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unix: define extended TCPInfo on Linux

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On Linux platforms, the kernel can fill out an extended version of
the tcp_info struct. Allow users of the sys package to have access to
that information.

Change-Id: Ib42ad572dd56c774c6d9e8b17fe3bdd8126147bb
Reviewed-on: https://go-review.googlesource.com/c/sys/+/471275
Run-TryBot: Matt Layher <mdlayher@gmail.com>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Matt Layher <mdlayher@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
This commit is contained in:
Will Hawkins
2023-02-28 17:07:46 +00:00
committed by Gopher Robot
parent 10499f4574
commit 6f250766ac
2 changed files with 58 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files
unix/linux/types.go
+2 -1
View File
@@ -11,6 +11,7 @@ Input to cgo -godefs. See README.md
// +godefs map struct_in_addr [4]byte /* in_addr */ // +godefs map struct_in_addr [4]byte /* in_addr */
// +godefs map struct_in6_addr [16]byte /* in6_addr */ // +godefs map struct_in6_addr [16]byte /* in6_addr */
// +godefs map struct___kernel_sockaddr_storage SockaddrStorage
package unix package unix
@@ -31,7 +32,7 @@ package unix
#include <utime.h> #include <utime.h>
#include <netinet/in.h> #include <netinet/in.h>
#include <netinet/tcp.h> #include <linux/tcp.h>
#include <sys/epoll.h> #include <sys/epoll.h>
#include <sys/inotify.h> #include <sys/inotify.h>
unix/ztypes_linux.go
+56 -32
View File
@@ -456,36 +456,60 @@ type Ucred struct {
} }
type TCPInfo struct { type TCPInfo struct {
State uint8 State uint8
Ca_state uint8 Ca_state uint8
Retransmits uint8 Retransmits uint8
Probes uint8 Probes uint8
Backoff uint8 Backoff uint8
Options uint8 Options uint8
Rto uint32 Rto uint32
Ato uint32 Ato uint32
Snd_mss uint32 Snd_mss uint32
Rcv_mss uint32 Rcv_mss uint32
Unacked uint32 Unacked uint32
Sacked uint32 Sacked uint32
Lost uint32 Lost uint32
Retrans uint32 Retrans uint32
Fackets uint32 Fackets uint32
Last_data_sent uint32 Last_data_sent uint32
Last_ack_sent uint32 Last_ack_sent uint32
Last_data_recv uint32 Last_data_recv uint32
Last_ack_recv uint32 Last_ack_recv uint32
Pmtu uint32 Pmtu uint32
Rcv_ssthresh uint32 Rcv_ssthresh uint32
Rtt uint32 Rtt uint32
Rttvar uint32 Rttvar uint32
Snd_ssthresh uint32 Snd_ssthresh uint32
Snd_cwnd uint32 Snd_cwnd uint32
Advmss uint32 Advmss uint32
Reordering uint32 Reordering uint32
Rcv_rtt uint32 Rcv_rtt uint32
Rcv_space uint32 Rcv_space uint32
Total_retrans uint32 Total_retrans uint32
Pacing_rate uint64
Max_pacing_rate uint64
Bytes_acked uint64
Bytes_received uint64
Segs_out uint32
Segs_in uint32
Notsent_bytes uint32
Min_rtt uint32
Data_segs_in uint32
Data_segs_out uint32
Delivery_rate uint64
Busy_time uint64
Rwnd_limited uint64
Sndbuf_limited uint64
Delivered uint32
Delivered_ce uint32
Bytes_sent uint64
Bytes_retrans uint64
Dsack_dups uint32
Reord_seen uint32
Rcv_ooopack uint32
Snd_wnd uint32
Rcv_wnd uint32
Rehash uint32
} }
type CanFilter struct { type CanFilter struct {
@@ -528,7 +552,7 @@ const (
SizeofIPv6MTUInfo = 0x20 SizeofIPv6MTUInfo = 0x20
SizeofICMPv6Filter = 0x20 SizeofICMPv6Filter = 0x20
SizeofUcred = 0xc SizeofUcred = 0xc
SizeofTCPInfo = 0x68 SizeofTCPInfo = 0xf0
SizeofCanFilter = 0x8 SizeofCanFilter = 0x8
SizeofTCPRepairOpt = 0x8 SizeofTCPRepairOpt = 0x8
) )
@@ -1239,7 +1263,7 @@ type TCPMD5Sig struct {
Flags uint8 Flags uint8
Prefixlen uint8 Prefixlen uint8
Keylen uint16 Keylen uint16
_ uint32 Ifindex int32
Key [80]uint8 Key [80]uint8
} }