crypto/openssh/monitor_wrap.h

   1 /* $OpenBSD: monitor_wrap.h,v 1.49 2022/06/15 16:08:25 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 _MM_WRAP_H_
  29 #define _MM_WRAP_H_
  30
  31 extern int use_privsep;
  32 #define PRIVSEP(x)      (use_privsep ? mm_##x : x)
  33
  34 enum mm_keytype { MM_NOKEY, MM_HOSTKEY, MM_USERKEY };
  35
  36 struct ssh;
  37 struct monitor;
  38 struct Authctxt;
  39 struct sshkey;
  40 struct sshauthopt;
  41 struct sshkey_sig_details;
  42
  43 void mm_log_handler(LogLevel, int, const char *, void *);
  44 int mm_is_monitor(void);
  45 #ifdef WITH_OPENSSL
  46 DH *mm_choose_dh(int, int, int);
  47 #endif
  48 int mm_sshkey_sign(struct ssh *, struct sshkey *, u_char **, size_t *,
  49     const u_char *, size_t, const char *, const char *,
  50     const char *, u_int compat);
  51 void mm_inform_authserv(char *, char *);
  52 struct passwd *mm_getpwnamallow(struct ssh *, const char *);
  53 char *mm_auth2_read_banner(void);
  54 int mm_auth_password(struct ssh *, char *);
  55 int mm_key_allowed(enum mm_keytype, const char *, const char *, struct sshkey *,
  56     int, struct sshauthopt **);
  57 int mm_user_key_allowed(struct ssh *ssh, struct passwd *, struct sshkey *, int,
  58     struct sshauthopt **);
  59 int mm_hostbased_key_allowed(struct ssh *, struct passwd *, const char *,
  60     const char *, struct sshkey *);
  61 int mm_sshkey_verify(const struct sshkey *, const u_char *, size_t,
  62     const u_char *, size_t, const char *, u_int, struct sshkey_sig_details **);
  63
  64 #ifdef GSSAPI
  65 OM_uint32 mm_ssh_gssapi_server_ctx(Gssctxt **, gss_OID);
  66 OM_uint32 mm_ssh_gssapi_accept_ctx(Gssctxt *,
  67    gss_buffer_desc *, gss_buffer_desc *, OM_uint32 *);
  68 int mm_ssh_gssapi_userok(char *user);
  69 OM_uint32 mm_ssh_gssapi_checkmic(Gssctxt *, gss_buffer_t, gss_buffer_t);
  70 #endif
  71
  72 #ifdef USE_PAM
  73 void mm_start_pam(struct ssh *ssh);
  74 u_int mm_do_pam_account(void);
  75 void *mm_sshpam_init_ctx(struct Authctxt *);
  76 int mm_sshpam_query(void *, char **, char **, u_int *, char ***, u_int **);
  77 int mm_sshpam_respond(void *, u_int, char **);
  78 void mm_sshpam_free_ctx(void *);
  79 #endif
  80
  81 #ifdef SSH_AUDIT_EVENTS
  82 #include "audit.h"
  83 void mm_audit_event(struct ssh *, ssh_audit_event_t);
  84 void mm_audit_run_command(const char *);
  85 #endif
  86
  87 struct Session;
  88 void mm_terminate(void);
  89 int mm_pty_allocate(int *, int *, char *, size_t);
  90 void mm_session_pty_cleanup2(struct Session *);
  91
  92 /* Key export functions */
  93 struct newkeys *mm_newkeys_from_blob(u_char *, int);
  94 int mm_newkeys_to_blob(int, u_char **, u_int *);
  95
  96 void mm_send_keystate(struct ssh *, struct monitor*);
  97
  98 /* bsdauth */
  99 int mm_bsdauth_query(void *, char **, char **, u_int *, char ***, u_int **);
 100 int mm_bsdauth_respond(void *, u_int, char **);
 101
 102 #endif /* _MM_WRAP_H_ */