Adding upstream version 2.4.57+dfsg.upstream/2.4.57+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 193 insertions, 0 deletions

diff --git a/servers/slapd/back-meta/suffixmassage.c b/servers/slapd/back-meta/suffixmassage.c
new file mode 100644
index 0000000..b7bb4ab
--- /dev/null
+++ b/servers/slapd/back-meta/suffixmassage.c
@@ -0,0 +1,193 @@
+/* suffixmassage.c - massages ldap backend dns */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2003-2021 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 the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was initially developed by the Howard Chu for inclusion
+ * in OpenLDAP Software and subsequently enhanced by Pierangelo
+ * Masarati.
+ */
+/* This is an altered version */
+
+/* 
+ * Copyright 1999, Howard Chu, All rights reserved. <hyc@highlandsun.com>
+ * Copyright 2000, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
+ * 
+ * Module back-ldap, originally developed by Howard Chu
+ *
+ * has been modified by Pierangelo Masarati. The original copyright
+ * notice has been maintained.
+ * 
+ * Permission is granted to anyone to use this software for any purpose
+ * on any computer system, and to alter it and redistribute it, subject
+ * to the following restrictions:
+ * 
+ * 1. The author is not responsible for the consequences of use of this
+ *    software, no matter how awful, even if they arise from flaws in it.
+ * 
+ * 2. The origin of this software must not be misrepresented, either by
+ *    explicit claim or by omission.  Since few users ever read sources,
+ *    credits should appear in the documentation.
+ * 
+ * 3. Altered versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.  Since few users
+ *    ever read sources, credits should appear in the documentation.
+ * 
+ * 4. This notice may not be removed or altered.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/string.h>
+#include <ac/socket.h>
+
+#include "slap.h"
+#include "../back-ldap/back-ldap.h"
+#include "back-meta.h"
+
+#ifdef ENABLE_REWRITE
+int
+ldap_back_dn_massage(
+	dncookie	*dc,
+	struct berval	*dn,
+	struct berval	*res )
+{
+	int		rc = 0;
+	static char	*dmy = "";
+
+	switch ( rewrite_session( dc->target->mt_rwmap.rwm_rw, dc->ctx,
+				( dn->bv_val ? dn->bv_val : dmy ),
+				dc->conn, &res->bv_val ) )
+	{
+	case REWRITE_REGEXEC_OK:
+		if ( res->bv_val != NULL ) {
+			res->bv_len = strlen( res->bv_val );
+		} else {
+			*res = *dn;
+		}
+		Debug( LDAP_DEBUG_ARGS,
+			"[rw] %s: \"%s\" -> \"%s\"\n",
+			dc->ctx,
+			BER_BVISNULL( dn ) ? "" : dn->bv_val,
+			BER_BVISNULL( res ) ? "" : res->bv_val );
+		rc = LDAP_SUCCESS;
+		break;
+ 		
+ 	case REWRITE_REGEXEC_UNWILLING:
+		if ( dc->rs ) {
+			dc->rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
+			dc->rs->sr_text = "Operation not allowed";
+		}
+		rc = LDAP_UNWILLING_TO_PERFORM;
+		break;
+	       	
+	case REWRITE_REGEXEC_ERR:
+		if ( dc->rs ) {
+			dc->rs->sr_err = LDAP_OTHER;
+			dc->rs->sr_text = "Rewrite error";
+		}
+		rc = LDAP_OTHER;
+		break;
+	}
+
+	if ( res->bv_val == dmy ) { 
+		BER_BVZERO( res );
+	}
+
+	return rc;
+}
+
+#else
+/*
+ * ldap_back_dn_massage
+ * 
+ * Aliases the suffix; based on suffix_alias (servers/slapd/suffixalias.c).
+ */
+int
+ldap_back_dn_massage(
+	dncookie *dc,
+	struct berval *odn,
+	struct berval *res
+)
+{
+	int     i, src, dst;
+	struct berval pretty = {0,NULL}, *dn = odn;
+
+	assert( res != NULL );
+
+	if ( dn == NULL ) {
+		res->bv_val = NULL;
+		res->bv_len = 0;
+		return 0;
+	}
+	if ( dc->target->mt_rwmap.rwm_suffix_massage == NULL ) {
+		*res = *dn;
+		return 0;
+	}
+
+	if ( dc->tofrom ) {
+		src = 0 + dc->normalized;
+		dst = 2 + dc->normalized;
+	} else {
+		src = 2 + dc->normalized;
+		dst = 0 + dc->normalized;
+		/* DN from remote server may be in arbitrary form.
+		 * Pretty it so we can parse reliably.
+		 */
+		dnPretty( NULL, dn, &pretty, NULL );
+		if (pretty.bv_val) dn = &pretty;
+	}
+
+	for ( i = 0;
+		dc->target->mt_rwmap.rwm_suffix_massage[i].bv_val != NULL;
+		i += 4 ) {
+		int aliasLength = dc->target->mt_rwmap.rwm_suffix_massage[i+src].bv_len;
+		int diff = dn->bv_len - aliasLength;
+
+		if ( diff < 0 ) {
+			/* alias is longer than dn */
+			continue;
+		} else if ( diff > 0 && ( !DN_SEPARATOR(dn->bv_val[diff-1]))) {
+			/* boundary is not at a DN separator */
+			continue;
+			/* At a DN Separator */
+		}
+
+		if ( !strcmp( dc->target->mt_rwmap.rwm_suffix_massage[i+src].bv_val, &dn->bv_val[diff] ) ) {
+			res->bv_len = diff + dc->target->mt_rwmap.rwm_suffix_massage[i+dst].bv_len;
+			res->bv_val = ch_malloc( res->bv_len + 1 );
+			strncpy( res->bv_val, dn->bv_val, diff );
+			strcpy( &res->bv_val[diff], dc->target->mt_rwmap.rwm_suffix_massage[i+dst].bv_val );
+			Debug( LDAP_DEBUG_ARGS,
+				"ldap_back_dn_massage:"
+				" converted \"%s\" to \"%s\"\n",
+				BER_BVISNULL( dn ) ? "" : dn->bv_val,
+				BER_BVISNULL( res ) ? "" : res->bv_val, 0 );
+			break;
+		}
+	}
+	if (pretty.bv_val) {
+		ch_free(pretty.bv_val);
+		dn = odn;
+	}
+	/* Nothing matched, just return the original DN */
+	if (res->bv_val == NULL) {
+		*res = *dn;
+	}
+
+	return 0;
+}
+#endif /* !ENABLE_REWRITE */