8000 Not working with WINE 8 · Issue #103 · epics-base/pvxs · GitHub
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mdavidsaver opened this issue Feb 27, 2025 · 2 comments
Open

Not working with WINE 8 #103

mdavidsaver opened this issue Feb 27, 2025 · 2 comments

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@mdavidsaver
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After building with cross-mingw as shown below, I am not able to connect to an IOC running with WINE 8. The symptom is that all IPv4 TCP connections are refused. However, IPv6 TCP connections are allowed.

2025-02-26T18:05:49.894265474 ERR pvxs.tcp.io connection to Server 10.127.127.1:5075 closed with socket error 111 : Connection refused

 $ netstat -tlpn|grep 5075
tcp6       0      0 :::5075                 :::*                    LISTEN      1868937/wineserver6 
$ telnet -4 localhost 5075
Trying 127.0.0.1...
Connection failed: Connection refused
$ telnet -6 localhost 5075
Trying ::1...
Connected to localhost.
Escape character is '^]'.
�A�@    anonymousca^]


sudo apt-get install build-essential libevent-dev libreadline-dev mingw-w64 cmake git wine64

git clone --depth 1 https://github.com/epics-base/epics-base
git clone --depth 1 --recursive https://github.com/epics-base/pvxs
cat <<EOF >> epics-base/configure/CONFIG_SITE.local
CROSS_COMPILER_TARGET_ARCHS+=windows-x64-mingw
EOF
cat <<EOF >> pvxs/configure/RELEASE.local
EPICS_BASE=\$(TOP)/../epics-base
EOF
make -C epics-base -j12
make -C pvxs/bundle libevent.windows-x64-mingw
make -C pvxs -j12

cat <<EOF > run-softIocPVX.bat
set PATH=%CD%/epics-base/bin/windows-x64-mingw;%PATH%
set PATH=%CD%/pvxs/bin/windows-x64-mingw;%PATH%
set PATH=%CD%/pvxs/bundle/usr/windows-x64-mingw/lib;%PATH%

softIocPVX %2
EOF

WINEPREFIX=$PWD/wine wineboot
WINEPREFIX=$PWD/wine wine run-softIocPVX.bat
@mdavidsaver
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Probably a regression introduced by #22.

@mdavidsaver mdavidsaver mentioned this issue Feb 27, 2025
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@mdavidsaver
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... or some of the quirks of WINE have changed?

if is_wine() is changed to always return false, then softIocPVX can be reached by local broadcast.

pvxs/src/os/WIN32/osdSockExt.cpp

Lines 26 to 29 in f2e49a8

bool is_wine()
{
HMODULE nt = GetModuleHandle("ntdll.dll");
return nt && GetProcAddress(nt, "wine_get_version");

I suspect this statement somehow no longer applies to WINE circa 8.0.

pvxs/src/server.cpp

Lines 461 to 465 in f2e49a8

if(evsocket::ipstack==evsocket::Linsock) {
/* Linux IP stack disallows binding both 0.0.0.0 and [::] for the same port.
* so we must always bind [::]
*/
tcpifaces.emplace_back(AF_INET6);

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