+1 thanks for the contribution Best regards Alin ________________________________ Från: Tomek CEDRO <to...@cedro.info> Skickat: den 13 maj 2025 21:47 Till: dev@nuttx.apache.org <dev@nuttx.apache.org> Ämne: Re: mDNS - apps utility or kernel? And licensing
Sounds good to share solutions between NuttX and Vela, thank you folks! :-) +1 for adding mdns to nuttx-apps :-) +1 for example apllication :-) +1 for documentation how this works and how to use :-) -- CeDeROM, SQ7MHZ, https: //urldefense. com/v3/__http: //www. tomek. cedro. info__;!!O7_YSHcmd9jp3hj_4dEAcyQ!2LSc0LXTOmiLZj4iSbwiMkIrrutsFGS3sNy8rjNJPedRdKluDTI6xSvA32f-Cn29wCApNmv41_FZ7r_VNg$ Sounds good to share solutions between NuttX and Vela, thank you folks! :-) +1 for adding mdns to nuttx-apps :-) +1 for example apllication :-) +1 for documentation how this works and how to use :-) -- CeDeROM, SQ7MHZ, https://urldefense.com/v3/__http://www.tomek.cedro.info__;!!O7_YSHcmd9jp3hj_4dEAcyQ!2LSc0LXTOmiLZj4iSbwiMkIrrutsFGS3sNy8rjNJPedRdKluDTI6xSvA32f-Cn29wCApNmv41_FZ7r_VNg$ On Tue, May 13, 2025, 20:55 Tim Hardisty <timhardist...@gmail.com> wrote: > I will get it working in the way I need it (basic mDNS response to > resolve a .local address for an appliance) and then submit it. It might > benefit from a NuttX-specific example app to make it easier to > understand for dimwits like me, so would include that too. With > documentation :-) > > On 13/05/2025 19:14, Alan C. Assis wrote: > > Hi Tim, > > > > I think everything that speeds up NuttX users development and makes user > > experience easy is welcome! > > > > Please also include some basic Documentation/ explaining how to test it > on > > NuttX. > > > > BR, > > > > Alan > > > > On Tue, May 13, 2025 at 3:07 PM Tim Hardisty <timhardist...@gmail.com> > > wrote: > > > >> I have it working as a downloaded 3rd party utility, currently into my > >> own personal Apps space rather than nuttx-apps. Would there be any > >> benefit to others if I move it to apps/netutils and submit it as a PR? > >> It works "out of the box" as a NuttX app or library, depending on > >> Kconfig settings as per Xiang Xiao's links to open-vela. > >> > >> On 13/05/2025 15:20, Tim Hardisty wrote: > >>> FANTASTIC - thanks Xiang Xiao. I love learning how to do things and > >>> even better when I don't really have to do anything :-) > >>> > >>> On 13/05/2025 14:27, Xiang Xiao wrote: > >>>> On Tue, May 13, 2025 at 8:07 PM Tim Hardisty <timhardist...@gmail.com > > > >>>> wrote: > >>>> > >>>>> See Greg's response below which didn't make it to the list. > >>>>> > >>>>> See comments inline below. > >>>>> > >>>>> On 13/05/2025 03:13, Gregory Nutt wrote: > >>>>>> On 5/12/2025 11:54 AM, Tim Hardisty wrote: > >>>>>>> I am adding mDNS/DNS-SD query responder software to my project to > >>>>>>> allow my NuttX "appliance" to be identified as a ".local" device on > >>>>>>> the network. > >>>>>>> > >>>>>>> It is using public domain software here: > >>>>>>> https://urldefense.com/v3/__https://github.com/mjansson/mdns__;!!O7_YSHcmd9jp3hj_4dEAcyQ!2LSc0LXTOmiLZj4iSbwiMkIrrutsFGS3sNy8rjNJPedRdKluDTI6xSvA32f-Cn29wCApNmv41_ESWRB8bg$ > >>>>>>> > >>>>>>> Firstly: would this be best done as part of the kernel under the > >>>>>>> CONFIG_NET umbrella; or as an app as a NETUTILS feature? > >>>> We have done the porting before, you can use it from here directly: > >>>> https://urldefense.com/v3/__https://github.com/open-vela/external/tree/dev/mdns__;!!O7_YSHcmd9jp3hj_4dEAcyQ!2LSc0LXTOmiLZj4iSbwiMkIrrutsFGS3sNy8rjNJPedRdKluDTI6xSvA32f-Cn29wCApNmv41_GZQkFTYg$ > >>>> https://urldefense.com/v3/__https://github.com/open-vela/external_mdns__;!!O7_YSHcmd9jp3hj_4dEAcyQ!2LSc0LXTOmiLZj4iSbwiMkIrrutsFGS3sNy8rjNJPedRdKluDTI6xSvA32f-Cn29wCApNmv41_HJQntAWA$ > >>>> > >>>>> If it uses *only* standard applications interfaces, to the OS then it > >>>>>> is an application and should not be inside the OS. This is for > >>>>>> modularity and security reasons. If it uses both standardized > >>>>>> application interfaces and internal OS interfaces, then it belongs > in > >>>>>> libs/. If it uses *only* OS interfaces then it might be part of > >>>>>> the OS. > >>>>>> > >>>>>> NOTE that OS and applications use a different set of interfaces with > >>>>>> difference calling rules from application space. It is not portable > >>>>>> between the either of the two contexts without some additional > >>>>>> complexity and a fairly deep understanding of the OS interfaces. > >>>>>> > >>>>> Noted: but, all things being equal, would mDNS/DNS-SD be "better" in > >>>>> the > >>>>> OS or as an App (daemon)? > >>>>> > >>>> it should belong to the apps folder which is a normal library calling > >>>> POSIX > >>>> API. > >>>> > >>>> > >>>>>>> Secondly: my read of the PD license is that there would be no > problem > >>>>>>> plundering the necessary code and submitting it as a NuttX feature. > >>>>>>> Does anyone disagree - for example is an Apache license of what was > >>>>>>> public domain software not a good/nice/allowed thing? I assume it > >>>>>>> would be good to include a link to the original work somewhere or > >>>>>>> other? > >>>>>> The ASF defines some very strict rules for the inclusion of 3rd part > >>>>>> code. Make sure that any thing you want conforms to: > >>>>>> > >>>>>> * > >>>>>> https://urldefense.com/v3/__https://www.apache.org/legal/resolved.html__;!!O7_YSHcmd9jp3hj_4dEAcyQ!2LSc0LXTOmiLZj4iSbwiMkIrrutsFGS3sNy8rjNJPedRdKluDTI6xSvA32f-Cn29wCApNmv41_E9bbrzOw$ > >>>>>> (official version) > >>>>>> * > >>>>>> https://urldefense.com/v3/__https://www.apache.org/legal/3party.html__;!!O7_YSHcmd9jp3hj_4dEAcyQ!2LSc0LXTOmiLZj4iSbwiMkIrrutsFGS3sNy8rjNJPedRdKluDTI6xSvA32f-Cn29wCApNmv41_E7PtFVHQ$ > >>>>>> (previous version) > >>>>>> > >>>>> Thanks for the links. The original code is tagged as being under the > >>>>> "unlicense.org" rules and has the necessary disclaimers I think > Apache > >>>>> will want. > >>>>> > >>>>> I may end up just using the PD code as inspiration and write my own > >>>>> version, in which the "problem" goes away. Otherwise I will submit > as a > >>>>> draft PR and will see what others have to say - the question can be > >>>>> submitted if needed to the Apache folk. But I'm a way away from being > >>>>> ready for that anyway! > >>>>> > >>>> It's fine not adding the source code to repo directly, but > >>>> downloading the > >>>> code on demand, like many other 3rd party project: > >>>> https://urldefense.com/v3/__https://github.com/apache/nuttx-apps/tree/master/benchmarks/coremark__;!!O7_YSHcmd9jp3hj_4dEAcyQ!2LSc0LXTOmiLZj4iSbwiMkIrrutsFGS3sNy8rjNJPedRdKluDTI6xSvA32f-Cn29wCApNmv41_FL3fFYKQ$ > >>>> >
