ecnprobe/session.h

   1 /*
   2  Copyright (c) 2000
   3  International Computer Science Institute
   4  All rights reserved.
   5
   6  This file may contain software code originally developed for the
   7  Sting project. The Sting software carries the following copyright:
   8
   9  Copyright (c) 1998, 1999
  10  Stefan Savage and the University of Washington.
  11  All rights reserved.
  12
  13  Redistribution and use in source and binary forms, with or without
  14  modification, are permitted provided that the following conditions
  15  are met:
  16  1. Redistributions of source code must retain the above copyright
  17     notice, this list of conditions and the following disclaimer.
  18  2. Redistributions in binary form must reproduce the above copyright
  19     notice, this list of conditions and the following disclaimer in the
  20     documentation and/or other materials provided with the distribution.
  21  3. All advertising materials mentioning features or use of this software
  22     must display the following acknowledgment:
  23       This product includes software developed by ACIRI, the AT&T
  24       Center for Internet Research at ICSI (the International Computer
  25       Science Institute). This product may also include software developed
  26       by Stefan Savage at the University of Washington.
  27  4. The names of ACIRI, ICSI, Stefan Savage and University of Washington
  28     may not be used to endorse or promote products derived from this software
  29     without specific prior written permission.
  30
  31  THIS SOFTWARE IS PROVIDED BY ICSI AND CONTRIBUTORS ``AS IS'' AND
  32  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  33  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  34  ARE DISCLAIMED.  IN NO EVENT SHALL ICSI OR CONTRIBUTORS BE LIABLE
  35  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  36  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  37  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  38  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  39  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  40  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  41  SUCH DAMAGE.
  42 */
  43
  44 #define MAXREQUESTLEN 1000
  45
  46 #define SESSION_DEBUG_LOW       1
  47 #define SESSION_DEBUG_MEDIUM    2
  48 #define SESSION_DEBUG_HIGH      3
  49
  50 struct TcpSession {
  51
  52   /* target name, as specified by the user */
  53   char targetName[MAXHOSTNAMELEN];
  54
  55   /* DNS name of hosts */
  56   char targetHostName[MAXHOSTNAMELEN];
  57   char sourceHostName[MAXHOSTNAMELEN];
  58
  59   /* raw socket we use to send on */
  60   int socket;
  61
  62   /* connection endpoint identifiers */
  63   u_int32_t src;
  64   u_int16_t sport;
  65   u_int32_t dst;
  66   u_int16_t dport;
  67
  68   /* sender info, from RFC 793 */
  69   u_int32_t iss;     // initial send sequence
  70   u_int32_t snd_una; // sequence numbers of unacknowledged data
  71   u_int32_t snd_nxt; // sequence number to be sent next
  72   u_int16_t snd_wnd;
  73   u_int16_t sndmss;
  74
  75   /* Receiver info */
  76   u_int32_t irs;
  77   u_int32_t rcv_wnd;
  78   u_int32_t rcv_nxt;
  79   u_int32_t maxseqseen;
  80   u_int16_t mss;
  81
  82   /* timing */
  83   double rtt;
  84   u_int8_t ttl;
  85   double start_time;
  86
  87   /* data buffer */
  88   u_int8_t *dataRcvd ;
  89
  90   /* basic results */
  91   int totSent;
  92   int totRcvd;
  93   int totSeenSent;
  94   int totDataPktsRcvd;
  95   int totOutofSeq;
  96   int hsz;
  97
  98   /* basic control*/
  99   int epochTime;
 100   int debug;
 101   int verbose;
 102   int initSession;
 103   int initCapture;
 104   int initFirewall;
 105   int firewall_rule_number;
 106   char *filename;
 107   int maxpkts;
 108
 109   /* New loss-rate parameters */
 110   float loss_rate;
 111   float prop_delay;
 112
 113   /* results are suspect for various reasons */
 114   int rtt_unreliable;
 115   int ignore_result;
 116
 117   /* Drops and reordering startistics */
 118   int num_reordered;
 119   int num_unwanted_drops;
 120   int num_rtos;
 121   int num_reord_ret;
 122   int num_dup_transmissions;
 123   int num_dup_acks;
 124   int num_pkts_0_dup_acks;
 125   int num_pkts_1_dup_acks;
 126   int num_pkts_2_dup_acks;
 127   int num_pkts_3_dup_acks;
 128   int num_pkts_4_or_more_dup_acks;
 129   int num_dupack_ret;
 130
 131   /* For PMTUD test */
 132   int mtu;
 133
 134   /* For ByteCounting test */
 135   int bytecounting_type;
 136   int ack_bytes;  /* How many bytes covered per ACK */
 137   int ack_rate;   /* ACK [every | every other | every third |...] packet */
 138
 139   /* For WindowScale Option test */
 140   u_int8_t receiving_shift_count;
 141   u_int8_t sending_shift_count;
 142
 143   /* For MidBoxTTL test */
 144   int curr_ttl;
 145
 146   int dont_send_reset;
 147 };
 148
 149 //void SendSessionPacket(struct IPPacket *packet,
 150 void SendSessionPacket(struct IPPacket *packet,
 151                        u_int16_t ip_len, /* Total size of IP datagram */
 152                        u_int8_t tcp_flags,
 153                        u_int16_t ip_optlen, /* IP options len - New */
 154                        u_int16_t optlen,    /* TCP options len */
 155                        u_int8_t iptos);
 156
 157 void SendICMPReply(struct IPPacket *p);
 158
 159 void SendPkt(struct IPPacket *p, u_int16_t ip_len, int ip_optlen, int tcp_optlen);
 160
 161 void SendICMPPkt(struct ICMPUnreachableErrorPacket *p, u_int16_t ip_len);
 162
 163 void StorePacket (struct IPPacket *p);
 164
 165 int EstablishSession(u_int32_t sourceAddress, \
 166                      u_int16_t sourcePort, \
 167                      u_int32_t targetAddress,
 168                      u_int16_t targetPort, \
 169                      int ip_optlen,\
 170                      char *ip_opt,\
 171                      int mss,
 172                      int optlen,
 173                      char *opt, \
 174                      int maxwin,
 175                      int maxpkts,
 176                      u_int8_t iptos,
 177                      u_int8_t tcp_flags);
 178
 179 void rcvData (void (*ackData)(struct IPPacket *p));
 180
 181 void SendRequest(char *filename, void (*ackData)(struct IPPacket *p));
 182
 183 int  PrepareRequest(char *data, char *filename) ;