BACKPORT: ath10k: rebuild crypto header in rx data frames
Rx data frames notified through HTT_T2H_MSG_TYPE_RX_IND and
HTT_T2H_MSG_TYPE_RX_FRAG_IND expect PN/TSC check to be done
on host (mac80211) rather than firmware. Rebuild cipher header
in every received data frames (that are notified through those
HTT interfaces) from the rx_hdr_status tlv available in the
rx descriptor of the first msdu. Skip setting RX_FLAG_IV_STRIPPED
flag for the packets which requires mac80211 PN/TSC check support
and set appropriate RX_FLAG for stripped crypto tail. Hw QCA988X,
QCA9887, QCA99X0, QCA9984, QCA9888 and QCA4019 currently need the
rebuilding of cipher header to perform PN/TSC check for replay
attack.
Please note that removing crypto tail for CCMP-256, GCMP and GCMP-256 ciphers
in raw mode needs to be fixed. Since Rx with these ciphers in raw
mode does not work in the current form even without this patch and
removing crypto tail for these chipers needs clean up, raw mode related
issues in CCMP-256, GCMP and GCMP-256 can be addressed in follow up
patches.
BUG=b:179418147
TEST=Compiled tested only
(cherry picked from commit 7eccb738fce57cbe53ed903ccf43f9ab257b15b3)
(source: https://git.kernel.org/cgit/linux/kernel/git/kvalo/ath.git)
Change-Id: Ia6cd0af3ddb4005f0e0fa425ef96f9ba93edd986
Tested-by: Manikanta Pubbisetty <mpubbise@codeaurora.org>
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Maharaja Kennadyrajan <mkenna@codeaurora.org>
Signed-off-by: ANKIT DARSI AMARNATHAGUPTHA <dankit@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/2948601
Reviewed-by: Julan Hsu <julanhsu@google.com>
Commit-Queue: Julan Hsu <julanhsu@google.com>
2 files changed
