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      1 /* $OpenBSD: monitor_wrap.h,v 1.23 2011/06/17 21:44:31 djm Exp $ */
      2 
      3 /*
      4  * Copyright 2002 Niels Provos <provos (at) 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, MM_RSAHOSTKEY, MM_RSAUSERKEY};
     35 
     36 struct monitor;
     37 struct mm_master;
     38 struct Authctxt;
     39 
     40 void mm_log_handler(LogLevel, const char *, void *);
     41 int mm_is_monitor(void);
     42 DH *mm_choose_dh(int, int, int);
     43 int mm_key_sign(Key *, u_char **, u_int *, u_char *, u_int);
     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, char *, char *, Key *);
     49 int mm_user_key_allowed(struct passwd *, Key *);
     50 int mm_hostbased_key_allowed(struct passwd *, char *, char *, Key *);
     51 int mm_auth_rhosts_rsa_key_allowed(struct passwd *, char *, char *, Key *);
     52 int mm_key_verify(Key *, u_char *, u_int, u_char *, u_int);
     53 int mm_auth_rsa_key_allowed(struct passwd *, BIGNUM *, Key **);
     54 int mm_auth_rsa_verify_response(Key *, BIGNUM *, u_char *);
     55 BIGNUM *mm_auth_rsa_generate_challenge(Key *);
     56 
     57 #ifdef GSSAPI
     58 OM_uint32 mm_ssh_gssapi_server_ctx(Gssctxt **, gss_OID);
     59 OM_uint32 mm_ssh_gssapi_accept_ctx(Gssctxt *,
     60    gss_buffer_desc *, gss_buffer_desc *, OM_uint32 *);
     61 int mm_ssh_gssapi_userok(char *user);
     62 OM_uint32 mm_ssh_gssapi_checkmic(Gssctxt *, gss_buffer_t, gss_buffer_t);
     63 #endif
     64 
     65 #ifdef USE_PAM
     66 void mm_start_pam(struct Authctxt *);
     67 u_int mm_do_pam_account(void);
     68 void *mm_sshpam_init_ctx(struct Authctxt *);
     69 int mm_sshpam_query(void *, char **, char **, u_int *, char ***, u_int **);
     70 int mm_sshpam_respond(void *, u_int, char **);
     71 void mm_sshpam_free_ctx(void *);
     72 #endif
     73 
     74 #ifdef SSH_AUDIT_EVENTS
     75 #include "audit.h"
     76 void mm_audit_event(ssh_audit_event_t);
     77 void mm_audit_run_command(const char *);
     78 #endif
     79 
     80 struct Session;
     81 void mm_terminate(void);
     82 int mm_pty_allocate(int *, int *, char *, size_t);
     83 void mm_session_pty_cleanup2(struct Session *);
     84 
     85 /* SSHv1 interfaces */
     86 void mm_ssh1_session_id(u_char *);
     87 int mm_ssh1_session_key(BIGNUM *);
     88 
     89 /* Key export functions */
     90 struct Newkeys *mm_newkeys_from_blob(u_char *, int);
     91 int mm_newkeys_to_blob(int, u_char **, u_int *);
     92 
     93 void monitor_apply_keystate(struct monitor *);
     94 void mm_get_keystate(struct monitor *);
     95 void mm_send_keystate(struct monitor*);
     96 
     97 /* bsdauth */
     98 int mm_bsdauth_query(void *, char **, char **, u_int *, char ***, u_int **);
     99 int mm_bsdauth_respond(void *, u_int, char **);
    100 
    101 /* skey */
    102 int mm_skey_query(void *, char **, char **, u_int *, char ***, u_int **);
    103 int mm_skey_respond(void *, u_int, char **);
    104 
    105 /* jpake */
    106 struct modp_group;
    107 void mm_auth2_jpake_get_pwdata(struct Authctxt *, BIGNUM **, char **, char **);
    108 void mm_jpake_step1(struct modp_group *, u_char **, u_int *,
    109     BIGNUM **, BIGNUM **, BIGNUM **, BIGNUM **,
    110     u_char **, u_int *, u_char **, u_int *);
    111 void mm_jpake_step2(struct modp_group *, BIGNUM *,
    112     BIGNUM *, BIGNUM *, BIGNUM *, BIGNUM *,
    113     const u_char *, u_int, const u_char *, u_int,
    114     const u_char *, u_int, const u_char *, u_int,
    115     BIGNUM **, u_char **, u_int *);
    116 void mm_jpake_key_confirm(struct modp_group *, BIGNUM *, BIGNUM *,
    117     BIGNUM *, BIGNUM *, BIGNUM *, BIGNUM *, BIGNUM *,
    118     const u_char *, u_int, const u_char *, u_int,
    119     const u_char *, u_int, const u_char *, u_int,
    120     BIGNUM **, u_char **, u_int *);
    121 int mm_jpake_check_confirm(const BIGNUM *,
    122     const u_char *, u_int, const u_char *, u_int, const u_char *, u_int);
    123 
    124 
    125 /* zlib allocation hooks */
    126 
    127 void *mm_zalloc(struct mm_master *, u_int, u_int);
    128 void mm_zfree(struct mm_master *, void *);
    129 void mm_init_compression(struct mm_master *);
    130 
    131 #endif /* _MM_WRAP_H_ */
    132