source4/samba/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 "samba/process_model.h"
  26 #include "lib/util/samba_modules.h"
  27
  28 #undef strcasecmp
  29
  30 /*
  31   a linked list of registered servers
  32 */
  33 static struct registered_server {
  34         struct registered_server *next, *prev;
  35         const char *service_name;
  36         const struct service_details *service_details;
  37 } *registered_servers;
  38
  39 /*
  40   register a server service.
  41 */
  42 NTSTATUS register_server_service(TALLOC_CTX *ctx,
  43                                 const char *name,
  44                                 const struct service_details *details)
  45 {
  46         struct registered_server *srv;
  47         srv = talloc(ctx, struct registered_server);
  48         NT_STATUS_HAVE_NO_MEMORY(srv);
  49         srv->service_name = name;
  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->service_details,
  74                                                    from_parent_fd);
  75                 }
  76         }
  77         return NT_STATUS_INVALID_SYSTEM_SERVICE;
  78 }
  79
  80
  81 /*
  82   startup all of our server services
  83 */
  84 NTSTATUS server_service_startup(struct tevent_context *event_ctx,
  85                                 struct loadparm_context *lp_ctx,
  86                                 const char *model, const char **server_services,
  87                                 int from_parent_fd)
  88 {
  89         int i;
  90         const struct model_ops *model_ops;
  91
  92         if (!server_services) {
  93                 DBG_ERR("server_service_startup: "
  94                         "no endpoint servers configured\n");
  95                 return NT_STATUS_INVALID_PARAMETER;
  96         }
  97
  98         model_ops = process_model_startup(model);
  99         if (!model_ops) {
 100                 DBG_ERR("process_model_startup('%s') failed\n", model);
 101                 return NT_STATUS_INTERNAL_ERROR;
 102         }
 103
 104         for (i=0;server_services[i];i++) {
 105                 NTSTATUS status;
 106
 107                 status = server_service_init(server_services[i], event_ctx,
 108                                              lp_ctx, model_ops, from_parent_fd);
 109                 if (!NT_STATUS_IS_OK(status)) {
 110                         DBG_ERR("Failed to start service '%s' - %s\n",
 111                                  server_services[i], nt_errstr(status));
 112                 }
 113                 NT_STATUS_NOT_OK_RETURN(status);
 114         }
 115
 116         return NT_STATUS_OK;
 117 }
 118
 119 _PUBLIC_ NTSTATUS samba_service_init(void)
 120 {
 121 #define _MODULE_PROTO(init) extern NTSTATUS init(TALLOC_CTX *);
 122         STATIC_service_MODULES_PROTO;
 123         init_module_fn static_init[] = { STATIC_service_MODULES };
 124         init_module_fn *shared_init = NULL;
 125         static bool initialised;
 126
 127         if (initialised) {
 128                 return NT_STATUS_OK;
 129         }
 130         initialised = true;
 131
 132         shared_init = load_samba_modules(NULL, "service");
 133
 134         run_init_functions(NULL, static_init);
 135         run_init_functions(NULL, shared_init);
 136
 137         TALLOC_FREE(shared_init);
 138
 139         return NT_STATUS_OK;
 140 }