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network: use WPA version and privacy for ranking

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These ranking factors were moved out of scan.c and into
network.c as they are more relevant for network ranking
than BSS ranking.
This commit is contained in:
James Prestwood 2021-05-07 13:26:16 -07:00 committed by Denis Kenzior
parent 3fde169001
commit 0be5beffc8
1 changed files with 19 additions and 0 deletions
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19
src/network.c
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@ -1452,6 +1452,10 @@ int network_rank_compare(const void *a, const void *b, void *user)
void network_rank_update(struct network *network, bool connected)
{
static const double RANK_RSNE_FACTOR = 1.2;
static const double RANK_WPA_FACTOR = 1.0;
static const double RANK_OPEN_FACTOR = 0.5;
static const double RANK_NO_PRIVACY_FACTOR = 0.5;
/*
* Theoretically there may be difference between the BSS selection
* here and in network_bss_select but those should be rare cases.
@ -1491,6 +1495,21 @@ void network_rank_update(struct network *network, bool connected)
network->rank = rankmod_table[n] * best_bss->rank + USHRT_MAX;
} else
network->rank = best_bss->rank;
/*
* Prefer RSNE first, WPA second. Open networks are much less
* desirable.
*/
if (best_bss->rsne)
network->rank *= RANK_RSNE_FACTOR;
else if (best_bss->wpa)
network->rank *= RANK_WPA_FACTOR;
else
network->rank *= RANK_OPEN_FACTOR;
/* We prefer networks with CAP PRIVACY */
if (!(best_bss->capability & IE_BSS_CAP_PRIVACY))
network->rank *= RANK_NO_PRIVACY_FACTOR;
}
static void network_unset_hotspot(struct network *network, void *user_data)