xref: /openbsd/usr.bin/ssh/monitor_wrap.h (revision 5a862d4e)
1 /* $OpenBSD: monitor_wrap.h,v 1.51 2024/05/17 06:42:04 jsg 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 _MM_WRAP_H_
29 #define _MM_WRAP_H_
30 
31 enum mm_keytype { MM_NOKEY, MM_HOSTKEY, MM_USERKEY };
32 
33 struct ssh;
34 struct monitor;
35 struct Authctxt;
36 struct sshkey;
37 struct sshauthopt;
38 struct sshkey_sig_details;
39 
40 void mm_log_handler(LogLevel, int, const char *, void *);
41 int mm_is_monitor(void);
42 #ifdef WITH_OPENSSL
43 DH *mm_choose_dh(int, int, int);
44 #endif
45 int mm_sshkey_sign(struct ssh *, struct sshkey *, u_char **, size_t *,
46     const u_char *, size_t, const char *, const char *,
47     const char *, u_int compat);
48 void mm_inform_authserv(char *, char *);
49 struct passwd *mm_getpwnamallow(struct ssh *, const char *);
50 char *mm_auth2_read_banner(void);
51 int mm_auth_password(struct ssh *, char *);
52 int mm_key_allowed(enum mm_keytype, const char *, const char *, struct sshkey *,
53     int, struct sshauthopt **);
54 int mm_user_key_allowed(struct ssh *ssh, struct passwd *, struct sshkey *, int,
55     struct sshauthopt **);
56 int mm_hostbased_key_allowed(struct ssh *, struct passwd *, const char *,
57     const char *, struct sshkey *);
58 int mm_sshkey_verify(const struct sshkey *, const u_char *, size_t,
59     const u_char *, size_t, const char *, u_int, struct sshkey_sig_details **);
60 
61 void mm_decode_activate_server_options(struct ssh *ssh, struct sshbuf *m);
62 
63 #ifdef GSSAPI
64 OM_uint32 mm_ssh_gssapi_server_ctx(Gssctxt **, gss_OID);
65 OM_uint32 mm_ssh_gssapi_accept_ctx(Gssctxt *,
66    gss_buffer_desc *, gss_buffer_desc *, OM_uint32 *);
67 int mm_ssh_gssapi_userok(char *user);
68 OM_uint32 mm_ssh_gssapi_checkmic(Gssctxt *, gss_buffer_t, gss_buffer_t);
69 #endif
70 
71 struct Session;
72 void mm_terminate(void);
73 int mm_pty_allocate(int *, int *, char *, size_t);
74 void mm_session_pty_cleanup2(struct Session *);
75 
76 void mm_send_keystate(struct ssh *, struct monitor*);
77 
78 /* bsdauth */
79 int mm_bsdauth_query(void *, char **, char **, u_int *, char ***, u_int **);
80 int mm_bsdauth_respond(void *, u_int, char **);
81 
82 /* config / channels glue */
83 void	 server_process_permitopen(struct ssh *);
84 void	 server_process_channel_timeouts(struct ssh *ssh);
85 struct connection_info *
86 	 server_get_connection_info(struct ssh *, int, int);
87 
88 #endif /* _MM_WRAP_H_ */
89