cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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user_session.h (2859B)

      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		64
     18
     19struct ksmbd_file_table;
     20
     21struct channel {
     22	__u8			smb3signingkey[SMB3_SIGN_KEY_SIZE];
     23	struct ksmbd_conn	*conn;
     24	struct list_head	chann_list;
     25};
     26
     27struct preauth_session {
     28	__u8			Preauth_HashValue[PREAUTH_HASHVALUE_SIZE];
     29	u64			id;
     30	struct list_head	preauth_entry;
     31};
     32
     33struct ksmbd_session {
     34	u64				id;
     35
     36	struct ksmbd_user		*user;
     37	struct ksmbd_conn		*conn;
     38	unsigned int			sequence_number;
     39	unsigned int			flags;
     40
     41	bool				sign;
     42	bool				enc;
     43	bool				is_anonymous;
     44
     45	int				state;
     46	__u8				*Preauth_HashValue;
     47
     48	char				sess_key[CIFS_KEY_SIZE];
     49
     50	struct hlist_node		hlist;
     51	struct list_head		ksmbd_chann_list;
     52	struct xarray			tree_conns;
     53	struct ida			tree_conn_ida;
     54	struct list_head		rpc_handle_list;
     55
     56	__u8				smb3encryptionkey[SMB3_ENC_DEC_KEY_SIZE];
     57	__u8				smb3decryptionkey[SMB3_ENC_DEC_KEY_SIZE];
     58	__u8				smb3signingkey[SMB3_SIGN_KEY_SIZE];
     59
     60	struct list_head		sessions_entry;
     61	struct ksmbd_file_table		file_table;
     62	atomic_t			refcnt;
     63};
     64
     65static inline int test_session_flag(struct ksmbd_session *sess, int bit)
     66{
     67	return sess->flags & bit;
     68}
     69
     70static inline void set_session_flag(struct ksmbd_session *sess, int bit)
     71{
     72	sess->flags |= bit;
     73}
     74
     75static inline void clear_session_flag(struct ksmbd_session *sess, int bit)
     76{
     77	sess->flags &= ~bit;
     78}
     79
     80struct ksmbd_session *ksmbd_smb2_session_create(void);
     81
     82void ksmbd_session_destroy(struct ksmbd_session *sess);
     83
     84struct ksmbd_session *ksmbd_session_lookup_slowpath(unsigned long long id);
     85struct ksmbd_session *ksmbd_session_lookup(struct ksmbd_conn *conn,
     86					   unsigned long long id);
     87void ksmbd_session_register(struct ksmbd_conn *conn,
     88			    struct ksmbd_session *sess);
     89void ksmbd_sessions_deregister(struct ksmbd_conn *conn);
     90struct ksmbd_session *ksmbd_session_lookup_all(struct ksmbd_conn *conn,
     91					       unsigned long long id);
     92struct preauth_session *ksmbd_preauth_session_alloc(struct ksmbd_conn *conn,
     93						    u64 sess_id);
     94struct preauth_session *ksmbd_preauth_session_lookup(struct ksmbd_conn *conn,
     95						     unsigned long long id);
     96
     97int ksmbd_acquire_tree_conn_id(struct ksmbd_session *sess);
     98void ksmbd_release_tree_conn_id(struct ksmbd_session *sess, int id);
     99
    100int ksmbd_session_rpc_open(struct ksmbd_session *sess, char *rpc_name);
    101void ksmbd_session_rpc_close(struct ksmbd_session *sess, int id);
    102int ksmbd_session_rpc_method(struct ksmbd_session *sess, int id);
    103int get_session(struct ksmbd_session *sess);
    104void put_session(struct ksmbd_session *sess);
    105#endif /* __USER_SESSION_MANAGEMENT_H__ */