[PATCH wireless-next 0/6] Consolidate Michael MIC code into mac80211

[Eric Biggers <ebiggers@kernel.org>]

Michael MIC is an inherently weak algorithm that is specific to WPA
TKIP, which itself was an interim security solution to replace the
broken WEP standard.

Currently, the primary implementation of Michael MIC in the kernel is
the one in the mac80211 module.  But there's also a duplicate
implementation in crypto/michael_mic.c which is exposed via the
crypto_shash API.  It's used only by a few wireless drivers.

Seeing as Michael MIC is specific to WPA TKIP and should never be used
elsewhere, this series migrates those few drivers to the mac80211
implementation of Michael MIC, then removes the crypto implementation of
Michael MIC.  This consolidates duplicate code and prevents other kernel
subsystems from accidentally using this insecure algorithm.

This series is targeting wireless-next.

Eric Biggers (6):
  wifi: mac80211: Export michael_mic()
  wifi: ath11k: Use michael_mic() from mac80211
  wifi: ath12k: Use michael_mic() from mac80211
  wifi: ipw2x00: Depend on MAC80211
  wifi: ipw2x00: Use michael_mic() from mac80211
  crypto: Remove michael_mic from crypto_shash API

 arch/arm/configs/omap2plus_defconfig          |   1 -
 arch/arm/configs/spitz_defconfig              |   1 -
 arch/arm64/configs/defconfig                  |   1 -
 arch/m68k/configs/amiga_defconfig             |   1 -
 arch/m68k/configs/apollo_defconfig            |   1 -
 arch/m68k/configs/atari_defconfig             |   1 -
 arch/m68k/configs/bvme6000_defconfig          |   1 -
 arch/m68k/configs/hp300_defconfig             |   1 -
 arch/m68k/configs/mac_defconfig               |   1 -
 arch/m68k/configs/multi_defconfig             |   1 -
 arch/m68k/configs/mvme147_defconfig           |   1 -
 arch/m68k/configs/mvme16x_defconfig           |   1 -
 arch/m68k/configs/q40_defconfig               |   1 -
 arch/m68k/configs/sun3_defconfig              |   1 -
 arch/m68k/configs/sun3x_defconfig             |   1 -
 arch/mips/configs/bigsur_defconfig            |   1 -
 arch/mips/configs/decstation_64_defconfig     |   1 -
 arch/mips/configs/decstation_defconfig        |   1 -
 arch/mips/configs/decstation_r4k_defconfig    |   1 -
 arch/mips/configs/gpr_defconfig               |   1 -
 arch/mips/configs/ip32_defconfig              |   1 -
 arch/mips/configs/lemote2f_defconfig          |   1 -
 arch/mips/configs/malta_qemu_32r6_defconfig   |   1 -
 arch/mips/configs/maltaaprp_defconfig         |   1 -
 arch/mips/configs/maltasmvp_defconfig         |   1 -
 arch/mips/configs/maltasmvp_eva_defconfig     |   1 -
 arch/mips/configs/maltaup_defconfig           |   1 -
 arch/mips/configs/mtx1_defconfig              |   1 -
 arch/mips/configs/rm200_defconfig             |   1 -
 arch/mips/configs/sb1250_swarm_defconfig      |   1 -
 arch/parisc/configs/generic-32bit_defconfig   |   1 -
 arch/parisc/configs/generic-64bit_defconfig   |   1 -
 arch/powerpc/configs/g5_defconfig             |   1 -
 arch/powerpc/configs/linkstation_defconfig    |   1 -
 arch/powerpc/configs/mvme5100_defconfig       |   1 -
 arch/powerpc/configs/powernv_defconfig        |   1 -
 arch/powerpc/configs/ppc64_defconfig          |   1 -
 arch/powerpc/configs/ppc64e_defconfig         |   1 -
 arch/powerpc/configs/ppc6xx_defconfig         |   1 -
 arch/powerpc/configs/ps3_defconfig            |   1 -
 arch/s390/configs/debug_defconfig             |   1 -
 arch/s390/configs/defconfig                   |   1 -
 arch/sh/configs/sh2007_defconfig              |   1 -
 arch/sh/configs/titan_defconfig               |   1 -
 arch/sh/configs/ul2_defconfig                 |   1 -
 arch/sparc/configs/sparc32_defconfig          |   1 -
 arch/sparc/configs/sparc64_defconfig          |   1 -
 crypto/Kconfig                                |  12 --
 crypto/Makefile                               |   1 -
 crypto/michael_mic.c                          | 176 ------------------
 crypto/tcrypt.c                               |   4 -
 crypto/testmgr.c                              |   6 -
 crypto/testmgr.h                              |  50 -----
 drivers/net/wireless/ath/ath11k/Kconfig       |   1 -
 drivers/net/wireless/ath/ath11k/dp.c          |   2 -
 drivers/net/wireless/ath/ath11k/dp_rx.c       |  60 +-----
 drivers/net/wireless/ath/ath11k/peer.h        |   1 -
 drivers/net/wireless/ath/ath12k/Kconfig       |   1 -
 drivers/net/wireless/ath/ath12k/dp.c          |   2 -
 drivers/net/wireless/ath/ath12k/dp_peer.h     |   1 -
 drivers/net/wireless/ath/ath12k/dp_rx.c       |  55 +-----
 drivers/net/wireless/ath/ath12k/dp_rx.h       |   4 -
 drivers/net/wireless/ath/ath12k/wifi7/dp_rx.c |   7 +-
 drivers/net/wireless/intel/ipw2x00/Kconfig    |   7 +-
 .../intel/ipw2x00/libipw_crypto_tkip.c        | 120 +-----------
 include/linux/ieee80211.h                     |   5 +
 net/mac80211/michael.c                        |   5 +-
 net/mac80211/michael.h                        |  22 ---
 net/mac80211/wpa.c                            |   1 -
 69 files changed, 32 insertions(+), 558 deletions(-)
 delete mode 100644 crypto/michael_mic.c
 delete mode 100644 net/mac80211/michael.h


base-commit: dbd94b9831bc52a1efb7ff3de841ffc3457428ce
-- 
2.53.0