netdev - Re: [PATCH v4 1/2] libbpf: Add setter for initial value for internal maps

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAEf4BzZpd_SMqsJx7UjZDUZk9UY48D2RVW2ero+Rg7=HPzRo=w@mail.gmail.com>
Date:   Sun, 29 Mar 2020 13:06:04 -0700
From:   Andrii Nakryiko <andrii.nakryiko@...il.com>
To:     Toke Høiland-Jørgensen <toke@...hat.com>
Cc:     Daniel Borkmann <daniel@...earbox.net>,
        Alexei Starovoitov <ast@...com>, bpf <bpf@...r.kernel.org>,
        Networking <netdev@...r.kernel.org>
Subject: Re: [PATCH v4 1/2] libbpf: Add setter for initial value for internal maps

On Sun, Mar 29, 2020 at 6:23 AM Toke Høiland-Jørgensen <toke@...hat.com> wrote:
>
> For internal maps (most notably the maps backing global variables), libbpf
> uses an internal mmaped area to store the data after opening the object.
> This data is subsequently copied into the kernel map when the object is
> loaded.
>
> This adds a function to set a new value for that data, which can be used to
> before it is loaded into the kernel. This is especially relevant for RODATA
> maps, since those are frozen on load.
>
> Signed-off-by: Toke Høiland-Jørgensen <toke@...hat.com>
> ---

LGTM.

Acked-by: Andrii Nakryiko <andriin@...com>

[...]