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/** BEGIN COPYRIGHT BLOCK
* This Program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation; version 2 of the License.
*
* This Program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this Program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA.
*
* In addition, as a special exception, Red Hat, Inc. gives You the additional
* right to link the code of this Program with code not covered under the GNU
* General Public License ("Non-GPL Code") and to distribute linked combinations
* including the two, subject to the limitations in this paragraph. Non-GPL Code
* permitted under this exception must only link to the code of this Program
* through those well defined interfaces identified in the file named EXCEPTION
* found in the source code files (the "Approved Interfaces"). The files of
* Non-GPL Code may instantiate templates or use macros or inline functions from
* the Approved Interfaces without causing the resulting work to be covered by
* the GNU General Public License. Only Red Hat, Inc. may make changes or
* additions to the list of Approved Interfaces. You must obey the GNU General
* Public License in all respects for all of the Program code and other code used
* in conjunction with the Program except the Non-GPL Code covered by this
* exception. If you modify this file, you may extend this exception to your
* version of the file, but you are not obligated to do so. If you do not wish to
* provide this exception without modification, you must delete this exception
* statement from your version and license this file solely under the GPL without
* exception.
*
*
* Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
* Copyright (C) 2005 Red Hat, Inc.
* All rights reserved.
* END COPYRIGHT BLOCK **/
/*
* ACL private data structure definitions
*/
#ifndef ACL_PARSER_HEADER
#define ACL_PARSER_HEADER
#include <netsite.h>
#include <plhash.h>
#include <base/pool.h>
#include <base/plist.h>
#include <libaccess/las.h>
#define ACL_TERM_BSIZE 4
#define ACL_FALSE_IDX -2
#define ACL_TRUE_IDX -1
#define ACL_MIN_IDX 0
#define ACL_EXPR_STACK 1024
#define ACL_TABLE_THRESHOLD 10
typedef enum {
ACL_EXPR_OP_AND,
ACL_EXPR_OP_OR,
ACL_EXPR_OP_NOT
} ACLExprOp_t;
typedef struct ACLExprEntry {
char *attr_name; /* LAS name input */
CmpOp_t comparator; /* LAS comparator input */
char *attr_pattern; /* LAS attribute input */
int false_idx; /* index, -1 true, -2 false */
int true_idx; /* index, -1 true, -2 false */
int start_flag; /* marks start of an expr */
void *las_cookie; /* private data store for LAS */
LASEvalFunc_t las_eval_func; /* LAS function */
} ACLExprEntry_t;
typedef struct ACLExprRaw {
char *attr_name; /* expr lval */
CmpOp_t comparator; /* comparator */
char *attr_pattern; /* expr rval */
ACLExprOp_t logical; /* logical operator */
} ACLExprRaw_t;
typedef struct ACLExprStack {
char *expr_text[ACL_EXPR_STACK];
ACLExprRaw_t *expr[ACL_EXPR_STACK];
int stack_index;
int found_subexpression;
int last_subexpression;
} ACLExprStack_t;
typedef struct ACLExprHandle {
char *expr_tag;
char *acl_tag;
int expr_number;
ACLExprType_t expr_type;
int expr_flags;
int expr_argc;
char **expr_argv;
PList_t expr_auth;
ACLExprEntry_t *expr_arry;
int expr_arry_size;
int expr_term_index;
ACLExprRaw_t *expr_raw;
int expr_raw_index;
int expr_raw_size;
struct ACLExprHandle *expr_next; /* Null-terminated */
} ACLExprHandle_t;
typedef struct ACLHandle {
int ref_count;
char *tag;
PFlags_t flags;
char *las_name;
pblock *pb;
char **attr_name;
int expr_count;
ACLExprHandle_t *expr_list_head; /* Null-terminated */
ACLExprHandle_t *expr_list_tail;
} ACLHandle_t;
typedef struct ACLWrapper {
ACLHandle_t *acl;
struct ACLWrapper *wrap_next;
} ACLWrapper_t;
#define ACL_LIST_STALE 0x1
#define ACL_LIST_IS_STALE(x) ((x)->flags & ACL_LIST_STALE)
typedef struct ACLListHandle {
ACLWrapper_t *acl_list_head; /* Null-terminated */
ACLWrapper_t *acl_list_tail; /* Null-terminated */
int acl_count;
void *acl_sym_table;
void *cache;
uint32 flags;
int ref_count;
} ACLListHandle_t;
typedef struct ACLAceNumEntry {
int acenum;
struct ACLAceNumEntry *next;
struct ACLAceNumEntry *chain; /* only used for freeing memory */
} ACLAceNumEntry_t;
typedef struct ACLAceEntry {
ACLExprHandle_t *acep;
/* Array of auth block ptrs for all the expr
clauses in this ACE */
PList_t *autharray;
/* PList with auth blocks for ALL attributes */
PList_t global_auth;
struct ACLAceEntry *next; /* Null-terminated list */
} ACLAceEntry_t;
typedef struct PropList PropList_t;
typedef struct ACLEvalHandle {
pool_handle_t *pool;
ACLListHandle_t *acllist;
PList_t subject;
PList_t resource;
int default_result;
} ACLEvalHandle_t;
typedef struct ACLListCache {
/* Hash table for all access rights used in all acls in this list. Each
* hash entry has a list of ACE numbers that relate to this referenced
* access right.
*/
PLHashTable *Table;
char *deny_response;
char *deny_type;
ACLAceEntry_t *acelist; /* Evaluation order
* list of all ACEs
*/
ACLAceNumEntry_t *chain_head; /* Chain of all Ace num
* entries for this
* ACL list so we can free them
*/
ACLAceNumEntry_t *chain_tail;
} ACLListCache_t;
/* this is to speed up acl_to_str_append */
typedef struct acl_string_s {
char * str;
long str_size;
long str_len;
} acl_string_t;
NSPR_BEGIN_EXTERN_C
extern int ACL_ExprDisplay( ACLExprHandle_t *acl_expr );
extern int ACL_AssertAcl( ACLHandle_t *acl );
extern int ACL_EvalDestroyContext ( ACLListCache_t *cache );
extern time_t *acl_get_req_time(PList_t resource);
NSPR_END_EXTERN_C
#endif
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