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Remove nested functions from disk and file read hooks. 

* include/grub/disk.h (grub_disk_read_hook_t): New type.
	(struct grub_disk): Add read_hook_data member.
	* include/grub/file.h (struct grub_file): Likewise.
	* include/grub/fshelp.h (grub_fshelp_read_file): Add read_hook_data
	argument.

	Update all callers.
This commit is contained in:
Colin Watson 2013-02-27 17:19:15 +01:00 committed by Vladimir 'phcoder' Serbinenko
parent df6da5a52d
commit 4eb8b75659
29 changed files with 409 additions and 345 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
ChangeLog
View File

@ -1,3 +1,15 @@
2013-02-27 Colin Watson <cjwatson@ubuntu.com>
Remove nested functions from disk and file read hooks.
* include/grub/disk.h (grub_disk_read_hook_t): New type.
(struct grub_disk): Add read_hook_data member.
* include/grub/file.h (struct grub_file): Likewise.
* include/grub/fshelp.h (grub_fshelp_read_file): Add read_hook_data
argument.
Update all callers.
2012-02-27 Andrey Borzenkov <arvidjaar@gmail.com>
* grub-core/partmap/msdos.c (grub_partition_msdos_iterate):

6
config.h.in
View File

@ -5,6 +5,10 @@
#if defined(__PPC__) && !defined(__powerpc__)
#define __powerpc__ 1
#endif
/* Define to 1 to enable disk cache statistics. */
#define DISK_CACHE_STATS @DISK_CACHE_STATS@
#if defined (GRUB_UTIL) || !defined (GRUB_MACHINE)
#include <config-util.h>
#define NESTED_FUNC_ATTR
@ -39,8 +43,6 @@
#define NEED_ENABLE_EXECUTE_STACK @NEED_ENABLE_EXECUTE_STACK@
/* Define to 1 if GCC generates calls to __register_frame_info(). */
#define NEED_REGISTER_FRAME_INFO @NEED_REGISTER_FRAME_INFO@
/* Define to 1 to enable disk cache statistics. */
#define DISK_CACHE_STATS @DISK_CACHE_STATS@
#define GRUB_TARGET_CPU "@GRUB_TARGET_CPU@"
#define GRUB_PLATFORM "@GRUB_PLATFORM@"

112
grub-core/commands/blocklist.c
View File

@ -28,58 +28,71 @@
GRUB_MOD_LICENSE ("GPLv3+");
/* Context for grub_cmd_blocklist. */
struct blocklist_ctx
{
unsigned long start_sector;
unsigned num_sectors;
int num_entries;
grub_disk_addr_t part_start;
};
/* Helper for grub_cmd_blocklist. */
static void
print_blocklist (grub_disk_addr_t sector, unsigned num,
unsigned offset, unsigned length, struct blocklist_ctx *ctx)
{
if (ctx->num_entries++)
grub_printf (",");
grub_printf ("%llu", (unsigned long long) (sector - ctx->part_start));
if (num > 0)
grub_printf ("+%u", num);
if (offset != 0 || length != 0)
grub_printf ("[%u-%u]", offset, offset + length);
}
/* Helper for grub_cmd_blocklist. */
static void
read_blocklist (grub_disk_addr_t sector, unsigned offset, unsigned length,
void *data)
{
struct blocklist_ctx *ctx = data;
if (ctx->num_sectors > 0)
{
if (ctx->start_sector + ctx->num_sectors == sector
&& offset == 0 && length == GRUB_DISK_SECTOR_SIZE)
{
ctx->num_sectors++;
return;
}
print_blocklist (ctx->start_sector, ctx->num_sectors, 0, 0, ctx);
ctx->num_sectors = 0;
}
if (offset == 0 && length == GRUB_DISK_SECTOR_SIZE)
{
ctx->start_sector = sector;
ctx->num_sectors++;
}
else
print_blocklist (sector, 0, offset, length, ctx);
}
static grub_err_t
grub_cmd_blocklist (grub_command_t cmd __attribute__ ((unused)),
int argc, char **args)
{
grub_file_t file;
char buf[GRUB_DISK_SECTOR_SIZE];
unsigned long start_sector = 0;
unsigned num_sectors = 0;
int num_entries = 0;
grub_disk_addr_t part_start = 0;
auto void NESTED_FUNC_ATTR read_blocklist (grub_disk_addr_t sector, unsigned offset,
unsigned length);
auto void NESTED_FUNC_ATTR print_blocklist (grub_disk_addr_t sector, unsigned num,
unsigned offset, unsigned length);
void NESTED_FUNC_ATTR read_blocklist (grub_disk_addr_t sector, unsigned offset,
unsigned length)
{
if (num_sectors > 0)
{
if (start_sector + num_sectors == sector
&& offset == 0 && length == GRUB_DISK_SECTOR_SIZE)
{
num_sectors++;
return;
}
print_blocklist (start_sector, num_sectors, 0, 0);
num_sectors = 0;
}
if (offset == 0 && length == GRUB_DISK_SECTOR_SIZE)
{
start_sector = sector;
num_sectors++;
}
else
print_blocklist (sector, 0, offset, length);
}
void NESTED_FUNC_ATTR print_blocklist (grub_disk_addr_t sector, unsigned num,
unsigned offset, unsigned length)
{
if (num_entries++)
grub_printf (",");
grub_printf ("%llu", (unsigned long long) (sector - part_start));
if (num > 0)
grub_printf ("+%u", num);
if (offset != 0 || length != 0)
grub_printf ("[%u-%u]", offset, offset + length);
}
struct blocklist_ctx ctx = {
.start_sector = 0,
.num_sectors = 0,
.num_entries = 0,
.part_start = 0
};
if (argc < 1)
return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
@ -93,15 +106,16 @@ grub_cmd_blocklist (grub_command_t cmd __attribute__ ((unused)),
return grub_error (GRUB_ERR_BAD_DEVICE,
"this command is available only for disk devices");
part_start = grub_partition_get_start (file->device->disk->partition);
ctx.part_start = grub_partition_get_start (file->device->disk->partition);
file->read_hook = read_blocklist;
file->read_hook_data = &ctx;
while (grub_file_read (file, buf, sizeof (buf)) > 0)
;
if (num_sectors > 0)
print_blocklist (start_sector, num_sectors, 0, 0);
if (ctx.num_sectors > 0)
print_blocklist (ctx.start_sector, ctx.num_sectors, 0, 0, &ctx);
grub_file_close (file);

80
grub-core/commands/loadenv.c
View File

@ -284,44 +284,51 @@ write_blocklists (grub_envblk_t envblk, struct blocklist *blocklists,
return 1;
}
/* Context for grub_cmd_save_env. */
struct grub_cmd_save_env_ctx
{
struct blocklist *head, *tail;
};
/* Store blocklists in a linked list. */
static void
save_env_read_hook (grub_disk_addr_t sector, unsigned offset, unsigned length,
void *data)
{
struct grub_cmd_save_env_ctx *ctx = data;
struct blocklist *block;
if (offset + length > GRUB_DISK_SECTOR_SIZE)
/* Seemingly a bug. */
return;
block = grub_malloc (sizeof (*block));
if (! block)
return;
block->sector = sector;
block->offset = offset;
block->length = length;
/* Slightly complicated, because the list should be FIFO. */
block->next = 0;
if (ctx->tail)
ctx->tail->next = block;
ctx->tail = block;
if (! ctx->head)
ctx->head = block;
}
static grub_err_t
grub_cmd_save_env (grub_extcmd_context_t ctxt, int argc, char **args)
{
struct grub_arg_list *state = ctxt->state;
grub_file_t file;
grub_envblk_t envblk;
struct blocklist *head = 0;
struct blocklist *tail = 0;
/* Store blocklists in a linked list. */
auto void NESTED_FUNC_ATTR read_hook (grub_disk_addr_t sector,
unsigned offset,
unsigned length);
void NESTED_FUNC_ATTR read_hook (grub_disk_addr_t sector,
unsigned offset, unsigned length)
{
struct blocklist *block;
if (offset + length > GRUB_DISK_SECTOR_SIZE)
/* Seemingly a bug. */
return;
block = grub_malloc (sizeof (*block));
if (! block)
return;
block->sector = sector;
block->offset = offset;
block->length = length;
/* Slightly complicated, because the list should be FIFO. */
block->next = 0;
if (tail)
tail->next = block;
tail = block;
if (! head)
head = block;
}
struct grub_cmd_save_env_ctx ctx = {
.head = 0,
.tail = 0
};
if (! argc)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "no variable is specified");
@ -336,13 +343,14 @@ grub_cmd_save_env (grub_extcmd_context_t ctxt, int argc, char **args)
return grub_error (GRUB_ERR_BAD_DEVICE, "disk device required");
}
file->read_hook = read_hook;
file->read_hook = save_env_read_hook;
file->read_hook_data = &ctx;
envblk = read_envblk_file (file);
file->read_hook = 0;
if (! envblk)
goto fail;
if (check_blocklists (envblk, head, file))
if (check_blocklists (envblk, ctx.head, file))
goto fail;
while (argc)
@ -363,12 +371,12 @@ grub_cmd_save_env (grub_extcmd_context_t ctxt, int argc, char **args)
args++;
}
write_blocklists (envblk, head, file);
write_blocklists (envblk, ctx.head, file);
fail:
if (envblk)
grub_envblk_close (envblk);
free_blocklists (head);
free_blocklists (ctx.head);
grub_file_close (file);
return grub_errno;
}

22
grub-core/commands/testload.c
View File

@ -31,6 +31,17 @@
GRUB_MOD_LICENSE ("GPLv3+");
/* Helper for grub_cmd_testload. */
static void
read_progress (grub_disk_addr_t sector __attribute__ ((unused)),
unsigned offset __attribute__ ((unused)),
unsigned len __attribute__ ((unused)),
void *data __attribute__ ((unused)))
{
grub_xputs (".");
grub_refresh ();
}
static grub_err_t
grub_cmd_testload (struct grub_command *cmd __attribute__ ((unused)),
int argc, char *argv[])
@ -39,15 +50,6 @@ grub_cmd_testload (struct grub_command *cmd __attribute__ ((unused)),
char *buf;
grub_size_t size;
grub_off_t pos;
auto void NESTED_FUNC_ATTR read_func (grub_disk_addr_t sector, unsigned offset, unsigned len);
void NESTED_FUNC_ATTR read_func (grub_disk_addr_t sector __attribute__ ((unused)),
unsigned offset __attribute__ ((unused)),
unsigned len __attribute__ ((unused)))
{
grub_xputs (".");
grub_refresh ();
}
if (argc < 1)
return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
@ -68,7 +70,7 @@ grub_cmd_testload (struct grub_command *cmd __attribute__ ((unused)),
goto fail;
grub_printf ("Reading %s sequentially", argv[0]);
file->read_hook = read_func;
file->read_hook = read_progress;
if (grub_file_read (file, buf, size) != (grub_ssize_t) size)
goto fail;
grub_printf (" Done.\n");

2
grub-core/fs/affs.c
View File

@ -531,7 +531,7 @@ grub_affs_read (grub_file_t file, char *buf, grub_size_t len)
(struct grub_affs_data *) file->data;
return grub_fshelp_read_file (data->diropen.data->disk, &data->diropen,
file->read_hook,
file->read_hook, file->read_hook_data,
file->offset, len, buf, grub_affs_read_block,
grub_be_to_cpu32 (data->diropen.di.size),
data->log_blocksize, 0);

41
grub-core/fs/bfs.c
View File

@ -217,9 +217,7 @@ read_bfs_file (grub_disk_t disk,
const struct grub_bfs_superblock *sb,
const struct grub_bfs_inode *ino,
grub_off_t off, void *buf, grub_size_t len,
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t sector,
unsigned offset,
unsigned length))
grub_disk_read_hook_t read_hook, void *read_hook_data)
{
if (len == 0)
return GRUB_ERR_NONE;
@ -245,6 +243,7 @@ read_bfs_file (grub_disk_t disk,
if (read_size > len)
read_size = len;
disk->read_hook = read_hook;
disk->read_hook_data = read_hook_data;
err = read_extent (disk, sb, &ino->direct[i], 0, off - pos,
buf, read_size);
disk->read_hook = 0;
@ -290,6 +289,7 @@ read_bfs_file (grub_disk_t disk,
if (read_size > len)
read_size = len;
disk->read_hook = read_hook;
disk->read_hook_data = read_hook_data;
err = read_extent (disk, sb, &entries[i], 0, off - pos,
buf, read_size);
disk->read_hook = 0;
@ -401,6 +401,7 @@ read_bfs_file (grub_disk_t disk,
if (read_size > len)
read_size = len;
disk->read_hook = read_hook;
disk->read_hook_data = read_hook_data;
err = read_extent (disk, sb, &l2_entries[l2n], 0, boff,
buf, read_size);
disk->read_hook = 0;
@ -431,7 +432,7 @@ iterate_in_b_tree (grub_disk_t disk,
int level;
grub_uint64_t node_off;
err = read_bfs_file (disk, sb, ino, 0, &head, sizeof (head), 0);
err = read_bfs_file (disk, sb, ino, 0, &head, sizeof (head), 0, 0);
if (err)
return 0;
node_off = grub_bfs_to_cpu64 (head.root);
@ -441,7 +442,8 @@ iterate_in_b_tree (grub_disk_t disk,
{
struct grub_bfs_btree_node node;
grub_uint64_t key_value;
err = read_bfs_file (disk, sb, ino, node_off, &node, sizeof (node), 0);
err = read_bfs_file (disk, sb, ino, node_off, &node, sizeof (node),
0, 0);
if (err)
return 0;
err = read_bfs_file (disk, sb, ino, node_off
@ -451,7 +453,7 @@ iterate_in_b_tree (grub_disk_t disk,
BTREE_ALIGN) +
grub_bfs_to_cpu_treehead (node.count_keys) *
sizeof (grub_uint16_t), &key_value,
sizeof (grub_uint64_t), 0);
sizeof (grub_uint64_t), 0, 0);
if (err)
return 0;
@ -461,7 +463,8 @@ iterate_in_b_tree (grub_disk_t disk,
while (1)
{
struct grub_bfs_btree_node node;
err = read_bfs_file (disk, sb, ino, node_off, &node, sizeof (node), 0);
err = read_bfs_file (disk, sb, ino, node_off, &node, sizeof (node),
0, 0);
if (err)
return 0;
{
@ -473,7 +476,7 @@ iterate_in_b_tree (grub_disk_t disk,
err =
read_bfs_file (disk, sb, ino, node_off + sizeof (node), key_data,
grub_bfs_to_cpu_treehead (node.total_key_len), 0);
grub_bfs_to_cpu_treehead (node.total_key_len), 0, 0);
if (err)
return 0;
key_data[grub_bfs_to_cpu_treehead (node.total_key_len)] = 0;
@ -483,7 +486,7 @@ iterate_in_b_tree (grub_disk_t disk,
(node.total_key_len), BTREE_ALIGN),
keylen_idx,
grub_bfs_to_cpu_treehead (node.count_keys) *
sizeof (grub_uint16_t), 0);
sizeof (grub_uint16_t), 0, 0);
if (err)
return 0;
err = read_bfs_file (disk, sb, ino, node_off
@ -494,7 +497,7 @@ iterate_in_b_tree (grub_disk_t disk,
grub_bfs_to_cpu_treehead (node.count_keys) *
sizeof (grub_uint16_t), key_values,
grub_bfs_to_cpu_treehead (node.count_keys) *
sizeof (grub_uint64_t), 0);
sizeof (grub_uint64_t), 0, 0);
if (err)
return 0;
@ -556,7 +559,7 @@ find_in_b_tree (grub_disk_t disk,
int level;
grub_uint64_t node_off;
err = read_bfs_file (disk, sb, ino, 0, &head, sizeof (head), 0);
err = read_bfs_file (disk, sb, ino, 0, &head, sizeof (head), 0, 0);
if (err)
return err;
node_off = grub_bfs_to_cpu64 (head.root);
@ -565,7 +568,8 @@ find_in_b_tree (grub_disk_t disk,
while (1)
{
struct grub_bfs_btree_node node;
err = read_bfs_file (disk, sb, ino, node_off, &node, sizeof (node), 0);
err = read_bfs_file (disk, sb, ino, node_off, &node, sizeof (node),
0, 0);
if (err)
return err;
if (node.count_keys == 0)
@ -578,7 +582,7 @@ find_in_b_tree (grub_disk_t disk,
unsigned i;
err =
read_bfs_file (disk, sb, ino, node_off + sizeof (node), key_data,
grub_bfs_to_cpu_treehead (node.total_key_len), 0);
grub_bfs_to_cpu_treehead (node.total_key_len), 0, 0);
if (err)
return err;
key_data[grub_bfs_to_cpu_treehead (node.total_key_len)] = 0;
@ -589,7 +593,7 @@ find_in_b_tree (grub_disk_t disk,
total_key_len),
BTREE_ALIGN), keylen_idx,
grub_bfs_to_cpu_treehead (node.count_keys) *
sizeof (grub_uint16_t), 0);
sizeof (grub_uint16_t), 0, 0);
if (err)
return err;
err = read_bfs_file (disk, sb, ino, node_off
@ -600,7 +604,7 @@ find_in_b_tree (grub_disk_t disk,
grub_bfs_to_cpu_treehead (node.count_keys) *
sizeof (grub_uint16_t), key_values,
grub_bfs_to_cpu_treehead (node.count_keys) *
sizeof (grub_uint64_t), 0);
sizeof (grub_uint64_t), 0, 0);
if (err)
return err;
@ -771,7 +775,7 @@ find_file (const char *path, grub_disk_t disk,
return grub_errno;
}
grub_free (old_alloc);
err = read_bfs_file (disk, sb, ino, 0, alloc, symsize, 0);
err = read_bfs_file (disk, sb, ino, 0, alloc, symsize, 0, 0);
if (err)
{
grub_free (alloc);
@ -974,7 +978,8 @@ grub_bfs_read (grub_file_t file, char *buf, grub_size_t len)
struct grub_bfs_data *data = file->data;
err = read_bfs_file (file->device->disk, &data->sb,
data->ino, file->offset, buf, len, file->read_hook);
data->ino, file->offset, buf, len,
file->read_hook, file->read_hook_data);
if (err)
return -1;
return len;
@ -1056,7 +1061,7 @@ read_bfs_attr (grub_disk_t disk,
if (read > len)
read = len;
err = read_bfs_file (disk, sb, &ino2.ino, 0, buf, read, 0);
err = read_bfs_file (disk, sb, &ino2.ino, 0, buf, read, 0, 0);
if (err)
return -1;
return read;

15
grub-core/fs/ext2.c
View File

@ -525,11 +525,11 @@ grub_ext2_read_block (grub_fshelp_node_t node, grub_disk_addr_t fileblock)
POS. Return the amount of read bytes in READ. */
static grub_ssize_t
grub_ext2_read_file (grub_fshelp_node_t node,
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t sector,
unsigned offset, unsigned length),
grub_disk_read_hook_t read_hook, void *read_hook_data,
grub_off_t pos, grub_size_t len, char *buf)
{
return grub_fshelp_read_file (node->data->disk, node, read_hook,
return grub_fshelp_read_file (node->data->disk, node,
read_hook, read_hook_data,
pos, len, buf, grub_ext2_read_block,
grub_cpu_to_le32 (node->inode.size)
| (((grub_off_t) grub_cpu_to_le32 (node->inode.size_high)) << 32),
@ -676,7 +676,7 @@ grub_ext2_read_symlink (grub_fshelp_node_t node)
grub_le_to_cpu32 (diro->inode.size));
else
{
grub_ext2_read_file (diro, 0, 0,
grub_ext2_read_file (diro, 0, 0, 0,
grub_le_to_cpu32 (diro->inode.size),
symlink);
if (grub_errno)
@ -709,7 +709,7 @@ grub_ext2_iterate_dir (grub_fshelp_node_t dir,
{
struct ext2_dirent dirent;
grub_ext2_read_file (diro, 0, fpos, sizeof (struct ext2_dirent),
grub_ext2_read_file (diro, 0, 0, fpos, sizeof (struct ext2_dirent),
(char *) &dirent);
if (grub_errno)
return 0;
@ -723,7 +723,7 @@ grub_ext2_iterate_dir (grub_fshelp_node_t dir,
struct grub_fshelp_node *fdiro;
enum grub_fshelp_filetype type = GRUB_FSHELP_UNKNOWN;
grub_ext2_read_file (diro, 0, fpos + sizeof (struct ext2_dirent),
grub_ext2_read_file (diro, 0, 0, fpos + sizeof (struct ext2_dirent),
dirent.namelen, filename);
if (grub_errno)
return 0;
@ -850,7 +850,8 @@ grub_ext2_read (grub_file_t file, char *buf, grub_size_t len)
{
struct grub_ext2_data *data = (struct grub_ext2_data *) file->data;
return grub_ext2_read_file (&data->diropen, file->read_hook,
return grub_ext2_read_file (&data->diropen,
file->read_hook, file->read_hook_data,
file->offset, len, buf);
}

15
grub-core/fs/fat.c
View File

@ -454,8 +454,7 @@ grub_fat_mount (grub_disk_t disk)
static grub_ssize_t
grub_fat_read_data (grub_disk_t disk, struct grub_fat_data *data,
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t sector,
unsigned offset, unsigned length),
grub_disk_read_hook_t read_hook, void *read_hook_data,
grub_off_t offset, grub_size_t len, char *buf)
{
grub_size_t size;
@ -561,6 +560,7 @@ grub_fat_read_data (grub_disk_t disk, struct grub_fat_data *data,
size = len;
disk->read_hook = read_hook;
disk->read_hook_data = read_hook_data;
grub_disk_read (disk, sector, offset, size, buf);
disk->read_hook = 0;
if (grub_errno)
@ -630,7 +630,7 @@ grub_fat_iterate_dir_next (grub_disk_t disk, struct grub_fat_data *data,
ctxt->offset += sizeof (dir);
if (grub_fat_read_data (disk, data, 0, ctxt->offset, sizeof (dir),
if (grub_fat_read_data (disk, data, 0, 0, ctxt->offset, sizeof (dir),
(char *) &dir)
!= sizeof (dir))
break;
@ -652,7 +652,7 @@ grub_fat_iterate_dir_next (grub_disk_t disk, struct grub_fat_data *data,
{
struct grub_fat_dir_entry sec;
ctxt->offset += sizeof (sec);
if (grub_fat_read_data (disk, data, 0,
if (grub_fat_read_data (disk, data, 0, 0,
ctxt->offset, sizeof (sec), (char *) &sec)
!= sizeof (sec))
break;
@ -729,7 +729,7 @@ grub_fat_iterate_dir_next (grub_disk_t disk, struct grub_fat_data *data,
ctxt->offset += sizeof (ctxt->dir);
/* Read a directory entry. */
if (grub_fat_read_data (disk, data, 0,
if (grub_fat_read_data (disk, data, 0, 0,
ctxt->offset, sizeof (ctxt->dir),
(char *) &ctxt->dir)
!= sizeof (ctxt->dir) || ctxt->dir.name[0] == 0)
@ -1031,7 +1031,8 @@ grub_fat_open (grub_file_t file, const char *name)
static grub_ssize_t
grub_fat_read (grub_file_t file, char *buf, grub_size_t len)
{
return grub_fat_read_data (file->device->disk, file->data, file->read_hook,
return grub_fat_read_data (file->device->disk, file->data,
file->read_hook, file->read_hook_data,
file->offset, len, buf);
}
@ -1064,7 +1065,7 @@ grub_fat_label (grub_device_t device, char **label)
{
offset += sizeof (dir);
if (grub_fat_read_data (disk, data, 0,
if (grub_fat_read_data (disk, data, 0, 0,
offset, sizeof (dir), (char *) &dir)
!= sizeof (dir))
break;

10
grub-core/fs/fshelp.c
View File

@ -248,14 +248,13 @@ grub_fshelp_find_file (const char *path, grub_fshelp_node_t rootnode,
/* Read LEN bytes from the file NODE on disk DISK into the buffer BUF,
beginning with the block POS. READ_HOOK should be set before
reading a block from the file. GET_BLOCK is used to translate file
blocks to disk blocks. The file is FILESIZE bytes big and the
reading a block from the file. READ_HOOK_DATA is passed through as
the DATA argument to READ_HOOK. GET_BLOCK is used to translate
file blocks to disk blocks. The file is FILESIZE bytes big and the
blocks have a size of LOG2BLOCKSIZE (in log2). */
grub_ssize_t
grub_fshelp_read_file (grub_disk_t disk, grub_fshelp_node_t node,
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t sector,
unsigned offset,
unsigned length),
grub_disk_read_hook_t read_hook, void *read_hook_data,
grub_off_t pos, grub_size_t len, char *buf,
grub_disk_addr_t (*get_block) (grub_fshelp_node_t node,
grub_disk_addr_t block),
@ -307,6 +306,7 @@ grub_fshelp_read_file (grub_disk_t disk, grub_fshelp_node_t node,
if (blknr)
{
disk->read_hook = read_hook;
disk->read_hook_data = read_hook_data;
grub_disk_read (disk, blknr + blocks_start, skipfirst,
blockend, buf);

7
grub-core/fs/hfs.c
View File

@ -243,8 +243,7 @@ grub_hfs_block (struct grub_hfs_data *data, grub_hfs_datarecord_t dat,
POS. Return the amount of read bytes in READ. */
static grub_ssize_t
grub_hfs_read_file (struct grub_hfs_data *data,
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t sector,
unsigned offset, unsigned length),
grub_disk_read_hook_t read_hook, void *read_hook_data,
grub_off_t pos, grub_size_t len, char *buf)
{
grub_off_t i;
@ -289,6 +288,7 @@ grub_hfs_read_file (struct grub_hfs_data *data,
if (blknr)
{
data->disk->read_hook = read_hook;
data->disk->read_hook_data = read_hook_data;
grub_disk_read (data->disk, blknr, skipfirst,
blockend, buf);
data->disk->read_hook = 0;
@ -1269,7 +1269,8 @@ grub_hfs_read (grub_file_t file, char *buf, grub_size_t len)
struct grub_hfs_data *data =
(struct grub_hfs_data *) file->data;
return grub_hfs_read_file (data, file->read_hook, file->offset, len, buf);
return grub_hfs_read_file (data, file->read_hook, file->read_hook_data,
file->offset, len, buf);
}

23
grub-core/fs/hfsplus.c
View File

@ -375,11 +375,11 @@ grub_hfsplus_read_block (grub_fshelp_node_t node, grub_disk_addr_t fileblock)
POS. Return the amount of read bytes in READ. */
static grub_ssize_t
grub_hfsplus_read_file (grub_fshelp_node_t node,
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t sector,
unsigned offset, unsigned length),
grub_disk_read_hook_t read_hook, void *read_hook_data,
grub_off_t pos, grub_size_t len, char *buf)
{
return grub_fshelp_read_file (node->data->disk, node, read_hook,
return grub_fshelp_read_file (node->data->disk, node,
read_hook, read_hook_data,
pos, len, buf, grub_hfsplus_read_block,
node->size,
node->data->log2blksize - GRUB_DISK_SECTOR_BITS,
@ -477,7 +477,7 @@ grub_hfsplus_mount (grub_disk_t disk)
grub_be_to_cpu64 (data->volheader.extents_file.size);
/* Read the essential information about the trees. */
if (grub_hfsplus_read_file (&data->catalog_tree.file, 0,
if (grub_hfsplus_read_file (&data->catalog_tree.file, 0, 0,
sizeof (struct grub_hfsplus_btnode),
sizeof (header), (char *) &header) <= 0)
goto fail;
@ -487,14 +487,14 @@ grub_hfsplus_mount (grub_disk_t disk)
data->case_sensitive = ((magic == GRUB_HFSPLUSX_MAGIC) &&
(header.key_compare == GRUB_HFSPLUSX_BINARYCOMPARE));
if (grub_hfsplus_read_file (&data->extoverflow_tree.file, 0,
if (grub_hfsplus_read_file (&data->extoverflow_tree.file, 0, 0,
sizeof (struct grub_hfsplus_btnode),
sizeof (header), (char *) &header) <= 0)
goto fail;
data->extoverflow_tree.root = grub_be_to_cpu32 (header.root);
if (grub_hfsplus_read_file (&data->extoverflow_tree.file, 0, 0,
if (grub_hfsplus_read_file (&data->extoverflow_tree.file, 0, 0, 0,
sizeof (node), (char *) &node) <= 0)
goto fail;
@ -605,7 +605,7 @@ grub_hfsplus_read_symlink (grub_fshelp_node_t node)
if (!symlink)
return 0;
numread = grub_hfsplus_read_file (node, 0, 0, node->size, symlink);
numread = grub_hfsplus_read_file (node, 0, 0, 0, node->size, symlink);
if (numread != (grub_ssize_t) node->size)
{
grub_free (symlink);
@ -649,7 +649,7 @@ grub_hfsplus_btree_iterate_node (struct grub_hfsplus_btree *btree,
saved_node = first_node->next;
node_count++;
if (grub_hfsplus_read_file (&btree->file, 0,
if (grub_hfsplus_read_file (&btree->file, 0, 0,
(((grub_disk_addr_t)
grub_be_to_cpu32 (first_node->next))
* btree->nodesize),
@ -702,7 +702,7 @@ grub_hfsplus_btree_search (struct grub_hfsplus_btree *btree,
node_count++;
/* Read a node. */
if (grub_hfsplus_read_file (&btree->file, 0,
if (grub_hfsplus_read_file (&btree->file, 0, 0,
(grub_disk_addr_t) currnode
* (grub_disk_addr_t) btree->nodesize,
btree->nodesize, (char *) node) <= 0)
@ -971,8 +971,9 @@ grub_hfsplus_read (grub_file_t file, char *buf, grub_size_t len)
struct grub_hfsplus_data *data =
(struct grub_hfsplus_data *) file->data;
return grub_hfsplus_read_file (&data->opened_file, file->read_hook,
file->offset, len, buf);
return grub_hfsplus_read_file (&data->opened_file,
file->read_hook, file->read_hook_data,
file->offset, len, buf);
}
/* Context for grub_hfsplus_dir. */

1
grub-core/fs/iso9660.c
View File

@ -961,6 +961,7 @@ grub_iso9660_read (grub_file_t file, char *buf, grub_size_t len)
/* XXX: The file is stored in as a single extent. */
data->disk->read_hook = file->read_hook;
data->disk->read_hook_data = file->read_hook_data;
read_node (data->node, file->offset, len, buf);
data->disk->read_hook = NULL;

9
grub-core/fs/jfs.c
View File

@ -577,8 +577,7 @@ grub_jfs_getent (struct grub_jfs_diropen *diro)
POS. Return the amount of read bytes in READ. */
static grub_ssize_t
grub_jfs_read_file (struct grub_jfs_data *data,
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t sector,
unsigned offset, unsigned length),
grub_disk_read_hook_t read_hook, void *read_hook_data,
grub_off_t pos, grub_size_t len, char *buf)
{
grub_off_t i;
@ -616,6 +615,7 @@ grub_jfs_read_file (struct grub_jfs_data *data,
}
data->disk->read_hook = read_hook;
data->disk->read_hook_data = read_hook_data;
grub_disk_read (data->disk,
blknr << (grub_le_to_cpu16 (data->sblock.log2_blksz)
- GRUB_DISK_SECTOR_BITS),
@ -782,7 +782,7 @@ grub_jfs_lookup_symlink (struct grub_jfs_data *data, grub_uint32_t ino)
if (size <= sizeof (data->currinode.symlink.path))
grub_strncpy (symlink, (char *) (data->currinode.symlink.path), size);
else if (grub_jfs_read_file (data, 0, 0, size, symlink) < 0)
else if (grub_jfs_read_file (data, 0, 0, 0, size, symlink) < 0)
return grub_errno;
symlink[size] = '\0';
@ -894,7 +894,8 @@ grub_jfs_read (grub_file_t file, char *buf, grub_size_t len)
struct grub_jfs_data *data =
(struct grub_jfs_data *) file->data;
return grub_jfs_read_file (data, file->read_hook, file->offset, len, buf);
return grub_jfs_read_file (data, file->read_hook, file->read_hook_data,
file->offset, len, buf);
}

17
grub-core/fs/minix.c
View File

@ -249,8 +249,7 @@ grub_minix_get_file_block (struct grub_minix_data *data, unsigned int blk)
POS. Return the amount of read bytes in READ. */
static grub_ssize_t
grub_minix_read_file (struct grub_minix_data *data,
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t sector,
unsigned offset, unsigned length),
grub_disk_read_hook_t read_hook, void *read_hook_data,
grub_off_t pos, grub_size_t len, char *buf)
{
grub_uint32_t i;
@ -301,6 +300,7 @@ grub_minix_read_file (struct grub_minix_data *data,
}
data->disk->read_hook = read_hook;
data->disk->read_hook_data = read_hook_data;
grub_disk_read (data->disk,
GRUB_MINIX_ZONE2SECT(blknr),
skipfirst, blockend, buf);
@ -352,7 +352,7 @@ grub_minix_lookup_symlink (struct grub_minix_data *data, grub_minix_ino_t ino)
if (++data->linknest > GRUB_MINIX_MAX_SYMLNK_CNT)
return grub_error (GRUB_ERR_SYMLINK_LOOP, N_("too deep nesting of symlinks"));
if (grub_minix_read_file (data, 0, 0,
if (grub_minix_read_file (data, 0, 0, 0,
GRUB_MINIX_INODE_SIZE (data), symlink) < 0)
return grub_errno;
@ -409,10 +409,10 @@ grub_minix_find_file (struct grub_minix_data *data, const char *path)
if (grub_strlen (name) == 0)
return GRUB_ERR_NONE;
if (grub_minix_read_file (data, 0, pos, sizeof (ino),
if (grub_minix_read_file (data, 0, 0, pos, sizeof (ino),
(char *) &ino) < 0)
return grub_errno;
if (grub_minix_read_file (data, 0, pos + sizeof (ino),
if (grub_minix_read_file (data, 0, 0, pos + sizeof (ino),
data->filename_size, (char *) filename)< 0)
return grub_errno;
@ -568,11 +568,11 @@ grub_minix_dir (grub_device_t device, const char *path,
grub_memset (&info, 0, sizeof (info));
if (grub_minix_read_file (data, 0, pos, sizeof (ino),
if (grub_minix_read_file (data, 0, 0, pos, sizeof (ino),
(char *) &ino) < 0)
return grub_errno;
if (grub_minix_read_file (data, 0, pos + sizeof (ino),
if (grub_minix_read_file (data, 0, 0, pos + sizeof (ino),
data->filename_size,
(char *) filename) < 0)
return grub_errno;
@ -649,7 +649,8 @@ grub_minix_read (grub_file_t file, char *buf, grub_size_t len)
struct grub_minix_data *data =
(struct grub_minix_data *) file->data;
return grub_minix_read_file (data, file->read_hook, file->offset, len, buf);
return grub_minix_read_file (data, file->read_hook, file->read_hook_data,
file->offset, len, buf);
}

17
grub-core/fs/nilfs2.c
View File

@ -630,13 +630,11 @@ grub_nilfs2_read_block (grub_fshelp_node_t node, grub_disk_addr_t fileblock)
POS. Return the amount of read bytes in READ. */
static grub_ssize_t
grub_nilfs2_read_file (grub_fshelp_node_t node,
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t
sector,
unsigned offset,
unsigned length),
grub_disk_read_hook_t read_hook, void *read_hook_data,
grub_off_t pos, grub_size_t len, char *buf)
{
return grub_fshelp_read_file (node->data->disk, node, read_hook,
return grub_fshelp_read_file (node->data->disk, node,
read_hook, read_hook_data,
pos, len, buf, grub_nilfs2_read_block,
grub_le_to_cpu64 (node->inode.i_size),
LOG2_NILFS2_BLOCK_SIZE (node->data), 0);
@ -856,7 +854,7 @@ grub_nilfs2_read_symlink (grub_fshelp_node_t node)
if (!symlink)
return 0;
grub_nilfs2_read_file (diro, 0, 0,
grub_nilfs2_read_file (diro, 0, 0, 0,
grub_le_to_cpu64 (diro->inode.i_size), symlink);
if (grub_errno)
{
@ -887,7 +885,7 @@ grub_nilfs2_iterate_dir (grub_fshelp_node_t dir,
{
struct grub_nilfs2_dir_entry dirent;
grub_nilfs2_read_file (diro, 0, fpos,
grub_nilfs2_read_file (diro, 0, 0, fpos,
sizeof (struct grub_nilfs2_dir_entry),
(char *) &dirent);
if (grub_errno)
@ -902,7 +900,7 @@ grub_nilfs2_iterate_dir (grub_fshelp_node_t dir,
struct grub_fshelp_node *fdiro;
enum grub_fshelp_filetype type = GRUB_FSHELP_UNKNOWN;
grub_nilfs2_read_file (diro, 0,
grub_nilfs2_read_file (diro, 0, 0,
fpos + sizeof (struct grub_nilfs2_dir_entry),
dirent.name_len, filename);
if (grub_errno)
@ -1025,7 +1023,8 @@ grub_nilfs2_read (grub_file_t file, char *buf, grub_size_t len)
{
struct grub_nilfs2_data *data = (struct grub_nilfs2_data *) file->data;
return grub_nilfs2_read_file (&data->diropen, file->read_hook,
return grub_nilfs2_read_file (&data->diropen,
file->read_hook, file->read_hook_data,
file->offset, len, buf);
}

48
grub-core/fs/ntfs.c
View File

@ -91,21 +91,15 @@ static grub_err_t read_mft (struct grub_ntfs_data *data, grub_uint8_t *buf,
static grub_err_t read_attr (struct grub_ntfs_attr *at, grub_uint8_t *dest,
grub_disk_addr_t ofs, grub_size_t len,
int cached,
void
NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t
sector,
unsigned offset,
unsigned length));
grub_disk_read_hook_t read_hook,
void *read_hook_data);
static grub_err_t read_data (struct grub_ntfs_attr *at, grub_uint8_t *pa,
grub_uint8_t *dest,
grub_disk_addr_t ofs, grub_size_t len,
int cached,
void
NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t
sector,
unsigned offset,
unsigned length));
grub_disk_read_hook_t read_hook,
void *read_hook_data);
static void
init_attr (struct grub_ntfs_attr *at, struct grub_ntfs_file *mft)
@ -207,7 +201,7 @@ find_attr (struct grub_ntfs_attr *at, grub_uint8_t attr)
at->edat_buf = grub_malloc (n);
if (!at->edat_buf)
return NULL;
if (read_data (at, pa, at->edat_buf, 0, n, 0, 0))
if (read_data (at, pa, at->edat_buf, 0, n, 0, 0, 0))
{
grub_error (GRUB_ERR_BAD_FS,
"fail to read non-resident attribute list");
@ -249,7 +243,7 @@ find_attr (struct grub_ntfs_attr *at, grub_uint8_t attr)
if (read_attr
(at, pa + 0x10,
u32at (pa, 0x10) * (at->mft->data->mft_size << GRUB_NTFS_BLK_SHR),
at->mft->data->mft_size << GRUB_NTFS_BLK_SHR, 0, 0))
at->mft->data->mft_size << GRUB_NTFS_BLK_SHR, 0, 0, 0))
return NULL;
pa += u16at (pa, 4);
}
@ -325,9 +319,7 @@ retry:
{
if ((ctx->attr) && (ctx->attr->flags & GRUB_NTFS_AF_ALST))
{
void NESTED_FUNC_ATTR (*save_hook) (grub_disk_addr_t sector,
unsigned offset,
unsigned length);
grub_disk_read_hook_t save_hook;
save_hook = ctx->comp.disk->read_hook;
ctx->comp.disk->read_hook = 0;
@ -379,9 +371,7 @@ grub_ntfs_read_block (grub_fshelp_node_t node, grub_disk_addr_t block)
static grub_err_t
read_data (struct grub_ntfs_attr *at, grub_uint8_t *pa, grub_uint8_t *dest,
grub_disk_addr_t ofs, grub_size_t len, int cached,
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t sector,
unsigned offset,
unsigned length))
grub_disk_read_hook_t read_hook, void *read_hook_data)
{
grub_disk_addr_t vcn;
struct grub_ntfs_rlst cc, *ctx;
@ -480,7 +470,8 @@ read_data (struct grub_ntfs_attr *at, grub_uint8_t *pa, grub_uint8_t *dest,
if (!(ctx->flags & GRUB_NTFS_RF_COMP))
{
grub_fshelp_read_file (ctx->comp.disk, (grub_fshelp_node_t) ctx,
read_hook, ofs, len, (char *) dest,
read_hook, read_hook_data, ofs, len,
(char *) dest,
grub_ntfs_read_block, ofs + len,
ctx->comp.log_spc, 0);
return grub_errno;
@ -495,9 +486,7 @@ read_data (struct grub_ntfs_attr *at, grub_uint8_t *pa, grub_uint8_t *dest,
static grub_err_t
read_attr (struct grub_ntfs_attr *at, grub_uint8_t *dest, grub_disk_addr_t ofs,
grub_size_t len, int cached,
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t sector,
unsigned offset,
unsigned length))
grub_disk_read_hook_t read_hook, void *read_hook_data)
{
grub_uint8_t *save_cur;
grub_uint8_t attr;
@ -532,7 +521,8 @@ read_attr (struct grub_ntfs_attr *at, grub_uint8_t *dest, grub_disk_addr_t ofs,
}
pp = find_attr (at, attr);
if (pp)
ret = read_data (at, pp, dest, ofs, len, cached, read_hook);
ret = read_data (at, pp, dest, ofs, len, cached,
read_hook, read_hook_data);
else
ret =
(grub_errno) ? grub_errno : grub_error (GRUB_ERR_BAD_FS,
@ -546,7 +536,7 @@ read_mft (struct grub_ntfs_data *data, grub_uint8_t *buf, grub_uint32_t mftno)
{
if (read_attr
(&data->mmft.attr, buf, mftno * ((grub_disk_addr_t) data->mft_size << GRUB_NTFS_BLK_SHR),
data->mft_size << GRUB_NTFS_BLK_SHR, 0, 0))
data->mft_size << GRUB_NTFS_BLK_SHR, 0, 0, 0))
return grub_error (GRUB_ERR_BAD_FS, "read MFT 0x%X fails", mftno);
return fixup (buf, data->mft_size, (const grub_uint8_t *) "FILE");
}
@ -717,7 +707,7 @@ grub_ntfs_read_symlink (grub_fshelp_node_t node)
}
err = read_attr (&mft->attr, (grub_uint8_t *) &symdesc, 0,
sizeof (struct symlink_descriptor), 1, 0);
sizeof (struct symlink_descriptor), 1, 0, 0);
if (err)
return NULL;
@ -743,7 +733,7 @@ grub_ntfs_read_symlink (grub_fshelp_node_t node)
if (!buf16)
return NULL;
err = read_attr (&mft->attr, (grub_uint8_t *) buf16, off, len, 1, 0);
err = read_attr (&mft->attr, (grub_uint8_t *) buf16, off, len, 1, 0, 0);
if (err)
return NULL;
@ -852,7 +842,7 @@ grub_ntfs_iterate_dir (grub_fshelp_node_t dir,
}
else
{
if (read_data (at, cur_pos, bmp, 0, bitmap_len, 0, 0))
if (read_data (at, cur_pos, bmp, 0, bitmap_len, 0, 0, 0))
{
grub_error (GRUB_ERR_BAD_FS,
"fails to read non-resident $BITMAP");
@ -899,7 +889,7 @@ grub_ntfs_iterate_dir (grub_fshelp_node_t dir,
{
if ((read_attr
(at, indx, i * (mft->data->idx_size << GRUB_NTFS_BLK_SHR),
(mft->data->idx_size << GRUB_NTFS_BLK_SHR), 0, 0))
(mft->data->idx_size << GRUB_NTFS_BLK_SHR), 0, 0, 0))
|| (fixup (indx, mft->data->idx_size,
(const grub_uint8_t *) "INDX")))
goto done;
@ -1136,7 +1126,7 @@ grub_ntfs_read (grub_file_t file, char *buf, grub_size_t len)
mft->attr.save_pos = 1;
read_attr (&mft->attr, (grub_uint8_t *) buf, file->offset, len, 1,
file->read_hook);
file->read_hook, file->read_hook_data);
return (grub_errno) ? -1 : (grub_ssize_t) len;
}

1
grub-core/fs/ntfscomp.c
View File

@ -302,6 +302,7 @@ ntfscomp (struct grub_ntfs_attr *at, grub_uint8_t *dest, grub_disk_addr_t ofs,
ret = 0;
//ctx->comp.disk->read_hook = read_hook;
//ctx->comp.disk->read_hook_data = read_hook_data;
if ((vcn > ctx->target_vcn) &&
(read_block

15
grub-core/fs/reiserfs.c
View File

@ -240,9 +240,8 @@ struct grub_reiserfs_data
static grub_ssize_t
grub_reiserfs_read_real (struct grub_fshelp_node *node,
grub_off_t off, char *buf, grub_size_t len,
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t sector,
unsigned offset,
unsigned length));
grub_disk_read_hook_t read_hook,
void *read_hook_data);
/* Internal-only functions. Not to be used outside of this file. */
@ -674,7 +673,7 @@ grub_reiserfs_read_symlink (grub_fshelp_node_t node)
if (! symlink_buffer)
return 0;
ret = grub_reiserfs_read_real (node, 0, symlink_buffer, len, 0);
ret = grub_reiserfs_read_real (node, 0, symlink_buffer, len, 0, 0);
if (ret < 0)
{
grub_free (symlink_buffer);
@ -1036,9 +1035,7 @@ grub_reiserfs_open (struct grub_file *file, const char *name)
static grub_ssize_t
grub_reiserfs_read_real (struct grub_fshelp_node *node,
grub_off_t off, char *buf, grub_size_t len,
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t sector,
unsigned offset,
unsigned length))
grub_disk_read_hook_t read_hook, void *read_hook_data)
{
unsigned int indirect_block, indirect_block_count;
struct grub_reiserfs_key key;
@ -1105,6 +1102,7 @@ grub_reiserfs_read_real (struct grub_fshelp_node *node,
(unsigned) block, (unsigned) offset,
(unsigned) (offset + length));
found.data->disk->read_hook = read_hook;
found.data->disk->read_hook_data = read_hook_data;
grub_disk_read (found.data->disk,
block,
offset
@ -1131,6 +1129,7 @@ grub_reiserfs_read_real (struct grub_fshelp_node *node,
if (grub_errno)
goto fail;
found.data->disk->read_hook = read_hook;
found.data->disk->read_hook_data = read_hook_data;
for (indirect_block = 0;
indirect_block < indirect_block_count
&& current_position < final_position;
@ -1236,7 +1235,7 @@ static grub_ssize_t
grub_reiserfs_read (grub_file_t file, char *buf, grub_size_t len)
{
return grub_reiserfs_read_real (file->data, file->offset, buf, len,
file->read_hook);
file->read_hook, file->read_hook_data);
}
/* Close the file FILE. */

1
grub-core/fs/romfs.c
View File

@ -399,6 +399,7 @@ grub_romfs_read (grub_file_t file, char *buf, grub_size_t len)
/* XXX: The file is stored in as a single extent. */
data->data->disk->read_hook = file->read_hook;
data->data->disk->read_hook_data = file->read_hook_data;
grub_disk_read (data->data->disk,
(data->data_addr + file->offset) >> GRUB_DISK_SECTOR_BITS,
(data->data_addr + file->offset) & (GRUB_DISK_SECTOR_SIZE - 1),

9
grub-core/fs/sfs.c
View File

@ -345,11 +345,11 @@ grub_sfs_read_block (grub_fshelp_node_t node, grub_disk_addr_t fileblock)
POS. Return the amount of read bytes in READ. */
static grub_ssize_t
grub_sfs_read_file (grub_fshelp_node_t node,
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t sector,
unsigned offset, unsigned length),
grub_disk_read_hook_t read_hook, void *read_hook_data,
grub_off_t pos, grub_size_t len, char *buf)
{
return grub_fshelp_read_file (node->data->disk, node, read_hook,
return grub_fshelp_read_file (node->data->disk, node,
read_hook, read_hook_data,
pos, len, buf, grub_sfs_read_block,
node->size, node->data->log_blocksize, 0);
}
@ -646,7 +646,8 @@ grub_sfs_read (grub_file_t file, char *buf, grub_size_t len)
{
struct grub_sfs_data *data = (struct grub_sfs_data *) file->data;
return grub_sfs_read_file (&data->diropen, file->read_hook,
return grub_sfs_read_file (&data->diropen,
file->read_hook, file->read_hook_data,
file->offset, len, buf);
}

22
grub-core/fs/udf.c
View File

@ -564,9 +564,7 @@ fail:
static grub_ssize_t
grub_udf_read_file (grub_fshelp_node_t node,
void NESTED_FUNC_ATTR
(*read_hook) (grub_disk_addr_t sector,
unsigned offset, unsigned length),
grub_disk_read_hook_t read_hook, void *read_hook_data,
grub_off_t pos, grub_size_t len, char *buf)
{
switch (U16 (node->block.fe.icbtag.flags) & GRUB_UDF_ICBTAG_FLAG_AD_MASK)
@ -591,10 +589,11 @@ grub_udf_read_file (grub_fshelp_node_t node,
return 0;
}
return grub_fshelp_read_file (node->data->disk, node, read_hook,
pos, len, buf, grub_udf_read_block,
U64 (node->block.fe.file_size),
node->data->lbshift, 0);
return grub_fshelp_read_file (node->data->disk, node,
read_hook, read_hook_data,
pos, len, buf, grub_udf_read_block,
U64 (node->block.fe.file_size),
node->data->lbshift, 0);
}
static unsigned sblocklist[] = { 256, 512, 0 };
@ -861,7 +860,7 @@ grub_udf_iterate_dir (grub_fshelp_node_t dir,
while (offset < U64 (dir->block.fe.file_size))
{
if (grub_udf_read_file (dir, 0, offset, sizeof (dirent),
if (grub_udf_read_file (dir, 0, 0, offset, sizeof (dirent),
(char *) &dirent) != sizeof (dirent))
return 0;
@ -898,7 +897,7 @@ grub_udf_iterate_dir (grub_fshelp_node_t dir,
if (child->block.fe.icbtag.file_type == GRUB_UDF_ICBTAG_TYPE_SYMLINK)
type = GRUB_FSHELP_SYMLINK;
if ((grub_udf_read_file (dir, 0, offset,
if ((grub_udf_read_file (dir, 0, 0, offset,
dirent.file_ident_length,
(char *) raw))
!= dirent.file_ident_length)
@ -937,7 +936,7 @@ grub_udf_read_symlink (grub_fshelp_node_t node)
raw = grub_malloc (sz);
if (!raw)
return NULL;
if (grub_udf_read_file (node, NULL, 0, sz, (char *) raw) < 0)
if (grub_udf_read_file (node, NULL, NULL, 0, sz, (char *) raw) < 0)
{
grub_free (raw);
return NULL;
@ -1149,7 +1148,8 @@ grub_udf_read (grub_file_t file, char *buf, grub_size_t len)
{
struct grub_fshelp_node *node = (struct grub_fshelp_node *) file->data;
return grub_udf_read_file (node, file->read_hook, file->offset, len, buf);
return grub_udf_read_file (node, file->read_hook, file->read_hook_data,
file->offset, len, buf);
}
static grub_err_t

17
grub-core/fs/ufs.c
View File

@ -331,8 +331,7 @@ grub_ufs_get_file_block (struct grub_ufs_data *data, grub_disk_addr_t blk)
POS. Return the amount of read bytes in READ. */
static grub_ssize_t
grub_ufs_read_file (struct grub_ufs_data *data,
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t sector,
unsigned offset, unsigned length),
grub_disk_read_hook_t read_hook, void *read_hook_data,
grub_off_t pos, grub_size_t len, char *buf)
{
struct grub_ufs_sblock *sblock = &data->sblock;
@ -380,6 +379,7 @@ grub_ufs_read_file (struct grub_ufs_data *data,
if (blknr)
{
data->disk->read_hook = read_hook;
data->disk->read_hook_data = read_hook_data;
grub_disk_read (data->disk,
blknr << grub_ufs_to_cpu32 (data->sblock.log2_blksz),
skipfirst, blockend, buf);
@ -455,7 +455,7 @@ grub_ufs_lookup_symlink (struct grub_ufs_data *data, int ino)
&& INODE_SIZE (data) <= sizeof (data->inode.symlink))
grub_strcpy (symlink, (char *) data->inode.symlink);
else
grub_ufs_read_file (data, 0, 0, INODE_SIZE (data), symlink);
grub_ufs_read_file (data, 0, 0, 0, INODE_SIZE (data), symlink);
symlink[INODE_SIZE (data)] = '\0';
/* The symlink is an absolute path, go back to the root inode. */
@ -509,7 +509,7 @@ grub_ufs_find_file (struct grub_ufs_data *data, const char *path)
if (grub_strlen (name) == 0)
return GRUB_ERR_NONE;
if (grub_ufs_read_file (data, 0, pos, sizeof (dirent),
if (grub_ufs_read_file (data, 0, 0, pos, sizeof (dirent),
(char *) &dirent) < 0)
return grub_errno;
@ -521,7 +521,7 @@ grub_ufs_find_file (struct grub_ufs_data *data, const char *path)
{
char filename[namelen + 1];
if (grub_ufs_read_file (data, 0, pos + sizeof (dirent),
if (grub_ufs_read_file (data, 0, 0, pos + sizeof (dirent),
namelen, filename) < 0)
return grub_errno;
@ -659,7 +659,7 @@ grub_ufs_dir (grub_device_t device, const char *path,
struct grub_ufs_dirent dirent;
int namelen;
if (grub_ufs_read_file (data, 0, pos, sizeof (dirent),
if (grub_ufs_read_file (data, 0, 0, pos, sizeof (dirent),
(char *) &dirent) < 0)
break;
@ -679,7 +679,7 @@ grub_ufs_dir (grub_device_t device, const char *path,
grub_memset (&info, 0, sizeof (info));
if (grub_ufs_read_file (data, 0, pos + sizeof (dirent),
if (grub_ufs_read_file (data, 0, 0, pos + sizeof (dirent),
namelen, filename) < 0)
break;
@ -752,7 +752,8 @@ grub_ufs_read (grub_file_t file, char *buf, grub_size_t len)
struct grub_ufs_data *data =
(struct grub_ufs_data *) file->data;
return grub_ufs_read_file (data, file->read_hook, file->offset, len, buf);
return grub_ufs_read_file (data, file->read_hook, file->read_hook_data,
file->offset, len, buf);
}

15
grub-core/fs/xfs.c
View File

@ -379,11 +379,11 @@ grub_xfs_read_block (grub_fshelp_node_t node, grub_disk_addr_t fileblock)
POS. Return the amount of read bytes in READ. */
static grub_ssize_t
grub_xfs_read_file (grub_fshelp_node_t node,
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t sector,
unsigned offset, unsigned length),
grub_disk_read_hook_t read_hook, void *read_hook_data,
grub_off_t pos, grub_size_t len, char *buf)
{
return grub_fshelp_read_file (node->data->disk, node, read_hook,
return grub_fshelp_read_file (node->data->disk, node,
read_hook, read_hook_data,
pos, len, buf, grub_xfs_read_block,
grub_be_to_cpu64 (node->inode.size),
node->data->sblock.log2_bsize
@ -410,7 +410,7 @@ grub_xfs_read_symlink (grub_fshelp_node_t node)
if (!symlink)
return 0;
numread = grub_xfs_read_file (node, 0, 0, size, symlink);
numread = grub_xfs_read_file (node, 0, 0, 0, size, symlink);
if (numread != size)
{
grub_free (symlink);
@ -592,7 +592,7 @@ grub_xfs_iterate_dir (grub_fshelp_node_t dir,
struct grub_xfs_dirblock_tail *tail;
tail = (struct grub_xfs_dirblock_tail *) &dirblock[tail_start];
numread = grub_xfs_read_file (dir, 0,
numread = grub_xfs_read_file (dir, 0, 0,
blk << dirblk_log2,
dirblk_size, dirblock);
if (numread != dirblk_size)
@ -829,8 +829,9 @@ grub_xfs_read (grub_file_t file, char *buf, grub_size_t len)
struct grub_xfs_data *data =
(struct grub_xfs_data *) file->data;
return grub_xfs_read_file (&data->diropen, file->read_hook,
file->offset, len, buf);
return grub_xfs_read_file (&data->diropen,
file->read_hook, file->read_hook_data,
file->offset, len, buf);
}

2
grub-core/kern/disk.c
View File

@ -603,7 +603,7 @@ grub_disk_read (grub_disk_t disk, grub_disk_addr_t sector,
cl = GRUB_DISK_SECTOR_SIZE - o;
if (cl > l)
cl = l;
(disk->read_hook) (s, o, cl);
(disk->read_hook) (s, o, cl, disk->read_hook_data);
s++;
l -= cl;
o = 0;

12
include/grub/disk.h
View File

@ -19,6 +19,8 @@
#ifndef GRUB_DISK_HEADER
#define GRUB_DISK_HEADER 1
#include <config.h>
#include <grub/symbol.h>
#include <grub/err.h>
#include <grub/types.h>
@ -99,6 +101,10 @@ extern grub_disk_dev_t EXPORT_VAR (grub_disk_dev_list);
struct grub_partition;
typedef void (*grub_disk_read_hook_t) (grub_disk_addr_t sector,
unsigned offset, unsigned length,
void *data);
/* Disk. */
struct grub_disk
{
@ -122,8 +128,10 @@ struct grub_disk
/* Called when a sector was read. OFFSET is between 0 and
the sector size minus 1, and LENGTH is between 0 and the sector size. */
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t sector,
unsigned offset, unsigned length);
grub_disk_read_hook_t read_hook;
/* Caller-specific data passed to the read hook. */
void *read_hook_data;
/* Device-specific data. */
void *data;

7
include/grub/file.h
View File

@ -23,6 +23,7 @@
#include <grub/err.h>
#include <grub/device.h>
#include <grub/fs.h>
#include <grub/disk.h>
/* File description. */
struct grub_file
@ -46,8 +47,10 @@ struct grub_file
void *data;
/* This is called when a sector is read. Used only for a disk device. */
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t sector,
unsigned offset, unsigned length);
grub_disk_read_hook_t read_hook;
/* Caller-specific data passed to the read hook. */
void *read_hook_data;
};
typedef struct grub_file *grub_file_t;

6
include/grub/fshelp.h
View File

@ -23,6 +23,7 @@
#include <grub/types.h>
#include <grub/symbol.h>
#include <grub/err.h>
#include <grub/disk.h>
typedef struct grub_fshelp_node *grub_fshelp_node_t;
@ -68,9 +69,8 @@ EXPORT_FUNC(grub_fshelp_find_file) (const char *path,
blocks have a size of LOG2BLOCKSIZE (in log2). */
grub_ssize_t
EXPORT_FUNC(grub_fshelp_read_file) (grub_disk_t disk, grub_fshelp_node_t node,
void NESTED_FUNC_ATTR (*read_hook) (grub_disk_addr_t sector,
unsigned offset,
unsigned length),
grub_disk_read_hook_t read_hook,
void *read_hook_data,
grub_off_t pos, grub_size_t len, char *buf,
grub_disk_addr_t (*get_block) (grub_fshelp_node_t node,
grub_disk_addr_t block),

210
util/grub-setup.c
View File

@ -138,6 +138,70 @@ write_rootdev (grub_device_t root_dev,
#define BOOT_SECTOR 0
#endif
/* Helper for setup. */
static void
save_first_sector (grub_disk_addr_t sector, unsigned offset, unsigned length,
void *data)
{
grub_disk_addr_t *first_sector = data;
grub_util_info ("the first sector is <%" PRIuGRUB_UINT64_T ",%u,%u>",
sector, offset, length);
if (offset != 0 || length != GRUB_DISK_SECTOR_SIZE)
grub_util_error ("%s", _("the first sector of the core file is not sector-aligned"));
*first_sector = sector;
}
struct blocklists
{
struct grub_boot_blocklist *first_block, *block;
#ifdef GRUB_SETUP_BIOS
grub_uint16_t current_segment;
#endif
grub_uint16_t last_length;
};
/* Helper for setup. */
static void
save_blocklists (grub_disk_addr_t sector, unsigned offset, unsigned length,
void *data)
{
struct blocklists *bl = data;
struct grub_boot_blocklist *prev = bl->block + 1;
grub_util_info ("saving <%" PRIuGRUB_UINT64_T ",%u,%u>",
sector, offset, length);
if (offset != 0 || bl->last_length != GRUB_DISK_SECTOR_SIZE)
grub_util_error ("%s", _("non-sector-aligned data is found in the core file"));
if (bl->block != bl->first_block
&& (grub_target_to_host64 (prev->start)
+ grub_target_to_host16 (prev->len)) == sector)
{
grub_uint16_t t = grub_target_to_host16 (prev->len) + 1;
prev->len = grub_host_to_target16 (t);
}
else
{
bl->block->start = grub_host_to_target64 (sector);
bl->block->len = grub_host_to_target16 (1);
#ifdef GRUB_SETUP_BIOS
bl->block->segment = grub_host_to_target16 (bl->current_segment);
#endif
bl->block--;
if (bl->block->len)
grub_util_error ("%s", _("the sectors of the core file are too fragmented"));
}
bl->last_length = length;
#ifdef GRUB_SETUP_BIOS
bl->current_segment += GRUB_DISK_SECTOR_SIZE >> 4;
#endif
}
#ifdef GRUB_SETUP_BIOS
/* Context for setup/identify_partmap. */
struct identify_partmap_ctx
@ -147,7 +211,7 @@ struct identify_partmap_ctx
int multiple_partmaps;
};
/* Helper for setup/identify_partmap.
/* Helper for setup.
Unlike root_dev, with dest_dev we're interested in the partition map even
if dest_dev itself is a whole disk. */
static int
@ -190,73 +254,16 @@ setup (const char *dir,
grub_uint16_t core_sectors;
#endif
grub_device_t root_dev = 0, dest_dev, core_dev;
struct grub_boot_blocklist *first_block, *block;
struct blocklists bl;
char *tmp_img;
grub_disk_addr_t first_sector;
#ifdef GRUB_SETUP_BIOS
grub_uint16_t current_segment
= GRUB_BOOT_I386_PC_KERNEL_SEG + (GRUB_DISK_SECTOR_SIZE >> 4);
#endif
grub_uint16_t last_length = GRUB_DISK_SECTOR_SIZE;
FILE *fp;
auto void NESTED_FUNC_ATTR save_first_sector (grub_disk_addr_t sector,
unsigned offset,
unsigned length);
auto void NESTED_FUNC_ATTR save_blocklists (grub_disk_addr_t sector,
unsigned offset,
unsigned length);
void NESTED_FUNC_ATTR save_first_sector (grub_disk_addr_t sector,
unsigned offset,
unsigned length)
{
grub_util_info ("the first sector is <%" PRIuGRUB_UINT64_T ",%u,%u>",
sector, offset, length);
if (offset != 0 || length != GRUB_DISK_SECTOR_SIZE)
grub_util_error ("%s", _("the first sector of the core file is not sector-aligned"));
first_sector = sector;
}
void NESTED_FUNC_ATTR save_blocklists (grub_disk_addr_t sector,
unsigned offset,
unsigned length)
{
struct grub_boot_blocklist *prev = block + 1;
grub_util_info ("saving <%" PRIuGRUB_UINT64_T ",%u,%u>",
sector, offset, length);
if (offset != 0 || last_length != GRUB_DISK_SECTOR_SIZE)
grub_util_error ("%s", _("non-sector-aligned data is found in the core file"));
if (block != first_block
&& (grub_target_to_host64 (prev->start)
+ grub_target_to_host16 (prev->len)) == sector)
{
grub_uint16_t t = grub_target_to_host16 (prev->len) + 1;
prev->len = grub_host_to_target16 (t);
}
else
{
block->start = grub_host_to_target64 (sector);
block->len = grub_host_to_target16 (1);
#ifdef GRUB_SETUP_BIOS
block->segment = grub_host_to_target16 (current_segment);
bl.current_segment =
GRUB_BOOT_I386_PC_KERNEL_SEG + (GRUB_DISK_SECTOR_SIZE >> 4);
#endif
block--;
if (block->len)
grub_util_error ("%s", _("the sectors of the core file are too fragmented"));
}
last_length = length;
#ifdef GRUB_SETUP_BIOS
current_segment += GRUB_DISK_SECTOR_SIZE >> 4;
#endif
}
bl.last_length = GRUB_DISK_SECTOR_SIZE;
/* Read the boot image by the OS service. */
boot_path = grub_util_get_path (dir, boot_file);
@ -283,9 +290,9 @@ setup (const char *dir,
core_img = grub_util_read_image (core_path);
/* Have FIRST_BLOCK to point to the first blocklist. */
first_block = (struct grub_boot_blocklist *) (core_img
+ GRUB_DISK_SECTOR_SIZE
- sizeof (*block));
bl.first_block = (struct grub_boot_blocklist *) (core_img
+ GRUB_DISK_SECTOR_SIZE
- sizeof (*bl.block));
grub_util_info ("root is `%s', dest is `%s'", root, dest);
grub_util_info ("Opening dest");
@ -511,38 +518,38 @@ setup (const char *dir,
assert (nsec <= maxsec);
/* Clean out the blocklists. */
block = first_block;
while (block->len)
bl.block = bl.first_block;
while (bl.block->len)
{
grub_memset (block, 0, sizeof (block));
grub_memset (bl.block, 0, sizeof (bl.block));
block--;
bl.block--;
if ((char *) block <= core_img)
if ((char *) bl.block <= core_img)
grub_util_error ("%s", _("no terminator in the core image"));
}
save_first_sector (sectors[0] + grub_partition_get_start (ctx.container),
0, GRUB_DISK_SECTOR_SIZE);
0, GRUB_DISK_SECTOR_SIZE, &first_sector);
block = first_block;
bl.block = bl.first_block;
for (i = 1; i < nsec; i++)
save_blocklists (sectors[i] + grub_partition_get_start (ctx.container),
0, GRUB_DISK_SECTOR_SIZE);
0, GRUB_DISK_SECTOR_SIZE, &bl);
/* Make sure that the last blocklist is a terminator. */
if (block == first_block)
block--;
block->start = 0;
block->len = 0;
block->segment = 0;
if (bl.block == bl.first_block)
bl.block--;
bl.block->start = 0;
bl.block->len = 0;
bl.block->segment = 0;
write_rootdev (root_dev, boot_img, first_sector);
core_img = realloc (core_img, nsec * GRUB_DISK_SECTOR_SIZE);
first_block = (struct grub_boot_blocklist *) (core_img
+ GRUB_DISK_SECTOR_SIZE
- sizeof (*block));
bl.first_block = (struct grub_boot_blocklist *) (core_img
+ GRUB_DISK_SECTOR_SIZE
- sizeof (*bl.block));
grub_size_t no_rs_length;
grub_set_unaligned32 ((core_img + GRUB_DISK_SECTOR_SIZE
@ -698,22 +705,22 @@ unable_to_embed:
#endif
/* Clean out the blocklists. */
block = first_block;
while (block->len)
bl.block = bl.first_block;
while (bl.block->len)
{
block->start = 0;
block->len = 0;
bl.block->start = 0;
bl.block->len = 0;
#ifdef GRUB_SETUP_BIOS
block->segment = 0;
bl.block->segment = 0;
#endif
block--;
bl.block--;
if ((char *) block <= core_img)
if ((char *) bl.block <= core_img)
grub_util_error ("%s", _("no terminator in the core image"));
}
block = first_block;
bl.block = bl.first_block;
#ifdef __linux__
{
@ -766,11 +773,11 @@ unable_to_embed:
if (i == 0 && j == 0)
save_first_sector (((grub_uint64_t) blk) * mul
+ container_start,
0, rest);
0, rest, &first_sector);
else
save_blocklists (((grub_uint64_t) blk) * mul + j
+ container_start,
0, rest);
0, rest, &bl);
}
}
}
@ -806,13 +813,14 @@ unable_to_embed:
>> GRUB_DISK_SECTOR_BITS)
+ j + container_start,
fie2->fm_extents[i].fe_physical
& (GRUB_DISK_SECTOR_SIZE - 1), len);
& (GRUB_DISK_SECTOR_SIZE - 1), len,
&first_sector);
else
save_blocklists ((fie2->fm_extents[i].fe_physical
>> GRUB_DISK_SECTOR_BITS)
+ j + container_start,
fie2->fm_extents[i].fe_physical
& (GRUB_DISK_SECTOR_SIZE - 1), len);
& (GRUB_DISK_SECTOR_SIZE - 1), len, &bl);
}
@ -830,12 +838,14 @@ unable_to_embed:
grub_util_error ("%s", grub_errmsg);
file->read_hook = save_first_sector;
file->read_hook_data = &first_sector;
if (grub_file_read (file, tmp_img, GRUB_DISK_SECTOR_SIZE)
!= GRUB_DISK_SECTOR_SIZE)
grub_util_error ("%s", _("failed to read the first sector of the core image"));
block = first_block;
bl.block = bl.first_block;
file->read_hook = save_blocklists;
file->read_hook_data = &bl;
if (grub_file_read (file, tmp_img, core_size - GRUB_DISK_SECTOR_SIZE)
!= (grub_ssize_t) core_size - GRUB_DISK_SECTOR_SIZE)
grub_util_error ("%s", _("failed to read the rest sectors of the core image"));
@ -913,11 +923,11 @@ unable_to_embed:
ptr += GRUB_DISK_SECTOR_SIZE;
len -= GRUB_DISK_SECTOR_SIZE;
block = first_block;
while (block->len)
bl.block = bl.first_block;
while (bl.block->len)
{
size_t cur = grub_target_to_host16 (block->len) << GRUB_DISK_SECTOR_BITS;
blk = grub_target_to_host64 (block->start);
size_t cur = grub_target_to_host16 (bl.block->len) << GRUB_DISK_SECTOR_BITS;
blk = grub_target_to_host64 (bl.block->start);
if (cur > len)
cur = len;
@ -932,9 +942,9 @@ unable_to_embed:
ptr += cur;
len -= cur;
block--;
bl.block--;
if ((char *) block <= core_img)
if ((char *) bl.block <= core_img)
grub_util_error ("%s", _("no terminator in the core image"));
}
core_dev->disk->partition = container;