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-rw-r--r--grub-core/commands/search_wrap.c220
1 files changed, 220 insertions, 0 deletions
diff --git a/grub-core/commands/search_wrap.c b/grub-core/commands/search_wrap.c
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--- /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);
+}
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