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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 17:40:56 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 17:40:56 +0000
commitc248d29056abbc1fc4c5dc178bab48fb8d2c1fcb (patch)
tree4a13fc30604509224504e1911bc976e5df7bdf05 /htp/htp_private.h
parentInitial commit. (diff)
downloadlibhtp-c248d29056abbc1fc4c5dc178bab48fb8d2c1fcb.tar.xz
libhtp-c248d29056abbc1fc4c5dc178bab48fb8d2c1fcb.zip
Adding upstream version 1:0.5.47.upstream/1%0.5.47
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--htp/htp_private.h269
1 files changed, 269 insertions, 0 deletions
diff --git a/htp/htp_private.h b/htp/htp_private.h
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+/***************************************************************************
+ * 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_PRIVATE_H
+#define _HTP_PRIVATE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(__cplusplus) && !defined(__STDC_FORMAT_MACROS)
+/* C99 requires that inttypes.h only exposes PRI* macros
+ * for C++ implementations if this is defined: */
+#define __STDC_FORMAT_MACROS
+#endif
+
+#include <ctype.h>
+#include <errno.h>
+#include <iconv.h>
+#include <inttypes.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdint.h>
+
+#include "htp_config_auto_gen.h"
+#include "htp.h"
+#include "htp_config_private.h"
+#include "htp_connection_parser_private.h"
+#include "htp_connection_private.h"
+#include "htp_list_private.h"
+#include "htp_multipart_private.h"
+#include "htp_table_private.h"
+
+#ifndef CR
+#define CR '\r'
+#endif
+
+#ifndef LF
+#define LF '\n'
+#endif
+
+// 1048576 is 1 Mbyte
+#define HTP_LZMA_MEMLIMIT 1048576
+//deflate max ratio is about 1000
+#define HTP_COMPRESSION_BOMB_RATIO 2048
+#define HTP_COMPRESSION_BOMB_LIMIT 1048576
+// 0.1 second
+#define HTP_COMPRESSION_TIME_LIMIT_USEC 100000
+// test time for compression every 256 callbacks
+#define HTP_COMPRESSION_TIME_FREQ_TEST 256
+
+#define HTP_FIELD_LIMIT_HARD 18000
+#define HTP_FIELD_LIMIT_SOFT 9000
+
+#define HTP_VALID_STATUS_MIN 100
+#define HTP_VALID_STATUS_MAX 999
+
+// Parser states, in the order in which they are
+// used as a single transaction is processed.
+
+htp_status_t htp_connp_REQ_IDLE(htp_connp_t *connp);
+htp_status_t htp_connp_REQ_LINE(htp_connp_t *connp);
+htp_status_t htp_connp_REQ_LINE_complete(htp_connp_t *connp);
+htp_status_t htp_connp_REQ_PROTOCOL(htp_connp_t *connp);
+htp_status_t htp_connp_REQ_HEADERS(htp_connp_t *connp);
+htp_status_t htp_connp_REQ_CONNECT_CHECK(htp_connp_t *connp);
+htp_status_t htp_connp_REQ_CONNECT_WAIT_RESPONSE(htp_connp_t *connp);
+htp_status_t htp_connp_REQ_CONNECT_PROBE_DATA(htp_connp_t *connp);
+htp_status_t htp_connp_REQ_BODY_DETERMINE(htp_connp_t *connp);
+htp_status_t htp_connp_REQ_BODY_IDENTITY(htp_connp_t *connp);
+htp_status_t htp_connp_REQ_BODY_CHUNKED_LENGTH(htp_connp_t *connp);
+htp_status_t htp_connp_REQ_BODY_CHUNKED_DATA(htp_connp_t *connp);
+htp_status_t htp_connp_REQ_BODY_CHUNKED_DATA_END(htp_connp_t *connp);
+htp_status_t htp_connp_REQ_FINALIZE(htp_connp_t *connp);
+htp_status_t htp_connp_REQ_IGNORE_DATA_AFTER_HTTP_0_9(htp_connp_t *connp);
+
+htp_status_t htp_connp_RES_IDLE(htp_connp_t *connp);
+htp_status_t htp_connp_RES_LINE(htp_connp_t *connp);
+htp_status_t htp_connp_RES_HEADERS(htp_connp_t *connp);
+htp_status_t htp_connp_RES_BODY_DETERMINE(htp_connp_t *connp);
+htp_status_t htp_connp_RES_BODY_IDENTITY_CL_KNOWN(htp_connp_t *connp);
+htp_status_t htp_connp_RES_BODY_IDENTITY_STREAM_CLOSE(htp_connp_t *connp);
+htp_status_t htp_connp_RES_BODY_CHUNKED_LENGTH(htp_connp_t *connp);
+htp_status_t htp_connp_RES_BODY_CHUNKED_DATA(htp_connp_t *connp);
+htp_status_t htp_connp_RES_BODY_CHUNKED_DATA_END(htp_connp_t *connp);
+htp_status_t htp_connp_RES_FINALIZE(htp_connp_t *connp);
+
+// Parsing functions
+
+htp_status_t htp_parse_request_line_generic(htp_connp_t *connp);
+htp_status_t htp_parse_request_line_generic_ex(htp_connp_t *connp, int nul_terminates);
+htp_status_t htp_parse_request_header_generic(htp_connp_t *connp, htp_header_t *h, unsigned char *data, size_t len);
+htp_status_t htp_process_request_header_generic(htp_connp_t *, unsigned char *data, size_t len);
+
+htp_status_t htp_parse_request_line_apache_2_2(htp_connp_t *connp);
+htp_status_t htp_process_request_header_apache_2_2(htp_connp_t *, unsigned char *data, size_t len);
+
+htp_status_t htp_parse_response_line_generic(htp_connp_t *connp);
+htp_status_t htp_parse_response_header_generic(htp_connp_t *connp, htp_header_t *h, unsigned char *data, size_t len);
+htp_status_t htp_process_response_header_generic(htp_connp_t *connp, unsigned char *data, size_t len);
+
+
+// Private transaction functions
+
+htp_status_t htp_tx_state_response_complete_ex(htp_tx_t *tx, int hybrid_mode);
+
+
+// Utility functions
+
+int htp_convert_method_to_number(bstr *);
+int htp_is_lws(int c);
+int htp_is_separator(int c);
+int htp_is_text(int c);
+int htp_is_token(int c);
+int htp_chomp(unsigned char *data, size_t *len);
+int htp_is_space(int c);
+
+int htp_parse_protocol(bstr *protocol);
+
+int htp_is_line_empty(unsigned char *data, size_t len);
+int htp_is_line_whitespace(unsigned char *data, size_t len);
+
+int htp_connp_is_line_folded(unsigned char *data, size_t len);
+int htp_is_folding_char(int c);
+int htp_connp_is_line_terminator(htp_connp_t *connp, unsigned char *data, size_t len, int next_no_lf);
+int htp_connp_is_line_ignorable(htp_connp_t *connp, unsigned char *data, size_t len);
+
+int htp_parse_uri(bstr *input, htp_uri_t **uri);
+htp_status_t htp_parse_hostport(bstr *authority, bstr **hostname, bstr **port, int *port_number, int *invalid);
+htp_status_t htp_parse_header_hostport(bstr *authority, bstr **hostname, bstr **port, int *port_number, uint64_t *flags);
+int htp_validate_hostname(bstr *hostname);
+int htp_parse_uri_hostport(htp_connp_t *connp, bstr *input, htp_uri_t *uri);
+int htp_normalize_parsed_uri(htp_tx_t *tx, htp_uri_t *parsed_uri_incomplete, htp_uri_t *parsed_uri);
+bstr *htp_normalize_hostname_inplace(bstr *input);
+
+int htp_decode_path_inplace(htp_tx_t *tx, bstr *path);
+
+ int htp_prenormalize_uri_path_inplace(bstr *s, int *flags, int case_insensitive, int backslash, int decode_separators, int remove_consecutive);
+void htp_normalize_uri_path_inplace(bstr *s);
+
+void htp_utf8_decode_path_inplace(htp_cfg_t *cfg, htp_tx_t *tx, bstr *path);
+void htp_utf8_validate_path(htp_tx_t *tx, bstr *path);
+
+int64_t htp_parse_content_length(bstr *b, htp_connp_t *connp);
+int64_t htp_parse_chunked_length(unsigned char *data, size_t len, int *extension);
+int64_t htp_parse_positive_integer_whitespace(unsigned char *data, size_t len, int base);
+int htp_parse_status(bstr *status);
+int htp_parse_authorization_digest(htp_connp_t *connp, htp_header_t *auth_header);
+int htp_parse_authorization_basic(htp_connp_t *connp, htp_header_t *auth_header);
+int htp_parse_authorization_bearer(htp_connp_t *connp, htp_header_t *auth_header);
+
+void htp_print_log(FILE *stream, htp_log_t *log);
+
+void fprint_bstr(FILE *stream, const char *name, bstr *b);
+void fprint_raw_data(FILE *stream, const char *name, const void *data, size_t len);
+void fprint_raw_data_ex(FILE *stream, const char *name, const void *data, size_t offset, size_t len);
+
+char *htp_connp_in_state_as_string(htp_connp_t *connp);
+char *htp_connp_out_state_as_string(htp_connp_t *connp);
+char *htp_tx_request_progress_as_string(htp_tx_t *tx);
+char *htp_tx_response_progress_as_string(htp_tx_t *tx);
+
+bstr *htp_unparse_uri_noencode(htp_uri_t *uri);
+
+int htp_treat_response_line_as_body(const uint8_t *data, size_t len);
+
+htp_status_t htp_req_run_hook_body_data(htp_connp_t *connp, htp_tx_data_t *d);
+htp_status_t htp_res_run_hook_body_data(htp_connp_t *connp, htp_tx_data_t *d);
+
+htp_status_t htp_ch_urlencoded_callback_request_body_data(htp_tx_data_t *d);
+htp_status_t htp_ch_urlencoded_callback_request_headers(htp_tx_t *tx);
+htp_status_t htp_ch_urlencoded_callback_request_line(htp_tx_t *tx);
+htp_status_t htp_ch_multipart_callback_request_body_data(htp_tx_data_t *d);
+htp_status_t htp_ch_multipart_callback_request_headers(htp_tx_t *tx);
+
+htp_status_t htp_php_parameter_processor(htp_param_t *p);
+
+int htp_transcode_params(htp_connp_t *connp, htp_table_t **params, int destroy_old);
+int htp_transcode_bstr(iconv_t cd, bstr *input, bstr **output);
+
+int htp_parse_single_cookie_v0(htp_connp_t *connp, unsigned char *data, size_t len);
+int htp_parse_cookies_v0(htp_connp_t *connp);
+int htp_parse_authorization(htp_connp_t *connp);
+
+htp_status_t htp_extract_quoted_string_as_bstr(unsigned char *data, size_t len, bstr **out, size_t *endoffset);
+
+htp_header_t *htp_connp_header_parse(htp_connp_t *, unsigned char *, size_t);
+
+htp_status_t htp_parse_ct_header(bstr *header, bstr **ct);
+
+htp_status_t htp_connp_req_receiver_finalize_clear(htp_connp_t *connp);
+htp_status_t htp_connp_res_receiver_finalize_clear(htp_connp_t *connp);
+
+htp_status_t htp_tx_finalize(htp_tx_t *tx);
+
+int htp_tx_is_complete(htp_tx_t *tx);
+
+htp_status_t htp_tx_state_request_complete_partial(htp_tx_t *tx);
+
+void htp_connp_tx_remove(htp_connp_t *connp, htp_tx_t *tx);
+
+void htp_tx_destroy_incomplete(htp_tx_t *tx);
+
+htp_status_t htp_tx_req_process_body_data_ex(htp_tx_t *tx, const void *data, size_t len);
+htp_status_t htp_tx_res_process_body_data_ex(htp_tx_t *tx, const void *data, size_t len);
+
+htp_status_t htp_tx_urldecode_uri_inplace(htp_tx_t *tx, bstr *input);
+htp_status_t htp_tx_urldecode_params_inplace(htp_tx_t *tx, bstr *input);
+
+void htp_connp_destroy_decompressors(htp_connp_t *connp);
+
+htp_status_t htp_header_has_token(const unsigned char *hvp, size_t hvlen, const unsigned char *value);
+
+#ifndef HAVE_STRLCAT
+size_t strlcat(char *dst, const char *src, size_t size);
+#endif
+
+#ifndef HAVE_STRLCPY
+size_t strlcpy(char *dst, const char *src, size_t size);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+// as CURL_MAX_HTTP_HEADER
+#define HTP_MAX_HEADER_FOLDED 102400
+
+#endif /* _HTP_PRIVATE_H */
+