Re: chmod messes up permissions on hfs filesystem
Date: Wed Nov 03 2004 - 22:52:46 EST
On Wed, Nov 03, 2004 at 05:00:35PM +0100, Roman Zippel wrote:
> On Tue, 2 Nov 2004, Horms wrote:
> > Thanks for the patch, though the behaviour of the umask still seems
> > rather odd. I would like to offer an updated patch which I believe
> > makes the umask behave in the expected way. It also ensures
> > that the write_lock bit is read from/written to disk correctly.
> You apply the umask before updating the write bit, which is incorrect.
I tried to account for that, but perhaps I missed.
> > @@ -196,6 +197,11 @@ struct inode *hfs_new_inode(struct inode
> > HFS_I(inode)->cached_blocks = 0;
> > memset(HFS_I(inode)->first_extents, 0, sizeof(hfs_extent_rec));
> > memset(HFS_I(inode)->cached_extents, 0, sizeof(hfs_extent_rec));
> > + inode->i_mode = (mode & ~0777) | (~hsb->s_file_umask & 0777);
> > + if (mode & S_IWUSR)
> > + inode->i_mode |= S_IWUGO;
> > + else
> > + inode->i_mode &= ~S_IWUGO;
> > }
> > insert_inode_hash(inode);
> > mark_inode_dirty(inode);
> Thanks, for reminding me to fix hfs_new_inode here, but the above applies.
> > ===== fs/hfs/super.c 1.32 vs edited =====
> > --- 1.32/fs/hfs/super.c 2004-10-26 05:06:47 +09:00
> > +++ edited/fs/hfs/super.c 2004-11-01 20:01:54 +09:00
> > @@ -149,8 +149,8 @@ static int parse_options(char *options,
> > /* initialize the sb with defaults */
> > hsb->s_uid = current->uid;
> > hsb->s_gid = current->gid;
> > - hsb->s_file_umask = 0644;
> > - hsb->s_dir_umask = 0755;
> > + hsb->s_file_umask = 0111;
> > + hsb->s_dir_umask = 0000;
> > hsb->s_type = hsb->s_creator = cpu_to_be32(0x3f3f3f3f); /* == '????' */
> > hsb->s_quiet = 0;
> > hsb->part = -1;
> This may be closer to the mac default, where everyone can access anything,
> but I'd rather keep a safe default.
> Below is my updated patch.
Thanks, I will give it a spin and get back to you.
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