[XFRM] STATE: Introduce care-of address.

Care-of address is carried by state as a transformation option like
IPsec encryption/authentication algorithm.

Based on MIPL2 kernel patch.

Signed-off-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp>
Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index f05371556cce..3da89c01ea71 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -78,6 +78,7 @@ static void xfrm_state_gc_destroy(struct xfrm_state *x)
         kfree(x->ealg);
         kfree(x->calg);
         kfree(x->encap);
+        kfree(x->coaddr);
         if (x->mode)
                 xfrm_put_mode(x->mode);
         if (x->type) {
@@ -603,6 +604,11 @@ out:
         if (likely(x1->km.state == XFRM_STATE_VALID)) {
                 if (x->encap && x1->encap)
                         memcpy(x1->encap, x->encap, sizeof(*x1->encap));
+                if (x->coaddr && x1->coaddr) {
+                        memcpy(x1->coaddr, x->coaddr, sizeof(*x1->coaddr));
+                }
+                if (!use_spi && memcmp(&x1->sel, &x->sel, sizeof(x1->sel)))
+                        memcpy(&x1->sel, &x->sel, sizeof(x1->sel));
                 memcpy(&x1->lft, &x->lft, sizeof(x1->lft));
                 x1->km.dying = 0;