Fix wrong sequence number wrap in ieee80211_recv_auth().

IEEE 802.11 sequence numbers wrap around at 0xfff, not 0xffff.
ok phessler@ kevlo@

diff --git a/sys/net80211/ieee80211_input.c b/sys/net80211/ieee80211_input.c
index e6a38d6..a2de00f 100644 (file)
--- a/sys/net80211/ieee80211_input.c
+++ b/sys/net80211/ieee80211_input.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: ieee80211_input.c,v 1.231 2021/03/23 12:03:44 stsp Exp $      */
+/*     $OpenBSD: ieee80211_input.c,v 1.232 2021/03/26 10:18:55 stsp Exp $      */
 
 /*-
  * Copyright (c) 2001 Atsushi Onoe
@@ -2040,7 +2040,7 @@ ieee80211_recv_auth(struct ieee80211com *ic, struct mbuf *m,
                        /* XXX hack to workaround calling convention */
                        IEEE80211_SEND_MGMT(ic, ni,
                            IEEE80211_FC0_SUBTYPE_AUTH,
-                           IEEE80211_STATUS_ALG << 16 | ((seq + 1) & 0xffff));
+                           IEEE80211_STATUS_ALG << 16 | ((seq + 1) & 0xfff));
                }
 #endif
                return;