612 Commits (871c3e3281d15ce876fcd85a02228b4e70453bac)

Author	SHA1	Message	Date
Jeff Becker	1f1db29816	GetIf -> GetRandom	3 years ago
Jeff Becker	df4ea34a56	nodedb refactor ... * bump zmq static dep * lokimq -> oxenmq * llarp_nodedb -> llarp::NodeDB * remove all crufty api parts of NodeDB * make NodeDB rc selection api not suck * make path builder api not suck * propagate all above changes so that unit tests work and it all compiles	3 years ago
Jeff Becker	7ee9d0281c	add llarp.endpoint rpc command with kill option to kill all active convotags given ... a list of or a single remote service address.	4 years ago
Jeff	e66522b9dd	fix path reference leak (#1451)	4 years ago
Jeff	4c7d52ac20	more aggressive path building. (#1423) ... * more aggressive path building. * do more than one in parallel path builds at a time * correct last commit's logic * rename numPaths -> numDesiredPaths to clarify intent * revert string change as it will break a lot * don't prematurly short circuit on snode builds Co-authored-by: Thomas Winget <tewinget@gmail.com>	4 years ago
Jeff	22acf0a537	Lns exits (#1407) ... * lns exits * try appeasing the clang * clean up lambda	4 years ago
Jeff	50aea744f6	order packets when writing to network interface (#1372) ... * order packet writes on userside * make it compile * fix pybind	4 years ago
Jason Rhinelander	af6caf776a	Config file improvements (#1397) ... * Config file API/comment improvements API improvements: ================= Make the config API use position-independent tag parameters (Required, Default{123}, MultiValue) rather than a sequence of bools with overloads. For example, instead of: conf.defineOption<int>("a", "b", false, true, 123, [] { ... }); you now write: conf.defineOption<int>("a", "b", MultiValue, Default{123}, [] { ... }); The tags are: - Required - MultiValue - Default{value} plus new abilities (see below): - Hidden - RelayOnly - ClientOnly - Comment{"line1", "line2", "line3"} Made option definition more powerful: ===================================== - `Hidden` allows you to define an option that won't show up in the generated config file if it isn't set. - `RelayOnly`/`ClientOnly` sets up an option that is only accepted and only shows up for relay or client configs. (If neither is specified the option shows up in both modes). - `Comment{...}` lets the option comments be specified as part of the defineOption. Comment improvements ==================== - Rewrote comments for various options to expand on details. - Inlined all the comments with the option definitions. - Several options that were missing comments got comments added. - Made various options for deprecated and or internal options hidden by default so that they don't show up in a default config file. - show the section comment (but not option comments) *after* the [section] tag instead of before it as it makes more sense that way (particularly for the [bind] section which has a new long comment to describe how it works). Disable profiling by default ============================ We had this weird state where we use and store profiling by default but never *load* it when starting up. This commit makes us just not use profiling at all unless explicitly enabled. Other misc changes: =================== - change default worker threads to 0 (= num cpus) instead of 1, and fix it to allow 0. - Actually apply worker-threads option - fixed default data-dir value erroneously having quotes around it - reordered ifname/ifaddr/mapaddr (was previously mapaddr/ifaddr/ifname) as mapaddr is a sort of specialization of ifaddr and so makes more sense to come after it (particularly because it now references ifaddr in its help message). - removed peer-stats option (since we always require it for relays and never use it for clients) - removed router profiles filename option (this doesn't need to be configurable) - removed defunct `service-node-seed` option - Change default logging output file to "" (which means stdout), and also made "-" work for stdout. * Router hive compilation fixes * Comments for SNApp SRV settings in ini file * Add extra blank line after section comments * Better deprecated option handling Allow {client,relay}-only options in {relay,client} configs to be specified as implicitly deprecated options: they warn, and don't set anything. Add an explicit `Deprecated` tag and move deprecated option handling into definition.cpp. * Move backwards compat options into section definitions Keep the "addBackwardsCompatibleConfigOptions" only for options in sections that no longer exist. * Fix INI parsing issues & C++17-ify - don't allow inline comments because it seems they aren't allowed in ini formats in general, and is going to cause problems if there is a comment character in a value (e.g. an exit auth string). Additionally it was breaking on a line such as: # some comment; see? because it was treating only `; see?` as the comment and then producing an error message about the rest of the line being invalid. - make section parsing stricter: the `[` and `]` have to be at the beginning at end of the line now (after stripping whitespace). - Move whitespace stripping to the top since everything in here does it. - chop off string_view suffix/prefix rather than maintaining position values - fix potential infinite loop/segfault when given a line such as `]foo[` * Make config parsing failure fatal Load() LogError's and returns false on failure, so we weren't aborting on config file errors. * Formatting: allow `{}` for empty functions/structs Instead of using two lines when empty: { } * Make default dns bind 127.0.0.1 on non-Linux * Don't show empty section; fix tests We can conceivably have sections that only make sense for clients or relays, and so want to completely omit that section if we have no options for the type of config being generated. Also fixes missing empty lines between tests. Co-authored-by: Thomas Winget <tewinget@gmail.com>	4 years ago
Jeff	8943be6c3a	serialize auth codes in rpc (#1369) ... * serialize auth codes in rpc * format * format * config and route fixups * bump lokimq * fix compile * discard unknown members in service keys * format	4 years ago
Jeff	252692a55b	dont poke routes if we have no exit (#1352) ... * * refactor route poking out of llarp::Router and into llarp::RoutePoker * only poke routes when we have an exit enabled as a client * add route_poker header so it compiles	4 years ago
Jeff	c91e4df856	make errors with service keyfile throw (#1358)	4 years ago
Jeff	78b40d6725	wire up lns gotnamemessage handler to kitchen sink	4 years ago
Jeff	21930cf667	LNS (#1342) ... * initial relay side lns * fix typo * add reserved names and refactor test for dns * lns name decryption * all wired up (allegedly) * refact to use service::EncryptedName for LNS responses to include nonce with ciphertext * fully rwemove tag_lookup_job * replace lns cache with DecayingHashTable * check for lns name validity against the following rules: * not localhost.loki, loki.loki, or snode.loki * if it contains no dash then max 32 characters long, not including the .loki tld (and also assuming a leading subdomain has been stripped) * These are from general DNS requirements, and also enforced in registrations: * Must be all [A-Za-z0-9-]. (A-Z will be lower-cased by the RPC call). * cannot start or end with a - * max 63 characters long if it does contain a dash * cannot contain -- in the third and fourth characters unless it starts with xn-- * handle timeout in name lookup job by calling the right handler with std::nullopt	4 years ago
Jeff	681459185f	remove locks (#1336) ... * remove locks * use tryPushBack to attempt to prevent deadlocks	4 years ago
Jeff	3ab7db7723	macos route poking (#1333) ... * fix up macos route poker logic * fix typo * use string_view * add forgotten header * full paths * add debugging * catch exception on adding route * workarround for macos * typofix * typofix * fix for macos * fix command for macos * because we autopoke remove explicit route poking in rpc * probably final fix of macos route poking * split routes instead of deleting them * dynamic route poking * move log statement for introset lookup and dont consider bad sessions as able to send * send convotag reset frame when we have no session * add exit map to rpc * use split_any	4 years ago
Thomas Winget	b1c14af938	SRV Record handling for introsets (#1331) ... * update loki-mq submodule for tuple support * srv record reply implementation still need to encode srv records into intro sets / router contacts as well as decode from them and match against queried service.proto * inverted condition fix in config code * SRV record struct (de-)serialization for intro sets * parsing and using srv records from config (for/in introsets) * adopt str utils from core and use for srv parsing * changes to repeat requests no longer drop repeat requests on the floor, but do not make an *actual* request for them if one is in progress. do not call reply hook for each reply for a request, as each userland request is actually made into several lokinet requests and this would result in duplicate replies. * fetch SRVs from introsets for .loki * make format * dns and srv fixes, srv appears to be working	4 years ago
jeff	e3bfe76f98	add exit auth token awareness to config	4 years ago
jeff	574a986d9a	explicitly set frame reset field to zero by default	4 years ago
jeff	e039aeb6d5	remove codepath for convotag invalidation	4 years ago
jeff	2e7f9d1b87	remove convo tag when we invalidate it	4 years ago
jeff	3fbc46879d	Revert "don't send protocol discard message on fail" ... This reverts commit ee2a42118c88bd7778cd6dc8694564c7d10e60d1.	4 years ago
jeff	78a4d361ab	don't send protocol discard message on fail	4 years ago
jeff	75f9643776	attempt to fix snode traffic ip rewrite bug	4 years ago
Jeff Becker	0f21eeccb0	* rework exit codepath to allow multiple exits ... * rework net code for ip ranges to be cleaner * clean up endpoint auth code * refactor config to validate network configs before setting up endpoints * remove buildone from path/pathbuilder.cpp so we don't spam connection attempts	4 years ago
Jeff Becker	3cdca30a74	more auth shit	4 years ago
Jeff Becker	f4971a88fd	use lokimq workers instead of llarp:🧵:ThreadPool	4 years ago
Jeff Becker	1e8368b636	make it compile	4 years ago
Jeff Becker	61c5808765	exit authentication (initial)	4 years ago
Jeff Becker	800668348a	add regression test for key backup bug	4 years ago
Jeff Becker	ac26037c34	when in 1 hop mode we where hitting a case where we were failing to build paths ... this was because we were trying to diversify the endpoints used which is not appicable in 1 hop mode because first hops are sticky.	4 years ago
Jeff Becker	c6885ec285	remove Endpoint::GetExitRouters()	4 years ago
Jeff Becker	6af498092b	exit traffic via loki addresses	4 years ago
Jason Rhinelander	ebd2142114	Don't use std::optional::value() because f u macos ... This replaces all use of std::optional's `opt.value()` with `*opt` because macOS is great and the ghost of Steve Jobs says that actually supporting std::optional's value() method is not for chumps before macOS 10.14. So don't use it because Apple is great. Pretty much all of our use of it actually is done better with operator* anyway (since operator* doesn't do a check that the optional has a value). Also replaced *most* of the `has_value()` calls with direct bool context, except for one in the config section which looked really confusing at a glance without a has_value().	4 years ago
Jason Rhinelander	26ecf23ad8	Silence various warnings	4 years ago
Stephen Shelton	ed31cdaacf	Cosmetic fixes	4 years ago
Stephen Shelton	5f0cbb4625	Don't forget to load your keys	4 years ago
Stephen Shelton	9ba0f117c7	Revert to previous "if hops > 0" logic in Configure()	4 years ago
Stephen Shelton	960dc37c1f	Refactor TunEndpoint::Configure() (partially)	4 years ago
Stephen Shelton	f2a26adcaa	Move all [endpoint] options to [network]	4 years ago
Stephen Shelton	dd9ab0f1d5	Remove ability to have multiple endpoints/snodes from config	4 years ago
Stephen Shelton	b7451b7632	Rip out tag, prefetch tags/addrs from Endpoint	4 years ago
Stephen Shelton	df01770466	Rename SnappConfig -> EndpointConfig	4 years ago
Stephen Shelton	93b35c92a7	Eradicate service::Config	4 years ago
Jason Rhinelander	1697bf90fe	C++17 ... Compiles with C++17, replaces ghc::filesystem with std::filesystem, nonstd::optional with std::optional, and llarp::string_view with std::string_view.	4 years ago
Jason Rhinelander	3c6aa002b8	Fix errors and warnings compiling on mac	4 years ago
Stephen Shelton	273270916e	The Great Wall of Blame ... This commit reflects changes to clang-format rules. Unfortunately, these rule changes create a massive change to the codebase, which causes an apparent rewrite of git history. Git blame's --ignore-rev flag can be used to ignore this commit when attempting to `git blame` some code.	4 years ago
Jeff	d3091cf9fc	Merge pull request #1167 from tewinget/tooling ... RouterHive initial PR	4 years ago
Stephen Shelton	ea835405c5	Refactor NotifyRouterEvent() to forward args, event code cleanup ... This template-ifies Router::NotifyRouterEvent() up so that it accepts the arguments to instantiate the specified event type, forwarding them to std::make_unique. This would allow (in the future) the function to no-op the call and avoid memory allocation. It also slightly reduces the amount of code required to fire an event. This commit also simplifies some of the RouterEvent code to reduce redundancy.	4 years ago
Stephen Shelton	6664202868	Add FindRouterSentEvent and FindRouterReceivedEvent to RouterHive	4 years ago
Jeff	f3d23d6fb6	strip rr from dns reply for .snode and .loki (#1172) ... fix dns replies so that extra RR for edns are not included.	4 years ago
Thomas Winget	84a1d7dbcc	clang format.......	4 years ago
Thomas Winget	695784b2b6	more hive things ... DHT PubIntroSentEvent some helper functions added to RouterHive (C++ class) as well as RouterHive(Python class) hive.py main() continues to be a testbed for new event types some more internal classes in pybind	4 years ago
Jason Rhinelander	c87fd66386	Fix lookup filter to filter second, not first, lookup	4 years ago
Jeff Becker	877443d95c	more introspection code	4 years ago
Jeff Becker	d4ccf895e3	Merge branch 'fix-up-introset-lookup-fails-2020-03-02' of ssh://github.com/majestrate/loki-network into fix-up-introset-lookup-fails-2020-03-02	4 years ago
Jeff Becker	79746e3719	remote lookup limiting of 500ms per address	4 years ago
Stephen Shelton	9be8050854	Make format	4 years ago
Stephen Shelton	886a981997	Consolidate introset publishing constants	4 years ago
Jeff Becker	a09bb89d15	dont put multiple outbound contexts	4 years ago
Jeff Becker	158a9018f3	rename variable	4 years ago
Jeff Becker	9ff31f6402	spelling is hard	4 years ago
Jeff Becker	8f4362f092	fix up introset lookups	4 years ago
Jason Rhinelander	806d43c34e	Merge pull request #1147 from notlesh/diagnose-pubintro-round2-2020-02-28 ... Diagnose pubintro round2	4 years ago
Jason Rhinelander	b60adc909d	Make IntroSet publish confirmed less verbose ... Essentially just rate limit the confirmation message to one message per second.	4 years ago
Jason Rhinelander	cfee824a79	Don't republish when we have extra paths ... This caused some unwanted behaviour: - on initial startup we often get two publishes in quick succession because we're publishing and building paths at the same time - at the 10m mark we enter a publish loop every 5 seconds because we have paths with lifetimes < 10min that was triggering this condition, and yet those paths will never actually be included in the introset because they are expiring in <10m.	4 years ago
Jason Rhinelander	823c17206f	Add min intro set paths, slightly increase spread speed ... This should ensure that we have enough shortly after startup for initial path builds. The spread speed here gets slightly increased to lifetime/5 (=4min) instead of lifetime/4 (=5min) so that our "normal" number of paths is 5 with occassional momentary drops to 4, but should always keep us >= the new minimum of 4. Because the path spread happens over time, this shouldn't result in a rebuild of several paths: we'll build 4 quickly, then another at +4m, another at +8m, etc. When the initial 4 expire, we'll be dropping from 9 to 5 established but that's still above the minimum (4) so we won't need to reconnect to several at once, and the spread builds should keep us at 5 all the time.	4 years ago
Jason Rhinelander	27b8743107	Add warns for introset publish failures	4 years ago
Stephen Shelton	62014de91c	Handle PubIntro relayOrder logic on client-side	4 years ago
Stephen Shelton	61d19179f7	Remove dead code	4 years ago
Jeff Becker	ce335dc47d	remove convotags on dead outbound context	4 years ago
Jeff	19a751c41b	Merge pull request #1127 from notlesh/spread-snapp-path-builds-evenly-2020-02-24 ... Spread snapp path builds evenly	4 years ago
Jeff	4f29405e9e	Merge pull request #1115 from majestrate/handle-multiple-responses-per-lookup-2020-02-20 ... handle multiple responses per hidden service lookup	4 years ago
Stephen Shelton	abe4015986	Use constants for path build timing	4 years ago
Stephen Shelton	230037b9f3	Increase default path timeout from 10min to 20min	4 years ago
Stephen Shelton	f0374eb2b7	Use existing 'lastBuild' var for spacing path builds	4 years ago
Stephen Shelton	c2c010dbad	Make format	4 years ago
Stephen Shelton	c1b5e453c7	Big I, little i, what begins with I?	4 years ago
Stephen Shelton	1db6c6ae3b	Make format	4 years ago
Stephen Shelton	c2f719c996	Build endpoint paths at even[ish] intervals	4 years ago
Jeff Becker	d2d109e92c	llarp_time_t is now using std::chrono	4 years ago
Jason Rhinelander	089056ca5b	Remove all ABSL_ATTRIBUTE_UNUSED uses	4 years ago
Jason Rhinelander	b4440094b0	De-abseil, part 2: mutex, locks, (most) time ... - util::Mutex is now a std::shared_timed_mutex, which is capable of exclusive and shared locks. - util::Lock is still present as a std::lock_guard<util::Mutex>. - the locking annotations are preserved, but updated to the latest supported by clang rather than using abseil's older/deprecated ones. - ACQUIRE_LOCK macro is gone since we don't pass mutexes by pointer into locks anymore (WTF abseil). - ReleasableLock is gone. Instead there are now some llarp::util helper methods to obtain unique and/or shared locks: - `auto lock = util::unique_lock(mutex);` gets an RAII-but-also unlockable object (std::unique_lock<T>, with T inferred from `mutex`). - `auto lock = util::shared_lock(mutex);` gets an RAII shared (i.e. "reader") lock of the mutex. - `auto lock = util::unique_locks(mutex1, mutex2, mutex3);` can be used to atomically lock multiple mutexes at once (returning a tuple of the locks). This are templated on the mutex which makes them a bit more flexible than using a concrete type: they can be used for any type of lockable mutex, not only util::Mutex. (Some of the code here uses them for getting locks around a std::mutex). Until C++17, using the RAII types is painfully verbose: ```C++ // pre-C++17 - needing to figure out the mutex type here is annoying: std::unique_lock<util::Mutex> lock(mutex); // pre-C++17 and even more verbose (but at least the type isn't needed): std::unique_lock<decltype(mutex)> lock(mutex); // our compromise: auto lock = util::unique_lock(mutex); // C++17: std::unique_lock lock(mutex); ``` All of these functions will also warn (under gcc or clang) if you discard the return value. You can also do fancy things like `auto l = util::unique_lock(mutex, std::adopt_lock)` (which lets a lock take over an already-locked mutex). - metrics code is gone, which also removes a big pile of code that was only used by metrics: - llarp::util::Scheduler - llarp:🧵:TimerQueue - llarp::util::Stopwatch	4 years ago
Jeff Becker	748be8eec8	handle multiple responses per hidden service lookup	4 years ago
Stephen Shelton	0429bafbb3	Merge pull request #1111 from notlesh/redundant-introset-propagation-2020-02-19 ... Redundant introset propagation	4 years ago
Jeff	6ac5f19b3a	Merge pull request #1110 from jagerman/no-abseil-optional ... De-abseil, part 1: remove absl::optional	4 years ago
Stephen Shelton	4c499fb076	Make format	4 years ago
Stephen Shelton	dff9aeb250	Propagate Introset publishing redundantly	4 years ago
Jeff Becker	dc7828941f	add log statement	4 years ago
Jason Rhinelander	ac1486d0be	Replace absl::optional with optional-lite ... Step 1 of removing abseil from lokinet. For the most part this is a drop-in replacement, but there are also a few changes here to the JSONRPC layer that were needed to work around current gcc 10 dev snapshot: - JSONRPC returns a json now instead of an optional<json>. It doesn't make any sense to have a json rpc call that just closes the connection with returning anything. Invoked functions can return a null (default constructed) result now if they don't have anything to return (such a null value won't be added as "result").	4 years ago
Jeff	20bc168d1c	Merge pull request #1093 from majestrate/toggle-publishing-introsets-2020-02-11 ... make publishing introsets optional	4 years ago
Jeff Becker	e907d2ae19	handover fixes	4 years ago
Jeff Becker	02228ded08	spread out path builds	4 years ago
Jason Rhinelander	c3637c81fd	Remove another unused randomize parameter	4 years ago
Jason Rhinelander	24469daefb	Remove unused parameter ... We always randomize now.	4 years ago
Stephen Shelton	906803e387	Refactor DHT introset lookups to use redundant lookup strategy	4 years ago
Jeff Becker	4d4b33607f	dont use optional	4 years ago
Jeff Becker	23bcfa4abb	revert change	4 years ago
Jeff Becker	df8c56343d	refactor GetManyPathsWithUniqueEndpoints to go into service/endpoint_util.hpp	4 years ago
Jeff Becker	fc5e6b4d77	log location	4 years ago
Jeff Becker	3cc2adae31	paralell publish and lookups	4 years ago
Jeff Becker	e30c720446	redundant publish for service endpoint	4 years ago
Jeff Becker	2b6f27d60d	remove connect back logic for dead inbound sessions	4 years ago
Jeff Becker	70eb353c42	make publishing introsets optional using reachable=false to disable	4 years ago
Jeff Becker	99eb7726ff	initial dht key blinding	4 years ago
Jeff Becker	2c0dc12f39	refactor single char variables in DHT (mostly)	4 years ago
Jeff Becker	a17b5f25b5	check for zero'd rc	4 years ago
Jeff Becker	2d82e931da	try doing lookup from close router, randomize when above lookup threshold	4 years ago
Jeff Becker	8a5365d9a6	diversify endpoints	4 years ago
Jeff Becker	5ae428a114	Revert "remove call to link manager" ... This reverts commit 3dd36fa11a.	4 years ago
Jeff Becker	a5121c346c	remove call to link manager	4 years ago
Jeff Becker	d1a29884df	client side perf improvement	4 years ago
Jeff Becker	79c3c748e4	limit number of snode sessions client side	4 years ago
Stephen Shelton	2c6226f54a	Backup SNApp keys when migrating to new ed25519 crypto	5 years ago
Jeff Becker	0828307906	fix address mapping bug	5 years ago
Jeff Becker	8849173112	try async decrypt then verify	5 years ago
Jeff Becker	ba0fd223d9	reduce number of jobs we put onto the logic thread	5 years ago
Jeff Becker	56dce90de9	add trace log level for tracking logic thread jobs	5 years ago
Jeff Becker	2c5561fc3c	make format	5 years ago
Jeff Becker	7ee026fa50	make path builds work again	5 years ago
jeff	32ed821763	Merge remote-tracking branch 'upstream/dev' into multithreaded-cryptography	5 years ago
jeff	7c691cf334	handover should be fixed now	5 years ago
jeff	6c2ebbb925	try fixing handover and add snapp traffic to multithreaded crypto workers	5 years ago
Jeff Becker	327c545530	finish multithread cryptography first pass	5 years ago
jeff	14c9ef15ed	try calling stuff in logic thread from event loop	5 years ago
Jeff Becker	1adae338ce	Merge remote-tracking branch 'origin/master'	5 years ago
Michael	edd0ec398f	Move thread stuff to subdirectory	5 years ago
Michael	4d8fe2a8a8	Move meta programming to subdirectory	5 years ago
Jeff Becker	c01112e4b7	tracy lock contention testing and other fun things	5 years ago
Jeff Becker	eabbb83149	use estimated build time instead of expiration time for delta when determining when to space out builds	5 years ago
Jeff Becker	e0424a91a7	bump path build handover window, check cooldown on build.	5 years ago
Jeff Becker	3c3338e801	Merge remote-tracking branch 'origin/master' into memlink	5 years ago
Michael	094b697b01	Replace StatusObject with underlying JSON type	5 years ago
Michael	16cdfbd5f0	clang-tidy modernize pass	5 years ago
Jeff Becker	c1f33bb1ac	initial mempipe implementation	5 years ago
Michael	f9e9227e19	Fix gcc trunk warnings	5 years ago
Jeff Becker	db2206664a	fix crashes in testnet	5 years ago
Jeff Becker	f48754c45d	make hop count and length configurable	5 years ago
Michael	e52492911d	Refactor endpoint state management to a new class	5 years ago
Jeff Becker	1fd6b5ae74	Merge remote-tracking branch 'origin/master' into ipv6-tun	5 years ago
Michael	488695047f	Remove redundant else blocks	5 years ago
Jeff Becker	b9bcc2b775	make threadpool consice	5 years ago
Jeff Becker	fd911d0c52	make format	5 years ago
Jeff Becker	6467d21ba0	* fix testnet codepath ... * add packet info for osx	5 years ago
Jeff Becker	81cab62bb9	* fix testnet codepath ... * add packet info for osx	5 years ago
Jeff Becker	5874c38b38	swap path on inbound convo if expires soon	5 years ago
Jeff Becker	f211ff182a	pick ready paths for reply	5 years ago
Jeff Becker	d6ec528a72	start work on seperating ips out of endpoint	5 years ago
Jeff Becker	64e9622270	start seperating tun and endpoint	5 years ago
Jeff Becker	0146a967d0	fix convotag inbound state setting	5 years ago
Jeff Becker	6bca652182	choose first timestamp	5 years ago