From 1c2ecbb1a03ffaa3bcdb2ee69c879da5e7076fa5 Mon Sep 17 00:00:00 2001
From: Dean Deng <deandeng@google.com>
Date: Mon, 27 Apr 2020 16:00:39 -0700
Subject: Import host sockets.

The FileDescription implementation for hostfs sockets uses the standard Unix
socket implementation (unix.SocketVFS2), but is also tied to a hostfs dentry.

Updates #1672, #1476

PiperOrigin-RevId: 308716426
---
 pkg/sentry/fs/host/socket.go        | 4 ++++
 pkg/sentry/fs/host/socket_iovec.go  | 4 ++++
 pkg/sentry/fs/host/socket_unsafe.go | 4 ++++
 3 files changed, 12 insertions(+)

(limited to 'pkg/sentry/fs/host')

diff --git a/pkg/sentry/fs/host/socket.go b/pkg/sentry/fs/host/socket.go
index 06fc2d80a..b6e94583e 100644
--- a/pkg/sentry/fs/host/socket.go
+++ b/pkg/sentry/fs/host/socket.go
@@ -37,6 +37,8 @@ import (
 	"gvisor.dev/gvisor/pkg/waiter"
 )
 
+// LINT.IfChange
+
 // maxSendBufferSize is the maximum host send buffer size allowed for endpoint.
 //
 // N.B. 8MB is the default maximum on Linux (2 * sysctl_wmem_max).
@@ -388,3 +390,5 @@ func (c *ConnectedEndpoint) Release() {
 
 // CloseUnread implements transport.ConnectedEndpoint.CloseUnread.
 func (c *ConnectedEndpoint) CloseUnread() {}
+
+// LINT.ThenChange(../../fsimpl/host/socket.go)
diff --git a/pkg/sentry/fs/host/socket_iovec.go b/pkg/sentry/fs/host/socket_iovec.go
index af6955675..5c18dbd5e 100644
--- a/pkg/sentry/fs/host/socket_iovec.go
+++ b/pkg/sentry/fs/host/socket_iovec.go
@@ -21,6 +21,8 @@ import (
 	"gvisor.dev/gvisor/pkg/syserror"
 )
 
+// LINT.IfChange
+
 // maxIovs is the maximum number of iovecs to pass to the host.
 var maxIovs = linux.UIO_MAXIOV
 
@@ -111,3 +113,5 @@ func buildIovec(bufs [][]byte, maxlen int64, truncate bool) (length int64, iovec
 
 	return total, iovecs, nil, err
 }
+
+// LINT.ThenChange(../../fsimpl/host/socket_iovec.go)
diff --git a/pkg/sentry/fs/host/socket_unsafe.go b/pkg/sentry/fs/host/socket_unsafe.go
index f3bbed7ea..5d4f312cf 100644
--- a/pkg/sentry/fs/host/socket_unsafe.go
+++ b/pkg/sentry/fs/host/socket_unsafe.go
@@ -19,6 +19,8 @@ import (
 	"unsafe"
 )
 
+// LINT.IfChange
+
 // fdReadVec receives from fd to bufs.
 //
 // If the total length of bufs is > maxlen, fdReadVec will do a partial read
@@ -99,3 +101,5 @@ func fdWriteVec(fd int, bufs [][]byte, maxlen int64, truncate bool) (int64, int6
 
 	return int64(n), length, err
 }
+
+// LINT.ThenChange(../../fsimpl/host/socket_unsafe.go)
-- 
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