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Merge bitcoin/bitcoin#30043: net: Replace libnatpmp with built-in PCP+NATPMP implementation

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5c7cacf649 ci: Remove natpmp build option and libnatpmp dependency (laanwj)
7e7ec984da doc: Remove mention of natpmp build options (laanwj)
061c3e32a2 depends: Drop natpmp and associated option from depends (laanwj)
20a18bf6aa build: Drop libnatpmp from build system (laanwj)
7b04709862 qt: Changes for built-in PCP+NAT-PMP (laanwj)
52f8ef66c6 net: Replace libnatpmp with built-in NATPMP+PCP implementation in mapport (laanwj)
97c97177cd net: Add PCP and NATPMP implementation (laanwj)
d72df63d16 net: Use GetLocalAddresses in Discover (laanwj)
e02030432b net: Add netif utility (laanwj)
754e425438 crypto: Add missing WriteBE16 function (laanwj)

Pull request description:

  Continues #30005. Closes #17012..

  This PR adds PCP (Port Control Protocol) from [RFC6887](https://datatracker.ietf.org/doc/html/rfc6887).  This adds, in addition to the existing IPv4 port mapping (which now uses PCP, with fallback to NAT-PMP), support for IPv6 pinholing-that is, opening a port on the firewall to make it reachable.

  PCP, like NAT-PMP is a simple UDP-based protocol, and the implementation is self-contained, so this gets rid of lthe libnatpnp dependency without adding a new one. It should otherwise be a drop-in replacement. NAT-PMP fallback is implemented so this will not make router support worse.

  For now it is disabled by default, though in the future (not in this PR) we could consider enable it by default to increase the number of connectable nodes without adding significant attack surface.

  To test:
  ```bash
  bitcoind -regtest -natpmp=1 -debug=net
  ```

  (most of the changes in this PR are, ironically, removing the libnatpmp dependency and associated build system and build docs)

  ## TODO

  - [x] Default gateway discovery on Linux / FreeBSD
  - [x] Default gateway discovery on Windows
  - [x] Default gateway discovery on MacOS
  - [x] Either solve FreeBSD compile issue (probably upstream issue) or remove FreeBSD support

  ## Things to consider for follow-up PRs

  - https://github.com/bitcoin/bitcoin/pull/30043#discussion_r1658764974 avoid unreachable nets (not given to -onlynet=)

  - https://github.com/bitcoin/bitcoin/pull/30043#discussion_r1658949236 could announce an addr:port where we do not listen (no -bind)

  - https://github.com/bitcoin/bitcoin/pull/30043#discussion_r1684368824 could announce the wrong port because it uses GetListenPort()

  - https://github.com/bitcoin/bitcoin/pull/30043#discussion_r1679709347 if we requested one port but another was assigned, then which one to use in the renewal?

  - https://github.com/bitcoin/bitcoin/pull/30043#discussion_r1772017020 Use `GetAdapterAddresses` to discover local addresses for Windows

ACKs for top commit:
  Sjors:
    ACK 5c7cacf649
  achow101:
    ACK 5c7cacf649
  vasild:
    ACK 5c7cacf649

Tree-SHA512: e35b69e56d5f5449a3d48a799f9b7b65107c65eeb3e245c2c1e9d42221e469ca5ead90afae423160601cd664dd553a51c859e04f4492f335b064aae3bf23e3bc
This commit is contained in:
Ava Chow
2024-09-30 16:27:47 -04:00
parent f3c74c4a7e 5c7cacf649
commit c33eb2360e
38 changed files with 1055 additions and 289 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
ci/test/00_setup_env_mac_native.sh
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@@ -11,7 +11,7 @@ export LC_ALL=C.UTF-8
export PIP_PACKAGES="--break-system-packages zmq"
export GOAL="install"
export CMAKE_GENERATOR="Ninja"
export BITCOIN_CONFIG="-DBUILD_GUI=ON -DWITH_ZMQ=ON -DWITH_MINIUPNPC=ON -DWITH_NATPMP=ON -DREDUCE_EXPORTS=ON"
export BITCOIN_CONFIG="-DBUILD_GUI=ON -DWITH_ZMQ=ON -DWITH_MINIUPNPC=ON -DREDUCE_EXPORTS=ON"
export CI_OS_NAME="macos"
export NO_DEPENDS=1
export OSX_SDK=""

2
ci/test/00_setup_env_native_asan.sh
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@@ -19,7 +19,7 @@ else
fi
export CONTAINER_NAME=ci_native_asan
export PACKAGES="systemtap-sdt-dev clang-18 llvm-18 libclang-rt-18-dev python3-zmq qtbase5-dev qttools5-dev qttools5-dev-tools libevent-dev libboost-dev libdb5.3++-dev libminiupnpc-dev libnatpmp-dev libzmq3-dev libqrencode-dev libsqlite3-dev ${BPFCC_PACKAGE}"
export PACKAGES="systemtap-sdt-dev clang-18 llvm-18 libclang-rt-18-dev python3-zmq qtbase5-dev qttools5-dev qttools5-dev-tools libevent-dev libboost-dev libdb5.3++-dev libminiupnpc-dev libzmq3-dev libqrencode-dev libsqlite3-dev ${BPFCC_PACKAGE}"
export NO_DEPENDS=1
export GOAL="install"
export BITCOIN_CONFIG="\

2
ci/test/00_setup_env_native_previous_releases.sh
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@@ -10,7 +10,7 @@ export CONTAINER_NAME=ci_native_previous_releases
export CI_IMAGE_NAME_TAG="docker.io/ubuntu:22.04"
# Use minimum supported python3.9 (or best effort 3.10) and gcc-11, see doc/dependencies.md
export PACKAGES="gcc-11 g++-11 python3-zmq"
export DEP_OPTS="NO_UPNP=1 NO_NATPMP=1 DEBUG=1 CC=gcc-11 CXX=g++-11"
export DEP_OPTS="NO_UPNP=1 DEBUG=1 CC=gcc-11 CXX=g++-11"
export TEST_RUNNER_EXTRA="--previous-releases --coverage --extended --exclude feature_dbcrash" # Run extended tests so that coverage does not fail, but exclude the very slow dbcrash
export RUN_UNIT_TESTS_SEQUENTIAL="true"
export RUN_UNIT_TESTS="false"

4
ci/test/00_setup_env_native_tidy.sh
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@@ -9,7 +9,7 @@ export LC_ALL=C.UTF-8
export CI_IMAGE_NAME_TAG="docker.io/ubuntu:24.04"
export CONTAINER_NAME=ci_native_tidy
export TIDY_LLVM_V="18"
export PACKAGES="clang-${TIDY_LLVM_V} libclang-${TIDY_LLVM_V}-dev llvm-${TIDY_LLVM_V}-dev libomp-${TIDY_LLVM_V}-dev clang-tidy-${TIDY_LLVM_V} jq libevent-dev libboost-dev libminiupnpc-dev libnatpmp-dev libzmq3-dev systemtap-sdt-dev qtbase5-dev qttools5-dev qttools5-dev-tools libqrencode-dev libsqlite3-dev libdb++-dev"
export PACKAGES="clang-${TIDY_LLVM_V} libclang-${TIDY_LLVM_V}-dev llvm-${TIDY_LLVM_V}-dev libomp-${TIDY_LLVM_V}-dev clang-tidy-${TIDY_LLVM_V} jq libevent-dev libboost-dev libminiupnpc-dev libzmq3-dev systemtap-sdt-dev qtbase5-dev qttools5-dev qttools5-dev-tools libqrencode-dev libsqlite3-dev libdb++-dev"
export NO_DEPENDS=1
export RUN_UNIT_TESTS=false
export RUN_FUNCTIONAL_TESTS=false
@@ -18,7 +18,7 @@ export RUN_CHECK_DEPS=true
export RUN_TIDY=true
export GOAL="install"
export BITCOIN_CONFIG="\
-DWITH_ZMQ=ON -DBUILD_GUI=ON -DBUILD_BENCH=ON -DWITH_NATPMP=ON -DWITH_MINIUPNPC=ON -DWITH_USDT=ON -DWITH_BDB=ON -DWARN_INCOMPATIBLE_BDB=OFF \
-DWITH_ZMQ=ON -DBUILD_GUI=ON -DBUILD_BENCH=ON -DWITH_MINIUPNPC=ON -DWITH_USDT=ON -DWITH_BDB=ON -DWARN_INCOMPATIBLE_BDB=OFF \
-DENABLE_HARDENING=OFF \
-DCMAKE_C_COMPILER=clang-${TIDY_LLVM_V} \
-DCMAKE_CXX_COMPILER=clang++-${TIDY_LLVM_V} \

4
ci/test/00_setup_env_native_valgrind.sh
View File

@@ -8,14 +8,14 @@ export LC_ALL=C.UTF-8
export CI_IMAGE_NAME_TAG="docker.io/ubuntu:24.04"
export CONTAINER_NAME=ci_native_valgrind
export PACKAGES="valgrind clang-16 llvm-16 libclang-rt-16-dev python3-zmq libevent-dev libboost-dev libdb5.3++-dev libminiupnpc-dev libnatpmp-dev libzmq3-dev libsqlite3-dev"
export PACKAGES="valgrind clang-16 llvm-16 libclang-rt-16-dev python3-zmq libevent-dev libboost-dev libdb5.3++-dev libminiupnpc-dev libzmq3-dev libsqlite3-dev"
export USE_VALGRIND=1
export NO_DEPENDS=1
export TEST_RUNNER_EXTRA="--exclude feature_init,rpc_bind,feature_bind_extra" # feature_init excluded for now, see https://github.com/bitcoin/bitcoin/issues/30011 ; bind tests excluded for now, see https://github.com/bitcoin/bitcoin/issues/17765#issuecomment-602068547
export GOAL="install"
# TODO enable GUI
export BITCOIN_CONFIG="\
-DWITH_ZMQ=ON -DWITH_BDB=ON -DWITH_NATPMP=ON -DWITH_MINIUPNPC=ON -DWARN_INCOMPATIBLE_BDB=OFF -DBUILD_GUI=OFF \
-DWITH_ZMQ=ON -DWITH_BDB=ON -DWITH_MINIUPNPC=ON -DWARN_INCOMPATIBLE_BDB=OFF -DBUILD_GUI=OFF \
-DCMAKE_C_COMPILER=clang-16 \
-DCMAKE_CXX_COMPILER=clang++-16 \
"