[PATCH V4] hostapd: Add Operating Mode Notification support
Marek Kwaczynski
marek.kwaczynski
Mon Feb 10 04:43:05 PST 2014
Handling Operating Mode Notification received in Assoc Request.
Signed-hostap: Marek Kwaczynski <marek.kwaczynski at tieto.com>
---
src/ap/ap_drv_ops.c | 4 +++-
src/ap/ap_drv_ops.h | 2 +-
src/ap/ieee802_11.c | 7 ++++++-
src/ap/ieee802_11.h | 2 ++
src/ap/ieee802_11_vht.c | 27 +++++++++++++++++++++++++++
src/ap/sta_info.h | 2 ++
src/common/ieee802_11_common.c | 5 +++++
src/common/ieee802_11_common.h | 1 +
src/common/ieee802_11_defs.h | 7 +++++++
src/drivers/driver.h | 2 ++
src/drivers/driver_nl80211.c | 6 ++++++
11 files changed, 62 insertions(+), 3 deletions(-)
diff --git a/src/ap/ap_drv_ops.c b/src/ap/ap_drv_ops.c
index 893e6d9..e998fc6 100644
--- a/src/ap/ap_drv_ops.c
+++ b/src/ap/ap_drv_ops.c
@@ -346,7 +346,7 @@ int hostapd_sta_add(struct hostapd_data *hapd,
u16 listen_interval,
const struct ieee80211_ht_capabilities *ht_capab,
const struct ieee80211_vht_capabilities *vht_capab,
- u32 flags, u8 qosinfo)
+ u32 flags, u8 qosinfo, u8 vht_opmode)
{
struct hostapd_sta_add_params params;
@@ -364,6 +364,8 @@ int hostapd_sta_add(struct hostapd_data *hapd,
params.listen_interval = listen_interval;
params.ht_capabilities = ht_capab;
params.vht_capabilities = vht_capab;
+ params.vht_opmode_enabled = !!(flags & WLAN_STA_VHT_OPMODE_ENABLED);
+ params.vht_opmode = vht_opmode;
params.flags = hostapd_sta_flags_to_drv(flags);
params.qosinfo = qosinfo;
return hapd->driver->sta_add(hapd->drv_priv, ¶ms);
diff --git a/src/ap/ap_drv_ops.h b/src/ap/ap_drv_ops.h
index 15a4b26..9edaf7d 100644
--- a/src/ap/ap_drv_ops.h
+++ b/src/ap/ap_drv_ops.h
@@ -40,7 +40,7 @@ int hostapd_sta_add(struct hostapd_data *hapd,
u16 listen_interval,
const struct ieee80211_ht_capabilities *ht_capab,
const struct ieee80211_vht_capabilities *vht_capab,
- u32 flags, u8 qosinfo);
+ u32 flags, u8 qosinfo, u8 vht_opmode);
int hostapd_set_privacy(struct hostapd_data *hapd, int enabled);
int hostapd_set_generic_elem(struct hostapd_data *hapd, const u8 *elem,
size_t elem_len);
diff --git a/src/ap/ieee802_11.c b/src/ap/ieee802_11.c
index dee3c7a..d64af8e 100644
--- a/src/ap/ieee802_11.c
+++ b/src/ap/ieee802_11.c
@@ -910,6 +910,11 @@ static u16 check_assoc_ies(struct hostapd_data *hapd, struct sta_info *sta,
elems.vht_capabilities_len);
if (resp != WLAN_STATUS_SUCCESS)
return resp;
+
+ resp = set_sta_vht_opmode(hapd, sta, elems.vht_opmode_notif);
+ if (resp != WLAN_STATUS_SUCCESS)
+ return resp;
+
if (hapd->iconf->ieee80211ac && hapd->iconf->require_vht &&
!(sta->flags & WLAN_STA_VHT)) {
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
@@ -1953,7 +1958,7 @@ static void handle_assoc_cb(struct hostapd_data *hapd,
sta->listen_interval,
sta->flags & WLAN_STA_HT ? &ht_cap : NULL,
sta->flags & WLAN_STA_VHT ? &vht_cap : NULL,
- sta->flags, sta->qosinfo)) {
+ sta->flags, sta->qosinfo, sta->vht_opmode)) {
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_NOTICE,
"Could not add STA to kernel driver");
diff --git a/src/ap/ieee802_11.h b/src/ap/ieee802_11.h
index 5edeb71..6ad35f1 100644
--- a/src/ap/ieee802_11.h
+++ b/src/ap/ieee802_11.h
@@ -62,6 +62,8 @@ u16 copy_sta_ht_capab(struct hostapd_data *hapd, struct sta_info *sta,
void update_ht_state(struct hostapd_data *hapd, struct sta_info *sta);
u16 copy_sta_vht_capab(struct hostapd_data *hapd, struct sta_info *sta,
const u8 *vht_capab, size_t vht_capab_len);
+u16 set_sta_vht_opmode(struct hostapd_data *hapd, struct sta_info *sta,
+ const u8 *vht_opmode);
void hostapd_tx_status(struct hostapd_data *hapd, const u8 *addr,
const u8 *buf, size_t len, int ack);
void hostapd_eapol_tx_status(struct hostapd_data *hapd, const u8 *dst,
diff --git a/src/ap/ieee802_11_vht.c b/src/ap/ieee802_11_vht.c
index f2ab182..66fc01f 100644
--- a/src/ap/ieee802_11_vht.c
+++ b/src/ap/ieee802_11_vht.c
@@ -108,6 +108,33 @@ u16 copy_sta_vht_capab(struct hostapd_data *hapd, struct sta_info *sta,
return WLAN_STATUS_SUCCESS;
}
+u16 set_sta_vht_opmode(struct hostapd_data *hapd, struct sta_info *sta,
+ const u8 *vht_oper_notif)
+{
+ u8 channel_width;
+
+ if (!vht_oper_notif) {
+ sta->flags &= ~WLAN_STA_VHT_OPMODE_ENABLED;
+ return WLAN_STATUS_SUCCESS;
+ }
+
+ channel_width = *vht_oper_notif & VHT_OPMODE_CHANNEL_WIDTH_MASK;
+
+ if (channel_width != VHT_CHANWIDTH_USE_HT &&
+ channel_width != VHT_CHANWIDTH_80MHZ &&
+ channel_width != VHT_CHANWIDTH_160MHZ &&
+ channel_width != VHT_CHANWIDTH_80P80MHZ &&
+ ((*vht_oper_notif & VHT_OPMODE_CHANNEL_RxNSS_MASK) >>
+ VHT_OPMODE_NOTIF_RX_NSS_SHIFT) > VHT_RX_NSS_MAX_STREAMS - 1) {
+ sta->flags &= ~WLAN_STA_VHT_OPMODE_ENABLED;
+ return WLAN_STATUS_UNSPECIFIED_FAILURE;
+ }
+
+ sta->flags |= WLAN_STA_VHT_OPMODE_ENABLED;
+ sta->vht_opmode = *vht_oper_notif;
+ return WLAN_STATUS_SUCCESS;
+}
+
void hostapd_get_vht_capab(struct hostapd_data *hapd,
struct ieee80211_vht_capabilities *vht_cap,
struct ieee80211_vht_capabilities *neg_vht_cap)
diff --git a/src/ap/sta_info.h b/src/ap/sta_info.h
index 9b77e06..1973af6 100644
--- a/src/ap/sta_info.h
+++ b/src/ap/sta_info.h
@@ -27,6 +27,7 @@
#define WLAN_STA_GAS BIT(17)
#define WLAN_STA_VHT BIT(18)
#define WLAN_STA_WNM_SLEEP_MODE BIT(19)
+#define WLAN_STA_VHT_OPMODE_ENABLED BIT(20)
#define WLAN_STA_PENDING_DISASSOC_CB BIT(29)
#define WLAN_STA_PENDING_DEAUTH_CB BIT(30)
#define WLAN_STA_NONERP BIT(31)
@@ -104,6 +105,7 @@ struct sta_info {
struct ieee80211_ht_capabilities *ht_capabilities;
struct ieee80211_vht_capabilities *vht_capabilities;
+ u8 vht_opmode;
#ifdef CONFIG_IEEE80211W
int sa_query_count; /* number of pending SA Query requests;
* 0 = no SA Query in progress */
diff --git a/src/common/ieee802_11_common.c b/src/common/ieee802_11_common.c
index 809089f..50bdc01 100644
--- a/src/common/ieee802_11_common.c
+++ b/src/common/ieee802_11_common.c
@@ -252,6 +252,11 @@ ParseRes ieee802_11_parse_elems(const u8 *start, size_t len,
elems->vht_operation = pos;
elems->vht_operation_len = elen;
break;
+ case WLAN_EID_VHT_OPERATING_MODE_NOTIFICATION:
+ if (elen != 1)
+ break;
+ elems->vht_opmode_notif = pos;
+ break;
case WLAN_EID_LINK_ID:
if (elen < 18)
break;
diff --git a/src/common/ieee802_11_common.h b/src/common/ieee802_11_common.h
index b84dd9e..4fb2e84 100644
--- a/src/common/ieee802_11_common.h
+++ b/src/common/ieee802_11_common.h
@@ -30,6 +30,7 @@ struct ieee802_11_elems {
const u8 *ht_operation;
const u8 *vht_capabilities;
const u8 *vht_operation;
+ const u8 *vht_opmode_notif;
const u8 *vendor_ht_cap;
const u8 *p2p;
const u8 *wfd;
diff --git a/src/common/ieee802_11_defs.h b/src/common/ieee802_11_defs.h
index 6f7f777..c567017 100644
--- a/src/common/ieee802_11_defs.h
+++ b/src/common/ieee802_11_defs.h
@@ -764,6 +764,13 @@ struct ieee80211_vht_operation {
#define VHT_CAP_RX_ANTENNA_PATTERN ((u32) BIT(28))
#define VHT_CAP_TX_ANTENNA_PATTERN ((u32) BIT(29))
+#define VHT_OPMODE_CHANNEL_WIDTH_MASK ((u8) BIT(0) | BIT(1))
+#define VHT_OPMODE_CHANNEL_RxNSS_MASK ((u8) BIT(4) | BIT(5) | BIT(6))
+#define VHT_OPMODE_NOTIF_RX_NSS_SHIFT 4
+#define VHT_OPMODE_LEN 1
+
+#define VHT_RX_NSS_MAX_STREAMS 8
+
/* VHT channel widths */
#define VHT_CHANWIDTH_USE_HT 0
#define VHT_CHANWIDTH_80MHZ 1
diff --git a/src/drivers/driver.h b/src/drivers/driver.h
index 2f4536e..f4b4672 100644
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -1007,6 +1007,8 @@ struct hostapd_sta_add_params {
u16 listen_interval;
const struct ieee80211_ht_capabilities *ht_capabilities;
const struct ieee80211_vht_capabilities *vht_capabilities;
+ int vht_opmode_enabled;
+ u8 vht_opmode;
u32 flags; /* bitmask of WPA_STA_* flags */
int set; /* Set STA parameters instead of add */
u8 qosinfo;
diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index 81f20b3..20642a1 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -7347,6 +7347,12 @@ static int wpa_driver_nl80211_sta_add(void *priv,
params->vht_capabilities);
}
+ if (params->vht_opmode_enabled) {
+ wpa_printf(MSG_DEBUG, " * opmode=%u", params->vht_opmode);
+ NLA_PUT_U8(msg, NL80211_ATTR_OPMODE_NOTIF,
+ params->vht_opmode);
+ }
+
wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability);
NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability);
--
1.7.9.5
More information about the Hostap
mailing list