Merge branch 'master' of ssh://git.samba.org/data/git/samba into abartlet-devel

9 files changed, 3756 insertions, 1 deletions

diff --git a/source3/Makefile.in b/source3/Makefile.in
index 8304981a1f..1ce0ce9067 100644
--- a/source3/Makefile.in
+++ b/source3/Makefile.in
@@ -985,6 +985,14 @@ IDMAP_HASH_OBJ = \
 		winbindd/idmap_hash/idmap_hash.o \
 		winbindd/idmap_hash/mapfile.o
 
+IDMAP_ADEX_OBJ = \
+		winbindd/idmap_adex/idmap_adex.o \
+		winbindd/idmap_adex/cell_util.o \
+		winbindd/idmap_adex/likewise_cell.o \
+		winbindd/idmap_adex/provider_unified.o \
+		winbindd/idmap_adex/gc_util.o \
+		winbindd/idmap_adex/domain_util.o
+
 WINBINDD_OBJ1 = \
 		winbindd/winbindd.o       \
 		winbindd/winbindd_user.o  \
@@ -2218,6 +2226,10 @@ bin/hash.@SHLIBEXT@: $(BINARY_PREREQS) $(IDMAP_HASH_OBJ)
 	@echo "Building plugin $@"
 	@$(SHLD_MODULE) $(IDMAP_HASH_OBJ)
 
+bin/adex.@SHLIBEXT@: $(BINARY_PREREQS) $(IDMAP_ADEX_OBJ)
+	@echo "Building plugin $@"
+	@$(SHLD_MODULE) $(IDMAP_ADEX_OBJ)
+
 bin/tdb2.@SHLIBEXT@: $(BINARY_PREREQS) winbindd/idmap_tdb2.o
 	@echo "Building plugin $@"
 	@$(SHLD_MODULE) winbindd/idmap_tdb2.o
diff --git a/source3/configure.in b/source3/configure.in
index 640afc47fb..f23f6b55be 100644
--- a/source3/configure.in
+++ b/source3/configure.in
@@ -6058,6 +6058,7 @@ SMB_MODULE(idmap_nss, winbindd/idmap_nss.o, "bin/nss.$SHLIBEXT", IDMAP)
 SMB_MODULE(idmap_rid, winbindd/idmap_rid.o, "bin/rid.$SHLIBEXT", IDMAP)
 SMB_MODULE(idmap_ad, winbindd/idmap_ad.o, "bin/ad.$SHLIBEXT", IDMAP)
 SMB_MODULE(idmap_hash, \$(IDMAP_HASH_OBJ), "bin/hash.$SHLIBEXT", IDMAP)
+SMB_MODULE(idmap_adex, \$(IDMAP_ADEX_OBJ), "bin/adex.$SHLIBEXT", IDMAP)
 SMB_SUBSYSTEM(IDMAP, winbindd/idmap.o)
 
 SMB_MODULE(nss_info_template, winbindd/nss_info_template.o, "bin/template.$SHLIBEXT", NSS_INFO)
@@ -6271,8 +6272,10 @@ fi
 SMBD_LIBS="$samba_dmapi_libs"
 AC_SUBST(SMBD_LIBS)
 
+CFLAGS="${CFLAGS} \$(FLAGS)"
+
 if test x$MERGED_BUILD != x1; then
-	CFLAGS="${CFLAGS} \$(FLAGS) -D_SAMBA_BUILD_=3"
+	CFLAGS="${CFLAGS} -D_SAMBA_BUILD_=3"
 fi
 
 AC_OUTPUT(Makefile
diff --git a/source3/winbindd/idmap_adex/cell_util.c b/source3/winbindd/idmap_adex/cell_util.c
new file mode 100644
index 0000000000..f5c08a0454
--- /dev/null
+++ b/source3/winbindd/idmap_adex/cell_util.c
@@ -0,0 +1,292 @@
+/*
+ * idmap_adex: Support for AD Forests
+ *
+ * Copyright (C) Gerald (Jerry) Carter 2006-2008
+ *
+ * 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"
+#include "idmap_adex.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_IDMAP
+
+/**********************************************************************
+**********************************************************************/
+
+ char *find_attr_string(char **list, size_t num_lines, const char *substr)
+{
+	int i;
+	int cmplen = strlen(substr);
+
+	for (i = 0; i < num_lines; i++) {
+		/* make sure to avoid substring matches like uid
+		   and uidNumber */
+		if ((StrnCaseCmp(list[i], substr, cmplen) == 0) &&
+		    (list[i][cmplen] == '=')) {
+			/* Don't return an empty string */
+			if (list[i][cmplen + 1] != '\0')
+				return &(list[i][cmplen + 1]);
+
+			return NULL;
+		}
+	}
+
+	return NULL;
+}
+
+/**********************************************************************
+**********************************************************************/
+
+ bool is_object_class(char **list, size_t num_lines, const char *substr)
+{
+	int i;
+
+	for (i = 0; i < num_lines; i++) {
+		if (strequal(list[i], substr)) {
+			return true;
+		}
+	}
+
+	return false;
+}
+
+/**********************************************************************
+ Find out about the cell (e.g. use2307Attrs, etc...)
+**********************************************************************/
+
+ NTSTATUS cell_lookup_settings(struct likewise_cell * cell)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+
+	/* Parameter check */
+
+	if (!cell) {
+		nt_status = NT_STATUS_INVALID_PARAMETER;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	/* Only supporting Forest-wide, schema based searches */
+
+	cell_set_flags(cell, LWCELL_FLAG_USE_RFC2307_ATTRS);
+	cell_set_flags(cell, LWCELL_FLAG_SEARCH_FOREST);
+
+	cell->provider = &ccp_unified;
+
+	nt_status = NT_STATUS_OK;
+
+done:
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		DEBUG(1,("LWI: Failed to obtain cell settings (%s)\n",
+			 nt_errstr(nt_status)));
+	}
+
+	return nt_status;
+}
+
+
+static NTSTATUS cell_lookup_forest(struct likewise_cell *c)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	struct gc_info *gc = NULL;
+
+	if (!c) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	if ((gc = TALLOC_ZERO_P(NULL, struct gc_info)) == NULL) {
+		nt_status = NT_STATUS_NO_MEMORY;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	/* Query the rootDSE for the forest root naming conect first.
+           Check that the a GC server for the forest has not already
+	   been added */
+
+	nt_status = gc_find_forest_root(gc, cell_dns_domain(c));
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	c->forest_name = talloc_strdup(c, gc->forest_name);
+	BAIL_ON_PTR_ERROR(c->forest_name, nt_status);
+
+done:
+	if (gc) {
+		talloc_free(gc);
+	}
+
+	return nt_status;
+}
+
+/**********************************************************************
+**********************************************************************/
+
+ NTSTATUS cell_locate_membership(ADS_STRUCT * ads)
+{
+	ADS_STATUS status;
+	char *domain_dn = ads_build_dn(lp_realm());
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	DOM_SID sid;
+	struct likewise_cell *cell = NULL;
+
+	/* In the Likewise plugin, I had to support the concept of cells
+	   based on the machine's membership in an OU.  However, now I'll
+	   just assume our membership in the forest cell */
+
+	DEBUG(2, ("locate_cell_membership: Located membership "
+		  "in cell \"%s\"\n", domain_dn));
+
+	if ((cell = cell_new()) == NULL) {
+		nt_status = NT_STATUS_NO_MEMORY;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	status = ads_domain_sid(ads, &sid);
+	if (!ADS_ERR_OK(status)) {
+		DEBUG(3,("locate_cell_membership: Failed to find "
+			 "domain SID for %s\n", domain_dn));
+	}
+
+	/* save the SID and search base for our domain */
+
+	cell_set_dns_domain(cell, lp_realm());
+	cell_set_connection(cell, ads);
+	cell_set_dn(cell, domain_dn);
+	cell_set_domain_sid(cell, &sid);
+
+	/* Now save our forest root */
+
+	cell_lookup_forest(cell);
+
+	/* Add the cell to the list */
+
+	if (!cell_list_add(cell)) {
+		nt_status = NT_STATUS_INSUFFICIENT_RESOURCES;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	/* Done! */
+	nt_status = NT_STATUS_OK;
+
+done:
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		DEBUG(0,("LWI: Failed to locate cell membership (%s)\n",
+			 nt_errstr(nt_status)));
+	}
+
+	SAFE_FREE(domain_dn);
+
+	return nt_status;
+}
+
+/*********************************************************************
+ ********************************************************************/
+
+ int min_id_value(void)
+{
+	int id_val;
+
+	id_val = lp_parm_int(-1, "lwidentity", "min_id_value", MIN_ID_VALUE);
+
+	/* Still don't let it go below 50 */
+
+	return MAX(50, id_val);
+}
+
+/********************************************************************
+ *******************************************************************/
+
+ char *cell_dn_to_dns(const char *dn)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	char *domain = NULL;
+	char *dns_name = NULL;
+	const char *tmp_dn;
+	char *buffer = NULL;
+	TALLOC_CTX *frame = talloc_stackframe();
+
+	if (!dn || !*dn) {
+		goto done;
+	}
+
+	tmp_dn = talloc_strdup(frame, dn);
+	BAIL_ON_PTR_ERROR(tmp_dn, nt_status);
+
+	while (next_token_talloc(frame, &tmp_dn, &buffer, ",")) {
+
+		/* skip everything up the where DC=... begins */
+		if (StrnCaseCmp(buffer, "DC=", 3) != 0)
+			continue;
+
+		if (!domain) {
+			domain = talloc_strdup(frame, &buffer[3]);
+		} else {
+			domain = talloc_asprintf_append(domain, ".%s",
+							&buffer[3]);
+		}
+		BAIL_ON_PTR_ERROR(domain, nt_status);
+	}
+
+	dns_name = SMB_STRDUP(domain);
+	BAIL_ON_PTR_ERROR(dns_name, nt_status);
+
+	nt_status = NT_STATUS_OK;
+
+done:
+	PRINT_NTSTATUS_ERROR(nt_status, "cell_dn_to_dns", 1);
+
+	talloc_destroy(frame);
+
+	return dns_name;
+}
+
+/*********************************************************************
+ ********************************************************************/
+
+ NTSTATUS get_sid_type(ADS_STRUCT *ads,
+		       LDAPMessage *msg,
+		       enum lsa_SidType *type)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	uint32_t atype;
+
+	if (!ads_pull_uint32(ads, msg, "sAMAccountType", &atype)) {
+		nt_status = NT_STATUS_INVALID_USER_BUFFER;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	switch (atype &0xF0000000) {
+	case ATYPE_SECURITY_GLOBAL_GROUP:
+		*type = SID_NAME_DOM_GRP;
+		break;
+	case ATYPE_SECURITY_LOCAL_GROUP:
+		*type = SID_NAME_ALIAS;
+		break;
+	case ATYPE_NORMAL_ACCOUNT:
+	case ATYPE_WORKSTATION_TRUST:
+	case ATYPE_INTERDOMAIN_TRUST:
+		*type = SID_NAME_USER;
+		break;
+	default:
+		*type = SID_NAME_USE_NONE;
+		nt_status = NT_STATUS_INVALID_ACCOUNT_NAME;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	nt_status = NT_STATUS_OK;
+
+done:
+	return nt_status;
+}
diff --git a/source3/winbindd/idmap_adex/domain_util.c b/source3/winbindd/idmap_adex/domain_util.c
new file mode 100644
index 0000000000..ab31ccef7a
--- /dev/null
+++ b/source3/winbindd/idmap_adex/domain_util.c
@@ -0,0 +1,278 @@
+/*
+ * idmap_adex: Domain search interface
+ *
+ * Copyright (C) Gerald (Jerry) Carter 2007-2008
+ *
+ * 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"
+#include "idmap_adex.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_IDMAP
+
+struct dc_info {
+	struct dc_info *prev, *next;
+	char *dns_name;
+	struct likewise_cell *domain_cell;
+};
+
+static struct dc_info *_dc_server_list = NULL;
+
+
+/**********************************************************************
+ *********************************************************************/
+
+static struct dc_info *dc_list_head(void)
+{
+	return _dc_server_list;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+static NTSTATUS dc_add_domain(const char *domain)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	struct dc_info *dc = NULL;
+
+	/* Check for duplicates */
+
+	dc = dc_list_head();
+	while (dc) {
+		if (strequal (dc->dns_name, domain))
+			break;
+		dc = dc->next;
+	}
+
+	if (dc) {
+		DEBUG(10,("dc_add_domain: %s already in list\n", domain));
+		return NT_STATUS_OK;
+	}
+
+	dc = TALLOC_ZERO_P(NULL, struct dc_info);
+	BAIL_ON_PTR_ERROR(dc, nt_status);
+
+	dc->dns_name = talloc_strdup(dc, domain);
+	BAIL_ON_PTR_ERROR(dc->dns_name, nt_status);
+
+	DLIST_ADD_END(_dc_server_list, dc, struct dc_info*);
+
+	nt_status = NT_STATUS_OK;
+
+done:
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		talloc_destroy(dc);
+		DEBUG(0,("LWI: Failed to add new DC connection for %s (%s)\n",
+			 domain, nt_errstr(nt_status)));
+	}
+
+	return nt_status;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+static void dc_server_list_destroy(void)
+{
+	struct dc_info *dc = dc_list_head();
+
+	while (dc) {
+		struct dc_info *p = dc->next;
+
+		cell_destroy(dc->domain_cell);
+		talloc_destroy(dc);
+
+		dc = p;
+	}
+
+	return;
+}
+
+
+/**********************************************************************
+ *********************************************************************/
+
+ NTSTATUS domain_init_list(void)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	struct winbindd_tdc_domain *domains = NULL;
+	size_t num_domains = 0;
+	int i;
+
+	if (_dc_server_list != NULL) {
+		dc_server_list_destroy();
+	}
+
+	/* Add our domain */
+
+	nt_status = dc_add_domain(lp_realm());
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	if (!wcache_tdc_fetch_list(&domains, &num_domains)) {
+		nt_status = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	/* Add all domains with an incoming trust path */
+
+	for (i=0; i<num_domains; i++) {
+		uint32_t flags = (NETR_TRUST_FLAG_INBOUND|NETR_TRUST_FLAG_IN_FOREST);
+
+		/* We just require one of the flags to be set here */
+
+		if (domains[i].trust_flags & flags) {
+			nt_status = dc_add_domain(domains[i].dns_name);
+			BAIL_ON_NTSTATUS_ERROR(nt_status);
+		}
+	}
+
+	nt_status = NT_STATUS_OK;
+
+done:
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		DEBUG(2,("LWI: Failed to initialize DC list (%s)\n",
+			 nt_errstr(nt_status)));
+	}
+
+	TALLOC_FREE(domains);
+
+	return nt_status;
+}
+
+/********************************************************************
+ *******************************************************************/
+
+static NTSTATUS dc_do_search(struct dc_info *dc,
+			     const char *search_base,
+			     int scope,
+			     const char *expr,
+			     const char **attrs,
+			     LDAPMessage ** msg)
+{
+	ADS_STATUS status = ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+
+	status = cell_do_search(dc->domain_cell, search_base,
+				scope, expr, attrs, msg);
+	nt_status = ads_ntstatus(status);
+
+	return nt_status;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+static struct dc_info *dc_find_domain(const char *dns_domain)
+{
+	struct dc_info *dc = dc_list_head();
+
+	if (!dc)
+		return NULL;
+
+	while (dc) {
+		if (strequal(dc->dns_name, dns_domain)) {
+			return dc;
+		}
+
+		dc = dc->next;
+	}
+
+	return NULL;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+ NTSTATUS dc_search_domains(struct likewise_cell **cell,
+			    LDAPMessage **msg,
+			    const char *dn,
+			    const DOM_SID *sid)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	TALLOC_CTX *frame = talloc_stackframe();
+	char *dns_domain;
+	const char *attrs[] = { "*", NULL };
+	struct dc_info *dc = NULL;
+	const char *base = NULL;
+
+	if (!dn || !*dn) {
+		nt_status = NT_STATUS_INVALID_PARAMETER;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	dns_domain = cell_dn_to_dns(dn);
+	BAIL_ON_PTR_ERROR(dns_domain, nt_status);
+
+	if ((dc = dc_find_domain(dns_domain)) == NULL) {
+		nt_status = NT_STATUS_TRUSTED_DOMAIN_FAILURE;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	/* Reparse the cell settings for the domain if necessary */
+
+	if (!dc->domain_cell) {
+		char *base_dn;
+
+		base_dn = ads_build_dn(dc->dns_name);
+		BAIL_ON_PTR_ERROR(base_dn, nt_status);
+
+		nt_status = cell_connect_dn(&dc->domain_cell, base_dn);
+		SAFE_FREE(base_dn);
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+		nt_status = cell_lookup_settings(dc->domain_cell);
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+		/* By definition this is already part of a larger
+		   forest-wide search scope */
+
+		cell_set_flags(dc->domain_cell, LWCELL_FLAG_SEARCH_FOREST);
+	}
+
+	/* Check whether we are operating in non-schema or RFC2307
+	   mode */
+
+	if (cell_flags(dc->domain_cell) & LWCELL_FLAG_USE_RFC2307_ATTRS) {
+		nt_status = dc_do_search(dc, dn, LDAP_SCOPE_BASE,
+					 "(objectclass=*)", attrs, msg);
+	} else {
+		const char *sid_str = NULL;
+		char *filter = NULL;
+
+		sid_str = sid_string_talloc(frame, sid);
+		BAIL_ON_PTR_ERROR(sid_str, nt_status);
+
+		filter = talloc_asprintf(frame, "(keywords=backLink=%s)",
+					 sid_str);
+		BAIL_ON_PTR_ERROR(filter, nt_status);
+
+		base = cell_search_base(dc->domain_cell);
+		BAIL_ON_PTR_ERROR(base, nt_status);
+
+		nt_status = dc_do_search(dc, base, LDAP_SCOPE_SUBTREE,
+					 filter, attrs, msg);
+	}
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	*cell = dc->domain_cell;
+
+done:
+	talloc_destroy(CONST_DISCARD(char*, base));
+	talloc_destroy(frame);
+
+	return nt_status;
+}
diff --git a/source3/winbindd/idmap_adex/gc_util.c b/source3/winbindd/idmap_adex/gc_util.c
new file mode 100644
index 0000000000..87dd3c058d
--- /dev/null
+++ b/source3/winbindd/idmap_adex/gc_util.c
@@ -0,0 +1,848 @@
+/*
+ * idmap_adex: Global Catalog search interface
+ *
+ * Copyright (C) Gerald (Jerry) Carter 2007-2008
+ *
+ * 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"
+#include "idmap_adex.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_IDMAP
+
+static struct gc_info *_gc_server_list = NULL;
+
+
+/**********************************************************************
+ *********************************************************************/
+
+static struct gc_info *gc_list_head(void)
+{
+	return _gc_server_list;
+}
+
+/**********************************************************************
+ Checks if either of the domains is a subdomain of the other
+ *********************************************************************/
+
+static bool is_subdomain(const char* a, const char *b)
+{
+	char *s;
+	TALLOC_CTX *frame = talloc_stackframe();
+	char *x, *y;
+	bool ret = false;
+
+	/* Trivial cases */
+
+	if (!a && !b)
+		return true;
+
+	if (!a || !b)
+		return false;
+
+	/* Normalize the case */
+
+	x = talloc_strdup(frame, a);
+	y = talloc_strdup(frame, b);
+	if (!x || !y) {
+		ret = false;
+		goto done;
+	}
+
+	strupper_m(x);
+	strupper_m(y);
+
+	/* Exact match */
+
+	if (strcmp(x, y) == 0) {
+		ret = true;
+		goto done;
+	}
+
+	/* Check for trailing substrings */
+
+	s = strstr_m(x, y);
+	if (s && (strlen(s) == strlen(y))) {
+		ret = true;
+		goto done;
+	}
+
+	s = strstr_m(y, x);
+	if (s && (strlen(s) == strlen(x))) {
+		ret = true;
+		goto done;
+	}
+
+done:
+	talloc_destroy(frame);
+
+	return ret;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+ NTSTATUS gc_find_forest_root(struct gc_info *gc, const char *domain)
+{
+	ADS_STRUCT *ads = NULL;
+	ADS_STATUS ads_status;
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	struct nbt_cldap_netlogon_5 cldap_reply;
+	TALLOC_CTX *frame = talloc_stackframe();
+
+	if (!gc || !domain) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	ZERO_STRUCT(cldap_reply);
+
+	ads = ads_init(domain, NULL, NULL);
+	BAIL_ON_PTR_ERROR(ads, nt_status);
+
+	ads->auth.flags = ADS_AUTH_NO_BIND;
+	ads_status = ads_connect(ads);
+	if (!ADS_ERR_OK(ads_status)) {
+		DEBUG(4, ("find_forest_root: ads_connect(%s) failed! (%s)\n",
+			  domain, ads_errstr(ads_status)));
+	}
+	nt_status = ads_ntstatus(ads_status);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	if (!ads_cldap_netlogon_5(frame,
+				  ads->config.ldap_server_name,
+				  ads->config.realm,
+				  &cldap_reply))
+	{
+		DEBUG(4,("find_forest_root: Failed to get a CLDAP reply from %s!\n",
+			 ads->server.ldap_server));
+		nt_status = NT_STATUS_IO_TIMEOUT;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	gc->forest_name = talloc_strdup(gc, cldap_reply.forest);
+	BAIL_ON_PTR_ERROR(gc->forest_name, nt_status);
+
+done:
+	if (ads) {
+		ads_destroy(&ads);
+	}
+
+	return nt_status;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+static NTSTATUS gc_add_forest(const char *domain)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	struct gc_info *gc = NULL;
+	struct gc_info *find_gc = NULL;
+	char *dn;
+	ADS_STRUCT *ads = NULL;
+	struct likewise_cell *primary_cell = NULL;
+
+	primary_cell = cell_list_head();
+	if (!primary_cell) {
+		nt_status = NT_STATUS_INVALID_SERVER_STATE;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	/* Check for duplicates based on domain name first as this
+           requires no connection */
+
+	find_gc = gc_list_head();
+	while (find_gc) {
+		if (strequal (find_gc->forest_name, domain))
+			break;
+		find_gc = find_gc->next;
+	}
+
+	if (find_gc) {
+		DEBUG(10,("gc_add_forest: %s already in list\n", find_gc->forest_name));
+		return NT_STATUS_OK;
+	}
+
+	if ((gc = TALLOC_ZERO_P(NULL, struct gc_info)) == NULL) {
+		nt_status = NT_STATUS_NO_MEMORY;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	/* Query the rootDSE for the forest root naming conect first.
+           Check that the a GC server for the forest has not already
+	   been added */
+
+	nt_status = gc_find_forest_root(gc, domain);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	find_gc = gc_list_head();
+	while (find_gc) {
+		if (strequal (find_gc->forest_name, gc->forest_name))
+			break;
+		find_gc = find_gc->next;
+	}
+
+	if (find_gc) {
+		DEBUG(10,("gc_add_forest: Forest %s already in list\n",
+			  find_gc->forest_name));
+		return NT_STATUS_OK;
+	}
+
+	/* Not found, so add it here.  Make sure we connect to
+	   a DC in _this_ domain and not the forest root. */
+
+	dn = ads_build_dn(gc->forest_name);
+	BAIL_ON_PTR_ERROR(dn, nt_status);
+
+	gc->search_base = talloc_strdup(gc, dn);
+	SAFE_FREE(dn);
+	BAIL_ON_PTR_ERROR(gc->search_base, nt_status);
+
+#if 0
+	/* Can't use cell_connect_dn() here as there is no way to
+	   specifiy the LWCELL_FLAG_GC_CELL flag setting for cell_connect() */
+
+	nt_status = cell_connect_dn(&gc->forest_cell, gc->search_base);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+#else
+
+	gc->forest_cell = cell_new();
+	BAIL_ON_PTR_ERROR(gc->forest_cell, nt_status);
+
+	/* Set the DNS domain, dn, etc ... and add it to the list */
+
+	cell_set_dns_domain(gc->forest_cell, gc->forest_name);
+	cell_set_dn(gc->forest_cell, gc->search_base);
+	cell_set_flags(gc->forest_cell, LWCELL_FLAG_GC_CELL);
+#endif
+
+	/* It is possible to belong to a non-forest cell and a
+	   non-provisioned forest (at our domain levele). In that
+	   case, we should just inherit the flags from our primary
+	   cell since the GC searches will match our own schema
+	   model. */
+
+	if (strequal(primary_cell->forest_name, gc->forest_name)
+	    || is_subdomain(primary_cell->dns_domain, gc->forest_name))
+	{
+		cell_set_flags(gc->forest_cell, cell_flags(primary_cell));
+	} else {
+		/* outside of our domain */
+
+		nt_status = cell_connect(gc->forest_cell);
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+		nt_status = cell_lookup_settings(gc->forest_cell);
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+		/* Drop the connection now that we have the settings */
+
+		ads = cell_connection(gc->forest_cell);
+		ads_destroy(&ads);
+		cell_set_connection(gc->forest_cell, NULL);
+	}
+
+	DLIST_ADD_END(_gc_server_list, gc, struct gc_info*);
+
+	DEBUG(10,("gc_add_forest: Added %s to Global Catalog list of servers\n",
+		  gc->forest_name));
+
+	nt_status = NT_STATUS_OK;
+
+done:
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		talloc_destroy(gc);
+		DEBUG(3,("LWI: Failed to add new GC connection for %s (%s)\n",
+			 domain, nt_errstr(nt_status)));
+	}
+
+	return nt_status;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+static void gc_server_list_destroy(void)
+{
+	struct gc_info *gc = gc_list_head();
+
+	while (gc) {
+		struct gc_info *p = gc->next;
+
+		cell_destroy(gc->forest_cell);
+		talloc_destroy(gc);
+
+		gc = p;
+	}
+
+	_gc_server_list = NULL;
+
+	return;
+}
+
+/**********************************************************************
+ Setup the initial list of forests and initial the forest cell
+ settings for each.  FIXME!!!
+ *********************************************************************/
+
+ NTSTATUS gc_init_list(void)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	struct winbindd_tdc_domain *domains = NULL;
+	size_t num_domains = 0;
+	int i;
+
+	if (_gc_server_list != NULL) {
+		gc_server_list_destroy();
+	}
+
+	if (!wcache_tdc_fetch_list(&domains, &num_domains)) {
+		nt_status = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	/* Find our forest first.  Have to try all domains here starting
+	   with our own.  gc_add_forest() filters duplicates */
+
+	nt_status = gc_add_forest(lp_realm());
+	WARN_ON_NTSTATUS_ERROR(nt_status);
+
+	for (i=0; i<num_domains; i++) {
+		uint32_t flags = (NETR_TRUST_FLAG_IN_FOREST);
+
+		/* I think we should be able to break out of loop once
+		   we add a GC for our forest and not have to test every one.
+		   In fact, this entire loop is probably irrelevant since
+		   the GC location code should always find a GC given lp_realm().
+		   Will have to spend time testing before making the change.
+		   --jerry */
+
+		if ((domains[i].trust_flags & flags) == flags) {
+			nt_status = gc_add_forest(domains[i].dns_name);
+			WARN_ON_NTSTATUS_ERROR(nt_status);
+			/* Don't BAIL here since not every domain may
+			   have a GC server */
+		}
+	}
+
+	/* Now add trusted forests.  gc_add_forest() will filter out
+	   duplicates. Check everything with an incoming trust path
+	   that is not in our own forest.  */
+
+	for (i=0; i<num_domains; i++) {
+		uint32_t flags = domains[i].trust_flags;
+		uint32_t attribs = domains[i].trust_attribs;
+
+		/* Skip non_AD domains */
+
+		if (strlen(domains[i].dns_name) == 0) {
+			continue;
+		}
+
+		/* Only add a GC for a forest outside of our own.
+		   Ignore QUARANTINED/EXTERNAL trusts */
+
+		if ((flags & NETR_TRUST_FLAG_INBOUND)
+		    && !(flags & NETR_TRUST_FLAG_IN_FOREST)
+		    && (attribs & NETR_TRUST_ATTRIBUTE_FOREST_TRANSITIVE))
+		{
+			nt_status = gc_add_forest(domains[i].dns_name);
+			WARN_ON_NTSTATUS_ERROR(nt_status);
+		}
+	}
+
+	nt_status = NT_STATUS_OK;
+
+done:
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		DEBUG(2,("LWI: Failed to initialized GC list (%s)\n",
+			 nt_errstr(nt_status)));
+	}
+
+	TALLOC_FREE(domains);
+
+	return nt_status;
+}
+
+
+/**********************************************************************
+ *********************************************************************/
+
+ struct gc_info *gc_search_start(void)
+{
+	NTSTATUS nt_status = NT_STATUS_OK;
+	struct gc_info *gc = gc_list_head();
+
+	if (!gc) {
+		nt_status = gc_init_list();
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+		gc = gc_list_head();
+	}
+
+done:
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		DEBUG(2,("LWI: Failed to initialize GC list (%s)\n",
+			 nt_errstr(nt_status)));
+	}
+
+	return gc;
+}
+
+/**********************************************************************
+ Search Global Catalog.  Always search our own forest.  The flags set
+ controls whether or not we search cross forest.  Assume that the
+ resulting set is always returned from one GC so that we don't have to
+ both combining the LDAPMessage * results
+ *********************************************************************/
+
+ NTSTATUS gc_search_forest(struct gc_info *gc,
+			   LDAPMessage **msg,
+			   const char *filter)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	ADS_STATUS ads_status = ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
+	const char *attrs[] = {"*", NULL};
+	LDAPMessage *m = NULL;
+
+	if (!gc || !msg || !filter) {
+		nt_status = NT_STATUS_INVALID_PARAMETER;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	/* When you have multiple domain trees in a forest, the
+	   GC will search all naming contexts when you send it
+	   and empty ("") base search suffix.   Tested against
+	   Windows 2003.  */
+
+	ads_status = cell_do_search(gc->forest_cell, "",
+				   LDAP_SCOPE_SUBTREE, filter, attrs, &m);
+	nt_status = ads_ntstatus(ads_status);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	*msg = m;
+
+done:
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		DEBUG(2,("LWI: Forest wide search %s failed (%s)\n",
+			 filter, nt_errstr(nt_status)));
+	}
+
+	return nt_status;
+}
+
+/**********************************************************************
+ Search all forests via GC and return the results in an array of
+ ADS_STRUCT/LDAPMessage pairs.
+ *********************************************************************/
+
+ NTSTATUS gc_search_all_forests(const char *filter,
+				ADS_STRUCT ***ads_list,
+				LDAPMessage ***msg_list,
+				int *num_resp, uint32_t flags)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	struct gc_info *gc = NULL;
+	uint32_t test_flags = ADEX_GC_SEARCH_CHECK_UNIQUE;
+
+	*ads_list = NULL;
+	*msg_list = NULL;
+	*num_resp = 0;
+
+	if ((gc = gc_search_start()) == NULL) {
+		nt_status = NT_STATUS_INVALID_DOMAIN_STATE;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	while (gc) {
+		LDAPMessage *m = NULL;
+
+		nt_status = gc_search_forest(gc, &m, filter);
+		if (!NT_STATUS_IS_OK(nt_status)) {
+			gc = gc->next;
+			continue;
+		}
+
+		nt_status = add_ads_result_to_array(cell_connection(gc->forest_cell),
+						    m, ads_list, msg_list,
+						    num_resp);
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+		/* If there can only be one match, then we are done */
+
+		if ((*num_resp > 0) && ((flags & test_flags) == test_flags)) {
+			break;
+		}
+
+		gc = gc->next;
+	}
+
+	if (*num_resp == 0) {
+		nt_status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	nt_status = NT_STATUS_OK;
+
+done:
+	return nt_status;
+}
+
+/**********************************************************************
+ Search all forests via GC and return the results in an array of
+ ADS_STRUCT/LDAPMessage pairs.
+ *********************************************************************/
+
+ NTSTATUS gc_search_all_forests_unique(const char *filter,
+				       ADS_STRUCT **ads,
+				       LDAPMessage **msg)
+{
+	ADS_STRUCT **ads_list = NULL;
+	LDAPMessage **msg_list = NULL;
+	int num_resp;
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+
+	nt_status = gc_search_all_forests(filter, &ads_list,
+					  &msg_list, &num_resp,
+					  ADEX_GC_SEARCH_CHECK_UNIQUE);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	nt_status = check_result_unique(ads_list[0], msg_list[0]);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	*ads = ads_list[0];
+	*msg = msg_list[0];
+
+done:
+	/* Be care that we don't free the msg result being returned */
+
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		free_result_array(ads_list, msg_list, num_resp);
+	} else {
+		talloc_destroy(ads_list);
+		talloc_destroy(msg_list);
+	}
+
+	return nt_status;
+}
+
+/*********************************************************************
+ ********************************************************************/
+
+ NTSTATUS gc_name_to_sid(const char *domain,
+			 const char *name,
+			 DOM_SID *sid,
+			 enum lsa_SidType *sid_type)
+{
+	TALLOC_CTX *frame = talloc_stackframe();
+	char *p, *name_user;
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	char *name_filter;
+	ADS_STRUCT *ads = NULL;
+	LDAPMessage *msg = NULL;
+	LDAPMessage *e = NULL;
+	char *dn = NULL;
+	char *dns_domain = NULL;
+	ADS_STRUCT **ads_list = NULL;
+	LDAPMessage **msg_list = NULL;
+	int num_resp = 0;
+	int i;
+
+	/* Strip the "DOMAIN\" prefix if necessary and search for
+	   a matching sAMAccountName in the forest */
+
+	if ((p = strchr_m( name, '\\' )) == NULL)
+		name_user = talloc_strdup( frame, name );
+	else
+		name_user = talloc_strdup( frame, p+1 );
+	BAIL_ON_PTR_ERROR(name_user, nt_status);
+
+	name_filter = talloc_asprintf(frame, "(sAMAccountName=%s)", name_user);
+	BAIL_ON_PTR_ERROR(name_filter, nt_status);
+
+	nt_status = gc_search_all_forests(name_filter, &ads_list,
+					  &msg_list, &num_resp, 0);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	/* Assume failure until we know otherwise*/
+
+	nt_status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
+
+	/* Match the domain name from the DN */
+
+	for (i=0; i<num_resp; i++) {
+		ads = ads_list[i];
+		msg = msg_list[i];
+
+		e = ads_first_entry(ads, msg);
+		while (e) {
+			struct winbindd_tdc_domain *domain_rec;
+
+			dn = ads_get_dn(ads, e);
+			BAIL_ON_PTR_ERROR(dn, nt_status);
+
+			dns_domain = cell_dn_to_dns(dn);
+			SAFE_FREE(dn);
+			BAIL_ON_PTR_ERROR(dns_domain, nt_status);
+
+			domain_rec = wcache_tdc_fetch_domain(frame, dns_domain);
+			SAFE_FREE(dns_domain);
+
+			/* Ignore failures and continue the search */
+
+			if (!domain_rec) {
+				e = ads_next_entry(ads, e);
+				continue;
+			}
+
+			/* Check for a match on the domain name */
+
+			if (strequal(domain, domain_rec->domain_name)) {
+				if (!ads_pull_sid(ads, e, "objectSid", sid)) {
+					nt_status = NT_STATUS_INVALID_SID;
+					BAIL_ON_NTSTATUS_ERROR(nt_status);
+				}
+
+				talloc_destroy(domain_rec);
+
+				nt_status = get_sid_type(ads, msg, sid_type);
+				BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+				/* We're done! */
+				nt_status = NT_STATUS_OK;
+				break;
+			}
+
+			/* once more around thew merry-go-round */
+
+			talloc_destroy(domain_rec);
+			e = ads_next_entry(ads, e);
+		}
+	}
+
+done:
+	free_result_array(ads_list, msg_list, num_resp);
+	talloc_destroy(frame);
+
+	return nt_status;
+}
+
+/********************************************************************
+ Pull an attribute string value
+ *******************************************************************/
+
+static NTSTATUS get_object_account_name(ADS_STRUCT *ads,
+					LDAPMessage *msg,
+					char **name)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	char *sam_name = NULL;
+	struct winbindd_tdc_domain *domain_rec = NULL;
+	char *dns_domain = NULL;
+	char *dn = NULL;
+	TALLOC_CTX *frame = talloc_stackframe();
+	int len;
+
+	/* Check parameters */
+
+	if (!ads || !msg || !name) {
+		nt_status = NT_STATUS_INVALID_PARAMETER;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	/* get the name and domain */
+
+	dn = ads_get_dn(ads, msg);
+	BAIL_ON_PTR_ERROR(dn, nt_status);
+
+	DEBUG(10,("get_object_account_name: dn = \"%s\"\n", dn));
+
+	dns_domain = cell_dn_to_dns(dn);
+	SAFE_FREE(dn);
+	BAIL_ON_PTR_ERROR(dns_domain, nt_status);
+
+	domain_rec = wcache_tdc_fetch_domain(frame, dns_domain);
+	SAFE_FREE(dns_domain);
+
+	if (!domain_rec) {
+		nt_status = NT_STATUS_TRUSTED_DOMAIN_FAILURE;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	sam_name = ads_pull_string(ads, frame, msg, "sAMAccountName");
+	BAIL_ON_PTR_ERROR(sam_name, nt_status);
+
+	len = asprintf(name, "%s\\%s", domain_rec->domain_name, sam_name);
+	if (len == -1) {
+		*name = NULL;
+		BAIL_ON_PTR_ERROR((*name), nt_status);
+	}
+
+	nt_status = NT_STATUS_OK;
+
+done:
+	talloc_destroy(frame);
+
+	return nt_status;
+}
+
+/*********************************************************************
+ ********************************************************************/
+
+ NTSTATUS gc_sid_to_name(const DOM_SID *sid,
+			 char **name,
+			 enum lsa_SidType *sid_type)
+{
+	TALLOC_CTX *frame = talloc_stackframe();
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	char *filter;
+	ADS_STRUCT *ads = NULL;
+	LDAPMessage *msg = NULL;
+	char *sid_string;
+
+	*name = NULL;
+
+	sid_string = sid_binstring(sid);
+	BAIL_ON_PTR_ERROR(sid_string, nt_status);
+
+	filter = talloc_asprintf(frame, "(objectSid=%s)", sid_string);
+	SAFE_FREE(sid_string);
+	BAIL_ON_PTR_ERROR(filter, nt_status);
+
+	nt_status = gc_search_all_forests_unique(filter, &ads, &msg);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	nt_status = get_object_account_name(ads, msg, name);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	nt_status = get_sid_type(ads, msg, sid_type);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+done:
+	ads_msgfree(ads, msg);
+	talloc_destroy(frame);
+
+	return nt_status;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+ NTSTATUS add_ads_result_to_array(ADS_STRUCT *ads,
+				  LDAPMessage *msg,
+				  ADS_STRUCT ***ads_list,
+				  LDAPMessage ***msg_list,
+				  int *size)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	ADS_STRUCT **ads_tmp = NULL;
+	LDAPMessage **msg_tmp = NULL;
+	int count = *size;
+
+	if (!ads || !msg) {
+		nt_status = NT_STATUS_INVALID_PARAMETER;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+#if 0
+	/* Don't add a response with no entries */
+
+	if (ads_count_replies(ads, msg) == 0) {
+		return NT_STATUS_OK;
+	}
+#endif
+
+	if (count == 0) {
+		ads_tmp = TALLOC_ARRAY(NULL, ADS_STRUCT*, 1);
+		BAIL_ON_PTR_ERROR(ads_tmp, nt_status);
+
+		msg_tmp = TALLOC_ARRAY(NULL, LDAPMessage*, 1);
+		BAIL_ON_PTR_ERROR(msg_tmp, nt_status);
+	} else {
+		ads_tmp = TALLOC_REALLOC_ARRAY(*ads_list, *ads_list, ADS_STRUCT*,
+					       count+1);
+		BAIL_ON_PTR_ERROR(ads_tmp, nt_status);
+
+		msg_tmp = TALLOC_REALLOC_ARRAY(*msg_list, *msg_list, LDAPMessage*,
+					       count+1);
+		BAIL_ON_PTR_ERROR(msg_tmp, nt_status);
+	}
+
+	ads_tmp[count] = ads;
+	msg_tmp[count] = msg;
+	count++;
+
+	*ads_list = ads_tmp;
+	*msg_list = msg_tmp;
+	*size = count;
+
+	nt_status = NT_STATUS_OK;
+
+done:
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		talloc_destroy(ads_tmp);
+		talloc_destroy(msg_tmp);
+	}
+
+	return nt_status;
+}
+
+/**********************************************************************
+ Frees search results.  Do not free the ads_list as these are
+ references back to the GC search structures.
+ *********************************************************************/
+
+ void free_result_array(ADS_STRUCT **ads_list,
+			LDAPMessage **msg_list,
+			int num_resp)
+{
+	int i;
+
+	for (i=0; i<num_resp; i++) {
+		ads_msgfree(ads_list[i], msg_list[i]);
+	}
+
+	talloc_destroy(ads_list);
+	talloc_destroy(msg_list);
+}
+
+/**********************************************************************
+ Check that we have exactly one entry from the search
+ *********************************************************************/
+
+ NTSTATUS check_result_unique(ADS_STRUCT *ads, LDAPMessage *msg)
+{
+	NTSTATUS nt_status;
+	int count;
+
+	count = ads_count_replies(ads, msg);
+
+	if (count <= 0) {
+		nt_status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	if (count > 1) {
+		nt_status = NT_STATUS_DUPLICATE_NAME;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	nt_status = NT_STATUS_OK;
+
+done:
+	return nt_status;
+}
diff --git a/source3/winbindd/idmap_adex/idmap_adex.c b/source3/winbindd/idmap_adex/idmap_adex.c
new file mode 100644
index 0000000000..23ab843e95
--- /dev/null
+++ b/source3/winbindd/idmap_adex/idmap_adex.c
@@ -0,0 +1,460 @@
+/*
+ * idmap_adex: Support for D Forests
+ *
+ * Copyright (C) Gerald (Jerry) Carter 2006-2008
+ *
+ * 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"
+#include "idmap_adex.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_IDMAP
+
+#define WINBIND_CCACHE_NAME "MEMORY:winbind_ccache"
+
+NTSTATUS init_module(void);
+
+/*
+ * IdMap backend
+ */
+
+/********************************************************************
+ Basic init function responsible for determining our current mode
+ (standalone or using Centeris Cells).  This must return success or
+ it will be dropped from the idmap backend list.
+ *******************************************************************/
+
+static NTSTATUS _idmap_adex_init(struct idmap_domain *dom,
+				     const char *params)
+{
+	ADS_STRUCT *ads = NULL;
+	ADS_STATUS status;
+	static NTSTATUS init_status = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
+	DOM_SID domain_sid;
+	fstring dcname;
+	struct sockaddr_storage ip;
+	struct likewise_cell *lwcell;
+
+	if (NT_STATUS_IS_OK(init_status))
+		return NT_STATUS_OK;
+
+	/* Silently fail if we are not a member server in security = ads */
+
+	if ((lp_server_role() != ROLE_DOMAIN_MEMBER) ||
+	    (lp_security() != SEC_ADS)) {
+		init_status = NT_STATUS_INVALID_SERVER_STATE;
+		BAIL_ON_NTSTATUS_ERROR(init_status);
+	}
+
+	/* fetch our domain SID first */
+
+	if (!secrets_fetch_domain_sid(lp_workgroup(), &domain_sid)) {
+		init_status = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+		BAIL_ON_NTSTATUS_ERROR(init_status);
+	}
+
+	/* reuse the same ticket cache as winbindd */
+
+	setenv("KRB5CCNAME", WINBIND_CCACHE_NAME, 1);
+
+	/* Establish a connection to a DC */
+
+	if ((ads = ads_init(lp_realm(), lp_workgroup(), NULL)) == NULL) {
+		init_status = NT_STATUS_NO_MEMORY;
+		BAIL_ON_NTSTATUS_ERROR(init_status);
+	}
+
+	ads->auth.password =
+	    secrets_fetch_machine_password(lp_workgroup(), NULL, NULL);
+	ads->auth.realm = SMB_STRDUP(lp_realm());
+
+	/* get the DC name here to setup the server affinity cache and
+	   local krb5.conf */
+
+	get_dc_name(lp_workgroup(), lp_realm(), dcname, &ip);
+
+	status = ads_connect(ads);
+	if (!ADS_ERR_OK(status)) {
+		DEBUG(0, ("_idmap_adex_init: ads_connect() failed! (%s)\n",
+			  ads_errstr(status)));
+	}
+	init_status = ads_ntstatus(status);
+	BAIL_ON_NTSTATUS_ERROR(init_status);
+
+
+	/* Find out cell membership */
+
+	init_status = cell_locate_membership(ads);
+	if (!NT_STATUS_IS_OK(init_status)) {
+		DEBUG(0,("LWI: Fail to locate cell membership (%s).",
+			 nt_errstr(init_status)));
+		goto done;
+	}
+
+	/* Fill in the cell information */
+
+	lwcell = cell_list_head();
+
+	init_status = cell_lookup_settings(lwcell);
+	BAIL_ON_NTSTATUS_ERROR(init_status);
+
+	/* Miscellaneous setup.  E.g. set up the list of GC
+	   servers and domain list for our forest (does not actually
+	   connect). */
+
+	init_status = gc_init_list();
+	BAIL_ON_NTSTATUS_ERROR(init_status);
+
+	init_status = domain_init_list();
+	BAIL_ON_NTSTATUS_ERROR(init_status);
+
+done:
+	if (!NT_STATUS_IS_OK(init_status)) {
+		DEBUG(1,("Likewise initialization failed (%s)\n",
+			 nt_errstr(init_status)));
+	}
+
+	/* cleanup */
+
+	if (!NT_STATUS_IS_OK(init_status)) {
+		cell_list_destroy();
+
+		/* init_status stores the failure reason but we need to
+		   return success or else idmap_init() will drop us from the
+		   backend list */
+		return NT_STATUS_OK;
+	}
+
+	init_status = NT_STATUS_OK;
+
+	return init_status;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+static NTSTATUS _idmap_adex_get_sid_from_id(struct
+						idmap_domain
+						*dom, struct
+						id_map
+						**ids)
+{
+	int i;
+	bool one_mapped = false;
+	bool all_mapped = true;
+	NTSTATUS nt_status;
+        struct likewise_cell *cell;
+
+	nt_status = _idmap_adex_init(dom, NULL);
+	if (!NT_STATUS_IS_OK(nt_status))
+		return nt_status;
+
+	if ((cell = cell_list_head()) == NULL) {
+		return NT_STATUS_INVALID_SERVER_STATE;
+	}
+
+	/* have to work through these one by one */
+	for (i = 0; ids[i]; i++) {
+		NTSTATUS status;
+		status = cell->provider->get_sid_from_id(ids[i]->sid,
+							 ids[i]->xid.id,
+							 ids[i]->xid.type);
+		/* Fail if we cannot find any DC */
+		if (NT_STATUS_EQUAL
+		    (status, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND)) {
+			return status;
+		}
+
+		if (!NT_STATUS_IS_OK(status)) {
+			ids[i]->status = ID_UNMAPPED;
+			all_mapped = false;
+			continue;
+		}
+
+		ids[i]->status = ID_MAPPED;
+		one_mapped = true;
+	}
+
+	return NT_STATUS_OK;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+static NTSTATUS _idmap_adex_get_id_from_sid(struct
+						idmap_domain
+						*dom, struct
+						id_map
+						**ids)
+{
+	int i;
+	bool one_mapped = false;
+	bool all_mapped = true;
+	NTSTATUS nt_status;
+        struct likewise_cell *cell;
+
+	nt_status = _idmap_adex_init(dom, NULL);
+	if (!NT_STATUS_IS_OK(nt_status))
+		return nt_status;
+
+	if ((cell = cell_list_head()) == NULL) {
+		return NT_STATUS_INVALID_SERVER_STATE;
+	}
+
+	/* have to work through these one by one */
+	for (i = 0; ids[i]; i++) {
+		NTSTATUS status;
+		status = cell->provider->get_id_from_sid(&ids[i]->xid.id,
+							 &ids[i]->xid.
+							 type, ids[i]->sid);
+		/* Fail if we cannot find any DC */
+		if (NT_STATUS_EQUAL
+		    (status, NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND)) {
+			return status;
+		}
+
+		if (!NT_STATUS_IS_OK(status)) {
+			ids[i]->status = ID_UNMAPPED;
+			all_mapped = false;
+			continue;
+		}
+
+		ids[i]->status = ID_MAPPED;
+		one_mapped = true;
+	}
+
+	return NT_STATUS_OK;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+static NTSTATUS _idmap_adex_set_mapping(struct
+					    idmap_domain
+					    *dom, const struct
+					    id_map *map)
+{
+	DEBUG(0, ("_idmap_adex_set_mapping: not implemented\n"));
+	return NT_STATUS_NOT_IMPLEMENTED;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+static NTSTATUS _idmap_adex_remove_mapping(struct
+					       idmap_domain
+					       *dom, const
+					       struct
+					       id_map
+					       *map)
+{
+	DEBUG(0, ("_idmap_adex_remove_mapping: not implemented\n"));
+	return NT_STATUS_NOT_IMPLEMENTED;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+static NTSTATUS _idmap_adex_dump(struct idmap_domain
+				     *dom, struct id_map **maps, int *num_map)
+{
+	return NT_STATUS_NOT_IMPLEMENTED;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+static NTSTATUS _idmap_adex_close(struct idmap_domain
+				      *dom)
+{
+	/* FIXME!  need to do cleanup here */
+
+	return NT_STATUS_OK;
+}
+
+/*
+ * IdMap NSS plugin
+ */
+
+/**********************************************************************
+ *********************************************************************/
+
+static NTSTATUS _nss_adex_init(struct nss_domain_entry
+				  *e)
+{
+	return _idmap_adex_init(NULL, NULL);
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+static NTSTATUS _nss_adex_get_info(struct
+				      nss_domain_entry *e,
+				      const DOM_SID * sid,
+				      TALLOC_CTX * ctx,
+				      ADS_STRUCT * ads,
+				      LDAPMessage * msg,
+				      char **homedir,
+				      char **shell, char **gecos, gid_t * p_gid)
+{
+	NTSTATUS nt_status;
+        struct likewise_cell *cell;
+
+	nt_status = _idmap_adex_init(NULL, NULL);
+	if (!NT_STATUS_IS_OK(nt_status))
+		return nt_status;
+
+	if ((cell = cell_list_head()) == NULL) {
+		return NT_STATUS_INVALID_SERVER_STATE;
+	}
+
+	return cell->provider->get_nss_info(sid, ctx, homedir,
+					    shell, gecos, p_gid);
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+static NTSTATUS _nss_adex_map_to_alias(TALLOC_CTX * mem_ctx, const char
+					  *domain, const char
+					  *name, char **alias)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+        struct likewise_cell *cell = NULL;
+
+	nt_status = _idmap_adex_init(NULL, NULL);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	if ((cell = cell_list_head()) == NULL) {
+		nt_status = NT_STATUS_INVALID_SERVER_STATE;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	nt_status = cell->provider->map_to_alias(mem_ctx, domain,
+						 name, alias);
+
+	/* go ahead and allow the cache mgr to mark this in
+	   negative cache */
+
+	if (!NT_STATUS_IS_OK(nt_status))
+		nt_status = NT_STATUS_NONE_MAPPED;
+
+done:
+	return nt_status;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+static NTSTATUS _nss_adex_map_from_alias(TALLOC_CTX * mem_ctx, const char
+					    *domain, const char
+					    *alias, char **name)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+        struct likewise_cell *cell = NULL;
+
+	nt_status = _idmap_adex_init(NULL, NULL);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	if ((cell = cell_list_head()) == NULL) {
+		nt_status = NT_STATUS_INVALID_SERVER_STATE;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+
+	nt_status = cell->provider->map_from_alias(mem_ctx, domain,
+						   alias, name);
+
+	/* go ahead and allow the cache mgr to mark this in
+	   negative cache */
+
+	if (!NT_STATUS_IS_OK(nt_status))
+		nt_status = NT_STATUS_NONE_MAPPED;
+
+done:
+	return nt_status;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+static NTSTATUS _nss_adex_close(void)
+{
+	return NT_STATUS_NOT_IMPLEMENTED;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+static struct idmap_methods adex_idmap_methods = {
+
+	.init             = _idmap_adex_init,
+	.unixids_to_sids  = _idmap_adex_get_sid_from_id,
+	.sids_to_unixids  = _idmap_adex_get_id_from_sid,
+	.set_mapping      = _idmap_adex_set_mapping,
+	.remove_mapping   = _idmap_adex_remove_mapping,
+	.dump_data        = _idmap_adex_dump,
+	.close_fn         = _idmap_adex_close
+};
+static struct nss_info_methods adex_nss_methods = {
+	.init           = _nss_adex_init,
+	.get_nss_info   = _nss_adex_get_info,
+	.map_to_alias   = _nss_adex_map_to_alias,
+	.map_from_alias = _nss_adex_map_from_alias,
+	.close_fn       = _nss_adex_close
+};
+
+/**********************************************************************
+ Register with the idmap and idmap_nss subsystems. We have to protect
+ against the idmap and nss_info interfaces being in a half-registered
+ state.
+ **********************************************************************/
+NTSTATUS idmap_adex_init(void)
+{
+	static NTSTATUS idmap_status = NT_STATUS_UNSUCCESSFUL;
+	static NTSTATUS nss_status = NT_STATUS_UNSUCCESSFUL;
+	if (!NT_STATUS_IS_OK(idmap_status)) {
+		idmap_status =
+		    smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION,
+				       "adex", &adex_idmap_methods);
+		if (!NT_STATUS_IS_OK(idmap_status)) {
+			DEBUG(0,
+			      ("idmap_centeris_init: Failed to register the adex"
+			       "idmap plugin.\n"));
+			return idmap_status;
+		}
+	}
+
+	if (!NT_STATUS_IS_OK(nss_status)) {
+		nss_status =
+		    smb_register_idmap_nss(SMB_NSS_INFO_INTERFACE_VERSION,
+					   "adex", &adex_nss_methods);
+		if (!NT_STATUS_IS_OK(nss_status)) {
+			DEBUG(0,
+			      ("idmap_adex_init: Failed to register the adex"
+			       "nss plugin.\n"));
+			return nss_status;
+		}
+	}
+
+	return NT_STATUS_OK;
+}
+
+NTSTATUS nss_info_adex_init(void)
+{
+	return idmap_adex_init();
+}
diff --git a/source3/winbindd/idmap_adex/idmap_adex.h b/source3/winbindd/idmap_adex/idmap_adex.h
new file mode 100644
index 0000000000..f91bba8d07
--- /dev/null
+++ b/source3/winbindd/idmap_adex/idmap_adex.h
@@ -0,0 +1,257 @@
+/*
+ * idmap_centeris: Support for Local IDs and Centeris Cell Structure
+ *
+ * Copyright (C) Gerald (Jerry) Carter 2006-2008
+ *
+ * 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.
+ */
+
+#ifndef _IDMAP_ADEX_H
+#define _IDMAP_ADEX_H
+
+#include "winbindd/winbindd.h"
+
+#define ADEX_CELL_RDN             "$LikewiseIdentityCell"
+
+#define ADEX_OC_USER              "centerisLikewiseUser"
+#define ADEX_OC_GROUP             "centerisLikewiseGroup"
+
+#define AD_USER                 "User"
+#define AD_GROUP                "Group"
+
+#define ADEX_OC_POSIX_USER        "posixAccount"
+#define ADEX_OC_POSIX_GROUP       "posixGroup"
+
+#define ADEX_ATTR_UIDNUM          "uidNumber"
+#define ADEX_ATTR_GIDNUM          "gidNUmber"
+#define ADEX_ATTR_HOMEDIR         "unixHomeDirectory"
+#define ADEX_ATTR_USERPW          "unixUserPassword"
+#define ADEX_ATTR_GROUPALIAS      "groupAlias"	/* Not part of RFC2307 */
+#define ADEX_ATTR_SHELL           "loginShell"
+#define ADEX_ATTR_GECOS           "gecos"
+#define ADEX_ATTR_UID             "uid"
+#define ADEX_ATTR_DISPLAYNAME     "displayName"
+
+#define MIN_ID_VALUE            100
+
+#define BAIL_ON_NTSTATUS_ERROR(x)	   \
+	do {				   \
+		if (!NT_STATUS_IS_OK(x)) { \
+			DEBUG(10,("Failed! (%s)\n", nt_errstr(x)));	\
+			goto done;	   \
+		}			   \
+	}				   \
+	while (0);			   \
+
+#define WARN_ON_NTSTATUS_ERROR(x)	   \
+	do {				   \
+		if (!NT_STATUS_IS_OK(x)) { \
+			DEBUG(10,("Failure ignored! (%s)\n", nt_errstr(x)));	\
+		}			   \
+	}				   \
+	while (0);			   \
+
+#define BAIL_ON_ADS_ERROR(x)		   \
+	do {				   \
+		if (!ADS_ERR_OK(x)) {	   \
+			goto done;	   \
+		}			   \
+	}				   \
+	while (0);
+
+#define BAIL_ON_PTR_ERROR(p, x)				\
+	do {						\
+		if ((p) == NULL ) {			\
+			DEBUG(10,("NULL pointer!\n"));	\
+			x = NT_STATUS_NO_MEMORY;	\
+			goto done;			\
+		}					\
+	} while (0);
+
+#define PRINT_NTSTATUS_ERROR(x, hdr, level)				\
+	do {								\
+		if (!NT_STATUS_IS_OK(x)) {				\
+			DEBUG(level,("LWI ("hdr"): %s\n", nt_errstr(x))); \
+		}							\
+	} while(0);
+/*
+ * Cell Provider API
+ */
+
+struct cell_provider_api {
+	NTSTATUS(*get_sid_from_id) (DOM_SID * sid,
+				    uint32_t id, enum id_type type);
+	NTSTATUS(*get_id_from_sid) (uint32_t * id,
+				    enum id_type * type, const DOM_SID * sid);
+	NTSTATUS(*get_nss_info) (const DOM_SID * sid,
+				 TALLOC_CTX * ctx,
+				 char **homedir,
+				 char **shell, char **gecos, gid_t * p_gid);
+	NTSTATUS(*map_to_alias) (TALLOC_CTX * mem_ctx,
+				 const char *domain,
+				 const char *name, char **alias);
+	NTSTATUS(*map_from_alias) (TALLOC_CTX * mem_ctx,
+				   const char *domain,
+				   const char *alias, char **name);
+};
+
+/* registered providers */
+
+extern struct cell_provider_api ccp_unified;
+extern struct cell_provider_api ccp_local;
+
+#define LWCELL_FLAG_USE_RFC2307_ATTRS     0x00000001
+#define LWCELL_FLAG_SEARCH_FOREST         0x00000002
+#define LWCELL_FLAG_GC_CELL               0x00000004
+#define LWCELL_FLAG_LOCAL_MODE            0x00000008
+
+struct likewise_cell {
+	struct likewise_cell *prev, *next;
+	ADS_STRUCT *conn;
+	struct likewise_cell *gc_search_cell;
+	DOM_SID domain_sid;
+	char *dns_domain;
+	char *forest_name;
+	char *dn;
+	struct GUID *links;        /* only held by owning cell */
+	size_t num_links;
+	uint32_t flags;
+	struct cell_provider_api *provider;
+};
+
+/* Search flags used for Global Catalog API */
+
+#define ADEX_GC_SEARCH_CHECK_UNIQUE        0x00000001
+
+struct gc_info {
+	struct gc_info *prev, *next;
+	char *forest_name;
+	char *search_base;
+	struct likewise_cell *forest_cell;
+};
+
+/* Available functions outside of idmap_lwidentity.c */
+
+/* cell_util.c */
+
+char *find_attr_string(char **list, size_t num_lines, const char *substr);
+bool is_object_class(char **list, size_t num_lines, const char *substr);
+int min_id_value(void);
+char *cell_dn_to_dns(const char *dn);
+NTSTATUS get_sid_type(ADS_STRUCT *ads,
+		      LDAPMessage *msg,
+		      enum lsa_SidType *type);
+
+NTSTATUS cell_locate_membership(ADS_STRUCT * ads);
+NTSTATUS cell_lookup_settings(struct likewise_cell * cell);
+NTSTATUS cell_follow_links(struct likewise_cell *cell);
+NTSTATUS cell_set_local_provider(void);
+
+/* likewise_cell.c */
+
+struct likewise_cell *cell_new(void);
+struct likewise_cell *cell_list_head(void);
+
+bool cell_list_add(struct likewise_cell *cell);
+bool cell_list_remove(struct likewise_cell * cell);
+
+void cell_list_destroy();
+void cell_destroy(struct likewise_cell *c);
+void cell_set_forest_searches(struct likewise_cell *c,
+				bool search);
+void cell_set_dns_domain(struct likewise_cell *c,
+			   const char *dns_domain);
+void cell_set_connection(struct likewise_cell *c,
+			   ADS_STRUCT *ads);
+void cell_set_dn(struct likewise_cell *c,
+		   const char *dn);
+void cell_set_domain_sid(struct likewise_cell *c,
+			   DOM_SID *sid);
+void cell_set_flags(struct likewise_cell *c, uint32_t flags);
+void cell_clear_flags(struct likewise_cell *c, uint32_t flags);
+
+const char* cell_search_base(struct likewise_cell *c);
+const char *cell_dns_domain(struct likewise_cell *c);
+ADS_STRUCT *cell_connection(struct likewise_cell *c);
+bool cell_search_forest(struct likewise_cell *c);
+ADS_STATUS cell_do_search(struct likewise_cell *c,
+			  const char *search_base,
+			  int scope,
+			  const char *expr,
+			  const char **attrs,
+			  LDAPMessage ** msg);
+uint32_t cell_flags(struct likewise_cell *c);
+
+NTSTATUS cell_connect_dn(struct likewise_cell **c,
+			 const char *dn);
+NTSTATUS cell_connect(struct likewise_cell *c);
+
+
+/* gc_util.c */
+
+NTSTATUS gc_init_list(void);
+
+NTSTATUS gc_find_forest_root(struct gc_info *gc,
+			     const char *domain);
+
+struct gc_info *gc_search_start(void);
+
+NTSTATUS gc_search_forest(struct gc_info *gc,
+			  LDAPMessage **msg,
+			  const char *filter);
+
+NTSTATUS gc_search_all_forests(const char *filter,
+			       ADS_STRUCT ***ads_list,
+			       LDAPMessage ***msg_list,
+			       int *num_resp, uint32_t flags);
+
+NTSTATUS gc_search_all_forests_unique(const char *filter,
+				      ADS_STRUCT **ads,
+				      LDAPMessage **msg);
+
+NTSTATUS gc_name_to_sid(const char *domain,
+			const char *name,
+			DOM_SID *sid,
+			enum lsa_SidType *sid_type);
+
+NTSTATUS gc_sid_to_name(const DOM_SID *sid,
+			char **name,
+			enum lsa_SidType *sid_type);
+
+NTSTATUS add_ads_result_to_array(ADS_STRUCT *ads,
+				 LDAPMessage *msg,
+				 ADS_STRUCT ***ads_list,
+				 LDAPMessage ***msg_list,
+				 int *size);
+
+void free_result_array(ADS_STRUCT **ads_list,
+		       LDAPMessage **msg_list,
+		       int num_resp);
+
+NTSTATUS check_result_unique(ADS_STRUCT *ads,
+			     LDAPMessage *msg);
+
+
+/* domain_util.c */
+
+NTSTATUS domain_init_list(void);
+
+NTSTATUS dc_search_domains(struct likewise_cell **cell,
+			   LDAPMessage **msg,
+			   const char *dn,
+			   const DOM_SID *user_sid);
+
+
+#endif	/* _IDMAP_ADEX_H */
diff --git a/source3/winbindd/idmap_adex/likewise_cell.c b/source3/winbindd/idmap_adex/likewise_cell.c
new file mode 100644
index 0000000000..77eeee406b
--- /dev/null
+++ b/source3/winbindd/idmap_adex/likewise_cell.c
@@ -0,0 +1,425 @@
+/*
+ * idmap_adex: Support for AD Forests
+ *
+ * Copyright (C) Gerald (Jerry) Carter 2006-2008
+ *
+ * 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"
+#include "idmap_adex.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_IDMAP
+
+static struct likewise_cell *_lw_cell_list = NULL;
+
+/**********************************************************************
+ Return the current HEAD of the list
+ *********************************************************************/
+
+ struct likewise_cell *cell_list_head(void)
+{
+	return _lw_cell_list;
+}
+
+
+/**********************************************************************
+ *********************************************************************/
+
+ void cell_destroy(struct likewise_cell *c)
+{
+	if (!c)
+		return;
+
+	if (c->conn)
+		ads_destroy(&c->conn);
+
+	talloc_destroy(c);
+}
+
+/**********************************************************************
+ Free all cell entries and reset the list head to NULL
+ *********************************************************************/
+
+ void cell_list_destroy(void)
+{
+	struct likewise_cell *p = _lw_cell_list;
+
+	while (p) {
+		struct likewise_cell *q = p->next;
+
+		cell_destroy(p);
+
+		p = q;
+	}
+
+	_lw_cell_list = NULL;
+
+	return;
+}
+
+/**********************************************************************
+ Add a new cell structure to the list
+ *********************************************************************/
+
+ struct likewise_cell* cell_new(void)
+{
+	struct likewise_cell *c;
+
+	/* Each cell struct is a TALLOC_CTX* */
+
+	c = TALLOC_ZERO_P(NULL, struct likewise_cell);
+	if (!c) {
+		DEBUG(0,("cell_new: memory allocation failure!\n"));
+		return NULL;
+	}
+
+	return c;
+}
+
+/**********************************************************************
+ Add a new cell structure to the list
+ *********************************************************************/
+
+ bool cell_list_add(struct likewise_cell * cell)
+{
+	if (!cell) {
+		return false;
+	}
+
+	/* Always add to the end */
+
+	DLIST_ADD_END(_lw_cell_list, cell, struct likewise_cell *);
+
+	return true;
+}
+
+/**********************************************************************
+ Add a new cell structure to the list
+ *********************************************************************/
+
+ bool cell_list_remove(struct likewise_cell * cell)
+{
+	if (!cell) {
+		return false;
+	}
+
+	/* Remove and drop the cell structure */
+
+	DLIST_REMOVE(_lw_cell_list, cell);
+	talloc_destroy(cell);
+
+	return true;
+}
+
+/**********************************************************************
+ Set the containing DNS domain for a cell
+ *********************************************************************/
+
+ void cell_set_dns_domain(struct likewise_cell *c, const char *dns_domain)
+{
+	c->dns_domain = talloc_strdup(c, dns_domain);
+}
+
+/**********************************************************************
+ Set ADS connection for a cell
+ *********************************************************************/
+
+ void cell_set_connection(struct likewise_cell *c, ADS_STRUCT *ads)
+{
+	c->conn = ads;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+ void cell_set_flags(struct likewise_cell *c, uint32_t flags)
+{
+	c->flags |= flags;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+ void cell_clear_flags(struct likewise_cell *c, uint32_t flags)
+{
+	c->flags &= ~flags;
+}
+
+/**********************************************************************
+ Set the Cell's DN
+ *********************************************************************/
+
+ void cell_set_dn(struct likewise_cell *c, const char *dn)
+{
+	if ( c->dn) {
+		talloc_free(c->dn);
+		c->dn = NULL;
+	}
+
+	c->dn = talloc_strdup(c, dn);
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+ void cell_set_domain_sid(struct likewise_cell *c, DOM_SID *sid)
+{
+	sid_copy(&c->domain_sid, sid);
+}
+
+/*
+ * Query Routines
+ */
+
+/**********************************************************************
+ *********************************************************************/
+
+ const char* cell_search_base(struct likewise_cell *c)
+{
+	if (!c)
+		return NULL;
+
+	return talloc_asprintf(c, "cn=%s,%s", ADEX_CELL_RDN, c->dn);
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+ bool cell_search_forest(struct likewise_cell *c)
+{
+	uint32_t test_flags = LWCELL_FLAG_SEARCH_FOREST;
+
+	return ((c->flags & test_flags) == test_flags);
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+ uint32_t cell_flags(struct likewise_cell *c)
+{
+	if (!c)
+		return 0;
+
+	return c->flags;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+ const char *cell_dns_domain(struct likewise_cell *c)
+{
+	if (!c)
+		return NULL;
+
+	return c->dns_domain;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+ ADS_STRUCT *cell_connection(struct likewise_cell *c)
+{
+	if (!c)
+		return NULL;
+
+	return c->conn;
+}
+
+/*
+ * Connection functions
+ */
+
+/********************************************************************
+ *******************************************************************/
+
+ NTSTATUS cell_connect(struct likewise_cell *c)
+{
+	ADS_STRUCT *ads = NULL;
+	ADS_STATUS ads_status;
+	fstring dc_name;
+	struct sockaddr_storage dcip;
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+
+	/* have to at least have the AD domain name */
+
+	if (!c->dns_domain) {
+		nt_status = NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	/* clear out any old information */
+
+	if (c->conn) {
+		ads_destroy(&c->conn);
+		c->conn = NULL;
+	}
+
+	/* now setup the new connection */
+
+	ads = ads_init(c->dns_domain, NULL, NULL);
+	BAIL_ON_PTR_ERROR(ads, nt_status);
+
+	ads->auth.password =
+	    secrets_fetch_machine_password(lp_workgroup(), NULL, NULL);
+	ads->auth.realm = SMB_STRDUP(lp_realm());
+
+	/* Make the connection.  We should already have an initial
+	   TGT using the machine creds */
+
+	if (cell_flags(c) & LWCELL_FLAG_GC_CELL) {
+		ads_status = ads_connect_gc(ads);
+	} else {
+	  /* Set up server affinity for normal cells and the client
+	     site name cache */
+
+	  if (!get_dc_name("", c->dns_domain, dc_name, &dcip)) {
+	    nt_status = NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
+	    BAIL_ON_NTSTATUS_ERROR(nt_status);
+	  }
+
+	  ads_status = ads_connect(ads);
+	}
+
+
+	c->conn = ads;
+
+	nt_status = ads_ntstatus(ads_status);
+
+done:
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		ads_destroy(&ads);
+		c->conn = NULL;
+	}
+
+	return nt_status;
+}
+
+/********************************************************************
+ *******************************************************************/
+
+ NTSTATUS cell_connect_dn(struct likewise_cell **c, const char *dn)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	struct likewise_cell *new_cell = NULL;
+	char *dns_domain = NULL;
+
+	if (*c || !dn) {
+		nt_status = NT_STATUS_INVALID_PARAMETER;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	if ((new_cell = cell_new()) == NULL) {
+		nt_status = NT_STATUS_NO_MEMORY;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	/* Set the DNS domain, dn, etc ... and add it to the list */
+
+	dns_domain = cell_dn_to_dns(dn);
+	cell_set_dns_domain(new_cell, dns_domain);
+	SAFE_FREE(dns_domain);
+
+	cell_set_dn(new_cell, dn);
+
+	nt_status = cell_connect(new_cell);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	*c = new_cell;
+
+done:
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		DEBUG(1,("LWI: Failled to connect to cell \"%s\" (%s)\n",
+			 dn ? dn : "NULL", nt_errstr(nt_status)));
+		talloc_destroy(new_cell);
+	}
+
+	return nt_status;
+}
+
+
+/********************************************************************
+ *******************************************************************/
+
+#define MAX_SEARCH_COUNT    2
+
+ ADS_STATUS cell_do_search(struct likewise_cell *c,
+			  const char *search_base,
+			  int scope,
+			  const char *expr,
+			  const char **attrs,
+			  LDAPMessage ** msg)
+{
+	int search_count = 0;
+	ADS_STATUS status;
+	NTSTATUS nt_status;
+
+	/* check for a NULL connection */
+
+	if (!c->conn) {
+		nt_status = cell_connect(c);
+		if (!NT_STATUS_IS_OK(nt_status)) {
+			status = ADS_ERROR_NT(nt_status);
+			return status;
+		}
+	}
+
+	DEBUG(10, ("cell_do_search: Base = %s,  Filter = %s, Scope = %d, GC = %s\n",
+		   search_base, expr, scope,
+		   c->conn->server.gc ? "yes" : "no"));
+
+	/* we try multiple times in case the ADS_STRUCT is bad
+	   and we need to reconnect */
+
+	while (search_count < MAX_SEARCH_COUNT) {
+		*msg = NULL;
+		status = ads_do_search(c->conn, search_base,
+				       scope, expr, attrs, msg);
+		if (ADS_ERR_OK(status)) {
+			return status;
+		}
+
+
+		DEBUG(5, ("cell_do_search: search[%d] failed (%s)\n",
+			  search_count, ads_errstr(status)));
+
+		search_count++;
+
+		/* Houston, we have a problem */
+
+		if (status.error_type == ENUM_ADS_ERROR_LDAP) {
+			switch (status.err.rc) {
+			case LDAP_TIMELIMIT_EXCEEDED:
+			case LDAP_TIMEOUT:
+			case -1:	/* we get this error if we cannot contact
+					   the LDAP server */
+				nt_status = cell_connect(c);
+				if (!NT_STATUS_IS_OK(nt_status)) {
+					status = ADS_ERROR_NT(nt_status);
+					return status;
+				}
+				break;
+			default:
+				/* we're all done here */
+				return status;
+			}
+		}
+	}
+
+	DEBUG(5, ("cell_do_search: exceeded maximum search count!\n"));
+
+	return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
+}
diff --git a/source3/winbindd/idmap_adex/provider_unified.c b/source3/winbindd/idmap_adex/provider_unified.c
new file mode 100644
index 0000000000..f18534797e
--- /dev/null
+++ b/source3/winbindd/idmap_adex/provider_unified.c
@@ -0,0 +1,1180 @@
+/*
+ * idmap_adex
+ *
+ * Provider for RFC2307 and SFU AD Forests
+ *
+ * Copyright (C) Gerald (Jerry) Carter 2006-2008
+ *
+ * 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"
+#include "idmap_adex.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_IDMAP
+
+/* Information needed by the LDAP search filters */
+
+enum filterType { SidFilter, IdFilter, AliasFilter };
+
+struct lwcell_filter
+{
+	enum filterType ftype;
+	bool use2307;
+	union {
+		DOM_SID sid;
+		struct {
+			uint32_t id;
+			enum id_type type;
+		} id;
+		fstring alias;
+	} filter;
+};
+
+/********************************************************************
+ *******************************************************************/
+
+static char* build_id_filter(uint32_t id,
+			     enum id_type type,
+			     uint32_t search_flags)
+{
+	char *filter = NULL;
+	char *oc_filter, *attr_filter;
+	NTSTATUS nt_status;
+	TALLOC_CTX *frame = talloc_stackframe();
+	bool use2307 = ((search_flags & LWCELL_FLAG_USE_RFC2307_ATTRS)
+			== LWCELL_FLAG_USE_RFC2307_ATTRS);
+	bool use_gc = ((search_flags & LWCELL_FLAG_SEARCH_FOREST)
+		       == LWCELL_FLAG_SEARCH_FOREST);
+	const char *oc;
+
+	/* Construct search filter for objectclass and attributes */
+
+	switch (type) {
+	case ID_TYPE_UID:
+		oc = ADEX_OC_USER;
+		if (use2307) {
+			oc = ADEX_OC_POSIX_USER;
+			if (use_gc) {
+				oc = AD_USER;
+			}
+		}
+		oc_filter = talloc_asprintf(frame, "objectclass=%s", oc);
+		attr_filter = talloc_asprintf(frame, "%s=%u",
+					      ADEX_ATTR_UIDNUM, id);
+		break;
+
+	case ID_TYPE_GID:
+		oc = ADEX_OC_GROUP;
+		if (use2307) {
+			oc = ADEX_OC_POSIX_GROUP;
+			if (use_gc) {
+				oc = AD_GROUP;
+			}
+		}
+		oc_filter = talloc_asprintf(frame, "objectclass=%s", oc);
+		attr_filter = talloc_asprintf(frame, "%s=%u",
+					      ADEX_ATTR_GIDNUM, id);
+		break;
+	default:
+		return NULL;
+	}
+
+	BAIL_ON_PTR_ERROR(oc_filter, nt_status);
+	BAIL_ON_PTR_ERROR(attr_filter, nt_status);
+
+	/* Use "keywords=%s" for non-schema cells */
+
+	if (use2307) {
+		filter = talloc_asprintf(frame, "(&(%s)(%s))",
+					 oc_filter, attr_filter);
+	} else {
+		filter = talloc_asprintf(frame, "(&(keywords=%s)(keywords=%s))",
+					 oc_filter, attr_filter);
+	}
+
+	talloc_destroy(oc_filter);
+	talloc_destroy(attr_filter);
+
+done:
+	/* Don't destroy the stackframe CTX since we are returning
+	   memory from it */
+
+	return filter;
+}
+
+/********************************************************************
+ *******************************************************************/
+
+static char* build_alias_filter(const char *alias, uint32_t search_flags)
+{
+	char *filter = NULL;
+	char *user_attr_filter, *group_attr_filter;
+	NTSTATUS nt_status;
+	TALLOC_CTX *frame = talloc_stackframe();
+	bool use2307 = ((search_flags & LWCELL_FLAG_USE_RFC2307_ATTRS)
+			== LWCELL_FLAG_USE_RFC2307_ATTRS);
+	bool search_forest = ((search_flags & LWCELL_FLAG_SEARCH_FOREST)
+			      == LWCELL_FLAG_SEARCH_FOREST);
+
+	/* Construct search filter for objectclass and attributes */
+
+	user_attr_filter = talloc_asprintf(frame, "%s=%s",
+					   ADEX_ATTR_UID, alias);
+	group_attr_filter = talloc_asprintf(frame, "%s=%s",
+					    ADEX_ATTR_DISPLAYNAME, alias);
+	BAIL_ON_PTR_ERROR(user_attr_filter, nt_status);
+	BAIL_ON_PTR_ERROR(group_attr_filter, nt_status);
+
+	/* Use "keywords=%s" for non-schema cells */
+
+	if (use2307) {
+		filter = talloc_asprintf(frame,
+					 "(|(&(%s)(objectclass=%s))(&(%s)(objectclass=%s)))",
+					 user_attr_filter,
+					 search_forest ? AD_USER : ADEX_OC_POSIX_USER,
+					 group_attr_filter,
+					 search_forest ? AD_GROUP : ADEX_OC_POSIX_GROUP);
+	} else {
+		filter = talloc_asprintf(frame,
+					 "(|(keywords=%s)(keywords=%s))",
+					 user_attr_filter,
+					 group_attr_filter);
+	}
+
+	talloc_destroy(user_attr_filter);
+	talloc_destroy(group_attr_filter);
+
+done:
+	/* Don't destroy the stackframe CTX since we are returning
+	   memory from it */
+
+	return filter;
+}
+
+
+/********************************************************************
+ *******************************************************************/
+
+static NTSTATUS search_cell(struct likewise_cell *c,
+			    LDAPMessage **msg,
+			    const struct lwcell_filter *fdata)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	TALLOC_CTX* frame = talloc_stackframe();
+	char *filter = NULL;
+	const char *base = NULL;
+	ADS_STATUS ads_status = ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL);
+        const char *attrs[] = { "*", NULL };
+	int count;
+	char *sid_str;
+
+	/* get the filter and other search parameters */
+
+	switch (fdata->ftype) {
+	case SidFilter:
+		sid_str = sid_string_talloc(frame, &fdata->filter.sid);
+		BAIL_ON_PTR_ERROR(sid_str, nt_status);
+
+		filter = talloc_asprintf(frame, "(keywords=backLink=%s)",
+					 sid_str);
+		break;
+	case IdFilter:
+		filter = build_id_filter(fdata->filter.id.id,
+					 fdata->filter.id.type,
+					 cell_flags(c));
+		break;
+	case AliasFilter:
+		filter = build_alias_filter(fdata->filter.alias,
+					    cell_flags(c));
+		break;
+	default:
+		nt_status = NT_STATUS_INVALID_PARAMETER;
+		break;
+	}
+	BAIL_ON_PTR_ERROR(filter, nt_status);
+
+	base = cell_search_base(c);
+	BAIL_ON_PTR_ERROR(base, nt_status);
+
+	ads_status = cell_do_search(c, base, LDAP_SCOPE_SUBTREE,
+				    filter, attrs, msg);
+
+	nt_status = ads_ntstatus(ads_status);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	/* Now check that we got only one reply */
+
+	count = ads_count_replies(c->conn, *msg);
+	if (count < 1) {
+		nt_status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	if ( count > 1) {
+		nt_status = NT_STATUS_DUPLICATE_NAME;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+done:
+	PRINT_NTSTATUS_ERROR(nt_status, "search_cell", 4);
+
+	talloc_destroy(CONST_DISCARD(char*, base));
+	talloc_destroy(frame);
+
+	return nt_status;
+}
+
+/********************************************************************
+ *******************************************************************/
+
+static NTSTATUS search_domain(struct likewise_cell **cell,
+			      LDAPMessage **msg,
+			      const char *dn,
+			      const DOM_SID *sid)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	TALLOC_CTX* frame = talloc_stackframe();
+	int count;
+
+	nt_status = dc_search_domains(cell, msg, dn, sid);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	/* Now check that we got only one reply */
+
+	count = ads_count_replies(cell_connection(*cell), *msg);
+	if (count < 1) {
+		nt_status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	if ( count > 1) {
+		nt_status = NT_STATUS_DUPLICATE_NAME;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+done:
+	PRINT_NTSTATUS_ERROR(nt_status, "search_domain", 4);
+	talloc_destroy(frame);
+
+	return nt_status;
+}
+
+
+/********************************************************************
+ Check that a DN is within the forest scope.
+ *******************************************************************/
+
+static bool check_forest_scope(const char *dn)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	TALLOC_CTX *frame = talloc_stackframe();
+	char *p = NULL;
+	char *q = NULL;
+	char *dns_domain = NULL;
+	struct winbindd_tdc_domain *domain;
+
+	/* If the DN does *not* contain "$LikewiseIdentityCell",
+	   assume this is a schema mode forest and it is in the
+	   forest scope by definition. */
+
+	if ((p = strstr_m(dn, ADEX_CELL_RDN)) == NULL) {
+		nt_status = NT_STATUS_OK;
+		goto done;
+	}
+
+	/* If this is a non-schema forest, then make sure that the DN
+	   is in the form "...,cn=$LikewiseIdentityCell,DC=..." */
+
+	if ((q = strchr_m(p, ',')) == NULL) {
+		nt_status = NT_STATUS_OBJECT_NAME_INVALID;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	q++;
+	if (StrnCaseCmp(q, "dc=", 3) != 0) {
+		nt_status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+
+	dns_domain = cell_dn_to_dns(q);
+	BAIL_ON_PTR_ERROR(dns_domain, nt_status);
+
+	domain = wcache_tdc_fetch_domain(frame, dns_domain);
+	if (!domain) {
+		nt_status = NT_STATUS_TRUSTED_DOMAIN_FAILURE;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	nt_status = NT_STATUS_OK;
+
+done:
+	talloc_destroy(frame);
+	SAFE_FREE(dns_domain);
+
+	return NT_STATUS_IS_OK(nt_status);
+}
+
+
+
+/********************************************************************
+ Check that only one result was returned within the forest cell
+ scope.
+ *******************************************************************/
+
+static NTSTATUS check_result_unique_scoped(ADS_STRUCT **ads_list,
+					   LDAPMessage **msg_list,
+					   int num_resp,
+					   char **dn,
+					   DOM_SID *user_sid)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	int i;
+	ADS_STRUCT *ads = NULL;
+	LDAPMessage *msg = NULL;
+	int count = 0;
+	char *entry_dn = NULL;
+	TALLOC_CTX *frame = talloc_stackframe();
+
+	if (!dn || !user_sid) {
+		nt_status = NT_STATUS_INVALID_PARAMETER;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	*dn = NULL;
+
+	if (!ads_list || !msg_list || (num_resp == 0)) {
+		nt_status = NT_STATUS_NO_SUCH_FILE;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	/* Loop over all msgs */
+
+	for (i=0; i<num_resp; i++) {
+		LDAPMessage *e = ads_first_entry(ads_list[i], msg_list[i]);
+
+		while (e) {
+			entry_dn = ads_get_dn(ads_list[i], e);
+			BAIL_ON_PTR_ERROR(entry_dn, nt_status);
+
+			if (check_forest_scope(entry_dn)) {
+				count++;
+
+				/* If we've already broken the condition, no
+				   need to continue */
+
+				if (count > 1) {
+					nt_status = NT_STATUS_DUPLICATE_NAME;
+					BAIL_ON_NTSTATUS_ERROR(nt_status);
+				}
+
+				ads = ads_list[i];
+				msg = e;
+				*dn = SMB_STRDUP(entry_dn);
+				BAIL_ON_PTR_ERROR((*dn), nt_status);
+			}
+
+			e = ads_next_entry(ads_list[i], e);
+			SAFE_FREE(entry_dn);
+		}
+	}
+
+	if (!ads || !msg) {
+		nt_status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	/* If we made is through the loop, then grab the user_sid and
+	   run home to base */
+
+	/*
+	   Try and get the SID from either objectSid or keywords.
+	   We cannot use pull_sid() here since we want to try
+	   both methods and not only one or the other (and we
+	   have no full likewise_cell struct.
+
+	   Fail if both are unavailable
+	*/
+
+	if (!ads_pull_sid(ads, msg, "objectSid", user_sid)) {
+		char **keywords;
+		char *s;
+		size_t num_lines = 0;
+
+		keywords = ads_pull_strings(ads, frame, msg, "keywords",
+					    &num_lines);
+		BAIL_ON_PTR_ERROR(keywords, nt_status);
+
+		s = find_attr_string(keywords, num_lines, "backLink");
+		if (!s) {
+			nt_status = NT_STATUS_INTERNAL_DB_CORRUPTION;
+			BAIL_ON_NTSTATUS_ERROR(nt_status);
+		}
+
+		if (!string_to_sid(user_sid, s)) {
+			nt_status = NT_STATUS_INVALID_SID;
+			BAIL_ON_NTSTATUS_ERROR(nt_status);
+		}
+	}
+
+	nt_status = NT_STATUS_OK;
+
+done:
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		SAFE_FREE(*dn);
+	}
+
+	talloc_destroy(frame);
+	SAFE_FREE(entry_dn);
+
+	return nt_status;
+}
+
+/********************************************************************
+ Search all forests.  Each forest can have it's own forest-cell
+ settings so we have to generate the filter for each search.
+ We don't use gc_search_all_forests() since we may have a different
+ schema model in each forest and need to construct the search
+ filter for each GC search.
+ *******************************************************************/
+
+static NTSTATUS search_forest(struct likewise_cell *forest_cell,
+			      LDAPMessage **msg,
+			      const struct lwcell_filter *fdata)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	TALLOC_CTX *frame = talloc_stackframe();
+	char *filter = NULL;
+	char *dn = NULL;
+	struct gc_info *gc = NULL;
+	ADS_STRUCT **ads_list = NULL;
+	LDAPMessage **msg_list = NULL;
+	int num_resp = 0;
+	LDAPMessage *m;
+	DOM_SID user_sid;
+	struct likewise_cell *domain_cell = NULL;
+
+	if ((gc = gc_search_start()) == NULL) {
+		nt_status = NT_STATUS_INVALID_DOMAIN_STATE;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	while (gc) {
+		char *sid_binstr = NULL;
+		uint32_t flags = LWCELL_FLAG_SEARCH_FOREST;
+
+		m = NULL;
+
+		flags |= cell_flags(gc->forest_cell);
+
+		switch (fdata->ftype) {
+		case SidFilter:
+			sid_binstr = sid_binstring(&fdata->filter.sid);
+			BAIL_ON_PTR_ERROR(sid_binstr, nt_status);
+
+			filter = talloc_asprintf(frame, "(objectSid=%s)", sid_binstr);
+			SAFE_FREE(sid_binstr);
+			break;
+		case IdFilter:
+			filter = build_id_filter(fdata->filter.id.id,
+						 fdata->filter.id.type, flags);
+			break;
+		case AliasFilter:
+			filter = build_alias_filter(fdata->filter.alias, flags);
+			break;
+		}
+
+		/* First find the sparse object in GC */
+		nt_status = gc_search_forest(gc, &m, filter);
+		if (!NT_STATUS_IS_OK(nt_status)) {
+			gc = gc->next;
+			continue;
+		}
+
+		nt_status = add_ads_result_to_array(cell_connection(gc->forest_cell),
+						    m, &ads_list, &msg_list,
+						    &num_resp);
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+		gc = gc->next;
+	}
+
+	/* Uniqueness check across forests */
+
+	nt_status = check_result_unique_scoped(ads_list, msg_list, num_resp,
+					       &dn, &user_sid);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	nt_status = search_domain(&domain_cell, &m, dn, &user_sid);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	/* Save the connection and results in the return parameters */
+
+	forest_cell->gc_search_cell = domain_cell;
+	*msg = m;
+
+done:
+	PRINT_NTSTATUS_ERROR(nt_status, "search_forest", 4);
+
+	SAFE_FREE(dn);
+
+	free_result_array(ads_list, msg_list, num_resp);
+	talloc_destroy(frame);
+
+	return nt_status;
+}
+
+/********************************************************************
+ *******************************************************************/
+
+static NTSTATUS search_cell_list(struct likewise_cell **c,
+				 LDAPMessage **m,
+				 const struct lwcell_filter *fdata)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	struct likewise_cell *cell = NULL;
+	LDAPMessage *msg = NULL;
+	struct likewise_cell *result_cell = NULL;
+
+	if ((cell = cell_list_head()) == NULL) {
+		nt_status = NT_STATUS_INVALID_SERVER_STATE;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	while (cell) {
+		/* Clear any previous GC search results */
+
+		cell->gc_search_cell = NULL;
+
+		if (cell_search_forest(cell)) {
+			nt_status = search_forest(cell, &msg, fdata);
+		} else {
+			nt_status = search_cell(cell, &msg, fdata);
+		}
+
+		/* Always point to the search result cell.
+		   In forests this might be for another domain
+		   which means the schema model may be different */
+
+		result_cell = cell->gc_search_cell ?
+			cell->gc_search_cell : cell;
+
+		/* Check if we are done */
+
+		if (NT_STATUS_IS_OK(nt_status)) {
+			break;
+		}
+
+		/* No luck.  Free memory and hit the next cell.
+		   Forest searches always set the gc_search_cell
+		   so give preference to that connection if possible. */
+
+		ads_msgfree(cell_connection(result_cell), msg);
+		msg = NULL;
+
+		cell = cell->next;
+	}
+
+	/* This might be assigning NULL but that is ok as long as we
+	   give back the proper error code */
+
+	*c = result_cell;
+	*m = msg;
+
+done:
+	PRINT_NTSTATUS_ERROR(nt_status, "search_cell_list", 3);
+
+	return nt_status;
+}
+
+/********************************************************************
+ Pull the SID from an object which is always stored in the keywords
+ attribute as "backLink=S-1-5-21-..."
+ *******************************************************************/
+
+static NTSTATUS pull_sid(struct likewise_cell *c,
+			 LDAPMessage *msg,
+			 DOM_SID *sid)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	TALLOC_CTX *frame = talloc_stackframe();
+	ADS_STRUCT *ads = NULL;
+
+	ads = cell_connection(c);
+
+	/*
+	   We have two ways of getting the sid:
+	   (a) from the objectSID in case of a GC search,
+	   (b) from backLink in the case of a cell search.
+	   Pull the keywords attributes and grab the backLink.
+	*/
+
+	if (!ads_pull_sid(ads, msg, "objectSid", sid)) {
+		char **keywords;
+		char *s;
+		size_t num_lines = 0;
+
+		keywords = ads_pull_strings(ads, frame, msg,
+					    "keywords", &num_lines);
+		BAIL_ON_PTR_ERROR(keywords, nt_status);
+
+		s = find_attr_string(keywords, num_lines, "backLink");
+		if (!s) {
+			nt_status = NT_STATUS_INTERNAL_DB_CORRUPTION;
+			BAIL_ON_NTSTATUS_ERROR(nt_status);
+		}
+
+		if (!string_to_sid(sid, s)) {
+			nt_status = NT_STATUS_INVALID_SID;
+			BAIL_ON_NTSTATUS_ERROR(nt_status);
+		}
+	}
+
+	nt_status = NT_STATUS_OK;
+
+done:
+	talloc_destroy(frame);
+
+	return nt_status;
+}
+
+/********************************************************************
+ *******************************************************************/
+
+static NTSTATUS get_object_type(struct likewise_cell *c,
+				LDAPMessage *msg,
+				enum id_type *type)
+{
+	TALLOC_CTX *ctx = talloc_stackframe();
+	char **oc_list = NULL;
+	NTSTATUS nt_status = NT_STATUS_OK;
+	size_t list_size = 0;
+	char *s = NULL;
+	ADS_STRUCT *ads = NULL;
+
+	ads = cell_connection(c);
+
+	/* Deal with RFC 2307 support first */
+
+	if (cell_flags(c) & LWCELL_FLAG_USE_RFC2307_ATTRS) {
+		oc_list = ads_pull_strings(ads, ctx, msg,
+					   "objectClass", &list_size);
+		if (!oc_list) {
+			nt_status = NT_STATUS_INTERNAL_DB_CORRUPTION;
+			goto done;
+		}
+
+		/* Check for posix classes and AD classes */
+
+		if (is_object_class(oc_list, list_size, ADEX_OC_POSIX_USER)
+		    || is_object_class(oc_list, list_size, AD_USER)) {
+			*type = ID_TYPE_UID;
+		} else if (is_object_class(oc_list, list_size, ADEX_OC_POSIX_GROUP)
+			   || is_object_class(oc_list, list_size, AD_GROUP)) {
+			*type = ID_TYPE_GID;
+		} else {
+			*type = ID_TYPE_NOT_SPECIFIED;
+			nt_status = NT_STATUS_INVALID_PARAMETER;
+		}
+	} else {
+		/* Default to non-schema mode */
+
+		oc_list = ads_pull_strings(ads, ctx, msg,
+					   "keywords", &list_size);
+		if (!oc_list) {
+			nt_status = NT_STATUS_INTERNAL_DB_CORRUPTION;
+			goto done;
+		}
+
+		s = find_attr_string(oc_list, list_size, "objectClass");
+		if (!s) {
+			nt_status = NT_STATUS_INTERNAL_DB_CORRUPTION;
+			goto done;
+		}
+
+		if (strequal(s, ADEX_OC_USER)) {
+			*type = ID_TYPE_UID;
+		} else if (strequal(s, ADEX_OC_GROUP)) {
+			*type = ID_TYPE_GID;
+		} else {
+			*type = ID_TYPE_NOT_SPECIFIED;
+			nt_status = NT_STATUS_INVALID_PARAMETER;
+		}
+	}
+
+	nt_status = NT_STATUS_OK;
+
+done:
+	talloc_destroy(ctx);
+
+	return nt_status;
+}
+
+/********************************************************************
+ Pull an attribute uint32_t  value
+ *******************************************************************/
+
+static NTSTATUS get_object_uint32(struct likewise_cell *c,
+				  LDAPMessage *msg,
+				  const char *attrib,
+				  uint32_t *x)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	char **keywords = NULL;
+	size_t list_size = 0;
+	TALLOC_CTX *frame = talloc_stackframe();
+	ADS_STRUCT *ads = NULL;
+
+	ads = cell_connection(c);
+
+	/* Deal with RFC2307 schema */
+
+	if (cell_flags(c) & LWCELL_FLAG_USE_RFC2307_ATTRS) {
+		if (!ads_pull_uint32(ads, msg, attrib, x)) {
+			nt_status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
+			BAIL_ON_NTSTATUS_ERROR(nt_status);
+		}
+	} else {
+		/* Non-schema mode */
+		char *s = NULL;
+		uint32_t num;
+
+		keywords = ads_pull_strings(ads, frame, msg, "keywords",
+					    &list_size);
+		BAIL_ON_PTR_ERROR(keywords, nt_status);
+
+		s = find_attr_string(keywords, list_size, attrib);
+		if (!s) {
+			nt_status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
+			BAIL_ON_NTSTATUS_ERROR(nt_status);
+		}
+
+		num = strtoll(s, NULL, 10);
+		if (errno == ERANGE) {
+			nt_status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
+			BAIL_ON_NTSTATUS_ERROR(nt_status);
+		}
+		*x = num;
+	}
+
+	nt_status = NT_STATUS_OK;
+
+done:
+	talloc_destroy(frame);
+
+	return nt_status;
+}
+
+/********************************************************************
+ *******************************************************************/
+
+static NTSTATUS get_object_id(struct likewise_cell *c,
+			      LDAPMessage *msg,
+			      enum id_type type,
+			      uint32_t *id)
+{
+	NTSTATUS nt_status = NT_STATUS_OK;
+	const char *id_attr;
+
+	/* Figure out which attribute we need to pull */
+
+	switch (type) {
+	case ID_TYPE_UID:
+		id_attr = ADEX_ATTR_UIDNUM;
+		break;
+	case ID_TYPE_GID:
+		id_attr = ADEX_ATTR_GIDNUM;
+		break;
+	default:
+		nt_status = NT_STATUS_INVALID_PARAMETER;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+		break;
+	}
+
+	nt_status = get_object_uint32(c, msg, id_attr, id);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+done:
+	return nt_status;
+}
+
+/********************************************************************
+ Pull the uid/gid and type from an object.  This differs depending on
+ the cell flags.
+ *******************************************************************/
+
+static NTSTATUS pull_id(struct likewise_cell *c,
+			LDAPMessage *msg,
+			uint32_t *id,
+			enum id_type *type)
+{
+	NTSTATUS nt_status;
+
+	nt_status = get_object_type(c, msg, type);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	nt_status = get_object_id(c, msg, *type, id);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+done:
+	return nt_status;
+}
+
+/********************************************************************
+ Pull an attribute string value
+ *******************************************************************/
+
+static NTSTATUS get_object_string(struct likewise_cell *c,
+				  LDAPMessage *msg,
+				  TALLOC_CTX *ctx,
+				  const char *attrib,
+				  char **string)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	char **keywords = NULL;
+	size_t list_size = 0;
+	TALLOC_CTX *frame = talloc_stackframe();
+	ADS_STRUCT *ads = NULL;
+
+	*string = NULL;
+
+	ads = cell_connection(c);
+
+	/* Deal with RFC2307 schema */
+
+	if (cell_flags(c) & LWCELL_FLAG_USE_RFC2307_ATTRS) {
+		*string = ads_pull_string(ads, ctx, msg, attrib);
+	} else {
+		/* Non-schema mode */
+
+		char *s = NULL;
+
+		keywords = ads_pull_strings(ads, frame, msg,
+					    "keywords", &list_size);
+		if (!keywords) {
+			nt_status = NT_STATUS_NO_MEMORY;
+			BAIL_ON_NTSTATUS_ERROR(nt_status);
+		}
+		s = find_attr_string(keywords, list_size, attrib);
+		if (s) {
+			*string = talloc_strdup(ctx, s);
+		}
+	}
+
+	if (!*string) {
+		nt_status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	nt_status = NT_STATUS_OK;
+
+done:
+	talloc_destroy(frame);
+
+	return nt_status;
+}
+
+/********************************************************************
+ Pull the struct passwd fields for a user
+ *******************************************************************/
+
+static NTSTATUS pull_nss_info(struct likewise_cell *c,
+			      LDAPMessage *msg,
+			      TALLOC_CTX *ctx,
+			      char **homedir,
+			      char **shell,
+			      char **gecos,
+			      gid_t *p_gid)
+{
+	NTSTATUS nt_status;
+
+	nt_status = get_object_string(c, msg, ctx, ADEX_ATTR_HOMEDIR, homedir);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	nt_status = get_object_string(c, msg, ctx, ADEX_ATTR_SHELL, shell);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	nt_status = get_object_string(c, msg, ctx, ADEX_ATTR_GECOS, gecos);
+	/* Gecos is often not set so ignore failures */
+
+	nt_status = get_object_uint32(c, msg, ADEX_ATTR_GIDNUM, p_gid);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+done:
+	return nt_status;
+}
+
+/********************************************************************
+ Pull the struct passwd fields for a user
+ *******************************************************************/
+
+static NTSTATUS pull_alias(struct likewise_cell *c,
+			   LDAPMessage *msg,
+			   TALLOC_CTX *ctx,
+			   char **alias)
+{
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	enum id_type type;
+	const char *attr = NULL;
+
+	/* Figure out if this is a user or a group */
+
+	nt_status = get_object_type(c, msg, &type);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	switch (type) {
+	case ID_TYPE_UID:
+		attr = ADEX_ATTR_UID;
+		break;
+	case ID_TYPE_GID:
+		/* What is the group attr for RFC2307 Forests? */
+		attr = ADEX_ATTR_DISPLAYNAME;
+		break;
+	default:
+		nt_status = NT_STATUS_INVALID_PARAMETER;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+		break;
+	}
+
+	nt_status = get_object_string(c, msg, ctx, attr, alias);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+done:
+	return nt_status;
+}
+
+/********************************************************************
+ *******************************************************************/
+
+static NTSTATUS _ccp_get_sid_from_id(DOM_SID * sid,
+				     uint32_t id, enum id_type type)
+{
+	struct likewise_cell *cell = NULL;
+	LDAPMessage *msg = NULL;
+	NTSTATUS nt_status;
+	struct lwcell_filter filter;
+
+	filter.ftype = IdFilter;
+	filter.filter.id.id = id;
+	filter.filter.id.type = type;
+
+	nt_status = search_cell_list(&cell, &msg, &filter);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	nt_status = pull_sid(cell, msg, sid);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+done:
+	ads_msgfree(cell->conn, msg);
+
+	return nt_status;
+}
+
+/********************************************************************
+ *******************************************************************/
+
+static NTSTATUS _ccp_get_id_from_sid(uint32_t * id,
+				     enum id_type *type,
+				     const DOM_SID * sid)
+{
+	struct likewise_cell *cell = NULL;
+	LDAPMessage *msg = NULL;
+	NTSTATUS nt_status;
+	struct lwcell_filter filter;
+
+	filter.ftype = SidFilter;
+	sid_copy(&filter.filter.sid, sid);
+
+	nt_status = search_cell_list(&cell, &msg, &filter);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	nt_status = pull_id(cell, msg, id, type);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	if (*id < min_id_value()) {
+		nt_status = NT_STATUS_INVALID_PARAMETER;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+done:
+	ads_msgfree(cell->conn, msg);
+
+	return nt_status;
+}
+
+/********************************************************************
+ *******************************************************************/
+
+static NTSTATUS _ccp_nss_get_info(const DOM_SID * sid,
+				  TALLOC_CTX * ctx,
+				  char **homedir,
+				  char **shell,
+				  char **gecos, gid_t * p_gid)
+{
+	struct likewise_cell *cell = NULL;
+	LDAPMessage *msg = NULL;
+	NTSTATUS nt_status;
+	struct lwcell_filter filter;
+	enum id_type type;
+
+	filter.ftype = SidFilter;
+	sid_copy(&filter.filter.sid, sid);
+
+	nt_status = search_cell_list(&cell, &msg, &filter);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	nt_status = get_object_type(cell, msg, &type);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	if (type != ID_TYPE_UID) {
+		nt_status = NT_STATUS_NO_SUCH_USER;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	nt_status = pull_nss_info(cell, msg, ctx, homedir, shell, gecos,
+				  (uint32_t*) p_gid);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+done:
+	ads_msgfree(cell->conn, msg);
+
+	return nt_status;
+}
+
+/**********************************************************************
+ *********************************************************************/
+
+static NTSTATUS _ccp_map_to_alias(TALLOC_CTX *ctx,
+				  const char *domain,
+				  const char *name, char **alias)
+{
+	TALLOC_CTX *frame = talloc_stackframe();
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	DOM_SID sid;
+	struct likewise_cell *cell = NULL;
+	LDAPMessage *msg = NULL;
+	struct lwcell_filter filter;
+	enum lsa_SidType sid_type;
+
+	/* Convert the name to a SID */
+
+	nt_status = gc_name_to_sid(domain, name, &sid, &sid_type);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	/* Find the user/group */
+
+	filter.ftype = SidFilter;
+	sid_copy(&filter.filter.sid, &sid);
+
+	nt_status = search_cell_list(&cell, &msg, &filter);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	/* Pull the alias and return */
+
+	nt_status = pull_alias(cell, msg, ctx, alias);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+done:
+	PRINT_NTSTATUS_ERROR(nt_status, "map_to_alias", 3);
+
+	talloc_destroy(frame);
+	ads_msgfree(cell_connection(cell), msg);
+
+	return nt_status;
+}
+
+/**********************************************************************
+ Map from an alias name to the canonical, qualified name.
+ Ensure that the alias is only pull from the closest in which
+ the user or gorup is enabled in
+ *********************************************************************/
+
+static NTSTATUS _ccp_map_from_alias(TALLOC_CTX *mem_ctx,
+				    const char *domain,
+				    const char *alias, char **name)
+{
+	TALLOC_CTX *frame = talloc_stackframe();
+	NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
+	DOM_SID sid;
+	struct likewise_cell *cell_alias = NULL;
+	LDAPMessage *msg_alias = NULL;
+	struct likewise_cell *cell_sid = NULL;
+	LDAPMessage *msg_sid = NULL;
+	struct lwcell_filter filter;
+	char *canonical_name = NULL;
+	enum lsa_SidType type;
+
+	/* Find the user/group */
+
+	filter.ftype = AliasFilter;
+	fstrcpy(filter.filter.alias, alias);
+
+	nt_status = search_cell_list(&cell_alias, &msg_alias, &filter);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	nt_status = pull_sid(cell_alias, msg_alias, &sid);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	/* Now search again for the SID according to the cell list.
+	   Verify that the cell of both search results is the same
+	   so that we only match an alias from the closest cell
+	   in which a user/group has been instantied. */
+
+	filter.ftype = SidFilter;
+	sid_copy(&filter.filter.sid, &sid);
+
+	nt_status = search_cell_list(&cell_sid, &msg_sid, &filter);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	if (cell_alias != cell_sid) {
+		nt_status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
+		BAIL_ON_NTSTATUS_ERROR(nt_status);
+	}
+
+	/* Finally do the GC sid/name conversion */
+
+	nt_status = gc_sid_to_name(&sid, &canonical_name, &type);
+	BAIL_ON_NTSTATUS_ERROR(nt_status);
+
+	*name = talloc_strdup(mem_ctx, canonical_name);
+	BAIL_ON_PTR_ERROR((*name), nt_status);
+
+	nt_status = NT_STATUS_OK;
+
+done:
+	PRINT_NTSTATUS_ERROR(nt_status, "map_from_alias", 3);
+
+	ads_msgfree(cell_connection(cell_alias), msg_alias);
+	ads_msgfree(cell_connection(cell_sid), msg_sid);
+
+	SAFE_FREE(canonical_name);
+
+	talloc_destroy(frame);
+
+	return nt_status;
+}
+
+/********************************************************************
+ *******************************************************************/
+
+struct cell_provider_api ccp_unified = {
+	.get_sid_from_id = _ccp_get_sid_from_id,
+	.get_id_from_sid = _ccp_get_id_from_sid,
+	.get_nss_info    = _ccp_nss_get_info,
+	.map_to_alias    = _ccp_map_to_alias,
+	.map_from_alias  = _ccp_map_from_alias
+};