2 * TCP stream statistics
3 * Originally from tcp_graph.c by Pavel Mores <pvl@uh.cz>
4 * Win32 port: rwh@unifiedtech.com
6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * SPDX-License-Identifier: GPL-2.0-or-later*/
12 #ifndef __TAP_TCP_STREAM_H__
13 #define __TAP_TCP_STREAM_H__
17 #endif /* __cplusplus */
19 typedef enum tcp_graph_type_ {
41 guint32 th_win; /* make it 32 bits so we can handle some scaling */
48 guint8 num_sack_ranges;
49 guint32 sack_left_edge[MAX_TCP_SACK_RANGES];
50 guint32 sack_right_edge[MAX_TCP_SACK_RANGES];
56 /* The stream this graph will show */
62 /* Should this be a map or tree instead? */
63 struct segment *segments;
66 /** Fill in the segment list for a TCP graph
68 * @param cf Capture file to scan
69 * @param tg TCP graph. A valid stream must be set. If either the source or
70 * destination address types are AT_NONE the address and port
71 * information will be filled in using the first packet in the
73 * @param stream_known If FALSE, session information will be filled in using
74 * the currently selected packet. If FALSE, session information will
75 * be matched against tg.
77 void graph_segment_list_get(capture_file *cf, struct tcp_graph *tg, gboolean stream_known );
78 void graph_segment_list_free(struct tcp_graph * );
80 /* for compare_headers() */
81 /* segment went the same direction as the currently selected one */
82 #define COMPARE_CURR_DIR 0
83 #define COMPARE_ANY_DIR 1
85 int compare_headers(address *saddr1, address *daddr1, guint16 sport1, guint16 dport1, const address *saddr2, const address *daddr2, guint16 sport2, guint16 dport2, int dir);
87 int get_num_dsegs(struct tcp_graph * );
88 int get_num_acks(struct tcp_graph *, int * );
90 struct tcpheader *select_tcpip_session(capture_file *, struct segment * );
92 /* This is used by rtt module only */
94 struct rtt_unack *next;
97 unsigned int end_seqno;
100 int rtt_is_retrans(struct rtt_unack * , unsigned int );
101 struct rtt_unack *rtt_get_new_unack(double , unsigned int , unsigned int );
102 void rtt_put_unack_on_list(struct rtt_unack ** , struct rtt_unack * );
103 void rtt_delete_unack_from_list(struct rtt_unack ** , struct rtt_unack * );
104 void rtt_destroy_unack_list(struct rtt_unack ** );
107 tcp_seq_before(guint32 s1, guint32 s2) {
108 return (gint32)(s1 - s2) < 0;
112 tcp_seq_eq_or_after(guint32 s1, guint32 s2) {
113 return !tcp_seq_before(s1, s2);
117 tcp_seq_after(guint32 s1, guint32 s2) {
118 return (gint32)(s1 - s2) > 0;
121 static inline int tcp_seq_before_or_eq(guint32 s1, guint32 s2) {
122 return !tcp_seq_after(s1, s2);
127 #endif /* __cplusplus */
129 #endif /* __TAP_TCP_STREAM_H__ */
137 * indent-tabs-mode: nil
140 * ex: set shiftwidth=4 tabstop=8 expandtab:
141 * :indentSize=4:tabSize=8:noTabs=true: