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>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2
10 * as published by the Free Software Foundation
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
19 #include <sys/socket.h>
20 #include <sys/ioctl.h>
22 #include <sys/syscall.h>
25 #include <net/if_arp.h>
27 #include <arpa/inet.h>
28 #include <netinet/in.h>
30 #include <linux/rtnetlink.h>
31 #include <linux/sockios.h>
33 #include <linux/if_addr.h>
34 #include <linux/if_link.h>
35 #include <linux/if_vlan.h>
36 #include <linux/if_bridge.h>
37 #include <linux/if_tunnel.h>
38 #include <linux/ip6_tunnel.h>
39 #include <linux/ethtool.h>
40 #include <linux/fib_rules.h>
41 #include <linux/version.h>
43 #ifndef RTN_FAILED_POLICY
44 #define RTN_FAILED_POLICY 12
47 #ifndef RT_TABLE_PRELOCAL
48 #define RT_TABLE_PRELOCAL 128
51 #ifndef IFA_F_NOPREFIXROUTE
52 #define IFA_F_NOPREFIXROUTE 0x200
56 #define IFA_FLAGS (IFA_MULTICAST + 1)
66 #include <netlink/msg.h>
67 #include <netlink/attr.h>
68 #include <netlink/socket.h>
69 #include <libubox/uloop.h>
76 struct uloop_fd uloop
;
81 static int sock_ioctl
= -1;
82 static struct nl_sock
*sock_rtnl
= NULL
;
84 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
);
85 static void handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
);
87 static char dev_buf
[256];
90 handler_nl_event(struct uloop_fd
*u
, unsigned int events
)
92 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
94 socklen_t errlen
= sizeof(err
);
97 nl_recvmsgs_default(ev
->sock
);
101 if (getsockopt(u
->fd
, SOL_SOCKET
, SO_ERROR
, (void *)&err
, &errlen
))
106 // Increase rx buffer size on netlink socket
108 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
111 // Request full dump since some info got dropped
112 struct rtgenmsg msg
= { .rtgen_family
= AF_UNSPEC
};
113 nl_send_simple(ev
->sock
, RTM_GETLINK
, NLM_F_DUMP
, &msg
, sizeof(msg
));
123 uloop_fd_delete(&ev
->uloop
);
127 static struct nl_sock
*
128 create_socket(int protocol
, int groups
)
130 struct nl_sock
*sock
;
132 sock
= nl_socket_alloc();
137 nl_join_groups(sock
, groups
);
139 if (nl_connect(sock
, protocol
))
146 create_raw_event_socket(struct event_socket
*ev
, int protocol
, int groups
,
147 uloop_fd_handler cb
, int flags
)
149 ev
->sock
= create_socket(protocol
, groups
);
153 ev
->uloop
.fd
= nl_socket_get_fd(ev
->sock
);
155 if (uloop_fd_add(&ev
->uloop
, ULOOP_READ
|flags
))
162 create_event_socket(struct event_socket
*ev
, int protocol
,
163 int (*cb
)(struct nl_msg
*msg
, void *arg
))
165 if (!create_raw_event_socket(ev
, protocol
, 0, handler_nl_event
, ULOOP_ERROR_CB
))
168 // Install the valid custom callback handler
169 nl_socket_modify_cb(ev
->sock
, NL_CB_VALID
, NL_CB_CUSTOM
, cb
, NULL
);
171 // Disable sequence number checking on event sockets
172 nl_socket_disable_seq_check(ev
->sock
);
174 // Increase rx buffer size to 65K on event sockets
176 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
183 system_rtn_aton(const char *src
, unsigned int *dst
)
188 if (!strcmp(src
, "local"))
190 else if (!strcmp(src
, "nat"))
192 else if (!strcmp(src
, "broadcast"))
194 else if (!strcmp(src
, "anycast"))
196 else if (!strcmp(src
, "multicast"))
198 else if (!strcmp(src
, "prohibit"))
200 else if (!strcmp(src
, "unreachable"))
202 else if (!strcmp(src
, "blackhole"))
204 else if (!strcmp(src
, "xresolve"))
206 else if (!strcmp(src
, "unicast"))
208 else if (!strcmp(src
, "throw"))
210 else if (!strcmp(src
, "failed_policy"))
211 n
= RTN_FAILED_POLICY
;
213 n
= strtoul(src
, &e
, 0);
214 if (!e
|| *e
|| e
== src
|| n
> 255)
223 system_tos_aton(const char *src
, unsigned *dst
)
227 *dst
= strtoul(src
, &e
, 16);
228 if (e
== src
|| *e
|| *dst
> 255)
234 int system_init(void)
236 static struct event_socket rtnl_event
;
237 static struct event_socket hotplug_event
;
239 sock_ioctl
= socket(AF_LOCAL
, SOCK_DGRAM
, 0);
240 system_fd_set_cloexec(sock_ioctl
);
242 // Prepare socket for routing / address control
243 sock_rtnl
= create_socket(NETLINK_ROUTE
, 0);
247 if (!create_event_socket(&rtnl_event
, NETLINK_ROUTE
, cb_rtnl_event
))
250 if (!create_raw_event_socket(&hotplug_event
, NETLINK_KOBJECT_UEVENT
, 1,
251 handle_hotplug_event
, 0))
254 // Receive network link events form kernel
255 nl_socket_add_membership(rtnl_event
.sock
, RTNLGRP_LINK
);
260 static void system_set_sysctl(const char *path
, const char *val
)
264 fd
= open(path
, O_WRONLY
);
268 if (write(fd
, val
, strlen(val
))) {}
272 static void system_set_dev_sysctl(const char *path
, const char *device
, const char *val
)
274 snprintf(dev_buf
, sizeof(dev_buf
), path
, device
);
275 system_set_sysctl(dev_buf
, val
);
278 static void system_set_disable_ipv6(struct device
*dev
, const char *val
)
280 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6", dev
->ifname
, val
);
283 static void system_set_rpfilter(struct device
*dev
, const char *val
)
285 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/rp_filter", dev
->ifname
, val
);
288 static void system_set_acceptlocal(struct device
*dev
, const char *val
)
290 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/accept_local", dev
->ifname
, val
);
293 static void system_set_igmpversion(struct device
*dev
, const char *val
)
295 system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/force_igmp_version", dev
->ifname
, val
);
298 static void system_set_mldversion(struct device
*dev
, const char *val
)
300 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/force_mld_version", dev
->ifname
, val
);
303 static void system_set_neigh4reachabletime(struct device
*dev
, const char *val
)
305 system_set_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/base_reachable_time_ms", dev
->ifname
, val
);
308 static void system_set_neigh6reachabletime(struct device
*dev
, const char *val
)
310 system_set_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/base_reachable_time_ms", dev
->ifname
, val
);
313 static int system_get_sysctl(const char *path
, char *buf
, const size_t buf_sz
)
315 int fd
= -1, ret
= -1;
317 fd
= open(path
, O_RDONLY
);
321 ssize_t len
= read(fd
, buf
, buf_sz
- 1);
335 system_get_dev_sysctl(const char *path
, const char *device
, char *buf
, const size_t buf_sz
)
337 snprintf(dev_buf
, sizeof(dev_buf
), path
, device
);
338 return system_get_sysctl(dev_buf
, buf
, buf_sz
);
341 static int system_get_disable_ipv6(struct device
*dev
, char *buf
, const size_t buf_sz
)
343 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6",
344 dev
->ifname
, buf
, buf_sz
);
347 static int system_get_rpfilter(struct device
*dev
, char *buf
, const size_t buf_sz
)
349 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/rp_filter",
350 dev
->ifname
, buf
, buf_sz
);
353 static int system_get_acceptlocal(struct device
*dev
, char *buf
, const size_t buf_sz
)
355 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/accept_local",
356 dev
->ifname
, buf
, buf_sz
);
359 static int system_get_igmpversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
361 return system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/force_igmp_version",
362 dev
->ifname
, buf
, buf_sz
);
365 static int system_get_mldversion(struct device
*dev
, char *buf
, const size_t buf_sz
)
367 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/force_mld_version",
368 dev
->ifname
, buf
, buf_sz
);
371 static int system_get_neigh4reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
373 return system_get_dev_sysctl("/proc/sys/net/ipv4/neigh/%s/base_reachable_time_ms",
374 dev
->ifname
, buf
, buf_sz
);
377 static int system_get_neigh6reachabletime(struct device
*dev
, char *buf
, const size_t buf_sz
)
379 return system_get_dev_sysctl("/proc/sys/net/ipv6/neigh/%s/base_reachable_time_ms",
380 dev
->ifname
, buf
, buf_sz
);
383 // Evaluate netlink messages
384 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
)
386 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
387 struct nlattr
*nla
[__IFLA_MAX
];
391 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
394 nlmsg_parse(nh
, sizeof(struct ifinfomsg
), nla
, __IFLA_MAX
- 1, NULL
);
395 if (!nla
[IFLA_IFNAME
])
398 struct device
*dev
= device_get(nla_data(nla
[IFLA_IFNAME
]), false);
399 if (!dev
|| dev
->type
->keep_link_status
)
402 if (!system_get_dev_sysctl("/sys/class/net/%s/carrier", dev
->ifname
, buf
, sizeof(buf
)))
403 link_state
= strtoul(buf
, NULL
, 0);
405 device_set_link(dev
, link_state
? true : false);
412 handle_hotplug_msg(char *data
, int size
)
414 const char *subsystem
= NULL
, *interface
= NULL
;
415 char *cur
, *end
, *sep
;
420 if (!strncmp(data
, "add@", 4))
422 else if (!strncmp(data
, "remove@", 7))
427 skip
= strlen(data
) + 1;
430 for (cur
= data
+ skip
; cur
< end
; cur
+= skip
) {
431 skip
= strlen(cur
) + 1;
433 sep
= strchr(cur
, '=');
438 if (!strcmp(cur
, "INTERFACE"))
440 else if (!strcmp(cur
, "SUBSYSTEM")) {
442 if (strcmp(subsystem
, "net") != 0)
445 if (subsystem
&& interface
)
451 dev
= device_get(interface
, false);
455 if (dev
->type
!= &simple_device_type
)
458 if (add
&& system_if_force_external(dev
->ifname
))
461 device_set_present(dev
, add
);
465 handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
)
467 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
468 struct sockaddr_nl nla
;
469 unsigned char *buf
= NULL
;
472 while ((size
= nl_recv(ev
->sock
, &nla
, &buf
, NULL
)) > 0) {
474 handle_hotplug_msg((char *) buf
, size
);
480 static int system_rtnl_call(struct nl_msg
*msg
)
484 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
490 return nl_wait_for_ack(sock_rtnl
);
493 int system_bridge_delbr(struct device
*bridge
)
495 return ioctl(sock_ioctl
, SIOCBRDELBR
, bridge
->ifname
);
498 static int system_bridge_if(const char *bridge
, struct device
*dev
, int cmd
, void *data
)
502 memset(&ifr
, 0, sizeof(ifr
));
504 ifr
.ifr_ifindex
= dev
->ifindex
;
507 strncpy(ifr
.ifr_name
, bridge
, sizeof(ifr
.ifr_name
));
508 return ioctl(sock_ioctl
, cmd
, &ifr
);
511 static bool system_is_bridge(const char *name
, char *buf
, int buflen
)
515 snprintf(buf
, buflen
, "/sys/devices/virtual/net/%s/bridge", name
);
516 if (stat(buf
, &st
) < 0)
522 static char *system_get_bridge(const char *name
, char *buf
, int buflen
)
528 snprintf(buf
, buflen
, "/sys/devices/virtual/net/*/brif/%s/bridge", name
);
529 if (glob(buf
, GLOB_NOSORT
, NULL
, &gl
) < 0)
533 len
= readlink(gl
.gl_pathv
[0], buf
, buflen
);
541 path
= strrchr(buf
, '/');
548 static void system_bridge_set_wireless(const char *bridge
, const char *dev
)
550 snprintf(dev_buf
, sizeof(dev_buf
),
551 "/sys/devices/virtual/net/%s/brif/%s/multicast_to_unicast",
553 system_set_sysctl(dev_buf
, "1");
556 int system_bridge_addif(struct device
*bridge
, struct device
*dev
)
561 oldbr
= system_get_bridge(dev
->ifname
, dev_buf
, sizeof(dev_buf
));
562 if (!oldbr
|| strcmp(oldbr
, bridge
->ifname
) != 0)
563 ret
= system_bridge_if(bridge
->ifname
, dev
, SIOCBRADDIF
, NULL
);
566 system_bridge_set_wireless(bridge
->ifname
, dev
->ifname
);
571 int system_bridge_delif(struct device
*bridge
, struct device
*dev
)
573 return system_bridge_if(bridge
->ifname
, dev
, SIOCBRDELIF
, NULL
);
576 int system_if_resolve(struct device
*dev
)
579 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
580 if (!ioctl(sock_ioctl
, SIOCGIFINDEX
, &ifr
))
581 return ifr
.ifr_ifindex
;
586 static int system_if_flags(const char *ifname
, unsigned add
, unsigned rem
)
590 memset(&ifr
, 0, sizeof(ifr
));
591 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
));
592 ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
);
593 ifr
.ifr_flags
|= add
;
594 ifr
.ifr_flags
&= ~rem
;
595 return ioctl(sock_ioctl
, SIOCSIFFLAGS
, &ifr
);
607 static bool check_ifaddr(struct nlmsghdr
*hdr
, int ifindex
)
609 struct ifaddrmsg
*ifa
= NLMSG_DATA(hdr
);
611 return ifa
->ifa_index
== ifindex
;
614 static bool check_route(struct nlmsghdr
*hdr
, int ifindex
)
616 struct rtmsg
*r
= NLMSG_DATA(hdr
);
617 struct nlattr
*tb
[__RTA_MAX
];
619 if (r
->rtm_protocol
== RTPROT_KERNEL
&&
620 r
->rtm_family
== AF_INET6
)
623 nlmsg_parse(hdr
, sizeof(struct rtmsg
), tb
, __RTA_MAX
- 1, NULL
);
627 return *(int *)RTA_DATA(tb
[RTA_OIF
]) == ifindex
;
630 static bool check_rule(struct nlmsghdr
*hdr
, int ifindex
)
635 static int cb_clear_event(struct nl_msg
*msg
, void *arg
)
637 struct clear_data
*clr
= arg
;
638 struct nlmsghdr
*hdr
= nlmsg_hdr(msg
);
639 bool (*cb
)(struct nlmsghdr
*, int ifindex
);
645 if (hdr
->nlmsg_type
!= RTM_NEWADDR
)
652 if (hdr
->nlmsg_type
!= RTM_NEWROUTE
)
659 if (hdr
->nlmsg_type
!= RTM_NEWRULE
)
668 if (!cb(hdr
, clr
->dev
? clr
->dev
->ifindex
: 0))
671 if (type
== RTM_DELRULE
)
672 D(SYSTEM
, "Remove a rule\n");
674 D(SYSTEM
, "Remove %s from device %s\n",
675 type
== RTM_DELADDR
? "an address" : "a route",
677 memcpy(nlmsg_hdr(clr
->msg
), hdr
, hdr
->nlmsg_len
);
678 hdr
= nlmsg_hdr(clr
->msg
);
679 hdr
->nlmsg_type
= type
;
680 hdr
->nlmsg_flags
= NLM_F_REQUEST
;
682 nl_socket_disable_auto_ack(sock_rtnl
);
683 nl_send_auto_complete(sock_rtnl
, clr
->msg
);
684 nl_socket_enable_auto_ack(sock_rtnl
);
690 cb_finish_event(struct nl_msg
*msg
, void *arg
)
698 error_handler(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
701 *pending
= err
->error
;
706 system_if_clear_entries(struct device
*dev
, int type
, int af
)
708 struct clear_data clr
;
709 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
712 .rtm_flags
= RTM_F_CLONED
,
714 int flags
= NLM_F_DUMP
;
723 clr
.size
= sizeof(struct rtgenmsg
);
726 clr
.size
= sizeof(struct rtmsg
);
735 clr
.msg
= nlmsg_alloc_simple(type
, flags
);
739 nlmsg_append(clr
.msg
, &rtm
, clr
.size
, 0);
740 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_clear_event
, &clr
);
741 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, cb_finish_event
, &pending
);
742 nl_cb_err(cb
, NL_CB_CUSTOM
, error_handler
, &pending
);
744 nl_send_auto_complete(sock_rtnl
, clr
.msg
);
746 nl_recvmsgs(sock_rtnl
, cb
);
754 * Clear bridge (membership) state and bring down device
756 void system_if_clear_state(struct device
*dev
)
758 static char buf
[256];
761 device_set_ifindex(dev
, system_if_resolve(dev
));
762 if (dev
->external
|| !dev
->ifindex
)
765 system_if_flags(dev
->ifname
, 0, IFF_UP
);
767 if (system_is_bridge(dev
->ifname
, buf
, sizeof(buf
))) {
768 D(SYSTEM
, "Delete existing bridge named '%s'\n", dev
->ifname
);
769 system_bridge_delbr(dev
);
773 bridge
= system_get_bridge(dev
->ifname
, buf
, sizeof(buf
));
775 D(SYSTEM
, "Remove device '%s' from bridge '%s'\n", dev
->ifname
, bridge
);
776 system_bridge_if(bridge
, dev
, SIOCBRDELIF
, NULL
);
779 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET
);
780 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET
);
781 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET6
);
782 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET6
);
783 system_set_disable_ipv6(dev
, "0");
786 static inline unsigned long
787 sec_to_jiffies(int val
)
789 return (unsigned long) val
* 100;
792 int system_bridge_addbr(struct device
*bridge
, struct bridge_config
*cfg
)
795 unsigned long args
[4] = {};
797 if (ioctl(sock_ioctl
, SIOCBRADDBR
, bridge
->ifname
) < 0)
800 args
[0] = BRCTL_SET_BRIDGE_STP_STATE
;
801 args
[1] = !!cfg
->stp
;
802 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
804 args
[0] = BRCTL_SET_BRIDGE_FORWARD_DELAY
;
805 args
[1] = sec_to_jiffies(cfg
->forward_delay
);
806 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
808 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_snooping",
809 bridge
->ifname
, cfg
->igmp_snoop
? "1" : "0");
811 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_querier",
812 bridge
->ifname
, cfg
->multicast_querier
? "1" : "0");
814 snprintf(buf
, sizeof(buf
), "%i", cfg
->hash_max
);
815 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/hash_max",
816 bridge
->ifname
, buf
);
818 args
[0] = BRCTL_SET_BRIDGE_PRIORITY
;
819 args
[1] = cfg
->priority
;
820 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
822 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
) {
823 args
[0] = BRCTL_SET_AGEING_TIME
;
824 args
[1] = sec_to_jiffies(cfg
->ageing_time
);
825 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
828 if (cfg
->flags
& BRIDGE_OPT_HELLO_TIME
) {
829 args
[0] = BRCTL_SET_BRIDGE_HELLO_TIME
;
830 args
[1] = sec_to_jiffies(cfg
->hello_time
);
831 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
834 if (cfg
->flags
& BRIDGE_OPT_MAX_AGE
) {
835 args
[0] = BRCTL_SET_BRIDGE_MAX_AGE
;
836 args
[1] = sec_to_jiffies(cfg
->max_age
);
837 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
843 int system_macvlan_add(struct device
*macvlan
, struct device
*dev
, struct macvlan_config
*cfg
)
846 struct nlattr
*linkinfo
, *data
;
847 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
, };
849 static const struct {
851 enum macvlan_mode val
;
853 { "private", MACVLAN_MODE_PRIVATE
},
854 { "vepa", MACVLAN_MODE_VEPA
},
855 { "bridge", MACVLAN_MODE_BRIDGE
},
856 { "passthru", MACVLAN_MODE_PASSTHRU
},
859 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
864 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
866 if (cfg
->flags
& MACVLAN_OPT_MACADDR
)
867 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
868 nla_put_string(msg
, IFLA_IFNAME
, macvlan
->ifname
);
869 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
871 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
872 goto nla_put_failure
;
874 nla_put_string(msg
, IFLA_INFO_KIND
, "macvlan");
876 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
877 goto nla_put_failure
;
880 for (i
= 0; i
< ARRAY_SIZE(modes
); i
++) {
881 if (strcmp(cfg
->mode
, modes
[i
].name
) != 0)
884 nla_put_u32(msg
, IFLA_MACVLAN_MODE
, modes
[i
].val
);
889 nla_nest_end(msg
, data
);
890 nla_nest_end(msg
, linkinfo
);
892 rv
= system_rtnl_call(msg
);
894 D(SYSTEM
, "Error adding macvlan '%s' over '%s': %d\n", macvlan
->ifname
, dev
->ifname
, rv
);
903 static int system_link_del(const char *ifname
)
906 struct ifinfomsg iim
= {
907 .ifi_family
= AF_UNSPEC
,
911 msg
= nlmsg_alloc_simple(RTM_DELLINK
, NLM_F_REQUEST
);
916 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
917 nla_put_string(msg
, IFLA_IFNAME
, ifname
);
918 return system_rtnl_call(msg
);
921 int system_macvlan_del(struct device
*macvlan
)
923 return system_link_del(macvlan
->ifname
);
926 static int system_vlan(struct device
*dev
, int id
)
928 struct vlan_ioctl_args ifr
= {
929 .cmd
= SET_VLAN_NAME_TYPE_CMD
,
930 .u
.name_type
= VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
,
933 ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
936 ifr
.cmd
= DEL_VLAN_CMD
;
939 ifr
.cmd
= ADD_VLAN_CMD
;
942 strncpy(ifr
.device1
, dev
->ifname
, sizeof(ifr
.device1
));
943 return ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
946 int system_vlan_add(struct device
*dev
, int id
)
948 return system_vlan(dev
, id
);
951 int system_vlan_del(struct device
*dev
)
953 return system_vlan(dev
, -1);
956 int system_vlandev_add(struct device
*vlandev
, struct device
*dev
, struct vlandev_config
*cfg
)
959 struct nlattr
*linkinfo
, *data
;
960 struct ifinfomsg iim
= { .ifi_family
= AF_UNSPEC
};
963 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
968 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
969 nla_put_string(msg
, IFLA_IFNAME
, vlandev
->ifname
);
970 nla_put_u32(msg
, IFLA_LINK
, dev
->ifindex
);
972 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
973 goto nla_put_failure
;
975 nla_put_string(msg
, IFLA_INFO_KIND
, "vlan");
977 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
978 goto nla_put_failure
;
980 nla_put_u16(msg
, IFLA_VLAN_ID
, cfg
->vid
);
982 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
983 nla_put_u16(msg
, IFLA_VLAN_PROTOCOL
, htons(cfg
->proto
));
985 if(cfg
->proto
== VLAN_PROTO_8021AD
)
986 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
);
989 nla_nest_end(msg
, data
);
990 nla_nest_end(msg
, linkinfo
);
992 rv
= system_rtnl_call(msg
);
994 D(SYSTEM
, "Error adding vlandev '%s' over '%s': %d\n", vlandev
->ifname
, dev
->ifname
, rv
);
1003 int system_vlandev_del(struct device
*vlandev
)
1005 return system_link_del(vlandev
->ifname
);
1009 system_if_get_settings(struct device
*dev
, struct device_settings
*s
)
1014 memset(&ifr
, 0, sizeof(ifr
));
1015 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
1017 if (ioctl(sock_ioctl
, SIOCGIFMTU
, &ifr
) == 0) {
1018 s
->mtu
= ifr
.ifr_mtu
;
1019 s
->flags
|= DEV_OPT_MTU
;
1022 if (ioctl(sock_ioctl
, SIOCGIFTXQLEN
, &ifr
) == 0) {
1023 s
->txqueuelen
= ifr
.ifr_qlen
;
1024 s
->flags
|= DEV_OPT_TXQUEUELEN
;
1027 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0) {
1028 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
1029 s
->flags
|= DEV_OPT_MACADDR
;
1032 if (!system_get_disable_ipv6(dev
, buf
, sizeof(buf
))) {
1033 s
->ipv6
= !strtoul(buf
, NULL
, 0);
1034 s
->flags
|= DEV_OPT_IPV6
;
1037 if (ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
) == 0) {
1038 s
->promisc
= ifr
.ifr_flags
& IFF_PROMISC
;
1039 s
->flags
|= DEV_OPT_PROMISC
;
1042 if (!system_get_rpfilter(dev
, buf
, sizeof(buf
))) {
1043 s
->rpfilter
= strtoul(buf
, NULL
, 0);
1044 s
->flags
|= DEV_OPT_RPFILTER
;
1047 if (!system_get_acceptlocal(dev
, buf
, sizeof(buf
))) {
1048 s
->acceptlocal
= strtoul(buf
, NULL
, 0);
1049 s
->flags
|= DEV_OPT_ACCEPTLOCAL
;
1052 if (!system_get_igmpversion(dev
, buf
, sizeof(buf
))) {
1053 s
->igmpversion
= strtoul(buf
, NULL
, 0);
1054 s
->flags
|= DEV_OPT_IGMPVERSION
;
1057 if (!system_get_mldversion(dev
, buf
, sizeof(buf
))) {
1058 s
->mldversion
= strtoul(buf
, NULL
, 0);
1059 s
->flags
|= DEV_OPT_MLDVERSION
;
1062 if (!system_get_neigh4reachabletime(dev
, buf
, sizeof(buf
))) {
1063 s
->neigh4reachabletime
= strtoul(buf
, NULL
, 0);
1064 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1067 if (!system_get_neigh6reachabletime(dev
, buf
, sizeof(buf
))) {
1068 s
->neigh6reachabletime
= strtoul(buf
, NULL
, 0);
1069 s
->flags
|= DEV_OPT_NEIGHREACHABLETIME
;
1074 system_if_set_rps_xps_val(const char *path
, int val
)
1080 if (glob(path
, 0, NULL
, &gl
))
1083 snprintf(val_buf
, sizeof(val_buf
), "%x", val
);
1084 for (i
= 0; i
< gl
.gl_pathc
; i
++)
1085 system_set_sysctl(gl
.gl_pathv
[i
], val_buf
);
1089 system_if_apply_rps_xps(struct device
*dev
, struct device_settings
*s
)
1091 long n_cpus
= sysconf(_SC_NPROCESSORS_ONLN
);
1097 val
= (1 << n_cpus
) - 1;
1098 snprintf(dev_buf
, sizeof(dev_buf
), "/sys/class/net/%s/queues/*/rps_cpus", dev
->ifname
);
1099 system_if_set_rps_xps_val(dev_buf
, s
->rps
? val
: 0);
1101 snprintf(dev_buf
, sizeof(dev_buf
), "/sys/class/net/%s/queues/*/xps_cpus", dev
->ifname
);
1102 system_if_set_rps_xps_val(dev_buf
, s
->xps
? val
: 0);
1106 system_if_apply_settings(struct device
*dev
, struct device_settings
*s
, unsigned int apply_mask
)
1110 memset(&ifr
, 0, sizeof(ifr
));
1111 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
1112 if (s
->flags
& DEV_OPT_MTU
& apply_mask
) {
1113 ifr
.ifr_mtu
= s
->mtu
;
1114 if (ioctl(sock_ioctl
, SIOCSIFMTU
, &ifr
) < 0)
1115 s
->flags
&= ~DEV_OPT_MTU
;
1117 if (s
->flags
& DEV_OPT_TXQUEUELEN
& apply_mask
) {
1118 ifr
.ifr_qlen
= s
->txqueuelen
;
1119 if (ioctl(sock_ioctl
, SIOCSIFTXQLEN
, &ifr
) < 0)
1120 s
->flags
&= ~DEV_OPT_TXQUEUELEN
;
1122 if ((s
->flags
& DEV_OPT_MACADDR
& apply_mask
) && !dev
->external
) {
1123 ifr
.ifr_hwaddr
.sa_family
= ARPHRD_ETHER
;
1124 memcpy(&ifr
.ifr_hwaddr
.sa_data
, s
->macaddr
, sizeof(s
->macaddr
));
1125 if (ioctl(sock_ioctl
, SIOCSIFHWADDR
, &ifr
) < 0)
1126 s
->flags
&= ~DEV_OPT_MACADDR
;
1128 if (s
->flags
& DEV_OPT_IPV6
& apply_mask
)
1129 system_set_disable_ipv6(dev
, s
->ipv6
? "0" : "1");
1130 if (s
->flags
& DEV_OPT_PROMISC
& apply_mask
) {
1131 if (system_if_flags(dev
->ifname
, s
->promisc
? IFF_PROMISC
: 0,
1132 !s
->promisc
? IFF_PROMISC
: 0) < 0)
1133 s
->flags
&= ~DEV_OPT_PROMISC
;
1135 if (s
->flags
& DEV_OPT_RPFILTER
& apply_mask
) {
1138 snprintf(buf
, sizeof(buf
), "%d", s
->rpfilter
);
1139 system_set_rpfilter(dev
, buf
);
1141 if (s
->flags
& DEV_OPT_ACCEPTLOCAL
& apply_mask
)
1142 system_set_acceptlocal(dev
, s
->acceptlocal
? "1" : "0");
1143 if (s
->flags
& DEV_OPT_IGMPVERSION
& apply_mask
) {
1146 snprintf(buf
, sizeof(buf
), "%d", s
->igmpversion
);
1147 system_set_igmpversion(dev
, buf
);
1149 if (s
->flags
& DEV_OPT_MLDVERSION
& apply_mask
) {
1152 snprintf(buf
, sizeof(buf
), "%d", s
->mldversion
);
1153 system_set_mldversion(dev
, buf
);
1155 if (s
->flags
& DEV_OPT_NEIGHREACHABLETIME
& apply_mask
) {
1158 snprintf(buf
, sizeof(buf
), "%d", s
->neigh4reachabletime
);
1159 system_set_neigh4reachabletime(dev
, buf
);
1160 snprintf(buf
, sizeof(buf
), "%d", s
->neigh6reachabletime
);
1161 system_set_neigh6reachabletime(dev
, buf
);
1164 system_if_apply_rps_xps(dev
, s
);
1167 int system_if_up(struct device
*dev
)
1169 system_if_get_settings(dev
, &dev
->orig_settings
);
1170 /* Only keep orig settings based on what needs to be set */
1171 dev
->orig_settings
.flags
&= dev
->settings
.flags
;
1172 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
1173 return system_if_flags(dev
->ifname
, IFF_UP
, 0);
1176 int system_if_down(struct device
*dev
)
1178 int ret
= system_if_flags(dev
->ifname
, 0, IFF_UP
);
1179 system_if_apply_settings(dev
, &dev
->orig_settings
, dev
->orig_settings
.flags
);
1183 struct if_check_data
{
1189 #ifndef IFF_LOWER_UP
1190 #define IFF_LOWER_UP 0x10000
1193 static int cb_if_check_valid(struct nl_msg
*msg
, void *arg
)
1195 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
1196 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
1197 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1199 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
1202 device_set_present(chk
->dev
, ifi
->ifi_index
> 0 ? true : false);
1203 device_set_link(chk
->dev
, ifi
->ifi_flags
& IFF_LOWER_UP
? true : false);
1208 static int cb_if_check_ack(struct nl_msg
*msg
, void *arg
)
1210 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1215 static int cb_if_check_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
1217 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
1219 device_set_present(chk
->dev
, false);
1220 device_set_link(chk
->dev
, false);
1221 chk
->pending
= err
->error
;
1226 int system_if_check(struct device
*dev
)
1228 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1230 struct ifinfomsg ifi
= {
1231 .ifi_family
= AF_UNSPEC
,
1234 struct if_check_data chk
= {
1240 msg
= nlmsg_alloc_simple(RTM_GETLINK
, 0);
1241 if (!msg
|| nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
1242 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
1245 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_check_valid
, &chk
);
1246 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_check_ack
, &chk
);
1247 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_check_error
, &chk
);
1249 nl_send_auto_complete(sock_rtnl
, msg
);
1250 while (chk
.pending
> 0)
1251 nl_recvmsgs(sock_rtnl
, cb
);
1262 system_if_get_parent(struct device
*dev
)
1264 char buf
[64], *devname
;
1265 int ifindex
, iflink
, len
;
1268 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/iflink", dev
->ifname
);
1269 f
= fopen(buf
, "r");
1273 len
= fread(buf
, 1, sizeof(buf
) - 1, f
);
1280 iflink
= strtoul(buf
, NULL
, 0);
1281 ifindex
= system_if_resolve(dev
);
1282 if (!iflink
|| iflink
== ifindex
)
1285 devname
= if_indextoname(iflink
, buf
);
1289 return device_get(devname
, true);
1293 read_string_file(int dir_fd
, const char *file
, char *buf
, int len
)
1299 fd
= openat(dir_fd
, file
, O_RDONLY
);
1304 len
= read(fd
, buf
, len
- 1);
1308 } else if (len
> 0) {
1311 c
= strchr(buf
, '\n');
1324 read_uint64_file(int dir_fd
, const char *file
, uint64_t *val
)
1329 ret
= read_string_file(dir_fd
, file
, buf
, sizeof(buf
));
1331 *val
= strtoull(buf
, NULL
, 0);
1336 /* Assume advertised flags == supported flags */
1337 static const struct {
1340 } ethtool_link_modes
[] = {
1341 { ADVERTISED_10baseT_Half
, "10H" },
1342 { ADVERTISED_10baseT_Full
, "10F" },
1343 { ADVERTISED_100baseT_Half
, "100H" },
1344 { ADVERTISED_100baseT_Full
, "100F" },
1345 { ADVERTISED_1000baseT_Half
, "1000H" },
1346 { ADVERTISED_1000baseT_Full
, "1000F" },
1349 static void system_add_link_modes(struct blob_buf
*b
, __u32 mask
)
1352 for (i
= 0; i
< ARRAY_SIZE(ethtool_link_modes
); i
++) {
1353 if (mask
& ethtool_link_modes
[i
].mask
)
1354 blobmsg_add_string(b
, NULL
, ethtool_link_modes
[i
].name
);
1359 system_if_force_external(const char *ifname
)
1364 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/phy80211", ifname
);
1365 return stat(buf
, &s
) == 0;
1369 system_if_dump_info(struct device
*dev
, struct blob_buf
*b
)
1371 struct ethtool_cmd ecmd
;
1377 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s", dev
->ifname
);
1378 dir_fd
= open(buf
, O_DIRECTORY
);
1380 memset(&ecmd
, 0, sizeof(ecmd
));
1381 memset(&ifr
, 0, sizeof(ifr
));
1382 strcpy(ifr
.ifr_name
, dev
->ifname
);
1383 ifr
.ifr_data
= (caddr_t
) &ecmd
;
1384 ecmd
.cmd
= ETHTOOL_GSET
;
1386 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) == 0) {
1387 c
= blobmsg_open_array(b
, "link-advertising");
1388 system_add_link_modes(b
, ecmd
.advertising
);
1389 blobmsg_close_array(b
, c
);
1391 c
= blobmsg_open_array(b
, "link-supported");
1392 system_add_link_modes(b
, ecmd
.supported
);
1393 blobmsg_close_array(b
, c
);
1395 s
= blobmsg_alloc_string_buffer(b
, "speed", 8);
1396 snprintf(s
, 8, "%d%c", ethtool_cmd_speed(&ecmd
),
1397 ecmd
.duplex
== DUPLEX_HALF
? 'H' : 'F');
1398 blobmsg_add_string_buffer(b
);
1406 system_if_dump_stats(struct device
*dev
, struct blob_buf
*b
)
1408 const char *const counters
[] = {
1409 "collisions", "rx_frame_errors", "tx_compressed",
1410 "multicast", "rx_length_errors", "tx_dropped",
1411 "rx_bytes", "rx_missed_errors", "tx_errors",
1412 "rx_compressed", "rx_over_errors", "tx_fifo_errors",
1413 "rx_crc_errors", "rx_packets", "tx_heartbeat_errors",
1414 "rx_dropped", "tx_aborted_errors", "tx_packets",
1415 "rx_errors", "tx_bytes", "tx_window_errors",
1416 "rx_fifo_errors", "tx_carrier_errors",
1423 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/statistics", dev
->ifname
);
1424 stats_dir
= open(buf
, O_DIRECTORY
);
1428 for (i
= 0; i
< ARRAY_SIZE(counters
); i
++)
1429 if (read_uint64_file(stats_dir
, counters
[i
], &val
))
1430 blobmsg_add_u64(b
, counters
[i
], val
);
1436 static int system_addr(struct device
*dev
, struct device_addr
*addr
, int cmd
)
1438 bool v4
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
);
1439 int alen
= v4
? 4 : 16;
1440 unsigned int flags
= 0;
1441 struct ifaddrmsg ifa
= {
1442 .ifa_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
1443 .ifa_prefixlen
= addr
->mask
,
1444 .ifa_index
= dev
->ifindex
,
1448 if (cmd
== RTM_NEWADDR
)
1449 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
1451 msg
= nlmsg_alloc_simple(cmd
, flags
);
1455 nlmsg_append(msg
, &ifa
, sizeof(ifa
), 0);
1456 nla_put(msg
, IFA_LOCAL
, alen
, &addr
->addr
);
1458 if (addr
->broadcast
)
1459 nla_put_u32(msg
, IFA_BROADCAST
, addr
->broadcast
);
1460 if (addr
->point_to_point
)
1461 nla_put_u32(msg
, IFA_ADDRESS
, addr
->point_to_point
);
1463 time_t now
= system_get_rtime();
1464 struct ifa_cacheinfo cinfo
= {0xffffffffU
, 0xffffffffU
, 0, 0};
1466 if (addr
->preferred_until
) {
1467 int64_t preferred
= addr
->preferred_until
- now
;
1470 else if (preferred
> UINT32_MAX
)
1471 preferred
= UINT32_MAX
;
1473 cinfo
.ifa_prefered
= preferred
;
1476 if (addr
->valid_until
) {
1477 int64_t valid
= addr
->valid_until
- now
;
1480 else if (valid
> UINT32_MAX
)
1483 cinfo
.ifa_valid
= valid
;
1486 nla_put(msg
, IFA_CACHEINFO
, sizeof(cinfo
), &cinfo
);
1488 if (cmd
== RTM_NEWADDR
&& (addr
->flags
& DEVADDR_OFFLINK
))
1489 nla_put_u32(msg
, IFA_FLAGS
, IFA_F_NOPREFIXROUTE
);
1492 return system_rtnl_call(msg
);
1495 int system_add_address(struct device
*dev
, struct device_addr
*addr
)
1497 return system_addr(dev
, addr
, RTM_NEWADDR
);
1500 int system_del_address(struct device
*dev
, struct device_addr
*addr
)
1502 return system_addr(dev
, addr
, RTM_DELADDR
);
1505 static int system_rt(struct device
*dev
, struct device_route
*route
, int cmd
)
1507 int alen
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
1509 unsigned int flags
= 0;
1512 have_gw
= !!route
->nexthop
.in
.s_addr
;
1514 have_gw
= route
->nexthop
.in6
.s6_addr32
[0] ||
1515 route
->nexthop
.in6
.s6_addr32
[1] ||
1516 route
->nexthop
.in6
.s6_addr32
[2] ||
1517 route
->nexthop
.in6
.s6_addr32
[3];
1519 unsigned int table
= (route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))
1520 ? route
->table
: RT_TABLE_MAIN
;
1522 struct rtmsg rtm
= {
1523 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
1524 .rtm_dst_len
= route
->mask
,
1525 .rtm_src_len
= route
->sourcemask
,
1526 .rtm_table
= (table
< 256) ? table
: RT_TABLE_UNSPEC
,
1527 .rtm_protocol
= (route
->flags
& DEVADDR_KERNEL
) ? RTPROT_KERNEL
: RTPROT_STATIC
,
1528 .rtm_scope
= RT_SCOPE_NOWHERE
,
1529 .rtm_type
= (cmd
== RTM_DELROUTE
) ? 0: RTN_UNICAST
,
1530 .rtm_flags
= (route
->flags
& DEVROUTE_ONLINK
) ? RTNH_F_ONLINK
: 0,
1534 if (cmd
== RTM_NEWROUTE
) {
1535 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
1537 if (!dev
) { // Add null-route
1538 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
1539 rtm
.rtm_type
= RTN_UNREACHABLE
;
1542 rtm
.rtm_scope
= (have_gw
) ? RT_SCOPE_UNIVERSE
: RT_SCOPE_LINK
;
1545 if (route
->flags
& DEVROUTE_TYPE
) {
1546 rtm
.rtm_type
= route
->type
;
1547 if (!(route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))) {
1548 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_BROADCAST
||
1549 rtm
.rtm_type
== RTN_NAT
|| rtm
.rtm_type
== RTN_ANYCAST
)
1550 rtm
.rtm_table
= RT_TABLE_LOCAL
;
1553 if (rtm
.rtm_type
== RTN_LOCAL
|| rtm
.rtm_type
== RTN_NAT
) {
1554 rtm
.rtm_scope
= RT_SCOPE_HOST
;
1555 } else if (rtm
.rtm_type
== RTN_BROADCAST
|| rtm
.rtm_type
== RTN_MULTICAST
||
1556 rtm
.rtm_type
== RTN_ANYCAST
) {
1557 rtm
.rtm_scope
= RT_SCOPE_LINK
;
1558 } else if (rtm
.rtm_type
== RTN_BLACKHOLE
|| rtm
.rtm_type
== RTN_UNREACHABLE
||
1559 rtm
.rtm_type
== RTN_PROHIBIT
|| rtm
.rtm_type
== RTN_FAILED_POLICY
) {
1560 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
1565 msg
= nlmsg_alloc_simple(cmd
, flags
);
1569 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
1572 nla_put(msg
, RTA_DST
, alen
, &route
->addr
);
1574 if (route
->sourcemask
) {
1575 if (rtm
.rtm_family
== AF_INET
)
1576 nla_put(msg
, RTA_PREFSRC
, alen
, &route
->source
);
1578 nla_put(msg
, RTA_SRC
, alen
, &route
->source
);
1581 if (route
->metric
> 0)
1582 nla_put_u32(msg
, RTA_PRIORITY
, route
->metric
);
1585 nla_put(msg
, RTA_GATEWAY
, alen
, &route
->nexthop
);
1588 nla_put_u32(msg
, RTA_OIF
, dev
->ifindex
);
1591 nla_put_u32(msg
, RTA_TABLE
, table
);
1593 if (route
->flags
& DEVROUTE_MTU
) {
1594 struct nlattr
*metrics
;
1596 if (!(metrics
= nla_nest_start(msg
, RTA_METRICS
)))
1597 goto nla_put_failure
;
1599 nla_put_u32(msg
, RTAX_MTU
, route
->mtu
);
1601 nla_nest_end(msg
, metrics
);
1604 return system_rtnl_call(msg
);
1611 int system_add_route(struct device
*dev
, struct device_route
*route
)
1613 return system_rt(dev
, route
, RTM_NEWROUTE
);
1616 int system_del_route(struct device
*dev
, struct device_route
*route
)
1618 return system_rt(dev
, route
, RTM_DELROUTE
);
1621 int system_flush_routes(void)
1623 const char *names
[] = {
1624 "/proc/sys/net/ipv4/route/flush",
1625 "/proc/sys/net/ipv6/route/flush"
1629 for (i
= 0; i
< ARRAY_SIZE(names
); i
++) {
1630 fd
= open(names
[i
], O_WRONLY
);
1634 if (write(fd
, "-1", 2)) {}
1640 bool system_resolve_rt_type(const char *type
, unsigned int *id
)
1642 return system_rtn_aton(type
, id
);
1645 bool system_resolve_rt_table(const char *name
, unsigned int *id
)
1649 unsigned int n
, table
= RT_TABLE_UNSPEC
;
1651 /* first try to parse table as number */
1652 if ((n
= strtoul(name
, &e
, 0)) > 0 && !*e
)
1655 /* handle well known aliases */
1656 else if (!strcmp(name
, "default"))
1657 table
= RT_TABLE_DEFAULT
;
1658 else if (!strcmp(name
, "main"))
1659 table
= RT_TABLE_MAIN
;
1660 else if (!strcmp(name
, "local"))
1661 table
= RT_TABLE_LOCAL
;
1662 else if (!strcmp(name
, "prelocal"))
1663 table
= RT_TABLE_PRELOCAL
;
1665 /* try to look up name in /etc/iproute2/rt_tables */
1666 else if ((f
= fopen("/etc/iproute2/rt_tables", "r")) != NULL
)
1668 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
)
1670 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
1673 n
= strtoul(e
, NULL
, 10);
1674 e
= strtok(NULL
, " \t\n");
1676 if (e
&& !strcmp(e
, name
))
1686 if (table
== RT_TABLE_UNSPEC
)
1693 bool system_is_default_rt_table(unsigned int id
)
1695 return (id
== RT_TABLE_MAIN
);
1698 bool system_resolve_rpfilter(const char *filter
, unsigned int *id
)
1703 if (!strcmp(filter
, "strict"))
1705 else if (!strcmp(filter
, "loose"))
1708 n
= strtoul(filter
, &e
, 0);
1709 if (*e
|| e
== filter
|| n
> 2)
1717 static int system_iprule(struct iprule
*rule
, int cmd
)
1719 int alen
= ((rule
->flags
& IPRULE_FAMILY
) == IPRULE_INET4
) ? 4 : 16;
1722 struct rtmsg rtm
= {
1723 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
1724 .rtm_protocol
= RTPROT_STATIC
,
1725 .rtm_scope
= RT_SCOPE_UNIVERSE
,
1726 .rtm_table
= RT_TABLE_UNSPEC
,
1727 .rtm_type
= RTN_UNSPEC
,
1731 if (cmd
== RTM_NEWRULE
) {
1732 rtm
.rtm_type
= RTN_UNICAST
;
1733 rtm
.rtm_flags
|= NLM_F_REPLACE
| NLM_F_EXCL
;
1737 rtm
.rtm_flags
|= FIB_RULE_INVERT
;
1739 if (rule
->flags
& IPRULE_SRC
)
1740 rtm
.rtm_src_len
= rule
->src_mask
;
1742 if (rule
->flags
& IPRULE_DEST
)
1743 rtm
.rtm_dst_len
= rule
->dest_mask
;
1745 if (rule
->flags
& IPRULE_TOS
)
1746 rtm
.rtm_tos
= rule
->tos
;
1748 if (rule
->flags
& IPRULE_LOOKUP
) {
1749 if (rule
->lookup
< 256)
1750 rtm
.rtm_table
= rule
->lookup
;
1753 if (rule
->flags
& IPRULE_ACTION
)
1754 rtm
.rtm_type
= rule
->action
;
1755 else if (rule
->flags
& IPRULE_GOTO
)
1756 rtm
.rtm_type
= FR_ACT_GOTO
;
1757 else if (!(rule
->flags
& (IPRULE_LOOKUP
| IPRULE_ACTION
| IPRULE_GOTO
)))
1758 rtm
.rtm_type
= FR_ACT_NOP
;
1760 msg
= nlmsg_alloc_simple(cmd
, NLM_F_REQUEST
);
1765 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
1767 if (rule
->flags
& IPRULE_IN
)
1768 nla_put(msg
, FRA_IFNAME
, strlen(rule
->in_dev
) + 1, rule
->in_dev
);
1770 if (rule
->flags
& IPRULE_OUT
)
1771 nla_put(msg
, FRA_OIFNAME
, strlen(rule
->out_dev
) + 1, rule
->out_dev
);
1773 if (rule
->flags
& IPRULE_SRC
)
1774 nla_put(msg
, FRA_SRC
, alen
, &rule
->src_addr
);
1776 if (rule
->flags
& IPRULE_DEST
)
1777 nla_put(msg
, FRA_DST
, alen
, &rule
->dest_addr
);
1779 if (rule
->flags
& IPRULE_PRIORITY
)
1780 nla_put_u32(msg
, FRA_PRIORITY
, rule
->priority
);
1781 else if (cmd
== RTM_NEWRULE
)
1782 nla_put_u32(msg
, FRA_PRIORITY
, rule
->order
);
1784 if (rule
->flags
& IPRULE_FWMARK
)
1785 nla_put_u32(msg
, FRA_FWMARK
, rule
->fwmark
);
1787 if (rule
->flags
& IPRULE_FWMASK
)
1788 nla_put_u32(msg
, FRA_FWMASK
, rule
->fwmask
);
1790 if (rule
->flags
& IPRULE_LOOKUP
) {
1791 if (rule
->lookup
>= 256)
1792 nla_put_u32(msg
, FRA_TABLE
, rule
->lookup
);
1795 if (rule
->flags
& IPRULE_GOTO
)
1796 nla_put_u32(msg
, FRA_GOTO
, rule
->gotoid
);
1798 return system_rtnl_call(msg
);
1801 int system_add_iprule(struct iprule
*rule
)
1803 return system_iprule(rule
, RTM_NEWRULE
);
1806 int system_del_iprule(struct iprule
*rule
)
1808 return system_iprule(rule
, RTM_DELRULE
);
1811 int system_flush_iprules(void)
1816 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET
);
1817 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET6
);
1819 memset(&rule
, 0, sizeof(rule
));
1822 rule
.flags
= IPRULE_INET4
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
1825 rule
.lookup
= RT_TABLE_PRELOCAL
;
1826 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
1829 rule
.lookup
= RT_TABLE_LOCAL
;
1830 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
1832 rule
.priority
= 32766;
1833 rule
.lookup
= RT_TABLE_MAIN
;
1834 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
1836 rule
.priority
= 32767;
1837 rule
.lookup
= RT_TABLE_DEFAULT
;
1838 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
1841 rule
.flags
= IPRULE_INET6
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
1844 rule
.lookup
= RT_TABLE_PRELOCAL
;
1845 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
1848 rule
.lookup
= RT_TABLE_LOCAL
;
1849 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
1851 rule
.priority
= 32766;
1852 rule
.lookup
= RT_TABLE_MAIN
;
1853 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
1858 bool system_resolve_iprule_action(const char *action
, unsigned int *id
)
1860 return system_rtn_aton(action
, id
);
1863 time_t system_get_rtime(void)
1868 if (syscall(__NR_clock_gettime
, CLOCK_MONOTONIC
, &ts
) == 0)
1871 if (gettimeofday(&tv
, NULL
) == 0)
1878 #define IP_DF 0x4000
1881 static int tunnel_ioctl(const char *name
, int cmd
, void *p
)
1885 memset(&ifr
, 0, sizeof(ifr
));
1886 strncpy(ifr
.ifr_name
, name
, sizeof(ifr
.ifr_name
));
1887 ifr
.ifr_ifru
.ifru_data
= p
;
1888 return ioctl(sock_ioctl
, cmd
, &ifr
);
1891 #ifdef IFLA_IPTUN_MAX
1892 #define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
1893 static int system_add_gre_tunnel(const char *name
, const char *kind
,
1894 const unsigned int link
, struct blob_attr
**tb
, bool v6
)
1897 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
, };
1898 struct blob_attr
*cur
;
1899 uint32_t ikey
= 0, okey
= 0, flags
= 0, flowinfo
= 0;
1900 uint16_t iflags
= 0, oflags
= 0;
1902 int ret
= 0, ttl
= 64;
1904 nlm
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
1908 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
1909 nla_put_string(nlm
, IFLA_IFNAME
, name
);
1911 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
1917 nla_put_string(nlm
, IFLA_INFO_KIND
, kind
);
1918 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
1925 nla_put_u32(nlm
, IFLA_GRE_LINK
, link
);
1927 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
1928 ttl
= blobmsg_get_u32(cur
);
1930 nla_put_u8(nlm
, IFLA_GRE_TTL
, ttl
);
1932 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
1933 char *str
= blobmsg_get_string(cur
);
1934 if (strcmp(str
, "inherit")) {
1937 if (!system_tos_aton(str
, &uval
)) {
1943 flowinfo
|= htonl(uval
<< 20) & IP6_FLOWINFO_TCLASS
;
1948 flags
|= IP6_TNL_F_USE_ORIG_TCLASS
;
1954 if ((cur
= tb
[TUNNEL_ATTR_INFO
]) && (blobmsg_type(cur
) == BLOBMSG_TYPE_STRING
)) {
1955 uint8_t icsum
, ocsum
, iseqno
, oseqno
;
1956 if (sscanf(blobmsg_get_string(cur
), "%u,%u,%hhu,%hhu,%hhu,%hhu",
1957 &ikey
, &okey
, &icsum
, &ocsum
, &iseqno
, &oseqno
) < 6) {
1982 struct in6_addr in6buf
;
1983 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
1984 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
1988 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(in6buf
), &in6buf
);
1991 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
1992 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
1996 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(in6buf
), &in6buf
);
1998 nla_put_u8(nlm
, IFLA_GRE_ENCAP_LIMIT
, 4);
2001 nla_put_u32(nlm
, IFLA_GRE_FLOWINFO
, flowinfo
);
2004 nla_put_u32(nlm
, IFLA_GRE_FLAGS
, flags
);
2006 struct in_addr inbuf
;
2009 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2010 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2014 nla_put(nlm
, IFLA_GRE_LOCAL
, sizeof(inbuf
), &inbuf
);
2017 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2018 if (inet_pton(AF_INET
, blobmsg_data(cur
), &inbuf
) < 1) {
2022 nla_put(nlm
, IFLA_GRE_REMOTE
, sizeof(inbuf
), &inbuf
);
2024 if (IN_MULTICAST(ntohl(inbuf
.s_addr
))) {
2026 okey
= inbuf
.s_addr
;
2031 ikey
= inbuf
.s_addr
;
2037 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
2038 set_df
= blobmsg_get_bool(cur
);
2040 /* ttl !=0 and nopmtudisc are incompatible */
2041 if (ttl
&& !set_df
) {
2046 nla_put_u8(nlm
, IFLA_GRE_PMTUDISC
, set_df
? 1 : 0);
2048 nla_put_u8(nlm
, IFLA_GRE_TOS
, tos
);
2052 nla_put_u16(nlm
, IFLA_GRE_OFLAGS
, oflags
);
2055 nla_put_u16(nlm
, IFLA_GRE_IFLAGS
, iflags
);
2058 nla_put_u32(nlm
, IFLA_GRE_OKEY
, okey
);
2061 nla_put_u32(nlm
, IFLA_GRE_IKEY
, ikey
);
2063 nla_nest_end(nlm
, infodata
);
2064 nla_nest_end(nlm
, linkinfo
);
2066 return system_rtnl_call(nlm
);
2074 static int system_add_proto_tunnel(const char *name
, const uint8_t proto
, const unsigned int link
, struct blob_attr
**tb
)
2076 struct blob_attr
*cur
;
2078 struct ip_tunnel_parm p
= {
2087 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
]) &&
2088 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.saddr
) < 1)
2091 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
]) &&
2092 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.daddr
) < 1)
2095 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
2096 set_df
= blobmsg_get_bool(cur
);
2098 if ((cur
= tb
[TUNNEL_ATTR_TTL
]))
2099 p
.iph
.ttl
= blobmsg_get_u32(cur
);
2101 if ((cur
= tb
[TUNNEL_ATTR_TOS
])) {
2102 char *str
= blobmsg_get_string(cur
);
2103 if (strcmp(str
, "inherit")) {
2106 if (!system_tos_aton(str
, &uval
))
2114 p
.iph
.frag_off
= set_df
? htons(IP_DF
) : 0;
2115 /* ttl !=0 and nopmtudisc are incompatible */
2116 if (p
.iph
.ttl
&& p
.iph
.frag_off
== 0)
2119 strncpy(p
.name
, name
, sizeof(p
.name
));
2121 switch (p
.iph
.protocol
) {
2123 return tunnel_ioctl("tunl0", SIOCADDTUNNEL
, &p
);
2125 return tunnel_ioctl("sit0", SIOCADDTUNNEL
, &p
);
2132 static int __system_del_ip_tunnel(const char *name
, struct blob_attr
**tb
)
2134 struct blob_attr
*cur
;
2137 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
2139 str
= blobmsg_data(cur
);
2141 if (!strcmp(str
, "greip") || !strcmp(str
, "gretapip") ||
2142 !strcmp(str
, "greip6") || !strcmp(str
, "gretapip6"))
2143 return system_link_del(name
);
2145 return tunnel_ioctl(name
, SIOCDELTUNNEL
, NULL
);
2148 int system_del_ip_tunnel(const char *name
, struct blob_attr
*attr
)
2150 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
2152 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
2153 blob_data(attr
), blob_len(attr
));
2155 return __system_del_ip_tunnel(name
, tb
);
2158 int system_update_ipv6_mtu(struct device
*dev
, int mtu
)
2162 snprintf(buf
, sizeof(buf
), "/proc/sys/net/ipv6/conf/%s/mtu",
2165 int fd
= open(buf
, O_RDWR
);
2166 ssize_t len
= read(fd
, buf
, sizeof(buf
) - 1);
2173 if (!mtu
|| ret
<= mtu
)
2176 lseek(fd
, 0, SEEK_SET
);
2177 if (write(fd
, buf
, snprintf(buf
, sizeof(buf
), "%i", mtu
)) <= 0)
2185 int system_add_ip_tunnel(const char *name
, struct blob_attr
*attr
)
2187 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
2188 struct blob_attr
*cur
;
2191 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
2192 blob_data(attr
), blob_len(attr
));
2194 __system_del_ip_tunnel(name
, tb
);
2196 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
2198 str
= blobmsg_data(cur
);
2200 unsigned int ttl
= 0;
2201 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
2202 ttl
= blobmsg_get_u32(cur
);
2207 unsigned int link
= 0;
2208 if ((cur
= tb
[TUNNEL_ATTR_LINK
])) {
2209 struct interface
*iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
2213 if (iface
->l3_dev
.dev
)
2214 link
= iface
->l3_dev
.dev
->ifindex
;
2217 if (!strcmp(str
, "sit")) {
2218 if (system_add_proto_tunnel(name
, IPPROTO_IPV6
, link
, tb
) < 0)
2222 if ((cur
= tb
[TUNNEL_ATTR_6RD_PREFIX
])) {
2224 struct ip_tunnel_6rd p6
;
2226 memset(&p6
, 0, sizeof(p6
));
2228 if (!parse_ip_and_netmask(AF_INET6
, blobmsg_data(cur
),
2229 &p6
.prefix
, &mask
) || mask
> 128)
2231 p6
.prefixlen
= mask
;
2233 if ((cur
= tb
[TUNNEL_ATTR_6RD_RELAY_PREFIX
])) {
2234 if (!parse_ip_and_netmask(AF_INET
, blobmsg_data(cur
),
2235 &p6
.relay_prefix
, &mask
) || mask
> 32)
2237 p6
.relay_prefixlen
= mask
;
2240 if (tunnel_ioctl(name
, SIOCADD6RD
, &p6
) < 0) {
2241 __system_del_ip_tunnel(name
, tb
);
2246 #ifdef IFLA_IPTUN_MAX
2247 } else if (!strcmp(str
, "ipip6")) {
2248 struct nl_msg
*nlm
= nlmsg_alloc_simple(RTM_NEWLINK
,
2249 NLM_F_REQUEST
| NLM_F_REPLACE
| NLM_F_CREATE
);
2250 struct ifinfomsg ifi
= { .ifi_family
= AF_UNSPEC
};
2256 nlmsg_append(nlm
, &ifi
, sizeof(ifi
), 0);
2257 nla_put_string(nlm
, IFLA_IFNAME
, name
);
2260 nla_put_u32(nlm
, IFLA_LINK
, link
);
2262 struct nlattr
*linkinfo
= nla_nest_start(nlm
, IFLA_LINKINFO
);
2267 nla_put_string(nlm
, IFLA_INFO_KIND
, "ip6tnl");
2268 struct nlattr
*infodata
= nla_nest_start(nlm
, IFLA_INFO_DATA
);
2275 nla_put_u32(nlm
, IFLA_IPTUN_LINK
, link
);
2277 nla_put_u8(nlm
, IFLA_IPTUN_PROTO
, IPPROTO_IPIP
);
2278 nla_put_u8(nlm
, IFLA_IPTUN_TTL
, (ttl
) ? ttl
: 64);
2279 nla_put_u8(nlm
, IFLA_IPTUN_ENCAP_LIMIT
, 4);
2281 struct in6_addr in6buf
;
2282 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
])) {
2283 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2287 nla_put(nlm
, IFLA_IPTUN_LOCAL
, sizeof(in6buf
), &in6buf
);
2290 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
])) {
2291 if (inet_pton(AF_INET6
, blobmsg_data(cur
), &in6buf
) < 1) {
2295 nla_put(nlm
, IFLA_IPTUN_REMOTE
, sizeof(in6buf
), &in6buf
);
2298 #ifdef IFLA_IPTUN_FMR_MAX
2299 if ((cur
= tb
[TUNNEL_ATTR_FMRS
])) {
2300 struct nlattr
*fmrs
= nla_nest_start(nlm
, IFLA_IPTUN_FMRS
);
2302 struct blob_attr
*fmr
;
2303 unsigned rem
, fmrcnt
= 0;
2304 blobmsg_for_each_attr(fmr
, cur
, rem
) {
2305 if (blobmsg_type(fmr
) != BLOBMSG_TYPE_STRING
)
2308 unsigned ip4len
, ip6len
, ealen
, offset
= 6;
2312 if (sscanf(blobmsg_get_string(fmr
), "%47[^/]/%u,%15[^/]/%u,%u,%u",
2313 ip6buf
, &ip6len
, ip4buf
, &ip4len
, &ealen
, &offset
) < 5) {
2318 struct in6_addr ip6prefix
;
2319 struct in_addr ip4prefix
;
2320 if (inet_pton(AF_INET6
, ip6buf
, &ip6prefix
) != 1 ||
2321 inet_pton(AF_INET
, ip4buf
, &ip4prefix
) != 1) {
2326 struct nlattr
*rule
= nla_nest_start(nlm
, ++fmrcnt
);
2328 nla_put(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX
, sizeof(ip6prefix
), &ip6prefix
);
2329 nla_put(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX
, sizeof(ip4prefix
), &ip4prefix
);
2330 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP6_PREFIX_LEN
, ip6len
);
2331 nla_put_u8(nlm
, IFLA_IPTUN_FMR_IP4_PREFIX_LEN
, ip4len
);
2332 nla_put_u8(nlm
, IFLA_IPTUN_FMR_EA_LEN
, ealen
);
2333 nla_put_u8(nlm
, IFLA_IPTUN_FMR_OFFSET
, offset
);
2335 nla_nest_end(nlm
, rule
);
2338 nla_nest_end(nlm
, fmrs
);
2342 nla_nest_end(nlm
, infodata
);
2343 nla_nest_end(nlm
, linkinfo
);
2345 return system_rtnl_call(nlm
);
2349 } else if (!strcmp(str
, "greip")) {
2350 return system_add_gre_tunnel(name
, "gre", link
, tb
, false);
2351 } else if (!strcmp(str
, "gretapip")) {
2352 return system_add_gre_tunnel(name
, "gretap", link
, tb
, false);
2353 } else if (!strcmp(str
, "greip6")) {
2354 return system_add_gre_tunnel(name
, "ip6gre", link
, tb
, true);
2355 } else if (!strcmp(str
, "gretapip6")) {
2356 return system_add_gre_tunnel(name
, "ip6gretap", link
, tb
, true);
2358 } else if (!strcmp(str
, "ipip")) {
2359 return system_add_proto_tunnel(name
, IPPROTO_IPIP
, link
, tb
);