patch-2.2.15 linux/arch/s390/boot/silo.c

• Lines: 409
• Date: Thu Jan 1 01:00:00 1970
• Orig file: v2.2.14/arch/s390/boot/silo.c
• Orig date: Tue Jan 4 21:18:40 2000

diff -u --new-file --recursive --exclude-from ../../exclude v2.2.14/arch/s390/boot/silo.c linux/arch/s390/boot/silo.c
@@ -1,408 +0,0 @@
-/*
- *  arch/s390/boot/silo.c
- *
- *  S390 version
- *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- *    Author(s): Holger Smolinski <linux390@de.ibm.com>
- */
-
-#include <stddef.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <limits.h>
-#include <dirent.h>
-#include <linux/fs.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <asm/ioctl.h>
-
-/* from dasd.h */
-#define DASD_PARTN_BITS 2
-#define BIODASDRWTB _IOWR('D',5,int)
-/* end */
-
-#define PRINT_LEVEL(x,y...) if ( silo_options.verbosity >= x ) printf(y)
-#define ERROR_LEVEL(x,y...) if ( silo_options.verbosity >= x ) fprintf(stderr,y)
-#define TOGGLE(x) ((x)=((x)?(0):(1)))
-#define GETARG(x) {int len=strlen(optarg);x=malloc(len);strncpy(x,optarg,len);PRINT_LEVEL(1,"%s set to %s\n",#x,optarg);}
-
-#define ITRY(x) if ( (x) == -1 ) { ERROR_LEVEL(0,"%s (line:%d) '%s' returned %d='%s'\n", __FILE__,__LINE__,#x,errno,strerror(errno)); usage(); exit(1); }
-#define NTRY(x) if ( (x) == 0 ) { ERROR_LEVEL(0,"%s (line:%d) '%s' returned %d='%s'\n", __FILE__,__LINE__,#x,errno,strerror(errno)); usage(); exit(1); }
-
-#define MAX_CLUSTERS 256
-#define PARTN_MASK ((1 << DASD_PARTN_BITS) - 1)
-
-struct silo_options
-  {
-    short int verbosity;
-    struct
-      {
-	unsigned char testonly;
-      }
-    flags;
-    char *image;
-    char *ipldevice;
-    char *parmfile;
-    char *ramdisk;
-    char *bootsect;
-  }
-silo_options =
-{
-  1,				/* verbosity */
-  {
-    0,				/* testonly */
-  }
-  ,
-    "./image",			/* image */
-    NULL,			/* ipldevice */
-    NULL,			/* parmfile */
-    NULL,			/* initrd */
-    "ipleckd.boot",		/* bootsector */
-};
-
-struct blockdesc
-  {
-    unsigned long off;
-    unsigned short ct;
-    unsigned long addr;
-  };
-
-struct blocklist
-  {
-    struct blockdesc blk[MAX_CLUSTERS];
-    unsigned short ix;
-  };
-
-void
-usage (void)
-{
-  printf ("Usage:\n");
-  printf ("silo -d ipldevice [additional options]\n");
-  printf ("-d /dev/node : set ipldevice to /dev/node\n");
-  printf ("-f image : set image to image\n");
-  printf ("-p parmfile : set parameter file to parmfile\n");
-  printf ("-b bootsect : set bootsector to bootsect\n");
-  printf ("Additional options\n");
-  printf ("-v: increase verbosity level\n");
-  printf ("-v#: set verbosity level to #\n");
-  printf ("-t: toggle testonly flag\n");
-  printf ("-h: print this message\n");
-  printf ("-?: print this message\n");
-}
-
-int
-parse_options (struct silo_options *o, int argc, char *argv[])
-{
-  int rc = 0;
-  int oc;
-  if (argc == 1)
-    {
-      usage ();
-      exit (0);
-    }
-  while ((oc = getopt (argc, argv, "f:d:p:r:b:B:h?v::t")) != -1)
-    {
-      switch (oc)
-	{
-	case 't':
-	  TOGGLE (o->flags.testonly);
-	  PRINT_LEVEL (1, "Testonly flag is now %sactive\n", o->flags.testonly ? "" : "in");
-	  break;
-	case 'v':
-	  {
-	    unsigned short v;
-	    if (optarg && sscanf (optarg, "%hu", &v))
-	      o->verbosity = v;
-	    else
-	      o->verbosity++;
-	    PRINT_LEVEL (1, "Verbosity value is now %hu\n", o->verbosity);
-	    break;
-	  }
-	case 'h':
-	case '?':
-	  usage ();
-	  break;
-	case 'd':
-	  GETARG (o->ipldevice);
-	  break;
-	case 'f':
-	  GETARG (o->image);
-	  break;
-	case 'p':
-	  GETARG (o->parmfile);
-	  break;
-	case 'r':
-	  GETARG (o->ramdisk);
-	  break;
-	case 'b':
-	  GETARG (o->bootsect);
-	  break;
-	default:
-	  rc = EINVAL;
-	  break;
-	}
-    }
-  return rc;
-}
-
-int
-verify_device (char *name)
-{
-  int rc = 0;
-  struct stat dst;
-  struct stat st;
-  ITRY (stat (name, &dst));
-  if (S_ISBLK (dst.st_mode))
-    {
-      if (!(MINOR (dst.st_rdev) & PARTN_MASK))
-	{
-	  rc = dst.st_rdev;
-	}
-      else
-	/* invalid MINOR & PARTN_MASK */
-	{
-	  ERROR_LEVEL (1, "Cannot boot from partition %d %d %d",
-		       (int) PARTN_MASK, (int) MINOR (dst.st_rdev), (int) (PARTN_MASK & MINOR (dst.st_rdev)));
-	  rc = -1;
-	  errno = EINVAL;
-	}
-    }
-  else
-    /* error S_ISBLK */
-    {
-      ERROR_LEVEL (1, "%s is no block device\n", name);
-      rc = -1;
-      errno = EINVAL;
-    }
-  return rc;
-}
-
-int
-verify_file (char *name, int dev)
-{
-  int rc = 0;
-  struct stat dst;
-  struct stat st;
-  int bs = 1024;
-  int l;
-  ITRY (stat (name, &dst));
-  if (S_ISREG (dst.st_mode))
-    {
-      if ((unsigned) MAJOR (dev) == (unsigned) MAJOR (dst.st_dev) && (unsigned) MINOR (dev) == (unsigned) (MINOR (dst.st_dev) & ~PARTN_MASK))
-	{
-	  /* whatever to do if all is ok... */
-	}
-      else
-	/* devicenumber doesn't match */
-	{
-	  ERROR_LEVEL (1, "%s is not on device (%d/%d) but on (%d/%d)\n", name, (unsigned) MAJOR (dev), (unsigned) MINOR (dev), (unsigned) MAJOR (dst.st_dev), (unsigned) (MINOR (dst.st_dev) & ~PARTN_MASK));
-	  rc = -1;
-	  errno = EINVAL;
-	}
-    }
-  else
-    /* error S_ISREG */
-    {
-      ERROR_LEVEL (1, "%s is neither regular file nor linkto one\n", name);
-      rc = -1;
-      errno = EINVAL;
-    }
-  return rc;
-}
-
-int
-verify_options (struct silo_options *o)
-{
-  int rc = 0;
-  int dev = 0;
-  int crc = 0;
-  if (!o->ipldevice || !o->image || !o->bootsect)
-    {
-      usage ();
-      exit (1);
-    }
-  PRINT_LEVEL (1, "IPL device is: '%s'", o->ipldevice);
-
-  ITRY (dev = verify_device (o->ipldevice));
-  PRINT_LEVEL (2, "...ok...(%d/%d)", (unsigned short) MAJOR (dev), (unsigned short) MINOR (dev));
-  PRINT_LEVEL (1, "\n");
-
-  PRINT_LEVEL (0, "bootsector is: '%s'", o->bootsect);
-  ITRY (verify_file (o->bootsect, dev));
-  PRINT_LEVEL (1, "...ok...");
-  PRINT_LEVEL (0, "\n");
-
-  PRINT_LEVEL (0, "Kernel image is: '%s'", o->image);
-  ITRY (verify_file (o->image, dev));
-  PRINT_LEVEL (1, "...ok...");
-  PRINT_LEVEL (0, "\n");
-
-  if (o->parmfile)
-    {
-      PRINT_LEVEL (0, "parameterfile is: '%s'", o->parmfile);
-      ITRY (verify_file (o->parmfile, dev));
-      PRINT_LEVEL (1, "...ok...");
-      PRINT_LEVEL (0, "\n");
-    }
-
-  if (o->ramdisk)
-    {
-      PRINT_LEVEL (0, "initialramdisk is: '%s'", o->ramdisk);
-      ITRY (verify_file (o->ramdisk, dev));
-      PRINT_LEVEL (1, "...ok...");
-      PRINT_LEVEL (0, "\n");
-    }
-
-  return crc;
-}
-
-
-int
-add_file_to_blocklist (char *name, struct blocklist *lst, long addr)
-{
-  int fd;
-  int devfd;
-  struct stat fst;
-  int i;
-  int blk;
-  int bs;
-  int blocks;
-
-  int rc = 0;
-
-  ITRY (fd = open (name, O_RDONLY));
-  ITRY (fstat (fd, &fst));
-  ITRY (mknod ("/tmp/silodev", S_IFBLK | S_IRUSR | S_IWUSR, fst.st_dev));
-  ITRY (devfd = open ("/tmp/silodev", O_RDONLY));
-  ITRY (ioctl (fd, FIGETBSZ, &bs));
-  blocks = (fst.st_size + bs - 1) / bs;
-  for (i = 0; i < blocks; i++)
-    {
-      blk = i;
-      ITRY (ioctl (fd, FIBMAP, &blk));
-      if (blk)
-	{
-	  int oldblk = blk;
-	  ITRY (ioctl (devfd, BIODASDRWTB, &blk));
-	  if (blk <= 0)
-	    {
-	      ERROR_LEVEL (0, "BIODASDRWTB on blk %d returned %d\n", oldblk, blk);
-	      break;
-	    }
-	}
-      else
-	{
-	  PRINT_LEVEL (1, "Filled hole on blk %d\n", i);
-	}
-      if (lst->ix == 0 || i == 0  || 
-	  lst->blk[lst->ix - 1].ct >= 128 ||
-	  (lst->blk[lst->ix - 1].off + lst->blk[lst->ix - 1].ct != blk &&
-	   !(lst->blk[lst->ix - 1].off == 0 && blk == 0)))
-	{
-	  if (lst->ix >= MAX_CLUSTERS)
-	    {
-	      rc = 1;
-	      errno = ENOMEM;
-	      break;
-	    }
-	  lst->blk[lst->ix].off = blk;
-	  lst->blk[lst->ix].ct = 1;
-	  lst->blk[lst->ix].addr = addr + i * bs;
-	  lst->ix++;
-	}
-      else
-	{
-	  lst->blk[lst->ix - 1].ct++;
-	}
-    }
-  ITRY(unlink("/tmp/silodev"));
-  return rc;
-}
-
-int
-write_bootsect (char *ipldevice, char *bootsect, struct blocklist *blklst)
-{
-  int i;
-  int s_fd, d_fd, b_fd, bd_fd;
-  struct stat s_st, d_st, b_st;
-  int rc=0;
-  int bs, boots;
-  char buffer[4096];
-  ITRY (d_fd = open (ipldevice, O_RDWR | O_SYNC));
-  ITRY (fstat (d_fd, &d_st));
-  ITRY (s_fd = open ("boot.map", O_RDWR | O_TRUNC | O_CREAT | O_SYNC));
-  ITRY (verify_file (bootsect, d_st.st_rdev));
-  for (i = 0; i < blklst->ix; i++)
-    {
-      int offset = blklst->blk[i].off;
-      int addrct = blklst->blk[i].addr | (blklst->blk[i].ct & 0xff);
-      PRINT_LEVEL (1, "ix %i: offset: %06x count: %02x address: 0x%08x\n", i, offset, blklst->blk[i].ct & 0xff, blklst->blk[i].addr);
-      NTRY (write (s_fd, &offset, sizeof (int)));
-      NTRY (write (s_fd, &addrct, sizeof (int)));
-    }
-  ITRY (ioctl (s_fd,FIGETBSZ, &bs));
-  ITRY (stat ("boot.map", &s_st));
-  if (s_st.st_size > bs )
-    {
-      ERROR_LEVEL (0,"boot.map is larger than one block\n");
-      rc = -1;
-      errno = EINVAL;
-    }
-  boots=0;
-  ITRY (mknod ("/tmp/silodev", S_IFBLK | S_IRUSR | S_IWUSR, s_st.st_dev));
-  ITRY (bd_fd = open ("/tmp/silodev", O_RDONLY));
-  ITRY ( ioctl(s_fd,FIBMAP,&boots));
-  ITRY (ioctl (bd_fd, BIODASDRWTB, &boots));
-  PRINT_LEVEL (1, "Bootmap is in block no: 0x%08x\n", boots);
-  close (bd_fd);
-  close(s_fd);
-  ITRY (unlink("/tmp/silodev"));
-  /* Now patch the bootsector */
-  ITRY (b_fd = open (bootsect, O_RDONLY));
-  NTRY (read (b_fd, buffer, 4096));
-  memset (buffer + 0xe0, 0, 8);
-  *(int *) (buffer + 0xe0) = boots;
-  NTRY (write (d_fd, buffer, 4096));
-  NTRY (write (d_fd, buffer, 4096));
-  close (b_fd);
-  close (d_fd);
-  return rc;
-}
-
-int
-do_silo (struct silo_options *o)
-{
-  int rc = 0;
-
-  int device_fd;
-  int image_fd;
-  struct blocklist blklist;
-  memset (&blklist, 0, sizeof (struct blocklist));
-  ITRY (add_file_to_blocklist (o->image, &blklist, 0x00000000));
-  if (o->parmfile)
-    {
-      ITRY (add_file_to_blocklist (o->parmfile, &blklist, 0x00008000));
-    }
-  if (o->ramdisk)
-    {
-      ITRY (add_file_to_blocklist (o->ramdisk, &blklist, 0x00800000));
-    }
-  ITRY (write_bootsect (o->ipldevice, o->bootsect, &blklist));
-
-  return rc;
-}
-
-int
-main (int argct, char *argv[])
-{
-  int rc = 0;
-  ITRY (parse_options (&silo_options, argct, argv));
-  ITRY (verify_options (&silo_options));
-  ITRY (do_silo (&silo_options));
-  return rc;
-}