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}; 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 66static inline int test_session_flag(struct ksmbd_session *sess, int bit) 67{ 68 return sess->flags & bit; 69} 70 71static inline void set_session_flag(struct ksmbd_session *sess, int bit) 72{ 73 sess->flags |= bit; 74} 75 76static inline void clear_session_flag(struct ksmbd_session *sess, int bit) 77{ 78 sess->flags &= ~bit; 79} 80 81struct ksmbd_session *ksmbd_smb2_session_create(void); 82 83void ksmbd_session_destroy(struct ksmbd_session *sess); 84 85struct ksmbd_session *ksmbd_session_lookup_slowpath(unsigned long long id); 86struct ksmbd_session *ksmbd_session_lookup(struct ksmbd_conn *conn, 87 unsigned long long id); 88int ksmbd_session_register(struct ksmbd_conn *conn, 89 struct ksmbd_session *sess); 90void ksmbd_sessions_deregister(struct ksmbd_conn *conn); 91struct ksmbd_session *__session_lookup(unsigned long long id); 92struct ksmbd_session *ksmbd_session_lookup_all(struct ksmbd_conn *conn, 93 unsigned long long id); 94void destroy_previous_session(struct ksmbd_conn *conn, 95 struct ksmbd_user *user, u64 id); 96struct preauth_session *ksmbd_preauth_session_alloc(struct ksmbd_conn *conn, 97 u64 sess_id); 98struct preauth_session *ksmbd_preauth_session_lookup(struct ksmbd_conn *conn, 99 unsigned long long id); 100 101int ksmbd_acquire_tree_conn_id(struct ksmbd_session *sess); 102void ksmbd_release_tree_conn_id(struct ksmbd_session *sess, int id); 103 104int ksmbd_session_rpc_open(struct ksmbd_session *sess, char *rpc_name); 105void ksmbd_session_rpc_close(struct ksmbd_session *sess, int id); 106int ksmbd_session_rpc_method(struct ksmbd_session *sess, int id); 107#endif /* __USER_SESSION_MANAGEMENT_H__ */ 108