Baptiste Daroussin 6a695123b0 Netboot: allow both tftpfs and nfs in both pxeboot and loader.efi
Add a new 'netproto' variable which can be set for now to
NET_TFTP or NET_NFS (default to NET_NONE)

From the dhcp options if one sets the root-path option to:
"ip:path", the loader will consider it is booting over NFS
(meaning same behaviour as the default current behaviour)

if the dhcp option "tftp server address" is set (option 150)
the loader will consider it is booting over tftpfs, it will then
consider the root-path options with 2 possible case
1. "path" then the IP of the tftp server will be the one passed by
the option 150, and the files will be retrieved under "path" on the tftp
server
2. "ip:path" then the IP of the tftp server will be the one passed in
the option "overwritting the IP from the option 150.

We could not "abuse" the rootpath option in the form or tftp://ip:path because
this is already used for other purpose by iPXE preventing any chainload from
iPXE to the FreeBSD loader.

Given at each open(), the loader loops over all available filesystems and keep
the "best" error, we needed to prevent tftpfs to fallback on nfs and vice versa.
the tftpfs and nfs implementation in libstand now return EINVAL early if
'netproto' for that purpose.

Reviewed by:	tsoome
Relnotes:	yes
Sponsored by:	Gandi.net
Differential Revision:	https://reviews.freebsd.org/D7628
2016-08-31 13:16:40 +00:00

160 lines
4.1 KiB
C

/*-
* Copyright (c) 1998 Michael Smith <msmith@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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <stand.h>
#include <bootstrap.h>
#include "libi386/libi386.h"
#if defined(LOADER_ZFS_SUPPORT)
#include "../zfs/libzfs.h"
#endif
/*
* We could use linker sets for some or all of these, but
* then we would have to control what ended up linked into
* the bootstrap. So it's easier to conditionalise things
* here.
*
* XXX rename these arrays to be consistent and less namespace-hostile
*
* XXX as libi386 and biosboot merge, some of these can become linker sets.
*/
#if defined(LOADER_FIREWIRE_SUPPORT)
extern struct devsw fwohci;
#endif
/* Exported for libstand */
struct devsw *devsw[] = {
&bioscd,
&biosdisk,
#if defined(LOADER_NFS_SUPPORT) || defined(LOADER_TFTP_SUPPORT)
&pxedisk,
#endif
#if defined(LOADER_FIREWIRE_SUPPORT)
&fwohci,
#endif
#if defined(LOADER_ZFS_SUPPORT)
&zfs_dev,
#endif
NULL
};
struct fs_ops *file_system[] = {
#if defined(LOADER_ZFS_SUPPORT)
&zfs_fsops,
#endif
&ufs_fsops,
&ext2fs_fsops,
&dosfs_fsops,
&cd9660_fsops,
#if defined(LOADER_NANDFS_SUPPORT)
&nandfs_fsops,
#endif
#ifdef LOADER_NFS_SUPPORT
&nfs_fsops,
#endif
#ifdef LOADER_TFTP_SUPPORT
&tftp_fsops,
#endif
#ifdef LOADER_GZIP_SUPPORT
&gzipfs_fsops,
#endif
#ifdef LOADER_BZIP2_SUPPORT
&bzipfs_fsops,
#endif
#ifdef LOADER_SPLIT_SUPPORT
&splitfs_fsops,
#endif
NULL
};
/* Exported for i386 only */
/*
* Sort formats so that those that can detect based on arguments
* rather than reading the file go first.
*/
extern struct file_format i386_elf;
extern struct file_format i386_elf_obj;
extern struct file_format amd64_elf;
extern struct file_format amd64_elf_obj;
extern struct file_format multiboot;
extern struct file_format multiboot_obj;
struct file_format *file_formats[] = {
&multiboot,
&multiboot_obj,
#ifdef LOADER_PREFER_AMD64
&amd64_elf,
&amd64_elf_obj,
#endif
&i386_elf,
&i386_elf_obj,
#ifndef LOADER_PREFER_AMD64
&amd64_elf,
&amd64_elf_obj,
#endif
NULL
};
/*
* Consoles
*
* We don't prototype these in libi386.h because they require
* data structures from bootstrap.h as well.
*/
extern struct console vidconsole;
extern struct console comconsole;
#if defined(LOADER_FIREWIRE_SUPPORT)
extern struct console dconsole;
#endif
extern struct console nullconsole;
extern struct console spinconsole;
struct console *consoles[] = {
&vidconsole,
&comconsole,
#if defined(LOADER_FIREWIRE_SUPPORT)
&dconsole,
#endif
&nullconsole,
&spinconsole,
NULL
};
extern struct pnphandler isapnphandler;
extern struct pnphandler biospnphandler;
extern struct pnphandler biospcihandler;
struct pnphandler *pnphandlers[] = {
&biospnphandler, /* should go first, as it may set isapnp_readport */
&isapnphandler,
&biospcihandler,
NULL
};