From f3d3994a4bf3b723df3b13e7180a592851535aa8 Mon Sep 17 00:00:00 2001
From: Artem Khramov <akhramov@pm.me>
Date: Sun, 19 Sep 2021 13:58:57 +0300
Subject: [PATCH] Port pkg/system/mknod.go to FreeBSD

Because FreeBSD uses 64-bit device nodes (see
https://reviews.freebsd.org/rS318736), Linux implementation of
`system.Mknod` & `system.Mkdev` is not sufficient.

This change adds freebsd-specific implementations for `Mknod` and
Mkdev`.

Signed-off-by: Artem Khramov <akhramov@pm.me>
---
 pkg/system/mknod.go         |  6 ------
 pkg/system/mknod_freebsd.go | 14 ++++++++++++++
 pkg/system/mknod_linux.go   | 11 +++++++++++
 3 files changed, 25 insertions(+), 6 deletions(-)
 create mode 100644 pkg/system/mknod_freebsd.go
 create mode 100644 pkg/system/mknod_linux.go

diff --git a/pkg/system/mknod.go b/pkg/system/mknod.go
index 5734d47d45..d27152c0f5 100644
--- a/pkg/system/mknod.go
+++ b/pkg/system/mknod.go
@@ -7,12 +7,6 @@ import (
 	"golang.org/x/sys/unix"
 )
 
-// Mknod creates a filesystem node (file, device special file or named pipe) named path
-// with attributes specified by mode and dev.
-func Mknod(path string, mode uint32, dev int) error {
-	return unix.Mknod(path, mode, dev)
-}
-
 // Mkdev is used to build the value of linux devices (in /dev/) which specifies major
 // and minor number of the newly created device special file.
 // Linux device nodes are a bit weird due to backwards compat with 16 bit device nodes.
diff --git a/pkg/system/mknod_freebsd.go b/pkg/system/mknod_freebsd.go
new file mode 100644
index 0000000000..c890be116f
--- /dev/null
+++ b/pkg/system/mknod_freebsd.go
@@ -0,0 +1,14 @@
+//go:build freebsd
+// +build freebsd
+
+package system // import "github.com/docker/docker/pkg/system"
+
+import (
+	"golang.org/x/sys/unix"
+)
+
+// Mknod creates a filesystem node (file, device special file or named pipe) named path
+// with attributes specified by mode and dev.
+func Mknod(path string, mode uint32, dev int) error {
+	return unix.Mknod(path, mode, uint64(dev))
+}
diff --git a/pkg/system/mknod_linux.go b/pkg/system/mknod_linux.go
new file mode 100644
index 0000000000..5c65f8a49c
--- /dev/null
+++ b/pkg/system/mknod_linux.go
@@ -0,0 +1,11 @@
+package system // import "github.com/docker/docker/pkg/system"
+
+import (
+	"golang.org/x/sys/unix"
+)
+
+// Mknod creates a filesystem node (file, device special file or named pipe) named path
+// with attributes specified by mode and dev.
+func Mknod(path string, mode uint32, dev int) error {
+	return unix.Mknod(path, mode, dev)
+}