6 #include <libubox/uloop.h>
12 char *hotplug_cmd_path
= DEFAULT_HOTPLUG_PATH
;
13 static struct interface
*current
;
14 static enum interface_event current_ev
;
15 static struct list_head pending
= LIST_HEAD_INIT(pending
);
17 static void task_complete(struct uloop_process
*proc
, int ret
);
18 static struct uloop_process task
= {
23 run_cmd(const char *ifname
, bool up
)
30 return task_complete(NULL
, -1);
34 uloop_process_add(&task
);
38 setenv("ACTION", up
? "ifup" : "ifdown", 1);
39 setenv("INTERFACE", ifname
, 1);
40 argv
[0] = hotplug_cmd_path
;
43 execvp(argv
[0], argv
);
50 if (list_empty(&pending
))
53 current
= list_first_entry(&pending
, struct interface
, hotplug_list
);
54 current_ev
= current
->hotplug_ev
;
55 list_del_init(¤t
->hotplug_list
);
57 D(SYSTEM
, "Call hotplug handler for interface '%s'\n", current
->name
);
58 run_cmd(current
->name
, current_ev
== IFEV_UP
);
62 task_complete(struct uloop_process
*proc
, int ret
)
65 D(SYSTEM
, "Complete hotplug handler for interface '%s'\n", current
->name
);
71 * Queue an interface for an up/down event.
72 * An interface can only have one event in the queue and one
73 * event waiting for completion.
74 * When queueing an event that is the same as the one waiting for
75 * completion, remove the interface from the queue
78 interface_queue_event(struct interface
*iface
, enum interface_event ev
)
80 enum interface_event last_ev
;
82 D(SYSTEM
, "Queue hotplug handler for interface '%s'\n", iface
->name
);
83 netifd_ubus_interface_event(iface
, ev
== IFEV_UP
);
87 last_ev
= iface
->hotplug_ev
;
89 iface
->hotplug_ev
= ev
;
90 if (last_ev
== ev
&& !list_empty(&iface
->hotplug_list
))
91 list_del(&iface
->hotplug_list
);
92 else if (last_ev
!= ev
&& list_empty(&iface
->hotplug_list
))
93 list_add(&iface
->hotplug_list
, &pending
);
95 if (!task
.pending
&& !current
)
100 interface_dequeue_event(struct interface
*iface
)
102 if (iface
== current
)
105 if (!list_empty(&iface
->hotplug_list
))
106 list_del_init(&iface
->hotplug_list
);