1 files changed, 128 insertions, 0 deletions
diff --git a/ui/tap-tcp-stream.h b/ui/tap-tcp-stream.h
new file mode 100644
index 00000000..3bc46887
--- /dev/null
+++ b/ui/tap-tcp-stream.h
@@ -0,0 +1,128 @@
+/** @file
+ *
+ * TCP stream statistics
+ * Originally from tcp_graph.c by Pavel Mores <pvl@uh.cz>
+ * Win32 port:  rwh@unifiedtech.com
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef __TAP_TCP_STREAM_H__
+#define __TAP_TCP_STREAM_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+typedef enum tcp_graph_type_ {
+    GRAPH_TSEQ_STEVENS,
+    GRAPH_TSEQ_TCPTRACE,
+    GRAPH_THROUGHPUT,
+    GRAPH_RTT,
+    GRAPH_WSCALE,
+    GRAPH_UNDEFINED
+} tcp_graph_type;
+
+struct segment {
+    struct segment *next;
+    guint32 num;
+    guint32 rel_secs;
+    guint32 rel_usecs;
+    /* Currently unused.
+    time_t abs_secs;
+    guint32 abs_usecs;
+    */
+
+    guint32 th_seq;
+    guint32 th_ack;
+    guint16 th_flags;
+    guint32 th_win;   /* make it 32 bits so we can handle some scaling */
+    guint32 th_seglen;
+    guint16 th_sport;
+    guint16 th_dport;
+    address ip_src;
+    address ip_dst;
+
+    guint8  num_sack_ranges;
+    guint32 sack_left_edge[MAX_TCP_SACK_RANGES];
+    guint32 sack_right_edge[MAX_TCP_SACK_RANGES];
+};
+
+struct tcp_graph {
+    tcp_graph_type   type;
+
+    /* The stream this graph will show */
+    address          src_address;
+    guint16          src_port;
+    address          dst_address;
+    guint16          dst_port;
+    guint32          stream;
+    /* Should this be a map or tree instead? */
+    struct segment  *segments;
+};
+
+/** Fill in the segment list for a TCP graph
+ *
+ * @param cf Capture file to scan
+ * @param tg TCP graph. A valid stream must be set. If either the source or
+ *        destination address types are AT_NONE the address and port
+ *        information will be filled in using the first packet in the
+ *        specified stream.
+ */
+void graph_segment_list_get(capture_file *cf, struct tcp_graph *tg);
+void graph_segment_list_free(struct tcp_graph * );
+
+/* for compare_headers() */
+/* segment went the same direction as the currently selected one */
+#define COMPARE_CURR_DIR    0
+#define COMPARE_ANY_DIR     1
+
+int compare_headers(address *saddr1, address *daddr1, guint16 sport1, guint16 dport1, const address *saddr2, const address *daddr2, guint16 sport2, guint16 dport2, int dir);
+
+int get_num_dsegs(struct tcp_graph * );
+int get_num_acks(struct tcp_graph *, int * );
+
+guint32 select_tcpip_session(capture_file *);
+
+/* This is used by rtt module only */
+struct rtt_unack {
+    struct rtt_unack *next;
+    double        time;
+    unsigned int  seqno;
+    unsigned int  end_seqno;
+};
+
+int rtt_is_retrans(struct rtt_unack * , unsigned int );
+struct rtt_unack *rtt_get_new_unack(double , unsigned int , unsigned int );
+void rtt_put_unack_on_list(struct rtt_unack ** , struct rtt_unack * );
+void rtt_delete_unack_from_list(struct rtt_unack ** , struct rtt_unack * );
+void rtt_destroy_unack_list(struct rtt_unack ** );
+
+static inline int
+tcp_seq_before(guint32 s1, guint32 s2) {
+    return (gint32)(s1 - s2) < 0;
+}
+
+static inline int
+tcp_seq_eq_or_after(guint32 s1, guint32 s2) {
+    return !tcp_seq_before(s1, s2);
+}
+
+static inline int
+tcp_seq_after(guint32 s1, guint32 s2) {
+    return (gint32)(s1 - s2) > 0;
+}
+
+static inline int tcp_seq_before_or_eq(guint32 s1, guint32 s2) {
+    return !tcp_seq_after(s1, s2);
+}
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __TAP_TCP_STREAM_H__ */