tor-android/external/badvpn_dns/misc/socks_proto.h

119 lines
3.3 KiB
C

/**
* @file socks_proto.h
* @author Ambroz Bizjak <ambrop7@gmail.com>
*
* @section LICENSE
*
* 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 the author 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 AUTHOR 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.
*
* @section DESCRIPTION
*
* Definitions for the SOCKS protocol.
*/
#ifndef BADVPN_MISC_SOCKS_PROTO_H
#define BADVPN_MISC_SOCKS_PROTO_H
#include <stdint.h>
#include <misc/packed.h>
#define SOCKS_VERSION 0x05
#define SOCKS_METHOD_NO_AUTHENTICATION_REQUIRED 0x00
#define SOCKS_METHOD_GSSAPI 0x01
#define SOCKS_METHOD_USERNAME_PASSWORD 0x02
#define SOCKS_METHOD_NO_ACCEPTABLE_METHODS 0xFF
#define SOCKS_CMD_CONNECT 0x01
#define SOCKS_CMD_BIND 0x02
#define SOCKS_CMD_UDP_ASSOCIATE 0x03
#define SOCKS_ATYP_IPV4 0x01
#define SOCKS_ATYP_DOMAINNAME 0x03
#define SOCKS_ATYP_IPV6 0x04
#define SOCKS_REP_SUCCEEDED 0x00
#define SOCKS_REP_GENERAL_FAILURE 0x01
#define SOCKS_REP_CONNECTION_NOT_ALLOWED 0x02
#define SOCKS_REP_NETWORK_UNREACHABLE 0x03
#define SOCKS_REP_HOST_UNREACHABLE 0x04
#define SOCKS_REP_CONNECTION_REFUSED 0x05
#define SOCKS_REP_TTL_EXPIRED 0x06
#define SOCKS_REP_COMMAND_NOT_SUPPORTED 0x07
#define SOCKS_REP_ADDRESS_TYPE_NOT_SUPPORTED 0x08
B_START_PACKED
struct socks_client_hello_header {
uint8_t ver;
uint8_t nmethods;
} B_PACKED;
B_END_PACKED
B_START_PACKED
struct socks_client_hello_method {
uint8_t method;
} B_PACKED;
B_END_PACKED
B_START_PACKED
struct socks_server_hello {
uint8_t ver;
uint8_t method;
} B_PACKED;
B_END_PACKED
B_START_PACKED
struct socks_request_header {
uint8_t ver;
uint8_t cmd;
uint8_t rsv;
uint8_t atyp;
} B_PACKED;
B_END_PACKED
B_START_PACKED
struct socks_reply_header {
uint8_t ver;
uint8_t rep;
uint8_t rsv;
uint8_t atyp;
} B_PACKED;
B_END_PACKED
B_START_PACKED
struct socks_addr_ipv4 {
uint32_t addr;
uint16_t port;
} B_PACKED;
B_END_PACKED
B_START_PACKED
struct socks_addr_ipv6 {
uint8_t addr[16];
uint16_t port;
} B_PACKED;
B_END_PACKED
#endif