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channel_test: Return a positive number to claim it was paged 

This addresses an ASAN issue where the request was already deleted
by our callback function.

(gdb) where
 #0  0xb69e7810 in __asan_report_error () from /usr/lib/i386-linux-gnu/libasan.so.0
 #1  0xb69e0aff in __asan_report_store4 () from /usr/lib/i386-linux-gnu/libasan.so.0
 #2  0x0804ea64 in subscr_send_paging_request (subscr=subscr@entry=0xb5103cb0)
     at gsm_subscriber.c:212
 #3  0x0804edac in subscr_get_channel (subscr=subscr@entry=0xb5103cb0, type=type@entry=2,
     cbfn=cbfn@entry=0x804969d <subscr_cb>, param=param@entry=0x2342) at gsm_subscriber.c:246
 #4  0x080498f7 in main (argc=1, argv=0xbffff804) at channel_test.c:77

Breakpoint 3, subscr_paging_dispatch (hooknum=hooknum@entry=101, event=event@entry=200,
    msg=msg@entry=0x1323, data=<optimized out>, data@entry=0x8063900 <s_conn>,
    param=<optimized out>, param@entry=0xb5103cb0) at gsm_subscriber.c:126
126		llist_del(&request->entry);

 (gdb) b llist_del
 (gdb) bt
 #0  subscr_paging_dispatch (hooknum=hooknum@entry=101, event=event@entry=200,
     msg=msg@entry=0x1323, data=<optimized out>, data@entry=0x8063900 <s_conn>,
     param=<optimized out>, param@entry=0xb5103cb0) at gsm_subscriber.c:126
 #1  0x0804e8a9 in subscr_paging_cb (hooknum=101, event=200, msg=0x1323,
     data=0x8063900 <s_conn>, param=0xb5103cb0) at gsm_subscriber.c:187
 #2  0x080497e9 in paging_request (bts=0xb5b03e70, subscriber=subscriber@entry=0xb5103cb0,
     type=2, cbfn=cbfn@entry=0x804e881 <subscr_paging_cb>, data=data@entry=0xb5103cb0)
     at channel_test.c:51
 #3  0x0804ea39 in subscr_send_paging_request (subscr=subscr@entry=0xb5103cb0)
     at gsm_subscriber.c:207
 #4  0x0804edac in subscr_get_channel (subscr=subscr@entry=0xb5103cb0, type=type@entry=2,
     cbfn=cbfn@entry=0x804969d <subscr_cb>, param=param@entry=0x2342) at gsm_subscriber.c:246
 #5  0x080498f7 in main (argc=1, argv=0xbffff804) at channel_test.c:77
(gdb) q
This commit is contained in:
Holger Hans Peter Freyther 2014-05-28 16:39:50 +02:00
parent f6b61e6154
commit b691bf1d54
1 changed files with 4 additions and 1 deletions
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5
openbsc/tests/channel/channel_test.c
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@ -46,9 +46,12 @@ static int subscr_cb(unsigned int hook, unsigned int event, struct msgb *msg, vo
}
/* mock object for testing, directly invoke the cb... maybe later through the timer */
void paging_request(struct gsm_bts *bts, struct gsm_subscriber *subscriber, int type, gsm_cbfn *cbfn, void *data)
int paging_request(struct gsm_bts *bts, struct gsm_subscriber *subscriber, int type, gsm_cbfn *cbfn, void *data)
{
cbfn(101, 200, (void*)0x1323L, &s_conn, data);
/* claim we have patched */
return 1;
}