From: Masahide NAKAMURA <[EMAIL PROTECTED]>
With this patch transformation state is updated last used time
for each sending. Xtime is used for it like other state lifetime
expiration.
Mobile IPv6 enabled nodes will want to know traffic status of each
binding (e.g. judgement to request binding refresh by correspondent node,
or to keep home/care-of nonce alive by mobile node).
The last used timestamp is an important hint about it.
Based on MIPL2 kernel patch.
This patch was also written by: Henrik Petander <[EMAIL PROTECTED]>
Signed-off-by: Masahide NAKAMURA <[EMAIL PROTECTED]>
Signed-off-by: YOSHIFUJI Hideaki <[EMAIL PROTECTED]>
---
include/linux/xfrm.h | 1 +
include/net/xfrm.h | 3 +++
net/ipv6/xfrm6_output.c | 2 ++
net/xfrm/xfrm_user.c | 3 +++
4 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/include/linux/xfrm.h b/include/linux/xfrm.h
index b53f799..1d8c1f2 100644
--- a/include/linux/xfrm.h
+++ b/include/linux/xfrm.h
@@ -236,6 +236,7 @@ enum xfrm_attr_type_t {
XFRMA_ETIMER_THRESH,
XFRMA_SRCADDR, /* xfrm_address_t */
XFRMA_COADDR, /* xfrm_address_t */
+ XFRMA_LASTUSED,
__XFRMA_MAX
#define XFRMA_MAX (__XFRMA_MAX - 1)
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index aeee0e2..86c1188 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -168,6 +168,9 @@ struct xfrm_state
struct xfrm_lifetime_cur curlft;
struct timer_list timer;
+ /* Last used time */
+ u64 lastused;
+
/* Reference to data common to all the instances of this
* transformer. */
struct xfrm_type *type;
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c
index b4628fb..db58104 100644
--- a/net/ipv6/xfrm6_output.c
+++ b/net/ipv6/xfrm6_output.c
@@ -75,6 +75,8 @@ static int xfrm6_output_one(struct sk_bu
x->curlft.bytes += skb->len;
x->curlft.packets++;
+ if (x->props.mode == XFRM_MODE_ROUTEOPTIMIZATION)
+ x->lastused = (u64)xtime.tv_sec;
spin_unlock_bh(&x->lock);
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 41a02d6..6511085 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -593,6 +593,9 @@ static int dump_one_state(struct xfrm_st
if (x->coaddr)
RTA_PUT(skb, XFRMA_COADDR, sizeof(*x->coaddr), x->coaddr);
+ if (x->lastused)
+ RTA_PUT(skb, XFRMA_LASTUSED, sizeof(x->lastused), &x->lastused);
+
nlh->nlmsg_len = skb->tail - b;
out:
sp->this_idx++;
--
1.4.0
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
