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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
53 #define DEBUG_HARDCODED_PEER_TABLE 1
54 #define DEBUG_PING_SELF 0
56 /***** command-line option handling / setup *****/
58 /* Strip trailing / from a path name.*/
59 static void remove_trailing_slash(char *s) {
68 /* argp global parameters */
69 const char *argp_program_bug_address=PACKAGE_BUGREPORT; /* bug reporting address */
72 static const char doc[]=PACKAGE_NAME " - Moonshot Trust Router";
73 static const char arg_doc[]=""; /* string describing arguments, if any */
75 /* define the options here. Fields are:
76 * { long-name, short-name, variable name, options, help description } */
77 static const struct argp_option cmdline_options[] = {
78 { "config-dir", 'c', "DIR", 0, "Specify configuration file location (default is current directory)"},
82 /* structure for communicating with option parser */
87 /* parser for individual options - fills in a struct cmdline_args */
88 static error_t parse_option(int key, char *arg, struct argp_state *state)
90 /* get a shorthand to the command line argument structure, part of state */
91 struct cmdline_args *arguments=state->input;
96 /* somehow we got called without an argument */
97 return ARGP_ERR_UNKNOWN;
99 arguments->config_dir=arg;
103 return ARGP_ERR_UNKNOWN;
106 return 0; /* success */
109 /* assemble the argp parser */
110 static struct argp argp = {cmdline_options, parse_option, arg_doc, doc};
113 /***** talloc error handling *****/
114 /* called when talloc tries to abort */
115 static void tr_abort(const char *reason)
117 tr_crit("tr_abort: Critical error, talloc aborted. Reason: %s", reason);
121 #if TALLOC_DEBUG_ENABLE
122 static void tr_talloc_log(const char *msg)
124 tr_debug("talloc: %s", msg);
126 #endif /* TALLOC_DEBUG_ENABLE */
135 static void debug_ping(evutil_socket_t fd, short what, void *arg)
137 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
138 struct thingy *thingy=(struct thingy *)arg;
139 TRPS_INSTANCE *trps=thingy->trps;
143 struct timeval interval={1, 0};
147 tr_debug("debug_ping entered");
148 if (trps->trpc==NULL)
149 tr_trpc_initiate(trps, trps->hostname, trps->port);
151 /* create a TRP route request msg */
152 req=trp_req_new(tmp_ctx);
153 name=tr_new_name("community");
154 trp_req_set_comm(req, name);
155 name=tr_new_name("realm");
156 trp_req_set_realm(req, name);
157 tr_msg_set_trp_req(&msg, req);
158 encoded=tr_msg_encode(&msg);
160 tr_err("debug_ping: error encoding TRP message.");
162 tr_debug("debug_ping: sending message");
163 trps_send_msg(trps, NULL, encoded);
164 tr_msg_free_encoded(encoded);
167 evtimer_add(thingy->ev, &interval);
169 #endif /* DEBUG_PING_SELF */
171 int main(int argc, char *argv[])
173 TALLOC_CTX *main_ctx=NULL;
175 TR_INSTANCE *tr = NULL;
176 struct cmdline_args opts;
177 struct event_base *ev_base;
178 struct tr_socket_event tids_ev;
179 TR_TRPS_EVENTS *trps_ev;
180 struct event *cfgwatch_ev;
182 struct event *debug_ping_ev;
183 struct timeval notime={0, 0};
184 struct thingy thingy={NULL};
185 #endif /* DEBUG_PING_SELF */
187 /* we're going to be multithreaded, so disable null context tracking */
188 talloc_set_abort_fn(tr_abort);
189 talloc_disable_null_tracking();
190 #if TALLOC_DEBUG_ENABLE
191 talloc_set_log_fn(tr_talloc_log);
192 #endif /* TALLOC_DEBUG_ENABLE */
193 main_ctx=talloc_new(NULL);
195 /* Use standalone logging */
198 /***** parse command-line arguments *****/
202 /* parse the command line*/
203 argp_parse(&argp, argc, argv, 0, 0, &opts);
205 /* process options */
206 remove_trailing_slash(opts.config_dir);
208 /***** create a Trust Router instance *****/
209 if (NULL == (tr = tr_create(main_ctx))) {
210 tr_crit("Unable to create Trust Router instance, exiting.");
214 /***** initialize the trust path query server instance *****/
215 if (NULL == (tr->tids = tids_create (tr))) {
216 tr_crit("Error initializing Trust Path Query Server instance.");
220 /***** initialize the trust router protocol server instance *****/
221 if (NULL == (tr->trps = trps_new(tr))) {
222 tr_crit("Error initializing Trust Router Protocol Server instance.");
226 /***** process configuration *****/
227 tr->cfgwatch=tr_cfgwatch_create(tr);
228 if (tr->cfgwatch == NULL) {
229 tr_crit("Unable to create configuration watcher object, exiting.");
232 tr->cfgwatch->config_dir=opts.config_dir;
233 tr->cfgwatch->cfg_mgr=tr->cfg_mgr;
234 tr->cfgwatch->update_cb=tr_config_changed; /* handle configuration changes */
235 tr->cfgwatch->update_cookie=(void *)(tr->trps);
236 if (0 != tr_read_and_apply_config(tr->cfgwatch)) {
237 tr_crit("Error reading configuration, exiting.");
241 /***** Set up the event loop *****/
242 ev_base=tr_event_loop_init(); /* Set up the event loop */
244 tr_crit("Error initializing event loop.");
248 /* install configuration file watching events */
249 tr->cfgwatch->poll_interval=(struct timeval) {1,0}; /* set poll interval in {sec, usec} */
250 tr->cfgwatch->settling_time=(struct timeval) {5,0}; /* delay for changes to settle before updating */
251 /* TODO: pull these settings out of the configuration files */
253 /* already set config_dir, fstat_list and n_files earlier */
254 if (0 != tr_cfgwatch_event_init(ev_base, tr->cfgwatch, &cfgwatch_ev)) {
255 tr_crit("Error initializing configuration file watcher.");
259 /*tr_status_event_init();*/ /* install status reporting events */
261 /* install TID server events */
262 if (0 != tr_tids_event_init(ev_base,
266 tr_crit("Error initializing Trust Path Query Server instance.");
270 /* install TRP handler events */
271 trps_ev=tr_trps_events_new(main_ctx);
272 if (0 != tr_trps_event_init(ev_base,
276 tr_crit("Error initializing Trust Path Query Server instance.");
280 #if DEBUG_HARDCODED_PEER_TABLE
282 TRP_PEER *hc_peer=NULL;
285 hc_peer=trp_peer_new(main_ctx); /* will later be stolen by ptable context */
287 tr_crit("Unable to allocate new peer. Aborting.");
290 trp_peer_set_server(hc_peer, "epsilon.vmnet");
291 trp_peer_set_gssname(hc_peer, tr_new_name("tr-epsilon-vmnet@apc.painless-security.com"));
292 switch (tr->trps->port) {
294 trp_peer_set_port(hc_peer, 10001);
297 trp_peer_set_port(hc_peer, 10000);
300 tr_crit("Cannot use hardcoded peer table with port other than 10000 or 10001.");
303 if (TRP_SUCCESS != trps_add_peer(tr->trps, hc_peer)) {
304 tr_crit("Unable to add peer.");
308 s=trp_ptable_to_str(main_ctx, tr->trps->ptable, NULL, NULL);
309 tr_debug("Peer Table:\n%s\n", s);
312 #endif /* DEBUG_HARDCODED_PEER_TABLE */
315 /* for debugging, send a message to peers on a timer */
316 debug_ping_ev=evtimer_new(ev_base, debug_ping, (void *)&thingy);
317 thingy.trps=tr->trps;
318 thingy.ev=debug_ping_ev;
319 evtimer_add(debug_ping_ev, ¬ime);
320 #endif /* DEBUG_PING_SELF */
322 tr_event_loop_run(ev_base); /* does not return until we are done */
324 /* TODO: ensure talloc is properly used so this actually works */
325 tr_destroy(tr); /* thanks to talloc, should destroy everything */
327 talloc_free(main_ctx);