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
, const char *device
, 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);
41 setenv("DEVICE", device
, 1);
42 argv
[0] = hotplug_cmd_path
;
45 execvp(argv
[0], argv
);
52 const char *device
= NULL
;
53 if (list_empty(&pending
))
56 current
= list_first_entry(&pending
, struct interface
, hotplug_list
);
57 current_ev
= current
->hotplug_ev
;
58 list_del_init(¤t
->hotplug_list
);
60 if (current_ev
== IFEV_UP
&& current
->l3_dev
.dev
)
61 device
= current
->l3_dev
.dev
->ifname
;
63 D(SYSTEM
, "Call hotplug handler for interface '%s' (%s)\n", current
->name
, device
? device
: "none");
64 run_cmd(current
->name
, device
, current_ev
== IFEV_UP
);
68 task_complete(struct uloop_process
*proc
, int ret
)
71 D(SYSTEM
, "Complete hotplug handler for interface '%s'\n", current
->name
);
77 * Queue an interface for an up/down event.
78 * An interface can only have one event in the queue and one
79 * event waiting for completion.
80 * When queueing an event that is the same as the one waiting for
81 * completion, remove the interface from the queue
84 interface_queue_event(struct interface
*iface
, enum interface_event ev
)
86 enum interface_event last_ev
;
88 D(SYSTEM
, "Queue hotplug handler for interface '%s'\n", iface
->name
);
89 netifd_ubus_interface_event(iface
, ev
== IFEV_UP
);
93 last_ev
= iface
->hotplug_ev
;
95 iface
->hotplug_ev
= ev
;
96 if (last_ev
== ev
&& !list_empty(&iface
->hotplug_list
))
97 list_del(&iface
->hotplug_list
);
98 else if (last_ev
!= ev
&& list_empty(&iface
->hotplug_list
))
99 list_add(&iface
->hotplug_list
, &pending
);
101 if (!task
.pending
&& !current
)
106 interface_dequeue_event(struct interface
*iface
)
108 if (iface
== current
)
111 if (!list_empty(&iface
->hotplug_list
))
112 list_del_init(&iface
->hotplug_list
);
115 static void interface_event_cb(struct interface_user
*dep
, struct interface
*iface
,
116 enum interface_event ev
)
121 interface_queue_event(iface
, ev
);
125 interface_dequeue_event(iface
);
130 static struct interface_user event_user
= {
131 .cb
= interface_event_cb
134 static void __init
interface_event_init(void)
136 interface_add_user(&event_user
, NULL
);