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transport_config.h (2955B)

      1 /* Copyright (c) 2001 Matej Pfajfar.
      2 * Copyright (c) 2001-2004, Roger Dingledine.
      3 * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
      4 * Copyright (c) 2007-2021, The Tor Project, Inc. */
      5 /* See LICENSE for licensing information */
      6 
      7 /**
      8 * @file transport_config.h
      9 * @brief Header for feature/relay/transport_config.c
     10 **/
     11 
     12 #ifndef TOR_FEATURE_RELAY_TRANSPORT_CONFIG_H
     13 #define TOR_FEATURE_RELAY_TRANSPORT_CONFIG_H
     14 
     15 #ifdef HAVE_MODULE_RELAY
     16 
     17 #include "lib/testsupport/testsupport.h"
     18 
     19 struct or_options_t;
     20 struct smartlist_t;
     21 
     22 int options_validate_server_transport(const struct or_options_t *old_options,
     23                                      struct or_options_t *options,
     24                                      char **msg);
     25 
     26 char *pt_get_bindaddr_from_config(const char *transport);
     27 struct smartlist_t *pt_get_options_for_server_transport(const char *transport);
     28 
     29 int options_act_server_transport(const struct or_options_t *old_options);
     30 
     31 #ifdef RELAY_TRANSPORT_CONFIG_PRIVATE
     32 
     33 STATIC struct smartlist_t *get_options_from_transport_options_line(
     34                      const char *line,
     35                      const char *transport);
     36 
     37 #endif /* defined(RELAY_TRANSPORT_CONFIG_PRIVATE) */
     38 
     39 #else /* !defined(HAVE_MODULE_RELAY) */
     40 
     41 /** When tor is compiled with the relay module disabled, it can't be
     42 * configured with server pluggable transports.
     43 *
     44 * Returns -1 and sets msg to a newly allocated string, if ExtORPort,
     45 * ServerTransportPlugin, ServerTransportListenAddr, or
     46 * ServerTransportOptions are set in options. Otherwise returns 0. */
     47 static inline int
     48 options_validate_server_transport(const struct or_options_t *old_options,
     49                                  struct or_options_t *options,
     50                                  char **msg)
     51 {
     52  (void)old_options;
     53 
     54  /* These ExtORPort checks are too strict, and will reject valid configs
     55   * that disable ports, like "ExtORPort 0". */
     56  if (options->ServerTransportPlugin ||
     57      options->ServerTransportListenAddr ||
     58      options->ServerTransportOptions ||
     59      options->ExtORPort_lines) {
     60    /* REJECT() this configuration */
     61    *msg = tor_strdup("This tor was built with relay mode disabled. "
     62                      "It can not be configured with an ExtORPort, "
     63                      "a ServerTransportPlugin, a ServerTransportListenAddr, "
     64                      "or ServerTransportOptions.");
     65    return -1;
     66  }
     67 
     68  return 0;
     69 }
     70 
     71 #define pt_get_bindaddr_from_config(transport) \
     72  (((void)(transport)),NULL)
     73 
     74 /* 31851: called from client/transports.c, but only from server code */
     75 #define pt_get_options_for_server_transport(transport) \
     76  (((void)(transport)),NULL)
     77 
     78 #define options_validate_server_transport(old_options, options, msg) \
     79  (((void)(old_options)),((void)(options)),((void)(msg)),0)
     80 #define options_act_server_transport(old_options) \
     81  (((void)(old_options)),0)
     82 
     83 #endif /* defined(HAVE_MODULE_RELAY) */
     84 
     85 #endif /* !defined(TOR_FEATURE_RELAY_TRANSPORT_CONFIG_H) */