/* $OpenBSD: devopen.c,v 1.4 2023/01/10 17:10:57 miod Exp $ */ /* $NetBSD: devopen.c,v 1.3 2013/01/16 15:46:20 tsutsui Exp $ */ /* * Copyright (c) 1992 OMRON Corporation. * * This code is derived from software contributed to Berkeley by * OMRON Corporation. * * 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 University of * California, Berkeley and its contributors. * 4. Neither the name of the University 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 REGENTS 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 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. * * @(#)conf.c 8.1 (Berkeley) 6/10/93 */ /* * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * OMRON Corporation. * * 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. Neither the name of the University 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 REGENTS 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 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. * * @(#)conf.c 8.1 (Berkeley) 6/10/93 */ #include <sys/reboot.h> #include <lib/libkern/libkern.h> #include <luna88k/stand/boot/samachdep.h> #include <machine/disklabel.h> #define MAXDEVNAME 16 static int make_device(const char *, int *, int *, int *, char **); int devopen(struct open_file *f, const char *fname, char **file) { int dev, unit, part; int error; struct devsw *dp; int i; if (make_device(fname, &dev, &unit, &part, file) != 0) return ENXIO; #ifdef DEBUG printf("%s: %s(%d,%d):%s\n", __func__, devsw[dev].dv_name, unit, part, *file); #endif dp = &devsw[dev]; error = (*dp->dv_open)(f, unit, part); if (error != 0) { #ifdef DEBUG printf("%s: open %s(%d,%d):%s failed (%s)\n", __func__, devsw[dev].dv_name, unit, part, *file, strerror(error)); #endif return error; } for (i = 0; i < nfsys_disk; i++) file_system[i] = file_system_disk[i]; nfsys = nfsys_disk; #ifdef SUPPORT_ETHERNET if (strcmp(dp->dv_name, "le") == 0) { /* XXX mixing local fs_ops on netboot could be troublesome */ file_system[0] = file_system_nfs[0]; nfsys = 1; } #endif f->f_dev = dp; /* Save boot device information to pass to the kernel */ bootdev = MAKEBOOTDEV(dev, 0, unit / 10, 6 - unit % 10, part); return 0; } int make_device(const char *str, int *devp, int *unitp, int *partp, char **fname) { const char *cp; struct devsw *dp; int major, unit = 0, part = 0; int i; char devname[MAXDEVNAME + 1]; /* * parse path strings */ /* find end of dev type name */ for (cp = str, i = 0; *cp != '\0' && *cp != '(' && i < MAXDEVNAME; i++) devname[i] = *cp++; if (*cp != '(') { return (-1); } devname[i] = '\0'; /* compare dev type name */ for (dp = devsw; dp->dv_name; dp++) if (!strcmp(devname, dp->dv_name)) break; cp++; if (dp->dv_name == NULL) { return (-1); } major = dp - devsw; /* get mixed controller and unit number */ for (; *cp != ',' && *cp != ')'; cp++) { if (*cp == '\0') return -1; if (*cp >= '0' && *cp <= '9') unit = unit * 10 + *cp - '0'; } if (unit < 0 || unit >= 20 || (unit % 10) > 7) { #ifdef DEBUG printf("%s: invalid unit number (%d)\n", __func__, unit); #endif return (-1); } /* get optional partition number */ if (*cp == ',') cp++; for (; /* *cp != ',' && */ *cp != ')'; cp++) { if (*cp == '\0') return -1; if (*cp >= '0' && *cp <= '9') part = part * 10 + *cp - '0'; } if (part < 0 || part >= MAXPARTITIONS) { #ifdef DEBUG printf("%s: invalid partition number (%d)\n", __func__, part); #endif return (-1); } /* check out end of dev spec */ *devp = major; *unitp = unit; *partp = part; cp++; if (*cp == ':') cp++; if (*cp == '\0') *fname = "bsd"; else *fname = (char *)cp; /* XXX */ #ifdef DEBUG printf("%s(%s): major = %d, unit = %d, part = %d, fname = %s\n", __func__, str, major, unit, part, *fname); #endif return 0; }
