gpo: add scripts plugin.

Guenther
(This used to be commit cd6388f04041a667bf0909d81e8af5f7b3bdc4af)

1 files changed, 443 insertions, 0 deletions

diff --git a/source3/libgpo/gpext/scripts.c b/source3/libgpo/gpext/scripts.c
new file mode 100644
index 0000000000..c07407c3f0
--- /dev/null
+++ b/source3/libgpo/gpext/scripts.c
@@ -0,0 +1,443 @@
+/*
+ *  Unix SMB/CIFS implementation.
+ *  Group Policy Support
+ *  Copyright (C) Guenther Deschner 2007
+ *
+ *  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"
+#include "libgpo/gpo_ini.h"
+
+#define GP_EXT_NAME "scripts"
+
+#define KEY_GP_SCRIPTS "Software\\Policies\\Microsoft\\Windows\\System\\Scripts"
+
+#define GP_SCRIPTS_INI "Scripts/scripts.ini"
+
+#define GP_SCRIPTS_INI_STARTUP "Startup"
+#define GP_SCRIPTS_INI_SHUTDOWN "Shutdown"
+#define GP_SCRIPTS_INI_LOGON "Logon"
+#define GP_SCRIPTS_INI_LOGOFF "Logoff"
+
+#define GP_SCRIPTS_SECTION_CMDLINE "cmdline"
+#define GP_SCRIPTS_SECTION_PARAMETERS "parameters"
+
+#define GP_SCRIPTS_REG_VAL_SCRIPT "Script"
+#define GP_SCRIPTS_REG_VAL_PARAMETERS "Parameters"
+#define GP_SCRIPTS_REG_VAL_EXECTIME "ExecTime"
+
+static TALLOC_CTX *ctx = NULL;
+
+/****************************************************************
+****************************************************************/
+
+static NTSTATUS scripts_get_reg_config(TALLOC_CTX *mem_ctx,
+				       struct gp_extension_reg_info **reg_info)
+{
+	NTSTATUS status;
+	struct gp_extension_reg_info *info = NULL;
+
+	struct gp_extension_reg_table table[] = {
+		{ "ProcessGroupPolicy", REG_SZ, "scripts_process_group_policy" },
+		{ "NoGPOListChanges", REG_DWORD, "1" },
+		{ "NoSlowLink", REG_DWORD, "1" },
+		{ "NotifyLinkTransition", REG_DWORD, "1" },
+		{ NULL, REG_NONE, NULL },
+	};
+
+	info = TALLOC_ZERO_P(mem_ctx, struct gp_extension_reg_info);
+	NT_STATUS_HAVE_NO_MEMORY(info);
+
+	status = gp_ext_info_add_entry(mem_ctx, GP_EXT_NAME,
+				       GP_EXT_GUID_SCRIPTS,
+				       table, info);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	*reg_info = info;
+
+	return NT_STATUS_OK;
+}
+
+/****************************************************************
+****************************************************************/
+
+static NTSTATUS generate_gp_registry_entry(TALLOC_CTX *mem_ctx,
+					   const char *key,
+					   const char *value,
+					   uint32_t data_type,
+					   const void *data_p,
+					   enum gp_reg_action action,
+					   struct gp_registry_entry **entry_out)
+{
+	struct gp_registry_entry *entry = NULL;
+	struct registry_value *data = NULL;
+
+	entry = TALLOC_ZERO_P(mem_ctx, struct gp_registry_entry);
+	NT_STATUS_HAVE_NO_MEMORY(entry);
+
+	data = TALLOC_ZERO_P(mem_ctx, struct registry_value);
+	NT_STATUS_HAVE_NO_MEMORY(data);
+
+	data->type = data_type;
+	switch (data->type) {
+		case REG_QWORD:
+			data->v.qword = (uint64_t)data_p;
+			break;
+		case REG_SZ:
+			data->v.sz.str = talloc_strdup(mem_ctx, (char *)data_p);
+			data->v.sz.len = strlen(data->v.sz.str);
+			break;
+		default:
+			return NT_STATUS_NOT_SUPPORTED;
+	}
+
+	entry->key = key;
+	entry->data = data;
+	entry->action = action;
+	entry->value = talloc_strdup(mem_ctx, value);
+	NT_STATUS_HAVE_NO_MEMORY(entry->value);
+
+	*entry_out = entry;
+
+	return NT_STATUS_OK;
+}
+
+/****************************************************************
+****************************************************************/
+
+static NTSTATUS scripts_parse_ini_section(struct gp_inifile_context *ini_ctx,
+					  uint32_t flags,
+					  const char *section,
+					  struct gp_registry_entry **entries,
+					  size_t *num_entries)
+{
+	NTSTATUS status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
+	int i = 0;
+
+	while (1) {
+
+		const char *key = NULL;
+		const char *script = NULL;
+		const char *count = NULL;
+		const char *parameters = NULL;
+
+		count = talloc_asprintf(ini_ctx->mem_ctx, "%d", i);
+		NT_STATUS_HAVE_NO_MEMORY(count);
+
+		key = talloc_asprintf(ini_ctx->mem_ctx, "%s:%s%s",
+				      section, count,
+				      GP_SCRIPTS_SECTION_CMDLINE);
+		NT_STATUS_HAVE_NO_MEMORY(key);
+
+		script = iniparser_getstring(ini_ctx->dict, key, NULL);
+		if (!script) {
+			break;
+		}
+
+		key = talloc_asprintf(ini_ctx->mem_ctx, "%s:%s%s",
+				      section, count,
+				      GP_SCRIPTS_SECTION_PARAMETERS);
+		NT_STATUS_HAVE_NO_MEMORY(key);
+
+		parameters = iniparser_getstring(ini_ctx->dict, key, NULL);
+
+		{
+			struct gp_registry_entry *entry = NULL;
+			status = generate_gp_registry_entry(ini_ctx->mem_ctx,
+							    count,
+							    GP_SCRIPTS_REG_VAL_SCRIPT,
+							    REG_SZ,
+							    script,
+							    GP_REG_ACTION_ADD_VALUE,
+							    &entry);
+			NT_STATUS_NOT_OK_RETURN(status);
+			if (!add_gp_registry_entry_to_array(ini_ctx->mem_ctx,
+							    entry,
+							    entries,
+							    num_entries)) {
+				return NT_STATUS_NO_MEMORY;
+			}
+		}
+		{
+			struct gp_registry_entry *entry = NULL;
+			status = generate_gp_registry_entry(ini_ctx->mem_ctx,
+							    count,
+							    GP_SCRIPTS_REG_VAL_PARAMETERS,
+							    REG_SZ,
+							    parameters,
+							    GP_REG_ACTION_ADD_VALUE,
+							    &entry);
+			NT_STATUS_NOT_OK_RETURN(status);
+			if (!add_gp_registry_entry_to_array(ini_ctx->mem_ctx,
+							    entry,
+							    entries,
+							    num_entries)) {
+				return NT_STATUS_NO_MEMORY;
+			}
+		}
+		{
+			struct gp_registry_entry *entry = NULL;
+			status = generate_gp_registry_entry(ini_ctx->mem_ctx,
+							    count,
+							    GP_SCRIPTS_REG_VAL_EXECTIME,
+							    REG_QWORD,
+							    0,
+							    GP_REG_ACTION_ADD_VALUE,
+							    &entry);
+			NT_STATUS_NOT_OK_RETURN(status);
+			if (!add_gp_registry_entry_to_array(ini_ctx->mem_ctx,
+							    entry,
+							    entries,
+							    num_entries)) {
+				return NT_STATUS_NO_MEMORY;
+			}
+		}
+		status = NT_STATUS_OK;
+		i++;
+	}
+
+	return status;
+}
+
+/****************************************************************
+****************************************************************/
+
+static WERROR scripts_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_sz(mem_ctx, key, "DisplayName",
+		gpo->display_name);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	werr = gp_store_reg_val_sz(mem_ctx, key, "FileSysPath",
+		gpo->file_sys_path);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	werr = gp_store_reg_val_sz(mem_ctx, key, "GPO-ID",
+		gpo->ds_path);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	werr = gp_store_reg_val_sz(mem_ctx, key, "GPOName",
+		gpo->name);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	werr = gp_store_reg_val_sz(mem_ctx, key, "SOM-ID",
+		gpo->link);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	return werr;
+}
+
+/****************************************************************
+****************************************************************/
+
+static WERROR scripts_apply(TALLOC_CTX *mem_ctx,
+			    const struct nt_user_token *token,
+			    struct registry_key *root_key,
+			    uint32_t flags,
+			    const char *section,
+			    struct GROUP_POLICY_OBJECT *gpo,
+			    struct gp_registry_entry *entries,
+			    size_t num_entries)
+{
+	struct gp_registry_context *reg_ctx = NULL;
+	WERROR werr;
+	size_t i;
+	const char *keystr = NULL;
+	int count = 0;
+
+	if (num_entries == 0) {
+		return WERR_OK;
+	}
+
+#if 0
+	if (flags & GPO_INFO_FLAG_MACHINE) {
+		struct nt_user_token *tmp_token;
+
+		tmp_token = registry_create_system_token(mem_ctx);
+		W_ERROR_HAVE_NO_MEMORY(tmp_token);
+
+		werr = gp_init_reg_ctx(mem_ctx, KEY_HKLM, REG_KEY_WRITE,
+				       tmp_token,
+				       &reg_ctx);
+	} else {
+		werr = gp_init_reg_ctx(mem_ctx, KEY_HKCU, REG_KEY_WRITE,
+				       token,
+				       &reg_ctx);
+	}
+	W_ERROR_NOT_OK_RETURN(werr);
+#endif
+
+	keystr = talloc_asprintf(mem_ctx, "%s\\%s\\%d", KEY_GP_SCRIPTS,
+				 section, count++);
+	W_ERROR_HAVE_NO_MEMORY(keystr);
+
+	reg_deletekey_recursive(mem_ctx, root_key, keystr);
+
+	werr = gp_store_reg_subkey(mem_ctx, keystr,
+				   root_key, &root_key);
+	if (!W_ERROR_IS_OK(werr)) {
+		goto done;
+	}
+
+	werr = scripts_store_reg_gpovals(mem_ctx, root_key, gpo);
+	if (!W_ERROR_IS_OK(werr)) {
+		goto done;
+	}
+
+	for (i=0; i<num_entries; i++) {
+
+		werr = reg_apply_registry_entry(mem_ctx, root_key, reg_ctx,
+						&(entries)[i],
+						token, flags);
+		if (!W_ERROR_IS_OK(werr)) {
+			DEBUG(0,("failed to apply registry: %s\n",
+				dos_errstr(werr)));
+			goto done;
+		}
+	}
+
+ done:
+	gp_free_reg_ctx(reg_ctx);
+	return werr;
+}
+
+/****************************************************************
+****************************************************************/
+
+static NTSTATUS scripts_process_group_policy(ADS_STRUCT *ads,
+					     TALLOC_CTX *mem_ctx,
+					     uint32_t flags,
+					     struct registry_key *root_key,
+					     const struct nt_user_token *token,
+					     struct GROUP_POLICY_OBJECT *gpo,
+					     const char *extension_guid,
+					     const char *snapin_guid)
+{
+	NTSTATUS status;
+	WERROR werr;
+	int i = 0;
+	char *unix_path = NULL;
+	struct gp_inifile_context *ini_ctx = NULL;
+	struct gp_registry_entry *entries = NULL;
+	size_t num_entries = 0;
+	const char *list[] = {
+		GP_SCRIPTS_INI_STARTUP,
+		GP_SCRIPTS_INI_SHUTDOWN,
+		GP_SCRIPTS_INI_LOGON,
+		GP_SCRIPTS_INI_LOGOFF
+	};
+
+	debug_gpext_header(0, "scripts_process_group_policy", flags, gpo,
+			   extension_guid, snapin_guid);
+
+	status = gpo_get_unix_path(mem_ctx, gpo, &unix_path);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	status = gp_inifile_init_context(mem_ctx, flags, unix_path,
+					 GP_SCRIPTS_INI, &ini_ctx);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	for (i = 0; i < ARRAY_SIZE(list); i++) {
+
+		TALLOC_FREE(entries);
+		num_entries = 0;
+
+		status = scripts_parse_ini_section(ini_ctx, flags, list[i],
+						   &entries, &num_entries);
+		if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
+			continue;
+		}
+
+		if (!NT_STATUS_IS_OK(status)) {
+			return status;
+		}
+
+		dump_reg_entries(flags, "READ", entries, num_entries);
+
+		werr = scripts_apply(ini_ctx->mem_ctx, token, root_key,
+				     flags, list[i], gpo, entries, num_entries);
+		if (!W_ERROR_IS_OK(werr)) {
+			continue; /* FIXME: finally fix storing emtpy strings and REG_QWORD! */
+			TALLOC_FREE(ini_ctx);
+			return werror_to_ntstatus(werr);
+		}
+	}
+
+	TALLOC_FREE(ini_ctx);
+	return NT_STATUS_OK;
+}
+
+/****************************************************************
+****************************************************************/
+
+static NTSTATUS scripts_initialize(TALLOC_CTX *mem_ctx)
+{
+	return NT_STATUS_OK;
+}
+
+/****************************************************************
+****************************************************************/
+
+static NTSTATUS scripts_shutdown(void)
+{
+	NTSTATUS status;
+
+	status = unregister_gp_extension(GP_EXT_NAME);
+	if (NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	TALLOC_FREE(ctx);
+
+	return NT_STATUS_OK;
+}
+
+/****************************************************************
+****************************************************************/
+
+static struct gp_extension_methods scripts_methods = {
+	.initialize		= scripts_initialize,
+	.process_group_policy	= scripts_process_group_policy,
+	.get_reg_config		= scripts_get_reg_config,
+	.shutdown		= scripts_shutdown
+};
+
+/****************************************************************
+****************************************************************/
+
+NTSTATUS gpext_scripts_init(void)
+{
+	NTSTATUS status;
+
+	ctx = talloc_init("gpext_scripts_init");
+	NT_STATUS_HAVE_NO_MEMORY(ctx);
+
+	status = register_gp_extension(ctx, SMB_GPEXT_INTERFACE_VERSION,
+				       GP_EXT_NAME, GP_EXT_GUID_SCRIPTS,
+				       &scripts_methods);
+	if (!NT_STATUS_IS_OK(status)) {
+		TALLOC_FREE(ctx);
+	}
+
+	return status;
+}