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Commit 859dfd92 authored by Colin Cross's avatar Colin Cross
Browse files

Add executable flag to sbox copy requests 

Add a boolean flag to the sbox proto to request the executable bit
to be set after copying a file.  This will be used for sandboxing
tools when copying a file in from the source tree that would
normally get its executable bit set during installation.

Bug: 124313442
Test: sbox_test.go
Change-Id: Ie2c197bb5183ffc1bf63fd6effd175143cd324d4
parent 5d583952

cmd/sbox/sbox.go

+5 −2
Original line number Diff line number Diff line
@@ -337,7 +337,7 @@ func copyFiles(copies []*sbox_proto.Copy, fromDir, toDir string) error { 
	for _, copyPair := range copies {

		fromPath := joinPath(fromDir, copyPair.GetFrom())

		toPath := joinPath(toDir, copyPair.GetTo())

		err := copyOneFile(fromPath, toPath)

		err := copyOneFile(fromPath, toPath, copyPair.GetExecutable())

		if err != nil {

			return fmt.Errorf("error copying %q to %q: %w", fromPath, toPath, err)

		}
@@ -346,7 +346,7 @@ func copyFiles(copies []*sbox_proto.Copy, fromDir, toDir string) error { 
}



// copyOneFile copies a file.

func copyOneFile(from string, to string) error {

func copyOneFile(from string, to string, executable bool) error {

	err := os.MkdirAll(filepath.Dir(to), 0777)

	if err != nil {

		return err
@@ -358,6 +358,9 @@ func copyOneFile(from string, to string) error { 
	}



	perm := stat.Mode()

	if executable {

		perm = perm | 0100 // u+x

	}



	in, err := os.Open(from)

	if err != nil {

cmd/sbox/sbox_proto/sbox.pb.go

+29 −19
Original line number Diff line number Diff line
@@ -158,6 +158,8 @@ func (m *Command) GetInputHash() string { 
type Copy struct {

	From *string `protobuf:"bytes,1,req,name=from" json:"from,omitempty"`

	To   *string `protobuf:"bytes,2,req,name=to" json:"to,omitempty"`

	// If true, make the file executable after copying it.

	Executable           *bool    `protobuf:"varint,3,opt,name=executable" json:"executable,omitempty"`

	XXX_NoUnkeyedLiteral struct{} `json:"-"`

	XXX_unrecognized     []byte   `json:"-"`

	XXX_sizecache        int32    `json:"-"`
@@ -202,6 +204,13 @@ func (m *Copy) GetTo() string { 
	return ""

}



func (m *Copy) GetExecutable() bool {

	if m != nil && m.Executable != nil {

		return *m.Executable

	}

	return false

}



func init() {

	proto.RegisterType((*Manifest)(nil), "sbox.Manifest")

	proto.RegisterType((*Command)(nil), "sbox.Command")
@@ -213,21 +222,22 @@ func init() { 
}



var fileDescriptor_9d0425bf0de86ed1 = []byte{

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	// 268 bytes of a gzipped FileDescriptorProto

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}

cmd/sbox/sbox_proto/sbox.proto

+3 −0
Original line number Diff line number Diff line
@@ -55,4 +55,7 @@ message Command { 
message Copy {

  required string from = 1;

  required string to = 2;



  // If true, make the file executable after copying it.

  optional bool executable = 3;

}
 
 No newline at end of file