308 lines
7.1 KiB
C
308 lines
7.1 KiB
C
/*-
|
|
* Copyright (c) 2002-2003 Networks Associates Technology, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed for the FreeBSD Project by ThinkSec AS and
|
|
* Network Associates Laboratories, the Security Research Division of
|
|
* Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
|
|
* ("CBOSS"), as part of the DARPA CHATS research program.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote
|
|
* products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $P4: //depot/projects/openpam/include/security/openpam.h#24 $
|
|
*/
|
|
|
|
#ifndef _SECURITY_OPENPAM_H_INCLUDED
|
|
#define _SECURITY_OPENPAM_H_INCLUDED
|
|
|
|
/*
|
|
* Annoying but necessary header pollution
|
|
*/
|
|
#include <stdarg.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
struct passwd;
|
|
|
|
/*
|
|
* API extensions
|
|
*/
|
|
int
|
|
openpam_borrow_cred(pam_handle_t *_pamh,
|
|
const struct passwd *_pwd);
|
|
|
|
void
|
|
openpam_free_data(pam_handle_t *_pamh,
|
|
void *_data,
|
|
int _status);
|
|
|
|
const char *
|
|
openpam_get_option(pam_handle_t *_pamh,
|
|
const char *_option);
|
|
|
|
int
|
|
openpam_restore_cred(pam_handle_t *_pamh);
|
|
|
|
int
|
|
openpam_set_option(pam_handle_t *_pamh,
|
|
const char *_option,
|
|
const char *_value);
|
|
|
|
int
|
|
pam_error(pam_handle_t *_pamh,
|
|
const char *_fmt,
|
|
...);
|
|
|
|
int
|
|
pam_get_authtok(pam_handle_t *_pamh,
|
|
int _item,
|
|
const char **_authtok,
|
|
const char *_prompt);
|
|
|
|
int
|
|
pam_info(pam_handle_t *_pamh,
|
|
const char *_fmt,
|
|
...);
|
|
|
|
int
|
|
pam_prompt(pam_handle_t *_pamh,
|
|
int _style,
|
|
char **_resp,
|
|
const char *_fmt,
|
|
...);
|
|
|
|
int
|
|
pam_setenv(pam_handle_t *_pamh,
|
|
const char *_name,
|
|
const char *_value,
|
|
int _overwrite);
|
|
|
|
int
|
|
pam_vinfo(pam_handle_t *_pamh,
|
|
const char *_fmt,
|
|
va_list _ap);
|
|
|
|
int
|
|
pam_verror(pam_handle_t *_pamh,
|
|
const char *_fmt,
|
|
va_list _ap);
|
|
|
|
int
|
|
pam_vprompt(pam_handle_t *_pamh,
|
|
int _style,
|
|
char **_resp,
|
|
const char *_fmt,
|
|
va_list _ap);
|
|
|
|
/*
|
|
* Read cooked lines.
|
|
* Checking for FOPEN_MAX is a fairly reliable way to detect the presence
|
|
* of <stdio.h>
|
|
*/
|
|
#ifdef FOPEN_MAX
|
|
char *
|
|
openpam_readline(FILE *_f,
|
|
int *_lineno,
|
|
size_t *_lenp);
|
|
#endif
|
|
|
|
/*
|
|
* Log levels
|
|
*/
|
|
enum {
|
|
PAM_LOG_DEBUG,
|
|
PAM_LOG_VERBOSE,
|
|
PAM_LOG_NOTICE,
|
|
PAM_LOG_ERROR
|
|
};
|
|
|
|
/*
|
|
* Log to syslog
|
|
*/
|
|
void
|
|
_openpam_log(int _level,
|
|
const char *_func,
|
|
const char *_fmt,
|
|
...);
|
|
|
|
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
|
|
#define openpam_log(lvl, ...) \
|
|
_openpam_log((lvl), __func__, __VA_ARGS__)
|
|
#elif defined(__GNUC__) && (__GNUC__ >= 3)
|
|
#define openpam_log(lvl, ...) \
|
|
_openpam_log((lvl), __func__, __VA_ARGS__)
|
|
#elif defined(__GNUC__) && (__GNUC__ >= 2) && (__GNUC_MINOR__ >= 95)
|
|
#define openpam_log(lvl, fmt...) \
|
|
_openpam_log((lvl), __func__, ##fmt)
|
|
#elif defined(__GNUC__) && defined(__FUNCTION__)
|
|
#define openpam_log(lvl, fmt...) \
|
|
_openpam_log((lvl), __FUNCTION__, ##fmt)
|
|
#else
|
|
void
|
|
openpam_log(int _level,
|
|
const char *_format,
|
|
...);
|
|
#endif
|
|
|
|
/*
|
|
* Generic conversation function
|
|
*/
|
|
struct pam_message;
|
|
struct pam_response;
|
|
int openpam_ttyconv(int _n,
|
|
const struct pam_message **_msg,
|
|
struct pam_response **_resp,
|
|
void *_data);
|
|
|
|
/*
|
|
* Null conversation function
|
|
*/
|
|
int openpam_nullconv(int _n,
|
|
const struct pam_message **_msg,
|
|
struct pam_response **_resp,
|
|
void *_data);
|
|
|
|
/*
|
|
* PAM primitives
|
|
*/
|
|
enum {
|
|
PAM_SM_AUTHENTICATE,
|
|
PAM_SM_SETCRED,
|
|
PAM_SM_ACCT_MGMT,
|
|
PAM_SM_OPEN_SESSION,
|
|
PAM_SM_CLOSE_SESSION,
|
|
PAM_SM_CHAUTHTOK,
|
|
/* keep this last */
|
|
PAM_NUM_PRIMITIVES
|
|
};
|
|
|
|
/*
|
|
* Dummy service module function
|
|
*/
|
|
#define PAM_SM_DUMMY(type) \
|
|
PAM_EXTERN int \
|
|
pam_sm_##type(pam_handle_t *pamh, int flags, \
|
|
int argc, const char *argv[]) \
|
|
{ \
|
|
return (PAM_IGNORE); \
|
|
}
|
|
|
|
/*
|
|
* PAM service module functions match this typedef
|
|
*/
|
|
struct pam_handle;
|
|
typedef int (*pam_func_t)(struct pam_handle *, int, int, const char **);
|
|
|
|
/*
|
|
* A struct that describes a module.
|
|
*/
|
|
typedef struct pam_module pam_module_t;
|
|
struct pam_module {
|
|
char *path;
|
|
pam_func_t func[PAM_NUM_PRIMITIVES];
|
|
void *dlh;
|
|
int refcount;
|
|
pam_module_t *prev;
|
|
pam_module_t *next;
|
|
};
|
|
|
|
/*
|
|
* Source-code compatibility with Linux-PAM modules
|
|
*/
|
|
#if defined(PAM_SM_AUTH) || defined(PAM_SM_ACCOUNT) || \
|
|
defined(PAM_SM_SESSION) || defined(PAM_SM_PASSWORD)
|
|
#define LINUX_PAM_MODULE
|
|
#endif
|
|
#if defined(LINUX_PAM_MODULE) && !defined(PAM_SM_AUTH)
|
|
#define _PAM_SM_AUTHENTICATE 0
|
|
#define _PAM_SM_SETCRED 0
|
|
#else
|
|
#undef PAM_SM_AUTH
|
|
#define PAM_SM_AUTH
|
|
#define _PAM_SM_AUTHENTICATE pam_sm_authenticate
|
|
#define _PAM_SM_SETCRED pam_sm_setcred
|
|
#endif
|
|
#if defined(LINUX_PAM_MODULE) && !defined(PAM_SM_ACCOUNT)
|
|
#define _PAM_SM_ACCT_MGMT 0
|
|
#else
|
|
#undef PAM_SM_ACCOUNT
|
|
#define PAM_SM_ACCOUNT
|
|
#define _PAM_SM_ACCT_MGMT pam_sm_acct_mgmt
|
|
#endif
|
|
#if defined(LINUX_PAM_MODULE) && !defined(PAM_SM_SESSION)
|
|
#define _PAM_SM_OPEN_SESSION 0
|
|
#define _PAM_SM_CLOSE_SESSION 0
|
|
#else
|
|
#undef PAM_SM_SESSION
|
|
#define PAM_SM_SESSION
|
|
#define _PAM_SM_OPEN_SESSION pam_sm_open_session
|
|
#define _PAM_SM_CLOSE_SESSION pam_sm_close_session
|
|
#endif
|
|
#if defined(LINUX_PAM_MODULE) && !defined(PAM_SM_PASSWORD)
|
|
#define _PAM_SM_CHAUTHTOK 0
|
|
#else
|
|
#undef PAM_SM_PASSWORD
|
|
#define PAM_SM_PASSWORD
|
|
#define _PAM_SM_CHAUTHTOK pam_sm_chauthtok
|
|
#endif
|
|
|
|
/*
|
|
* Infrastructure for static modules using GCC linker sets.
|
|
* You are not expected to understand this.
|
|
*/
|
|
#if defined(__FreeBSD__)
|
|
#define PAM_SOEXT ".so"
|
|
#else
|
|
#ifndef NO_STATIC_MODULES
|
|
#define NO_STATIC_MODULES
|
|
#endif
|
|
#endif
|
|
#if defined(__GNUC__) && !defined(__PIC__) && !defined(NO_STATIC_MODULES)
|
|
/* gcc, static linking */
|
|
#include <sys/cdefs.h>
|
|
#include <linker_set.h>
|
|
#define OPENPAM_STATIC_MODULES
|
|
#define PAM_EXTERN static
|
|
#define PAM_MODULE_ENTRY(name) \
|
|
static char _pam_name[] = name PAM_SOEXT; \
|
|
static struct pam_module _pam_module = { _pam_name, { \
|
|
_PAM_SM_AUTHENTICATE, _PAM_SM_SETCRED, _PAM_SM_ACCT_MGMT, \
|
|
_PAM_SM_OPEN_SESSION, _PAM_SM_CLOSE_SESSION, _PAM_SM_CHAUTHTOK }, \
|
|
NULL, 0, NULL, NULL }; \
|
|
DATA_SET(_openpam_static_modules, _pam_module)
|
|
#else
|
|
/* normal case */
|
|
#define PAM_EXTERN
|
|
#define PAM_MODULE_ENTRY(name)
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|