Corrections for properly work with H.323v2 (older) endpoints and other
authorAlexandr Anikin <may@telecom-service.ru>
Thu, 10 Feb 2011 13:29:19 +0000 (13:29 +0000)
committerAlexandr Anikin <may@telecom-service.ru>
Thu, 10 Feb 2011 13:29:19 +0000 (13:29 +0000)
small fixes.

Interpret remote side H.225 version.

Corrections for H.323v2 endpoints:
don't start TCS and MSD before connect,
don't start TCS and MSD by accepting H.245 connection,
start TCS and MSD by StartH245 facility message.

Other fixes:
fix non zeroended remoteDisplayName issue, small fixes in call clearing
by closing H.245 connection, tcp keepalive introduced on TCP
connections (now is hardcoded, will be configurable in the future),
don't force H.245tunneling if FastStart is active, don't send Alerting
singal more than once per call.

(closes issue #18542)
Reported by: vmikhelson
Patches:
      issue18542-final-3.patch uploaded by may213 (license 454)
Tested by: vmikhelson

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@307396 65c4cc65-6c06-0410-ace0-fbb531ad65f3

addons/chan_ooh323.c
addons/ooh323c/src/ooCalls.h
addons/ooh323c/src/ooSocket.c
addons/ooh323c/src/ooStackCmds.c
addons/ooh323c/src/oochannels.c
addons/ooh323c/src/ooh245.c
addons/ooh323c/src/ooh323.c
addons/ooh323c/src/ooq931.c

index 4debfa2..2fac52c 100644 (file)
@@ -183,6 +183,7 @@ static struct ooh323_pvt {
        int nat;
        int amaflags;
        int progsent;                   /* progress is sent */
+       int alertsent;                  /* alerting is sent */
        struct ast_dsp *vad;
        struct OOH323Regex *rtpmask;    /* rtp ip regexp */
        char rtpmaskstr[120];
@@ -1236,13 +1237,15 @@ static int ooh323_indicate(struct ast_channel *ast, int condition, const void *d
            break;
       case AST_CONTROL_RINGING:
            if (ast->_state == AST_STATE_RING || ast->_state == AST_STATE_RINGING) {
-               if (gH323Debug) {
-                       ast_debug(1, "Sending manual ringback for %s, res = %d\n",
-                       callToken,
-                       ooManualRingback(callToken));
-               } else {
-                       ooManualRingback(callToken);
-               }
+               if (!p->alertsent) {
+                       if (gH323Debug) {
+                               ast_debug(1, "Sending manual ringback for %s, res = %d\n",
+                                       callToken,
+                                       ooManualRingback(callToken));
+                       } else {
+                               ooManualRingback(callToken);
+                       }
+                       p->alertsent = 1;
            }
         break;
        case AST_CONTROL_SRCUPDATE:
index 0549429..8f36776 100644 (file)
@@ -172,6 +172,7 @@ typedef struct OOH323CallData {
    OOCallState          callState;
    OOCallClearReason    callEndReason;
    int                 q931cause;
+   ASN1UINT            h225version;
    unsigned             h245ConnectionAttempts;
    OOH245SessionState   h245SessionState;
    int                  dtmfmode;
index f654705..128049b 100644 (file)
@@ -191,7 +191,7 @@ typedef socklen_t OOSOCKLEN;
 int ooSocketCreate (OOSOCKET* psocket) 
 {
    int on;
-
+   int keepalive = 1, keepcnt = 24, keepidle = 120, keepintvl = 30;
    struct linger linger;
    OOSOCKET sock = socket (AF_INET,
                              SOCK_STREAM,
@@ -217,6 +217,11 @@ int ooSocketCreate (OOSOCKET* psocket)
       OOTRACEERR1("Error:Failed to set socket option linger\n");
       return ASN_E_INVSOCKET;
    }
+   setsockopt (sock, SOL_SOCKET, SO_KEEPALIVE, (const char *)&keepalive,
+                       sizeof(keepalive));
+   setsockopt (sock, SOL_TCP, TCP_KEEPCNT, &keepcnt, sizeof(keepcnt));
+   setsockopt (sock, SOL_TCP, TCP_KEEPIDLE, &keepidle, sizeof(keepidle));
+   setsockopt (sock, SOL_TCP, TCP_KEEPINTVL, &keepintvl, sizeof(keepintvl));
    *psocket = sock;
    return ASN_OK;
 }
index 2987878..2cb1902 100644 (file)
@@ -261,6 +261,9 @@ OOStkCmdStat ooManualProgress(const char *callToken)
          return OO_STKCMD_CONNECTIONERR;
    }
 
+   if (call->h225version < 4)
+      return OO_STKCMD_SUCCESS;
+
    memset(&cmd, 0, sizeof(OOStackCommand));
    cmd.type = OO_CMD_MANUALPROGRESS;
    cmd.param1 = (void*) malloc(strlen(callToken)+1);
index 7fa8509..e16fdcc 100644 (file)
@@ -473,15 +473,6 @@ int ooAcceptH245Connection(OOH323CallData *call)
    OOTRACEINFO3("H.245 connection established (%s, %s)\n", 
                 call->callType, call->callToken);
 
-
-   /* Start terminal capability exchange and master slave determination */
-   ret = ooSendTermCapMsg(call);
-   if(ret != OO_OK)
-   {
-      OOTRACEERR3("ERROR:Sending Terminal capability message (%s, %s)\n",
-                   call->callType, call->callToken);
-      return ret;
-   }
    return OO_OK;
 }
 
@@ -1835,6 +1826,8 @@ int ooOnSendMsg
       }
       else{
          ooCloseH245Connection(call);
+        if(call->callState < OO_CALL_CLEAR)
+           call->callState = OO_CALL_CLEAR;
       }
       break;
    case OOCloseLogicalChannel:
index d993c9e..687e07e 100644 (file)
@@ -2060,14 +2060,12 @@ int ooHandleH245Command(OOH323CallData *call,
                }
             }
             ooCloseH245Connection(call);
+           if (call->callState < OO_CALL_CLEAR)
+               call->callState = OO_CALL_CLEAR;
          }
          else{
 
             call->h245SessionState = OO_H245SESSION_ENDRECVD;
-#if 0
-            if(call->callState < OO_CALL_CLEAR)
-               call->callState = OO_CALL_CLEAR;
-#else 
             if(call->logicalChans)
             {
                OOTRACEINFO3("In response to received EndSessionCommand - "
@@ -2076,7 +2074,6 @@ int ooHandleH245Command(OOH323CallData *call,
                ooClearAllLogicalChannels(call);
             }
             ooSendEndSessionCommand(call);
-#endif
          }
             
             
index 09df3c9..3375106 100644 (file)
@@ -40,6 +40,7 @@ int ooOnReceivedCallProceeding(OOH323CallData *call, Q931Message *q931Msg);
 int ooOnReceivedAlerting(OOH323CallData *call, Q931Message *q931Msg);
 int ooOnReceivedProgress(OOH323CallData *call, Q931Message *q931Msg);
 int ooHandleDisplayIE(OOH323CallData *call, Q931Message *q931Msg);
+int ooHandleH2250ID (OOH323CallData *call, H225ProtocolIdentifier protocolIdentifier);
 
 int ooHandleDisplayIE(OOH323CallData *call, Q931Message *q931Msg) {
    Q931InformationElement* pDisplayIE;
@@ -57,6 +58,17 @@ int ooHandleDisplayIE(OOH323CallData *call, Q931Message *q931Msg) {
    return OO_OK;
 }
 
+int ooHandleH2250ID (OOH323CallData *call, H225ProtocolIdentifier protocolIdentifier) {
+   if (!call->h225version && (protocolIdentifier.numids >= 6) &&
+       (protocolIdentifier.subid[3] == 2250)) {
+       call->h225version = protocolIdentifier.subid[5];
+       OOTRACEDBGC4("Extract H.225 remote version, it's %d, (%s, %s)\n", call->h225version, 
+                                               call->callType, call->callToken);
+
+   }
+   return OO_OK;
+}
+
 int ooHandleFastStart(OOH323CallData *call, H225Facility_UUIE *facility)
 {
    H245OpenLogicalChannel* olc;
@@ -241,7 +253,9 @@ int ooHandleFastStart(OOH323CallData *call, H225Facility_UUIE *facility)
        }
       }
    } else if (OO_TESTFLAG (call->flags, OO_M_TUNNELING)) {
-       ret =ooSendTCSandMSD(call);
+       if (call->h225version >= 4) {
+               ret =ooSendTCSandMSD(call);
+       }
        if (ret != OO_OK)
                return ret;
    }
@@ -372,6 +386,7 @@ int ooOnReceivedSetup(OOH323CallData *call, Q931Message *q931Msg)
                   "%s\n", call->callType, call->callToken);
       return OO_FAILED;
    }
+   ooHandleH2250ID(call, setup->protocolIdentifier);
    memcpy(call->callIdentifier.guid.data, setup->callIdentifier.guid.data, 
           setup->callIdentifier.guid.numocts);
    call->callIdentifier.guid.numocts = setup->callIdentifier.guid.numocts;
@@ -384,9 +399,9 @@ int ooOnReceivedSetup(OOH323CallData *call, Q931Message *q931Msg)
    pDisplayIE = ooQ931GetIE(q931Msg, Q931DisplayIE);
    if(pDisplayIE)
    {
-      call->remoteDisplayName = (char *) memAlloc(call->pctxt, 
+      call->remoteDisplayName = (char *) memAllocZ(call->pctxt, 
                                  pDisplayIE->length*sizeof(ASN1OCTET)+1);
-      strcpy(call->remoteDisplayName, (char *)pDisplayIE->data);
+      strncpy(call->remoteDisplayName, (char *)pDisplayIE->data, pDisplayIE->length*sizeof(ASN1OCTET));
    }
    /*Extract Remote Aliases, if present*/
    if(setup->m.sourceAddressPresent)
@@ -618,6 +633,7 @@ int ooOnReceivedCallProceeding(OOH323CallData *call, Q931Message *q931Msg)
       return OO_FAILED;
    }
 
+   ooHandleH2250ID(call, callProceeding->protocolIdentifier);
    /* Handle fast-start */
    if(OO_TESTFLAG (call->flags, OO_M_FASTSTART))
    {
@@ -846,6 +862,7 @@ int ooOnReceivedAlerting(OOH323CallData *call, Q931Message *q931Msg)
       }
       return OO_FAILED;
    }
+   ooHandleH2250ID(call, alerting->protocolIdentifier);
    /*Handle fast-start */
    if(OO_TESTFLAG (call->flags, OO_M_FASTSTART) &&
       !OO_TESTFLAG(call->flags, OO_M_FASTSTARTANSWERED))
@@ -996,7 +1013,9 @@ int ooOnReceivedAlerting(OOH323CallData *call, Q931Message *q931Msg)
        OOTRACEINFO3("Tunneling and h245address provided."
                      "Giving preference to Tunneling (%s, %s)\n", 
                        call->callType, call->callToken);
-       ret =ooSendTCSandMSD(call);
+       if (call->h225version >= 4) {
+               ret =ooSendTCSandMSD(call);
+       }
        if (ret != OO_OK)
                return ret;
 
@@ -1038,6 +1057,10 @@ int ooOnReceivedAlerting(OOH323CallData *call, Q931Message *q931Msg)
             call->callState = OO_CALL_CLEAR;
          }
          return OO_FAILED;
+       } else {
+       if (call->h225version >= 4) {
+               ret =ooSendTCSandMSD(call);
+       }
        }
       }
    }
@@ -1076,6 +1099,7 @@ int ooOnReceivedProgress(OOH323CallData *call, Q931Message *q931Msg)
       }
       return OO_FAILED;
    }
+   ooHandleH2250ID(call, progress->protocolIdentifier);
    /*Handle fast-start */
    if(OO_TESTFLAG (call->flags, OO_M_FASTSTART) &&
       !OO_TESTFLAG(call->flags, OO_M_FASTSTARTANSWERED))
@@ -1227,7 +1251,9 @@ int ooOnReceivedProgress(OOH323CallData *call, Q931Message *q931Msg)
        OOTRACEINFO3("Tunneling and h245address provided."
                      "Giving preference to Tunneling (%s, %s)\n", 
                      call->callType, call->callToken);
-       ret =ooSendTCSandMSD(call);
+       if (call->h225version >= 4) {
+               ret =ooSendTCSandMSD(call);
+       }
        if (ret != OO_OK)
                return ret;
    } else if(progress->m.h245AddressPresent) {
@@ -1268,6 +1294,10 @@ int ooOnReceivedProgress(OOH323CallData *call, Q931Message *q931Msg)
             call->callState = OO_CALL_CLEAR;
          }
          return OO_FAILED;
+       } else {
+       if (call->h225version >= 4) {
+               ret =ooSendTCSandMSD(call);
+       }
        }
       }
    }
@@ -1313,7 +1343,7 @@ int ooOnReceivedSignalConnect(OOH323CallData* call, Q931Message *q931Msg)
       }
       return OO_FAILED;
    }
-
+   ooHandleH2250ID(call, connect->protocolIdentifier);
    /*Handle fast-start */
    if(OO_TESTFLAG (call->flags, OO_M_FASTSTART) && 
       !OO_TESTFLAG (call->flags, OO_M_FASTSTARTANSWERED))
@@ -1548,24 +1578,24 @@ int ooOnReceivedSignalConnect(OOH323CallData* call, Q931Message *q931Msg)
       OOTRACEDBGB3("Finished tunneled messages in Connect. (%s, %s)\n",
                     call->callType, call->callToken);
 
-      /*
+   }
+   /*
         Send TCS as call established and no capability exchange has yet 
         started. This will be true only when separate h245 connection is not
         established and tunneling is being used.
-      */
-      if(call->localTermCapState == OO_LocalTermCapExchange_Idle)
-      {
-         /*Start terminal capability exchange and master slave determination */
-         ret = ooSendTermCapMsg(call);
-         if(ret != OO_OK)
-         {
-            OOTRACEERR3("ERROR:Sending Terminal capability message (%s, %s)\n",
-                         call->callType, call->callToken);
-            return ret;
-         }
-      }
-
+   */
+   if(call->localTermCapState == OO_LocalTermCapExchange_Idle)
+   {
+        /*Start terminal capability exchange and master slave determination */
+        ret = ooSendTermCapMsg(call);
+        if(ret != OO_OK)
+        {
+           OOTRACEERR3("ERROR:Sending Terminal capability message (%s, %s)\n",
+                        call->callType, call->callToken);
+           return ret;
+        }
    }
+
    call->callState = OO_CALL_CONNECTED;
    if (call->rtdrCount > 0 && call->rtdrInterval > 0) {
         return ooSendRoundTripDelayRequest(call);
@@ -1786,6 +1816,9 @@ int ooOnReceivedFacility(OOH323CallData *call, Q931Message * pQ931Msg)
    H225TransportAddress_ipAddress_ip *ip = NULL;
    OOTRACEDBGC3("Received Facility Message.(%s, %s)\n", call->callType, 
                                                         call->callToken);
+
+   ooHandleDisplayIE(call, pQ931Msg);
+
    /* Get Reference to H323_UU_PDU */
    if(!pQ931Msg->userInfo)
    {
@@ -1803,6 +1836,7 @@ int ooOnReceivedFacility(OOH323CallData *call, Q931Message * pQ931Msg)
    facility = pH323UUPdu->h323_message_body.u.facility;
    if(facility)
    {
+      ooHandleH2250ID(call, facility->protocolIdentifier);
       /* Depending on the reason of facility message handle the message */
       if(facility->reason.t == T_H225FacilityReason_transportedInformation)
       {
@@ -1980,6 +2014,7 @@ int ooHandleStartH245FacilityMessage
      OOTRACEINFO3("INFO: H.245 connection already established with remote"
                   " endpoint (%s, %s)\n", call->callType, call->callToken);
    }
+   ooSendTCSandMSD(call);
    return OO_OK;
 }
 
index d0233f3..dddcf15 100644 (file)
@@ -53,6 +53,7 @@ EXTERN int ooQ931Decode
    int offset, x;
    int rv = ASN_OK;
    char number[128];
+   char *display = NULL;
    /* OOCTXT *pctxt = &gH323ep.msgctxt; */
    OOCTXT *pctxt = call->msgctxt;
 
@@ -164,9 +165,15 @@ EXTERN int ooQ931Decode
       }
       if(ie->discriminator == Q931DisplayIE)
       {
-         OOTRACEDBGB1("   Display IE = {\n");
-         OOTRACEDBGB2("      %s\n", ie->data);
-         OOTRACEDBGB1("   }\n");
+        if (!(display = memAllocZ(pctxt, ie->length + 1))) {
+               OOTRACEERR4("Can't alloc DisplayIE buffer for %n bytes, (%s, %s)\n", ie->length,
+                               call->callType, call->callToken);
+        } else {
+            memcpy(display, ie->data,ie->length);
+            OOTRACEDBGB1("   Display IE = {\n");
+            OOTRACEDBGB2("      %s\n", display);
+            OOTRACEDBGB1("   }\n");
+        }
       }
 
       if(ie->discriminator == Q931KeypadIE)
@@ -1451,7 +1458,9 @@ int ooSendAlerting(OOH323CallData *call)
       OOTRACEERR3("Error: Failed to enqueue Alerting message to outbound queue. (%s, %s)\n", call->callType, call->callToken);
    }
 
-   ooSendTCSandMSD(call);
+   if (call->h225version >= 4) {
+       ooSendTCSandMSD(call);
+   }
    memReset (call->msgctxt);
 
    return ret;
@@ -1588,7 +1597,9 @@ int ooSendProgress(OOH323CallData *call)
    if (!OO_TESTFLAG(call->flags, OO_M_TUNNELING) && call->h245listener)
       ooSendStartH245Facility(call);
 
-   ooSendTCSandMSD(call);
+   if (call->h225version >= 4) {
+       ooSendTCSandMSD(call);
+   }
    memReset (call->msgctxt);
 
    return ret;
@@ -1957,12 +1968,16 @@ int ooAcceptCall(OOH323CallData *call)
    }
 
 
-   /* Add h245 listener address. Do not add H245 listener address in case
-      of fast-start. */
+   /* Add h245 listener address. */
+   /* Do not add H245 listener address in case
+      of fast-start. why? */
+   /* May 20110205 */
+   /* Send h245 listener addr any case if H245 connection isn't established */
    if (/* (!OO_TESTFLAG(call->flags, OO_M_FASTSTART) || 
         call->remoteFastStartOLCs.count == 0) && */
        !OO_TESTFLAG (call->flags, OO_M_TUNNELING) &&
-       !call->h245listener && ooCreateH245Listener(call) == OO_OK)
+       ( (!call->h245listener && ooCreateH245Listener(call) == OO_OK) ||
+         !call->pH245Channel))
    {
       connect->m.h245AddressPresent = TRUE;
       connect->h245Address.t = T_H225TransportAddress_ipAddress;
@@ -1997,6 +2012,7 @@ int ooAcceptCall(OOH323CallData *call)
       return OO_FAILED;
    }
    /* memReset(&gH323ep.msgctxt); */
+   ooSendTCSandMSD(call);
    memReset(call->msgctxt);
 
    call->callState = OO_CALL_CONNECTED;
@@ -2721,11 +2737,8 @@ int ooH323MakeCall_helper(OOH323CallData *call)
 
    /* For H.323 version 4 and higher, if fast connect, tunneling should be 
       supported.
+      why?
    */
-   if(OO_TESTFLAG(call->flags, OO_M_FASTSTART)) {
-      q931msg->userInfo->h323_uu_pdu.h245Tunneling = TRUE;
-      OO_SETFLAG(call->flags, OO_M_TUNNELING);
-   }
 
    OOTRACEDBGA3("Built SETUP message (%s, %s)\n", call->callType, 
                  call->callToken);