monitor.h revision 323134 
1/* $OpenBSD: monitor.h,v 1.20 2016/09/28 16:33:07 djm Exp $ */
2
3/*
4 * Copyright 2002 Niels Provos <provos@citi.umich.edu>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#ifndef _MONITOR_H_
29#define _MONITOR_H_
30
31/* Please keep *_REQ_* values on even numbers and *_ANS_* on odd numbers */
32enum monitor_reqtype {
33	MONITOR_REQ_MODULI = 0, MONITOR_ANS_MODULI = 1,
34	MONITOR_REQ_FREE = 2,
35	MONITOR_REQ_AUTHSERV = 4,
36	MONITOR_REQ_SIGN = 6, MONITOR_ANS_SIGN = 7,
37	MONITOR_REQ_PWNAM = 8, MONITOR_ANS_PWNAM = 9,
38	MONITOR_REQ_AUTH2_READ_BANNER = 10, MONITOR_ANS_AUTH2_READ_BANNER = 11,
39	MONITOR_REQ_AUTHPASSWORD = 12, MONITOR_ANS_AUTHPASSWORD = 13,
40	MONITOR_REQ_BSDAUTHQUERY = 14, MONITOR_ANS_BSDAUTHQUERY = 15,
41	MONITOR_REQ_BSDAUTHRESPOND = 16, MONITOR_ANS_BSDAUTHRESPOND = 17,
42	MONITOR_REQ_SKEYQUERY = 18, MONITOR_ANS_SKEYQUERY = 19,
43	MONITOR_REQ_SKEYRESPOND = 20, MONITOR_ANS_SKEYRESPOND = 21,
44	MONITOR_REQ_KEYALLOWED = 22, MONITOR_ANS_KEYALLOWED = 23,
45	MONITOR_REQ_KEYVERIFY = 24, MONITOR_ANS_KEYVERIFY = 25,
46	MONITOR_REQ_KEYEXPORT = 26,
47	MONITOR_REQ_PTY = 28, MONITOR_ANS_PTY = 29,
48	MONITOR_REQ_PTYCLEANUP = 30,
49	MONITOR_REQ_SESSKEY = 32, MONITOR_ANS_SESSKEY = 33,
50	MONITOR_REQ_SESSID = 34,
51	MONITOR_REQ_RSAKEYALLOWED = 36, MONITOR_ANS_RSAKEYALLOWED = 37,
52	MONITOR_REQ_RSACHALLENGE = 38, MONITOR_ANS_RSACHALLENGE = 39,
53	MONITOR_REQ_RSARESPONSE = 40, MONITOR_ANS_RSARESPONSE = 41,
54	MONITOR_REQ_GSSSETUP = 42, MONITOR_ANS_GSSSETUP = 43,
55	MONITOR_REQ_GSSSTEP = 44, MONITOR_ANS_GSSSTEP = 45,
56	MONITOR_REQ_GSSUSEROK = 46, MONITOR_ANS_GSSUSEROK = 47,
57	MONITOR_REQ_GSSCHECKMIC = 48, MONITOR_ANS_GSSCHECKMIC = 49,
58	MONITOR_REQ_TERM = 50,
59
60	MONITOR_REQ_PAM_START = 100,
61	MONITOR_REQ_PAM_ACCOUNT = 102, MONITOR_ANS_PAM_ACCOUNT = 103,
62	MONITOR_REQ_PAM_INIT_CTX = 104, MONITOR_ANS_PAM_INIT_CTX = 105,
63	MONITOR_REQ_PAM_QUERY = 106, MONITOR_ANS_PAM_QUERY = 107,
64	MONITOR_REQ_PAM_RESPOND = 108, MONITOR_ANS_PAM_RESPOND = 109,
65	MONITOR_REQ_PAM_FREE_CTX = 110, MONITOR_ANS_PAM_FREE_CTX = 111,
66	MONITOR_REQ_AUDIT_EVENT = 112, MONITOR_REQ_AUDIT_COMMAND = 113,
67
68};
69
70struct monitor {
71	int			 m_recvfd;
72	int			 m_sendfd;
73	int			 m_log_recvfd;
74	int			 m_log_sendfd;
75	struct kex		**m_pkex;
76	pid_t			 m_pid;
77};
78
79struct monitor *monitor_init(void);
80void monitor_reinit(struct monitor *);
81
82struct Authctxt;
83void monitor_child_preauth(struct Authctxt *, struct monitor *);
84void monitor_child_postauth(struct monitor *);
85
86struct mon_table;
87int monitor_read(struct monitor*, struct mon_table *, struct mon_table **);
88
89/* Prototypes for request sending and receiving */
90void mm_request_send(int, enum monitor_reqtype, Buffer *);
91void mm_request_receive(int, Buffer *);
92void mm_request_receive_expect(int, enum monitor_reqtype, Buffer *);
93
94#endif /* _MONITOR_H_ */
95