[XFRM] IPV6: Update outbound state timestamp for each sending. (9afaca05) · Commits · 戴 / test

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 <petander@tcs.hut.fi> Signed-off-by:

Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by:

YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by:

David S. Miller <davem@davemloft.net>

include/linux/xfrm.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -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)

include/net/xfrm.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -167,6 +167,9 @@ 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;

net/ipv6/xfrm6_output.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -75,6 +75,8 @@ static int xfrm6_output_one(struct sk_buff *skb)

		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);

net/xfrm/xfrm_user.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -595,6 +595,9 @@ static int dump_one_state(struct xfrm_state x, int count, void ptr)
		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++;

Admin message