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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next

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Steffen Klassert says:

====================
pull request (net-next): ipsec-next 2018-01-26

One last patch for this development cycle:

1) Add ESN support for IPSec HW offload.
   From Yossef Efraim.

Please pull or let me know if there are problems.
====================

Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
David S. Miller 2018-01-26 10:22:53 -05:00
commit a81e4affe1
5 changed files with 27 additions and 2 deletions
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11
net/xfrm/xfrm_device.c
View file

@ -147,8 +147,8 @@ int xfrm_dev_state_add(struct net *net, struct xfrm_state *x,
if (!x->type_offload)
return -EINVAL;
/* We don't yet support UDP encapsulation, TFC padding and ESN. */
if (x->encap || x->tfcpad || (x->props.flags & XFRM_STATE_ESN))
/* We don't yet support UDP encapsulation and TFC padding. */
if (x->encap || x->tfcpad)
return -EINVAL;
dev = dev_get_by_index(net, xuo->ifindex);
@ -178,6 +178,13 @@ int xfrm_dev_state_add(struct net *net, struct xfrm_state *x,
return 0;
}
if (x->props.flags & XFRM_STATE_ESN &&
!dev->xfrmdev_ops->xdo_dev_state_advance_esn) {
xso->dev = NULL;
dev_put(dev);
return -EINVAL;
}
xso->dev = dev;
xso->num_exthdrs = 1;
xso->flags = xuo->flags;

2
net/xfrm/xfrm_replay.c
View file

@ -551,6 +551,8 @@ static void xfrm_replay_advance_esn(struct xfrm_state *x, __be32 net_seq)
bitnr = replay_esn->replay_window - (diff - pos);
}
xfrm_dev_state_advance_esn(x);
nr = bitnr >> 5;
bitnr = bitnr & 0x1F;
replay_esn->bmp[nr] |= (1U << bitnr);