On 26/11/2018 21:46, Nick Mathewson wrote: > On Wed, Nov 21, 2018 at 5:10 PM Michael Rogers <mich...@briarproject.org> > wrote: >> >> On 20/11/2018 19:28, Nick Mathewson wrote: >>> Hi! I don't know if this will be useful or not, but I'm wondering if >>> you've seen this ticket: >>> https://trac.torproject.org/projects/tor/ticket/28335 >>> >>> The goal of this branch is to create a "dormant mode" where Tor does >>> not run any but the most delay- and rescheduling-tolerant of its >>> periodic events. Tor enters this mode if a controller tells it to, or >>> if (as a client) it passes long enough without user activity. When in >>> dormant mode, it doesn't disconnect from the network, and it will wake >>> up again if the controller tells it to, or it receives a new client >>> connection. >>> >>> Would this be at all helpful for any of this? >> >> This looks really useful for mobile clients, thank you! > > Glad to hear it -- it's now merged into Tor's master branch.
Fantastic. >> The comments on the pull request >> (https://github.com/torproject/tor/pull/502) suggest that Tor won't >> enter dormant mode if it's running a hidden service. Are there any plans >> to support that in future? > > I want to support this for hidden services. Here's the ticket to > track that: https://trac.torproject.org/projects/tor/ticket/28424 > > This is going to be harder than the other cases, though, so we decided > to defer it for now and see if we have time later. Makes sense. I added some simulation results to the ticket that support dgoulet's assessment that the descriptor may become unreachable within a few hours if not republished, due to HSDir churn. However, even one hour in dormant mode would be a huge improvement over what we can do now. What are the other blockers for running a hidden service in dormant mode? Would it be possible/easier to keep an ordinary client circuit alive in dormant mode? That would allow us to keep a connection to a mailbox* while dormant. Cheers, Michael * Briar term for a device connected to power and internet that runs a hidden service on behalf of the owner's main device.
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