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This is the manual for GNU Gatekeeper 3.3. Chapters: Contents · Introduction · Installation · Getting started · Basic Config · Routed Mode & Proxy · Routing · RAS Config · Authentication · Accounting · Neighbors · Per Endpoint Config · Advanced Config · Monitoring · Advanced Topics
The GNU Gatekeeper Manual Chapter 1414. Advanced TopicsThis portion of the manual will cover advanced topics, such as compiling and debugging the GNU Gatekeeper.
14.1 Compiling GnuGk from CVSThe following instructions are an example of how to compile GnuGk from source on an Ubuntu platform. First make sure your system is up-to-date and install the tools needed for the compile $ sudo apt-get update $ sudo apt-get install flex bison build-essential subversion cvs pkg-config automakeAlso make sure the "...-devel" packages for all databases you want to use are installed. NOTE: As of 2011-09-28, it's recommended that you do not use PTLib SVN; it is undergoing many changes that are incompatible with GnuGK. Get and compile PTLib from SourceForge: $ cd ~ $ svn co http://opalvoip.svn.sourceforge.net/svnroot/opalvoip/ptlib/tags/v2_10_9 ptlib-v2.10.9/ $ cd ptlib-v2.10.9 $ export PTLIBDIR=~/ptlib-v2.10.9 $ ./configure $ make optnoshared Get and compile H323Plus: $ cd ~ $ cvs -d:pserver:anonymous@h323plus.cvs.sourceforge.net:/cvsroot/h323plus login (just press enter when prompted for password) $ cvs -z3 -d:pserver:anonymous@h323plus.cvs.sourceforge.net:/cvsroot/h323plus co -P h323plus $ cd h323plus $ export OPENH323DIR=~/h323plus $ ./configure $ make optnoshared Get and compile GnuGk: $ cd ~ $ cvs -d:pserver:anonymous@openh323gk.cvs.sourceforge.net:/cvsroot/openh323gk login (just press enter when prompted for password) $ cvs -z3 -d:pserver:anonymous@openh323gk.cvs.sourceforge.net:/cvsroot/openh323gk co -P openh323gk $ cd openh323gk $ ./configure --enable-h46018 $ make optnoshared Once the compile is finished, the binary can be found in the obj_linux_x86_s subdirectory. At this time, because all libraries and GnuGk are running CVS and SVN versions of the software, in order to stay up-to-date, run the following:
$ cd ~/ptlib $ svn update $ cd ~/h323plus $ cvs update $ cd ~/openh323gk $ cvs updateIf any of the source files are changed, you have to recompile.
14.2 Tracing GnuGkIf GnuGk doesn't handle calls like you expect, you can enable tracing to see what GnuGk does internally. Don't confuse this with connection to the status port and looking at the events ("telnet 127.0.0.1 7000"). Creating a trace file will reveal a lot more of the internal workings. On the command line, start GnuGk with -ttttt and -o to write the trace to a file: gnugk -c gnugk.ini -ttttt -o trace.log If you have a lot of calls, trace.log can grow quite large, so make sure you disable it after you are done with testing, or at least reduce the trace level to 2 or 3 for production. You can also enable tracing in your config file: [Gatekeeper::Main] TraceLevel=5 [LogFile] Filename=trace.log Or you can enable tracing through the status port: setlog trace.log debug trc 5 Doing it through the status port has the advantage that you won't interrupt ongoing calls and you can quickly turn it on or off. The trace file will contain information al everything GnuGk does. To reduce it to a single call, you can eg. search for the callID or write a small Perl script to extract only those messages you are interested in.
14.3 Debugging GnuGk (on Linux)In order to use gdb with GnuGk, the software and libraries must be compiled with debug support. You may follow the instructions above in obtaining the software, but the compile in each subdirectory must be: $ make debugnoshared Allow unlimited core dumps: ulimit -c unlimited Run GnuGk: ~/openh323/obj_linux_x86_64_d_s/gnugk -c your.ini # wait for crash gdb obj_linux_x86_64_d_s/gnugk core bt Once you've obtained a backtrace, post it to the mailing list. Note: On some systems, the core dump is named "core.xxx" where xxx is the process number of the program that crashed.
Next Previous Contents Chapters: Contents · Introduction · Installation · Getting started · Basic Config · Routed Mode & Proxy · Routing · RAS Config · Authentication · Accounting · Neighbors · Per Endpoint Config · Advanced Config · Monitoring · Advanced Topics
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Last updated: 15. Apr 2013 Page maintained by Jan Willamowius |