diff options
| author | Antony Antony <antony@phenome.org> | 2017-06-06 12:12:13 +0200 |
|---|---|---|
| committer | Steffen Klassert <steffen.klassert@secunet.com> | 2017-06-07 08:25:58 +0200 |
| commit | 4ab47d47af20addd6ecee1ece0205b1fbf483942 (patch) | |
| tree | 7159ac7737efd4cc51aa11ed14c99fffa7e188bb /net/xfrm/xfrm_state.c | |
| parent | d49c9dc1c84878b0c044af7519a80ccb814b3f9f (diff) | |
| download | linux-4ab47d47af20addd6ecee1ece0205b1fbf483942.tar.bz2 | |
xfrm: extend MIGRATE with UDP encapsulation port
Add UDP encapsulation port to XFRM_MSG_MIGRATE using an optional
netlink attribute XFRMA_ENCAP.
The devices that support IKE MOBIKE extension (RFC-4555 Section 3.8)
could go to sleep for a few minutes and wake up. When it wake up the
NAT mapping could have expired, the device send a MOBIKE UPDATE_SA
message to migrate the IPsec SA. The change could be a change UDP
encapsulation port, IP address, or both.
Reported-by: Paul Wouters <pwouters@redhat.com>
Signed-off-by: Antony Antony <antony@phenome.org>
Reviewed-by: Richard Guy Briggs <rgb@tricolour.ca>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/xfrm/xfrm_state.c')
| -rw-r--r-- | net/xfrm/xfrm_state.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index 5780cdad2260..b76e6730b165 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -1309,7 +1309,8 @@ out: EXPORT_SYMBOL(xfrm_state_add); #ifdef CONFIG_XFRM_MIGRATE -static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig) +static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig, + struct xfrm_encap_tmpl *encap) { struct net *net = xs_net(orig); struct xfrm_state *x = xfrm_state_alloc(net); @@ -1351,8 +1352,14 @@ static struct xfrm_state *xfrm_state_clone(struct xfrm_state *orig) } x->props.calgo = orig->props.calgo; - if (orig->encap) { - x->encap = kmemdup(orig->encap, sizeof(*x->encap), GFP_KERNEL); + if (encap || orig->encap) { + if (encap) + x->encap = kmemdup(encap, sizeof(*x->encap), + GFP_KERNEL); + else + x->encap = kmemdup(orig->encap, sizeof(*x->encap), + GFP_KERNEL); + if (!x->encap) goto error; } @@ -1440,11 +1447,12 @@ struct xfrm_state *xfrm_migrate_state_find(struct xfrm_migrate *m, struct net *n EXPORT_SYMBOL(xfrm_migrate_state_find); struct xfrm_state *xfrm_state_migrate(struct xfrm_state *x, - struct xfrm_migrate *m) + struct xfrm_migrate *m, + struct xfrm_encap_tmpl *encap) { struct xfrm_state *xc; - xc = xfrm_state_clone(x); + xc = xfrm_state_clone(x, encap); if (!xc) return NULL; |