Remove anything related to the old SocksSockets option

At this commit, the SocksSocketsGroupWritable option is renamed to
UnixSocksGroupWritable. A deprecated warning is triggered if the old option is
used and tor will use it properly.

Fixes #24343
Signed-off-by: David Goulet <dgoulet@torproject.org>

changes/ticket24343

+  o Minor bugfixes (man page, SocksPort):
+    - Remove dead code about the old "SocksSockets" option. To do so, the
+      SocksSocketsGroupWritable option has been renamed to
+      UnixSockssGroupWritable which does the same exact thing. The old option
+      is still usable but will warn that it is deprecated. Fixes bug 24343;
+      bugfix on 0.2.6.3.

doc/tor.1.txt

@@ -238,7 +238,7 @@ GENERAL OPTIONS
 [[RelayBandwidthBurst]] **RelayBandwidthBurst** __N__ **bytes**|**KBytes**|**MBytes**|**GBytes**|**TBytes**|**KBits**|**MBits**|**GBits**|**TBits**::
     If not 0, limit the maximum token bucket size (also known as the burst) for
     \_relayed traffic_ to the given number of bytes in each direction.
-    They do not include directory fetches by the relay (from authority 
+    They do not include directory fetches by the relay (from authority
     or other relays), because that is considered "client" activity. (Default: 0)
 
 [[PerConnBWRate]] **PerConnBWRate** __N__ **bytes**|**KBytes**|**MBytes**|**GBytes**|**TBytes**|**KBits**|**MBits**|**GBits**|**TBits**::
@@ -608,10 +608,10 @@ GENERAL OPTIONS
     in accordance to RFC 1929. Both username and password must be between 1 and
     255 characters.
 
-[[SocksSocketsGroupWritable]] **SocksSocketsGroupWritable** **0**|**1**::
+[[UnixSocksGroupWritable]] **UnixSocksGroupWritable** **0**|**1**::
     If this option is set to 0, don't allow the filesystem group to read and
-    write unix sockets (e.g. SocksSocket). If the option is set to 1, make
-    the SocksSocket socket readable and writable by the default GID. (Default: 0)
+    write unix sockets (e.g. SocksPort unix:). If the option is set to 1, make
+    the Unix socket readable and writable by the default GID. (Default: 0)
 
 [[KeepalivePeriod]] **KeepalivePeriod** __NUM__::
     To keep firewalls from expiring connections, send a padding keepalive cell

src/or/config.c

@@ -171,6 +171,7 @@ static config_abbrev_t option_abbrevs_[] = {
   { "BridgeAuthoritativeDirectory", "BridgeAuthoritativeDir", 0, 0},
   { "HashedControlPassword", "__HashedControlSessionPassword", 1, 0},
   { "VirtualAddrNetwork", "VirtualAddrNetworkIPv4", 0, 0},
+  { "SocksSocketsGroupWritable", "UnixSocksGroupWritable", 0, 1},
   { NULL, NULL, 0, 0},
 };
 
@@ -284,7 +285,7 @@ static config_var_t option_vars_[] = {
   V(ControlPortWriteToFile,      FILENAME, NULL),
   V(ControlSocket,               LINELIST, NULL),
   V(ControlSocketsGroupWritable, BOOL,     "0"),
-  V(SocksSocketsGroupWritable,   BOOL,     "0"),
+  V(UnixSocksGroupWritable,    BOOL,     "0"),
   V(CookieAuthentication,        BOOL,     "0"),
   V(CookieAuthFileGroupReadable, BOOL,     "0"),
   V(CookieAuthFile,              STRING,   NULL),
@@ -7356,7 +7357,7 @@ parse_ports(or_options_t *options, int validate_only,
 
   *n_ports_out = 0;
 
-  const unsigned gw_flag = options->SocksSocketsGroupWritable ?
+  const unsigned gw_flag = options->UnixSocksGroupWritable ?
     CL_PORT_DFLT_GROUP_WRITABLE : 0;
   if (parse_port_config(ports,
              options->SocksPort_lines,

src/or/connection.c

@@ -336,8 +336,6 @@ entry_connection_new(int type, int socket_family)
     entry_conn->entry_cfg.ipv4_traffic = 1;
   else if (socket_family == AF_INET6)
     entry_conn->entry_cfg.ipv6_traffic = 1;
-  else if (socket_family == AF_UNIX)
-    entry_conn->is_socks_socket = 1;
   return entry_conn;
 }
 

src/or/main.c

@@ -342,7 +342,7 @@ connection_remove(connection_t *conn)
             smartlist_len(connection_array));
 
   if (conn->type == CONN_TYPE_AP && conn->socket_family == AF_UNIX) {
-    log_info(LD_NET, "Closing SOCKS SocksSocket connection");
+    log_info(LD_NET, "Closing SOCKS Unix socket connection");
   }
 
   control_event_conn_bandwidth(conn);

src/or/or.h

@@ -1818,9 +1818,6 @@ typedef struct entry_connection_t {
    * the exit has sent a CONNECTED cell) and we have chosen to use it.
    */
   unsigned int may_use_optimistic_data : 1;
-
-  /** Are we a socks SocksSocket listener? */
-  unsigned int is_socks_socket:1;
 } entry_connection_t;
 
 /** Subtype of connection_t for an "directory connection" -- that is, an HTTP
@@ -3794,7 +3791,7 @@ typedef struct {
                                  * for control connections. */
 
   int ControlSocketsGroupWritable; /**< Boolean: Are control sockets g+rw? */
-  int SocksSocketsGroupWritable; /**< Boolean: Are SOCKS sockets g+rw? */
+  int UnixSocksGroupWritable; /**< Boolean: Are SOCKS Unix sockets g+rw? */
   /** Ports to listen on for directory connections. */
   config_line_t *DirPort_lines;
   config_line_t *DNSPort_lines; /**< Ports to listen on for DNS requests. */