2022-06-16 16:57:06 +08:00
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/* $OpenBSD: monitor.h,v 1.23 2019/01/19 21:43:56 djm Exp $ */
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/*
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* Copyright 2002 Niels Provos <provos@citi.umich.edu>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _MONITOR_H_
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#define _MONITOR_H_
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/* Please keep *_REQ_* values on even numbers and *_ANS_* on odd numbers */
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enum monitor_reqtype {
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MONITOR_REQ_MODULI = 0, MONITOR_ANS_MODULI = 1,
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MONITOR_REQ_FREE = 2,
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MONITOR_REQ_AUTHSERV = 4,
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MONITOR_REQ_SIGN = 6, MONITOR_ANS_SIGN = 7,
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MONITOR_REQ_PWNAM = 8, MONITOR_ANS_PWNAM = 9,
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MONITOR_REQ_AUTH2_READ_BANNER = 10, MONITOR_ANS_AUTH2_READ_BANNER = 11,
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MONITOR_REQ_AUTHPASSWORD = 12, MONITOR_ANS_AUTHPASSWORD = 13,
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MONITOR_REQ_BSDAUTHQUERY = 14, MONITOR_ANS_BSDAUTHQUERY = 15,
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MONITOR_REQ_BSDAUTHRESPOND = 16, MONITOR_ANS_BSDAUTHRESPOND = 17,
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MONITOR_REQ_KEYALLOWED = 22, MONITOR_ANS_KEYALLOWED = 23,
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MONITOR_REQ_KEYVERIFY = 24, MONITOR_ANS_KEYVERIFY = 25,
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MONITOR_REQ_KEYEXPORT = 26,
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MONITOR_REQ_PTY = 28, MONITOR_ANS_PTY = 29,
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MONITOR_REQ_PTYCLEANUP = 30,
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MONITOR_REQ_SESSKEY = 32, MONITOR_ANS_SESSKEY = 33,
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MONITOR_REQ_SESSID = 34,
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MONITOR_REQ_RSAKEYALLOWED = 36, MONITOR_ANS_RSAKEYALLOWED = 37,
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MONITOR_REQ_RSACHALLENGE = 38, MONITOR_ANS_RSACHALLENGE = 39,
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MONITOR_REQ_RSARESPONSE = 40, MONITOR_ANS_RSARESPONSE = 41,
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MONITOR_REQ_GSSSETUP = 42, MONITOR_ANS_GSSSETUP = 43,
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MONITOR_REQ_GSSSTEP = 44, MONITOR_ANS_GSSSTEP = 45,
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MONITOR_REQ_GSSUSEROK = 46, MONITOR_ANS_GSSUSEROK = 47,
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MONITOR_REQ_GSSCHECKMIC = 48, MONITOR_ANS_GSSCHECKMIC = 49,
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MONITOR_REQ_TERM = 50,
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MONITOR_REQ_PAM_START = 100,
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MONITOR_REQ_PAM_ACCOUNT = 102, MONITOR_ANS_PAM_ACCOUNT = 103,
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MONITOR_REQ_PAM_INIT_CTX = 104, MONITOR_ANS_PAM_INIT_CTX = 105,
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MONITOR_REQ_PAM_QUERY = 106, MONITOR_ANS_PAM_QUERY = 107,
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MONITOR_REQ_PAM_RESPOND = 108, MONITOR_ANS_PAM_RESPOND = 109,
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MONITOR_REQ_PAM_FREE_CTX = 110, MONITOR_ANS_PAM_FREE_CTX = 111,
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MONITOR_REQ_AUDIT_EVENT = 112, MONITOR_REQ_AUDIT_COMMAND = 113,
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2014-02-10 00:09:48 +08:00
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MONITOR_REQ_GSSSIGN = 150, MONITOR_ANS_GSSSIGN = 151,
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MONITOR_REQ_GSSUPCREDS = 152, MONITOR_ANS_GSSUPCREDS = 153,
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2014-02-10 00:09:49 +08:00
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MONITOR_REQ_AUTHROLE = 154,
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2022-06-16 16:57:06 +08:00
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};
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struct ssh;
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struct monitor {
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int m_recvfd;
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int m_sendfd;
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int m_log_recvfd;
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int m_log_sendfd;
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struct kex **m_pkex;
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pid_t m_pid;
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};
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struct monitor *monitor_init(void);
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void monitor_reinit(struct monitor *);
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struct Authctxt;
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void monitor_child_preauth(struct ssh *, struct monitor *);
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void monitor_child_postauth(struct ssh *, struct monitor *);
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void monitor_clear_keystate(struct ssh *, struct monitor *);
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void monitor_apply_keystate(struct ssh *, struct monitor *);
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/* Prototypes for request sending and receiving */
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void mm_request_send(int, enum monitor_reqtype, struct sshbuf *);
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void mm_request_receive(int, struct sshbuf *);
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void mm_request_receive_expect(int, enum monitor_reqtype, struct sshbuf *);
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void mm_get_keystate(struct ssh *, struct monitor *);
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#endif /* _MONITOR_H_ */
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