43 lines
1.1 KiB
Go
43 lines
1.1 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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"golang.org/x/sys/unix"
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"github.com/rfjakob/gocryptfs/internal/ctlsocksrv"
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"github.com/rfjakob/gocryptfs/internal/pathiv"
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)
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// Verify that the interface is implemented.
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var _ ctlsocksrv.Interface = &RootNode{}
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// EncryptPath implements ctlsock.Backend.
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// This is used for the control socket and for the "-exclude" logic.
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func (rn *RootNode) EncryptPath(plainPath string) (string, error) {
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if rn.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, err := rn.nameTransform.EncryptName(part, dirIV)
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if err != nil {
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return "", err
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}
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if rn.args.LongNames && len(encryptedPart) > unix.NAME_MAX {
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encryptedPart = rn.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 (rn *RootNode) DecryptPath(cipherPath string) (string, error) {
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p, err := rn.decryptPath(cipherPath)
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return p, err
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}
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