* tunnel endpoints. It has less protocol overhead than IPSec in Tunnel
* mode and allows tunneling of every ETHER TYPE protocol (e.g.
* ethernet, ip, arp ...). satp directly includes cryptography and
- * message authentication based on the methodes used by SRTP. It is
+ * message authentication based on the methods used by SRTP. It is
* intended to deliver a generic, scaleable and secure solution for
* tunneling and relaying of packets of any protocol.
- *
*
- * Copyright (C) 2007-2010 Christian Pointner <equinox@anytun.org>
+ *
+ * Copyright (C) 2007-2014 Christian Pointner <equinox@anytun.org>
*
* This file is part of uAnytun.
*
*
* You should have received a copy of the GNU General Public License
* along with uAnytun. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of portions of this program with the
+ * OpenSSL library under certain conditions as described in each
+ * individual source file, and distribute linked combinations
+ * including the two.
+ * You must obey the GNU General Public License in all respects
+ * for all of the code used other than OpenSSL. If you modify
+ * file(s) with this exception, you may extend this exception to your
+ * version of the file(s), but you are not obligated to do so. If you
+ * do not wish to do so, delete this exception statement from your
+ * version. If you delete this exception statement from all source
+ * files in the program, then also delete it here.
*/
#ifndef UANYTUN_udp_h_INCLUDED
#include <sys/types.h>
#include <sys/socket.h>
-typedef struct sockaddr_storage udp_endpoint_t;
+typedef struct {
+ socklen_t len_;
+ struct sockaddr_storage addr_;
+} udp_endpoint_t;
struct udp_socket_struct {
int fd_;
+ unsigned int idx_;
udp_endpoint_t local_end_;
+ udp_endpoint_t remote_end_;
+ int remote_end_set_;
struct udp_socket_struct* next_;
};
typedef struct udp_socket_struct udp_socket_t;
struct udp_struct {
udp_socket_t* socks_;
udp_socket_t* active_sock_;
- udp_endpoint_t remote_end_;
- int remote_end_set_;
};
typedef struct udp_struct udp_t;
int udp_init(udp_t* sock, const char* local_addr, const char* port, resolv_addr_type_t resolv_type);
-int udp_init_fd_set(udp_t* sock, fd_set* set);
-int udp_set_remote(udp_t* sock, const char* remote_addr, const char* port, resolv_addr_type_t resolv_type);
-void udp_set_active_sock(udp_t* sock, int fd);
+int udp_fill_fd_set(udp_t* sock, fd_set* set);
+int udp_has_remote(udp_t* sock);
+int udp_resolv_remote(udp_t* sock, const char* remote_addr, const char* port, resolv_addr_type_t resolv_type);
+void udp_update_remote(udp_t* sock, int fd, udp_endpoint_t* remote);
void udp_close(udp_t* sock);
-char* udp_endpoint_to_string(udp_endpoint_t e);
-char* udp_get_remote_end_string(udp_t* sock);
+char* udp_endpoint_to_string(udp_endpoint_t* e);
int udp_read(udp_t* sock, int fd, u_int8_t* buf, u_int32_t len, udp_endpoint_t* remote_end);
int udp_write(udp_t* sock, u_int8_t* buf, u_int32_t len);