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https://github.com/samba-team/samba.git
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794 lines
20 KiB
C
794 lines
20 KiB
C
/*
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* Unix SMB/CIFS implementation.
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* RPC Pipe client / server routines
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* Copyright (C) Andrew Tridgell 1992-1998,
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* Largely re-written : 2005
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* Copyright (C) Jeremy Allison 1998 - 2005
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "rpc_server.h"
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#include "fake_file.h"
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#include "rpc_dce.h"
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#include "ntdomain.h"
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#include "rpc_server/rpc_ncacn_np.h"
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#include "rpc_server/srv_pipe_hnd.h"
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#include "rpc_server/srv_pipe.h"
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#include "../lib/tsocket/tsocket.h"
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#include "../lib/util/tevent_ntstatus.h"
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#undef DBGC_CLASS
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#define DBGC_CLASS DBGC_RPC_SRV
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/****************************************************************************
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Ensures we have at least RPC_HEADER_LEN amount of data in the incoming buffer.
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****************************************************************************/
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static ssize_t fill_rpc_header(struct pipes_struct *p, const char *data, size_t data_to_copy)
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{
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size_t len_needed_to_complete_hdr =
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MIN(data_to_copy, RPC_HEADER_LEN - p->in_data.pdu.length);
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DEBUG(10, ("fill_rpc_header: data_to_copy = %u, "
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"len_needed_to_complete_hdr = %u, "
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"receive_len = %u\n",
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(unsigned int)data_to_copy,
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(unsigned int)len_needed_to_complete_hdr,
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(unsigned int)p->in_data.pdu.length ));
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if (p->in_data.pdu.data == NULL) {
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p->in_data.pdu.data = talloc_array(p, uint8_t, RPC_HEADER_LEN);
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}
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if (p->in_data.pdu.data == NULL) {
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DEBUG(0, ("talloc failed\n"));
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return -1;
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}
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memcpy((char *)&p->in_data.pdu.data[p->in_data.pdu.length],
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data, len_needed_to_complete_hdr);
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p->in_data.pdu.length += len_needed_to_complete_hdr;
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return (ssize_t)len_needed_to_complete_hdr;
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}
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static bool get_pdu_size(struct pipes_struct *p)
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{
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uint16_t frag_len;
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/* the fill_rpc_header() call insures we copy only
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* RPC_HEADER_LEN bytes. If this doesn't match then
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* somethign is very wrong and we can only abort */
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if (p->in_data.pdu.length != RPC_HEADER_LEN) {
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DEBUG(0, ("Unexpected RPC Header size! "
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"got %d, expected %d)\n",
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(int)p->in_data.pdu.length,
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RPC_HEADER_LEN));
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set_incoming_fault(p);
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return false;
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}
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frag_len = dcerpc_get_frag_length(&p->in_data.pdu);
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/* verify it is a reasonable value */
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if ((frag_len < RPC_HEADER_LEN) ||
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(frag_len > RPC_MAX_PDU_FRAG_LEN)) {
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DEBUG(0, ("Unexpected RPC Fragment size! (%d)\n",
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frag_len));
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set_incoming_fault(p);
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return false;
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}
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p->in_data.pdu_needed_len = frag_len - RPC_HEADER_LEN;
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/* allocate the space needed to fill the pdu */
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p->in_data.pdu.data = talloc_realloc(p, p->in_data.pdu.data,
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uint8_t, frag_len);
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if (p->in_data.pdu.data == NULL) {
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DEBUG(0, ("talloc_realloc failed\n"));
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set_incoming_fault(p);
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return false;
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}
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return true;
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}
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/****************************************************************************
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Call this to free any talloc'ed memory. Do this after processing
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a complete incoming and outgoing request (multiple incoming/outgoing
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PDU's).
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****************************************************************************/
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static void free_pipe_context(struct pipes_struct *p)
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{
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data_blob_free(&p->out_data.frag);
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data_blob_free(&p->out_data.rdata);
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data_blob_free(&p->in_data.data);
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DEBUG(3, ("free_pipe_context: "
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"destroying talloc pool of size %lu\n",
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(unsigned long)talloc_total_size(p->mem_ctx)));
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talloc_free_children(p->mem_ctx);
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}
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/****************************************************************************
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Accepts incoming data on an rpc pipe. Processes the data in pdu sized units.
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****************************************************************************/
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ssize_t process_incoming_data(struct pipes_struct *p, const char *data, size_t n)
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{
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size_t data_to_copy = MIN(n, RPC_MAX_PDU_FRAG_LEN
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- p->in_data.pdu.length);
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DEBUG(10, ("process_incoming_data: Start: pdu.length = %u, "
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"pdu_needed_len = %u, incoming data = %u\n",
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(unsigned int)p->in_data.pdu.length,
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(unsigned int)p->in_data.pdu_needed_len,
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(unsigned int)n ));
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if(data_to_copy == 0) {
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/*
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* This is an error - data is being received and there is no
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* space in the PDU. Free the received data and go into the
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* fault state.
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*/
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DEBUG(0, ("process_incoming_data: "
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"No space in incoming pdu buffer. "
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"Current size = %u incoming data size = %u\n",
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(unsigned int)p->in_data.pdu.length,
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(unsigned int)n));
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set_incoming_fault(p);
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return -1;
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}
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/*
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* If we have no data already, wait until we get at least
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* a RPC_HEADER_LEN * number of bytes before we can do anything.
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*/
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if ((p->in_data.pdu_needed_len == 0) &&
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(p->in_data.pdu.length < RPC_HEADER_LEN)) {
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/*
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* Always return here. If we have more data then the RPC_HEADER
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* will be processed the next time around the loop.
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*/
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return fill_rpc_header(p, data, data_to_copy);
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}
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/*
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* At this point we know we have at least an RPC_HEADER_LEN amount of
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* data stored in p->in_data.pdu.
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*/
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/*
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* If pdu_needed_len is zero this is a new pdu.
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* Check how much more data we need, then loop again.
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*/
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if (p->in_data.pdu_needed_len == 0) {
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bool ok = get_pdu_size(p);
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if (!ok) {
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return -1;
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}
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if (p->in_data.pdu_needed_len > 0) {
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return 0;
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}
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/* If rret == 0 and pdu_needed_len == 0 here we have a PDU
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* that consists of an RPC_HEADER only. This is a
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* DCERPC_PKT_SHUTDOWN, DCERPC_PKT_CO_CANCEL or
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* DCERPC_PKT_ORPHANED pdu type.
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* Deal with this in process_complete_pdu(). */
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}
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/*
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* Ok - at this point we have a valid RPC_HEADER.
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* Keep reading until we have a full pdu.
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*/
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data_to_copy = MIN(data_to_copy, p->in_data.pdu_needed_len);
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/*
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* Copy as much of the data as we need into the p->in_data.pdu buffer.
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* pdu_needed_len becomes zero when we have a complete pdu.
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*/
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memcpy((char *)&p->in_data.pdu.data[p->in_data.pdu.length],
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data, data_to_copy);
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p->in_data.pdu.length += data_to_copy;
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p->in_data.pdu_needed_len -= data_to_copy;
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/*
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* Do we have a complete PDU ?
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* (return the number of bytes handled in the call)
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*/
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if(p->in_data.pdu_needed_len == 0) {
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process_complete_pdu(p);
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return data_to_copy;
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}
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DEBUG(10, ("process_incoming_data: not a complete PDU yet. "
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"pdu.length = %u, pdu_needed_len = %u\n",
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(unsigned int)p->in_data.pdu.length,
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(unsigned int)p->in_data.pdu_needed_len));
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return (ssize_t)data_to_copy;
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}
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/****************************************************************************
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Accepts incoming data on an internal rpc pipe.
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****************************************************************************/
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static ssize_t write_to_internal_pipe(struct pipes_struct *p, const char *data, size_t n)
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{
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size_t data_left = n;
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while(data_left) {
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ssize_t data_used;
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DEBUG(10, ("write_to_pipe: data_left = %u\n",
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(unsigned int)data_left));
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data_used = process_incoming_data(p, data, data_left);
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DEBUG(10, ("write_to_pipe: data_used = %d\n",
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(int)data_used));
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if(data_used < 0) {
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return -1;
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}
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data_left -= data_used;
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data += data_used;
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}
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return n;
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}
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/****************************************************************************
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Replies to a request to read data from a pipe.
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Headers are interspersed with the data at PDU intervals. By the time
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this function is called, the start of the data could possibly have been
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read by an SMBtrans (file_offset != 0).
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Calling create_rpc_reply() here is a hack. The data should already
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have been prepared into arrays of headers + data stream sections.
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****************************************************************************/
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static ssize_t read_from_internal_pipe(struct pipes_struct *p, char *data,
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size_t n, bool *is_data_outstanding)
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{
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uint32 pdu_remaining = 0;
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ssize_t data_returned = 0;
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if (!p) {
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DEBUG(0,("read_from_pipe: pipe not open\n"));
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return -1;
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}
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DEBUG(6,(" name: %s len: %u\n",
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get_pipe_name_from_syntax(talloc_tos(), &p->syntax),
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(unsigned int)n));
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/*
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* We cannot return more than one PDU length per
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* read request.
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*/
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/*
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* This condition should result in the connection being closed.
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* Netapp filers seem to set it to 0xffff which results in domain
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* authentications failing. Just ignore it so things work.
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*/
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if(n > RPC_MAX_PDU_FRAG_LEN) {
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DEBUG(5,("read_from_pipe: too large read (%u) requested on "
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"pipe %s. We can only service %d sized reads.\n",
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(unsigned int)n,
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get_pipe_name_from_syntax(talloc_tos(), &p->syntax),
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RPC_MAX_PDU_FRAG_LEN ));
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n = RPC_MAX_PDU_FRAG_LEN;
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}
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/*
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* Determine if there is still data to send in the
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* pipe PDU buffer. Always send this first. Never
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* send more than is left in the current PDU. The
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* client should send a new read request for a new
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* PDU.
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*/
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pdu_remaining = p->out_data.frag.length
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- p->out_data.current_pdu_sent;
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if (pdu_remaining > 0) {
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data_returned = (ssize_t)MIN(n, pdu_remaining);
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DEBUG(10,("read_from_pipe: %s: current_pdu_len = %u, "
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"current_pdu_sent = %u returning %d bytes.\n",
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get_pipe_name_from_syntax(talloc_tos(), &p->syntax),
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(unsigned int)p->out_data.frag.length,
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(unsigned int)p->out_data.current_pdu_sent,
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(int)data_returned));
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memcpy(data,
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p->out_data.frag.data
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+ p->out_data.current_pdu_sent,
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data_returned);
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p->out_data.current_pdu_sent += (uint32)data_returned;
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goto out;
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}
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/*
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* At this point p->current_pdu_len == p->current_pdu_sent (which
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* may of course be zero if this is the first return fragment.
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*/
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DEBUG(10,("read_from_pipe: %s: fault_state = %d : data_sent_length "
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"= %u, p->out_data.rdata.length = %u.\n",
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get_pipe_name_from_syntax(talloc_tos(), &p->syntax),
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(int)p->fault_state,
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(unsigned int)p->out_data.data_sent_length,
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(unsigned int)p->out_data.rdata.length));
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if (p->out_data.data_sent_length >= p->out_data.rdata.length) {
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/*
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* We have sent all possible data, return 0.
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*/
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data_returned = 0;
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goto out;
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}
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/*
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* We need to create a new PDU from the data left in p->rdata.
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* Create the header/data/footers. This also sets up the fields
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* p->current_pdu_len, p->current_pdu_sent, p->data_sent_length
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* and stores the outgoing PDU in p->current_pdu.
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*/
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if(!create_next_pdu(p)) {
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DEBUG(0,("read_from_pipe: %s: create_next_pdu failed.\n",
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get_pipe_name_from_syntax(talloc_tos(), &p->syntax)));
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return -1;
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}
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data_returned = MIN(n, p->out_data.frag.length);
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memcpy(data, p->out_data.frag.data, (size_t)data_returned);
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p->out_data.current_pdu_sent += (uint32)data_returned;
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out:
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(*is_data_outstanding) = p->out_data.frag.length > n;
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if (p->out_data.current_pdu_sent == p->out_data.frag.length) {
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/* We've returned everything in the out_data.frag
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* so we're done with this pdu. Free it and reset
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* current_pdu_sent. */
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p->out_data.current_pdu_sent = 0;
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data_blob_free(&p->out_data.frag);
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if (p->out_data.data_sent_length >= p->out_data.rdata.length) {
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/*
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* We're completely finished with both outgoing and
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* incoming data streams. It's safe to free all
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* temporary data from this request.
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*/
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free_pipe_context(p);
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}
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}
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return data_returned;
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}
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bool fsp_is_np(struct files_struct *fsp)
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{
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enum FAKE_FILE_TYPE type;
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if ((fsp == NULL) || (fsp->fake_file_handle == NULL)) {
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return false;
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}
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type = fsp->fake_file_handle->type;
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return ((type == FAKE_FILE_TYPE_NAMED_PIPE)
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|| (type == FAKE_FILE_TYPE_NAMED_PIPE_PROXY));
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}
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NTSTATUS np_open(TALLOC_CTX *mem_ctx, const char *name,
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const struct tsocket_address *local_address,
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const struct tsocket_address *remote_address,
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struct client_address *client_id,
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struct auth_serversupplied_info *session_info,
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struct messaging_context *msg_ctx,
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struct fake_file_handle **phandle)
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{
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const char *rpcsrv_type;
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const char **proxy_list;
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struct fake_file_handle *handle;
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bool external = false;
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proxy_list = lp_parm_string_list(-1, "np", "proxy", NULL);
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handle = talloc(mem_ctx, struct fake_file_handle);
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if (handle == NULL) {
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return NT_STATUS_NO_MEMORY;
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}
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/* Check what is the server type for this pipe.
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Defaults to "embedded" */
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rpcsrv_type = lp_parm_const_string(GLOBAL_SECTION_SNUM,
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"rpc_server", name,
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"embedded");
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if (StrCaseCmp(rpcsrv_type, "embedded") != 0) {
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external = true;
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}
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/* Still support the old method for defining external servers */
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if ((proxy_list != NULL) && str_list_check_ci(proxy_list, name)) {
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external = true;
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}
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if (external) {
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struct np_proxy_state *p;
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p = make_external_rpc_pipe_p(handle, name,
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local_address,
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remote_address,
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session_info);
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handle->type = FAKE_FILE_TYPE_NAMED_PIPE_PROXY;
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handle->private_data = p;
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} else {
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struct pipes_struct *p;
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struct ndr_syntax_id syntax;
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if (!is_known_pipename(name, &syntax)) {
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TALLOC_FREE(handle);
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return NT_STATUS_OBJECT_NAME_NOT_FOUND;
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}
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p = make_internal_rpc_pipe_p(handle, &syntax, client_id,
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session_info, msg_ctx);
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handle->type = FAKE_FILE_TYPE_NAMED_PIPE;
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handle->private_data = p;
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}
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if (handle->private_data == NULL) {
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TALLOC_FREE(handle);
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return NT_STATUS_PIPE_NOT_AVAILABLE;
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}
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*phandle = handle;
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return NT_STATUS_OK;
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}
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bool np_read_in_progress(struct fake_file_handle *handle)
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{
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if (handle->type == FAKE_FILE_TYPE_NAMED_PIPE) {
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return false;
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}
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if (handle->type == FAKE_FILE_TYPE_NAMED_PIPE_PROXY) {
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struct np_proxy_state *p = talloc_get_type_abort(
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handle->private_data, struct np_proxy_state);
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size_t read_count;
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read_count = tevent_queue_length(p->read_queue);
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if (read_count > 0) {
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return true;
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}
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return false;
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}
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return false;
|
|
}
|
|
|
|
struct np_write_state {
|
|
struct event_context *ev;
|
|
struct np_proxy_state *p;
|
|
struct iovec iov;
|
|
ssize_t nwritten;
|
|
};
|
|
|
|
static void np_write_done(struct tevent_req *subreq);
|
|
|
|
struct tevent_req *np_write_send(TALLOC_CTX *mem_ctx, struct event_context *ev,
|
|
struct fake_file_handle *handle,
|
|
const uint8_t *data, size_t len)
|
|
{
|
|
struct tevent_req *req;
|
|
struct np_write_state *state;
|
|
NTSTATUS status;
|
|
|
|
DEBUG(6, ("np_write_send: len: %d\n", (int)len));
|
|
dump_data(50, data, len);
|
|
|
|
req = tevent_req_create(mem_ctx, &state, struct np_write_state);
|
|
if (req == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
if (len == 0) {
|
|
state->nwritten = 0;
|
|
status = NT_STATUS_OK;
|
|
goto post_status;
|
|
}
|
|
|
|
if (handle->type == FAKE_FILE_TYPE_NAMED_PIPE) {
|
|
struct pipes_struct *p = talloc_get_type_abort(
|
|
handle->private_data, struct pipes_struct);
|
|
|
|
state->nwritten = write_to_internal_pipe(p, (const char *)data, len);
|
|
|
|
status = (state->nwritten >= 0)
|
|
? NT_STATUS_OK : NT_STATUS_UNEXPECTED_IO_ERROR;
|
|
goto post_status;
|
|
}
|
|
|
|
if (handle->type == FAKE_FILE_TYPE_NAMED_PIPE_PROXY) {
|
|
struct np_proxy_state *p = talloc_get_type_abort(
|
|
handle->private_data, struct np_proxy_state);
|
|
struct tevent_req *subreq;
|
|
|
|
state->ev = ev;
|
|
state->p = p;
|
|
state->iov.iov_base = discard_const_p(void, data);
|
|
state->iov.iov_len = len;
|
|
|
|
subreq = tstream_writev_queue_send(state, ev,
|
|
p->npipe,
|
|
p->write_queue,
|
|
&state->iov, 1);
|
|
if (subreq == NULL) {
|
|
goto fail;
|
|
}
|
|
tevent_req_set_callback(subreq, np_write_done, req);
|
|
return req;
|
|
}
|
|
|
|
status = NT_STATUS_INVALID_HANDLE;
|
|
post_status:
|
|
if (NT_STATUS_IS_OK(status)) {
|
|
tevent_req_done(req);
|
|
} else {
|
|
tevent_req_nterror(req, status);
|
|
}
|
|
return tevent_req_post(req, ev);
|
|
fail:
|
|
TALLOC_FREE(req);
|
|
return NULL;
|
|
}
|
|
|
|
static void np_write_done(struct tevent_req *subreq)
|
|
{
|
|
struct tevent_req *req = tevent_req_callback_data(
|
|
subreq, struct tevent_req);
|
|
struct np_write_state *state = tevent_req_data(
|
|
req, struct np_write_state);
|
|
ssize_t received;
|
|
int err;
|
|
|
|
received = tstream_writev_queue_recv(subreq, &err);
|
|
if (received < 0) {
|
|
tevent_req_nterror(req, map_nt_error_from_unix(err));
|
|
return;
|
|
}
|
|
state->nwritten = received;
|
|
tevent_req_done(req);
|
|
}
|
|
|
|
NTSTATUS np_write_recv(struct tevent_req *req, ssize_t *pnwritten)
|
|
{
|
|
struct np_write_state *state = tevent_req_data(
|
|
req, struct np_write_state);
|
|
NTSTATUS status;
|
|
|
|
if (tevent_req_is_nterror(req, &status)) {
|
|
return status;
|
|
}
|
|
*pnwritten = state->nwritten;
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
struct np_ipc_readv_next_vector_state {
|
|
uint8_t *buf;
|
|
size_t len;
|
|
off_t ofs;
|
|
size_t remaining;
|
|
};
|
|
|
|
static void np_ipc_readv_next_vector_init(struct np_ipc_readv_next_vector_state *s,
|
|
uint8_t *buf, size_t len)
|
|
{
|
|
ZERO_STRUCTP(s);
|
|
|
|
s->buf = buf;
|
|
s->len = MIN(len, UINT16_MAX);
|
|
}
|
|
|
|
static int np_ipc_readv_next_vector(struct tstream_context *stream,
|
|
void *private_data,
|
|
TALLOC_CTX *mem_ctx,
|
|
struct iovec **_vector,
|
|
size_t *count)
|
|
{
|
|
struct np_ipc_readv_next_vector_state *state =
|
|
(struct np_ipc_readv_next_vector_state *)private_data;
|
|
struct iovec *vector;
|
|
ssize_t pending;
|
|
size_t wanted;
|
|
|
|
if (state->ofs == state->len) {
|
|
*_vector = NULL;
|
|
*count = 0;
|
|
return 0;
|
|
}
|
|
|
|
pending = tstream_pending_bytes(stream);
|
|
if (pending == -1) {
|
|
return -1;
|
|
}
|
|
|
|
if (pending == 0 && state->ofs != 0) {
|
|
/* return a short read */
|
|
*_vector = NULL;
|
|
*count = 0;
|
|
return 0;
|
|
}
|
|
|
|
if (pending == 0) {
|
|
/* we want at least one byte and recheck again */
|
|
wanted = 1;
|
|
} else {
|
|
size_t missing = state->len - state->ofs;
|
|
if (pending > missing) {
|
|
/* there's more available */
|
|
state->remaining = pending - missing;
|
|
wanted = missing;
|
|
} else {
|
|
/* read what we can get and recheck in the next cycle */
|
|
wanted = pending;
|
|
}
|
|
}
|
|
|
|
vector = talloc_array(mem_ctx, struct iovec, 1);
|
|
if (!vector) {
|
|
return -1;
|
|
}
|
|
|
|
vector[0].iov_base = state->buf + state->ofs;
|
|
vector[0].iov_len = wanted;
|
|
|
|
state->ofs += wanted;
|
|
|
|
*_vector = vector;
|
|
*count = 1;
|
|
return 0;
|
|
}
|
|
|
|
struct np_read_state {
|
|
struct np_proxy_state *p;
|
|
struct np_ipc_readv_next_vector_state next_vector;
|
|
|
|
size_t nread;
|
|
bool is_data_outstanding;
|
|
};
|
|
|
|
static void np_read_done(struct tevent_req *subreq);
|
|
|
|
struct tevent_req *np_read_send(TALLOC_CTX *mem_ctx, struct event_context *ev,
|
|
struct fake_file_handle *handle,
|
|
uint8_t *data, size_t len)
|
|
{
|
|
struct tevent_req *req;
|
|
struct np_read_state *state;
|
|
NTSTATUS status;
|
|
|
|
req = tevent_req_create(mem_ctx, &state, struct np_read_state);
|
|
if (req == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
if (handle->type == FAKE_FILE_TYPE_NAMED_PIPE) {
|
|
struct pipes_struct *p = talloc_get_type_abort(
|
|
handle->private_data, struct pipes_struct);
|
|
|
|
state->nread = read_from_internal_pipe(
|
|
p, (char *)data, len, &state->is_data_outstanding);
|
|
|
|
status = (state->nread >= 0)
|
|
? NT_STATUS_OK : NT_STATUS_UNEXPECTED_IO_ERROR;
|
|
goto post_status;
|
|
}
|
|
|
|
if (handle->type == FAKE_FILE_TYPE_NAMED_PIPE_PROXY) {
|
|
struct np_proxy_state *p = talloc_get_type_abort(
|
|
handle->private_data, struct np_proxy_state);
|
|
struct tevent_req *subreq;
|
|
|
|
np_ipc_readv_next_vector_init(&state->next_vector,
|
|
data, len);
|
|
|
|
subreq = tstream_readv_pdu_queue_send(state,
|
|
ev,
|
|
p->npipe,
|
|
p->read_queue,
|
|
np_ipc_readv_next_vector,
|
|
&state->next_vector);
|
|
if (subreq == NULL) {
|
|
status = NT_STATUS_NO_MEMORY;
|
|
goto post_status;
|
|
}
|
|
tevent_req_set_callback(subreq, np_read_done, req);
|
|
return req;
|
|
}
|
|
|
|
status = NT_STATUS_INVALID_HANDLE;
|
|
post_status:
|
|
if (NT_STATUS_IS_OK(status)) {
|
|
tevent_req_done(req);
|
|
} else {
|
|
tevent_req_nterror(req, status);
|
|
}
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
static void np_read_done(struct tevent_req *subreq)
|
|
{
|
|
struct tevent_req *req = tevent_req_callback_data(
|
|
subreq, struct tevent_req);
|
|
struct np_read_state *state = tevent_req_data(
|
|
req, struct np_read_state);
|
|
ssize_t ret;
|
|
int err;
|
|
|
|
ret = tstream_readv_pdu_queue_recv(subreq, &err);
|
|
TALLOC_FREE(subreq);
|
|
if (ret == -1) {
|
|
tevent_req_nterror(req, map_nt_error_from_unix(err));
|
|
return;
|
|
}
|
|
|
|
state->nread = ret;
|
|
state->is_data_outstanding = (state->next_vector.remaining > 0);
|
|
|
|
tevent_req_done(req);
|
|
return;
|
|
}
|
|
|
|
NTSTATUS np_read_recv(struct tevent_req *req, ssize_t *nread,
|
|
bool *is_data_outstanding)
|
|
{
|
|
struct np_read_state *state = tevent_req_data(
|
|
req, struct np_read_state);
|
|
NTSTATUS status;
|
|
|
|
if (tevent_req_is_nterror(req, &status)) {
|
|
return status;
|
|
}
|
|
|
|
DEBUG(10, ("Received %d bytes. There is %smore data outstanding\n",
|
|
(int)state->nread, state->is_data_outstanding?"":"no "));
|
|
|
|
*nread = state->nread;
|
|
*is_data_outstanding = state->is_data_outstanding;
|
|
return NT_STATUS_OK;
|
|
}
|