6 #include <libubox/uloop.h>
11 char *hotplug_cmd_path
= DEFAULT_HOTPLUG_PATH
;
12 static struct interface
*current
;
13 static enum interface_event current_ev
;
14 static struct list_head pending
= LIST_HEAD_INIT(pending
);
16 static void task_complete(struct uloop_process
*proc
, int ret
);
17 static struct uloop_process task
= {
22 run_cmd(const char *ifname
, bool up
)
29 return task_complete(NULL
, -1);
33 uloop_process_add(&task
);
37 setenv("ACTION", up
? "ifup" : "ifdown", 1);
38 setenv("INTERFACE", ifname
, 1);
39 argv
[0] = hotplug_cmd_path
;
42 execvp(argv
[0], argv
);
49 if (list_empty(&pending
))
52 current
= list_first_entry(&pending
, struct interface
, hotplug_list
);
53 current_ev
= current
->hotplug_ev
;
54 list_del_init(¤t
->hotplug_list
);
56 D(SYSTEM
, "Call hotplug handler for interface '%s'\n", current
->name
);
57 run_cmd(current
->name
, current_ev
== IFEV_UP
);
61 task_complete(struct uloop_process
*proc
, int ret
)
64 D(SYSTEM
, "Complete hotplug handler for interface '%s'\n", current
->name
);
70 * Queue an interface for an up/down event.
71 * An interface can only have one event in the queue and one
72 * event waiting for completion.
73 * When queueing an event that is the same as the one waiting for
74 * completion, remove the interface from the queue
77 interface_queue_event(struct interface
*iface
, enum interface_event ev
)
79 enum interface_event last_ev
;
81 D(SYSTEM
, "Queue hotplug handler for interface '%s'\n", iface
->name
);
85 last_ev
= iface
->hotplug_ev
;
87 iface
->hotplug_ev
= ev
;
88 if (last_ev
== ev
&& !list_empty(&iface
->hotplug_list
))
89 list_del(&iface
->hotplug_list
);
90 else if (last_ev
!= ev
&& list_empty(&iface
->hotplug_list
))
91 list_add(&iface
->hotplug_list
, &pending
);
93 if (!task
.pending
&& !current
)
98 interface_dequeue_event(struct interface
*iface
)
100 if (iface
== current
)
103 if (!list_empty(&iface
->hotplug_list
))
104 list_del_init(&iface
->hotplug_list
);