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This should be used to negotiate the may fragment size of DCERPC connections. Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
73 lines
2.5 KiB
C
73 lines
2.5 KiB
C
/*
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Unix SMB/CIFS implementation.
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Copyright (C) Stefan Metzmacher 2010
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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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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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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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#ifndef _CLI_NP_TSTREAM_H_
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#define _CLI_NP_TSTREAM_H_
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struct tevent_context;
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struct tevent_req;
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struct tstream_context;
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struct smbXcli_conn;
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struct smbXcli_session;
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struct smbXcli_tcon;
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struct tevent_req *tstream_smbXcli_np_open_send(TALLOC_CTX *mem_ctx,
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struct tevent_context *ev,
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struct smbXcli_conn *conn,
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struct smbXcli_session *session,
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struct smbXcli_tcon *tcon,
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uint16_t pid,
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unsigned int timeout,
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const char *npipe);
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NTSTATUS _tstream_smbXcli_np_open_recv(struct tevent_req *req,
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TALLOC_CTX *mem_ctx,
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struct tstream_context **_stream,
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const char *location);
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#define tstream_smbXcli_np_open_recv(req, mem_ctx, stream) \
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_tstream_smbXcli_np_open_recv(req, mem_ctx, stream, __location__)
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bool tstream_is_smbXcli_np(struct tstream_context *stream);
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NTSTATUS tstream_smbXcli_np_use_trans(struct tstream_context *stream);
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unsigned int tstream_smbXcli_np_set_timeout(struct tstream_context *stream,
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unsigned int timeout);
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/*
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* Windows uses 4280 (the max xmit/recv size negotiated on DCERPC).
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* This is fits into the max_xmit negotiated at the SMB layer.
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*
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* On the sending side they may use SMBtranss if the request does not
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* fit into a single SMBtrans call.
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*
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* Windows uses 1024 as max data size of a SMBtrans request and then
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* possibly reads the rest of the DCERPC fragment (up to 3256 bytes)
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* via a SMBreadX.
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*
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* For now we just ask for the full 4280 bytes (max data size) in the SMBtrans
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* request to get the whole fragment at once (like samba 3.5.x and below did.
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*
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* It is important that we use do SMBwriteX with the size of a full fragment,
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* otherwise we may get NT_STATUS_PIPE_BUSY on the SMBtrans request
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* from NT4 servers. (See bug #8195)
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*/
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#define TSTREAM_SMBXCLI_NP_MAX_BUF_SIZE 4280
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#endif /* _CLI_NP_TSTREAM_H_ */
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