/*
- * Copyright (c) 2012, JANET(UK)
+ * Copyright (c) 2012, 2015, JANET(UK)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
#include <jansson.h>
#include <tr.h>
-#include <trust_router/tid.h>
+#include <tr_filter.h>
+#include <tid_internal.h>
#include <tr_config.h>
+#include <tr_comm.h>
+#include <tr_idp.h>
+#include <tr_rp.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 int tids_req_handler (TIDS_INSTANCE * tids,
- TID_REQ *req,
- TID_RESP **resp,
- void *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)
{
- printf("Request received! Realm = %s, Comm = %s\n", req->realm->buf, req->comm->buf);
+ 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;
+
+ 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)
+ fwd_req->expiration_interval = cfg_apc->expiration_interval;
+ else fwd_req->expiration_interval = cfg_comm->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;
+}
+
+
int main (int argc, const char *argv[])
{
TR_INSTANCE *tr = NULL;
- TIDS_INSTANCE *tids = NULL;
struct dirent **cfg_files = NULL;
- json_t *jcfg = NULL;
TR_CFG_RC rc = TR_CFG_SUCCESS; /* presume success */
int err = 0, n = 0;;
- /* parse command-line arguments -- TBD */
+ /* parse command-line arguments? -- TBD */
+
+ /* Use standalone logging */
+ tr_log_open();
/* create a Trust Router instance */
if (NULL == (tr = tr_create())) {
- fprintf(stderr, "Unable to create Trust Router instance, exiting.\n");
+ tr_crit("Unable to create Trust Router instance, exiting.");
return 1;
}
/* find the configuration files */
if (0 == (n = tr_find_config_files(&cfg_files))) {
- fprintf (stderr, "Can't locate configuration files, exiting.\n");
+ tr_crit("Can't locate configuration files, exiting.");
exit(1);
}
- /* read and parse initial configuration */
- if (NULL == (jcfg = tr_read_config (n, cfg_files))) {
- fprintf (stderr, "Error reading or parsing configuration files, exiting.\n");
- exit(1);
- }
- if (TR_CFG_SUCCESS != tr_parse_config(tr, jcfg)) {
- fprintf (stderr, "Error decoding configuration information, exiting.\n");
+ if (TR_CFG_SUCCESS != tr_parse_config(tr, n, cfg_files)) {
+ tr_crit("Error decoding configuration information, exiting.");
exit(1);
}
/* apply initial configuration */
if (TR_CFG_SUCCESS != (rc = tr_apply_new_config(tr))) {
- fprintf (stderr, "Error applying configuration, rc = %d.\n", rc);
+ tr_crit("Error applying configuration, rc = %d.", rc);
exit(1);
}
/* initialize the trust path query server instance */
- if (0 == (tids = tids_create ())) {
- printf ("Error initializing Trust Path Query Server instance.\n");
- return 1;
+ if (0 == (tr->tids = tids_create ())) {
+ tr_crit("Error initializing Trust Path Query Server instance.");
+ exit(1);
}
- /* start the trust path query server, won't return unless error. */
- if (0 != (err = tids_start(tids, &tids_req_handler, NULL))) {
- printf ("Error starting Trust Path Query Server, err = %d.\n", err);
- return err;
+ /* start the trust path query server, won't return unless fatal error. */
+ if (0 != (err = tids_start(tr->tids, &tr_tids_req_handler, &tr_tids_gss_handler, tr->active_cfg->internal->hostname, tr->active_cfg->internal->tids_port, (void *)tr))) {
+ tr_crit("Error from Trust Path Query Server, err = %d.", err);
+ exit(err);
}
- tids_destroy(tids);
- return 0;
+ tids_destroy(tr->tids);
+ tr_destroy(tr);
+ exit(0);
}
projects / trust_router.git / blobdiff