To refer to the MAC address on a device's label, one can
specify the alias label-mac-device in the DTS which should
point to the bearer of the corresponding MAC address.
With the function get_mac_label, the user can retrieve then
retrieve this address and use it as a value that uniquely
identifies his device.
This is severely helpful for several downstream functionalities,
e.g. define MAC addresses of custom netifs or change the SSID to
be easily recognizable.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
The actual retrieval of the MAC address in mtd_get_mac_binary_ubi()
is the same as in get_mac_binary(). Thus, use the latter function
in the former to reduce duplicate code.
This will also allow to benefit from the enhanced path check there
and bring mtd_get_mac_binary_ubi() more in line with the similar
mtd_get_mac_binary().
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Logic was inverted when changing from string check to file check.
Fix it.
Fixes: 8592602d0a ("base-files: Really check path in get_mac_binary")
Reported-by: Matthias Schiffer <mschiffer@universe-factory.net>
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Currently, path argument is only checked for being not empty.
This changes behavior to actually check whether path exists.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
