linux-kernel - Re: [PATCH v3 0/6] bootconfig: Add mixed subkeys and value under the same key

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] [day] [month] [year] [list]

Message-Id: <20210602164542.c08e17d67467fa94df7b9ea3@kernel.org>
Date:   Wed, 2 Jun 2021 16:45:42 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     Steven Rostedt <rostedt@...dmis.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Devin Moore <devinmoore@...gle.com>
Subject: Re: [PATCH v3 0/6] bootconfig: Add mixed subkeys and value under
 the same key

Hi,

Sorry, I missed to use the old series. Let me update it.

On Wed,  2 Jun 2021 15:24:22 +0900
Masami Hiramatsu <mhiramat@...nel.org> wrote:

> Hi,
> 
> Here is the 3rd version of the series which updates bootconfig to
> support mixed subkeys and a value under the same key.
> 
> Since the kernel cmdline accepts options like 
> "aaa.bbb=val1 aaa.bbb.ccc=val2", it is better that the bootconfig
> also support it.
> 
> Here is the previous series:
>   https://lore.kernel.org/lkml/162157886618.78209.11141970623539574861.stgit@devnote2/
> 
> In this version, I rebased on top of the latest linus tree and
> add the build error fix [1/6](*) and a cleanup patch [6/6].
> 
> (*) https://lore.kernel.org/lkml/162087519356.442660.11385099982318160180.stgit@devnote2/
> 
> Changes in v3
>  [1/6]:
>      - Added from separated thread. This is a fundamental fix.
>  [6/6]:
>      - New cleanup patch.
> 
> 
> With this series, sub-keys and a value can co-exist under a parent key.
> For example, following config is allowed.
> 
>  foo = value1
>  foo.bar = value2
> 
> Note, since there is no syntax to put a raw value directly under a
> structured key, you have to define it outside of the brace. For example,
> 
>  foo {
>      bar = value1
>      bar {
>          baz = value2
>          qux = value3
>      }
>  }
> 
> Also, the order of the value node under a key is fixed. If there
> are a value and subkeys, the value is always the first child node
> of the key. Thus if user specifies subkeys first, e.g.
> 
>  foo.bar = value1
>  foo = value2
> 
> In the program (and /proc/bootconfig), it will be shown as below
> 
>  foo = value2
>  foo.bar = value1
> 
> 
> Thank you,
> 
> ---
> 
> Masami Hiramatsu (6):
>       tools/bootconfig: Fix a build error accroding to undefined fallthrough
>       bootconfig: Change array value to use child node
>       bootconfig: Support mixing a value and subkeys under a key
>       tools/bootconfig: Support mixed value and subkey test cases
>       docs: bootconfig: Update for mixing value and subkeys
>       bootconfig: Share the checksum function with tools
> 
> 
>  tools/bootconfig/include/linux/bootconfig.h        |    4 +
>  tools/bootconfig/main.c                            |   62 +++++++++++++-------
>  tools/bootconfig/samples/bad-mixed-kv1.bconf       |    3 -
>  tools/bootconfig/samples/bad-mixed-kv2.bconf       |    3 -
>  tools/bootconfig/samples/bad-override.bconf        |    3 -
>  tools/bootconfig/samples/bad-override2.bconf       |    3 -
>  tools/bootconfig/samples/good-mixed-append.bconf   |    4 +
>  tools/bootconfig/samples/good-mixed-kv1.bconf      |    3 +
>  tools/bootconfig/samples/good-mixed-kv2.bconf      |    3 +
>  tools/bootconfig/samples/good-mixed-kv3.bconf      |    6 ++
>  tools/bootconfig/samples/good-mixed-override.bconf |    4 +
>  11 files changed, 64 insertions(+), 34 deletions(-)
>  delete mode 100644 tools/bootconfig/samples/bad-mixed-kv1.bconf
>  delete mode 100644 tools/bootconfig/samples/bad-mixed-kv2.bconf
>  delete mode 100644 tools/bootconfig/samples/bad-override.bconf
>  delete mode 100644 tools/bootconfig/samples/bad-override2.bconf
>  create mode 100644 tools/bootconfig/samples/good-mixed-append.bconf
>  create mode 100644 tools/bootconfig/samples/good-mixed-kv1.bconf
>  create mode 100644 tools/bootconfig/samples/good-mixed-kv2.bconf
>  create mode 100644 tools/bootconfig/samples/good-mixed-kv3.bconf
>  create mode 100644 tools/bootconfig/samples/good-mixed-override.bconf
> 
> --
> Masami Hiramatsu (Linaro) <mhiramat@...nel.org>


-- 
Masami Hiramatsu <mhiramat@...nel.org>