Add infrastructure for reading/storing Group Policy state and control data in the registry.

Guenther
(This used to be commit f673bbd300d972dd7ae2d092b3b1e642ed29cfd2)

1 files changed, 1058 insertions, 0 deletions

diff --git a/source3/libgpo/gpo_reg.c b/source3/libgpo/gpo_reg.c
new file mode 100644
index 0000000000..2a27a7ed93
--- /dev/null
+++ b/source3/libgpo/gpo_reg.c
@@ -0,0 +1,1058 @@
+/*
+ *  Unix SMB/CIFS implementation.
+ *  Group Policy Object Support
+ *  Copyright (C) Guenther Deschner 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "includes.h"
+
+
+extern REGISTRY_OPS regdb_ops;
+
+static int gp_reg_fetch_keys(const char *key, REGSUBKEY_CTR *subkey_ctr)
+{
+	return regdb_ops.fetch_subkeys(key, subkey_ctr);
+}
+
+static bool gp_reg_store_keys(const char *key, REGSUBKEY_CTR *subkeys)
+{
+	return regdb_ops.store_subkeys(key, subkeys);
+}
+
+static int gp_reg_fetch_values(const char *key, REGVAL_CTR *val)
+{
+	return regdb_ops.fetch_values(key, val);
+}
+
+static bool gp_reg_store_values(const char *key, REGVAL_CTR *val)
+{
+	return regdb_ops.store_values(key, val);
+}
+
+static WERROR gp_reg_get_secdesc(TALLOC_CTX *mem_ctx, const char *key,
+				 struct security_descriptor **psecdesc)
+{
+	return regdb_ops.get_secdesc(mem_ctx, key, psecdesc);
+}
+
+static WERROR gp_reg_set_secdesc(const char *key,
+				 struct security_descriptor *secdesc)
+{
+	return regdb_ops.set_secdesc(key, secdesc);
+}
+
+/****************************************************************
+****************************************************************/
+
+static REGISTRY_OPS gp_reg_ops = {
+	.fetch_subkeys		= gp_reg_fetch_keys,
+	.fetch_values		= gp_reg_fetch_values,
+	.store_subkeys		= gp_reg_store_keys,
+	.store_values		= gp_reg_store_values,
+/*	.reg_access_check	= gp_reg_reg_access_check, */
+	.get_secdesc		= gp_reg_get_secdesc,
+	.set_secdesc		= gp_reg_set_secdesc
+};
+
+/****************************************************************
+****************************************************************/
+
+struct nt_user_token *registry_create_system_token(TALLOC_CTX *mem_ctx)
+{
+	struct nt_user_token *token = NULL;
+
+	token = TALLOC_ZERO_P(mem_ctx, struct nt_user_token);
+	if (!token) {
+		DEBUG(1,("talloc failed\n"));
+		return NULL;
+	}
+
+	token->privileges = se_priv_all;
+
+	if (!NT_STATUS_IS_OK(add_sid_to_array(token, &global_sid_System,
+			 &token->user_sids, &token->num_sids))) {
+		DEBUG(1,("Error adding nt-authority system sid to token\n"));
+		return NULL;
+	}
+
+	return token;
+}
+
+/****************************************************************
+****************************************************************/
+
+WERROR gp_init_reg_ctx(TALLOC_CTX *mem_ctx,
+		       const char *initial_path,
+		       uint32_t desired_access,
+		       const struct nt_user_token *token,
+		       struct gp_registry_context **reg_ctx)
+{
+	struct gp_registry_context *tmp_ctx;
+	static REGISTRY_HOOK gp_reg_hook;
+	WERROR werr;
+
+	if (!reg_ctx) {
+		return WERR_INVALID_PARAM;
+	}
+
+	if (!regdb_init()) {
+		return WERR_CAN_NOT_COMPLETE;
+	}
+
+	gp_reg_hook.keyname = initial_path; /* KEY_SAMBA_GROUP_POLICY */
+	gp_reg_hook.ops = &gp_reg_ops;
+
+	/* not sure about the cache hook */
+	reghook_cache_init();
+
+	if (!reghook_cache_add(&gp_reg_hook)) {
+		return WERR_CAN_NOT_COMPLETE;
+	}
+
+	tmp_ctx = TALLOC_ZERO_P(mem_ctx, struct gp_registry_context);
+	W_ERROR_HAVE_NO_MEMORY(tmp_ctx);
+
+	if (token) {
+		tmp_ctx->token = token;
+	} else {
+		tmp_ctx->token = registry_create_system_token(mem_ctx);
+	}
+	if (!tmp_ctx->token) {
+		TALLOC_FREE(tmp_ctx);
+		return WERR_NOMEM;
+	}
+
+	if (initial_path) {
+		tmp_ctx->path = talloc_strdup(mem_ctx, initial_path);
+		if (!tmp_ctx->path) {
+			TALLOC_FREE(tmp_ctx);
+			return WERR_NOMEM;
+		}
+
+		werr = reg_open_path(mem_ctx, tmp_ctx->path, desired_access,
+				     tmp_ctx->token, &tmp_ctx->curr_key);
+		if (!W_ERROR_IS_OK(werr)) {
+			TALLOC_FREE(tmp_ctx);
+			return werr;
+		}
+	}
+
+	*reg_ctx = tmp_ctx;
+
+	return WERR_OK;
+}
+
+/****************************************************************
+****************************************************************/
+
+void gp_free_reg_ctx(struct gp_registry_context *reg_ctx)
+{
+	TALLOC_FREE(reg_ctx);
+}
+
+/****************************************************************
+****************************************************************/
+
+WERROR gp_store_reg_subkey(TALLOC_CTX *mem_ctx,
+			   const char *subkeyname,
+			   struct registry_key *curr_key,
+			   struct registry_key **new_key)
+{
+	enum winreg_CreateAction action = REG_ACTION_NONE;
+	WERROR werr;
+
+	werr = reg_createkey(mem_ctx, curr_key, subkeyname,
+			     REG_KEY_WRITE, new_key, &action);
+	if (W_ERROR_IS_OK(werr) && (action != REG_CREATED_NEW_KEY)) {
+		return WERR_OK;
+	}
+
+	return werr;
+}
+
+/****************************************************************
+****************************************************************/
+
+WERROR gp_read_reg_subkey(TALLOC_CTX *mem_ctx,
+			  struct gp_registry_context *reg_ctx,
+			  const char *subkeyname,
+			  struct registry_key **key)
+{
+	const char *tmp = NULL;
+
+	if (!reg_ctx || !subkeyname || !key) {
+		return WERR_INVALID_PARAM;
+	}
+
+	tmp = talloc_asprintf(mem_ctx, "%s\\%s", reg_ctx->path, subkeyname);
+	W_ERROR_HAVE_NO_MEMORY(tmp);
+
+	return reg_open_path(mem_ctx, tmp, REG_KEY_READ,
+			     reg_ctx->token, key);
+}
+
+/****************************************************************
+****************************************************************/
+
+WERROR gp_store_reg_val_sz(TALLOC_CTX *mem_ctx,
+			   struct registry_key *key,
+			   const char *val_name,
+			   const char *val)
+{
+	struct registry_value reg_val;
+	ZERO_STRUCT(reg_val);
+
+	/* FIXME: hack */
+	val = val ? val : " ";
+
+	reg_val.type = REG_SZ;
+	reg_val.v.sz.len = strlen(val);
+	reg_val.v.sz.str = talloc_strdup(mem_ctx, val);
+	W_ERROR_HAVE_NO_MEMORY(reg_val.v.sz.str);
+
+	return reg_setvalue(key, val_name, &reg_val);
+}
+
+/****************************************************************
+****************************************************************/
+
+static WERROR gp_store_reg_val_dword(TALLOC_CTX *mem_ctx,
+				     struct registry_key *key,
+				     const char *val_name,
+				     uint32_t val)
+{
+	struct registry_value reg_val;
+	ZERO_STRUCT(reg_val);
+
+	reg_val.type = REG_DWORD;
+	reg_val.v.dword = val;
+
+	return reg_setvalue(key, val_name, &reg_val);
+}
+
+/****************************************************************
+****************************************************************/
+
+WERROR gp_read_reg_val_sz(TALLOC_CTX *mem_ctx,
+			  struct registry_key *key,
+			  const char *val_name,
+			  const char **val)
+{
+	WERROR werr;
+	struct registry_value *reg_val = NULL;
+
+	werr = reg_queryvalue(mem_ctx, key, val_name, &reg_val);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	if (reg_val->type != REG_SZ) {
+		return WERR_INVALID_DATATYPE;
+	}
+
+	*val = talloc_strdup(mem_ctx, reg_val->v.sz.str);
+	W_ERROR_HAVE_NO_MEMORY(*val);
+
+	return WERR_OK;
+}
+
+/****************************************************************
+****************************************************************/
+
+static WERROR gp_read_reg_val_dword(TALLOC_CTX *mem_ctx,
+				    struct registry_key *key,
+				    const char *val_name,
+				    uint32_t *val)
+{
+	WERROR werr;
+	struct registry_value *reg_val = NULL;
+
+	werr = reg_queryvalue(mem_ctx, key, val_name, &reg_val);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	if (reg_val->type != REG_DWORD) {
+		return WERR_INVALID_DATATYPE;
+	}
+
+	*val = reg_val->v.dword;
+
+	return WERR_OK;
+}
+
+/****************************************************************
+****************************************************************/
+
+static WERROR gp_store_reg_gpovals(TALLOC_CTX *mem_ctx,
+				   struct registry_key *key,
+				   struct GROUP_POLICY_OBJECT *gpo)
+{
+	WERROR werr;
+
+	if (!key || !gpo) {
+		return WERR_INVALID_PARAM;
+	}
+
+	werr = gp_store_reg_val_dword(mem_ctx, key, "Version",
+				      gpo->version);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	werr = gp_store_reg_val_dword(mem_ctx, key, "WQLFilterPass",
+				      true); /* fake */
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	werr = gp_store_reg_val_dword(mem_ctx, key, "AccessDenied",
+				      false); /* fake */
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	werr = gp_store_reg_val_dword(mem_ctx, key, "GPO-Disabled",
+				      (gpo->options & GPO_FLAG_DISABLE));
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	werr = gp_store_reg_val_dword(mem_ctx, key, "Options",
+				      gpo->options);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	werr = gp_store_reg_val_sz(mem_ctx, key, "GPOID",
+				   gpo->name);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	werr = gp_store_reg_val_sz(mem_ctx, key, "SOM",
+				   gpo->link);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	werr = gp_store_reg_val_sz(mem_ctx, key, "DisplayName",
+				   gpo->display_name);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	werr = gp_store_reg_val_sz(mem_ctx, key, "WQL-Id",
+				   NULL);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	return werr;
+}
+
+/****************************************************************
+****************************************************************/
+
+static const char *gp_reg_groupmembership_path(TALLOC_CTX *mem_ctx,
+					       const DOM_SID *sid,
+					       uint32_t flags)
+{
+	if (flags & GPO_LIST_FLAG_MACHINE) {
+		return "GroupMembership";
+	}
+
+	return talloc_asprintf(mem_ctx, "%s\\%s", sid_string_tos(sid),
+			       "GroupMembership");
+}
+
+/****************************************************************
+****************************************************************/
+
+static WERROR gp_reg_del_groupmembership(TALLOC_CTX *mem_ctx,
+					 struct registry_key *key,
+					 const struct nt_user_token *token,
+					 uint32_t flags)
+{
+	const char *path = NULL;
+
+	path = gp_reg_groupmembership_path(mem_ctx, &token->user_sids[0],
+					   flags);
+	W_ERROR_HAVE_NO_MEMORY(path);
+
+	return reg_deletekey_recursive(mem_ctx, key, path);
+
+}
+
+/****************************************************************
+****************************************************************/
+
+static WERROR gp_reg_store_groupmembership(TALLOC_CTX *mem_ctx,
+					   struct gp_registry_context *reg_ctx,
+					   const struct nt_user_token *token,
+					   uint32_t flags)
+{
+	struct registry_key *key = NULL;
+	WERROR werr;
+	int i = 0;
+	const char *valname = NULL;
+	const char *path = NULL;
+	const char *val = NULL;
+	int count = 0;
+
+	path = gp_reg_groupmembership_path(mem_ctx, &token->user_sids[0],
+					   flags);
+	W_ERROR_HAVE_NO_MEMORY(path);
+
+	gp_reg_del_groupmembership(mem_ctx, reg_ctx->curr_key, token, flags);
+
+	werr = gp_store_reg_subkey(mem_ctx, path,
+				   reg_ctx->curr_key, &key);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	for (i=0; i<token->num_sids; i++) {
+
+		valname = talloc_asprintf(mem_ctx, "Group%d", count++);
+		W_ERROR_HAVE_NO_MEMORY(valname);
+
+		val = sid_string_talloc(mem_ctx, &token->user_sids[i]);
+		W_ERROR_HAVE_NO_MEMORY(val);
+		werr = gp_store_reg_val_sz(mem_ctx, key, valname, val);
+		W_ERROR_NOT_OK_RETURN(werr);
+	}
+
+	werr = gp_store_reg_val_dword(mem_ctx, key, "Count", count);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	return WERR_OK;
+}
+
+/****************************************************************
+****************************************************************/
+#if 0
+/* not used yet */
+static WERROR gp_reg_read_groupmembership(TALLOC_CTX *mem_ctx,
+					  struct gp_registry_context *reg_ctx,
+					  const DOM_SID *object_sid,
+					  struct nt_user_token **token,
+					  uint32_t flags)
+{
+	struct registry_key *key = NULL;
+	WERROR werr;
+	int i = 0;
+	const char *valname = NULL;
+	const char *val = NULL;
+	const char *path = NULL;
+	uint32_t count = 0;
+	int num_token_sids = 0;
+	struct nt_user_token *tmp_token = NULL;
+
+	tmp_token = TALLOC_ZERO_P(mem_ctx, struct nt_user_token);
+	W_ERROR_HAVE_NO_MEMORY(tmp_token);
+
+	path = gp_reg_groupmembership_path(mem_ctx, object_sid, flags);
+	W_ERROR_HAVE_NO_MEMORY(path);
+
+	werr = gp_read_reg_subkey(mem_ctx, reg_ctx, path, &key);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	werr = gp_read_reg_val_dword(mem_ctx, key, "Count", &count);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	for (i=0; i<count; i++) {
+
+		valname = talloc_asprintf(mem_ctx, "Group%d", i);
+		W_ERROR_HAVE_NO_MEMORY(valname);
+
+		werr = gp_read_reg_val_sz(mem_ctx, key, valname, &val);
+		W_ERROR_NOT_OK_RETURN(werr);
+
+		if (!string_to_sid(&tmp_token->user_sids[num_token_sids++],
+				   val)) {
+			return WERR_INSUFFICIENT_BUFFER;
+		}
+	}
+
+	tmp_token->num_sids = num_token_sids;
+
+	*token = tmp_token;
+
+	return WERR_OK;
+}
+#endif
+/****************************************************************
+****************************************************************/
+
+static const char *gp_req_state_path(TALLOC_CTX *mem_ctx,
+				     const DOM_SID *sid,
+				     uint32_t flags)
+{
+	if (flags & GPO_LIST_FLAG_MACHINE) {
+		return GPO_REG_STATE_MACHINE;
+	}
+
+	return talloc_asprintf(mem_ctx, "%s\\%s", "State", sid_string_tos(sid));
+}
+
+/****************************************************************
+****************************************************************/
+
+static WERROR gp_del_reg_state(TALLOC_CTX *mem_ctx,
+			       struct registry_key *key,
+			       const char *path)
+{
+	return reg_deletesubkeys_recursive(mem_ctx, key, path);
+}
+
+/****************************************************************
+****************************************************************/
+
+WERROR gp_reg_state_store(TALLOC_CTX *mem_ctx,
+			  uint32_t flags,
+			  const char *dn,
+			  const struct nt_user_token *token,
+			  struct GROUP_POLICY_OBJECT *gpo_list)
+{
+	struct gp_registry_context *reg_ctx = NULL;
+	WERROR werr = WERR_GENERAL_FAILURE;
+	const char *subkeyname = NULL;
+	struct GROUP_POLICY_OBJECT *gpo;
+	int count = 0;
+	struct registry_key *key;
+
+	werr = gp_init_reg_ctx(mem_ctx, KEY_GROUP_POLICY, REG_KEY_WRITE,
+			       token, &reg_ctx);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	werr = gp_secure_key(mem_ctx, flags, KEY_GROUP_POLICY,
+			     &token->user_sids[0]);
+	if (!W_ERROR_IS_OK(werr)) {
+		DEBUG(0,("failed to secure key: %s\n", dos_errstr(werr)));
+		goto done;
+	}
+
+	werr = gp_reg_store_groupmembership(mem_ctx, reg_ctx, token, flags);
+	if (!W_ERROR_IS_OK(werr)) {
+		DEBUG(0,("failed to store group membership: %s\n", dos_errstr(werr)));
+		goto done;
+	}
+
+	subkeyname = gp_req_state_path(mem_ctx, &token->user_sids[0], flags);
+	if (!subkeyname) {
+		werr = WERR_NOMEM;
+		goto done;
+	}
+
+	werr = gp_del_reg_state(mem_ctx, reg_ctx->curr_key, subkeyname);
+	if (!W_ERROR_IS_OK(werr)) {
+		DEBUG(0,("failed to delete old state: %s\n", dos_errstr(werr)));
+		/* goto done; */
+	}
+
+	werr = gp_store_reg_subkey(mem_ctx, subkeyname,
+				   reg_ctx->curr_key, &reg_ctx->curr_key);
+	if (!W_ERROR_IS_OK(werr)) {
+		goto done;
+	}
+
+	werr = gp_store_reg_val_sz(mem_ctx, reg_ctx->curr_key,
+				   "Distinguished-Name", dn);
+	if (!W_ERROR_IS_OK(werr)) {
+		goto done;
+	}
+
+	/* store link list */
+
+	werr = gp_store_reg_subkey(mem_ctx, "GPLink-List",
+				   reg_ctx->curr_key, &key);
+	if (!W_ERROR_IS_OK(werr)) {
+		goto done;
+	}
+
+	/* store gpo list */
+
+	werr = gp_store_reg_subkey(mem_ctx, "GPO-List",
+				   reg_ctx->curr_key, &reg_ctx->curr_key);
+	if (!W_ERROR_IS_OK(werr)) {
+		goto done;
+	}
+
+	for (gpo = gpo_list; gpo; gpo = gpo->next) {
+
+		subkeyname = talloc_asprintf(mem_ctx, "%d", count++);
+		if (!subkeyname) {
+			werr = WERR_NOMEM;
+			goto done;
+		}
+
+		werr = gp_store_reg_subkey(mem_ctx, subkeyname,
+					   reg_ctx->curr_key, &key);
+		if (!W_ERROR_IS_OK(werr)) {
+			goto done;
+		}
+
+		werr = gp_store_reg_gpovals(mem_ctx, key, gpo);
+		if (!W_ERROR_IS_OK(werr)) {
+			DEBUG(0,("gp_reg_state_store: "
+				"gpo_store_reg_gpovals failed for %s: %s\n",
+				gpo->display_name, dos_errstr(werr)));
+			goto done;
+		}
+	}
+ done:
+	gp_free_reg_ctx(reg_ctx);
+	return werr;
+}
+
+/****************************************************************
+****************************************************************/
+
+static WERROR gp_read_reg_gpovals(TALLOC_CTX *mem_ctx,
+				  struct registry_key *key,
+				  struct GROUP_POLICY_OBJECT *gpo)
+{
+	WERROR werr;
+
+	if (!key || !gpo) {
+		return WERR_INVALID_PARAM;
+	}
+
+	werr = gp_read_reg_val_dword(mem_ctx, key, "Version",
+				     &gpo->version);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	werr = gp_read_reg_val_dword(mem_ctx, key, "Options",
+				     &gpo->options);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	werr = gp_read_reg_val_sz(mem_ctx, key, "GPOID",
+				  &gpo->name);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	werr = gp_read_reg_val_sz(mem_ctx, key, "SOM",
+				  &gpo->link);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	werr = gp_read_reg_val_sz(mem_ctx, key, "DisplayName",
+				  &gpo->display_name);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	return werr;
+}
+
+/****************************************************************
+****************************************************************/
+
+static WERROR gp_read_reg_gpo(TALLOC_CTX *mem_ctx,
+			      struct registry_key *key,
+			      struct GROUP_POLICY_OBJECT **gpo_ret)
+{
+	struct GROUP_POLICY_OBJECT *gpo = NULL;
+	WERROR werr;
+
+	if (!gpo_ret || !key) {
+		return WERR_INVALID_PARAM;
+	}
+
+	gpo = TALLOC_ZERO_P(mem_ctx, struct GROUP_POLICY_OBJECT);
+	W_ERROR_HAVE_NO_MEMORY(gpo);
+
+	werr = gp_read_reg_gpovals(mem_ctx, key, gpo);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	*gpo_ret = gpo;
+
+	return werr;
+}
+
+/****************************************************************
+****************************************************************/
+
+WERROR gp_reg_state_read(TALLOC_CTX *mem_ctx,
+			 uint32_t flags,
+			 const DOM_SID *sid,
+			 struct GROUP_POLICY_OBJECT **gpo_list)
+{
+	struct gp_registry_context *reg_ctx = NULL;
+	WERROR werr = WERR_GENERAL_FAILURE;
+	const char *subkeyname = NULL;
+	struct GROUP_POLICY_OBJECT *gpo = NULL;
+	int count = 0;
+	struct registry_key *key = NULL;
+	const char *path = NULL;
+	const char *gp_state_path = NULL;
+
+	if (!gpo_list) {
+		return WERR_INVALID_PARAM;
+	}
+
+	ZERO_STRUCTP(gpo_list);
+
+	gp_state_path = gp_req_state_path(mem_ctx, sid, flags);
+	if (!gp_state_path) {
+		werr = WERR_NOMEM;
+		goto done;
+	}
+
+	path = talloc_asprintf(mem_ctx, "%s\\%s\\%s",
+			       KEY_GROUP_POLICY,
+			       gp_state_path,
+			       "GPO-List");
+	if (!path) {
+		werr = WERR_NOMEM;
+		goto done;
+	}
+
+	werr = gp_init_reg_ctx(mem_ctx, path, REG_KEY_READ, NULL, &reg_ctx);
+	if (!W_ERROR_IS_OK(werr)) {
+		goto done;
+	}
+
+	while (1) {
+
+		subkeyname = talloc_asprintf(mem_ctx, "%d", count++);
+		if (!subkeyname) {
+			werr = WERR_NOMEM;
+			goto done;
+		}
+
+		werr = gp_read_reg_subkey(mem_ctx, reg_ctx, subkeyname, &key);
+		if (W_ERROR_EQUAL(werr, WERR_BADFILE)) {
+			werr = WERR_OK;
+			break;
+		}
+		if (!W_ERROR_IS_OK(werr)) {
+			DEBUG(0,("gp_reg_state_read: "
+				"gp_read_reg_subkey gave: %s\n",
+				dos_errstr(werr)));
+			goto done;
+		}
+
+		werr = gp_read_reg_gpo(mem_ctx, key, &gpo);
+		if (!W_ERROR_IS_OK(werr)) {
+			goto done;
+		}
+
+		DLIST_ADD(*gpo_list, gpo);
+	}
+
+ done:
+	gp_free_reg_ctx(reg_ctx);
+	return werr;
+}
+
+/****************************************************************
+****************************************************************/
+
+static WERROR gp_reg_generate_sd(TALLOC_CTX *mem_ctx,
+				 const DOM_SID *sid,
+				 struct security_descriptor **sd,
+				 size_t *sd_size)
+{
+	SEC_ACE ace[6];
+	SEC_ACCESS mask;
+
+	SEC_ACL *acl = NULL;
+
+	uint8_t inherit_flags;
+
+	init_sec_access(&mask, REG_KEY_ALL);
+	init_sec_ace(&ace[0],
+		     &global_sid_System,
+		     SEC_ACE_TYPE_ACCESS_ALLOWED,
+		     mask, 0);
+
+	init_sec_access(&mask, REG_KEY_ALL);
+	init_sec_ace(&ace[1],
+		     &global_sid_Builtin_Administrators,
+		     SEC_ACE_TYPE_ACCESS_ALLOWED,
+		     mask, 0);
+
+	init_sec_access(&mask, REG_KEY_READ);
+	init_sec_ace(&ace[2],
+		     sid ? sid : &global_sid_Authenticated_Users,
+		     SEC_ACE_TYPE_ACCESS_ALLOWED,
+		     mask, 0);
+
+	inherit_flags = SEC_ACE_FLAG_OBJECT_INHERIT |
+			SEC_ACE_FLAG_CONTAINER_INHERIT |
+			SEC_ACE_FLAG_INHERIT_ONLY;
+
+	init_sec_access(&mask, REG_KEY_ALL);
+	init_sec_ace(&ace[3],
+		     &global_sid_System,
+		     SEC_ACE_TYPE_ACCESS_ALLOWED,
+		     mask, inherit_flags);
+
+	init_sec_access(&mask, REG_KEY_ALL);
+	init_sec_ace(&ace[4],
+		     &global_sid_Builtin_Administrators,
+		     SEC_ACE_TYPE_ACCESS_ALLOWED,
+		     mask, inherit_flags);
+
+	init_sec_access(&mask, REG_KEY_READ);
+	init_sec_ace(&ace[5],
+		     sid ? sid : &global_sid_Authenticated_Users,
+		     SEC_ACE_TYPE_ACCESS_ALLOWED,
+		     mask, inherit_flags);
+
+	acl = make_sec_acl(mem_ctx, NT4_ACL_REVISION, 6, ace);
+	W_ERROR_HAVE_NO_MEMORY(acl);
+
+	*sd = make_sec_desc(mem_ctx, SEC_DESC_REVISION,
+			    SEC_DESC_SELF_RELATIVE |
+			    SEC_DESC_DACL_AUTO_INHERITED | /* really ? */
+			    SEC_DESC_DACL_AUTO_INHERIT_REQ, /* really ? */
+			    NULL, NULL, NULL,
+			    acl, sd_size);
+	W_ERROR_HAVE_NO_MEMORY(*sd);
+
+	return WERR_OK;
+}
+
+/****************************************************************
+****************************************************************/
+
+WERROR gp_secure_key(TALLOC_CTX *mem_ctx,
+		     uint32_t flags,
+		     const char *key,
+		     const DOM_SID *sid)
+{
+	struct security_descriptor *sd = NULL;
+	size_t sd_size = 0;
+	const DOM_SID *sd_sid = NULL;
+	WERROR werr;
+
+	if (!(flags & GPO_LIST_FLAG_MACHINE)) {
+		sd_sid = sid;
+	}
+
+	werr = gp_reg_generate_sd(mem_ctx, sd_sid, &sd, &sd_size);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	return gp_reg_set_secdesc(key, sd);
+}
+
+/****************************************************************
+****************************************************************/
+
+void dump_reg_val(int lvl, const char *direction,
+		  const char *key, const char *subkey,
+		  struct registry_value *val)
+{
+	int i = 0;
+	const char *type_str = NULL;
+
+	if (!val) {
+		DEBUG(lvl,("no val!\n"));
+		return;
+	}
+
+	type_str = reg_type_lookup(val->type);
+
+	DEBUG(lvl,("\tdump_reg_val: %s '%s' '%s' %s: ",
+		direction, key, subkey, type_str));
+
+	switch (val->type) {
+		case REG_DWORD:
+			DEBUG(lvl,("%d\n", (int)val->v.dword));
+			break;
+		case REG_QWORD:
+			DEBUG(lvl,("%d\n", (int)val->v.qword));
+			break;
+		case REG_SZ:
+			DEBUG(lvl,("%s (length: %d)\n",
+				   val->v.sz.str,
+				   (int)val->v.sz.len));
+			break;
+		case REG_MULTI_SZ:
+			DEBUG(lvl,("(num_strings: %d)\n",
+				   val->v.multi_sz.num_strings));
+			for (i=0; i < val->v.multi_sz.num_strings; i++) {
+				DEBUGADD(lvl,("\t%s\n",
+					val->v.multi_sz.strings[i]));
+			}
+			break;
+		case REG_NONE:
+			DEBUG(lvl,("\n"));
+			break;
+		case REG_BINARY:
+			dump_data(lvl, val->v.binary.data,
+				  val->v.binary.length);
+			break;
+		default:
+			DEBUG(lvl,("unsupported type: %d\n", val->type));
+			break;
+	}
+}
+
+/****************************************************************
+****************************************************************/
+
+void dump_reg_entry(uint32_t flags,
+		    const char *dir,
+		    struct gp_registry_entry *entry)
+{
+	if (!(flags & GPO_INFO_FLAG_VERBOSE))
+		return;
+
+	dump_reg_val(1, dir,
+		     entry->key,
+		     entry->value,
+		     entry->data);
+}
+
+/****************************************************************
+****************************************************************/
+
+void dump_reg_entries(uint32_t flags,
+		      const char *dir,
+		      struct gp_registry_entry *entries,
+		      size_t num_entries)
+{
+	size_t i;
+
+	if (!(flags & GPO_INFO_FLAG_VERBOSE))
+		return;
+
+	for (i=0; i < num_entries; i++) {
+		dump_reg_entry(flags, dir, &entries[i]);
+	}
+}
+
+/****************************************************************
+****************************************************************/
+
+bool add_gp_registry_entry_to_array(TALLOC_CTX *mem_ctx,
+				    struct gp_registry_entry *entry,
+				    struct gp_registry_entry **entries,
+				    size_t *num)
+{
+	*entries = TALLOC_REALLOC_ARRAY(mem_ctx, *entries,
+					struct gp_registry_entry,
+					(*num)+1);
+
+	if (*entries == NULL) {
+		*num = 0;
+		return false;
+	}
+
+	(*entries)[*num].action = entry->action;
+	(*entries)[*num].key = entry->key;
+	(*entries)[*num].value = entry->value;
+	(*entries)[*num].data = entry->data;
+
+	*num += 1;
+	return true;
+}
+
+/****************************************************************
+****************************************************************/
+
+static const char *gp_reg_action_str(enum gp_reg_action action)
+{
+	switch (action) {
+		case GP_REG_ACTION_NONE:
+			return "GP_REG_ACTION_NONE";
+		case GP_REG_ACTION_ADD_VALUE:
+			return "GP_REG_ACTION_ADD_VALUE";
+		case GP_REG_ACTION_ADD_KEY:
+			return "GP_REG_ACTION_ADD_KEY";
+		case GP_REG_ACTION_DEL_VALUES:
+			return "GP_REG_ACTION_DEL_VALUES";
+		case GP_REG_ACTION_DEL_VALUE:
+			return "GP_REG_ACTION_DEL_VALUE";
+		case GP_REG_ACTION_DEL_ALL_VALUES:
+			return "GP_REG_ACTION_DEL_ALL_VALUES";
+		case GP_REG_ACTION_DEL_KEYS:
+			return "GP_REG_ACTION_DEL_KEYS";
+		case GP_REG_ACTION_SEC_KEY_SET:
+			return "GP_REG_ACTION_SEC_KEY_SET";
+		case GP_REG_ACTION_SEC_KEY_RESET:
+			return "GP_REG_ACTION_SEC_KEY_RESET";
+		default:
+			return "unknown";
+	}
+};
+
+/****************************************************************
+****************************************************************/
+
+WERROR reg_apply_registry_entry(TALLOC_CTX *mem_ctx,
+				struct registry_key *root_key,
+				struct gp_registry_context *reg_ctx,
+				struct gp_registry_entry *entry,
+				const struct nt_user_token *token,
+				uint32_t flags)
+{
+	WERROR werr;
+	struct registry_key *key = NULL;
+
+	if (flags & GPO_INFO_FLAG_VERBOSE) {
+		printf("about to store key:    [%s]\n", entry->key);
+		printf("               value:  [%s]\n", entry->value);
+		printf("               data:   [%s]\n", reg_type_lookup(entry->data->type));
+		printf("               action: [%s]\n", gp_reg_action_str(entry->action));
+	}
+
+	werr = gp_store_reg_subkey(mem_ctx, entry->key,
+				   root_key, &key);
+				   /* reg_ctx->curr_key, &key); */
+	if (!W_ERROR_IS_OK(werr)) {
+		DEBUG(0,("gp_store_reg_subkey failed: %s\n", dos_errstr(werr)));
+		return werr;
+	}
+
+	switch (entry->action) {
+		case GP_REG_ACTION_NONE:
+		case GP_REG_ACTION_ADD_KEY:
+			return WERR_OK;
+
+		case GP_REG_ACTION_SEC_KEY_SET:
+			werr = gp_secure_key(mem_ctx, flags,
+					     entry->key,
+					     &token->user_sids[0]);
+			if (!W_ERROR_IS_OK(werr)) {
+				DEBUG(0,("reg_apply_registry_entry: "
+					"gp_secure_key failed: %s\n",
+					dos_errstr(werr)));
+				return werr;
+			}
+			break;
+		case GP_REG_ACTION_ADD_VALUE:
+			werr = reg_setvalue(key, entry->value, entry->data);
+			if (!W_ERROR_IS_OK(werr)) {
+				DEBUG(0,("reg_apply_registry_entry: "
+					"reg_setvalue failed: %s\n",
+					dos_errstr(werr)));
+				dump_reg_entry(flags, "STORE", entry);
+				return werr;
+			}
+			break;
+		case GP_REG_ACTION_DEL_VALUE:
+			werr = reg_deletevalue(key, entry->value);
+			if (!W_ERROR_IS_OK(werr)) {
+				DEBUG(0,("reg_apply_registry_entry: "
+					"reg_deletevalue failed: %s\n",
+					dos_errstr(werr)));
+				dump_reg_entry(flags, "STORE", entry);
+				return werr;
+			}
+			break;
+		case GP_REG_ACTION_DEL_ALL_VALUES:
+			werr = reg_deleteallvalues(key);
+			if (!W_ERROR_IS_OK(werr)) {
+				DEBUG(0,("reg_apply_registry_entry: "
+					"reg_deleteallvalues failed: %s\n",
+					dos_errstr(werr)));
+				dump_reg_entry(flags, "STORE", entry);
+				return werr;
+			}
+			break;
+		case GP_REG_ACTION_DEL_VALUES:
+		case GP_REG_ACTION_DEL_KEYS:
+		case GP_REG_ACTION_SEC_KEY_RESET:
+			DEBUG(0,("reg_apply_registry_entry: "
+				"not yet supported: %s (%d)\n",
+				gp_reg_action_str(entry->action),
+				entry->action));
+			return WERR_NOT_SUPPORTED;
+		default:
+			DEBUG(0,("invalid action: %d\n", entry->action));
+			return WERR_INVALID_PARAM;
+	}
+
+	return werr;
+}
+