2 * netifd - network interface daemon
3 * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
4 * Copyright (C) 2013 Jo-Philipp Wich <jow@openwrt.org>
5 * Copyright (C) 2013 Steven Barth <steven@midlink.org>
6 * Copyright (C) 2014 Gioacchino Mazzurco <gio@eigenlab.org>
7 * Copyright (C) 2017 Matthias Schiffer <mschiffer@universe-factory.net>
8 * Copyright (C) 2018 Hans Dedecker <dedeckeh@gmail.com>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2
12 * as published by the Free Software Foundation
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
21 #include <sys/socket.h>
22 #include <sys/ioctl.h>
24 #include <sys/syscall.h>
27 #include <net/if_arp.h>
30 #include <arpa/inet.h>
31 #include <netinet/in.h>
32 #include <netinet/ether.h>
34 #include <linux/rtnetlink.h>
35 #include <linux/neighbour.h>
36 #include <linux/sockios.h>
38 #include <linux/if_addr.h>
39 #include <linux/if_link.h>
40 #include <linux/if_vlan.h>
41 #include <linux/if_bridge.h>
42 #include <linux/if_tunnel.h>
43 #include <linux/ip6_tunnel.h>
44 #include <linux/ethtool.h>
45 #include <linux/fib_rules.h>
46 #include <linux/veth.h>
47 #include <linux/version.h>
51 #include "ethtool-modes.h"
53 #ifndef RTN_FAILED_POLICY
54 #define RTN_FAILED_POLICY 12
57 #ifndef IFA_F_NOPREFIXROUTE
58 #define IFA_F_NOPREFIXROUTE 0x200
62 #define IFA_FLAGS (IFA_MULTICAST + 1)
71 #include <netlink/msg.h>
72 #include <netlink/attr.h>
73 #include <netlink/socket.h>
74 #include <libubox/uloop.h>
82 struct uloop_fd uloop
;
87 static int sock_ioctl
= -1;
88 static struct nl_sock
*sock_rtnl
= NULL
;
90 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
);
91 static void handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
);
92 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
,
93 const unsigned int link
, struct blob_attr
**tb
);
95 static char dev_buf
[256];
96 static const char *proc_path
= "/proc";
97 static const char *sysfs_path
= "/sys";
104 static const struct netdev_type netdev_types
[] = {
105 {ARPHRD_NETROM
, "netrom"},
106 {ARPHRD_ETHER
, "ethernet"},
107 {ARPHRD_EETHER
, "eethernet"},
108 {ARPHRD_AX25
, "ax25"},
109 {ARPHRD_PRONET
, "pronet"},
110 {ARPHRD_CHAOS
, "chaos"},
111 {ARPHRD_IEEE802
, "ieee802"},
112 {ARPHRD_ARCNET
, "arcnet"},
113 {ARPHRD_APPLETLK
, "appletlk"},
114 {ARPHRD_DLCI
, "dlci"},
116 {ARPHRD_METRICOM
, "metricom"},
117 {ARPHRD_IEEE1394
, "ieee1394"},
118 {ARPHRD_EUI64
, "eui64"},
119 {ARPHRD_INFINIBAND
, "infiniband"},
120 {ARPHRD_SLIP
, "slip"},
121 {ARPHRD_CSLIP
, "cslip"},
122 {ARPHRD_SLIP6
, "slip6"},
123 {ARPHRD_CSLIP6
, "cslip6"},
124 {ARPHRD_RSRVD
, "rsrvd"},
125 {ARPHRD_ADAPT
, "adapt"},
126 {ARPHRD_ROSE
, "rose"},
128 {ARPHRD_HWX25
, "hwx25"},
130 {ARPHRD_CISCO
, "cisco"},
131 {ARPHRD_LAPB
, "lapb"},
132 {ARPHRD_DDCMP
, "ddcmp"},
133 {ARPHRD_RAWHDLC
, "rawhdlc"},
134 {ARPHRD_TUNNEL
, "tunnel"},
135 {ARPHRD_TUNNEL6
, "tunnel6"},
136 {ARPHRD_FRAD
, "frad"},
137 {ARPHRD_SKIP
, "skip"},
138 {ARPHRD_LOOPBACK
, "loopback"},
139 {ARPHRD_LOCALTLK
, "localtlk"},
140 {ARPHRD_FDDI
, "fddi"},
143 {ARPHRD_IPDDP
, "ipddp"},
144 {ARPHRD_IPGRE
, "ipgre"},
145 {ARPHRD_PIMREG
,"pimreg"},
146 {ARPHRD_HIPPI
, "hippi"},
148 {ARPHRD_ECONET
, "econet"},
149 {ARPHRD_IRDA
, "irda"},
150 {ARPHRD_FCPP
, "fcpp"},
151 {ARPHRD_FCAL
, "fcal"},
152 {ARPHRD_FCPL
, "fcpl"},
153 {ARPHRD_FCFABRIC
, "fcfabric"},
154 {ARPHRD_IEEE80211
, "ieee80211"},
155 {ARPHRD_IEEE80211_PRISM
, "ie80211-prism"},
156 {ARPHRD_IEEE80211_RADIOTAP
, "ieee80211-radiotap"},
158 {ARPHRD_PHONET
, "phonet"},
160 #ifdef ARPHRD_PHONET_PIPE
161 {ARPHRD_PHONET_PIPE
, "phonet-pipe"},
163 {ARPHRD_IEEE802154
, "ieee802154"},
164 {ARPHRD_VOID
, "void"},
165 {ARPHRD_NONE
, "none"}
169 handler_nl_event(struct uloop_fd
*u
, unsigned int events
)
171 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
173 socklen_t errlen
= sizeof(err
);
176 nl_recvmsgs_default(ev
->sock
);
180 if (getsockopt(u
->fd
, SOL_SOCKET
, SO_ERROR
, (void *)&err
, &errlen
))
185 /* Increase rx buffer size on netlink socket */
187 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
190 /* Request full dump since some info got dropped */
191 struct rtgenmsg msg
= { .rtgen_family
= AF_UNSPEC
};
192 nl_send_simple(ev
->sock
, RTM_GETLINK
, NLM_F_DUMP
, &msg
, sizeof(msg
));
202 uloop_fd_delete(&ev
->uloop
);
206 static struct nl_sock
*
207 create_socket(int protocol
, int groups
)
209 struct nl_sock
*sock
;
211 sock
= nl_socket_alloc();
216 nl_join_groups(sock
, groups
);
218 if (nl_connect(sock
, protocol
)) {
219 nl_socket_free(sock
);
227 create_raw_event_socket(struct event_socket
*ev
, int protocol
, int groups
,
228 uloop_fd_handler cb
, int flags
)
230 ev
->sock
= create_socket(protocol
, groups
);
234 ev
->uloop
.fd
= nl_socket_get_fd(ev
->sock
);
236 if (uloop_fd_add(&ev
->uloop
, ULOOP_READ
|flags
))
243 create_event_socket(struct event_socket
*ev
, int protocol
,
244 int (*cb
)(struct nl_msg
*msg
, void *arg
))
246 if (!create_raw_event_socket(ev
, protocol
, 0, handler_nl_event
, ULOOP_ERROR_CB
))
249 /* Install the valid custom callback handler */
250 nl_socket_modify_cb(ev
->sock
, NL_CB_VALID
, NL_CB_CUSTOM
, cb
, NULL
);
252 /* Disable sequence number checking on event sockets */
253 nl_socket_disable_seq_check(ev
->sock
);
255 /* Increase rx buffer size to 65K on event sockets */
257 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
264 create_hotplug_event_socket(struct event_socket
*ev
, int protocol
,
265 void (*cb
)(struct uloop_fd
*u
, unsigned int events
))
267 if (!create_raw_event_socket(ev
, protocol
, 1, cb
, ULOOP_ERROR_CB
))
270 /* Increase rx buffer size to 65K on event sockets */
272 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
279 system_rtn_aton(const char *src
, unsigned int *dst
)
284 if (!strcmp(src
, "local"))
286 else if (!strcmp(src
, "nat"))
288 else if (!strcmp(src
, "broadcast"))
290 else if (!strcmp(src
, "anycast"))
292 else if (!strcmp(src
, "multicast"))
294 else if (!strcmp(src
, "prohibit"))
296 else if (!strcmp(src
, "unreachable"))
298 else if (!strcmp(src
, "blackhole"))
300 else if (!strcmp(src
, "xresolve"))
302 else if (!strcmp(src
, "unicast"))
304 else if (!strcmp(src
, "throw"))
306 else if (!strcmp(src
, "failed_policy"))
307 n
= RTN_FAILED_POLICY
;
309 n
= strtoul(src
, &e
, 0);
310 if (!e
|| *e
|| e
== src
|| n
> 255)
319 system_tos_aton(const char *src
, unsigned *dst
)
323 *dst
= strtoul(src
, &e
, 16);
324 if (e
== src
|| *e
|| *dst
> 255)
330 int system_init(void)
332 static struct event_socket rtnl_event
;
333 static struct event_socket hotplug_event
;
335 sock_ioctl
= socket(AF_LOCAL
, SOCK_DGRAM
, 0);
336 system_fd_set_cloexec(sock_ioctl
);
338 /* Prepare socket for routing / address control */
339 sock_rtnl
= create_socket(NETLINK_ROUTE
, 0);
343 if (!create_event_socket(&rtnl_event
, NETLINK_ROUTE
, cb_rtnl_event
))
346 if (!create_hotplug_event_socket(&hotplug_event
, NETLINK_KOBJECT_UEVENT
,
347 handle_hotplug_event
))
350 /* Receive network link events form kernel */
351 nl_socket_add_membership(rtnl_event
.sock
, RTNLGRP_LINK
);
356 static void write_file(const char *path
, const char *val
)
360 fd
= open(path
, O_WRONLY
);
364 if (write(fd
, val
, strlen(val
))) {}
368 static int read_file(const char *path
, char *buf
, const size_t buf_sz
)
370 int fd
= -1, ret
= -1;
372 fd
= open(path
, O_RDONLY
);
376 ssize_t len
= read(fd
, buf
, buf_sz
- 1);
391 dev_sysctl_path(const char *prefix
, const char *ifname
, const char *file
)
393 snprintf(dev_buf
, sizeof(dev_buf
), "%s/sys/net/%s/%s/%s", proc_path
, prefix
, ifname
, file
);
399 dev_sysfs_path(const char *ifname
, const char *file
)
401 snprintf(dev_buf
, sizeof(dev_buf
), "%s/class/net/%s/%s", sysfs_path
, ifname
, file
);
407 system_set_dev_sysctl(const char *prefix
, const char *file
, const char *ifname
,
410 write_file(dev_sysctl_path(prefix
, ifname
, file
), val
);
414 system_get_dev_sysctl(const char *prefix
, const char *file
, const char *ifname
,
415 char *buf
, size_t buf_sz
)
417 return read_file(dev_sysctl_path(prefix
, ifname
, file
), buf
, buf_sz
);
421 system_set_dev_sysfs(const char *file
, const char *ifname
, const char *val
)
426 write_file(dev_sysfs_path(ifname
, file
), val
);
430 system_set_dev_sysfs_int(const char *file
, const char *ifname
, int val
)
434 snprintf(buf
, sizeof(buf
), "%d", val
);
435 system_set_dev_sysfs(file
, ifname
, buf
);
439 system_get_dev_sysfs(const char *file
, const char *ifname
, char *buf
, size_t buf_sz
)
441 return read_file(dev_sysfs_path(ifname
, file
), buf
, buf_sz
);
444 static void system_set_disable_ipv6(struct device
*dev
, const char *val
)
446 system_set_dev_sysctl("ipv6/conf", "disable_ipv6", dev
->ifname
, val
);
449 static void system_set_ip6segmentrouting(struct device
*dev
, const char *val
)
451 system_set_dev_sysctl("ipv6/conf", "seg6_enabled", dev
->ifname
, val
);
454 static void system_set_rpfilter(struct device
*dev
, const char *val
)
456 system_set_dev_sysctl("ipv4/conf", "rp_filter", dev
->ifname
, val
);
459 static void system_set_acceptlocal(struct device
*dev
, const char *val
)
461 system_set_dev_sysctl("ipv4/conf", "accept_local", dev
->ifname
, val
);
464 static void system_set_igmpversion(struct device
*dev
, const char *val
)
466 system_set_dev_sysctl("ipv4/conf", "force_igmp_version", dev
->ifname
, val
);
469 static void system_set_mldversion(struct device
*dev
, const char *val
)
471 system_set_dev_sysctl("ipv6/conf", "force_mld_version", dev
->ifname
, val
);
474 static void system_set_neigh4reachabletime(struct device
*dev
, const char *val
)
476 system_set_dev_sysctl("ipv4/neigh", "base_reachable_time_ms", dev
->ifname
, val
);
479 static void system_set_neigh6reachabletime(struct device
*dev
, const char *val
)
481 system_set_dev_sysctl("ipv6/neigh", "base_reachable_time_ms", dev
->ifname
, val
);
484 static void system_set_neigh4gcstaletime(struct device
*dev
, const char *val
)
486 system_set_dev_sysctl("ipv4/neigh", "gc_stale_time", dev
->ifname
, val
);
489 static void system_set_neigh6gcstaletime(struct device
*dev
, const char *val
)
491 system_set_dev_sysctl("ipv6/neigh", "gc_stale_time", dev
->ifname
, val
);
494 static void system_set_neigh4locktime(struct device
*dev
, const char *val
)
496 system_set_dev_sysctl("ipv4/neigh", "locktime", dev
->ifname
, val
);
499 static void system_set_dadtransmits(struct device
*dev
, const char *val
)
501 system_set_dev_sysctl("ipv6/conf", "dad_transmits", dev
->ifname
, val
);
504 static void system_set_sendredirects(struct device
*dev
, const char *val
)
506 system_set_dev_sysctl("ipv4/conf", "send_redirects", dev
->ifname
, val
);
509 static void system_set_drop_v4_unicast_in_l2_multicast(struct device
*dev
, const char *val
)
511 system_set_dev_sysctl("ipv4/conf", "drop_unicast_in_l2_multicast", dev
->ifname
, val
);
514 static void system_set_drop_v6_unicast_in_l2_multicast(struct device
*dev
, const char *val
)
516 system_set_dev_sysctl("ipv6/conf", "drop_unicast_in_l2_multicast", dev
->ifname
, val
);
519 static void system_set_drop_gratuitous_arp(struct device
*dev
, const char *val
)
521 system_set_dev_sysctl("ipv4/conf", "drop_gratuitous_arp", dev
->ifname
, val
);
524 static void system_set_drop_unsolicited_na(struct device
*dev
, const char *val
)
526 system_set_dev_sysctl("ipv6/conf", "drop_unsolicited_na", dev
->ifname
, val
);
529 static void system_set_arp_accept(struct device
*dev
, const char *val
)
531 system_set_dev_sysctl("ipv4/conf", "arp_accept", dev
->ifname
, val
);
534 static void system_bridge_set_multicast_to_unicast(struct device
*dev
, const char *val
)
536 system_set_dev_sysfs("brport/multicast_to_unicast", dev
->ifname
, val
);
539 static void system_bridge_set_multicast_fast_leave(struct device
*dev
, const char *val
)
541 system_set_dev_sysfs("brport/multicast_fast_leave", dev
->ifname
, val
);
544 static void system_bridge_set_hairpin_mode(struct device
*dev
, const char *val
)
546 system_set_dev_sysfs("brport/hairpin_mode", dev
->ifname
, val
);
549 static void system_bridge_set_proxyarp_wifi(struct device
*dev
, const char *val
)
551 system_set_dev_sysfs("brport/proxyarp_wifi", dev
->ifname
, val
);
554 static void system_bridge_set_bpdu_filter(struct device
*dev
, const char *val
)
556 system_set_dev_sysfs("brport/bpdu_filter", dev
->ifname
, val
);
559 static void system_bridge_set_isolated(struct device
*dev
, const char *val
)
561 system_set_dev_sysfs("brport/isolated", dev
->ifname
, val
);
564 static void system_bridge_set_multicast_router(struct device
*dev
, const char *val
)
566 system_set_dev_sysfs("brport/multicast_router", dev
->ifname
, val
);
569 void system_bridge_set_stp_state(struct device
*dev
, bool val
)
571 const char *valstr
= val
? "1" : "0";
573 system_set_dev_sysfs("bridge/stp_state", dev
->ifname
, valstr
);
576 static void system_bridge_set_learning(struct device
*dev
, const char *val
)
578 system_set_dev_sysfs("brport/learning", dev
->ifname
, val
);
581 static void system_bridge_set_unicast_flood(struct device
*dev
, const char *val
)
583 system_set_dev_sysfs("brport/unicast_flood", dev
->ifname
, val
);
586 static int system_get_disable_ipv6(struct device
*dev
, char *buf
, const size_t buf_sz
)
588 return system_get_dev_sysctl("ipv6/conf", "disable_ipv6",
589 dev
->ifname
, buf
, buf_sz
);
592 static int system_get_ip6segmentrouting(struct device
*dev
, char *buf
, const size_t buf_sz
)
594 return system_get_dev_sysctl("ipv6/conf", "seg6_enabled",
595 dev
->ifname
, buf
, buf_sz
);
598 static int system_get_rpfilter(struct device
*dev
, char *buf
, const size_t buf_sz
)
600 return system_get_dev_sysctl("ipv4/conf", "rp_filter",
601 dev
->ifname
, buf
, buf_sz
);
604 static int system_get_acceptlocal(struct device
*dev
, char *buf
, const size_t buf_sz
)
606 return system_get_dev_sysctl("ipv4/conf", "accept_local",
607 dev
->ifname
, buf
, buf_sz
);
610 static int system_get_igmpversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
612 return system_get_dev_sysctl("ipv4/conf", "force_igmp_version",
613 dev
->ifname
, buf
, buf_sz
);
616 static int system_get_mldversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
618 return system_get_dev_sysctl("ipv6/conf", "force_mld_version",
619 dev
->ifname
, buf
, buf_sz
);
622 static int system_get_neigh4reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
624 return system_get_dev_sysctl("ipv4/neigh", "base_reachable_time_ms",
625 dev
->ifname
, buf
, buf_sz
);
628 static int system_get_neigh6reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
630 return system_get_dev_sysctl("ipv6/neigh", "base_reachable_time_ms",
631 dev
->ifname
, buf
, buf_sz
);
634 static int system_get_neigh4gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
636 return system_get_dev_sysctl("ipv4/neigh", "gc_stale_time",
637 dev
->ifname
, buf
, buf_sz
);
640 static int system_get_neigh6gcstaletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
642 return system_get_dev_sysctl("ipv6/neigh", "gc_stale_time",
643 dev
->ifname
, buf
, buf_sz
);
646 static int system_get_neigh4locktime(struct device
*dev
, char *buf
, const size_t buf_sz
)
648 return system_get_dev_sysctl("ipv4/neigh", "locktime",
649 dev
->ifname
, buf
, buf_sz
);
652 static int system_get_dadtransmits(struct device
*dev
, char *buf
, const size_t buf_sz
)
654 return system_get_dev_sysctl("ipv6/conf", "dad_transmits",
655 dev
->ifname
, buf
, buf_sz
);
658 static int system_get_sendredirects(struct device
*dev
, char *buf
, const size_t buf_sz
)
660 return system_get_dev_sysctl("ipv4/conf", "send_redirects",
661 dev
->ifname
, buf
, buf_sz
);
665 static int system_get_drop_v4_unicast_in_l2_multicast(struct device
*dev
, char *buf
, const size_t buf_sz
)
667 return system_get_dev_sysctl("ipv4/conf", "drop_unicast_in_l2_multicast",
668 dev
->ifname
, buf
, buf_sz
);
671 static int system_get_drop_v6_unicast_in_l2_multicast(struct device
*dev
, char *buf
, const size_t buf_sz
)
673 return system_get_dev_sysctl("ipv6/conf", "drop_unicast_in_l2_multicast",
674 dev
->ifname
, buf
, buf_sz
);
677 static int system_get_drop_gratuitous_arp(struct device
*dev
, char *buf
, const size_t buf_sz
)
679 return system_get_dev_sysctl("ipv4/conf", "drop_gratuitous_arp",
680 dev
->ifname
, buf
, buf_sz
);
683 static int system_get_drop_unsolicited_na(struct device
*dev
, char *buf
, const size_t buf_sz
)
685 return system_get_dev_sysctl("ipv6/conf", "drop_unsolicited_na",
686 dev
->ifname
, buf
, buf_sz
);
689 static int system_get_arp_accept(struct device
*dev
, char *buf
, const size_t buf_sz
)
691 return system_get_dev_sysctl("ipv4/conf", "arp_accept",
692 dev
->ifname
, buf
, buf_sz
);
696 #define IFF_LOWER_UP 0x10000
700 system_device_update_state(struct device
*dev
, unsigned int flags
, unsigned int ifindex
)
702 if (dev
->type
== &simple_device_type
) {
704 device_set_disabled(dev
, !(flags
& IFF_UP
));
706 device_set_present(dev
, ifindex
> 0);
708 device_set_link(dev
, flags
& IFF_LOWER_UP
? true : false);
711 /* Evaluate netlink messages */
712 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
)
714 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
715 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
716 struct nlattr
*nla
[__IFLA_MAX
];
719 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
722 nlmsg_parse(nh
, sizeof(struct ifinfomsg
), nla
, __IFLA_MAX
- 1, NULL
);
723 if (!nla
[IFLA_IFNAME
])
726 dev
= device_find(nla_data(nla
[IFLA_IFNAME
]));
730 system_device_update_state(dev
, ifi
->ifi_flags
, ifi
->ifi_index
);
735 handle_hotplug_msg(char *data
, int size
)
737 const char *subsystem
= NULL
, *interface
= NULL
, *interface_old
= NULL
;
738 char *cur
, *end
, *sep
;
742 if (!strncmp(data
, "add@", 4) || !strncmp(data
, "move@", 5))
744 else if (!strncmp(data
, "remove@", 7))
749 skip
= strlen(data
) + 1;
752 for (cur
= data
+ skip
; cur
< end
; cur
+= skip
) {
753 skip
= strlen(cur
) + 1;
755 sep
= strchr(cur
, '=');
760 if (!strcmp(cur
, "INTERFACE"))
762 else if (!strcmp(cur
, "SUBSYSTEM")) {
764 if (strcmp(subsystem
, "net") != 0)
766 } else if (!strcmp(cur
, "DEVPATH_OLD")) {
767 interface_old
= strrchr(sep
+ 1, '/');
773 if (!subsystem
|| !interface
)
777 device_hotplug_event(interface_old
, false);
779 device_hotplug_event(interface
, add
);
783 handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
)
785 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
786 struct sockaddr_nl nla
;
787 unsigned char *buf
= NULL
;
790 socklen_t errlen
= sizeof(err
);
793 while ((size
= nl_recv(ev
->sock
, &nla
, &buf
, NULL
)) > 0) {
795 handle_hotplug_msg((char *) buf
, size
);
802 if (getsockopt(u
->fd
, SOL_SOCKET
, SO_ERROR
, (void *)&err
, &errlen
))
807 /* Increase rx buffer size on netlink socket */
809 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
820 uloop_fd_delete(&ev
->uloop
);
824 static int system_rtnl_call(struct nl_msg
*msg
)
828 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
834 return nl_wait_for_ack(sock_rtnl
);
837 static struct nl_msg
*__system_ifinfo_msg(int af
, int index
, const char *ifname
, uint16_t type
, uint16_t flags
)
840 struct ifinfomsg iim
= {
845 msg
= nlmsg_alloc_simple(type
, flags
| NLM_F_REQUEST
);
849 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
851 nla_put_string(msg
, IFLA_IFNAME
, ifname
);
856 static struct nl_msg
*system_ifinfo_msg(const char *ifname
, uint16_t type
, uint16_t flags
)
858 return __system_ifinfo_msg(AF_UNSPEC
, 0, ifname
, type
, flags
);
861 static int system_link_del(const char *ifname
)
865 msg
= system_ifinfo_msg(ifname
, RTM_DELLINK
, 0);
869 return system_rtnl_call(msg
);
872 int system_bridge_delbr(struct device
*bridge
)
874 return system_link_del(bridge
->ifname
);
877 static int system_bridge_if(const char *bridge
, struct device
*dev
, int cmd
, void *data
)
881 memset(&ifr
, 0, sizeof(ifr
));
883 ifr
.ifr_ifindex
= dev
->ifindex
;
886 strncpy(ifr
.ifr_name
, bridge
, sizeof(ifr
.ifr_name
) - 1);
887 return ioctl(sock_ioctl
, cmd
, &ifr
);
890 static bool system_is_bridge(const char *name
)
894 return stat(dev_sysfs_path(name
, "bridge"), &st
) >= 0;
897 static char *system_get_bridge(const char *name
, char *buf
, int buflen
)
903 snprintf(buf
, buflen
, "%s/devices/virtual/net/*/brif/%s/bridge", sysfs_path
, name
);
904 if (glob(buf
, GLOB_NOSORT
, NULL
, &gl
) < 0)
908 len
= readlink(gl
.gl_pathv
[0], buf
, buflen
);
916 path
= strrchr(buf
, '/');
924 system_bridge_set_wireless(struct device
*bridge
, struct device
*dev
)
926 bool mcast_to_ucast
= dev
->wireless_ap
;
929 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
)
930 mcast_to_ucast
= dev
->settings
.multicast_to_unicast
;
931 else if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_TO_UNICAST
&&
932 !bridge
->settings
.multicast_to_unicast
)
933 mcast_to_ucast
= false;
935 hairpin
= mcast_to_ucast
|| dev
->wireless_proxyarp
;
936 if (dev
->wireless_isolate
)
939 system_bridge_set_multicast_to_unicast(dev
, mcast_to_ucast
? "1" : "0");
940 system_bridge_set_hairpin_mode(dev
, hairpin
? "1" : "0");
941 system_bridge_set_proxyarp_wifi(dev
, dev
->wireless_proxyarp
? "1" : "0");
944 int system_bridge_addif(struct device
*bridge
, struct device
*dev
)
952 for (tries
= 0; tries
< 3; tries
++) {
954 oldbr
= system_get_bridge(dev
->ifname
, dev_buf
, sizeof(dev_buf
));
955 if (oldbr
&& !strcmp(oldbr
, bridge
->ifname
))
958 ret
= system_bridge_if(bridge
->ifname
, dev
, SIOCBRADDIF
, NULL
);
962 D(SYSTEM
, "Failed to add device '%s' to bridge '%s' (tries=%d): %s\n",
963 dev
->ifname
, bridge
->ifname
, tries
, strerror(errno
));
967 system_bridge_set_wireless(bridge
, dev
);
969 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
) {
970 snprintf(buf
, sizeof(buf
), "%u", dev
->settings
.multicast_router
);
971 system_bridge_set_multicast_router(dev
, buf
);
974 if (dev
->settings
.flags
& DEV_OPT_MULTICAST_FAST_LEAVE
&&
975 dev
->settings
.multicast_fast_leave
)
976 system_bridge_set_multicast_fast_leave(dev
, "1");
978 if (dev
->settings
.flags
& DEV_OPT_LEARNING
&&
979 !dev
->settings
.learning
)
980 system_bridge_set_learning(dev
, "0");
982 if (dev
->settings
.flags
& DEV_OPT_UNICAST_FLOOD
&&
983 !dev
->settings
.unicast_flood
)
984 system_bridge_set_unicast_flood(dev
, "0");
986 if (dev
->settings
.flags
& DEV_OPT_ISOLATE
&&
987 dev
->settings
.isolate
)
988 system_bridge_set_isolated(dev
, "1");
990 if (dev
->bpdu_filter
)
991 system_bridge_set_bpdu_filter(dev
, dev
->bpdu_filter
? "1" : "0");
996 int system_bridge_delif(struct device
*bridge
, struct device
*dev
)
998 return system_bridge_if(bridge
->ifname
, dev
, SIOCBRDELIF
, NULL
);
1001 int system_bridge_vlan(const char *iface
, uint16_t vid
, int16_t vid_end
, bool add
, unsigned int vflags
)
1003 struct bridge_vlan_info vinfo
= { .vid
= vid
, };
1004 unsigned short flags
= 0;
1005 struct nlattr
*afspec
;
1010 index
= if_nametoindex(iface
);
1014 nlm
= __system_ifinfo_msg(PF_BRIDGE
, index
, NULL
, add
? RTM_SETLINK
: RTM_DELLINK
, 0);
1018 if (vflags
& BRVLAN_F_SELF
)
1019 flags
|= BRIDGE_FLAGS_SELF
;
1021 if (vflags
& BRVLAN_F_PVID
)
1022 vinfo
.flags
|= BRIDGE_VLAN_INFO_PVID
;
1024 if (vflags
& BRVLAN_F_UNTAGGED
)
1025 vinfo
.flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
1027 afspec
= nla_nest_start(nlm
, IFLA_AF_SPEC
);
1034 nla_put_u16(nlm
, IFLA_BRIDGE_FLAGS
, flags
);
1037 vinfo
.flags
|= BRIDGE_VLAN_INFO_RANGE_BEGIN
;
1039 nla_put(nlm
, IFLA_BRIDGE_VLAN_INFO
, sizeof(vinfo
), &vinfo
);
1041 if (vid_end
> vid
) {
1042 vinfo
.flags
&= ~BRIDGE_VLAN_INFO_RANGE_BEGIN
;
1043 vinfo
.flags
|= BRIDGE_VLAN_INFO_RANGE_END
;
1044 vinfo
.vid
= vid_end
;
1045 nla_put(nlm
, IFLA_BRIDGE_VLAN_INFO
, sizeof(vinfo
), &vinfo
);
1048 nla_nest_end(nlm
, afspec
);
1050 return system_rtnl_call(nlm
);
1057 int system_bonding_set_device(struct device
*dev
, struct bonding_config
*cfg
)
1059 const char *ifname
= dev
->ifname
;
1060 struct blob_attr
*cur
;
1061 char op
= cfg
? '+' : '-';
1065 snprintf(dev_buf
, sizeof(dev_buf
), "%s/class/net/bonding_masters", sysfs_path
);
1066 snprintf(buf
, sizeof(buf
), "%c%s", op
, ifname
);
1067 write_file(dev_buf
, buf
);
1072 system_set_dev_sysfs("bonding/mode", ifname
, bonding_policy_str
[cfg
->policy
]);
1074 system_set_dev_sysfs_int("bonding/all_ports_active", ifname
, cfg
->all_ports_active
);
1076 if (cfg
->policy
== BONDING_MODE_BALANCE_XOR
||
1077 cfg
->policy
== BONDING_MODE_BALANCE_TLB
||
1078 cfg
->policy
== BONDING_MODE_8023AD
)
1079 system_set_dev_sysfs("bonding/xmit_hash_policy", ifname
, cfg
->xmit_hash_policy
);
1081 if (cfg
->policy
== BONDING_MODE_8023AD
) {
1082 system_set_dev_sysfs("bonding/ad_actor_system", ifname
, cfg
->ad_actor_system
);
1083 system_set_dev_sysfs_int("bonding/ad_actor_sys_prio", ifname
, cfg
->ad_actor_sys_prio
);
1084 system_set_dev_sysfs("bonding/ad_select", ifname
, cfg
->ad_select
);
1085 system_set_dev_sysfs("bonding/lacp_rate", ifname
, cfg
->lacp_rate
);
1086 system_set_dev_sysfs_int("bonding/min_links", ifname
, cfg
->min_links
);
1089 if (cfg
->policy
== BONDING_MODE_BALANCE_RR
)
1090 system_set_dev_sysfs_int("bonding/packets_per_slave", ifname
, cfg
->packets_per_port
);
1092 if (cfg
->policy
== BONDING_MODE_BALANCE_TLB
||
1093 cfg
->policy
== BONDING_MODE_BALANCE_ALB
)
1094 system_set_dev_sysfs_int("bonding/lp_interval", ifname
, cfg
->lp_interval
);
1096 if (cfg
->policy
== BONDING_MODE_BALANCE_TLB
)
1097 system_set_dev_sysfs_int("bonding/tlb_dynamic_lb", ifname
, cfg
->dynamic_lb
);
1098 system_set_dev_sysfs_int("bonding/resend_igmp", ifname
, cfg
->resend_igmp
);
1099 system_set_dev_sysfs_int("bonding/num_grat_arp", ifname
, cfg
->num_peer_notif
);
1100 system_set_dev_sysfs("bonding/primary_reselect", ifname
, cfg
->primary_reselect
);
1101 system_set_dev_sysfs("bonding/fail_over_mac", ifname
, cfg
->failover_mac
);
1103 system_set_dev_sysfs_int((cfg
->monitor_arp
?
1104 "bonding/arp_interval" :
1105 "bonding/miimon"), ifname
, cfg
->monitor_interval
);
1107 blobmsg_for_each_attr(cur
, cfg
->arp_target
, rem
) {
1108 snprintf(buf
, sizeof(buf
), "+%s", blobmsg_get_string(cur
));
1109 system_set_dev_sysfs("bonding/arp_ip_target", ifname
, buf
);
1112 system_set_dev_sysfs_int("bonding/arp_all_targets", ifname
, cfg
->arp_all_targets
);
1113 if (cfg
->policy
< BONDING_MODE_8023AD
)
1114 system_set_dev_sysfs("bonding/arp_validate", ifname
, cfg
->arp_validate
);
1115 system_set_dev_sysfs_int("bonding/use_carrier", ifname
, cfg
->use_carrier
);
1116 if (!cfg
->monitor_arp
&& cfg
->monitor_interval
) {
1117 system_set_dev_sysfs_int("bonding/updelay", ifname
, cfg
->updelay
);
1118 system_set_dev_sysfs_int("bonding/downdelay", ifname
, cfg
->downdelay
);
1124 int system_bonding_set_port(struct device
*dev
, struct device
*port
, bool add
, bool primary
)
1126 const char *port_name
= port
->ifname
;
1127 const char op_ch
= add
? '+' : '-';
1128 char buf
[IFNAMSIZ
+ 1];
1130 snprintf(buf
, sizeof(buf
), "%c%s", op_ch
, port_name
);
1131 system_if_down(port
);
1132 system_set_dev_sysfs("bonding/slaves", dev
->ifname
, buf
);
1136 system_set_dev_sysfs("bonding/primary", dev
->ifname
,
1137 add
? port_name
: "");
1142 int system_if_resolve(struct device
*dev
)
1146 memset(&ifr
, 0, sizeof(ifr
));
1147 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1148 if (!ioctl(sock_ioctl
, SIOCGIFINDEX
, &ifr
))
1149 return ifr
.ifr_ifindex
;
1154 static int system_if_flags(const char *ifname
, unsigned add
, unsigned rem
)
1158 memset(&ifr
, 0, sizeof(ifr
));
1159 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
1160 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) < 0)
1163 ifr
.ifr_flags
|= add
;
1164 ifr
.ifr_flags
&= ~rem
;
1165 return ioctl(sock_ioctl
, SIOCSIFFLAGS
, &ifr
);
1177 static bool check_ifaddr(struct nlmsghdr
*hdr
, int ifindex
)
1179 struct ifaddrmsg
*ifa
= NLMSG_DATA(hdr
);
1181 return (long)ifa
->ifa_index
== ifindex
;
1184 static bool check_route(struct nlmsghdr
*hdr
, int ifindex
)
1186 struct rtmsg
*r
= NLMSG_DATA(hdr
);
1187 struct nlattr
*tb
[__RTA_MAX
];
1189 if (r
->rtm_protocol
== RTPROT_KERNEL
&&
1190 r
->rtm_family
== AF_INET6
)
1193 nlmsg_parse(hdr
, sizeof(struct rtmsg
), tb
, __RTA_MAX
- 1, NULL
);
1197 return *(int *)RTA_DATA(tb
[RTA_OIF
]) == ifindex
;
1200 static bool check_rule(struct nlmsghdr
*hdr
, int ifindex
)
1205 static int cb_clear_event(struct nl_msg
*msg
, void *arg
)
1207 struct clear_data
*clr
= arg
;
1208 struct nlmsghdr
*hdr
= nlmsg_hdr(msg
);
1209 bool (*cb
)(struct nlmsghdr
*, int ifindex
);
1215 if (hdr
->nlmsg_type
!= RTM_NEWADDR
)
1221 type
= RTM_DELROUTE
;
1222 if (hdr
->nlmsg_type
!= RTM_NEWROUTE
)
1229 if (hdr
->nlmsg_type
!= RTM_NEWRULE
)
1238 if (!cb(hdr
, clr
->dev
? clr
->dev
->ifindex
: 0))
1241 if (type
== RTM_DELRULE
)
1242 D(SYSTEM
, "Remove a rule\n");
1244 D(SYSTEM
, "Remove %s from device %s\n",
1245 type
== RTM_DELADDR
? "an address" : "a route",
1248 memcpy(nlmsg_hdr(clr
->msg
), hdr
, hdr
->nlmsg_len
);
1249 hdr
= nlmsg_hdr(clr
->msg
);
1250 hdr
->nlmsg_type
= type
;
1251 hdr
->nlmsg_flags
= NLM_F_REQUEST
;
1253 nl_socket_disable_auto_ack(sock_rtnl
);
1254 ret
= nl_send_auto_complete(sock_rtnl
, clr
->msg
);
1256 if (type
== RTM_DELRULE
)
1257 D(SYSTEM
, "Error deleting a rule: %d\n", ret
);
1259 D(SYSTEM
, "Error deleting %s from device '%s': %d\n",
1260 type
== RTM_DELADDR
? "an address" : "a route",
1261 clr
->dev
->ifname
, ret
);
1264 nl_socket_enable_auto_ack(sock_rtnl
);
1270 cb_finish_event(struct nl_msg
*msg
, void *arg
)
1278 error_handler(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1281 *pending
= err
->error
;
1286 system_if_clear_entries(struct device
*dev
, int type
, int af
)
1288 struct clear_data clr
;
1290 struct rtmsg rtm
= {
1292 .rtm_flags
= RTM_F_CLONED
,
1294 int flags
= NLM_F_DUMP
;
1303 clr
.size
= sizeof(struct rtgenmsg
);
1306 clr
.size
= sizeof(struct rtmsg
);
1312 cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1316 clr
.msg
= nlmsg_alloc_simple(type
, flags
);
1320 nlmsg_append(clr
.msg
, &rtm
, clr
.size
, 0);
1321 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_clear_event
, &clr
);
1322 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, cb_finish_event
, &pending
);
1323 nl_cb_err(cb
, NL_CB_CUSTOM
, error_handler
, &pending
);
1325 if (nl_send_auto_complete(sock_rtnl
, clr
.msg
) < 0)
1329 nl_recvmsgs(sock_rtnl
, cb
);
1332 nlmsg_free(clr
.msg
);
1338 * Clear bridge (membership) state and bring down device
1340 void system_if_clear_state(struct device
*dev
)
1342 static char buf
[256];
1344 device_set_ifindex(dev
, system_if_resolve(dev
));
1346 if (dev
->external
|| !dev
->ifindex
)
1349 system_if_flags(dev
->ifname
, 0, IFF_UP
);
1351 if (system_is_bridge(dev
->ifname
)) {
1352 D(SYSTEM
, "Delete existing bridge named '%s'\n", dev
->ifname
);
1353 system_bridge_delbr(dev
);
1357 bridge
= system_get_bridge(dev
->ifname
, buf
, sizeof(buf
));
1359 D(SYSTEM
, "Remove device '%s' from bridge '%s'\n", dev
->ifname
, bridge
);
1360 system_bridge_if(bridge
, dev
, SIOCBRDELIF
, NULL
);
1363 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET
);
1364 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET
);
1365 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET6
);
1366 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET6
);
1367 system_if_clear_entries(dev
, RTM_GETNEIGH
, AF_INET
);
1368 system_if_clear_entries(dev
, RTM_GETNEIGH
, AF_INET6
);
1369 system_set_disable_ipv6(dev
, "0");
1372 static inline unsigned long
1373 sec_to_jiffies(int val
)
1375 return (unsigned long) val
* 100;
1378 int system_bridge_addbr(struct device
*bridge
, struct bridge_config
*cfg
)
1380 struct nlattr
*linkinfo
, *data
;
1385 msg
= system_ifinfo_msg(bridge
->ifname
, RTM_NEWLINK
, NLM_F_CREATE
| NLM_F_EXCL
);
1389 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1390 goto nla_put_failure
;
1392 nla_put_string(msg
, IFLA_INFO_KIND
, "bridge");
1394 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1395 goto nla_put_failure
;
1397 nla_put_u32(msg
, IFLA_BR_STP_STATE
, cfg
->stp
);
1398 nla_put_u32(msg
, IFLA_BR_FORWARD_DELAY
, sec_to_jiffies(cfg
->forward_delay
));
1399 nla_put_u8(msg
, IFLA_BR_MCAST_SNOOPING
, !!cfg
->igmp_snoop
);
1400 nla_put_u8(msg
, IFLA_BR_MCAST_QUERIER
, !!cfg
->multicast_querier
);
1401 nla_put_u32(msg
, IFLA_BR_MCAST_HASH_MAX
, cfg
->hash_max
);
1403 if (bridge
->settings
.flags
& DEV_OPT_MULTICAST_ROUTER
)
1404 nla_put_u8(msg
, IFLA_BR_MCAST_ROUTER
, !!bridge
->settings
.multicast_router
);
1406 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
) {
1407 nla_put_u32(msg
, IFLA_BR_MCAST_STARTUP_QUERY_CNT
, cfg
->robustness
);
1408 nla_put_u32(msg
, IFLA_BR_MCAST_LAST_MEMBER_CNT
, cfg
->robustness
);
1411 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
)
1412 nla_put_u64(msg
, IFLA_BR_MCAST_QUERY_INTVL
, cfg
->query_interval
);
1414 if (cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
)
1415 nla_put_u64(msg
, IFLA_BR_MCAST_QUERY_RESPONSE_INTVL
, cfg
->query_response_interval
);
1417 if (cfg
->flags
& BRIDGE_OPT_LAST_MEMBER_INTERVAL
)
1418 nla_put_u64(msg
, IFLA_BR_MCAST_LAST_MEMBER_INTVL
, cfg
->last_member_interval
);
1420 if (cfg
->flags
& BRIDGE_OPT_ROBUSTNESS
||
1421 cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
||
1422 cfg
->flags
& BRIDGE_OPT_QUERY_RESPONSE_INTERVAL
) {
1423 val
= cfg
->robustness
* cfg
->query_interval
+
1424 cfg
->query_response_interval
;
1426 nla_put_u64(msg
, IFLA_BR_MCAST_MEMBERSHIP_INTVL
, val
);
1428 val
-= cfg
->query_response_interval
/ 2;
1430 nla_put_u64(msg
, IFLA_BR_MCAST_QUERIER_INTVL
, val
);
1433 if (cfg
->flags
& BRIDGE_OPT_QUERY_INTERVAL
) {
1434 val
= cfg
->query_interval
/ 4;
1436 nla_put_u64(msg
, IFLA_BR_MCAST_STARTUP_QUERY_INTVL
, val
);
1439 nla_put_u8(msg
, IFLA_BR_VLAN_FILTERING
, !!cfg
->vlan_filtering
);
1440 nla_put_u16(msg
, IFLA_BR_PRIORITY
, cfg
->priority
);
1441 nla_put_u32(msg
, IFLA_BR_HELLO_TIME
, sec_to_jiffies(cfg
->hello_time
));
1442 nla_put_u32(msg
, IFLA_BR_MAX_AGE
, sec_to_jiffies(cfg
->max_age
));
1444 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
)
1445 nla_put_u32(msg
, IFLA_BR_AGEING_TIME
, sec_to_jiffies(cfg
->ageing_time
));
1447 nla_nest_end(msg
, data
);
1448 nla_nest_end(msg
, linkinfo
);
1450 rv
= system_rtnl_call(msg
);
1452 D(SYSTEM
, "Error adding bridge '%s': %d\n", bridge
->ifname
, rv
);
1461 int system_macvlan_add(struct device
*macvlan
, struct device
*dev
, struct macvlan_config
*cfg
)
1464 struct nlattr
*linkinfo
, *data
;
1467 static const struct {
1469 enum macvlan_mode val
;
1471 { "private", MACVLAN_MODE_PRIVATE
},
1472 { "vepa", MACVLAN_MODE_VEPA
},
1473 { "bridge", MACVLAN_MODE_BRIDGE
},
1474 { "passthru", MACVLAN_MODE_PASSTHRU
},
1477 msg
= system_ifinfo_msg(macvlan
->ifname
, RTM_NEWLINK
, NLM_F_CREATE
| NLM_F_EXCL
);
1481 if (cfg
->flags
& MACVLAN_OPT_MACADDR
)
1482 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1483 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1485 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1486 goto nla_put_failure
;
1488 nla_put_string(msg
, IFLA_INFO_KIND
, "macvlan");
1490 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1491 goto nla_put_failure
;
1494 for (i
= 0; i
< ARRAY_SIZE(modes
); i
++) {
1495 if (strcmp(cfg
->mode
, modes
[i
].name
) != 0)
1498 nla_put_u32(msg
, IFLA_MACVLAN_MODE
, modes
[i
].val
);
1503 nla_nest_end(msg
, data
);
1504 nla_nest_end(msg
, linkinfo
);
1506 rv
= system_rtnl_call(msg
);
1508 D(SYSTEM
, "Error adding macvlan '%s' over '%s': %d\n", macvlan
->ifname
, dev
->ifname
, rv
);
1517 int system_link_netns_move(struct device
*dev
, int netns_fd
, const char *target_ifname
)
1525 index
= system_if_resolve(dev
);
1526 msg
= __system_ifinfo_msg(AF_UNSPEC
, index
, target_ifname
, RTM_NEWLINK
, 0);
1530 nla_put_u32(msg
, IFLA_NET_NS_FD
, netns_fd
);
1531 return system_rtnl_call(msg
);
1534 int system_macvlan_del(struct device
*macvlan
)
1536 return system_link_del(macvlan
->ifname
);
1539 int system_netns_open(const pid_t target_ns
)
1541 char pid_net_path
[PATH_MAX
];
1543 snprintf(pid_net_path
, sizeof(pid_net_path
), "/proc/%u/ns/net", target_ns
);
1545 return open(pid_net_path
, O_RDONLY
);
1548 int system_netns_set(int netns_fd
)
1550 return setns(netns_fd
, CLONE_NEWNET
);
1553 int system_veth_add(struct device
*veth
, struct veth_config
*cfg
)
1556 struct ifinfomsg empty_iim
= {0,};
1557 struct nlattr
*linkinfo
, *data
, *veth_info
;
1560 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1565 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1567 if (cfg
->flags
& VETH_OPT_MACADDR
)
1568 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
1569 nla_put_string(msg
, IFLA_IFNAME
, veth
->ifname
);
1571 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1572 goto nla_put_failure
;
1574 nla_put_string(msg
, IFLA_INFO_KIND
, "veth");
1576 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1577 goto nla_put_failure
;
1579 if (!(veth_info
= nla_nest_start(msg
, VETH_INFO_PEER
)))
1580 goto nla_put_failure
;
1582 nlmsg_append(msg
, &empty_iim
, sizeof(empty_iim
), 0);
1584 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1585 nla_put_string(msg
, IFLA_IFNAME
, cfg
->peer_name
);
1586 if (cfg
->flags
& VETH_OPT_PEER_MACADDR
)
1587 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->peer_macaddr
), cfg
->peer_macaddr
);
1589 nla_nest_end(msg
, veth_info
);
1590 nla_nest_end(msg
, data
);
1591 nla_nest_end(msg
, linkinfo
);
1593 rv
= system_rtnl_call(msg
);
1595 if (cfg
->flags
& VETH_OPT_PEER_NAME
)
1596 D(SYSTEM
, "Error adding veth '%s' with peer '%s': %d\n", veth
->ifname
, cfg
->peer_name
, rv
);
1598 D(SYSTEM
, "Error adding veth '%s': %d\n", veth
->ifname
, rv
);
1608 int system_veth_del(struct device
*veth
)
1610 return system_link_del(veth
->ifname
);
1613 static int system_vlan(struct device
*dev
, int id
)
1615 struct vlan_ioctl_args ifr
= {
1616 .cmd
= SET_VLAN_NAME_TYPE_CMD
,
1617 .u
.name_type
= VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
,
1620 if (ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
) < 0)
1624 ifr
.cmd
= DEL_VLAN_CMD
;
1627 ifr
.cmd
= ADD_VLAN_CMD
;
1630 strncpy(ifr
.device1
, dev
->ifname
, sizeof(ifr
.device1
));
1631 return ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
1634 int system_vlan_add(struct device
*dev
, int id
)
1636 return system_vlan(dev
, id
);
1639 int system_vlan_del(struct device
*dev
)
1641 return system_vlan(dev
, -1);
1644 int system_vlandev_add(struct device
*vlandev
, struct device
*dev
, struct vlandev_config
*cfg
)
1647 struct nlattr
*linkinfo
, *data
, *qos
;
1648 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
};
1649 struct vlan_qos_mapping
*elem
;
1650 struct ifla_vlan_qos_mapping nl_qos_map
;
1653 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
1658 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
1659 nla_put_string(msg
, IFLA_IFNAME
, vlandev
->ifname
);
1660 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
1662 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
1663 goto nla_put_failure
;
1665 nla_put_string(msg
, IFLA_INFO_KIND
, "vlan");
1667 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
1668 goto nla_put_failure
;
1670 nla_put_u16(msg
, IFLA_VLAN_ID
, cfg
->vid
);
1672 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
1673 nla_put_u16(msg
, IFLA_VLAN_PROTOCOL
, htons(cfg
->proto
));
1675 if(cfg
->proto
== VLAN_PROTO_8021AD
)
1676 netifd_log_message(L_WARNING
, "%s Your kernel is older than linux 3.10.0, 802.1ad is not supported defaulting to 802.1q", vlandev
->type
->name
);
1679 if (!(qos
= nla_nest_start(msg
, IFLA_VLAN_INGRESS_QOS
)))
1680 goto nla_put_failure
;
1682 vlist_simple_for_each_element(&cfg
->ingress_qos_mapping_list
, elem
, node
) {
1683 nl_qos_map
.from
= elem
->from
;
1684 nl_qos_map
.to
= elem
->to
;
1685 nla_put(msg
, IFLA_VLAN_QOS_MAPPING
, sizeof(nl_qos_map
), &nl_qos_map
);
1687 nla_nest_end(msg
, qos
);
1689 if (!(qos
= nla_nest_start(msg
, IFLA_VLAN_EGRESS_QOS
)))
1690 goto nla_put_failure
;
1692 vlist_simple_for_each_element(&cfg
->egress_qos_mapping_list
, elem
, node
) {
1693 nl_qos_map
.from
= elem
->from
;
1694 nl_qos_map
.to
= elem
->to
;
1695 nla_put(msg
, IFLA_VLAN_QOS_MAPPING
, sizeof(nl_qos_map
), &nl_qos_map
);
1697 nla_nest_end(msg
, qos
);
1699 nla_nest_end(msg
, data
);
1700 nla_nest_end(msg
, linkinfo
);
1702 rv
= system_rtnl_call(msg
);
1704 D(SYSTEM
, "Error adding vlandev '%s' over '%s': %d\n", vlandev
->ifname
, dev
->ifname
, rv
);
1713 int system_vlandev_del(struct device
*vlandev
)
1715 return system_link_del(vlandev
->ifname
);
1718 #if LINUX_VERSION_CODE >= KERNEL_VERSION(6,1,0)
1719 struct if_get_master_data
{
1725 static void if_get_master_dsa_linkinfo_attr(struct if_get_master_data
*data
,
1726 struct rtattr
*attr
)
1729 int rem
= RTA_PAYLOAD(attr
);
1731 for (cur
= RTA_DATA(attr
); RTA_OK(cur
, rem
); cur
= RTA_NEXT(cur
, rem
)) {
1732 if (cur
->rta_type
!= IFLA_DSA_MASTER
)
1735 data
->master_ifindex
= *(__u32
*)RTA_DATA(cur
);
1739 static void if_get_master_linkinfo_attr(struct if_get_master_data
*data
,
1740 struct rtattr
*attr
)
1743 int rem
= RTA_PAYLOAD(attr
);
1745 for (cur
= RTA_DATA(attr
); RTA_OK(cur
, rem
); cur
= RTA_NEXT(cur
, rem
)) {
1746 if (cur
->rta_type
!= IFLA_INFO_KIND
&& cur
->rta_type
!= IFLA_INFO_DATA
)
1749 if (cur
->rta_type
== IFLA_INFO_KIND
&& strcmp("dsa", (char *)RTA_DATA(cur
)))
1752 if (cur
->rta_type
== IFLA_INFO_DATA
)
1753 if_get_master_dsa_linkinfo_attr(data
, cur
);
1757 static int cb_if_get_master_valid(struct nl_msg
*msg
, void *arg
)
1759 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
1760 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
1761 struct if_get_master_data
*data
= (struct if_get_master_data
*)arg
;
1762 struct rtattr
*attr
;
1765 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
1768 if (ifi
->ifi_family
!= AF_UNSPEC
)
1771 if (ifi
->ifi_index
!= data
->ifindex
)
1774 attr
= IFLA_RTA(ifi
);
1775 rem
= nh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*ifi
));
1777 while (RTA_OK(attr
, rem
)) {
1778 if (attr
->rta_type
== IFLA_LINKINFO
)
1779 if_get_master_linkinfo_attr(data
, attr
);
1781 attr
= RTA_NEXT(attr
, rem
);
1787 static int cb_if_get_master_ack(struct nl_msg
*msg
, void *arg
)
1789 struct if_get_master_data
*data
= (struct if_get_master_data
*)arg
;
1794 static int cb_if_get_master_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1796 struct if_get_master_data
*data
= (struct if_get_master_data
*)arg
;
1801 static int system_if_get_master_ifindex(struct device
*dev
)
1803 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1805 struct ifinfomsg ifi
= {
1806 .ifi_family
= AF_UNSPEC
,
1809 struct if_get_master_data data
= {
1810 .ifindex
= if_nametoindex(dev
->ifname
),
1811 .master_ifindex
= -1,
1819 msg
= nlmsg_alloc_simple(RTM_GETLINK
, NLM_F_REQUEST
);
1823 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
1824 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
1827 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_get_master_valid
, &data
);
1828 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_get_master_ack
, &data
);
1829 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_get_master_error
, &data
);
1831 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
1835 while (data
.pending
> 0)
1836 nl_recvmsgs(sock_rtnl
, cb
);
1838 if (data
.master_ifindex
>= 0)
1839 ret
= data
.master_ifindex
;
1848 static void system_refresh_orig_macaddr(struct device
*dev
, struct device_settings
*s
)
1852 memset(&ifr
, 0, sizeof(ifr
));
1853 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1855 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0)
1856 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
1859 static void system_set_master(struct device
*dev
, int master_ifindex
)
1861 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
1864 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
);
1868 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
1869 nla_put_string(nlm
, IFLA_IFNAME
, dev
->ifname
);
1871 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
1875 nla_put_string(nlm
, IFLA_INFO_KIND
, "dsa");
1876 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
1880 nla_put_u32(nlm
, IFLA_DSA_MASTER
, master_ifindex
);
1882 nla_nest_end(nlm
, infodata
);
1883 nla_nest_end(nlm
, linkinfo
);
1885 system_rtnl_call(nlm
);
1894 static void ethtool_link_mode_clear_bit(__s8 nwords
, int nr
, __u32
*mask
)
1899 if (nr
>= (nwords
* 32))
1902 mask
[nr
/ 32] &= ~(1U << (nr
% 32));
1905 static bool ethtool_link_mode_test_bit(__s8 nwords
, int nr
, const __u32
*mask
)
1910 if (nr
>= (nwords
* 32))
1913 return !!(mask
[nr
/ 32] & (1U << (nr
% 32)));
1917 system_get_ethtool_gro(struct device
*dev
)
1919 struct ethtool_value ecmd
;
1920 struct ifreq ifr
= {
1921 .ifr_data
= (caddr_t
)&ecmd
,
1924 memset(&ecmd
, 0, sizeof(ecmd
));
1925 ecmd
.cmd
= ETHTOOL_GGRO
;
1926 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1928 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
))
1935 system_set_ethtool_gro(struct device
*dev
, struct device_settings
*s
)
1937 struct ethtool_value ecmd
;
1938 struct ifreq ifr
= {
1939 .ifr_data
= (caddr_t
)&ecmd
,
1942 memset(&ecmd
, 0, sizeof(ecmd
));
1943 ecmd
.cmd
= ETHTOOL_SGRO
;
1945 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1947 ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
);
1951 system_set_ethtool_pause(struct device
*dev
, struct device_settings
*s
)
1953 struct ethtool_pauseparam pp
;
1954 struct ifreq ifr
= {
1955 .ifr_data
= (caddr_t
)&pp
,
1958 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
1959 memset(&pp
, 0, sizeof(pp
));
1960 pp
.cmd
= ETHTOOL_GPAUSEPARAM
;
1961 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
))
1964 if (s
->flags
& DEV_OPT_RXPAUSE
|| s
->flags
& DEV_OPT_TXPAUSE
) {
1965 pp
.autoneg
= AUTONEG_DISABLE
;
1967 if (s
->flags
& DEV_OPT_PAUSE
) {
1968 if (s
->flags
& DEV_OPT_RXPAUSE
)
1969 pp
.rx_pause
= s
->rxpause
&& s
->pause
;
1971 pp
.rx_pause
= s
->pause
;
1973 if (s
->flags
& DEV_OPT_TXPAUSE
)
1974 pp
.tx_pause
= s
->txpause
&& s
->pause
;
1976 pp
.tx_pause
= s
->pause
;
1978 if (s
->flags
& DEV_OPT_RXPAUSE
)
1979 pp
.rx_pause
= s
->rxpause
;
1981 if (s
->flags
& DEV_OPT_TXPAUSE
)
1982 pp
.tx_pause
= s
->txpause
;
1985 if (s
->flags
& DEV_OPT_ASYM_PAUSE
&&
1986 !s
->asym_pause
&& (pp
.rx_pause
!= pp
.tx_pause
))
1987 pp
.rx_pause
= pp
.tx_pause
= false;
1989 pp
.autoneg
= AUTONEG_ENABLE
;
1990 /* Pause and Asym_Pause advertising bits will be set via
1991 * ETHTOOL_SLINKSETTINGS in system_set_ethtool_settings()
1995 pp
.cmd
= ETHTOOL_SPAUSEPARAM
;
1996 ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
);
2000 system_set_ethtool_eee_settings(struct device
*dev
, struct device_settings
*s
)
2002 struct ethtool_eee eeecmd
;
2003 struct ifreq ifr
= {
2004 .ifr_data
= (caddr_t
)&eeecmd
,
2007 memset(&eeecmd
, 0, sizeof(eeecmd
));
2008 eeecmd
.cmd
= ETHTOOL_SEEE
;
2009 eeecmd
.eee_enabled
= s
->eee
;
2010 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2012 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0)
2013 netifd_log_message(L_WARNING
, "cannot set eee %d for device %s", s
->eee
, dev
->ifname
);
2017 system_set_ethtool_settings(struct device
*dev
, struct device_settings
*s
)
2020 struct ethtool_link_settings req
;
2021 __u32 link_mode_data
[3 * 127];
2023 struct ifreq ifr
= {
2024 .ifr_data
= (caddr_t
)&ecmd
,
2028 __u32
*supported
, *advertising
;
2030 system_set_ethtool_pause(dev
, s
);
2032 if (s
->flags
& DEV_OPT_EEE
)
2033 system_set_ethtool_eee_settings(dev
, s
);
2035 memset(&ecmd
, 0, sizeof(ecmd
));
2036 ecmd
.req
.cmd
= ETHTOOL_GLINKSETTINGS
;
2037 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2039 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) < 0 ||
2040 ecmd
.req
.link_mode_masks_nwords
>= 0 ||
2041 ecmd
.req
.cmd
!= ETHTOOL_GLINKSETTINGS
)
2044 ecmd
.req
.link_mode_masks_nwords
= -ecmd
.req
.link_mode_masks_nwords
;
2046 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) < 0 ||
2047 ecmd
.req
.link_mode_masks_nwords
<= 0 ||
2048 ecmd
.req
.cmd
!= ETHTOOL_GLINKSETTINGS
)
2051 nwords
= ecmd
.req
.link_mode_masks_nwords
;
2052 supported
= &ecmd
.link_mode_data
[0];
2053 advertising
= &ecmd
.link_mode_data
[nwords
];
2054 memcpy(advertising
, supported
, sizeof(__u32
) * nwords
);
2056 for (i
= 0; i
< ARRAY_SIZE(ethtool_modes
); i
++) {
2057 if (s
->flags
& DEV_OPT_DUPLEX
) {
2059 ethtool_link_mode_clear_bit(nwords
, ethtool_modes
[i
].bit_half
, advertising
);
2061 ethtool_link_mode_clear_bit(nwords
, ethtool_modes
[i
].bit_full
, advertising
);
2063 if (!(s
->flags
& DEV_OPT_SPEED
) ||
2064 s
->speed
== ethtool_modes
[i
].speed
)
2067 ethtool_link_mode_clear_bit(nwords
, ethtool_modes
[i
].bit_full
, advertising
);
2068 ethtool_link_mode_clear_bit(nwords
, ethtool_modes
[i
].bit_half
, advertising
);
2071 if (s
->flags
& DEV_OPT_PAUSE
)
2073 ethtool_link_mode_clear_bit(nwords
, ETHTOOL_LINK_MODE_Pause_BIT
, advertising
);
2075 if (s
->flags
& DEV_OPT_ASYM_PAUSE
)
2077 ethtool_link_mode_clear_bit(nwords
, ETHTOOL_LINK_MODE_Asym_Pause_BIT
, advertising
);
2079 if (s
->flags
& DEV_OPT_AUTONEG
) {
2080 ecmd
.req
.autoneg
= s
->autoneg
? AUTONEG_ENABLE
: AUTONEG_DISABLE
;
2082 if (s
->flags
& DEV_OPT_SPEED
)
2083 ecmd
.req
.speed
= s
->speed
;
2085 if (s
->flags
& DEV_OPT_DUPLEX
)
2086 ecmd
.req
.duplex
= s
->duplex
? DUPLEX_FULL
: DUPLEX_HALF
;
2090 ecmd
.req
.cmd
= ETHTOOL_SLINKSETTINGS
;
2091 ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
);
2095 system_set_ethtool_settings_after_up(struct device
*dev
, struct device_settings
*s
)
2097 if (s
->flags
& DEV_OPT_GRO
)
2098 system_set_ethtool_gro(dev
, s
);
2102 system_if_get_settings(struct device
*dev
, struct device_settings
*s
)
2108 memset(&ifr
, 0, sizeof(ifr
));
2109 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2111 if (ioctl(sock_ioctl
, SIOCGIFMTU
, &ifr
) == 0) {
2112 s
->mtu
= ifr
.ifr_mtu
;
2113 s
->flags
|= DEV_OPT_MTU
;
2116 s
->mtu6
= system_update_ipv6_mtu(dev
, 0);
2118 s
->flags
|= DEV_OPT_MTU6
;
2120 if (ioctl(sock_ioctl
, SIOCGIFTXQLEN
, &ifr
) == 0) {
2121 s
->txqueuelen
= ifr
.ifr_qlen
;
2122 s
->flags
|= DEV_OPT_TXQUEUELEN
;
2125 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0) {
2126 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
2127 s
->flags
|= DEV_OPT_MACADDR
;
2130 if (!system_get_disable_ipv6(dev
, buf
, sizeof(buf
))) {
2131 s
->ipv6
= !strtoul(buf
, NULL
, 0);
2132 s
->flags
|= DEV_OPT_IPV6
;
2135 if (!system_get_ip6segmentrouting(dev
, buf
, sizeof(buf
))) {
2136 s
->ip6segmentrouting
= strtoul(buf
, NULL
, 0);
2137 s
->flags
|= DEV_OPT_IP6SEGMENTROUTING
;
2140 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) == 0) {
2141 s
->promisc
= ifr
.ifr_flags
& IFF_PROMISC
;
2142 s
->flags
|= DEV_OPT_PROMISC
;
2144 s
->multicast
= ifr
.ifr_flags
& IFF_MULTICAST
;
2145 s
->flags
|= DEV_OPT_MULTICAST
;
2148 if (!system_get_rpfilter(dev
, buf
, sizeof(buf
))) {
2149 s
->rpfilter
= strtoul(buf
, NULL
, 0);
2150 s
->flags
|= DEV_OPT_RPFILTER
;
2153 if (!system_get_acceptlocal(dev
, buf
, sizeof(buf
))) {
2154 s
->acceptlocal
= strtoul(buf
, NULL
, 0);
2155 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
2158 if (!system_get_igmpversion(dev
, buf
, sizeof(buf
))) {
2159 s
->igmpversion
= strtoul(buf
, NULL
, 0);
2160 s
->flags
|= DEV_OPT_IGMPVERSION
;
2163 if (!system_get_mldversion(dev
, buf
, sizeof(buf
))) {
2164 s
->mldversion
= strtoul(buf
, NULL
, 0);
2165 s
->flags
|= DEV_OPT_MLDVERSION
;
2168 if (!system_get_neigh4reachabletime(dev
, buf
, sizeof(buf
))) {
2169 s
->neigh4reachabletime
= strtoul(buf
, NULL
, 0);
2170 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
2173 if (!system_get_neigh6reachabletime(dev
, buf
, sizeof(buf
))) {
2174 s
->neigh6reachabletime
= strtoul(buf
, NULL
, 0);
2175 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
2178 if (!system_get_neigh4locktime(dev
, buf
, sizeof(buf
))) {
2179 s
->neigh4locktime
= strtol(buf
, NULL
, 0);
2180 s
->flags
|= DEV_OPT_NEIGHLOCKTIME
;
2183 if (!system_get_neigh4gcstaletime(dev
, buf
, sizeof(buf
))) {
2184 s
->neigh4gcstaletime
= strtoul(buf
, NULL
, 0);
2185 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
2188 if (!system_get_neigh6gcstaletime(dev
, buf
, sizeof(buf
))) {
2189 s
->neigh6gcstaletime
= strtoul(buf
, NULL
, 0);
2190 s
->flags
|= DEV_OPT_NEIGHGCSTALETIME
;
2193 if (!system_get_dadtransmits(dev
, buf
, sizeof(buf
))) {
2194 s
->dadtransmits
= strtoul(buf
, NULL
, 0);
2195 s
->flags
|= DEV_OPT_DADTRANSMITS
;
2198 if (!system_get_sendredirects(dev
, buf
, sizeof(buf
))) {
2199 s
->sendredirects
= strtoul(buf
, NULL
, 0);
2200 s
->flags
|= DEV_OPT_SENDREDIRECTS
;
2203 if (!system_get_drop_v4_unicast_in_l2_multicast(dev
, buf
, sizeof(buf
))) {
2204 s
->drop_v4_unicast_in_l2_multicast
= strtoul(buf
, NULL
, 0);
2205 s
->flags
|= DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
;
2208 if (!system_get_drop_v6_unicast_in_l2_multicast(dev
, buf
, sizeof(buf
))) {
2209 s
->drop_v6_unicast_in_l2_multicast
= strtoul(buf
, NULL
, 0);
2210 s
->flags
|= DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
;
2213 if (!system_get_drop_gratuitous_arp(dev
, buf
, sizeof(buf
))) {
2214 s
->drop_gratuitous_arp
= strtoul(buf
, NULL
, 0);
2215 s
->flags
|= DEV_OPT_DROP_GRATUITOUS_ARP
;
2218 if (!system_get_drop_unsolicited_na(dev
, buf
, sizeof(buf
))) {
2219 s
->drop_unsolicited_na
= strtoul(buf
, NULL
, 0);
2220 s
->flags
|= DEV_OPT_DROP_UNSOLICITED_NA
;
2223 if (!system_get_arp_accept(dev
, buf
, sizeof(buf
))) {
2224 s
->arp_accept
= strtoul(buf
, NULL
, 0);
2225 s
->flags
|= DEV_OPT_ARP_ACCEPT
;
2228 ret
= system_get_ethtool_gro(dev
);
2231 s
->flags
|= DEV_OPT_GRO
;
2234 #if LINUX_VERSION_CODE >= KERNEL_VERSION(6,1,0)
2235 ret
= system_if_get_master_ifindex(dev
);
2237 s
->master_ifindex
= ret
;
2238 s
->flags
|= DEV_OPT_MASTER
;
2244 system_if_apply_settings(struct device
*dev
, struct device_settings
*s
, uint64_t apply_mask
)
2249 apply_mask
&= s
->flags
;
2251 if (apply_mask
& DEV_OPT_MASTER
) {
2252 #if LINUX_VERSION_CODE >= KERNEL_VERSION(6,1,0)
2253 system_set_master(dev
, s
->master_ifindex
);
2254 if (!(apply_mask
& (DEV_OPT_MACADDR
| DEV_OPT_DEFAULT_MACADDR
)) || dev
->external
)
2255 system_refresh_orig_macaddr(dev
, &dev
->orig_settings
);
2257 netifd_log_message(L_WARNING
, "%s Your kernel is older than linux 6.1.0, changing DSA port conduit is not supported!", dev
->ifname
);
2261 memset(&ifr
, 0, sizeof(ifr
));
2262 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2263 if (apply_mask
& DEV_OPT_MTU
) {
2264 ifr
.ifr_mtu
= s
->mtu
;
2265 if (ioctl(sock_ioctl
, SIOCSIFMTU
, &ifr
) < 0)
2266 s
->flags
&= ~DEV_OPT_MTU
;
2268 if (apply_mask
& DEV_OPT_MTU6
) {
2269 system_update_ipv6_mtu(dev
, s
->mtu6
);
2271 if (apply_mask
& DEV_OPT_TXQUEUELEN
) {
2272 ifr
.ifr_qlen
= s
->txqueuelen
;
2273 if (ioctl(sock_ioctl
, SIOCSIFTXQLEN
, &ifr
) < 0)
2274 s
->flags
&= ~DEV_OPT_TXQUEUELEN
;
2276 if ((apply_mask
& (DEV_OPT_MACADDR
| DEV_OPT_DEFAULT_MACADDR
)) && !dev
->external
) {
2277 ifr
.ifr_hwaddr
.sa_family
= ARPHRD_ETHER
;
2278 memcpy(&ifr
.ifr_hwaddr
.sa_data
, s
->macaddr
, sizeof(s
->macaddr
));
2279 if (ioctl(sock_ioctl
, SIOCSIFHWADDR
, &ifr
) < 0)
2280 s
->flags
&= ~DEV_OPT_MACADDR
;
2282 if (apply_mask
& DEV_OPT_IPV6
)
2283 system_set_disable_ipv6(dev
, s
->ipv6
? "0" : "1");
2284 if (s
->flags
& DEV_OPT_IP6SEGMENTROUTING
& apply_mask
) {
2285 struct device dummy
= {
2288 bool ip6segmentrouting
= device_check_ip6segmentrouting();
2290 system_set_ip6segmentrouting(dev
, s
->ip6segmentrouting
? "1" : "0");
2291 system_set_ip6segmentrouting(&dummy
, ip6segmentrouting
? "1" : "0");
2293 if (apply_mask
& DEV_OPT_PROMISC
) {
2294 if (system_if_flags(dev
->ifname
, s
->promisc
? IFF_PROMISC
: 0,
2295 !s
->promisc
? IFF_PROMISC
: 0) < 0)
2296 s
->flags
&= ~DEV_OPT_PROMISC
;
2298 if (apply_mask
& DEV_OPT_RPFILTER
) {
2299 snprintf(buf
, sizeof(buf
), "%u", s
->rpfilter
);
2300 system_set_rpfilter(dev
, buf
);
2302 if (apply_mask
& DEV_OPT_ACCEPTLOCAL
)
2303 system_set_acceptlocal(dev
, s
->acceptlocal
? "1" : "0");
2304 if (apply_mask
& DEV_OPT_IGMPVERSION
) {
2305 snprintf(buf
, sizeof(buf
), "%u", s
->igmpversion
);
2306 system_set_igmpversion(dev
, buf
);
2308 if (apply_mask
& DEV_OPT_MLDVERSION
) {
2309 snprintf(buf
, sizeof(buf
), "%u", s
->mldversion
);
2310 system_set_mldversion(dev
, buf
);
2312 if (apply_mask
& DEV_OPT_NEIGHREACHABLETIME
) {
2313 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4reachabletime
);
2314 system_set_neigh4reachabletime(dev
, buf
);
2315 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6reachabletime
);
2316 system_set_neigh6reachabletime(dev
, buf
);
2318 if (apply_mask
& DEV_OPT_NEIGHLOCKTIME
) {
2319 snprintf(buf
, sizeof(buf
), "%d", s
->neigh4locktime
);
2320 system_set_neigh4locktime(dev
, buf
);
2322 if (apply_mask
& DEV_OPT_NEIGHGCSTALETIME
) {
2323 snprintf(buf
, sizeof(buf
), "%u", s
->neigh4gcstaletime
);
2324 system_set_neigh4gcstaletime(dev
, buf
);
2325 snprintf(buf
, sizeof(buf
), "%u", s
->neigh6gcstaletime
);
2326 system_set_neigh6gcstaletime(dev
, buf
);
2328 if (apply_mask
& DEV_OPT_DADTRANSMITS
) {
2329 snprintf(buf
, sizeof(buf
), "%u", s
->dadtransmits
);
2330 system_set_dadtransmits(dev
, buf
);
2332 if (apply_mask
& DEV_OPT_MULTICAST
) {
2333 if (system_if_flags(dev
->ifname
, s
->multicast
? IFF_MULTICAST
: 0,
2334 !s
->multicast
? IFF_MULTICAST
: 0) < 0)
2335 s
->flags
&= ~DEV_OPT_MULTICAST
;
2337 if (apply_mask
& DEV_OPT_SENDREDIRECTS
)
2338 system_set_sendredirects(dev
, s
->sendredirects
? "1" : "0");
2339 if (apply_mask
& DEV_OPT_DROP_V4_UNICAST_IN_L2_MULTICAST
)
2340 system_set_drop_v4_unicast_in_l2_multicast(dev
, s
->drop_v4_unicast_in_l2_multicast
? "1" : "0");
2341 if (apply_mask
& DEV_OPT_DROP_V6_UNICAST_IN_L2_MULTICAST
)
2342 system_set_drop_v6_unicast_in_l2_multicast(dev
, s
->drop_v6_unicast_in_l2_multicast
? "1" : "0");
2343 if (apply_mask
& DEV_OPT_DROP_GRATUITOUS_ARP
)
2344 system_set_drop_gratuitous_arp(dev
, s
->drop_gratuitous_arp
? "1" : "0");
2345 if (apply_mask
& DEV_OPT_DROP_UNSOLICITED_NA
)
2346 system_set_drop_unsolicited_na(dev
, s
->drop_unsolicited_na
? "1" : "0");
2347 if (apply_mask
& DEV_OPT_ARP_ACCEPT
)
2348 system_set_arp_accept(dev
, s
->arp_accept
? "1" : "0");
2349 system_set_ethtool_settings(dev
, s
);
2352 void system_if_apply_settings_after_up(struct device
*dev
, struct device_settings
*s
)
2354 system_set_ethtool_settings_after_up(dev
, s
);
2357 int system_if_up(struct device
*dev
)
2359 return system_if_flags(dev
->ifname
, IFF_UP
, 0);
2362 int system_if_down(struct device
*dev
)
2364 return system_if_flags(dev
->ifname
, 0, IFF_UP
);
2367 struct if_check_data
{
2373 static int cb_if_check_valid(struct nl_msg
*msg
, void *arg
)
2375 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
2376 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
2377 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
2379 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
2382 system_device_update_state(chk
->dev
, ifi
->ifi_flags
, ifi
->ifi_index
);
2386 static int cb_if_check_ack(struct nl_msg
*msg
, void *arg
)
2388 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
2393 static int cb_if_check_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
2395 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
2397 if (chk
->dev
->type
== &simple_device_type
)
2398 device_set_present(chk
->dev
, false);
2399 device_set_link(chk
->dev
, false);
2400 chk
->pending
= err
->error
;
2405 struct bridge_vlan_check_data
{
2406 struct device
*check_dev
;
2412 static void bridge_vlan_check_port(struct bridge_vlan_check_data
*data
,
2413 struct bridge_vlan_port
*port
,
2414 struct bridge_vlan_info
*vinfo
)
2416 uint16_t flags
= 0, diff
, mask
;
2418 if (port
->flags
& BRVLAN_F_PVID
)
2419 flags
|= BRIDGE_VLAN_INFO_PVID
;
2420 if (port
->flags
& BRVLAN_F_UNTAGGED
)
2421 flags
|= BRIDGE_VLAN_INFO_UNTAGGED
;
2423 diff
= vinfo
->flags
^ flags
;
2424 mask
= BRVLAN_F_UNTAGGED
| (flags
& BRIDGE_VLAN_INFO_PVID
);
2427 data
->pending
= false;
2433 static void bridge_vlan_check_attr(struct bridge_vlan_check_data
*data
,
2434 struct rtattr
*attr
)
2436 struct bridge_vlan_hotplug_port
*port
;
2437 struct bridge_vlan_info
*vinfo
;
2438 struct bridge_vlan
*vlan
;
2440 int rem
= RTA_PAYLOAD(attr
);
2443 for (cur
= RTA_DATA(attr
); RTA_OK(cur
, rem
); cur
= RTA_NEXT(cur
, rem
)) {
2444 if (cur
->rta_type
!= IFLA_BRIDGE_VLAN_INFO
)
2447 vinfo
= RTA_DATA(cur
);
2448 vlan
= vlist_find(&data
->check_dev
->vlans
, &vinfo
->vid
, vlan
, node
);
2451 data
->pending
= false;
2455 for (i
= 0; i
< vlan
->n_ports
; i
++)
2456 if (!vlan
->ports
[i
].check
)
2457 bridge_vlan_check_port(data
, &vlan
->ports
[i
], vinfo
);
2459 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
)
2460 if (!port
->port
.check
)
2461 bridge_vlan_check_port(data
, &port
->port
, vinfo
);
2465 static int bridge_vlan_check_cb(struct nl_msg
*msg
, void *arg
)
2467 struct bridge_vlan_check_data
*data
= arg
;
2468 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
2469 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
2470 struct rtattr
*attr
;
2473 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
2476 if (ifi
->ifi_family
!= AF_BRIDGE
)
2479 if (ifi
->ifi_index
!= data
->ifindex
)
2482 attr
= IFLA_RTA(ifi
);
2483 rem
= nh
->nlmsg_len
- NLMSG_LENGTH(sizeof(*ifi
));
2484 while (RTA_OK(attr
, rem
)) {
2485 if (attr
->rta_type
== IFLA_AF_SPEC
)
2486 bridge_vlan_check_attr(data
, attr
);
2488 attr
= RTA_NEXT(attr
, rem
);
2494 static int bridge_vlan_ack_cb(struct nl_msg
*msg
, void *arg
)
2496 struct bridge_vlan_check_data
*data
= arg
;
2497 data
->pending
= false;
2501 static int bridge_vlan_error_cb(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
2503 struct bridge_vlan_check_data
*data
= arg
;
2504 data
->pending
= false;
2508 int system_bridge_vlan_check(struct device
*dev
, char *ifname
)
2510 struct bridge_vlan_check_data data
= {
2512 .ifindex
= if_nametoindex(ifname
),
2516 static struct ifinfomsg ifi
= {
2517 .ifi_family
= AF_BRIDGE
2519 static struct rtattr ext_req
= {
2520 .rta_type
= IFLA_EXT_MASK
,
2521 .rta_len
= RTA_LENGTH(sizeof(uint32_t)),
2523 uint32_t filter
= RTEXT_FILTER_BRVLAN
;
2524 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
2525 struct bridge_vlan
*vlan
;
2532 msg
= nlmsg_alloc_simple(RTM_GETLINK
, NLM_F_DUMP
);
2534 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
2535 nlmsg_append(msg
, &ext_req
, sizeof(ext_req
), NLMSG_ALIGNTO
) ||
2536 nlmsg_append(msg
, &filter
, sizeof(filter
), 0))
2539 vlist_for_each_element(&dev
->vlans
, vlan
, node
) {
2540 struct bridge_vlan_hotplug_port
*port
;
2542 for (i
= 0; i
< vlan
->n_ports
; i
++) {
2543 if (!strcmp(vlan
->ports
[i
].ifname
, ifname
))
2544 vlan
->ports
[i
].check
= 0;
2546 vlan
->ports
[i
].check
= -1;
2549 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
2550 if (!strcmp(port
->port
.ifname
, ifname
))
2551 port
->port
.check
= 0;
2553 port
->port
.check
= -1;
2557 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, bridge_vlan_check_cb
, &data
);
2558 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, bridge_vlan_ack_cb
, &data
);
2559 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, bridge_vlan_ack_cb
, &data
);
2560 nl_cb_err(cb
, NL_CB_CUSTOM
, bridge_vlan_error_cb
, &data
);
2562 if (nl_send_auto_complete(sock_rtnl
, msg
) < 0)
2566 while (data
.pending
)
2567 nl_recvmsgs(sock_rtnl
, cb
);
2569 vlist_for_each_element(&dev
->vlans
, vlan
, node
) {
2570 struct bridge_vlan_hotplug_port
*port
;
2572 for (i
= 0; i
< vlan
->n_ports
; i
++) {
2573 if (!vlan
->ports
[i
].check
) {
2579 list_for_each_entry(port
, &vlan
->hotplug_ports
, list
) {
2580 if (!port
->port
.check
) {
2593 int system_if_check(struct device
*dev
)
2595 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
2597 struct ifinfomsg ifi
= {
2598 .ifi_family
= AF_UNSPEC
,
2601 struct if_check_data chk
= {
2610 msg
= nlmsg_alloc_simple(RTM_GETLINK
, 0);
2614 if (nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
2615 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
2618 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_check_valid
, &chk
);
2619 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_check_ack
, &chk
);
2620 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_check_error
, &chk
);
2622 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
2626 while (chk
.pending
> 0)
2627 nl_recvmsgs(sock_rtnl
, cb
);
2639 system_if_get_parent(struct device
*dev
)
2641 char buf
[64], *devname
;
2642 int ifindex
, iflink
;
2644 if (system_get_dev_sysfs("iflink", dev
->ifname
, buf
, sizeof(buf
)) < 0)
2647 iflink
= strtoul(buf
, NULL
, 0);
2648 ifindex
= system_if_resolve(dev
);
2649 if (!iflink
|| iflink
== ifindex
)
2652 devname
= if_indextoname(iflink
, buf
);
2656 return device_get(devname
, true);
2660 read_string_file(int dir_fd
, const char *file
, char *buf
, int len
)
2666 fd
= openat(dir_fd
, file
, O_RDONLY
);
2671 len
= read(fd
, buf
, len
- 1);
2675 } else if (len
> 0) {
2678 c
= strchr(buf
, '\n');
2691 read_uint64_file(int dir_fd
, const char *file
, uint64_t *val
)
2696 ret
= read_string_file(dir_fd
, file
, buf
, sizeof(buf
));
2698 *val
= strtoull(buf
, NULL
, 0);
2704 system_if_force_external(const char *ifname
)
2708 return stat(dev_sysfs_path(ifname
, "phy80211"), &s
) == 0;
2712 system_netdevtype_name(unsigned short dev_type
)
2716 for (i
= 0; i
< ARRAY_SIZE(netdev_types
); i
++) {
2717 if (netdev_types
[i
].id
== dev_type
)
2718 return netdev_types
[i
].name
;
2721 /* the last key is used by default */
2722 i
= ARRAY_SIZE(netdev_types
) - 1;
2724 return netdev_types
[i
].name
;
2728 system_add_devtype(struct blob_buf
*b
, const char *ifname
)
2733 if (!system_get_dev_sysfs("uevent", ifname
, buf
, sizeof(buf
))) {
2734 const char *info
= "DEVTYPE=";
2735 char *context
= NULL
;
2736 const char *line
= strtok_r(buf
, "\r\n", &context
);
2738 while (line
!= NULL
) {
2739 char *index
= strstr(line
, info
);
2741 if (index
!= NULL
) {
2742 blobmsg_add_string(b
, "devtype", index
+ strlen(info
));
2747 line
= strtok_r(NULL
, "\r\n", &context
);
2752 unsigned short number
= 0;
2753 const char *name
= NULL
;
2755 if (!system_get_dev_sysfs("type", ifname
, buf
, sizeof(buf
))) {
2756 number
= strtoul(buf
, NULL
, 0);
2757 name
= system_netdevtype_name(number
);
2758 blobmsg_add_string(b
, "devtype", name
);
2763 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
2766 ethtool_feature_count(const char *ifname
)
2769 struct ethtool_sset_info hdr
;
2773 .cmd
= ETHTOOL_GSSET_INFO
,
2774 .sset_mask
= 1 << ETH_SS_FEATURES
2778 struct ifreq ifr
= {
2779 .ifr_data
= (void *)&req
2782 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
2784 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0)
2787 if (!req
.hdr
.sset_mask
)
2794 ethtool_feature_index(const char *ifname
, const char *keyname
)
2796 struct ethtool_gstrings
*feature_names
;
2797 struct ifreq ifr
= { 0 };
2801 n_features
= ethtool_feature_count(ifname
);
2803 if (n_features
<= 0)
2806 feature_names
= calloc(1, sizeof(*feature_names
) + n_features
* ETH_GSTRING_LEN
);
2811 feature_names
->cmd
= ETHTOOL_GSTRINGS
;
2812 feature_names
->string_set
= ETH_SS_FEATURES
;
2813 feature_names
->len
= n_features
;
2815 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
2816 ifr
.ifr_data
= (void *)feature_names
;
2818 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0) {
2819 free(feature_names
);
2824 for (i
= 0; i
< feature_names
->len
; i
++)
2825 if (!strcmp((char *)&feature_names
->data
[i
* ETH_GSTRING_LEN
], keyname
))
2828 if (i
>= feature_names
->len
)
2831 free(feature_names
);
2837 ethtool_feature_value(const char *ifname
, const char *keyname
)
2839 struct ethtool_get_features_block
*feature_block
;
2840 struct ethtool_gfeatures
*feature_values
;
2841 struct ifreq ifr
= { 0 };
2842 int32_t feature_idx
;
2845 feature_idx
= ethtool_feature_index(ifname
, keyname
);
2847 if (feature_idx
< 0)
2850 feature_values
= calloc(1,
2851 sizeof(*feature_values
) +
2852 sizeof(feature_values
->features
[0]) * DIV_ROUND_UP(feature_idx
, 32));
2854 if (!feature_values
)
2857 feature_values
->cmd
= ETHTOOL_GFEATURES
;
2858 feature_values
->size
= DIV_ROUND_UP(feature_idx
, 32);
2860 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
) - 1);
2861 ifr
.ifr_data
= (void *)feature_values
;
2863 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) != 0) {
2864 free(feature_values
);
2869 feature_block
= &feature_values
->features
[feature_idx
/ 32];
2870 active
= feature_block
->active
& (1U << feature_idx
% 32);
2872 free(feature_values
);
2878 system_add_link_mode_name(struct blob_buf
*b
, int i
, bool half
)
2882 /* allocate string buffer large enough for the mode name and a suffix
2883 * "-F" or "-H" indicating full duplex or half duplex.
2885 buf
= blobmsg_alloc_string_buffer(b
, NULL
, strlen(ethtool_modes
[i
].name
) + 3);
2889 strcpy(buf
, ethtool_modes
[i
].name
);
2895 blobmsg_add_string_buffer(b
);
2899 system_add_link_modes(__s8 nwords
, struct blob_buf
*b
, __u32
*mask
)
2903 for (i
= 0; i
< ARRAY_SIZE(ethtool_modes
); i
++) {
2904 if (ethtool_link_mode_test_bit(nwords
, ethtool_modes
[i
].bit_half
, mask
))
2905 system_add_link_mode_name(b
, i
, true);
2907 if (ethtool_link_mode_test_bit(nwords
, ethtool_modes
[i
].bit_full
, mask
))
2908 system_add_link_mode_name(b
, i
, false);
2913 system_add_pause_modes(__s8 nwords
, struct blob_buf
*b
, __u32
*mask
)
2915 if (ethtool_link_mode_test_bit(nwords
, ETHTOOL_LINK_MODE_Pause_BIT
, mask
))
2916 blobmsg_add_string(b
, NULL
, "pause");
2918 if (ethtool_link_mode_test_bit(nwords
, ETHTOOL_LINK_MODE_Asym_Pause_BIT
, mask
))
2919 blobmsg_add_string(b
, NULL
, "asym_pause");
2924 system_add_ethtool_pause_an(struct blob_buf
*b
, __s8 nwords
,
2925 __u32
*advertising
, __u32
*lp_advertising
)
2927 bool an_rx
= false, an_tx
= false;
2930 d
= blobmsg_open_array(b
, "negotiated");
2932 /* Work out negotiated pause frame usage per
2933 * IEEE 802.3-2005 table 28B-3.
2935 if (ethtool_link_mode_test_bit(nwords
,
2936 ETHTOOL_LINK_MODE_Pause_BIT
,
2938 ethtool_link_mode_test_bit(nwords
,
2939 ETHTOOL_LINK_MODE_Pause_BIT
,
2943 } else if (ethtool_link_mode_test_bit(nwords
,
2944 ETHTOOL_LINK_MODE_Asym_Pause_BIT
,
2946 ethtool_link_mode_test_bit(nwords
,
2947 ETHTOOL_LINK_MODE_Asym_Pause_BIT
,
2949 if (ethtool_link_mode_test_bit(nwords
,
2950 ETHTOOL_LINK_MODE_Pause_BIT
,
2953 else if (ethtool_link_mode_test_bit(nwords
,
2954 ETHTOOL_LINK_MODE_Pause_BIT
,
2959 blobmsg_add_string(b
, NULL
, "rx");
2962 blobmsg_add_string(b
, NULL
, "tx");
2964 blobmsg_close_array(b
, d
);
2968 system_get_ethtool_pause(struct device
*dev
, bool *rx_pause
, bool *tx_pause
, bool *pause_autoneg
)
2970 struct ethtool_pauseparam pp
;
2971 struct ifreq ifr
= {
2972 .ifr_data
= (caddr_t
)&pp
,
2975 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
2976 memset(&pp
, 0, sizeof(pp
));
2977 pp
.cmd
= ETHTOOL_GPAUSEPARAM
;
2980 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) == -1) {
2981 *pause_autoneg
= true;
2985 *rx_pause
= pp
.rx_pause
;
2986 *tx_pause
= pp
.tx_pause
;
2987 *pause_autoneg
= pp
.autoneg
;
2991 system_if_dump_info(struct device
*dev
, struct blob_buf
*b
)
2993 __u32
*supported
, *advertising
, *lp_advertising
;
2994 bool rx_pause
, tx_pause
, pause_autoneg
;
2996 struct ethtool_link_settings req
;
2997 __u32 link_mode_data
[3 * 127];
2999 struct ifreq ifr
= {
3000 .ifr_data
= (caddr_t
)&ecmd
,
3006 system_get_ethtool_pause(dev
, &rx_pause
, &tx_pause
, &pause_autoneg
);
3008 memset(&ecmd
, 0, sizeof(ecmd
));
3009 ecmd
.req
.cmd
= ETHTOOL_GLINKSETTINGS
;
3010 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
) - 1);
3012 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) < 0 ||
3013 ecmd
.req
.link_mode_masks_nwords
>= 0 ||
3014 ecmd
.req
.cmd
!= ETHTOOL_GLINKSETTINGS
)
3017 ecmd
.req
.link_mode_masks_nwords
= -ecmd
.req
.link_mode_masks_nwords
;
3019 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) < 0 ||
3020 ecmd
.req
.link_mode_masks_nwords
<= 0 ||
3021 ecmd
.req
.cmd
!= ETHTOOL_GLINKSETTINGS
)
3024 nwords
= ecmd
.req
.link_mode_masks_nwords
;
3025 supported
= &ecmd
.link_mode_data
[0];
3026 advertising
= &ecmd
.link_mode_data
[nwords
];
3027 lp_advertising
= &ecmd
.link_mode_data
[2 * nwords
];
3029 c
= blobmsg_open_array(b
, "link-advertising");
3030 system_add_link_modes(nwords
, b
, advertising
);
3031 blobmsg_close_array(b
, c
);
3033 c
= blobmsg_open_array(b
, "link-partner-advertising");
3034 system_add_link_modes(nwords
, b
, lp_advertising
);
3035 blobmsg_close_array(b
, c
);
3037 c
= blobmsg_open_array(b
, "link-supported");
3038 system_add_link_modes(nwords
, b
, supported
);
3039 blobmsg_close_array(b
, c
);
3041 if (ethtool_validate_speed(ecmd
.req
.speed
) &&
3042 (ecmd
.req
.speed
!= (__u32
)SPEED_UNKNOWN
) &&
3043 (ecmd
.req
.speed
!= 0)) {
3044 s
= blobmsg_alloc_string_buffer(b
, "speed", 10);
3045 snprintf(s
, 8, "%d%c", ecmd
.req
.speed
,
3046 ecmd
.req
.duplex
== DUPLEX_HALF
? 'H' : 'F');
3047 blobmsg_add_string_buffer(b
);
3049 blobmsg_add_u8(b
, "autoneg", !!ecmd
.req
.autoneg
);
3051 c
= blobmsg_open_table(b
, "flow-control");
3052 blobmsg_add_u8(b
, "autoneg", pause_autoneg
);
3054 d
= blobmsg_open_array(b
, "supported");
3055 system_add_pause_modes(nwords
, b
, supported
);
3056 blobmsg_close_array(b
, d
);
3058 if (pause_autoneg
) {
3059 d
= blobmsg_open_array(b
, "link-advertising");
3060 system_add_pause_modes(nwords
, b
, advertising
);
3061 blobmsg_close_array(b
, d
);
3064 d
= blobmsg_open_array(b
, "link-partner-advertising");
3065 system_add_pause_modes(nwords
, b
, lp_advertising
);
3066 blobmsg_close_array(b
, d
);
3068 if (pause_autoneg
) {
3069 system_add_ethtool_pause_an(b
, nwords
, advertising
,
3072 d
= blobmsg_open_array(b
, "selected");
3074 blobmsg_add_string(b
, NULL
, "rx");
3077 blobmsg_add_string(b
, NULL
, "tx");
3079 blobmsg_close_array(b
, d
);
3082 blobmsg_close_table(b
, c
);
3084 blobmsg_add_u8(b
, "hw-tc-offload",
3085 ethtool_feature_value(dev
->ifname
, "hw-tc-offload"));
3087 system_add_devtype(b
, dev
->ifname
);
3093 system_if_dump_stats(struct device
*dev
, struct blob_buf
*b
)
3095 const char *const counters
[] = {
3096 "collisions", "rx_frame_errors", "tx_compressed",
3097 "multicast", "rx_length_errors", "tx_dropped",
3098 "rx_bytes", "rx_missed_errors", "tx_errors",
3099 "rx_compressed", "rx_over_errors", "tx_fifo_errors",
3100 "rx_crc_errors", "rx_packets", "tx_heartbeat_errors",
3101 "rx_dropped", "tx_aborted_errors", "tx_packets",
3102 "rx_errors", "tx_bytes", "tx_window_errors",
3103 "rx_fifo_errors", "tx_carrier_errors",
3109 stats_dir
= open(dev_sysfs_path(dev
->ifname
, "statistics"), O_DIRECTORY
);
3113 for (i
= 0; i
< ARRAY_SIZE(counters
); i
++)
3114 if (read_uint64_file(stats_dir
, counters
[i
], &val
))
3115 blobmsg_add_u64(b
, counters
[i
], val
);
3121 static int system_addr(struct device
*dev
, struct device_addr
*addr
, int cmd
)
3123 bool v4
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
);
3124 int alen
= v4
? 4 : 16;
3125 unsigned int flags
= 0;
3126 struct ifaddrmsg ifa
= {
3127 .ifa_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
3128 .ifa_prefixlen
= addr
->mask
,
3129 .ifa_index
= dev
->ifindex
,
3133 if (cmd
== RTM_NEWADDR
)
3134 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
3136 msg
= nlmsg_alloc_simple(cmd
, flags
);
3140 nlmsg_append(msg
, &ifa
, sizeof(ifa
), 0);
3141 nla_put(msg
, IFA_LOCAL
, alen
, &addr
->addr
);
3143 if (addr
->broadcast
)
3144 nla_put_u32(msg
, IFA_BROADCAST
, addr
->broadcast
);
3145 if (addr
->point_to_point
)
3146 nla_put_u32(msg
, IFA_ADDRESS
, addr
->point_to_point
);
3148 time_t now
= system_get_rtime();
3149 struct ifa_cacheinfo cinfo
= {0xffffffffU
, 0xffffffffU
, 0, 0};
3151 if (addr
->preferred_until
) {
3152 int64_t preferred
= addr
->preferred_until
- now
;
3155 else if (preferred
> UINT32_MAX
)
3156 preferred
= UINT32_MAX
;
3158 cinfo
.ifa_prefered
= preferred
;
3161 if (addr
->valid_until
) {
3162 int64_t valid
= addr
->valid_until
- now
;
3167 else if (valid
> UINT32_MAX
)
3170 cinfo
.ifa_valid
= valid
;
3173 nla_put(msg
, IFA_CACHEINFO
, sizeof(cinfo
), &cinfo
);
3175 if (cmd
== RTM_NEWADDR
&& (addr
->flags
& DEVADDR_OFFLINK
))
3176 nla_put_u32(msg
, IFA_FLAGS
, IFA_F_NOPREFIXROUTE
);
3179 return system_rtnl_call(msg
);
3182 int system_add_address(struct device
*dev
, struct device_addr
*addr
)
3184 return system_addr(dev
, addr
, RTM_NEWADDR
);
3187 int system_del_address(struct device
*dev
, struct device_addr
*addr
)
3189 return system_addr(dev
, addr
, RTM_DELADDR
);
3192 static int system_neigh(struct device
*dev
, struct device_neighbor
*neighbor
, int cmd
)
3194 int alen
= ((neighbor
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
3195 unsigned int flags
= 0;
3196 struct ndmsg ndm
= {
3197 .ndm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
3198 .ndm_ifindex
= dev
->ifindex
,
3199 .ndm_state
= NUD_PERMANENT
,
3200 .ndm_flags
= (neighbor
->proxy
? NTF_PROXY
: 0) | (neighbor
->router
? NTF_ROUTER
: 0),
3204 if (cmd
== RTM_NEWNEIGH
)
3205 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
3207 msg
= nlmsg_alloc_simple(cmd
, flags
);
3212 nlmsg_append(msg
, &ndm
, sizeof(ndm
), 0);
3214 nla_put(msg
, NDA_DST
, alen
, &neighbor
->addr
);
3215 if (neighbor
->flags
& DEVNEIGH_MAC
)
3216 nla_put(msg
, NDA_LLADDR
, sizeof(neighbor
->macaddr
), &neighbor
->macaddr
);
3219 return system_rtnl_call(msg
);
3222 int system_add_neighbor(struct device
*dev
, struct device_neighbor
*neighbor
)
3224 return system_neigh(dev
, neighbor
, RTM_NEWNEIGH
);
3227 int system_del_neighbor(struct device
*dev
, struct device_neighbor
*neighbor
)
3229 return system_neigh(dev
, neighbor
, RTM_DELNEIGH
);
3232 static int system_rt(struct device
*dev
, struct device_route
*route
, int cmd
)
3234 int alen
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
3236 unsigned int flags
= 0;
3239 have_gw
= !!route
->nexthop
.in
.s_addr
;
3241 have_gw
= route
->nexthop
.in6
.s6_addr32
[0] ||
3242 route
->nexthop
.in6
.s6_addr32
[1] ||
3243 route
->nexthop
.in6
.s6_addr32
[2] ||
3244 route
->nexthop
.in6
.s6_addr32
[3];
3246 unsigned int table
= (route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))
3247 ? route
->table
: RT_TABLE_MAIN
;
3249 struct rtmsg rtm
= {
3250 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
3251 .rtm_dst_len
= route
->mask
,
3252 .rtm_src_len
= route
->sourcemask
,
3253 .rtm_table
= (table
< 256) ? table
: RT_TABLE_UNSPEC
,
3254 .rtm_protocol
= (route
->flags
& DEVROUTE_PROTO
) ? route
->proto
: RTPROT_STATIC
,
3255 .rtm_scope
= RT_SCOPE_NOWHERE
,
3256 .rtm_type
= (cmd
== RTM_DELROUTE
) ? 0: RTN_UNICAST
,
3257 .rtm_flags
= (route
->flags
& DEVROUTE_ONLINK
) ? RTNH_F_ONLINK
: 0,
3261 if (cmd
== RTM_NEWROUTE
) {
3262 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
3264 if (!dev
) { /* Add null-route */
3265 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
3266 rtm
.rtm_type
= RTN_UNREACHABLE
;
3269 rtm
.rtm_scope
= (have_gw
) ? RT_SCOPE_UNIVERSE
: RT_SCOPE_LINK
;
3272 if (route
->flags
& DEVROUTE_TYPE
) {
3273 rtm
.rtm_type
= route
->type
;
3274 if (!(route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))) {
3275 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_BROADCAST
||
3276 rtm
.rtm_type
== RTN_NAT
|| rtm
.rtm_type
== RTN_ANYCAST
)
3277 rtm
.rtm_table
= RT_TABLE_LOCAL
;
3280 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_NAT
) {
3281 rtm
.rtm_scope
= RT_SCOPE_HOST
;
3282 } else if (rtm
.rtm_type
== RTN_BROADCAST
|| rtm
.rtm_type
== RTN_MULTICAST
||
3283 rtm
.rtm_type
== RTN_ANYCAST
) {
3284 rtm
.rtm_scope
= RT_SCOPE_LINK
;
3285 } else if (rtm
.rtm_type
== RTN_BLACKHOLE
|| rtm
.rtm_type
== RTN_UNREACHABLE
||
3286 rtm
.rtm_type
== RTN_PROHIBIT
|| rtm
.rtm_type
== RTN_FAILED_POLICY
||
3287 rtm
.rtm_type
== RTN_THROW
) {
3288 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
3293 if (route
->flags
& DEVROUTE_NODEV
)
3296 msg
= nlmsg_alloc_simple(cmd
, flags
);
3300 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
3303 nla_put(msg
, RTA_DST
, alen
, &route
->addr
);
3305 if (route
->sourcemask
) {
3306 if (rtm
.rtm_family
== AF_INET
)
3307 nla_put(msg
, RTA_PREFSRC
, alen
, &route
->source
);
3309 nla_put(msg
, RTA_SRC
, alen
, &route
->source
);
3312 if (route
->metric
> 0)
3313 nla_put_u32(msg
, RTA_PRIORITY
, route
->metric
);
3316 nla_put(msg
, RTA_GATEWAY
, alen
, &route
->nexthop
);
3319 nla_put_u32(msg
, RTA_OIF
, dev
->ifindex
);
3322 nla_put_u32(msg
, RTA_TABLE
, table
);
3324 if (route
->flags
& DEVROUTE_MTU
) {
3325 struct nlattr
*metrics
;
3327 if (!(metrics
= nla_nest_start(msg
, RTA_METRICS
)))
3328 goto nla_put_failure
;
3330 nla_put_u32(msg
, RTAX_MTU
, route
->mtu
);
3332 nla_nest_end(msg
, metrics
);
3335 return system_rtnl_call(msg
);
3342 int system_add_route(struct device
*dev
, struct device_route
*route
)
3344 return system_rt(dev
, route
, RTM_NEWROUTE
);
3347 int system_del_route(struct device
*dev
, struct device_route
*route
)
3349 return system_rt(dev
, route
, RTM_DELROUTE
);
3352 int system_flush_routes(void)
3354 const char *names
[] = { "ipv4", "ipv6" };
3358 for (i
= 0; i
< ARRAY_SIZE(names
); i
++) {
3359 snprintf(dev_buf
, sizeof(dev_buf
), "%s/sys/net/%s/route/flush", proc_path
, names
[i
]);
3360 fd
= open(dev_buf
, O_WRONLY
);
3364 if (write(fd
, "-1", 2)) {}
3370 bool system_resolve_rt_type(const char *type
, unsigned int *id
)
3372 return system_rtn_aton(type
, id
);
3375 bool system_resolve_rt_proto(const char *type
, unsigned int *id
)
3379 unsigned int n
, proto
= 256;
3380 n
= strtoul(type
, &e
, 0);
3381 if (!*e
&& e
!= type
)
3383 else if (!strcmp(type
, "unspec"))
3384 proto
= RTPROT_UNSPEC
;
3385 else if (!strcmp(type
, "kernel"))
3386 proto
= RTPROT_KERNEL
;
3387 else if (!strcmp(type
, "boot"))
3388 proto
= RTPROT_BOOT
;
3389 else if (!strcmp(type
, "static"))
3390 proto
= RTPROT_STATIC
;
3391 else if ((f
= fopen("/etc/iproute2/rt_protos", "r")) != NULL
) {
3392 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
) {
3393 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
3396 n
= strtoul(e
, NULL
, 10);
3397 e
= strtok(NULL
, " \t\n");
3399 if (e
&& !strcmp(e
, type
)) {
3414 bool system_resolve_rt_table(const char *name
, unsigned int *id
)
3418 unsigned int n
, table
= RT_TABLE_UNSPEC
;
3420 /* first try to parse table as number */
3421 if ((n
= strtoul(name
, &e
, 0)) > 0 && !*e
)
3424 /* handle well known aliases */
3425 else if (!strcmp(name
, "default"))
3426 table
= RT_TABLE_DEFAULT
;
3427 else if (!strcmp(name
, "main"))
3428 table
= RT_TABLE_MAIN
;
3429 else if (!strcmp(name
, "local"))
3430 table
= RT_TABLE_LOCAL
;
3432 /* try to look up name in /etc/iproute2/rt_tables */
3433 else if ((f
= fopen("/etc/iproute2/rt_tables", "r")) != NULL
)
3435 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
)
3437 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
3440 n
= strtoul(e
, NULL
, 10);
3441 e
= strtok(NULL
, " \t\n");
3443 if (e
&& !strcmp(e
, name
))
3453 if (table
== RT_TABLE_UNSPEC
)
3460 bool system_is_default_rt_table(unsigned int id
)
3462 return (id
== RT_TABLE_MAIN
);
3465 bool system_resolve_rpfilter(const char *filter
, unsigned int *id
)
3470 if (!strcmp(filter
, "strict"))
3472 else if (!strcmp(filter
, "loose"))
3475 n
= strtoul(filter
, &e
, 0);
3476 if (*e
|| e
== filter
|| n
> 2)
3484 static int system_iprule(struct iprule
*rule
, int cmd
)
3486 int alen
= ((rule
->flags
& IPRULE_FAMILY
) == IPRULE_INET4
) ? 4 : 16;
3489 struct rtmsg rtm
= {
3490 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
3491 .rtm_protocol
= RTPROT_STATIC
,
3492 .rtm_scope
= RT_SCOPE_UNIVERSE
,
3493 .rtm_table
= RT_TABLE_UNSPEC
,
3494 .rtm_type
= RTN_UNSPEC
,
3498 if (cmd
== RTM_NEWRULE
)
3499 rtm
.rtm_type
= RTN_UNICAST
;
3502 rtm
.rtm_flags
|= FIB_RULE_INVERT
;
3504 if (rule
->flags
& IPRULE_SRC
)
3505 rtm
.rtm_src_len
= rule
->src_mask
;
3507 if (rule
->flags
& IPRULE_DEST
)
3508 rtm
.rtm_dst_len
= rule
->dest_mask
;
3510 if (rule
->flags
& IPRULE_TOS
)
3511 rtm
.rtm_tos
= rule
->tos
;
3513 if (rule
->flags
& IPRULE_LOOKUP
) {
3514 if (rule
->lookup
< 256)
3515 rtm
.rtm_table
= rule
->lookup
;
3518 if (rule
->flags
& IPRULE_ACTION
)
3519 rtm
.rtm_type
= rule
->action
;
3520 else if (rule
->flags
& IPRULE_GOTO
)
3521 rtm
.rtm_type
= FR_ACT_GOTO
;
3522 else if (!(rule
->flags
& (IPRULE_LOOKUP
| IPRULE_ACTION
| IPRULE_GOTO
)))
3523 rtm
.rtm_type
= FR_ACT_NOP
;
3525 msg
= nlmsg_alloc_simple(cmd
, NLM_F_REQUEST
);
3530 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
3532 if (rule
->flags
& IPRULE_IN
)
3533 nla_put(msg
, FRA_IFNAME
, strlen(rule
->in_dev
) + 1, rule
->in_dev
);
3535 if (rule
->flags
& IPRULE_OUT
)
3536 nla_put(msg
, FRA_OIFNAME
, strlen(rule
->out_dev
) + 1, rule
->out_dev
);
3538 if (rule
->flags
& IPRULE_SRC
)
3539 nla_put(msg
, FRA_SRC
, alen
, &rule
->src_addr
);
3541 if (rule
->flags
& IPRULE_DEST
)
3542 nla_put(msg
, FRA_DST
, alen
, &rule
->dest_addr
);
3544 if (rule
->flags
& IPRULE_PRIORITY
)
3545 nla_put_u32(msg
, FRA_PRIORITY
, rule
->priority
);
3546 else if (cmd
== RTM_NEWRULE
)
3547 nla_put_u32(msg
, FRA_PRIORITY
, rule
->order
);
3549 if (rule
->flags
& IPRULE_FWMARK
)
3550 nla_put_u32(msg
, FRA_FWMARK
, rule
->fwmark
);
3552 if (rule
->flags
& IPRULE_FWMASK
)
3553 nla_put_u32(msg
, FRA_FWMASK
, rule
->fwmask
);
3555 if (rule
->flags
& IPRULE_LOOKUP
) {
3556 if (rule
->lookup
>= 256)
3557 nla_put_u32(msg
, FRA_TABLE
, rule
->lookup
);
3560 if (rule
->flags
& IPRULE_SUP_PREFIXLEN
)
3561 nla_put_u32(msg
, FRA_SUPPRESS_PREFIXLEN
, rule
->sup_prefixlen
);
3563 if (rule
->flags
& IPRULE_UIDRANGE
) {
3564 struct fib_rule_uid_range uidrange
= {
3565 .start
= rule
->uidrange_start
,
3566 .end
= rule
->uidrange_end
3569 nla_put(msg
, FRA_UID_RANGE
, sizeof(uidrange
), &uidrange
);
3572 if (rule
->flags
& IPRULE_GOTO
)
3573 nla_put_u32(msg
, FRA_GOTO
, rule
->gotoid
);
3575 return system_rtnl_call(msg
);
3578 int system_add_iprule(struct iprule
*rule
)
3580 return system_iprule(rule
, RTM_NEWRULE
);
3583 int system_del_iprule(struct iprule
*rule
)
3585 return system_iprule(rule
, RTM_DELRULE
);
3588 int system_flush_iprules(void)
3593 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET
);
3594 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET6
);
3596 memset(&rule
, 0, sizeof(rule
));
3599 rule
.flags
= IPRULE_INET4
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
3602 rule
.lookup
= RT_TABLE_LOCAL
;
3603 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3605 rule
.priority
= 32766;
3606 rule
.lookup
= RT_TABLE_MAIN
;
3607 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3609 rule
.priority
= 32767;
3610 rule
.lookup
= RT_TABLE_DEFAULT
;
3611 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3614 rule
.flags
= IPRULE_INET6
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
3617 rule
.lookup
= RT_TABLE_LOCAL
;
3618 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3620 rule
.priority
= 32766;
3621 rule
.lookup
= RT_TABLE_MAIN
;
3622 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
3627 bool system_resolve_iprule_action(const char *action
, unsigned int *id
)
3629 return system_rtn_aton(action
, id
);
3632 time_t system_get_rtime(void)
3637 if (clock_gettime(CLOCK_MONOTONIC
, &ts
) == 0)
3640 if (gettimeofday(&tv
, NULL
) == 0)
3647 #define IP_DF 0x4000
3650 static int tunnel_ioctl(const char *name
, int cmd
, void *p
)
3654 memset(&ifr
, 0, sizeof(ifr
));
3655 strncpy(ifr
.ifr_name
, name
, sizeof(ifr
.ifr_name
) - 1);
3656 ifr
.ifr_ifru
.ifru_data
= p
;
3657 return ioctl(sock_ioctl
, cmd
, &ifr
);
3660 #ifdef IFLA_IPTUN_MAX
3661 static int system_add_ip6_tunnel(const char *name
, const unsigned int link
,
3662 struct blob_attr
**tb
)
3664 struct nl_msg
*nlm
= nlmsg_alloc_simple(RTM_NEWLINK
,
3665 NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3666 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
};
3667 struct blob_attr
*cur
;
3668 int ret
= 0, ttl
= 0;
3673 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3674 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3677 nla_put_u32(nlm
, IFLA_LINK
, link
);
3679 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3685 nla_put_string(nlm
, IFLA_INFO_KIND
, "ip6tnl");
3686 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3693 nla_put_u32(nlm
, IFLA_IPTUN_LINK
, link
);
3695 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3696 ttl
= blobmsg_get_u32(cur
);
3698 nla_put_u8(nlm
, IFLA_IPTUN_PROTO
, IPPROTO_IPIP
);
3699 nla_put_u8(nlm
, IFLA_IPTUN_TTL
, (ttl
) ? ttl
: 64);
3701 struct in6_addr in6buf
;
3702 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3703 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3707 nla_put(nlm
, IFLA_IPTUN_LOCAL
, sizeof(in6buf
), &in6buf
);
3710 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3711 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3715 nla_put(nlm
, IFLA_IPTUN_REMOTE
, sizeof(in6buf
), &in6buf
);
3718 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3719 struct blob_attr
*tb_data
[__IPIP6_DATA_ATTR_MAX
];
3720 uint32_t tun_flags
= IP6_TNL_F_IGN_ENCAP_LIMIT
;
3722 blobmsg_parse(ipip6_data_attr_list
.params
, __IPIP6_DATA_ATTR_MAX
, tb_data
,
3723 blobmsg_data(cur
), blobmsg_len(cur
));
3725 if ((cur
= tb_data
[IPIP6_DATA_ENCAPLIMIT
])) {
3726 char *str
= blobmsg_get_string(cur
);
3728 if (strcmp(str
, "ignore")) {
3730 unsigned encap_limit
= strtoul(str
, &e
, 0);
3732 if (e
== str
|| *e
|| encap_limit
> 255) {
3737 nla_put_u8(nlm
, IFLA_IPTUN_ENCAP_LIMIT
, encap_limit
);
3738 tun_flags
&= ~IP6_TNL_F_IGN_ENCAP_LIMIT
;
3742 #ifdef IFLA_IPTUN_FMR_MAX
3743 if ((cur
= tb_data
[IPIP6_DATA_FMRS
])) {
3744 struct blob_attr
*rcur
;
3745 unsigned rrem
, fmrcnt
= 0;
3746 struct nlattr
*fmrs
= nla_nest_start(nlm
, IFLA_IPTUN_FMRS
);
3753 blobmsg_for_each_attr(rcur
, cur
, rrem
) {
3754 struct blob_attr
*tb_fmr
[__FMR_DATA_ATTR_MAX
], *tb_cur
;
3755 struct in6_addr ip6prefix
;
3756 struct in_addr ip4prefix
;
3757 unsigned ip4len
, ip6len
, ealen
, offset
;
3759 blobmsg_parse(fmr_data_attr_list
.params
, __FMR_DATA_ATTR_MAX
, tb_fmr
,
3760 blobmsg_data(rcur
), blobmsg_len(rcur
));
3762 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX6
]) ||
3763 !parse_ip_and_netmask(AF_INET6
,
3764 blobmsg_data(tb_cur
), &ip6prefix
,
3770 if (!(tb_cur
= tb_fmr
[FMR_DATA_PREFIX4
]) ||
3771 !parse_ip_and_netmask(AF_INET
,
3772 blobmsg_data(tb_cur
), &ip4prefix
,
3778 if (!(tb_cur
= tb_fmr
[FMR_DATA_EALEN
])) {
3782 ealen
= blobmsg_get_u32(tb_cur
);
3784 if (!(tb_cur
= tb_fmr
[FMR_DATA_OFFSET
])) {
3788 offset
= blobmsg_get_u32(tb_cur
);
3790 struct nlattr
*rule
= nla_nest_start(nlm
, ++fmrcnt
);
3796 nla_put(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX
, sizeof(ip6prefix
), &ip6prefix
);
3797 nla_put(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX
, sizeof(ip4prefix
), &ip4prefix
);
3798 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX_LEN
, ip6len
);
3799 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX_LEN
, ip4len
);
3800 nla_put_u8(nlm
, IFLA_IPTUN_FMR_EA_LEN
, ealen
);
3801 nla_put_u8(nlm
, IFLA_IPTUN_FMR_OFFSET
, offset
);
3803 nla_nest_end(nlm
, rule
);
3806 nla_nest_end(nlm
, fmrs
);
3810 nla_put_u32(nlm
, IFLA_IPTUN_FLAGS
, tun_flags
);
3813 nla_nest_end(nlm
, infodata
);
3814 nla_nest_end(nlm
, linkinfo
);
3816 return system_rtnl_call(nlm
);
3824 #ifdef IFLA_IPTUN_MAX
3825 #define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
3826 static int system_add_gre_tunnel(const char *name
, const char *kind
,
3827 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
3830 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
3831 struct blob_attr
*cur
;
3832 uint32_t ikey
= 0, okey
= 0, flowinfo
= 0, flags6
= IP6_TNL_F_IGN_ENCAP_LIMIT
;
3833 uint16_t iflags
= 0, oflags
= 0;
3835 int ret
= 0, ttl
= 0;
3836 unsigned encap_limit
= 0;
3838 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
3842 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
3843 nla_put_string(nlm
, IFLA_IFNAME
, name
);
3845 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
3851 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
3852 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
3859 nla_put_u32(nlm
, IFLA_GRE_LINK
, link
);
3861 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
3862 ttl
= blobmsg_get_u32(cur
);
3864 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
3865 char *str
= blobmsg_get_string(cur
);
3866 if (strcmp(str
, "inherit")) {
3869 if (!system_tos_aton(str
, &uval
)) {
3875 flowinfo
|= htonl(uval
<< 20) & IP6_FLOWINFO_TCLASS
;
3880 flags6
|= IP6_TNL_F_USE_ORIG_TCLASS
;
3886 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
3887 struct blob_attr
*tb_data
[__GRE_DATA_ATTR_MAX
];
3889 blobmsg_parse(gre_data_attr_list
.params
, __GRE_DATA_ATTR_MAX
, tb_data
,
3890 blobmsg_data(cur
), blobmsg_len(cur
));
3892 if ((cur
= tb_data
[GRE_DATA_IKEY
])) {
3893 if ((ikey
= blobmsg_get_u32(cur
)))
3897 if ((cur
= tb_data
[GRE_DATA_OKEY
])) {
3898 if ((okey
= blobmsg_get_u32(cur
)))
3902 if ((cur
= tb_data
[GRE_DATA_ICSUM
])) {
3903 if (blobmsg_get_bool(cur
))
3907 if ((cur
= tb_data
[GRE_DATA_OCSUM
])) {
3908 if (blobmsg_get_bool(cur
))
3912 if ((cur
= tb_data
[GRE_DATA_ISEQNO
])) {
3913 if (blobmsg_get_bool(cur
))
3917 if ((cur
= tb_data
[GRE_DATA_OSEQNO
])) {
3918 if (blobmsg_get_bool(cur
))
3922 if ((cur
= tb_data
[GRE_DATA_ENCAPLIMIT
])) {
3923 char *str
= blobmsg_get_string(cur
);
3925 if (strcmp(str
, "ignore")) {
3928 encap_limit
= strtoul(str
, &e
, 0);
3930 if (e
== str
|| *e
|| encap_limit
> 255) {
3935 flags6
&= ~IP6_TNL_F_IGN_ENCAP_LIMIT
;
3941 struct in6_addr in6buf
;
3942 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3943 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3947 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(in6buf
), &in6buf
);
3950 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3951 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
3955 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(in6buf
), &in6buf
);
3958 if (!(flags6
& IP6_TNL_F_IGN_ENCAP_LIMIT
))
3959 nla_put_u8(nlm
, IFLA_GRE_ENCAP_LIMIT
, encap_limit
);
3962 nla_put_u32(nlm
, IFLA_GRE_FLOWINFO
, flowinfo
);
3965 nla_put_u32(nlm
, IFLA_GRE_FLAGS
, flags6
);
3970 struct in_addr inbuf
;
3973 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
3974 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3978 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(inbuf
), &inbuf
);
3981 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
3982 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
3986 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(inbuf
), &inbuf
);
3988 if (IN_MULTICAST(ntohl(inbuf
.s_addr
))) {
3990 okey
= inbuf
.s_addr
;
3995 ikey
= inbuf
.s_addr
;
4001 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
4002 set_df
= blobmsg_get_bool(cur
);
4005 /* ttl != 0 and nopmtudisc are incompatible */
4013 nla_put_u8(nlm
, IFLA_GRE_PMTUDISC
, set_df
? 1 : 0);
4015 nla_put_u8(nlm
, IFLA_GRE_TOS
, tos
);
4019 nla_put_u8(nlm
, IFLA_GRE_TTL
, ttl
);
4022 nla_put_u16(nlm
, IFLA_GRE_OFLAGS
, oflags
);
4025 nla_put_u16(nlm
, IFLA_GRE_IFLAGS
, iflags
);
4028 nla_put_u32(nlm
, IFLA_GRE_OKEY
, htonl(okey
));
4031 nla_put_u32(nlm
, IFLA_GRE_IKEY
, htonl(ikey
));
4033 nla_nest_end(nlm
, infodata
);
4034 nla_nest_end(nlm
, linkinfo
);
4036 return system_rtnl_call(nlm
);
4045 static int system_add_vti_tunnel(const char *name
, const char *kind
,
4046 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
4049 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
4050 struct blob_attr
*cur
;
4053 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
4057 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
4058 nla_put_string(nlm
, IFLA_IFNAME
, name
);
4060 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
4066 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
4067 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
4074 nla_put_u32(nlm
, IFLA_VTI_LINK
, link
);
4077 struct in6_addr in6buf
;
4078 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
4079 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
4083 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(in6buf
), &in6buf
);
4086 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
4087 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
4091 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(in6buf
), &in6buf
);
4095 struct in_addr inbuf
;
4097 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
4098 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
4102 nla_put(nlm
, IFLA_VTI_LOCAL
, sizeof(inbuf
), &inbuf
);
4105 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
4106 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
4110 nla_put(nlm
, IFLA_VTI_REMOTE
, sizeof(inbuf
), &inbuf
);
4115 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
4116 struct blob_attr
*tb_data
[__VTI_DATA_ATTR_MAX
];
4117 uint32_t ikey
= 0, okey
= 0;
4119 blobmsg_parse(vti_data_attr_list
.params
, __VTI_DATA_ATTR_MAX
, tb_data
,
4120 blobmsg_data(cur
), blobmsg_len(cur
));
4122 if ((cur
= tb_data
[VTI_DATA_IKEY
])) {
4123 if ((ikey
= blobmsg_get_u32(cur
)))
4124 nla_put_u32(nlm
, IFLA_VTI_IKEY
, htonl(ikey
));
4127 if ((cur
= tb_data
[VTI_DATA_OKEY
])) {
4128 if ((okey
= blobmsg_get_u32(cur
)))
4129 nla_put_u32(nlm
, IFLA_VTI_OKEY
, htonl(okey
));
4133 nla_nest_end(nlm
, infodata
);
4134 nla_nest_end(nlm
, linkinfo
);
4136 return system_rtnl_call(nlm
);
4144 #ifdef IFLA_XFRM_MAX
4145 static int system_add_xfrm_tunnel(const char *name
, const char *kind
,
4146 const unsigned int link
, struct blob_attr
**tb
)
4149 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
4150 struct blob_attr
*cur
;
4153 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
4157 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
4158 nla_put_string(nlm
, IFLA_IFNAME
, name
);
4160 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
4166 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
4167 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
4174 nla_put_u32(nlm
, IFLA_XFRM_LINK
, link
);
4176 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
4177 struct blob_attr
*tb_data
[__XFRM_DATA_ATTR_MAX
];
4180 blobmsg_parse(xfrm_data_attr_list
.params
, __XFRM_DATA_ATTR_MAX
, tb_data
,
4181 blobmsg_data(cur
), blobmsg_len(cur
));
4183 if ((cur
= tb_data
[XFRM_DATA_IF_ID
])) {
4184 if ((if_id
= blobmsg_get_u32(cur
)))
4185 nla_put_u32(nlm
, IFLA_XFRM_IF_ID
, if_id
);
4190 nla_nest_end(nlm
, infodata
);
4191 nla_nest_end(nlm
, linkinfo
);
4193 return system_rtnl_call(nlm
);
4201 #ifdef IFLA_VXLAN_MAX
4202 static void system_vxlan_map_bool_attr(struct nl_msg
*msg
, struct blob_attr
**tb_data
, int attrtype
, int vxlandatatype
, bool invert
) {
4203 struct blob_attr
*cur
;
4204 if ((cur
= tb_data
[vxlandatatype
])) {
4205 bool val
= blobmsg_get_bool(cur
);
4209 if ((attrtype
== IFLA_VXLAN_GBP
) && val
)
4210 nla_put_flag(msg
, attrtype
);
4212 nla_put_u8(msg
, attrtype
, val
);
4217 static int system_add_vxlan(const char *name
, const unsigned int link
, struct blob_attr
**tb
, bool v6
)
4219 struct blob_attr
*tb_data
[__VXLAN_DATA_ATTR_MAX
];
4221 struct nlattr
*linkinfo
, *data
;
4222 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
4223 struct blob_attr
*cur
;
4226 if ((cur
= tb
[TUNNEL_ATTR_DATA
]))
4227 blobmsg_parse(vxlan_data_attr_list
.params
, __VXLAN_DATA_ATTR_MAX
, tb_data
,
4228 blobmsg_data(cur
), blobmsg_len(cur
));
4232 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
4237 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
4239 nla_put_string(msg
, IFLA_IFNAME
, name
);
4241 if ((cur
= tb_data
[VXLAN_DATA_ATTR_MACADDR
])) {
4242 struct ether_addr
*ea
= ether_aton(blobmsg_get_string(cur
));
4248 nla_put(msg
, IFLA_ADDRESS
, ETH_ALEN
, ea
);
4251 if ((cur
= tb
[TUNNEL_ATTR_MTU
])) {
4252 uint32_t mtu
= blobmsg_get_u32(cur
);
4253 nla_put_u32(msg
, IFLA_MTU
, mtu
);
4256 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
))) {
4261 nla_put_string(msg
, IFLA_INFO_KIND
, "vxlan");
4263 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
))) {
4269 nla_put_u32(msg
, IFLA_VXLAN_LINK
, link
);
4271 if ((cur
= tb_data
[VXLAN_DATA_ATTR_ID
])) {
4272 uint32_t id
= blobmsg_get_u32(cur
);
4273 if (id
>= (1u << 24) - 1) {
4278 nla_put_u32(msg
, IFLA_VXLAN_ID
, id
);
4282 struct in6_addr in6buf
;
4283 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
4284 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
4288 nla_put(msg
, IFLA_VXLAN_LOCAL6
, sizeof(in6buf
), &in6buf
);
4291 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
4292 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
4296 nla_put(msg
, IFLA_VXLAN_GROUP6
, sizeof(in6buf
), &in6buf
);
4299 struct in_addr inbuf
;
4301 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
4302 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
4306 nla_put(msg
, IFLA_VXLAN_LOCAL
, sizeof(inbuf
), &inbuf
);
4309 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
4310 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
4314 nla_put(msg
, IFLA_VXLAN_GROUP
, sizeof(inbuf
), &inbuf
);
4318 uint32_t port
= 4789;
4319 if ((cur
= tb_data
[VXLAN_DATA_ATTR_PORT
])) {
4320 port
= blobmsg_get_u32(cur
);
4321 if (port
< 1 || port
> 65535) {
4326 nla_put_u16(msg
, IFLA_VXLAN_PORT
, htons(port
));
4328 if ((cur
= tb_data
[VXLAN_DATA_ATTR_SRCPORTMIN
])) {
4329 struct ifla_vxlan_port_range srcports
= {0,0};
4331 uint32_t low
= blobmsg_get_u32(cur
);
4332 if (low
< 1 || low
> 65535 - 1) {
4337 srcports
.low
= htons((uint16_t) low
);
4338 srcports
.high
= htons((uint16_t) (low
+1));
4340 if ((cur
= tb_data
[VXLAN_DATA_ATTR_SRCPORTMAX
])) {
4341 uint32_t high
= blobmsg_get_u32(cur
);
4342 if (high
< 1 || high
> 65535) {
4348 srcports
.high
= htons((uint16_t) high
);
4351 nla_put(msg
, IFLA_VXLAN_PORT_RANGE
, sizeof(srcports
), &srcports
);
4354 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_CSUM
, VXLAN_DATA_ATTR_TXCSUM
, false);
4355 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_ZERO_CSUM6_RX
, VXLAN_DATA_ATTR_RXCSUM
, true);
4356 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_UDP_ZERO_CSUM6_TX
, VXLAN_DATA_ATTR_TXCSUM
, true);
4357 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_LEARNING
, VXLAN_DATA_ATTR_LEARNING
, false);
4358 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_RSC
, VXLAN_DATA_ATTR_RSC
, false);
4359 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_PROXY
, VXLAN_DATA_ATTR_PROXY
, false);
4360 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_L2MISS
, VXLAN_DATA_ATTR_L2MISS
, false);
4361 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_L3MISS
, VXLAN_DATA_ATTR_L3MISS
, false);
4362 system_vxlan_map_bool_attr(msg
, tb_data
, IFLA_VXLAN_GBP
, VXLAN_DATA_ATTR_GBP
, false);
4364 if ((cur
= tb_data
[VXLAN_DATA_ATTR_AGEING
])) {
4365 uint32_t ageing
= blobmsg_get_u32(cur
);
4366 nla_put_u32(msg
, IFLA_VXLAN_AGEING
, ageing
);
4369 if ((cur
= tb_data
[VXLAN_DATA_ATTR_LIMIT
])) {
4370 uint32_t maxaddress
= blobmsg_get_u32(cur
);
4371 nla_put_u32(msg
, IFLA_VXLAN_LIMIT
, maxaddress
);
4374 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
4375 char *str
= blobmsg_get_string(cur
);
4378 if (strcmp(str
, "inherit")) {
4379 if (!system_tos_aton(str
, &tos
)) {
4385 nla_put_u8(msg
, IFLA_VXLAN_TOS
, tos
);
4388 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
4389 uint32_t ttl
= blobmsg_get_u32(cur
);
4390 if (ttl
< 1 || ttl
> 255) {
4395 nla_put_u8(msg
, IFLA_VXLAN_TTL
, ttl
);
4398 nla_nest_end(msg
, data
);
4399 nla_nest_end(msg
, linkinfo
);
4401 ret
= system_rtnl_call(msg
);
4403 D(SYSTEM
, "Error adding vxlan '%s': %d\n", name
, ret
);
4413 static int system_add_sit_tunnel(const char *name
, const unsigned int link
, struct blob_attr
**tb
)
4415 struct blob_attr
*cur
;
4418 if (system_add_proto_tunnel(name
, IPPROTO_IPV6
, link
, tb
) < 0)
4422 if ((cur
= tb
[TUNNEL_ATTR_DATA
])) {
4423 struct blob_attr
*tb_data
[__SIXRD_DATA_ATTR_MAX
];
4425 struct ip_tunnel_6rd p6
;
4427 blobmsg_parse(sixrd_data_attr_list
.params
, __SIXRD_DATA_ATTR_MAX
, tb_data
,
4428 blobmsg_data(cur
), blobmsg_len(cur
));
4430 memset(&p6
, 0, sizeof(p6
));
4432 if ((cur
= tb_data
[SIXRD_DATA_PREFIX
])) {
4433 if (!parse_ip_and_netmask(AF_INET6
, blobmsg_data(cur
),
4434 &p6
.prefix
, &mask
) || mask
> 128) {
4439 p6
.prefixlen
= mask
;
4442 if ((cur
= tb_data
[SIXRD_DATA_RELAY_PREFIX
])) {
4443 if (!parse_ip_and_netmask(AF_INET
, blobmsg_data(cur
),
4444 &p6
.relay_prefix
, &mask
) || mask
> 32) {
4449 p6
.relay_prefixlen
= mask
;
4452 if (tunnel_ioctl(name
, SIOCADD6RD
, &p6
) < 0) {
4462 system_link_del(name
);
4466 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
, const unsigned int link
, struct blob_attr
**tb
)
4468 struct blob_attr
*cur
;
4470 struct ip_tunnel_parm p
= {
4479 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
]) &&
4480 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.saddr
) < 1)
4483 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
]) &&
4484 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.daddr
) < 1)
4487 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
4488 set_df
= blobmsg_get_bool(cur
);
4490 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
4491 p
.iph
.ttl
= blobmsg_get_u32(cur
);
4493 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
4494 char *str
= blobmsg_get_string(cur
);
4495 if (strcmp(str
, "inherit")) {
4498 if (!system_tos_aton(str
, &uval
))
4506 p
.iph
.frag_off
= set_df
? htons(IP_DF
) : 0;
4507 /* ttl !=0 and nopmtudisc are incompatible */
4508 if (p
.iph
.ttl
&& p
.iph
.frag_off
== 0)
4511 strncpy(p
.name
, name
, sizeof(p
.name
) - 1);
4513 switch (p
.iph
.protocol
) {
4515 return tunnel_ioctl("tunl0", SIOCADDTUNNEL
, &p
);
4517 return tunnel_ioctl("sit0", SIOCADDTUNNEL
, &p
);
4524 int system_del_ip_tunnel(const struct device
*dev
)
4526 return system_link_del(dev
->ifname
);
4529 int system_update_ipv6_mtu(struct device
*dev
, int mtu
)
4535 fd
= open(dev_sysctl_path("ipv6/conf", dev
->ifname
, "mtu"), O_RDWR
);
4540 ssize_t len
= read(fd
, buf
, sizeof(buf
) - 1);
4547 if (write(fd
, buf
, snprintf(buf
, sizeof(buf
), "%i", mtu
)) > 0)
4556 int system_add_ip_tunnel(const struct device
*dev
, struct blob_attr
*attr
)
4558 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
4559 struct blob_attr
*cur
;
4562 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
4563 blob_data(attr
), blob_len(attr
));
4565 system_link_del(dev
->ifname
);
4567 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
4569 str
= blobmsg_data(cur
);
4571 unsigned int ttl
= 0;
4572 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
4573 ttl
= blobmsg_get_u32(cur
);
4578 unsigned int link
= 0;
4579 if ((cur
= tb
[TUNNEL_ATTR_LINK
])) {
4580 struct interface
*iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
4584 if (iface
->l3_dev
.dev
)
4585 link
= iface
->l3_dev
.dev
->ifindex
;
4588 if (!strcmp(str
, "sit"))
4589 return system_add_sit_tunnel(dev
->ifname
, link
, tb
);
4590 #ifdef IFLA_IPTUN_MAX
4591 else if (!strcmp(str
, "ipip6")) {
4592 return system_add_ip6_tunnel(dev
->ifname
, link
, tb
);
4593 } else if (!strcmp(str
, "greip")) {
4594 return system_add_gre_tunnel(dev
->ifname
, "gre", link
, tb
, false);
4595 } else if (!strcmp(str
, "gretapip")) {
4596 return system_add_gre_tunnel(dev
->ifname
, "gretap", link
, tb
, false);
4597 } else if (!strcmp(str
, "greip6")) {
4598 return system_add_gre_tunnel(dev
->ifname
, "ip6gre", link
, tb
, true);
4599 } else if (!strcmp(str
, "gretapip6")) {
4600 return system_add_gre_tunnel(dev
->ifname
, "ip6gretap", link
, tb
, true);
4602 } else if (!strcmp(str
, "vtiip")) {
4603 return system_add_vti_tunnel(dev
->ifname
, "vti", link
, tb
, false);
4604 } else if (!strcmp(str
, "vtiip6")) {
4605 return system_add_vti_tunnel(dev
->ifname
, "vti6", link
, tb
, true);
4607 #ifdef IFLA_XFRM_MAX
4608 } else if (!strcmp(str
, "xfrm")) {
4609 return system_add_xfrm_tunnel(dev
->ifname
, "xfrm", link
, tb
);
4611 #ifdef IFLA_VXLAN_MAX
4612 } else if(!strcmp(str
, "vxlan")) {
4613 return system_add_vxlan(dev
->ifname
, link
, tb
, false);
4614 } else if(!strcmp(str
, "vxlan6")) {
4615 return system_add_vxlan(dev
->ifname
, link
, tb
, true);
4618 } else if (!strcmp(str
, "ipip")) {
4619 return system_add_proto_tunnel(dev
->ifname
, IPPROTO_IPIP
, link
, tb
);