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692 lines
15 KiB
C
692 lines
15 KiB
C
/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 1998-2022 The OpenLDAP Foundation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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/* Portions Copyright (c) 1990 Regents of the University of Michigan.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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* provided that this notice is preserved and that due credit is given
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* to the University of Michigan at Ann Arbor. The name of the University
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* may not be used to endorse or promote products derived from this
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* software without specific prior written permission. This software
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* is provided ``as is'' without express or implied warranty.
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*/
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#ifndef _LBER_H
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#define _LBER_H
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#include <lber_types.h>
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#include <string.h>
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LDAP_BEGIN_DECL
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/*
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* ber_tag_t represents the identifier octets at the beginning of BER
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* elements. OpenLDAP treats them as mere big-endian unsigned integers.
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*
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* Actually the BER identifier octets look like this:
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*
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* Bits of 1st octet:
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* ______
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* 8 7 | CLASS
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* 0 0 = UNIVERSAL
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* 0 1 = APPLICATION
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* 1 0 = CONTEXT-SPECIFIC
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* 1 1 = PRIVATE
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* _____
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* | 6 | DATA-TYPE
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* 0 = PRIMITIVE
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* 1 = CONSTRUCTED
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* ___________
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* | 5 ... 1 | TAG-NUMBER
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*
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* For ASN.1 tag numbers >= 0x1F, TAG-NUMBER above is 0x1F and the next
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* BER octets contain the actual ASN.1 tag number: Big-endian, base
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* 128, 8.bit = 1 in all but the last octet, minimum number of octets.
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*/
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/* BER classes and mask (in 1st identifier octet) */
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#define LBER_CLASS_UNIVERSAL ((ber_tag_t) 0x00U)
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#define LBER_CLASS_APPLICATION ((ber_tag_t) 0x40U)
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#define LBER_CLASS_CONTEXT ((ber_tag_t) 0x80U)
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#define LBER_CLASS_PRIVATE ((ber_tag_t) 0xc0U)
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#define LBER_CLASS_MASK ((ber_tag_t) 0xc0U)
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/* BER encoding type and mask (in 1st identifier octet) */
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#define LBER_PRIMITIVE ((ber_tag_t) 0x00U)
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#define LBER_CONSTRUCTED ((ber_tag_t) 0x20U)
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#define LBER_ENCODING_MASK ((ber_tag_t) 0x20U)
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#define LBER_BIG_TAG_MASK ((ber_tag_t) 0x1fU)
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#define LBER_MORE_TAG_MASK ((ber_tag_t) 0x80U)
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/*
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* LBER_ERROR and LBER_DEFAULT are values that can never appear
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* as valid BER tags, so it is safe to use them to report errors.
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* Valid tags have (tag & (ber_tag_t) 0xFF) != 0xFF.
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*/
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#define LBER_ERROR ((ber_tag_t) -1)
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#define LBER_DEFAULT ((ber_tag_t) -1)
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/* general BER types we know about */
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#define LBER_BOOLEAN ((ber_tag_t) 0x01UL)
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#define LBER_INTEGER ((ber_tag_t) 0x02UL)
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#define LBER_BITSTRING ((ber_tag_t) 0x03UL)
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#define LBER_OCTETSTRING ((ber_tag_t) 0x04UL)
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#define LBER_NULL ((ber_tag_t) 0x05UL)
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#define LBER_ENUMERATED ((ber_tag_t) 0x0aUL)
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#define LBER_SEQUENCE ((ber_tag_t) 0x30UL) /* constructed */
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#define LBER_SET ((ber_tag_t) 0x31UL) /* constructed */
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/* LBER BerElement options */
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#define LBER_USE_DER 0x01
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/* get/set options for BerElement */
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#define LBER_OPT_BER_OPTIONS 0x01
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#define LBER_OPT_BER_DEBUG 0x02
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#define LBER_OPT_BER_REMAINING_BYTES 0x03
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#define LBER_OPT_BER_TOTAL_BYTES 0x04
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#define LBER_OPT_BER_BYTES_TO_WRITE 0x05
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#define LBER_OPT_BER_MEMCTX 0x06
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#define LBER_OPT_DEBUG_LEVEL LBER_OPT_BER_DEBUG
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#define LBER_OPT_REMAINING_BYTES LBER_OPT_BER_REMAINING_BYTES
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#define LBER_OPT_TOTAL_BYTES LBER_OPT_BER_TOTAL_BYTES
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#define LBER_OPT_BYTES_TO_WRITE LBER_OPT_BER_BYTES_TO_WRITE
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#define LBER_OPT_LOG_PRINT_FN 0x8001
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#define LBER_OPT_MEMORY_FNS 0x8002
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#define LBER_OPT_ERROR_FN 0x8003
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#define LBER_OPT_LOG_PRINT_FILE 0x8004
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/* get/set Memory Debug options */
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#define LBER_OPT_MEMORY_INUSE 0x8005 /* for memory debugging */
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#define LBER_OPT_LOG_PROC 0x8006 /* for external logging function */
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typedef int* (*BER_ERRNO_FN) LDAP_P(( void ));
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typedef void (*BER_LOG_PRINT_FN) LDAP_P(( LDAP_CONST char *buf ));
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typedef void* (BER_MEMALLOC_FN) LDAP_P(( ber_len_t size, void *ctx ));
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typedef void* (BER_MEMCALLOC_FN) LDAP_P(( ber_len_t n, ber_len_t size, void *ctx ));
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typedef void* (BER_MEMREALLOC_FN) LDAP_P(( void *p, ber_len_t size, void *ctx ));
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typedef void (BER_MEMFREE_FN) LDAP_P(( void *p, void *ctx ));
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typedef struct lber_memory_fns {
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BER_MEMALLOC_FN *bmf_malloc;
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BER_MEMCALLOC_FN *bmf_calloc;
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BER_MEMREALLOC_FN *bmf_realloc;
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BER_MEMFREE_FN *bmf_free;
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} BerMemoryFunctions;
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/* LBER Sockbuf_IO options */
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#define LBER_SB_OPT_GET_FD 1
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#define LBER_SB_OPT_SET_FD 2
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#define LBER_SB_OPT_HAS_IO 3
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#define LBER_SB_OPT_SET_NONBLOCK 4
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#define LBER_SB_OPT_GET_SSL 7
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#define LBER_SB_OPT_DATA_READY 8
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#define LBER_SB_OPT_SET_READAHEAD 9
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#define LBER_SB_OPT_DRAIN 10
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#define LBER_SB_OPT_NEEDS_READ 11
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#define LBER_SB_OPT_NEEDS_WRITE 12
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#define LBER_SB_OPT_GET_MAX_INCOMING 13
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#define LBER_SB_OPT_SET_MAX_INCOMING 14
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/* Only meaningful ifdef LDAP_PF_LOCAL_SENDMSG */
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#define LBER_SB_OPT_UNGET_BUF 15
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/* Largest option used by the library */
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#define LBER_SB_OPT_OPT_MAX 15
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/* LBER IO operations stacking levels */
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#define LBER_SBIOD_LEVEL_PROVIDER 10
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#define LBER_SBIOD_LEVEL_TRANSPORT 20
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#define LBER_SBIOD_LEVEL_APPLICATION 30
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/* get/set options for Sockbuf */
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#define LBER_OPT_SOCKBUF_DESC 0x1000
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#define LBER_OPT_SOCKBUF_OPTIONS 0x1001
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#define LBER_OPT_SOCKBUF_DEBUG 0x1002
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/* on/off values */
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LBER_V( char ) ber_pvt_opt_on;
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#define LBER_OPT_ON ((void *) &ber_pvt_opt_on)
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#define LBER_OPT_OFF ((void *) 0)
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#define LBER_OPT_SUCCESS (0)
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#define LBER_OPT_ERROR (-1)
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typedef struct berelement BerElement;
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typedef struct sockbuf Sockbuf;
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typedef struct sockbuf_io Sockbuf_IO;
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/* Structure for LBER IO operation descriptor */
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typedef struct sockbuf_io_desc {
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int sbiod_level;
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Sockbuf *sbiod_sb;
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Sockbuf_IO *sbiod_io;
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void *sbiod_pvt;
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struct sockbuf_io_desc *sbiod_next;
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} Sockbuf_IO_Desc;
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/* Structure for LBER IO operation functions */
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struct sockbuf_io {
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int (*sbi_setup)( Sockbuf_IO_Desc *sbiod, void *arg );
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int (*sbi_remove)( Sockbuf_IO_Desc *sbiod );
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int (*sbi_ctrl)( Sockbuf_IO_Desc *sbiod, int opt, void *arg);
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ber_slen_t (*sbi_read)( Sockbuf_IO_Desc *sbiod, void *buf,
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ber_len_t len );
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ber_slen_t (*sbi_write)( Sockbuf_IO_Desc *sbiod, void *buf,
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ber_len_t len );
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int (*sbi_close)( Sockbuf_IO_Desc *sbiod );
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};
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/* Helper macros for LBER IO functions */
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#define LBER_SBIOD_READ_NEXT( sbiod, buf, len ) \
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( (sbiod)->sbiod_next->sbiod_io->sbi_read( (sbiod)->sbiod_next, \
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buf, len ) )
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#define LBER_SBIOD_WRITE_NEXT( sbiod, buf, len ) \
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( (sbiod)->sbiod_next->sbiod_io->sbi_write( (sbiod)->sbiod_next, \
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buf, len ) )
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#define LBER_SBIOD_CTRL_NEXT( sbiod, opt, arg ) \
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( (sbiod)->sbiod_next ? \
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( (sbiod)->sbiod_next->sbiod_io->sbi_ctrl( \
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(sbiod)->sbiod_next, opt, arg ) ) : 0 )
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/* structure for returning a sequence of octet strings + length */
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typedef struct berval {
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ber_len_t bv_len;
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char *bv_val;
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} BerValue;
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typedef BerValue *BerVarray; /* To distinguish from a single bv */
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/* this should be moved to lber-int.h */
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/*
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* in bprint.c:
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*/
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LBER_F( void )
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ber_error_print LDAP_P((
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LDAP_CONST char *data ));
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LBER_F( void )
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ber_bprint LDAP_P((
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LDAP_CONST char *data, ber_len_t len ));
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LBER_F( void )
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ber_dump LDAP_P((
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BerElement *ber, int inout ));
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/*
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* in decode.c:
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*/
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typedef int (*BERDecodeCallback) LDAP_P((
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BerElement *ber,
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void *data,
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int mode ));
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LBER_F( ber_tag_t )
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ber_get_tag LDAP_P((
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BerElement *ber ));
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LBER_F( ber_tag_t )
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ber_skip_tag LDAP_P((
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BerElement *ber,
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ber_len_t *len ));
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LBER_F( ber_tag_t )
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ber_peek_tag LDAP_P((
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BerElement *ber,
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ber_len_t *len ));
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LBER_F( ber_tag_t )
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ber_skip_raw LDAP_P((
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BerElement *ber,
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struct berval *bv ));
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LBER_F( ber_tag_t )
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ber_skip_element LDAP_P((
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BerElement *ber,
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struct berval *bv ));
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LBER_F( ber_tag_t )
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ber_peek_element LDAP_P((
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LDAP_CONST BerElement *ber,
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struct berval *bv ));
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LBER_F( ber_tag_t )
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ber_get_int LDAP_P((
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BerElement *ber,
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ber_int_t *num ));
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LBER_F( ber_tag_t )
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ber_get_enum LDAP_P((
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BerElement *ber,
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ber_int_t *num ));
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LBER_F( int )
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ber_decode_int LDAP_P((
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const struct berval *bv,
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ber_int_t *num ));
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LBER_F( ber_tag_t )
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ber_get_stringb LDAP_P((
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BerElement *ber,
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char *buf,
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ber_len_t *len ));
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#define LBER_BV_ALLOC 0x01 /* allocate/copy result, otherwise in-place */
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#define LBER_BV_NOTERM 0x02 /* omit NUL-terminator if parsing in-place */
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#define LBER_BV_STRING 0x04 /* fail if berval contains embedded \0 */
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/* LBER_BV_STRING currently accepts a terminating \0 in the berval, because
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* Active Directory sends that in at least the diagonsticMessage field.
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*/
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LBER_F( ber_tag_t )
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ber_get_stringbv LDAP_P((
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BerElement *ber,
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struct berval *bv,
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int options ));
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LBER_F( ber_tag_t )
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ber_get_stringa LDAP_P((
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BerElement *ber,
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char **buf ));
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LBER_F( ber_tag_t )
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ber_get_stringal LDAP_P((
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BerElement *ber,
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struct berval **bv ));
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LBER_F( ber_tag_t )
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ber_get_bitstringa LDAP_P((
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BerElement *ber,
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char **buf,
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ber_len_t *len ));
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LBER_F( ber_tag_t )
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ber_get_null LDAP_P((
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BerElement *ber ));
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LBER_F( ber_tag_t )
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ber_get_boolean LDAP_P((
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BerElement *ber,
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ber_int_t *boolval ));
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LBER_F( ber_tag_t )
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ber_first_element LDAP_P((
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BerElement *ber,
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ber_len_t *len,
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char **last ));
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LBER_F( ber_tag_t )
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ber_next_element LDAP_P((
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BerElement *ber,
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ber_len_t *len,
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LDAP_CONST char *last ));
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LBER_F( ber_tag_t )
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ber_scanf LDAP_P((
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BerElement *ber,
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LDAP_CONST char *fmt,
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... ));
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LBER_F( int )
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ber_decode_oid LDAP_P((
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struct berval *in,
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struct berval *out ));
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/*
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* in encode.c
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*/
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LBER_F( int )
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ber_encode_oid LDAP_P((
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struct berval *in,
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struct berval *out ));
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typedef int (*BEREncodeCallback) LDAP_P((
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BerElement *ber,
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void *data ));
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LBER_F( int )
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ber_put_enum LDAP_P((
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BerElement *ber,
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ber_int_t num,
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ber_tag_t tag ));
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LBER_F( int )
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ber_put_int LDAP_P((
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BerElement *ber,
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ber_int_t num,
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ber_tag_t tag ));
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LBER_F( int )
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ber_put_ostring LDAP_P((
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BerElement *ber,
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LDAP_CONST char *str,
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ber_len_t len,
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ber_tag_t tag ));
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LBER_F( int )
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ber_put_berval LDAP_P((
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BerElement *ber,
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struct berval *bv,
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ber_tag_t tag ));
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LBER_F( int )
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ber_put_string LDAP_P((
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BerElement *ber,
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LDAP_CONST char *str,
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ber_tag_t tag ));
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LBER_F( int )
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ber_put_bitstring LDAP_P((
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BerElement *ber,
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LDAP_CONST char *str,
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ber_len_t bitlen,
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ber_tag_t tag ));
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LBER_F( int )
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ber_put_null LDAP_P((
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BerElement *ber,
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ber_tag_t tag ));
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LBER_F( int )
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ber_put_boolean LDAP_P((
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BerElement *ber,
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ber_int_t boolval,
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ber_tag_t tag ));
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LBER_F( int )
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ber_start_seq LDAP_P((
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BerElement *ber,
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ber_tag_t tag ));
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LBER_F( int )
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ber_start_set LDAP_P((
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BerElement *ber,
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ber_tag_t tag ));
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LBER_F( int )
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ber_put_seq LDAP_P((
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BerElement *ber ));
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LBER_F( int )
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ber_put_set LDAP_P((
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BerElement *ber ));
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LBER_F( int )
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ber_printf LDAP_P((
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BerElement *ber,
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LDAP_CONST char *fmt,
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... ));
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/*
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* in io.c:
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*/
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LBER_F( ber_slen_t )
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ber_skip_data LDAP_P((
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BerElement *ber,
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ber_len_t len ));
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LBER_F( ber_slen_t )
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ber_read LDAP_P((
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BerElement *ber,
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char *buf,
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ber_len_t len ));
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LBER_F( ber_slen_t )
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ber_write LDAP_P((
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BerElement *ber,
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LDAP_CONST char *buf,
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ber_len_t len,
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int zero )); /* nonzero is unsupported from OpenLDAP 2.4.18 */
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LBER_F( void )
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ber_free LDAP_P((
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BerElement *ber,
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int freebuf ));
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LBER_F( void )
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ber_free_buf LDAP_P(( BerElement *ber ));
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LBER_F( int )
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ber_flush2 LDAP_P((
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Sockbuf *sb,
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BerElement *ber,
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int freeit ));
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#define LBER_FLUSH_FREE_NEVER (0x0) /* traditional behavior */
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#define LBER_FLUSH_FREE_ON_SUCCESS (0x1) /* traditional behavior */
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#define LBER_FLUSH_FREE_ON_ERROR (0x2)
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#define LBER_FLUSH_FREE_ALWAYS (LBER_FLUSH_FREE_ON_SUCCESS|LBER_FLUSH_FREE_ON_ERROR)
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LBER_F( int )
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ber_flush LDAP_P((
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Sockbuf *sb,
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BerElement *ber,
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int freeit )); /* DEPRECATED */
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LBER_F( BerElement * )
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ber_alloc LDAP_P(( void )); /* DEPRECATED */
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LBER_F( BerElement * )
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der_alloc LDAP_P(( void )); /* DEPRECATED */
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LBER_F( BerElement * )
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ber_alloc_t LDAP_P((
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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 */
|