Let the users set ControlListenAddress in the torrc.

This can be dangerous, but there are some cases (like a secured
LAN) where it makes sense.


svn:r5997

src/or/config.c

@@ -137,6 +137,7 @@ static config_var_t _option_vars[] = {
   VAR("ClientOnly",          BOOL,     ClientOnly,           "0"),
   VAR("ConnLimit",           UINT,     ConnLimit,            "1024"),
   VAR("ContactInfo",         STRING,   ContactInfo,          NULL),
+  VAR("ControlListenAddress",LINELIST, ControlListenAddress, NULL),
   VAR("ControlPort",         UINT,     ControlPort,          "0"),
   VAR("CookieAuthentication",BOOL,     CookieAuthentication, "0"),
   VAR("DataDirectory",       STRING,   DataDirectory,        NULL),
@@ -1906,6 +1907,9 @@ options_validate(or_options_t *old_options, or_options_t *options,
   if (options->DirPort == 0 && options->DirListenAddress != NULL)
     REJECT("DirPort must be defined if DirListenAddress is defined.");
 
+  if (options->ControlPort == 0 && options->ControlListenAddress != NULL)
+    REJECT("ControlPort must be defined if ControlListenAddress is defined.");
+
 #if 0 /* don't complain, since a standard configuration does this! */
   if (options->SocksPort == 0 && options->SocksListenAddress != NULL)
     REJECT("SocksPort must be defined if SocksListenAddress is defined.");

src/or/connection.c

@@ -973,7 +973,8 @@ retry_all_listeners(int force, smartlist_t *replaced_conns,
                       options->SocksPort, "127.0.0.1", force,
                       replaced_conns, new_conns)<0)
     return -1;
-  if (retry_listeners(CONN_TYPE_CONTROL_LISTENER, NULL,
+  if (retry_listeners(CONN_TYPE_CONTROL_LISTENER,
+                      options->ControlListenAddress,
                       options->ControlPort, "127.0.0.1", force,
                       replaced_conns, new_conns)<0)
     return -1;

src/or/or.h

@@ -1240,6 +1240,8 @@ typedef struct {
   config_line_t *ORListenAddress;
   /** Addresses to bind for listening for directory connections. */
   config_line_t *DirListenAddress;
+  /** Addresses to bind for listening for control connections. */
+  config_line_t *ControlListenAddress;
   /** Local address to bind outbound sockets */
   char *OutboundBindAddress;
   /** Directory server only: which versions of