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#ifndef _NETINET_TCP_H
#define _NETINET_TCP_H
#include <features.h>
#define TCP_NODELAY 1
#define TCP_MAXSEG 2
#define TCP_CORK 3
#define TCP_KEEPIDLE 4
#define TCP_KEEPINTVL 5
#define TCP_KEEPCNT 6
#define TCP_SYNCNT 7
#define TCP_LINGER2 8
#define TCP_DEFER_ACCEPT 9
#define TCP_WINDOW_CLAMP 10
#define TCP_INFO 11
#define TCP_QUICKACK 12
#define TCP_CONGESTION 13
#define TCP_MD5SIG 14
#define TCP_THIN_LINEAR_TIMEOUTS 16
#define TCP_THIN_DUPACK 17
#define TCP_USER_TIMEOUT 18
#define TCP_REPAIR 19
#define TCP_REPAIR_QUEUE 20
#define TCP_QUEUE_SEQ 21
#define TCP_REPAIR_OPTIONS 22
#define TCP_FASTOPEN 23
#define TCP_TIMESTAMP 24
#define TCP_NOTSENT_LOWAT 25
#define TCP_ESTABLISHED 1
#define TCP_SYN_SENT 2
#define TCP_SYN_RECV 3
#define TCP_FIN_WAIT1 4
#define TCP_FIN_WAIT2 5
#define TCP_TIME_WAIT 6
#define TCP_CLOSE 7
#define TCP_CLOSE_WAIT 8
#define TCP_LAST_ACK 9
#define TCP_LISTEN 10
#define TCP_CLOSING 11
#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
#define SOL_TCP 6
#include <sys/types.h>
#include <sys/socket.h>
#endif
#ifdef _GNU_SOURCE
#include <endian.h>
struct tcphdr
{
u_int16_t source;
u_int16_t dest;
u_int32_t seq;
u_int32_t ack_seq;
#if __BYTE_ORDER == __LITTLE_ENDIAN
u_int16_t res1:4;
u_int16_t doff:4;
u_int16_t fin:1;
u_int16_t syn:1;
u_int16_t rst:1;
u_int16_t psh:1;
u_int16_t ack:1;
u_int16_t urg:1;
u_int16_t res2:2;
#else
u_int16_t doff:4;
u_int16_t res1:4;
u_int16_t res2:2;
u_int16_t urg:1;
u_int16_t ack:1;
u_int16_t psh:1;
u_int16_t rst:1;
u_int16_t syn:1;
u_int16_t fin:1;
#endif
u_int16_t window;
u_int16_t check;
u_int16_t urg_ptr;
};
#define TCPI_OPT_TIMESTAMPS 1
#define TCPI_OPT_SACK 2
#define TCPI_OPT_WSCALE 4
#define TCPI_OPT_ECN 8
#define TCP_CA_Open 0
#define TCP_CA_Disorder 1
#define TCP_CA_CWR 2
#define TCP_CA_Recovery 3
#define TCP_CA_Loss 4
struct tcp_info
{
u_int8_t tcpi_state;
u_int8_t tcpi_ca_state;
u_int8_t tcpi_retransmits;
u_int8_t tcpi_probes;
u_int8_t tcpi_backoff;
u_int8_t tcpi_options;
u_int8_t tcpi_snd_wscale : 4, tcpi_rcv_wscale : 4;
u_int32_t tcpi_rto;
u_int32_t tcpi_ato;
u_int32_t tcpi_snd_mss;
u_int32_t tcpi_rcv_mss;
u_int32_t tcpi_unacked;
u_int32_t tcpi_sacked;
u_int32_t tcpi_lost;
u_int32_t tcpi_retrans;
u_int32_t tcpi_fackets;
u_int32_t tcpi_last_data_sent;
u_int32_t tcpi_last_ack_sent;
u_int32_t tcpi_last_data_recv;
u_int32_t tcpi_last_ack_recv;
u_int32_t tcpi_pmtu;
u_int32_t tcpi_rcv_ssthresh;
u_int32_t tcpi_rtt;
u_int32_t tcpi_rttvar;
u_int32_t tcpi_snd_ssthresh;
u_int32_t tcpi_snd_cwnd;
u_int32_t tcpi_advmss;
u_int32_t tcpi_reordering;
u_int32_t tcpi_rcv_rtt;
u_int32_t tcpi_rcv_space;
u_int32_t tcpi_total_retrans;
};
#define TCP_MD5SIG_MAXKEYLEN 80
struct tcp_md5sig
{
struct sockaddr_storage tcpm_addr;
u_int16_t __tcpm_pad1;
u_int16_t tcpm_keylen;
u_int32_t __tcpm_pad2;
u_int8_t tcpm_key[TCP_MD5SIG_MAXKEYLEN];
};
#endif
#endif
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