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WNM: Order BSS transmission candidate entries based on preference

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Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2014-11-22 16:33:57 +02:00
parent 093226783d
commit ff2c5758bb
1 changed files with 30 additions and 0 deletions
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30
wpa_supplicant/wnm_sta.c
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@ -586,6 +586,35 @@ send_bss_resp_fail:
}
static int cand_pref_compar(const void *a, const void *b)
{
const struct neighbor_report *aa = a;
const struct neighbor_report *bb = b;
if (!aa->preference_present && !bb->preference_present)
return 0;
if (!aa->preference_present)
return 1;
if (!bb->preference_present)
return -1;
if (bb->preference > aa->preference)
return 1;
if (bb->preference < aa->preference)
return -1;
return 0;
}
static void wnm_sort_cand_list(struct wpa_supplicant *wpa_s)
{
if (!wpa_s->wnm_neighbor_report_elements)
return;
qsort(wpa_s->wnm_neighbor_report_elements,
wpa_s->wnm_num_neighbor_report, sizeof(struct neighbor_report),
cand_pref_compar);
}
static void wnm_dump_cand_list(struct wpa_supplicant *wpa_s)
{
unsigned int i;
@ -707,6 +736,7 @@ static void ieee802_11_rx_bss_trans_mgmt_req(struct wpa_supplicant *wpa_s,
pos += len;
wpa_s->wnm_num_neighbor_report++;
}
wnm_sort_cand_list(wpa_s);
wnm_dump_cand_list(wpa_s);
valid_ms = valid_int * beacon_int * 128 / 125;
wpa_printf(MSG_DEBUG, "WNM: Candidate list valid for %u ms",