Move OS-dependent files to grub-core/osdep and document it.
This commit is contained in:
Vladimir 'phcoder' Serbinenko
parent
a5b0365ab2
commit
672fa55e81
30 changed files with 39 additions and 30 deletions
199
grub-core/osdep/bsd/getroot.c
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199
grub-core/osdep/bsd/getroot.c
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 1999,2000,2001,2002,2003,2006,2007,2008,2009,2010,2011,2012,2013 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 <config.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <assert.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <string.h>
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#include <dirent.h>
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#include <errno.h>
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#include <error.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#ifdef HAVE_LIMITS_H
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#include <limits.h>
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#endif
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#include <grub/types.h>
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#include <grub/util/misc.h>
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#include <grub/util/lvm.h>
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#include <grub/mm.h>
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#include <grub/misc.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 <sys/wait.h>
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# include <sys/ioctl.h>
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# include <sys/disklabel.h> /* struct disklabel */
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# include <sys/disk.h> /* struct dkwedge_info */
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# ifdef HAVE_GETRAWPARTITION
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# include <util.h> /* getrawpartition */
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# endif /* HAVE_GETRAWPARTITION */
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#if defined(__NetBSD__)
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# include <sys/fdio.h>
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#endif
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#if defined(__OpenBSD__)
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# include <sys/dkio.h>
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#endif
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char *
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grub_util_part_to_disk (const char *os_dev, struct stat *st,
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int *is_part)
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{
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int rawpart = -1;
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# ifdef HAVE_GETRAWPARTITION
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rawpart = getrawpartition();
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# endif /* HAVE_GETRAWPARTITION */
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if (rawpart < 0)
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return xstrdup (os_dev);
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#if defined(__NetBSD__)
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/* NetBSD disk wedges are of the form "/dev/rdk.*". */
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if (strncmp ("/dev/rdk", os_dev, sizeof("/dev/rdk") - 1) == 0)
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{
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struct dkwedge_info dkw;
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int fd;
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fd = open (os_dev, O_RDONLY);
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if (fd == -1)
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{
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grub_error (GRUB_ERR_BAD_DEVICE,
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N_("cannot open `%s': %s"), os_dev,
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strerror (errno));
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return xstrdup (os_dev);
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}
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/* We don't call configure_device_driver since this isn't a floppy device name. */
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if (ioctl (fd, DIOCGWEDGEINFO, &dkw) == -1)
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{
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grub_error (GRUB_ERR_BAD_DEVICE,
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"cannot get disk wedge info of `%s'", os_dev);
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close (fd);
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return xstrdup (os_dev);
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}
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*is_part = (dkw.dkw_offset != 0);
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close (fd);
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return xasprintf ("/dev/r%s%c", dkw.dkw_parent, 'a' + rawpart);
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}
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#endif
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/* NetBSD (disk label) partitions are of the form "/dev/r[a-z]+[0-9][a-z]". */
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if (strncmp ("/dev/r", os_dev, sizeof("/dev/r") - 1) == 0 &&
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(os_dev[sizeof("/dev/r") - 1] >= 'a' && os_dev[sizeof("/dev/r") - 1] <= 'z') &&
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strncmp ("fd", os_dev + sizeof("/dev/r") - 1, sizeof("fd") - 1) != 0) /* not a floppy device name */
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{
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char *path = xstrdup (os_dev);
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char *p;
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for (p = path + sizeof("/dev/r"); *p >= 'a' && *p <= 'z'; p++);
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if (grub_isdigit(*p))
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{
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p++;
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if ((*p >= 'a' && *p <= 'z') && (*(p+1) == '\0'))
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{
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if (*p != 'a' + rawpart)
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*is_part = 1;
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/* path matches the required regular expression and
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p points to its last character. */
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*p = 'a' + rawpart;
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}
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}
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return path;
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}
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return xstrdup (os_dev);
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}
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enum grub_dev_abstraction_types
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grub_util_get_dev_abstraction_os (const char *os_dev __attribute__((unused)))
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{
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return GRUB_DEV_ABSTRACTION_NONE;
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}
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int
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grub_util_pull_device_os (const char *os_dev __attribute__ ((unused)),
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enum grub_dev_abstraction_types ab __attribute__ ((unused)))
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{
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return 0;
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}
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char *
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grub_util_get_grub_dev_os (const char *os_dev __attribute__ ((unused)))
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{
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return NULL;
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}
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grub_disk_addr_t
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grub_util_find_partition_start_os (const char *dev)
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{
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int fd;
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# if defined(__NetBSD__)
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struct dkwedge_info dkw;
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# endif /* defined(__NetBSD__) */
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struct disklabel label;
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int p_index;
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fd = open (dev, O_RDONLY);
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if (fd == -1)
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{
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grub_error (GRUB_ERR_BAD_DEVICE, N_("cannot open `%s': %s"),
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dev, strerror (errno));
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return 0;
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}
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# if defined(__NetBSD__)
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configure_device_driver (fd);
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/* First handle the case of disk wedges. */
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if (ioctl (fd, DIOCGWEDGEINFO, &dkw) == 0)
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{
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close (fd);
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return (grub_disk_addr_t) dkw.dkw_offset;
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}
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# endif /* defined(__NetBSD__) */
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if (ioctl (fd, DIOCGDINFO, &label) == -1)
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{
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grub_error (GRUB_ERR_BAD_DEVICE,
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"cannot get disk label of `%s'", dev);
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close (fd);
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return 0;
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}
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close (fd);
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if (dev[0])
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p_index = dev[strlen(dev) - 1] - 'a';
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else
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p_index = -1;
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if (p_index >= label.d_npartitions || p_index < 0)
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{
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grub_error (GRUB_ERR_BAD_DEVICE,
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"no disk label entry for `%s'", dev);
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return 0;
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}
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return (grub_disk_addr_t) label.d_partitions[p_index].p_offset;
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}
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115
grub-core/osdep/bsd/hostdisk.c
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115
grub-core/osdep/bsd/hostdisk.c
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@ -0,0 +1,115 @@
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/*
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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 <sys/ioctl.h>
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# include <sys/disklabel.h> /* struct disklabel */
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# include <sys/disk.h> /* struct dkwedge_info */
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# ifdef HAVE_GETRAWPARTITION
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# include <util.h> /* getrawpartition */
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# endif /* HAVE_GETRAWPARTITION */
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# if defined(__NetBSD__)
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# include <sys/fdio.h>
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# endif
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# if defined(__OpenBSD__)
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# include <sys/dkio.h>
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# endif
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#if defined(__NetBSD__)
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/* Adjust device driver parameters. This function should be called just
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after successfully opening the device. For now, it simply prevents the
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floppy driver from retrying operations on failure, as otherwise the
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driver takes a while to abort when there is no floppy in the drive. */
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void
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grub_hostdisk_configure_device_driver (grub_util_fd_t fd)
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{
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struct stat st;
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if (fstat (fd, &st) < 0 || ! S_ISCHR (st.st_mode))
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return;
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if (major(st.st_rdev) == RAW_FLOPPY_MAJOR)
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{
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int floppy_opts;
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if (ioctl (fd, FDIOCGETOPTS, &floppy_opts) == -1)
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return;
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floppy_opts |= FDOPT_NORETRY;
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if (ioctl (fd, FDIOCSETOPTS, &floppy_opts) == -1)
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return;
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}
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}
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#else
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void
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grub_hostdisk_configure_device_driver (grub_util_fd_t fd __attribute__ ((unused)))
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{
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}
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#endif
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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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struct disklabel label;
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unsigned sector_size, log_sector_size;
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grub_hostdisk_configure_device_driver (fd);
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if (ioctl (fd, DIOCGDINFO, &label) == -1)
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return -1;
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sector_size = label.d_secsize;
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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 (grub_uint64_t) label.d_secperunit << 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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