From 14f34e36b36ceede9877ca422a62fcac17b52023 Mon Sep 17 00:00:00 2001 From: Gurumoorthi Gnanasambandhan Date: Thu, 31 Oct 2019 23:46:40 +0200 Subject: cfg80211: VLAN offload support for set_key and set_sta_vlan This provides an alternative mechanism for AP VLAN support where a single netdev is used with VLAN tagged frames instead of separate netdevs for each VLAN without tagged frames from the WLAN driver. By setting NL80211_EXT_FEATURE_VLAN_OFFLOAD flag the driver indicates support for a single netdev with VLAN tagged frames. Separate VLAN-specific netdevs can be added using RTM_NEWLINK/IFLA_VLAN_ID similarly to Ethernet. NL80211_CMD_NEW_KEY (for group keys), NL80211_CMD_NEW_STATION, and NL80211_CMD_SET_STATION will optionally specify vlan_id using NL80211_ATTR_VLAN_ID. Signed-off-by: Gurumoorthi Gnanasambandhan Signed-off-by: Jouni Malinen Link: https://lore.kernel.org/r/20191031214640.5012-1-jouni@codeaurora.org Signed-off-by: Johannes Berg --- include/uapi/linux/nl80211.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 64135ab3a7ac..341e0e8cae46 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -248,6 +248,22 @@ * %NL80211_ATTR_SAE_PASSWORD. */ +/** + * DOC: VLAN offload support for setting group keys and binding STAs to VLANs + * + * By setting @NL80211_EXT_FEATURE_VLAN_OFFLOAD flag drivers can indicate they + * support offloading VLAN functionality in a manner where the driver exposes a + * single netdev that uses VLAN tagged frames and separate VLAN-specific netdevs + * can then be added using RTM_NEWLINK/IFLA_VLAN_ID similarly to the Ethernet + * case. Frames received from stations that are not assigned to any VLAN are + * delivered on the main netdev and frames to such stations can be sent through + * that main netdev. + * + * %NL80211_CMD_NEW_KEY (for group keys), %NL80211_CMD_NEW_STATION, and + * %NL80211_CMD_SET_STATION will optionally specify vlan_id using + * %NL80211_ATTR_VLAN_ID. + */ + /** * enum nl80211_commands - supported nl80211 commands * @@ -2381,6 +2397,9 @@ enum nl80211_commands { * the allowed channel bandwidth configurations. (u8 attribute) * Defined by IEEE P802.11ay/D4.0 section 9.4.2.251, Table 13. * + * @NL80211_ATTR_VLAN_ID: VLAN ID (1..4094) for the station and VLAN group key + * (u16). + * * @NUM_NL80211_ATTR: total number of nl80211_attrs available * @NL80211_ATTR_MAX: highest attribute number currently defined * @__NL80211_ATTR_AFTER_LAST: internal use @@ -2843,6 +2862,8 @@ enum nl80211_attrs { NL80211_ATTR_WIPHY_EDMG_CHANNELS, NL80211_ATTR_WIPHY_EDMG_BW_CONFIG, + NL80211_ATTR_VLAN_ID, + /* add attributes here, update the policy in nl80211.c */ __NL80211_ATTR_AFTER_LAST, @@ -5492,6 +5513,10 @@ enum nl80211_feature_flags { * @NL80211_EXT_FEATURE_SAE_OFFLOAD: Device wants to do SAE authentication in * station mode (SAE password is passed as part of the connect command). * + * @NL80211_EXT_FEATURE_VLAN_OFFLOAD: The driver supports a single netdev + * with VLAN tagged frames and separate VLAN-specific netdevs added using + * vconfig similarly to the Ethernet case. + * * @NUM_NL80211_EXT_FEATURES: number of extended features. * @MAX_NL80211_EXT_FEATURES: highest extended feature index. */ @@ -5537,6 +5562,7 @@ enum nl80211_ext_feature_index { NL80211_EXT_FEATURE_EXT_KEY_ID, NL80211_EXT_FEATURE_STA_TX_PWR, NL80211_EXT_FEATURE_SAE_OFFLOAD, + NL80211_EXT_FEATURE_VLAN_OFFLOAD, /* add new features before the definition below */ NUM_NL80211_EXT_FEATURES, -- cgit v1.2.3-71-gd317