3 #include <sys/socket.h>
6 #include <sys/syscall.h>
8 #include <linux/rtnetlink.h>
9 #include <linux/sockios.h>
10 #include <linux/if_vlan.h>
11 #include <linux/if_bridge.h>
12 #include <linux/ethtool.h>
20 #include <netlink/msg.h>
21 #include <netlink/attr.h>
22 #include <netlink/socket.h>
23 #include <libubox/uloop.h>
30 struct uloop_fd uloop
;
35 static int sock_ioctl
= -1;
36 static struct nl_sock
*sock_rtnl
= NULL
;
38 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
);
39 static void handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
);
42 handler_nl_event(struct uloop_fd
*u
, unsigned int events
)
44 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
45 nl_recvmsgs(ev
->sock
, ev
->cb
);
48 static struct nl_sock
*
49 create_socket(int protocol
, int groups
)
53 sock
= nl_socket_alloc();
58 nl_join_groups(sock
, groups
);
60 if (nl_connect(sock
, protocol
))
67 create_raw_event_socket(struct event_socket
*ev
, int protocol
, int groups
,
70 ev
->sock
= create_socket(protocol
, groups
);
74 ev
->uloop
.fd
= nl_socket_get_fd(ev
->sock
);
76 uloop_fd_add(&ev
->uloop
, ULOOP_READ
| ULOOP_EDGE_TRIGGER
);
81 create_event_socket(struct event_socket
*ev
, int protocol
,
82 int (*cb
)(struct nl_msg
*msg
, void *arg
))
84 // Prepare socket for link events
85 ev
->cb
= nl_cb_alloc(NL_CB_DEFAULT
);
89 nl_cb_set(ev
->cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb
, NULL
);
91 return create_raw_event_socket(ev
, protocol
, 0, handler_nl_event
);
96 static struct event_socket rtnl_event
;
97 static struct event_socket hotplug_event
;
99 sock_ioctl
= socket(AF_LOCAL
, SOCK_DGRAM
, 0);
100 fcntl(sock_ioctl
, F_SETFD
, fcntl(sock_ioctl
, F_GETFD
) | FD_CLOEXEC
);
102 // Prepare socket for routing / address control
103 sock_rtnl
= create_socket(NETLINK_ROUTE
, 0);
107 if (!create_event_socket(&rtnl_event
, NETLINK_ROUTE
, cb_rtnl_event
))
110 if (!create_raw_event_socket(&hotplug_event
, NETLINK_KOBJECT_UEVENT
, 1,
111 handle_hotplug_event
))
114 // Receive network link events form kernel
115 nl_socket_add_membership(rtnl_event
.sock
, RTNLGRP_LINK
);
120 static void system_set_sysctl(const char *path
, const char *val
)
124 fd
= open(path
, O_WRONLY
);
128 write(fd
, val
, strlen(val
));
132 static void system_set_dev_sysctl(const char *path
, const char *device
, const char *val
)
134 static char buf
[256];
136 snprintf(buf
, sizeof(buf
), path
, val
);
137 system_set_sysctl(buf
, val
);
140 static void system_set_disable_ipv6(struct device
*dev
, const char *val
)
142 system_set_dev_sysctl("/proc/sys/net/ipv6/conf/%s/disable_ipv6", dev
->ifname
, val
);
145 // Evaluate netlink messages
146 static int cb_rtnl_event(struct nl_msg
*msg
, void *arg
)
148 struct nlmsghdr
*nh
= nlmsg_hdr(msg
);
149 struct ifinfomsg
*ifi
= NLMSG_DATA(nh
);
150 struct nlattr
*nla
[__IFLA_MAX
];
152 if (nh
->nlmsg_type
!= RTM_DELLINK
&& nh
->nlmsg_type
!= RTM_NEWLINK
)
155 nlmsg_parse(nh
, sizeof(*ifi
), nla
, __IFLA_MAX
- 1, NULL
);
156 if (!nla
[IFLA_IFNAME
])
159 struct device
*dev
= device_get(RTA_DATA(nla
[IFLA_IFNAME
]), false);
163 dev
->ifindex
= ifi
->ifi_index
;
164 /* TODO: parse link status */
171 handle_hotplug_msg(char *data
, int size
)
173 const char *subsystem
= NULL
, *interface
= NULL
;
174 char *cur
, *end
, *sep
;
179 if (!strncmp(data
, "add@", 4))
181 else if (!strncmp(data
, "remove@", 7))
186 skip
= strlen(data
) + 1;
189 for (cur
= data
+ skip
; cur
< end
; cur
+= skip
) {
190 skip
= strlen(cur
) + 1;
192 sep
= strchr(cur
, '=');
197 if (!strcmp(cur
, "INTERFACE"))
199 else if (!strcmp(cur
, "SUBSYSTEM")) {
201 if (strcmp(subsystem
, "net") != 0)
204 if (subsystem
&& interface
)
210 dev
= device_get(interface
, false);
214 if (dev
->type
!= &simple_device_type
)
217 device_set_present(dev
, add
);
221 handle_hotplug_event(struct uloop_fd
*u
, unsigned int events
)
223 struct event_socket
*ev
= container_of(u
, struct event_socket
, uloop
);
224 struct sockaddr_nl nla
;
225 unsigned char *buf
= NULL
;
228 while ((size
= nl_recv(ev
->sock
, &nla
, &buf
, NULL
)) > 0) {
230 handle_hotplug_msg((char *) buf
, size
);
236 static int system_rtnl_call(struct nl_msg
*msg
)
238 int s
= -(nl_send_auto_complete(sock_rtnl
, msg
)
239 || nl_wait_for_ack(sock_rtnl
));
244 int system_bridge_delbr(struct device
*bridge
)
246 return ioctl(sock_ioctl
, SIOCBRDELBR
, bridge
->ifname
);
249 static int system_bridge_if(const char *bridge
, struct device
*dev
, int cmd
, void *data
)
253 ifr
.ifr_ifindex
= dev
->ifindex
;
256 strncpy(ifr
.ifr_name
, bridge
, sizeof(ifr
.ifr_name
));
257 return ioctl(sock_ioctl
, cmd
, &ifr
);
260 int system_bridge_addif(struct device
*bridge
, struct device
*dev
)
262 system_set_disable_ipv6(dev
, "1");
263 return system_bridge_if(bridge
->ifname
, dev
, SIOCBRADDIF
, NULL
);
266 int system_bridge_delif(struct device
*bridge
, struct device
*dev
)
268 system_set_disable_ipv6(dev
, "0");
269 return system_bridge_if(bridge
->ifname
, dev
, SIOCBRDELIF
, NULL
);
272 static bool system_is_bridge(const char *name
, char *buf
, int buflen
)
276 snprintf(buf
, buflen
, "/sys/devices/virtual/net/%s/bridge", name
);
277 if (stat(buf
, &st
) < 0)
283 static char *system_get_bridge(const char *name
, char *buf
, int buflen
)
289 snprintf(buf
, buflen
, "/sys/devices/virtual/net/*/brif/%s/bridge", name
);
290 if (glob(buf
, GLOB_NOSORT
, NULL
, &gl
) < 0)
293 if (gl
.gl_pathc
== 0)
296 len
= readlink(gl
.gl_pathv
[0], buf
, buflen
);
301 path
= strrchr(buf
, '/');
308 static int system_if_resolve(struct device
*dev
)
311 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
312 if (!ioctl(sock_ioctl
, SIOCGIFINDEX
, &ifr
))
313 return ifr
.ifr_ifindex
;
318 static int system_if_flags(const char *ifname
, unsigned add
, unsigned rem
)
321 strncpy(ifr
.ifr_name
, ifname
, sizeof(ifr
.ifr_name
));
322 ioctl(sock_ioctl
, SIOCGIFFLAGS
, &ifr
);
323 ifr
.ifr_flags
|= add
;
324 ifr
.ifr_flags
&= ~rem
;
325 return ioctl(sock_ioctl
, SIOCSIFFLAGS
, &ifr
);
337 static bool check_ifaddr(struct nlmsghdr
*hdr
, int ifindex
)
339 struct ifaddrmsg
*ifa
= NLMSG_DATA(hdr
);
341 return ifa
->ifa_index
== ifindex
;
344 static bool check_route(struct nlmsghdr
*hdr
, int ifindex
)
346 struct nlattr
*tb
[__RTA_MAX
];
348 nlmsg_parse(hdr
, sizeof(struct rtmsg
), tb
, __RTA_MAX
- 1, NULL
);
352 return *(int *)RTA_DATA(tb
[RTA_OIF
]) == ifindex
;
355 static int cb_clear_event(struct nl_msg
*msg
, void *arg
)
357 struct clear_data
*clr
= arg
;
358 struct nlmsghdr
*hdr
= nlmsg_hdr(msg
);
359 bool (*cb
)(struct nlmsghdr
*, int ifindex
);
365 if (hdr
->nlmsg_type
!= RTM_NEWADDR
)
372 if (hdr
->nlmsg_type
!= RTM_NEWROUTE
)
381 if (!cb(hdr
, clr
->dev
->ifindex
))
384 D(SYSTEM
, "Remove %s from device %s\n",
385 type
== RTM_DELADDR
? "an address" : "a route",
387 memcpy(nlmsg_hdr(clr
->msg
), hdr
, hdr
->nlmsg_len
);
388 hdr
= nlmsg_hdr(clr
->msg
);
389 hdr
->nlmsg_type
= type
;
390 hdr
->nlmsg_flags
= NLM_F_REQUEST
;
392 if (!nl_send_auto_complete(sock_rtnl
, clr
->msg
))
393 nl_wait_for_ack(sock_rtnl
);
399 cb_finish_event(struct nl_msg
*msg
, void *arg
)
407 error_handler(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
, void *arg
)
410 *pending
= err
->error
;
415 system_if_clear_entries(struct device
*dev
, int type
, int af
)
417 struct clear_data clr
;
418 struct nl_cb
*cb
= nl_cb_alloc(NL_CB_DEFAULT
);
421 .rtm_flags
= RTM_F_CLONED
,
423 int flags
= NLM_F_DUMP
;
431 clr
.size
= sizeof(struct rtgenmsg
);
434 clr
.size
= sizeof(struct rtmsg
);
443 clr
.msg
= nlmsg_alloc_simple(type
, flags
);
447 nlmsg_append(clr
.msg
, &rtm
, clr
.size
, 0);
448 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, cb_clear_event
, &clr
);
449 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, cb_finish_event
, &pending
);
450 nl_cb_err(cb
, NL_CB_CUSTOM
, error_handler
, &pending
);
452 nl_send_auto_complete(sock_rtnl
, clr
.msg
);
454 nl_recvmsgs(sock_rtnl
, cb
);
462 * Clear bridge (membership) state and bring down device
464 void system_if_clear_state(struct device
*dev
)
466 static char buf
[256];
472 dev
->ifindex
= system_if_resolve(dev
);
476 system_if_flags(dev
->ifname
, 0, IFF_UP
);
478 if (system_is_bridge(dev
->ifname
, buf
, sizeof(buf
))) {
479 D(SYSTEM
, "Delete existing bridge named '%s'\n", dev
->ifname
);
480 system_bridge_delbr(dev
);
484 bridge
= system_get_bridge(dev
->ifname
, buf
, sizeof(buf
));
486 D(SYSTEM
, "Remove device '%s' from bridge '%s'\n", dev
->ifname
, bridge
);
487 system_bridge_if(bridge
, dev
, SIOCBRDELIF
, NULL
);
490 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET
);
491 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET
);
492 system_if_clear_entries(dev
, RTM_GETROUTE
, AF_INET6
);
493 system_if_clear_entries(dev
, RTM_GETADDR
, AF_INET6
);
494 system_set_disable_ipv6(dev
, "0");
497 static inline unsigned long
498 sec_to_jiffies(int val
)
500 return (unsigned long) val
* 100;
503 int system_bridge_addbr(struct device
*bridge
, struct bridge_config
*cfg
)
505 unsigned long args
[4] = {};
507 if (ioctl(sock_ioctl
, SIOCBRADDBR
, bridge
->ifname
) < 0)
510 args
[0] = BRCTL_SET_BRIDGE_STP_STATE
;
511 args
[1] = !!cfg
->stp
;
512 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
514 args
[0] = BRCTL_SET_BRIDGE_FORWARD_DELAY
;
515 args
[1] = sec_to_jiffies(cfg
->forward_delay
);
516 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
518 system_set_dev_sysctl("/sys/devices/virtual/net/%s/bridge/multicast_snooping",
519 bridge
->ifname
, cfg
->igmp_snoop
? "1" : "0");
521 if (cfg
->flags
& BRIDGE_OPT_AGEING_TIME
) {
522 args
[0] = BRCTL_SET_AGEING_TIME
;
523 args
[1] = sec_to_jiffies(cfg
->ageing_time
);
524 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
527 if (cfg
->flags
& BRIDGE_OPT_HELLO_TIME
) {
528 args
[0] = BRCTL_SET_BRIDGE_HELLO_TIME
;
529 args
[1] = sec_to_jiffies(cfg
->hello_time
);
530 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
533 if (cfg
->flags
& BRIDGE_OPT_MAX_AGE
) {
534 args
[0] = BRCTL_SET_BRIDGE_MAX_AGE
;
535 args
[1] = sec_to_jiffies(cfg
->max_age
);
536 system_bridge_if(bridge
->ifname
, NULL
, SIOCDEVPRIVATE
, &args
);
542 static int system_vlan(struct device
*dev
, int id
)
544 struct vlan_ioctl_args ifr
= {
545 .cmd
= SET_VLAN_NAME_TYPE_CMD
,
546 .u
.name_type
= VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD
,
549 ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
552 ifr
.cmd
= DEL_VLAN_CMD
;
555 ifr
.cmd
= ADD_VLAN_CMD
;
558 strncpy(ifr
.device1
, dev
->ifname
, sizeof(ifr
.device1
));
559 return ioctl(sock_ioctl
, SIOCSIFVLAN
, &ifr
);
562 int system_vlan_add(struct device
*dev
, int id
)
564 return system_vlan(dev
, id
);
567 int system_vlan_del(struct device
*dev
)
569 return system_vlan(dev
, -1);
573 system_if_get_settings(struct device
*dev
, struct device_settings
*s
)
577 memset(&ifr
, 0, sizeof(ifr
));
578 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
580 if (ioctl(sock_ioctl
, SIOCGIFMTU
, &ifr
) == 0) {
581 s
->mtu
= ifr
.ifr_mtu
;
582 s
->flags
|= DEV_OPT_MTU
;
585 if (ioctl(sock_ioctl
, SIOCGIFTXQLEN
, &ifr
) == 0) {
586 s
->txqueuelen
= ifr
.ifr_qlen
;
587 s
->flags
|= DEV_OPT_TXQUEUELEN
;
590 if (ioctl(sock_ioctl
, SIOCGIFHWADDR
, &ifr
) == 0) {
591 memcpy(s
->macaddr
, &ifr
.ifr_hwaddr
, sizeof(s
->macaddr
));
592 s
->flags
|= DEV_OPT_MACADDR
;
597 system_if_apply_settings(struct device
*dev
, struct device_settings
*s
)
601 memset(&ifr
, 0, sizeof(ifr
));
602 strncpy(ifr
.ifr_name
, dev
->ifname
, sizeof(ifr
.ifr_name
));
603 if (s
->flags
& DEV_OPT_MTU
) {
604 ifr
.ifr_mtu
= s
->mtu
;
605 if (ioctl(sock_ioctl
, SIOCSIFMTU
, &ifr
) < 0)
606 s
->flags
&= ~DEV_OPT_MTU
;
608 if (s
->flags
& DEV_OPT_TXQUEUELEN
) {
609 ifr
.ifr_qlen
= s
->txqueuelen
;
610 if (ioctl(sock_ioctl
, SIOCSIFTXQLEN
, &ifr
) < 0)
611 s
->flags
&= ~DEV_OPT_TXQUEUELEN
;
613 if (s
->flags
& DEV_OPT_MACADDR
) {
614 memcpy(&ifr
.ifr_hwaddr
, s
->macaddr
, sizeof(s
->macaddr
));
615 if (ioctl(sock_ioctl
, SIOCSIFHWADDR
, &ifr
) < 0)
616 s
->flags
&= ~DEV_OPT_MACADDR
;
620 int system_if_up(struct device
*dev
)
622 system_if_get_settings(dev
, &dev
->orig_settings
);
623 system_if_apply_settings(dev
, &dev
->settings
);
624 dev
->ifindex
= system_if_resolve(dev
);
625 return system_if_flags(dev
->ifname
, IFF_UP
, 0);
628 int system_if_down(struct device
*dev
)
630 int ret
= system_if_flags(dev
->ifname
, 0, IFF_UP
);
631 system_if_apply_settings(dev
, &dev
->orig_settings
);
635 int system_if_check(struct device
*dev
)
637 device_set_present(dev
, (system_if_resolve(dev
) > 0));
642 system_if_get_parent(struct device
*dev
)
644 char buf
[64], *devname
;
645 int ifindex
, iflink
, len
;
648 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/iflink", dev
->ifname
);
653 len
= fread(buf
, 1, sizeof(buf
) - 1, f
);
660 iflink
= strtoul(buf
, NULL
, 0);
661 ifindex
= system_if_resolve(dev
);
662 if (!iflink
|| iflink
== ifindex
)
665 devname
= if_indextoname(iflink
, buf
);
669 return device_get(devname
, true);
673 read_string_file(int dir_fd
, const char *file
, char *buf
, int len
)
679 fd
= openat(dir_fd
, file
, O_RDONLY
);
684 len
= read(fd
, buf
, len
- 1);
688 } else if (len
> 0) {
691 c
= strchr(buf
, '\n');
704 read_int_file(int dir_fd
, const char *file
, int *val
)
709 ret
= read_string_file(dir_fd
, file
, buf
, sizeof(buf
));
711 *val
= strtoul(buf
, NULL
, 0);
716 /* Assume advertised flags == supported flags */
717 static const struct {
720 } ethtool_link_modes
[] = {
721 { ADVERTISED_10baseT_Half
, "10H" },
722 { ADVERTISED_10baseT_Full
, "10F" },
723 { ADVERTISED_100baseT_Half
, "100H" },
724 { ADVERTISED_100baseT_Full
, "100F" },
725 { ADVERTISED_1000baseT_Half
, "1000H" },
726 { ADVERTISED_1000baseT_Full
, "1000F" },
729 static void system_add_link_modes(struct blob_buf
*b
, __u32 mask
)
732 for (i
= 0; i
< ARRAY_SIZE(ethtool_link_modes
); i
++) {
733 if (mask
& ethtool_link_modes
[i
].mask
)
734 blobmsg_add_string(b
, NULL
, ethtool_link_modes
[i
].name
);
739 system_if_dump_info(struct device
*dev
, struct blob_buf
*b
)
741 struct ethtool_cmd ecmd
;
747 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s", dev
->ifname
);
748 dir_fd
= open(buf
, O_DIRECTORY
);
750 if (read_int_file(dir_fd
, "carrier", &val
))
751 blobmsg_add_u8(b
, "link", !!val
);
753 memset(&ecmd
, 0, sizeof(ecmd
));
754 memset(&ifr
, 0, sizeof(ifr
));
755 strcpy(ifr
.ifr_name
, dev
->ifname
);
756 ifr
.ifr_data
= (caddr_t
) &ecmd
;
757 ecmd
.cmd
= ETHTOOL_GSET
;
759 if (ioctl(sock_ioctl
, SIOCETHTOOL
, &ifr
) == 0) {
760 c
= blobmsg_open_array(b
, "link-advertising");
761 system_add_link_modes(b
, ecmd
.advertising
);
762 blobmsg_close_array(b
, c
);
764 c
= blobmsg_open_array(b
, "link-supported");
765 system_add_link_modes(b
, ecmd
.supported
);
766 blobmsg_close_array(b
, c
);
768 s
= blobmsg_alloc_string_buffer(b
, "speed", 8);
769 snprintf(s
, 8, "%d%c", ethtool_cmd_speed(&ecmd
),
770 ecmd
.duplex
== DUPLEX_HALF
? 'H' : 'F');
771 blobmsg_add_string_buffer(b
);
779 system_if_dump_stats(struct device
*dev
, struct blob_buf
*b
)
781 const char *const counters
[] = {
782 "collisions", "rx_frame_errors", "tx_compressed",
783 "multicast", "rx_length_errors", "tx_dropped",
784 "rx_bytes", "rx_missed_errors", "tx_errors",
785 "rx_compressed", "rx_over_errors", "tx_fifo_errors",
786 "rx_crc_errors", "rx_packets", "tx_heartbeat_errors",
787 "rx_dropped", "tx_aborted_errors", "tx_packets",
788 "rx_errors", "tx_bytes", "tx_window_errors",
789 "rx_fifo_errors", "tx_carrier_errors",
795 snprintf(buf
, sizeof(buf
), "/sys/class/net/%s/statistics", dev
->ifname
);
796 stats_dir
= open(buf
, O_DIRECTORY
);
800 for (i
= 0; i
< ARRAY_SIZE(counters
); i
++)
801 if (read_int_file(stats_dir
, counters
[i
], &val
))
802 blobmsg_add_u32(b
, counters
[i
], val
);
808 static int system_addr(struct device
*dev
, struct device_addr
*addr
, int cmd
)
810 int alen
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
811 struct ifaddrmsg ifa
= {
812 .ifa_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
813 .ifa_prefixlen
= addr
->mask
,
814 .ifa_index
= dev
->ifindex
,
824 ifa
.ifa_index
= dev
->ifindex
;
827 msg
= nlmsg_alloc_simple(cmd
, 0);
831 nlmsg_append(msg
, &ifa
, sizeof(ifa
), 0);
832 nla_put(msg
, IFA_LOCAL
, alen
, &addr
->addr
);
833 return system_rtnl_call(msg
);
836 int system_add_address(struct device
*dev
, struct device_addr
*addr
)
838 return system_addr(dev
, addr
, RTM_NEWADDR
);
841 int system_del_address(struct device
*dev
, struct device_addr
*addr
)
843 return system_addr(dev
, addr
, RTM_DELADDR
);
846 static int system_rt(struct device
*dev
, struct device_route
*route
, int cmd
)
848 int alen
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) ? 4 : 16;
850 unsigned int flags
= 0;
851 int ifindex
= dev
->ifindex
;
854 have_gw
= !!route
->nexthop
.in
.s_addr
;
856 have_gw
= route
->nexthop
.in6
.s6_addr32
[0] ||
857 route
->nexthop
.in6
.s6_addr32
[1] ||
858 route
->nexthop
.in6
.s6_addr32
[2] ||
859 route
->nexthop
.in6
.s6_addr32
[3];
861 unsigned char scope
= (cmd
== RTM_DELROUTE
) ? RT_SCOPE_NOWHERE
:
862 (have_gw
) ? RT_SCOPE_UNIVERSE
: RT_SCOPE_LINK
;
865 .rtm_family
= (alen
== 4) ? AF_INET
: AF_INET6
,
866 .rtm_dst_len
= route
->mask
,
867 .rtm_table
= RT_TABLE_MAIN
,
868 .rtm_protocol
= RTPROT_BOOT
,
870 .rtm_type
= (cmd
== RTM_DELROUTE
) ? 0: RTN_UNICAST
,
874 if (cmd
== RTM_NEWROUTE
)
875 flags
|= NLM_F_CREATE
| NLM_F_REPLACE
;
882 ifindex
= dev
->ifindex
;
885 msg
= nlmsg_alloc_simple(cmd
, flags
);
889 nlmsg_append(msg
, &rtm
, sizeof(rtm
), 0);
892 nla_put(msg
, RTA_DST
, alen
, &route
->addr
);
895 nla_put(msg
, RTA_GATEWAY
, alen
, &route
->nexthop
);
897 if (route
->flags
& DEVADDR_DEVICE
)
898 nla_put_u32(msg
, RTA_OIF
, ifindex
);
900 return system_rtnl_call(msg
);
903 int system_add_route(struct device
*dev
, struct device_route
*route
)
905 return system_rt(dev
, route
, RTM_NEWROUTE
);
908 int system_del_route(struct device
*dev
, struct device_route
*route
)
910 return system_rt(dev
, route
, RTM_DELROUTE
);
913 int system_flush_routes(void)
915 const char *names
[] = {
916 "/proc/sys/net/ipv4/route/flush",
917 "/proc/sys/net/ipv6/route/flush"
921 for (i
= 0; i
< ARRAY_SIZE(names
); i
++) {
922 fd
= open(names
[i
], O_WRONLY
);
932 time_t system_get_rtime(void)
937 if (syscall(__NR_clock_gettime
, CLOCK_MONOTONIC
, &ts
) == 0)
940 if (gettimeofday(&tv
, NULL
) == 0)