monitor.h

   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
  31 enum 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
  66 struct mm_master;
  67 struct 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
  76 struct monitor *monitor_init(void);
  77 void monitor_reinit(struct monitor *);
  78 void monitor_sync(struct monitor *);
  79
  80 struct Authctxt;
  81 void monitor_child_preauth(struct Authctxt *, struct monitor *);
  82 void monitor_child_postauth(struct monitor *);
  83
  84 struct mon_table;
  85 int monitor_read(struct monitor*, struct mon_table *, struct mon_table **);
  86
  87 /* Prototypes for request sending and receiving */
  88 void mm_request_send(int, enum monitor_reqtype, Buffer *);
  89 void mm_request_receive(int, Buffer *);
  90 void mm_request_receive_expect(int, enum monitor_reqtype, Buffer *);
  91
  92 #endif /* _MONITOR_H_ */