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39 #include <event2/event.h>
44 #include <tid_internal.h>
47 #include <tr_config.h>
49 #include <tr_cfgwatch.h>
52 #define TALLOC_DEBUG_ENABLE 1
54 /***** command-line option handling / setup *****/
56 /* Strip trailing / from a path name.*/
57 static void remove_trailing_slash(char *s) {
66 /* argp global parameters */
67 const char *argp_program_bug_address=PACKAGE_BUGREPORT; /* bug reporting address */
70 static const char doc[]=PACKAGE_NAME " - Moonshot Trust Router";
71 static const char arg_doc[]=""; /* string describing arguments, if any */
73 /* define the options here. Fields are:
74 * { long-name, short-name, variable name, options, help description } */
75 static const struct argp_option cmdline_options[] = {
76 { "config-dir", 'c', "DIR", 0, "Specify configuration file location (default is current directory)"},
80 /* structure for communicating with option parser */
85 /* parser for individual options - fills in a struct cmdline_args */
86 static error_t parse_option(int key, char *arg, struct argp_state *state)
88 /* get a shorthand to the command line argument structure, part of state */
89 struct cmdline_args *arguments=state->input;
94 /* somehow we got called without an argument */
95 return ARGP_ERR_UNKNOWN;
97 arguments->config_dir=arg;
101 return ARGP_ERR_UNKNOWN;
104 return 0; /* success */
107 /* assemble the argp parser */
108 static struct argp argp = {cmdline_options, parse_option, arg_doc, doc};
111 /***** talloc error handling *****/
112 /* called when talloc tries to abort */
113 static void tr_abort(const char *reason)
115 tr_crit("tr_abort: Critical error, talloc aborted. Reason: %s", reason);
119 #if TALLOC_DEBUG_ENABLE
120 static void tr_talloc_log(const char *msg)
122 tr_debug("talloc: %s", msg);
124 #endif /* TALLOC_DEBUG_ENABLE */
132 static void debug_ping(evutil_socket_t fd, short what, void *arg)
134 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
135 struct thingy *thingy=(struct thingy *)arg;
136 TRPS_INSTANCE *trps=thingy->trps;
140 struct timeval interval={1, 0};
144 tr_debug("debug_ping entered");
145 if (trps->trpc==NULL)
146 tr_trpc_initiate(trps, trps->hostname, trps->port);
148 /* create a TRP route request msg */
149 req=trp_req_new(tmp_ctx);
150 name=tr_new_name("community");
151 trp_req_set_comm(req, name);
152 name=tr_new_name("realm");
153 trp_req_set_realm(req, name);
154 tr_msg_set_trp_req(&msg, req);
155 encoded=tr_msg_encode(&msg);
157 tr_err("debug_ping: error encoding TRP message.");
159 tr_debug("debug_ping: sending message");
160 trps_send_msg(trps, NULL, encoded);
161 tr_msg_free_encoded(encoded);
164 evtimer_add(thingy->ev, &interval);
167 int main(int argc, char *argv[])
169 TALLOC_CTX *main_ctx=NULL;
171 TR_INSTANCE *tr = NULL;
172 struct cmdline_args opts;
173 struct event_base *ev_base;
174 struct tr_socket_event tids_ev;
175 TR_TRPS_EVENTS *trps_ev;
176 struct event *cfgwatch_ev;
177 struct event *debug_ping_ev;
178 struct timeval notime={0, 0};
179 struct thingy thingy={NULL};
181 /* we're going to be multithreaded, so disable null context tracking */
182 talloc_set_abort_fn(tr_abort);
183 talloc_disable_null_tracking();
184 #if TALLOC_DEBUG_ENABLE
185 talloc_set_log_fn(tr_talloc_log);
186 #endif /* TALLOC_DEBUG_ENABLE */
187 main_ctx=talloc_new(NULL);
189 /* Use standalone logging */
192 /***** parse command-line arguments *****/
196 /* parse the command line*/
197 argp_parse(&argp, argc, argv, 0, 0, &opts);
199 /* process options */
200 remove_trailing_slash(opts.config_dir);
202 /***** create a Trust Router instance *****/
203 if (NULL == (tr = tr_create(main_ctx))) {
204 tr_crit("Unable to create Trust Router instance, exiting.");
208 /***** process configuration *****/
209 tr->cfgwatch=tr_cfgwatch_create(tr);
210 if (tr->cfgwatch == NULL) {
211 tr_crit("Unable to create configuration watcher object, exiting.");
214 tr->cfgwatch->config_dir=opts.config_dir;
215 tr->cfgwatch->cfg_mgr=tr->cfg_mgr;
216 if (0 != tr_read_and_apply_config(tr->cfgwatch)) {
217 tr_crit("Error reading configuration, exiting.");
221 /***** initialize the trust path query server instance *****/
222 if (NULL == (tr->tids = tids_create (tr))) {
223 tr_crit("Error initializing Trust Path Query Server instance.");
227 /***** initialize the trust router protocol server instance *****/
228 if (NULL == (tr->trps = trps_new(tr))) {
229 tr_crit("Error initializing Trust Router Protocol Server instance.");
233 /***** Set up the event loop *****/
234 ev_base=tr_event_loop_init(); /* Set up the event loop */
236 tr_crit("Error initializing event loop.");
240 /* install configuration file watching events */
241 tr->cfgwatch->poll_interval=(struct timeval) {1,0}; /* set poll interval in {sec, usec} */
242 tr->cfgwatch->settling_time=(struct timeval) {5,0}; /* delay for changes to settle before updating */
243 /* TODO: pull these settings out of the configuration files */
245 /* already set config_dir, fstat_list and n_files earlier */
246 if (0 != tr_cfgwatch_event_init(ev_base, tr->cfgwatch, &cfgwatch_ev)) {
247 tr_crit("Error initializing configuration file watcher.");
251 /*tr_status_event_init();*/ /* install status reporting events */
253 /* install TID server events */
254 if (0 != tr_tids_event_init(ev_base,
258 tr_crit("Error initializing Trust Path Query Server instance.");
262 /* install TRP handler events */
263 trps_ev=tr_trps_events_new(main_ctx);
264 if (0 != tr_trps_event_init(ev_base,
268 tr_crit("Error initializing Trust Path Query Server instance.");
272 /* for debugging, send a message to peers on a timer */
273 debug_ping_ev=evtimer_new(ev_base, debug_ping, (void *)&thingy);
274 thingy.trps=tr->trps;
275 thingy.ev=debug_ping_ev;
276 evtimer_add(debug_ping_ev, ¬ime);
278 tr_event_loop_run(ev_base); /* does not return until we are done */
280 /* TODO: ensure talloc is properly used so this actually works */
281 tr_destroy(tr); /* thanks to talloc, should destroy everything */
283 talloc_free(main_ctx);