146 lines
3.8 KiB
C
146 lines
3.8 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 1999,2000,2001,2002,2003,2004,2006,2007,2008,2009,2010,2011,2012,2013 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <config-util.h>
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#include <grub/disk.h>
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#include <grub/partition.h>
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#include <grub/msdos_partition.h>
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#include <grub/types.h>
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#include <grub/err.h>
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#include <grub/emu/misc.h>
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#include <grub/emu/hostdisk.h>
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#include <grub/emu/getroot.h>
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#include <grub/misc.h>
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#include <grub/i18n.h>
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#include <grub/list.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <assert.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <limits.h>
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#include <hurd.h>
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#include <hurd/lookup.h>
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#include <hurd/fs.h>
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#include <sys/mman.h>
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int
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grub_util_hurd_get_disk_info (const char *dev, grub_uint32_t *secsize, grub_disk_addr_t *offset,
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grub_disk_addr_t *size, char **parent)
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{
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file_t file;
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mach_port_t *ports;
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int *ints;
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loff_t *offsets;
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char *data;
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error_t err;
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mach_msg_type_number_t num_ports = 0, num_ints = 0, num_offsets = 0, data_len = 0;
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file = file_name_lookup (dev, 0, 0);
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if (file == MACH_PORT_NULL)
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return 0;
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err = file_get_storage_info (file,
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&ports, &num_ports,
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&ints, &num_ints,
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&offsets, &num_offsets,
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&data, &data_len);
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if (num_ints < 1)
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grub_util_error (_("Storage information for `%s' does not include type"), dev);
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if (ints[0] != STORAGE_DEVICE)
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grub_util_error (_("`%s' is not a local disk"), dev);
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if (num_offsets != 2)
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grub_util_error (_("Storage information for `%s' indicates neither a plain partition nor a plain disk"), dev);
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if (parent)
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{
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*parent = NULL;
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if (num_ints >= 5)
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{
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size_t len = ints[4];
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if (len > data_len)
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len = data_len;
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*parent = xmalloc (len+1);
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memcpy (*parent, data, len);
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(*parent)[len] = '\0';
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}
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}
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if (offset)
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*offset = offsets[0];
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if (size)
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*size = offsets[1];
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if (secsize)
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*secsize = ints[2];
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if (ports && num_ports > 0)
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{
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mach_msg_type_number_t i;
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for (i = 0; i < num_ports; i++)
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{
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mach_port_t port = ports[i];
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if (port != MACH_PORT_NULL)
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mach_port_deallocate (mach_task_self(), port);
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}
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munmap ((caddr_t) ports, num_ports * sizeof (*ports));
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}
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if (ints && num_ints > 0)
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munmap ((caddr_t) ints, num_ints * sizeof (*ints));
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if (offsets && num_offsets > 0)
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munmap ((caddr_t) offsets, num_offsets * sizeof (*offsets));
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if (data && data_len > 0)
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munmap (data, data_len);
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mach_port_deallocate (mach_task_self (), file);
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return 1;
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}
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grub_int64_t
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grub_util_get_fd_size_os (grub_util_fd_t fd, const char *name, unsigned *log_secsize)
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{
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grub_uint32_t sector_size;
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grub_disk_addr_t size;
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unsigned log_sector_size;
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if (!grub_util_hurd_get_disk_info (name, §or_size, NULL, &size, NULL))
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return -1;
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if (sector_size & (sector_size - 1) || !sector_size)
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return -1;
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for (log_sector_size = 0;
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(1 << log_sector_size) < sector_size;
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log_sector_size++);
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if (log_secsize)
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*log_secsize = log_sector_size;
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return size << log_sector_size;
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}
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void
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grub_hostdisk_flush_initial_buffer (const char *os_dev __attribute__ ((unused)))
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{
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}
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