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Fixed crash from orphaned MWI subscriptions in chan_sip

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This patch resolves the issue where MWI subscriptions are orphaned
by subsequent SIP SUBSCRIBE messages.  When a peer is removed, either
by pruning realtime SIP peers or by unloading / loading chan_sip, the
MWI subscriptions that were orphaned would still be on the event engine
list of valid subscriptions but have a pointer to a peer that no longer
was valid.  When an MWI event would occur, this would cause a seg fault.

(closes issue ASTERISK-18663)
Reported by: Ross Beer
Tested by: Ross Beer, Matt Jordan
Patches:
  blf_mwi_diff_12_06_11.txt uploaded by Matt Jordan (license 6283)

Review: https://reviewboard.asterisk.org/r/1610/



git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@347058 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Matthew Jordan
2011-12-06 17:05:05 +00:00
parent 202cfa080e
commit 7c0ead6cb8
2 changed files with 60 additions and 32 deletions
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2
channels/sip/include/sip.h
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@@ -474,7 +474,7 @@ enum check_auth_result {
AUTH_PEER_NOT_DYNAMIC = -6,
AUTH_ACL_FAILED = -7,
AUTH_BAD_TRANSPORT = -8,
AUTH_RTP_FAILED = 9,
AUTH_RTP_FAILED = -9,
};
/*! \brief States for outbound registrations (with register= lines in sip.conf */