tape: avoid unneccessary SCSI request in Drop
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fad95a334a
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8204d9b095
@ -97,6 +97,7 @@ pub struct LtoTapeStatus {
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pub struct SgTape {
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file: File,
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info: InquiryInfo,
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encryption_key_loaded: bool,
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}
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impl SgTape {
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@ -113,7 +114,11 @@ impl SgTape {
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if info.peripheral_type != 1 {
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bail!("not a tape device (peripheral_type = {})", info.peripheral_type);
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}
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Ok(Self { file, info })
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Ok(Self {
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file,
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info,
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encryption_key_loaded: false,
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})
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}
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/// Access to file descriptor - useful for testing
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@ -472,6 +477,9 @@ impl SgTape {
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&mut self,
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key: Option<[u8; 32]>,
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) -> Result<(), Error> {
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self.encryption_key_loaded = key.is_some();
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set_encryption(&mut self.file, key)
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}
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@ -664,8 +672,10 @@ impl SgTape {
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impl Drop for SgTape {
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fn drop(&mut self) {
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// For security reasons, clear the encryption key
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if self.encryption_key_loaded {
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let _ = self.set_encryption(None);
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}
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}
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}
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