diff options
Diffstat (limited to 'net/mac80211/rx.c')
| -rw-r--r-- | net/mac80211/rx.c | 43 |
1 files changed, 38 insertions, 5 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 96611d5dfadb..a0ca27aeb732 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -115,7 +115,8 @@ static inline bool should_drop_frame(struct sk_buff *skb, int present_fcs_len, if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC | - RX_FLAG_ONLY_MONITOR)) + RX_FLAG_ONLY_MONITOR | + RX_FLAG_NO_PSDU)) return true; if (unlikely(skb->len < 16 + present_fcs_len + rtap_space)) @@ -189,6 +190,15 @@ ieee80211_rx_radiotap_hdrlen(struct ieee80211_local *local, BUILD_BUG_ON(sizeof(struct ieee80211_radiotap_he_mu) != 12); } + if (status->flag & RX_FLAG_NO_PSDU) + len += 1; + + if (status->flag & RX_FLAG_RADIOTAP_LSIG) { + len = ALIGN(len, 2); + len += 4; + BUILD_BUG_ON(sizeof(struct ieee80211_radiotap_lsig) != 4); + } + if (status->chains) { /* antenna and antenna signal fields */ len += 2 * hweight8(status->chains); @@ -279,6 +289,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, struct ieee80211_vendor_radiotap rtap = {}; struct ieee80211_radiotap_he he = {}; struct ieee80211_radiotap_he_mu he_mu = {}; + struct ieee80211_radiotap_lsig lsig = {}; if (status->flag & RX_FLAG_RADIOTAP_HE) { he = *(struct ieee80211_radiotap_he *)skb->data; @@ -291,6 +302,11 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, skb_pull(skb, sizeof(he_mu)); } + if (status->flag & RX_FLAG_RADIOTAP_LSIG) { + lsig = *(struct ieee80211_radiotap_lsig *)skb->data; + skb_pull(skb, sizeof(lsig)); + } + if (status->flag & RX_FLAG_RADIOTAP_VENDOR_DATA) { rtap = *(struct ieee80211_vendor_radiotap *)skb->data; /* rtap.len and rtap.pad are undone immediately */ @@ -549,7 +565,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, if (status->encoding == RX_ENC_HE && status->flag & RX_FLAG_RADIOTAP_HE) { -#define HE_PREP(f, val) cpu_to_le16(FIELD_PREP(IEEE80211_RADIOTAP_HE_##f, val)) +#define HE_PREP(f, val) le16_encode_bits(val, IEEE80211_RADIOTAP_HE_##f) if (status->enc_flags & RX_ENC_FLAG_STBC_MASK) { he.data6 |= HE_PREP(DATA6_NSTS, @@ -630,6 +646,21 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, pos += sizeof(he_mu); } + if (status->flag & RX_FLAG_NO_PSDU) { + rthdr->it_present |= + cpu_to_le32(1 << IEEE80211_RADIOTAP_ZERO_LEN_PSDU); + *pos++ = status->zero_length_psdu_type; + } + + if (status->flag & RX_FLAG_RADIOTAP_LSIG) { + /* ensure 2 byte alignment */ + while ((pos - (u8 *)rthdr) & 1) + pos++; + rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_LSIG); + memcpy(pos, &lsig, sizeof(lsig)); + pos += sizeof(lsig); + } + for_each_set_bit(chain, &chains, IEEE80211_MAX_CHAINS) { *pos++ = status->chain_signal[chain]; *pos++ = chain; @@ -1505,7 +1536,7 @@ static void sta_ps_start(struct sta_info *sta) if (!sta->sta.txq[0]) return; - for (tid = 0; tid < ARRAY_SIZE(sta->sta.txq); tid++) { + for (tid = 0; tid < IEEE80211_NUM_TIDS; tid++) { if (txq_has_queue(sta->sta.txq[tid])) set_bit(tid, &sta->txq_buffered_tids); else @@ -2046,6 +2077,7 @@ ieee80211_reassemble_find(struct ieee80211_sub_if_data *sdata, idx = sdata->fragment_next; for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) { struct ieee80211_hdr *f_hdr; + struct sk_buff *f_skb; idx--; if (idx < 0) @@ -2057,7 +2089,8 @@ ieee80211_reassemble_find(struct ieee80211_sub_if_data *sdata, entry->last_frag + 1 != frag) continue; - f_hdr = (struct ieee80211_hdr *)entry->skb_list.next->data; + f_skb = __skb_peek(&entry->skb_list); + f_hdr = (struct ieee80211_hdr *) f_skb->data; /* * Check ftype and addresses are equal, else check next fragment @@ -2314,7 +2347,7 @@ __ieee80211_data_to_8023(struct ieee80211_rx_data *rx, bool *port_control) if (!sdata->u.mgd.use_4addr) return -1; - else + else if (!ether_addr_equal(hdr->addr1, sdata->vif.addr)) check_port_control = true; } |