pam
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// Copyright 2007-2010 Mir Calculate Ltd. http://www.calculate-linux.org
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <security/pam_modules.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <ctype.h>
#include <asm/unistd.h>
#define PAM_SM_AUTH
#define MAX_V 30
#define WAITTIME 30
int file_exists(const char *fname) {
return access(fname, 0) != -1;
}
// Authentication function
PAM_EXTERN int pam_sm_authenticate(pam_handle_t * pamh, int flags
,int argc, const char **argv)
{
int i;
char *boot_client="/etc/runlevels/boot/client";
char *default_client="/etc/runlevels/default/client";
char *started_client="/run/openrc/started/client";
char *started_local="/run/openrc/started/local";
if (file_exists(boot_client) || file_exists(default_client)) {
for(i=0;i<WAITTIME;i++) {
if(file_exists(started_client) ||
file_exists(started_local)) {
break;
}
sleep(1);
}
}
return PAM_SUCCESS;
}
// Empty function, necessary for pam-module
PAM_EXTERN int pam_sm_setcred(pam_handle_t * pamh, int flags
,int argc, const char **argv)
{
return PAM_SUCCESS;
}
#ifdef PAM_STATIC
struct pam_module _pam_unix_auth_modstruct = {
"pam_client",
pam_sm_authenticate,
pam_sm_setcred,
NULL,
NULL,
NULL,
NULL,
};
#endif