From d576a9561a1c80ae593539fb0ce0743d66825ac2 Mon Sep 17 00:00:00 2001 From: Andi Shyti Date: Sat, 22 Aug 2026 14:19:12 +0200 Subject: Merge tag 'rust-i2c-for-7.3' into i2c/i2c i2c: rust: mark I2cAdapter methods as inline A single cleanup for the Rust I2C abstractions, targeting 7.3. `I2cAdapter::get`, `inc_ref`, and `dec_ref` are trivial wrappers around `i2c_get_adapter`/`i2c_put_adapter` and were showing up as their own symbols in the build. Mark them `#[inline]` so they get folded into their callers instead. Signed-off-by: Igor Korotin * tag 'rust-i2c-for-7.3': i2c: rust: mark I2cAdapter methods as inline --- security/apparmor/crypto.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 security/apparmor/crypto.c (limited to 'security/apparmor/crypto.c') diff --git a/security/apparmor/crypto.c b/security/apparmor/crypto.c new file mode 100644 index 000000000..d8a7bde94 --- /dev/null +++ b/security/apparmor/crypto.c @@ -0,0 +1,61 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * AppArmor security module + * + * This file contains AppArmor policy loading interface function definitions. + * + * Copyright 2013 Canonical Ltd. + * + * Fns to provide a checksum of policy that has been loaded this can be + * compared to userspace policy compiles to check loaded policy is what + * it should be. + */ + +#include + +#include "include/apparmor.h" +#include "include/crypto.h" + +unsigned int aa_hash_size(void) +{ + return SHA256_DIGEST_SIZE; +} + +char *aa_calc_hash(void *data, size_t len) +{ + char *hash; + + hash = kzalloc(SHA256_DIGEST_SIZE, GFP_KERNEL); + if (!hash) + return ERR_PTR(-ENOMEM); + + sha256(data, len, hash); + return hash; +} + +int aa_calc_profile_hash(struct aa_profile *profile, u32 version, void *start, + size_t len) +{ + struct sha256_ctx sctx; + __le32 le32_version = cpu_to_le32(version); + + if (!aa_g_hash_policy) + return 0; + + profile->hash = kzalloc(SHA256_DIGEST_SIZE, GFP_KERNEL); + if (!profile->hash) + return -ENOMEM; + + sha256_init(&sctx); + sha256_update(&sctx, (u8 *)&le32_version, 4); + sha256_update(&sctx, (u8 *)start, len); + sha256_final(&sctx, profile->hash); + return 0; +} + +int __init init_profile_hash(void) +{ + if (apparmor_initialized) + aa_info_message("AppArmor sha256 policy hashing enabled"); + return 0; +} -- cgit v1.3.1