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      1 /* $OpenBSD: monitor.h,v 1.16 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 _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 	MONITOR_REQ_JPAKE_STEP1, MONITOR_ANS_JPAKE_STEP1,
     65 	MONITOR_REQ_JPAKE_GET_PWDATA, MONITOR_ANS_JPAKE_GET_PWDATA,
     66 	MONITOR_REQ_JPAKE_STEP2, MONITOR_ANS_JPAKE_STEP2,
     67 	MONITOR_REQ_JPAKE_KEY_CONFIRM, MONITOR_ANS_JPAKE_KEY_CONFIRM,
     68 	MONITOR_REQ_JPAKE_CHECK_CONFIRM, MONITOR_ANS_JPAKE_CHECK_CONFIRM,
     69 };
     70 
     71 struct mm_master;
     72 struct monitor {
     73 	int			 m_recvfd;
     74 	int			 m_sendfd;
     75 	int			 m_log_recvfd;
     76 	int			 m_log_sendfd;
     77 	struct mm_master	*m_zback;
     78 	struct mm_master	*m_zlib;
     79 	struct Kex		**m_pkex;
     80 	pid_t			 m_pid;
     81 };
     82 
     83 struct monitor *monitor_init(void);
     84 void monitor_reinit(struct monitor *);
     85 void monitor_sync(struct monitor *);
     86 
     87 struct Authctxt;
     88 void monitor_child_preauth(struct Authctxt *, struct monitor *);
     89 void monitor_child_postauth(struct monitor *);
     90 
     91 struct mon_table;
     92 int monitor_read(struct monitor*, struct mon_table *, struct mon_table **);
     93 
     94 /* Prototypes for request sending and receiving */
     95 void mm_request_send(int, enum monitor_reqtype, Buffer *);
     96 void mm_request_receive(int, Buffer *);
     97 void mm_request_receive_expect(int, enum monitor_reqtype, Buffer *);
     98 
     99 #endif /* _MONITOR_H_ */
    100