diff options
Diffstat (limited to 'util/probe.c')
| -rw-r--r-- | util/probe.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/util/probe.c b/util/probe.c new file mode 100644 index 0000000..fa7ca34 --- /dev/null +++ b/util/probe.c @@ -0,0 +1,172 @@ +/* grub-probe.c - probe device information for a given path */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2005,2006,2007,2008,2009,2010,2013 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.h> +#include <grub/types.h> +#include <grub/emu/misc.h> +#include <grub/util/misc.h> +#include <grub/device.h> +#include <grub/disk.h> +#include <grub/file.h> +#include <grub/fs.h> +#include <grub/partition.h> +#include <grub/msdos_partition.h> +#include <grub/gpt_partition.h> +#include <grub/emu/hostdisk.h> +#include <grub/emu/getroot.h> +#include <grub/term.h> +#include <grub/env.h> +#include <grub/diskfilter.h> +#include <grub/i18n.h> +#include <grub/emu/misc.h> +#include <grub/util/ofpath.h> +#include <grub/crypto.h> +#include <grub/cryptodisk.h> + +#include <string.h> + +/* Since OF path names can have "," characters in them, and GRUB + internally uses "," to indicate partitions (unlike OF which uses + ":" for this purpose) we escape such commas. */ +static char * +escape_of_path (const char *orig_path) +{ + char *new_path, *d, c; + const char *p; + + if (!strchr (orig_path, ',')) + return (char *) xstrdup (orig_path); + + new_path = xmalloc (strlen (orig_path) * 2 + 1); + + p = orig_path; + d = new_path; + while ((c = *p++) != '\0') + { + if (c == ',') + *d++ = '\\'; + *d++ = c; + } + *d = 0; + + return new_path; +} + +char * +grub_util_guess_bios_drive (const char *orig_path) +{ + char *canon; + char *ptr; + canon = grub_canonicalize_file_name (orig_path); + if (!canon) + return NULL; + ptr = strrchr (orig_path, '/'); + if (ptr) + ptr++; + else + ptr = canon; + if ((ptr[0] == 's' || ptr[0] == 'h') && ptr[1] == 'd') + { + int num = ptr[2] - 'a'; + free (canon); + return xasprintf ("hd%d", num); + } + if (ptr[0] == 'f' && ptr[1] == 'd') + { + int num = atoi (ptr + 2); + free (canon); + return xasprintf ("fd%d", num); + } + free (canon); + return NULL; +} + +char * +grub_util_guess_efi_drive (const char *orig_path) +{ + char *canon; + char *ptr; + canon = grub_canonicalize_file_name (orig_path); + if (!canon) + return NULL; + ptr = strrchr (orig_path, '/'); + if (ptr) + ptr++; + else + ptr = canon; + if ((ptr[0] == 's' || ptr[0] == 'h') && ptr[1] == 'd') + { + int num = ptr[2] - 'a'; + free (canon); + return xasprintf ("hd%d", num); + } + if (ptr[0] == 'f' && ptr[1] == 'd') + { + int num = atoi (ptr + 2); + free (canon); + return xasprintf ("fd%d", num); + } + free (canon); + return NULL; +} + +char * +grub_util_guess_baremetal_drive (const char *orig_path) +{ + char *canon; + char *ptr; + canon = grub_canonicalize_file_name (orig_path); + if (!canon) + return NULL; + ptr = strrchr (orig_path, '/'); + if (ptr) + ptr++; + else + ptr = canon; + if (ptr[0] == 'h' && ptr[1] == 'd') + { + int num = ptr[2] - 'a'; + free (canon); + return xasprintf ("ata%d", num); + } + if (ptr[0] == 's' && ptr[1] == 'd') + { + int num = ptr[2] - 'a'; + free (canon); + return xasprintf ("ahci%d", num); + } + free (canon); + return NULL; +} + +void +grub_util_fprint_full_disk_name (FILE *f, + const char *drive, grub_device_t dev) +{ + char *dname = escape_of_path (drive); + if (dev->disk->partition) + { + char *pname = grub_partition_get_name (dev->disk->partition); + fprintf (f, "%s,%s", dname, pname); + free (pname); + } + else + fprintf (f, "%s", dname); + free (dname); +} |