samba - Mar 2002 - disabling offline caching from samba

I'm preparing to roll out a bunch of win XP clients and and am running 
down all the quirks
that come up in the application log on my test box.

1) AutoEnrollement fails - samba is not an active directory so this 
makes sense
it must be disabled by editing the group policy
with gpedit.msc
computer configuration->windows settings -> security settings -> public
key policies -> autoenrollment settings
must be set to "do not enroll ..."

but I'm not sure what to do with  the various warnings about offline 
caching being enabled on the roaming profile share...

I've disabled offline caching by unchecking "enable offline files"
in
control panel-> folder options -> offline files
(now thats a logical place for this setting... only took me about 3 
hours to find it)
Aparently that is not sufficient since I still get the warnings in the 
log...

Is there some way to make samba not allow offline caching ?
(it seems that this is done at the share level on an XP server)

is this a result of the same problem that  Stuart Haas just reported 
(where offline caching stopped working)?

thanks!

brad

Brad,

Here's a patch (against 2.2.3a) that will let you set a per-share
server-side policy for client-side offline caching. Setting "csc policy
disable" will disable csc on your roaming profiles shares. The default is
"manual".

This patch will probably be in the next Samba release.

Cheers,
Shirish

diff -ur source.orig/param/loadparm.c source/param/loadparm.c
--- source.orig/param/loadparm.c Mon Apr  1 18:20:03 2002
+++ source/param/loadparm.c Thu Apr  4 14:32:29 2002
@@ -351,6 +351,7 @@
  int iDefaultCase;
  int iPrinting;
  int iOplockContentionLimit;
+ int iCSCPolicy;
  BOOL bAlternatePerm;
  BOOL bPreexecClose;
  BOOL bRootpreexecClose;
@@ -468,6 +469,7 @@
  CASE_LOWER,  /* iDefaultCase */
  DEFAULT_PRINTING, /* iPrinting */
  2,   /* iOplockContentionLimit */
+ 0,                      /* iCSCPolicy */
  False,   /* bAlternatePerm */
  False,   /* bPreexecClose */
  False,   /* bRootpreexecClose */
@@ -637,6 +639,19 @@
  {-1, NULL}
 };

+   /* Client-side offline caching policy types */
+#define CSC_POLICY_MANUAL 0
+#define CSC_POLICY_DOCUMENTS 1
+#define CSC_POLICY_PROGRAMS 2
+#define CSC_POLICY_DISABLE 3
+
+static struct enum_list enum_csc_policy[] = {
+ {CSC_POLICY_MANUAL, "manual"},
+ {CSC_POLICY_DOCUMENTS, "documents"},
+ {CSC_POLICY_PROGRAMS, "programs"},
+ {CSC_POLICY_DISABLE, "disable"}
+};
+
 /*
    Do you want session setups at user level security with a invalid
    password to be rejected or allowed in as guest? WinNT rejects them
@@ -972,6 +987,7 @@
  {"level2 oplocks", P_BOOL, P_LOCAL, &sDefault.bLevel2OpLocks,
NULL, NULL,
FLAG_SHARE | FLAG_GLOBAL},
  {"oplock break wait time", P_INTEGER, P_GLOBAL,
&Globals.oplock_break_wait_time, NULL, NULL, FLAG_GLOBAL},
  {"oplock contention limit", P_INTEGER, P_LOCAL,
&sDefault.iOplockContentionLimit, NULL, NULL, FLAG_SHARE | FLAG_GLOBAL},
+ {"csc policy", P_ENUM, P_LOCAL, &sDefault.iCSCPolicy, NULL,
enum_csc_policy, FLAG_SHARE | FLAG_GLOBAL},
  {"posix locking", P_BOOL, P_LOCAL, &sDefault.bPosixLocking,
NULL, NULL,
FLAG_SHARE | FLAG_GLOBAL},
  {"strict locking", P_BOOL, P_LOCAL, &sDefault.bStrictLocking,
NULL, NULL,
FLAG_SHARE | FLAG_GLOBAL},
  {"share modes", P_BOOL, P_LOCAL,  &sDefault.bShareModes, NULL,
NULL,
FLAG_SHARE|FLAG_GLOBAL},
@@ -1731,6 +1747,7 @@
 FN_LOCAL_INTEGER(lp_maxprintjobs, iMaxPrintJobs)
 FN_LOCAL_INTEGER(lp_printing, iPrinting)
 FN_LOCAL_INTEGER(lp_oplock_contention_limit, iOplockContentionLimit)
+FN_LOCAL_INTEGER(lp_csc_policy, iCSCPolicy)
 FN_LOCAL_INTEGER(lp_write_cache_size, iWriteCacheSize)
 FN_LOCAL_CHAR(lp_magicchar, magic_char)
 FN_GLOBAL_INTEGER(lp_winbind_cache_time, &Globals.winbind_cache_time)
diff -ur source.orig/smbd/reply.c source/smbd/reply.c
--- source.orig/smbd/reply.c Mon Apr  1 18:20:07 2002
+++ source/smbd/reply.c Thu Apr  4 14:50:01 2002
@@ -385,7 +385,8 @@

   /* what does setting this bit do? It is set by NT4 and
      may affect the ability to autorun mounted cdroms */
-  SSVAL(outbuf, smb_vwv2, SMB_SUPPORT_SEARCH_BITS);
+  SSVAL(outbuf, smb_vwv2, SMB_SUPPORT_SEARCH_BITS |
+        (lp_csc_policy(SNUM(conn)) << 2));

   init_dfsroot(conn, inbuf, outbuf);
  }

-----Original Message-----
Subject:  [Samba] how to disable offline caching on the server
From:     "Bradley W. Langhorst" <bwlang@unh.edu>
Date:     2002-03-20 20:53:17

I've just read
http://support.microsoft.com/search/preview.aspx?scid=kb;en-us;Q287566
which states

To work around this behavior, create a separate share to store the
users' profiles, and then disable the cache option on that share. (The
cache option can only be disabled on shares that are hosted by computers
that run Windows 2000.)

Is there really no way to disable offline caching from the server side?

brad