This would be great to report upstream as a feature request.
** Changed in: network-manager (Ubuntu)
Importance: Undecided => Wishlist
** Changed in: network-manager (Ubuntu)
Status: New => Triaged
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https://bugs.launchpad.net/bugs/1573856
Title:
NetworkManager resets spoofed mac address to physical mac
Status in network-manager package in Ubuntu:
Triaged
Bug description:
Ubuntu 16.04 bumped NetworkManager to version 1.1.93. Unlike 15.10
(with v1.0.4) and earlier NetworkManager now resets temporary mac of
an interface to actual physical mac effectively disabling typical wifi
anonymization technics.
Same issue is present in just released NetworkManager 1.2.
It appears that sometime between 1.0.10 and 1.1.93 there was a change
in src/devices/wifi/nm-device-wifi.c from
/* Set spoof MAC to the interface */
cloned_mac = nm_setting_wireless_get_cloned_mac_address (s_wireless);
if (cloned_mac)
nm_device_set_hw_addr (device, cloned_mac, "set", LOGD_WIFI);
to
/* Set spoof MAC to the interface */
cloned_mac = nm_setting_wireless_get_cloned_mac_address (s_wireless);
nm_device_set_hw_addr (device, cloned_mac, "set", LOGD_WIFI);
cloned_mac is NULL if not specified in NetworkManager GUI. When called
with NULL nm_device_set_hw_addr sets the mac to physical mac of the
interface.
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