* Modernize build: switch to CMake, add unit tests, fix man pages
Remove autotools (configure.ac, Makefile.am, m4/, autogen.sh) and make
CMake the sole build system. Enhance CMake with proper Find modules for
MbedTLS, libsodium, PCRE, and c-ares with version/feature detection.
Add support for connmarktos, nftables, stack protector, and MinGW.
Add 10 unit test suites (CTest) covering base64, buffer, cache, crypto,
jconf, json, netutils, ppbloom, rule, and utils modules. Add a Python
stress test measuring bandwidth per cipher with memory leak detection.
Fix man page typos ("Resovle" -> "Resolve"), document missing TCP buffer
options, fix ss-manager duplicate --executable entry, add example section
to ss-tunnel, and document --workdir and --nftables-sets options.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* Migrate from PCRE to PCRE2
Replace legacy PCRE (libpcre3) with PCRE2 (libpcre2-8). PCRE1 has been
end-of-life since 2021.
- src/rule.h: use pcre2_code and pcre2_match_data types
- src/rule.c: pcre_compile -> pcre2_compile, pcre_exec -> pcre2_match,
pcre_free -> pcre2_code_free, with proper error message retrieval
- cmake/FindPCRE.cmake -> cmake/FindPCRE2.cmake: find libpcre2-8 via
pkg-config, pcre2-config, or manual search
- Update all CMakeLists.txt, config.h.cmake, configure.cmake, README.md
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* Update Dockerfiles: use CMake build and pcre2-dev
The alpine Dockerfile still used autotools (autogen.sh/configure) which
were removed. Switch to cmake build and replace pcre-dev with pcre2-dev.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* Fix Docker build: disable tests and remove git dep
The tests/ directory is excluded by .dockerignore, so pass
-DBUILD_TESTING=OFF to cmake. Submodules are already checked out
by actions/checkout, no need for git inside the container.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* Fix Docker build: disable static libs (not available in alpine)
Alpine's mbedtls-dev only provides shared libraries. Disable static
build since Docker only needs shared binaries.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* Rewrite GitHub Actions: build and test directly on runner
Replace Docker-based CI with direct cmake build on ubuntu-latest and
macos-latest. Install dependencies via apt/brew, build with cmake,
run unit tests with ctest.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* Fix CI: use mbedtls@3 on macOS, disable static build
- macOS: brew's mbedtls is now v4 (incompatible), use mbedtls@3
- Disable static build since CI runners lack static lib packages
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* Fix test build on Linux: add stdint.h and link libm
- test_ppbloom.c: add missing #include <stdint.h> for uint8_t
- test_json: link against libm for pow() used in json.c
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* Fix test_ppbloom link: add libm for bloom's log()
On Linux, libbloom uses log() which requires explicit -lm linkage.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* Fix Linux build: link libm for test_buffer and test_crypto, fix warnings
Both test_buffer and test_crypto link libbloom.so which uses log() from
libm. Also fix unused variable warnings in test_json.c that would fail
with -Werror.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* Fix Linux build: link libm for test_jconf (json.c uses pow)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* CI: add unit test and stress test steps to GitHub Actions
Split the Test step into separate "Unit tests" (ctest) and "Stress test"
(stress_test.py with 10MB transfer across all AEAD ciphers) steps for
better visibility.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Signed integer overflows can happen in three distinct places. This
fixes it so an error happens when an overflow is observed.
Signed-off-by: David Korczynski <david@adalogics.com>
ref shadowsocks/shadowsocks-rust#855
When receiving UDP packets from remote servers, Redir will have to
create transparent sockets to bind() on those target addresses and then
relay data back to the local client. Target addresses may be IPv4 or
IPv6 addresses, so we may have to create that transprent sockets based
on the target addresses' family.
The most simpliest and easiest way is to always create IPv6 sockets and
converts IPv4 binding addresses and peer addresses to IPv4-mapped-IPv6.
Set {listen,server}_sock to -1 when needed as already done in
src/manager.c by commit ecf1fcc845 to
avoid the following build failure:
local.c: In function 'create_and_bind':
local.c:218:12: error: 'listen_sock' may be used uninitialized in this function [-Werror=maybe-uninitialized]
218 | return listen_sock;
| ^~~~~~~~~~~
Fixes:
- http://autobuild.buildroot.org/results/27471a878ff52a972ac087d534e44fb0c50808f6
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
The change is to support the 'fail2ban' feature. Instead of
blocking IPs by server itself, server just add malicious IPs
to specified sets of nftables. So admin can configure rules
to deal with those IPs.
Notes: cap_net_admin capability is required.
Example configuration:
# nft add table ip fail2ban
# nft add chain ip fail2ban input { type filter hook input priority 0 \; }
# nft add set ip fail2ban badips { type ipv4_addr \; flags dynamic, timeout \; timeout 1h \; }
# nft add rule ip fail2ban input ip saddr @badips drop
# ss-server -c config.json --nftables-sets badips
Use pkg-config to retrieve the dependencies of netfilter_conntrack
and avoid the following build failure when building statically:
configure:13096: /data/buildroot-test/instance-1/output-1/host/bin/x86_64-linux-gcc -o conftest -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -static -I/data/buildroot-test/instance-1/output-1/host/x86_64-buildroot-linux-uclibc/sysroot/usr/include -DPCRE_STATIC -pthread -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -static -L/data/buildroot-test/instance-1/output-1/host/x86_64-buildroot-linux-uclibc/sysroot/usr/lib conftest.c -lnetfilter_conntrack -lnfnetlink -lev -lcares -lsodium -lmbedcrypto -lpcre >&5
/data/buildroot-test/instance-1/output-1/host/opt/ext-toolchain/bin/../lib/gcc/x86_64-buildroot-linux-uclibc/8.3.0/../../../../x86_64-buildroot-linux-uclibc/bin/ld: /data/buildroot-test/instance-1/output-1/host/x86_64-buildroot-linux-uclibc/sysroot/usr/lib/libnetfilter_conntrack.a(api.o): in function `nfct_fill_hdr.constprop.4':
api.c:(.text+0x3f): undefined reference to `mnl_nlmsg_put_header'
Fixes:
- http://autobuild.buildroot.org/results/6cad497a7ab941a0ee3fd7007defc81e30cdcbe0
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
- This is very useful in advanced scenarios such as ss-redir or chaining of servers using TPROXY
to avoid bufferbloat-like performance degradation due to default large buffers of OS.
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