diff options
Diffstat (limited to 'grub-core/commands/search_wrap.c')
-rw-r--r-- | grub-core/commands/search_wrap.c | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/grub-core/commands/search_wrap.c b/grub-core/commands/search_wrap.c new file mode 100644 index 0000000..47fc8eb --- /dev/null +++ b/grub-core/commands/search_wrap.c @@ -0,0 +1,220 @@ +/* search.c - search devices based on a file or a filesystem label */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2005,2007,2008,2009 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 <grub/types.h> +#include <grub/misc.h> +#include <grub/mm.h> +#include <grub/err.h> +#include <grub/dl.h> +#include <grub/env.h> +#include <grub/extcmd.h> +#include <grub/search.h> +#include <grub/i18n.h> + +GRUB_MOD_LICENSE ("GPLv3+"); + +static const struct grub_arg_option options[] = + { + {"file", 'f', 0, N_("Search devices by a file."), 0, 0}, + {"label", 'l', 0, N_("Search devices by a filesystem label."), + 0, 0}, + {"fs-uuid", 'u', 0, N_("Search devices by a filesystem UUID."), + 0, 0}, + {"set", 's', GRUB_ARG_OPTION_OPTIONAL, + N_("Set a variable to the first device found."), N_("VARNAME"), + ARG_TYPE_STRING}, + {"no-floppy", 'n', 0, N_("Do not probe any floppy drive."), 0, 0}, + {"hint", 'h', GRUB_ARG_OPTION_REPEATABLE, + N_("First try the device HINT. If HINT ends in comma, " + "also try subpartitions"), N_("HINT"), ARG_TYPE_STRING}, + {"hint-ieee1275", 0, GRUB_ARG_OPTION_REPEATABLE, + N_("First try the device HINT if currently running on IEEE1275. " + "If HINT ends in comma, also try subpartitions"), + N_("HINT"), ARG_TYPE_STRING}, + {"hint-bios", 0, GRUB_ARG_OPTION_REPEATABLE, + N_("First try the device HINT if currently running on BIOS. " + "If HINT ends in comma, also try subpartitions"), + N_("HINT"), ARG_TYPE_STRING}, + {"hint-baremetal", 0, GRUB_ARG_OPTION_REPEATABLE, + N_("First try the device HINT if direct hardware access is supported. " + "If HINT ends in comma, also try subpartitions"), + N_("HINT"), ARG_TYPE_STRING}, + {"hint-efi", 0, GRUB_ARG_OPTION_REPEATABLE, + N_("First try the device HINT if currently running on EFI. " + "If HINT ends in comma, also try subpartitions"), + N_("HINT"), ARG_TYPE_STRING}, + {"hint-arc", 0, GRUB_ARG_OPTION_REPEATABLE, + N_("First try the device HINT if currently running on ARC." + " If HINT ends in comma, also try subpartitions"), + N_("HINT"), ARG_TYPE_STRING}, + {0, 0, 0, 0, 0, 0} + }; + +enum options + { + SEARCH_FILE, + SEARCH_LABEL, + SEARCH_FS_UUID, + SEARCH_SET, + SEARCH_NO_FLOPPY, + SEARCH_HINT, + SEARCH_HINT_IEEE1275, + SEARCH_HINT_BIOS, + SEARCH_HINT_BAREMETAL, + SEARCH_HINT_EFI, + SEARCH_HINT_ARC, + }; + +static grub_err_t +grub_cmd_search (grub_extcmd_context_t ctxt, int argc, char **args) +{ + struct grub_arg_list *state = ctxt->state; + const char *var = 0; + const char *id = 0; + int i = 0, j = 0, nhints = 0; + char **hints = NULL; + + if (state[SEARCH_HINT].set) + for (i = 0; state[SEARCH_HINT].args[i]; i++) + nhints++; + +#ifdef GRUB_MACHINE_IEEE1275 + if (state[SEARCH_HINT_IEEE1275].set) + for (i = 0; state[SEARCH_HINT_IEEE1275].args[i]; i++) + nhints++; +#endif + +#ifdef GRUB_MACHINE_EFI + if (state[SEARCH_HINT_EFI].set) + for (i = 0; state[SEARCH_HINT_EFI].args[i]; i++) + nhints++; +#endif + +#ifdef GRUB_MACHINE_PCBIOS + if (state[SEARCH_HINT_BIOS].set) + for (i = 0; state[SEARCH_HINT_BIOS].args[i]; i++) + nhints++; +#endif + +#ifdef GRUB_MACHINE_ARC + if (state[SEARCH_HINT_ARC].set) + for (i = 0; state[SEARCH_HINT_ARC].args[i]; i++) + nhints++; +#endif + + if (state[SEARCH_HINT_BAREMETAL].set) + for (i = 0; state[SEARCH_HINT_BAREMETAL].args[i]; i++) + nhints++; + + hints = grub_calloc (nhints, sizeof (hints[0])); + if (!hints) + return grub_errno; + j = 0; + + if (state[SEARCH_HINT].set) + for (i = 0; state[SEARCH_HINT].args[i]; i++) + hints[j++] = state[SEARCH_HINT].args[i]; + +#ifdef GRUB_MACHINE_IEEE1275 + if (state[SEARCH_HINT_IEEE1275].set) + for (i = 0; state[SEARCH_HINT_IEEE1275].args[i]; i++) + hints[j++] = state[SEARCH_HINT_IEEE1275].args[i]; +#endif + +#ifdef GRUB_MACHINE_EFI + if (state[SEARCH_HINT_EFI].set) + for (i = 0; state[SEARCH_HINT_EFI].args[i]; i++) + hints[j++] = state[SEARCH_HINT_EFI].args[i]; +#endif + +#ifdef GRUB_MACHINE_ARC + if (state[SEARCH_HINT_ARC].set) + for (i = 0; state[SEARCH_HINT_ARC].args[i]; i++) + hints[j++] = state[SEARCH_HINT_ARC].args[i]; +#endif + +#ifdef GRUB_MACHINE_PCBIOS + if (state[SEARCH_HINT_BIOS].set) + for (i = 0; state[SEARCH_HINT_BIOS].args[i]; i++) + hints[j++] = state[SEARCH_HINT_BIOS].args[i]; +#endif + + if (state[SEARCH_HINT_BAREMETAL].set) + for (i = 0; state[SEARCH_HINT_BAREMETAL].args[i]; i++) + hints[j++] = state[SEARCH_HINT_BAREMETAL].args[i]; + + /* Skip hints for future platforms. */ + for (j = 0; j < argc; j++) + if (grub_memcmp (args[j], "--hint-", sizeof ("--hint-") - 1) != 0) + break; + + if (state[SEARCH_SET].set) + var = state[SEARCH_SET].arg ? state[SEARCH_SET].arg : "root"; + + if (argc != j) + id = args[j]; + else if (state[SEARCH_SET].set && state[SEARCH_SET].arg) + { + id = state[SEARCH_SET].arg; + var = "root"; + } + else + { + grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected")); + goto out; + } + + if (state[SEARCH_LABEL].set) + grub_search_label (id, var, state[SEARCH_NO_FLOPPY].set, + hints, nhints); + else if (state[SEARCH_FS_UUID].set) + grub_search_fs_uuid (id, var, state[SEARCH_NO_FLOPPY].set, + hints, nhints); + else if (state[SEARCH_FILE].set) + grub_search_fs_file (id, var, state[SEARCH_NO_FLOPPY].set, + hints, nhints); + else + grub_error (GRUB_ERR_INVALID_COMMAND, "unspecified search type"); + +out: + grub_free (hints); + return grub_errno; +} + +static grub_extcmd_t cmd; + +GRUB_MOD_INIT(search) +{ + cmd = + grub_register_extcmd ("search", grub_cmd_search, + GRUB_COMMAND_FLAG_EXTRACTOR | GRUB_COMMAND_ACCEPT_DASH, + N_("[-f|-l|-u|-s|-n] [--hint HINT [--hint HINT] ...]" + " NAME"), + N_("Search devices by file, filesystem label" + " or filesystem UUID." + " If --set is specified, the first device found is" + " set to a variable. If no variable name is" + " specified, `root' is used."), + options); +} + +GRUB_MOD_FINI(search) +{ + grub_unregister_extcmd (cmd); +} |