Exemplo n.º 1
0
static int32_t camd33_send(uchar *buf, int32_t ml)
{
  int32_t l;
  if (!cur_client()->pfd) return(-1);
  l=boundary(4, ml);
  memset(buf+ml, 0, l-ml);
  cs_ddump_mask(D_CLIENT, buf, l, "send %d bytes to client", l);
  if (cur_client()->crypted)
    aes_encrypt_idx(cur_client(), buf, l);
  return(send(cur_client()->pfd, buf, l, 0));
}
Exemplo n.º 2
0
static int32_t camd33_send(uchar *buf, int32_t ml)
{
	int32_t l;
	if(!cur_client()->pfd) { return (-1); }
	l = boundary(4, ml);
	memset(buf + ml, 0, l - ml);
	cs_log_dump_dbg(D_CLIENT, buf, l, "send %d bytes to client", l);
	if(cur_client()->crypted)
		{ aes_encrypt_idx(cur_client()->aes_keys, buf, l); }
	return (send(cur_client()->pfd, buf, l, 0));
}
Exemplo n.º 3
0
static int32_t __camd35_send(struct s_client *cl, uchar *buf, int32_t buflen, int answer_awaited)
{
	int32_t l;
	unsigned char rbuf[REQ_SIZE + 15 + 4], *sbuf = rbuf + 4;

	if(!cl->udp_fd || !cl->crypted) { return (-1); }  //exit if no fd or aes key not set!

	//Fix ECM len > 255
	if(buflen <= 0)
		{ buflen = ((buf[0] == 0) ? (((buf[21] & 0x0f) << 8) | buf[22]) + 3 : buf[1]); }
	l = 20 + (((buf[0] == 3) || (buf[0] == 4)) ? 0x34 : 0) + buflen;
	memcpy(rbuf, cl->ucrc, 4);
	memcpy(sbuf, buf, l);
	memset(sbuf + l, 0xff, 15); // set unused space to 0xff for newer camd3's
	i2b_buf(4, crc32(0L, sbuf + 20, buflen), sbuf + 4);
	l = boundary(4, l);
	cs_log_dump_dbg(cl->typ == 'c' ? D_CLIENT : D_READER, sbuf, l, "send %d bytes to %s", l, username(cl));
	aes_encrypt_idx(cl->aes_keys, sbuf, l);

	int32_t status;
	if(cl->is_udp)
	{
		status = sendto(cl->udp_fd, rbuf, l + 4, 0, (struct sockaddr *)&cl->udp_sa, cl->udp_sa_len);
		if(status == -1) { set_null_ip(&SIN_GET_ADDR(cl->udp_sa)); }
	}
	else
	{
		status = send(cl->udp_fd, rbuf, l + 4, 0);

		if(cl->typ == 'p' && cl->reader)
		{
			if(status == -1) { network_tcp_connection_close(cl->reader, "can't send"); }
		}
		else if(cl->typ == 'c')
		{
			if(status == -1) { cs_disconnect_client(cl); }
		}
	}
	if(status != -1)
	{
		if(cl->reader && answer_awaited)
		{
			cl->reader->last_s = time(NULL);
		}
		if(cl->reader && !answer_awaited)
		{
			cl->reader->last_s = cl->reader->last_g = time(NULL);
		}
		cl->last = time(NULL);

	}
	return status;
}
Exemplo n.º 4
0
static int32_t camd33_recv(struct s_client * client, uchar *buf, int32_t l)
{
  int32_t n;
  if (!client->pfd) return(-1);
  if ((n=recv(client->pfd, buf, l, 0))>0)
  {
    client->last=time((time_t *) 0);
    if (client->crypted)
      aes_encrypt_idx(cur_client(), buf, n);
  }
  cs_ddump_mask(D_CLIENT, buf, n, "received %d bytes from client", n);
  return(n);
}
Exemplo n.º 5
0
static int32_t camd33_recv(struct s_client *client, uchar *buf, int32_t l)
{
	int32_t n;
	if(!client->pfd) { return (-1); }
	if((n = cs_recv(client->pfd, buf, l, 0)) > 0)
	{
		client->last = time((time_t *) 0);
		if(client->crypted)
			{ aes_encrypt_idx(cur_client()->aes_keys, buf, n); }
	}
	cs_log_dump_dbg(D_CLIENT, buf, n, "received %d bytes from client", n);
	return (n);
}
Exemplo n.º 6
0
static int32_t camd35_send(uint8_t *buf, int32_t buflen)
{
	int32_t l, status;
	unsigned char rbuf[REQ_SIZE + 15 + 4], *sbuf = rbuf + 4;

	//Fix ECM len > 255
	if(buflen <= 0)
	{ buflen = ((buf[0] == 0) ? (((buf[21] & 0x0f) << 8) | buf[22]) + 3 : buf[1]); }
	l = 20 + (((buf[0] == 3) || (buf[0] == 4)) ? 0x34 : 0) + buflen;
	memcpy(rbuf, cl_ucrc, 4);
	memcpy(sbuf, buf, l);
	memset(sbuf + l, 0xff, 15); // set unused space to 0xff for newer camd3's
	i2b_buf(4, crc32(0, sbuf + 20, buflen), sbuf + 4);
	l = boundary(4, l);
	cs_log_dbg(0, "send %d bytes to client", l);
	aes_encrypt_idx(&cl_aes_keys, sbuf, l);

	status = sendto(cl_sockfd, rbuf, l + 4, 0, (struct sockaddr *)&cl_socket, sizeof(cl_socket));
	return status;
}
Exemplo n.º 7
0
int32_t monitor_send_idx(struct s_client *cl, char *txt)
{
	int32_t l;
	unsigned char buf[256+32];
	if (!cl->udp_fd)
		return -1;
	struct timespec req_ts;
	req_ts.tv_sec = 0;
	req_ts.tv_nsec = 500000;
	nanosleep (&req_ts, NULL);//avoid lost udp-pakkets
	if (!cl->crypted)
		return sendto(cl->udp_fd, txt, strlen(txt), 0, (struct sockaddr *)&cl->udp_sa, cl->udp_sa_len);
	buf[0]='&';
	buf[9]=l=strlen(txt);
	l=boundary(4, l+5)+5;
	memcpy(buf+1, cl->ucrc, 4);
	cs_strncpy((char *)buf+10, txt, sizeof(buf)-10);
	uchar tmp[10];
	memcpy(buf+5, i2b_buf(4, crc32(0L, buf+10, l-10), tmp), 4);
	aes_encrypt_idx(cl, buf+5, l-5);
	return sendto(cl->udp_fd, buf, l, 0, (struct sockaddr *)&cl->udp_sa, cl->udp_sa_len);
}