/* Copyright (c) 2000 International Computer Science Institute All rights reserved. This file may contain software code originally developed for the Sting project. The Sting software carries the following copyright: Copyright (c) 1998, 1999 Stefan Savage and the University of Washington. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. All advertising materials mentioning features or use of this software must display the following acknowledgment: This product includes software developed by ACIRI, the AT&T Center for Internet Research at ICSI (the International Computer Science Institute). This product may also include software developed by Stefan Savage at the University of Washington. 4. The names of ACIRI, ICSI, Stefan Savage and University of Washington may not be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY ICSI AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ICSI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #define MAXREQUESTLEN 1000 #define SESSION_DEBUG_LOW 1 #define SESSION_DEBUG_MEDIUM 2 #define SESSION_DEBUG_HIGH 3 struct TcpSession { /* target name, as specified by the user */ char targetName[MAXHOSTNAMELEN]; /* DNS name of hosts */ char targetHostName[MAXHOSTNAMELEN]; char sourceHostName[MAXHOSTNAMELEN]; /* raw socket we use to send on */ int socket; /* connection endpoint identifiers */ u_int32_t src; u_int16_t sport; u_int32_t dst; u_int16_t dport; /* sender info, from RFC 793 */ u_int32_t iss; // initial send sequence u_int32_t snd_una; // sequence numbers of unacknowledged data u_int32_t snd_nxt; // sequence number to be sent next u_int16_t snd_wnd; u_int16_t sndmss; /* Receiver info */ u_int32_t irs; u_int32_t rcv_wnd; u_int32_t rcv_nxt; u_int32_t maxseqseen; u_int16_t mss; /* timing */ double rtt; u_int8_t ttl; double start_time; /* data buffer */ u_int8_t *dataRcvd ; /* basic results */ int totSent; int totRcvd; int totSeenSent; int totDataPktsRcvd; int totOutofSeq; int hsz; /* basic control*/ int epochTime; int debug; int verbose; int initSession; int initCapture; int initFirewall; int firewall_rule_number; char *filename; int maxpkts; /* New loss-rate parameters */ float loss_rate; float prop_delay; /* results are suspect for various reasons */ int rtt_unreliable; int ignore_result; /* Drops and reordering startistics */ int num_reordered; int num_unwanted_drops; int num_rtos; int num_reord_ret; int num_dup_transmissions; int num_dup_acks; int num_pkts_0_dup_acks; int num_pkts_1_dup_acks; int num_pkts_2_dup_acks; int num_pkts_3_dup_acks; int num_pkts_4_or_more_dup_acks; int num_dupack_ret; /* For PMTUD test */ int mtu; /* For ByteCounting test */ int bytecounting_type; int ack_bytes; /* How many bytes covered per ACK */ int ack_rate; /* ACK [every | every other | every third |...] packet */ /* For WindowScale Option test */ u_int8_t receiving_shift_count; u_int8_t sending_shift_count; /* For MidBoxTTL test */ int curr_ttl; int dont_send_reset; }; //void SendSessionPacket(struct IPPacket *packet, void SendSessionPacket(struct IPPacket *packet, u_int16_t ip_len, /* Total size of IP datagram */ u_int8_t tcp_flags, u_int16_t ip_optlen, /* IP options len - New */ u_int16_t optlen, /* TCP options len */ u_int8_t iptos); void SendICMPReply(struct IPPacket *p); void SendPkt(struct IPPacket *p, u_int16_t ip_len, int ip_optlen, int tcp_optlen); void SendICMPPkt(struct ICMPUnreachableErrorPacket *p, u_int16_t ip_len); void StorePacket (struct IPPacket *p); int EstablishSession(u_int32_t sourceAddress, \ u_int16_t sourcePort, \ u_int32_t targetAddress, u_int16_t targetPort, \ int ip_optlen,\ char *ip_opt,\ int mss, int optlen, char *opt, \ int maxwin, int maxpkts, u_int8_t iptos, u_int8_t tcp_flags); void rcvData (void (*ackData)(struct IPPacket *p)); void SendRequest(char *filename, void (*ackData)(struct IPPacket *p)); int PrepareRequest(char *data, char *filename) ;