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Add COS 121 event log test #22

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Merged
alexmwu merged 1 commit into from
Apr 22, 2025
Merged

Add COS 121 event log test #22

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2 changes: 2 additions & 0 deletions testdata/eventlog_data.go
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Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,8 @@ var (
Cos93AmdSevEventLog []byte
//go:embed eventlogs/tpm/cos-101-amd-sev.bin
Cos101AmdSevEventLog []byte
//go:embed eventlogs/tpm/cos-121-amd-sev.bin
Cos121AmdSevEventLog []byte
)

// Kernel command lines from event logs.
Expand Down
Binary file added testdata/eventlogs/tpm/cos-121-amd-sev.bin
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55 changes: 53 additions & 2 deletions tpmeventlog/replay_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -511,6 +511,50 @@ var COS101AmdSev = eventLog{
},
}

var COS121AmdSev = eventLog{
RawLog: testdata.Cos121AmdSevEventLog,
Banks: []register.PCRBank{
testutil.MakePCRBank(pb.HashAlgo_SHA1, map[uint32][]byte{
0: decodeHex("2aab58e23ea5120d70a3ebce56bd0e6d5e3035b7"),
1: decodeHex("7c6ceae56da5ec69a014839ed3836c1ad1f97fae"),
2: decodeHex("b2a83b0ebf2f8374299a5b2bdfc31ea955ad7236"),
3: decodeHex("b2a83b0ebf2f8374299a5b2bdfc31ea955ad7236"),
4: decodeHex("744681cd9b2c328732972f44e5c048962a6091db"),
5: decodeHex("2038a05b30e431bc90fefc707eb88b7123781de5"),
6: decodeHex("b2a83b0ebf2f8374299a5b2bdfc31ea955ad7236"),
7: decodeHex("0f3afa2ce65000d446cff333f3fbeb712b82f757"),
8: decodeHex("89a7e2ee73517b718cd9e6219eb460f867a129c1"),
9: decodeHex("23556f8a8369b79f399460d7412461da2867366d"),
14: decodeHex("68cdd38d74c5f61a0dc1bd4718d88f63d2d83f74"),
}),
testutil.MakePCRBank(pb.HashAlgo_SHA256, map[uint32][]byte{
0: decodeHex("a0b5ff3383a1116bd7dc6df177c0c2d433b9ee1813ea958fa5d166a202cb2a85"),
1: decodeHex("b27ff5c19cbceedb0c2895c615375c56a6895e7395dc3b7d4c829c16d476b5ac"),
2: decodeHex("3d458cfe55cc03ea1f443f1562beec8df51c75e14a9fcf9a7234a13f198e7969"),
3: decodeHex("3d458cfe55cc03ea1f443f1562beec8df51c75e14a9fcf9a7234a13f198e7969"),
4: decodeHex("aa4b93758b9bb6251f2145d145a0e8cc8999c03a51836110acaaba3a8389ab24"),
5: decodeHex("76a2236828981324a7725fa1eae98d39e715043007645e0d72901130724f58cb"),
6: decodeHex("3d458cfe55cc03ea1f443f1562beec8df51c75e14a9fcf9a7234a13f198e7969"),
7: decodeHex("8c5dc451764d0db9c1e17da03564bcae3a09fa3d7f8e467d9c381dc8698377d6"),
8: decodeHex("64a15058fbcbe58302d3e5fbf282427e6cb14db845cb868dd93711cbd8b1dede"),
9: decodeHex("5898afd0e7191655aab771b1cd161b123ba4e22e642fb006b9247b96731179d1"),
14: decodeHex("6eb05e8a8a6272a8e4b925a67c650daa13c12b1a80cc797d40fd345e29660161"),
}),
},
ExpectedEFIAppDigests: map[pb.HashAlgo][]string{
pb.HashAlgo_SHA1: {
"a27964f69296586fb31b7952864215e13b2a7b85",
"be1709b381979f0966e6181a2e6e76605ce03682",
"118d603d6e600b4bc022731f91e72abc1b14a3a5",
},
pb.HashAlgo_SHA256: {
"451bfd03c48b7aa729dcd8ae3f8aaa9e9e2ab6c01d10cbec26fced02f3895497",
"004a191eabfc1d4e2b1e91e3e76b8affea1b88be560ab9993493be19462618ca",
"efc95c549c438984070116a1f5e49fe5710661c7d9835fb75c92652f8b9a7c23",
},
},
}

func TestParseEventLogs(t *testing.T) {
sbatErrorStr := "asn1: structure error: tags don't match (16 vs {class:0 tag:24 length:10 isCompound:true})"
logs := []struct {
Expand All @@ -535,6 +579,7 @@ func TestParseEventLogs(t *testing.T) {
{COS85AmdSev, "COS85AmdSev", extract.GRUB, nil},
{COS93AmdSev, "COS93AmdSev", extract.GRUB, nil},
{COS101AmdSev, "COS101AmdSev", extract.GRUB, nil},
{COS121AmdSev, "COS121AmdSev", extract.GRUB, nil},
}

for _, log := range logs {
Expand All @@ -544,11 +589,16 @@ func TestParseEventLogs(t *testing.T) {
subtestName := fmt.Sprintf("%s-%s", log.name, hashName)
t.Run(subtestName, func(t *testing.T) {
if _, err := ReplayAndExtract(rawLog, bank, extract.Opts{Loader: log.Bootloader}); err != nil {
matched := false
for _, knownErr := range log.knownErrs {
if !strings.Contains(err.Error(), knownErr) {
t.Errorf("failed to extract log state: %v", err)
if strings.Contains(err.Error(), knownErr) {
matched = true
break
}
}
if len(log.knownErrs) == 0 || !matched {
t.Errorf("failed to extract log state: %v", err)
}
}
})
}
Expand Down Expand Up @@ -772,6 +822,7 @@ func TestParseEfiState(t *testing.T) {
{COS85AmdSev, "COS85AmdSev"},
{COS93AmdSev, "COS93AmdSev"},
{COS101AmdSev, "COS101AmdSev"},
{COS121AmdSev, "COS121AmdSev"},
}
for _, log := range logs {
for _, bank := range log.Banks {
Expand Down
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