original files of m241

components/ip_net2-6.9/ipnet2/src/ipnet_pkt_queue_null.c

@@ -0,0 +1,246 @@
+/*
+ ******************************************************************************
+ *                     INTERPEAK SOURCE FILE
+ *
+ *   Document no: @(#) $Name: VXWORKS_ITER40_2019102207 $ $RCSfile: ipnet_pkt_queue_null.c,v $ $Revision: 1.4 $
+ *   $Source: /home/interpeak/CVSRoot/ipnet2/src/ipnet_pkt_queue_null.c,v $
+ *   $Author: kenneth $
+ *   $State: Exp $ $Locker:  $
+ *
+ *   INTERPEAK_COPYRIGHT_STRING
+ *   Design and implementation by Kenneth Jonsson <kenneth@interpeak.se>
+ ******************************************************************************
+ */
+
+
+/*
+ ****************************************************************************
+ * 1                    DESCRIPTION
+ ****************************************************************************
+ */
+/* Black hole queue that is used to drop packets silently */
+
+/*
+ ****************************************************************************
+ * 2                    CONFIGURATION
+ ****************************************************************************
+ */
+
+#ifndef IPCOM_KERNEL
+#define IPCOM_KERNEL
+#endif
+#include "ipnet_config.h"
+
+
+/*
+ ****************************************************************************
+ * 3                    INCLUDE FILES
+ ****************************************************************************
+ */
+
+#ifdef IPNET_USE_IFO_NULL
+
+#define IPCOM_USE_CLIB_PROTO
+#include <ipcom_pkt.h>
+
+#include "ipnet_pkt_queue.h"
+
+/*
+ ****************************************************************************
+ * 4                    DEFINES
+ ****************************************************************************
+ */
+
+
+/*
+ ****************************************************************************
+ * 5                    TYPES
+ ****************************************************************************
+ */
+
+/*
+ ****************************************************************************
+ * 6                    EXTERN PROTOTYPES
+ ****************************************************************************
+ */
+
+/*
+ ****************************************************************************
+ * 7                    LOCAL PROTOTYPES
+ ****************************************************************************
+ */
+
+/*
+ ****************************************************************************
+ * 8                    DATA
+ ****************************************************************************
+ */
+
+/*
+ ****************************************************************************
+ * 9                    STATIC FUNCTIONS
+ ****************************************************************************
+ */
+
+/*
+ *===========================================================================
+ *                      ipnet_pkt_queue_null_enqueue
+ *===========================================================================
+ * Description: Inserts a packet into the queue.
+ * Parameters:  null - A NULL queue.
+ *              pkt - The packet to store.
+ * Returns:     0  = success
+ *              <0 = error code
+ *
+ */
+IP_STATIC int
+ipnet_pkt_queue_null_enqueue(Ipnet_pkt_queue *null,
+                             Ipcom_pkt *pkt)
+{
+    (void) null;
+    ipcom_pkt_free(pkt);
+    return 0;
+}
+
+
+/*
+ *===========================================================================
+ *                      ipnet_pkt_queue_null_dequeue
+ *===========================================================================
+ * Description: Removed a packet from the queue.
+ * Parameters:  null - A NULL queue.
+ * Returns:     IP_NULL since this queue is always empty.
+ *
+ */
+IP_STATIC Ipcom_pkt *
+ipnet_pkt_queue_null_dequeue(Ipnet_pkt_queue *null)
+{
+    (void) null;
+    return IP_NULL;
+}
+
+
+/*
+ *===========================================================================
+ *                      ipnet_pkt_queue_null_count
+ *===========================================================================
+ * Description: Returns the number of packets that is currently queued.
+ * Parameters:  null - A NULL queue.
+ * Returns:
+ *
+ */
+IP_STATIC int
+ipnet_pkt_queue_null_count(Ipnet_pkt_queue *null)
+{
+    (void) null;
+    return 0;
+}
+
+
+/*
+ *===========================================================================
+ *                      ipnet_pkt_queue_null_dump
+ *===========================================================================
+ * Description: Dumps the configuration to the supplied buffer.
+ * Parameters:  q - A packet queue.
+ *              ifq - The buffer where the data should be dumped.
+ * Returns:
+ *
+ */
+IP_STATIC void
+ipnet_pkt_queue_null_dump(Ipnet_pkt_queue *q, struct Ipnet_ifqueue *ifq)
+{
+    (void) q;
+    (void) ifq;
+}
+
+
+/*
+ *===========================================================================
+ *                      ipnet_pkt_queue_null_configure
+ *===========================================================================
+ * Description: Configures a queue with new parameters.
+ * Parameters:  q - A packet queue.
+ *              ifq - The queue parameters.
+ * Returns:     0  = success
+ *              <0 = error code
+ */
+IP_STATIC int
+ipnet_pkt_queue_null_configure(Ipnet_pkt_queue *q, struct Ipnet_ifqueue *ifq)
+{
+    (void) q;
+    (void) ifq;
+    return 0;
+}
+
+
+/*
+ *===========================================================================
+ *                      ipnet_pkt_queue_null_init
+ *===========================================================================
+ * Description: Configures a queue with new parameters.
+ * Parameters:  q - A packet queue.
+ * Returns:
+ *
+ */
+IP_STATIC int
+ipnet_pkt_queue_null_init(Ipnet_pkt_queue *q)
+{
+    (void) q;
+    return 0;
+}
+
+
+/*
+ ****************************************************************************
+ * 10                   GLOBAL FUNCTIONS
+ ****************************************************************************
+ */
+
+/*
+ *===========================================================================
+ *                      ipnet_pkt_queue_null_template
+ *===========================================================================
+ * Description: Returns a template for NULL queue.
+ * Parameters:
+ * Returns:
+ *
+ */
+IP_GLOBAL Ipnet_pkt_queue *
+ipnet_pkt_queue_null_template()
+{
+    static Ipnet_pkt_queue null_template =
+        {
+            "null",
+            sizeof(Ipnet_pkt_queue),
+            IP_NULL, /* Not a container */
+            (Ipnet_pkt_queue_enqueue)   ipnet_pkt_queue_null_enqueue,
+            (Ipnet_pkt_queue_dequeue)   ipnet_pkt_queue_null_dequeue,
+            (Ipnet_pkt_queue_requeue)   ipnet_pkt_queue_null_enqueue,
+            (Ipnet_pkt_queue_count)     ipnet_pkt_queue_null_count,
+            IP_NULL,
+            (Ipnet_pkt_queue_dump)      ipnet_pkt_queue_null_dump,
+            (Ipnet_pkt_queue_configure) ipnet_pkt_queue_null_configure,
+            (Ipnet_pkt_queue_init)      ipnet_pkt_queue_null_init,
+            IP_NULL,
+        };
+    return &null_template;
+}
+
+
+/*
+ ****************************************************************************
+ * 11                   PUBLIC FUNCTIONS
+ ****************************************************************************
+ */
+
+#else
+int ipnet_pkt_queue_null_empty_file;
+#endif /* IPNET_USE_IFO_NULL */
+
+/*
+ ****************************************************************************
+ *                      END OF FILE
+ ****************************************************************************
+ */
+