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c2050e04d3
openldap/libraries/liblber/lber-int.h
Kurt Zeilenga c2050e04d3 ITS#479 fix: ber_put_seqorset() writes a few bytes beyond an allocated buffer 
Commit based upon patch and comments provided by Alan Clark <aclark@novell.com>.
> Kudos to Dave Steck for the find and fix
2000-03-15 19:47:22 +00:00

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/* $OpenLDAP$ */
/*
* Copyright 1998 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
/* 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_INT_H
#define _LBER_INT_H
#include "lber.h"
#include "ldap_log.h"
#include "lber_pvt.h"
LDAP_BEGIN_DECL
LIBLBER_F (BER_ERRNO_FN) ber_int_errno_fn;
struct lber_options {
short lbo_valid;
#define LBER_UNINITIALIZED 0x0
#define LBER_INITIALIZED 0x1
#define LBER_VALID_BERELEMENT 0x2
#define LBER_VALID_SOCKBUF 0x3
unsigned short lbo_options;
int lbo_debug;
};
LIBLBER_F (struct lber_options) ber_int_options;
#define ber_int_debug ber_int_options.lbo_debug
struct berelement {
struct lber_options ber_opts;
#define ber_valid ber_opts.lbo_valid
#define ber_options ber_opts.lbo_options
#define ber_debug ber_opts.lbo_debug
ber_tag_t ber_usertag;
ber_tag_t ber_tag;
ber_len_t ber_len;
char *ber_buf;
char *ber_ptr;
char *ber_end;
struct seqorset *ber_sos;
char *ber_rwptr;
BERTranslateProc ber_encode_translate_proc;
BERTranslateProc ber_decode_translate_proc;
};
#define BER_VALID(ber) ((ber)->ber_valid==LBER_VALID_BERELEMENT)
#define ber_pvt_ber_bytes(ber) ((ber)->ber_ptr - (ber)->ber_buf)
#define ber_pvt_ber_remaining(ber) ((ber)->ber_end - (ber)->ber_ptr)
struct sockbuf;
struct sockbuf_io {
int (*sbi_setup)( struct sockbuf * sb, void *arg );
int (*sbi_remove)( struct sockbuf *sb );
ber_slen_t (*sbi_read)( struct sockbuf *sb, void *buf, ber_len_t len );
ber_slen_t (*sbi_write)( struct sockbuf *sb, void *buf, ber_len_t len );
int (*sbi_close)( struct sockbuf *sb );
};
struct sockbuf_sec {
int (*sbs_setup)( struct sockbuf * sb, void *arg );
int (*sbs_remove)( struct sockbuf *sb );
long (*sbs_protect)( struct sockbuf *sb, char *in, long *ilen,
char *out, long olen );
long (*sbs_release)( struct sockbuf *sb, char *in, long ilen,
char *out0, long olen0, char *out1, long olen1 );
};
struct sockbuf_buf {
ber_len_t buf_size;
ber_len_t buf_ptr;
ber_len_t buf_end;
char *buf_base;
};
typedef struct sockbuf_io Sockbuf_IO;
typedef struct sockbuf_sec Sockbuf_Sec;
typedef struct sockbuf_buf Sockbuf_Buf;
LIBLBER_F( Sockbuf_IO ) ber_pvt_sb_io_tcp;
LIBLBER_F( Sockbuf_IO ) ber_pvt_sb_io_udp;
struct sockbuf {
struct lber_options sb_opts;
#define sb_valid sb_opts.lbo_valid
#define sb_options sb_opts.lbo_options
#define sb_debug sb_opts.lbo_debug
int sb_non_block:1;
int sb_read_ahead:1;
int sb_buf_ready:1;
int sb_trans_ready:1;
int sb_sec_ready:1;
/* these bits indicate if the transport layer
* needs to read or write
*/
int sb_trans_needs_read:1;
int sb_trans_needs_write:1;
int sb_fd;
void *sb_iodata; /* transport-layer data pointer */
Sockbuf_IO *sb_io; /* I/O functions */
#ifdef LDAP_SASL
void *sb_sdata; /* security-layer data pointer */
Sockbuf_Sec *sb_sec;
#endif
ber_socket_t sb_sd;
#ifdef DEADWOOD
long sb_max_incoming;
#endif
Sockbuf_Buf sb_buf;
#ifdef LDAP_SASL
Sockbuf_Buf sb_sec_buf_in;
Sockbuf_Buf sb_sec_buf_out;
ber_len_t sb_sec_prev_len;
#endif
};
#define SOCKBUF_VALID(ber) ((sb)->sb_valid==LBER_VALID_SOCKBUF)
/* these should be internal ie: ber_int_* */
#define ber_pvt_sb_get_desc( sb ) ((sb)->sb_sd)
#define ber_pvt_sb_set_desc( sb, val ) ((sb)->sb_sd =(val))
#define ber_pvt_sb_in_use( sb ) ((sb)->sb_sd != AC_SOCKET_INVALID)
#ifdef USE_SASL
#define ber_pvt_sb_data_ready( sb ) \
(((sb)->sb_buf_ready) || ((sb)->sb_trans_ready) || ((sb)->sb_sec_ready))
#else
#define ber_pvt_sb_data_ready( sb ) \
(((sb)->sb_buf_ready) || ((sb)->sb_trans_ready))
#endif
#define ber_pvt_sb_needs_read( sb ) \
((sb)->sb_trans_needs_read)
#define ber_pvt_sb_needs_write( sb ) \
((sb)->sb_trans_needs_write)
#define READBUFSIZ 8192
struct seqorset {
BerElement *sos_ber;
ber_len_t sos_clen;
ber_tag_t sos_tag;
char *sos_first;
char *sos_ptr;
struct seqorset *sos_next;
};
/*
* io.c
*/
int ber_realloc LDAP_P((
BerElement *ber,
ber_len_t len ));
/*
* bprint.c
*/
#define ber_log_printf ber_pvt_log_printf
LIBLBER_F( int )
ber_log_bprint LDAP_P((
int errlvl,
int loglvl,
const char *data,
ber_len_t len ));
LIBLBER_F( int )
ber_log_dump LDAP_P((
int errlvl,
int loglvl,
BerElement *ber,
int inout ));
LIBLBER_F( int )
ber_log_sos_dump LDAP_P((
int errlvl,
int loglvl,
Seqorset *sos ));
/* memory.c */
/* simple macros to realloc for now */
LIBLBER_F (BerMemoryFunctions *) ber_int_memory_fns;
#ifdef CSRIMALLOC
#define LBER_INT_MALLOC malloc
#define LBER_INT_CALLOC calloc
#define LBER_INT_REALLOC realloc
#define LBER_INT_FREE free
#define LBER_INT_VFREE ber_memvfree
#define LBER_INT_STRDUP strdup
#define LBER_MALLOC malloc
#define LBER_CALLOC calloc
#define LBER_REALLOC realloc
#define LBER_FREE free
#define LBER_VFREE ber_memvfree
#define LBER_STRDUP strdup
#else
#define LBER_INT_MALLOC(s) ber_memalloc((s))
#define LBER_INT_CALLOC(n,s) ber_memcalloc((n),(s))
#define LBER_INT_REALLOC(p,s) ber_memrealloc((p),(s))
#define LBER_INT_FREE(p) ber_memfree((p))
#define LBER_INT_VFREE(v) ber_memvfree((void**)(v))
#define LBER_INT_STRDUP(s) ber_strdup((s))
#define LBER_MALLOC(s) ber_memalloc((s))
#define LBER_CALLOC(n,s) ber_memcalloc((n),(s))
#define LBER_REALLOC(p,s) ber_memrealloc((p),(s))
#define LBER_FREE(p) ber_memfree((p))
#define LBER_VFREE(v) ber_memvfree((void**)(v))
#define LBER_STRDUP(s) ber_strdup((s))
#endif
/* sockbuf.c */
/* these should be ber_int*() functions */
LIBLBER_F( int )
ber_pvt_sb_init LDAP_P(( Sockbuf *sb ));
LIBLBER_F( int )
ber_pvt_sb_destroy LDAP_P(( Sockbuf *sb ));
#ifdef USE_SASL
LIBLBER_F( int )
ber_pvt_sb_set_sec LDAP_P(( Sockbuf *sb, Sockbuf_Sec *sec, void *arg ));
LIBLBER_F( int )
ber_pvt_sb_clear_sec LDAP_P(( Sockbuf *sb ));
#endif
LIBLBER_F( int )
ber_pvt_sb_set_io LDAP_P(( Sockbuf *sb, Sockbuf_IO *layer, void *arg ));
LIBLBER_F( int )
ber_pvt_sb_clear_io LDAP_P(( Sockbuf *sb ));
LIBLBER_F( int )
ber_pvt_sb_close LDAP_P((Sockbuf *sb ));
LIBLBER_F( int )
ber_pvt_sb_set_nonblock LDAP_P(( Sockbuf *sb, int nb ));
LIBLBER_F( int )
ber_pvt_sb_set_readahead LDAP_P(( Sockbuf *sb, int rh ));
LIBLBER_F( ber_slen_t )
ber_pvt_sb_read LDAP_P(( Sockbuf *sb, void *buf, ber_len_t len ));
LIBLBER_F( ber_slen_t )
ber_pvt_sb_write LDAP_P(( Sockbuf *sb, void *buf, ber_len_t len ));
LIBLBER_F( int )
ber_pvt_sb_udp_set_dst LDAP_P((Sockbuf *sb, void *addr ));
LIBLBER_F( void * )
ber_pvt_sb_udp_get_src LDAP_P((Sockbuf *sb ));
LIBLBER_F( int )
ber_pvt_socket_set_nonblock LDAP_P(( ber_socket_t sd, int nb ));
LDAP_END_DECL
#endif /* _LBER_INT_H */
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