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02-18-2008, 08:27 AM
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 Re: more re: nfs openbsd setattr bug On Tue, 28 Mar 2006, Han Boetes wrote: > Otto Moerbeek wrote: > > > ~% ./test > > > ./test[2]: cannot create /mnt/nfs/nowplaying: Operation not permitted > > > > As which user was the command done? > > My own user. > > > I first though a truncate of a file was failing (if you look at > > the log you'll see the setattr sz 0x0, but I made a litle test > > case that just runs fine. > > > > Also, it is strange your client report _creation_ failure. It > > should not create a file in this case, AFAIK. > > > > Can you modify your test script so it cleary reports if the > > redirect is failing or the touch. > > > Also, The permissions of the parent dir are interesting. Please > > include ls -n info, and id info for your users; I like to see > > the numbers. > > ~% cat test > #!/bin/sh > echo uid: $(id -u) user: $USER > ls -nd /mnt/nfs/nowplaying /mnt/nfs/ > echo -n 'TEST: echo foo > /mnt/nfs/nowplaying RESULT: ' > echo foo > /mnt/nfs/nowplaying > echo > ls -nd /mnt/nfs/nowplaying > echo -n 'TEST: touch /mnt/nfs/nowplaying RESULT: ' > touch /mnt/nfs/nowplaying > echo > ls -nd /mnt/nfs/nowplaying > > > Look at the filesizes! This is getting stranger and stranger... You can take a look at the server side, there could be some file attributes caching going on that is blurring the view. But I think I'll bite the bullet and install a linux client to experiment myself. That's probably quicker than mailing back and forth. Thanks so far, -Otto > > ~% ./test > uid: 1000 user: han > drwxr-xr-x 24 1000 3000 1536 2006-03-28 12:05 /mnt/nfs/ > -rw-rw-r-- 1 1006 3000 4 2006-03-28 12:10 /mnt/nfs/nowplaying > TEST: echo foo > /mnt/nfs/nowplaying RESULT: ./test[5]: cannot create /mnt/nfs/nowplaying: Operation not permitted > > -rw-rw-r-- 1 1006 3000 4 2006-03-28 12:10 /mnt/nfs/nowplaying > TEST: touch /mnt/nfs/nowplaying RESULT: > -rw-rw-r-- 1 1006 3000 0 2006-03-28 12:13 /mnt/nfs/nowplaying > ~% sudo -u bascuppen ./test > uid: 1006 user: bascuppen > drwxr-xr-x 24 1000 3000 1536 2006-03-28 12:05 /mnt/nfs/ > -rw-rw-r-- 1 1006 3000 0 2006-03-28 12:13 /mnt/nfs/nowplaying > TEST: echo foo > /mnt/nfs/nowplaying RESULT: > -rw-rw-r-- 1 1006 3000 4 2006-03-28 12:13 /mnt/nfs/nowplaying > TEST: touch /mnt/nfs/nowplaying RESULT: > -rw-rw-r-- 1 1006 3000 4 2006-03-28 12:13 /mnt/nfs/nowplaying > > > Now I change the ownership of the file, keep looking at that filesize. > > ~% ./test > uid: 1000 user: han > drwxr-xr-x 24 1000 3000 1536 2006-03-28 12:05 /mnt/nfs/ > -rw-rw-r-- 1 1000 3000 4 2006-03-28 12:13 /mnt/nfs/nowplaying > TEST: echo foo > /mnt/nfs/nowplaying RESULT: > -rw-rw-r-- 1 1000 3000 4 2006-03-28 12:14 /mnt/nfs/nowplaying > TEST: touch /mnt/nfs/nowplaying RESULT: > -rw-rw-r-- 1 1000 3000 4 2006-03-28 12:14 /mnt/nfs/nowplaying > ~% sudo -u bascuppen ./test > uid: 1006 user: bascuppen > drwxr-xr-x 24 1000 3000 1536 2006-03-28 12:05 /mnt/nfs/ > -rw-rw-r-- 1 1000 3000 4 2006-03-28 12:14 /mnt/nfs/nowplaying > TEST: echo foo > /mnt/nfs/nowplaying RESULT: ./test[5]: cannot create /mnt/nfs/nowplaying: Operation not permitted > > -rw-rw-r-- 1 1000 3000 4 2006-03-28 12:14 /mnt/nfs/nowplaying > TEST: touch /mnt/nfs/nowplaying RESULT: > -rw-rw-r-- 1 1000 3000 0 2006-03-28 12:14 /mnt/nfs/nowplaying > > > Also, I like to know if you can edit the file using an editor. > > Note: I used mg on linux, which creates backups like it should, by > making a copy and not by moving and creating a new file. > > > ~% ls -nd /mnt/nfs/nowplaying > -rw-rw-r-- 1 1000 3000 4 mrt 28 12:20 /mnt/nfs/nowplaying > ~% sudo -u bascuppen mg /mnt/nfs/nowplaying > ;; writing failed, file untouched. > ~% ls -nd /mnt/nfs/nowplaying > -rw-rw-r-- 1 1000 3000 4 mrt 28 12:20 /mnt/nfs/nowplaying > > Change of owner: > > ~% ls -nd /mnt/nfs/nowplaying > -rw-rw-r-- 1 1006 3000 0 mrt 28 12:20 /mnt/nfs/nowplaying > ~% sudo -u bascuppen mg /mnt/nfs/nowplaying > ~% ls -nd /mnt/nfs/nowplaying > -rw-rw-r-- 1 1006 3000 12 mrt 28 12:22 /mnt/nfs/nowplaying > ~% mg /mnt/nfs/nowplaying > ;; writing failed, file cleared. > ~% ls -nd /mnt/nfs/nowplaying > -rw-rw-r-- 1 1006 3000 0 mrt 28 12:22 /mnt/nfs/nowplaying > > Which made me thing it was something the editor did, so I checked > the inode. And the inode remains the same. > > > > Oh and please make sure you really ARE running the diff, I > > almost get the feeling you're not... > > Most certainly because with the unpatched version I cannot touch. > > ~% l /bsd /usr/src/sys/arch/i386/compile/GENERIC/bsd > -rwxr-xr-x 1 root wheel 5.3M Mar 28 10:14 /bsd > -rwxr-xr-x 1 han wsrc 5.3M Mar 28 10:13 /usr/src/sys/arch/i386/compile/GENERIC/bsd > > > > # Han > -- > \_/ A woman forgives the audacity of which her beauty > m00h ( _ ) -(_)- has prompted us to be guilty. -- LeSage > \ ~O o~__ / \ > (._.)_|\ > ________|_|_|_________      |
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