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/*
   Unix SMB/CIFS implementation.
   Infrastructure for async SMB client requests
   Copyright (C) Volker Lendecke 2008
   Copyright (C) Stefan Metzmacher 2011

   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/>.
*/

#ifndef _SMBXCLI_BASE_H_
#define _SMBXCLI_BASE_H_

struct smbXcli_conn;
struct smb_trans_enc_state;

struct smbXcli_conn *smbXcli_conn_create(TALLOC_CTX *mem_ctx,
					 int fd,
					 const char *remote_name,
					 enum smb_signing_setting signing_state,
					 uint32_t smb1_capabilities);

bool smbXcli_conn_is_connected(struct smbXcli_conn *conn);
void smbXcli_conn_disconnect(struct smbXcli_conn *conn, NTSTATUS status);

bool smbXcli_conn_has_async_calls(struct smbXcli_conn *conn);

enum protocol_types smbXcli_conn_protocol(struct smbXcli_conn *conn);
bool smbXcli_conn_use_unicode(struct smbXcli_conn *conn);

void smbXcli_conn_set_sockopt(struct smbXcli_conn *conn, const char *options);
const struct sockaddr_storage *smbXcli_conn_local_sockaddr(struct smbXcli_conn *conn);
const struct sockaddr_storage *smbXcli_conn_remote_sockaddr(struct smbXcli_conn *conn);
const char *smbXcli_conn_remote_name(struct smbXcli_conn *conn);

void smbXcli_req_unset_pending(struct tevent_req *req);
bool smbXcli_req_set_pending(struct tevent_req *req);

bool smb1cli_conn_activate_signing(struct smbXcli_conn *conn,
				   const DATA_BLOB user_session_key,
				   const DATA_BLOB response);
bool smb1cli_conn_check_signing(struct smbXcli_conn *conn,
				const uint8_t *buf, uint32_t seqnum);
bool smb1cli_conn_signing_is_active(struct smbXcli_conn *conn);

void smb1cli_conn_set_encryption(struct smbXcli_conn *conn,
				 struct smb_trans_enc_state *es);
bool smb1cli_conn_encryption_on(struct smbXcli_conn *conn);

bool smb1cli_is_andx_req(uint8_t cmd);
size_t smb1cli_req_wct_ofs(struct tevent_req **reqs, int num_reqs);

uint16_t smb1cli_req_mid(struct tevent_req *req);
void smb1cli_req_set_mid(struct tevent_req *req, uint16_t mid);

uint32_t smb1cli_req_seqnum(struct tevent_req *req);
void smb1cli_req_set_seqnum(struct tevent_req *req, uint32_t seqnum);

struct tevent_req *smb1cli_req_create(TALLOC_CTX *mem_ctx,
				      struct tevent_context *ev,
				      struct smbXcli_conn *conn,
				      uint8_t smb_command,
				      uint8_t additional_flags,
				      uint8_t clear_flags,
				      uint16_t additional_flags2,
				      uint16_t clear_flags2,
				      uint32_t timeout_msec,
				      uint32_t pid,
				      uint16_t tid,
				      uint16_t uid,
				      uint8_t wct, uint16_t *vwv,
				      int iov_count,
				      struct iovec *bytes_iov);
NTSTATUS smb1cli_req_chain_submit(struct tevent_req **reqs, int num_reqs);

struct tevent_req *smb1cli_req_send(TALLOC_CTX *mem_ctx,
				    struct tevent_context *ev,
				    struct smbXcli_conn *conn,
				    uint8_t smb_command,
				    uint8_t additional_flags,
				    uint8_t clear_flags,
				    uint16_t additional_flags2,
				    uint16_t clear_flags2,
				    uint32_t timeout_msec,
				    uint32_t pid,
				    uint16_t tid,
				    uint16_t uid,
				    uint8_t wct, uint16_t *vwv,
				    uint32_t num_bytes,
				    const uint8_t *bytes);
NTSTATUS smb1cli_req_recv(struct tevent_req *req,
			  TALLOC_CTX *mem_ctx, uint8_t **pinbuf,
			  uint8_t min_wct, uint8_t *pwct, uint16_t **pvwv,
			  uint32_t *pnum_bytes, uint8_t **pbytes);

#endif /* _SMBXCLI_BASE_H_ */