From: Wladimir <laanwj@gmail•com>
To: Mike Hearn <mike@plan99•net>
Cc: Bitcoin Dev <bitcoin-development@lists•sourceforge.net>
Subject: Re: [Bitcoin-development] NODE_EXT_SERVICES and advertising related services
Date: Fri, 8 Aug 2014 12:26:25 +0200 [thread overview]
Message-ID: <CA+s+GJDjSR3272LsSax-2V--x4_taoqrTMiDoXSEvuiS5-MBKw@mail.gmail.com> (raw)
In-Reply-To: <CA+s+GJBUgi7XF4nyVEXqpZi4XYO86vTXMs40gzfu9tCdmp59tw@mail.gmail.com>
On Fri, Aug 8, 2014 at 12:15 PM, Wladimir <laanwj@gmail•com> wrote:
> On Fri, Aug 8, 2014 at 12:01 PM, Mike Hearn <mike@plan99•net> wrote:
>>> He wants to use it to advertise services that are not part of the P2P
>>> protocol itself, but run on a different port. Reserving services bits
>>> for those is not acceptable.
>>
>>
>> Why not? Does the port matter much?
>
> Yes. The services bits are for advertising services on the P2P
> network. That's not open for discussion.
It also wouldn't work. A bit is not enough to find an external service
except in the naive case where the advertised service would have a
fixed port. Not even bitcoind has a fixed port. So there needs to be a
mechanism to find how to connect to the 'external service'. This is
provided by the proposed extension.
It would in principle be possible to advertise an extra service bit
*in addition to* this one, to make it easier to find through the addr
mechanism. But it would be confusing and IMO an abuse of P2P service
bits.
Wladimir
next prev parent reply other threads:[~2014-08-08 10:26 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-08 3:38 Jeff Garzik
2014-08-08 9:45 ` Mike Hearn
2014-08-08 9:56 ` Wladimir
2014-08-08 10:01 ` Mike Hearn
2014-08-08 10:15 ` Wladimir
2014-08-08 10:26 ` Wladimir [this message]
2014-08-08 10:41 ` Christian Decker
2014-08-08 11:22 ` Jeff Garzik
2014-08-08 11:33 ` Jeff Garzik
2014-08-08 11:38 ` Mike Hearn
2014-08-08 11:59 ` Wladimir
2014-08-08 12:06 ` Jeff Garzik
2014-08-08 12:11 ` Jeff Garzik
2014-08-08 12:15 ` Wladimir
2014-08-08 12:11 ` Mike Hearn
2014-08-08 12:15 ` Jeff Garzik
2014-08-08 12:16 ` Wladimir
2014-08-08 12:34 ` Wladimir
2014-08-08 13:55 ` Mike Hearn
2014-08-08 12:04 ` Jeff Garzik
2014-08-08 12:13 ` Mike Hearn
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