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/*
* $Header$
*
* Copyright 2006 Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*/
#define KRB5_PRIVATE 1
#include <pthread.h>
#include <stdarg.h>
#include <krb5/krb5.h>
#include <profile.h>
#include "kim_private.h"
#include "kim_os_private.h"
/* ------------------------------------------------------------------------ */
void __kim_library_debug_printf (kim_string in_function,
kim_string in_format,
...)
{
kim_error err = KIM_NO_ERROR;
kim_string format = NULL;
kim_string string = NULL;
if (!err && !in_function) { err = param_error (1, "in_function", "NULL"); }
if (!err && !in_format ) { err = param_error (2, "in_format", "NULL"); }
if (!err) {
err = kim_string_create_from_format (&format, "%s(): %s", in_function, in_format);
}
if (!err) {
va_list args;
va_start (args, in_format);
err = kim_string_create_from_format_va (&string, format, args);
va_end (args);
}
if (!err) {
kim_os_library_debug_print (string);
}
kim_string_free (&format);
kim_string_free (&string);
kim_error_free (&err);
}
#pragma mark -- Allow Home Directory Access --
static pthread_mutex_t g_allow_home_directory_access_mutex = PTHREAD_MUTEX_INITIALIZER;
kim_boolean g_allow_home_directory_access = TRUE;
/* ------------------------------------------------------------------------ */
kim_error kim_library_set_allow_home_directory_access (kim_boolean in_allow_access)
{
kim_error err = KIM_NO_ERROR;
int mutex_err = pthread_mutex_lock (&g_allow_home_directory_access_mutex);
if (mutex_err) { err = os_error (mutex_err); }
if (!err) {
g_allow_home_directory_access = in_allow_access;
}
if (!mutex_err) { pthread_mutex_unlock (&g_allow_home_directory_access_mutex); }
return check_error (err);
}
/* ------------------------------------------------------------------------ */
kim_error kim_library_get_allow_home_directory_access (kim_boolean *out_allow_access)
{
kim_error err = KIM_NO_ERROR;
int mutex_err = 0;
if (!err && !out_allow_access) { err = param_error (3, "out_allow_access", "NULL"); }
if (!err) {
mutex_err = pthread_mutex_lock (&g_allow_home_directory_access_mutex);;
if (mutex_err) { err = os_error (mutex_err); }
}
if (!err) {
*out_allow_access = g_allow_home_directory_access;
}
if (!mutex_err) { pthread_mutex_unlock (&g_allow_home_directory_access_mutex); }
return check_error (err);
}
/* ------------------------------------------------------------------------ */
kim_boolean kim_library_allow_home_directory_access (void)
{
kim_boolean allow_access = FALSE;
kim_error err = kim_library_get_allow_home_directory_access (&allow_access);
kim_error_free (&err);
return allow_access;
}
#pragma mark -- Allow Automatic Prompting --
static pthread_mutex_t g_allow_automatic_prompting_mutex = PTHREAD_MUTEX_INITIALIZER;
kim_boolean g_allow_automatic_prompting = TRUE;
/* ------------------------------------------------------------------------ */
kim_error kim_library_set_allow_automatic_prompting (kim_boolean in_allow_automatic_prompting)
{
kim_error err = KIM_NO_ERROR;
int mutex_err = pthread_mutex_lock (&g_allow_automatic_prompting_mutex);
if (mutex_err) { err = os_error (mutex_err); }
if (!err) {
g_allow_automatic_prompting = in_allow_automatic_prompting;
}
if (!mutex_err) { pthread_mutex_unlock (&g_allow_automatic_prompting_mutex); }
return check_error (err);
}
/* ------------------------------------------------------------------------ */
kim_error kim_library_get_allow_automatic_prompting (kim_boolean *out_allow_automatic_prompting)
{
kim_error err = KIM_NO_ERROR;
int mutex_err = 0;
if (!err && !out_allow_automatic_prompting) { err = param_error (3, "out_allow_automatic_prompting", "NULL"); }
if (!err) {
mutex_err = pthread_mutex_lock (&g_allow_automatic_prompting_mutex);;
if (mutex_err) { err = os_error (mutex_err); }
}
if (!err) {
*out_allow_automatic_prompting = g_allow_automatic_prompting;
}
if (!mutex_err) { pthread_mutex_unlock (&g_allow_automatic_prompting_mutex); }
return check_error (err);
}
/* ------------------------------------------------------------------------ */
kim_boolean kim_library_allow_automatic_prompting (void)
{
kim_boolean allow_automatic_prompting = TRUE;
kim_error err = kim_library_get_allow_automatic_prompting (&allow_automatic_prompting);
if (allow_automatic_prompting && getenv ("KERBEROSLOGIN_NEVER_PROMPT")) {
kim_debug_printf ("KERBEROSLOGIN_NEVER_PROMPT is set.");
allow_automatic_prompting = FALSE;
}
if (allow_automatic_prompting && getenv ("KIM_NEVER_PROMPT")) {
kim_debug_printf ("KIM_NEVER_PROMPT is set.");
allow_automatic_prompting = FALSE;
}
if (allow_automatic_prompting) {
/* Make sure there is at least 1 config file. We don't support DNS
* domain-realm lookup, so if there is no config, Kerberos won't work. */
kim_boolean kerberos_config_exists = FALSE;
char **files = NULL;
profile_t profile = NULL;
if (krb5_get_default_config_files (&files) == 0) {
if (profile_init ((const_profile_filespec_t *) files, &profile) == 0) {
kerberos_config_exists = TRUE;
}
}
if (!kerberos_config_exists) {
kim_debug_printf ("No valid config file.");
allow_automatic_prompting = FALSE;
}
if (profile) { profile_abandon (profile); }
if (files ) { krb5_free_config_files (files); }
}
kim_error_free (&err);
return allow_automatic_prompting;
}
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