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dbus: Pass in MAC address in CreateInterface method

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chromeOS uses random generated MAC address for AP interface so that the
device could remain anonymous and untrackable. Add an address parameter
for CreateInterface method to pass in OS managed MAC address.

Signed-off-by: Jintao Lin <jintaolin@chromium.org>
This commit is contained in:
Jintao Lin 2022-12-06 00:37:04 +00:00 committed by Jouni Malinen
parent b0722cf75e
commit 87bad8afad
2 changed files with 16 additions and 1 deletions
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1
doc/dbus.doxygen
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@ -43,6 +43,7 @@ registered in the bus with fi.w1.wpa_supplicant1 name.
<tr><td>ConfigFile</td><td>s</td><td>Configuration file path</td><td>No</td>
<tr><td>Create</td><td>b</td><td>Whether to create a new interface in the kernel</td><td>No</td>
<tr><td>Type</td><td>s</td><td>Interface type to create (sta or ap)</td><td>No</td>
<tr><td>Address</td><td>s</td><td>MAC address in colon-delimited format to be used in the created interface</td><td>No</td>
</table>
</dd>
</dl>

16
wpa_supplicant/dbus/dbus_new_handlers.c
View file

@ -774,6 +774,7 @@ DBusMessage * wpas_dbus_handler_create_interface(DBusMessage *message,
char *confname = NULL;
char *bridge_ifname = NULL;
bool create_iface = false;
u8 *if_addr = NULL;
enum wpa_driver_if_type if_type = WPA_IF_STATION;
dbus_message_iter_init(message, &iter);
@ -826,6 +827,18 @@ DBusMessage * wpas_dbus_handler_create_interface(DBusMessage *message,
goto error;
}
wpa_dbus_dict_entry_clear(&entry);
} else if (os_strcmp(entry.key, "Address") == 0 &&
entry.type == DBUS_TYPE_STRING) {
if_addr = os_malloc(ETH_ALEN);
if (if_addr == NULL) {
wpa_dbus_dict_entry_clear(&entry);
goto oom;
}
if (hwaddr_aton(entry.str_value, if_addr)) {
wpa_dbus_dict_entry_clear(&entry);
goto error;
}
wpa_dbus_dict_entry_clear(&entry);
} else {
wpa_dbus_dict_entry_clear(&entry);
goto error;
@ -855,7 +868,7 @@ DBusMessage * wpas_dbus_handler_create_interface(DBusMessage *message,
__func__, ifname);
if (!global->ifaces ||
wpa_drv_if_add(global->ifaces, if_type, ifname,
NULL, NULL, NULL, mac_addr,
if_addr, NULL, NULL, mac_addr,
NULL) < 0) {
reply = wpas_dbus_error_unknown_error(
message,
@ -895,6 +908,7 @@ out:
os_free(ifname);
os_free(confname);
os_free(bridge_ifname);
os_free(if_addr);
return reply;
error: