#include "includes.h"
#include "process_model.h"
-#include "events.h"
+#include "lib/events/events.h"
+#include "lib/socket/socket.h"
+#include "smbd/service.h"
#include "smbd/service_stream.h"
+#include "lib/messaging/irpc.h"
/* the range of ports to try for dcerpc over tcp endpoints */
#define SERVER_TCP_LOW_PORT 1024
{
struct event_context *event_ctx = srv_conn->event.ctx;
const struct model_ops *model_ops = srv_conn->model_ops;
+
+ if (!reason) reason = "unknwon reason";
+
+ srv_conn->terminate = reason;
+
+ if (srv_conn->processing) {
+ /*
+ * if we're currently inside the stream_io_handler(),
+ * deferr the termination to the end of stream_io_hendler()
+ *
+ * and we don't want to read or write to the connection...
+ */
+ event_set_fd_flags(srv_conn->event.fde, 0);
+ return;
+ }
+
+ talloc_free(srv_conn->event.fde);
+ srv_conn->event.fde = NULL;
talloc_free(srv_conn);
model_ops->terminate(event_ctx, reason);
}
the select loop has indicated that a stream is ready for IO
*/
static void stream_io_handler(struct event_context *ev, struct fd_event *fde,
- struct timeval t, uint16_t flags)
+ uint16_t flags, void *private)
{
- struct stream_connection *conn = talloc_get_type(fde->private,
+ struct stream_connection *conn = talloc_get_type(private,
struct stream_connection);
+
+ conn->processing = True;
if (flags & EVENT_FD_WRITE) {
- conn->ops->send_handler(conn, t, flags);
- return;
+ conn->ops->send_handler(conn, flags);
+ } else if (flags & EVENT_FD_READ) {
+ conn->ops->recv_handler(conn, flags);
}
+ conn->processing = False;
- if (flags & EVENT_FD_READ) {
- conn->ops->recv_handler(conn, t, flags);
+ if (conn->terminate) {
+ stream_terminate_connection(conn, conn->terminate);
}
}
+/*
+ this creates a stream_connection from an already existing connection,
+ used for protocols, where a client connection needs to switched into
+ a server connection
+*/
+NTSTATUS stream_new_connection_merge(struct event_context *ev,
+ const struct model_ops *model_ops,
+ struct socket_context *sock,
+ const struct stream_server_ops *stream_ops,
+ struct messaging_context *msg_ctx,
+ void *private_data,
+ struct stream_connection **_srv_conn)
+{
+ struct stream_connection *srv_conn;
+
+ srv_conn = talloc_zero(ev, struct stream_connection);
+ NT_STATUS_HAVE_NO_MEMORY(srv_conn);
+
+ talloc_steal(srv_conn, sock);
+
+ srv_conn->private = private_data;
+ srv_conn->model_ops = model_ops;
+ srv_conn->socket = sock;
+ srv_conn->server_id = 0;
+ srv_conn->ops = stream_ops;
+ srv_conn->msg_ctx = msg_ctx;
+ srv_conn->event.ctx = ev;
+ srv_conn->event.fde = event_add_fd(ev, srv_conn, socket_get_fd(sock),
+ EVENT_FD_READ,
+ stream_io_handler, srv_conn);
+ *_srv_conn = srv_conn;
+ return NT_STATUS_OK;
+}
/*
called when a new socket connection has been established. This is called in the process
uint32_t server_id, void *private)
{
struct stream_socket *stream_socket = talloc_get_type(private, struct stream_socket);
- struct fd_event fde;
struct stream_connection *srv_conn;
+ struct socket_address *c, *s;
srv_conn = talloc_zero(ev, struct stream_connection);
if (!srv_conn) {
talloc_steal(srv_conn, sock);
- fde.private = srv_conn;
- fde.fd = socket_get_fd(sock);
- fde.flags = EVENT_FD_READ;
- fde.handler = stream_io_handler;
-
srv_conn->private = stream_socket->private;
srv_conn->model_ops = stream_socket->model_ops;
- srv_conn->event.ctx = ev;
- srv_conn->event.fde = &fde;
srv_conn->socket = sock;
srv_conn->server_id = server_id;
srv_conn->ops = stream_socket->ops;
- srv_conn->event.fde = event_add_fd(ev, &fde, srv_conn);
+ srv_conn->event.ctx = ev;
+ srv_conn->event.fde = event_add_fd(ev, srv_conn, socket_get_fd(sock),
+ EVENT_FD_READ,
+ stream_io_handler, srv_conn);
if (!socket_check_access(sock, "smbd", lp_hostsallow(-1), lp_hostsdeny(-1))) {
stream_terminate_connection(srv_conn, "denied by access rules");
return;
}
+ c = socket_get_peer_addr(sock, ev);
+ s = socket_get_my_addr(sock, ev);
+ if (s && c) {
+ const char *title;
+ title = talloc_asprintf(s, "conn[%s] c[%s:%u] s[%s:%u] server_id[%d]",
+ stream_socket->ops->name,
+ c->addr, c->port, s->addr, s->port,
+ server_id);
+ if (title) {
+ stream_connection_set_title(srv_conn, title);
+ }
+ }
+ talloc_free(c);
+ talloc_free(s);
+
/* call the server specific accept code */
stream_socket->ops->accept_connection(srv_conn);
}
called when someone opens a connection to one of our listening ports
*/
static void stream_accept_handler(struct event_context *ev, struct fd_event *fde,
- struct timeval t, uint16_t flags)
+ uint16_t flags, void *private)
{
- struct stream_socket *stream_socket = talloc_get_type(fde->private, struct stream_socket);
+ struct stream_socket *stream_socket = talloc_get_type(private, struct stream_socket);
/* ask the process model to create us a process for this new
connection. When done, it calls stream_new_connection()
{
NTSTATUS status;
struct stream_socket *stream_socket;
- struct fd_event fde;
+ struct socket_address *socket_address;
int i;
stream_socket = talloc_zero(event_context, struct stream_socket);
if (*port == 0) {
for (i=SERVER_TCP_LOW_PORT;i<= SERVER_TCP_HIGH_PORT;i++) {
- status = socket_listen(stream_socket->sock, sock_addr, i,
+ socket_address = socket_address_from_strings(stream_socket,
+ stream_socket->sock->backend_name,
+ sock_addr, i);
+ NT_STATUS_HAVE_NO_MEMORY(socket_address);
+ status = socket_listen(stream_socket->sock, socket_address,
SERVER_LISTEN_BACKLOG, 0);
+ talloc_free(socket_address);
if (NT_STATUS_IS_OK(status)) {
*port = i;
break;
}
}
} else {
- status = socket_listen(stream_socket->sock, sock_addr, *port, SERVER_LISTEN_BACKLOG, 0);
+ socket_address = socket_address_from_strings(stream_socket,
+ stream_socket->sock->backend_name,
+ sock_addr, *port);
+ NT_STATUS_HAVE_NO_MEMORY(socket_address);
+ status = socket_listen(stream_socket->sock, socket_address, SERVER_LISTEN_BACKLOG, 0);
+ talloc_free(socket_address);
}
if (!NT_STATUS_IS_OK(status)) {
return status;
}
- /* we are only interested in read events on the listen socket */
- fde.fd = socket_get_fd(stream_socket->sock);
- fde.flags = EVENT_FD_READ;
- fde.private = stream_socket;
- fde.handler = stream_accept_handler;
-
- event_add_fd(event_context, &fde, stream_socket->sock);
+ event_add_fd(event_context, stream_socket->sock,
+ socket_get_fd(stream_socket->sock),
+ EVENT_FD_READ, stream_accept_handler, stream_socket);
stream_socket->private = talloc_reference(stream_socket, private);
stream_socket->ops = stream_ops;
return NT_STATUS_OK;
}
+
+/*
+ setup a connection title
+*/
+void stream_connection_set_title(struct stream_connection *conn, const char *title)
+{
+ conn->model_ops->set_title(conn->event.ctx, title);
+}
git.samba.org / jelmer / samba4-debian.git / blobdiff