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-rw-r--r--linux/dev/glue/misc.c346
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diff --git a/linux/dev/glue/misc.c b/linux/dev/glue/misc.c
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+/*
+ * Miscellaneous routines and data for Linux emulation.
+ *
+ * Copyright (C) 1996 The University of Utah and the Computer Systems
+ * Laboratory at the University of Utah (CSL)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Author: Shantanu Goel, University of Utah CSL
+ */
+
+/*
+ * linux/fs/proc/scsi.c
+ * (c) 1995 Michael Neuffer neuffer@goofy.zdv.uni-mainz.de
+ *
+ * The original version was derived from linux/fs/proc/net.c,
+ * which is Copyright (C) 1991, 1992 Linus Torvalds.
+ * Much has been rewritten, but some of the code still remains.
+ *
+ * /proc/scsi directory handling functions
+ *
+ * last change: 95/07/04
+ *
+ * Initial version: March '95
+ * 95/05/15 Added subdirectories for each driver and show every
+ * registered HBA as a single file.
+ * 95/05/30 Added rudimentary write support for parameter passing
+ * 95/07/04 Fixed bugs in directory handling
+ * 95/09/13 Update to support the new proc-dir tree
+ *
+ * TODO: Improve support to write to the driver files
+ * Add some more comments
+ */
+
+/*
+ * linux/fs/buffer.c
+ *
+ * Copyright (C) 1991, 1992 Linus Torvalds
+ */
+
+#include <sys/types.h>
+#include <mach/vm_param.h>
+#include <kern/thread.h>
+#include <vm/vm_map.h>
+#include <vm/vm_page.h>
+#include <device/device_types.h>
+
+#define MACH_INCLUDE
+#include <linux/types.h>
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/mm.h>
+#include <linux/fs.h>
+#include <linux/blk.h>
+#include <linux/proc_fs.h>
+#include <linux/kernel_stat.h>
+
+extern boolean_t vm_map_lookup_entry (register vm_map_t, register vm_offset_t,
+ vm_map_entry_t *);
+extern int printf (const char *, ...);
+
+int (*dispatch_scsi_info_ptr) (int ino, char *buffer, char **start,
+ off_t offset, int length, int inout) = 0;
+
+struct kernel_stat kstat;
+
+int
+linux_to_mach_error (int err)
+{
+ switch (err)
+ {
+ case 0:
+ return D_SUCCESS;
+
+ case -LINUX_EPERM:
+ return D_INVALID_OPERATION;
+
+ case -LINUX_EIO:
+ return D_IO_ERROR;
+
+ case -LINUX_ENXIO:
+ return D_NO_SUCH_DEVICE;
+
+ case -LINUX_EACCES:
+ return D_INVALID_OPERATION;
+
+ case -LINUX_EFAULT:
+ return D_INVALID_SIZE;
+
+ case -LINUX_EBUSY:
+ return D_ALREADY_OPEN;
+
+ case -LINUX_EINVAL:
+ return D_INVALID_SIZE;
+
+ case -LINUX_EROFS:
+ return D_READ_ONLY;
+
+ case -LINUX_EWOULDBLOCK:
+ return D_WOULD_BLOCK;
+
+ case -LINUX_ENOMEM:
+ return D_NO_MEMORY;
+
+ default:
+ printf ("linux_to_mach_error: unknown code %d\n", err);
+ return D_IO_ERROR;
+ }
+}
+
+int
+issig ()
+{
+ return current_thread ()->wait_result != THREAD_AWAKENED;
+}
+
+int
+block_fsync (struct inode *inode, struct file *filp)
+{
+ return 0;
+}
+
+int
+verify_area (int rw, const void *p, unsigned long size)
+{
+ vm_prot_t prot = (rw == VERIFY_WRITE) ? VM_PROT_WRITE : VM_PROT_READ;
+ vm_offset_t addr = trunc_page ((vm_offset_t) p);
+ vm_size_t len = round_page ((vm_size_t) size);
+ vm_map_entry_t entry;
+
+ vm_map_lock_read (current_map ());
+
+ while (1)
+ {
+ if (!vm_map_lookup_entry (current_map (), addr, &entry)
+ || (entry->protection & prot) != prot)
+ {
+ vm_map_unlock_read (current_map ());
+ return -LINUX_EFAULT;
+ }
+ if (entry->vme_end - entry->vme_start >= len)
+ break;
+ len -= entry->vme_end - entry->vme_start;
+ addr += entry->vme_end - entry->vme_start;
+ }
+
+ vm_map_unlock_read (current_map ());
+ return 0;
+}
+
+/*
+ * Print device name (in decimal, hexadecimal or symbolic) -
+ * at present hexadecimal only.
+ * Note: returns pointer to static data!
+ */
+char *
+kdevname (kdev_t dev)
+{
+ static char buffer[32];
+ linux_sprintf (buffer, "%02x:%02x", MAJOR (dev), MINOR (dev));
+ return buffer;
+}
+
+/* RO fail safe mechanism */
+
+static long ro_bits[MAX_BLKDEV][8];
+
+int
+is_read_only (kdev_t dev)
+{
+ int minor, major;
+
+ major = MAJOR (dev);
+ minor = MINOR (dev);
+ if (major < 0 || major >= MAX_BLKDEV)
+ return 0;
+ return ro_bits[major][minor >> 5] & (1 << (minor & 31));
+}
+
+void
+set_device_ro (kdev_t dev, int flag)
+{
+ int minor, major;
+
+ major = MAJOR (dev);
+ minor = MINOR (dev);
+ if (major < 0 || major >= MAX_BLKDEV)
+ return;
+ if (flag)
+ ro_bits[major][minor >> 5] |= 1 << (minor & 31);
+ else
+ ro_bits[major][minor >> 5] &= ~(1 << (minor & 31));
+}
+
+/*
+ * linux/lib/string.c
+ *
+ * Copyright (C) 1991, 1992 Linus Torvalds
+ */
+
+/*
+ * stupid library routines.. The optimized versions should generally be found
+ * as inline code in <asm-xx/string.h>
+ *
+ * These are buggy as well..
+ */
+
+#include <linux/types.h>
+#include <linux/string.h>
+
+char *___strtok = NULL;
+
+#ifndef __HAVE_ARCH_STRSPN
+size_t
+strspn (const char *s, const char *accept)
+{
+ const char *p;
+ const char *a;
+ size_t count = 0;
+
+ for (p = s; *p != '\0'; ++p)
+ {
+ for (a = accept; *a != '\0'; ++a)
+ {
+ if (*p == *a)
+ break;
+ }
+ if (*a == '\0')
+ return count;
+ ++count;
+ }
+
+ return count;
+}
+#endif
+
+#ifndef __HAVE_ARCH_STRPBRK
+char *
+strpbrk (const char *cs, const char *ct)
+{
+ const char *sc1, *sc2;
+
+ for (sc1 = cs; *sc1 != '\0'; ++sc1)
+ {
+ for (sc2 = ct; *sc2 != '\0'; ++sc2)
+ {
+ if (*sc1 == *sc2)
+ return (char *) sc1;
+ }
+ }
+ return NULL;
+}
+#endif
+
+#ifndef __HAVE_ARCH_STRTOK
+char *
+strtok (char *s, const char *ct)
+{
+ char *sbegin, *send;
+
+ sbegin = s ? s : ___strtok;
+ if (!sbegin)
+ {
+ return NULL;
+ }
+ sbegin += strspn (sbegin, ct);
+ if (*sbegin == '\0')
+ {
+ ___strtok = NULL;
+ return (NULL);
+ }
+ send = strpbrk (sbegin, ct);
+ if (send && *send != '\0')
+ *send++ = '\0';
+ ___strtok = send;
+ return (sbegin);
+}
+#endif
+
+
+#ifndef __HAVE_ARCH_STRSTR
+char *
+strstr (const char *s1, const char *s2)
+{
+ int l1, l2;
+
+ l2 = strlen (s2);
+ if (! l2)
+ return (char *) s1;
+ l1 = strlen (s1);
+ while (l1 >= l2)
+ {
+ l1--;
+ if (! memcmp (s1,s2,l2))
+ return (char *) s1;
+ s1++;
+ }
+ return NULL;
+}
+#endif
+
+struct proc_dir_entry proc_scsi;
+struct inode_operations proc_scsi_inode_operations;
+struct proc_dir_entry proc_net;
+struct inode_operations proc_net_inode_operations;
+
+int
+proc_register (struct proc_dir_entry *xxx1, struct proc_dir_entry *xxx2)
+{
+ return 0;
+}
+
+int
+proc_unregister (struct proc_dir_entry *xxx1, int xxx2)
+{
+ return 0;
+}
+
+void
+add_blkdev_randomness (int major)
+{
+}
+
+void
+do_gettimeofday (struct timeval *tv)
+{
+ host_get_time (1, tv);
+}
+
+int
+dev_get_info (char *buffer, char **start, off_t offset, int length, int dummy)
+{
+ return 0;
+}
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