[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>

1 files changed, 18 insertions, 17 deletions

diff --git a/fs/hfs/catalog.c b/fs/hfs/catalog.c
index 65dedefcabfc..2fcd679f0238 100644
--- a/fs/hfs/catalog.c
+++ b/fs/hfs/catalog.c
@@ -20,12 +20,12 @@
  *
  * Given the ID of the parent and the name build a search key.
  */
-void hfs_cat_build_key(btree_key *key, u32 parent, struct qstr *name)
+void hfs_cat_build_key(struct super_block *sb, btree_key *key, u32 parent, struct qstr *name)
 {
         key->cat.reserved = 0;
         key->cat.ParID = cpu_to_be32(parent);
         if (name) {
-                hfs_triv2mac(&key->cat.CName, name);
+                hfs_asc2mac(sb, &key->cat.CName, name);
                 key->key_len = 6 + key->cat.CName.len;
         } else {
                 memset(&key->cat.CName, 0, sizeof(struct hfs_name));
@@ -62,13 +62,14 @@ static int hfs_cat_build_record(hfs_cat_rec *rec, u32 cnid, struct inode *inode)
         }
 }
 
-static int hfs_cat_build_thread(hfs_cat_rec *rec, int type,
+static int hfs_cat_build_thread(struct super_block *sb,
+                                hfs_cat_rec *rec, int type,
                                 u32 parentid, struct qstr *name)
 {
         rec->type = type;
         memset(rec->thread.reserved, 0, sizeof(rec->thread.reserved));
         rec->thread.ParID = cpu_to_be32(parentid);
-        hfs_triv2mac(&rec->thread.CName, name);
+        hfs_asc2mac(sb, &rec->thread.CName, name);
         return sizeof(struct hfs_cat_thread);
 }
 
@@ -93,8 +94,8 @@ int hfs_cat_create(u32 cnid, struct inode *dir, struct qstr *str, struct inode *
         sb = dir->i_sb;
         hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
 
-        hfs_cat_build_key(fd.search_key, cnid, NULL);
-        entry_size = hfs_cat_build_thread(&entry, S_ISDIR(inode->i_mode) ?
+        hfs_cat_build_key(sb, fd.search_key, cnid, NULL);
+        entry_size = hfs_cat_build_thread(sb, &entry, S_ISDIR(inode->i_mode) ?
                         HFS_CDR_THD : HFS_CDR_FTH,
                         dir->i_ino, str);
         err = hfs_brec_find(&fd);
@@ -107,7 +108,7 @@ int hfs_cat_create(u32 cnid, struct inode *dir, struct qstr *str, struct inode *
         if (err)
                 goto err2;
 
-        hfs_cat_build_key(fd.search_key, dir->i_ino, str);
+        hfs_cat_build_key(sb, fd.search_key, dir->i_ino, str);
         entry_size = hfs_cat_build_record(&entry, cnid, inode);
         err = hfs_brec_find(&fd);
         if (err != -ENOENT) {
@@ -127,7 +128,7 @@ int hfs_cat_create(u32 cnid, struct inode *dir, struct qstr *str, struct inode *
         return 0;
 
 err1:
-        hfs_cat_build_key(fd.search_key, cnid, NULL);
+        hfs_cat_build_key(sb, fd.search_key, cnid, NULL);
         if (!hfs_brec_find(&fd))
                 hfs_brec_remove(&fd);
 err2:
@@ -176,7 +177,7 @@ int hfs_cat_find_brec(struct super_block *sb, u32 cnid,
         hfs_cat_rec rec;
         int res, len, type;
 
-        hfs_cat_build_key(fd->search_key, cnid, NULL);
+        hfs_cat_build_key(sb, fd->search_key, cnid, NULL);
         res = hfs_brec_read(fd, &rec, sizeof(rec));
         if (res)
                 return res;
@@ -211,7 +212,7 @@ int hfs_cat_delete(u32 cnid, struct inode *dir, struct qstr *str)
         sb = dir->i_sb;
         hfs_find_init(HFS_SB(sb)->cat_tree, &fd);
 
-        hfs_cat_build_key(fd.search_key, dir->i_ino, str);
+        hfs_cat_build_key(sb, fd.search_key, dir->i_ino, str);
         res = hfs_brec_find(&fd);
         if (res)
                 goto out;
@@ -239,7 +240,7 @@ int hfs_cat_delete(u32 cnid, struct inode *dir, struct qstr *str)
         if (res)
                 goto out;
 
-        hfs_cat_build_key(fd.search_key, cnid, NULL);
+        hfs_cat_build_key(sb, fd.search_key, cnid, NULL);
         res = hfs_brec_find(&fd);
         if (!res) {
                 res = hfs_brec_remove(&fd);
@@ -280,7 +281,7 @@ int hfs_cat_move(u32 cnid, struct inode *src_dir, struct qstr *src_name,
         dst_fd = src_fd;
 
         /* find the old dir entry and read the data */
-        hfs_cat_build_key(src_fd.search_key, src_dir->i_ino, src_name);
+        hfs_cat_build_key(sb, src_fd.search_key, src_dir->i_ino, src_name);
         err = hfs_brec_find(&src_fd);
         if (err)
                 goto out;
@@ -289,7 +290,7 @@ int hfs_cat_move(u32 cnid, struct inode *src_dir, struct qstr *src_name,
                             src_fd.entrylength);
 
         /* create new dir entry with the data from the old entry */
-        hfs_cat_build_key(dst_fd.search_key, dst_dir->i_ino, dst_name);
+        hfs_cat_build_key(sb, dst_fd.search_key, dst_dir->i_ino, dst_name);
         err = hfs_brec_find(&dst_fd);
         if (err != -ENOENT) {
                 if (!err)
@@ -305,7 +306,7 @@ int hfs_cat_move(u32 cnid, struct inode *src_dir, struct qstr *src_name,
         mark_inode_dirty(dst_dir);
 
         /* finally remove the old entry */
-        hfs_cat_build_key(src_fd.search_key, src_dir->i_ino, src_name);
+        hfs_cat_build_key(sb, src_fd.search_key, src_dir->i_ino, src_name);
         err = hfs_brec_find(&src_fd);
         if (err)
                 goto out;
@@ -321,7 +322,7 @@ int hfs_cat_move(u32 cnid, struct inode *src_dir, struct qstr *src_name,
                 goto out;
 
         /* remove old thread entry */
-        hfs_cat_build_key(src_fd.search_key, cnid, NULL);
+        hfs_cat_build_key(sb, src_fd.search_key, cnid, NULL);
         err = hfs_brec_find(&src_fd);
         if (err)
                 goto out;
@@ -330,8 +331,8 @@ int hfs_cat_move(u32 cnid, struct inode *src_dir, struct qstr *src_name,
                 goto out;
 
         /* create new thread entry */
-        hfs_cat_build_key(dst_fd.search_key, cnid, NULL);
-        entry_size = hfs_cat_build_thread(&entry, type == HFS_CDR_FIL ? HFS_CDR_FTH : HFS_CDR_THD,
+        hfs_cat_build_key(sb, dst_fd.search_key, cnid, NULL);
+        entry_size = hfs_cat_build_thread(sb, &entry, type == HFS_CDR_FIL ? HFS_CDR_FTH : HFS_CDR_THD,
                                         dst_dir->i_ino, dst_name);
         err = hfs_brec_find(&dst_fd);
         if (err != -ENOENT) {