Enter pxeboot, derived from the NetBSD implementation. Initially

intended to support network installs using bsd.rd over TFTP.

Thanks to the many who tested, including Diana Eichert.

ok deraadt@

16 files changed, 1699 insertions, 43 deletions

diff --git a/sys/arch/i386/stand/libsa/Makefile b/sys/arch/i386/stand/libsa/Makefile
index 23a372f994d..1a435b2c74a 100644
--- a/sys/arch/i386/stand/libsa/Makefile
+++ b/sys/arch/i386/stand/libsa/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.42 2003/08/08 07:38:45 deraadt Exp $
+#	$OpenBSD: Makefile,v 1.43 2004/03/19 13:48:18 tom Exp $
 
 .include "${.CURDIR}/../Makefile.inc"
 
@@ -22,7 +22,7 @@ CLEANFILES+=	gidt.o debug_i386.o alloca.o \
 SRCS+=	gidt.S debug_i386.S alloca.S \
 	biosdev.c bioscons.c gateA20.c apmprobe.c \
 	memprobe.c diskprobe.c pciprobe.c smpprobe.c \
-	time.c biosprobe.c
+	time.c biosprobe.c ps2probe.c pxe.c pxe_net.c pxe_call.S
 CLEANFILES+=	unixdev.o unixsys.o nullfs.o
 .endif
 
@@ -42,7 +42,7 @@ SRCS+=	arp.c ether.c in_cksum.c net.c netif.c rpc.c
 SRCS+=	bootp.c bootparam.c rarp.c
 
 # boot filesystems
-SRCS+=	ufs.c nfs.c cd9660.c
+SRCS+=	ufs.c nfs.c tftp.c cd9660.c
 
 # debugger
 SRCS+=	debug.c
diff --git a/sys/arch/i386/stand/libsa/diskprobe.c b/sys/arch/i386/stand/libsa/diskprobe.c
index b2bbf03a091..27cc00c7d47 100644
--- a/sys/arch/i386/stand/libsa/diskprobe.c
+++ b/sys/arch/i386/stand/libsa/diskprobe.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: diskprobe.c,v 1.25 2004/03/09 19:12:13 tom Exp $	*/
+/*	$OpenBSD: diskprobe.c,v 1.26 2004/03/19 13:48:18 tom Exp $	*/
 
 /*
  * Copyright (c) 1997 Tobias Weingartner
@@ -171,7 +171,6 @@ diskprobe(void)
 	bios_diskinfo_t *bios_diskinfo;
 
 	/* Init stuff */
-	printf("disk:");
 	TAILQ_INIT(&disklist);
 
 	/* Do probes */
@@ -203,8 +202,6 @@ diskprobe(void)
 	addbootarg(BOOTARG_CKSUMLEN, sizeof(u_int32_t), &bios_cksumlen);
 	addbootarg(BOOTARG_DISKINFO, i * sizeof(bios_diskinfo_t),
 	    bios_diskinfo);
-
-	printf("\n");
 }
 
 
diff --git a/sys/arch/i386/stand/libsa/exec_i386.c b/sys/arch/i386/stand/libsa/exec_i386.c
index 2274278b864..d4ce2e33d02 100644
--- a/sys/arch/i386/stand/libsa/exec_i386.c
+++ b/sys/arch/i386/stand/libsa/exec_i386.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: exec_i386.c,v 1.29 2004/03/09 19:12:13 tom Exp $	*/
+/*	$OpenBSD: exec_i386.c,v 1.30 2004/03/19 13:48:18 tom Exp $	*/
 
 /*
  * Copyright (c) 1997-1998 Michael Shalayeff
@@ -54,6 +54,9 @@ run_loadfile(u_long *marks, int howto)
 	bios_consdev_t cd;
 	extern int com_speed; /* from bioscons.c */
 
+	if (sa_cleanup != NULL)
+		(*sa_cleanup)();
+
 	cd.consdev = cn_tab->cn_dev;
 	cd.conspeed = com_speed;
 	addbootarg(BOOTARG_CONSDEV, sizeof(cd), &cd);
diff --git a/sys/arch/i386/stand/libsa/gateA20.c b/sys/arch/i386/stand/libsa/gateA20.c
index 38b592bb4df..00bfad10613 100644
--- a/sys/arch/i386/stand/libsa/gateA20.c
+++ b/sys/arch/i386/stand/libsa/gateA20.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: gateA20.c,v 1.9 2003/08/11 06:23:09 deraadt Exp $	*/
+/*	$OpenBSD: gateA20.c,v 1.10 2004/03/19 13:48:18 tom Exp $	*/
 
 /*
  * Ported to boot 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
@@ -43,6 +43,16 @@
 
 
 /*
+ * "Probe"-style routine (no parameters) to turn A20 on
+ */
+void
+gateA20on(void)
+{
+	gateA20(1);
+}
+
+
+/*
  * Gate A20 for high memory
  */
 void
diff --git a/sys/arch/i386/stand/libsa/gidt.S b/sys/arch/i386/stand/libsa/gidt.S
index e0810e8569b..f4a51db396a 100644
--- a/sys/arch/i386/stand/libsa/gidt.S
+++ b/sys/arch/i386/stand/libsa/gidt.S
@@ -1,4 +1,4 @@
-/*	$OpenBSD: gidt.S,v 1.27 2004/01/13 23:54:07 millert Exp $	*/
+/*	$OpenBSD: gidt.S,v 1.28 2004/03/19 13:48:18 tom Exp $	*/
 
 /*
  * Copyright (c) 1997 Michael Shalayeff
@@ -36,11 +36,7 @@
 #undef _LOCORE
 #include <assym.h>
 
-#define	SNULL	0x00
-#define S32TEXT	0x08
-#define	S32DATA	0x10
-#define S16TEXT	0x18
-#define	S16DATA	0x20
+#include "gidt.h"
 
 #ifdef GIDT_DEBUG
 #define	gidt_debug0		; \
@@ -204,11 +200,13 @@ idt:
 	idtb(36); idtb(37); idtb(38); idtb(39); idtb(40); idtb(41)
 	idtb(42); idtb(43); idtb(44); idtb(45); idtb(46); idtb(47)
 #undef idte
+	.globl	Idtr
 Idtr:	.word	. - idt - 1
 	.long	idt
 	.word	0
 
 	.align	8
+	.globl	Idtr_real
 Idtr_real:	.word	1023
 		.long	0
 		.word	0
diff --git a/sys/arch/i386/stand/libsa/gidt.h b/sys/arch/i386/stand/libsa/gidt.h
new file mode 100644
index 00000000000..457709674c1
--- /dev/null
+++ b/sys/arch/i386/stand/libsa/gidt.h
@@ -0,0 +1,35 @@
+/*	$OpenBSD: gidt.h,v 1.1 2004/03/19 13:48:18 tom Exp $	*/
+
+/*
+ * Copyright (c) 2004 Tom Cosgrove
+ * Copyright (c) 1997 Michael Shalayeff
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#define	SNULL	0x00
+#define S32TEXT	0x08
+#define	S32DATA	0x10
+#define S16TEXT	0x18
+#define	S16DATA	0x20
diff --git a/sys/arch/i386/stand/libsa/libsa.h b/sys/arch/i386/stand/libsa/libsa.h
index 4fec71c0b44..f2cae0987f1 100644
--- a/sys/arch/i386/stand/libsa/libsa.h
+++ b/sys/arch/i386/stand/libsa/libsa.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: libsa.h,v 1.38 2003/06/03 20:22:12 mickey Exp $	*/
+/*	$OpenBSD: libsa.h,v 1.39 2004/03/19 13:48:18 tom Exp $	*/
 
 /*
  * Copyright (c) 1996-1999 Michael Shalayeff
@@ -33,9 +33,19 @@
 
 #define	DEFAULT_KERNEL_ADDRESS	0
 
+struct i386_boot_probes {
+	char *name;
+	void (**probes)(void);
+	int count;
+};
+
+extern void (*sa_cleanup)(void);
+
 void gateA20(int);
+void gateA20on(void);
 
 void smpprobe(void);
+void ps2probe(void);
 void pciprobe(void);
 void memprobe(void);
 void diskprobe(void);
@@ -57,6 +67,10 @@ extern const int nbdevs;
 extern u_int cnvmem, extmem; /* XXX global pass memprobe()->machdep_start() */
 extern int ps2model;
 
+extern struct i386_boot_probes probe_list[];
+extern int nibprobes;
+extern void (*devboot_p)(dev_t, char *);
+
 /* diskprobe.c */
 extern bios_diskinfo_t bios_diskinfo[];
 extern u_int32_t bios_cksumlen;
diff --git a/sys/arch/i386/stand/libsa/machdep.c b/sys/arch/i386/stand/libsa/machdep.c
index d74c043a68a..5dc8cf90680 100644
--- a/sys/arch/i386/stand/libsa/machdep.c
+++ b/sys/arch/i386/stand/libsa/machdep.c
@@ -1,6 +1,7 @@
-/*	$OpenBSD: machdep.c,v 1.34 2003/08/11 06:23:09 deraadt Exp $	*/
+/*	$OpenBSD: machdep.c,v 1.35 2004/03/19 13:48:18 tom Exp $	*/
 
 /*
+ * Copyright (c) 2004 Tom Cosgrove
  * Copyright (c) 1997-1999 Michael Shalayeff
  * All rights reserved.
  *
@@ -29,8 +30,6 @@
 #include "libsa.h"
 #include <machine/apmvar.h>
 #include <machine/biosvar.h>
-#include "debug.h"
-#include "ps2probe.h"
 
 volatile struct BIOS_regs	BIOS_regs;
 
@@ -40,30 +39,25 @@ volatile struct BIOS_regs	BIOS_regs;
 #define CKPT(c) /* c */
 #endif
 
-extern int debug;
-int ps2model;
-
 void
 machdep(void)
 {
-	/* here */	CKPT('0');
-	printf("probing:");
-#ifndef _TEST
-	/* probe for a model number, gateA20() neds ps2model */
-	ps2probe();	CKPT('1');
-	gateA20(1);	CKPT('2');
-	debug_init();	CKPT('3');
-#endif
-	/* call console init before doing any io */
-	cninit();	CKPT('4');
-#ifndef _TEST
-	apmprobe();	CKPT('5');
-	pciprobe();	CKPT('6');
-/*	smpprobe();	CKPT('7'); */
-	memprobe();	CKPT('8');
-	printf("\n");
+	int i, j;
+	struct i386_boot_probes *pr;
 
-	diskprobe();	CKPT('9');
-#endif
-			CKPT('Z');
+	/*
+	 * The list of probe routines is now in conf.c.
+	 */
+	for (i = 0; i < nibprobes; i++) {
+		pr = &probe_list[i];
+		if (pr != NULL) {
+			printf("%s:", pr->name);
+
+			for (j = 0; j < pr->count; j++) {
+				(*(pr->probes)[j])();
+			}
+
+			printf("\n");
+		}
+	}
 }
diff --git a/sys/arch/i386/stand/libsa/ps2probe.h b/sys/arch/i386/stand/libsa/ps2probe.c
index 78018bd1a83..898fe5cf54f 100644
--- a/sys/arch/i386/stand/libsa/ps2probe.h
+++ b/sys/arch/i386/stand/libsa/ps2probe.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ps2probe.h,v 1.3 2003/06/03 20:22:12 mickey Exp $	*/
+/*	$OpenBSD: ps2probe.c,v 1.1 2004/03/19 13:48:18 tom Exp $	*/
 
 /*
  * Copyright (c) 2001 Michael Shalayeff
@@ -26,7 +26,11 @@
  * THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-static __inline void
+#include "libsa.h"
+
+int ps2model;
+
+void
 ps2probe(void)
 {
 	char *p;
diff --git a/sys/arch/i386/stand/libsa/pxe.c b/sys/arch/i386/stand/libsa/pxe.c
new file mode 100644
index 00000000000..b159b51f5dc
--- /dev/null
+++ b/sys/arch/i386/stand/libsa/pxe.c
@@ -0,0 +1,547 @@
+/*	$OpenBSD: pxe.c,v 1.1 2004/03/19 13:48:18 tom Exp $ */
+/*	$NetBSD: pxe.c,v 1.5 2003/03/11 18:29:00 drochner Exp $	*/
+
+/*
+ * Copyright 2001 Wasabi Systems, Inc.
+ * All rights reserved.
+ *
+ * Written by Jason R. Thorpe for Wasabi Systems, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed for the NetBSD Project by
+ *	Wasabi Systems, Inc.
+ * 4. The name of Wasabi Systems, Inc. may not be used to endorse
+ *    or promote products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * Copyright (c) 2000 Alfred Perlstein <alfred@freebsd.org>
+ * All rights reserved.
+ * Copyright (c) 2000 Paul Saab <ps@freebsd.org>
+ * All rights reserved.
+ * Copyright (c) 2000 John Baldwin <jhb@freebsd.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Support for the Intel Preboot Execution Environment (PXE).
+ *
+ * PXE provides a UDP implementation as well as a UNDI network device
+ * driver.  UNDI is much more complicated to use than PXE UDP, so we
+ * use PXE UDP as a cheap and easy way to get PXE support.
+ */
+
+#include <sys/param.h>
+#include <sys/socket.h>
+
+#ifdef _STANDALONE
+#include <lib/libkern/libkern.h>
+#else
+#include <string.h>
+#endif
+
+#include <net/if.h>
+
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/ip_var.h>
+#include <netinet/udp.h>
+#include <netinet/udp_var.h>
+
+#include <lib/libsa/stand.h>
+#include <lib/libsa/net.h>
+#include <lib/libsa/bootp.h>
+
+#include "pxeboot.h"
+#include "pxe.h"
+#include "pxe_netif.h"
+
+void	(*pxe_call)(u_int16_t);
+
+void	pxecall_bangpxe(u_int16_t);	/* pxe_call.S */
+void	pxecall_pxenv(u_int16_t);	/* pxe_call.S */
+
+char pxe_command_buf[256];
+
+BOOTPLAYER bootplayer;
+
+struct in_addr servip;			/* for tftp */	/* XXX init this */
+
+/* static struct btinfo_netif bi_netif; */
+
+/*****************************************************************************
+ * This section is a replacement for libsa/udp.c
+ *****************************************************************************/
+
+/* Caller must leave room for ethernet, ip, and udp headers in front!! */
+ssize_t
+pxesendudp(struct iodesc *d, void *pkt, size_t len)
+{
+	t_PXENV_UDP_WRITE *uw = (void *) pxe_command_buf;
+
+	uw->status = 0;
+
+	uw->ip = d->destip.s_addr;
+	uw->gw = gateip.s_addr;
+	uw->src_port = d->myport;
+	uw->dst_port = d->destport;
+	uw->buffer_size = len;
+	uw->buffer.segment = VTOPSEG(pkt);
+	uw->buffer.offset = VTOPOFF(pkt);
+
+	pxe_call(PXENV_UDP_WRITE);
+
+	if (uw->status != PXENV_STATUS_SUCCESS) {
+		/* XXX This happens a lot; it shouldn't. */
+		if (uw->status != PXENV_STATUS_FAILURE)
+			printf("sendudp: PXENV_UDP_WRITE failed: 0x%x\n",
+			    uw->status);
+		return -1;
+	}
+
+	return len;
+}
+
+/*
+ * Receive a UDP packet and validate it for us.
+ * Caller leaves room for the headers (Ether, IP, UDP).
+ */
+ssize_t
+pxereadudp(struct iodesc *d, void *pkt, size_t len, time_t tleft)
+{
+	t_PXENV_UDP_READ *ur = (void *) pxe_command_buf;
+	struct udphdr *uh;
+	struct ip *ip;
+
+	uh = (struct udphdr *)pkt - 1;
+	ip = (struct ip *)uh - 1;
+
+	bzero(ur, sizeof(*ur));
+
+	ur->dest_ip = d->myip.s_addr;
+	ur->d_port = d->myport;
+	ur->buffer_size = len;
+	ur->buffer.segment = VTOPSEG(pkt);
+	ur->buffer.offset = VTOPOFF(pkt);
+
+	/* XXX Timeout unused. */
+
+	pxe_call(PXENV_UDP_READ);
+
+	if (ur->status != PXENV_STATUS_SUCCESS) {
+		/* XXX This happens a lot; it shouldn't. */
+		if (ur->status != PXENV_STATUS_FAILURE)
+			printf("readudp: PXENV_UDP_READ_failed: 0x%0x\n",
+			    ur->status);
+		return -1;
+	}
+
+	ip->ip_src.s_addr = ur->src_ip;
+	uh->uh_sport = ur->s_port;
+	uh->uh_dport = d->myport;
+
+	return ur->buffer_size;
+}
+
+/*
+ * netif layer:
+ *  open, close, shutdown: called from dev_net.c
+ *  socktodesc: called by network protocol modules
+ *
+ * We only allow one open socket.
+ */
+
+static int pxe_inited;
+static struct iodesc desc;
+
+int
+pxe_netif_open()
+{
+	t_PXENV_UDP_OPEN *uo = (void *) pxe_command_buf;
+
+#ifdef NETIF_DEBUG
+	printf("pxe_netif_open()\n");
+#endif
+	if (!pxe_inited) {
+		if (pxe_init(0) != 0)
+			return -1;
+		pxe_inited = 1;
+	}
+	/* BI_ADD(&bi_netif, BTINFO_NETIF, sizeof(bi_netif)); */
+
+	bzero(uo, sizeof(*uo));
+
+	uo->src_ip = bootplayer.yip;
+
+	pxe_call(PXENV_UDP_OPEN);
+
+	if (uo->status != PXENV_STATUS_SUCCESS) {
+		printf("pxe_netif_open: PXENV_UDP_OPEN failed: 0x%x\n",
+		    uo->status);
+		return -1;
+	}
+
+	bcopy(bootplayer.CAddr, desc.myea, ETHER_ADDR_LEN);
+
+	/*
+	 * Since the PXE BIOS has already done DHCP, make sure we
+	 * don't reuse any of its transaction IDs.
+	 */
+	desc.xid = bootplayer.ident;
+
+	return 0;
+}
+
+void
+pxe_netif_close(sock)
+	int sock;
+{
+	t_PXENV_UDP_CLOSE *uc = (void *) pxe_command_buf;
+
+#ifdef NETIF_DEBUG
+	if (sock != 0)
+		printf("pxe_netif_close: sock=%d\n", sock);
+#endif
+
+	uc->status = 0;
+
+	pxe_call(PXENV_UDP_CLOSE);
+
+	if (uc->status != PXENV_STATUS_SUCCESS)
+		printf("pxe_netif_end: PXENV_UDP_CLOSE failed: 0x%x\n",
+		    uc->status);
+}
+
+void
+pxe_netif_shutdown()
+{
+#ifdef NETIF_DEBUG
+	printf("pxe_netif_shutdown()\n");
+#endif
+
+	pxe_shutdown();
+}
+
+struct iodesc *
+pxesocktodesc(sock)
+	int sock;
+{
+
+#ifdef NETIF_DEBUG
+	if (sock != 0)
+		return 0;
+	else
+#endif
+		return &desc;
+}
+
+/*****************************************************************************
+ * PXE initialization and support routines
+ *****************************************************************************/
+
+u_int16_t pxe_command_buf_seg;
+u_int16_t pxe_command_buf_off;
+
+extern u_int16_t bangpxe_off, bangpxe_seg;
+extern u_int16_t pxenv_off, pxenv_seg;
+
+/* static struct btinfo_netif bi_netif; */
+
+void
+pxeprobe(void)
+{
+	if (!pxe_inited) {
+		if (pxe_init(1) == 0) {
+			pxe_inited = 1;
+		}
+	}
+}
+
+int
+pxe_init(int quiet)
+{
+	t_PXENV_GET_CACHED_INFO *gci = (void *) pxe_command_buf;
+	pxenv_t *pxenv;
+	pxe_t *pxe;
+	char *cp;
+	int i;
+	u_int8_t cksum, *ucp;
+
+	/*
+	 * Checking for the presence of PXE is a machine-dependent
+	 * operation.  On the IA-32, this can be done two ways:
+	 *
+	 *	Int 0x1a function 0x5650
+	 *
+	 *	Scan memory for the !PXE or PXENV+ signatures
+	 *
+	 * We do the latter, since the Int method returns a pointer
+	 * to a deprecated structure (PXENV+).
+	 */
+
+	pxenv = NULL;
+	pxe = NULL;
+
+	for (cp = (char *)0xa0000; cp > (char *)0x10000; cp -= 2) {
+		if (pxenv == NULL) {
+			pxenv = (pxenv_t *)cp;
+			if (memcmp(pxenv->Signature, S_SIZE("PXENV+")) != 0)
+				pxenv = NULL;
+			else {
+				for (i = 0, ucp = (u_int8_t *)cp, cksum = 0;
+				     i < pxenv->Length; i++)
+					cksum += ucp[i];
+				if (cksum != 0) {
+					printf("\npxe_init: bad cksum (0x%x) "
+					    "for PXENV+ at 0x%lx\n", cksum,
+					    (u_long) cp);
+					pxenv = NULL;
+				}
+			}
+		}
+
+		if (pxe == NULL) {
+			pxe = (pxe_t *)cp;
+			if (memcmp(pxe->Signature, S_SIZE("!PXE")) != 0)
+				pxe = NULL;
+			else {
+				for (i = 0, ucp = (u_int8_t *)cp, cksum = 0;
+				     i < pxe->StructLength; i++)
+					cksum += ucp[i];
+				if (cksum != 0) {
+					printf("pxe_init: bad cksum (0x%x) "
+					    "for !PXE at 0x%lx\n", cksum,
+					    (u_long) cp);
+					pxe = NULL;
+				}
+			}
+		}
+
+		if (pxe != NULL && pxenv != NULL)
+			break;
+	}
+
+	if (pxe == NULL && pxenv == NULL) {
+		if (!quiet) printf("pxe_init: No PXE BIOS found.\n");
+		return 1;
+	}
+
+	if (pxenv == NULL) {
+		/* assert(pxe != NULL); */
+
+		printf(quiet ? " pxe!" : "PXE present\n");
+	}
+	else {				/* pxenv != NULL */
+		int bang = 0;
+
+		if (pxenv->Version >= 0x0201 && pxe != NULL) {
+			/* 2.1 or greater -- don't use PXENV+ */
+			bang = 1;
+		}
+
+		if (quiet) {
+			printf(" pxe%c[%d.%d]",
+			    (bang ? '!' : '+'),
+			    (pxenv->Version >> 8) & 0xff,
+			     pxenv->Version & 0xff);
+		}
+		else {
+			printf("PXE BIOS Version %d.%d\n",
+			    (pxenv->Version >> 8) & 0xff,
+			     pxenv->Version & 0xff);
+		}
+
+		if (bang) {
+			pxenv = NULL;
+		}
+	}
+
+	if (pxe != NULL) {
+		pxe_call = pxecall_bangpxe;
+		bangpxe_off = pxe->EntryPointSP.offset;
+		bangpxe_seg = pxe->EntryPointSP.segment;
+	} else {
+		pxe_call = pxecall_pxenv;
+		pxenv_off = pxenv->RMEntry.offset;
+		pxenv_seg = pxenv->RMEntry.segment;
+	}
+
+	/*
+	 * Pre-compute the segment/offset of the pxe_command_buf
+	 * to make things nicer in the low-level calling glue.
+	 */
+	pxe_command_buf_seg = VTOPSEG(pxe_command_buf);
+	pxe_command_buf_off = VTOPOFF(pxe_command_buf);
+
+	/*
+	 * Get the cached info from the server's Discovery reply packet.
+	 */
+	bzero(gci, sizeof(*gci));
+	gci->PacketType = PXENV_PACKET_TYPE_CACHED_REPLY;
+	pxe_call(PXENV_GET_CACHED_INFO);
+
+	if (gci->Status != PXENV_STATUS_SUCCESS) {
+		printf("\npxeinfo: PXENV_GET_CACHED_INFO failed: 0x%x\n",
+		    gci->Status);
+		return 1;
+	}
+
+	memcpy(&bootplayer,
+	    SEGOFF2FLAT(gci->Buffer.segment, gci->Buffer.offset),
+	    gci->BufferSize);
+
+	bcopy(&bootplayer.yip, &myip.s_addr, sizeof(myip.s_addr));
+	bcopy(&bootplayer.sip, &servip.s_addr, sizeof(servip.s_addr));
+
+        /* Compute our "natural" netmask. */
+	if (IN_CLASSA(myip.s_addr))
+		netmask = IN_CLASSA_NET;
+	else if (IN_CLASSB(myip.s_addr))
+		netmask = IN_CLASSB_NET;
+	else
+		netmask = IN_CLASSC_NET;
+
+	return 0;
+}
+
+void
+pxeinfo(void)
+{
+	u_int8_t *p;
+#ifdef PXE_DEBUG
+	t_PXENV_UNDI_GET_NIC_TYPE *gnt = (void *) pxe_command_buf;
+#endif
+
+	printf(" mac %s", ether_sprintf(bootplayer.CAddr));
+	p = (u_int8_t *)&myip.s_addr;
+	printf(", ip %d.%d.%d.%d", p[0], p[1], p[2], p[3]);
+	p = (u_int8_t *)&servip.s_addr;
+	printf(", server %d.%d.%d.%d", p[0], p[1], p[2], p[3]);
+
+#ifdef PXE_DEBUG
+	/*
+	 * Get network interface information.
+	 */
+	bzero(gnt, sizeof(*gnt));
+	pxe_call(PXENV_UNDI_GET_NIC_TYPE);
+
+	if (gnt->Status != PXENV_STATUS_SUCCESS) {
+		printf("\npxeinfo: PXENV_UNDI_GET_NIC_TYPE failed: 0x%x\n",
+		    gnt->Status);
+		return;
+	}
+
+	switch (gnt->NicType) {
+	case PCI_NIC:
+	case CardBus_NIC:
+		/* strncpy(bi_netif.ifname, "pxe", sizeof(bi_netif.ifname)); */
+		/* bi_netif.bus = BI_BUS_PCI; */
+		/* bi_netif.addr.tag = gnt->info.pci.BusDevFunc; */
+
+		printf("\nPXE: Using %s device at bus %d device %d function %d\n",
+		    gnt->NicType == PCI_NIC ? "PCI" : "CardBus",
+		    (gnt->info.pci.BusDevFunc >> 8) & 0xff,
+		    (gnt->info.pci.BusDevFunc >> 3) & 0x1f,
+		    gnt->info.pci.BusDevFunc & 0x7);
+		break;
+
+	case PnP_NIC:
+		/* XXX Make bootinfo work with this. */
+		printf("\nPXE: Using PnP device at 0x%x\n",
+		    gnt->info.pnp.CardSelNum);
+	}
+#endif
+}
+
+void
+pxe_shutdown(void)
+{
+	int try;
+	t_PXENV_UNLOAD_STACK *unload = (void *) pxe_command_buf;
+	t_PXENV_UNDI_SHUTDOWN *shutdown = (void *) pxe_command_buf;
+#ifdef PXE_DEBUG
+	t_PXENV_UDP_CLOSE *close = (void *) pxe_command_buf;
+#endif
+
+	if (pxe_call == NULL)
+		return;
+
+	/* Close any open UDP connections.  Ignore return value. */
+	pxe_call(PXENV_UDP_CLOSE);
+#ifdef PXE_DEBUG
+	printf("pxe_shutdown: PXENV_UDP_CLOSE returned 0x%x\n", close->status);
+#endif
+
+	/* Sometimes PXENV_UNDI_SHUTDOWN doesn't work at first */
+	for (try = 3; try > 0; try--) {
+		pxe_call(PXENV_UNDI_SHUTDOWN);
+
+		if (shutdown->Status == PXENV_STATUS_SUCCESS)
+			break;
+
+		printf("pxe_shutdown: PXENV_UNDI_SHUTDOWN failed: 0x%x\n",
+		    shutdown->Status);
+
+		if (try != 1)
+			sleep(1);
+	}
+
+	/* Have multiple attempts at PXENV_UNLOAD_STACK, too */
+	for (try = 3; try > 0; try--) {
+		pxe_call(PXENV_UNLOAD_STACK);
+
+		if (unload->Status == PXENV_STATUS_SUCCESS)
+			break;
+
+		printf("pxe_shutdown: PXENV_UNLOAD_STACK failed: 0x%x\n",
+		    unload->Status);
+
+		if (try != 1)
+			sleep(1);
+	}
+}
diff --git a/sys/arch/i386/stand/libsa/pxe.h b/sys/arch/i386/stand/libsa/pxe.h
new file mode 100644
index 00000000000..37b5ceead0d
--- /dev/null
+++ b/sys/arch/i386/stand/libsa/pxe.h
@@ -0,0 +1,528 @@
+/*	$OpenBSD: pxe.h,v 1.1 2004/03/19 13:48:18 tom Exp $ */
+/*	$NetBSD: pxe.h,v 1.1 2002/02/16 03:37:40 thorpej Exp $	*/
+
+/*
+ * Copyright (c) 2000 Alfred Perlstein <alfred@freebsd.org>
+ * All rights reserved.
+ * Copyright (c) 2000 Paul Saab <ps@freebsd.org>
+ * All rights reserved.
+ * Copyright (c) 2000 John Baldwin <jhb@freebsd.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * Note that these structures and types are named according to
+ * the Intel PXE documentation.
+ */
+
+#define	S_SIZE(s)	s, sizeof(s) - 1
+
+#define	IP_STR		"%d.%d.%d.%d"
+#define	IP_ARGS(ip)					\
+	(int)(ip >> 24) & 0xff, (int)(ip >> 16) & 0xff, \
+	(int)(ip >> 8) & 0xff, (int)ip & 0xff
+
+#define	MAC_STR		"%02x:%02x:%02x:%02x:%02x:%02x"
+#define	MAC_ARGS(mac)					\
+	mac[0], mac[1], mac[2], mac[3], mac[4], mac[5] 
+
+typedef struct {
+	uint16_t		offset;
+	uint16_t		segment;
+} SEGOFF16_t __attribute__((__packed__));
+
+typedef struct {
+	uint16_t		Seg_Addr;
+	uint32_t		Phy_Addr;
+	uint16_t		Seg_Size;
+} SEGDESC_t __attribute__((__packed__));
+
+typedef	uint16_t		SEGSEL_t;
+typedef	uint16_t		PXENV_STATUS_t;
+typedef	uint32_t		IP4_t;
+typedef	uint32_t		ADDR32_t;
+typedef	uint16_t		UDP_PORT_t;
+
+#define	MAC_ADDR_LEN		16
+typedef	uint8_t			MAC_ADDR[MAC_ADDR_LEN];
+
+/* PXENV+ */
+typedef struct {
+	uint8_t		Signature[6];	/* 'PXENV+' */
+	uint16_t	Version;	/* MSB = major, LSB = minor */
+	uint8_t		Length;		/* structure length */
+	uint8_t		Checksum;	/* checksum pad */
+	SEGOFF16_t	RMEntry;	/* SEG:OFF to PXE entry point */
+	/* don't use PMOffset and PMSelector (from the 2.1 PXE manual) */
+	uint32_t	PMOffset;	/* Protected mode entry */
+	SEGSEL_t	PMSelector;	/* Protected mode selector */
+	SEGSEL_t	StackSeg;	/* Stack segment address */
+	uint16_t	StackSize;	/* Stack segment size (bytes) */
+	SEGSEL_t	BC_CodeSeg;	/* BC Code segment address */
+	uint16_t	BC_CodeSize;	/* BC Code segment size (bytes) */
+	SEGSEL_t	BC_DataSeg;	/* BC Data segment address */
+	uint16_t	BC_DataSize;	/* BC Data segment size (bytes) */
+	SEGSEL_t	UNDIDataSeg;	/* UNDI Data segment address */
+	uint16_t	UNDIDataSize;	/* UNDI Data segment size (bytes) */
+	SEGSEL_t	UNDICodeSeg;	/* UNDI Code segment address */
+	uint16_t	UNDICodeSize;	/* UNDI Code segment size (bytes) */
+	SEGOFF16_t	PXEPtr;		/* SEG:OFF to !PXE struct, 
+					   only present when Version > 2.1 */
+} __attribute__((__packed__)) pxenv_t;
+
+/* !PXE */
+typedef struct {
+	uint8_t		Signature[4];
+	uint8_t		StructLength;
+	uint8_t		StructCksum;
+	uint8_t		StructRev;
+	uint8_t		reserved_1;
+	SEGOFF16_t	UNDIROMID;
+	SEGOFF16_t	BaseROMID;
+	SEGOFF16_t	EntryPointSP;
+	SEGOFF16_t	EntryPointESP;
+	SEGOFF16_t	StatusCallout;
+	uint8_t		reserved_2;
+	uint8_t		SegDescCn;
+	SEGSEL_t	FirstSelector;
+	SEGDESC_t	Stack;
+	SEGDESC_t	UNDIData;
+	SEGDESC_t	UNDICode;
+	SEGDESC_t	UNDICodeWrite;
+	SEGDESC_t	BC_Data;
+	SEGDESC_t	BC_Code;
+	SEGDESC_t	BC_CodeWrite;
+} __attribute__((__packed__)) pxe_t;
+
+#define	PXENV_START_UNDI		0x0000
+typedef struct {
+	PXENV_STATUS_t	Status;
+	uint16_t	ax;
+	uint16_t	bx;
+	uint16_t	dx;
+	uint16_t	di;
+	uint16_t	es;
+} __attribute__((__packed__)) t_PXENV_START_UNDI;
+
+#define	PXENV_UNDI_STARTUP		0x0001
+typedef struct {
+	PXENV_STATUS_t	Status;
+} __attribute__((__packed__)) t_PXENV_UNDI_STARTUP;
+
+#define	PXENV_UNDI_CLEANUP		0x0002
+typedef struct {
+	PXENV_STATUS_t	Status;
+} __attribute__((__packed__)) t_PXENV_UNDI_CLEANUP;
+
+#define	PXENV_UNDI_INITIALIZE		0x0003
+typedef struct {
+	PXENV_STATUS_t	Status;
+	ADDR32_t	ProtocolIni;	/* Phys addr of a copy of the
+					   driver module */
+	uint8_t		reserved[8];
+} __attribute__((__packed__)) t_PXENV_UNDI_INITALIZE;
+
+
+#define	MAXNUM_MCADDR		8
+typedef struct {
+	PXENV_STATUS_t	Status;
+	uint16_t	MCastAddrCount;
+	MAC_ADDR	McastAddr[MAXNUM_MCADDR];
+} __attribute__((__packed__)) t_PXENV_UNDI_MCAST_ADDRESS;
+
+#define	PXENV_UNDI_RESET_ADAPTER	0x0004		
+typedef struct {
+	PXENV_STATUS_t	Status;
+	t_PXENV_UNDI_MCAST_ADDRESS R_Mcast_Buf;
+} __attribute__((__packed__)) t_PXENV_UNDI_RESET;
+
+#define	PXENV_UNDI_SHUTDOWN		0x0005
+typedef struct {
+	PXENV_STATUS_t	Status;
+} __attribute__((__packed__)) t_PXENV_UNDI_SHUTDOWN;
+
+#define	PXENV_UNDI_OPEN			0x0006
+typedef struct {
+	PXENV_STATUS_t	Status;
+	uint16_t	OpenFlag;
+	uint16_t	PktFilter;
+#	define FLTR_DIRECTED	0x0001
+#	define FLTR_BRDCST	0x0002
+#	define FLTR_PRMSCS	0x0003
+#	define FLTR_SRC_RTG	0x0004
+
+	t_PXENV_UNDI_MCAST_ADDRESS R_Mcast_Buf;
+} __attribute__((__packed__)) t_PXENV_UNDI_OPEN;
+
+#define	PXENV_UNDI_CLOSE		0x0007
+typedef struct {
+	PXENV_STATUS_t	Status;
+} __attribute__((__packed__)) t_PXENV_UNDI_CLOSE;
+
+#define	PXENV_UNDI_TRANSMIT		0x0008
+typedef struct {
+	PXENV_STATUS_t	Status;
+	uint8_t		Protocol;
+#	define P_UNKNOWN	0
+#	define P_IP		1
+#	define P_ARP		2
+#	define P_RARP		3
+
+	uint8_t		XmitFlag;
+#	define XMT_DESTADDR	0x0000
+#	define XMT_BROADCAST	0x0001
+
+	SEGOFF16_t	DestAddr;
+	SEGOFF16_t	TBD;
+	uint32_t	Reserved[2];
+} __attribute__((__packed__)) t_PXENV_UNDI_TRANSMIT;
+
+#define	MAX_DATA_BLKS		8
+typedef struct {
+	uint16_t	ImmedLength;
+	SEGOFF16_t	Xmit;
+	uint16_t	DataBlkCount;
+	struct	DataBlk {
+		uint8_t		TDPtrType;
+		uint8_t		TDRsvdByte;
+		uint16_t	TDDataLen;
+		SEGOFF16_t	TDDataPtr;
+	} DataBlock[MAX_DATA_BLKS];
+} __attribute__((__packed__)) t_PXENV_UNDI_TBD;
+
+#define	PXENV_UNDI_SET_MCAST_ADDRESS	0x0009
+typedef struct {
+	PXENV_STATUS_t	Status;
+	t_PXENV_UNDI_MCAST_ADDRESS R_Mcast_Buf;
+} __attribute__((__packed__)) t_PXENV_UNDI_SET_MCAST_ADDR;
+
+#define	PXENV_UNDI_SET_STATION_ADDRESS	0x000A
+typedef struct {
+	PXENV_STATUS_t	Status;
+	MAC_ADDR	StationAddress;		/* Temp MAC addres to use */
+} __attribute__((__packed__)) t_PXENV_UNDI_SET_STATION_ADDR;
+
+#define	PXENV_UNDI_SET_PACKET_FILTER	0x000B
+typedef struct {
+	PXENV_STATUS_t	Status;
+	uint8_t		filter;			/* see UNDI_OPEN (0x0006) */
+} __attribute__((__packed__)) t_PXENV_UNDI_SET_PACKET_FILTER;
+
+#define	PXENV_UNDI_GET_INFORMATION	0x000C
+typedef struct {
+	PXENV_STATUS_t	Status;
+	uint16_t	BaseIo;			/* Adapter base I/O address */
+	uint16_t	IntNumber;		/* Adapter IRQ number */
+	uint16_t	MaxTranUnit;		/* Adapter maximum transmit
+						   unit */
+	uint16_t	HwType;			/* Type of protocol at the
+						   hardware addr */
+#	define ETHER_TYPE	1
+#	define EXP_ETHER_TYPE	2
+#	define IEEE_TYPE	6
+#	define ARCNET_TYPE	7
+
+	uint16_t	HwAddrLen;		/* Length of hardware address */
+	MAC_ADDR	CurrentNodeAddress;	/* Current hardware address */
+	MAC_ADDR	PermNodeAddress;	/* Permanent hardware address */
+	SEGSEL_t	ROMAddress;		/* Real mode ROM segment
+						   address */
+	uint16_t	RxBufCt;		/* Receive queue length */
+	uint16_t	TxBufCt;		/* Transmit queue length */
+} __attribute__((__packed__)) t_PXENV_UNDI_GET_INFORMATION;
+
+#define	PXENV_UNDI_GET_STATISTICS	0x000D
+typedef struct {
+	PXENV_STATUS_t	Status;
+	uint32_t	XmitGoodFrames;		/* Number of successful
+						   transmissions */
+	uint32_t	RcvGoodFrames;		/* Number of good frames
+						   received */
+	uint32_t	RcvCRCErrors;		/* Number of frames with
+						   CRC errors */
+	uint32_t	RcvResourceErrors;	/* Number of frames dropped */
+} __attribute__((__packed__)) t_PXENV_UNDI_GET_STATISTICS;
+
+#define	PXENV_UNDI_CLEAR_STATISTICS	0x000E
+typedef struct {
+	PXENV_STATUS_t	Status;
+} __attribute__((__packed__)) t_PXENV_UNDI_CLEAR_STATISTICS;
+
+#define	PXENV_UNDI_INITIATE_DIAGS	0x000F
+typedef struct {
+	PXENV_STATUS_t	Status;
+} __attribute__((__packed__)) t_PXENV_UNDI_INITIATE_DIAGS;
+
+#define	PXENV_UNDI_FORCE_INTERRUPT	0x0010
+typedef struct {
+	PXENV_STATUS_t	Status;
+} __attribute__((__packed__)) t_PXENV_UNDI_FORCE_INTERRUPT;
+
+#define	PXENV_UNDI_GET_MCAST_ADDRESS	0x0011
+typedef struct {
+	PXENV_STATUS_t	Status;
+	IP4_t		InetAddr;		/* IP mulicast address */
+	MAC_ADDR	MediaAddr;		/* MAC multicast address */
+} __attribute__((__packed__)) t_PXENV_UNDI_GET_MCAST_ADDR;
+
+#define	PXENV_UNDI_GET_NIC_TYPE		0x0012
+typedef struct {
+	PXENV_STATUS_t	Status;
+	uint8_t		NicType;		/* Type of NIC */
+#	define PCI_NIC		2
+#	define PnP_NIC		3
+#	define CardBus_NIC	4
+
+	union {
+		struct {
+			uint16_t	Vendor_ID;
+			uint16_t	Dev_ID;
+			uint8_t		Base_Class;
+			uint8_t		Sub_Class;
+			uint8_t		Prog_Intf;
+			uint8_t		Rev;
+			uint16_t	BusDevFunc;
+			uint16_t	SubVendor_ID;
+			uint16_t	SubDevice_ID;
+		} pci, cardbus;
+		struct {
+			uint32_t	EISA_Dev_ID;
+			uint8_t		Base_Class;
+			uint8_t		Sub_Class;
+			uint8_t		Prog_Intf;
+			uint16_t	CardSelNum;
+		} pnp;
+	} info;
+} __attribute__((__packed__)) t_PXENV_UNDI_GET_NIC_TYPE;
+
+#define	PXENV_UNDI_GET_IFACE_INFO	0x0013
+typedef struct {
+	PXENV_STATUS_t	Status;
+	uint8_t		IfaceType[16];		/* Name of MAC type in ASCII. */
+	uint32_t	LinkSpeed;		/* Defined in NDIS 2.0 spec */
+	uint32_t	ServiceFlags;		/* Defined in NDIS 2.0 spec */
+	uint32_t	Reserved[4];		/* must be 0 */
+} __attribute__((__packed__)) t_PXENV_UNDI_GET_NDIS_INFO;
+
+#define	PXENV_UNDI_ISR			0x0014
+typedef struct {
+	PXENV_STATUS_t	Status;
+	uint16_t	FuncFlag;		/* PXENV_UNDI_ISR_OUT_xxx */
+	uint16_t	BufferLength;		/* Length of Frame */
+	uint16_t	FrameLength;		/* Total length of reciever
+						   frame */
+	uint16_t	FrameHeaderLength;	/* Length of the media header
+						   in Frame */
+	SEGOFF16_t	Frame;			/* receive buffer */
+	uint8_t		ProtType;		/* Protocol type */
+	uint8_t		PktType;		/* Packet Type */
+#	define PXENV_UNDI_ISR_IN_START		1
+#	define PXENV_UNDI_ISR_IN_PROCESS	2
+#	define PXENV_UNDI_ISR_IN_GET_NEXT	3
+
+	/* one of these will be returned for PXENV_UNDI_ISR_IN_START */
+#	define PXENV_UNDI_ISR_OUT_OURS		0
+#	define PXENV_UNDI_ISR_OUT_NOT_OUTS	1
+
+	/*
+	 * one of these will bre returnd for PXEND_UNDI_ISR_IN_PROCESS
+	 * and PXENV_UNDI_ISR_IN_GET_NEXT
+	 */
+#	define PXENV_UNDI_ISR_OUT_DONE		0
+#	define PXENV_UNDI_ISR_OUT_TRANSMIT	2
+#	define PXENV_UNDI_ISR_OUT_RECIEVE	3
+#	define PXENV_UNDI_ISR_OUT_BUSY		4
+} __attribute__((__packed__)) t_PXENV_UNDI_ISR;
+
+#define	PXENV_STOP_UNDI			0x0015
+typedef struct {
+	PXENV_STATUS_t	Status;
+} __attribute__((__packed__)) t_PXENV_STOP_UNDI;
+
+#define	PXENV_TFTP_OPEN			0x0020
+typedef struct {
+	PXENV_STATUS_t	Status;
+	IP4_t		ServerIPAddress;
+	IP4_t		GatewayIPAddress;
+	uint8_t		FileName[128];
+	UDP_PORT_t	TFTPPort;
+	uint16_t	PacketSize;
+} __attribute__((__packed__)) t_PXENV_TFTP_OPEN;
+
+#define	PXENV_TFTP_CLOSE		0x0021
+typedef struct {
+	PXENV_STATUS_t	Status;
+} __attribute__((__packed__)) t_PXENV_TFTP_CLOSE;
+
+#define	PXENV_TFTP_READ			0x0022
+typedef struct {
+	PXENV_STATUS_t	Status;
+	uint16_t	PacketNumber;
+	uint16_t	BufferSize;
+	SEGOFF16_t	Buffer;
+} __attribute__((__packed__)) t_PXENV_TFTP_READ;
+
+#define	PXENV_TFTP_READ_FILE		0x0023
+typedef struct {
+	PXENV_STATUS_t	Status;
+	uint8_t		FileName[128];
+	uint32_t	BufferSize;
+	ADDR32_t	Buffer;
+	IP4_t		ServerIPAddress;
+	IP4_t		GatewayIPAddress;
+	IP4_t		McastIPAddress;
+	UDP_PORT_t	TFTPClntPort;
+	UDP_PORT_t	TFTPSrvPort;
+	uint16_t	TFTPOpenTimeOut;
+	uint16_t	TFTPReopenDelay;
+} __attribute__((__packed__)) t_PXENV_TFTP_READ_FILE;
+
+#define	PXENV_TFTP_GET_FSIZE		0x0025
+typedef struct {
+	PXENV_STATUS_t	Status;
+	IP4_t		ServerIPAddress;
+	IP4_t		GatewayIPAddress;
+	uint8_t		FileName[128];
+	uint32_t	FileSize;
+} __attribute__((__packed__)) t_PXENV_TFTP_GET_FSIZE;
+
+#define	PXENV_UDP_OPEN			0x0030
+typedef struct {
+	PXENV_STATUS_t	status;
+	IP4_t		src_ip;		/* IP address of this station */
+} __attribute__((__packed__)) t_PXENV_UDP_OPEN;
+
+#define	PXENV_UDP_CLOSE			0x0031
+typedef struct {
+	PXENV_STATUS_t	status;
+} __attribute__((__packed__)) t_PXENV_UDP_CLOSE;
+
+#define	PXENV_UDP_READ			0x0032
+typedef struct {
+	PXENV_STATUS_t	status;
+	IP4_t		src_ip;		/* IP of sender */
+	IP4_t		dest_ip;	/* Only accept packets sent to
+					   this IP */
+	UDP_PORT_t	s_port;		/* UDP source port of sender */
+	UDP_PORT_t	d_port;		/* Only accept packets sent to
+					   this port */
+	uint16_t	buffer_size;	/* Size of the packet buffer */
+	SEGOFF16_t	buffer;		/* SEG:OFF to the packet buffer */
+} __attribute__((__packed__)) t_PXENV_UDP_READ;
+
+#define	PXENV_UDP_WRITE			0x0033
+typedef struct {
+	PXENV_STATUS_t	status;
+	IP4_t		ip;		/* dest ip addr */
+	IP4_t		gw;		/* ip gateway */
+	UDP_PORT_t	src_port;	/* source udp port */
+	UDP_PORT_t	dst_port;	/* destination udp port */
+	uint16_t	buffer_size;	/* Size of the packet buffer */
+	SEGOFF16_t	buffer;		/* SEG:OFF to the packet buffer */
+} __attribute__((__packed__)) t_PXENV_UDP_WRITE;
+
+#define	PXENV_UNLOAD_STACK		0x0070
+typedef struct {
+	PXENV_STATUS_t	Status;
+	uint8_t		reserved[10];
+} __attribute__((__packed__)) t_PXENV_UNLOAD_STACK;
+
+
+#define	PXENV_GET_CACHED_INFO		0x0071
+typedef struct {
+	PXENV_STATUS_t	Status;
+	uint16_t	PacketType;	/* type (defined right here) */
+#	define PXENV_PACKET_TYPE_DHCP_DISCOVER  1
+#	define PXENV_PACKET_TYPE_DHCP_ACK       2
+#	define PXENV_PACKET_TYPE_CACHED_REPLY   3
+	uint16_t	BufferSize;	/* max to copy, leave at 0 for
+					   pointer */
+	SEGOFF16_t	Buffer;		/* copy to, leave at 0 for pointer */
+	uint16_t	BufferLimit;	/* max size of buffer in BC dataseg ? */
+} __attribute__((__packed__)) t_PXENV_GET_CACHED_INFO;
+
+
+/* structure filled in by PXENV_GET_CACHED_INFO 
+ * (how we determine which IP we downloaded the initial bootstrap from)
+ * words can't describe...
+ */
+typedef struct {
+	uint8_t		opcode;
+#	define BOOTP_REQ	1
+#	define BOOTP_REP	2
+	uint8_t		Hardware;	/* hardware type */
+	uint8_t		Hardlen;	/* hardware addr len */
+	uint8_t		Gatehops;	/* zero it */
+	uint32_t	ident;		/* random number chosen by client */
+	uint16_t	seconds;	/* seconds since did initial
+					   bootstrap */
+	uint16_t	Flags;		/* seconds since did initial
+					   bootstrap */
+#	define BOOTP_BCAST	0x8000		/* ? */
+	IP4_t		cip;		/* Client IP */
+	IP4_t		yip;		/* Your IP */
+	IP4_t		sip;		/* IP to use for next boot stage */
+	IP4_t		gip;		/* Relay IP ? */
+	MAC_ADDR	CAddr;		/* Client hardware address */
+	uint8_t		Sname[64];	/* Server's hostname (Optional) */
+	uint8_t		bootfile[128];	/* boot filename */
+	union {
+#		if 1
+#		define BOOTP_DHCPVEND  1024    /* DHCP extended vendor
+						  field size */
+#		else
+#		define BOOTP_DHCPVEND  312	/* DHCP standard vendor
+						   field size */
+#		endif
+		uint8_t		d[BOOTP_DHCPVEND]; /* raw array of
+						      vendor/dhcp options */
+		struct {
+			uint8_t		magic[4];  /* DHCP magic cookie */
+#			ifndef		VM_RFC1048
+#			define		VM_RFC1048	0x63825363L	/* ? */
+#			endif
+			uint32_t	flags;	   /* bootp flags/opcodes */
+			uint8_t		pad[56];   /* I don't think intel
+						      knows what a union
+						      does... */
+		} v;
+	} vendor;
+} __attribute__((__packed__)) BOOTPLAYER;
+
+#define	PXENV_RESTART_TFTP		0x0073
+#define	t_PXENV_RESTART_TFTP		t_PXENV_TFTP_READ_FILE
+
+#define	PXENV_START_BASE		0x0075
+typedef struct {
+	PXENV_STATUS_t	Status;
+} __attribute__((__packed__)) t_PXENV_START_BASE;
+
+#define	PXENV_STOP_BASE			0x0076
+typedef struct {
+	PXENV_STATUS_t	Status;
+} __attribute__((__packed__)) t_PXENV_STOP_BASE;
+
+#define	PXENV_STATUS_SUCCESS		0
+#define	PXENV_STATUS_FAILURE		1
+/* ...there are tons more, but we don't really care about them right now... */
diff --git a/sys/arch/i386/stand/libsa/pxe_call.S b/sys/arch/i386/stand/libsa/pxe_call.S
new file mode 100644
index 00000000000..5085b79b653
--- /dev/null
+++ b/sys/arch/i386/stand/libsa/pxe_call.S
@@ -0,0 +1,202 @@
+/*	$OpenBSD: pxe_call.S,v 1.1 2004/03/19 13:48:18 tom Exp $ */
+/*	$NetBSD: pxe_call.S,v 1.2 2002/03/27 17:24:22 kanaoka Exp $	*/
+
+/*
+ * Copyright 2001 Wasabi Systems, Inc.
+ * All rights reserved.
+ *
+ * Written by Jason R. Thorpe for Wasabi Systems, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed for the NetBSD Project by
+ *	Wasabi Systems, Inc.
+ * 4. The name of Wasabi Systems, Inc. may not be used to endorse
+ *    or promote products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * Low level PXE BIOS call glue.
+ */
+
+#include <machine/asm.h>
+#include <assym.h>
+
+#include "gidt.h"
+
+ENTRY(pxecall_bangpxe)
+	.code32
+	pushl	%ebp
+	movl	%esp, %ebp
+	pushl	%ebx
+	pushl	%ecx
+	pushl	%edx
+
+	/* For simplicity, just move all 32 bits. */
+	movl	8(%ebp), %ebx
+
+	pushw	_C_LABEL(pxe_command_buf_seg)
+	pushw	_C_LABEL(pxe_command_buf_off)
+	pushw	%bx
+
+	call	prot_to_real			/* Enter real mode */
+	.code16
+
+	sti
+	/* The encoding is: 0x9a offlo offhi seglo seghi */
+	lcall	$0, $0xffff
+	.globl	_C_LABEL(bangpxe_off)
+_C_LABEL(bangpxe_off) = . - 4
+	.globl	_C_LABEL(bangpxe_seg)
+_C_LABEL(bangpxe_seg) = . - 2
+
+	cli
+	call	real_to_prot			/* Leave real mode */
+	.code32
+
+	add	$6, %esp
+
+	popl	%edx
+	popl	%ecx
+	popl	%ebx
+	popl	%ebp
+	ret
+
+ENTRY(pxecall_pxenv)
+	.code32
+	pushl	%ebp
+	movl	%esp, %ebp
+	pushl	%ebx
+	pushl	%ecx
+	pushl	%edx
+	pushl	%edi
+
+	/* For simplicity, just move all 32 bits. */
+	movl	8(%ebp), %ebx
+
+	call	prot_to_real			/* Enter real mode */
+	.code16
+
+	/* prot_to_real() has already set %es to BOOTSEG */
+	lea	_C_LABEL(pxe_command_buf), %di
+
+	/* The encoding is: 0x9a offlo offhi seglo seghi */
+	lcall	$0, $0xffff
+	.globl	_C_LABEL(pxenv_off)
+_C_LABEL(pxenv_off) = . - 4
+	.globl	_C_LABEL(pxenv_seg)
+_C_LABEL(pxenv_seg) = . - 2
+
+	call	real_to_prot			/* Leave real mode */
+	.code32
+
+	popl	%edi
+	popl	%edx
+	popl	%ecx
+	popl	%ebx
+	popl	%ebp
+	ret
+
+/*
+ * prot_to_real()
+ *
+ * Switch the processor back into real mode.
+ */
+	.globl	prot_to_real
+prot_to_real:
+	.code32
+	ljmp	$S16TEXT, $p2r16 - LINKADDR
+p2r16:
+	.code16
+
+	movw	$S16DATA, %ax
+	movw	%ax, %ds
+	movw	%ax, %es
+
+	movl	%cr0, %eax		/* Disable protected mode */
+	andl 	$~CR0_PE, %eax
+	movl	%eax, %cr0
+
+	/* reload real cs:ip */
+	data32 ljmp	$(LINKADDR >> 4), $p2r16real - LINKADDR
+p2r16real:
+	xorw	%ax, %ax		/* Reset segment registers: */
+	movw	%ax, %ds		/* %ds: so we can get at Idtr_real */
+	movw	%ax, %ss		/* %ss: for our stack */
+
+	.extern	Idtr_real
+	data32 addr32 lidt Idtr_real;	/* Set up IDT for real mode */
+
+	movw	%cs, %ax
+	movw	%ax, %ds
+	movw	%ax, %es		/* Set %ds = %es = %cs */
+
+	/*
+	 * We were called from 32-bit mode, so there's a 32-bit
+	 * return address on the stack.  No segment.  This is within
+	 * the flat memory model, so we need to adjust it back so
+	 * that it's relative to our 16-bit %cs.
+	 */
+	popl	%eax
+	subl	$LINKADDR, %eax
+	pushw	%ax
+	ret
+
+/*
+ * real_to_prot()
+ *
+ * Switch the processor back into protected mode.
+ */
+	.globl	real_to_prot
+real_to_prot:
+	.code16
+
+	xorw	%ax, %ax
+	movw	%ax, %ds		/* Load %ds so we can get at Gdtr */
+	data32 addr32 lgdt Gdtr		/* Load the GDT */
+
+	movl	%cr0, %eax		/* Enable protected mode */
+	orl	$CR0_PE, %eax
+	movl	%eax, %cr0
+
+	data32 ljmp	$S32TEXT, $r2p32 /* Reload %cs, flush pipeline */
+r2p32:
+	.code32
+	/* Reload 32-bit %ds, %ss, %es */
+	movl	$S32DATA, %eax
+	mov	%ax, %ds
+	mov	%ax, %ss
+	mov	%ax, %es
+
+	/* Load IDT for debugger and DOS/BIOS interface */
+	.extern	Idtr
+	lidt	Idtr
+
+	xorl	%eax, %eax
+	popw	%ax			/* 16-bit return addr on stack */
+	addl	$LINKADDR, %eax
+	pushl	%eax			/* Now have correct 32-bit ret addr */
+	ret
+
+	.end
diff --git a/sys/arch/i386/stand/libsa/pxe_net.c b/sys/arch/i386/stand/libsa/pxe_net.c
new file mode 100644
index 00000000000..df252771486
--- /dev/null
+++ b/sys/arch/i386/stand/libsa/pxe_net.c
@@ -0,0 +1,184 @@
+/*	$OpenBSD: pxe_net.c,v 1.1 2004/03/19 13:48:18 tom Exp $	*/
+/*	$NetBSD: dev_net.c,v 1.4 2003/03/12 13:15:08 drochner Exp $	*/
+
+/*-
+ * Copyright (c) 1997 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Gordon W. Ross.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *        This product includes software developed by the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This module implements a "raw device" interface suitable for
+ * use by the stand-alone I/O library NFS and TFTP code.  This interface
+ * does not support any "block" access, and exists only for the
+ * purpose of initializing the network interface and getting boot
+ * parameters.
+ *
+ * At open time, this does:
+ *
+ * find interface       - netif_open()
+ * BOOTP for IP address - bootp()
+ */
+
+#include <machine/stdarg.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+
+#include <lib/libkern/libkern.h>
+
+#include <lib/libsa/stand.h>
+#include <lib/libsa/net.h>
+#include "pxe_netif.h"
+#include "pxe_net.h"
+
+static int netdev_sock = -1;
+static int netdev_opens;
+
+int net_getparams(int);
+
+/*
+ * Called by devopen after it sets f->f_dev to our devsw entry.
+ * This opens the low-level device and sets f->f_devdata.
+ * This is declared with variable arguments...
+ */
+int
+net_open(struct open_file *f, ...)
+{
+	int error = 0;
+
+#ifdef	NETIF_DEBUG
+	if (debug)
+		printf("net_open()\n");
+#endif
+
+	/* On first open, do netif open, mount, etc. */
+	if (netdev_opens == 0) {
+		/* Find network interface. */
+		if (netdev_sock < 0) {
+			netdev_sock = pxe_netif_open();
+			if (netdev_sock < 0) {
+				printf("net_open: netif_open() failed\n");
+				return ENXIO;
+			}
+#ifdef	NETIF_DEBUG
+			if (debug)
+				printf("net_open: netif_open() succeeded\n");
+#endif
+		}
+#ifdef notyet
+		if (rootip.s_addr == 0) {
+			/* Get root IP address, and path, etc. */
+			error = net_getparams(netdev_sock);
+			if (error) {
+				/* getparams makes its own noise */
+				pxe_netif_close(netdev_sock);
+				netdev_sock = -1;
+				return error;
+			}
+		}
+#endif
+	}
+	netdev_opens++;
+	f->f_devdata = &netdev_sock;
+	return error;
+}
+
+int
+net_close(struct open_file *f)
+{
+#ifdef	NETIF_DEBUG
+	if (debug)
+		printf("net_close: opens=%d\n", netdev_opens);
+#endif
+
+	/* On last close, do netif close, etc. */
+	f->f_devdata = NULL;
+	/* Extra close call? */
+	if (netdev_opens <= 0)
+		return 0;
+	netdev_opens--;
+	/* Not last close? */
+	if (netdev_opens > 0)
+		return 0;
+	rootip.s_addr = 0;
+	if (netdev_sock >= 0) {
+#ifdef	NETIF_DEBUG
+		if (debug)
+			printf("net_close: calling netif_close()\n");
+#endif
+		pxe_netif_close(netdev_sock);
+		netdev_sock = -1;
+	}
+	return 0;
+}
+
+int
+net_ioctl(struct open_file *f, u_long cmd, void *data)
+{
+	return EIO;
+}
+
+int
+net_strategy(void *devdata, int rw, daddr_t blk, size_t size, void *buf,
+    size_t *rsize)
+{
+	return EIO;
+}
+
+
+/*
+ * Get info for network boot: our IP address, our hostname,
+ * server IP address, and our root path on the server.
+ */
+extern int bootp(int);
+
+int
+net_getparams(int sock)
+{
+	/*
+	 * Try to get boot info using BOOTP.  If we succeed, then
+	 * the server IP address, gateway, and root path will all
+	 * be initialized.  If any remain uninitialized, we will
+	 * use RARP and RPC/bootparam (the Sun way) to get them.
+	 */
+	bootp(sock);
+	if (myip.s_addr != 0)
+		return 0;
+	if (debug)
+		printf("net_getparams: BOOTP failed\n");
+
+	return EIO;
+}
diff --git a/sys/arch/i386/stand/libsa/pxe_net.h b/sys/arch/i386/stand/libsa/pxe_net.h
new file mode 100644
index 00000000000..406c15599c4
--- /dev/null
+++ b/sys/arch/i386/stand/libsa/pxe_net.h
@@ -0,0 +1,44 @@
+/*	$OpenBSD: pxe_net.h,v 1.1 2004/03/19 13:48:18 tom Exp $	*/
+/*	$NetBSD$	*/
+
+/*-
+ * Copyright (c) 1997 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Gordon W. Ross.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *        This product includes software developed by the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* pxe_net.c */
+int	net_open(struct open_file *, ...);
+int	net_close(struct open_file *);
+int	net_ioctl(struct open_file *, u_long, void *);
+int	net_strategy(void *, int , daddr_t , size_t, void *, size_t *);
diff --git a/sys/arch/i386/stand/libsa/pxe_netif.h b/sys/arch/i386/stand/libsa/pxe_netif.h
new file mode 100644
index 00000000000..b8cddcc9cc9
--- /dev/null
+++ b/sys/arch/i386/stand/libsa/pxe_netif.h
@@ -0,0 +1,43 @@
+/*	$OpenBSD: pxe_netif.h,v 1.1 2004/03/19 13:48:18 tom Exp $ */
+/* $NetBSD$ */
+
+/*-
+ * Copyright (c) 1997 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Gordon W. Ross.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *        This product includes software developed by the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* pxe.c */
+int pxe_netif_open(void);
+void pxe_netif_close(int);
+void pxe_netif_shutdown(void);
diff --git a/sys/arch/i386/stand/libsa/pxeboot.h b/sys/arch/i386/stand/libsa/pxeboot.h
new file mode 100644
index 00000000000..e2a6a28f05c
--- /dev/null
+++ b/sys/arch/i386/stand/libsa/pxeboot.h
@@ -0,0 +1,53 @@
+/*	$OpenBSD: pxeboot.h,v 1.1 2004/03/19 13:48:18 tom Exp $ */
+/*	$NetBSD$	*/
+
+/*
+ * Copyright 2001 Wasabi Systems, Inc.
+ * All rights reserved.
+ *
+ * Written by Jason R. Thorpe for Wasabi Systems, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed for the NetBSD Project by
+ *	Wasabi Systems, Inc.
+ * 4. The name of Wasabi Systems, Inc. may not be used to endorse
+ *    or promote products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* Flat address space for [pxe]boot in protected mode */
+#define	VTOPSEG(vaddr)	(((u_int32_t) vaddr) >> 4)
+#define	VTOPOFF(vaddr)	(((u_int32_t) vaddr) & 0xf)
+
+#define SEGOFF2FLAT(seg, off) ((void *)((((u_int32_t)(seg))<<4) + \
+    ((u_int32_t)(off))))
+
+void	pxeprobe(void);
+void	pxeinfo(void);
+
+ssize_t	pxesendudp(struct iodesc *, void *, size_t);
+ssize_t	pxereadudp(struct iodesc *, void *, size_t, time_t);
+
+int	pxe_init(int);
+void	pxe_shutdown(void);