mirror of
https://github.com/shadowsocks/shadowsocks-libev.git
synced 2026-10-21 06:23:52 +00:00
Max Lv
556c1f0696
src/crypto/aead.hpp implements the SIP004/SIP007 AEAD ciphers as value types: AeadEngine holds the libsodium or Mbed TLS GCM state by value, AeadTcpEncryptor/AeadTcpDecryptor frame the chunk stream with a fixed reassembly buffer, and aead_udp_seal/open handle packets. HKDF-SHA1 runs on stack SHA-1 state instead of Mbed TLS's allocating HMAC API. The bundled Mbed TLS config now enables MBEDTLS_BLOCK_CIPHER_C, which keeps the AES context inside mbedtls_gcm_context, so GCM key setup no longer allocates. That alone saves the C programs two allocations per connection. test_crypto_aead_cpp checks HKDF against RFC 5869 and crypto_hkdf, runs TCP streams and UDP packets between the C and C++ implementations in both directions for all five AEAD methods, and covers tampering, framing and salt replay. alloc_steady_crypto_aead runs it under the malloc counter and requires zero allocations across 600 new connections and 600 packets (tests/alloc_audit/check_steady.py). ss_strict_warnings() now applies -Wextra per source file so targets mixing new C++ with converted C modules keep the latter at -Wall, and Result gains move assignment.
37 lines
1.2 KiB
C
37 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-3.0-or-later */
|
|
#ifndef SS_MBEDTLS_CONFIG_H
|
|
#define SS_MBEDTLS_CONFIG_H
|
|
/* Only the primitives used by Shadowsocks. No TLS, X.509, networking, public
|
|
* key operations, PSA storage or independent entropy subsystem. Randomness
|
|
* is supplied by libsodium. MD5/SHA1 remain required by legacy AEAD key
|
|
* derivation even when legacy stream ciphers are disabled. */
|
|
#define MBEDTLS_AES_C
|
|
#define MBEDTLS_CIPHER_C
|
|
#define MBEDTLS_GCM_C
|
|
/* GCM on the block-cipher layer keeps the AES context inside
|
|
* mbedtls_gcm_context, so mbedtls_gcm_setkey() does not allocate. Mbed TLS
|
|
* only enables this by itself when MBEDTLS_CIPHER_C is off, and the legacy
|
|
* stream ciphers need MBEDTLS_CIPHER_C. */
|
|
#define MBEDTLS_BLOCK_CIPHER_C
|
|
#define MBEDTLS_MD_C
|
|
#define MBEDTLS_MD5_C
|
|
#define MBEDTLS_SHA1_C
|
|
#define MBEDTLS_SHA256_C
|
|
#define MBEDTLS_SHA512_C
|
|
#define MBEDTLS_PLATFORM_C
|
|
#define MBEDTLS_VERSION_C
|
|
#define MBEDTLS_VERSION_FEATURES
|
|
#define MBEDTLS_CIPHER_MODE_CTR
|
|
#define MBEDTLS_CIPHER_MODE_CFB
|
|
#define MBEDTLS_CAMELLIA_C
|
|
#if defined(__x86_64__) || defined(_M_X64)
|
|
#define MBEDTLS_AESNI_C
|
|
#if defined(__GNUC__) || defined(__clang__)
|
|
#define MBEDTLS_HAVE_ASM
|
|
#endif
|
|
#endif
|
|
#if defined(__aarch64__)
|
|
#define MBEDTLS_AESCE_C
|
|
#endif
|
|
#endif
|