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: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
index 46cce4e38d8463b734ae220b096227f951e3d041..c54fd01ea635a2c0bcc585a69c7110b338ea972a 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
@@ -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,