jborean93
commented
1 year ago Hmm based on your output the error is failing on the first message being sent, the SMB2 Negotiate Request. This might indicate that we are sending a value that the NAS is unable to parse but without having the box to test with it's hard for me to tell.
Can you try the following and let me know what ones pass and which ones fail?
import traceback
import uuid
from smbprotocol import Dialects
from smbprotocol.connection import Connection
for dialect in [Dialects.SMB_3_1_1, Dialects.SMB_3_0_2, Dialects.SMB_2_1_0]:
conn = Connection(uuid.uuid4(), "server2022.domain.test", 445)
try:
conn.connect(dialect=dialect)
except Exception as e:
print(f"Dialect 0x{dialect:04X} failed")
traceback.print_exc()
else:
conn.disconnect()
print(f"Dialect 0x{dialect:04X} successful")If all but Dialect 0x0311 pass can you then try
import traceback
import uuid
from smbprotocol import Dialects
from smbprotocol.connection import Connection, Ciphers, SigningAlgorithms
conn = Connection(uuid.uuid4(), "server2022.domain.test", 445)
try:
conn.connect(
dialect=Dialects.SMB_3_1_1,
preferred_encryption_algos=[Ciphers.AES_128_GCM, Ciphers.AES_128_CCM],
preferred_signing_algos=[SigningAlgorithms.AES_CMAC],
)
except Exception as e:
print("Failure")
traceback.print_exc()
else:
conn.disconnect()
print("Success")Another option is to enable debug logging for Samba on your Synology box to see if it gives more info as to why it rejected the negotiate request. Seeing if there are any updates available would be good. I believe in the past some older Samba versions rejected a message with the SMB2_NETNAME_NEGOTIATE_CONTEXT_ID which newer Windows versions sent. This was a bug on their side and should be fixed in newer versions on Samba.
Finally you can use Wireshark to compare the first SMB request sent by smbprotocol vs something like Windows. If you can share the capture that would be great. Otherwise comparing the Negotiate Protocol Request between what works and what doesn't will hopefully pick up on something different.
Boris-Sachet
I've been trying to connect to a smb share in python 3.10 from ubuntu 22.04 to my Synology NAS (DS218 on DSM 7.1.1-42962 Update 1) and I got this error with a simple test code:
I tried with a few variations in the path string, a raw string string, with and without the auth_protocol="ntlm" param, with no better success.
Full traceback
The SMB is configured on the NAS to accept SMB1, SMB2, SMB2 and Large MTU and SMB3, encryption is defined by the client.
Packages list on the venv
I looked at issues #89 and #112 but I couldn't find any fitting solution in them