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Diffstat (limited to 'include/haproxy/qpack-dec.h')
-rw-r--r-- | include/haproxy/qpack-dec.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/include/haproxy/qpack-dec.h b/include/haproxy/qpack-dec.h new file mode 100644 index 0000000..993f450 --- /dev/null +++ b/include/haproxy/qpack-dec.h @@ -0,0 +1,51 @@ +/* + * 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 + +struct buffer; +struct http_hdr; + +/* Internal QPACK processing errors. + *Nothing to see with the RFC. + */ +enum { + QPACK_ERR_NONE = 0, /* no error */ + QPACK_ERR_RIC, /* cannot decode Required Insert Count prefix field */ + QPACK_ERR_DB, /* cannot decode Delta Base prefix field */ + QPACK_ERR_TRUNCATED, /* truncated stream */ + QPACK_ERR_HUFFMAN, /* huffman decoding error */ + QPACK_ERR_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); + +#endif /* _HAPROXY_QPACK_DEC_H */ |