tpm2-tools/SOURCES/0004-tpm2_eventlog-clean-up-some-magic-numbers.patch

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2022-11-15 15:37:45 +00:00
From 2781de8cb60d0e8efb72d57eb1178f2f6df9415c Mon Sep 17 00:00:00 2001
From: Jerry Snitselaar <jsnitsel@redhat.com>
Date: Tue, 2 Aug 2022 11:59:06 -0700
Subject: [PATCH 4/9] tpm2_eventlog: clean up some magic numbers
Make the code a bit clearer by making it clear
we are subtracting the size of the EFI_GUID member
from the EFI_SIGNATURE_DATA size.
Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com>
---
lib/tpm2_eventlog_yaml.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/lib/tpm2_eventlog_yaml.c b/lib/tpm2_eventlog_yaml.c
index 647a2225..fee78027 100644
--- a/lib/tpm2_eventlog_yaml.c
+++ b/lib/tpm2_eventlog_yaml.c
@@ -374,13 +374,13 @@ static bool yaml_uefi_var(UEFI_VARIABLE_DATA *data, size_t size, UINT32 type,
for (i = 0; i < signatures; i++) {
EFI_SIGNATURE_DATA *s = (EFI_SIGNATURE_DATA *)signature;
char *sdata = calloc (1,
- BYTES_TO_HEX_STRING_SIZE(slist->SignatureSize-16));
+ BYTES_TO_HEX_STRING_SIZE(slist->SignatureSize - sizeof(EFI_GUID)));
if (sdata == NULL) {
LOG_ERR("Failled to allocate data: %s\n", strerror(errno));
return false;
}
- bytes_to_str(s->SignatureData, slist->SignatureSize-16,
- sdata, BYTES_TO_HEX_STRING_SIZE(slist->SignatureSize-16));
+ bytes_to_str(s->SignatureData, slist->SignatureSize - sizeof(EFI_GUID),
+ sdata, BYTES_TO_HEX_STRING_SIZE(slist->SignatureSize - sizeof(EFI_GUID)));
guid_unparse_lower(s->SignatureOwner, uuidstr);
tpm2_tool_output(" - SignatureOwner: %s\n"
" SignatureData: %s\n",
@@ -426,13 +426,13 @@ static bool yaml_uefi_var(UEFI_VARIABLE_DATA *data, size_t size, UINT32 type,
EFI_SIGNATURE_DATA *s= (EFI_SIGNATURE_DATA *)&data->UnicodeName[
data->UnicodeNameLength];
char *sdata = calloc (1,
- BYTES_TO_HEX_STRING_SIZE(data->VariableDataLength - 16));
+ BYTES_TO_HEX_STRING_SIZE(data->VariableDataLength - sizeof(EFI_GUID)));
if (sdata == NULL) {
LOG_ERR("Failled to allocate data: %s\n", strerror(errno));
return false;
}
- bytes_to_str(s->SignatureData, data->VariableDataLength - 16,
- sdata, BYTES_TO_HEX_STRING_SIZE(data->VariableDataLength - 16));
+ bytes_to_str(s->SignatureData, data->VariableDataLength - sizeof(EFI_GUID),
+ sdata, BYTES_TO_HEX_STRING_SIZE(data->VariableDataLength - sizeof(EFI_GUID)));
guid_unparse_lower(s->SignatureOwner, uuidstr);
tpm2_tool_output(" - SignatureOwner: %s\n"
" SignatureData: %s\n",
--
2.37.3