Revert "handle sctp shutdown issue mentioned here: sctplab/usrsctp#147"

This reverts commit 4e13ff8.

.travis.yml

@@ -137,13 +137,13 @@ matrix:
     # Old Version GCC 4.4
     - name: "Linux GCC 4.4 Build"
       os: linux
-      before_install:
-        # TODO: Remove the following line. This is only a workaround for enabling IPv6, https://github.com/travis-ci/travis-ci/issues/8891.
-        - sudo sh -c 'echo 0 > /proc/sys/net/ipv6/conf/all/disable_ipv6'
-        - sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
-        - sudo apt-get -q update
-        - sudo apt-get -y install gcc-4.4
-        - sudo apt-get -y install gdb
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - gcc-4.4
+            - gdb
       compiler: gcc
       before_script: export CC=gcc-4.4 && mkdir build && cd build && cmake .. -DBUILD_TEST=TRUE
 

src/source/Sctp/Sctp.c

@@ -93,7 +93,6 @@ STATUS createSctpSession(PSctpSessionCallbacks pSctpSessionCallbacks, PSctpSessi
     MEMSET(&localConn, 0x00, SIZEOF(struct sockaddr_conn));
     MEMSET(&remoteConn, 0x00, SIZEOF(struct sockaddr_conn));
 
-    ATOMIC_STORE(&pSctpSession->shutdownStatus, SCTP_SESSION_ACTIVE);
     pSctpSession->sctpSessionCallbacks = *pSctpSessionCallbacks;
 
     CHK_STATUS(initSctpAddrConn(pSctpSession, &localConn));
@@ -131,19 +130,13 @@ STATUS freeSctpSession(PSctpSession* ppSctpSession)
     ENTERS();
     STATUS retStatus = STATUS_SUCCESS;
     PSctpSession pSctpSession;
-    UINT64 shutdownTimeout;
 
     CHK(ppSctpSession != NULL, STATUS_NULL_ARG);
 
     pSctpSession = *ppSctpSession;
 
     CHK(pSctpSession != NULL, retStatus);
 
-    usrsctp_deregister_address(pSctpSession);
-    /* handle issue mentioned here: https://github.com/sctplab/usrsctp/issues/147
-     * the change in shutdownStatus will trigger onSctpOutboundPacket to return -1 */
-    ATOMIC_STORE(&pSctpSession->shutdownStatus, SCTP_SESSION_SHUTDOWN_INITIATED);
-
     if (pSctpSession->socket != NULL) {
         usrsctp_set_ulpinfo(pSctpSession->socket, NULL);
         usrsctp_shutdown(pSctpSession->socket, SHUT_RDWR);
@@ -284,8 +277,6 @@ INT32 onSctpOutboundPacket(PVOID addr, PVOID data, ULONG length, UINT8 tos, UINT
         return -1;
     }
 
-    pSctpSession->sctpSessionCallbacks.outboundPacketFunc(pSctpSession->sctpSessionCallbacks.customData, data, length);
-
     return 0;
 }