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1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2009 Benjamin Poirier <benjamin.poirier@polymtl.ca> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License Version 2 as | |
6 | * published by the Free Software Foundation; | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
16 | * MA 02111-1307, USA. | |
17 | */ | |
18 | ||
19 | #ifndef DATA_STRUCTURES_H | |
20 | #define DATA_STRUCTURES_H | |
21 | ||
22 | #include <glib.h> | |
23 | #include <stdbool.h> | |
24 | #include <stdint.h> | |
25 | ||
26 | #include <ltt/ltt.h> | |
27 | ||
28 | // Stage 1 to 2: These structures are passed from processing to matching modules | |
29 | // TCP events | |
30 | typedef struct | |
31 | { | |
32 | uint32_t saddr, daddr; | |
33 | uint16_t source, dest; | |
34 | } ConnectionKey; | |
35 | ||
36 | typedef struct | |
37 | { | |
38 | ConnectionKey connectionKey; | |
39 | uint8_t ihl; | |
40 | uint16_t tot_len; | |
41 | uint32_t seq, ack_seq; | |
42 | uint8_t doff; | |
43 | uint8_t ack, rst, syn, fin; | |
44 | } SegmentKey; | |
45 | ||
46 | enum Direction | |
47 | { | |
48 | OUT, | |
49 | IN, | |
50 | }; | |
51 | ||
52 | typedef struct | |
53 | { | |
54 | enum Direction direction; | |
55 | SegmentKey* segmentKey; | |
56 | } TCPEvent; | |
57 | ||
58 | // UDP events | |
59 | typedef struct | |
60 | { | |
61 | uint32_t saddr, daddr; | |
62 | uint8_t dataKey[8]; | |
63 | } DatagramKey; | |
64 | ||
65 | typedef struct | |
66 | { | |
67 | enum Direction direction; | |
68 | DatagramKey* datagramKey; | |
69 | bool unicast; | |
70 | } UDPEvent; | |
71 | ||
72 | typedef struct _Event | |
73 | { | |
74 | unsigned long traceNum; | |
75 | uint64_t time; | |
76 | ||
77 | // specific event structures and functions could be in separate files and | |
78 | // type could be an int | |
79 | enum {TCP, UDP} type; | |
80 | // event could be a void*, this union is to avoid having to cast | |
81 | union { | |
82 | TCPEvent* tcpEvent; | |
83 | UDPEvent* udpEvent; | |
84 | } event; | |
85 | ||
86 | void (*destroy)(struct _Event* const event); | |
87 | } Event; | |
88 | ||
89 | // Stage 2 to 3: These structures are passed from matching to analysis modules | |
90 | typedef struct _Message | |
91 | { | |
92 | Event* inE, * outE; | |
93 | ||
94 | void (*print)(const struct _Message* const message); | |
95 | } Message; | |
96 | ||
97 | typedef struct | |
98 | { | |
99 | Message* message; | |
100 | GQueue* acks; | |
101 | } Exchange; | |
102 | ||
103 | typedef struct | |
104 | { | |
105 | GQueue* events; | |
106 | } Broadcast; | |
107 | ||
108 | // One set of factors for each trace, this is the result of synchronization | |
109 | typedef struct | |
110 | { | |
111 | double drift, offset; | |
112 | } Factors; | |
113 | ||
114 | ||
115 | // ConnectionKey-related functions | |
116 | guint ghfConnectionKeyHash(gconstpointer key); | |
117 | ||
118 | gboolean gefConnectionKeyEqual(gconstpointer a, gconstpointer b); | |
119 | bool connectionKeyEqual(const ConnectionKey* const a, const ConnectionKey* | |
120 | const b); | |
121 | ||
122 | void gdnConnectionKeyDestroy(gpointer data); | |
123 | ||
124 | // SegmentKey-related functions | |
125 | guint ghfSegmentKeyHash(gconstpointer key); | |
126 | gboolean gefSegmentKeyEqual(gconstpointer a, gconstpointer b); | |
127 | ||
128 | // Event-related functions | |
129 | void gdnDestroyEvent(gpointer data); | |
130 | void destroyEvent(Event* const event); | |
131 | void destroyTCPEvent(Event* const event); | |
132 | void destroyUDPEvent(Event* const event); | |
133 | ||
134 | // Message-related functions | |
135 | void printTCPSegment(const Message* const segment); | |
136 | void convertIP(char* const str, const uint32_t addr); | |
137 | ||
138 | gint gcfTCPSegmentAckCompare(gconstpointer a, gconstpointer b); | |
139 | bool isAcking(const Message* const ackSegment, const Message* const ackedSegment); | |
140 | ||
141 | void gdnTCPSegmentListDestroy(gpointer data); | |
142 | void gfTCPSegmentDestroy(gpointer data, gpointer user_data); | |
143 | void destroyTCPSegment(Message* const segment); | |
144 | ||
145 | // Exchange-related functions | |
146 | void destroyTCPExchange(Exchange* const exchange); | |
147 | #endif |