/* $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. */ #ifdef SKEY #include <sys/types.h> #include <pwd.h> #include <stdio.h> #include <skey.h> #include "xmalloc.h" #include "key.h" #include "hostfile.h" #include "auth.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 (skeychallenge(&skey, authctxt->user, 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 */