Commit 6fb7f940 authored by Leon Romanovsky's avatar Leon Romanovsky Committed by Saeed Mahameed
Browse files

net/mlx5e: Connect mlx5 IPsec statistics with XFRM core 



Fill integrity, replay and bad trailer counters.

As an example, after simulating replay window attack with 5 packets:
[leonro@c ~]$ grep XfrmInStateSeqError /proc/net/xfrm_stat
XfrmInStateSeqError     	5
[leonro@c ~]$ sudo ip -s x s
<...>
	stats:
	  replay-window 0 replay 5 failed 0

Signed-off-by: default avatarLeon Romanovsky <leonro@nvidia.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@nvidia.com>
parent f9f221c9

drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c

+20 −2
Original line number Diff line number Diff line
@@ -988,19 +988,37 @@ static void mlx5e_xfrm_update_stats(struct xfrm_state *x) 
{

	struct mlx5e_ipsec_sa_entry *sa_entry = to_ipsec_sa_entry(x);

	struct mlx5e_ipsec_rule *ipsec_rule = &sa_entry->ipsec_rule;

	struct net *net = dev_net(x->xso.dev);

	u64 packets, bytes, lastuse;



	lockdep_assert(lockdep_is_held(&x->lock) ||

		       lockdep_is_held(&dev_net(x->xso.real_dev)->xfrm.xfrm_cfg_mutex) ||

		       lockdep_is_held(&dev_net(x->xso.real_dev)->xfrm.xfrm_state_lock));



	if (x->xso.flags & XFRM_DEV_OFFLOAD_FLAG_ACQ ||

	    x->xso.type != XFRM_DEV_OFFLOAD_PACKET)

	if (x->xso.flags & XFRM_DEV_OFFLOAD_FLAG_ACQ)

		return;



	if (sa_entry->attrs.dir == XFRM_DEV_OFFLOAD_IN) {

		mlx5_fc_query_cached(ipsec_rule->auth.fc, &bytes, &packets, &lastuse);

		x->stats.integrity_failed += packets;

		XFRM_ADD_STATS(net, LINUX_MIB_XFRMINSTATEPROTOERROR, packets);



		mlx5_fc_query_cached(ipsec_rule->trailer.fc, &bytes, &packets, &lastuse);

		XFRM_ADD_STATS(net, LINUX_MIB_XFRMINHDRERROR, packets);

	}



	if (x->xso.type != XFRM_DEV_OFFLOAD_PACKET)

		return;



	mlx5_fc_query_cached(ipsec_rule->fc, &bytes, &packets, &lastuse);

	x->curlft.packets += packets;

	x->curlft.bytes += bytes;



	if (sa_entry->attrs.dir == XFRM_DEV_OFFLOAD_IN) {

		mlx5_fc_query_cached(ipsec_rule->replay.fc, &bytes, &packets, &lastuse);

		x->stats.replay += packets;

		XFRM_ADD_STATS(net, LINUX_MIB_XFRMINSTATESEQERROR, packets);

	}

}



static int mlx5e_xfrm_validate_policy(struct mlx5_core_dev *mdev,