crypto/openssh/monitor_wrap.h

   1 /* $OpenBSD: monitor_wrap.h,v 1.35 2017/05/31 08:09:45 markus 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 monitor;
  37 struct Authctxt;
  38
  39 void mm_log_handler(LogLevel, const char *, void *);
  40 int mm_is_monitor(void);
  41 DH *mm_choose_dh(int, int, int);
  42 int mm_key_sign(struct sshkey *, u_char **, u_int *, const u_char *, u_int,
  43     const char *);
  44 void mm_inform_authserv(char *, char *);
  45 struct passwd *mm_getpwnamallow(const char *);
  46 char *mm_auth2_read_banner(void);
  47 int mm_auth_password(struct Authctxt *, char *);
  48 int mm_key_allowed(enum mm_keytype, const char *, const char *, struct sshkey *,
  49     int);
  50 int mm_user_key_allowed(struct passwd *, struct sshkey *, int);
  51 int mm_hostbased_key_allowed(struct passwd *, const char *,
  52     const char *, struct sshkey *);
  53 int mm_sshkey_verify(const struct sshkey *, const u_char *, size_t,
  54     const u_char *, size_t, u_int);
  55
  56 #ifdef GSSAPI
  57 OM_uint32 mm_ssh_gssapi_server_ctx(Gssctxt **, gss_OID);
  58 OM_uint32 mm_ssh_gssapi_accept_ctx(Gssctxt *,
  59    gss_buffer_desc *, gss_buffer_desc *, OM_uint32 *);
  60 int mm_ssh_gssapi_userok(char *user);
  61 OM_uint32 mm_ssh_gssapi_checkmic(Gssctxt *, gss_buffer_t, gss_buffer_t);
  62 #endif
  63
  64 #ifdef USE_PAM
  65 void mm_start_pam(struct Authctxt *);
  66 u_int mm_do_pam_account(void);
  67 void *mm_sshpam_init_ctx(struct Authctxt *);
  68 int mm_sshpam_query(void *, char **, char **, u_int *, char ***, u_int **);
  69 int mm_sshpam_respond(void *, u_int, char **);
  70 void mm_sshpam_free_ctx(void *);
  71 #endif
  72
  73 #ifdef SSH_AUDIT_EVENTS
  74 #include "audit.h"
  75 void mm_audit_event(ssh_audit_event_t);
  76 void mm_audit_run_command(const char *);
  77 #endif
  78
  79 struct Session;
  80 void mm_terminate(void);
  81 int mm_pty_allocate(int *, int *, char *, size_t);
  82 void mm_session_pty_cleanup2(struct Session *);
  83
  84 /* Key export functions */
  85 struct newkeys *mm_newkeys_from_blob(u_char *, int);
  86 int mm_newkeys_to_blob(int, u_char **, u_int *);
  87
  88 void monitor_clear_keystate(struct monitor *);
  89 void monitor_apply_keystate(struct monitor *);
  90 void mm_get_keystate(struct monitor *);
  91 void mm_send_keystate(struct monitor*);
  92
  93 /* bsdauth */
  94 int mm_bsdauth_query(void *, char **, char **, u_int *, char ***, u_int **);
  95 int mm_bsdauth_respond(void *, u_int, char **);
  96
  97 /* skey */
  98 int mm_skey_query(void *, char **, char **, u_int *, char ***, u_int **);
  99 int mm_skey_respond(void *, u_int, char **);
 100
 101 #endif /* _MM_WRAP_H_ */