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ksmbd: set NTLMSSP_NEGOTIATE_SEAL flag to challenge blob

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[ Upstream commit 5bedae90b3 ]

If NTLMSSP_NEGOTIATE_SEAL flags is set in negotiate blob from client,
Set NTLMSSP_NEGOTIATE_SEAL flag to challenge blob.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Namjae Jeon
2023-12-19 00:33:17 +09:00
committed by Greg Kroah-Hartman
parent 4d796ff899
commit d5a3b1024a
3 changed files with 5 additions and 1 deletions
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3
fs/ksmbd/auth.c
View File

@@ -428,6 +428,9 @@ ksmbd_build_ntlmssp_challenge_blob(struct challenge_message *chgblob,
NTLMSSP_NEGOTIATE_56);
}
if (cflags & NTLMSSP_NEGOTIATE_SEAL && smb3_encryption_negotiated(conn))
flags |= NTLMSSP_NEGOTIATE_SEAL;
if (cflags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN)
flags |= NTLMSSP_NEGOTIATE_ALWAYS_SIGN;

2
fs/ksmbd/smb2pdu.c
View File

@@ -956,7 +956,7 @@ static void decode_encrypt_ctxt(struct ksmbd_conn *conn,
*
* Return: true if connection should be encrypted, else false
*/
static bool smb3_encryption_negotiated(struct ksmbd_conn *conn)
bool smb3_encryption_negotiated(struct ksmbd_conn *conn)
{
if (!conn->ops->generate_encryptionkey)
return false;

1
fs/ksmbd/smb2pdu.h
View File

@@ -1672,6 +1672,7 @@ int smb3_decrypt_req(struct ksmbd_work *work);
int smb3_encrypt_resp(struct ksmbd_work *work);
bool smb3_11_final_sess_setup_resp(struct ksmbd_work *work);
int smb2_set_rsp_credits(struct ksmbd_work *work);
bool smb3_encryption_negotiated(struct ksmbd_conn *conn);
/* smb2 misc functions */
int ksmbd_smb2_check_message(struct ksmbd_work *work);