/* 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 . */ #include #include #include #include #include #include #include #include #include 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); }