Add SIA kerberos module
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@920 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Johan Danielsson
320
lib/auth/sia/sia.c
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320
lib/auth/sia/sia.c
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/*
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* Copyright (c) 1995, 1996 Kungliga Tekniska H<>gskolan (Royal Institute
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* of Technology, Stockholm, Sweden).
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* 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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*
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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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*
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the Kungliga Tekniska
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* H<>gskolan and its contributors.
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*
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* 4. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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RCSID("$Id$");
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#endif
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#include <stdio.h>
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#include <string.h>
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#include <siad.h>
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#include <pwd.h>
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#include <krb.h>
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int
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siad_init(void)
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{
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return SIADSUCCESS;
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}
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int
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siad_chk_invoker(void)
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{
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return SIADFAIL;
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}
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int
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siad_ses_init(SIAENTITY *entity, int pkgind)
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{
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entity->mech[pkgind] = NULL;
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return SIADSUCCESS;
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}
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static int
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setup_name(SIAENTITY *e, prompt_t *p)
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{
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e->name = malloc(SIANAMEMIN+1);
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if(e->name == NULL)
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return SIADFAIL;
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p->prompt = (unsigned char*)"login: ";
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p->result = (unsigned char*)e->name;
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p->min_result_length = 1;
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p->max_result_length = SIANAMEMIN;
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p->control_flags = 0;
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return SIADSUCCESS;
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}
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static int
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setup_password(SIAENTITY *e, prompt_t *p)
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{
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e->password = malloc(SIAMXPASSWORD+1);
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if(e->password == NULL)
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return SIADFAIL;
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p->prompt = (unsigned char*)"Password: ";
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p->result = (unsigned char*)e->password;
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p->min_result_length = 0;
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p->max_result_length = SIAMXPASSWORD;
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p->control_flags = SIARESINVIS;
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return SIADSUCCESS;
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}
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int
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siad_ses_authent(sia_collect_func_t *collect,
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SIAENTITY *entity,
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int siastat,
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int pkgind)
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{
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prompt_t prompts[2], *pr;
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if((siastat == SIADSUCCESS) && (geteuid() == 0))
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return SIADSUCCESS;
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if(entity == NULL)
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return SIADFAIL | SIADSTOP;
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if((entity->acctname != NULL) || (entity->pwd != NULL))
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return SIADFAIL | SIADSTOP;
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if((collect != NULL) && entity->colinput) {
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int num;
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pr = prompts;
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if(entity->name == NULL){
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if(setup_name(entity, pr) != SIADSUCCESS)
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return SIADFAIL;
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pr++;
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}
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if(entity->password == NULL){
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if(setup_password(entity, pr) != SIADSUCCESS)
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return SIADFAIL;
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pr++;
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}
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num = pr - prompts;
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if(num == 1){
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if((*collect)(240, SIAONELINER, (unsigned char*)"bar", num,
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prompts) != SIACOLSUCCESS)
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return SIADFAIL | SIADSTOP;
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} else if(num > 0){
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if((*collect)(0, SIAFORM, (unsigned char*)"foo", num,
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prompts) != SIACOLSUCCESS)
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return SIADFAIL | SIADSTOP;
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}
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}
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if(entity->password == NULL || strlen(entity->password) > SIAMXPASSWORD)
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return SIADFAIL;
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if(entity->name[0] == 0)
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return SIADFAIL;
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{
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char realm[REALM_SZ];
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int ret;
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struct passwd pwd;
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char buf[1024];
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sprintf(buf, "%s_%d", TKT_ROOT, getpid());
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entity->mech[pkgind] = (int*)strdup(buf);
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krb_set_tkt_string(buf);
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krb_get_lrealm(realm, 0);
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ret = krb_verify_user(entity->name, "", realm,
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entity->password, 0, NULL);
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if(ret){
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SIALOG("WARNING", "krb_verify_user(%s): %s",
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entity->name, krb_get_err_text(ret));
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return SIADFAIL;
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}
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getpwnam_r(entity->name, &pwd, buf, sizeof(buf));
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if(sia_make_entity_pwd(&pwd, entity) == SIAFAIL)
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return SIADFAIL;
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}
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return SIADSUCCESS;
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}
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int
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siad_ses_estab(sia_collect_func_t *collect,
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SIAENTITY *entity, int pkgind)
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{
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return SIADFAIL;
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}
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int
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siad_ses_launch(sia_collect_func_t *collect,
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SIAENTITY *entity,
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int pkgind)
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{
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char buf[1024];
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if(entity->mech[pkgind] == NULL)
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return SIADFAIL;
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sprintf(buf, "%s%d", TKT_ROOT, entity->pwd->pw_uid);
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rename((char*)entity->mech[pkgind], buf);
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krb_set_tkt_string(buf);
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chown(buf, entity->pwd->pw_uid, entity->pwd->pw_gid);
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return SIADSUCCESS;
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}
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int
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siad_ses_release(SIAENTITY *entity, int pkgind)
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{
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if(entity->mech[pkgind])
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free(entity->mech[pkgind]);
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return SIADSUCCESS;
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}
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/* Is it necessary to have all these? I think not. */
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int
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siad_ses_suauthent(sia_collect_func_t *collect,
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SIAENTITY *entity,
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int siastat,
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int pkgind)
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{
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return SIADFAIL;
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}
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int
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siad_ses_reauthent(sia_collect_func_t *collect,
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SIAENTITY *entity,
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int siastat,
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int pkgind)
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{
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return SIADFAIL;
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}
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int
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siad_chg_finger(sia_collect_func_t *collect,
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const char *username, int argc, char *argv[])
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{
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return SIADFAIL;
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}
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int
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siad_chg_password(sia_collect_func_t *collect,
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const char *username, int argc, char *argv[])
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{
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return SIADFAIL;
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}
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int
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siad_chg_shell(sia_collect_func_t *collect,
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const char *username, int argc, char *argv[])
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{
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return SIADFAIL;
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}
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int
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siad_getpwent(struct passwd *result, char *buf, int bufsize, FILE
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**context)
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{
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return SIADFAIL;
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}
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int
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siad_getpwuid(uid_t uid, struct passwd *result, char *buf, int bufsize)
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{
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return SIADFAIL;
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}
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int
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siad_getpwnam(const char *name, struct passwd *result, char *buf,
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int bufsize)
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{
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return SIADFAIL;
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}
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int
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siad_setpwent(FILE **context)
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{
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return SIADFAIL;
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}
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int
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siad_endpwent(FILE **context)
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{
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return SIADFAIL;
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}
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int
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siad_getgrent(struct group *result, char *buf, int bufsize, FILE
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**context)
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{
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return SIADFAIL;
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}
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int
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siad_getgrgid(gid_t gid, struct group *result, char *buf, int bufsize)
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{
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return SIADFAIL;
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}
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int
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siad_getgrnam(const char *name, struct group *result, char *buf,
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int bufsize)
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{
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return SIADFAIL;
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}
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int
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siad_setgrent(FILE **context)
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{
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return SIADFAIL;
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}
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int
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siad_endgrent(FILE **context)
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{
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return SIADFAIL;
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}
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int
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siad_chk_user(const char *logname, int checkflag)
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{
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return SIADFAIL;
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}
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