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authorRahat Mahmood <rahat@google.com>2019-08-15 14:04:44 -0700
committergVisor bot <gvisor-bot@google.com>2019-08-15 14:05:59 -0700
commit6cfc76798b586a6c33c1ec311cb5f0d82b90ca72 (patch)
treef8d3d1b9b46a3fa69fcaa97302ecca176550b6d1
parentfe74bba2bd8b3bed84f456313275500fca90f441 (diff)
Document source and versioning of the TCPInfo struct.
PiperOrigin-RevId: 263637194
-rw-r--r--pkg/abi/linux/socket.go5
1 files changed, 4 insertions, 1 deletions
diff --git a/pkg/abi/linux/socket.go b/pkg/abi/linux/socket.go
index 6857a20a3..d5b731390 100644
--- a/pkg/abi/linux/socket.go
+++ b/pkg/abi/linux/socket.go
@@ -292,7 +292,10 @@ const SizeOfLinger = 8
// TCPInfo is a collection of TCP statistics.
//
-// From uapi/linux/tcp.h.
+// From uapi/linux/tcp.h. Newer versions of Linux continue to add new fields to
+// the end of this struct or within existing unusued space, so its size grows
+// over time. The current iteration is based on linux v4.17. New versions are
+// always backwards compatible.
type TCPInfo struct {
State uint8
CaState uint8