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From 71e9c65a7c8af90a5fd11072062b596421316452 Mon Sep 17 00:00:00 2001
From: Peter Oh <peter.oh@bowerswilkins.com>
Date: Mon, 27 Aug 2018 14:28:46 -0700
Subject: [PATCH 4/7] mesh: do not set offchanok on DFS channels in non-ETSI
mac80211 does not allow mgmt tx to use off channel on
DFS channels in non-ETSI domain, because it will invalidate
CAC result on current operating channel.
(mac80211 commit: 34373d12f3cbb74960a73431138ef619d857996f)
Hence don't set offchanok for mgmt tx in case of DFS channels
in non-ETSI.
Signed-off-by: Peter Oh <peter.oh@bowerswilkins.com>
---
src/drivers/driver_nl80211.c | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -7411,6 +7411,10 @@ static int wpa_driver_nl80211_send_actio
int ret = -1;
u8 *buf;
struct ieee80211_hdr *hdr;
+ struct hostapd_hw_modes *modes;
+ int i, offchanok = 1;
+ u16 num_modes, flags;
+ u8 dfs_domain;
wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
"freq=%u MHz wait=%d ms no_cck=%d)",
@@ -7435,6 +7439,21 @@ static int wpa_driver_nl80211_send_actio
os_memset(bss->rand_addr, 0, ETH_ALEN);
}
+ if (is_mesh_interface(drv->nlmode)) {
+ modes = nl80211_get_hw_feature_data(bss, &num_modes,
+ &flags, &dfs_domain);
+ if (dfs_domain != HOSTAPD_DFS_REGION_ETSI &&
+ ieee80211_is_dfs(bss->freq, modes, num_modes))
+ offchanok = 0;
+ if (modes) {
+ for (i = 0; i < num_modes; i++) {
+ os_free(modes[i].channels);
+ os_free(modes[i].rates);
+ }
+ os_free(modes);
+ }
+ }
+
if (is_ap_interface(drv->nlmode) &&
(!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) ||
(int) freq == bss->freq || drv->device_ap_sme ||
@@ -7446,7 +7465,7 @@ static int wpa_driver_nl80211_send_actio
ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf,
24 + data_len,
&drv->send_action_cookie,
- no_cck, 0, 1, NULL, 0);
+ no_cck, 0, offchanok, NULL, 0);
os_free(buf);
return ret;
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