mirror of
https://github.com/Telecominfraproject/wlan-ap.git
synced 2025-12-20 10:51:27 +00:00
130 lines
4.3 KiB
Diff
130 lines
4.3 KiB
Diff
From 36ee9d37b53c933f4dd8f934f8e0273b5e901549 Mon Sep 17 00:00:00 2001
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From: Sathishkumar Muruganandam <murugana@codeaurora.org>
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Date: Fri, 8 Jan 2021 00:02:54 +0530
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Subject: [PATCH 1/3] mac80211: add dynamic VLAN support on NSS offload
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NSS requires dynamic AP_VLAN vif ifnum and its corresponding VLAN ID
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and group key index to configure dynamic VLAN ext VDEV in NSS.
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Hence mac80211 set_key and sta_state callbacks are modified to advertise
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AP_VLAN vif when NSS offload is enabled and VLAN ID provided by hostapd
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in key params is stored to ieee80211_key_conf for the driver.
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Co-Developed-by: Seevalamuthu Mariappan <seevalam@codeaurora.org>
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Signed-off-by: Seevalamuthu Mariappan <seevalam@codeaurora.org>
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Signed-off-by: Sathishkumar Muruganandam <murugana@codeaurora.org>
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---
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include/net/mac80211.h | 3 +++
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net/mac80211/cfg.c | 1 +
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net/mac80211/driver-ops.c | 4 +++-
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net/mac80211/driver-ops.h | 4 +++-
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net/mac80211/key.c | 5 ++++-
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net/mac80211/tx.c | 4 ++++
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6 files changed, 18 insertions(+), 3 deletions(-)
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--- a/include/net/mac80211.h
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+++ b/include/net/mac80211.h
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@@ -1910,6 +1910,8 @@ enum ieee80211_key_flags {
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* @tx_pn: PN used for TX keys, may be used by the driver as well if it
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* needs to do software PN assignment by itself (e.g. due to TSO)
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* @flags: key flags, see &enum ieee80211_key_flags.
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+ * @vlan_id: VLAN ID corresponding to the group key.
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+ * For VLAN interfaces 1-4096, 0 for non-vlan interfaces
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* @keyidx: the key index (0-3)
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* @keylen: key material length
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* @key: key material. For ALG_TKIP the key is encoded as a 256-bit (32 byte)
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@@ -1928,6 +1930,7 @@ struct ieee80211_key_conf {
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u8 hw_key_idx;
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s8 keyidx;
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u16 flags;
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+ u16 vlan_id;
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u8 keylen;
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u8 key[];
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};
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--- a/net/mac80211/cfg.c
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+++ b/net/mac80211/cfg.c
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@@ -510,6 +510,7 @@ static int ieee80211_add_key(struct wiph
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break;
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case NL80211_IFTYPE_AP:
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case NL80211_IFTYPE_AP_VLAN:
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+ key->conf.vlan_id = params->vlan_id;
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/* Keys without a station are used for TX only */
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if (sta && test_sta_flag(sta, WLAN_STA_MFP))
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key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
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--- a/net/mac80211/driver-ops.c
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+++ b/net/mac80211/driver-ops.c
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@@ -113,7 +113,11 @@ int drv_sta_state(struct ieee80211_local
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might_sleep();
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- sdata = get_bss_sdata(sdata);
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+ if (!ieee80211_hw_check(&local->hw, SUPPORTS_NSS_OFFLOAD) ||
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+ !(old_state == IEEE80211_STA_ASSOC &&
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+ new_state == IEEE80211_STA_AUTHORIZED))
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+ sdata = get_bss_sdata(sdata);
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+
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if (!check_sdata_in_driver(sdata))
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return -EIO;
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--- a/net/mac80211/driver-ops.h
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+++ b/net/mac80211/driver-ops.h
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@@ -261,7 +261,9 @@ static inline int drv_set_key(struct iee
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might_sleep();
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- sdata = get_bss_sdata(sdata);
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+ if (!ieee80211_hw_check(&local->hw, SUPPORTS_NSS_OFFLOAD))
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+ sdata = get_bss_sdata(sdata);
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+
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if (!check_sdata_in_driver(sdata))
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return -EIO;
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--- a/net/mac80211/key.c
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+++ b/net/mac80211/key.c
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@@ -167,7 +167,8 @@ static int ieee80211_key_enable_hw_accel
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goto out_unsupported;
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sdata = key->sdata;
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- if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
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+ if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
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+ !ieee80211_hw_check(&key->local->hw, SUPPORTS_NSS_OFFLOAD)) {
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/*
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* The driver doesn't know anything about VLAN interfaces.
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* Hence, don't send GTKs for VLAN interfaces to the driver.
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@@ -553,6 +554,8 @@ ieee80211_key_alloc(u32 cipher, int idx,
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*/
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key->conf.flags = 0;
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key->flags = 0;
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+ /* VLAN ID initialised to zero for non-vlan interfaces */
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+ key->conf.vlan_id = 0;
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key->conf.cipher = cipher;
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key->conf.keyidx = idx;
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--- a/net/mac80211/tx.c
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+++ b/net/mac80211/tx.c
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@@ -4248,8 +4248,11 @@ static void ieee80211_8023_xmit(struct i
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struct ieee80211_key *key, struct sk_buff *skb)
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{
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struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
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+ struct ethhdr *ehdr = (struct ethhdr *)skb->data;
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struct ieee80211_local *local = sdata->local;
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struct tid_ampdu_tx *tid_tx;
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+ unsigned char *ra = ehdr->h_dest;
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+ bool multicast;
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u8 tid;
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if (local->ops->wake_tx_queue) {
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@@ -4258,6 +4261,12 @@ static void ieee80211_8023_xmit(struct i
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skb_get_hash(skb);
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}
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+ multicast = is_multicast_ether_addr(ra);
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+
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+ if (multicast && sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
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+ !atomic_read(&sdata->u.vlan.num_mcast_sta))
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+ goto out_free;
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+
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if (unlikely(test_bit(SCAN_SW_SCANNING, &local->scanning)) &&
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test_bit(SDATA_STATE_OFFCHANNEL, &sdata->state))
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goto out_free;
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