38 lines
972 B
C
38 lines
972 B
C
#ifndef _TCP_H
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#define _TCP_H
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#define TCP_INITIAL_TIMEOUT (3*TICKS_PER_SEC)
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#define TCP_MAX_TIMEOUT (60*TICKS_PER_SEC)
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#define TCP_MIN_TIMEOUT (TICKS_PER_SEC)
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#define TCP_MAX_RETRY 10
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#define TCP_MAX_HEADER ((int)sizeof(struct iphdr)+64)
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#define TCP_MIN_WINDOW (1500-TCP_MAX_HEADER)
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#define TCP_MAX_WINDOW (65535-TCP_MAX_HEADER)
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#define FIN 1
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#define SYN 2
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#define RST 4
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#define PSH 8
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#define ACK 16
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#define URG 32
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struct tcphdr {
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uint16_t src;
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uint16_t dst;
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int32_t seq;
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int32_t ack;
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uint16_t ctrl;
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uint16_t window;
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uint16_t chksum;
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uint16_t urgent;
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};
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extern int tcp_transaction ( unsigned long destip, unsigned int destsock,
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void *ptr,
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int (*send)(int len, void *buf, void *ptr),
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int (*recv)(int len, const void *buf, void *ptr));
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#endif /* _TCP_H */
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