Don't include cdprobe any more
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parent
4ae5403558
commit
7d83ef196d
2 changed files with 1 additions and 85 deletions
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@ -16,8 +16,7 @@ LIBS = -lsys -lsysutil -ltimers
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OBJ = main.o open.o read.o write.o pipe.o dmap.o \
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device.o path.o mount.o link.o super.o inode.o \
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cache.o cache2.o filedes.o stadir.o protect.o time.o \
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lock.o misc.o utility.o select.o timers.o table.o \
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cdprobe.o
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lock.o misc.o utility.o select.o timers.o table.o
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# build local binary
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all build: $(SERVER)
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@ -1,83 +0,0 @@
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/* This file contains some code to guess where we have to load the
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* RAM image device from, if started from CD. (In this case it's hard
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* to tell where this is without diving into BIOS heuristics.)
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*
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* There is some nasty hard-codery in here (e.g. AT minor device numbers,
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* MINIX cd label) that can be improved on.
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*
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* Changes:
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* Jul 14, 2005 Created (Ben Gras)
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*/
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#include "fs.h"
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#include "super.h"
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#include <minix/com.h>
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#include <string.h>
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/*===========================================================================*
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* cdprobe *
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*===========================================================================*/
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PUBLIC int cdprobe(void)
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{
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#define CD_SECTOR 2048
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#define AT_MAJOR 3
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#define AT_MINORS 4
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int i, minors[AT_MINORS] = { 0, 5, 10, 15 }, dev = 0, found = 0;
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char pvd[CD_SECTOR];
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printf("\nLooking for boot CD. This may take a minute.\n"
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"Please ignore any error messages.\n\n");
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for(i = 0; i < AT_MINORS && !found; i++) {
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struct super_block probe_super;
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int r, minor;
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dev = (AT_MAJOR << MAJOR) | minors[i];
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/* Open device readonly. (This fails if the device
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* is also writable, which a CD isn't.)
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*/
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if ((r = dev_open(dev, FS_PROC_NR, RO_BIT)) != OK) {
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continue;
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}
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if ((r = dev_io(DEV_READ, dev, FS_PROC_NR, pvd,
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16*CD_SECTOR, sizeof(pvd), 0)) != sizeof(pvd)) {
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dev_close(dev);
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continue;
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}
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dev_close(dev);
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/* Check PVD ID. */
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if (pvd[0] != 1 || pvd[1] != 'C' || pvd[2] != 'D' ||
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pvd[3] != '0' || pvd[4] != '0' || pvd[5] != '1' || pvd[6] != 1 ||
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strncmp(pvd + 40, "MINIX", 5)) {
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continue;
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}
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/* 3. Both c0dXp1 and p2 should have a superblock. */
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for(minor = minors[i]+2; minor <= minors[i]+3; minor++) {
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dev = (AT_MAJOR << MAJOR) | minor;
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if ((r = dev_open(dev, FS_PROC_NR, R_BIT)) != OK) {
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break;
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}
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probe_super.s_dev = dev;
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r = read_super(&probe_super);
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dev_close(dev);
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if (r != OK) {
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break;
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}
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}
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if (minor > minors[i]+3) {
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/* Success? Then set dev to p1. */
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dev = (AT_MAJOR << MAJOR) | (minors[i]+2);
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found = 1;
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break;
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}
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}
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if (!found) return NO_DEV;
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return dev;
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}
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