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af705ef2b0
If client send encrypted session logoff request on seal mount, Encryption for that response fails. ksmbd: Could not get encryption key CIFS: VFS: cifs_put_smb_ses: Session Logoff failure rc=-512 Session lookup fails in ksmbd_get_encryption_key() because sess->state is set to SMB2_SESSION_EXPIRED in session logoff. There is no need to do session lookup again to encrypt the response. This patch change to use ksmbd_session in ksmbd_work. Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
71 lines
2.3 KiB
C
71 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2018 Samsung Electronics Co., Ltd.
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*/
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#ifndef __AUTH_H__
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#define __AUTH_H__
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#include "ntlmssp.h"
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#ifdef CONFIG_SMB_SERVER_KERBEROS5
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#define AUTH_GSS_LENGTH 96
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#define AUTH_GSS_PADDING 0
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#else
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#define AUTH_GSS_LENGTH 74
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#define AUTH_GSS_PADDING 6
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#endif
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#define CIFS_HMAC_MD5_HASH_SIZE (16)
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#define CIFS_NTHASH_SIZE (16)
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/*
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* Size of the ntlm client response
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*/
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#define CIFS_AUTH_RESP_SIZE 24
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#define CIFS_SMB1_SIGNATURE_SIZE 8
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#define CIFS_SMB1_SESSKEY_SIZE 16
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#define KSMBD_AUTH_NTLMSSP 0x0001
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#define KSMBD_AUTH_KRB5 0x0002
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#define KSMBD_AUTH_MSKRB5 0x0004
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#define KSMBD_AUTH_KRB5U2U 0x0008
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struct ksmbd_session;
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struct ksmbd_conn;
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struct ksmbd_work;
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struct kvec;
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int ksmbd_crypt_message(struct ksmbd_work *work, struct kvec *iov,
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unsigned int nvec, int enc);
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void ksmbd_copy_gss_neg_header(void *buf);
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int ksmbd_auth_ntlmv2(struct ksmbd_conn *conn, struct ksmbd_session *sess,
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struct ntlmv2_resp *ntlmv2, int blen, char *domain_name,
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char *cryptkey);
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int ksmbd_decode_ntlmssp_auth_blob(struct authenticate_message *authblob,
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int blob_len, struct ksmbd_conn *conn,
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struct ksmbd_session *sess);
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int ksmbd_decode_ntlmssp_neg_blob(struct negotiate_message *negblob,
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int blob_len, struct ksmbd_conn *conn);
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unsigned int
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ksmbd_build_ntlmssp_challenge_blob(struct challenge_message *chgblob,
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struct ksmbd_conn *conn);
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int ksmbd_krb5_authenticate(struct ksmbd_session *sess, char *in_blob,
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int in_len, char *out_blob, int *out_len);
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int ksmbd_sign_smb2_pdu(struct ksmbd_conn *conn, char *key, struct kvec *iov,
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int n_vec, char *sig);
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int ksmbd_sign_smb3_pdu(struct ksmbd_conn *conn, char *key, struct kvec *iov,
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int n_vec, char *sig);
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int ksmbd_gen_smb30_signingkey(struct ksmbd_session *sess,
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struct ksmbd_conn *conn);
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int ksmbd_gen_smb311_signingkey(struct ksmbd_session *sess,
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struct ksmbd_conn *conn);
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int ksmbd_gen_smb30_encryptionkey(struct ksmbd_conn *conn,
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struct ksmbd_session *sess);
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int ksmbd_gen_smb311_encryptionkey(struct ksmbd_conn *conn,
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struct ksmbd_session *sess);
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int ksmbd_gen_preauth_integrity_hash(struct ksmbd_conn *conn, char *buf,
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__u8 *pi_hash);
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int ksmbd_gen_sd_hash(struct ksmbd_conn *conn, char *sd_buf, int len,
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__u8 *pi_hash);
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#endif
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