Implement minimalistic L2TP sessions statistics and correct man page

for L2TP tunnel statistics (which do not take an argument sessionID).

Reviewed by:	archie
Approved by:	pjd (mentor)

1 files changed, 14 insertions, 4 deletions

diff --git a/share/man/man4/ng_l2tp.4 b/share/man/man4/ng_l2tp.4
index a54cd3a..f45484f 100644
--- a/share/man/man4/ng_l2tp.4
+++ b/share/man/man4/ng_l2tp.4
@@ -261,17 +261,27 @@ the current configuration for the corresponding data session as a
 .Vt "struct ng_l2tp_sess_config" .
 The corresponding session hook must be connected.
 .It Dv NGM_L2TP_GET_STATS
-This command takes a two byte session ID as an argument and returns a
+This command returns a
 .Vt "struct ng_l2tp_stats"
+containing statistics of the L2TP tunnel.
+.It Dv NGM_L2TP_CLR_STATS
+This command clears the statistics for the L2TP tunnel.
+.It Dv NGM_L2TP_GETCLR_STATS
+Same as
+.Dv NGM_L2TP_GET_STATS ,
+but also atomically clears the statistics as well.
+.It Dv NGM_L2TP_GET_SESSION_STATS
+This command takes a two byte session ID as an argument and returns a
+.Vt "struct ng_l2tp_session_stats"
 containing statistics for the corresponding data session.
 The corresponding session hook must be connected.
-.It Dv NGM_L2TP_CLR_STATS
+.It Dv NGM_L2TP_CLR_SESSION_STATS
 This command takes a two byte session ID as an argument and
 clears the statistics for that data session.
 The corresponding session hook must be connected.
-.It Dv NGM_L2TP_GETCLR_STATS
+.It Dv NGM_L2TP_GETCLR_SESSION_STATS
 Same as
-.Dv NGM_L2TP_GET_STATS ,
+.Dv NGM_L2TP_GET_SESSION_STATS ,
 but also atomically clears the statistics as well.
 .It Dv NGM_L2TP_SET_SEQ
 This command sets the sequence numbers of a not yet enabled node.