{
struct connection_struct *conn = smb_req->conn;
struct files_struct *fsp;
+ struct smb_filename *smb_fname = NULL;
NTSTATUS status;
status = file_new(smb_req, conn, &fsp);
fsp->vuid = smb_req->vuid;
fsp->can_lock = false;
fsp->access_mask = FILE_READ_DATA | FILE_WRITE_DATA;
- string_set(&fsp->fsp_name, name);
+
+ status = create_synthetic_smb_fname(talloc_tos(), name, NULL, NULL,
+ &smb_fname);
+ if (!NT_STATUS_IS_OK(status)) {
+ file_free(smb_req, fsp);
+ return status;
+ }
+ status = fsp_set_smb_fname(fsp, smb_fname);
+ TALLOC_FREE(smb_fname);
+ if (!NT_STATUS_IS_OK(status)) {
+ file_free(smb_req, fsp);
+ return status;
+ }
status = np_open(NULL, name, conn->client_address,
conn->server_info, &fsp->fake_file_handle);
/* at a mailslot or something we really, really don't understand, */
/* not just something we really don't understand. */
if ( strncmp(pipe_name,PIPE,PIPELEN) != 0 ) {
- reply_doserror(req, ERRSRV, ERRaccess);
+ reply_nterror(req, NT_STATUS_ACCESS_DENIED);
return;
}
* Hack for NT printers... JRA.
*/
if(should_fail_next_srvsvc_open(fname)) {
- reply_doserror(req, ERRSRV, ERRaccess);
+ reply_nterror(req, NT_STATUS_ACCESS_DENIED);
return;
}
#endif
Reply to a write on a pipe.
****************************************************************************/
+struct pipe_write_state {
+ size_t numtowrite;
+};
+
+static void pipe_write_done(struct tevent_req *subreq);
+
void reply_pipe_write(struct smb_request *req)
{
files_struct *fsp = file_fsp(req, SVAL(req->vwv+0, 0));
- size_t numtowrite = SVAL(req->vwv+1, 0);
- ssize_t nwritten;
const uint8_t *data;
+ struct pipe_write_state *state;
+ struct tevent_req *subreq;
if (!fsp_is_np(fsp)) {
- reply_doserror(req, ERRDOS, ERRbadfid);
+ reply_nterror(req, NT_STATUS_INVALID_HANDLE);
return;
}
return;
}
+ state = talloc(req, struct pipe_write_state);
+ if (state == NULL) {
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ return;
+ }
+ req->async_priv = state;
+
+ state->numtowrite = SVAL(req->vwv+1, 0);
+
data = req->buf + 3;
- if (numtowrite == 0) {
- nwritten = 0;
- } else {
- NTSTATUS status;
- if (!fsp_is_np(fsp)) {
- reply_nterror(req, NT_STATUS_INVALID_HANDLE);
- return;
- }
- DEBUG(6, ("reply_pipe_write: %x name: %s len: %d\n",
- (int)fsp->fnum, fsp->fsp_name, (int)numtowrite));
- status = np_write(fsp->fake_file_handle, data, numtowrite,
- &nwritten);
- if (!NT_STATUS_IS_OK(status)) {
- reply_nterror(req, status);
- return;
- }
- }
+ DEBUG(6, ("reply_pipe_write: %x name: %s len: %d\n", (int)fsp->fnum,
+ fsp_str_dbg(fsp), (int)state->numtowrite));
- if ((nwritten == 0 && numtowrite != 0) || (nwritten < 0)) {
- reply_unixerror(req, ERRDOS, ERRnoaccess);
+ subreq = np_write_send(state, smbd_event_context(),
+ fsp->fake_file_handle, data, state->numtowrite);
+ if (subreq == NULL) {
+ TALLOC_FREE(state);
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
return;
}
+ tevent_req_set_callback(subreq, pipe_write_done,
+ talloc_move(req->conn, &req));
+}
+
+static void pipe_write_done(struct tevent_req *subreq)
+{
+ struct smb_request *req = tevent_req_callback_data(
+ subreq, struct smb_request);
+ struct pipe_write_state *state = talloc_get_type_abort(
+ req->async_priv, struct pipe_write_state);
+ NTSTATUS status;
+ ssize_t nwritten = -1;
+
+ status = np_write_recv(subreq, &nwritten);
+ TALLOC_FREE(subreq);
+ if (nwritten < 0) {
+ reply_nterror(req, status);
+ goto send;
+ }
+
+ /* Looks bogus to me now. Needs to be removed ? JRA. */
+ if ((nwritten == 0 && state->numtowrite != 0)) {
+ reply_nterror(req, NT_STATUS_ACCESS_DENIED);
+ goto send;
+ }
reply_outbuf(req, 1, 0);
SSVAL(req->outbuf,smb_vwv0,nwritten);
-
- DEBUG(3,("write-IPC pnum=%04x nwritten=%d\n", fsp->fnum,
- (int)nwritten));
- return;
+ DEBUG(3,("write-IPC nwritten=%d\n", (int)nwritten));
+
+ send:
+ if (!srv_send_smb(smbd_server_fd(), (char *)req->outbuf,
+ true, req->seqnum+1,
+ IS_CONN_ENCRYPTED(req->conn)||req->encrypted,
+ &req->pcd)) {
+ exit_server_cleanly("construct_reply: srv_send_smb failed.");
+ }
+ TALLOC_FREE(req);
}
/****************************************************************************
wrinkles to handle pipes.
****************************************************************************/
+struct pipe_write_andx_state {
+ bool pipe_start_message_raw;
+ size_t numtowrite;
+};
+
+static void pipe_write_andx_done(struct tevent_req *subreq);
+
void reply_pipe_write_and_X(struct smb_request *req)
{
files_struct *fsp = file_fsp(req, SVAL(req->vwv+2, 0));
- size_t numtowrite = SVAL(req->vwv+10, 0);
- ssize_t nwritten;
int smb_doff = SVAL(req->vwv+11, 0);
- bool pipe_start_message_raw =
- ((SVAL(req->vwv+7, 0) & (PIPE_START_MESSAGE|PIPE_RAW_MODE))
- == (PIPE_START_MESSAGE|PIPE_RAW_MODE));
uint8_t *data;
+ struct pipe_write_andx_state *state;
+ struct tevent_req *subreq;
if (!fsp_is_np(fsp)) {
- reply_doserror(req, ERRDOS, ERRbadfid);
+ reply_nterror(req, NT_STATUS_INVALID_HANDLE);
return;
}
return;
}
+ state = talloc(req, struct pipe_write_andx_state);
+ if (state == NULL) {
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ return;
+ }
+ req->async_priv = state;
+
+ state->numtowrite = SVAL(req->vwv+10, 0);
+ state->pipe_start_message_raw =
+ ((SVAL(req->vwv+7, 0) & (PIPE_START_MESSAGE|PIPE_RAW_MODE))
+ == (PIPE_START_MESSAGE|PIPE_RAW_MODE));
+
DEBUG(6, ("reply_pipe_write_and_X: %x name: %s len: %d\n",
- (int)fsp->fnum, fsp->fsp_name, (int)numtowrite));
+ (int)fsp->fnum, fsp_str_dbg(fsp), (int)state->numtowrite));
data = (uint8_t *)smb_base(req->inbuf) + smb_doff;
- if (numtowrite == 0) {
- nwritten = 0;
- } else {
- NTSTATUS status;
-
- if(pipe_start_message_raw) {
- /*
- * For the start of a message in named pipe byte mode,
- * the first two bytes are a length-of-pdu field. Ignore
- * them (we don't trust the client). JRA.
- */
- if(numtowrite < 2) {
- DEBUG(0,("reply_pipe_write_and_X: start of "
- "message set and not enough data "
- "sent.(%u)\n",
- (unsigned int)numtowrite ));
- reply_unixerror(req, ERRDOS, ERRnoaccess);
- return;
- }
-
- data += 2;
- numtowrite -= 2;
- }
- status = np_write(fsp->fake_file_handle, data, numtowrite,
- &nwritten);
- if (!NT_STATUS_IS_OK(status)) {
- reply_nterror(req, status);
+ if (state->pipe_start_message_raw) {
+ /*
+ * For the start of a message in named pipe byte mode,
+ * the first two bytes are a length-of-pdu field. Ignore
+ * them (we don't trust the client). JRA.
+ */
+ if (state->numtowrite < 2) {
+ DEBUG(0,("reply_pipe_write_and_X: start of message "
+ "set and not enough data sent.(%u)\n",
+ (unsigned int)state->numtowrite ));
+ reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
return;
}
+
+ data += 2;
+ state->numtowrite -= 2;
}
- if ((nwritten == 0 && numtowrite != 0) || (nwritten < 0)) {
- reply_unixerror(req, ERRDOS,ERRnoaccess);
+ subreq = np_write_send(state, smbd_event_context(),
+ fsp->fake_file_handle, data, state->numtowrite);
+ if (subreq == NULL) {
+ TALLOC_FREE(state);
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
return;
}
+ tevent_req_set_callback(subreq, pipe_write_andx_done,
+ talloc_move(req->conn, &req));
+}
+
+static void pipe_write_andx_done(struct tevent_req *subreq)
+{
+ struct smb_request *req = tevent_req_callback_data(
+ subreq, struct smb_request);
+ struct pipe_write_andx_state *state = talloc_get_type_abort(
+ req->async_priv, struct pipe_write_andx_state);
+ NTSTATUS status;
+ ssize_t nwritten = -1;
+
+ status = np_write_recv(subreq, &nwritten);
+ TALLOC_FREE(subreq);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ reply_nterror(req, status);
+ goto done;
+ }
+
+ /* Looks bogus to me now. Is this error message correct ? JRA. */
+ if (nwritten != state->numtowrite) {
+ reply_nterror(req, NT_STATUS_ACCESS_DENIED);
+ goto done;
+ }
reply_outbuf(req, 6, 0);
- nwritten = (pipe_start_message_raw ? nwritten + 2 : nwritten);
+ nwritten = (state->pipe_start_message_raw ? nwritten + 2 : nwritten);
SSVAL(req->outbuf,smb_vwv2,nwritten);
-
- DEBUG(3,("writeX-IPC pnum=%04x nwritten=%d\n", fsp->fnum,
- (int)nwritten));
+ DEBUG(3,("writeX-IPC nwritten=%d\n", (int)nwritten));
+
+ done:
chain_reply(req);
+ /*
+ * We must free here as the ownership of req was
+ * moved to the connection struct in reply_pipe_write_and_X().
+ */
+ TALLOC_FREE(req);
}
/****************************************************************************
wrinkles to handle pipes.
****************************************************************************/
+struct pipe_read_andx_state {
+ uint8_t *outbuf;
+ int smb_mincnt;
+ int smb_maxcnt;
+};
+
+static void pipe_read_andx_done(struct tevent_req *subreq);
+
void reply_pipe_read_and_X(struct smb_request *req)
{
files_struct *fsp = file_fsp(req, SVAL(req->vwv+0, 0));
- int smb_maxcnt = SVAL(req->vwv+5, 0);
- int smb_mincnt = SVAL(req->vwv+6, 0);
- ssize_t nread;
uint8_t *data;
- bool unused;
- NTSTATUS status;
+ struct pipe_read_andx_state *state;
+ struct tevent_req *subreq;
/* we don't use the offset given to use for pipe reads. This
is deliberate, instead we always return the next lump of
#endif
if (!fsp_is_np(fsp)) {
- reply_doserror(req, ERRDOS, ERRbadfid);
+ reply_nterror(req, NT_STATUS_INVALID_HANDLE);
return;
}
return;
}
- reply_outbuf(req, 12, smb_maxcnt);
+ state = talloc(req, struct pipe_read_andx_state);
+ if (state == NULL) {
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ return;
+ }
+ req->async_priv = state;
+
+ state->smb_maxcnt = SVAL(req->vwv+5, 0);
+ state->smb_mincnt = SVAL(req->vwv+6, 0);
+ reply_outbuf(req, 12, state->smb_maxcnt);
data = (uint8_t *)smb_buf(req->outbuf);
- status = np_read(fsp->fake_file_handle, data, smb_maxcnt, &nread,
- &unused);
+ /*
+ * We have to tell the upper layers that we're async.
+ */
+ state->outbuf = req->outbuf;
+ req->outbuf = NULL;
+
+ subreq = np_read_send(state, smbd_event_context(),
+ fsp->fake_file_handle, data,
+ state->smb_maxcnt);
+ if (subreq == NULL) {
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ return;
+ }
+ tevent_req_set_callback(subreq, pipe_read_andx_done,
+ talloc_move(req->conn, &req));
+}
+
+static void pipe_read_andx_done(struct tevent_req *subreq)
+{
+ struct smb_request *req = tevent_req_callback_data(
+ subreq, struct smb_request);
+ struct pipe_read_andx_state *state = talloc_get_type_abort(
+ req->async_priv, struct pipe_read_andx_state);
+ NTSTATUS status;
+ ssize_t nread;
+ bool is_data_outstanding;
+ status = np_read_recv(subreq, &nread, &is_data_outstanding);
+ TALLOC_FREE(subreq);
if (!NT_STATUS_IS_OK(status)) {
- reply_doserror(req, ERRDOS, ERRnoaccess);
- return;
+ reply_nterror(req, status);
+ goto done;
}
+ req->outbuf = state->outbuf;
+ state->outbuf = NULL;
+
srv_set_message((char *)req->outbuf, 12, nread, False);
-
+
+#if 0
+ /*
+ * we should return STATUS_BUFFER_OVERFLOW if there's
+ * out standing data.
+ *
+ * But we can't enable it yet, as it has bad interactions
+ * with fixup_chain_error_packet() in chain_reply().
+ */
+ if (is_data_outstanding) {
+ error_packet_set((char *)req->outbuf, ERRDOS, ERRmoredata,
+ STATUS_BUFFER_OVERFLOW, __LINE__, __FILE__);
+ }
+#endif
+
SSVAL(req->outbuf,smb_vwv5,nread);
SSVAL(req->outbuf,smb_vwv6,
req_wct_ofs(req)
+ 1 /* the wct field */
+ 12 * sizeof(uint16_t) /* vwv */
+ 2); /* the buflen field */
- SSVAL(req->outbuf,smb_vwv11,smb_maxcnt);
+ SSVAL(req->outbuf,smb_vwv11,state->smb_maxcnt);
- DEBUG(3,("readX-IPC pnum=%04x min=%d max=%d nread=%d\n",
- fsp->fnum, smb_mincnt, smb_maxcnt, (int)nread));
+ DEBUG(3,("readX-IPC min=%d max=%d nread=%d\n",
+ state->smb_mincnt, state->smb_maxcnt, (int)nread));
+ done:
chain_reply(req);
+ /*
+ * We must free here as the ownership of req was
+ * moved to the connection struct in reply_pipe_read_and_X().
+ */
+ TALLOC_FREE(req);
}
git.samba.org / metze / samba / wip.git / blobdiff