Add in-place and genesis migrations (#205)

* add in-place migrations

Prunes solomachines and expired tendermint consensus states via an x/upgrade

* update migrations

fix iteration bug
remove solo machine connections
remove solo machine channels

* migrate solomachine from v1 to v2 during in place migration

Regenerate v1 solo machine definition in 02-client legacy
Migrate from v1 to v2 solo machine client state
Prune v1 solo machine consensus states

* fix build

* add genesis migration

* code cleanup

* add store migration test for expired tendermint consensus states

* finish adding in place migration store tests

* add genesis test for solo machines

* fix genesis migration bug, add tendermint tests

* test fix, changelog, migration docs

* Apply suggestions from code review

* Update docs/migrations/ibc-migration-043.md

* apply Aditya's review suggestions

* fix tests

* add genesis json unmarshal test

Test that the legacy solo machines can be successfully unmarshalled.
This requires registering an implementation for the legacy solo machine. An implemenation which panics has been added.
This implementation should only be registered against a clientCtx during a migrate cli cmd. The implementation is only briefly used in order to decode the previous solo machine set in genesis.

* add migration support for max expected time per block

* fix docs

* fix bug found by Aditya

The genesis client metadata was being set independently for each unexpired height. It needed to be moved outside the unexpired for loop

* remove unnecessary code

* apply Aditya review suggestions, fix bug

There was a bug in adding consensus metadata since it relied on the iteration key not yet set.
This is fixed by using traditional iteration using the consensus state key, setting metadata for all consensus states, and then pruning expired consensus states. The store test has been updated to set create two tendermint clients

Co-authored-by: Aditya <adityasripal@gmail.com>

Author: colin-axner

CHANGELOG.md

@@ -72,6 +72,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ### Improvements
 
+* (core/02-client) [\#205](https://github.com/cosmos/ibc-go/pull/205) Add in-place and genesis migrations from SDK v0.42.0 to ibc-go v1.0.0. Solo machine protobuf defintions are migrated from v1 to v2. All solo machine consensus states are pruned. All expired tendermint consensus states are pruned.
 * (modules/core) [\#184](https://github.com/cosmos/ibc-go/pull/184) Improve error messages. Uses unique error codes to indicate already relayed packets.
 * (07-tendermint) [\#182](https://github.com/cosmos/ibc-go/pull/182) Remove duplicate checks in upgrade logic.
 * (modules/core/04-channel) [\#7949](https://github.com/cosmos/cosmos-sdk/issues/7949) Standardized channel `Acknowledgement` moved to its own file. Codec registration redundancy removed.

docs/ibc/proto-docs.md

@@ -195,6 +195,26 @@
 - [ibc/lightclients/localhost/v1/localhost.proto](#ibc/lightclients/localhost/v1/localhost.proto)
     - [ClientState](#ibc.lightclients.localhost.v1.ClientState)
 
+- [ibc/lightclients/solomachine/v1/solomachine.proto](#ibc/lightclients/solomachine/v1/solomachine.proto)
+    - [ChannelStateData](#ibc.lightclients.solomachine.v1.ChannelStateData)
+    - [ClientState](#ibc.lightclients.solomachine.v1.ClientState)
+    - [ClientStateData](#ibc.lightclients.solomachine.v1.ClientStateData)
+    - [ConnectionStateData](#ibc.lightclients.solomachine.v1.ConnectionStateData)
+    - [ConsensusState](#ibc.lightclients.solomachine.v1.ConsensusState)
+    - [ConsensusStateData](#ibc.lightclients.solomachine.v1.ConsensusStateData)
+    - [Header](#ibc.lightclients.solomachine.v1.Header)
+    - [HeaderData](#ibc.lightclients.solomachine.v1.HeaderData)
+    - [Misbehaviour](#ibc.lightclients.solomachine.v1.Misbehaviour)
+    - [NextSequenceRecvData](#ibc.lightclients.solomachine.v1.NextSequenceRecvData)
+    - [PacketAcknowledgementData](#ibc.lightclients.solomachine.v1.PacketAcknowledgementData)
+    - [PacketCommitmentData](#ibc.lightclients.solomachine.v1.PacketCommitmentData)
+    - [PacketReceiptAbsenceData](#ibc.lightclients.solomachine.v1.PacketReceiptAbsenceData)
+    - [SignBytes](#ibc.lightclients.solomachine.v1.SignBytes)
+    - [SignatureAndData](#ibc.lightclients.solomachine.v1.SignatureAndData)
+    - [TimestampedSignatureData](#ibc.lightclients.solomachine.v1.TimestampedSignatureData)
+  
+    - [DataType](#ibc.lightclients.solomachine.v1.DataType)
+  
 - [ibc/lightclients/solomachine/v2/solomachine.proto](#ibc/lightclients/solomachine/v2/solomachine.proto)
     - [ChannelStateData](#ibc.lightclients.solomachine.v2.ChannelStateData)
     - [ClientState](#ibc.lightclients.solomachine.v2.ClientState)
@@ -2405,7 +2425,7 @@ Params defines the set of Connection parameters.
 
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
-| `max_expected_time_per_block` | [uint64](#uint64) |  | maximum expected time per block, used to enforce block delay. This parameter should reflect the largest amount of time that the chain might reasonably take to produce the next block under normal operating conditions. A safe choice is 3-5x the expected time per block. |
+| `max_expected_time_per_block` | [uint64](#uint64) |  | maximum expected time per block (in nanoseconds), used to enforce block delay. This parameter should reflect the largest amount of time that the chain might reasonably take to produce the next block under normal operating conditions. A safe choice is 3-5x the expected time per block. |
 
 
 
@@ -2919,6 +2939,324 @@ access to keys outside the client prefix.
 
 
 
+<a name="ibc/lightclients/solomachine/v1/solomachine.proto"></a>
+<p align="right"><a href="#top">Top</a></p>
+
+## ibc/lightclients/solomachine/v1/solomachine.proto
+
+
+
+<a name="ibc.lightclients.solomachine.v1.ChannelStateData"></a>
+
+### ChannelStateData
+ChannelStateData returns the SignBytes data for channel state
+verification.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `path` | [bytes](#bytes) |  |  |
+| `channel` | [ibc.core.channel.v1.Channel](#ibc.core.channel.v1.Channel) |  |  |
+
+
+
+
+
+
+<a name="ibc.lightclients.solomachine.v1.ClientState"></a>
+
+### ClientState
+ClientState defines a solo machine client that tracks the current consensus
+state and if the client is frozen.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `sequence` | [uint64](#uint64) |  | latest sequence of the client state |
+| `frozen_sequence` | [uint64](#uint64) |  | frozen sequence of the solo machine |
+| `consensus_state` | [ConsensusState](#ibc.lightclients.solomachine.v1.ConsensusState) |  |  |
+| `allow_update_after_proposal` | [bool](#bool) |  | when set to true, will allow governance to update a solo machine client. The client will be unfrozen if it is frozen. |
+
+
+
+
+
+
+<a name="ibc.lightclients.solomachine.v1.ClientStateData"></a>
+
+### ClientStateData
+ClientStateData returns the SignBytes data for client state verification.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `path` | [bytes](#bytes) |  |  |
+| `client_state` | [google.protobuf.Any](#google.protobuf.Any) |  |  |
+
+
+
+
+
+
+<a name="ibc.lightclients.solomachine.v1.ConnectionStateData"></a>
+
+### ConnectionStateData
+ConnectionStateData returns the SignBytes data for connection state
+verification.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `path` | [bytes](#bytes) |  |  |
+| `connection` | [ibc.core.connection.v1.ConnectionEnd](#ibc.core.connection.v1.ConnectionEnd) |  |  |
+
+
+
+
+
+
+<a name="ibc.lightclients.solomachine.v1.ConsensusState"></a>
+
+### ConsensusState
+ConsensusState defines a solo machine consensus state. The sequence of a
+consensus state is contained in the "height" key used in storing the
+consensus state.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `public_key` | [google.protobuf.Any](#google.protobuf.Any) |  | public key of the solo machine |
+| `diversifier` | [string](#string) |  | diversifier allows the same public key to be re-used across different solo machine clients (potentially on different chains) without being considered misbehaviour. |
+| `timestamp` | [uint64](#uint64) |  |  |
+
+
+
+
+
+
+<a name="ibc.lightclients.solomachine.v1.ConsensusStateData"></a>
+
+### ConsensusStateData
+ConsensusStateData returns the SignBytes data for consensus state
+verification.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `path` | [bytes](#bytes) |  |  |
+| `consensus_state` | [google.protobuf.Any](#google.protobuf.Any) |  |  |
+
+
+
+
+
+
+<a name="ibc.lightclients.solomachine.v1.Header"></a>
+
+### Header
+Header defines a solo machine consensus header
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `sequence` | [uint64](#uint64) |  | sequence to update solo machine public key at |
+| `timestamp` | [uint64](#uint64) |  |  |
+| `signature` | [bytes](#bytes) |  |  |
+| `new_public_key` | [google.protobuf.Any](#google.protobuf.Any) |  |  |
+| `new_diversifier` | [string](#string) |  |  |
+
+
+
+
+
+
+<a name="ibc.lightclients.solomachine.v1.HeaderData"></a>
+
+### HeaderData
+HeaderData returns the SignBytes data for update verification.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `new_pub_key` | [google.protobuf.Any](#google.protobuf.Any) |  | header public key |
+| `new_diversifier` | [string](#string) |  | header diversifier |
+
+
+
+
+
+
+<a name="ibc.lightclients.solomachine.v1.Misbehaviour"></a>
+
+### Misbehaviour
+Misbehaviour defines misbehaviour for a solo machine which consists
+of a sequence and two signatures over different messages at that sequence.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `client_id` | [string](#string) |  |  |
+| `sequence` | [uint64](#uint64) |  |  |
+| `signature_one` | [SignatureAndData](#ibc.lightclients.solomachine.v1.SignatureAndData) |  |  |
+| `signature_two` | [SignatureAndData](#ibc.lightclients.solomachine.v1.SignatureAndData) |  |  |
+
+
+
+
+
+
+<a name="ibc.lightclients.solomachine.v1.NextSequenceRecvData"></a>
+
+### NextSequenceRecvData
+NextSequenceRecvData returns the SignBytes data for verification of the next
+sequence to be received.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `path` | [bytes](#bytes) |  |  |
+| `next_seq_recv` | [uint64](#uint64) |  |  |
+
+
+
+
+
+
+<a name="ibc.lightclients.solomachine.v1.PacketAcknowledgementData"></a>
+
+### PacketAcknowledgementData
+PacketAcknowledgementData returns the SignBytes data for acknowledgement
+verification.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `path` | [bytes](#bytes) |  |  |
+| `acknowledgement` | [bytes](#bytes) |  |  |
+
+
+
+
+
+
+<a name="ibc.lightclients.solomachine.v1.PacketCommitmentData"></a>
+
+### PacketCommitmentData
+PacketCommitmentData returns the SignBytes data for packet commitment
+verification.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `path` | [bytes](#bytes) |  |  |
+| `commitment` | [bytes](#bytes) |  |  |
+
+
+
+
+
+
+<a name="ibc.lightclients.solomachine.v1.PacketReceiptAbsenceData"></a>
+
+### PacketReceiptAbsenceData
+PacketReceiptAbsenceData returns the SignBytes data for
+packet receipt absence verification.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `path` | [bytes](#bytes) |  |  |
+
+
+
+
+
+
+<a name="ibc.lightclients.solomachine.v1.SignBytes"></a>
+
+### SignBytes
+SignBytes defines the signed bytes used for signature verification.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `sequence` | [uint64](#uint64) |  |  |
+| `timestamp` | [uint64](#uint64) |  |  |
+| `diversifier` | [string](#string) |  |  |
+| `data_type` | [DataType](#ibc.lightclients.solomachine.v1.DataType) |  | type of the data used |
+| `data` | [bytes](#bytes) |  | marshaled data |
+
+
+
+
+
+
+<a name="ibc.lightclients.solomachine.v1.SignatureAndData"></a>
+
+### SignatureAndData
+SignatureAndData contains a signature and the data signed over to create that
+signature.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `signature` | [bytes](#bytes) |  |  |
+| `data_type` | [DataType](#ibc.lightclients.solomachine.v1.DataType) |  |  |
+| `data` | [bytes](#bytes) |  |  |
+| `timestamp` | [uint64](#uint64) |  |  |
+
+
+
+
+
+
+<a name="ibc.lightclients.solomachine.v1.TimestampedSignatureData"></a>
+
+### TimestampedSignatureData
+TimestampedSignatureData contains the signature data and the timestamp of the
+signature.
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `signature_data` | [bytes](#bytes) |  |  |
+| `timestamp` | [uint64](#uint64) |  |  |
+
+
+
+
+
+ <!-- end messages -->
+
+
+<a name="ibc.lightclients.solomachine.v1.DataType"></a>
+
+### DataType
+DataType defines the type of solo machine proof being created. This is done
+to preserve uniqueness of different data sign byte encodings.
+
+| Name | Number | Description |
+| ---- | ------ | ----------- |
+| DATA_TYPE_UNINITIALIZED_UNSPECIFIED | 0 | Default State |
+| DATA_TYPE_CLIENT_STATE | 1 | Data type for client state verification |
+| DATA_TYPE_CONSENSUS_STATE | 2 | Data type for consensus state verification |
+| DATA_TYPE_CONNECTION_STATE | 3 | Data type for connection state verification |
+| DATA_TYPE_CHANNEL_STATE | 4 | Data type for channel state verification |
+| DATA_TYPE_PACKET_COMMITMENT | 5 | Data type for packet commitment verification |
+| DATA_TYPE_PACKET_ACKNOWLEDGEMENT | 6 | Data type for packet acknowledgement verification |
+| DATA_TYPE_PACKET_RECEIPT_ABSENCE | 7 | Data type for packet receipt absence verification |
+| DATA_TYPE_NEXT_SEQUENCE_RECV | 8 | Data type for next sequence recv verification |
+| DATA_TYPE_HEADER | 9 | Data type for header verification |
+
+
+ <!-- end enums -->
+
+ <!-- end HasExtensions -->
+
+ <!-- end services -->
+
+
+
 <a name="ibc/lightclients/solomachine/v2/solomachine.proto"></a>
 <p align="right"><a href="#top">Top</a></p>