1 /*
2  * Copyright (c) 2001 - 2003
3  * NetGroup, Politecnico di Torino (Italy)
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  * notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  * notice, this list of conditions and the following disclaimer in the
14  * documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the Politecnico di Torino nor the names of its
16  * contributors may be used to endorse or promote products derived from
17  * this software without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30  *
31  */
32 
33 #ifndef __tcp_session
34 #define __tcp_session
35 
36 #ifdef WIN32
37 #include "tme.h"
38 #endif
39 
40 #ifdef __FreeBSD__
41 
42 #ifdef _KERNEL
43 #include <net/tme/tme.h>
44 #else
45 #include <tme/tme.h>
46 #endif
47 
48 #endif
49 
50 #define UNKNOWN			0
51 #define SYN_RCV			1
52 #define SYN_ACK_RCV		2
53 #define ESTABLISHED		3
54 #define CLOSED_RST		4
55 #define FIN_CLN_RCV		5
56 #define FIN_SRV_RCV		6
57 #define CLOSED_FIN		7
58 #define ERROR_TCP		8
59 #define FIRST_IS_CLN	0
60 #define	FIRST_IS_SRV	0xffffffff
61 #define FIN_CLN			1
62 #define	FIN_SRV			2
63 
64 #define MAX_WINDOW 65536
65 
66 typedef struct __tcp_data
67 {
68 	struct timeval timestamp_block; /*DO NOT MOVE THIS VALUE*/
69 	struct timeval syn_timestamp;
70 	struct timeval last_timestamp;
71 	struct timeval syn_ack_timestamp;
72 	uint32 direction;
73 	uint32 seq_n_0_srv;
74 	uint32 seq_n_0_cln;
75 	uint32 ack_srv; /* acknowledge of (data sent by server) */
76 	uint32 ack_cln; /* acknowledge of (data sent by client) */
77 	uint32 status;
78 	uint32 pkts_cln_to_srv;
79 	uint32 pkts_srv_to_cln;
80 	uint32 bytes_srv_to_cln;
81 	uint32 bytes_cln_to_srv;
82 	uint32 close_state;
83 }
84 	 tcp_data;
85 
86 #define FIN		1
87 #define	SYN		2
88 #define RST		4
89 #define PSH		8
90 #define ACK		16
91 #define URG		32
92 
93 #define	TCP_SESSION						0x00000800
94 uint32 tcp_session(uint8 *block, uint32 pkt_size, TME_DATA *data, MEM_TYPE *mem_ex, uint8 *mem_data);
95 
96 #endif
97