buglwIP - A Lightweight TCP/IP stack - Bugs: bug #56695, Multicast socket options missing...


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bug #56695: Multicast socket options missing for IPv6

Submitted by:  Daniel Pauli <dapaulid>
Submitted on:  Tue 30 Jul 2019 11:37:45 AM UTC  
Votes:  50  
Category:  IPv6 Severity:  3 - Normal
Item Group:  Feature Request Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open Planned Release:  None
lwIP version:  git head

Wed 13 Nov 2019 07:19:47 PM UTC, comment #4: 

+1 for requesting these options be exposed in the sockets API in addition to core. We've got threaded apps that are using the sockets API and my understanding is that there is not a thread-safe workaround to use the core API in this case.

Sam Kearney <skearney>
Thu 01 Aug 2019 06:45:17 PM UTC, comment #3: 

Right. Someone needs to clean up those patches into smaller ones that are more easily reviewable... I'd do it if I found the time, but I failed to do that in the last months... :-(

Simon Goldschmidt <goldsimon>
Project Administrator
Tue 30 Jul 2019 01:55:14 PM UTC, comment #2: 

You're right, after some more searching I found this patch: https://savannah.nongnu.org/patch/?func=detailitem&item_id=9257

From my understanding, core support is implemented, but the options are not yet available in the socket API.

Daniel Pauli <dapaulid>
Tue 30 Jul 2019 01:21:17 PM UTC, comment #1: 

Isn't this a duplicate? I think we already have a bug, task or patch for this.

Simon Goldschmidt <goldsimon>
Project Administrator
Tue 30 Jul 2019 11:37:45 AM UTC, original submission:  

The following socket options related to multicast for IPv6 seem to be missing:


(see http://man7.org/linux/man-pages/man7/ipv6.7.html)

These options are used by the open62541 library for implementing OPC UA PubSub (see https://open62541.org/).

Daniel Pauli <dapaulid>


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