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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 */
133 static void debug_ping(evutil_socket_t fd, short what, void *arg)
135 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
136 struct thingy *thingy=(struct thingy *)arg;
137 TRPS_INSTANCE *trps=thingy->trps;
141 struct timeval interval={1, 0};
145 tr_debug("debug_ping entered");
146 if (trps->trpc==NULL)
147 tr_trpc_initiate(trps, trps->hostname, trps->port);
149 /* create a TRP route request msg */
150 req=trp_req_new(tmp_ctx);
151 name=tr_new_name("community");
152 trp_req_set_comm(req, name);
153 name=tr_new_name("realm");
154 trp_req_set_realm(req, name);
155 tr_msg_set_trp_req(&msg, req);
156 encoded=tr_msg_encode(&msg);
158 tr_err("debug_ping: error encoding TRP message.");
160 tr_debug("debug_ping: sending message");
161 trps_send_msg(trps, NULL, encoded);
162 tr_msg_free_encoded(encoded);
165 evtimer_add(thingy->ev, &interval);
167 #endif /* DEBUG_PING_SELF */
169 int main(int argc, char *argv[])
171 TALLOC_CTX *main_ctx=NULL;
173 TR_INSTANCE *tr = NULL;
174 struct cmdline_args opts;
175 struct event_base *ev_base;
176 struct tr_socket_event tids_ev;
177 TR_TRPS_EVENTS *trps_ev;
178 struct event *cfgwatch_ev;
180 struct event *debug_ping_ev;
181 struct timeval notime={0, 0};
182 struct thingy thingy={NULL};
183 #endif /* DEBUG_PING_SELF */
185 /* we're going to be multithreaded, so disable null context tracking */
186 talloc_set_abort_fn(tr_abort);
187 talloc_disable_null_tracking();
188 #if TALLOC_DEBUG_ENABLE
189 talloc_set_log_fn(tr_talloc_log);
190 #endif /* TALLOC_DEBUG_ENABLE */
191 main_ctx=talloc_new(NULL);
193 /* Use standalone logging */
196 /***** parse command-line arguments *****/
200 /* parse the command line*/
201 argp_parse(&argp, argc, argv, 0, 0, &opts);
203 /* process options */
204 remove_trailing_slash(opts.config_dir);
206 /***** create a Trust Router instance *****/
207 if (NULL == (tr = tr_create(main_ctx))) {
208 tr_crit("Unable to create Trust Router instance, exiting.");
212 /***** process configuration *****/
213 tr->cfgwatch=tr_cfgwatch_create(tr);
214 if (tr->cfgwatch == NULL) {
215 tr_crit("Unable to create configuration watcher object, exiting.");
218 tr->cfgwatch->config_dir=opts.config_dir;
219 tr->cfgwatch->cfg_mgr=tr->cfg_mgr;
220 if (0 != tr_read_and_apply_config(tr->cfgwatch)) {
221 tr_crit("Error reading configuration, exiting.");
225 /***** initialize the trust path query server instance *****/
226 if (NULL == (tr->tids = tids_create (tr))) {
227 tr_crit("Error initializing Trust Path Query Server instance.");
231 /***** initialize the trust router protocol server instance *****/
232 if (NULL == (tr->trps = trps_new(tr))) {
233 tr_crit("Error initializing Trust Router Protocol Server instance.");
237 /***** Set up the event loop *****/
238 ev_base=tr_event_loop_init(); /* Set up the event loop */
240 tr_crit("Error initializing event loop.");
244 /* install configuration file watching events */
245 tr->cfgwatch->poll_interval=(struct timeval) {1,0}; /* set poll interval in {sec, usec} */
246 tr->cfgwatch->settling_time=(struct timeval) {5,0}; /* delay for changes to settle before updating */
247 /* TODO: pull these settings out of the configuration files */
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 /*tr_status_event_init();*/ /* install status reporting events */
257 /* install TID server events */
258 if (0 != tr_tids_event_init(ev_base,
262 tr_crit("Error initializing Trust Path Query Server instance.");
266 /* install TRP handler events */
267 trps_ev=tr_trps_events_new(main_ctx);
268 if (0 != tr_trps_event_init(ev_base,
272 tr_crit("Error initializing Trust Path Query Server instance.");
277 /* for debugging, send a message to peers on a timer */
278 debug_ping_ev=evtimer_new(ev_base, debug_ping, (void *)&thingy);
279 thingy.trps=tr->trps;
280 thingy.ev=debug_ping_ev;
281 evtimer_add(debug_ping_ev, ¬ime);
282 #endif /* DEBUG_PING_SELF */
284 tr_event_loop_run(ev_base); /* does not return until we are done */
286 /* TODO: ensure talloc is properly used so this actually works */
287 tr_destroy(tr); /* thanks to talloc, should destroy everything */
289 talloc_free(main_ctx);