+2013-06-15 Vladimir Serbinenko <phcoder@gmail.com>
+
+ Support for cbfs. Also factor out the part which is common
+ for all archives to a separate module. This splits tar from cpio
+ as they are very different but keeps cpio, cpio_be, odc and newc
+ together since they're very similar.
+
2013-06-15 David Michael <fedora.dm0@gmail.com>
* configure.ac (FREETYPE): Change AC_CHECK_PROGS to AC_CHECK_TOOLS.
common = grub-core/fs/afs.c;
common = grub-core/fs/bfs.c;
common = grub-core/fs/btrfs.c;
+ common = grub-core/fs/cbfs.c;
+ common = grub-core/fs/archelp.c;
common = grub-core/fs/cpio.c;
common = grub-core/fs/cpio_be.c;
common = grub-core/fs/odc.c;
cppflags = '-I$(srcdir)/lib/posix_wrap -I$(srcdir)/lib/minilzo -DMINILZO_HAVE_CONFIG_H';
};
+module = {
+ name = archelp;
+ common = fs/archelp.c;
+};
+
+module = {
+ name = cbfs;
+ common = fs/cbfs.c;
+};
+
module = {
name = cpio;
common = fs/cpio.c;
break;
/* Virtual disks. */
+ /* GRUB dynamically generated files. */
case GRUB_DISK_DEVICE_PROCFS_ID:
+ /* To access through host OS routines (grub-emu only). */
case GRUB_DISK_DEVICE_HOST_ID:
+ /* To access coreboot roms. */
+ case GRUB_DISK_DEVICE_CBFSDISK_ID:
/* GRUB-only memdisk. Can't match any of firmware devices. */
case GRUB_DISK_DEVICE_MEMDISK_ID:
grub_dprintf ("nativedisk", "Skipping native disk %s\n",
--- /dev/null
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2007,2008,2009,2013 Free Software Foundation, Inc.
+ *
+ * This program 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.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/archelp.h>
+#include <grub/err.h>
+#include <grub/fs.h>
+#include <grub/disk.h>
+#include <grub/dl.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static inline void
+canonicalize (char *name)
+{
+ char *iptr, *optr;
+ for (iptr = name, optr = name; *iptr; )
+ {
+ while (*iptr == '/')
+ iptr++;
+ if (iptr[0] == '.' && (iptr[1] == '/' || iptr[1] == 0))
+ {
+ iptr += 2;
+ continue;
+ }
+ if (iptr[0] == '.' && iptr[1] == '.' && (iptr[2] == '/' || iptr[2] == 0))
+ {
+ iptr += 3;
+ if (optr == name)
+ continue;
+ for (optr -= 2; optr >= name && *optr != '/'; optr--);
+ optr++;
+ continue;
+ }
+ while (*iptr && *iptr != '/')
+ *optr++ = *iptr++;
+ if (*iptr)
+ *optr++ = *iptr++;
+ }
+ *optr = 0;
+}
+
+static grub_err_t
+handle_symlink (struct grub_archelp_data *data,
+ struct grub_archelp_ops *arcops,
+ const char *fn, char **name,
+ grub_uint32_t mode, int *restart)
+{
+ grub_size_t flen;
+ char *target;
+ char *ptr;
+ char *lastslash;
+ grub_size_t prefixlen;
+ char *rest;
+ char *linktarget;
+
+ *restart = 0;
+
+ if ((mode & GRUB_ARCHELP_ATTR_TYPE) != GRUB_ARCHELP_ATTR_LNK
+ || !arcops->get_link_target)
+ return GRUB_ERR_NONE;
+ flen = grub_strlen (fn);
+ if (grub_memcmp (*name, fn, flen) != 0
+ || ((*name)[flen] != 0 && (*name)[flen] != '/'))
+ return GRUB_ERR_NONE;
+ rest = *name + flen;
+ lastslash = rest;
+ if (*rest)
+ rest++;
+ while (lastslash >= *name && *lastslash != '/')
+ lastslash--;
+ if (lastslash >= *name)
+ prefixlen = lastslash - *name;
+ else
+ prefixlen = 0;
+
+ if (prefixlen)
+ prefixlen++;
+
+ linktarget = arcops->get_link_target (data);
+ if (!linktarget)
+ return grub_errno;
+ if (linktarget[0] == '\0')
+ return GRUB_ERR_NONE;
+ target = grub_malloc (grub_strlen (linktarget) + grub_strlen (*name) + 2);
+ if (!target)
+ return grub_errno;
+
+ grub_strcpy (target + prefixlen, linktarget);
+ grub_free (linktarget);
+ if (target[prefixlen] == '/')
+ {
+ ptr = grub_stpcpy (target, target + prefixlen);
+ ptr = grub_stpcpy (ptr, rest);
+ *ptr = 0;
+ grub_dprintf ("archelp", "symlink redirected %s to %s\n",
+ *name, target);
+ grub_free (*name);
+
+ canonicalize (target);
+ *name = target;
+ *restart = 1;
+ return GRUB_ERR_NONE;
+ }
+ if (prefixlen)
+ {
+ grub_memcpy (target, *name, prefixlen);
+ target[prefixlen-1] = '/';
+ }
+ grub_strcat (target, rest);
+ grub_dprintf ("archelp", "symlink redirected %s to %s\n",
+ *name, target);
+ grub_free (*name);
+ canonicalize (target);
+ *name = target;
+ *restart = 1;
+ return GRUB_ERR_NONE;
+}
+
+grub_err_t
+grub_archelp_dir (struct grub_archelp_data *data,
+ struct grub_archelp_ops *arcops,
+ const char *path_in,
+ grub_fs_dir_hook_t hook, void *hook_data)
+{
+ char *prev, *name, *path, *ptr;
+ grub_size_t len;
+ int symlinknest = 0;
+
+ path = grub_strdup (path_in + 1);
+ if (!path)
+ return grub_errno;
+ canonicalize (path);
+ for (ptr = path + grub_strlen (path) - 1; ptr >= path && *ptr == '/'; ptr--)
+ *ptr = 0;
+
+ prev = 0;
+
+ len = grub_strlen (path);
+ while (1)
+ {
+ grub_int32_t mtime;
+ grub_uint32_t mode;
+ grub_err_t err;
+
+ if (arcops->find_file (data, &name, &mtime, &mode))
+ goto fail;
+
+ if (mode == GRUB_ARCHELP_ATTR_END)
+ break;
+
+ canonicalize (name);
+
+ if (grub_memcmp (path, name, len) == 0
+ && (name[len] == 0 || name[len] == '/' || len == 0))
+ {
+ char *p, *n;
+
+ n = name + len;
+ while (*n == '/')
+ n++;
+
+ p = grub_strchr (n, '/');
+ if (p)
+ *p = 0;
+
+ if (((!prev) || (grub_strcmp (prev, name) != 0)) && *n != 0)
+ {
+ struct grub_dirhook_info info;
+ grub_memset (&info, 0, sizeof (info));
+ info.dir = (p != NULL) || ((mode & GRUB_ARCHELP_ATTR_TYPE)
+ == GRUB_ARCHELP_ATTR_DIR);
+ if (!(mode & GRUB_ARCHELP_ATTR_NOTIME))
+ {
+ info.mtime = mtime;
+ info.mtimeset = 1;
+ }
+ if (hook (n, &info, hook_data))
+ {
+ grub_free (name);
+ goto fail;
+ }
+ grub_free (prev);
+ prev = name;
+ }
+ else
+ {
+ int restart = 0;
+ err = handle_symlink (data, arcops, name,
+ &path, mode, &restart);
+ grub_free (name);
+ if (err)
+ goto fail;
+ if (restart)
+ {
+ len = grub_strlen (path);
+ if (++symlinknest == 8)
+ {
+ grub_error (GRUB_ERR_SYMLINK_LOOP,
+ N_("too deep nesting of symlinks"));
+ goto fail;
+ }
+ arcops->rewind (data);
+ }
+ }
+ }
+ else
+ grub_free (name);
+ }
+
+fail:
+
+ grub_free (path);
+ grub_free (prev);
+
+ return grub_errno;
+}
+
+grub_err_t
+grub_archelp_open (struct grub_archelp_data *data,
+ struct grub_archelp_ops *arcops,
+ const char *name_in)
+{
+ char *fn;
+ char *name = grub_strdup (name_in + 1);
+ int symlinknest = 0;
+
+ if (!name)
+ return grub_errno;
+
+ canonicalize (name);
+
+ while (1)
+ {
+ grub_uint32_t mode;
+ int restart;
+
+ if (arcops->find_file (data, &fn, NULL, &mode))
+ goto fail;
+
+ if (mode == GRUB_ARCHELP_ATTR_END)
+ {
+ grub_error (GRUB_ERR_FILE_NOT_FOUND, N_("file `%s' not found"), name_in);
+ break;
+ }
+
+ canonicalize (fn);
+
+ if (handle_symlink (data, arcops, fn, &name, mode, &restart))
+ {
+ grub_free (fn);
+ goto fail;
+ }
+
+ if (restart)
+ {
+ arcops->rewind (data);
+ if (++symlinknest == 8)
+ {
+ grub_error (GRUB_ERR_SYMLINK_LOOP,
+ N_("too deep nesting of symlinks"));
+ goto fail;
+ }
+ goto no_match;
+ }
+
+ if (grub_strcmp (name, fn) != 0)
+ goto no_match;
+
+ grub_free (fn);
+ grub_free (name);
+
+ return GRUB_ERR_NONE;
+
+ no_match:
+
+ grub_free (fn);
+ }
+
+fail:
+ grub_free (name);
+
+ return grub_errno;
+}
--- /dev/null
+/* cbfs.c - cbfs and tar filesystem. */
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2007,2008,2009,2013 Free Software Foundation, Inc.
+ *
+ * This program 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.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/misc.h>
+#include <grub/disk.h>
+#include <grub/archelp.h>
+
+#include <grub/file.h>
+#include <grub/mm.h>
+#include <grub/dl.h>
+#include <grub/i18n.h>
+#include <grub/cbfs_core.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+
+struct grub_archelp_data
+{
+ grub_disk_t disk;
+ grub_off_t hofs, next_hofs;
+ grub_off_t dofs;
+ grub_off_t size;
+ grub_off_t cbfs_start;
+ grub_off_t cbfs_end;
+ grub_off_t cbfs_align;
+};
+
+static grub_err_t
+grub_cbfs_find_file (struct grub_archelp_data *data, char **name,
+ grub_int32_t *mtime,
+ grub_uint32_t *mode)
+{
+ grub_size_t offset;
+ for (;;
+ data->dofs = data->hofs + offset,
+ data->next_hofs = ALIGN_UP (data->dofs + data->size, data->cbfs_align))
+ {
+ struct cbfs_file hd;
+ grub_size_t namesize;
+
+ data->hofs = data->next_hofs;
+
+ if (data->hofs >= data->cbfs_end)
+ {
+ *mode = GRUB_ARCHELP_ATTR_END;
+ return GRUB_ERR_NONE;
+ }
+
+ if (grub_disk_read (data->disk, 0, data->hofs, sizeof (hd), &hd))
+ return grub_errno;
+
+ if (grub_memcmp (hd.magic, CBFS_FILE_MAGIC, sizeof (hd.magic)) != 0)
+ {
+ *mode = GRUB_ARCHELP_ATTR_END;
+ return GRUB_ERR_NONE;
+ }
+ data->size = grub_be_to_cpu32 (hd.len);
+ (void) mtime;
+ offset = grub_be_to_cpu32 (hd.offset);
+
+ if (mode)
+ *mode = GRUB_ARCHELP_ATTR_FILE | GRUB_ARCHELP_ATTR_NOTIME;
+
+ namesize = offset;
+ if (namesize >= sizeof (hd))
+ namesize -= sizeof (hd);
+ if (namesize == 0)
+ continue;
+ *name = grub_malloc (namesize + 1);
+ if (*name == NULL)
+ return grub_errno;
+
+ if (grub_disk_read (data->disk, 0, data->hofs + sizeof (hd),
+ namesize, *name))
+ {
+ grub_free (*name);
+ return grub_errno;
+ }
+
+ if ((*name)[0] == '\0')
+ {
+ grub_free (*name);
+ *name = NULL;
+ continue;
+ }
+
+ (*name)[namesize] = 0;
+
+ data->dofs = data->hofs + offset;
+ data->next_hofs = ALIGN_UP (data->dofs + data->size, data->cbfs_align);
+ return GRUB_ERR_NONE;
+ }
+}
+
+static void
+grub_cbfs_rewind (struct grub_archelp_data *data)
+{
+ data->next_hofs = data->cbfs_start;
+}
+
+static struct grub_archelp_ops arcops =
+ {
+ .find_file = grub_cbfs_find_file,
+ .rewind = grub_cbfs_rewind
+ };
+
+static int
+validate_head (struct cbfs_header *head)
+{
+ return (head->magic == grub_cpu_to_be32_compile_time (CBFS_HEADER_MAGIC)
+ && (head->version
+ == grub_cpu_to_be32_compile_time (CBFS_HEADER_VERSION1)
+ || head->version
+ == grub_cpu_to_be32_compile_time (CBFS_HEADER_VERSION2))
+ && (grub_be_to_cpu32 (head->bootblocksize)
+ < grub_be_to_cpu32 (head->romsize))
+ && (grub_be_to_cpu32 (head->offset)
+ < grub_be_to_cpu32 (head->romsize))
+ && (grub_be_to_cpu32 (head->offset)
+ + grub_be_to_cpu32 (head->bootblocksize)
+ < grub_be_to_cpu32 (head->romsize))
+ && head->align != 0
+ && (head->align & (head->align - 1)) == 0
+ && head->romsize != 0);
+}
+
+static struct grub_archelp_data *
+grub_cbfs_mount (grub_disk_t disk)
+{
+ struct cbfs_file hd;
+ struct grub_archelp_data *data;
+ grub_uint32_t ptr;
+ grub_off_t header_off;
+ struct cbfs_header head;
+
+ if (grub_disk_read (disk, grub_disk_get_size (disk) - 1,
+ GRUB_DISK_SECTOR_SIZE - sizeof (ptr),
+ sizeof (ptr), &ptr))
+ goto fail;
+
+ ptr = grub_cpu_to_le32 (ptr);
+ header_off = (grub_disk_get_size (disk) << GRUB_DISK_SECTOR_BITS)
+ + (grub_int32_t) ptr;
+
+ if (grub_disk_read (disk, 0, header_off,
+ sizeof (head), &head))
+ goto fail;
+
+ if (!validate_head (&head))
+ goto fail;
+
+ data = (struct grub_archelp_data *) grub_zalloc (sizeof (*data));
+ if (!data)
+ goto fail;
+
+ data->cbfs_start = (grub_disk_get_size (disk) << GRUB_DISK_SECTOR_BITS)
+ - (grub_be_to_cpu32 (head.romsize) - grub_be_to_cpu32 (head.offset));
+ data->cbfs_end = (grub_disk_get_size (disk) << GRUB_DISK_SECTOR_BITS)
+ - grub_be_to_cpu32 (head.bootblocksize);
+ data->cbfs_align = grub_be_to_cpu32 (head.align);
+
+ if (data->cbfs_start >= (grub_disk_get_size (disk) << GRUB_DISK_SECTOR_BITS))
+ goto fail;
+ if (data->cbfs_end > (grub_disk_get_size (disk) << GRUB_DISK_SECTOR_BITS))
+ data->cbfs_end = (grub_disk_get_size (disk) << GRUB_DISK_SECTOR_BITS);
+
+ data->next_hofs = data->cbfs_start;
+
+ if (grub_disk_read (disk, 0, data->cbfs_start, sizeof (hd), &hd))
+ goto fail;
+
+ if (grub_memcmp (hd.magic, CBFS_FILE_MAGIC, sizeof (CBFS_FILE_MAGIC) - 1))
+ goto fail;
+
+ data->disk = disk;
+
+ return data;
+
+fail:
+ grub_error (GRUB_ERR_BAD_FS, "not a cbfs filesystem");
+ return 0;
+}
+
+static grub_err_t
+grub_cbfs_dir (grub_device_t device, const char *path_in,
+ grub_fs_dir_hook_t hook, void *hook_data)
+{
+ struct grub_archelp_data *data;
+ grub_err_t err;
+
+ data = grub_cbfs_mount (device->disk);
+ if (!data)
+ return grub_errno;
+
+ err = grub_archelp_dir (data, &arcops,
+ path_in, hook, hook_data);
+
+ grub_free (data);
+
+ return err;
+}
+
+static grub_err_t
+grub_cbfs_open (grub_file_t file, const char *name_in)
+{
+ struct grub_archelp_data *data;
+ grub_err_t err;
+
+ data = grub_cbfs_mount (file->device->disk);
+ if (!data)
+ return grub_errno;
+
+ err = grub_archelp_open (data, &arcops, name_in);
+ if (err)
+ {
+ grub_free (data);
+ }
+ else
+ {
+ file->data = data;
+ file->size = data->size;
+ }
+ return err;
+}
+
+static grub_ssize_t
+grub_cbfs_read (grub_file_t file, char *buf, grub_size_t len)
+{
+ struct grub_archelp_data *data;
+
+ data = file->data;
+ return (grub_disk_read (data->disk, 0, data->dofs + file->offset,
+ len, buf)) ? -1 : (grub_ssize_t) len;
+}
+
+static grub_err_t
+grub_cbfs_close (grub_file_t file)
+{
+ struct grub_archelp_data *data;
+
+ data = file->data;
+ grub_free (data);
+
+ return grub_errno;
+}
+
+#if (defined (__i386__) || defined (__x86_64__)) && !defined (GRUB_UTIL)
+
+static char *cbfsdisk_addr;
+static grub_off_t cbfsdisk_size = 0;
+
+static int
+grub_cbfsdisk_iterate (grub_disk_dev_iterate_hook_t hook, void *hook_data,
+ grub_disk_pull_t pull)
+{
+ if (pull != GRUB_DISK_PULL_NONE)
+ return 0;
+
+ return hook ("cbfsdisk", hook_data);
+}
+
+static grub_err_t
+grub_cbfsdisk_open (const char *name, grub_disk_t disk)
+{
+ if (grub_strcmp (name, "cbfsdisk"))
+ return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "not a cbfsdisk");
+
+ disk->total_sectors = cbfsdisk_size / GRUB_DISK_SECTOR_SIZE;
+ disk->id = (unsigned long) "cbfs";
+
+ return GRUB_ERR_NONE;
+}
+
+static void
+grub_cbfsdisk_close (grub_disk_t disk __attribute((unused)))
+{
+}
+
+static grub_err_t
+grub_cbfsdisk_read (grub_disk_t disk __attribute((unused)),
+ grub_disk_addr_t sector,
+ grub_size_t size, char *buf)
+{
+ grub_memcpy (buf, cbfsdisk_addr + (sector << GRUB_DISK_SECTOR_BITS),
+ size << GRUB_DISK_SECTOR_BITS);
+ return 0;
+}
+
+static grub_err_t
+grub_cbfsdisk_write (grub_disk_t disk __attribute__ ((unused)),
+ grub_disk_addr_t sector __attribute__ ((unused)),
+ grub_size_t size __attribute__ ((unused)),
+ const char *buf __attribute__ ((unused)))
+{
+ return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
+ "rom flashing isn't implemented yet");
+}
+
+static struct grub_disk_dev grub_cbfsdisk_dev =
+ {
+ .name = "cbfsdisk",
+ .id = GRUB_DISK_DEVICE_CBFSDISK_ID,
+ .iterate = grub_cbfsdisk_iterate,
+ .open = grub_cbfsdisk_open,
+ .close = grub_cbfsdisk_close,
+ .read = grub_cbfsdisk_read,
+ .write = grub_cbfsdisk_write,
+ .next = 0
+ };
+
+static void
+init_cbfsdisk (void)
+{
+ grub_uint32_t ptr;
+ struct cbfs_header *head;
+
+ ptr = *(grub_uint32_t *) 0xfffffffc;
+ head = (struct cbfs_header *) ptr;
+
+ if (!validate_head (head))
+ return;
+
+ cbfsdisk_size = ALIGN_UP (grub_be_to_cpu32 (head->romsize),
+ GRUB_DISK_SECTOR_SIZE);
+ cbfsdisk_addr = (void *) (grub_addr_t) (0x100000000ULL - cbfsdisk_size);
+
+ grub_disk_dev_register (&grub_cbfsdisk_dev);
+}
+
+static void
+fini_cbfsdisk (void)
+{
+ if (! cbfsdisk_size)
+ return;
+ grub_disk_dev_unregister (&grub_cbfsdisk_dev);
+}
+
+#endif
+
+static struct grub_fs grub_cbfs_fs = {
+ .name = "cbfs",
+ .dir = grub_cbfs_dir,
+ .open = grub_cbfs_open,
+ .read = grub_cbfs_read,
+ .close = grub_cbfs_close,
+#ifdef GRUB_UTIL
+ .reserved_first_sector = 0,
+ .blocklist_install = 0,
+#endif
+};
+
+GRUB_MOD_INIT (cbfs)
+{
+#if (defined (__i386__) || defined (__x86_64__)) && !defined (GRUB_UTIL)
+ init_cbfsdisk ();
+#endif
+ grub_fs_register (&grub_cbfs_fs);
+}
+
+GRUB_MOD_FINI (cbfs)
+{
+ grub_fs_unregister (&grub_cbfs_fs);
+#if (defined (__i386__) || defined (__x86_64__)) && !defined (GRUB_UTIL)
+ fini_cbfsdisk ();
+#endif
+}
GRUB_MOD_INIT (cpio)
{
grub_fs_register (&grub_cpio_fs);
- my_mod = mod;
}
GRUB_MOD_FINI (cpio)
GRUB_MOD_INIT (cpio_be)
{
grub_fs_register (&grub_cpio_fs);
- my_mod = mod;
}
GRUB_MOD_FINI (cpio_be)
#include <grub/disk.h>
#include <grub/dl.h>
#include <grub/i18n.h>
+#include <grub/archelp.h>
GRUB_MOD_LICENSE ("GPLv3+");
-#define ATTR_TYPE 0160000
-#define ATTR_FILE 0100000
-#define ATTR_DIR 0040000
-#define ATTR_LNK 0120000
-
-struct grub_cpio_data
+struct grub_archelp_data
{
grub_disk_t disk;
grub_off_t hofs;
+ grub_off_t next_hofs;
grub_off_t dofs;
grub_off_t size;
-#ifdef MODE_USTAR
- char *linkname;
- grub_size_t linkname_alloc;
-#endif
};
-static grub_dl_t my_mod;
-
-static inline void
-canonicalize (char *name)
-{
- char *iptr, *optr;
- for (iptr = name, optr = name; *iptr; )
- {
- while (*iptr == '/')
- iptr++;
- if (iptr[0] == '.' && (iptr[1] == '/' || iptr[1] == 0))
- {
- iptr += 2;
- continue;
- }
- if (iptr[0] == '.' && iptr[1] == '.' && (iptr[2] == '/' || iptr[2] == 0))
- {
- iptr += 3;
- if (optr == name)
- continue;
- for (optr -= 2; optr >= name && *optr != '/'; optr--);
- optr++;
- continue;
- }
- while (*iptr && *iptr != '/')
- *optr++ = *iptr++;
- if (*iptr)
- *optr++ = *iptr++;
- }
- *optr = 0;
-}
-
static grub_err_t
-grub_cpio_find_file (struct grub_cpio_data *data, char **name,
- grub_int32_t *mtime, grub_disk_addr_t *ofs,
- grub_uint32_t *mode)
+grub_cpio_find_file (struct grub_archelp_data *data, char **name,
+ grub_int32_t *mtime, grub_uint32_t *mode)
{
-#ifndef MODE_USTAR
struct head hd;
grub_size_t namesize;
grub_uint32_t modeval;
+ data->hofs = data->next_hofs;
+
if (grub_disk_read (data->disk, 0, data->hofs, sizeof (hd), &hd))
return grub_errno;
if (data->size == 0 && modeval == 0 && namesize == 11
&& grub_memcmp(*name, "TRAILER!!!", 11) == 0)
{
- *ofs = 0;
+ *mode = GRUB_ARCHELP_ATTR_END;
grub_free (*name);
return GRUB_ERR_NONE;
}
- canonicalize (*name);
-
data->dofs = data->hofs + ALIGN_CPIO (sizeof (hd) + namesize);
- *ofs = data->dofs + ALIGN_CPIO (data->size);
-#else
- struct head hd;
- int reread = 0, have_longname = 0, have_longlink = 0;
+ data->next_hofs = data->dofs + ALIGN_CPIO (data->size);
+ return GRUB_ERR_NONE;
+}
+
+static char *
+grub_cpio_get_link_target (struct grub_archelp_data *data)
+{
+ char *ret;
+ grub_err_t err;
+
+ if (data->size == 0)
+ return grub_strdup ("");
+ ret = grub_malloc (data->size + 1);
+ if (!ret)
+ return NULL;
- for (reread = 0; reread < 3; reread++)
+ err = grub_disk_read (data->disk, 0, data->dofs, data->size,
+ ret);
+ if (err)
{
- if (grub_disk_read (data->disk, 0, data->hofs, sizeof (hd), &hd))
- return grub_errno;
-
- if (!hd.name[0] && !hd.prefix[0])
- {
- *ofs = 0;
- return GRUB_ERR_NONE;
- }
-
- if (grub_memcmp (hd.magic, MAGIC, sizeof (MAGIC) - 1))
- return grub_error (GRUB_ERR_BAD_FS, "invalid tar archive");
-
- if (hd.typeflag == 'L')
- {
- grub_err_t err;
- grub_size_t namesize = read_number (hd.size, sizeof (hd.size));
- *name = grub_malloc (namesize + 1);
- if (*name == NULL)
- return grub_errno;
- err = grub_disk_read (data->disk, 0,
- data->hofs + GRUB_DISK_SECTOR_SIZE, namesize,
- *name);
- (*name)[namesize] = 0;
- if (err)
- return err;
- data->hofs += GRUB_DISK_SECTOR_SIZE
- + ((namesize + GRUB_DISK_SECTOR_SIZE - 1) &
- ~(GRUB_DISK_SECTOR_SIZE - 1));
- have_longname = 1;
- continue;
- }
-
- if (hd.typeflag == 'K')
- {
- grub_err_t err;
- grub_size_t linksize = read_number (hd.size, sizeof (hd.size));
- if (data->linkname_alloc < linksize + 1)
- {
- char *n;
- n = grub_malloc (2 * (linksize + 1));
- if (!n)
- return grub_errno;
- grub_free (data->linkname);
- data->linkname = n;
- data->linkname_alloc = 2 * (linksize + 1);
- }
-
- err = grub_disk_read (data->disk, 0,
- data->hofs + GRUB_DISK_SECTOR_SIZE, linksize,
- data->linkname);
- if (err)
- return err;
- data->linkname[linksize] = 0;
- data->hofs += GRUB_DISK_SECTOR_SIZE
- + ((linksize + GRUB_DISK_SECTOR_SIZE - 1) &
- ~(GRUB_DISK_SECTOR_SIZE - 1));
- have_longlink = 1;
- continue;
- }
-
- if (!have_longname)
- {
- grub_size_t extra_size = 0;
-
- while (extra_size < sizeof (hd.prefix)
- && hd.prefix[extra_size])
- extra_size++;
- *name = grub_malloc (sizeof (hd.name) + extra_size + 2);
- if (*name == NULL)
- return grub_errno;
- if (hd.prefix[0])
- {
- grub_memcpy (*name, hd.prefix, extra_size);
- (*name)[extra_size++] = '/';
- }
- grub_memcpy (*name + extra_size, hd.name, sizeof (hd.name));
- (*name)[extra_size + sizeof (hd.name)] = 0;
- }
-
- data->size = read_number (hd.size, sizeof (hd.size));
- data->dofs = data->hofs + GRUB_DISK_SECTOR_SIZE;
- *ofs = data->dofs + ((data->size + GRUB_DISK_SECTOR_SIZE - 1) &
- ~(GRUB_DISK_SECTOR_SIZE - 1));
- if (mtime)
- *mtime = read_number (hd.mtime, sizeof (hd.mtime));
- if (mode)
- {
- *mode = read_number (hd.mode, sizeof (hd.mode));
- switch (hd.typeflag)
- {
- /* Hardlink. */
- case '1':
- /* Symlink. */
- case '2':
- *mode |= ATTR_LNK;
- break;
- case '0':
- *mode |= ATTR_FILE;
- break;
- case '5':
- *mode |= ATTR_DIR;
- break;
- }
- }
- if (!have_longlink)
- {
- if (data->linkname_alloc < 101)
- {
- char *n;
- n = grub_malloc (101);
- if (!n)
- return grub_errno;
- grub_free (data->linkname);
- data->linkname = n;
- data->linkname_alloc = 101;
- }
- grub_memcpy (data->linkname, hd.linkname, sizeof (hd.linkname));
- data->linkname[100] = 0;
- }
-
- canonicalize (*name);
- return GRUB_ERR_NONE;
+ grub_free (ret);
+ return NULL;
}
-#endif
- return GRUB_ERR_NONE;
+ ret[data->size] = '\0';
+ return ret;
}
-static struct grub_cpio_data *
+static void
+grub_cpio_rewind (struct grub_archelp_data *data)
+{
+ data->next_hofs = 0;
+}
+
+static struct grub_archelp_ops arcops =
+ {
+ .find_file = grub_cpio_find_file,
+ .get_link_target = grub_cpio_get_link_target,
+ .rewind = grub_cpio_rewind
+ };
+
+static struct grub_archelp_data *
grub_cpio_mount (grub_disk_t disk)
{
struct head hd;
- struct grub_cpio_data *data;
+ struct grub_archelp_data *data;
if (grub_disk_read (disk, 0, 0, sizeof (hd), &hd))
goto fail;
)
goto fail;
- data = (struct grub_cpio_data *) grub_zalloc (sizeof (*data));
+ data = (struct grub_archelp_data *) grub_zalloc (sizeof (*data));
if (!data)
goto fail;
return 0;
}
-static grub_err_t
-handle_symlink (struct grub_cpio_data *data,
- const char *fn, char **name,
- grub_uint32_t mode, int *restart)
-{
- grub_size_t flen;
- char *target;
-#ifndef MODE_USTAR
- grub_err_t err;
-#endif
- char *ptr;
- char *lastslash;
- grub_size_t prefixlen;
- char *rest;
- grub_size_t size;
-
- *restart = 0;
-
- if ((mode & ATTR_TYPE) != ATTR_LNK)
- return GRUB_ERR_NONE;
- flen = grub_strlen (fn);
- if (grub_memcmp (*name, fn, flen) != 0
- || ((*name)[flen] != 0 && (*name)[flen] != '/'))
- return GRUB_ERR_NONE;
- rest = *name + flen;
- lastslash = rest;
- if (*rest)
- rest++;
- while (lastslash >= *name && *lastslash != '/')
- lastslash--;
- if (lastslash >= *name)
- prefixlen = lastslash - *name;
- else
- prefixlen = 0;
-
- if (prefixlen)
- prefixlen++;
-
-#ifdef MODE_USTAR
- size = grub_strlen (data->linkname);
-#else
- size = data->size;
-#endif
- if (size == 0)
- return GRUB_ERR_NONE;
- target = grub_malloc (size + grub_strlen (*name) + 2);
- if (!target)
- return grub_errno;
-
-#ifdef MODE_USTAR
- grub_memcpy (target + prefixlen, data->linkname, size);
-#else
- err = grub_disk_read (data->disk, 0, data->dofs, data->size,
- target + prefixlen);
- if (err)
- return err;
-#endif
- if (target[prefixlen] == '/')
- {
- grub_memmove (target, target + prefixlen, size);
- ptr = target + size;
- ptr = grub_stpcpy (ptr, rest);
- *ptr = 0;
- grub_dprintf ("cpio", "symlink redirected %s to %s\n",
- *name, target);
- grub_free (*name);
-
- canonicalize (target);
- *name = target;
- *restart = 1;
- return GRUB_ERR_NONE;
- }
- if (prefixlen)
- {
- grub_memcpy (target, *name, prefixlen);
- target[prefixlen-1] = '/';
- }
- ptr = target + prefixlen + size;
- ptr = grub_stpcpy (ptr, rest);
- *ptr = 0;
- grub_dprintf ("cpio", "symlink redirected %s to %s\n",
- *name, target);
- grub_free (*name);
- canonicalize (target);
- *name = target;
- *restart = 1;
- return GRUB_ERR_NONE;
-}
-
static grub_err_t
grub_cpio_dir (grub_device_t device, const char *path_in,
grub_fs_dir_hook_t hook, void *hook_data)
{
- struct grub_cpio_data *data;
- grub_disk_addr_t ofs;
- char *prev, *name, *path, *ptr;
- grub_size_t len;
- int symlinknest = 0;
-
- path = grub_strdup (path_in + 1);
- if (!path)
- return grub_errno;
- canonicalize (path);
- for (ptr = path + grub_strlen (path) - 1; ptr >= path && *ptr == '/'; ptr--)
- *ptr = 0;
-
- grub_dl_ref (my_mod);
-
- prev = 0;
+ struct grub_archelp_data *data;
+ grub_err_t err;
data = grub_cpio_mount (device->disk);
if (!data)
- {
- grub_free (path);
- return grub_errno;
- }
-
- len = grub_strlen (path);
- data->hofs = 0;
- while (1)
- {
- grub_int32_t mtime;
- grub_uint32_t mode;
- grub_err_t err;
-
- if (grub_cpio_find_file (data, &name, &mtime, &ofs, &mode))
- goto fail;
-
- if (!ofs)
- break;
-
- if (grub_memcmp (path, name, len) == 0
- && (name[len] == 0 || name[len] == '/' || len == 0))
- {
- char *p, *n;
-
- n = name + len;
- while (*n == '/')
- n++;
-
- p = grub_strchr (n, '/');
- if (p)
- *p = 0;
-
- if (((!prev) || (grub_strcmp (prev, name) != 0)) && *n != 0)
- {
- struct grub_dirhook_info info;
- grub_memset (&info, 0, sizeof (info));
- info.dir = (p != NULL) || ((mode & ATTR_TYPE) == ATTR_DIR);
- info.mtime = mtime;
- info.mtimeset = 1;
-
- if (hook (n, &info, hook_data))
- {
- grub_free (name);
- goto fail;
- }
- grub_free (prev);
- prev = name;
- }
- else
- {
- int restart = 0;
- err = handle_symlink (data, name, &path, mode, &restart);
- grub_free (name);
- if (err)
- goto fail;
- if (restart)
- {
- len = grub_strlen (path);
- if (++symlinknest == 8)
- {
- grub_error (GRUB_ERR_SYMLINK_LOOP,
- N_("too deep nesting of symlinks"));
- goto fail;
- }
- ofs = 0;
- }
- }
- }
- else
- grub_free (name);
- data->hofs = ofs;
- }
+ return grub_errno;
-fail:
+ err = grub_archelp_dir (data, &arcops,
+ path_in, hook, hook_data);
- grub_free (path);
- grub_free (prev);
-#ifdef MODE_USTAR
- grub_free (data->linkname);
-#endif
grub_free (data);
- grub_dl_unref (my_mod);
-
- return grub_errno;
+ return err;
}
static grub_err_t
grub_cpio_open (grub_file_t file, const char *name_in)
{
- struct grub_cpio_data *data;
- grub_disk_addr_t ofs;
- char *fn;
- char *name = grub_strdup (name_in + 1);
- int symlinknest = 0;
-
- if (!name)
- return grub_errno;
-
- canonicalize (name);
-
- grub_dl_ref (my_mod);
+ struct grub_archelp_data *data;
+ grub_err_t err;
data = grub_cpio_mount (file->device->disk);
if (!data)
+ return grub_errno;
+
+ err = grub_archelp_open (data, &arcops, name_in);
+ if (err)
{
- grub_free (name);
- return grub_errno;
+ grub_free (data);
}
-
- data->hofs = 0;
- while (1)
+ else
{
- grub_uint32_t mode;
- int restart;
-
- if (grub_cpio_find_file (data, &fn, NULL, &ofs, &mode))
- goto fail;
-
- if (!ofs)
- {
- grub_error (GRUB_ERR_FILE_NOT_FOUND, N_("file `%s' not found"), name_in);
- break;
- }
-
- if (handle_symlink (data, fn, &name, mode, &restart))
- {
- grub_free (fn);
- goto fail;
- }
-
- if (restart)
- {
- ofs = 0;
- if (++symlinknest == 8)
- {
- grub_error (GRUB_ERR_SYMLINK_LOOP,
- N_("too deep nesting of symlinks"));
- goto fail;
- }
- goto no_match;
- }
-
- if (grub_strcmp (name, fn) != 0)
- goto no_match;
-
file->data = data;
file->size = data->size;
- grub_free (fn);
- grub_free (name);
-
- return GRUB_ERR_NONE;
-
- no_match:
-
- grub_free (fn);
- data->hofs = ofs;
}
-
-fail:
-#ifdef MODE_USTAR
- grub_free (data->linkname);
-#endif
- grub_free (data);
- grub_free (name);
-
- grub_dl_unref (my_mod);
-
- return grub_errno;
+ return err;
}
static grub_ssize_t
grub_cpio_read (grub_file_t file, char *buf, grub_size_t len)
{
- struct grub_cpio_data *data;
+ struct grub_archelp_data *data;
data = file->data;
return (grub_disk_read (data->disk, 0, data->dofs + file->offset,
static grub_err_t
grub_cpio_close (grub_file_t file)
{
- struct grub_cpio_data *data;
+ struct grub_archelp_data *data;
data = file->data;
-#ifdef MODE_USTAR
- grub_free (data->linkname);
-#endif
grub_free (data);
- grub_dl_unref (my_mod);
-
return grub_errno;
}
GRUB_MOD_INIT (newc)
{
grub_fs_register (&grub_cpio_fs);
- my_mod = mod;
}
GRUB_MOD_FINI (newc)
#include <grub/misc.h>
#define ALIGN_CPIO(x) x
+
#define MAGIC "070707"
struct head
{
GRUB_MOD_INIT (odc)
{
grub_fs_register (&grub_cpio_fs);
- my_mod = mod;
}
GRUB_MOD_FINI (odc)
*/
#include <grub/misc.h>
+#include <grub/disk.h>
+#include <grub/archelp.h>
-#define MODE_USTAR 1
+#include <grub/file.h>
+#include <grub/mm.h>
+#include <grub/dl.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
/* tar support */
#define MAGIC "ustar"
return ret;
}
-#define FSNAME "tarfs"
+struct grub_archelp_data
+{
+ grub_disk_t disk;
+ grub_off_t hofs, next_hofs;
+ grub_off_t dofs;
+ grub_off_t size;
+ char *linkname;
+ grub_size_t linkname_alloc;
+};
+
+static grub_err_t
+grub_cpio_find_file (struct grub_archelp_data *data, char **name,
+ grub_int32_t *mtime,
+ grub_uint32_t *mode)
+{
+ struct head hd;
+ int reread = 0, have_longname = 0, have_longlink = 0;
+
+ data->hofs = data->next_hofs;
+
+ for (reread = 0; reread < 3; reread++)
+ {
+ if (grub_disk_read (data->disk, 0, data->hofs, sizeof (hd), &hd))
+ return grub_errno;
+
+ if (!hd.name[0] && !hd.prefix[0])
+ {
+ *mode = GRUB_ARCHELP_ATTR_END;
+ return GRUB_ERR_NONE;
+ }
+
+ if (grub_memcmp (hd.magic, MAGIC, sizeof (MAGIC) - 1))
+ return grub_error (GRUB_ERR_BAD_FS, "invalid tar archive");
+
+ if (hd.typeflag == 'L')
+ {
+ grub_err_t err;
+ grub_size_t namesize = read_number (hd.size, sizeof (hd.size));
+ *name = grub_malloc (namesize + 1);
+ if (*name == NULL)
+ return grub_errno;
+ err = grub_disk_read (data->disk, 0,
+ data->hofs + GRUB_DISK_SECTOR_SIZE, namesize,
+ *name);
+ (*name)[namesize] = 0;
+ if (err)
+ return err;
+ data->hofs += GRUB_DISK_SECTOR_SIZE
+ + ((namesize + GRUB_DISK_SECTOR_SIZE - 1) &
+ ~(GRUB_DISK_SECTOR_SIZE - 1));
+ have_longname = 1;
+ continue;
+ }
+
+ if (hd.typeflag == 'K')
+ {
+ grub_err_t err;
+ grub_size_t linksize = read_number (hd.size, sizeof (hd.size));
+ if (data->linkname_alloc < linksize + 1)
+ {
+ char *n;
+ n = grub_malloc (2 * (linksize + 1));
+ if (!n)
+ return grub_errno;
+ grub_free (data->linkname);
+ data->linkname = n;
+ data->linkname_alloc = 2 * (linksize + 1);
+ }
+
+ err = grub_disk_read (data->disk, 0,
+ data->hofs + GRUB_DISK_SECTOR_SIZE, linksize,
+ data->linkname);
+ if (err)
+ return err;
+ data->linkname[linksize] = 0;
+ data->hofs += GRUB_DISK_SECTOR_SIZE
+ + ((linksize + GRUB_DISK_SECTOR_SIZE - 1) &
+ ~(GRUB_DISK_SECTOR_SIZE - 1));
+ have_longlink = 1;
+ continue;
+ }
+
+ if (!have_longname)
+ {
+ grub_size_t extra_size = 0;
+
+ while (extra_size < sizeof (hd.prefix)
+ && hd.prefix[extra_size])
+ extra_size++;
+ *name = grub_malloc (sizeof (hd.name) + extra_size + 2);
+ if (*name == NULL)
+ return grub_errno;
+ if (hd.prefix[0])
+ {
+ grub_memcpy (*name, hd.prefix, extra_size);
+ (*name)[extra_size++] = '/';
+ }
+ grub_memcpy (*name + extra_size, hd.name, sizeof (hd.name));
+ (*name)[extra_size + sizeof (hd.name)] = 0;
+ }
+
+ data->size = read_number (hd.size, sizeof (hd.size));
+ data->dofs = data->hofs + GRUB_DISK_SECTOR_SIZE;
+ data->next_hofs = data->dofs + ((data->size + GRUB_DISK_SECTOR_SIZE - 1) &
+ ~(GRUB_DISK_SECTOR_SIZE - 1));
+ if (mtime)
+ *mtime = read_number (hd.mtime, sizeof (hd.mtime));
+ if (mode)
+ {
+ *mode = read_number (hd.mode, sizeof (hd.mode));
+ switch (hd.typeflag)
+ {
+ /* Hardlink. */
+ case '1':
+ /* Symlink. */
+ case '2':
+ *mode |= GRUB_ARCHELP_ATTR_LNK;
+ break;
+ case '0':
+ *mode |= GRUB_ARCHELP_ATTR_FILE;
+ break;
+ case '5':
+ *mode |= GRUB_ARCHELP_ATTR_DIR;
+ break;
+ }
+ }
+ if (!have_longlink)
+ {
+ if (data->linkname_alloc < 101)
+ {
+ char *n;
+ n = grub_malloc (101);
+ if (!n)
+ return grub_errno;
+ grub_free (data->linkname);
+ data->linkname = n;
+ data->linkname_alloc = 101;
+ }
+ grub_memcpy (data->linkname, hd.linkname, sizeof (hd.linkname));
+ data->linkname[100] = 0;
+ }
+ return GRUB_ERR_NONE;
+ }
+ return GRUB_ERR_NONE;
+}
+
+static char *
+grub_cpio_get_link_target (struct grub_archelp_data *data)
+{
+ return grub_strdup (data->linkname);
+}
+
+static void
+grub_cpio_rewind (struct grub_archelp_data *data)
+{
+ data->next_hofs = 0;
+}
+
+static struct grub_archelp_ops arcops =
+ {
+ .find_file = grub_cpio_find_file,
+ .get_link_target = grub_cpio_get_link_target,
+ .rewind = grub_cpio_rewind
+ };
+
+static struct grub_archelp_data *
+grub_cpio_mount (grub_disk_t disk)
+{
+ struct head hd;
+ struct grub_archelp_data *data;
+
+ if (grub_disk_read (disk, 0, 0, sizeof (hd), &hd))
+ goto fail;
+
+ if (grub_memcmp (hd.magic, MAGIC, sizeof (MAGIC) - 1))
+ goto fail;
+
+ data = (struct grub_archelp_data *) grub_zalloc (sizeof (*data));
+ if (!data)
+ goto fail;
+
+ data->disk = disk;
+
+ return data;
+
+fail:
+ grub_error (GRUB_ERR_BAD_FS, "not a tarfs filesystem");
+ return 0;
+}
+
+static grub_err_t
+grub_cpio_dir (grub_device_t device, const char *path_in,
+ grub_fs_dir_hook_t hook, void *hook_data)
+{
+ struct grub_archelp_data *data;
+ grub_err_t err;
+
+ data = grub_cpio_mount (device->disk);
+ if (!data)
+ return grub_errno;
+
+ err = grub_archelp_dir (data, &arcops,
+ path_in, hook, hook_data);
+
+ grub_free (data->linkname);
+ grub_free (data);
+
+ return err;
+}
+
+static grub_err_t
+grub_cpio_open (grub_file_t file, const char *name_in)
+{
+ struct grub_archelp_data *data;
+ grub_err_t err;
+
+ data = grub_cpio_mount (file->device->disk);
+ if (!data)
+ return grub_errno;
+
+ err = grub_archelp_open (data, &arcops, name_in);
+ if (err)
+ {
+ grub_free (data->linkname);
+ grub_free (data);
+ }
+ else
+ {
+ file->data = data;
+ file->size = data->size;
+ }
+ return err;
+}
+
+static grub_ssize_t
+grub_cpio_read (grub_file_t file, char *buf, grub_size_t len)
+{
+ struct grub_archelp_data *data;
+
+ data = file->data;
+ return (grub_disk_read (data->disk, 0, data->dofs + file->offset,
+ len, buf)) ? -1 : (grub_ssize_t) len;
+}
+
+static grub_err_t
+grub_cpio_close (grub_file_t file)
+{
+ struct grub_archelp_data *data;
+
+ data = file->data;
+ grub_free (data->linkname);
+ grub_free (data);
+
+ return grub_errno;
+}
-#include "cpio_common.c"
+static struct grub_fs grub_cpio_fs = {
+ .name = "tarfs",
+ .dir = grub_cpio_dir,
+ .open = grub_cpio_open,
+ .read = grub_cpio_read,
+ .close = grub_cpio_close,
+#ifdef GRUB_UTIL
+ .reserved_first_sector = 0,
+ .blocklist_install = 0,
+#endif
+};
GRUB_MOD_INIT (tar)
{
grub_fs_register (&grub_cpio_fs);
- my_mod = mod;
}
GRUB_MOD_FINI (tar)
--- /dev/null
+/* archelp.h -- Archive helper functions */
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 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/>.
+ */
+
+#ifndef GRUB_ARCHELP_HEADER
+#define GRUB_ARCHELP_HEADER 1
+
+#include <grub/fs.h>
+#include <grub/file.h>
+
+typedef enum
+ {
+ GRUB_ARCHELP_ATTR_TYPE = 0160000,
+ GRUB_ARCHELP_ATTR_FILE = 0100000,
+ GRUB_ARCHELP_ATTR_DIR = 0040000,
+ GRUB_ARCHELP_ATTR_LNK = 0120000,
+ GRUB_ARCHELP_ATTR_NOTIME = 0x80000000,
+ GRUB_ARCHELP_ATTR_END = 0xffffffff
+ } grub_archelp_mode_t;
+
+struct grub_archelp_data;
+
+struct grub_archelp_ops
+{
+ grub_err_t
+ (*find_file) (struct grub_archelp_data *data, char **name,
+ grub_int32_t *mtime,
+ grub_archelp_mode_t *mode);
+
+ char *
+ (*get_link_target) (struct grub_archelp_data *data);
+
+ void
+ (*rewind) (struct grub_archelp_data *data);
+};
+
+grub_err_t
+grub_archelp_dir (struct grub_archelp_data *data,
+ struct grub_archelp_ops *ops,
+ const char *path_in,
+ grub_fs_dir_hook_t hook, void *hook_data);
+
+grub_err_t
+grub_archelp_open (struct grub_archelp_data *data,
+ struct grub_archelp_ops *ops,
+ const char *name_in);
+
+#endif
--- /dev/null
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net>
+ * Copyright (C) 2012 Google, Inc.
+ * Copyright (C) 2013 The Chromium OS Authors. All rights reserved.
+ *
+ * This file is dual-licensed. You can choose between:
+ * - The GNU GPL, version 2, as published by the Free Software Foundation
+ * - The revised BSD license (without advertising clause)
+ *
+ * ---------------------------------------------------------------------------
+ * This program 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; version 2 of the License.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
+ * ---------------------------------------------------------------------------
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ---------------------------------------------------------------------------
+ */
+
+#ifndef _CBFS_CORE_H_
+#define _CBFS_CORE_H_
+
+#include <grub/types.h>
+
+/** These are standard values for the known compression
+ alogrithms that coreboot knows about for stages and
+ payloads. Of course, other CBFS users can use whatever
+ values they want, as long as they understand them. */
+
+#define CBFS_COMPRESS_NONE 0
+#define CBFS_COMPRESS_LZMA 1
+
+/** These are standard component types for well known
+ components (i.e - those that coreboot needs to consume.
+ Users are welcome to use any other value for their
+ components */
+
+#define CBFS_TYPE_STAGE 0x10
+#define CBFS_TYPE_PAYLOAD 0x20
+#define CBFS_TYPE_OPTIONROM 0x30
+#define CBFS_TYPE_BOOTSPLASH 0x40
+#define CBFS_TYPE_RAW 0x50
+#define CBFS_TYPE_VSA 0x51
+#define CBFS_TYPE_MBI 0x52
+#define CBFS_TYPE_MICROCODE 0x53
+#define CBFS_COMPONENT_CMOS_DEFAULT 0xaa
+#define CBFS_COMPONENT_CMOS_LAYOUT 0x01aa
+
+#define CBFS_HEADER_MAGIC 0x4F524243
+#define CBFS_HEADER_VERSION1 0x31313131
+#define CBFS_HEADER_VERSION2 0x31313132
+#define CBFS_HEADER_VERSION CBFS_HEADER_VERSION2
+
+#define CBFS_HEADER_INVALID_ADDRESS ((void*)(0xffffffff))
+
+/** this is the master cbfs header - it need to be located somewhere available
+ to bootblock (to load romstage). Where it actually lives is up to coreboot.
+ On x86, a pointer to this header will live at 0xFFFFFFFC.
+ For other platforms, you need to define CONFIG_CBFS_HEADER_ROM_OFFSET */
+
+struct cbfs_header {
+ grub_uint32_t magic;
+ grub_uint32_t version;
+ grub_uint32_t romsize;
+ grub_uint32_t bootblocksize;
+ grub_uint32_t align;
+ grub_uint32_t offset;
+ grub_uint32_t architecture;
+ grub_uint32_t pad[1];
+} __attribute__((packed));
+
+/* "Unknown" refers to CBFS headers version 1,
+ * before the architecture was defined (i.e., x86 only).
+ */
+#define CBFS_ARCHITECTURE_UNKNOWN 0xFFFFFFFF
+#define CBFS_ARCHITECTURE_X86 0x00000001
+#define CBFS_ARCHITECTURE_ARMV7 0x00000010
+
+/** This is a component header - every entry in the CBFS
+ will have this header.
+
+ This is how the component is arranged in the ROM:
+
+ -------------- <- 0
+ component header
+ -------------- <- sizeof(struct component)
+ component name
+ -------------- <- offset
+ data
+ ...
+ -------------- <- offset + len
+*/
+
+#define CBFS_FILE_MAGIC "LARCHIVE"
+
+struct cbfs_file {
+ char magic[8];
+ grub_uint32_t len;
+ grub_uint32_t type;
+ grub_uint32_t checksum;
+ grub_uint32_t offset;
+} __attribute__((packed));
+
+/*** Component sub-headers ***/
+
+/* Following are component sub-headers for the "standard"
+ component types */
+
+/** This is the sub-header for stage components. Stages are
+ loaded by coreboot during the normal boot process */
+
+struct cbfs_stage {
+ grub_uint32_t compression; /** Compression type */
+ grub_uint64_t entry; /** entry point */
+ grub_uint64_t load; /** Where to load in memory */
+ grub_uint32_t len; /** length of data to load */
+ grub_uint32_t memlen; /** total length of object in memory */
+} __attribute__((packed));
+
+/** this is the sub-header for payload components. Payloads
+ are loaded by coreboot at the end of the boot process */
+
+struct cbfs_payload_segment {
+ grub_uint32_t type;
+ grub_uint32_t compression;
+ grub_uint32_t offset;
+ grub_uint64_t load_addr;
+ grub_uint32_t len;
+ grub_uint32_t mem_len;
+} __attribute__((packed));
+
+struct cbfs_payload {
+ struct cbfs_payload_segment segments;
+};
+
+#define PAYLOAD_SEGMENT_CODE 0x45444F43
+#define PAYLOAD_SEGMENT_DATA 0x41544144
+#define PAYLOAD_SEGMENT_BSS 0x20535342
+#define PAYLOAD_SEGMENT_PARAMS 0x41524150
+#define PAYLOAD_SEGMENT_ENTRY 0x52544E45
+
+struct cbfs_optionrom {
+ grub_uint32_t compression;
+ grub_uint32_t len;
+} __attribute__((packed));
+
+#endif
GRUB_DISK_DEVICE_ARCDISK_ID,
GRUB_DISK_DEVICE_HOSTDISK_ID,
GRUB_DISK_DEVICE_PROCFS_ID,
+ GRUB_DISK_DEVICE_CBFSDISK_ID
};
struct grub_disk;
projects / thirdparty / grub.git / commitdiff
