path: root/security/selinux/ss/mls.c
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authorStephen Smalley <sds@tycho.nsa.gov>2010-01-14 17:28:10 -0500
committerJames Morris <jmorris@namei.org>2010-01-18 09:54:26 +1100
commit19439d05b88dafc4e55d9ffce84ccc27cf8b2bcc (patch)
treee529e1bbba49f30684c3b88a67df1d62ba3e11b1 /security/selinux/ss/mls.c
parentsecurity: correct error returns for get/set security with private inodes (diff)
selinux: change the handling of unknown classes
If allow_unknown==deny, SELinux treats an undefined kernel security class as an error condition rather than as a typical permission denial and thus does not allow permissions on undefined classes even when in permissive mode. Change the SELinux logic so that this case is handled as a typical permission denial, subject to the usual permissive mode and permissive domain handling. Also drop the 'requested' argument from security_compute_av() and helpers as it is a legacy of the original security server interface and is unused. Changes: - Handle permissive domains consistently by moving up the test for a permissive domain. - Make security_compute_av_user() consistent with security_compute_av(); the only difference now is that security_compute_av() performs mapping between the kernel-private class and permission indices and the policy values. In the userspace case, this mapping is handled by libselinux. - Moved avd_init inside the policy lock. Based in part on a patch by Paul Moore <paul.moore@hp.com>. Reported-by: Andrew Worsley <amworsley@gmail.com> Signed-off-by: Stephen D. Smalley <sds@tycho.nsa.gov> Reviewed-by: Paul Moore <paul.moore@hp.com> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/selinux/ss/mls.c')
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