xfrm: Have af-specific init_tempsel() initialize family field of temporary selector

While adding MIGRATE support to strongSwan, Andreas Steffen noticed that
the selectors provided in XFRM_MSG_ACQUIRE have their family field
uninitialized (those in MIGRATE do have their family set).

Looking at the code, this is because the af-specific init_tempsel()
(called via afinfo->init_tempsel() in xfrm_init_tempsel()) do not set
the value.

Reported-by: Andreas Steffen <andreas.steffen@strongswan.org>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Arnaud Ebalard <arno@natisbad.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/net/ipv4/xfrm4_state.c b/net/ipv4/xfrm4_state.c
index 07735ed280d7..55dc6beab9aa 100644
--- a/net/ipv4/xfrm4_state.c
+++ b/net/ipv4/xfrm4_state.c
@@ -33,6 +33,7 @@ __xfrm4_init_tempsel(struct xfrm_state *x, struct flowi *fl,
         x->sel.dport_mask = htons(0xffff);
         x->sel.sport = xfrm_flowi_sport(fl);
         x->sel.sport_mask = htons(0xffff);
+        x->sel.family = AF_INET;
         x->sel.prefixlen_d = 32;
         x->sel.prefixlen_s = 32;
         x->sel.proto = fl->proto;