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[PATCH] selinux: MLS compatibility

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This patch enables files created on a MLS-enabled SELinux system to be
accessible on a non-MLS SELinux system, by skipping the MLS component of
the security context in the non-MLS case.

Signed-off-by:  Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by:  James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Stephen Smalley 2005-11-08 21:34:32 -08:00 committed by Linus Torvalds
parent d34d7ae266
commit e517a0cd85
1 changed files with 4 additions and 1 deletions
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5
security/selinux/ss/mls.c
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@ -262,8 +262,11 @@ int mls_context_to_sid(char oldc,
struct cat_datum *catdatum, *rngdatum;
int l, rc = -EINVAL;
if (!selinux_mls_enabled)
if (!selinux_mls_enabled) {
if (def_sid != SECSID_NULL && oldc)
*scontext += strlen(*scontext);
return 0;
}
/*
* No MLS component to the security context, try and map to