mirror of
https://github.com/shadowsocks/shadowsocks-libev.git
synced 2026-10-21 14:33:55 +00:00
Max Lv
34da0def95
The programs now use only the C++ codecs. The C stream/AEAD/AEAD-2022
implementations stay as the reference the differential tests and the C
unit tests compare against. Key derivation and the cipher tables used by
the doc snippets move to src/crypto/keys.{hpp,cpp}.
ss-manager keeps its servers in an ss_list (at most MAX_PORT_NUM,
looked up only on control messages) instead of a uthash table, and
tests/test_manager.py covers add/ping/list/remove end to end.
85 lines
2.8 KiB
C
85 lines
2.8 KiB
C
/*
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* aead_internal.h - Internal interface shared by aead.cpp and aead2022.cpp
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*
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* Copyright (C) 2013 - 2026, Max Lv <max.c.lv@gmail.com>
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*
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* This file is part of the shadowsocks-libev.
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*
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* shadowsocks-libev is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* shadowsocks-libev is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with shadowsocks-libev; see the file COPYING. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#ifndef _AEAD_INTERNAL_H
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#define _AEAD_INTERNAL_H
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#include "crypto.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* AEAD method identifiers (indexes into the supported_aead_ciphers tables) */
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#define AES128GCM 0
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#define AES192GCM 1
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#define AES256GCM 2
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#define AES128GCM2022 3
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#define AES256GCM2022 4
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/*
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* methods above require a gcm context
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* methods below don't require it,
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* then we need to fake one
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*/
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#define CHACHA20POLY1305IETF 5
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#define CHACHA20POLY1305IETF2022 6
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#ifdef FS_HAVE_XCHACHA20IETF
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#define XCHACHA20POLY1305IETF 7
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#endif
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static inline int
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is_aead_2022(int method)
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{
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return method == AES128GCM2022 || method == AES256GCM2022
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|| method == CHACHA20POLY1305IETF2022;
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}
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/* Low-level one-shot AEAD operations implemented in aead.cpp */
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int aead_cipher_encrypt(cipher_ctx_t *cipher_ctx,
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uint8_t *c, size_t *clen,
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uint8_t *m, size_t mlen,
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uint8_t *ad, size_t adlen,
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uint8_t *n, uint8_t *k);
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int aead_cipher_decrypt(cipher_ctx_t *cipher_ctx,
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uint8_t *p, size_t *plen,
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uint8_t *m, size_t mlen,
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uint8_t *ad, size_t adlen,
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uint8_t *n, uint8_t *k);
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void aead_cipher_ctx_set_key(cipher_ctx_t *cipher_ctx, int enc);
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/* AEAD-2022 pieces implemented in aead2022.cpp */
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int aead_get_role(void);
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void ss2022_derive_subkey(const uint8_t *key, size_t key_len,
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const uint8_t *salt, size_t salt_len,
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uint8_t *subkey, size_t subkey_len);
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int ss2022_tcp_encrypt(buffer_t *plaintext, cipher_ctx_t *cipher_ctx,
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size_t capacity);
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int ss2022_tcp_decrypt(buffer_t *ciphertext, cipher_ctx_t *cipher_ctx,
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size_t capacity);
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#ifdef __cplusplus
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}
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#endif
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#endif // _AEAD_INTERNAL_H
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