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  • David Goulet's avatar
    hs-v3: Require reasonably live consensus · 04b02639
    David Goulet authored
    Some days before this commit, the network experienced a DDoS on the directory
    authorities that prevented them to generate a consensus for more than 5 hours
    straight.
    
    That in turn entirely disabled onion service v3, client and service side, due
    to the subsystem requiring a live consensus to function properly.
    
    We know require a reasonably live consensus which means that the HSv3
    subsystem will to its job for using the best consensus tor can find. If the
    entire network is using an old consensus, than this should be alright.
    
    If the service happens to use a live consensus while a client is not, it
    should still work because the client will use the current SRV it sees which
    might be the previous SRV for the service for which it still publish
    descriptors for.
    
    If the service is using an old one and somehow can't get a new one while
    clients are on a new one, then reachability issues might arise. However, this
    is a situation we already have at the moment since the service will simply not
    work if it doesn't have a live consensus while a client has one.
    
    Fixes #40237Signed-off-by: David Goulet's avatarDavid Goulet <dgoulet@torproject.org>
    04b02639
ticket40237 336 Bytes