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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
commit | 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e (patch) | |
tree | 32451fa3cdd9321fb2591fada9891b2cb70a9cd1 /grub-core/osdep/freebsd/hostdisk.c | |
parent | Initial commit. (diff) | |
download | grub2-6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e.tar.xz grub2-6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e.zip |
Adding upstream version 2.06.upstream/2.06upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'grub-core/osdep/freebsd/hostdisk.c')
-rw-r--r-- | grub-core/osdep/freebsd/hostdisk.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/grub-core/osdep/freebsd/hostdisk.c b/grub-core/osdep/freebsd/hostdisk.c new file mode 100644 index 0000000..6145d07 --- /dev/null +++ b/grub-core/osdep/freebsd/hostdisk.c @@ -0,0 +1,128 @@ +/* + * 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 <sys/disk.h> /* DIOCGMEDIASIZE */ +# include <sys/param.h> +# include <sys/sysctl.h> +# include <sys/mount.h> +# include <libgeom.h> + +grub_int64_t +grub_util_get_fd_size_os (grub_util_fd_t fd, const char *name, unsigned *log_secsize) +{ + unsigned long long nr; + unsigned sector_size, log_sector_size; + + if (ioctl (fd, DIOCGMEDIASIZE, &nr)) + return -1; + + if (ioctl (fd, DIOCGSECTORSIZE, §or_size)) + 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; + + if (nr & (sector_size - 1)) + grub_util_error ("%s", _("unaligned device size")); + + return nr; +} + +void +grub_hostdisk_flush_initial_buffer (const char *os_dev __attribute__ ((unused))) +{ +} + +grub_util_fd_t +grub_util_fd_open (const char *os_dev, int flags) +{ + grub_util_fd_t ret; + int sysctl_flags, sysctl_oldflags; + size_t sysctl_size = sizeof (sysctl_flags); + +#ifdef O_LARGEFILE + flags |= O_LARGEFILE; +#endif +#ifdef O_BINARY + flags |= O_BINARY; +#endif + + if (sysctlbyname ("kern.geom.debugflags", &sysctl_oldflags, &sysctl_size, NULL, 0)) + { + grub_error (GRUB_ERR_BAD_DEVICE, "cannot get current flags of sysctl kern.geom.debugflags"); + return GRUB_UTIL_FD_INVALID; + } + sysctl_flags = sysctl_oldflags | 0x10; + if (! (sysctl_oldflags & 0x10) + && sysctlbyname ("kern.geom.debugflags", NULL , 0, &sysctl_flags, sysctl_size)) + { + if (errno == EPERM) + /* Running as an unprivileged user; don't worry about restoring + flags, although if we try to write to anything interesting such + as the MBR then we may fail later. */ + sysctl_oldflags = 0x10; + else + { + grub_error (GRUB_ERR_BAD_DEVICE, "cannot set flags of sysctl kern.geom.debugflags"); + return GRUB_UTIL_FD_INVALID; + } + } + + ret = open (os_dev, flags, S_IROTH | S_IRGRP | S_IRUSR | S_IWUSR); + + if (! (sysctl_oldflags & 0x10) + && sysctlbyname ("kern.geom.debugflags", NULL , 0, &sysctl_oldflags, sysctl_size)) + { + grub_error (GRUB_ERR_BAD_DEVICE, "cannot set flags back to the old value for sysctl kern.geom.debugflags"); + close (ret); + return GRUB_UTIL_FD_INVALID; + } + + return ret; +} |