113 lines
3.4 KiB
C
113 lines
3.4 KiB
C
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/* $NetBSD: devopen.c,v 1.1 2002/02/16 03:37:40 thorpej Exp $ */
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/*
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* Copyright 2001 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Jason R. Thorpe for Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <stand.h>
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#include <libi386.h>
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#ifdef _STANDALONE
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#include <lib/libkern/libkern.h>
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#include <bootinfo.h>
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#else
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#include <string.h>
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#endif
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#include "pxeboot.h"
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#ifdef _STANDALONE
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struct btinfo_bootpath bibp;
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#endif
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/*
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* Open the "device" named by the combined file system/file name
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* given as the fname arg. Format is:
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*
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* nfs:netbsd
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* tftp:netbsd
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* netbsd
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*
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* If no file system is specified, we default to the first in the
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* file system table (which ought to be NFS).
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*
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* We always open just one device (the PXE netif).
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*/
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int
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devopen(struct open_file *f, const char *fname, char **file)
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{
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struct devsw *dp;
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char *filename;
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size_t fsnamelen;
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int i;
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bcopy(pxeboot_fstab[0].fst_ops, file_system, sizeof(struct fs_ops));
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filename = strchr(fname, ':');
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if (filename != NULL) {
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fsnamelen = (size_t)((const char *)filename - fname);
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for (i = 0; i < npxeboot_fstab; i++) {
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if (strncmp(fname, pxeboot_fstab[i].fst_name,
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fsnamelen) == 0) {
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bcopy(pxeboot_fstab[i].fst_ops, file_system,
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sizeof(struct fs_ops));
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break;
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}
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}
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if (i == npxeboot_fstab) {
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printf("Invalid file system type specified in %s\n",
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fname);
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return (EINVAL);
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}
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filename++;
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if (filename[0] == '\0') {
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printf("No file specified in %s\n", fname);
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return (EINVAL);
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}
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} else
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filename = (char *)fname;
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*file = filename;
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dp = &devsw[0];
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f->f_dev = dp;
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#ifdef _STANDALONE
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strncpy(bibp.bootpath, filename, sizeof(bibp.bootpath));
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BI_ADD(&bibp, BTINFO_BOOTPATH, sizeof(bibp));
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#endif
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return ((*dp->dv_open)(f, NULL));
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}
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