* pallet-timestamp: Remove `ValidAtTimestamp` error variant The error variant wasn't that useful and it was also used wrongly in the code. In the code we returned this variant when the `timestamp < minimum`. The problem of this is that we waited on the node side some time, but then `set` function rejects the timestamp because of the same check (the timestamp in the block stays the same). We ensure that the timestamp isn't drifting too much in the future, but waiting for the timestamp to be "valid" would open some attack vector. The consensus protocols also compare the slots in the blocks to ensure that there isn't a block from the future and in the runtime we then ensure that `slot = timestamp / slot_duration`. So, we can just remove this variant and replace it with a new variant `TimeBetweenBlocksTooShort` to not even try importing a block which uses a too short delay since the last block. * Update primitives/timestamp/src/lib.rs Co-authored-by: André Silva <123550+andresilva@users.noreply.github.com> * Rename to `TooEarly` * FMT --------- Co-authored-by: André Silva <123550+andresilva@users.noreply.github.com>
Substrate ·

Substrate is a next-generation framework for blockchain innovation 🚀.
Getting Started
Head to docs.substrate.io and follow the installation instructions. Then try out one of the tutorials.
Community & Support
Join the highly active and supportive community on the Substrate Stack Exchange to ask questions about use and problems you run into using this software. Please do report bugs and issues here for anything you suspect requires action in the source.
Contributions & Code of Conduct
Please follow the contributions guidelines as outlined in docs/CONTRIBUTING.adoc.
In all communications and contributions, this project follows the Contributor Covenant Code of Conduct.
Security
The security policy and procedures can be found in docs/SECURITY.md.
License
- Substrate Primitives (
sp-*), Frame (frame-*) and the pallets (pallets-*), binaries (/bin) and all other utilities are licensed under Apache 2.0. - Substrate Client (
/client/*/sc-*) is licensed under GPL v3.0 with a classpath linking exception.
The reason for the split-licensing is to ensure that for the vast majority of teams using Substrate to create feature-chains, then all changes can be made entirely in Apache2-licensed code, allowing teams full freedom over what and how they release and giving licensing clarity to commercial teams.
In the interests of the community, we require any deeper improvements made to Substrate's core logic (e.g. Substrate's internal consensus, crypto or database code) to be contributed back so everyone can benefit.
