfg
)
1658 struct nlattr
*linkinfo
, *data
, *qos
;
1659 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
};
1660 struct vlan_qos_mapping
*elem
;
1661 struct ifla_vlan_qos_mapping nl_qos_map
;
1664 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1669 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1670 nla_put_string(msg
, IFLA_IFNAME
, vlandev
->ifname
);
1671 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1673 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1674 goto nla_put_failure
;
1676 nla_put_string(msg
, IFLA_INFO_KIND
, "vlan");
1678 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1679 goto nla_put_failure
;
1681 nla_put_u16(msg
, IFLA_VLAN_ID
, cfg
->vid
);
1683 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
1684 nla_put_u16(msg
, IFLA_VLAN_PROTOCOL
, htons(cfg
->proto
));
1686 if(cfg
->proto
== VLAN_PROTO_8021AD
)
1687 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
);
1690 if (!(qos
= nla_nest_start(msg
, IFLA_VLAN_INGRESS_QOS
)))
1691 goto nla_put_failure
;
1693 vlist_simple_for_each_element(&cfg
->ingress_qos_mapping_list
, elem
, node
) {
1694 nl_qos_map
.from
= elem
->from
;
1695 nl_qos_map
.to
= elem
->to
;
1696 nla_put(msg
, IFLA_VLAN_QOS_MAPPING
, sizeof(nl_qos_map
), &nl_qos_map
);
1698 nla_nest_end(msg
, qos
);
1700 if (!(qos
= nla_nest_start(msg
, IFLA_VLAN_EGRESS_QOS
)))
1701 goto nla_put_failure
;
1703 vlist_simple_for_each_element(&cfg
->egress_qos_mapping_list
, elem
, node
) {
1704 nl_qos_map
.from
= elem
->from
;
1705 nl_qos_map
.to
= elem
->to
;
1706 nla_put(msg
, IFLA_VLAN_QOS_MAPPING
, sizeof(nl_qos_map
), &nl_qos_map
);
1708 nla_nest_end(msg
, qos
);
1710 nla_nest_end(msg
, data
);
1711 nla_nest_end(msg
, linkinfo
);
1713 rv
= system_rtnl_call(msg
);
1715 D(SYSTEM
, "Error adding vlandev '%s' over '%s': %d", vlandev
->ifname
, dev
->ifname
, rv
);
1724 int system_vlandev_del(struct device
*vlandev
)
1726 return system_link_del(vlandev
->ifname
);
1729 #if LINUX_VERSION_CODE >= KERNEL_VERSION(6,1,0)
1730 struct if_get_master_data
{
1736 static void if_get_master_dsa_linkinfo_attr(struct if_get_master_data
*data
,
1737 struct rtattr
*attr
)
1740 int rem
= RTA_PAYLOAD(attr
);
1742 for (cur
= RTA_DATA(attr
); RTA_OK(cur
, rem
); cur
= RTA_NEXT(cur
, rem
)) {
1743 if (cur
->rta_type
!= IFLA_DSA_MASTER
)
1746 data
->master_ifindex
= *(__u32
*)RTA_DATA(cur
);
1751 static void if_get_master_linkinfo_attr(struct if_get_master_data
*data
,
1752 struct rtattr
*attr
)
1755 int rem
= RTA_PAYLOAD(attr
);
1757 for (cur
= RTA_DATA(attr
); RTA_OK(cur
, rem
); cur
= RTA_NEXT(cur
, rem
)) {
1758 if (cur
->rta_type
!= IFLA_INFO_KIND
&& cur
->rta_type
!= IFLA_INFO_DATA
)
1761 if (cur
->rta_type
== IFLA_INFO_KIND
&& strcmp("dsa", (char *)RTA_DATA(cur
)))
1764 if (cur
->rta_type
== IFLA_INFO_DATA
)
1765 if_get_master_dsa_linkinfo_attr(data
, cur
);
1769 static int cb_if_get_master_valid(struct nl_msg
*msg
, void *arg
)
1771 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
1772 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
1773 struct if_get_master_data
*data
= (struct if_get_master_data
*)arg
;
1774 struct rtattr
*attr
;
1777 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
1780 if (ifi
->ifi_family
!= AF_UNSPEC
)
1783 if (ifi
->ifi_index
!= data
->ifindex
)
1786 attr
= IFLA_RTA(ifi
);
1787 rem
= nh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*ifi
));
1789 while (RTA_OK(attr
, rem
)) {
1790 if (attr
->rta_type
== IFLA_LINKINFO
) {
1791 if_get_master_linkinfo_attr(data
, attr
);
1792 data
->pending
= false;
1796 attr
= RTA_NEXT(attr
, rem
);
1802 static int cb_if_get_master_ack(struct nl_msg
*msg
, void *arg
)
1804 struct if_get_master_data
*data
= (struct if_get_master_data
*)arg
;
1805 data
->pending
= false;
1810 static int cb_if_get_master_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1812 struct if_get_master_data
*data
= (struct if_get_master_data
*)arg
;
1813 data
->pending
= false;
1818 static int system_if_get_master_ifindex(struct device
*dev
)
1820 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1822 struct ifinfomsg ifi
= {
1823 .ifi_family
= AF_UNSPEC
,
1826 struct if_get_master_data data
= {
1827 .ifindex
= if_nametoindex(dev
->ifname
),
1828 .master_ifindex
= -1,
1836 msg
= nlmsg_alloc_simple(RTM_GETLINK
, NLM_F_REQUEST
);
1840 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
1841 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
1844 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_get_master_valid
, &data
);
1845 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_get_master_ack
, &data
);
1846 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_get_master_error
, &data
);
1848 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
1852 while (data
.pending
)
1853 nl_recvmsgs(sock_rtnl
, cb
);
1855 if (data
.master_ifindex
>= 0)
1856 ret
= data
.master_ifindex
;
1865 static void system_refresh_orig_macaddr(struct device
*dev
, struct device_settings
*s
)
1869 memset(&ifr
, 0, sizeof(ifr
));
1870 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1872 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0)
1873 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
1876 static void system_set_master(struct device
*dev
, int master_ifindex
)
1878 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
1881 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
);
1885 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
1886 nla_put_string(nlm
, IFLA_IFNAME
, dev
->ifname
);
1888 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
1892 nla_put_string(nlm
, IFLA_INFO_KIND
, "dsa");
1893 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
1897 nla_put_u32(nlm
, IFLA_DSA_MASTER
, master_ifindex
);
1899 nla_nest_end(nlm
, infodata
);
1900 nla_nest_end(nlm
, linkinfo
);
1902 system_rtnl_call(nlm
);
1911 static void ethtool_link_mode_clear_bit(__s8 nwords
, int nr
, __u32
*mask
)
1916 if (nr
>= (nwords
* 32))
1919 mask
[nr
/ 32] &= ~(1U << (nr
% 32));
1922 static bool ethtool_link_mode_test_bit(__s8 nwords
, int nr
, const __u32
*mask
)
1927 if (nr
>= (nwords
* 32))
1930 return !!(mask
[nr
/ 32] & (1U << (nr
% 32)));
1934 system_get_ethtool_gro(struct device
*dev
)
1936 struct ethtool_value ecmd
;
1937 struct ifreq ifr
= {
1938 .ifr_data
= (caddr_t
)&ecmd
,
1941 memset(&ecmd
, 0, sizeof(ecmd
));
1942 ecmd
.cmd
= ETHTOOL_GGRO
;
1943 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1945 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
))
1952 system_set_ethtool_gro(struct device
*dev
, struct device_settings
*s
)
1954 struct ethtool_value ecmd
;
1955 struct ifreq ifr
= {
1956 .ifr_data
= (caddr_t
)&ecmd
,
1959 memset(&ecmd
, 0, sizeof(ecmd
));
1960 ecmd
.cmd
= ETHTOOL_SGRO
;
1962 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1964 ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
);
1968 system_set_ethtool_pause(struct device
*dev
, struct device_settings
*s
)
1970 struct ethtool_pauseparam pp
;
1971 struct ifreq ifr
= {
1972 .ifr_data
= (caddr_t
)&pp
,
1975 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1976 memset(&pp
, 0, sizeof(pp
));
1977 pp
.cmd
= ETHTOOL_GPAUSEPARAM
;
1978 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
))
1981 if (s
->flags
& DEV_OPT_RXPAUSE
|| s
->flags
& DEV_OPT_TXPAUSE
) {
1982 pp
.autoneg
= AUTONEG_DISABLE
;
1984 if (s
->flags
& DEV_OPT_PAUSE
) {
1985 if (s
->flags
& DEV_OPT_RXPAUSE
)
1986 pp
.rx_pause
= s
->rxpause
&& s
->pause
;
1988 pp
.rx_pause
= s
->pause
;
1990 if (s
->flags
& DEV_OPT_TXPAUSE
)
1991 pp
.tx_pause
= s
->txpause
&& s
->pause
;
1993 pp
.tx_pause
= s
->pause
;
1995 if (s
->flags
& DEV_OPT_RXPAUSE
)
1996 pp
.rx_pause
= s
->rxpause
;
1998 if (s
->flags
& DEV_OPT_TXPAUSE
)
1999 pp
.tx_pause
= s
->txpause
;
2002 if (s
->flags
& DEV_OPT_ASYM_PAUSE
&&
2003 !s
->asym_pause
&& (pp
.rx_pause
!= pp
.tx_pause
))
2004 pp
.rx_pause
= pp
.tx_pause
= false;
2006 pp
.autoneg
= AUTONEG_ENABLE
;
2007 /* Pause and Asym_Pause advertising bits will be set via
2008 * ETHTOOL_SLINKSETTINGS in system_set_ethtool_settings()
2012 pp
.cmd
= ETHTOOL_SPAUSEPARAM
;
2013 ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
);
2017 system_set_ethtool_eee_settings(struct device
*dev
, struct device_settings
*s
)
2019 struct ethtool_eee eeecmd
;
2020 struct ifreq ifr
= {
2021 .ifr_data
= (caddr_t
)&eeecmd
,
2024 memset(&eeecmd
, 0, sizeof(eeecmd
));
2025 eeecmd
.cmd
= ETHTOOL_SEEE
;
2026 eeecmd
.eee_enabled
= s
->eee
;
2027 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2029 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0)
2030 netifd_log_message(L_WARNING
, "cannot set eee %d for device %s", s
->eee
, dev
->ifname
);
2034 system_set_ethtool_settings(struct device
*dev
, struct device_settings
*s
)
2037 struct ethtool_link_settings req
;
2038 __u32 link_mode_data
[3 * 127];
2040 struct ifreq ifr
= {
2041 .ifr_data
= (caddr_t
)&ecmd
,
2045 __u32
*supported
, *advertising
;
2047 system_set_ethtool_pause(dev
, s
);
2049 if (s
->flags
& DEV_OPT_EEE
)
2050 system_set_ethtool_eee_settings(dev
, s
);
2052 memset(&ecmd
, 0, sizeof(ecmd
));
2053 ecmd
.req
.cmd
= ETHTOOL_GLINKSETTINGS
;
2054 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2056 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) < 0 ||
2057 ecmd
.req
.link_mode_masks_nwords
>= 0 ||
2058 ecmd
.req
.cmd
!= ETHTOOL_GLINKSETTINGS
)
2061 ecmd
.req
.link_mode_masks_nwords
= -ecmd
.req
.link_mode_masks_nwords
;
2063 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) < 0 ||
2064 ecmd
.req
.link_mode_masks_nwords
<= 0 ||
2065 ecmd
.req
.cmd
!= ETHTOOL_GLINKSETTINGS
)
2068 nwords
= ecmd
.req
.link_mode_masks_nwords
;
2069 supported
= &ecmd
.link_mode_data
[0];
2070 advertising
= &ecmd
.link_mode_data
[nwords
];
2071 memcpy(advertising
, supported
, sizeof(__u32
) * nwords
);
2073 for (i
= 0; i
< ARRAY_SIZE(ethtool_modes
); i
++) {
2074 if (s
->flags
& DEV_OPT_DUPLEX
) {
2076 ethtool_link_mode_clear_bit(nwords
, ethtool_modes
[i
].bit_half
, advertising
);
2078 ethtool_link_mode_clear_bit(nwords
, ethtool_modes
[i
].bit_full
, advertising
);
2080 if (!(s
->flags
& DEV_OPT_SPEED
) ||
2081 s
->speed
== ethtool_modes
[i
].speed
)
2084 ethtool_link_mode_clear_bit(nwords
, ethtool_modes
[i
].bit_full
, advertising
);
2085 ethtool_link_mode_clear_bit(nwords
, ethtool_modes
[i
].bit_half
, advertising
);
2088 if (s
->flags
& DEV_OPT_PAUSE
)
2090 ethtool_link_mode_clear_bit(nwords
, ETHTOOL_LINK_MODE_Pause_BIT
, advertising
);
2092 if (s
->flags
& DEV_OPT_ASYM_PAUSE
)
2094 ethtool_link_mode_clear_bit(nwords
, ETHTOOL_LINK_MODE_Asym_Pause_BIT
, advertising
);
2096 if (s
->flags
& DEV_OPT_AUTONEG
) {
2097 ecmd
.req
.autoneg
= s
->autoneg
? AUTONEG_ENABLE
: AUTONEG_DISABLE
;
2099 if (s
->flags
& DEV_OPT_SPEED
)
2100 ecmd
.req
.speed
= s
->speed
;
2102 if (s
->flags
& DEV_OPT_DUPLEX
)
2103 ecmd
.req
.duplex
= s
->duplex
? DUPLEX_FULL
: DUPLEX_HALF
;
2107 ecmd
.req
.cmd
= ETHTOOL_SLINKSETTINGS
;
2108 ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
);
2112 system_set_ethtool_settings_after_up(struct device
*dev
, struct device_settings
*s
)
2114 if (s
->flags
& DEV_OPT_GRO
)
2115 system_set_ethtool_gro(dev
, s
);
2119 system_if_get_settings(struct device
*dev
, struct device_settings
*s
)
2125 memset(&ifr
, 0, sizeof(ifr
));
2126 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2128 if (ioctl(sock_ioctl
, SIOCGIFMTU
, &ifr
) == 0) {
2129 s
->mtu
= ifr
.ifr_mtu
;
2130 s
->flags
|= DEV_OPT_MTU
;
2133 s
->mtu6
= system_update_ipv6_mtu(dev
, 0);
2135 s
->flags
|= DEV_OPT_MTU6
;
2137 if (ioctl(sock_ioctl
, SIOCGIFTXQLEN
, &ifr
) == 0) {
2138 s
->txqueuelen
= ifr
.ifr_qlen
;
2139 s
->flags
|= DEV_OPT_TXQUEUELEN
;
2142 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0) {
2143 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
2144 s
->flags
|= DEV_OPT_MACADDR
;
2147 if (!system_get_disable_ipv6(dev
, buf
, sizeof(buf
))) {
2148 s
->ipv6
= !strtoul(buf
, NULL
, 0);
2149 s
->flags
|= DEV_OPT_IPV6
;
2152 if (!system_get_ip6segmentrouting(dev
, buf
, sizeof(buf
))) {
2153 s
->ip6segmentrouting
= strtoul(buf
, NULL
, 0);
2154 s
->flags
|= DEV_OPT_IP6SEGMENTROUTING
;
2157 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) == 0) {
2158 s
->promisc
= ifr
.ifr_flags
& IFF_PROMISC
;
2159 s
->flags
|= DEV_OPT_PROMISC
;
2161 s
->multicast
= ifr
.ifr_flags
& IFF_MULTICAST
;
2162 s
->flags
|= DEV_OPT_MULTICAST
;
2165 if (!system_get_rpfilter(dev
, buf
, sizeof(buf
))) {
2166 s
->rpfilter
= strtoul(buf
, NULL
, 0);
2167 s
->flags
|= DEV_OPT_RPFILTER
;
2170 if (!system_get_acceptlocal(dev
, buf
, sizeof(buf
))) {
2171 s
->acceptlocal
= strtoul(buf
, NULL
, 0);
2172 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
2175 if (!system_get_igmpversion(dev
, buf
, sizeof(buf
))) {
2176 s
->igmpversion
= strtoul(buf
, NULL
, 0);
2177 s
->flags
|= DEV_OPT_IGMPVERSION
;
2180 if (!system_get_mldversion(dev
, buf
, sizeof(buf
))) {
2181 s
->mldversion
= strtoul(buf
, NULL
, 0);
2182 s
->flags
|= DEV_OPT_MLDVERSION
;
2185 if (!system_get_neigh4reachabletime(dev
, buf
, sizeof(buf
))) {
2186 s
->neigh4reachabletime
= strtoul(buf
, NULL
, 0);
2187 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
2190 if (!system_get_neigh6reachabletime(dev
, buf
, sizeof(buf
))) {
2191 s
->neigh6reachabletime
= strtoul(buf
, NULL
, 0);
2192 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
2195 if (!system_get_neigh4locktime(dev
, buf
, sizeof(buf
))) {
2196 s
->neigh4locktime
= strtol(buf
, NULL
, 0);
2197 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
2200 if (!system_get_neigh4gcstaletime(dev
, buf
, sizeof(buf
))) {
2201 s
->neigh4gcstaletime
= strtoul(buf
, NULL
, 0);
2202 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
2205 if (!system_get_neigh6gcstaletime(dev
, buf
, sizeof(buf
))) {
2206 s
->neigh6gcstaletime
= strtoul(buf
, NULL
, 0);
2207 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
2210 if (!system_get_dadtransmits(dev
, buf
, sizeof(buf
))) {
2211 s
->dadtransmits
= strtoul(buf
, NULL
, 0);
2212 s
->flags
|= DEV_OPT_DADTRANSMITS
;
2215 if (!system_get_sendredirects(dev
, buf
, sizeof(buf
))) {
2216 s
->sendredirects
= strtoul(buf
, NULL
, 0);
2217 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
2220 if (!system_get_drop_v4_unicast_in_l2_multicast(dev
, buf
, sizeof(buf
))) {
2221 s
->drop_v4_unicast_in_l2_multicast
= strtoul(buf
, NULL
, 0);
2222 s
->flags
|= DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
;
2225 if (!system_get_drop_v6_unicast_in_l2_multicast(dev
, buf
, sizeof(buf
))) {
2226 s
->drop_v6_unicast_in_l2_multicast
= strtoul(buf
, NULL
, 0);
2227 s
->flags
|= DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
;
2230 if (!system_get_drop_gratuitous_arp(dev
, buf
, sizeof(buf
))) {
2231 s
->drop_gratuitous_arp
= strtoul(buf
, NULL
, 0);
2232 s
->flags
|= DEV_OPT_DROP_GRATUITOUS_ARP
;
2235 if (!system_get_drop_unsolicited_na(dev
, buf
, sizeof(buf
))) {
2236 s
->drop_unsolicited_na
= strtoul(buf
, NULL
, 0);
2237 s
->flags
|= DEV_OPT_DROP_UNSOLICITED_NA
;
2240 if (!system_get_arp_accept(dev
, buf
, sizeof(buf
))) {
2241 s
->arp_accept
= strtoul(buf
, NULL
, 0);
2242 s
->flags
|= DEV_OPT_ARP_ACCEPT
;
2245 ret
= system_get_ethtool_gro(dev
);
2248 s
->flags
|= DEV_OPT_GRO
;
2251 #if LINUX_VERSION_CODE >= KERNEL_VERSION(6,1,0)
2252 ret
= system_if_get_master_ifindex(dev
);
2254 s
->master_ifindex
= ret
;
2255 s
->flags
|= DEV_OPT_MASTER
;
2261 system_if_apply_settings(struct device
*dev
, struct device_settings
*s
, uint64_t apply_mask
)
2266 apply_mask
&= s
->flags
;
2268 if (apply_mask
& DEV_OPT_MASTER
) {
2269 #if LINUX_VERSION_CODE >= KERNEL_VERSION(6,1,0)
2270 system_set_master(dev
, s
->master_ifindex
);
2271 if (!(apply_mask
& (DEV_OPT_MACADDR
| DEV_OPT_DEFAULT_MACADDR
)) || dev
->external
)
2272 system_refresh_orig_macaddr(dev
, &dev
->orig_settings
);
2274 netifd_log_message(L_WARNING
, "%s Your kernel is older than linux 6.1.0, changing DSA port conduit is not supported!", dev
->ifname
);
2278 memset(&ifr
, 0, sizeof(ifr
));
2279 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2280 if (apply_mask
& DEV_OPT_MTU
) {
2281 ifr
.ifr_mtu
= s
->mtu
;
2282 if (ioctl(sock_ioctl
, SIOCSIFMTU
, &ifr
) < 0)
2283 s
->flags
&= ~DEV_OPT_MTU
;
2285 if (apply_mask
& DEV_OPT_MTU6
) {
2286 system_update_ipv6_mtu(dev
, s
->mtu6
);
2288 if (apply_mask
& DEV_OPT_TXQUEUELEN
) {
2289 ifr
.ifr_qlen
= s
->txqueuelen
;
2290 if (ioctl(sock_ioctl
, SIOCSIFTXQLEN
, &ifr
) < 0)
2291 s
->flags
&= ~DEV_OPT_TXQUEUELEN
;
2293 if ((apply_mask
& (DEV_OPT_MACADDR
| DEV_OPT_DEFAULT_MACADDR
)) && !dev
->external
) {
2294 ifr
.ifr_hwaddr
.sa_family
= ARPHRD_ETHER
;
2295 memcpy(&ifr
.ifr_hwaddr
.sa_data
, s
->macaddr
, sizeof(s
->macaddr
));
2296 if (ioctl(sock_ioctl
, SIOCSIFHWADDR
, &ifr
) < 0)
2297 s
->flags
&= ~DEV_OPT_MACADDR
;
2299 if (apply_mask
& DEV_OPT_IPV6
)
2300 system_set_disable_ipv6(dev
, s
->ipv6
? "0" : "1");
2301 if (s
->flags
& DEV_OPT_IP6SEGMENTROUTING
& apply_mask
) {
2302 struct device dummy
= {
2305 bool ip6segmentrouting
= device_check_ip6segmentrouting();
2307 system_set_ip6segmentrouting(dev
, s
->ip6segmentrouting
? "1" : "0");
2308 system_set_ip6segmentrouting(&dummy
, ip6segmentrouting
? "1" : "0");
2310 if (apply_mask
& DEV_OPT_PROMISC
) {
2311 if (system_if_flags(dev
->ifname
, s
->promisc
? IFF_PROMISC
: 0,
2312 !s
->promisc
? IFF_PROMISC
: 0) < 0)
2313 s
->flags
&= ~DEV_OPT_PROMISC
;
2315 if (apply_mask
& DEV_OPT_RPFILTER
) {
2316 snprintf(buf
, sizeof(buf
), "%u", s
->rpfilter
);
2317 system_set_rpfilter(dev
, buf
);
2319 if (apply_mask
& DEV_OPT_ACCEPTLOCAL
)
2320 system_set_acceptlocal(dev
, s
->acceptlocal
? "1" : "0");
2321 if (apply_mask
& DEV_OPT_IGMPVERSION
) {
2322 snprintf(buf
, sizeof(buf
), "%u", s
->igmpversion
);
2323 system_set_igmpversion(dev
, buf
);
2325 if (apply_mask
& DEV_OPT_MLDVERSION
) {
2326 snprintf(buf
, sizeof(buf
), "%u", s
->mldversion
);
2327 system_set_mldversion(dev
, buf
);
2329 if (apply_mask
& DEV_OPT_NEIGHREACHABLETIME
) {
2330 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4reachabletime
);
2331 system_set_neigh4reachabletime(dev
, buf
);
2332 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6reachabletime
);
2333 system_set_neigh6reachabletime(dev
, buf
);
2335 if (apply_mask
& DEV_OPT_NEIGHLOCKTIME
) {
2336 snprintf(buf
, sizeof(buf
), "%d", s
->neigh4locktime
);
2337 system_set_neigh4locktime(dev
, buf
);
2339 if (apply_mask
& DEV_OPT_NEIGHGCSTALETIME
) {
2340 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4gcstaletime
);
2341 system_set_neigh4gcstaletime(dev
, buf
);
2342 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6gcstaletime
);
2343 system_set_neigh6gcstaletime(dev
, buf
);
2345 if (apply_mask
& DEV_OPT_DADTRANSMITS
) {
2346 snprintf(buf
, sizeof(buf
), "%u", s
->dadtransmits
);
2347 system_set_dadtransmits(dev
, buf
);
2349 if (apply_mask
& DEV_OPT_MULTICAST
) {
2350 if (system_if_flags(dev
->ifname
, s
->multicast
? IFF_MULTICAST
: 0,
2351 !s
->multicast
? IFF_MULTICAST
: 0) < 0)
2352 s
->flags
&= ~DEV_OPT_MULTICAST
;
2354 if (apply_mask
& DEV_OPT_SENDREDIRECTS
)
2355 system_set_sendredirects(dev
, s
->sendredirects
? "1" : "0");
2356 if (apply_mask
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
)
2357 system_set_drop_v4_unicast_in_l2_multicast(dev
, s
->drop_v4_unicast_in_l2_multicast
? "1" : "0");
2358 if (apply_mask
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
)
2359 system_set_drop_v6_unicast_in_l2_multicast(dev
, s
->drop_v6_unicast_in_l2_multicast
? "1" : "0");
2360 if (apply_mask
& DEV_OPT_DROP_GRATUITOUS_ARP
)
2361 system_set_drop_gratuitous_arp(dev
, s
->drop_gratuitous_arp
? "1" : "0");
2362 if (apply_mask
& DEV_OPT_DROP_UNSOLICITED_NA
)
2363 system_set_drop_unsolicited_na(dev
, s
->drop_unsolicited_na
? "1" : "0");
2364 if (apply_mask
& DEV_OPT_ARP_ACCEPT
)
2365 system_set_arp_accept(dev
, s
->arp_accept
? "1" : "0");
2366 system_set_ethtool_settings(dev
, s
);
2369 void system_if_apply_settings_after_up(struct device
*dev
, struct device_settings
*s
)
2371 system_set_ethtool_settings_after_up(dev
, s
);
2374 int system_if_up(struct device
*dev
)
2376 return system_if_flags(dev
->ifname
, IFF_UP
, 0);
2379 int system_if_down(struct device
*dev
)
2381 return system_if_flags(dev
->ifname
, 0, IFF_UP
);
2384 struct if_check_data
{
2390 static int cb_if_check_valid(struct nl_msg
*msg
, void *arg
)
2392 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
2393 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
2394 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
2396 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
2399 system_device_update_state(chk
->dev
, ifi
->ifi_flags
, ifi
->ifi_index
);
2403 static int cb_if_check_ack(struct nl_msg
*msg
, void *arg
)
2405 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
2410 static int cb_if_check_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
2412 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
2414 if (chk
->dev
->type
== &simple_device_type
)
2415 device_set_present(chk
->dev
, false);
2416 device_set_link(chk
->dev
, false);
2417 chk
->pending
= err
->error
;
2422 struct bridge_vlan_check_data
{
2423 struct device
*check_dev
;
2429 static void bridge_vlan_check_port(struct bridge_vlan_check_data
*data
,
2430 struct bridge_vlan_port
*port
,
2431 struct bridge_vlan_info
*vinfo
)
2433 uint16_t flags
= 0, diff
, mask
;
2435 if (port
->flags
& BRVLAN_F_PVID
)
2436 flags
|= BRIDGE_VLAN_INFO_PVID
;
2437 if (port
->flags
& BRVLAN_F_UNTAGGED
)
2438 flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
2440 diff
= vinfo
->flags
^ flags
;
2441 mask
= BRVLAN_F_UNTAGGED
| (flags
& BRIDGE_VLAN_INFO_PVID
);
2444 data
->pending
= false;
2450 static void bridge_vlan_check_attr(struct bridge_vlan_check_data
*data
,
2451 struct rtattr
*attr
)
2453 struct bridge_vlan_hotplug_port
*port
;
2454 struct bridge_vlan_info
*vinfo
;
2455 struct bridge_vlan
*vlan
;
2457 int rem
= RTA_PAYLOAD(attr
);
2460 for (cur
= RTA_DATA(attr
); RTA_OK(cur
, rem
); cur
= RTA_NEXT(cur
, rem
)) {
2461 if (cur
->rta_type
!= IFLA_BRIDGE_VLAN_INFO
)
2464 vinfo
= RTA_DATA(cur
);
2465 vlan
= vlist_find(&data
->check_dev
->vlans
, &vinfo
->vid
, vlan
, node
);
2468 data
->pending
= false;
2472 for (i
= 0; i
< vlan
->n_ports
; i
++)
2473 if (!vlan
->ports
[i
].check
)
2474 bridge_vlan_check_port(data
, &vlan
->ports
[i
], vinfo
);
2476 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
)
2477 if (!port
->port
.check
)
2478 bridge_vlan_check_port(data
, &port
->port
, vinfo
);
2482 static int bridge_vlan_check_cb(struct nl_msg
*msg
, void *arg
)
2484 struct bridge_vlan_check_data
*data
= arg
;
2485 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
2486 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
2487 struct rtattr
*attr
;
2490 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
2493 if (ifi
->ifi_family
!= AF_BRIDGE
)
2496 if (ifi
->ifi_index
!= data
->ifindex
)
2499 attr
= IFLA_RTA(ifi
);
2500 rem
= nh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*ifi
));
2501 while (RTA_OK(attr
, rem
)) {
2502 if (attr
->rta_type
== IFLA_AF_SPEC
)
2503 bridge_vlan_check_attr(data
, attr
);
2505 attr
= RTA_NEXT(attr
, rem
);
2511 static int bridge_vlan_ack_cb(struct nl_msg
*msg
, void *arg
)
2513 struct bridge_vlan_check_data
*data
= arg
;
2514 data
->pending
= false;
2518 static int bridge_vlan_error_cb(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
2520 struct bridge_vlan_check_data
*data
= arg
;
2521 data
->pending
= false;
2525 int system_bridge_vlan_check(struct device
*dev
, char *ifname
)
2527 struct bridge_vlan_check_data data
= {
2529 .ifindex
= if_nametoindex(ifname
),
2533 static struct ifinfomsg ifi
= {
2534 .ifi_family
= AF_BRIDGE
2536 static struct rtattr ext_req
= {
2537 .rta_type
= IFLA_EXT_MASK
,
2538 .rta_len
= RTA_LENGTH(sizeof(uint32_t)),
2540 uint32_t filter
= RTEXT_FILTER_BRVLAN
;
2541 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
2542 struct bridge_vlan
*vlan
;
2549 msg
= nlmsg_alloc_simple(RTM_GETLINK
, NLM_F_DUMP
);
2551 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
2552 nlmsg_append(msg
, &ext_req
, sizeof(ext_req
), NLMSG_ALIGNTO
) ||
2553 nlmsg_append(msg
, &filter
, sizeof(filter
), 0))
2556 vlist_for_each_element(&dev
->vlans
, vlan
, node
) {
2557 struct bridge_vlan_hotplug_port
*port
;
2559 for (i
= 0; i
< vlan
->n_ports
; i
++) {
2560 if (!strcmp(vlan
->ports
[i
].ifname
, ifname
))
2561 vlan
->ports
[i
].check
= 0;
2563 vlan
->ports
[i
].check
= -1;
2566 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
2567 if (!strcmp(port
->port
.ifname
, ifname
))
2568 port
->port
.check
= 0;
2570 port
->port
.check
= -1;
2574 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, bridge_vlan_check_cb
, &data
);
2575 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, bridge_vlan_ack_cb
, &data
);
2576 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, bridge_vlan_ack_cb
, &data
);
2577 nl_cb_err(cb
, NL_CB_CUSTOM
, bridge_vlan_error_cb
, &data
);
2579 if (nl_send_auto_complete(sock_rtnl
, msg
) < 0)
2583 while (data
.pending
)
2584 nl_recvmsgs(sock_rtnl
, cb
);
2586 vlist_for_each_element(&dev
->vlans
, vlan
, node
) {
2587 struct bridge_vlan_hotplug_port
*port
;
2589 for (i
= 0; i
< vlan
->n_ports
; i
++) {
2590 if (!vlan
->ports
[i
].check
) {
2596 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
2597 if (!port
->port
.check
) {
2610 int system_if_check(struct device
*dev
)
2612 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
2614 struct ifinfomsg ifi
= {
2615 .ifi_family
= AF_UNSPEC
,
2618 struct if_check_data chk
= {
2627 msg
= nlmsg_alloc_simple(RTM_GETLINK
, 0);
2631 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
2632 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
2635 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_check_valid
, &chk
);
2636 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_check_ack
, &chk
);
2637 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_check_error
, &chk
);
2639 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
2643 while (chk
.pending
> 0)
2644 nl_recvmsgs(sock_rtnl
, cb
);
2656 system_if_get_parent(struct device
*dev
)
2658 char buf
[64], *devname
;
2659 int ifindex
, iflink
;
2661 if (system_get_dev_sysfs("iflink", dev
->ifname
, buf
, sizeof(buf
)) < 0)
2664 iflink
= strtoul(buf
, NULL
, 0);
2665 ifindex
= system_if_resolve(dev
);
2666 if (!iflink
|| iflink
== ifindex
)
2669 devname
= if_indextoname(iflink
, buf
);
2673 return device_get(devname
, true);
2677 read_string_file(int dir_fd
, const char *file
, char *buf
, int len
)
2683 fd
= openat(dir_fd
, file
, O_RDONLY
);
2688 len
= read(fd
, buf
, len
- 1);
2692 } else if (len
> 0) {
2695 c
= strchr(buf
, '\n');
2708 read_uint64_file(int dir_fd
, const char *file
, uint64_t *val
)
2713 ret
= read_string_file(dir_fd
, file
, buf
, sizeof(buf
));
2715 *val
= strtoull(buf
, NULL
, 0);
2721 system_if_force_external(const char *ifname
)
2725 return stat(dev_sysfs_path(ifname
, "phy80211"), &s
) == 0;
2729 system_netdevtype_name(unsigned short dev_type
)
2733 for (i
= 0; i
< ARRAY_SIZE(netdev_types
); i
++) {
2734 if (netdev_types
[i
].id
== dev_type
)
2735 return netdev_types
[i
].name
;
2738 /* the last key is used by default */
2739 i
= ARRAY_SIZE(netdev_types
) - 1;
2741 return netdev_types
[i
].name
;
2745 system_add_devtype(struct blob_buf
*b
, const char *ifname
)
2750 if (!system_get_dev_sysfs("uevent", ifname
, buf
, sizeof(buf
))) {
2751 const char *info
= "DEVTYPE=";
2752 char *context
= NULL
;
2753 const char *line
= strtok_r(buf
, "\r\n", &context
);
2755 while (line
!= NULL
) {
2756 char *index
= strstr(line
, info
);
2758 if (index
!= NULL
) {
2759 blobmsg_add_string(b
, "devtype", index
+ strlen(info
));
2764 line
= strtok_r(NULL
, "\r\n", &context
);
2769 unsigned short number
= 0;
2770 const char *name
= NULL
;
2772 if (!system_get_dev_sysfs("type", ifname
, buf
, sizeof(buf
))) {
2773 number
= strtoul(buf
, NULL
, 0);
2774 name
= system_netdevtype_name(number
);
2775 blobmsg_add_string(b
, "devtype", name
);
2780 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
2783 ethtool_feature_count(const char *ifname
)
2786 struct ethtool_sset_info hdr
;
2790 .cmd
= ETHTOOL_GSSET_INFO
,
2791 .sset_mask
= 1 << ETH_SS_FEATURES
2795 struct ifreq ifr
= {
2796 .ifr_data
= (void *)&req
2799 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
2801 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0)
2804 if (!req
.hdr
.sset_mask
)
2811 ethtool_feature_index(const char *ifname
, const char *keyname
)
2813 struct ethtool_gstrings
*feature_names
;
2814 struct ifreq ifr
= { 0 };
2818 n_features
= ethtool_feature_count(ifname
);
2820 if (n_features
<= 0)
2823 feature_names
= calloc(1, sizeof(*feature_names
) + n_features
* ETH_GSTRING_LEN
);
2828 feature_names
->cmd
= ETHTOOL_GSTRINGS
;
2829 feature_names
->string_set
= ETH_SS_FEATURES
;
2830 feature_names
->len
= n_features
;
2832 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
2833 ifr
.ifr_data
= (void *)feature_names
;
2835 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0) {
2836 free(feature_names
);
2841 for (i
= 0; i
< feature_names
->len
; i
++)
2842 if (!strcmp((char *)&feature_names
->data
[i
* ETH_GSTRING_LEN
], keyname
))
2845 if (i
>= feature_names
->len
)
2848 free(feature_names
);
2854 ethtool_feature_value(const char *ifname
, const char *keyname
)
2856 struct ethtool_get_features_block
*feature_block
;
2857 struct ethtool_gfeatures
*feature_values
;
2858 struct ifreq ifr
= { 0 };
2859 int32_t feature_idx
;
2862 feature_idx
= ethtool_feature_index(ifname
, keyname
);
2864 if (feature_idx
< 0)
2867 feature_values
= calloc(1,
2868 sizeof(*feature_values
) +
2869 sizeof(feature_values
->features
[0]) * DIV_ROUND_UP(feature_idx
, 32));
2871 if (!feature_values
)
2874 feature_values
->cmd
= ETHTOOL_GFEATURES
;
2875 feature_values
->size
= DIV_ROUND_UP(feature_idx
, 32);
2877 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
2878 ifr
.ifr_data
= (void *)feature_values
;
2880 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0) {
2881 free(feature_values
);
2886 feature_block
= &feature_values
->features
[feature_idx
/ 32];
2887 active
= feature_block
->active
& (1U << feature_idx
% 32);
2889 free(feature_values
);
2895 system_add_link_mode_name(struct blob_buf
*b
, int i
, bool half
)
2899 /* allocate string buffer large enough for the mode name and a suffix
2900 * "-F" or "-H" indicating full duplex or half duplex.
2902 buf
= blobmsg_alloc_string_buffer(b
, NULL
, strlen(ethtool_modes
[i
].name
) + 3);
2906 strcpy(buf
, ethtool_modes
[i
].name
);
2912 blobmsg_add_string_buffer(b
);
2916 system_add_link_modes(__s8 nwords
, struct blob_buf
*b
, __u32
*mask
)
2920 for (i
= 0; i
< ARRAY_SIZE(ethtool_modes
); i
++) {
2921 if (ethtool_link_mode_test_bit(nwords
, ethtool_modes
[i
].bit_half
, mask
))
2922 system_add_link_mode_name(b
, i
, true);
2924 if (ethtool_link_mode_test_bit(nwords
, ethtool_modes
[i
].bit_full
, mask
))
2925 system_add_link_mode_name(b
, i
, false);
2930 system_add_pause_modes(__s8 nwords
, struct blob_buf
*b
, __u32
*mask
)
2932 if (ethtool_link_mode_test_bit(nwords
, ETHTOOL_LINK_MODE_Pause_BIT
, mask
))
2933 blobmsg_add_string(b
, NULL
, "pause");
2935 if (ethtool_link_mode_test_bit(nwords
, ETHTOOL_LINK_MODE_Asym_Pause_BIT
, mask
))
2936 blobmsg_add_string(b
, NULL
, "asym_pause");
2941 system_add_ethtool_pause_an(struct blob_buf
*b
, __s8 nwords
,
2942 __u32
*advertising
, __u32
*lp_advertising
)
2944 bool an_rx
= false, an_tx
= false;
2947 d
= blobmsg_open_array(b
, "negotiated");
2949 /* Work out negotiated pause frame usage per
2950 * IEEE 802.3-2005 table 28B-3.
2952 if (ethtool_link_mode_test_bit(nwords
,
2953 ETHTOOL_LINK_MODE_Pause_BIT
,
2955 ethtool_link_mode_test_bit(nwords
,
2956 ETHTOOL_LINK_MODE_Pause_BIT
,
2960 } else if (ethtool_link_mode_test_bit(nwords
,
2961 ETHTOOL_LINK_MODE_Asym_Pause_BIT
,
2963 ethtool_link_mode_test_bit(nwords
,
2964 ETHTOOL_LINK_MODE_Asym_Pause_BIT
,
2966 if (ethtool_link_mode_test_bit(nwords
,
2967 ETHTOOL_LINK_MODE_Pause_BIT
,
2970 else if (ethtool_link_mode_test_bit(nwords
,
2971 ETHTOOL_LINK_MODE_Pause_BIT
,
2976 blobmsg_add_string(b
, NULL
, "rx");
2979 blobmsg_add_string(b
, NULL
, "tx");
2981 blobmsg_close_array(b
, d
);
2985 system_get_ethtool_pause(struct device
*dev
, bool *rx_pause
, bool *tx_pause
, bool *pause_autoneg
)
2987 struct ethtool_pauseparam pp
;
2988 struct ifreq ifr
= {
2989 .ifr_data
= (caddr_t
)&pp
,
2992 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2993 memset(&pp
, 0, sizeof(pp
));
2994 pp
.cmd
= ETHTOOL_GPAUSEPARAM
;
2997 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) == -1) {
2998 *pause_autoneg
= true;
3002 *rx_pause
= pp
.rx_pause
;
3003 *tx_pause
= pp
.tx_pause
;
3004 *pause_autoneg
= pp
.autoneg
;
3008 system_if_dump_info(struct device
*dev
, struct blob_buf
*b
)
3010 __u32
*supported
, *advertising
, *lp_advertising
;
3011 bool rx_pause
, tx_pause
, pause_autoneg
;
3013 struct ethtool_link_settings req
;
3014 __u32 link_mode_data
[3 * 127];
3016 struct ifreq ifr
= {
3017 .ifr_data
= (caddr_t
)&ecmd
,
3023 system_get_ethtool_pause(dev
, &rx_pause
, &tx_pause
, &pause_autoneg
);
3025 memset(&ecmd
, 0, sizeof(ecmd
));
3026 ecmd
.req
.cmd
= ETHTOOL_GLINKSETTINGS
;
3027 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
3029 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) < 0 ||
3030 ecmd
.req
.link_mode_masks_nwords
>= 0 ||
3031 ecmd
.req
.cmd
!= ETHTOOL_GLINKSETTINGS
)
3034 ecmd
.req
.link_mode_masks_nwords
= -ecmd
.req
.link_mode_masks_nwords
;
3036 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) < 0 ||
3037 ecmd
.req
.link_mode_masks_nwords
<= 0 ||
3038 ecmd
.req
.cmd
!= ETHTOOL_GLINKSETTINGS
)
3041 nwords
= ecmd
.req
.link_mode_masks_nwords
;
3042 supported
= &ecmd
.link_mode_data
[0];
3043 advertising
= &ecmd
.link_mode_data
[nwords
];
3044 lp_advertising
= &ecmd
.link_mode_data
[2 * nwords
];
3046 c
= blobmsg_open_array(b
, "link-advertising");
3047 system_add_link_modes(nwords
, b
, advertising
);
3048 blobmsg_close_array(b
, c
);
3050 c
= blobmsg_open_array(b
, "link-partner-advertising");
3051 system_add_link_modes(nwords
, b
, lp_advertising
);
3052 blobmsg_close_array(b
, c
);
3054 c
= blobmsg_open_array(b
, "link-supported");
3055 system_add_link_modes(nwords
, b
, supported
);
3056 blobmsg_close_array(b
, c
);
3058 if (ethtool_validate_speed(ecmd
.req
.speed
) &&
3059 (ecmd
.req
.speed
!= (__u32
)SPEED_UNKNOWN
) &&
3060 (ecmd
.req
.speed
!= 0)) {
3061 s
= blobmsg_alloc_string_buffer(b
, "speed", 10);
3062 snprintf(s
, 8, "%d%c", ecmd
.req
.speed
,
3063 ecmd
.req
.duplex
== DUPLEX_HALF
? 'H' : 'F');
3064 blobmsg_add_string_buffer(b
);
3066 blobmsg_add_u8(b
, "autoneg", !!ecmd
.req
.autoneg
);
3068 c
= blobmsg_open_table(b
, "flow-control");
3069 blobmsg_add_u8(b
, "autoneg", pause_autoneg
);
3071 d
= blobmsg_open_array(b
, "supported");
3072 system_add_pause_modes(nwords
, b
, supported
);
3073 blobmsg_close_array(b
, d
);
3075 if (pause_autoneg
) {
3076 d
= blobmsg_open_array(b
, "link-advertising");
3077 system_add_pause_modes(nwords
, b
, advertising
);
3078 blobmsg_close_array(b
, d
);
3081 d
= blobmsg_open_array(b
, "link-partner-advertising");
3082 system_add_pause_modes(nwords
, b
, lp_advertising
);
3083 blobmsg_close_array(b
, d
);
3085 if (pause_autoneg
) {
3086 system_add_ethtool_pause_an(b
, nwords
, advertising
,
3089 d
= blobmsg_open_array(b
, "selected");
3091 blobmsg_add_string(b
, NULL
, "rx");
3094 blobmsg_add_string(b
, NULL
, "tx");
3096 blobmsg_close_array(b
, d
);
3099 blobmsg_close_table(b
, c
);
3101 blobmsg_add_u8(b
, "hw-tc-offload",
3102 ethtool_feature_value(dev
->ifname
, "hw-tc-offload"));
3104 system_add_devtype(b
, dev
->ifname
);
3110 system_if_dump_stats(struct device
*dev
, struct blob_buf
*b
)
3112 const char *const counters
[] = {
3113 "collisions", "rx_frame_errors", "tx_compressed",
3114 "multicast", "rx_length_errors", "tx_dropped",
3115 "rx_bytes", "rx_missed_errors", "tx_errors",
3116 "rx_compressed", "rx_over_errors", "tx_fifo_errors",
3117 "rx_crc_errors", "rx_packets", "tx_heartbeat_errors",
3118 "rx_dropped", "tx_aborted_errors", "tx_packets",
3119 "rx_errors", "tx_bytes", "tx_window_errors",
3120 "rx_fifo_errors", "tx_carrier_errors",
3126 stats_dir
= open(dev_sysfs_path(dev
->ifname
, "statistics"), O_DIRECTORY
);
3130 for (i
= 0; i
< ARRAY_SIZE(counters
); i
++)
3131 if (read_uint64_file(stats_dir
, counters
[i
], &val
))
3132 blobmsg_add_u64(b
, counters
[i
], val
);
3138 static int system_addr(struct device
*dev
, struct device_addr
*addr
, int cmd
)
3140 bool v4
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
);
3141 int alen
= v4
? 4 : 16;
3142 unsigned int flags
= 0;
3143 struct ifaddrmsg ifa
= {
3144 .ifa_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
3145 .ifa_prefixlen
= addr
->mask
,
3146 .ifa_index
= dev
->ifindex
,
3150 if (cmd
== RTM_NEWADDR
)
3151 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
3153 msg
= nlmsg_alloc_simple(cmd
, flags
);
3157 nlmsg_append(msg
, &ifa
, sizeof(ifa
), 0);
3158 nla_put(msg
, IFA_LOCAL
, alen
, &addr
->addr
);
3160 if (addr
->broadcast
)
3161 nla_put_u32(msg
, IFA_BROADCAST
, addr
->broadcast
);
3162 if (addr
->point_to_point
)
3163 nla_put_u32(msg
, IFA_ADDRESS
, addr
->point_to_point
);
3165 time_t now
= system_get_rtime();
3166 struct ifa_cacheinfo cinfo
= {0xffffffffU
, 0xffffffffU
, 0, 0};
3168 if (addr
->preferred_until
) {
3169 int64_t preferred
= addr
->preferred_until
- now
;
3172 else if (preferred
> UINT32_MAX
)
3173 preferred
= UINT32_MAX
;
3175 cinfo
.ifa_prefered
= preferred
;
3178 if (addr
->valid_until
) {
3179 int64_t valid
= addr
->valid_until
- now
;
3184 else if (valid
> UINT32_MAX
)
3187 cinfo
.ifa_valid
= valid
;
3190 nla_put(msg
, IFA_CACHEINFO
, sizeof(cinfo
), &cinfo
);
3192 if (cmd
== RTM_NEWADDR
&& (addr
->flags
& DEVADDR_OFFLINK
))
3193 nla_put_u32(msg
, IFA_FLAGS
, IFA_F_NOPREFIXROUTE
);
3196 return system_rtnl_call(msg
);
3199 int system_add_address(struct device
*dev
, struct device_addr
*addr
)
3201 return system_addr(dev
, addr
, RTM_NEWADDR
);
3204 int system_del_address(struct device
*dev
, struct device_addr
*addr
)
3206 return system_addr(dev
, addr
, RTM_DELADDR
);
3209 static int system_neigh(struct device
*dev
, struct device_neighbor
*neighbor
, int cmd
)
3211 int alen
= ((neighbor
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
3212 unsigned int flags
= 0;
3213 struct ndmsg ndm
= {
3214 .ndm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
3215 .ndm_ifindex
= dev
->ifindex
,
3216 .ndm_state
= NUD_PERMANENT
,
3217 .ndm_flags
= (neighbor
->proxy
? NTF_PROXY
: 0) | (neighbor
->router
? NTF_ROUTER
: 0),
3221 if (cmd
== RTM_NEWNEIGH
)
3222 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
3224 msg
= nlmsg_alloc_simple(cmd
, flags
);
3229 nlmsg_append(msg
, &ndm
, sizeof(ndm
), 0);
3231 nla_put(msg
, NDA_DST
, alen
, &neighbor
->addr
);
3232 if (neighbor
->flags
& DEVNEIGH_MAC
)
3233 nla_put(msg
, NDA_LLADDR
, sizeof(neighbor
->macaddr
), &neighbor
->macaddr
);
3236 return system_rtnl_call(msg
);
3239 int system_add_neighbor(struct device
*dev
, struct device_neighbor
*neighbor
)
3241 return system_neigh(dev
, neighbor
, RTM_NEWNEIGH
);
3244 int system_del_neighbor(struct device
*dev
, struct device_neighbor
*neighbor
)
3246 return system_neigh(dev
, neighbor
, RTM_DELNEIGH
);
3249 static int system_rt(struct device
*dev
, struct device_route
*route
, int cmd
)
3251 int alen
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
3253 unsigned int flags
= 0;
3256 have_gw
= !!route
->nexthop
.in
.s_addr
;
3258 have_gw
= route
->nexthop
.in6
.s6_addr32
[0] ||
3259 route
->nexthop
.in6
.s6_addr32
[1] ||
3260 route
->nexthop
.in6
.s6_addr32
[2] ||
3261 route
->nexthop
.in6
.s6_addr32
[3];
3263 unsigned int table
= (route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))
3264 ? route
->table
: RT_TABLE_MAIN
;
3266 struct rtmsg rtm
= {
3267 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
3268 .rtm_dst_len
= route
->mask
,
3269 .rtm_src_len
= route
->sourcemask
,
3270 .rtm_table
= (table
< 256) ? table
: RT_TABLE_UNSPEC
,
3271 .rtm_protocol
= (route
->flags
& DEVROUTE_PROTO
) ? route
->proto
: RTPROT_STATIC
,
3272 .rtm_scope
= RT_SCOPE_NOWHERE
,
3273 .rtm_type
= (cmd
== RTM_DELROUTE
) ? 0: RTN_UNICAST
,
3274 .rtm_flags
= (route
->flags
& DEVROUTE_ONLINK
) ? RTNH_F_ONLINK
: 0,
3278 if (cmd
== RTM_NEWROUTE
) {
3279 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
3281 if (!dev
) { /* Add null-route */
3282 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
3283 rtm
.rtm_type
= RTN_UNREACHABLE
;
3286 rtm
.rtm_scope
= (have_gw
) ? RT_SCOPE_UNIVERSE
: RT_SCOPE_LINK
;
3289 if (route
->flags
& DEVROUTE_TYPE
) {
3290 rtm
.rtm_type
= route
->type
;
3291 if (!(route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))) {
3292 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_BROADCAST
||
3293 rtm
.rtm_type
== RTN_NAT
|| rtm
.rtm_type
== RTN_ANYCAST
)
3294 rtm
.rtm_table
= RT_TABLE_LOCAL
;
3297 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_NAT
) {
3298 rtm
.rtm_scope
= RT_SCOPE_HOST
;
3299 } else if (rtm
.rtm_type
== RTN_BROADCAST
|| rtm
.rtm_type
== RTN_MULTICAST
||
3300 rtm
.rtm_type
== RTN_ANYCAST
) {
3301 rtm
.rtm_scope
= RT_SCOPE_LINK
;
3302 } else if (rtm
.rtm_type
== RTN_BLACKHOLE
|| rtm
.rtm_type
== RTN_UNREACHABLE
||
3303 rtm
.rtm_type
== RTN_PROHIBIT
|| rtm
.rtm_type
== RTN_FAILED_POLICY
||
3304 rtm
.rtm_type
== RTN_THROW
) {
3305 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
3310 if (route
->flags
& DEVROUTE_NODEV
)
3313 msg
= nlmsg_alloc_simple(cmd
, flags
);
3317 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
3320 nla_put(msg
, RTA_DST
, alen
, &route
->addr
);
3322 if (route
->sourcemask
) {
3323 if (rtm
.rtm_family
== AF_INET
)
3324 nla_put(msg
, RTA_PREFSRC
, alen
, &route
->source
);
3326 nla_put(msg
, RTA_SRC
, alen
, &route
->source
);
3329 if (route
->metric
> 0)
3330 nla_put_u32(msg
, RTA_PRIORITY
, route
->metric
);
3333 nla_put(msg
, RTA_GATEWAY
, alen
, &route
->nexthop
);
3336 nla_put_u32(msg
, RTA_OIF
, dev
->ifindex
);
3339 nla_put_u32(msg
, RTA_TABLE
, table
);
3341 if (route
->flags
& DEVROUTE_MTU
) {
3342 struct nlattr
*metrics
;
3344 if (!(metrics
= nla_nest_start(msg
, RTA_METRICS
)))
3345 goto nla_put_failure
;
3347 nla_put_u32(msg
, RTAX_MTU
, route
->mtu
);
3349 nla_nest_end(msg
, metrics
);
3352 return system_rtnl_call(msg
);
3359 int system_add_route(struct device
*dev
, struct device_route
*route
)
3361 return system_rt(dev
, route
, RTM_NEWROUTE
);
3364 int system_del_route(struct device
*dev
, struct device_route
*route
)
3366 return system_rt(dev
, route
, RTM_DELROUTE
);
3369 int system_flush_routes(void)
3371 const char *names
[] = { "ipv4", "ipv6" };
3375 for (i
= 0; i
< ARRAY_SIZE(names
); i
++) {
3376 snprintf(dev_buf
, sizeof(dev_buf
), "%s/sys/net/%s/route/flush", proc_path
, names
[i
]);
3377 fd
= open(dev_buf
, O_WRONLY
);
3381 if (write(fd
, "-1", 2)) {}
3387 bool system_resolve_rt_type(const char *type
, unsigned int *id
)
3389 return system_rtn_aton(type
, id
);
3392 bool system_resolve_rt_proto(const char *type
, unsigned int *id
)
3396 unsigned int n
, proto
= 256;
3397 n
= strtoul(type
, &e
, 0);
3398 if (!*e
&& e
!= type
)
3400 else if (!strcmp(type
, "unspec"))
3401 proto
= RTPROT_UNSPEC
;
3402 else if (!strcmp(type
, "kernel"))
3403 proto
= RTPROT_KERNEL
;
3404 else if (!strcmp(type
, "boot"))
3405 proto
= RTPROT_BOOT
;
3406 else if (!strcmp(type
, "static"))
3407 proto
= RTPROT_STATIC
;
3408 else if ((f
= fopen("/etc/iproute2/rt_protos", "r")) != NULL
) {
3409 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
) {
3410 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
3413 n
= strtoul(e
, NULL
, 10);
3414 e
= strtok(NULL
, " \t\n");
3416 if (e
&& !strcmp(e
, type
)) {
3431 bool system_resolve_rt_table(const char *name
, unsigned int *id
)
3435 unsigned int n
, table
= RT_TABLE_UNSPEC
;
3437 /* first try to parse table as number */
3438 if ((n
= strtoul(name
, &e
, 0)) > 0 && !*e
)
3441 /* handle well known aliases */
3442 else if (!strcmp(name
, "default"))
3443 table
= RT_TABLE_DEFAULT
;
3444 else if (!strcmp(name
, "main"))
3445 table
= RT_TABLE_MAIN
;
3446 else if (!strcmp(name
, "local"))
3447 table
= RT_TABLE_LOCAL
;
3449 /* try to look up name in /etc/iproute2/rt_tables */
3450 else if ((f
= fopen("/etc/iproute2/rt_tables", "r")) != NULL
)
3452 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
)
3454 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
3457 n
= strtoul(e
, NULL
, 10);
3458 e
= strtok(NULL
, " \t\n");
3460 if (e
&& !strcmp(e
, name
))
3470 if (table
== RT_TABLE_UNSPEC
)
3477 bool system_is_default_rt_table(unsigned int id
)
3479 return (id
== RT_TABLE_MAIN
);
3482 bool system_resolve_rpfilter(const char *filter
, unsigned int *id
)
3487 if (!strcmp(filter
, "strict"))
3489 else if (!strcmp(filter
, "loose"))
3492 n
= strtoul(filter
, &e
, 0);
3493 if (*e
|| e
== filter
|| n
> 2)
3501 static int system_iprule(struct iprule
*rule
, int cmd
)
3503 int alen
= ((rule
->flags
& IPRULE_FAMILY
) == IPRULE_INET4
) ? 4 : 16;
3506 struct rtmsg rtm
= {
3507 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
3508 .rtm_protocol
= RTPROT_STATIC
,
3509 .rtm_scope
= RT_SCOPE_UNIVERSE
,
3510 .rtm_table
= RT_TABLE_UNSPEC
,
3511 .rtm_type
= RTN_UNSPEC
,
3515 if (cmd
== RTM_NEWRULE
)
3516 rtm
.rtm_type
= RTN_UNICAST
;
3519 rtm
.rtm_flags
|= FIB_RULE_INVERT
;
3521 if (rule
->flags
& IPRULE_SRC
)
3522 rtm
.rtm_src_len
= rule
->src_mask
;
3524 if (rule
->flags
& IPRULE_DEST
)
3525 rtm
.rtm_dst_len
= rule
->dest_mask
;
3527 if (rule
->flags
& IPRULE_TOS
)
3528 rtm
.rtm_tos
= rule
->tos
;
3530 if (rule
->flags
& IPRULE_LOOKUP
) {
3531 if (rule
->lookup
< 256)
3532 rtm
.rtm_table
= rule
->lookup
;
3535 if (rule
->flags
& IPRULE_ACTION
)
3536 rtm
.rtm_type
= rule
->action
;
3537 else if (rule
->flags
& IPRULE_GOTO
)
3538 rtm
.rtm_type
= FR_ACT_GOTO
;
3539 else if (!(rule
->flags
& (IPRULE_LOOKUP
| IPRULE_ACTION
| IPRULE_GOTO
)))
3540 rtm
.rtm_type
= FR_ACT_NOP
;
3542 msg
= nlmsg_alloc_simple(cmd
, NLM_F_REQUEST
);
3547 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
3549 if (rule
->flags
& IPRULE_IN
)
3550 nla_put(msg
, FRA_IFNAME
, strlen(rule
->in_dev
) + 1, rule
->in_dev
);
3552 if (rule
->flags
& IPRULE_OUT
)
3553 nla_put(msg
, FRA_OIFNAME
, strlen(rule
->out_dev
) + 1, rule
->out_dev
);
3555 if (rule
->flags
& IPRULE_SRC
)
3556 nla_put(msg
, FRA_SRC
, alen
, &rule
->src_addr
);
3558 if (rule
->flags
& IPRULE_DEST
)
3559 nla_put(msg
, FRA_DST
, alen
, &rule
->dest_addr
);
3561 if (rule
->flags
& IPRULE_PRIORITY
)
3562 nla_put_u32(msg
, FRA_PRIORITY
, rule
->priority
);
3563 else if (cmd
== RTM_NEWRULE
)
3564 nla_put_u32(msg
, FRA_PRIORITY
, rule
->order
);
3566 if (rule
->flags
& IPRULE_FWMARK
)
3567 nla_put_u32(msg
, FRA_FWMARK
, rule
->fwmark
);
3569 if (rule
->flags
& IPRULE_FWMASK
)
3570 nla_put_u32(msg
, FRA_FWMASK
, rule
->fwmask
);
3572 if (rule
->flags
& IPRULE_LOOKUP
) {
3573 if (rule
->lookup
>= 256)
3574 nla_put_u32(msg
, FRA_TABLE
, rule
->lookup
);
3577 if (rule
->flags
& IPRULE_SUP_PREFIXLEN
)
3578 nla_put_u32(msg
, FRA_SUPPRESS_PREFIXLEN
, rule
->sup_prefixlen
);
3580 if (rule
->flags
& IPRULE_UIDRANGE
) {
3581 struct fib_rule_uid_range uidrange
= {
3582 .start
= rule
->uidrange_start
,
3583 .end
= rule
->uidrange_end
3586 nla_put(msg
, FRA_UID_RANGE
, sizeof(uidrange
), &uidrange
);
3589 if (rule
->flags
& IPRULE_GOTO
)
3590 nla_put_u32(msg
, FRA_GOTO
, rule
->gotoid
);
3592 return system_rtnl_call(msg
);
3595 int system_add_iprule(struct iprule
*rule
)
3597 return system_iprule(rule
, RTM_NEWRULE
);
3600 int system_del_iprule(struct iprule
*rule
)
3602 return system_iprule(rule
, RTM_DELRULE
);
3605 int system_flush_iprules(void)
3610 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET
);
3611 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET6
);
3613 memset(&rule
, 0, sizeof(rule
));
3616 rule
.flags
= IPRULE_INET4
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
3619 rule
.lookup
= RT_TABLE_LOCAL
;
3620 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3622 rule
.priority
= 32766;
3623 rule
.lookup
= RT_TABLE_MAIN
;
3624 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3626 rule
.priority
= 32767;
3627 rule
.lookup
= RT_TABLE_DEFAULT
;
3628 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3631 rule
.flags
= IPRULE_INET6
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
3634 rule
.lookup
= RT_TABLE_LOCAL
;
3635 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3637 rule
.priority
= 32766;
3638 rule
.lookup
= RT_TABLE_MAIN
;
3639 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3644 bool system_resolve_iprule_action(const char *action
, unsigned int *id
)
3646 return system_rtn_aton(action
, id
);
3649 time_t system_get_rtime(void)
3654 if (clock_gettime(CLOCK_MONOTONIC
, &ts
) == 0)
3657 if (gettimeofday(&tv
, NULL
) == 0)
3664 #define IP_DF 0x4000
3667 static int tunnel_ioctl(const char *name
, int cmd
, void *p
)
3671 memset(&ifr
, 0, sizeof(ifr
));
3672 strncpy(ifr
.ifr_name
, name
, sizeof(ifr
.ifr_name
) - 1);
3673 ifr
.ifr_ifru
.ifru_data
= p
;
3674 return ioctl(sock_ioctl
, cmd
, &ifr
);
3677 #ifdef IFLA_IPTUN_MAX
3678 static int system_add_ip6_tunnel(const char *name
, const unsigned int link
,
3679 struct blob_attr
**tb
)
3681 struct nl_msg
*nlm
= nlmsg_alloc_simple(RTM_NEWLINK
,
3682 NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3683 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
};
3684 struct blob_attr
*cur
;
3685 int ret
= 0, ttl
= 0;
3690 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3691 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3694 nla_put_u32(nlm
, IFLA_LINK
, link
);
3696 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3702 nla_put_string(nlm
, IFLA_INFO_KIND
, "ip6tnl");
3703 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3710 nla_put_u32(nlm
, IFLA_IPTUN_LINK
, link
);
3712 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3713 ttl
= blobmsg_get_u32(cur
);
3715 nla_put_u8(nlm
, IFLA_IPTUN_PROTO
, IPPROTO_IPIP
);
3716 nla_put_u8(nlm
, IFLA_IPTUN_TTL
, (ttl
) ? ttl
: 64);
3718 struct in6_addr in6buf
;
3719 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3720 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3724 nla_put(nlm
, IFLA_IPTUN_LOCAL
, sizeof(in6buf
), &in6buf
);
3727 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3728 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3732 nla_put(nlm
, IFLA_IPTUN_REMOTE
, sizeof(in6buf
), &in6buf
);
3735 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3736 struct blob_attr
*tb_data
[__IPIP6_DATA_ATTR_MAX
];
3737 uint32_t tun_flags
= IP6_TNL_F_IGN_ENCAP_LIMIT
;
3739 blobmsg_parse(ipip6_data_attr_list
.params
, __IPIP6_DATA_ATTR_MAX
, tb_data
,
3740 blobmsg_data(cur
), blobmsg_len(cur
));
3742 if ((cur
= tb_data
[IPIP6_DATA_ENCAPLIMIT
])) {
3743 char *str
= blobmsg_get_string(cur
);
3745 if (strcmp(str
, "ignore")) {
3747 unsigned encap_limit
= strtoul(str
, &e
, 0);
3749 if (e
== str
|| *e
|| encap_limit
> 255) {
3754 nla_put_u8(nlm
, IFLA_IPTUN_ENCAP_LIMIT
, encap_limit
);
3755 tun_flags
&= ~IP6_TNL_F_IGN_ENCAP_LIMIT
;
3759 #ifdef IFLA_IPTUN_FMR_MAX
3760 if ((cur
= tb_data
[IPIP6_DATA_FMRS
])) {
3761 struct blob_attr
*rcur
;
3762 unsigned rrem
, fmrcnt
= 0;
3763 struct nlattr
*fmrs
= nla_nest_start(nlm
, IFLA_IPTUN_FMRS
);
3770 blobmsg_for_each_attr(rcur
, cur
, rrem
) {
3771 struct blob_attr
*tb_fmr
[__FMR_DATA_ATTR_MAX
], *tb_cur
;
3772 struct in6_addr ip6prefix
;
3773 struct in_addr ip4prefix
;
3774 unsigned ip4len
, ip6len
, ealen
, offset
;
3776 blobmsg_parse(fmr_data_attr_list
.params
, __FMR_DATA_ATTR_MAX
, tb_fmr
,
3777 blobmsg_data(rcur
), blobmsg_len(rcur
));
3779 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX6
]) ||
3780 !parse_ip_and_netmask(AF_INET6
,
3781 blobmsg_data(tb_cur
), &ip6prefix
,
3787 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX4
]) ||
3788 !parse_ip_and_netmask(AF_INET
,
3789 blobmsg_data(tb_cur
), &ip4prefix
,
3795 if (!(tb_cur
= tb_fmr
[FMR_DATA_EALEN
])) {
3799 ealen
= blobmsg_get_u32(tb_cur
);
3801 if (!(tb_cur
= tb_fmr
[FMR_DATA_OFFSET
])) {
3805 offset
= blobmsg_get_u32(tb_cur
);
3807 struct nlattr
*rule
= nla_nest_start(nlm
, ++fmrcnt
);
3813 nla_put(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX
, sizeof(ip6prefix
), &ip6prefix
);
3814 nla_put(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX
, sizeof(ip4prefix
), &ip4prefix
);
3815 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX_LEN
, ip6len
);
3816 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX_LEN
, ip4len
);
3817 nla_put_u8(nlm
, IFLA_IPTUN_FMR_EA_LEN
, ealen
);
3818 nla_put_u8(nlm
, IFLA_IPTUN_FMR_OFFSET
, offset
);
3820 nla_nest_end(nlm
, rule
);
3823 nla_nest_end(nlm
, fmrs
);
3827 nla_put_u32(nlm
, IFLA_IPTUN_FLAGS
, tun_flags
);
3830 nla_nest_end(nlm
, infodata
);
3831 nla_nest_end(nlm
, linkinfo
);
3833 return system_rtnl_call(nlm
);
3841 #ifdef IFLA_IPTUN_MAX
3842 #define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
3843 static int system_add_gre_tunnel(const char *name
, const char *kind
,
3844 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3847 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3848 struct blob_attr
*cur
;
3849 uint32_t ikey
= 0, okey
= 0, flowinfo
= 0, flags6
= IP6_TNL_F_IGN_ENCAP_LIMIT
;
3850 uint16_t iflags
= 0, oflags
= 0;
3852 int ret
= 0, ttl
= 0;
3853 unsigned encap_limit
= 0;
3855 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3859 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3860 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3862 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3868 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
3869 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3876 nla_put_u32(nlm
, IFLA_GRE_LINK
, link
);
3878 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3879 ttl
= blobmsg_get_u32(cur
);
3881 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3882 char *str
= blobmsg_get_string(cur
);
3883 if (strcmp(str
, "inherit")) {
3886 if (!system_tos_aton(str
, &uval
)) {
3892 flowinfo
|= htonl(uval
<< 20) & IP6_FLOWINFO_TCLASS
;
3897 flags6
|= IP6_TNL_F_USE_ORIG_TCLASS
;
3903 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3904 struct blob_attr
*tb_data
[__GRE_DATA_ATTR_MAX
];
3906 blobmsg_parse(gre_data_attr_list
.params
, __GRE_DATA_ATTR_MAX
, tb_data
,
3907 blobmsg_data(cur
), blobmsg_len(cur
));
3909 if ((cur
= tb_data
[GRE_DATA_IKEY
])) {
3910 if ((ikey
= blobmsg_get_u32(cur
)))
3914 if ((cur
= tb_data
[GRE_DATA_OKEY
])) {
3915 if ((okey
= blobmsg_get_u32(cur
)))
3919 if ((cur
= tb_data
[GRE_DATA_ICSUM
])) {
3920 if (blobmsg_get_bool(cur
))
3924 if ((cur
= tb_data
[GRE_DATA_OCSUM
])) {
3925 if (blobmsg_get_bool(cur
))
3929 if ((cur
= tb_data
[GRE_DATA_ISEQNO
])) {
3930 if (blobmsg_get_bool(cur
))
3934 if ((cur
= tb_data
[GRE_DATA_OSEQNO
])) {
3935 if (blobmsg_get_bool(cur
))
3939 if ((cur
= tb_data
[GRE_DATA_ENCAPLIMIT
])) {
3940 char *str
= blobmsg_get_string(cur
);
3942 if (strcmp(str
, "ignore")) {
3945 encap_limit
= strtoul(str
, &e
, 0);
3947 if (e
== str
|| *e
|| encap_limit
> 255) {
3952 flags6
&= ~IP6_TNL_F_IGN_ENCAP_LIMIT
;
3958 struct in6_addr in6buf
;
3959 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3960 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3964 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(in6buf
), &in6buf
);
3967 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3968 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3972 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(in6buf
), &in6buf
);
3975 if (!(flags6
& IP6_TNL_F_IGN_ENCAP_LIMIT
))
3976 nla_put_u8(nlm
, IFLA_GRE_ENCAP_LIMIT
, encap_limit
);
3979 nla_put_u32(nlm
, IFLA_GRE_FLOWINFO
, flowinfo
);
3982 nla_put_u32(nlm
, IFLA_GRE_FLAGS
, flags6
);
3987 struct in_addr inbuf
;
3990 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3991 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3995 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(inbuf
), &inbuf
);
3998 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3999 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
4003 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(inbuf
), &inbuf
);
4005 if (IN_MULTICAST(ntohl(inbuf
.s_addr
))) {
4007 okey
= inbuf
.s_addr
;
4012 ikey
= inbuf
.s_addr
;
4018 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
4019 set_df
= blobmsg_get_bool(cur
);
4022 /* ttl != 0 and nopmtudisc are incompatible */
4030 nla_put_u8(nlm
, IFLA_GRE_PMTUDISC
, set_df
? 1 : 0);
4032 nla_put_u8(nlm
, IFLA_GRE_TOS
, tos
);
4036 nla_put_u8(nlm
, IFLA_GRE_TTL
, ttl
);
4039 nla_put_u16(nlm
, IFLA_GRE_OFLAGS
, oflags
);
4042 nla_put_u16(nlm
, IFLA_GRE_IFLAGS
, iflags
);
4045 nla_put_u32(nlm
, IFLA_GRE_OKEY
, htonl(okey
));
4048 nla_put_u32(nlm
, IFLA_GRE_IKEY
, htonl(ikey
));
4050 nla_nest_end(nlm
, infodata
);
4051 nla_nest_end(nlm
, linkinfo
);
4053 return system_rtnl_call(nlm
);
4062 static int system_add_vti_tunnel(const char *name
, const char *kind
,
4063 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
4066 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
4067 struct blob_attr
*cur
;
4070 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
4074 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
4075 nla_put_string(nlm
, IFLA_IFNAME
, name
);
4077 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
4083 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
4084 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
4091 nla_put_u32(nlm
, IFLA_VTI_LINK
, link
);
4094 struct in6_addr in6buf
;
4095 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
4096 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
4100 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(in6buf
), &in6buf
);
4103 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
4104 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
4108 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(in6buf
), &in6buf
);
4112 struct in_addr inbuf
;
4114 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
4115 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
4119 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(inbuf
), &inbuf
);
4122 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
4123 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
4127 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(inbuf
), &inbuf
);
4132 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
4133 struct blob_attr
*tb_data
[__VTI_DATA_ATTR_MAX
];
4134 uint32_t ikey
= 0, okey
= 0;
4136 blobmsg_parse(vti_data_attr_list
.params
, __VTI_DATA_ATTR_MAX
, tb_data
,
4137 blobmsg_data(cur
), blobmsg_len(cur
));
4139 if ((cur
= tb_data
[VTI_DATA_IKEY
])) {
4140 if ((ikey
= blobmsg_get_u32(cur
)))
4141 nla_put_u32(nlm
, IFLA_VTI_IKEY
, htonl(ikey
));
4144 if ((cur
= tb_data
[VTI_DATA_OKEY
])) {
4145 if ((okey
= blobmsg_get_u32(cur
)))
4146 nla_put_u32(nlm
, IFLA_VTI_OKEY
, htonl(okey
));
4150 nla_nest_end(nlm
, infodata
);
4151 nla_nest_end(nlm
, linkinfo
);
4153 return system_rtnl_call(nlm
);
4161 #ifdef IFLA_XFRM_MAX
4162 static int system_add_xfrm_tunnel(const char *name
, const char *kind
,
4163 const unsigned int link
, struct blob_attr
**tb
)
4166 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
4167 struct blob_attr
*cur
;
4170 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
4174 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
4175 nla_put_string(nlm
, IFLA_IFNAME
, name
);
4177 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
4183 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
4184 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
4191 nla_put_u32(nlm
, IFLA_XFRM_LINK
, link
);
4193 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
4194 struct blob_attr
*tb_data
[__XFRM_DATA_ATTR_MAX
];
4197 blobmsg_parse(xfrm_data_attr_list
.params
, __XFRM_DATA_ATTR_MAX
, tb_data
,
4198 blobmsg_data(cur
), blobmsg_len(cur
));
4200 if ((cur
= tb_data
[XFRM_DATA_IF_ID
])) {
4201 if ((if_id
= blobmsg_get_u32(cur
)))
4202 nla_put_u32(nlm
, IFLA_XFRM_IF_ID
, if_id
);
4207 nla_nest_end(nlm
, infodata
);
4208 nla_nest_end(nlm
, linkinfo
);
4210 return system_rtnl_call(nlm
);
4218 #ifdef IFLA_VXLAN_MAX
4219 static void system_vxlan_map_bool_attr(struct nl_msg
*msg
, struct blob_attr
**tb_data
, int attrtype
, int vxlandatatype
, bool invert
) {
4220 struct blob_attr
*cur
;
4221 if ((cur
= tb_data
[vxlandatatype
])) {
4222 bool val
= blobmsg_get_bool(cur
);
4226 if ((attrtype
== IFLA_VXLAN_GBP
) && val
)
4227 nla_put_flag(msg
, attrtype
);
4229 nla_put_u8(msg
, attrtype
, val
);
4234 static int system_add_vxlan(const char *name
, const unsigned int link
, struct blob_attr
**tb
, bool v6
)
4236 struct blob_attr
*tb_data
[__VXLAN_DATA_ATTR_MAX
];
4238 struct nlattr
*linkinfo
, *data
;
4239 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
4240 struct blob_attr
*cur
;
4243 if ((cur
= tb
[TUNNEL_ATTR_DATA
]))
4244 blobmsg_parse(vxlan_data_attr_list
.params
, __VXLAN_DATA_ATTR_MAX
, tb_data
,
4245 blobmsg_data(cur
), blobmsg_len(cur
));
4249 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
4254 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
4256 nla_put_string(msg
, IFLA_IFNAME
, name
);
4258 if ((cur
= tb_data
[VXLAN_DATA_ATTR_MACADDR
])) {
4259 struct ether_addr
*ea
= ether_aton(blobmsg_get_string(cur
));
4265 nla_put(msg
, IFLA_ADDRESS
, ETH_ALEN
, ea
);
4268 if ((cur
= tb
[TUNNEL_ATTR_MTU
])) {
4269 uint32_t mtu
= blobmsg_get_u32(cur
);
4270 nla_put_u32(msg
, IFLA_MTU
, mtu
);
4273 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
))) {
4278 nla_put_string(msg
, IFLA_INFO_KIND
, "vxlan");
4280 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
))) {
4286 nla_put_u32(msg
, IFLA_VXLAN_LINK
, link
);
4288 if ((cur
= tb_data
[VXLAN_DATA_ATTR_ID
])) {
4289 uint32_t id
= blobmsg_get_u32(cur
);
4290 if (id
>= (1u << 24) - 1) {
4295 nla_put_u32(msg
, IFLA_VXLAN_ID
, id
);
4299 struct in6_addr in6buf
;
4300 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
4301 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
4305 nla_put(msg
, IFLA_VXLAN_LOCAL6
, sizeof(in6buf
), &in6buf
);
4308 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
4309 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
4313 nla_put(msg
, IFLA_VXLAN_GROUP6
, sizeof(in6buf
), &in6buf
);
4316 struct in_addr inbuf
;
4318 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
4319 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
4323 nla_put(msg
, IFLA_VXLAN_LOCAL
, sizeof(inbuf
), &inbuf
);
4326 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
4327 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
4331 nla_put(msg
, IFLA_VXLAN_GROUP
, sizeof(inbuf
), &inbuf
);
4335 uint32_t port
= 4789;
4336 if ((cur
= tb_data
[VXLAN_DATA_ATTR_PORT
])) {
4337 port
= blobmsg_get_u32(cur
);
4338 if (port
< 1 || port
> 65535) {
4343 nla_put_u16(msg
, IFLA_VXLAN_PORT
, htons(port
));
4345 if ((cur
= tb_data
[VXLAN_DATA_ATTR_SRCPORTMIN
])) {
4346 struct ifla_vxlan_port_range srcports
= {0,0};
4348 uint32_t low
= blobmsg_get_u32(cur
);
4349 if (low
< 1 || low
> 65535 - 1) {
4354 srcports
.low
= htons((uint16_t) low
);
4355 srcports
.high
= htons((uint16_t) (low
+1));
4357 if ((cur
= tb_data
[VXLAN_DATA_ATTR_SRCPORTMAX
])) {
4358 uint32_t high
= blobmsg_get_u32(cur
);
4359 if (high
< 1 || high
> 65535) {
4365 srcports
.high
= htons((uint16_t) high
);
4368 nla_put(msg
, IFLA_VXLAN_PORT_RANGE
, sizeof(srcports
), &srcports
);
4371 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_CSUM
, VXLAN_DATA_ATTR_TXCSUM
, false);
4372 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_ZERO_CSUM6_RX
, VXLAN_DATA_ATTR_RXCSUM
, true);
4373 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_ZERO_CSUM6_TX
, VXLAN_DATA_ATTR_TXCSUM
, true);
4374 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_LEARNING
, VXLAN_DATA_ATTR_LEARNING
, false);
4375 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_RSC
, VXLAN_DATA_ATTR_RSC
, false);
4376 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_PROXY
, VXLAN_DATA_ATTR_PROXY
, false);
4377 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_L2MISS
, VXLAN_DATA_ATTR_L2MISS
, false);
4378 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_L3MISS
, VXLAN_DATA_ATTR_L3MISS
, false);
4379 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_GBP
, VXLAN_DATA_ATTR_GBP
, false);
4381 if ((cur
= tb_data
[VXLAN_DATA_ATTR_AGEING
])) {
4382 uint32_t ageing
= blobmsg_get_u32(cur
);
4383 nla_put_u32(msg
, IFLA_VXLAN_AGEING
, ageing
);
4386 if ((cur
= tb_data
[VXLAN_DATA_ATTR_LIMIT
])) {
4387 uint32_t maxaddress
= blobmsg_get_u32(cur
);
4388 nla_put_u32(msg
, IFLA_VXLAN_LIMIT
, maxaddress
);
4391 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
4392 char *str
= blobmsg_get_string(cur
);
4395 if (strcmp(str
, "inherit")) {
4396 if (!system_tos_aton(str
, &tos
)) {
4402 nla_put_u8(msg
, IFLA_VXLAN_TOS
, tos
);
4405 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
4406 uint32_t ttl
= blobmsg_get_u32(cur
);
4407 if (ttl
< 1 || ttl
> 255) {
4412 nla_put_u8(msg
, IFLA_VXLAN_TTL
, ttl
);
4415 nla_nest_end(msg
, data
);
4416 nla_nest_end(msg
, linkinfo
);
4418 ret
= system_rtnl_call(msg
);
4420 D(SYSTEM
, "Error adding vxlan '%s': %d", name
, ret
);
4430 static int system_add_sit_tunnel(const char *name
, const unsigned int link
, struct blob_attr
**tb
)
4432 struct blob_attr
*cur
;
4435 if (system_add_proto_tunnel(name
, IPPROTO_IPV6
, link
, tb
) < 0)
4439 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
4440 struct blob_attr
*tb_data
[__SIXRD_DATA_ATTR_MAX
];
4442 struct ip_tunnel_6rd p6
;
4444 blobmsg_parse(sixrd_data_attr_list
.params
, __SIXRD_DATA_ATTR_MAX
, tb_data
,
4445 blobmsg_data(cur
), blobmsg_len(cur
));
4447 memset(&p6
, 0, sizeof(p6
));
4449 if ((cur
= tb_data
[SIXRD_DATA_PREFIX
])) {
4450 if (!parse_ip_and_netmask(AF_INET6
, blobmsg_data(cur
),
4451 &p6
.prefix
, &mask
) || mask
> 128) {
4456 p6
.prefixlen
= mask
;
4459 if ((cur
= tb_data
[SIXRD_DATA_RELAY_PREFIX
])) {
4460 if (!parse_ip_and_netmask(AF_INET
, blobmsg_data(cur
),
4461 &p6
.relay_prefix
, &mask
) || mask
> 32) {
4466 p6
.relay_prefixlen
= mask
;
4469 if (tunnel_ioctl(name
, SIOCADD6RD
, &p6
) < 0) {
4479 system_link_del(name
);
4483 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
, const unsigned int link
, struct blob_attr
**tb
)
4485 struct blob_attr
*cur
;
4487 struct ip_tunnel_parm p
= {
4496 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
]) &&
4497 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.saddr
) < 1)
4500 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
]) &&
4501 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.daddr
) < 1)
4504 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
4505 set_df
= blobmsg_get_bool(cur
);
4507 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
4508 p
.iph
.ttl
= blobmsg_get_u32(cur
);
4510 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
4511 char *str
= blobmsg_get_string(cur
);
4512 if (strcmp(str
, "inherit")) {
4515 if (!system_tos_aton(str
, &uval
))
4523 p
.iph
.frag_off
= set_df
? htons(IP_DF
) : 0;
4524 /* ttl !=0 and nopmtudisc are incompatible */
4525 if (p
.iph
.ttl
&& p
.iph
.frag_off
== 0)
4528 strncpy(p
.name
, name
, sizeof(p
.name
) - 1);
4530 switch (p
.iph
.protocol
) {
4532 return tunnel_ioctl("tunl0", SIOCADDTUNNEL
, &p
);
4534 return tunnel_ioctl("sit0", SIOCADDTUNNEL
, &p
);
4541 int system_del_ip_tunnel(const struct device
*dev
)
4543 return system_link_del(dev
->ifname
);
4546 int system_update_ipv6_mtu(struct device
*dev
, int mtu
)
4552 fd
= open(dev_sysctl_path("ipv6/conf", dev
->ifname
, "mtu"), O_RDWR
);
4557 ssize_t len
= read(fd
, buf
, sizeof(buf
) - 1);
4564 if (write(fd
, buf
, snprintf(buf
, sizeof(buf
), "%i", mtu
)) > 0)
4573 int system_add_ip_tunnel(const struct device
*dev
, struct blob_attr
*attr
)
4575 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
4576 struct blob_attr
*cur
;
4579 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
4580 blob_data(attr
), blob_len(attr
));
4582 system_link_del(dev
->ifname
);
4584 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
4586 str
= blobmsg_data(cur
);
4588 unsigned int ttl
= 0;
4589 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
4590 ttl
= blobmsg_get_u32(cur
);
4595 unsigned int link
= 0;
4596 if ((cur
= tb
[TUNNEL_ATTR_LINK
])) {
4597 struct interface
*iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
4601 if (iface
->l3_dev
.dev
)
4602 link
= iface
->l3_dev
.dev
->ifindex
;
4605 if (!strcmp(str
, "sit"))
4606 return system_add_sit_tunnel(dev
->ifname
, link
, tb
);
4607 #ifdef IFLA_IPTUN_MAX
4608 else if (!strcmp(str
, "ipip6")) {
4609 return system_add_ip6_tunnel(dev
->ifname
, link
, tb
);
4610 } else if (!strcmp(str
, "greip")) {
4611 return system_add_gre_tunnel(dev
->ifname
, "gre", link
, tb
, false);
4612 } else if (!strcmp(str
, "gretapip")) {
4613 return system_add_gre_tunnel(dev
->ifname
, "gretap", link
, tb
, false);
4614 } else if (!strcmp(str
, "greip6")) {
4615 return system_add_gre_tunnel(dev
->ifname
, "ip6gre", link
, tb
, true);
4616 } else if (!strcmp(str
, "gretapip6")) {
4617 return system_add_gre_tunnel(dev
->ifname
, "ip6gretap", link
, tb
, true);
4619 } else if (!strcmp(str
, "vtiip")) {
4620 return system_add_vti_tunnel(dev
->ifname
, "vti", link
, tb
, false);
4621 } else if (!strcmp(str
, "vtiip6")) {
4622 return system_add_vti_tunnel(dev
->ifname
, "vti6", link
, tb
, true);
4624 #ifdef IFLA_XFRM_MAX
4625 } else if (!strcmp(str
, "xfrm")) {
4626 return system_add_xfrm_tunnel(dev
->ifname
, "xfrm", link
, tb
);
4628 #ifdef IFLA_VXLAN_MAX
4629 } else if(!strcmp(str
, "vxlan")) {
4630 return system_add_vxlan(dev
->ifname
, link
, tb
, false);
4631 } else if(!strcmp(str
, "vxlan6")) {
4632 return system_add_vxlan(dev
->ifname
, link
, tb
, true);
4635 } else if (!strcmp(str
, "ipip")) {
4636 return system_add_proto_tunnel(dev
->ifname
, IPPROTO_IPIP
, link
, tb
);