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/* $OpenBSD: auth-skey.c,v 1.27 2007/01/21 01:41:54 stevesk Exp $ */
/*
* 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"
#ifdef SKEY
#include <sys/types.h>
#include <pwd.h>
#include <stdio.h>
#include <skey.h>
#include "xmalloc.h"
#include "hostfile.h"
#include "auth.h"
#include "ssh-gss.h"
#include "log.h"
#include "monitor_wrap.h"
static void *
skey_init_ctx(Authctxt *authctxt)
{
return authctxt;
}
int
skey_query(void *ctx, char **name, char **infotxt,
u_int* numprompts, char ***prompts, u_int **echo_on)
{
Authctxt *authctxt = ctx;
char challenge[1024];
struct skey skey;
if (_compat_skeychallenge(&skey, authctxt->user, challenge,
sizeof(challenge)) == -1)
return -1;
*name = xstrdup("");
*infotxt = xstrdup("");
*numprompts = 1;
*prompts = xcalloc(*numprompts, sizeof(char *));
*echo_on = xcalloc(*numprompts, sizeof(u_int));
xasprintf(*prompts, "%s%s", challenge, SKEY_PROMPT);
return 0;
}
int
skey_respond(void *ctx, u_int numresponses, char **responses)
{
Authctxt *authctxt = ctx;
if (authctxt->valid &&
numresponses == 1 &&
skey_haskey(authctxt->pw->pw_name) == 0 &&
skey_passcheck(authctxt->pw->pw_name, responses[0]) != -1)
return 0;
return -1;
}
static void
skey_free_ctx(void *ctx)
{
/* we don't have a special context */
}
KbdintDevice skey_device = {
"skey",
skey_init_ctx,
skey_query,
skey_respond,
skey_free_ctx
};
KbdintDevice mm_skey_device = {
"skey",
skey_init_ctx,
mm_skey_query,
mm_skey_respond,
skey_free_ctx
};
#endif /* SKEY */
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