kernel/drivers/net/wireless/mediatek, branch linux-4.16.y

mt76x2: fix warning in ieee80211_get_key_rx_seq()

2018-05-30T06:17:27Z

[ Upstream commit c03a5aacde0c86f6dabab8f17a6d1911ee13b6c4 ] Fall back to software encryption for hw unsupported ciphers in order to fix the following warning in ieee80211_get_key_rx_seq routine: WARNING: CPU: 1 PID: 1277 at backports-2017-11-01/net/mac80211/key.c: 1010 mt76_wcid_key_setup+0x6c/0x138 [mt76] CPU: 1 PID: 1277 Comm: hostapd Tainted: G W 4.9.86 #0 Stack : 00000000 00000000 80527b4a 00000042 80523824 00000000 00000000 80520000 8fd79a9c 804bbda7 80454c84 00000001 000004fd 80523824 8f7e4ba0 8eceda12 00000010 8006af94 00000001 80520000 804c1f04 804c1f08 80459890 8ec999b4 00000003 800a7840 8f7e4ba0 8eceda12 8121de20 00000000 00000001 00c999b4 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ... Call Trace: [<8000f52c>] show_stack+0x70/0x8c [<801d8d04>] dump_stack+0x94/0xd0 [<8002bcd4>] __warn+0x110/0x118 [<8002bd70>] warn_slowpath_null+0x1c/0x2c [<8f0415cc>] mt76_wcid_key_setup+0x6c/0x138 [mt76] [<8f1311b4>] mt76x2_dma_cleanup+0xa38/0x1048 [mt76x2e] Fixes: 30ce7f4456ae ("mt76: validate rx CCMP PN") Signed-off-by: Lorenzo Bianconi Acked-by: Felix Fietkau Signed-off-by: Kalle Valo Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

mt76x2: fix possible NULL pointer dereferencing in mt76x2_tx()

2018-05-30T06:17:27Z

[ Upstream commit 6958b027435aa54d82bbef09a007fd287f439977 ] Fix a theoretical NULL pointer dereferencing in mt76x2_tx routine that can occurs for injected frames in a monitor vif since vif pointer could be NULL for that interfaces Fixes: 23405236460b ("mt76: fix transmission of encrypted mgmt frames") Signed-off-by: Lorenzo Bianconi Acked-by: Felix Fietkau Signed-off-by: Kalle Valo Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

mt76: do not set status->aggr for NULL data frames

2018-02-01T08:44:01Z

Avoids data connection stalls when the client toggles powersave mode Fixes: aee5b8cf2477 ("mt76: implement A-MPDU rx reordering in the driver code") Signed-off-by: Felix Fietkau Signed-off-by: Kalle Valo

mt76: avoid re-queueing A-MPDU rx reorder work if no frames are pending

2018-02-01T08:43:59Z

Fixes: aee5b8cf2477 ("mt76: implement A-MPDU rx reordering in the driver code") Signed-off-by: Felix Fietkau Signed-off-by: Kalle Valo

mt76: implement processing of BlockAckReq frames

2018-02-01T08:43:58Z

Avoids timeouts on reordered A-MPDU rx frames Fixes: aee5b8cf2477 ("mt76: implement A-MPDU rx reordering in the driver code") Signed-off-by: Felix Fietkau Signed-off-by: Kalle Valo

mt76: implement AP_LINK_PS

2018-02-01T08:43:57Z

With software A-MPDU reordering in place, frames that notify mac80211 of powersave changes are reordered as well, which can cause connection stalls. Fix this by implementing powersave state processing in the driver. Fixes: aee5b8cf2477 ("mt76: implement A-MPDU rx reordering in the driver code") Signed-off-by: Felix Fietkau Signed-off-by: Kalle Valo

mt76: validate rx CCMP PN

2018-01-26T09:20:52Z

Apparently hardware does not perform CCMP PN validation in hardware, so we need to take care of this in the driver. This is important for protecting against replay attacks. Since validation of fragmented frames is more complex, the CCMP header for those is preserved. To keep the counter in sync, the first fragment is verified by both mt76 and mac80211, and all other fragments only by mac80211. Signed-off-by: Felix Fietkau Signed-off-by: Kalle Valo

mt76: pass the per-vif wcid to the core for multicast rx

2018-01-26T09:18:45Z

Preparation for adding software rx CCMP PN validation Signed-off-by: Felix Fietkau Signed-off-by: Kalle Valo

mt76: split mt76_rx_complete

2018-01-26T09:18:43Z

Add a separate function for processing frames after A-MPDU reordering, reduce code duplication Signed-off-by: Felix Fietkau Signed-off-by: Kalle Valo

mt76: implement A-MPDU rx reordering in the driver code

2018-01-26T09:18:39Z

This is required for performing CCMP PN validation in software Signed-off-by: Felix Fietkau Signed-off-by: Kalle Valo