--- /dev/null
+/*
+ * WPA Supplicant / dbus-based control interface
+ * Copyright (c) 2006, Dan Williams <dcbw@redhat.com> and Red Hat, Inc.
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "includes.h"
+#include <dbus/dbus.h>
+
+#include "common.h"
+#include "wpabuf.h"
+#include "dbus_dict_helpers.h"
+
+
+/**
+ * Start a dict in a dbus message. Should be paired with a call to
+ * wpa_dbus_dict_close_write().
+ *
+ * @param iter A valid dbus message iterator
+ * @param iter_dict (out) A dict iterator to pass to further dict functions
+ * @return TRUE on success, FALSE on failure
+ *
+ */
+dbus_bool_t wpa_dbus_dict_open_write(DBusMessageIter *iter,
+ DBusMessageIter *iter_dict)
+{
+ dbus_bool_t result;
+
+ if (!iter || !iter_dict)
+ return FALSE;
+
+ result = dbus_message_iter_open_container(
+ iter,
+ DBUS_TYPE_ARRAY,
+ DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
+ DBUS_TYPE_STRING_AS_STRING
+ DBUS_TYPE_VARIANT_AS_STRING
+ DBUS_DICT_ENTRY_END_CHAR_AS_STRING,
+ iter_dict);
+ return result;
+}
+
+
+/**
+ * End a dict element in a dbus message. Should be paired with
+ * a call to wpa_dbus_dict_open_write().
+ *
+ * @param iter valid dbus message iterator, same as passed to
+ * wpa_dbus_dict_open_write()
+ * @param iter_dict a dbus dict iterator returned from
+ * wpa_dbus_dict_open_write()
+ * @return TRUE on success, FALSE on failure
+ *
+ */
+dbus_bool_t wpa_dbus_dict_close_write(DBusMessageIter *iter,
+ DBusMessageIter *iter_dict)
+{
+ if (!iter || !iter_dict)
+ return FALSE;
+
+ return dbus_message_iter_close_container(iter, iter_dict);
+}
+
+
+const char * wpa_dbus_type_as_string(const int type)
+{
+ switch (type) {
+ case DBUS_TYPE_BYTE:
+ return DBUS_TYPE_BYTE_AS_STRING;
+ case DBUS_TYPE_BOOLEAN:
+ return DBUS_TYPE_BOOLEAN_AS_STRING;
+ case DBUS_TYPE_INT16:
+ return DBUS_TYPE_INT16_AS_STRING;
+ case DBUS_TYPE_UINT16:
+ return DBUS_TYPE_UINT16_AS_STRING;
+ case DBUS_TYPE_INT32:
+ return DBUS_TYPE_INT32_AS_STRING;
+ case DBUS_TYPE_UINT32:
+ return DBUS_TYPE_UINT32_AS_STRING;
+ case DBUS_TYPE_INT64:
+ return DBUS_TYPE_INT64_AS_STRING;
+ case DBUS_TYPE_UINT64:
+ return DBUS_TYPE_UINT64_AS_STRING;
+ case DBUS_TYPE_DOUBLE:
+ return DBUS_TYPE_DOUBLE_AS_STRING;
+ case DBUS_TYPE_STRING:
+ return DBUS_TYPE_STRING_AS_STRING;
+ case DBUS_TYPE_OBJECT_PATH:
+ return DBUS_TYPE_OBJECT_PATH_AS_STRING;
+ case DBUS_TYPE_ARRAY:
+ return DBUS_TYPE_ARRAY_AS_STRING;
+ default:
+ return NULL;
+ }
+}
+
+
+static dbus_bool_t _wpa_dbus_add_dict_entry_start(
+ DBusMessageIter *iter_dict, DBusMessageIter *iter_dict_entry,
+ const char *key, const int value_type)
+{
+ if (!dbus_message_iter_open_container(iter_dict,
+ DBUS_TYPE_DICT_ENTRY, NULL,
+ iter_dict_entry))
+ return FALSE;
+
+ return dbus_message_iter_append_basic(iter_dict_entry, DBUS_TYPE_STRING,
+ &key);
+}
+
+
+static dbus_bool_t _wpa_dbus_add_dict_entry_end(
+ DBusMessageIter *iter_dict, DBusMessageIter *iter_dict_entry,
+ DBusMessageIter *iter_dict_val)
+{
+ if (!dbus_message_iter_close_container(iter_dict_entry, iter_dict_val))
+ return FALSE;
+
+ return dbus_message_iter_close_container(iter_dict, iter_dict_entry);
+}
+
+
+static dbus_bool_t _wpa_dbus_add_dict_entry_basic(DBusMessageIter *iter_dict,
+ const char *key,
+ const int value_type,
+ const void *value)
+{
+ DBusMessageIter iter_dict_entry, iter_dict_val;
+ const char *type_as_string = NULL;
+
+ if (key == NULL)
+ return FALSE;
+
+ type_as_string = wpa_dbus_type_as_string(value_type);
+ if (!type_as_string)
+ return FALSE;
+
+ if (!_wpa_dbus_add_dict_entry_start(iter_dict, &iter_dict_entry,
+ key, value_type) ||
+ !dbus_message_iter_open_container(&iter_dict_entry,
+ DBUS_TYPE_VARIANT,
+ type_as_string, &iter_dict_val) ||
+ !dbus_message_iter_append_basic(&iter_dict_val, value_type, value))
+ return FALSE;
+
+ return _wpa_dbus_add_dict_entry_end(iter_dict, &iter_dict_entry,
+ &iter_dict_val);
+}
+
+
+static dbus_bool_t _wpa_dbus_add_dict_entry_byte_array(
+ DBusMessageIter *iter_dict, const char *key,
+ const char *value, const dbus_uint32_t value_len)
+{
+ DBusMessageIter iter_dict_entry, iter_dict_val, iter_array;
+ dbus_uint32_t i;
+
+ if (!_wpa_dbus_add_dict_entry_start(iter_dict, &iter_dict_entry,
+ key, DBUS_TYPE_ARRAY) ||
+ !dbus_message_iter_open_container(&iter_dict_entry,
+ DBUS_TYPE_VARIANT,
+ DBUS_TYPE_ARRAY_AS_STRING
+ DBUS_TYPE_BYTE_AS_STRING,
+ &iter_dict_val) ||
+ !dbus_message_iter_open_container(&iter_dict_val, DBUS_TYPE_ARRAY,
+ DBUS_TYPE_BYTE_AS_STRING,
+ &iter_array))
+ return FALSE;
+
+ for (i = 0; i < value_len; i++) {
+ if (!dbus_message_iter_append_basic(&iter_array,
+ DBUS_TYPE_BYTE,
+ &(value[i])))
+ return FALSE;
+ }
+
+ if (!dbus_message_iter_close_container(&iter_dict_val, &iter_array))
+ return FALSE;
+
+ return _wpa_dbus_add_dict_entry_end(iter_dict, &iter_dict_entry,
+ &iter_dict_val);
+}
+
+
+/**
+ * Add a string entry to the dict.
+ *
+ * @param iter_dict A valid DBusMessageIter returned from
+ * wpa_dbus_dict_open_write()
+ * @param key The key of the dict item
+ * @param value The string value
+ * @return TRUE on success, FALSE on failure
+ *
+ */
+dbus_bool_t wpa_dbus_dict_append_string(DBusMessageIter *iter_dict,
+ const char *key, const char *value)
+{
+ if (!value)
+ return FALSE;
+ return _wpa_dbus_add_dict_entry_basic(iter_dict, key, DBUS_TYPE_STRING,
+ &value);
+}
+
+
+/**
+ * Add a boolean entry to the dict.
+ *
+ * @param iter_dict A valid DBusMessageIter returned from
+ * wpa_dbus_dict_open_write()
+ * @param key The key of the dict item
+ * @param value The boolean value
+ * @return TRUE on success, FALSE on failure
+ *
+ */
+dbus_bool_t wpa_dbus_dict_append_bool(DBusMessageIter *iter_dict,
+ const char *key, const dbus_bool_t value)
+{
+ return _wpa_dbus_add_dict_entry_basic(iter_dict, key,
+ DBUS_TYPE_BOOLEAN, &value);
+}
+
+
+/**
+ * Add a 16-bit signed integer entry to the dict.
+ *
+ * @param iter_dict A valid DBusMessageIter returned from
+ * wpa_dbus_dict_open_write()
+ * @param key The key of the dict item
+ * @param value The 16-bit signed integer value
+ * @return TRUE on success, FALSE on failure
+ *
+ */
+dbus_bool_t wpa_dbus_dict_append_int16(DBusMessageIter *iter_dict,
+ const char *key,
+ const dbus_int16_t value)
+{
+ return _wpa_dbus_add_dict_entry_basic(iter_dict, key, DBUS_TYPE_INT16,
+ &value);
+}
+
+
+/**
+ * Add a 16-bit unsigned integer entry to the dict.
+ *
+ * @param iter_dict A valid DBusMessageIter returned from
+ * wpa_dbus_dict_open_write()
+ * @param key The key of the dict item
+ * @param value The 16-bit unsigned integer value
+ * @return TRUE on success, FALSE on failure
+ *
+ */
+dbus_bool_t wpa_dbus_dict_append_uint16(DBusMessageIter *iter_dict,
+ const char *key,
+ const dbus_uint16_t value)
+{
+ return _wpa_dbus_add_dict_entry_basic(iter_dict, key, DBUS_TYPE_UINT16,
+ &value);
+}
+
+
+/**
+ * Add a 32-bit signed integer to the dict.
+ *
+ * @param iter_dict A valid DBusMessageIter returned from
+ * wpa_dbus_dict_open_write()
+ * @param key The key of the dict item
+ * @param value The 32-bit signed integer value
+ * @return TRUE on success, FALSE on failure
+ *
+ */
+dbus_bool_t wpa_dbus_dict_append_int32(DBusMessageIter *iter_dict,
+ const char *key,
+ const dbus_int32_t value)
+{
+ return _wpa_dbus_add_dict_entry_basic(iter_dict, key, DBUS_TYPE_INT32,
+ &value);
+}
+
+
+/**
+ * Add a 32-bit unsigned integer entry to the dict.
+ *
+ * @param iter_dict A valid DBusMessageIter returned from
+ * wpa_dbus_dict_open_write()
+ * @param key The key of the dict item
+ * @param value The 32-bit unsigned integer value
+ * @return TRUE on success, FALSE on failure
+ *
+ */
+dbus_bool_t wpa_dbus_dict_append_uint32(DBusMessageIter *iter_dict,
+ const char *key,
+ const dbus_uint32_t value)
+{
+ return _wpa_dbus_add_dict_entry_basic(iter_dict, key, DBUS_TYPE_UINT32,
+ &value);
+}
+
+
+/**
+ * Add a DBus object path entry to the dict.
+ *
+ * @param iter_dict A valid DBusMessageIter returned from
+ * wpa_dbus_dict_open_write()
+ * @param key The key of the dict item
+ * @param value The DBus object path value
+ * @return TRUE on success, FALSE on failure
+ *
+ */
+dbus_bool_t wpa_dbus_dict_append_object_path(DBusMessageIter *iter_dict,
+ const char *key,
+ const char *value)
+{
+ if (!value)
+ return FALSE;
+ return _wpa_dbus_add_dict_entry_basic(iter_dict, key,
+ DBUS_TYPE_OBJECT_PATH, &value);
+}
+
+
+/**
+ * Add a byte array entry to the dict.
+ *
+ * @param iter_dict A valid DBusMessageIter returned from
+ * wpa_dbus_dict_open_write()
+ * @param key The key of the dict item
+ * @param value The byte array
+ * @param value_len The length of the byte array, in bytes
+ * @return TRUE on success, FALSE on failure
+ *
+ */
+dbus_bool_t wpa_dbus_dict_append_byte_array(DBusMessageIter *iter_dict,
+ const char *key,
+ const char *value,
+ const dbus_uint32_t value_len)
+{
+ if (!key || (!value && value_len != 0))
+ return FALSE;
+ return _wpa_dbus_add_dict_entry_byte_array(iter_dict, key, value,
+ value_len);
+}
+
+
+/**
+ * Begin an array entry in the dict
+ *
+ * @param iter_dict A valid DBusMessageIter returned from
+ * wpa_dbus_dict_open_write()
+ * @param key The key of the dict item
+ * @param type The type of the contained data
+ * @param iter_dict_entry A private DBusMessageIter provided by the caller to
+ * be passed to wpa_dbus_dict_end_string_array()
+ * @param iter_dict_val A private DBusMessageIter provided by the caller to
+ * be passed to wpa_dbus_dict_end_string_array()
+ * @param iter_array On return, the DBusMessageIter to be passed to
+ * wpa_dbus_dict_string_array_add_element()
+ * @return TRUE on success, FALSE on failure
+ *
+ */
+dbus_bool_t wpa_dbus_dict_begin_array(DBusMessageIter *iter_dict,
+ const char *key, const char *type,
+ DBusMessageIter *iter_dict_entry,
+ DBusMessageIter *iter_dict_val,
+ DBusMessageIter *iter_array)
+{
+ char array_type[10];
+ int err;
+
+ err = os_snprintf(array_type, sizeof(array_type),
+ DBUS_TYPE_ARRAY_AS_STRING "%s",
+ type);
+ if (os_snprintf_error(sizeof(array_type), err))
+ return FALSE;
+
+ if (!iter_dict || !iter_dict_entry || !iter_dict_val || !iter_array ||
+ !_wpa_dbus_add_dict_entry_start(iter_dict, iter_dict_entry,
+ key, DBUS_TYPE_ARRAY) ||
+ !dbus_message_iter_open_container(iter_dict_entry,
+ DBUS_TYPE_VARIANT,
+ array_type,
+ iter_dict_val))
+ return FALSE;
+
+ return dbus_message_iter_open_container(iter_dict_val, DBUS_TYPE_ARRAY,
+ type, iter_array);
+}
+
+
+dbus_bool_t wpa_dbus_dict_begin_string_array(DBusMessageIter *iter_dict,
+ const char *key,
+ DBusMessageIter *iter_dict_entry,
+ DBusMessageIter *iter_dict_val,
+ DBusMessageIter *iter_array)
+{
+ return wpa_dbus_dict_begin_array(
+ iter_dict, key,
+ DBUS_TYPE_STRING_AS_STRING,
+ iter_dict_entry, iter_dict_val, iter_array);
+}
+
+
+/**
+ * Add a single string element to a string array dict entry
+ *
+ * @param iter_array A valid DBusMessageIter returned from
+ * wpa_dbus_dict_begin_string_array()'s
+ * iter_array parameter
+ * @param elem The string element to be added to the dict entry's string array
+ * @return TRUE on success, FALSE on failure
+ *
+ */
+dbus_bool_t wpa_dbus_dict_string_array_add_element(DBusMessageIter *iter_array,
+ const char *elem)
+{
+ if (!iter_array || !elem)
+ return FALSE;
+
+ return dbus_message_iter_append_basic(iter_array, DBUS_TYPE_STRING,
+ &elem);
+}
+
+
+/**
+ * Add a single byte array element to a string array dict entry
+ *
+ * @param iter_array A valid DBusMessageIter returned from
+ * wpa_dbus_dict_begin_array()'s iter_array
+ * parameter -- note that wpa_dbus_dict_begin_array()
+ * must have been called with "ay" as the type
+ * @param value The data to be added to the dict entry's array
+ * @param value_len The length of the data
+ * @return TRUE on success, FALSE on failure
+ *
+ */
+dbus_bool_t wpa_dbus_dict_bin_array_add_element(DBusMessageIter *iter_array,
+ const u8 *value,
+ size_t value_len)
+{
+ DBusMessageIter iter_bytes;
+ size_t i;
+
+ if (!iter_array || !value ||
+ !dbus_message_iter_open_container(iter_array, DBUS_TYPE_ARRAY,
+ DBUS_TYPE_BYTE_AS_STRING,
+ &iter_bytes))
+ return FALSE;
+
+ for (i = 0; i < value_len; i++) {
+ if (!dbus_message_iter_append_basic(&iter_bytes,
+ DBUS_TYPE_BYTE,
+ &(value[i])))
+ return FALSE;
+ }
+
+ return dbus_message_iter_close_container(iter_array, &iter_bytes);
+}
+
+
+/**
+ * End an array dict entry
+ *
+ * @param iter_dict A valid DBusMessageIter returned from
+ * wpa_dbus_dict_open_write()
+ * @param iter_dict_entry A private DBusMessageIter returned from
+ * wpa_dbus_dict_begin_string_array() or
+ * wpa_dbus_dict_begin_array()
+ * @param iter_dict_val A private DBusMessageIter returned from
+ * wpa_dbus_dict_begin_string_array() or
+ * wpa_dbus_dict_begin_array()
+ * @param iter_array A DBusMessageIter returned from
+ * wpa_dbus_dict_begin_string_array() or
+ * wpa_dbus_dict_begin_array()
+ * @return TRUE on success, FALSE on failure
+ *
+ */
+dbus_bool_t wpa_dbus_dict_end_array(DBusMessageIter *iter_dict,
+ DBusMessageIter *iter_dict_entry,
+ DBusMessageIter *iter_dict_val,
+ DBusMessageIter *iter_array)
+{
+ if (!iter_dict || !iter_dict_entry || !iter_dict_val || !iter_array ||
+ !dbus_message_iter_close_container(iter_dict_val, iter_array))
+ return FALSE;
+
+ return _wpa_dbus_add_dict_entry_end(iter_dict, iter_dict_entry,
+ iter_dict_val);
+}
+
+
+/**
+ * Convenience function to add an entire string array to the dict.
+ *
+ * @param iter_dict A valid DBusMessageIter returned from
+ * wpa_dbus_dict_open_write()
+ * @param key The key of the dict item
+ * @param items The array of strings
+ * @param num_items The number of strings in the array
+ * @return TRUE on success, FALSE on failure
+ *
+ */
+dbus_bool_t wpa_dbus_dict_append_string_array(DBusMessageIter *iter_dict,
+ const char *key,
+ const char **items,
+ const dbus_uint32_t num_items)
+{
+ DBusMessageIter iter_dict_entry, iter_dict_val, iter_array;
+ dbus_uint32_t i;
+
+ if (!key || (!items && num_items != 0) ||
+ !wpa_dbus_dict_begin_string_array(iter_dict, key,
+ &iter_dict_entry, &iter_dict_val,
+ &iter_array))
+ return FALSE;
+
+ for (i = 0; i < num_items; i++) {
+ if (!wpa_dbus_dict_string_array_add_element(&iter_array,
+ items[i]))
+ return FALSE;
+ }
+
+ return wpa_dbus_dict_end_string_array(iter_dict, &iter_dict_entry,
+ &iter_dict_val, &iter_array);
+}
+
+
+/**
+ * Convenience function to add an wpabuf binary array to the dict.
+ *
+ * @param iter_dict A valid DBusMessageIter returned from
+ * wpa_dbus_dict_open_write()
+ * @param key The key of the dict item
+ * @param items The array of wpabuf structures
+ * @param num_items The number of strings in the array
+ * @return TRUE on success, FALSE on failure
+ *
+ */
+dbus_bool_t wpa_dbus_dict_append_wpabuf_array(DBusMessageIter *iter_dict,
+ const char *key,
+ const struct wpabuf **items,
+ const dbus_uint32_t num_items)
+{
+ DBusMessageIter iter_dict_entry, iter_dict_val, iter_array;
+ dbus_uint32_t i;
+
+ if (!key ||
+ (!items && num_items != 0) ||
+ !wpa_dbus_dict_begin_array(iter_dict, key,
+ DBUS_TYPE_ARRAY_AS_STRING
+ DBUS_TYPE_BYTE_AS_STRING,
+ &iter_dict_entry, &iter_dict_val,
+ &iter_array))
+ return FALSE;
+
+ for (i = 0; i < num_items; i++) {
+ if (!wpa_dbus_dict_bin_array_add_element(&iter_array,
+ wpabuf_head(items[i]),
+ wpabuf_len(items[i])))
+ return FALSE;
+ }
+
+ return wpa_dbus_dict_end_array(iter_dict, &iter_dict_entry,
+ &iter_dict_val, &iter_array);
+}
+
+
+/*****************************************************/
+/* Stuff for reading dicts */
+/*****************************************************/
+
+/**
+ * Start reading from a dbus dict.
+ *
+ * @param iter A valid DBusMessageIter pointing to the start of the dict
+ * @param iter_dict (out) A DBusMessageIter to be passed to
+ * wpa_dbus_dict_read_next_entry()
+ * @error on failure a descriptive error
+ * @return TRUE on success, FALSE on failure
+ *
+ */
+dbus_bool_t wpa_dbus_dict_open_read(DBusMessageIter *iter,
+ DBusMessageIter *iter_dict,
+ DBusError *error)
+{
+ int type;
+
+ wpa_printf(MSG_MSGDUMP, "%s: start reading a dict entry", __func__);
+ if (!iter || !iter_dict) {
+ dbus_set_error_const(error, DBUS_ERROR_FAILED,
+ "[internal] missing message iterators");
+ return FALSE;
+ }
+
+ type = dbus_message_iter_get_arg_type(iter);
+ if (type != DBUS_TYPE_ARRAY ||
+ dbus_message_iter_get_element_type(iter) != DBUS_TYPE_DICT_ENTRY) {
+ wpa_printf(MSG_DEBUG,
+ "%s: unexpected message argument types (arg=%c element=%c)",
+ __func__, type,
+ type != DBUS_TYPE_ARRAY ? '?' :
+ dbus_message_iter_get_element_type(iter));
+ dbus_set_error_const(error, DBUS_ERROR_INVALID_ARGS,
+ "unexpected message argument types");
+ return FALSE;
+ }
+
+ dbus_message_iter_recurse(iter, iter_dict);
+ return TRUE;
+}
+
+
+#define BYTE_ARRAY_CHUNK_SIZE 34
+#define BYTE_ARRAY_ITEM_SIZE (sizeof(char))
+
+static dbus_bool_t _wpa_dbus_dict_entry_get_byte_array(
+ DBusMessageIter *iter, struct wpa_dbus_dict_entry *entry)
+{
+ dbus_uint32_t count = 0;
+ dbus_bool_t success = FALSE;
+ char *buffer, *nbuffer;
+
+ entry->bytearray_value = NULL;
+ entry->array_type = DBUS_TYPE_BYTE;
+
+ buffer = os_calloc(BYTE_ARRAY_CHUNK_SIZE, BYTE_ARRAY_ITEM_SIZE);
+ if (!buffer)
+ return FALSE;
+
+ entry->array_len = 0;
+ while (dbus_message_iter_get_arg_type(iter) == DBUS_TYPE_BYTE) {
+ char byte;
+
+ if ((count % BYTE_ARRAY_CHUNK_SIZE) == 0 && count != 0) {
+ nbuffer = os_realloc_array(
+ buffer, count + BYTE_ARRAY_CHUNK_SIZE,
+ BYTE_ARRAY_ITEM_SIZE);
+ if (nbuffer == NULL) {
+ os_free(buffer);
+ wpa_printf(MSG_ERROR,
+ "dbus: %s out of memory trying to retrieve the string array",
+ __func__);
+ goto done;
+ }
+ buffer = nbuffer;
+ }
+
+ dbus_message_iter_get_basic(iter, &byte);
+ buffer[count] = byte;
+ entry->array_len = ++count;
+ dbus_message_iter_next(iter);
+ }
+ entry->bytearray_value = buffer;
+ wpa_hexdump_key(MSG_MSGDUMP, "dbus: byte array contents",
+ entry->bytearray_value, entry->array_len);
+
+ /* Zero-length arrays are valid. */
+ if (entry->array_len == 0) {
+ os_free(entry->bytearray_value);
+ entry->bytearray_value = NULL;
+ }
+
+ success = TRUE;
+
+done:
+ return success;
+}
+
+
+#define STR_ARRAY_CHUNK_SIZE 8
+#define STR_ARRAY_ITEM_SIZE (sizeof(char *))
+
+static dbus_bool_t _wpa_dbus_dict_entry_get_string_array(
+ DBusMessageIter *iter, int array_type,
+ struct wpa_dbus_dict_entry *entry)
+{
+ dbus_uint32_t count = 0;
+ char **buffer, **nbuffer;
+
+ entry->strarray_value = NULL;
+ entry->array_len = 0;
+ entry->array_type = DBUS_TYPE_STRING;
+
+ buffer = os_calloc(STR_ARRAY_CHUNK_SIZE, STR_ARRAY_ITEM_SIZE);
+ if (buffer == NULL)
+ return FALSE;
+
+ while (dbus_message_iter_get_arg_type(iter) == DBUS_TYPE_STRING) {
+ const char *value;
+ char *str;
+
+ if ((count % STR_ARRAY_CHUNK_SIZE) == 0 && count != 0) {
+ nbuffer = os_realloc_array(
+ buffer, count + STR_ARRAY_CHUNK_SIZE,
+ STR_ARRAY_ITEM_SIZE);
+ if (nbuffer == NULL) {
+ wpa_printf(MSG_ERROR,
+ "dbus: %s out of memory trying to retrieve the string array",
+ __func__);
+ goto fail;
+ }
+ buffer = nbuffer;
+ }
+
+ dbus_message_iter_get_basic(iter, &value);
+ wpa_printf(MSG_MSGDUMP, "%s: string_array value: %s",
+ __func__, wpa_debug_show_keys ? value : "[omitted]");
+ str = os_strdup(value);
+ if (str == NULL) {
+ wpa_printf(MSG_ERROR,
+ "dbus: %s out of memory trying to duplicate the string array",
+ __func__);
+ goto fail;
+ }
+ buffer[count++] = str;
+ dbus_message_iter_next(iter);
+ }
+ entry->strarray_value = buffer;
+ entry->array_len = count;
+ wpa_printf(MSG_MSGDUMP, "%s: string_array length %u",
+ __func__, entry->array_len);
+
+ /* Zero-length arrays are valid. */
+ if (entry->array_len == 0) {
+ os_free(entry->strarray_value);
+ entry->strarray_value = NULL;
+ }
+
+ return TRUE;
+
+fail:
+ while (count > 0) {
+ count--;
+ os_free(buffer[count]);
+ }
+ os_free(buffer);
+ return FALSE;
+}
+
+
+#define BIN_ARRAY_CHUNK_SIZE 10
+#define BIN_ARRAY_ITEM_SIZE (sizeof(struct wpabuf *))
+
+static dbus_bool_t _wpa_dbus_dict_entry_get_binarray(
+ DBusMessageIter *iter, struct wpa_dbus_dict_entry *entry)
+{
+ struct wpa_dbus_dict_entry tmpentry;
+ size_t buflen = 0;
+ int i, type;
+
+ entry->array_type = WPAS_DBUS_TYPE_BINARRAY;
+ entry->array_len = 0;
+ entry->binarray_value = NULL;
+
+ type = dbus_message_iter_get_arg_type(iter);
+ wpa_printf(MSG_MSGDUMP, "%s: parsing binarray type %c", __func__, type);
+ if (type == DBUS_TYPE_INVALID) {
+ /* Likely an empty array of arrays */
+ return TRUE;
+ }
+ if (type != DBUS_TYPE_ARRAY) {
+ wpa_printf(MSG_DEBUG, "%s: not an array type: %c",
+ __func__, type);
+ return FALSE;
+ }
+
+ type = dbus_message_iter_get_element_type(iter);
+ if (type != DBUS_TYPE_BYTE) {
+ wpa_printf(MSG_DEBUG, "%s: unexpected element type %c",
+ __func__, type);
+ return FALSE;
+ }
+
+ while (dbus_message_iter_get_arg_type(iter) == DBUS_TYPE_ARRAY) {
+ DBusMessageIter iter_array;
+
+ if (entry->array_len == buflen) {
+ struct wpabuf **newbuf;
+
+ buflen += BIN_ARRAY_CHUNK_SIZE;
+
+ newbuf = os_realloc_array(entry->binarray_value,
+ buflen, BIN_ARRAY_ITEM_SIZE);
+ if (!newbuf)
+ goto cleanup;
+ entry->binarray_value = newbuf;
+ }
+
+ dbus_message_iter_recurse(iter, &iter_array);
+ os_memset(&tmpentry, 0, sizeof(tmpentry));
+ tmpentry.type = DBUS_TYPE_ARRAY;
+ if (_wpa_dbus_dict_entry_get_byte_array(&iter_array, &tmpentry)
+ == FALSE)
+ goto cleanup;
+
+ entry->binarray_value[entry->array_len] =
+ wpabuf_alloc_ext_data((u8 *) tmpentry.bytearray_value,
+ tmpentry.array_len);
+ if (entry->binarray_value[entry->array_len] == NULL) {
+ wpa_dbus_dict_entry_clear(&tmpentry);
+ goto cleanup;
+ }
+ entry->array_len++;
+ dbus_message_iter_next(iter);
+ }
+ wpa_printf(MSG_MSGDUMP, "%s: binarray length %u",
+ __func__, entry->array_len);
+
+ return TRUE;
+
+ cleanup:
+ for (i = 0; i < (int) entry->array_len; i++)
+ wpabuf_free(entry->binarray_value[i]);
+ os_free(entry->binarray_value);
+ entry->array_len = 0;
+ entry->binarray_value = NULL;
+ return FALSE;
+}
+
+
+static dbus_bool_t _wpa_dbus_dict_entry_get_array(
+ DBusMessageIter *iter_dict_val, struct wpa_dbus_dict_entry *entry)
+{
+ int array_type = dbus_message_iter_get_element_type(iter_dict_val);
+ dbus_bool_t success = FALSE;
+ DBusMessageIter iter_array;
+
+ wpa_printf(MSG_MSGDUMP, "%s: array_type %c", __func__, array_type);
+
+ dbus_message_iter_recurse(iter_dict_val, &iter_array);
+
+ switch (array_type) {
+ case DBUS_TYPE_BYTE:
+ success = _wpa_dbus_dict_entry_get_byte_array(&iter_array,
+ entry);
+ break;
+ case DBUS_TYPE_STRING:
+ success = _wpa_dbus_dict_entry_get_string_array(&iter_array,
+ array_type,
+ entry);
+ break;
+ case DBUS_TYPE_ARRAY:
+ success = _wpa_dbus_dict_entry_get_binarray(&iter_array, entry);
+ break;
+ default:
+ wpa_printf(MSG_MSGDUMP, "%s: unsupported array type %c",
+ __func__, array_type);
+ break;
+ }
+
+ return success;
+}
+
+
+static dbus_bool_t _wpa_dbus_dict_fill_value_from_variant(
+ struct wpa_dbus_dict_entry *entry, DBusMessageIter *iter)
+{
+ const char *v;
+
+ switch (entry->type) {
+ case DBUS_TYPE_OBJECT_PATH:
+ dbus_message_iter_get_basic(iter, &v);
+ wpa_printf(MSG_MSGDUMP, "%s: object path value: %s",
+ __func__, v);
+ entry->str_value = os_strdup(v);
+ if (entry->str_value == NULL)
+ return FALSE;
+ break;
+ case DBUS_TYPE_STRING:
+ dbus_message_iter_get_basic(iter, &v);
+ wpa_printf(MSG_MSGDUMP, "%s: string value: %s",
+ __func__, wpa_debug_show_keys ? v : "[omitted]");
+ entry->str_value = os_strdup(v);
+ if (entry->str_value == NULL)
+ return FALSE;
+ break;
+ case DBUS_TYPE_BOOLEAN:
+ dbus_message_iter_get_basic(iter, &entry->bool_value);
+ wpa_printf(MSG_MSGDUMP, "%s: boolean value: %d",
+ __func__, entry->bool_value);
+ break;
+ case DBUS_TYPE_BYTE:
+ dbus_message_iter_get_basic(iter, &entry->byte_value);
+ wpa_printf(MSG_MSGDUMP, "%s: byte value: %d",
+ __func__, entry->byte_value);
+ break;
+ case DBUS_TYPE_INT16:
+ dbus_message_iter_get_basic(iter, &entry->int16_value);
+ wpa_printf(MSG_MSGDUMP, "%s: int16 value: %d",
+ __func__, entry->int16_value);
+ break;
+ case DBUS_TYPE_UINT16:
+ dbus_message_iter_get_basic(iter, &entry->uint16_value);
+ wpa_printf(MSG_MSGDUMP, "%s: uint16 value: %d",
+ __func__, entry->uint16_value);
+ break;
+ case DBUS_TYPE_INT32:
+ dbus_message_iter_get_basic(iter, &entry->int32_value);
+ wpa_printf(MSG_MSGDUMP, "%s: int32 value: %d",
+ __func__, entry->int32_value);
+ break;
+ case DBUS_TYPE_UINT32:
+ dbus_message_iter_get_basic(iter, &entry->uint32_value);
+ wpa_printf(MSG_MSGDUMP, "%s: uint32 value: %d",
+ __func__, entry->uint32_value);
+ break;
+ case DBUS_TYPE_INT64:
+ dbus_message_iter_get_basic(iter, &entry->int64_value);
+ wpa_printf(MSG_MSGDUMP, "%s: int64 value: %lld",
+ __func__, (long long int) entry->int64_value);
+ break;
+ case DBUS_TYPE_UINT64:
+ dbus_message_iter_get_basic(iter, &entry->uint64_value);
+ wpa_printf(MSG_MSGDUMP, "%s: uint64 value: %llu",
+ __func__,
+ (unsigned long long int) entry->uint64_value);
+ break;
+ case DBUS_TYPE_DOUBLE:
+ dbus_message_iter_get_basic(iter, &entry->double_value);
+ wpa_printf(MSG_MSGDUMP, "%s: double value: %f",
+ __func__, entry->double_value);
+ break;
+ case DBUS_TYPE_ARRAY:
+ return _wpa_dbus_dict_entry_get_array(iter, entry);
+ default:
+ wpa_printf(MSG_MSGDUMP, "%s: unsupported type %c",
+ __func__, entry->type);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+
+/**
+ * Read the current key/value entry from the dict. Entries are dynamically
+ * allocated when needed and must be freed after use with the
+ * wpa_dbus_dict_entry_clear() function.
+ *
+ * The returned entry object will be filled with the type and value of the next
+ * entry in the dict, or the type will be DBUS_TYPE_INVALID if an error
+ * occurred.
+ *
+ * @param iter_dict A valid DBusMessageIter returned from
+ * wpa_dbus_dict_open_read()
+ * @param entry A valid dict entry object into which the dict key and value
+ * will be placed
+ * @return TRUE on success, FALSE on failure
+ *
+ */
+dbus_bool_t wpa_dbus_dict_get_entry(DBusMessageIter *iter_dict,
+ struct wpa_dbus_dict_entry * entry)
+{
+ DBusMessageIter iter_dict_entry, iter_dict_val;
+ int type;
+ const char *key;
+
+ if (!iter_dict || !entry ||
+ dbus_message_iter_get_arg_type(iter_dict) != DBUS_TYPE_DICT_ENTRY) {
+ wpa_printf(MSG_DEBUG, "%s: not a dict entry", __func__);
+ goto error;
+ }
+
+ dbus_message_iter_recurse(iter_dict, &iter_dict_entry);
+ dbus_message_iter_get_basic(&iter_dict_entry, &key);
+ wpa_printf(MSG_MSGDUMP, "%s: dict entry key: %s", __func__, key);
+ entry->key = key;
+
+ if (!dbus_message_iter_next(&iter_dict_entry)) {
+ wpa_printf(MSG_DEBUG, "%s: no variant in dict entry", __func__);
+ goto error;
+ }
+ type = dbus_message_iter_get_arg_type(&iter_dict_entry);
+ if (type != DBUS_TYPE_VARIANT) {
+ wpa_printf(MSG_DEBUG,
+ "%s: unexpected dict entry variant type: %c",
+ __func__, type);
+ goto error;
+ }
+
+ dbus_message_iter_recurse(&iter_dict_entry, &iter_dict_val);
+ entry->type = dbus_message_iter_get_arg_type(&iter_dict_val);
+ wpa_printf(MSG_MSGDUMP, "%s: dict entry variant content type: %c",
+ __func__, entry->type);
+ entry->array_type = DBUS_TYPE_INVALID;
+ if (!_wpa_dbus_dict_fill_value_from_variant(entry, &iter_dict_val)) {
+ wpa_printf(MSG_DEBUG,
+ "%s: failed to fetch dict values from variant",
+ __func__);
+ goto error;
+ }
+
+ dbus_message_iter_next(iter_dict);
+ return TRUE;
+
+error:
+ if (entry) {
+ wpa_dbus_dict_entry_clear(entry);
+ entry->type = DBUS_TYPE_INVALID;
+ entry->array_type = DBUS_TYPE_INVALID;
+ }
+
+ return FALSE;
+}
+
+
+/**
+ * Return whether or not there are additional dictionary entries.
+ *
+ * @param iter_dict A valid DBusMessageIter returned from
+ * wpa_dbus_dict_open_read()
+ * @return TRUE if more dict entries exists, FALSE if no more dict entries
+ * exist
+ */
+dbus_bool_t wpa_dbus_dict_has_dict_entry(DBusMessageIter *iter_dict)
+{
+ if (!iter_dict)
+ return FALSE;
+ return dbus_message_iter_get_arg_type(iter_dict) ==
+ DBUS_TYPE_DICT_ENTRY;
+}
+
+
+/**
+ * Free any memory used by the entry object.
+ *
+ * @param entry The entry object
+ */
+void wpa_dbus_dict_entry_clear(struct wpa_dbus_dict_entry *entry)
+{
+ unsigned int i;
+
+ if (!entry)
+ return;
+ switch (entry->type) {
+ case DBUS_TYPE_OBJECT_PATH:
+ case DBUS_TYPE_STRING:
+ os_free(entry->str_value);
+ break;
+ case DBUS_TYPE_ARRAY:
+ switch (entry->array_type) {
+ case DBUS_TYPE_BYTE:
+ os_free(entry->bytearray_value);
+ break;
+ case DBUS_TYPE_STRING:
+ if (!entry->strarray_value)
+ break;
+ for (i = 0; i < entry->array_len; i++)
+ os_free(entry->strarray_value[i]);
+ os_free(entry->strarray_value);
+ break;
+ case WPAS_DBUS_TYPE_BINARRAY:
+ for (i = 0; i < entry->array_len; i++)
+ wpabuf_free(entry->binarray_value[i]);
+ os_free(entry->binarray_value);
+ break;
+ }
+ break;
+ }
+
+ os_memset(entry, 0, sizeof(struct wpa_dbus_dict_entry));
+}
projects / mech_eap.git / blobdiff