Fix number 1:
During network selection (for 'ifconfig join'), give APs which support
11n and 11ac a higher score. VHT implies HT, so 11ac networks receive
2 additional points while 11n-only networks receive one additional point.
Fix number 2:
During AP selection within a given network, we would like to prefer 5GHz APs.
However, this check was incorrectly implemented for drivers which report
RSSI as a percentage, such as iwm(4) or iwx(4). Fix this such that APs with
at least 50% rssi level will be preferred, as was intended. We can use an
already existing function which performs this check correctly instead of
hand-rolling the check.
ok?
diff 15b71cdf8530b1f64fb85d50873b1ff1fad3f0e8 /usr/src
blob - 229636579d3554154733676cc8deb0004f8ce173
file + sys/net80211/ieee80211_node.c
--- sys/net80211/ieee80211_node.c
+++ sys/net80211/ieee80211_node.c
@@ -480,6 +480,12 @@ ieee80211_ess_calculate_score(struct ieee80211com *ic,
ni->ni_rssi > min_5ghz_rssi)
score += 2;
+ /* HT/VHT available */
+ if (ieee80211_node_supports_ht(ni))
+ score++;
+ if (ieee80211_node_supports_vht(ni))
+ score++;
+
/* Boost this AP if it had no auth/assoc failures in the past. */
if (ni->ni_fails == 0)
score += 21;
@@ -493,6 +499,7 @@ ieee80211_ess_calculate_score(struct ieee80211com *ic,
*
* crypto: wpa2 > wpa1 > wep > open
* band: 5 GHz > 2 GHz provided 5 GHz rssi is above threshold
+ * supported standard revisions: 11ac > 11n > 11a/b/g
* rssi: rssi1 > rssi2 as a numeric comparison with a slight
* disadvantage for 2 GHz APs
*
@@ -1413,7 +1420,7 @@ ieee80211_node_choose_bss(struct ieee80211com *ic, int
* (as long as it meets the minimum RSSI threshold) since the 5Ghz band
* is usually less saturated.
*/
- if (selbs5 && selbs5->ni_rssi > min_5ghz_rssi)
+ if (selbs5 && (*ic->ic_node_checkrssi)(ic, selbs5))
selbs = selbs5;
else if (selbs5 && selbs2)
selbs = (selbs5->ni_rssi >= selbs2->ni_rssi ? selbs5 : selbs2);
