/usr/include/libndpi-1.5.0/libndpi/ndpi_main.h is in libndpi-dev 1.5.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* ndpi_main.h
*
* Copyright (C) 2011-14 - ntop.org
* Copyright (C) 2009-2011 by ipoque GmbH
*
* This file is part of nDPI, an open source deep packet inspection
* library based on the OpenDPI and PACE technology by ipoque GmbH
*
* nDPI 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, either version 3 of the License, or
* (at your option) any later version.
*
* nDPI 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 nDPI. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef __NDPI_MAIN_INCLUDE_FILE__
#define __NDPI_MAIN_INCLUDE_FILE__
#ifndef __KERNEL__
#include <stdint.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <pthread.h>
#include <ctype.h>
#endif
#ifndef WIN32
#ifndef __KERNEL__
#include <sys/time.h>
#endif
#if !defined __APPLE__ && !defined __FreeBSD__ && !defined __NetBSD__ && !defined __OpenBSD__
#ifndef __KERNEL__
#include <endian.h>
#include <byteswap.h>
#else
#include <asm/byteorder.h>
#include <linux/ctype.h>
#endif
#endif
/* default includes */
#ifndef __KERNEL__
#include <sys/param.h>
#include <limits.h>
#endif
#endif
#include "ndpi_win32.h"
#include "ndpi_unix.h"
#include "ndpi_define.h"
#include "ndpi_protocol_ids.h"
#include "ndpi_typedefs.h"
#include "ndpi_protocols.h"
void *ndpi_tdelete(const void * __restrict, void ** __restrict,
int (*)(const void *, const void *));
void *ndpi_tfind(const void *, void *, int (*)(const void *, const void *));
void *ndpi_tsearch(const void *, void**, int (*)(const void *, const void *));
void ndpi_twalk(const void *, void (*)(const void *, ndpi_VISIT, int, void*), void *user_data);
void ndpi_tdestroy(void *vrootp, void (*freefct)(void *));
int NDPI_BITMASK_COMPARE(NDPI_PROTOCOL_BITMASK a, NDPI_PROTOCOL_BITMASK b);
int NDPI_BITMASK_IS_EMPTY(NDPI_PROTOCOL_BITMASK a);
void NDPI_DUMP_BITMASK(NDPI_PROTOCOL_BITMASK a);
extern u_int8_t ndpi_net_match(u_int32_t ip_to_check,
u_int32_t net,
u_int32_t num_bits);
extern u_int8_t ndpi_ips_match(u_int32_t src, u_int32_t dst,
u_int32_t net, u_int32_t num_bits);
extern char* ndpi_strnstr(const char *s, const char *find, size_t slen);
u_int16_t ntohs_ndpi_bytestream_to_number(const u_int8_t * str, u_int16_t max_chars_to_read, u_int16_t * bytes_read);
u_int32_t ndpi_bytestream_to_number(const u_int8_t * str, u_int16_t max_chars_to_read, u_int16_t * bytes_read);
u_int64_t ndpi_bytestream_to_number64(const u_int8_t * str, u_int16_t max_chars_to_read, u_int16_t * bytes_read);
u_int32_t ndpi_bytestream_dec_or_hex_to_number(const u_int8_t * str, u_int16_t max_chars_to_read, u_int16_t * bytes_read);
u_int64_t ndpi_bytestream_dec_or_hex_to_number64(const u_int8_t * str, u_int16_t max_chars_to_read, u_int16_t * bytes_read);
u_int32_t ndpi_bytestream_to_ipv4(const u_int8_t * str, u_int16_t max_chars_to_read, u_int16_t * bytes_read);
void ndpi_int_add_connection(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
u_int16_t detected_protocol, ndpi_protocol_type_t protocol_type);
/* function to parse a packet which has line based information into a line based structure
* this function will also set some well known line pointers like:
* - host, user agent, empty line,....
*/
extern void ndpi_parse_packet_line_info(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow);
extern void ndpi_parse_packet_line_info_unix(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow);
extern u_int16_t ndpi_check_for_email_address(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow, u_int16_t counter);
extern void ndpi_int_change_packet_protocol(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
u_int16_t detected_protocol, ndpi_protocol_type_t protocol_type);
extern void ndpi_int_change_protocol(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
u_int16_t detected_protocol,
ndpi_protocol_type_t protocol_type);
extern void ndpi_set_proto_defaults(struct ndpi_detection_module_struct *ndpi_mod,
u_int16_t protoId, char *protoName,
ndpi_port_range *tcpDefPorts, ndpi_port_range *udpDefPorts);
extern void ndpi_int_reset_packet_protocol(struct ndpi_packet_struct *packet);
extern void ndpi_int_reset_protocol(struct ndpi_flow_struct *flow);
extern int ndpi_packet_src_ip_eql(const struct ndpi_packet_struct *packet, const ndpi_ip_addr_t * ip);
extern int ndpi_packet_dst_ip_eql(const struct ndpi_packet_struct *packet, const ndpi_ip_addr_t * ip);
extern void ndpi_packet_src_ip_get(const struct ndpi_packet_struct *packet, ndpi_ip_addr_t * ip);
extern void ndpi_packet_dst_ip_get(const struct ndpi_packet_struct *packet, ndpi_ip_addr_t * ip);
extern char *ndpi_get_ip_string(struct ndpi_detection_module_struct *ndpi_struct, const ndpi_ip_addr_t * ip);
extern char *ndpi_get_packet_src_ip_string(struct ndpi_detection_module_struct *ndpi_struct,
const struct ndpi_packet_struct *packet);
extern char* ndpi_get_proto_by_id(struct ndpi_detection_module_struct *ndpi_mod, u_int id);
extern u_int8_t ndpi_net_match(u_int32_t ip_to_check,
u_int32_t net,
u_int32_t num_bits);
extern u_int8_t ndpi_ips_match(u_int32_t src, u_int32_t dst,
u_int32_t net, u_int32_t num_bits);
extern char* ndpi_strnstr(const char *s, const char *find, size_t slen);
#ifdef NDPI_ENABLE_DEBUG_MESSAGES
void ndpi_debug_get_last_log_function_line(struct ndpi_detection_module_struct *ndpi_struct,
const char **file, const char **func, u_int32_t * line);
#endif
#include "ndpi_api.h"
#endif /* __NDPI_MAIN_INCLUDE_FILE__ */
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