[PATCH] cifs: Add new mount parm mapchars

For handling seven special characters that shells use for filenames.

This first parts implements conversions from Unicode. 

Signed-off-by: Steve French
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 814e709ca0ca..3d036bf689d8 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -72,6 +72,7 @@ struct smb_vol {
         unsigned no_xattr:1;   /* set if xattr (EA) support should be disabled*/
         unsigned server_ino:1; /* use inode numbers from server ie UniqueId */
         unsigned direct_io:1;
+        unsigned remap:1;   /* set to remap seven reserved chars in filenames */
         unsigned int rsize;
         unsigned int wsize;
         unsigned int sockopt;
@@ -771,6 +772,10 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol)
                         vol->noperm = 0;
                 } else if (strnicmp(data, "noperm", 6) == 0) {
                         vol->noperm = 1;
+                } else if (strnicmp(data, "mapchars", 8) == 0) {
+                        vol->remap = 1;
+                } else if (strnicmp(data, "nomapchars", 10) == 0) {
+                        vol->remap = 0;
                 } else if (strnicmp(data, "setuids", 7) == 0) {
                         vol->setuids = 1;
                 } else if (strnicmp(data, "nosetuids", 9) == 0) {
@@ -1421,6 +1426,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
                         cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_SET_UID;
                 if(volume_info.server_ino)
                         cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_SERVER_INUM;
+                if(volume_info.remap)
+                        cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_MAP_SPECIAL_CHR;
                 if(volume_info.no_xattr)
                         cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_NO_XATTR;
                 if(volume_info.direct_io) {