diff options
Diffstat (limited to 'grub-core/osdep/bsd/hostdisk.c')
-rw-r--r-- | grub-core/osdep/bsd/hostdisk.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/grub-core/osdep/bsd/hostdisk.c b/grub-core/osdep/bsd/hostdisk.c new file mode 100644 index 0000000..5912d14 --- /dev/null +++ b/grub-core/osdep/bsd/hostdisk.c @@ -0,0 +1,130 @@ +/* + * 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/ioctl.h> +# include <sys/disklabel.h> /* struct disklabel */ +# include <sys/disk.h> /* struct dkwedge_info */ +# ifdef HAVE_GETRAWPARTITION +# include <util.h> /* getrawpartition */ +# endif /* HAVE_GETRAWPARTITION */ +# if defined(__NetBSD__) +# include <sys/fdio.h> +# endif +# if defined(__OpenBSD__) +# include <sys/dkio.h> +# endif + +#if defined(__NetBSD__) +/* Adjust device driver parameters. This function should be called just + after successfully opening the device. For now, it simply prevents the + floppy driver from retrying operations on failure, as otherwise the + driver takes a while to abort when there is no floppy in the drive. */ +static void +configure_device_driver (grub_util_fd_t fd) +{ + struct stat st; + + if (fstat (fd, &st) < 0 || ! S_ISCHR (st.st_mode)) + return; + if (major(st.st_rdev) == RAW_FLOPPY_MAJOR) + { + int floppy_opts; + + if (ioctl (fd, FDIOCGETOPTS, &floppy_opts) == -1) + return; + floppy_opts |= FDOPT_NORETRY; + if (ioctl (fd, FDIOCSETOPTS, &floppy_opts) == -1) + return; + } +} +grub_util_fd_t +grub_util_fd_open (const char *os_dev, int flags) +{ + grub_util_fd_t ret; + +#ifdef O_LARGEFILE + flags |= O_LARGEFILE; +#endif +#ifdef O_BINARY + flags |= O_BINARY; +#endif + + ret = open (os_dev, flags, S_IROTH | S_IRGRP | S_IRUSR | S_IWUSR); + if (ret >= 0) + configure_device_driver (fd); + return ret; +} + +#endif + +grub_int64_t +grub_util_get_fd_size_os (grub_util_fd_t fd, const char *name, unsigned *log_secsize) +{ + struct disklabel label; + unsigned sector_size, log_sector_size; + +#if defined(__NetBSD__) + grub_hostdisk_configure_device_driver (fd); +#endif + + if (ioctl (fd, DIOCGDINFO, &label) == -1) + return -1; + + sector_size = label.d_secsize; + 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 (grub_uint64_t) label.d_secperunit << log_sector_size; +} + +void +grub_hostdisk_flush_initial_buffer (const char *os_dev __attribute__ ((unused))) +{ +} |