89 lines
2.4 KiB
C
89 lines
2.4 KiB
C
/*************************************************************************
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*
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* Copyright (C) 2018-2023 Ruilin Peng (Nick) <pymumu@gmail.com>.
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*
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* smartdns is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* smartdns is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef SMART_DNS_PROXY_H
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#define SMART_DNS_PROXY_H
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#include <sys/socket.h>
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#include <sys/types.h>
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#define PROXY_MAX_IPLEN 256
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#define PROXY_MAX_NAMELEN 128
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#ifdef __cplusplus
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extern "C" {
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#endif /*__cplusplus */
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typedef enum {
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PROXY_SOCKS5,
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PROXY_HTTP,
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PROXY_TYPE_END,
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} proxy_type_t;
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typedef enum {
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PROXY_HANDSHAKE_ERR = -1,
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PROXY_HANDSHAKE_OK = 0,
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PROXY_HANDSHAKE_CONNECTED = 1,
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PROXY_HANDSHAKE_WANT_READ = 2,
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PROXY_HANDSHAKE_WANT_WRITE = 3,
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} proxy_handshake_state;
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struct proxy_info {
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proxy_type_t type;
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char server[PROXY_MAX_IPLEN];
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unsigned short port;
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int use_domain;
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char username[PROXY_MAX_NAMELEN];
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char password[PROXY_MAX_NAMELEN];
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};
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struct proxy_conn;
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int proxy_init(void);
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int proxy_exit(void);
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int proxy_add(const char *proxy_name, struct proxy_info *info);
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int proxy_remove(const char *proxy_name);
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struct proxy_conn *proxy_conn_new(const char *proxy_name, const char *host, int port, int is_udp);
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int proxy_conn_get_fd(struct proxy_conn *proxy_conn);
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int proxy_conn_get_udpfd(struct proxy_conn *proxy_conn);
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int proxy_conn_is_udp(struct proxy_conn *proxy_conn);
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void proxy_conn_free(struct proxy_conn *proxy_conn);
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int proxy_conn_connect(struct proxy_conn *proxy_conn);
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int proxy_conn_sendto(struct proxy_conn *proxy_conn, const void *buf, size_t len, int flags,
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const struct sockaddr *dest_addr, socklen_t addrlen);
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int proxy_conn_recvfrom(struct proxy_conn *proxy_conn, void *buf, size_t len, int flags, struct sockaddr *src_addr,
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socklen_t *addrlen);
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proxy_handshake_state proxy_conn_handshake(struct proxy_conn *proxy_conn);
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#ifdef __cplusplus
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}
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#endif /*__cplusplus */
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#endif
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