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2009-07-07crypto: api - Add new template create functionHerbert Xu
This patch introduces the template->create function intended to replace the existing alloc function. The intention is for create to handle the registration directly, whereas currently the caller of alloc has to handle the registration. This allows type-specific code to be run prior to registration. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-07-03crypto: ansi_prng - alloc cipher just in initSebastian Andrzej Siewior
As reported by Eric Sesterhenn the re-allocation of the cipher in reset leads to: |BUG: sleeping function called from invalid context at kernel/rwsem.c:21 |in_atomic(): 1, irqs_disabled(): 0, pid: 4926, name: modprobe |INFO: lockdep is turned off. |Pid: 4926, comm: modprobe Tainted: G M 2.6.31-rc1-22297-g5298976 #24 |Call Trace: | [<c011dd93>] __might_sleep+0xf9/0x101 | [<c0777aa0>] down_read+0x16/0x68 | [<c048bf04>] crypto_alg_lookup+0x16/0x34 | [<c048bf52>] crypto_larval_lookup+0x30/0xf9 | [<c048c038>] crypto_alg_mod_lookup+0x1d/0x62 | [<c048c13e>] crypto_alloc_base+0x1e/0x64 | [<c04bf991>] reset_prng_context+0xab/0x13f | [<c04e5cfc>] ? __spin_lock_init+0x27/0x51 | [<c04bfce1>] cprng_init+0x2a/0x42 | [<c048bb4c>] __crypto_alloc_tfm+0xfa/0x128 | [<c048c153>] crypto_alloc_base+0x33/0x64 | [<c04933c9>] alg_test_cprng+0x30/0x1f4 | [<c0493329>] alg_test+0x12f/0x19f | [<c0177f1f>] ? __alloc_pages_nodemask+0x14d/0x481 | [<d09219e2>] do_test+0xf9d/0x163f [tcrypt] | [<d0920de6>] do_test+0x3a1/0x163f [tcrypt] | [<d0926035>] tcrypt_mod_init+0x35/0x7c [tcrypt] | [<c010113c>] _stext+0x54/0x12c | [<d0926000>] ? tcrypt_mod_init+0x0/0x7c [tcrypt] | [<c01398a3>] ? up_read+0x16/0x2b | [<c0139fc4>] ? __blocking_notifier_call_chain+0x40/0x4c | [<c014ee8d>] sys_init_module+0xa9/0x1bf | [<c010292b>] sysenter_do_call+0x12/0x32 because a spin lock is held and crypto_alloc_base() may sleep. There is no reason to re-allocate the cipher, the state is resetted in ->setkey(). This patches makes the cipher allocation a one time thing and moves it to init. Reported-by: Eric Sesterhenn <eric.sesterhenn@lsexperts.de> Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-07-03crypto: ansi_prng - Use just a BH lockSebastian Andrzej Siewior
The current code uses a mix of sping_lock() & spin_lock_irqsave(). This can lead to deadlock with the correct timming & cprng_get_random() + cprng_reset() sequence. I've converted them to bottom half locks since all three user grab just a BH lock so this runs probably in softirq :) Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-07-02crypto: testmgr - Allow implementation-specific testsHerbert Xu
This patch adds the support for testing specific implementations. This should only be used in very specific situations. Right now this means specific implementations of random number generators. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-25crypto: skcipher - Change default sync geniv on SMP to eseqivHerbert Xu
As it stands we use chainiv for sync algorithms and eseqiv for async algorithms. However, when there is more than one CPU chainiv forces all processing to be serialised which is usually not what you want. Also, the added overhead of eseqiv isn't that great. Therefore this patch changes the default sync geniv on SMP machines to eseqiv. For the odd situation where the overhead is unacceptable then chainiv is still available as an option. Note that on UP machines chainiv is still preferred over eseqiv for sync algorithms. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-25crypto: skcipher - Fix request for sync algorithmsHerbert Xu
When a sync givcipher algorithm is requested, if an async version of the same algorithm already exists, then we will loop forever without ever constructing the sync version based on a blkcipher. This is because we did not include the requested type/mask when getting a larval for the geniv algorithm that is to be constructed. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-24crypto: testmgr - Remove hash size checkHerbert Xu
Until hash test vectors grow longer than 256 bytes, the only purpose of the check is to generate a gcc warning. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-21crypto: fips - Select CPRNGNeil Horman
The ANSI CPRNG has no dependence on FIPS support. FIPS support however, requires the use of the CPRNG. Adjust that depedency relationship in Kconfig. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-19crypto: tcrypt - Fix module return code when testing by nameHerbert Xu
We should return 0/-ENOENT instead of 1/0 when testing by name. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-19crypto: ansi_cprng - Do not select FIPSHerbert Xu
The RNG should work with FIPS disabled. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-19crypto: tcrypt - Test algorithms by nameSteffen Klassert
This adds the 'alg' module parameter to be able to test an algorithm by name. If the algorithm type is not ad-hoc clear for a algorithm (e.g. pcrypt, cryptd) it is possilbe to set the algorithm type with the 'type' module parameter. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-18random: Add optional continuous repetition test to entropy store based rngsNeil Horman
FIPS-140 requires that all random number generators implement continuous self tests in which each extracted block of data is compared against the last block for repetition. The ansi_cprng implements such a test, but it would be nice if the hw rng's did the same thing. Obviously its not something thats always needed, but it seems like it would be a nice feature to have on occasion. I've written the below patch which allows individual entropy stores to be flagged as desiring a continuous test to be run on them as is extracted. By default this option is off, but is enabled in the event that fips mode is selected during bootup. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> Acked-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-15Merge commit 'linus/master' into HEADVegard Nossum
Conflicts: MAINTAINERS Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
2009-06-15crypto: don't track xor test pages with kmemcheckVegard Nossum
The xor tests are run on uninitialized data, because it is doesn't really matter what the underlying data is. Annotate this false- positive warning. Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
2009-06-02crypto: api - Use formatting of module nameAlex Riesen
Besdies, for the old code, gcc-4.3.3 produced this warning: "format not a string literal and no format arguments" Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: testmgr - Allow hash test vectors longer than a pageHerbert Xu
As it stands we will each test hash vector both linearly and as a scatter list if applicable. This means that we cannot have vectors longer than a page, even with scatter lists. This patch fixes this by skipping test vectors with np != 0 when testing linearly. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: testmgr - Check all test vector lengthsHerbert Xu
As we cannot guarantee the availability of contiguous pages at run-time, all test vectors must either fit within a page, or use scatter lists. In some cases vectors were not checked as to whether they fit inside a page. This patch adds all the missing checks. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: tcrypt - Do not exit on success in fips modeJarod Wilson
At present, the tcrypt module always exits with an -EAGAIN upon successfully completing all the tests its been asked to run. In fips mode, integrity checking is done by running all self-tests from the initrd, and its much simpler to check the ret from modprobe for success than to scrape dmesg and/or /proc/crypto. Simply stay loaded, giving modprobe a retval of 0, if self-tests all pass and we're in fips mode. A side-effect of tracking success/failure for fips mode is that in non-fips mode, self-test failures will return the actual failure return codes, rather than always returning -EAGAIN, which seems more correct anyway. The tcrypt_test() portion of the patch is dependent on my earlier pair of patches that skip non-fips algs in fips mode, at least to achieve the fully intended behavior. Nb: testing this patch against the cryptodev tree revealed a test failure for sha384, which I have yet to look into... Signed-off-by: Jarod Wilson <jarod@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: compress - Return produced bytes in crypto_{,de}compress_{update,final}Geert Uytterhoeven
If crypto_{,de}compress_{update,final}() succeed, return the actual number of bytes produced instead of zero, so their users don't have to calculate that theirselves. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: testmgr - Skip algs not flagged fips_allowed in fips modeJarod Wilson
Because all fips-allowed algorithms must be self-tested before they can be used, they will all have entries in testmgr.c's alg_test_descs[]. Skip self-tests for any algs not flagged as fips_approved and return -EINVAL when in fips mode. Signed-off-by: Jarod Wilson <jarod@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: testmgr - Mark algs allowed in fips modeJarod Wilson
Set the fips_allowed flag in testmgr.c's alg_test_descs[] for algs that are allowed to be used when in fips mode. One caveat: des isn't actually allowed anymore, but des (and thus also ecb(des)) has to be permitted, because disallowing them results in des3_ede being unable to properly register (see des module init func). Also, crc32 isn't technically on the fips approved list, but I think it gets used in various places that necessitate it being allowed. This list is based on http://csrc.nist.gov/groups/STM/cavp/index.html Important note: allowed/approved here does NOT mean "validated", just that its an alg that *could* be validated. Signed-off-by: Jarod Wilson <jarod@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: testmgr - Add ctr(aes) test vectorsJarod Wilson
Now with multi-block test vectors, all from SP800-38A, Appendix F.5. Also added ctr(aes) to case 10 in tcrypt. Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: testmgr - Dynamically allocate xbuf and axbufHerbert Xu
We currently allocate temporary memory that is used for testing statically. This renders the testing engine non-reentrant. As algorithms may nest, i.e., one may construct another in order to carry out a part of its operation, this is unacceptable. For example, it has been reported that an AEAD implementation allocates a cipher in its setkey function, which causes it to fail during testing as the temporary memory is overwritten. This patch replaces the static memory with dynamically allocated buffers. We need a maximum of 16 pages so this slightly increases the chances of an algorithm failing due to memory shortage. However, as testing usually occurs at registration, this shouldn't be a big problem. Reported-by: Shasi Pulijala <spulijala@amcc.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: testmgr - Print self-test pass notices in fips modeJarod Wilson
According to our FIPS CAVS testing lab guru, when we're in fips mode, we must print out notices of successful self-test completion for every alg to be compliant. New and improved v2, without strncmp crap. Doesn't need to touch a flag though, due to not moving the notest label around anymore. Applies atop '[PATCH v2] crypto: catch base cipher self-test failures in fips mode'. Personally, I wouldn't mind seeing this info printed out regardless of whether or not we're in fips mode, I think its useful info, but will stick with only in fips mode for now. Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: testmgr - Catch base cipher self-test failures in fips modeJarod Wilson
Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: testmgr - Add ansi_cprng test vectorsJarod Wilson
Add ANSI X9.31 Continuous Pseudo-Random Number Generator (AES mode), aka 'ansi_cprng' test vectors, taken from Appendix B.2.9 and B.2.10 of the NIST RNGVS document, found here: http://csrc.nist.gov/groups/STM/cavp/documents/rng/RNGVS.pdf Successfully tested against both the cryptodev-2.6 tree and a Red Hat Enterprise Linux 5.4 kernel, via 'modprobe tcrypt mode=150'. The selection of 150 was semi-arbitrary, didn't seem like it should go any place in particular, so I started a new range for rng tests. Signed-off-by: Jarod Wilson <jarod@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: testmgr - Add infrastructure for ansi_cprng self-testsJarod Wilson
Add some necessary infrastructure to make it possible to run self-tests for ansi_cprng. The bits are likely very specific to the ANSI X9.31 CPRNG in AES mode, and thus perhaps should be named more specifically if/when we grow additional CPRNG support... Successfully tested against the cryptodev-2.6 tree and a Red Hat Enterprise Linux 5.x kernel with the follow-on patch that adds the actual test vectors. Signed-off-by: Jarod Wilson <jarod@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: testmgr - Add self-tests for rfc4309(ccm(aes))Jarod Wilson
Add an array of encryption and decryption + verification self-tests for rfc4309(ccm(aes)). Test vectors all come from sample FIPS CAVS files provided to Red Hat by a testing lab. Unfortunately, all the published sample vectors in RFC 3610 and NIST Special Publication 800-38C contain nonce lengths that the kernel's rfc4309 implementation doesn't support, so while using some public domain vectors would have been preferred, its not possible at this time. Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: testmgr - Handle AEAD test vectors expected to fail verificationJarod Wilson
Add infrastructure to tcrypt/testmgr to support handling ccm decryption test vectors that are expected to fail verification. Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: pcomp - pcompress.c should include crypto/internal/compress.hGeert Uytterhoeven
make C=1: | crypto/pcompress.c:77:5: warning: symbol 'crypto_register_pcomp' was not declared. Should it be static? | crypto/pcompress.c:89:5: warning: symbol 'crypto_unregister_pcomp' was not declared. Should it be static? Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: testmgr - Kill test_comp() sparse warningsGeert Uytterhoeven
make C=1: | crypto/testmgr.c:846:45: warning: incorrect type in argument 5 (different signedness) | crypto/testmgr.c:846:45: expected unsigned int *dlen | crypto/testmgr.c:846:45: got int *<noident> | crypto/testmgr.c:878:47: warning: incorrect type in argument 5 (different signedness) | crypto/testmgr.c:878:47: expected unsigned int *dlen | crypto/testmgr.c:878:47: got int *<noident> Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: aes-ni - Add support for more modesHuang Ying
Because kernel_fpu_begin() and kernel_fpu_end() operations are too slow, the performance gain of general mode implementation + aes-aesni is almost all compensated. The AES-NI support for more modes are implemented as follow: - Add a new AES algorithm implementation named __aes-aesni without kernel_fpu_begin/end() - Use fpu(<mode>(AES)) to provide kenrel_fpu_begin/end() invoking - Add <mode>(AES) ablkcipher, which uses cryptd(fpu(<mode>(AES))) to defer cryption to cryptd context in soft_irq context. Now the ctr, lrw, pcbc and xts support are added. Performance testing based on dm-crypt shows that cryption time can be reduced to 50% of general mode implementation + aes-aesni implementation. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: fpu - Add template for blkcipher touching FPUHuang Ying
Blkcipher touching FPU need to be enclosed by kernel_fpu_begin() and kernel_fpu_end(). If they are invoked in cipher algorithm implementation, they will be invoked for each block, so that performance will be hurt, because they are "slow" operations. This patch implements "fpu" template, which makes these operations to be invoked for each request. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: cryptd - Use nivcipher in cryptd_alloc_ablkcipher Huang Ying
Use crypto_alloc_base() instead of crypto_alloc_ablkcipher() to allocate underlying tfm in cryptd_alloc_ablkcipher. Because crypto_alloc_ablkcipher() prefer GENIV encapsulated crypto instead of raw one, while cryptd_alloc_ablkcipher needed the raw one. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: api - Use kzfreeJohannes Weiner
Use kzfree() instead of memset() + kfree(). Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-06-02crypto: tcrypt - Reduce stack sizeFrank Seidel
Applying kernel janitors todos (printk calls need KERN_* constants on linebeginnings, reduce stack footprint where possible) to tcrypts test_hash_speed (where stacks memory footprint was very high (on i386 1184 bytes to 160 now). Signed-off-by: Frank Seidel <frank@f-seidel.de> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-05-31crypto: hash - Fix handling of sg entry that crosses page boundaryHerbert Xu
A quirk that we've always supported is having an sg entry that's bigger than a page, or more generally an sg entry that crosses page boundaries. Even though it would be better to explicitly have to sg entries for this, we need to support it for the existing users, in particular, IPsec. The new ahash sg walking code did try to handle this, but there was a bug where we didn't increment the page so kept on walking on the first page over an dover again. This patch fixes it. Tested-by: Martin Willi <martin@strongswan.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-05-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: padlock - Revert aes-all alias to aes crypto: api - Fix algorithm module auto-loading crypto: eseqiv - Fix IV generation for sync algorithms crypto: ixp4xx - check firmware for crypto support
2009-04-21crypto: api - Fix algorithm module auto-loadingHerbert Xu
The commit a760a6656e6f00bb0144a42a048cf0266646e22c (crypto: api - Fix module load deadlock with fallback algorithms) broke the auto-loading of algorithms that require fallbacks. The problem is that the fallback mask check is missing an and which cauess bits that should be considered to interfere with the result. Reported-by: Chuck Ebbert <cebbert@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-04-15crypto: eseqiv - Fix IV generation for sync algorithmsSteffen Klassert
If crypto_ablkcipher_encrypt() returns synchronous, eseqiv_complete2() is called even if req->giv is already the pointer to the generated IV. The generated IV is overwritten with some random data in this case. This patch fixes this by calling eseqiv_complete2() just if the generated IV has to be copied to req->giv. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-04-03Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: dma: Add SoF and EoF debugging to ipu_idmac.c, minor cleanup dw_dmac: add cyclic API to DW DMA driver dmaengine: Add privatecnt to revert DMA_PRIVATE property dmatest: add dma interrupts and callbacks dmatest: add xor test dmaengine: allow dma support for async_tx to be toggled async_tx: provide __async_inline for HAS_DMA=n archs dmaengine: kill some unused headers dmaengine: initialize tx_list in dma_async_tx_descriptor_init dma: i.MX31 IPU DMA robustness improvements dma: improve section assignment in i.MX31 IPU DMA driver dma: ipu_idmac driver cosmetic clean-up dmaengine: fail device registration if channel registration fails
2009-04-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: ixp4xx - Fix handling of chained sg buffers crypto: shash - Fix unaligned calculation with short length hwrng: timeriomem - Use phys address rather than virt
2009-04-03Merge branch 'for-linus' of git://neil.brown.name/mdLinus Torvalds
* 'for-linus' of git://neil.brown.name/md: (53 commits) md/raid5 revise rules for when to update metadata during reshape md/raid5: minor code cleanups in make_request. md: remove CONFIG_MD_RAID_RESHAPE config option. md/raid5: be more careful about write ordering when reshaping. md: don't display meaningless values in sysfs files resync_start and sync_speed md/raid5: allow layout and chunksize to be changed on active array. md/raid5: reshape using largest of old and new chunk size md/raid5: prepare for allowing reshape to change layout md/raid5: prepare for allowing reshape to change chunksize. md/raid5: clearly differentiate 'before' and 'after' stripes during reshape. Documentation/md.txt update md: allow number of drives in raid5 to be reduced md/raid5: change reshape-progress measurement to cope with reshaping backwards. md: add explicit method to signal the end of a reshape. md/raid5: enhance raid5_size to work correctly with negative delta_disks md/raid5: drop qd_idx from r6_state md/raid6: move raid6 data processing to raid6_pq.ko md: raid5 run(): Fix max_degraded for raid level 4. md: 'array_size' sysfs attribute md: centralize ->array_sectors modifications ...
2009-03-31md: move lots of #include lines out of .h files and into .cNeilBrown
This makes the includes more explicit, and is preparation for moving md_k.h to drivers/md/md.h Remove include/raid/md.h as its only remaining use was to #include other files. Signed-off-by: NeilBrown <neilb@suse.de>
2009-03-27crypto: shash - Fix unaligned calculation with short lengthYehuda Sadeh
When the total length is shorter than the calculated number of unaligned bytes, the call to shash->update breaks. For example, calling crc32c on unaligned buffer with length of 1 can result in a system crash. Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-03-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (29 commits) crypto: sha512-s390 - Add missing block size hwrng: timeriomem - Breaks an allyesconfig build on s390: nlattr: Fix build error with NET off crypto: testmgr - add zlib test crypto: zlib - New zlib crypto module, using pcomp crypto: testmgr - Add support for the pcomp interface crypto: compress - Add pcomp interface netlink: Move netlink attribute parsing support to lib crypto: Fix dead links hwrng: timeriomem - New driver crypto: chainiv - Use kcrypto_wq instead of keventd_wq crypto: cryptd - Per-CPU thread implementation based on kcrypto_wq crypto: api - Use dedicated workqueue for crypto subsystem crypto: testmgr - Test skciphers with no IVs crypto: aead - Avoid infinite loop when nivaead fails selftest crypto: skcipher - Avoid infinite loop when cipher fails selftest crypto: api - Fix crypto_alloc_tfm/create_create_tfm return convention crypto: api - crypto_alg_mod_lookup either tested or untested crypto: amcc - Add crypt4xx driver crypto: ansi_cprng - Add maintainer ...
2009-03-25dmaengine: allow dma support for async_tx to be toggledDan Williams
Provide a config option for blocking the allocation of dma channels to the async_tx api. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-03-25async_tx: provide __async_inline for HAS_DMA=n archsDan Williams
To allow an async_tx routine to be compiled away on HAS_DMA=n arch it needs to be declared __always_inline otherwise the compiler may emit code and cause a link error. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-03-04crypto: testmgr - add zlib testGeert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-03-04crypto: zlib - New zlib crypto module, using pcompGeert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: James Morris <jmorris@namei.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>