source4/smbd/service.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    SERVER SERVICE code
   5
   6    Copyright (C) Andrew Tridgell 2003-2005
   7    Copyright (C) Stefan (metze) Metzmacher      2004
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 */
  23
  24 #include "includes.h"
  25 #include "lib/util/dlinklist.h"
  26 #include "smbd/process_model.h"
  27
  28 /*
  29   a linked list of registered servers
  30 */
  31 static struct registered_server {
  32         struct registered_server *next, *prev;
  33         const char *service_name;
  34         NTSTATUS (*service_init)(struct event_context *, const struct model_ops *);
  35 } *registered_servers;
  36
  37 /*
  38   register a server service.
  39 */
  40 NTSTATUS register_server_service(const char *name,
  41                                  NTSTATUS (*service_init)(struct event_context *, const struct model_ops *))
  42 {
  43         struct registered_server *srv;
  44         srv = talloc(talloc_autofree_context(), struct registered_server);
  45         NT_STATUS_HAVE_NO_MEMORY(srv);
  46         srv->service_name = name;
  47         srv->service_init = service_init;
  48         DLIST_ADD_END(registered_servers, srv, struct registered_server *);
  49         return NT_STATUS_OK;
  50 }
  51
  52
  53 /*
  54   initialise a server service
  55 */
  56 static NTSTATUS server_service_init(const char *name,
  57                                     struct event_context *event_ctx,
  58                                     const struct model_ops *model_ops)
  59 {
  60         struct registered_server *srv;
  61         for (srv=registered_servers; srv; srv=srv->next) {
  62                 if (strcasecmp(name, srv->service_name) == 0) {
  63                         return srv->service_init(event_ctx, model_ops);
  64                 }
  65         }
  66         return NT_STATUS_INVALID_SYSTEM_SERVICE;
  67 }
  68
  69
  70 /*
  71   startup all of our server services
  72 */
  73 NTSTATUS server_service_startup(struct event_context *event_ctx,
  74                                 const char *model, const char **server_services)
  75 {
  76         int i;
  77         const struct model_ops *model_ops;
  78
  79         if (!server_services) {
  80                 DEBUG(0,("server_service_startup: no endpoint servers configured\n"));
  81                 return NT_STATUS_INVALID_PARAMETER;
  82         }
  83
  84         model_ops = process_model_startup(event_ctx, model);
  85         if (!model_ops) {
  86                 DEBUG(0,("process_model_startup('%s') failed\n", model));
  87                 return NT_STATUS_INTERNAL_ERROR;
  88         }
  89
  90         for (i=0;server_services[i];i++) {
  91                 NTSTATUS status;
  92
  93                 status = server_service_init(server_services[i], event_ctx, model_ops);
  94                 if (!NT_STATUS_IS_OK(status)) {
  95                         DEBUG(0,("Failed to start service '%s' - %s\n",
  96                                  server_services[i], nt_errstr(status)));
  97                 }
  98                 NT_STATUS_NOT_OK_RETURN(status);
  99         }
 100
 101         return NT_STATUS_OK;
 102 }