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/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 1998-2018 The OpenLDAP Foundation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
/* Portions Copyright (c) 1990 Regents of the University of Michigan.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and that due credit is given
* to the University of Michigan at Ann Arbor. The name of the University
* may not be used to endorse or promote products derived from this
* software without specific prior written permission. This software
* is provided ``as is'' without express or implied warranty.
*/
#ifndef _LBER_H
#define _LBER_H
#include <lber_types.h>
#include <string.h>
LDAP_BEGIN_DECL
/*
* ber_tag_t represents the identifier octets at the beginning of BER
* elements. OpenLDAP treats them as mere big-endian unsigned integers.
*
* Actually the BER identifier octets look like this:
*
* Bits of 1st octet:
* ______
* 8 7 | CLASS
* 0 0 = UNIVERSAL
* 0 1 = APPLICATION
* 1 0 = CONTEXT-SPECIFIC
* 1 1 = PRIVATE
* _____
* | 6 | DATA-TYPE
* 0 = PRIMITIVE
* 1 = CONSTRUCTED
* ___________
* | 5 ... 1 | TAG-NUMBER
*
* For ASN.1 tag numbers >= 0x1F, TAG-NUMBER above is 0x1F and the next
* BER octets contain the actual ASN.1 tag number: Big-endian, base
* 128, 8.bit = 1 in all but the last octet, minimum number of octets.
*/
/* BER classes and mask (in 1st identifier octet) */
#define LBER_CLASS_UNIVERSAL ((ber_tag_t) 0x00U)
#define LBER_CLASS_APPLICATION ((ber_tag_t) 0x40U)
#define LBER_CLASS_CONTEXT ((ber_tag_t) 0x80U)
#define LBER_CLASS_PRIVATE ((ber_tag_t) 0xc0U)
#define LBER_CLASS_MASK ((ber_tag_t) 0xc0U)
/* BER encoding type and mask (in 1st identifier octet) */
#define LBER_PRIMITIVE ((ber_tag_t) 0x00U)
#define LBER_CONSTRUCTED ((ber_tag_t) 0x20U)
#define LBER_ENCODING_MASK ((ber_tag_t) 0x20U)
#define LBER_BIG_TAG_MASK ((ber_tag_t) 0x1fU)
#define LBER_MORE_TAG_MASK ((ber_tag_t) 0x80U)
/*
* LBER_ERROR and LBER_DEFAULT are values that can never appear
* as valid BER tags, so it is safe to use them to report errors.
* Valid tags have (tag & (ber_tag_t) 0xFF) != 0xFF.
*/
#define LBER_ERROR ((ber_tag_t) -1)
#define LBER_DEFAULT ((ber_tag_t) -1)
/* general BER types we know about */
#define LBER_BOOLEAN ((ber_tag_t) 0x01UL)
#define LBER_INTEGER ((ber_tag_t) 0x02UL)
#define LBER_BITSTRING ((ber_tag_t) 0x03UL)
#define LBER_OCTETSTRING ((ber_tag_t) 0x04UL)
#define LBER_NULL ((ber_tag_t) 0x05UL)
#define LBER_ENUMERATED ((ber_tag_t) 0x0aUL)
#define LBER_SEQUENCE ((ber_tag_t) 0x30UL) /* constructed */
#define LBER_SET ((ber_tag_t) 0x31UL) /* constructed */
/* LBER BerElement options */
#define LBER_USE_DER 0x01
/* get/set options for BerElement */
#define LBER_OPT_BER_OPTIONS 0x01
#define LBER_OPT_BER_DEBUG 0x02
#define LBER_OPT_BER_REMAINING_BYTES 0x03
#define LBER_OPT_BER_TOTAL_BYTES 0x04
#define LBER_OPT_BER_BYTES_TO_WRITE 0x05
#define LBER_OPT_BER_MEMCTX 0x06
#define LBER_OPT_DEBUG_LEVEL LBER_OPT_BER_DEBUG
#define LBER_OPT_REMAINING_BYTES LBER_OPT_BER_REMAINING_BYTES
#define LBER_OPT_TOTAL_BYTES LBER_OPT_BER_TOTAL_BYTES
#define LBER_OPT_BYTES_TO_WRITE LBER_OPT_BER_BYTES_TO_WRITE
#define LBER_OPT_LOG_PRINT_FN 0x8001
#define LBER_OPT_MEMORY_FNS 0x8002
#define LBER_OPT_ERROR_FN 0x8003
#define LBER_OPT_LOG_PRINT_FILE 0x8004
/* get/set Memory Debug options */
#define LBER_OPT_MEMORY_INUSE 0x8005 /* for memory debugging */
#define LBER_OPT_LOG_PROC 0x8006 /* for external logging function */
typedef int* (*BER_ERRNO_FN) LDAP_P(( void ));
typedef void (*BER_LOG_PRINT_FN) LDAP_P(( LDAP_CONST char *buf ));
typedef void* (BER_MEMALLOC_FN) LDAP_P(( ber_len_t size, void *ctx ));
typedef void* (BER_MEMCALLOC_FN) LDAP_P(( ber_len_t n, ber_len_t size, void *ctx ));
typedef void* (BER_MEMREALLOC_FN) LDAP_P(( void *p, ber_len_t size, void *ctx ));
typedef void (BER_MEMFREE_FN) LDAP_P(( void *p, void *ctx ));
typedef struct lber_memory_fns {
BER_MEMALLOC_FN *bmf_malloc;
BER_MEMCALLOC_FN *bmf_calloc;
BER_MEMREALLOC_FN *bmf_realloc;
BER_MEMFREE_FN *bmf_free;
} BerMemoryFunctions;
/* LBER Sockbuf_IO options */
#define LBER_SB_OPT_GET_FD 1
#define LBER_SB_OPT_SET_FD 2
#define LBER_SB_OPT_HAS_IO 3
#define LBER_SB_OPT_SET_NONBLOCK 4
#define LBER_SB_OPT_GET_SSL 7
#define LBER_SB_OPT_DATA_READY 8
#define LBER_SB_OPT_SET_READAHEAD 9
#define LBER_SB_OPT_DRAIN 10
#define LBER_SB_OPT_NEEDS_READ 11
#define LBER_SB_OPT_NEEDS_WRITE 12
#define LBER_SB_OPT_GET_MAX_INCOMING 13
#define LBER_SB_OPT_SET_MAX_INCOMING 14
/* Only meaningful ifdef LDAP_PF_LOCAL_SENDMSG */
#define LBER_SB_OPT_UNGET_BUF 15
/* Largest option used by the library */
#define LBER_SB_OPT_OPT_MAX 15
/* LBER IO operations stacking levels */
#define LBER_SBIOD_LEVEL_PROVIDER 10
#define LBER_SBIOD_LEVEL_TRANSPORT 20
#define LBER_SBIOD_LEVEL_APPLICATION 30
/* get/set options for Sockbuf */
#define LBER_OPT_SOCKBUF_DESC 0x1000
#define LBER_OPT_SOCKBUF_OPTIONS 0x1001
#define LBER_OPT_SOCKBUF_DEBUG 0x1002
/* on/off values */
LBER_V( char ) ber_pvt_opt_on;
#define LBER_OPT_ON ((void *) &ber_pvt_opt_on)
#define LBER_OPT_OFF ((void *) 0)
#define LBER_OPT_SUCCESS (0)
#define LBER_OPT_ERROR (-1)
typedef struct berelement BerElement;
typedef struct sockbuf Sockbuf;
typedef struct sockbuf_io Sockbuf_IO;
/* Structure for LBER IO operation descriptor */
typedef struct sockbuf_io_desc {
int sbiod_level;
Sockbuf *sbiod_sb;
Sockbuf_IO *sbiod_io;
void *sbiod_pvt;
struct sockbuf_io_desc *sbiod_next;
} Sockbuf_IO_Desc;
/* Structure for LBER IO operation functions */
struct sockbuf_io {
int (*sbi_setup)( Sockbuf_IO_Desc *sbiod, void *arg );
int (*sbi_remove)( Sockbuf_IO_Desc *sbiod );
int (*sbi_ctrl)( Sockbuf_IO_Desc *sbiod, int opt, void *arg);
ber_slen_t (*sbi_read)( Sockbuf_IO_Desc *sbiod, void *buf,
ber_len_t len );
ber_slen_t (*sbi_write)( Sockbuf_IO_Desc *sbiod, void *buf,
ber_len_t len );
int (*sbi_close)( Sockbuf_IO_Desc *sbiod );
};
/* Helper macros for LBER IO functions */
#define LBER_SBIOD_READ_NEXT( sbiod, buf, len ) \
( (sbiod)->sbiod_next->sbiod_io->sbi_read( (sbiod)->sbiod_next, \
buf, len ) )
#define LBER_SBIOD_WRITE_NEXT( sbiod, buf, len ) \
( (sbiod)->sbiod_next->sbiod_io->sbi_write( (sbiod)->sbiod_next, \
buf, len ) )
#define LBER_SBIOD_CTRL_NEXT( sbiod, opt, arg ) \
( (sbiod)->sbiod_next ? \
( (sbiod)->sbiod_next->sbiod_io->sbi_ctrl( \
(sbiod)->sbiod_next, opt, arg ) ) : 0 )
/* structure for returning a sequence of octet strings + length */
typedef struct berval {
ber_len_t bv_len;
char *bv_val;
} BerValue;
typedef BerValue *BerVarray; /* To distinguish from a single bv */
/* this should be moved to lber-int.h */
/*
* in bprint.c:
*/
LBER_F( void )
ber_error_print LDAP_P((
LDAP_CONST char *data ));
LBER_F( void )
ber_bprint LDAP_P((
LDAP_CONST char *data, ber_len_t len ));
LBER_F( void )
ber_dump LDAP_P((
BerElement *ber, int inout ));
/*
* in decode.c:
*/
typedef int (*BERDecodeCallback) LDAP_P((
BerElement *ber,
void *data,
int mode ));
LBER_F( ber_tag_t )
ber_get_tag LDAP_P((
BerElement *ber ));
LBER_F( ber_tag_t )
ber_skip_tag LDAP_P((
BerElement *ber,
ber_len_t *len ));
LBER_F( ber_tag_t )
ber_peek_tag LDAP_P((
BerElement *ber,
ber_len_t *len ));
LBER_F( ber_tag_t )
ber_skip_element LDAP_P((
BerElement *ber,
struct berval *bv ));
LBER_F( ber_tag_t )
ber_peek_element LDAP_P((
LDAP_CONST BerElement *ber,
struct berval *bv ));
LBER_F( ber_tag_t )
ber_get_int LDAP_P((
BerElement *ber,
ber_int_t *num ));
LBER_F( ber_tag_t )
ber_get_enum LDAP_P((
BerElement *ber,
ber_int_t *num ));
LBER_F( ber_tag_t )
ber_get_stringb LDAP_P((
BerElement *ber,
char *buf,
ber_len_t *len ));
#define LBER_BV_ALLOC 0x01 /* allocate/copy result, otherwise in-place */
#define LBER_BV_NOTERM 0x02 /* omit NUL-terminator if parsing in-place */
#define LBER_BV_STRING 0x04 /* fail if berval contains embedded \0 */
/* LBER_BV_STRING currently accepts a terminating \0 in the berval, because
* Active Directory sends that in at least the diagonsticMessage field.
*/
LBER_F( ber_tag_t )
ber_get_stringbv LDAP_P((
BerElement *ber,
struct berval *bv,
int options ));
LBER_F( ber_tag_t )
ber_get_stringa LDAP_P((
BerElement *ber,
char **buf ));
LBER_F( ber_tag_t )
ber_get_stringal LDAP_P((
BerElement *ber,
struct berval **bv ));
LBER_F( ber_tag_t )
ber_get_bitstringa LDAP_P((
BerElement *ber,
char **buf,
ber_len_t *len ));
LBER_F( ber_tag_t )
ber_get_null LDAP_P((
BerElement *ber ));
LBER_F( ber_tag_t )
ber_get_boolean LDAP_P((
BerElement *ber,
ber_int_t *boolval ));
LBER_F( ber_tag_t )
ber_first_element LDAP_P((
BerElement *ber,
ber_len_t *len,
char **last ));
LBER_F( ber_tag_t )
ber_next_element LDAP_P((
BerElement *ber,
ber_len_t *len,
LDAP_CONST char *last ));
LBER_F( ber_tag_t )
ber_scanf LDAP_P((
BerElement *ber,
LDAP_CONST char *fmt,
... ));
LBER_F( int )
ber_decode_oid LDAP_P((
struct berval *in,
struct berval *out ));
/*
* in encode.c
*/
LBER_F( int )
ber_encode_oid LDAP_P((
struct berval *in,
struct berval *out ));
typedef int (*BEREncodeCallback) LDAP_P((
BerElement *ber,
void *data ));
LBER_F( int )
ber_put_enum LDAP_P((
BerElement *ber,
ber_int_t num,
ber_tag_t tag ));
LBER_F( int )
ber_put_int LDAP_P((
BerElement *ber,
ber_int_t num,
ber_tag_t tag ));
LBER_F( int )
ber_put_ostring LDAP_P((
BerElement *ber,
LDAP_CONST char *str,
ber_len_t len,
ber_tag_t tag ));
LBER_F( int )
ber_put_berval LDAP_P((
BerElement *ber,
struct berval *bv,
ber_tag_t tag ));
LBER_F( int )
ber_put_string LDAP_P((
BerElement *ber,
LDAP_CONST char *str,
ber_tag_t tag ));
LBER_F( int )
ber_put_bitstring LDAP_P((
BerElement *ber,
LDAP_CONST char *str,
ber_len_t bitlen,
ber_tag_t tag ));
LBER_F( int )
ber_put_null LDAP_P((
BerElement *ber,
ber_tag_t tag ));
LBER_F( int )
ber_put_boolean LDAP_P((
BerElement *ber,
ber_int_t boolval,
ber_tag_t tag ));
LBER_F( int )
ber_start_seq LDAP_P((
BerElement *ber,
ber_tag_t tag ));
LBER_F( int )
ber_start_set LDAP_P((
BerElement *ber,
ber_tag_t tag ));
LBER_F( int )
ber_put_seq LDAP_P((
BerElement *ber ));
LBER_F( int )
ber_put_set LDAP_P((
BerElement *ber ));
LBER_F( int )
ber_printf LDAP_P((
BerElement *ber,
LDAP_CONST char *fmt,
... ));
/*
* in io.c:
*/
LBER_F( ber_slen_t )
ber_skip_data LDAP_P((
BerElement *ber,
ber_len_t len ));
LBER_F( ber_slen_t )
ber_read LDAP_P((
BerElement *ber,
char *buf,
ber_len_t len ));
LBER_F( ber_slen_t )
ber_write LDAP_P((
BerElement *ber,
LDAP_CONST char *buf,
ber_len_t len,
int zero )); /* nonzero is unsupported from OpenLDAP 2.4.18 */
LBER_F( void )
ber_free LDAP_P((
BerElement *ber,
int freebuf ));
LBER_F( void )
ber_free_buf LDAP_P(( BerElement *ber ));
LBER_F( int )
ber_flush2 LDAP_P((
Sockbuf *sb,
BerElement *ber,
int freeit ));
#define LBER_FLUSH_FREE_NEVER (0x0) /* traditional behavior */
#define LBER_FLUSH_FREE_ON_SUCCESS (0x1) /* traditional behavior */
#define LBER_FLUSH_FREE_ON_ERROR (0x2)
#define LBER_FLUSH_FREE_ALWAYS (LBER_FLUSH_FREE_ON_SUCCESS|LBER_FLUSH_FREE_ON_ERROR)
LBER_F( int )
ber_flush LDAP_P((
Sockbuf *sb,
BerElement *ber,
int freeit )); /* DEPRECATED */
LBER_F( BerElement * )
ber_alloc LDAP_P(( void )); /* DEPRECATED */
LBER_F( BerElement * )
der_alloc LDAP_P(( void )); /* DEPRECATED */
LBER_F( BerElement * )
ber_alloc_t LDAP_P((
int beroptions ));
LBER_F( BerElement * )
ber_dup LDAP_P((
BerElement *ber ));
LBER_F( ber_tag_t )
ber_get_next LDAP_P((
Sockbuf *sb,
ber_len_t *len,
BerElement *ber ));
LBER_F( void )
ber_init2 LDAP_P((
BerElement *ber,
struct berval *bv,
int options ));
LBER_F( void )
ber_init_w_nullc LDAP_P(( /* DEPRECATED */
BerElement *ber,
int options ));
LBER_F( void )
ber_reset LDAP_P((
BerElement *ber,
int was_writing ));
LBER_F( BerElement * )
ber_init LDAP_P((
struct berval *bv ));
LBER_F( int )
ber_flatten LDAP_P((
BerElement *ber,
struct berval **bvPtr ));
LBER_F( int )
ber_flatten2 LDAP_P((
BerElement *ber,
struct berval *bv,
int alloc ));
LBER_F( int )
ber_remaining LDAP_P((
BerElement *ber ));
/*
* LBER ber accessor functions
*/
LBER_F( int )
ber_get_option LDAP_P((
void *item,
int option,
void *outvalue));
LBER_F( int )
ber_set_option LDAP_P((
void *item,
int option,
LDAP_CONST void *invalue));
/*
* LBER sockbuf.c
*/
LBER_F( Sockbuf * )
ber_sockbuf_alloc LDAP_P((
void ));
LBER_F( void )
ber_sockbuf_free LDAP_P((
Sockbuf *sb ));
LBER_F( int )
ber_sockbuf_add_io LDAP_P((
Sockbuf *sb,
Sockbuf_IO *sbio,
int layer,
void *arg ));
LBER_F( int )
ber_sockbuf_remove_io LDAP_P((
Sockbuf *sb,
Sockbuf_IO *sbio,
int layer ));
LBER_F( int )
ber_sockbuf_ctrl LDAP_P((
Sockbuf *sb,
int opt,
void *arg ));
LBER_V( Sockbuf_IO ) ber_sockbuf_io_tcp;
LBER_V( Sockbuf_IO ) ber_sockbuf_io_readahead;
LBER_V( Sockbuf_IO ) ber_sockbuf_io_fd;
LBER_V( Sockbuf_IO ) ber_sockbuf_io_debug;
LBER_V( Sockbuf_IO ) ber_sockbuf_io_udp;
/*
* LBER memory.c
*/
LBER_F( void * )
ber_memalloc LDAP_P((
ber_len_t s ));
LBER_F( void * )
ber_memrealloc LDAP_P((
void* p,
ber_len_t s ));
LBER_F( void * )
ber_memcalloc LDAP_P((
ber_len_t n,
ber_len_t s ));
LBER_F( void )
ber_memfree LDAP_P((
void* p ));
LBER_F( void )
ber_memvfree LDAP_P((
void** vector ));
LBER_F( void )
ber_bvfree LDAP_P((
struct berval *bv ));
LBER_F( void )
ber_bvecfree LDAP_P((
struct berval **bv ));
LBER_F( int )
ber_bvecadd LDAP_P((
struct berval ***bvec,
struct berval *bv ));
LBER_F( struct berval * )
ber_dupbv LDAP_P((
struct berval *dst, struct berval *src ));
LBER_F( struct berval * )
ber_bvdup LDAP_P((
struct berval *src ));
LBER_F( struct berval * )
ber_mem2bv LDAP_P((
LDAP_CONST char *, ber_len_t len, int duplicate, struct berval *bv));
LBER_F( struct berval * )
ber_str2bv LDAP_P((
LDAP_CONST char *, ber_len_t len, int duplicate, struct berval *bv));
#define ber_bvstr(a) ((ber_str2bv)((a), 0, 0, NULL))
#define ber_bvstrdup(a) ((ber_str2bv)((a), 0, 1, NULL))
LBER_F( char * )
ber_strdup LDAP_P((
LDAP_CONST char * ));
LBER_F( ber_len_t )
ber_strnlen LDAP_P((
LDAP_CONST char *s, ber_len_t len ));
LBER_F( char * )
ber_strndup LDAP_P((
LDAP_CONST char *s, ber_len_t l ));
LBER_F( struct berval * )
ber_bvreplace LDAP_P((
struct berval *dst, LDAP_CONST struct berval *src ));
LBER_F( void )
ber_bvarray_free LDAP_P(( BerVarray p ));
LBER_F( int )
ber_bvarray_add LDAP_P(( BerVarray *p, BerValue *bv ));
#define ber_bvcmp(v1,v2) \
((v1)->bv_len < (v2)->bv_len \
? -1 : ((v1)->bv_len > (v2)->bv_len \
? 1 : memcmp((v1)->bv_val, (v2)->bv_val, (v1)->bv_len) ))
/*
* error.c
*/
LBER_F( int * ) ber_errno_addr LDAP_P((void));
#define ber_errno (*(ber_errno_addr)())
#define LBER_ERROR_NONE 0
#define LBER_ERROR_PARAM 0x1
#define LBER_ERROR_MEMORY 0x2
LDAP_END_DECL
#endif /* _LBER_H */