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//go:build darwin || dragonfly || freebsd || linux || netbsd || openbsd
// +build darwin dragonfly freebsd linux netbsd openbsd
package utilities
import (
"fmt"
"net"
"golang.org/x/sys/unix"
)
func GetTCPInfo(connection net.Conn) (*unix.TCPInfo, error) {
tcpConn, ok := connection.(*net.TCPConn)
if !ok {
return nil, fmt.Errorf("connection is not a net.TCPConn")
}
rawConn, err := tcpConn.SyscallConn()
if err != nil {
return nil, err
}
var info *unix.TCPInfo = nil
rawConn.Control(func(fd uintptr) {
info, err = unix.GetsockoptTCPInfo(int(fd), unix.SOL_TCP, unix.TCP_INFO)
})
return info, err
}
func PrintTCPInfo(info *unix.TCPInfo) {
fmt.Printf("TCPInfo: \n")
fmt.Printf(" State: %v\n", info.State)
fmt.Printf(" Ca_state: %v\n", info.Ca_state)
fmt.Printf(" Retransmits: %v\n", info.Retransmits)
fmt.Printf(" Probes: %v\n", info.Probes)
fmt.Printf(" Backoff: %v\n", info.Backoff)
fmt.Printf(" Options: %v\n", info.Options)
fmt.Printf(" Rto: %v\n", info.Rto)
fmt.Printf(" Ato: %v\n", info.Ato)
fmt.Printf(" Snd_mss: %v\n", info.Snd_mss)
fmt.Printf(" Rcv_mss: %v\n", info.Rcv_mss)
fmt.Printf(" Unacked: %v\n", info.Unacked)
fmt.Printf(" Sacked: %v\n", info.Sacked)
fmt.Printf(" Lost: %v\n", info.Lost)
fmt.Printf(" Retrans: %v\n", info.Retrans)
fmt.Printf(" Fackets: %v\n", info.Fackets)
fmt.Printf(" Last_data_sent: %v\n", info.Last_data_sent)
fmt.Printf(" Last_ack_sent: %v\n", info.Last_ack_sent)
fmt.Printf(" Last_data_recv: %v\n", info.Last_data_recv)
fmt.Printf(" Last_ack_recv: %v\n", info.Last_ack_recv)
fmt.Printf(" Pmtu: %v\n", info.Pmtu)
fmt.Printf(" Rcv_ssthresh: %v\n", info.Rcv_ssthresh)
fmt.Printf(" Rtt: %v\n", info.Rtt)
fmt.Printf(" Rttvar: %v\n", info.Rttvar)
fmt.Printf(" Snd_ssthresh: %v\n", info.Snd_ssthresh)
fmt.Printf(" Snd_cwnd: %v\n", info.Snd_cwnd)
fmt.Printf(" Advmss: %v\n", info.Advmss)
fmt.Printf(" Reordering: %v\n", info.Reordering)
fmt.Printf(" Rcv_rtt: %v\n", info.Rcv_rtt)
fmt.Printf(" Rcv_space: %v\n", info.Rcv_space)
fmt.Printf(" Total_retrans: %v\n", info.Total_retrans)
}
|
