From 137172f952d0e70a736d872a5a10bfbdfb90a68c Mon Sep 17 00:00:00 2001
From: Pierangelo Masarati <ando@openldap.org>
Date: Sat, 2 Feb 2008 10:23:35 +0000
Subject: [PATCH] allow 2.1 CSN format (ITS#5348)

---
 servers/slapd/schema_init.c | 128 ++++++++++++++++++++++++++++++++++--
 1 file changed, 123 insertions(+), 5 deletions(-)

diff --git a/servers/slapd/schema_init.c b/servers/slapd/schema_init.c
index 938180a543..c345065d3b 100644
--- a/servers/slapd/schema_init.c
+++ b/servers/slapd/schema_init.c
@@ -3561,6 +3561,114 @@ csnValidate(
 	return hexValidate( NULL, &bv );
 }
 
+/* Normalize a CSN in OpenLDAP 2.1 format */
+static int
+csnNormalize21(
+	slap_mask_t usage,
+	Syntax *syntax,
+	MatchingRule *mr,
+	struct berval *val,
+	struct berval *normalized,
+	void *ctx )
+{
+	struct berval	gt, cnt, sid, mod;
+	struct berval	bv;
+	char		buf[ STRLENOF( "YYYYmmddHHMMSS.uuuuuuZ#SSSSSS#SID#ssssss" ) + 1 ];
+	char		*ptr;
+	int		i;
+
+	assert( SLAP_MR_IS_VALUE_OF_SYNTAX( usage ) != 0 );
+	assert( !BER_BVISEMPTY( val ) );
+
+	gt = *val;
+
+	ptr = ber_bvchr( &gt, '#' );
+	if ( ptr == NULL || ptr - gt.bv_val == gt.bv_len ) {
+		return LDAP_INVALID_SYNTAX;
+	}
+
+	gt.bv_len = ptr - gt.bv_val;
+	if ( gt.bv_len != STRLENOF( "YYYYmmddHH:MM:SSZ" ) ) {
+		return LDAP_INVALID_SYNTAX;
+	}
+
+	if ( gt.bv_val[ 10 ] != ':' || gt.bv_val[ 13 ] != ':' ) {
+		return LDAP_INVALID_SYNTAX;
+	}
+
+	cnt.bv_val = ptr + 1;
+	cnt.bv_len = val->bv_len - ( cnt.bv_val - val->bv_val );
+
+	ptr = ber_bvchr( &cnt, '#' );
+	if ( ptr == NULL || ptr - val->bv_val == val->bv_len ) {
+		return LDAP_INVALID_SYNTAX;
+	}
+
+	cnt.bv_len = ptr - cnt.bv_val;
+	if ( cnt.bv_len != STRLENOF( "0x0000" ) ) {
+		return LDAP_INVALID_SYNTAX;
+	}
+
+	if ( strncmp( cnt.bv_val, "0x", STRLENOF( "0x" ) ) != 0 ) {
+		return LDAP_INVALID_SYNTAX;
+	}
+
+	cnt.bv_val += STRLENOF( "0x" );
+	cnt.bv_len -= STRLENOF( "0x" );
+
+	sid.bv_val = ptr + 1;
+	sid.bv_len = val->bv_len - ( sid.bv_val - val->bv_val );
+		
+	ptr = ber_bvchr( &sid, '#' );
+	if ( ptr == NULL || ptr - val->bv_val == val->bv_len ) {
+		return LDAP_INVALID_SYNTAX;
+	}
+
+	sid.bv_len = ptr - sid.bv_val;
+	if ( sid.bv_len != STRLENOF( "0" ) ) {
+		return LDAP_INVALID_SYNTAX;
+	}
+
+	mod.bv_val = ptr + 1;
+	mod.bv_len = val->bv_len - ( mod.bv_val - val->bv_val );
+	if ( mod.bv_len != STRLENOF( "0000" ) ) {
+		return LDAP_INVALID_SYNTAX;
+	}
+
+	bv.bv_len = STRLENOF( "YYYYmmddHHMMSS.uuuuuuZ#SSSSSS#SID#ssssss" );
+	bv.bv_val = buf;
+
+	ptr = bv.bv_val;
+	ptr = lutil_strncopy( ptr, gt.bv_val, STRLENOF( "YYYYmmddHH" ) );
+	ptr = lutil_strncopy( ptr, &gt.bv_val[ STRLENOF( "YYYYmmddHH:" ) ],
+		STRLENOF( "MM" ) );
+	ptr = lutil_strncopy( ptr, &gt.bv_val[ STRLENOF( "YYYYmmddHH:MM:" ) ],
+		STRLENOF( "SS" ) );
+	ptr = lutil_strcopy( ptr, ".000000Z#00" );
+	ptr = lutil_strncopy( ptr, cnt.bv_val, cnt.bv_len );
+	*ptr++ = '#';
+	*ptr++ = '0';
+	*ptr++ = '0';
+	*ptr++ = sid.bv_val[ 0 ];
+	*ptr++ = '#';
+	*ptr++ = '0';
+	*ptr++ = '0';
+	for ( i = 0; i < mod.bv_len; i++ ) {
+		*ptr++ = TOLOWER( mod.bv_val[ i ] );
+	}
+	*ptr = '\0';
+
+	assert( ptr - bv.bv_val == bv.bv_len );
+
+	if ( csnValidate( syntax, &bv ) != LDAP_SUCCESS ) {
+		return LDAP_INVALID_SYNTAX;
+	}
+
+	ber_dupbv_x( normalized, &bv, ctx );
+
+	return LDAP_SUCCESS;
+}
+
 /* Normalize a CSN in OpenLDAP 2.3 format */
 static int
 csnNormalize23(
@@ -3572,6 +3680,8 @@ csnNormalize23(
 	void *ctx )
 {
 	struct berval	gt, cnt, sid, mod;
+	struct berval	bv;
+	char		buf[ STRLENOF( "YYYYmmddHHMMSS.uuuuuuZ#SSSSSS#SID#ssssss" ) + 1 ];
 	char		*ptr;
 	int		i;
 
@@ -3622,10 +3732,10 @@ csnNormalize23(
 		return LDAP_INVALID_SYNTAX;
 	}
 
-	normalized->bv_len = STRLENOF( "YYYYmmddHHMMSS.uuuuuuZ#SSSSSS#SID#ssssss" );
-	normalized->bv_val = ber_memalloc_x( normalized->bv_len + 1, ctx );
+	bv.bv_len = STRLENOF( "YYYYmmddHHMMSS.uuuuuuZ#SSSSSS#SID#ssssss" );
+	bv.bv_val = buf;
 
-	ptr = normalized->bv_val;
+	ptr = bv.bv_val;
 	ptr = lutil_strncopy( ptr, gt.bv_val, gt.bv_len - 1 );
 	ptr = lutil_strcopy( ptr, ".000000Z#" );
 	ptr = lutil_strncopy( ptr, cnt.bv_val, cnt.bv_len );
@@ -3640,11 +3750,13 @@ csnNormalize23(
 	}
 	*ptr = '\0';
 
-	if ( ptr - normalized->bv_val != normalized->bv_len ) {
-		ber_memfree_x( normalized->bv_val, ctx );
+	assert( ptr - bv.bv_val == bv.bv_len );
+	if ( csnValidate( syntax, &bv ) != LDAP_SUCCESS ) {
 		return LDAP_INVALID_SYNTAX;
 	}
 
+	ber_dupbv_x( normalized, &bv, ctx );
+
 	return LDAP_SUCCESS;
 }
 
@@ -3677,6 +3789,12 @@ csnNormalize(
 		return csnNormalize23( usage, syntax, mr, val, normalized, ctx );
 	}
 
+	if ( val->bv_len == STRLENOF( "YYYYmmddHH:MM:SSZ#0xSSSS#I#ssss" ) ) {
+		/* Openldap 2.1 */
+
+		return csnNormalize21( usage, syntax, mr, val, normalized, ctx );
+	}
+
 	if ( val->bv_len != STRLENOF( "YYYYmmddHHMMSS.uuuuuuZ#SSSSSS#SID#ssssss" ) ) {
 		return LDAP_INVALID_SYNTAX;
 	}
-- 
2.39.5