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33 lines
1.2 KiB
C
33 lines
1.2 KiB
C
#pragma once
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#include <time.h>
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#define CTRACK_T_SYN 60
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#define CTRACK_T_FIN 60
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#define CTRACK_T_EST 300
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#define CTRACK_T_UDP 60
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// SYN - SYN or SYN/ACK received
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// ESTABLISHED - any except SYN or SYN/ACK received
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// FIN - FIN or RST received
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typedef enum {SYN=0, ESTABLISHED, FIN} t_connstate;
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typedef struct
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{
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time_t t_last, t_start;
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uint64_t pcounter_orig, pcounter_reply; // packet counter
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uint64_t pdcounter_orig, pdcounter_reply; // data packet counter (with payload)
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uint64_t pbcounter_orig, pbcounter_reply; // transferred byte counter. includes retransmissions. it's not the same as relative seq.
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uint32_t pos_orig, pos_reply; // TCP: seq_last+payload, ack_last+payload UDP: sum of all seen payload lenghts including current
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uint32_t seq_last, ack_last; // TCP: last seen seq and ack UDP: sum of all seen payload lenghts NOT including current
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// tcp only state, not used in udp
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t_connstate state;
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uint32_t seq0, ack0; // starting seq and ack
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uint16_t winsize_orig, winsize_reply; // last seen window size
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uint8_t scale_orig, scale_reply; // last seen window scale factor. SCALE_NONE if none
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uint32_t winsize_orig_calc, winsize_reply_calc; // calculated window size
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uint16_t mss_orig, mss_reply;
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} t_ctrack_position;
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