Re: [PATCH nft] src: Honor obligatory stateless printing of flow tables

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On Wed, Jan 18, 2017 at 09:06:47PM -0200, Elise Lennion wrote:

Please, next time always add a description here, even is small one,
this is good to help other follow track of what we're doing.

I have applied this, but one more comment below.

> Signed-off-by: Elise Lennion <elise.lennion@xxxxxxxxx>
> ---
>  include/nftables.h | 2 +-
>  src/main.c         | 4 ++--
>  src/statement.c    | 4 ++++
>  3 files changed, 7 insertions(+), 3 deletions(-)
> 
> diff --git a/include/nftables.h b/include/nftables.h
> index 760bbff..6f54155 100644
> --- a/include/nftables.h
> +++ b/include/nftables.h
> @@ -26,10 +26,10 @@ enum debug_level {
>  
>  extern unsigned int max_errors;
>  extern unsigned int numeric_output;
> +extern unsigned int stateless_output;
>  extern unsigned int ip2name_output;
>  extern unsigned int handle_output;
>  extern unsigned int debug_level;
> -extern bool stateless_output;
>  extern const char *include_paths[INCLUDE_PATHS_MAX];
>  
>  enum nftables_exit_codes {
> diff --git a/src/main.c b/src/main.c
> index 6d073d5..6ba752b 100644
> --- a/src/main.c
> +++ b/src/main.c
> @@ -30,12 +30,12 @@
>  
>  unsigned int max_errors = 10;
>  unsigned int numeric_output;
> +unsigned int stateless_output;
>  unsigned int ip2name_output;
>  unsigned int handle_output;
>  #ifdef DEBUG
>  unsigned int debug_level;
>  #endif
> -bool stateless_output;
>  
>  const char *include_paths[INCLUDE_PATHS_MAX] = { DEFAULT_INCLUDE_PATH };
>  static unsigned int num_include_paths = 1;
> @@ -291,7 +291,7 @@ int main(int argc, char * const *argv)
>  			numeric_output++;
>  			break;
>  		case OPT_STATELESS:
> -			stateless_output = true;
> +			stateless_output++;
>  			break;
>  		case OPT_IP2NAME:
>  			ip2name_output++;
> diff --git a/src/statement.c b/src/statement.c
> index 7e2e448..20f37a6 100644
> --- a/src/statement.c
> +++ b/src/statement.c
> @@ -109,6 +109,8 @@ struct stmt *verdict_stmt_alloc(const struct location *loc, struct expr *expr)
>  
>  static void flow_stmt_print(const struct stmt *stmt)
>  {
> +	stateless_output++;
> +
>  	printf("flow ");
>  	if (stmt->flow.set) {
>  		expr_print(stmt->flow.set, NULL);
> @@ -119,6 +121,8 @@ static void flow_stmt_print(const struct stmt *stmt)
>  	printf(" ");

I have mangled this patch, so:

	stateless_output++;

happens here, just before this call below:

>  	stmt_print(stmt->flow.stmt);

So we restrict it to the statement that defines the flow table
entries.

Thanks!

>  	printf("} ");
> +
> +	stateless_output--;
>  }
>  
>  static void flow_stmt_destroy(struct stmt *stmt)
> -- 
> 2.7.4
> 
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