Re: [PATCH v2 net-next 2/4] net: add skeleton of bpfilter kernel module

On Mon, May 07, 2018 at 06:51:24PM +, Luis R. Rodriguez wrote: > > Notice that _binary_net_bpfilter_bpfilter_umh_start - end > > is placed into .init.rodata section, so it's freed as soon as __init > > function of bpfilter.ko is finished. > > As part of __init the bpfilter.ko does first

Re: [PATCH v2 net-next 2/4] net: add skeleton of bpfilter kernel module

On Wed, May 02, 2018 at 09:36:02PM -0700, Alexei Starovoitov wrote: > bpfilter.ko consists of bpfilter_kern.c (normal kernel module code) > and user mode helper code that is embedded into bpfilter.ko > > The steps to build bpfilter.ko are the following: > - main.c is compiled by HOSTCC into the

Re: [PATCH v2 net-next 2/4] net: add skeleton of bpfilter kernel module

From: Harald Welte Date: Mon, 7 May 2018 17:24:35 +0200 > But if the ruleset loads but behaves different than before (because e.g. > it's executed from a completely different place in the stack), that's > IMHO an absolute no-go that must be avoided at all cost. That's not

Re: [PATCH v2 net-next 2/4] net: add skeleton of bpfilter kernel module

Hi Alexei + netdev list, On Wed, May 02, 2018 at 09:36:02PM -0700, Alexei Starovoitov wrote: > Later bpfilter_process_sockopt() will be called from bpfilter hooks > in get/setsockopt() to pass iptable commands into umh via bpfilter.ko This is a part I'm quite heavily opposed to - at least at

Re: [PATCH v2 net-next 2/4] net: add skeleton of bpfilter kernel module

On Thu, May 03, 2018 at 03:23:55PM +0100, Edward Cree wrote: > On 03/05/18 05:36, Alexei Starovoitov wrote: > > bpfilter.ko consists of bpfilter_kern.c (normal kernel module code) > > and user mode helper code that is embedded into bpfilter.ko > > > > The steps to build bpfilter.ko are the

Re: [PATCH v2 net-next 2/4] net: add skeleton of bpfilter kernel module

On 03/05/18 05:36, Alexei Starovoitov wrote: > bpfilter.ko consists of bpfilter_kern.c (normal kernel module code) > and user mode helper code that is embedded into bpfilter.ko > > The steps to build bpfilter.ko are the following: > - main.c is compiled by HOSTCC into the bpfilter_umh elf