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station: enforce MFPR=1 for 6GHz frequencies

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This adds checks if MFP is set to 0 or 1:

0 - Always fail if the frequency is 6GHz
1 - Fail if MFPC=0 and the frequency is 6GHz.
    If HW is capable set MFPR=1 for 6GHz
This commit is contained in:
James Prestwood 2022-02-25 14:03:38 -08:00 committed by Denis Kenzior
parent 2f50038363
commit c20828f252
1 changed files with 24 additions and 1 deletions
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25
src/station.c
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@ -1012,9 +1012,13 @@ static int station_build_handshake_rsn(struct handshake_state *hs,
struct ie_rsn_info info; struct ie_rsn_info info;
uint8_t *ap_ie; uint8_t *ap_ie;
bool disable_ocv; bool disable_ocv;
enum band_freq band;
memset(&info, 0, sizeof(info)); memset(&info, 0, sizeof(info));
if (!band_freq_to_channel(bss->frequency, &band))
goto not_supported;
memset(&bss_info, 0, sizeof(bss_info)); memset(&bss_info, 0, sizeof(bss_info));
scan_bss_get_rsn_info(bss, &bss_info); scan_bss_get_rsn_info(bss, &bss_info);
@ -1061,12 +1065,31 @@ static int station_build_handshake_rsn(struct handshake_state *hs,
switch (mfp_setting) { switch (mfp_setting) {
case 0: case 0:
break; if (band != BAND_FREQ_6_GHZ)
break;
l_error("MFP turned off by [General].ManagementFrameProtection,"
" 6GHz frequencies are disabled");
goto not_supported;
case 1: case 1:
info.group_management_cipher = info.group_management_cipher =
wiphy_select_cipher(wiphy, wiphy_select_cipher(wiphy,
bss_info.group_management_cipher); bss_info.group_management_cipher);
info.mfpc = info.group_management_cipher != 0; info.mfpc = info.group_management_cipher != 0;
if (band != BAND_FREQ_6_GHZ)
break;
if (!info.mfpc)
goto not_supported;
/*
* 802.11ax Section 12.12.2
* The STA shall use management frame protection
* (MFPR=1) when using RSN.
*/
info.mfpr = true;
break; break;
case 2: case 2:
info.group_management_cipher = info.group_management_cipher =