lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

selinux: introduce permissive types

Browse Source 
Introduce the concept of a permissive type.  A new ebitmap is introduced to
the policy database which indicates if a given type has the permissive bit
set or not.  This bit is tested for the scontext of any denial.  The bit is
meaningless on types which only appear as the target of a decision and never
the source.  A domain running with a permissive type will be allowed to
perform any action similarly to when the system is globally set permissive.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
Eric Paris
2008-03-31 12:17:33 +11:00
committed by James Morris
parent 0356357c51
commit 64dbf07474
6 changed files with 48 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
security/selinux/avc.c
View File

@@ -893,12 +893,13 @@ int avc_has_perm_noaudit(u32 ssid, u32 tsid,
denied = requested & ~(p_ae->avd.allowed);
if (denied) {
if (selinux_enforcing || (flags & AVC_STRICT))
if (flags & AVC_STRICT)
rc = -EACCES;
else if (!selinux_enforcing || security_permissive_sid(ssid))
avc_update_node(AVC_CALLBACK_GRANT, requested, ssid,
tsid, tclass);
else
if (node)
avc_update_node(AVC_CALLBACK_GRANT,requested,
ssid,tsid,tclass);
rc = -EACCES;
}
rcu_read_unlock();