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38 #include <event2/event.h>
42 #include <tid_internal.h>
43 #include <mon_internal.h>
47 #include <tr_config.h>
49 #include <tr_cfgwatch.h>
53 #define TALLOC_DEBUG_ENABLE 1
55 /***** command-line option handling / setup *****/
57 static void print_version_info(void)
59 printf("Moonshot Trust Router %s\n\n", PACKAGE_VERSION);
62 /* Strip trailing / from a path name.*/
63 static void remove_trailing_slash(char *s) {
72 /* argp global parameters */
73 const char *argp_program_bug_address=PACKAGE_BUGREPORT; /* bug reporting address */
76 static const char doc[]=PACKAGE_NAME " - Moonshot Trust Router " PACKAGE_VERSION;
77 static const char arg_doc[]=""; /* string describing arguments, if any */
79 /* define the options here. Fields are:
80 * { long-name, short-name, variable name, options, help description } */
81 static const struct argp_option cmdline_options[] = {
82 { "config-dir", 'c', "DIR", 0, "Specify configuration file location (default is current directory)"},
83 { "config-validate", 'C', NULL, 0, "Validate configuration files and exit"},
84 { "version", 1, NULL, 0, "Print version information and exit"},
88 /* structure for communicating with option parser */
90 int version_requested;
91 int validate_config_and_exit;
95 /* parser for individual options - fills in a struct cmdline_args */
96 static error_t parse_option(int key, char *arg, struct argp_state *state)
98 /* get a shorthand to the command line argument structure, part of state */
99 struct cmdline_args *arguments=state->input;
104 /* somehow we got called without an argument */
105 return ARGP_ERR_UNKNOWN;
107 arguments->config_dir=arg;
111 arguments->version_requested=1;
115 arguments->validate_config_and_exit=1;
119 return ARGP_ERR_UNKNOWN;
122 return 0; /* success */
125 /* assemble the argp parser */
126 static struct argp argp = {cmdline_options, parse_option, arg_doc, doc};
129 /***** talloc error handling *****/
130 /* called when talloc tries to abort */
131 static void tr_abort(const char *reason)
133 tr_crit("tr_abort: Critical error, talloc aborted. Reason: %s", reason);
137 #if TALLOC_DEBUG_ENABLE
138 static void tr_talloc_log(const char *msg)
140 tr_debug("talloc: %s", msg);
142 #endif /* TALLOC_DEBUG_ENABLE */
144 static void configure_signals(void)
148 sigemptyset(&signals);
149 sigaddset(&signals, SIGPIPE);
150 pthread_sigmask(SIG_BLOCK, &signals, NULL);
153 int main(int argc, char *argv[])
155 TALLOC_CTX *main_ctx=NULL;
157 TR_INSTANCE *tr = NULL;
158 struct cmdline_args opts;
159 struct event_base *ev_base;
160 struct tr_socket_event tids_ev = {0};
161 struct tr_socket_event mon_ev = {0};
162 struct event *cfgwatch_ev;
166 /* we're going to be multithreaded, so disable null context tracking */
167 talloc_set_abort_fn(tr_abort);
168 talloc_disable_null_tracking();
169 #if TALLOC_DEBUG_ENABLE
170 talloc_set_log_fn(tr_talloc_log);
171 #endif /* TALLOC_DEBUG_ENABLE */
172 main_ctx=talloc_new(NULL);
174 /* Use standalone logging */
177 /***** parse command-line arguments *****/
179 opts.version_requested=0;
180 opts.validate_config_and_exit=0;
183 /* parse the command line*/
184 argp_parse(&argp, argc, argv, 0, 0, &opts);
186 /* process options */
187 remove_trailing_slash(opts.config_dir);
190 /***** Print version info *****/
191 print_version_info();
192 if (opts.version_requested)
193 return 0; /* requested that we print version and exit */
195 /***** create a Trust Router instance *****/
196 if (NULL == (tr = tr_create(main_ctx))) {
197 tr_crit("Unable to create Trust Router instance, exiting.");
201 /***** initialize the trust path query server instance *****/
202 if (NULL == (tr->tids = tids_new(tr))) {
203 tr_crit("Error initializing Trust Path Query Server instance.");
207 /***** initialize the trust router protocol server instance *****/
208 if (NULL == (tr->trps = trps_new(tr))) {
209 tr_crit("Error initializing Trust Router Protocol Server instance.");
213 /***** initialize the monitoring interface instance *****/
214 if (NULL == (tr->mons = mons_new(tr))) {
215 tr_crit("Error initializing monitoring interface instance.");
218 /* Monitor our tids/trps instances */
219 tr->mons->tids = tr->tids;
220 tr->mons->trps = tr->trps;
222 /***** process configuration *****/
223 tr->cfgwatch=tr_cfgwatch_create(tr);
224 if (tr->cfgwatch == NULL) {
225 tr_crit("Unable to create configuration watcher object, exiting.");
228 tr->cfgwatch->config_dir=opts.config_dir;
229 tr->cfgwatch->cfg_mgr=tr->cfg_mgr;
230 tr->cfgwatch->update_cb=tr_config_changed; /* handle configuration changes */
231 tr->cfgwatch->update_cookie=(void *)tr;
232 if (0 != tr_read_and_apply_config(tr->cfgwatch)) {
233 tr_crit("Error reading configuration, exiting.");
237 /***** Exit here if we are just validating our configuration *****/
238 if (opts.validate_config_and_exit) {
239 printf("Valid configuration found in %s.\n", opts.config_dir);
242 /***** Set up the event loop *****/
243 ev_base=tr_event_loop_init(); /* Set up the event loop */
245 tr_crit("Error initializing event loop.");
249 /* already set config_dir, fstat_list and n_files earlier */
250 if (0 != tr_cfgwatch_event_init(ev_base, tr->cfgwatch, &cfgwatch_ev)) {
251 tr_crit("Error initializing configuration file watcher.");
255 /* install monitoring interface events */
256 tr_debug("Initializing monitoring interface events.");
257 if (0 != tr_mons_event_init(ev_base, tr->mons, tr->cfg_mgr, &mon_ev)) {
258 tr_crit("Error initializing monitoring interface.");
262 /* install TID server events */
263 tr_debug("Initializing TID server events.");
264 if (0 != tr_tids_event_init(ev_base,
269 tr_crit("Error initializing Trust Path Query Server instance.");
273 /* install TRP handler events */
274 tr_debug("Initializing Dynamic Trust Router Protocol events.");
275 if (TRP_SUCCESS != tr_trps_event_init(ev_base, tr)) {
276 tr_crit("Error initializing Trust Path Query Server instance.");
280 tr_debug("Starting event loop.");
281 tr_event_loop_run(ev_base); /* does not return until we are done */
283 tr_destroy(tr); /* thanks to talloc, should destroy everything */
285 talloc_free(main_ctx);