From 9cc63f8bcd560c760d0b12e15bba8f81c86237cf Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Fri, 14 Aug 2026 15:43:51 -0700 Subject: Merge branches 'expcb.2026.07.24a', 'misc.2026.07.30a', 'rcu-tasks.2026.07.30a', 'srcu.2026.08.11a' and 'torture.2026.08.14a' into HEAD Changes: Make expedited grace periods expedite normal RCU callbacks Miscellaneous fixes: * Improve diagnostic output with character task states. * Mark accesses to inform KCSAN of concurrency design. * Move from kmalloc() to kmalloc_obj(). * Documentation updates. * Improve handling of RCU deferred quiescent states. * Clean up unused function arguments and structure fields. * Reduce show_rcu_gp_kthreads() stack space. Tasks RCU updates: * Clean up after SRCU re-implementation of Tasks Trace RCU. * Mark accesses to inform KCSAN of concurrency design. * Add ->lazy_timer status to diagnostic output. * Remove an unnecessary memory barrier. * Fix a data race, courtesy of KCSAN. * Documentation updates. * Convert cond_resched_tasks_rcu_qs() from macro to static inline function. SRCU updates: * Add Rust helpers for SRCU. * Avoid losing queued work at cleanup_srcu_struct() time. Torture-test updates: * Preparation work for immediate RCU priority deboosting. * Test RCU readers from real interrupt handlers (as opposed to softirq). * Simplify code through use of cpumask_next_wrap(). * Improve diagnostic output with character task states. * Add rcutorture.nwriters parameter to allow lightweight stall testing, and rcutorture.stall_only to make doing so easier. * Test an RCU Tasks Trace grace period implying an RCU grace period. * Make RCU Tasks Trace torturing track reader batches. * Fix a data race, courtesy of KCSAN. * Plug a shuffle_tmp_mask memory leak on kthread spawn failure. --- crypto/sha3.c | 166 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 166 insertions(+) create mode 100644 crypto/sha3.c (limited to 'crypto/sha3.c') diff --git a/crypto/sha3.c b/crypto/sha3.c new file mode 100644 index 000000000..8f364979e --- /dev/null +++ b/crypto/sha3.c @@ -0,0 +1,166 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Crypto API support for SHA-3 + * (https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.202.pdf) + */ +#include +#include +#include +#include + +#define SHA3_CTX(desc) ((struct sha3_ctx *)shash_desc_ctx(desc)) + +static int crypto_sha3_224_init(struct shash_desc *desc) +{ + sha3_224_init(SHA3_CTX(desc)); + return 0; +} + +static int crypto_sha3_256_init(struct shash_desc *desc) +{ + sha3_256_init(SHA3_CTX(desc)); + return 0; +} + +static int crypto_sha3_384_init(struct shash_desc *desc) +{ + sha3_384_init(SHA3_CTX(desc)); + return 0; +} + +static int crypto_sha3_512_init(struct shash_desc *desc) +{ + sha3_512_init(SHA3_CTX(desc)); + return 0; +} + +static int crypto_sha3_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + sha3_update(SHA3_CTX(desc), data, len); + return 0; +} + +static int crypto_sha3_final(struct shash_desc *desc, u8 *out) +{ + sha3_final(SHA3_CTX(desc), out); + return 0; +} + +static int crypto_sha3_224_digest(struct shash_desc *desc, + const u8 *data, unsigned int len, u8 *out) +{ + sha3_224(data, len, out); + return 0; +} + +static int crypto_sha3_256_digest(struct shash_desc *desc, + const u8 *data, unsigned int len, u8 *out) +{ + sha3_256(data, len, out); + return 0; +} + +static int crypto_sha3_384_digest(struct shash_desc *desc, + const u8 *data, unsigned int len, u8 *out) +{ + sha3_384(data, len, out); + return 0; +} + +static int crypto_sha3_512_digest(struct shash_desc *desc, + const u8 *data, unsigned int len, u8 *out) +{ + sha3_512(data, len, out); + return 0; +} + +static int crypto_sha3_export_core(struct shash_desc *desc, void *out) +{ + memcpy(out, SHA3_CTX(desc), sizeof(struct sha3_ctx)); + return 0; +} + +static int crypto_sha3_import_core(struct shash_desc *desc, const void *in) +{ + memcpy(SHA3_CTX(desc), in, sizeof(struct sha3_ctx)); + return 0; +} + +static struct shash_alg algs[] = { { + .digestsize = SHA3_224_DIGEST_SIZE, + .init = crypto_sha3_224_init, + .update = crypto_sha3_update, + .final = crypto_sha3_final, + .digest = crypto_sha3_224_digest, + .export_core = crypto_sha3_export_core, + .import_core = crypto_sha3_import_core, + .descsize = sizeof(struct sha3_ctx), + .base.cra_name = "sha3-224", + .base.cra_driver_name = "sha3-224-lib", + .base.cra_blocksize = SHA3_224_BLOCK_SIZE, + .base.cra_module = THIS_MODULE, +}, { + .digestsize = SHA3_256_DIGEST_SIZE, + .init = crypto_sha3_256_init, + .update = crypto_sha3_update, + .final = crypto_sha3_final, + .digest = crypto_sha3_256_digest, + .export_core = crypto_sha3_export_core, + .import_core = crypto_sha3_import_core, + .descsize = sizeof(struct sha3_ctx), + .base.cra_name = "sha3-256", + .base.cra_driver_name = "sha3-256-lib", + .base.cra_blocksize = SHA3_256_BLOCK_SIZE, + .base.cra_module = THIS_MODULE, +}, { + .digestsize = SHA3_384_DIGEST_SIZE, + .init = crypto_sha3_384_init, + .update = crypto_sha3_update, + .final = crypto_sha3_final, + .digest = crypto_sha3_384_digest, + .export_core = crypto_sha3_export_core, + .import_core = crypto_sha3_import_core, + .descsize = sizeof(struct sha3_ctx), + .base.cra_name = "sha3-384", + .base.cra_driver_name = "sha3-384-lib", + .base.cra_blocksize = SHA3_384_BLOCK_SIZE, + .base.cra_module = THIS_MODULE, +}, { + .digestsize = SHA3_512_DIGEST_SIZE, + .init = crypto_sha3_512_init, + .update = crypto_sha3_update, + .final = crypto_sha3_final, + .digest = crypto_sha3_512_digest, + .export_core = crypto_sha3_export_core, + .import_core = crypto_sha3_import_core, + .descsize = sizeof(struct sha3_ctx), + .base.cra_name = "sha3-512", + .base.cra_driver_name = "sha3-512-lib", + .base.cra_blocksize = SHA3_512_BLOCK_SIZE, + .base.cra_module = THIS_MODULE, +} }; + +static int __init crypto_sha3_mod_init(void) +{ + return crypto_register_shashes(algs, ARRAY_SIZE(algs)); +} +module_init(crypto_sha3_mod_init); + +static void __exit crypto_sha3_mod_exit(void) +{ + crypto_unregister_shashes(algs, ARRAY_SIZE(algs)); +} +module_exit(crypto_sha3_mod_exit); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Crypto API support for SHA-3"); + +MODULE_ALIAS_CRYPTO("sha3-224"); +MODULE_ALIAS_CRYPTO("sha3-224-lib"); +MODULE_ALIAS_CRYPTO("sha3-256"); +MODULE_ALIAS_CRYPTO("sha3-256-lib"); +MODULE_ALIAS_CRYPTO("sha3-384"); +MODULE_ALIAS_CRYPTO("sha3-384-lib"); +MODULE_ALIAS_CRYPTO("sha3-512"); +MODULE_ALIAS_CRYPTO("sha3-512-lib"); -- cgit v1.3.1