From 9f0346dcbea363787186c94ef94dd01aaa215afa Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 5 Sep 2026 11:59:05 -0700 Subject: Merge tag 'driver-core-7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core Pull driver core fixes from Danilo Krummrich: - Fix kernfs listxattr() not returning security xattr names (e.g. SELinux labels) when the kernfs node has no allocated kernfs_iattrs - Fix silent truncation of IRQ vector indices in the Rust PCI abstractions - Don't select OF from DRIVER_PE_KUNIT_TEST; skip the test when OF is disabled instead of silently enabling extra kernel functionality - Russ Weight is retiring from kernel development; update the Firmware Loader sysfs contact to the driver-core mailing list, add a CREDITS entry for Firmware Upload, and update MAINTAINERS accordingly * tag 'driver-core-7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: MAINTAINERS: Remove Russ Weight from Firmware Loader CREDITS: Add CREDITS entry for Firmware Upload firmware_loader: Change contact for sysfs nodes rust: pci: reject IRQ vector indices that do not fit in u32 kernfs: preserve security xattrs without allocating iattrs drivers: base: test: DRIVER_PE_KUNIT_TEST should not select OF --- crypto/bpf_crypto_skcipher.c | 83 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 crypto/bpf_crypto_skcipher.c (limited to 'crypto/bpf_crypto_skcipher.c') diff --git a/crypto/bpf_crypto_skcipher.c b/crypto/bpf_crypto_skcipher.c new file mode 100644 index 000000000..a88798d3e --- /dev/null +++ b/crypto/bpf_crypto_skcipher.c @@ -0,0 +1,83 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright (c) 2024 Meta, Inc */ +#include +#include +#include +#include + +static void *bpf_crypto_lskcipher_alloc_tfm(const char *algo) +{ + return crypto_alloc_lskcipher(algo, 0, 0); +} + +static void bpf_crypto_lskcipher_free_tfm(void *tfm) +{ + crypto_free_lskcipher(tfm); +} + +static int bpf_crypto_lskcipher_has_algo(const char *algo) +{ + return crypto_has_skcipher(algo, CRYPTO_ALG_TYPE_LSKCIPHER, CRYPTO_ALG_TYPE_MASK); +} + +static int bpf_crypto_lskcipher_setkey(void *tfm, const u8 *key, unsigned int keylen) +{ + return crypto_lskcipher_setkey(tfm, key, keylen); +} + +static u32 bpf_crypto_lskcipher_get_flags(void *tfm) +{ + return crypto_lskcipher_get_flags(tfm); +} + +static unsigned int bpf_crypto_lskcipher_ivsize(void *tfm) +{ + return crypto_lskcipher_ivsize(tfm); +} + +static unsigned int bpf_crypto_lskcipher_statesize(void *tfm) +{ + return crypto_lskcipher_statesize(tfm); +} + +static int bpf_crypto_lskcipher_encrypt(void *tfm, const u8 *src, u8 *dst, + unsigned int len, u8 *siv) +{ + return crypto_lskcipher_encrypt(tfm, src, dst, len, siv); +} + +static int bpf_crypto_lskcipher_decrypt(void *tfm, const u8 *src, u8 *dst, + unsigned int len, u8 *siv) +{ + return crypto_lskcipher_decrypt(tfm, src, dst, len, siv); +} + +static const struct bpf_crypto_type bpf_crypto_lskcipher_type = { + .alloc_tfm = bpf_crypto_lskcipher_alloc_tfm, + .free_tfm = bpf_crypto_lskcipher_free_tfm, + .has_algo = bpf_crypto_lskcipher_has_algo, + .setkey = bpf_crypto_lskcipher_setkey, + .encrypt = bpf_crypto_lskcipher_encrypt, + .decrypt = bpf_crypto_lskcipher_decrypt, + .ivsize = bpf_crypto_lskcipher_ivsize, + .statesize = bpf_crypto_lskcipher_statesize, + .get_flags = bpf_crypto_lskcipher_get_flags, + .owner = THIS_MODULE, + .name = "skcipher", +}; + +static int __init bpf_crypto_skcipher_init(void) +{ + return bpf_crypto_register_type(&bpf_crypto_lskcipher_type); +} + +static void __exit bpf_crypto_skcipher_exit(void) +{ + int err = bpf_crypto_unregister_type(&bpf_crypto_lskcipher_type); + WARN_ON_ONCE(err); +} + +module_init(bpf_crypto_skcipher_init); +module_exit(bpf_crypto_skcipher_exit); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Symmetric key cipher support for BPF"); -- cgit v1.3.1