1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Copyright (C) 2018 Samsung Electronics Co., Ltd.
6 #ifndef __USER_SESSION_MANAGEMENT_H__
7 #define __USER_SESSION_MANAGEMENT_H__
9 #include <linux/hashtable.h>
10 #include <linux/xarray.h>
12 #include "../smb_common.h"
13 #include "../ntlmssp.h"
15 #define CIFDS_SESSION_FLAG_SMB2 BIT(1)
17 #define PREAUTH_HASHVALUE_SIZE 64
19 struct ksmbd_file_table
;
22 __u8 smb3signingkey
[SMB3_SIGN_KEY_SIZE
];
23 struct ksmbd_conn
*conn
;
26 struct preauth_session
{
27 __u8 Preauth_HashValue
[PREAUTH_HASHVALUE_SIZE
];
29 struct list_head preauth_entry
;
32 struct ksmbd_session
{
36 char ClientGUID
[SMB2_CLIENT_GUID_SIZE
];
38 struct ksmbd_user
*user
;
39 unsigned int sequence_number
;
47 __u8
*Preauth_HashValue
;
49 char sess_key
[CIFS_KEY_SIZE
];
51 struct hlist_node hlist
;
52 struct xarray ksmbd_chann_list
;
53 struct xarray tree_conns
;
54 struct ida tree_conn_ida
;
55 struct xarray rpc_handle_list
;
57 __u8 smb3encryptionkey
[SMB3_ENC_DEC_KEY_SIZE
];
58 __u8 smb3decryptionkey
[SMB3_ENC_DEC_KEY_SIZE
];
59 __u8 smb3signingkey
[SMB3_SIGN_KEY_SIZE
];
61 struct ksmbd_file_table file_table
;
62 unsigned long last_active
;
63 rwlock_t tree_conns_lock
;
66 static inline int test_session_flag(struct ksmbd_session
*sess
, int bit
)
68 return sess
->flags
& bit
;
71 static inline void set_session_flag(struct ksmbd_session
*sess
, int bit
)
76 static inline void clear_session_flag(struct ksmbd_session
*sess
, int bit
)
81 struct ksmbd_session
*ksmbd_smb2_session_create(void);
83 void ksmbd_session_destroy(struct ksmbd_session
*sess
);
85 struct ksmbd_session
*ksmbd_session_lookup_slowpath(unsigned long long id
);
86 struct ksmbd_session
*ksmbd_session_lookup(struct ksmbd_conn
*conn
,
87 unsigned long long id
);
88 int ksmbd_session_register(struct ksmbd_conn
*conn
,
89 struct ksmbd_session
*sess
);
90 void ksmbd_sessions_deregister(struct ksmbd_conn
*conn
);
91 struct ksmbd_session
*ksmbd_session_lookup_all(struct ksmbd_conn
*conn
,
92 unsigned long long id
);
93 struct preauth_session
*ksmbd_preauth_session_alloc(struct ksmbd_conn
*conn
,
95 struct preauth_session
*ksmbd_preauth_session_lookup(struct ksmbd_conn
*conn
,
96 unsigned long long id
);
98 int ksmbd_acquire_tree_conn_id(struct ksmbd_session
*sess
);
99 void ksmbd_release_tree_conn_id(struct ksmbd_session
*sess
, int id
);
101 int ksmbd_session_rpc_open(struct ksmbd_session
*sess
, char *rpc_name
);
102 void ksmbd_session_rpc_close(struct ksmbd_session
*sess
, int id
);
103 int ksmbd_session_rpc_method(struct ksmbd_session
*sess
, int id
);
104 #endif /* __USER_SESSION_MANAGEMENT_H__ */