source: vendor/3.5.9/source4/smbd/service.c

/* 
   Unix SMB/CIFS implementation.

   SERVER SERVICE code

   Copyright (C) Andrew Tridgell 2003-2005
   Copyright (C) Stefan (metze) Metzmacher      2004
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "includes.h"
#include "../lib/util/dlinklist.h"
#include "smbd/process_model.h"

/*
  a linked list of registered servers
*/
static struct registered_server {
        struct registered_server *next, *prev;
        const char *service_name;
        void (*task_init)(struct task_server *);
} *registered_servers;

/*
  register a server service. 
*/
NTSTATUS register_server_service(const char *name,
                                 void (*task_init)(struct task_server *))
{
        struct registered_server *srv;
        srv = talloc(talloc_autofree_context(), struct registered_server);
        NT_STATUS_HAVE_NO_MEMORY(srv);
        srv->service_name = name;
        srv->task_init = task_init;
        DLIST_ADD_END(registered_servers, srv, struct registered_server *);
        return NT_STATUS_OK;
}


/*
  initialise a server service
*/
static NTSTATUS server_service_init(const char *name,
                                    struct tevent_context *event_context,
                                    struct loadparm_context *lp_ctx,
                                    const struct model_ops *model_ops)
{
        struct registered_server *srv;
        for (srv=registered_servers; srv; srv=srv->next) {
                if (strcasecmp(name, srv->service_name) == 0) {
                        return task_server_startup(event_context, lp_ctx, srv->service_name,
                                                   model_ops, srv->task_init);
                }
        }
        return NT_STATUS_INVALID_SYSTEM_SERVICE;
}


/*
  startup all of our server services
*/
NTSTATUS server_service_startup(struct tevent_context *event_ctx, 
                                struct loadparm_context *lp_ctx,
                                const char *model, const char **server_services)
{
        int i;
        const struct model_ops *model_ops;

        if (!server_services) {
                DEBUG(0,("server_service_startup: no endpoint servers configured\n"));
                return NT_STATUS_INVALID_PARAMETER;
        }

        model_ops = process_model_startup(event_ctx, model);
        if (!model_ops) {
                DEBUG(0,("process_model_startup('%s') failed\n", model));
                return NT_STATUS_INTERNAL_ERROR;
        }

        for (i=0;server_services[i];i++) {
                NTSTATUS status;

                status = server_service_init(server_services[i], event_ctx, lp_ctx, model_ops);
                if (!NT_STATUS_IS_OK(status)) {
                        DEBUG(0,("Failed to start service '%s' - %s\n", 
                                 server_services[i], nt_errstr(status)));
                }
                NT_STATUS_NOT_OK_RETURN(status);
        }

        return NT_STATUS_OK;
}