selinux/libsepol/include
Christian Göttsche ec78788c29 libsepol: Add not self support for neverallow rules
Add not self support for neverallow rules.

Example 1
  allow TYPE1 TYPE1 : CLASS1 PERM1; # Rule 1
  allow TYPE1 TYPE2 : CLASS1 PERM1; # Rule 2
  neverallow TYPE1 ~self : CLASS1 PERM1;

Rule 1 is not a violation of the neverallow. Rule 2 is.

Example 2
  allow TYPE1 TYPE1 : CLASS2 PERM2; # Rule 1
  allow TYPE1 TYPE2 : CLASS2 PERM2; # Rule 2
  allow TYPE1 TYPE3 : CLASS2 PERM2; # Rule 3
  neverallow ATTR1 { ATTR2 -self } : CLASS2 PERM2;

Assuming TYPE1 has attribute ATTR1 and TYPE1 and TYPE2 have
attribute ATTR2, then rule 1 and 3 are not violations of the
neverallow while rule 2 is. Rule 3 is not a violation because
TYPE3 does not have attribute ATTR2.

Adopted improvements from James Carter <jwcart2@gmail.com>

Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
2023-03-30 15:08:37 -04:00
..
sepol libsepol: Add not self support for neverallow rules 2023-03-30 15:08:37 -04:00
Makefile libsepol: build: follow standard semantics for DESTDIR and PREFIX 2018-02-14 15:59:36 +01:00