SERVER SERVICE code
- Copyright (C) Andrew Tridgell 2003
+ Copyright (C) Andrew Tridgell 2003-2005
Copyright (C) Stefan (metze) Metzmacher 2004
This program is free software; you can redistribute it and/or modify
*/
#include "includes.h"
-
-struct server_context *server_service_startup(const char *model)
-{
- int i;
- const char **server_services = lp_server_services();
- TALLOC_CTX *mem_ctx;
- struct server_context *srv_ctx;
- const struct model_ops *model_ops;
-
- if (!server_services) {
- DEBUG(0,("process_model_startup: no endpoint servers configured\n"));
- return NULL;
- }
-
- model_ops = process_model_startup(model);
- if (!model_ops) {
- DEBUG(0,("process_model_startup('%s') failed\n", model));
- return NULL;
- }
-
- mem_ctx = talloc_init("server_context");
- if (!mem_ctx) {
- DEBUG(0,("talloc_init(server_context) failed\n"));
- return NULL;
- }
-
- srv_ctx = talloc_p(mem_ctx, struct server_context);
- if (!srv_ctx) {
- DEBUG(0,("talloc_p(mem_ctx, struct server_context) failed\n"));
- return NULL;
- }
-
- ZERO_STRUCTP(srv_ctx);
- srv_ctx->mem_ctx = mem_ctx;
-
- srv_ctx->events = event_context_init();
- if (!srv_ctx->events) {
- DEBUG(0,("event_context_init() failed\n"));
- return NULL;
- }
-
-
- for (i=0;server_services[i];i++) {
- TALLOC_CTX *mem_ctx2;
- const struct server_service_ops *service_ops;
- struct server_service *service;
-
- service_ops = server_service_byname(server_services[i]);
- if (!service_ops) {
- DEBUG(0,("process_model_startup: failed to find server service = '%s'\n", server_services[i]));
- return NULL;
- }
-
- mem_ctx2 = talloc_init("server_service");
-
- service = talloc_p(mem_ctx2, struct server_service);
- if (!service) {
- DEBUG(0,("talloc_p(mem_ctx, struct server_service) failed\n"));
- return NULL;
- }
-
- ZERO_STRUCTP(service);
- service->mem_ctx = mem_ctx2;
- service->ops = service_ops;
- service->model_ops = model_ops;
- service->srv_ctx = srv_ctx;
-
- /* TODO: service_init() should return a result */
- service->ops->service_init(service, model_ops);
- }
-
- return srv_ctx;
-}
+#include "dlinklist.h"
+#include "process_model.h"
/*
- setup a listen stream socket
- if you pass *port == 0, then a port > 1024 is used
- */
-struct server_socket *service_setup_socket(struct server_service *service,
- const struct model_ops *model_ops,
- const char *sock_addr,
- uint16_t *port)
-{
- NTSTATUS status;
- struct server_socket *srv_sock;
- struct socket_context *socket_ctx;
- struct fd_event fde;
- int i;
-
- if (*port == 0) {
- for (i=SERVER_TCP_LOW_PORT;i<= SERVER_TCP_HIGH_PORT;i++) {
- status = socket_create("ipv4", SOCKET_TYPE_STREAM, &socket_ctx, 0);
- if (NT_STATUS_IS_OK(status)) {
- *port = i;
- break;
- }
- }
- } else {
- status = socket_create("ipv4", SOCKET_TYPE_STREAM, &socket_ctx, 0);
- }
-
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("Failed to open socket on %s:%u - %s\n",
- sock_addr, *port, nt_errstr(status)));
- return NULL;
- }
-
- /* ready to listen */
- status = socket_set_option(socket_ctx, "SO_KEEPALIVE SO_REUSEADDR=1", NULL);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("socket_set_option(socket_ctx, SO_KEEPALIVE, NULL): %s\n",
- nt_errstr(status)));
- socket_destroy(socket_ctx);
- return NULL;
- }
- status = socket_set_option(socket_ctx, lp_socket_options(), NULL);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("socket_set_option(socket_ctx, lp_socket_options(), NULL): %s\n",
- nt_errstr(status)));
- socket_destroy(socket_ctx);
- return NULL;
- }
-
- /* TODO: set socket ACL's here when they're implemented */
-
- status = socket_listen(socket_ctx, sock_addr, *port, SERVER_LISTEN_BACKLOG, 0);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("Failed to listen on %s:%u - %s\n",
- sock_addr, *port, nt_errstr(status)));
- socket_destroy(socket_ctx);
- return NULL;
- }
-
- srv_sock = talloc_p(NULL, struct server_socket);
- if (!srv_sock) {
- DEBUG(0,("talloc_p(mem_ctx, struct server_socket) failed\n"));
- socket_destroy(socket_ctx);
- return NULL;
- }
-
- /* we are only interested in read events on the listen socket */
- fde.fd = socket_get_fd(socket_ctx);
- fde.flags = EVENT_FD_READ;
- fde.private = srv_sock;
- fde.handler = model_ops->accept_connection;
-
- ZERO_STRUCTP(srv_sock);
- srv_sock->mem_ctx = srv_sock;
- srv_sock->service = service;
- srv_sock->socket = socket_ctx;
- srv_sock->event.ctx = service->srv_ctx->events;
- srv_sock->event.fde = event_add_fd(srv_sock->event.ctx, &fde);
- if (!srv_sock->event.fde) {
- DEBUG(0,("event_add_fd(srv_sock->event.ctx, &fde) failed\n"));
- socket_destroy(socket_ctx);
- return NULL;
- }
-
- DLIST_ADD(service->socket_list, srv_sock);
-
- return srv_sock;
-}
-
-struct server_connection *server_setup_connection(struct event_context *ev, struct server_socket *server_socket, struct socket_context *sock, time_t t)
-{
- struct fd_event fde;
- struct timed_event idle;
- struct server_connection *srv_conn;
-
- srv_conn = talloc_p(NULL, struct server_connection);
- if (!srv_conn) {
- DEBUG(0,("talloc_p(mem_ctx, struct server_service_connection) failed\n"));
- return NULL;
- }
-
- ZERO_STRUCTP(srv_conn);
- srv_conn->mem_ctx = srv_conn;
-
- fde.private = srv_conn;
- fde.fd = socket_get_fd(sock);
- fde.flags = EVENT_FD_READ;
- fde.handler = server_io_handler;
-
- idle.private = srv_conn;
- idle.next_event = t + SERVER_DEFAULT_IDLE_TIME;
- idle.handler = server_idle_handler;
-
- srv_conn->event.ctx = ev;
- srv_conn->event.fde = &fde;
- srv_conn->event.idle = &idle;
- srv_conn->event.idle_time = SERVER_DEFAULT_IDLE_TIME;
-
- srv_conn->server_socket = server_socket;
- srv_conn->service = server_socket->service;
- srv_conn->socket = sock;
-
- /* create a smb server context and add it to out event
- handling */
- server_socket->service->ops->accept_connection(srv_conn);
-
- /* accpect_connection() of the service may changed idle.next_event */
- srv_conn->event.fde = event_add_fd(ev,&fde);
- srv_conn->event.idle = event_add_timed(ev,&idle);
-
- if (!socket_check_access(sock, "smbd", lp_hostsallow(-1), lp_hostsdeny(-1))) {
- server_terminate_connection(srv_conn, "denied by access rules");
- return NULL;
- }
-
- return srv_conn;
-}
+ a linked list of registered servers
+*/
+static struct registered_server {
+ struct registered_server *next, *prev;
+ const char *service_name;
+ NTSTATUS (*service_init)(struct event_context *, const struct model_ops *);
+} *registered_servers;
/*
- close the socket and shutdown a server_context
+ register a server service.
*/
-void server_terminate_connection(struct server_connection *srv_conn, const char *reason)
-{
- DEBUG(0,("server_terminate_connection\n"));
- srv_conn->service->model_ops->terminate_connection(srv_conn, reason);
-}
-
-void server_destroy_connection(struct server_connection *srv_conn)
+NTSTATUS register_server_service(const char *name,
+ NTSTATUS (*service_init)(struct event_context *, const struct model_ops *))
{
- socket_destroy(srv_conn->socket);
-
- event_remove_fd(srv_conn->event.ctx, srv_conn->event.fde);
- srv_conn->event.fde = NULL;
- event_remove_timed(srv_conn->event.ctx, srv_conn->event.idle);
- srv_conn->event.idle = NULL;
-
- talloc_destroy(srv_conn->mem_ctx);
+ struct registered_server *srv;
+ srv = talloc(talloc_autofree_context(), struct registered_server);
+ NT_STATUS_HAVE_NO_MEMORY(srv);
+ srv->service_name = name;
+ srv->service_init = service_init;
+ DLIST_ADD_END(registered_servers, srv, struct registered_server *);
+ return NT_STATUS_OK;
}
-void server_io_handler(struct event_context *ev, struct fd_event *fde, time_t t, uint16_t flags)
-{
- struct server_connection *conn = fde->private;
-
- conn->event.idle->next_event = t + conn->event.idle_time;
- if (flags & EVENT_FD_WRITE) {
- conn->service->ops->send_handler(conn, t, flags);
- return;
- }
-
- if (flags & EVENT_FD_READ) {
- conn->service->ops->recv_handler(conn, t, flags);
- }
-
-}
-
-void server_idle_handler(struct event_context *ev, struct timed_event *idle, time_t t)
-{
- struct server_connection *conn = idle->private;
-
- conn->event.idle->next_event = t + conn->event.idle_time;
-
- conn->service->ops->idle_handler(conn,t);
-}
/*
- return the operations structure for a named backend of the specified type
+ initialise a server service
*/
-const struct server_service_ops *server_service_byname(const char *name)
+static NTSTATUS server_service_init(const char *name,
+ struct event_context *event_ctx,
+ const struct model_ops *model_ops)
{
- if (strcmp("smb",name)==0) {
- return smbsrv_get_ops();
- }
- if (strcmp("rpc",name)==0) {
- return dcesrv_get_ops();
- }
- if (strcmp("ldap",name)==0) {
- return ldapsrv_get_ops();
+ struct registered_server *srv;
+ for (srv=registered_servers; srv; srv=srv->next) {
+ if (strcasecmp(name, srv->service_name) == 0) {
+ return srv->service_init(event_ctx, model_ops);
+ }
}
- return NULL;
+ return NT_STATUS_INVALID_SYSTEM_SERVICE;
}
-static NTSTATUS register_server_service_ops(const void *_ops)
-{
- return NT_STATUS_NOT_IMPLEMENTED;
-}
/*
- initialise the SERVER SERVICE subsystem
+ startup all of our server services
*/
-BOOL server_service_init(void)
+NTSTATUS server_service_startup(struct event_context *event_ctx,
+ const char *model, const char **server_services)
{
- NTSTATUS status;
+ 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;
+ }
- status = register_subsystem("service", register_server_service_ops);
- if (!NT_STATUS_IS_OK(status)) {
- return False;
+ 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;
}
- /* FIXME: Perhaps panic if a basic endpoint server, such as EPMAPER, fails to initialise? */
- static_init_server_service;
+ for (i=0;server_services[i];i++) {
+ NTSTATUS status;
+
+ status = server_service_init(server_services[i], event_ctx, model_ops);
+ NT_STATUS_NOT_OK_RETURN(status);
+ }
- DEBUG(3,("SERVER SERVICE subsystem version %d initialised\n", SERVER_SERVICE_VERSION));
- return True;
+ return NT_STATUS_OK;
}
git.samba.org / ira / wip.git / blobdiff