return NT_STATUS_OK;
}
+void smbXsrv_connection_disconnect_transport(struct smbXsrv_connection *xconn,
+ NTSTATUS status)
+{
+ if (!NT_STATUS_IS_OK(xconn->transport.status)) {
+ return;
+ }
+
+ xconn->transport.status = status;
+ TALLOC_FREE(xconn->transport.fde);
+ if (xconn->transport.sock != -1) {
+ xconn->transport.sock = -1;
+ }
+ DO_PROFILE_INC(disconnect);
+}
+
+static size_t smbXsrv_client_valid_connections(struct smbXsrv_client *client)
+{
+ struct smbXsrv_connection *xconn = NULL;
+ size_t num_ok = 0;
+
+ for (xconn = client->connections; xconn != NULL; xconn = xconn->next) {
+ if (NT_STATUS_IS_OK(xconn->transport.status)) {
+ num_ok++;
+ }
+ }
+
+ return num_ok;
+}
+
+struct smbXsrv_connection_shutdown_state {
+ struct tevent_queue *wait_queue;
+};
+
+static void smbXsrv_connection_shutdown_wait_done(struct tevent_req *subreq);
+
+static struct tevent_req *smbXsrv_connection_shutdown_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct smbXsrv_connection *xconn)
+{
+ struct tevent_req *req = NULL;
+ struct smbXsrv_connection_shutdown_state *state = NULL;
+ struct tevent_req *subreq = NULL;
+ size_t len = 0;
+ struct smbd_smb2_request *preq = NULL;
+ NTSTATUS status;
+
+ /*
+ * The caller should have called
+ * smbXsrv_connection_disconnect_transport() before.
+ */
+ SMB_ASSERT(!NT_STATUS_IS_OK(xconn->transport.status));
+
+ req = tevent_req_create(mem_ctx, &state,
+ struct smbXsrv_connection_shutdown_state);
+ if (req == NULL) {
+ return NULL;
+ }
+
+ status = smbXsrv_session_disconnect_xconn(xconn);
+ if (tevent_req_nterror(req, status)) {
+ return tevent_req_post(req, ev);
+ }
+
+ state->wait_queue = tevent_queue_create(state, "smbXsrv_connection_shutdown_queue");
+ if (tevent_req_nomem(state->wait_queue, req)) {
+ return tevent_req_post(req, ev);
+ }
+
+ for (preq = xconn->smb2.requests; preq != NULL; preq = preq->next) {
+ /*
+ * The connection is gone so we
+ * don't need to take care of
+ * any crypto
+ */
+ preq->session = NULL;
+ preq->do_signing = false;
+ preq->do_encryption = false;
+ preq->preauth = NULL;
+
+ if (preq->subreq != NULL) {
+ tevent_req_cancel(preq->subreq);
+ }
+
+ /*
+ * Now wait until the request is finished.
+ *
+ * We don't set a callback, as we just want to block the
+ * wait queue and the talloc_free() of the request will
+ * remove the item from the wait queue.
+ */
+ subreq = tevent_queue_wait_send(preq, ev, state->wait_queue);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ }
+
+ len = tevent_queue_length(state->wait_queue);
+ if (len == 0) {
+ tevent_req_done(req);
+ return tevent_req_post(req, ev);
+ }
+
+ /*
+ * Now we add our own waiter to the end of the queue,
+ * this way we get notified when all pending requests are finished
+ * and send to the socket.
+ */
+ subreq = tevent_queue_wait_send(state, ev, state->wait_queue);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, smbXsrv_connection_shutdown_wait_done, req);
+
+ return req;
+}
+
+static void smbXsrv_connection_shutdown_wait_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req =
+ tevent_req_callback_data(subreq,
+ struct tevent_req);
+
+ tevent_queue_wait_recv(subreq);
+ TALLOC_FREE(subreq);
+
+ tevent_req_done(req);
+}
+
+static NTSTATUS smbXsrv_connection_shutdown_recv(struct tevent_req *req)
+{
+ return tevent_req_simple_recv_ntstatus(req);
+}
+
+static void smbd_server_connection_terminate_done(struct tevent_req *subreq)
+{
+ struct smbXsrv_connection *xconn =
+ tevent_req_callback_data(subreq,
+ struct smbXsrv_connection);
+ struct smbXsrv_client *client = xconn->client;
+ NTSTATUS status;
+
+ status = smbXsrv_connection_shutdown_recv(subreq);
+ if (!NT_STATUS_IS_OK(status)) {
+ exit_server("smbXsrv_connection_shutdown_recv failed");
+ }
+
+ DLIST_REMOVE(client->connections, xconn);
+ TALLOC_FREE(xconn);
+}
+
void smbd_server_connection_terminate_ex(struct smbXsrv_connection *xconn,
const char *reason,
const char *location)
{
struct smbXsrv_client *client = xconn->client;
+ size_t num_ok = 0;
+
+ /*
+ * Make sure that no new request will be able to use this session.
+ *
+ * smbXsrv_connection_disconnect_transport() might be called already,
+ * but calling it again is a no-op.
+ */
+ smbXsrv_connection_disconnect_transport(xconn,
+ NT_STATUS_CONNECTION_DISCONNECTED);
- DEBUG(10,("smbd_server_connection_terminate_ex: conn[%s] reason[%s] at %s\n",
- smbXsrv_connection_dbg(xconn), reason, location));
+ num_ok = smbXsrv_client_valid_connections(client);
- if (client->connections->next != NULL) {
- /* TODO: cancel pending requests */
- DLIST_REMOVE(client->connections, xconn);
- TALLOC_FREE(xconn);
- DO_PROFILE_INC(disconnect);
+ DBG_DEBUG("conn[%s] num_ok[%zu] reason[%s] at %s\n",
+ smbXsrv_connection_dbg(xconn), num_ok,
+ reason, location);
+
+ if (num_ok != 0) {
+ struct tevent_req *subreq = NULL;
+
+ subreq = smbXsrv_connection_shutdown_send(client,
+ client->raw_ev_ctx,
+ xconn);
+ if (subreq == NULL) {
+ exit_server("smbXsrv_connection_shutdown_send failed");
+ }
+ tevent_req_set_callback(subreq,
+ smbd_server_connection_terminate_done,
+ xconn);
return;
}
switch (opcode) {
case SMB2_OP_IOCTL:
case SMB2_OP_GETINFO:
- min_dyn_size = 0;
- break;
case SMB2_OP_WRITE:
- if (req->smb1req != NULL && req->smb1req->unread_bytes > 0) {
- if (req->smb1req->unread_bytes < min_dyn_size) {
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- min_dyn_size = 0;
- }
+ min_dyn_size = 0;
break;
}
while (xconn->smb2.send_queue != NULL) {
struct smbd_smb2_send_queue *e = xconn->smb2.send_queue;
bool ok;
+ struct msghdr msg;
if (e->sendfile_header != NULL) {
size_t size = 0;
talloc_free(e->mem_ctx);
if (!NT_STATUS_IS_OK(status)) {
+ smbXsrv_connection_disconnect_transport(xconn,
+ status);
return status;
}
continue;
}
- ret = writev(xconn->transport.sock, e->vector, e->count);
+ msg = (struct msghdr) {
+ .msg_iov = e->vector,
+ .msg_iovlen = e->count,
+ };
+
+ ret = sendmsg(xconn->transport.sock, &msg, 0);
if (ret == 0) {
/* propagate end of file */
return NT_STATUS_INTERNAL_ERROR;
return NT_STATUS_OK;
}
if (err != 0) {
- return map_nt_error_from_unix_common(err);
+ status = map_nt_error_from_unix_common(err);
+ smbXsrv_connection_disconnect_transport(xconn,
+ status);
+ return status;
}
ok = iov_advance(&e->vector, &e->count, ret);
bool retry;
NTSTATUS status;
NTTIME now;
+ struct msghdr msg;
if (!NT_STATUS_IS_OK(xconn->transport.status)) {
/*
state->vector.iov_len = NBT_HDR_SIZE;
}
- ret = readv(xconn->transport.sock, &state->vector, 1);
+ msg = (struct msghdr) {
+ .msg_iov = &state->vector,
+ .msg_iovlen = 1,
+ };
+
+ ret = recvmsg(xconn->transport.sock, &msg, 0);
if (ret == 0) {
/* propagate end of file */
- return NT_STATUS_END_OF_FILE;
+ status = NT_STATUS_END_OF_FILE;
+ smbXsrv_connection_disconnect_transport(xconn,
+ status);
+ return status;
}
err = socket_error_from_errno(ret, errno, &retry);
if (retry) {
return NT_STATUS_OK;
}
if (err != 0) {
- return map_nt_error_from_unix_common(err);
+ status = map_nt_error_from_unix_common(err);
+ smbXsrv_connection_disconnect_transport(xconn,
+ status);
+ return status;
}
if (ret < state->vector.iov_len) {
git.samba.org / samba.git / blobdiff