Merge branch 'cosmos:main' into v0.47.x-ibc-ruslan

.github/ISSUE_TEMPLATE/release-tracker.md

@@ -26,10 +26,11 @@ v                     without deliberation
 <!-- List of tests that need be performed with previous
 versions of ibc-go to guarantee that no regression is introduced -->
 
-- [ ] Fungible token transfers over a non-incentivised channel works with a counterparty chain running each previous major version.
-- [ ] Fungible token transfers over an incentivised channel works with a counterparty chain running each previous major version that supports ICS-29 Fee Middleware.
-- [ ] Interchain Accounts over a non-incentivised channel works with a counterparty chain running each previous major version that supports ICS-27 Interchain Accounts over non-incentivised channels.
-- [ ] Interchain Accounts over an incentivised channel works with a counterparty chain running each previous major version that supports ICS-27 Interchain Accounts over incentivised channels.
+- [ ] [Compatibility tests](https://github.com/cosmos/ibc-go/actions/workflows/e2e-compatibility.yaml) pass for the release branch.
+- [ ] [Upgrade tests](https://github.com/cosmos/ibc-go/actions/workflows/e2e-upgrade.yaml) pass.
+- [ ] [Interchain Accounts inter-tx tests](https://github.com/cosmos/interchain-accounts-demo/actions/workflows/e2e-compatibility.yaml) pass.
+
+### Other testing
 
 ## Migration 
 
@@ -57,6 +58,7 @@ versions of ibc-go to guarantee that no regression is introduced -->
   - [ ] Add new release branch to [`docs/versions`](https://github.com/cosmos/ibc-go/blob/main/docs/versions) file.
   - [ ] Add `label` and `key` to `versions` array in [`config.js`](https://github.com/cosmos/ibc-go/blob/main/docs/.vuepress/config.js#L62).
 - [ ] After changes to docs site are deployed, check [ibc.cosmos.network](https://ibc.cosmos.network) is updated.
+- [ ] Open issue in [SDK tutorials repo](https://github.com/cosmos/sdk-tutorials) to update tutorials to the released version of ibc-go.
 
 ____
 

docs/migrations/v5-to-v6.md

@@ -23,7 +23,7 @@ This migration facilitates the addition of the ICS27 controller submodule `MsgSe
 
 For more information please refer to [ADR 009](../architecture/adr-009-v6-ics27-msgserver.md).
 
-#### Upgrade proposal
+### Upgrade proposal
 
 Please refer to [PR #2383](https://github.com/cosmos/ibc-go/pull/2383) for integrating the ICS27 channel capability migration logic or follow the steps outlined below:
 
@@ -87,21 +87,86 @@ app.UpgradeKeeper.SetUpgradeHandler(
 
 #### Controller APIs
 
-In previous releases of ibc-go, chain developers integrating the ICS27 interchain accounts controller functionality were expected to create a custom `Base Application` referred to as an authentication module, see: [Building an authentication module](../apps/interchain-accounts/auth-modules.md).
+In previous releases of ibc-go, chain developers integrating the ICS27 interchain accounts controller functionality were expected to create a custom `Base Application` referred to as an authentication module, see the section [Building an authentication module](../apps/interchain-accounts/auth-modules.md) from the documentation.
 
 The `Base Application` was intended to be composed with the ICS27 controller submodule `Keeper` and faciliate many forms of message authentication depending on a chain's particular use case.
 
-The controller submodule exposes two functions:
+Prior to ibc-go v6 the controller submodule exposed only these two functions (to which we will refer as the legacy APIs):
 
 - [`RegisterInterchainAccount`](https://github.com/cosmos/ibc-go/blob/v5.0.0/modules/apps/27-interchain-accounts/controller/keeper/account.go#L19)
 - [`SendTx`](https://github.com/cosmos/ibc-go/blob/v5.0.0/modules/apps/27-interchain-accounts/controller/keeper/relay.go#L18)
 
-These functions have been deprecated in favour of the new controller submodule `MsgServer` and will be removed in later releases. 
-Both APIs remain functional and maintain backwards compatibility in `ibc-go/v6`, however consumers of these APIs are now recommended to follow the message passing paradigm outlined in Cosmos SDK [ADR 031](https://github.com/cosmos/cosmos-sdk/blob/main/docs/architecture/adr-031-msg-service.md) and [ADR 033](https://github.com/cosmos/cosmos-sdk/blob/main/docs/architecture/adr-033-protobuf-inter-module-comm.md). This is facilitated by the Cosmos SDK [`MsgServiceRouter`](https://github.com/cosmos/cosmos-sdk/blob/main/baseapp/msg_service_router.go#L17) and chain developers creating custom application logic can now omit the ICS27 controller submodule `Keeper` from their module and instead depend on message routing.
+However, these functions have now been deprecated in favour of the new controller submodule `MsgServer` and will be removed in later releases. 
 
-Legacy APIs are still required if application developers wish to consume IBC packet callbacks and react upon packet acknowledgements. In future this will be replaced by IBC Actor Callbacks, see [ADR 008](https://github.com/cosmos/ibc-go/pull/1976).
+Both APIs remain functional and maintain backwards compatibility in ibc-go v6, however consumers of these APIs are now recommended to follow the message passing paradigm outlined in Cosmos SDK [ADR 031](https://github.com/cosmos/cosmos-sdk/blob/main/docs/architecture/adr-031-msg-service.md) and [ADR 033](https://github.com/cosmos/cosmos-sdk/blob/main/docs/architecture/adr-033-protobuf-inter-module-comm.md). This is facilitated by the Cosmos SDK [`MsgServiceRouter`](https://github.com/cosmos/cosmos-sdk/blob/main/baseapp/msg_service_router.go#L17) and chain developers creating custom application logic can now omit the ICS27 controller submodule `Keeper` from their module and instead depend on message routing. 
 
-For more information see the new [ICS27 integration documentation](TODO: add link to new docs).
+Depending on the use case, developers of custom authentication modules face one of three scenarios:
+
+![AuthModuleDecisionTree](../assets/auth-module-decision-tree.png)
+
+**My authentication module needs to access IBC packet callbacks**
+
+Application developers that wish to consume IBC packet callbacks and react upon packet acknowledgements **must** continue using the controller submodule's legacy APIs. The authentication modules will not need a `ScopedKeeper` anymore, though, because the channel capability will be claimed by the controller submodule. For example, given an Interchain Accounts authentication module keeper `ICAAuthKeeper`, the authentication module's `ScopedKeeper` (`scopedICAAuthKeeper`) is not needed anymore and can be removed for the argument list of the keeper constructor function, as shown here:
+
+```diff
+app.ICAAuthKeeper = icaauthkeeper.NewKeeper(
+    appCodec, 
+    keys[icaauthtypes.StoreKey], 
+    app.ICAControllerKeeper, 
+-   scopedICAAuthKeeper,
+)
+```
+
+Please note that the authentication module's `ScopedKeeper` name is still needed as part of the channel capability migration described in section [Upgrade proposal](#upgrade-proposal) above. Therefore the authentication module's `ScopedKeeper` cannot be completely removed from the chain code until the migration has run.
+
+In the future, the use of the legacy APIs for accessing packet callbacks will be replaced by IBC Actor Callbacks (see [ADR 008](https://github.com/cosmos/ibc-go/pull/1976) for more details) and it will also be possible to access them with the `MsgServiceRouter`.
+
+**My authentication module does not need access to IBC packet callbacks**
+
+The authentication module can migrate from using the legacy APIs and it can be composed instead with the `MsgServiceRouter`, so that the authentication module is able to pass messages to the controller submodule's `MsgServer` to register interchain accounts and send packets to the interchain account. For example, given an Interchain Accounts authentication module keeper `ICAAuthKeeper`, the ICS27 controller submodule keeper (`ICAControllerKeeper`) and authentication module scoped keeper (`scopedICAAuthKeeper`) are not needed anymore and can be replaced with the `MsgServiceRouter`, as shown here:
+
+```diff
+app.ICAAuthKeeper = icaauthkeeper.NewKeeper(
+    appCodec, 
+    keys[icaauthtypes.StoreKey], 
+-   app.ICAControllerKeeper, 
+-   scopedICAAuthKeeper,
++   app.MsgServiceRouter(),
+)
+```
+
+In your authentication module you can route messages to the controller submodule's `MsgServer` instead of using the legacy APIs. For example, for registering an interchain account:
+
+```diff
+- if err := keeper.icaControllerKeeper.RegisterInterchainAccount(
+-    ctx, 
+-    connectionID, 
+-    owner.String(), 
+-    version,
+- ); err != nil {
+-    return err
+- }
++ msg := controllertypes.NewMsgRegisterInterchainAccount(
++    connectionID, 
++    owner.String(), 
++    version,
++ )
++ handler := keeper.msgRouter.Handler(msg)
++ res, err := handler(ctx, msg)
++ if err != nil {
++    return err
++ }
+```
+
+where `controllertypes` is an import alias for `"github.com/cosmos/ibc-go/v6/modules/apps/27-interchain-accounts/controller/types"`.
+
+In addition, in this use case the authentication module does not need to implement the `IBCModule` interface anymore.
+
+**I do not need a custom authentication module anymore**
+
+If your authentication module does not have any extra functionality compared to the default authentication module added in ibc-go v6 (the `MsgServer`), or if you can use a generic authentication module, such as the `x/auth`, `x/gov` or `x/group` modules from the Cosmos SDK (v0.46 and later), then you can remove your authentication module completely and use instead the gRPC endpoints of the `MsgServer` or the CLI added in ibc-go v6.
+
+Please remember that the authentication module's `ScopedKeeper` name is still needed as part of the channel capability migration described in section [Upgrade proposal](#upgrade-proposal) above.
 
 #### Host params
 
@@ -196,6 +261,27 @@ Callers no longer need to pass in a pre-constructed packet.
 The destination port/channel identifiers and the packet sequence will be determined by core IBC.
 `SendPacket` will return the packet sequence.
 
+### IBC testing package
+
+The `SendPacket` API has been simplified:
+
+```diff
+// SendPacket is called by a module in order to send an IBC packet on a channel
+func (k Keeper) SendPacket(
+    ctx sdk.Context,
+    channelCap *capabilitytypes.Capability,
+-   packet exported.PacketI,
+-) error {
++   sourcePort string,
++   sourceChannel string,
++   timeoutHeight clienttypes.Height,
++   timeoutTimestamp uint64,
++   data []byte,
++) (uint64, error) {
+```
+
+Callers no longer need to pass in a pre-constructed packet. `SendPacket` will return the packet sequence.
+
 ## Relayers
 
 - No relevant changes were made in this release.

modules/apps/27-interchain-accounts/module_test.go

@@ -48,7 +48,7 @@ func (suite *InterchainAccountsTestSuite) TestInitModule() {
 		Time:    suite.coordinator.CurrentTime.UTC(),
 	}
 
-	ctx := app.GetBaseApp().NewContext(true, header)
+	ctx := app.BaseApp.NewContext(true, header)
 
 	// ensure params are not set
 	suite.Require().Panics(func() {
@@ -114,7 +114,7 @@ func (suite *InterchainAccountsTestSuite) TestInitModule() {
 				Time:    suite.coordinator.CurrentTime.UTC(),
 			}
 
-			ctx := app.GetBaseApp().NewContext(true, header)
+			ctx := app.BaseApp.NewContext(true, header)
 
 			tc.malleate()
 

testing/simapp/app.go

@@ -706,21 +706,7 @@ func (app *SimApp) LoadHeight(height int64) error {
 	return app.LoadVersion(height)
 }
 
-// ModuleAccountAddrs returns all the app's module account addresses.
-func (app *SimApp) ModuleAccountAddrs() map[string]bool {
-	modAccAddrs := make(map[string]bool)
-	for acc := range maccPerms {
-		// do not add the following modules to blocked addresses
-		// this is only used for testing
-		if acc == ibcmock.ModuleName {
-			continue
-		}
 
-		modAccAddrs[authtypes.NewModuleAddress(acc).String()] = true
-	}
-
-	return modAccAddrs
-}
 
 // GetModuleManager returns the app module manager
 // NOTE: used for testing purposes

testing/simapp/app_v2.go

@@ -86,6 +86,14 @@ import (
 	upgradeclient "github.com/cosmos/cosmos-sdk/x/upgrade/client"
 	upgradekeeper "github.com/cosmos/cosmos-sdk/x/upgrade/keeper"
 	upgradetypes "github.com/cosmos/cosmos-sdk/x/upgrade/types"
+	ibcfeetypes "github.com/cosmos/ibc-go/v6/modules/apps/29-fee/types"
+	ibcmock "github.com/cosmos/ibc-go/v6/testing/mock"
+)
+
+// IBC application testing ports
+const (
+	MockFeePort string = ibcmock.ModuleName + ibcfeetypes.ModuleName
+
 )
 
 var (

testing/simapp/sim_bench_test.go

@@ -44,7 +44,7 @@ func BenchmarkFullAppSimulation(b *testing.B) {
 		AppStateFn(app.AppCodec(), app.SimulationManager()),
 		simtypes.RandomAccounts, // Replace with own random account function if using keys other than secp256k1
 		SimulationOperations(app, app.AppCodec(), config),
-		app.ModuleAccountAddrs(),
+		ModuleAccountAddrs(),
 		config,
 		app.AppCodec(),
 	)

testing/simapp/sim_test.go

@@ -144,7 +144,7 @@ func TestAppImportExport(t *testing.T) {
 
 	fmt.Printf("exporting genesis...\n")
 
-	exported, err := app.ExportAppStateAndValidators(false, []string{})
+	exported, err := app.ExportAppStateAndValidators(false, []string{}, []string{})
 	require.NoError(t, err)
 
 	fmt.Printf("importing genesis...\n")
@@ -252,7 +252,7 @@ func TestAppSimulationAfterImport(t *testing.T) {
 
 	fmt.Printf("exporting genesis...\n")
 
-	exported, err := app.ExportAppStateAndValidators(true, []string{})
+	exported, err := app.ExportAppStateAndValidators(true, []string{}, []string{})
 	require.NoError(t, err)
 
 	fmt.Printf("importing genesis...\n")
@@ -275,7 +275,7 @@ func TestAppSimulationAfterImport(t *testing.T) {
 	_, _, err = simulation.SimulateFromSeed(
 		t,
 		os.Stdout,
-		newApp.GetBaseApp(),
+		newApp.BaseApp,
 		AppStateFn(app.AppCodec(), app.SimulationManager()),
 		simtypes.RandomAccounts, // Replace with own random account function if using keys other than secp256k1
 		SimulationOperations(newApp, newApp.AppCodec(), config),

testing/simapp/simd/cmd/root.go

@@ -319,5 +319,5 @@ func (a appCreator) appExport(
 		simApp = simapp.NewSimApp(logger, db, traceStore, true, map[int64]bool{}, homePath, uint(1), a.encCfg, appOpts)
 	}
 
-	return simApp.ExportAppStateAndValidators(forZeroHeight, jailAllowedAddrs)
+	return simApp.ExportAppStateAndValidators(forZeroHeight, jailAllowedAddrs, modulesToExport)
 }

testing/simapp/test_helpers.go

@@ -21,6 +21,7 @@ import (
 	dbm "github.com/tendermint/tm-db"
 
 	"github.com/cosmos/ibc-go/v6/testing/mock"
+	ibcmock "github.com/cosmos/ibc-go/v6/testing/mock"
 )
 
 // DefaultConsensusParams defines the default Tendermint consensus params used in
@@ -42,13 +43,30 @@ var DefaultConsensusParams = &tmproto.ConsensusParams{
 	},
 }
 
+// ModuleAccountAddrs returns all the app's module account addresses.
+func (app *SimApp) ModuleAccountAddrs() map[string]bool {
+	modAccAddrs := make(map[string]bool)
+	for acc := range maccPerms {
+		// do not add the following modules to blocked addresses
+		// this is only used for testing
+		if acc == ibcmock.ModuleName {
+			continue
+		}
+
+		modAccAddrs[authtypes.NewModuleAddress(acc).String()] = true
+	}
+
+	return modAccAddrs
+}
+
 func setup(withGenesis bool, invCheckPeriod uint) (*SimApp, GenesisState) {
 	db := dbm.NewMemDB()
 	appOptions := make(simtestutil.AppOptionsMap, 0)
 	appOptions[flags.FlagHome] = DefaultNodeHome
 	appOptions[server.FlagInvCheckPeriod] = invCheckPeriod
 
-	app := NewSimApp(log.NewNopLogger(), db, nil, true, appOptions)
+	app := NewSimApp(log.NewNopLogger(), db, nil, true, simtestutil.EmptyAppOptions{})
+
 	if withGenesis {
 		return app, NewDefaultGenesisState(app.AppCodec())
 	}

testing/simapp/types.go

@@ -32,7 +32,7 @@ type App interface {
 
 	// Exports the state of the application for a genesis file.
 	ExportAppStateAndValidators(
-		forZeroHeight bool, jailAllowedAddrs []string,
+		forZeroHeight bool, jailAllowedAddrs []string, modulesToExport []string,
 	) (types.ExportedApp, error)
 
 	// All the registered module account addreses.

testing/simapp/utils.go

@@ -76,7 +76,7 @@ func CheckExportSimulation(
 ) error {
 	if config.ExportStatePath != "" {
 		fmt.Println("exporting app state...")
-		exported, err := app.ExportAppStateAndValidators(false, nil)
+		exported, err := app.ExportAppStateAndValidators(false, nil, nil)
 		if err != nil {
 			return err
 		}