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Assets pallet: Giving the asset owner the ability to set minimum balance #13486

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Mar 2, 2023
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Assets pallet: Giving the asset owner the ability to set minimum balance #13486

merged 10 commits into from
Mar 2, 2023

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Szegoo
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@Szegoo Szegoo commented Feb 27, 2023 •
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Closes: #13402

Introduces a new extrinsic set_min_balance which allows the owner of the specific asset to change the min_balance required for an asset.

This is possible to do if there aren't any accounts holding the asset or if the new min balance is less than the old min balance.

Cumulus companion: paritytech/cumulus#2253

@Szegoo Szegoo changed the title set_min_balance Assets pallet: Giving the asset owner the ability to set minimum balance Feb 27, 2023
@Szegoo Szegoo marked this pull request as ready for review February 28, 2023 13:54
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Szegoo commented Feb 28, 2023

@jsidorenko @bkchr Could you review this?

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@jsidorenko jsidorenko added A0-please_review Pull request needs code review. B0-silent Changes should not be mentioned in any release notes and removed A0-please_review Pull request needs code review. B0-silent Changes should not be mentioned in any release notes labels Feb 28, 2023
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@bkchr bkchr added A0-please_review Pull request needs code review. D5-nicetohaveaudit ⚠️ PR contains trivial changes to logic that should be properly reviewed. B1-note_worthy Changes should be noted in the release notes T1-runtime This PR/Issue is related to the topic “runtime”. labels Feb 28, 2023
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bkchr commented Feb 28, 2023

@ggwpez could you please summon the mighty benchmark bot?

@bkchr bkchr added the C1-low PR touches the given topic and has a low impact on builders. label Feb 28, 2023
Szegoo and others added 2 commits February 28, 2023 20:53
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Update frame/assets/src/lib.rs
8011299 
Co-authored-by: Bastian Köcher <git@kchr.de>
@Szegoo @bkchr
Update frame/assets/src/lib.rs
2f3103e 
Co-authored-by: Bastian Köcher <git@kchr.de>
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ggwpez commented Feb 28, 2023

bot bench $ pallet dev pallet_assets

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command-bot bot commented Feb 28, 2023 •
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@ggwpez https://gitlab.parity.io/parity/mirrors/substrate/-/jobs/2463794 was started for your command "$PIPELINE_SCRIPTS_DIR/commands/bench/bench.sh" pallet dev pallet_assets. Check out https://gitlab.parity.io/parity/mirrors/substrate/-/pipelines?page=1&scope=all&username=group_605_bot to know what else is being executed currently.

Comment bot cancel 113-144b5381-c26e-4d25-965a-c1e9e2f097c2 to cancel this command or bot cancel to cancel all commands in this pull request.

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ggwpez commented Feb 28, 2023 •
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bot help

☝️ we finally got it

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command-bot bot commented Feb 28, 2023

Here's a link to docs

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command-bot bot commented Feb 28, 2023

@ggwpez Command "$PIPELINE_SCRIPTS_DIR/commands/bench/bench.sh" pallet dev pallet_assets has finished. Result: https://gitlab.parity.io/parity/mirrors/substrate/-/jobs/2463794 has finished. If any artifacts were generated, you can download them from https://gitlab.parity.io/parity/mirrors/substrate/-/jobs/2463794/artifacts/download.

@Szegoo Szegoo mentioned this pull request Feb 28, 2023
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bot merge

@paritytech-processbot paritytech-processbot bot merged commit 4aa213c into paritytech:master Mar 2, 2023
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IkerAlus commented Mar 2, 2023

Sorry for jumping in when this is already merged but I want to make sure this new extrinsic is not opening a door for blockchain state spamming:

Image the following: An asset is created on Statemint, the team behind the asset makes a gov proposal to make it sufficient with a reasonable min_balance similar to the ED in DOTs. The gov proposal is passed, then the team behind the asset (owner of the asset) lowers down the min_balance via this new extrinsic to a ridiculously small value. Attackers start spamming the blockchain with millions of super cheap transfer transactions to random accounts (fees will be low since they are proportional to min_balance value).

How is this scenario prevented? I was expecting to see a check for asset sufficiency to stop the update of the min_balance via the extrinsic.

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@IkerAlus You're right! There should be a check for sufficiency in that call, as you'be described in the issue

@Szegoo Szegoo mentioned this pull request Mar 2, 2023
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This pull request has been mentioned on Polkadot Forum. There might be relevant details there:

https://forum.polkadot.network/t/polkadot-release-analysis-v0-9-40/2468/1

@Garandor Garandor mentioned this pull request Apr 1, 2023
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@kiltbot kiltbot mentioned this pull request Apr 3, 2023
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@librelois librelois mentioned this pull request Apr 6, 2023
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ukint-vs pushed a commit to gear-tech/substrate that referenced this pull request Apr 10, 2023
@Szegoo @bkchr @ukint-vs
Assets pallet: Giving the asset owner the ability to set minimum bala…
882440c 
…nce (paritytech#13486)

* set_min_balance

* allow when new_min_balance < old_min_balance

* add more specific event

* Update frame/assets/src/lib.rs

Co-authored-by: Bastian Köcher <git@kchr.de>

* Update frame/assets/src/lib.rs

Co-authored-by: Bastian Köcher <git@kchr.de>

* ".git/.scripts/commands/bench/bench.sh" pallet dev pallet_assets

* use actual weight

---------

Co-authored-by: Bastian Köcher <git@kchr.de>
Co-authored-by: command-bot <>
@kacperzuk-neti kacperzuk-neti mentioned this pull request Jun 23, 2023
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nathanwhit pushed a commit to nathanwhit/substrate that referenced this pull request Jul 19, 2023
@Szegoo @bkchr @nathanwhit
Assets pallet: Giving the asset owner the ability to set minimum bala…
9e49a0d 
…nce (paritytech#13486)

* set_min_balance

* allow when new_min_balance < old_min_balance

* add more specific event

* Update frame/assets/src/lib.rs

Co-authored-by: Bastian Köcher <git@kchr.de>

* Update frame/assets/src/lib.rs

Co-authored-by: Bastian Köcher <git@kchr.de>

* ".git/.scripts/commands/bench/bench.sh" pallet dev pallet_assets

* use actual weight

---------

Co-authored-by: Bastian Köcher <git@kchr.de>
Co-authored-by: command-bot <>
@dmitrylavrenov dmitrylavrenov mentioned this pull request Nov 28, 2023
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A0-please_review Pull request needs code review. B1-note_worthy Changes should be noted in the release notes C1-low PR touches the given topic and has a low impact on builders. D5-nicetohaveaudit ⚠️ PR contains trivial changes to logic that should be properly reviewed. T1-runtime This PR/Issue is related to the topic “runtime”.
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Allow to update min_balance by asset owner for non-sufficient assets in assets pallet
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@Szegoo @bkchr @ggwpez @jsidorenko @IkerAlus @Polkadot-Forum