static int bio_write(BIO *b, const char *buf, int len)
{
struct dtls_flow *tc = b->ptr;
struct mbuf *mb;
enum {SPACE = 4}; /* sizeof TURN channel header */
int err;
mb = mbuf_alloc(SPACE + len);
if (!mb)
return -1;
(void)mbuf_fill(mb, 0x00, SPACE);
(void)mbuf_write_mem(mb, (void *)buf, len);
mb->pos = SPACE;
err = udp_send_helper(tc->us, &tc->peer, mb, tc->uh);
if (err) {
warning("dtls: udp_send_helper: %m\n", err);
}
mem_deref(mb);
return err ? -1 : len;
}
static int on_send_packet(const zrtp_stream_t *stream,
char *rtp_packet,
unsigned int rtp_packet_length)
{
struct menc_media *st = zrtp_stream_get_userdata(stream);
struct mbuf *mb;
int err;
if (drop_packets(st))
return zrtp_status_ok;
if (!sa_isset(&st->raddr, SA_ALL))
return zrtp_status_ok;
mb = mbuf_alloc(PRESZ + rtp_packet_length);
if (!mb)
return zrtp_status_alloc_fail;
mb->pos = PRESZ;
(void)mbuf_write_mem(mb, (void *)rtp_packet, rtp_packet_length);
mb->pos = PRESZ;
err = udp_send_helper(st->rtpsock, &st->raddr, mb, st->uh_rtp);
if (err) {
warning("zrtp: udp_send %u bytes (%m)\n",
rtp_packet_length, err);
}
mem_deref(mb);
return zrtp_status_ok;
}
static int bio_write(BIO *b, const char *buf, int len)
{
struct tls_conn *tc = b->ptr;
struct mbuf mb;
int err;
mb.buf = (void *)buf;
mb.pos = 0;
mb.end = mb.size = len;
err = udp_send_helper(tc->ts->us, &tc->peer, &mb, tc->ts->uh);
if (err)
return -1;
return len;
}
