monitor.h revision 181110 
1/* $OpenBSD: monitor.h,v 1.14 2006/03/25 22:22:43 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
31enum monitor_reqtype {
32	MONITOR_REQ_MODULI, MONITOR_ANS_MODULI,
33	MONITOR_REQ_FREE, MONITOR_REQ_AUTHSERV,
34	MONITOR_REQ_SIGN, MONITOR_ANS_SIGN,
35	MONITOR_REQ_PWNAM, MONITOR_ANS_PWNAM,
36	MONITOR_REQ_AUTH2_READ_BANNER, MONITOR_ANS_AUTH2_READ_BANNER,
37	MONITOR_REQ_AUTHPASSWORD, MONITOR_ANS_AUTHPASSWORD,
38	MONITOR_REQ_BSDAUTHQUERY, MONITOR_ANS_BSDAUTHQUERY,
39	MONITOR_REQ_BSDAUTHRESPOND, MONITOR_ANS_BSDAUTHRESPOND,
40	MONITOR_REQ_SKEYQUERY, MONITOR_ANS_SKEYQUERY,
41	MONITOR_REQ_SKEYRESPOND, MONITOR_ANS_SKEYRESPOND,
42	MONITOR_REQ_KEYALLOWED, MONITOR_ANS_KEYALLOWED,
43	MONITOR_REQ_KEYVERIFY, MONITOR_ANS_KEYVERIFY,
44	MONITOR_REQ_KEYEXPORT,
45	MONITOR_REQ_PTY, MONITOR_ANS_PTY,
46	MONITOR_REQ_PTYCLEANUP,
47	MONITOR_REQ_SESSKEY, MONITOR_ANS_SESSKEY,
48	MONITOR_REQ_SESSID,
49	MONITOR_REQ_RSAKEYALLOWED, MONITOR_ANS_RSAKEYALLOWED,
50	MONITOR_REQ_RSACHALLENGE, MONITOR_ANS_RSACHALLENGE,
51	MONITOR_REQ_RSARESPONSE, MONITOR_ANS_RSARESPONSE,
52	MONITOR_REQ_GSSSETUP, MONITOR_ANS_GSSSETUP,
53	MONITOR_REQ_GSSSTEP, MONITOR_ANS_GSSSTEP,
54	MONITOR_REQ_GSSUSEROK, MONITOR_ANS_GSSUSEROK,
55	MONITOR_REQ_GSSCHECKMIC, MONITOR_ANS_GSSCHECKMIC,
56	MONITOR_REQ_PAM_START,
57	MONITOR_REQ_PAM_ACCOUNT, MONITOR_ANS_PAM_ACCOUNT,
58	MONITOR_REQ_PAM_INIT_CTX, MONITOR_ANS_PAM_INIT_CTX,
59	MONITOR_REQ_PAM_QUERY, MONITOR_ANS_PAM_QUERY,
60	MONITOR_REQ_PAM_RESPOND, MONITOR_ANS_PAM_RESPOND,
61	MONITOR_REQ_PAM_FREE_CTX, MONITOR_ANS_PAM_FREE_CTX,
62	MONITOR_REQ_AUDIT_EVENT, MONITOR_REQ_AUDIT_COMMAND,
63	MONITOR_REQ_TERM
64};
65
66struct mm_master;
67struct monitor {
68	int			 m_recvfd;
69	int			 m_sendfd;
70	struct mm_master	*m_zback;
71	struct mm_master	*m_zlib;
72	struct Kex		**m_pkex;
73	pid_t			 m_pid;
74};
75
76struct monitor *monitor_init(void);
77void monitor_reinit(struct monitor *);
78void monitor_sync(struct monitor *);
79
80struct Authctxt;
81void monitor_child_preauth(struct Authctxt *, struct monitor *);
82void monitor_child_postauth(struct monitor *);
83
84struct mon_table;
85int monitor_read(struct monitor*, struct mon_table *, struct mon_table **);
86
87/* Prototypes for request sending and receiving */
88void mm_request_send(int, enum monitor_reqtype, Buffer *);
89void mm_request_receive(int, Buffer *);
90void mm_request_receive_expect(int, enum monitor_reqtype, Buffer *);
91
92#endif /* _MONITOR_H_ */
93