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This way the log messages are consistent with "Creating SAM session..."
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Instead of providing our destination (private key) to the I2P proxy when
creating the session, ask it to generate one for us and do not save it
on disk.
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Outside of `Sock`, `Sock::Reset()` was used in just one place (in
`i2p.cpp`) which can use the assignment operator instead.
This simplifies the public `Sock` API by having one method less.
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mockable Sock::WaitMany()
6e68ccbefea6509c61fc4405a391a517c6057bb0 net: use Sock::WaitMany() instead of CConnman::SocketEvents() (Vasil Dimov)
ae263460bab9e6aa112dc99790c8ef06a56ec838 net: introduce Sock::WaitMany() (Vasil Dimov)
cc74459768063a923fb6220a4f420eaf211aee7b net: also wait for exceptional events in Sock::Wait() (Vasil Dimov)
Pull request description:
_This is a piece of #21878, chopped off to ease review._
`Sock::Wait()` waits for IO events on one socket. Introduce a similar `virtual` method `WaitMany()` that waits simultaneously for IO events on more than one socket.
Use `WaitMany()` instead of `CConnman::SocketEvents()` (and ditch the latter). Given that the former is a `virtual` method, it can be mocked by unit and fuzz tests. This will help to make bigger parts of `CConnman` testable (unit and fuzz).
ACKs for top commit:
laanwj:
Code review ACK 6e68ccbefea6509c61fc4405a391a517c6057bb0
jonatack:
re-ACK 6e68ccbefea6509c61fc4405a391a517c6057bb0 per `git range-diff e18fd47 6747729 6e68ccb`, and verified rebase to master and debug build
Tree-SHA512: 917fb6ad880d64d3af1ebb301c06fbd01afd8ff043f49e4055a088ebed6affb7ffe1dcf59292d822f10de5f323b6d52d557cb081dd7434634995f9148efcf08f
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This mimics closely `CConnman::SocketEvents()` and the underlying
`poll(2)`.
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Here we update only the log messages that manually print a category.
In upcoming commits, LogPrintCategory will likely be used in many
other cases, such as to replace `LogPrintf` where it makes sense.
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-BEGIN VERIFY SCRIPT-
s() { git grep -l "$1" src | xargs sed -i "s/$1/$2/g"; }
s 'BCLog::TOR, "tor: ' 'BCLog::TOR, "'
s 'BCLog::I2P, "I2P: ' 'BCLog::I2P, "'
s 'BCLog::NET, "net: ' 'BCLog::NET, "'
s 'BCLog::ZMQ, "zmq: ' 'BCLog::ZMQ, "'
s 'BCLog::PRUNE, "Prune: ' 'BCLog::PRUNE, "'
-END VERIFY SCRIPT-
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Base32/base64 are mechanisms for encoding binary data. That they'd
decode to a string is just bizarre. The fact that they'd do that
based on the type of input arguments even more so.
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-BEGIN VERIFY SCRIPT-
./contrib/devtools/copyright_header.py update ./
-END VERIFY SCRIPT-
Commits of previous years:
* 2020: fa0074e2d82928016a43ca408717154a1c70a4db
* 2019: aaaaad6ac95b402fe18d019d67897ced6b316ee0
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There is no change in behavior. This just helps prepare for the
transition from boost::filesystem to std::filesystem by avoiding calls
to methods which will be unsafe after the transaction to std::filesystem
to due lack of a boost::filesystem::path::imbue equivalent and inability
to set a predictable locale.
Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
Co-authored-by: Kiminuo <kiminuo@protonmail.com>
Co-authored-by: MarcoFalke <falke.marco@gmail.com>
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When connecting to an I2P host we don't specify destination port and it
is being forced to 0 by the SAM 3.1 proxy, so if we connect to the same
host on two different ports, that would be actually two connections to
the same service (listening on port 0).
Fixes https://github.com/bitcoin/bitcoin/issues/21389
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* When accepting an I2P connection, assume the peer has port 0 instead
of the default 8333 (for mainnet). It is not being sent to us, so we
must assume something.
* When deriving our own I2P listen CService use port 0 instead of the
default 8333 (for mainnet). So that we later advertise it to peers
with port 0.
In the I2P protocol SAM 3.1 and older (we use 3.1) ports are not used,
so they are irrelevant. However in SAM 3.2 and newer ports are used and
from the point of view of SAM 3.2, a peer using SAM 3.1 seems to have
specified port=0.
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Change the types of `i2p::Connection::sock` and
`i2p::sam::Session::m_control_sock` from `Sock` to
`std::unique_ptr<Sock>`.
Using pointers would allow us to sneak `FuzzedSock` instead of `Sock`
and have the methods of the former called.
After this change a test only needs to replace `CreateSock()` with
a function that returns `FuzzedSock`.
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Change `ConnectSocketDirectly()` to take a `Sock` argument instead of a
bare `SOCKET`. With this, use the `Sock`'s (possibly mocked) methods
`Connect()`, `Wait()` and `GetSockOpt()` instead of calling the OS
functions directly.
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Put a limit on the amount of data `Sock::RecvUntilTerminator()` can read
if no terminator is received.
In the case of I2P this avoids a runaway (or malicious) I2P proxy
sending us tons of data without a terminator before a timeout is
triggered.
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Implement the following commands from the I2P SAM protocol:
* HELLO: needed for all of the remaining ones
* DEST GENERATE: to generate our private key and destination
* NAMING LOOKUP: to convert .i2p addresses to destinations
* SESSION CREATE: needed for STREAM CONNECT and STREAM ACCEPT
* STREAM CONNECT: to make outgoing connections
* STREAM ACCEPT: to accept incoming connections
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