kernel/linux.git/include/crypto/internal/hash.h, branch v6.6.131

crypto: hash - Make crypto_ahash_alg helper available

2023-05-12T10:48:01+00:00

Move the crypto_ahash_alg helper into include/crypto/internal so that drivers can use it. Signed-off-by: Herbert Xu

crypto: hash - Add statesize to crypto_ahash

2023-05-12T10:48:01+00:00

As ahash drivers may need to use fallbacks, their state size is thus variable. Deal with this by making it an attribute of crypto_ahash. Signed-off-by: Herbert Xu

crypto: hash - Add crypto_clone_ahash/shash

2023-04-20T10:20:04+00:00

This patch adds the helpers crypto_clone_ahash and crypto_clone_shash. They are the hash-specific counterparts of crypto_clone_tfm. This allows code paths that cannot otherwise allocate a hash tfm object to do so. Once a new tfm has been obtained its key could then be changed without impacting other users. Note that only algorithms that implement clone_tfm can be cloned. However, all keyless hashes can be cloned by simply reusing the tfm object. Signed-off-by: Herbert Xu Reviewed-by: Simon Horman Signed-off-by: Herbert Xu

crypto: hash - Use crypto_request_complete

2023-02-13T10:34:48+00:00

Use the crypto_request_complete helper instead of calling the completion function directly. This patch also removes the voodoo programming previously used for unaligned ahash operations and replaces it with a sub-request. Signed-off-by: Herbert Xu

crypto: hash - Add ctx helpers with DMA alignment

2022-12-02T10:12:40+00:00

This patch adds helpers to access the ahash context structure and request context structure with an added alignment for DMA access. Signed-off-by: Herbert Xu

Revert "crypto: shash - avoid comparing pointers to exported functions under CFI"

2022-11-25T09:39:19+00:00

This reverts commit 22ca9f4aaf431a9413dcc115dd590123307f274f because CFI no longer breaks cross-module function address equality, so crypto_shash_alg_has_setkey() can now be an inline function like before. This commit should not be backported to kernels that don't have the new CFI implementation. Acked-by: Peter Zijlstra (Intel) Reviewed-by: Sami Tolvanen Signed-off-by: Eric Biggers Signed-off-by: Herbert Xu

crypto: shash - avoid comparing pointers to exported functions under CFI

2021-06-17T07:07:31+00:00

crypto_shash_alg_has_setkey() is implemented by testing whether the .setkey() member of a struct shash_alg points to the default version, called shash_no_setkey(). As crypto_shash_alg_has_setkey() is a static inline, this requires shash_no_setkey() to be exported to modules. Unfortunately, when building with CFI, function pointers are routed via CFI stubs which are private to each module (or to the kernel proper) and so this function pointer comparison may fail spuriously. Let's fix this by turning crypto_shash_alg_has_setkey() into an out of line function. Cc: Sami Tolvanen Cc: Eric Biggers Signed-off-by: Ard Biesheuvel Reviewed-by: Eric Biggers Reviewed-by: Sami Tolvanen Signed-off-by: Herbert Xu

crypto: ahash - Add ahash_alg_instance

2020-08-28T06:58:28+00:00

This patch adds the helper ahash_alg_instance which is used to convert a crypto_ahash object into its corresponding ahash_instance. Signed-off-by: Herbert Xu

crypto: hash - Remove unused async iterators

2020-08-21T04:47:50+00:00

Revert "crypto: hash - Add real ahash walk interface" This reverts commit 75ecb231ff45b54afa9f4ec9137965c3c00868f4. The callers of the functions in this commit were removed in ab8085c130ed Remove these unused calls. Fixes: ab8085c130ed ("crypto: x86 - remove SHA multibuffer routines and mcryptd") Cc: Ard Biesheuvel Signed-off-by: Ira Weiny Signed-off-by: Herbert Xu

crypto: shash - convert shash_free_instance() to new style

2020-01-09T03:30:57+00:00

Convert shash_free_instance() and its users to the new way of freeing instances, where a ->free() method is installed to the instance struct itself. This replaces the weakly-typed method crypto_template::free(). This will allow removing support for the old way of freeing instances. Also give shash_free_instance() a more descriptive name to reflect that it's only for instances with a single spawn, not for any instance. Signed-off-by: Eric Biggers Signed-off-by: Herbert Xu