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
13 #ifndef __TAP_TCP_STREAM_H__
14 #define __TAP_TCP_STREAM_H__
18 #endif /* __cplusplus */
20 typedef enum tcp_graph_type_ {
42 guint32 th_win; /* make it 32 bits so we can handle some scaling */
49 guint8 num_sack_ranges;
50 guint32 sack_left_edge[MAX_TCP_SACK_RANGES];
51 guint32 sack_right_edge[MAX_TCP_SACK_RANGES];
57 /* The stream this graph will show */
63 /* Should this be a map or tree instead? */
64 struct segment *segments;
67 /** Fill in the segment list for a TCP graph
69 * @param cf Capture file to scan
70 * @param tg TCP graph. A valid stream must be set. If either the source or
71 * destination address types are AT_NONE the address and port
72 * information will be filled in using the first packet in the
74 * @param stream_known If FALSE, session information will be filled in using
75 * the currently selected packet. If FALSE, session information will
76 * be matched against tg.
78 void graph_segment_list_get(capture_file *cf, struct tcp_graph *tg, gboolean stream_known );
79 void graph_segment_list_free(struct tcp_graph * );
81 /* for compare_headers() */
82 /* segment went the same direction as the currently selected one */
83 #define COMPARE_CURR_DIR 0
84 #define COMPARE_ANY_DIR 1
86 int compare_headers(address *saddr1, address *daddr1, guint16 sport1, guint16 dport1, const address *saddr2, const address *daddr2, guint16 sport2, guint16 dport2, int dir);
88 int get_num_dsegs(struct tcp_graph * );
89 int get_num_acks(struct tcp_graph *, int * );
91 struct tcpheader *select_tcpip_session(capture_file *, struct segment * );
93 /* This is used by rtt module only */
95 struct rtt_unack *next;
98 unsigned int end_seqno;
101 int rtt_is_retrans(struct rtt_unack * , unsigned int );
102 struct rtt_unack *rtt_get_new_unack(double , unsigned int , unsigned int );
103 void rtt_put_unack_on_list(struct rtt_unack ** , struct rtt_unack * );
104 void rtt_delete_unack_from_list(struct rtt_unack ** , struct rtt_unack * );
105 void rtt_destroy_unack_list(struct rtt_unack ** );
108 tcp_seq_before(guint32 s1, guint32 s2) {
109 return (gint32)(s1 - s2) < 0;
113 tcp_seq_eq_or_after(guint32 s1, guint32 s2) {
114 return !tcp_seq_before(s1, s2);
118 tcp_seq_after(guint32 s1, guint32 s2) {
119 return (gint32)(s1 - s2) > 0;
122 static inline int tcp_seq_before_or_eq(guint32 s1, guint32 s2) {
123 return !tcp_seq_after(s1, s2);
128 #endif /* __cplusplus */
130 #endif /* __TAP_TCP_STREAM_H__ */
138 * indent-tabs-mode: nil
141 * ex: set shiftwidth=4 tabstop=8 expandtab:
142 * :indentSize=4:tabSize=8:noTabs=true: