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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-05-30 16:52:07 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-05-30 16:52:17 +0200 |
| commit | 9260319e7411ff8281700a532caa436f40120ec4 (patch) | |
| tree | 2f6bfe5f3458dd49d328d3a9eb508595450adec0 /gitlab/issues_text/target_missing/host_missing/accel_missing/1835 | |
| parent | 225caa38269323af1bfc2daadff5ec8bd930747f (diff) | |
| download | qemu-analysis-9260319e7411ff8281700a532caa436f40120ec4.tar.gz qemu-analysis-9260319e7411ff8281700a532caa436f40120ec4.zip | |
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Diffstat (limited to 'gitlab/issues_text/target_missing/host_missing/accel_missing/1835')
| -rw-r--r-- | gitlab/issues_text/target_missing/host_missing/accel_missing/1835 | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gitlab/issues_text/target_missing/host_missing/accel_missing/1835 b/gitlab/issues_text/target_missing/host_missing/accel_missing/1835 new file mode 100644 index 000000000..abdea2dbf --- /dev/null +++ b/gitlab/issues_text/target_missing/host_missing/accel_missing/1835 @@ -0,0 +1,18 @@ +IPv4 guest/outbound port forwarding not working +Description of problem: +Python http server running on the host can receive the first http request from guest and provides correct response, but the resent request gets stuck. Package couldn't be seen in `tcpdump` running on host. +Steps to reproduce: +1. Build libslirp, I am using HEAD @ master. +1. Build your QEMU with user network enabled to use slirp (`./configure -target-list=x86_64-softmmu --enable-slirp`). +1. Ran a Python server on host listening to port `6655` (`python3 -m http.server --bind :: 6655`). +1. Boot your QEMU with aforementioned QEMU command line, I am forwarding a server address to host's local address `guestfwd=tcp:10.0.2.100:6657-tcp:127.0.0.1:6655`. For image, I am using a ordinary Fedora 38 workstation live cdrom. +1. In your guest OS (emulated enviroment), open a terminal and run `curl http://10.0.2.100:6657`, this sends a http get to the +slirp outbound forwarding server. You should see the Python http server gets the request and provides correct response `::ffff:127.0.0.1 - - [17/Aug/2023 18:24:34] "GET / HTTP/1.1" 200 -`, nothing but just `ls` the directory. +5. Repeat step 4, you will see the `curl` command gets stuck. +Additional information: +I've added a .pacp capturing line in QEMU command line and investigated it via Wireshark, noticed the slirp gets the http get, but after that being stuck in some place, I saw the guest sending keep alive request to slirp, so I think this could be something in the QEMU side. + + + + + |