diff options
Diffstat (limited to 'grub-core/osdep/hurd/hostdisk.c')
| -rw-r--r-- | grub-core/osdep/hurd/hostdisk.c | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/grub-core/osdep/hurd/hostdisk.c b/grub-core/osdep/hurd/hostdisk.c new file mode 100644 index 0000000..c47b5a5 --- /dev/null +++ b/grub-core/osdep/hurd/hostdisk.c @@ -0,0 +1,146 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 1999,2000,2001,2002,2003,2004,2006,2007,2008,2009,2010,2011,2012,2013 Free Software Foundation, Inc. + * + * GRUB 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 3 of the License, or + * (at your option) any later version. + * + * GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <config-util.h> + +#include <grub/disk.h> +#include <grub/partition.h> +#include <grub/msdos_partition.h> +#include <grub/types.h> +#include <grub/err.h> +#include <grub/emu/misc.h> +#include <grub/emu/hostdisk.h> +#include <grub/emu/getroot.h> +#include <grub/misc.h> +#include <grub/i18n.h> +#include <grub/list.h> + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <ctype.h> +#include <assert.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <errno.h> +#include <limits.h> + +#include <hurd.h> +#include <hurd/lookup.h> +#include <hurd/fs.h> +#include <sys/mman.h> + +int +grub_util_hurd_get_disk_info (const char *dev, grub_uint32_t *secsize, grub_disk_addr_t *offset, + grub_disk_addr_t *size, char **parent) +{ + file_t file; + mach_port_t *ports; + int *ints; + loff_t *offsets; + char *data; + error_t err; + mach_msg_type_number_t num_ports = 0, num_ints = 0, num_offsets = 0, data_len = 0; + + file = file_name_lookup (dev, 0, 0); + if (file == MACH_PORT_NULL) + return 0; + + err = file_get_storage_info (file, + &ports, &num_ports, + &ints, &num_ints, + &offsets, &num_offsets, + &data, &data_len); + + if (num_ints < 1) + grub_util_error (_("Storage information for `%s' does not include type"), dev); + if (ints[0] != STORAGE_DEVICE) + grub_util_error (_("`%s' is not a local disk"), dev); + + if (num_offsets != 2) + grub_util_error (_("Storage information for `%s' indicates neither a plain partition nor a plain disk"), dev); + if (parent) + { + *parent = NULL; + if (num_ints >= 5) + { + size_t len = ints[4]; + if (len > data_len) + len = data_len; + *parent = xmalloc (len+1); + memcpy (*parent, data, len); + (*parent)[len] = '\0'; + } + } + if (offset) + *offset = offsets[0]; + if (size) + *size = offsets[1]; + if (secsize) + *secsize = ints[2]; + if (ports && num_ports > 0) + { + mach_msg_type_number_t i; + for (i = 0; i < num_ports; i++) + { + mach_port_t port = ports[i]; + if (port != MACH_PORT_NULL) + mach_port_deallocate (mach_task_self(), port); + } + munmap ((caddr_t) ports, num_ports * sizeof (*ports)); + } + + if (ints && num_ints > 0) + munmap ((caddr_t) ints, num_ints * sizeof (*ints)); + if (offsets && num_offsets > 0) + munmap ((caddr_t) offsets, num_offsets * sizeof (*offsets)); + if (data && data_len > 0) + munmap (data, data_len); + mach_port_deallocate (mach_task_self (), file); + + return 1; +} + +grub_int64_t +grub_util_get_fd_size_os (grub_util_fd_t fd, const char *name, unsigned *log_secsize) +{ + grub_uint32_t sector_size; + grub_disk_addr_t size; + unsigned log_sector_size; + + if (!grub_util_hurd_get_disk_info (name, §or_size, NULL, &size, NULL)) + return -1; + + if (sector_size & (sector_size - 1) || !sector_size) + return -1; + for (log_sector_size = 0; + (1 << log_sector_size) < sector_size; + log_sector_size++); + + if (log_secsize) + *log_secsize = log_sector_size; + + return size << log_sector_size; +} + +void +grub_hostdisk_flush_initial_buffer (const char *os_dev __attribute__ ((unused))) +{ +} |