schema_init.c 36.4 KB
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/* schema_init.c - init builtin schema */
/* $OpenLDAP$ */
/*
Kurt Zeilenga's avatar
Kurt Zeilenga committed
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 * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
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 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
 */

#include "portable.h"

#include <stdio.h>

#include <ac/ctype.h>
#include <ac/string.h>
#include <ac/socket.h>

#include "slap.h"
#include "ldap_pvt.h"
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#include "lutil_md5.h"

static int
octetStringMatch(
	int *matchp,
	unsigned use,
	Syntax *syntax,
	MatchingRule *mr,
	struct berval *value,
	void *assertedValue )
{
	int match = value->bv_len - ((struct berval *) assertedValue)->bv_len;

	if( match == 0 ) {
		match = memcmp( value->bv_val,
			((struct berval *) assertedValue)->bv_val,
			value->bv_len );
	}

	*matchp = match;
	return LDAP_SUCCESS;
}

/* Index generation function */
int octetStringIndexer(
	unsigned use,
	Syntax *syntax,
	MatchingRule *mr,
	struct berval *prefix,
	struct berval **values,
	struct berval ***keysp )
{
	int i;
	size_t slen, mlen;
	struct berval **keys;
	lutil_MD5_CTX   MD5context;
	unsigned char   MD5digest[16];
	struct berval digest;
	digest.bv_val = MD5digest;
	digest.bv_len = sizeof(MD5digest);

	for( i=0; values[i] != NULL; i++ ) {
		/* just count them */
	}

	assert( i > 0 );

	keys = ch_malloc( sizeof( struct berval * ) * (i+1) );

	slen = strlen( syntax->ssyn_oid );
	mlen = strlen( mr->smr_oid );

	for( i=0; values[i] != NULL; i++ ) {
		lutil_MD5Init( &MD5context );
		if( prefix != NULL && prefix->bv_len > 0 ) {
			lutil_MD5Update( &MD5context,
				prefix->bv_val, prefix->bv_len );
		}
		lutil_MD5Update( &MD5context,
			syntax->ssyn_oid, slen );
		lutil_MD5Update( &MD5context,
			mr->smr_oid, mlen );
		lutil_MD5Update( &MD5context,
			values[i]->bv_val, values[i]->bv_len );
		lutil_MD5Final( MD5digest, &MD5context );

		keys[i] = ber_bvdup( &digest );
	}

	keys[i] = NULL;

	*keysp = keys;

	return LDAP_SUCCESS;
}

/* Index generation function */
int octetStringFilter(
	unsigned use,
	Syntax *syntax,
	MatchingRule *mr,
	struct berval *prefix,
	void * assertValue,
	struct berval ***keysp )
{
	size_t slen, mlen;
	struct berval **keys;
	lutil_MD5_CTX   MD5context;
	unsigned char   MD5digest[LUTIL_MD5_BYTES];
	struct berval *value = (struct berval *) assertValue;
	struct berval digest;
	digest.bv_val = MD5digest;
	digest.bv_len = sizeof(MD5digest);

	slen = strlen( syntax->ssyn_oid );
	mlen = strlen( mr->smr_oid );

	keys = ch_malloc( sizeof( struct berval * ) * 2 );

	lutil_MD5Init( &MD5context );
	if( prefix != NULL && prefix->bv_len > 0 ) {
		lutil_MD5Update( &MD5context,
			prefix->bv_val, prefix->bv_len );
	}
	lutil_MD5Update( &MD5context,
		syntax->ssyn_oid, slen );
	lutil_MD5Update( &MD5context,
		mr->smr_oid, mlen );
	lutil_MD5Update( &MD5context,
		value->bv_val, value->bv_len );
	lutil_MD5Final( MD5digest, &MD5context );

	keys[0] = ber_bvdup( &digest );
	keys[1] = NULL;

	*keysp = keys;

	return LDAP_SUCCESS;
}
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static int
dnValidate(
	Syntax *syntax,
	struct berval *in )
{
	int rc;
	char *dn;

	if( in->bv_len == 0 ) return LDAP_SUCCESS;

	dn = ch_strdup( in->bv_val );

	rc = dn_validate( dn ) == NULL
		? LDAP_INVALID_SYNTAX : LDAP_SUCCESS;

	ch_free( dn );
	return rc;
}

static int
dnNormalize(
	Syntax *syntax,
	struct berval *val,
	struct berval **normalized )
{
	struct berval *out = ber_bvdup( val );

	if( out->bv_len != 0 ) {
		char *dn;
#ifdef USE_DN_NORMALIZE
		dn = dn_normalize( out->bv_val );
#else
		dn = dn_validate( out->bv_val );
#endif

		if( dn == NULL ) {
			ber_bvfree( out );
			return LDAP_INVALID_SYNTAX;
		}

		out->bv_val = dn;
		out->bv_len = strlen( dn );
	}

	*normalized = out;
	return LDAP_SUCCESS;
}

static int
dnMatch(
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	int *matchp,
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	unsigned use,
	Syntax *syntax,
	MatchingRule *mr,
	struct berval *value,
	void *assertedValue )
{
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	int match;
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	struct berval *asserted = (struct berval *) assertedValue;
	
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	match = value->bv_len - asserted->bv_len;

	if( match == 0 ) {
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#ifdef USE_DN_NORMALIZE
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		match = strcmp( value->bv_val, asserted->bv_val );
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#else
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		match = strcasecmp( value->bv_val, asserted->bv_val );
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#endif
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	}

	Debug( LDAP_DEBUG_ARGS, "dnMatch %d\n\t\"%s\"\n\t\"%s\"\n",
	    match, value->bv_val, asserted->bv_val );

	*matchp = match;
	return LDAP_SUCCESS;
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}
	
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static int
inValidate(
	Syntax *syntax,
	struct berval *in )
{
	/* any value allowed */
	return LDAP_OTHER;
}

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static int
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blobValidate(
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	Syntax *syntax,
	struct berval *in )
{
	/* any value allowed */
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	return LDAP_SUCCESS;
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}

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#define berValidate blobValidate

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static int
UTF8StringValidate(
	Syntax *syntax,
	struct berval *in )
{
	ber_len_t count;
	int len;
	unsigned char *u = in->bv_val;

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	for( count = in->bv_len; count > 0; count-=len, u+=len ) {
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		/* get the length indicated by the first byte */
		len = LDAP_UTF8_CHARLEN( u );

		/* should not be zero */
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		if( len == 0 ) return LDAP_INVALID_SYNTAX;
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		/* make sure len corresponds with the offset
			to the next character */
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		if( LDAP_UTF8_OFFSET( u ) != len ) return LDAP_INVALID_SYNTAX;
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	}

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	if( count != 0 ) return LDAP_INVALID_SYNTAX;
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	return LDAP_SUCCESS;
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}

static int
UTF8StringNormalize(
	Syntax *syntax,
	struct berval *val,
	struct berval **normalized )
{
	struct berval *newval;
	char *p, *q, *s;

	newval = ch_malloc( sizeof( struct berval ) );

	p = val->bv_val;

	/* Ignore initial whitespace */
	while ( ldap_utf8_isspace( p ) ) {
		LDAP_UTF8_INCR( p );
	}

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	if( *p == '\0' ) {
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		ch_free( newval );
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		return LDAP_INVALID_SYNTAX;
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	}

	newval->bv_val = ch_strdup( p );
	p = q = newval->bv_val;
	s = NULL;

	while ( *p ) {
		int len;

		if ( ldap_utf8_isspace( p ) ) {
			len = LDAP_UTF8_COPY(q,p);
			s=q;
			p+=len;
			q+=len;

			/* Ignore the extra whitespace */
			while ( ldap_utf8_isspace( p ) ) {
				LDAP_UTF8_INCR( p );
			}
		} else {
			len = LDAP_UTF8_COPY(q,p);
			s=NULL;
			p+=len;
			q+=len;
		}
	}

	assert( *newval->bv_val );
	assert( newval->bv_val < p );
	assert( p <= q );

	/* cannot start with a space */
	assert( !ldap_utf8_isspace(newval->bv_val) );

	/*
	 * If the string ended in space, backup the pointer one
	 * position.  One is enough because the above loop collapsed
	 * all whitespace to a single space.
	 */

	if ( s != NULL ) {
		q = s;
	}

	/* cannot end with a space */
	assert( !ldap_utf8_isspace( LDAP_UTF8_PREV(q) ) );

	/* null terminate */
	*q = '\0';

	newval->bv_len = q - newval->bv_val;
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	*normalized = newval;
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	return LDAP_SUCCESS;
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}

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static int
oidValidate(
	Syntax *syntax,
	struct berval *val )
{
	ber_len_t i;

	if( val->bv_len == 0 ) return 0;

	if( isdigit(val->bv_val[0]) ) {
		int dot = 0;
		for(i=1; i < val->bv_len; i++) {
			if( val->bv_val[i] == '.' ) {
				if( dot++ ) return 1;
			} else if ( isdigit(val->bv_val[i]) ) {
				dot = 0;
			} else {
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				return LDAP_INVALID_SYNTAX;
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			}
		}

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		return !dot ? LDAP_SUCCESS : LDAP_INVALID_SYNTAX;
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	} else if( isalpha(val->bv_val[0]) ) {
		for(i=1; i < val->bv_len; i++) {
			if( !isalpha(val->bv_val[i] ) ) {
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				return LDAP_INVALID_SYNTAX;
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			}
		}

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		return LDAP_SUCCESS;
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	}
	
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	return LDAP_INVALID_SYNTAX;
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}

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static int
integerValidate(
	Syntax *syntax,
	struct berval *val )
{
	ber_len_t i;

	for(i=0; i < val->bv_len; i++) {
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		if( !isdigit(val->bv_val[i]) ) return LDAP_INVALID_SYNTAX;
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	}

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	return LDAP_SUCCESS;
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}

static int
printableStringValidate(
	Syntax *syntax,
	struct berval *val )
{
	ber_len_t i;

	for(i=0; i < val->bv_len; i++) {
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		if( !isprint(val->bv_val[i]) ) return LDAP_INVALID_SYNTAX;
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	}

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	return LDAP_SUCCESS;
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}

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static int
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IA5StringValidate(
	Syntax *syntax,
	struct berval *val )
{
	ber_len_t i;

	for(i=0; i < val->bv_len; i++) {
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		if( !isascii(val->bv_val[i]) ) return LDAP_INVALID_SYNTAX;
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	}

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	return LDAP_SUCCESS;
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}

static int
IA5StringConvert(
	Syntax *syntax,
	struct berval *in,
	struct berval **out )
{
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	ldap_unicode_t *u;
	ber_len_t i, len = in->bv_len;
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	struct berval *bv = ch_malloc( sizeof(struct berval) );

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	bv->bv_len = len * sizeof( ldap_unicode_t );
	bv->bv_val = (char *) u = ch_malloc( bv->bv_len + sizeof( ldap_unicode_t ) );;

	for(i=0; i < len; i++ ) {
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		/*
		 * IA5StringValidate should have been called to ensure
		 * input is limited to IA5.
		 */
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		u[i] = in->bv_val[i];
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	}
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	u[i] = 0;
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	*out = bv;
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	return LDAP_SUCCESS;
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}

static int
IA5StringNormalize(
	Syntax *syntax,
	struct berval *val,
	struct berval **normalized )
{
	struct berval *newval;
	char *p, *q;

	newval = ch_malloc( sizeof( struct berval ) );

	p = val->bv_val;

	/* Ignore initial whitespace */
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	while ( isspace( *p ) ) {
		p++;
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	}

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	if( *p != '\0' ) {
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		ch_free( newval );
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		return LDAP_INVALID_SYNTAX;
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	}

	newval->bv_val = ch_strdup( p );
	p = q = newval->bv_val;

	while ( *p ) {
		if ( isspace( *p ) ) {
			*q++ = *p++;

			/* Ignore the extra whitespace */
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			while ( isspace( *p ) ) {
				p++;
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			}
		} else {
			*q++ = *p++;
		}
	}

	assert( *newval->bv_val );
	assert( newval->bv_val < p );
	assert( p <= q );

	/* cannot start with a space */
	assert( !isspace(*newval->bv_val) );

	/*
	 * If the string ended in space, backup the pointer one
	 * position.  One is enough because the above loop collapsed
	 * all whitespace to a single space.
	 */

	if ( isspace( q[-1] ) ) {
		--q;
	}

	/* cannot end with a space */
	assert( !isspace( q[-1] ) );

	/* null terminate */
	*q = '\0';

	newval->bv_len = q - newval->bv_val;
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	*normalized = newval;
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	return LDAP_SUCCESS;
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}

static int
caseExactIA5Match(
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	int *match,
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	unsigned use,
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	Syntax *syntax,
	MatchingRule *mr,
	struct berval *value,
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	void *assertedValue )
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{
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	*match = strcmp( value->bv_val,
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		((struct berval *) assertedValue)->bv_val );
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	return LDAP_SUCCESS;
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}

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static int
caseExactIA5SubstringsMatch(
	int *matchp,
	unsigned use,
	Syntax *syntax,
	MatchingRule *mr,
	struct berval *value,
	void *assertedValue )
{
	int match = 0;
	SubstringsAssertion *sub = assertedValue;
	struct berval left = *value;
	int i;
	ber_len_t inlen=0;

	if( sub->sa_initial ) {
		inlen += sub->sa_initial->bv_len;
	}
	if( sub->sa_any ) {
		for(i=0; sub->sa_any[i]; i++) {
			inlen += sub->sa_final->bv_len;
		}
	}
	if( sub->sa_final ) {
		inlen += sub->sa_final->bv_len;
	}

	if( inlen > value->bv_len ) {
		match = 1;
		goto done;
	}

	if( sub->sa_initial ) {
		match = strncmp( sub->sa_initial->bv_val, left.bv_val,
			sub->sa_initial->bv_len );

		if( match != 0 ) {
			goto done;
		}

		left.bv_val += sub->sa_initial->bv_len;
		left.bv_len -= sub->sa_initial->bv_len;
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		inlen -= sub->sa_initial->bv_len;
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	}

	if( sub->sa_final ) {
		match = strncmp( sub->sa_final->bv_val,
			&left.bv_val[left.bv_len - sub->sa_final->bv_len],
			sub->sa_final->bv_len );

		if( match != 0 ) {
			goto done;
		}

		left.bv_len -= sub->sa_final->bv_len;
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		inlen -= sub->sa_initial->bv_len;
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	}

	if( sub->sa_any ) {
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		for(i=0; sub->sa_any[i]; i++) {
			ber_len_t idx;
			char *p;

retry:
			if( inlen < left.bv_len ) {
				/* not enough length */
				match = 1;
				goto done;
			}

			if( sub->sa_any[i]->bv_len == 0 ) {
				continue;
			}

			p = strchr( left.bv_val, *sub->sa_any[i]->bv_val );

			if( p == NULL ) {
				match = 1;
				goto done;
			}

			idx = p - left.bv_val;
			assert( idx < left.bv_len );

			if( idx >= left.bv_len ) {
				/* this shouldn't happen */
				return LDAP_OTHER;
			}

			left.bv_val = p;
			left.bv_len -= idx;

			if( sub->sa_any[i]->bv_len > left.bv_len ) {
				/* not enough left */
				match = 1;
				goto done;
			}

			match = strncmp( left.bv_val,
				sub->sa_any[i]->bv_val,
				sub->sa_any[i]->bv_len );


			if( match != 0 ) {
				goto retry;
			}

			left.bv_val += sub->sa_any[i]->bv_len;
			left.bv_len -= sub->sa_any[i]->bv_len;
		}
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	}

done:
	*matchp = match;
	return LDAP_SUCCESS;
}

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static int
caseIgnoreIA5Match(
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	int *match,
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	unsigned use,
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	Syntax *syntax,
	MatchingRule *mr,
	struct berval *value,
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	void *assertedValue )
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{
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	*match = strcasecmp( value->bv_val,
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		((struct berval *) assertedValue)->bv_val );
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	return LDAP_SUCCESS;
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}

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static char *strcasechr( const char *str, int c )
{
	char *lower = strchr( str, TOLOWER(c) );
	char *upper = strchr( str, TOUPPER(c) );

	if( lower && upper ) {
		return lower < upper ? lower : upper;
	} else if ( lower ) {
		return lower;
	} else {
		return upper;
	}
}

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static int
caseIgnoreIA5SubstringsMatch(
	int *matchp,
	unsigned use,
	Syntax *syntax,
	MatchingRule *mr,
	struct berval *value,
	void *assertedValue )
{
	int match = 0;
	SubstringsAssertion *sub = assertedValue;
	struct berval left = *value;
	int i;
	ber_len_t inlen=0;

	if( sub->sa_initial ) {
		inlen += sub->sa_initial->bv_len;
	}
	if( sub->sa_any ) {
		for(i=0; sub->sa_any[i]; i++) {
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			inlen += sub->sa_any[i]->bv_len;
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		}
	}
	if( sub->sa_final ) {
		inlen += sub->sa_final->bv_len;
	}

	if( inlen > value->bv_len ) {
		match = 1;
		goto done;
	}

	if( sub->sa_initial ) {
		match = strncasecmp( sub->sa_initial->bv_val, left.bv_val,
			sub->sa_initial->bv_len );

		if( match != 0 ) {
			goto done;
		}

		left.bv_val += sub->sa_initial->bv_len;
		left.bv_len -= sub->sa_initial->bv_len;
	}

	if( sub->sa_final ) {
		match = strncasecmp( sub->sa_final->bv_val,
			&left.bv_val[left.bv_len - sub->sa_final->bv_len],
			sub->sa_final->bv_len );

		if( match != 0 ) {
			goto done;
		}

		left.bv_len -= sub->sa_final->bv_len;
	}

	if( sub->sa_any ) {
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		for(i=0; sub->sa_any[i]; i++) {
			ber_len_t idx;
			char *p;

retry:
			if( inlen < left.bv_len ) {
				/* not enough length */
				match = 1;
				goto done;
			}

			if( sub->sa_any[i]->bv_len == 0 ) {
				continue;
			}

			p = strcasechr( left.bv_val, *sub->sa_any[i]->bv_val );

			if( p == NULL ) {
				match = 1;
				goto done;
			}

			idx = p - left.bv_val;
			assert( idx < left.bv_len );

			if( idx >= left.bv_len ) {
				/* this shouldn't happen */
				return LDAP_OTHER;
			}

			left.bv_val = p;
			left.bv_len -= idx;

			if( sub->sa_any[i]->bv_len > left.bv_len ) {
				/* not enough left */
				match = 1;
				goto done;
			}

			match = strncasecmp( left.bv_val,
				sub->sa_any[i]->bv_val,
				sub->sa_any[i]->bv_len );


			if( match != 0 ) {
				goto retry;
			}

			left.bv_val += sub->sa_any[i]->bv_len;
			left.bv_len -= sub->sa_any[i]->bv_len;
		}
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	}

done:
	*matchp = match;
	return LDAP_SUCCESS;
}
783

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/* Index generation function */
int caseIgnoreIA5Indexer(
	unsigned use,
	Syntax *syntax,
	MatchingRule *mr,
	struct berval *prefix,
	struct berval **values,
	struct berval ***keysp )
{
	int i;
	size_t slen, mlen;
	struct berval **keys;
	lutil_MD5_CTX   MD5context;
	unsigned char   MD5digest[16];
	struct berval digest;
	digest.bv_val = MD5digest;
	digest.bv_len = sizeof(MD5digest);

	for( i=0; values[i] != NULL; i++ ) {
		/* just count them */
	}

	assert( i > 0 );

	keys = ch_malloc( sizeof( struct berval * ) * (i+1) );

	slen = strlen( syntax->ssyn_oid );
	mlen = strlen( mr->smr_oid );

	for( i=0; values[i] != NULL; i++ ) {
		struct berval *value = ber_bvdup( values[i] );
		ldap_pvt_str2upper( value->bv_val );

		lutil_MD5Init( &MD5context );
		if( prefix != NULL && prefix->bv_len > 0 ) {
			lutil_MD5Update( &MD5context,
				prefix->bv_val, prefix->bv_len );
		}
		lutil_MD5Update( &MD5context,
			syntax->ssyn_oid, slen );
		lutil_MD5Update( &MD5context,
			mr->smr_oid, mlen );
		lutil_MD5Update( &MD5context,
			value->bv_val, value->bv_len );
		lutil_MD5Final( MD5digest, &MD5context );

		ber_bvfree( value );

		keys[i] = ber_bvdup( &digest );
	}

	keys[i] = NULL;
	*keysp = keys;
	return LDAP_SUCCESS;
}

/* Index generation function */
int caseIgnoreIA5Filter(
	unsigned use,
	Syntax *syntax,
	MatchingRule *mr,
	struct berval *prefix,
	void * assertValue,
	struct berval ***keysp )
{
	size_t slen, mlen;
	struct berval **keys;
	lutil_MD5_CTX   MD5context;
	unsigned char   MD5digest[LUTIL_MD5_BYTES];
	struct berval *value;
	struct berval digest;
	digest.bv_val = MD5digest;
	digest.bv_len = sizeof(MD5digest);

	slen = strlen( syntax->ssyn_oid );
	mlen = strlen( mr->smr_oid );

	value = ber_bvdup( (struct berval *) assertValue );
	ldap_pvt_str2upper( value->bv_val );

	keys = ch_malloc( sizeof( struct berval * ) * 2 );

	lutil_MD5Init( &MD5context );
	if( prefix != NULL && prefix->bv_len > 0 ) {
		lutil_MD5Update( &MD5context,
			prefix->bv_val, prefix->bv_len );
	}
	lutil_MD5Update( &MD5context,
		syntax->ssyn_oid, slen );
	lutil_MD5Update( &MD5context,
		mr->smr_oid, mlen );
	lutil_MD5Update( &MD5context,
		value->bv_val, value->bv_len );
	lutil_MD5Final( MD5digest, &MD5context );

	keys[0] = ber_bvdup( &digest );
	keys[1] = NULL;

	ber_bvfree( value );

	*keysp = keys;
	return LDAP_SUCCESS;
}

888
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static int
NumericStringNormalize(
	Syntax *syntax,
	struct berval *val,
	struct berval **normalized )
{
	/* similiar to IA5StringNormalize except removes all spaces */
	struct berval *newval;
	char *p, *q;

	newval = ch_malloc( sizeof( struct berval ) );

	p = val->bv_val;

	/* Ignore initial whitespace */
903
904
	while ( isspace( *p ) ) {
		p++;
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	}

	if( *p != '\0' ) {
		ch_free( newval );
		return LDAP_INVALID_SYNTAX;
	}

	newval->bv_val = ch_strdup( p );
	p = q = newval->bv_val;

	while ( *p ) {
		if ( isspace( *p ) ) {
			/* Ignore whitespace */
			p++;
		} else {
			*q++ = *p++;
		}
	}

	assert( *newval->bv_val );
	assert( newval->bv_val < p );
	assert( p <= q );

	/* cannot start with a space */
	assert( !isspace(*newval->bv_val) );

	/* cannot end with a space */
	assert( !isspace( q[-1] ) );

	/* null terminate */
	*q = '\0';

	newval->bv_len = q - newval->bv_val;
	*normalized = newval;

	return LDAP_SUCCESS;
}

943
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static int
check_time_syntax (struct berval *val,
	int start,
	int *parts)
{
	static int ceiling[9] = { 99, 99, 11, 30, 23, 59, 59, 12, 59 };
	static int mdays[12] = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
	char *p, *e;
	int part, c, neg = 0;

	if( val->bv_len == 0 )
		return LDAP_INVALID_SYNTAX;

	p = (char *)val->bv_val;
	e = p + val->bv_len;

	/* Ignore initial whitespace */
	while ( ( p < e ) && isspace( *p ) ) {
		p++;
	}

	if (e - p < 13 - (2 * start))
		return LDAP_INVALID_SYNTAX;

	for (part = 0; part < 9; part++)
		parts[part] = 0;

	for (part = start; part < 7; part++) {
		c = *p;
		if ((part == 6)
			&& (c == 'Z'
				|| c == '+'
				|| c == '-'))
		{
			part++;
			break;
		}
		p++;
		c -= '0';
		if (p == e)
			return LDAP_INVALID_SYNTAX;
		if (c < 0 || c > 9)
			return LDAP_INVALID_SYNTAX;
		parts[part] = c;

		c = *p++ - '0';
		if (p == e)
			return LDAP_INVALID_SYNTAX;
		if (c < 0 || c > 9)
			return LDAP_INVALID_SYNTAX;
		parts[part] *= 10;
		parts[part] += c;

		if (part == 2 || part == 3)
			parts[part]--;
		if (parts[part] < 0)
			return LDAP_INVALID_SYNTAX;
		if (parts[part] > ceiling[part])