linux-kernel - Re: [PATCH] Replace HTTP links with HTTPS ones: BPF (Safe dynamic programs and tools)

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Message-ID: <CAADnVQKaL7cX2oCFLU7MW+CMf4ySbJf3tC3YqajDxgbuPCY-Cg@mail.gmail.com>
Date:   Thu, 2 Jul 2020 15:08:15 -0700
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     "Alexander A. Klimov" <grandmaster@...klimov.de>
Cc:     Jonathan Corbet <corbet@....net>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        Andrii Nakryiko <andriin@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...omium.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        X86 ML <x86@...nel.org>, "H. Peter Anvin" <hpa@...or.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Shuah Khan <shuah@...nel.org>,
        Stanislav Fomichev <sdf@...gle.com>,
        Quentin Monnet <quentin@...valent.com>,
        Andrey Ignatov <rdna@...com>,
        "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
        Network Development <netdev@...r.kernel.org>,
        bpf <bpf@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        Clang-Built-Linux ML <clang-built-linux@...glegroups.com>
Subject: Re: [PATCH] Replace HTTP links with HTTPS ones: BPF (Safe dynamic
 programs and tools)

On Thu, Jul 2, 2020 at 1:05 PM Alexander A. Klimov
<grandmaster@...klimov.de> wrote:
>
> Rationale:
> Reduces attack surface on kernel devs opening the links for MITM
> as HTTPS traffic is much harder to manipulate.
>
> Deterministic algorithm:
> For each file:
>   If not .svg:
>     For each line:
>       If doesn't contain `\bxmlns\b`:
>         For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
>           If both the HTTP and HTTPS versions
>           return 200 OK and serve the same content:
>             Replace HTTP with HTTPS.
>
> Signed-off-by: Alexander A. Klimov <grandmaster@...klimov.de>
> ---
>  Continuing my work started at 93431e0607e5.
>
>  If there are any URLs to be removed completely or at least not HTTPSified:
>  Just clearly say so and I'll *undo my change*.
>  See also https://lkml.org/lkml/2020/6/27/64
>
>  If there are any valid, but yet not changed URLs:
>  See https://lkml.org/lkml/2020/6/26/837
>
>  Documentation/bpf/bpf_devel_QA.rst          | 4 ++--
>  Documentation/bpf/index.rst                 | 2 +-
>  Documentation/networking/af_xdp.rst         | 2 +-
>  Documentation/networking/filter.rst         | 2 +-
>  arch/x86/net/bpf_jit_comp.c                 | 2 +-
>  include/linux/bpf.h                         | 2 +-
>  include/linux/bpf_verifier.h                | 2 +-
>  include/uapi/linux/bpf.h                    | 2 +-
>  kernel/bpf/arraymap.c                       | 2 +-
>  kernel/bpf/core.c                           | 2 +-
>  kernel/bpf/disasm.c                         | 2 +-
>  kernel/bpf/disasm.h                         | 2 +-
>  kernel/bpf/hashtab.c                        | 2 +-
>  kernel/bpf/helpers.c                        | 2 +-
>  kernel/bpf/syscall.c                        | 2 +-
>  kernel/bpf/verifier.c                       | 2 +-
>  kernel/trace/bpf_trace.c                    | 2 +-
>  lib/test_bpf.c                              | 2 +-
>  net/core/filter.c                           | 2 +-
>  samples/bpf/lathist_kern.c                  | 2 +-
>  samples/bpf/lathist_user.c                  | 2 +-
>  samples/bpf/sockex3_kern.c                  | 2 +-
>  samples/bpf/tracex1_kern.c                  | 2 +-
>  samples/bpf/tracex2_kern.c                  | 2 +-
>  samples/bpf/tracex3_kern.c                  | 2 +-
>  samples/bpf/tracex3_user.c                  | 2 +-
>  samples/bpf/tracex4_kern.c                  | 2 +-
>  samples/bpf/tracex4_user.c                  | 2 +-
>  samples/bpf/tracex5_kern.c                  | 2 +-
>  tools/include/uapi/linux/bpf.h              | 2 +-
>  tools/lib/bpf/bpf.c                         | 2 +-
>  tools/lib/bpf/bpf.h                         | 2 +-
>  tools/testing/selftests/bpf/test_maps.c     | 2 +-
>  tools/testing/selftests/bpf/test_verifier.c | 2 +-
>  34 files changed, 35 insertions(+), 35 deletions(-)

Nacked-by: Alexei Starovoitov <ast@...nel.org>

Pls don't touch anything bpf related with such changes.