NetBSD/dist/openpam/lib/openpam_impl.h

205 lines
5.6 KiB
C

/*-
* Copyright (c) 2001-2003 Networks Associates Technology, Inc.
* Copyright (c) 2004-2007 Dag-Erling Smørgrav
* 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.
*
* $Id: openpam_impl.h,v 1.5 2008/01/27 01:22:59 christos Exp $
*/
#ifndef _OPENPAM_IMPL_H_INCLUDED
#define _OPENPAM_IMPL_H_INCLUDED
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <security/openpam.h>
extern const char *_pam_func_name[PAM_NUM_PRIMITIVES];
extern const char *_pam_sm_func_name[PAM_NUM_PRIMITIVES];
extern const char *_pam_err_name[PAM_NUM_ERRORS];
extern const char *_pam_item_name[PAM_NUM_ITEMS];
extern int _openpam_debug;
/*
* Control flags
*/
typedef enum {
PAM_BINDING,
PAM_REQUIRED,
PAM_REQUISITE,
PAM_SUFFICIENT,
PAM_OPTIONAL,
PAM_NUM_CONTROL_FLAGS
} pam_control_t;
/*
* Facilities
*/
typedef enum {
PAM_FACILITY_ANY = -1,
PAM_AUTH = 0,
PAM_ACCOUNT,
PAM_SESSION,
PAM_PASSWORD,
PAM_NUM_FACILITIES
} pam_facility_t;
typedef struct pam_chain pam_chain_t;
struct pam_chain {
pam_module_t *module;
int flag;
int optc;
char **optv;
pam_chain_t *next;
};
typedef struct pam_data pam_data_t;
struct pam_data {
char *name;
void *data;
void (*cleanup)(pam_handle_t *, void *, int);
pam_data_t *next;
};
struct pam_handle {
char *service;
/* chains */
pam_chain_t *chains[PAM_NUM_FACILITIES];
pam_chain_t *current;
int primitive;
/* items and data */
void *item[PAM_NUM_ITEMS];
pam_data_t *module_data;
/* environment list */
char **env;
int env_count;
int env_size;
};
#ifdef NGROUPS_MAX
#define PAM_SAVED_CRED "pam_saved_cred"
struct pam_saved_cred {
uid_t euid;
gid_t egid;
gid_t groups[NGROUPS_MAX];
int ngroups;
};
#endif
#define PAM_OTHER "other"
int openpam_configure(pam_handle_t *, const char *);
int openpam_dispatch(pam_handle_t *, int, int);
int openpam_findenv(pam_handle_t *, const char *, size_t);
pam_module_t *openpam_load_module(const char *);
void openpam_clear_chains(pam_chain_t **);
#ifdef OPENPAM_STATIC_MODULES
pam_module_t *openpam_static(const char *);
#endif
pam_module_t *openpam_dynamic(const char *);
#define FREE(p) do { free((p)); (p) = NULL; } while (/*CONSTCOND*/0)
#ifdef DEBUG
#define ENTER() openpam_log(PAM_LOG_DEBUG, "entering")
#define ENTERI(i) do { \
int _i = (i); \
if (_i > 0 && _i < PAM_NUM_ITEMS) \
openpam_log(PAM_LOG_DEBUG, "entering: %s", _pam_item_name[_i]); \
else \
openpam_log(PAM_LOG_DEBUG, "entering: %d", _i); \
} while (/*CONSTCOND*/0)
#define ENTERN(n) do { \
int _n = (n); \
openpam_log(PAM_LOG_DEBUG, "entering: %d", _n); \
} while (/*CONSTCOND*/0)
#define ENTERS(s) do { \
const char *_s = (s); \
if (_s == NULL) \
openpam_log(PAM_LOG_DEBUG, "entering: NULL"); \
else \
openpam_log(PAM_LOG_DEBUG, "entering: '%s'", _s); \
} while (/*CONSTCOND*/0)
#define RETURNV() openpam_log(PAM_LOG_DEBUG, "returning")
#define RETURNC(c) do { \
int _c = (c); \
if (_c >= 0 && _c < PAM_NUM_ERRORS) \
openpam_log(PAM_LOG_DEBUG, "returning %s", _pam_err_name[_c]); \
else \
openpam_log(PAM_LOG_DEBUG, "returning %d!", _c); \
return (_c); \
/*NOTREACHED*/ \
} while (/*CONSTCOND*/0)
#define RETURNN(n) do { \
int _n = (n); \
openpam_log(PAM_LOG_DEBUG, "returning %d", _n); \
return (_n); \
/*NOTREACHED*/ \
} while (/*CONSTCOND*/0)
#define RETURNP(p) do { \
const void *_p = (p); \
if (_p == NULL) \
openpam_log(PAM_LOG_DEBUG, "returning NULL"); \
else \
openpam_log(PAM_LOG_DEBUG, "returning %p", _p); \
return (p); \
/*NOTREACHED*/ \
} while (/*CONSTCOND*/0)
#define RETURNS(s) do { \
const char *_s = (s); \
if (_s == NULL) \
openpam_log(PAM_LOG_DEBUG, "returning NULL"); \
else \
openpam_log(PAM_LOG_DEBUG, "returning '%s'", _s); \
return (_s); \
/*NOTREACHED*/ \
} while (/*CONSTCOND*/0)
#else
#define ENTER()
#define ENTERI(i)
#define ENTERN(n)
#define ENTERS(s)
#define RETURNV() return
#define RETURNC(c) return (c)
#define RETURNN(n) return (n)
#define RETURNP(p) return (p)
#define RETURNS(s) return (s)
#endif
#endif