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hostap/wpa_supplicant/dbus/dbus_new_handlers.c
Jouni Malinen f9cd8587fb dbus: Deauthenticate instead of disassociate on disconnect command 
This clears up authentication state in the driver and in case of
cfg80211, unlocks the BSS entry for the previously used AP. The
previous commit cf4783e35f changed
only the ctrl_iface DISCONNECT command behavior; this new commit
does the same for D-Bus commands.
2010-08-18 21:27:30 +03:00

2951 lines
80 KiB
C
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/*
* WPA Supplicant / dbus-based control interface
* Copyright (c) 2006, Dan Williams <dcbw@redhat.com> and Red Hat, Inc.
* Copyright (c) 2009-2010, Witold Sowa <witold.sowa@gmail.com>
* Copyright (c) 2009, Jouni Malinen <j@w1.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Alternatively, this software may be distributed under the terms of BSD
* license.
*
* See README and COPYING for more details.
*/
#include "includes.h"
#include "common.h"
#include "common/ieee802_11_defs.h"
#include "eap_peer/eap_methods.h"
#include "eapol_supp/eapol_supp_sm.h"
#include "rsn_supp/wpa.h"
#include "../config.h"
#include "../wpa_supplicant_i.h"
#include "../driver_i.h"
#include "../notify.h"
#include "../wpas_glue.h"
#include "../bss.h"
#include "../scan.h"
#include "dbus_new_helpers.h"
#include "dbus_new.h"
#include "dbus_new_handlers.h"
#include "dbus_dict_helpers.h"
extern int wpa_debug_level;
extern int wpa_debug_show_keys;
extern int wpa_debug_timestamp;
static const char *debug_strings[] = {
"msgdump", "debug", "info", "warning", "error", NULL
};
/**
* wpas_dbus_new_decompose_object_path - Decompose an interface object path into parts
* @path: The dbus object path
* @network: (out) the configured network this object path refers to, if any
* @bssid: (out) the scanned bssid this object path refers to, if any
* Returns: The object path of the network interface this path refers to
*
* For a given object path, decomposes the object path into object id, network,
* and BSSID parts, if those parts exist.
*/
static char * wpas_dbus_new_decompose_object_path(const char *path,
char **network,
char **bssid)
{
const unsigned int dev_path_prefix_len =
strlen(WPAS_DBUS_NEW_PATH_INTERFACES "/");
char *obj_path_only;
char *next_sep;
/* Be a bit paranoid about path */
if (!path || os_strncmp(path, WPAS_DBUS_NEW_PATH_INTERFACES "/",
dev_path_prefix_len))
return NULL;
/* Ensure there's something at the end of the path */
if ((path + dev_path_prefix_len)[0] == '\0')
return NULL;
obj_path_only = os_strdup(path);
if (obj_path_only == NULL)
return NULL;
next_sep = os_strchr(obj_path_only + dev_path_prefix_len, '/');
if (next_sep != NULL) {
const char *net_part = os_strstr(
next_sep, WPAS_DBUS_NEW_NETWORKS_PART "/");
const char *bssid_part = os_strstr(
next_sep, WPAS_DBUS_NEW_BSSIDS_PART "/");
if (network && net_part) {
/* Deal with a request for a configured network */
const char *net_name = net_part +
os_strlen(WPAS_DBUS_NEW_NETWORKS_PART "/");
*network = NULL;
if (os_strlen(net_name))
*network = os_strdup(net_name);
} else if (bssid && bssid_part) {
/* Deal with a request for a scanned BSSID */
const char *bssid_name = bssid_part +
os_strlen(WPAS_DBUS_NEW_BSSIDS_PART "/");
if (strlen(bssid_name))
*bssid = os_strdup(bssid_name);
else
*bssid = NULL;
}
/* Cut off interface object path before "/" */
*next_sep = '\0';
}
return obj_path_only;
}
/**
* wpas_dbus_error_unknown_error - Return a new InvalidArgs error message
* @message: Pointer to incoming dbus message this error refers to
* @arg: Optional string appended to error message
* Returns: a dbus error message
*
* Convenience function to create and return an UnknownError
*/
DBusMessage * wpas_dbus_error_unknown_error(DBusMessage *message,
const char *arg)
{
return dbus_message_new_error(message, WPAS_DBUS_ERROR_UNKNOWN_ERROR,
arg);
}
/**
* wpas_dbus_error_iface_unknown - Return a new invalid interface error message
* @message: Pointer to incoming dbus message this error refers to
* Returns: A dbus error message
*
* Convenience function to create and return an invalid interface error
*/
static DBusMessage * wpas_dbus_error_iface_unknown(DBusMessage *message)
{
return dbus_message_new_error(message, WPAS_DBUS_ERROR_IFACE_UNKNOWN,
"wpa_supplicant knows nothing about "
"this interface.");
}
/**
* wpas_dbus_error_network_unknown - Return a new NetworkUnknown error message
* @message: Pointer to incoming dbus message this error refers to
* Returns: a dbus error message
*
* Convenience function to create and return an invalid network error
*/
static DBusMessage * wpas_dbus_error_network_unknown(DBusMessage *message)
{
return dbus_message_new_error(message, WPAS_DBUS_ERROR_NETWORK_UNKNOWN,
"There is no such a network in this "
"interface.");
}
/**
* wpas_dbus_error_invalid_args - Return a new InvalidArgs error message
* @message: Pointer to incoming dbus message this error refers to
* Returns: a dbus error message
*
* Convenience function to create and return an invalid options error
*/
DBusMessage * wpas_dbus_error_invalid_args(DBusMessage *message,
const char *arg)
{
DBusMessage *reply;
reply = dbus_message_new_error(message, WPAS_DBUS_ERROR_INVALID_ARGS,
"Did not receive correct message "
"arguments.");
if (arg != NULL)
dbus_message_append_args(reply, DBUS_TYPE_STRING, &arg,
DBUS_TYPE_INVALID);
return reply;
}
static const char *dont_quote[] = {
"key_mgmt", "proto", "pairwise", "auth_alg", "group", "eap",
"opensc_engine_path", "pkcs11_engine_path", "pkcs11_module_path",
"bssid", NULL
};
static dbus_bool_t should_quote_opt(const char *key)
{
int i = 0;
while (dont_quote[i] != NULL) {
if (os_strcmp(key, dont_quote[i]) == 0)
return FALSE;
i++;
}
return TRUE;
}
/**
* get_iface_by_dbus_path - Get a new network interface
* @global: Pointer to global data from wpa_supplicant_init()
* @path: Pointer to a dbus object path representing an interface
* Returns: Pointer to the interface or %NULL if not found
*/
static struct wpa_supplicant * get_iface_by_dbus_path(
struct wpa_global *global, const char *path)
{
struct wpa_supplicant *wpa_s;
for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
if (os_strcmp(wpa_s->dbus_new_path, path) == 0)
return wpa_s;
}
return NULL;
}
/**
* set_network_properties - Set properties of a configured network
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* @ssid: wpa_ssid structure for a configured network
* @iter: DBus message iterator containing dictionary of network
* properties to set.
* Returns: NULL when succeed or DBus error on failure
*
* Sets network configuration with parameters given id DBus dictionary
*/
static DBusMessage * set_network_properties(DBusMessage *message,
struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid,
DBusMessageIter *iter)
{
struct wpa_dbus_dict_entry entry = { .type = DBUS_TYPE_STRING };
DBusMessage *reply = NULL;
DBusMessageIter iter_dict;
if (!wpa_dbus_dict_open_read(iter, &iter_dict))
return wpas_dbus_error_invalid_args(message, NULL);
while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
char *value = NULL;
size_t size = 50;
int ret;
if (!wpa_dbus_dict_get_entry(&iter_dict, &entry)) {
reply = wpas_dbus_error_invalid_args(message, NULL);
break;
}
if (entry.type == DBUS_TYPE_ARRAY &&
entry.array_type == DBUS_TYPE_BYTE) {
if (entry.array_len <= 0)
goto error;
size = entry.array_len * 2 + 1;
value = os_zalloc(size);
if (value == NULL)
goto error;
ret = wpa_snprintf_hex(value, size,
(u8 *) entry.bytearray_value,
entry.array_len);
if (ret <= 0)
goto error;
} else if (entry.type == DBUS_TYPE_STRING) {
if (should_quote_opt(entry.key)) {
size = os_strlen(entry.str_value);
if (size <= 0)
goto error;
size += 3;
value = os_zalloc(size);
if (value == NULL)
goto error;
ret = os_snprintf(value, size, "\"%s\"",
entry.str_value);
if (ret < 0 || (size_t) ret != (size - 1))
goto error;
} else {
value = os_strdup(entry.str_value);
if (value == NULL)
goto error;
}
} else if (entry.type == DBUS_TYPE_UINT32) {
value = os_zalloc(size);
if (value == NULL)
goto error;
ret = os_snprintf(value, size, "%u",
entry.uint32_value);
if (ret <= 0)
goto error;
} else if (entry.type == DBUS_TYPE_INT32) {
value = os_zalloc(size);
if (value == NULL)
goto error;
ret = os_snprintf(value, size, "%d",
entry.int32_value);
if (ret <= 0)
goto error;
} else
goto error;
if (wpa_config_set(ssid, entry.key, value, 0) < 0)
goto error;
if ((os_strcmp(entry.key, "psk") == 0 &&
value[0] == '"' && ssid->ssid_len) ||
(strcmp(entry.key, "ssid") == 0 && ssid->passphrase))
wpa_config_update_psk(ssid);
else if (os_strcmp(entry.key, "priority") == 0)
wpa_config_update_prio_list(wpa_s->conf);
os_free(value);
wpa_dbus_dict_entry_clear(&entry);
continue;
error:
os_free(value);
reply = wpas_dbus_error_invalid_args(message, entry.key);
wpa_dbus_dict_entry_clear(&entry);
break;
}
return reply;
}
/**
* wpas_dbus_simple_property_getter - Get basic type property
* @message: Pointer to incoming dbus message
* @type: DBus type of property (must be basic type)
* @val: pointer to place holding property value
* Returns: The DBus message containing response for Properties.Get call
* or DBus error message if error occurred.
*
* Generic getter for basic type properties. Type is required to be basic.
*/
DBusMessage * wpas_dbus_simple_property_getter(DBusMessage *message,
const int type, const void *val)
{
DBusMessage *reply = NULL;
DBusMessageIter iter, variant_iter;
if (!dbus_type_is_basic(type)) {
wpa_printf(MSG_ERROR, "dbus: wpas_dbus_simple_property_getter:"
" given type is not basic");
return wpas_dbus_error_unknown_error(message, NULL);
}
if (message == NULL)
reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
else
reply = dbus_message_new_method_return(message);
if (reply != NULL) {
dbus_message_iter_init_append(reply, &iter);
if (!dbus_message_iter_open_container(
&iter, DBUS_TYPE_VARIANT,
wpa_dbus_type_as_string(type), &variant_iter) ||
!dbus_message_iter_append_basic(&variant_iter, type,
val) ||
!dbus_message_iter_close_container(&iter, &variant_iter)) {
wpa_printf(MSG_ERROR, "dbus: "
"wpas_dbus_simple_property_getter: out of "
"memory to put property value into "
"message");
dbus_message_unref(reply);
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
}
} else {
wpa_printf(MSG_ERROR, "dbus: wpas_dbus_simple_property_getter:"
" out of memory to return property value");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
return reply;
}
/**
* wpas_dbus_simple_property_setter - Set basic type property
* @message: Pointer to incoming dbus message
* @type: DBus type of property (must be basic type)
* @val: pointer to place where value being set will be stored
* Returns: NULL or DBus error message if error occurred.
*
* Generic setter for basic type properties. Type is required to be basic.
*/
DBusMessage * wpas_dbus_simple_property_setter(DBusMessage *message,
const int type, void *val)
{
DBusMessageIter iter, variant_iter;
if (!dbus_type_is_basic(type)) {
wpa_printf(MSG_ERROR, "dbus: wpas_dbus_simple_property_setter:"
" given type is not basic");
return wpas_dbus_error_unknown_error(message, NULL);
}
if (!dbus_message_iter_init(message, &iter)) {
wpa_printf(MSG_ERROR, "dbus: wpas_dbus_simple_property_setter:"
" out of memory to return scanning state");
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
/* omit first and second argument and get value from third */
dbus_message_iter_next(&iter);
dbus_message_iter_next(&iter);
dbus_message_iter_recurse(&iter, &variant_iter);
if (dbus_message_iter_get_arg_type(&variant_iter) != type) {
wpa_printf(MSG_DEBUG, "dbus: wpas_dbus_simple_property_setter:"
" wrong property type");
return wpas_dbus_error_invalid_args(message,
"wrong property type");
}
dbus_message_iter_get_basic(&variant_iter, val);
return NULL;
}
/**
* wpas_dbus_simple_array_property_getter - Get array type property
* @message: Pointer to incoming dbus message
* @type: DBus type of property array elements (must be basic type)
* @array: pointer to array of elements to put into response message
* @array_len: length of above array
* Returns: The DBus message containing response for Properties.Get call
* or DBus error message if error occurred.
*
* Generic getter for array type properties. Array elements type is
* required to be basic.
*/
DBusMessage * wpas_dbus_simple_array_property_getter(DBusMessage *message,
const int type,
const void *array,
size_t array_len)
{
DBusMessage *reply = NULL;
DBusMessageIter iter, variant_iter, array_iter;
char type_str[] = "a?"; /* ? will be replaced with subtype letter; */
const char *sub_type_str;
size_t element_size, i;
if (!dbus_type_is_basic(type)) {
wpa_printf(MSG_ERROR, "dbus: "
"wpas_dbus_simple_array_property_getter: given "
"type is not basic");
return wpas_dbus_error_unknown_error(message, NULL);
}
sub_type_str = wpa_dbus_type_as_string(type);
type_str[1] = sub_type_str[0];
if (message == NULL)
reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
else
reply = dbus_message_new_method_return(message);
if (reply == NULL) {
wpa_printf(MSG_ERROR, "dbus: "
"wpas_dbus_simple_array_property_getter: out of "
"memory to create return message");
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
dbus_message_iter_init_append(reply, &iter);
if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT,
type_str, &variant_iter) ||
!dbus_message_iter_open_container(&variant_iter, DBUS_TYPE_ARRAY,
sub_type_str, &array_iter)) {
wpa_printf(MSG_ERROR, "dbus: "
"wpas_dbus_simple_array_property_getter: out of "
"memory to open container");
dbus_message_unref(reply);
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
switch(type) {
case DBUS_TYPE_BYTE:
case DBUS_TYPE_BOOLEAN:
element_size = 1;
break;
case DBUS_TYPE_INT16:
case DBUS_TYPE_UINT16:
element_size = sizeof(uint16_t);
break;
case DBUS_TYPE_INT32:
case DBUS_TYPE_UINT32:
element_size = sizeof(uint32_t);
break;
case DBUS_TYPE_INT64:
case DBUS_TYPE_UINT64:
element_size = sizeof(uint64_t);
break;
case DBUS_TYPE_DOUBLE:
element_size = sizeof(double);
break;
case DBUS_TYPE_STRING:
case DBUS_TYPE_OBJECT_PATH:
element_size = sizeof(char *);
break;
default:
wpa_printf(MSG_ERROR, "dbus: "
"wpas_dbus_simple_array_property_getter: "
"fatal: unknown element type");
element_size = 1;
break;
}
for (i = 0; i < array_len; i++) {
dbus_message_iter_append_basic(&array_iter, type,
array + i * element_size);
}
if (!dbus_message_iter_close_container(&variant_iter, &array_iter) ||
!dbus_message_iter_close_container(&iter, &variant_iter)) {
wpa_printf(MSG_ERROR, "dbus: "
"wpas_dbus_simple_array_property_getter: out of "
"memory to close container");
dbus_message_unref(reply);
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
return reply;
}
/**
* wpas_dbus_handler_create_interface - Request registration of a network iface
* @message: Pointer to incoming dbus message
* @global: %wpa_supplicant global data structure
* Returns: The object path of the new interface object,
* or a dbus error message with more information
*
* Handler function for "CreateInterface" method call. Handles requests
* by dbus clients to register a network interface that wpa_supplicant
* will manage.
*/
DBusMessage * wpas_dbus_handler_create_interface(DBusMessage *message,
struct wpa_global *global)
{
DBusMessageIter iter_dict;
DBusMessage *reply = NULL;
DBusMessageIter iter;
struct wpa_dbus_dict_entry entry;
char *driver = NULL;
char *ifname = NULL;
char *bridge_ifname = NULL;
dbus_message_iter_init(message, &iter);
if (!wpa_dbus_dict_open_read(&iter, &iter_dict))
goto error;
while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
if (!wpa_dbus_dict_get_entry(&iter_dict, &entry))
goto error;
if (!strcmp(entry.key, "Driver") &&
(entry.type == DBUS_TYPE_STRING)) {
driver = os_strdup(entry.str_value);
wpa_dbus_dict_entry_clear(&entry);
if (driver == NULL)
goto error;
} else if (!strcmp(entry.key, "Ifname") &&
(entry.type == DBUS_TYPE_STRING)) {
ifname = os_strdup(entry.str_value);
wpa_dbus_dict_entry_clear(&entry);
if (ifname == NULL)
goto error;
} else if (!strcmp(entry.key, "BridgeIfname") &&
(entry.type == DBUS_TYPE_STRING)) {
bridge_ifname = os_strdup(entry.str_value);
wpa_dbus_dict_entry_clear(&entry);
if (bridge_ifname == NULL)
goto error;
} else {
wpa_dbus_dict_entry_clear(&entry);
goto error;
}
}
if (ifname == NULL)
goto error; /* Required Ifname argument missing */
/*
* Try to get the wpa_supplicant record for this iface, return
* an error if we already control it.
*/
if (wpa_supplicant_get_iface(global, ifname) != NULL) {
reply = dbus_message_new_error(message,
WPAS_DBUS_ERROR_IFACE_EXISTS,
"wpa_supplicant already "
"controls this interface.");
} else {
struct wpa_supplicant *wpa_s;
struct wpa_interface iface;
os_memset(&iface, 0, sizeof(iface));
iface.driver = driver;
iface.ifname = ifname;
iface.bridge_ifname = bridge_ifname;
/* Otherwise, have wpa_supplicant attach to it. */
if ((wpa_s = wpa_supplicant_add_iface(global, &iface))) {
const char *path = wpa_s->dbus_new_path;
reply = dbus_message_new_method_return(message);
dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH,
&path, DBUS_TYPE_INVALID);
} else {
reply = wpas_dbus_error_unknown_error(
message, "wpa_supplicant couldn't grab this "
"interface.");
}
}
out:
os_free(driver);
os_free(ifname);
os_free(bridge_ifname);
return reply;
error:
reply = wpas_dbus_error_invalid_args(message, NULL);
goto out;
}
/**
* wpas_dbus_handler_remove_interface - Request deregistration of an interface
* @message: Pointer to incoming dbus message
* @global: wpa_supplicant global data structure
* Returns: a dbus message containing a UINT32 indicating success (1) or
* failure (0), or returns a dbus error message with more information
*
* Handler function for "removeInterface" method call. Handles requests
* by dbus clients to deregister a network interface that wpa_supplicant
* currently manages.
*/
DBusMessage * wpas_dbus_handler_remove_interface(DBusMessage *message,
struct wpa_global *global)
{
struct wpa_supplicant *wpa_s;
char *path;
DBusMessage *reply = NULL;
dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID);
wpa_s = get_iface_by_dbus_path(global, path);
if (wpa_s == NULL)
reply = wpas_dbus_error_iface_unknown(message);
else if (wpa_supplicant_remove_iface(global, wpa_s)) {
reply = wpas_dbus_error_unknown_error(
message, "wpa_supplicant couldn't remove this "
"interface.");
}
return reply;
}
/**
* wpas_dbus_handler_get_interface - Get the object path for an interface name
* @message: Pointer to incoming dbus message
* @global: %wpa_supplicant global data structure
* Returns: The object path of the interface object,
* or a dbus error message with more information
*
* Handler function for "getInterface" method call.
*/
DBusMessage * wpas_dbus_handler_get_interface(DBusMessage *message,
struct wpa_global *global)
{
DBusMessage *reply = NULL;
const char *ifname;
const char *path;
struct wpa_supplicant *wpa_s;
dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &ifname,
DBUS_TYPE_INVALID);
wpa_s = wpa_supplicant_get_iface(global, ifname);
if (wpa_s == NULL)
return wpas_dbus_error_iface_unknown(message);
path = wpa_s->dbus_new_path;
reply = dbus_message_new_method_return(message);
if (reply == NULL)
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
if (!dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID)) {
dbus_message_unref(reply);
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
return reply;
}
/**
* wpas_dbus_getter_debug_level - Get debug level
* @message: Pointer to incoming dbus message
* @global: %wpa_supplicant global data structure
* Returns: DBus message with value of debug level
*
* Getter for "DebugLevel" property.
*/
DBusMessage * wpas_dbus_getter_debug_level(DBusMessage *message,
struct wpa_global *global)
{
const char *str;
int idx = wpa_debug_level;
if (idx < 0)
idx = 0;
if (idx > 4)
idx = 4;
str = debug_strings[idx];
return wpas_dbus_simple_property_getter(message, DBUS_TYPE_STRING,
&str);
}
/**
* wpas_dbus_getter_debug_timestamp - Get debug timestamp
* @message: Pointer to incoming dbus message
* @global: %wpa_supplicant global data structure
* Returns: DBus message with value of debug timestamp
*
* Getter for "DebugTimestamp" property.
*/
DBusMessage * wpas_dbus_getter_debug_timestamp(DBusMessage *message,
struct wpa_global *global)
{
return wpas_dbus_simple_property_getter(message, DBUS_TYPE_BOOLEAN,
&wpa_debug_timestamp);
}
/**
* wpas_dbus_getter_debug_show_keys - Get debug show keys
* @message: Pointer to incoming dbus message
* @global: %wpa_supplicant global data structure
* Returns: DBus message with value of debug show_keys
*
* Getter for "DebugShowKeys" property.
*/
DBusMessage * wpas_dbus_getter_debug_show_keys(DBusMessage *message,
struct wpa_global *global)
{
return wpas_dbus_simple_property_getter(message, DBUS_TYPE_BOOLEAN,
&wpa_debug_show_keys);
}
/**
* wpas_dbus_setter_debug_level - Set debug level
* @message: Pointer to incoming dbus message
* @global: %wpa_supplicant global data structure
* Returns: %NULL or DBus error message
*
* Setter for "DebugLevel" property.
*/
DBusMessage * wpas_dbus_setter_debug_level(DBusMessage *message,
struct wpa_global *global)
{
DBusMessage *reply;
const char *str = NULL;
int i, val = -1;
reply = wpas_dbus_simple_property_setter(message, DBUS_TYPE_STRING,
&str);
if (reply)
return reply;
for (i = 0; debug_strings[i]; i++)
if (os_strcmp(debug_strings[i], str) == 0) {
val = i;
break;
}
if (val < 0 ||
wpa_supplicant_set_debug_params(global, val, wpa_debug_timestamp,
wpa_debug_show_keys)) {
dbus_message_unref(reply);
return wpas_dbus_error_invalid_args(
message, "Wrong debug level value");
}
return NULL;
}
/**
* wpas_dbus_setter_debug_timestamp - Set debug timestamp
* @message: Pointer to incoming dbus message
* @global: %wpa_supplicant global data structure
* Returns: %NULL or DBus error message
*
* Setter for "DebugTimestamp" property.
*/
DBusMessage * wpas_dbus_setter_debug_timestamp(DBusMessage *message,
struct wpa_global *global)
{
DBusMessage *reply;
dbus_bool_t val;
reply = wpas_dbus_simple_property_setter(message, DBUS_TYPE_BOOLEAN,
&val);
if (reply)
return reply;
wpa_supplicant_set_debug_params(global, wpa_debug_level, val ? 1 : 0,
wpa_debug_show_keys);
return NULL;
}
/**
* wpas_dbus_setter_debug_show_keys - Set debug show keys
* @message: Pointer to incoming dbus message
* @global: %wpa_supplicant global data structure
* Returns: %NULL or DBus error message
*
* Setter for "DebugShowKeys" property.
*/
DBusMessage * wpas_dbus_setter_debug_show_keys(DBusMessage *message,
struct wpa_global *global)
{
DBusMessage *reply;
dbus_bool_t val;
reply = wpas_dbus_simple_property_setter(message, DBUS_TYPE_BOOLEAN,
&val);
if (reply)
return reply;
wpa_supplicant_set_debug_params(global, wpa_debug_level,
wpa_debug_timestamp,
val ? 1 : 0);
return NULL;
}
/**
* wpas_dbus_getter_interfaces - Request registered interfaces list
* @message: Pointer to incoming dbus message
* @global: %wpa_supplicant global data structure
* Returns: The object paths array containing registered interfaces
* objects paths or DBus error on failure
*
* Getter for "Interfaces" property. Handles requests
* by dbus clients to return list of registered interfaces objects
* paths
*/
DBusMessage * wpas_dbus_getter_interfaces(DBusMessage *message,
struct wpa_global *global)
{
DBusMessage *reply = NULL;
struct wpa_supplicant *wpa_s;
const char **paths;
unsigned int i = 0, num = 0;
for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next)
num++;
paths = os_zalloc(num * sizeof(char*));
if (!paths) {
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next)
paths[i] = wpa_s->dbus_new_path;
reply = wpas_dbus_simple_array_property_getter(message,
DBUS_TYPE_OBJECT_PATH,
paths, num);
os_free(paths);
return reply;
}
/**
* wpas_dbus_getter_eap_methods - Request supported EAP methods list
* @message: Pointer to incoming dbus message
* @nothing: not used argument. may be NULL or anything else
* Returns: The object paths array containing supported EAP methods
* represented by strings or DBus error on failure
*
* Getter for "EapMethods" property. Handles requests
* by dbus clients to return list of strings with supported EAP methods
*/
DBusMessage * wpas_dbus_getter_eap_methods(DBusMessage *message, void *nothing)
{
DBusMessage *reply = NULL;
char **eap_methods;
size_t num_items = 0;
eap_methods = eap_get_names_as_string_array(&num_items);
if (!eap_methods) {
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
reply = wpas_dbus_simple_array_property_getter(message,
DBUS_TYPE_STRING,
eap_methods, num_items);
while (num_items)
os_free(eap_methods[--num_items]);
os_free(eap_methods);
return reply;
}
static int wpas_dbus_get_scan_type(DBusMessage *message, DBusMessageIter *var,
char **type, DBusMessage **reply)
{
if (dbus_message_iter_get_arg_type(var) != DBUS_TYPE_STRING) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
"Type must be a string");
*reply = wpas_dbus_error_invalid_args(
message, "Wrong Type value type. String required");
return -1;
}
dbus_message_iter_get_basic(var, type);
return 0;
}
static int wpas_dbus_get_scan_ssids(DBusMessage *message, DBusMessageIter *var,
struct wpa_driver_scan_params *params,
DBusMessage **reply)
{
struct wpa_driver_scan_ssid *ssids = params->ssids;
size_t ssids_num = 0;
u8 *ssid;
DBusMessageIter array_iter, sub_array_iter;
char *val;
int len;
if (dbus_message_iter_get_arg_type(var) != DBUS_TYPE_ARRAY) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: ssids "
"must be an array of arrays of bytes");
*reply = wpas_dbus_error_invalid_args(
message, "Wrong SSIDs value type. Array of arrays of "
"bytes required");
return -1;
}
dbus_message_iter_recurse(var, &array_iter);
if (dbus_message_iter_get_arg_type(&array_iter) != DBUS_TYPE_ARRAY ||
dbus_message_iter_get_element_type(&array_iter) != DBUS_TYPE_BYTE)
{
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: ssids "
"must be an array of arrays of bytes");
*reply = wpas_dbus_error_invalid_args(
message, "Wrong SSIDs value type. Array of arrays of "
"bytes required");
return -1;
}
while (dbus_message_iter_get_arg_type(&array_iter) == DBUS_TYPE_ARRAY)
{
if (ssids_num >= WPAS_MAX_SCAN_SSIDS) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
"Too many ssids specified on scan dbus "
"call");
*reply = wpas_dbus_error_invalid_args(
message, "Too many ssids specified. Specify "
"at most four");
return -1;
}
dbus_message_iter_recurse(&array_iter, &sub_array_iter);
dbus_message_iter_get_fixed_array(&sub_array_iter, &val, &len);
if (len == 0) {
dbus_message_iter_next(&array_iter);
continue;
}
ssid = os_malloc(len);
if (ssid == NULL) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
"out of memory. Cannot allocate memory for "
"SSID");
*reply = dbus_message_new_error(
message, DBUS_ERROR_NO_MEMORY, NULL);
return -1;
}
os_memcpy(ssid, val, len);
ssids[ssids_num].ssid = ssid;
ssids[ssids_num].ssid_len = len;
dbus_message_iter_next(&array_iter);
ssids_num++;
}
params->num_ssids = ssids_num;
return 0;
}
static int wpas_dbus_get_scan_ies(DBusMessage *message, DBusMessageIter *var,
struct wpa_driver_scan_params *params,
DBusMessage **reply)
{
u8 *ies = NULL, *nies;
int ies_len = 0;
DBusMessageIter array_iter, sub_array_iter;
char *val;
int len;
if (dbus_message_iter_get_arg_type(var) != DBUS_TYPE_ARRAY) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: ies must "
"be an array of arrays of bytes");
*reply = wpas_dbus_error_invalid_args(
message, "Wrong IEs value type. Array of arrays of "
"bytes required");
return -1;
}
dbus_message_iter_recurse(var, &array_iter);
if (dbus_message_iter_get_arg_type(&array_iter) != DBUS_TYPE_ARRAY ||
dbus_message_iter_get_element_type(&array_iter) != DBUS_TYPE_BYTE)
{
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: ies must "
"be an array of arrays of bytes");
*reply = wpas_dbus_error_invalid_args(
message, "Wrong IEs value type. Array required");
return -1;
}
while (dbus_message_iter_get_arg_type(&array_iter) == DBUS_TYPE_ARRAY)
{
dbus_message_iter_recurse(&array_iter, &sub_array_iter);
dbus_message_iter_get_fixed_array(&sub_array_iter, &val, &len);
if (len == 0) {
dbus_message_iter_next(&array_iter);
continue;
}
nies = os_realloc(ies, ies_len + len);
if (nies == NULL) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
"out of memory. Cannot allocate memory for "
"IE");
os_free(ies);
*reply = dbus_message_new_error(
message, DBUS_ERROR_NO_MEMORY, NULL);
return -1;
}
ies = nies;
os_memcpy(ies + ies_len, val, len);
ies_len += len;
dbus_message_iter_next(&array_iter);
}
params->extra_ies = ies;
params->extra_ies_len = ies_len;
return 0;
}
static int wpas_dbus_get_scan_channels(DBusMessage *message,
DBusMessageIter *var,
struct wpa_driver_scan_params *params,
DBusMessage **reply)
{
DBusMessageIter array_iter, sub_array_iter;
int *freqs = NULL, *nfreqs;
int freqs_num = 0;
if (dbus_message_iter_get_arg_type(var) != DBUS_TYPE_ARRAY) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
"Channels must be an array of structs");
*reply = wpas_dbus_error_invalid_args(
message, "Wrong Channels value type. Array of structs "
"required");
return -1;
}
dbus_message_iter_recurse(var, &array_iter);
if (dbus_message_iter_get_arg_type(&array_iter) != DBUS_TYPE_STRUCT) {
wpa_printf(MSG_DEBUG,
"wpas_dbus_handler_scan[dbus]: Channels must be an "
"array of structs");
*reply = wpas_dbus_error_invalid_args(
message, "Wrong Channels value type. Array of structs "
"required");
return -1;
}
while (dbus_message_iter_get_arg_type(&array_iter) == DBUS_TYPE_STRUCT)
{
int freq, width;
dbus_message_iter_recurse(&array_iter, &sub_array_iter);
if (dbus_message_iter_get_arg_type(&sub_array_iter) !=
DBUS_TYPE_UINT32) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
"Channel must by specified by struct of "
"two UINT32s %c",
dbus_message_iter_get_arg_type(
&sub_array_iter));
*reply = wpas_dbus_error_invalid_args(
message, "Wrong Channel struct. Two UINT32s "
"required");
os_free(freqs);
return -1;
}
dbus_message_iter_get_basic(&sub_array_iter, &freq);
if (!dbus_message_iter_next(&sub_array_iter) ||
dbus_message_iter_get_arg_type(&sub_array_iter) !=
DBUS_TYPE_UINT32) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
"Channel must by specified by struct of "
"two UINT32s");
*reply = wpas_dbus_error_invalid_args(
message,
"Wrong Channel struct. Two UINT32s required");
os_free(freqs);
return -1;
}
dbus_message_iter_get_basic(&sub_array_iter, &width);
#define FREQS_ALLOC_CHUNK 32
if (freqs_num % FREQS_ALLOC_CHUNK == 0) {
nfreqs = os_realloc(freqs, sizeof(int) *
(freqs_num + FREQS_ALLOC_CHUNK));
if (nfreqs == NULL)
os_free(freqs);
freqs = nfreqs;
}
if (freqs == NULL) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
"out of memory. can't allocate memory for "
"freqs");
*reply = dbus_message_new_error(
message, DBUS_ERROR_NO_MEMORY, NULL);
return -1;
}
freqs[freqs_num] = freq;
freqs_num++;
dbus_message_iter_next(&array_iter);
}
nfreqs = os_realloc(freqs,
sizeof(int) * (freqs_num + 1));
if (nfreqs == NULL)
os_free(freqs);
freqs = nfreqs;
if (freqs == NULL) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
"out of memory. Can't allocate memory for freqs");
*reply = dbus_message_new_error(
message, DBUS_ERROR_NO_MEMORY, NULL);
return -1;
}
freqs[freqs_num] = 0;
params->freqs = freqs;
return 0;
}
/**
* wpas_dbus_handler_scan - Request a wireless scan on an interface
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: NULL indicating success or DBus error message on failure
*
* Handler function for "Scan" method call of a network device. Requests
* that wpa_supplicant perform a wireless scan as soon as possible
* on a particular wireless interface.
*/
DBusMessage * wpas_dbus_handler_scan(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
DBusMessageIter iter, dict_iter, entry_iter, variant_iter;
char *key = NULL, *type = NULL;
struct wpa_driver_scan_params params;
size_t i;
os_memset(&params, 0, sizeof(params));
dbus_message_iter_init(message, &iter);
dbus_message_iter_recurse(&iter, &dict_iter);
while (dbus_message_iter_get_arg_type(&dict_iter) ==
DBUS_TYPE_DICT_ENTRY) {
dbus_message_iter_recurse(&dict_iter, &entry_iter);
dbus_message_iter_get_basic(&entry_iter, &key);
dbus_message_iter_next(&entry_iter);
dbus_message_iter_recurse(&entry_iter, &variant_iter);
if (os_strcmp(key, "Type") == 0) {
if (wpas_dbus_get_scan_type(message, &variant_iter,
&type, &reply) < 0)
goto out;
} else if (os_strcmp(key, "SSIDs") == 0) {
if (wpas_dbus_get_scan_ssids(message, &variant_iter,
&params, &reply) < 0)
goto out;
} else if (os_strcmp(key, "IEs") == 0) {
if (wpas_dbus_get_scan_ies(message, &variant_iter,
&params, &reply) < 0)
goto out;
} else if (os_strcmp(key, "Channels") == 0) {
if (wpas_dbus_get_scan_channels(message, &variant_iter,
&params, &reply) < 0)
goto out;
} else {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
"Unknown argument %s", key);
reply = wpas_dbus_error_invalid_args(message, key);
goto out;
}
dbus_message_iter_next(&dict_iter);
}
if (!type) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
"Scan type not specified");
reply = wpas_dbus_error_invalid_args(message, key);
goto out;
}
if (!os_strcmp(type, "passive")) {
if (params.num_ssids || params.extra_ies_len) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
"SSIDs or IEs specified for passive scan.");
reply = wpas_dbus_error_invalid_args(
message, "You can specify only Channels in "
"passive scan");
goto out;
} else if (params.freqs && params.freqs[0]) {
/* wildcard ssid */
params.num_ssids++;
wpa_supplicant_trigger_scan(wpa_s, &params);
} else {
wpa_s->scan_req = 2;
wpa_supplicant_req_scan(wpa_s, 0, 0);
}
} else if (!os_strcmp(type, "active")) {
wpa_supplicant_trigger_scan(wpa_s, &params);
} else {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
"Unknown scan type: %s", type);
reply = wpas_dbus_error_invalid_args(message,
"Wrong scan type");
goto out;
}
out:
for (i = 0; i < WPAS_MAX_SCAN_SSIDS; i++)
os_free((u8 *) params.ssids[i].ssid);
os_free((u8 *) params.extra_ies);
os_free(params.freqs);
return reply;
}
/*
* wpas_dbus_handler_disconnect - Terminate the current connection
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: NotConnected DBus error message if already not connected
* or NULL otherwise.
*
* Handler function for "Disconnect" method call of network interface.
*/
DBusMessage * wpas_dbus_handler_disconnect(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
if (wpa_s->current_ssid != NULL) {
wpa_s->disconnected = 1;
wpa_supplicant_deauthenticate(wpa_s,
WLAN_REASON_DEAUTH_LEAVING);
return NULL;
}
return dbus_message_new_error(message, WPAS_DBUS_ERROR_NOT_CONNECTED,
"This interface is not connected");
}
/**
* wpas_dbus_new_iface_add_network - Add a new configured network
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing the object path of the new network
*
* Handler function for "AddNetwork" method call of a network interface.
*/
DBusMessage * wpas_dbus_handler_add_network(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
DBusMessageIter iter;
struct wpa_ssid *ssid = NULL;
char path_buf[WPAS_DBUS_OBJECT_PATH_MAX], *path = path_buf;
dbus_message_iter_init(message, &iter);
ssid = wpa_config_add_network(wpa_s->conf);
if (ssid == NULL) {
wpa_printf(MSG_ERROR, "wpas_dbus_handler_add_network[dbus]: "
"can't add new interface.");
reply = wpas_dbus_error_unknown_error(
message,
"wpa_supplicant could not add "
"a network on this interface.");
goto err;
}
wpas_notify_network_added(wpa_s, ssid);
ssid->disabled = 1;
wpa_config_set_network_defaults(ssid);
reply = set_network_properties(message, wpa_s, ssid, &iter);
if (reply) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_add_network[dbus]:"
"control interface couldn't set network "
"properties");
goto err;
}
/* Construct the object path for this network. */
os_snprintf(path, WPAS_DBUS_OBJECT_PATH_MAX,
"%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%d",
wpa_s->dbus_new_path, ssid->id);
reply = dbus_message_new_method_return(message);
if (reply == NULL) {
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto err;
}
if (!dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID)) {
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto err;
}
return reply;
err:
if (ssid) {
wpas_notify_network_removed(wpa_s, ssid);
wpa_config_remove_network(wpa_s->conf, ssid->id);
}
return reply;
}
/**
* wpas_dbus_handler_remove_network - Remove a configured network
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: NULL on success or dbus error on failure
*
* Handler function for "RemoveNetwork" method call of a network interface.
*/
DBusMessage * wpas_dbus_handler_remove_network(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
const char *op;
char *iface = NULL, *net_id = NULL;
int id;
struct wpa_ssid *ssid;
dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &op,
DBUS_TYPE_INVALID);
/* Extract the network ID and ensure the network */
/* is actually a child of this interface */
iface = wpas_dbus_new_decompose_object_path(op, &net_id, NULL);
if (iface == NULL || os_strcmp(iface, wpa_s->dbus_new_path) != 0) {
reply = wpas_dbus_error_invalid_args(message, op);
goto out;
}
id = strtoul(net_id, NULL, 10);
if (errno == EINVAL) {
reply = wpas_dbus_error_invalid_args(message, op);
goto out;
}
ssid = wpa_config_get_network(wpa_s->conf, id);
if (ssid == NULL) {
reply = wpas_dbus_error_network_unknown(message);
goto out;
}
wpas_notify_network_removed(wpa_s, ssid);
if (wpa_config_remove_network(wpa_s->conf, id) < 0) {
wpa_printf(MSG_ERROR,
"wpas_dbus_handler_remove_network[dbus]: "
"error occurred when removing network %d", id);
reply = wpas_dbus_error_unknown_error(
message, "error removing the specified network on "
"this interface.");
goto out;
}
if (ssid == wpa_s->current_ssid)
wpa_supplicant_deauthenticate(wpa_s,
WLAN_REASON_DEAUTH_LEAVING);
out:
os_free(iface);
os_free(net_id);
return reply;
}
/**
* wpas_dbus_handler_select_network - Attempt association with a network
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: NULL on success or dbus error on failure
*
* Handler function for "SelectNetwork" method call of network interface.
*/
DBusMessage * wpas_dbus_handler_select_network(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
const char *op;
char *iface = NULL, *net_id = NULL;
int id;
struct wpa_ssid *ssid;
dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &op,
DBUS_TYPE_INVALID);
/* Extract the network ID and ensure the network */
/* is actually a child of this interface */
iface = wpas_dbus_new_decompose_object_path(op, &net_id, NULL);
if (iface == NULL || os_strcmp(iface, wpa_s->dbus_new_path) != 0) {
reply = wpas_dbus_error_invalid_args(message, op);
goto out;
}
id = strtoul(net_id, NULL, 10);
if (errno == EINVAL) {
reply = wpas_dbus_error_invalid_args(message, op);
goto out;
}
ssid = wpa_config_get_network(wpa_s->conf, id);
if (ssid == NULL) {
reply = wpas_dbus_error_network_unknown(message);
goto out;
}
/* Finally, associate with the network */
wpa_supplicant_select_network(wpa_s, ssid);
out:
os_free(iface);
os_free(net_id);
return reply;
}
/**
* wpas_dbus_handler_add_blob - Store named binary blob (ie, for certificates)
* @message: Pointer to incoming dbus message
* @wpa_s: %wpa_supplicant data structure
* Returns: A dbus message containing an error on failure or NULL on success
*
* Asks wpa_supplicant to internally store a binary blobs.
*/
DBusMessage * wpas_dbus_handler_add_blob(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
DBusMessageIter iter, array_iter;
char *blob_name;
u8 *blob_data;
int blob_len;
struct wpa_config_blob *blob = NULL;
dbus_message_iter_init(message, &iter);
dbus_message_iter_get_basic(&iter, &blob_name);
if (wpa_config_get_blob(wpa_s->conf, blob_name)) {
return dbus_message_new_error(message,
WPAS_DBUS_ERROR_BLOB_EXISTS,
NULL);
}
dbus_message_iter_next(&iter);
dbus_message_iter_recurse(&iter, &array_iter);
dbus_message_iter_get_fixed_array(&array_iter, &blob_data, &blob_len);
blob = os_zalloc(sizeof(*blob));
if (!blob) {
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto err;
}
blob->data = os_malloc(blob_len);
if (!blob->data) {
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto err;
}
os_memcpy(blob->data, blob_data, blob_len);
blob->len = blob_len;
blob->name = os_strdup(blob_name);
if (!blob->name) {
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto err;
}
wpa_config_set_blob(wpa_s->conf, blob);
wpas_notify_blob_added(wpa_s, blob->name);
return reply;
err:
if (blob) {
os_free(blob->name);
os_free(blob->data);
os_free(blob);
}
return reply;
}
/**
* wpas_dbus_handler_get_blob - Get named binary blob (ie, for certificates)
* @message: Pointer to incoming dbus message
* @wpa_s: %wpa_supplicant data structure
* Returns: A dbus message containing array of bytes (blob)
*
* Gets one wpa_supplicant's binary blobs.
*/
DBusMessage * wpas_dbus_handler_get_blob(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
DBusMessageIter iter, array_iter;
char *blob_name;
const struct wpa_config_blob *blob;
dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &blob_name,
DBUS_TYPE_INVALID);
blob = wpa_config_get_blob(wpa_s->conf, blob_name);
if (!blob) {
return dbus_message_new_error(message,
WPAS_DBUS_ERROR_BLOB_UNKNOWN,
"Blob id not set");
}
reply = dbus_message_new_method_return(message);
if (!reply) {
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
dbus_message_iter_init_append(reply, &iter);
if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
DBUS_TYPE_BYTE_AS_STRING,
&array_iter)) {
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_append_fixed_array(&array_iter, DBUS_TYPE_BYTE,
&(blob->data), blob->len)) {
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_close_container(&iter, &array_iter)) {
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
out:
return reply;
}
/**
* wpas_remove_handler_remove_blob - Remove named binary blob
* @message: Pointer to incoming dbus message
* @wpa_s: %wpa_supplicant data structure
* Returns: NULL on success or dbus error
*
* Asks wpa_supplicant to internally remove a binary blobs.
*/
DBusMessage * wpas_dbus_handler_remove_blob(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
char *blob_name;
dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &blob_name,
DBUS_TYPE_INVALID);
if (wpa_config_remove_blob(wpa_s->conf, blob_name)) {
return dbus_message_new_error(message,
WPAS_DBUS_ERROR_BLOB_UNKNOWN,
"Blob id not set");
}
wpas_notify_blob_removed(wpa_s, blob_name);
return reply;
}
/**
* wpas_dbus_getter_capabilities - Return interface capabilities
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing a dict of strings
*
* Getter for "Capabilities" property of an interface.
*/
DBusMessage * wpas_dbus_getter_capabilities(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
struct wpa_driver_capa capa;
int res;
DBusMessageIter iter, iter_dict;
DBusMessageIter iter_dict_entry, iter_dict_val, iter_array,
variant_iter;
const char *scans[] = { "active", "passive", "ssid" };
const char *modes[] = { "infrastructure", "ad-hoc", "ap" };
int n = sizeof(modes) / sizeof(char *);
if (message == NULL)
reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
else
reply = dbus_message_new_method_return(message);
if (!reply)
goto nomem;
dbus_message_iter_init_append(reply, &iter);
if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT,
"a{sv}", &variant_iter))
goto nomem;
if (!wpa_dbus_dict_open_write(&variant_iter, &iter_dict))
goto nomem;
res = wpa_drv_get_capa(wpa_s, &capa);
/***** pairwise cipher */
if (res < 0) {
const char *args[] = {"ccmp", "tkip", "none"};
if (!wpa_dbus_dict_append_string_array(
&iter_dict, "Pairwise", args,
sizeof(args) / sizeof(char*)))
goto nomem;
} else {
if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Pairwise",
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto nomem;
if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "ccmp"))
goto nomem;
}
if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "tkip"))
goto nomem;
}
if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "none"))
goto nomem;
}
if (!wpa_dbus_dict_end_string_array(&iter_dict,
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto nomem;
}
/***** group cipher */
if (res < 0) {
const char *args[] = {
"ccmp", "tkip", "wep104", "wep40"
};
if (!wpa_dbus_dict_append_string_array(
&iter_dict, "Group", args,
sizeof(args) / sizeof(char*)))
goto nomem;
} else {
if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Group",
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto nomem;
if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "ccmp"))
goto nomem;
}
if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "tkip"))
goto nomem;
}
if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP104) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "wep104"))
goto nomem;
}
if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP40) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "wep40"))
goto nomem;
}
if (!wpa_dbus_dict_end_string_array(&iter_dict,
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto nomem;
}
/***** key management */
if (res < 0) {
const char *args[] = {
"wpa-psk", "wpa-eap", "ieee8021x", "wpa-none",
#ifdef CONFIG_WPS
"wps",
#endif /* CONFIG_WPS */
"none"
};
if (!wpa_dbus_dict_append_string_array(
&iter_dict, "KeyMgmt", args,
sizeof(args) / sizeof(char*)))
goto nomem;
} else {
if (!wpa_dbus_dict_begin_string_array(&iter_dict, "KeyMgmt",
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto nomem;
if (!wpa_dbus_dict_string_array_add_element(&iter_array,
"none"))
goto nomem;
if (!wpa_dbus_dict_string_array_add_element(&iter_array,
"ieee8021x"))
goto nomem;
if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
WPA_DRIVER_CAPA_KEY_MGMT_WPA2)) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "wpa-eap"))
goto nomem;
if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_FT)
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "wpa-ft-eap"))
goto nomem;
/* TODO: Ensure that driver actually supports sha256 encryption. */
#ifdef CONFIG_IEEE80211W
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "wpa-eap-sha256"))
goto nomem;
#endif /* CONFIG_IEEE80211W */
}
if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "wpa-psk"))
goto nomem;
if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK)
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "wpa-ft-psk"))
goto nomem;
/* TODO: Ensure that driver actually supports sha256 encryption. */
#ifdef CONFIG_IEEE80211W
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "wpa-psk-sha256"))
goto nomem;
#endif /* CONFIG_IEEE80211W */
}
if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "wpa-none"))
goto nomem;
}
#ifdef CONFIG_WPS
if (!wpa_dbus_dict_string_array_add_element(&iter_array,
"wps"))
goto nomem;
#endif /* CONFIG_WPS */
if (!wpa_dbus_dict_end_string_array(&iter_dict,
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto nomem;
}
/***** WPA protocol */
if (res < 0) {
const char *args[] = { "rsn", "wpa" };
if (!wpa_dbus_dict_append_string_array(
&iter_dict, "Protocol", args,
sizeof(args) / sizeof(char*)))
goto nomem;
} else {
if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Protocol",
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto nomem;
if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "rsn"))
goto nomem;
}
if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK)) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "wpa"))
goto nomem;
}
if (!wpa_dbus_dict_end_string_array(&iter_dict,
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto nomem;
}
/***** auth alg */
if (res < 0) {
const char *args[] = { "open", "shared", "leap" };
if (!wpa_dbus_dict_append_string_array(
&iter_dict, "AuthAlg", args,
sizeof(args) / sizeof(char*)))
goto nomem;
} else {
if (!wpa_dbus_dict_begin_string_array(&iter_dict, "AuthAlg",
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto nomem;
if (capa.auth & (WPA_DRIVER_AUTH_OPEN)) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "open"))
goto nomem;
}
if (capa.auth & (WPA_DRIVER_AUTH_SHARED)) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "shared"))
goto nomem;
}
if (capa.auth & (WPA_DRIVER_AUTH_LEAP)) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "leap"))
goto nomem;
}
if (!wpa_dbus_dict_end_string_array(&iter_dict,
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto nomem;
}
/***** Scan */
if (!wpa_dbus_dict_append_string_array(&iter_dict, "Scan", scans,
sizeof(scans) / sizeof(char *)))
goto nomem;
/***** Modes */
if (res < 0 || !(capa.flags & WPA_DRIVER_FLAGS_AP))
n--; /* exclude ap mode if it is not supported by the driver */
if (!wpa_dbus_dict_append_string_array(&iter_dict, "Modes", modes, n))
goto nomem;
if (!wpa_dbus_dict_close_write(&variant_iter, &iter_dict))
goto nomem;
if (!dbus_message_iter_close_container(&iter, &variant_iter))
goto nomem;
return reply;
nomem:
if (reply)
dbus_message_unref(reply);
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY, NULL);
}
/**
* wpas_dbus_getter_state - Get interface state
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing a STRING representing the current
* interface state
*
* Getter for "State" property.
*/
DBusMessage * wpas_dbus_getter_state(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
const char *str_state;
char *state_ls, *tmp;
str_state = wpa_supplicant_state_txt(wpa_s->wpa_state);
/* make state string lowercase to fit new DBus API convention
*/
state_ls = tmp = os_strdup(str_state);
if (!tmp) {
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
while (*tmp) {
*tmp = tolower(*tmp);
tmp++;
}
reply = wpas_dbus_simple_property_getter(message, DBUS_TYPE_STRING,
&state_ls);
os_free(state_ls);
return reply;
}
/**
* wpas_dbus_new_iface_get_scanning - Get interface scanning state
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing whether the interface is scanning
*
* Getter for "scanning" property.
*/
DBusMessage * wpas_dbus_getter_scanning(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
dbus_bool_t scanning = wpa_s->scanning ? TRUE : FALSE;
return wpas_dbus_simple_property_getter(message, DBUS_TYPE_BOOLEAN,
&scanning);
}
/**
* wpas_dbus_getter_ap_scan - Control roaming mode
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A message containong value of ap_scan variable
*
* Getter function for "ApScan" property.
*/
DBusMessage * wpas_dbus_getter_ap_scan(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
dbus_uint32_t ap_scan = wpa_s->conf->ap_scan;
return wpas_dbus_simple_property_getter(message, DBUS_TYPE_UINT32,
&ap_scan);
}
/**
* wpas_dbus_setter_ap_scan - Control roaming mode
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: NULL
*
* Setter function for "ApScan" property.
*/
DBusMessage * wpas_dbus_setter_ap_scan(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
dbus_uint32_t ap_scan;
reply = wpas_dbus_simple_property_setter(message, DBUS_TYPE_UINT32,
&ap_scan);
if (reply)
return reply;
if (wpa_supplicant_set_ap_scan(wpa_s, ap_scan)) {
return wpas_dbus_error_invalid_args(
message, "ap_scan must equal 0, 1 or 2");
}
return NULL;
}
/**
* wpas_dbus_getter_ifname - Get interface name
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing a name of network interface
* associated with with wpa_s
*
* Getter for "Ifname" property.
*/
DBusMessage * wpas_dbus_getter_ifname(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
const char *ifname = wpa_s->ifname;
return wpas_dbus_simple_property_getter(message, DBUS_TYPE_STRING,
&ifname);
}
/**
* wpas_dbus_getter_driver - Get interface name
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing a name of network interface
* driver associated with with wpa_s
*
* Getter for "Driver" property.
*/
DBusMessage * wpas_dbus_getter_driver(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
const char *driver;
if (wpa_s->driver == NULL || wpa_s->driver->name == NULL) {
wpa_printf(MSG_DEBUG, "wpas_dbus_getter_driver[dbus]: "
"wpa_s has no driver set");
return wpas_dbus_error_unknown_error(message, NULL);
}
driver = wpa_s->driver->name;
return wpas_dbus_simple_property_getter(message, DBUS_TYPE_STRING,
&driver);
}
/**
* wpas_dbus_getter_current_bss - Get current bss object path
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing a DBus object path to
* current BSS
*
* Getter for "CurrentBSS" property.
*/
DBusMessage * wpas_dbus_getter_current_bss(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply;
char path_buf[WPAS_DBUS_OBJECT_PATH_MAX], *bss_obj_path = path_buf;
if (wpa_s->current_bss)
os_snprintf(bss_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
"%s/" WPAS_DBUS_NEW_BSSIDS_PART "/%u",
wpa_s->dbus_new_path, wpa_s->current_bss->id);
else
os_snprintf(bss_obj_path, WPAS_DBUS_OBJECT_PATH_MAX, "/");
reply = wpas_dbus_simple_property_getter(message,
DBUS_TYPE_OBJECT_PATH,
&bss_obj_path);
return reply;
}
/**
* wpas_dbus_getter_current_network - Get current network object path
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing a DBus object path to
* current network
*
* Getter for "CurrentNetwork" property.
*/
DBusMessage * wpas_dbus_getter_current_network(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply;
char path_buf[WPAS_DBUS_OBJECT_PATH_MAX], *net_obj_path = path_buf;
if (wpa_s->current_ssid)
os_snprintf(net_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
"%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%u",
wpa_s->dbus_new_path, wpa_s->current_ssid->id);
else
os_snprintf(net_obj_path, WPAS_DBUS_OBJECT_PATH_MAX, "/");
reply = wpas_dbus_simple_property_getter(message,
DBUS_TYPE_OBJECT_PATH,
&net_obj_path);
return reply;
}
/**
* wpas_dbus_getter_bridge_ifname - Get interface name
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing a name of bridge network
* interface associated with with wpa_s
*
* Getter for "BridgeIfname" property.
*/
DBusMessage * wpas_dbus_getter_bridge_ifname(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
const char *bridge_ifname = NULL;
bridge_ifname = wpa_s->bridge_ifname;
if (bridge_ifname == NULL) {
wpa_printf(MSG_ERROR, "wpas_dbus_getter_bridge_ifname[dbus]: "
"wpa_s has no bridge interface name set");
return wpas_dbus_error_unknown_error(message, NULL);
}
return wpas_dbus_simple_property_getter(message, DBUS_TYPE_STRING,
&bridge_ifname);
}
/**
* wpas_dbus_getter_bsss - Get array of BSSs objects
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: a dbus message containing an array of all known BSS objects
* dbus paths
*
* Getter for "BSSs" property.
*/
DBusMessage * wpas_dbus_getter_bsss(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
struct wpa_bss *bss;
char **paths;
unsigned int i = 0;
paths = os_zalloc(wpa_s->num_bss * sizeof(char *));
if (!paths) {
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
/* Loop through scan results and append each result's object path */
dl_list_for_each(bss, &wpa_s->bss_id, struct wpa_bss, list_id) {
paths[i] = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
if (paths[i] == NULL) {
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
/* Construct the object path for this BSS. */
os_snprintf(paths[i++], WPAS_DBUS_OBJECT_PATH_MAX,
"%s/" WPAS_DBUS_NEW_BSSIDS_PART "/%u",
wpa_s->dbus_new_path, bss->id);
}
reply = wpas_dbus_simple_array_property_getter(message,
DBUS_TYPE_OBJECT_PATH,
paths, wpa_s->num_bss);
out:
while (i)
os_free(paths[--i]);
os_free(paths);
return reply;
}
/**
* wpas_dbus_getter_networks - Get array of networks objects
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: a dbus message containing an array of all configured
* networks dbus object paths.
*
* Getter for "Networks" property.
*/
DBusMessage * wpas_dbus_getter_networks(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
struct wpa_ssid *ssid;
char **paths;
unsigned int i = 0, num = 0;
if (wpa_s->conf == NULL) {
wpa_printf(MSG_ERROR, "wpas_dbus_getter_networks[dbus]: "
"An error occurred getting networks list.");
return wpas_dbus_error_unknown_error(message, NULL);
}
for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
num++;
paths = os_zalloc(num * sizeof(char *));
if (!paths) {
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
/* Loop through configured networks and append object path of each */
for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
paths[i] = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
if (paths[i] == NULL) {
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
/* Construct the object path for this network. */
os_snprintf(paths[i++], WPAS_DBUS_OBJECT_PATH_MAX,
"%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%d",
wpa_s->dbus_new_path, ssid->id);
}
reply = wpas_dbus_simple_array_property_getter(message,
DBUS_TYPE_OBJECT_PATH,
paths, num);
out:
while (i)
os_free(paths[--i]);
os_free(paths);
return reply;
}
/**
* wpas_dbus_getter_blobs - Get all blobs defined for this interface
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: a dbus message containing a dictionary of pairs (blob_name, blob)
*
* Getter for "Blobs" property.
*/
DBusMessage * wpas_dbus_getter_blobs(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
DBusMessageIter iter, variant_iter, dict_iter, entry_iter, array_iter;
struct wpa_config_blob *blob;
if (message == NULL)
reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
else
reply = dbus_message_new_method_return(message);
if (!reply)
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
dbus_message_iter_init_append(reply, &iter);
if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT,
"a{say}", &variant_iter) ||
!dbus_message_iter_open_container(&variant_iter, DBUS_TYPE_ARRAY,
"{say}", &dict_iter)) {
dbus_message_unref(reply);
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
blob = wpa_s->conf->blobs;
while (blob) {
if (!dbus_message_iter_open_container(&dict_iter,
DBUS_TYPE_DICT_ENTRY,
NULL, &entry_iter) ||
!dbus_message_iter_append_basic(&entry_iter,
DBUS_TYPE_STRING,
&(blob->name)) ||
!dbus_message_iter_open_container(&entry_iter,
DBUS_TYPE_ARRAY,
DBUS_TYPE_BYTE_AS_STRING,
&array_iter) ||
!dbus_message_iter_append_fixed_array(&array_iter,
DBUS_TYPE_BYTE,
&(blob->data),
blob->len) ||
!dbus_message_iter_close_container(&entry_iter,
&array_iter) ||
!dbus_message_iter_close_container(&dict_iter,
&entry_iter)) {
dbus_message_unref(reply);
return dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
}
blob = blob->next;
}
if (!dbus_message_iter_close_container(&variant_iter, &dict_iter) ||
!dbus_message_iter_close_container(&iter, &variant_iter)) {
dbus_message_unref(reply);
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
return reply;
}
/**
* wpas_dbus_getter_bss_bssid - Return the BSSID of a BSS
* @message: Pointer to incoming dbus message
* @bss: a pair of interface describing structure and bss's id
* Returns: a dbus message containing the bssid for the requested bss
*
* Getter for "BSSID" property.
*/
DBusMessage * wpas_dbus_getter_bss_bssid(DBusMessage *message,
struct bss_handler_args *bss)
{
struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
if (!res) {
wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_bssid[dbus]: no "
"bss with id %d found", bss->id);
return NULL;
}
return wpas_dbus_simple_array_property_getter(message, DBUS_TYPE_BYTE,
res->bssid, ETH_ALEN);
}
/**
* wpas_dbus_getter_bss_ssid - Return the SSID of a BSS
* @message: Pointer to incoming dbus message
* @bss: a pair of interface describing structure and bss's id
* Returns: a dbus message containing the ssid for the requested bss
*
* Getter for "SSID" property.
*/
DBusMessage * wpas_dbus_getter_bss_ssid(DBusMessage *message,
struct bss_handler_args *bss)
{
struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
if (!res) {
wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_ssid[dbus]: no "
"bss with id %d found", bss->id);
return NULL;
}
return wpas_dbus_simple_array_property_getter(message, DBUS_TYPE_BYTE,
res->ssid,
res->ssid_len);
}
/**
* wpas_dbus_getter_bss_privacy - Return the privacy flag of a BSS
* @message: Pointer to incoming dbus message
* @bss: a pair of interface describing structure and bss's id
* Returns: a dbus message containing the privacy flag value of requested bss
*
* Getter for "Privacy" property.
*/
DBusMessage * wpas_dbus_getter_bss_privacy(DBusMessage *message,
struct bss_handler_args *bss)
{
struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
dbus_bool_t privacy;
if (!res) {
wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_privacy[dbus]: no "
"bss with id %d found", bss->id);
return NULL;
}
privacy = (res->caps & IEEE80211_CAP_PRIVACY) ? TRUE : FALSE;
return wpas_dbus_simple_property_getter(message, DBUS_TYPE_BOOLEAN,
&privacy);
}
/**
* wpas_dbus_getter_bss_mode - Return the mode of a BSS
* @message: Pointer to incoming dbus message
* @bss: a pair of interface describing structure and bss's id
* Returns: a dbus message containing the mode of requested bss
*
* Getter for "Mode" property.
*/
DBusMessage * wpas_dbus_getter_bss_mode(DBusMessage *message,
struct bss_handler_args *bss)
{
struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
const char *mode;
if (!res) {
wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_mode[dbus]: no "
"bss with id %d found", bss->id);
return NULL;
}
if (res->caps & IEEE80211_CAP_IBSS)
mode = "ad-hoc";
else
mode = "infrastructure";
return wpas_dbus_simple_property_getter(message, DBUS_TYPE_STRING,
&mode);
}
/**
* wpas_dbus_getter_bss_level - Return the signal strength of a BSS
* @message: Pointer to incoming dbus message
* @bss: a pair of interface describing structure and bss's id
* Returns: a dbus message containing the signal strength of requested bss
*
* Getter for "Level" property.
*/
DBusMessage * wpas_dbus_getter_bss_signal(DBusMessage *message,
struct bss_handler_args *bss)
{
struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
if (!res) {
wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_signal[dbus]: no "
"bss with id %d found", bss->id);
return NULL;
}
return wpas_dbus_simple_property_getter(message, DBUS_TYPE_INT16,
&res->level);
}
/**
* wpas_dbus_getter_bss_frequency - Return the frequency of a BSS
* @message: Pointer to incoming dbus message
* @bss: a pair of interface describing structure and bss's id
* Returns: a dbus message containing the frequency of requested bss
*
* Getter for "Frequency" property.
*/
DBusMessage * wpas_dbus_getter_bss_frequency(DBusMessage *message,
struct bss_handler_args *bss)
{
struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
if (!res) {
wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_frequency[dbus]: "
"no bss with id %d found", bss->id);
return NULL;
}
return wpas_dbus_simple_property_getter(message, DBUS_TYPE_UINT16,
&res->freq);
}
static int cmp_u8s_desc(const void *a, const void *b)
{
return (*(u8 *) b - *(u8 *) a);
}
/**
* wpas_dbus_getter_bss_rates - Return available bit rates of a BSS
* @message: Pointer to incoming dbus message
* @bss: a pair of interface describing structure and bss's id
* Returns: a dbus message containing sorted array of bit rates
*
* Getter for "Rates" property.
*/
DBusMessage * wpas_dbus_getter_bss_rates(DBusMessage *message,
struct bss_handler_args *bss)
{
DBusMessage *reply;
struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
u8 *ie_rates = NULL;
u32 *real_rates;
int rates_num, i;
if (!res) {
wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_rates[dbus]: "
"no bss with id %d found", bss->id);
return NULL;
}
rates_num = wpa_bss_get_bit_rates(res, &ie_rates);
if (rates_num < 0)
return NULL;
qsort(ie_rates, rates_num, 1, cmp_u8s_desc);
real_rates = os_malloc(sizeof(u32) * rates_num);
if (!real_rates) {
os_free(ie_rates);
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
for (i = 0; i < rates_num; i++)
real_rates[i] = ie_rates[i] * 500000;
reply = wpas_dbus_simple_array_property_getter(message,
DBUS_TYPE_UINT32,
real_rates, rates_num);
os_free(ie_rates);
os_free(real_rates);
return reply;
}
static DBusMessage * wpas_dbus_get_bss_security_prop(
DBusMessage *message, struct wpa_ie_data *ie_data)
{
DBusMessage *reply;
DBusMessageIter iter, iter_dict, variant_iter;
const char *group;
const char *pairwise[2]; /* max 2 pairwise ciphers is supported */
const char *key_mgmt[7]; /* max 7 key managements may be supported */
int n;
if (message == NULL)
reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
else
reply = dbus_message_new_method_return(message);
if (!reply)
goto nomem;
dbus_message_iter_init_append(reply, &iter);
if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT,
"a{sv}", &variant_iter))
goto nomem;
if (!wpa_dbus_dict_open_write(&variant_iter, &iter_dict))
goto nomem;
/* KeyMgmt */
n = 0;
if (ie_data->key_mgmt & WPA_KEY_MGMT_PSK)
key_mgmt[n++] = "wpa-psk";
if (ie_data->key_mgmt & WPA_KEY_MGMT_FT_PSK)
key_mgmt[n++] = "wpa-ft-psk";
if (ie_data->key_mgmt & WPA_KEY_MGMT_PSK_SHA256)
key_mgmt[n++] = "wpa-psk-sha256";
if (ie_data->key_mgmt & WPA_KEY_MGMT_IEEE8021X)
key_mgmt[n++] = "wpa-eap";
if (ie_data->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X)
key_mgmt[n++] = "wpa-ft-eap";
if (ie_data->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256)
key_mgmt[n++] = "wpa-eap-sha256";
if (ie_data->key_mgmt & WPA_KEY_MGMT_NONE)
key_mgmt[n++] = "wpa-none";
if (!wpa_dbus_dict_append_string_array(&iter_dict, "KeyMgmt",
key_mgmt, n))
goto nomem;
/* Group */
switch (ie_data->group_cipher) {
case WPA_CIPHER_WEP40:
group = "wep40";
break;
case WPA_CIPHER_TKIP:
group = "tkip";
break;
case WPA_CIPHER_CCMP:
group = "ccmp";
break;
case WPA_CIPHER_WEP104:
group = "wep104";
break;
default:
group = "";
break;
}
if (!wpa_dbus_dict_append_string(&iter_dict, "Group", group))
goto nomem;
/* Pairwise */
n = 0;
if (ie_data->pairwise_cipher & WPA_CIPHER_TKIP)
pairwise[n++] = "tkip";
if (ie_data->pairwise_cipher & WPA_CIPHER_CCMP)
pairwise[n++] = "ccmp";
if (!wpa_dbus_dict_append_string_array(&iter_dict, "Pairwise",
pairwise, n))
goto nomem;
/* Management group (RSN only) */
if (ie_data->proto == WPA_PROTO_RSN) {
switch (ie_data->mgmt_group_cipher) {
#ifdef CONFIG_IEEE80211W
case WPA_CIPHER_AES_128_CMAC:
group = "aes128cmac";
break;
#endif /* CONFIG_IEEE80211W */
default:
group = "";
break;
}
if (!wpa_dbus_dict_append_string(&iter_dict, "MgmtGroup",
group))
goto nomem;
}
if (!wpa_dbus_dict_close_write(&variant_iter, &iter_dict))
goto nomem;
if (!dbus_message_iter_close_container(&iter, &variant_iter))
goto nomem;
return reply;
nomem:
if (reply)
dbus_message_unref(reply);
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY, NULL);
}
/**
* wpas_dbus_getter_bss_wpa - Return the WPA options of a BSS
* @message: Pointer to incoming dbus message
* @bss: a pair of interface describing structure and bss's id
* Returns: a dbus message containing the WPA options of requested bss
*
* Getter for "WPA" property.
*/
DBusMessage * wpas_dbus_getter_bss_wpa(DBusMessage *message,
struct bss_handler_args *bss)
{
struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
struct wpa_ie_data wpa_data;
const u8 *ie;
if (!res) {
wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_wpa[dbus]: no "
"bss with id %d found", bss->id);
return NULL;
}
os_memset(&wpa_data, 0, sizeof(wpa_data));
ie = wpa_bss_get_vendor_ie(res, WPA_IE_VENDOR_TYPE);
if (ie)
wpa_parse_wpa_ie(ie, 2 + ie[1], &wpa_data);
return wpas_dbus_get_bss_security_prop(message, &wpa_data);
}
/**
* wpas_dbus_getter_bss_rsn - Return the RSN options of a BSS
* @message: Pointer to incoming dbus message
* @bss: a pair of interface describing structure and bss's id
* Returns: a dbus message containing the RSN options of requested bss
*
* Getter for "RSN" property.
*/
DBusMessage * wpas_dbus_getter_bss_rsn(DBusMessage *message,
struct bss_handler_args *bss)
{
struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
struct wpa_ie_data wpa_data;
const u8 *ie;
if (!res) {
wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_rsn[dbus]: no "
"bss with id %d found", bss->id);
return NULL;
}
os_memset(&wpa_data, 0, sizeof(wpa_data));
ie = wpa_bss_get_ie(res, WLAN_EID_RSN);
if (ie)
wpa_parse_wpa_ie(ie, 2 + ie[1], &wpa_data);
return wpas_dbus_get_bss_security_prop(message, &wpa_data);
}
/**
* wpas_dbus_getter_bss_ies - Return all IEs of a BSS
* @message: Pointer to incoming dbus message
* @bss: a pair of interface describing structure and bss's id
* Returns: a dbus message containing IEs byte array
*
* Getter for "IEs" property.
*/
DBusMessage * wpas_dbus_getter_bss_ies(DBusMessage *message,
struct bss_handler_args *bss)
{
struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
if (!res) {
wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_ies[dbus]: no "
"bss with id %d found", bss->id);
return NULL;
}
return wpas_dbus_simple_array_property_getter(message, DBUS_TYPE_BYTE,
res + 1, res->ie_len);
}
/**
* wpas_dbus_getter_enabled - Check whether network is enabled or disabled
* @message: Pointer to incoming dbus message
* @wpas_dbus_setter_enabled: wpa_supplicant structure for a network interface
* and wpa_ssid structure for a configured network
* Returns: DBus message with boolean indicating state of configured network
* or DBus error on failure
*
* Getter for "enabled" property of a configured network.
*/
DBusMessage * wpas_dbus_getter_enabled(DBusMessage *message,
struct network_handler_args *net)
{
dbus_bool_t enabled = net->ssid->disabled ? FALSE : TRUE;
return wpas_dbus_simple_property_getter(message, DBUS_TYPE_BOOLEAN,
&enabled);
}
/**
* wpas_dbus_setter_enabled - Mark a configured network as enabled or disabled
* @message: Pointer to incoming dbus message
* @wpas_dbus_setter_enabled: wpa_supplicant structure for a network interface
* and wpa_ssid structure for a configured network
* Returns: NULL indicating success or DBus error on failure
*
* Setter for "Enabled" property of a configured network.
*/
DBusMessage * wpas_dbus_setter_enabled(DBusMessage *message,
struct network_handler_args *net)
{
DBusMessage *reply = NULL;
struct wpa_supplicant *wpa_s;
struct wpa_ssid *ssid;
dbus_bool_t enable;
reply = wpas_dbus_simple_property_setter(message, DBUS_TYPE_BOOLEAN,
&enable);
if (reply)
return reply;
wpa_s = net->wpa_s;
ssid = net->ssid;
if (enable)
wpa_supplicant_enable_network(wpa_s, ssid);
else
wpa_supplicant_disable_network(wpa_s, ssid);
return NULL;
}
/**
* wpas_dbus_getter_network_properties - Get options for a configured network
* @message: Pointer to incoming dbus message
* @net: wpa_supplicant structure for a network interface and
* wpa_ssid structure for a configured network
* Returns: DBus message with network properties or DBus error on failure
*
* Getter for "Properties" property of a configured network.
*/
DBusMessage * wpas_dbus_getter_network_properties(
DBusMessage *message, struct network_handler_args *net)
{
DBusMessage *reply = NULL;
DBusMessageIter iter, variant_iter, dict_iter;
char **iterator;
char **props = wpa_config_get_all(net->ssid, 0);
if (!props)
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
if (message == NULL)
reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
else
reply = dbus_message_new_method_return(message);
if (!reply) {
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
dbus_message_iter_init_append(reply, &iter);
if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT,
"a{sv}", &variant_iter) ||
!wpa_dbus_dict_open_write(&variant_iter, &dict_iter)) {
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
iterator = props;
while (*iterator) {
if (!wpa_dbus_dict_append_string(&dict_iter, *iterator,
*(iterator + 1))) {
dbus_message_unref(reply);
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
iterator += 2;
}
if (!wpa_dbus_dict_close_write(&variant_iter, &dict_iter) ||
!dbus_message_iter_close_container(&iter, &variant_iter)) {
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
out:
iterator = props;
while (*iterator) {
os_free(*iterator);
iterator++;
}
os_free(props);
return reply;
}
/**
* wpas_dbus_setter_network_properties - Set options for a configured network
* @message: Pointer to incoming dbus message
* @net: wpa_supplicant structure for a network interface and
* wpa_ssid structure for a configured network
* Returns: NULL indicating success or DBus error on failure
*
* Setter for "Properties" property of a configured network.
*/
DBusMessage * wpas_dbus_setter_network_properties(
DBusMessage *message, struct network_handler_args *net)
{
struct wpa_ssid *ssid = net->ssid;
DBusMessage *reply = NULL;
DBusMessageIter iter, variant_iter;
dbus_message_iter_init(message, &iter);
dbus_message_iter_next(&iter);
dbus_message_iter_next(&iter);
dbus_message_iter_recurse(&iter, &variant_iter);
reply = set_network_properties(message, net->wpa_s, ssid,
&variant_iter);
if (reply)
wpa_printf(MSG_DEBUG, "dbus control interface couldn't set "
"network properties");
return reply;
}
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