/*

* common.h - Provide global definitions

*

* Copyright (C) 2013 - 2019, Max Lv <max.c.lv@gmail.com>

*

* This file is part of the shadowsocks-libev.

* shadowsocks-libev is free software; you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation; either version 3 of the License, or

* (at your option) any later version.

*

* shadowsocks-libev is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with shadowsocks-libev; see the file COPYING. If not, see

* <http://www.gnu.org/licenses/>.

*/

#ifndef _COMMON_H

#define _COMMON_H

#ifndef SOL_TCP

#define SOL_TCP IPPROTO_TCP

#endif

#if defined(MODULE_TUNNEL) || defined(MODULE_REDIR)

#define MODULE_LOCAL

#endif

#include "crypto.h"

int init_udprelay(const char *server_host, const char *server_port,

#ifdef MODULE_LOCAL

const struct sockaddr *remote_addr, const int remote_addr_len,

#ifdef MODULE_TUNNEL

const ss_addr_t tunnel_addr,

#endif

#endif

int mtu, crypto_t *crypto, int timeout, const char *iface);

void free_udprelay(void);

#ifdef __ANDROID__

int protect_socket(int fd);

int send_traffic_stat(uint64_t tx, uint64_t rx);

#endif

#define STAGE_ERROR -1 /* Error detected */

#define STAGE_INIT 0 /* Initial stage */

#define STAGE_HANDSHAKE 1 /* Handshake with client */

#define STAGE_RESOLVE 4 /* Resolve the hostname */

#define STAGE_STREAM 5 /* Stream between client and server */

#define STAGE_STOP 6 /* Server stop to response */

/* Vals for long options */

enum {

GETOPT_VAL_HELP = 257,

GETOPT_VAL_REUSE_PORT,

GETOPT_VAL_FAST_OPEN,

GETOPT_VAL_NODELAY,

GETOPT_VAL_ACL,

GETOPT_VAL_MTU,

GETOPT_VAL_MPTCP,

GETOPT_VAL_PLUGIN,

GETOPT_VAL_PLUGIN_OPTS,

GETOPT_VAL_PASSWORD,

GETOPT_VAL_KEY,

GETOPT_VAL_MANAGER_ADDRESS,

GETOPT_VAL_EXECUTABLE,

GETOPT_VAL_WORKDIR,

};

#endif // _COMMON_H