f4c76c02ae
Signed-off-by: Peter Jones <pjones@redhat.com>
252 lines
6.0 KiB
Diff
252 lines
6.0 KiB
Diff
From 4b0168249752a531ddedbdc3884bc675cd24033d Mon Sep 17 00:00:00 2001
|
|
From: Fedora Ninjas <grub2-owner@fedoraproject.org>
|
|
Date: Tue, 22 Jan 2013 06:31:38 +0100
|
|
Subject: [PATCH 13/74] blscfg: add blscfg module to parse Boot Loader
|
|
Specification snippets
|
|
|
|
http://www.freedesktop.org/wiki/Specifications/BootLoaderSpec
|
|
|
|
Works like this:
|
|
|
|
insmod blscfg
|
|
bls_import
|
|
|
|
Done! You should now have menu items for your snippets in place.
|
|
|
|
Signed-off-by: Peter Jones <grub2-owner@fedoraproject.org>
|
|
---
|
|
grub-core/Makefile.core.def | 8 ++
|
|
grub-core/commands/blscfg.c | 201 ++++++++++++++++++++++++++++++++++++++++++++
|
|
2 files changed, 209 insertions(+)
|
|
create mode 100644 grub-core/commands/blscfg.c
|
|
|
|
diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
|
|
index a056b42..98b6485 100644
|
|
--- a/grub-core/Makefile.core.def
|
|
+++ b/grub-core/Makefile.core.def
|
|
@@ -733,6 +733,14 @@ module = {
|
|
};
|
|
|
|
module = {
|
|
+ name = blscfg;
|
|
+ common = commands/blscfg.c;
|
|
+ enable = i386_efi;
|
|
+ enable = x86_64_efi;
|
|
+ enable = i386_pc;
|
|
+};
|
|
+
|
|
+module = {
|
|
name = boot;
|
|
common = commands/boot.c;
|
|
i386_pc = lib/i386/pc/biosnum.c;
|
|
diff --git a/grub-core/commands/blscfg.c b/grub-core/commands/blscfg.c
|
|
new file mode 100644
|
|
index 0000000..4274aca
|
|
--- /dev/null
|
|
+++ b/grub-core/commands/blscfg.c
|
|
@@ -0,0 +1,201 @@
|
|
+/*-*- Mode: C; c-basic-offset: 2; indent-tabs-mode: t -*-*/
|
|
+
|
|
+/* bls.c - implementation of the boot loader spec */
|
|
+
|
|
+/*
|
|
+ * GRUB -- GRand Unified Bootloader
|
|
+ *
|
|
+ * 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/extcmd.h>
|
|
+#include <grub/i18n.h>
|
|
+#include <grub/fs.h>
|
|
+#include <grub/env.h>
|
|
+#include <grub/file.h>
|
|
+#include <grub/normal.h>
|
|
+
|
|
+GRUB_MOD_LICENSE ("GPLv3+");
|
|
+
|
|
+#ifdef GRUB_MACHINE_EFI
|
|
+#define GRUB_LINUX_CMD "linuxefi"
|
|
+#define GRUB_INITRD_CMD "initrdefi"
|
|
+#define GRUB_BLS_CONFIG_PATH "/EFI/fedora/loader/entries/"
|
|
+#define GRUB_BOOT_DEVICE "($boot)"
|
|
+#else
|
|
+#define GRUB_LINUX_CMD "linux"
|
|
+#define GRUB_INITRD_CMD "initrd"
|
|
+#define GRUB_BLS_CONFIG_PATH "/loader/entries/"
|
|
+#define GRUB_BOOT_DEVICE "($root)"
|
|
+#endif
|
|
+
|
|
+static int parse_entry (
|
|
+ const char *filename,
|
|
+ const struct grub_dirhook_info *info __attribute__ ((unused)),
|
|
+ void *data __attribute__ ((unused)))
|
|
+{
|
|
+ grub_size_t n;
|
|
+ char *p;
|
|
+ grub_file_t f = NULL;
|
|
+ grub_off_t sz;
|
|
+ char *title = NULL, *options = NULL, *clinux = NULL, *initrd = NULL, *src = NULL;
|
|
+ const char *args[2] = { NULL, NULL };
|
|
+
|
|
+ if (filename[0] == '.')
|
|
+ return 0;
|
|
+
|
|
+ n = grub_strlen (filename);
|
|
+ if (n <= 5)
|
|
+ return 0;
|
|
+
|
|
+ if (grub_strcmp (filename + n - 5, ".conf") != 0)
|
|
+ return 0;
|
|
+
|
|
+ p = grub_xasprintf (GRUB_BLS_CONFIG_PATH "%s", filename);
|
|
+
|
|
+ f = grub_file_open (p);
|
|
+ if (!f)
|
|
+ goto finish;
|
|
+
|
|
+ sz = grub_file_size (f);
|
|
+ if (sz == GRUB_FILE_SIZE_UNKNOWN || sz > 1024*1024)
|
|
+ goto finish;
|
|
+
|
|
+ for (;;)
|
|
+ {
|
|
+ char *buf;
|
|
+
|
|
+ buf = grub_file_getline (f);
|
|
+ if (!buf)
|
|
+ break;
|
|
+
|
|
+ if (grub_strncmp (buf, "title ", 6) == 0)
|
|
+ {
|
|
+ grub_free (title);
|
|
+ title = grub_strdup (buf + 6);
|
|
+ if (!title)
|
|
+ goto finish;
|
|
+ }
|
|
+ else if (grub_strncmp (buf, "options ", 8) == 0)
|
|
+ {
|
|
+ grub_free (options);
|
|
+ options = grub_strdup (buf + 8);
|
|
+ if (!options)
|
|
+ goto finish;
|
|
+ }
|
|
+ else if (grub_strncmp (buf, "linux ", 6) == 0)
|
|
+ {
|
|
+ grub_free (clinux);
|
|
+ clinux = grub_strdup (buf + 6);
|
|
+ if (!clinux)
|
|
+ goto finish;
|
|
+ }
|
|
+ else if (grub_strncmp (buf, "initrd ", 7) == 0)
|
|
+ {
|
|
+ grub_free (initrd);
|
|
+ initrd = grub_strdup (buf + 7);
|
|
+ if (!initrd)
|
|
+ goto finish;
|
|
+ }
|
|
+
|
|
+ grub_free(buf);
|
|
+ }
|
|
+
|
|
+ if (!linux)
|
|
+ {
|
|
+ grub_printf ("Skipping file %s with no 'linux' key.", p);
|
|
+ goto finish;
|
|
+ }
|
|
+
|
|
+ args[0] = title ? title : filename;
|
|
+
|
|
+ src = grub_xasprintf ("load_video\n"
|
|
+ "set gfx_payload=keep\n"
|
|
+ "insmod gzio\n"
|
|
+ GRUB_LINUX_CMD " %s%s%s%s\n"
|
|
+ "%s%s%s%s",
|
|
+ GRUB_BOOT_DEVICE, clinux, options ? " " : "", options ? options : "",
|
|
+ initrd ? GRUB_INITRD_CMD " " : "", initrd ? GRUB_BOOT_DEVICE : "", initrd ? initrd : "", initrd ? "\n" : "");
|
|
+
|
|
+ grub_normal_add_menu_entry (1, args, NULL, NULL, "bls", NULL, NULL, src, 0);
|
|
+
|
|
+finish:
|
|
+ grub_free (p);
|
|
+ grub_free (title);
|
|
+ grub_free (options);
|
|
+ grub_free (clinux);
|
|
+ grub_free (initrd);
|
|
+ grub_free (src);
|
|
+
|
|
+ if (f)
|
|
+ grub_file_close (f);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static grub_err_t
|
|
+grub_cmd_bls_import (grub_extcmd_context_t ctxt __attribute__ ((unused)),
|
|
+ int argc __attribute__ ((unused)),
|
|
+ char **args __attribute__ ((unused)))
|
|
+{
|
|
+ grub_fs_t fs;
|
|
+ grub_device_t dev;
|
|
+ static grub_err_t r;
|
|
+ const char *devid;
|
|
+
|
|
+ devid = grub_env_get ("root");
|
|
+ if (!devid)
|
|
+ return grub_error (GRUB_ERR_FILE_NOT_FOUND, N_("variable `%s' isn't set"), "root");
|
|
+
|
|
+ dev = grub_device_open (devid);
|
|
+ if (!dev)
|
|
+ return grub_errno;
|
|
+
|
|
+ fs = grub_fs_probe (dev);
|
|
+ if (!fs)
|
|
+ {
|
|
+ r = grub_errno;
|
|
+ goto finish;
|
|
+ }
|
|
+
|
|
+ r = fs->dir (dev, GRUB_BLS_CONFIG_PATH, parse_entry, NULL);
|
|
+
|
|
+finish:
|
|
+ if (dev)
|
|
+ grub_device_close (dev);
|
|
+
|
|
+ return r;
|
|
+}
|
|
+
|
|
+static grub_extcmd_t cmd;
|
|
+
|
|
+GRUB_MOD_INIT(bls)
|
|
+{
|
|
+ cmd = grub_register_extcmd ("bls_import",
|
|
+ grub_cmd_bls_import,
|
|
+ 0,
|
|
+ NULL,
|
|
+ N_("Import Boot Loader Specification snippets."),
|
|
+ NULL);
|
|
+}
|
|
+
|
|
+GRUB_MOD_FINI(bls)
|
|
+{
|
|
+ grub_unregister_extcmd (cmd);
|
|
+}
|
|
--
|
|
2.4.3
|
|
|