# id
uid=0(root) gid=0(root) context=u:r:shell:s0
# getenforce
Permissive
# setenforce 1
# getenforce
Could not get enforcing status: Permission denied
# setenforce 0
setenforce: Could not set enforcing status: Permission denied

# su 0 getenforce
Enforcing
# su 0 setenforce 0
# getenforce
Permissive