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 routermode.c
9  * @brief Check if we're running as a relay/cache.
10  **/
11 
12 #include "core/or/or.h"
13 
14 #include "app/config/config.h"
15 #include "feature/relay/router.h"
16 #include "feature/relay/routermode.h"
17 
18 /** Return 1 if we are configured to accept either relay or directory requests
19  * from clients and we aren't at risk of exceeding our bandwidth limits, thus
20  * we should be a directory server. If not, return 0.
21  */
22 int
dir_server_mode(const or_options_t * options)23 dir_server_mode(const or_options_t *options)
24 {
25   if (!options->DirCache)
26     return 0;
27   return options->DirPort_set ||
28     (server_mode(options) && router_has_bandwidth_to_be_dirserver(options));
29 }
30 
31 /** Return true iff we are trying to be a server.
32  */
33 MOCK_IMPL(int,
34 server_mode,(const or_options_t *options))
35 {
36   if (options->ClientOnly) return 0;
37   return (options->ORPort_set);
38 }
39 
40 /** Return true iff we are trying to be a non-bridge server.
41  */
42 MOCK_IMPL(int,
43 public_server_mode,(const or_options_t *options))
44 {
45   if (!server_mode(options)) return 0;
46   return (!options->BridgeRelay);
47 }
48 
49 /** Remember if we've advertised ourselves to the dirservers. */
50 static int server_is_advertised=0;
51 
52 /** Return true iff we have published our descriptor lately.
53  */
54 MOCK_IMPL(int,
55 advertised_server_mode,(void))
56 {
57   return server_is_advertised;
58 }
59 
60 /**
61  * Called with a boolean: set whether we have recently published our
62  * descriptor.
63  */
64 void
set_server_advertised(int s)65 set_server_advertised(int s)
66 {
67   server_is_advertised = s;
68 }
69