added the rpx_sessions counter

client-ctl.go

@@ -111,6 +111,7 @@ type json_out_client_stats struct {
 	ClientPeers int64 `json:"client-peers"`
 	ClientPtySessions int64 `json:"client-pty-sessions"`
 	ClientRptySessions int64 `json:"client-rpty-sessions"`
+	ClientRpxSessions int64 `json:"client-rpx-sessions"`
 }
 // ------------------------------------
 
@@ -1140,6 +1141,7 @@ func (ctl *client_ctl_stats) ServeHTTP(w http.ResponseWriter, req *http.Request)
 			stats.ClientPeers = c.stats.peers.Load()
 			stats.ClientPtySessions = c.stats.pty_sessions.Load()
 			stats.ClientRptySessions = c.stats.rpty_sessions.Load()
+			stats.ClientRpxSessions = c.stats.rpx_sessions.Load()
 			status_code = WriteJsonRespHeader(w, http.StatusOK)
 			if err = je.Encode(stats); err != nil { goto oops }
 

client-metrics.go

@@ -12,6 +12,7 @@ type ClientCollector struct {
 	ClientPeers      *prometheus.Desc
 	PtySessions      *prometheus.Desc
 	RptySessions     *prometheus.Desc
+	RpxSessions      *prometheus.Desc
 }
 
 // NewClientCollector returns a new ClientCollector with all prometheus.Desc initialized
@@ -58,6 +59,11 @@ func NewClientCollector(client *Client) ClientCollector {
 			"Number of rpty sessions",
 			nil, nil,
 		),
+		RpxSessions: prometheus.NewDesc(
+			prefix + "rpx_sessions",
+			"Number of rpx sessions",
+			nil, nil,
+		),
 	}
 }
 
@@ -68,6 +74,7 @@ func (c ClientCollector) Describe(ch chan<- *prometheus.Desc) {
 	ch <- c.ClientPeers
 	ch <- c.PtySessions
 	ch <- c.RptySessions
+	ch <- c.RpxSessions
 }
 
 func (c ClientCollector) Collect(ch chan<- prometheus.Metric) {
@@ -110,4 +117,10 @@ func (c ClientCollector) Collect(ch chan<- prometheus.Metric) {
 		prometheus.GaugeValue,
 		float64(c.client.stats.rpty_sessions.Load()),
 	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.RpxSessions,
+		prometheus.GaugeValue,
+		float64(c.client.stats.rpx_sessions.Load()),
+	)
 }

client.go

@@ -167,6 +167,7 @@ type Client struct {
 		peers atomic.Int64
 		pty_sessions atomic.Int64
 		rpty_sessions atomic.Int64
+		rpx_sessions atomic.Int64
 	}
 
 	pty_user string
@@ -1892,6 +1893,7 @@ done:
 	cts.rpx_mtx.Lock()
 	delete(cts.rpx_map, crpx.id)
 	cts.rpx_mtx.Unlock()
+	cts.C.stats.rpx_sessions.Add(-1)
 }
 
 func (cts *ClientConn) StartRpx(id uint64, data []byte, wg *sync.WaitGroup) error {
@@ -1914,6 +1916,7 @@ func (cts *ClientConn) StartRpx(id uint64, data []byte, wg *sync.WaitGroup) erro
 	crpx.ctx, crpx.cancel = context.WithCancel(cts.C.Ctx)
 
 	cts.rpx_mtx.Unlock()
+	cts.C.stats.rpx_sessions.Add(1)
 
 	wg.Add(1)
 	go cts.RpxLoop(crpx, data, wg)
@@ -2262,6 +2265,7 @@ func NewClient(ctx context.Context, name string, logger Logger, cfg *ClientConfi
 	c.stats.peers.Store(0)
 	c.stats.pty_sessions.Store(0)
 	c.stats.rpty_sessions.Store(0)
+	c.stats.rpx_sessions.Store(0)
 
 	return &c
 }

server-ctl.go

@@ -78,6 +78,7 @@ type json_out_server_stats struct {
 	SshProxySessions int64 `json:"pxy-ssh-sessions"`
     ServerPtySessions int64 `json:"server-pty-sessions"`
 	ServerRptySessions int64 `json:"server-rpty-sessions"`
+	ServerRpxSessions int64 `json:"server-rpx-sessions"`
 }
 
 // this is a more specialized variant of json_in_notice
@@ -923,6 +924,7 @@ func (ctl *server_ctl_stats) ServeHTTP(w http.ResponseWriter, req *http.Request)
 			stats.SshProxySessions = s.stats.ssh_proxy_sessions.Load()
 			stats.ServerPtySessions = s.stats.pty_sessions.Load()
 			stats.ServerRptySessions = s.stats.rpty_sessions.Load()
+			stats.ServerRpxSessions = s.stats.rpx_sessions.Load()
 			status_code = WriteJsonRespHeader(w, http.StatusOK)
 			if err = je.Encode(stats); err != nil { goto oops }
 

server-metrics.go

@@ -13,6 +13,7 @@ type ServerCollector struct {
 	SshProxySessions *prometheus.Desc
 	PtySessions      *prometheus.Desc
 	RptySessions     *prometheus.Desc
+	RpxSessions      *prometheus.Desc
 }
 
 // NewServerCollector returns a new ServerCollector with all prometheus.Desc initialized
@@ -64,6 +65,11 @@ func NewServerCollector(server *Server) ServerCollector {
 			"Number of rpty session",
 			nil, nil,
 		),
+		RpxSessions: prometheus.NewDesc(
+			prefix + "rpx_sessions",
+			"Number of rpx session",
+			nil, nil,
+		),
 	}
 }
 
@@ -75,6 +81,7 @@ func (c ServerCollector) Describe(ch chan<- *prometheus.Desc) {
 	ch <- c.SshProxySessions
 	ch <- c.PtySessions
 	ch <- c.RptySessions
+	ch <- c.RpxSessions
 }
 
 func (c ServerCollector) Collect(ch chan<- prometheus.Metric) {
@@ -123,4 +130,10 @@ func (c ServerCollector) Collect(ch chan<- prometheus.Metric) {
 		prometheus.GaugeValue,
 		float64(c.server.stats.rpty_sessions.Load()),
 	)
+
+	ch <- prometheus.MustNewConstMetric(
+		c.RpxSessions,
+		prometheus.GaugeValue,
+		float64(c.server.stats.rpx_sessions.Load()),
+	)
 }

server-rpx.go

@@ -211,6 +211,7 @@ func (rpx *server_rpx) alloc_server_rpx(cts *ServerConn, req *http.Request) (*Se
 	cts.rpx_map[assigned_id] = srpx
 
 	cts.rpx_mtx.Unlock()
+	cts.S.stats.rpx_sessions.Add(1)
 	return srpx, nil
 }
 
@@ -247,6 +248,7 @@ func (rpx *server_rpx) ServeHTTP(w http.ResponseWriter, req *http.Request) (int,
 		cts.rpx_mtx.Lock()
 		delete(cts.rpx_map, srpx.id)
 		cts.rpx_mtx.Unlock()
+		cts.S.stats.rpx_sessions.Add(-1)
 	}()
 
 	ws_upgrade = strings.EqualFold(req.Header.Get("Upgrade"), "websocket") && strings.Contains(strings.ToLower(req.Header.Get("Connection")), "upgrade");

server.go

@@ -172,6 +172,7 @@ type Server struct {
 		ssh_proxy_sessions atomic.Int64
 		pty_sessions atomic.Int64
 		rpty_sessions atomic.Int64
+		rpx_sessions atomic.Int64
 	}
 
 	wpx_resp_tf     ServerWpxResponseTransformer
@@ -1902,6 +1903,7 @@ func NewServer(ctx context.Context, name string, logger Logger, cfg *ServerConfi
 	s.stats.ssh_proxy_sessions.Store(0)
 	s.stats.pty_sessions.Store(0)
 	s.stats.rpty_sessions.Store(0)
+	s.stats.rpx_sessions.Store(0)
 
 	return &s, nil