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AP: Allow identifying which passphrase station used with wpa_psk_file

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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>
This commit is contained in:
Michal Kazior 2019-01-16 13:35:19 +01:00 • committed by Jouni Malinen
parent b08c9ad0c7
commit ec5c39a557
6 changed files with 103 additions and 9 deletions
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2
src/ap/sta_info.h
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@ -324,6 +324,8 @@ int ap_sta_set_vlan(struct hostapd_data *hapd, struct sta_info *sta,
void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta);
void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta);
int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta);
const char * ap_sta_wpa_get_keyid(struct hostapd_data *hapd,
struct sta_info *sta);
void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
const u8 *addr, u16 reason);