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git://git.code.sf.net/p/xtables-addons/xtables-addons
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65eeb7f1f6
The subnet list may become really large (United States: ~15000 entries), which means a use of roughly 120 KB, and kmalloc may fail to find a contiguous block in physical memory. Virtual contiguity is enough, so use vmalloc/vfree. vfree may not be called within a spin_lock_bh area, so release the lock first, it is safe to do so.
Xtables-addons ============== Xtables-addons is the proclaimed successor to patch-o-matic(-ng). It contains extensions that were not accepted in the main Xtables package. Xtables-addons is different from patch-o-matic in that you do not have to patch or recompile either kernel or Xtables(iptables). But please see the INSTALL file for the minimum requirements of this package. External extensions =================== The program "xa-download-more" can be used to download more extensions from 3rd parties into the source tree. The URLs are listed in the "sources" file. If the "sources" file contains an entry like http://foobar.org/xa/ xa-download-more will inspect http://foobar.org/xa/xa-index.txt for files to download. That file may contain foobar.tar.bz2 and xa-download-more will then retrieve and unpack http://foobar.org/xa/foobar.tar.bz2. Files that should be contained in the tarball are an mconfig and Kbuild files to control building the extension, libxt_foobar.c for the userspace extension and xt_foobar.c for the kernel extension. mconfig.foobar extensions/Kbuild.foobar extensions/libxt_foobar.c extensions/libxt_foobar.man extensions/xt_foobar.c extensions/xt_foobar.h