-/*
+/*
Unix SMB/CIFS implementation.
Pipe SMB reply routines
Copyright (C) Andrew Tridgell 1992-1998
Copyright (C) Luke Kenneth Casson Leighton 1996-1998
Copyright (C) Paul Ashton 1997-1998.
Copyright (C) Jeremy Allison 2005.
-
+
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
-
+
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
-
+
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
-
-#define PIPE "\\PIPE\\"
-#define PIPELEN strlen(PIPE)
-
-#define MAX_PIPE_NAME_LEN 24
+#include "smbd/smbd.h"
+#include "smbd/globals.h"
+#include "libcli/security/security.h"
+#include "rpc_server/srv_pipe_hnd.h"
NTSTATUS open_np_file(struct smb_request *smb_req, const char *name,
struct files_struct **pfsp)
fsp->can_lock = false;
fsp->access_mask = FILE_READ_DATA | FILE_WRITE_DATA;
- status = create_synthetic_smb_fname(talloc_tos(), name, NULL, NULL,
- &smb_fname);
- if (!NT_STATUS_IS_OK(status)) {
+ smb_fname = synthetic_smb_fname(talloc_tos(), name, NULL, NULL, 0);
+ if (smb_fname == NULL) {
file_free(smb_req, fsp);
- return status;
+ return NT_STATUS_NO_MEMORY;
}
status = fsp_set_smb_fname(fsp, smb_fname);
TALLOC_FREE(smb_fname);
return status;
}
- status = np_open(NULL, name, conn->client_address,
- conn->server_info, &fsp->fake_file_handle);
+ status = np_open(fsp, name,
+ conn->sconn->remote_address,
+ conn->sconn->local_address,
+ conn->session_info,
+ conn->sconn->ev_ctx,
+ conn->sconn->msg_ctx,
+ &fsp->fake_file_handle);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(10, ("np_open(%s) returned %s\n", name,
nt_errstr(status)));
/* If the name doesn't start \PIPE\ then this is directed */
/* 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_nterror(req, NT_STATUS_ACCESS_DENIED);
+
+#define PIPE "PIPE\\"
+#define PIPELEN strlen(PIPE)
+
+ fname = pipe_name;
+ while (fname[0] == '\\') {
+ fname++;
+ }
+ if (!strnequal(fname, PIPE, PIPELEN)) {
+ reply_nterror(req, NT_STATUS_OBJECT_PATH_SYNTAX_BAD);
return;
}
+ fname += PIPELEN;
+ while (fname[0] == '\\') {
+ fname++;
+ }
- DEBUG(4,("Opening pipe %s.\n", pipe_name));
-
- /* Strip \PIPE\ off the name. */
- fname = pipe_name + PIPELEN;
+ DEBUG(4,("Opening pipe %s => %s.\n", pipe_name, fname));
#if 0
/*
/* Prepare the reply */
reply_outbuf(req, 15, 0);
+ SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
+ SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
+
/* Mark the opened file as an existing named pipe in message mode. */
SSVAL(req->outbuf,smb_vwv9,2);
SSVAL(req->outbuf,smb_vwv10,0xc700);
SIVAL(req->outbuf, smb_vwv6, 0); /* size */
SSVAL(req->outbuf, smb_vwv8, 0); /* rmode */
SSVAL(req->outbuf, smb_vwv11, 0x0001);
-
- chain_reply(req);
- return;
}
/****************************************************************************
data = req->buf + 3;
- DEBUG(6, ("reply_pipe_write: %x name: %s len: %d\n", (int)fsp->fnum,
+ DEBUG(6, ("reply_pipe_write: %s, name: %s len: %d\n", fsp_fnum_dbg(fsp),
fsp_str_dbg(fsp), (int)state->numtowrite));
- subreq = np_write_send(state, smbd_event_context(),
+ subreq = np_write_send(state, req->sconn->ev_ctx,
fsp->fake_file_handle, data, state->numtowrite);
if (subreq == NULL) {
TALLOC_FREE(state);
DEBUG(3,("write-IPC nwritten=%d\n", (int)nwritten));
send:
- if (!srv_send_smb(smbd_server_fd(), (char *)req->outbuf,
+ if (!srv_send_smb(req->xconn, (char *)req->outbuf,
true, req->seqnum+1,
IS_CONN_ENCRYPTED(req->conn)||req->encrypted,
&req->pcd)) {
{
files_struct *fsp = file_fsp(req, SVAL(req->vwv+2, 0));
int smb_doff = SVAL(req->vwv+11, 0);
- uint8_t *data;
+ const uint8_t *data;
struct pipe_write_andx_state *state;
struct tevent_req *subreq;
((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_str_dbg(fsp), (int)state->numtowrite));
+ DEBUG(6, ("reply_pipe_write_and_X: %s, name: %s len: %d\n",
+ fsp_fnum_dbg(fsp), fsp_str_dbg(fsp), (int)state->numtowrite));
- data = (uint8_t *)smb_base(req->inbuf) + smb_doff;
+ data = (const uint8_t *)smb_base(req->inbuf) + smb_doff;
if (state->pipe_start_message_raw) {
/*
state->numtowrite -= 2;
}
- subreq = np_write_send(state, smbd_event_context(),
+ subreq = np_write_send(state, req->sconn->ev_ctx,
fsp->fake_file_handle, data, state->numtowrite);
if (subreq == NULL) {
TALLOC_FREE(state);
reply_outbuf(req, 6, 0);
+ SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
+ SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
+
nwritten = (state->pipe_start_message_raw ? nwritten + 2 : nwritten);
SSVAL(req->outbuf,smb_vwv2,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);
+ smb_request_done(req);
}
/****************************************************************************
is deliberate, instead we always return the next lump of
data on the pipe */
#if 0
- uint32 smb_offs = IVAL(req->vwv+3, 0);
+ uint32_t smb_offs = IVAL(req->vwv+3, 0);
#endif
if (!fsp_is_np(fsp)) {
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);
+ reply_outbuf(req, 12, state->smb_maxcnt + 1 /* padding byte */);
+ SSVAL(req->outbuf, smb_vwv0, 0xff); /* andx chain ends */
+ SSVAL(req->outbuf, smb_vwv1, 0); /* no andx offset */
+ SCVAL(smb_buf(req->outbuf), 0, 0); /* padding byte */
+
+ data = (uint8_t *)smb_buf(req->outbuf) + 1 /* padding byte */;
/*
* 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(),
+ subreq = np_read_send(state, req->sconn->ev_ctx,
fsp->fake_file_handle, data,
state->smb_maxcnt);
if (subreq == NULL) {
status = np_read_recv(subreq, &nread, &is_data_outstanding);
TALLOC_FREE(subreq);
if (!NT_STATUS_IS_OK(status)) {
+ NTSTATUS old = status;
+ status = nt_status_np_pipe(old);
reply_nterror(req, status);
goto done;
}
req->outbuf = state->outbuf;
state->outbuf = NULL;
- srv_set_message((char *)req->outbuf, 12, nread, False);
-
+ srv_set_message((char *)req->outbuf, 12, nread + 1 /* padding byte */,
+ 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)
+ (smb_wct - 4) /* offset from smb header to wct */
+ 1 /* the wct field */
+ 12 * sizeof(uint16_t) /* vwv */
- + 2); /* the buflen field */
- SSVAL(req->outbuf,smb_vwv11,state->smb_maxcnt);
-
+ + 2 /* the buflen field */
+ + 1); /* padding byte */
+
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);
+ smb_request_done(req);
}