diff options
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/Makefile | 3 | ||||
| -rw-r--r-- | crypto/af_alg.c | 4 | ||||
| -rw-r--r-- | crypto/bpf_crypto_skcipher.c | 82 |
3 files changed, 87 insertions, 2 deletions
diff --git a/crypto/Makefile b/crypto/Makefile index de9a3312a2c8..edbbaa3ffef5 100644 --- a/crypto/Makefile +++ b/crypto/Makefile @@ -20,6 +20,9 @@ crypto_skcipher-y += lskcipher.o crypto_skcipher-y += skcipher.o obj-$(CONFIG_CRYPTO_SKCIPHER2) += crypto_skcipher.o +ifeq ($(CONFIG_BPF_SYSCALL),y) +obj-$(CONFIG_CRYPTO_SKCIPHER2) += bpf_crypto_skcipher.o +endif obj-$(CONFIG_CRYPTO_SEQIV) += seqiv.o obj-$(CONFIG_CRYPTO_ECHAINIV) += echainiv.o diff --git a/crypto/af_alg.c b/crypto/af_alg.c index 68cc9290cabe..5bc6d0fa7498 100644 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@ -847,7 +847,7 @@ void af_alg_wmem_wakeup(struct sock *sk) wake_up_interruptible_sync_poll(&wq->wait, EPOLLIN | EPOLLRDNORM | EPOLLRDBAND); - sk_wake_async(sk, SOCK_WAKE_WAITD, POLL_IN); + sk_wake_async_rcu(sk, SOCK_WAKE_WAITD, POLL_IN); rcu_read_unlock(); } EXPORT_SYMBOL_GPL(af_alg_wmem_wakeup); @@ -914,7 +914,7 @@ static void af_alg_data_wakeup(struct sock *sk) wake_up_interruptible_sync_poll(&wq->wait, EPOLLOUT | EPOLLRDNORM | EPOLLRDBAND); - sk_wake_async(sk, SOCK_WAKE_SPACE, POLL_OUT); + sk_wake_async_rcu(sk, SOCK_WAKE_SPACE, POLL_OUT); rcu_read_unlock(); } diff --git a/crypto/bpf_crypto_skcipher.c b/crypto/bpf_crypto_skcipher.c new file mode 100644 index 000000000000..b5e657415770 --- /dev/null +++ b/crypto/bpf_crypto_skcipher.c @@ -0,0 +1,82 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright (c) 2024 Meta, Inc */ +#include <linux/types.h> +#include <linux/module.h> +#include <linux/bpf_crypto.h> +#include <crypto/skcipher.h> + +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"); |