mirror of
https://github.com/nodejs/node.git
synced 2025-05-14 18:26:05 +00:00
43f599b534
Reintroduces the ngtcp2 and nghttp3 dependencies, building those by default if the vendored-in openssl (with QUIC support) is used or the shared openssl defines `OPENSSL_INFO_QUIC`. Upates the version metadata to reflect whether ngtcp2 and nghttp3 are present. ngtcp2 as of2381f7f7b6nghttp3 as of66ad30f0a8Signed-off-by: James M Snell <jasnell@gmail.com> PR-URL: https://github.com/nodejs/node/pull/37682 Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
109 lines
4.1 KiB
C
109 lines
4.1 KiB
C
/*
|
|
* nghttp3
|
|
*
|
|
* Copyright (c) 2019 nghttp3 contributors
|
|
* Copyright (c) 2013 nghttp2 contributors
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
#ifndef NGHTTP3_QPACK_HUFFMAN_H
|
|
#define NGHTTP3_QPACK_HUFFMAN_H
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include <config.h>
|
|
#endif /* HAVE_CONFIG_H */
|
|
|
|
#include <nghttp3/nghttp3.h>
|
|
|
|
typedef struct nghttp3_qpack_huffman_sym {
|
|
/* The number of bits in this code */
|
|
uint32_t nbits;
|
|
/* Huffman code aligned to LSB */
|
|
uint32_t code;
|
|
} nghttp3_qpack_huffman_sym;
|
|
|
|
extern const nghttp3_qpack_huffman_sym huffman_sym_table[];
|
|
|
|
size_t nghttp3_qpack_huffman_encode_count(const uint8_t *src, size_t len);
|
|
|
|
uint8_t *nghttp3_qpack_huffman_encode(uint8_t *dest, const uint8_t *src,
|
|
size_t srclen);
|
|
|
|
typedef enum nghttp3_qpack_huffman_decode_flag {
|
|
/* FSA accepts this state as the end of huffman encoding
|
|
sequence. */
|
|
NGHTTP3_QPACK_HUFFMAN_ACCEPTED = 1 << 14,
|
|
/* This state emits symbol */
|
|
NGHTTP3_QPACK_HUFFMAN_SYM = 1 << 15,
|
|
} nghttp3_qpack_huffman_decode_flag;
|
|
|
|
typedef struct nghttp3_qpack_huffman_decode_node {
|
|
/* fstate is the current huffman decoding state, which is actually
|
|
the node ID of internal huffman tree with
|
|
nghttp3_qpack_huffman_decode_flag OR-ed. We have 257 leaf nodes,
|
|
but they are identical to root node other than emitting a symbol,
|
|
so we have 256 internal nodes [1..256], inclusive. The node ID
|
|
256 is a special node and it is a terminal state that means
|
|
decoding failed. */
|
|
uint16_t fstate;
|
|
/* symbol if NGHTTP3_QPACK_HUFFMAN_SYM flag set */
|
|
uint8_t sym;
|
|
} nghttp3_qpack_huffman_decode_node;
|
|
|
|
typedef struct nghttp3_qpack_huffman_decode_context {
|
|
/* fstate is the current huffman decoding state. */
|
|
uint16_t fstate;
|
|
} nghttp3_qpack_huffman_decode_context;
|
|
|
|
extern const nghttp3_qpack_huffman_decode_node qpack_huffman_decode_table[][16];
|
|
|
|
void nghttp3_qpack_huffman_decode_context_init(
|
|
nghttp3_qpack_huffman_decode_context *ctx);
|
|
|
|
/*
|
|
* nghttp3_qpack_huffman_decode decodes huffman encoded byte string
|
|
* stored in |src| of length |srclen|. |ctx| is a decoding context.
|
|
* |ctx| remembers the decoding state, and caller can call this
|
|
* function multiple times to feed each chunk of huffman encoded
|
|
* substring. |fin| must be nonzero if |src| contains the last chunk
|
|
* of huffman string. The decoded string is written to the buffer
|
|
* pointed by |dest|. This function assumes that the buffer pointed
|
|
* by |dest| contains enough memory to store decoded byte string.
|
|
*
|
|
* This function returns the number of bytes written to |dest|, or one
|
|
* of the following negative error codes:
|
|
*
|
|
* NGHTTP3_ERR_QPACK_FATAL
|
|
* Could not decode huffman string.
|
|
*/
|
|
nghttp3_ssize
|
|
nghttp3_qpack_huffman_decode(nghttp3_qpack_huffman_decode_context *ctx,
|
|
uint8_t *dest, const uint8_t *src, size_t srclen,
|
|
int fin);
|
|
|
|
/*
|
|
* nghttp3_qpack_huffman_decode_failure_state returns nonzero if |ctx|
|
|
* indicates that huffman decoding context is in failure state.
|
|
*/
|
|
int nghttp3_qpack_huffman_decode_failure_state(
|
|
nghttp3_qpack_huffman_decode_context *ctx);
|
|
|
|
#endif /* NGHTTP3_QPACK_HUFFMAN_H */
|