[SCM] Samba Shared Repository - branch v3-3-test updated - release-3-2-0pre2-5260-gcb5c72c

[Karolin Seeger]

The branch, v3-3-test has been updated
       via  cb5c72c0a05a78ff1b86eb02cf5ecd3d7d69623d (commit)
      from  c66b3807a356655d1d4e351502cad939f4d1d101 (commit)

http://gitweb.samba.org/?p=samba.git;a=shortlog;h=v3-3-test


- Log -----------------------------------------------------------------
commit cb5c72c0a05a78ff1b86eb02cf5ecd3d7d69623d
Author: Stefan Metzmacher <me...@samba.org>
Date:   Fri May 8 14:33:49 2009 +0200

    s3:smbd: fix posix acls when setting an ACL without explicit ACE for the 
owner (bug#2346)
    
    The problem of bug #2346 remains for users exported by
    winbindd, because create_token_from_username() just fakes
    the token when the user is not in the local sam domain. This causes
    user_in_group_sid() to give totally wrong results.
    In uid_entry_in_group() we need to check if we already
    have the full unix token in the current_user struct.
    If so we should use the current_user unix token,
    instead of doing a very complex user_in_group_sid()
    which doesn't give reliable results anyway.
    
    metze
    (cherry picked from commit b79eff843be392f3065e912edca1434081d93c44)

-----------------------------------------------------------------------

Summary of changes:
 source/smbd/posix_acls.c |   21 ++++++++++++++++++---
 1 files changed, 18 insertions(+), 3 deletions(-)


Changeset truncated at 500 lines:

diff --git a/source/smbd/posix_acls.c b/source/smbd/posix_acls.c
index a319c58..93bc44b 100644
--- a/source/smbd/posix_acls.c
+++ b/source/smbd/posix_acls.c
@@ -1117,16 +1117,31 @@ static bool uid_entry_in_group( canon_ace *uid_ace, 
canon_ace *group_ace )
        if (sid_equal(&group_ace->trustee, &global_sid_World))
                return True;
 
-       /* Assume that the current user is in the current group (force group) */
+       /*
+        * if it's the current user, we already have the unix token
+        * and don't need to do the complex user_in_group_sid() call
+        */
+       if (uid_ace->unix_ug.uid == current_user.ut.uid) {
+               size_t i;
 
-       if (uid_ace->unix_ug.uid == current_user.ut.uid && 
group_ace->unix_ug.gid == current_user.ut.gid)
-               return True;
+               if (group_ace->unix_ug.gid == current_user.ut.gid) {
+                       return True;
+               }
+
+               for (i=0; i < current_user.ut.ngroups; i++) {
+                       if (group_ace->unix_ug.gid == 
current_user.ut.groups[i]) {
+                               return True;
+                       }
+               }
+       }
 
        /* u_name talloc'ed off tos. */
        u_name = uidtoname(uid_ace->unix_ug.uid);
        if (!u_name) {
                return False;
        }
+
+       /* notice that this is not reliable for users exported by winbindd! */
        return user_in_group_sid(u_name, &group_ace->trustee);
 }
 


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