Set AP MAC address

[anecdata]

Allow setting the Access Point mac_address. Like #5571, but for AP. Also, when hostname is set, set it for AP as well as Station.

Example code to demonstrate the feature, with results in the comments:

import time
import wifi
from secrets import secrets

# after init, wifi is started/enabled, wifi mode is station
# hostname is default, mac_addresses are default
print("# Defaults:")
print(wifi.radio.hostname)
print(f'{wifi.radio.mac_address[5]:02X}')
print(f'{wifi.radio.mac_address_ap[5]:02X}')

# set a new hostname
print("# New hostname:")
wifi.radio.hostname = "hostname24".encode()
print(wifi.radio.hostname)

# set new Station MAC address and connect to an external AP
print("# Station MAC address:")
wifi.radio.mac_address = bytes((0x7A, 0xDF, 0xA1, 0xFF, 0xFF, 0x24))
print(":".join("%02X" % _ for _ in wifi.radio.mac_address))
wifi.radio.connect(secrets["ssid"], secrets["password"])
if wifi.radio.ipv4_address:
    print("Connected.")
# router shows Station as:
# hostname24 7A:DF:A1:FF:FF:24

# disable / stop wifi (Station will be disconnected from its external AP)
print("# Disable / stop wifi")
wifi.radio.enabled = False

# start an on-board AP and set its MAC address
print("AP MAC address:")
wifi.radio.start_ap("ZZZ_📶", "wqiugdf23894756", authmode=[wifi.AuthMode.WPA2, wifi.AuthMode.PSK])
wifi.radio.mac_address_ap = bytes((0x7A, 0xDF, 0xA1, 0xFF, 0xFF, 0x25))  # Local MAC address
print(":".join("%02X" % _ for _ in wifi.radio.mac_address_ap))

# enable / restart wifi & re-check the AP MAC address
print("# Enable / restart wifi:")
wifi.radio.enabled = True
print("AP Gateway", wifi.radio.ipv4_gateway_ap)
print("AP Subnet ", wifi.radio.ipv4_subnet_ap)
print("AP IPv4   ", wifi.radio.ipv4_address_ap)
print(":".join("%02X" % _ for _ in wifi.radio.mac_address_ap))
print("# Check external wifi utility...")
time.sleep(15)  # allow time to check external wifi utility...
# wifi utility shows AP as:
# SSID BSSID             RSSI CHANNEL HT CC SECURITY (auth/unicast/group)
# ZZZ_📶 7a:df:a1:ff:ff:25 -23  1,+1    Y  CN WPA2(PSK/AES,TKIP/TKIP)

# stop AP and try to set MAC address
wifi.radio.stop_ap()
wifi.radio.mac_address_ap = bytes((0x7A, 0xDF, 0xA1, 0xFF, 0xFF, 0x26))  # Local MAC address
# exception, as expected:
# RuntimeError: Interface must be started
print(":".join("%02X" % _ for _ in wifi.radio.mac_address_ap))

[tannewt]

Cool. Thank you!