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>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2
9 * as published by the Free Software Foundation
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
18 #include <sys/socket.h>
19 #include <sys/ioctl.h>
21 #include <sys/syscall.h>
24 #include <net/if_arp.h>
26 #include <arpa/inet.h>
27 #include <netinet/in.h>
29 #include <linux/rtnetlink.h>
30 #include <linux/sockios.h>
32 #include <linux/if_link.h>
33 #include <linux/if_vlan.h>
34 #include <linux/if_bridge.h>
35 #include <linux/if_tunnel.h>
36 #include <linux/ip6_tunnel.h>
37 #include <linux/ethtool.h>
38 #include <linux/fib_rules.h>
40 #ifndef RTN_FAILED_POLICY
41 #define RTN_FAILED_POLICY 12
49 #include <netlink/msg.h>
50 #include <netlink/attr.h>
51 #include <netlink/socket.h>
52 #include <libubox/uloop.h>
59 struct uloop_fd uloop
;
64 static int sock_ioctl
= -1;
65 static struct nl_sock
*sock_rtnl
= NULL
;
67 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
);
68 static void handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
);
70 static char dev_buf
[256];
73 handler_nl_event(struct uloop_fd
*u
, unsigned int events
)
75 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
77 socklen_t errlen
= sizeof(err
);
80 nl_recvmsgs_default(ev
->sock
);
84 if (getsockopt(u
->fd
, SOL_SOCKET
, SO_ERROR
, (void *)&err
, &errlen
))
89 // Increase rx buffer size on netlink socket
91 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
94 // Request full dump since some info got dropped
95 struct rtgenmsg msg
= { .rtgen_family
= AF_UNSPEC
};
96 nl_send_simple(ev
->sock
, RTM_GETLINK
, NLM_F_DUMP
, &msg
, sizeof(msg
));
106 uloop_fd_delete(&ev
->uloop
);
110 static struct nl_sock
*
111 create_socket(int protocol
, int groups
)
113 struct nl_sock
*sock
;
115 sock
= nl_socket_alloc();
120 nl_join_groups(sock
, groups
);
122 if (nl_connect(sock
, protocol
))
129 create_raw_event_socket(struct event_socket
*ev
, int protocol
, int groups
,
130 uloop_fd_handler cb
, int flags
)
132 ev
->sock
= create_socket(protocol
, groups
);
136 ev
->uloop
.fd
= nl_socket_get_fd(ev
->sock
);
138 if (uloop_fd_add(&ev
->uloop
, ULOOP_READ
|flags
))
145 create_event_socket(struct event_socket
*ev
, int protocol
,
146 int (*cb
)(struct nl_msg
*msg
, void *arg
))
148 if (!create_raw_event_socket(ev
, protocol
, 0, handler_nl_event
, ULOOP_ERROR_CB
))
151 // Install the valid custom callback handler
152 nl_socket_modify_cb(ev
->sock
, NL_CB_VALID
, NL_CB_CUSTOM
, cb
, NULL
);
154 // Disable sequence number checking on event sockets
155 nl_socket_disable_seq_check(ev
->sock
);
157 // Increase rx buffer size to 65K on event sockets
159 if (nl_socket_set_buffer_size(ev
->sock
, ev
->bufsize
, 0))
165 int system_init(void)
167 static struct event_socket rtnl_event
;
168 static struct event_socket hotplug_event
;
170 sock_ioctl
= socket(AF_LOCAL
, SOCK_DGRAM
, 0);
171 system_fd_set_cloexec(sock_ioctl
);
173 // Prepare socket for routing / address control
174 sock_rtnl
= create_socket(NETLINK_ROUTE
, 0);
178 if (!create_event_socket(&rtnl_event
, NETLINK_ROUTE
, cb_rtnl_event
))
181 if (!create_raw_event_socket(&hotplug_event
, NETLINK_KOBJECT_UEVENT
, 1,
182 handle_hotplug_event
, 0))
185 // Receive network link events form kernel
186 nl_socket_add_membership(rtnl_event
.sock
, RTNLGRP_LINK
);
191 static void system_set_sysctl(const char *path
, const char *val
)
195 fd
= open(path
, O_WRONLY
);
199 if (write(fd
, val
, strlen(val
))) {}
203 static void system_set_dev_sysctl(const char *path
, const char *device
, const char *val
)
205 snprintf(dev_buf
, sizeof(dev_buf
), path
, device
);
206 system_set_sysctl(dev_buf
, val
);
209 static void system_set_disable_ipv6(struct device
*dev
, const char *val
)
211 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6", dev
->ifname
, val
);
214 static int system_get_sysctl(const char *path
, char *buf
, const size_t buf_sz
)
216 int fd
= -1, ret
= -1;
218 fd
= open(path
, O_RDONLY
);
222 ssize_t len
= read(fd
, buf
, buf_sz
- 1);
236 system_get_dev_sysctl(const char *path
, const char *device
, char *buf
, const size_t buf_sz
)
238 snprintf(dev_buf
, sizeof(dev_buf
), path
, device
);
239 return system_get_sysctl(dev_buf
, buf
, buf_sz
);
242 static int system_get_disable_ipv6(struct device
*dev
, char *buf
, const size_t buf_sz
)
244 return system_get_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6",
245 dev
->ifname
, buf
, buf_sz
);
249 #define IFF_LOWER_UP 0x10000
252 // Evaluate netlink messages
253 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
)
255 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
256 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
257 struct nlattr
*nla
[__IFLA_MAX
];
259 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
262 nlmsg_parse(nh
, sizeof(*ifi
), nla
, __IFLA_MAX
- 1, NULL
);
263 if (!nla
[IFLA_IFNAME
])
266 struct device
*dev
= device_get(nla_data(nla
[IFLA_IFNAME
]), false);
270 device_set_ifindex(dev
, ifi
->ifi_index
);
271 device_set_link(dev
, ifi
->ifi_flags
& IFF_LOWER_UP
? true : false);
278 handle_hotplug_msg(char *data
, int size
)
280 const char *subsystem
= NULL
, *interface
= NULL
;
281 char *cur
, *end
, *sep
;
286 if (!strncmp(data
, "add@", 4))
288 else if (!strncmp(data
, "remove@", 7))
293 skip
= strlen(data
) + 1;
296 for (cur
= data
+ skip
; cur
< end
; cur
+= skip
) {
297 skip
= strlen(cur
) + 1;
299 sep
= strchr(cur
, '=');
304 if (!strcmp(cur
, "INTERFACE"))
306 else if (!strcmp(cur
, "SUBSYSTEM")) {
308 if (strcmp(subsystem
, "net") != 0)
311 if (subsystem
&& interface
)
317 dev
= device_get(interface
, false);
321 if (dev
->type
!= &simple_device_type
)
324 if (add
&& system_if_force_external(dev
->ifname
))
327 device_set_present(dev
, add
);
331 handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
)
333 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
334 struct sockaddr_nl nla
;
335 unsigned char *buf
= NULL
;
338 while ((size
= nl_recv(ev
->sock
, &nla
, &buf
, NULL
)) > 0) {
340 handle_hotplug_msg((char *) buf
, size
);
346 static int system_rtnl_call(struct nl_msg
*msg
)
350 ret
= nl_send_auto_complete(sock_rtnl
, msg
);
356 return nl_wait_for_ack(sock_rtnl
);
359 int system_bridge_delbr(struct device
*bridge
)
361 return ioctl(sock_ioctl
, SIOCBRDELBR
, bridge
->ifname
);
364 static int system_bridge_if(const char *bridge
, struct device
*dev
, int cmd
, void *data
)
368 memset(&ifr
, 0, sizeof(ifr
));
370 ifr
.ifr_ifindex
= dev
->ifindex
;
373 strncpy(ifr
.ifr_name
, bridge
, sizeof(ifr
.ifr_name
));
374 return ioctl(sock_ioctl
, cmd
, &ifr
);
377 static bool system_is_bridge(const char *name
, char *buf
, int buflen
)
381 snprintf(buf
, buflen
, "/sys/devices/virtual/net/%s/bridge", name
);
382 if (stat(buf
, &st
) < 0)
388 static char *system_get_bridge(const char *name
, char *buf
, int buflen
)
394 snprintf(buf
, buflen
, "/sys/devices/virtual/net/*/brif/%s/bridge", name
);
395 if (glob(buf
, GLOB_NOSORT
, NULL
, &gl
) < 0)
398 if (gl
.gl_pathc
== 0)
401 len
= readlink(gl
.gl_pathv
[0], buf
, buflen
);
406 path
= strrchr(buf
, '/');
413 int system_bridge_addif(struct device
*bridge
, struct device
*dev
)
417 oldbr
= system_get_bridge(dev
->ifname
, dev_buf
, sizeof(dev_buf
));
418 if (oldbr
&& !strcmp(oldbr
, bridge
->ifname
))
421 return system_bridge_if(bridge
->ifname
, dev
, SIOCBRADDIF
, NULL
);
424 int system_bridge_delif(struct device
*bridge
, struct device
*dev
)
426 return system_bridge_if(bridge
->ifname
, dev
, SIOCBRDELIF
, NULL
);
429 static int system_if_resolve(struct device
*dev
)
432 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
433 if (!ioctl(sock_ioctl
, SIOCGIFINDEX
, &ifr
))
434 return ifr
.ifr_ifindex
;
439 static int system_if_flags(const char *ifname
, unsigned add
, unsigned rem
)
443 memset(&ifr
, 0, sizeof(ifr
));
444 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
));
445 ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
);
446 ifr
.ifr_flags
|= add
;
447 ifr
.ifr_flags
&= ~rem
;
448 return ioctl(sock_ioctl
, SIOCSIFFLAGS
, &ifr
);
460 static bool check_ifaddr(struct nlmsghdr
*hdr
, int ifindex
)
462 struct ifaddrmsg
*ifa
= NLMSG_DATA(hdr
);
464 return ifa
->ifa_index
== ifindex
;
467 static bool check_route(struct nlmsghdr
*hdr
, int ifindex
)
469 struct rtmsg
*r
= NLMSG_DATA(hdr
);
470 struct nlattr
*tb
[__RTA_MAX
];
472 if (r
->rtm_protocol
== RTPROT_KERNEL
&&
473 r
->rtm_family
== AF_INET6
)
476 nlmsg_parse(hdr
, sizeof(struct rtmsg
), tb
, __RTA_MAX
- 1, NULL
);
480 return *(int *)RTA_DATA(tb
[RTA_OIF
]) == ifindex
;
483 static bool check_rule(struct nlmsghdr
*hdr
, int ifindex
)
488 static int cb_clear_event(struct nl_msg
*msg
, void *arg
)
490 struct clear_data
*clr
= arg
;
491 struct nlmsghdr
*hdr
= nlmsg_hdr(msg
);
492 bool (*cb
)(struct nlmsghdr
*, int ifindex
);
498 if (hdr
->nlmsg_type
!= RTM_NEWADDR
)
505 if (hdr
->nlmsg_type
!= RTM_NEWROUTE
)
512 if (hdr
->nlmsg_type
!= RTM_NEWRULE
)
521 if (!cb(hdr
, clr
->dev
? clr
->dev
->ifindex
: 0))
524 if (type
== RTM_DELRULE
)
525 D(SYSTEM
, "Remove a rule\n");
527 D(SYSTEM
, "Remove %s from device %s\n",
528 type
== RTM_DELADDR
? "an address" : "a route",
530 memcpy(nlmsg_hdr(clr
->msg
), hdr
, hdr
->nlmsg_len
);
531 hdr
= nlmsg_hdr(clr
->msg
);
532 hdr
->nlmsg_type
= type
;
533 hdr
->nlmsg_flags
= NLM_F_REQUEST
;
535 nl_socket_disable_auto_ack(sock_rtnl
);
536 nl_send_auto_complete(sock_rtnl
, clr
->msg
);
537 nl_socket_enable_auto_ack(sock_rtnl
);
543 cb_finish_event(struct nl_msg
*msg
, void *arg
)
551 error_handler(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
554 *pending
= err
->error
;
559 system_if_clear_entries(struct device
*dev
, int type
, int af
)
561 struct clear_data clr
;
562 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
565 .rtm_flags
= RTM_F_CLONED
,
567 int flags
= NLM_F_DUMP
;
576 clr
.size
= sizeof(struct rtgenmsg
);
579 clr
.size
= sizeof(struct rtmsg
);
588 clr
.msg
= nlmsg_alloc_simple(type
, flags
);
592 nlmsg_append(clr
.msg
, &rtm
, clr
.size
, 0);
593 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_clear_event
, &clr
);
594 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, cb_finish_event
, &pending
);
595 nl_cb_err(cb
, NL_CB_CUSTOM
, error_handler
, &pending
);
597 nl_send_auto_complete(sock_rtnl
, clr
.msg
);
599 nl_recvmsgs(sock_rtnl
, cb
);
607 * Clear bridge (membership) state and bring down device
609 void system_if_clear_state(struct device
*dev
)
611 static char buf
[256];
617 device_set_ifindex(dev
, system_if_resolve(dev
));
621 system_if_flags(dev
->ifname
, 0, IFF_UP
);
623 if (system_is_bridge(dev
->ifname
, buf
, sizeof(buf
))) {
624 D(SYSTEM
, "Delete existing bridge named '%s'\n", dev
->ifname
);
625 system_bridge_delbr(dev
);
629 bridge
= system_get_bridge(dev
->ifname
, buf
, sizeof(buf
));
631 D(SYSTEM
, "Remove device '%s' from bridge '%s'\n", dev
->ifname
, bridge
);
632 system_bridge_if(bridge
, dev
, SIOCBRDELIF
, NULL
);
635 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET
);
636 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET
);
637 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET6
);
638 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET6
);
639 system_set_disable_ipv6(dev
, "0");
642 static inline unsigned long
643 sec_to_jiffies(int val
)
645 return (unsigned long) val
* 100;
648 int system_bridge_addbr(struct device
*bridge
, struct bridge_config
*cfg
)
650 unsigned long args
[4] = {};
652 if (ioctl(sock_ioctl
, SIOCBRADDBR
, bridge
->ifname
) < 0)
655 args
[0] = BRCTL_SET_BRIDGE_STP_STATE
;
656 args
[1] = !!cfg
->stp
;
657 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
659 args
[0] = BRCTL_SET_BRIDGE_FORWARD_DELAY
;
660 args
[1] = sec_to_jiffies(cfg
->forward_delay
);
661 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
663 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_snooping",
664 bridge
->ifname
, cfg
->igmp_snoop
? "1" : "0");
666 args
[0] = BRCTL_SET_BRIDGE_PRIORITY
;
667 args
[1] = cfg
->priority
;
668 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
670 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
) {
671 args
[0] = BRCTL_SET_AGEING_TIME
;
672 args
[1] = sec_to_jiffies(cfg
->ageing_time
);
673 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
676 if (cfg
->flags
& BRIDGE_OPT_HELLO_TIME
) {
677 args
[0] = BRCTL_SET_BRIDGE_HELLO_TIME
;
678 args
[1] = sec_to_jiffies(cfg
->hello_time
);
679 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
682 if (cfg
->flags
& BRIDGE_OPT_MAX_AGE
) {
683 args
[0] = BRCTL_SET_BRIDGE_MAX_AGE
;
684 args
[1] = sec_to_jiffies(cfg
->max_age
);
685 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
691 int system_macvlan_add(struct device
*macvlan
, struct device
*dev
, struct macvlan_config
*cfg
)
694 struct nlattr
*linkinfo
, *data
;
695 struct ifinfomsg iim
= { .ifi_family
= AF_INET
};
696 int ifindex
= system_if_resolve(dev
);
698 static const struct {
700 enum macvlan_mode val
;
702 { "private", MACVLAN_MODE_PRIVATE
},
703 { "vepa", MACVLAN_MODE_VEPA
},
704 { "bridge", MACVLAN_MODE_BRIDGE
},
705 { "passthru", MACVLAN_MODE_PASSTHRU
},
711 msg
= nlmsg_alloc_simple(RTM_NEWLINK
, NLM_F_REQUEST
| NLM_F_CREATE
| NLM_F_EXCL
);
716 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
718 if (cfg
->flags
& MACVLAN_OPT_MACADDR
)
719 nla_put(msg
, IFLA_ADDRESS
, sizeof(cfg
->macaddr
), cfg
->macaddr
);
720 nla_put(msg
, IFLA_IFNAME
, IFNAMSIZ
, macvlan
->ifname
);
721 nla_put_u32(msg
, IFLA_LINK
, ifindex
);
723 if (!(linkinfo
= nla_nest_start(msg
, IFLA_LINKINFO
)))
724 goto nla_put_failure
;
726 nla_put(msg
, IFLA_INFO_KIND
, strlen("macvlan"), "macvlan");
728 if (!(data
= nla_nest_start(msg
, IFLA_INFO_DATA
)))
729 goto nla_put_failure
;
732 for (i
= 0; i
< ARRAY_SIZE(modes
); i
++) {
733 if (strcmp(cfg
->mode
, modes
[i
].name
) != 0)
736 nla_put_u32(msg
, IFLA_MACVLAN_MODE
, modes
[i
].val
);
741 nla_nest_end(msg
, data
);
742 nla_nest_end(msg
, linkinfo
);
744 rv
= system_rtnl_call(msg
);
746 D(SYSTEM
, "Error adding macvlan '%s' over '%s': %d\n", macvlan
->ifname
, dev
->ifname
, rv
);
755 int system_macvlan_del(struct device
*macvlan
)
758 struct ifinfomsg iim
;
760 iim
.ifi_family
= AF_INET
;
763 msg
= nlmsg_alloc_simple(RTM_DELLINK
, 0);
768 nlmsg_append(msg
, &iim
, sizeof(iim
), 0);
770 nla_put(msg
, IFLA_INFO_KIND
, strlen("macvlan"), "macvlan");
771 nla_put(msg
, IFLA_IFNAME
, sizeof(macvlan
->ifname
), macvlan
->ifname
);
773 system_rtnl_call(msg
);
778 static int system_vlan(struct device
*dev
, int id
)
780 struct vlan_ioctl_args ifr
= {
781 .cmd
= SET_VLAN_NAME_TYPE_CMD
,
782 .u
.name_type
= VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
,
785 ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
788 ifr
.cmd
= DEL_VLAN_CMD
;
791 ifr
.cmd
= ADD_VLAN_CMD
;
794 strncpy(ifr
.device1
, dev
->ifname
, sizeof(ifr
.device1
));
795 return ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
798 int system_vlan_add(struct device
*dev
, int id
)
800 return system_vlan(dev
, id
);
803 int system_vlan_del(struct device
*dev
)
805 return system_vlan(dev
, -1);
809 system_if_get_settings(struct device
*dev
, struct device_settings
*s
)
814 memset(&ifr
, 0, sizeof(ifr
));
815 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
817 if (ioctl(sock_ioctl
, SIOCGIFMTU
, &ifr
) == 0) {
818 s
->mtu
= ifr
.ifr_mtu
;
819 s
->flags
|= DEV_OPT_MTU
;
822 if (ioctl(sock_ioctl
, SIOCGIFTXQLEN
, &ifr
) == 0) {
823 s
->txqueuelen
= ifr
.ifr_qlen
;
824 s
->flags
|= DEV_OPT_TXQUEUELEN
;
827 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0) {
828 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
.sa_data
, sizeof(s
->macaddr
));
829 s
->flags
|= DEV_OPT_MACADDR
;
832 if (!system_get_disable_ipv6(dev
, buf
, sizeof(buf
))) {
833 s
->ipv6
= !strtoul(buf
, NULL
, 0);
834 s
->flags
|= DEV_OPT_IPV6
;
839 system_if_apply_settings(struct device
*dev
, struct device_settings
*s
, unsigned int apply_mask
)
846 memset(&ifr
, 0, sizeof(ifr
));
847 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
848 if (s
->flags
& DEV_OPT_MTU
& apply_mask
) {
849 ifr
.ifr_mtu
= s
->mtu
;
850 if (ioctl(sock_ioctl
, SIOCSIFMTU
, &ifr
) < 0)
851 s
->flags
&= ~DEV_OPT_MTU
;
853 if (s
->flags
& DEV_OPT_TXQUEUELEN
& apply_mask
) {
854 ifr
.ifr_qlen
= s
->txqueuelen
;
855 if (ioctl(sock_ioctl
, SIOCSIFTXQLEN
, &ifr
) < 0)
856 s
->flags
&= ~DEV_OPT_TXQUEUELEN
;
858 if ((s
->flags
& DEV_OPT_MACADDR
& apply_mask
) && !dev
->external
) {
859 ifr
.ifr_hwaddr
.sa_family
= ARPHRD_ETHER
;
860 memcpy(&ifr
.ifr_hwaddr
.sa_data
, s
->macaddr
, sizeof(s
->macaddr
));
861 if (ioctl(sock_ioctl
, SIOCSIFHWADDR
, &ifr
) < 0)
862 s
->flags
&= ~DEV_OPT_MACADDR
;
864 if (s
->flags
& DEV_OPT_IPV6
& apply_mask
)
865 system_set_disable_ipv6(dev
, s
->ipv6
? "0" : "1");
868 int system_if_up(struct device
*dev
)
870 system_if_get_settings(dev
, &dev
->orig_settings
);
871 system_if_apply_settings(dev
, &dev
->settings
, dev
->settings
.flags
);
872 device_set_ifindex(dev
, system_if_resolve(dev
));
873 return system_if_flags(dev
->ifname
, IFF_UP
, 0);
876 int system_if_down(struct device
*dev
)
878 int ret
= system_if_flags(dev
->ifname
, 0, IFF_UP
);
879 dev
->orig_settings
.flags
&= dev
->settings
.flags
;
880 system_if_apply_settings(dev
, &dev
->orig_settings
, dev
->orig_settings
.flags
);
884 struct if_check_data
{
890 static int cb_if_check_valid(struct nl_msg
*msg
, void *arg
)
892 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
893 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
894 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
896 if (nh
->nlmsg_type
!= RTM_NEWLINK
)
899 device_set_present(chk
->dev
, ifi
->ifi_index
> 0 ? true : false);
900 device_set_link(chk
->dev
, ifi
->ifi_flags
& IFF_LOWER_UP
? true : false);
905 static int cb_if_check_ack(struct nl_msg
*msg
, void *arg
)
907 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
912 static int cb_if_check_error(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
914 struct if_check_data
*chk
= (struct if_check_data
*)arg
;
916 device_set_present(chk
->dev
, false);
917 device_set_link(chk
->dev
, false);
918 chk
->pending
= err
->error
;
923 int system_if_check(struct device
*dev
)
925 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
927 struct ifinfomsg ifi
= {
928 .ifi_family
= AF_UNSPEC
,
931 struct if_check_data chk
= {
937 msg
= nlmsg_alloc_simple(RTM_GETLINK
, 0);
938 if (!msg
|| nlmsg_append(msg
, &ifi
, sizeof(ifi
), 0) ||
939 nla_put_string(msg
, IFLA_IFNAME
, dev
->ifname
))
942 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_if_check_valid
, &chk
);
943 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, cb_if_check_ack
, &chk
);
944 nl_cb_err(cb
, NL_CB_CUSTOM
, cb_if_check_error
, &chk
);
946 nl_send_auto_complete(sock_rtnl
, msg
);
947 while (chk
.pending
> 0)
948 nl_recvmsgs(sock_rtnl
, cb
);
959 system_if_get_parent(struct device
*dev
)
961 char buf
[64], *devname
;
962 int ifindex
, iflink
, len
;
965 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/iflink", dev
->ifname
);
970 len
= fread(buf
, 1, sizeof(buf
) - 1, f
);
977 iflink
= strtoul(buf
, NULL
, 0);
978 ifindex
= system_if_resolve(dev
);
979 if (!iflink
|| iflink
== ifindex
)
982 devname
= if_indextoname(iflink
, buf
);
986 return device_get(devname
, true);
990 read_string_file(int dir_fd
, const char *file
, char *buf
, int len
)
996 fd
= openat(dir_fd
, file
, O_RDONLY
);
1001 len
= read(fd
, buf
, len
- 1);
1005 } else if (len
> 0) {
1008 c
= strchr(buf
, '\n');
1021 read_uint64_file(int dir_fd
, const char *file
, uint64_t *val
)
1026 ret
= read_string_file(dir_fd
, file
, buf
, sizeof(buf
));
1028 *val
= strtoull(buf
, NULL
, 0);
1033 /* Assume advertised flags == supported flags */
1034 static const struct {
1037 } ethtool_link_modes
[] = {
1038 { ADVERTISED_10baseT_Half
, "10H" },
1039 { ADVERTISED_10baseT_Full
, "10F" },
1040 { ADVERTISED_100baseT_Half
, "100H" },
1041 { ADVERTISED_100baseT_Full
, "100F" },
1042 { ADVERTISED_1000baseT_Half
, "1000H" },
1043 { ADVERTISED_1000baseT_Full
, "1000F" },
1046 static void system_add_link_modes(struct blob_buf
*b
, __u32 mask
)
1049 for (i
= 0; i
< ARRAY_SIZE(ethtool_link_modes
); i
++) {
1050 if (mask
& ethtool_link_modes
[i
].mask
)
1051 blobmsg_add_string(b
, NULL
, ethtool_link_modes
[i
].name
);
1056 system_if_force_external(const char *ifname
)
1061 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/phy80211", ifname
);
1062 return stat(buf
, &s
) == 0;
1066 system_if_dump_info(struct device
*dev
, struct blob_buf
*b
)
1068 struct ethtool_cmd ecmd
;
1074 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s", dev
->ifname
);
1075 dir_fd
= open(buf
, O_DIRECTORY
);
1077 memset(&ecmd
, 0, sizeof(ecmd
));
1078 memset(&ifr
, 0, sizeof(ifr
));
1079 strcpy(ifr
.ifr_name
, dev
->ifname
);
1080 ifr
.ifr_data
= (caddr_t
) &ecmd
;
1081 ecmd
.cmd
= ETHTOOL_GSET
;
1083 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) == 0) {
1084 c
= blobmsg_open_array(b
, "link-advertising");
1085 system_add_link_modes(b
, ecmd
.advertising
);
1086 blobmsg_close_array(b
, c
);
1088 c
= blobmsg_open_array(b
, "link-supported");
1089 system_add_link_modes(b
, ecmd
.supported
);
1090 blobmsg_close_array(b
, c
);
1092 s
= blobmsg_alloc_string_buffer(b
, "speed", 8);
1093 snprintf(s
, 8, "%d%c", ethtool_cmd_speed(&ecmd
),
1094 ecmd
.duplex
== DUPLEX_HALF
? 'H' : 'F');
1095 blobmsg_add_string_buffer(b
);
1103 system_if_dump_stats(struct device
*dev
, struct blob_buf
*b
)
1105 const char *const counters
[] = {
1106 "collisions", "rx_frame_errors", "tx_compressed",
1107 "multicast", "rx_length_errors", "tx_dropped",
1108 "rx_bytes", "rx_missed_errors", "tx_errors",
1109 "rx_compressed", "rx_over_errors", "tx_fifo_errors",
1110 "rx_crc_errors", "rx_packets", "tx_heartbeat_errors",
1111 "rx_dropped", "tx_aborted_errors", "tx_packets",
1112 "rx_errors", "tx_bytes", "tx_window_errors",
1113 "rx_fifo_errors", "tx_carrier_errors",
1120 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/statistics", dev
->ifname
);
1121 stats_dir
= open(buf
, O_DIRECTORY
);
1125 for (i
= 0; i
< ARRAY_SIZE(counters
); i
++)
1126 if (read_uint64_file(stats_dir
, counters
[i
], &val
))
1127 blobmsg_add_u64(b
, counters
[i
], val
);
1133 static int system_addr(struct device
*dev
, struct device_addr
*addr
, int cmd
)
1135 bool v4
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
);
1136 int alen
= v4
? 4 : 16;
1137 unsigned int flags
= 0;
1138 struct ifaddrmsg ifa
= {
1139 .ifa_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
1140 .ifa_prefixlen
= addr
->mask
,
1141 .ifa_index
= dev
->ifindex
,
1145 if (cmd
== RTM_NEWADDR
)
1146 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
1148 msg
= nlmsg_alloc_simple(cmd
, flags
);
1152 nlmsg_append(msg
, &ifa
, sizeof(ifa
), 0);
1153 nla_put(msg
, IFA_LOCAL
, alen
, &addr
->addr
);
1155 if (addr
->broadcast
)
1156 nla_put_u32(msg
, IFA_BROADCAST
, addr
->broadcast
);
1157 if (addr
->point_to_point
)
1158 nla_put_u32(msg
, IFA_ADDRESS
, addr
->point_to_point
);
1160 time_t now
= system_get_rtime();
1161 struct ifa_cacheinfo cinfo
= {0xffffffffU
, 0xffffffffU
, 0, 0};
1163 if (addr
->preferred_until
) {
1164 int64_t preferred
= addr
->preferred_until
- now
;
1167 else if (preferred
> UINT32_MAX
)
1168 preferred
= UINT32_MAX
;
1170 cinfo
.ifa_prefered
= preferred
;
1173 if (addr
->valid_until
) {
1174 int64_t valid
= addr
->valid_until
- now
;
1177 else if (valid
> UINT32_MAX
)
1180 cinfo
.ifa_valid
= valid
;
1183 nla_put(msg
, IFA_CACHEINFO
, sizeof(cinfo
), &cinfo
);
1186 return system_rtnl_call(msg
);
1189 int system_add_address(struct device
*dev
, struct device_addr
*addr
)
1191 return system_addr(dev
, addr
, RTM_NEWADDR
);
1194 int system_del_address(struct device
*dev
, struct device_addr
*addr
)
1196 return system_addr(dev
, addr
, RTM_DELADDR
);
1199 static int system_rt(struct device
*dev
, struct device_route
*route
, int cmd
)
1201 int alen
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
1203 unsigned int flags
= 0;
1206 have_gw
= !!route
->nexthop
.in
.s_addr
;
1208 have_gw
= route
->nexthop
.in6
.s6_addr32
[0] ||
1209 route
->nexthop
.in6
.s6_addr32
[1] ||
1210 route
->nexthop
.in6
.s6_addr32
[2] ||
1211 route
->nexthop
.in6
.s6_addr32
[3];
1213 unsigned char scope
= (cmd
== RTM_DELROUTE
) ? RT_SCOPE_NOWHERE
:
1214 (have_gw
) ? RT_SCOPE_UNIVERSE
: RT_SCOPE_LINK
;
1216 unsigned int table
= (route
->flags
& (DEVROUTE_TABLE
| DEVROUTE_SRCTABLE
))
1217 ? route
->table
: RT_TABLE_MAIN
;
1219 struct rtmsg rtm
= {
1220 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
1221 .rtm_dst_len
= route
->mask
,
1222 .rtm_src_len
= route
->sourcemask
,
1223 .rtm_table
= (table
< 256) ? table
: RT_TABLE_UNSPEC
,
1224 .rtm_protocol
= (route
->flags
& DEVADDR_KERNEL
) ? RTPROT_KERNEL
: RTPROT_STATIC
,
1226 .rtm_type
= (cmd
== RTM_DELROUTE
) ? 0: RTN_UNICAST
,
1230 if (cmd
== RTM_NEWROUTE
) {
1231 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
1233 if (!dev
) { // Add null-route
1234 rtm
.rtm_scope
= RT_SCOPE_UNIVERSE
;
1235 rtm
.rtm_type
= RTN_UNREACHABLE
;
1239 msg
= nlmsg_alloc_simple(cmd
, flags
);
1243 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
1246 nla_put(msg
, RTA_DST
, alen
, &route
->addr
);
1248 if (route
->sourcemask
)
1249 nla_put(msg
, RTA_SRC
, alen
, &route
->source
);
1251 if (route
->metric
> 0)
1252 nla_put_u32(msg
, RTA_PRIORITY
, route
->metric
);
1255 nla_put(msg
, RTA_GATEWAY
, alen
, &route
->nexthop
);
1258 nla_put_u32(msg
, RTA_OIF
, dev
->ifindex
);
1261 nla_put_u32(msg
, RTA_TABLE
, table
);
1263 if (route
->flags
& DEVROUTE_MTU
) {
1264 struct nlattr
*metrics
;
1266 if (!(metrics
= nla_nest_start(msg
, RTA_METRICS
)))
1267 goto nla_put_failure
;
1269 nla_put_u32(msg
, RTAX_MTU
, route
->mtu
);
1271 nla_nest_end(msg
, metrics
);
1274 return system_rtnl_call(msg
);
1281 int system_add_route(struct device
*dev
, struct device_route
*route
)
1283 return system_rt(dev
, route
, RTM_NEWROUTE
);
1286 int system_del_route(struct device
*dev
, struct device_route
*route
)
1288 return system_rt(dev
, route
, RTM_DELROUTE
);
1291 int system_flush_routes(void)
1293 const char *names
[] = {
1294 "/proc/sys/net/ipv4/route/flush",
1295 "/proc/sys/net/ipv6/route/flush"
1299 for (i
= 0; i
< ARRAY_SIZE(names
); i
++) {
1300 fd
= open(names
[i
], O_WRONLY
);
1304 if (write(fd
, "-1", 2)) {}
1310 bool system_resolve_rt_table(const char *name
, unsigned int *id
)
1314 unsigned int n
, table
= RT_TABLE_UNSPEC
;
1316 /* first try to parse table as number */
1317 if ((n
= strtoul(name
, &e
, 0)) > 0 && !*e
)
1320 /* handle well known aliases */
1321 else if (!strcmp(name
, "default"))
1322 table
= RT_TABLE_DEFAULT
;
1323 else if (!strcmp(name
, "main"))
1324 table
= RT_TABLE_MAIN
;
1325 else if (!strcmp(name
, "local"))
1326 table
= RT_TABLE_LOCAL
;
1328 /* try to look up name in /etc/iproute2/rt_tables */
1329 else if ((f
= fopen("/etc/iproute2/rt_tables", "r")) != NULL
)
1331 while (fgets(buf
, sizeof(buf
) - 1, f
) != NULL
)
1333 if ((e
= strtok(buf
, " \t\n")) == NULL
|| *e
== '#')
1336 n
= strtoul(e
, NULL
, 10);
1337 e
= strtok(NULL
, " \t\n");
1339 if (e
&& !strcmp(e
, name
))
1349 if (table
== RT_TABLE_UNSPEC
)
1352 /* do not consider main table special */
1353 if (table
== RT_TABLE_MAIN
)
1354 table
= RT_TABLE_UNSPEC
;
1360 static int system_iprule(struct iprule
*rule
, int cmd
)
1362 int alen
= ((rule
->flags
& IPRULE_FAMILY
) == IPRULE_INET4
) ? 4 : 16;
1365 struct rtmsg rtm
= {
1366 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
1367 .rtm_protocol
= RTPROT_STATIC
,
1368 .rtm_scope
= RT_SCOPE_UNIVERSE
,
1369 .rtm_table
= RT_TABLE_UNSPEC
,
1370 .rtm_type
= RTN_UNSPEC
,
1374 if (cmd
== RTM_NEWRULE
) {
1375 rtm
.rtm_type
= RTN_UNICAST
;
1376 rtm
.rtm_flags
|= NLM_F_REPLACE
| NLM_F_EXCL
;
1380 rtm
.rtm_flags
|= FIB_RULE_INVERT
;
1382 if (rule
->flags
& IPRULE_SRC
)
1383 rtm
.rtm_src_len
= rule
->src_mask
;
1385 if (rule
->flags
& IPRULE_DEST
)
1386 rtm
.rtm_dst_len
= rule
->dest_mask
;
1388 if (rule
->flags
& IPRULE_TOS
)
1389 rtm
.rtm_tos
= rule
->tos
;
1391 if (rule
->flags
& IPRULE_LOOKUP
) {
1392 if (rule
->lookup
< 256)
1393 rtm
.rtm_table
= rule
->lookup
;
1396 if (rule
->flags
& IPRULE_ACTION
)
1397 rtm
.rtm_type
= rule
->action
;
1398 else if (rule
->flags
& IPRULE_GOTO
)
1399 rtm
.rtm_type
= FR_ACT_GOTO
;
1400 else if (!(rule
->flags
& (IPRULE_LOOKUP
| IPRULE_ACTION
| IPRULE_GOTO
)))
1401 rtm
.rtm_type
= FR_ACT_NOP
;
1403 msg
= nlmsg_alloc_simple(cmd
, NLM_F_REQUEST
);
1408 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
1410 if (rule
->flags
& IPRULE_IN
)
1411 nla_put(msg
, FRA_IFNAME
, strlen(rule
->in_dev
) + 1, rule
->in_dev
);
1413 if (rule
->flags
& IPRULE_OUT
)
1414 nla_put(msg
, FRA_OIFNAME
, strlen(rule
->out_dev
) + 1, rule
->out_dev
);
1416 if (rule
->flags
& IPRULE_SRC
)
1417 nla_put(msg
, FRA_SRC
, alen
, &rule
->src_addr
);
1419 if (rule
->flags
& IPRULE_DEST
)
1420 nla_put(msg
, FRA_DST
, alen
, &rule
->dest_addr
);
1422 if (rule
->flags
& IPRULE_PRIORITY
)
1423 nla_put_u32(msg
, FRA_PRIORITY
, rule
->priority
);
1424 else if (cmd
== RTM_NEWRULE
)
1425 nla_put_u32(msg
, FRA_PRIORITY
, rule
->order
);
1427 if (rule
->flags
& IPRULE_FWMARK
)
1428 nla_put_u32(msg
, FRA_FWMARK
, rule
->fwmark
);
1430 if (rule
->flags
& IPRULE_FWMASK
)
1431 nla_put_u32(msg
, FRA_FWMASK
, rule
->fwmask
);
1433 if (rule
->flags
& IPRULE_LOOKUP
) {
1434 if (rule
->lookup
>= 256)
1435 nla_put_u32(msg
, FRA_TABLE
, rule
->lookup
);
1438 if (rule
->flags
& IPRULE_GOTO
)
1439 nla_put_u32(msg
, FRA_GOTO
, rule
->gotoid
);
1441 return system_rtnl_call(msg
);
1444 int system_add_iprule(struct iprule
*rule
)
1446 return system_iprule(rule
, RTM_NEWRULE
);
1449 int system_del_iprule(struct iprule
*rule
)
1451 return system_iprule(rule
, RTM_DELRULE
);
1454 int system_flush_iprules(void)
1459 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET
);
1460 system_if_clear_entries(NULL
, RTM_GETRULE
, AF_INET6
);
1462 memset(&rule
, 0, sizeof(rule
));
1465 rule
.flags
= IPRULE_INET4
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
1468 rule
.lookup
= RT_TABLE_LOCAL
;
1469 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
1471 rule
.priority
= 32766;
1472 rule
.lookup
= RT_TABLE_MAIN
;
1473 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
1475 rule
.priority
= 32767;
1476 rule
.lookup
= RT_TABLE_DEFAULT
;
1477 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
1480 rule
.flags
= IPRULE_INET6
| IPRULE_PRIORITY
| IPRULE_LOOKUP
;
1483 rule
.lookup
= RT_TABLE_LOCAL
;
1484 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
1486 rule
.priority
= 32766;
1487 rule
.lookup
= RT_TABLE_MAIN
;
1488 rv
|= system_iprule(&rule
, RTM_NEWRULE
);
1493 bool system_resolve_iprule_action(const char *action
, unsigned int *id
)
1498 if (!strcmp(action
, "local"))
1500 else if (!strcmp(action
, "nat"))
1502 else if (!strcmp(action
, "broadcast"))
1504 else if (!strcmp(action
, "anycast"))
1506 else if (!strcmp(action
, "multicast"))
1508 else if (!strcmp(action
, "prohibit"))
1510 else if (!strcmp(action
, "unreachable"))
1511 n
= RTN_UNREACHABLE
;
1512 else if (!strcmp(action
, "blackhole"))
1514 else if (!strcmp(action
, "xresolve"))
1516 else if (!strcmp(action
, "unicast"))
1518 else if (!strcmp(action
, "throw"))
1520 else if (!strcmp(action
, "failed_policy"))
1521 n
= RTN_FAILED_POLICY
;
1523 n
= strtoul(action
, &e
, 0);
1524 if (!e
|| *e
|| e
== action
|| n
> 255)
1532 time_t system_get_rtime(void)
1537 if (syscall(__NR_clock_gettime
, CLOCK_MONOTONIC
, &ts
) == 0)
1540 if (gettimeofday(&tv
, NULL
) == 0)
1547 #define IP_DF 0x4000
1550 static int tunnel_ioctl(const char *name
, int cmd
, void *p
)
1554 memset(&ifr
, 0, sizeof(ifr
));
1555 strncpy(ifr
.ifr_name
, name
, sizeof(ifr
.ifr_name
));
1556 ifr
.ifr_ifru
.ifru_data
= p
;
1557 return ioctl(sock_ioctl
, cmd
, &ifr
);
1560 int system_del_ip_tunnel(const char *name
)
1562 return tunnel_ioctl(name
, SIOCDELTUNNEL
, NULL
);
1565 int system_update_ipv6_mtu(struct device
*dev
, int mtu
)
1569 snprintf(buf
, sizeof(buf
), "/proc/sys/net/ipv6/conf/%s/mtu",
1572 int fd
= open(buf
, O_RDWR
);
1573 ssize_t len
= read(fd
, buf
, sizeof(buf
) - 1);
1580 if (!mtu
|| ret
<= mtu
)
1583 lseek(fd
, 0, SEEK_SET
);
1584 if (write(fd
, buf
, snprintf(buf
, sizeof(buf
), "%i", mtu
)) <= 0)
1592 int system_add_ip_tunnel(const char *name
, struct blob_attr
*attr
)
1594 struct blob_attr
*tb
[__TUNNEL_ATTR_MAX
];
1595 struct blob_attr
*cur
;
1599 system_del_ip_tunnel(name
);
1601 blobmsg_parse(tunnel_attr_list
.params
, __TUNNEL_ATTR_MAX
, tb
,
1602 blob_data(attr
), blob_len(attr
));
1604 if (!(cur
= tb
[TUNNEL_ATTR_TYPE
]))
1606 str
= blobmsg_data(cur
);
1608 if ((cur
= tb
[TUNNEL_ATTR_DF
]))
1609 set_df
= blobmsg_get_bool(cur
);
1611 unsigned int ttl
= 0;
1612 if ((cur
= tb
[TUNNEL_ATTR_TTL
])) {
1613 ttl
= blobmsg_get_u32(cur
);
1614 if (ttl
> 255 || (!set_df
&& ttl
))
1618 unsigned int link
= 0;
1619 if ((cur
= tb
[TUNNEL_ATTR_LINK
])) {
1620 struct interface
*iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
1624 if (iface
->l3_dev
.dev
)
1625 link
= iface
->l3_dev
.dev
->ifindex
;
1628 if (!strcmp(str
, "sit")) {
1629 struct ip_tunnel_parm p
= {
1634 .frag_off
= set_df
? htons(IP_DF
) : 0,
1635 .protocol
= IPPROTO_IPV6
,
1640 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
]) &&
1641 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.saddr
) < 1)
1644 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
]) &&
1645 inet_pton(AF_INET
, blobmsg_data(cur
), &p
.iph
.daddr
) < 1)
1648 strncpy(p
.name
, name
, sizeof(p
.name
));
1649 if (tunnel_ioctl("sit0", SIOCADDTUNNEL
, &p
) < 0)
1653 if ((cur
= tb
[TUNNEL_ATTR_6RD_PREFIX
])) {
1655 struct ip_tunnel_6rd p6
;
1657 memset(&p6
, 0, sizeof(p6
));
1659 if (!parse_ip_and_netmask(AF_INET6
, blobmsg_data(cur
),
1660 &p6
.prefix
, &mask
) || mask
> 128)
1662 p6
.prefixlen
= mask
;
1664 if ((cur
= tb
[TUNNEL_ATTR_6RD_RELAY_PREFIX
])) {
1665 if (!parse_ip_and_netmask(AF_INET
, blobmsg_data(cur
),
1666 &p6
.relay_prefix
, &mask
) || mask
> 32)
1668 p6
.relay_prefixlen
= mask
;
1671 if (tunnel_ioctl(name
, SIOCADD6RD
, &p6
) < 0) {
1672 system_del_ip_tunnel(name
);
1677 } else if (!strcmp(str
, "ipip6")) {
1678 struct ip6_tnl_parm p
= {
1680 .proto
= IPPROTO_IPIP
,
1681 .hop_limit
= (ttl
) ? ttl
: 64,
1685 if ((cur
= tb
[TUNNEL_ATTR_LOCAL
]) &&
1686 inet_pton(AF_INET6
, blobmsg_data(cur
), &p
.laddr
) < 1)
1689 if ((cur
= tb
[TUNNEL_ATTR_REMOTE
]) &&
1690 inet_pton(AF_INET6
, blobmsg_data(cur
), &p
.raddr
) < 1)
1693 strncpy(p
.name
, name
, sizeof(p
.name
));
1694 if (tunnel_ioctl("ip6tnl0", SIOCADDTUNNEL
, &p
) < 0)