[ Upstream commit 5bedae90b369ca1a7660b9af39591ed19009b495 ]
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 --- fs/ksmbd/auth.c | 3 +++ fs/ksmbd/smb2pdu.c | 2 +- fs/ksmbd/smb2pdu.h | 1 + 3 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/fs/ksmbd/auth.c b/fs/ksmbd/auth.c index 45f0e9a75e63..bad4c3af9540 100644 --- a/fs/ksmbd/auth.c +++ b/fs/ksmbd/auth.c @@ -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;
diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c index 933f806f14dc..8151f7782329 100644 --- a/fs/ksmbd/smb2pdu.c +++ b/fs/ksmbd/smb2pdu.c @@ -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; diff --git a/fs/ksmbd/smb2pdu.h b/fs/ksmbd/smb2pdu.h index fe391b8afa9c..e20d4d707f1b 100644 --- a/fs/ksmbd/smb2pdu.h +++ b/fs/ksmbd/smb2pdu.h @@ -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);