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dbus: Add D-Bus property for current MAC address

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Since wpa_supplicant can change MAC address of the interface on its own
(with randomization enabled) it makes sense to introduce MACAddress as a
property of the interface and send notifications about its change.

This allows other applications to just use D-Bus instead of both
communicating over D-Bus with wpa_supplicant and listening to Netlink
notifications for MAC changes.

Signed-off-by: Andrzej Ostruszka <amo@semihalf.com>
This commit is contained in:
Andrzej Ostruszka 2022-12-01 16:43:44 +01:00 • committed by Jouni Malinen
parent 12d8b8a91e
commit 1897abad94
8 changed files with 52 additions and 0 deletions
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8
wpa_supplicant/dbus/dbus_new.c
View file

@ -2344,6 +2344,9 @@ void wpas_dbus_signal_prop_changed(struct wpa_supplicant *wpa_s,
case WPAS_DBUS_PROP_BSS_TM_STATUS:
prop = "BSSTMStatus";
break;
case WPAS_DBUS_PROP_MAC_ADDRESS:
prop = "MACAddress";
break;
default:
wpa_printf(MSG_ERROR, "dbus: %s: Unknown Property value %d",
__func__, property);
@ -3939,6 +3942,11 @@ static const struct wpa_dbus_property_desc wpas_dbus_interface_properties[] = {
wpas_dbus_setter_mac_address_randomization_mask,
NULL
},
{ "MACAddress", WPAS_DBUS_NEW_IFACE_INTERFACE, "ay",
wpas_dbus_getter_mac_address,
NULL,
NULL,
},
{ NULL, NULL, NULL, NULL, NULL, NULL }
};

1
wpa_supplicant/dbus/dbus_new.h
View file

@ -38,6 +38,7 @@ enum wpas_dbus_prop {
WPAS_DBUS_PROP_ROAM_COMPLETE,
WPAS_DBUS_PROP_SESSION_LENGTH,
WPAS_DBUS_PROP_BSS_TM_STATUS,
WPAS_DBUS_PROP_MAC_ADDRESS,
};
enum wpas_dbus_bss_prop {

21
wpa_supplicant/dbus/dbus_new_handlers.c
View file

@ -4753,6 +4753,27 @@ dbus_bool_t wpas_dbus_getter_mac_address_randomization_mask(
}
/**
* wpas_dbus_getter_mac_address - Get MAC address of an interface
* @iter: Pointer to incoming dbus message iter
* @error: Location to store error on failure
* @user_data: Function specific data
* Returns: a list of stations
*
* Getter for "MACAddress" property.
*/
dbus_bool_t wpas_dbus_getter_mac_address(
const struct wpa_dbus_property_desc *property_desc,
DBusMessageIter *iter, DBusError *error, void *user_data)
{
struct wpa_supplicant *wpa_s = user_data;
return wpas_dbus_simple_array_property_getter(iter, DBUS_TYPE_BYTE,
wpa_s->own_addr, ETH_ALEN,
error);
}
/**
* wpas_dbus_getter_sta_address - Return the address of a connected station
* @iter: Pointer to incoming dbus message iter

1
wpa_supplicant/dbus/dbus_new_handlers.h
View file

@ -196,6 +196,7 @@ DECLARE_ACCESSOR(wpas_dbus_getter_blobs);
DECLARE_ACCESSOR(wpas_dbus_getter_stas);
DECLARE_ACCESSOR(wpas_dbus_getter_mac_address_randomization_mask);
DECLARE_ACCESSOR(wpas_dbus_setter_mac_address_randomization_mask);
DECLARE_ACCESSOR(wpas_dbus_getter_mac_address);
DECLARE_ACCESSOR(wpas_dbus_getter_sta_address);
DECLARE_ACCESSOR(wpas_dbus_getter_sta_aid);
DECLARE_ACCESSOR(wpas_dbus_getter_sta_caps);