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hostapd: DFS for channel switch in repeater mode 

In repeater mode remote AP may request channel switch to a new channel.
Check if DFS is required for the new channel before proceeding with
normal AP operations. Start CAC procedure if radar detection is required
and channel is not yet marked as available.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
This commit is contained in:
Sergey Matyukevich 2020-01-28 15:09:54 +00:00 committed by Jouni Malinen
parent c60717f839
commit 91498a1225
1 changed files with 6 additions and 0 deletions
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6
src/ap/drv_callbacks.c
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@ -945,6 +945,12 @@ void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht,
} else if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) {
wpa_msg(hapd->msg_ctx, MSG_INFO, AP_CSA_FINISHED
"freq=%d dfs=%d", freq, is_dfs);
} else if (is_dfs &&
hostapd_is_dfs_required(hapd->iface) &&
!hostapd_is_dfs_chan_available(hapd->iface) &&
!hapd->iface->cac_started) {
hostapd_disable_iface(hapd->iface);
hostapd_enable_iface(hapd->iface);
}
for (i = 0; i < hapd->iface->num_bss; i++)