Building kernel modules from sources
IPFIRE kernel modules need to be built from sources.
After extracting
compressed folder, place yourself inside kernel directory, which contains
kernel firewall modules. Then impart the command:
make
This command builds interface with default options, i.e. with rule naming enabled.
If rule naming is enabled in interface compiling, it has to be enable also when
building kernel modules. This is achieved by compiling interface with the same
make command. (See previous chapter
for user interface building details).
The reason why you would disable rule naming is to decrease rule and kernel state and
translation tables sizes by 20 bytres (the maximum length for rule names defined in
constant RULENAMELEN in source headers). You can disable this
feature typing
make DISABLE_RULENAME=1
as building command.
NOTE:
If user interface is built without rule name support and kernel modules are built
within, firewall interface will refuse to start giving an explaining message.
Installing kernel modules into running kernel
After building modules, you can install them giving:
make install .
This copies just built modules into the right place and executes depmod -ae
automatically. Then modules are ready to be loaded!
NOTE:
the sources have been built and tested with 2.6.x kernel series, and in particular with
version 2.6.12.3. They have been compiled also in some other versions of 2.6 kernel,
anyway greater or equal than 2.6.9.