svn commit: r293714 - head/sys/dev/rtwn
Andriy Voskoboinyk
avos at FreeBSD.org
Tue Jan 12 00:12:20 UTC 2016
Author: avos
Date: Tue Jan 12 00:12:18 2016
New Revision: 293714
URL: https://svnweb.freebsd.org/changeset/base/293714
Log:
rtwn: import r290022 (do not filter out control frames in the RX path)
Tested by: kevlo
Reviewed by: kevlo
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D4838
Modified:
head/sys/dev/rtwn/if_rtwn.c
Modified: head/sys/dev/rtwn/if_rtwn.c
==============================================================================
--- head/sys/dev/rtwn/if_rtwn.c Tue Jan 12 00:07:26 2016 (r293713)
+++ head/sys/dev/rtwn/if_rtwn.c Tue Jan 12 00:12:18 2016 (r293714)
@@ -1438,7 +1438,7 @@ rtwn_rx_frame(struct rtwn_softc *sc, str
struct rtwn_rx_data *rx_data, int desc_idx)
{
struct ieee80211com *ic = &sc->sc_ic;
- struct ieee80211_frame *wh;
+ struct ieee80211_frame_min *wh;
struct ieee80211_node *ni;
struct r92c_rx_phystat *phy = NULL;
uint32_t rxdw0, rxdw3;
@@ -1462,7 +1462,8 @@ rtwn_rx_frame(struct rtwn_softc *sc, str
}
pktlen = MS(rxdw0, R92C_RXDW0_PKTLEN);
- if (__predict_false(pktlen < sizeof(*wh) || pktlen > MCLBYTES)) {
+ if (__predict_false(pktlen < sizeof(struct ieee80211_frame_ack) ||
+ pktlen > MCLBYTES)) {
counter_u64_add(ic->ic_ierrors, 1);
return;
}
@@ -1554,10 +1555,13 @@ rtwn_rx_frame(struct rtwn_softc *sc, str
}
RTWN_UNLOCK(sc);
- wh = mtod(m, struct ieee80211_frame *);
+ wh = mtod(m, struct ieee80211_frame_min *);
+ if (m->m_len >= sizeof(*wh))
+ ni = ieee80211_find_rxnode(ic, wh);
+ else
+ ni = NULL;
/* Send the frame to the 802.11 layer. */
- ni = ieee80211_find_rxnode(ic, (struct ieee80211_frame_min *)wh);
if (ni != NULL) {
(void)ieee80211_input(ni, m, rssi - nf, nf);
/* Node is no longer needed. */
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