diff options
Diffstat (limited to 'freebsd/sys/net80211/ieee80211_output.c')
| -rw-r--r-- | freebsd/sys/net80211/ieee80211_output.c | 108 |
1 files changed, 99 insertions, 9 deletions
diff --git a/freebsd/sys/net80211/ieee80211_output.c b/freebsd/sys/net80211/ieee80211_output.c index 06fca965..57ea67d3 100644 --- a/freebsd/sys/net80211/ieee80211_output.c +++ b/freebsd/sys/net80211/ieee80211_output.c @@ -165,6 +165,7 @@ ieee80211_vap_pkt_send_dest(struct ieee80211vap *vap, struct mbuf *m, * uses any existing value for rcvif to identify the * interface it (might have been) received on. */ + MPASS((m->m_pkthdr.csum_flags & CSUM_SND_TAG) == 0); m->m_pkthdr.rcvif = (void *)ni; mcast = (m->m_flags & (M_MCAST | M_BCAST)) ? 1: 0; @@ -530,6 +531,7 @@ ieee80211_raw_output(struct ieee80211vap *vap, struct ieee80211_node *ni, * that the mbuf has the same node value that * it would if it were going via the normal path. */ + MPASS((m->m_pkthdr.csum_flags & CSUM_SND_TAG) == 0); m->m_pkthdr.rcvif = (void *)ni; /* @@ -606,6 +608,97 @@ ieee80211_validate_frame(struct mbuf *m, return (0); } +static int +ieee80211_validate_rate(struct ieee80211_node *ni, uint8_t rate) +{ + struct ieee80211com *ic = ni->ni_ic; + + if (IEEE80211_IS_HT_RATE(rate)) { + if ((ic->ic_htcaps & IEEE80211_HTC_HT) == 0) + return (EINVAL); + + rate = IEEE80211_RV(rate); + if (rate <= 31) { + if (rate > ic->ic_txstream * 8 - 1) + return (EINVAL); + + return (0); + } + + if (rate == 32) { + if ((ic->ic_htcaps & IEEE80211_HTC_TXMCS32) == 0) + return (EINVAL); + + return (0); + } + + if ((ic->ic_htcaps & IEEE80211_HTC_TXUNEQUAL) == 0) + return (EINVAL); + + switch (ic->ic_txstream) { + case 0: + case 1: + return (EINVAL); + case 2: + if (rate > 38) + return (EINVAL); + + return (0); + case 3: + if (rate > 52) + return (EINVAL); + + return (0); + case 4: + default: + if (rate > 76) + return (EINVAL); + + return (0); + } + } + + if (!ieee80211_isratevalid(ic->ic_rt, rate)) + return (EINVAL); + + return (0); +} + +static int +ieee80211_sanitize_rates(struct ieee80211_node *ni, struct mbuf *m, + const struct ieee80211_bpf_params *params) +{ + int error; + + if (!params) + return (0); /* nothing to do */ + + /* NB: most drivers assume that ibp_rate0 is set (!= 0). */ + if (params->ibp_rate0 != 0) { + error = ieee80211_validate_rate(ni, params->ibp_rate0); + if (error != 0) + return (error); + } else { + /* XXX pre-setup some default (e.g., mgmt / mcast) rate */ + /* XXX __DECONST? */ + (void) m; + } + + if (params->ibp_rate1 != 0 && + (error = ieee80211_validate_rate(ni, params->ibp_rate1)) != 0) + return (error); + + if (params->ibp_rate2 != 0 && + (error = ieee80211_validate_rate(ni, params->ibp_rate2)) != 0) + return (error); + + if (params->ibp_rate3 != 0 && + (error = ieee80211_validate_rate(ni, params->ibp_rate3)) != 0) + return (error); + + return (0); +} + /* * 802.11 output routine. This is (currently) used only to * connect bpf write calls to the 802.11 layer for injecting @@ -720,6 +813,10 @@ ieee80211_output(struct ifnet *ifp, struct mbuf *m, } else M_WME_SETAC(m, WME_AC_BE); + error = ieee80211_sanitize_rates(ni, m, params); + if (error != 0) + senderr(error); + IEEE80211_NODE_STAT(ni, tx_data); if (IEEE80211_IS_MULTICAST(wh->i_addr1)) { IEEE80211_NODE_STAT(ni, tx_mcast); @@ -1700,7 +1797,6 @@ ieee80211_encap(struct ieee80211vap *vap, struct ieee80211_node *ni, * capability; this may also change when we pull * aggregation up into net80211 */ - seqno = ni->ni_txseqs[tid]++; *(uint16_t *)wh->i_seq = htole16(seqno << IEEE80211_SEQ_SEQ_SHIFT); M_SEQNO_SET(m, seqno); @@ -1856,14 +1952,8 @@ ieee80211_fragment(struct ieee80211vap *vap, struct mbuf *m0, whf = mtod(m, struct ieee80211_frame *); memcpy(whf, wh, hdrsize); #ifdef IEEE80211_SUPPORT_MESH - if (vap->iv_opmode == IEEE80211_M_MBSS) { - if (IEEE80211_IS_DSTODS(wh)) - ((struct ieee80211_qosframe_addr4 *) - whf)->i_qos[1] &= ~IEEE80211_QOS_MC; - else - ((struct ieee80211_qosframe *) - whf)->i_qos[1] &= ~IEEE80211_QOS_MC; - } + if (vap->iv_opmode == IEEE80211_M_MBSS) + ieee80211_getqos(wh)[1] &= ~IEEE80211_QOS_MC; #endif *(uint16_t *)&whf->i_seq[0] |= htole16( (fragno & IEEE80211_SEQ_FRAG_MASK) << |