diff options
author | 2016-04-11 10:41:07 +0300 | |
---|---|---|
committer | 2016-04-13 08:17:18 +0300 | |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/net/mac80211/rx.c | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/net/mac80211/rx.c')
-rw-r--r-- | kernel/net/mac80211/rx.c | 435 |
1 files changed, 227 insertions, 208 deletions
diff --git a/kernel/net/mac80211/rx.c b/kernel/net/mac80211/rx.c index f6f8d9880..0e9e264bc 100644 --- a/kernel/net/mac80211/rx.c +++ b/kernel/net/mac80211/rx.c @@ -32,6 +32,61 @@ #include "wme.h" #include "rate.h" +static inline void ieee80211_rx_stats(struct net_device *dev, u32 len) +{ + struct pcpu_sw_netstats *tstats = this_cpu_ptr(dev->tstats); + + u64_stats_update_begin(&tstats->syncp); + tstats->rx_packets++; + tstats->rx_bytes += len; + u64_stats_update_end(&tstats->syncp); +} + +static u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, + enum nl80211_iftype type) +{ + __le16 fc = hdr->frame_control; + + if (ieee80211_is_data(fc)) { + if (len < 24) /* drop incorrect hdr len (data) */ + return NULL; + + if (ieee80211_has_a4(fc)) + return NULL; + if (ieee80211_has_tods(fc)) + return hdr->addr1; + if (ieee80211_has_fromds(fc)) + return hdr->addr2; + + return hdr->addr3; + } + + if (ieee80211_is_mgmt(fc)) { + if (len < 24) /* drop incorrect hdr len (mgmt) */ + return NULL; + return hdr->addr3; + } + + if (ieee80211_is_ctl(fc)) { + if (ieee80211_is_pspoll(fc)) + return hdr->addr1; + + if (ieee80211_is_back_req(fc)) { + switch (type) { + case NL80211_IFTYPE_STATION: + return hdr->addr2; + case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_AP_VLAN: + return hdr->addr1; + default: + break; /* fall through to the return */ + } + } + } + + return NULL; +} + /* * monitor mode reception * @@ -42,7 +97,7 @@ static struct sk_buff *remove_monitor_info(struct ieee80211_local *local, struct sk_buff *skb, unsigned int rtap_vendor_space) { - if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) { + if (ieee80211_hw_check(&local->hw, RX_INCLUDES_FCS)) { if (likely(skb->len > FCS_LEN)) __pskb_trim(skb, skb->len - FCS_LEN); else { @@ -67,8 +122,7 @@ static inline bool should_drop_frame(struct sk_buff *skb, int present_fcs_len, hdr = (void *)(skb->data + rtap_vendor_space); if (status->flag & (RX_FLAG_FAILED_FCS_CRC | - RX_FLAG_FAILED_PLCP_CRC | - RX_FLAG_AMPDU_IS_ZEROLEN)) + RX_FLAG_FAILED_PLCP_CRC)) return true; if (unlikely(skb->len < 16 + present_fcs_len + rtap_vendor_space)) @@ -100,7 +154,7 @@ ieee80211_rx_radiotap_hdrlen(struct ieee80211_local *local, len = ALIGN(len, 8); len += 8; } - if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) + if (ieee80211_hw_check(&local->hw, SIGNAL_DBM)) len += 1; /* antenna field, if we don't have per-chain info */ @@ -175,7 +229,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, } mpdulen = skb->len; - if (!(has_fcs && (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS))) + if (!(has_fcs && ieee80211_hw_check(&local->hw, RX_INCLUDES_FCS))) mpdulen += FCS_LEN; rthdr = (struct ieee80211_radiotap_header *)skb_push(skb, rtap_len); @@ -229,7 +283,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, } /* IEEE80211_RADIOTAP_FLAGS */ - if (has_fcs && (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)) + if (has_fcs && ieee80211_hw_check(&local->hw, RX_INCLUDES_FCS)) *pos |= IEEE80211_RADIOTAP_F_FCS; if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC)) *pos |= IEEE80211_RADIOTAP_F_BADFCS; @@ -279,7 +333,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, pos += 2; /* IEEE80211_RADIOTAP_DBM_ANTSIGNAL */ - if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM && + if (ieee80211_hw_check(&local->hw, SIGNAL_DBM) && !(status->flag & RX_FLAG_NO_SIGNAL_VAL)) { *pos = status->signal; rthdr->it_present |= @@ -336,10 +390,6 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local, cpu_to_le32(1 << IEEE80211_RADIOTAP_AMPDU_STATUS); put_unaligned_le32(status->ampdu_reference, pos); pos += 4; - if (status->flag & RX_FLAG_AMPDU_REPORT_ZEROLEN) - flags |= IEEE80211_RADIOTAP_AMPDU_REPORT_ZEROLEN; - if (status->flag & RX_FLAG_AMPDU_IS_ZEROLEN) - flags |= IEEE80211_RADIOTAP_AMPDU_IS_ZEROLEN; if (status->flag & RX_FLAG_AMPDU_LAST_KNOWN) flags |= IEEE80211_RADIOTAP_AMPDU_LAST_KNOWN; if (status->flag & RX_FLAG_AMPDU_IS_LAST) @@ -448,7 +498,7 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, * the SKB because it has a bad FCS/PLCP checksum. */ - if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) + if (ieee80211_hw_check(&local->hw, RX_INCLUDES_FCS)) present_fcs_len = FCS_LEN; /* ensure hdr->frame_control and vendor radiotap data are in skb head */ @@ -529,8 +579,7 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, } prev_dev = sdata->dev; - sdata->dev->stats.rx_packets++; - sdata->dev->stats.rx_bytes += skb->len; + ieee80211_rx_stats(sdata->dev, skb->len); } if (prev_dev) { @@ -981,7 +1030,6 @@ static void ieee80211_rx_reorder_ampdu(struct ieee80211_rx_data *rx, struct sk_buff *skb = rx->skb; struct ieee80211_local *local = rx->local; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); struct sta_info *sta = rx->sta; struct tid_ampdu_rx *tid_agg_rx; u16 sc; @@ -1016,10 +1064,6 @@ static void ieee80211_rx_reorder_ampdu(struct ieee80211_rx_data *rx, ack_policy != IEEE80211_QOS_CTL_ACK_POLICY_NORMAL) goto dont_reorder; - /* not actually part of this BA session */ - if (!(status->rx_flags & IEEE80211_RX_RA_MATCH)) - goto dont_reorder; - /* new, potentially un-ordered, ampdu frame - process it */ /* reset session timer */ @@ -1069,18 +1113,16 @@ ieee80211_rx_h_check_dup(struct ieee80211_rx_data *rx) is_multicast_ether_addr(hdr->addr1)) return RX_CONTINUE; - if (rx->sta) { - if (unlikely(ieee80211_has_retry(hdr->frame_control) && - rx->sta->last_seq_ctrl[rx->seqno_idx] == - hdr->seq_ctrl)) { - if (status->rx_flags & IEEE80211_RX_RA_MATCH) { - rx->local->dot11FrameDuplicateCount++; - rx->sta->num_duplicates++; - } - return RX_DROP_UNUSABLE; - } else if (!(status->flag & RX_FLAG_AMSDU_MORE)) { - rx->sta->last_seq_ctrl[rx->seqno_idx] = hdr->seq_ctrl; - } + if (!rx->sta) + return RX_CONTINUE; + + if (unlikely(ieee80211_has_retry(hdr->frame_control) && + rx->sta->last_seq_ctrl[rx->seqno_idx] == hdr->seq_ctrl)) { + I802_DEBUG_INC(rx->local->dot11FrameDuplicateCount); + rx->sta->rx_stats.num_duplicates++; + return RX_DROP_UNUSABLE; + } else if (!(status->flag & RX_FLAG_AMSDU_MORE)) { + rx->sta->last_seq_ctrl[rx->seqno_idx] = hdr->seq_ctrl; } return RX_CONTINUE; @@ -1091,11 +1133,6 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data; - if (unlikely(rx->skb->len < 16)) { - I802_DEBUG_INC(rx->local->rx_handlers_drop_short); - return RX_DROP_MONITOR; - } - /* Drop disallowed frame classes based on STA auth/assoc state; * IEEE 802.11, Chap 5.5. * @@ -1195,11 +1232,13 @@ static void sta_ps_start(struct sta_info *sta) atomic_inc(&ps->num_sta_ps); set_sta_flag(sta, WLAN_STA_PS_STA); - if (!(local->hw.flags & IEEE80211_HW_AP_LINK_PS)) + if (!ieee80211_hw_check(&local->hw, AP_LINK_PS)) drv_sta_notify(local, sdata, STA_NOTIFY_SLEEP, &sta->sta); ps_dbg(sdata, "STA %pM aid %d enters power save mode\n", sta->sta.addr, sta->sta.aid); + ieee80211_clear_fast_xmit(sta); + if (!sta->sta.txq[0]) return; @@ -1236,22 +1275,22 @@ static void sta_ps_end(struct sta_info *sta) ieee80211_sta_ps_deliver_wakeup(sta); } -int ieee80211_sta_ps_transition(struct ieee80211_sta *sta, bool start) +int ieee80211_sta_ps_transition(struct ieee80211_sta *pubsta, bool start) { - struct sta_info *sta_inf = container_of(sta, struct sta_info, sta); + struct sta_info *sta = container_of(pubsta, struct sta_info, sta); bool in_ps; - WARN_ON(!(sta_inf->local->hw.flags & IEEE80211_HW_AP_LINK_PS)); + WARN_ON(!ieee80211_hw_check(&sta->local->hw, AP_LINK_PS)); /* Don't let the same PS state be set twice */ - in_ps = test_sta_flag(sta_inf, WLAN_STA_PS_STA); + in_ps = test_sta_flag(sta, WLAN_STA_PS_STA); if ((start && in_ps) || (!start && !in_ps)) return -EINVAL; if (start) - sta_ps_start(sta_inf); + sta_ps_start(sta); else - sta_ps_end(sta_inf); + sta_ps_end(sta); return 0; } @@ -1265,7 +1304,7 @@ ieee80211_rx_h_uapsd_and_pspoll(struct ieee80211_rx_data *rx) struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb); int tid, ac; - if (!rx->sta || !(status->rx_flags & IEEE80211_RX_RA_MATCH)) + if (!rx->sta) return RX_CONTINUE; if (sdata->vif.type != NL80211_IFTYPE_AP && @@ -1277,7 +1316,7 @@ ieee80211_rx_h_uapsd_and_pspoll(struct ieee80211_rx_data *rx) * uAPSD and PS-Poll frames (the latter shouldn't even come up from * it to mac80211 since they're handled.) */ - if (sdata->local->hw.flags & IEEE80211_HW_AP_LINK_PS) + if (ieee80211_hw_check(&sdata->local->hw, AP_LINK_PS)) return RX_CONTINUE; /* @@ -1357,58 +1396,56 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx) NL80211_IFTYPE_ADHOC); if (ether_addr_equal(bssid, rx->sdata->u.ibss.bssid) && test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { - sta->last_rx = jiffies; + sta->rx_stats.last_rx = jiffies; if (ieee80211_is_data(hdr->frame_control) && !is_multicast_ether_addr(hdr->addr1)) { - sta->last_rx_rate_idx = status->rate_idx; - sta->last_rx_rate_flag = status->flag; - sta->last_rx_rate_vht_flag = status->vht_flag; - sta->last_rx_rate_vht_nss = status->vht_nss; + sta->rx_stats.last_rate_idx = + status->rate_idx; + sta->rx_stats.last_rate_flag = + status->flag; + sta->rx_stats.last_rate_vht_flag = + status->vht_flag; + sta->rx_stats.last_rate_vht_nss = + status->vht_nss; } } } else if (rx->sdata->vif.type == NL80211_IFTYPE_OCB) { - u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len, - NL80211_IFTYPE_OCB); - /* OCB uses wild-card BSSID */ - if (is_broadcast_ether_addr(bssid)) - sta->last_rx = jiffies; + sta->rx_stats.last_rx = jiffies; } else if (!is_multicast_ether_addr(hdr->addr1)) { /* * Mesh beacons will update last_rx when if they are found to * match the current local configuration when processed. */ - sta->last_rx = jiffies; + sta->rx_stats.last_rx = jiffies; if (ieee80211_is_data(hdr->frame_control)) { - sta->last_rx_rate_idx = status->rate_idx; - sta->last_rx_rate_flag = status->flag; - sta->last_rx_rate_vht_flag = status->vht_flag; - sta->last_rx_rate_vht_nss = status->vht_nss; + sta->rx_stats.last_rate_idx = status->rate_idx; + sta->rx_stats.last_rate_flag = status->flag; + sta->rx_stats.last_rate_vht_flag = status->vht_flag; + sta->rx_stats.last_rate_vht_nss = status->vht_nss; } } - if (!(status->rx_flags & IEEE80211_RX_RA_MATCH)) - return RX_CONTINUE; - if (rx->sdata->vif.type == NL80211_IFTYPE_STATION) ieee80211_sta_rx_notify(rx->sdata, hdr); - sta->rx_fragments++; - sta->rx_bytes += rx->skb->len; + sta->rx_stats.fragments++; + sta->rx_stats.bytes += rx->skb->len; if (!(status->flag & RX_FLAG_NO_SIGNAL_VAL)) { - sta->last_signal = status->signal; - ewma_add(&sta->avg_signal, -status->signal); + sta->rx_stats.last_signal = status->signal; + ewma_signal_add(&sta->rx_stats.avg_signal, -status->signal); } if (status->chains) { - sta->chains = status->chains; + sta->rx_stats.chains = status->chains; for (i = 0; i < ARRAY_SIZE(status->chain_signal); i++) { int signal = status->chain_signal[i]; if (!(status->chains & BIT(i))) continue; - sta->chain_signal_last[i] = signal; - ewma_add(&sta->chain_signal_avg[i], -signal); + sta->rx_stats.chain_signal_last[i] = signal; + ewma_signal_add(&sta->rx_stats.chain_signal_avg[i], + -signal); } } @@ -1416,7 +1453,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx) * Change STA power saving mode only at the end of a frame * exchange sequence. */ - if (!(sta->local->hw.flags & IEEE80211_HW_AP_LINK_PS) && + if (!ieee80211_hw_check(&sta->local->hw, AP_LINK_PS) && !ieee80211_has_morefrags(hdr->frame_control) && !(status->rx_flags & IEEE80211_RX_DEFERRED_RELEASE) && (rx->sdata->vif.type == NL80211_IFTYPE_AP || @@ -1468,7 +1505,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx) * Update counter and free packet here to avoid * counting this as a dropped packed. */ - sta->rx_packets++; + sta->rx_stats.packets++; dev_kfree_skb(rx->skb); return RX_QUEUED; } @@ -1517,13 +1554,6 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx) * possible. */ - /* - * No point in finding a key and decrypting if the frame is neither - * addressed to us nor a multicast frame. - */ - if (!(status->rx_flags & IEEE80211_RX_RA_MATCH)) - return RX_CONTINUE; - /* start without a key */ rx->key = NULL; fc = hdr->frame_control; @@ -1657,7 +1687,6 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx) if (unlikely(rx->key->flags & KEY_FLAG_TAINTED)) return RX_DROP_MONITOR; - rx->key->tx_rx_count++; /* TODO: add threshold stuff again */ } else { return RX_DROP_MONITOR; @@ -1725,7 +1754,7 @@ ieee80211_reassemble_add(struct ieee80211_sub_if_data *sdata, entry->seq = seq; entry->rx_queue = rx_queue; entry->last_frag = frag; - entry->ccmp = 0; + entry->check_sequential_pn = false; entry->extra_len = 0; return entry; @@ -1795,7 +1824,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) frag = sc & IEEE80211_SCTL_FRAG; if (is_multicast_ether_addr(hdr->addr1)) { - rx->local->dot11MulticastReceivedFrameCount++; + I802_DEBUG_INC(rx->local->dot11MulticastReceivedFrameCount); goto out_no_led; } @@ -1821,15 +1850,27 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) rx->seqno_idx, &(rx->skb)); if (rx->key && (rx->key->conf.cipher == WLAN_CIPHER_SUITE_CCMP || - rx->key->conf.cipher == WLAN_CIPHER_SUITE_CCMP_256) && + rx->key->conf.cipher == WLAN_CIPHER_SUITE_CCMP_256 || + rx->key->conf.cipher == WLAN_CIPHER_SUITE_GCMP || + rx->key->conf.cipher == WLAN_CIPHER_SUITE_GCMP_256) && ieee80211_has_protected(fc)) { int queue = rx->security_idx; - /* Store CCMP PN so that we can verify that the next - * fragment has a sequential PN value. */ - entry->ccmp = 1; + + /* Store CCMP/GCMP PN so that we can verify that the + * next fragment has a sequential PN value. + */ + entry->check_sequential_pn = true; memcpy(entry->last_pn, rx->key->u.ccmp.rx_pn[queue], IEEE80211_CCMP_PN_LEN); + BUILD_BUG_ON(offsetof(struct ieee80211_key, + u.ccmp.rx_pn) != + offsetof(struct ieee80211_key, + u.gcmp.rx_pn)); + BUILD_BUG_ON(sizeof(rx->key->u.ccmp.rx_pn[queue]) != + sizeof(rx->key->u.gcmp.rx_pn[queue])); + BUILD_BUG_ON(IEEE80211_CCMP_PN_LEN != + IEEE80211_GCMP_PN_LEN); } return RX_QUEUED; } @@ -1844,15 +1885,21 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) return RX_DROP_MONITOR; } - /* Verify that MPDUs within one MSDU have sequential PN values. - * (IEEE 802.11i, 8.3.3.4.5) */ - if (entry->ccmp) { + /* "The receiver shall discard MSDUs and MMPDUs whose constituent + * MPDU PN values are not incrementing in steps of 1." + * see IEEE P802.11-REVmc/D5.0, 12.5.3.4.4, item d (for CCMP) + * and IEEE P802.11-REVmc/D5.0, 12.5.5.4.4, item d (for GCMP) + */ + if (entry->check_sequential_pn) { int i; u8 pn[IEEE80211_CCMP_PN_LEN], *rpn; int queue; + if (!rx->key || (rx->key->conf.cipher != WLAN_CIPHER_SUITE_CCMP && - rx->key->conf.cipher != WLAN_CIPHER_SUITE_CCMP_256)) + rx->key->conf.cipher != WLAN_CIPHER_SUITE_CCMP_256 && + rx->key->conf.cipher != WLAN_CIPHER_SUITE_GCMP && + rx->key->conf.cipher != WLAN_CIPHER_SUITE_GCMP_256)) return RX_DROP_UNUSABLE; memcpy(pn, entry->last_pn, IEEE80211_CCMP_PN_LEN); for (i = IEEE80211_CCMP_PN_LEN - 1; i >= 0; i--) { @@ -1878,7 +1925,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) rx->skb = __skb_dequeue(&entry->skb_list); if (skb_tailroom(rx->skb) < entry->extra_len) { - I802_DEBUG_INC(rx->local->rx_expand_skb_head2); + I802_DEBUG_INC(rx->local->rx_expand_skb_head_defrag); if (unlikely(pskb_expand_head(rx->skb, 0, entry->extra_len, GFP_ATOMIC))) { I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag); @@ -1893,13 +1940,12 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) /* Complete frame has been reassembled - process it now */ status = IEEE80211_SKB_RXCB(rx->skb); - status->rx_flags |= IEEE80211_RX_FRAGMENTED; out: ieee80211_led_rx(rx->local); out_no_led: if (rx->sta) - rx->sta->rx_packets++; + rx->sta->rx_stats.packets++; return RX_CONTINUE; } @@ -2054,18 +2100,15 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx) struct sk_buff *skb, *xmit_skb; struct ethhdr *ehdr = (struct ethhdr *) rx->skb->data; struct sta_info *dsta; - struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb); - - dev->stats.rx_packets++; - dev->stats.rx_bytes += rx->skb->len; skb = rx->skb; xmit_skb = NULL; + ieee80211_rx_stats(dev, skb->len); + if ((sdata->vif.type == NL80211_IFTYPE_AP || sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && !(sdata->flags & IEEE80211_SDATA_DONT_BRIDGE_PACKETS) && - (status->rx_flags & IEEE80211_RX_RA_MATCH) && (sdata->vif.type != NL80211_IFTYPE_AP_VLAN || !sdata->u.vlan.sta)) { if (is_multicast_ether_addr(ehdr->h_dest)) { /* @@ -2121,9 +2164,8 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx) /* deliver to local stack */ skb->protocol = eth_type_trans(skb, dev); memset(skb->cb, 0, sizeof(skb->cb)); - if (!(rx->flags & IEEE80211_RX_REORDER_TIMER) && - rx->local->napi) - napi_gro_receive(rx->local->napi, skb); + if (rx->napi) + napi_gro_receive(rx->napi, skb); else netif_receive_skb(skb); } @@ -2207,7 +2249,6 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx) struct sk_buff *skb = rx->skb, *fwd_skb; struct ieee80211_local *local = rx->local; struct ieee80211_sub_if_data *sdata = rx->sdata; - struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; u16 q, hdrlen; @@ -2238,8 +2279,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx) mesh_rmc_check(rx->sdata, hdr->addr3, mesh_hdr)) return RX_DROP_MONITOR; - if (!ieee80211_is_data(hdr->frame_control) || - !(status->rx_flags & IEEE80211_RX_RA_MATCH)) + if (!ieee80211_is_data(hdr->frame_control)) return RX_CONTINUE; if (!mesh_hdr->ttl) @@ -2330,11 +2370,9 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx) IEEE80211_IFSTA_MESH_CTR_INC(ifmsh, fwded_frames); ieee80211_add_pending_skb(local, fwd_skb); out: - if (is_multicast_ether_addr(hdr->addr1) || - sdata->dev->flags & IFF_PROMISC) + if (is_multicast_ether_addr(hdr->addr1)) return RX_CONTINUE; - else - return RX_DROP_MONITOR; + return RX_DROP_MONITOR; } #endif @@ -2361,7 +2399,7 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx) * for non-QoS-data frames. Here we know it's a data * frame, so count MSDUs. */ - rx->sta->rx_msdu[rx->seqno_idx]++; + rx->sta->rx_stats.msdu[rx->seqno_idx]++; } /* @@ -2395,11 +2433,10 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx) tf->category == WLAN_CATEGORY_TDLS && (tf->action_code == WLAN_TDLS_CHANNEL_SWITCH_REQUEST || tf->action_code == WLAN_TDLS_CHANNEL_SWITCH_RESPONSE)) { - rx->skb->pkt_type = IEEE80211_SDATA_QUEUE_TDLS_CHSW; - skb_queue_tail(&sdata->skb_queue, rx->skb); - ieee80211_queue_work(&rx->local->hw, &sdata->work); + skb_queue_tail(&local->skb_queue_tdls_chsw, rx->skb); + schedule_work(&local->tdls_chsw_work); if (rx->sta) - rx->sta->rx_packets++; + rx->sta->rx_stats.packets++; return RX_QUEUED; } @@ -2445,6 +2482,9 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx, struct sk_buff_head *frames) struct { __le16 control, start_seq_num; } __packed bar_data; + struct ieee80211_event event = { + .type = BAR_RX_EVENT, + }; if (!rx->sta) return RX_DROP_MONITOR; @@ -2460,6 +2500,9 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx, struct sk_buff_head *frames) return RX_DROP_MONITOR; start_seq_num = le16_to_cpu(bar_data.start_seq_num) >> 4; + event.u.ba.tid = tid; + event.u.ba.ssn = start_seq_num; + event.u.ba.sta = &rx->sta->sta; /* reset session timer */ if (tid_agg_rx->timeout) @@ -2472,6 +2515,8 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx, struct sk_buff_head *frames) start_seq_num, frames); spin_unlock(&tid_agg_rx->reorder_lock); + drv_event_callback(rx->local, rx->sdata, &event); + kfree_skb(skb); return RX_QUEUED; } @@ -2552,7 +2597,7 @@ ieee80211_rx_h_mgmt_check(struct ieee80211_rx_data *rx) !(rx->flags & IEEE80211_RX_BEACON_REPORTED)) { int sig = 0; - if (rx->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) + if (ieee80211_hw_check(&rx->local->hw, SIGNAL_DBM)) sig = status->signal; cfg80211_report_obss_beacon(rx->local->hw.wiphy, @@ -2561,9 +2606,6 @@ ieee80211_rx_h_mgmt_check(struct ieee80211_rx_data *rx) rx->flags |= IEEE80211_RX_BEACON_REPORTED; } - if (!(status->rx_flags & IEEE80211_RX_RA_MATCH)) - return RX_DROP_MONITOR; - if (ieee80211_drop_unencrypted_mgmt(rx)) return RX_DROP_UNUSABLE; @@ -2591,9 +2633,6 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT) return RX_DROP_UNUSABLE; - if (!(status->rx_flags & IEEE80211_RX_RA_MATCH)) - return RX_DROP_UNUSABLE; - switch (mgmt->u.action.category) { case WLAN_CATEGORY_HT: /* reject HT action frames from stations not supporting HT */ @@ -2715,8 +2754,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) opmode = mgmt->u.action.u.vht_opmode_notif.operating_mode; ieee80211_vht_handle_opmode(rx->sdata, rx->sta, - opmode, status->band, - false); + opmode, status->band); goto handled; } default: @@ -2859,7 +2897,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) handled: if (rx->sta) - rx->sta->rx_packets++; + rx->sta->rx_stats.packets++; dev_kfree_skb(rx->skb); return RX_QUEUED; @@ -2868,7 +2906,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) skb_queue_tail(&sdata->skb_queue, rx->skb); ieee80211_queue_work(&local->hw, &sdata->work); if (rx->sta) - rx->sta->rx_packets++; + rx->sta->rx_stats.packets++; return RX_QUEUED; } @@ -2889,13 +2927,13 @@ ieee80211_rx_h_userspace_mgmt(struct ieee80211_rx_data *rx) * it transmitted were processed or returned. */ - if (rx->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) + if (ieee80211_hw_check(&rx->local->hw, SIGNAL_DBM)) sig = status->signal; if (cfg80211_rx_mgmt(&rx->sdata->wdev, status->freq, sig, rx->skb->data, rx->skb->len, 0)) { if (rx->sta) - rx->sta->rx_packets++; + rx->sta->rx_stats.packets++; dev_kfree_skb(rx->skb); return RX_QUEUED; } @@ -2954,7 +2992,7 @@ ieee80211_rx_h_action_return(struct ieee80211_rx_data *rx) info->flags = IEEE80211_TX_CTL_TX_OFFCHAN | IEEE80211_TX_INTFL_OFFCHAN_TX_OK | IEEE80211_TX_CTL_NO_CCK_RATE; - if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL) + if (ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) info->hw_queue = local->hw.offchannel_tx_hw_queue; } @@ -3014,12 +3052,11 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_data *rx) skb_queue_tail(&sdata->skb_queue, rx->skb); ieee80211_queue_work(&rx->local->hw, &sdata->work); if (rx->sta) - rx->sta->rx_packets++; + rx->sta->rx_stats.packets++; return RX_QUEUED; } -/* TODO: use IEEE80211_RX_FRAGMENTED */ static void ieee80211_rx_cooked_monitor(struct ieee80211_rx_data *rx, struct ieee80211_rate *rate) { @@ -3077,8 +3114,7 @@ static void ieee80211_rx_cooked_monitor(struct ieee80211_rx_data *rx, } prev_dev = sdata->dev; - sdata->dev->stats.rx_packets++; - sdata->dev->stats.rx_bytes += skb->len; + ieee80211_rx_stats(sdata->dev, skb->len); } if (prev_dev) { @@ -3098,7 +3134,7 @@ static void ieee80211_rx_handlers_result(struct ieee80211_rx_data *rx, case RX_DROP_MONITOR: I802_DEBUG_INC(rx->sdata->local->rx_handlers_drop); if (rx->sta) - rx->sta->rx_dropped++; + rx->sta->rx_stats.dropped++; /* fall through */ case RX_CONTINUE: { struct ieee80211_rate *rate = NULL; @@ -3118,7 +3154,7 @@ static void ieee80211_rx_handlers_result(struct ieee80211_rx_data *rx, case RX_DROP_UNUSABLE: I802_DEBUG_INC(rx->sdata->local->rx_handlers_drop); if (rx->sta) - rx->sta->rx_dropped++; + rx->sta->rx_stats.dropped++; dev_kfree_skb(rx->skb); break; case RX_QUEUED: @@ -3232,7 +3268,7 @@ void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid) /* This is OK -- must be QoS data frame */ .security_idx = tid, .seqno_idx = tid, - .flags = IEEE80211_RX_REORDER_TIMER, + .napi = NULL, /* must be NULL to not have races */ }; struct tid_ampdu_rx *tid_agg_rx; @@ -3246,16 +3282,25 @@ void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid) ieee80211_sta_reorder_release(sta->sdata, tid_agg_rx, &frames); spin_unlock(&tid_agg_rx->reorder_lock); + if (!skb_queue_empty(&frames)) { + struct ieee80211_event event = { + .type = BA_FRAME_TIMEOUT, + .u.ba.tid = tid, + .u.ba.sta = &sta->sta, + }; + drv_event_callback(rx.local, rx.sdata, &event); + } + ieee80211_rx_handlers(&rx, &frames); } /* main receive path */ -static bool prepare_for_handlers(struct ieee80211_rx_data *rx, - struct ieee80211_hdr *hdr) +static bool ieee80211_accept_frame(struct ieee80211_rx_data *rx) { struct ieee80211_sub_if_data *sdata = rx->sdata; struct sk_buff *skb = rx->skb; + struct ieee80211_hdr *hdr = (void *)skb->data; struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); u8 *bssid = ieee80211_get_bssid(hdr, skb->len, sdata->vif.type); int multicast = is_multicast_ether_addr(hdr->addr1); @@ -3264,30 +3309,23 @@ static bool prepare_for_handlers(struct ieee80211_rx_data *rx, case NL80211_IFTYPE_STATION: if (!bssid && !sdata->u.mgd.use_4addr) return false; - if (!multicast && - !ether_addr_equal(sdata->vif.addr, hdr->addr1)) { - if (!(sdata->dev->flags & IFF_PROMISC) || - sdata->u.mgd.use_4addr) - return false; - status->rx_flags &= ~IEEE80211_RX_RA_MATCH; - } - break; + if (multicast) + return true; + return ether_addr_equal(sdata->vif.addr, hdr->addr1); case NL80211_IFTYPE_ADHOC: if (!bssid) return false; if (ether_addr_equal(sdata->vif.addr, hdr->addr2) || ether_addr_equal(sdata->u.ibss.bssid, hdr->addr2)) return false; - if (ieee80211_is_beacon(hdr->frame_control)) { + if (ieee80211_is_beacon(hdr->frame_control)) return true; - } else if (!ieee80211_bssid_match(bssid, sdata->u.ibss.bssid)) { + if (!ieee80211_bssid_match(bssid, sdata->u.ibss.bssid)) return false; - } else if (!multicast && - !ether_addr_equal(sdata->vif.addr, hdr->addr1)) { - if (!(sdata->dev->flags & IFF_PROMISC)) - return false; - status->rx_flags &= ~IEEE80211_RX_RA_MATCH; - } else if (!rx->sta) { + if (!multicast && + !ether_addr_equal(sdata->vif.addr, hdr->addr1)) + return false; + if (!rx->sta) { int rate_idx; if (status->flag & (RX_FLAG_HT | RX_FLAG_VHT)) rate_idx = 0; /* TODO: HT/VHT rates */ @@ -3296,25 +3334,18 @@ static bool prepare_for_handlers(struct ieee80211_rx_data *rx, ieee80211_ibss_rx_no_sta(sdata, bssid, hdr->addr2, BIT(rate_idx)); } - break; + return true; case NL80211_IFTYPE_OCB: if (!bssid) return false; - if (ieee80211_is_beacon(hdr->frame_control)) { + if (!ieee80211_is_data_present(hdr->frame_control)) return false; - } else if (!is_broadcast_ether_addr(bssid)) { - ocb_dbg(sdata, "BSSID mismatch in OCB mode!\n"); + if (!is_broadcast_ether_addr(bssid)) return false; - } else if (!multicast && - !ether_addr_equal(sdata->dev->dev_addr, - hdr->addr1)) { - /* if we are in promisc mode we also accept - * packets not destined for us - */ - if (!(sdata->dev->flags & IFF_PROMISC)) - return false; - rx->flags &= ~IEEE80211_RX_RA_MATCH; - } else if (!rx->sta) { + if (!multicast && + !ether_addr_equal(sdata->dev->dev_addr, hdr->addr1)) + return false; + if (!rx->sta) { int rate_idx; if (status->flag & RX_FLAG_HT) rate_idx = 0; /* TODO: HT rates */ @@ -3323,22 +3354,17 @@ static bool prepare_for_handlers(struct ieee80211_rx_data *rx, ieee80211_ocb_rx_no_sta(sdata, bssid, hdr->addr2, BIT(rate_idx)); } - break; + return true; case NL80211_IFTYPE_MESH_POINT: - if (!multicast && - !ether_addr_equal(sdata->vif.addr, hdr->addr1)) { - if (!(sdata->dev->flags & IFF_PROMISC)) - return false; - - status->rx_flags &= ~IEEE80211_RX_RA_MATCH; - } - break; + if (multicast) + return true; + return ether_addr_equal(sdata->vif.addr, hdr->addr1); case NL80211_IFTYPE_AP_VLAN: case NL80211_IFTYPE_AP: - if (!bssid) { - if (!ether_addr_equal(sdata->vif.addr, hdr->addr1)) - return false; - } else if (!ieee80211_bssid_match(bssid, sdata->vif.addr)) { + if (!bssid) + return ether_addr_equal(sdata->vif.addr, hdr->addr1); + + if (!ieee80211_bssid_match(bssid, sdata->vif.addr)) { /* * Accept public action frames even when the * BSSID doesn't match, this is used for P2P @@ -3350,42 +3376,35 @@ static bool prepare_for_handlers(struct ieee80211_rx_data *rx, return false; if (ieee80211_is_public_action(hdr, skb->len)) return true; - if (!ieee80211_is_beacon(hdr->frame_control)) - return false; - status->rx_flags &= ~IEEE80211_RX_RA_MATCH; - } else if (!ieee80211_has_tods(hdr->frame_control)) { + return ieee80211_is_beacon(hdr->frame_control); + } + + if (!ieee80211_has_tods(hdr->frame_control)) { /* ignore data frames to TDLS-peers */ if (ieee80211_is_data(hdr->frame_control)) return false; /* ignore action frames to TDLS-peers */ if (ieee80211_is_action(hdr->frame_control) && + !is_broadcast_ether_addr(bssid) && !ether_addr_equal(bssid, hdr->addr1)) return false; } - break; + return true; case NL80211_IFTYPE_WDS: if (bssid || !ieee80211_is_data(hdr->frame_control)) return false; - if (!ether_addr_equal(sdata->u.wds.remote_addr, hdr->addr2)) - return false; - break; + return ether_addr_equal(sdata->u.wds.remote_addr, hdr->addr2); case NL80211_IFTYPE_P2P_DEVICE: - if (!ieee80211_is_public_action(hdr, skb->len) && - !ieee80211_is_probe_req(hdr->frame_control) && - !ieee80211_is_probe_resp(hdr->frame_control) && - !ieee80211_is_beacon(hdr->frame_control)) - return false; - if (!ether_addr_equal(sdata->vif.addr, hdr->addr1) && - !multicast) - status->rx_flags &= ~IEEE80211_RX_RA_MATCH; - break; + return ieee80211_is_public_action(hdr, skb->len) || + ieee80211_is_probe_req(hdr->frame_control) || + ieee80211_is_probe_resp(hdr->frame_control) || + ieee80211_is_beacon(hdr->frame_control); default: - /* should never get here */ - WARN_ON_ONCE(1); break; } - return true; + WARN_ON_ONCE(1); + return false; } /* @@ -3399,13 +3418,10 @@ static bool ieee80211_prepare_and_rx_handle(struct ieee80211_rx_data *rx, { struct ieee80211_local *local = rx->local; struct ieee80211_sub_if_data *sdata = rx->sdata; - struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); - struct ieee80211_hdr *hdr = (void *)skb->data; rx->skb = skb; - status->rx_flags |= IEEE80211_RX_RA_MATCH; - if (!prepare_for_handlers(rx, hdr)) + if (!ieee80211_accept_frame(rx)) return false; if (!consume) { @@ -3430,7 +3446,8 @@ static bool ieee80211_prepare_and_rx_handle(struct ieee80211_rx_data *rx, * be called with rcu_read_lock protection. */ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, - struct sk_buff *skb) + struct sk_buff *skb, + struct napi_struct *napi) { struct ieee80211_local *local = hw_to_local(hw); struct ieee80211_sub_if_data *sdata; @@ -3446,9 +3463,10 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, memset(&rx, 0, sizeof(rx)); rx.skb = skb; rx.local = local; + rx.napi = napi; if (ieee80211_is_data(fc) || ieee80211_is_mgmt(fc)) - local->dot11ReceivedFragmentCount++; + I802_DEBUG_INC(local->dot11ReceivedFragmentCount); if (ieee80211_is_mgmt(fc)) { /* drop frame if too short for header */ @@ -3547,7 +3565,8 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, * This is the receive path handler. It is called by a low level driver when an * 802.11 MPDU is received from the hardware. */ -void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb) +void ieee80211_rx_napi(struct ieee80211_hw *hw, struct sk_buff *skb, + struct napi_struct *napi) { struct ieee80211_local *local = hw_to_local(hw); struct ieee80211_rate *rate = NULL; @@ -3646,7 +3665,7 @@ void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb) ieee80211_tpt_led_trig_rx(local, ((struct ieee80211_hdr *)skb->data)->frame_control, skb->len); - __ieee80211_rx_handle_packet(hw, skb); + __ieee80211_rx_handle_packet(hw, skb, napi); rcu_read_unlock(); @@ -3654,7 +3673,7 @@ void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb) drop: kfree_skb(skb); } -EXPORT_SYMBOL(ieee80211_rx); +EXPORT_SYMBOL(ieee80211_rx_napi); /* This is a version of the rx handler that can be called from hard irq * context. Post the skb on the queue and schedule the tasklet */ |