diff options
author | irungentoo <irungentoo@gmail.com> | 2016-01-04 22:43:36 -0500 |
---|---|---|
committer | irungentoo <irungentoo@gmail.com> | 2016-01-04 22:43:36 -0500 |
commit | c6bed82d47aa39709bdd568fccc3847714ed1b74 (patch) | |
tree | 4e2dd8676a53e78a5b84e3abd68cdbe82a636737 /other/bootstrap_daemon/src | |
parent | 760f20c9455c2ef33ec9d242f209a1543f6acaf4 (diff) | |
parent | 9d1efd594914629204d4cd1a84678daf67eb8068 (diff) |
Merge branch 'tox-bootstrapd-docker-support' of https://github.com/nurupo/InsertProjectNameHere
Diffstat (limited to 'other/bootstrap_daemon/src')
-rw-r--r-- | other/bootstrap_daemon/src/Makefile.inc | 38 | ||||
-rw-r--r-- | other/bootstrap_daemon/src/command_line_arguments.c | 145 | ||||
-rw-r--r-- | other/bootstrap_daemon/src/command_line_arguments.h | 42 | ||||
-rw-r--r-- | other/bootstrap_daemon/src/config.c | 426 | ||||
-rw-r--r-- | other/bootstrap_daemon/src/config.h | 52 | ||||
-rw-r--r-- | other/bootstrap_daemon/src/config_defaults.h | 42 | ||||
-rw-r--r-- | other/bootstrap_daemon/src/global.h | 34 | ||||
-rw-r--r-- | other/bootstrap_daemon/src/log.c | 117 | ||||
-rw-r--r-- | other/bootstrap_daemon/src/log.h | 64 | ||||
-rw-r--r-- | other/bootstrap_daemon/src/tox-bootstrapd.c | 342 |
10 files changed, 1302 insertions, 0 deletions
diff --git a/other/bootstrap_daemon/src/Makefile.inc b/other/bootstrap_daemon/src/Makefile.inc new file mode 100644 index 00000000..a0d75fa0 --- /dev/null +++ b/other/bootstrap_daemon/src/Makefile.inc | |||
@@ -0,0 +1,38 @@ | |||
1 | if BUILD_DHT_BOOTSTRAP_DAEMON | ||
2 | |||
3 | bin_PROGRAMS += tox-bootstrapd | ||
4 | |||
5 | tox_bootstrapd_SOURCES = \ | ||
6 | ../other/bootstrap_daemon/src/command_line_arguments.c \ | ||
7 | ../other/bootstrap_daemon/src/command_line_arguments.h \ | ||
8 | ../other/bootstrap_daemon/src/config.c \ | ||
9 | ../other/bootstrap_daemon/src/config_defaults.h \ | ||
10 | ../other/bootstrap_daemon/src/config.h \ | ||
11 | ../other/bootstrap_daemon/src/log.c \ | ||
12 | ../other/bootstrap_daemon/src/log.h \ | ||
13 | ../other/bootstrap_daemon/src/tox-bootstrapd.c \ | ||
14 | ../other/bootstrap_node_packets.c \ | ||
15 | ../other/bootstrap_node_packets.h | ||
16 | |||
17 | |||
18 | tox_bootstrapd_CFLAGS = \ | ||
19 | -I$(top_srcdir)/other/bootstrap_daemon \ | ||
20 | $(LIBSODIUM_CFLAGS) \ | ||
21 | $(NACL_CFLAGS) \ | ||
22 | $(LIBCONFIG_CFLAGS) | ||
23 | |||
24 | tox_bootstrapd_LDADD = \ | ||
25 | $(LIBSODIUM_LDFLAGS) \ | ||
26 | $(NACL_LDFLAGS) \ | ||
27 | libtoxcore.la \ | ||
28 | $(LIBCONFIG_LIBS) \ | ||
29 | $(LIBSODIUM_LIBS) \ | ||
30 | $(NACL_LIBS) | ||
31 | |||
32 | endif | ||
33 | |||
34 | EXTRA_DIST += \ | ||
35 | $(top_srcdir)/other/bootstrap_daemon/tox-bootstrapd.conf \ | ||
36 | $(top_srcdir)/other/bootstrap_daemon/tox-bootstrapd.service \ | ||
37 | $(top_srcdir)/other/bootstrap_daemon/tox-bootstrapd.sh | ||
38 | |||
diff --git a/other/bootstrap_daemon/src/command_line_arguments.c b/other/bootstrap_daemon/src/command_line_arguments.c new file mode 100644 index 00000000..187fa786 --- /dev/null +++ b/other/bootstrap_daemon/src/command_line_arguments.c | |||
@@ -0,0 +1,145 @@ | |||
1 | /* command_line_arguments.c | ||
2 | * | ||
3 | * Tox DHT bootstrap daemon. | ||
4 | * Command line argument handling. | ||
5 | * | ||
6 | * Copyright (C) 2015-2016 Tox project All Rights Reserved. | ||
7 | * | ||
8 | * This file is part of Tox. | ||
9 | * | ||
10 | * Tox is free software: you can redistribute it and/or modify | ||
11 | * it under the terms of the GNU General Public License as published by | ||
12 | * the Free Software Foundation, either version 3 of the License, or | ||
13 | * (at your option) any later version. | ||
14 | * | ||
15 | * Tox is distributed in the hope that it will be useful, | ||
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
18 | * GNU General Public License for more details. | ||
19 | * | ||
20 | * You should have received a copy of the GNU General Public License | ||
21 | * along with Tox. If not, see <http://www.gnu.org/licenses/>. | ||
22 | * | ||
23 | */ | ||
24 | |||
25 | #include "command_line_arguments.h" | ||
26 | |||
27 | #include "global.h" | ||
28 | |||
29 | #include <getopt.h> | ||
30 | |||
31 | #include <stdlib.h> | ||
32 | #include <string.h> | ||
33 | |||
34 | |||
35 | /** | ||
36 | * Prints --help message | ||
37 | */ | ||
38 | void print_help() | ||
39 | { | ||
40 | // 2 space ident | ||
41 | // make sure all lines fit into 80 columns | ||
42 | // make sure options are listed in alphabetical order | ||
43 | write_log(LOG_LEVEL_INFO, | ||
44 | "Usage: tox-bootstrapd [OPTION]... --config=FILE_PATH\n" | ||
45 | "\n" | ||
46 | "Options:\n" | ||
47 | " --config=FILE_PATH Specify path to the config file.\n" | ||
48 | " This is a required option.\n" | ||
49 | " Set FILE_PATH to a path to an empty file in order to\n" | ||
50 | " use default settings.\n" | ||
51 | " --foreground Run the daemon in foreground. The daemon won't fork\n" | ||
52 | " (detach from the terminal) and won't use the PID file.\n" | ||
53 | " --help Print this help message.\n" | ||
54 | " --log-backend=BACKEND Specify which logging backend to use.\n" | ||
55 | " Valid BACKEND values (case sensetive):\n" | ||
56 | " syslog Writes log messages to syslog.\n" | ||
57 | " Default option when no --log-backend is\n" | ||
58 | " specified.\n" | ||
59 | " stdout Writes log messages to stdout/stderr.\n" | ||
60 | " --version Print version information.\n"); | ||
61 | } | ||
62 | |||
63 | void handle_command_line_arguments(int argc, char *argv[], char **cfg_file_path, LOG_BACKEND *log_backend, bool *run_in_foreground) | ||
64 | { | ||
65 | if (argc < 2) { | ||
66 | write_log(LOG_LEVEL_ERROR, "Error: No arguments provided.\n\n"); | ||
67 | print_help(); | ||
68 | exit(1); | ||
69 | } | ||
70 | |||
71 | opterr = 0; | ||
72 | |||
73 | static struct option long_options[] = { | ||
74 | {"config", required_argument, 0, 'c'}, // required option | ||
75 | {"foreground", no_argument, 0, 'f'}, | ||
76 | {"help", no_argument, 0, 'h'}, | ||
77 | {"log-backend", required_argument, 0, 'l'}, // optional, defaults to syslog | ||
78 | {"version", no_argument, 0, 'v'}, | ||
79 | {0, 0, 0, 0 } | ||
80 | }; | ||
81 | |||
82 | bool cfg_file_path_set = false; | ||
83 | bool log_backend_set = false; | ||
84 | |||
85 | *run_in_foreground = false; | ||
86 | |||
87 | int opt; | ||
88 | |||
89 | while ((opt = getopt_long(argc, argv, ":", long_options, NULL)) != -1) { | ||
90 | |||
91 | switch (opt) { | ||
92 | |||
93 | case 'c': | ||
94 | *cfg_file_path = optarg; | ||
95 | cfg_file_path_set = true; | ||
96 | break; | ||
97 | |||
98 | case 'f': | ||
99 | *run_in_foreground = true; | ||
100 | break; | ||
101 | |||
102 | case 'h': | ||
103 | print_help(); | ||
104 | exit(0); | ||
105 | |||
106 | case 'l': | ||
107 | if (strcmp(optarg, "syslog") == 0) { | ||
108 | *log_backend = LOG_BACKEND_SYSLOG; | ||
109 | log_backend_set = true; | ||
110 | } else if (strcmp(optarg, "stdout") == 0) { | ||
111 | *log_backend = LOG_BACKEND_STDOUT; | ||
112 | log_backend_set = true; | ||
113 | } else { | ||
114 | write_log(LOG_LEVEL_ERROR, "Error: Invalid BACKEND value for --log-backend option passed: %s\n\n", optarg); | ||
115 | print_help(); | ||
116 | exit(1); | ||
117 | } | ||
118 | break; | ||
119 | |||
120 | case 'v': | ||
121 | write_log(LOG_LEVEL_INFO, "Version: %lu\n", DAEMON_VERSION_NUMBER); | ||
122 | exit(0); | ||
123 | |||
124 | case '?': | ||
125 | write_log(LOG_LEVEL_ERROR, "Error: Unrecognized option %s\n\n", argv[optind-1]); | ||
126 | print_help(); | ||
127 | exit(1); | ||
128 | |||
129 | case ':': | ||
130 | write_log(LOG_LEVEL_ERROR, "Error: No argument provided for option %s\n\n", argv[optind-1]); | ||
131 | print_help(); | ||
132 | exit(1); | ||
133 | } | ||
134 | } | ||
135 | |||
136 | if (!log_backend_set) { | ||
137 | *log_backend = LOG_BACKEND_SYSLOG; | ||
138 | } | ||
139 | |||
140 | if (!cfg_file_path_set) { | ||
141 | write_log(LOG_LEVEL_ERROR, "Error: The required --config option wasn't specified\n\n"); | ||
142 | print_help(); | ||
143 | exit(1); | ||
144 | } | ||
145 | } | ||
diff --git a/other/bootstrap_daemon/src/command_line_arguments.h b/other/bootstrap_daemon/src/command_line_arguments.h new file mode 100644 index 00000000..c73cd15e --- /dev/null +++ b/other/bootstrap_daemon/src/command_line_arguments.h | |||
@@ -0,0 +1,42 @@ | |||
1 | /* command_line_arguments.h | ||
2 | * | ||
3 | * Tox DHT bootstrap daemon. | ||
4 | * Command line argument handling. | ||
5 | * | ||
6 | * Copyright (C) 2015-2016 Tox project All Rights Reserved. | ||
7 | * | ||
8 | * This file is part of Tox. | ||
9 | * | ||
10 | * Tox is free software: you can redistribute it and/or modify | ||
11 | * it under the terms of the GNU General Public License as published by | ||
12 | * the Free Software Foundation, either version 3 of the License, or | ||
13 | * (at your option) any later version. | ||
14 | * | ||
15 | * Tox is distributed in the hope that it will be useful, | ||
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
18 | * GNU General Public License for more details. | ||
19 | * | ||
20 | * You should have received a copy of the GNU General Public License | ||
21 | * along with Tox. If not, see <http://www.gnu.org/licenses/>. | ||
22 | * | ||
23 | */ | ||
24 | |||
25 | #ifndef COMMAND_LINE_ARGUMENTS_H | ||
26 | #define COMMAND_LINE_ARGUMENTS_H | ||
27 | |||
28 | #include "log.h" | ||
29 | |||
30 | /** | ||
31 | * Handles command line arguments, setting cfg_file_path and log_backend. | ||
32 | * Terminates the application if incorrect arguments are specified. | ||
33 | * | ||
34 | * @param argc Argc passed into main(). | ||
35 | * @param argv Argv passed into main(). | ||
36 | * @param cfg_file_path Sets to the provided by the user config file path. | ||
37 | * @param log_backend Sets to the provided by the user log backend option. | ||
38 | * @param run_in_foreground Sets to the provided by the user foreground option. | ||
39 | */ | ||
40 | void handle_command_line_arguments(int argc, char *argv[], char **cfg_file_path, LOG_BACKEND *log_backend, bool *run_in_foreground); | ||
41 | |||
42 | #endif // COMMAND_LINE_ARGUMENTS_H | ||
diff --git a/other/bootstrap_daemon/src/config.c b/other/bootstrap_daemon/src/config.c new file mode 100644 index 00000000..861a3803 --- /dev/null +++ b/other/bootstrap_daemon/src/config.c | |||
@@ -0,0 +1,426 @@ | |||
1 | /* config.c | ||
2 | * | ||
3 | * Tox DHT bootstrap daemon. | ||
4 | * Functionality related to dealing with the config file. | ||
5 | * | ||
6 | * Copyright (C) 2014-2016 Tox project All Rights Reserved. | ||
7 | * | ||
8 | * This file is part of Tox. | ||
9 | * | ||
10 | * Tox is free software: you can redistribute it and/or modify | ||
11 | * it under the terms of the GNU General Public License as published by | ||
12 | * the Free Software Foundation, either version 3 of the License, or | ||
13 | * (at your option) any later version. | ||
14 | * | ||
15 | * Tox is distributed in the hope that it will be useful, | ||
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
18 | * GNU General Public License for more details. | ||
19 | * | ||
20 | * You should have received a copy of the GNU General Public License | ||
21 | * along with Tox. If not, see <http://www.gnu.org/licenses/>. | ||
22 | * | ||
23 | */ | ||
24 | |||
25 | #include "config.h" | ||
26 | |||
27 | #include "config_defaults.h" | ||
28 | #include "log.h" | ||
29 | |||
30 | #include <stdlib.h> | ||
31 | #include <string.h> | ||
32 | #include <string.h> | ||
33 | |||
34 | #include <libconfig.h> | ||
35 | |||
36 | #include "../../bootstrap_node_packets.h" | ||
37 | |||
38 | /** | ||
39 | * Parses tcp relay ports from `cfg` and puts them into `tcp_relay_ports` array. | ||
40 | * | ||
41 | * Supposed to be called from get_general_config only. | ||
42 | * | ||
43 | * Important: iff `tcp_relay_port_count` > 0, then you are responsible for freeing `tcp_relay_ports`. | ||
44 | */ | ||
45 | void parse_tcp_relay_ports_config(config_t *cfg, uint16_t **tcp_relay_ports, int *tcp_relay_port_count) | ||
46 | { | ||
47 | const char *NAME_TCP_RELAY_PORTS = "tcp_relay_ports"; | ||
48 | |||
49 | *tcp_relay_port_count = 0; | ||
50 | |||
51 | config_setting_t *ports_array = config_lookup(cfg, NAME_TCP_RELAY_PORTS); | ||
52 | |||
53 | if (ports_array == NULL) { | ||
54 | write_log(LOG_LEVEL_WARNING, "No '%s' setting in the configuration file.\n", NAME_TCP_RELAY_PORTS); | ||
55 | write_log(LOG_LEVEL_WARNING, "Using default '%s':\n", NAME_TCP_RELAY_PORTS); | ||
56 | |||
57 | uint16_t default_ports[DEFAULT_TCP_RELAY_PORTS_COUNT] = {DEFAULT_TCP_RELAY_PORTS}; | ||
58 | |||
59 | int i; | ||
60 | |||
61 | for (i = 0; i < DEFAULT_TCP_RELAY_PORTS_COUNT; i ++) { | ||
62 | write_log(LOG_LEVEL_INFO, "Port #%d: %u\n", i, default_ports[i]); | ||
63 | } | ||
64 | |||
65 | // similar procedure to the one of reading config file below | ||
66 | *tcp_relay_ports = malloc(DEFAULT_TCP_RELAY_PORTS_COUNT * sizeof(uint16_t)); | ||
67 | |||
68 | for (i = 0; i < DEFAULT_TCP_RELAY_PORTS_COUNT; i ++) { | ||
69 | |||
70 | (*tcp_relay_ports)[*tcp_relay_port_count] = default_ports[i]; | ||
71 | |||
72 | if ((*tcp_relay_ports)[*tcp_relay_port_count] < MIN_ALLOWED_PORT | ||
73 | || (*tcp_relay_ports)[*tcp_relay_port_count] > MAX_ALLOWED_PORT) { | ||
74 | write_log(LOG_LEVEL_WARNING, "Port #%d: Invalid port: %u, should be in [%d, %d]. Skipping.\n", i, | ||
75 | (*tcp_relay_ports)[*tcp_relay_port_count], MIN_ALLOWED_PORT, MAX_ALLOWED_PORT); | ||
76 | continue; | ||
77 | } | ||
78 | |||
79 | (*tcp_relay_port_count) ++; | ||
80 | } | ||
81 | |||
82 | // the loop above skips invalid ports, so we adjust the allocated memory size | ||
83 | if ((*tcp_relay_port_count) > 0) { | ||
84 | *tcp_relay_ports = realloc(*tcp_relay_ports, (*tcp_relay_port_count) * sizeof(uint16_t)); | ||
85 | } else { | ||
86 | free(*tcp_relay_ports); | ||
87 | *tcp_relay_ports = NULL; | ||
88 | } | ||
89 | |||
90 | return; | ||
91 | } | ||
92 | |||
93 | if (config_setting_is_array(ports_array) == CONFIG_FALSE) { | ||
94 | write_log(LOG_LEVEL_ERROR, "'%s' setting should be an array. Array syntax: 'setting = [value1, value2, ...]'.\n", | ||
95 | NAME_TCP_RELAY_PORTS); | ||
96 | return; | ||
97 | } | ||
98 | |||
99 | int config_port_count = config_setting_length(ports_array); | ||
100 | |||
101 | if (config_port_count == 0) { | ||
102 | write_log(LOG_LEVEL_ERROR, "'%s' is empty.\n", NAME_TCP_RELAY_PORTS); | ||
103 | return; | ||
104 | } | ||
105 | |||
106 | *tcp_relay_ports = malloc(config_port_count * sizeof(uint16_t)); | ||
107 | |||
108 | int i; | ||
109 | |||
110 | for (i = 0; i < config_port_count; i ++) { | ||
111 | config_setting_t *elem = config_setting_get_elem(ports_array, i); | ||
112 | |||
113 | if (elem == NULL) { | ||
114 | // it's NULL if `ports_array` is not an array (we have that check earlier) or if `i` is out of range, which should not be | ||
115 | write_log(LOG_LEVEL_WARNING, "Port #%d: Something went wrong while parsing the port. Stopping reading ports.\n", i); | ||
116 | break; | ||
117 | } | ||
118 | |||
119 | if (config_setting_is_number(elem) == CONFIG_FALSE) { | ||
120 | write_log(LOG_LEVEL_WARNING, "Port #%d: Not a number. Skipping.\n", i); | ||
121 | continue; | ||
122 | } | ||
123 | |||
124 | (*tcp_relay_ports)[*tcp_relay_port_count] = config_setting_get_int(elem); | ||
125 | |||
126 | if ((*tcp_relay_ports)[*tcp_relay_port_count] < MIN_ALLOWED_PORT | ||
127 | || (*tcp_relay_ports)[*tcp_relay_port_count] > MAX_ALLOWED_PORT) { | ||
128 | write_log(LOG_LEVEL_WARNING, "Port #%d: Invalid port: %u, should be in [%d, %d]. Skipping.\n", i, | ||
129 | (*tcp_relay_ports)[*tcp_relay_port_count], MIN_ALLOWED_PORT, MAX_ALLOWED_PORT); | ||
130 | continue; | ||
131 | } | ||
132 | |||
133 | (*tcp_relay_port_count) ++; | ||
134 | } | ||
135 | |||
136 | // the loop above skips invalid ports, so we adjust the allocated memory size | ||
137 | if ((*tcp_relay_port_count) > 0) { | ||
138 | *tcp_relay_ports = realloc(*tcp_relay_ports, (*tcp_relay_port_count) * sizeof(uint16_t)); | ||
139 | } else { | ||
140 | free(*tcp_relay_ports); | ||
141 | *tcp_relay_ports = NULL; | ||
142 | } | ||
143 | } | ||
144 | |||
145 | int get_general_config(const char *cfg_file_path, char **pid_file_path, char **keys_file_path, int *port, int *enable_ipv6, | ||
146 | int *enable_ipv4_fallback, int *enable_lan_discovery, int *enable_tcp_relay, uint16_t **tcp_relay_ports, | ||
147 | int *tcp_relay_port_count, int *enable_motd, char **motd) | ||
148 | { | ||
149 | config_t cfg; | ||
150 | |||
151 | const char *NAME_PORT = "port"; | ||
152 | const char *NAME_PID_FILE_PATH = "pid_file_path"; | ||
153 | const char *NAME_KEYS_FILE_PATH = "keys_file_path"; | ||
154 | const char *NAME_ENABLE_IPV6 = "enable_ipv6"; | ||
155 | const char *NAME_ENABLE_IPV4_FALLBACK = "enable_ipv4_fallback"; | ||
156 | const char *NAME_ENABLE_LAN_DISCOVERY = "enable_lan_discovery"; | ||
157 | const char *NAME_ENABLE_TCP_RELAY = "enable_tcp_relay"; | ||
158 | const char *NAME_ENABLE_MOTD = "enable_motd"; | ||
159 | const char *NAME_MOTD = "motd"; | ||
160 | |||
161 | config_init(&cfg); | ||
162 | |||
163 | // Read the file. If there is an error, report it and exit. | ||
164 | if (config_read_file(&cfg, cfg_file_path) == CONFIG_FALSE) { | ||
165 | write_log(LOG_LEVEL_ERROR, "%s:%d - %s\n", config_error_file(&cfg), config_error_line(&cfg), config_error_text(&cfg)); | ||
166 | config_destroy(&cfg); | ||
167 | return 0; | ||
168 | } | ||
169 | |||
170 | // Get port | ||
171 | if (config_lookup_int(&cfg, NAME_PORT, port) == CONFIG_FALSE) { | ||
172 | write_log(LOG_LEVEL_WARNING, "No '%s' setting in configuration file.\n", NAME_PORT); | ||
173 | write_log(LOG_LEVEL_WARNING, "Using default '%s': %d\n", NAME_PORT, DEFAULT_PORT); | ||
174 | *port = DEFAULT_PORT; | ||
175 | } | ||
176 | |||
177 | // Get PID file location | ||
178 | const char *tmp_pid_file; | ||
179 | |||
180 | if (config_lookup_string(&cfg, NAME_PID_FILE_PATH, &tmp_pid_file) == CONFIG_FALSE) { | ||
181 | write_log(LOG_LEVEL_WARNING, "No '%s' setting in configuration file.\n", NAME_PID_FILE_PATH); | ||
182 | write_log(LOG_LEVEL_WARNING, "Using default '%s': %s\n", NAME_PID_FILE_PATH, DEFAULT_PID_FILE_PATH); | ||
183 | tmp_pid_file = DEFAULT_PID_FILE_PATH; | ||
184 | } | ||
185 | |||
186 | *pid_file_path = malloc(strlen(tmp_pid_file) + 1); | ||
187 | strcpy(*pid_file_path, tmp_pid_file); | ||
188 | |||
189 | // Get keys file location | ||
190 | const char *tmp_keys_file; | ||
191 | |||
192 | if (config_lookup_string(&cfg, NAME_KEYS_FILE_PATH, &tmp_keys_file) == CONFIG_FALSE) { | ||
193 | write_log(LOG_LEVEL_WARNING, "No '%s' setting in configuration file.\n", NAME_KEYS_FILE_PATH); | ||
194 | write_log(LOG_LEVEL_WARNING, "Using default '%s': %s\n", NAME_KEYS_FILE_PATH, DEFAULT_KEYS_FILE_PATH); | ||
195 | tmp_keys_file = DEFAULT_KEYS_FILE_PATH; | ||
196 | } | ||
197 | |||
198 | *keys_file_path = malloc(strlen(tmp_keys_file) + 1); | ||
199 | strcpy(*keys_file_path, tmp_keys_file); | ||
200 | |||
201 | // Get IPv6 option | ||
202 | if (config_lookup_bool(&cfg, NAME_ENABLE_IPV6, enable_ipv6) == CONFIG_FALSE) { | ||
203 | write_log(LOG_LEVEL_WARNING, "No '%s' setting in configuration file.\n", NAME_ENABLE_IPV6); | ||
204 | write_log(LOG_LEVEL_WARNING, "Using default '%s': %s\n", NAME_ENABLE_IPV6, DEFAULT_ENABLE_IPV6 ? "true" : "false"); | ||
205 | *enable_ipv6 = DEFAULT_ENABLE_IPV6; | ||
206 | } | ||
207 | |||
208 | // Get IPv4 fallback option | ||
209 | if (config_lookup_bool(&cfg, NAME_ENABLE_IPV4_FALLBACK, enable_ipv4_fallback) == CONFIG_FALSE) { | ||
210 | write_log(LOG_LEVEL_WARNING, "No '%s' setting in configuration file.\n", NAME_ENABLE_IPV4_FALLBACK); | ||
211 | write_log(LOG_LEVEL_WARNING, "Using default '%s': %s\n", NAME_ENABLE_IPV4_FALLBACK, | ||
212 | DEFAULT_ENABLE_IPV4_FALLBACK ? "true" : "false"); | ||
213 | *enable_ipv4_fallback = DEFAULT_ENABLE_IPV4_FALLBACK; | ||
214 | } | ||
215 | |||
216 | // Get LAN discovery option | ||
217 | if (config_lookup_bool(&cfg, NAME_ENABLE_LAN_DISCOVERY, enable_lan_discovery) == CONFIG_FALSE) { | ||
218 | write_log(LOG_LEVEL_WARNING, "No '%s' setting in configuration file.\n", NAME_ENABLE_LAN_DISCOVERY); | ||
219 | write_log(LOG_LEVEL_WARNING, "Using default '%s': %s\n", NAME_ENABLE_LAN_DISCOVERY, | ||
220 | DEFAULT_ENABLE_LAN_DISCOVERY ? "true" : "false"); | ||
221 | *enable_lan_discovery = DEFAULT_ENABLE_LAN_DISCOVERY; | ||
222 | } | ||
223 | |||
224 | // Get TCP relay option | ||
225 | if (config_lookup_bool(&cfg, NAME_ENABLE_TCP_RELAY, enable_tcp_relay) == CONFIG_FALSE) { | ||
226 | write_log(LOG_LEVEL_WARNING, "No '%s' setting in configuration file.\n", NAME_ENABLE_TCP_RELAY); | ||
227 | write_log(LOG_LEVEL_WARNING, "Using default '%s': %s\n", NAME_ENABLE_TCP_RELAY, | ||
228 | DEFAULT_ENABLE_TCP_RELAY ? "true" : "false"); | ||
229 | *enable_tcp_relay = DEFAULT_ENABLE_TCP_RELAY; | ||
230 | } | ||
231 | |||
232 | if (*enable_tcp_relay) { | ||
233 | parse_tcp_relay_ports_config(&cfg, tcp_relay_ports, tcp_relay_port_count); | ||
234 | } else { | ||
235 | *tcp_relay_port_count = 0; | ||
236 | } | ||
237 | |||
238 | // Get MOTD option | ||
239 | if (config_lookup_bool(&cfg, NAME_ENABLE_MOTD, enable_motd) == CONFIG_FALSE) { | ||
240 | write_log(LOG_LEVEL_WARNING, "No '%s' setting in configuration file.\n", NAME_ENABLE_MOTD); | ||
241 | write_log(LOG_LEVEL_WARNING, "Using default '%s': %s\n", NAME_ENABLE_MOTD, | ||
242 | DEFAULT_ENABLE_MOTD ? "true" : "false"); | ||
243 | *enable_motd = DEFAULT_ENABLE_MOTD; | ||
244 | } | ||
245 | |||
246 | if (*enable_motd) { | ||
247 | // Get MOTD | ||
248 | const char *tmp_motd; | ||
249 | |||
250 | if (config_lookup_string(&cfg, NAME_MOTD, &tmp_motd) == CONFIG_FALSE) { | ||
251 | write_log(LOG_LEVEL_WARNING, "No '%s' setting in configuration file.\n", NAME_MOTD); | ||
252 | write_log(LOG_LEVEL_WARNING, "Using default '%s': %s\n", NAME_MOTD, DEFAULT_MOTD); | ||
253 | tmp_motd = DEFAULT_MOTD; | ||
254 | } | ||
255 | |||
256 | size_t tmp_motd_length = strlen(tmp_motd) + 1; | ||
257 | size_t motd_length = tmp_motd_length > MAX_MOTD_LENGTH ? MAX_MOTD_LENGTH : tmp_motd_length; | ||
258 | *motd = malloc(motd_length); | ||
259 | strncpy(*motd, tmp_motd, motd_length); | ||
260 | (*motd)[motd_length - 1] = '\0'; | ||
261 | } | ||
262 | |||
263 | config_destroy(&cfg); | ||
264 | |||
265 | write_log(LOG_LEVEL_INFO, "Successfully read:\n"); | ||
266 | write_log(LOG_LEVEL_INFO, "'%s': %s\n", NAME_PID_FILE_PATH, *pid_file_path); | ||
267 | write_log(LOG_LEVEL_INFO, "'%s': %s\n", NAME_KEYS_FILE_PATH, *keys_file_path); | ||
268 | write_log(LOG_LEVEL_INFO, "'%s': %d\n", NAME_PORT, *port); | ||
269 | write_log(LOG_LEVEL_INFO, "'%s': %s\n", NAME_ENABLE_IPV6, *enable_ipv6 ? "true" : "false"); | ||
270 | write_log(LOG_LEVEL_INFO, "'%s': %s\n", NAME_ENABLE_IPV4_FALLBACK, *enable_ipv4_fallback ? "true" : "false"); | ||
271 | write_log(LOG_LEVEL_INFO, "'%s': %s\n", NAME_ENABLE_LAN_DISCOVERY, *enable_lan_discovery ? "true" : "false"); | ||
272 | |||
273 | write_log(LOG_LEVEL_INFO, "'%s': %s\n", NAME_ENABLE_TCP_RELAY, *enable_tcp_relay ? "true" : "false"); | ||
274 | |||
275 | // show info about tcp ports only if tcp relay is enabled | ||
276 | if (*enable_tcp_relay) { | ||
277 | if (*tcp_relay_port_count == 0) { | ||
278 | write_log(LOG_LEVEL_ERROR, "No TCP ports could be read.\n"); | ||
279 | } else { | ||
280 | write_log(LOG_LEVEL_INFO, "Read %d TCP ports:\n", *tcp_relay_port_count); | ||
281 | int i; | ||
282 | |||
283 | for (i = 0; i < *tcp_relay_port_count; i ++) { | ||
284 | write_log(LOG_LEVEL_INFO, "Port #%d: %u\n", i, (*tcp_relay_ports)[i]); | ||
285 | } | ||
286 | } | ||
287 | } | ||
288 | |||
289 | write_log(LOG_LEVEL_INFO, "'%s': %s\n", NAME_ENABLE_MOTD, *enable_motd ? "true" : "false"); | ||
290 | |||
291 | if (*enable_motd) { | ||
292 | write_log(LOG_LEVEL_INFO, "'%s': %s\n", NAME_MOTD, *motd); | ||
293 | } | ||
294 | |||
295 | return 1; | ||
296 | } | ||
297 | |||
298 | /** | ||
299 | * | ||
300 | * Converts a hex string with even number of characters into binary. | ||
301 | * | ||
302 | * Important: You are responsible for freeing the return value. | ||
303 | * | ||
304 | * @return binary on success, | ||
305 | * NULL on failure. | ||
306 | */ | ||
307 | uint8_t *hex_string_to_bin(char *hex_string) | ||
308 | { | ||
309 | if (strlen(hex_string) % 2 != 0) { | ||
310 | return NULL; | ||
311 | } | ||
312 | |||
313 | size_t len = strlen(hex_string) / 2; | ||
314 | uint8_t *ret = malloc(len); | ||
315 | |||
316 | char *pos = hex_string; | ||
317 | size_t i; | ||
318 | for (i = 0; i < len; ++i, pos += 2) { | ||
319 | sscanf(pos, "%2hhx", &ret[i]); | ||
320 | } | ||
321 | |||
322 | return ret; | ||
323 | } | ||
324 | |||
325 | int bootstrap_from_config(const char *cfg_file_path, DHT *dht, int enable_ipv6) | ||
326 | { | ||
327 | const char *NAME_BOOTSTRAP_NODES = "bootstrap_nodes"; | ||
328 | |||
329 | const char *NAME_PUBLIC_KEY = "public_key"; | ||
330 | const char *NAME_PORT = "port"; | ||
331 | const char *NAME_ADDRESS = "address"; | ||
332 | |||
333 | config_t cfg; | ||
334 | |||
335 | config_init(&cfg); | ||
336 | |||
337 | if (config_read_file(&cfg, cfg_file_path) == CONFIG_FALSE) { | ||
338 | write_log(LOG_LEVEL_ERROR, "%s:%d - %s\n", config_error_file(&cfg), config_error_line(&cfg), config_error_text(&cfg)); | ||
339 | config_destroy(&cfg); | ||
340 | return 0; | ||
341 | } | ||
342 | |||
343 | config_setting_t *node_list = config_lookup(&cfg, NAME_BOOTSTRAP_NODES); | ||
344 | |||
345 | if (node_list == NULL) { | ||
346 | write_log(LOG_LEVEL_WARNING, "No '%s' setting in the configuration file. Skipping bootstrapping.\n", NAME_BOOTSTRAP_NODES); | ||
347 | config_destroy(&cfg); | ||
348 | return 1; | ||
349 | } | ||
350 | |||
351 | if (config_setting_length(node_list) == 0) { | ||
352 | write_log(LOG_LEVEL_WARNING, "No bootstrap nodes found. Skipping bootstrapping.\n"); | ||
353 | config_destroy(&cfg); | ||
354 | return 1; | ||
355 | } | ||
356 | |||
357 | int bs_port; | ||
358 | const char *bs_address; | ||
359 | const char *bs_public_key; | ||
360 | |||
361 | config_setting_t *node; | ||
362 | |||
363 | int i = 0; | ||
364 | |||
365 | while (config_setting_length(node_list)) { | ||
366 | |||
367 | node = config_setting_get_elem(node_list, 0); | ||
368 | |||
369 | if (node == NULL) { | ||
370 | config_destroy(&cfg); | ||
371 | return 0; | ||
372 | } | ||
373 | |||
374 | // Check that all settings are present | ||
375 | if (config_setting_lookup_string(node, NAME_PUBLIC_KEY, &bs_public_key) == CONFIG_FALSE) { | ||
376 | write_log(LOG_LEVEL_WARNING, "Bootstrap node #%d: Couldn't find '%s' setting. Skipping the node.\n", i, NAME_PUBLIC_KEY); | ||
377 | goto next; | ||
378 | } | ||
379 | |||
380 | if (config_setting_lookup_int(node, NAME_PORT, &bs_port) == CONFIG_FALSE) { | ||
381 | write_log(LOG_LEVEL_WARNING, "Bootstrap node #%d: Couldn't find '%s' setting. Skipping the node.\n", i, NAME_PORT); | ||
382 | goto next; | ||
383 | } | ||
384 | |||
385 | if (config_setting_lookup_string(node, NAME_ADDRESS, &bs_address) == CONFIG_FALSE) { | ||
386 | write_log(LOG_LEVEL_WARNING, "Bootstrap node #%d: Couldn't find '%s' setting. Skipping the node.\n", i, NAME_ADDRESS); | ||
387 | goto next; | ||
388 | } | ||
389 | |||
390 | // Process settings | ||
391 | if (strlen(bs_public_key) != crypto_box_PUBLICKEYBYTES * 2) { | ||
392 | write_log(LOG_LEVEL_WARNING, "Bootstrap node #%d: Invalid '%s': %s. Skipping the node.\n", i, NAME_PUBLIC_KEY, | ||
393 | bs_public_key); | ||
394 | goto next; | ||
395 | } | ||
396 | |||
397 | if (bs_port < MIN_ALLOWED_PORT || bs_port > MAX_ALLOWED_PORT) { | ||
398 | write_log(LOG_LEVEL_WARNING, "Bootstrap node #%d: Invalid '%s': %d, should be in [%d, %d]. Skipping the node.\n", i, NAME_PORT, | ||
399 | bs_port, MIN_ALLOWED_PORT, MAX_ALLOWED_PORT); | ||
400 | goto next; | ||
401 | } | ||
402 | |||
403 | uint8_t *bs_public_key_bin = hex_string_to_bin((char *)bs_public_key); | ||
404 | const int address_resolved = DHT_bootstrap_from_address(dht, bs_address, enable_ipv6, htons(bs_port), | ||
405 | bs_public_key_bin); | ||
406 | free(bs_public_key_bin); | ||
407 | |||
408 | if (!address_resolved) { | ||
409 | write_log(LOG_LEVEL_WARNING, "Bootstrap node #%d: Invalid '%s': %s. Skipping the node.\n", i, NAME_ADDRESS, bs_address); | ||
410 | goto next; | ||
411 | } | ||
412 | |||
413 | write_log(LOG_LEVEL_INFO, "Successfully added bootstrap node #%d: %s:%d %s\n", i, bs_address, bs_port, bs_public_key); | ||
414 | |||
415 | next: | ||
416 | // config_setting_lookup_string() allocates string inside and doesn't allow us to free it direcly | ||
417 | // though it's freed when the element is removed, so we free it right away in order to keep memory | ||
418 | // consumption minimal | ||
419 | config_setting_remove_elem(node_list, 0); | ||
420 | i++; | ||
421 | } | ||
422 | |||
423 | config_destroy(&cfg); | ||
424 | |||
425 | return 1; | ||
426 | } | ||
diff --git a/other/bootstrap_daemon/src/config.h b/other/bootstrap_daemon/src/config.h new file mode 100644 index 00000000..13cf929a --- /dev/null +++ b/other/bootstrap_daemon/src/config.h | |||
@@ -0,0 +1,52 @@ | |||
1 | /* config.h | ||
2 | * | ||
3 | * Tox DHT bootstrap daemon. | ||
4 | * Functionality related to dealing with the config file. | ||
5 | * | ||
6 | * Copyright (C) 2014-2016 Tox project All Rights Reserved. | ||
7 | * | ||
8 | * This file is part of Tox. | ||
9 | * | ||
10 | * Tox is free software: you can redistribute it and/or modify | ||
11 | * it under the terms of the GNU General Public License as published by | ||
12 | * the Free Software Foundation, either version 3 of the License, or | ||
13 | * (at your option) any later version. | ||
14 | * | ||
15 | * Tox is distributed in the hope that it will be useful, | ||
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
18 | * GNU General Public License for more details. | ||
19 | * | ||
20 | * You should have received a copy of the GNU General Public License | ||
21 | * along with Tox. If not, see <http://www.gnu.org/licenses/>. | ||
22 | * | ||
23 | */ | ||
24 | |||
25 | #ifndef CONFIG_H | ||
26 | #define CONFIG_H | ||
27 | |||
28 | #include "../../../toxcore/DHT.h" | ||
29 | |||
30 | /** | ||
31 | * Gets general config options from the config file. | ||
32 | * | ||
33 | * Important: You are responsible for freeing `pid_file_path` and `keys_file_path` | ||
34 | * also, iff `tcp_relay_ports_count` > 0, then you are responsible for freeing `tcp_relay_ports` | ||
35 | * and also `motd` iff `enable_motd` is set. | ||
36 | * | ||
37 | * @return 1 on success, | ||
38 | * 0 on failure, doesn't modify any data pointed by arguments. | ||
39 | */ | ||
40 | int get_general_config(const char *cfg_file_path, char **pid_file_path, char **keys_file_path, int *port, int *enable_ipv6, | ||
41 | int *enable_ipv4_fallback, int *enable_lan_discovery, int *enable_tcp_relay, uint16_t **tcp_relay_ports, | ||
42 | int *tcp_relay_port_count, int *enable_motd, char **motd); | ||
43 | |||
44 | /** | ||
45 | * Bootstraps off nodes listed in the config file. | ||
46 | * | ||
47 | * @return 1 on success, some or no bootstrap nodes were added | ||
48 | * 0 on failure, a error accured while parsing config file. | ||
49 | */ | ||
50 | int bootstrap_from_config(const char *cfg_file_path, DHT *dht, int enable_ipv6); | ||
51 | |||
52 | #endif // CONFIG_H | ||
diff --git a/other/bootstrap_daemon/src/config_defaults.h b/other/bootstrap_daemon/src/config_defaults.h new file mode 100644 index 00000000..17bffd3a --- /dev/null +++ b/other/bootstrap_daemon/src/config_defaults.h | |||
@@ -0,0 +1,42 @@ | |||
1 | /* config_defaults.h | ||
2 | * | ||
3 | * Tox DHT bootstrap daemon. | ||
4 | * Default config options for when they are missing in the config file. | ||
5 | * | ||
6 | * Copyright (C) 2014-2016 Tox project All Rights Reserved. | ||
7 | * | ||
8 | * This file is part of Tox. | ||
9 | * | ||
10 | * Tox is free software: you can redistribute it and/or modify | ||
11 | * it under the terms of the GNU General Public License as published by | ||
12 | * the Free Software Foundation, either version 3 of the License, or | ||
13 | * (at your option) any later version. | ||
14 | * | ||
15 | * Tox is distributed in the hope that it will be useful, | ||
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
18 | * GNU General Public License for more details. | ||
19 | * | ||
20 | * You should have received a copy of the GNU General Public License | ||
21 | * along with Tox. If not, see <http://www.gnu.org/licenses/>. | ||
22 | * | ||
23 | */ | ||
24 | |||
25 | #ifndef CONFIG_DEFAULTS_H | ||
26 | #define CONFIG_DEFAULTS_H | ||
27 | |||
28 | #include "global.h" | ||
29 | |||
30 | #define DEFAULT_PID_FILE_PATH "tox-bootstrapd.pid" | ||
31 | #define DEFAULT_KEYS_FILE_PATH "tox-bootstrapd.keys" | ||
32 | #define DEFAULT_PORT 33445 | ||
33 | #define DEFAULT_ENABLE_IPV6 1 // 1 - true, 0 - false | ||
34 | #define DEFAULT_ENABLE_IPV4_FALLBACK 1 // 1 - true, 0 - false | ||
35 | #define DEFAULT_ENABLE_LAN_DISCOVERY 1 // 1 - true, 0 - false | ||
36 | #define DEFAULT_ENABLE_TCP_RELAY 1 // 1 - true, 0 - false | ||
37 | #define DEFAULT_TCP_RELAY_PORTS 443, 3389, 33445 // comma-separated list of ports. make sure to adjust DEFAULT_TCP_RELAY_PORTS_COUNT accordingly | ||
38 | #define DEFAULT_TCP_RELAY_PORTS_COUNT 3 | ||
39 | #define DEFAULT_ENABLE_MOTD 1 // 1 - true, 0 - false | ||
40 | #define DEFAULT_MOTD DAEMON_NAME | ||
41 | |||
42 | #endif // CONFIG_DEFAULTS_H | ||
diff --git a/other/bootstrap_daemon/src/global.h b/other/bootstrap_daemon/src/global.h new file mode 100644 index 00000000..9ae3ec45 --- /dev/null +++ b/other/bootstrap_daemon/src/global.h | |||
@@ -0,0 +1,34 @@ | |||
1 | /* global.h | ||
2 | * | ||
3 | * Tox DHT bootstrap daemon. | ||
4 | * Globally used defines. | ||
5 | * | ||
6 | * Copyright (C) 2014-2016 Tox project All Rights Reserved. | ||
7 | * | ||
8 | * This file is part of Tox. | ||
9 | * | ||
10 | * Tox is free software: you can redistribute it and/or modify | ||
11 | * it under the terms of the GNU General Public License as published by | ||
12 | * the Free Software Foundation, either version 3 of the License, or | ||
13 | * (at your option) any later version. | ||
14 | * | ||
15 | * Tox is distributed in the hope that it will be useful, | ||
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
18 | * GNU General Public License for more details. | ||
19 | * | ||
20 | * You should have received a copy of the GNU General Public License | ||
21 | * along with Tox. If not, see <http://www.gnu.org/licenses/>. | ||
22 | * | ||
23 | */ | ||
24 | |||
25 | #ifndef GLOBAL_H | ||
26 | #define GLOBAL_H | ||
27 | |||
28 | #define DAEMON_NAME "tox-bootstrapd" | ||
29 | #define DAEMON_VERSION_NUMBER 2016010100UL // yyyymmmddvv format: yyyy year, mm month, dd day, vv version change count for that day | ||
30 | |||
31 | #define MIN_ALLOWED_PORT 1 | ||
32 | #define MAX_ALLOWED_PORT 65535 | ||
33 | |||
34 | #endif // GLOBAL_H | ||
diff --git a/other/bootstrap_daemon/src/log.c b/other/bootstrap_daemon/src/log.c new file mode 100644 index 00000000..d441b98e --- /dev/null +++ b/other/bootstrap_daemon/src/log.c | |||
@@ -0,0 +1,117 @@ | |||
1 | /* log.c | ||
2 | * | ||
3 | * Tox DHT bootstrap daemon. | ||
4 | * Logging utility with support of multipel logging backends. | ||
5 | * | ||
6 | * Copyright (C) 2015-2016 Tox project All Rights Reserved. | ||
7 | * | ||
8 | * This file is part of Tox. | ||
9 | * | ||
10 | * Tox is free software: you can redistribute it and/or modify | ||
11 | * it under the terms of the GNU General Public License as published by | ||
12 | * the Free Software Foundation, either version 3 of the License, or | ||
13 | * (at your option) any later version. | ||
14 | * | ||
15 | * Tox is distributed in the hope that it will be useful, | ||
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
18 | * GNU General Public License for more details. | ||
19 | * | ||
20 | * You should have received a copy of the GNU General Public License | ||
21 | * along with Tox. If not, see <http://www.gnu.org/licenses/>. | ||
22 | * | ||
23 | */ | ||
24 | |||
25 | #include "log.h" | ||
26 | |||
27 | #include "global.h" | ||
28 | |||
29 | #include <syslog.h> | ||
30 | |||
31 | #include <stdarg.h> | ||
32 | #include <stdio.h> | ||
33 | |||
34 | LOG_BACKEND current_backend = -1; | ||
35 | |||
36 | bool open_log(LOG_BACKEND backend) | ||
37 | { | ||
38 | if (current_backend != -1) { | ||
39 | return false; | ||
40 | } | ||
41 | |||
42 | if (backend == LOG_BACKEND_SYSLOG) { | ||
43 | openlog(DAEMON_NAME, LOG_NOWAIT | LOG_PID, LOG_DAEMON); | ||
44 | } | ||
45 | |||
46 | current_backend = backend; | ||
47 | |||
48 | return true; | ||
49 | } | ||
50 | |||
51 | bool close_log() | ||
52 | { | ||
53 | if (current_backend == -1) { | ||
54 | return false; | ||
55 | } | ||
56 | |||
57 | if (current_backend == LOG_BACKEND_SYSLOG) { | ||
58 | closelog(); | ||
59 | } | ||
60 | |||
61 | current_backend = -1; | ||
62 | |||
63 | return true; | ||
64 | } | ||
65 | |||
66 | int level_syslog(LOG_LEVEL level) | ||
67 | { | ||
68 | switch (level) { | ||
69 | case LOG_LEVEL_INFO: | ||
70 | return LOG_INFO; | ||
71 | case LOG_LEVEL_WARNING: | ||
72 | return LOG_WARNING; | ||
73 | case LOG_LEVEL_ERROR: | ||
74 | return LOG_ERR; | ||
75 | } | ||
76 | } | ||
77 | |||
78 | void log_syslog(LOG_LEVEL level, const char *format, va_list args) | ||
79 | { | ||
80 | vsyslog(level_syslog(level), format, args); | ||
81 | } | ||
82 | |||
83 | FILE* level_stdout(LOG_LEVEL level) | ||
84 | { | ||
85 | switch (level) { | ||
86 | case LOG_LEVEL_INFO: | ||
87 | return stdout; | ||
88 | case LOG_LEVEL_WARNING: // intentional fallthrough | ||
89 | case LOG_LEVEL_ERROR: | ||
90 | return stderr; | ||
91 | } | ||
92 | } | ||
93 | |||
94 | void log_stdout(LOG_LEVEL level, const char *format, va_list args) | ||
95 | { | ||
96 | vfprintf(level_stdout(level), format, args); | ||
97 | fflush(level_stdout(level)); | ||
98 | } | ||
99 | |||
100 | bool write_log(LOG_LEVEL level, const char *format, ...) | ||
101 | { | ||
102 | va_list args; | ||
103 | va_start(args, format); | ||
104 | |||
105 | switch (current_backend) { | ||
106 | case LOG_BACKEND_SYSLOG: | ||
107 | log_syslog(level, format, args); | ||
108 | break; | ||
109 | case LOG_BACKEND_STDOUT: | ||
110 | log_stdout(level, format, args); | ||
111 | break; | ||
112 | } | ||
113 | |||
114 | va_end(args); | ||
115 | |||
116 | return current_backend != -1; | ||
117 | } | ||
diff --git a/other/bootstrap_daemon/src/log.h b/other/bootstrap_daemon/src/log.h new file mode 100644 index 00000000..61cb2ee3 --- /dev/null +++ b/other/bootstrap_daemon/src/log.h | |||
@@ -0,0 +1,64 @@ | |||
1 | /* log.h | ||
2 | * | ||
3 | * Tox DHT bootstrap daemon. | ||
4 | * Logging utility with support of multipel logging backends. | ||
5 | * | ||
6 | * Copyright (C) 2015-2016 Tox project All Rights Reserved. | ||
7 | * | ||
8 | * This file is part of Tox. | ||
9 | * | ||
10 | * Tox is free software: you can redistribute it and/or modify | ||
11 | * it under the terms of the GNU General Public License as published by | ||
12 | * the Free Software Foundation, either version 3 of the License, or | ||
13 | * (at your option) any later version. | ||
14 | * | ||
15 | * Tox is distributed in the hope that it will be useful, | ||
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
18 | * GNU General Public License for more details. | ||
19 | * | ||
20 | * You should have received a copy of the GNU General Public License | ||
21 | * along with Tox. If not, see <http://www.gnu.org/licenses/>. | ||
22 | * | ||
23 | */ | ||
24 | |||
25 | #ifndef LOG_H | ||
26 | #define LOG_H | ||
27 | |||
28 | #include <stdbool.h> | ||
29 | |||
30 | typedef enum LOG_BACKEND { | ||
31 | LOG_BACKEND_SYSLOG, | ||
32 | LOG_BACKEND_STDOUT | ||
33 | } LOG_BACKEND; | ||
34 | |||
35 | typedef enum LOG_LEVEL { | ||
36 | LOG_LEVEL_INFO, | ||
37 | LOG_LEVEL_WARNING, | ||
38 | LOG_LEVEL_ERROR | ||
39 | } LOG_LEVEL; | ||
40 | |||
41 | /** | ||
42 | * Initializes logger. | ||
43 | * @param backend Specifies which backend to use. | ||
44 | * @return true on success, flase if log is already opened. | ||
45 | */ | ||
46 | bool open_log(LOG_BACKEND backend); | ||
47 | |||
48 | /** | ||
49 | * Releases all used resources by the logger. | ||
50 | * @return true on success, flase if log is already closed. | ||
51 | */ | ||
52 | bool close_log(); | ||
53 | |||
54 | /** | ||
55 | * Writes a message to the log. | ||
56 | * @param level Log level to use. | ||
57 | * @param format printf-like format string. | ||
58 | * @param ... Zero or more arguments, similar to printf function. | ||
59 | * @return true on success, flase if log is closed. | ||
60 | */ | ||
61 | bool write_log(LOG_LEVEL level, const char *format, ...); | ||
62 | |||
63 | |||
64 | #endif // LOG_H | ||
diff --git a/other/bootstrap_daemon/src/tox-bootstrapd.c b/other/bootstrap_daemon/src/tox-bootstrapd.c new file mode 100644 index 00000000..e252a37d --- /dev/null +++ b/other/bootstrap_daemon/src/tox-bootstrapd.c | |||
@@ -0,0 +1,342 @@ | |||
1 | /* tox-bootstrapd.c | ||
2 | * | ||
3 | * Tox DHT bootstrap daemon. | ||
4 | * Main file. | ||
5 | * | ||
6 | * Copyright (C) 2014-2016 Tox project All Rights Reserved. | ||
7 | * | ||
8 | * This file is part of Tox. | ||
9 | * | ||
10 | * Tox is free software: you can redistribute it and/or modify | ||
11 | * it under the terms of the GNU General Public License as published by | ||
12 | * the Free Software Foundation, either version 3 of the License, or | ||
13 | * (at your option) any later version. | ||
14 | * | ||
15 | * Tox is distributed in the hope that it will be useful, | ||
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
18 | * GNU General Public License for more details. | ||
19 | * | ||
20 | * You should have received a copy of the GNU General Public License | ||
21 | * along with Tox. If not, see <http://www.gnu.org/licenses/>. | ||
22 | * | ||
23 | */ | ||
24 | |||
25 | // system provided | ||
26 | #include <unistd.h> | ||
27 | |||
28 | // C | ||
29 | #include <stdio.h> | ||
30 | #include <stdlib.h> | ||
31 | #include <string.h> | ||
32 | |||
33 | // toxcore | ||
34 | #include "../../../toxcore/LAN_discovery.h" | ||
35 | #include "../../../toxcore/onion_announce.h" | ||
36 | #include "../../../toxcore/TCP_server.h" | ||
37 | #include "../../../toxcore/util.h" | ||
38 | |||
39 | // misc | ||
40 | #include "../../bootstrap_node_packets.h" | ||
41 | |||
42 | #include "command_line_arguments.h" | ||
43 | #include "config.h" | ||
44 | #include "global.h" | ||
45 | #include "log.h" | ||
46 | |||
47 | |||
48 | #define SLEEP_MILLISECONDS(MS) usleep(1000*MS) | ||
49 | |||
50 | // Uses the already existing key or creates one if it didn't exist | ||
51 | // | ||
52 | // retirns 1 on success | ||
53 | // 0 on failure - no keys were read or stored | ||
54 | |||
55 | int manage_keys(DHT *dht, char *keys_file_path) | ||
56 | { | ||
57 | const uint32_t KEYS_SIZE = crypto_box_PUBLICKEYBYTES + crypto_box_SECRETKEYBYTES; | ||
58 | uint8_t keys[KEYS_SIZE]; | ||
59 | FILE *keys_file; | ||
60 | |||
61 | // Check if file exits, proceed to open and load keys | ||
62 | keys_file = fopen(keys_file_path, "r"); | ||
63 | |||
64 | if (keys_file != NULL) { | ||
65 | const size_t read_size = fread(keys, sizeof(uint8_t), KEYS_SIZE, keys_file); | ||
66 | |||
67 | if (read_size != KEYS_SIZE) { | ||
68 | fclose(keys_file); | ||
69 | return 0; | ||
70 | } | ||
71 | |||
72 | memcpy(dht->self_public_key, keys, crypto_box_PUBLICKEYBYTES); | ||
73 | memcpy(dht->self_secret_key, keys + crypto_box_PUBLICKEYBYTES, crypto_box_SECRETKEYBYTES); | ||
74 | } else { | ||
75 | // Otherwise save new keys | ||
76 | memcpy(keys, dht->self_public_key, crypto_box_PUBLICKEYBYTES); | ||
77 | memcpy(keys + crypto_box_PUBLICKEYBYTES, dht->self_secret_key, crypto_box_SECRETKEYBYTES); | ||
78 | |||
79 | keys_file = fopen(keys_file_path, "w"); | ||
80 | |||
81 | if (!keys_file) | ||
82 | return 0; | ||
83 | |||
84 | const size_t write_size = fwrite(keys, sizeof(uint8_t), KEYS_SIZE, keys_file); | ||
85 | |||
86 | if (write_size != KEYS_SIZE) { | ||
87 | fclose(keys_file); | ||
88 | return 0; | ||
89 | } | ||
90 | } | ||
91 | |||
92 | fclose(keys_file); | ||
93 | |||
94 | return 1; | ||
95 | } | ||
96 | |||
97 | // Prints public key | ||
98 | |||
99 | void print_public_key(const uint8_t *public_key) | ||
100 | { | ||
101 | char buffer[2 * crypto_box_PUBLICKEYBYTES + 1]; | ||
102 | int index = 0; | ||
103 | |||
104 | size_t i; | ||
105 | |||
106 | for (i = 0; i < crypto_box_PUBLICKEYBYTES; i++) { | ||
107 | index += sprintf(buffer + index, "%02hhX", public_key[i]); | ||
108 | } | ||
109 | |||
110 | write_log(LOG_LEVEL_INFO, "Public Key: %s\n", buffer); | ||
111 | |||
112 | return; | ||
113 | } | ||
114 | |||
115 | // Demonizes the process, appending PID to the PID file and closing file descriptors based on log backend | ||
116 | // Terminates the application if the daemonization fails. | ||
117 | |||
118 | void daemonize(LOG_BACKEND log_backend, char *pid_file_path) | ||
119 | { | ||
120 | // Check if the PID file exists | ||
121 | FILE *pid_file; | ||
122 | |||
123 | if ((pid_file = fopen(pid_file_path, "r"))) { | ||
124 | write_log(LOG_LEVEL_WARNING, "Another instance of the daemon is already running, PID file %s exists.\n", pid_file_path); | ||
125 | fclose(pid_file); | ||
126 | } | ||
127 | |||
128 | // Open the PID file for writing | ||
129 | pid_file = fopen(pid_file_path, "a+"); | ||
130 | if (pid_file == NULL) { | ||
131 | write_log(LOG_LEVEL_ERROR, "Couldn't open the PID file for writing: %s. Exiting.\n", pid_file_path); | ||
132 | exit(1); | ||
133 | } | ||
134 | |||
135 | // Fork off from the parent process | ||
136 | const pid_t pid = fork(); | ||
137 | |||
138 | if (pid > 0) { | ||
139 | fprintf(pid_file, "%d", pid); | ||
140 | fclose(pid_file); | ||
141 | write_log(LOG_LEVEL_INFO, "Forked successfully: PID: %d.\n", pid); | ||
142 | exit(0); | ||
143 | } else { | ||
144 | fclose(pid_file); | ||
145 | } | ||
146 | |||
147 | if (pid < 0) { | ||
148 | write_log(LOG_LEVEL_ERROR, "Forking failed. Exiting.\n"); | ||
149 | exit(1); | ||
150 | } | ||
151 | |||
152 | // Create a new SID for the child process | ||
153 | if (setsid() < 0) { | ||
154 | write_log(LOG_LEVEL_ERROR, "SID creation failure. Exiting.\n"); | ||
155 | exit(1); | ||
156 | } | ||
157 | |||
158 | // Change the file mode mask | ||
159 | umask(0); | ||
160 | |||
161 | // Change the current working directory | ||
162 | if ((chdir("/")) < 0) { | ||
163 | write_log(LOG_LEVEL_ERROR, "Couldn't change working directory to '/'. Exiting.\n"); | ||
164 | exit(1); | ||
165 | } | ||
166 | |||
167 | // Go quiet | ||
168 | if (log_backend != LOG_BACKEND_STDOUT) { | ||
169 | close(STDOUT_FILENO); | ||
170 | close(STDIN_FILENO); | ||
171 | close(STDERR_FILENO); | ||
172 | } | ||
173 | } | ||
174 | |||
175 | int main(int argc, char *argv[]) | ||
176 | { | ||
177 | char *cfg_file_path; | ||
178 | LOG_BACKEND log_backend; | ||
179 | bool run_in_foreground; | ||
180 | |||
181 | // choose backend for printing command line argument parsing output based on whether the daemon is being run from a terminal | ||
182 | log_backend = isatty(STDOUT_FILENO) ? LOG_BACKEND_STDOUT : LOG_BACKEND_SYSLOG; | ||
183 | |||
184 | open_log(log_backend); | ||
185 | handle_command_line_arguments(argc, argv, &cfg_file_path, &log_backend, &run_in_foreground); | ||
186 | close_log(); | ||
187 | |||
188 | open_log(log_backend); | ||
189 | |||
190 | write_log(LOG_LEVEL_INFO, "Running \"%s\" version %lu.\n", DAEMON_NAME, DAEMON_VERSION_NUMBER); | ||
191 | |||
192 | char *pid_file_path, *keys_file_path; | ||
193 | int port; | ||
194 | int enable_ipv6; | ||
195 | int enable_ipv4_fallback; | ||
196 | int enable_lan_discovery; | ||
197 | int enable_tcp_relay; | ||
198 | uint16_t *tcp_relay_ports; | ||
199 | int tcp_relay_port_count; | ||
200 | int enable_motd; | ||
201 | char *motd; | ||
202 | |||
203 | if (get_general_config(cfg_file_path, &pid_file_path, &keys_file_path, &port, &enable_ipv6, &enable_ipv4_fallback, | ||
204 | &enable_lan_discovery, &enable_tcp_relay, &tcp_relay_ports, &tcp_relay_port_count, &enable_motd, &motd)) { | ||
205 | write_log(LOG_LEVEL_INFO, "General config read successfully\n"); | ||
206 | } else { | ||
207 | write_log(LOG_LEVEL_ERROR, "Couldn't read config file: %s. Exiting.\n", cfg_file_path); | ||
208 | return 1; | ||
209 | } | ||
210 | |||
211 | if (port < MIN_ALLOWED_PORT || port > MAX_ALLOWED_PORT) { | ||
212 | write_log(LOG_LEVEL_ERROR, "Invalid port: %d, should be in [%d, %d]. Exiting.\n", port, MIN_ALLOWED_PORT, MAX_ALLOWED_PORT); | ||
213 | return 1; | ||
214 | } | ||
215 | |||
216 | if (!run_in_foreground) { | ||
217 | daemonize(log_backend, pid_file_path); | ||
218 | } | ||
219 | |||
220 | free(pid_file_path); | ||
221 | |||
222 | IP ip; | ||
223 | ip_init(&ip, enable_ipv6); | ||
224 | |||
225 | Networking_Core *net = new_networking(ip, port); | ||
226 | |||
227 | if (net == NULL) { | ||
228 | if (enable_ipv6 && enable_ipv4_fallback) { | ||
229 | write_log(LOG_LEVEL_WARNING, "Couldn't initialize IPv6 networking. Falling back to using IPv4.\n"); | ||
230 | enable_ipv6 = 0; | ||
231 | ip_init(&ip, enable_ipv6); | ||
232 | net = new_networking(ip, port); | ||
233 | |||
234 | if (net == NULL) { | ||
235 | write_log(LOG_LEVEL_ERROR, "Couldn't fallback to IPv4. Exiting.\n"); | ||
236 | return 1; | ||
237 | } | ||
238 | } else { | ||
239 | write_log(LOG_LEVEL_ERROR, "Couldn't initialize networking. Exiting.\n"); | ||
240 | return 1; | ||
241 | } | ||
242 | } | ||
243 | |||
244 | DHT *dht = new_DHT(net); | ||
245 | |||
246 | if (dht == NULL) { | ||
247 | write_log(LOG_LEVEL_ERROR, "Couldn't initialize Tox DHT instance. Exiting.\n"); | ||
248 | return 1; | ||
249 | } | ||
250 | |||
251 | Onion *onion = new_onion(dht); | ||
252 | Onion_Announce *onion_a = new_onion_announce(dht); | ||
253 | |||
254 | if (!(onion && onion_a)) { | ||
255 | write_log(LOG_LEVEL_ERROR, "Couldn't initialize Tox Onion. Exiting.\n"); | ||
256 | return 1; | ||
257 | } | ||
258 | |||
259 | if (enable_motd) { | ||
260 | if (bootstrap_set_callbacks(dht->net, DAEMON_VERSION_NUMBER, (uint8_t *)motd, strlen(motd) + 1) == 0) { | ||
261 | write_log(LOG_LEVEL_INFO, "Set MOTD successfully.\n"); | ||
262 | } else { | ||
263 | write_log(LOG_LEVEL_ERROR, "Couldn't set MOTD: %s. Exiting.\n", motd); | ||
264 | return 1; | ||
265 | } | ||
266 | |||
267 | free(motd); | ||
268 | } | ||
269 | |||
270 | if (manage_keys(dht, keys_file_path)) { | ||
271 | write_log(LOG_LEVEL_INFO, "Keys are managed successfully.\n"); | ||
272 | } else { | ||
273 | write_log(LOG_LEVEL_ERROR, "Couldn't read/write: %s. Exiting.\n", keys_file_path); | ||
274 | return 1; | ||
275 | } | ||
276 | |||
277 | free(keys_file_path); | ||
278 | |||
279 | TCP_Server *tcp_server = NULL; | ||
280 | |||
281 | if (enable_tcp_relay) { | ||
282 | if (tcp_relay_port_count == 0) { | ||
283 | write_log(LOG_LEVEL_ERROR, "No TCP relay ports read. Exiting.\n"); | ||
284 | return 1; | ||
285 | } | ||
286 | |||
287 | tcp_server = new_TCP_server(enable_ipv6, tcp_relay_port_count, tcp_relay_ports, dht->self_secret_key, onion); | ||
288 | |||
289 | // tcp_relay_port_count != 0 at this point | ||
290 | free(tcp_relay_ports); | ||
291 | |||
292 | if (tcp_server != NULL) { | ||
293 | write_log(LOG_LEVEL_INFO, "Initialized Tox TCP server successfully.\n"); | ||
294 | } else { | ||
295 | write_log(LOG_LEVEL_ERROR, "Couldn't initialize Tox TCP server. Exiting.\n"); | ||
296 | return 1; | ||
297 | } | ||
298 | } | ||
299 | |||
300 | if (bootstrap_from_config(cfg_file_path, dht, enable_ipv6)) { | ||
301 | write_log(LOG_LEVEL_INFO, "List of bootstrap nodes read successfully.\n"); | ||
302 | } else { | ||
303 | write_log(LOG_LEVEL_ERROR, "Couldn't read list of bootstrap nodes in %s. Exiting.\n", cfg_file_path); | ||
304 | return 1; | ||
305 | } | ||
306 | |||
307 | print_public_key(dht->self_public_key); | ||
308 | |||
309 | uint64_t last_LANdiscovery = 0; | ||
310 | const uint16_t htons_port = htons(port); | ||
311 | |||
312 | int waiting_for_dht_connection = 1; | ||
313 | |||
314 | if (enable_lan_discovery) { | ||
315 | LANdiscovery_init(dht); | ||
316 | write_log(LOG_LEVEL_INFO, "Initialized LAN discovery successfully.\n"); | ||
317 | } | ||
318 | |||
319 | while (1) { | ||
320 | do_DHT(dht); | ||
321 | |||
322 | if (enable_lan_discovery && is_timeout(last_LANdiscovery, LAN_DISCOVERY_INTERVAL)) { | ||
323 | send_LANdiscovery(htons_port, dht); | ||
324 | last_LANdiscovery = unix_time(); | ||
325 | } | ||
326 | |||
327 | if (enable_tcp_relay) { | ||
328 | do_TCP_server(tcp_server); | ||
329 | } | ||
330 | |||
331 | networking_poll(dht->net); | ||
332 | |||
333 | if (waiting_for_dht_connection && DHT_isconnected(dht)) { | ||
334 | write_log(LOG_LEVEL_INFO, "Connected to another bootstrap node successfully.\n"); | ||
335 | waiting_for_dht_connection = 0; | ||
336 | } | ||
337 | |||
338 | SLEEP_MILLISECONDS(30); | ||
339 | } | ||
340 | |||
341 | return 1; | ||
342 | } | ||