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hostapd/wpa_supplicant/dbus/dbus_new_handlers.c
Catalin Drula 5b49c9d5ed dbus: Fix interface list getter with multiple interfaces 
There's a bug in the getter for the 'Interfaces' property
of /fi/w1/wpa_supplicant1 (new D-Bus interface) which causes a
'Segmentation Fault' when there are multiple interfaces.
2011-03-16 12:30:09 +02:00

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82 KiB
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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)
{
/*
* This function can be called as a result of a failure
* within internal getter calls, which will call this function
* with a NULL message parameter. However, dbus_message_new_error
* looks very unkindly (i.e, abort()) on a NULL message, so
* in this case, we should not call it.
*/
if (message == NULL) {
wpa_printf(MSG_INFO, "dbus: wpas_dbus_error_unknown_error "
"called with NULL message (arg=%s)",
arg ? arg : "N/A");
return NULL;
}
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)) {
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) {
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);
} else {
/* Allow zero-length SSIDs */
ssid = NULL;
}
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]) {
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")) {
if (!params.num_ssids) {
/* Add wildcard ssid */
params.num_ssids++;
}
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_current_auth_mode - Get current authentication type
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing a string indicating the current
* authentication type.
*
* Getter for "CurrentAuthMode" property.
*/
DBusMessage * wpas_dbus_getter_current_auth_mode(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply;
const char *eap_mode;
const char *auth_mode;
char eap_mode_buf[WPAS_DBUS_AUTH_MODE_MAX];
if (wpa_s->wpa_state != WPA_COMPLETED) {
auth_mode = "INACTIVE";
} else if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X ||
wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
eap_mode = wpa_supplicant_get_eap_mode(wpa_s);
os_snprintf(eap_mode_buf, WPAS_DBUS_AUTH_MODE_MAX,
"EAP-%s", eap_mode);
auth_mode = eap_mode_buf;
} else {
auth_mode = wpa_key_mgmt_txt(wpa_s->key_mgmt,
wpa_s->current_ssid->proto);
}
reply = wpas_dbus_simple_property_getter(message,
DBUS_TYPE_STRING,
&auth_mode);
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) {
if (wpa_parse_wpa_ie(ie, 2 + ie[1], &wpa_data) < 0)
return wpas_dbus_error_unknown_error(message,
"invalid WPA IE");
}
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) {
if (wpa_parse_wpa_ie(ie, 2 + ie[1], &wpa_data) < 0)
return wpas_dbus_error_unknown_error(message,
"invalid RSN IE");
}
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, 1);
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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