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path: root/crates/tor-cell/src/relaycell/msg.rs
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* maint: Run maint/add_warning to deny string slicesClara Engler2026-06-091-0/+1
| | | | | | | | | | | | This commit executes maint/add_warning with the just added change to deny string slices except in tests. I recommend auditing this by checking out the previous commit followed by running the script yourself and then verifying that the diff is identical to this commit. This commit makes cargo clippy fail. We will add exceptions in the next commit.
* cell: Derive PartialEq for Begin and BeginFlagsGabriela Moldovan2026-03-251-2/+2
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* cell: Add an accessor for the linkspecs of an EXTEND2Gabriela Moldovan2026-02-051-0/+5
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* Remove unnecessary `doc(cfg(...))` attributesNeel Chauhan2025-12-041-3/+0
| | | | | | | | | Fixes part of #2193. (Edits from nickm: I selected the cases here that I could verify were correct from immediate context.) Edited-by: Nick Mathewson <[email protected]>
* Fix name of clippy lint to unchecked_time_subtraction (2)Ian Jackson2025-11-061-1/+1
| | | | Run maint/add_warning
* Decorate a use with an allowIan Jackson2025-11-061-0/+1
| | | | | | | This seems to depend on cfgs. As I say in #1060, I don't think precise cfg decoration of imports is sensible. Also, it shouldn't be my job to fix whatever this is...
* Switch Cargo.toml files to edition 2024.Nick Mathewson2025-08-071-4/+4
| | | | | | | | | | | | | | First, run ``` git grep -l "^edition =" | xargs perl -i -pe 's/^edition *=.*/edition = "2024"/;' ``` Second, manually verify that all Cargo.toml files have changed, and nothing else has changed. Third, run cargo fmt again.
* tor-cell: remove `flowctl-cc` feature and make XON/XOFF cells stableSteven Engler2025-07-151-7/+1
| | | | | I don't see any further changes being needed for these types, and it simplifies a lot of future code in tor-proto that uses these types.
* tor-cell: add `Xon`/`Xoff` cellsSteven Engler2025-06-091-0/+13
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* arti, cell, dirclient: Use expect instead of unwrap.Nick Mathewson2025-05-291-2/+3
| | | | | | Clippy nightly detects this problem, though earlier clippy verisons haven't. The common element here is applying unwrap() to the result from a write!().
* proto: Use SendmeTag in place of CircTagNick Mathewson2025-05-061-4/+2
| | | | | This doesn't make much change yet, but does save us an allocation when handling SENDMEs.
* tor-cell: define a new SendmeTag typeNick Mathewson2025-05-061-9/+149
| | | | | | | | | | | | | | | | This is a more efficient representation for the tag on an authenticated SENDME message: it comes in at 21 bytes. Previously, we used Vec<u8>, which has 24 bytes of overhead (on a 64 bit system), plus malloc overhead, plus 20 bytes of allocated tag. We had a similar type to this as `tor_proto::congestion::sendme::CircTag`, but it could only accomodate 20-byte values. I don't expect that we will have enough of these simultaneously that the memory savings will matter, but the allocation savings could be significant.
* cell, proto: Use correct Data sizes for v1 relay cellsNick Mathewson2025-04-161-6/+28
| | | | | | | | | | | | Since v1 cells have a longer tag, they can fit less data into a single cell. Ah well, that's the cost of improved security. The code in data.rs is a little wonky, in that it currently requires its buffer to be exactly the maximum size for a data cell. We have a TODO about fixing that in the future, but for now I've moved it to use a boxed slice rather than a boxed array. Part of #1944.
* cell: Remove the deprecated Data::split_from().Nick Mathewson2025-04-161-14/+0
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* Note some places where we need updates for #1944.Nick Mathewson2025-04-161-0/+1
| | | | (Also note a couple of other CGO-related issues)
* tor-cell: Implement RelayMsg for all conflux message types.Gabriela Moldovan2025-03-171-1/+1
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* tor-cell: Add encodable conflux relay message types.Gabriela Moldovan2025-02-181-0/+19
| | | | | | | This adds support for encoding and decoding `RELAY_CONFLUX_LINK`, `RELAY_CONFLUX_LINKED`, and `RELAY_CONFLUX_SWITCH` cells. Closes #1852
* Some HasMemoryCost impls in tor-cellIan Jackson2024-10-021-16/+37
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* tor_cell: never construct empty DATA messages.Nick Mathewson2024-02-131-3/+28
| | | | | | | We never actually constructed these before, but now we enforce it at the API level. Part of #1269.
* tor_cell: Reject empty DATA messagesNick Mathewson2024-02-131-0/+3
| | | | | | | | | | | If we don't reject these, they are a way to inject an undetected traffic signal. (This is LOW severity, since we only accept DATA when a stream is open, since DATA messages are rate-limited, and since using length==1 is nearly as effective.) Closes #1269. This is TROVE-2024-001.
* educe: Use std's default for enums where default variant is unitIan Jackson2024-02-121-4/+2
| | | | | | | | | | | | | Since Rust 1.66, std's default works properly for enums, provided that the default variant is a unit. Review all uses of `#[educe(default)]` on enums and replace them with std where possible, which is most of them. In 1.66 and later, std's `#[derive(Default)]` doesn't infer any generic bounds on the derived impl, where it's an enum - since the unit variant can always be constructed. So this change doesn't add any generic bounds and is not API-visible.
* Use HandshakeType in Extend2 and CircuitExtender::beginJim Newsome2023-11-271-6/+12
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* tor-cell: Add accessors for Begin.Nick Mathewson2023-09-271-0/+15
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* proto: Convert MsgHandler API to expect a message, not a cell.Nick Mathewson2023-06-121-1/+15
| | | | Closes #887.
* Change CircTarget::linkspecs() to return an encoded list.Nick Mathewson2023-05-101-3/+3
| | | | | | | | If we didn't do this, we would need to transfrom `EncodedLinkSpec`s into a `LinkSpec::Unrecognized`, which is not semantically right. What's more, every user of this API wants to consume encoded link specifiers, so encoding them early saves a little effort.
* Move responsibility for linkspec sorting to CircTarget.Nick Mathewson2023-05-101-3/+1
| | | | | | This change is necessary so that we can build Extend2 messages that have their LinkSpecs appear in a verbatim order as provided in an INTRODUCE2 message or in a HS descriptor.
* Upgrade to bitflags 2.0Nick Mathewson2023-03-131-0/+1
| | | | | This version of bitflags now requires us to explicitly list the traits that we want to derive for our bit-flags structs.
* Change several cfgs to refer to new feature names.Nick Mathewson2023-02-281-12/+12
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* Rename onion-* cargo features to hs-* in tor-* cratesIan Jackson2023-02-281-12/+12
| | | | Fixes #756
* Rearrange cfg_attr in relaycell::msgNick Mathewson2023-02-211-2/+2
| | | | | docsrs wants to find its `cfg_attr(docsrs...)` line after the `cfg()` line.
* Merge branch 'hs-cells-1' into 'main'Nick Mathewson2023-02-161-3/+3
|\ | | | | | | | | Start refactoring hs cell implementations See merge request tpo/core/arti!1020
| * tor-cell: Extract establish-intro into its own module.Nick Mathewson2023-02-151-2/+2
| | | | | | | | | | | | | | Some of the HS message types have a lot of dependent types, like extensions and options for those extensions, and so on. Except when those extensions are portable across cell types, it makes sense to put them in their own modules.
| * tor-cell: rename onion_service module to hsNick Mathewson2023-02-151-1/+1
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* | tor-cell: add a TODO comment about simplifying Body away.Nick Mathewson2023-02-151-0/+4
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* | tor-cell: Implement {Relay,Chan}Msg for every body typeNick Mathewson2023-02-151-0/+46
| | | | | | | | | | This will make it ergonomic to decode a single body type without having to declare a variant that accepts only a single message.
* | tor-cell: Note an opportunity for future optimizationNick Mathewson2023-02-151-0/+5
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* Change tor_bytes::Error::BadMessage to a Cow.Nick Mathewson2023-02-091-7/+13
| | | | | | | | | | Actually, to avoid making a breaking change, I'm deprecating BadMessage and creating a new InvalidMessage variant that takes a Cow. This way I don't need to track every crate that re-exposes tor_bytes::Error and call this a breaking change in those. Making this change will allow tor_bytes errors to be much more helpful.
* tor-cell: Have restrict_msg add conversion functions.Nick Mathewson2023-02-091-50/+1
| | | | | | | | | | | | | | | | Every FooMsg type now implements Into<AnyFooMsg>, and TryFrom<FooMsg>. Additionally, it now implements From<X> for every distinct type that it supports. This last part lets us discard a bunch of code. Unfortunately, I needed some downright hackish trickery in order to get these macros to avoid generating `From<AnyFooMsg> for AnyFooMsg` and conflicting with the blanket implementation. The trickery to deal with RelayEarly and Relay being the same type was not necessarily worth it; I will be separating them and removing said trickery in the next commit.
* tor-cell: documentation cleanups related to restricted_msgNick Mathewson2023-02-071-0/+2
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* tor-cell: correct handling of optional msg types.Nick Mathewson2023-02-071-12/+12
| | | | | | We need to make sure any `#[cfg(feature=...)]` attributes are applied not only to our variant declarations, but also to the branches in the match statements that deal with them.
* tor-cell: Rename RelayMsg and RelayCell-related types.Nick Mathewson2023-02-071-32/+32
| | | | Thanks to rust-analyzer for making this simple.
* tor-cell: Remove RelayMsg methods that are duplicated in RelayMsgClass.Nick Mathewson2023-02-071-15/+0
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* tor-cell: Use macro to define RelayMsg type too.Nick Mathewson2023-02-071-183/+39
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* tor-cell: Change all variants of RelayMsg to have a body.Nick Mathewson2023-02-071-12/+49
| | | | | Previously, there were some unit variants, but that makes things quite awkward for #525.
* tor-cell: Make Body and MsgClass traits more uniform.Nick Mathewson2023-02-071-21/+21
| | | | | | | | Doing this will make it much easier to implement a macro that generates restricted instances of the Msg types (for #525). The Body change is a breaking change. I don't think anybody else implements Body, but in theory they could.
* tor-cell: Generic "Restricted{Relay,Chan}Cell" types.Nick Mathewson2023-02-071-7/+20
| | | | | | | These are generalizations of RelayCell and ChanCell respectively, that allow using an arbitrary message type in place of the fully general RelayMsg and ChanMsg types. Doing this is a prerequisite for usefully implementing arti#525.
* Sketch out new required APIs in tor-cellNick Mathewson2023-01-061-3/+54
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* Merge branch 'assert_maxlen' into 'main'Nick Mathewson2022-10-271-1/+2
|\ | | | | | | | | tor-cell: Assert data length in Data cells See merge request tpo/core/arti!800
| * tor-cell: Assert data length in Data cellsEmil Engler2022-10-241-1/+2
| | | | | | | | | | | | This commit adds a `debug_assert!` macro into the `new_unchecked()` function of the Data cell. Beside this, it also fixes a misleading comment regarding that limit.
* | Merge branch 'fix_typos' into 'main'eta2022-10-251-2/+2
|\ \ | | | | | | | | | | | | tor-cell: Fix typos in msg.rs See merge request tpo/core/arti!802
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