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Add frequency to operating class determination for 5 GHz channel 144

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Commit 45c3e72952 ("Add frequency to operating class determination
for 5 GHz 100..140") extends ieee80211_freq_to_channel_ext() with
knowledge of the operating classes for the 5 GHz channels 100..140.

Per "Table E-4 - Global operating classes" in IEEE Std 802.11-2020, 5
GHz channel 144 also maps to same operating classes, so update hostapd
code to reflect the change.

This issue is found when OCV enabled and 4-way-handshake failed due
to client OCI includes op_class 0 for channel 144. This showed
up in following manner in the debug log:

WPA: OCI KDE in EAPOL-Key - hexdump(len=9): dd 07 00 0f ac 0d 00 90 00
Error interpreting OCI: unrecognized opclass/channel pair (0/144)

Signed-off-by: Hu Wang <huw@codeaurora.org>
This commit is contained in:
Hu Wang 2021-08-25 17:25:33 +08:00 committed by Jouni Malinen
parent e5173e8b12
commit a95144cf34
1 changed files with 2 additions and 2 deletions
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4
src/common/ieee802_11_common.c
View file

@ -1011,8 +1011,8 @@ enum hostapd_hw_mode ieee80211_freq_to_channel_ext(unsigned int freq,
return HOSTAPD_MODE_IEEE80211A;
}
/* 5 GHz, channels 100..140 */
if (freq >= 5000 && freq <= 5700) {
/* 5 GHz, channels 100..144 */
if (freq >= 5500 && freq <= 5720) {
if ((freq - 5000) % 5)
return NUM_HOSTAPD_MODES;