fs: API changes enabling extra parameter to return size of type loff_t
The sandbox/ext4/fat/generic fs commands do not gracefully deal with files
greater than 2GB. Negative values are returned in such cases.
To handle this, the fs functions have been modified to take an additional
parameter of type "* loff_t" which is then populated. The return value
of the fs functions are used only for error conditions.
Signed-off-by: Suriyan Ramasami <suriyan.r@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
[trini: Update board/gdsys/p1022/controlcenterd-id.c,
drivers/fpga/zynqpl.c for changes]
Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/board/gdsys/p1022/controlcenterd-id.c b/board/gdsys/p1022/controlcenterd-id.c
index 317669b..11d075c 100644
--- a/board/gdsys/p1022/controlcenterd-id.c
+++ b/board/gdsys/p1022/controlcenterd-id.c
@@ -932,11 +932,12 @@
struct key_program header;
uint32_t crc;
uint8_t buf[12];
- int i;
+ loff_t i;
if (fs_set_blk_dev(ifname, dev_part_str, fs_type))
goto failure;
- i = fs_read(path, (ulong)buf, 0, 12);
+ if (fs_read(path, (ulong)buf, 0, 12, &i) < 0)
+ goto failure;
if (i < 12)
goto failure;
header.magic = get_unaligned_be32(buf);
@@ -951,8 +952,9 @@
goto failure;
if (fs_set_blk_dev(ifname, dev_part_str, fs_type))
goto failure;
- i = fs_read(path, (ulong)result, 0,
- sizeof(struct key_program) + header.code_size);
+ if (fs_read(path, (ulong)result, 0,
+ sizeof(struct key_program) + header.code_size, &i) < 0)
+ goto failure;
if (i <= 0)
goto failure;
*result = header;
@@ -1043,7 +1045,7 @@
const char *image_path = "/ccdm.itb";
char *mac_path = NULL;
ulong image_addr;
- size_t image_size;
+ loff_t image_size;
uint32_t err;
printf("CCDM S2\n");
@@ -1085,10 +1087,11 @@
image_addr = (ulong)get_image_location();
if (fs_set_blk_dev("mmc", mmcdev, FS_TYPE_EXT))
goto failure;
- image_size = fs_read(image_path, image_addr, 0, 0);
+ if (fs_read(image_path, image_addr, 0, 0, &image_size) < 0)
+ goto failure;
if (image_size <= 0)
goto failure;
- printf("CCDM image found on %s, %d bytes\n", mmcdev, image_size);
+ printf("CCDM image found on %s, %lld bytes\n", mmcdev, image_size);
hmac_blob = load_key_chunk("mmc", mmcdev, FS_TYPE_EXT, mac_path);
if (!hmac_blob) {
diff --git a/common/cmd_fs.c b/common/cmd_fs.c
index 6754340..0d9da11 100644
--- a/common/cmd_fs.c
+++ b/common/cmd_fs.c
@@ -51,6 +51,23 @@
" If 'pos' is 0 or omitted, the file is read from the start."
)
+static int do_save_wrapper(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
+{
+ return do_save(cmdtp, flag, argc, argv, FS_TYPE_ANY);
+}
+
+U_BOOT_CMD(
+ save, 7, 0, do_save_wrapper,
+ "save file to a filesystem",
+ "<interface> <dev[:part]> <addr> <filename> bytes [pos]\n"
+ " - Save binary file 'filename' to partition 'part' on device\n"
+ " type 'interface' instance 'dev' from addr 'addr' in memory.\n"
+ " 'bytes' gives the size to save in bytes and is mandatory.\n"
+ " 'pos' gives the file byte position to start writing to.\n"
+ " If 'pos' is 0 or omitted, the file is written from the start."
+)
+
static int do_ls_wrapper(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
diff --git a/drivers/fpga/zynqpl.c b/drivers/fpga/zynqpl.c
index 68fe0f3..6a74f89 100644
--- a/drivers/fpga/zynqpl.c
+++ b/drivers/fpga/zynqpl.c
@@ -406,8 +406,8 @@
unsigned long ts; /* Timestamp */
u32 isr_status, swap;
u32 partialbit = 0;
- u32 blocksize;
- u32 pos = 0;
+ loff_t blocksize, actread;
+ loff_t pos = 0;
int fstype;
char *interface, *dev_part, *filename;
@@ -420,7 +420,7 @@
if (fs_set_blk_dev(interface, dev_part, fstype))
return FPGA_FAIL;
- if (fs_read(filename, (u32) buf, pos, blocksize) < 0)
+ if (fs_read(filename, (u32) buf, pos, blocksize, &actread) < 0)
return FPGA_FAIL;
if (zynq_validate_bitstream(desc, buf, bsize, blocksize, &swap,
@@ -443,10 +443,10 @@
return FPGA_FAIL;
if (bsize > blocksize) {
- if (fs_read(filename, (u32) buf, pos, blocksize) < 0)
+ if (fs_read(filename, (u32) buf, pos, blocksize, &actread) < 0)
return FPGA_FAIL;
} else {
- if (fs_read(filename, (u32) buf, pos, bsize) < 0)
+ if (fs_read(filename, (u32) buf, pos, bsize, &actread) < 0)
return FPGA_FAIL;
}
} while (bsize > blocksize);
diff --git a/fs/ext4/ext4fs.c b/fs/ext4/ext4fs.c
index d82266f..943b5bc 100644
--- a/fs/ext4/ext4fs.c
+++ b/fs/ext4/ext4fs.c
@@ -184,16 +184,9 @@
return ret == 0;
}
-int ext4fs_size(const char *filename)
+int ext4fs_size(const char *filename, loff_t *size)
{
- loff_t size;
- int ret;
-
- ret = ext4fs_open(filename, &size);
- if (ret)
- return ret;
- else
- return size;
+ return ext4fs_open(filename, size);
}
int ext4fs_read(char *buf, loff_t len, loff_t *actread)
@@ -217,10 +210,10 @@
return 0;
}
-int ext4_read_file(const char *filename, void *buf, int offset, int len)
+int ext4_read_file(const char *filename, void *buf, loff_t offset, loff_t len,
+ loff_t *len_read)
{
loff_t file_len;
- loff_t len_read;
int ret;
if (offset != 0) {
@@ -237,12 +230,7 @@
if (len == 0)
len = file_len;
- ret = ext4fs_read(buf, len, &len_read);
-
- if (ret)
- return ret;
- else
- return len_read;
+ return ext4fs_read(buf, len, len_read);
}
int ext4fs_uuid(char *uuid_str)
diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index 83d9ce7..04a51db 100644
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -1248,16 +1248,9 @@
return ret == 0;
}
-int fat_size(const char *filename)
+int fat_size(const char *filename, loff_t *size)
{
- loff_t size;
- int ret;
-
- ret = do_fat_read_at(filename, 0, NULL, 0, LS_NO, 1, &size);
- if (ret)
- return ret;
- else
- return size;
+ return do_fat_read_at(filename, 0, NULL, 0, LS_NO, 1, size);
}
int file_fat_read_at(const char *filename, loff_t pos, void *buffer,
@@ -1280,18 +1273,16 @@
return actread;
}
-int fat_read_file(const char *filename, void *buf, int offset, int len)
+int fat_read_file(const char *filename, void *buf, loff_t offset, loff_t len,
+ loff_t *actread)
{
int ret;
- loff_t actread;
- ret = file_fat_read_at(filename, offset, buf, len, &actread);
- if (ret) {
+ ret = file_fat_read_at(filename, offset, buf, len, actread);
+ if (ret)
printf("** Unable to read file %s **\n", filename);
- return ret;
- }
- return actread;
+ return ret;
}
void fat_close(void)
diff --git a/fs/fs.c b/fs/fs.c
index e4ad6bc..3da7860 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -47,19 +47,21 @@
return 0;
}
-static inline int fs_size_unsupported(const char *filename)
+static inline int fs_size_unsupported(const char *filename, loff_t *size)
{
return -1;
}
static inline int fs_read_unsupported(const char *filename, void *buf,
- int offset, int len)
+ loff_t offset, loff_t len,
+ loff_t *actread)
{
return -1;
}
static inline int fs_write_unsupported(const char *filename, void *buf,
- int offset, int len)
+ loff_t offset, loff_t len,
+ loff_t *actwrite)
{
return -1;
}
@@ -88,9 +90,11 @@
disk_partition_t *fs_partition);
int (*ls)(const char *dirname);
int (*exists)(const char *filename);
- int (*size)(const char *filename);
- int (*read)(const char *filename, void *buf, int offset, int len);
- int (*write)(const char *filename, void *buf, int offset, int len);
+ int (*size)(const char *filename, loff_t *size);
+ int (*read)(const char *filename, void *buf, loff_t offset,
+ loff_t len, loff_t *actread);
+ int (*write)(const char *filename, void *buf, loff_t offset,
+ loff_t len, loff_t *actwrite);
void (*close)(void);
int (*uuid)(char *uuid_str);
};
@@ -106,7 +110,11 @@
.exists = fat_exists,
.size = fat_size,
.read = fat_read_file,
+#ifdef CONFIG_FAT_WRITE
+ .write = file_fat_write,
+#else
.write = fs_write_unsupported,
+#endif
.uuid = fs_uuid_unsupported,
},
#endif
@@ -120,7 +128,11 @@
.exists = ext4fs_exists,
.size = ext4fs_size,
.read = ext4_read_file,
+#ifdef CONFIG_CMD_EXT4_WRITE
+ .write = ext4_write_file,
+#else
.write = fs_write_unsupported,
+#endif
.uuid = ext4fs_uuid,
},
#endif
@@ -251,20 +263,21 @@
return ret;
}
-int fs_size(const char *filename)
+int fs_size(const char *filename, loff_t *size)
{
int ret;
struct fstype_info *info = fs_get_info(fs_type);
- ret = info->size(filename);
+ ret = info->size(filename, size);
fs_close();
return ret;
}
-int fs_read(const char *filename, ulong addr, int offset, int len)
+int fs_read(const char *filename, ulong addr, loff_t offset, loff_t len,
+ loff_t *actread)
{
struct fstype_info *info = fs_get_info(fs_type);
void *buf;
@@ -275,11 +288,11 @@
* means read the whole file.
*/
buf = map_sysmem(addr, len);
- ret = info->read(filename, buf, offset, len);
+ ret = info->read(filename, buf, offset, len, actread);
unmap_sysmem(buf);
/* If we requested a specific number of bytes, check we got it */
- if (ret >= 0 && len && ret != len) {
+ if (ret == 0 && len && *actread != len) {
printf("** Unable to read file %s **\n", filename);
ret = -1;
}
@@ -288,17 +301,18 @@
return ret;
}
-int fs_write(const char *filename, ulong addr, int offset, int len)
+int fs_write(const char *filename, ulong addr, loff_t offset, loff_t len,
+ loff_t *actwrite)
{
struct fstype_info *info = fs_get_info(fs_type);
void *buf;
int ret;
buf = map_sysmem(addr, len);
- ret = info->write(filename, buf, offset, len);
+ ret = info->write(filename, buf, offset, len, actwrite);
unmap_sysmem(buf);
- if (ret >= 0 && ret != len) {
+ if (ret < 0 && len != *actwrite) {
printf("** Unable to write file %s **\n", filename);
ret = -1;
}
@@ -310,7 +324,7 @@
int do_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
int fstype)
{
- int size;
+ loff_t size;
if (argc != 4)
return CMD_RET_USAGE;
@@ -318,8 +332,7 @@
if (fs_set_blk_dev(argv[1], argv[2], fstype))
return 1;
- size = fs_size(argv[3]);
- if (size < 0)
+ if (fs_size(argv[3], &size) < 0)
return CMD_RET_FAILURE;
setenv_hex("filesize", size);
@@ -333,9 +346,10 @@
unsigned long addr;
const char *addr_str;
const char *filename;
- unsigned long bytes;
- unsigned long pos;
- int len_read;
+ loff_t bytes;
+ loff_t pos;
+ loff_t len_read;
+ int ret;
unsigned long time;
char *ep;
@@ -377,12 +391,12 @@
pos = 0;
time = get_timer(0);
- len_read = fs_read(filename, addr, pos, bytes);
+ ret = fs_read(filename, addr, pos, bytes, &len_read);
time = get_timer(time);
- if (len_read <= 0)
+ if (ret < 0)
return 1;
- printf("%d bytes read in %lu ms", len_read, time);
+ printf("%llu bytes read in %lu ms", len_read, time);
if (time > 0) {
puts(" (");
print_size(len_read / time * 1000, "/s");
@@ -426,9 +440,10 @@
{
unsigned long addr;
const char *filename;
- unsigned long bytes;
- unsigned long pos;
- int len;
+ loff_t bytes;
+ loff_t pos;
+ loff_t len;
+ int ret;
unsigned long time;
if (argc < 6 || argc > 7)
@@ -437,8 +452,8 @@
if (fs_set_blk_dev(argv[1], argv[2], fstype))
return 1;
- filename = argv[3];
- addr = simple_strtoul(argv[4], NULL, 16);
+ addr = simple_strtoul(argv[3], NULL, 16);
+ filename = argv[4];
bytes = simple_strtoul(argv[5], NULL, 16);
if (argc >= 7)
pos = simple_strtoul(argv[6], NULL, 16);
@@ -446,12 +461,12 @@
pos = 0;
time = get_timer(0);
- len = fs_write(filename, addr, pos, bytes);
+ ret = fs_write(filename, addr, pos, bytes, &len);
time = get_timer(time);
- if (len <= 0)
+ if (ret < 0)
return 1;
- printf("%d bytes written in %lu ms", len, time);
+ printf("%llu bytes written in %lu ms", len, time);
if (time > 0) {
puts(" (");
print_size(len / time * 1000, "/s");
diff --git a/fs/sandbox/sandboxfs.c b/fs/sandbox/sandboxfs.c
index d11c087..a920bc0 100644
--- a/fs/sandbox/sandboxfs.c
+++ b/fs/sandbox/sandboxfs.c
@@ -103,46 +103,35 @@
return ret == 0;
}
-int sandbox_fs_size(const char *filename)
+int sandbox_fs_size(const char *filename, loff_t *size)
{
- loff_t size;
- int ret;
-
- ret = os_get_filesize(filename, &size);
- if (ret)
- return ret;
- else
- return size;
+ return os_get_filesize(filename, size);
}
void sandbox_fs_close(void)
{
}
-int fs_read_sandbox(const char *filename, void *buf, int offset, int len)
+int fs_read_sandbox(const char *filename, void *buf, loff_t offset, loff_t len,
+ loff_t *actread)
{
int ret;
- loff_t actread;
- ret = sandbox_fs_read_at(filename, offset, buf, len, &actread);
- if (ret) {
+ ret = sandbox_fs_read_at(filename, offset, buf, len, actread);
+ if (ret)
printf("** Unable to read file %s **\n", filename);
- return ret;
- }
- return actread;
+ return ret;
}
-int fs_write_sandbox(const char *filename, void *buf, int offset, int len)
+int fs_write_sandbox(const char *filename, void *buf, loff_t offset,
+ loff_t len, loff_t *actwrite)
{
int ret;
- loff_t actwrite;
- ret = sandbox_fs_write_at(filename, offset, buf, len, &actwrite);
- if (ret) {
+ ret = sandbox_fs_write_at(filename, offset, buf, len, actwrite);
+ if (ret)
printf("** Unable to write file %s **\n", filename);
- return ret;
- }
- return actwrite;
+ return ret;
}
diff --git a/include/ext4fs.h b/include/ext4fs.h
index 5c524a6..6888adc 100644
--- a/include/ext4fs.h
+++ b/include/ext4fs.h
@@ -138,14 +138,15 @@
void ext4fs_reinit_global(void);
int ext4fs_ls(const char *dirname);
int ext4fs_exists(const char *filename);
-int ext4fs_size(const char *filename);
+int ext4fs_size(const char *filename, loff_t *size);
void ext4fs_free_node(struct ext2fs_node *node, struct ext2fs_node *currroot);
int ext4fs_devread(lbaint_t sector, int byte_offset, int byte_len, char *buf);
void ext4fs_set_blk_dev(block_dev_desc_t *rbdd, disk_partition_t *info);
long int read_allocated_block(struct ext2_inode *inode, int fileblock);
int ext4fs_probe(block_dev_desc_t *fs_dev_desc,
disk_partition_t *fs_partition);
-int ext4_read_file(const char *filename, void *buf, int offset, int len);
+int ext4_read_file(const char *filename, void *buf, loff_t offset, loff_t len,
+ loff_t *actread);
int ext4_read_superblock(char *buffer);
int ext4fs_uuid(char *uuid_str);
#endif
diff --git a/include/fat.h b/include/fat.h
index 99c6429..3038bd7 100644
--- a/include/fat.h
+++ b/include/fat.h
@@ -198,7 +198,7 @@
int file_fat_detectfs(void);
int file_fat_ls(const char *dir);
int fat_exists(const char *filename);
-int fat_size(const char *filename);
+int fat_size(const char *filename, loff_t *size);
int file_fat_read_at(const char *filename, loff_t pos, void *buffer,
loff_t maxsize, loff_t *actread);
int file_fat_read(const char *filename, void *buffer, int maxsize);
@@ -208,6 +208,7 @@
int file_fat_write(const char *filename, void *buf, loff_t offset, loff_t len,
loff_t *actwrite);
-int fat_read_file(const char *filename, void *buf, int offset, int len);
+int fat_read_file(const char *filename, void *buf, loff_t offset, loff_t len,
+ loff_t *actread);
void fat_close(void);
#endif /* _FAT_H_ */
diff --git a/include/fs.h b/include/fs.h
index 491c60a..ffb6ce7 100644
--- a/include/fs.h
+++ b/include/fs.h
@@ -51,32 +51,41 @@
int fs_exists(const char *filename);
/*
- * Determine a file's size
+ * fs_size - Determine a file's size
*
- * Returns the file's size in bytes, or a negative value if it doesn't exist.
+ * @filename: Name of the file
+ * @size: Size of file
+ * @return 0 if ok with valid *size, negative on error
*/
-int fs_size(const char *filename);
+int fs_size(const char *filename, loff_t *size);
/*
- * Read file "filename" from the partition previously set by fs_set_blk_dev(),
- * to address "addr", starting at byte offset "offset", and reading "len"
- * bytes. "offset" may be 0 to read from the start of the file. "len" may be
- * 0 to read the entire file. Note that not all filesystem types support
- * either/both offset!=0 or len!=0.
+ * fs_read - Read file from the partition previously set by fs_set_blk_dev()
+ * Note that not all filesystem types support either/both offset!=0 or len!=0.
*
- * Returns number of bytes read on success. Returns <= 0 on error.
+ * @filename: Name of file to read from
+ * @addr: The address to read into
+ * @offset: The offset in file to read from
+ * @len: The number of bytes to read. Maybe 0 to read entire file
+ * @actread: Returns the actual number of bytes read
+ * @return 0 if ok with valid *actread, -1 on error conditions
*/
-int fs_read(const char *filename, ulong addr, int offset, int len);
+int fs_read(const char *filename, ulong addr, loff_t offset, loff_t len,
+ loff_t *actread);
/*
- * Write file "filename" to the partition previously set by fs_set_blk_dev(),
- * from address "addr", starting at byte offset "offset", and writing "len"
- * bytes. "offset" may be 0 to write to the start of the file. Note that not
- * all filesystem types support offset!=0.
+ * fs_write - Write file to the partition previously set by fs_set_blk_dev()
+ * Note that not all filesystem types support offset!=0.
*
- * Returns number of bytes read on success. Returns <= 0 on error.
+ * @filename: Name of file to read from
+ * @addr: The address to read into
+ * @offset: The offset in file to read from. Maybe 0 to write to start of file
+ * @len: The number of bytes to write
+ * @actwrite: Returns the actual number of bytes written
+ * @return 0 if ok with valid *actwrite, -1 on error conditions
*/
-int fs_write(const char *filename, ulong addr, int offset, int len);
+int fs_write(const char *filename, ulong addr, loff_t offset, loff_t len,
+ loff_t *actwrite);
/*
* Common implementation for various filesystem commands, optionally limited
diff --git a/include/sandboxfs.h b/include/sandboxfs.h
index 8e5da6b..4c7745d 100644
--- a/include/sandboxfs.h
+++ b/include/sandboxfs.h
@@ -28,8 +28,10 @@
void sandbox_fs_close(void);
int sandbox_fs_ls(const char *dirname);
int sandbox_fs_exists(const char *filename);
-int sandbox_fs_size(const char *filename);
-int fs_read_sandbox(const char *filename, void *buf, int offset, int len);
-int fs_write_sandbox(const char *filename, void *buf, int offset, int len);
+int sandbox_fs_size(const char *filename, loff_t *size);
+int fs_read_sandbox(const char *filename, void *buf, loff_t offset, loff_t len,
+ loff_t *actread);
+int fs_write_sandbox(const char *filename, void *buf, loff_t offset,
+ loff_t len, loff_t *actwrite);
#endif