1 /* 2 * Copyright (C) 2007 Michael Brown <mbrown (at) fensystems.co.uk>. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License as 6 * published by the Free Software Foundation; either version 2 of the 7 * License, or any later version. 8 * 9 * This program is distributed in the hope that it will be useful, but 10 * WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write to the Free Software 16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 17 */ 18 19 FILE_LICENCE ( GPL2_OR_LATER ); 20 21 #include <gpxe/xfer.h> 22 #include <gpxe/filter.h> 23 24 /** @file 25 * 26 * Data transfer filters 27 * 28 */ 29 30 /* 31 * Pass-through methods to be used by filters which don't want to 32 * intercept all events. 33 * 34 */ 35 36 void filter_close ( struct xfer_interface *xfer, int rc ) { 37 struct xfer_interface *other = filter_other_half ( xfer ); 38 39 xfer_close ( other, rc ); 40 } 41 42 int filter_vredirect ( struct xfer_interface *xfer, int type, 43 va_list args ) { 44 struct xfer_interface *other = filter_other_half ( xfer ); 45 46 return xfer_vredirect ( other, type, args ); 47 } 48 49 size_t filter_window ( struct xfer_interface *xfer ) { 50 struct xfer_interface *other = filter_other_half ( xfer ); 51 52 return xfer_window ( other ); 53 } 54 55 struct io_buffer * filter_alloc_iob ( struct xfer_interface *xfer, 56 size_t len ) { 57 struct xfer_interface *other = filter_other_half ( xfer ); 58 59 return xfer_alloc_iob ( other, len ); 60 } 61 62 int filter_deliver_iob ( struct xfer_interface *xfer, struct io_buffer *iobuf, 63 struct xfer_metadata *meta ) { 64 struct xfer_interface *other = filter_other_half ( xfer ); 65 66 return xfer_deliver_iob_meta ( other, iobuf, meta ); 67 } 68 69 int filter_deliver_raw ( struct xfer_interface *xfer, const void *data, 70 size_t len ) { 71 struct xfer_interface *other = filter_other_half ( xfer ); 72 73 return xfer_deliver_raw ( other, data, len ); 74 } 75
