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Diffstat (limited to 'htp/htp_decompressors.h')
| -rw-r--r-- | htp/htp_decompressors.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/htp/htp_decompressors.h b/htp/htp_decompressors.h new file mode 100644 index 0000000..a357de1 --- /dev/null +++ b/htp/htp_decompressors.h @@ -0,0 +1,94 @@ +/*************************************************************************** + * Copyright (c) 2009-2010 Open Information Security Foundation + * Copyright (c) 2010-2013 Qualys, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + + * - Neither the name of the Qualys, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + ***************************************************************************/ + +/** + * @file + * @author Ivan Ristic <ivanr@webkreator.com> + */ + +#ifndef _HTP_DECOMPRESSORS_H +#define _HTP_DECOMPRESSORS_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include <zlib.h> +#include "lzma/LzmaDec.h" + +typedef struct htp_decompressor_gzip_t htp_decompressor_gzip_t; +typedef struct htp_decompressor_t htp_decompressor_t; + +#define GZIP_BUF_SIZE 8192 + +#define DEFLATE_MAGIC_1 0x1f +#define DEFLATE_MAGIC_2 0x8b + +struct htp_decompressor_t { + // no longer used + htp_status_t (*decompress)(htp_decompressor_t *, htp_tx_data_t *); + htp_status_t (*callback)(htp_tx_data_t *); + // no longer used + void (*destroy)(htp_decompressor_t *); + struct htp_decompressor_t *next; + struct timeval time_before; + int32_t time_spent; + uint32_t nb_callbacks; + uint8_t passthrough; /**< decompression failed, pass through raw data */ +}; + +struct htp_decompressor_gzip_t { + htp_decompressor_t super; + #if 0 + int initialized; + #endif + int zlib_initialized; + uint8_t restart; /**< deflate restarted to try rfc1950 instead of 1951 */ + z_stream stream; + uint8_t header[LZMA_PROPS_SIZE + 8]; + uint8_t header_len; + CLzmaDec state; + unsigned char *buffer; + unsigned long crc; +}; + +htp_decompressor_t *htp_gzip_decompressor_create(htp_connp_t *connp, enum htp_content_encoding_t format); +htp_status_t htp_gzip_decompressor_decompress(htp_decompressor_t *drec, htp_tx_data_t *d); +void htp_gzip_decompressor_destroy(htp_decompressor_t *drec); + +#ifdef __cplusplus +} +#endif + +#endif /* _HTP_DECOMPRESSORS_H */ + |