You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 

94 lines
2.5 KiB

#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#define LDAP_DEPRECATED 1
#include <ldap.h>
#include "config.h"
int
check_against_ldap(oal_config_t * const config,
const char * const username,
const char * const password)
{
enum { bufsize = 1024 };
struct timeval tv = { 30, 0 };
short int tmp;
LDAP *ld = NULL;
LDAPMessage *res = NULL;
LDAPMessage *entry = NULL;
char err[bufsize];
char *searchattr[] = { (char *) LDAP_NO_ATTRS, NULL };
int rc;
if ((rc = ldap_initialize(&ld, config->bindurls)) != LDAP_SUCCESS) {
snprintf(err, bufsize, "can't connnect to ldap server(s): %s", strerror(errno));
config->error = strndup(err, bufsize);
}
if (config->bindtimeout)
tv.tv_sec = config->bindtimeout;
/* hardcoded options */
tmp = LDAP_VERSION3;
if (ldap_set_option(ld, LDAP_OPT_PROTOCOL_VERSION, &tmp) != LDAP_OPT_SUCCESS) {
snprintf(err, bufsize, "can't set ldap protocol version");
goto error_opts;
}
tmp = 5;
if (ldap_set_option(ld, LDAP_OPT_SIZELIMIT, &tmp) != LDAP_OPT_SUCCESS) {
snprintf(err, bufsize, "can't set max results limit");
goto error_opts;
}
/* timeouts */
if (ldap_set_option(ld, LDAP_OPT_NETWORK_TIMEOUT, &tv) != LDAP_OPT_SUCCESS) {
snprintf(err, bufsize, "can't set network timeout: %d", config->bindtimeout);
goto error_opts;
}
if (ldap_set_option(ld, LDAP_OPT_TIMEOUT, &tv) != LDAP_OPT_SUCCESS) {
snprintf(err, bufsize, "can't set search timeout: %d", config->bindtimeout);
goto error_opts;
}
/* TODO: hardcoded */
if (ldap_set_option(ld, LDAP_OPT_REFERRALS, LDAP_OPT_OFF) != LDAP_OPT_SUCCESS) {
snprintf(err, bufsize, "can't set follow referrals to 'off'");
goto error_opts;
}
/* required */
if (ldap_set_option(ld, LDAP_OPT_DEFBASE, config->basedn) != LDAP_OPT_SUCCESS) {
snprintf(err, bufsize, "can't set searchbase: %s", config->basedn);
goto error_opts;
}
if((rc = ldap_simple_bind_s(ld, config->binddn, config->bindpass)) != LDAP_SUCCESS) {
snprintf(err, bufsize, "can't bind to ldap server: %s", ldap_err2string(rc));
goto error_opts;
}
rc = ldap_search_s(ld, config->basedn, LDAP_SCOPE_SUBTREE, config->userfilter, searchattr, 1, &res);
if (rc != LDAP_SUCCESS) {
;
}
while (1) {
if ((ldap_simple_bind_s(ld, NULL, password)) != LDAP_SUCCESS) {
}
}
if (res) {
ldap_msgfree(res);
res = NULL;
}
if (ld)
ldap_unbind(ld);
return 0;
error_opts:
config->error = strndup(err, bufsize);
return 1;
}