Further fixes for FreeBSD

This fixes a lot more issues for FreeBSD, including update for continuity vendor.

Signed-off-by: Justin Cormack <justin.cormack@docker.com>

vendor/github.com/containerd/continuity/devices_freebsd.go

@@ -0,0 +1,15 @@
+package continuity
+
+// from /usr/include/sys/types.h
+
+func getmajor(dev uint32) uint64 {
+	return (uint64(dev) >> 24) & 0xff
+}
+
+func getminor(dev uint32) uint64 {
+	return uint64(dev) & 0xffffff
+}
+
+func makedev(major int, minor int) int {
+	return ((major << 24) | minor)
+}

vendor/github.com/containerd/continuity/devices_unix.go

@@ -1,4 +1,4 @@
-// +build linux darwin
+// +build linux darwin freebsd
 
 package continuity
 

vendor/github.com/containerd/continuity/driver_unix.go

@@ -1,4 +1,4 @@
-// +build linux darwin
+// +build linux darwin freebsd
 
 package continuity
 

vendor/github.com/containerd/continuity/hardlinks_unix.go

@@ -1,4 +1,4 @@
-// +build linux darwin
+// +build linux darwin freebsd
 
 package continuity
 
@@ -32,5 +32,5 @@ func newHardlinkKey(fi os.FileInfo) (hardlinkKey, error) {
 		return hardlinkKey{}, errNotAHardLink
 	}
 
-	return hardlinkKey{dev: uint64(sys.Dev), inode: sys.Ino}, nil
+	return hardlinkKey{dev: uint64(sys.Dev), inode: uint64(sys.Ino)}, nil
 }

vendor/github.com/containerd/continuity/manifest.go

@@ -7,8 +7,8 @@ import (
 	"os"
 	"sort"
 
-	"github.com/golang/protobuf/proto"
 	pb "github.com/containerd/continuity/proto"
+	"github.com/golang/protobuf/proto"
 )
 
 // Manifest provides the contents of a manifest. Users of this struct should

vendor/github.com/containerd/continuity/resource.go

@@ -7,8 +7,8 @@ import (
 	"reflect"
 	"sort"
 
-	"github.com/opencontainers/go-digest"
 	pb "github.com/containerd/continuity/proto"
+	"github.com/opencontainers/go-digest"
 )
 
 // TODO(stevvooe): A record based model, somewhat sketched out at the bottom

vendor/github.com/containerd/continuity/resource_unix.go

@@ -1,4 +1,4 @@
-// +build linux darwin
+// +build linux darwin freebsd
 
 package continuity
 

vendor/github.com/containerd/continuity/sysx/chmod_freebsd.go

@@ -0,0 +1,17 @@
+package sysx
+
+const (
+	// AtSymlinkNoFollow defined from AT_SYMLINK_NOFOLLOW in <sys/fcntl.h>
+	AtSymlinkNofollow = 0x200
+)
+
+const (
+
+	// SYS_FCHMODAT defined from golang.org/sys/unix
+	SYS_FCHMODAT = 490
+)
+
+// These functions will be generated by generate.sh
+//    $ GOOS=freebsd GOARCH=amd64 ./generate.sh chmod
+
+//sys  Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)

vendor/github.com/containerd/continuity/sysx/chmod_freebsd_amd64.go

@@ -0,0 +1,25 @@
+// mksyscall.pl chmod_freebsd.go
+// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
+
+package sysx
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) {
+	var _p0 *byte
+	_p0, err = syscall.BytePtrFromString(path)
+	if err != nil {
+		return
+	}
+	_, _, e1 := syscall.Syscall6(SYS_FCHMODAT, uintptr(dirfd), uintptr(unsafe.Pointer(_p0)), uintptr(mode), uintptr(flags), 0, 0)
+	use(unsafe.Pointer(_p0))
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}

vendor/github.com/containerd/continuity/sysx/nodata_linux.go

@@ -0,0 +1,7 @@
+package sysx
+
+import (
+	"syscall"
+)
+
+const ENODATA = syscall.ENODATA

vendor/github.com/containerd/continuity/sysx/nodata_unix.go

@@ -0,0 +1,9 @@
+// +build darwin freebsd
+
+package sysx
+
+import (
+	"syscall"
+)
+
+const ENODATA = syscall.ENOATTR

vendor/github.com/containerd/continuity/sysx/xattr_freebsd.go

@@ -0,0 +1,53 @@
+package sysx
+
+import (
+	"errors"
+)
+
+// Initial stub version for FreeBSD. FreeBSD has a different
+// syscall API from Darwin and Linux for extended attributes;
+// it is also not widely used. It is not exposed at all by the
+// Go syscall package, so we need to implement directly eventually.
+
+var unsupported error = errors.New("extended attributes unsupported on FreeBSD")
+
+// Listxattr calls syscall listxattr and reads all content
+// and returns a string array
+func Listxattr(path string) ([]string, error) {
+	return []string{}, nil
+}
+
+// Removexattr calls syscall removexattr
+func Removexattr(path string, attr string) (err error) {
+	return unsupported
+}
+
+// Setxattr calls syscall setxattr
+func Setxattr(path string, attr string, data []byte, flags int) (err error) {
+	return unsupported
+}
+
+// Getxattr calls syscall getxattr
+func Getxattr(path, attr string) ([]byte, error) {
+	return []byte{}, nil
+}
+
+// LListxattr lists xattrs, not following symlinks
+func LListxattr(path string) ([]string, error) {
+	return []string{}, nil
+}
+
+// LRemovexattr removes an xattr, not following symlinks
+func LRemovexattr(path string, attr string) (err error) {
+	return unsupported
+}
+
+// LSetxattr sets an xattr, not following symlinks
+func LSetxattr(path string, attr string, data []byte, flags int) (err error) {
+	return unsupported
+}
+
+// LGetxattr gets an xattr, not following symlinks
+func LGetxattr(path, attr string) ([]byte, error) {
+	return []byte{}, nil
+}