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cfg80211: VLAN offload support for set_key and set_sta_vlan

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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 <gguru@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Link: https://lore.kernel.org/r/20191031214640.5012-1-jouni@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Gurumoorthi Gnanasambandhan
2019-11-08 11:19:19 +01:00
committed by Johannes Berg
parent 6912daed05
commit 14f34e36b3
3 changed files with 41 additions and 0 deletions
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include/net/cfg80211.h
+4
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@@ -565,6 +565,7 @@ struct vif_params {
* with the get_key() callback, must be in little endian,
* length given by @seq_len.
* @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)
*/
struct key_params {
@@ -572,6 +573,7 @@ struct key_params {
const u8 *seq;
int key_len;
int seq_len;
u16 vlan_id;
u32 cipher;
enum nl80211_key_mode mode;
};
@@ -1124,6 +1126,7 @@ struct sta_txpwr {
* (bitmask of BIT(%NL80211_STA_FLAG_...))
* @listen_interval: listen interval or -1 for no change
* @aid: AID or zero for no change
* @vlan_id: VLAN ID for station (if nonzero)
* @peer_aid: mesh peer AID or zero for no change
* @plink_action: plink action to take
* @plink_state: set the peer link state for a station
@@ -1159,6 +1162,7 @@ struct station_parameters {
u32 sta_modify_mask;
int listen_interval;
u16 aid;
u16 vlan_id;
u16 peer_aid;
u8 supported_rates_len;
u8 plink_action;