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
);
174 ret
= nl_recvmsgs_default(ev
->sock
);
180 /* Increase rx buffer size on netlink socket */
182 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
185 /* Request full dump since some info got dropped */
186 struct rtgenmsg msg
= { .rtgen_family
= AF_UNSPEC
};
187 nl_send_simple(ev
->sock
, RTM_GETLINK
, NLM_F_DUMP
, &msg
, sizeof(msg
));
196 uloop_fd_delete(&ev
->uloop
);
201 nl_udebug_cb(void *priv
, struct nl_msg
*msg
)
203 struct nlmsghdr
*nlh
= nlmsg_hdr(msg
);
205 udebug_netlink_msg(priv
, nlmsg_get_proto(msg
), nlh
, nlh
->nlmsg_len
);
208 static struct nl_sock
*
209 create_socket(int protocol
, int groups
)
211 struct nl_sock
*sock
;
213 sock
= nl_socket_alloc();
218 nl_join_groups(sock
, groups
);
220 if (nl_connect(sock
, protocol
)) {
221 nl_socket_free(sock
);
225 nl_socket_set_tx_debug_cb(sock
, nl_udebug_cb
, &udb_nl
);
226 nl_socket_set_rx_debug_cb(sock
, nl_udebug_cb
, &udb_nl
);
232 create_raw_event_socket(struct event_socket
*ev
, int protocol
, int groups
,
233 uloop_fd_handler cb
, int flags
)
235 ev
->sock
= create_socket(protocol
, groups
);
239 ev
->uloop
.fd
= nl_socket_get_fd(ev
->sock
);
241 if (uloop_fd_add(&ev
->uloop
, ULOOP_READ
|flags
))
248 create_event_socket(struct event_socket
*ev
, int protocol
,
249 int (*cb
)(struct nl_msg
*msg
, void *arg
))
251 if (!create_raw_event_socket(ev
, protocol
, 0, handler_nl_event
, ULOOP_ERROR_CB
))
254 /* Install the valid custom callback handler */
255 nl_socket_modify_cb(ev
->sock
, NL_CB_VALID
, NL_CB_CUSTOM
, cb
, NULL
);
257 /* Disable sequence number checking on event sockets */
258 nl_socket_disable_seq_check(ev
->sock
);
260 /* Increase rx buffer size to 65K on event sockets */
262 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
269 create_hotplug_event_socket(struct event_socket
*ev
, int protocol
,
270 void (*cb
)(struct uloop_fd
*u
, unsigned int events
))
272 if (!create_raw_event_socket(ev
, protocol
, 1, cb
, ULOOP_ERROR_CB
))
275 /* Increase rx buffer size to 65K on event sockets */
277 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
284 system_rtn_aton(const char *src
, unsigned int *dst
)
289 if (!strcmp(src
, "local"))
291 else if (!strcmp(src
, "nat"))
293 else if (!strcmp(src
, "broadcast"))
295 else if (!strcmp(src
, "anycast"))
297 else if (!strcmp(src
, "multicast"))
299 else if (!strcmp(src
, "prohibit"))
301 else if (!strcmp(src
, "unreachable"))
303 else if (!strcmp(src
, "blackhole"))
305 else if (!strcmp(src
, "xresolve"))
307 else if (!strcmp(src
, "unicast"))
309 else if (!strcmp(src
, "throw"))
311 else if (!strcmp(src
, "failed_policy"))
312 n
= RTN_FAILED_POLICY
;
314 n
= strtoul(src
, &e
, 0);
315 if (!e
|| *e
|| e
== src
|| n
> 255)
324 system_tos_aton(const char *src
, unsigned *dst
)
328 *dst
= strtoul(src
, &e
, 16);
329 if (e
== src
|| *e
|| *dst
> 255)
335 int system_init(void)
337 static struct event_socket rtnl_event
;
338 static struct event_socket hotplug_event
;
340 sock_ioctl
= socket(AF_LOCAL
, SOCK_DGRAM
, 0);
341 system_fd_set_cloexec(sock_ioctl
);
343 /* Prepare socket for routing / address control */
344 sock_rtnl
= create_socket(NETLINK_ROUTE
, 0);
348 if (!create_event_socket(&rtnl_event
, NETLINK_ROUTE
, cb_rtnl_event
))
351 if (!create_hotplug_event_socket(&hotplug_event
, NETLINK_KOBJECT_UEVENT
,
352 handle_hotplug_event
))
355 /* Receive network link events form kernel */
356 nl_socket_add_membership(rtnl_event
.sock
, RTNLGRP_LINK
);
361 static void write_file(const char *path
, const char *val
)
365 fd
= open(path
, O_WRONLY
);
369 if (write(fd
, val
, strlen(val
))) {}
373 static int read_file(const char *path
, char *buf
, const size_t buf_sz
)
375 int fd
= -1, ret
= -1;
377 fd
= open(path
, O_RDONLY
);
381 ssize_t len
= read(fd
, buf
, buf_sz
- 1);
396 dev_sysctl_path(const char *prefix
, const char *ifname
, const char *file
)
398 snprintf(dev_buf
, sizeof(dev_buf
), "%s/sys/net/%s/%s/%s", proc_path
, prefix
, ifname
, file
);
404 dev_sysfs_path(const char *ifname
, const char *file
)
406 snprintf(dev_buf
, sizeof(dev_buf
), "%s/class/net/%s/%s", sysfs_path
, ifname
, file
);
412 system_set_dev_sysctl(const char *prefix
, const char *file
, const char *ifname
,
415 write_file(dev_sysctl_path(prefix
, ifname
, file
), val
);
419 system_get_dev_sysctl(const char *prefix
, const char *file
, const char *ifname
,
420 char *buf
, size_t buf_sz
)
422 return read_file(dev_sysctl_path(prefix
, ifname
, file
), buf
, buf_sz
);
426 system_set_dev_sysfs(const char *file
, const char *ifname
, const char *val
)
431 write_file(dev_sysfs_path(ifname
, file
), val
);
435 system_set_dev_sysfs_int(const char *file
, const char *ifname
, int val
)
439 snprintf(buf
, sizeof(buf
), "%d", val
);
440 system_set_dev_sysfs(file
, ifname
, buf
);
444 system_get_dev_sysfs(const char *file
, const char *ifname
, char *buf
, size_t buf_sz
)
446 return read_file(dev_sysfs_path(ifname
, file
), buf
, buf_sz
);
449 static void system_set_disable_ipv6(struct device
*dev
, const char *val
)
451 system_set_dev_sysctl("ipv6/conf", "disable_ipv6", dev
->ifname
, val
);
454 static void system_set_ip6segmentrouting(struct device
*dev
, const char *val
)
456 system_set_dev_sysctl("ipv6/conf", "seg6_enabled", dev
->ifname
, val
);
459 static void system_set_rpfilter(struct device
*dev
, const char *val
)
461 system_set_dev_sysctl("ipv4/conf", "rp_filter", dev
->ifname
, val
);
464 static void system_set_acceptlocal(struct device
*dev
, const char *val
)
466 system_set_dev_sysctl("ipv4/conf", "accept_local", dev
->ifname
, val
);
469 static void system_set_igmpversion(struct device
*dev
, const char *val
)
471 system_set_dev_sysctl("ipv4/conf", "force_igmp_version", dev
->ifname
, val
);
474 static void system_set_mldversion(struct device
*dev
, const char *val
)
476 system_set_dev_sysctl("ipv6/conf", "force_mld_version", dev
->ifname
, val
);
479 static void system_set_neigh4reachabletime(struct device
*dev
, const char *val
)
481 system_set_dev_sysctl("ipv4/neigh", "base_reachable_time_ms", dev
->ifname
, val
);
484 static void system_set_neigh6reachabletime(struct device
*dev
, const char *val
)
486 system_set_dev_sysctl("ipv6/neigh", "base_reachable_time_ms", dev
->ifname
, val
);
489 static void system_set_neigh4gcstaletime(struct device
*dev
, const char *val
)
491 system_set_dev_sysctl("ipv4/neigh", "gc_stale_time", dev
->ifname
, val
);
494 static void system_set_neigh6gcstaletime(struct device
*dev
, const char *val
)
496 system_set_dev_sysctl("ipv6/neigh", "gc_stale_time", dev
->ifname
, val
);
499 static void system_set_neigh4locktime(struct device
*dev
, const char *val
)
501 system_set_dev_sysctl("ipv4/neigh", "locktime", dev
->ifname
, val
);
504 static void system_set_dadtransmits(struct device
*dev
, const char *val
)
506 system_set_dev_sysctl("ipv6/conf", "dad_transmits", dev
->ifname
, val
);
509 static void system_set_sendredirects(struct device
*dev
, const char *val
)
511 system_set_dev_sysctl("ipv4/conf", "send_redirects", dev
->ifname
, val
);
514 static void system_set_drop_v4_unicast_in_l2_multicast(struct device
*dev
, const char *val
)
516 system_set_dev_sysctl("ipv4/conf", "drop_unicast_in_l2_multicast", dev
->ifname
, val
);
519 static void system_set_drop_v6_unicast_in_l2_multicast(struct device
*dev
, const char *val
)
521 system_set_dev_sysctl("ipv6/conf", "drop_unicast_in_l2_multicast", dev
->ifname
, val
);
524 static void system_set_drop_gratuitous_arp(struct device
*dev
, const char *val
)
526 system_set_dev_sysctl("ipv4/conf", "drop_gratuitous_arp", dev
->ifname
, val
);
529 static void system_set_drop_unsolicited_na(struct device
*dev
, const char *val
)
531 system_set_dev_sysctl("ipv6/conf", "drop_unsolicited_na", dev
->ifname
, val
);
534 static void system_set_arp_accept(struct device
*dev
, const char *val
)
536 system_set_dev_sysctl("ipv4/conf", "arp_accept", dev
->ifname
, val
);
539 static void system_bridge_set_multicast_to_unicast(struct device
*dev
, const char *val
)
541 system_set_dev_sysfs("brport/multicast_to_unicast", dev
->ifname
, val
);
544 static void system_bridge_set_multicast_fast_leave(struct device
*dev
, const char *val
)
546 system_set_dev_sysfs("brport/multicast_fast_leave", dev
->ifname
, val
);
549 static void system_bridge_set_hairpin_mode(struct device
*dev
, const char *val
)
551 system_set_dev_sysfs("brport/hairpin_mode", dev
->ifname
, val
);
554 static void system_bridge_set_proxyarp_wifi(struct device
*dev
, const char *val
)
556 system_set_dev_sysfs("brport/proxyarp_wifi", dev
->ifname
, val
);
559 static void system_bridge_set_bpdu_filter(struct device
*dev
, const char *val
)
561 system_set_dev_sysfs("brport/bpdu_filter", dev
->ifname
, val
);
564 static void system_bridge_set_isolated(struct device
*dev
, const char *val
)
566 system_set_dev_sysfs("brport/isolated", dev
->ifname
, val
);
569 static void system_bridge_set_multicast_router(struct device
*dev
, const char *val
)
571 system_set_dev_sysfs("brport/multicast_router", dev
->ifname
, val
);
574 void system_bridge_set_stp_state(struct device
*dev
, bool val
)
576 const char *valstr
= val
? "1" : "0";
578 system_set_dev_sysfs("bridge/stp_state", dev
->ifname
, valstr
);
581 static void system_bridge_set_learning(struct device
*dev
, const char *val
)
583 system_set_dev_sysfs("brport/learning", dev
->ifname
, val
);
586 static void system_bridge_set_unicast_flood(struct device
*dev
, const char *val
)
588 system_set_dev_sysfs("brport/unicast_flood", dev
->ifname
, val
);
591 static int system_get_disable_ipv6(struct device
*dev
, char *buf
, const size_t buf_sz
)
593 return system_get_dev_sysctl("ipv6/conf", "disable_ipv6",
594 dev
->ifname
, buf
, buf_sz
);
597 static int system_get_ip6segmentrouting(struct device
*dev
, char *buf
, const size_t buf_sz
)
599 return system_get_dev_sysctl("ipv6/conf", "seg6_enabled",
600 dev
->ifname
, buf
, buf_sz
);
603 static int system_get_rpfilter(struct device
*dev
, char *buf
, const size_t buf_sz
)
605 return system_get_dev_sysctl("ipv4/conf", "rp_filter",
606 dev
->ifname
, buf
, buf_sz
);
609 static int system_get_acceptlocal(struct device
*dev
, char *buf
, const size_t buf_sz
)
611 return system_get_dev_sysctl("ipv4/conf", "accept_local",
612 dev
->ifname
, buf
, buf_sz
);
615 static int system_get_igmpversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
617 return system_get_dev_sysctl("ipv4/conf", "force_igmp_version",
618 dev
->ifname
, buf
, buf_sz
);
621 static int system_get_mldversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
623 return system_get_dev_sysctl("ipv6/conf", "force_mld_version",
624 dev
->ifname
, buf
, buf_sz
);
627 static int system_get_neigh4reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
629 return system_get_dev_sysctl("ipv4/neigh", "base_reachable_time_ms",
630 dev
->ifname
, buf
, buf_sz
);
633 static int system_get_neigh6reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
635 return system_get_dev_sysctl("ipv6/neigh", "base_reachable_time_ms",
636 dev
->ifname
, buf
, buf_sz
);
639 static int system_get_neigh4gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
641 return system_get_dev_sysctl("ipv4/neigh", "gc_stale_time",
642 dev
->ifname
, buf
, buf_sz
);
645 static int system_get_neigh6gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
647 return system_get_dev_sysctl("ipv6/neigh", "gc_stale_time",
648 dev
->ifname
, buf
, buf_sz
);
651 static int system_get_neigh4locktime(struct device
*dev
, char *buf
, const size_t buf_sz
)
653 return system_get_dev_sysctl("ipv4/neigh", "locktime",
654 dev
->ifname
, buf
, buf_sz
);
657 static int system_get_dadtransmits(struct device
*dev
, char *buf
, const size_t buf_sz
)
659 return system_get_dev_sysctl("ipv6/conf", "dad_transmits",
660 dev
->ifname
, buf
, buf_sz
);
663 static int system_get_sendredirects(struct device
*dev
, char *buf
, const size_t buf_sz
)
665 return system_get_dev_sysctl("ipv4/conf", "send_redirects",
666 dev
->ifname
, buf
, buf_sz
);
670 static int system_get_drop_v4_unicast_in_l2_multicast(struct device
*dev
, char *buf
, const size_t buf_sz
)
672 return system_get_dev_sysctl("ipv4/conf", "drop_unicast_in_l2_multicast",
673 dev
->ifname
, buf
, buf_sz
);
676 static int system_get_drop_v6_unicast_in_l2_multicast(struct device
*dev
, char *buf
, const size_t buf_sz
)
678 return system_get_dev_sysctl("ipv6/conf", "drop_unicast_in_l2_multicast",
679 dev
->ifname
, buf
, buf_sz
);
682 static int system_get_drop_gratuitous_arp(struct device
*dev
, char *buf
, const size_t buf_sz
)
684 return system_get_dev_sysctl("ipv4/conf", "drop_gratuitous_arp",
685 dev
->ifname
, buf
, buf_sz
);
688 static int system_get_drop_unsolicited_na(struct device
*dev
, char *buf
, const size_t buf_sz
)
690 return system_get_dev_sysctl("ipv6/conf", "drop_unsolicited_na",
691 dev
->ifname
, buf
, buf_sz
);
694 static int system_get_arp_accept(struct device
*dev
, char *buf
, const size_t buf_sz
)
696 return system_get_dev_sysctl("ipv4/conf", "arp_accept",
697 dev
->ifname
, buf
, buf_sz
);
701 #define IFF_LOWER_UP 0x10000
705 system_device_update_state(struct device
*dev
, unsigned int flags
, unsigned int ifindex
)
707 if (dev
->type
== &simple_device_type
) {
709 device_set_disabled(dev
, !(flags
& IFF_UP
));
711 device_set_present(dev
, ifindex
> 0);
713 device_set_link(dev
, flags
& IFF_LOWER_UP
? true : false);
716 /* Evaluate netlink messages */
717 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
)
719 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
720 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
721 struct nlattr
*nla
[__IFLA_MAX
];
724 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
727 nlmsg_parse(nh
, sizeof(struct ifinfomsg
), nla
, __IFLA_MAX
- 1, NULL
);
728 if (!nla
[IFLA_IFNAME
])
731 dev
= device_find(nla_data(nla
[IFLA_IFNAME
]));
735 system_device_update_state(dev
, ifi
->ifi_flags
, ifi
->ifi_index
);
740 handle_hotplug_msg(char *data
, int size
)
742 const char *subsystem
= NULL
, *interface
= NULL
, *interface_old
= NULL
;
743 char *cur
, *end
, *sep
;
747 if (!strncmp(data
, "add@", 4) || !strncmp(data
, "move@", 5))
749 else if (!strncmp(data
, "remove@", 7))
754 skip
= strlen(data
) + 1;
757 for (cur
= data
+ skip
; cur
< end
; cur
+= skip
) {
758 skip
= strlen(cur
) + 1;
760 sep
= strchr(cur
, '=');
765 if (!strcmp(cur
, "INTERFACE"))
767 else if (!strcmp(cur
, "SUBSYSTEM")) {
769 if (strcmp(subsystem
, "net") != 0)
771 } else if (!strcmp(cur
, "DEVPATH_OLD")) {
772 interface_old
= strrchr(sep
+ 1, '/');
778 if (!subsystem
|| !interface
)
782 device_hotplug_event(interface_old
, false);
784 device_hotplug_event(interface
, add
);
788 handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
)
790 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
791 struct sockaddr_nl nla
;
792 unsigned char *buf
= NULL
;
795 while ((size
= nl_recv(ev
->sock
, &nla
, &buf
, NULL
)) > 0) {
797 handle_hotplug_msg((char *) buf
, size
);
807 /* Increase rx buffer size on netlink socket */
809 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
819 uloop_fd_delete(&ev
->uloop
);
823 static int system_rtnl_call(struct nl_msg
*msg
)
827 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
833 return nl_wait_for_ack(sock_rtnl
);
836 static struct nl_msg
*__system_ifinfo_msg(int af
, int index
, const char *ifname
, uint16_t type
, uint16_t flags
)
839 struct ifinfomsg iim
= {
844 msg
= nlmsg_alloc_simple(type
, flags
| NLM_F_REQUEST
);
848 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
850 nla_put_string(msg
, IFLA_IFNAME
, ifname
);
855 static struct nl_msg
*system_ifinfo_msg(const char *ifname
, uint16_t type
, uint16_t flags
)
857 return __system_ifinfo_msg(AF_UNSPEC
, 0, ifname
, type
, flags
);
860 static int system_link_del(const char *ifname
)
864 msg
= system_ifinfo_msg(ifname
, RTM_DELLINK
, 0);
868 return system_rtnl_call(msg
);
871 int system_bridge_delbr(struct device
*bridge
)
873 return system_link_del(bridge
->ifname
);
876 static int system_bridge_if(const char *bridge
, struct device
*dev
, int cmd
, void *data
)
880 memset(&ifr
, 0, sizeof(ifr
));
882 ifr
.ifr_ifindex
= dev
->ifindex
;
885 strncpy(ifr
.ifr_name
, bridge
, sizeof(ifr
.ifr_name
) - 1);
886 return ioctl(sock_ioctl
, cmd
, &ifr
);
889 static bool system_is_bridge(const char *name
)
893 return stat(dev_sysfs_path(name
, "bridge"), &st
) >= 0;
896 static char *system_get_bridge(const char *name
, char *buf
, int buflen
)
902 snprintf(buf
, buflen
, "%s/devices/virtual/net/*/brif/%s/bridge", sysfs_path
, name
);
903 if (glob(buf
, GLOB_NOSORT
, NULL
, &gl
) < 0)
907 len
= readlink(gl
.gl_pathv
[0], buf
, buflen
);
915 path
= strrchr(buf
, '/');
923 system_bridge_set_wireless(struct device
*bridge
, struct device
*dev
)
925 bool mcast_to_ucast
= dev
->wireless_ap
;
928 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
)
929 mcast_to_ucast
= dev
->settings
.multicast_to_unicast
;
930 else if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
&&
931 !bridge
->settings
.multicast_to_unicast
)
932 mcast_to_ucast
= false;
934 hairpin
= mcast_to_ucast
|| dev
->wireless_proxyarp
;
935 if (dev
->wireless_isolate
)
938 system_bridge_set_multicast_to_unicast(dev
, mcast_to_ucast
? "1" : "0");
939 system_bridge_set_hairpin_mode(dev
, hairpin
? "1" : "0");
940 system_bridge_set_proxyarp_wifi(dev
, dev
->wireless_proxyarp
? "1" : "0");
943 int system_bridge_addif(struct device
*bridge
, struct device
*dev
)
951 for (tries
= 0; tries
< 3; tries
++) {
953 oldbr
= system_get_bridge(dev
->ifname
, dev_buf
, sizeof(dev_buf
));
954 if (oldbr
&& !strcmp(oldbr
, bridge
->ifname
))
957 ret
= system_bridge_if(bridge
->ifname
, dev
, SIOCBRADDIF
, NULL
);
961 D(SYSTEM
, "Failed to add device '%s' to bridge '%s' (tries=%d): %s",
962 dev
->ifname
, bridge
->ifname
, tries
, strerror(errno
));
966 system_bridge_set_wireless(bridge
, dev
);
968 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
969 snprintf(buf
, sizeof(buf
), "%u", dev
->settings
.multicast_router
);
970 system_bridge_set_multicast_router(dev
, buf
);
973 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
&&
974 dev
->settings
.multicast_fast_leave
)
975 system_bridge_set_multicast_fast_leave(dev
, "1");
977 if (dev
->settings
.flags
& DEV_OPT_LEARNING
&&
978 !dev
->settings
.learning
)
979 system_bridge_set_learning(dev
, "0");
981 if (dev
->settings
.flags
& DEV_OPT_UNICAST_FLOOD
&&
982 !dev
->settings
.unicast_flood
)
983 system_bridge_set_unicast_flood(dev
, "0");
985 if (dev
->settings
.flags
& DEV_OPT_ISOLATE
&&
986 dev
->settings
.isolate
)
987 system_bridge_set_isolated(dev
, "1");
989 if (dev
->bpdu_filter
)
990 system_bridge_set_bpdu_filter(dev
, dev
->bpdu_filter
? "1" : "0");
995 int system_bridge_delif(struct device
*bridge
, struct device
*dev
)
997 return system_bridge_if(bridge
->ifname
, dev
, SIOCBRDELIF
, NULL
);
1000 int system_bridge_vlan(const char *iface
, uint16_t vid
, int16_t vid_end
, bool add
, unsigned int vflags
)
1002 struct bridge_vlan_info vinfo
= { .vid
= vid
, };
1003 unsigned short flags
= 0;
1004 struct nlattr
*afspec
;
1009 index
= if_nametoindex(iface
);
1013 nlm
= __system_ifinfo_msg(PF_BRIDGE
, index
, NULL
, add
? RTM_SETLINK
: RTM_DELLINK
, 0);
1017 if (vflags
& BRVLAN_F_SELF
)
1018 flags
|= BRIDGE_FLAGS_SELF
;
1020 if (vflags
& BRVLAN_F_PVID
)
1021 vinfo
.flags
|= BRIDGE_VLAN_INFO_PVID
;
1023 if (vflags
& BRVLAN_F_UNTAGGED
)
1024 vinfo
.flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
1026 afspec
= nla_nest_start(nlm
, IFLA_AF_SPEC
);
1033 nla_put_u16(nlm
, IFLA_BRIDGE_FLAGS
, flags
);
1036 vinfo
.flags
|= BRIDGE_VLAN_INFO_RANGE_BEGIN
;
1038 nla_put(nlm
, IFLA_BRIDGE_VLAN_INFO
, sizeof(vinfo
), &vinfo
);
1040 if (vid_end
> vid
) {
1041 vinfo
.flags
&= ~BRIDGE_VLAN_INFO_RANGE_BEGIN
;
1042 vinfo
.flags
|= BRIDGE_VLAN_INFO_RANGE_END
;
1043 vinfo
.vid
= vid_end
;
1044 nla_put(nlm
, IFLA_BRIDGE_VLAN_INFO
, sizeof(vinfo
), &vinfo
);
1047 nla_nest_end(nlm
, afspec
);
1049 return system_rtnl_call(nlm
);
1056 int system_bonding_set_device(struct device
*dev
, struct bonding_config
*cfg
)
1058 const char *ifname
= dev
->ifname
;
1059 struct blob_attr
*cur
;
1060 char op
= cfg
? '+' : '-';
1064 snprintf(dev_buf
, sizeof(dev_buf
), "%s/class/net/bonding_masters", sysfs_path
);
1065 snprintf(buf
, sizeof(buf
), "%c%s", op
, ifname
);
1066 write_file(dev_buf
, buf
);
1071 system_set_dev_sysfs("bonding/mode", ifname
, bonding_policy_str
[cfg
->policy
]);
1073 system_set_dev_sysfs_int("bonding/all_ports_active", ifname
, cfg
->all_ports_active
);
1075 if (cfg
->policy
== BONDING_MODE_BALANCE_XOR
||
1076 cfg
->policy
== BONDING_MODE_BALANCE_TLB
||
1077 cfg
->policy
== BONDING_MODE_8023AD
)
1078 system_set_dev_sysfs("bonding/xmit_hash_policy", ifname
, cfg
->xmit_hash_policy
);
1080 if (cfg
->policy
== BONDING_MODE_8023AD
) {
1081 system_set_dev_sysfs("bonding/ad_actor_system", ifname
, cfg
->ad_actor_system
);
1082 system_set_dev_sysfs_int("bonding/ad_actor_sys_prio", ifname
, cfg
->ad_actor_sys_prio
);
1083 system_set_dev_sysfs("bonding/ad_select", ifname
, cfg
->ad_select
);
1084 system_set_dev_sysfs("bonding/lacp_rate", ifname
, cfg
->lacp_rate
);
1085 system_set_dev_sysfs_int("bonding/min_links", ifname
, cfg
->min_links
);
1088 if (cfg
->policy
== BONDING_MODE_BALANCE_RR
)
1089 system_set_dev_sysfs_int("bonding/packets_per_slave", ifname
, cfg
->packets_per_port
);
1091 if (cfg
->policy
== BONDING_MODE_BALANCE_TLB
||
1092 cfg
->policy
== BONDING_MODE_BALANCE_ALB
)
1093 system_set_dev_sysfs_int("bonding/lp_interval", ifname
, cfg
->lp_interval
);
1095 if (cfg
->policy
== BONDING_MODE_BALANCE_TLB
)
1096 system_set_dev_sysfs_int("bonding/tlb_dynamic_lb", ifname
, cfg
->dynamic_lb
);
1097 system_set_dev_sysfs_int("bonding/resend_igmp", ifname
, cfg
->resend_igmp
);
1098 system_set_dev_sysfs_int("bonding/num_grat_arp", ifname
, cfg
->num_peer_notif
);
1099 system_set_dev_sysfs("bonding/primary_reselect", ifname
, cfg
->primary_reselect
);
1100 system_set_dev_sysfs("bonding/fail_over_mac", ifname
, cfg
->failover_mac
);
1102 system_set_dev_sysfs_int((cfg
->monitor_arp
?
1103 "bonding/arp_interval" :
1104 "bonding/miimon"), ifname
, cfg
->monitor_interval
);
1106 blobmsg_for_each_attr(cur
, cfg
->arp_target
, rem
) {
1107 snprintf(buf
, sizeof(buf
), "+%s", blobmsg_get_string(cur
));
1108 system_set_dev_sysfs("bonding/arp_ip_target", ifname
, buf
);
1111 system_set_dev_sysfs_int("bonding/arp_all_targets", ifname
, cfg
->arp_all_targets
);
1112 if (cfg
->policy
< BONDING_MODE_8023AD
)
1113 system_set_dev_sysfs("bonding/arp_validate", ifname
, cfg
->arp_validate
);
1114 system_set_dev_sysfs_int("bonding/use_carrier", ifname
, cfg
->use_carrier
);
1115 if (!cfg
->monitor_arp
&& cfg
->monitor_interval
) {
1116 system_set_dev_sysfs_int("bonding/updelay", ifname
, cfg
->updelay
);
1117 system_set_dev_sysfs_int("bonding/downdelay", ifname
, cfg
->downdelay
);
1123 int system_bonding_set_port(struct device
*dev
, struct device
*port
, bool add
, bool primary
)
1125 const char *port_name
= port
->ifname
;
1126 const char op_ch
= add
? '+' : '-';
1127 char buf
[IFNAMSIZ
+ 1];
1129 snprintf(buf
, sizeof(buf
), "%c%s", op_ch
, port_name
);
1130 system_if_down(port
);
1131 system_set_dev_sysfs("bonding/slaves", dev
->ifname
, buf
);
1135 system_set_dev_sysfs("bonding/primary", dev
->ifname
,
1136 add
? port_name
: "");
1141 int system_if_resolve(struct device
*dev
)
1145 memset(&ifr
, 0, sizeof(ifr
));
1146 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1147 if (!ioctl(sock_ioctl
, SIOCGIFINDEX
, &ifr
))
1148 return ifr
.ifr_ifindex
;
1153 static int system_if_flags(const char *ifname
, unsigned add
, unsigned rem
)
1157 memset(&ifr
, 0, sizeof(ifr
));
1158 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
1159 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) < 0)
1162 ifr
.ifr_flags
|= add
;
1163 ifr
.ifr_flags
&= ~rem
;
1164 return ioctl(sock_ioctl
, SIOCSIFFLAGS
, &ifr
);
1176 static bool check_ifaddr(struct nlmsghdr
*hdr
, int ifindex
)
1178 struct ifaddrmsg
*ifa
= NLMSG_DATA(hdr
);
1180 return (long)ifa
->ifa_index
== ifindex
;
1183 static bool check_route(struct nlmsghdr
*hdr
, int ifindex
)
1185 struct rtmsg
*r
= NLMSG_DATA(hdr
);
1186 struct nlattr
*tb
[__RTA_MAX
];
1188 if (r
->rtm_protocol
== RTPROT_KERNEL
&&
1189 r
->rtm_family
== AF_INET6
)
1192 nlmsg_parse(hdr
, sizeof(struct rtmsg
), tb
, __RTA_MAX
- 1, NULL
);
1196 return *(int *)RTA_DATA(tb
[RTA_OIF
]) == ifindex
;
1199 static bool check_rule(struct nlmsghdr
*hdr
, int ifindex
)
1204 static int cb_clear_event(struct nl_msg
*msg
, void *arg
)
1206 struct clear_data
*clr
= arg
;
1207 struct nlmsghdr
*hdr
= nlmsg_hdr(msg
);
1208 bool (*cb
)(struct nlmsghdr
*, int ifindex
);
1214 if (hdr
->nlmsg_type
!= RTM_NEWADDR
)
1220 type
= RTM_DELROUTE
;
1221 if (hdr
->nlmsg_type
!= RTM_NEWROUTE
)
1228 if (hdr
->nlmsg_type
!= RTM_NEWRULE
)
1237 if (!cb(hdr
, clr
->dev
? clr
->dev
->ifindex
: 0))
1240 if (type
== RTM_DELRULE
)
1241 D(SYSTEM
, "Remove a rule");
1243 D(SYSTEM
, "Remove %s from device %s",
1244 type
== RTM_DELADDR
? "an address" : "a route",
1247 memcpy(nlmsg_hdr(clr
->msg
), hdr
, hdr
->nlmsg_len
);
1248 hdr
= nlmsg_hdr(clr
->msg
);
1249 hdr
->nlmsg_type
= type
;
1250 hdr
->nlmsg_flags
= NLM_F_REQUEST
;
1252 nl_socket_disable_auto_ack(sock_rtnl
);
1253 ret
= nl_send_auto_complete(sock_rtnl
, clr
->msg
);
1255 if (type
== RTM_DELRULE
)
1256 D(SYSTEM
, "Error deleting a rule: %d", ret
);
1258 D(SYSTEM
, "Error deleting %s from device '%s': %d",
1259 type
== RTM_DELADDR
? "an address" : "a route",
1260 clr
->dev
->ifname
, ret
);
1263 nl_socket_enable_auto_ack(sock_rtnl
);
1269 cb_finish_event(struct nl_msg
*msg
, void *arg
)
1277 error_handler(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1280 *pending
= err
->error
;
1285 system_if_clear_entries(struct device
*dev
, int type
, int af
)
1287 struct clear_data clr
;
1289 struct rtmsg rtm
= {
1291 .rtm_flags
= RTM_F_CLONED
,
1293 int flags
= NLM_F_DUMP
;
1302 clr
.size
= sizeof(struct rtgenmsg
);
1305 clr
.size
= sizeof(struct rtmsg
);
1311 cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1315 clr
.msg
= nlmsg_alloc_simple(type
, flags
);
1319 nlmsg_append(clr
.msg
, &rtm
, clr
.size
, 0);
1320 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_clear_event
, &clr
);
1321 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, cb_finish_event
, &pending
);
1322 nl_cb_err(cb
, NL_CB_CUSTOM
, error_handler
, &pending
);
1324 if (nl_send_auto_complete(sock_rtnl
, clr
.msg
) < 0)
1328 nl_recvmsgs(sock_rtnl
, cb
);
1331 nlmsg_free(clr
.msg
);
1337 * Clear bridge (membership) state and bring down device
1339 void system_if_clear_state(struct device
*dev
)
1341 static char buf
[256];
1343 device_set_ifindex(dev
, system_if_resolve(dev
));
1345 if (dev
->external
|| !dev
->ifindex
)
1348 system_if_flags(dev
->ifname
, 0, IFF_UP
);
1350 if (system_is_bridge(dev
->ifname
)) {
1351 D(SYSTEM
, "Delete existing bridge named '%s'", dev
->ifname
);
1352 system_bridge_delbr(dev
);
1356 bridge
= system_get_bridge(dev
->ifname
, buf
, sizeof(buf
));
1358 D(SYSTEM
, "Remove device '%s' from bridge '%s'", dev
->ifname
, bridge
);
1359 system_bridge_if(bridge
, dev
, SIOCBRDELIF
, NULL
);
1362 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET
);
1363 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET
);
1364 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET6
);
1365 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET6
);
1366 system_if_clear_entries(dev
, RTM_GETNEIGH
, AF_INET
);
1367 system_if_clear_entries(dev
, RTM_GETNEIGH
, AF_INET6
);
1368 system_set_disable_ipv6(dev
, "0");
1371 static inline unsigned long
1372 sec_to_jiffies(int val
)
1374 return (unsigned long) val
* 100;
1377 int system_bridge_addbr(struct device
*bridge
, struct bridge_config
*cfg
)
1379 struct nlattr
*linkinfo
, *data
;
1384 msg
= system_ifinfo_msg(bridge
->ifname
, RTM_NEWLINK
, NLM_F_CREATE
| NLM_F_EXCL
);
1388 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1389 goto nla_put_failure
;
1391 nla_put_string(msg
, IFLA_INFO_KIND
, "bridge");
1393 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1394 goto nla_put_failure
;
1396 nla_put_u32(msg
, IFLA_BR_STP_STATE
, cfg
->stp
);
1397 nla_put_u32(msg
, IFLA_BR_FORWARD_DELAY
, sec_to_jiffies(cfg
->forward_delay
));
1398 nla_put_u8(msg
, IFLA_BR_MCAST_SNOOPING
, !!cfg
->igmp_snoop
);
1399 nla_put_u8(msg
, IFLA_BR_MCAST_QUERIER
, !!cfg
->multicast_querier
);
1400 nla_put_u32(msg
, IFLA_BR_MCAST_HASH_MAX
, cfg
->hash_max
);
1402 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
)
1403 nla_put_u8(msg
, IFLA_BR_MCAST_ROUTER
, !!bridge
->settings
.multicast_router
);
1405 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
) {
1406 nla_put_u32(msg
, IFLA_BR_MCAST_STARTUP_QUERY_CNT
, cfg
->robustness
);
1407 nla_put_u32(msg
, IFLA_BR_MCAST_LAST_MEMBER_CNT
, cfg
->robustness
);
1410 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
)
1411 nla_put_u64(msg
, IFLA_BR_MCAST_QUERY_INTVL
, cfg
->query_interval
);
1413 if (cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
)
1414 nla_put_u64(msg
, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL
, cfg
->query_response_interval
);
1416 if (cfg
->flags
& BRIDGE_OPT_LAST_MEMBER_INTERVAL
)
1417 nla_put_u64(msg
, IFLA_BR_MCAST_LAST_MEMBER_INTVL
, cfg
->last_member_interval
);
1419 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
||
1420 cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
||
1421 cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
1422 val
= cfg
->robustness
* cfg
->query_interval
+
1423 cfg
->query_response_interval
;
1425 nla_put_u64(msg
, IFLA_BR_MCAST_MEMBERSHIP_INTVL
, val
);
1427 val
-= cfg
->query_response_interval
/ 2;
1429 nla_put_u64(msg
, IFLA_BR_MCAST_QUERIER_INTVL
, val
);
1432 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1433 val
= cfg
->query_interval
/ 4;
1435 nla_put_u64(msg
, IFLA_BR_MCAST_STARTUP_QUERY_INTVL
, val
);
1438 nla_put_u8(msg
, IFLA_BR_VLAN_FILTERING
, !!cfg
->vlan_filtering
);
1439 nla_put_u16(msg
, IFLA_BR_PRIORITY
, cfg
->priority
);
1440 nla_put_u32(msg
, IFLA_BR_HELLO_TIME
, sec_to_jiffies(cfg
->hello_time
));
1441 nla_put_u32(msg
, IFLA_BR_MAX_AGE
, sec_to_jiffies(cfg
->max_age
));
1443 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
)
1444 nla_put_u32(msg
, IFLA_BR_AGEING_TIME
, sec_to_jiffies(cfg
->ageing_time
));
1446 nla_nest_end(msg
, data
);
1447 nla_nest_end(msg
, linkinfo
);
1449 rv
= system_rtnl_call(msg
);
1451 D(SYSTEM
, "Error adding bridge '%s': %d", bridge
->ifname
, rv
);
1460 int system_macvlan_add(struct device
*macvlan
, struct device
*dev
, struct macvlan_config
*cfg
)
1463 struct nlattr
*linkinfo
, *data
;
1466 static const struct {
1468 enum macvlan_mode val
;
1470 { "private", MACVLAN_MODE_PRIVATE
},
1471 { "vepa", MACVLAN_MODE_VEPA
},
1472 { "bridge", MACVLAN_MODE_BRIDGE
},
1473 { "passthru", MACVLAN_MODE_PASSTHRU
},
1476 msg
= system_ifinfo_msg(macvlan
->ifname
, RTM_NEWLINK
, NLM_F_CREATE
| NLM_F_EXCL
);
1480 if (cfg
->flags
& MACVLAN_OPT_MACADDR
)
1481 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1482 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1484 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1485 goto nla_put_failure
;
1487 nla_put_string(msg
, IFLA_INFO_KIND
, "macvlan");
1489 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1490 goto nla_put_failure
;
1493 for (i
= 0; i
< ARRAY_SIZE(modes
); i
++) {
1494 if (strcmp(cfg
->mode
, modes
[i
].name
) != 0)
1497 nla_put_u32(msg
, IFLA_MACVLAN_MODE
, modes
[i
].val
);
1502 nla_nest_end(msg
, data
);
1503 nla_nest_end(msg
, linkinfo
);
1505 rv
= system_rtnl_call(msg
);
1507 D(SYSTEM
, "Error adding macvlan '%s' over '%s': %d", macvlan
->ifname
, dev
->ifname
, rv
);
1516 int system_link_netns_move(struct device
*dev
, int netns_fd
, const char *target_ifname
)
1524 index
= system_if_resolve(dev
);
1525 msg
= __system_ifinfo_msg(AF_UNSPEC
, index
, target_ifname
, RTM_NEWLINK
, 0);
1529 nla_put_u32(msg
, IFLA_NET_NS_FD
, netns_fd
);
1530 return system_rtnl_call(msg
);
1533 int system_macvlan_del(struct device
*macvlan
)
1535 return system_link_del(macvlan
->ifname
);
1538 int system_netns_open(const pid_t target_ns
)
1540 char pid_net_path
[PATH_MAX
];
1542 snprintf(pid_net_path
, sizeof(pid_net_path
), "/proc/%u/ns/net", target_ns
);
1544 return open(pid_net_path
, O_RDONLY
);
1547 int system_netns_set(int netns_fd
)
1549 return setns(netns_fd
, CLONE_NEWNET
);
1552 int system_veth_add(struct device
*veth
, struct veth_config
*cfg
)
1555 struct ifinfomsg empty_iim
= {0,};
1556 struct nlattr
*linkinfo
, *data
, *veth_info
;
1559 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1564 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1566 if (cfg
->flags
& VETH_OPT_MACADDR
)
1567 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1568 nla_put_string(msg
, IFLA_IFNAME
, veth
->ifname
);
1570 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1571 goto nla_put_failure
;
1573 nla_put_string(msg
, IFLA_INFO_KIND
, "veth");
1575 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1576 goto nla_put_failure
;
1578 if (!(veth_info
= nla_nest_start(msg
, VETH_INFO_PEER
)))
1579 goto nla_put_failure
;
1581 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1583 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1584 nla_put_string(msg
, IFLA_IFNAME
, cfg
->peer_name
);
1585 if (cfg
->flags
& VETH_OPT_PEER_MACADDR
)
1586 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->peer_macaddr
), cfg
->peer_macaddr
);
1588 nla_nest_end(msg
, veth_info
);
1589 nla_nest_end(msg
, data
);
1590 nla_nest_end(msg
, linkinfo
);
1592 rv
= system_rtnl_call(msg
);
1594 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1595 D(SYSTEM
, "Error adding veth '%s' with peer '%s': %d", veth
->ifname
, cfg
->peer_name
, rv
);
1597 D(SYSTEM
, "Error adding veth '%s': %d", veth
->ifname
, rv
);
1607 int system_veth_del(struct device
*veth
)
1609 return system_link_del(veth
->ifname
);
1612 static int system_vlan(struct device
*dev
, int id
)
1614 struct vlan_ioctl_args ifr
= {
1615 .cmd
= SET_VLAN_NAME_TYPE_CMD
,
1616 .u
.name_type
= VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
,
1619 if (ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
) < 0)
1623 ifr
.cmd
= DEL_VLAN_CMD
;
1626 ifr
.cmd
= ADD_VLAN_CMD
;
1629 strncpy(ifr
.device1
, dev
->ifname
, sizeof(ifr
.device1
));
1630 return ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
1633 int system_vlan_add(struct device
*dev
, int id
)
1635 return system_vlan(dev
, id
);
1638 int system_vlan_del(struct device
*dev
)
1640 return system_vlan(dev
, -1);
1643 int system_vlandev_add(struct device
*vlandev
, struct device
*dev
, struct vlandev_config
*cfg
)
1646 struct nlattr
*linkinfo
, *data
, *qos
;
1647 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
};
1648 struct vlan_qos_mapping
*elem
;
1649 struct ifla_vlan_qos_mapping nl_qos_map
;
1652 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1657 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1658 nla_put_string(msg
, IFLA_IFNAME
, vlandev
->ifname
);
1659 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1661 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1662 goto nla_put_failure
;
1664 nla_put_string(msg
, IFLA_INFO_KIND
, "vlan");
1666 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1667 goto nla_put_failure
;
1669 nla_put_u16(msg
, IFLA_VLAN_ID
, cfg
->vid
);
1671 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
1672 nla_put_u16(msg
, IFLA_VLAN_PROTOCOL
, htons(cfg
->proto
));
1674 if(cfg
->proto
== VLAN_PROTO_8021AD
)
1675 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
);
1678 if (!(qos
= nla_nest_start(msg
, IFLA_VLAN_INGRESS_QOS
)))
1679 goto nla_put_failure
;
1681 vlist_simple_for_each_element(&cfg
->ingress_qos_mapping_list
, elem
, node
) {
1682 nl_qos_map
.from
= elem
->from
;
1683 nl_qos_map
.to
= elem
->to
;
1684 nla_put(msg
, IFLA_VLAN_QOS_MAPPING
, sizeof(nl_qos_map
), &nl_qos_map
);
1686 nla_nest_end(msg
, qos
);
1688 if (!(qos
= nla_nest_start(msg
, IFLA_VLAN_EGRESS_QOS
)))
1689 goto nla_put_failure
;
1691 vlist_simple_for_each_element(&cfg
->egress_qos_mapping_list
, elem
, node
) {
1692 nl_qos_map
.from
= elem
->from
;
1693 nl_qos_map
.to
= elem
->to
;
1694 nla_put(msg
, IFLA_VLAN_QOS_MAPPING
, sizeof(nl_qos_map
), &nl_qos_map
);
1696 nla_nest_end(msg
, qos
);
1698 nla_nest_end(msg
, data
);
1699 nla_nest_end(msg
, linkinfo
);
1701 rv
= system_rtnl_call(msg
);
1703 D(SYSTEM
, "Error adding vlandev '%s' over '%s': %d", vlandev
->ifname
, dev
->ifname
, rv
);
1712 int system_vlandev_del(struct device
*vlandev
)
1714 return system_link_del(vlandev
->ifname
);
1717 #if LINUX_VERSION_CODE >= KERNEL_VERSION(6,1,0)
1718 struct if_get_master_data
{
1724 static void if_get_master_dsa_linkinfo_attr(struct if_get_master_data
*data
,
1725 struct rtattr
*attr
)
1728 int rem
= RTA_PAYLOAD(attr
);
1730 for (cur
= RTA_DATA(attr
); RTA_OK(cur
, rem
); cur
= RTA_NEXT(cur
, rem
)) {
1731 if (cur
->rta_type
!= IFLA_DSA_MASTER
)
1734 data
->master_ifindex
= *(__u32
*)RTA_DATA(cur
);
1738 static void if_get_master_linkinfo_attr(struct if_get_master_data
*data
,
1739 struct rtattr
*attr
)
1742 int rem
= RTA_PAYLOAD(attr
);
1744 for (cur
= RTA_DATA(attr
); RTA_OK(cur
, rem
); cur
= RTA_NEXT(cur
, rem
)) {
1745 if (cur
->rta_type
!= IFLA_INFO_KIND
&& cur
->rta_type
!= IFLA_INFO_DATA
)
1748 if (cur
->rta_type
== IFLA_INFO_KIND
&& strcmp("dsa", (char *)RTA_DATA(cur
)))
1751 if (cur
->rta_type
== IFLA_INFO_DATA
)
1752 if_get_master_dsa_linkinfo_attr(data
, cur
);
1756 static int cb_if_get_master_valid(struct nl_msg
*msg
, void *arg
)
1758 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
1759 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
1760 struct if_get_master_data
*data
= (struct if_get_master_data
*)arg
;
1761 struct rtattr
*attr
;
1764 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
1767 if (ifi
->ifi_family
!= AF_UNSPEC
)
1770 if (ifi
->ifi_index
!= data
->ifindex
)
1773 attr
= IFLA_RTA(ifi
);
1774 rem
= nh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*ifi
));
1776 while (RTA_OK(attr
, rem
)) {
1777 if (attr
->rta_type
== IFLA_LINKINFO
)
1778 if_get_master_linkinfo_attr(data
, attr
);
1780 attr
= RTA_NEXT(attr
, rem
);
1786 static int cb_if_get_master_ack(struct nl_msg
*msg
, void *arg
)
1788 struct if_get_master_data
*data
= (struct if_get_master_data
*)arg
;
1793 static int cb_if_get_master_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1795 struct if_get_master_data
*data
= (struct if_get_master_data
*)arg
;
1800 static int system_if_get_master_ifindex(struct device
*dev
)
1802 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1804 struct ifinfomsg ifi
= {
1805 .ifi_family
= AF_UNSPEC
,
1808 struct if_get_master_data data
= {
1809 .ifindex
= if_nametoindex(dev
->ifname
),
1810 .master_ifindex
= -1,
1818 msg
= nlmsg_alloc_simple(RTM_GETLINK
, NLM_F_REQUEST
);
1822 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
1823 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
1826 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_get_master_valid
, &data
);
1827 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_get_master_ack
, &data
);
1828 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_get_master_error
, &data
);
1830 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
1834 while (data
.pending
> 0)
1835 nl_recvmsgs(sock_rtnl
, cb
);
1837 if (data
.master_ifindex
>= 0)
1838 ret
= data
.master_ifindex
;
1847 static void system_refresh_orig_macaddr(struct device
*dev
, struct device_settings
*s
)
1851 memset(&ifr
, 0, sizeof(ifr
));
1852 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1854 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0)
1855 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
1858 static void system_set_master(struct device
*dev
, int master_ifindex
)
1860 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
1863 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
);
1867 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
1868 nla_put_string(nlm
, IFLA_IFNAME
, dev
->ifname
);
1870 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
1874 nla_put_string(nlm
, IFLA_INFO_KIND
, "dsa");
1875 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
1879 nla_put_u32(nlm
, IFLA_DSA_MASTER
, master_ifindex
);
1881 nla_nest_end(nlm
, infodata
);
1882 nla_nest_end(nlm
, linkinfo
);
1884 system_rtnl_call(nlm
);
1893 static void ethtool_link_mode_clear_bit(__s8 nwords
, int nr
, __u32
*mask
)
1898 if (nr
>= (nwords
* 32))
1901 mask
[nr
/ 32] &= ~(1U << (nr
% 32));
1904 static bool ethtool_link_mode_test_bit(__s8 nwords
, int nr
, const __u32
*mask
)
1909 if (nr
>= (nwords
* 32))
1912 return !!(mask
[nr
/ 32] & (1U << (nr
% 32)));
1916 system_get_ethtool_gro(struct device
*dev
)
1918 struct ethtool_value ecmd
;
1919 struct ifreq ifr
= {
1920 .ifr_data
= (caddr_t
)&ecmd
,
1923 memset(&ecmd
, 0, sizeof(ecmd
));
1924 ecmd
.cmd
= ETHTOOL_GGRO
;
1925 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1927 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
))
1934 system_set_ethtool_gro(struct device
*dev
, struct device_settings
*s
)
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_SGRO
;
1944 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1946 ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
);
1950 system_set_ethtool_pause(struct device
*dev
, struct device_settings
*s
)
1952 struct ethtool_pauseparam pp
;
1953 struct ifreq ifr
= {
1954 .ifr_data
= (caddr_t
)&pp
,
1957 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1958 memset(&pp
, 0, sizeof(pp
));
1959 pp
.cmd
= ETHTOOL_GPAUSEPARAM
;
1960 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
))
1963 if (s
->flags
& DEV_OPT_RXPAUSE
|| s
->flags
& DEV_OPT_TXPAUSE
) {
1964 pp
.autoneg
= AUTONEG_DISABLE
;
1966 if (s
->flags
& DEV_OPT_PAUSE
) {
1967 if (s
->flags
& DEV_OPT_RXPAUSE
)
1968 pp
.rx_pause
= s
->rxpause
&& s
->pause
;
1970 pp
.rx_pause
= s
->pause
;
1972 if (s
->flags
& DEV_OPT_TXPAUSE
)
1973 pp
.tx_pause
= s
->txpause
&& s
->pause
;
1975 pp
.tx_pause
= s
->pause
;
1977 if (s
->flags
& DEV_OPT_RXPAUSE
)
1978 pp
.rx_pause
= s
->rxpause
;
1980 if (s
->flags
& DEV_OPT_TXPAUSE
)
1981 pp
.tx_pause
= s
->txpause
;
1984 if (s
->flags
& DEV_OPT_ASYM_PAUSE
&&
1985 !s
->asym_pause
&& (pp
.rx_pause
!= pp
.tx_pause
))
1986 pp
.rx_pause
= pp
.tx_pause
= false;
1988 pp
.autoneg
= AUTONEG_ENABLE
;
1989 /* Pause and Asym_Pause advertising bits will be set via
1990 * ETHTOOL_SLINKSETTINGS in system_set_ethtool_settings()
1994 pp
.cmd
= ETHTOOL_SPAUSEPARAM
;
1995 ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
);
1999 system_set_ethtool_eee_settings(struct device
*dev
, struct device_settings
*s
)
2001 struct ethtool_eee eeecmd
;
2002 struct ifreq ifr
= {
2003 .ifr_data
= (caddr_t
)&eeecmd
,
2006 memset(&eeecmd
, 0, sizeof(eeecmd
));
2007 eeecmd
.cmd
= ETHTOOL_SEEE
;
2008 eeecmd
.eee_enabled
= s
->eee
;
2009 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2011 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0)
2012 netifd_log_message(L_WARNING
, "cannot set eee %d for device %s", s
->eee
, dev
->ifname
);
2016 system_set_ethtool_settings(struct device
*dev
, struct device_settings
*s
)
2019 struct ethtool_link_settings req
;
2020 __u32 link_mode_data
[3 * 127];
2022 struct ifreq ifr
= {
2023 .ifr_data
= (caddr_t
)&ecmd
,
2027 __u32
*supported
, *advertising
;
2029 system_set_ethtool_pause(dev
, s
);
2031 if (s
->flags
& DEV_OPT_EEE
)
2032 system_set_ethtool_eee_settings(dev
, s
);
2034 memset(&ecmd
, 0, sizeof(ecmd
));
2035 ecmd
.req
.cmd
= ETHTOOL_GLINKSETTINGS
;
2036 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2038 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) < 0 ||
2039 ecmd
.req
.link_mode_masks_nwords
>= 0 ||
2040 ecmd
.req
.cmd
!= ETHTOOL_GLINKSETTINGS
)
2043 ecmd
.req
.link_mode_masks_nwords
= -ecmd
.req
.link_mode_masks_nwords
;
2045 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) < 0 ||
2046 ecmd
.req
.link_mode_masks_nwords
<= 0 ||
2047 ecmd
.req
.cmd
!= ETHTOOL_GLINKSETTINGS
)
2050 nwords
= ecmd
.req
.link_mode_masks_nwords
;
2051 supported
= &ecmd
.link_mode_data
[0];
2052 advertising
= &ecmd
.link_mode_data
[nwords
];
2053 memcpy(advertising
, supported
, sizeof(__u32
) * nwords
);
2055 for (i
= 0; i
< ARRAY_SIZE(ethtool_modes
); i
++) {
2056 if (s
->flags
& DEV_OPT_DUPLEX
) {
2058 ethtool_link_mode_clear_bit(nwords
, ethtool_modes
[i
].bit_half
, advertising
);
2060 ethtool_link_mode_clear_bit(nwords
, ethtool_modes
[i
].bit_full
, advertising
);
2062 if (!(s
->flags
& DEV_OPT_SPEED
) ||
2063 s
->speed
== ethtool_modes
[i
].speed
)
2066 ethtool_link_mode_clear_bit(nwords
, ethtool_modes
[i
].bit_full
, advertising
);
2067 ethtool_link_mode_clear_bit(nwords
, ethtool_modes
[i
].bit_half
, advertising
);
2070 if (s
->flags
& DEV_OPT_PAUSE
)
2072 ethtool_link_mode_clear_bit(nwords
, ETHTOOL_LINK_MODE_Pause_BIT
, advertising
);
2074 if (s
->flags
& DEV_OPT_ASYM_PAUSE
)
2076 ethtool_link_mode_clear_bit(nwords
, ETHTOOL_LINK_MODE_Asym_Pause_BIT
, advertising
);
2078 if (s
->flags
& DEV_OPT_AUTONEG
) {
2079 ecmd
.req
.autoneg
= s
->autoneg
? AUTONEG_ENABLE
: AUTONEG_DISABLE
;
2081 if (s
->flags
& DEV_OPT_SPEED
)
2082 ecmd
.req
.speed
= s
->speed
;
2084 if (s
->flags
& DEV_OPT_DUPLEX
)
2085 ecmd
.req
.duplex
= s
->duplex
? DUPLEX_FULL
: DUPLEX_HALF
;
2089 ecmd
.req
.cmd
= ETHTOOL_SLINKSETTINGS
;
2090 ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
);
2094 system_set_ethtool_settings_after_up(struct device
*dev
, struct device_settings
*s
)
2096 if (s
->flags
& DEV_OPT_GRO
)
2097 system_set_ethtool_gro(dev
, s
);
2101 system_if_get_settings(struct device
*dev
, struct device_settings
*s
)
2107 memset(&ifr
, 0, sizeof(ifr
));
2108 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2110 if (ioctl(sock_ioctl
, SIOCGIFMTU
, &ifr
) == 0) {
2111 s
->mtu
= ifr
.ifr_mtu
;
2112 s
->flags
|= DEV_OPT_MTU
;
2115 s
->mtu6
= system_update_ipv6_mtu(dev
, 0);
2117 s
->flags
|= DEV_OPT_MTU6
;
2119 if (ioctl(sock_ioctl
, SIOCGIFTXQLEN
, &ifr
) == 0) {
2120 s
->txqueuelen
= ifr
.ifr_qlen
;
2121 s
->flags
|= DEV_OPT_TXQUEUELEN
;
2124 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0) {
2125 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
2126 s
->flags
|= DEV_OPT_MACADDR
;
2129 if (!system_get_disable_ipv6(dev
, buf
, sizeof(buf
))) {
2130 s
->ipv6
= !strtoul(buf
, NULL
, 0);
2131 s
->flags
|= DEV_OPT_IPV6
;
2134 if (!system_get_ip6segmentrouting(dev
, buf
, sizeof(buf
))) {
2135 s
->ip6segmentrouting
= strtoul(buf
, NULL
, 0);
2136 s
->flags
|= DEV_OPT_IP6SEGMENTROUTING
;
2139 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) == 0) {
2140 s
->promisc
= ifr
.ifr_flags
& IFF_PROMISC
;
2141 s
->flags
|= DEV_OPT_PROMISC
;
2143 s
->multicast
= ifr
.ifr_flags
& IFF_MULTICAST
;
2144 s
->flags
|= DEV_OPT_MULTICAST
;
2147 if (!system_get_rpfilter(dev
, buf
, sizeof(buf
))) {
2148 s
->rpfilter
= strtoul(buf
, NULL
, 0);
2149 s
->flags
|= DEV_OPT_RPFILTER
;
2152 if (!system_get_acceptlocal(dev
, buf
, sizeof(buf
))) {
2153 s
->acceptlocal
= strtoul(buf
, NULL
, 0);
2154 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
2157 if (!system_get_igmpversion(dev
, buf
, sizeof(buf
))) {
2158 s
->igmpversion
= strtoul(buf
, NULL
, 0);
2159 s
->flags
|= DEV_OPT_IGMPVERSION
;
2162 if (!system_get_mldversion(dev
, buf
, sizeof(buf
))) {
2163 s
->mldversion
= strtoul(buf
, NULL
, 0);
2164 s
->flags
|= DEV_OPT_MLDVERSION
;
2167 if (!system_get_neigh4reachabletime(dev
, buf
, sizeof(buf
))) {
2168 s
->neigh4reachabletime
= strtoul(buf
, NULL
, 0);
2169 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
2172 if (!system_get_neigh6reachabletime(dev
, buf
, sizeof(buf
))) {
2173 s
->neigh6reachabletime
= strtoul(buf
, NULL
, 0);
2174 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
2177 if (!system_get_neigh4locktime(dev
, buf
, sizeof(buf
))) {
2178 s
->neigh4locktime
= strtol(buf
, NULL
, 0);
2179 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
2182 if (!system_get_neigh4gcstaletime(dev
, buf
, sizeof(buf
))) {
2183 s
->neigh4gcstaletime
= strtoul(buf
, NULL
, 0);
2184 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
2187 if (!system_get_neigh6gcstaletime(dev
, buf
, sizeof(buf
))) {
2188 s
->neigh6gcstaletime
= strtoul(buf
, NULL
, 0);
2189 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
2192 if (!system_get_dadtransmits(dev
, buf
, sizeof(buf
))) {
2193 s
->dadtransmits
= strtoul(buf
, NULL
, 0);
2194 s
->flags
|= DEV_OPT_DADTRANSMITS
;
2197 if (!system_get_sendredirects(dev
, buf
, sizeof(buf
))) {
2198 s
->sendredirects
= strtoul(buf
, NULL
, 0);
2199 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
2202 if (!system_get_drop_v4_unicast_in_l2_multicast(dev
, buf
, sizeof(buf
))) {
2203 s
->drop_v4_unicast_in_l2_multicast
= strtoul(buf
, NULL
, 0);
2204 s
->flags
|= DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
;
2207 if (!system_get_drop_v6_unicast_in_l2_multicast(dev
, buf
, sizeof(buf
))) {
2208 s
->drop_v6_unicast_in_l2_multicast
= strtoul(buf
, NULL
, 0);
2209 s
->flags
|= DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
;
2212 if (!system_get_drop_gratuitous_arp(dev
, buf
, sizeof(buf
))) {
2213 s
->drop_gratuitous_arp
= strtoul(buf
, NULL
, 0);
2214 s
->flags
|= DEV_OPT_DROP_GRATUITOUS_ARP
;
2217 if (!system_get_drop_unsolicited_na(dev
, buf
, sizeof(buf
))) {
2218 s
->drop_unsolicited_na
= strtoul(buf
, NULL
, 0);
2219 s
->flags
|= DEV_OPT_DROP_UNSOLICITED_NA
;
2222 if (!system_get_arp_accept(dev
, buf
, sizeof(buf
))) {
2223 s
->arp_accept
= strtoul(buf
, NULL
, 0);
2224 s
->flags
|= DEV_OPT_ARP_ACCEPT
;
2227 ret
= system_get_ethtool_gro(dev
);
2230 s
->flags
|= DEV_OPT_GRO
;
2233 #if LINUX_VERSION_CODE >= KERNEL_VERSION(6,1,0)
2234 ret
= system_if_get_master_ifindex(dev
);
2236 s
->master_ifindex
= ret
;
2237 s
->flags
|= DEV_OPT_MASTER
;
2243 system_if_apply_settings(struct device
*dev
, struct device_settings
*s
, uint64_t apply_mask
)
2248 apply_mask
&= s
->flags
;
2250 if (apply_mask
& DEV_OPT_MASTER
) {
2251 #if LINUX_VERSION_CODE >= KERNEL_VERSION(6,1,0)
2252 system_set_master(dev
, s
->master_ifindex
);
2253 if (!(apply_mask
& (DEV_OPT_MACADDR
| DEV_OPT_DEFAULT_MACADDR
)) || dev
->external
)
2254 system_refresh_orig_macaddr(dev
, &dev
->orig_settings
);
2256 netifd_log_message(L_WARNING
, "%s Your kernel is older than linux 6.1.0, changing DSA port conduit is not supported!", dev
->ifname
);
2260 memset(&ifr
, 0, sizeof(ifr
));
2261 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2262 if (apply_mask
& DEV_OPT_MTU
) {
2263 ifr
.ifr_mtu
= s
->mtu
;
2264 if (ioctl(sock_ioctl
, SIOCSIFMTU
, &ifr
) < 0)
2265 s
->flags
&= ~DEV_OPT_MTU
;
2267 if (apply_mask
& DEV_OPT_MTU6
) {
2268 system_update_ipv6_mtu(dev
, s
->mtu6
);
2270 if (apply_mask
& DEV_OPT_TXQUEUELEN
) {
2271 ifr
.ifr_qlen
= s
->txqueuelen
;
2272 if (ioctl(sock_ioctl
, SIOCSIFTXQLEN
, &ifr
) < 0)
2273 s
->flags
&= ~DEV_OPT_TXQUEUELEN
;
2275 if ((apply_mask
& (DEV_OPT_MACADDR
| DEV_OPT_DEFAULT_MACADDR
)) && !dev
->external
) {
2276 ifr
.ifr_hwaddr
.sa_family
= ARPHRD_ETHER
;
2277 memcpy(&ifr
.ifr_hwaddr
.sa_data
, s
->macaddr
, sizeof(s
->macaddr
));
2278 if (ioctl(sock_ioctl
, SIOCSIFHWADDR
, &ifr
) < 0)
2279 s
->flags
&= ~DEV_OPT_MACADDR
;
2281 if (apply_mask
& DEV_OPT_IPV6
)
2282 system_set_disable_ipv6(dev
, s
->ipv6
? "0" : "1");
2283 if (s
->flags
& DEV_OPT_IP6SEGMENTROUTING
& apply_mask
) {
2284 struct device dummy
= {
2287 bool ip6segmentrouting
= device_check_ip6segmentrouting();
2289 system_set_ip6segmentrouting(dev
, s
->ip6segmentrouting
? "1" : "0");
2290 system_set_ip6segmentrouting(&dummy
, ip6segmentrouting
? "1" : "0");
2292 if (apply_mask
& DEV_OPT_PROMISC
) {
2293 if (system_if_flags(dev
->ifname
, s
->promisc
? IFF_PROMISC
: 0,
2294 !s
->promisc
? IFF_PROMISC
: 0) < 0)
2295 s
->flags
&= ~DEV_OPT_PROMISC
;
2297 if (apply_mask
& DEV_OPT_RPFILTER
) {
2298 snprintf(buf
, sizeof(buf
), "%u", s
->rpfilter
);
2299 system_set_rpfilter(dev
, buf
);
2301 if (apply_mask
& DEV_OPT_ACCEPTLOCAL
)
2302 system_set_acceptlocal(dev
, s
->acceptlocal
? "1" : "0");
2303 if (apply_mask
& DEV_OPT_IGMPVERSION
) {
2304 snprintf(buf
, sizeof(buf
), "%u", s
->igmpversion
);
2305 system_set_igmpversion(dev
, buf
);
2307 if (apply_mask
& DEV_OPT_MLDVERSION
) {
2308 snprintf(buf
, sizeof(buf
), "%u", s
->mldversion
);
2309 system_set_mldversion(dev
, buf
);
2311 if (apply_mask
& DEV_OPT_NEIGHREACHABLETIME
) {
2312 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4reachabletime
);
2313 system_set_neigh4reachabletime(dev
, buf
);
2314 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6reachabletime
);
2315 system_set_neigh6reachabletime(dev
, buf
);
2317 if (apply_mask
& DEV_OPT_NEIGHLOCKTIME
) {
2318 snprintf(buf
, sizeof(buf
), "%d", s
->neigh4locktime
);
2319 system_set_neigh4locktime(dev
, buf
);
2321 if (apply_mask
& DEV_OPT_NEIGHGCSTALETIME
) {
2322 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4gcstaletime
);
2323 system_set_neigh4gcstaletime(dev
, buf
);
2324 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6gcstaletime
);
2325 system_set_neigh6gcstaletime(dev
, buf
);
2327 if (apply_mask
& DEV_OPT_DADTRANSMITS
) {
2328 snprintf(buf
, sizeof(buf
), "%u", s
->dadtransmits
);
2329 system_set_dadtransmits(dev
, buf
);
2331 if (apply_mask
& DEV_OPT_MULTICAST
) {
2332 if (system_if_flags(dev
->ifname
, s
->multicast
? IFF_MULTICAST
: 0,
2333 !s
->multicast
? IFF_MULTICAST
: 0) < 0)
2334 s
->flags
&= ~DEV_OPT_MULTICAST
;
2336 if (apply_mask
& DEV_OPT_SENDREDIRECTS
)
2337 system_set_sendredirects(dev
, s
->sendredirects
? "1" : "0");
2338 if (apply_mask
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
)
2339 system_set_drop_v4_unicast_in_l2_multicast(dev
, s
->drop_v4_unicast_in_l2_multicast
? "1" : "0");
2340 if (apply_mask
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
)
2341 system_set_drop_v6_unicast_in_l2_multicast(dev
, s
->drop_v6_unicast_in_l2_multicast
? "1" : "0");
2342 if (apply_mask
& DEV_OPT_DROP_GRATUITOUS_ARP
)
2343 system_set_drop_gratuitous_arp(dev
, s
->drop_gratuitous_arp
? "1" : "0");
2344 if (apply_mask
& DEV_OPT_DROP_UNSOLICITED_NA
)
2345 system_set_drop_unsolicited_na(dev
, s
->drop_unsolicited_na
? "1" : "0");
2346 if (apply_mask
& DEV_OPT_ARP_ACCEPT
)
2347 system_set_arp_accept(dev
, s
->arp_accept
? "1" : "0");
2348 system_set_ethtool_settings(dev
, s
);
2351 void system_if_apply_settings_after_up(struct device
*dev
, struct device_settings
*s
)
2353 system_set_ethtool_settings_after_up(dev
, s
);
2356 int system_if_up(struct device
*dev
)
2358 return system_if_flags(dev
->ifname
, IFF_UP
, 0);
2361 int system_if_down(struct device
*dev
)
2363 return system_if_flags(dev
->ifname
, 0, IFF_UP
);
2366 struct if_check_data
{
2372 static int cb_if_check_valid(struct nl_msg
*msg
, void *arg
)
2374 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
2375 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
2376 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
2378 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
2381 system_device_update_state(chk
->dev
, ifi
->ifi_flags
, ifi
->ifi_index
);
2385 static int cb_if_check_ack(struct nl_msg
*msg
, void *arg
)
2387 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
2392 static int cb_if_check_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
2394 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
2396 if (chk
->dev
->type
== &simple_device_type
)
2397 device_set_present(chk
->dev
, false);
2398 device_set_link(chk
->dev
, false);
2399 chk
->pending
= err
->error
;
2404 struct bridge_vlan_check_data
{
2405 struct device
*check_dev
;
2411 static void bridge_vlan_check_port(struct bridge_vlan_check_data
*data
,
2412 struct bridge_vlan_port
*port
,
2413 struct bridge_vlan_info
*vinfo
)
2415 uint16_t flags
= 0, diff
, mask
;
2417 if (port
->flags
& BRVLAN_F_PVID
)
2418 flags
|= BRIDGE_VLAN_INFO_PVID
;
2419 if (port
->flags
& BRVLAN_F_UNTAGGED
)
2420 flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
2422 diff
= vinfo
->flags
^ flags
;
2423 mask
= BRVLAN_F_UNTAGGED
| (flags
& BRIDGE_VLAN_INFO_PVID
);
2426 data
->pending
= false;
2432 static void bridge_vlan_check_attr(struct bridge_vlan_check_data
*data
,
2433 struct rtattr
*attr
)
2435 struct bridge_vlan_hotplug_port
*port
;
2436 struct bridge_vlan_info
*vinfo
;
2437 struct bridge_vlan
*vlan
;
2439 int rem
= RTA_PAYLOAD(attr
);
2442 for (cur
= RTA_DATA(attr
); RTA_OK(cur
, rem
); cur
= RTA_NEXT(cur
, rem
)) {
2443 if (cur
->rta_type
!= IFLA_BRIDGE_VLAN_INFO
)
2446 vinfo
= RTA_DATA(cur
);
2447 vlan
= vlist_find(&data
->check_dev
->vlans
, &vinfo
->vid
, vlan
, node
);
2450 data
->pending
= false;
2454 for (i
= 0; i
< vlan
->n_ports
; i
++)
2455 if (!vlan
->ports
[i
].check
)
2456 bridge_vlan_check_port(data
, &vlan
->ports
[i
], vinfo
);
2458 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
)
2459 if (!port
->port
.check
)
2460 bridge_vlan_check_port(data
, &port
->port
, vinfo
);
2464 static int bridge_vlan_check_cb(struct nl_msg
*msg
, void *arg
)
2466 struct bridge_vlan_check_data
*data
= arg
;
2467 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
2468 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
2469 struct rtattr
*attr
;
2472 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
2475 if (ifi
->ifi_family
!= AF_BRIDGE
)
2478 if (ifi
->ifi_index
!= data
->ifindex
)
2481 attr
= IFLA_RTA(ifi
);
2482 rem
= nh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*ifi
));
2483 while (RTA_OK(attr
, rem
)) {
2484 if (attr
->rta_type
== IFLA_AF_SPEC
)
2485 bridge_vlan_check_attr(data
, attr
);
2487 attr
= RTA_NEXT(attr
, rem
);
2493 static int bridge_vlan_ack_cb(struct nl_msg
*msg
, void *arg
)
2495 struct bridge_vlan_check_data
*data
= arg
;
2496 data
->pending
= false;
2500 static int bridge_vlan_error_cb(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
2502 struct bridge_vlan_check_data
*data
= arg
;
2503 data
->pending
= false;
2507 int system_bridge_vlan_check(struct device
*dev
, char *ifname
)
2509 struct bridge_vlan_check_data data
= {
2511 .ifindex
= if_nametoindex(ifname
),
2515 static struct ifinfomsg ifi
= {
2516 .ifi_family
= AF_BRIDGE
2518 static struct rtattr ext_req
= {
2519 .rta_type
= IFLA_EXT_MASK
,
2520 .rta_len
= RTA_LENGTH(sizeof(uint32_t)),
2522 uint32_t filter
= RTEXT_FILTER_BRVLAN
;
2523 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
2524 struct bridge_vlan
*vlan
;
2531 msg
= nlmsg_alloc_simple(RTM_GETLINK
, NLM_F_DUMP
);
2533 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
2534 nlmsg_append(msg
, &ext_req
, sizeof(ext_req
), NLMSG_ALIGNTO
) ||
2535 nlmsg_append(msg
, &filter
, sizeof(filter
), 0))
2538 vlist_for_each_element(&dev
->vlans
, vlan
, node
) {
2539 struct bridge_vlan_hotplug_port
*port
;
2541 for (i
= 0; i
< vlan
->n_ports
; i
++) {
2542 if (!strcmp(vlan
->ports
[i
].ifname
, ifname
))
2543 vlan
->ports
[i
].check
= 0;
2545 vlan
->ports
[i
].check
= -1;
2548 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
2549 if (!strcmp(port
->port
.ifname
, ifname
))
2550 port
->port
.check
= 0;
2552 port
->port
.check
= -1;
2556 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, bridge_vlan_check_cb
, &data
);
2557 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, bridge_vlan_ack_cb
, &data
);
2558 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, bridge_vlan_ack_cb
, &data
);
2559 nl_cb_err(cb
, NL_CB_CUSTOM
, bridge_vlan_error_cb
, &data
);
2561 if (nl_send_auto_complete(sock_rtnl
, msg
) < 0)
2565 while (data
.pending
)
2566 nl_recvmsgs(sock_rtnl
, cb
);
2568 vlist_for_each_element(&dev
->vlans
, vlan
, node
) {
2569 struct bridge_vlan_hotplug_port
*port
;
2571 for (i
= 0; i
< vlan
->n_ports
; i
++) {
2572 if (!vlan
->ports
[i
].check
) {
2578 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
2579 if (!port
->port
.check
) {
2592 int system_if_check(struct device
*dev
)
2594 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
2596 struct ifinfomsg ifi
= {
2597 .ifi_family
= AF_UNSPEC
,
2600 struct if_check_data chk
= {
2609 msg
= nlmsg_alloc_simple(RTM_GETLINK
, 0);
2613 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
2614 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
2617 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_check_valid
, &chk
);
2618 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_check_ack
, &chk
);
2619 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_check_error
, &chk
);
2621 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
2625 while (chk
.pending
> 0)
2626 nl_recvmsgs(sock_rtnl
, cb
);
2638 system_if_get_parent(struct device
*dev
)
2640 char buf
[64], *devname
;
2641 int ifindex
, iflink
;
2643 if (system_get_dev_sysfs("iflink", dev
->ifname
, buf
, sizeof(buf
)) < 0)
2646 iflink
= strtoul(buf
, NULL
, 0);
2647 ifindex
= system_if_resolve(dev
);
2648 if (!iflink
|| iflink
== ifindex
)
2651 devname
= if_indextoname(iflink
, buf
);
2655 return device_get(devname
, true);
2659 read_string_file(int dir_fd
, const char *file
, char *buf
, int len
)
2665 fd
= openat(dir_fd
, file
, O_RDONLY
);
2670 len
= read(fd
, buf
, len
- 1);
2674 } else if (len
> 0) {
2677 c
= strchr(buf
, '\n');
2690 read_uint64_file(int dir_fd
, const char *file
, uint64_t *val
)
2695 ret
= read_string_file(dir_fd
, file
, buf
, sizeof(buf
));
2697 *val
= strtoull(buf
, NULL
, 0);
2703 system_if_force_external(const char *ifname
)
2707 return stat(dev_sysfs_path(ifname
, "phy80211"), &s
) == 0;
2711 system_netdevtype_name(unsigned short dev_type
)
2715 for (i
= 0; i
< ARRAY_SIZE(netdev_types
); i
++) {
2716 if (netdev_types
[i
].id
== dev_type
)
2717 return netdev_types
[i
].name
;
2720 /* the last key is used by default */
2721 i
= ARRAY_SIZE(netdev_types
) - 1;
2723 return netdev_types
[i
].name
;
2727 system_add_devtype(struct blob_buf
*b
, const char *ifname
)
2732 if (!system_get_dev_sysfs("uevent", ifname
, buf
, sizeof(buf
))) {
2733 const char *info
= "DEVTYPE=";
2734 char *context
= NULL
;
2735 const char *line
= strtok_r(buf
, "\r\n", &context
);
2737 while (line
!= NULL
) {
2738 char *index
= strstr(line
, info
);
2740 if (index
!= NULL
) {
2741 blobmsg_add_string(b
, "devtype", index
+ strlen(info
));
2746 line
= strtok_r(NULL
, "\r\n", &context
);
2751 unsigned short number
= 0;
2752 const char *name
= NULL
;
2754 if (!system_get_dev_sysfs("type", ifname
, buf
, sizeof(buf
))) {
2755 number
= strtoul(buf
, NULL
, 0);
2756 name
= system_netdevtype_name(number
);
2757 blobmsg_add_string(b
, "devtype", name
);
2762 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
2765 ethtool_feature_count(const char *ifname
)
2768 struct ethtool_sset_info hdr
;
2772 .cmd
= ETHTOOL_GSSET_INFO
,
2773 .sset_mask
= 1 << ETH_SS_FEATURES
2777 struct ifreq ifr
= {
2778 .ifr_data
= (void *)&req
2781 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
2783 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0)
2786 if (!req
.hdr
.sset_mask
)
2793 ethtool_feature_index(const char *ifname
, const char *keyname
)
2795 struct ethtool_gstrings
*feature_names
;
2796 struct ifreq ifr
= { 0 };
2800 n_features
= ethtool_feature_count(ifname
);
2802 if (n_features
<= 0)
2805 feature_names
= calloc(1, sizeof(*feature_names
) + n_features
* ETH_GSTRING_LEN
);
2810 feature_names
->cmd
= ETHTOOL_GSTRINGS
;
2811 feature_names
->string_set
= ETH_SS_FEATURES
;
2812 feature_names
->len
= n_features
;
2814 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
2815 ifr
.ifr_data
= (void *)feature_names
;
2817 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0) {
2818 free(feature_names
);
2823 for (i
= 0; i
< feature_names
->len
; i
++)
2824 if (!strcmp((char *)&feature_names
->data
[i
* ETH_GSTRING_LEN
], keyname
))
2827 if (i
>= feature_names
->len
)
2830 free(feature_names
);
2836 ethtool_feature_value(const char *ifname
, const char *keyname
)
2838 struct ethtool_get_features_block
*feature_block
;
2839 struct ethtool_gfeatures
*feature_values
;
2840 struct ifreq ifr
= { 0 };
2841 int32_t feature_idx
;
2844 feature_idx
= ethtool_feature_index(ifname
, keyname
);
2846 if (feature_idx
< 0)
2849 feature_values
= calloc(1,
2850 sizeof(*feature_values
) +
2851 sizeof(feature_values
->features
[0]) * DIV_ROUND_UP(feature_idx
, 32));
2853 if (!feature_values
)
2856 feature_values
->cmd
= ETHTOOL_GFEATURES
;
2857 feature_values
->size
= DIV_ROUND_UP(feature_idx
, 32);
2859 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
2860 ifr
.ifr_data
= (void *)feature_values
;
2862 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0) {
2863 free(feature_values
);
2868 feature_block
= &feature_values
->features
[feature_idx
/ 32];
2869 active
= feature_block
->active
& (1U << feature_idx
% 32);
2871 free(feature_values
);
2877 system_add_link_mode_name(struct blob_buf
*b
, int i
, bool half
)
2881 /* allocate string buffer large enough for the mode name and a suffix
2882 * "-F" or "-H" indicating full duplex or half duplex.
2884 buf
= blobmsg_alloc_string_buffer(b
, NULL
, strlen(ethtool_modes
[i
].name
) + 3);
2888 strcpy(buf
, ethtool_modes
[i
].name
);
2894 blobmsg_add_string_buffer(b
);
2898 system_add_link_modes(__s8 nwords
, struct blob_buf
*b
, __u32
*mask
)
2902 for (i
= 0; i
< ARRAY_SIZE(ethtool_modes
); i
++) {
2903 if (ethtool_link_mode_test_bit(nwords
, ethtool_modes
[i
].bit_half
, mask
))
2904 system_add_link_mode_name(b
, i
, true);
2906 if (ethtool_link_mode_test_bit(nwords
, ethtool_modes
[i
].bit_full
, mask
))
2907 system_add_link_mode_name(b
, i
, false);
2912 system_add_pause_modes(__s8 nwords
, struct blob_buf
*b
, __u32
*mask
)
2914 if (ethtool_link_mode_test_bit(nwords
, ETHTOOL_LINK_MODE_Pause_BIT
, mask
))
2915 blobmsg_add_string(b
, NULL
, "pause");
2917 if (ethtool_link_mode_test_bit(nwords
, ETHTOOL_LINK_MODE_Asym_Pause_BIT
, mask
))
2918 blobmsg_add_string(b
, NULL
, "asym_pause");
2923 system_add_ethtool_pause_an(struct blob_buf
*b
, __s8 nwords
,
2924 __u32
*advertising
, __u32
*lp_advertising
)
2926 bool an_rx
= false, an_tx
= false;
2929 d
= blobmsg_open_array(b
, "negotiated");
2931 /* Work out negotiated pause frame usage per
2932 * IEEE 802.3-2005 table 28B-3.
2934 if (ethtool_link_mode_test_bit(nwords
,
2935 ETHTOOL_LINK_MODE_Pause_BIT
,
2937 ethtool_link_mode_test_bit(nwords
,
2938 ETHTOOL_LINK_MODE_Pause_BIT
,
2942 } else if (ethtool_link_mode_test_bit(nwords
,
2943 ETHTOOL_LINK_MODE_Asym_Pause_BIT
,
2945 ethtool_link_mode_test_bit(nwords
,
2946 ETHTOOL_LINK_MODE_Asym_Pause_BIT
,
2948 if (ethtool_link_mode_test_bit(nwords
,
2949 ETHTOOL_LINK_MODE_Pause_BIT
,
2952 else if (ethtool_link_mode_test_bit(nwords
,
2953 ETHTOOL_LINK_MODE_Pause_BIT
,
2958 blobmsg_add_string(b
, NULL
, "rx");
2961 blobmsg_add_string(b
, NULL
, "tx");
2963 blobmsg_close_array(b
, d
);
2967 system_get_ethtool_pause(struct device
*dev
, bool *rx_pause
, bool *tx_pause
, bool *pause_autoneg
)
2969 struct ethtool_pauseparam pp
;
2970 struct ifreq ifr
= {
2971 .ifr_data
= (caddr_t
)&pp
,
2974 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2975 memset(&pp
, 0, sizeof(pp
));
2976 pp
.cmd
= ETHTOOL_GPAUSEPARAM
;
2979 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) == -1) {
2980 *pause_autoneg
= true;
2984 *rx_pause
= pp
.rx_pause
;
2985 *tx_pause
= pp
.tx_pause
;
2986 *pause_autoneg
= pp
.autoneg
;
2990 system_if_dump_info(struct device
*dev
, struct blob_buf
*b
)
2992 __u32
*supported
, *advertising
, *lp_advertising
;
2993 bool rx_pause
, tx_pause
, pause_autoneg
;
2995 struct ethtool_link_settings req
;
2996 __u32 link_mode_data
[3 * 127];
2998 struct ifreq ifr
= {
2999 .ifr_data
= (caddr_t
)&ecmd
,
3005 system_get_ethtool_pause(dev
, &rx_pause
, &tx_pause
, &pause_autoneg
);
3007 memset(&ecmd
, 0, sizeof(ecmd
));
3008 ecmd
.req
.cmd
= ETHTOOL_GLINKSETTINGS
;
3009 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
3011 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) < 0 ||
3012 ecmd
.req
.link_mode_masks_nwords
>= 0 ||
3013 ecmd
.req
.cmd
!= ETHTOOL_GLINKSETTINGS
)
3016 ecmd
.req
.link_mode_masks_nwords
= -ecmd
.req
.link_mode_masks_nwords
;
3018 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) < 0 ||
3019 ecmd
.req
.link_mode_masks_nwords
<= 0 ||
3020 ecmd
.req
.cmd
!= ETHTOOL_GLINKSETTINGS
)
3023 nwords
= ecmd
.req
.link_mode_masks_nwords
;
3024 supported
= &ecmd
.link_mode_data
[0];
3025 advertising
= &ecmd
.link_mode_data
[nwords
];
3026 lp_advertising
= &ecmd
.link_mode_data
[2 * nwords
];
3028 c
= blobmsg_open_array(b
, "link-advertising");
3029 system_add_link_modes(nwords
, b
, advertising
);
3030 blobmsg_close_array(b
, c
);
3032 c
= blobmsg_open_array(b
, "link-partner-advertising");
3033 system_add_link_modes(nwords
, b
, lp_advertising
);
3034 blobmsg_close_array(b
, c
);
3036 c
= blobmsg_open_array(b
, "link-supported");
3037 system_add_link_modes(nwords
, b
, supported
);
3038 blobmsg_close_array(b
, c
);
3040 if (ethtool_validate_speed(ecmd
.req
.speed
) &&
3041 (ecmd
.req
.speed
!= (__u32
)SPEED_UNKNOWN
) &&
3042 (ecmd
.req
.speed
!= 0)) {
3043 s
= blobmsg_alloc_string_buffer(b
, "speed", 10);
3044 snprintf(s
, 8, "%d%c", ecmd
.req
.speed
,
3045 ecmd
.req
.duplex
== DUPLEX_HALF
? 'H' : 'F');
3046 blobmsg_add_string_buffer(b
);
3048 blobmsg_add_u8(b
, "autoneg", !!ecmd
.req
.autoneg
);
3050 c
= blobmsg_open_table(b
, "flow-control");
3051 blobmsg_add_u8(b
, "autoneg", pause_autoneg
);
3053 d
= blobmsg_open_array(b
, "supported");
3054 system_add_pause_modes(nwords
, b
, supported
);
3055 blobmsg_close_array(b
, d
);
3057 if (pause_autoneg
) {
3058 d
= blobmsg_open_array(b
, "link-advertising");
3059 system_add_pause_modes(nwords
, b
, advertising
);
3060 blobmsg_close_array(b
, d
);
3063 d
= blobmsg_open_array(b
, "link-partner-advertising");
3064 system_add_pause_modes(nwords
, b
, lp_advertising
);
3065 blobmsg_close_array(b
, d
);
3067 if (pause_autoneg
) {
3068 system_add_ethtool_pause_an(b
, nwords
, advertising
,
3071 d
= blobmsg_open_array(b
, "selected");
3073 blobmsg_add_string(b
, NULL
, "rx");
3076 blobmsg_add_string(b
, NULL
, "tx");
3078 blobmsg_close_array(b
, d
);
3081 blobmsg_close_table(b
, c
);
3083 blobmsg_add_u8(b
, "hw-tc-offload",
3084 ethtool_feature_value(dev
->ifname
, "hw-tc-offload"));
3086 system_add_devtype(b
, dev
->ifname
);
3092 system_if_dump_stats(struct device
*dev
, struct blob_buf
*b
)
3094 const char *const counters
[] = {
3095 "collisions", "rx_frame_errors", "tx_compressed",
3096 "multicast", "rx_length_errors", "tx_dropped",
3097 "rx_bytes", "rx_missed_errors", "tx_errors",
3098 "rx_compressed", "rx_over_errors", "tx_fifo_errors",
3099 "rx_crc_errors", "rx_packets", "tx_heartbeat_errors",
3100 "rx_dropped", "tx_aborted_errors", "tx_packets",
3101 "rx_errors", "tx_bytes", "tx_window_errors",
3102 "rx_fifo_errors", "tx_carrier_errors",
3108 stats_dir
= open(dev_sysfs_path(dev
->ifname
, "statistics"), O_DIRECTORY
);
3112 for (i
= 0; i
< ARRAY_SIZE(counters
); i
++)
3113 if (read_uint64_file(stats_dir
, counters
[i
], &val
))
3114 blobmsg_add_u64(b
, counters
[i
], val
);
3120 static int system_addr(struct device
*dev
, struct device_addr
*addr
, int cmd
)
3122 bool v4
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
);
3123 int alen
= v4
? 4 : 16;
3124 unsigned int flags
= 0;
3125 struct ifaddrmsg ifa
= {
3126 .ifa_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
3127 .ifa_prefixlen
= addr
->mask
,
3128 .ifa_index
= dev
->ifindex
,
3132 if (cmd
== RTM_NEWADDR
)
3133 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
3135 msg
= nlmsg_alloc_simple(cmd
, flags
);
3139 nlmsg_append(msg
, &ifa
, sizeof(ifa
), 0);
3140 nla_put(msg
, IFA_LOCAL
, alen
, &addr
->addr
);
3142 if (addr
->broadcast
)
3143 nla_put_u32(msg
, IFA_BROADCAST
, addr
->broadcast
);
3144 if (addr
->point_to_point
)
3145 nla_put_u32(msg
, IFA_ADDRESS
, addr
->point_to_point
);
3147 time_t now
= system_get_rtime();
3148 struct ifa_cacheinfo cinfo
= {0xffffffffU
, 0xffffffffU
, 0, 0};
3150 if (addr
->preferred_until
) {
3151 int64_t preferred
= addr
->preferred_until
- now
;
3154 else if (preferred
> UINT32_MAX
)
3155 preferred
= UINT32_MAX
;
3157 cinfo
.ifa_prefered
= preferred
;
3160 if (addr
->valid_until
) {
3161 int64_t valid
= addr
->valid_until
- now
;
3166 else if (valid
> UINT32_MAX
)
3169 cinfo
.ifa_valid
= valid
;
3172 nla_put(msg
, IFA_CACHEINFO
, sizeof(cinfo
), &cinfo
);
3174 if (cmd
== RTM_NEWADDR
&& (addr
->flags
& DEVADDR_OFFLINK
))
3175 nla_put_u32(msg
, IFA_FLAGS
, IFA_F_NOPREFIXROUTE
);
3178 return system_rtnl_call(msg
);
3181 int system_add_address(struct device
*dev
, struct device_addr
*addr
)
3183 return system_addr(dev
, addr
, RTM_NEWADDR
);
3186 int system_del_address(struct device
*dev
, struct device_addr
*addr
)
3188 return system_addr(dev
, addr
, RTM_DELADDR
);
3191 static int system_neigh(struct device
*dev
, struct device_neighbor
*neighbor
, int cmd
)
3193 int alen
= ((neighbor
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
3194 unsigned int flags
= 0;
3195 struct ndmsg ndm
= {
3196 .ndm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
3197 .ndm_ifindex
= dev
->ifindex
,
3198 .ndm_state
= NUD_PERMANENT
,
3199 .ndm_flags
= (neighbor
->proxy
? NTF_PROXY
: 0) | (neighbor
->router
? NTF_ROUTER
: 0),
3203 if (cmd
== RTM_NEWNEIGH
)
3204 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
3206 msg
= nlmsg_alloc_simple(cmd
, flags
);
3211 nlmsg_append(msg
, &ndm
, sizeof(ndm
), 0);
3213 nla_put(msg
, NDA_DST
, alen
, &neighbor
->addr
);
3214 if (neighbor
->flags
& DEVNEIGH_MAC
)
3215 nla_put(msg
, NDA_LLADDR
, sizeof(neighbor
->macaddr
), &neighbor
->macaddr
);
3218 return system_rtnl_call(msg
);
3221 int system_add_neighbor(struct device
*dev
, struct device_neighbor
*neighbor
)
3223 return system_neigh(dev
, neighbor
, RTM_NEWNEIGH
);
3226 int system_del_neighbor(struct device
*dev
, struct device_neighbor
*neighbor
)
3228 return system_neigh(dev
, neighbor
, RTM_DELNEIGH
);
3231 static int system_rt(struct device
*dev
, struct device_route
*route
, int cmd
)
3233 int alen
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
3235 unsigned int flags
= 0;
3238 have_gw
= !!route
->nexthop
.in
.s_addr
;
3240 have_gw
= route
->nexthop
.in6
.s6_addr32
[0] ||
3241 route
->nexthop
.in6
.s6_addr32
[1] ||
3242 route
->nexthop
.in6
.s6_addr32
[2] ||
3243 route
->nexthop
.in6
.s6_addr32
[3];
3245 unsigned int table
= (route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))
3246 ? route
->table
: RT_TABLE_MAIN
;
3248 struct rtmsg rtm
= {
3249 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
3250 .rtm_dst_len
= route
->mask
,
3251 .rtm_src_len
= route
->sourcemask
,
3252 .rtm_table
= (table
< 256) ? table
: RT_TABLE_UNSPEC
,
3253 .rtm_protocol
= (route
->flags
& DEVROUTE_PROTO
) ? route
->proto
: RTPROT_STATIC
,
3254 .rtm_scope
= RT_SCOPE_NOWHERE
,
3255 .rtm_type
= (cmd
== RTM_DELROUTE
) ? 0: RTN_UNICAST
,
3256 .rtm_flags
= (route
->flags
& DEVROUTE_ONLINK
) ? RTNH_F_ONLINK
: 0,
3260 if (cmd
== RTM_NEWROUTE
) {
3261 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
3263 if (!dev
) { /* Add null-route */
3264 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
3265 rtm
.rtm_type
= RTN_UNREACHABLE
;
3268 rtm
.rtm_scope
= (have_gw
) ? RT_SCOPE_UNIVERSE
: RT_SCOPE_LINK
;
3271 if (route
->flags
& DEVROUTE_TYPE
) {
3272 rtm
.rtm_type
= route
->type
;
3273 if (!(route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))) {
3274 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_BROADCAST
||
3275 rtm
.rtm_type
== RTN_NAT
|| rtm
.rtm_type
== RTN_ANYCAST
)
3276 rtm
.rtm_table
= RT_TABLE_LOCAL
;
3279 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_NAT
) {
3280 rtm
.rtm_scope
= RT_SCOPE_HOST
;
3281 } else if (rtm
.rtm_type
== RTN_BROADCAST
|| rtm
.rtm_type
== RTN_MULTICAST
||
3282 rtm
.rtm_type
== RTN_ANYCAST
) {
3283 rtm
.rtm_scope
= RT_SCOPE_LINK
;
3284 } else if (rtm
.rtm_type
== RTN_BLACKHOLE
|| rtm
.rtm_type
== RTN_UNREACHABLE
||
3285 rtm
.rtm_type
== RTN_PROHIBIT
|| rtm
.rtm_type
== RTN_FAILED_POLICY
||
3286 rtm
.rtm_type
== RTN_THROW
) {
3287 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
3292 if (route
->flags
& DEVROUTE_NODEV
)
3295 msg
= nlmsg_alloc_simple(cmd
, flags
);
3299 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
3302 nla_put(msg
, RTA_DST
, alen
, &route
->addr
);
3304 if (route
->sourcemask
) {
3305 if (rtm
.rtm_family
== AF_INET
)
3306 nla_put(msg
, RTA_PREFSRC
, alen
, &route
->source
);
3308 nla_put(msg
, RTA_SRC
, alen
, &route
->source
);
3311 if (route
->metric
> 0)
3312 nla_put_u32(msg
, RTA_PRIORITY
, route
->metric
);
3315 nla_put(msg
, RTA_GATEWAY
, alen
, &route
->nexthop
);
3318 nla_put_u32(msg
, RTA_OIF
, dev
->ifindex
);
3321 nla_put_u32(msg
, RTA_TABLE
, table
);
3323 if (route
->flags
& DEVROUTE_MTU
) {
3324 struct nlattr
*metrics
;
3326 if (!(metrics
= nla_nest_start(msg
, RTA_METRICS
)))
3327 goto nla_put_failure
;
3329 nla_put_u32(msg
, RTAX_MTU
, route
->mtu
);
3331 nla_nest_end(msg
, metrics
);
3334 return system_rtnl_call(msg
);
3341 int system_add_route(struct device
*dev
, struct device_route
*route
)
3343 return system_rt(dev
, route
, RTM_NEWROUTE
);
3346 int system_del_route(struct device
*dev
, struct device_route
*route
)
3348 return system_rt(dev
, route
, RTM_DELROUTE
);
3351 int system_flush_routes(void)
3353 const char *names
[] = { "ipv4", "ipv6" };
3357 for (i
= 0; i
< ARRAY_SIZE(names
); i
++) {
3358 snprintf(dev_buf
, sizeof(dev_buf
), "%s/sys/net/%s/route/flush", proc_path
, names
[i
]);
3359 fd
= open(dev_buf
, O_WRONLY
);
3363 if (write(fd
, "-1", 2)) {}
3369 bool system_resolve_rt_type(const char *type
, unsigned int *id
)
3371 return system_rtn_aton(type
, id
);
3374 bool system_resolve_rt_proto(const char *type
, unsigned int *id
)
3378 unsigned int n
, proto
= 256;
3379 n
= strtoul(type
, &e
, 0);
3380 if (!*e
&& e
!= type
)
3382 else if (!strcmp(type
, "unspec"))
3383 proto
= RTPROT_UNSPEC
;
3384 else if (!strcmp(type
, "kernel"))
3385 proto
= RTPROT_KERNEL
;
3386 else if (!strcmp(type
, "boot"))
3387 proto
= RTPROT_BOOT
;
3388 else if (!strcmp(type
, "static"))
3389 proto
= RTPROT_STATIC
;
3390 else if ((f
= fopen("/etc/iproute2/rt_protos", "r")) != NULL
) {
3391 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
) {
3392 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
3395 n
= strtoul(e
, NULL
, 10);
3396 e
= strtok(NULL
, " \t\n");
3398 if (e
&& !strcmp(e
, type
)) {
3413 bool system_resolve_rt_table(const char *name
, unsigned int *id
)
3417 unsigned int n
, table
= RT_TABLE_UNSPEC
;
3419 /* first try to parse table as number */
3420 if ((n
= strtoul(name
, &e
, 0)) > 0 && !*e
)
3423 /* handle well known aliases */
3424 else if (!strcmp(name
, "default"))
3425 table
= RT_TABLE_DEFAULT
;
3426 else if (!strcmp(name
, "main"))
3427 table
= RT_TABLE_MAIN
;
3428 else if (!strcmp(name
, "local"))
3429 table
= RT_TABLE_LOCAL
;
3431 /* try to look up name in /etc/iproute2/rt_tables */
3432 else if ((f
= fopen("/etc/iproute2/rt_tables", "r")) != NULL
)
3434 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
)
3436 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
3439 n
= strtoul(e
, NULL
, 10);
3440 e
= strtok(NULL
, " \t\n");
3442 if (e
&& !strcmp(e
, name
))
3452 if (table
== RT_TABLE_UNSPEC
)
3459 bool system_is_default_rt_table(unsigned int id
)
3461 return (id
== RT_TABLE_MAIN
);
3464 bool system_resolve_rpfilter(const char *filter
, unsigned int *id
)
3469 if (!strcmp(filter
, "strict"))
3471 else if (!strcmp(filter
, "loose"))
3474 n
= strtoul(filter
, &e
, 0);
3475 if (*e
|| e
== filter
|| n
> 2)
3483 static int system_iprule(struct iprule
*rule
, int cmd
)
3485 int alen
= ((rule
->flags
& IPRULE_FAMILY
) == IPRULE_INET4
) ? 4 : 16;
3488 struct rtmsg rtm
= {
3489 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
3490 .rtm_protocol
= RTPROT_STATIC
,
3491 .rtm_scope
= RT_SCOPE_UNIVERSE
,
3492 .rtm_table
= RT_TABLE_UNSPEC
,
3493 .rtm_type
= RTN_UNSPEC
,
3497 if (cmd
== RTM_NEWRULE
)
3498 rtm
.rtm_type
= RTN_UNICAST
;
3501 rtm
.rtm_flags
|= FIB_RULE_INVERT
;
3503 if (rule
->flags
& IPRULE_SRC
)
3504 rtm
.rtm_src_len
= rule
->src_mask
;
3506 if (rule
->flags
& IPRULE_DEST
)
3507 rtm
.rtm_dst_len
= rule
->dest_mask
;
3509 if (rule
->flags
& IPRULE_TOS
)
3510 rtm
.rtm_tos
= rule
->tos
;
3512 if (rule
->flags
& IPRULE_LOOKUP
) {
3513 if (rule
->lookup
< 256)
3514 rtm
.rtm_table
= rule
->lookup
;
3517 if (rule
->flags
& IPRULE_ACTION
)
3518 rtm
.rtm_type
= rule
->action
;
3519 else if (rule
->flags
& IPRULE_GOTO
)
3520 rtm
.rtm_type
= FR_ACT_GOTO
;
3521 else if (!(rule
->flags
& (IPRULE_LOOKUP
| IPRULE_ACTION
| IPRULE_GOTO
)))
3522 rtm
.rtm_type
= FR_ACT_NOP
;
3524 msg
= nlmsg_alloc_simple(cmd
, NLM_F_REQUEST
);
3529 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
3531 if (rule
->flags
& IPRULE_IN
)
3532 nla_put(msg
, FRA_IFNAME
, strlen(rule
->in_dev
) + 1, rule
->in_dev
);
3534 if (rule
->flags
& IPRULE_OUT
)
3535 nla_put(msg
, FRA_OIFNAME
, strlen(rule
->out_dev
) + 1, rule
->out_dev
);
3537 if (rule
->flags
& IPRULE_SRC
)
3538 nla_put(msg
, FRA_SRC
, alen
, &rule
->src_addr
);
3540 if (rule
->flags
& IPRULE_DEST
)
3541 nla_put(msg
, FRA_DST
, alen
, &rule
->dest_addr
);
3543 if (rule
->flags
& IPRULE_PRIORITY
)
3544 nla_put_u32(msg
, FRA_PRIORITY
, rule
->priority
);
3545 else if (cmd
== RTM_NEWRULE
)
3546 nla_put_u32(msg
, FRA_PRIORITY
, rule
->order
);
3548 if (rule
->flags
& IPRULE_FWMARK
)
3549 nla_put_u32(msg
, FRA_FWMARK
, rule
->fwmark
);
3551 if (rule
->flags
& IPRULE_FWMASK
)
3552 nla_put_u32(msg
, FRA_FWMASK
, rule
->fwmask
);
3554 if (rule
->flags
& IPRULE_LOOKUP
) {
3555 if (rule
->lookup
>= 256)
3556 nla_put_u32(msg
, FRA_TABLE
, rule
->lookup
);
3559 if (rule
->flags
& IPRULE_SUP_PREFIXLEN
)
3560 nla_put_u32(msg
, FRA_SUPPRESS_PREFIXLEN
, rule
->sup_prefixlen
);
3562 if (rule
->flags
& IPRULE_UIDRANGE
) {
3563 struct fib_rule_uid_range uidrange
= {
3564 .start
= rule
->uidrange_start
,
3565 .end
= rule
->uidrange_end
3568 nla_put(msg
, FRA_UID_RANGE
, sizeof(uidrange
), &uidrange
);
3571 if (rule
->flags
& IPRULE_GOTO
)
3572 nla_put_u32(msg
, FRA_GOTO
, rule
->gotoid
);
3574 return system_rtnl_call(msg
);
3577 int system_add_iprule(struct iprule
*rule
)
3579 return system_iprule(rule
, RTM_NEWRULE
);
3582 int system_del_iprule(struct iprule
*rule
)
3584 return system_iprule(rule
, RTM_DELRULE
);
3587 int system_flush_iprules(void)
3592 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET
);
3593 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET6
);
3595 memset(&rule
, 0, sizeof(rule
));
3598 rule
.flags
= IPRULE_INET4
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
3601 rule
.lookup
= RT_TABLE_LOCAL
;
3602 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3604 rule
.priority
= 32766;
3605 rule
.lookup
= RT_TABLE_MAIN
;
3606 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3608 rule
.priority
= 32767;
3609 rule
.lookup
= RT_TABLE_DEFAULT
;
3610 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3613 rule
.flags
= IPRULE_INET6
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
3616 rule
.lookup
= RT_TABLE_LOCAL
;
3617 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3619 rule
.priority
= 32766;
3620 rule
.lookup
= RT_TABLE_MAIN
;
3621 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3626 bool system_resolve_iprule_action(const char *action
, unsigned int *id
)
3628 return system_rtn_aton(action
, id
);
3631 time_t system_get_rtime(void)
3636 if (clock_gettime(CLOCK_MONOTONIC
, &ts
) == 0)
3639 if (gettimeofday(&tv
, NULL
) == 0)
3646 #define IP_DF 0x4000
3649 static int tunnel_ioctl(const char *name
, int cmd
, void *p
)
3653 memset(&ifr
, 0, sizeof(ifr
));
3654 strncpy(ifr
.ifr_name
, name
, sizeof(ifr
.ifr_name
) - 1);
3655 ifr
.ifr_ifru
.ifru_data
= p
;
3656 return ioctl(sock_ioctl
, cmd
, &ifr
);
3659 #ifdef IFLA_IPTUN_MAX
3660 static int system_add_ip6_tunnel(const char *name
, const unsigned int link
,
3661 struct blob_attr
**tb
)
3663 struct nl_msg
*nlm
= nlmsg_alloc_simple(RTM_NEWLINK
,
3664 NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3665 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
};
3666 struct blob_attr
*cur
;
3667 int ret
= 0, ttl
= 0;
3672 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3673 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3676 nla_put_u32(nlm
, IFLA_LINK
, link
);
3678 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3684 nla_put_string(nlm
, IFLA_INFO_KIND
, "ip6tnl");
3685 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3692 nla_put_u32(nlm
, IFLA_IPTUN_LINK
, link
);
3694 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3695 ttl
= blobmsg_get_u32(cur
);
3697 nla_put_u8(nlm
, IFLA_IPTUN_PROTO
, IPPROTO_IPIP
);
3698 nla_put_u8(nlm
, IFLA_IPTUN_TTL
, (ttl
) ? ttl
: 64);
3700 struct in6_addr in6buf
;
3701 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3702 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3706 nla_put(nlm
, IFLA_IPTUN_LOCAL
, sizeof(in6buf
), &in6buf
);
3709 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3710 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3714 nla_put(nlm
, IFLA_IPTUN_REMOTE
, sizeof(in6buf
), &in6buf
);
3717 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3718 struct blob_attr
*tb_data
[__IPIP6_DATA_ATTR_MAX
];
3719 uint32_t tun_flags
= IP6_TNL_F_IGN_ENCAP_LIMIT
;
3721 blobmsg_parse(ipip6_data_attr_list
.params
, __IPIP6_DATA_ATTR_MAX
, tb_data
,
3722 blobmsg_data(cur
), blobmsg_len(cur
));
3724 if ((cur
= tb_data
[IPIP6_DATA_ENCAPLIMIT
])) {
3725 char *str
= blobmsg_get_string(cur
);
3727 if (strcmp(str
, "ignore")) {
3729 unsigned encap_limit
= strtoul(str
, &e
, 0);
3731 if (e
== str
|| *e
|| encap_limit
> 255) {
3736 nla_put_u8(nlm
, IFLA_IPTUN_ENCAP_LIMIT
, encap_limit
);
3737 tun_flags
&= ~IP6_TNL_F_IGN_ENCAP_LIMIT
;
3741 #ifdef IFLA_IPTUN_FMR_MAX
3742 if ((cur
= tb_data
[IPIP6_DATA_FMRS
])) {
3743 struct blob_attr
*rcur
;
3744 unsigned rrem
, fmrcnt
= 0;
3745 struct nlattr
*fmrs
= nla_nest_start(nlm
, IFLA_IPTUN_FMRS
);
3752 blobmsg_for_each_attr(rcur
, cur
, rrem
) {
3753 struct blob_attr
*tb_fmr
[__FMR_DATA_ATTR_MAX
], *tb_cur
;
3754 struct in6_addr ip6prefix
;
3755 struct in_addr ip4prefix
;
3756 unsigned ip4len
, ip6len
, ealen
, offset
;
3758 blobmsg_parse(fmr_data_attr_list
.params
, __FMR_DATA_ATTR_MAX
, tb_fmr
,
3759 blobmsg_data(rcur
), blobmsg_len(rcur
));
3761 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX6
]) ||
3762 !parse_ip_and_netmask(AF_INET6
,
3763 blobmsg_data(tb_cur
), &ip6prefix
,
3769 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX4
]) ||
3770 !parse_ip_and_netmask(AF_INET
,
3771 blobmsg_data(tb_cur
), &ip4prefix
,
3777 if (!(tb_cur
= tb_fmr
[FMR_DATA_EALEN
])) {
3781 ealen
= blobmsg_get_u32(tb_cur
);
3783 if (!(tb_cur
= tb_fmr
[FMR_DATA_OFFSET
])) {
3787 offset
= blobmsg_get_u32(tb_cur
);
3789 struct nlattr
*rule
= nla_nest_start(nlm
, ++fmrcnt
);
3795 nla_put(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX
, sizeof(ip6prefix
), &ip6prefix
);
3796 nla_put(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX
, sizeof(ip4prefix
), &ip4prefix
);
3797 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX_LEN
, ip6len
);
3798 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX_LEN
, ip4len
);
3799 nla_put_u8(nlm
, IFLA_IPTUN_FMR_EA_LEN
, ealen
);
3800 nla_put_u8(nlm
, IFLA_IPTUN_FMR_OFFSET
, offset
);
3802 nla_nest_end(nlm
, rule
);
3805 nla_nest_end(nlm
, fmrs
);
3809 nla_put_u32(nlm
, IFLA_IPTUN_FLAGS
, tun_flags
);
3812 nla_nest_end(nlm
, infodata
);
3813 nla_nest_end(nlm
, linkinfo
);
3815 return system_rtnl_call(nlm
);
3823 #ifdef IFLA_IPTUN_MAX
3824 #define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
3825 static int system_add_gre_tunnel(const char *name
, const char *kind
,
3826 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3829 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3830 struct blob_attr
*cur
;
3831 uint32_t ikey
= 0, okey
= 0, flowinfo
= 0, flags6
= IP6_TNL_F_IGN_ENCAP_LIMIT
;
3832 uint16_t iflags
= 0, oflags
= 0;
3834 int ret
= 0, ttl
= 0;
3835 unsigned encap_limit
= 0;
3837 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3841 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3842 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3844 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3850 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
3851 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3858 nla_put_u32(nlm
, IFLA_GRE_LINK
, link
);
3860 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3861 ttl
= blobmsg_get_u32(cur
);
3863 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3864 char *str
= blobmsg_get_string(cur
);
3865 if (strcmp(str
, "inherit")) {
3868 if (!system_tos_aton(str
, &uval
)) {
3874 flowinfo
|= htonl(uval
<< 20) & IP6_FLOWINFO_TCLASS
;
3879 flags6
|= IP6_TNL_F_USE_ORIG_TCLASS
;
3885 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3886 struct blob_attr
*tb_data
[__GRE_DATA_ATTR_MAX
];
3888 blobmsg_parse(gre_data_attr_list
.params
, __GRE_DATA_ATTR_MAX
, tb_data
,
3889 blobmsg_data(cur
), blobmsg_len(cur
));
3891 if ((cur
= tb_data
[GRE_DATA_IKEY
])) {
3892 if ((ikey
= blobmsg_get_u32(cur
)))
3896 if ((cur
= tb_data
[GRE_DATA_OKEY
])) {
3897 if ((okey
= blobmsg_get_u32(cur
)))
3901 if ((cur
= tb_data
[GRE_DATA_ICSUM
])) {
3902 if (blobmsg_get_bool(cur
))
3906 if ((cur
= tb_data
[GRE_DATA_OCSUM
])) {
3907 if (blobmsg_get_bool(cur
))
3911 if ((cur
= tb_data
[GRE_DATA_ISEQNO
])) {
3912 if (blobmsg_get_bool(cur
))
3916 if ((cur
= tb_data
[GRE_DATA_OSEQNO
])) {
3917 if (blobmsg_get_bool(cur
))
3921 if ((cur
= tb_data
[GRE_DATA_ENCAPLIMIT
])) {
3922 char *str
= blobmsg_get_string(cur
);
3924 if (strcmp(str
, "ignore")) {
3927 encap_limit
= strtoul(str
, &e
, 0);
3929 if (e
== str
|| *e
|| encap_limit
> 255) {
3934 flags6
&= ~IP6_TNL_F_IGN_ENCAP_LIMIT
;
3940 struct in6_addr in6buf
;
3941 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3942 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3946 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(in6buf
), &in6buf
);
3949 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3950 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3954 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(in6buf
), &in6buf
);
3957 if (!(flags6
& IP6_TNL_F_IGN_ENCAP_LIMIT
))
3958 nla_put_u8(nlm
, IFLA_GRE_ENCAP_LIMIT
, encap_limit
);
3961 nla_put_u32(nlm
, IFLA_GRE_FLOWINFO
, flowinfo
);
3964 nla_put_u32(nlm
, IFLA_GRE_FLAGS
, flags6
);
3969 struct in_addr inbuf
;
3972 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3973 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3977 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(inbuf
), &inbuf
);
3980 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3981 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3985 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(inbuf
), &inbuf
);
3987 if (IN_MULTICAST(ntohl(inbuf
.s_addr
))) {
3989 okey
= inbuf
.s_addr
;
3994 ikey
= inbuf
.s_addr
;
4000 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
4001 set_df
= blobmsg_get_bool(cur
);
4004 /* ttl != 0 and nopmtudisc are incompatible */
4012 nla_put_u8(nlm
, IFLA_GRE_PMTUDISC
, set_df
? 1 : 0);
4014 nla_put_u8(nlm
, IFLA_GRE_TOS
, tos
);
4018 nla_put_u8(nlm
, IFLA_GRE_TTL
, ttl
);
4021 nla_put_u16(nlm
, IFLA_GRE_OFLAGS
, oflags
);
4024 nla_put_u16(nlm
, IFLA_GRE_IFLAGS
, iflags
);
4027 nla_put_u32(nlm
, IFLA_GRE_OKEY
, htonl(okey
));
4030 nla_put_u32(nlm
, IFLA_GRE_IKEY
, htonl(ikey
));
4032 nla_nest_end(nlm
, infodata
);
4033 nla_nest_end(nlm
, linkinfo
);
4035 return system_rtnl_call(nlm
);
4044 static int system_add_vti_tunnel(const char *name
, const char *kind
,
4045 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
4048 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
4049 struct blob_attr
*cur
;
4052 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
4056 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
4057 nla_put_string(nlm
, IFLA_IFNAME
, name
);
4059 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
4065 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
4066 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
4073 nla_put_u32(nlm
, IFLA_VTI_LINK
, link
);
4076 struct in6_addr in6buf
;
4077 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
4078 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
4082 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(in6buf
), &in6buf
);
4085 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
4086 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
4090 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(in6buf
), &in6buf
);
4094 struct in_addr inbuf
;
4096 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
4097 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
4101 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(inbuf
), &inbuf
);
4104 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
4105 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
4109 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(inbuf
), &inbuf
);
4114 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
4115 struct blob_attr
*tb_data
[__VTI_DATA_ATTR_MAX
];
4116 uint32_t ikey
= 0, okey
= 0;
4118 blobmsg_parse(vti_data_attr_list
.params
, __VTI_DATA_ATTR_MAX
, tb_data
,
4119 blobmsg_data(cur
), blobmsg_len(cur
));
4121 if ((cur
= tb_data
[VTI_DATA_IKEY
])) {
4122 if ((ikey
= blobmsg_get_u32(cur
)))
4123 nla_put_u32(nlm
, IFLA_VTI_IKEY
, htonl(ikey
));
4126 if ((cur
= tb_data
[VTI_DATA_OKEY
])) {
4127 if ((okey
= blobmsg_get_u32(cur
)))
4128 nla_put_u32(nlm
, IFLA_VTI_OKEY
, htonl(okey
));
4132 nla_nest_end(nlm
, infodata
);
4133 nla_nest_end(nlm
, linkinfo
);
4135 return system_rtnl_call(nlm
);
4143 #ifdef IFLA_XFRM_MAX
4144 static int system_add_xfrm_tunnel(const char *name
, const char *kind
,
4145 const unsigned int link
, struct blob_attr
**tb
)
4148 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
4149 struct blob_attr
*cur
;
4152 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
4156 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
4157 nla_put_string(nlm
, IFLA_IFNAME
, name
);
4159 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
4165 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
4166 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
4173 nla_put_u32(nlm
, IFLA_XFRM_LINK
, link
);
4175 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
4176 struct blob_attr
*tb_data
[__XFRM_DATA_ATTR_MAX
];
4179 blobmsg_parse(xfrm_data_attr_list
.params
, __XFRM_DATA_ATTR_MAX
, tb_data
,
4180 blobmsg_data(cur
), blobmsg_len(cur
));
4182 if ((cur
= tb_data
[XFRM_DATA_IF_ID
])) {
4183 if ((if_id
= blobmsg_get_u32(cur
)))
4184 nla_put_u32(nlm
, IFLA_XFRM_IF_ID
, if_id
);
4189 nla_nest_end(nlm
, infodata
);
4190 nla_nest_end(nlm
, linkinfo
);
4192 return system_rtnl_call(nlm
);
4200 #ifdef IFLA_VXLAN_MAX
4201 static void system_vxlan_map_bool_attr(struct nl_msg
*msg
, struct blob_attr
**tb_data
, int attrtype
, int vxlandatatype
, bool invert
) {
4202 struct blob_attr
*cur
;
4203 if ((cur
= tb_data
[vxlandatatype
])) {
4204 bool val
= blobmsg_get_bool(cur
);
4208 if ((attrtype
== IFLA_VXLAN_GBP
) && val
)
4209 nla_put_flag(msg
, attrtype
);
4211 nla_put_u8(msg
, attrtype
, val
);
4216 static int system_add_vxlan(const char *name
, const unsigned int link
, struct blob_attr
**tb
, bool v6
)
4218 struct blob_attr
*tb_data
[__VXLAN_DATA_ATTR_MAX
];
4220 struct nlattr
*linkinfo
, *data
;
4221 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
4222 struct blob_attr
*cur
;
4225 if ((cur
= tb
[TUNNEL_ATTR_DATA
]))
4226 blobmsg_parse(vxlan_data_attr_list
.params
, __VXLAN_DATA_ATTR_MAX
, tb_data
,
4227 blobmsg_data(cur
), blobmsg_len(cur
));
4231 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
4236 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
4238 nla_put_string(msg
, IFLA_IFNAME
, name
);
4240 if ((cur
= tb_data
[VXLAN_DATA_ATTR_MACADDR
])) {
4241 struct ether_addr
*ea
= ether_aton(blobmsg_get_string(cur
));
4247 nla_put(msg
, IFLA_ADDRESS
, ETH_ALEN
, ea
);
4250 if ((cur
= tb
[TUNNEL_ATTR_MTU
])) {
4251 uint32_t mtu
= blobmsg_get_u32(cur
);
4252 nla_put_u32(msg
, IFLA_MTU
, mtu
);
4255 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
))) {
4260 nla_put_string(msg
, IFLA_INFO_KIND
, "vxlan");
4262 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
))) {
4268 nla_put_u32(msg
, IFLA_VXLAN_LINK
, link
);
4270 if ((cur
= tb_data
[VXLAN_DATA_ATTR_ID
])) {
4271 uint32_t id
= blobmsg_get_u32(cur
);
4272 if (id
>= (1u << 24) - 1) {
4277 nla_put_u32(msg
, IFLA_VXLAN_ID
, id
);
4281 struct in6_addr in6buf
;
4282 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
4283 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
4287 nla_put(msg
, IFLA_VXLAN_LOCAL6
, sizeof(in6buf
), &in6buf
);
4290 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
4291 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
4295 nla_put(msg
, IFLA_VXLAN_GROUP6
, sizeof(in6buf
), &in6buf
);
4298 struct in_addr inbuf
;
4300 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
4301 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
4305 nla_put(msg
, IFLA_VXLAN_LOCAL
, sizeof(inbuf
), &inbuf
);
4308 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
4309 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
4313 nla_put(msg
, IFLA_VXLAN_GROUP
, sizeof(inbuf
), &inbuf
);
4317 uint32_t port
= 4789;
4318 if ((cur
= tb_data
[VXLAN_DATA_ATTR_PORT
])) {
4319 port
= blobmsg_get_u32(cur
);
4320 if (port
< 1 || port
> 65535) {
4325 nla_put_u16(msg
, IFLA_VXLAN_PORT
, htons(port
));
4327 if ((cur
= tb_data
[VXLAN_DATA_ATTR_SRCPORTMIN
])) {
4328 struct ifla_vxlan_port_range srcports
= {0,0};
4330 uint32_t low
= blobmsg_get_u32(cur
);
4331 if (low
< 1 || low
> 65535 - 1) {
4336 srcports
.low
= htons((uint16_t) low
);
4337 srcports
.high
= htons((uint16_t) (low
+1));
4339 if ((cur
= tb_data
[VXLAN_DATA_ATTR_SRCPORTMAX
])) {
4340 uint32_t high
= blobmsg_get_u32(cur
);
4341 if (high
< 1 || high
> 65535) {
4347 srcports
.high
= htons((uint16_t) high
);
4350 nla_put(msg
, IFLA_VXLAN_PORT_RANGE
, sizeof(srcports
), &srcports
);
4353 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_CSUM
, VXLAN_DATA_ATTR_TXCSUM
, false);
4354 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_ZERO_CSUM6_RX
, VXLAN_DATA_ATTR_RXCSUM
, true);
4355 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_ZERO_CSUM6_TX
, VXLAN_DATA_ATTR_TXCSUM
, true);
4356 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_LEARNING
, VXLAN_DATA_ATTR_LEARNING
, false);
4357 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_RSC
, VXLAN_DATA_ATTR_RSC
, false);
4358 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_PROXY
, VXLAN_DATA_ATTR_PROXY
, false);
4359 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_L2MISS
, VXLAN_DATA_ATTR_L2MISS
, false);
4360 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_L3MISS
, VXLAN_DATA_ATTR_L3MISS
, false);
4361 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_GBP
, VXLAN_DATA_ATTR_GBP
, false);
4363 if ((cur
= tb_data
[VXLAN_DATA_ATTR_AGEING
])) {
4364 uint32_t ageing
= blobmsg_get_u32(cur
);
4365 nla_put_u32(msg
, IFLA_VXLAN_AGEING
, ageing
);
4368 if ((cur
= tb_data
[VXLAN_DATA_ATTR_LIMIT
])) {
4369 uint32_t maxaddress
= blobmsg_get_u32(cur
);
4370 nla_put_u32(msg
, IFLA_VXLAN_LIMIT
, maxaddress
);
4373 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
4374 char *str
= blobmsg_get_string(cur
);
4377 if (strcmp(str
, "inherit")) {
4378 if (!system_tos_aton(str
, &tos
)) {
4384 nla_put_u8(msg
, IFLA_VXLAN_TOS
, tos
);
4387 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
4388 uint32_t ttl
= blobmsg_get_u32(cur
);
4389 if (ttl
< 1 || ttl
> 255) {
4394 nla_put_u8(msg
, IFLA_VXLAN_TTL
, ttl
);
4397 nla_nest_end(msg
, data
);
4398 nla_nest_end(msg
, linkinfo
);
4400 ret
= system_rtnl_call(msg
);
4402 D(SYSTEM
, "Error adding vxlan '%s': %d", name
, ret
);
4412 static int system_add_sit_tunnel(const char *name
, const unsigned int link
, struct blob_attr
**tb
)
4414 struct blob_attr
*cur
;
4417 if (system_add_proto_tunnel(name
, IPPROTO_IPV6
, link
, tb
) < 0)
4421 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
4422 struct blob_attr
*tb_data
[__SIXRD_DATA_ATTR_MAX
];
4424 struct ip_tunnel_6rd p6
;
4426 blobmsg_parse(sixrd_data_attr_list
.params
, __SIXRD_DATA_ATTR_MAX
, tb_data
,
4427 blobmsg_data(cur
), blobmsg_len(cur
));
4429 memset(&p6
, 0, sizeof(p6
));
4431 if ((cur
= tb_data
[SIXRD_DATA_PREFIX
])) {
4432 if (!parse_ip_and_netmask(AF_INET6
, blobmsg_data(cur
),
4433 &p6
.prefix
, &mask
) || mask
> 128) {
4438 p6
.prefixlen
= mask
;
4441 if ((cur
= tb_data
[SIXRD_DATA_RELAY_PREFIX
])) {
4442 if (!parse_ip_and_netmask(AF_INET
, blobmsg_data(cur
),
4443 &p6
.relay_prefix
, &mask
) || mask
> 32) {
4448 p6
.relay_prefixlen
= mask
;
4451 if (tunnel_ioctl(name
, SIOCADD6RD
, &p6
) < 0) {
4461 system_link_del(name
);
4465 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
, const unsigned int link
, struct blob_attr
**tb
)
4467 struct blob_attr
*cur
;
4469 struct ip_tunnel_parm p
= {
4478 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
]) &&
4479 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.saddr
) < 1)
4482 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
]) &&
4483 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.daddr
) < 1)
4486 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
4487 set_df
= blobmsg_get_bool(cur
);
4489 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
4490 p
.iph
.ttl
= blobmsg_get_u32(cur
);
4492 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
4493 char *str
= blobmsg_get_string(cur
);
4494 if (strcmp(str
, "inherit")) {
4497 if (!system_tos_aton(str
, &uval
))
4505 p
.iph
.frag_off
= set_df
? htons(IP_DF
) : 0;
4506 /* ttl !=0 and nopmtudisc are incompatible */
4507 if (p
.iph
.ttl
&& p
.iph
.frag_off
== 0)
4510 strncpy(p
.name
, name
, sizeof(p
.name
) - 1);
4512 switch (p
.iph
.protocol
) {
4514 return tunnel_ioctl("tunl0", SIOCADDTUNNEL
, &p
);
4516 return tunnel_ioctl("sit0", SIOCADDTUNNEL
, &p
);
4523 int system_del_ip_tunnel(const struct device
*dev
)
4525 return system_link_del(dev
->ifname
);
4528 int system_update_ipv6_mtu(struct device
*dev
, int mtu
)
4534 fd
= open(dev_sysctl_path("ipv6/conf", dev
->ifname
, "mtu"), O_RDWR
);
4539 ssize_t len
= read(fd
, buf
, sizeof(buf
) - 1);
4546 if (write(fd
, buf
, snprintf(buf
, sizeof(buf
), "%i", mtu
)) > 0)
4555 int system_add_ip_tunnel(const struct device
*dev
, struct blob_attr
*attr
)
4557 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
4558 struct blob_attr
*cur
;
4561 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
4562 blob_data(attr
), blob_len(attr
));
4564 system_link_del(dev
->ifname
);
4566 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
4568 str
= blobmsg_data(cur
);
4570 unsigned int ttl
= 0;
4571 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
4572 ttl
= blobmsg_get_u32(cur
);
4577 unsigned int link
= 0;
4578 if ((cur
= tb
[TUNNEL_ATTR_LINK
])) {
4579 struct interface
*iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
4583 if (iface
->l3_dev
.dev
)
4584 link
= iface
->l3_dev
.dev
->ifindex
;
4587 if (!strcmp(str
, "sit"))
4588 return system_add_sit_tunnel(dev
->ifname
, link
, tb
);
4589 #ifdef IFLA_IPTUN_MAX
4590 else if (!strcmp(str
, "ipip6")) {
4591 return system_add_ip6_tunnel(dev
->ifname
, link
, tb
);
4592 } else if (!strcmp(str
, "greip")) {
4593 return system_add_gre_tunnel(dev
->ifname
, "gre", link
, tb
, false);
4594 } else if (!strcmp(str
, "gretapip")) {
4595 return system_add_gre_tunnel(dev
->ifname
, "gretap", link
, tb
, false);
4596 } else if (!strcmp(str
, "greip6")) {
4597 return system_add_gre_tunnel(dev
->ifname
, "ip6gre", link
, tb
, true);
4598 } else if (!strcmp(str
, "gretapip6")) {
4599 return system_add_gre_tunnel(dev
->ifname
, "ip6gretap", link
, tb
, true);
4601 } else if (!strcmp(str
, "vtiip")) {
4602 return system_add_vti_tunnel(dev
->ifname
, "vti", link
, tb
, false);
4603 } else if (!strcmp(str
, "vtiip6")) {
4604 return system_add_vti_tunnel(dev
->ifname
, "vti6", link
, tb
, true);
4606 #ifdef IFLA_XFRM_MAX
4607 } else if (!strcmp(str
, "xfrm")) {
4608 return system_add_xfrm_tunnel(dev
->ifname
, "xfrm", link
, tb
);
4610 #ifdef IFLA_VXLAN_MAX
4611 } else if(!strcmp(str
, "vxlan")) {
4612 return system_add_vxlan(dev
->ifname
, link
, tb
, false);
4613 } else if(!strcmp(str
, "vxlan6")) {
4614 return system_add_vxlan(dev
->ifname
, link
, tb
, true);
4617 } else if (!strcmp(str
, "ipip")) {
4618 return system_add_proto_tunnel(dev
->ifname
, IPPROTO_IPIP
, link
, tb
);