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, 257 deletions

diff --git a/gpxe/src/core/gdbudp.c b/gpxe/src/core/gdbudp.c
deleted file mode 100644
index 26feb38a..00000000
--- a/gpxe/src/core/gdbudp.c
+++ /dev/null
@@ -1,257 +0,0 @@
-/*
- * Copyright (C) 2008 Stefan Hajnoczi <stefanha@gmail.com>.
- *
- * 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.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <byteswap.h>
-#include <gpxe/iobuf.h>
-#include <gpxe/in.h>
-#include <gpxe/if_arp.h>
-#include <gpxe/if_ether.h>
-#include <gpxe/ip.h>
-#include <gpxe/udp.h>
-#include <gpxe/netdevice.h>
-#include <gpxe/nap.h>
-#include <gpxe/gdbstub.h>
-#include <gpxe/gdbudp.h>
-
-/** @file
- *
- * GDB over UDP transport
- *
- */
-
-enum {
-	DEFAULT_PORT = 43770, /* UDP listen port */
-};
-
-struct gdb_transport udp_gdb_transport __gdb_transport;
-
-static struct net_device *netdev;
-static uint8_t dest_eth[ETH_ALEN];
-static struct sockaddr_in dest_addr;
-static struct sockaddr_in source_addr;
-
-static void gdbudp_ensure_netdev_open ( struct net_device *netdev ) {
-	/* The device may have been closed between breakpoints */
-	assert ( netdev );
-	netdev_open ( netdev );
-
-	/* Strictly speaking, we may need to close the device when leaving the interrupt handler */
-}
-
-static size_t gdbudp_recv ( char *buf, size_t len ) {
-	struct io_buffer *iob;
-	struct ethhdr *ethhdr;
-	struct arphdr *arphdr;
-	struct iphdr *iphdr;
-	struct udp_header *udphdr;
-	size_t payload_len;
-
-	gdbudp_ensure_netdev_open ( netdev );
-
-	for ( ; ; ) {
-		netdev_poll ( netdev );
-		while ( ( iob = netdev_rx_dequeue ( netdev ) ) != NULL ) {
-			/* Ethernet header */
-			if ( iob_len ( iob ) < sizeof ( *ethhdr ) ) {
-				goto bad_packet;
-			}
-			ethhdr = iob->data;
-			iob_pull ( iob, sizeof ( *ethhdr ) );
-
-			/* Handle ARP requests so the client can find our MAC */
-			if ( ethhdr->h_protocol == htons ( ETH_P_ARP ) ) {
-				arphdr = iob->data;
-				if ( iob_len ( iob ) < sizeof ( *arphdr ) + 2 * ( ETH_ALEN + sizeof ( struct in_addr ) ) ||
-						arphdr->ar_hrd != htons ( ARPHRD_ETHER ) ||
-						arphdr->ar_pro != htons ( ETH_P_IP ) ||
-						arphdr->ar_hln != ETH_ALEN ||
-						arphdr->ar_pln != sizeof ( struct in_addr ) ||
-						arphdr->ar_op != htons ( ARPOP_REQUEST ) ||
-						* ( uint32_t * ) arp_target_pa ( arphdr ) != source_addr.sin_addr.s_addr ) {
-					goto bad_packet;
-				}
-
-				/* Generate an ARP reply */
-				arphdr->ar_op = htons ( ARPOP_REPLY );
-				memswap ( arp_sender_pa ( arphdr ), arp_target_pa ( arphdr ), sizeof ( struct in_addr ) );
-				memcpy ( arp_target_ha ( arphdr ), arp_sender_ha ( arphdr ), ETH_ALEN );
-				memcpy ( arp_sender_ha ( arphdr ), netdev->ll_addr, ETH_ALEN );
-
-				/* Fix up ethernet header */
-				ethhdr = iob_push ( iob, sizeof ( *ethhdr ) );
-				memcpy ( ethhdr->h_dest, ethhdr->h_source, ETH_ALEN );
-				memcpy ( ethhdr->h_source, netdev->ll_addr, ETH_ALEN );
-
-				netdev_tx ( netdev, iob );
-				continue; /* no need to free iob */
-			}
-
-			if ( ethhdr->h_protocol != htons ( ETH_P_IP ) ) {
-				goto bad_packet;
-			}
-
-			/* IP header */
-			if ( iob_len ( iob ) < sizeof ( *iphdr ) ) {
-				goto bad_packet;
-			}
-			iphdr = iob->data;
-			iob_pull ( iob, sizeof ( *iphdr ) );
-			if ( iphdr->protocol != IP_UDP || iphdr->dest.s_addr != source_addr.sin_addr.s_addr ) {
-				goto bad_packet;
-			}
-
-			/* UDP header */
-			if ( iob_len ( iob ) < sizeof ( *udphdr ) ) {
-				goto bad_packet;
-			}
-			udphdr = iob->data;
-			if ( udphdr->dest != source_addr.sin_port ) {
-				goto bad_packet;
-			}
-
-			/* Learn the remote connection details */
-			memcpy ( dest_eth, ethhdr->h_source, ETH_ALEN );
-			dest_addr.sin_addr.s_addr = iphdr->src.s_addr;
-			dest_addr.sin_port = udphdr->src;
-
-			/* Payload */
-			payload_len = ntohs ( udphdr->len );
-			if ( payload_len < sizeof ( *udphdr ) || payload_len > iob_len ( iob ) ) {
-				goto bad_packet;
-			}
-			payload_len -= sizeof ( *udphdr );
-			iob_pull ( iob, sizeof ( *udphdr ) );
-			if ( payload_len > len ) {
-				goto bad_packet;
-			}
-			memcpy ( buf, iob->data, payload_len );
-
-			free_iob ( iob );
-			return payload_len;
-
-bad_packet:
-			free_iob ( iob );
-		}
-		cpu_nap();
-	}
-}
-
-static void gdbudp_send ( const char *buf, size_t len ) {
-	struct io_buffer *iob;
-	struct ethhdr *ethhdr;
-	struct iphdr *iphdr;
-	struct udp_header *udphdr;
-
-	/* Check that we are connected */
-	if ( dest_addr.sin_port == 0 ) {
-		return;
-	}
-
-	gdbudp_ensure_netdev_open ( netdev );
-
-	iob = alloc_iob ( sizeof ( *ethhdr ) + sizeof ( *iphdr ) + sizeof ( *udphdr ) + len );
-	if ( !iob ) {
-		return;
-	}
-
-	/* Payload */
-	iob_reserve ( iob, sizeof ( *ethhdr ) + sizeof ( *iphdr ) + sizeof ( *udphdr ) );
-	memcpy ( iob_put ( iob, len ), buf, len );
-
-	/* UDP header */
-	udphdr = iob_push ( iob, sizeof ( *udphdr ) );
-	udphdr->src = source_addr.sin_port;
-	udphdr->dest = dest_addr.sin_port;
-	udphdr->len = htons ( iob_len ( iob ) );
-	udphdr->chksum = 0; /* optional and we are not using it */
-
-	/* IP header */
-	iphdr = iob_push ( iob, sizeof ( *iphdr ) );
-	memset ( iphdr, 0, sizeof ( *iphdr ) );
-	iphdr->verhdrlen = ( IP_VER | ( sizeof ( *iphdr ) / 4 ) );
-	iphdr->service = IP_TOS;
-	iphdr->len = htons ( iob_len ( iob ) );	
-	iphdr->ttl = IP_TTL;
-	iphdr->protocol = IP_UDP;
-	iphdr->dest.s_addr = dest_addr.sin_addr.s_addr;
-	iphdr->src.s_addr = source_addr.sin_addr.s_addr;
-	iphdr->chksum = tcpip_chksum ( iphdr, sizeof ( *iphdr ) );
-
-	/* Ethernet header */
-	ethhdr = iob_push ( iob, sizeof ( *ethhdr ) );
-	memcpy ( ethhdr->h_dest, dest_eth, ETH_ALEN );
-	memcpy ( ethhdr->h_source, netdev->ll_addr, ETH_ALEN );
-	ethhdr->h_protocol = htons ( ETH_P_IP );
-
-	netdev_tx ( netdev, iob );
-}
-
-struct gdb_transport *gdbudp_configure ( const char *name, struct sockaddr_in *addr ) {
-	struct settings *settings;
-
-	/* Release old network device */
-	netdev_put ( netdev );
-
-	netdev = find_netdev ( name );
-	if ( !netdev ) {
-		return NULL;
-	}
-
-	/* Hold network device */
-	netdev_get ( netdev );
-
-	/* Source UDP port */
-	source_addr.sin_port = ( addr && addr->sin_port ) ? addr->sin_port : htons ( DEFAULT_PORT );
-
-	/* Source IP address */
-	if ( addr && addr->sin_addr.s_addr ) {
-		source_addr.sin_addr.s_addr = addr->sin_addr.s_addr;
-	} else {
-		settings = netdev_settings ( netdev );
-		fetch_ipv4_setting ( settings, &ip_setting, &source_addr.sin_addr );
-		if ( source_addr.sin_addr.s_addr == 0 ) {
-			netdev_put ( netdev );
-			netdev = NULL;
-			return NULL;
-		}
-	}
-
-	return &udp_gdb_transport;
-}
-
-static int gdbudp_init ( int argc, char **argv ) {
-	if ( argc != 1 ) {
-		printf ( "udp: missing <interface> argument\n" );
-		return 1;
-	}
-
-	if ( !gdbudp_configure ( argv[0], NULL ) ) {
-		printf ( "%s: device does not exist or has no IP address\n", argv[0] );
-		return 1;
-	}
-	return 0;
-}
-
-struct gdb_transport udp_gdb_transport __gdb_transport = {
-	.name = "udp",
-	.init = gdbudp_init,
-	.send = gdbudp_send,
-	.recv = gdbudp_recv,
-};