diff options
Diffstat (limited to 'internal/fusefrontend')
| -rw-r--r-- | internal/fusefrontend/fs.go | 5 | ||||
| -rw-r--r-- | internal/fusefrontend/names.go | 6 |
2 files changed, 11 insertions, 0 deletions
diff --git a/internal/fusefrontend/fs.go b/internal/fusefrontend/fs.go index 1b6941e..c0d6151 100644 --- a/internal/fusefrontend/fs.go +++ b/internal/fusefrontend/fs.go @@ -47,6 +47,11 @@ type FS struct { // "gocryptfs -fsck" reads from the channel to also catch these transparently- // mitigated corruptions. MitigatedCorruptions chan string + // Track accesses to the filesystem so that we can know when to autounmount. + // An access is considered to have happened on every call to encryptPath, + // which is called as part of every filesystem operation. + // (This flag uses a uint32 so that it can be reset with CompareAndSwapUint32.) + AccessedSinceLastCheck uint32 } var _ pathfs.FileSystem = &FS{} // Verify that interface is implemented. diff --git a/internal/fusefrontend/names.go b/internal/fusefrontend/names.go index 5530e3e..3bf64d5 100644 --- a/internal/fusefrontend/names.go +++ b/internal/fusefrontend/names.go @@ -60,9 +60,15 @@ func (fs *FS) openBackingDir(relPath string) (dirfd int, cName string, err error // encryptPath - encrypt relative plaintext path func (fs *FS) encryptPath(plainPath string) (string, error) { + if plainPath != "" { // Empty path gets encrypted all the time without actual file accesses. + fs.AccessedSinceLastCheck = 1 + } else { // Empty string gets encrypted as empty string + return plainPath, nil + } if fs.args.PlaintextNames { return plainPath, nil } + fs.dirIVLock.RLock() cPath, err := fs.nameTransform.EncryptPathDirIV(plainPath, fs.args.Cipherdir) tlog.Debug.Printf("encryptPath '%s' -> '%s' (err: %v)", plainPath, cPath, err) |