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If we receive a frame that is not in any of the negotiated formats, then drop

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it.  (potentially issue #8781 and SPD-12)


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@56010 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Russell Bryant
2007-02-22 00:53:25 +00:00
parent aa54a5f91b
commit c9d26b5a89
1 changed files with 5 additions and 0 deletions
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5
channels/chan_sip.c
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@@ -3043,6 +3043,11 @@ static struct ast_frame *sip_rtp_read(struct ast_channel *ast, struct sip_pvt *p
/* We already hold the channel lock */
if (f->frametype == AST_FRAME_VOICE) {
if (f->subclass != p->owner->nativeformats) {
if (!(f->subclass & p->jointcapability)) {
ast_log(LOG_DEBUG, "Bogus frame of format '%s' received from '%s'!\n",
ast_getformatname(f->subclass), p->owner->name);
return &null_frame;
}
ast_log(LOG_DEBUG, "Oooh, format changed to %d\n", f->subclass);
p->owner->nativeformats = f->subclass;
ast_set_read_format(p->owner, p->owner->readformat);