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From: "Jose M. Guisado" <guigom@riseup.net>
To: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: netfilter-devel@vger.kernel.org, erig@erig.me, phil@nwl.cc
Subject: Re: [PATCH nft v4] src: enable json echo output when reading native syntax
Date: Tue, 4 Aug 2020 14:13:01 +0200	[thread overview]
Message-ID: <12943ed7-2836-0201-73f4-7dc8ed0d91cb@riseup.net> (raw)
In-Reply-To: <20200804110552.GA18345@salvia>

Hi Pablo, sorry about the formatting issues.

One thing about your suggestion:

On 4/8/20 13:05, Pablo Neira Ayuso wrote:
> if (!ctx->json_root)
>                  return;

Checking uniquely for the absence of json_root is not enough as 
json_echo may have been initialized. In essence, the case the patch is 
fixing is when json_root is null but json_echo is not, to denote that we 
want json echo output but have not read json from input.

In addition, v5 will contain a check for json_echo initialization inside 
monitor.c to avoid re-initializing nft->json_echo when the callback is 
built again, this happens when reading multiple times from a mnl socket 
(see mnl.c:433 inside mnl_batch_talk).

Regards.

  reply	other threads:[~2020-08-04 12:23 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-30 19:53 [PATCH nft] src: enable output with "nft --echo --json" and nftables syntax Jose M. Guisado Gomez
2020-07-31  0:00 ` [PATCH nft v2 0/1] " Jose M. Guisado Gomez
2020-07-31  0:00 ` [PATCH nft v2 1/1] " Jose M. Guisado Gomez
2020-07-31  9:22   ` Pablo Neira Ayuso
2020-07-31 10:49     ` [PATCH nft v3] " Jose M. Guisado Gomez
2020-08-04 10:38       ` [PATCH nft v4] src: enable json echo output when reading native syntax Jose M. Guisado Gomez
2020-08-04 11:05         ` Pablo Neira Ayuso
2020-08-04 12:13           ` Jose M. Guisado [this message]
2020-08-04 12:15             ` Pablo Neira Ayuso
2020-08-04 12:37         ` Phil Sutter
2020-08-04 13:05           ` Jose M. Guisado
2020-08-04 13:14             ` Phil Sutter
2020-08-04 13:44               ` Jose M. Guisado
2020-08-04 14:04                 ` Pablo Neira Ayuso
2020-08-04 14:17                   ` Pablo Neira Ayuso
2020-08-04 14:20                   ` Phil Sutter
2020-08-04 15:47                     ` Jose M. Guisado
2020-08-04 19:10                     ` Pablo Neira Ayuso
2020-08-05  9:31                       ` Phil Sutter
2020-08-05  9:45                         ` Pablo Neira Ayuso
2020-08-06  7:28                           ` Phil Sutter
2020-08-04 12:57         ` Eric Garver
2020-07-31 12:33     ` [PATCH nft v2 1/1] src: enable output with "nft --echo --json" and nftables syntax Phil Sutter
2020-07-31 12:58       ` Pablo Neira Ayuso
2020-07-31 13:48         ` Phil Sutter
2020-07-31 14:17           ` Eric Garver
2020-07-31 17:19             ` Pablo Neira Ayuso
2020-07-31 18:36               ` Eric Garver
2020-07-31 20:14                 ` Eric Garver
2020-07-31 17:30           ` Pablo Neira Ayuso
2020-08-01  0:02             ` Phil Sutter
2020-08-01 19:27               ` Pablo Neira Ayuso
2020-08-03 12:52                 ` Phil Sutter
2020-08-04 10:20                   ` Jose M. Guisado
2020-08-04 10:32                     ` Phil Sutter

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