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AST-2020-002 - res_pjsip: Stop sending INVITEs after challenge limit.

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If Asterisk sends out and INVITE and receives a challenge with a
different nonce value each time, it will continually send out INVITEs,
even if the call is hung up. The endpoint must be configured for
outbound authentication in order for this to occur. A limit has been set
on outbound INVITEs so that, once reached, Asterisk will stop sending
INVITEs and the transaction will terminate.

ASTERISK-29013

Change-Id: I2d001ca745b00ca8aa12030f2240cd72363b46f7
This commit is contained in:
Ben Ford
2020-11-03 10:38:34 -06:00
committed by Kevin Harwell
parent fe540d0326
commit 82325ba58b
4 changed files with 13 additions and 3 deletions
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2
res/res_pjsip.c
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@@ -4415,8 +4415,6 @@ static pj_bool_t does_method_match(const pj_str_t *message_method, const char *s
return pj_stristr(&method, message_method) ? PJ_TRUE : PJ_FALSE;
}
/*! Maximum number of challenges before assuming that we are in a loop */
#define MAX_RX_CHALLENGES 10
#define TIMER_INACTIVE 0
#define TIMEOUT_TIMER2 5