Changes from SAMBA_2_2:

    source/rpc_server/srv_spoolss_nt.c
    source/rpc_server/srv_spoolss.c
    source/include/proto.h
        - correct checking of access_required in openprinterex as talked
          with John R. and Jerry.
          You can only do server stuff (adding printers, changing forms,
          ..) if you're root or if user is in printer admin list.
          Printers options are grayed if you don't have the
          PRINTER_ADMINISTER flag in the secdesc.
(This used to be commit f449d871bf0c385d8c57de2d795e1d7ef7f256f7)

2 files changed, 66 insertions, 52 deletions

diff --git a/source3/rpc_server/srv_spoolss.c b/source3/rpc_server/srv_spoolss.c
index 8d7d238ad0..8c06f16290 100755
--- a/source3/rpc_server/srv_spoolss.c
+++ b/source3/rpc_server/srv_spoolss.c
@@ -48,7 +48,7 @@ static BOOL api_spoolss_open_printer_ex(pipes_struct *p)
 	if (q_u.printername_ptr != 0)
 		printername = &q_u.printername;
 
-	r_u.status = _spoolss_open_printer_ex( printername,
+	r_u.status = _spoolss_open_printer_ex( printername, p,
 					       &q_u.printer_default,
 	                                       q_u.user_switch, q_u.user_ctr,
 	                                       &r_u.handle);
diff --git a/source3/rpc_server/srv_spoolss_nt.c b/source3/rpc_server/srv_spoolss_nt.c
index dabaca5d66..ff9dfabe69 100644
--- a/source3/rpc_server/srv_spoolss_nt.c
+++ b/source3/rpc_server/srv_spoolss_nt.c
@@ -658,12 +658,28 @@ static BOOL srv_spoolss_sendnotify(POLICY_HND *handle)
 	return True;
 }	
 
+/****************************************************************************
+ Return a user struct for a pipe user.
+****************************************************************************/
+
+static struct current_user *get_current_user(struct current_user *user, pipes_struct *p)
+{
+	if (p->ntlmssp_auth_validated) {
+		memcpy(user, &p->pipe_user, sizeof(struct current_user));
+	} else {
+		extern struct current_user current_user;
+		memcpy(user, &current_user, sizeof(struct current_user));
+	}
+
+	return user;
+}
+
 /********************************************************************
  * spoolss_open_printer
  *
  * called from the spoolss dispatcher
  ********************************************************************/
-uint32 _spoolss_open_printer_ex( const UNISTR2 *printername,
+uint32 _spoolss_open_printer_ex( const UNISTR2 *printername, pipes_struct *p,
 				 const PRINTER_DEFAULT *printer_default,
 				 uint32  user_switch, SPOOL_USER_CTR user_ctr,
 				 POLICY_HND *handle)
@@ -671,11 +687,10 @@ uint32 _spoolss_open_printer_ex( const UNISTR2 *printername,
 	uint32 result = NT_STATUS_NO_PROBLEMO;
 	fstring name;
 	int snum;
+	struct current_user user;
 	
-	if (printername == NULL) {
-		result = ERROR_INVALID_PRINTER_NAME;
-		goto done;
-	}
+	if (printername == NULL)
+		return ERROR_INVALID_PRINTER_NAME;
 
 	/* some sanity check because you can open a printer or a print server */
 	/* aka: \\server\printer or \\server */
@@ -683,10 +698,8 @@ uint32 _spoolss_open_printer_ex( const UNISTR2 *printername,
 
 	DEBUGADD(3,("checking name: %s\n",name));
 
-	if (!open_printer_hnd(handle, name)) {
-		result = ERROR_INVALID_PRINTER_NAME;
-		goto done;
-	}
+	if (!open_printer_hnd(handle, name))
+		return ERROR_INVALID_PRINTER_NAME;
 	
 /*
 	if (printer_default->datatype_ptr != NULL)
@@ -700,45 +713,62 @@ uint32 _spoolss_open_printer_ex( const UNISTR2 *printername,
 	
 	if (!set_printer_hnd_accesstype(handle, printer_default->access_required)) {
 		close_printer_handle(handle);
-		result = ERROR_ACCESS_DENIED;
-		goto done;
+		return ERROR_ACCESS_DENIED;
 	}
 		
-	/* Disallow MS AddPrinterWizard if parameter disables it. A Win2k
+	/*
+	   First case: the user is opening the print server:
+
+	   Disallow MS AddPrinterWizard if parameter disables it. A Win2k
 	   client 1st tries an OpenPrinterEx with access==0, MUST be allowed.
+
 	   Then both Win2k and WinNT clients try an OpenPrinterEx with
-	   SERVER_ALL_ACCESS, which we force to fail. Then they try
-	   OpenPrinterEx with SERVER_READ which we allow. This lets the
+	   SERVER_ALL_ACCESS, which we allow only if the user is root (uid=0)
+	   or if the user is listed in the smb.conf printer admin parameter.
+
+	   Then they try OpenPrinterEx with SERVER_READ which we allow. This lets the
 	   client view printer folder, but does not show the MSAPW.
 
 	   Note: this test needs code to check access rights here too. Jeremy
-	   could you look at this? */
+	   could you look at this?
+	   
+	   
+	   Second case: the user is opening a printer:
+	   NT doesn't let us connect to a printer if the connecting user
+	   doesn't have print permission.
 
-	if (handle_is_printserver(handle) &&
-	    !lp_ms_add_printer_wizard()) {
+	*/
+
+	get_current_user(&user, p);
+	
+	if (handle_is_printserver(handle) ) {
 		if (printer_default->access_required == 0) {
-			goto done;
-		}
-		else if (printer_default->access_required != (SERVER_READ)) {
-			close_printer_handle(handle);
-			result = ERROR_ACCESS_DENIED;
-			goto done;
+			return NT_STATUS_NO_PROBLEMO;
 		}
-	}
-
-	/* NT doesn't let us connect to a printer if the connecting user
-	   doesn't have print permission.  */
-
-	if (!handle_is_printserver(handle)) {
+		else if ( (printer_default->access_required & SERVER_ACCESS_ADMINISTER ) == SERVER_ACCESS_ADMINISTER) {
 
+			if (lp_ms_add_printer_wizard()) {
+				close_printer_handle(handle);
+				return ERROR_ACCESS_DENIED;
+			}
+			else if (user.uid == 0 || user_in_list(uidtoname(user.uid), lp_printer_admin(snum))) {
+				return NT_STATUS_NO_PROBLEMO;
+			} else {
+				close_printer_handle(handle);
+				return ERROR_ACCESS_DENIED;
+			}
+		}
+		else 
+			return NT_STATUS_NO_PROBLEMO;
+	} else {
+	
 		if (!get_printer_snum(handle, &snum))
 			return ERROR_INVALID_HANDLE;
 
-		if (!print_access_check(NULL, snum, PRINTER_ACCESS_USE)) {
+		if (!print_access_check(&user, snum, printer_default->access_required)) {
 			DEBUG(3, ("access DENIED for printer open\n"));
 			close_printer_handle(handle);
-			result = ERROR_ACCESS_DENIED;
-			goto done;
+			return ERROR_ACCESS_DENIED;
 		}
 
 		/*
@@ -753,13 +783,13 @@ uint32 _spoolss_open_printer_ex( const UNISTR2 *printername,
 			result = printer_write_default_dev( snum, printer_default);
 			if (result != 0) {
 				close_printer_handle(handle);
-				goto done;
+				return result;
 			}
 		}
+
+		return NT_STATUS_NO_PROBLEMO;
 	}
 
- done:
-	return result;
 }
 
 /****************************************************************************
@@ -3615,22 +3645,6 @@ uint32 _spoolss_endpageprinter(POLICY_HND *handle)
 	return NT_STATUS_NO_PROBLEMO;
 }
 
-/****************************************************************************
- Return a user struct for a pipe user.
-****************************************************************************/
-
-static struct current_user *get_current_user(struct current_user *user, pipes_struct *p)
-{
-	if (p->ntlmssp_auth_validated) {
-		memcpy(user, &p->pipe_user, sizeof(struct current_user));
-	} else {
-		extern struct current_user current_user;
-		memcpy(user, &current_user, sizeof(struct current_user));
-	}
-
-	return user;
-}
-
 /********************************************************************
  * api_spoolss_getprinter
  * called from the spoolss dispatcher