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 3 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, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #include "includes.h"
  24 #include "../lib/util/dlinklist.h"
  25 #include "smbd/process_model.h"
  26
  27 /*
  28   a linked list of registered servers
  29 */
  30 static struct registered_server {
  31         struct registered_server *next, *prev;
  32         const char *service_name;
  33         struct service_details *service_details;
  34         void (*task_init)(struct task_server *);
  35 } *registered_servers;
  36
  37 /*
  38   register a server service.
  39 */
  40 NTSTATUS register_server_service(TALLOC_CTX *ctx,
  41                                 const char *name,
  42                                 void (*task_init) (struct task_server *),
  43                                 struct service_details *details)
  44 {
  45         struct registered_server *srv;
  46         srv = talloc(ctx, struct registered_server);
  47         NT_STATUS_HAVE_NO_MEMORY(srv);
  48         srv->service_name = name;
  49         srv->task_init = task_init;
  50         srv->service_details =
  51                 talloc_memdup(ctx, details, sizeof(struct service_details));
  52         NT_STATUS_HAVE_NO_MEMORY(srv->service_details);
  53         DLIST_ADD_END(registered_servers, srv);
  54         return NT_STATUS_OK;
  55 }
  56
  57
  58 /*
  59   initialise a server service
  60 */
  61 static NTSTATUS server_service_init(const char *name,
  62                                     struct tevent_context *event_context,
  63                                     struct loadparm_context *lp_ctx,
  64                                     const struct model_ops *model_ops,
  65                                     int from_parent_fd)
  66 {
  67         struct registered_server *srv;
  68         for (srv=registered_servers; srv; srv=srv->next) {
  69                 if (strcasecmp(name, srv->service_name) == 0) {
  70                         return task_server_startup(event_context, lp_ctx,
  71                                                    srv->service_name,
  72                                                    model_ops,
  73                                                    srv->task_init,
  74                                                    srv->service_details,
  75                                                    from_parent_fd);
  76                 }
  77         }
  78         return NT_STATUS_INVALID_SYSTEM_SERVICE;
  79 }
  80
  81
  82 /*
  83   startup all of our server services
  84 */
  85 NTSTATUS server_service_startup(struct tevent_context *event_ctx,
  86                                 struct loadparm_context *lp_ctx,
  87                                 const char *model, const char **server_services,
  88                                 int from_parent_fd)
  89 {
  90         int i;
  91         const struct model_ops *model_ops;
  92
  93         if (!server_services) {
  94                 DBG_ERR("server_service_startup: "
  95                         "no endpoint servers configured\n");
  96                 return NT_STATUS_INVALID_PARAMETER;
  97         }
  98
  99         model_ops = process_model_startup(model);
 100         if (!model_ops) {
 101                 DBG_ERR("process_model_startup('%s') failed\n", model);
 102                 return NT_STATUS_INTERNAL_ERROR;
 103         }
 104
 105         for (i=0;server_services[i];i++) {
 106                 NTSTATUS status;
 107
 108                 status = server_service_init(server_services[i], event_ctx,
 109                                              lp_ctx, model_ops, from_parent_fd);
 110                 if (!NT_STATUS_IS_OK(status)) {
 111                         DBG_ERR("Failed to start service '%s' - %s\n",
 112                                  server_services[i], nt_errstr(status));
 113                 }
 114                 NT_STATUS_NOT_OK_RETURN(status);
 115         }
 116
 117         return NT_STATUS_OK;
 118 }