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132 lines
4.1 KiB
C
132 lines
4.1 KiB
C
/*
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* (C) 2007-18 - ntop.org and contributors
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>
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*
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*/
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#include "n2n_wire.h"
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#include "n2n_transforms.h"
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#include "n2n.h"
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#include <sys/time.h>
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#include <time.h>
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#include <string.h>
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#include <stdio.h>
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uint8_t PKT_CONTENT[]={
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
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0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 };
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/* Prototypes */
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static ssize_t do_encode_packet( uint8_t * pktbuf, size_t bufsize, const n2n_community_t c );
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int main(int argc, char * argv[]) {
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uint8_t pktbuf[N2N_PKT_BUF_SIZE];
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n2n_trans_op_t transop_null;
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n2n_common_t cmn;
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n2n_PACKET_t pkt;
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n2n_community_t c;
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struct timeval t1;
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struct timeval t2;
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size_t i;
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size_t n;
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size_t idx;
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size_t rem;
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ssize_t nw;
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ssize_t tdiff;
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transop_null_init( &transop_null );
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memset(c,0,sizeof(N2N_COMMUNITY_SIZE));
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n=10000;
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memcpy( c, "abc123def456", 12 );
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gettimeofday( &t1, NULL );
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for(i=0; i<n; ++i)
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{
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nw = do_encode_packet( pktbuf, N2N_PKT_BUF_SIZE, c);
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nw += transop_null.fwd( &transop_null,
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pktbuf+nw, N2N_PKT_BUF_SIZE-nw,
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PKT_CONTENT, sizeof(PKT_CONTENT) );
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idx=0;
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rem=nw;
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decode_common( &cmn, pktbuf, &rem, &idx);
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decode_PACKET( &pkt, &cmn, pktbuf, &rem, &idx );
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if ( 0 == (i%1000) )
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{
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fprintf(stderr,".");
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}
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}
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gettimeofday( &t2, NULL );
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tdiff = ((t2.tv_sec - t1.tv_sec) * 1000000) + (t2.tv_usec - t1.tv_usec);
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fprintf( stderr, "\nrun %u times. (%u -> %u nsec each) %u.%06u -> %u.%06u.\n",
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(unsigned int)i, (unsigned int)tdiff,
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(unsigned int)((tdiff *1000)/i),
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(uint32_t)t1.tv_sec, (uint32_t)t1.tv_usec,
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(uint32_t)t2.tv_sec, (uint32_t)t2.tv_usec );
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return 0;
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}
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static ssize_t do_encode_packet( uint8_t * pktbuf, size_t bufsize, const n2n_community_t c )
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{
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n2n_mac_t destMac={0,1,2,3,4,5};
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n2n_common_t cmn;
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n2n_PACKET_t pkt;
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size_t idx;
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memset( &cmn, 0, sizeof(cmn) );
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cmn.ttl = N2N_DEFAULT_TTL;
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cmn.pc = n2n_packet;
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cmn.flags=0; /* no options, not from supernode, no socket */
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memcpy( cmn.community, c, N2N_COMMUNITY_SIZE );
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memset( &pkt, 0, sizeof(pkt) );
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memcpy( pkt.srcMac, destMac, N2N_MAC_SIZE);
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memcpy( pkt.dstMac, destMac, N2N_MAC_SIZE);
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pkt.sock.family=0; /* do not encode sock */
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idx=0;
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encode_PACKET( pktbuf, &idx, &cmn, &pkt );
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traceEvent( TRACE_DEBUG, "encoded PACKET header of size=%u", (unsigned int)idx );
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return idx;
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}
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