64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
/*
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This file is part of libcapwap.
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libcapwap 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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libcapwap 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "capwap.h"
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#include "cwmsg.h"
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void cwmsg_init(struct cwmsg * cwmsg, uint8_t *buffer, int type, int seqnum, struct radioinfo * radioinfo)
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{
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int hlen=8;
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cwmsg->buffer=buffer;
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cwmsg->trnsprthdr=buffer;
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int rmaclen=0;
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cwmsg->flags=0;
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if (radioinfo){
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if (radioinfo->rmac[0]){
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/* we assume the radio mac is already aligned */
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rmaclen=(*radioinfo->rmac);
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memcpy(buffer+8,radioinfo->rmac,rmaclen/8+8);
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cwmsg->flags=CWTH_FLAGS_M;
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}
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}
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hlen+=rmaclen;
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if (hlen%4)
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hlen = (hlen>>2)*4+4;
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cwmsg->ctrlhdr=cwmsg->trnsprthdr+hlen;
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cwmsg->msgelems=cwmsg->ctrlhdr+8;
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*((uint32_t*)(cwmsg->ctrlhdr))=htonl(type);
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cwmsg->pos=0;
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cwmsg->hlen=hlen/4;
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if (radioinfo)
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cwmsg->rid=radioinfo->rid;
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else
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cwmsg->rid=0;
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cwmsg->seqnum=seqnum;
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cwmsg->type=type;
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}
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