/*
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 .
*/
/**
* @file
* @brief DTLS functions specific to gnutls
*/
#include
#include
#include
#include "dtls.h"
#include "dtls_gnutls.h"
#include "capwap.h"
#include "timer.h"
ssize_t dtls_gnutls_bio_read(gnutls_transport_ptr_t b, void *out, size_t maxlen)
{
struct conn *conn = (struct conn *)b;
int rc = dtls_bio_read(conn,out,maxlen);
if (rc<=0){
errno = EAGAIN;
return -1;
}
errno=0;
return rc;
}
ssize_t dtls_gnutls_bio_write(gnutls_transport_ptr_t b, const void *data, size_t len)
{
struct conn *conn = (struct conn*)b;
return dtls_bio_write(conn,data,len);
}
int dtls_gnutls_bio_wait(gnutls_transport_ptr_t ptr, unsigned int ms)
{
struct conn * conn = (struct conn*)ptr;
time_t timer = cw_timer_start(ms/1000);
int rc;
uint8_t buffer[5];
do {
rc = conn->recv_packet_peek(conn,buffer,sizeof(buffer));
}while(!cw_timer_timeout(timer) && rc==GNUTLS_E_AGAIN);
return rc;
}