haproxy/include/haproxy/qpack-dec.h
Amaury Denoyelle 2dabcf30be MINOR: qpack: prepare error renaming
There is two distinct enums both related to QPACK error management. The
first one is dedicated to RFC defined code. The other one is a set of
internal values returned by qpack_decode_fs(). There has been issues
discovered recently due to the confusion between them.

Rename internal values with the prefix QPACK_RET_*. The older name
QPACK_ERR_* will be used in a future commit for the first enum.
2024-05-16 10:31:17 +02:00

57 lines
1.8 KiB
C

/*
* QPACK decompressor
*
* Copyright 2021 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, version 2.1
* exclusively.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _HAPROXY_QPACK_DEC_H
#define _HAPROXY_QPACK_DEC_H
#include <inttypes.h>
struct buffer;
struct http_hdr;
/* Internal QPACK processing errors.
*Nothing to see with the RFC.
*/
enum {
QPACK_RET_NONE = 0, /* no error */
QPACK_RET_DECOMP, /* corresponds to RFC 9204 decompression error */
QPACK_RET_RIC, /* cannot decode Required Insert Count prefix field */
QPACK_RET_DB, /* cannot decode Delta Base prefix field */
QPACK_RET_TRUNCATED, /* truncated stream */
QPACK_RET_HUFFMAN, /* huffman decoding error */
QPACK_RET_TOO_LARGE, /* decoded request/response is too large */
};
struct qpack_dec {
/* Insert count */
uint64_t ic;
/* Known received count */
uint64_t krc;
};
int qpack_decode_fs(const unsigned char *buf, uint64_t len, struct buffer *tmp,
struct http_hdr *list, int list_size);
int qpack_decode_enc(struct buffer *buf, int fin, void *ctx);
int qpack_decode_dec(struct buffer *buf, int fin, void *ctx);
int qpack_err_decode(const int value);
#endif /* _HAPROXY_QPACK_DEC_H */