-/* See the file COPYING for licensing information. */
+/* Copyright 2010, 2011 NORDUnet A/S. All rights reserved.
+ See LICENSE for licensing information. */
#if defined HAVE_CONFIG_H
#include <config.h>
#endif
-#include <time.h>
+#include <stdint.h>
+#include <stdlib.h>
#include <assert.h>
+#include <sys/time.h>
#include <event2/event.h>
#include <radsec/radsec.h>
#include <radsec/radsec-impl.h>
#include <radsec/request.h>
#include <radsec/request-impl.h>
+#include <radius/client.h>
+#include "debug.h"
+#include "conn.h"
+#include "tcp.h"
+#include "udp.h"
+
+/* RFC 5080 2.2.1. Retransmission Behavior. */
+#define IRT 2
+#define MRC 5
+#define MRT 16
+#define MRD 30
+#define RAND 100 /* Rand factor, milliseconds. */
int
rs_request_create (struct rs_connection *conn, struct rs_request **req_out)
{
struct rs_request *req = rs_malloc (conn->ctx, sizeof(*req));
+ assert (req_out);
if (!req)
return rs_err_conn_push_fl (conn, RSE_NOMEM, __FILE__, __LINE__, NULL);
memset (req, 0, sizeof(*req));
}
void
-rs_request_destroy (struct rs_request *request)
+rs_request_add_reqpkt (struct rs_request *req, struct rs_packet *req_msg)
{
- rs_packet_destroy (request->req);
- rs_packet_destroy (request->resp);
- rs_free (request->conn->ctx, request);
+ assert (req);
+ req->req_msg = req_msg;
}
-#if 0
-static void
-_timer_cb(evutil_socket_t fd, short what, void *arg)
-
+int
+rs_request_create_authn (struct rs_connection *conn,
+ struct rs_request **req_out,
+ const char *user_name,
+ const char *user_pw,
+ const char *secret)
{
-}
-#endif
+ struct rs_request *req = NULL;
+ assert (req_out);
-static void
-_rs_req_connected(void *user_data)
-{
- //struct rs_request *request = (struct rs_request *)user_data;
-}
+ if (rs_request_create (conn, &req))
+ return -1;
-static void
-_rs_req_disconnected(void *user_data)
-{
- //struct rs_request *request = (struct rs_request *)user_data;
+ if (rs_packet_create_authn_request (conn, &req->req_msg, user_name, user_pw, secret))
+ return -1;
+
+ if (req_out)
+ *req_out = req;
+ return RSE_OK;
}
-static void
-_rs_req_packet_received(struct rs_packet *pkt, void *user_data)
+void
+rs_request_destroy (struct rs_request *request)
{
- //struct rs_request *request = (struct rs_request *)user_data;
+ assert (request);
+ assert (request->conn);
+ assert (request->conn->ctx);
+
+ if (request->req_msg)
+ rs_packet_destroy (request->req_msg);
+ rs_free (request->conn->ctx, request);
}
static void
-_rs_req_packet_sent(void *user_data)
+_rand_rt (struct timeval *res, uint32_t rtprev, uint32_t factor)
{
- //struct rs_request *request = (struct rs_request *)user_data;
+ uint32_t ms = rtprev * (nr_rand () % factor);
+ res->tv_sec = rtprev + ms / 1000;
+ res->tv_usec = (ms % 1000) * 1000;
}
int
-rs_request_send(struct rs_request *request, struct rs_packet *req,
- struct rs_packet **resp)
+rs_request_send (struct rs_request *request, struct rs_packet **resp_msg)
{
- int err;
- struct rs_connection *conn;
-
- assert (request);
- assert (request->conn);
+ int r = 0;
+ struct rs_connection *conn = NULL;
+ int count = 0;
+ struct timeval rt = {0,0};
+ struct timeval end = {0,0};
+ struct timeval now = {0,0};
+ struct timeval tmp_tv = {0,0};
+ const struct timeval mrt_tv = {MRT,0};
+
+ if (!request || !request->conn || !request->req_msg || !resp_msg)
+ return rs_err_conn_push_fl (conn, RSE_INVAL, __FILE__, __LINE__, NULL);
conn = request->conn;
+ assert (!conn_user_dispatch_p (conn)); /* This function is high level. */
+
+ gettimeofday (&end, NULL);
+ end.tv_sec += MRD;
+ _rand_rt (&rt, IRT, RAND);
+ while (1)
+ {
+ rs_conn_set_timeout (conn, &rt);
+
+ r = rs_packet_send (request->req_msg, NULL);
+ if (r == RSE_OK)
+ {
+ r = rs_conn_receive_packet (request->conn,
+ request->req_msg,
+ resp_msg);
+ if (r == RSE_OK)
+ break; /* Success. */
+
+ if (r != RSE_TIMEOUT_CONN && r != RSE_TIMEOUT_IO)
+ break; /* Error. */
+ }
+ else if (r != RSE_TIMEOUT_CONN && r != RSE_TIMEOUT_IO)
+ break; /* Error. */
+
+ gettimeofday (&now, NULL);
+ if (++count > MRC || timercmp (&now, &end, >))
+ {
+ r = RSE_TIMEOUT;
+ break; /* Timeout. */
+ }
+
+ /* rt = 2 * rt + rand_rt (rt, RAND); */
+ timeradd (&rt, &rt, &rt);
+ _rand_rt (&tmp_tv, IRT, RAND);
+ timeradd (&rt, &tmp_tv, &rt);
+ if (timercmp (&rt, &mrt_tv, >))
+ _rand_rt (&rt, MRT, RAND);
+ }
+
+ timerclear (&rt);
+ rs_conn_set_timeout (conn, &rt);
+
+ rs_debug (("%s: returning %d\n", __func__, r));
+ return r;
+}
- request->req = req; /* take ownership */
- request->saved_cb = conn->callbacks;
-
- conn->callbacks.connected_cb = _rs_req_connected;
- conn->callbacks.disconnected_cb = _rs_req_disconnected;
- conn->callbacks.received_cb = _rs_req_packet_received;
- conn->callbacks.sent_cb = _rs_req_packet_sent;
-
- err = rs_packet_send(request->req, request);
- if (err)
- goto cleanup;
-
- err = rs_conn_receive_packet(request->conn, request->req, resp);
- if (err)
- goto cleanup;
-
-cleanup:
- conn->callbacks = request->saved_cb;
- return err;
+struct rs_packet *
+rs_request_get_reqmsg (const struct rs_request *request)
+{
+ assert (request);
+ return request->req_msg;
}