actube/src/capwap/conn_q_add_packet.c

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/*
This file is part of libcapwap.
libcapwap is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
libcapwap is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <string.h>
#include "dbg.h"
#include "conn.h"
#include "sock.h"
void conn_q_add_packet(struct conn * conn,uint8_t *packet,int len)
{
int qwpos = conn->qwpos;
if (qwpos==conn->qsize)
qwpos=0;
if (conn->qrpos==qwpos){
/* no buffers, discard packet */
cw_dbg(DBG_PKT_ERR, "Discarding packe from %s, no queue buffers left",
sock_addr2str(&conn->addr));
return;
}
conn->q[qwpos]=malloc(len+4);
if (conn->q[qwpos]==NULL)
return;
*((uint32_t*)(conn->q[qwpos]))=len;
memcpy(conn->q[qwpos]+4,packet,len);
conn->qwpos=qwpos+1;
sem_post(&conn->q_sem);
}