diff options
Diffstat (limited to 'target/linux/generic/backport-5.4/080-wireguard-0012-crypto-chacha-unexport-chacha_generic-routines.patch')
| -rw-r--r-- | target/linux/generic/backport-5.4/080-wireguard-0012-crypto-chacha-unexport-chacha_generic-routines.patch | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.4/080-wireguard-0012-crypto-chacha-unexport-chacha_generic-routines.patch b/target/linux/generic/backport-5.4/080-wireguard-0012-crypto-chacha-unexport-chacha_generic-routines.patch new file mode 100644 index 0000000000..d06f47a100 --- /dev/null +++ b/target/linux/generic/backport-5.4/080-wireguard-0012-crypto-chacha-unexport-chacha_generic-routines.patch @@ -0,0 +1,115 @@ +From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 +From: Ard Biesheuvel <ardb@kernel.org> +Date: Fri, 8 Nov 2019 13:22:18 +0100 +Subject: [PATCH] crypto: chacha - unexport chacha_generic routines + +commit 22cf705360707ced15f9fe5423938f313c7df536 upstream. + +Now that all users of generic ChaCha code have moved to the core library, +there is no longer a need for the generic ChaCha skcpiher driver to +export parts of it implementation for reuse by other drivers. So drop +the exports, and make the symbols static. + +Signed-off-by: Ard Biesheuvel <ardb@kernel.org> +Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> +Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> +--- + crypto/chacha_generic.c | 26 ++++++++------------------ + include/crypto/internal/chacha.h | 10 ---------- + 2 files changed, 8 insertions(+), 28 deletions(-) + +--- a/crypto/chacha_generic.c ++++ b/crypto/chacha_generic.c +@@ -21,7 +21,7 @@ static int chacha_stream_xor(struct skci + + err = skcipher_walk_virt(&walk, req, false); + +- crypto_chacha_init(state, ctx, iv); ++ chacha_init_generic(state, ctx->key, iv); + + while (walk.nbytes > 0) { + unsigned int nbytes = walk.nbytes; +@@ -37,36 +37,27 @@ static int chacha_stream_xor(struct skci + return err; + } + +-void crypto_chacha_init(u32 *state, const struct chacha_ctx *ctx, const u8 *iv) +-{ +- chacha_init_generic(state, ctx->key, iv); +-} +-EXPORT_SYMBOL_GPL(crypto_chacha_init); +- +-int crypto_chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key, +- unsigned int keysize) ++static int crypto_chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key, ++ unsigned int keysize) + { + return chacha_setkey(tfm, key, keysize, 20); + } +-EXPORT_SYMBOL_GPL(crypto_chacha20_setkey); + +-int crypto_chacha12_setkey(struct crypto_skcipher *tfm, const u8 *key, +- unsigned int keysize) ++static int crypto_chacha12_setkey(struct crypto_skcipher *tfm, const u8 *key, ++ unsigned int keysize) + { + return chacha_setkey(tfm, key, keysize, 12); + } +-EXPORT_SYMBOL_GPL(crypto_chacha12_setkey); + +-int crypto_chacha_crypt(struct skcipher_request *req) ++static int crypto_chacha_crypt(struct skcipher_request *req) + { + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm); + + return chacha_stream_xor(req, ctx, req->iv); + } +-EXPORT_SYMBOL_GPL(crypto_chacha_crypt); + +-int crypto_xchacha_crypt(struct skcipher_request *req) ++static int crypto_xchacha_crypt(struct skcipher_request *req) + { + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm); +@@ -75,7 +66,7 @@ int crypto_xchacha_crypt(struct skcipher + u8 real_iv[16]; + + /* Compute the subkey given the original key and first 128 nonce bits */ +- crypto_chacha_init(state, ctx, req->iv); ++ chacha_init_generic(state, ctx->key, req->iv); + hchacha_block_generic(state, subctx.key, ctx->nrounds); + subctx.nrounds = ctx->nrounds; + +@@ -86,7 +77,6 @@ int crypto_xchacha_crypt(struct skcipher + /* Generate the stream and XOR it with the data */ + return chacha_stream_xor(req, &subctx, real_iv); + } +-EXPORT_SYMBOL_GPL(crypto_xchacha_crypt); + + static struct skcipher_alg algs[] = { + { +--- a/include/crypto/internal/chacha.h ++++ b/include/crypto/internal/chacha.h +@@ -12,8 +12,6 @@ struct chacha_ctx { + int nrounds; + }; + +-void crypto_chacha_init(u32 *state, const struct chacha_ctx *ctx, const u8 *iv); +- + static inline int chacha_setkey(struct crypto_skcipher *tfm, const u8 *key, + unsigned int keysize, int nrounds) + { +@@ -42,12 +40,4 @@ static int inline chacha12_setkey(struct + return chacha_setkey(tfm, key, keysize, 12); + } + +-int crypto_chacha20_setkey(struct crypto_skcipher *tfm, const u8 *key, +- unsigned int keysize); +-int crypto_chacha12_setkey(struct crypto_skcipher *tfm, const u8 *key, +- unsigned int keysize); +- +-int crypto_chacha_crypt(struct skcipher_request *req); +-int crypto_xchacha_crypt(struct skcipher_request *req); +- + #endif /* _CRYPTO_CHACHA_H */ |