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[XFRM]: Restrict authentication algorithm only when inbound transformation protocol is IPsec.

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For Mobile IPv6 usage, routing header or destination options header is
used and it doesn't require this comparison. It is checked only for
IPsec template.

Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Masahide NAKAMURA 2006-08-23 18:00:48 -07:00 committed by David S. Miller
parent 1d71627d69
commit f3bd484021
1 changed files with 2 additions and 1 deletions
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3
net/xfrm/xfrm_policy.c
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@ -1004,7 +1004,8 @@ xfrm_state_ok(struct xfrm_tmpl *tmpl, struct xfrm_state *x,
(x->id.spi == tmpl->id.spi || !tmpl->id.spi) &&
(x->props.reqid == tmpl->reqid || !tmpl->reqid) &&
x->props.mode == tmpl->mode &&
(tmpl->aalgos & (1<<x->props.aalgo)) &&
((tmpl->aalgos & (1<<x->props.aalgo)) ||
!(xfrm_id_proto_match(tmpl->id.proto, IPSEC_PROTO_ANY))) &&
!(x->props.mode != XFRM_MODE_TRANSPORT &&
xfrm_state_addr_cmp(tmpl, x, family));
}