[PATCH] selinux: MLS compatibility
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>
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@ -262,8 +262,11 @@ int mls_context_to_sid(char oldc,
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struct cat_datum *catdatum, *rngdatum;
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struct cat_datum *catdatum, *rngdatum;
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int l, rc = -EINVAL;
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int l, rc = -EINVAL;
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if (!selinux_mls_enabled)
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if (!selinux_mls_enabled) {
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if (def_sid != SECSID_NULL && oldc)
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*scontext += strlen(*scontext);
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return 0;
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return 0;
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}
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/*
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/*
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* No MLS component to the security context, try and map to
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* No MLS component to the security context, try and map to
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