fragattacks/hostapd/hostapd.wpa_psk
Michal Kazior ec5c39a557 AP: Allow identifying which passphrase station used with wpa_psk_file
It is now possible to optionally specify keyid for
each wpa_psk_file entry:

 keyid=something 00:00:00:00:00:00 secretpassphrase

When station connects and the passphrase it used
has an associated keyid it will be appended to the
AP-STA-CONNECTED event string:

 wlan0: AP-STA-CONNECTED 00:36:76:21:dc:7b keyid=something

It's also possible to retrieve it through the control interface:

 $ hostapd_cli all_sta
 Selected interface 'ap0'
 00:36:76:21:dc:7b
 ...
 keyid=something

New hostapd is able to read old wpa_psk_file. However, old hostapd will
not be able to read the new wpa_psk_file if it includes keyids.

Signed-off-by: Michal Kazior <michal@plume.com>
2019-01-26 17:52:04 +02:00

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# List of WPA PSKs. Each line, except for empty lines and lines starting
# with #, must contain a MAC address and PSK separated with a space.
# Special MAC address 00:00:00:00:00:00 can be used to configure PSKs that
# anyone can use. PSK can be configured as an ASCII passphrase of 8..63
# characters or as a 256-bit hex PSK (64 hex digits).
# An optional key identifier can be added by prefixing the line with
# keyid=<keyid_string>
00:00:00:00:00:00 secret passphrase
00:11:22:33:44:55 another passphrase
00:22:33:44:55:66 0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef
keyid=example_id 00:11:22:33:44:77 passphrase with keyid
00:00:00:00:00:00 another passphrase for all STAs