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_user.c | |
| parent | ipv6: remove unused variables in esp6 (diff) | |
| download | linux-4ab47d47af20addd6ecee1ece0205b1fbf483942.tar.xz linux-4ab47d47af20addd6ecee1ece0205b1fbf483942.zip | |
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_user.c')
| -rw-r--r-- | net/xfrm/xfrm_user.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 38614df33ec8..fb98892f7d89 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -2243,6 +2243,7 @@ static int xfrm_do_migrate(struct sk_buff *skb, struct nlmsghdr *nlh, int err; int n = 0; struct net *net = sock_net(skb->sk); + struct xfrm_encap_tmpl *encap = NULL; if (attrs[XFRMA_MIGRATE] == NULL) return -EINVAL; @@ -2260,9 +2261,18 @@ static int xfrm_do_migrate(struct sk_buff *skb, struct nlmsghdr *nlh, if (!n) return 0; - xfrm_migrate(&pi->sel, pi->dir, type, m, n, kmp, net); + if (attrs[XFRMA_ENCAP]) { + encap = kmemdup(nla_data(attrs[XFRMA_ENCAP]), + sizeof(*encap), GFP_KERNEL); + if (!encap) + return 0; + } - return 0; + err = xfrm_migrate(&pi->sel, pi->dir, type, m, n, kmp, net, encap); + + kfree(encap); + + return err; } #else static int xfrm_do_migrate(struct sk_buff *skb, struct nlmsghdr *nlh, |