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Add 6 GHz channel validation during channel switching

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The following command does not return FAIL, but it fails to update the
beacon since the center frequency used in the command is not valid for
80 MHz bandwidth.

 hostapd_cli -i wlan0 chan_switch 5 6315 sec_channel_offset=1 \
 center_freq1=6345 bandwidth=80 he

Add condition check to validate the center frequency.

Also, if user doesn't provide HE parameter in the hostapd_cli
chan_switch command, by default HE should be enabled for 6 GHz
frequency range. This is because, 6 GHz does not support legacy
mode.

Signed-off-by: Anilkumar Kolli <quic_akolli@quicinc.com>
Co-developed-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
This commit is contained in:
Anilkumar Kolli 2023-03-13 11:13:02 +05:30 • committed by Jouni Malinen
parent 5349a45d32
commit 744295c8bc
1 changed files with 20 additions and 0 deletions
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20
hostapd/ctrl_iface.c
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@ -2437,6 +2437,26 @@ static int hostapd_ctrl_check_freq_params(struct hostapd_freq_params *params,
{ {
u32 start_freq; u32 start_freq;
if (is_6ghz_freq(params->freq)) {
const int bw_idx[] = { 20, 40, 80, 160, 320 };
int idx, bw;
/* The 6 GHz band requires HE to be enabled. */
params->he_enabled = 1;
if (params->center_freq1) {
if (params->freq == 5935)
idx = (params->center_freq1 - 5925) / 5;
else
idx = (params->center_freq1 - 5950) / 5;
bw = center_idx_to_bw_6ghz(idx);
if (bw < 0 || bw > (int) ARRAY_SIZE(bw_idx) ||
bw_idx[bw] != params->bandwidth)
return -1;
}
}
switch (params->bandwidth) { switch (params->bandwidth) {
case 0: case 0:
/* bandwidth not specified: use 20 MHz by default */ /* bandwidth not specified: use 20 MHz by default */