1 files changed, 297 insertions, 0 deletions
diff --git a/source3/libgpo/gpext/security.c b/source3/libgpo/gpext/security.c
new file mode 100644
index 0000000..a915eec
--- /dev/null
+++ b/source3/libgpo/gpext/security.c
@@ -0,0 +1,297 @@
+/*
+ *  Unix SMB/CIFS implementation.
+ *  Group Policy Support
+ *  Copyright (C) Guenther Deschner 2005-2008
+ *
+ *  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"
+#include "../libgpo/gpo_ini.h"
+#include "../libgpo/gpo.h"
+#include "libgpo/gpo_proto.h"
+#include "libgpo/gpext/gpext.h"
+
+#define GP_EXT_NAME "security"
+
+#define GPTTMPL_UNIX_PATH  "Microsoft/Windows NT/SecEdit/GptTmpl.inf"
+
+#define GPTTMPL_SECTION_UNICODE			"Unicode"
+#define GPTTMPL_SECTION_VERSION			"Version"
+
+#define GPTTMPL_SECTION_REGISTRY_VALUES		"Registry Values"
+#define GPTTMPL_SECTION_SYSTEM_ACCESS		"System Access"
+#define GPTTMPL_SECTION_KERBEROS_POLICY		"Kerberos Policy"
+#define GPTTMPL_SECTION_EVENT_AUDIT		"Event Audit"
+#define GPTTMPL_SECTION_PRIVILEGE_RIGHTS	"Privilege Rights"
+#define GPTTMPL_SECTION_APPLICATION_LOG		"Application Log"
+#define GPTTMPL_SECTION_SECURITY_LOG		"Security Log"
+#define GPTTMPL_SECTION_SYSTEM_LOG		"System Log"
+#define GPTTMPL_SECTION_GROUP_MEMBERSHIP	"Group Membership"
+#define GPTTMPL_SECTION_FILE_SECURITY		"File Security"
+#define GPTTMPL_SECTION_SERVICE_GENERAL_SETTING "Service General Setting"
+
+NTSTATUS gpext_security_init(TALLOC_CTX *mem_ctx);
+
+static TALLOC_CTX *ctx = NULL;
+
+struct gpttmpl_table {
+	const char *section;
+	const char *parameter;
+	enum winreg_Type type;
+};
+
+/****************************************************************
+ parse the Version section from gpttmpl file
+****************************************************************/
+
+#define GPTTMPL_PARAMETER_REVISION "Revision"
+#define GPTTMPL_PARAMETER_SIGNATURE "signature"
+#define GPTTMPL_VALUE_CHICAGO "\"$CHICAGO$\"" /* whatever this is good for... */
+#define GPTTMPL_PARAMETER_UNICODE "Unicode"
+
+static NTSTATUS gpttmpl_parse_header(struct gp_inifile_context *ini_ctx,
+				     uint32_t *version_out)
+{
+	const char *signature = NULL;
+	NTSTATUS result;
+	int version;
+	bool is_unicode = false;
+
+	if (!ini_ctx) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	result = gp_inifile_getstring(ini_ctx, GPTTMPL_SECTION_VERSION
+			":"GPTTMPL_PARAMETER_SIGNATURE, &signature);
+	if (!NT_STATUS_IS_OK(result)) {
+		return NT_STATUS_INTERNAL_DB_CORRUPTION;
+	}
+
+	if (!strequal(signature, GPTTMPL_VALUE_CHICAGO)) {
+		return NT_STATUS_INTERNAL_DB_CORRUPTION;
+	}
+	result = gp_inifile_getint(ini_ctx, GPTTMPL_SECTION_VERSION
+			":"GPTTMPL_PARAMETER_REVISION, &version);
+	if (!NT_STATUS_IS_OK(result)) {
+		return NT_STATUS_INTERNAL_DB_CORRUPTION;
+	}
+
+	if (version_out) {
+		*version_out = version;
+	}
+
+	result = gp_inifile_getbool(ini_ctx, GPTTMPL_SECTION_UNICODE
+			":"GPTTMPL_PARAMETER_UNICODE, &is_unicode);
+	if (!NT_STATUS_IS_OK(result) || !is_unicode) {
+		return NT_STATUS_INTERNAL_DB_CORRUPTION;
+	}
+
+	return NT_STATUS_OK;
+}
+
+/****************************************************************
+****************************************************************/
+
+static NTSTATUS gpttmpl_init_context(TALLOC_CTX *mem_ctx,
+				     uint32_t flags,
+				     const char *unix_path,
+				     struct gp_inifile_context **ini_ctx)
+{
+	NTSTATUS status;
+	uint32_t version;
+	struct gp_inifile_context *tmp_ctx = NULL;
+
+	status = gp_inifile_init_context(mem_ctx, flags, unix_path,
+					 GPTTMPL_UNIX_PATH, &tmp_ctx);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	status = gpttmpl_parse_header(tmp_ctx, &version);
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(1,("gpttmpl_init_context: failed: %s\n",
+			nt_errstr(status)));
+		TALLOC_FREE(tmp_ctx);
+		return status;
+	}
+
+	*ini_ctx = tmp_ctx;
+
+	return NT_STATUS_OK;
+}
+
+/****************************************************************
+****************************************************************/
+
+static NTSTATUS gpttmpl_process(struct gp_inifile_context *ini_ctx,
+				struct registry_key *root_key,
+				uint32_t flags)
+{
+	return NT_STATUS_OK;
+}
+
+/****************************************************************
+****************************************************************/
+
+static NTSTATUS security_process_group_policy(TALLOC_CTX *mem_ctx,
+					      uint32_t flags,
+					      struct registry_key *root_key,
+					      const struct security_token *token,
+					      const struct GROUP_POLICY_OBJECT *deleted_gpo_list,
+					      const struct GROUP_POLICY_OBJECT *changed_gpo_list)
+{
+	NTSTATUS status = NT_STATUS_OK;
+	char *unix_path = NULL;
+	struct gp_inifile_context *ini_ctx = NULL;
+	const struct GROUP_POLICY_OBJECT *gpo;
+	char *gpo_cache_path = cache_path(talloc_tos(), GPO_CACHE_DIR);
+	if (gpo_cache_path == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	/* implementation of the policy callback function, see
+	 * http://msdn.microsoft.com/en-us/library/aa373494%28v=vs.85%29.aspx
+	 * for details - gd */
+
+	/* for now do not process the list of deleted group policies
+
+	for (gpo = deleted_gpo_list; gpo; gpo = gpo->next) {
+	}
+
+	*/
+
+	for (gpo = changed_gpo_list; gpo; gpo = gpo->next) {
+
+		gpext_debug_header(0, "security_process_group_policy", flags,
+				   gpo, GP_EXT_GUID_SECURITY, NULL);
+
+		/* this handler processes the gpttmpl files and merge output to the
+		 * registry */
+
+		status = gpo_get_unix_path(mem_ctx, gpo_cache_path,
+					   gpo, &unix_path);
+		if (!NT_STATUS_IS_OK(status)) {
+			goto out;
+		}
+
+		status = gpttmpl_init_context(mem_ctx, flags, unix_path,
+					      &ini_ctx);
+		if (!NT_STATUS_IS_OK(status)) {
+			goto out;
+		}
+
+		status = gpttmpl_process(ini_ctx, root_key, flags);
+		if (!NT_STATUS_IS_OK(status)) {
+			goto out;
+		}
+
+		TALLOC_FREE(ini_ctx);
+	}
+
+ out:
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(0,("security_process_group_policy: %s\n",
+			nt_errstr(status)));
+	}
+	TALLOC_FREE(ini_ctx);
+	talloc_free(gpo_cache_path);
+
+	return status;
+}
+
+/****************************************************************
+****************************************************************/
+
+static NTSTATUS security_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[] = {
+		/* FIXME: how can we store the "(Default)" value ??? */
+		/* { "", REG_SZ, "Security" }, */
+		{ "ProcessGroupPolicy", REG_SZ, "security_process_group_policy" },
+		{ "NoUserPolicy", REG_DWORD, "1" },
+		{ "ExtensionDebugLevel", REG_DWORD, "1" },
+		{ NULL, REG_NONE, NULL }
+	};
+
+	info = talloc_zero(mem_ctx, struct gp_extension_reg_info);
+	NT_STATUS_HAVE_NO_MEMORY(info);
+
+	status = gpext_info_add_entry(mem_ctx, GP_EXT_NAME,
+				      GP_EXT_GUID_SECURITY,
+				      table, info);
+	NT_STATUS_NOT_OK_RETURN(status);
+
+	*reg_info = info;
+
+	return NT_STATUS_OK;
+}
+
+
+/****************************************************************
+****************************************************************/
+
+static NTSTATUS security_initialize(TALLOC_CTX *mem_ctx)
+{
+	return NT_STATUS_OK;
+}
+
+/****************************************************************
+****************************************************************/
+
+static NTSTATUS security_shutdown(void)
+{
+	NTSTATUS status;
+
+	status = gpext_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 security_methods = {
+	.initialize		= security_initialize,
+	.process_group_policy	= security_process_group_policy,
+	.get_reg_config		= security_get_reg_config,
+	.shutdown		= security_shutdown
+};
+
+/****************************************************************
+****************************************************************/
+
+NTSTATUS gpext_security_init(TALLOC_CTX *mem_ctx)
+{
+	NTSTATUS status;
+
+	ctx = talloc_init("gpext_security_init");
+	NT_STATUS_HAVE_NO_MEMORY(ctx);
+
+	status = gpext_register_gp_extension(ctx, SMB_GPEXT_INTERFACE_VERSION,
+					     GP_EXT_NAME, GP_EXT_GUID_SECURITY,
+					     &security_methods);
+	if (!NT_STATUS_IS_OK(status)) {
+		TALLOC_FREE(ctx);
+	}
+
+	return status;
+}