+/*
+ * Copyright (c) 2012, JANET(UK)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of JANET(UK) nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <talloc.h>
+#include <argp.h>
+
+#include <gsscon.h>
+#include <tr_debug.h>
+#include <tr_trp.h>
+#include <trust_router/tr_dh.h>
+
+#if 0
+static void tidc_resp_handler (TIDC_INSTANCE * tidc,
+ TID_REQ *req,
+ TID_RESP *resp,
+ void *cookie)
+{
+ int c_keylen = 0;
+ unsigned char *c_keybuf = NULL;
+ int i;
+
+ printf ("Response received! Realm = %s, Community = %s.\n", resp->realm->buf, resp->comm->buf);
+
+ /* Generate the client key -- TBD, handle more than one server */
+ if (TID_SUCCESS != resp->result) {
+ fprintf(stderr, "tidc_resp_handler: Response is an error.\n");
+ return;
+ }
+
+ if (!resp->servers) {
+ fprintf(stderr, "tidc_resp_handler: Response does not contain server info.\n");
+ return;
+ }
+
+ if (0 > (c_keylen = tr_compute_dh_key(&c_keybuf,
+ resp->servers->aaa_server_dh->pub_key,
+ req->tidc_dh))) {
+
+ printf("tidc_resp_handler: Error computing client key.\n");
+ return;
+ }
+
+ /* Print out the client key. */
+ printf("Client Key Generated (len = %d):\n", c_keylen);
+ for (i = 0; i < c_keylen; i++) {
+ printf("%.2x", c_keybuf[i]);
+ }
+ printf("\n");
+
+ return;
+}
+#endif
+
+/* command-line option setup */
+
+/* argp global parameters */
+const char *argp_program_bug_address=PACKAGE_BUGREPORT; /* bug reporting address */
+
+/* doc strings */
+static const char doc[]=PACKAGE_NAME " - TRP Client";
+static const char arg_doc[]="<message> <server> [<port>]"; /* 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[] = {
+ { NULL }
+};
+
+/* structure for communicating with option parser */
+struct cmdline_args {
+ char *msg;
+ char *server;
+ int port; /* optional */
+};
+
+/* parser for individual options - fills in a struct cmdline_args */
+static error_t parse_option(int key, char *arg, struct argp_state *state)
+{
+ /* get a shorthand to the command line argument structure, part of state */
+ struct cmdline_args *arguments=state->input;
+
+ switch (key) {
+ case ARGP_KEY_ARG: /* handle argument (not option) */
+ switch (state->arg_num) {
+ case 0:
+ arguments->msg=arg;
+ break;
+
+ case 1:
+ arguments->server=arg;
+ break;
+
+ case 2:
+ arguments->port=strtol(arg, NULL, 10); /* optional */
+ break;
+
+ default:
+ /* too many arguments */
+ argp_usage(state);
+ }
+ break;
+
+ case ARGP_KEY_END: /* no more arguments */
+ if (state->arg_num < 2) {
+ /* not enough arguments encountered */
+ argp_usage(state);
+ }
+ break;
+
+ default:
+ return ARGP_ERR_UNKNOWN;
+ }
+
+ return 0; /* success */
+}
+
+/* assemble the argp parser */
+static struct argp argp = {cmdline_options, parse_option, arg_doc, doc};
+
+int main (int argc,
+ char *argv[])
+{
+ TALLOC_CTX *main_ctx=talloc_new(NULL);
+ TRPC_INSTANCE *trpc=NULL;
+ int conn = 0;
+ int rc;
+ gss_ctx_id_t gssctx;
+ struct cmdline_args opts;
+
+ /* parse the command line*/
+ /* set defaults */
+ opts.msg=NULL;
+ opts.server=NULL;
+ opts.port=TRP_PORT;
+
+ argp_parse(&argp, argc, argv, 0, 0, &opts);
+ /* TBD -- validity checking, dealing with quotes, etc. */
+
+ /* Use standalone logging */
+ tr_log_open();
+
+ /* set logging levels */
+ talloc_set_log_stderr();
+ tr_log_threshold(LOG_CRIT);
+ tr_console_threshold(LOG_DEBUG);
+
+ printf("TRPC Client:\nServer = %s, port = %i\n", opts.server, opts.port);
+
+ /* Create a TRP client instance & the client DH */
+ trpc = trpc_create(main_ctx);
+ if (NULL == (trpc->client_dh = tr_create_dh_params(NULL, 0))) {
+ printf("Error creating client DH params.\n");
+ return 1;
+ }
+
+ /* Set-up TRP connection */
+ if (-1 == (conn = trpc_open_connection(trpc, opts.server, opts.port, &gssctx))) {
+ /* Handle error */
+ printf("Error in trpc_open_connection.\n");
+ return 1;
+ };
+
+ /* Send a TRP message */
+ if (0 > (rc = trpc_send_msg(trpc, conn, gssctx, opts.msg, NULL, NULL))) {
+ /* Handle error */
+ printf("Error in trpc_send_request, rc = %d.\n", rc);
+ return 1;
+ }
+
+ /* Clean-up the TRP client instance, and exit */
+ trpc_destroy(trpc);
+
+ return 0;
+}
+