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path: root/crates/tor-dirmgr/src/bootstrap.rs
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* dirmgr: Limit the number of mds that we will fetch from sqlite at once.Nick Mathewson2024-06-121-6/+14
| | | | | | This should help limit our memory usage when restarting from cache. Possible (imperfect) solution for #1027.
* dirmgr: split out the loading part of load_once into a new function.Nick Mathewson2024-06-121-6/+17
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* properly report bootstrap readiness without cachetrinity-1686a2024-04-291-0/+3
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* Run maint/add_warning.Nick Mathewson2024-03-131-0/+1
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* clippy: Use Result::cloned in several placesIan Jackson2024-01-311-1/+1
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* oneshot: Apply deferred rustfmt churnIan Jackson2023-10-111-1/+1
| | | | cargo fmt, precisely.
* oneshot: Use veneer in tor-dirmgrIan Jackson2023-10-111-1/+1
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* Run maint/add_warning to add lint block everywhereIan Jackson2023-08-231-0/+1
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* Run maint/add_warning to actually apply new lint allowsIan Jackson2023-07-101-0/+1
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* Throughout: Use *_report!() macros for reporting Errors.Nick Mathewson2023-07-071-7/+8
| | | | | | | | | | | | | | | I identified the cases to replace by searching for the string `.report()`. There are a few that I didn't change: * A couple of cases that used anyhow::Error, * One case that reported two Errors. * Two cases in `tor_hsclient::err` that just did `error!("Bug: {}")`. I have also not audited the cases in `tor-hsclient` where we're using `tor_error::Report` manually. Nonetheless, closes #949.
* DirMgr: more trace!() logs and information in download/load functions.Nick Mathewson2023-05-031-8/+30
| | | | | | | My goal here is to make sure that we can't confuse one download operation and another, and that we actually know what's going on. Previously, not all state transitions or attempts to fetch information actually corresponded to a log.
* Use ErrorReport for errors in warn! in tor-dirmgrIan Jackson2023-01-301-5/+5
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* Use ErrorReport for errors in info! in tor-dirmgrIan Jackson2023-01-301-1/+2
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* Allow clippy::unchecked_duration_subtraction in testsNick Mathewson2023-01-271-0/+1
| | | | | This panics on error, and we're fine with a panic on misbehavior in tests.
* test lint blocks: Add many many automaticallyIan Jackson2022-12-121-0/+8
| | | | | This is precisely the result of running the rune in maint/adhoc-add-lint-blocks.
* dirmgr Store: Use `**` syntax and deref to trait objectsIan Jackson2022-11-141-11/+6
| | | | This will allow us to get rid of a needless trait impl.
* tor-dirclient: Make RequestFailed its own error typeIan Jackson2022-10-201-5/+5
| | | | | | | We're going to have functions on Response that fail by returning only one of these. Sadly this diff is quite noisy.
* tor-dirclient Response: Rename output methodsIan Jackson2022-10-201-1/+1
| | | | | These don't check errors and are therefore quite hazardous. I'm going to introduce a more cooked version in a moment.
* fix clippy::unwrap_used and old TODO for msrv 1.56trinity-1686a2022-09-101-9/+6
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* `TaskSchedule`: give error on `sleep*()` if last handle is droppedNick Mathewson2022-09-071-1/+1
| | | | | | | | | | | | | | | | | | This fixes an busy-loop. When the last `TaskHandle` on a `TaskSchedule` is dropped, the schedule is permanently canceled: whatever operation it was scheduling should no longer be performed. But our code was broken: the `sleep()` and `sleep_until_wallclock()` functions don't verify whether the handles are dropped or not. This breakage caused an CPU-eating busy-loop in `sleep_until_wallclock`. With this patch, we now return a `Result<(), SleepError>` from these functions. Fixes #572.
* tor-dirmgr: Remove opt_netdir entirely.Nick Mathewson2022-07-261-3/+3
| | | | Its existence tended to hide bugs, and was just asking for trouble.
* Make display formats work with older derive_more.Nick Mathewson2022-06-141-1/+1
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* Do not update_progress on load if nothing happened.Nick Mathewson2022-06-141-6/+10
| | | | | If there was no partial information, then calling update_progress will now report a stall in this case, which is not what we want.
* DirMgr: Track errors, stalls, and resets as part of status.Nick Mathewson2022-06-131-1/+9
| | | | | | | | | | | | | | A "reset" happens whenever we have to start a download attempt over -- either because we ran out of retries, or we found something wrong with the consensus after fetching certificates. An "error" happens when we have a recoverable error from one or more directory sources. A "stall" happens whenever a round of downloads or cache loads leads to no change in the status. We don't yet use this as part of our status reporting.
* Refactor our logic for distinguishing download attemptsNick Mathewson2022-06-131-6/+47
| | | | | | | | | | | | | Previously we used the "if-modified-since" time associated with the consensus download, and/or the "valid-after" time in the consensus attempt, to put multiple attempts into sequence, and to tell one from another. But that approach was always a kludge, and will soon get more unreliable as the DirStatus logic gets a bit more complex. With this commit, we change separate download attempts to be identified with an AttemptId that increments whenever we decide to get a different directory from the one we have. IMO this new code is _much_ cleaner.
* Refactor most DirStatus users to use DirProgress.Nick Mathewson2022-06-131-4/+4
| | | | This is all crate-internal APIs, fortunately.
* DirMgr: Refactor bootstrap to use a TaskSchedule for sleeping.Nick Mathewson2022-06-101-18/+36
| | | | | | This change (not yet exposed as an API) will let the TorClient have a `TaskHandle` corresponding to the directory task, letting it make the directory task dormant as needed.
* DirMgr:: Remove Error::NoChange as redundant.Nick Mathewson2022-05-251-22/+7
| | | | | | | | Now that the relevant functions now report changed/not-changed status via a boolean out-parameter (see !527), there's no reason to have a separate NoChanged error case. Closes #484.
* DirMgr: Stop load-from-cache process when there is no change.Nick Mathewson2022-05-241-9/+28
| | | | | | | | | | | | Previously in !511 I had introduced a bug where, if there was an error more serious than "no change", that error would keep us from noticing that we had no change, and we'd loop until the safety counter ran out. Then we'd panic. This commit fixes the bug by reintroducing the `changed` boolean -- this time as an outparam for the add_from_* methods. Fixes #482.
* Simplify advance and reset functions with mem::replace.Nick Mathewson2022-05-191-8/+4
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* Explain why we call update_status unconditionally.Nick Mathewson2022-05-191-0/+3
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* Remove BootstrapAction::ImpossibleNick Mathewson2022-05-191-1/+1
| | | | It does nothing that Fatal does not. Suggested by @eta in review.
* DirMgr: Remove blocking_error return path.Nick Mathewson2022-05-171-27/+7
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* DirMgr: Unify error return pathsNick Mathewson2022-05-171-73/+106
| | | | | | | | | | | | | | | | | We no longer have separate return paths for recoverable and fatal errors; instead, they are merged, and distinguished based on recovery actions. Since it is now possible for download() to give an error that should _not_ destroy the previous state, it takes `&mut Box<dyn DirState>`. This change unfortunately means that we can no longer call `state = state.advance()`, but instead have to do some mem::swap junk with poisoned values. Any better solution would be a good thing. Additionally, the reset() and advance() methods can no longer fail. There is still a separate return path for reset-triggering errors; I'm about to fix that.
* DirMgr: Remove special handling of "changed" booleanNick Mathewson2022-05-171-31/+26
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* DirMgr: Blame the correct cache for consensus validation failureNick Mathewson2022-05-161-2/+15
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* On a blocking error, blame the appropriate directory cacheNick Mathewson2022-05-161-0/+10
| | | | | Fortunately, the only error type that we need to handle blocking errors with actually has a DirSource in it already.
* DirMgr: Add a way for a state to report a blocking error.Nick Mathewson2022-05-161-7/+21
| | | | | (A blocking error is one that means that the current bootstrap attempt has failed, and must be restarted.)
* DirMgr: Let add_from_* distinguish non-fatal errorsNick Mathewson2022-05-161-24/+32
| | | | | | | Previously all errors were treated as non-fatal. The add_from_* implementations don't yet behave properly; I'll fix them in subsequent commits.
* DirMgr: make DocSource useful by having it include dirserver info.Nick Mathewson2022-05-161-1/+7
| | | | | | | | | Previously DocSource would tell you whether the document was from a local store or a cache server, but it wouldn't tell you _which_ server it came from. This change required adding DocSource as an argument to DirState::add_from_download.
* dirmgr: use set_skew_limit.Nick Mathewson2022-05-111-0/+9
| | | | | | | | | | With this API we can now stop consensus download attempts early if any consensus that the directory cache gave us would be necessarily too far in the future or in the past. This saves wasted bandwidth for clients with skewed clocks. Closes #466.
* Adjust if-modified-since field on the basis of tolerated skewNick Mathewson2022-05-111-3/+16
| | | | | | | | | | If we're happy with a directory from 3 days ago, we should say "if-modified-since 3 days ago". This patch is larger than I'd like, since I had to add &DirMgrConfig as an argument to the functions that make a consensus request. Closes #467.
* tor-dirmgr: move apply_netdir_changes() to be a DirMgr methodeta2022-05-101-76/+5
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* tor-dirmgr: small fixups for the bootstrapping refactoreta2022-05-101-5/+3
| | | | | | | - Some FIXMEs got removed or amended. - AddMicrodescs now yields a mutable reference, so we can use .drain() and reuse the allocation. - Some panics were downgraded to debug_asserts.
* tor-dirmgr/bootstrap.rs: error on older netdirs, add log lineeta2022-05-101-0/+21
| | | | | | | | - We don't want to inadvertently replace our netdir with one that's actually older, so detect and error on this condition. - Also, print a debug line when we get a new netdir without enough guards. - (An unrelated TODO was also added.)
* tor-dirmgr/state.rs: use the NetDirChange API instead of WriteNetDireta2022-05-101-17/+14
| | | | | | | | | | | - GetMicrodescsState now uses the NetDirChange API to propagate netdir changes, instead of modifying the netdir directly. - PendingNetDir was refactored in order to support this use case. - As a result, the netdir-related methods in WriteNetDir can be removed, leaving only the DirFilter for now. - add_from_cache() no longer takes a store, because nothing uses it. - (bodge: apply_netdir_changes() was put in a few places missed previously)
* tor-dirmgr/state.rs: add new NetDirChange API, consume iteta2022-05-101-3/+72
| | | | | | | | | | | | | - The new DirState::get_netdir_change() API lets the state machine export a NetDirChange: a request to either replace the current netdir, or add microdescs to it. - bootstrap.rs now consumes this new API, even though nothing implements it yet. - This will let us implement GetMicrodescsState without having to directly mutate the netdir. The calling code also handles checking the netdir against the circmgr for sufficiency, and updating the consensus metadata in the store, meaning the revised GetMicrodescsState will not have to perform these tasks.
* tor-dirmgr/state.rs: feed through additional parameters, use themeta2022-05-101-6/+5
| | | | | | | | | | | | | | - The additional parameters passed to GetConsensusState are now passed through all the states, and used as well. - WriteNetDir doesn't have a now() or config() method any more, since the states now get this from the runtime or the config parameters. - This required modifying the tests to make a mocked runtime and custom config directly, instead of using DirRcv for this purpose. - Additionally, because we don't have to upgrade a weak reference for DirState::dl_config(), that function no longer wraps its return value in Result. - (A bunch of the FIXMEs from the previous commit that introduced the additional parameters have now been rectified as a result.)
* tor-dirmgr: move DirState to state.rseta2022-05-101-1/+2
| | | | | | - Given that this is effectively an implementation detail, it doesn't really make sense to have it be in the crate root... - (also, we're going to change it a bunch now)
* tor-dirmgr/bootstrap.rs: refactor fetch_singleeta2022-05-101-31/+34
| | | | | | | - fetch_single now takes what it needs, instead of an Arc<DirMgr<R>>. - This required refactoring the CANNED_RESPONSE mechanism, given the test would otherwise fail due to not having a CircMgr to pass to fetch_single.
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