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wlan-ap-Telecominfraproject/feeds/wifi-ax/hostapd/patches/e00-003-mesh-support-6ghz-support-in-11s-mesh.patch
John Crispin 528a778e38 open-converged-wireless: Import 21.02 based uCentral tree 
Signed-off-by: John Crispin <john@phrozen.org>
2021-03-25 12:19:47 +01:00

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From 38823a3ae9fd084ee5822dfb228e109656187e85 Mon Sep 17 00:00:00 2001
From: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Date: Tue, 8 Sep 2020 14:24:37 -0700
Subject: [PATCH] hostapd: Enable 6ghz support in 11s mesh
Enable 6ghz frequencies support in 11s mesh.
Configurations are similar to 5G/2G bands.
example:
network={
ssid="pr6gmesh123"
key_mgmt=SAE
mode=5
frequency=6195
psk="1234567890"
}
Also, fix assigning secondary channel for only bandwidth greater
than 20 MHz.
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
---
wpa_supplicant/mesh.c | 6 ++++
wpa_supplicant/wpa_supplicant.c | 54 +++++++++++++++++++++------------
2 files changed, 41 insertions(+), 21 deletions(-)
Index: hostapd-2020-07-02-58b384f4/wpa_supplicant/mesh.c
===================================================================
--- hostapd-2020-07-02-58b384f4.orig/wpa_supplicant/mesh.c
+++ hostapd-2020-07-02-58b384f4/wpa_supplicant/mesh.c
@@ -370,6 +370,11 @@ static int wpa_supplicant_mesh_init(stru
}
if (ssid->noscan)
conf->noscan = 1;
+ ifmsh->freq = frequency;
+
+ /* set 6GHz op_class defaulted to 80MHz */
+ if (is_6ghz_freq(frequency))
+ conf->op_class = 133;
if (ssid->ht40)
conf->secondary_channel = ssid->ht40;
if (conf->hw_mode == HOSTAPD_MODE_IEEE80211A && ssid->vht) {
Index: hostapd-2020-07-02-58b384f4/wpa_supplicant/wpa_supplicant.c
===================================================================
--- hostapd-2020-07-02-58b384f4.orig/wpa_supplicant/wpa_supplicant.c
+++ hostapd-2020-07-02-58b384f4/wpa_supplicant/wpa_supplicant.c
@@ -2401,7 +2401,9 @@ void ibss_mesh_setup_freq(struct wpa_sup
struct hostapd_hw_modes *mode = NULL;
int ht40plus[] = { 1, 2, 3, 4, 5, 6, 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157,
184, 192 };
- int vht80[] = { 36, 52, 100, 116, 132, 149 };
+ unsigned int bw80[] = { 5180, 5260, 5500, 5580, 5660, 5745, 5955,
+ 6035, 6115, 6195, 6275, 6355, 6435, 6515,
+ 6595, 6675, 6755, 6835, 6915, 6995 };
struct hostapd_channel_data *pri_chan = NULL, *sec_chan = NULL;
u8 channel;
int i, chan_idx, ht40 = -1, res, obss_scan = !(ssid->noscan);
@@ -2409,7 +2411,7 @@ void ibss_mesh_setup_freq(struct wpa_sup
struct hostapd_freq_params vht_freq;
int chwidth, seg0, seg1;
u32 vht_caps = 0;
- int is_24ghz;
+ int is_24ghz, is_6ghz;
int dfs_enabled = wpa_s->conf->country[0] &&
(wpa_s->drv_flags & WPA_DRIVER_FLAGS_RADAR);
@@ -2465,9 +2467,16 @@ void ibss_mesh_setup_freq(struct wpa_sup
if (!mode)
return;
+ freq->channel = channel;
+
is_24ghz = hw_mode == HOSTAPD_MODE_IEEE80211G ||
hw_mode == HOSTAPD_MODE_IEEE80211B;
+ /* HT/VHT and corresponding overrides are not applicable to 6GHz.
+ * However, HE is mandatory for 6ghz */
+ if ((is_6ghz = is_6ghz_freq(freq->freq) && (hw_mode == HOSTAPD_MODE_IEEE80211A)) == 1)
+ goto skip_to_6ghz;
+
#ifdef CONFIG_HT_OVERRIDES
if (ssid->disable_ht) {
freq->ht_enabled = 0;
@@ -2606,8 +2615,6 @@ skip_ht40:
!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_VHT_IBSS))
return;
- vht_freq = *freq;
-
#ifdef CONFIG_VHT_OVERRIDES
if (ssid->disable_vht) {
freq->vht_enabled = 0;
@@ -2615,12 +2622,16 @@ skip_ht40:
}
#endif /* CONFIG_VHT_OVERRIDES */
+skip_to_6ghz:
+ vht_freq = *freq;
+
+ /* 6GHz does not have vht enabled. So Allow */
vht_freq.vht_enabled = vht_supported(mode);
- if (!vht_freq.vht_enabled)
+ if (!vht_freq.vht_enabled && !is_6ghz)
return;
/* Enable HE with VHT for 5 GHz */
- freq->he_enabled = mode->he_capab[ieee80211_mode].he_supported;
+ vht_freq.he_enabled = mode->he_capab[ieee80211_mode].he_supported;
#ifdef CONFIG_HE_OVERRIDES
if (is_24ghz)
@@ -2628,16 +2639,14 @@ skip_ht40:
#endif /* CONFIG_HE_OVERRIDES */
/* setup center_freq1, bandwidth */
- for (j = 0; j < ARRAY_SIZE(vht80); j++) {
- if (freq->channel >= vht80[j] &&
- freq->channel < vht80[j] + 16)
+ for (j = 0; j < ARRAY_SIZE(bw80); j++)
+ if (freq->freq == bw80[j])
break;
- }
- if (j == ARRAY_SIZE(vht80))
+ if (j == ARRAY_SIZE(bw80))
return;
- for (i = vht80[j]; i < vht80[j] + 16; i += 4) {
+ for (i = freq->channel; i < freq->channel + 16; i += 4) {
struct hostapd_channel_data *chan;
chan = hw_get_channel_chan(mode, i, NULL);
@@ -2653,16 +2662,20 @@ skip_ht40:
}
chwidth = CHANWIDTH_80MHZ;
- seg0 = vht80[j] + 6;
+ seg0 = freq->channel + 6;
seg1 = 0;
if (ssid->max_oper_chwidth == CHANWIDTH_80P80MHZ) {
/* setup center_freq2, bandwidth */
- for (k = 0; k < ARRAY_SIZE(vht80); k++) {
+ for (k = 0; k < ARRAY_SIZE(bw80); k++) {
/* Only accept 80 MHz segments separated by a gap */
- if (j == k || abs(vht80[j] - vht80[k]) == 16)
+ if (j == k || abs(bw80[j] - bw80[k]) == 80)
continue;
- for (i = vht80[k]; i < vht80[k] + 16; i += 4) {
+
+ if (ieee80211_freq_to_chan(bw80[k], &channel) == NUM_HOSTAPD_MODES)
+ return;
+
+ for (i = channel; i < channel + 16; i += 4) {
struct hostapd_channel_data *chan;
chan = hw_get_channel_chan(mode, i, NULL);
@@ -2677,9 +2690,10 @@ skip_ht40:
/* Found a suitable second segment for 80+80 */
chwidth = CHANWIDTH_80P80MHZ;
- vht_caps |=
- VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ;
- seg1 = vht80[k] + 6;
+ if (!is_6ghz)
+ vht_caps |=
+ VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ;
+ seg1 = channel + 6;
}
if (chwidth == CHANWIDTH_80P80MHZ)
@@ -2697,7 +2711,7 @@ skip_ht40:
}
} else if (ssid->max_oper_chwidth == CHANWIDTH_USE_HT) {
chwidth = CHANWIDTH_USE_HT;
- seg0 = vht80[j] + 2;
+ seg0 = freq->channel + 2;
#ifdef CONFIG_HT_OVERRIDES
if (ssid->disable_ht40)
seg0 = 0;
Index: hostapd-2020-07-02-58b384f4/wpa_supplicant/ap.c
===================================================================
--- hostapd-2020-07-02-58b384f4.orig/wpa_supplicant/ap.c
+++ hostapd-2020-07-02-58b384f4/wpa_supplicant/ap.c
@@ -237,11 +237,11 @@ int wpa_supplicant_conf_ap_ht(struct wpa
wpas_conf_ap_vht(wpa_s, ssid, conf, mode);
}
- if (mode->he_capab[wpas_mode_to_ieee80211_mode(
- ssid->mode)].he_supported &&
- ssid->he)
- conf->ieee80211ax = 1;
}
+ if (mode->he_capab[wpas_mode_to_ieee80211_mode(
+ ssid->mode)].he_supported && ssid->he)
+ conf->ieee80211ax = 1;
+
}
if (conf->secondary_channel) {
Index: hostapd-2020-07-02-58b384f4/wpa_supplicant/mesh_mpm.c
===================================================================
--- hostapd-2020-07-02-58b384f4.orig/wpa_supplicant/mesh_mpm.c
+++ hostapd-2020-07-02-58b384f4/wpa_supplicant/mesh_mpm.c
@@ -251,6 +251,9 @@ static void mesh_mpm_send_plink_action(s
HE_MAX_MCS_CAPAB_SIZE +
HE_MAX_PPET_CAPAB_SIZE;
buf_len += 3 + sizeof(struct ieee80211_he_operation);
+ if (is_6ghz_op_class(bss->iconf->op_class))
+ buf_len += sizeof(struct ieee80211_he_6ghz_oper_info) +
+ 3 + sizeof(struct ieee80211_he_6ghz_band_cap);
}
#endif /* CONFIG_IEEE80211AX */
if (type != PLINK_CLOSE)
@@ -380,6 +383,7 @@ static void mesh_mpm_send_plink_action(s
pos = hostapd_eid_he_capab(bss, he_capa_oper,
IEEE80211_MODE_MESH);
pos = hostapd_eid_he_operation(bss, pos);
+ pos = hostapd_eid_he_6ghz_band_cap(bss, pos);
wpabuf_put_data(buf, he_capa_oper, pos - he_capa_oper);
}
#endif /* CONFIG_IEEE80211AX */
@@ -746,6 +750,7 @@ static struct sta_info * mesh_mpm_add_pe
#ifdef CONFIG_IEEE80211AX
copy_sta_he_capab(data, sta, IEEE80211_MODE_MESH,
elems->he_capabilities, elems->he_capabilities_len);
+ copy_sta_he_6ghz_capab(data, sta, elems->he_6ghz_band_cap);
#endif /* CONFIG_IEEE80211AX */
if (hostapd_get_aid(data, sta) < 0) {
@@ -767,6 +772,7 @@ static struct sta_info * mesh_mpm_add_pe
params.vht_capabilities = sta->vht_capabilities;
params.he_capab = sta->he_capab;
params.he_capab_len = sta->he_capab_len;
+ params.he_6ghz_capab = sta->he_6ghz_capab;
params.flags |= WPA_STA_WMM;
params.flags_mask |= WPA_STA_AUTHENTICATED;
if (conf->security == MESH_CONF_SEC_NONE) {
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