| Bug ID |
13034
|
| Summary |
NBD dissector outdated
|
| Product |
Wireshark
|
| Version |
unspecified
|
| Hardware |
All
|
| OS |
All
|
| Status |
UNCONFIRMED
|
| Severity |
Enhancement
|
| Priority |
Low
|
| Component |
Dissection engine (libwireshark)
|
| Assignee |
[email protected]
|
| Reporter |
[email protected]
|
Build Information:
N/A
--
The wireshark dissector for the NBD protocol is outdated.
Originally, it was written based on a description on my blog at
<https://grep.be/blog/en/computer/nbd/ethereal_wanted/>, which was accurate and
up-to-date for the time when it was written, but has since been outdated.
The current wireshark dissector understands the NBD_CMD_READ and NBD_CMD_WRITE
packets and possibly also the NBD_CMD_DISC command, but nothing else. Since the
dissector was written, the NBD protocol has evolved to include:
- A new negotiation scheme, which allows the server and the client to negotiate
various options where previously this was not possible;
- A number of new protocol messages (NBD_CMD_FLUSH, _TRIM, _DISC, and
_WRITE_ZEROES)
- A STARTTLS mode (enabling NBD over TLS once negotiated in the new negotiation
scheme)
- Additionally, a default port number (10809) has been assigned by IANA.
An up-to-date protocol description is available at
<https://github.com/NetworkBlockDevice/nbd/blob/master/doc/proto.md>
It would be good if the protocol dissector could be updated.
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