gpxe: delete long since obsolete snapshot of gPXE

gPXE has been deprecated in favor of iPXE for many, many years now.
It is much better than users get it directly from the iPXE project,
since we should no longer need any special modifications for Syslinux
use.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 0 insertions, 291 deletions

diff --git a/gpxe/src/core/downloader.c b/gpxe/src/core/downloader.c
deleted file mode 100644
index 86c144dc..00000000
--- a/gpxe/src/core/downloader.c
+++ /dev/null
@@ -1,291 +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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-FILE_LICENCE ( GPL2_OR_LATER );
-
-#include <stdlib.h>
-#include <stdarg.h>
-#include <errno.h>
-#include <gpxe/xfer.h>
-#include <gpxe/open.h>
-#include <gpxe/job.h>
-#include <gpxe/uaccess.h>
-#include <gpxe/umalloc.h>
-#include <gpxe/image.h>
-#include <gpxe/downloader.h>
-
-/** @file
- *
- * Image downloader
- *
- */
-
-/** A downloader */
-struct downloader {
-	/** Reference count for this object */
-	struct refcnt refcnt;
-
-	/** Job control interface */
-	struct job_interface job;
-	/** Data transfer interface */
-	struct xfer_interface xfer;
-
-	/** Image to contain downloaded file */
-	struct image *image;
-	/** Current position within image buffer */
-	size_t pos;
-	/** Image registration routine */
-	int ( * register_image ) ( struct image *image );
-};
-
-/**
- * Free downloader object
- *
- * @v refcnt		Downloader reference counter
- */
-static void downloader_free ( struct refcnt *refcnt ) {
-	struct downloader *downloader =
-		container_of ( refcnt, struct downloader, refcnt );
-
-	image_put ( downloader->image );
-	free ( downloader );
-}
-
-/**
- * Terminate download
- *
- * @v downloader	Downloader
- * @v rc		Reason for termination
- */
-static void downloader_finished ( struct downloader *downloader, int rc ) {
-
-	/* Block further incoming messages */
-	job_nullify ( &downloader->job );
-	xfer_nullify ( &downloader->xfer );
-
-	/* Free resources and close interfaces */
-	xfer_close ( &downloader->xfer, rc );
-	job_done ( &downloader->job, rc );
-}
-
-/**
- * Ensure that download buffer is large enough for the specified size
- *
- * @v downloader	Downloader
- * @v len		Required minimum size
- * @ret rc		Return status code
- */
-static int downloader_ensure_size ( struct downloader *downloader,
-				    size_t len ) {
-	userptr_t new_buffer;
-
-	/* If buffer is already large enough, do nothing */
-	if ( len <= downloader->image->len )
-		return 0;
-
-	DBGC ( downloader, "Downloader %p extending to %zd bytes\n",
-	       downloader, len );
-
-	/* Extend buffer */
-	new_buffer = urealloc ( downloader->image->data, len );
-	if ( ! new_buffer ) {
-		DBGC ( downloader, "Downloader %p could not extend buffer to "
-		       "%zd bytes\n", downloader, len );
-		return -ENOBUFS;
-	}
-	downloader->image->data = new_buffer;
-	downloader->image->len = len;
-
-	return 0;
-}
-
-/****************************************************************************
- *
- * Job control interface
- *
- */
-
-/**
- * Handle kill() event received via job control interface
- *
- * @v job		Downloader job control interface
- */
-static void downloader_job_kill ( struct job_interface *job ) {
-	struct downloader *downloader =
-		container_of ( job, struct downloader, job );
-
-	/* Terminate download */
-	downloader_finished ( downloader, -ECANCELED );
-}
-
-/**
- * Report progress of download job
- *
- * @v job		Downloader job control interface
- * @v progress		Progress report to fill in
- */
-static void downloader_job_progress ( struct job_interface *job,
-				      struct job_progress *progress ) {
-	struct downloader *downloader =
-		container_of ( job, struct downloader, job );
-
-	/* This is not entirely accurate, since downloaded data may
-	 * arrive out of order (e.g. with multicast protocols), but
-	 * it's a reasonable first approximation.
-	 */
-	progress->completed = downloader->pos;
-	progress->total = downloader->image->len;
-}
-
-/** Downloader job control interface operations */
-static struct job_interface_operations downloader_job_operations = {
-	.done		= ignore_job_done,
-	.kill		= downloader_job_kill,
-	.progress	= downloader_job_progress,
-};
-
-/****************************************************************************
- *
- * Data transfer interface
- *
- */
-
-/**
- * Handle deliver_raw() event received via data transfer interface
- *
- * @v xfer		Downloader data transfer interface
- * @v iobuf		Datagram I/O buffer
- * @v meta		Data transfer metadata
- * @ret rc		Return status code
- */
-static int downloader_xfer_deliver_iob ( struct xfer_interface *xfer,
-					 struct io_buffer *iobuf,
-					 struct xfer_metadata *meta ) {
-	struct downloader *downloader =
-		container_of ( xfer, struct downloader, xfer );
-	size_t len;
-	size_t max;
-	int rc;
-
-	/* Calculate new buffer position */
-	if ( meta->whence != SEEK_CUR )
-		downloader->pos = 0;
-	downloader->pos += meta->offset;
-
-	/* Ensure that we have enough buffer space for this data */
-	len = iob_len ( iobuf );
-	max = ( downloader->pos + len );
-	if ( ( rc = downloader_ensure_size ( downloader, max ) ) != 0 )
-		goto done;
-
-	/* Copy data to buffer */
-	copy_to_user ( downloader->image->data, downloader->pos,
-		       iobuf->data, len );
-
-	/* Update current buffer position */
-	downloader->pos += len;
-
- done:
-	free_iob ( iobuf );
-	return rc;
-}
-
-/**
- * Handle close() event received via data transfer interface
- *
- * @v xfer		Downloader data transfer interface
- * @v rc		Reason for close
- */
-static void downloader_xfer_close ( struct xfer_interface *xfer, int rc ) {
-	struct downloader *downloader =
-		container_of ( xfer, struct downloader, xfer );
-
-	/* Register image if download was successful */
-	if ( rc == 0 )
-		rc = downloader->register_image ( downloader->image );
-
-	/* Terminate download */
-	downloader_finished ( downloader, rc );
-}
-
-/** Downloader data transfer interface operations */
-static struct xfer_interface_operations downloader_xfer_operations = {
-	.close		= downloader_xfer_close,
-	.vredirect	= xfer_vreopen,
-	.window		= unlimited_xfer_window,
-	.alloc_iob	= default_xfer_alloc_iob,
-	.deliver_iob	= downloader_xfer_deliver_iob,
-	.deliver_raw	= xfer_deliver_as_iob,
-};
-
-/****************************************************************************
- *
- * Instantiator
- *
- */
-
-/**
- * Instantiate a downloader
- *
- * @v job		Job control interface
- * @v image		Image to fill with downloaded file
- * @v register_image	Image registration routine
- * @v type		Location type to pass to xfer_open()
- * @v ...		Remaining arguments to pass to xfer_open()
- * @ret rc		Return status code
- *
- * Instantiates a downloader object to download the specified URI into
- * the specified image object.  If the download is successful, the
- * image registration routine @c register_image() will be called.
- */
-int create_downloader ( struct job_interface *job, struct image *image,
-			int ( * register_image ) ( struct image *image ),
-			int type, ... ) {
-	struct downloader *downloader;
-	va_list args;
-	int rc;
-
-	/* Allocate and initialise structure */
-	downloader = zalloc ( sizeof ( *downloader ) );
-	if ( ! downloader )
-		return -ENOMEM;
-	downloader->refcnt.free = downloader_free;
-	job_init ( &downloader->job, &downloader_job_operations,
-		   &downloader->refcnt );
-	xfer_init ( &downloader->xfer, &downloader_xfer_operations,
-		    &downloader->refcnt );
-	downloader->image = image_get ( image );
-	downloader->register_image = register_image;
-	va_start ( args, type );
-
-	/* Instantiate child objects and attach to our interfaces */
-	if ( ( rc = xfer_vopen ( &downloader->xfer, type, args ) ) != 0 )
-		goto err;
-
-	/* Attach parent interface, mortalise self, and return */
-	job_plug_plug ( &downloader->job, job );
-	ref_put ( &downloader->refcnt );
-	va_end ( args );
-	return 0;
-
- err:
-	downloader_finished ( downloader, rc );
-	ref_put ( &downloader->refcnt );
-	va_end ( args );
-	return rc;
-}