* [PATCH wireless-next v2 01/16] wifi: cfg80211: Allow RSTA role without LMR request
2026-03-04 7:15 [PATCH wireless-next v2 00/16] wifi: Ranging support enhancements Peddolla Harshavardhan Reddy
@ 2026-03-04 7:15 ` Peddolla Harshavardhan Reddy
2026-03-04 7:15 ` [PATCH wireless-next v2 02/16] wifi: cfg80211: cancel pmsr_free_wk in cfg80211_pmsr_wdev_down Peddolla Harshavardhan Reddy
` (14 subsequent siblings)
15 siblings, 0 replies; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-04 7:15 UTC (permalink / raw)
To: johannes; +Cc: linux-wireless, kavita.kavita
Currently when enabling RSTA role in PMSR FTM requests,
pmsr_parse_ftm() mandates LMR feedback to be requested. This
prevents valid use cases where devices need to operate as RSTA
without waking the host for measurement reports.
Remove the check that enforces LMR feedback for RSTA role and
update the documentation to clarify that LMR feedback is optional,
though required if measurement results are needed.
This allows devices to act as RSTA for proximity detection without
unnecessary host wakeups while maintaining the option to receive
results when needed through LMR feedback.
Fixes: 853800c746d3 ("wifi: nl80211/cfg80211: support operating as RSTA in PMSR FTM request")
Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com>
---
include/net/cfg80211.h | 5 +++--
include/uapi/linux/nl80211.h | 5 ++---
net/wireless/pmsr.c | 7 -------
3 files changed, 5 insertions(+), 12 deletions(-)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 8cd870ece351..a54300b6899a 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4363,8 +4363,9 @@ struct cfg80211_pmsr_result {
* EDCA based ranging will be used.
* @lmr_feedback: negotiate for I2R LMR feedback. Only valid if either
* @trigger_based or @non_trigger_based is set.
- * @rsta: Operate as the RSTA in the measurement. Only valid if @lmr_feedback
- * and either @trigger_based or @non_trigger_based is set.
+ * @rsta: Operate as the RSTA in the measurement. Only valid if either
+ * @trigger_based or @non_trigger_based is set. Set @lmr_feedback
+ * to receive measurement results in response.
* @bss_color: the bss color of the responder. Optional. Set to zero to
* indicate the driver should set the BSS color. Only valid if
* @non_trigger_based or @trigger_based is set.
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 0b7a06c2b9f7..8e4f9192d8b7 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -7961,9 +7961,8 @@ enum nl80211_peer_measurement_ftm_capa {
* channel specified in %NL80211_PMSR_PEER_ATTR_CHAN until it receives the
* FTM request from the peer or the timeout specified by
* %NL80211_ATTR_TIMEOUT has expired.
- * Only valid if %NL80211_PMSR_FTM_REQ_ATTR_LMR_FEEDBACK is set (so the
- * RSTA will have the measurement results to report back in the FTM
- * response).
+ * Set %NL80211_PMSR_FTM_REQ_ATTR_LMR_FEEDBACK to ensure RSTA will have
+ * the measurement results to report back in the FTM response.
*
* @NUM_NL80211_PMSR_FTM_REQ_ATTR: internal
* @NL80211_PMSR_FTM_REQ_ATTR_MAX: highest attribute number
diff --git a/net/wireless/pmsr.c b/net/wireless/pmsr.c
index 556f30f5d60a..b875b61c0b48 100644
--- a/net/wireless/pmsr.c
+++ b/net/wireless/pmsr.c
@@ -195,13 +195,6 @@ static int pmsr_parse_ftm(struct cfg80211_registered_device *rdev,
return -EOPNOTSUPP;
}
- if (out->ftm.rsta && !out->ftm.lmr_feedback) {
- NL_SET_ERR_MSG_ATTR(info->extack,
- tb[NL80211_PMSR_FTM_REQ_ATTR_RSTA],
- "FTM: RSTA set without LMR feedback");
- return -EINVAL;
- }
-
return 0;
}
--
2.34.1
^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH wireless-next v2 02/16] wifi: cfg80211: cancel pmsr_free_wk in cfg80211_pmsr_wdev_down
2026-03-04 7:15 [PATCH wireless-next v2 00/16] wifi: Ranging support enhancements Peddolla Harshavardhan Reddy
2026-03-04 7:15 ` [PATCH wireless-next v2 01/16] wifi: cfg80211: Allow RSTA role without LMR request Peddolla Harshavardhan Reddy
@ 2026-03-04 7:15 ` Peddolla Harshavardhan Reddy
2026-03-04 7:15 ` [PATCH wireless-next v2 03/16] wifi: cfg80211: Add MAC address filter to remain_on_channel Peddolla Harshavardhan Reddy
` (13 subsequent siblings)
15 siblings, 0 replies; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-04 7:15 UTC (permalink / raw)
To: johannes; +Cc: linux-wireless, kavita.kavita
When the nl80211 socket that originated a PMSR request is
closed, cfg80211_release_pmsr() sets the request's nl_portid
to zero and schedules pmsr_free_wk to process the abort
asynchronously. If the interface is concurrently torn down
before that work runs, cfg80211_pmsr_wdev_down() calls
cfg80211_pmsr_process_abort() directly. However, the already-
scheduled pmsr_free_wk work item remains pending and may run
after the interface has been removed from the driver. This
could cause the driver's abort_pmsr callback to operate on a
torn-down interface, leading to undefined behavior and
potential crashes.
Cancel pmsr_free_wk synchronously in cfg80211_pmsr_wdev_down()
before calling cfg80211_pmsr_process_abort(). This ensures any
pending or in-progress work is drained before interface teardown
proceeds, preventing the work from invoking the driver abort
callback after the interface is gone.
Fixes: 9bb7e0f24e7e ("cfg80211: add peer measurement with FTM initiator API")
Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com>
---
net/wireless/pmsr.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/wireless/pmsr.c b/net/wireless/pmsr.c
index b875b61c0b48..c2977a37add2 100644
--- a/net/wireless/pmsr.c
+++ b/net/wireless/pmsr.c
@@ -658,6 +658,7 @@ void cfg80211_pmsr_wdev_down(struct wireless_dev *wdev)
}
spin_unlock_bh(&wdev->pmsr_lock);
+ cancel_work_sync(&wdev->pmsr_free_wk);
if (found)
cfg80211_pmsr_process_abort(wdev);
--
2.34.1
^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH wireless-next v2 03/16] wifi: cfg80211: Add MAC address filter to remain_on_channel
2026-03-04 7:15 [PATCH wireless-next v2 00/16] wifi: Ranging support enhancements Peddolla Harshavardhan Reddy
2026-03-04 7:15 ` [PATCH wireless-next v2 01/16] wifi: cfg80211: Allow RSTA role without LMR request Peddolla Harshavardhan Reddy
2026-03-04 7:15 ` [PATCH wireless-next v2 02/16] wifi: cfg80211: cancel pmsr_free_wk in cfg80211_pmsr_wdev_down Peddolla Harshavardhan Reddy
@ 2026-03-04 7:15 ` Peddolla Harshavardhan Reddy
2026-03-04 7:15 ` [PATCH wireless-next v2 04/16] wifi: cfg80211/mac80211: Add NL80211_IFTYPE_PD for PD PASN and PMSR operations Peddolla Harshavardhan Reddy
` (12 subsequent siblings)
15 siblings, 0 replies; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-04 7:15 UTC (permalink / raw)
To: johannes; +Cc: linux-wireless, kavita.kavita
Currently the remain_on_channel operation does not support
filtering incoming frames by destination MAC address. This
prevents use cases such as PASN authentication in the
responder side that need to receive frames addressed to a
specific MAC during the off-channel period.
Add an rx_addr parameter to the remain_on_channel operation
callback and propagate it through the call chain from nl80211
to driver implementations. Introduce the extended feature
NL80211_EXT_FEATURE_ROC_ADDR_FILTER as a capability gate so
that cfg80211 rejects the request if the driver does not
advertise support for address filtering. Extract the address
from the NL80211_ATTR_MAC attribute when provided in the
netlink message and update the tracing infrastructure to
include the address in remain_on_channel trace events. The
rx_addr parameter is optional and can be NULL, maintaining
backward compatibility with existing drivers.
Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com>
---
drivers/net/wireless/ath/ath6kl/cfg80211.c | 3 ++-
drivers/net/wireless/ath/wil6210/cfg80211.c | 3 ++-
.../net/wireless/broadcom/brcm80211/brcmfmac/p2p.c | 4 +++-
.../net/wireless/broadcom/brcm80211/brcmfmac/p2p.h | 3 ++-
drivers/net/wireless/marvell/mwifiex/cfg80211.c | 3 ++-
drivers/net/wireless/microchip/wilc1000/cfg80211.c | 3 ++-
include/net/cfg80211.h | 2 +-
include/uapi/linux/nl80211.h | 11 ++++++++++-
net/mac80211/ieee80211_i.h | 3 ++-
net/mac80211/offchannel.c | 3 ++-
net/wireless/nl80211.c | 11 ++++++++++-
net/wireless/rdev-ops.h | 7 ++++---
net/wireless/trace.h | 12 ++++++++----
13 files changed, 50 insertions(+), 18 deletions(-)
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index 739a24a6ad67..cc0f2c45fc3a 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -1,6 +1,7 @@
/*
* Copyright (c) 2004-2011 Atheros Communications Inc.
* Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
@@ -3033,7 +3034,7 @@ static int ath6kl_remain_on_channel(struct wiphy *wiphy,
struct wireless_dev *wdev,
struct ieee80211_channel *chan,
unsigned int duration,
- u64 *cookie)
+ u64 *cookie, const u8 *rx_addr)
{
struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
struct ath6kl *ar = ath6kl_priv(vif->ndev);
diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c
index 3d6e5aad48b1..d6ef92cfcbaf 100644
--- a/drivers/net/wireless/ath/wil6210/cfg80211.c
+++ b/drivers/net/wireless/ath/wil6210/cfg80211.c
@@ -2,6 +2,7 @@
/*
* Copyright (c) 2012-2017 Qualcomm Atheros, Inc.
* Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
*/
#include <linux/etherdevice.h>
@@ -1734,7 +1735,7 @@ static int wil_remain_on_channel(struct wiphy *wiphy,
struct wireless_dev *wdev,
struct ieee80211_channel *chan,
unsigned int duration,
- u64 *cookie)
+ u64 *cookie, const u8 *rx_addr)
{
struct wil6210_priv *wil = wiphy_to_wil(wiphy);
int rc;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
index e1752a513c73..92c16a317328 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
@@ -970,10 +970,12 @@ brcmf_p2p_discover_listen(struct brcmf_p2p_info *p2p, u16 channel, u32 duration)
* @channel: channel to stay on.
* @duration: time in ms to remain on channel.
* @cookie: cookie.
+ * @rx_addr: Address to match against the destination of received frames
*/
int brcmf_p2p_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
struct ieee80211_channel *channel,
- unsigned int duration, u64 *cookie)
+ unsigned int duration, u64 *cookie,
+ const u8 *rx_addr)
{
struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
struct brcmf_p2p_info *p2p = &cfg->p2p;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.h
index d3137ebd7158..9f3f01ade2b7 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.h
@@ -157,7 +157,8 @@ int brcmf_p2p_scan_prep(struct wiphy *wiphy,
struct brcmf_cfg80211_vif *vif);
int brcmf_p2p_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
struct ieee80211_channel *channel,
- unsigned int duration, u64 *cookie);
+ unsigned int duration, u64 *cookie,
+ const u8 *rx_addr);
int brcmf_p2p_notify_listen_complete(struct brcmf_if *ifp,
const struct brcmf_event_msg *e,
void *data);
diff --git a/drivers/net/wireless/marvell/mwifiex/cfg80211.c b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
index c9a651bdf882..c9daf893472f 100644
--- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
@@ -304,7 +304,8 @@ static int
mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
struct wireless_dev *wdev,
struct ieee80211_channel *chan,
- unsigned int duration, u64 *cookie)
+ unsigned int duration, u64 *cookie,
+ const u8 *rx_addr)
{
struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
int ret;
diff --git a/drivers/net/wireless/microchip/wilc1000/cfg80211.c b/drivers/net/wireless/microchip/wilc1000/cfg80211.c
index 3a774cc44b26..6654fce4ded8 100644
--- a/drivers/net/wireless/microchip/wilc1000/cfg80211.c
+++ b/drivers/net/wireless/microchip/wilc1000/cfg80211.c
@@ -1100,7 +1100,8 @@ static void wilc_wfi_remain_on_channel_expired(struct wilc_vif *vif, u64 cookie)
static int remain_on_channel(struct wiphy *wiphy,
struct wireless_dev *wdev,
struct ieee80211_channel *chan,
- unsigned int duration, u64 *cookie)
+ unsigned int duration, u64 *cookie,
+ const u8 *rx_addr)
{
int ret = 0;
struct wilc_vif *vif = netdev_priv(wdev->netdev);
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index a54300b6899a..73cfe1a14c01 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -5082,7 +5082,7 @@ struct cfg80211_ops {
struct wireless_dev *wdev,
struct ieee80211_channel *chan,
unsigned int duration,
- u64 *cookie);
+ u64 *cookie, const u8 *rx_addr);
int (*cancel_remain_on_channel)(struct wiphy *wiphy,
struct wireless_dev *wdev,
u64 cookie);
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 8e4f9192d8b7..49f4704ce627 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -729,7 +729,9 @@
* to remain on the channel. This command is also used as an event to
* notify when the requested duration starts (it may take a while for the
* driver to schedule this time due to other concurrent needs for the
- * radio).
+ * radio). An optional attribute %NL80211_ATTR_MAC can be used to filter
+ * incoming frames during remain-on-channel, such that frames
+ * addressed to the specified destination MAC are reported.
* When called, this operation returns a cookie (%NL80211_ATTR_COOKIE)
* that will be included with any events pertaining to this request;
* the cookie is also used to cancel the request.
@@ -6828,6 +6830,12 @@ enum nl80211_feature_flags {
* (NL80211_CMD_AUTHENTICATE) in non-AP STA mode, as specified in
* "IEEE P802.11bi/D4.0, 12.16.5".
*
+ * @NL80211_EXT_FEATURE_ROC_ADDR_FILTER: Driver supports MAC address
+ * filtering during remain-on-channel. When %NL80211_ATTR_MAC is
+ * provided with %NL80211_CMD_REMAIN_ON_CHANNEL, the driver will
+ * forward frames with a matching MAC address to userspace during
+ * the off-channel period.
+ *
* @NUM_NL80211_EXT_FEATURES: number of extended features.
* @MAX_NL80211_EXT_FEATURES: highest extended feature index.
*/
@@ -6907,6 +6915,7 @@ enum nl80211_ext_feature_index {
NL80211_EXT_FEATURE_EPPKE,
NL80211_EXT_FEATURE_ASSOC_FRAME_ENCRYPTION,
NL80211_EXT_FEATURE_IEEE8021X_AUTH,
+ NL80211_EXT_FEATURE_ROC_ADDR_FILTER,
/* add new features before the definition below */
NUM_NL80211_EXT_FEATURES,
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index a4babf7624e5..c8e58877e2a3 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -2068,7 +2068,8 @@ void ieee80211_roc_purge(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata);
int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
struct ieee80211_channel *chan,
- unsigned int duration, u64 *cookie);
+ unsigned int duration, u64 *cookie,
+ const u8 *rx_addr);
int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
struct wireless_dev *wdev, u64 cookie);
int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c
index f60f6a58948b..5f398d38d1c9 100644
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -706,7 +706,8 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local,
int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
struct ieee80211_channel *chan,
- unsigned int duration, u64 *cookie)
+ unsigned int duration, u64 *cookie,
+ const u8 *rx_addr)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
struct ieee80211_local *local = sdata->local;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 2225f5d0b124..2d22fd405c39 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -13798,6 +13798,7 @@ static int nl80211_remain_on_channel(struct sk_buff *skb,
unsigned int link_id = nl80211_link_id(info->attrs);
struct wireless_dev *wdev = info->user_ptr[1];
struct cfg80211_chan_def chandef;
+ const u8 *rx_addr = NULL;
struct sk_buff *msg;
void *hdr;
u64 cookie;
@@ -13810,6 +13811,14 @@ static int nl80211_remain_on_channel(struct sk_buff *skb,
duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
+ if (info->attrs[NL80211_ATTR_MAC])
+ rx_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
+
+ if (rx_addr &&
+ !wiphy_ext_feature_isset(wdev->wiphy,
+ NL80211_EXT_FEATURE_ROC_ADDR_FILTER))
+ return -EOPNOTSUPP;
+
if (!rdev->ops->remain_on_channel ||
!(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
return -EOPNOTSUPP;
@@ -13857,7 +13866,7 @@ static int nl80211_remain_on_channel(struct sk_buff *skb,
}
err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
- duration, &cookie);
+ duration, &cookie, rx_addr);
if (err)
goto free_msg;
diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h
index 2bad8b60b7c9..3c0fff3cb5ac 100644
--- a/net/wireless/rdev-ops.h
+++ b/net/wireless/rdev-ops.h
@@ -736,12 +736,13 @@ static inline int
rdev_remain_on_channel(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev,
struct ieee80211_channel *chan,
- unsigned int duration, u64 *cookie)
+ unsigned int duration, u64 *cookie, const u8 *rx_addr)
{
int ret;
- trace_rdev_remain_on_channel(&rdev->wiphy, wdev, chan, duration);
+ trace_rdev_remain_on_channel(&rdev->wiphy, wdev, chan, duration,
+ rx_addr);
ret = rdev->ops->remain_on_channel(&rdev->wiphy, wdev, chan,
- duration, cookie);
+ duration, cookie, rx_addr);
trace_rdev_return_int_cookie(&rdev->wiphy, ret, *cookie);
return ret;
}
diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index af23f4fca90a..56718e250d31 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -2155,22 +2155,26 @@ DEFINE_EVENT(rdev_pmksa, rdev_del_pmksa,
TRACE_EVENT(rdev_remain_on_channel,
TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev,
struct ieee80211_channel *chan,
- unsigned int duration),
- TP_ARGS(wiphy, wdev, chan, duration),
+ unsigned int duration, const u8 *rx_addr),
+ TP_ARGS(wiphy, wdev, chan, duration, rx_addr),
TP_STRUCT__entry(
WIPHY_ENTRY
WDEV_ENTRY
CHAN_ENTRY
__field(unsigned int, duration)
+ MAC_ENTRY(rx_addr)
),
TP_fast_assign(
WIPHY_ASSIGN;
WDEV_ASSIGN;
CHAN_ASSIGN(chan);
__entry->duration = duration;
+ MAC_ASSIGN(rx_addr, rx_addr);
),
- TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT ", " CHAN_PR_FMT ", duration: %u",
- WIPHY_PR_ARG, WDEV_PR_ARG, CHAN_PR_ARG, __entry->duration)
+ TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT ", " CHAN_PR_FMT
+ ", duration: %u, %pM",
+ WIPHY_PR_ARG, WDEV_PR_ARG, CHAN_PR_ARG, __entry->duration,
+ __entry->rx_addr)
);
TRACE_EVENT(rdev_return_int_cookie,
--
2.34.1
^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH wireless-next v2 04/16] wifi: cfg80211/mac80211: Add NL80211_IFTYPE_PD for PD PASN and PMSR operations
2026-03-04 7:15 [PATCH wireless-next v2 00/16] wifi: Ranging support enhancements Peddolla Harshavardhan Reddy
` (2 preceding siblings ...)
2026-03-04 7:15 ` [PATCH wireless-next v2 03/16] wifi: cfg80211: Add MAC address filter to remain_on_channel Peddolla Harshavardhan Reddy
@ 2026-03-04 7:15 ` Peddolla Harshavardhan Reddy
2026-03-04 7:15 ` [PATCH wireless-next v2 05/16] wifi: cfg80211: add start/stop proximity detection commands Peddolla Harshavardhan Reddy
` (11 subsequent siblings)
15 siblings, 0 replies; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-04 7:15 UTC (permalink / raw)
To: johannes; +Cc: linux-wireless, kavita.kavita
Add a new wdev-only interface type NL80211_IFTYPE_PD to support
Proximity Detection (PD) operations such as PASN, key install and
peer measurement operations. This interface type operates without
a netdev, similar to P2P_DEVICE and NAN interfaces.
Implement support across cfg80211 and mac80211 layers with key
management gated by the NL80211_EXT_FEATURE_SECURE_RTT feature
flag, management frame registration and transmission capabilities,
and proper channel context handling where PD interfaces are
excluded from bandwidth calculations.
The PD interface provides isolated functionality for PD PASN
and PMSR without affecting existing network operations.
Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com>
---
include/uapi/linux/nl80211.h | 2 ++
net/mac80211/cfg.c | 2 ++
net/mac80211/chan.c | 2 ++
net/mac80211/iface.c | 6 +++++-
net/mac80211/offchannel.c | 1 +
net/mac80211/rx.c | 1 +
net/mac80211/util.c | 1 +
net/wireless/chan.c | 2 ++
net/wireless/core.c | 1 +
net/wireless/mlme.c | 1 +
net/wireless/nl80211.c | 27 +++++++++++++++++++++++++--
net/wireless/reg.c | 3 +++
net/wireless/util.c | 4 +++-
13 files changed, 49 insertions(+), 4 deletions(-)
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 49f4704ce627..b1f0e72ec953 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -3671,6 +3671,7 @@ enum nl80211_attrs {
* @NL80211_IFTYPE_OCB: Outside Context of a BSS
* This mode corresponds to the MIB variable dot11OCBActivated=true
* @NL80211_IFTYPE_NAN: NAN device interface type (not a netdev)
+ * @NL80211_IFTYPE_PD: PD device interface type (not a netdev)
* @NL80211_IFTYPE_MAX: highest interface type number currently defined
* @NUM_NL80211_IFTYPES: number of defined interface types
*
@@ -3692,6 +3693,7 @@ enum nl80211_iftype {
NL80211_IFTYPE_P2P_DEVICE,
NL80211_IFTYPE_OCB,
NL80211_IFTYPE_NAN,
+ NL80211_IFTYPE_PD,
/* keep last */
NUM_NL80211_IFTYPES,
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index ee64ac8e0f61..dac211f9a438 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -713,6 +713,7 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct wireless_dev *wdev,
case NL80211_IFTYPE_MONITOR:
case NL80211_IFTYPE_P2P_DEVICE:
case NL80211_IFTYPE_NAN:
+ case NL80211_IFTYPE_PD:
case NL80211_IFTYPE_UNSPECIFIED:
case NUM_NL80211_IFTYPES:
case NL80211_IFTYPE_P2P_CLIENT:
@@ -3183,6 +3184,7 @@ static int ieee80211_scan(struct wiphy *wiphy,
}
break;
case NL80211_IFTYPE_NAN:
+ case NL80211_IFTYPE_PD:
default:
return -EOPNOTSUPP;
}
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index 4447cf03c41b..00cbb13fb74b 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -473,6 +473,7 @@ ieee80211_get_chanctx_max_required_bw(struct ieee80211_local *local,
break;
case NL80211_IFTYPE_P2P_DEVICE:
case NL80211_IFTYPE_NAN:
+ case NL80211_IFTYPE_PD:
continue;
case NL80211_IFTYPE_MONITOR:
WARN_ON_ONCE(!ieee80211_hw_check(&local->hw,
@@ -1414,6 +1415,7 @@ ieee80211_link_chanctx_reservation_complete(struct ieee80211_link_data *link)
case NL80211_IFTYPE_P2P_GO:
case NL80211_IFTYPE_P2P_DEVICE:
case NL80211_IFTYPE_NAN:
+ case NL80211_IFTYPE_PD:
case NUM_NL80211_IFTYPES:
WARN_ON(1);
break;
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 676b2a43c9f2..b647c6394b28 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1369,6 +1369,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
case NL80211_IFTYPE_P2P_DEVICE:
case NL80211_IFTYPE_OCB:
case NL80211_IFTYPE_NAN:
+ case NL80211_IFTYPE_PD:
/* no special treatment */
break;
case NL80211_IFTYPE_UNSPECIFIED:
@@ -1489,7 +1490,8 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
FIF_PROBE_REQ);
if (sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE &&
- sdata->vif.type != NL80211_IFTYPE_NAN)
+ sdata->vif.type != NL80211_IFTYPE_NAN &&
+ sdata->vif.type != NL80211_IFTYPE_PD)
changed |= ieee80211_reset_erp_info(sdata);
ieee80211_link_info_change_notify(sdata, &sdata->deflink,
changed);
@@ -1504,6 +1506,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
break;
case NL80211_IFTYPE_P2P_DEVICE:
case NL80211_IFTYPE_NAN:
+ case NL80211_IFTYPE_PD:
break;
default:
/* not reached */
@@ -1935,6 +1938,7 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
break;
case NL80211_IFTYPE_AP_VLAN:
case NL80211_IFTYPE_P2P_DEVICE:
+ case NL80211_IFTYPE_PD:
sdata->vif.bss_conf.bssid = sdata->vif.addr;
break;
case NL80211_IFTYPE_UNSPECIFIED:
diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c
index 5f398d38d1c9..04c6031dc46b 100644
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -898,6 +898,7 @@ int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
need_offchan = true;
break;
case NL80211_IFTYPE_NAN:
+ case NL80211_IFTYPE_PD:
break;
default:
return -EOPNOTSUPP;
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 6c4b549444c6..ed3f7e3094ea 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -4621,6 +4621,7 @@ static bool ieee80211_accept_frame(struct ieee80211_rx_data *rx)
(ieee80211_is_public_action(hdr, skb->len) ||
(ieee80211_is_auth(hdr->frame_control) &&
ether_addr_equal(sdata->vif.addr, hdr->addr1)));
+ case NL80211_IFTYPE_PD:
default:
break;
}
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index b2e6c8b98381..2fa81fb57093 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -2121,6 +2121,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
case NL80211_IFTYPE_AP_VLAN:
case NL80211_IFTYPE_MONITOR:
case NL80211_IFTYPE_P2P_DEVICE:
+ case NL80211_IFTYPE_PD:
/* nothing to do */
break;
case NL80211_IFTYPE_UNSPECIFIED:
diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index d9d4e043bb39..31b621de3f9b 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -796,6 +796,7 @@ int cfg80211_chandef_dfs_required(struct wiphy *wiphy,
case NL80211_IFTYPE_MONITOR:
case NL80211_IFTYPE_AP_VLAN:
case NL80211_IFTYPE_P2P_DEVICE:
+ case NL80211_IFTYPE_PD:
break;
case NL80211_IFTYPE_WDS:
case NL80211_IFTYPE_UNSPECIFIED:
@@ -919,6 +920,7 @@ bool cfg80211_beaconing_iface_active(struct wireless_dev *wdev)
case NL80211_IFTYPE_P2P_DEVICE:
/* Can NAN type be considered as beaconing interface? */
case NL80211_IFTYPE_NAN:
+ case NL80211_IFTYPE_PD:
break;
case NL80211_IFTYPE_UNSPECIFIED:
case NL80211_IFTYPE_WDS:
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 23afc250bc10..67a603129c42 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -1420,6 +1420,7 @@ void cfg80211_leave(struct cfg80211_registered_device *rdev,
break;
case NL80211_IFTYPE_AP_VLAN:
case NL80211_IFTYPE_MONITOR:
+ case NL80211_IFTYPE_PD:
/* nothing to do */
break;
case NL80211_IFTYPE_UNSPECIFIED:
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 5cd86253a62e..6d13093ce449 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -939,6 +939,7 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
* public action frames
*/
case NL80211_IFTYPE_NAN:
+ case NL80211_IFTYPE_PD:
default:
err = -EOPNOTSUPP;
break;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 2d22fd405c39..293fdd07ac7a 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1711,6 +1711,11 @@ static int nl80211_key_allowed(struct wireless_dev *wdev)
NL80211_EXT_FEATURE_SECURE_NAN))
return 0;
return -EINVAL;
+ case NL80211_IFTYPE_PD:
+ if (wiphy_ext_feature_isset(wdev->wiphy,
+ NL80211_EXT_FEATURE_SECURE_RTT))
+ return 0;
+ return -EINVAL;
case NL80211_IFTYPE_UNSPECIFIED:
case NL80211_IFTYPE_OCB:
case NL80211_IFTYPE_MONITOR:
@@ -4739,6 +4744,7 @@ static int _nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
return -EOPNOTSUPP;
if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
+ type == NL80211_IFTYPE_PD ||
rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
info->attrs[NL80211_ATTR_MAC]) {
nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
@@ -4795,8 +4801,9 @@ static int _nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
break;
case NL80211_IFTYPE_NAN:
case NL80211_IFTYPE_P2P_DEVICE:
+ case NL80211_IFTYPE_PD:
/*
- * P2P Device and NAN do not have a netdev, so don't go
+ * P2P Device, NAN and PD do not have a netdev, so don't go
* through the netdev notifier and must be added here
*/
cfg80211_init_wdev(wdev);
@@ -10537,7 +10544,8 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
wiphy = &rdev->wiphy;
- if (wdev->iftype == NL80211_IFTYPE_NAN)
+ if (wdev->iftype == NL80211_IFTYPE_NAN ||
+ wdev->iftype == NL80211_IFTYPE_PD)
return -EOPNOTSUPP;
if (!rdev->ops->scan)
@@ -13954,6 +13962,11 @@ static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
WIPHY_NAN_FLAGS_USERSPACE_DE))
return -EOPNOTSUPP;
break;
+ case NL80211_IFTYPE_PD:
+ if (!wiphy_ext_feature_isset(wdev->wiphy,
+ NL80211_EXT_FEATURE_SECURE_RTT))
+ return -EOPNOTSUPP;
+ break;
default:
return -EOPNOTSUPP;
}
@@ -14017,6 +14030,11 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
WIPHY_NAN_FLAGS_USERSPACE_DE))
return -EOPNOTSUPP;
break;
+ case NL80211_IFTYPE_PD:
+ if (!wiphy_ext_feature_isset(wdev->wiphy,
+ NL80211_EXT_FEATURE_SECURE_RTT))
+ return -EOPNOTSUPP;
+ break;
default:
return -EOPNOTSUPP;
}
@@ -14142,6 +14160,11 @@ static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *in
NL80211_EXT_FEATURE_SECURE_NAN))
return -EOPNOTSUPP;
break;
+ case NL80211_IFTYPE_PD:
+ if (!wiphy_ext_feature_isset(wdev->wiphy,
+ NL80211_EXT_FEATURE_SECURE_RTT))
+ return -EOPNOTSUPP;
+ break;
default:
return -EOPNOTSUPP;
}
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 1c5c38d18feb..fb7eaee734b4 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -2411,6 +2411,9 @@ static bool reg_wdev_chan_valid(struct wiphy *wiphy, struct wireless_dev *wdev)
case NL80211_IFTYPE_NAN:
/* we have no info, but NAN is also pretty universal */
continue;
+ case NL80211_IFTYPE_PD:
+ /* we have no info, but PD is also pretty universal */
+ continue;
default:
/* others not implemented for now */
WARN_ON_ONCE(1);
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 0a0cea018fc5..d558c4bc00f0 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1186,7 +1186,8 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
/* cannot change into P2P device or NAN */
if (ntype == NL80211_IFTYPE_P2P_DEVICE ||
- ntype == NL80211_IFTYPE_NAN)
+ ntype == NL80211_IFTYPE_NAN ||
+ ntype == NL80211_IFTYPE_PD)
return -EOPNOTSUPP;
if (!rdev->ops->change_virtual_intf ||
@@ -1250,6 +1251,7 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
case NL80211_IFTYPE_P2P_DEVICE:
case NL80211_IFTYPE_WDS:
case NL80211_IFTYPE_NAN:
+ case NL80211_IFTYPE_PD:
WARN_ON(1);
break;
}
--
2.34.1
^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH wireless-next v2 05/16] wifi: cfg80211: add start/stop proximity detection commands
2026-03-04 7:15 [PATCH wireless-next v2 00/16] wifi: Ranging support enhancements Peddolla Harshavardhan Reddy
` (3 preceding siblings ...)
2026-03-04 7:15 ` [PATCH wireless-next v2 04/16] wifi: cfg80211/mac80211: Add NL80211_IFTYPE_PD for PD PASN and PMSR operations Peddolla Harshavardhan Reddy
@ 2026-03-04 7:15 ` Peddolla Harshavardhan Reddy
2026-03-04 11:47 ` Johannes Berg
2026-03-04 7:15 ` [PATCH wireless-next v2 06/16] wifi: cfg80211: add proximity detection capabilities to PMSR Peddolla Harshavardhan Reddy
` (10 subsequent siblings)
15 siblings, 1 reply; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-04 7:15 UTC (permalink / raw)
To: johannes; +Cc: linux-wireless, kavita.kavita
Currently, the proximity detection (PD) interface type has no
start/stop commands defined, preventing user space from
controlling PD operations through the nl80211 interface.
Add NL80211_CMD_START_PD and NL80211_CMD_STOP_PD commands to
allow user space to start and stop a PD interface. Add the
corresponding start_pd and stop_pd operations to cfg80211_ops
and ieee80211_ops, along with nl80211 command handlers, rdev
wrappers, and tracing support. Validate that drivers advertising
PD interface support implement the required operations. Handle
PD interface teardown during device unregistration and when
the interface leaves the network.
Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com>
---
include/net/cfg80211.h | 5 ++++
include/uapi/linux/nl80211.h | 9 ++++++
net/wireless/core.c | 32 ++++++++++++++++++++-
net/wireless/core.h | 2 ++
net/wireless/nl80211.c | 54 ++++++++++++++++++++++++++++++++++++
net/wireless/rdev-ops.h | 19 +++++++++++++
net/wireless/trace.h | 20 +++++++++++++
7 files changed, 140 insertions(+), 1 deletion(-)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 73cfe1a14c01..099a2ff9af58 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4900,6 +4900,9 @@ struct mgmt_frame_regs {
* links by calling cfg80211_mlo_reconf_add_done(). When calling
* cfg80211_mlo_reconf_add_done() the bss pointer must be given for each
* link for which MLO reconfiguration 'add' operation was requested.
+ *
+ * @start_pd: Start the PD interface.
+ * @stop_pd: Stop the PD interface.
*/
struct cfg80211_ops {
int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
@@ -5271,6 +5274,8 @@ struct cfg80211_ops {
struct cfg80211_ml_reconf_req *req);
int (*set_epcs)(struct wiphy *wiphy, struct net_device *dev,
bool val);
+ int (*start_pd)(struct wiphy *wiphy, struct wireless_dev *wdev);
+ void (*stop_pd)(struct wiphy *wiphy, struct wireless_dev *wdev);
};
/*
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index b1f0e72ec953..55a882535e2b 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -1369,6 +1369,12 @@
* %NL80211_ATTR_INCUMBENT_SIGNAL_INTERFERENCE_BITMAP. The current channel
* definition is also sent.
*
+ * @NL80211_CMD_START_PD: Start PD operation, identified by its
+ * %NL80211_ATTR_WDEV interface. This interface must have been previously
+ * created with %NL80211_CMD_NEW_INTERFACE.
+ * @NL80211_CMD_STOP_PD: Stop the PD operation, identified by
+ * its %NL80211_ATTR_WDEV interface.
+ *
* @NL80211_CMD_MAX: highest used command number
* @__NL80211_CMD_AFTER_LAST: internal use
*/
@@ -1634,6 +1640,9 @@ enum nl80211_commands {
NL80211_CMD_INCUMBENT_SIGNAL_DETECT,
+ NL80211_CMD_START_PD,
+ NL80211_CMD_STOP_PD,
+
/* add new commands above here */
/* used to define NL80211_CMD_MAX below */
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 67a603129c42..7bab8c4fb873 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -270,6 +270,25 @@ void cfg80211_stop_nan(struct cfg80211_registered_device *rdev,
rdev->opencount--;
}
+void cfg80211_stop_pd(struct cfg80211_registered_device *rdev,
+ struct wireless_dev *wdev)
+{
+ lockdep_assert_held(&rdev->wiphy.mtx);
+
+ if (WARN_ON(wdev->iftype != NL80211_IFTYPE_PD))
+ return;
+
+ if (!wdev_running(wdev))
+ return;
+
+ cfg80211_pmsr_wdev_down(wdev);
+
+ rdev_stop_pd(rdev, wdev);
+ wdev->is_running = false;
+
+ rdev->opencount--;
+}
+
void cfg80211_shutdown_all_interfaces(struct wiphy *wiphy)
{
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
@@ -294,6 +313,9 @@ void cfg80211_shutdown_all_interfaces(struct wiphy *wiphy)
case NL80211_IFTYPE_NAN:
cfg80211_stop_nan(rdev, wdev);
break;
+ case NL80211_IFTYPE_PD:
+ cfg80211_stop_pd(rdev, wdev);
+ break;
default:
break;
}
@@ -760,6 +782,9 @@ int wiphy_register(struct wiphy *wiphy)
!rdev->ops->add_nan_func || !rdev->ops->del_nan_func ||
!(wiphy->nan_supported_bands & BIT(NL80211_BAND_2GHZ)))))
return -EINVAL;
+ if (WARN_ON((wiphy->interface_modes & BIT(NL80211_IFTYPE_PD)) &&
+ (!rdev->ops->start_pd || !rdev->ops->stop_pd)))
+ return -EINVAL;
if (WARN_ON(wiphy->interface_modes & BIT(NL80211_IFTYPE_WDS)))
return -EINVAL;
@@ -1309,6 +1334,9 @@ static void _cfg80211_unregister_wdev(struct wireless_dev *wdev,
case NL80211_IFTYPE_NAN:
cfg80211_stop_nan(rdev, wdev);
break;
+ case NL80211_IFTYPE_PD:
+ cfg80211_stop_pd(rdev, wdev);
+ break;
default:
break;
}
@@ -1418,9 +1446,11 @@ void cfg80211_leave(struct cfg80211_registered_device *rdev,
case NL80211_IFTYPE_NAN:
cfg80211_stop_nan(rdev, wdev);
break;
+ case NL80211_IFTYPE_PD:
+ cfg80211_stop_pd(rdev, wdev);
+ break;
case NL80211_IFTYPE_AP_VLAN:
case NL80211_IFTYPE_MONITOR:
- case NL80211_IFTYPE_PD:
/* nothing to do */
break;
case NL80211_IFTYPE_UNSPECIFIED:
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 6cace846d7a3..f631b6997988 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -550,6 +550,8 @@ void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
void cfg80211_stop_nan(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev);
+void cfg80211_stop_pd(struct cfg80211_registered_device *rdev,
+ struct wireless_dev *wdev);
struct cfg80211_internal_bss *
cfg80211_bss_update(struct cfg80211_registered_device *rdev,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 293fdd07ac7a..0ae96063c032 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -16296,6 +16296,46 @@ static int nl80211_nan_change_config(struct sk_buff *skb,
return rdev_nan_change_conf(rdev, wdev, &conf, changed);
}
+static int nl80211_start_pd(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct wireless_dev *wdev = info->user_ptr[1];
+ int err;
+
+ if (wdev->iftype != NL80211_IFTYPE_PD)
+ return -EOPNOTSUPP;
+
+ if (wdev_running(wdev))
+ return -EEXIST;
+
+ if (rfkill_blocked(rdev->wiphy.rfkill))
+ return -ERFKILL;
+
+ if (!rdev->ops->start_pd)
+ return -EOPNOTSUPP;
+
+ err = rdev_start_pd(rdev, wdev);
+ if (err)
+ return err;
+ wdev->is_running = true;
+ rdev->opencount++;
+
+ return 0;
+}
+
+static int nl80211_stop_pd(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct wireless_dev *wdev = info->user_ptr[1];
+
+ if (wdev->iftype != NL80211_IFTYPE_PD)
+ return -EOPNOTSUPP;
+
+ cfg80211_stop_pd(rdev, wdev);
+
+ return 0;
+}
+
void cfg80211_nan_match(struct wireless_dev *wdev,
struct cfg80211_nan_match_params *match, gfp_t gfp)
{
@@ -18977,6 +19017,20 @@ static const struct genl_small_ops nl80211_small_ops[] = {
.flags = GENL_ADMIN_PERM,
.internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP),
},
+ {
+ .cmd = NL80211_CMD_START_PD,
+ .doit = nl80211_start_pd,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV |
+ NL80211_FLAG_NEED_RTNL),
+ },
+ {
+ .cmd = NL80211_CMD_STOP_PD,
+ .doit = nl80211_stop_pd,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = IFLAGS(NL80211_FLAG_NEED_WDEV_UP |
+ NL80211_FLAG_NEED_RTNL),
+ },
{
.cmd = NL80211_CMD_SET_MCAST_RATE,
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h
index 3c0fff3cb5ac..921566fa802d 100644
--- a/net/wireless/rdev-ops.h
+++ b/net/wireless/rdev-ops.h
@@ -1061,6 +1061,25 @@ rdev_nan_change_conf(struct cfg80211_registered_device *rdev,
return ret;
}
+static inline int rdev_start_pd(struct cfg80211_registered_device *rdev,
+ struct wireless_dev *wdev)
+{
+ int ret;
+
+ trace_rdev_start_pd(&rdev->wiphy, wdev);
+ ret = rdev->ops->start_pd(&rdev->wiphy, wdev);
+ trace_rdev_return_int(&rdev->wiphy, ret);
+ return ret;
+}
+
+static inline void rdev_stop_pd(struct cfg80211_registered_device *rdev,
+ struct wireless_dev *wdev)
+{
+ trace_rdev_stop_pd(&rdev->wiphy, wdev);
+ rdev->ops->stop_pd(&rdev->wiphy, wdev);
+ trace_rdev_return_void(&rdev->wiphy);
+}
+
static inline int rdev_set_mac_acl(struct cfg80211_registered_device *rdev,
struct net_device *dev,
struct cfg80211_acl_data *params)
diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index 56718e250d31..978c019c01b4 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -2375,6 +2375,26 @@ DEFINE_EVENT(wiphy_wdev_evt, rdev_stop_nan,
TP_ARGS(wiphy, wdev)
);
+TRACE_EVENT(rdev_start_pd,
+ TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev),
+ TP_ARGS(wiphy, wdev),
+ TP_STRUCT__entry(
+ WIPHY_ENTRY
+ WDEV_ENTRY
+ ),
+ TP_fast_assign(
+ WIPHY_ASSIGN;
+ WDEV_ASSIGN;
+ ),
+ TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT,
+ WIPHY_PR_ARG, WDEV_PR_ARG)
+);
+
+DEFINE_EVENT(wiphy_wdev_evt, rdev_stop_pd,
+ TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev),
+ TP_ARGS(wiphy, wdev)
+);
+
TRACE_EVENT(rdev_add_nan_func,
TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev,
const struct cfg80211_nan_func *func),
--
2.34.1
^ permalink raw reply related [flat|nested] 27+ messages in thread* Re: [PATCH wireless-next v2 05/16] wifi: cfg80211: add start/stop proximity detection commands
2026-03-04 7:15 ` [PATCH wireless-next v2 05/16] wifi: cfg80211: add start/stop proximity detection commands Peddolla Harshavardhan Reddy
@ 2026-03-04 11:47 ` Johannes Berg
2026-03-05 15:33 ` Peddolla Harshavardhan Reddy
0 siblings, 1 reply; 27+ messages in thread
From: Johannes Berg @ 2026-03-04 11:47 UTC (permalink / raw)
To: Peddolla Harshavardhan Reddy; +Cc: linux-wireless, kavita.kavita
On Wed, 2026-03-04 at 12:45 +0530, Peddolla Harshavardhan Reddy wrote:
>
>
> +TRACE_EVENT(rdev_start_pd,
> + TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev),
> + TP_ARGS(wiphy, wdev),
> + TP_STRUCT__entry(
> + WIPHY_ENTRY
> + WDEV_ENTRY
> + ),
> + TP_fast_assign(
> + WIPHY_ASSIGN;
> + WDEV_ASSIGN;
> + ),
> + TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT,
> + WIPHY_PR_ARG, WDEV_PR_ARG)
> +);
Why spell this out completely?
> +DEFINE_EVENT(wiphy_wdev_evt, rdev_stop_pd,
> + TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev),
> + TP_ARGS(wiphy, wdev)
> +);
Clearly you knew there was a class?
johannes
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: [PATCH wireless-next v2 05/16] wifi: cfg80211: add start/stop proximity detection commands
2026-03-04 11:47 ` Johannes Berg
@ 2026-03-05 15:33 ` Peddolla Harshavardhan Reddy
0 siblings, 0 replies; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-05 15:33 UTC (permalink / raw)
To: Johannes Berg; +Cc: linux-wireless, kavita.kavita
On 04-Mar-26 5:17 PM, Johannes Berg wrote:
> On Wed, 2026-03-04 at 12:45 +0530, Peddolla Harshavardhan Reddy wrote:
>>
>> +TRACE_EVENT(rdev_start_pd,
>> + TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev),
>> + TP_ARGS(wiphy, wdev),
>> + TP_STRUCT__entry(
>> + WIPHY_ENTRY
>> + WDEV_ENTRY
>> + ),
>> + TP_fast_assign(
>> + WIPHY_ASSIGN;
>> + WDEV_ASSIGN;
>> + ),
>> + TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT,
>> + WIPHY_PR_ARG, WDEV_PR_ARG)
>> +);
> Why spell this out completely?
>
>> +DEFINE_EVENT(wiphy_wdev_evt, rdev_stop_pd,
>> + TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev),
>> + TP_ARGS(wiphy, wdev)
>> +);
> Clearly you knew there was a class?
>
> johannes
Sure, will address in the next version. Thanks.
^ permalink raw reply [flat|nested] 27+ messages in thread
* [PATCH wireless-next v2 06/16] wifi: cfg80211: add proximity detection capabilities to PMSR
2026-03-04 7:15 [PATCH wireless-next v2 00/16] wifi: Ranging support enhancements Peddolla Harshavardhan Reddy
` (4 preceding siblings ...)
2026-03-04 7:15 ` [PATCH wireless-next v2 05/16] wifi: cfg80211: add start/stop proximity detection commands Peddolla Harshavardhan Reddy
@ 2026-03-04 7:15 ` Peddolla Harshavardhan Reddy
2026-03-04 11:50 ` Johannes Berg
2026-03-04 7:15 ` [PATCH wireless-next v2 07/16] wifi: cfg80211: add continuous ranging and PD request support Peddolla Harshavardhan Reddy
` (9 subsequent siblings)
15 siblings, 1 reply; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-04 7:15 UTC (permalink / raw)
To: johannes; +Cc: linux-wireless, kavita.kavita
Introduce Proximity Detection (PD) capabilities in Peer Measurement
Service (PMSR) as defined in the Wi-Fi Alliance specification
"Proximity Ranging (PR) Implementation Consideration Draft 1.9 Rev 1
section 3.3". This enables devices to advertise PD support and
concurrent ISTA/RSTA operation for simultaneous initiator and
responder roles.
Extend FTM capabilities to support PASN negotiation and device timing
constraints. Add antenna configuration for PR Element during PASN
negotiation as per the specification. Add ranging interval limits to
advertise device timing capabilities for EDCA and NTB-based ranging.
Add EDCA-based responder support to indicate if the device can operate
as FTM responder for EDCA-based ranging. These capabilities allow
proper negotiation and validation of PD sessions between peers.
Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com>
---
include/net/cfg80211.h | 28 ++++++++++++++++++++++++++--
include/uapi/linux/nl80211.h | 29 +++++++++++++++++++++++++++++
net/wireless/nl80211.c | 32 ++++++++++++++++++++++++++++++++
net/wireless/pmsr.c | 3 ++-
4 files changed, 89 insertions(+), 3 deletions(-)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 099a2ff9af58..62a2139b2f37 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -5692,6 +5692,13 @@ cfg80211_get_iftype_ext_capa(struct wiphy *wiphy, enum nl80211_iftype type);
* @max_peers: maximum number of peers in a single measurement
* @report_ap_tsf: can report assoc AP's TSF for radio resource measurement
* @randomize_mac_addr: can randomize MAC address for measurement
+ * @pd_support: supports peer-to-peer ranging as mentioned in the specification
+ * "PR Implementation Consideration Draft 1.9 rev 1" where PD stands for
+ * proximity detection
+ * @pd_concurrent_ista_rsta_support: As the peer measurement request can be a
+ * multi-peer request this will indicate if the device can act
+ * simultaneously as initiator and a responder. Only valid if @pd_support
+ * is set.
* @ftm: FTM measurement data
* @ftm.supported: FTM measurement is supported
* @ftm.asap: ASAP-mode is supported
@@ -5718,12 +5725,24 @@ cfg80211_get_iftype_ext_capa(struct wiphy *wiphy, enum nl80211_iftype type);
* (0 means unknown)
* @ftm.max_total_ltf_rx: maximum total number of LTFs that can be received
* (0 means unknown)
+ * @ftm.max_no_of_tx_antennas: maximum number of transmit antennas supported for
+ * ranging
+ * @ftm.max_no_of_rx_antennas: maximum number of receive antennas supported for
+ * ranging
+ * @ftm.min_allowed_ranging_interval_edca: Minimum EDCA ranging
+ * interval supported by the device in milli seconds. (0 means unknown)
+ * @ftm.min_allowed_ranging_interval_ntb: Minimum NTB ranging
+ * interval supported by the device in milli seconds. (0 means unknown)
* @ftm.support_rsta: supports operating as RSTA in PMSR FTM request
+ * @ftm.support_edca_responder: supports operating as FTM responder in PMSR FTM
+ * request for EDCA-based ranging
*/
struct cfg80211_pmsr_capabilities {
unsigned int max_peers;
u8 report_ap_tsf:1,
- randomize_mac_addr:1;
+ randomize_mac_addr:1,
+ pd_support:1,
+ pd_concurrent_ista_rsta_support:1;
struct {
u32 preambles;
@@ -5744,7 +5763,12 @@ struct cfg80211_pmsr_capabilities {
u8 max_rx_sts;
u8 max_total_ltf_tx;
u8 max_total_ltf_rx;
- u8 support_rsta:1;
+ u32 max_no_of_tx_antennas;
+ u32 max_no_of_rx_antennas;
+ u32 min_allowed_ranging_interval_edca;
+ u32 min_allowed_ranging_interval_ntb;
+ u8 support_rsta:1,
+ support_edca_responder:1;
} ftm;
};
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 55a882535e2b..59e8ba9c37c4 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -7829,6 +7829,15 @@ enum nl80211_peer_measurement_peer_attrs {
* meaningless, just a list of peers to measure with, with the
* sub-attributes taken from
* &enum nl80211_peer_measurement_peer_attrs.
+ * @NL80211_PMSR_ATTR_PD_SUPPORT: flag attribute in capability indicating
+ * that the device supports peer-to-peer ranging as mentioned in the
+ * specification "PR Implementation Consideration Draft 1.9 rev 1" where
+ * PD stands for proximity detection
+ * @NL80211_PMSR_ATTR_PD_CONCURRENT_ISTA_RSTA_SUPPORT: flag attribute in
+ * capability indicating that as the peer measurement request can be a
+ * multi-peer request, the device can act simultaneously as initiator and
+ * a responder, where the multiple requests are being processed
+ * simultaneously
*
* @NUM_NL80211_PMSR_ATTR: internal
* @NL80211_PMSR_ATTR_MAX: highest attribute number
@@ -7841,6 +7850,8 @@ enum nl80211_peer_measurement_attrs {
NL80211_PMSR_ATTR_RANDOMIZE_MAC_ADDR,
NL80211_PMSR_ATTR_TYPE_CAPA,
NL80211_PMSR_ATTR_PEERS,
+ NL80211_PMSR_ATTR_PD_SUPPORT,
+ NL80211_PMSR_ATTR_PD_CONCURRENT_ISTA_RSTA_SUPPORT,
/* keep last */
NUM_NL80211_PMSR_ATTR,
@@ -7899,6 +7910,19 @@ enum nl80211_peer_measurement_attrs {
* This limits the allowed combinations of LTF repetitions and STS.
* @NL80211_PMSR_FTM_CAPA_ATTR_RSTA_SUPPORT: flag attribute indicating the
* device supports operating as the RSTA in PMSR FTM request
+ * @NL80211_PMSR_FTM_CAPA_ATTR_EDCA_BASED_RESPONDER: flag attribute indicating
+ * the device supports operating as the Responder in PMSR FTM request for
+ * EDCA-based ranging.
+ * @NL80211_PMSR_FTM_CAPA_ATTR_MAX_NUM_TX_ANTENNAS: u32 attribute indicating
+ * the maximum number of transmit antennas supported for ranging
+ * @NL80211_PMSR_FTM_CAPA_ATTR_MAX_NUM_RX_ANTENNAS: u32 attribute indicating
+ * the maximum number of receive antennas supported for ranging
+ * @NL80211_PMSR_FTM_CAPA_ATTR_MIN_INTERVAL_EDCA: u32 attribute indicating
+ * the minimum EDCA ranging interval supported by the device
+ * in milli seconds. (0 means unknown)
+ * @NL80211_PMSR_FTM_CAPA_ATTR_MIN_INTERVAL_NTB: u32 attribute indicating
+ * the minimum NTB ranging interval supported by the device
+ * in milli seconds. (0 means unknown)
*
* @NUM_NL80211_PMSR_FTM_CAPA_ATTR: internal
* @NL80211_PMSR_FTM_CAPA_ATTR_MAX: highest attribute number
@@ -7924,6 +7948,11 @@ enum nl80211_peer_measurement_ftm_capa {
NL80211_PMSR_FTM_CAPA_ATTR_MAX_TOTAL_LTF_TX,
NL80211_PMSR_FTM_CAPA_ATTR_MAX_TOTAL_LTF_RX,
NL80211_PMSR_FTM_CAPA_ATTR_RSTA_SUPPORT,
+ NL80211_PMSR_FTM_CAPA_ATTR_EDCA_BASED_RESPONDER,
+ NL80211_PMSR_FTM_CAPA_ATTR_MAX_NUM_TX_ANTENNAS,
+ NL80211_PMSR_FTM_CAPA_ATTR_MAX_NUM_RX_ANTENNAS,
+ NL80211_PMSR_FTM_CAPA_ATTR_MIN_INTERVAL_EDCA,
+ NL80211_PMSR_FTM_CAPA_ATTR_MIN_INTERVAL_NTB,
/* keep last */
NUM_NL80211_PMSR_FTM_CAPA_ATTR,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 0ae96063c032..77447f63d112 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -404,6 +404,10 @@ nl80211_pmsr_attr_policy[NL80211_PMSR_ATTR_MAX + 1] = {
[NL80211_PMSR_ATTR_TYPE_CAPA] = { .type = NLA_REJECT },
[NL80211_PMSR_ATTR_PEERS] =
NLA_POLICY_NESTED_ARRAY(nl80211_pmsr_peer_attr_policy),
+ [NL80211_PMSR_ATTR_PD_SUPPORT] = { .type = NLA_REJECT },
+ [NL80211_PMSR_ATTR_PD_CONCURRENT_ISTA_RSTA_SUPPORT] = {
+ .type = NLA_REJECT
+ },
};
static const struct nla_policy
@@ -2375,6 +2379,25 @@ nl80211_send_pmsr_ftm_capa(const struct cfg80211_pmsr_capabilities *cap,
if (cap->ftm.support_rsta &&
nla_put_flag(msg, NL80211_PMSR_FTM_CAPA_ATTR_RSTA_SUPPORT))
return -ENOBUFS;
+ if (cap->ftm.support_edca_responder &&
+ nla_put_flag(msg, NL80211_PMSR_FTM_CAPA_ATTR_EDCA_BASED_RESPONDER))
+ return -ENOBUFS;
+ if (cap->ftm.max_no_of_tx_antennas &&
+ nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_MAX_NUM_TX_ANTENNAS,
+ cap->ftm.max_no_of_tx_antennas))
+ return -ENOBUFS;
+ if (cap->ftm.max_no_of_rx_antennas &&
+ nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_MAX_NUM_RX_ANTENNAS,
+ cap->ftm.max_no_of_rx_antennas))
+ return -ENOBUFS;
+ if (cap->ftm.min_allowed_ranging_interval_edca &&
+ nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_MIN_INTERVAL_EDCA,
+ cap->ftm.min_allowed_ranging_interval_edca))
+ return -ENOBUFS;
+ if (cap->ftm.min_allowed_ranging_interval_ntb &&
+ nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_MIN_INTERVAL_NTB,
+ cap->ftm.min_allowed_ranging_interval_ntb))
+ return -ENOBUFS;
nla_nest_end(msg, ftm);
return 0;
@@ -2409,6 +2432,15 @@ static int nl80211_send_pmsr_capa(struct cfg80211_registered_device *rdev,
nla_put_flag(msg, NL80211_PMSR_ATTR_RANDOMIZE_MAC_ADDR))
return -ENOBUFS;
+ if (cap->pd_support) {
+ if (nla_put_flag(msg, NL80211_PMSR_ATTR_PD_SUPPORT))
+ return -ENOBUFS;
+
+ if (cap->pd_concurrent_ista_rsta_support &&
+ nla_put_flag(msg,
+ NL80211_PMSR_ATTR_PD_CONCURRENT_ISTA_RSTA_SUPPORT))
+ return -ENOBUFS;
+ }
caps = nla_nest_start_noflag(msg, NL80211_PMSR_ATTR_TYPE_CAPA);
if (!caps)
return -ENOBUFS;
diff --git a/net/wireless/pmsr.c b/net/wireless/pmsr.c
index c2977a37add2..17f0b1c97d58 100644
--- a/net/wireless/pmsr.c
+++ b/net/wireless/pmsr.c
@@ -188,7 +188,8 @@ static int pmsr_parse_ftm(struct cfg80211_registered_device *rdev,
}
out->ftm.rsta = !!tb[NL80211_PMSR_FTM_REQ_ATTR_RSTA];
- if (out->ftm.rsta && !capa->ftm.support_rsta) {
+ if (out->ftm.rsta && !capa->ftm.support_rsta &&
+ !capa->ftm.support_edca_responder) {
NL_SET_ERR_MSG_ATTR(info->extack,
tb[NL80211_PMSR_FTM_REQ_ATTR_RSTA],
"FTM: RSTA not supported by device");
--
2.34.1
^ permalink raw reply related [flat|nested] 27+ messages in thread* Re: [PATCH wireless-next v2 06/16] wifi: cfg80211: add proximity detection capabilities to PMSR
2026-03-04 7:15 ` [PATCH wireless-next v2 06/16] wifi: cfg80211: add proximity detection capabilities to PMSR Peddolla Harshavardhan Reddy
@ 2026-03-04 11:50 ` Johannes Berg
2026-03-05 15:34 ` Peddolla Harshavardhan Reddy
0 siblings, 1 reply; 27+ messages in thread
From: Johannes Berg @ 2026-03-04 11:50 UTC (permalink / raw)
To: Peddolla Harshavardhan Reddy; +Cc: linux-wireless, kavita.kavita
On Wed, 2026-03-04 at 12:45 +0530, Peddolla Harshavardhan Reddy wrote:
>
> +++ b/net/wireless/nl80211.c
> @@ -404,6 +404,10 @@ nl80211_pmsr_attr_policy[NL80211_PMSR_ATTR_MAX + 1] = {
> [NL80211_PMSR_ATTR_TYPE_CAPA] = { .type = NLA_REJECT },
> [NL80211_PMSR_ATTR_PEERS] =
> NLA_POLICY_NESTED_ARRAY(nl80211_pmsr_peer_attr_policy),
> + [NL80211_PMSR_ATTR_PD_SUPPORT] = { .type = NLA_REJECT },
> + [NL80211_PMSR_ATTR_PD_CONCURRENT_ISTA_RSTA_SUPPORT] = {
> + .type = NLA_REJECT
> + },
Probably should use something like the global policy, with
[0] = { .strict_start_type = NL80211_PMSR_ATTR_PD_SUPPORT },
instead of listing them? That way, unlisted ones become reject
automatically, I think. It's been a while ...
johannes
^ permalink raw reply [flat|nested] 27+ messages in thread* Re: [PATCH wireless-next v2 06/16] wifi: cfg80211: add proximity detection capabilities to PMSR
2026-03-04 11:50 ` Johannes Berg
@ 2026-03-05 15:34 ` Peddolla Harshavardhan Reddy
0 siblings, 0 replies; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-05 15:34 UTC (permalink / raw)
To: Johannes Berg; +Cc: linux-wireless, kavita.kavita
On 04-Mar-26 5:20 PM, Johannes Berg wrote:
> On Wed, 2026-03-04 at 12:45 +0530, Peddolla Harshavardhan Reddy wrote:
>> +++ b/net/wireless/nl80211.c
>> @@ -404,6 +404,10 @@ nl80211_pmsr_attr_policy[NL80211_PMSR_ATTR_MAX + 1] = {
>> [NL80211_PMSR_ATTR_TYPE_CAPA] = { .type = NLA_REJECT },
>> [NL80211_PMSR_ATTR_PEERS] =
>> NLA_POLICY_NESTED_ARRAY(nl80211_pmsr_peer_attr_policy),
>> + [NL80211_PMSR_ATTR_PD_SUPPORT] = { .type = NLA_REJECT },
>> + [NL80211_PMSR_ATTR_PD_CONCURRENT_ISTA_RSTA_SUPPORT] = {
>> + .type = NLA_REJECT
>> + },
>
> Probably should use something like the global policy, with
> [0] = { .strict_start_type = NL80211_PMSR_ATTR_PD_SUPPORT },
>
> instead of listing them? That way, unlisted ones become reject
> automatically, I think. It's been a while ...
>
> johannes
Sure, will follow this format. Thanks.
^ permalink raw reply [flat|nested] 27+ messages in thread
* [PATCH wireless-next v2 07/16] wifi: cfg80211: add continuous ranging and PD request support
2026-03-04 7:15 [PATCH wireless-next v2 00/16] wifi: Ranging support enhancements Peddolla Harshavardhan Reddy
` (5 preceding siblings ...)
2026-03-04 7:15 ` [PATCH wireless-next v2 06/16] wifi: cfg80211: add proximity detection capabilities to PMSR Peddolla Harshavardhan Reddy
@ 2026-03-04 7:15 ` Peddolla Harshavardhan Reddy
2026-03-04 11:52 ` Johannes Berg
2026-03-04 7:15 ` [PATCH wireless-next v2 08/16] wifi: cfg80211: extend PMSR FTM response for proximity ranging Peddolla Harshavardhan Reddy
` (8 subsequent siblings)
15 siblings, 1 reply; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-04 7:15 UTC (permalink / raw)
To: johannes; +Cc: linux-wireless, kavita.kavita
Proximity detection (PD) applications require sustained measurement
sessions without repeated FTM negotiation overhead. Currently, each
ranging session requires separate negotiation.
Enable NTB continuous ranging with configurable timing and
measurement parameters as per the specification "Proximity Ranging
(PR) Implementation Consideration Draft 1.9 Rev 1, section 5.3".
Add PD capability validation to support proximity detection sessions.
Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com>
---
include/net/cfg80211.h | 22 +++++++++++++++++-
include/uapi/linux/nl80211.h | 26 ++++++++++++++++++++++
net/wireless/nl80211.c | 10 +++++++++
net/wireless/pmsr.c | 43 +++++++++++++++++++++++++++++++++---
4 files changed, 97 insertions(+), 4 deletions(-)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 62a2139b2f37..b66300497312 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4369,6 +4369,19 @@ struct cfg80211_pmsr_result {
* @bss_color: the bss color of the responder. Optional. Set to zero to
* indicate the driver should set the BSS color. Only valid if
* @non_trigger_based or @trigger_based is set.
+ * @min_time_between_measurements: minimum time between two consecutive range
+ * measurements in units of 100 micro seconds, applicable for
+ * non trigger based ranging. Only valid if @non_trigger_based is set.
+ * @max_time_between_measurements: maximum time between two consecutive range
+ * measurements in units of 10 milli seconds, to avoid FTM negotiation
+ * applicable for non trigger based ranging. Only valid
+ * if @non_trigger_based is set.
+ * @availability_window: duration of the availability window (AW) in units of
+ * 1 millisecond (0-255 ms). Only valid if @non_trigger_based is set.
+ * @nominal_time: Nominal duration between adjacent availability windows
+ * in units of milli seconds. Only valid if @non_trigger_based is set.
+ * @measurements_per_aw: number of measurement attempts per availability window
+ * with a maximum value of 4. Only valid if @non_trigger_based is set.
*
* See also nl80211 for the respective attribute documentation.
*/
@@ -4388,6 +4401,11 @@ struct cfg80211_pmsr_ftm_request_peer {
u8 ftms_per_burst;
u8 ftmr_retries;
u8 bss_color;
+ u32 min_time_between_measurements;
+ u32 max_time_between_measurements;
+ u32 availability_window;
+ u32 nominal_time;
+ u32 measurements_per_aw;
};
/**
@@ -4395,12 +4413,14 @@ struct cfg80211_pmsr_ftm_request_peer {
* @addr: MAC address
* @chandef: channel to use
* @report_ap_tsf: report the associated AP's TSF
+ * @pd_request: indicates a peer-to-peer PD request
* @ftm: FTM data, see &struct cfg80211_pmsr_ftm_request_peer
*/
struct cfg80211_pmsr_request_peer {
u8 addr[ETH_ALEN];
struct cfg80211_chan_def chandef;
- u8 report_ap_tsf:1;
+ u8 report_ap_tsf:1,
+ pd_request:1;
struct cfg80211_pmsr_ftm_request_peer ftm;
};
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 59e8ba9c37c4..4dafaf25b0f6 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -7792,6 +7792,8 @@ enum nl80211_peer_measurement_resp {
* @NL80211_PMSR_PEER_ATTR_RESP: This is a nested attribute indexed by
* measurement type, with attributes from the
* &enum nl80211_peer_measurement_resp inside.
+ * @NL80211_PMSR_PEER_ATTR_PD_REQUEST: flag attribute indicating this is a
+ * peer-to-peer PD request
*
* @NUM_NL80211_PMSR_PEER_ATTRS: internal
* @NL80211_PMSR_PEER_ATTR_MAX: highest attribute number
@@ -7803,6 +7805,7 @@ enum nl80211_peer_measurement_peer_attrs {
NL80211_PMSR_PEER_ATTR_CHAN,
NL80211_PMSR_PEER_ATTR_REQ,
NL80211_PMSR_PEER_ATTR_RESP,
+ NL80211_PMSR_PEER_ATTR_PD_REQUEST,
/* keep last */
NUM_NL80211_PMSR_PEER_ATTRS,
@@ -8012,6 +8015,24 @@ enum nl80211_peer_measurement_ftm_capa {
* %NL80211_ATTR_TIMEOUT has expired.
* Set %NL80211_PMSR_FTM_REQ_ATTR_LMR_FEEDBACK to ensure RSTA will have
* the measurement results to report back in the FTM response.
+ * @NL80211_PMSR_FTM_REQ_ATTR_MIN_TIME_BETWEEN_MEASUREMENTS: minimum time
+ * between two consecutive range measurements in units of 100 microseconds,
+ * applicable for non-trigger based ranging (u32). Only valid if
+ * %NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED is set.
+ * @NL80211_PMSR_FTM_REQ_ATTR_MAX_TIME_BETWEEN_MEASUREMENTS: maximum time
+ * between two consecutive range measurements in units of 10 milliseconds,
+ * to avoid FTM negotiation, applicable for non-trigger based ranging (u32)
+ * . Only valid if %NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED is set.
+ * @NL80211_PMSR_FTM_REQ_ATTR_NOMINAL_TIME: the nominal time field shall be set
+ * to the nominal duration between adjacent Availability Windows in units
+ * of milli seconds (u32). Only valid if
+ * %NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED is set.
+ * @NL80211_PMSR_FTM_REQ_ATTR_AW_DURATION: The AW duration field shall be set
+ * to the duration of the AW in units of 1ms (0-255 ms) (u32).
+ * Only valid if %NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED is set.
+ * @NL80211_PMSR_FTM_REQ_ATTR_MEAS_PER_AW: meas per AW field shall indicate the
+ * number of measurements attempts per AW with a maximum value of 4 (u32).
+ * Only valid if %NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED is set.
*
* @NUM_NL80211_PMSR_FTM_REQ_ATTR: internal
* @NL80211_PMSR_FTM_REQ_ATTR_MAX: highest attribute number
@@ -8033,6 +8054,11 @@ enum nl80211_peer_measurement_ftm_req {
NL80211_PMSR_FTM_REQ_ATTR_LMR_FEEDBACK,
NL80211_PMSR_FTM_REQ_ATTR_BSS_COLOR,
NL80211_PMSR_FTM_REQ_ATTR_RSTA,
+ NL80211_PMSR_FTM_REQ_ATTR_MIN_TIME_BETWEEN_MEASUREMENTS,
+ NL80211_PMSR_FTM_REQ_ATTR_MAX_TIME_BETWEEN_MEASUREMENTS,
+ NL80211_PMSR_FTM_REQ_ATTR_NOMINAL_TIME,
+ NL80211_PMSR_FTM_REQ_ATTR_AW_DURATION,
+ NL80211_PMSR_FTM_REQ_ATTR_MEAS_PER_AW,
/* keep last */
NUM_NL80211_PMSR_FTM_REQ_ATTR,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 77447f63d112..2b7de56c466f 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -372,6 +372,15 @@ nl80211_pmsr_ftm_req_attr_policy[NL80211_PMSR_FTM_REQ_ATTR_MAX + 1] = {
[NL80211_PMSR_FTM_REQ_ATTR_LMR_FEEDBACK] = { .type = NLA_FLAG },
[NL80211_PMSR_FTM_REQ_ATTR_BSS_COLOR] = { .type = NLA_U8 },
[NL80211_PMSR_FTM_REQ_ATTR_RSTA] = { .type = NLA_FLAG },
+ [NL80211_PMSR_FTM_REQ_ATTR_MIN_TIME_BETWEEN_MEASUREMENTS] = {
+ .type = NLA_U32
+ },
+ [NL80211_PMSR_FTM_REQ_ATTR_MAX_TIME_BETWEEN_MEASUREMENTS] = {
+ .type = NLA_U32
+ },
+ [NL80211_PMSR_FTM_REQ_ATTR_NOMINAL_TIME] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_REQ_ATTR_AW_DURATION] = NLA_POLICY_MAX(NLA_U32, 255),
+ [NL80211_PMSR_FTM_REQ_ATTR_MEAS_PER_AW] = NLA_POLICY_MAX(NLA_U32, 4),
};
static const struct nla_policy
@@ -394,6 +403,7 @@ nl80211_pmsr_peer_attr_policy[NL80211_PMSR_PEER_ATTR_MAX + 1] = {
[NL80211_PMSR_PEER_ATTR_REQ] =
NLA_POLICY_NESTED(nl80211_pmsr_req_attr_policy),
[NL80211_PMSR_PEER_ATTR_RESP] = { .type = NLA_REJECT },
+ [NL80211_PMSR_PEER_ATTR_PD_REQUEST] = { .type = NLA_FLAG },
};
static const struct nla_policy
diff --git a/net/wireless/pmsr.c b/net/wireless/pmsr.c
index 17f0b1c97d58..4ae25b946111 100644
--- a/net/wireless/pmsr.c
+++ b/net/wireless/pmsr.c
@@ -91,11 +91,10 @@ static int pmsr_parse_ftm(struct cfg80211_registered_device *rdev,
nla_get_u32(tb[NL80211_PMSR_FTM_REQ_ATTR_FTMS_PER_BURST]);
if (capa->ftm.max_ftms_per_burst &&
- (out->ftm.ftms_per_burst > capa->ftm.max_ftms_per_burst ||
- out->ftm.ftms_per_burst == 0)) {
+ (out->ftm.ftms_per_burst > capa->ftm.max_ftms_per_burst)) {
NL_SET_ERR_MSG_ATTR(info->extack,
tb[NL80211_PMSR_FTM_REQ_ATTR_FTMS_PER_BURST],
- "FTM: FTMs per burst must be set lower than the device limit but non-zero");
+ "FTM: FTMs per burst must be set lower than the device limit");
return -EINVAL;
}
@@ -196,6 +195,36 @@ static int pmsr_parse_ftm(struct cfg80211_registered_device *rdev,
return -EOPNOTSUPP;
}
+ if (out->ftm.non_trigger_based) {
+ if (tb[NL80211_PMSR_FTM_REQ_ATTR_MIN_TIME_BETWEEN_MEASUREMENTS])
+ out->ftm.min_time_between_measurements =
+ nla_get_u32(tb[NL80211_PMSR_FTM_REQ_ATTR_MIN_TIME_BETWEEN_MEASUREMENTS]);
+
+ if (tb[NL80211_PMSR_FTM_REQ_ATTR_MAX_TIME_BETWEEN_MEASUREMENTS])
+ out->ftm.max_time_between_measurements =
+ nla_get_u32(tb[NL80211_PMSR_FTM_REQ_ATTR_MAX_TIME_BETWEEN_MEASUREMENTS]);
+
+ if (tb[NL80211_PMSR_FTM_REQ_ATTR_AW_DURATION])
+ out->ftm.availability_window =
+ nla_get_u32(tb[NL80211_PMSR_FTM_REQ_ATTR_AW_DURATION]);
+
+ if (tb[NL80211_PMSR_FTM_REQ_ATTR_NOMINAL_TIME])
+ out->ftm.nominal_time =
+ nla_get_u32(tb[NL80211_PMSR_FTM_REQ_ATTR_NOMINAL_TIME]);
+
+ if (tb[NL80211_PMSR_FTM_REQ_ATTR_MEAS_PER_AW])
+ out->ftm.measurements_per_aw =
+ nla_get_u32(tb[NL80211_PMSR_FTM_REQ_ATTR_MEAS_PER_AW]);
+ }
+
+ if (!out->ftm.rsta && out->ftm.ftms_per_burst == 0 &&
+ out->ftm.measurements_per_aw == 0) {
+ NL_SET_ERR_MSG_ATTR(info->extack,
+ ftmreq,
+ "FTM: Invalid parameters:Both Ftm's per burst and measurements per avail window are zero");
+ return -EINVAL;
+ }
+
return 0;
}
@@ -223,6 +252,14 @@ static int pmsr_parse_peer(struct cfg80211_registered_device *rdev,
memcpy(out->addr, nla_data(tb[NL80211_PMSR_PEER_ATTR_ADDR]), ETH_ALEN);
+ out->pd_request = !!tb[NL80211_PMSR_PEER_ATTR_PD_REQUEST];
+
+ if (out->pd_request && !rdev->wiphy.pmsr_capa->pd_support) {
+ NL_SET_ERR_MSG_ATTR(info->extack,
+ tb[NL80211_PMSR_PEER_ATTR_PD_REQUEST],
+ "PD request not supported by device");
+ return -EINVAL;
+ }
/* reuse info->attrs */
memset(info->attrs, 0, sizeof(*info->attrs) * (NL80211_ATTR_MAX + 1));
err = nla_parse_nested_deprecated(info->attrs, NL80211_ATTR_MAX,
--
2.34.1
^ permalink raw reply related [flat|nested] 27+ messages in thread* Re: [PATCH wireless-next v2 07/16] wifi: cfg80211: add continuous ranging and PD request support
2026-03-04 7:15 ` [PATCH wireless-next v2 07/16] wifi: cfg80211: add continuous ranging and PD request support Peddolla Harshavardhan Reddy
@ 2026-03-04 11:52 ` Johannes Berg
2026-03-05 15:38 ` Peddolla Harshavardhan Reddy
0 siblings, 1 reply; 27+ messages in thread
From: Johannes Berg @ 2026-03-04 11:52 UTC (permalink / raw)
To: Peddolla Harshavardhan Reddy; +Cc: linux-wireless, kavita.kavita
On Wed, 2026-03-04 at 12:45 +0530, Peddolla Harshavardhan Reddy wrote:
>
> +++ b/net/wireless/pmsr.c
> @@ -91,11 +91,10 @@ static int pmsr_parse_ftm(struct cfg80211_registered_device *rdev,
> nla_get_u32(tb[NL80211_PMSR_FTM_REQ_ATTR_FTMS_PER_BURST]);
>
> if (capa->ftm.max_ftms_per_burst &&
> - (out->ftm.ftms_per_burst > capa->ftm.max_ftms_per_burst ||
> - out->ftm.ftms_per_burst == 0)) {
> + (out->ftm.ftms_per_burst > capa->ftm.max_ftms_per_burst)) {
> NL_SET_ERR_MSG_ATTR(info->extack,
> tb[NL80211_PMSR_FTM_REQ_ATTR_FTMS_PER_BURST],
> - "FTM: FTMs per burst must be set lower than the device limit but non-zero");
> + "FTM: FTMs per burst must be set lower than the device limit");
> return -EINVAL;
> }
I really don't know anything about this protocol, but this also isn't
described in the commit message, and zero seems odd?
Maybe it should be allowed only under some additional conditions,
otherwise you're potentially changing some check that existing
drivers/devices rely on?
johannes
^ permalink raw reply [flat|nested] 27+ messages in thread* Re: [PATCH wireless-next v2 07/16] wifi: cfg80211: add continuous ranging and PD request support
2026-03-04 11:52 ` Johannes Berg
@ 2026-03-05 15:38 ` Peddolla Harshavardhan Reddy
0 siblings, 0 replies; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-05 15:38 UTC (permalink / raw)
To: Johannes Berg; +Cc: linux-wireless, kavita.kavita
On 04-Mar-26 5:22 PM, Johannes Berg wrote:
> On Wed, 2026-03-04 at 12:45 +0530, Peddolla Harshavardhan Reddy wrote:
>> +++ b/net/wireless/pmsr.c
>> @@ -91,11 +91,10 @@ static int pmsr_parse_ftm(struct cfg80211_registered_device *rdev,
>> nla_get_u32(tb[NL80211_PMSR_FTM_REQ_ATTR_FTMS_PER_BURST]);
>>
>> if (capa->ftm.max_ftms_per_burst &&
>> - (out->ftm.ftms_per_burst > capa->ftm.max_ftms_per_burst ||
>> - out->ftm.ftms_per_burst == 0)) {
>> + (out->ftm.ftms_per_burst > capa->ftm.max_ftms_per_burst)) {
>> NL_SET_ERR_MSG_ATTR(info->extack,
>> tb[NL80211_PMSR_FTM_REQ_ATTR_FTMS_PER_BURST],
>> - "FTM: FTMs per burst must be set lower than the device limit but non-zero");
>> + "FTM: FTMs per burst must be set lower than the device limit");
>> return -EINVAL;
>> }
> I really don't know anything about this protocol, but this also isn't
> described in the commit message, and zero seems odd?
>
> Maybe it should be allowed only under some additional conditions,
> otherwise you're potentially changing some check that existing
> drivers/devices rely on?
>
> johannes
Sure, will address this in the next version. Thanks.
^ permalink raw reply [flat|nested] 27+ messages in thread
* [PATCH wireless-next v2 08/16] wifi: cfg80211: extend PMSR FTM response for proximity ranging
2026-03-04 7:15 [PATCH wireless-next v2 00/16] wifi: Ranging support enhancements Peddolla Harshavardhan Reddy
` (6 preceding siblings ...)
2026-03-04 7:15 ` [PATCH wireless-next v2 07/16] wifi: cfg80211: add continuous ranging and PD request support Peddolla Harshavardhan Reddy
@ 2026-03-04 7:15 ` Peddolla Harshavardhan Reddy
2026-03-04 7:15 ` [PATCH wireless-next v2 09/16] wifi: cfg80211: add role-based PD peer limits Peddolla Harshavardhan Reddy
` (7 subsequent siblings)
15 siblings, 0 replies; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-04 7:15 UTC (permalink / raw)
To: johannes; +Cc: linux-wireless, kavita.kavita
Applications need negotiated session parameters to interpret
proximity ranging results and perform post-processing. Currently,
the FTM response lacks LTF repetition counts, time constraints,
spatial stream configuration, and availability window parameters.
Extend the FTM response structure to report these negotiated
parameters, enabling applications to track session configuration
and use them in post-processing to increase ranging precision.
Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com>
---
include/net/cfg80211.h | 61 ++++++++++++++++++++++++++++++++++--
include/uapi/linux/nl80211.h | 42 ++++++++++++++++++++++++-
net/wireless/pmsr.c | 16 ++++++++++
3 files changed, 116 insertions(+), 3 deletions(-)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index b66300497312..febd7bf50d88 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4260,6 +4260,27 @@ struct cfg80211_ftm_responder_stats {
* (must have either this or @rtt_avg)
* @dist_variance: variance of distances measured (see also @rtt_variance)
* @dist_spread: spread of distances measured (see also @rtt_spread)
+ * @tx_ltf_repetition_count: negotiated value of number of tx ltf repetitions
+ * in NDP frames
+ * @rx_ltf_repetition_count: negotiated value of number of rx ltf repetitions
+ * in NDP frames
+ * @max_time_between_measurements: the negotiated maximum interval (in units of
+ * 10 ms) by which the ISTA must complete the next measurement cycle.
+ * @min_time_between_measurements: the negotiated minimum interval (in units of
+ * 100 us) between two consecutive range measurements initiated by the
+ * ISTA.
+ * @num_tx_spatial_streams: number of Tx space-time streams used in the NDP
+ * frame during the measurement sounding phase.
+ * @num_rx_spatial_streams: number of Rx space-time streams used in the NDP
+ * frame during the measurement sounding phase.
+ * @nominal_time: negotiated nominal duration between adjacent availability
+ * windows in units of milliseconds (u32).
+ * @availability_window: negotiated availability window time used in this
+ * session in units of milliseconds (u32).
+ * @measurements_per_aw: negotiated number of measurement attempts per
+ * availability window.
+ * @chan_width: band width used for measurement.
+ * @preamble: preamble used for measurement.
* @num_ftmr_attempts_valid: @num_ftmr_attempts is valid
* @num_ftmr_successes_valid: @num_ftmr_successes is valid
* @rssi_avg_valid: @rssi_avg is valid
@@ -4272,6 +4293,19 @@ struct cfg80211_ftm_responder_stats {
* @dist_avg_valid: @dist_avg is valid
* @dist_variance_valid: @dist_variance is valid
* @dist_spread_valid: @dist_spread is valid
+ * @tx_ltf_repetition_count_valid: @tx_ltf_repetition_count is valid
+ * @rx_ltf_repetition_count_valid: @rx_ltf_repetition_count is valid
+ * @max_time_between_measurements_valid: @max_time_between_measurements is valid
+ * @min_time_between_measurements_valid: @min_time_between_measurements is valid
+ * @num_tx_spatial_streams_valid: @num_tx_spatial_streams is valid
+ * @num_rx_spatial_streams_valid: @num_rx_spatial_streams is valid
+ * @nominal_time_valid: @nominal_time is valid
+ * @availability_window_valid: @availability_window is valid
+ * @measurements_per_aw_valid: @measurements_per_aw is valid
+ * @chan_width_valid: @chan_width is valid.
+ * @preamble_valid: @preamble is valid.
+ * @is_delayed_lmr: indicates if the reported LMR is of the current burst or the
+ * previous burst, flag.
*/
struct cfg80211_pmsr_ftm_result {
const u8 *lci;
@@ -4295,8 +4329,19 @@ struct cfg80211_pmsr_ftm_result {
s64 dist_avg;
s64 dist_variance;
s64 dist_spread;
+ u32 tx_ltf_repetition_count;
+ u32 rx_ltf_repetition_count;
+ u32 max_time_between_measurements;
+ u32 min_time_between_measurements;
+ u32 num_tx_spatial_streams;
+ u32 num_rx_spatial_streams;
+ u32 nominal_time;
+ u32 availability_window;
+ u32 measurements_per_aw;
+ enum nl80211_chan_width chan_width;
+ enum nl80211_preamble preamble;
- u16 num_ftmr_attempts_valid:1,
+ u32 num_ftmr_attempts_valid:1,
num_ftmr_successes_valid:1,
rssi_avg_valid:1,
rssi_spread_valid:1,
@@ -4307,7 +4352,19 @@ struct cfg80211_pmsr_ftm_result {
rtt_spread_valid:1,
dist_avg_valid:1,
dist_variance_valid:1,
- dist_spread_valid:1;
+ dist_spread_valid:1,
+ tx_ltf_repetition_count_valid:1,
+ rx_ltf_repetition_count_valid:1,
+ max_time_between_measurements_valid:1,
+ min_time_between_measurements_valid:1,
+ num_tx_spatial_streams_valid:1,
+ num_rx_spatial_streams_valid:1,
+ nominal_time_valid:1,
+ availability_window_valid:1,
+ measurements_per_aw_valid:1,
+ chan_width_valid:1,
+ preamble_valid:1,
+ is_delayed_lmr:1;
};
/**
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 4dafaf25b0f6..67cc1ce6d2a1 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -8145,7 +8145,35 @@ enum nl80211_peer_measurement_ftm_failure_reasons {
* @NL80211_PMSR_FTM_RESP_ATTR_PAD: ignore, for u64/s64 padding only
* @NL80211_PMSR_FTM_RESP_ATTR_BURST_PERIOD: actual burst period used by
* the responder (similar to request, u16)
- *
+ * @NL80211_PMSR_FTM_RESP_ATTR_TX_LTF_REPETITION_COUNT: negotiated value of
+ * number of tx ltf repetitions in NDP frames (u32, optional)
+ * @NL80211_PMSR_FTM_RESP_ATTR_RX_LTF_REPETITION_COUNT: negotiated value of
+ * number of rx ltf repetitions in NDP frames (u32, optional)
+ * @NL80211_PMSR_FTM_RESP_ATTR_MAX_TIME_BETWEEN_MEASUREMENTS: negotiated value
+ * where latest time by which the ISTA needs to complete the next round of
+ * measurements, in units of 10 ms (u32, optional)
+ * @NL80211_PMSR_FTM_RESP_ATTR_MIN_TIME_BETWEEN_MEASUREMENTS: negotiated
+ * minimum time between two consecutive range measurements initiated by an
+ * ISTA, in units of 100 us (u32, optional)
+ * @NL80211_PMSR_FTM_RESP_ATTR_NUM_TX_SPATIAL_STREAMS: number of Tx space-time
+ * streams used in NDP frames during the measurement sounding phase
+ * (u32, optional).
+ * @NL80211_PMSR_FTM_RESP_ATTR_NUM_RX_SPATIAL_STREAMS: number of Rx space-time
+ * streams used in the NDP frames during the measurement sounding phase
+ * (u32, optional)
+ * @NL80211_PMSR_FTM_RESP_ATTR_NOMINAL_TIME: negotiated nominal time used in
+ * this session in milliseconds. (u32, optional)
+ * @NL80211_PMSR_FTM_RESP_ATTR_AVAILABILITY_WINDOW: negotiated availability
+ * window time used in this session, in units of milli seconds.
+ * (u32, optional)
+ * @NL80211_PMSR_FTM_RESP_ATTR_MEASUREMENTS_PER_AW: negotiated measurements
+ * per availability window (u32, optional, max value 4)
+ * @NL80211_PMSR_FTM_RESP_ATTR_CHANNEL_WIDTH: u32 attribute indicating channel
+ * width used for measurement, see &enum nl80211_chan_width (optional).
+ * @NL80211_PMSR_FTM_RESP_ATTR_PREAMBLE: u32 attribute indicating the preamble
+ * type used for the measurement, see &enum nl80211_preamble (optional).
+ * @NL80211_PMSR_FTM_RESP_ATTR_IS_DELAYED_LMR: flag, indicates if the
+ * current result is delayed LMR data.
* @NUM_NL80211_PMSR_FTM_RESP_ATTR: internal
* @NL80211_PMSR_FTM_RESP_ATTR_MAX: highest attribute number
*/
@@ -8174,6 +8202,18 @@ enum nl80211_peer_measurement_ftm_resp {
NL80211_PMSR_FTM_RESP_ATTR_CIVICLOC,
NL80211_PMSR_FTM_RESP_ATTR_PAD,
NL80211_PMSR_FTM_RESP_ATTR_BURST_PERIOD,
+ NL80211_PMSR_FTM_RESP_ATTR_TX_LTF_REPETITION_COUNT,
+ NL80211_PMSR_FTM_RESP_ATTR_RX_LTF_REPETITION_COUNT,
+ NL80211_PMSR_FTM_RESP_ATTR_MAX_TIME_BETWEEN_MEASUREMENTS,
+ NL80211_PMSR_FTM_RESP_ATTR_MIN_TIME_BETWEEN_MEASUREMENTS,
+ NL80211_PMSR_FTM_RESP_ATTR_NUM_TX_SPATIAL_STREAMS,
+ NL80211_PMSR_FTM_RESP_ATTR_NUM_RX_SPATIAL_STREAMS,
+ NL80211_PMSR_FTM_RESP_ATTR_NOMINAL_TIME,
+ NL80211_PMSR_FTM_RESP_ATTR_AVAILABILITY_WINDOW,
+ NL80211_PMSR_FTM_RESP_ATTR_MEASUREMENTS_PER_AW,
+ NL80211_PMSR_FTM_RESP_ATTR_CHANNEL_WIDTH,
+ NL80211_PMSR_FTM_RESP_ATTR_PREAMBLE,
+ NL80211_PMSR_FTM_RESP_ATTR_IS_DELAYED_LMR,
/* keep last */
NUM_NL80211_PMSR_FTM_RESP_ATTR,
diff --git a/net/wireless/pmsr.c b/net/wireless/pmsr.c
index 4ae25b946111..a230bb95f5e3 100644
--- a/net/wireless/pmsr.c
+++ b/net/wireless/pmsr.c
@@ -518,6 +518,22 @@ static int nl80211_pmsr_send_ftm_res(struct sk_buff *msg,
PUTOPT_U64(DIST_AVG, dist_avg);
PUTOPT_U64(DIST_VARIANCE, dist_variance);
PUTOPT_U64(DIST_SPREAD, dist_spread);
+ PUTOPT(u32, TX_LTF_REPETITION_COUNT, tx_ltf_repetition_count);
+ PUTOPT(u32, RX_LTF_REPETITION_COUNT, rx_ltf_repetition_count);
+ PUTOPT(u32, MAX_TIME_BETWEEN_MEASUREMENTS,
+ max_time_between_measurements);
+ PUTOPT(u32, MIN_TIME_BETWEEN_MEASUREMENTS,
+ min_time_between_measurements);
+ PUTOPT(u32, NUM_TX_SPATIAL_STREAMS, num_tx_spatial_streams);
+ PUTOPT(u32, NUM_RX_SPATIAL_STREAMS, num_rx_spatial_streams);
+ PUTOPT(u32, NOMINAL_TIME, nominal_time);
+ PUTOPT(u32, AVAILABILITY_WINDOW, availability_window);
+ PUTOPT(u32, MEASUREMENTS_PER_AW, measurements_per_aw);
+ PUTOPT(u32, CHANNEL_WIDTH, chan_width);
+ PUTOPT(u32, PREAMBLE, preamble);
+ if (res->ftm.is_delayed_lmr &&
+ nla_put_flag(msg, NL80211_PMSR_FTM_RESP_ATTR_IS_DELAYED_LMR))
+ goto error;
if (res->ftm.lci && res->ftm.lci_len &&
nla_put(msg, NL80211_PMSR_FTM_RESP_ATTR_LCI,
res->ftm.lci_len, res->ftm.lci))
--
2.34.1
^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH wireless-next v2 09/16] wifi: cfg80211: add role-based PD peer limits
2026-03-04 7:15 [PATCH wireless-next v2 00/16] wifi: Ranging support enhancements Peddolla Harshavardhan Reddy
` (7 preceding siblings ...)
2026-03-04 7:15 ` [PATCH wireless-next v2 08/16] wifi: cfg80211: extend PMSR FTM response for proximity ranging Peddolla Harshavardhan Reddy
@ 2026-03-04 7:15 ` Peddolla Harshavardhan Reddy
2026-03-04 7:15 ` [PATCH wireless-next v2 10/16] wifi: cfg80211: add ingress/egress distance thresholds for FTM Peddolla Harshavardhan Reddy
` (6 subsequent siblings)
15 siblings, 0 replies; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-04 7:15 UTC (permalink / raw)
To: johannes; +Cc: linux-wireless, kavita.kavita
Peer measurement capabilities currently advertise a single maximum
peer count regardless of device role for proximity detection (PD).
Some devices support different peer limits when operating as PD
initiator versus PD responder.
Introduce separate peer limit capabilities for each PD role. When a
device supports concurrent initiator and responder operation,
enforce the sum of both limits to prevent resource oversubscription.
Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com>
---
include/net/cfg80211.h | 12 ++++++++++++
include/uapi/linux/nl80211.h | 16 ++++++++++++++++
net/wireless/nl80211.c | 12 ++++++++++++
net/wireless/pmsr.c | 32 ++++++++++++++++++++++++++++----
4 files changed, 68 insertions(+), 4 deletions(-)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index febd7bf50d88..8bbca2a98ac1 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -5776,6 +5776,16 @@ cfg80211_get_iftype_ext_capa(struct wiphy *wiphy, enum nl80211_iftype type);
* multi-peer request this will indicate if the device can act
* simultaneously as initiator and a responder. Only valid if @pd_support
* is set.
+ * @pd_max_peer_ista_role: Maximum number of peers allowed for a device
+ * operating in the ISTA role under proximity detection. Only valid if
+ * @pd_support is set. Sum of both @pd_max_peer_ista_role and
+ * @pd_max_peer_rsta_role is considered to enforce the max peers supported
+ * in case the request is of peer-to-peer PD type.
+ * @pd_max_peer_rsta_role: Maximum number of peers allowed for a device
+ * operating in the RSTA role under proximity detection. Only valid if
+ * @pd_support is set. Sum of both @pd_max_peer_ista_role and
+ * @pd_max_peer_rsta_role is considered to enforce the max peers supported
+ * in case the request is of peer-to-peer PD type
* @ftm: FTM measurement data
* @ftm.supported: FTM measurement is supported
* @ftm.asap: ASAP-mode is supported
@@ -5820,6 +5830,8 @@ struct cfg80211_pmsr_capabilities {
randomize_mac_addr:1,
pd_support:1,
pd_concurrent_ista_rsta_support:1;
+ u32 pd_max_peer_ista_role;
+ u32 pd_max_peer_rsta_role;
struct {
u32 preambles;
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 67cc1ce6d2a1..83d2a822c770 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -7841,6 +7841,20 @@ enum nl80211_peer_measurement_peer_attrs {
* multi-peer request, the device can act simultaneously as initiator and
* a responder, where the multiple requests are being processed
* simultaneously
+ * @NL80211_PMSR_ATTR_PD_MAX_PEER_ISTA_ROLE: u32 attribute indicating the
+ * maximum number of peers allowed for a device operating in the ISTA
+ * (Initiator STA) role under proximity detection. Only valid if
+ * %NL80211_PMSR_ATTR_PD_SUPPORT is set. Sum of both
+ * %NL80211_PMSR_ATTR_PD_MAX_PEER_ISTA_ROLE and
+ * %NL80211_PMSR_ATTR_PD_MAX_PEER_RSTA_ROLE is considered to enforce the
+ * max peers supported in case the request is of peer-to-peer PD type
+ * @NL80211_PMSR_ATTR_PD_MAX_PEER_RSTA_ROLE: u32 attribute indicating the
+ * maximum number of peers allowed for a device operating in the RSTA
+ * (Responder STA) role under proximity detection. Only valid if
+ * %NL80211_PMSR_ATTR_PD_SUPPORT is set. Sum of both
+ * %NL80211_PMSR_ATTR_PD_MAX_PEER_ISTA_ROLE and
+ * %NL80211_PMSR_ATTR_PD_MAX_PEER_RSTA_ROLE is considered to enforce the
+ * max peers supported in case the request is of peer-to-peer PD type
*
* @NUM_NL80211_PMSR_ATTR: internal
* @NL80211_PMSR_ATTR_MAX: highest attribute number
@@ -7855,6 +7869,8 @@ enum nl80211_peer_measurement_attrs {
NL80211_PMSR_ATTR_PEERS,
NL80211_PMSR_ATTR_PD_SUPPORT,
NL80211_PMSR_ATTR_PD_CONCURRENT_ISTA_RSTA_SUPPORT,
+ NL80211_PMSR_ATTR_PD_MAX_PEER_ISTA_ROLE,
+ NL80211_PMSR_ATTR_PD_MAX_PEER_RSTA_ROLE,
/* keep last */
NUM_NL80211_PMSR_ATTR,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 2b7de56c466f..5222ac8e8471 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -418,6 +418,8 @@ nl80211_pmsr_attr_policy[NL80211_PMSR_ATTR_MAX + 1] = {
[NL80211_PMSR_ATTR_PD_CONCURRENT_ISTA_RSTA_SUPPORT] = {
.type = NLA_REJECT
},
+ [NL80211_PMSR_ATTR_PD_MAX_PEER_ISTA_ROLE] = { .type = NLA_REJECT },
+ [NL80211_PMSR_ATTR_PD_MAX_PEER_RSTA_ROLE] = { .type = NLA_REJECT },
};
static const struct nla_policy
@@ -2450,6 +2452,16 @@ static int nl80211_send_pmsr_capa(struct cfg80211_registered_device *rdev,
nla_put_flag(msg,
NL80211_PMSR_ATTR_PD_CONCURRENT_ISTA_RSTA_SUPPORT))
return -ENOBUFS;
+
+ if (cap->pd_max_peer_ista_role &&
+ nla_put_u32(msg, NL80211_PMSR_ATTR_PD_MAX_PEER_ISTA_ROLE,
+ cap->pd_max_peer_ista_role))
+ return -ENOBUFS;
+
+ if (cap->pd_max_peer_rsta_role &&
+ nla_put_u32(msg, NL80211_PMSR_ATTR_PD_MAX_PEER_RSTA_ROLE,
+ cap->pd_max_peer_rsta_role))
+ return -ENOBUFS;
}
caps = nla_nest_start_noflag(msg, NL80211_PMSR_ATTR_TYPE_CAPA);
if (!caps)
diff --git a/net/wireless/pmsr.c b/net/wireless/pmsr.c
index a230bb95f5e3..3ca0e589d7cc 100644
--- a/net/wireless/pmsr.c
+++ b/net/wireless/pmsr.c
@@ -317,12 +317,15 @@ int nl80211_pmsr_start(struct sk_buff *skb, struct genl_info *info)
{
struct nlattr *reqattr = info->attrs[NL80211_ATTR_PEER_MEASUREMENTS];
struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ int count, rem, err, idx, pd_count, max_pd_peers;
struct wireless_dev *wdev = info->user_ptr[1];
+ const struct cfg80211_pmsr_capabilities *capa;
struct cfg80211_pmsr_request *req;
struct nlattr *peers, *peer;
- int count, rem, err, idx;
- if (!rdev->wiphy.pmsr_capa)
+ capa = rdev->wiphy.pmsr_capa;
+
+ if (!capa)
return -EOPNOTSUPP;
if (!reqattr)
@@ -337,7 +340,7 @@ int nl80211_pmsr_start(struct sk_buff *skb, struct genl_info *info)
nla_for_each_nested(peer, peers, rem) {
count++;
- if (count > rdev->wiphy.pmsr_capa->max_peers) {
+ if (count > capa->max_peers) {
NL_SET_ERR_MSG_ATTR(info->extack, peer,
"Too many peers used");
return -EINVAL;
@@ -353,7 +356,7 @@ int nl80211_pmsr_start(struct sk_buff *skb, struct genl_info *info)
req->timeout = nla_get_u32(info->attrs[NL80211_ATTR_TIMEOUT]);
if (info->attrs[NL80211_ATTR_MAC]) {
- if (!rdev->wiphy.pmsr_capa->randomize_mac_addr) {
+ if (!capa->randomize_mac_addr) {
NL_SET_ERR_MSG_ATTR(info->extack,
info->attrs[NL80211_ATTR_MAC],
"device cannot randomize MAC address");
@@ -378,6 +381,27 @@ int nl80211_pmsr_start(struct sk_buff *skb, struct genl_info *info)
goto out_err;
idx++;
}
+
+ /* Count PD requests and validate against PD peer limits */
+ if (capa->pd_support) {
+ pd_count = 0;
+
+ max_pd_peers = capa->pd_max_peer_ista_role +
+ capa->pd_max_peer_rsta_role;
+
+ for (idx = 0; idx < req->n_peers; idx++) {
+ if (req->peers[idx].pd_request) {
+ pd_count++;
+
+ if (pd_count > max_pd_peers) {
+ NL_SET_ERR_MSG(info->extack,
+ "Too many PD peers used");
+ err = -EINVAL;
+ goto out_err;
+ }
+ }
+ }
+ }
req->cookie = cfg80211_assign_cookie(rdev);
req->nl_portid = info->snd_portid;
--
2.34.1
^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH wireless-next v2 10/16] wifi: cfg80211: add ingress/egress distance thresholds for FTM
2026-03-04 7:15 [PATCH wireless-next v2 00/16] wifi: Ranging support enhancements Peddolla Harshavardhan Reddy
` (8 preceding siblings ...)
2026-03-04 7:15 ` [PATCH wireless-next v2 09/16] wifi: cfg80211: add role-based PD peer limits Peddolla Harshavardhan Reddy
@ 2026-03-04 7:15 ` Peddolla Harshavardhan Reddy
2026-03-04 7:15 ` [PATCH wireless-next v2 11/16] wifi: cfg80211: add PD-specific preamble and bandwidth capabilities Peddolla Harshavardhan Reddy
` (5 subsequent siblings)
15 siblings, 0 replies; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-04 7:15 UTC (permalink / raw)
To: johannes; +Cc: linux-wireless, kavita.kavita
Proximity detection applications need to receive measurement results
only when devices cross specific distance boundaries to avoid
unnecessary host wakeups and reduce power consumption. Currently,
there is no mechanism for applications to specify these distance
thresholds.
Introduce configurable distance-based reporting thresholds that
drivers can use to implement selective result reporting. Add
ingress and egress distance parameters allowing applications to
specify when results should be reported as peers cross these
boundaries, enabling drivers to reduce unnecessary data transfer
and host wakeups.
Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com>
---
include/net/cfg80211.h | 9 +++++++++
include/uapi/linux/nl80211.h | 9 +++++++++
net/wireless/nl80211.c | 2 ++
net/wireless/pmsr.c | 8 ++++++++
4 files changed, 28 insertions(+)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 8bbca2a98ac1..1b663627a0e6 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4439,6 +4439,13 @@ struct cfg80211_pmsr_result {
* in units of milli seconds. Only valid if @non_trigger_based is set.
* @measurements_per_aw: number of measurement attempts per availability window
* with a maximum value of 4. Only valid if @non_trigger_based is set.
+ * @ingress_distancemm: the measurement result of the peer needs
+ * to be indicated in case the device moves into this range.(units mm, u64)
+ * measurement results need to be sent on a burst index basis in this case.
+ * @egress_distancemm: the measurement result of the peer needs
+ * to be indicated in case the device moves out of this range.
+ * (units mm, u64). measurement results need to be sent on a burst index
+ * basis in this case.
*
* See also nl80211 for the respective attribute documentation.
*/
@@ -4463,6 +4470,8 @@ struct cfg80211_pmsr_ftm_request_peer {
u32 availability_window;
u32 nominal_time;
u32 measurements_per_aw;
+ u64 ingress_distancemm;
+ u64 egress_distancemm;
};
/**
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 83d2a822c770..174592017486 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -8049,6 +8049,12 @@ enum nl80211_peer_measurement_ftm_capa {
* @NL80211_PMSR_FTM_REQ_ATTR_MEAS_PER_AW: meas per AW field shall indicate the
* number of measurements attempts per AW with a maximum value of 4 (u32).
* Only valid if %NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED is set.
+ * @NL80211_PMSR_FTM_REQ_ATTR_PAD: ignore, for u64/s64 padding only
+ * @NL80211_PMSR_FTM_REQ_ATTR_INGRESS: the measurement result of the peer needs
+ * to be indicated in case the device moves into this range.(units mm, u64)
+ * @NL80211_PMSR_FTM_REQ_ATTR_EGRESS: the measurement result of the peer needs
+ * to be indicated in case the device moves out of this range.
+ * (units mm, u64)
*
* @NUM_NL80211_PMSR_FTM_REQ_ATTR: internal
* @NL80211_PMSR_FTM_REQ_ATTR_MAX: highest attribute number
@@ -8075,6 +8081,9 @@ enum nl80211_peer_measurement_ftm_req {
NL80211_PMSR_FTM_REQ_ATTR_NOMINAL_TIME,
NL80211_PMSR_FTM_REQ_ATTR_AW_DURATION,
NL80211_PMSR_FTM_REQ_ATTR_MEAS_PER_AW,
+ NL80211_PMSR_FTM_REQ_ATTR_PAD,
+ NL80211_PMSR_FTM_REQ_ATTR_INGRESS,
+ NL80211_PMSR_FTM_REQ_ATTR_EGRESS,
/* keep last */
NUM_NL80211_PMSR_FTM_REQ_ATTR,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 5222ac8e8471..e6969578f4f1 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -381,6 +381,8 @@ nl80211_pmsr_ftm_req_attr_policy[NL80211_PMSR_FTM_REQ_ATTR_MAX + 1] = {
[NL80211_PMSR_FTM_REQ_ATTR_NOMINAL_TIME] = { .type = NLA_U32 },
[NL80211_PMSR_FTM_REQ_ATTR_AW_DURATION] = NLA_POLICY_MAX(NLA_U32, 255),
[NL80211_PMSR_FTM_REQ_ATTR_MEAS_PER_AW] = NLA_POLICY_MAX(NLA_U32, 4),
+ [NL80211_PMSR_FTM_REQ_ATTR_INGRESS] = { .type = NLA_U64 },
+ [NL80211_PMSR_FTM_REQ_ATTR_EGRESS] = { .type = NLA_U64 },
};
static const struct nla_policy
diff --git a/net/wireless/pmsr.c b/net/wireless/pmsr.c
index 3ca0e589d7cc..f2bbbf8eb6f2 100644
--- a/net/wireless/pmsr.c
+++ b/net/wireless/pmsr.c
@@ -225,6 +225,14 @@ static int pmsr_parse_ftm(struct cfg80211_registered_device *rdev,
return -EINVAL;
}
+ if (tb[NL80211_PMSR_FTM_REQ_ATTR_INGRESS])
+ out->ftm.ingress_distancemm =
+ nla_get_u64(tb[NL80211_PMSR_FTM_REQ_ATTR_INGRESS]);
+
+ if (tb[NL80211_PMSR_FTM_REQ_ATTR_EGRESS])
+ out->ftm.egress_distancemm =
+ nla_get_u64(tb[NL80211_PMSR_FTM_REQ_ATTR_EGRESS]);
+
return 0;
}
--
2.34.1
^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH wireless-next v2 11/16] wifi: cfg80211: add PD-specific preamble and bandwidth capabilities
2026-03-04 7:15 [PATCH wireless-next v2 00/16] wifi: Ranging support enhancements Peddolla Harshavardhan Reddy
` (9 preceding siblings ...)
2026-03-04 7:15 ` [PATCH wireless-next v2 10/16] wifi: cfg80211: add ingress/egress distance thresholds for FTM Peddolla Harshavardhan Reddy
@ 2026-03-04 7:15 ` Peddolla Harshavardhan Reddy
2026-03-04 7:15 ` [PATCH wireless-next v2 12/16] wifi: cfg80211: add FTM range report negotiation support Peddolla Harshavardhan Reddy
` (4 subsequent siblings)
15 siblings, 0 replies; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-04 7:15 UTC (permalink / raw)
To: johannes; +Cc: linux-wireless, kavita.kavita
Some devices support different preamble and bandwidth configurations
for proximity detection (PD) versus standard ranging, but capabilities
currently report only a single set for all FTM measurements.
Introduce separate preamble and bandwidth capability reporting for PD
requests with EDCA and NTB-based ranging, allowing devices to advertise
different supported preambles and bandwidths for PD operations.
Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com>
---
include/net/cfg80211.h | 16 ++++++++++++++++
include/uapi/linux/nl80211.h | 22 ++++++++++++++++++++++
net/wireless/nl80211.c | 12 ++++++++++++
net/wireless/pmsr.c | 21 +++++++++++++++++++--
4 files changed, 69 insertions(+), 2 deletions(-)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 1b663627a0e6..61651ecc3c9d 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -5832,6 +5832,18 @@ cfg80211_get_iftype_ext_capa(struct wiphy *wiphy, enum nl80211_iftype type);
* @ftm.support_rsta: supports operating as RSTA in PMSR FTM request
* @ftm.support_edca_responder: supports operating as FTM responder in PMSR FTM
* request for EDCA-based ranging
+ * @ftm.pd_edca_preambles: bitmap of preambles supported
+ * (&enum nl80211_preamble) in case of PD request with EDCA based
+ * initiator or responder role. ignored if @pd_support is not set.
+ * @ftm.pd_ntb_preambles: bitmap of preambles supported
+ * (&enum nl80211_preamble) in case of PD request with NTB based
+ * initiator or responder role. ignored if @pd_support is not set.
+ * @ftm.pd_edca_bandwidths: bitmap of bandwidths supported
+ * (&enum nl80211_chan_width) in case of PD request with EDCA based
+ * initiator or responder role. ignored if @pd_support is not set.
+ * @ftm.pd_ntb_bandwidths: bitmap of bandwidths supported
+ * (&enum nl80211_chan_width) in case of PD request with NTB based
+ * initiator or responder role. ignored if @pd_support is not set.
*/
struct cfg80211_pmsr_capabilities {
unsigned int max_peers;
@@ -5867,6 +5879,10 @@ struct cfg80211_pmsr_capabilities {
u32 min_allowed_ranging_interval_ntb;
u8 support_rsta:1,
support_edca_responder:1;
+ u32 pd_edca_preambles;
+ u32 pd_ntb_preambles;
+ u32 pd_edca_bandwidths;
+ u32 pd_ntb_bandwidths;
} ftm;
};
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 174592017486..f064d6a260fb 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -7942,6 +7942,24 @@ enum nl80211_peer_measurement_attrs {
* @NL80211_PMSR_FTM_CAPA_ATTR_MIN_INTERVAL_NTB: u32 attribute indicating
* the minimum NTB ranging interval supported by the device
* in milli seconds. (0 means unknown)
+ * @NL80211_PMSR_FTM_CAPA_ATTR_PD_EDCA_PREAMBLES: u32 bitmap of values from
+ * &enum nl80211_preamble indicating the supported preambles for FTM in
+ * case of PD based EDCA initiator or responder role.
+ * @NL80211_PMSR_FTM_CAPA_ATTR_PD_NTB_PREAMBLES: u32 bitmap of values from
+ * &enum nl80211_preamble indicating the supported preambles for FTM in
+ * case of PD based NTB initiator or responder role.
+ * @NL80211_PMSR_FTM_CAPA_ATTR_PD_EDCA_BANDWIDTHS: u32 bitmap of values from
+ * &enum nl80211_chan_width indicating the supported channel
+ * bandwidths for FTM in case of PD based EDCA initiator or responder role.
+ * Note that a higher channel bandwidth may be configured to allow for
+ * other measurements types with different bandwidth requirement in the
+ * same measurement.
+ * @NL80211_PMSR_FTM_CAPA_ATTR_PD_NTB_BANDWIDTHS: u32 bitmap of values from
+ * &enum nl80211_chan_width indicating the supported channel
+ * bandwidths for FTM in case of PD based NTB initiator or responder role.
+ * Note that a higher channel bandwidth may be configured to allow for
+ * other measurements types with different bandwidth requirement in the
+ * same measurement.
*
* @NUM_NL80211_PMSR_FTM_CAPA_ATTR: internal
* @NL80211_PMSR_FTM_CAPA_ATTR_MAX: highest attribute number
@@ -7972,6 +7990,10 @@ enum nl80211_peer_measurement_ftm_capa {
NL80211_PMSR_FTM_CAPA_ATTR_MAX_NUM_RX_ANTENNAS,
NL80211_PMSR_FTM_CAPA_ATTR_MIN_INTERVAL_EDCA,
NL80211_PMSR_FTM_CAPA_ATTR_MIN_INTERVAL_NTB,
+ NL80211_PMSR_FTM_CAPA_ATTR_PD_EDCA_PREAMBLES,
+ NL80211_PMSR_FTM_CAPA_ATTR_PD_NTB_PREAMBLES,
+ NL80211_PMSR_FTM_CAPA_ATTR_PD_EDCA_BANDWIDTHS,
+ NL80211_PMSR_FTM_CAPA_ATTR_PD_NTB_BANDWIDTHS,
/* keep last */
NUM_NL80211_PMSR_FTM_CAPA_ATTR,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index e6969578f4f1..1deedb1c6c50 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2412,6 +2412,18 @@ nl80211_send_pmsr_ftm_capa(const struct cfg80211_pmsr_capabilities *cap,
nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_MIN_INTERVAL_NTB,
cap->ftm.min_allowed_ranging_interval_ntb))
return -ENOBUFS;
+ if (nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_PD_EDCA_PREAMBLES,
+ cap->ftm.pd_edca_preambles))
+ return -ENOBUFS;
+ if (nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_PD_NTB_PREAMBLES,
+ cap->ftm.pd_ntb_preambles))
+ return -ENOBUFS;
+ if (nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_PD_EDCA_BANDWIDTHS,
+ cap->ftm.pd_edca_bandwidths))
+ return -ENOBUFS;
+ if (nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_PD_NTB_BANDWIDTHS,
+ cap->ftm.pd_ntb_bandwidths))
+ return -ENOBUFS;
nla_nest_end(msg, ftm);
return 0;
diff --git a/net/wireless/pmsr.c b/net/wireless/pmsr.c
index f2bbbf8eb6f2..c4c027fc0b63 100644
--- a/net/wireless/pmsr.c
+++ b/net/wireless/pmsr.c
@@ -17,11 +17,19 @@ static int pmsr_parse_ftm(struct cfg80211_registered_device *rdev,
u32 preamble = NL80211_PREAMBLE_DMG; /* only optional in DMG */
/* validate existing data */
- if (!(rdev->wiphy.pmsr_capa->ftm.bandwidths & BIT(out->chandef.width))) {
+ if (!out->pd_request &&
+ !(rdev->wiphy.pmsr_capa->ftm.bandwidths & BIT(out->chandef.width))) {
NL_SET_ERR_MSG(info->extack, "FTM: unsupported bandwidth");
return -EINVAL;
}
+ if (out->pd_request &&
+ !(rdev->wiphy.pmsr_capa->ftm.pd_edca_bandwidths & BIT(out->chandef.width)) &&
+ !(rdev->wiphy.pmsr_capa->ftm.pd_ntb_bandwidths & BIT(out->chandef.width))) {
+ NL_SET_ERR_MSG(info->extack, "FTM: unsupported bandwidth for pd request");
+ return -EINVAL;
+ }
+
/* no validation needed - was already done via nested policy */
nla_parse_nested_deprecated(tb, NL80211_PMSR_FTM_REQ_ATTR_MAX, ftmreq,
NULL, NULL);
@@ -44,13 +52,22 @@ static int pmsr_parse_ftm(struct cfg80211_registered_device *rdev,
}
}
- if (!(capa->ftm.preambles & BIT(preamble))) {
+ if (!out->pd_request && !(capa->ftm.preambles & BIT(preamble))) {
NL_SET_ERR_MSG_ATTR(info->extack,
tb[NL80211_PMSR_FTM_REQ_ATTR_PREAMBLE],
"FTM: invalid preamble");
return -EINVAL;
}
+ if (out->pd_request &&
+ !(capa->ftm.pd_ntb_preambles & BIT(preamble)) &&
+ !(capa->ftm.pd_edca_preambles & BIT(preamble))) {
+ NL_SET_ERR_MSG_ATTR(info->extack,
+ tb[NL80211_PMSR_FTM_REQ_ATTR_PREAMBLE],
+ "FTM: invalid preamble for PD request");
+ return -EINVAL;
+ }
+
out->ftm.preamble = preamble;
out->ftm.burst_period = 0;
--
2.34.1
^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH wireless-next v2 12/16] wifi: cfg80211: add FTM range report negotiation support
2026-03-04 7:15 [PATCH wireless-next v2 00/16] wifi: Ranging support enhancements Peddolla Harshavardhan Reddy
` (10 preceding siblings ...)
2026-03-04 7:15 ` [PATCH wireless-next v2 11/16] wifi: cfg80211: add PD-specific preamble and bandwidth capabilities Peddolla Harshavardhan Reddy
@ 2026-03-04 7:15 ` Peddolla Harshavardhan Reddy
2026-03-04 7:15 ` [PATCH wireless-next v2 13/16] wifi: cfg80211: add result reporting control for PD requests Peddolla Harshavardhan Reddy
` (3 subsequent siblings)
15 siblings, 0 replies; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-04 7:15 UTC (permalink / raw)
To: johannes; +Cc: linux-wireless, kavita.kavita
Non-trigger based and trigger-based ranging use Location Measurement
Report for result exchange. EDCA-based ranging lacks an equivalent
mechanism to negotiate whether range measurement reports should be
exchanged after the FTM session.
Introduce FTM range report negotiation for EDCA-based ranging as
specified in "Proximity Ranging (PR) Implementation Consideration
Draft 1.9 Rev 1, section 5.2.2". Add a capability flag and request
attribute allowing devices to advertise support and applications
to request range reports for EDCA sessions.
Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com>
---
include/net/cfg80211.h | 8 +++++++-
include/uapi/linux/nl80211.h | 6 ++++++
net/wireless/nl80211.c | 4 ++++
net/wireless/pmsr.c | 18 ++++++++++++++++++
4 files changed, 35 insertions(+), 1 deletion(-)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 61651ecc3c9d..e398a594082a 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4446,6 +4446,8 @@ struct cfg80211_pmsr_result {
* to be indicated in case the device moves out of this range.
* (units mm, u64). measurement results need to be sent on a burst index
* basis in this case.
+ * @range_report: negotiate for FTM range report. Only valid for
+ * EDCA based ranging.
*
* See also nl80211 for the respective attribute documentation.
*/
@@ -4472,6 +4474,7 @@ struct cfg80211_pmsr_ftm_request_peer {
u32 measurements_per_aw;
u64 ingress_distancemm;
u64 egress_distancemm;
+ u8 range_report:1;
};
/**
@@ -5832,6 +5835,8 @@ cfg80211_get_iftype_ext_capa(struct wiphy *wiphy, enum nl80211_iftype type);
* @ftm.support_rsta: supports operating as RSTA in PMSR FTM request
* @ftm.support_edca_responder: supports operating as FTM responder in PMSR FTM
* request for EDCA-based ranging
+ * @ftm.support_range_report: capable of negotiating for FTM range report. Only
+ * valid for EDCA based ranging.
* @ftm.pd_edca_preambles: bitmap of preambles supported
* (&enum nl80211_preamble) in case of PD request with EDCA based
* initiator or responder role. ignored if @pd_support is not set.
@@ -5878,7 +5883,8 @@ struct cfg80211_pmsr_capabilities {
u32 min_allowed_ranging_interval_edca;
u32 min_allowed_ranging_interval_ntb;
u8 support_rsta:1,
- support_edca_responder:1;
+ support_edca_responder:1,
+ support_range_report:1;
u32 pd_edca_preambles;
u32 pd_ntb_preambles;
u32 pd_edca_bandwidths;
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index f064d6a260fb..a70dcb2aa111 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -7960,6 +7960,8 @@ enum nl80211_peer_measurement_attrs {
* Note that a higher channel bandwidth may be configured to allow for
* other measurements types with different bandwidth requirement in the
* same measurement.
+ * @NL80211_PMSR_FTM_CAPA_ATTR_RANGE_REPORT: flag indicating if range report
+ * negotiation and reporting is supported in case of EDCA based ranging.
*
* @NUM_NL80211_PMSR_FTM_CAPA_ATTR: internal
* @NL80211_PMSR_FTM_CAPA_ATTR_MAX: highest attribute number
@@ -7994,6 +7996,7 @@ enum nl80211_peer_measurement_ftm_capa {
NL80211_PMSR_FTM_CAPA_ATTR_PD_NTB_PREAMBLES,
NL80211_PMSR_FTM_CAPA_ATTR_PD_EDCA_BANDWIDTHS,
NL80211_PMSR_FTM_CAPA_ATTR_PD_NTB_BANDWIDTHS,
+ NL80211_PMSR_FTM_CAPA_ATTR_RANGE_REPORT,
/* keep last */
NUM_NL80211_PMSR_FTM_CAPA_ATTR,
@@ -8077,6 +8080,8 @@ enum nl80211_peer_measurement_ftm_capa {
* @NL80211_PMSR_FTM_REQ_ATTR_EGRESS: the measurement result of the peer needs
* to be indicated in case the device moves out of this range.
* (units mm, u64)
+ * @NL80211_PMSR_FTM_REQ_ATTR_RANGE_REPORT: Negotiate Range report in case of
+ * EDCA based ranging (flag).
*
* @NUM_NL80211_PMSR_FTM_REQ_ATTR: internal
* @NL80211_PMSR_FTM_REQ_ATTR_MAX: highest attribute number
@@ -8106,6 +8111,7 @@ enum nl80211_peer_measurement_ftm_req {
NL80211_PMSR_FTM_REQ_ATTR_PAD,
NL80211_PMSR_FTM_REQ_ATTR_INGRESS,
NL80211_PMSR_FTM_REQ_ATTR_EGRESS,
+ NL80211_PMSR_FTM_REQ_ATTR_RANGE_REPORT,
/* keep last */
NUM_NL80211_PMSR_FTM_REQ_ATTR,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 1deedb1c6c50..ea46c5e215ba 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -383,6 +383,7 @@ nl80211_pmsr_ftm_req_attr_policy[NL80211_PMSR_FTM_REQ_ATTR_MAX + 1] = {
[NL80211_PMSR_FTM_REQ_ATTR_MEAS_PER_AW] = NLA_POLICY_MAX(NLA_U32, 4),
[NL80211_PMSR_FTM_REQ_ATTR_INGRESS] = { .type = NLA_U64 },
[NL80211_PMSR_FTM_REQ_ATTR_EGRESS] = { .type = NLA_U64 },
+ [NL80211_PMSR_FTM_REQ_ATTR_RANGE_REPORT] = { .type = NLA_FLAG },
};
static const struct nla_policy
@@ -2424,6 +2425,9 @@ nl80211_send_pmsr_ftm_capa(const struct cfg80211_pmsr_capabilities *cap,
if (nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_PD_NTB_BANDWIDTHS,
cap->ftm.pd_ntb_bandwidths))
return -ENOBUFS;
+ if (cap->ftm.support_range_report &&
+ nla_put_flag(msg, NL80211_PMSR_FTM_CAPA_ATTR_RANGE_REPORT))
+ return -ENOBUFS;
nla_nest_end(msg, ftm);
return 0;
diff --git a/net/wireless/pmsr.c b/net/wireless/pmsr.c
index c4c027fc0b63..2b3d7d260e35 100644
--- a/net/wireless/pmsr.c
+++ b/net/wireless/pmsr.c
@@ -250,6 +250,24 @@ static int pmsr_parse_ftm(struct cfg80211_registered_device *rdev,
out->ftm.egress_distancemm =
nla_get_u64(tb[NL80211_PMSR_FTM_REQ_ATTR_EGRESS]);
+ out->ftm.range_report =
+ nla_get_flag(tb[NL80211_PMSR_FTM_REQ_ATTR_RANGE_REPORT]);
+
+ if (!capa->ftm.support_range_report && out->ftm.range_report) {
+ NL_SET_ERR_MSG_ATTR(info->extack,
+ tb[NL80211_PMSR_FTM_REQ_ATTR_RANGE_REPORT],
+ "FTM: Range report negotiation not supported");
+ return -EOPNOTSUPP;
+ }
+
+ if ((out->ftm.non_trigger_based || out->ftm.trigger_based) &&
+ out->ftm.range_report) {
+ NL_SET_ERR_MSG_ATTR(info->extack,
+ tb[NL80211_PMSR_FTM_REQ_ATTR_RANGE_REPORT],
+ "FTM: Range report request is not valid for TB/NTB ranging");
+ return -EINVAL;
+ }
+
return 0;
}
--
2.34.1
^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH wireless-next v2 13/16] wifi: cfg80211: add result reporting control for PD requests
2026-03-04 7:15 [PATCH wireless-next v2 00/16] wifi: Ranging support enhancements Peddolla Harshavardhan Reddy
` (11 preceding siblings ...)
2026-03-04 7:15 ` [PATCH wireless-next v2 12/16] wifi: cfg80211: add FTM range report negotiation support Peddolla Harshavardhan Reddy
@ 2026-03-04 7:15 ` Peddolla Harshavardhan Reddy
2026-03-04 7:15 ` [PATCH wireless-next v2 14/16] wifi: cfg80211: add MAC randomization support " Peddolla Harshavardhan Reddy
` (2 subsequent siblings)
15 siblings, 0 replies; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-04 7:15 UTC (permalink / raw)
To: johannes; +Cc: linux-wireless, kavita.kavita
Proximity detection applications may not need detailed ranging
measurements for every request, yet currently receive all results
causing unnecessary data transfer, host wakeups, and processing
overhead. Currently, there is no mechanism for applications to
suppress result reporting when only proximity detection is needed.
Introduce optional result suppression control that drivers can use
to implement selective result reporting. Add a flag allowing
applications to disable ranging reports when only proximity detection
is needed, enabling drivers to reduce unnecessary data transfer and
host wakeups. This flag cannot be combined with range report or LMR
feedback requests in RSTA mode as these require result reporting.
Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com>
---
include/net/cfg80211.h | 8 +++++++-
include/uapi/linux/nl80211.h | 7 +++++++
net/wireless/nl80211.c | 1 +
net/wireless/pmsr.c | 18 ++++++++++++++++++
4 files changed, 33 insertions(+), 1 deletion(-)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index e398a594082a..8dc2ccafb88b 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -4448,6 +4448,11 @@ struct cfg80211_pmsr_result {
* basis in this case.
* @range_report: negotiate for FTM range report. Only valid for
* EDCA based ranging.
+ * @pd_suppress_range_results: flag to suppress ranging results for PD
+ * requests. When set, ranging measurements are performed but results
+ * are not reported to userspace, regardless of ranging role or type.
+ * Only valid when @pd_request is set. Cannot be used with @range_report
+ * or @lmr_feedback as these require result reporting.
*
* See also nl80211 for the respective attribute documentation.
*/
@@ -4474,7 +4479,8 @@ struct cfg80211_pmsr_ftm_request_peer {
u32 measurements_per_aw;
u64 ingress_distancemm;
u64 egress_distancemm;
- u8 range_report:1;
+ u8 range_report:1,
+ pd_suppress_range_results:1;
};
/**
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index a70dcb2aa111..cafa73280758 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -8082,6 +8082,12 @@ enum nl80211_peer_measurement_ftm_capa {
* (units mm, u64)
* @NL80211_PMSR_FTM_REQ_ATTR_RANGE_REPORT: Negotiate Range report in case of
* EDCA based ranging (flag).
+ * @NL80211_PMSR_FTM_REQ_ATTR_PD_SUPPRESS_RESULTS: Flag to suppress ranging
+ * results for PD requests. When set, ranging measurements are performed
+ * but results are not reported to userspace, regardless of ranging role
+ * or type. Only valid when %NL80211_PMSR_PEER_ATTR_PD_REQUEST is set.
+ * Cannot be used with %NL80211_PMSR_FTM_REQ_ATTR_RANGE_REPORT or
+ * %NL80211_PMSR_FTM_REQ_ATTR_LMR_FEEDBACK as these require result reporting.
*
* @NUM_NL80211_PMSR_FTM_REQ_ATTR: internal
* @NL80211_PMSR_FTM_REQ_ATTR_MAX: highest attribute number
@@ -8112,6 +8118,7 @@ enum nl80211_peer_measurement_ftm_req {
NL80211_PMSR_FTM_REQ_ATTR_INGRESS,
NL80211_PMSR_FTM_REQ_ATTR_EGRESS,
NL80211_PMSR_FTM_REQ_ATTR_RANGE_REPORT,
+ NL80211_PMSR_FTM_REQ_ATTR_PD_SUPPRESS_RESULTS,
/* keep last */
NUM_NL80211_PMSR_FTM_REQ_ATTR,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index ea46c5e215ba..02e7c9f9b12f 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -384,6 +384,7 @@ nl80211_pmsr_ftm_req_attr_policy[NL80211_PMSR_FTM_REQ_ATTR_MAX + 1] = {
[NL80211_PMSR_FTM_REQ_ATTR_INGRESS] = { .type = NLA_U64 },
[NL80211_PMSR_FTM_REQ_ATTR_EGRESS] = { .type = NLA_U64 },
[NL80211_PMSR_FTM_REQ_ATTR_RANGE_REPORT] = { .type = NLA_FLAG },
+ [NL80211_PMSR_FTM_REQ_ATTR_PD_SUPPRESS_RESULTS] = { .type = NLA_FLAG },
};
static const struct nla_policy
diff --git a/net/wireless/pmsr.c b/net/wireless/pmsr.c
index 2b3d7d260e35..2897876e45b2 100644
--- a/net/wireless/pmsr.c
+++ b/net/wireless/pmsr.c
@@ -268,6 +268,24 @@ static int pmsr_parse_ftm(struct cfg80211_registered_device *rdev,
return -EINVAL;
}
+ out->ftm.pd_suppress_range_results =
+ nla_get_flag(tb[NL80211_PMSR_FTM_REQ_ATTR_PD_SUPPRESS_RESULTS]);
+
+ if (!out->pd_request && out->ftm.pd_suppress_range_results) {
+ NL_SET_ERR_MSG_ATTR(info->extack,
+ tb[NL80211_PMSR_FTM_REQ_ATTR_PD_SUPPRESS_RESULTS],
+ "FTM: suppress range result flag only valid for PD requests");
+ return -EINVAL;
+ }
+
+ if (out->ftm.pd_suppress_range_results && out->ftm.rsta &&
+ (out->ftm.range_report || out->ftm.lmr_feedback)) {
+ NL_SET_ERR_MSG_ATTR(info->extack,
+ tb[NL80211_PMSR_FTM_REQ_ATTR_PD_SUPPRESS_RESULTS],
+ "FTM: cannot report with suppressed results");
+ return -EINVAL;
+ }
+
return 0;
}
--
2.34.1
^ permalink raw reply related [flat|nested] 27+ messages in thread* [PATCH wireless-next v2 14/16] wifi: cfg80211: add MAC randomization support for PD requests
2026-03-04 7:15 [PATCH wireless-next v2 00/16] wifi: Ranging support enhancements Peddolla Harshavardhan Reddy
` (12 preceding siblings ...)
2026-03-04 7:15 ` [PATCH wireless-next v2 13/16] wifi: cfg80211: add result reporting control for PD requests Peddolla Harshavardhan Reddy
@ 2026-03-04 7:15 ` Peddolla Harshavardhan Reddy
2026-03-04 11:56 ` Johannes Berg
2026-03-04 7:15 ` [PATCH wireless-next v2 15/16] wifi: cfg80211: add LTF keyseed support for secure ranging Peddolla Harshavardhan Reddy
2026-03-04 7:15 ` [PATCH wireless-next v2 16/16] wifi: mac80211_hwsim: Add support for extended FTM ranging Peddolla Harshavardhan Reddy
15 siblings, 1 reply; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-04 7:15 UTC (permalink / raw)
To: johannes; +Cc: linux-wireless, kavita.kavita
Enable MAC address randomization for proximity detection requests to
maintain privacy throughout the entire PD session workflow. When
enabled, use the same randomized MAC address for discovery,
authentication, and ranging measurements, ensuring consistent identity
protection across all phases.
Add a capability flag for devices to advertise PD MAC randomization
support and validate that randomization is only requested when the
device supports it. This ensures consistent MAC address usage across
all phases of proximity detection while preventing invalid
configurations where randomization is requested but not supported by
hardware.
Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com>
---
include/net/cfg80211.h | 7 ++++++-
include/uapi/linux/nl80211.h | 6 ++++++
net/wireless/nl80211.c | 8 ++++++++
net/wireless/pmsr.c | 10 ++++++++++
4 files changed, 30 insertions(+), 1 deletion(-)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 8dc2ccafb88b..6f7abb118a27 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -5794,6 +5794,10 @@ cfg80211_get_iftype_ext_capa(struct wiphy *wiphy, enum nl80211_iftype type);
* multi-peer request this will indicate if the device can act
* simultaneously as initiator and a responder. Only valid if @pd_support
* is set.
+ * @pd_randomize_mac_addr_conn: flag attribute in capability indicating that MAC
+ * address randomization is supported in connected state for PD request.
+ * if capable the MAC address used for discovery, authentication will be
+ * used for ranging too. only valid if @pd_support is set
* @pd_max_peer_ista_role: Maximum number of peers allowed for a device
* operating in the ISTA role under proximity detection. Only valid if
* @pd_support is set. Sum of both @pd_max_peer_ista_role and
@@ -5861,7 +5865,8 @@ struct cfg80211_pmsr_capabilities {
u8 report_ap_tsf:1,
randomize_mac_addr:1,
pd_support:1,
- pd_concurrent_ista_rsta_support:1;
+ pd_concurrent_ista_rsta_support:1,
+ pd_randomize_mac_addr_conn:1;
u32 pd_max_peer_ista_role;
u32 pd_max_peer_rsta_role;
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index cafa73280758..9c647c184e7f 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -7855,6 +7855,11 @@ enum nl80211_peer_measurement_peer_attrs {
* %NL80211_PMSR_ATTR_PD_MAX_PEER_ISTA_ROLE and
* %NL80211_PMSR_ATTR_PD_MAX_PEER_RSTA_ROLE is considered to enforce the
* max peers supported in case the request is of peer-to-peer PD type
+ * @NL80211_PMSR_ATTR_PD_RANDOMIZE_MAC_ADDR_CONNECTED: flag attribute in
+ * capability indicating that MAC address randomization is supported for
+ * PD request in connected state. if capable the MAC address used for
+ * discovery, authentication will be used for ranging too. only valid if
+ * %NL80211_PMSR_ATTR_PD_SUPPORT is set
*
* @NUM_NL80211_PMSR_ATTR: internal
* @NL80211_PMSR_ATTR_MAX: highest attribute number
@@ -7871,6 +7876,7 @@ enum nl80211_peer_measurement_attrs {
NL80211_PMSR_ATTR_PD_CONCURRENT_ISTA_RSTA_SUPPORT,
NL80211_PMSR_ATTR_PD_MAX_PEER_ISTA_ROLE,
NL80211_PMSR_ATTR_PD_MAX_PEER_RSTA_ROLE,
+ NL80211_PMSR_ATTR_PD_RANDOMIZE_MAC_ADDR_CONNECTED,
/* keep last */
NUM_NL80211_PMSR_ATTR,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 02e7c9f9b12f..281a15226edb 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -424,6 +424,9 @@ nl80211_pmsr_attr_policy[NL80211_PMSR_ATTR_MAX + 1] = {
},
[NL80211_PMSR_ATTR_PD_MAX_PEER_ISTA_ROLE] = { .type = NLA_REJECT },
[NL80211_PMSR_ATTR_PD_MAX_PEER_RSTA_ROLE] = { .type = NLA_REJECT },
+ [NL80211_PMSR_ATTR_PD_RANDOMIZE_MAC_ADDR_CONNECTED] = {
+ .type = NLA_REJECT
+ },
};
static const struct nla_policy
@@ -2481,6 +2484,11 @@ static int nl80211_send_pmsr_capa(struct cfg80211_registered_device *rdev,
nla_put_u32(msg, NL80211_PMSR_ATTR_PD_MAX_PEER_RSTA_ROLE,
cap->pd_max_peer_rsta_role))
return -ENOBUFS;
+
+ if (cap->pd_randomize_mac_addr_conn &&
+ nla_put_flag(msg,
+ NL80211_PMSR_ATTR_PD_RANDOMIZE_MAC_ADDR_CONNECTED))
+ return -ENOBUFS;
}
caps = nla_nest_start_noflag(msg, NL80211_PMSR_ATTR_TYPE_CAPA);
if (!caps)
diff --git a/net/wireless/pmsr.c b/net/wireless/pmsr.c
index 2897876e45b2..b5e8af89c57e 100644
--- a/net/wireless/pmsr.c
+++ b/net/wireless/pmsr.c
@@ -383,6 +383,7 @@ int nl80211_pmsr_start(struct sk_buff *skb, struct genl_info *info)
const struct cfg80211_pmsr_capabilities *capa;
struct cfg80211_pmsr_request *req;
struct nlattr *peers, *peer;
+ bool use_random_mac = false;
capa = rdev->wiphy.pmsr_capa;
@@ -429,6 +430,7 @@ int nl80211_pmsr_start(struct sk_buff *skb, struct genl_info *info)
req->mac_addr_mask);
if (err)
goto out_err;
+ use_random_mac = true;
} else {
memcpy(req->mac_addr, wdev_address(wdev), ETH_ALEN);
eth_broadcast_addr(req->mac_addr_mask);
@@ -460,6 +462,14 @@ int nl80211_pmsr_start(struct sk_buff *skb, struct genl_info *info)
err = -EINVAL;
goto out_err;
}
+
+ if (use_random_mac &&
+ !capa->pd_randomize_mac_addr_conn) {
+ NL_SET_ERR_MSG(info->extack,
+ "PD mac randomization not supported");
+ err = -EINVAL;
+ goto out_err;
+ }
}
}
}
--
2.34.1
^ permalink raw reply related [flat|nested] 27+ messages in thread* Re: [PATCH wireless-next v2 14/16] wifi: cfg80211: add MAC randomization support for PD requests
2026-03-04 7:15 ` [PATCH wireless-next v2 14/16] wifi: cfg80211: add MAC randomization support " Peddolla Harshavardhan Reddy
@ 2026-03-04 11:56 ` Johannes Berg
2026-03-05 15:42 ` Peddolla Harshavardhan Reddy
0 siblings, 1 reply; 27+ messages in thread
From: Johannes Berg @ 2026-03-04 11:56 UTC (permalink / raw)
To: Peddolla Harshavardhan Reddy; +Cc: linux-wireless, kavita.kavita
On Wed, 2026-03-04 at 12:45 +0530, Peddolla Harshavardhan Reddy wrote:
> Enable MAC address randomization for proximity detection requests to
> maintain privacy throughout the entire PD session workflow. When
> enabled, use the same randomized MAC address for discovery,
> authentication, and ranging measurements, ensuring consistent identity
> protection across all phases.
>
> Add a capability flag for devices to advertise PD MAC randomization
> support and validate that randomization is only requested when the
> device supports it. This ensures consistent MAC address usage across
> all phases of proximity detection while preventing invalid
> configurations where randomization is requested but not supported by
> hardware.
Doesn't this basically also require NL80211_EXT_FEATURE_ROC_ADDR_FILTER
for the setup? If so, maybe some check (core.c?) should validate that
you don't have PD MAC randomization without it?
johannes
^ permalink raw reply [flat|nested] 27+ messages in thread
* Re: [PATCH wireless-next v2 14/16] wifi: cfg80211: add MAC randomization support for PD requests
2026-03-04 11:56 ` Johannes Berg
@ 2026-03-05 15:42 ` Peddolla Harshavardhan Reddy
0 siblings, 0 replies; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-05 15:42 UTC (permalink / raw)
To: Johannes Berg; +Cc: linux-wireless, kavita.kavita
On 04-Mar-26 5:26 PM, Johannes Berg wrote:
> On Wed, 2026-03-04 at 12:45 +0530, Peddolla Harshavardhan Reddy wrote:
>> Enable MAC address randomization for proximity detection requests to
>> maintain privacy throughout the entire PD session workflow. When
>> enabled, use the same randomized MAC address for discovery,
>> authentication, and ranging measurements, ensuring consistent identity
>> protection across all phases.
>>
>> Add a capability flag for devices to advertise PD MAC randomization
>> support and validate that randomization is only requested when the
>> device supports it. This ensures consistent MAC address usage across
>> all phases of proximity detection while preventing invalid
>> configurations where randomization is requested but not supported by
>> hardware.
> Doesn't this basically also require NL80211_EXT_FEATURE_ROC_ADDR_FILTER
> for the setup? If so, maybe some check (core.c?) should validate that
> you don't have PD MAC randomization without it?
>
> johannes
Will drop this patch as we would be creating a new wdev of PD type with a valid random mac address anyway.
^ permalink raw reply [flat|nested] 27+ messages in thread
* [PATCH wireless-next v2 15/16] wifi: cfg80211: add LTF keyseed support for secure ranging
2026-03-04 7:15 [PATCH wireless-next v2 00/16] wifi: Ranging support enhancements Peddolla Harshavardhan Reddy
` (13 preceding siblings ...)
2026-03-04 7:15 ` [PATCH wireless-next v2 14/16] wifi: cfg80211: add MAC randomization support " Peddolla Harshavardhan Reddy
@ 2026-03-04 7:15 ` Peddolla Harshavardhan Reddy
2026-03-04 12:03 ` Johannes Berg
2026-03-04 7:15 ` [PATCH wireless-next v2 16/16] wifi: mac80211_hwsim: Add support for extended FTM ranging Peddolla Harshavardhan Reddy
15 siblings, 1 reply; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-04 7:15 UTC (permalink / raw)
To: johannes; +Cc: linux-wireless, kavita.kavita
Introduce NL80211_KEY_LTF_SEED attribute to enable secure FTM
measurements with PHY-layer security. This allows drivers to generate
secure LTF keys for ranging operations, protecting against
eavesdropping and manipulation of ranging measurements.
Support the keyseed with trigger-based and non-trigger-based FTM
requests to enable secure peer measurement sessions. The keyseed must
be configured before initiating the measurement session to ensure
end-to-end security throughout the ranging operation.
Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com>
---
include/net/cfg80211.h | 4 ++++
include/uapi/linux/nl80211.h | 16 +++++++++++++---
net/wireless/nl80211.c | 10 ++++++++++
3 files changed, 27 insertions(+), 3 deletions(-)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 6f7abb118a27..ac69cb200c0f 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -830,6 +830,8 @@ struct vif_params {
* @seq_len: length of @seq.
* @vlan_id: vlan_id for VLAN group key (if nonzero)
* @mode: key install mode (RX_TX, NO_TX or SET_TX)
+ * @ltf_keyseed: LTF key seed material
+ * @ltf_keyseed_len: length of LTF key seed material
*/
struct key_params {
const u8 *key;
@@ -839,6 +841,8 @@ struct key_params {
u16 vlan_id;
u32 cipher;
enum nl80211_key_mode mode;
+ const u8 *ltf_keyseed;
+ size_t ltf_keyseed_len;
};
/**
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 9c647c184e7f..0ae56bd66e7e 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -395,9 +395,10 @@
* %NL80211_ATTR_MLO_LINK_ID.
* @NL80211_CMD_NEW_KEY: add a key with given %NL80211_ATTR_KEY_DATA,
* %NL80211_ATTR_KEY_IDX, %NL80211_ATTR_MAC, %NL80211_ATTR_KEY_CIPHER,
- * and %NL80211_ATTR_KEY_SEQ attributes. %NL80211_ATTR_MAC represents
- * peer's MLD address for MLO pairwise key. The link to add MLO
- * group key is identified by %NL80211_ATTR_MLO_LINK_ID.
+ * %NL80211_ATTR_KEY_SEQ and %NL80211_KEY_LTF_SEED attributes.
+ * %NL80211_ATTR_MAC represents peer's MLD address for MLO pairwise key.
+ * The link to add MLO group key is identified by
+ * %NL80211_ATTR_MLO_LINK_ID.
* @NL80211_CMD_DEL_KEY: delete a key identified by %NL80211_ATTR_KEY_IDX
* or %NL80211_ATTR_MAC. %NL80211_ATTR_MAC represents peer's MLD address
* for MLO pairwise key. The link to delete group key is identified by
@@ -5602,6 +5603,14 @@ enum nl80211_key_default_types {
* @NL80211_KEY_MODE: the mode from enum nl80211_key_mode.
* Defaults to @NL80211_KEY_RX_TX.
* @NL80211_KEY_DEFAULT_BEACON: flag indicating default Beacon frame key
+ * @NL80211_KEY_LTF_SEED: LTF key seed is used by the driver to generate
+ * secure LTF keys used in case of peer measurement request with FTM
+ * request type as either %NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED
+ * or %NL80211_PMSR_FTM_REQ_ATTR_TRIGGER_BASED, secure LTF key seeds will
+ * help enable PHY security in peer measurement session. The corresponding
+ * keys need to be configured before hand to ensure peer measurement
+ * session is secure. Only valid if %NL80211_EXT_FEATURE_SECURE_LTF
+ * is set.
*
* @__NL80211_KEY_AFTER_LAST: internal
* @NL80211_KEY_MAX: highest key attribute
@@ -5618,6 +5627,7 @@ enum nl80211_key_attributes {
NL80211_KEY_DEFAULT_TYPES,
NL80211_KEY_MODE,
NL80211_KEY_DEFAULT_BEACON,
+ NL80211_KEY_LTF_SEED,
/* keep last */
__NL80211_KEY_AFTER_LAST,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 281a15226edb..68bf941122ae 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -983,6 +983,7 @@ static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
[NL80211_KEY_TYPE] = NLA_POLICY_MAX(NLA_U32, NUM_NL80211_KEYTYPES - 1),
[NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
[NL80211_KEY_MODE] = NLA_POLICY_RANGE(NLA_U8, 0, NL80211_KEY_SET_TX),
+ [NL80211_KEY_LTF_SEED] = { .type = NLA_BINARY, .len = 48 },
};
/* policy for the key default flags */
@@ -1459,6 +1460,7 @@ struct key_parse {
static int nl80211_parse_key_new(struct genl_info *info, struct nlattr *key,
struct key_parse *k)
{
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct nlattr *tb[NL80211_KEY_MAX + 1];
int err = nla_parse_nested_deprecated(tb, NL80211_KEY_MAX, key,
nl80211_key_policy,
@@ -1514,6 +1516,14 @@ static int nl80211_parse_key_new(struct genl_info *info, struct nlattr *key,
if (tb[NL80211_KEY_MODE])
k->p.mode = nla_get_u8(tb[NL80211_KEY_MODE]);
+ if (tb[NL80211_KEY_LTF_SEED]) {
+ if (!wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_SECURE_LTF))
+ return -EOPNOTSUPP;
+ k->p.ltf_keyseed = nla_data(tb[NL80211_KEY_LTF_SEED]);
+ k->p.ltf_keyseed_len = nla_len(tb[NL80211_KEY_LTF_SEED]);
+ }
+
return 0;
}
--
2.34.1
^ permalink raw reply related [flat|nested] 27+ messages in thread* Re: [PATCH wireless-next v2 15/16] wifi: cfg80211: add LTF keyseed support for secure ranging
2026-03-04 7:15 ` [PATCH wireless-next v2 15/16] wifi: cfg80211: add LTF keyseed support for secure ranging Peddolla Harshavardhan Reddy
@ 2026-03-04 12:03 ` Johannes Berg
2026-03-05 15:48 ` Peddolla Harshavardhan Reddy
0 siblings, 1 reply; 27+ messages in thread
From: Johannes Berg @ 2026-03-04 12:03 UTC (permalink / raw)
To: Peddolla Harshavardhan Reddy; +Cc: linux-wireless, kavita.kavita
On Wed, 2026-03-04 at 12:45 +0530, Peddolla Harshavardhan Reddy wrote:
>
> * @NL80211_CMD_NEW_KEY: add a key with given %NL80211_ATTR_KEY_DATA,
> * %NL80211_ATTR_KEY_IDX, %NL80211_ATTR_MAC, %NL80211_ATTR_KEY_CIPHER,
> - * and %NL80211_ATTR_KEY_SEQ attributes. %NL80211_ATTR_MAC represents
> - * peer's MLD address for MLO pairwise key. The link to add MLO
> - * group key is identified by %NL80211_ATTR_MLO_LINK_ID.
> + * %NL80211_ATTR_KEY_SEQ and %NL80211_KEY_LTF_SEED attributes.
> + * %NL80211_ATTR_MAC represents peer's MLD address for MLO pairwise key.
> + * The link to add MLO group key is identified by
> + * %NL80211_ATTR_MLO_LINK_ID.
I think this is a bit misleading since it mixes up the key attributes
now. I think at this level it should refer to %NL80211_ATTR_KEY instead
of the specific nested %NL80211_KEY_LTF_SEED.
> * @NL80211_CMD_DEL_KEY: delete a key identified by %NL80211_ATTR_KEY_IDX
> * or %NL80211_ATTR_MAC. %NL80211_ATTR_MAC represents peer's MLD address
> * for MLO pairwise key. The link to delete group key is identified by
> @@ -5602,6 +5603,14 @@ enum nl80211_key_default_types {
> * @NL80211_KEY_MODE: the mode from enum nl80211_key_mode.
> * Defaults to @NL80211_KEY_RX_TX.
> * @NL80211_KEY_DEFAULT_BEACON: flag indicating default Beacon frame key
> + * @NL80211_KEY_LTF_SEED: LTF key seed is used by the driver to generate
> + * secure LTF keys used in case of peer measurement request with FTM
> + * request type as either %NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED
> + * or %NL80211_PMSR_FTM_REQ_ATTR_TRIGGER_BASED, secure LTF key seeds will
> + * help enable PHY security in peer measurement session. The corresponding
> + * keys need to be configured before hand to ensure peer measurement
"beforehand"
> + * session is secure. Only valid if %NL80211_EXT_FEATURE_SECURE_LTF
> + * is set.
NL80211_EXT_FEATURE_SECURE_LTF already exists today, and is set by
iwlwifi/mvm, so I'm not convinced you can just redefine it to mean also
LTF key seed is supported?
> +++ b/net/wireless/nl80211.c
> @@ -983,6 +983,7 @@ static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
> [NL80211_KEY_TYPE] = NLA_POLICY_MAX(NLA_U32, NUM_NL80211_KEYTYPES - 1),
> [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
> [NL80211_KEY_MODE] = NLA_POLICY_RANGE(NLA_U8, 0, NL80211_KEY_SET_TX),
> + [NL80211_KEY_LTF_SEED] = { .type = NLA_BINARY, .len = 48 },
This probably doesn't do what you think it does, unless you really
wanted that it's *at most* 48 bytes. And please add a define in
ieee80211.h for that.
johannes
^ permalink raw reply [flat|nested] 27+ messages in thread* Re: [PATCH wireless-next v2 15/16] wifi: cfg80211: add LTF keyseed support for secure ranging
2026-03-04 12:03 ` Johannes Berg
@ 2026-03-05 15:48 ` Peddolla Harshavardhan Reddy
0 siblings, 0 replies; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-05 15:48 UTC (permalink / raw)
To: Johannes Berg; +Cc: linux-wireless, kavita.kavita
On 04-Mar-26 5:33 PM, Johannes Berg wrote:
> On Wed, 2026-03-04 at 12:45 +0530, Peddolla Harshavardhan Reddy wrote:
>> * @NL80211_CMD_NEW_KEY: add a key with given %NL80211_ATTR_KEY_DATA,
>> * %NL80211_ATTR_KEY_IDX, %NL80211_ATTR_MAC, %NL80211_ATTR_KEY_CIPHER,
>> - * and %NL80211_ATTR_KEY_SEQ attributes. %NL80211_ATTR_MAC represents
>> - * peer's MLD address for MLO pairwise key. The link to add MLO
>> - * group key is identified by %NL80211_ATTR_MLO_LINK_ID.
>> + * %NL80211_ATTR_KEY_SEQ and %NL80211_KEY_LTF_SEED attributes.
>> + * %NL80211_ATTR_MAC represents peer's MLD address for MLO pairwise key.
>> + * The link to add MLO group key is identified by
>> + * %NL80211_ATTR_MLO_LINK_ID.
> I think this is a bit misleading since it mixes up the key attributes
> now. I think at this level it should refer to %NL80211_ATTR_KEY instead
> of the specific nested %NL80211_KEY_LTF_SEED.
Sure, will remove this.
>
>> * @NL80211_CMD_DEL_KEY: delete a key identified by %NL80211_ATTR_KEY_IDX
>> * or %NL80211_ATTR_MAC. %NL80211_ATTR_MAC represents peer's MLD address
>> * for MLO pairwise key. The link to delete group key is identified by
>> @@ -5602,6 +5603,14 @@ enum nl80211_key_default_types {
>> * @NL80211_KEY_MODE: the mode from enum nl80211_key_mode.
>> * Defaults to @NL80211_KEY_RX_TX.
>> * @NL80211_KEY_DEFAULT_BEACON: flag indicating default Beacon frame key
>> + * @NL80211_KEY_LTF_SEED: LTF key seed is used by the driver to generate
>> + * secure LTF keys used in case of peer measurement request with FTM
>> + * request type as either %NL80211_PMSR_FTM_REQ_ATTR_NON_TRIGGER_BASED
>> + * or %NL80211_PMSR_FTM_REQ_ATTR_TRIGGER_BASED, secure LTF key seeds will
>> + * help enable PHY security in peer measurement session. The corresponding
>> + * keys need to be configured before hand to ensure peer measurement
> "beforehand"
will fix it in the next version.
>> + * session is secure. Only valid if %NL80211_EXT_FEATURE_SECURE_LTF
>> + * is set.
> NL80211_EXT_FEATURE_SECURE_LTF already exists today, and is set by
> iwlwifi/mvm, so I'm not convinced you can just redefine it to mean also
> LTF key seed is supported?
will use a new extended feature flag along with NL80211_EXT_FEATURE_SECURE_LTF to resolve this.
would that be an fine ?
>> +++ b/net/wireless/nl80211.c
>> @@ -983,6 +983,7 @@ static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
>> [NL80211_KEY_TYPE] = NLA_POLICY_MAX(NLA_U32, NUM_NL80211_KEYTYPES - 1),
>> [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
>> [NL80211_KEY_MODE] = NLA_POLICY_RANGE(NLA_U8, 0, NL80211_KEY_SET_TX),
>> + [NL80211_KEY_LTF_SEED] = { .type = NLA_BINARY, .len = 48 },
> This probably doesn't do what you think it does, unless you really
> wanted that it's *at most* 48 bytes. And please add a define in
> ieee80211.h for that.
>
> johannes
will fix it in the next version. Thanks.
^ permalink raw reply [flat|nested] 27+ messages in thread
* [PATCH wireless-next v2 16/16] wifi: mac80211_hwsim: Add support for extended FTM ranging
2026-03-04 7:15 [PATCH wireless-next v2 00/16] wifi: Ranging support enhancements Peddolla Harshavardhan Reddy
` (14 preceding siblings ...)
2026-03-04 7:15 ` [PATCH wireless-next v2 15/16] wifi: cfg80211: add LTF keyseed support for secure ranging Peddolla Harshavardhan Reddy
@ 2026-03-04 7:15 ` Peddolla Harshavardhan Reddy
15 siblings, 0 replies; 27+ messages in thread
From: Peddolla Harshavardhan Reddy @ 2026-03-04 7:15 UTC (permalink / raw)
To: johannes; +Cc: linux-wireless, kavita.kavita
From: Kavita Kavita <kavita.kavita@oss.qualcomm.com>
Introduce support for continuous ranging and advanced timing parameters
in the FTM (Fine Timing Measurement) request, response, and capability
paths. This enables more flexible ranging scenarios with improved
control over measurement timing and session management.
Signed-off-by: Kavita Kavita <kavita.kavita@oss.qualcomm.com>
Signed-off-by: Peddolla Harshavardhan Reddy <peddolla.reddy@oss.qualcomm.com>
---
drivers/net/wireless/virtual/mac80211_hwsim.c | 171 ++++++++++++++++++
1 file changed, 171 insertions(+)
diff --git a/drivers/net/wireless/virtual/mac80211_hwsim.c b/drivers/net/wireless/virtual/mac80211_hwsim.c
index 475918ee8132..12257797f29d 100644
--- a/drivers/net/wireless/virtual/mac80211_hwsim.c
+++ b/drivers/net/wireless/virtual/mac80211_hwsim.c
@@ -844,6 +844,18 @@ hwsim_ftm_result_policy[NL80211_PMSR_FTM_RESP_ATTR_MAX + 1] = {
[NL80211_PMSR_FTM_RESP_ATTR_DIST_SPREAD] = { .type = NLA_U64 },
[NL80211_PMSR_FTM_RESP_ATTR_LCI] = { .type = NLA_STRING },
[NL80211_PMSR_FTM_RESP_ATTR_CIVICLOC] = { .type = NLA_STRING },
+ [NL80211_PMSR_FTM_RESP_ATTR_TX_LTF_REPETITION_COUNT] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_RESP_ATTR_RX_LTF_REPETITION_COUNT] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_RESP_ATTR_MAX_TIME_BETWEEN_MEASUREMENTS] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_RESP_ATTR_MIN_TIME_BETWEEN_MEASUREMENTS] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_RESP_ATTR_NUM_TX_SPATIAL_STREAMS] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_RESP_ATTR_NUM_RX_SPATIAL_STREAMS] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_RESP_ATTR_NOMINAL_TIME] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_RESP_ATTR_AVAILABILITY_WINDOW] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_RESP_ATTR_MEASUREMENTS_PER_AW] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_RESP_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_RESP_ATTR_PREAMBLE] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_RESP_ATTR_IS_DELAYED_LMR] = { .type = NLA_FLAG },
};
static const struct nla_policy
@@ -889,6 +901,16 @@ hwsim_ftm_capa_policy[NL80211_PMSR_FTM_CAPA_ATTR_MAX + 1] = {
[NL80211_PMSR_FTM_CAPA_ATTR_MAX_FTMS_PER_BURST] = NLA_POLICY_MAX(NLA_U8, 31),
[NL80211_PMSR_FTM_CAPA_ATTR_TRIGGER_BASED] = { .type = NLA_FLAG },
[NL80211_PMSR_FTM_CAPA_ATTR_NON_TRIGGER_BASED] = { .type = NLA_FLAG },
+ [NL80211_PMSR_FTM_CAPA_ATTR_EDCA_BASED_RESPONDER] = { .type = NLA_FLAG },
+ [NL80211_PMSR_FTM_CAPA_ATTR_MAX_NUM_TX_ANTENNAS] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_CAPA_ATTR_MAX_NUM_RX_ANTENNAS] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_CAPA_ATTR_MIN_INTERVAL_EDCA] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_CAPA_ATTR_MIN_INTERVAL_NTB] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_CAPA_ATTR_PD_EDCA_PREAMBLES] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_CAPA_ATTR_PD_NTB_PREAMBLES] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_CAPA_ATTR_PD_EDCA_BANDWIDTHS] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_CAPA_ATTR_PD_NTB_BANDWIDTHS] = { .type = NLA_U32 },
+ [NL80211_PMSR_FTM_CAPA_ATTR_RANGE_REPORT] = { .type = NLA_FLAG },
};
static const struct nla_policy
@@ -903,6 +925,15 @@ hwsim_pmsr_capa_policy[NL80211_PMSR_ATTR_MAX + 1] = {
[NL80211_PMSR_ATTR_RANDOMIZE_MAC_ADDR] = { .type = NLA_FLAG },
[NL80211_PMSR_ATTR_TYPE_CAPA] = NLA_POLICY_NESTED(hwsim_pmsr_capa_type_policy),
[NL80211_PMSR_ATTR_PEERS] = { .type = NLA_REJECT }, // only for request.
+ [NL80211_PMSR_ATTR_PD_SUPPORT] = { .type = NLA_FLAG },
+ [NL80211_PMSR_ATTR_PD_CONCURRENT_ISTA_RSTA_SUPPORT] = {
+ .type = NLA_FLAG
+ },
+ [NL80211_PMSR_ATTR_PD_MAX_PEER_ISTA_ROLE] = { .type = NLA_U32 },
+ [NL80211_PMSR_ATTR_PD_MAX_PEER_RSTA_ROLE] = { .type = NLA_U32 },
+ [NL80211_PMSR_ATTR_PD_RANDOMIZE_MAC_ADDR_CONNECTED] = {
+ .type = NLA_FLAG
+ },
};
static const struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = {
@@ -3561,6 +3592,49 @@ static int mac80211_hwsim_send_pmsr_ftm_request_peer(struct sk_buff *msg,
if (nla_put_u8(msg, NL80211_PMSR_FTM_REQ_ATTR_BSS_COLOR, request->bss_color))
return -ENOBUFS;
+ if (request->min_time_between_measurements &&
+ nla_put_u32(msg, NL80211_PMSR_FTM_REQ_ATTR_MIN_TIME_BETWEEN_MEASUREMENTS,
+ request->min_time_between_measurements))
+ return -ENOBUFS;
+
+ if (request->max_time_between_measurements &&
+ nla_put_u32(msg, NL80211_PMSR_FTM_REQ_ATTR_MAX_TIME_BETWEEN_MEASUREMENTS,
+ request->max_time_between_measurements))
+ return -ENOBUFS;
+
+ if (request->availability_window &&
+ nla_put_u32(msg, NL80211_PMSR_FTM_REQ_ATTR_AW_DURATION,
+ request->availability_window))
+ return -ENOBUFS;
+
+ if (request->nominal_time &&
+ nla_put_u32(msg, NL80211_PMSR_FTM_REQ_ATTR_NOMINAL_TIME,
+ request->nominal_time))
+ return -ENOBUFS;
+
+ if (request->measurements_per_aw &&
+ nla_put_u32(msg, NL80211_PMSR_FTM_REQ_ATTR_MEAS_PER_AW,
+ request->measurements_per_aw))
+ return -ENOBUFS;
+
+ if (request->ingress_distancemm &&
+ nla_put_u64_64bit(msg, NL80211_PMSR_FTM_REQ_ATTR_INGRESS,
+ request->ingress_distancemm, NL80211_PMSR_FTM_REQ_ATTR_PAD))
+ return -ENOBUFS;
+
+ if (request->egress_distancemm &&
+ nla_put_u64_64bit(msg, NL80211_PMSR_FTM_REQ_ATTR_EGRESS,
+ request->egress_distancemm, NL80211_PMSR_FTM_REQ_ATTR_PAD))
+ return -ENOBUFS;
+
+ if (request->range_report &&
+ nla_put_flag(msg, NL80211_PMSR_FTM_REQ_ATTR_RANGE_REPORT))
+ return -ENOBUFS;
+
+ if (request->pd_suppress_range_results &&
+ nla_put_flag(msg, NL80211_PMSR_FTM_REQ_ATTR_PD_SUPPRESS_RESULTS))
+ return -ENOBUFS;
+
nla_nest_end(msg, ftm);
return 0;
@@ -3930,6 +4004,57 @@ static int mac80211_hwsim_parse_ftm_result(struct nlattr *ftm,
result->civicloc_len = nla_len(tb[NL80211_PMSR_FTM_RESP_ATTR_CIVICLOC]);
}
+ if (tb[NL80211_PMSR_FTM_RESP_ATTR_TX_LTF_REPETITION_COUNT])
+ result->tx_ltf_repetition_count =
+ nla_get_u32(tb[NL80211_PMSR_FTM_RESP_ATTR_TX_LTF_REPETITION_COUNT]);
+
+ if (tb[NL80211_PMSR_FTM_RESP_ATTR_RX_LTF_REPETITION_COUNT])
+ result->rx_ltf_repetition_count =
+ nla_get_u32(tb[NL80211_PMSR_FTM_RESP_ATTR_RX_LTF_REPETITION_COUNT]);
+
+ if (tb[NL80211_PMSR_FTM_RESP_ATTR_MAX_TIME_BETWEEN_MEASUREMENTS])
+ result->max_time_between_measurements =
+ nla_get_u32(tb[NL80211_PMSR_FTM_RESP_ATTR_MAX_TIME_BETWEEN_MEASUREMENTS]);
+
+ if (tb[NL80211_PMSR_FTM_RESP_ATTR_MIN_TIME_BETWEEN_MEASUREMENTS])
+ result->min_time_between_measurements =
+ nla_get_u32(tb[NL80211_PMSR_FTM_RESP_ATTR_MIN_TIME_BETWEEN_MEASUREMENTS]);
+
+ if (tb[NL80211_PMSR_FTM_RESP_ATTR_NUM_TX_SPATIAL_STREAMS])
+ result->num_tx_spatial_streams =
+ nla_get_u32(tb[NL80211_PMSR_FTM_RESP_ATTR_NUM_TX_SPATIAL_STREAMS]);
+
+ if (tb[NL80211_PMSR_FTM_RESP_ATTR_NUM_RX_SPATIAL_STREAMS])
+ result->num_rx_spatial_streams =
+ nla_get_u32(tb[NL80211_PMSR_FTM_RESP_ATTR_NUM_RX_SPATIAL_STREAMS]);
+
+ if (tb[NL80211_PMSR_FTM_RESP_ATTR_NOMINAL_TIME])
+ result->nominal_time =
+ nla_get_u32(tb[NL80211_PMSR_FTM_RESP_ATTR_NOMINAL_TIME]);
+
+ if (tb[NL80211_PMSR_FTM_RESP_ATTR_AVAILABILITY_WINDOW])
+ result->availability_window =
+ nla_get_u32(tb[NL80211_PMSR_FTM_RESP_ATTR_AVAILABILITY_WINDOW]);
+
+ if (tb[NL80211_PMSR_FTM_RESP_ATTR_MEASUREMENTS_PER_AW])
+ result->measurements_per_aw =
+ nla_get_u32(tb[NL80211_PMSR_FTM_RESP_ATTR_MEASUREMENTS_PER_AW]);
+
+ if (tb[NL80211_PMSR_FTM_RESP_ATTR_CHANNEL_WIDTH]) {
+ result->chan_width_valid = 1;
+ result->chan_width =
+ nla_get_u32(tb[NL80211_PMSR_FTM_RESP_ATTR_CHANNEL_WIDTH]);
+ }
+
+ if (tb[NL80211_PMSR_FTM_RESP_ATTR_PREAMBLE]) {
+ result->preamble_valid = 1;
+ result->preamble =
+ nla_get_u32(tb[NL80211_PMSR_FTM_RESP_ATTR_PREAMBLE]);
+ }
+
+ result->is_delayed_lmr =
+ nla_get_flag(tb[NL80211_PMSR_FTM_RESP_ATTR_IS_DELAYED_LMR]);
+
return 0;
}
@@ -6431,6 +6556,41 @@ static int parse_ftm_capa(const struct nlattr *ftm_capa, struct cfg80211_pmsr_ca
out->ftm.request_civicloc = !!tb[NL80211_PMSR_FTM_CAPA_ATTR_REQ_CIVICLOC];
out->ftm.trigger_based = !!tb[NL80211_PMSR_FTM_CAPA_ATTR_TRIGGER_BASED];
out->ftm.non_trigger_based = !!tb[NL80211_PMSR_FTM_CAPA_ATTR_NON_TRIGGER_BASED];
+ out->ftm.support_edca_responder = !!tb[NL80211_PMSR_FTM_CAPA_ATTR_EDCA_BASED_RESPONDER];
+
+ if (tb[NL80211_PMSR_FTM_CAPA_ATTR_MAX_NUM_TX_ANTENNAS])
+ out->ftm.max_no_of_tx_antennas =
+ nla_get_u32(tb[NL80211_PMSR_FTM_CAPA_ATTR_MAX_NUM_TX_ANTENNAS]);
+
+ if (tb[NL80211_PMSR_FTM_CAPA_ATTR_MAX_NUM_RX_ANTENNAS])
+ out->ftm.max_no_of_rx_antennas =
+ nla_get_u32(tb[NL80211_PMSR_FTM_CAPA_ATTR_MAX_NUM_RX_ANTENNAS]);
+
+ if (tb[NL80211_PMSR_FTM_CAPA_ATTR_MIN_INTERVAL_EDCA])
+ out->ftm.min_allowed_ranging_interval_edca =
+ nla_get_u32(tb[NL80211_PMSR_FTM_CAPA_ATTR_MIN_INTERVAL_EDCA]);
+
+ if (tb[NL80211_PMSR_FTM_CAPA_ATTR_MIN_INTERVAL_NTB])
+ out->ftm.min_allowed_ranging_interval_ntb =
+ nla_get_u32(tb[NL80211_PMSR_FTM_CAPA_ATTR_MIN_INTERVAL_NTB]);
+
+ if (tb[NL80211_PMSR_FTM_CAPA_ATTR_PD_EDCA_PREAMBLES])
+ out->ftm.pd_edca_preambles =
+ nla_get_u32(tb[NL80211_PMSR_FTM_CAPA_ATTR_PD_EDCA_PREAMBLES]);
+
+ if (tb[NL80211_PMSR_FTM_CAPA_ATTR_PD_NTB_PREAMBLES])
+ out->ftm.pd_ntb_preambles =
+ nla_get_u32(tb[NL80211_PMSR_FTM_CAPA_ATTR_PD_NTB_PREAMBLES]);
+
+ if (tb[NL80211_PMSR_FTM_CAPA_ATTR_PD_EDCA_BANDWIDTHS])
+ out->ftm.pd_edca_bandwidths =
+ nla_get_u32(tb[NL80211_PMSR_FTM_CAPA_ATTR_PD_EDCA_BANDWIDTHS]);
+
+ if (tb[NL80211_PMSR_FTM_CAPA_ATTR_PD_NTB_BANDWIDTHS])
+ out->ftm.pd_ntb_bandwidths =
+ nla_get_u32(tb[NL80211_PMSR_FTM_CAPA_ATTR_PD_NTB_BANDWIDTHS]);
+
+ out->ftm.support_range_report = !!tb[NL80211_PMSR_FTM_CAPA_ATTR_RANGE_REPORT];
return 0;
}
@@ -6453,6 +6613,17 @@ static int parse_pmsr_capa(const struct nlattr *pmsr_capa, struct cfg80211_pmsr_
out->max_peers = nla_get_u32(tb[NL80211_PMSR_ATTR_MAX_PEERS]);
out->report_ap_tsf = !!tb[NL80211_PMSR_ATTR_REPORT_AP_TSF];
out->randomize_mac_addr = !!tb[NL80211_PMSR_ATTR_RANDOMIZE_MAC_ADDR];
+ out->pd_randomize_mac_addr_conn =
+ !!tb[NL80211_PMSR_ATTR_RANDOMIZE_MAC_ADDR];
+ out->pd_support = !!tb[NL80211_PMSR_ATTR_PD_SUPPORT];
+ out->pd_concurrent_ista_rsta_support =
+ !!tb[NL80211_PMSR_ATTR_PD_CONCURRENT_ISTA_RSTA_SUPPORT];
+ if (tb[NL80211_PMSR_ATTR_PD_MAX_PEER_ISTA_ROLE])
+ out->pd_max_peer_ista_role =
+ nla_get_u32(tb[NL80211_PMSR_ATTR_PD_MAX_PEER_ISTA_ROLE]);
+ if (tb[NL80211_PMSR_ATTR_PD_MAX_PEER_RSTA_ROLE])
+ out->pd_max_peer_rsta_role =
+ nla_get_u32(tb[NL80211_PMSR_ATTR_PD_MAX_PEER_RSTA_ROLE]);
if (!tb[NL80211_PMSR_ATTR_TYPE_CAPA]) {
NL_SET_ERR_MSG_ATTR(info->extack, tb[NL80211_PMSR_ATTR_TYPE_CAPA],
--
2.34.1
^ permalink raw reply related [flat|nested] 27+ messages in thread