diff options
| author | Miri Korenblit <miriam.rachel.korenblit@intel.com> | 2026-03-18 14:39:23 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2026-03-25 20:56:55 +0100 |
| commit | 44ea50a5bf304d3d6b55e4a2f946ce3c45a4e648 (patch) | |
| tree | 134ab80e038454da0f2f15742ff8d5af14c1d08b /net/wireless | |
| parent | f826534483bac96320a3686694e3e1a033087240 (diff) | |
wifi: nl80211: add NL80211_CMD_NAN_ULW_UPDATE notification
Add a new notification command that allows drivers to notify user space
when the device's ULW (Unaligned Schedule) blob has been updated. This
enables user space to attach the updated ULW blob to frames sent to NAN
peers.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260219114327.32b715af4ebb.Ibdb6e33941afd94abf77245245f87e4338d729d3@changeid
Link: https://patch.msgid.link/20260318123926.206536-10-miriam.rachel.korenblit@intel.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/nl80211.c | 43 | ||||
| -rw-r--r-- | net/wireless/trace.h | 21 |
2 files changed, 64 insertions, 0 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 7f47feaf4422..b5185655e687 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -22893,6 +22893,49 @@ void cfg80211_nan_cluster_joined(struct wireless_dev *wdev, } EXPORT_SYMBOL(cfg80211_nan_cluster_joined); +void cfg80211_nan_ulw_update(struct wireless_dev *wdev, + const u8 *ulw, size_t ulw_len, gfp_t gfp) +{ + struct wiphy *wiphy = wdev->wiphy; + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); + struct sk_buff *msg; + void *hdr; + + trace_cfg80211_nan_ulw_update(wiphy, wdev, ulw, ulw_len); + + if (!wdev->owner_nlportid) + return; + + /* 32 for the wiphy idx, 64 for the wdev id, 100 for padding */ + msg = nlmsg_new(nla_total_size(sizeof(u32)) + + nla_total_size(ulw_len) + + nla_total_size(sizeof(u64)) + 100, + gfp); + if (!msg) + return; + + hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_ULW_UPDATE); + if (!hdr) + goto nla_put_failure; + + if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || + nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev), + NL80211_ATTR_PAD) || + (ulw && ulw_len && + nla_put(msg, NL80211_ATTR_NAN_ULW, ulw_len, ulw))) + goto nla_put_failure; + + genlmsg_end(msg, hdr); + + genlmsg_unicast(wiphy_net(wiphy), msg, wdev->owner_nlportid); + + return; + + nla_put_failure: + nlmsg_free(msg); +} +EXPORT_SYMBOL(cfg80211_nan_ulw_update); + /* initialisation/exit functions */ int __init nl80211_init(void) diff --git a/net/wireless/trace.h b/net/wireless/trace.h index df639d97cc0c..061bb84f1a48 100644 --- a/net/wireless/trace.h +++ b/net/wireless/trace.h @@ -4342,6 +4342,27 @@ TRACE_EVENT(cfg80211_nan_sched_update_done, TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT " success=%d", WIPHY_PR_ARG, WDEV_PR_ARG, __entry->success) ); + +TRACE_EVENT(cfg80211_nan_ulw_update, + TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev, + const u8 *ulw, size_t ulw_len), + TP_ARGS(wiphy, wdev, ulw, ulw_len), + TP_STRUCT__entry( + WIPHY_ENTRY + WDEV_ENTRY + __dynamic_array(u8, ulw, ulw_len) + ), + TP_fast_assign( + WIPHY_ASSIGN; + WDEV_ASSIGN; + if (ulw && ulw_len) + memcpy(__get_dynamic_array(ulw), ulw, ulw_len); + ), + TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT " ulw: %s", + WIPHY_PR_ARG, WDEV_PR_ARG, + __print_array(__get_dynamic_array(ulw), + __get_dynamic_array_len(ulw), 1)) +); #endif /* !__RDEV_OPS_TRACE || TRACE_HEADER_MULTI_READ */ #undef TRACE_INCLUDE_PATH |