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author | W. J. van der Laan <laanwj@protonmail.com> | 2021-09-09 15:25:59 +0200 |
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committer | W. J. van der Laan <laanwj@protonmail.com> | 2021-09-09 15:37:13 +0200 |
commit | b05d3e76e7c72387b302cc21d420f31f384c8b10 (patch) | |
tree | 45e3ee5f6dddb00e6dbf69a3a54c9c43da380760 /src | |
parent | a5d00d4baff27b4185ea086af571142af17c32e4 (diff) | |
parent | e6998838e5548991274ad2bf1697d862905b8837 (diff) | |
download | bitcoin-b05d3e76e7c72387b302cc21d420f31f384c8b10.tar.xz |
Merge bitcoin/bitcoin#22079: zmq: Add support to listen on IPv6 addresses
e6998838e5548991274ad2bf1697d862905b8837 doc: Add IPv6 address to zmq example (nthumann)
8abe5703a9bb76bc92204a6f69775790e96208fa test: Add IPv6 test to zmq (nthumann)
ded449b726e47f35798ef1c4b1e59123a0dc2b61 zmq: Enable IPv6 on listening socket (nthumann)
Pull request description:
This PR adds support for listening on IPv6 addresses with bitcoinds ZMQ interface, just like the RPC server.
Currently, it is not possible to specify an IPv6 address, as the `ZMQ_IPV6` [socket option](http://api.zeromq.org/master:zmq-setsockopt#toc27) is not set and therefore the ZMQ initialization fails, if one does so. The absence of this option has also been noted [here](https://github.com/bitcoin/bitcoin/issues/15198#issuecomment-617378512).
With this PR one can e.g. set `-zmqpubhashblock=tcp://[::1]:28333` to listen on the IPv6 loopback address.
ACKs for top commit:
laanwj:
Code review ACK e6998838e5548991274ad2bf1697d862905b8837
theStack:
Tested ACK e6998838e5548991274ad2bf1697d862905b8837 🌱
Tree-SHA512: 43c3043d8d5c79794d475926259c1be975b694db4fcc1f7750a9a28e242f0fa1b531735a63ea5777498003aa5834f6243f39742d0f3941f2f37593d0c7890700
Diffstat (limited to 'src')
-rw-r--r-- | src/zmq/zmqpublishnotifier.cpp | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/zmq/zmqpublishnotifier.cpp b/src/zmq/zmqpublishnotifier.cpp index 6ae866cc07..56f4c98317 100644 --- a/src/zmq/zmqpublishnotifier.cpp +++ b/src/zmq/zmqpublishnotifier.cpp @@ -6,6 +6,7 @@ #include <chain.h> #include <chainparams.h> +#include <netbase.h> #include <node/blockstorage.h> #include <rpc/server.h> #include <streams.h> @@ -73,6 +74,20 @@ static int zmq_send_multipart(void *sock, const void* data, size_t size, ...) return 0; } +static bool IsZMQAddressIPV6(const std::string &zmq_address) +{ + const std::string tcp_prefix = "tcp://"; + const size_t tcp_index = zmq_address.rfind(tcp_prefix); + const size_t colon_index = zmq_address.rfind(":"); + if (tcp_index == 0 && colon_index != std::string::npos) { + const std::string ip = zmq_address.substr(tcp_prefix.length(), colon_index - tcp_prefix.length()); + CNetAddr addr; + LookupHost(ip, addr, false); + if (addr.IsIPv6()) return true; + } + return false; +} + bool CZMQAbstractPublishNotifier::Initialize(void *pcontext) { assert(!psocket); @@ -107,6 +122,15 @@ bool CZMQAbstractPublishNotifier::Initialize(void *pcontext) return false; } + // On some systems (e.g. OpenBSD) the ZMQ_IPV6 must not be enabled, if the address to bind isn't IPv6 + const int enable_ipv6 { IsZMQAddressIPV6(address) ? 1 : 0}; + rc = zmq_setsockopt(psocket, ZMQ_IPV6, &enable_ipv6, sizeof(enable_ipv6)); + if (rc != 0) { + zmqError("Failed to set ZMQ_IPV6"); + zmq_close(psocket); + return false; + } + rc = zmq_bind(psocket, address.c_str()); if (rc != 0) { |