Make sure call is valid when handling mini-frame.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@2754 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/channels/chan_iax2.c b/channels/chan_iax2.c
index 1624b26..c0f538c 100755 (executable)
--- a/channels/chan_iax2.c
+++ b/channels/chan_iax2.c
@@ -4556,43 +4556,45 @@ static int socket_read(int *id, int fd, short events, void *cbdata)
                                           drop it, since we don't have a scallno to use for an INVAL */
                                        /* Process as a mini frame */
                                        f.frametype = AST_FRAME_VOICE;
-                                       if (iaxs[fr.callno]->voiceformat > 0) {
-                                               f.subclass = iaxs[fr.callno]->voiceformat;
-                                               f.datalen = len;
-                                               if (f.datalen >= 0) {
-                                                       if (f.datalen)
-                                                               f.data = ptr;
-                                                       else
-                                                               f.data = NULL;
-                                                       fr.ts = fix_peerts(peer, fr.callno, ts);
-                                                       /* Don't pass any packets until we're started */
-                                                       if ((iaxs[fr.callno]->state & IAX_STATE_STARTED)) {
-                                                               /* Common things */
-                                                               f.src = "IAX2";
-                                                               f.mallocd = 0;
-                                                               f.offset = 0;
-                                                               if (f.datalen && (f.frametype == AST_FRAME_VOICE)) 
-                                                                       f.samples = get_samples(&f);
+                                       if (iaxs[fr.callno]) {
+                                               if (iaxs[fr.callno]->voiceformat > 0) {
+                                                       f.subclass = iaxs[fr.callno]->voiceformat;
+                                                       f.datalen = len;
+                                                       if (f.datalen >= 0) {
+                                                               if (f.datalen)
+                                                                       f.data = ptr;
                                                                else
-                                                                       f.samples = 0;
-                                                               fr.outoforder = 0;
-                                                               iax_frame_wrap(&fr, &f);
+                                                                       f.data = NULL;
+                                                               fr.ts = fix_peerts(peer, fr.callno, ts);
+                                                               /* Don't pass any packets until we're started */
+                                                               if ((iaxs[fr.callno]->state & IAX_STATE_STARTED)) {
+                                                                       /* Common things */
+                                                                       f.src = "IAX2";
+                                                                       f.mallocd = 0;
+                                                                       f.offset = 0;
+                                                                       if (f.datalen && (f.frametype == AST_FRAME_VOICE)) 
+                                                                               f.samples = get_samples(&f);
+                                                                       else
+                                                                               f.samples = 0;
+                                                                       fr.outoforder = 0;
+                                                                       iax_frame_wrap(&fr, &f);
 #ifdef BRIDGE_OPTIMIZATION
-                                                               if (iaxs[fr.callno]->bridgecallno) {
-                                                                       forward_delivery(&fr);
-                                                               } else {
-                                                                       schedule_delivery(iaxfrdup2(&fr), 1, updatehistory);
-                                                               }
+                                                                       if (iaxs[fr.callno]->bridgecallno) {
+                                                                               forward_delivery(&fr);
+                                                                       } else {
+                                                                               schedule_delivery(iaxfrdup2(&fr), 1, updatehistory);
+                                                                       }
 #else
-                                                               schedule_delivery(iaxfrdup2(&fr), 1, updatehistory);
+                                                                       schedule_delivery(iaxfrdup2(&fr), 1, updatehistory);
 #endif
+                                                               }
+                                                       } else {
+                                                               ast_log(LOG_WARNING, "Datalen < 0?\n");
                                                        }
                                                } else {
-                                                       ast_log(LOG_WARNING, "Datalen < 0?\n");
+                                                       ast_log(LOG_WARNING, "Received trunked frame before first full voice frame\n ");
+                                                       iax2_vnak(fr.callno);
                                                }
-                                       } else {
-                                               ast_log(LOG_WARNING, "Received trunked frame before first full voice frame\n ");
-                                               iax2_vnak(fr.callno);
                                        }
                                        ast_mutex_unlock(&iaxsl[fr.callno]);
                                }