1 files changed, 0 insertions, 392 deletions
diff --git a/qemu/roms/ipxe/src/core/xfer.c b/qemu/roms/ipxe/src/core/xfer.c
deleted file mode 100644
index 112fee1bf..000000000
--- a/qemu/roms/ipxe/src/core/xfer.c
+++ /dev/null
@@ -1,392 +0,0 @@
-/*
- * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
- *
- * This program 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 2 of the
- * License, or any later version.
- *
- * This program 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 this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- * You can also choose to distribute this program under the terms of
- * the Unmodified Binary Distribution Licence (as given in the file
- * COPYING.UBDL), provided that you have satisfied its requirements.
- */
-
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-#include <string.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <errno.h>
-#include <ipxe/iobuf.h>
-#include <ipxe/xfer.h>
-#include <ipxe/open.h>
-
-/** @file
- *
- * Data transfer interfaces
- *
- */
-
-/**
- * Dummy transfer metadata
- *
- * This gets passed to xfer_interface::deliver() and equivalents when
- * no metadata is available.
- */
-static struct xfer_metadata dummy_metadata;
-
-/*****************************************************************************
- *
- * Data transfer interface operations
- *
- */
-
-/**
- * Send redirection event
- *
- * @v intf		Data transfer interface
- * @v type		New location type
- * @v args		Remaining arguments depend upon location type
- * @ret rc		Return status code
- */
-int xfer_vredirect ( struct interface *intf, int type, va_list args ) {
-	struct interface tmp = INTF_INIT ( null_intf_desc );
-	struct interface *dest;
-	xfer_vredirect_TYPE ( void * ) *op =
-		intf_get_dest_op_no_passthru ( intf, xfer_vredirect, &dest );
-	void *object = intf_object ( dest );
-	int rc;
-
-	DBGC ( INTF_COL ( intf ), "INTF " INTF_INTF_FMT " redirect\n",
-	       INTF_INTF_DBG ( intf, dest ) );
-
-	if ( op ) {
-		rc = op ( object, type, args );
-	} else {
-		/* Default is to reopen the interface as instructed,
-		 * then send xfer_window_changed() messages to both
-		 * new child and parent interfaces.  Since our
-		 * original child interface is likely to be closed and
-		 * unplugged as a result of the call to
-		 * xfer_vreopen(), we create a temporary interface in
-		 * order to be able to send xfer_window_changed() to
-		 * the parent.
-		 */
-		intf_plug ( &tmp, dest );
-		rc = xfer_vreopen ( dest, type, args );
-		if ( rc == 0 ) {
-			xfer_window_changed ( dest );
-			xfer_window_changed ( &tmp );
-		}
-		intf_unplug ( &tmp );
-	}
-
-	if ( rc != 0 ) {
-		DBGC ( INTF_COL ( intf ), "INTF " INTF_INTF_FMT " redirect "
-		       "failed: %s\n", INTF_INTF_DBG ( intf, dest ),
-		       strerror ( rc ) );
-	}
-
-	intf_put ( dest );
-	return rc;
-}
-
-/**
- * Check flow control window
- *
- * @v intf		Data transfer interface
- * @ret len		Length of window
- */
-size_t xfer_window ( struct interface *intf ) {
-	struct interface *dest;
-	xfer_window_TYPE ( void * ) *op =
-		intf_get_dest_op ( intf, xfer_window, &dest );
-	void *object = intf_object ( dest );
-	size_t len;
-
-	if ( op ) {
-		len = op ( object );
-	} else {
-		/* Default is to provide an unlimited window */
-		len = ~( ( size_t ) 0 );
-	}
-
-	intf_put ( dest );
-	return len;
-}
-
-/**
- * Report change of flow control window
- *
- * @v intf		Data transfer interface
- *
- * Note that this method is used to indicate only unsolicited changes
- * in the flow control window.  In particular, this method must not be
- * called as part of the response to xfer_deliver(), since that could
- * easily lead to an infinite loop.  Callers of xfer_deliver() should
- * assume that the flow control window will have changed without
- * generating an xfer_window_changed() message.
- */
-void xfer_window_changed ( struct interface *intf ) {
-
-	intf_poke ( intf, xfer_window_changed );
-}
-
-/**
- * Allocate I/O buffer
- *
- * @v intf		Data transfer interface
- * @v len		I/O buffer payload length
- * @ret iobuf		I/O buffer
- */
-struct io_buffer * xfer_alloc_iob ( struct interface *intf, size_t len ) {
-	struct interface *dest;
-	xfer_alloc_iob_TYPE ( void * ) *op =
-		intf_get_dest_op ( intf, xfer_alloc_iob, &dest );
-	void *object = intf_object ( dest );
-	struct io_buffer *iobuf;
-
-	DBGC ( INTF_COL ( intf ), "INTF " INTF_INTF_FMT " alloc_iob %zd\n",
-	       INTF_INTF_DBG ( intf, dest ), len );
-
-	if ( op ) {
-		iobuf = op ( object, len );
-	} else {
-		/* Default is to allocate an I/O buffer with no
-		 * reserved space.
-		 */
-		iobuf = alloc_iob ( len );
-	}
-
-	if ( ! iobuf ) {
-		DBGC ( INTF_COL ( intf ), "INTF " INTF_INTF_FMT " alloc_iob "
-		       "failed\n", INTF_INTF_DBG ( intf, dest ) );
-	}
-
-	intf_put ( dest );
-	return iobuf;
-}
-
-/**
- * Deliver datagram
- *
- * @v intf		Data transfer interface
- * @v iobuf		Datagram I/O buffer
- * @v meta		Data transfer metadata
- * @ret rc		Return status code
- */
-int xfer_deliver ( struct interface *intf,
-		   struct io_buffer *iobuf,
-		   struct xfer_metadata *meta ) {
-	struct interface *dest;
-	xfer_deliver_TYPE ( void * ) *op =
-		intf_get_dest_op ( intf, xfer_deliver, &dest );
-	void *object = intf_object ( dest );
-	int rc;
-
-	DBGC ( INTF_COL ( intf ), "INTF " INTF_INTF_FMT " deliver %zd\n",
-	       INTF_INTF_DBG ( intf, dest ), iob_len ( iobuf ) );
-
-	if ( op ) {
-		rc = op ( object, iobuf, meta );
-	} else {
-		/* Default is to discard the I/O buffer */
-		free_iob ( iobuf );
-		rc = -EPIPE;
-	}
-
-	if ( rc != 0 ) {
-		DBGC ( INTF_COL ( intf ), "INTF " INTF_INTF_FMT
-		       " deliver failed: %s\n",
-		       INTF_INTF_DBG ( intf, dest ), strerror ( rc ) );
-	}
-
-	intf_put ( dest );
-	return rc;
-}
-
-/*****************************************************************************
- *
- * Data transfer interface helper functions
- *
- */
-
-/**
- * Send redirection event
- *
- * @v intf		Data transfer interface
- * @v type		New location type
- * @v ...		Remaining arguments depend upon location type
- * @ret rc		Return status code
- */
-int xfer_redirect ( struct interface *intf, int type, ... ) {
-	va_list args;
-	int rc;
-
-	va_start ( args, type );
-	rc = xfer_vredirect ( intf, type, args );
-	va_end ( args );
-	return rc;
-}
-
-/**
- * Deliver datagram as I/O buffer without metadata
- *
- * @v intf		Data transfer interface
- * @v iobuf		Datagram I/O buffer
- * @ret rc		Return status code
- */
-int xfer_deliver_iob ( struct interface *intf, struct io_buffer *iobuf ) {
-	return xfer_deliver ( intf, iobuf, &dummy_metadata );
-}
-
-/**
- * Deliver datagram as raw data
- *
- * @v intf		Data transfer interface
- * @v data		Data
- * @v len		Length of data
- * @v meta		Data transfer metadata
- * @ret rc		Return status code
- */
-int xfer_deliver_raw_meta ( struct interface *intf, const void *data,
-			    size_t len, struct xfer_metadata *meta ) {
-	struct io_buffer *iobuf;
-
-	iobuf = xfer_alloc_iob ( intf, len );
-	if ( ! iobuf )
-		return -ENOMEM;
-
-	memcpy ( iob_put ( iobuf, len ), data, len );
-	return xfer_deliver ( intf, iobuf, meta );
-}
-
-/**
- * Deliver datagram as raw data without metadata
- *
- * @v intf		Data transfer interface
- * @v data		Data
- * @v len		Length of data
- * @ret rc		Return status code
- */
-int xfer_deliver_raw ( struct interface *intf, const void *data, size_t len ) {
-	return xfer_deliver_raw_meta ( intf, data, len, &dummy_metadata );
-}
-
-/**
- * Deliver formatted string
- *
- * @v intf		Data transfer interface
- * @v format		Format string
- * @v args		Arguments corresponding to the format string
- * @ret rc		Return status code
- */
-int xfer_vprintf ( struct interface *intf, const char *format,
-		   va_list args ) {
-	va_list args_tmp;
-	char *buf;
-	int len;
-	int rc;
-
-	/* Create temporary string */
-	va_copy ( args_tmp, args );
-	len = vasprintf ( &buf, format, args );
-	if ( len < 0 ) {
-		rc = len;
-		goto err_asprintf;
-	}
-	va_end ( args_tmp );
-
-	/* Transmit string */
-	if ( ( rc = xfer_deliver_raw ( intf, buf, len ) ) != 0 )
-		goto err_deliver;
-
- err_deliver:
-	free ( buf );
- err_asprintf:
-	return rc;
-}
-
-/**
- * Deliver formatted string
- *
- * @v intf		Data transfer interface
- * @v format		Format string
- * @v ...		Arguments corresponding to the format string
- * @ret rc		Return status code
- */
-int xfer_printf ( struct interface *intf, const char *format, ... ) {
-	va_list args;
-	int rc;
-
-	va_start ( args, format );
-	rc = xfer_vprintf ( intf, format, args );
-	va_end ( args );
-	return rc;
-}
-
-/**
- * Seek to position
- *
- * @v intf		Data transfer interface
- * @v offset		Offset to new position
- * @ret rc		Return status code
- */
-int xfer_seek ( struct interface *intf, off_t offset ) {
-	struct io_buffer *iobuf;
-	struct xfer_metadata meta = {
-		.flags = XFER_FL_ABS_OFFSET,
-		.offset = offset,
-	};
-
-	DBGC ( INTF_COL ( intf ), "INTF " INTF_FMT " seek to %ld\n",
-	       INTF_DBG ( intf ), offset );
-
-	/* Allocate and send a zero-length data buffer */
-	iobuf = xfer_alloc_iob ( intf, 0 );
-	if ( ! iobuf )
-		return -ENOMEM;
-
-	return xfer_deliver ( intf, iobuf, &meta );
-}
-
-/**
- * Check that data is delivered strictly in order
- *
- * @v meta		Data transfer metadata
- * @v pos		Current position
- * @v len		Length of data
- * @ret rc		Return status code
- */
-int xfer_check_order ( struct xfer_metadata *meta, size_t *pos, size_t len ) {
-	size_t new_pos;
-
-	/* Allow out-of-order zero-length packets (as used by xfer_seek()) */
-	if ( len == 0 )
-		return 0;
-
-	/* Calculate position of this delivery */
-	new_pos = *pos;
-	if ( meta->flags & XFER_FL_ABS_OFFSET )
-		new_pos = 0;
-	new_pos += meta->offset;
-
-	/* Fail if delivery position is not equal to current position */
-	if ( new_pos != *pos )
-		return -EPROTO;
-
-	/* Update current position */
-	*pos += len;
-
-	return 0;
-}