FdSocket, HandleSocket: store a notional peer address.

In the case where these socket types are constructed because of a
local proxy command, we do actually have a SockAddr representing the
logical host we were trying to make a connection to. So we might as
well store it in the socket implementation, and then we can include it
in the PLUGLOG_CONNECT_SUCCESS call to make the log message more
informative.

unix/fd-socket.c

@@ -23,6 +23,8 @@ typedef struct FdSocket {
 
     int pending_error;
 
+    SockAddr *addr;
+    int port;
     Plug *plug;
 
     Socket sock;
@@ -134,6 +136,9 @@ static void fdsocket_close(Socket *s)
     bufchain_clear(&fds->pending_input_data);
     bufchain_clear(&fds->pending_output_data);
 
+    if (fds->addr)
+        sk_addr_free(fds->addr);
+
     delete_callbacks_for_context(fds);
 
     sfree(fds);
@@ -318,15 +323,19 @@ static const SocketVtable FdSocket_sockvt = {
 static void fdsocket_connect_success_callback(void *ctx)
 {
     FdSocket *fds = (FdSocket *)ctx;
-    plug_log(fds->plug, PLUGLOG_CONNECT_SUCCESS, NULL, 0, NULL, 0);
+    plug_log(fds->plug, PLUGLOG_CONNECT_SUCCESS, fds->addr, fds->port,
+             NULL, 0);
 }
 
-Socket *make_fd_socket(int infd, int outfd, int inerrfd, Plug *plug)
+Socket *make_fd_socket(int infd, int outfd, int inerrfd,
+                       SockAddr *addr, int port, Plug *plug)
 {
     FdSocket *fds;
 
     fds = snew(FdSocket);
     fds->sock.vt = &FdSocket_sockvt;
+    fds->addr = addr;
+    fds->port = port;
     fds->plug = plug;
     fds->outgoingeof = EOF_NO;
     fds->pending_error = 0;

unix/local-proxy.c

@@ -98,8 +98,5 @@ Socket *platform_new_connection(SockAddr *addr, const char *hostname,
         inerrfd = -1;
     }
 
-    /* We are responsible for this and don't need it any more */
-    sk_addr_free(addr);
-
-    return make_fd_socket(infd, outfd, inerrfd, plug);
+    return make_fd_socket(infd, outfd, inerrfd, addr, port, plug);
 }

unix/platform.h

@@ -380,7 +380,8 @@ bool so_peercred(int fd, int *pid, int *uid, int *gid);
 /*
  * uxfdsock.c.
  */
-Socket *make_fd_socket(int infd, int outfd, int inerrfd, Plug *plug);
+Socket *make_fd_socket(int infd, int outfd, int inerrfd,
+                       SockAddr *addr, int port, Plug *plug);
 
 /*
  * Default font setting, which can vary depending on NOT_X_WINDOWS.

unix/psusan.c

@@ -411,7 +411,7 @@ int main(int argc, char **argv)
     } else {
         struct server_instance *inst;
         Plug *plug = server_conn_plug(&scfg, &inst);
-        ssh_server_start(plug, make_fd_socket(0, 1, -1, plug));
+        ssh_server_start(plug, make_fd_socket(0, 1, -1, NULL, 0, plug));
         log_to_stderr(inst->id, "running directly on stdio");
     }
 

unix/uppity.c

@@ -869,7 +869,7 @@ int main(int argc, char **argv)
     } else {
         struct server_instance *inst;
         Plug *plug = server_conn_plug(&scfg, &inst);
-        ssh_server_start(plug, make_fd_socket(0, 1, -1, plug));
+        ssh_server_start(plug, make_fd_socket(0, 1, -1, NULL, 0, plug));
         log_to_stderr(inst->id, "speaking SSH on stdio");
     }
 

windows/handle-socket.c

@@ -40,6 +40,8 @@ typedef struct HandleSocket {
 
     char *error;
 
+    SockAddr *addr;
+    int port;
     Plug *plug;
 
     Socket sock;
@@ -128,6 +130,9 @@ static void sk_handle_close(Socket *s)
         CloseHandle(hs->recv_H);
     bufchain_clear(&hs->inputdata);
 
+    if (hs->addr)
+        sk_addr_free(hs->addr);
+
     delete_callbacks_for_context(hs);
 
     sfree(hs);
@@ -317,17 +322,20 @@ static const SocketVtable HandleSocket_sockvt = {
 static void sk_handle_connect_success_callback(void *ctx)
 {
     HandleSocket *hs = (HandleSocket *)ctx;
-    plug_log(hs->plug, PLUGLOG_CONNECT_SUCCESS, NULL, 0, NULL, 0);
+    plug_log(hs->plug, PLUGLOG_CONNECT_SUCCESS, hs->addr, hs->port, NULL, 0);
 }
 
 Socket *make_handle_socket(HANDLE send_H, HANDLE recv_H, HANDLE stderr_H,
-                           Plug *plug, bool overlapped)
+                           SockAddr *addr, int port, Plug *plug,
+                           bool overlapped)
 {
     HandleSocket *hs;
     int flags = (overlapped ? HANDLE_FLAG_OVERLAPPED : 0);
 
     hs = snew(HandleSocket);
     hs->sock.vt = &HandleSocket_sockvt;
+    hs->addr = addr;
+    hs->port = port;
     hs->plug = plug;
     hs->error = NULL;
     hs->frozen = UNFROZEN;

windows/local-proxy.c

@@ -30,9 +30,6 @@ Socket *platform_new_connection(SockAddr *addr, const char *hostname,
 
     cmd = format_telnet_command(addr, port, conf);
 
-    /* We are responsible for this and don't need it any more */
-    sk_addr_free(addr);
-
     {
         char *msg = dupprintf("Starting local proxy command: %s", cmd);
         plug_log(plug, PLUGLOG_PROXY_MSG, NULL, 0, msg, 0);
@@ -103,5 +100,5 @@ Socket *platform_new_connection(SockAddr *addr, const char *hostname,
         CloseHandle(cmd_err_to_us);
 
     return make_handle_socket(us_to_cmd, us_from_cmd, us_from_cmd_err,
-                              plug, false);
+                              addr, port, plug, false);
 }

windows/named-pipe-client.c

@@ -90,5 +90,6 @@ Socket *new_named_pipe_client(const char *pipename, Plug *plug)
     if (pipehandle == INVALID_HANDLE_VALUE)
         return new_error_socket_consume_string(plug, err);
     else
-        return make_handle_socket(pipehandle, pipehandle, NULL, plug, true);
+        return make_handle_socket(pipehandle, pipehandle, NULL, NULL, 0,
+                                  plug, true);
 }

windows/named-pipe-server.c

@@ -112,7 +112,7 @@ static Socket *named_pipe_accept(accept_ctx_t ctx, Plug *plug)
 {
     HANDLE conn = (HANDLE)ctx.p;
 
-    return make_handle_socket(conn, conn, NULL, plug, true);
+    return make_handle_socket(conn, conn, NULL, NULL, 0, plug, true);
 }
 
 static void named_pipe_accept_loop(NamedPipeServerSocket *ps,

windows/platform.h

@@ -341,7 +341,8 @@ extern HANDLE winselcli_event;
  * Network-subsystem-related functions provided in other Windows modules.
  */
 Socket *make_handle_socket(HANDLE send_H, HANDLE recv_H, HANDLE stderr_H,
-                           Plug *plug, bool overlapped); /* winhsock */
+                           SockAddr *addr, int port, Plug *plug,
+                           bool overlapped); /* winhsock */
 Socket *new_named_pipe_client(const char *pipename, Plug *plug); /* winnpc */
 Socket *new_named_pipe_listener(const char *pipename, Plug *plug); /* winnps */