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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/crypto/openssh/auth-sia.c
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/*

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 * Copyright (c) 2002 Chris Adams.  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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#ifdef HAVE_OSF_SIA

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#include <sia.h>

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#include <siad.h>

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#include <pwd.h>

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#include <signal.h>

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#include <setjmp.h>

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#include <sys/resource.h>

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#include <unistd.h>

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#include <stdarg.h>

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#include <string.h>

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#include "ssh.h"

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#include "ssh_api.h"

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#include "hostfile.h"

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#include "auth.h"

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#include "auth-sia.h"

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#include "log.h"

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#include "servconf.h"

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#include "canohost.h"

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#include "uidswap.h"

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extern ServerOptions options;

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extern int saved_argc;

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extern char **saved_argv;

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int

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sys_auth_passwd(struct ssh *ssh, const char *pass)

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{

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	int ret;

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	SIAENTITY *ent = NULL;

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	const char *host;

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	Authctxt *authctxt = ssh->authctxt;

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	host = get_canonical_hostname(options.use_dns);

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	if (!authctxt->user || pass == NULL || pass[0] == '\0')

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		return (0);

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	if (sia_ses_init(&ent, saved_argc, saved_argv, host, authctxt->user,

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	    NULL, 0, NULL) != SIASUCCESS)

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		return (0);

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	if ((ret = sia_ses_authent(NULL, pass, ent)) != SIASUCCESS) {

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		error("Couldn't authenticate %s from %s",

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		    authctxt->user, host);

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		if (ret & SIASTOP)

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			sia_ses_release(&ent);

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		return (0);

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	}

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	sia_ses_release(&ent);

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	return (1);

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}

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void

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session_setup_sia(struct passwd *pw, char *tty)

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{

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	SIAENTITY *ent = NULL;

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	const char *host;

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	host = get_canonical_hostname(options.use_dns);

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	if (sia_ses_init(&ent, saved_argc, saved_argv, host, pw->pw_name,

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	    tty, 0, NULL) != SIASUCCESS)

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		fatal("sia_ses_init failed");

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	if (sia_make_entity_pwd(pw, ent) != SIASUCCESS) {

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		sia_ses_release(&ent);

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		fatal("sia_make_entity_pwd failed");

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	}

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	ent->authtype = SIA_A_NONE;

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	if (sia_ses_estab(sia_collect_trm, ent) != SIASUCCESS)

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		fatal("Couldn't establish session for %s from %s",

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		    pw->pw_name, host);

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	if (sia_ses_launch(sia_collect_trm, ent) != SIASUCCESS)

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		fatal("Couldn't launch session for %s from %s",

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		    pw->pw_name, host);

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	sia_ses_release(&ent);

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	setuid(0);

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	permanently_set_uid(pw);

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}

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#endif /* HAVE_OSF_SIA */

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