/* $OpenBSD: dev_i386.c,v 1.1 2019/05/11 02:33:34 mlarkin Exp $ */ /* * Copyright (c) 1996-1999 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 AUTHOR OR HIS RELATIVES 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 MIND, 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 #include #include #include #include "libsa.h" #include "biosdev.h" #include "disk.h" #ifdef SOFTRAID #include #include #include #include "softraid_amd64.h" #endif extern int debug; /* XXX use slot for 'rd' for 'hd' pseudo-device */ const char bdevs[][4] = { "wd", "", "fd", "", "sd", "st", "cd", "", "", "", "", "", "", "", "", "", "", "hd", "" }; const int nbdevs = nitems(bdevs); const char cdevs[][4] = { "cn", "", "", "", "", "", "", "", "com", "", "", "", "pc" }; const int ncdevs = nitems(cdevs); /* pass dev_t to the open routines */ int devopen(struct open_file *f, const char *fname, char **file) { struct devsw *dp = devsw; register int i, rc = 1; *file = (char *)fname; #ifdef DEBUG if (debug) printf("devopen:"); #endif for (i = 0; i < ndevs && rc != 0; dp++, i++) { #ifdef DEBUG if (debug) printf(" %s: ", dp->dv_name); #endif if ((rc = (*dp->dv_open)(f, file)) == 0) { f->f_dev = dp; if (strcmp("TFTP", dp->dv_name) != 0) { /* * Clear bootmac, to signal that we loaded * this file from a non-network device. */ extern char *bootmac; bootmac = NULL; } return 0; } #ifdef DEBUG else if (debug) printf("%d", rc); #endif } #ifdef DEBUG if (debug) putchar('\n'); #endif if ((f->f_flags & F_NODEV) == 0) f->f_dev = dp; return rc; } void devboot(dev_t bootdev, char *p) { #ifdef SOFTRAID struct sr_boot_volume *bv; struct sr_boot_chunk *bc; struct diskinfo *dip = NULL; #endif int sr_boot_vol = -1; int part_type = FS_UNUSED; if (!bootdev) { *p++ = 't'; *p++ = 'f'; *p++ = 't'; *p++ = 'p'; *p = '\0'; return; } #ifdef SOFTRAID /* * Determine the partition type for the 'a' partition of the * boot device. */ TAILQ_FOREACH(dip, &disklist, list) if (dip->bios_info.bios_number == bootdev && (dip->bios_info.flags & BDI_BADLABEL) == 0) part_type = dip->disklabel.d_partitions[0].p_fstype; /* * See if we booted from a disk that is a member of a bootable * softraid volume. */ SLIST_FOREACH(bv, &sr_volumes, sbv_link) { if (bv->sbv_flags & BIOC_SCBOOTABLE) SLIST_FOREACH(bc, &bv->sbv_chunks, sbc_link) if (bc->sbc_disk == bootdev) sr_boot_vol = bv->sbv_unit; if (sr_boot_vol != -1) break; } #endif if (sr_boot_vol != -1 && part_type != FS_BSDFFS) { *p++ = 's'; *p++ = 'r'; *p++ = '0' + sr_boot_vol; } else if (bootdev & 0x100) { *p++ = 'c'; *p++ = 'd'; *p++ = '0'; } else { if (bootdev & 0x80) *p++ = 'h'; else *p++ = 'f'; *p++ = 'd'; *p++ = '0' + (bootdev & 0x7f); } *p++ = 'a'; *p = '\0'; } char ttyname_buf[8]; char * ttyname(int fd) { snprintf(ttyname_buf, sizeof ttyname_buf, "%s%d", cdevs[major(cn_tab->cn_dev)], minor(cn_tab->cn_dev)); return ttyname_buf; } dev_t ttydev(char *name) { int i, unit = -1; char *no = name + strlen(name) - 1; while (no >= name && *no >= '0' && *no <= '9') unit = (unit < 0 ? 0 : (unit * 10)) + *no-- - '0'; if (no < name || unit < 0) return NODEV; for (i = 0; i < ncdevs; i++) if (strncmp(name, cdevs[i], no - name + 1) == 0) return makedev(i, unit); return NODEV; } int cnspeed(dev_t dev, int sp) { if (major(dev) == 8) /* comN */ return comspeed(dev, sp); /* pc0 and anything else */ return 9600; }