linux.git/include/crypto/internal/skcipher.h, branch v6.14

crypto: skcipher - document skcipher_walk_done() and rename some vars

2025-01-14T03:38:32+00:00

skcipher_walk_done() has an unusual calling convention, and some of its
local variables have unclear names.  Document it and rename variables to
make it a bit clearer what is going on.  No change in behavior.

Signed-off-by: Eric Biggers 
Signed-off-by: Herbert Xu

crypto: skcipher - remove support for physical address walks

2024-12-14T09:21:43+00:00

Since the physical address support in skcipher_walk is not used anymore,
remove all the code associated with it.  This includes:

- The skcipher_walk_async() and skcipher_walk_complete() functions;

- The SKCIPHER_WALK_PHYS flag and everything conditional on it;

- The buffers, phys, and virt.page fields in struct skcipher_walk;

- struct skcipher_walk_buffer.

As a result, skcipher_walk now just supports virtual addresses.
Physical address support in skcipher_walk is unneeded because drivers
that need physical addresses just use the scatterlists directly.

Signed-off-by: Eric Biggers 
Signed-off-by: Herbert Xu

crypto: skcipher - Remove obsolete skcipher_alg helpers

2023-10-13T10:27:27+00:00

As skcipher spawn users can no longer assume the spawn is of type
struct skcipher_alg, these helpers are no longer used.  Remove them.

Signed-off-by: Herbert Xu

crypto: skcipher - Add crypto_spawn_skcipher_alg_common

2023-10-13T10:27:26+00:00

As skcipher spawns can be of two different types (skcipher vs.
lskcipher), only the common fields can be accessed.  Add a helper
to return the common algorithm object.

Signed-off-by: Herbert Xu

crypto: skcipher - Add lskcipher

2023-09-20T05:15:29+00:00

Add a new API type lskcipher designed for taking straight kernel
pointers instead of SG lists.  Its relationship to skcipher will
be analogous to that between shash and ahash.

Signed-off-by: Herbert Xu

crypto: skcipher - Use crypto_request_complete

2023-02-13T10:34:49+00:00

Use the crypto_request_complete helper instead of calling the
completion function directly.

Signed-off-by: Herbert Xu

crypto: skcipher - Add ctx helpers with DMA alignment

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

This patch adds helpers to access the skcipher context structure and
request context structure with an added alignment for DMA access.

Signed-off-by: Herbert Xu

crypto: skcipher - Allow sync algorithms with large request contexts

2022-11-18T08:59:34+00:00

Some sync algorithms may require a large amount of temporary
space during its operations.  There is no reason why they should
be limited just because some legacy users want to place all
temporary data on the stack.

Such algorithms can now set a flag to indicate that they need
extra request context, which will cause them to be invisible
to users that go through the sync_skcipher interface.

Signed-off-by: Herbert Xu

crypto: x86 - remove glue helper module

2021-01-14T06:10:29+00:00

All dependencies on the x86 glue helper module have been replaced by
local instantiations of the new ECB/CBC preprocessor helper macros, so
the glue helper module can be retired.

Acked-by: Eric Biggers 
Signed-off-by: Ard Biesheuvel 
Signed-off-by: Herbert Xu

crypto: remove cipher routines from public crypto API

2021-01-02T21:41:35+00:00

The cipher routines in the crypto API are mostly intended for templates
implementing skcipher modes generically in software, and shouldn't be
used outside of the crypto subsystem. So move the prototypes and all
related definitions to a new header file under include/crypto/internal.
Also, let's use the new module namespace feature to move the symbol
exports into a new namespace CRYPTO_INTERNAL.

Signed-off-by: Ard Biesheuvel 
Acked-by: Eric Biggers 
Signed-off-by: Herbert Xu