tcp.h¶

TCP header and helper functions.

TCP_HDR_OFFSET_MIN¶

TCP offset value boundries.

(0x05)

TCP_HDR_OFFSET_MAX¶

(0x0F)

TCP_OPTION_KIND_EOL¶

TCP Option “Kind”-field defines.

(0x00)

“End of List”-Option

TCP_OPTION_KIND_NOP¶

“No Operatrion”-Option

(0x01)

TCP_OPTION_KIND_MSS¶

“Maximum Segment Size”-Option

(0x02)

TCP_OPTION_LENGTH_MSS¶

TCP option “length”-field values.

(0x04)

MSS Option Size always 4

void tcp_hdr_print(tcp_hdr_t * hdr)¶

Print the given TCP header to STDOUT.

Parameters

hdr:	TCP header to print

struct tcp_hdr_t¶

TCP header definition.

byteorder.h::network_uint16_t src_port¶: Source port, in network byte order.

byteorder.h::network_uint16_t dst_port¶: Destination port, in network byte order.

byteorder.h::network_uint32_t seq_num¶: Dequence number, in network byte order.

byteorder.h::network_uint32_t ack_num¶: Acknowledgement number, in network byte order.

byteorder.h::network_uint16_t off_ctl¶: Data Offset and control Bits in network byte order.

byteorder.h::network_uint16_t checksum¶: Checksum, in network byte order.

byteorder.h::network_uint16_t urgent_ptr¶: Urgent pointer, in network byte order.

struct tcp_hdr_opt_t¶

TCP option field helper structure.