1 files changed, 0 insertions, 184 deletions
diff --git a/qemu/roms/ipxe/src/net/fragment.c b/qemu/roms/ipxe/src/net/fragment.c
deleted file mode 100644
index 781b9bc60..000000000
--- a/qemu/roms/ipxe/src/net/fragment.c
+++ /dev/null
@@ -1,184 +0,0 @@
-/*
- * Copyright (C) 2013 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 <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ipxe/retry.h>
-#include <ipxe/timer.h>
-#include <ipxe/ipstat.h>
-#include <ipxe/fragment.h>
-
-/** @file
- *
- * Fragment reassembly
- *
- */
-
-/**
- * Expire fragment reassembly buffer
- *
- * @v timer		Retry timer
- * @v fail		Failure indicator
- */
-static void fragment_expired ( struct retry_timer *timer, int fail __unused ) {
-	struct fragment *fragment =
-		container_of ( timer, struct fragment, timer );
-
-	DBGC ( fragment, "FRAG %p expired\n", fragment );
-	free_iob ( fragment->iobuf );
-	list_del ( &fragment->list );
-	fragment->fragments->stats->reasm_fails++;
-	free ( fragment );
-}
-
-/**
- * Find fragment reassembly buffer
- *
- * @v fragments		Fragment reassembler
- * @v iobuf		I/O buffer
- * @v hdrlen		Length of non-fragmentable potion of I/O buffer
- * @ret fragment	Fragment reassembly buffer, or NULL if not found
- */
-static struct fragment * fragment_find ( struct fragment_reassembler *fragments,
-					 struct io_buffer *iobuf,
-					 size_t hdrlen ) {
-	struct fragment *fragment;
-
-	list_for_each_entry ( fragment, &fragments->list, list ) {
-		if ( fragments->is_fragment ( fragment, iobuf, hdrlen ) )
-			return fragment;
-	}
-	return NULL;
-}
-
-/**
- * Reassemble packet
- *
- * @v fragments		Fragment reassembler
- * @v iobuf		I/O buffer
- * @v hdrlen		Length of non-fragmentable potion of I/O buffer
- * @ret iobuf		Reassembled packet, or NULL
- *
- * This function takes ownership of the I/O buffer.  Note that the
- * length of the non-fragmentable portion may be modified.
- */
-struct io_buffer * fragment_reassemble ( struct fragment_reassembler *fragments,
-					 struct io_buffer *iobuf,
-					 size_t *hdrlen ) {
-	struct fragment *fragment;
-	struct io_buffer *new_iobuf;
-	size_t new_len;
-	size_t offset;
-	size_t expected_offset;
-	int more_frags;
-
-	/* Update statistics */
-	fragments->stats->reasm_reqds++;
-
-	/* Find matching fragment reassembly buffer, if any */
-	fragment = fragment_find ( fragments, iobuf, *hdrlen );
-
-	/* Drop out-of-order fragments */
-	offset = fragments->fragment_offset ( iobuf, *hdrlen );
-	expected_offset = ( fragment ? ( iob_len ( fragment->iobuf ) -
-					 fragment->hdrlen ) : 0 );
-	if ( offset != expected_offset ) {
-		DBGC ( fragment, "FRAG %p dropping out-of-sequence fragment "
-		       "[%zd,%zd), expected [%zd,...)\n", fragment, offset,
-		       ( offset + iob_len ( iobuf ) - *hdrlen ),
-		       expected_offset );
-		goto drop;
-	}
-
-	/* Create or extend fragment reassembly buffer as applicable */
-	if ( ! fragment ) {
-
-		/* Create new fragment reassembly buffer */
-		fragment = zalloc ( sizeof ( *fragment ) );
-		if ( ! fragment )
-			goto drop;
-		list_add ( &fragment->list, &fragments->list );
-		fragment->iobuf = iobuf;
-		fragment->hdrlen = *hdrlen;
-		timer_init ( &fragment->timer, fragment_expired, NULL );
-		fragment->fragments = fragments;
-		DBGC ( fragment, "FRAG %p [0,%zd)\n", fragment,
-		       ( iob_len ( iobuf ) - *hdrlen ) );
-
-	} else {
-
-		/* Check if this is the final fragment */
-		more_frags = fragments->more_fragments ( iobuf, *hdrlen );
-		DBGC ( fragment, "FRAG %p [%zd,%zd)%s\n", fragment,
-		       offset, ( offset + iob_len ( iobuf ) - *hdrlen ),
-		       ( more_frags ? "" : " complete" ) );
-
-		/* Extend fragment reassembly buffer.  Preserve I/O
-		 * buffer headroom to allow for code which modifies
-		 * and resends the buffer (e.g. ICMP echo responses).
-		 */
-		iob_pull ( iobuf, *hdrlen );
-		new_len = ( iob_headroom ( fragment->iobuf ) +
-			    iob_len ( fragment->iobuf ) + iob_len ( iobuf ) );
-		new_iobuf = alloc_iob ( new_len );
-		if ( ! new_iobuf ) {
-			DBGC ( fragment, "FRAG %p could not extend reassembly "
-			       "buffer to %zd bytes\n", fragment, new_len );
-			goto drop;
-		}
-		iob_reserve ( new_iobuf, iob_headroom ( fragment->iobuf ) );
-		memcpy ( iob_put ( new_iobuf, iob_len ( fragment->iobuf ) ),
-			 fragment->iobuf->data, iob_len ( fragment->iobuf ) );
-		memcpy ( iob_put ( new_iobuf, iob_len ( iobuf ) ),
-			 iobuf->data, iob_len ( iobuf ) );
-		free_iob ( fragment->iobuf );
-		fragment->iobuf = new_iobuf;
-		free_iob ( iobuf );
-
-		/* Stop fragment reassembly timer */
-		stop_timer ( &fragment->timer );
-
-		/* If this is the final fragment, return it */
-		if ( ! more_frags ) {
-			iobuf = fragment->iobuf;
-			*hdrlen = fragment->hdrlen;
-			list_del ( &fragment->list );
-			free ( fragment );
-			fragments->stats->reasm_oks++;
-			return iobuf;
-		}
-	}
-
-	/* (Re)start fragment reassembly timer */
-	start_timer_fixed ( &fragment->timer, FRAGMENT_TIMEOUT );
-
-	return NULL;
-
- drop:
-	fragments->stats->reasm_fails++;
-	free_iob ( iobuf );
-	return NULL;
-}