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mac80211: rt2800: enable MFP support unconditionally

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This gives us WPA3 support out of the box without having to manually disable
hardware crypto. The driver will fall back to software crypto if the connection
requires management frame protection.

THis allows us to use WPA3 features (Private-WiFi SAE & OWE) on
ramips-mt7620.
This commit is contained in:
David Bauer 2020-06-10 22:41:01 +02:00
parent 60d7288255
commit e8cc866db2
1 changed files with 62 additions and 0 deletions
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62
patches/openwrt/0012-mac80211-rt2800-enable-MFP-support-unconditionally.patch Normal file
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@ -0,0 +1,62 @@
From: Rui Salvaterra <rsalvaterra@gmail.com>
Date: Mon, 25 May 2020 14:49:07 +0100
Subject: mac80211: rt2800: enable MFP support unconditionally
This gives us WPA3 support out of the box without having to manually disable
hardware crypto. The driver will fall back to software crypto if the connection
requires management frame protection.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
[apply to openwrt-1907]
Signed-off-by: David Bauer <mail@david-bauer.net>
diff --git a/package/kernel/mac80211/patches/rt2x00/080-rt2800-enable-MFP-support-unconditionally.patch b/package/kernel/mac80211/patches/rt2x00/080-rt2800-enable-MFP-support-unconditionally.patch
new file mode 100644
index 0000000000000000000000000000000000000000..1d55b2756c365a13b2315e874809e2397fb35855
--- /dev/null
+++ b/package/kernel/mac80211/patches/rt2x00/080-rt2800-enable-MFP-support-unconditionally.patch
@@ -0,0 +1,44 @@
+From b6b15e20421fefae9f78274f9fef80bc97bf5d5c Mon Sep 17 00:00:00 2001
+From: Rui Salvaterra <rsalvaterra@gmail.com>
+Date: Mon, 25 May 2020 14:49:07 +0100
+Subject: [PATCH] rt2800: enable MFP support unconditionally
+
+This gives us WPA3 support out of the box without having to manually disable
+hardware crypto. The driver will fall back to software crypto if the connection
+requires management frame protection.
+
+Suggested-by: Stanislaw Gruszka <stf_xl@wp.pl>
+Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
+Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
+Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
+Link: https://lore.kernel.org/r/20200525134906.1672-1-rsalvaterra@gmail.com
+---
+ drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 4 +---
+ drivers/net/wireless/ralink/rt2x00/rt2x00mac.c | 3 ++-
+ 2 files changed, 3 insertions(+), 4 deletions(-)
+
+--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
++++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+@@ -9985,9 +9985,7 @@ static int rt2800_probe_hw_mode(struct r
+ if (!rt2x00_is_usb(rt2x00dev))
+ ieee80211_hw_set(rt2x00dev->hw, HOST_BROADCAST_PS_BUFFERING);
+
+- /* Set MFP if HW crypto is disabled. */
+- if (rt2800_hwcrypt_disabled(rt2x00dev))
+- ieee80211_hw_set(rt2x00dev->hw, MFP_CAPABLE);
++ ieee80211_hw_set(rt2x00dev->hw, MFP_CAPABLE);
+
+ SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
+ SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
+--- a/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
++++ b/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
+@@ -459,7 +459,8 @@ int rt2x00mac_set_key(struct ieee80211_h
+ if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
+ return 0;
+
+- if (!rt2x00_has_cap_hw_crypto(rt2x00dev))
++ /* The hardware can't do MFP */
++ if (!rt2x00_has_cap_hw_crypto(rt2x00dev) || (sta && sta->mfp))
+ return -EOPNOTSUPP;
+
+ /*