diff options
Diffstat (limited to 'src/plugins/crypto_ia32')
| -rw-r--r-- | src/plugins/crypto_ia32/CMakeLists.txt | 37 | ||||
| -rw-r--r-- | src/plugins/crypto_ia32/FEATURE.yaml | 10 | ||||
| -rw-r--r-- | src/plugins/crypto_ia32/aes_cbc.c | 497 | ||||
| -rw-r--r-- | src/plugins/crypto_ia32/aes_gcm.c | 780 | ||||
| -rw-r--r-- | src/plugins/crypto_ia32/aesni.h | 226 | ||||
| -rw-r--r-- | src/plugins/crypto_ia32/crypto_ia32.h | 55 | ||||
| -rw-r--r-- | src/plugins/crypto_ia32/ghash.h | 253 | ||||
| -rw-r--r-- | src/plugins/crypto_ia32/main.c | 135 |
8 files changed, 0 insertions, 1993 deletions
diff --git a/src/plugins/crypto_ia32/CMakeLists.txt b/src/plugins/crypto_ia32/CMakeLists.txt deleted file mode 100644 index 0a8b560731a..00000000000 --- a/src/plugins/crypto_ia32/CMakeLists.txt +++ /dev/null @@ -1,37 +0,0 @@ -# Copyright (c) 2018 Cisco and/or its affiliates. -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at: -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -if(NOT CMAKE_SYSTEM_PROCESSOR MATCHES "amd64.*|x86_64.*|AMD64.*") - return() -endif() - -add_vpp_plugin(crypto_ia32 SOURCES main.c) - -list(APPEND VARIANTS "sse42\;-march=silvermont") -list(APPEND VARIANTS "avx2\;-march=core-avx2") -if(compiler_flag_march_skylake_avx512) - list(APPEND VARIANTS "avx512\;-march=skylake-avx512") -endif() -if(compiler_flag_march_icelake_client) - list(APPEND VARIANTS "vaesni\;-march=icelake-client") -endif() - -foreach(VARIANT ${VARIANTS}) - list(GET VARIANT 0 v) - list(GET VARIANT 1 f) - set(l crypto_ia32_${v}) - add_library(${l} OBJECT aes_cbc.c aes_gcm.c) - set_target_properties(${l} PROPERTIES POSITION_INDEPENDENT_CODE ON) - target_compile_options(${l} PUBLIC ${f} -Wall -fno-common -maes) - target_sources(crypto_ia32_plugin PRIVATE $<TARGET_OBJECTS:${l}>) -endforeach() diff --git a/src/plugins/crypto_ia32/FEATURE.yaml b/src/plugins/crypto_ia32/FEATURE.yaml deleted file mode 100644 index 206caceb2d4..00000000000 --- a/src/plugins/crypto_ia32/FEATURE.yaml +++ /dev/null @@ -1,10 +0,0 @@ ---- -name: IPSec crypto engine provided by native implementation -maintainer: Damjan Marion <damarion@cisco.com> -features: - - CBC(128, 192, 256) - - GCM(128, 192, 256) - -description: "An implentation of a native crypto-engine" -state: production -properties: [API, CLI, MULTITHREAD] diff --git a/src/plugins/crypto_ia32/aes_cbc.c b/src/plugins/crypto_ia32/aes_cbc.c deleted file mode 100644 index 910f8ca7413..00000000000 --- a/src/plugins/crypto_ia32/aes_cbc.c +++ /dev/null @@ -1,497 +0,0 @@ -/* - *------------------------------------------------------------------ - * Copyright (c) 2019 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - *------------------------------------------------------------------ - */ - -#include <vlib/vlib.h> -#include <vnet/plugin/plugin.h> -#include <vnet/crypto/crypto.h> -#include <x86intrin.h> -#include <crypto_ia32/crypto_ia32.h> -#include <crypto_ia32/aesni.h> - -#if __GNUC__ > 4 && !__clang__ && CLIB_DEBUG == 0 -#pragma GCC optimize ("O3") -#endif - -typedef struct -{ - __m128i encrypt_key[15]; -#if __VAES__ - __m512i decrypt_key[15]; -#else - __m128i decrypt_key[15]; -#endif -} aes_cbc_key_data_t; - -static_always_inline __m128i -aes_block_load (u8 * p) -{ - return _mm_loadu_si128 ((__m128i *) p); -} - -static_always_inline void -aes_block_store (u8 * p, __m128i r) -{ - _mm_storeu_si128 ((__m128i *) p, r); -} - -static_always_inline __m128i __clib_unused -xor3 (__m128i a, __m128i b, __m128i c) -{ -#if __AVX512F__ - return _mm_ternarylogic_epi32 (a, b, c, 0x96); -#endif - return a ^ b ^ c; -} - -#if __VAES__ -static_always_inline __m512i -xor3_x4 (__m512i a, __m512i b, __m512i c) -{ - return _mm512_ternarylogic_epi32 (a, b, c, 0x96); -} - -static_always_inline __m512i -aes_block_load_x4 (u8 * src[], int i) -{ - __m512i r = { }; - r = _mm512_inserti64x2 (r, aes_block_load (src[0] + i), 0); - r = _mm512_inserti64x2 (r, aes_block_load (src[1] + i), 1); - r = _mm512_inserti64x2 (r, aes_block_load (src[2] + i), 2); - r = _mm512_inserti64x2 (r, aes_block_load (src[3] + i), 3); - return r; -} - -static_always_inline void -aes_block_store_x4 (u8 * dst[], int i, __m512i r) -{ - aes_block_store (dst[0] + i, _mm512_extracti64x2_epi64 (r, 0)); - aes_block_store (dst[1] + i, _mm512_extracti64x2_epi64 (r, 1)); - aes_block_store (dst[2] + i, _mm512_extracti64x2_epi64 (r, 2)); - aes_block_store (dst[3] + i, _mm512_extracti64x2_epi64 (r, 3)); -} -#endif - -static_always_inline void __clib_unused -aes_cbc_dec (__m128i * k, u8 * src, u8 * dst, u8 * iv, int count, - aesni_key_size_t rounds) -{ - __m128i r0, r1, r2, r3, c0, c1, c2, c3, f; - int i; - - f = aes_block_load (iv); - - while (count >= 64) - { - _mm_prefetch (src + 128, _MM_HINT_T0); - _mm_prefetch (dst + 128, _MM_HINT_T0); - - c0 = aes_block_load (src); - c1 = aes_block_load (src + 16); - c2 = aes_block_load (src + 32); - c3 = aes_block_load (src + 48); - - r0 = c0 ^ k[0]; - r1 = c1 ^ k[0]; - r2 = c2 ^ k[0]; - r3 = c3 ^ k[0]; - - for (i = 1; i < rounds; i++) - { - r0 = _mm_aesdec_si128 (r0, k[i]); - r1 = _mm_aesdec_si128 (r1, k[i]); - r2 = _mm_aesdec_si128 (r2, k[i]); - r3 = _mm_aesdec_si128 (r3, k[i]); - } - - r0 = _mm_aesdeclast_si128 (r0, k[i]); - r1 = _mm_aesdeclast_si128 (r1, k[i]); - r2 = _mm_aesdeclast_si128 (r2, k[i]); - r3 = _mm_aesdeclast_si128 (r3, k[i]); - - aes_block_store (dst, r0 ^ f); - aes_block_store (dst + 16, r1 ^ c0); - aes_block_store (dst + 32, r2 ^ c1); - aes_block_store (dst + 48, r3 ^ c2); - - f = c3; - - count -= 64; - src += 64; - dst += 64; - } - - while (count > 0) - { - c0 = aes_block_load (src); - r0 = c0 ^ k[0]; - for (i = 1; i < rounds; i++) - r0 = _mm_aesdec_si128 (r0, k[i]); - r0 = _mm_aesdeclast_si128 (r0, k[i]); - aes_block_store (dst, r0 ^ f); - f = c0; - count -= 16; - src += 16; - dst += 16; - } -} - -#ifdef __VAES__ -static_always_inline void -vaes_cbc_dec (__m512i * k, u8 * src, u8 * dst, u8 * iv, int count, - aesni_key_size_t rounds) -{ - __m512i permute = { 6, 7, 8, 9, 10, 11, 12, 13 }; - __m512i r0, r1, r2, r3, c0, c1, c2, c3, f = { }; - __mmask8 m; - int i, n_blocks = count >> 4; - - f = _mm512_mask_loadu_epi64 (f, 0xc0, (__m512i *) (iv - 48)); - - while (n_blocks >= 16) - { - c0 = _mm512_loadu_si512 ((__m512i *) src); - c1 = _mm512_loadu_si512 ((__m512i *) (src + 64)); - c2 = _mm512_loadu_si512 ((__m512i *) (src + 128)); - c3 = _mm512_loadu_si512 ((__m512i *) (src + 192)); - - r0 = c0 ^ k[0]; - r1 = c1 ^ k[0]; - r2 = c2 ^ k[0]; - r3 = c3 ^ k[0]; - - for (i = 1; i < rounds; i++) - { - r0 = _mm512_aesdec_epi128 (r0, k[i]); - r1 = _mm512_aesdec_epi128 (r1, k[i]); - r2 = _mm512_aesdec_epi128 (r2, k[i]); - r3 = _mm512_aesdec_epi128 (r3, k[i]); - } - - r0 = _mm512_aesdeclast_epi128 (r0, k[i]); - r1 = _mm512_aesdeclast_epi128 (r1, k[i]); - r2 = _mm512_aesdeclast_epi128 (r2, k[i]); - r3 = _mm512_aesdeclast_epi128 (r3, k[i]); - - r0 ^= _mm512_permutex2var_epi64 (f, permute, c0); - _mm512_storeu_si512 ((__m512i *) dst, r0); - - r1 ^= _mm512_permutex2var_epi64 (c0, permute, c1); - _mm512_storeu_si512 ((__m512i *) (dst + 64), r1); - - r2 ^= _mm512_permutex2var_epi64 (c1, permute, c2); - _mm512_storeu_si512 ((__m512i *) (dst + 128), r2); - - r3 ^= _mm512_permutex2var_epi64 (c2, permute, c3); - _mm512_storeu_si512 ((__m512i *) (dst + 192), r3); - f = c3; - - n_blocks -= 16; - src += 256; - dst += 256; - } - - while (n_blocks > 0) - { - m = (1 << (n_blocks * 2)) - 1; - c0 = _mm512_mask_loadu_epi64 (c0, m, (__m512i *) src); - f = _mm512_permutex2var_epi64 (f, permute, c0); - r0 = c0 ^ k[0]; - for (i = 1; i < rounds; i++) - r0 = _mm512_aesdec_epi128 (r0, k[i]); - r0 = _mm512_aesdeclast_epi128 (r0, k[i]); - _mm512_mask_storeu_epi64 ((__m512i *) dst, m, r0 ^ f); - f = c0; - n_blocks -= 4; - src += 64; - dst += 64; - } -} -#endif - -#ifdef __VAES__ -#define N 16 -#define u32xN u32x16 -#define u32xN_min_scalar u32x16_min_scalar -#define u32xN_is_all_zero u32x16_is_all_zero -#else -#define N 4 -#define u32xN u32x4 -#define u32xN_min_scalar u32x4_min_scalar -#define u32xN_is_all_zero u32x4_is_all_zero -#endif - -static_always_inline u32 -aesni_ops_enc_aes_cbc (vlib_main_t * vm, vnet_crypto_op_t * ops[], - u32 n_ops, aesni_key_size_t ks) -{ - crypto_ia32_main_t *cm = &crypto_ia32_main; - crypto_ia32_per_thread_data_t *ptd = vec_elt_at_index (cm->per_thread_data, - vm->thread_index); - int rounds = AESNI_KEY_ROUNDS (ks); - u8 dummy[8192]; - u32 i, j, count, n_left = n_ops; - u32xN dummy_mask = { }; - u32xN len = { }; - vnet_crypto_key_index_t key_index[N]; - u8 *src[N] = { }; - u8 *dst[N] = { }; - /* *INDENT-OFF* */ - union - { - __m128i x1[N]; - __m512i x4[N / 4]; - } r = { }, k[15] = { }; - /* *INDENT-ON* */ - - for (i = 0; i < N; i++) - key_index[i] = ~0; - -more: - for (i = 0; i < N; i++) - if (len[i] == 0) - { - if (n_left == 0) - { - /* no more work to enqueue, so we are enqueueing dummy buffer */ - src[i] = dst[i] = dummy; - len[i] = sizeof (dummy); - dummy_mask[i] = 0; - } - else - { - if (ops[0]->flags & VNET_CRYPTO_OP_FLAG_INIT_IV) - { - r.x1[i] = ptd->cbc_iv[i]; - aes_block_store (ops[0]->iv, r.x1[i]); - ptd->cbc_iv[i] = _mm_aesenc_si128 (r.x1[i], r.x1[i]); - } - else - r.x1[i] = aes_block_load (ops[0]->iv); - - src[i] = ops[0]->src; - dst[i] = ops[0]->dst; - len[i] = ops[0]->len; - dummy_mask[i] = ~0; - if (key_index[i] != ops[0]->key_index) - { - aes_cbc_key_data_t *kd; - key_index[i] = ops[0]->key_index; - kd = (aes_cbc_key_data_t *) cm->key_data[key_index[i]]; - for (j = 0; j < rounds + 1; j++) - k[j].x1[i] = kd->encrypt_key[j]; - } - ops[0]->status = VNET_CRYPTO_OP_STATUS_COMPLETED; - n_left--; - ops++; - } - } - - count = u32xN_min_scalar (len); - - ASSERT (count % 16 == 0); - - for (i = 0; i < count; i += 16) - { -#ifdef __VAES__ - r.x4[0] = xor3_x4 (r.x4[0], aes_block_load_x4 (src, i), k[0].x4[0]); - r.x4[1] = xor3_x4 (r.x4[1], aes_block_load_x4 (src, i), k[0].x4[1]); - r.x4[2] = xor3_x4 (r.x4[2], aes_block_load_x4 (src, i), k[0].x4[2]); - r.x4[3] = xor3_x4 (r.x4[3], aes_block_load_x4 (src, i), k[0].x4[3]); - - for (j = 1; j < rounds; j++) - { - r.x4[0] = _mm512_aesenc_epi128 (r.x4[0], k[j].x4[0]); - r.x4[1] = _mm512_aesenc_epi128 (r.x4[1], k[j].x4[1]); - r.x4[2] = _mm512_aesenc_epi128 (r.x4[2], k[j].x4[2]); - r.x4[3] = _mm512_aesenc_epi128 (r.x4[3], k[j].x4[3]); - } - r.x4[0] = _mm512_aesenclast_epi128 (r.x4[0], k[j].x4[0]); - r.x4[1] = _mm512_aesenclast_epi128 (r.x4[1], k[j].x4[1]); - r.x4[2] = _mm512_aesenclast_epi128 (r.x4[2], k[j].x4[2]); - r.x4[3] = _mm512_aesenclast_epi128 (r.x4[3], k[j].x4[3]); - - aes_block_store_x4 (dst, i, r.x4[0]); - aes_block_store_x4 (dst + 4, i, r.x4[1]); - aes_block_store_x4 (dst + 8, i, r.x4[2]); - aes_block_store_x4 (dst + 12, i, r.x4[3]); -#else - r.x1[0] = xor3 (r.x1[0], aes_block_load (src[0] + i), k[0].x1[0]); - r.x1[1] = xor3 (r.x1[1], aes_block_load (src[1] + i), k[0].x1[1]); - r.x1[2] = xor3 (r.x1[2], aes_block_load (src[2] + i), k[0].x1[2]); - r.x1[3] = xor3 (r.x1[3], aes_block_load (src[3] + i), k[0].x1[3]); - - for (j = 1; j < rounds; j++) - { - r.x1[0] = _mm_aesenc_si128 (r.x1[0], k[j].x1[0]); - r.x1[1] = _mm_aesenc_si128 (r.x1[1], k[j].x1[1]); - r.x1[2] = _mm_aesenc_si128 (r.x1[2], k[j].x1[2]); - r.x1[3] = _mm_aesenc_si128 (r.x1[3], k[j].x1[3]); - } - - r.x1[0] = _mm_aesenclast_si128 (r.x1[0], k[j].x1[0]); - r.x1[1] = _mm_aesenclast_si128 (r.x1[1], k[j].x1[1]); - r.x1[2] = _mm_aesenclast_si128 (r.x1[2], k[j].x1[2]); - r.x1[3] = _mm_aesenclast_si128 (r.x1[3], k[j].x1[3]); - - aes_block_store (dst[0] + i, r.x1[0]); - aes_block_store (dst[1] + i, r.x1[1]); - aes_block_store (dst[2] + i, r.x1[2]); - aes_block_store (dst[3] + i, r.x1[3]); -#endif - } - - for (i = 0; i < N; i++) - { - src[i] += count; - dst[i] += count; - len[i] -= count; - } - - if (n_left > 0) - goto more; - - if (!u32xN_is_all_zero (len & dummy_mask)) - goto more; - - return n_ops; -} - -static_always_inline u32 -aesni_ops_dec_aes_cbc (vlib_main_t * vm, vnet_crypto_op_t * ops[], - u32 n_ops, aesni_key_size_t ks) -{ - crypto_ia32_main_t *cm = &crypto_ia32_main; - int rounds = AESNI_KEY_ROUNDS (ks); - vnet_crypto_op_t *op = ops[0]; - aes_cbc_key_data_t *kd = (aes_cbc_key_data_t *) cm->key_data[op->key_index]; - u32 n_left = n_ops; - - ASSERT (n_ops >= 1); - -decrypt: -#ifdef __VAES__ - vaes_cbc_dec (kd->decrypt_key, op->src, op->dst, op->iv, op->len, rounds); -#else - aes_cbc_dec (kd->decrypt_key, op->src, op->dst, op->iv, op->len, rounds); -#endif - op->status = VNET_CRYPTO_OP_STATUS_COMPLETED; - - if (--n_left) - { - op += 1; - kd = (aes_cbc_key_data_t *) cm->key_data[op->key_index]; - goto decrypt; - } - - return n_ops; -} - -static_always_inline void * -aesni_cbc_key_exp (vnet_crypto_key_t * key, aesni_key_size_t ks) -{ - __m128i e[15], d[15]; - aes_cbc_key_data_t *kd; - kd = clib_mem_alloc_aligned (sizeof (*kd), CLIB_CACHE_LINE_BYTES); - aes_key_expand (e, key->data, ks); - aes_key_expand (d, key->data, ks); - aes_key_enc_to_dec (d, ks); - for (int i = 0; i < AESNI_KEY_ROUNDS (ks) + 1; i++) - { -#if __VAES__ - kd->decrypt_key[i] = _mm512_broadcast_i64x2 (d[i]); -#else - kd->decrypt_key[i] = d[i]; -#endif - kd->encrypt_key[i] = e[i]; - } - return kd; -} - -#define foreach_aesni_cbc_handler_type _(128) _(192) _(256) - -#define _(x) \ -static u32 aesni_ops_dec_aes_cbc_##x \ -(vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops) \ -{ return aesni_ops_dec_aes_cbc (vm, ops, n_ops, AESNI_KEY_##x); } \ -static u32 aesni_ops_enc_aes_cbc_##x \ -(vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops) \ -{ return aesni_ops_enc_aes_cbc (vm, ops, n_ops, AESNI_KEY_##x); } \ -static void * aesni_cbc_key_exp_##x (vnet_crypto_key_t *key) \ -{ return aesni_cbc_key_exp (key, AESNI_KEY_##x); } - -foreach_aesni_cbc_handler_type; -#undef _ - -#include <fcntl.h> - -clib_error_t * -#ifdef __VAES__ -crypto_ia32_aesni_cbc_init_vaes (vlib_main_t * vm) -#elif __AVX512F__ -crypto_ia32_aesni_cbc_init_avx512 (vlib_main_t * vm) -#elif __AVX2__ -crypto_ia32_aesni_cbc_init_avx2 (vlib_main_t * vm) -#else -crypto_ia32_aesni_cbc_init_sse42 (vlib_main_t * vm) -#endif -{ - crypto_ia32_main_t *cm = &crypto_ia32_main; - crypto_ia32_per_thread_data_t *ptd; - clib_error_t *err = 0; - int fd; - - if ((fd = open ("/dev/urandom", O_RDONLY)) < 0) - return clib_error_return_unix (0, "failed to open '/dev/urandom'"); - - /* *INDENT-OFF* */ - vec_foreach (ptd, cm->per_thread_data) - { - for (int i = 0; i < 4; i++) - { - if (read(fd, ptd->cbc_iv, sizeof (ptd->cbc_iv)) != - sizeof (ptd->cbc_iv)) - { - err = clib_error_return_unix (0, "'/dev/urandom' read failure"); - goto error; - } - } - } - /* *INDENT-ON* */ - -#define _(x) \ - vnet_crypto_register_ops_handler (vm, cm->crypto_engine_index, \ - VNET_CRYPTO_OP_AES_##x##_CBC_ENC, \ - aesni_ops_enc_aes_cbc_##x); \ - vnet_crypto_register_ops_handler (vm, cm->crypto_engine_index, \ - VNET_CRYPTO_OP_AES_##x##_CBC_DEC, \ - aesni_ops_dec_aes_cbc_##x); \ - cm->key_fn[VNET_CRYPTO_ALG_AES_##x##_CBC] = aesni_cbc_key_exp_##x; - foreach_aesni_cbc_handler_type; -#undef _ - -error: - close (fd); - return err; -} - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ diff --git a/src/plugins/crypto_ia32/aes_gcm.c b/src/plugins/crypto_ia32/aes_gcm.c deleted file mode 100644 index e45dda79faf..00000000000 --- a/src/plugins/crypto_ia32/aes_gcm.c +++ /dev/null @@ -1,780 +0,0 @@ -/* - *------------------------------------------------------------------ - * Copyright (c) 2019 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - *------------------------------------------------------------------ - */ - -#include <vlib/vlib.h> -#include <vnet/plugin/plugin.h> -#include <vnet/crypto/crypto.h> -#include <x86intrin.h> -#include <crypto_ia32/crypto_ia32.h> -#include <crypto_ia32/aesni.h> -#include <crypto_ia32/ghash.h> - -#if __GNUC__ > 4 && !__clang__ && CLIB_DEBUG == 0 -#pragma GCC optimize ("O3") -#endif - -typedef struct -{ - /* pre-calculated hash key values */ - const __m128i Hi[8]; - /* extracted AES key */ - const __m128i Ke[15]; -} aes_gcm_key_data_t; - -static const __m128i last_byte_one = { 0, 1ULL << 56 }; -static const __m128i zero = { 0, 0 }; - -static const u8x16 bswap_mask = { - 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 -}; - -static const u8x16 byte_mask_scale = { - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 -}; - -static_always_inline __m128i -aesni_gcm_bswap (__m128i x) -{ - return _mm_shuffle_epi8 (x, (__m128i) bswap_mask); -} - -static_always_inline __m128i -aesni_gcm_byte_mask (__m128i x, u8 n_bytes) -{ - u8x16 mask = u8x16_is_greater (u8x16_splat (n_bytes), byte_mask_scale); - - return _mm_blendv_epi8 (zero, x, (__m128i) mask); -} - -static_always_inline __m128i -aesni_gcm_load_partial (__m128i * p, int n_bytes) -{ - ASSERT (n_bytes <= 16); -#ifdef __AVX512F__ - return _mm_mask_loadu_epi8 (zero, (1 << n_bytes) - 1, p); -#else - return aesni_gcm_byte_mask (CLIB_MEM_OVERFLOW_LOAD (_mm_loadu_si128, p), - n_bytes); -#endif -} - -static_always_inline void -aesni_gcm_store_partial (void *p, __m128i r, int n_bytes) -{ -#ifdef __AVX512F__ - _mm_mask_storeu_epi8 (p, (1 << n_bytes) - 1, r); -#else - u8x16 mask = u8x16_is_greater (u8x16_splat (n_bytes), byte_mask_scale); - _mm_maskmoveu_si128 (r, (__m128i) mask, p); -#endif -} - -static_always_inline void -aesni_gcm_load (__m128i * d, __m128i * inv, int n, int n_bytes) -{ - for (int i = 0; i < n - 1; i++) - d[i] = _mm_loadu_si128 (inv + i); - d[n - 1] = n_bytes ? aesni_gcm_load_partial (inv + n - 1, n_bytes) : - _mm_loadu_si128 (inv + n - 1); -} - -static_always_inline void -aesni_gcm_store (__m128i * d, __m128i * outv, int n, int n_bytes) -{ - for (int i = 0; i < n - 1; i++) - _mm_storeu_si128 (outv + i, d[i]); - if (n_bytes & 0xf) - aesni_gcm_store_partial (outv + n - 1, d[n - 1], n_bytes); - else - _mm_storeu_si128 (outv + n - 1, d[n - 1]); -} - -static_always_inline void -aesni_gcm_enc_first_round (__m128i * r, __m128i * Y, u32 * ctr, __m128i k, - int n_blocks) -{ - u32 i; - - if (PREDICT_TRUE ((u8) ctr[0] < (256 - n_blocks))) - { - for (i = 0; i < n_blocks; i++) - { - Y[0] = _mm_add_epi32 (Y[0], last_byte_one); - r[i] = k ^ Y[0]; - } - ctr[0] += n_blocks; - } - else - { - for (i = 0; i < n_blocks; i++) - { - Y[0] = _mm_insert_epi32 (Y[0], clib_host_to_net_u32 (++ctr[0]), 3); - r[i] = k ^ Y[0]; - } - } -} - -static_always_inline void -aesni_gcm_enc_round (__m128i * r, __m128i k, int n_blocks) -{ - for (int i = 0; i < n_blocks; i++) - r[i] = _mm_aesenc_si128 (r[i], k); -} - -static_always_inline void -aesni_gcm_enc_last_round (__m128i * r, __m128i * d, const __m128i * k, - int rounds, int n_blocks) -{ - - /* additional ronuds for AES-192 and AES-256 */ - for (int i = 10; i < rounds; i++) - aesni_gcm_enc_round (r, k[i], n_blocks); - - for (int i = 0; i < n_blocks; i++) - d[i] ^= _mm_aesenclast_si128 (r[i], k[rounds]); -} - -static_always_inline __m128i -aesni_gcm_ghash_blocks (__m128i T, aes_gcm_key_data_t * kd, - const __m128i * in, int n_blocks) -{ - ghash_data_t _gd, *gd = &_gd; - const __m128i *Hi = kd->Hi + n_blocks - 1; - ghash_mul_first (gd, aesni_gcm_bswap (_mm_loadu_si128 (in)) ^ T, Hi[0]); - for (int i = 1; i < n_blocks; i++) - ghash_mul_next (gd, aesni_gcm_bswap (_mm_loadu_si128 (in + i)), Hi[-i]); - ghash_reduce (gd); - ghash_reduce2 (gd); - return ghash_final (gd); -} - -static_always_inline __m128i -aesni_gcm_ghash (__m128i T, aes_gcm_key_data_t * kd, const __m128i * in, - u32 n_left) -{ - - while (n_left >= 128) - { - T = aesni_gcm_ghash_blocks (T, kd, in, 8); - n_left -= 128; - in += 8; - } - - if (n_left >= 64) - { - T = aesni_gcm_ghash_blocks (T, kd, in, 4); - n_left -= 64; - in += 4; - } - - if (n_left >= 32) - { - T = aesni_gcm_ghash_blocks (T, kd, in, 2); - n_left -= 32; - in += 2; - } - - if (n_left >= 16) - { - T = aesni_gcm_ghash_blocks (T, kd, in, 1); - n_left -= 16; - in += 1; - } - - if (n_left) - { - __m128i r = aesni_gcm_load_partial ((__m128i *) in, n_left); - T = ghash_mul (aesni_gcm_bswap (r) ^ T, kd->Hi[0]); - } - return T; -} - -static_always_inline __m128i -aesni_gcm_calc (__m128i T, aes_gcm_key_data_t * kd, __m128i * d, - __m128i * Y, u32 * ctr, __m128i * inv, __m128i * outv, - int rounds, int n, int last_block_bytes, int with_ghash, - int is_encrypt) -{ - __m128i r[n]; - ghash_data_t _gd = { }, *gd = &_gd; - const __m128i *k = kd->Ke; - int hidx = is_encrypt ? 4 : n, didx = 0; - - _mm_prefetch (inv + 4, _MM_HINT_T0); - - /* AES rounds 0 and 1 */ - aesni_gcm_enc_first_round (r, Y, ctr, k[0], n); - aesni_gcm_enc_round (r, k[1], n); - - /* load data - decrypt round */ - if (is_encrypt == 0) - aesni_gcm_load (d, inv, n, last_block_bytes); - - /* GHASH multiply block 1 */ - if (with_ghash) - ghash_mul_first (gd, aesni_gcm_bswap (d[didx++]) ^ T, kd->Hi[--hidx]); - - /* AES rounds 2 and 3 */ - aesni_gcm_enc_round (r, k[2], n); - aesni_gcm_enc_round (r, k[3], n); - - /* GHASH multiply block 2 */ - if (with_ghash && hidx) - ghash_mul_next (gd, aesni_gcm_bswap (d[didx++]), kd->Hi[--hidx]); - - /* AES rounds 4 and 5 */ - aesni_gcm_enc_round (r, k[4], n); - aesni_gcm_enc_round (r, k[5], n); - - /* GHASH multiply block 3 */ - if (with_ghash && hidx) - ghash_mul_next (gd, aesni_gcm_bswap (d[didx++]), kd->Hi[--hidx]); - - /* AES rounds 6 and 7 */ - aesni_gcm_enc_round (r, k[6], n); - aesni_gcm_enc_round (r, k[7], n); - - /* GHASH multiply block 4 */ - if (with_ghash && hidx) - ghash_mul_next (gd, aesni_gcm_bswap (d[didx++]), kd->Hi[--hidx]); - - /* AES rounds 8 and 9 */ - aesni_gcm_enc_round (r, k[8], n); - aesni_gcm_enc_round (r, k[9], n); - - /* GHASH reduce 1st step */ - if (with_ghash) - ghash_reduce (gd); - - /* load data - encrypt round */ - if (is_encrypt) - aesni_gcm_load (d, inv, n, last_block_bytes); - - /* GHASH reduce 2nd step */ - if (with_ghash) - ghash_reduce2 (gd); - - /* AES last round(s) */ - aesni_gcm_enc_last_round (r, d, k, rounds, n); - - /* store data */ - aesni_gcm_store (d, outv, n, last_block_bytes); - - /* GHASH final step */ - if (with_ghash) - T = ghash_final (gd); - - return T; -} - -static_always_inline __m128i -aesni_gcm_calc_double (__m128i T, aes_gcm_key_data_t * kd, __m128i * d, - __m128i * Y, u32 * ctr, __m128i * inv, __m128i * outv, - int rounds, int is_encrypt) -{ - __m128i r[4]; - ghash_data_t _gd, *gd = &_gd; - const __m128i *k = kd->Ke; - - /* AES rounds 0 and 1 */ - aesni_gcm_enc_first_round (r, Y, ctr, k[0], 4); - aesni_gcm_enc_round (r, k[1], 4); - - /* load 4 blocks of data - decrypt round */ - if (is_encrypt == 0) - aesni_gcm_load (d, inv, 4, 0); - - /* GHASH multiply block 0 */ - ghash_mul_first (gd, aesni_gcm_bswap (d[0]) ^ T, kd->Hi[7]); - - /* AES rounds 2 and 3 */ - aesni_gcm_enc_round (r, k[2], 4); - aesni_gcm_enc_round (r, k[3], 4); - - /* GHASH multiply block 1 */ - ghash_mul_next (gd, aesni_gcm_bswap (d[1]), kd->Hi[6]); - - /* AES rounds 4 and 5 */ - aesni_gcm_enc_round (r, k[4], 4); - aesni_gcm_enc_round (r, k[5], 4); - - /* GHASH multiply block 2 */ - ghash_mul_next (gd, aesni_gcm_bswap (d[2]), kd->Hi[5]); - - /* AES rounds 6 and 7 */ - aesni_gcm_enc_round (r, k[6], 4); - aesni_gcm_enc_round (r, k[7], 4); - - /* GHASH multiply block 3 */ - ghash_mul_next (gd, aesni_gcm_bswap (d[3]), kd->Hi[4]); - - /* AES rounds 8 and 9 */ - aesni_gcm_enc_round (r, k[8], 4); - aesni_gcm_enc_round (r, k[9], 4); - - /* load 4 blocks of data - encrypt round */ - if (is_encrypt) - aesni_gcm_load (d, inv, 4, 0); - - /* AES last round(s) */ - aesni_gcm_enc_last_round (r, d, k, rounds, 4); - - /* store 4 blocks of data */ - aesni_gcm_store (d, outv, 4, 0); - - /* load next 4 blocks of data data - decrypt round */ - if (is_encrypt == 0) - aesni_gcm_load (d, inv + 4, 4, 0); - - /* GHASH multiply block 4 */ - ghash_mul_next (gd, aesni_gcm_bswap (d[0]), kd->Hi[3]); - - /* AES rounds 0, 1 and 2 */ - aesni_gcm_enc_first_round (r, Y, ctr, k[0], 4); - aesni_gcm_enc_round (r, k[1], 4); - aesni_gcm_enc_round (r, k[2], 4); - - /* GHASH multiply block 5 */ - ghash_mul_next (gd, aesni_gcm_bswap (d[1]), kd->Hi[2]); - - /* AES rounds 3 and 4 */ - aesni_gcm_enc_round (r, k[3], 4); - aesni_gcm_enc_round (r, k[4], 4); - - /* GHASH multiply block 6 */ - ghash_mul_next (gd, aesni_gcm_bswap (d[2]), kd->Hi[1]); - - /* AES rounds 5 and 6 */ - aesni_gcm_enc_round (r, k[5], 4); - aesni_gcm_enc_round (r, k[6], 4); - - /* GHASH multiply block 7 */ - ghash_mul_next (gd, aesni_gcm_bswap (d[3]), kd->Hi[0]); - - /* AES rounds 7 and 8 */ - aesni_gcm_enc_round (r, k[7], 4); - aesni_gcm_enc_round (r, k[8], 4); - - /* GHASH reduce 1st step */ - ghash_reduce (gd); - - /* AES round 9 */ - aesni_gcm_enc_round (r, k[9], 4); - - /* load data - encrypt round */ - if (is_encrypt) - aesni_gcm_load (d, inv + 4, 4, 0); - - /* GHASH reduce 2nd step */ - ghash_reduce2 (gd); - - /* AES last round(s) */ - aesni_gcm_enc_last_round (r, d, k, rounds, 4); - - /* store data */ - aesni_gcm_store (d, outv + 4, 4, 0); - - /* GHASH final step */ - return ghash_final (gd); -} - -static_always_inline __m128i -aesni_gcm_ghash_last (__m128i T, aes_gcm_key_data_t * kd, __m128i * d, - int n_blocks, int n_bytes) -{ - ghash_data_t _gd, *gd = &_gd; - - if (n_bytes) - d[n_blocks - 1] = aesni_gcm_byte_mask (d[n_blocks - 1], n_bytes); - - ghash_mul_first (gd, aesni_gcm_bswap (d[0]) ^ T, kd->Hi[n_blocks - 1]); - if (n_blocks > 1) - ghash_mul_next (gd, aesni_gcm_bswap (d[1]), kd->Hi[n_blocks - 2]); - if (n_blocks > 2) - ghash_mul_next (gd, aesni_gcm_bswap (d[2]), kd->Hi[n_blocks - 3]); - if (n_blocks > 3) - ghash_mul_next (gd, aesni_gcm_bswap (d[3]), kd->Hi[n_blocks - 4]); - ghash_reduce (gd); - ghash_reduce2 (gd); - return ghash_final (gd); -} - - -static_always_inline __m128i -aesni_gcm_enc (__m128i T, aes_gcm_key_data_t * kd, __m128i Y, const u8 * in, - const u8 * out, u32 n_left, int rounds) -{ - __m128i *inv = (__m128i *) in, *outv = (__m128i *) out; - __m128i d[4]; - u32 ctr = 1; - - if (n_left == 0) - return T; - - if (n_left < 64) - { - if (n_left > 48) - { - n_left &= 0x0f; - aesni_gcm_calc (T, kd, d, &Y, &ctr, inv, outv, rounds, 4, n_left, - /* with_ghash */ 0, /* is_encrypt */ 1); - return aesni_gcm_ghash_last (T, kd, d, 4, n_left); - } - else if (n_left > 32) - { - n_left &= 0x0f; - aesni_gcm_calc (T, kd, d, &Y, &ctr, inv, outv, rounds, 3, n_left, - /* with_ghash */ 0, /* is_encrypt */ 1); - return aesni_gcm_ghash_last (T, kd, d, 3, n_left); - } - else if (n_left > 16) - { - n_left &= 0x0f; - aesni_gcm_calc (T, kd, d, &Y, &ctr, inv, outv, rounds, 2, n_left, - /* with_ghash */ 0, /* is_encrypt */ 1); - return aesni_gcm_ghash_last (T, kd, d, 2, n_left); - } - else - { - n_left &= 0x0f; - aesni_gcm_calc (T, kd, d, &Y, &ctr, inv, outv, rounds, 1, n_left, - /* with_ghash */ 0, /* is_encrypt */ 1); - return aesni_gcm_ghash_last (T, kd, d, 1, n_left); - } - } - - aesni_gcm_calc (T, kd, d, &Y, &ctr, inv, outv, rounds, 4, 0, - /* with_ghash */ 0, /* is_encrypt */ 1); - - /* next */ - n_left -= 64; - outv += 4; - inv += 4; - - while (n_left >= 128) - { - T = aesni_gcm_calc_double (T, kd, d, &Y, &ctr, inv, outv, rounds, - /* is_encrypt */ 1); - - /* next */ - n_left -= 128; - outv += 8; - inv += 8; - } - - if (n_left >= 64) - { - T = aesni_gcm_calc (T, kd, d, &Y, &ctr, inv, outv, rounds, 4, 0, - /* with_ghash */ 1, /* is_encrypt */ 1); - - /* next */ - n_left -= 64; - outv += 4; - inv += 4; - } - - if (n_left == 0) - return aesni_gcm_ghash_last (T, kd, d, 4, 0); - - if (n_left > 48) - { - n_left &= 0x0f; - T = aesni_gcm_calc (T, kd, d, &Y, &ctr, inv, outv, rounds, 4, n_left, - /* with_ghash */ 1, /* is_encrypt */ 1); - return aesni_gcm_ghash_last (T, kd, d, 4, n_left); - } - - if (n_left > 32) - { - n_left &= 0x0f; - T = aesni_gcm_calc (T, kd, d, &Y, &ctr, inv, outv, rounds, 3, n_left, - /* with_ghash */ 1, /* is_encrypt */ 1); - return aesni_gcm_ghash_last (T, kd, d, 3, n_left); - } - - if (n_left > 16) - { - n_left &= 0x0f; - T = aesni_gcm_calc (T, kd, d, &Y, &ctr, inv, outv, rounds, 2, n_left, - /* with_ghash */ 1, /* is_encrypt */ 1); - return aesni_gcm_ghash_last (T, kd, d, 2, n_left); - } - - n_left &= 0x0f; - T = aesni_gcm_calc (T, kd, d, &Y, &ctr, inv, outv, rounds, 1, n_left, - /* with_ghash */ 1, /* is_encrypt */ 1); - return aesni_gcm_ghash_last (T, kd, d, 1, n_left); -} - -static_always_inline __m128i -aesni_gcm_dec (__m128i T, aes_gcm_key_data_t * kd, __m128i Y, const u8 * in, - const u8 * out, u32 n_left, int rounds) -{ - __m128i *inv = (__m128i *) in, *outv = (__m128i *) out; - __m128i d[8]; - u32 ctr = 1; - - while (n_left >= 128) - { - T = aesni_gcm_calc_double (T, kd, d, &Y, &ctr, inv, outv, rounds, - /* is_encrypt */ 0); - - /* next */ - n_left -= 128; - outv += 8; - inv += 8; - } - - if (n_left >= 64) - { - T = aesni_gcm_calc (T, kd, d, &Y, &ctr, inv, outv, rounds, 4, 0, 1, 0); - - /* next */ - n_left -= 64; - outv += 4; - inv += 4; - } - - if (n_left == 0) - return T; - - if (n_left > 48) - return aesni_gcm_calc (T, kd, d, &Y, &ctr, inv, outv, rounds, 4, - n_left - 48, - /* with_ghash */ 1, /* is_encrypt */ 0); - - if (n_left > 32) - return aesni_gcm_calc (T, kd, d, &Y, &ctr, inv, outv, rounds, 3, - n_left - 32, - /* with_ghash */ 1, /* is_encrypt */ 0); - - if (n_left > 16) - return aesni_gcm_calc (T, kd, d, &Y, &ctr, inv, outv, rounds, 2, - n_left - 16, - /* with_ghash */ 1, /* is_encrypt */ 0); - - return aesni_gcm_calc (T, kd, d, &Y, &ctr, inv, outv, rounds, 1, n_left, - /* with_ghash */ 1, /* is_encrypt */ 0); -} - -static_always_inline int -aes_gcm (const u8 * in, u8 * out, const u8 * addt, const u8 * iv, u8 * tag, - u32 data_bytes, u32 aad_bytes, u8 tag_len, aes_gcm_key_data_t * kd, - int aes_rounds, int is_encrypt) -{ - int i; - __m128i r, Y0, T = { }; - ghash_data_t _gd, *gd = &_gd; - - _mm_prefetch (iv, _MM_HINT_T0); - _mm_prefetch (in, _MM_HINT_T0); - _mm_prefetch (in + CLIB_CACHE_LINE_BYTES, _MM_HINT_T0); - - /* calculate ghash for AAD - optimized for ipsec common cases */ - if (aad_bytes == 8) - T = aesni_gcm_ghash (T, kd, (__m128i *) addt, 8); - else if (aad_bytes == 12) - T = aesni_gcm_ghash (T, kd, (__m128i *) addt, 12); - else - T = aesni_gcm_ghash (T, kd, (__m128i *) addt, aad_bytes); - - /* initalize counter */ - Y0 = CLIB_MEM_OVERFLOW_LOAD (_mm_loadu_si128, (__m128i *) iv); - Y0 = _mm_insert_epi32 (Y0, clib_host_to_net_u32 (1), 3); - - /* ghash and encrypt/edcrypt */ - if (is_encrypt) - T = aesni_gcm_enc (T, kd, Y0, in, out, data_bytes, aes_rounds); - else - T = aesni_gcm_dec (T, kd, Y0, in, out, data_bytes, aes_rounds); - - _mm_prefetch (tag, _MM_HINT_T0); - - /* Finalize ghash */ - r[0] = data_bytes; - r[1] = aad_bytes; - - /* bytes to bits */ - r <<= 3; - - /* interleaved computation of final ghash and E(Y0, k) */ - ghash_mul_first (gd, r ^ T, kd->Hi[0]); - r = kd->Ke[0] ^ Y0; - for (i = 1; i < 5; i += 1) - r = _mm_aesenc_si128 (r, kd->Ke[i]); - ghash_reduce (gd); - ghash_reduce2 (gd); - for (; i < 9; i += 1) - r = _mm_aesenc_si128 (r, kd->Ke[i]); - T = ghash_final (gd); - for (; i < aes_rounds; i += 1) - r = _mm_aesenc_si128 (r, kd->Ke[i]); - r = _mm_aesenclast_si128 (r, kd->Ke[aes_rounds]); - T = aesni_gcm_bswap (T) ^ r; - - /* tag_len 16 -> 0 */ - tag_len &= 0xf; - - if (is_encrypt) - { - /* store tag */ - if (tag_len) - aesni_gcm_store_partial ((__m128i *) tag, T, (1 << tag_len) - 1); - else - _mm_storeu_si128 ((__m128i *) tag, T); - } - else - { - /* check tag */ - u16 tag_mask = tag_len ? (1 << tag_len) - 1 : 0xffff; - r = _mm_loadu_si128 ((__m128i *) tag); - if (_mm_movemask_epi8 (r == T) != tag_mask) - return 0; - } - return 1; -} - -static_always_inline u32 -aesni_ops_enc_aes_gcm (vlib_main_t * vm, vnet_crypto_op_t * ops[], - u32 n_ops, aesni_key_size_t ks) -{ - crypto_ia32_main_t *cm = &crypto_ia32_main; - vnet_crypto_op_t *op = ops[0]; - aes_gcm_key_data_t *kd; - u32 n_left = n_ops; - - -next: - kd = (aes_gcm_key_data_t *) cm->key_data[op->key_index]; - aes_gcm (op->src, op->dst, op->aad, op->iv, op->tag, op->len, op->aad_len, - op->tag_len, kd, AESNI_KEY_ROUNDS (ks), /* is_encrypt */ 1); - op->status = VNET_CRYPTO_OP_STATUS_COMPLETED; - - if (--n_left) - { - op += 1; - goto next; - } - - return n_ops; -} - -static_always_inline u32 -aesni_ops_dec_aes_gcm (vlib_main_t * vm, vnet_crypto_op_t * ops[], - u32 n_ops, aesni_key_size_t ks) -{ - crypto_ia32_main_t *cm = &crypto_ia32_main; - vnet_crypto_op_t *op = ops[0]; - aes_gcm_key_data_t *kd; - u32 n_left = n_ops; - int rv; - -next: - kd = (aes_gcm_key_data_t *) cm->key_data[op->key_index]; - rv = aes_gcm (op->src, op->dst, op->aad, op->iv, op->tag, op->len, - op->aad_len, op->tag_len, kd, AESNI_KEY_ROUNDS (ks), - /* is_encrypt */ 0); - - if (rv) - { - op->status = VNET_CRYPTO_OP_STATUS_COMPLETED; - } - else - { - op->status = VNET_CRYPTO_OP_STATUS_FAIL_BAD_HMAC; - n_ops--; - } - - if (--n_left) - { - op += 1; - goto next; - } - - return n_ops; -} - -static_always_inline void * -aesni_gcm_key_exp (vnet_crypto_key_t * key, aesni_key_size_t ks) -{ - aes_gcm_key_data_t *kd; - __m128i H; - int i; - - kd = clib_mem_alloc_aligned (sizeof (*kd), CLIB_CACHE_LINE_BYTES); - - /* expand AES key */ - aes_key_expand ((__m128i *) kd->Ke, key->data, ks); - - /* pre-calculate H */ - H = kd->Ke[0]; - for (i = 1; i < AESNI_KEY_ROUNDS (ks); i += 1) - H = _mm_aesenc_si128 (H, kd->Ke[i]); - H = _mm_aesenclast_si128 (H, kd->Ke[i]); - H = aesni_gcm_bswap (H); - ghash_precompute (H, (__m128i *) kd->Hi, 8); - return kd; -} - -#define foreach_aesni_gcm_handler_type _(128) _(192) _(256) - -#define _(x) \ -static u32 aesni_ops_dec_aes_gcm_##x \ -(vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops) \ -{ return aesni_ops_dec_aes_gcm (vm, ops, n_ops, AESNI_KEY_##x); } \ -static u32 aesni_ops_enc_aes_gcm_##x \ -(vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops) \ -{ return aesni_ops_enc_aes_gcm (vm, ops, n_ops, AESNI_KEY_##x); } \ -static void * aesni_gcm_key_exp_##x (vnet_crypto_key_t *key) \ -{ return aesni_gcm_key_exp (key, AESNI_KEY_##x); } - -foreach_aesni_gcm_handler_type; -#undef _ - -clib_error_t * -#ifdef __VAES__ -crypto_ia32_aesni_gcm_init_vaes (vlib_main_t * vm) -#elif __AVX512F__ -crypto_ia32_aesni_gcm_init_avx512 (vlib_main_t * vm) -#elif __AVX2__ -crypto_ia32_aesni_gcm_init_avx2 (vlib_main_t * vm) -#else -crypto_ia32_aesni_gcm_init_sse42 (vlib_main_t * vm) -#endif -{ - crypto_ia32_main_t *cm = &crypto_ia32_main; - -#define _(x) \ - vnet_crypto_register_ops_handler (vm, cm->crypto_engine_index, \ - VNET_CRYPTO_OP_AES_##x##_GCM_ENC, \ - aesni_ops_enc_aes_gcm_##x); \ - vnet_crypto_register_ops_handler (vm, cm->crypto_engine_index, \ - VNET_CRYPTO_OP_AES_##x##_GCM_DEC, \ - aesni_ops_dec_aes_gcm_##x); \ - cm->key_fn[VNET_CRYPTO_ALG_AES_##x##_GCM] = aesni_gcm_key_exp_##x; - foreach_aesni_gcm_handler_type; -#undef _ - return 0; -} - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ diff --git a/src/plugins/crypto_ia32/aesni.h b/src/plugins/crypto_ia32/aesni.h deleted file mode 100644 index ece61c13cf3..00000000000 --- a/src/plugins/crypto_ia32/aesni.h +++ /dev/null @@ -1,226 +0,0 @@ -/* - *------------------------------------------------------------------ - * Copyright (c) 2019 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - *------------------------------------------------------------------ - */ - -#ifndef __aesni_h__ -#define __aesni_h__ - -typedef enum -{ - AESNI_KEY_128 = 0, - AESNI_KEY_192 = 1, - AESNI_KEY_256 = 2, -} aesni_key_size_t; - -#define AESNI_KEY_ROUNDS(x) (10 + x *2) -#define AESNI_KEY_BYTES(x) (16 + x * 8) - - -/* AES-NI based AES key expansion based on code samples from - Intel(r) Advanced Encryption Standard (AES) New Instructions White Paper - (323641-001) */ - -static_always_inline __m128i -aes128_key_assist (__m128i r1, __m128i r2) -{ - r1 ^= _mm_slli_si128 (r1, 4); - r1 ^= _mm_slli_si128 (r1, 4); - r1 ^= _mm_slli_si128 (r1, 4); - return r1 ^ _mm_shuffle_epi32 (r2, 0xff); -} - -static_always_inline void -aes128_key_expand (__m128i * k, u8 * key) -{ - k[0] = _mm_loadu_si128 ((const __m128i *) key); - k[1] = aes128_key_assist (k[0], _mm_aeskeygenassist_si128 (k[0], 0x01)); - k[2] = aes128_key_assist (k[1], _mm_aeskeygenassist_si128 (k[1], 0x02)); - k[3] = aes128_key_assist (k[2], _mm_aeskeygenassist_si128 (k[2], 0x04)); - k[4] = aes128_key_assist (k[3], _mm_aeskeygenassist_si128 (k[3], 0x08)); - k[5] = aes128_key_assist (k[4], _mm_aeskeygenassist_si128 (k[4], 0x10)); - k[6] = aes128_key_assist (k[5], _mm_aeskeygenassist_si128 (k[5], 0x20)); - k[7] = aes128_key_assist (k[6], _mm_aeskeygenassist_si128 (k[6], 0x40)); - k[8] = aes128_key_assist (k[7], _mm_aeskeygenassist_si128 (k[7], 0x80)); - k[9] = aes128_key_assist (k[8], _mm_aeskeygenassist_si128 (k[8], 0x1b)); - k[10] = aes128_key_assist (k[9], _mm_aeskeygenassist_si128 (k[9], 0x36)); -} - -static_always_inline void -aes192_key_assist (__m128i * r1, __m128i * r2, __m128i * r3) -{ - __m128i r; - *r1 ^= r = _mm_slli_si128 (*r1, 0x4); - *r1 ^= r = _mm_slli_si128 (r, 0x4); - *r1 ^= _mm_slli_si128 (r, 0x4); - *r1 ^= _mm_shuffle_epi32 (*r2, 0x55); - *r3 ^= _mm_slli_si128 (*r3, 0x4); - *r3 ^= *r2 = _mm_shuffle_epi32 (*r1, 0xff); -} - -static_always_inline void -aes192_key_expand (__m128i * k, u8 * key) -{ - __m128i r1, r2, r3; - - k[0] = r1 = _mm_loadu_si128 ((__m128i *) key); - /* load the 24-bytes key as 2 * 16-bytes (and ignore last 8-bytes) */ - r3 = CLIB_MEM_OVERFLOW_LOAD (_mm_loadu_si128, (__m128i *) (key + 16)); - - k[1] = r3; - r2 = _mm_aeskeygenassist_si128 (r3, 0x1); - aes192_key_assist (&r1, &r2, &r3); - k[1] = (__m128i) _mm_shuffle_pd ((__m128d) k[1], (__m128d) r1, 0); - k[2] = (__m128i) _mm_shuffle_pd ((__m128d) r1, (__m128d) r3, 1); - r2 = _mm_aeskeygenassist_si128 (r3, 0x2); - aes192_key_assist (&r1, &r2, &r3); - k[3] = r1; - - k[4] = r3; - r2 = _mm_aeskeygenassist_si128 (r3, 0x4); - aes192_key_assist (&r1, &r2, &r3); - k[4] = (__m128i) _mm_shuffle_pd ((__m128d) k[4], (__m128d) r1, 0); - k[5] = (__m128i) _mm_shuffle_pd ((__m128d) r1, (__m128d) r3, 1); - r2 = _mm_aeskeygenassist_si128 (r3, 0x8); - aes192_key_assist (&r1, &r2, &r3); - k[6] = r1; - - k[7] = r3; - r2 = _mm_aeskeygenassist_si128 (r3, 0x10); - aes192_key_assist (&r1, &r2, &r3); - k[7] = (__m128i) _mm_shuffle_pd ((__m128d) k[7], (__m128d) r1, 0); - k[8] = (__m128i) _mm_shuffle_pd ((__m128d) r1, (__m128d) r3, 1); - r2 = _mm_aeskeygenassist_si128 (r3, 0x20); - aes192_key_assist (&r1, &r2, &r3); - k[9] = r1; - - k[10] = r3; - r2 = _mm_aeskeygenassist_si128 (r3, 0x40); - aes192_key_assist (&r1, &r2, &r3); - k[10] = (__m128i) _mm_shuffle_pd ((__m128d) k[10], (__m128d) r1, 0); - k[11] = (__m128i) _mm_shuffle_pd ((__m128d) r1, (__m128d) r3, 1); - r2 = _mm_aeskeygenassist_si128 (r3, 0x80); - aes192_key_assist (&r1, &r2, &r3); - k[12] = r1; -} - -static_always_inline void -aes256_key_assist1 (__m128i * r1, __m128i * r2) -{ - __m128i r; - *r1 ^= r = _mm_slli_si128 (*r1, 0x4); - *r1 ^= r = _mm_slli_si128 (r, 0x4); - *r1 ^= _mm_slli_si128 (r, 0x4); - *r1 ^= *r2 = _mm_shuffle_epi32 (*r2, 0xff); -} - -static_always_inline void -aes256_key_assist2 (__m128i r1, __m128i * r3) -{ - __m128i r; - *r3 ^= r = _mm_slli_si128 (*r3, 0x4); - *r3 ^= r = _mm_slli_si128 (r, 0x4); - *r3 ^= _mm_slli_si128 (r, 0x4); - *r3 ^= _mm_shuffle_epi32 (_mm_aeskeygenassist_si128 (r1, 0x0), 0xaa); -} - -static_always_inline void -aes256_key_expand (__m128i * k, u8 * key) -{ - __m128i r1, r2, r3; - k[0] = r1 = _mm_loadu_si128 ((__m128i *) key); - k[1] = r3 = _mm_loadu_si128 ((__m128i *) (key + 16)); - r2 = _mm_aeskeygenassist_si128 (k[1], 0x01); - aes256_key_assist1 (&r1, &r2); - k[2] = r1; - aes256_key_assist2 (r1, &r3); - k[3] = r3; - r2 = _mm_aeskeygenassist_si128 (r3, 0x02); - aes256_key_assist1 (&r1, &r2); - k[4] = r1; - aes256_key_assist2 (r1, &r3); - k[5] = r3; - r2 = _mm_aeskeygenassist_si128 (r3, 0x04); - aes256_key_assist1 (&r1, &r2); - k[6] = r1; - aes256_key_assist2 (r1, &r3); - k[7] = r3; - r2 = _mm_aeskeygenassist_si128 (r3, 0x08); - aes256_key_assist1 (&r1, &r2); - k[8] = r1; - aes256_key_assist2 (r1, &r3); - k[9] = r3; - r2 = _mm_aeskeygenassist_si128 (r3, 0x10); - aes256_key_assist1 (&r1, &r2); - k[10] = r1; - aes256_key_assist2 (r1, &r3); - k[11] = r3; - r2 = _mm_aeskeygenassist_si128 (r3, 0x20); - aes256_key_assist1 (&r1, &r2); - k[12] = r1; - aes256_key_assist2 (r1, &r3); - k[13] = r3; - r2 = _mm_aeskeygenassist_si128 (r3, 0x40); - aes256_key_assist1 (&r1, &r2); - k[14] = r1; -} - -static_always_inline void -aes_key_expand (__m128i * k, u8 * key, aesni_key_size_t ks) -{ - switch (ks) - { - case AESNI_KEY_128: - aes128_key_expand (k, key); - break; - case AESNI_KEY_192: - aes192_key_expand (k, key); - break; - case AESNI_KEY_256: - aes256_key_expand (k, key); - break; - } -} - - -static_always_inline void -aes_key_enc_to_dec (__m128i * k, aesni_key_size_t ks) -{ - int rounds = AESNI_KEY_ROUNDS (ks); - __m128i r; - - r = k[rounds]; - k[rounds] = k[0]; - k[0] = r; - - for (int i = 1; i < (rounds / 2); i++) - { - r = k[rounds - i]; - k[rounds - i] = _mm_aesimc_si128 (k[i]); - k[i] = _mm_aesimc_si128 (r); - } - - k[rounds / 2] = _mm_aesimc_si128 (k[rounds / 2]); -} - -#endif /* __aesni_h__ */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ diff --git a/src/plugins/crypto_ia32/crypto_ia32.h b/src/plugins/crypto_ia32/crypto_ia32.h deleted file mode 100644 index e2b30071854..00000000000 --- a/src/plugins/crypto_ia32/crypto_ia32.h +++ /dev/null @@ -1,55 +0,0 @@ -/* - *------------------------------------------------------------------ - * Copyright (c) 2019 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - *------------------------------------------------------------------ - */ - -#ifndef __crypto_ia32_h__ -#define __crypto_ia32_h__ - -typedef void *(crypto_ia32_key_fn_t) (vnet_crypto_key_t * key); - -typedef struct -{ - __m128i cbc_iv[4]; -} crypto_ia32_per_thread_data_t; - -typedef struct -{ - u32 crypto_engine_index; - crypto_ia32_per_thread_data_t *per_thread_data; - crypto_ia32_key_fn_t *key_fn[VNET_CRYPTO_N_ALGS]; - void **key_data; -} crypto_ia32_main_t; - -extern crypto_ia32_main_t crypto_ia32_main; - -clib_error_t *crypto_ia32_aesni_cbc_init_sse42 (vlib_main_t * vm); -clib_error_t *crypto_ia32_aesni_cbc_init_avx2 (vlib_main_t * vm); -clib_error_t *crypto_ia32_aesni_cbc_init_avx512 (vlib_main_t * vm); -clib_error_t *crypto_ia32_aesni_cbc_init_vaes (vlib_main_t * vm); - -clib_error_t *crypto_ia32_aesni_gcm_init_sse42 (vlib_main_t * vm); -clib_error_t *crypto_ia32_aesni_gcm_init_avx2 (vlib_main_t * vm); -clib_error_t *crypto_ia32_aesni_gcm_init_avx512 (vlib_main_t * vm); -clib_error_t *crypto_ia32_aesni_gcm_init_vaes (vlib_main_t * vm); -#endif /* __crypto_ia32_h__ */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ diff --git a/src/plugins/crypto_ia32/ghash.h b/src/plugins/crypto_ia32/ghash.h deleted file mode 100644 index 0b2f629e28a..00000000000 --- a/src/plugins/crypto_ia32/ghash.h +++ /dev/null @@ -1,253 +0,0 @@ -/* - *------------------------------------------------------------------ - * Copyright (c) 2019 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - *------------------------------------------------------------------ - */ - -/* - *------------------------------------------------------------------ - * Copyright(c) 2018, Intel Corporation All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES * LOSS OF USE, - * DATA, OR PROFITS * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - *------------------------------------------------------------------ - */ - -/* - * Based on work by: Shay Gueron, Michael E. Kounavis, Erdinc Ozturk, - * Vinodh Gopal, James Guilford, Tomasz Kantecki - * - * References: - * [1] Vinodh Gopal et. al. Optimized Galois-Counter-Mode Implementation on - * Intel Architecture Processors. August, 2010 - * [2] Erdinc Ozturk et. al. Enabling High-Performance Galois-Counter-Mode on - * Intel Architecture Processors. October, 2012. - * [3] intel-ipsec-mb library, https://github.com/01org/intel-ipsec-mb.git - * - * Definitions: - * GF Galois Extension Field GF(2^128) - finite field where elements are - * represented as polynomials with coefficients in GF(2) with the - * highest degree of 127. Polynomials are represented as 128-bit binary - * numbers where each bit represents one coefficient. - * e.g. polynomial x^5 + x^3 + x + 1 is represented in binary 101011. - * H hash key (128 bit) - * POLY irreducible polynomial x^127 + x^7 + x^2 + x + 1 - * RPOLY irreducible polynomial x^128 + x^127 + x^126 + x^121 + 1 - * + addition in GF, which equals to XOR operation - * * multiplication in GF - * - * GF multiplication consists of 2 steps: - * - carry-less multiplication of two 128-bit operands into 256-bit result - * - reduction of 256-bit result into 128-bit with modulo POLY - * - * GHash is calculated on 128-bit blocks of data according to the following - * formula: - * GH = (GH + data) * hash_key - * - * To avoid bit-reflection of data, this code uses GF multipication - * with reversed polynomial: - * a * b * x^-127 mod RPOLY - * - * To improve computation speed table Hi is precomputed with powers of H', - * where H' is calculated as H<<1 mod RPOLY. - * This allows us to improve performance by deferring reduction. For example - * to caclulate ghash of 4 128-bit blocks of data (b0, b1, b2, b3), we can do: - * - * __i128 Hi[4]; - * ghash_precompute (H, Hi, 4); - * - * ghash_data_t _gd, *gd = &_gd; - * ghash_mul_first (gd, GH ^ b0, Hi[3]); - * ghash_mul_next (gd, b1, Hi[2]); - * ghash_mul_next (gd, b2, Hi[1]); - * ghash_mul_next (gd, b3, Hi[0]); - * ghash_reduce (gd); - * ghash_reduce2 (gd); - * GH = ghash_final (gd); - * - * Reduction step is split into 3 functions so it can be better interleaved - * with other code, (i.e. with AES computation). - */ - -#ifndef __ghash_h__ -#define __ghash_h__ - -/* on AVX-512 systems we can save a clock cycle by using ternary logic - instruction to calculate a XOR b XOR c */ -static_always_inline __m128i -ghash_xor3 (__m128i a, __m128i b, __m128i c) -{ -#if defined (__AVX512F__) - return _mm_ternarylogic_epi32 (a, b, c, 0x96); -#endif - return a ^ b ^ c; -} - -typedef struct -{ - __m128i mid, hi, lo, tmp_lo, tmp_hi; - int pending; -} ghash_data_t; - -static const __m128i ghash_poly = { 1, 0xC200000000000000 }; -static const __m128i ghash_poly2 = { 0x1C2000000, 0xC200000000000000 }; - -static_always_inline void -ghash_mul_first (ghash_data_t * gd, __m128i a, __m128i b) -{ - /* a1 * b1 */ - gd->hi = _mm_clmulepi64_si128 (a, b, 0x11); - /* a0 * b0 */ - gd->lo = _mm_clmulepi64_si128 (a, b, 0x00); - /* a0 * b1 ^ a1 * b0 */ - gd->mid = (_mm_clmulepi64_si128 (a, b, 0x01) ^ - _mm_clmulepi64_si128 (a, b, 0x10)); - - /* set gd->pending to 0 so next invocation of ghash_mul_next(...) knows that - there is no pending data in tmp_lo and tmp_hi */ - gd->pending = 0; -} - -static_always_inline void -ghash_mul_next (ghash_data_t * gd, __m128i a, __m128i b) -{ - /* a1 * b1 */ - __m128i hi = _mm_clmulepi64_si128 (a, b, 0x11); - /* a0 * b0 */ - __m128i lo = _mm_clmulepi64_si128 (a, b, 0x00); - - /* this branch will be optimized out by the compiler, and it allows us to - reduce number of XOR operations by using ternary logic */ - if (gd->pending) - { - /* there is peding data from previous invocation so we can XOR */ - gd->hi = ghash_xor3 (gd->hi, gd->tmp_hi, hi); - gd->lo = ghash_xor3 (gd->lo, gd->tmp_lo, lo); - gd->pending = 0; - } - else - { - /* there is no peding data from previous invocation so we postpone XOR */ - gd->tmp_hi = hi; - gd->tmp_lo = lo; - gd->pending = 1; - } - - /* gd->mid ^= a0 * b1 ^ a1 * b0 */ - gd->mid = ghash_xor3 (gd->mid, - _mm_clmulepi64_si128 (a, b, 0x01), - _mm_clmulepi64_si128 (a, b, 0x10)); -} - -static_always_inline void -ghash_reduce (ghash_data_t * gd) -{ - __m128i r; - - /* Final combination: - gd->lo ^= gd->mid << 64 - gd->hi ^= gd->mid >> 64 */ - __m128i midl = _mm_slli_si128 (gd->mid, 8); - __m128i midr = _mm_srli_si128 (gd->mid, 8); - - if (gd->pending) - { - gd->lo = ghash_xor3 (gd->lo, gd->tmp_lo, midl); - gd->hi = ghash_xor3 (gd->hi, gd->tmp_hi, midr); - } - else - { - gd->lo ^= midl; - gd->hi ^= midr; - } - - r = _mm_clmulepi64_si128 (ghash_poly2, gd->lo, 0x01); - gd->lo ^= _mm_slli_si128 (r, 8); -} - -static_always_inline void -ghash_reduce2 (ghash_data_t * gd) -{ - gd->tmp_lo = _mm_clmulepi64_si128 (ghash_poly2, gd->lo, 0x00); - gd->tmp_hi = _mm_clmulepi64_si128 (ghash_poly2, gd->lo, 0x10); -} - -static_always_inline __m128i -ghash_final (ghash_data_t * gd) -{ - return ghash_xor3 (gd->hi, _mm_srli_si128 (gd->tmp_lo, 4), - _mm_slli_si128 (gd->tmp_hi, 4)); -} - -static_always_inline __m128i -ghash_mul (__m128i a, __m128i b) -{ - ghash_data_t _gd, *gd = &_gd; - ghash_mul_first (gd, a, b); - ghash_reduce (gd); - ghash_reduce2 (gd); - return ghash_final (gd); -} - -static_always_inline void -ghash_precompute (__m128i H, __m128i * Hi, int count) -{ - __m128i r; - /* calcullate H<<1 mod poly from the hash key */ - r = _mm_srli_epi64 (H, 63); - H = _mm_slli_epi64 (H, 1); - H |= _mm_slli_si128 (r, 8); - r = _mm_srli_si128 (r, 8); - r = _mm_shuffle_epi32 (r, 0x24); - /* *INDENT-OFF* */ - r = _mm_cmpeq_epi32 (r, (__m128i) (u32x4) {1, 0, 0, 1}); - /* *INDENT-ON* */ - Hi[0] = H ^ (r & ghash_poly); - - /* calculate H^(i + 1) */ - for (int i = 1; i < count; i++) - Hi[i] = ghash_mul (Hi[0], Hi[i - 1]); -} - -#endif /* __ghash_h__ */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ diff --git a/src/plugins/crypto_ia32/main.c b/src/plugins/crypto_ia32/main.c deleted file mode 100644 index bcfd7fa6ffd..00000000000 --- a/src/plugins/crypto_ia32/main.c +++ /dev/null @@ -1,135 +0,0 @@ -/* - *------------------------------------------------------------------ - * Copyright (c) 2019 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - *------------------------------------------------------------------ - */ - -#include <vlib/vlib.h> -#include <vnet/plugin/plugin.h> -#include <vnet/crypto/crypto.h> -#include <crypto_ia32/crypto_ia32.h> - -crypto_ia32_main_t crypto_ia32_main; - -static void -crypto_ia32_key_handler (vlib_main_t * vm, vnet_crypto_key_op_t kop, - vnet_crypto_key_index_t idx) -{ - vnet_crypto_key_t *key = vnet_crypto_get_key (idx); - crypto_ia32_main_t *cm = &crypto_ia32_main; - - if (cm->key_fn[key->alg] == 0) - return; - - if (kop == VNET_CRYPTO_KEY_OP_DEL) - { - if (idx >= vec_len (cm->key_data)) - return; - - if (cm->key_data[idx] == 0) - return; - - clib_mem_free_s (cm->key_data[idx]); - cm->key_data[idx] = 0; - return; - } - - vec_validate_aligned (cm->key_data, idx, CLIB_CACHE_LINE_BYTES); - - if (kop == VNET_CRYPTO_KEY_OP_MODIFY && cm->key_data[idx]) - { - clib_mem_free_s (cm->key_data[idx]); - } - - cm->key_data[idx] = cm->key_fn[key->alg] (key); -} - -clib_error_t * -crypto_ia32_init (vlib_main_t * vm) -{ - crypto_ia32_main_t *cm = &crypto_ia32_main; - vlib_thread_main_t *tm = vlib_get_thread_main (); - clib_error_t *error = 0; - - if (clib_cpu_supports_x86_aes () == 0) - return 0; - - vec_validate_aligned (cm->per_thread_data, tm->n_vlib_mains - 1, - CLIB_CACHE_LINE_BYTES); - - cm->crypto_engine_index = - vnet_crypto_register_engine (vm, "ia32", 100, - "Intel IA32 ISA Optimized Crypto"); - - if (clib_cpu_supports_vaes ()) - error = crypto_ia32_aesni_cbc_init_vaes (vm); - else if (clib_cpu_supports_avx512f ()) - error = crypto_ia32_aesni_cbc_init_avx512 (vm); - else if (clib_cpu_supports_avx2 ()) - error = crypto_ia32_aesni_cbc_init_avx2 (vm); - else - error = crypto_ia32_aesni_cbc_init_sse42 (vm); - - if (error) - goto error; - - if (clib_cpu_supports_pclmulqdq ()) - { - if (clib_cpu_supports_vaes ()) - error = crypto_ia32_aesni_gcm_init_vaes (vm); - else if (clib_cpu_supports_avx512f ()) - error = crypto_ia32_aesni_gcm_init_avx512 (vm); - else if (clib_cpu_supports_avx2 ()) - error = crypto_ia32_aesni_gcm_init_avx2 (vm); - else - error = crypto_ia32_aesni_gcm_init_sse42 (vm); - - if (error) - goto error; - } - - vnet_crypto_register_key_handler (vm, cm->crypto_engine_index, - crypto_ia32_key_handler); - - -error: - if (error) - vec_free (cm->per_thread_data); - - return error; -} - -/* *INDENT-OFF* */ -VLIB_INIT_FUNCTION (crypto_ia32_init) = -{ - .runs_after = VLIB_INITS ("vnet_crypto_init"), -}; -/* *INDENT-ON* */ - -#include <vpp/app/version.h> - -/* *INDENT-OFF* */ -VLIB_PLUGIN_REGISTER () = { - .version = VPP_BUILD_VER, - .description = "Intel IA32 Software Crypto Engine", -}; -/* *INDENT-ON* */ - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |