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2018-06-13treewide: kmalloc() -> kmalloc_array()Kees Cook1-1/+2
The kmalloc() function has a 2-factor argument form, kmalloc_array(). This patch replaces cases of: kmalloc(a * b, gfp) with: kmalloc_array(a * b, gfp) as well as handling cases of: kmalloc(a * b * c, gfp) with: kmalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kmalloc_array(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kmalloc(4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The tools/ directory was manually excluded, since it has its own implementation of kmalloc(). The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kmalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kmalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kmalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(u8) * COUNT + COUNT , ...) | kmalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kmalloc( - sizeof(char) * COUNT + COUNT , ...) | kmalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kmalloc + kmalloc_array ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kmalloc + kmalloc_array ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kmalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kmalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kmalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kmalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kmalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kmalloc(C1 * C2 * C3, ...) | kmalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kmalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kmalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kmalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kmalloc(sizeof(THING) * C2, ...) | kmalloc(sizeof(TYPE) * C2, ...) | kmalloc(C1 * C2 * C3, ...) | kmalloc(C1 * C2, ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - (E1) * E2 + E1, E2 , ...) | - kmalloc + kmalloc_array ( - (E1) * (E2) + E1, E2 , ...) | - kmalloc + kmalloc_array ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-05-30crypto: testmgr - eliminate redundant decryption test vectorsEric Biggers1-299/+110
Currently testmgr has separate encryption and decryption test vectors for symmetric ciphers. That's massively redundant, since with few exceptions (mostly mistakes, apparently), all decryption tests are identical to the encryption tests, just with the input/result flipped. Therefore, eliminate the redundancy by removing the decryption test vectors and updating testmgr to test both encryption and decryption using what used to be the encryption test vectors. Naming is adjusted accordingly: each cipher_testvec now has a 'ptext' (plaintext), 'ctext' (ciphertext), and 'len' instead of an 'input', 'result', 'ilen', and 'rlen'. Note that it was always the case that 'ilen == rlen'. AES keywrap ("kw(aes)") is special because its IV is generated by the encryption. Previously this was handled by specifying 'iv_out' for encryption and 'iv' for decryption. To make it work cleanly with only one set of test vectors, put the IV in 'iv', remove 'iv_out', and add a boolean that indicates that the IV is generated by the encryption. In total, this removes over 10000 lines from testmgr.h, with no reduction in test coverage since prior patches already copied the few unique decryption test vectors into the encryption test vectors. This covers all algorithms that used 'struct cipher_testvec', e.g. any block cipher in the ECB, CBC, CTR, XTS, LRW, CTS-CBC, PCBC, OFB, or keywrap modes, and Salsa20 and ChaCha20. No change is made to AEAD tests, though we probably can eliminate a similar redundancy there too. The testmgr.h portion of this patch was automatically generated using the following awk script, with some slight manual fixups on top (updated 'struct cipher_testvec' definition, updated a few comments, and fixed up the AES keywrap test vectors): BEGIN { OTHER = 0; ENCVEC = 1; DECVEC = 2; DECVEC_TAIL = 3; mode = OTHER } /^static const struct cipher_testvec.*_enc_/ { sub("_enc", ""); mode = ENCVEC } /^static const struct cipher_testvec.*_dec_/ { mode = DECVEC } mode == ENCVEC && !/\.ilen[[:space:]]*=/ { sub(/\.input[[:space:]]*=$/, ".ptext =") sub(/\.input[[:space:]]*=/, ".ptext\t=") sub(/\.result[[:space:]]*=$/, ".ctext =") sub(/\.result[[:space:]]*=/, ".ctext\t=") sub(/\.rlen[[:space:]]*=/, ".len\t=") print } mode == DECVEC_TAIL && /[^[:space:]]/ { mode = OTHER } mode == OTHER { print } mode == ENCVEC && /^};/ { mode = OTHER } mode == DECVEC && /^};/ { mode = DECVEC_TAIL } Note that git's default diff algorithm gets confused by the testmgr.h portion of this patch, and reports too many lines added and removed. It's better viewed with 'git diff --minimal' (or 'git show --minimal'), which reports "2 files changed, 919 insertions(+), 11723 deletions(-)". Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-05-26crypto: testmgr - fix testing OPTIONAL_KEY hash algorithmsEric Biggers1-7/+43
Since testmgr uses a single tfm for all tests of each hash algorithm, once a key is set the tfm won't be unkeyed anymore. But with crc32 and crc32c, the key is really the "default initial state" and is optional; those algorithms should have both keyed and unkeyed test vectors, to verify that implementations use the correct default key. Simply listing the unkeyed test vectors first isn't guaranteed to work yet because testmgr makes multiple passes through the test vectors. crc32c does have an unkeyed test vector listed first currently, but it only works by chance because the last crc32c test vector happens to use a key that is the same as the default key. Therefore, teach testmgr to split hash test vectors into unkeyed and keyed sections, and do all the unkeyed ones before the keyed ones. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-05-26crypto: testmgr - remove bfin_crc "hmac(crc32)" test vectorsEric Biggers1-6/+0
The Blackfin CRC driver was removed by commit 9678a8dc53c1 ("crypto: bfin_crc - remove blackfin CRC driver"), but it was forgotten to remove the corresponding "hmac(crc32)" test vectors. I see no point in keeping them since nothing else appears to implement or use "hmac(crc32)", which isn't an algorithm that makes sense anyway because HMAC is meant to be used with a cryptographically secure hash function, which CRC's are not. Thus, remove the unneeded test vectors. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-05-18crypto: testmgr - Add test vectors for MORUSOndrej Mosnacek1-0/+18
This patch adds test vectors for MORUS-640 and MORUS-1280. The test vectors were generated using the reference implementation from SUPERCOP (see code comments for more details). Signed-off-by: Ondrej Mosnacek <omosnacek@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-05-18crypto: testmgr - Add test vectors for AEGISOndrej Mosnacek1-0/+27
This patch adds test vectors for the AEGIS family of AEAD algorithms (AEGIS-128, AEGIS-128L, and AEGIS-256). The test vectors were generated using the reference implementation from SUPERCOP (see code comments for more details). Signed-off-by: Ondrej Mosnacek <omosnacek@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-05-18crypto: testmgr - reorder paes test lexicographicallyGilad Ben-Yossef1-22/+22
Due to a snafu "paes" testmgr tests were not ordered lexicographically, which led to boot time warnings. Reorder the tests as needed. Fixes: a794d8d ("crypto: ccree - enable support for hardware keys") Reported-by: Abdul Haleem <abdhalee@linux.vnet.ibm.com> Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> Tested-by: Abdul Haleem <abdhalee@linux.vnet.ibm.com> Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-05-05crypto: ccree - enable support for hardware keysGilad Ben-Yossef1-0/+43
Enable CryptoCell support for hardware keys. Hardware keys are regular AES keys loaded into CryptoCell internal memory via firmware, often from secure boot ROM or hardware fuses at boot time. As such, they can be used for enc/dec purposes like any other key but cannot (read: extremely hard to) be extracted since since they are not available anywhere in RAM during runtime. The mechanism has some similarities to s390 secure keys although the keys are not wrapped or sealed, but simply loaded offline. The interface was therefore modeled based on the s390 secure keys support. Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-04-20crypto: testmgr - Allow different compression resultsMahipal Challa1-13/+37
The following error is triggered by the ThunderX ZIP driver if the testmanager is enabled: [ 199.069437] ThunderX-ZIP 0000:03:00.0: Found ZIP device 0 177d:a01a on Node 0 [ 199.073573] alg: comp: Compression test 1 failed for deflate-generic: output len = 37 The reason for this error is the verification of the compression results. Verifying the compression result only works if all algorithm parameters are identical, in this case to the software implementation. Different compression engines like the ThunderX ZIP coprocessor might yield different compression results by tuning the algorithm parameters. In our case the compressed result is shorter than the test vector. We should not forbid different compression results but only check that compression -> decompression yields the same result. This is done already in the acomp test. Do something similar for test_comp(). Signed-off-by: Mahipal Challa <mchalla@cavium.com> Signed-off-by: Balakrishna Bhamidipati <bbhamidipati@cavium.com> [jglauber@cavium.com: removed unrelated printk changes, rewrote commit msg, fixed whitespace and unneeded initialization] Signed-off-by: Jan Glauber <jglauber@cavium.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-04-20crypto: zstd - Add zstd supportNick Terrell1-0/+10
Adds zstd support to crypto and scompress. Only supports the default level. Previously we held off on this patch, since there weren't any users. Now zram is ready for zstd support, but depends on CONFIG_CRYPTO_ZSTD, which isn't defined until this patch is in. I also see a patch adding zstd to pstore [0], which depends on crypto zstd. [0] lkml.kernel.org/r/9c9416b2dff19f05fb4c35879aaa83d11ff72c92.1521626182.git.geliangtang@gmail.com Signed-off-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-03-16crypto: testmgr - introduce SM4 testsGilad Ben-Yossef1-0/+9
Add testmgr tests for the newly introduced SM4 ECB symmetric cipher. Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-02-22crypto: speck - add test vectors for Speck64-XTSEric Biggers1-0/+9
Add test vectors for Speck64-XTS, generated in userspace using C code. The inputs were borrowed from the AES-XTS test vectors, with key lengths adjusted. xts-speck64-neon passes these tests. However, they aren't currently applicable for the generic XTS template, as that only supports a 128-bit block size. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-02-22crypto: speck - add test vectors for Speck128-XTSEric Biggers1-0/+9
Add test vectors for Speck128-XTS, generated in userspace using C code. The inputs were borrowed from the AES-XTS test vectors. Both xts(speck128-generic) and xts-speck128-neon pass these tests. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-02-22crypto: speck - add support for the Speck block cipherEric Biggers1-0/+18
Add a generic implementation of Speck, including the Speck128 and Speck64 variants. Speck is a lightweight block cipher that can be much faster than AES on processors that don't have AES instructions. We are planning to offer Speck-XTS (probably Speck128/256-XTS) as an option for dm-crypt and fscrypt on Android, for low-end mobile devices with older CPUs such as ARMv7 which don't have the Cryptography Extensions. Currently, such devices are unencrypted because AES is not fast enough, even when the NEON bit-sliced implementation of AES is used. Other AES alternatives such as Twofish, Threefish, Camellia, CAST6, and Serpent aren't fast enough either; it seems that only a modern ARX cipher can provide sufficient performance on these devices. This is a replacement for our original proposal (https://patchwork.kernel.org/patch/10101451/) which was to offer ChaCha20 for these devices. However, the use of a stream cipher for disk/file encryption with no space to store nonces would have been much more insecure than we thought initially, given that it would be used on top of flash storage as well as potentially on top of F2FS, neither of which is guaranteed to overwrite data in-place. Speck has been somewhat controversial due to its origin. Nevertheless, it has a straightforward design (it's an ARX cipher), and it appears to be the leading software-optimized lightweight block cipher currently, with the most cryptanalysis. It's also easy to implement without side channels, unlike AES. Moreover, we only intend Speck to be used when the status quo is no encryption, due to AES not being fast enough. We've also considered a novel length-preserving encryption mode based on ChaCha20 and Poly1305. While theoretically attractive, such a mode would be a brand new crypto construction and would be more complicated and difficult to implement efficiently in comparison to Speck-XTS. There is confusion about the byte and word orders of Speck, since the original paper doesn't specify them. But we have implemented it using the orders the authors recommended in a correspondence with them. The test vectors are taken from the original paper but were mapped to byte arrays using the recommended byte and word orders. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-01-25crypto: testmgr - test misuse of result in ahashKamil Konieczny1-0/+39
Async hash operations can use result pointer in final/finup/digest, but not in init/update/export/import, so test it for misuse. Signed-off-by: Kamil Konieczny <k.konieczny@partner.samsung.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-01-12crypto: testmgr - change `guard` to unsigned charJoey Pabalinas1-1/+1
When char is signed, storing the values 0xba (186) and 0xad (173) in the `guard` array produces signed overflow. Change the type of `guard` to static unsigned char to correct undefined behavior and reduce function stack usage. Signed-off-by: Joey Pabalinas <joeypabalinas@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03crypto: testmgr - move to generic async completionGilad Ben-Yossef1-138/+66
testmgr is starting async. crypto ops and waiting for them to complete. Move it over to generic code doing the same. This also provides a test of the generic crypto async. wait code. Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-22crypto: sm3 - add SM3 test vectorsGilad Ben-Yossef1-0/+6
Add testmgr and tcrypt tests and vectors for SM3 secure hash. Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-06-28crypto: testmgr - Reenable sha1/aes in FIPS modeHerbert Xu1-0/+1
The combination of sha1 and aes was disabled in FIPS Mode accidentally. This patch reenables it. Fixes: 284a0f6e87b0 ("crypto: testmgr - Disable fips-allowed for...") Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Stephan Müller <smueller@chronox.de>
2017-06-20crypto: testmgr - add testvector for pkcs1pad(rsa)Stephan Mueller1-4/+29
The PKCS#1 RSA implementation is provided with a self test with RSA 2048 and SHA-256. This self test implicitly covers other RSA keys and other hashes. Also, this self test implies that the pkcs1pad(rsa) is FIPS 140-2 compliant. Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-06-19crypto: testmgr - use consistent format for errorsGilad Ben-Yossef1-9/+9
Fix inconsistent format and spelling in hash tests error messages. Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-06-10crypto: testmgr - add genkey kpp testTudor-Dan Ambarus1-11/+65
The test considers a party that already has a private-public key pair and a party that provides a NULL key. The kernel will generate the private-public key pair for the latter, computes the shared secret on both ends and verifies if it's the same. The explicit private-public key pair was copied from the previous test vector. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-04-24crypto: scomp - add support for deflate rfc1950 (zlib)Giovanni Cabiddu1-0/+10
Add scomp backend for zlib-deflate compression algorithm. This backend outputs data using the format defined in rfc1950 (raw deflate surrounded by zlib header and footer). Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-04-24crypto: testmgr - Allow ecb(cipher_null) in FIPS modeMilan Broz1-0/+1
The cipher_null is not a real cipher, FIPS mode should not restrict its use. It is used for several tests (for example in cryptsetup testsuite) and also temporarily for reencryption of not yet encrypted device in cryptsetup-reencrypt tool. Problem is easily reproducible with cryptsetup benchmark -c null Signed-off-by: Milan Broz <gmazyland@gmail.com> Acked-by: Stephan Müller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-04-21crypto: testmgr - replace compression known answer testGiovanni Cabiddu1-3/+26
Compression implementations might return valid outputs that do not match what specified in the test vectors. For this reason, the testmgr might report that a compression implementation failed the test even if the data produced by the compressor is correct. This implements a decompress-and-verify test for acomp compression tests rather than a known answer test. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-03-24crypto: testmgr - mark ctr(des3_ede) as fips_allowedMarcelo Cerri1-0/+1
3DES is missing the fips_allowed flag for CTR mode. Signed-off-by: Marcelo Henrique Cerri <marcelo.cerri@canonical.com> Acked-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-03-09crypto: testmgr - constify all test vectorsEric Biggers1-30/+41
Cryptographic test vectors should never be modified, so constify them to enforce this at both compile-time and run-time. This moves a significant amount of data from .data to .rodata when the crypto tests are enabled. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-02-11crypto: testmgr - add test cases for cbcmac(aes)Ard Biesheuvel1-0/+7
In preparation of splitting off the CBC-MAC transform in the CCM driver into a separate algorithm, define some test cases for the AES incarnation of cbcmac. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-01-13crypto: testmgr - use calculated count for number of test vectorsArd Biesheuvel1-831/+202
When working on AES in CCM mode for ARM, my code passed the internal tcrypt test before I had even bothered to implement the AES-192 and AES-256 code paths, which is strange because the tcrypt does contain AES-192 and AES-256 test vectors for CCM. As it turned out, the define AES_CCM_ENC_TEST_VECTORS was out of sync with the actual number of test vectors, causing only the AES-128 ones to be executed. So get rid of the defines, and wrap the test vector references in a macro that calculates the number of vectors automatically. The following test vector counts were out of sync with the respective defines: BF_CTR_ENC_TEST_VECTORS 2 -> 3 BF_CTR_DEC_TEST_VECTORS 2 -> 3 TF_CTR_ENC_TEST_VECTORS 2 -> 3 TF_CTR_DEC_TEST_VECTORS 2 -> 3 SERPENT_CTR_ENC_TEST_VECTORS 2 -> 3 SERPENT_CTR_DEC_TEST_VECTORS 2 -> 3 AES_CCM_ENC_TEST_VECTORS 8 -> 14 AES_CCM_DEC_TEST_VECTORS 7 -> 17 AES_CCM_4309_ENC_TEST_VECTORS 7 -> 23 AES_CCM_4309_DEC_TEST_VECTORS 10 -> 23 CAMELLIA_CTR_ENC_TEST_VECTORS 2 -> 3 CAMELLIA_CTR_DEC_TEST_VECTORS 2 -> 3 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-01-12crypto: testmgr - Allocate only the required output size for hash testsAndrew Lutomirski1-4/+5
There are some hashes (e.g. sha224) that have some internal trickery to make sure that only the correct number of output bytes are generated. If something goes wrong, they could potentially overrun the output buffer. Make the test more robust by allocating only enough space for the correct output size so that memory debugging will catch the error if the output is overrun. Tested by intentionally breaking sha224 to output all 256 internally-generated bits while running on KASAN. Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-01-12crypto: testmgr - use kmemdup instead of kmalloc+memcpyEric Biggers1-4/+2
It's recommended to use kmemdup instead of kmalloc followed by memcpy. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-12-27crypto: testmgr - Use heap buffer for acomp test inputLaura Abbott1-2/+28
Christopher Covington reported a crash on aarch64 on recent Fedora kernels: kernel BUG at ./include/linux/scatterlist.h:140! Internal error: Oops - BUG: 0 [#1] PREEMPT SMP Modules linked in: CPU: 2 PID: 752 Comm: cryptomgr_test Not tainted 4.9.0-11815-ge93b1cc #162 Hardware name: linux,dummy-virt (DT) task: ffff80007c650080 task.stack: ffff800008910000 PC is at sg_init_one+0xa0/0xb8 LR is at sg_init_one+0x24/0xb8 ... [<ffff000008398db8>] sg_init_one+0xa0/0xb8 [<ffff000008350a44>] test_acomp+0x10c/0x438 [<ffff000008350e20>] alg_test_comp+0xb0/0x118 [<ffff00000834f28c>] alg_test+0x17c/0x2f0 [<ffff00000834c6a4>] cryptomgr_test+0x44/0x50 [<ffff0000080dac70>] kthread+0xf8/0x128 [<ffff000008082ec0>] ret_from_fork+0x10/0x50 The test vectors used for input are part of the kernel image. These inputs are passed as a buffer to sg_init_one which eventually blows up with BUG_ON(!virt_addr_valid(buf)). On arm64, virt_addr_valid returns false for the kernel image since virt_to_page will not return the correct page. Fix this by copying the input vectors to heap buffer before setting up the scatterlist. Reported-by: Christopher Covington <cov@codeaurora.org> Fixes: d7db7a882deb ("crypto: acomp - update testmgr with support for acomp") Signed-off-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-12-08crypto: testmgr - fix overlap in chunked tests againArd Biesheuvel1-1/+1
Commit 7e4c7f17cde2 ("crypto: testmgr - avoid overlap in chunked tests") attempted to address a problem in the crypto testmgr code where chunked test cases are copied to memory in a way that results in overlap. However, the fix recreated the exact same issue for other chunked tests, by putting IDX3 within 492 bytes of IDX1, which causes overlap if the first chunk exceeds 492 bytes, which is the case for at least one of the xts(aes) test cases. So increase IDX3 by another 1000 bytes. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-12-07crypto: testmgr - avoid overlap in chunked testsArd Biesheuvel1-1/+1
The IDXn offsets are chosen such that tap values (which may go up to 255) end up overlapping in the xbuf allocation. In particular, IDX1 and IDX3 are too close together, so update IDX3 to avoid this issue. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-28crypto: testmgr - don't use stack buffer in test_acomp()Eric Biggers1-3/+8
With virtually-mapped stacks (CONFIG_VMAP_STACK=y), using the scatterlist crypto API with stack buffers is not allowed, and with appropriate debugging options will cause the 'BUG_ON(!virt_addr_valid(buf));' in sg_set_buf() to be triggered. Use a heap buffer instead. Fixes: d7db7a882deb ("crypto: acomp - update testmgr with support for acomp") Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-28crypto: testmgr - Do not test internal algorithmsHerbert Xu1-144/+9
Currently we manually filter out internal algorithms using a list in testmgr. This is dangerous as internal algorithms cannot be safely used even by testmgr. This patch ensures that they're never processed by testmgr at all. This patch also removes an obsolete bypass for nivciphers which no longer exist. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-10-25crypto: acomp - update testmgr with support for acompGiovanni Cabiddu1-13/+145
Add tests to the test manager for algorithms exposed through acomp. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-10-02crypto: testmgr - add guard to dst buffer for ahash_exportJan Stancek1-1/+4
Add a guard to 'state' buffer and warn if its consistency after call to crypto_ahash_export() changes, so that any write that goes beyond advertised statesize (and thus causing potential memory corruption [1]) is more visible. [1] https://marc.info/?l=linux-crypto-vger&m=147467656516085 Signed-off-by: Jan Stancek <jstancek@redhat.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Marcelo Cerri <marcelo.cerri@canonical.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-08-31crypto: FIPS - allow tests to be disabled in FIPS modeStephan Mueller1-0/+9
In FIPS mode, additional restrictions may apply. If these restrictions are violated, the kernel will panic(). This patch allows test vectors for symmetric ciphers to be marked as to be skipped in FIPS mode. Together with the patch, the XTS test vectors where the AES key is identical to the tweak key is disabled in FIPS mode. This test vector violates the FIPS requirement that both keys must be different. Reported-by: Tapas Sarangi <TSarangi@trustwave.com> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-08-09crypto: testmgr - fix !x==y confusionYanjiang Jin1-5/+5
"if (!ret == template[i].fail)" is confusing to compilers (gcc5): crypto/testmgr.c: In function '__test_aead': crypto/testmgr.c:531:12: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses] if (!ret == template[i].fail) { ^ Let there be 'if (template[i].fail == !ret) '. Signed-off-by: Yanjiang Jin <yanjiang.jin@windriver.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-19crypto: testmgr - Print akcipher algorithm nameHerbert Xu1-2/+4
When an akcipher test fails, we don't know which algorithm failed because the name is not printed. This patch fixes this. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-05crypto: testmgr - Set err before proceedingSalvatore Benedetto1-0/+1
Report correct error in case of failure Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-01crypto: sha3 - Add HMAC-SHA3 test modes and test vectorsraveendra padasalagi1-0/+40
This patch adds HMAC-SHA3 test modes in tcrypt module and related test vectors. Signed-off-by: Raveendra Padasalagi <raveendra.padasalagi@broadcom.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-01crypto: testmgr - Allow leading zeros in RSAHerbert Xu1-27/+24
This patch allows RSA implementations to produce output with leading zeroes. testmgr will skip leading zeroes when comparing the output. This patch also tries to make the RSA test function generic enough to potentially handle other akcipher algorithms. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-23crypto: ecdh - Add ECDH software supportSalvatore Benedetto1-0/+10
* Implement ECDH under kpp API * Provide ECC software support for curve P-192 and P-256. * Add kpp test for ECDH with data generated by OpenSSL Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-23crypto: dh - Add DH software implementationSalvatore Benedetto1-0/+144
* Implement MPI based Diffie-Hellman under kpp API * Test provided uses data generad by OpenSSL Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-20crypto: sha3 - Add SHA-3 Test's in tcryptraveendra padasalagi1-0/+40
Added support for SHA-3 algorithm test's in tcrypt module and related test vectors. Signed-off-by: Raveendra Padasalagi <raveendra.padasalagi@broadcom.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-05-17Merge branch 'linus' of ↵Linus Torvalds1-0/+9
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto update from Herbert Xu: "API: - Crypto self tests can now be disabled at boot/run time. - Add async support to algif_aead. Algorithms: - A large number of fixes to MPI from Nicolai Stange. - Performance improvement for HMAC DRBG. Drivers: - Use generic crypto engine in omap-des. - Merge ppc4xx-rng and crypto4xx drivers. - Fix lockups in sun4i-ss driver by disabling IRQs. - Add DMA engine support to ccp. - Reenable talitos hash algorithms. - Add support for Hisilicon SoC RNG. - Add basic crypto driver for the MXC SCC. Others: - Do not allocate crypto hash tfm in NORECLAIM context in ecryptfs" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (77 commits) crypto: qat - change the adf_ctl_stop_devices to void crypto: caam - fix caam_jr_alloc() ret code crypto: vmx - comply with ABIs that specify vrsave as reserved. crypto: testmgr - Add a flag allowing the self-tests to be disabled at runtime. crypto: ccp - constify ccp_actions structure crypto: marvell/cesa - Use dma_pool_zalloc crypto: qat - make adf_vf_isr.c dependant on IOV config crypto: qat - Fix typo in comments lib: asn1_decoder - add MODULE_LICENSE("GPL") crypto: omap-sham - Use dma_request_chan() for requesting DMA channel crypto: omap-des - Use dma_request_chan() for requesting DMA channel crypto: omap-aes - Use dma_request_chan() for requesting DMA channel crypto: omap-des - Integrate with the crypto engine framework crypto: s5p-sss - fix incorrect usage of scatterlists api crypto: s5p-sss - Fix missed interrupts when working with 8 kB blocks crypto: s5p-sss - Use common BIT macro crypto: mxc-scc - fix unwinding in mxc_scc_crypto_register() crypto: mxc-scc - signedness bugs in mxc_scc_ablkcipher_req_init() crypto: talitos - fix ahash algorithms registration crypto: ccp - Ensure all dependencies are specified ...
2016-05-09crypto: testmgr - Use kmalloc memory for RSA inputHerbert Xu1-5/+22
As akcipher uses an SG interface, you must not use vmalloc memory as input for it. This patch fixes testmgr to copy the vmalloc test vectors to kmalloc memory before running the test. This patch also removes a superfluous sg_virt call in do_test_rsa. Cc: <stable@vger.kernel.org> Reported-by: Anatoly Pugachev <matorola@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-05-05crypto: testmgr - Add a flag allowing the self-tests to be disabled at runtime.Richard W.M. Jones1-0/+9
Running self-tests for a short-lived KVM VM takes 28ms on my laptop. This commit adds a flag 'cryptomgr.notests' which allows them to be disabled. However if fips=1 as well, we ignore this flag as FIPS mode mandates that the self-tests are run. Signed-off-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>