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/* cvm/sql-auth.c - Generic SQL authentication layer
* Copyright (C) 2010 Bruce Guenter <bruce@untroubled.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdlib.h>
#include <string.h>
#include <str/str.h>
#include <pwcmp/client.h>
#include "module.h"
#include "sql.h"
static const char* query;
static const char* postq;
int cvm_module_init(void)
{
int result;
if ((query = getenv(sql_query_var)) == 0) return CVME_CONFIG;
if (!sql_query_validate(query)) return CVME_CONFIG;
if ((postq = getenv(sql_postq_var)) != 0)
if (!sql_query_validate(postq)) return CVME_CONFIG;
if ((result = sql_auth_init()) != 0) return result;
if (!pwcmp_start(getenv(sql_pwcmp_var))) return CVME_GENERAL;
return 0;
}
static str q;
int cvm_module_lookup(void)
{
int i;
/* Query the database based on the custom query */
if (!sql_query_build(query, &q)) return CVME_GENERAL | CVME_FATAL;
if ((i = sql_auth_query(&q)) < 0) return -i;
/* If the result didn't produce a single row, fail the username */
return (i == 1) ? 0 : CVME_PERMFAIL;
}
int cvm_module_authenticate(void)
{
const char* cpw;
CVM_CRED_REQUIRED(PASSWORD);
/* If there is no password field, fail the password */
cpw = sql_get_field(0);
if (cpw == 0 || cpw[0] == 0) return CVME_PERMFAIL;
/* Finally, if the stored pass is not the same, fail the pass */
switch (pwcmp_check(cvm_module_credentials[CVM_CRED_PASSWORD].s, cpw)) {
case 0: return 0;
case -1: return CVME_IO | CVME_FATAL;
default: return CVME_PERMFAIL;
}
}
int cvm_module_results(void)
{
int i;
if (postq) {
if (!sql_query_build(postq, &q)) return CVME_GENERAL | CVME_FATAL;
if ((i = sql_post_query(&q)) != 0) return i;
}
/* Credentials accepted */
cvm_fact_username = sql_get_field(1);
cvm_fact_userid = strtol(sql_get_field(2), 0, 10);
cvm_fact_groupid = strtol(sql_get_field(3), 0, 10);
cvm_fact_directory = sql_get_field(4);
cvm_fact_realname = sql_get_field(5);
cvm_fact_shell = sql_get_field(6);
cvm_fact_groupname = sql_get_field(7);
cvm_fact_domain = sql_get_field(8);
cvm_fact_sys_username = sql_get_field(9);
cvm_fact_sys_directory = sql_get_field(10);
cvm_fact_mailbox = sql_get_field(11);
return 0;
}
void cvm_module_stop(void)
{
pwcmp_stop();
sql_auth_stop();
}
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