[Dovecot] Dovecot 1.0.x and NFS-mounted mailstore quotas

[Mike Brudenell]

Greetings -

On 30 Jul 2007, at 10:05, Joseba Torre wrote:

Could you share it please? As previously reported, the "official" patch is not

working right now.

Aaaaaaaaaaagur.

mountpoint.c

  directory.

    cd src/lib
    gpatch <mountpoint.c




    cd src/plugins/quota


rpc-quota.tar.gz

  included in quota-fs.c by one of the patches below.

    gzcat rpc-quota.tar.gz | tar xvf -


  the other include files you need using rpcgen:

    cd rpc-quota
    gmake
    cd ..


quota-fs.c

  server.

    gpatch <quota-fs.c


quota.c

  in violation.]

    gpatch <quota.c

  You'll get output looking something like this:

    % gmake
    rpcgen -o rquota.h -h rquota.x
    cc  -O  -g  -DSUNOS5      -c -o quotatest.o quotatest.c
    rpcgen -o rquota_xdr.c -c rquota.x
    cc  -O  -g  -DSUNOS5      -c -o rquota_xdr.o rquota_xdr.c
    rpcgen -o rquota_clnt.c -l rquota.x
    cc  -O  -g  -DSUNOS5      -c -o rquota_clnt.o rquota_clnt.c



  rpcgen (I think!).



That should be everything: just recompile, install and hope!



    telnet imap.yourdomain.tld 143
    a01 login yourusername yourpassword
    a02 getquotaroot inbox
    ...output appears here...
    a03 logout

You should get output that looks something like this:

    a02 getquotaroot inbox
    * QUOTAROOT "inbox" "pmb1"
    * QUOTA "pmb1" (STORAGE 71260 102400)
    a02 OK Getquotaroot completed.

Then give it a go for real.





    touch src/plugins/quota/quota-fs.c

Cheers,
Mike B-)

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I'm attaching the patch files and a tar archive that comprise the changes I use to support reading quotas from NFS-mounted filestore. The patches are against the Dovecot 1.0.2 source code. The files within the rpc-quota.tar.gz archive in an old posting to a NetApp filers list; they form a sample means of querying the rquotad on the filer. It assumes you have the command "rpcgen" on your system to process the supplied rquota.x file and produce the associated include files. So it's not quite just applying the patches, but is very simple; just save the attached files somewhere and follow the steps below to apply them... This is a patch Timo put out on the list a week or so back following my problems skipping over filestores with the "ignore" options set. I've used this on our non-production server and have found it fine. You may need it if you are using the automounter, otherwise the NFS quota code may end up operating on the automount template point rather than the real mounted The remaining three files are all for the quota plugin directory, so start off by going there: This is a GZipped tar archive containing a directory to be unpacked here. The directory contains the rquota.x and Makefile from the sample code I found. It also includes my own rpc-quota.h and rpc-quota-code.c files: these get Now move down into the rpc-quota directory you've just unpacked and generate This is a patch that first includes the rpc-quota/rpc-quota.h file, which includes some header files and define the fetchnfsquotas() we'll be using. It also changes the code that attempts to get the quota from a locally mounted filesystem. If this wasn't possible (root->mount->fd == -1) instead of returning, call the code included from rpc-quota/rpc-quota-code.c to check for a ":" in the path and, if found, use an RPC to get the quota from the NFS Strictly speaking you don't need this patch, although I would suggest it. When preparing the quotaroot name this change checks if the name would be the empty string and, if it is, replaces it with the username obtained by calling getpwuid(getuid()). Without this patch Apple's "Mail" program recognises the server supports quotas (from the capability string), but does not show their values or draw the bar-chart. Basically it will only do so if the quotaroot name is non-empty. [The IMAP specification allows for empty -- "" -- quotaroot names, so Apple's Mail client is technically cc -o quotatest quotatest.o rquota_xdr.o rquota_clnt.o - lsocket -lnsl Don't worry unduly about the -DSUNOS5 macro being defined: that is for the quotatest test program, and doesn't seem to be for the files generated by You can test it by connecting to your IMAP server and giving a QUOTAROOT command: If you find it doesn't work don't give up hope yet. Instead rummage through your /usr/include directory tree looking for your own system's rquota.x file; then try it instead of the one I've included. Finally, remember that the files in the rpc-quota directory aren't included in Dovecot's own Makefiles. So if you change any of them you'll need to update the timestamp of the quota-fs.c plugin before make will notice the change and recompile it:

mountpoint.c
Description: Binary data

rpc-quota.tar.gz
Description: GNU Zip compressed data

quota-fs.c
Description: Binary data

quota.c
Description: Binary data