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Namjae Jeone2f34482021-03-16 10:49:09 +09001/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Copyright (C) 2018 Samsung Electronics Co., Ltd.
4 */
5
6#ifndef __KSMBD_IDA_MANAGEMENT_H__
7#define __KSMBD_IDA_MANAGEMENT_H__
8
9#include <linux/slab.h>
10#include <linux/idr.h>
11
Namjae Jeone2f34482021-03-16 10:49:09 +090012/*
13 * 2.2.1.6.7 TID Generation
14 * The value 0xFFFF MUST NOT be used as a valid TID. All other
15 * possible values for TID, including zero (0x0000), are valid.
16 * The value 0xFFFF is used to specify all TIDs or no TID,
17 * depending upon the context in which it is used.
18 */
Namjae Jeond40012a2021-04-13 13:06:30 +090019int ksmbd_acquire_smb2_tid(struct ida *ida);
Namjae Jeone2f34482021-03-16 10:49:09 +090020
21/*
22 * 2.2.1.6.8 UID Generation
23 * The value 0xFFFE was declared reserved in the LAN Manager 1.0
24 * documentation, so a value of 0xFFFE SHOULD NOT be used as a
25 * valid UID.<21> All other possible values for a UID, excluding
26 * zero (0x0000), are valid.
27 */
Namjae Jeond40012a2021-04-13 13:06:30 +090028int ksmbd_acquire_smb2_uid(struct ida *ida);
29int ksmbd_acquire_async_msg_id(struct ida *ida);
Namjae Jeone2f34482021-03-16 10:49:09 +090030
Namjae Jeond40012a2021-04-13 13:06:30 +090031int ksmbd_acquire_id(struct ida *ida);
Namjae Jeone2f34482021-03-16 10:49:09 +090032
Namjae Jeond40012a2021-04-13 13:06:30 +090033void ksmbd_release_id(struct ida *ida, int id);
Namjae Jeone2f34482021-03-16 10:49:09 +090034#endif /* __KSMBD_IDA_MANAGEMENT_H__ */