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Mount sys before trying to mount selinuxfs

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If /sys is not present, the attempt to mount selinuxfs will of course
fail. So we try to mount /sys first (and only if that fails fall back to
the /selinux mount point) and then try to mount selinuxfs.

Signed-off-by: Sven Vermeulen <sven.vermeulen@siphos.be>
This commit is contained in:
Sven Vermeulen 2013-09-25 17:51:58 +02:00 committed by Stephen Smalley
parent 3f52a123af
commit ef3e072f58
1 changed files with 10 additions and 2 deletions
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12
libselinux/src/load_policy.c
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@ -370,8 +370,16 @@ int selinux_init_load_policy(int *enforce)
* mount it if present for use in the calls below.
*/
const char *mntpoint = NULL;
if (mount(SELINUXFS, SELINUXMNT, SELINUXFS, 0, 0) == 0 || errno == EBUSY) {
mntpoint = SELINUXMNT;
/* First make sure /sys is mounted */
if (mount("sysfs", "/sys", "sysfs", 0, 0) == 0 || errno == EBUSY) {
if (mount(SELINUXFS, SELINUXMNT, SELINUXFS, 0, 0) == 0 || errno == EBUSY) {
mntpoint = SELINUXMNT;
} else {
/* check old mountpoint */
if (mount(SELINUXFS, OLDSELINUXMNT, SELINUXFS, 0, 0) == 0 || errno == EBUSY) {
mntpoint = OLDSELINUXMNT;
}
}
} else {
/* check old mountpoint */
if (mount(SELINUXFS, OLDSELINUXMNT, SELINUXFS, 0, 0) == 0 || errno == EBUSY) {