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Do not get 'generation' using ioctl when evm_portable is true

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If a signatures is detected as being portable do not attempt to read the
generation with the ioctl since in some cases this may not be supported
by the filesystem and is also not needed for computing a portable
signature.

This avoids the current work-around of passing --generation 0 when the
ioctl is not supported by the filesystem.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
This commit is contained in:
Stefan Berger 2023-04-18 12:16:02 -04:00 committed by Mimi Zohar
parent 29c4268764
commit 31f4a22b57
1 changed files with 1 additions and 1 deletions
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src/evmctl.c
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@ -376,7 +376,7 @@ static int calc_evm_hash(const char *file, unsigned char *hash)
if (mode_str) if (mode_str)
st.st_mode = strtoul(mode_str, NULL, 10); st.st_mode = strtoul(mode_str, NULL, 10);
if (!evm_immutable) { if (!evm_immutable && !evm_portable) {
if (S_ISREG(st.st_mode) && !generation_str) { if (S_ISREG(st.st_mode) && !generation_str) {
int fd = open(file, 0); int fd = open(file, 0);