tailscale/tailfs/compositefs/mkdir.go
Percy Wegmann 993acf4475 tailfs: initial implementation
Add a WebDAV-based folder sharing mechanism that is exposed to local clients at
100.100.100.100:8080 and to remote peers via a new peerapi endpoint at
/v0/tailfs.

Add the ability to manage folder sharing via the new 'share' CLI sub-command.

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
2024-02-09 09:13:51 -06:00

40 lines
1.0 KiB
Go

// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause
package compositefs
import (
"context"
"os"
"tailscale.com/tailfs/shared"
)
// Mkdir implements webdav.Filesystem. The root of this file system is
// read-only, so any attempts to make directories within the root will fail
// with os.ErrPermission. Attempts to make directories within one of the child
// filesystems will be handled by the respective child.
func (cfs *CompositeFileSystem) Mkdir(ctx context.Context, name string, perm os.FileMode) error {
if shared.IsRoot(name) {
// root directory already exists, consider this okay
return nil
}
pathInfo, err := cfs.pathInfoFor(name)
if pathInfo.refersToChild {
// children can't be made
if pathInfo.child != nil {
// since child already exists, consider this okay
return nil
}
// since child doesn't exist, return permission error
return os.ErrPermission
}
if err != nil {
return err
}
return pathInfo.child.FS.Mkdir(ctx, pathInfo.pathOnChild, perm)
}