Merge pull request #703 from anhu/ipv6_part2

improvements for ipv6

apps/wolfssh/wolfssh.c

@@ -991,7 +991,8 @@ static THREAD_RETURN WOLFSSH_THREAD wolfSSH_Client(void* args)
         err_sys("Couldn't set the username.");
 
     build_addr(&clientAddr, config.hostname, config.port);
-    tcp_socket(&sockFd);
+    tcp_socket(&sockFd, ((struct sockaddr_in *)&clientAddr)->sin_family);
+
     ret = connect(sockFd, (const struct sockaddr *)&clientAddr, clientAddrSz);
     if (ret != 0)
         err_sys("Couldn't connect to server.");

apps/wolfsshd/wolfsshd.c

@@ -2374,7 +2374,7 @@ static int StartSSHD(int argc, char** argv)
 #ifdef WOLFSSL_NUCLEUS
             struct addr_struct clientAddr;
 #else
-            SOCKADDR_IN_T clientAddr;
+            struct sockaddr_in6 clientAddr;
             socklen_t           clientAddrSz = sizeof(clientAddr);
 #endif
             conn = (WOLFSSHD_CONNECTION*)WMALLOC(sizeof(WOLFSSHD_CONNECTION), NULL, DYNTYPE_SSHD);
@@ -2396,13 +2396,16 @@ static int StartSSHD(int argc, char** argv)
                 conn->fd = (int)accept(listenFd, (struct sockaddr*)&clientAddr,
                     &clientAddrSz);
                 if (conn->fd >= 0) {
-                    inet_ntop(AF_INET,
+                    if (clientAddr.sin6_family == AF_INET) {
-#ifdef TEST_IPV6
+                        struct sockaddr_in* addr4 =
-                              &clientAddr.sin6_addr,
+                            (struct sockaddr_in*)&clientAddr;
-#else
+                        inet_ntop(AF_INET, &addr4->sin_addr, conn->ip,
-                              &clientAddr.sin_addr,
+                              INET_ADDRSTRLEN);
-#endif /* TEST_IPV6 */
+                    }
-                              conn->ip, INET_ADDRSTRLEN);
+                    else if (clientAddr.sin6_family == AF_INET6) {
+                        inet_ntop(AF_INET6, &clientAddr.sin6_addr, conn->ip,
+                              INET6_ADDRSTRLEN);
+                    }
                 }
 #endif
 

examples/client/client.c

@@ -904,7 +904,8 @@ THREAD_RETURN WOLFSSH_THREAD client_test(void* args)
     }
 
     build_addr(&clientAddr, host, port);
-    tcp_socket(&sockFd);
+    tcp_socket(&sockFd, ((struct sockaddr_in *)&clientAddr)->sin_family);
+
     ret = connect(sockFd, (const struct sockaddr *)&clientAddr, clientAddrSz);
     if (ret != 0)
         err_sys("Couldn't connect to server.");

examples/portfwd/portfwd.c

@@ -380,12 +380,14 @@ THREAD_RETURN WOLFSSH_THREAD portfwd_worker(void* args)
     if (ret != WS_SUCCESS)
         err_sys("Couldn't set the username.");
 
+    /* Socket to SSH peer. */
     build_addr(&hostAddr, host, port);
-    build_addr(&fwdFromHostAddr, fwdFromHost, fwdFromPort);
+    tcp_socket(&sshFd, ((struct sockaddr_in *)&hostAddr)->sin_family);
+
+    /* Receive from client application or connect to server application. */
+    build_addr(&fwdFromHostAddr, fwdFromHost, fwdFromPort);
+    tcp_socket(&listenFd, ((struct sockaddr_in *)&fwdFromHostAddr)->sin_family);
 
-    tcp_socket(&sshFd); /* Socket to SSH peer. */
-    tcp_socket(&listenFd); /* Either receive from client application or connect
-                              to server application. */
     tcp_listen(&listenFd, &fwdFromPort, 1);
 
     printf("Connecting to the SSH server...\n");

examples/scpclient/scpclient.c

@@ -280,8 +280,9 @@ THREAD_RETURN WOLFSSH_THREAD scp_client(void* args)
     {
         printf("IPV4 address\n");
         build_addr(&clientAddr, host, port);
-        tcp_socket(&sockFd);
+        tcp_socket(&sockFd, ((struct sockaddr_in *)&clientAddr)->sin_family);
-        ret = connect(sockFd, (const struct sockaddr *)&clientAddr, clientAddrSz);
+        ret = connect(sockFd, (const struct sockaddr *)&clientAddr,
+                      clientAddrSz);
     }
 
     if (ret != 0)

examples/sftpclient/sftpclient.c

@@ -1366,7 +1366,8 @@ THREAD_RETURN WOLFSSH_THREAD sftpclient_test(void* args)
         err_sys("Couldn't set the username.");
 
     build_addr(&clientAddr, host, port);
-    tcp_socket(&sockFd);
+    tcp_socket(&sockFd, ((struct sockaddr_in *)&clientAddr)->sin_family);
+
     ret = connect(sockFd, (const struct sockaddr *)&clientAddr, clientAddrSz);
     if (ret != 0)
         err_sys("Couldn't connect to server.");

tests/api.c

@@ -921,7 +921,7 @@ static void sftp_client_connect(WOLFSSH_CTX** ctx, WOLFSSH** ssh, int port)
     }
 
     build_addr(&clientAddr, host, port);
-    tcp_socket(&sockFd);
+    tcp_socket(&sockFd, ((struct sockaddr_in *)&clientAddr)->sin_family);
     ret = connect(sockFd, (const struct sockaddr *)&clientAddr, clientAddrSz);
     if (ret != 0){
         wolfSSH_free(*ssh);

wolfssh/test.h

@@ -519,7 +519,7 @@ static INLINE void build_addr(SOCKADDR_IN_T* addr, const char* peer,
 
             memset(&hints, 0, sizeof(hints));
 
-            hints.ai_family   = AF_INET_V;
+            hints.ai_family   = AF_UNSPEC;
             hints.ai_socktype = SOCK_STREAM;
             hints.ai_protocol = IPPROTO_TCP;
 
@@ -546,8 +546,10 @@ static INLINE void build_addr(SOCKADDR_IN_T* addr, const char* peer,
 #endif
 
 
-static INLINE void tcp_socket(WS_SOCKET_T* sockFd)
+static INLINE void tcp_socket(WS_SOCKET_T* sockFd, int targetProtocol)
 {
+    /* targetProtocol is only used if none of these platforms are defined. */
+    WOLFSSH_UNUSED(targetProtocol);
 #ifdef MICROCHIP_MPLAB_HARMONY
     /* creates socket in listen or connect */
     *sockFd = 0;
@@ -558,7 +560,7 @@ static INLINE void tcp_socket(WS_SOCKET_T* sockFd)
 #elif defined(WOLFSSL_NUCLEUS)
     *sockFd = NU_Socket(NU_FAMILY_IP, NU_TYPE_STREAM, 0);
 #else
-    *sockFd = socket(AF_INET_V, SOCK_STREAM, 0);
+    *sockFd = socket(targetProtocol, SOCK_STREAM, 0);
 #endif
 
 #ifdef USE_WINDOWS_API
@@ -637,8 +639,7 @@ static INLINE void tcp_listen(WS_SOCKET_T* sockfd, word16* port, int useAnyAddr)
     /* don't use INADDR_ANY by default, firewall may block, make user switch
        on */
     build_addr(&addr, (useAnyAddr ? INADDR_ANY : wolfSshIp), *port);
-    tcp_socket(sockfd);
+    tcp_socket(sockfd, ((struct sockaddr_in *)&addr)->sin_family);
-
 #if !defined(USE_WINDOWS_API) && !defined(WOLFSSL_MDK_ARM) \
                               && !defined(WOLFSSL_KEIL_TCP_NET) \
                               && !defined(WOLFSSL_NUCLEUS) \