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Merged revisions 284477 via svnmerge from

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https://origsvn.digium.com/svn/asterisk/branches/1.8

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  r284477 | twilson | 2010-09-01 13:44:36 -0500 (Wed, 01 Sep 2010) | 17 lines
  
  Fix SRTP for changing SSRC and multiple a=crypto SDP lines
  
  Adding code to Asterisk that changed the SSRC during bridges and masquerades
  broke SRTP functionality. Also broken was handling the situation where an
  incoming INVITE had more than one crypto offer. This patch caches the SRTP
  policies the we use so that we can change the ssrc and inform libsrtp of the
  new streams. It also uses the first acceptable a=crypto line from the incoming
  INVITE.
  
  (closes issue #17563)
  Reported by: Alexcr
  Patches: 
        srtp.diff uploaded by twilson (license 396)
  Tested by: twilson
  
  Review: https://reviewboard.asterisk.org/r/878/
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@284479 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Terry Wilson
2010-09-01 18:52:27 +00:00
parent af67f7621a
commit 920f5ea8b7
5 changed files with 110 additions and 9 deletions
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1
include/asterisk/res_srtp.h
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@@ -33,6 +33,7 @@ struct ast_srtp_res {
int (*create)(struct ast_srtp **srtp, struct ast_rtp_instance *rtp, struct ast_srtp_policy *policy);
void (*destroy)(struct ast_srtp *srtp);
int (*add_stream)(struct ast_srtp *srtp, struct ast_srtp_policy *policy);
int (*change_source)(struct ast_srtp *srtp, unsigned int from_ssrc, unsigned int to_ssrc);
void (*set_cb)(struct ast_srtp *srtp, const struct ast_srtp_cb *cb, void *data);
int (*unprotect)(struct ast_srtp *srtp, void *buf, int *size, int rtcp);
int (*protect)(struct ast_srtp *srtp, void **buf, int *size, int rtcp);