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Diffstat (limited to 'src/cli/core/gnunet-core.c')
-rw-r--r-- | src/cli/core/gnunet-core.c | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/src/cli/core/gnunet-core.c b/src/cli/core/gnunet-core.c new file mode 100644 index 000000000..d90c8e1f5 --- /dev/null +++ b/src/cli/core/gnunet-core.c | |||
@@ -0,0 +1,208 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2011, 2012, 2014 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file core/gnunet-core.c | ||
23 | * @brief Print information about other peers known to CORE. | ||
24 | * @author Nathan Evans | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_util_lib.h" | ||
28 | #include "gnunet_core_service.h" | ||
29 | |||
30 | |||
31 | /** | ||
32 | * Option -m. | ||
33 | */ | ||
34 | static int monitor_connections; | ||
35 | |||
36 | /** | ||
37 | * Handle to the CORE monitor. | ||
38 | */ | ||
39 | static struct GNUNET_CORE_MonitorHandle *mh; | ||
40 | |||
41 | |||
42 | /** | ||
43 | * Task run in monitor mode when the user presses CTRL-C to abort. | ||
44 | * Stops monitoring activity. | ||
45 | * | ||
46 | * @param cls NULL | ||
47 | */ | ||
48 | static void | ||
49 | shutdown_task (void *cls) | ||
50 | { | ||
51 | (void) cls; | ||
52 | if (NULL != mh) | ||
53 | { | ||
54 | GNUNET_CORE_monitor_stop (mh); | ||
55 | mh = NULL; | ||
56 | } | ||
57 | } | ||
58 | |||
59 | |||
60 | /** | ||
61 | * Function called to notify core users that another | ||
62 | * peer changed its state with us. | ||
63 | * | ||
64 | * @param cls closure | ||
65 | * @param peer the peer that changed state | ||
66 | * @param state new state of the peer | ||
67 | * @param timeout timeout for the new state | ||
68 | */ | ||
69 | static void | ||
70 | monitor_cb (void *cls, | ||
71 | const struct GNUNET_PeerIdentity *peer, | ||
72 | enum GNUNET_CORE_KxState state, | ||
73 | struct GNUNET_TIME_Absolute timeout) | ||
74 | { | ||
75 | struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get (); | ||
76 | const char *now_str; | ||
77 | const char *state_str; | ||
78 | |||
79 | (void) cls; | ||
80 | if (((NULL == peer) || (GNUNET_CORE_KX_ITERATION_FINISHED == state)) && | ||
81 | (GNUNET_NO == monitor_connections)) | ||
82 | { | ||
83 | GNUNET_SCHEDULER_shutdown (); | ||
84 | return; | ||
85 | } | ||
86 | |||
87 | switch (state) | ||
88 | { | ||
89 | case GNUNET_CORE_KX_STATE_DOWN: | ||
90 | /* should never happen, as we immediately send the key */ | ||
91 | state_str = _ ("fresh connection"); | ||
92 | break; | ||
93 | |||
94 | case GNUNET_CORE_KX_STATE_KEY_SENT: | ||
95 | state_str = _ ("key sent"); | ||
96 | break; | ||
97 | |||
98 | case GNUNET_CORE_KX_STATE_KEY_RECEIVED: | ||
99 | state_str = _ ("key received"); | ||
100 | break; | ||
101 | |||
102 | case GNUNET_CORE_KX_STATE_UP: | ||
103 | state_str = _ ("connection established"); | ||
104 | break; | ||
105 | |||
106 | case GNUNET_CORE_KX_STATE_REKEY_SENT: | ||
107 | state_str = _ ("rekeying"); | ||
108 | break; | ||
109 | |||
110 | case GNUNET_CORE_KX_PEER_DISCONNECT: | ||
111 | state_str = _ ("disconnected"); | ||
112 | break; | ||
113 | |||
114 | case GNUNET_CORE_KX_ITERATION_FINISHED: | ||
115 | return; | ||
116 | |||
117 | case GNUNET_CORE_KX_CORE_DISCONNECT: | ||
118 | fprintf (stderr, | ||
119 | "%s\n", | ||
120 | _ ("Connection to CORE service lost (reconnecting)")); | ||
121 | return; | ||
122 | |||
123 | default: | ||
124 | state_str = _ ("unknown state"); | ||
125 | break; | ||
126 | } | ||
127 | now_str = GNUNET_STRINGS_absolute_time_to_string (now); | ||
128 | fprintf (stdout, | ||
129 | _ ("%24s: %-30s %4s (timeout in %6s)\n"), | ||
130 | now_str, | ||
131 | state_str, | ||
132 | GNUNET_i2s (peer), | ||
133 | GNUNET_STRINGS_relative_time_to_string ( | ||
134 | GNUNET_TIME_absolute_get_remaining (timeout), | ||
135 | GNUNET_YES)); | ||
136 | } | ||
137 | |||
138 | |||
139 | /** | ||
140 | * Main function that will be run by the scheduler. | ||
141 | * | ||
142 | * @param cls closure | ||
143 | * @param args remaining command-line arguments | ||
144 | * @param cfgfile name of the configuration file used (for saving, can be NULL!) | ||
145 | * @param cfg configuration | ||
146 | */ | ||
147 | static void | ||
148 | run (void *cls, | ||
149 | char *const *args, | ||
150 | const char *cfgfile, | ||
151 | const struct GNUNET_CONFIGURATION_Handle *cfg) | ||
152 | { | ||
153 | (void) cls; | ||
154 | (void) cfgfile; | ||
155 | if (NULL != args[0]) | ||
156 | { | ||
157 | fprintf (stderr, _ ("Invalid command line argument `%s'\n"), args[0]); | ||
158 | return; | ||
159 | } | ||
160 | mh = GNUNET_CORE_monitor_start (cfg, &monitor_cb, NULL); | ||
161 | if (NULL == mh) | ||
162 | { | ||
163 | fprintf (stderr, "%s", _ ("Failed to connect to CORE service!\n")); | ||
164 | return; | ||
165 | } | ||
166 | GNUNET_SCHEDULER_add_shutdown (&shutdown_task, NULL); | ||
167 | } | ||
168 | |||
169 | |||
170 | /** | ||
171 | * The main function to obtain peer information from CORE. | ||
172 | * | ||
173 | * @param argc number of arguments from the command line | ||
174 | * @param argv command line arguments | ||
175 | * @return 0 ok, 1 on error | ||
176 | */ | ||
177 | int | ||
178 | main (int argc, char *const *argv) | ||
179 | { | ||
180 | int res; | ||
181 | struct GNUNET_GETOPT_CommandLineOption options[] = | ||
182 | { GNUNET_GETOPT_option_flag ( | ||
183 | 'm', | ||
184 | "monitor", | ||
185 | gettext_noop ( | ||
186 | "provide information about all current connections (continuously)"), | ||
187 | &monitor_connections), | ||
188 | GNUNET_GETOPT_OPTION_END }; | ||
189 | |||
190 | if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv)) | ||
191 | return 2; | ||
192 | res = GNUNET_PROGRAM_run (argc, | ||
193 | argv, | ||
194 | "gnunet-core", | ||
195 | gettext_noop ( | ||
196 | "Print information about connected peers."), | ||
197 | options, | ||
198 | &run, | ||
199 | NULL); | ||
200 | |||
201 | GNUNET_free_nz ((void *) argv); | ||
202 | if (GNUNET_OK == res) | ||
203 | return 0; | ||
204 | return 1; | ||
205 | } | ||
206 | |||
207 | |||
208 | /* end of gnunet-core.c */ | ||