kernel.git/drivers/crypto/caam/caamalg.c, branch linux-4.7.y

crypto: caam - fix IV loading for authenc (giv)decryption

2016-09-15T06:20:29Z

commit 8b18e2359aff2ab810aba84cebffc9da07fef78f upstream. For algorithms that implement IV generators before the crypto ops, the IV needed for decryption is initially located in req->src scatterlist, not in req->iv. Avoid copying the IV into req->iv by modifying the (givdecrypt) descriptors to load it directly from req->src. aead_givdecrypt() is no longer needed and goes away. Fixes: 479bcc7c5b9e ("crypto: caam - Convert authenc to new AEAD interface") Signed-off-by: Horia Geantă Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman

crypto: caam - defer aead_set_sh_desc in case of zero authsize

2016-09-07T06:34:45Z

commit 2fdea258fde036a87d3396ec9c0ef66f10768530 upstream. To be able to generate shared descriptors for AEAD, the authentication size needs to be known. However, there is no imposed order of calling .setkey, .setauthsize callbacks. Thus, in case authentication size is not known at .setkey time, defer it until .setauthsize is called. The authsize != 0 check was incorrectly removed when converting the driver to the new AEAD interface. Fixes: 479bcc7c5b9e ("crypto: caam - Convert authenc to new AEAD interface") Signed-off-by: Horia Geantă Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman

crypto: caam - fix echainiv(authenc) encrypt shared descriptor

2016-09-07T06:34:45Z

commit 1d2d87e81ea21f64c19b95ef228b865a6880e17e upstream. There are a few things missed by the conversion to the new AEAD interface: 1 - echainiv(authenc) encrypt shared descriptor The shared descriptor is incorrect: due to the order of operations, at some point in time MATH3 register is being overwritten. 2 - buffer used for echainiv(authenc) encrypt shared descriptor Encrypt and givencrypt shared descriptors (for AEAD ops) are mutually exclusive and thus use the same buffer in context state: sh_desc_enc. However, there's one place missed by s/sh_desc_givenc/sh_desc_enc, leading to errors when echainiv(authenc(...)) algorithms are used: DECO: desc idx 14: Header Error. Invalid length or parity, or certain other problems. While here, also fix a typo: dma_mapping_error() is checking for validity of sh_desc_givenc_dma instead of sh_desc_enc_dma. Fixes: 479bcc7c5b9e ("crypto: caam - Convert authenc to new AEAD interface") Signed-off-by: Horia Geantă Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman

crypto: caam - add support for acipher xts(aes)

2015-10-08T13:42:20Z

Add support for AES working in XEX-based Tweaked-codebook mode with ciphertext Stealing (XTS) sector index - HW limitation: CAAM device supports sector index of only 8 bytes to be used for sector index inside IV, instead of whole 16 bytes received on request. This represents 2 ^ 64 = 16,777,216 Tera of possible values for sector index. Signed-off-by: Cristian Hristea Signed-off-by: Horia Geanta Signed-off-by: Alex Porosanu Signed-off-by: Catalin Vasile Signed-off-by: Herbert Xu

crypto: caam - dma_map_sg can handle chained SG

2015-10-01T13:56:56Z

The caam driver use two dma_map_sg path according to SG are chained or not. Since dma_map_sg can handle both case, clean the code with all references to sg chained. Thus removing dma_map_sg_chained, dma_unmap_sg_chained and __sg_count functions. Signed-off-by: LABBE Corentin Signed-off-by: Herbert Xu

crypto: caam - Use the preferred style for memory allocations

2015-08-24T14:07:42Z

"The preferred form for passing a size of a struct is the following: p = kmalloc(sizeof(*p), ...); .... The preferred form for allocating a zeroed array is the following: p = kcalloc(n, sizeof(...), ...); " ,so do as suggested. Signed-off-by: Fabio Estevam Reviewed-by: Horia Geant? Signed-off-by: Herbert Xu

crypto: aead - Remove CRYPTO_ALG_AEAD_NEW flag

2015-08-17T08:53:53Z

This patch removes the CRYPTO_ALG_AEAD_NEW flag now that everyone has been converted. Signed-off-by: Herbert Xu

crypto: caam - Detect hardware features during algorithm registration

2015-08-10T15:19:04Z

Register only algorithms supported by CAAM hardware, using the CHA version and instantiation registers to identify hardware capabilities. Signed-off-by: Victoria Milhoan Tested-by: Horia Geantă Signed-off-by: Herbert Xu

crypto: caam - Change kmalloc to kzalloc to avoid residual data

2015-08-10T15:18:58Z

Since fields must be ORed in to operate correctly using any order of operations, changed allocations of the combination of extended descriptor structs + hardware scatterlists to use kzalloc() instead of kmalloc(), so as to ensure that residue data would not be ORed in with the correct data. Signed-off-by: Steve Cornelius Signed-off-by: Victoria Milhoan Tested-by: Horia Geantă Signed-off-by: Herbert Xu

crypto: caam - Convert authenc to new AEAD interface

2015-08-04T12:45:31Z

This patch converts the authenc implementations in caam to the new AEAD interface. The biggest change is that seqiv no longer generates a random IV. Instead the IPsec sequence number is used as the IV. Signed-off-by: Herbert Xu