netlink/tcp.go
Sven Rebhan 06219cde3e Implement UDP socket diagnostics
Signed-off-by: Sven Rebhan <srebhan@influxdata.com>
2024-01-26 09:08:48 -08:00

93 lines
3.0 KiB
Go

package netlink
// TCP States
const (
TCP_ESTABLISHED = iota + 0x01
TCP_SYN_SENT
TCP_SYN_RECV
TCP_FIN_WAIT1
TCP_FIN_WAIT2
TCP_TIME_WAIT
TCP_CLOSE
TCP_CLOSE_WAIT
TCP_LAST_ACK
TCP_LISTEN
TCP_CLOSING
TCP_NEW_SYN_REC
TCP_MAX_STATES
)
type TCPInfo struct {
State uint8
Ca_state uint8
Retransmits uint8
Probes uint8
Backoff uint8
Options uint8
Snd_wscale uint8 // no uint4
Rcv_wscale uint8
Delivery_rate_app_limited uint8
Fastopen_client_fail uint8
Rto uint32
Ato uint32
Snd_mss uint32
Rcv_mss uint32
Unacked uint32
Sacked uint32
Lost uint32
Retrans uint32
Fackets uint32
Last_data_sent uint32
Last_ack_sent uint32
Last_data_recv uint32
Last_ack_recv uint32
Pmtu uint32
Rcv_ssthresh uint32
Rtt uint32
Rttvar uint32
Snd_ssthresh uint32
Snd_cwnd uint32
Advmss uint32
Reordering uint32
Rcv_rtt uint32
Rcv_space uint32
Total_retrans uint32
Pacing_rate uint64
Max_pacing_rate uint64
Bytes_acked uint64 /* RFC4898 tcpEStatsAppHCThruOctetsAcked */
Bytes_received uint64 /* RFC4898 tcpEStatsAppHCThruOctetsReceived */
Segs_out uint32 /* RFC4898 tcpEStatsPerfSegsOut */
Segs_in uint32 /* RFC4898 tcpEStatsPerfSegsIn */
Notsent_bytes uint32
Min_rtt uint32
Data_segs_in uint32 /* RFC4898 tcpEStatsDataSegsIn */
Data_segs_out uint32 /* RFC4898 tcpEStatsDataSegsOut */
Delivery_rate uint64
Busy_time uint64 /* Time (usec) busy sending data */
Rwnd_limited uint64 /* Time (usec) limited by receive window */
Sndbuf_limited uint64 /* Time (usec) limited by send buffer */
Delivered uint32
Delivered_ce uint32
Bytes_sent uint64 /* RFC4898 tcpEStatsPerfHCDataOctetsOut */
Bytes_retrans uint64 /* RFC4898 tcpEStatsPerfOctetsRetrans */
Dsack_dups uint32 /* RFC4898 tcpEStatsStackDSACKDups */
Reord_seen uint32 /* reordering events seen */
Rcv_ooopack uint32 /* Out-of-order packets received */
Snd_wnd uint32 /* peer's advertised receive window after * scaling (bytes) */
}
type TCPBBRInfo struct {
BBRBW uint64
BBRMinRTT uint32
BBRPacingGain uint32
BBRCwndGain uint32
}
// According to https://man7.org/linux/man-pages/man7/sock_diag.7.html
type MemInfo struct {
RMem uint32
WMem uint32
FMem uint32
TMem uint32
}