139 lines
5.2 KiB
C++
139 lines
5.2 KiB
C++
/*
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* nghttp2 - HTTP/2 C Library
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*
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* Copyright (c) 2021 Tatsuhiro Tsujikawa
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef SHRPX_QUIC_H
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#define SHRPX_QUIC_H
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#include "shrpx.h"
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#include <stdint.h>
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#include <functional>
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#include <ngtcp2/ngtcp2.h>
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#include "network.h"
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using namespace nghttp2;
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namespace std {
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template <> struct hash<ngtcp2_cid> {
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std::size_t operator()(const ngtcp2_cid &cid) const noexcept {
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// FNV-1a 64bits variant
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constexpr uint64_t basis = 0xCBF29CE484222325ULL;
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const uint8_t *p = cid.data, *end = cid.data + cid.datalen;
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uint64_t h = basis;
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for (; p != end;) {
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h ^= *p++;
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h *= basis;
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}
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return static_cast<size_t>(h);
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}
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};
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} // namespace std
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bool operator==(const ngtcp2_cid &lhs, const ngtcp2_cid &rhs);
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namespace shrpx {
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struct UpstreamAddr;
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struct QUICKeyingMaterials;
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struct QUICKeyingMaterial;
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constexpr size_t SHRPX_QUIC_SCIDLEN = 20;
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constexpr size_t SHRPX_QUIC_SERVER_IDLEN = 4;
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// SHRPX_QUIC_CID_PREFIXLEN includes SHRPX_QUIC_SERVER_IDLEN.
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constexpr size_t SHRPX_QUIC_CID_PREFIXLEN = 8;
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constexpr size_t SHRPX_QUIC_CID_PREFIX_OFFSET = 1;
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constexpr size_t SHRPX_QUIC_DECRYPTED_DCIDLEN = 16;
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constexpr size_t SHRPX_QUIC_CID_ENCRYPTION_KEYLEN = 16;
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constexpr size_t SHRPX_QUIC_MAX_UDP_PAYLOAD_SIZE = 1472;
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constexpr size_t SHRPX_QUIC_CONN_CLOSE_PKTLEN = 256;
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constexpr size_t SHRPX_QUIC_STATELESS_RESET_BURST = 100;
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constexpr size_t SHRPX_QUIC_SECRET_RESERVEDLEN = 4;
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constexpr size_t SHRPX_QUIC_SECRETLEN = 32;
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constexpr size_t SHRPX_QUIC_SALTLEN = 32;
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ngtcp2_tstamp quic_timestamp();
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int quic_send_packet(const UpstreamAddr *faddr, const sockaddr *remote_sa,
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size_t remote_salen, const sockaddr *local_sa,
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size_t local_salen, const ngtcp2_pkt_info &pi,
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const uint8_t *data, size_t datalen, size_t gso_size);
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int generate_quic_retry_connection_id(ngtcp2_cid &cid, size_t cidlen,
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const uint8_t *server_id, uint8_t km_id,
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const uint8_t *key);
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int generate_quic_connection_id(ngtcp2_cid &cid, size_t cidlen,
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const uint8_t *cid_prefix, uint8_t km_id,
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const uint8_t *key);
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int encrypt_quic_connection_id(uint8_t *dest, const uint8_t *src,
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const uint8_t *key);
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int decrypt_quic_connection_id(uint8_t *dest, const uint8_t *src,
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const uint8_t *key);
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int generate_quic_hashed_connection_id(ngtcp2_cid &dest,
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const Address &remote_addr,
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const Address &local_addr,
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const ngtcp2_cid &cid);
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int generate_quic_stateless_reset_token(uint8_t *token, const ngtcp2_cid &cid,
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const uint8_t *secret,
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size_t secretlen);
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int generate_retry_token(uint8_t *token, size_t &tokenlen, const sockaddr *sa,
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socklen_t salen, const ngtcp2_cid &retry_scid,
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const ngtcp2_cid &odcid, const uint8_t *secret,
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size_t secretlen);
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int verify_retry_token(ngtcp2_cid &odcid, const uint8_t *token, size_t tokenlen,
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const ngtcp2_cid &dcid, const sockaddr *sa,
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socklen_t salen, const uint8_t *secret,
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size_t secretlen);
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int generate_token(uint8_t *token, size_t &tokenlen, const sockaddr *sa,
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size_t salen, const uint8_t *secret, size_t secretlen);
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int verify_token(const uint8_t *token, size_t tokenlen, const sockaddr *sa,
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socklen_t salen, const uint8_t *secret, size_t secretlen);
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int generate_quic_connection_id_encryption_key(uint8_t *key, size_t keylen,
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const uint8_t *secret,
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size_t secretlen,
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const uint8_t *salt,
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size_t saltlen);
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const QUICKeyingMaterial *
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select_quic_keying_material(const QUICKeyingMaterials &qkms,
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const uint8_t *cid);
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} // namespace shrpx
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#endif // SHRPX_QUIC_H
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