buglwIP - A Lightweight TCP/IP stack - Bugs: bug #62032, Cannot have bind to INADDR_ANY on...


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bug #62032: Cannot have bind to INADDR_ANY on two different sockets bound to a specific netif

Submitter:  Patrik Lantto <patriklantto>
Submitted:  Fri 11 Feb 2022 03:25:48 PM UTC
Category:  None Severity:  3 - Normal
Item Group:  Faulty Behaviour Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open Planned Release:  None
lwIP version:  2.1.3

Fri 11 Feb 2022 03:25:48 PM UTC, original submission:  

If two sockets are bound to different netifs (e.g. using SO_BINDTODEVICE), bind will return an error (EADDRINUSE) if INADDR_ANY and the same port is used. This should only be the case if any of the sockets are not bound to a specific netif (or if they are bound to the same netif).

The attached patch will consider netif_idx in the loop validating the address in tcp_bind, tcp_listen, tcp_connect and udp_bind.

Patrik Lantto <patriklantto>


(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attached Files
file #52844:  SO_BINDTODEVICE.patch added by patriklantto (3KiB - application/octet-stream)


Depends on the following items: None found

Items that depend on this one: None found


Carbon-Copy List
  • -email is unavailable- added by patriklantto (Submitted the item)

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    Follows 1 latest change.

    Date Changed by Updated Field Previous Value => Replaced by
    2022-02-11 patriklantto Attached File- Added SO_BINDTODEVICE.patch, #52844

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