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don't create new iax sessions when we shouldn't 

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4324 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Michael Jerris 2007-02-19 16:56:48 +00:00
parent 962c8ba4f2
commit 1141525293
2 changed files with 14 additions and 1 deletions
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1
libs/iax/.update Normal file
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@ -0,0 +1 @@
Mon Feb 19 12:03:56 EST 2007

14
libs/iax/src/iax.c
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@ -2916,17 +2916,29 @@ struct iax_event *iax_net_process(unsigned char *buf, int len, struct sockaddr_i
struct iax_session *session;
if (ntohs(fh->scallno) & IAX_FLAG_FULL) {
int subclass = uncompress_subclass(fh->csub);
int makenew = 0;
/* Full size header */
if (len < sizeof(struct ast_iax2_full_hdr)) {
DEBU(G "Short header received from %s\n", inet_ntoa(sin->sin_addr));
IAXERROR "Short header received from %s\n", inet_ntoa(sin->sin_addr));
}
/* Only allow it to make new sessions on types where that makes sense */
if ((fh->type == AST_FRAME_IAX) && ((subclass == IAX_COMMAND_NEW) ||
(subclass == IAX_COMMAND_POKE) ||
(subclass == IAX_COMMAND_REGREL) ||
(subclass == IAX_COMMAND_REGREQ))) {
makenew = 1;
}
/* We have a full header, process appropriately */
session = iax_find_session(sin, ntohs(fh->scallno) & ~IAX_FLAG_FULL, ntohs(fh->dcallno) & ~IAX_FLAG_RETRANS, 1);
session = iax_find_session(sin, ntohs(fh->scallno) & ~IAX_FLAG_FULL, ntohs(fh->dcallno) & ~IAX_FLAG_RETRANS, makenew);
if (!session)
session = iax_txcnt_session(fh, len-sizeof(struct ast_iax2_full_hdr), sin, ntohs(fh->scallno) & ~IAX_FLAG_FULL, ntohs(fh->dcallno) & ~IAX_FLAG_RETRANS);
if (session)
return iax_header_to_event(session, fh, len - sizeof(struct ast_iax2_full_hdr), sin);
/* if we get here, the frame was invalid for some reason, we should probably send IAX_COMMAND_INVAL (as long as the subclass was not already IAX_COMMAND_INVAL) */
DEBU(G "No session?\n");
return NULL;
} else {