ipcidrroutetable.c

snmp的源代码,已经在我的ubuntu下编译通过

         * If the index can not be created under the present circumstances
         * (even though it could be created under other circumstances),
         * return MFD_NOT_NOW.
         */
        if (0) {
            return MFD_CANNOT_CREATE_EVER;
        } else {
            return MFD_CANNOT_CREATE_NOW;
        }
    }

    return rc;
}                               /* ipCidrRouteTable_validate_index */

/**
 * Setup up context with information needed to undo a set request.
 *
 * This function will be called before the individual node undo setup
 * functions are called. If you need to do any undo setup that is not
 * related to a specific column, you can do it here.
 *
 * Note that an individual node's undo_setup function will only be called
 * if that node is being set to a new value.
 *
 * If there is any setup specific to a particular column (e.g. allocating
 * memory for a string), you should do that setup in the node's undo_setup
 * function, so it won't be done unless it is necessary.
 *
 * @param rowreq_ctx
 *        Pointer to the table context (ipCidrRouteTable_rowreq_ctx)
 *
 * @retval MFD_SUCCESS : success
 * @retval MFD_ERROR   : error. set will fail.
 */
int
ipCidrRouteTable_undo_setup(ipCidrRouteTable_rowreq_ctx * rowreq_ctx)
{
    int             rc = MFD_SUCCESS;

    DEBUGMSGTL(("verbose:ipCidrRouteTable:ipCidrRouteTable_undo_setup",
                "called\n"));

    /** we should have a non-NULL pointer */
    netsnmp_assert(NULL != rowreq_ctx);

    /*
     * TODO:451:M: |-> Setup ipCidrRouteTable undo.
     * set up ipCidrRouteTable undo information, in preparation for a set.
     */

    return rc;
}                               /* ipCidrRouteTable_undo_setup */

/**
 * Cleanup up context undo information.
 *
 * This function will be called after set/commit processing. If you
 * allocated any resources in undo_setup, this is the place to release
 * those resources.
 *
 * This function is called regardless of the success or failure of the set
 * request. If you need to perform different steps for cleanup depending
 * on success or failure, you can add a flag to the rowreq_ctx.
 *
 * @param rowreq_ctx
 *        Pointer to the table context (ipCidrRouteTable_rowreq_ctx)
 *
 * @retval MFD_SUCCESS : success
 * @retval MFD_ERROR   : error
 */
int
ipCidrRouteTable_undo_cleanup(ipCidrRouteTable_rowreq_ctx * rowreq_ctx)
{
    int             rc = MFD_SUCCESS;

    DEBUGMSGTL(("verbose:ipCidrRouteTable:ipCidrRouteTable_undo_cleanup",
                "called\n"));

    /** we should have a non-NULL pointer */
    netsnmp_assert(NULL != rowreq_ctx);

    /*
     * TODO:452:M: |-> Cleanup ipCidrRouteTable undo.
     */

    return rc;
}                               /* ipCidrRouteTable_undo_cleanup */

/**
 * commit new values.
 *
 * At this point, you should have done everything you can to ensure that
 * this commit will not fail.
 *
 * Should you need different behavior depending on which columns were
 * set, rowreq_ctx->column_set_flags will indicate which writeable columns were
 * set. The definitions for the FLAG_* bits can be found in
 * ipCidrRouteTable.h.
 * A new row will have the MFD_ROW_CREATED bit set in rowreq_flags.
 *
 * @param ipCidrRouteTable_rowreq_ctx
 *        Pointer to the users context.
 *
 * @retval MFD_SUCCESS : success
 * @retval MFD_ERROR   : error
 */
int
ipCidrRouteTable_commit(ipCidrRouteTable_rowreq_ctx * rowreq_ctx)
{
    int             rc = MFD_SUCCESS;
    int             save_flags;

    DEBUGMSGTL(("verbose:ipCidrRouteTable:ipCidrRouteTable_commit",
                "called\n"));

    /** we should have a non-NULL pointer */
    netsnmp_assert(NULL != rowreq_ctx);

    /*
     * save flags, then clear until we actually do something
     */
    save_flags = rowreq_ctx->column_set_flags;
    rowreq_ctx->column_set_flags = 0;

    /*
     * commit ipCidrRouteTable data
     * 1) check the column's flag in save_flags to see if it was set.
     * 2) clear the flag when you handle that column
     * 3) set the column's flag in column_set_flags if it needs undo
     *    processing in case of a failure.
     */
    if (save_flags & FLAG_IPCIDRROUTEIFINDEX) {
        save_flags &= ~FLAG_IPCIDRROUTEIFINDEX; /* clear ipCidrRouteIfIndex */
        /*
         * TODO:482:o: |-> commit column ipCidrRouteIfIndex.
         */
        rc = -1;
        if (-1 == rc) {
            snmp_log(LOG_ERR,
                     "ipCidrRouteTable column ipCidrRouteIfIndex commit failed\n");
        } else {
            /*
             * set flag, in case we need to undo ipCidrRouteIfIndex
             */
            rowreq_ctx->column_set_flags |= FLAG_IPCIDRROUTEIFINDEX;
        }
    }

    if (save_flags & FLAG_IPCIDRROUTETYPE) {
        save_flags &= ~FLAG_IPCIDRROUTETYPE;    /* clear ipCidrRouteType */
        /*
         * TODO:482:o: |-> commit column ipCidrRouteType.
         */
        rc = -1;
        if (-1 == rc) {
            snmp_log(LOG_ERR,
                     "ipCidrRouteTable column ipCidrRouteType commit failed\n");
        } else {
            /*
             * set flag, in case we need to undo ipCidrRouteType
             */
            rowreq_ctx->column_set_flags |= FLAG_IPCIDRROUTETYPE;
        }
    }

    if (save_flags & FLAG_IPCIDRROUTEINFO) {
        save_flags &= ~FLAG_IPCIDRROUTEINFO;    /* clear ipCidrRouteInfo */
        /*
         * TODO:482:o: |-> commit column ipCidrRouteInfo.
         */
        rc = -1;
        if (-1 == rc) {
            snmp_log(LOG_ERR,
                     "ipCidrRouteTable column ipCidrRouteInfo commit failed\n");
        } else {
            /*
             * set flag, in case we need to undo ipCidrRouteInfo
             */
            rowreq_ctx->column_set_flags |= FLAG_IPCIDRROUTEINFO;
        }
    }

    if (save_flags & FLAG_IPCIDRROUTENEXTHOPAS) {
        save_flags &= ~FLAG_IPCIDRROUTENEXTHOPAS;       /* clear ipCidrRouteNextHopAS */
        /*
         * TODO:482:o: |-> commit column ipCidrRouteNextHopAS.
         */
        rc = -1;
        if (-1 == rc) {
            snmp_log(LOG_ERR,
                     "ipCidrRouteTable column ipCidrRouteNextHopAS commit failed\n");
        } else {
            /*
             * set flag, in case we need to undo ipCidrRouteNextHopAS
             */
            rowreq_ctx->column_set_flags |= FLAG_IPCIDRROUTENEXTHOPAS;
        }
    }

    if (save_flags & FLAG_IPCIDRROUTEMETRIC1) {
        save_flags &= ~FLAG_IPCIDRROUTEMETRIC1; /* clear ipCidrRouteMetric1 */
        /*
         * TODO:482:o: |-> commit column ipCidrRouteMetric1.
         */
        rc = -1;
        if (-1 == rc) {
            snmp_log(LOG_ERR,
                     "ipCidrRouteTable column ipCidrRouteMetric1 commit failed\n");
        } else {
            /*
             * set flag, in case we need to undo ipCidrRouteMetric1
             */
            rowreq_ctx->column_set_flags |= FLAG_IPCIDRROUTEMETRIC1;
        }
    }

    if (save_flags & FLAG_IPCIDRROUTEMETRIC2) {
        save_flags &= ~FLAG_IPCIDRROUTEMETRIC2; /* clear ipCidrRouteMetric2 */
        /*
         * TODO:482:o: |-> commit column ipCidrRouteMetric2.
         */
        rc = -1;
        if (-1 == rc) {
            snmp_log(LOG_ERR,
                     "ipCidrRouteTable column ipCidrRouteMetric2 commit failed\n");
        } else {
            /*
             * set flag, in case we need to undo ipCidrRouteMetric2
             */
            rowreq_ctx->column_set_flags |= FLAG_IPCIDRROUTEMETRIC2;
        }
    }

    if (save_flags & FLAG_IPCIDRROUTEMETRIC3) {
        save_flags &= ~FLAG_IPCIDRROUTEMETRIC3; /* clear ipCidrRouteMetric3 */
        /*
         * TODO:482:o: |-> commit column ipCidrRouteMetric3.
         */
        rc = -1;
        if (-1 == rc) {
            snmp_log(LOG_ERR,
                     "ipCidrRouteTable column ipCidrRouteMetric3 commit failed\n");
        } else {
            /*
             * set flag, in case we need to undo ipCidrRouteMetric3
             */
            rowreq_ctx->column_set_flags |= FLAG_IPCIDRROUTEMETRIC3;
        }
    }

    if (save_flags & FLAG_IPCIDRROUTEMETRIC4) {
        save_flags &= ~FLAG_IPCIDRROUTEMETRIC4; /* clear ipCidrRouteMetric4 */
        /*
         * TODO:482:o: |-> commit column ipCidrRouteMetric4.
         */
        rc = -1;
        if (-1 == rc) {
            snmp_log(LOG_ERR,
                     "ipCidrRouteTable column ipCidrRouteMetric4 commit failed\n");
        } else {
            /*
             * set flag, in case we need to undo ipCidrRouteMetric4
             */
            rowreq_ctx->column_set_flags |= FLAG_IPCIDRROUTEMETRIC4;
        }
    }

    if (save_flags & FLAG_IPCIDRROUTEMETRIC5) {
        save_flags &= ~FLAG_IPCIDRROUTEMETRIC5; /* clear ipCidrRouteMetric5 */
        /*
         * TODO:482:o: |-> commit column ipCidrRouteMetric5.
         */
        rc = -1;
        if (-1 == rc) {
            snmp_log(LOG_ERR,
                     "ipCidrRouteTable column ipCidrRouteMetric5 commit failed\n");
        } else {
            /*
             * set flag, in case we need to undo ipCidrRouteMetric5
             */
            rowreq_ctx->column_set_flags |= FLAG_IPCIDRROUTEMETRIC5;
        }
    }

    if (save_flags & FLAG_IPCIDRROUTESTATUS) {
        save_flags &= ~FLAG_IPCIDRROUTESTATUS;  /* clear ipCidrRouteStatus */
        /*
         * TODO:482:o: |-> commit column ipCidrRouteStatus.
         */
        rc = -1;
        if (-1 == rc) {
            snmp_log(LOG_ERR,
                     "ipCidrRouteTable column ipCidrRouteStatus commit failed\n");
        } else {
            /*
             * set flag, in case we need to undo ipCidrRouteStatus
             */
            rowreq_ctx->column_set_flags |= FLAG_IPCIDRROUTESTATUS;
        }
    }

    if (save_flags) {
        snmp_log(LOG_ERR, "unhandled columns (0x%x) in commit\n",
                 save_flags);
        return MFD_ERROR;
    }

    return rc;
}                               /* ipCidrRouteTable_commit */

/**
 * undo commit new values.
 *
 * Should you need different behavior depending on which columns were
 * set, rowreq_ctx->column_set_flags will indicate which writeable columns were
 * set. The definitions for the FLAG_* bits can be found in
 * ipCidrRouteTable.h.
 * A new row will have the MFD_ROW_CREATED bit set in rowreq_flags.
 *
 * @param ipCidrRouteTable_rowreq_ctx
 *        Pointer to the users context.
 *
 * @retval MFD_SUCCESS : success
 * @retval MFD_ERROR   : error
 */
int
ipCidrRouteTable_undo_commit(ipCidrRouteTable_rowreq_ctx * rowreq_ctx)
{
    int             rc = MFD_SUCCESS;

    DEBUGMSGTL(("verbose:ipCidrRouteTable:ipCidrRouteTable_undo_commit",
                "called\n"));

    /** we should have a non-NULL pointer */
    netsnmp_assert(NULL != rowreq_ctx);

    /*
     * TODO:485:M: |-> Undo ipCidrRouteTable commit.
     * check the column's flag in rowreq_ctx->column_set_flags to see
     * if it was set during commit, then undo it.
     *
     * eg: if (rowreq_ctx->column_set_flags & FLAG_) {}
     */

    return rc;
}                               /* ipCidrRouteTable_undo_commit */

/*
 * TODO:420:r: Implement ipCidrRouteTable index validation.
 */
/*---------------------------------------------------------------------
 * IP-FORWARD-MIB::ipCidrRouteEntry.ipCidrRouteDest
 * ipCidrRouteDest is subid 1 of ipCidrRouteEntry.
 * Its status is Deprecated, and its access level is ReadOnly.
 * OID: .1.3.6.1.2.1.4.24.4.1.1
 * Description:
The destination IP address of this route. 

                This object may not take a Multicast (Class D) address 
                value. 

                Any assignment (implicit or otherwise) of an instance  
                of this object to a value x must be rejected if the  
                bitwise logical-AND of x with the value of the  
                corresponding instance of the ipCidrRouteMask object is  
                not equal to x.
 *
 * Attributes:
 *   accessible 1     isscalar 0     enums  0      hasdefval 0
 *   readable   1     iscolumn 1     ranges 0      hashint   0
 *   settable   0
 *
 *
 * Its syntax is IPADDR (based on perltype IPADDR)
 * The net-snmp type is ASN_IPADDRESS. The C type decl is u_long (u_long)
 */
/**
 * check validity of ipCidrRouteDest index portion
 *
 * @retval MFD_SUCCESS   : the incoming value is legal