Re: [openssl-users] Receive throttling on SSL sockets

2018-05-22 Thread Michael Wojcik
> From: openssl-users [mailto:openssl-users-boun...@openssl.org] On Behalf Of > Alex H > Sent: Saturday, May 19, 2018 15:53 > To: openssl-users@openssl.org > Subject: Re: [openssl-users] Receive throttling on SSL sockets > > Flow control really, really, *really* seems like

Re: [openssl-users] Receive throttling on SSL sockets

2018-05-19 Thread Jordan Brown
I should make it clear that I don't have a stake here.  Lack of flow control hasn't caused me problems personally, and I'm not responsible for implementing and maintaining a TLS infrastructure.  This is purely an intellectual exercise for me. There were comments suggesting that, because TLS is an

Re: [openssl-users] Receive throttling on SSL sockets

2018-05-19 Thread Alex H
@openssl.org; Michael Wojcik; Alex H > > Subject: Re: [openssl-users] Receive throttling on SSL sockets > > > TLS could (but as far as I can tell does not) have such a mechanism. It > could have a window, like TCP, where the receiver > > would say "you can send me 64K

Re: [openssl-users] Receive throttling on SSL sockets

2018-05-19 Thread Michael Wojcik
> From: Jordan Brown [mailto:open...@jordan.maileater.net] > Sent: Saturday, May 19, 2018 14:08 > To: openssl-users@openssl.org; Michael Wojcik; Alex H > Subject: Re: [openssl-users] Receive throttling on SSL sockets > TLS could (but as far as I can tell does not) have such a

Re: [openssl-users] Receive throttling on SSL sockets

2018-05-19 Thread Alex H
Yeah TCP is really the same as TLS in terms of being "bidirectional". Even if you stop polling for readable and never call recv, you will still receive ACKS for whatever you write. A receive window for TLS implemented completely ontop of TCP would solve this issue and allow applications to truly t

Re: [openssl-users] Receive throttling on SSL sockets

2018-05-19 Thread Jordan Brown
On 5/19/2018 6:51 AM, Michael Wojcik wrote: > Right. And TCP is an ordered byte-stream protocol. That means to > receive a control message from the peer, the local stack *must* have > received everything transmitted prior to it. (Modulo SACK, but SACK'd > data preceeded by a gap is invisible to the

Re: [openssl-users] Receive throttling on SSL sockets

2018-05-19 Thread Michael Wojcik
> From: openssl-users [mailto:openssl-users-boun...@openssl.org] On Behalf Of > Salz, Rich via openssl-users > Sent: Saturday, May 19, 2018 08:48 > To: Alex H; openssl-users@openssl.org > Subject: Re: [openssl-users] Receive throttling on SSL sockets > There are TLS control me

Re: [openssl-users] Receive throttling on SSL sockets

2018-05-19 Thread Salz, Rich via openssl-users
Subject: Re: [openssl-users] Receive throttling on SSL sockets Okay that's a good theoretical answer but practically not very useful. I know for instance Node.js to implement their Streams interface with both TCP and SSL sockets. They both have pause / resume functions for receive-throttling

Re: [openssl-users] Receive throttling on SSL sockets

2018-05-19 Thread Alex H
rottling for long? > > Den lör 19 maj 2018 04:57Salz, Rich via openssl-users < > openssl-users@openssl.org> skrev: > >> TLS is a bidirectional protocol. You can’t throttle only one side. >> >> >> >> *From: *Alex H >> *Reply-To: *openssl-users &g

Re: [openssl-users] Receive throttling on SSL sockets

2018-05-19 Thread Alex H
ottle only one side. > > > > *From: *Alex H > *Reply-To: *openssl-users > *Date: *Friday, May 18, 2018 at 7:21 PM > *To: *openssl-users > *Subject: *[openssl-users] Receive throttling on SSL sockets > > > > How do you properly implement receive throttling on SSL soc

Re: [openssl-users] Receive throttling on SSL sockets

2018-05-18 Thread Salz, Rich via openssl-users
TLS is a bidirectional protocol. You can’t throttle only one side. From: Alex H Reply-To: openssl-users Date: Friday, May 18, 2018 at 7:21 PM To: openssl-users Subject: [openssl-users] Receive throttling on SSL sockets How do you properly implement receive throttling on SSL sockets without

[openssl-users] Receive throttling on SSL sockets

2018-05-18 Thread Alex H
How do you properly implement receive throttling on SSL sockets without hindering writing? As opposed to raw TCP sockets, an SSL socket cannot be receive-throttled simply by stop polling for readable events on the underlying raw TCP socket. SSL_write still could require reading of data so simply s