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64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
/*
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Serval Distributed Numbering Architecture (DNA)
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Copyright (C) 2010 Paul Gardner-Stephen
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "serval.h"
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int packetOk(struct overlay_interface *interface, unsigned char *packet, size_t len,
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unsigned char *transaction_id,int ttl,
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struct sockaddr *recvaddr, size_t recvaddrlen,int parseP)
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{
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if (len<HEADERFIELDS_LEN) return WHY("Packet is too short");
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if (packet[0]==0x4F&&packet[1]==0x10)
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{
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if (interface!=NULL)
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{
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return packetOkOverlay(interface,packet,len,transaction_id,ttl,
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recvaddr,recvaddrlen,parseP);
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}
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else
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/* We ignore overlay mesh packets in simple server mode, which is indicated by interface==-1 */
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return WHY("Ignoring overlay mesh packet");
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}
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return WHY("Packet type not recognised.");
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}
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void write_uint64(unsigned char *o,uint64_t v)
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{
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int i;
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for(i=0;i<8;i++)
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{ *(o++)=v&0xff; v=v>>8; }
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}
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void write_uint32(unsigned char *o,uint32_t v)
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{
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int i;
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for(i=0;i<4;i++)
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{ *(o++)=v&0xff; v=v>>8; }
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}
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void write_uint16(unsigned char *o,uint16_t v)
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{
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int i;
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for(i=0;i<2;i++)
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{ *(o++)=v&0xff; v=v>>8; }
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}
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