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Always record a change of the BSS node's BSSID, even if a desired

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BSSID is set.

In IBSS mode, if the BSS node's BSSID changes, and a desired BSSID
is *not* set, make a RUN->RUN transition to give the driver an
opportunity to reprogram its BSSID filter.  This fixes a bug where
both wlanctl(8) and ifconfig(8) indicated that an interface had
joined a new BSS, but no packets would get through, except in
promiscuous mode, because the hardware still filtered packets based
on the old BSSID.
This commit is contained in:
dyoung 2005-12-08 20:19:49 +00:00
parent da04ad7825
commit 8e41de9845
1 changed files with 14 additions and 8 deletions
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22
sys/net80211/ieee80211_input.c
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@ -1,4 +1,4 @@
/* $NetBSD: ieee80211_input.c,v 1.51 2005/11/23 04:32:12 dyoung Exp $ */
/* $NetBSD: ieee80211_input.c,v 1.52 2005/12/08 20:19:49 dyoung Exp $ */
/*-
* Copyright (c) 2001 Atsushi Onoe
* Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
@ -36,7 +36,7 @@
__FBSDID("$FreeBSD: src/sys/net80211/ieee80211_input.c,v 1.81 2005/08/10 16:22:29 sam Exp $");
#endif
#ifdef __NetBSD__
__KERNEL_RCSID(0, "$NetBSD: ieee80211_input.c,v 1.51 2005/11/23 04:32:12 dyoung Exp $");
__KERNEL_RCSID(0, "$NetBSD: ieee80211_input.c,v 1.52 2005/12/08 20:19:49 dyoung Exp $");
#endif
#include "opt_inet.h"
@ -2045,18 +2045,24 @@ ieee80211_recv_mgmt(struct ieee80211com *ic, struct mbuf *m0,
} else if (ni == ic->ic_bss &&
!IEEE80211_ADDR_EQ(wh->i_addr3,
ni->ni_bssid)) {
/* Mark a change of BSSID. If
* ic_des_bssid is set, ni does
* not now represent a network we
* want to belong to, so start a
* scan.
/* Mark a change of BSSID. If
* ic_des_bssid is set, ni does
* not now represent a network we
* want to belong to, so start a
* scan. Otherwise, make a RUN->RUN
* transition to give the driver
* an opportunity to reprogram its
* BSSID filter.
*/
IEEE80211_ADDR_COPY(ni->ni_bssid, wh->i_addr3);
if (ic->ic_flags & IEEE80211_F_DESBSSID) {
ieee80211_new_state(ic,
IEEE80211_S_SCAN, 0);
return;
} else {
ieee80211_new_state(ic,
IEEE80211_S_RUN, 0);
}
IEEE80211_ADDR_COPY(ni->ni_bssid, wh->i_addr3);
} else {
/*
* Record tsf for potential resync.