lttv/lttv/sync/data_structures_tcp.h

   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_TCP_H
  20 #define DATA_STRUCTURES_TCP_H
  21
  22 #include <glib.h>
  23 #include <stdbool.h>
  24 #include <stdint.h>
  25
  26 #include <ltt/ltt.h>
  27
  28 typedef struct
  29 {
  30         uint32_t saddr, daddr;
  31         uint16_t source, dest;
  32 } ConnectionKey;
  33
  34 typedef struct
  35 {
  36         ConnectionKey connectionKey;
  37         uint8_t ihl;
  38         uint16_t tot_len;
  39         uint32_t seq, ack_seq;
  40         uint8_t doff;
  41         uint8_t ack, rst, syn, fin;
  42 } PacketKey;
  43
  44 typedef struct
  45 {
  46         // lttng metainformation
  47         unsigned long traceNum;
  48         LttCycleCount tsc;
  49
  50         // kernel metainformation
  51         void* skb;
  52
  53         // packet header fields
  54         PacketKey* packetKey;
  55 } NetEvent;
  56
  57 typedef struct
  58 {
  59         NetEvent* inE, * outE;
  60         GQueue* acks;
  61 } Packet;
  62
  63 typedef struct
  64 {
  65         double drift, offset;
  66 } Factors;
  67
  68 typedef enum
  69 {
  70         OUT,
  71         IN
  72 } EventType;
  73
  74
  75 void convertIP(char* const str, const uint32_t addr);
  76 void printPacket(const Packet* const packet);
  77
  78 // ConnectionKey-related functions
  79 bool connectionKeyEqual(const ConnectionKey* const a, const ConnectionKey*
  80         const b);
  81
  82 // NetEvent-related functions
  83 void destroyNetEvent(NetEvent* const event);
  84
  85 // Packet-related functions
  86 bool isAcking(const Packet* const ackPacket, const Packet* const ackedPacket);
  87 void destroyPacket(Packet* const packet);
  88
  89 // ConnectionKey-related Glib functions
  90 guint ghfConnectionKeyHash(gconstpointer key);
  91 gboolean gefConnectionKeyEqual(gconstpointer a, gconstpointer b);
  92 void gdnConnectionKeyDestroy(gpointer data);
  93
  94 // PacketKey-related Glib functions
  95 guint ghfPacketKeyHash(gconstpointer key);
  96 gboolean gefPacketKeyEqual(gconstpointer a, gconstpointer b);
  97
  98 // NetEvent-related Glib functions
  99 void gdnDestroyNetEvent(gpointer data);
 100
 101 // Packet-related Glib functions
 102 void gdnPacketListDestroy(gpointer data);
 103 void gfPacketDestroy(gpointer data, gpointer user_data);
 104 gint gcfPacketAckCompare(gconstpointer a, gconstpointer b);
 105
 106 #endif