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Diffstat (limited to 'docs/gettingstarted/developers/buildwireshark.md')
| -rw-r--r-- | docs/gettingstarted/developers/buildwireshark.md | 49 |
1 files changed, 20 insertions, 29 deletions
diff --git a/docs/gettingstarted/developers/buildwireshark.md b/docs/gettingstarted/developers/buildwireshark.md index 3da70e9e0ba..5d87b7a9b7b 100644 --- a/docs/gettingstarted/developers/buildwireshark.md +++ b/docs/gettingstarted/developers/buildwireshark.md @@ -1,27 +1,20 @@ How to build a vpp dispatch trace aware Wireshark ================================================= -At some point, we will upstream our vpp pcap dispatch trace dissector. -It's not finished - contributions welcome - and we have to work through -whatever issues will be discovered during the upstreaming process. +The vpp pcap dispatch trace dissector has been merged into the wireshark +main branch, so the process is simple. Download wireshark, compile it, +and install it. -On the other hand, it's ready for some tire-kicking. Here's how to build -wireshark. +Download wireshark source code +------------------------------ -Download and patch wireshark source code ------------------------------------------ - -The wireshark git repo is large, so it takes a while to clone. +The wireshark git repo is large, so it takes a while to clone. ``` - git clone https://code.wireshark.org/review/wireshark - cp .../extras/wireshark/packet-vpp.c wireshark/epan/dissectors - patch -p1 < .../extras/wireshark/diffs.txt + git clone https://code.wireshark.org/review/wireshark ``` -The small patch adds packet-vpp.c to the dissector list. - -Install prerequisite Debian packages +Install prerequisite packages ------------------------------------ Here is a list of prerequisite packages which must be present in order @@ -29,22 +22,24 @@ to compile wireshark, beyond what's typically installed on an Ubuntu 18.04 system: ``` - libgcrypt11-dev flex bison qtbase5-dev qttools5-dev-tools qttools5-dev - qtmultimedia5-dev libqt5svg5-dev libpcap-dev qt5-default + libgcrypt11-dev flex bison qtbase5-dev qttools5-dev-tools qttools5-dev + qtmultimedia5-dev libqt5svg5-dev libpcap-dev qt5-default ``` Compile Wireshark ----------------- Mercifully, Wireshark uses cmake, so it's relatively easy to build, at -least on Ubuntu 18.04. +least on Ubuntu 18.04. ``` - $ cd wireshark - $ cmake -G Ninja - $ ninja -j 8 - $ sudo ninja install + $ cd wireshark + $ mkdir build + $ cd build + $ cmake -G Ninja ../ + $ ninja -j 8 + $ sudo ninja install ``` Make a pcap dispatch trace @@ -52,11 +47,12 @@ Make a pcap dispatch trace Configure vpp to pass traffic in some fashion or other, and then: + ``` vpp# pcap dispatch trace on max 10000 file vppcapture buffer-trace dpdk-input 1000 - ``` + or similar. Run traffic for long enough to capture some data. Save the dispatch trace capture like so: @@ -73,9 +69,4 @@ dispatch trace pcap files because they won't understand the encap type. Set wireshark to filter on vpp.bufferindex to watch a single packet traverse the forwarding graph. Otherwise, you'll see a vector of packets -in e.g. ip4-lookup, then a vector of packets in ip4-rewrite, etc. - - - - - +in e.g. ip4-lookup, then a vector of packets in ip4-rewrite, etc. |