#include <stdio.h>
#include <stdlib.h>
-#include <jansson.h>
#include <argp.h>
#include <event2/event.h>
#include <talloc.h>
-#include <sys/stat.h>
-#include <sys/time.h>
+#include <signal.h>
-#include <tr.h>
-#include <tr_filter.h>
#include <tid_internal.h>
+#include <mon_internal.h>
+#include <tr_mon.h>
+#include <tr_tid.h>
+#include <tr_trp.h>
#include <tr_config.h>
-#include <tr_comm.h>
-#include <tr_idp.h>
-#include <tr_rp.h>
+#include <tr_event.h>
+#include <tr_cfgwatch.h>
+#include <tr.h>
#include <tr_debug.h>
-/* Structure to hold TR instance and original request in one cookie */
-typedef struct tr_resp_cookie {
- TR_INSTANCE *tr;
- TID_REQ *orig_req;
-} TR_RESP_COOKIE;
-
-
-static void tr_tidc_resp_handler (TIDC_INSTANCE *tidc,
- TID_REQ *req,
- TID_RESP *resp,
- void *resp_cookie)
-{
- tr_debug("tr_tidc_resp_handler: Response received (conn = %d)! Realm = %s, Community = %s.", ((TR_RESP_COOKIE *)resp_cookie)->orig_req->conn, resp->realm->buf, resp->comm->buf);
- req->resp_rcvd = 1;
-
- /* TBD -- handle concatentation of multiple responses to single req */
- tids_send_response(((TR_RESP_COOKIE *)resp_cookie)->tr->tids,
- ((TR_RESP_COOKIE *)resp_cookie)->orig_req,
- resp);
-
- return;
-}
-
-static int tr_tids_req_handler (TIDS_INSTANCE *tids,
- TID_REQ *orig_req,
- TID_RESP *resp,
- void *tr_in)
-{
- TIDC_INSTANCE *tidc = NULL;
- TR_RESP_COOKIE resp_cookie;
- TR_AAA_SERVER *aaa_servers = NULL;
- TR_NAME *apc = NULL;
- TID_REQ *fwd_req = NULL;
- TR_COMM *cfg_comm = NULL;
- TR_COMM *cfg_apc = NULL;
- TR_INSTANCE *tr = (TR_INSTANCE *) tr_in;
- int oaction = TR_FILTER_ACTION_REJECT;
- int rc = 0;
- time_t expiration_interval;
-
- if ((!tids) || (!orig_req) || (!resp) || (!tr)) {
- tr_debug("tr_tids_req_handler: Bad parameters");
- return -1;
- }
-
- tr_debug("tr_tids_req_handler: Request received (conn = %d)! Realm = %s, Comm = %s", orig_req->conn,
- orig_req->realm->buf, orig_req->comm->buf);
- if (tids)
- tids->req_count++;
-
- /* Duplicate the request, so we can modify and forward it */
- if (NULL == (fwd_req = tid_dup_req(orig_req))) {
- tr_debug("tr_tids_req_handler: Unable to duplicate request.");
- return -1;
- }
-
- if (NULL == (cfg_comm = tr_comm_lookup(tids->cookie, orig_req->comm))) {
- tr_notice("tr_tids_req_hander: Request for unknown comm: %s.", orig_req->comm->buf);
- tids_send_err_response(tids, orig_req, "Unknown community");
- return -1;
- }
-
- /* Check that the rp_realm matches the filter for the GSS name that
- * was received. */
-
- if ((!(tr)->rp_gss) ||
- (!(tr)->rp_gss->filter)) {
- tr_notice("tr_tids_req_handler: No GSS name for incoming request.");
- tids_send_err_response(tids, orig_req, "No GSS name for request");
- return -1;
- }
-
- if ((TR_FILTER_NO_MATCH == tr_filter_process_rp_permitted(orig_req->rp_realm, (tr)->rp_gss->filter, orig_req->cons, &fwd_req->cons, &oaction)) ||
- (TR_FILTER_ACTION_REJECT == oaction)) {
- tr_notice("tr_tids_req_handler: RP realm (%s) does not match RP Realm filter for GSS name", orig_req->rp_realm->buf);
- tids_send_err_response(tids, orig_req, "RP Realm filter error");
- return -1;
- }
- /* Check that the rp_realm is a member of the community in the request */
- if (NULL == (tr_find_comm_rp(cfg_comm, orig_req->rp_realm))) {
- tr_notice("tr_tids_req_handler: RP Realm (%s) not member of community (%s).", orig_req->rp_realm->buf, orig_req->comm->buf);
- tids_send_err_response(tids, orig_req, "RP COI membership error");
- return -1;
- }
-
- /* Map the comm in the request from a COI to an APC, if needed */
- if (TR_COMM_COI == cfg_comm->type) {
- tr_debug("tr_tids_req_handler: Community was a COI, switching.");
- /* TBD -- In theory there can be more than one? How would that work? */
- if ((!cfg_comm->apcs) || (!cfg_comm->apcs->id)) {
- tr_notice("No valid APC for COI %s.", orig_req->comm->buf);
- tids_send_err_response(tids, orig_req, "No valid APC for community");
- return -1;
- }
- apc = tr_dup_name(cfg_comm->apcs->id);
-
- /* Check that the APC is configured */
- if (NULL == (cfg_apc = tr_comm_lookup(tids->cookie, apc))) {
- tr_notice("tr_tids_req_hander: Request for unknown comm: %s.", apc->buf);
- tids_send_err_response(tids, orig_req, "Unknown APC");
- return -1;
- }
-
- fwd_req->comm = apc;
- fwd_req->orig_coi = orig_req->comm;
-
- /* Check that rp_realm is a member of this APC */
- if (NULL == (tr_find_comm_rp(cfg_apc, orig_req->rp_realm))) {
- tr_notice("tr_tids_req_hander: RP Realm (%s) not member of community (%s).", orig_req->rp_realm->buf, orig_req->comm->buf);
- tids_send_err_response(tids, orig_req, "RP APC membership error");
- return -1;
- }
- }
-
- /* Find the AAA server(s) for this request */
- if (NULL == (aaa_servers = tr_idp_aaa_server_lookup((TR_INSTANCE *)tids->cookie,
- orig_req->realm,
- orig_req->comm))) {
- tr_debug("tr_tids_req_handler: No AAA Servers for realm %s, defaulting.", orig_req->realm->buf);
- if (NULL == (aaa_servers = tr_default_server_lookup ((TR_INSTANCE *)tids->cookie,
- orig_req->comm))) {
- tr_notice("tr_tids_req_handler: No default AAA servers, discarded.");
- tids_send_err_response(tids, orig_req, "No path to AAA Server(s) for realm");
- return -1;
- }
- } else {
- /* if we aren't defaulting, check idp coi and apc membership */
- if (NULL == (tr_find_comm_idp(cfg_comm, fwd_req->realm))) {
- tr_notice("tr_tids_req_handler: IDP Realm (%s) not member of community (%s).", orig_req->realm->buf, orig_req->comm->buf);
- tids_send_err_response(tids, orig_req, "IDP community membership error");
- return -1;
- }
- if ( cfg_apc && (NULL == (tr_find_comm_idp(cfg_apc, fwd_req->realm)))) {
- tr_notice("tr_tids_req_handler: IDP Realm (%s) not member of APC (%s).", orig_req->realm->buf, orig_req->comm->buf);
- tids_send_err_response(tids, orig_req, "IDP APC membership error");
- return -1;
- }
- }
-
- /* send a TID request to the AAA server(s), and get the answer(s) */
- /* TBD -- Handle multiple servers */
-
- if (cfg_apc)
- expiration_interval = cfg_apc->expiration_interval;
- else expiration_interval = cfg_comm->expiration_interval;
- if (fwd_req->expiration_interval)
- fwd_req->expiration_interval = (expiration_interval < fwd_req->expiration_interval) ? expiration_interval : fwd_req->expiration_interval;
- else fwd_req->expiration_interval = expiration_interval;
- /* Create a TID client instance */
- if (NULL == (tidc = tidc_create())) {
- tr_crit("tr_tids_req_hander: Unable to allocate TIDC instance.");
- tids_send_err_response(tids, orig_req, "Memory allocation failure");
- return -1;
- }
- /* Use the DH parameters from the original request */
- /* TBD -- this needs to be fixed when we handle more than one req per conn */
- tidc->client_dh = orig_req->tidc_dh;
-
- /* Save information about this request for the response */
- resp_cookie.tr = tr;
- resp_cookie.orig_req = orig_req;
-
- /* Set-up TID connection */
- if (-1 == (fwd_req->conn = tidc_open_connection(tidc,
- aaa_servers->hostname->buf,
- TID_PORT,
- &(fwd_req->gssctx)))) {
- tr_notice("tr_tids_req_handler: Error in tidc_open_connection.");
- tids_send_err_response(tids, orig_req, "Can't open connection to next hop TIDS");
- return -1;
- };
-
- /* Send a TID request */
- if (0 > (rc = tidc_fwd_request(tidc, fwd_req, &tr_tidc_resp_handler, (void *)&resp_cookie))) {
- tr_notice("Error from tidc_fwd_request, rc = %d.", rc);
- tids_send_err_response(tids, orig_req, "Can't forward request to next hop TIDS");
- tid_req_free(orig_req);
- return -1;
- }
-
- tid_req_free(orig_req);
- return 0;
-}
-
-static int tr_tids_gss_handler(gss_name_t client_name, TR_NAME *gss_name,
- void *tr_in)
-{
- TR_RP_CLIENT *rp;
- TR_INSTANCE *tr = (TR_INSTANCE *) tr_in;
-
- if ((!client_name) || (!gss_name) || (!tr)) {
- tr_debug("tr_tidc_gss_handler: Bad parameters.");
- return -1;
- }
-
- /* look up the RP client matching the GSS name */
- if ((NULL == (rp = tr_rp_client_lookup(tr, gss_name)))) {
- tr_debug("tr_tids_gss_handler: Unknown GSS name %s", gss_name->buf);
- return -1;
- }
-
- /* Store the rp client in the TR_INSTANCE structure for now...
- * TBD -- fix me for new tasking model. */
- (tr)->rp_gss = rp;
- tr_debug("Client's GSS Name: %s", gss_name->buf);
-
- return 0;
-}
-
-
-
-/***** event loop management ****/
-
-/* struct for hanging on to a socket listener event */
-struct tr_socket_event {
- int sock_fd; /* the fd for the socket */
- struct event *ev; /* its event */
-};
-
-/* Allocate and set up the event base, return a pointer
- * to the new event_base or NULL on failure.
- * Does not currently enable thread-safe mode. */
-static struct event_base *tr_event_loop_init(void)
-{
- struct event_base *base=NULL;
-
- base=event_base_new();
- if (base==NULL) {
- tr_crit("Error initializing event loop.");
- return NULL;
- }
- return base;
-}
-
-/* run the loop, does not normally return */
-static int tr_event_loop_run(struct event_base *base)
-{
- return event_base_dispatch(base);
-}
-
-/* called when a connection to the TIDS port is received */
-static void tr_tids_event_cb(int listener, short event, void *arg)
-{
- TIDS_INSTANCE *tids = (TIDS_INSTANCE *)arg;
-
- if (0==(event & EV_READ))
- tr_debug("tr_tids_event_cb: unexpected event on TIDS socket (event=0x%X)", event);
- else
- tids_accept(tids, listener);
-}
-
-/* Configure the tids instance and set up its event handler.
- * Returns 0 on success, nonzero on failure. Fills in
- * *tids_event (which should be allocated). */
-static int tr_tids_event_init(struct event_base *base,
- TR_INSTANCE *tr,
- struct tr_socket_event *tids_ev)
-{
- if (tids_ev == NULL) {
- tr_debug("tr_tids_event_init: Null tids_ev.");
- return 1;
- }
-
- /* get a tids listener */
- tids_ev->sock_fd=tids_get_listener(tr->tids,
- tr_tids_req_handler,
- tr_tids_gss_handler,
- tr->active_cfg->internal->hostname,
- tr->active_cfg->internal->tids_port,
- (void *)tr);
- if (tids_ev->sock_fd < 0) {
- tr_crit("Error opening TID server socket.");
- return 1;
- }
-
- /* and its event */
- tids_ev->ev=event_new(base,
- tids_ev->sock_fd,
- EV_READ|EV_PERSIST,
- tr_tids_event_cb,
- (void *)tr->tids);
- event_add(tids_ev->ev, NULL);
-
- return 0;
-}
-
-
-/***** config file watching *****/
-
-struct tr_fstat {
- char *name;
- struct timespec mtime;
-};
-
-struct tr_cfgwatch_data {
- struct timeval poll_interval; /* how often should we check for updates? */
- struct timeval settling_time; /* how long should we wait for changes to settle before updating? */
- char *config_dir; /* what directory are we watching? */
- struct tr_fstat *fstat_list; /* file names and mtimes */
- int n_files; /* number of files in fstat_list */
- int change_detected; /* have we detected a change? */
- struct timeval last_change_detected; /* when did we last note a changed mtime? */
- TALLOC_CTX *ctx; /* what context should own configuration talloc blocks? */
- TR_INSTANCE *tr; /* what trust router are we updating? */
-};
-typedef struct tr_cfgwatch_data TR_CFGWATCH;
-
-/* Initialize a new tr_cfgwatch_data struct. Free this with talloc. */
-static TR_CFGWATCH *tr_cfgwatch_create(TALLOC_CTX *mem_ctx)
-{
- TALLOC_CTX *tmp_ctx=talloc_new(NULL);
- TR_CFGWATCH *new_cfg;
-
- new_cfg=talloc(tmp_ctx, TR_CFGWATCH);
- if (new_cfg == NULL) {
- tr_debug("tr_cfgwatch_create: Allocation failed.");
- } else {
- timerclear(&new_cfg->poll_interval);
- timerclear(&new_cfg->settling_time);
- new_cfg->config_dir=NULL;
- new_cfg->fstat_list=NULL;
- new_cfg->n_files=0;
- new_cfg->change_detected=0;
- timerclear(&new_cfg->last_change_detected);
- new_cfg->ctx=NULL;
- new_cfg->tr=NULL;
- }
-
- talloc_steal(mem_ctx, new_cfg);
- talloc_free(tmp_ctx);
- return new_cfg;
-}
-
-/* Obtain the file modification time as seconds since epoch. Returns 0 on success. */
-static int tr_get_mtime(const char *path, struct timespec *ts)
-{
- struct stat file_status;
-
- if (stat(path, &file_status) != 0) {
- return -1;
- } else {
- (*ts)=file_status.st_mtim;
- }
- return 0;
-}
-
-static char *tr_join_paths(TALLOC_CTX *mem_ctx, const char *p1, const char *p2)
-{
- return talloc_asprintf(mem_ctx, "%s/%s", p1, p2); /* returns NULL on a failure */
-}
-
-static int tr_fstat_namecmp(const void *p1_arg, const void *p2_arg)
-{
- struct tr_fstat *p1=(struct tr_fstat *) p1_arg;
- struct tr_fstat *p2=(struct tr_fstat *) p2_arg;
-
- return strcmp(p1->name, p2->name);
-}
-
-static int tr_fstat_mtimecmp(const void *p1_arg, const void *p2_arg)
-{
- struct tr_fstat *p1=(struct tr_fstat *) p1_arg;
- struct tr_fstat *p2=(struct tr_fstat *) p2_arg;
-
- if (p1->mtime.tv_sec == p2->mtime.tv_sec)
- return (p1->mtime.tv_nsec) - (p2->mtime.tv_nsec);
- else
- return (p1->mtime.tv_sec) - (p2->mtime.tv_sec);
-}
-
-/* Get status of all files in cfg_files. Returns list, or NULL on error.
- * Files are sorted by filename.
- * After success, caller must eventually free result with talloc_free. */
-static struct tr_fstat *tr_fstat_get_all(TALLOC_CTX *mem_ctx,
- const char *config_path,
- struct dirent **cfg_files,
- int n_files)
-{
- TALLOC_CTX *tmp_ctx=talloc_new(NULL);
- struct tr_fstat *fstat_list=NULL;
- int ii=0;
-
- /* create a new fstat list (may be discarded) */
- fstat_list=talloc_array(tmp_ctx, struct tr_fstat, n_files);
- if (fstat_list==NULL) {
- tr_err("tr_fstat_get_all: Could not allocate fstat list.");
- goto cleanup;
- }
-
- for (ii=0; ii<n_files; ii++) {
- fstat_list[ii].name=talloc_strdup(fstat_list, cfg_files[ii]->d_name);
- if (0 != tr_get_mtime(tr_join_paths(tmp_ctx, config_path, fstat_list[ii].name),
- &(fstat_list[ii].mtime))) {
- tr_warning("tr_fstat_get_all: Could not obtain mtime for file %s", fstat_list[ii].name);
- }
- }
-
- /* sort the list */
- qsort(fstat_list, n_files, sizeof(struct tr_fstat), tr_fstat_namecmp);
-
- /* put list in the caller's context and return it */
- talloc_steal(mem_ctx, fstat_list);
- cleanup:
- talloc_free(tmp_ctx);
- return fstat_list;
-}
-
-/* must specify the ctx and tr in cfgwatch! */
-static int tr_read_and_apply_config(TR_CFGWATCH *cfgwatch)
-{
- TALLOC_CTX *tmp_ctx=talloc_new(NULL);
- char *config_dir=cfgwatch->config_dir;
- int n_files = 0;
- struct dirent **cfg_files=NULL;
- TR_CFG_RC rc = TR_CFG_SUCCESS; /* presume success */
- struct tr_fstat *new_fstat_list=NULL;
- int retval=0;
-
- /* find the configuration files -- n.b., tr_find_config_files()
- * allocates memory to cfg_files which we must later free */
- tr_debug("Reading configuration files from %s/", config_dir);
- n_files = tr_find_config_files(config_dir, &cfg_files);
- if (n_files <= 0) {
- tr_debug("tr_read_and_apply_config: No configuration files.");
- retval=1; goto cleanup;
- }
-
- /* Get the list of update times.
- * Do this before loading in case they change between obtaining their timestamp
- * and reading the file---this way they will immediately reload if this happens. */
- new_fstat_list=tr_fstat_get_all(tmp_ctx, config_dir, cfg_files, n_files);
- if (new_fstat_list==NULL) {
- tr_debug("tr_read_and_apply_config: Could not allocate config file status list.");
- retval=1; goto cleanup;
- }
-
- if (TR_CFG_SUCCESS != tr_parse_config(cfgwatch->tr, config_dir, n_files, cfg_files)) {
- tr_debug("tr_read_and_apply_config: Error decoding configuration information.");
- retval=1; goto cleanup;
- }
-
- /* apply initial configuration */
- if (TR_CFG_SUCCESS != (rc = tr_apply_new_config(cfgwatch->tr))) {
- tr_debug("tr_read_and_apply_config: Error applying configuration, rc = %d.", rc);
- retval=1; goto cleanup;
- }
-
- /* give ownership of the new_fstat_list to caller's context */
- if (cfgwatch->fstat_list != NULL) {
- /* free the old one */
- talloc_free(cfgwatch->fstat_list);
- }
- cfgwatch->n_files=n_files;
- cfgwatch->fstat_list=new_fstat_list;
- talloc_steal(cfgwatch->ctx, new_fstat_list);
- new_fstat_list=NULL;
-
- cleanup:
- tr_free_config_file_list(n_files, &cfg_files);
- talloc_free(tmp_ctx);
- return retval;
-}
-
-
-/* Checks whether any config files have appeared/disappeared/modified.
- * Returns 1 if so, 0 otherwise. */
-static int tr_cfgwatch_update_needed(TR_CFGWATCH *cfg_status)
-{
- TALLOC_CTX *tmp_ctx=talloc_new(NULL);
- struct tr_fstat *fstat_list=NULL;
- int n_files=0;
- int ii=0;
- struct dirent **cfg_files=NULL;
- int update_needed=0; /* return value */
-
- /* get the list, must free cfg_files later with tr_free_cfg_file_list */
- n_files = tr_find_config_files(cfg_status->config_dir, &cfg_files);
- if (n_files <= 0) {
- tr_warning("tr_cfgwatch_update: configuration files disappeared, skipping update.");
- goto cleanup;
- }
-
- /* create a new fstat list (will be discarded) */
- fstat_list=tr_fstat_get_all(tmp_ctx, cfg_status->config_dir, cfg_files, n_files);
- if (fstat_list==NULL) {
- tr_err("tr_cfgwatch_update: Error getting fstat list.");
- goto cleanup;
- }
-
- /* see if the number of files change, if so need to update */
- if (n_files != cfg_status->n_files) {
- tr_debug("tr_cfgwatch_update: Changed number of config files (was %d, now %d).",
- cfg_status->n_files,
- n_files);
- update_needed=1;
- talloc_free(cfg_status->fstat_list);
- cfg_status->n_files=n_files;
- cfg_status->fstat_list=fstat_list;
- talloc_steal(cfg_status->ctx, fstat_list);
- goto cleanup;
- }
-
- /* See if any files have a changed mtime. Both are sorted by name so this is easy. */
- for (ii=0; ii<n_files; ii++) {
- if ((0 != tr_fstat_mtimecmp(&fstat_list[ii], &cfg_status->fstat_list[ii]))
- || (0 != tr_fstat_namecmp(&fstat_list[ii], &cfg_status->fstat_list[ii]))){
- update_needed=1;
- talloc_free(cfg_status->fstat_list);
- cfg_status->n_files=n_files;
- cfg_status->fstat_list=fstat_list;
- talloc_steal(cfg_status->ctx, fstat_list);
- goto cleanup;
- }
- }
-
- cleanup:
- tr_free_config_file_list(n_files, &cfg_files);
- talloc_free(tmp_ctx);
- return update_needed;
-}
-
-static void tr_cfgwatch_event_cb(int listener, short event, void *arg)
-{
- TR_CFGWATCH *cfg_status=(TR_CFGWATCH *) arg;
- struct timeval now, diff;;
-
- if (tr_cfgwatch_update_needed(cfg_status)) {
- tr_notice("Configuration file change detected, waiting for changes to settle.");
- /* if (!cfg_status->change_detected) {*/
- cfg_status->change_detected=1;
-
- if (0 != gettimeofday(&cfg_status->last_change_detected, NULL)) {
- tr_err("tr_cfgwatch_event_cb: gettimeofday() failed (1).");
- /* }*/
- }
- }
-
- if (cfg_status->change_detected) {
- if (0 != gettimeofday(&now, NULL)) {
- tr_err("tr_cfgwatch_event_cb: gettimeofday() failed (2).");
- }
- timersub(&now, &cfg_status->last_change_detected, &diff);
- if (!timercmp(&diff, &cfg_status->settling_time, <)) {
- tr_notice("Configuration file change settled, updating configuration.");
- if (0 != tr_read_and_apply_config(cfg_status))
- tr_warning("Configuration file update failed. Using previous configuration.");
- else
- tr_notice("Configuration updated successfully.");
- cfg_status->change_detected=0;
- }
- }
-}
+#define TALLOC_DEBUG_ENABLE 1
+/***** command-line option handling / setup *****/
-/* Configure the cfgwatch instance and set up its event handler.
- * Returns 0 on success, nonzero on failure. Points
- * *cfgwatch_ev to the event struct. */
-static int tr_cfgwatch_event_init(struct event_base *base,
- TR_CFGWATCH *cfg_status,
- struct event **cfgwatch_ev)
+static void print_version_info(void)
{
- if (cfgwatch_ev == NULL) {
- tr_debug("tr_cfgwatch_event_init: Null cfgwatch_ev.");
- return 1;
- }
-
- /* zero out the change detection fields */
- cfg_status->change_detected=0;
- cfg_status->last_change_detected.tv_sec=0;
- cfg_status->last_change_detected.tv_usec=0;
-
- /* create the event and enable it */
- *cfgwatch_ev=event_new(base, -1, EV_TIMEOUT|EV_PERSIST, tr_cfgwatch_event_cb, (void *)cfg_status);
- event_add(*cfgwatch_ev, &(cfg_status->poll_interval));
-
- tr_info("tr_cfgwatch_event_init: Added configuration file watcher with %0d.%06d second poll interval.",
- cfg_status->poll_interval.tv_sec,
- cfg_status->poll_interval.tv_usec);
- return 0;
+ printf("Moonshot Trust Router %s\n\n", PACKAGE_VERSION);
}
-
-/***** command-line option handling / setup *****/
-
/* Strip trailing / from a path name.*/
static void remove_trailing_slash(char *s) {
size_t n;
const char *argp_program_bug_address=PACKAGE_BUGREPORT; /* bug reporting address */
/* doc strings */
-static const char doc[]=PACKAGE_NAME " - Moonshot Trust Router";
+static const char doc[]=PACKAGE_NAME " - Moonshot Trust Router " PACKAGE_VERSION;
static const char arg_doc[]=""; /* string describing arguments, if any */
/* define the options here. Fields are:
* { long-name, short-name, variable name, options, help description } */
static const struct argp_option cmdline_options[] = {
{ "config-dir", 'c', "DIR", 0, "Specify configuration file location (default is current directory)"},
+ { "config-validate", 'C', NULL, 0, "Validate configuration files and exit"},
+ { "version", 1, NULL, 0, "Print version information and exit"},
{ NULL }
};
/* structure for communicating with option parser */
struct cmdline_args {
- char *config_dir;
+ int version_requested;
+ int validate_config_and_exit;
+ char *config_dir;
};
/* parser for individual options - fills in a struct cmdline_args */
struct cmdline_args *arguments=state->input;
switch (key) {
- case 'c':
- if (arg == NULL) {
- /* somehow we got called without an argument */
- return ARGP_ERR_UNKNOWN;
- }
- arguments->config_dir=arg;
- break;
+ case 'c':
+ if (arg == NULL) {
+ /* somehow we got called without an argument */
+ return ARGP_ERR_UNKNOWN;
+ }
+ arguments->config_dir=arg;
+ break;
- default:
- return ARGP_ERR_UNKNOWN;
+ case 1:
+ arguments->version_requested=1;
+ break;
+
+ case 'C':
+ arguments->validate_config_and_exit=1;
+ break;
+
+ default:
+ return ARGP_ERR_UNKNOWN;
}
return 0; /* success */
static struct argp argp = {cmdline_options, parse_option, arg_doc, doc};
-int main (int argc, char *argv[])
+/***** talloc error handling *****/
+/* called when talloc tries to abort */
+static void tr_abort(const char *reason)
+{
+ tr_crit("tr_abort: Critical error, talloc aborted. Reason: %s", reason);
+ abort();
+}
+
+#if TALLOC_DEBUG_ENABLE
+static void tr_talloc_log(const char *msg)
+{
+ tr_debug("talloc: %s", msg);
+}
+#endif /* TALLOC_DEBUG_ENABLE */
+
+static void configure_signals(void)
+{
+ sigset_t signals;
+ /* ignore SIGPIPE */
+ sigemptyset(&signals);
+ sigaddset(&signals, SIGPIPE);
+ pthread_sigmask(SIG_BLOCK, &signals, NULL);
+}
+int main(int argc, char *argv[])
{
- TALLOC_CTX *main_ctx=talloc_new(NULL);
+ TALLOC_CTX *main_ctx=NULL;
TR_INSTANCE *tr = NULL;
struct cmdline_args opts;
struct event_base *ev_base;
- struct tr_socket_event tids_ev;
+ struct tr_socket_event tids_ev = {0};
+ struct tr_socket_event mon_ev = {0};
struct event *cfgwatch_ev;
- TR_CFGWATCH *cfgwatch; /* config file watcher status */
+
+ configure_signals();
+
+ /* we're going to be multithreaded, so disable null context tracking */
+ talloc_set_abort_fn(tr_abort);
+ talloc_disable_null_tracking();
+#if TALLOC_DEBUG_ENABLE
+ talloc_set_log_fn(tr_talloc_log);
+#endif /* TALLOC_DEBUG_ENABLE */
+ main_ctx=talloc_new(NULL);
/* Use standalone logging */
tr_log_open();
/***** parse command-line arguments *****/
/* set defaults */
+ opts.version_requested=0;
+ opts.validate_config_and_exit=0;
opts.config_dir=".";
/* parse the command line*/
/* process options */
remove_trailing_slash(opts.config_dir);
- /* Get a configuration status object */
- cfgwatch=tr_cfgwatch_create(main_ctx);
- if (cfgwatch == NULL) {
- tr_error("Unable to create configuration watcher object, exiting.");
- return 1;
- }
-
+
+ /***** Print version info *****/
+ print_version_info();
+ if (opts.version_requested)
+ return 0; /* requested that we print version and exit */
+
/***** create a Trust Router instance *****/
- if (NULL == (tr = tr_create())) {
+ if (NULL == (tr = tr_create(main_ctx))) {
tr_crit("Unable to create Trust Router instance, exiting.");
return 1;
}
+ /***** initialize the trust path query server instance *****/
+ if (NULL == (tr->tids = tids_new(tr))) {
+ tr_crit("Error initializing Trust Path Query Server instance.");
+ return 1;
+ }
+
+ /***** initialize the trust router protocol server instance *****/
+ if (NULL == (tr->trps = trps_new(tr))) {
+ tr_crit("Error initializing Trust Router Protocol Server instance.");
+ return 1;
+ }
+
+ /***** initialize the monitoring interface instance *****/
+ if (NULL == (tr->mons = mons_new(tr))) {
+ tr_crit("Error initializing monitoring interface instance.");
+ return 1;
+ }
+ /* Monitor our tids/trps instances */
+ tr->mons->tids = tr->tids;
+ tr->mons->trps = tr->trps;
+
/***** process configuration *****/
- cfgwatch->config_dir=opts.config_dir;
- cfgwatch->ctx=main_ctx;
- cfgwatch->tr=tr;
- if (0 != tr_read_and_apply_config(cfgwatch)) {
+ tr->cfgwatch=tr_cfgwatch_create(tr);
+ if (tr->cfgwatch == NULL) {
+ tr_crit("Unable to create configuration watcher object, exiting.");
+ return 1;
+ }
+ tr->cfgwatch->config_dir=opts.config_dir;
+ tr->cfgwatch->cfg_mgr=tr->cfg_mgr;
+ tr->cfgwatch->update_cb=tr_config_changed; /* handle configuration changes */
+ tr->cfgwatch->update_cookie=(void *)tr;
+ if (0 != tr_read_and_apply_config(tr->cfgwatch)) {
tr_crit("Error reading configuration, exiting.");
return 1;
}
- /***** initialize the trust path query server instance *****/
- if (0 == (tr->tids = tids_create ())) {
- tr_crit("Error initializing Trust Path Query Server instance.");
- exit(1);
+ /***** Exit here if we are just validating our configuration *****/
+ if (opts.validate_config_and_exit) {
+ printf("Valid configuration found in %s.\n", opts.config_dir);
+ return 0;
}
-
/***** Set up the event loop *****/
ev_base=tr_event_loop_init(); /* Set up the event loop */
+ if (ev_base==NULL) {
+ tr_crit("Error initializing event loop.");
+ return 1;
+ }
- /* install configuration file watching events */
- cfgwatch->poll_interval=(struct timeval) {1,0}; /* set poll interval in {sec, usec} */
- cfgwatch->settling_time=(struct timeval) {5,0}; /* delay for changes to settle before updating */
-
/* already set config_dir, fstat_list and n_files earlier */
- if (0 != tr_cfgwatch_event_init(ev_base, cfgwatch, &cfgwatch_ev)) {
+ if (0 != tr_cfgwatch_event_init(ev_base, tr->cfgwatch, &cfgwatch_ev)) {
tr_crit("Error initializing configuration file watcher.");
- exit(1);
+ return 1;
}
- /*tr_status_event_init();*/ /* install status reporting events */
+ /* install monitoring interface events */
+ tr_debug("Initializing monitoring interface events.");
+ if (0 != tr_mons_event_init(ev_base, tr->mons, tr->cfg_mgr, &mon_ev)) {
+ tr_crit("Error initializing monitoring interface.");
+ return 1;
+ }
/* install TID server events */
- if (0 != tr_tids_event_init(ev_base, tr, &tids_ev)) {
+ tr_debug("Initializing TID server events.");
+ if (0 != tr_tids_event_init(ev_base,
+ tr->tids,
+ tr->cfg_mgr,
+ tr->trps,
+ &tids_ev)) {
tr_crit("Error initializing Trust Path Query Server instance.");
- exit(1);
+ return 1;
}
- /*tr_trp_event_init();*/ /* install TRP handler events */
+ /* install TRP handler events */
+ tr_debug("Initializing Dynamic Trust Router Protocol events.");
+ if (TRP_SUCCESS != tr_trps_event_init(ev_base, tr)) {
+ tr_crit("Error initializing Trust Path Query Server instance.");
+ return 1;
+ }
- fflush(stdout); fflush(stderr);
+ tr_debug("Starting event loop.");
tr_event_loop_run(ev_base); /* does not return until we are done */
- /* TODO: update the cleanup code */
- tids_destroy(tr->tids);
- tr_destroy(tr);
+ tr_destroy(tr); /* thanks to talloc, should destroy everything */
talloc_free(main_ctx);
- exit(0);
+ return 0;
}
projects / trust_router.git / blobdiff