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03e3de416e
binaries. This step splits sshd into a listener and a session binary. More splits are planned. After this changes, the listener binary will validate the configuration, load the hostkeys, listen on port 22 and manage MaxStartups only. All session handling will be performed by a new sshd-session binary that the listener fork+execs. This reduces the listener process to the minimum necessary and sets us up for future work on the sshd-session binary. feedback/ok markus@ deraadt@ NB. if you're updating via source, please restart sshd after installing, otherwise you run the risk of locking yourself out. OpenBSD-Commit-ID: 43c04a1ab96cdbdeb53d2df0125a6d42c5f19934
72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/* $OpenBSD: auth2-kbdint.c,v 1.15 2024/05/17 00:30:23 djm Exp $ */
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/*
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* Copyright (c) 2000 Markus Friedl. 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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#include "includes.h"
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#include <sys/types.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include "xmalloc.h"
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#include "packet.h"
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#include "hostfile.h"
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#include "auth.h"
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#include "log.h"
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#include "misc.h"
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#include "servconf.h"
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#include "ssherr.h"
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/* import */
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extern ServerOptions options;
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extern struct authmethod_cfg methodcfg_kbdint;
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static int
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userauth_kbdint(struct ssh *ssh, const char *method)
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{
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int r, authenticated = 0;
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char *lang, *devs;
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if ((r = sshpkt_get_cstring(ssh, &lang, NULL)) != 0 ||
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(r = sshpkt_get_cstring(ssh, &devs, NULL)) != 0 ||
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(r = sshpkt_get_end(ssh)) != 0)
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fatal_fr(r, "parse packet");
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debug("keyboard-interactive devs %s", devs);
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if (options.kbd_interactive_authentication)
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authenticated = auth2_challenge(ssh, devs);
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free(devs);
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free(lang);
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return authenticated;
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}
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Authmethod method_kbdint = {
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&methodcfg_kbdint,
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userauth_kbdint,
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};
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