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Ava Chow 0ed2c130e7
Merge bitcoin/bitcoin#27375: net: support unix domain sockets for -proxy and -onion 
567cec9a05 doc: add release notes and help text for unix sockets (Matthew Zipkin)
bfe5192891 test: cover UNIX sockets in feature_proxy.py (Matthew Zipkin)
c65c0d0163 init: allow UNIX socket path for -proxy and -onion (Matthew Zipkin)
c3bd43142e gui: accomodate unix socket Proxy in updateDefaultProxyNets() (Matthew Zipkin)
a88bf9dedd i2p: construct Session with Proxy instead of CService (Matthew Zipkin)
d9318a37ec net: split ConnectToSocket() from ConnectDirectly() for unix sockets (Matthew Zipkin)
ac2ecf3182 proxy: rename randomize_credentials to m_randomize_credentials (Matthew Zipkin)
a89c3f59dc netbase: extend Proxy class to wrap UNIX socket as well as TCP (Matthew Zipkin)
3a7d6548ef net: move CreateSock() calls from ConnectNode() to netbase methods (Matthew Zipkin)
74f568cb6f netbase: allow CreateSock() to create UNIX sockets if supported (Matthew Zipkin)
bae86c8d31 netbase: refactor CreateSock() to accept sa_family_t (Matthew Zipkin)
adb3a3e51d configure: test for unix domain sockets (Matthew Zipkin)

Pull request description:

  Closes https://github.com/bitcoin/bitcoin/issues/27252

  UNIX domain sockets are a mechanism for inter-process communication that are faster than local TCP ports (because there is no need for TCP overhead) and potentially more secure because access is managed by the filesystem instead of serving an open port on the system.

  There has been work on [unix domain sockets before](https://github.com/bitcoin/bitcoin/pull/9979) but for now I just wanted to start on this single use-case which is enabling unix sockets from the client side, specifically connecting to a local Tor proxy (Tor can listen on unix sockets and even enforces strict curent-user-only access permission before binding) configured by `-onion=` or `-proxy=`

  I copied the prefix `unix:` usage from Tor. With this patch built locally you can test with your own filesystem path (example):

  `tor --SocksPort unix:/Users/matthewzipkin/torsocket/x`

  `bitcoind -proxy=unix:/Users/matthewzipkin/torsocket/x`

  Prep work for this feature includes:
  - Moving where and how we create `sockaddr` and `Sock` to accommodate `AF_UNIX` without disturbing `CService`
  - Expanding `Proxy` class to represent either a `CService` or a UNIX socket (by its file path)

  Future work:
  - Enable UNIX sockets for ZMQ (https://github.com/bitcoin/bitcoin/pull/27679)
  - Enable UNIX sockets for I2P SAM proxy (some code is included in this PR but not tested or exposed to user options yet)
  - Enable UNIX sockets on windows where supported
  - Update Network Proxies dialog in GUI to support UNIX sockets

ACKs for top commit:
  Sjors:
    re-ACK 567cec9a05
  tdb3:
    re ACK for 567cec9a05.
  achow101:
    ACK 567cec9a05
  vasild:
    ACK 567cec9a05

Tree-SHA512: de81860e56d5de83217a18df4c35297732b4ad491e293a0153d2d02a0bde1d022700a1131279b187ef219651487537354b9d06d10fde56225500c7e257df92c1
2024-03-13 06:53:07 -04:00
..
design doc: correct function name in AssumeUTXO design docs 2024-02-29 20:50:50 +01:00
man scripted-diff: Fix typo in stub manual pages 2021-01-12 16:46:55 +01:00
policy [doc] fix docs and comments from v3 2024-02-12 14:27:25 +00:00
release-notes doc: Missing additions to 26.0 release notes 2023-12-07 15:35:44 +00:00
.gitignore Ignore Doxyfile generated from Doxyfile.in template. 2017-04-07 16:28:12 +02:00
assets-attribution.md [doc] Merge doc/assets-attribution.md into contrib/debian/copyright 2015-09-18 18:14:42 +02:00
benchmarking.md doc: update doc/benchmarking.md 2021-06-24 11:15:29 +02:00
bips.md doc: document that BIP324 on by default for v27.0 2024-02-19 15:37:59 +00:00
bitcoin-conf.md Security config warning 2022-08-19 23:18:13 -04:00
bitcoin_logo_doxygen.png Lossless image optimization 2013-12-02 10:10:22 +01:00
build-android.md build, qt: Use Android NDK r23 LTS 2021-12-05 03:00:02 +02:00
build-freebsd.md Merge bitcoin/bitcoin#26773: doc: FreeBSD build doc updates to reflect removal of install_db4.sh 2023-02-16 14:50:00 +00:00
build-netbsd.md doc: update for NetBSD 9.2, add GUI Build Instructions 2022-07-06 21:27:05 -04:00
build-openbsd.md doc: Update OpenBSD build docs to 7.4 2024-02-26 16:05:47 +00:00
build-osx.md doc: remove mention of missing bdb being a configure error 2023-11-15 13:34:50 +00:00
build-unix.md doc: remove Fedora libdb4-*-devel install docs 2023-08-07 14:48:35 +02:00
build-windows.md doc: remove mingw-w64 install for "older" systems 2023-11-17 10:57:51 +00:00
cjdns.md doc: update getnodeaddresses for CJDNS, I2P and Tor and rm link 2023-06-01 15:52:51 +02:00
dependencies.md build: Bump clang minimum supported version to 14 2024-01-09 14:17:55 +01:00
descriptors.md doc: correct deriveaddresses RPC name 2022-10-30 18:11:45 +00:00
developer-notes.md doc: Wrap flags with code in developer-notes.md 2024-03-08 15:55:37 +07:00
dnsseed-policy.md Correct spelling mistakes in doc folder 2015-10-18 06:25:43 +10:00
Doxyfile.in Generate doxygen documentation for test sources 2021-05-19 22:08:18 -07:00
external-signer.md Move external signer out of wallet module 2021-04-08 17:56:00 +02:00
files.md Ignore banlist.dat 2021-07-30 11:21:51 +02:00
fuzzing.md doc: remove references to disable-asm option now that it's gone 2024-02-29 19:10:31 +00:00
guix.md docs: Point to contrib/guix/README.md in doc/guix.md 2021-01-08 11:40:01 -05:00
i2p.md doc: simplify the router options in doc/i2p.md 2023-06-27 10:26:57 -06:00
init.md Remove -sysperms option 2023-02-05 08:09:16 +00:00
JSON-RPC-interface.md Update JSON-RPC-interface.md 2023-08-17 13:46:18 +01:00
managing-wallets.md Change dots to an ellipsis and fix capitalization 2023-01-12 11:15:02 -05:00
multiprocess.md doc: Add multiprocess design doc 2023-12-22 16:23:33 -05:00
multisig-tutorial.md doc: update multisig-tutorial.md to default wallet type 2022-03-10 12:50:34 +01:00
offline-signing-tutorial.md doc: update signet faucet link in offline-signing-tutorial.md 2024-03-04 00:14:29 +07:00
p2p-bad-ports.md init, doc: improve -onlynet help and tor/i2p documentation 2022-03-03 16:14:01 +01:00
productivity.md doc: add distcc to productivity notes 2022-06-13 16:13:11 +02:00
psbt.md doc: M-of-N multisig using descriptor wallets and PSBTs, as well as a signing flow 2021-08-16 10:43:07 +05:00
README.md Add offline signing tutorial 2023-10-27 12:32:48 +03:00
README_doxygen.md doc: Improve doxygen readme navigation section 2019-09-23 19:22:06 -04:00
README_windows.txt doc: Remove version numbers from READMEs 2017-04-05 09:40:48 +02:00
reduce-memory.md doc: Be vague instead of wrong about MALLOC_ARENA_MAX 2023-09-20 17:12:24 +00:00
reduce-traffic.md doc: update/clarify max outbound connection count 2023-12-11 20:05:25 +01:00
release-notes-27114.md docs: add release notes for #27114 2024-02-28 10:05:56 -03:00
release-notes-27375.md doc: add release notes and help text for unix sockets 2024-03-01 14:47:29 -05:00
release-notes-empty-template.md doc: add minimum required Linux Kernel to release-notes 2023-12-07 13:53:41 +00:00
release-process.md doc: Add link to needs-release-notes label 2023-12-07 15:56:39 +01:00
REST-interface.md Merge bitcoin/bitcoin#26207: rest: add verbose and mempool_sequence query params for mempool/contents 2023-03-15 19:39:30 -04:00
shared-libraries.md libconsensus: deprecate 2024-01-30 23:19:02 +00:00
tor.md Merge bitcoin/bitcoin#27719: doc: remove Tor link & generalize onion getnodeaddresses RPC 2023-06-01 15:24:23 +01:00
tracing.md Use int32_t type for most transaction size/weight values 2023-06-12 19:47:19 +01:00
translation_process.md doc: Update translation_process.md 2024-02-14 21:39:39 -03:00
translation_strings_policy.md doc: Do not translate technical or extremely rare errors 2020-05-05 04:46:08 +03:00
zmq.md validationinterface: only send zmq notifications for active 2023-09-30 06:38:47 -04:00

README.md

Bitcoin Core

Setup

Bitcoin Core is the original Bitcoin client and it builds the backbone of the network. It downloads and, by default, stores the entire history of Bitcoin transactions, which requires a few hundred gigabytes of disk space. Depending on the speed of your computer and network connection, the synchronization process can take anywhere from a few hours to a day or more.

To download Bitcoin Core, visit bitcoincore.org.

Running

The following are some helpful notes on how to run Bitcoin Core on your native platform.

Unix

Unpack the files into a directory and run:

  • bin/bitcoin-qt (GUI) or
  • bin/bitcoind (headless)

Windows

Unpack the files into a directory, and then run bitcoin-qt.exe.

macOS

Drag Bitcoin Core to your applications folder, and then run Bitcoin Core.

Need Help?

Building

The following are developer notes on how to build Bitcoin Core on your native platform. They are not complete guides, but include notes on the necessary libraries, compile flags, etc.

Development

The Bitcoin repo's root README contains relevant information on the development process and automated testing.

Resources

Miscellaneous

License

Distributed under the MIT software license.