#include <jansson.h>
#include <tr.h>
+#include <tr_filter.h>
#include <trust_router/tid.h>
#include <tr_config.h>
#include <tr_comm.h>
#include <tr_idp.h>
+#include <tr_rp.h>
/* Structure to hold TR instance and original request in one cookie */
typedef struct tr_resp_cookie {
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)
{
- fprintf(stderr, "tr_tidc_resp_handler: Response received! Realm = %s, Community = %s.\n", resp->realm->buf, resp->comm->buf);
+ fprintf(stderr, "tr_tidc_resp_handler: Response received (conn = %d)! Realm = %s, Community = %s.\n", ((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->conn, &((TR_RESP_COOKIE *)resp_cookie)->orig_req->gssctx, resp);
+ 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,
+static int tr_tids_req_handler (TIDS_INSTANCE *tids,
TID_REQ *orig_req,
TID_RESP **resp,
void *tr)
TR_RESP_COOKIE resp_cookie;
TR_AAA_SERVER *aaa_servers = NULL;
TR_NAME *apc = NULL;
- TID_REQ *req = NULL;
+ TID_REQ *fwd_req = NULL;
TR_COMM *cfg_comm = NULL;
- int rc;
+ TR_COMM *cfg_apc = NULL;
+ TR_CONSTRAINT *ocons = NULL;
+ int oaction = TR_FILTER_ACTION_REJECT;
+ int rc = 0;
- if ((!tids) || (!orig_req) || (!resp) || (!(*resp))) {
- printf("tids_req_handler: Bad parameters\n");
+ if ((!tids) || (!orig_req) || (!resp) || (!(*resp)) || (!tr)) {
+ fprintf(stderr, "tids_req_handler: Bad parameters\n");
return -1;
}
- printf("Request received! Realm = %s, Comm = %s\n", orig_req->realm->buf, orig_req->comm->buf);
+ fprintf(stdout, "tr_tids_req_handler: Request received (conn = %d)! Realm = %s, Comm = %s\n", orig_req->conn,
+ orig_req->realm->buf, orig_req->comm->buf);
if (tids)
tids->req_count++;
- /* Save tr and request info for the response */
- resp_cookie.tr = tr;
- resp_cookie.orig_req = req;
-
/* Duplicate the request, so we can modify and forward it */
- if (NULL == (req = tid_dup_req(orig_req))) {
+ if (NULL == (fwd_req = tid_dup_req(orig_req))) {
fprintf(stderr, "tr_tids_req_handler: Unable to duplicate request.\n");
return -1;
}
- /* Map the comm in the request from a COI to an APC, if needed */
- if (NULL == (cfg_comm = tr_comm_lookup((TR_INSTANCE *)tids->cookie, req->comm))) {
- fprintf(stderr, "tr_tids_req_hander: Request for unknown comm: %s.\n", req->comm->buf);
+ if (NULL == (cfg_comm = tr_comm_lookup((TR_INSTANCE *)tids->cookie, orig_req->comm))) {
+ fprintf(stderr, "tr_tids_req_hander: Request for unknown comm: %s.\n", orig_req->comm->buf);
+ tids_send_err_response(tids, orig_req, "Unknown community");
+ return -1;
}
- /* TBD -- check that the rp_realm is a member of the original community */
+ /* Check that the rp_realm matches the filter for the GSS name that
+ * was received. */
+ if ((!((TR_INSTANCE *)tr)->rp_gss) ||
+ (!((TR_INSTANCE *)tr)->rp_gss->filter)) {
+ fprintf(stderr, "tr_tids_req_handler: No GSS name for incoming request.\n");
+ 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_INSTANCE *)tr)->rp_gss->filter, NULL, &ocons, &oaction)) ||
+ (TR_FILTER_ACTION_REJECT == oaction)) {
+ fprintf(stderr, "tr_tids_req_handler: RP realm (%s) does not match RP Realm filter for GSS name\n");
+ tids_send_err_response(tids, orig_req, "RP Realm filter error");
+ }
+
+ /* TBD -- add constraints to request for further forwarding. */
+
+ /* Check that the rp_realm and target_realm are members of the community in the request */
+ if (NULL == (tr_find_comm_rp(cfg_comm, orig_req->rp_realm))) {
+ fprintf(stderr, "tr_tids_req_hander: RP Realm (%s) not member of community (%s).\n", orig_req->rp_realm->buf, orig_req->comm->buf);
+ tids_send_err_response(tids, orig_req, "RP COI membership error");
+ return -1;
+ }
+ if (NULL == (tr_find_comm_idp(cfg_comm, orig_req->realm))) {
+ fprintf(stderr, "tr_tids_req_hander: IDP Realm (%s) not member of APC (%s).\n", orig_req->realm->buf, orig_req->comm->buf);
+ tids_send_err_response(tids, orig_req, "IDP 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) {
+ fprintf(stderr, "tr_tids_req_handler: Community was a COI, switching.\n");
/* TBD -- In theory there can be more than one? How would that work? */
+ if ((!cfg_comm->apcs) || (!cfg_comm->apcs->id)) {
+ fprintf(stderr, "No valid APC for COI %s.\n", 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);
- req->orig_coi = req->comm;
- req->comm = apc;
+
+ /* Check that the APC is configured */
+ if (NULL == (cfg_apc = tr_comm_lookup((TR_INSTANCE *)tids->cookie, apc))) {
+ fprintf(stderr, "tr_tids_req_hander: Request for unknown comm: %s.\n", 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 and target_realm are members of this APC */
+ if (NULL == (tr_find_comm_rp(cfg_apc, orig_req->rp_realm))) {
+ fprintf(stderr, "tr_tids_req_hander: RP Realm (%s) not member of community (%s).\n", orig_req->rp_realm->buf, orig_req->comm->buf);
+ tids_send_err_response(tids, orig_req, "RP APC membership error");
+ return -1;
+ }
+ if (NULL == (tr_find_comm_idp(cfg_apc, orig_req->realm))) {
+ fprintf(stderr, "tr_tids_req_hander: IDP Realm (%s) not member of APC (%s).\n", orig_req->realm->buf, orig_req->comm->buf);
+ tids_send_err_response(tids, orig_req, "IDP APC membership error");
+ return -1;
+ }
}
/* Find the AAA server(s) for this request */
- aaa_servers = tr_idp_aaa_server_lookup((TR_INSTANCE *)tids->cookie, req->realm, apc);
+ if (NULL == (aaa_servers = tr_idp_aaa_server_lookup((TR_INSTANCE *)tids->cookie,
+ orig_req->realm,
+ orig_req->comm))) {
+ fprintf(stderr, "tr_tids_req_handler: No AAA Servers for realm %s.\n", orig_req->realm->buf);
+ tids_send_err_response(tids, orig_req, "No path to AAA Server(s) for realm");
+ return -1;
+ }
/* send a TID request to the AAA server(s), and get the answer(s) */
/* TBD -- Handle multiple servers */
/* Create a TID client instance */
if (NULL == (tidc = tidc_create())) {
fprintf(stderr, "tr_tids_req_hander: Unable to allocate TIDC instance.\n");
+ 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 = req->tidc_dh;
+ tidc->client_dh = orig_req->tidc_dh;
/* Save information about this request for the response */
resp_cookie.tr = tr;
- resp_cookie.orig_req = req;
+ resp_cookie.orig_req = orig_req;
/* Set-up TID connection */
/* TBD -- handle IPv6 Addresses */
- if (-1 == (req->conn = tidc_open_connection(tidc, inet_ntoa(aaa_servers->aaa_server_addr), &(req->gssctx)))) {
- printf("tr_tids_req_handler: Error in tidc_open_connection.\n");
+ if (-1 == (fwd_req->conn = tidc_open_connection(tidc,
+ inet_ntoa(aaa_servers->aaa_server_addr),
+ &(fwd_req->gssctx)))) {
+ fprintf(stderr, "tr_tids_req_handler: Error in tidc_open_connection.\n");
+ 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, req, &tr_tidc_resp_handler, (void *)&resp_cookie))) {
- printf("Error from tidc_fwd_request, rc = %d.\n", rc);
+ if (0 > (rc = tidc_fwd_request(tidc, fwd_req, &tr_tidc_resp_handler, (void *)&resp_cookie))) {
+ fprintf(stderr, "Error from tidc_fwd_request, rc = %d.\n", rc);
+ tids_send_err_response(tids, orig_req, "Can't forward request to next hop TIDS");
return -1;
}
return 0;
}
+static int tr_tids_gss_handler(gss_name_t client_name, TR_NAME *gss_name,
+ void *tr)
+{
+ TR_RP_CLIENT *rp;
+
+ if ((!client_name) || (!gss_name) || (!tr)) {
+ fprintf(stderr, "tr_tidc_gss_handler: Bad parameters.\n");
+ return -1;
+ }
+
+ /* look up the RP client matching the GSS name */
+ if ((NULL == (rp = tr_rp_client_lookup(tr, gss_name)))) {
+ fprintf(stderr, "tr_tids_gss_handler: Unknown GSS name %s\n", gss_name->buf);
+ return -1;
+ }
+
+ /* Store the rp client in the TR_INSTANCE structure for now...
+ * TBD -- fix me for new tasking model. */
+ ((TR_INSTANCE *)tr)->rp_gss = rp;
+ return 0;
+}
+
+
int main (int argc, const char *argv[])
{
TR_INSTANCE *tr = NULL;
/* initialize the trust path query server instance */
if (0 == (tr->tids = tids_create ())) {
- printf ("Error initializing Trust Path Query Server instance.\n");
+ fprintf (stderr, "Error initializing Trust Path Query Server instance.\n");
exit(1);
}
/* start the trust path query server, won't return unless fatal error. */
- if (0 != (err = tids_start(tr->tids, &tr_tids_req_handler, (void *)tr))) {
- printf ("Error from Trust Path Query Server, err = %d.\n", err);
+ if (0 != (err = tids_start(tr->tids, &tr_tids_req_handler, &tr_tids_gss_handler, (void *)tr))) {
+ fprintf (stderr, "Error from Trust Path Query Server, err = %d.\n", err);
exit(err);
}
projects / trust_router.git / blobdiff