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
|
/*
* Dropbear - a SSH2 server
*
* Copyright (c) 2002,2003 Matt Johnston
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE. */
#ifndef DROPBEAR_CHANSESSION_H_
#define DROPBEAR_CHANSESSION_H_
#include "loginrec.h"
#include "channel.h"
#include "listener.h"
struct exitinfo {
int exitpid; /* -1 if not exited */
int exitstatus;
int exitsignal;
int exitcore;
};
struct ChanSess {
char * cmd; /* command to exec */
pid_t pid; /* child process pid */
/* command that was sent by the client, if authorized_keys command= or
dropbear -c was used */
char *original_command;
/* pty details */
int master; /* the master terminal fd*/
int slave;
char * tty;
char * term;
/* exit details */
struct exitinfo exit;
/* These are only set temporarily before forking */
/* Used to set $SSH_CONNECTION in the child session. */
char *connection_string;
/* Used to set $SSH_CLIENT in the child session. */
char *client_string;
#if DROPBEAR_X11FWD
struct Listener * x11listener;
int x11port;
char * x11authprot;
char * x11authcookie;
unsigned int x11screennum;
unsigned char x11singleconn;
#endif
#if DROPBEAR_SVR_AGENTFWD
struct Listener * agentlistener;
char * agentfile;
char * agentdir;
#endif
};
struct ChildPid {
pid_t pid;
struct ChanSess * chansess;
};
void addnewvar(const char* param, const char* var);
void cli_send_chansess_request(void);
void cli_tty_cleanup(void);
void cli_chansess_winchange(void);
#if DROPBEAR_CLI_NETCAT
void cli_send_netcat_request(void);
#endif
void svr_chansessinitialise(void);
void svr_chansess_checksignal(void);
extern const struct ChanType svrchansess;
struct SigMap {
int signal;
char* name;
};
extern const struct SigMap signames[];
#endif /* DROPBEAR_CHANSESSION_H_ */
|
