/*
Unix SMB/CIFS implementation.
+
process model: process (1 process handles all client connections)
+
Copyright (C) Andrew Tridgell 2003
Copyright (C) James J Myers 2003 <myersjj@samba.org>
Copyright (C) Stefan (metze) Metzmacher 2004
*/
#include "includes.h"
+#include "smb_server/smb_server.h"
+
+/* For sepecifiying event context to GSSAPI below */
+#include "heimdal/lib/gssapi/gssapi_locl.h"
/*
called when the process model is selected
*/
-static void single_start_server(void)
+static void single_model_init(struct event_context *ev)
{
- smbd_process_init();
+ /* Hack to ensure that GSSAPI uses the right event context */
+ gssapi_krb5_init_ev(ev);
}
/*
- called when a listening socket becomes readable
+ called when a listening socket becomes readable.
*/
-static void single_accept_connection(struct event_context *ev, struct fd_event *srv_fde, time_t t, uint16_t flags)
+static void single_accept_connection(struct event_context *ev,
+ struct socket_context *sock,
+ void (*new_conn)(struct event_context *, struct socket_context *,
+ uint32_t , void *),
+ void *private)
{
- int accepted_fd;
- struct sockaddr addr;
- socklen_t in_addrlen = sizeof(addr);
- struct fd_event fde;
- struct timed_event idle;
- struct server_socket *server_socket = srv_fde->private;
- struct server_connection *conn;
- TALLOC_CTX *mem_ctx;
+ NTSTATUS status;
+ struct socket_context *sock2;
/* accept an incoming connection. */
- accepted_fd = accept(srv_fde->fd,&addr,&in_addrlen);
- if (accepted_fd == -1) {
- DEBUG(0,("accept_connection_single: accept: %s\n",
- strerror(errno)));
- return;
- }
-
- mem_ctx = talloc_init("server_service_connection");
- if (!mem_ctx) {
- DEBUG(0,("talloc_init(server_service_connection) failed\n"));
- return;
- }
-
- conn = talloc_p(mem_ctx, struct server_connection);
- if (!conn) {
- DEBUG(0,("talloc_p(mem_ctx, struct server_service_connection) failed\n"));
- talloc_destroy(mem_ctx);
- return;
- }
-
- ZERO_STRUCTP(conn);
- conn->mem_ctx = mem_ctx;
-
- fde.private = conn;
- fde.fd = accepted_fd;
- fde.flags = EVENT_FD_READ;
- fde.handler = server_io_handler;
-
- idle.private = conn;
- idle.next_event = t + 300;
- idle.handler = server_idle_handler;
-
- conn->event.ctx = ev;
- conn->event.fde = &fde;
- conn->event.idle = &idle;
- conn->event.idle_time = 300;
-
- conn->server_socket = server_socket;
- conn->service = server_socket->service;
-
- /* TODO: we need a generic socket subsystem */
- conn->socket = talloc_p(conn->mem_ctx, struct socket_context);
- if (!conn->socket) {
- DEBUG(0,("talloc_p(conn->mem_ctx, struct socket_context) failed\n"));
- talloc_destroy(mem_ctx);
+ status = socket_accept(sock, &sock2);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("accept_connection_single: accept: %s\n", nt_errstr(status)));
+ /* this looks strange, but is correct. We need to
+ throttle things until the system clears enough
+ resources to handle this new socket. If we don't
+ then we will spin filling the log and causing more
+ problems. We don't panic as this is probably a
+ temporary resource constraint */
+ sleep(1);
return;
}
- conn->socket->private_data = NULL;
- conn->socket->ops = NULL;
- conn->socket->client_addr = NULL;
- conn->socket->pkt_count = 0;
- conn->socket->fde = conn->event.fde;
- /* create a smb server context and add it to out event
- handling */
- server_socket->service->ops->accept_connection(conn);
+ talloc_steal(private, sock);
- /* accpect_connection() of the service may changed idle.next_event */
- conn->event.fde = event_add_fd(ev,&fde);
- conn->event.idle = event_add_timed(ev,&idle);
-
- conn->socket->fde = conn->event.fde;
-
- DLIST_ADD(server_socket->connection_list,conn);
-
- /* return to event handling */
- return;
+ new_conn(ev, sock2, socket_get_fd(sock2), private);
}
-
-
-/* called when a SMB connection goes down */
-static void single_terminate_connection(struct server_connection *conn, const char *reason)
+/*
+ called to startup a new task
+*/
+static void single_new_task(struct event_context *ev,
+ void (*new_task)(struct event_context *, uint32_t, void *),
+ void *private)
{
- DEBUG(0,("single_terminate_connection: reason[%s]\n",reason));
- conn->service->ops->close_connection(conn,reason);
+ static uint32_t taskid = 0x10000000;
+ new_task(ev, taskid++, private);
}
-static int single_get_id(struct smbsrv_request *req)
-{
- return (int)req->smb_conn->pid;
-}
-static void single_exit_server(struct server_context *srv_ctx, const char *reason)
+/* called when a task goes down */
+static void single_terminate(struct event_context *ev, const char *reason)
{
- DEBUG(1,("single_exit_server: reason[%s]\n",reason));
+ DEBUG(2,("single_terminate: reason[%s]\n",reason));
}
+static const struct model_ops single_ops = {
+ .name = "single",
+ .model_init = single_model_init,
+ .new_task = single_new_task,
+ .accept_connection = single_accept_connection,
+ .terminate = single_terminate,
+};
+
/*
- initialise the single process model, registering ourselves with the process model subsystem
+ initialise the single process model, registering ourselves with the
+ process model subsystem
*/
NTSTATUS process_model_single_init(void)
{
- NTSTATUS ret;
- struct model_ops ops;
-
- ZERO_STRUCT(ops);
-
- /* fill in our name */
- ops.name = "single";
-
- /* fill in all the operations */
- ops.model_startup = single_start_server;
- ops.accept_connection = single_accept_connection;
- ops.terminate_connection = single_terminate_connection;
- ops.exit_server = single_exit_server;
- ops.get_id = single_get_id;
-
- /* register ourselves with the PROCESS_MODEL subsystem. */
- ret = register_backend("process_model", &ops);
- if (!NT_STATUS_IS_OK(ret)) {
- DEBUG(0,("Failed to register process_model 'single'!\n"));
- return ret;
- }
-
- return ret;
+ return register_process_model(&single_ops);
}
git.samba.org / kai / samba.git / blobdiff