Currently (from a recent PR) we aren't pinging oxend if not active, but
that behaviour ended up being quite wrong because lokinet needs to ping
even when decommissioned or deregistered (when decommissioned we need
the ping to get commissioned again, and if not registered we need the
ping to get past the "lokinet isn't pinging" nag screen to prepare a
registration).
This considerably revises the pinging behaviour:
- We ping oxend *unless* there is a specific error with our connections
(i.e. we *should* be establishing peer connections but don't have any)
- If we do have such an error, we send a new oxend "error" ping to
report the error to oxend and get oxend to hold off on sending uptime
proofs.
Along the way this also changes how we handle the current node state:
instead of just tracking deregistered/decommissioned, we now track three
states:
- LooksRegistered -- which means the SN is known to the network (but not
necessarily active or fully staked)
- LooksFunded -- which means it is known *and* is fully funded, but not
necessarily active
- LooksDecommissioned -- which means it is known, funded, and not
currently active (which implies decommissioned).
The funded (or more precisely, unfunded) state is now tracked in
rc_lookup_handler in a "greenlist" -- i.e. new SNs that are so new (i.e.
"green") that they aren't even fully staked or active yet.
This aligns service node updating logic a bit closer to what happens in
storage server, and should make it a bit more resilient, hopefully
tracking down the (off-Github) reported issue where lokinet sometimes
doesn't see itself as active.
- Initiate a service node list update in the 30s timer lokinet ping
timer (in case we miss a block notify for some reason); although this
is expensive, the next point mitigates it:
- Retrieve the block hash with the SN state update, and feed it back
into the next get_service_nodes call (as "poll_block_hash") so that
oxend just sends back a mostly-empty response when the block hasn't
changed, allowing both oxend and lokinet to skip nearly all of the
work of a service node list update when the block hasn't changed since
the last poll. (This was already partially implemenated--we were
already looking for "unchanged"--but without a block hash to get from
and pass back to oxend we'd never actually get an "unchanged" result).
- Tighten up the service node list handling by moving the "unchanged"
handling into the get_service_nodes response handler: this way the
HandleNewServiceNodeList function is only handling the list but not
the logic as to whether there actually is a new list or not.
If running as a service node, we ping core on a regular interval to
inform it we're running and in a good state. If we're an active
(not decommissioned or deregistered) service node and have too few
peers and thus we're not actually connected to lokinet, we should skip
that ping so core doesn't think we're ok.
- Accept empty string or `null` for token to mean "no token."
- Accept `null` for range to mean "default range."
- Don't use a default range (::0/0) in lokinet-vpn because this will
fail if IPv6 ranges aren't supported on the platform (e.g. on
Windows), and isn't necessary: if we omit it then the rpc code already
uses ::0/0 or 0.0.0.0/0 by default, as needed.
* wintun vpn platform for windows
* bundle config snippets into nsis installer for exit node, keyfile persisting, reduced hops mode.
* use wintun for vpn platform
* isolate all windows platform specific code into their own compilation units and libraries
* split up internal libraries into more specific components
* rename liblokinet.a target to liblokinet-amalgum.a to elimiate ambiguity with liblokinet.so
* DNS platform for win32
* rename llarp/ev/ev_libuv.{c,h}pp to llarp/ev/libuv.{c,h}pp as the old name was idiotic
* split up net platform into win32 and posix specific compilation units
* rename lokinet_init.c to easter_eggs.cpp as that is what they are for and it does not need to be a c compilation target
* add cmake option STRIP_SYMBOLS for seperating out debug symbols for windows builds
* intercept dns traffic on all interfaces on windows using windivert and feed it into lokinet
we want to be able to have multiple locally bound dns sockets in lokinet so
i restructured most of the dns subsystem in order to make this easier.
specifically, we have a new structure to dns subsystem:
* dns::QueryJob_Base
base type for holding a dns query and response with virtual methods
in charge of sending a reply to whoever requested.
* dns::PacketSource_Base
base type for reading and writing dns messages to and from wherever they came from
* dns::Resolver_Base
base type for filtering and handling of dns messages asynchronously.
* dns::Server
contextualized per endpoint dns object, responsible for all dns related isms.
this change hides all impelementation details of all of the dns components.
adds some more helper functions for parsing dns and dealing with OwnedBuffer.
overall dns becomes less of a pain with this new structure. probably.
Replaces custom logging system with spdlog-based oxen logging. This
commit mainly replaces the backend logging with the spdlog-based system,
but doesn't (yet) convert all the existing LogWarn, etc. to use the new
format-based logging.
New logging statements will look like:
llarp::log::warning(cat, "blah: {}", val);
where `cat` should be set up in each .cpp or cluster of .cpp files, as
described in the oxen-logging README.
As part of spdlog we get fmt, which gives us nice format strings, where
are applied generously in this commit.
Making types printable now requires two steps:
- add a ToString() method
- add this specialization:
template <>
constexpr inline bool llarp::IsToStringFormattable<llarp::Whatever> = true;
This will then allow the type to be printed as a "{}" value in a
fmt::format string. This is applied to all our printable types here,
and all of the `operator<<` are removed.
This commit also:
- replaces various uses of `operator<<` to ToString()
- replaces various uses of std::stringstream with either fmt::format or
plain std::string
- Rename some to_string and toString() methods to ToString() for
consistency (and to work with fmt)
- Replace `stringify(...)` and `make_exception` usage with fmt::format
(and remove stringify/make_exception from util/str.hpp).
It's there for polling, which we aren't doing anymore; we just got the
hash from oxend's push notification, so if it pass it in then we will
always get an "unchanged" result because we're telling oxend that we
already have the data for that hash updated.
This just drops the hash completely because we don't need it anymore.
* immediately poke routes when we are told to use an exit so that packets get pushed which makes an exit path happen
* fix up cmake oddity in nsis section
* add srv records in RCs if we have any
* add mechanism to add SRV records for plainquic exposed ports
* resign and republish rc or introset on srv record changes
* add lokinet_add_bootstrap_rc function for adding an rc from memory
* prevent stack overflow on error closing connection in quic
* add in memory nodedb
* refactor how convotags are set as active
* add initial stubs for endpoint statistics
* refactor time stuff to be a bit cleaner
* update lnproxy script with more arguments
