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authorVenkat Yekkirala <vyekkirala@trustedcs.com>2006-11-08 17:04:26 -0600
committerDavid S. Miller <davem@sunset.davemloft.net>2006-12-02 21:21:34 -0800
commit67f83cbf081a70426ff667e8d14f94e13ed3bdca (patch)
tree776a40733eacb9071478f865e6791daa3f6fd602 /net
parent6b877699c6f1efede4545bcecc367786a472eedb (diff)
SELinux: Fix SA selection semantics
Fix the selection of an SA for an outgoing packet to be at the same context as the originating socket/flow. This eliminates the SELinux policy's ability to use/sendto SAs with contexts other than the socket's. With this patch applied, the SELinux policy will require one or more of the following for a socket to be able to communicate with/without SAs: 1. To enable a socket to communicate without using labeled-IPSec SAs: allow socket_t unlabeled_t:association { sendto recvfrom } 2. To enable a socket to communicate with labeled-IPSec SAs: allow socket_t self:association { sendto }; allow socket_t peer_sa_t:association { recvfrom }; Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'net')
-rw-r--r--net/xfrm/xfrm_policy.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 7736b23c3f0..b88b038530c 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1894,7 +1894,8 @@ int xfrm_bundle_ok(struct xfrm_policy *pol, struct xfrm_dst *first,
if (fl && !xfrm_selector_match(&dst->xfrm->sel, fl, family))
return 0;
- if (fl && !security_xfrm_flow_state_match(fl, dst->xfrm, pol))
+ if (fl && pol &&
+ !security_xfrm_state_pol_flow_match(dst->xfrm, pol, fl))
return 0;
if (dst->xfrm->km.state != XFRM_STATE_VALID)
return 0;