[src/trunk]: src/sys/arch/i386/stand/efiboot Added tftp support to x86 efiboot.

[nonaka <nonaka%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ee6e2c50e8a4
branches:  trunk
changeset: 962635:ee6e2c50e8a4
user:      nonaka <nonaka%NetBSD.org@localhost>
date:      Fri Jul 26 11:30:31 2019 +0000

description:
Added tftp support to x86 efiboot.

diffstat:

 sys/arch/i386/stand/efiboot/Makefile.efiboot |    9 +-
 sys/arch/i386/stand/efiboot/dev_net.c        |  257 ++++++++++++++++++++++++++-
 2 files changed, 261 insertions(+), 5 deletions(-)

diffs (299 lines):

diff -r 19bb8e24d564 -r ee6e2c50e8a4 sys/arch/i386/stand/efiboot/Makefile.efiboot
--- a/sys/arch/i386/stand/efiboot/Makefile.efiboot      Fri Jul 26 11:16:19 2019 +0000
+++ b/sys/arch/i386/stand/efiboot/Makefile.efiboot      Fri Jul 26 11:30:31 2019 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile.efiboot,v 1.14 2018/07/25 23:45:32 kamil Exp $
+# $NetBSD: Makefile.efiboot,v 1.15 2019/07/26 11:30:31 nonaka Exp $
 
 S=             ${.CURDIR}/../../../../..
 
@@ -18,7 +18,9 @@
 SOURCES+= efinet.c efipxe.c
 LIBI386SRCS= biosdisk.c bootinfo.c bootinfo_biosgeom.c bootmenu.c
 LIBI386SRCS+= diskbuf.c exec.c menuutils.c parseutils.c pread.c
-SRCS= ${SOURCES} ${EXTRA_SOURCES} ${LIBI386SRCS}
+# use our own nfs implementation
+LIBSASRCS+= nfs.c
+SRCS= ${SOURCES} ${EXTRA_SOURCES} ${LIBI386SRCS} ${LIBSASRCS}
 
 .include <bsd.init.mk>
 
@@ -35,6 +37,7 @@
 
 .PATH: ${.CURDIR} ${.CURDIR}/..
 .PATH: ${.CURDIR}/../../lib
+.PATH: ${.CURDIR}/../../libsa
 
 LDSCRIPT?= ${.CURDIR}/ldscript
 LDFLAGS+= -nostdlib -T${LDSCRIPT} -Bsymbolic -shared -nocombreloc
@@ -60,7 +63,7 @@
 CPPFLAGS+= -DSUPPORT_BOOTP
 CPPFLAGS+= -DSUPPORT_DHCP
 CPPFLAGS+= -DSUPPORT_NFS
-#CPPFLAGS+= -DSUPPORT_TFTP
+CPPFLAGS+= -DSUPPORT_TFTP
 CPPFLAGS+= -DPASS_BIOSGEOM
 CPPFLAGS+= -DBIOSDISK_DEFAULT_SECSIZE=2048     # for bootinfo_biosgeom.c
 CPPFLAGS+= -DLIBSA_ENABLE_LS_OP
diff -r 19bb8e24d564 -r ee6e2c50e8a4 sys/arch/i386/stand/efiboot/dev_net.c
--- a/sys/arch/i386/stand/efiboot/dev_net.c     Fri Jul 26 11:16:19 2019 +0000
+++ b/sys/arch/i386/stand/efiboot/dev_net.c     Fri Jul 26 11:30:31 2019 +0000
@@ -1,3 +1,256 @@
-/*     $NetBSD: dev_net.c,v 1.1 2018/04/11 10:32:09 nonaka Exp $       */
+/*     $NetBSD: dev_net.c,v 1.2 2019/07/26 11:30:31 nonaka 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.
+ *
+ * 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 code.  This interface
+ * does not support any "block" access, and exists only for the
+ * purpose of initializing the network interface, getting boot
+ * parameters, and performing the NFS mount.
+ *
+ * At open time, this does:
+ *
+ * find interface      - netif_open()
+ * RARP for IP address - rarp_getipaddress()
+ * RPC/bootparams      - callrpc(d, RPC_BOOTPARAMS, ...)
+ * RPC/mountd          - nfs_mount(sock, ip, path)
+ */
+
+#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 "stand.h"
+#include "net.h"
+#include "netif.h"
+#include "nfs.h"
+#include "bootparam.h"
+#include "dev_net.h"
+#ifdef SUPPORT_BOOTP
+#include "bootp.h"
+#endif
+
+static int netdev_sock = -1;
+static int netdev_opens;
+
+static 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, ...)
+{
+       va_list ap;
+       char *devname;          /* Device part of file name (or NULL). */
+       int error = 0;
+
+       va_start(ap, f);
+       devname = va_arg(ap, char *);
+       va_end(ap);
+
+#ifdef NETIF_DEBUG
+       if (debug)
+               printf("%s\n", devname);
+#endif
+
+       /* On first open, do netif open, mount, etc. */
+       if (netdev_opens == 0) {
+               /* Find network interface. */
+               if (netdev_sock < 0) {
+                       netdev_sock = netif_open(devname);
+                       if (netdev_sock < 0) {
+                               printf("netif_open() failed\n");
+                               return ENXIO;
+                       }
+#ifdef NETIF_DEBUG
+                       if (debug)
+                               printf("netif_open() succeeded\n");
+#endif
+               }
+               if (rootip.s_addr == 0) {
+                       /* Get root IP address, and path, etc. */
+                       error = net_getparams(netdev_sock);
+                       if (error) {
+                               /* getparams makes its own noise */
+                               netif_close(netdev_sock);
+                               netdev_sock = -1;
+                               return error;
+                       }
+               }
+       }
+       netdev_opens++;
+       f->f_devdata = &netdev_sock;
+       return error;
+}
+
+int
+net_close(struct open_file *f)
+{
 
-#include <lib/libsa/dev_net.c>
+#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("%s: calling netif_close()\n", __func__);
+#endif
+               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;
+}
+
+
+#ifdef SUPPORT_BOOTP
+int try_bootp;
+#endif
+
+static int
+net_getparams(int sock)
+{
+       char buf[MAXHOSTNAMELEN];
+       n_long smask;
+
+#ifdef SUPPORT_BOOTP
+       /*
+        * 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.
+        */
+       if (try_bootp)
+               bootp(sock);
+       if (myip.s_addr != 0)
+               return 0;
+#ifdef NETIF_DEBUG
+       if (debug)
+               printf("BOOTP failed, trying RARP/RPC...\n");
+#endif
+#endif
+
+       /*
+        * Use RARP to get our IP address.  This also sets our
+        * netmask to the "natural" default for our address.
+        */
+       if (rarp_getipaddress(sock)) {
+               printf("RARP failed\n");
+               return EIO;
+       }
+#ifdef NETIF_DEBUG
+       if (debug)
+               printf("client addr: %s\n", inet_ntoa(myip));
+#endif
+
+       /* Get our hostname, server IP address, gateway. */
+       if (bp_whoami(sock)) {
+               printf("bootparam/whoami RPC failed\n");
+               return EIO;
+       }
+#ifdef NETIF_DEBUG
+       if (debug)
+               printf("client name: %s\n", hostname);
+#endif
+
+       /*
+        * Ignore the gateway from whoami (unreliable).
+        * Use the "gateway" parameter instead.
+        */
+       smask = 0;
+       gateip.s_addr = 0;
+       if (bp_getfile(sock, "gateway", &gateip, buf)) {
+               printf("%s: gateway bootparam missing\n", __func__);
+       } else {
+               /* Got it!  Parse the netmask. */
+               smask = inet_addr(buf);
+       }
+       if (smask) {
+               netmask = smask;
+#ifdef NETIF_DEBUG
+               if (debug)
+                       printf("subnet mask: %s\n", intoa(netmask));
+#endif
+       }
+#ifdef NETIF_DEBUG
+       if (debug)
+               if (gateip.s_addr)
+                       printf("net gateway: %s\n", inet_ntoa(gateip));
+#endif
+
+       /* Get the root server and pathname. */
+       if (bp_getfile(sock, "root", &rootip, rootpath)) {
+               printf("bootparam/getfile RPC failed\n");
+               return EIO;
+       }
+
+#ifdef NETIF_DEBUG
+       if (debug) {
+               printf("server addr: %s\n", inet_ntoa(rootip));
+               printf("server path: %s\n", rootpath);
+       }
+#endif
+
+       return 0;
+}