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Check ENCRYPT_C and DECRYPT_C fields in data encryption capabilities page (#85)

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This commit is contained in:
James Wilson
2022-06-05 17:42:59 -07:00
committed by GitHub
parent a3d03e5211
commit f800dc2f51
1 changed files with 20 additions and 0 deletions
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20
src/main.cpp
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@@ -619,6 +619,26 @@ int main(int argc, char **argv)
}
const scsi::algorithm_descriptor& ad = *algo_it;
auto encrypt_c {static_cast<unsigned int>(
ad.flags1 & scsi::algorithm_descriptor::flags1_encrypt_c_mask)};
if (enc_mode != scsi::encrypt_mode::off &&
encrypt_c != 2u << scsi::algorithm_descriptor::flags1_encrypt_c_pos) {
std::cerr
<< "stenc: Device does not support encryption using algorithm index "
<< std::dec << static_cast<unsigned int>(*algorithm_index) << '\n';
std::exit(EXIT_FAILURE);
}
auto decrypt_c {static_cast<unsigned int>(
ad.flags1 & scsi::algorithm_descriptor::flags1_decrypt_c_mask)};
if (dec_mode != scsi::decrypt_mode::off &&
decrypt_c != 2u << scsi::algorithm_descriptor::flags1_decrypt_c_pos) {
std::cerr
<< "stenc: Device does not support decryption using algorithm index "
<< std::dec << static_cast<unsigned int>(*algorithm_index) << '\n';
std::exit(EXIT_FAILURE);
}
if ((enc_mode != scsi::encrypt_mode::off ||
dec_mode != scsi::decrypt_mode::off) &&
key.size() != ntohs(ad.key_length)) {