aboutsummaryrefslogtreecommitdiff
path: root/vendor/github.com/vishvananda/netlink/tcp_linux.go
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/github.com/vishvananda/netlink/tcp_linux.go')
-rw-r--r--vendor/github.com/vishvananda/netlink/tcp_linux.go393
1 files changed, 393 insertions, 0 deletions
diff --git a/vendor/github.com/vishvananda/netlink/tcp_linux.go b/vendor/github.com/vishvananda/netlink/tcp_linux.go
new file mode 100644
index 000000000..741ea1655
--- /dev/null
+++ b/vendor/github.com/vishvananda/netlink/tcp_linux.go
@@ -0,0 +1,393 @@
+package netlink
+
+import (
+ "bytes"
+ "io"
+)
+
+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) */
+}
+
+func checkDeserErr(err error) error {
+ if err == io.EOF {
+ return nil
+ }
+ return err
+}
+
+func (t *TCPInfo) deserialize(b []byte) error {
+ var err error
+ rb := bytes.NewBuffer(b)
+
+ t.State, err = rb.ReadByte()
+ if err != nil {
+ return checkDeserErr(err)
+ }
+
+ t.Ca_state, err = rb.ReadByte()
+ if err != nil {
+ return checkDeserErr(err)
+ }
+
+ t.Retransmits, err = rb.ReadByte()
+ if err != nil {
+ return checkDeserErr(err)
+ }
+
+ t.Probes, err = rb.ReadByte()
+ if err != nil {
+ return checkDeserErr(err)
+ }
+
+ t.Backoff, err = rb.ReadByte()
+ if err != nil {
+ return checkDeserErr(err)
+ }
+ t.Options, err = rb.ReadByte()
+ if err != nil {
+ return checkDeserErr(err)
+ }
+
+ scales, err := rb.ReadByte()
+ if err != nil {
+ return checkDeserErr(err)
+ }
+ t.Snd_wscale = scales >> 4 // first 4 bits
+ t.Rcv_wscale = scales & 0xf // last 4 bits
+
+ rateLimAndFastOpen, err := rb.ReadByte()
+ if err != nil {
+ return checkDeserErr(err)
+ }
+ t.Delivery_rate_app_limited = rateLimAndFastOpen >> 7 // get first bit
+ t.Fastopen_client_fail = rateLimAndFastOpen >> 5 & 3 // get next two bits
+
+ next := rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Rto = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Ato = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Snd_mss = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Rcv_mss = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Unacked = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Sacked = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Lost = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Retrans = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Fackets = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Last_data_sent = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Last_ack_sent = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Last_data_recv = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Last_ack_recv = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Pmtu = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Rcv_ssthresh = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Rtt = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Rttvar = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Snd_ssthresh = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Snd_cwnd = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Advmss = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Reordering = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Rcv_rtt = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Rcv_space = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Total_retrans = native.Uint32(next)
+
+ next = rb.Next(8)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Pacing_rate = native.Uint64(next)
+
+ next = rb.Next(8)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Max_pacing_rate = native.Uint64(next)
+
+ next = rb.Next(8)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Bytes_acked = native.Uint64(next)
+
+ next = rb.Next(8)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Bytes_received = native.Uint64(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Segs_out = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Segs_in = native.Uint32(next)
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Notsent_bytes = native.Uint32(next)
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Min_rtt = native.Uint32(next)
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Data_segs_in = native.Uint32(next)
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Data_segs_out = native.Uint32(next)
+
+ next = rb.Next(8)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Delivery_rate = native.Uint64(next)
+
+ next = rb.Next(8)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Busy_time = native.Uint64(next)
+
+ next = rb.Next(8)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Rwnd_limited = native.Uint64(next)
+
+ next = rb.Next(8)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Sndbuf_limited = native.Uint64(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Delivered = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Delivered_ce = native.Uint32(next)
+
+ next = rb.Next(8)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Bytes_sent = native.Uint64(next)
+
+ next = rb.Next(8)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Bytes_retrans = native.Uint64(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Dsack_dups = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Reord_seen = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Rcv_ooopack = native.Uint32(next)
+
+ next = rb.Next(4)
+ if len(next) == 0 {
+ return nil
+ }
+ t.Snd_wnd = native.Uint32(next)
+ return nil
+}
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-20 07:48:13 +0000