39 lines
1.2 KiB
Go
39 lines
1.2 KiB
Go
package fusefrontend_reverse
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import (
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"path/filepath"
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"strings"
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"syscall"
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"github.com/rfjakob/gocryptfs/internal/ctlsock"
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"github.com/rfjakob/gocryptfs/internal/pathiv"
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)
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var _ ctlsock.Interface = &ReverseFS{} // Verify that interface is implemented.
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// EncryptPath implements ctlsock.Backend.
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// This is actually not used inside reverse mode, but we implement it because
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// third-party tools want to encrypt paths through the control socket.
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func (rfs *ReverseFS) EncryptPath(plainPath string) (string, error) {
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if rfs.args.PlaintextNames || plainPath == "" {
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return plainPath, nil
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}
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cipherPath := ""
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parts := strings.Split(plainPath, "/")
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for _, part := range parts {
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dirIV := pathiv.Derive(cipherPath, pathiv.PurposeDirIV)
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encryptedPart := rfs.nameTransform.EncryptName(part, dirIV)
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if rfs.args.LongNames && len(encryptedPart) > syscall.NAME_MAX {
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encryptedPart = rfs.nameTransform.HashLongName(encryptedPart)
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}
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cipherPath = filepath.Join(cipherPath, encryptedPart)
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}
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return cipherPath, nil
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}
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// DecryptPath implements ctlsock.Backend
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func (rfs *ReverseFS) DecryptPath(cipherPath string) (string, error) {
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p, err := rfs.decryptPath(cipherPath)
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return p, err
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}
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