diff --git a/include/net/xfrm.h b/include/net/xfrm.h index e0cc6791c001c293e43c1341fb9e0cc97da8a8fc..b39d24fa2ef08a0cb967a4a51af7fe8c51bbdbba 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -131,12 +131,19 @@ enum { XFRM_DEV_OFFLOAD_OUT, }; +enum { + XFRM_DEV_OFFLOAD_UNSPECIFIED, + XFRM_DEV_OFFLOAD_CRYPTO, + XFRM_DEV_OFFLOAD_PACKET, +}; + struct xfrm_dev_offload { struct net_device *dev; netdevice_tracker dev_tracker; struct net_device *real_dev; unsigned long offload_handle; u8 dir : 2; + u8 type : 2; }; struct xfrm_mode { diff --git a/include/uapi/linux/xfrm.h b/include/uapi/linux/xfrm.h index 4f84ea7ee14c902ee473a843af97b396009e0a04..23543c33fee823064d59b5fb958be11bcfed8f77 100644 --- a/include/uapi/linux/xfrm.h +++ b/include/uapi/linux/xfrm.h @@ -519,6 +519,12 @@ struct xfrm_user_offload { */ #define XFRM_OFFLOAD_IPV6 1 #define XFRM_OFFLOAD_INBOUND 2 +/* Two bits above are relevant for state path only, while + * offload is used for both policy and state flows. + * + * In policy offload mode, they are free and can be safely reused. + */ +#define XFRM_OFFLOAD_PACKET 4 struct xfrm_userpolicy_default { #define XFRM_USERPOLICY_UNSPEC 0 diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c index 21269e8f2db4b6e6d47840d6d8e5c0cd5f75f41d..3b0c1ca8d4bb6ad295f07e7dbca49674559aab22 100644 --- a/net/xfrm/xfrm_device.c +++ b/net/xfrm/xfrm_device.c @@ -291,12 +291,15 @@ int xfrm_dev_state_add(struct net *net, struct xfrm_state *x, else xso->dir = XFRM_DEV_OFFLOAD_OUT; + xso->type = XFRM_DEV_OFFLOAD_CRYPTO; + err = dev->xfrmdev_ops->xdo_dev_state_add(x); if (err) { xso->dev = NULL; xso->dir = 0; xso->real_dev = NULL; netdev_put(dev, &xso->dev_tracker); + xso->type = XFRM_DEV_OFFLOAD_UNSPECIFIED; if (err != -EOPNOTSUPP) { NL_SET_ERR_MSG(extack, "Device failed to offload this state"); diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 0eb4696661c80b937df18c5a916093809c29bc62..c3b8c15327188c8106a3eb42e7aa4c78c8e9e589 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -956,6 +956,8 @@ static int copy_user_offload(struct xfrm_dev_offload *xso, struct sk_buff *skb) xuo->ifindex = xso->dev->ifindex; if (xso->dir == XFRM_DEV_OFFLOAD_IN) xuo->flags = XFRM_OFFLOAD_INBOUND; + if (xso->type == XFRM_DEV_OFFLOAD_PACKET) + xuo->flags |= XFRM_OFFLOAD_PACKET; return 0; }