net: add a "net registry" subcommand to locally access the registry.

The interface is like that of net rpc registry.
Access is direct local access to the registry tdb through reg_api.

Michael
(This used to be commit 3250068eb980bd0489f814f702401cdc9c925a8d)

1 files changed, 530 insertions, 0 deletions

diff --git a/source3/utils/net_registry.c b/source3/utils/net_registry.c
new file mode 100644
index 00000000000..dfa35557b61
--- /dev/null
+++ b/source3/utils/net_registry.c
@@ -0,0 +1,530 @@
+/*
+ * Samba Unix/Linux SMB client library
+ * Distributed SMB/CIFS Server Management Utility
+ * Local registry interface
+ *
+ * Copyright (C) Michael Adam 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 "utils/net.h"
+
+
+/*
+ *
+ * Helper functions
+ *
+ */
+
+static void print_registry_key(const char *keyname, NTTIME *modtime)
+{
+	d_printf("Keyname   = %s\n", keyname);
+	d_printf("Modtime   = %s\n",
+		 modtime
+		 ? http_timestring(nt_time_to_unix(*modtime))
+		 : "None");
+	d_printf("\n");
+}
+
+static void print_registry_value(const char *valname,
+				 const struct registry_value *valvalue)
+{
+	d_printf("Valuename  = %s\n", valname);
+	d_printf("Type       = %s\n",
+		 reg_type_lookup(valvalue->type));
+	switch(valvalue->type) {
+	case REG_DWORD:
+		d_printf("Value      = %d\n", valvalue->v.dword);
+		break;
+	case REG_SZ:
+	case REG_EXPAND_SZ:
+		d_printf("Value      = \"%s\"\n", valvalue->v.sz.str);
+		break;
+	case REG_MULTI_SZ: {
+		uint32 j;
+		for (j = 0; j < valvalue->v.multi_sz.num_strings; j++) {
+			d_printf("Value[%3.3d] = \"%s\"\n", j,
+				 valvalue->v.multi_sz.strings[j]);
+		}
+		break;
+	}
+	case REG_BINARY:
+		d_printf("Value      = %d bytes\n",
+			 (int)valvalue->v.binary.length);
+		break;
+	default:
+		d_printf("Value      = <unprintable>\n");
+		break;
+	}
+	d_printf("\n");
+}
+
+/**
+ * Split path into hive name and subkeyname
+ * normalizations performed:
+ *  - convert '/' to '\\'
+ *  - strip trailing '\\' chars
+ */
+static WERROR split_hive_key(TALLOC_CTX *ctx, const char *path,
+			     char **hivename, const char **subkeyname)
+{
+	char *p;
+
+	if ((path == NULL) || (hivename == NULL) || (subkeyname == NULL)) {
+		return WERR_INVALID_PARAM;
+	}
+
+	if (strlen(path) == 0) {
+		return WERR_INVALID_PARAM;
+	}
+
+	*hivename = talloc_string_sub(ctx, path, "/", "\\");
+	if (*hivename == NULL) {
+		return WERR_NOMEM;
+	}
+
+	/* strip trailing '\\' chars */
+	p = strrchr(*hivename, '\\');
+	while ((p != NULL) && (p[1] == '\0')) {
+		*p = '\0';
+		p = strrchr(*hivename, '\\');
+	}
+
+	p = strchr(*hivename, '\\');
+
+	if ((p == NULL) || (*p == '\0')) {
+		/* just the hive - no subkey given */
+		*subkeyname = "";
+	} else {
+		*p = '\0';
+		*subkeyname = p+1;
+	}
+
+	return WERR_OK;
+}
+
+/**
+ * split given path into hive and remaining path and open the hive key
+ */
+static WERROR open_hive(TALLOC_CTX *ctx, const char *path,
+			uint32 desired_access,
+			struct registry_key **hive,
+			char **subkeyname)
+{
+	WERROR werr;
+	NT_USER_TOKEN *token = NULL;
+	char *hivename = NULL;
+	const char *tmp_subkeyname = NULL;
+	TALLOC_CTX *tmp_ctx = talloc_stackframe();
+
+	if ((hive == NULL) || (subkeyname == NULL)) {
+		werr = WERR_INVALID_PARAM;
+		goto done;
+	}
+
+	werr = split_hive_key(tmp_ctx, path, &hivename, &tmp_subkeyname);
+	if (!W_ERROR_IS_OK(werr)) {
+		goto done;
+	}
+	*subkeyname = talloc_strdup(ctx, tmp_subkeyname);
+	if (*subkeyname == NULL) {
+		werr = WERR_NOMEM;
+		goto done;
+	}
+
+	werr = ntstatus_to_werror(registry_create_admin_token(tmp_ctx, &token));
+	if (!W_ERROR_IS_OK(werr)) {
+		goto done;
+	}
+
+	werr = reg_openhive(ctx, hivename, desired_access, token, hive);
+	if (!W_ERROR_IS_OK(werr)) {
+		goto done;
+	}
+
+	werr = WERR_OK;
+
+done:
+	TALLOC_FREE(tmp_ctx);
+	return werr;
+}
+
+static WERROR open_key(TALLOC_CTX *ctx, const char *path,
+		       uint32 desired_access,
+		       struct registry_key **key)
+{
+	WERROR werr;
+	char *subkey_name = NULL;
+	struct registry_key *hive = NULL;
+	TALLOC_CTX *tmp_ctx = talloc_stackframe();
+
+	if ((path == NULL) || (key == NULL)) {
+		return WERR_INVALID_PARAM;
+	}
+
+	werr = open_hive(tmp_ctx, path, desired_access, &hive, &subkey_name);
+	if (!W_ERROR_IS_OK(werr)) {
+		d_fprintf(stderr, "open_hive failed: %s\n", dos_errstr(werr));
+		goto done;
+	}
+
+	werr = reg_openkey(ctx, hive, subkey_name, desired_access, key);
+	if (!W_ERROR_IS_OK(werr)) {
+		d_fprintf(stderr, "reg_openkey failed: %s\n",
+			  dos_errstr(werr));
+		goto done;
+	}
+
+	werr = WERR_OK;
+
+done:
+	TALLOC_FREE(tmp_ctx);
+	return werr;
+}
+
+/*
+ *
+ * the main "net registry" function implementations
+ *
+ */
+
+static int net_registry_enumerate(int argc, const char **argv)
+{
+	WERROR werr;
+	struct registry_key *key = NULL;
+	TALLOC_CTX *ctx = talloc_stackframe();
+	char *subkey_name;
+	NTTIME *modtime;
+	uint32_t count;
+	char *valname = NULL;
+	struct registry_value *valvalue = NULL;
+	int ret = -1;
+
+	if (argc != 1) {
+		d_printf("Usage:    net registry enumerate <path>\n");
+		d_printf("Example:  net registry enumerate "
+			 "'HKLM\\Software\\Samba'\n");
+		goto done;
+	}
+
+	werr = open_key(ctx, argv[0], REG_KEY_READ, &key);
+	if (!W_ERROR_IS_OK(werr)) {
+		d_fprintf(stderr, "open_key failed: %s\n", dos_errstr(werr));
+		goto done;
+	}
+
+	for (count = 0;
+	     werr = reg_enumkey(ctx, key, count, &subkey_name, modtime),
+	     W_ERROR_IS_OK(werr);
+	     count++)
+	{
+		print_registry_key(subkey_name, modtime);
+	}
+	if (!W_ERROR_EQUAL(WERR_NO_MORE_ITEMS, werr)) {
+		goto done;
+	}
+
+	for (count = 0;
+	     werr = reg_enumvalue(ctx, key, count, &valname, &valvalue),
+	     W_ERROR_IS_OK(werr);
+	     count++)
+	{
+		print_registry_value(valname, valvalue);
+	}
+	if (!W_ERROR_EQUAL(WERR_NO_MORE_ITEMS, werr)) {
+		goto done;
+	}
+
+	ret = 0;
+done:
+	TALLOC_FREE(ctx);
+	return ret;
+}
+
+static int net_registry_createkey(int argc, const char **argv)
+{
+	WERROR werr;
+	enum winreg_CreateAction action;
+	char *subkeyname;
+	struct registry_key *hivekey = NULL;
+	struct registry_key *subkey = NULL;
+	TALLOC_CTX *ctx = talloc_stackframe();
+	int ret = -1;
+
+	if (argc != 1) {
+		d_printf("Usage:    net registry createkey <path>\n");
+		d_printf("Example:  net registry createkey "
+			 "'HKLM\\Software\\Samba\\smbconf.127.0.0.1'\n");
+		goto done;
+	}
+	if (strlen(argv[0]) == 0) {
+		d_fprintf(stderr, "error: zero length key name given\n");
+		goto done;
+	}
+
+	werr = open_hive(ctx, argv[0], REG_KEY_WRITE, &hivekey, &subkeyname);
+	if (!W_ERROR_IS_OK(werr)) {
+		d_fprintf(stderr, "open_hive failed: %s\n", dos_errstr(werr));
+		goto done;
+	}
+
+	werr = reg_createkey(ctx, hivekey, subkeyname, REG_KEY_WRITE,
+			     &subkey, &action);
+	if (!W_ERROR_IS_OK(werr)) {
+		d_fprintf(stderr, "reg_createkey failed: %s\n",
+			  dos_errstr(werr));
+		goto done;
+	}
+	switch (action) {
+		case REG_ACTION_NONE:
+			d_printf("createkey did nothing -- huh?\n");
+			break;
+		case REG_CREATED_NEW_KEY:
+			d_printf("createkey created %s\n", argv[0]);
+			break;
+		case REG_OPENED_EXISTING_KEY:
+			d_printf("createkey opened existing %s\n", argv[0]);
+			break;
+	}
+
+	ret = 0;
+
+done:
+	TALLOC_FREE(ctx);
+	return ret;
+}
+
+static int net_registry_deletekey(int argc, const char **argv)
+{
+	WERROR werr;
+	char *subkeyname;
+	struct registry_key *hivekey = NULL;
+	TALLOC_CTX *ctx = talloc_stackframe();
+	int ret = -1;
+
+	if (argc != 1) {
+		d_printf("Usage:    net registry deletekey <path>\n");
+		d_printf("Example:  net registry deletekey "
+			 "'HKLM\\Software\\Samba\\smbconf.127.0.0.1'\n");
+		goto done;
+	}
+	if (strlen(argv[0]) == 0) {
+		d_fprintf(stderr, "error: zero length key name given\n");
+		goto done;
+	}
+
+	werr = open_hive(ctx, argv[0], REG_KEY_WRITE, &hivekey, &subkeyname);
+	if (!W_ERROR_IS_OK(werr)) {
+		d_fprintf(stderr, "open_hive failed: %s\n", dos_errstr(werr));
+		goto done;
+	}
+
+	werr = reg_deletekey(hivekey, subkeyname);
+	if (!W_ERROR_IS_OK(werr)) {
+		d_fprintf(stderr, "reg_deletekey failed: %s\n",
+			  dos_errstr(werr));
+		goto done;
+	}
+
+	ret = 0;
+
+done:
+	TALLOC_FREE(ctx);
+	return ret;
+}
+
+static int net_registry_setvalue(int argc, const char **argv)
+{
+	WERROR werr;
+	struct registry_value value;
+	struct registry_key *key = NULL;
+	int ret = -1;
+	TALLOC_CTX *ctx = talloc_stackframe();
+
+	if (argc < 4) {
+		d_fprintf(stderr, "usage: net rpc registry setvalue <key> "
+			  "<valuename> <type> [<val>]+\n");
+		goto done;
+	}
+
+	if (!strequal(argv[2], "multi_sz") && (argc != 4)) {
+		d_fprintf(stderr, "Too many args for type %s\n", argv[2]);
+		goto done;
+	}
+
+	if (strequal(argv[2], "dword")) {
+		value.type = REG_DWORD;
+		value.v.dword = strtoul(argv[3], NULL, 10);
+	} else if (strequal(argv[2], "sz")) {
+		value.type = REG_SZ;
+		value.v.sz.len = strlen(argv[3])+1;
+		value.v.sz.str = CONST_DISCARD(char *, argv[3]);
+	} else {
+		d_fprintf(stderr, "type \"%s\" not implemented\n", argv[2]);
+		goto done;
+	}
+
+	werr = open_key(ctx, argv[0], REG_KEY_WRITE, &key);
+	if (!W_ERROR_IS_OK(werr)) {
+		d_fprintf(stderr, "open_key failed: %s\n", dos_errstr(werr));
+		goto done;
+	}
+
+	werr = reg_setvalue(key, argv[1], &value);
+	if (!W_ERROR_IS_OK(werr)) {
+		d_fprintf(stderr, "reg_setvalue failed: %s\n",
+			  dos_errstr(werr));
+		goto done;
+	}
+
+	ret = 0;
+
+done:
+	TALLOC_FREE(ctx);
+	return ret;
+}
+
+static int net_registry_deletevalue(int argc, const char **argv)
+{
+	WERROR werr;
+	struct registry_key *key = NULL;
+	TALLOC_CTX *ctx = talloc_stackframe();
+	int ret = -1;
+
+	if (argc != 2) {
+		d_fprintf(stderr, "usage: net rpc registry deletevalue <key> "
+			  "<valuename>\n");
+		goto done;
+	}
+
+	werr = open_key(ctx, argv[0], REG_KEY_WRITE, &key);
+	if (!W_ERROR_IS_OK(werr)) {
+		d_fprintf(stderr, "open_key failed: %s\n", dos_errstr(werr));
+		goto done;
+	}
+
+	werr = reg_deletevalue(key, argv[1]);
+	if (!W_ERROR_IS_OK(werr)) {
+		d_fprintf(stderr, "reg_deletekey failed: %s\n",
+			  dos_errstr(werr));
+		goto done;
+	}
+
+	ret = 0;
+
+done:
+	TALLOC_FREE(ctx);
+	return ret;
+}
+
+static int net_registry_getsd(int argc, const char **argv)
+{
+	WERROR werr;
+	int ret = -1;
+	struct registry_key *key = NULL;
+	struct security_descriptor *secdesc = NULL;
+	TALLOC_CTX *ctx = talloc_stackframe();
+	uint32_t access_mask = REG_KEY_READ |
+			       SEC_RIGHT_MAXIMUM_ALLOWED |
+			       SEC_RIGHT_SYSTEM_SECURITY;
+
+	/*
+	 * net_rpc_regsitry uses SEC_RIGHT_SYSTEM_SECURITY, but access
+	 * is denied with these perms right now...
+	 */
+	access_mask = REG_KEY_READ;
+
+	if (argc != 1) {
+		d_printf("Usage:    net registry getsd <path>\n");
+		d_printf("Example:  net registry getsd "
+			 "'HKLM\\Software\\Samba'\n");
+		goto done;
+	}
+	if (strlen(argv[0]) == 0) {
+		d_fprintf(stderr, "error: zero length key name given\n");
+		goto done;
+	}
+
+	werr = open_key(ctx, argv[0], access_mask, &key);
+	if (!W_ERROR_IS_OK(werr)) {
+		d_fprintf(stderr, "open_key failed: %s\n", dos_errstr(werr));
+		goto done;
+	}
+
+	werr = reg_getkeysecurity(ctx, key, &secdesc);
+	if (!W_ERROR_IS_OK(werr)) {
+		d_fprintf(stderr, "reg_getkeysecurity failed: %s\n",
+			  dos_errstr(werr));
+		goto done;
+	}
+
+	display_sec_desc(secdesc);
+
+	ret = 0;
+
+done:
+	TALLOC_FREE(ctx);
+	return ret;
+}
+
+int net_registry(int argc, const char **argv)
+{
+	int ret = -1;
+
+	struct functable2 func[] = {
+		{
+			"enumerate",
+			net_registry_enumerate,
+			"Enumerate registry keys and values"
+		},
+		{
+			"createkey",
+			net_registry_createkey,
+			"Create a new registry key"
+		},
+		{
+			"deletekey",
+			net_registry_deletekey,
+			"Delete a registry key"
+		},
+		{
+			"setvalue",
+			net_registry_setvalue,
+			"Set a new registry value"
+		},
+		{
+			"deletevalue",
+			net_registry_deletevalue,
+			"Delete a registry value"
+		},
+		{
+			"getsd",
+			net_registry_getsd,
+			"Get security descriptor"
+		},
+	{ NULL, NULL, NULL }
+	};
+
+	if (!registry_init_basic()) {
+		return -1;
+	}
+
+	ret = net_run_function2(argc, argv, "net registry", func);
+
+	regdb_close();
+
+	return ret;
+}