diff options
| author | Benjamin Berg <benjamin.berg@intel.com> | 2026-09-15 15:19:31 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2026-09-16 10:42:40 +0200 |
| commit | de5f5ca3d3bfcdcc38c10eb9246eca3687cd2261 (patch) | |
| tree | 3aba6f7240ccd52dc3fb624ec865f9e4537e2f61 /include | |
| parent | 6d531b9af16ea84aab72db573384fa94bfa0f2f7 (diff) | |
| download | linux-next-de5f5ca3d3bfcdcc38c10eb9246eca3687cd2261.tar.gz linux-next-de5f5ca3d3bfcdcc38c10eb9246eca3687cd2261.zip | |
wifi: cfg80211: add attribute for TX/RX denoting there is no station
For MLD stations, userspace may need to explicitly transmit a frame to
a specific link address. In that case, it needs to ensure that no
address translation happens.
In the reverse case of an RX, userspace may need to know the link
address for a frame. By passing the information whether a STA is known
for the frame, userspace knows whether link translation happened and
can do the reverse lookup when needed.
This is important for flows where a STA is still registered but the
connection has been lost and it is returning again.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Link: https://patch.msgid.link/20260915151925.f12af80b1972.I4cfd3db83ba3dc0267575f919ba613ea5d10abd5@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/cfg80211.h | 4 | ||||
| -rw-r--r-- | include/uapi/linux/nl80211.h | 7 |
2 files changed, 11 insertions, 0 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 6461a7bd0169..9aa7d2d4a184 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -4009,6 +4009,7 @@ struct cfg80211_update_ft_ies_params { * @link_id: for MLO, the link ID to transmit on, -1 if not given; note * that the link ID isn't validated (much), it's in range but the * link might not exist (or be used by the receiver STA) + * @no_sta: set if the frame should not be transmitted using an existing STA */ struct cfg80211_mgmt_tx_params { struct ieee80211_channel *chan; @@ -4021,6 +4022,7 @@ struct cfg80211_mgmt_tx_params { int n_csa_offsets; const u16 *csa_offsets; int link_id; + bool no_sta; }; /** @@ -9501,6 +9503,7 @@ void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr, * @flags: flags, as defined in &enum nl80211_rxmgmt_flags * @rx_tstamp: Hardware timestamp of frame RX in nanoseconds * @ack_tstamp: Hardware timestamp of ack TX in nanoseconds + * @no_sta: set if no station is known for the frame (relevant for MLD) */ struct cfg80211_rx_info { int freq; @@ -9512,6 +9515,7 @@ struct cfg80211_rx_info { u32 flags; u64 rx_tstamp; u64 ack_tstamp; + bool no_sta; }; /** diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 32553cacf988..510102febc26 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -3185,6 +3185,11 @@ enum nl80211_commands { * The aggregated message always precedes the per-link messages for the * same station within a dump sequence. * + * @NL80211_ATTR_FRAME_NO_STA: Valid for @NL80211_CMD_FRAME to denote that + * the kernel had no station for a received frame or should not use a + * known station to transmit a frame. This is relevant to know whether + * MLD address translation happened or to disable it when sending a frame. + * * @NUM_NL80211_ATTR: total number of nl80211_attrs available * @NL80211_ATTR_MAX: highest attribute number currently defined * @__NL80211_ATTR_AFTER_LAST: internal use @@ -3785,6 +3790,8 @@ enum nl80211_attrs { NL80211_ATTR_STA_DUMP_LINK_STATS, + NL80211_ATTR_FRAME_NO_STA, + /* add attributes here, update the policy in nl80211.c */ __NL80211_ATTR_AFTER_LAST, |