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Handle variable report_data index sizes
fixes #61 A caller of `get_report_with_report_data()` might provide report_data of varying sizes. We need to verify the size of the allocated nv index that holds the report data and recreate it if necessary. Integration tests have been added to test this on CVM hardware. Signed-off-by: Magnus Kulke <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| #[cfg(feature = "integration_test")] | ||
| mod tests { | ||
| use az_snp_vtpm::{hcl, report, vtpm}; | ||
| use serde::Deserialize; | ||
|
|
||
| #[test] | ||
| fn get_report_with_varying_report_data_len() { | ||
| let mut report_data = "test".as_bytes(); | ||
| vtpm::get_report_with_report_data(report_data).unwrap(); | ||
| report_data = "test_test".as_bytes(); | ||
| vtpm::get_report_with_report_data(report_data).unwrap(); | ||
| } | ||
|
|
||
| #[derive(Deserialize, Debug)] | ||
| struct VarDataUserData { | ||
| #[serde(rename = "user-data")] | ||
| user_data: String, | ||
| } | ||
|
|
||
| #[test] | ||
| fn get_report_with_report_data() { | ||
| let mut report_data: [u8; 64] = [0; 64]; | ||
| report_data[42] = 42; | ||
| let bytes = vtpm::get_report_with_report_data(&report_data).unwrap(); | ||
| let hcl_report = hcl::HclReport::new(bytes).unwrap(); | ||
| let var_data = hcl_report.var_data(); | ||
| let VarDataUserData { user_data } = serde_json::from_slice(var_data).unwrap(); | ||
| assert_eq!(user_data.to_lowercase(), hex::encode(report_data)); | ||
|
|
||
| let var_data_hash = hcl_report.var_data_sha256(); | ||
| let snp_report: report::AttestationReport = hcl_report.try_into().unwrap(); | ||
| assert_eq!(var_data_hash, snp_report.report_data[..32]); | ||
| } | ||
|
|
||
| #[test] | ||
| fn get_report() { | ||
| let bytes = vtpm::get_report().unwrap(); | ||
| let hcl_report = hcl::HclReport::new(bytes).unwrap(); | ||
|
|
||
| let var_data_hash = hcl_report.var_data_sha256(); | ||
| let snp_report: report::AttestationReport = hcl_report.try_into().unwrap(); | ||
| assert_eq!(var_data_hash, snp_report.report_data[..32]); | ||
| } | ||
|
|
||
| #[test] | ||
| fn ak_pub() { | ||
| let _ = vtpm::get_ak_pub().unwrap(); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| #[cfg(feature = "integration_test")] | ||
| mod tests { | ||
| use az_tdx_vtpm::{hcl, tdx, vtpm}; | ||
| use serde::Deserialize; | ||
|
|
||
| #[test] | ||
| fn get_report_with_varying_report_data_len() { | ||
| let mut report_data = "test".as_bytes(); | ||
| vtpm::get_report_with_report_data(report_data).unwrap(); | ||
| report_data = "test_test".as_bytes(); | ||
| vtpm::get_report_with_report_data(report_data).unwrap(); | ||
| } | ||
|
|
||
| #[derive(Deserialize, Debug)] | ||
| struct VarDataUserData { | ||
| #[serde(rename = "user-data")] | ||
| user_data: String, | ||
| } | ||
|
|
||
| #[test] | ||
| fn get_report_with_report_data() { | ||
| let mut report_data: [u8; 64] = [0; 64]; | ||
| report_data[42] = 42; | ||
| let bytes = vtpm::get_report_with_report_data(&report_data).unwrap(); | ||
| let hcl_report = hcl::HclReport::new(bytes).unwrap(); | ||
| let var_data = hcl_report.var_data(); | ||
| let VarDataUserData { user_data } = serde_json::from_slice(var_data).unwrap(); | ||
| assert_eq!(user_data.to_lowercase(), hex::encode(report_data)); | ||
|
|
||
| let var_data_hash = hcl_report.var_data_sha256(); | ||
| let td_report: tdx::TdReport = hcl_report.try_into().unwrap(); | ||
| assert_eq!(var_data_hash, td_report.report_mac.reportdata[..32]); | ||
| } | ||
|
|
||
| #[test] | ||
| fn get_report() { | ||
| let bytes = vtpm::get_report().unwrap(); | ||
| let hcl_report = hcl::HclReport::new(bytes).unwrap(); | ||
|
|
||
| let var_data_hash = hcl_report.var_data_sha256(); | ||
| let td_report: tdx::TdReport = hcl_report.try_into().unwrap(); | ||
| assert_eq!(var_data_hash, td_report.report_mac.reportdata[..32]); | ||
| } | ||
|
|
||
| #[test] | ||
| fn ak_pub() { | ||
| let _ = vtpm::get_ak_pub().unwrap(); | ||
| } | ||
| } |
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