1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
/***************************************************************************
core.h - description
-------------------
begin : Tue May 14 2002
copyright : netcreature (C) 2002
email : netcreature@users.sourceforge.net
***************************************************************************
***************************************************************************
* *
* This program 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 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include <unistd.h>
#include <stdint.h>
#include <netinet/in.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#ifndef __CORE_HEADER
#define __CORE_HEADER
#define MAX_LOCALNET 64
#define MAX_DNAT 64
#include "ip_type.h"
/*error codes*/
typedef enum {
SUCCESS=0,
MEMORY_FAIL, // malloc failed
SOCKET_ERROR, // look errno for more
CHAIN_DOWN, // no proxy in chain responds to tcp
CHAIN_EMPTY, // if proxy_count = 0
BLOCKED // target's port blocked on last proxy in the chain
} ERR_CODE;
typedef enum {
HTTP_TYPE,
SOCKS4_TYPE,
SOCKS5_TYPE,
RAW_TYPE
} proxy_type;
typedef enum {
DYNAMIC_TYPE,
STRICT_TYPE,
RANDOM_TYPE,
ROUND_ROBIN_TYPE
} chain_type;
typedef enum {
PLAY_STATE,
DOWN_STATE,
BLOCKED_STATE,
BUSY_STATE
} proxy_state;
typedef enum {
RANDOMLY,
FIFOLY
} select_type;
typedef struct {
sa_family_t family;
unsigned short port;
union {
struct {
struct in_addr in_addr;
struct in_addr in_mask;
};
struct {
struct in6_addr in6_addr;
unsigned char in6_prefix;
};
};
} localaddr_arg;
typedef struct {
struct in_addr orig_dst, new_dst;
unsigned short orig_port, new_port;
} dnat_arg;
typedef struct {
ip_type ip;
unsigned short port;
proxy_type pt;
proxy_state ps;
char user[256];
char pass[256];
} proxy_data;
int connect_proxy_chain (int sock, ip_type target_ip, unsigned short target_port,
proxy_data * pd, unsigned int proxy_count, chain_type ct,
unsigned int max_chain );
void proxychains_write_log(char *str, ...);
typedef int (*close_t)(int);
typedef int (*close_range_t)(unsigned, unsigned, int);
typedef int (*connect_t)(int, const struct sockaddr *, socklen_t);
typedef struct hostent* (*gethostbyname_t)(const char *);
typedef int (*freeaddrinfo_t)(struct addrinfo *);
typedef struct hostent *(*gethostbyaddr_t) (const void *, socklen_t, int);
typedef int (*getaddrinfo_t)(const char *, const char *, const struct addrinfo *,
struct addrinfo **);
typedef int (*getnameinfo_t) (const struct sockaddr *, socklen_t, char *,
GN_NODELEN_T, char *, GN_SERVLEN_T, GN_FLAGS_T);
typedef ssize_t (*sendto_t) (int sockfd, const void *buf, size_t len, int flags,
const struct sockaddr *dest_addr, socklen_t addrlen);
extern connect_t true_connect;
extern gethostbyname_t true_gethostbyname;
extern getaddrinfo_t true_getaddrinfo;
extern freeaddrinfo_t true_freeaddrinfo;
extern getnameinfo_t true_getnameinfo;
extern gethostbyaddr_t true_gethostbyaddr;
struct gethostbyname_data {
struct hostent hostent_space;
in_addr_t resolved_addr;
char *resolved_addr_p[2];
char addr_name[256];
};
struct hostent* proxy_gethostbyname(const char *name, struct gethostbyname_data *data);
struct hostent* proxy_gethostbyname_old(const char *name);
int proxy_getaddrinfo(const char *node, const char *service,
const struct addrinfo *hints, struct addrinfo **res);
void proxy_freeaddrinfo(struct addrinfo *res);
void core_initialize(void);
void core_unload(void);
#include "debug.h"
#endif
//RcB: DEP "core.c"
//RcB: DEP "libproxychains.c"
//RcB: LINK "-Wl,--no-as-needed -ldl -lpthread"
|
