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tpm: Create empty log file if file was removed

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Create an empty log file if the log file was removed, otherwise the
transaction to set the security labels on the file will fail.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20190726210706.24440-3-stefanb@linux.ibm.com>
This commit is contained in:
Stefan Berger 2019-07-26 17:07:06 -04:00 committed by Eric Blake
parent 20b0fd6d21
commit e1ff8a95c6
1 changed files with 6 additions and 2 deletions
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8
src/qemu/qemu_tpm.c
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@ -340,9 +340,13 @@ qemuTPMEmulatorPrepareHost(virDomainTPMDefPtr tpm,
logDir, vmname) < 0)
goto cleanup;
if (!virFileExists(tpm->data.emulator.logfile) &&
virFileTouch(tpm->data.emulator.logfile, 0644) < 0) {
goto cleanup;
}
/* ... and make sure it can be accessed by swtpm_user */
if (virFileExists(tpm->data.emulator.logfile) &&
chown(tpm->data.emulator.logfile, swtpm_user, swtpm_group) < 0) {
if (chown(tpm->data.emulator.logfile, swtpm_user, swtpm_group) < 0) {
virReportSystemError(errno,
_("Could not chown on swtpm logfile %s"),
tpm->data.emulator.logfile);