summaryrefslogtreecommitdiffstats
path: root/libgpo/gpo_ini.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--libgpo/gpo_ini.c468
1 files changed, 468 insertions, 0 deletions
diff --git a/libgpo/gpo_ini.c b/libgpo/gpo_ini.c
new file mode 100644
index 0000000..66f743e
--- /dev/null
+++ b/libgpo/gpo_ini.c
@@ -0,0 +1,468 @@
+/*
+ * Unix SMB/CIFS implementation.
+ * Group Policy Support
+ * Copyright (C) Guenther Deschner 2007
+ * Copyright (C) Wilco Baan Hofman 2009
+ *
+ * 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 "gpo.h"
+#include "gpo_ini.h"
+#include "system/filesys.h"
+
+
+static bool change_section(const char *section, void *ctx_ptr)
+{
+ struct gp_inifile_context *ctx = (struct gp_inifile_context *) ctx_ptr;
+
+ if (ctx->current_section) {
+ talloc_free(ctx->current_section);
+ }
+ ctx->current_section = talloc_strdup(ctx, section);
+ if (!ctx->current_section) {
+ return false;
+ }
+ return true;
+}
+
+/****************************************************************
+****************************************************************/
+
+static bool store_keyval_pair(const char *key, const char *value, void *ctx_ptr)
+{
+ struct gp_inifile_context *ctx = (struct gp_inifile_context *) ctx_ptr;
+
+ ctx->data = talloc_realloc(ctx, ctx->data, struct keyval_pair *, ctx->keyval_count+1);
+ if (!ctx->data) {
+ return false;
+ }
+
+ ctx->data[ctx->keyval_count] = talloc_zero(ctx, struct keyval_pair);
+ if (!ctx->data[ctx->keyval_count]) {
+ return false;
+ }
+
+ ctx->data[ctx->keyval_count]->key = talloc_asprintf(ctx, "%s:%s", ctx->current_section, key);
+ ctx->data[ctx->keyval_count]->val = talloc_strdup(ctx, value ? value : "");
+
+ if (!ctx->data[ctx->keyval_count]->key ||
+ !ctx->data[ctx->keyval_count]->val) {
+ return false;
+ }
+
+ ctx->keyval_count++;
+ return true;
+}
+
+/****************************************************************
+****************************************************************/
+
+static NTSTATUS convert_file_from_ucs2(TALLOC_CTX *mem_ctx,
+ const char *filename_in,
+ char **filename_out)
+{
+ int tmp_fd = -1;
+ uint8_t *data_in = NULL;
+ uint8_t *data_out = NULL;
+ char *tmp_name = NULL;
+ NTSTATUS status;
+ size_t n = 0;
+ size_t converted_size;
+ mode_t mask;
+
+ if (!filename_out) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ data_in = (uint8_t *)file_load(filename_in, &n, 0, mem_ctx);
+ if (!data_in) {
+ status = NT_STATUS_NO_SUCH_FILE;
+ goto out;
+ }
+
+ DEBUG(11,("convert_file_from_ucs2: "
+ "data_in[0]: 0x%x, data_in[1]: 0x%x, data_in[2]: 0x%x\n",
+ data_in[0], data_in[1], data_in[2]));
+
+ if ((data_in[0] != 0xff) || (data_in[1] != 0xfe) || (data_in[2] != 0x0d)) {
+ *filename_out = NULL;
+ status = NT_STATUS_OK;
+ goto out;
+ }
+
+ tmp_name = talloc_asprintf(mem_ctx, "%s/convert_file_from_ucs2.XXXXXX",
+ tmpdir());
+ if (!tmp_name) {
+ status = NT_STATUS_NO_MEMORY;
+ goto out;
+ }
+
+ mask = umask(S_IRWXO | S_IRWXG);
+ tmp_fd = mkstemp(tmp_name);
+ umask(mask);
+ if (tmp_fd == -1) {
+ status = NT_STATUS_ACCESS_DENIED;
+ goto out;
+ }
+
+ if (!convert_string_talloc(mem_ctx, CH_UTF16LE, CH_UNIX, data_in, n,
+ &data_out, &converted_size))
+ {
+ status = NT_STATUS_INVALID_BUFFER_SIZE;
+ goto out;
+ }
+
+ DEBUG(11,("convert_file_from_ucs2: "
+ "%s skipping utf16-le BOM\n", tmp_name));
+
+ converted_size -= 3;
+
+ if (write(tmp_fd, data_out + 3, converted_size) != converted_size) {
+ status = map_nt_error_from_unix_common(errno);
+ goto out;
+ }
+
+ *filename_out = tmp_name;
+
+ status = NT_STATUS_OK;
+
+ out:
+ if (tmp_fd != -1) {
+ close(tmp_fd);
+ }
+
+ talloc_free(data_in);
+ talloc_free(data_out);
+
+ return status;
+}
+
+/****************************************************************
+****************************************************************/
+
+NTSTATUS gp_inifile_getstring(struct gp_inifile_context *ctx, const char *key, const char **ret)
+{
+ int i;
+
+ for (i = 0; i < ctx->keyval_count; i++) {
+ if (strcmp(ctx->data[i]->key, key) == 0) {
+ if (ret) {
+ *ret = ctx->data[i]->val;
+ }
+ return NT_STATUS_OK;
+ }
+ }
+ return NT_STATUS_NOT_FOUND;
+}
+
+/****************************************************************
+****************************************************************/
+
+NTSTATUS gp_inifile_getint(struct gp_inifile_context *ctx, const char *key, int *ret)
+{
+ const char *value;
+ NTSTATUS result;
+
+ result = gp_inifile_getstring(ctx,key, &value);
+ if (!NT_STATUS_IS_OK(result)) {
+ return result;
+ }
+
+ if (ret) {
+ *ret = (int)strtol(value, NULL, 10);
+ }
+ return NT_STATUS_OK;
+}
+
+/****************************************************************
+****************************************************************/
+
+NTSTATUS gp_inifile_getbool(struct gp_inifile_context *ctx, const char *key, bool *ret)
+{
+ const char *value;
+ NTSTATUS result;
+
+ result = gp_inifile_getstring(ctx,key, &value);
+ if (!NT_STATUS_IS_OK(result)) {
+ return result;
+ }
+
+ if (strequal(value, "Yes") ||
+ strequal(value, "True")) {
+ if (ret) {
+ *ret = true;
+ }
+ return NT_STATUS_OK;
+ } else if (strequal(value, "No") ||
+ strequal(value, "False")) {
+ if (ret) {
+ *ret = false;
+ }
+ return NT_STATUS_OK;
+ }
+
+ return NT_STATUS_NOT_FOUND;
+}
+
+/****************************************************************
+****************************************************************/
+
+NTSTATUS gp_inifile_enum_section(struct gp_inifile_context *ctx,
+ const char *section,
+ size_t *num_ini_keys,
+ const char ***ini_keys,
+ const char ***ini_values)
+{
+ NTSTATUS status;
+ int i;
+ size_t num_keys = 0, num_vals = 0;
+ const char **keys = NULL;
+ const char **values = NULL;
+
+ if (section == NULL || num_ini_keys == NULL ||
+ ini_keys == NULL || ini_values == NULL) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ for (i = 0; i < ctx->keyval_count; i++) {
+
+ bool ok;
+
+ /*
+ * section: KEYNAME
+ * KEYNAME:value matches
+ * KEYNAME_OEM:value not
+ */
+
+ if (strlen(section)+1 > strlen(ctx->data[i]->key)) {
+ continue;
+ }
+
+ if (!strnequal(section, ctx->data[i]->key, strlen(section))) {
+ continue;
+ }
+
+ if (ctx->data[i]->key[strlen(section)] != ':') {
+ continue;
+ }
+
+ ok = add_string_to_array(ctx, ctx->data[i]->key, &keys, &num_keys);
+ if (!ok) {
+ status = NT_STATUS_NO_MEMORY;
+ goto failed;
+ }
+
+ ok = add_string_to_array(ctx, ctx->data[i]->val, &values, &num_vals);
+ if (!ok) {
+ status = NT_STATUS_NO_MEMORY;
+ goto failed;
+ }
+
+ if (num_keys != num_vals) {
+ status = NT_STATUS_INTERNAL_DB_CORRUPTION;
+ goto failed;
+ }
+ }
+
+ *num_ini_keys = num_keys;
+ *ini_keys = keys;
+ *ini_values = values;
+
+ return NT_STATUS_OK;
+
+ failed:
+ talloc_free(keys);
+ talloc_free(values);
+
+ return status;
+}
+
+
+/****************************************************************
+****************************************************************/
+
+NTSTATUS gp_inifile_init_context(TALLOC_CTX *mem_ctx,
+ uint32_t flags,
+ const char *unix_path,
+ const char *suffix,
+ struct gp_inifile_context **ctx_ret)
+{
+ struct gp_inifile_context *ctx = NULL;
+ NTSTATUS status;
+ int rv;
+ char *tmp_filename = NULL;
+ const char *ini_filename = NULL;
+
+ if (!unix_path || !ctx_ret) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ ctx = talloc_zero(mem_ctx, struct gp_inifile_context);
+ NT_STATUS_HAVE_NO_MEMORY(ctx);
+
+ status = gp_find_file(mem_ctx, flags, unix_path, suffix,
+ &ini_filename);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ goto failed;
+ }
+
+ status = convert_file_from_ucs2(mem_ctx, ini_filename,
+ &tmp_filename);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto failed;
+ }
+
+ rv = pm_process(tmp_filename != NULL ? tmp_filename : ini_filename,
+ change_section, store_keyval_pair, ctx);
+ if (!rv) {
+ return NT_STATUS_NO_SUCH_FILE;
+ }
+
+
+ ctx->generated_filename = tmp_filename;
+ ctx->mem_ctx = mem_ctx;
+
+ *ctx_ret = ctx;
+
+ return NT_STATUS_OK;
+
+ failed:
+
+ DEBUG(1,("gp_inifile_init_context failed: %s\n",
+ nt_errstr(status)));
+
+ talloc_free(ctx);
+
+ return status;
+}
+
+/****************************************************************
+****************************************************************/
+
+NTSTATUS gp_inifile_init_context_direct(TALLOC_CTX *mem_ctx,
+ const char *unix_path,
+ struct gp_inifile_context **pgp_ctx)
+{
+ struct gp_inifile_context *gp_ctx = NULL;
+ NTSTATUS status;
+ bool rv;
+ char *tmp_filename = NULL;
+
+ if (unix_path == NULL || pgp_ctx == NULL) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ gp_ctx = talloc_zero(mem_ctx, struct gp_inifile_context);
+ if (gp_ctx == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ status = convert_file_from_ucs2(mem_ctx, unix_path,
+ &tmp_filename);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto failed;
+ }
+
+ rv = pm_process_with_flags(tmp_filename != NULL ? tmp_filename : unix_path,
+ true,
+ change_section,
+ store_keyval_pair,
+ gp_ctx);
+ if (!rv) {
+ return NT_STATUS_NO_SUCH_FILE;
+ }
+
+ gp_ctx->generated_filename = tmp_filename;
+ gp_ctx->mem_ctx = mem_ctx;
+
+ *pgp_ctx = gp_ctx;
+
+ return NT_STATUS_OK;
+
+ failed:
+
+ DEBUG(1,("gp_inifile_init_context_direct failed: %s\n",
+ nt_errstr(status)));
+
+ talloc_free(gp_ctx);
+
+ return status;
+}
+
+
+/****************************************************************
+ parse the local gpt.ini file
+****************************************************************/
+
+#define GPT_INI_SECTION_GENERAL "General"
+#define GPT_INI_PARAMETER_VERSION "Version"
+#define GPT_INI_PARAMETER_DISPLAYNAME "displayName"
+
+NTSTATUS parse_gpt_ini(TALLOC_CTX *mem_ctx,
+ const char *filename,
+ uint32_t *version,
+ char **display_name)
+{
+ NTSTATUS result;
+ int rv;
+ int v = 0;
+ const char *name = NULL;
+ struct gp_inifile_context *ctx;
+
+ if (!filename) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ ctx = talloc_zero(mem_ctx, struct gp_inifile_context);
+ NT_STATUS_HAVE_NO_MEMORY(ctx);
+
+ rv = pm_process(filename, change_section, store_keyval_pair, ctx);
+ if (!rv) {
+ return NT_STATUS_NO_SUCH_FILE;
+ }
+
+
+ result = gp_inifile_getstring(ctx, GPT_INI_SECTION_GENERAL
+ ":"GPT_INI_PARAMETER_DISPLAYNAME, &name);
+ if (!NT_STATUS_IS_OK(result)) {
+ /* the default domain policy and the default domain controller
+ * policy never have a displayname in their gpt.ini file */
+ DEBUG(10,("parse_gpt_ini: no name in %s\n", filename));
+ }
+
+ if (name && display_name) {
+ *display_name = talloc_strdup(ctx, name);
+ if (*display_name == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ }
+
+ result = gp_inifile_getint(ctx, GPT_INI_SECTION_GENERAL
+ ":"GPT_INI_PARAMETER_VERSION, &v);
+ if (!NT_STATUS_IS_OK(result)) {
+ DEBUG(10,("parse_gpt_ini: no version\n"));
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
+
+ if (version) {
+ *version = v;
+ }
+
+ talloc_free(ctx);
+
+ return NT_STATUS_OK;
+}