added ldap files by Matthew Chapman.

(This used to be commit 2bc031e8fafeafdc58c6a8056597b647d00657ae)

3 files changed, 951 insertions, 0 deletions

diff --git a/source3/groupdb/aliasldap.c b/source3/groupdb/aliasldap.c
new file mode 100644
index 0000000000..35d810dabc
--- /dev/null
+++ b/source3/groupdb/aliasldap.c
@@ -0,0 +1,316 @@
+/* 
+   Unix SMB/Netbios implementation.
+   Version 2.0.
+   LDAP local group database for SAMBA
+   Copyright (C) Matthew Chapman 1998
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+   
+*/
+
+#include "includes.h"
+
+#ifdef WITH_LDAP
+
+#include <lber.h>
+#include <ldap.h>
+
+extern int DEBUGLEVEL;
+
+/* Internal state */
+extern LDAP *ldap_struct;
+extern LDAPMessage *ldap_results;
+extern LDAPMessage *ldap_entry;
+
+/* Static structure filled for requests */
+static LOCAL_GRP localgrp;
+
+
+/***************************************************************
+  Get group and membership information.
+ ****************************************************************/
+
+static LOCAL_GRP *ldapalias_getgrp(LOCAL_GRP *group,
+		     LOCAL_GRP_MEMBER **members, int *num_membs)
+{
+	fstring temp;
+	char **values;
+	LOCAL_GRP_MEMBER *memblist;
+	char *value, *sep;
+	int i;
+
+	if(!ldap_entry)
+		return NULL;
+
+	if(!ldap_get_attribute("cn", group->name)) {
+		DEBUG(0, ("Missing cn\n"));
+                return NULL; }
+	
+	DEBUG(2,("Retrieving alias [%s]\n", group->name));
+
+        if(ldap_get_attribute("rid", temp)) {
+		group->rid = atoi(temp);
+	} else {
+		DEBUG(0, ("Missing rid\n"));
+		return NULL;
+	}
+
+	if(!ldap_get_attribute("description", group->comment))
+		group->comment[0] = 0;
+
+	if(!members || !num_membs) {
+		ldap_entry = ldap_next_entry(ldap_struct, ldap_entry);
+		return group;
+	}
+
+	if(values = ldap_get_values(ldap_struct, ldap_entry, "member")) {
+
+		*num_membs = i = ldap_count_values(values);
+		*members = memblist = malloc(i * sizeof(LOCAL_GRP_MEMBER));
+
+		do {
+			value = values[--i];
+
+		        if(!(sep = strchr(value, ','))) {
+				DEBUG(0, ("Malformed alias member\n"));
+				return NULL;
+			}
+			*(sep++) = 0;
+			fstrcpy(memblist[i].name, value);
+
+			if(!(value = strchr(sep, ','))) {
+				DEBUG(0, ("Malformed alias member\n"));
+				return NULL;
+			}
+			*(value++) = 0;
+			string_to_sid(&memblist[i].sid, sep);
+
+			if((memblist[i].sid_use = atoi(value))
+					>= SID_NAME_UNKNOWN)
+				DEBUG(0, ("Invalid SID use in alias"));
+
+		} while(i > 0);
+
+		ldap_value_free(values);
+
+	} else {
+		*num_membs = 0;
+		*members = NULL;
+	}
+
+	return group;
+}
+
+
+/************************************************************************
+  Queues the necessary modifications to save a LOCAL_GRP structure
+ ************************************************************************/
+
+static void ldapalias_grpmods(LOCAL_GRP *group, LDAPMod ***mods, int operation)
+{
+	fstring temp;
+
+	*mods = NULL;
+
+	if(operation == LDAP_MOD_ADD) { /* immutable attributes */
+		ldap_make_mod(mods, LDAP_MOD_ADD, "objectClass", "sambaAlias");
+		ldap_make_mod(mods, LDAP_MOD_ADD, "cn", group->name);
+
+		slprintf(temp, sizeof(temp)-1, "%d", (gid_t)(-1));
+		ldap_make_mod(mods, LDAP_MOD_ADD, "gidNumber", temp);
+
+		slprintf(temp, sizeof(temp)-1, "%d", group->rid);
+		ldap_make_mod(mods, LDAP_MOD_ADD, "rid", temp);
+	}
+
+	ldap_make_mod(mods, operation, "description", group->comment);
+}
+
+
+/***************************************************************
+  Begin/end smbgrp enumeration.
+ ****************************************************************/
+
+static void *ldapalias_enumfirst(BOOL update)
+{
+	if (lp_server_role() == ROLE_DOMAIN_NONE)
+		return NULL;
+
+	if (!ldap_open_connection(False))
+		return NULL;
+
+	ldap_search_for("objectClass=sambaAlias");
+
+	return ldap_struct;
+}
+
+static void ldapalias_enumclose(void *vp)
+{
+	ldap_close_connection();
+}
+
+
+/*************************************************************************
+  Save/restore the current position in a query
+ *************************************************************************/
+
+static SMB_BIG_UINT ldapalias_getdbpos(void *vp)
+{
+	return (SMB_BIG_UINT)((ulong)ldap_entry);
+}
+
+static BOOL ldapalias_setdbpos(void *vp, SMB_BIG_UINT tok)
+{
+	ldap_entry = (LDAPMessage *)((ulong)tok);
+	return (True);
+}
+
+
+/*************************************************************************
+  Return limited smb_passwd information, and group membership.
+ *************************************************************************/
+
+static LOCAL_GRP *ldapalias_getgrpbynam(const char *name,
+	       LOCAL_GRP_MEMBER **members, int *num_membs)
+{
+	fstring filter;
+	LOCAL_GRP *ret;
+
+	if(!ldap_open_connection(False))
+		return (False);
+
+	slprintf(filter, sizeof(filter)-1,
+		 "(&(cn=%s)(objectClass=sambaAlias))", name);
+	ldap_search_for(filter);
+
+	ret = ldapalias_getgrp(&localgrp, members, num_membs);
+
+	ldap_close_connection();
+	return ret;
+}
+
+static LOCAL_GRP *ldapalias_getgrpbygid(gid_t grp_id,
+	       LOCAL_GRP_MEMBER **members, int *num_membs)
+{
+	fstring filter;
+	LOCAL_GRP *ret;
+
+	if(!ldap_open_connection(False))
+		return (False);
+
+	slprintf(filter, sizeof(filter)-1,
+		 "(&(gidNumber=%d)(objectClass=sambaAlias))", grp_id);
+	ldap_search_for(filter);
+	ret = ldapalias_getgrp(&localgrp, members, num_membs);
+
+	ldap_close_connection();
+	return ret;
+}
+
+static LOCAL_GRP *ldapalias_getgrpbyrid(uint32 grp_rid,
+	       LOCAL_GRP_MEMBER **members, int *num_membs)
+{
+	fstring filter;
+	LOCAL_GRP *ret;
+
+	if(!ldap_open_connection(False))
+		return (False);
+
+	slprintf(filter, sizeof(filter)-1,
+		 "(&(rid=%d)(objectClass=sambaAlias))", grp_rid);
+	ldap_search_for(filter);
+	ret = ldapalias_getgrp(&localgrp, members, num_membs);
+
+	ldap_close_connection();
+	return ret;
+}
+
+static LOCAL_GRP *ldapalias_getcurrentgrp(void *vp,
+	       LOCAL_GRP_MEMBER **members, int *num_membs)
+{
+	return ldapalias_getgrp(&localgrp, members, num_membs);
+}
+
+static BOOL ldapalias_addgrp(LOCAL_GRP *group)
+{
+	LDAPMod **mods;
+
+	ldapalias_grpmods(group, &mods, LDAP_MOD_ADD); 
+	return ldap_makemods("cn", group->name, mods, True);
+}
+
+static BOOL ldapalias_modgrp(LOCAL_GRP *group)
+{
+	LDAPMod **mods;
+
+	ldapalias_grpmods(group, &mods, LDAP_MOD_REPLACE);
+	return ldap_makemods("cn", group->name, mods, False);
+}
+
+static BOOL ldapalias_getusergroups(const char *name, LOCAL_GRP **groups,
+				    int *num_grps)
+{
+	LOCAL_GRP *grouplist;
+	fstring filter;
+	int i;
+
+	slprintf(filter, sizeof(pstring)-1,
+		 "(&(member=%s,*)(objectclass=sambaAlias))", name);
+	ldap_search_for(filter);
+
+	*num_grps = i = ldap_count_entries(ldap_struct, ldap_results);
+
+	if(!i) {
+		*groups = NULL;
+		return (True);
+	}
+
+	*groups = grouplist = malloc(i * sizeof(LOCAL_GRP));
+	do {
+		i--;
+	} while(ldapalias_getgrp(&grouplist[i], NULL, NULL) && (i > 0));
+
+	return (True);
+}
+
+
+static struct aliasdb_ops ldapalias_ops =
+{
+	ldapalias_enumfirst,
+	ldapalias_enumclose,
+	ldapalias_getdbpos,
+	ldapalias_setdbpos,
+
+	ldapalias_getgrpbynam,
+	ldapalias_getgrpbygid,
+	ldapalias_getgrpbyrid,
+	ldapalias_getcurrentgrp,
+
+	ldapalias_addgrp,
+	ldapalias_modgrp,
+
+	ldapalias_getusergroups
+};
+
+struct aliasdb_ops *ldap_initialise_alias_db(void)
+{
+	return &ldapalias_ops;
+}
+
+#else
+ void aliasldap_dummy_function(void);
+ void aliasldap_dummy_function(void) { } /* stop some compilers complaining */
+#endif
+
diff --git a/source3/groupdb/builtinldap.c b/source3/groupdb/builtinldap.c
new file mode 100644
index 0000000000..f2a530cbb9
--- /dev/null
+++ b/source3/groupdb/builtinldap.c
@@ -0,0 +1,317 @@
+/* 
+   Unix SMB/Netbios implementation.
+   Version 2.0.
+   LDAP builtin group database for SAMBA
+   Copyright (C) Matthew Chapman 1998
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+   
+*/
+
+#include "includes.h"
+
+#ifdef WITH_LDAP
+
+#include <lber.h>
+#include <ldap.h>
+
+extern int DEBUGLEVEL;
+
+/* Internal state */
+extern LDAP *ldap_struct;
+extern LDAPMessage *ldap_results;
+extern LDAPMessage *ldap_entry;
+
+/* Static structure filled for requests */
+static LOCAL_GRP localgrp;
+
+
+/***************************************************************
+  Get group and membership information.
+ ****************************************************************/
+
+static LOCAL_GRP *ldapbuiltin_getgrp(LOCAL_GRP *group,
+		     LOCAL_GRP_MEMBER **members, int *num_membs)
+{
+	fstring temp;
+	char **values;
+	LOCAL_GRP_MEMBER *memblist;
+	char *value, *sep;
+	int i;
+
+	if(!ldap_entry)
+		return NULL;
+
+	if(!ldap_get_attribute("cn", group->name)) {
+		DEBUG(0, ("Missing cn\n"));
+                return NULL; }
+	
+	DEBUG(2,("Retrieving alias [%s]\n", group->name));
+
+        if(ldap_get_attribute("rid", temp)) {
+		group->rid = atoi(temp);
+	} else {
+		DEBUG(0, ("Missing rid\n"));
+		return NULL;
+	}
+
+	if(!ldap_get_attribute("description", group->comment))
+		group->comment[0] = 0;
+
+	if(!members || !num_membs) {
+		ldap_entry = ldap_next_entry(ldap_struct, ldap_entry);
+		return group;
+	}
+
+	if(values = ldap_get_values(ldap_struct, ldap_entry, "member")) {
+
+		*num_membs = i = ldap_count_values(values);
+		*members = memblist = malloc(i * sizeof(LOCAL_GRP_MEMBER));
+
+		do {
+			value = values[--i];
+
+		        if(!(sep = strchr(value, ','))) {
+				DEBUG(0, ("Malformed alias member\n"));
+				return NULL;
+			}
+			*(sep++) = 0;
+			fstrcpy(memblist[i].name, value);
+
+			if(!(value = strchr(sep, ','))) {
+				DEBUG(0, ("Malformed alias member\n"));
+				return NULL;
+			}
+			*(value++) = 0;
+			string_to_sid(&memblist[i].sid, sep);
+
+			if((memblist[i].sid_use = atoi(value))
+					>= SID_NAME_UNKNOWN)
+				DEBUG(0, ("Invalid SID use in alias"));
+
+		} while(i > 0);
+
+		ldap_value_free(values);
+
+	} else {
+		*num_membs = 0;
+		*members = NULL;
+	}
+
+	return group;
+}
+
+
+/************************************************************************
+  Queues the necessary modifications to save a LOCAL_GRP structure
+ ************************************************************************/
+
+static void ldapbuiltin_grpmods(LOCAL_GRP *group, LDAPMod ***mods,
+			int operation)
+{
+	fstring temp;
+
+	*mods = NULL;
+
+	if(operation == LDAP_MOD_ADD) { /* immutable attributes */
+		ldap_make_mod(mods, LDAP_MOD_ADD, "objectClass", "sambaBuiltin");
+		ldap_make_mod(mods, LDAP_MOD_ADD, "cn", group->name);
+
+		slprintf(temp, sizeof(temp)-1, "%d", (gid_t)(-1));
+		ldap_make_mod(mods, LDAP_MOD_ADD, "gidNumber", temp);
+
+		slprintf(temp, sizeof(temp)-1, "%d", group->rid);
+		ldap_make_mod(mods, LDAP_MOD_ADD, "rid", temp);
+	}
+
+	ldap_make_mod(mods, operation, "description", group->comment);
+}
+
+
+/***************************************************************
+  Begin/end smbgrp enumeration.
+ ****************************************************************/
+
+static void *ldapbuiltin_enumfirst(BOOL update)
+{
+	if (lp_server_role() == ROLE_DOMAIN_NONE)
+		return NULL;
+
+	if (!ldap_open_connection(False))
+		return NULL;
+
+	ldap_search_for("objectClass=sambaBuiltin");
+
+	return ldap_struct;
+}
+
+static void ldapbuiltin_enumclose(void *vp)
+{
+	ldap_close_connection();
+}
+
+
+/*************************************************************************
+  Save/restore the current position in a query
+ *************************************************************************/
+
+static SMB_BIG_UINT ldapbuiltin_getdbpos(void *vp)
+{
+	return (SMB_BIG_UINT)((ulong)ldap_entry);
+}
+
+static BOOL ldapbuiltin_setdbpos(void *vp, SMB_BIG_UINT tok)
+{
+	ldap_entry = (LDAPMessage *)((ulong)tok);
+	return (True);
+}
+
+
+/*************************************************************************
+  Return limited smb_passwd information, and group membership.
+ *************************************************************************/
+
+static LOCAL_GRP *ldapbuiltin_getgrpbynam(const char *name,
+	       LOCAL_GRP_MEMBER **members, int *num_membs)
+{
+	fstring filter;
+	LOCAL_GRP *ret;
+
+	if(!ldap_open_connection(False))
+		return (False);
+
+	slprintf(filter, sizeof(filter)-1,
+		 "(&(cn=%s)(objectClass=sambaBuiltin))", name);
+	ldap_search_for(filter);
+
+	ret = ldapbuiltin_getgrp(&localgrp, members, num_membs);
+
+	ldap_close_connection();
+	return ret;
+}
+
+static LOCAL_GRP *ldapbuiltin_getgrpbygid(gid_t grp_id,
+	       LOCAL_GRP_MEMBER **members, int *num_membs)
+{
+	fstring filter;
+	LOCAL_GRP *ret;
+
+	if(!ldap_open_connection(False))
+		return (False);
+
+	slprintf(filter, sizeof(filter)-1,
+		 "(&(gidNumber=%d)(objectClass=sambaBuiltin))", grp_id);
+	ldap_search_for(filter);
+	ret = ldapbuiltin_getgrp(&localgrp, members, num_membs);
+
+	ldap_close_connection();
+	return ret;
+}
+
+static LOCAL_GRP *ldapbuiltin_getgrpbyrid(uint32 grp_rid,
+	       LOCAL_GRP_MEMBER **members, int *num_membs)
+{
+	fstring filter;
+	LOCAL_GRP *ret;
+
+	if(!ldap_open_connection(False))
+		return (False);
+
+	slprintf(filter, sizeof(filter)-1,
+		 "(&(rid=%d)(objectClass=sambaBuiltin))", grp_rid);
+	ldap_search_for(filter);
+	ret = ldapbuiltin_getgrp(&localgrp, members, num_membs);
+
+	ldap_close_connection();
+	return ret;
+}
+
+static LOCAL_GRP *ldapbuiltin_getcurrentgrp(void *vp,
+	       LOCAL_GRP_MEMBER **members, int *num_membs)
+{
+	return ldapbuiltin_getgrp(&localgrp, members, num_membs);
+}
+
+static BOOL ldapbuiltin_addgrp(LOCAL_GRP *group)
+{
+	LDAPMod **mods;
+
+	ldapbuiltin_grpmods(group, &mods, LDAP_MOD_ADD); 
+	return ldap_makemods("cn", group->name, mods, True);
+}
+
+static BOOL ldapbuiltin_modgrp(LOCAL_GRP *group)
+{
+	LDAPMod **mods;
+
+	ldapbuiltin_grpmods(group, &mods, LDAP_MOD_REPLACE);
+	return ldap_makemods("cn", group->name, mods, False);
+}
+
+static BOOL ldapbuiltin_getusergroups(const char *name,
+			LOCAL_GRP **groups, int *num_grps)
+{
+	LOCAL_GRP *grouplist;
+	fstring filter;
+	int i;
+
+	slprintf(filter, sizeof(pstring)-1,
+		 "(&(member=%s,*)(objectclass=sambaBuiltin))", name);
+	ldap_search_for(filter);
+
+	*num_grps = i = ldap_count_entries(ldap_struct, ldap_results);
+
+	if(!i) {
+		*groups = NULL;
+		return (True);
+	}
+
+	*groups = grouplist = malloc(i * sizeof(LOCAL_GRP));
+	do {
+		i--;
+	} while(ldapbuiltin_getgrp(&grouplist[i], NULL, NULL) && (i > 0));
+
+	return (True);
+}
+
+
+static struct aliasdb_ops ldapbuiltin_ops =
+{
+	ldapbuiltin_enumfirst,
+	ldapbuiltin_enumclose,
+	ldapbuiltin_getdbpos,
+	ldapbuiltin_setdbpos,
+
+	ldapbuiltin_getgrpbynam,
+	ldapbuiltin_getgrpbygid,
+	ldapbuiltin_getgrpbyrid,
+	ldapbuiltin_getcurrentgrp,
+
+	ldapbuiltin_addgrp,
+	ldapbuiltin_modgrp,
+
+	ldapbuiltin_getusergroups
+};
+
+struct aliasdb_ops *ldap_initialise_builtin_db(void)
+{
+	return &ldapbuiltin_ops;
+}
+
+#else
+ void builtinldap_dummy_function(void);
+ void builtinldap_dummy_function(void) { } /* stop some compilers complaining */
+#endif
+
diff --git a/source3/groupdb/groupldap.c b/source3/groupdb/groupldap.c
new file mode 100644
index 0000000000..df0d755240
--- /dev/null
+++ b/source3/groupdb/groupldap.c
@@ -0,0 +1,318 @@
+/* 
+   Unix SMB/Netbios implementation.
+   Version 2.0.
+   LDAP domain group database for SAMBA
+   Copyright (C) Matthew Chapman 1998
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+   
+*/
+
+#include "includes.h"
+
+#ifdef WITH_LDAP
+
+#include <lber.h>
+#include <ldap.h>
+
+extern int DEBUGLEVEL;
+
+/* Internal state */
+extern LDAP *ldap_struct;
+extern LDAPMessage *ldap_results;
+extern LDAPMessage *ldap_entry;
+
+/* Static structure filled for requests */
+static DOMAIN_GRP domgrp;
+
+
+/***************************************************************
+  Get group and membership information.
+ ****************************************************************/
+
+static DOMAIN_GRP *ldapgroup_getgrp(DOMAIN_GRP *group,
+			     DOMAIN_GRP_MEMBER **members, int *num_membs)
+{
+	fstring temp;
+	char **values;
+	DOMAIN_GRP_MEMBER *memblist;
+	int i;
+
+	if(!ldap_entry)
+		return NULL;
+
+	if(!ldap_get_attribute("cn", group->name)) {
+		DEBUG(0, ("Missing cn\n"));
+                return NULL; }
+
+	DEBUG(2,("Retrieving group [%s]\n", group->name));
+
+        if(ldap_get_attribute("rid", temp)) {
+		group->rid = atoi(temp);
+	} else {
+		DEBUG(0, ("Missing rid\n"));
+		return NULL;
+	}
+
+	if(!ldap_get_attribute("description", group->comment))
+		group->comment[0] = 0;
+
+	group->attr = 0x7;
+
+	if(!members || !num_membs) {
+		ldap_entry = ldap_next_entry(ldap_struct, ldap_entry);
+		return group;
+	}
+
+	if(values = ldap_get_values(ldap_struct, ldap_entry, "uidMember")) {
+
+		DEBUG(0, ("Need to return NT names here\n"));
+
+		*num_membs = i = ldap_count_values(values);
+		*members = memblist = malloc(i * sizeof(DOMAIN_GRP_MEMBER));
+
+		do {
+			fstrcpy(memblist[--i].name, values[i]);
+			memblist[i].attr = 0x7;
+		} while(i > 0);
+
+		ldap_value_free(values);
+
+	} else {
+		*num_membs = 0;
+		*members = NULL;
+	}
+
+	ldap_entry = ldap_next_entry(ldap_struct, ldap_entry);
+	return group;
+}
+
+
+/************************************************************************
+  Queues the necessary modifications to save a DOMAIN_GRP structure
+ ************************************************************************/
+
+static void ldapgroup_grpmods(DOMAIN_GRP *group, LDAPMod ***mods,
+			      int operation)
+{
+	fstring temp;
+
+	*mods = NULL;
+
+	if(operation == LDAP_MOD_ADD) { /* immutable attributes */
+		ldap_make_mod(mods, LDAP_MOD_ADD, "objectClass", "sambaGroup");
+		ldap_make_mod(mods, LDAP_MOD_ADD, "cn", group->name);
+
+		slprintf(temp, sizeof(temp)-1, "%d", (gid_t)(-1));
+		ldap_make_mod(mods, LDAP_MOD_ADD, "gidNumber", temp);
+
+		slprintf(temp, sizeof(temp)-1, "%d", group->rid);
+		ldap_make_mod(mods, LDAP_MOD_ADD, "rid", temp);
+	}
+
+	ldap_make_mod(mods, operation, "description", group->comment);
+}
+
+
+/***************************************************************
+  Begin/end domain group enumeration.
+ ****************************************************************/
+
+static void *ldapgroup_enumfirst(BOOL update)
+{
+	int server_role = lp_server_role();
+
+        if (server_role == ROLE_DOMAIN_NONE ||
+			server_role == ROLE_DOMAIN_MEMBER)
+                return NULL;
+
+	if (!ldap_open_connection(False))
+		return NULL;
+
+	ldap_search_for("objectclass=sambaGroup");
+
+	return ldap_struct;
+}
+
+static void ldapgroup_enumclose(void *vp)
+{
+	ldap_close_connection();
+}
+
+
+/*************************************************************************
+  Save/restore the current position in a query
+ *************************************************************************/
+
+static SMB_BIG_UINT ldapgroup_getdbpos(void *vp)
+{
+	return (SMB_BIG_UINT)((ulong)ldap_entry);
+}
+
+static BOOL ldapgroup_setdbpos(void *vp, SMB_BIG_UINT tok)
+{
+	ldap_entry = (LDAPMessage *)((ulong)tok);
+	return (True);
+}
+
+
+/*************************************************************************
+  Return information about domain groups and their members.
+ *************************************************************************/
+
+static DOMAIN_GRP *ldapgroup_getgrpbynam(const char *name,
+	       DOMAIN_GRP_MEMBER **members, int *num_membs)
+{
+	fstring filter;
+	DOMAIN_GRP *ret;
+
+	if(!ldap_open_connection(False))
+		return (False);
+
+	slprintf(filter, sizeof(filter)-1,
+		 "(&(cn=%s)(objectClass=sambaGroup))", name);
+	ldap_search_for(filter);
+
+	ret = ldapgroup_getgrp(&domgrp, members, num_membs);
+
+	ldap_close_connection();
+	return ret;
+}
+
+static DOMAIN_GRP *ldapgroup_getgrpbygid(gid_t grp_id,
+	       DOMAIN_GRP_MEMBER **members, int *num_membs)
+{
+	fstring filter;
+	DOMAIN_GRP *ret;
+
+	if(!ldap_open_connection(False))
+		return (False);
+
+	slprintf(filter, sizeof(filter)-1,
+		 "(&(gidNumber=%d)(objectClass=sambaGroup))", grp_id);
+	ldap_search_for(filter);
+
+	ret = ldapgroup_getgrp(&domgrp, members, num_membs);
+
+	ldap_close_connection();
+	return ret;
+}
+
+static DOMAIN_GRP *ldapgroup_getgrpbyrid(uint32 grp_rid,
+	       DOMAIN_GRP_MEMBER **members, int *num_membs)
+{
+	fstring filter;
+	DOMAIN_GRP *ret;
+
+	if(!ldap_open_connection(False))
+		return (False);
+
+	slprintf(filter, sizeof(filter)-1,
+		 "(&(rid=%d)(objectClass=sambaGroup))", grp_rid);
+	ldap_search_for(filter);
+
+	ret = ldapgroup_getgrp(&domgrp, members, num_membs);
+
+	ldap_close_connection();
+	return ret;
+}
+
+static DOMAIN_GRP *ldapgroup_getcurrentgrp(void *vp,
+	       DOMAIN_GRP_MEMBER **members, int *num_membs)
+{
+	return ldapgroup_getgrp(&domgrp, members, num_membs);
+}
+
+
+/*************************************************************************
+  Add/modify domain groups.
+ *************************************************************************/
+
+static BOOL ldapgroup_addgrp(DOMAIN_GRP *group)
+{
+	LDAPMod **mods;
+
+	ldapgroup_grpmods(group, &mods, LDAP_MOD_ADD); 
+	return ldap_makemods("cn", group->name, mods, True);
+}
+
+static BOOL ldapgroup_modgrp(DOMAIN_GRP *group)
+{
+	LDAPMod **mods;
+
+	ldapgroup_grpmods(group, &mods, LDAP_MOD_REPLACE);
+	return ldap_makemods("cn", group->name, mods, False);
+}
+
+
+/*************************************************************************
+  Return domain groups that a user is in.
+ *************************************************************************/
+
+static BOOL ldapgroup_getusergroups(const char *name, DOMAIN_GRP **groups,
+				    int *num_grps)
+{
+	DOMAIN_GRP *grouplist;
+	fstring filter;
+	int i;
+
+	slprintf(filter, sizeof(pstring)-1,
+		 "(&(uidMember=%s)(objectclass=sambaGroup))", name);
+	ldap_search_for(filter);
+
+	*num_grps = i = ldap_count_entries(ldap_struct, ldap_results);
+
+	if(!i) {
+		*groups = NULL;
+		return (True);
+	}
+
+	*groups = grouplist = malloc(i * sizeof(DOMAIN_GRP));
+	do {
+		i--;
+	} while(ldapgroup_getgrp(&grouplist[i], NULL, NULL) && (i > 0));
+
+	return (True);
+}
+
+
+static struct groupdb_ops ldapgroup_ops =
+{
+	ldapgroup_enumfirst,
+	ldapgroup_enumclose,
+	ldapgroup_getdbpos,
+	ldapgroup_setdbpos,
+
+	ldapgroup_getgrpbynam,
+	ldapgroup_getgrpbygid,
+	ldapgroup_getgrpbyrid,
+	ldapgroup_getcurrentgrp,
+
+	ldapgroup_addgrp,
+	ldapgroup_modgrp,
+
+	ldapgroup_getusergroups
+};
+
+struct groupdb_ops *ldap_initialise_group_db(void)
+{
+	return &ldapgroup_ops;
+}
+
+#else
+ void groupldap_dummy_function(void);
+ void groupldap_dummy_function(void) { } /* stop some compilers complaining */
+#endif
+