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37 #include <trust_router/tr_dh.h>
41 #include <tr_gss_client.h>
43 TR_GSSC_INSTANCE *tr_gssc_instance_new(TALLOC_CTX *mem_ctx)
45 TR_GSSC_INSTANCE *gssc=talloc(NULL, TR_GSSC_INSTANCE);
47 gssc->service_name = NULL;
49 gssc->gss_ctx = talloc(gssc, gss_ctx_id_t);
50 if (gssc->gss_ctx == NULL) {
58 void tr_gssc_instance_free(TR_GSSC_INSTANCE *tr_gssc)
64 * Open a connection to the requested server:port
66 * @param gssc client instance
67 * @param server server name/address
68 * @param port TCP port to connect
69 * @return 0 on success, -1 on failure
71 int tr_gssc_open_connection(TR_GSSC_INSTANCE *gssc, const char *server, unsigned int port)
73 tr_debug("tr_gssc_open_connection: opening connection to %s:%d", server, port);
74 if (0 != gsscon_connect(server, port, gssc->service_name, &(gssc->conn), gssc->gss_ctx))
77 return 0; /* success */
81 * Send a request message and retrieve a response message
86 * @return decoded message, or null on error
88 TR_MSG *tr_gssc_exchange_msgs(TALLOC_CTX *mem_ctx, TR_GSSC_INSTANCE *gssc, TR_MSG *req_msg)
90 TALLOC_CTX *tmp_ctx = talloc_new(NULL);
92 char *resp_buf = NULL;
93 size_t resp_buflen = 0;
94 TR_MSG *resp_msg = NULL; /* this is the return value */
98 if ((gssc == NULL) || (req_msg == NULL))
101 /* Encode the request into a json string */
102 if (!(req_buf = tr_msg_encode(tmp_ctx, req_msg))) {
103 tr_err("tr_gssc_exchange_msgs: Error encoding request message.\n");
107 tr_debug( "tr_gssc_exchange_msgs: Sending request message:\n%s\n", req_buf);
109 /* Send the request over the connection */
110 err = gsscon_write_encrypted_token(gssc->conn, *(gssc->gss_ctx), req_buf, strlen(req_buf));
112 tr_err( "tr_gssc_exchange_msgs: Error sending request.\n");
116 /* Read the response from the connection */
117 /* TBD -- timeout? */
118 if (gsscon_read_encrypted_token(gssc->conn, *(gssc->gss_ctx), &resp_buf, &resp_buflen))
121 tr_debug( "tr_gssc_exchange_msgs: Response Received (%u bytes).\n%s\n", (unsigned) resp_buflen, resp_buf);
122 resp_msg = tr_msg_decode(mem_ctx, resp_buf, resp_buflen);
125 if (resp_msg == NULL) {
126 tr_err( "tr_gssc_exchange_msgs: Error decoding response.\n");
130 /* If we get here, then we decoded the message and resp_msg is not null. Nothing more to do. */
133 talloc_free(tmp_ctx);