/**
* wpas_dbus_global_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. Handles requests
* by dbus clients for the object path of an specific network interface.
*/
DBusMessage * wpas_dbus_global_get_interface(DBusMessage *message,
struct wpa_global *global)
{
DBusMessage *reply = NULL;
const char *ifname;
const char *path;
struct wpa_supplicant *wpa_s;
if (!dbus_message_get_args(message, NULL,
DBUS_TYPE_STRING, &ifname,
DBUS_TYPE_INVALID)) {
reply = wpas_dbus_new_invalid_opts_error(message, NULL);
goto out;
}
wpa_s = wpa_supplicant_get_iface(global, ifname);
if (wpa_s == NULL) {
reply = wpas_dbus_new_invalid_iface_error(message);
goto out;
}
path = wpa_s->dbus_path;
reply = dbus_message_new_method_return(message);
dbus_message_append_args(reply,
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID);
out:
return reply;
}
/**
* wpas_dbus_iface_select_network - Attempt association with a configured network
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing a UINT32 indicating success (1) or
* failure (0)
*
* Handler function for "selectNetwork" method call of network interface.
*/
DBusMessage * wpas_dbus_iface_select_network(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
const char *op;
struct wpa_ssid *ssid;
char *iface_obj_path = NULL;
char *network = NULL;
if (os_strlen(dbus_message_get_signature(message)) == 0) {
/* Any network */
ssid = NULL;
} else {
int nid;
if (!dbus_message_get_args(message, NULL,
DBUS_TYPE_OBJECT_PATH, &op,
DBUS_TYPE_INVALID)) {
reply = wpas_dbus_new_invalid_opts_error(message,
NULL);
goto out;
}
/* Extract the network number */
iface_obj_path = wpas_dbus_decompose_object_path(op,
&network,
NULL);
if (iface_obj_path == NULL) {
reply = wpas_dbus_new_invalid_iface_error(message);
goto out;
}
/* Ensure the object path really points to this interface */
if (os_strcmp(iface_obj_path, wpa_s->dbus_path) != 0) {
reply = wpas_dbus_new_invalid_network_error(message);
goto out;
}
nid = strtoul(network, NULL, 10);
if (errno == EINVAL) {
reply = wpas_dbus_new_invalid_network_error(message);
goto out;
}
ssid = wpa_config_get_network(wpa_s->conf, nid);
if (ssid == NULL) {
reply = wpas_dbus_new_invalid_network_error(message);
goto out;
}
}
/* Finally, associate with the network */
wpa_supplicant_select_network(wpa_s, ssid);
reply = wpas_dbus_new_success_reply(message);
out:
os_free(iface_obj_path);
os_free(network);
return reply;
}
/**
* wpas_dbus_global_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_global_remove_interface(DBusMessage *message,
struct wpa_global *global)
{
struct wpa_supplicant *wpa_s;
char *path;
DBusMessage *reply = NULL;
if (!dbus_message_get_args(message, NULL,
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID)) {
reply = wpas_dbus_new_invalid_opts_error(message, NULL);
goto out;
}
wpa_s = wpa_supplicant_get_iface_by_dbus_path(global, path);
if (wpa_s == NULL) {
reply = wpas_dbus_new_invalid_iface_error(message);
goto out;
}
if (!wpa_supplicant_remove_iface(global, wpa_s, 0)) {
reply = wpas_dbus_new_success_reply(message);
} else {
reply = dbus_message_new_error(message,
WPAS_ERROR_REMOVE_ERROR,
"wpa_supplicant couldn't "
"remove this interface.");
}
out:
return reply;
}
/**
* wpas_iface_message_handler - Dispatch messages for interfaces or networks
* @connection: Connection to the system message bus
* @message: An incoming dbus message
* @user_data: A pointer to a dbus control interface data structure
* Returns: Whether or not the message was handled
*
* This function dispatches all incoming dbus messages for network interfaces,
* or objects owned by them, such as scanned BSSIDs and configured networks.
*/
static DBusHandlerResult wpas_iface_message_handler(DBusConnection *connection,
DBusMessage *message,
void *user_data)
{
struct wpa_supplicant *wpa_s = user_data;
const char *method = dbus_message_get_member(message);
const char *path = dbus_message_get_path(message);
const char *msg_interface = dbus_message_get_interface(message);
char *iface_obj_path = NULL;
char *network = NULL;
char *bssid = NULL;
DBusMessage *reply = NULL;
/* Caller must specify a message interface */
if (!msg_interface)
goto out;
iface_obj_path = wpas_dbus_decompose_object_path(path, &network,
&bssid);
if (iface_obj_path == NULL) {
reply = wpas_dbus_new_invalid_iface_error(message);
goto out;
}
/* Make sure the message's object path actually refers to the
* wpa_supplicant structure it's supposed to (which is wpa_s)
*/
if (wpa_supplicant_get_iface_by_dbus_path(wpa_s->global,
iface_obj_path) != wpa_s) {
reply = wpas_dbus_new_invalid_iface_error(message);
goto out;
}
if (network && !strcmp(msg_interface, WPAS_DBUS_IFACE_NETWORK)) {
/* A method for one of this interface's configured networks */
int nid = strtoul(network, NULL, 10);
if (errno != EINVAL)
reply = wpas_dispatch_network_method(message, wpa_s,
nid);
else
reply = wpas_dbus_new_invalid_network_error(message);
} else if (bssid && !strcmp(msg_interface, WPAS_DBUS_IFACE_BSSID)) {
/* A method for one of this interface's scanned BSSIDs */
reply = wpas_dispatch_bssid_method(message, wpa_s, bssid);
} else if (!strcmp(msg_interface, WPAS_DBUS_IFACE_INTERFACE)) {
/* A method for an interface only. */
if (!strcmp(method, "scan"))
reply = wpas_dbus_iface_scan(message, wpa_s);
else if (!strcmp(method, "scanResults"))
reply = wpas_dbus_iface_scan_results(message, wpa_s);
else if (!strcmp(method, "addNetwork"))
reply = wpas_dbus_iface_add_network(message, wpa_s);
else if (!strcmp(method, "removeNetwork"))
reply = wpas_dbus_iface_remove_network(message, wpa_s);
else if (!strcmp(method, "selectNetwork"))
reply = wpas_dbus_iface_select_network(message, wpa_s);
else if (!strcmp(method, "capabilities"))
reply = wpas_dbus_iface_capabilities(message, wpa_s);
else if (!strcmp(method, "disconnect"))
reply = wpas_dbus_iface_disconnect(message, wpa_s);
else if (!strcmp(method, "setAPScan"))
reply = wpas_dbus_iface_set_ap_scan(message, wpa_s);
else if (!strcmp(method, "setSmartcardModules"))
reply = wpas_dbus_iface_set_smartcard_modules(message,
wpa_s);
else if (!strcmp(method, "state"))
reply = wpas_dbus_iface_get_state(message, wpa_s);
else if (!strcmp(method, "scanning"))
reply = wpas_dbus_iface_get_scanning(message, wpa_s);
else if (!strcmp(method, "setBlobs"))
reply = wpas_dbus_iface_set_blobs(message, wpa_s);
else if (!strcmp(method, "removeBlobs"))
reply = wpas_dbus_iface_remove_blobs(message, wpa_s);
#ifdef CONFIG_WPS
else if (!os_strcmp(method, "wpsPbc"))
reply = wpas_dbus_iface_wps_pbc(message, wpa_s);
else if (!os_strcmp(method, "wpsPin"))
reply = wpas_dbus_iface_wps_pin(message, wpa_s);
else if (!os_strcmp(method, "wpsReg"))
reply = wpas_dbus_iface_wps_reg(message, wpa_s);
#endif /* CONFIG_WPS */
else if (!os_strcmp(method, "flush"))
reply = wpas_dbus_iface_flush(message, wpa_s);
}
/* If the message was handled, send back the reply */
if (reply) {
if (!dbus_message_get_no_reply(message))
dbus_connection_send(connection, reply, NULL);
dbus_message_unref(reply);
}
out:
os_free(iface_obj_path);
os_free(network);
os_free(bssid);
return reply ? DBUS_HANDLER_RESULT_HANDLED :
DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
/**
* wpas_dbus_iface_select_network - Attempt association with a configured network
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing a UINT32 indicating success (1) or
* failure (0)
*
* Handler function for "selectNetwork" method call of network interface.
*/
DBusMessage * wpas_dbus_iface_select_network(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
const char *op;
struct wpa_ssid *ssid;
char *iface_obj_path = NULL;
char *network = NULL;
if (strlen(dbus_message_get_signature(message)) == 0) {
/* Any network */
ssid = wpa_s->conf->ssid;
while (ssid) {
ssid->disabled = 0;
ssid = ssid->next;
}
wpa_s->reassociate = 1;
wpa_supplicant_req_scan(wpa_s, 0, 0);
} else {
const char *obj_path;
int nid;
if (!dbus_message_get_args(message, NULL,
DBUS_TYPE_OBJECT_PATH, &op,
DBUS_TYPE_INVALID)) {
reply = wpas_dbus_new_invalid_opts_error(message,
NULL);
goto out;
}
/* Extract the network number */
iface_obj_path = wpas_dbus_decompose_object_path(op,
&network,
NULL);
if (iface_obj_path == NULL) {
reply = wpas_dbus_new_invalid_iface_error(message);
goto out;
}
/* Ensure the object path really points to this interface */
obj_path = wpa_supplicant_get_dbus_path(wpa_s);
if (strcmp(iface_obj_path, obj_path) != 0) {
reply = wpas_dbus_new_invalid_network_error(message);
goto out;
}
nid = strtoul(network, NULL, 10);
if (errno == EINVAL) {
reply = wpas_dbus_new_invalid_network_error(message);
goto out;
}
ssid = wpa_config_get_network(wpa_s->conf, nid);
if (ssid == NULL) {
reply = wpas_dbus_new_invalid_network_error(message);
goto out;
}
/* Finally, associate with the network */
if (ssid != wpa_s->current_ssid && wpa_s->current_ssid)
wpa_supplicant_disassociate(
wpa_s, WLAN_REASON_DEAUTH_LEAVING);
/* Mark all other networks disabled and trigger reassociation
*/
ssid = wpa_s->conf->ssid;
while (ssid) {
ssid->disabled = (nid != ssid->id);
ssid = ssid->next;
}
wpa_s->disconnected = 0;
wpa_s->reassociate = 1;
wpa_supplicant_req_scan(wpa_s, 0, 0);
}
reply = wpas_dbus_new_success_reply(message);
out:
free(iface_obj_path);
free(network);
return reply;
}
