[PATCH v2 07/14] AP: Rename SAE anti clogging variables and functions

Jouni Malinen j at w1.fi
Mon Jan 25 17:56:06 EST 2021


On Wed, Dec 16, 2020 at 01:00:58PM +0200, Ilan Peer wrote:
> PASN authentication mandates support for comeback flow, which
> among others can be used for anti-clogging purposes.
> 
> As the SAE support for anti clogging can also be used for PASN,
> start modifying the source code so the anti clogging support
> can be used for both SAE and PASN.
> 
> As a start, rename some variables/functions etc. so that they
> would not be SAE specific.

> diff --git a/hostapd/config_file.c b/hostapd/config_file.c
> @@ -4203,8 +4203,8 @@ static int hostapd_config_fill(struct hostapd_config *conf,

> -	} else if (os_strcmp(buf, "sae_anti_clogging_threshold") == 0) {
> -		bss->sae_anti_clogging_threshold = atoi(pos);
> +	} else if (os_strcmp(buf, "anti_clogging_threshold") == 0) {
> +		bss->anti_clogging_threshold = atoi(pos);

This does not look reasonable since it would break backwards
compatibility with existing hostapd SAE configuration and would prevent
updated hostapd from starting with previously working configuration.
Furthermore, this does not update hostapd/hostapd.conf to match. I'll
drop this part about renaming the configuration variable itself.

> diff --git a/tests/hwsim/test_sae.py b/tests/hwsim/test_sae.py
> @@ -256,7 +256,7 @@ def test_sae_anti_clogging(dev, apdev):
> -    params['sae_anti_clogging_threshold'] = '1'
> +    params['anti_clogging_threshold'] = '1'

I'll drop these changes to test_sae.py since they should not be needed
with backwards compatible manner of handling configuration parameter
names.
 
-- 
Jouni Malinen                                            PGP id EFC895FA



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