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author | Ava Chow <github@achow101.com> | 2024-01-29 12:20:17 -0500 |
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committer | Ava Chow <github@achow101.com> | 2024-01-29 12:31:31 -0500 |
commit | 411ba32af21a56efa0a570b6aa8bf8f035410230 (patch) | |
tree | f758a2cc461b8ad0e0b28cdf70ed3c49a4783f2d /test/functional/rpc_net.py | |
parent | 87fcc93acc2c1f795ec6d3153f1e4e6aaa6a6862 (diff) | |
parent | bc9283c4415a932ec1eeb70ca2aa4399c80437b3 (diff) | |
download | bitcoin-411ba32af21a56efa0a570b6aa8bf8f035410230.tar.xz |
Merge bitcoin/bitcoin#24748: test/BIP324: functional tests for v2 P2P encryption
bc9283c4415a932ec1eeb70ca2aa4399c80437b3 [test] Add functional test to test early key response behaviour in BIP 324 (stratospher)
ffe6a56d75c0b47d0729e4e0b7225a827b43ad89 [test] Check whether v2 TestNode performs downgrading (stratospher)
ba737358a37438c18f0fba723eab10ccfd9aae9b [test] Add functional tests to test v2 P2P behaviour (stratospher)
4115cf995647d1a513caecb54a4ff3f51927aa8e [test] Ignore BIP324 decoy messages (stratospher)
8c054aa04d33b247744b3747cd5bf3005a013e90 [test] Allow inbound and outbound connections supporting v2 P2P protocol (stratospher)
382894c3acd2dbf3e4198814f547c75b6fb17706 [test] Reconnect using v1 P2P when v2 P2P terminates due to magic byte mismatch (stratospher)
a94e350ac0e5b65ef23a84b05fb10d1204c98c97 [test] Build v2 P2P messages (stratospher)
bb7bffed799dc5ad8b606768164fce46d4cbf9d0 [test] Use lock for sending P2P messages in test framework (stratospher)
5b91fb14aba7d7fe45c9ac364526815bec742356 [test] Read v2 P2P messages (stratospher)
05bddb20f5cc9036fd680500bde8ece70dbf0646 [test] Perform initial v2 handshake (stratospher)
a049d1bd08c8cdb3b693520f24f8a82572dcaab1 [test] Introduce EncryptedP2PState object in P2PConnection (stratospher)
b89fa59e715a185d9fa7fce089dad4273d3b1532 [test] Construct class to handle v2 P2P protocol functions (stratospher)
8d6c848a48530893ca40be5c1285541b3e7a94f3 [test] Move MAGIC_BYTES to messages.py (stratospher)
595ad4b16880ae1f23463ca9985381c8eae945d8 [test/crypto] Add ECDH (stratospher)
4487b8051797173c7ab432e75efa370afb03b529 [rpc/net] Allow v2 p2p support in addconnection (stratospher)
Pull request description:
This PR introduces support for v2 P2P encryption(BIP 324) in the existing functional test framework and adds functional tests for the same.
### commits overview
1. introduces a new class `EncryptedP2PState` to store the keys, functions for performing the initial v2 handshake and encryption/decryption.
3. this class is used by `P2PConnection` in inbound/outbound connections to perform the initial v2 handshake before the v1 version handshake. Only after the initial v2 handshake is performed do application layer P2P messages(version, verack etc..) get exchanged. (in a v2 connection)
- `v2_state` is the object of class `EncryptedP2PState` in `P2PConnection` used to store its keys, session-id etc.
- a node [advertising](https://github.com/stratospher/blogosphere/blob/main/integration_test_bip324.md#advertising-to-support-v2-p2p) support for v2 P2P is different from a node actually [supporting v2 P2P](https://github.com/stratospher/blogosphere/blob/main/integration_test_bip324.md#supporting-v2-p2p) (differ when false advertisement of services occur)
- introduce a boolean variable `supports_v2_p2p` in `P2PConnection` to denote if it supports v2 P2P.
- introduce a boolean variable `advertises_v2_p2p` to denote whether `P2PConnection` which mimics peer behaviour advertises V2 P2P support. Default option is `False`.
- In the test framework, you can create Inbound and Outbound connections to `TestNode`
1. During **Inbound Connections**, `P2PConnection` is the initiator [`TestNode` <--------- `P2PConnection`]
- Case 1:
- if the `TestNode` advertises/signals v2 P2P support (means `self.nodes[i]` set up with `"-v2transport=1"`), different behaviour will be exhibited based on whether:
1. `P2PConnection` supports v2 P2P
2. `P2PConnection` does not support v2 P2P
- In a real world scenario, the initiator node would intrinsically know if they support v2 P2P based on whatever code they choose to run. However, in the test scenario where we mimic peer behaviour, we have no way of knowing if `P2PConnection` should support v2 P2P or not. So `supports_v2_p2p` boolean variable is used as an option to enable support for v2 P2P in `P2PConnection`.
- Since the `TestNode` advertises v2 P2P support (using "-v2transport=1"), our initiator `P2PConnection` would send:
1. (if the `P2PConnection` supports v2 P2P) ellswift + garbage bytes to initiate the connection
2. (if the `P2PConnection` does not support v2 P2P) version message to initiate the connection
- Case 2:
- if the `TestNode` doesn't signal v2 P2P support; `P2PConnection` being the initiator would send version message to initiate a connection.
2. During **Outbound Connections** [TestNode --------> P2PConnection]
- initiator `TestNode` would send:
- (if the `P2PConnection` advertises v2 P2P) ellswift + garbage bytes to initiate the connection
- (if the `P2PConnection` advertises v2 P2P) version message to initiate the connection
- Suppose `P2PConnection` advertises v2 P2P support when it actually doesn't support v2 P2P (false advertisement scenario)
- `TestNode` sends ellswift + garbage bytes
- `P2PConnection` receives but can't process it and disconnects.
- `TestNode` then tries using v1 P2P and sends version message
- `P2PConnection` receives/processes this successfully and they communicate on v1 P2P
4. the encrypted P2P messages follow a different format - 3 byte length + 1-13 byte message_type + payload + 16 byte MAC
5. includes support for testing decoy messages and v2 connection downgrade(using false advertisement - when a v2 node makes an outbound connection to a node which doesn't support v2 but is advertised as v2 by some malicious
intermediary)
### run the tests
* functional test - `test/functional/p2p_v2_encrypted.py` `test/functional/p2p_v2_earlykeyresponse.py`
I'm also super grateful to @ dhruv for his really valuable feedback on this branch.
Also written a more elaborate explanation here - https://github.com/stratospher/blogosphere/blob/main/integration_test_bip324.md
ACKs for top commit:
naumenkogs:
ACK bc9283c4415a932ec1eeb70ca2aa4399c80437b3
mzumsande:
Code Review ACK bc9283c4415a932ec1eeb70ca2aa4399c80437b3
theStack:
Code-review ACK bc9283c4415a932ec1eeb70ca2aa4399c80437b3
glozow:
ACK bc9283c4415a932ec1eeb70ca2aa4399c80437b3
Tree-SHA512: 9b54ed27e925e1775e0e0d35e959cdbf2a9a1aab7bcf5d027e66f8b59780bdd0458a7a4311ddc7dd67657a4a2a2cd5034ead75524420d58a83f642a8304c9811
Diffstat (limited to 'test/functional/rpc_net.py')
-rwxr-xr-x | test/functional/rpc_net.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/test/functional/rpc_net.py b/test/functional/rpc_net.py index e1820b0f55..afb75ab208 100755 --- a/test/functional/rpc_net.py +++ b/test/functional/rpc_net.py @@ -244,7 +244,10 @@ class NetTest(BitcoinTestFramework): def test_service_flags(self): self.log.info("Test service flags") self.nodes[0].add_p2p_connection(P2PInterface(), services=(1 << 4) | (1 << 63)) - assert_equal(['UNKNOWN[2^4]', 'UNKNOWN[2^63]'], self.nodes[0].getpeerinfo()[-1]['servicesnames']) + if self.options.v2transport: + assert_equal(['UNKNOWN[2^4]', 'P2P_V2', 'UNKNOWN[2^63]'], self.nodes[0].getpeerinfo()[-1]['servicesnames']) + else: + assert_equal(['UNKNOWN[2^4]', 'UNKNOWN[2^63]'], self.nodes[0].getpeerinfo()[-1]['servicesnames']) self.nodes[0].disconnect_p2ps() def test_getnodeaddresses(self): |