| Time |
Nick |
Message |
| 00:05 |
|
garywhite joined #minetest-hub |
| 00:15 |
BillyS |
Ugh |
| 00:15 |
BillyS |
I'm trying to understand MT packet code |
| 00:15 |
BillyS |
It is ... wierd, to say the least |
| 00:18 |
BillyS |
Can anyone here explain it, or give me any pointers? |
| 00:21 |
sfan5 |
what exactly are you having trouble with |
| 00:32 |
BillyS |
sfan5: I wrote a python script to connect to a minetest server so that I could see what it's doing, and I get messages like 'OEt\x03\x00\x01\x00\x03\xff\xde\x00\x02'. What do those characters mean? |
| 00:32 |
BillyS |
I'm pretty sure the command is the last one |
| 00:33 |
BillyS |
Which would mean it's the TOCLIENT_HELLO |
| 00:33 |
BillyS |
I know the beginning \x03 means that it's a reliable packet |
| 00:33 |
BillyS |
And I think the \x00 after it means that it's a control packet |
| 00:34 |
sfan5 |
i'm puzzled how you managed to understand the protocol despite not knowing what "those characters" mean |
| 00:34 |
BillyS |
I read https://dev.minetest.net/Network_Protocol |
| 00:34 |
BillyS |
And I found an old python script that connected to a server with an old protocal |
| 00:34 |
BillyS |
Which I studied quite a bit |
| 00:35 |
BillyS |
But I'm not sure what the '\x01\x00\x03\xff\xde\x00' in the middle means |
| 00:35 |
BillyS |
I think \xde is the message number, or something like that, because it usually increases by 1 every message |
| 00:36 |
BillyS |
Is the \xff just a separator or something? |
| 00:36 |
sfan5 |
interpretation doesn't work here, you need to read and understand the documentation |
| 00:38 |
sfan5 |
https://github.com/minetest/minetest/blob/master/src/network/connection.h#L136 |
| 00:38 |
sfan5 |
^ start there |
| 00:38 |
BillyS |
Okay, thx |
| 00:39 |
BillyS |
Ooh, so the \x01 is the peer |
| 00:39 |
BillyS |
afk |
| 00:40 |
sfan5 |
you skipped a few steps again |
| 00:40 |
sfan5 |
the peer ID is two bytes, where's the second one? |
| 00:56 |
BillyS |
Oh |
| 00:56 |
BillyS |
Hmm .... lemme look at this more closely |
| 01:03 |
BillyS |
I am confused ... what's the relation between characters and bytes? |
| 01:03 |
BillyS |
I think this is utf-8 ... so 1 to 1 in that case |
| 01:06 |
GreenDimond |
byte is an amount of data |
| 01:07 |
GreenDimond |
standard latin characters are generally a single byte |
| 01:07 |
BillyS |
kk |
| 01:07 |
BillyS |
I know that byte is an amount of data, but I was pretty sure that the number of bytes per character depends on the encoding of the text |
| 01:08 |
GreenDimond |
It does |
| 01:08 |
BillyS |
kk |
| 01:08 |
BillyS |
Hmmm ... |
| 01:08 |
T4im |
utf-8 can vary between 1 to 4 bytes per character |
| 01:08 |
BillyS |
Oh, lovely |
| 01:09 |
BillyS |
That complicates things for sure |
| 01:09 |
BillyS |
I'll just hope that the devs chose 1-byte characters :P |
| 01:09 |
T4im |
when i say vary i mean vary with the text, not the implementation |
| 01:10 |
BillyS |
I assumed |
| 01:15 |
BillyS |
Ah |
| 01:15 |
BillyS |
That explains this header ... one of the characters must be two bytes |
| 01:16 |
BillyS |
..wait |
| 01:17 |
BillyS |
ooh |
| 01:17 |
BillyS |
In the message 'OEt\x03\x00\x01\x00\x03\xff\xdd\x00\x02' |
| 01:17 |
BillyS |
\x00\x01\x00\x03\xff\xdd\x00 would be the header, I think |
| 01:17 |
BillyS |
Becuase \x03 is the packet type |
| 01:18 |
BillyS |
So \x00 is the protocol type (ACK, SET_PEER_ID, PING, or DISCO) |
| 01:19 |
BillyS |
.... I think I'm missing something |
| 01:21 |
T4im |
exactly what there is supposed to be utf8 again? |
| 01:22 |
BillyS |
I think the message is in UTF-8 |
| 01:23 |
T4im |
you should probably start with the header |
| 01:23 |
BillyS |
That's what I'm trying to do |
| 01:23 |
BillyS |
This is the complete message I got from the server, header included: \x00\x01\x00\x03\xff\xdd\x00 |
| 01:23 |
BillyS |
ACK |
| 01:23 |
BillyS |
That's wrong |
| 01:23 |
T4im |
uhm yes, the 7 bytes header in that comment, theres nothing of utf8 standing anywhere there :o |
| 01:24 |
BillyS |
OEt\x03\x00\x01\x00\x03\xff\xdd\x00\x02 |
| 01:24 |
T4im |
the u8 are unsigned 8 bit, not utf8 :x |
| 01:24 |
BillyS |
That ^ is the complete message |
| 01:24 |
BillyS |
I'm confusing bytes with strings again ... |
| 01:25 |
BillyS |
T4im, sorry, I thought the whole message was sent as a UTF-8 string. My bad. |
| 01:26 |
BillyS |
I still don't get what part of the message is the header though |
| 01:26 |
T4im |
the first 7 bytes |
| 01:27 |
BillyS |
T4im: So, that is "OEt\x03\x00\x01\x00"? |
| 01:28 |
T4im |
4 bytes protocol id, 2 bytes sender peer id and 1 byte channel, see the comment for details |
| 01:28 |
T4im |
maybe; you should probably get a better output there, maybe start up wireshark |
| 01:28 |
BillyS |
kk |
| 01:29 |
T4im |
and then normalize it to 0prefixed byte everywhere instead of printing strings, that's just hard to read |
| 01:29 |
T4im |
hex i mean, 00 00 00 01 etc |
| 01:29 |
BillyS |
Good idea; I don't have much experience with this |
| 01:33 |
T4im |
s/prefixed/padded/ |
| 02:00 |
BillyS |
This is wierd |
| 02:01 |
BillyS |
in wireshark, it shows traffic between ports 60760 and 30000 |
| 02:01 |
BillyS |
But the server is on 30000 |
| 02:01 |
BillyS |
So shouldn't it be between 30000 and 30000? |
| 02:01 |
BillyS |
I need to research some of this stuff ... |
| 02:02 |
BillyS |
Meh, it's bedtime for me |
| 02:05 |
|
garywhite joined #minetest-hub |
| 03:20 |
|
Ruslan1 joined #minetest-hub |
| 04:03 |
sofar |
BillyS: server port is fixed, but client port is always random |
| 11:25 |
|
Gael-de-Sailly joined #minetest-hub |
| 11:26 |
|
tenplus1 joined #minetest-hub |
| 11:26 |
tenplus1 |
hi folks :) |
| 11:55 |
rdococ |
idea: mechanical calculator in Minetest (using no mesecons or digilines, but maybe with some medhanical mod) |
| 11:56 |
tenplus1 |
hi rdococ, interesting but how would it work ?!?! |
| 11:56 |
tenplus1 |
do you have a schematic |
| 11:56 |
rdococ |
no |
| 12:05 |
|
aerozoic joined #minetest-hub |
| 12:05 |
tenplus1 |
hi aerozoic |
| 12:06 |
aerozoic |
wazup tenplus1 ! |
| 12:06 |
tenplus1 |
:P |
| 12:09 |
rdococ |
doubt it's even possible in vanilla minetest_game |
| 12:10 |
tenplus1 |
would need some sort of control block |
| 12:11 |
rubenwardy |
https://twitter.com/MinetestProject/status/1058690759099121666?s=09 |
| 12:13 |
tenplus1 |
thx ruben |
| 12:16 |
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aerozoic_ joined #minetest-hub |
| 12:17 |
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aerozoic__ joined #minetest-hub |
| 12:17 |
sfan5 |
I'd also like to thank rubenwardy for taking the time and effort to represent Minetest publicly at a conf |
| 12:17 |
|
JordachNote8 joined #minetest-hub |
| 12:17 |
rubenwardy |
See minetest channel |
| 12:17 |
rubenwardy |
Got a donation from the conference |
| 12:17 |
tenplus1 |
hi sfan... yeah hope you had fun |
| 12:19 |
rubenwardy |
Thanks sfan5 |
| 12:19 |
rubenwardy |
Also Jordach and Shara |
| 12:19 |
tenplus1 |
yay |
| 12:42 |
|
T4im joined #minetest-hub |
| 12:42 |
tenplus1 |
o/ T4im |
| 12:43 |
T4im |
hi :D |
| 12:56 |
|
JordachNote81 joined #minetest-hub |
| 12:59 |
shivajiva |
for anyone interested https://www.youtube.com/watch?v=dHdU4VRwoxA currently stopped for lunch |
| 12:59 |
shivajiva |
Hi tenplus ;) |
| 13:00 |
tenplus1 |
hi Shiva :) |
| 13:14 |
|
Fixer joined #minetest-hub |
| 13:17 |
tenplus1 |
o/ fixer |
| 13:26 |
Fixer |
\\o |
| 13:27 |
rubenwardy |
So much food |
| 13:28 |
tenplus1 |
what ya got ? |
| 13:30 |
|
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| 13:30 |
tenplus1 |
hi calcul0n |
| 13:30 |
calcul0n |
hello |
| 13:36 |
|
JordachNote8 joined #minetest-hub |
| 13:41 |
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JordachNote81 joined #minetest-hub |
| 13:42 |
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Krock joined #minetest-hub |
| 13:42 |
tenplus1 |
hi Krock |
| 13:42 |
Krock |
hi tenplus1 |
| 13:43 |
tenplus1 |
updated falling pull btw |
| 13:48 |
Fixer |
rubenwardy: rip minetest |
| 13:48 |
tenplus1 |
? |
| 13:48 |
ChimneySwift |
?? |
| 13:48 |
rubenwardy |
??? |
| 13:51 |
Fixer |
you need to focus on mt/mtg, not on food |
| 13:52 |
tenplus1 |
ffoooooooOOOOoooood!! |
| 13:52 |
Fixer |
00f |
| 13:53 |
Fixer |
remember, you are here for minetest, food will be later |
| 13:53 |
tenplus1 |
aw |
| 13:53 |
ChimneySwift |
you're allowed to eat food, you just can't be really focused on it |
| 13:53 |
tenplus1 |
in that case: https://github.com/minetest/minetest/pull/7833 |
| 13:58 |
Krock |
Somewhen next year Debian will be as good as Windows according to the numbers |
| 13:59 |
tenplus1 |
already is in my book |
| 14:04 |
rubenwardy |
Fixer: I'm not focusing on food at all |
| 14:04 |
Fixer |
i'm focused on your food |
| 14:04 |
rubenwardy |
Ohh |
| 14:05 |
rubenwardy |
I thought you meant on the stall |
| 14:05 |
Fixer |
"The PortSmash paper, titled Port Contention for Fun and Profit, continues to recommend fully disabling SMT, not only to blunt the threat of PortSmash, but also those of TLBleed and two similar attacks known as CacheBleed and MemJam." |
| 14:05 |
Fixer |
good to have 4 core without this SMT |
| 14:05 |
Fixer |
right on time |
| 14:05 |
tenplus1 |
? |
| 14:06 |
Fixer |
"Intel CPUs fall to new hyperthreading exploit" |
| 14:07 |
tenplus1 |
oh, maybe that's why newest intel cpu doesnt have HT anymore :D |
| 14:09 |
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calcul0n joined #minetest-hub |
| 14:32 |
|
Jordach joined #minetest-hub |
| 14:32 |
Jordach |
greetings from #live |
| 14:33 |
tenplus1 |
o///// |
| 14:33 |
Jordach |
everyone is doing fine :P |
| 14:33 |
tenplus1 |
good to hear, how's the noms ? |
| 14:41 |
Krock |
o/ Jordach |
| 15:02 |
rubenwardy |
We've ditched Jordach for a talk |
| 15:02 |
rubenwardy |
Soz |
| 15:08 |
xerox123 |
o/ |
| 15:08 |
tenplus1 |
hi xerox |
| 15:10 |
xerox123 |
What's the age range at freenode live? |
| 15:12 |
rubenwardy |
Varied |
| 15:12 |
rubenwardy |
I've seen a 5 year old and a ~70 year old |
| 15:14 |
xerox123 |
Ah |
| 15:14 |
|
CWz joined #minetest-hub |
| 15:14 |
tenplus1 |
hi CWz |
| 15:14 |
xerox123 |
I'll try next year when I'm 18 and don't leave Al my hw to the last weekend™ |
| 15:15 |
CWz |
Does Linux support SLI |
| 15:22 |
tenplus1 |
the last post I could find is dated 2015 CWz and that mentioned SLI being incompatible with OpenGL 3.x cause it doesnt use page flipping |
| 15:23 |
|
Ruslan1 joined #minetest-hub |
| 15:25 |
CWz |
so no support for two or more graphic cards |
| 15:25 |
CWz |
? |
| 15:27 |
tenplus1 |
https://devtalk.nvidia.com/default/topic/617305/?comment=4705640 |
| 15:28 |
rubenwardy |
It would nice to support one graphics card well, first |
| 15:29 |
rubenwardy |
Fuck Nvidia |
| 15:29 |
tenplus1 |
lol, ati are doing much more for the open-source driver than nvidia is for theirs |
| 15:33 |
Jordach |
rubenwardy: no problem, had a stretch |
| 15:33 |
Krock |
is ati still a thing? I though they now sell everything under AMD |
| 15:33 |
Krock |
*under the brand |
| 15:33 |
tenplus1 |
amd are awesome :) |
| 15:56 |
CWz |
nvidia graphic driver seems to work fine on my end |
| 15:56 |
CWz |
but the open source driver isn't as good as AMDs |
| 15:57 |
T4im |
if i remember correctly it's not nvidia's nor amd's open source drivers, but both are done from kernel developers; just that amd helps out with specs and perhaps even manpower |
| 16:00 |
tenplus1 |
yeah, nvidia really need to open up and assist with the open-source driver, it could be soooo much better |
| 16:01 |
T4im |
"In addition to providing the necessary documentation, AMD employees contribute code to support their hardware and features." indeed, they are actively contributing :D |
| 16:01 |
tenplus1 |
that in my opinion is a good company |
| 16:01 |
T4im |
it's just sad that due to the CUDA stuff, you sometimes still depend on nvidia :( |
| 16:02 |
T4im |
amd still needs to catch up there |
| 16:17 |
|
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| 16:52 |
tenplus1 |
could I have some mt-game devs look at this please: https://github.com/minetest/minetest/pull/7833 |
| 16:52 |
tenplus1 |
!title |
| 16:52 |
MinetestBot |
tenplus1: falling entity rewrite by tenplus1 · Pull Request #7833 · minetest/minetest · GitHub |
| 16:58 |
Fixer |
SLI is dead |
| 16:59 |
Fixer |
tenplus1: yet nvidia still works kinda better |
| 16:59 |
tenplus1 |
my net-top has nvidia ion and I do like the binary blob, it's faster |
| 17:09 |
tenplus1 |
laters folks |
| 17:09 |
|
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| 17:42 |
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| 18:17 |
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FrostRanger joined #minetest-hub |
| 18:45 |
Krock |
!tell tenplus1 Please don't take >the< recent comment of "falling entity rewrite" too serious. I very welcome dev time and PRs, ofc |
| 18:45 |
MinetestBot |
Krock: I'll pass that on when tenplus1 is around |
| 18:46 |
Krock |
<3 MinetestBot |
| 18:46 |
MinetestBot |
<3 Krock |
| 18:46 |
Krock |
(because he's not in -dev) |
| 18:47 |
sfan5 |
!tell will be passed on in whatever channel MinetestBot sees him |
| 18:47 |
sfan5 |
MTB is not present in -dev though |
| 18:47 |
Krock |
neither ten nor MTB is there |
| 18:53 |
* VanessaE |
pokes Krock with some minetest-mods PRs... :P |
| 18:54 |
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| 18:55 |
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| 18:56 |
* Krock |
opens bookmarks |
| 19:00 |
Krock |
framedglass code looks good, non-controversial |
| 19:05 |
Krock |
looks like coloring anything other than steel framed obsidian glass wasn't possible? |
| 19:06 |
VanessaE |
yeah |
| 19:06 |
Krock |
weird that the punch coloring doesn't work for the others even though it has the callbacks registered |
| 19:06 |
VanessaE |
I just kept it as it originally was |
| 19:06 |
VanessaE |
empty functions. |
| 19:07 |
VanessaE |
and anyway only obsidian glass was supposed to be colorable |
| 19:07 |
Krock |
yes I see |
| 19:07 |
VanessaE |
wait.. |
| 19:07 |
VanessaE |
what callbacks? |
| 19:08 |
Krock |
"on_punch = framedglass.color_on_punch," but I looked at the wrong line. It's alright. Only steel is colorable |
| 19:11 |
VanessaE |
:) |
| 19:15 |
Krock |
approved. gets somewhen merged.. maybe tomorrow if I don't forget it |
| 19:16 |
VanessaE |
\o/ |
| 19:16 |
VanessaE |
fwiw, about whitespace and code style: I tend to just stick with whatever's already there. |
| 19:16 |
VanessaE |
thanks for the tweaks. |
| 19:17 |
Krock |
would've taken longer to write a comment for all those tiny issues |
| 19:18 |
Krock |
sticking to old style is consistent in the project, adjusting it is (optimally) consistent with the minetest-mods style |
| 19:19 |
Krock |
although I would be happier if more of the mods could follow the MTG/MTE code style rules. It's very easy to notice copypasta in unmaintained mods right now |
| 19:19 |
VanessaE |
yepa |
| 19:20 |
* luk3yx |
prefers spaces over tabs, they're more consistent for weird whitespacing things. |
| 19:21 |
* Krock |
slaps luk3yx and throws them out of the door |
| 19:21 |
* Krock |
slams the door |
| 19:22 |
Krock |
luk3yx: they're fine as long it's after the first printable character of the line |
| 19:23 |
Krock |
i.e. to line up tables or repetitive function arguments |
| 19:23 |
Krock |
that's where tabs fail horribly due to their customization |
| 19:24 |
VanessaE |
regarding the technic one, technic depends on pipeworks, which depends on basic_materials, if that's of any importance. |
| 19:25 |
Krock |
guess who added that dependency |
| 19:25 |
VanessaE |
spaces for indenting? heretic! |
| 19:26 |
VanessaE |
Krock: of course I added it :P |
| 19:26 |
VanessaE |
but that's been a plan for a years. just never got around to it. |
| 19:27 |
Krock |
https://imgs.xkcd.com/comics/citogenesis.png |
| 19:27 |
Krock |
same principle as here ^ |
| 19:27 |
VanessaE |
granted. |
| 19:30 |
VanessaE |
doesn't change the end result: I simply implemented the basics of a plan RBA and I had percolating before he passed away. |
| 19:31 |
Krock |
is it some kind of glue to provide item alternatives if another mod is absent? |
| 19:37 |
VanessaE |
it's purpose is to provide those simple items that everyone else seems to keep re-inventing from time to time |
| 19:37 |
VanessaE |
though it has aliases so that mods that expected say home decor (plastic) or gloopblocks (cement) will still work (assuming depends.txt is appropriately tweaked) |
| 19:37 |
VanessaE |
(and assuming I didn't forget any aliases) |
| 19:37 |
VanessaE |
i.e. to reduce repetitiveness and crafting conflicts. |
| 19:37 |
VanessaE |
if handled properly, basic_materials shouldn't need to grow too much past where it is now, though I can think of a couple of other items that it should probably have |
| 19:37 |
VanessaE |
a/ can/'m sure I could/ |
| 19:37 |
VanessaE |
you get the idea? |
| 19:38 |
rubenwardy |
it's gross, technically |
| 19:38 |
VanessaE |
? |
| 19:38 |
rubenwardy |
what's the point of adding items which don't fit in logically? |
| 19:38 |
VanessaE |
what doesn't fit into what? |
| 19:38 |
rubenwardy |
like, if I have to install the mod just for one part, there's a load of random stuff that isn't used |
| 19:39 |
rubenwardy |
it's better to divide things into craft trees |
| 19:39 |
VanessaE |
oh here we go again... |
| 19:39 |
rubenwardy |
:D |
| 19:39 |
Krock |
the get-the-entire-boilerplate-mode or trim-to-necessary-stuff discussion? |
| 19:39 |
VanessaE |
can't you just ignore the items that you have no use for? also, technic, as amended in my PR, uses several items in basic_materials |
| 19:39 |
Krock |
s/mode/mod |
| 19:39 |
VanessaE |
plus, |
| 19:40 |
VanessaE |
basic_materials IS split into parts - metals, plastics, electrical/electronic, misc |
| 19:40 |
rubenwardy |
it's a bad user experience |
| 19:41 |
VanessaE |
no, a "bad user experience" is showing the user two or more of the same item and having them make the wrong one for the thing they want. |
| 19:41 |
VanessaE |
(same as in equivalent in a gaming sense) |
| 19:43 |
VanessaE |
if a user is stupid enough to make an item that isn't used anywhere, that's their fault. if they're shown two options that look like they ought to do the same job and they pick the wrong one, that's the mod's fault. |
| 19:43 |
VanessaE |
THAT is the kind of thing basic_materials is meant to address |
| 20:33 |
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| 21:40 |
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| 22:12 |
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| 22:14 |
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