mirror of git://anongit.mindrot.org/openssh.git
105 lines
3.1 KiB
C
105 lines
3.1 KiB
C
/*
|
|
* Copyright (c) 2001 Markus Friedl. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "includes.h"
|
|
RCSID("$OpenBSD: auth-chall.c,v 1.6 2001/03/20 18:57:04 markus Exp $");
|
|
|
|
#include "auth.h"
|
|
#include "log.h"
|
|
|
|
#ifdef BSD_AUTH
|
|
char *
|
|
get_challenge(Authctxt *authctxt, char *devs)
|
|
{
|
|
char *challenge;
|
|
|
|
if (authctxt->as != NULL) {
|
|
debug2("try reuse session");
|
|
challenge = auth_getitem(authctxt->as, AUTHV_CHALLENGE);
|
|
if (challenge != NULL) {
|
|
debug2("reuse bsd auth session");
|
|
return challenge;
|
|
}
|
|
auth_close(authctxt->as);
|
|
authctxt->as = NULL;
|
|
}
|
|
debug2("new bsd auth session");
|
|
if (devs == NULL || strlen(devs) == 0)
|
|
devs = authctxt->style;
|
|
debug3("bsd auth: devs %s", devs ? devs : "<default>");
|
|
authctxt->as = auth_userchallenge(authctxt->user, devs, "auth-ssh",
|
|
&challenge);
|
|
if (authctxt->as == NULL)
|
|
return NULL;
|
|
debug2("get_challenge: <%s>", challenge ? challenge : "EMPTY");
|
|
return challenge;
|
|
}
|
|
int
|
|
verify_response(Authctxt *authctxt, char *response)
|
|
{
|
|
int authok;
|
|
|
|
if (authctxt->as == 0)
|
|
error("verify_response: no bsd auth session");
|
|
authok = auth_userresponse(authctxt->as, response, 0);
|
|
authctxt->as = NULL;
|
|
debug("verify_response: <%s> = <%d>", response, authok);
|
|
return authok != 0;
|
|
}
|
|
#else
|
|
#ifdef SKEY
|
|
#include <skey.h>
|
|
|
|
char *
|
|
get_challenge(Authctxt *authctxt, char *devs)
|
|
{
|
|
static char challenge[1024];
|
|
struct skey skey;
|
|
if (skeychallenge(&skey, authctxt->user, challenge) == -1)
|
|
return NULL;
|
|
strlcat(challenge, "\nS/Key Password: ", sizeof challenge);
|
|
return challenge;
|
|
}
|
|
int
|
|
verify_response(Authctxt *authctxt, char *response)
|
|
{
|
|
return (authctxt->valid &&
|
|
skey_haskey(authctxt->pw->pw_name) == 0 &&
|
|
skey_passcheck(authctxt->pw->pw_name, response) != -1);
|
|
}
|
|
#else
|
|
/* not available */
|
|
char *
|
|
get_challenge(Authctxt *authctxt, char *devs)
|
|
{
|
|
return NULL;
|
|
}
|
|
int
|
|
verify_response(Authctxt *authctxt, char *response)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
#endif
|