Add logging of connect/disconnect times

on connection, client IP and name are passed from xrdp to sesman to
sesexec, and then back to sesman again.

xrdp-sesadmin can now access the connection data from sesman

sesman/sesexec/ercp_server.c

@@ -72,8 +72,10 @@ handle_connect_session_request(struct trans *self)
 {
     int scp_fd = -1;
     unsigned int scp_flags;
-
-    int rv = ercp_get_connect_session_request(self, &scp_fd, &scp_flags);
+    const char *client_ip;
+    const char *client_name;
+    int rv = ercp_get_connect_session_request(self, &scp_fd, &client_ip,
+             &client_name, &scp_flags);
     if (rv == 0)
     {
         struct trans *scp_trans;
@@ -107,10 +109,20 @@ handle_connect_session_request(struct trans *self)
             scp_status = get_session_fds(g_session_data, scp_flags,
                                          &display_fd, &chan_fd);
 
-            // Tell sesman about the new client connection
-            if (g_ecp_trans != NULL)
+            if (scp_status == E_SCP_SCONNECT_OK)
             {
-                /// TODO: client connect event
+                // Tell sesman about the new client connection
+                strlcpy(g_client_ip, client_ip, sizeof(g_client_ip));
+                strlcpy(g_client_name, client_name, sizeof(g_client_name));
+                g_last_connect_disconnect = time(NULL);
+
+                if (g_ecp_trans != NULL)
+                {
+                    (void)ercp_send_client_connect_event(
+                        g_ecp_trans, g_client_ip, g_client_name,
+                        g_last_connect_disconnect);
+
+                }
             }
 
             // Pass the session file descriptors to the client

sesman/sesexec/sesexec.c

@@ -74,6 +74,9 @@ pid_t g_pid;
 
 struct trans *g_ecp_trans;
 struct trans *g_ccp_trans;
+char g_client_ip[MAX_PEER_ADDRSTRLEN];
+char g_client_name[INFO_CLIENT_NAME_BYTES_UTF8];
+time_t g_last_connect_disconnect;
 
 /*
  * Module-scope globals
@@ -486,7 +489,17 @@ sesexec_main_loop(void)
                     // xrdp has gone away.
                     LOG(LOG_LEVEL_INFO, "sesexec_main_loop: "
                         "xrdp has exited");
-                    // TODO: Tell sesman xrdp has exited
+
+                    g_client_ip[0] = '\0';
+                    g_client_name[0] = '\0';
+                    g_last_connect_disconnect = time(NULL);
+
+                    if (g_ecp_trans != NULL)
+                    {
+                        (void)ercp_send_client_disconnect_event(
+                            g_ecp_trans, g_last_connect_disconnect);
+
+                    }
                     close_ccp_trans();
                 }
                 else

sesman/sesexec/sesexec.h

@@ -30,6 +30,7 @@
 #include <sys/types.h>
 
 #include "ccp_application_types.h"
+#include "xrdp_constants.h"
 
 struct config_sesman;
 struct trans;
@@ -106,6 +107,21 @@ extern struct trans *g_ecp_trans;
  */
 extern struct trans *g_ccp_trans;
 
+/**
+ * Last connected client IP address
+ */
+extern char g_client_ip[MAX_PEER_ADDRSTRLEN];
+
+/**
+ * Last connected client name
+ */
+extern char g_client_name[INFO_CLIENT_NAME_BYTES_UTF8];
+
+/**
+ * Last connect / disconnect time
+ */
+extern time_t g_last_connect_disconnect;
+
 /**
  * Callback to process incoming ERCP data
  */

sesman/sesexec/sesexec_discover.c

@@ -101,6 +101,20 @@ discover_trans_conn_in(struct trans *trans, struct trans *new_trans)
                 &sp->guid,
                 g_login_info->ip_addr,
                 session_get_start_time(g_session_data));
+
+            // Tell semsan about the last client connect or disconnect
+            if (g_ccp_trans != NULL)
+            {
+                (void)ercp_send_client_connect_event(new_trans,
+                                                     g_client_ip,
+                                                     g_client_name,
+                                                     g_last_connect_disconnect);
+            }
+            else
+            {
+                (void)ercp_send_client_disconnect_event(new_trans,
+                                                        g_last_connect_disconnect);
+            }
         }
     }
     return rv;