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selinux: Swap two blocks handling setfilecon_raw() failure

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In virSecuritySELinuxSetFileconImpl() we have code that handles
setfilecon_raw() failure. The code consists of two blocks: one
for dealing with shared filesystem like NFS (errno is ENOTSUP or
EROFS) and the other block that's dealing with EPERM for
privileged daemon. Well, the order of these two blocks is a bit
confusing because the comment above them mentions the NFS case
but EPERM block follows. Swap these two blocks to make it less
confusing.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
This commit is contained in:
Michal Privoznik 2021-09-20 12:21:04 +02:00
parent 029a892abd
commit 466920ea1d
1 changed files with 15 additions and 15 deletions
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30
src/security/security_selinux.c
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@ -1261,22 +1261,9 @@ virSecuritySELinuxSetFileconImpl(const char *path,
* boolean tunables to allow it ...
*/
VIR_WARNINGS_NO_WLOGICALOP_EQUAL_EXPR
if (setfilecon_errno != EOPNOTSUPP && setfilecon_errno != ENOTSUP &&
setfilecon_errno != EROFS) {
if (setfilecon_errno == EOPNOTSUPP || setfilecon_errno == ENOTSUP ||
setfilecon_errno == EROFS) {
VIR_WARNINGS_RESET
/* However, don't claim error if SELinux is in Enforcing mode and
* we are running as unprivileged user and we really did see EPERM.
* Otherwise we want to return error if SELinux is Enforcing. */
if (security_getenforce() == 1 &&
(setfilecon_errno != EPERM || privileged)) {
virReportSystemError(setfilecon_errno,
_("unable to set security context '%s' on '%s'"),
tcon, path);
return -1;
}
VIR_WARN("unable to set security context '%s' on '%s' (errno %d)",
tcon, path, setfilecon_errno);
} else {
const char *msg;
if (virFileIsSharedFSType(path, VIR_FILE_SHFS_NFS) == 1 &&
security_get_boolean_active("virt_use_nfs") != 1) {
@ -1290,6 +1277,19 @@ virSecuritySELinuxSetFileconImpl(const char *path,
VIR_INFO("Setting security context '%s' on '%s' not supported",
tcon, path);
}
} else {
/* However, don't claim error if SELinux is in Enforcing mode and
* we are running as unprivileged user and we really did see EPERM.
* Otherwise we want to return error if SELinux is Enforcing. */
if (security_getenforce() == 1 &&
(setfilecon_errno != EPERM || privileged)) {
virReportSystemError(setfilecon_errno,
_("unable to set security context '%s' on '%s'"),
tcon, path);
return -1;
}
VIR_WARN("unable to set security context '%s' on '%s' (errno %d)",
tcon, path, setfilecon_errno);
}
return 1;