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/* pam_warn module */
/*
* $Id$
*
* Written by Andrew Morgan <morgan@linux.kernel.org> 1996/3/11
*/
#define _BSD_SOURCE
#include <stdio.h>
#include <unistd.h>
#include <syslog.h>
#include <stdarg.h>
/*
* here, we make a definition for the externally accessible function
* in this file (this definition is required for static a module
* but strongly encouraged generally) it is used to instruct the
* modules include file to define the function prototypes.
*/
#define PAM_SM_AUTH
#define PAM_SM_PASSWORD
#include <security/pam_modules.h>
/* some syslogging */
#define OBTAIN(item, value, default_value) do { \
(void) pam_get_item(pamh, item, (const void **) &value); \
value = value ? value : default_value ; \
} while (0)
static void _pam_log(int err, const char *format, ...)
{
va_list args;
va_start(args, format);
openlog("PAM-warn", LOG_CONS|LOG_PID, LOG_AUTH);
vsyslog(err, format, args);
va_end(args);
closelog();
}
static void log_items(pam_handle_t *pamh, const char *function)
{
const char *service=NULL, *user=NULL, *terminal=NULL,
*rhost=NULL, *ruser=NULL;
OBTAIN(PAM_SERVICE, service, "<unknown>");
OBTAIN(PAM_TTY, terminal, "<unknown>");
OBTAIN(PAM_USER, user, "<unknown>");
OBTAIN(PAM_RUSER, ruser, "<unknown>");
OBTAIN(PAM_RHOST, rhost, "<unknown>");
_pam_log(LOG_NOTICE, "function=[%s] service=[%s] terminal=[%s] user=[%s]"
" ruser=[%s] rhost=[%s]\n",
function, service, terminal, user, ruser, rhost);
}
/* --- authentication management functions (only) --- */
PAM_EXTERN
int pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc,
const char **argv)
{
log_items(pamh, __FUNCTION__);
return PAM_IGNORE;
}
PAM_EXTERN
int pam_sm_setcred(pam_handle_t *pamh, int flags, int argc, const char **argv)
{
log_items(pamh, __FUNCTION__);
return PAM_IGNORE;
}
/* password updating functions */
PAM_EXTERN
int pam_sm_chauthtok(pam_handle_t *pamh,int flags,int argc,const char **argv)
{
log_items(pamh, __FUNCTION__);
return PAM_IGNORE;
}
PAM_EXTERN int
pam_sm_acct_mgmt (pam_handle_t *pamh, int flags, int argc, const char **argv)
{
log_items(pamh, __FUNCTION__);
return PAM_IGNORE;
}
PAM_EXTERN int
pam_sm_open_session (pam_handle_t *pamh, int flags, int argc,
const char **argv)
{
log_items(pamh, __FUNCTION__);
return PAM_IGNORE;
}
PAM_EXTERN int
pam_sm_close_session (pam_handle_t *pamh, int flags, int argc,
const char **argv)
{
log_items(pamh, __FUNCTION__);
return PAM_IGNORE;
}
#ifdef PAM_STATIC
/* static module data */
struct pam_module _pam_warn_modstruct = {
"pam_warn",
pam_sm_authenticate,
pam_sm_setcred,
pam_sm_acct_mgmt,
pam_sm_open_session,
pam_sm_close_session,
pam_sm_chauthtok,
};
#endif
/* end of module definition */
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