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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * Copyright (C) 2018 Samsung Electronics Co., Ltd.4 */5 6#ifndef __USER_SESSION_MANAGEMENT_H__7#define __USER_SESSION_MANAGEMENT_H__8 9#include <linux/hashtable.h>10#include <linux/xarray.h>11 12#include "../smb_common.h"13#include "../ntlmssp.h"14 15#define CIFDS_SESSION_FLAG_SMB2 BIT(1)16 17#define PREAUTH_HASHVALUE_SIZE 6418 19struct ksmbd_file_table;20 21struct channel {22 __u8 smb3signingkey[SMB3_SIGN_KEY_SIZE];23 struct ksmbd_conn *conn;24};25 26struct preauth_session {27 __u8 Preauth_HashValue[PREAUTH_HASHVALUE_SIZE];28 u64 id;29 struct list_head preauth_entry;30};31 32struct ksmbd_session {33 u64 id;34 35 __u16 dialect;36 char ClientGUID[SMB2_CLIENT_GUID_SIZE];37 38 struct ksmbd_user *user;39 unsigned int sequence_number;40 unsigned int flags;41 42 bool sign;43 bool enc;44 bool is_anonymous;45 46 int state;47 __u8 *Preauth_HashValue;48 49 char sess_key[CIFS_KEY_SIZE];50 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;56 57 __u8 smb3encryptionkey[SMB3_ENC_DEC_KEY_SIZE];58 __u8 smb3decryptionkey[SMB3_ENC_DEC_KEY_SIZE];59 __u8 smb3signingkey[SMB3_SIGN_KEY_SIZE];60 61 struct ksmbd_file_table file_table;62 unsigned long last_active;63 rwlock_t tree_conns_lock;64 65 atomic_t refcnt;66};67 68static inline int test_session_flag(struct ksmbd_session *sess, int bit)69{70 return sess->flags & bit;71}72 73static inline void set_session_flag(struct ksmbd_session *sess, int bit)74{75 sess->flags |= bit;76}77 78static inline void clear_session_flag(struct ksmbd_session *sess, int bit)79{80 sess->flags &= ~bit;81}82 83struct ksmbd_session *ksmbd_smb2_session_create(void);84 85void ksmbd_session_destroy(struct ksmbd_session *sess);86 87struct ksmbd_session *ksmbd_session_lookup_slowpath(unsigned long long id);88struct ksmbd_session *ksmbd_session_lookup(struct ksmbd_conn *conn,89 unsigned long long id);90int ksmbd_session_register(struct ksmbd_conn *conn,91 struct ksmbd_session *sess);92void ksmbd_sessions_deregister(struct ksmbd_conn *conn);93struct ksmbd_session *__session_lookup(unsigned long long id);94struct ksmbd_session *ksmbd_session_lookup_all(struct ksmbd_conn *conn,95 unsigned long long id);96void destroy_previous_session(struct ksmbd_conn *conn,97 struct ksmbd_user *user, u64 id);98struct preauth_session *ksmbd_preauth_session_alloc(struct ksmbd_conn *conn,99 u64 sess_id);100struct preauth_session *ksmbd_preauth_session_lookup(struct ksmbd_conn *conn,101 unsigned long long id);102 103int ksmbd_acquire_tree_conn_id(struct ksmbd_session *sess);104void ksmbd_release_tree_conn_id(struct ksmbd_session *sess, int id);105 106int ksmbd_session_rpc_open(struct ksmbd_session *sess, char *rpc_name);107void ksmbd_session_rpc_close(struct ksmbd_session *sess, int id);108int ksmbd_session_rpc_method(struct ksmbd_session *sess, int id);109void ksmbd_user_session_get(struct ksmbd_session *sess);110void ksmbd_user_session_put(struct ksmbd_session *sess);111#endif /* __USER_SESSION_MANAGEMENT_H__ */112