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authorRoman Zippel <zippel@linux-m68k.org>2005-09-06 15:18:49 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-07 16:57:50 -0700
commit328b9227865026268261a24a97a578907b280415 (patch)
tree1e0cad4f422252a9c3add879cf847afbb9786cfe /fs/hfs/super.c
parent717dd80e999cdc84fb611decec5c5054d37c40d2 (diff)
downloadop-kernel-dev-328b9227865026268261a24a97a578907b280415.zip
op-kernel-dev-328b9227865026268261a24a97a578907b280415.tar.gz
[PATCH] hfs: NLS support
This adds NLS support to HFS. Using the kernel options iocharset and codepage it's possible to map the disk encoding to a local mapping. If these options are not used, it falls back to the old direct mapping. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/hfs/super.c')
-rw-r--r--fs/hfs/super.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index fd78414..c5074ae 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -17,6 +17,7 @@
#include <linux/blkdev.h>
#include <linux/mount.h>
#include <linux/init.h>
+#include <linux/nls.h>
#include <linux/parser.h>
#include <linux/seq_file.h>
#include <linux/vfs.h>
@@ -130,6 +131,10 @@ static int hfs_show_options(struct seq_file *seq, struct vfsmount *mnt)
seq_printf(seq, ",part=%u", sbi->part);
if (sbi->session >= 0)
seq_printf(seq, ",session=%u", sbi->session);
+ if (sbi->nls_disk)
+ seq_printf(seq, ",codepage=%s", sbi->nls_disk->charset);
+ if (sbi->nls_io)
+ seq_printf(seq, ",iocharset=%s", sbi->nls_io->charset);
if (sbi->s_quiet)
seq_printf(seq, ",quiet");
return 0;
@@ -163,6 +168,7 @@ static struct super_operations hfs_super_operations = {
enum {
opt_uid, opt_gid, opt_umask, opt_file_umask, opt_dir_umask,
opt_part, opt_session, opt_type, opt_creator, opt_quiet,
+ opt_codepage, opt_iocharset,
opt_err
};
@@ -177,6 +183,8 @@ static match_table_t tokens = {
{ opt_type, "type=%s" },
{ opt_creator, "creator=%s" },
{ opt_quiet, "quiet" },
+ { opt_codepage, "codepage=%s" },
+ { opt_iocharset, "iocharset=%s" },
{ opt_err, NULL }
};
@@ -282,11 +290,46 @@ static int parse_options(char *options, struct hfs_sb_info *hsb)
case opt_quiet:
hsb->s_quiet = 1;
break;
+ case opt_codepage:
+ if (hsb->nls_disk) {
+ printk("HFS+-fs: unable to change codepage\n");
+ return 0;
+ }
+ p = match_strdup(&args[0]);
+ hsb->nls_disk = load_nls(p);
+ if (!hsb->nls_disk) {
+ printk("HFS+-fs: unable to load codepage \"%s\"\n", p);
+ kfree(p);
+ return 0;
+ }
+ kfree(p);
+ break;
+ case opt_iocharset:
+ if (hsb->nls_io) {
+ printk("HFS: unable to change iocharset\n");
+ return 0;
+ }
+ p = match_strdup(&args[0]);
+ hsb->nls_io = load_nls(p);
+ if (!hsb->nls_io) {
+ printk("HFS: unable to load iocharset \"%s\"\n", p);
+ kfree(p);
+ return 0;
+ }
+ kfree(p);
+ break;
default:
return 0;
}
}
+ if (hsb->nls_disk && !hsb->nls_io) {
+ hsb->nls_io = load_nls_default();
+ if (!hsb->nls_io) {
+ printk("HFS: unable to load default iocharset\n");
+ return 0;
+ }
+ }
hsb->s_dir_umask &= 0777;
hsb->s_file_umask &= 0577;
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