Commit Graph

14 Commits

Author SHA1 Message Date
Linus Torvalds 4d2fa8b44b Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
 "Here is the crypto update for 5.3:

  API:
   - Test shash interface directly in testmgr
   - cra_driver_name is now mandatory

  Algorithms:
   - Replace arc4 crypto_cipher with library helper
   - Implement 5 way interleave for ECB, CBC and CTR on arm64
   - Add xxhash
   - Add continuous self-test on noise source to drbg
   - Update jitter RNG

  Drivers:
   - Add support for SHA204A random number generator
   - Add support for 7211 in iproc-rng200
   - Fix fuzz test failures in inside-secure
   - Fix fuzz test failures in talitos
   - Fix fuzz test failures in qat"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (143 commits)
  crypto: stm32/hash - remove interruptible condition for dma
  crypto: stm32/hash - Fix hmac issue more than 256 bytes
  crypto: stm32/crc32 - rename driver file
  crypto: amcc - remove memset after dma_alloc_coherent
  crypto: ccp - Switch to SPDX license identifiers
  crypto: ccp - Validate the the error value used to index error messages
  crypto: doc - Fix formatting of new crypto engine content
  crypto: doc - Add parameter documentation
  crypto: arm64/aes-ce - implement 5 way interleave for ECB, CBC and CTR
  crypto: arm64/aes-ce - add 5 way interleave routines
  crypto: talitos - drop icv_ool
  crypto: talitos - fix hash on SEC1.
  crypto: talitos - move struct talitos_edesc into talitos.h
  lib/scatterlist: Fix mapping iterator when sg->offset is greater than PAGE_SIZE
  crypto/NX: Set receive window credits to max number of CRBs in RxFIFO
  crypto: asymmetric_keys - select CRYPTO_HASH where needed
  crypto: serpent - mark __serpent_setkey_sbox noinline
  crypto: testmgr - dynamically allocate crypto_shash
  crypto: testmgr - dynamically allocate testvec_config
  crypto: talitos - eliminate unneeded 'done' functions at build time
  ...
2019-07-08 20:57:08 -07:00
Ard Biesheuvel 5fdb373570 net/mac80211: move WEP handling to ARC4 library interface
The WEP code in the mac80211 subsystem currently uses the crypto
API to access the arc4 (RC4) cipher, which is overly complicated,
and doesn't really have an upside in this particular case, since
ciphers are always synchronous and therefore always implemented in
software. Given that we have no accelerated software implementations
either, it is much more straightforward to invoke a generic library
interface directly.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-06-20 14:18:33 +08:00
Thomas Gleixner d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00
Eliad Peller f8079d43cf mac80211: move TKIP TX IVs to public part of key struct
Some drivers/devices might want to set the IVs by
themselves (and still let mac80211 generate MMIC).

Specifically, this is needed when the device does
offloading at certain times, and the driver has
to make sure that the IVs of new tx frames (from
the host) are synchronized with IVs that were
potentially used during the offloading.

Similarly to CCMP, move the TX IVs of TKIP keys to the
public part of the key struct, and export a function
to add the IV right into the crypto header.

The public tx_pn field is defined as atomic64, so define
TKIP_PN_TO_IV16/32 helper macros to convert it to iv16/32
when needed.

Since the iv32 used for the p1k cache is taken
directly from the frame, we can safely remove
iv16/32 from being protected by tkip.txlock.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24 09:04:38 +01:00
Johannes Berg 523b02ea23 mac80211: fix TKIP races, make API easier to use
Our current TKIP code races against itself on TX
since we can process multiple packets at the same
time on different ACs, but they all share the TX
context for TKIP. This can lead to bad IVs etc.

Also, the crypto offload helper code just obtains
the P1K/P2K from the cache, and can update it as
well, but there's no guarantee that packets are
really processed in order.

To fix these issues, first introduce a spinlock
that will protect the IV16/IV32 values in the TX
context. This first step makes sure that we don't
assign the same IV multiple times or get confused
in other ways.

Secondly, change the way the P1K cache works. I
add a field "p1k_iv32" that stores the value of
the IV32 when the P1K was last recomputed, and
if different from the last time, then a new P1K
is recomputed. This can cause the P1K computation
to flip back and forth if packets are processed
out of order. All this also happens under the new
spinlock.

Finally, because there are argument differences,
split up the ieee80211_get_tkip_key() API into
ieee80211_get_tkip_p1k() and ieee80211_get_tkip_p2k()
and give them the correct arguments.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-08 11:11:19 -04:00
Felix Fietkau 5f9f1812b6 mac80211: remove the dependency on crypto_blkcipher
The only thing that using crypto_blkcipher with ecb does over just using
arc4 directly is wrapping the encrypt/decrypt function into a for loop,
looping over each individual character.
To be able to do this, it pulls in around 40 kb worth of unnecessary
kernel modules (at least on a MIPS embedded device).
Using arc4 directly not only eliminates those dependencies, it also makes
the code smaller.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-04-04 16:20:00 -04:00
John W. Linville 3473187d24 mac80211: remove wep dependency
The current mac80211 code assumes that WEP is always available.  If WEP
fails to initialize, ieee80211_register_hw will always fail.

In some cases (e.g. FIPS certification), the cryptography used by WEP is
unavailable.  However, in such cases there is no good reason why CCMP
encryption (or even no link level encryption) cannot be used.  So, this
patch removes mac80211's assumption that WEP (and TKIP) will always be
available for use.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-07-08 16:35:50 -04:00
Harvey Harrison c801242c38 mac80211: tkip.c consolidate tkip IV writing in helper
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-14 12:18:13 -04:00
Harvey Harrison a7b6f0c555 mac80211: add const, remove unused function, make one function static
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: "John W. Linville" <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-21 21:47:48 -04:00
Johannes Berg 988c0f723d mac80211: a few code cleanups
This has some code cleanups (some inspired by checkpatch), I got
bored at probably a third of the output though so if somebody
else wants to...

Signed-off-by: Johannes Berg <johannes@sipsolutions.net
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-05-07 15:02:11 -04:00
Johannes Berg 2c8dccc774 mac80211: rename files
This patch renames all mac80211 files (except ieee80211_i.h) to get rid
of the useless ieee80211_ prefix.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-04-08 16:44:45 -04:00
Emmanuel Grumbach 9ae4fda332 mac80211: allows driver to request a Phase 1 RX key
This patch makes mac80211 able to send a phase1 key for TKIP
decryption.
This is needed for drivers that don't do the rekeying by themselves
(i.e. iwlwifi). Upon IV16 wrap around, the packet is decrypted in SW,
if decryption is ok, mac80211 calls to update_tkip_key  with a new
phase 1 RX key.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-25 16:41:53 -04:00
Johannes Berg 50741ae05a [PATCH] mac80211: fix TKIP IV update
The TKIP IV should be updated only after MMIC verification,
this patch changes it to be at that spot.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-10-10 16:53:16 -07:00
Jiri Benc f0706e828e [MAC80211]: Add mac80211 wireless stack.
Add mac80211, the IEEE 802.11 software MAC layer.

Signed-off-by: Jiri Benc <jbenc@suse.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-05-05 11:45:53 -07:00