[mtools] floppyd: authentication failed device locked

[Mahesh M.]

Hello,

I am using floppyd for terminal servers (LTSP). After
using any defective floppy the floppyd daemon does not
clear the lock file and refuses further use of
floppies on the terminal:
Authentication failed, device locked.

After surfing the net i found that this is a common
problem faced many LTSP users.

I used the patch mtools-3.9.9-20030718.diff.gz but
this too fails when using commands like mdir on a
defective floppy.

The problem is that the lock is not cleaned up after
access of a defective floppy.

Solution: I got a temporary solution to the problem:
why not just ignore the lock.

Note: i am not sure how it will affect floppyd. But it
works for me. I also used the patch
mtools-3.9.9-20030718.diff.gz along with this. Any
comments are welcome.

The following are the modifications to floppyd.c

--- ../mtools-3.9.9/floppyd.c   2002-11-02
16:25:24.000000000 +0530
+++ floppyd.c   2004-12-23 11:33:40.000000000 +0530
@@ -446,14 +446,15 @@
        fd = open(XauFileName(), O_WRONLY | O_CREAT |
O_EXCL, 0600);
 
        /* Locked! */
-       if (fd == -1) {
+       /* MM 2004/12/23 Commenting out the following
ignores the lock */
+       /*if (fd == -1) {
                put_dword(reply, 0, AUTH_DEVLOCKED);
                send_packet(reply, sock);
                close(fd);
                destroyPacket(reply);
                destroyPacket(mit_cookie);
                return 0;
-       }
+       }*/
 
        ptr = template;
        ptr[4095] = 0;

The following are the modifications to floppyd_io.c
(perhaps this is not required?)

--- ../mtools-3.9.9/floppyd_io.c        2002-05-01
16:18:11.000000000 +0530
+++ floppyd_io.c        2004-12-23 11:42:23.000000000
+0530
@@ -113,8 +113,10 @@
 
        xcookie = (char *) safe_malloc(filelen+4);
        filelen = safePopenOut(command, xcookie+4,
filelen);
-       if(filelen < 1)
-               return AUTH_AUTHFAILED;
+
+       /*MM 2004/12/23 Perhaps commenting this will
ignore the lock ???*/
+       /*if(filelen < 1)
+               return AUTH_AUTHFAILED;*/
 
        /* Version negotiation */
        dword2byte(4,buf);

The best solution is to cleanup the lock on access of
any floppy defective or otherwise. I am not sure how
that can be done.

regards,
MM


                
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