113 lines
4.0 KiB
C
113 lines
4.0 KiB
C
/*
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* Copyright (c) 2014, Peter Haag
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* Copyright (c) 2011, Peter Haag
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of the author nor the names of its contributors may be
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* used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* $Author: peter $
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*
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* $Id: nfxstat.c 25 2011-02-26 13:22:31Z peter $
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*
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* $LastChangedRevision: 25 $
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*
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*/
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <unistd.h>
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#ifdef HAVE_STDINT_H
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#include <stdint.h>
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#endif
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#ifndef DEVEL
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# define dbg_printf(...) /* printf(__VA_ARGS__) */
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#else
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# define dbg_printf(...) printf(__VA_ARGS__)
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#endif
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#include "util.h"
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#include "nf_common.h"
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#include "nffile.h"
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#include "nfxstat.h"
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xstat_t *InitXStat(nffile_t *nffile) {
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xstat_t *xs;
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size_t block_size;
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// extended by the record link 2*data[4], but does no harm
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block_size = sizeof(xstat_t) + sizeof(data_block_header_t) + sizeof(flow_port_histogram_t) + sizeof(flow_bpp_histogram_t);
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xs = (xstat_t *)malloc(block_size);
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if ( !xs ) {
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LogError("malloc() error in %s line %d: %s\n", __FILE__, __LINE__, strerror(errno) );
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return NULL;
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}
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xs->block_header = (data_block_header_t *)((pointer_addr_t)xs + sizeof(xstat_t));
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// preset the fields
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xs->block_header->NumRecords = 2; // 2 histogram records are included
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xs->block_header->size = block_size;
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xs->block_header->id = Large_BLOCK_Type;
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xs->block_header->flags = 0;
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xs->port_histogram = (flow_port_histogram_t *)((pointer_addr_t)xs + sizeof(xstat_t) + sizeof(data_block_header_t));
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xs->bpp_histogram = (flow_bpp_histogram_t *)((pointer_addr_t)xs + sizeof(xstat_t) + sizeof(data_block_header_t) + sizeof(flow_port_histogram_t) - 4); // without link pointer data[4]
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// XXX add catalog entry
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// SetFlag(nffile->file_header->flags, FLAG_EXTENDED_STATS);
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ResetPortHistogram(xs->port_histogram);
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ResetBppHistogram(xs->bpp_histogram);
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return xs;
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} // End of InitXStat
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void ResetPortHistogram(flow_port_histogram_t *port_histogram) {
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memset((void *)port_histogram, 0, sizeof(flow_port_histogram_t) - 4); // without link pointer data[4]
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port_histogram->record_header.type = PortHistogramType;
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port_histogram->record_header.size = sizeof(flow_port_histogram_t) - 4;
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} // End of ResetPortHistogram
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void ResetBppHistogram(flow_bpp_histogram_t *bpp_histogram) {
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memset((void *)bpp_histogram, 0, sizeof(bpp_histogram_t) - 4); // without link pointer data[4]
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bpp_histogram->record_header.type = BppHistogramType;
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bpp_histogram->record_header.size = sizeof(flow_port_histogram_t) - 4;
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} // End of ResetBppHistogram
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