hostap/wpa_supplicant/ctrl_iface_dbus_new_handlers.c
Jouni Malinen 0cf7d7450a dbus: Remove unnecessary wpa_s->bssid comparison
This is an array and cannot have NULL value.
2009-11-10 18:11:18 +02:00

3475 lines
98 KiB
C

/*
* WPA Supplicant / dbus-based control interface
* Copyright (c) 2006, Dan Williams <dcbw@redhat.com> and Red Hat, Inc.
* Copyright (c) 2009, Witold Sowa <witold.sowa@gmail.com>
*
* 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 "config.h"
#include "wpa_supplicant_i.h"
#include "driver_i.h"
#include "ctrl_iface_dbus_new_helpers.h"
#include "ctrl_iface_dbus_new.h"
#include "ctrl_iface_dbus_new_handlers.h"
#include "notify.h"
#include "eap_peer/eap_methods.h"
#include "dbus_dict_helpers.h"
#include "ieee802_11_defs.h"
#include "wpas_glue.h"
#include "eapol_supp/eapol_supp_sm.h"
#include "wps_supplicant.h"
extern int wpa_debug_level;
extern int wpa_debug_show_keys;
extern int wpa_debug_timestamp;
/**
* 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
*/
static 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_invald_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
*/
static DBusMessage * wpas_dbus_error_invald_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 void free_wpa_interface(struct wpa_interface *iface)
{
os_free((char *) iface->driver);
os_free((char *) iface->driver_param);
os_free((char *) iface->confname);
os_free((char *) iface->bridge_ifname);
}
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;
}
static struct wpa_scan_res * find_scan_result(struct bss_handler_args *bss)
{
struct wpa_scan_results *results = bss->wpa_s->scan_res;
size_t i;
for (i = 0; i < results->num; i++) {
if (!os_memcmp(results->res[i]->bssid, bss->bssid, ETH_ALEN))
return results->res[i];
}
return NULL;
}
/**
* 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
* @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_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)) {
reply = wpas_dbus_error_invald_args(message, NULL);
goto out;
}
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_invald_args(message, NULL);
goto out;
}
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);
os_free(value);
wpa_dbus_dict_entry_clear(&entry);
continue;
error:
os_free(value);
reply = wpas_dbus_error_invald_args(message, entry.key);
wpa_dbus_dict_entry_clear(&entry);
break;
}
out:
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 "addInterface" 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)
{
struct wpa_interface iface;
DBusMessageIter iter_dict;
DBusMessage *reply = NULL;
DBusMessageIter iter;
struct wpa_dbus_dict_entry entry;
os_memset(&iface, 0, sizeof(iface));
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)) {
iface.driver = strdup(entry.str_value);
if (iface.driver == NULL)
goto error;
} else if (!strcmp(entry.key, "Ifname") &&
(entry.type == DBUS_TYPE_STRING)) {
iface.ifname = strdup(entry.str_value);
if (iface.ifname == NULL)
goto error;
} else if (!strcmp(entry.key, "BridgeIfname") &&
(entry.type == DBUS_TYPE_STRING)) {
iface.bridge_ifname = strdup(entry.str_value);
if (iface.bridge_ifname == NULL)
goto error;
} else {
wpa_dbus_dict_entry_clear(&entry);
goto error;
}
wpa_dbus_dict_entry_clear(&entry);
}
/*
* Try to get the wpa_supplicant record for this iface, return
* an error if we already control it.
*/
if (wpa_supplicant_get_iface(global, iface.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;
/* Otherwise, have wpa_supplicant attach to it. */
if ((wpa_s = wpa_supplicant_add_iface(global, &iface))) {
const char *path = wpas_dbus_get_path(wpa_s);
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.");
}
}
free_wpa_interface(&iface);
return reply;
error:
free_wpa_interface(&iface);
return wpas_dbus_error_invald_args(message, NULL);
}
/**
* 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 = wpas_dbus_get_path(wpa_s);
if (path == NULL) {
wpa_printf(MSG_ERROR, "wpas_dbus_handler_get_interface[dbus]: "
"interface has no dbus object path set");
return wpas_dbus_error_unknown_error(message, "path not set");
}
reply = dbus_message_new_method_return(message);
if (reply == NULL) {
perror("wpas_dbus_handler_get_interface[dbus]: out of memory "
"when creating reply");
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)) {
perror("wpas_dbus_handler_get_interface[dbus]: out of memory "
"when appending argument to reply");
dbus_message_unref(reply);
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
return reply;
}
/**
* wpas_dbus_getter_debug_params - Get the debug params
* @message: Pointer to incoming dbus message
* @global: %wpa_supplicant global data structure
* Returns: DBus message with struct containing debug params.
*
* Getter for "DebugParams" property.
*/
DBusMessage * wpas_dbus_getter_debug_params(DBusMessage *message,
struct wpa_global *global)
{
DBusMessage *reply = NULL;
DBusMessageIter iter, variant_iter, struct_iter;
if (message == NULL)
reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
else
reply = dbus_message_new_method_return(message);
if (!reply) {
perror("wpas_dbus_getter_network_properties[dbus] out of "
"memory when trying to initialize return message");
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,
"(ibb)", &variant_iter)) {
perror("wpas_dbus_getter_debug_params[dbus] out of memory "
"when trying to open variant");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_open_container(&variant_iter, DBUS_TYPE_STRUCT,
NULL, &struct_iter)) {
perror("wpas_dbus_getter_debug_params[dbus] out of memory "
"when trying to open struct");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_append_basic(&struct_iter, DBUS_TYPE_INT32,
&wpa_debug_level)) {
perror("wpas_dbus_getter_debug_params[dbus] out of memory "
"when trying to append value to struct");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_append_basic(&struct_iter, DBUS_TYPE_BOOLEAN,
&wpa_debug_timestamp)) {
perror("wpas_dbus_getter_debug_params[dbus] out of memory "
"when trying to append value to struct");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_append_basic(&struct_iter, DBUS_TYPE_BOOLEAN,
&wpa_debug_show_keys)) {
perror("wpas_dbus_getter_debug_params[dbus] out of memory "
"when trying to append value to struct");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_close_container(&variant_iter, &struct_iter)) {
perror("wpas_dbus_getter_debug_params[dbus] out of memory "
"when trying to close struct");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_close_container(&iter, &variant_iter)) {
perror("wpas_dbus_getter_debug_params[dbus] out of memory "
"when trying to close variant");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
out:
return reply;
}
/**
* wpas_dbus_setter_debugparams - Set the debug params
* @message: Pointer to incoming dbus message
* @global: %wpa_supplicant global data structure
* Returns: NULL indicating success or a dbus error message with more
* information
*
* Setter for "DebugParams" property.
*/
DBusMessage * wpas_dbus_setter_debug_params(DBusMessage *message,
struct wpa_global *global)
{
DBusMessage *reply = NULL;
DBusMessageIter iter, variant_iter, struct_iter;
int debug_level;
dbus_bool_t debug_timestamp;
dbus_bool_t debug_show_keys;
if (!dbus_message_iter_init(message, &iter)) {
perror("wpas_dbus_handler_add_blob[dbus] out of memory when "
"trying to initialize message iterator");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
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) != DBUS_TYPE_STRUCT)
{
reply = wpas_dbus_error_invald_args(
message, "Argument must by a structure");
goto out;
}
dbus_message_iter_recurse(&variant_iter, &struct_iter);
if (dbus_message_iter_get_arg_type(&struct_iter) != DBUS_TYPE_INT32) {
reply = wpas_dbus_error_invald_args(
message, "First struct argument must by an INT32");
goto out;
}
dbus_message_iter_get_basic(&struct_iter, &debug_level);
if (!dbus_message_iter_next(&struct_iter)) {
reply = wpas_dbus_error_invald_args(
message, "Not enough elements in struct");
goto out;
}
if (dbus_message_iter_get_arg_type(&struct_iter) != DBUS_TYPE_BOOLEAN)
{
reply = wpas_dbus_error_invald_args(
message, "Second struct argument must by a boolean");
goto out;
}
dbus_message_iter_get_basic(&struct_iter, &debug_timestamp);
if (!dbus_message_iter_next(&struct_iter)) {
reply = wpas_dbus_error_invald_args(
message, "Not enough elements in struct");
goto out;
}
if (dbus_message_iter_get_arg_type(&struct_iter) != DBUS_TYPE_BOOLEAN)
{
reply = wpas_dbus_error_invald_args(
message, "Third struct argument must by an boolean");
goto out;
}
dbus_message_iter_get_basic(&struct_iter, &debug_show_keys);
if (wpa_supplicant_set_debug_params(global, debug_level,
debug_timestamp ? 1 : 0,
debug_show_keys ? 1 : 0)) {
reply = wpas_dbus_error_invald_args(
message, "Wrong debug level value");
goto out;
}
out:
return reply;
}
/**
* 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;
DBusMessageIter iter, variant_iter, array_iter;
const char *path;
struct wpa_supplicant *wpa_s;
if (message == NULL)
reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
else
reply = dbus_message_new_method_return(message);
if (!reply) {
perror("wpas_dbus_getter_interfaces[dbus] out of memory "
"when trying to initialize return message");
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,
"ao", &variant_iter)) {
perror("wpas_dbus_getter_interfaces[dbus] out of memory "
"when trying to open variant");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_open_container(&variant_iter, DBUS_TYPE_ARRAY,
"o", &array_iter)) {
perror("wpas_dbus_getter_interfaces[dbus] out of memory "
"when trying to open array");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
path = wpas_dbus_get_path(wpa_s);
if (!dbus_message_iter_append_basic(&array_iter,
DBUS_TYPE_OBJECT_PATH,
&path)) {
perror("wpas_dbus_getter_interfaces[dbus] out of "
"memory when trying to append interface path");
dbus_message_unref(reply);
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
}
if (!dbus_message_iter_close_container(&variant_iter, &array_iter)) {
perror("wpas_dbus_getter_interfaces[dbus] out of memory "
"when trying to close array");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_close_container(&iter, &variant_iter)) {
perror("wpas_dbus_getter_interfaces[dbus] out of memory "
"when trying to close variant");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
out:
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;
DBusMessageIter iter, variant_iter, array_iter;
char **eap_methods;
size_t num_items;
if (message == NULL)
reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
else
reply = dbus_message_new_method_return(message);
if (!reply) {
perror("wpas_dbus_getter_eap_methods[dbus] out of memory "
"when trying to initialize return message");
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,
"as", &variant_iter)) {
perror("wpas_dbus_getter_eap_methods[dbus] out of memory "
"when trying to open variant");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_open_container(&variant_iter, DBUS_TYPE_ARRAY,
"s", &array_iter)) {
perror("wpas_dbus_getter_eap_methods[dbus] out of memory "
"when trying to open variant");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
eap_methods = eap_get_names_as_string_array(&num_items);
if (eap_methods) {
size_t i;
int err = 0;
for (i = 0; i < num_items; i++) {
if (!dbus_message_iter_append_basic(&array_iter,
DBUS_TYPE_STRING,
&(eap_methods[i])))
err = 1;
os_free(eap_methods[i]);
}
os_free(eap_methods);
if (err) {
wpa_printf(MSG_ERROR, "wpas_dbus_getter_eap_methods"
"[dbus] out of memory when adding to "
"array");
dbus_message_unref(reply);
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
}
if (!dbus_message_iter_close_container(&variant_iter, &array_iter)) {
perror("wpas_dbus_getter_eap_methods[dbus] "
"out of memory when trying to close array");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_close_container(&iter, &variant_iter)) {
perror("wpas_dbus_getter_eap_methods[dbus] "
"out of memory when trying to close variant");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
out:
return reply;
}
/**
* 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,
array_iter, sub_array_iter;
char *key, *val, *type = NULL;
int len;
int freqs_num = 0;
int ssids_num = 0;
int ies_len = 0;
struct wpa_driver_scan_params params;
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")) {
if (dbus_message_iter_get_arg_type(&variant_iter) !=
DBUS_TYPE_STRING) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan"
"[dbus]: Type must be a string");
reply = wpas_dbus_error_invald_args(
message, "Wrong Type value type. "
"String required");
goto out;
}
dbus_message_iter_get_basic(&variant_iter, &type);
} else if (!strcmp(key, "SSIDs")) {
struct wpa_driver_scan_ssid *ssids = params.ssids;
if (dbus_message_iter_get_arg_type(&variant_iter) !=
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_invald_args(
message,
"Wrong SSIDs value type. "
"Array of arrays of bytes required");
goto out;
}
dbus_message_iter_recurse(&variant_iter, &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_invald_args(
message,
"Wrong SSIDs value type. "
"Array of arrays of bytes required");
goto out;
}
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]: To many ssids "
"specified on scan dbus "
"call");
reply = wpas_dbus_error_invald_args(
message,
"To many ssids specified. "
"Specify at most four");
goto out;
}
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;
}
ssids[ssids_num].ssid =
os_malloc(sizeof(u8) * len);
if (!ssids[ssids_num].ssid) {
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);
goto out;
}
os_memcpy((void *) ssids[ssids_num].ssid, val,
sizeof(u8) * len);
ssids[ssids_num].ssid_len = len;
dbus_message_iter_next(&array_iter);
ssids_num++;;
}
params.num_ssids = ssids_num;
} else if (!strcmp(key, "IEs")) {
u8 *ies = NULL;
if (dbus_message_iter_get_arg_type(&variant_iter) !=
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_invald_args(
message,
"Wrong IEs value type. "
"Array of arrays of bytes required");
goto out;
}
dbus_message_iter_recurse(&variant_iter, &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_invald_args(
message, "Wrong IEs value type. Array "
"required");
goto out;
}
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;
}
ies = os_realloc(ies, ies_len + len);
if (!ies) {
wpa_printf(MSG_DEBUG,
"wpas_dbus_handler_scan"
"[dbus]: out of memory. "
"Cannot allocate memory "
"for IE");
reply = dbus_message_new_error(
message,
DBUS_ERROR_NO_MEMORY, NULL);
goto out;
}
os_memcpy(ies + ies_len, val,
sizeof(u8) * len);
ies_len += len;
dbus_message_iter_next(&array_iter);
}
params.extra_ies = ies;
params.extra_ies_len = ies_len;
} else if (!strcmp(key, "Channels")) {
int *freqs = NULL;
if (dbus_message_iter_get_arg_type(&variant_iter) !=
DBUS_TYPE_ARRAY) {
wpa_printf(MSG_DEBUG,
"wpas_dbus_handler_scan[dbus]: "
"Channels must be an array of "
"structs");
reply = wpas_dbus_error_invald_args(
message,
"Wrong Channels value type. "
"Array of structs required");
goto out;
}
dbus_message_iter_recurse(&variant_iter, &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_invald_args(
message,
"Wrong Channels value type. "
"Array of structs required");
goto out;
}
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_invald_args(
message,
"Wrong Channel struct. Two "
"UINT32s required");
os_free(freqs);
goto out;
}
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_invald_args(message,
"Wrong Channel struct. Two UINT32s required");
os_free(freqs);
goto out;
}
dbus_message_iter_get_basic(&sub_array_iter, &width);
#define FREQS_ALLOC_CHUNK 32
if (freqs_num % FREQS_ALLOC_CHUNK == 0) {
freqs = os_realloc(freqs,
sizeof(int) * (freqs_num + FREQS_ALLOC_CHUNK));
}
if (!freqs) {
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);
goto out;
}
freqs[freqs_num] = freq;
freqs_num++;
dbus_message_iter_next(&array_iter);
}
freqs = os_realloc(freqs,
sizeof(int) * (freqs_num + 1));
if (!freqs) {
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);
goto out;
}
freqs[freqs_num] = 0;
params.freqs = freqs;
} else {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
"Unknown argument %s", key);
reply = wpas_dbus_error_invald_args(
message,
"Wrong Channel struct. Two UINT32s required");
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_invald_args(message, key);
goto out;
}
if (!strcmp(type, "passive")) {
if (ssids_num || ies_len) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
"SSIDs or IEs specified for passive scan.");
reply = wpas_dbus_error_invald_args(
message, "You can specify only Channels in "
"passive scan");
goto out;
} else if (freqs_num > 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 (!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_invald_args(message,
"Wrong scan type");
goto out;
}
out:
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_disassociate(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 = NULL;
path = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
if (path == NULL) {
perror("wpas_dbus_handler_add_network[dbus]: out of "
"memory.");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto err;
}
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, 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",
wpas_dbus_get_path(wpa_s),
ssid->id);
reply = dbus_message_new_method_return(message);
if (reply == NULL) {
perror("wpas_dbus_handler_add_network[dbus]: out of memory "
"when creating reply");
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)) {
perror("wpas_dbus_handler_add_network[dbus]: out of memory "
"when appending argument to reply");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto err;
}
os_free(path);
return reply;
err:
if (ssid) {
wpas_notify_network_removed(wpa_s, ssid);
wpa_config_remove_network(wpa_s->conf, ssid->id);
}
os_free(path);
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 || strcmp(iface, wpas_dbus_get_path(wpa_s)) != 0) {
reply = wpas_dbus_error_invald_args(message, op);
goto out;
}
id = strtoul(net_id, NULL, 10);
if (errno == EINVAL) {
reply = wpas_dbus_error_invald_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_disassociate(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 || strcmp(iface, wpas_dbus_get_path(wpa_s)) != 0) {
reply = wpas_dbus_error_invald_args(message, op);
goto out;
}
id = strtoul(net_id, NULL, 10);
if (errno == EINVAL) {
reply = wpas_dbus_error_invald_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) {
perror("wpas_dbus_handler_add_blob[dbus] out of memory when "
"trying to allocate blob struct");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto err;
}
blob->data = os_malloc(blob_len);
if (!blob->data) {
perror("wpas_dbus_handler_add_blob[dbus] out of memory when "
"trying to allocate 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 = strdup(blob_name);
if (!blob->name) {
perror("wpas_dbus_handler_add_blob[dbus] out of memory when "
"trying to copy 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) {
perror("wpas_dbus_handler_get_blob[dbus] out of memory when "
"trying to allocate return message");
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);
perror("wpas_dbus_handler_get_blob[dbus] out of memory when "
"trying to open array");
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);
perror("wpas_dbus_handler_get_blob[dbus] out of memory when "
"trying to append data to array");
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);
perror("wpas_dbus_handler_get_blob[dbus] out of memory when "
"trying to close array");
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_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_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;
DBusMessageIter iter, variant_iter;
const char *str_state;
char *state_ls, *tmp;
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,
"s", &variant_iter)) {
perror("wpas_dbus_getter_state[dbus] out of memory "
"when trying to open variant");
dbus_message_unref(reply);
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
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) {
perror("wpas_dbus_getter_state[dbus] out of memory "
"when trying read state");
dbus_message_unref(reply);
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
while (*tmp) {
*tmp = tolower(*tmp);
tmp++;
}
if (!dbus_message_iter_append_basic(&variant_iter,
DBUS_TYPE_STRING,
&state_ls)) {
perror("wpas_dbus_getter_state[dbus] out of memory "
"when trying append state");
dbus_message_unref(reply);
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
goto err;
}
if (!dbus_message_iter_close_container(&iter, &variant_iter)) {
perror("wpas_dbus_getter_state[dbus] out of memory "
"when trying close variant");
dbus_message_unref(reply);
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
goto err;
}
err:
os_free(state_ls);
}
out:
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)
{
DBusMessage *reply = NULL;
DBusMessageIter iter, variant_iter;
dbus_bool_t scanning = wpa_s->scanning ? TRUE : FALSE;
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,
"b", &variant_iter) ||
!dbus_message_iter_append_basic(&variant_iter,
DBUS_TYPE_BOOLEAN,
&scanning) ||
!dbus_message_iter_close_container(&iter, &variant_iter)) {
perror("wpas_dbus_getter_scanning[dbus]: out of "
"memory to put scanning state into message.");
dbus_message_unref(reply);
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
}
} else {
perror("wpas_dbus_getter_scanning[dbus]: out of "
"memory to return scanning state.");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
return reply;
}
/**
* 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)
{
DBusMessage *reply = NULL;
DBusMessageIter iter, variant_iter;
dbus_uint32_t ap_scan = wpa_s->conf->ap_scan;
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,
"u", &variant_iter) ||
!dbus_message_iter_append_basic(&variant_iter,
DBUS_TYPE_UINT32,
&ap_scan) ||
!dbus_message_iter_close_container(&iter, &variant_iter)) {
perror("wpas_dbus_getter_ap_scan[dbus]: out of "
"memory to put scanning state into message.");
dbus_message_unref(reply);
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
}
} else {
perror("wpas_dbus_getter_ap_scan[dbus]: out of "
"memory to return scanning state.");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
return reply;
}
/**
* 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;
DBusMessageIter iter, variant_iter;
dbus_uint32_t ap_scan;
if (!dbus_message_iter_init(message, &iter)) {
perror("wpas_dbus_getter_ap_scan[dbus]: out of "
"memory to return scanning state.");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
/* 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) != DBUS_TYPE_UINT32)
{
reply = wpas_dbus_error_invald_args(message,
"UINT32 required");
goto out;
}
dbus_message_iter_get_basic(&variant_iter, &ap_scan);
if (wpa_supplicant_set_ap_scan(wpa_s, ap_scan)) {
reply = wpas_dbus_error_invald_args(
message,
"ap_scan must equal 0, 1 or 2");
goto out;
}
out:
return reply;
}
/**
* 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)
{
DBusMessage *reply = NULL;
DBusMessageIter iter, variant_iter;
const char *ifname = NULL;
ifname = wpa_s->ifname;
if (ifname == NULL) {
wpa_printf(MSG_DEBUG, "wpas_dbus_getter_ifname[dbus]: "
"wpa_s has no interface name set"");");
return wpas_dbus_error_unknown_error(message,
"ifname not set");
}
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,
"s", &variant_iter) ||
!dbus_message_iter_append_basic(&variant_iter,
DBUS_TYPE_STRING,
&ifname) ||
!dbus_message_iter_close_container(&iter, &variant_iter)) {
perror("wpas_dbus_getter_ifname[dbus]: out of "
"memory to put ifname into message.");
dbus_message_unref(reply);
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
}
} else {
perror("wpas_dbus_getter_ifname[dbus]: out of "
"memory to return ifname state.");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
return reply;
}
/**
* 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)
{
DBusMessage *reply = NULL;
DBusMessageIter iter, variant_iter;
const char *driver = NULL;
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;
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,
"s", &variant_iter) ||
!dbus_message_iter_append_basic(&variant_iter,
DBUS_TYPE_STRING,
&driver) ||
!dbus_message_iter_close_container(&iter, &variant_iter)) {
perror("wpas_dbus_getter_driver[dbus]: out of "
"memory to put driver into message.");
dbus_message_unref(reply);
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
}
} else {
perror("wpas_dbus_getter_driver[dbus]: out of "
"memory to return driver.");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
return reply;
}
/**
* 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 = NULL;
DBusMessageIter iter, variant_iter;
const char *path = wpas_dbus_get_path(wpa_s);
char *bss_obj_path = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
int is_bssid_known = 0;
if (bss_obj_path == NULL) {
perror("wpas_dbus_getter_current_bss[dbus]: out of "
"memory to allocate result argument.");
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
if (!is_zero_ether_addr(wpa_s->bssid)) {
size_t i;
for (i = 0; i < wpa_s->scan_res->num; i++) {
struct wpa_scan_res *res = wpa_s->scan_res->res[i];
if (!os_memcmp(wpa_s->bssid, res->bssid, ETH_ALEN)) {
is_bssid_known = 1;
break;
}
}
}
if (is_bssid_known)
os_snprintf(bss_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
"%s/" WPAS_DBUS_NEW_BSSIDS_PART "/"
WPAS_DBUS_BSSID_FORMAT,
path, MAC2STR(wpa_s->bssid));
else
os_snprintf(bss_obj_path, WPAS_DBUS_OBJECT_PATH_MAX, "/");
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,
"o", &variant_iter) ||
!dbus_message_iter_append_basic(&variant_iter,
DBUS_TYPE_OBJECT_PATH,
&bss_obj_path) ||
!dbus_message_iter_close_container(&iter, &variant_iter)) {
perror("wpas_dbus_getter_current_bss[dbus]: out of "
"memory to put path into message.");
dbus_message_unref(reply);
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
}
} else {
perror("wpas_dbus_getter_current_bss[dbus]: out of "
"memory when creating reply.");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
os_free(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 = NULL;
DBusMessageIter iter, variant_iter;
const char *path = wpas_dbus_get_path(wpa_s);
char *net_obj_path = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
if (net_obj_path == NULL) {
perror("wpas_dbus_getter_current_network[dbus]: out of "
"memory to allocate result argument.");
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
if (wpa_s->current_ssid)
os_snprintf(net_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
"%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%u", path,
wpa_s->current_ssid->id);
else
os_snprintf(net_obj_path, WPAS_DBUS_OBJECT_PATH_MAX, "/");
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,
"o", &variant_iter) ||
!dbus_message_iter_append_basic(&variant_iter,
DBUS_TYPE_OBJECT_PATH,
&net_obj_path) ||
!dbus_message_iter_close_container(&iter, &variant_iter)) {
perror("wpas_dbus_getter_current_network[dbus]: out "
"of memory to put path into message.");
dbus_message_unref(reply);
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
}
} else {
perror("wpas_dbus_getter_current_network[dbus]: out of "
"memory when creating reply.");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
os_free(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)
{
DBusMessage *reply = NULL;
DBusMessageIter iter, variant_iter;
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);
}
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,
"s", &variant_iter) ||
!dbus_message_iter_append_basic(&variant_iter,
DBUS_TYPE_STRING,
&bridge_ifname) ||
!dbus_message_iter_close_container(&iter, &variant_iter)) {
perror("wpas_dbus_getter_bridge_ifname[dbus]: out of "
"memory to put bridge ifname into message.");
dbus_message_unref(reply);
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
}
} else {
perror("wpas_dbus_getter_bridge_ifname[dbus]: out of "
"memory to return bridge ifname.");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
return reply;
}
/**
* 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;
DBusMessageIter iter, variant_iter, array_iter;
size_t i;
/* Ensure we've actually got scan results to return */
if (wpa_s->scan_res == NULL &&
wpa_supplicant_get_scan_results(wpa_s) < 0) {
wpa_printf(MSG_ERROR, "wpas_dbus_getter_bsss[dbus]: "
"An error occurred getting scan results.");
return wpas_dbus_error_unknown_error(message, NULL);
}
/* Create and initialize the return message */
if (message == NULL)
reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
else
reply = dbus_message_new_method_return(message);
if (reply == NULL) {
perror("wpas_dbus_getter_bsss[dbus]: out of "
"memory to create return message.");
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,
"ao", &variant_iter) ||
!dbus_message_iter_open_container(&variant_iter, DBUS_TYPE_ARRAY,
DBUS_TYPE_OBJECT_PATH_AS_STRING,
&array_iter)) {
perror("wpas_dbus_getter_bsss[dbus]: out of "
"memory to open container.");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
/* Loop through scan results and append each result's object path */
for (i = 0; i < wpa_s->scan_res->num; i++) {
struct wpa_scan_res *res = wpa_s->scan_res->res[i];
char *path;
path = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
if (path == NULL) {
perror("wpas_dbus_getter_bsss[dbus]: out of "
"memory.");
dbus_message_unref(reply);
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
/* Construct the object path for this BSS. Note that ':'
* is not a valid character in dbus object paths.
*/
os_snprintf(path, WPAS_DBUS_OBJECT_PATH_MAX,
"%s/" WPAS_DBUS_NEW_BSSIDS_PART "/"
WPAS_DBUS_BSSID_FORMAT,
wpas_dbus_get_path(wpa_s),
MAC2STR(res->bssid));
dbus_message_iter_append_basic(&array_iter,
DBUS_TYPE_OBJECT_PATH, &path);
os_free(path);
}
if (!dbus_message_iter_close_container(&variant_iter, &array_iter) ||
!dbus_message_iter_close_container(&iter, &variant_iter)) {
perror("wpas_dbus_getter_bsss[dbus]: out of "
"memory to close container.");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
out:
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;
DBusMessageIter iter, variant_iter, array_iter;
struct wpa_ssid *ssid;
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);
}
/* Create and initialize the return message */
if (message == NULL)
reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
else
reply = dbus_message_new_method_return(message);
if (reply == NULL) {
perror("wpas_dbus_getter_networks[dbus]: out of "
"memory to create return message.");
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,
"ao", &variant_iter) ||
!dbus_message_iter_open_container(&variant_iter, DBUS_TYPE_ARRAY,
DBUS_TYPE_OBJECT_PATH_AS_STRING,
&array_iter)) {
perror("wpas_dbus_getter_networks[dbus]: out of "
"memory to open container.");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
/* Loop through configured networks and append object path if each */
for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
char *path;
path = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
if (path == NULL) {
perror("wpas_dbus_getter_networks[dbus]: out of "
"memory.");
dbus_message_unref(reply);
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
/* Construct the object path for this network. */
os_snprintf(path, WPAS_DBUS_OBJECT_PATH_MAX,
"%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%d",
wpas_dbus_get_path(wpa_s), ssid->id);
dbus_message_iter_append_basic(&array_iter,
DBUS_TYPE_OBJECT_PATH, &path);
os_free(path);
}
if (!dbus_message_iter_close_container(&variant_iter, &array_iter) ||
!dbus_message_iter_close_container(&iter, &variant_iter)) {
perror("wpas_dbus_getter_networks[dbus]: out of "
"memory to close container.");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
out:
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) {
perror("wpas_dbus_getter_blobs[dbus] out of memory when "
"trying to initialize return message");
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{say}", &variant_iter)) {
dbus_message_unref(reply);
perror("wpas_dbus_getter_blobs[dbus] out of memory when "
"trying to open variant");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_open_container(&variant_iter, DBUS_TYPE_ARRAY,
"{say}", &dict_iter)) {
dbus_message_unref(reply);
perror("wpas_dbus_getter_blobs[dbus] out of memory when "
"trying to open dictionary");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
blob = wpa_s->conf->blobs;
while (blob) {
if (!dbus_message_iter_open_container(&dict_iter,
DBUS_TYPE_DICT_ENTRY,
NULL, &entry_iter)) {
dbus_message_unref(reply);
perror("wpas_dbus_getter_blobs[dbus] out of memory "
"when trying to open entry");
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_append_basic(&entry_iter,
DBUS_TYPE_STRING,
&(blob->name))) {
dbus_message_unref(reply);
perror("wpas_dbus_getter_blobs[dbus] out of memory "
"when trying to append blob name");
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_open_container(&entry_iter,
DBUS_TYPE_ARRAY,
DBUS_TYPE_BYTE_AS_STRING,
&array_iter)) {
dbus_message_unref(reply);
perror("wpas_dbus_getter_blobs[dbus] out of memory "
"when trying to open array");
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);
perror("wpas_dbus_getter_blobs[dbus] out of memory "
"when trying to append blob data");
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_close_container(&entry_iter,
&array_iter)) {
dbus_message_unref(reply);
perror("wpas_dbus_getter_blobs[dbus] out of memory "
"when trying to close array");
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_close_container(&dict_iter,
&entry_iter)) {
dbus_message_unref(reply);
perror("wpas_dbus_getter_blobs[dbus] out of memory "
"when trying to close entry");
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
blob = blob->next;
}
if (!dbus_message_iter_close_container(&variant_iter, &dict_iter)) {
dbus_message_unref(reply);
perror("wpas_dbus_getter_blobs[dbus] out of memory when "
"trying to close dictionary");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_close_container(&iter, &variant_iter)) {
dbus_message_unref(reply);
perror("wpas_dbus_getter_blobs[dbus] out of memory when "
"trying to close variant");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
out:
return reply;
}
/**
* wpas_dbus_getter_bss_properties - Return the properties of a scanned bss
* @message: Pointer to incoming dbus message
* @bss: a pair of interface describing structure and bss' bssid
* Returns: a dbus message containing the properties for the requested bss
*
* Getter for "Properties" property.
*/
DBusMessage * wpas_dbus_getter_bss_properties(DBusMessage *message,
struct bss_handler_args *bss)
{
DBusMessage *reply = NULL;
DBusMessageIter iter, iter_dict, variant_iter;
const u8 *ie;
struct wpa_scan_res *res = find_scan_result(bss);
if (res == NULL)
return NULL;
/* Dump the properties into a dbus message */
if (message == NULL)
reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
else
reply = dbus_message_new_method_return(message);
if (!reply)
goto error;
dbus_message_iter_init_append(reply, &iter);
if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT,
"a{sv}", &variant_iter))
goto error;
if (!wpa_dbus_dict_open_write(&variant_iter, &iter_dict))
goto error;
if (!wpa_dbus_dict_append_byte_array(&iter_dict, "BSSID",
(const char *) res->bssid,
ETH_ALEN))
goto error;
ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
if (ie) {
if (!wpa_dbus_dict_append_byte_array(&iter_dict, "SSID",
(const char *) (ie + 2),
ie[1]))
goto error;
}
ie = wpa_scan_get_vendor_ie(res, WPA_IE_VENDOR_TYPE);
if (ie) {
if (!wpa_dbus_dict_append_byte_array(&iter_dict, "WPAIE",
(const char *) ie,
ie[1] + 2))
goto error;
}
ie = wpa_scan_get_ie(res, WLAN_EID_RSN);
if (ie) {
if (!wpa_dbus_dict_append_byte_array(&iter_dict, "RSNIE",
(const char *) ie,
ie[1] + 2))
goto error;
}
ie = wpa_scan_get_vendor_ie(res, WPS_IE_VENDOR_TYPE);
if (ie) {
if (!wpa_dbus_dict_append_byte_array(&iter_dict, "WPSIE",
(const char *) ie,
ie[1] + 2))
goto error;
}
if (res->freq) {
if (!wpa_dbus_dict_append_int32(&iter_dict, "Frequency",
res->freq))
goto error;
}
if (!wpa_dbus_dict_append_uint16(&iter_dict, "Capabilities",
res->caps))
goto error;
if (!(res->flags & WPA_SCAN_QUAL_INVALID) &&
!wpa_dbus_dict_append_int32(&iter_dict, "Quality", res->qual))
goto error;
if (!(res->flags & WPA_SCAN_NOISE_INVALID) &&
!wpa_dbus_dict_append_int32(&iter_dict, "Noise", res->noise))
goto error;
if (!(res->flags & WPA_SCAN_LEVEL_INVALID) &&
!wpa_dbus_dict_append_int32(&iter_dict, "Level", res->level))
goto error;
if (!wpa_dbus_dict_append_int32(&iter_dict, "MaxRate",
wpa_scan_get_max_rate(res) * 500000))
goto error;
if (!wpa_dbus_dict_close_write(&iter, &iter_dict))
goto error;
return reply;
error:
if (reply)
dbus_message_unref(reply);
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY, NULL);
}
/**
* 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)
{
DBusMessage *reply = NULL;
DBusMessageIter iter, variant_iter;
dbus_bool_t enabled = net->ssid->disabled ? FALSE : TRUE;
if (message == NULL)
reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
else
reply = dbus_message_new_method_return(message);
if (!reply) {
perror("wpas_dbus_getter_enabled[dbus] out of memory when "
"trying to initialize return message");
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,
"b", &variant_iter)) {
dbus_message_unref(reply);
perror("wpas_dbus_getter_enabled[dbus] out of memory when "
"trying to open variant");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_append_basic(&variant_iter,
DBUS_TYPE_BOOLEAN, &enabled)) {
dbus_message_unref(reply);
perror("wpas_dbus_getter_enabled[dbus] out of memory when "
"trying to append value");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_close_container(&iter, &variant_iter)) {
dbus_message_unref(reply);
perror("wpas_dbus_getter_blobs[dbus] out of memory when "
"trying to close variant");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
out:
return reply;
}
/**
* 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;
DBusMessageIter iter, variant_iter;
struct wpa_supplicant *wpa_s;
struct wpa_ssid *ssid;
dbus_bool_t enable;
if (!dbus_message_iter_init(message, &iter)) {
perror("wpas_dbus_setter_enabled[dbus] out of memory when "
"trying to init iterator");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
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) !=
DBUS_TYPE_BOOLEAN) {
perror("wpas_dbus_setter_enabled[dbus] "
"variant content should be boolean");
reply = dbus_message_new_error(message,
DBUS_ERROR_INVALID_ARGS,
"value should be a boolean");
goto out;
}
dbus_message_iter_get_basic(&variant_iter, &enable);
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);
out:
return reply;
}
/**
* 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;
#if 0
/* FIX: decide what to do with wpa_config_get_all */
char** props = wpa_config_get_all(net->ssid, 0);
#else
char **props = NULL;
#endif
if (!props) {
perror("wpas_dbus_getter_network_properties[dbus] couldn't "
"read network properties. out of memory.");
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) {
perror("wpas_dbus_getter_network_properties[dbus] out of "
"memory when trying to initialize return message");
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)) {
perror("wpas_dbus_getter_network_properties[dbus] out of "
"memory when trying to open variant container");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!wpa_dbus_dict_open_write(&variant_iter, &dict_iter)) {
perror("wpas_dbus_getter_network_properties[dbus] out of "
"memory when trying to open dict");
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))) {
perror("wpas_dbus_getter_network_properties[dbus] out "
"of memory when trying to add entry");
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)) {
perror("wpas_dbus_getter_network_properties[dbus] out of "
"memory when trying to close dictionary");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (!dbus_message_iter_close_container(&iter, &variant_iter)) {
perror("wpas_dbus_getter_network_properties[dbus] out of "
"memory when trying to close variant container");
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, ssid, &variant_iter);
if (reply)
wpa_printf(MSG_DEBUG, "dbus control interface couldn't set "
"network properties");
return reply;
}
#ifdef CONFIG_WPS
/**
* wpas_dbus_handler_wps_start - Start WPS configuration
* @message: Pointer to incoming dbus message
* @wpa_s: %wpa_supplicant data structure
* Returns: DBus message dictionary on success or DBus error on failure
*
* Handler for "Start" method call. DBus dictionary argument contains
* information about role (enrollee or registrar), authorization method
* (pin or push button) and optionally pin and bssid. Returned message
* has a dictionary argument which may contain newly generated pin (optional).
*/
DBusMessage * wpas_dbus_handler_wps_start(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage * reply = NULL;
DBusMessageIter iter, dict_iter, entry_iter, variant_iter, array_iter;
char *key, *val;
int role = 0; /* 0 - not set, 1 - enrollee, 2 - registrar */
int type = 0; /* 0 - not set, 1 - pin, 2 - pbc */
u8 *bssid = NULL;
char *pin = NULL, npin[9] = { '\0' };
int len, ret;
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);
if (os_strcmp(key, "Role") == 0) {
dbus_message_iter_recurse(&entry_iter, &variant_iter);
if (dbus_message_iter_get_arg_type(&variant_iter) !=
DBUS_TYPE_STRING) {
wpa_printf(MSG_DEBUG,
"wpas_dbus_handler_wps_start"
"[dbus]: "
"wrong Role type. string required");
reply = wpas_dbus_error_invald_args(
message, "Role must be a string");
goto out;
}
dbus_message_iter_get_basic(&variant_iter, &val);
if (os_strcmp(val, "enrollee") == 0)
role = 1;
else if (os_strcmp(val, "registrar") == 0)
role = 2;
else {
wpa_printf(MSG_DEBUG,
"wpas_dbus_handler_wps_start[dbus]: "
"unknown role %s", val);
reply = wpas_dbus_error_invald_args(message, val);
goto out;
}
} else if (strcmp(key, "Type") == 0) {
dbus_message_iter_recurse(&entry_iter, &variant_iter);
if (dbus_message_iter_get_arg_type(&variant_iter) !=
DBUS_TYPE_STRING) {
wpa_printf(MSG_DEBUG,
"wpas_dbus_handler_wps_start[dbus]: "
"wrong Type type. string required");
reply = wpas_dbus_error_invald_args(
message, "Type must be a string");
goto out;
}
dbus_message_iter_get_basic(&variant_iter, &val);
if (os_strcmp(val, "pin") == 0)
type = 1;
else if (os_strcmp(val, "pbc") == 0)
type = 2;
else {
wpa_printf(MSG_DEBUG,
"wpas_dbus_handler_wps_start[dbus]: "
"unknown type %s", val);
reply = wpas_dbus_error_invald_args(message,
val);
goto out;
}
} else if (strcmp(key, "Bssid") == 0) {
dbus_message_iter_recurse(&entry_iter, &variant_iter);
if (dbus_message_iter_get_arg_type(&variant_iter) !=
DBUS_TYPE_ARRAY ||
dbus_message_iter_get_element_type(&variant_iter) !=
DBUS_TYPE_ARRAY) {
wpa_printf(MSG_DEBUG,
"wpas_dbus_handler_wps_start[dbus]: "
"wrong Bssid type. byte array required");
reply = wpas_dbus_error_invald_args(
message, "Bssid must be a byte array");
goto out;
}
dbus_message_iter_recurse(&variant_iter, &array_iter);
dbus_message_iter_get_fixed_array(&array_iter, &bssid,
&len);
if (len != ETH_ALEN) {
wpa_printf(MSG_DEBUG,
"wpas_dbus_handler_wps_start[dbus]: "
"wrong Bssid length %d", len);
reply = wpas_dbus_error_invald_args(
message, "Bssid is wrong length");
goto out;
}
}
else if (os_strcmp(key, "Pin") == 0) {
dbus_message_iter_recurse(&entry_iter, &variant_iter);
if (dbus_message_iter_get_arg_type(&variant_iter) !=
DBUS_TYPE_STRING) {
wpa_printf(MSG_DEBUG,
"wpas_dbus_handler_wps_start[dbus]: "
"wrong Pin type. string required");
reply = wpas_dbus_error_invald_args(
message, "Pin must be a string");
goto out;
}
dbus_message_iter_get_basic(&variant_iter, &pin);
} else {
wpa_printf(MSG_DEBUG,
"wpas_dbus_handler_wps_start[dbus]: "
"unknown key %s", key);
reply = wpas_dbus_error_invald_args(message, key);
goto out;
}
dbus_message_iter_next(&dict_iter);
}
if (role == 0) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_wps_start[dbus]: "
"Role not specified");
reply = wpas_dbus_error_invald_args(message,
"Role not specified");
goto out;
}
else if (role == 1 && type == 0) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_wps_start[dbus]: "
"Type not specified");
reply = wpas_dbus_error_invald_args(message,
"Type not specified");
goto out;
}
else if (role == 2 && pin == NULL) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_wps_start[dbus]: "
"Pin required for registrar role.");
reply = wpas_dbus_error_invald_args(
message, "Pin required for registrar role.");
goto out;
}
if (role == 2)
ret = wpas_wps_start_reg(wpa_s, bssid, pin, NULL);
else if (type == 1) {
ret = wpas_wps_start_pin(wpa_s, bssid, pin);
if (ret > 0)
os_snprintf(npin, sizeof(npin), "%08d", ret);
} else
ret = wpas_wps_start_pbc(wpa_s, bssid);
if (ret < 0) {
wpa_printf(MSG_DEBUG, "wpas_dbus_handler_wps_start[dbus]: "
"wpas_wps_failed in role %s and key %s.",
(role == 1 ? "enrollee" : "registrar"),
(type == 0 ? "" : (type == 1 ? "pin" : "pbc")));
reply = wpas_dbus_error_unknown_error(message,
"wps start failed");
goto out;
}
reply = dbus_message_new_method_return(message);
if (!reply) {
perror("wpas_dbus_handler_wps_start[dbus]: out of memory "
"when creating reply");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
dbus_message_iter_init_append(reply, &iter);
if (!wpa_dbus_dict_open_write(&iter, &dict_iter)) {
perror("wpas_dbus_handler_wps_start[dbus]: out of memory "
"when opening dictionary");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
if (os_strlen(npin) > 0) {
if (!wpa_dbus_dict_append_string(&dict_iter, "Pin", npin)) {
perror("wpas_dbus_handler_wps_start[dbus]: "
"out of memory when appending pin");
dbus_message_unref(reply);
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
}
if (!wpa_dbus_dict_close_write(&iter, &dict_iter)) {
perror("wpas_dbus_handler_wps_start[dbus]: out of memory "
"when closing dictionary");
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
out:
return reply;
}
/**
* wpas_dbus_getter_process_credentials - Check if credentials are processed
* @message: Pointer to incoming dbus message
* @wpa_s: %wpa_supplicant data structure
* Returns: DBus message with a boolean on success or DBus error on failure
*
* Getter for "ProcessCredentials" property. Returns returned boolean will be
* true if wps_cred_processing configuration field is not equal to 1 or false
* if otherwise.
*/
DBusMessage * wpas_dbus_getter_process_credentials(
DBusMessage *message, struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
DBusMessageIter iter, variant_iter;
dbus_bool_t process = (wpa_s->conf->wps_cred_processing != 1);
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,
"b", &variant_iter) ||
!dbus_message_iter_append_basic(&variant_iter,
DBUS_TYPE_BOOLEAN,
&process) ||
!dbus_message_iter_close_container(&iter, &variant_iter)) {
perror("wpas_dbus_getter_process_credentials[dbus]: "
"out of memory to put value into message.");
dbus_message_unref(reply);
reply = dbus_message_new_error(message,
DBUS_ERROR_NO_MEMORY,
NULL);
}
} else {
perror("wpas_dbus_getter_process_credentials[dbus]: out of "
"memory to create reply message.");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
}
return reply;
}
/**
* wpas_dbus_setter_process_credentials - Set credentials_processed conf param
* @message: Pointer to incoming dbus message
* @wpa_s: %wpa_supplicant data structure
* Returns: NULL on success or DBus error on failure
*
* Setter for "ProcessCredentials" property. Sets credentials_processed on 2
* if boolean argument is true or on 1 if otherwise.
*/
DBusMessage * wpas_dbus_setter_process_credentials(
DBusMessage *message, struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
DBusMessageIter iter, variant_iter;
dbus_bool_t process_credentials, old_pc;
if (!dbus_message_iter_init(message, &iter)) {
perror("wpas_dbus_getter_ap_scan[dbus]: out of "
"memory to return scanning state.");
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto out;
}
/* 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) != DBUS_TYPE_BOOLEAN)
{
reply = wpas_dbus_error_invald_args(message,
"BOOLEAN required");
goto out;
}
dbus_message_iter_get_basic(&variant_iter, &process_credentials);
old_pc = (wpa_s->conf->wps_cred_processing != 1);
wpa_s->conf->wps_cred_processing = (process_credentials ? 2 : 1);
if ((wpa_s->conf->wps_cred_processing != 1) != old_pc)
wpa_dbus_signal_property_changed(
wpa_s->global->dbus_new_ctrl_iface,
(WPADBusPropertyAccessor)
wpas_dbus_getter_process_credentials,
wpa_s, wpas_dbus_get_path(wpa_s),
WPAS_DBUS_NEW_IFACE_WPS,
"ProcessCredentials");
out:
return reply;
}
#endif /* CONFIG_WPS */