original files of m241

components/webcli-4.9/target/src/wrn/wm/backplane/wmbSNMPLib.c

@@ -0,0 +1,209 @@
+/* wmbSNMPLib.c - SNMP interface handler of WMB */
+
+/* Copyright 2002-2007 Wind River Systems, Inc. */
+
+#include "copyright_wrs.h"
+
+/*
+DESCRIPTION
+This file includes support for registering SNMP objects with the backplane and managing
+all aspects of the SNMP related functions, including portfolios
+*/
+
+/* includes */
+#include "wm.h"
+#include "wmb.h"
+#include "wmbSNMPLib.h"
+#ifdef ENVOY_STACK_K
+#include "wmmMethodRoutine.h"
+#endif
+
+#if defined __ENABLE_SNMP_RESOURCE_REGISTER__
+/* defines */
+
+/* typedefs */
+
+/* locals */
+static WMB_SNMP_ENTRY_T wmbEntry[WMB_MAX_SNMP_ENTRIES];
+static  int numTables = 0;
+
+
+/**************************************************************************
+*
+* wmbSNMPEntryLookup - Return the index of WMB_SNMP_ENTRY_T for a component
+*
+* RETURNS: index
+*
+*
+* NOMANUAL
+*/
+LOCAL sbyte2 wmbSNMPEntryLookup
+    (
+    WMB_CID_T   component          /* [in] Component ID            */
+    )
+    {
+    sbyte4  i;
+
+    for (i = 0; i < WMB_MAX_SNMP_ENTRIES; i++)
+        {
+        if (wmbEntry[i].component == component)
+            break;
+        }
+    return i;
+    }
+
+/**************************************************************************
+*
+* wmbSNMPResourceRegister - Register SNMP object
+*
+* RETURNS: ERROR, OK
+*
+*
+* NOMANUAL
+*/
+STATUS wmbSNMPResourceRegister
+    (
+    WMB_CID_T   component,          /* [in] Component ID            */
+    sbyte       *objName,           /* [in] Object name             */
+    ubyte4      *Id,                /* [in] OID                     */
+    ubyte2      oidLen,             /* [in] OID Len                 */
+    ubyte2      dataType,           /* [in] Data Type               */
+    ubyte2      accessRead,         /* [in] Read access value       */
+    ubyte2      accessWrite,        /* [in] Write access value      */
+    ubyte2      flags,              /* [in] Flags                   */
+    WMB_HANDLER_T wmbHandler        /* [in] Pointer to the WMB Handler function */
+    )
+    {
+    STATUS      rc = OK;
+    WMB_ENTRY_T *pEntry;
+    sbyte4      i;
+
+    if (accessWrite == -1)
+        flags |= DB_FLAG_READONLY_K;
+
+    i = wmbSNMPEntryLookup(component);
+
+    if (i == WMB_MAX_SNMP_ENTRIES)
+        return ERROR;
+
+    if (wmbEntry[i].numEntry == wmbEntry[i].maxEntry)
+        return ERROR;
+
+    pEntry = &(wmbEntry[i].pEntryArray[wmbEntry[i].numEntry]);
+
+    pEntry->accessRead = 0;
+    pEntry->accessWrite = 0;
+    pEntry->flags = flags | DB_FLAG_INSTANCE;
+    pEntry->handler = wmbHandler;
+    pEntry->localId = 0;
+    pEntry->pData = Id;
+    pEntry->pName = objName;
+    pEntry->pValid = NULL;
+    pEntry->sibling = 0;
+    pEntry->size   = oidLen;
+    pEntry->table  = 0;
+    pEntry->type   = dataType;
+
+#ifdef ENVOY_STACK_K
+    rc = wmmRegisterSNMPObject(objName, Id, oidLen / sizeof (ubyte4),
+                               dataType, accessRead, accessWrite, Id);
+#endif
+    if ( rc == OK )
+        wmbEntry[i].numEntry++;
+    else
+        bzero( (char *)pEntry, sizeof(WMB_ENTRY_T) );
+
+    return rc;
+    }
+/**************************************************************************
+*
+* wmbSNMPObjectEntryCreate - Allocate space for MIB Object entries
+*
+* RETURNS: ERROR, OK
+*
+*
+* NOMANUAL
+*/
+STATUS wmbSNMPObjectEntryCreate
+    (
+    WMB_CID_T   component,      /* [in] Component ID                        */
+    sbyte2      maxMIBObjects   /* [in] Number of Entries to allocate for   */
+    )
+    {
+    sbyte4  i;
+
+    if (numTables == WMB_MAX_SNMP_ENTRIES)
+        return wmError(ERROR_MEMMGR_NO_MEMORY, "wmbSNMPObjectEntryCreate: Access beyond wmbEntry array");
+
+    for (i = 0; i < WMB_MAX_SNMP_ENTRIES; i++)
+        {
+        if (wmbEntry[i].maxEntry == 0)
+            break;
+        }
+    wmbEntry[i].component   = component;
+    wmbEntry[i].numEntry    = 0;
+    wmbEntry[i].maxEntry    = maxMIBObjects;
+
+    /* Use Calloc to get zero'd memory */
+    wmbEntry[i].pEntryArray = wmCalloc(maxMIBObjects, sizeof(WMB_ENTRY_T));
+
+    if (wmbEntry[i].pEntryArray == NULL)
+        return wmError(ERROR_MEMMGR_NO_MEMORY, "wmbSNMPObjectEntryCreate");
+
+    return OK;
+    }
+
+/**************************************************************************
+*
+* wmbSNMPObjectEntryDelete - Delete MIB Object entries for the component
+*
+* RETURNS: N/A
+*
+*
+* NOMANUAL
+*/
+void wmbSNMPObjectEntryDelete
+    (
+    WMB_CID_T   component       /* [in] Component ID                        */
+    )
+    {
+    sbyte4  i;
+
+    i = wmbSNMPEntryLookup(component);
+    if (i == WMB_MAX_SNMP_ENTRIES)
+        return;
+
+    wmbEntry[i].maxEntry = 0;
+    wmbEntry[i].component = NULL;
+    wmbEntry[i].numEntry = 0;
+    wmFree(wmbEntry[i].pEntryArray);
+
+    }
+
+/**************************************************************************
+*
+* wmbSNMPResourceArrayRegister - Registration of objects completed. WMB will be
+* updated.
+*
+* RETURNS: ERROR, OK
+*
+*
+* NOMANUAL
+*/
+STATUS wmbSNMPResourceArrayRegister
+    (
+    WMB_CID_T    component,         /* [in] Component ID            */
+    sbyte       *path,              /* [in] Path of the component   */
+    WMB_HANDLER_T wmbHandler        /* [in] Pointer to the WMB Handler function */
+    )
+    {
+    sbyte4      i;
+
+    i = wmbSNMPEntryLookup(component);
+    if (i == WMB_MAX_SNMP_ENTRIES)
+        return ERROR;
+
+    return wmbResourceRegister(wmbComponentNameGet(component), path, wmbEntry[i].pEntryArray,
+                    wmbEntry[i].numEntry, NULL, 0, wmbHandler);
+    }
+#endif /* __ENABLE_SNMP_RESOURCE_REGISTER__ */