diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-01 21:08:52 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-01 21:08:52 (GMT) |
commit | 73287a43cc79ca06629a88d1a199cd283f42456a (patch) | |
tree | acf4456e260115bea77ee31a29f10ce17f0db45c /net/mac80211/mlme.c | |
parent | 251df49db3327c64bf917bfdba94491fde2b4ee0 (diff) | |
parent | 20074f357da4a637430aec2879c9d864c5d2c23c (diff) | |
download | linux-fsl-qoriq-73287a43cc79ca06629a88d1a199cd283f42456a.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
"Highlights (1721 non-merge commits, this has to be a record of some
sort):
1) Add 'random' mode to team driver, from Jiri Pirko and Eric
Dumazet.
2) Make it so that any driver that supports configuration of multiple
MAC addresses can provide the forwarding database add and del
calls by providing a default implementation and hooking that up if
the driver doesn't have an explicit set of handlers. From Vlad
Yasevich.
3) Support GSO segmentation over tunnels and other encapsulating
devices such as VXLAN, from Pravin B Shelar.
4) Support L2 GRE tunnels in the flow dissector, from Michael Dalton.
5) Implement Tail Loss Probe (TLP) detection in TCP, from Nandita
Dukkipati.
6) In the PHY layer, allow supporting wake-on-lan in situations where
the PHY registers have to be written for it to be configured.
Use it to support wake-on-lan in mv643xx_eth.
From Michael Stapelberg.
7) Significantly improve firewire IPV6 support, from YOSHIFUJI
Hideaki.
8) Allow multiple packets to be sent in a single transmission using
network coding in batman-adv, from Martin Hundebøll.
9) Add support for T5 cxgb4 chips, from Santosh Rastapur.
10) Generalize the VXLAN forwarding tables so that there is more
flexibility in configurating various aspects of the endpoints.
From David Stevens.
11) Support RSS and TSO in hardware over GRE tunnels in bxn2x driver,
from Dmitry Kravkov.
12) Zero copy support in nfnelink_queue, from Eric Dumazet and Pablo
Neira Ayuso.
13) Start adding networking selftests.
14) In situations of overload on the same AF_PACKET fanout socket, or
per-cpu packet receive queue, minimize drop by distributing the
load to other cpus/fanouts. From Willem de Bruijn and Eric
Dumazet.
15) Add support for new payload offset BPF instruction, from Daniel
Borkmann.
16) Convert several drivers over to mdoule_platform_driver(), from
Sachin Kamat.
17) Provide a minimal BPF JIT image disassembler userspace tool, from
Daniel Borkmann.
18) Rewrite F-RTO implementation in TCP to match the final
specification of it in RFC4138 and RFC5682. From Yuchung Cheng.
19) Provide netlink socket diag of netlink sockets ("Yo dawg, I hear
you like netlink, so I implemented netlink dumping of netlink
sockets.") From Andrey Vagin.
20) Remove ugly passing of rtnetlink attributes into rtnl_doit
functions, from Thomas Graf.
21) Allow userspace to be able to see if a configuration change occurs
in the middle of an address or device list dump, from Nicolas
Dichtel.
22) Support RFC3168 ECN protection for ipv6 fragments, from Hannes
Frederic Sowa.
23) Increase accuracy of packet length used by packet scheduler, from
Jason Wang.
24) Beginning set of changes to make ipv4/ipv6 fragment handling more
scalable and less susceptible to overload and locking contention,
from Jesper Dangaard Brouer.
25) Get rid of using non-type-safe NLMSG_* macros and use nlmsg_*()
instead. From Hong Zhiguo.
26) Optimize route usage in IPVS by avoiding reference counting where
possible, from Julian Anastasov.
27) Convert IPVS schedulers to RCU, also from Julian Anastasov.
28) Support cpu fanouts in xt_NFQUEUE netfilter target, from Holger
Eitzenberger.
29) Network namespace support for nf_log, ebt_log, xt_LOG, ipt_ULOG,
nfnetlink_log, and nfnetlink_queue. From Gao feng.
30) Implement RFC3168 ECN protection, from Hannes Frederic Sowa.
31) Support several new r8169 chips, from Hayes Wang.
32) Support tokenized interface identifiers in ipv6, from Daniel
Borkmann.
33) Use usbnet_link_change() helper in USB net driver, from Ming Lei.
34) Add 802.1ad vlan offload support, from Patrick McHardy.
35) Support mmap() based netlink communication, also from Patrick
McHardy.
36) Support HW timestamping in mlx4 driver, from Amir Vadai.
37) Rationalize AF_PACKET packet timestamping when transmitting, from
Willem de Bruijn and Daniel Borkmann.
38) Bring parity to what's provided by /proc/net/packet socket dumping
and the info provided by netlink socket dumping of AF_PACKET
sockets. From Nicolas Dichtel.
39) Fix peeking beyond zero sized SKBs in AF_UNIX, from Benjamin
Poirier"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits)
filter: fix va_list build error
af_unix: fix a fatal race with bit fields
bnx2x: Prevent memory leak when cnic is absent
bnx2x: correct reading of speed capabilities
net: sctp: attribute printl with __printf for gcc fmt checks
netlink: kconfig: move mmap i/o into netlink kconfig
netpoll: convert mutex into a semaphore
netlink: Fix skb ref counting.
net_sched: act_ipt forward compat with xtables
mlx4_en: fix a build error on 32bit arches
Revert "bnx2x: allow nvram test to run when device is down"
bridge: avoid OOPS if root port not found
drivers: net: cpsw: fix kernel warn on cpsw irq enable
sh_eth: use random MAC address if no valid one supplied
3c509.c: call SET_NETDEV_DEV for all device types (ISA/ISAPnP/EISA)
tg3: fix to append hardware time stamping flags
unix/stream: fix peeking with an offset larger than data in queue
unix/dgram: fix peeking with an offset larger than data in queue
unix/dgram: peek beyond 0-sized skbs
openvswitch: Remove unneeded ovs_netdev_get_ifindex()
...
Diffstat (limited to 'net/mac80211/mlme.c')
-rw-r--r-- | net/mac80211/mlme.c | 554 |
1 files changed, 310 insertions, 244 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 346ad4c..29620bfc 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -56,7 +56,10 @@ MODULE_PARM_DESC(max_probe_tries, * probe on beacon miss before declaring the connection lost * default to what we want. */ -#define IEEE80211_BEACON_LOSS_COUNT 7 +static int beacon_loss_count = 7; +module_param(beacon_loss_count, int, 0644); +MODULE_PARM_DESC(beacon_loss_count, + "Number of beacon intervals before we decide beacon was lost."); /* * Time the connection can be idle before we probe @@ -87,9 +90,6 @@ MODULE_PARM_DESC(probe_wait_ms, */ #define IEEE80211_SIGNAL_AVE_MIN_COUNT 4 -#define TMR_RUNNING_TIMER 0 -#define TMR_RUNNING_CHANSW 1 - /* * All cfg80211 functions have to be called outside a locked * section so that they can acquire a lock themselves... This @@ -289,6 +289,8 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, } else { /* 40 MHz (and 80 MHz) must be supported for VHT */ ret = IEEE80211_STA_DISABLE_VHT; + /* also mark 40 MHz disabled */ + ret |= IEEE80211_STA_DISABLE_40MHZ; goto out; } @@ -303,12 +305,6 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, channel->band); vht_chandef.center_freq2 = 0; - if (vht_oper->center_freq_seg2_idx) - vht_chandef.center_freq2 = - ieee80211_channel_to_frequency( - vht_oper->center_freq_seg2_idx, - channel->band); - switch (vht_oper->chan_width) { case IEEE80211_VHT_CHANWIDTH_USE_HT: vht_chandef.width = chandef->width; @@ -321,6 +317,10 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, break; case IEEE80211_VHT_CHANWIDTH_80P80MHZ: vht_chandef.width = NL80211_CHAN_WIDTH_80P80; + vht_chandef.center_freq2 = + ieee80211_channel_to_frequency( + vht_oper->center_freq_seg2_idx, + channel->band); break; default: if (verbose) @@ -604,11 +604,11 @@ static void ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata, u8 *pos; u32 cap; struct ieee80211_sta_vht_cap vht_cap; - int i; BUILD_BUG_ON(sizeof(vht_cap) != sizeof(sband->vht_cap)); memcpy(&vht_cap, &sband->vht_cap, sizeof(vht_cap)); + ieee80211_apply_vhtcap_overrides(sdata, &vht_cap); /* determine capability flags */ cap = vht_cap.cap; @@ -631,37 +631,6 @@ static void ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata, cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE))) cap &= ~IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE; - if (!(ap_vht_cap->vht_cap_info & - cpu_to_le32(IEEE80211_VHT_CAP_TXSTBC))) - cap &= ~(IEEE80211_VHT_CAP_RXSTBC_1 | - IEEE80211_VHT_CAP_RXSTBC_3 | - IEEE80211_VHT_CAP_RXSTBC_4); - - for (i = 0; i < 8; i++) { - int shift = i * 2; - u16 mask = IEEE80211_VHT_MCS_NOT_SUPPORTED << shift; - u16 ap_mcs, our_mcs; - - ap_mcs = (le16_to_cpu(ap_vht_cap->supp_mcs.tx_mcs_map) & - mask) >> shift; - our_mcs = (le16_to_cpu(vht_cap.vht_mcs.rx_mcs_map) & - mask) >> shift; - - if (our_mcs == IEEE80211_VHT_MCS_NOT_SUPPORTED) - continue; - - switch (ap_mcs) { - default: - if (our_mcs <= ap_mcs) - break; - /* fall through */ - case IEEE80211_VHT_MCS_NOT_SUPPORTED: - vht_cap.vht_mcs.rx_mcs_map &= cpu_to_le16(~mask); - vht_cap.vht_mcs.rx_mcs_map |= - cpu_to_le16(ap_mcs << shift); - } - } - /* reserve and fill IE */ pos = skb_put(skb, sizeof(struct ieee80211_vht_cap) + 2); ieee80211_ie_build_vht_cap(pos, &vht_cap, cap); @@ -987,6 +956,7 @@ static void ieee80211_chswitch_work(struct work_struct *work) { struct ieee80211_sub_if_data *sdata = container_of(work, struct ieee80211_sub_if_data, u.mgd.chswitch_work); + struct ieee80211_local *local = sdata->local; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; if (!ieee80211_sdata_running(sdata)) @@ -996,21 +966,22 @@ static void ieee80211_chswitch_work(struct work_struct *work) if (!ifmgd->associated) goto out; - sdata->local->_oper_channel = sdata->local->csa_channel; - if (!sdata->local->ops->channel_switch) { + local->_oper_chandef = local->csa_chandef; + + if (!local->ops->channel_switch) { /* call "hw_config" only if doing sw channel switch */ - ieee80211_hw_config(sdata->local, - IEEE80211_CONF_CHANGE_CHANNEL); + ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL); } else { /* update the device channel directly */ - sdata->local->hw.conf.channel = sdata->local->_oper_channel; + local->hw.conf.chandef = local->_oper_chandef; } /* XXX: shouldn't really modify cfg80211-owned data! */ - ifmgd->associated->channel = sdata->local->_oper_channel; + ifmgd->associated->channel = local->_oper_chandef.chan; /* XXX: wait for a beacon first? */ - ieee80211_wake_queues_by_reason(&sdata->local->hw, + ieee80211_wake_queues_by_reason(&local->hw, + IEEE80211_MAX_QUEUE_MAP, IEEE80211_QUEUE_STOP_REASON_CSA); out: ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED; @@ -1038,66 +1009,197 @@ static void ieee80211_chswitch_timer(unsigned long data) { struct ieee80211_sub_if_data *sdata = (struct ieee80211_sub_if_data *) data; - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - - if (sdata->local->quiescing) { - set_bit(TMR_RUNNING_CHANSW, &ifmgd->timers_running); - return; - } - ieee80211_queue_work(&sdata->local->hw, &ifmgd->chswitch_work); + ieee80211_queue_work(&sdata->local->hw, &sdata->u.mgd.chswitch_work); } -void +static void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata, - const struct ieee80211_channel_sw_ie *sw_elem, - struct ieee80211_bss *bss, u64 timestamp) + u64 timestamp, struct ieee802_11_elems *elems) { - struct cfg80211_bss *cbss = - container_of((void *)bss, struct cfg80211_bss, priv); - struct ieee80211_channel *new_ch; + struct ieee80211_local *local = sdata->local; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - int new_freq = ieee80211_channel_to_frequency(sw_elem->new_ch_num, - cbss->channel->band); + struct cfg80211_bss *cbss = ifmgd->associated; + struct ieee80211_bss *bss; struct ieee80211_chanctx *chanctx; + enum ieee80211_band new_band; + int new_freq; + u8 new_chan_no; + u8 count; + u8 mode; + struct ieee80211_channel *new_chan; + struct cfg80211_chan_def new_chandef = {}; + struct cfg80211_chan_def new_vht_chandef = {}; + const struct ieee80211_sec_chan_offs_ie *sec_chan_offs; + const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie; + int secondary_channel_offset = -1; ASSERT_MGD_MTX(ifmgd); - if (!ifmgd->associated) + if (!cbss) return; - if (sdata->local->scanning) + if (local->scanning) return; - /* Disregard subsequent beacons if we are already running a timer - processing a CSA */ - + /* disregard subsequent announcements if we are already processing */ if (ifmgd->flags & IEEE80211_STA_CSA_RECEIVED) return; - new_ch = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq); - if (!new_ch || new_ch->flags & IEEE80211_CHAN_DISABLED) { + sec_chan_offs = elems->sec_chan_offs; + wide_bw_chansw_ie = elems->wide_bw_chansw_ie; + + if (ifmgd->flags & (IEEE80211_STA_DISABLE_HT | + IEEE80211_STA_DISABLE_40MHZ)) { + sec_chan_offs = NULL; + wide_bw_chansw_ie = NULL; + } + + if (ifmgd->flags & IEEE80211_STA_DISABLE_VHT) + wide_bw_chansw_ie = NULL; + + if (elems->ext_chansw_ie) { + if (!ieee80211_operating_class_to_band( + elems->ext_chansw_ie->new_operating_class, + &new_band)) { + sdata_info(sdata, + "cannot understand ECSA IE operating class %d, disconnecting\n", + elems->ext_chansw_ie->new_operating_class); + ieee80211_queue_work(&local->hw, + &ifmgd->csa_connection_drop_work); + } + new_chan_no = elems->ext_chansw_ie->new_ch_num; + count = elems->ext_chansw_ie->count; + mode = elems->ext_chansw_ie->mode; + } else if (elems->ch_switch_ie) { + new_band = cbss->channel->band; + new_chan_no = elems->ch_switch_ie->new_ch_num; + count = elems->ch_switch_ie->count; + mode = elems->ch_switch_ie->mode; + } else { + /* nothing here we understand */ + return; + } + + bss = (void *)cbss->priv; + + new_freq = ieee80211_channel_to_frequency(new_chan_no, new_band); + new_chan = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq); + if (!new_chan || new_chan->flags & IEEE80211_CHAN_DISABLED) { sdata_info(sdata, "AP %pM switches to unsupported channel (%d MHz), disconnecting\n", ifmgd->associated->bssid, new_freq); - ieee80211_queue_work(&sdata->local->hw, + ieee80211_queue_work(&local->hw, + &ifmgd->csa_connection_drop_work); + return; + } + + if (sec_chan_offs) { + secondary_channel_offset = sec_chan_offs->sec_chan_offs; + } else if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT)) { + /* if HT is enabled and the IE not present, it's still HT */ + secondary_channel_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE; + } + + switch (secondary_channel_offset) { + default: + /* secondary_channel_offset was present but is invalid */ + case IEEE80211_HT_PARAM_CHA_SEC_NONE: + cfg80211_chandef_create(&new_chandef, new_chan, + NL80211_CHAN_HT20); + break; + case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: + cfg80211_chandef_create(&new_chandef, new_chan, + NL80211_CHAN_HT40PLUS); + break; + case IEEE80211_HT_PARAM_CHA_SEC_BELOW: + cfg80211_chandef_create(&new_chandef, new_chan, + NL80211_CHAN_HT40MINUS); + break; + case -1: + cfg80211_chandef_create(&new_chandef, new_chan, + NL80211_CHAN_NO_HT); + break; + } + + if (wide_bw_chansw_ie) { + new_vht_chandef.chan = new_chan; + new_vht_chandef.center_freq1 = + ieee80211_channel_to_frequency( + wide_bw_chansw_ie->new_center_freq_seg0, + new_band); + + switch (wide_bw_chansw_ie->new_channel_width) { + default: + /* hmmm, ignore VHT and use HT if present */ + case IEEE80211_VHT_CHANWIDTH_USE_HT: + new_vht_chandef.chan = NULL; + break; + case IEEE80211_VHT_CHANWIDTH_80MHZ: + new_vht_chandef.width = NL80211_CHAN_WIDTH_80; + break; + case IEEE80211_VHT_CHANWIDTH_160MHZ: + new_vht_chandef.width = NL80211_CHAN_WIDTH_160; + break; + case IEEE80211_VHT_CHANWIDTH_80P80MHZ: + /* field is otherwise reserved */ + new_vht_chandef.center_freq2 = + ieee80211_channel_to_frequency( + wide_bw_chansw_ie->new_center_freq_seg1, + new_band); + new_vht_chandef.width = NL80211_CHAN_WIDTH_80P80; + break; + } + if (ifmgd->flags & IEEE80211_STA_DISABLE_80P80MHZ && + new_vht_chandef.width == NL80211_CHAN_WIDTH_80P80) + chandef_downgrade(&new_vht_chandef); + if (ifmgd->flags & IEEE80211_STA_DISABLE_160MHZ && + new_vht_chandef.width == NL80211_CHAN_WIDTH_160) + chandef_downgrade(&new_vht_chandef); + if (ifmgd->flags & IEEE80211_STA_DISABLE_40MHZ && + new_vht_chandef.width > NL80211_CHAN_WIDTH_20) + chandef_downgrade(&new_vht_chandef); + } + + /* if VHT data is there validate & use it */ + if (new_vht_chandef.chan) { + if (!cfg80211_chandef_compatible(&new_vht_chandef, + &new_chandef)) { + sdata_info(sdata, + "AP %pM CSA has inconsistent channel data, disconnecting\n", + ifmgd->associated->bssid); + ieee80211_queue_work(&local->hw, + &ifmgd->csa_connection_drop_work); + return; + } + new_chandef = new_vht_chandef; + } + + if (!cfg80211_chandef_usable(local->hw.wiphy, &new_chandef, + IEEE80211_CHAN_DISABLED)) { + sdata_info(sdata, + "AP %pM switches to unsupported channel (%d MHz, width:%d, CF1/2: %d/%d MHz), disconnecting\n", + ifmgd->associated->bssid, new_freq, + new_chandef.width, new_chandef.center_freq1, + new_chandef.center_freq2); + ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work); return; } ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED; - if (sdata->local->use_chanctx) { + if (local->use_chanctx) { sdata_info(sdata, "not handling channel switch with channel contexts\n"); - ieee80211_queue_work(&sdata->local->hw, + ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work); return; } - mutex_lock(&sdata->local->chanctx_mtx); + mutex_lock(&local->chanctx_mtx); if (WARN_ON(!rcu_access_pointer(sdata->vif.chanctx_conf))) { - mutex_unlock(&sdata->local->chanctx_mtx); + mutex_unlock(&local->chanctx_mtx); return; } chanctx = container_of(rcu_access_pointer(sdata->vif.chanctx_conf), @@ -1105,39 +1207,39 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata, if (chanctx->refcount > 1) { sdata_info(sdata, "channel switch with multiple interfaces on the same channel, disconnecting\n"); - ieee80211_queue_work(&sdata->local->hw, + ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work); - mutex_unlock(&sdata->local->chanctx_mtx); + mutex_unlock(&local->chanctx_mtx); return; } - mutex_unlock(&sdata->local->chanctx_mtx); + mutex_unlock(&local->chanctx_mtx); - sdata->local->csa_channel = new_ch; + local->csa_chandef = new_chandef; - if (sw_elem->mode) - ieee80211_stop_queues_by_reason(&sdata->local->hw, + if (mode) + ieee80211_stop_queues_by_reason(&local->hw, + IEEE80211_MAX_QUEUE_MAP, IEEE80211_QUEUE_STOP_REASON_CSA); - if (sdata->local->ops->channel_switch) { + if (local->ops->channel_switch) { /* use driver's channel switch callback */ struct ieee80211_channel_switch ch_switch = { .timestamp = timestamp, - .block_tx = sw_elem->mode, - .channel = new_ch, - .count = sw_elem->count, + .block_tx = mode, + .chandef = new_chandef, + .count = count, }; - drv_channel_switch(sdata->local, &ch_switch); + drv_channel_switch(local, &ch_switch); return; } /* channel switch handled in software */ - if (sw_elem->count <= 1) - ieee80211_queue_work(&sdata->local->hw, &ifmgd->chswitch_work); + if (count <= 1) + ieee80211_queue_work(&local->hw, &ifmgd->chswitch_work); else mod_timer(&ifmgd->chswitch_timer, - TU_TO_EXP_TIME(sw_elem->count * - cbss->beacon_interval)); + TU_TO_EXP_TIME(count * cbss->beacon_interval)); } static u32 ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata, @@ -1383,6 +1485,7 @@ void ieee80211_dynamic_ps_disable_work(struct work_struct *work) } ieee80211_wake_queues_by_reason(&local->hw, + IEEE80211_MAX_QUEUE_MAP, IEEE80211_QUEUE_STOP_REASON_PS); } @@ -1435,16 +1538,14 @@ void ieee80211_dynamic_ps_enable_work(struct work_struct *work) if ((local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) && !(ifmgd->flags & IEEE80211_STA_NULLFUNC_ACKED)) { - netif_tx_stop_all_queues(sdata->dev); - - if (drv_tx_frames_pending(local)) + if (drv_tx_frames_pending(local)) { mod_timer(&local->dynamic_ps_timer, jiffies + msecs_to_jiffies( local->hw.conf.dynamic_ps_timeout)); - else { + } else { ieee80211_send_nullfunc(local, sdata, 1); /* Flush to get the tx status of nullfunc frame */ - drv_flush(local, false); + ieee80211_flush_queues(local, sdata); } } @@ -1455,9 +1556,6 @@ void ieee80211_dynamic_ps_enable_work(struct work_struct *work) local->hw.conf.flags |= IEEE80211_CONF_PS; ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); } - - if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) - netif_tx_wake_all_queues(sdata->dev); } void ieee80211_dynamic_ps_timer(unsigned long data) @@ -1563,6 +1661,7 @@ static bool ieee80211_sta_wmm_params(struct ieee80211_local *local, params.cw_max = ecw2cw((pos[1] & 0xf0) >> 4); params.cw_min = ecw2cw(pos[1] & 0x0f); params.txop = get_unaligned_le16(pos + 2); + params.acm = acm; params.uapsd = uapsd; mlme_dbg(sdata, @@ -1650,7 +1749,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, bss_conf->assoc_capability, bss->has_erp_value, bss->erp_value); sdata->u.mgd.beacon_timeout = usecs_to_jiffies(ieee80211_tu_to_usec( - IEEE80211_BEACON_LOSS_COUNT * bss_conf->beacon_int)); + beacon_loss_count * bss_conf->beacon_int)); sdata->u.mgd.associated = cbss; memcpy(sdata->u.mgd.bssid, cbss->bssid, ETH_ALEN); @@ -1663,18 +1762,17 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, rcu_read_lock(); ies = rcu_dereference(cbss->ies); if (ies) { - u8 noa[2]; int ret; ret = cfg80211_get_p2p_attr( ies->data, ies->len, IEEE80211_P2P_ATTR_ABSENCE_NOTICE, - noa, sizeof(noa)); + (u8 *) &bss_conf->p2p_noa_attr, + sizeof(bss_conf->p2p_noa_attr)); if (ret >= 2) { - bss_conf->p2p_oppps = noa[1] & 0x80; - bss_conf->p2p_ctwindow = noa[1] & 0x7f; + sdata->u.mgd.p2p_noa_index = + bss_conf->p2p_noa_attr.index; bss_info_changed |= BSS_CHANGED_P2P_PS; - sdata->u.mgd.p2p_noa_index = noa[0]; } } rcu_read_unlock(); @@ -1718,7 +1816,6 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, ieee80211_recalc_smps(sdata); ieee80211_recalc_ps_vif(sdata); - netif_tx_start_all_queues(sdata->dev); netif_carrier_on(sdata->dev); } @@ -1741,22 +1838,6 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, ieee80211_stop_poll(sdata); ifmgd->associated = NULL; - - /* - * we need to commit the associated = NULL change because the - * scan code uses that to determine whether this iface should - * go to/wake up from powersave or not -- and could otherwise - * wake the queues erroneously. - */ - smp_mb(); - - /* - * Thus, we can only afterwards stop the queues -- to account - * for the case where another CPU is finishing a scan at this - * time -- we don't want the scan code to enable queues. - */ - - netif_tx_stop_all_queues(sdata->dev); netif_carrier_off(sdata->dev); /* @@ -1775,7 +1856,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, /* flush out any pending frame (e.g. DELBA) before deauth/disassoc */ if (tx) - drv_flush(local, false); + ieee80211_flush_queues(local, sdata); /* deauthenticate/disassociate now */ if (tx || frame_buf) @@ -1784,7 +1865,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, /* flush out frame */ if (tx) - drv_flush(local, false); + ieee80211_flush_queues(local, sdata); /* clear bssid only after building the needed mgmt frames */ memset(ifmgd->bssid, 0, ETH_ALEN); @@ -1799,12 +1880,15 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, changed |= BSS_CHANGED_ASSOC; sdata->vif.bss_conf.assoc = false; - sdata->vif.bss_conf.p2p_ctwindow = 0; - sdata->vif.bss_conf.p2p_oppps = false; + ifmgd->p2p_noa_index = -1; + memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, + sizeof(sdata->vif.bss_conf.p2p_noa_attr)); - /* on the next assoc, re-program HT parameters */ + /* on the next assoc, re-program HT/VHT parameters */ memset(&ifmgd->ht_capa, 0, sizeof(ifmgd->ht_capa)); memset(&ifmgd->ht_capa_mask, 0, sizeof(ifmgd->ht_capa_mask)); + memset(&ifmgd->vht_capa, 0, sizeof(ifmgd->vht_capa)); + memset(&ifmgd->vht_capa_mask, 0, sizeof(ifmgd->vht_capa_mask)); sdata->ap_power_level = IEEE80211_UNSET_POWER_LEVEL; @@ -1830,8 +1914,6 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, del_timer_sync(&sdata->u.mgd.timer); del_timer_sync(&sdata->u.mgd.chswitch_timer); - sdata->u.mgd.timers_running = 0; - sdata->vif.bss_conf.dtim_period = 0; ifmgd->flags = 0; @@ -1956,7 +2038,7 @@ static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata) ifmgd->probe_timeout = jiffies + msecs_to_jiffies(probe_wait_ms); run_again(ifmgd, ifmgd->probe_timeout); if (sdata->local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) - drv_flush(sdata->local, false); + ieee80211_flush_queues(sdata->local, sdata); } static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata, @@ -1980,12 +2062,15 @@ static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata, goto out; } - if (beacon) + if (beacon) { mlme_dbg_ratelimited(sdata, - "detected beacon loss from AP - probing\n"); + "detected beacon loss from AP (missed %d beacons) - probing\n", + beacon_loss_count); - ieee80211_cqm_rssi_notify(&sdata->vif, - NL80211_CQM_RSSI_BEACON_LOSS_EVENT, GFP_KERNEL); + ieee80211_cqm_rssi_notify(&sdata->vif, + NL80211_CQM_RSSI_BEACON_LOSS_EVENT, + GFP_KERNEL); + } /* * The driver/our work has already reported this event or the @@ -2079,6 +2164,7 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata) true, frame_buf); ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED; ieee80211_wake_queues_by_reason(&sdata->local->hw, + IEEE80211_MAX_QUEUE_MAP, IEEE80211_QUEUE_STOP_REASON_CSA); mutex_unlock(&ifmgd->mtx); @@ -2130,7 +2216,6 @@ void ieee80211_beacon_loss(struct ieee80211_vif *vif) trace_api_beacon_loss(sdata); - WARN_ON(hw->flags & IEEE80211_HW_CONNECTION_MONITOR); sdata->u.mgd.connection_loss = false; ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work); } @@ -2180,7 +2265,7 @@ static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata, u32 tx_flags = 0; pos = mgmt->u.auth.variable; - ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems); + ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), false, &elems); if (!elems.challenge) return; auth_data->expected_transaction = 4; @@ -2445,7 +2530,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, } pos = mgmt->u.assoc_resp.variable; - ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems); + ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), false, &elems); if (!elems.supp_rates) { sdata_info(sdata, "no SuppRates element in AssocResp\n"); @@ -2614,13 +2699,13 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, capab_info, status_code, (u16)(aid & ~(BIT(15) | BIT(14)))); pos = mgmt->u.assoc_resp.variable; - ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems); + ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), false, &elems); if (status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY && - elems.timeout_int && elems.timeout_int_len == 5 && - elems.timeout_int[0] == WLAN_TIMEOUT_ASSOC_COMEBACK) { + elems.timeout_int && + elems.timeout_int->type == WLAN_TIMEOUT_ASSOC_COMEBACK) { u32 tu, ms; - tu = get_unaligned_le32(elems.timeout_int + 1); + tu = le32_to_cpu(elems.timeout_int->value); ms = tu * 1024 / 1000; sdata_info(sdata, "%pM rejected association temporarily; comeback duration %u TU (%u ms)\n", @@ -2669,6 +2754,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, struct ieee80211_channel *channel; bool need_ps = false; + lockdep_assert_held(&sdata->u.mgd.mtx); + if ((sdata->u.mgd.associated && ether_addr_equal(mgmt->bssid, sdata->u.mgd.associated->bssid)) || (sdata->u.mgd.assoc_data && @@ -2683,7 +2770,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, } } - if (elems->ds_params && elems->ds_params_len == 1) + if (elems->ds_params) freq = ieee80211_channel_to_frequency(elems->ds_params[0], rx_status->band); else @@ -2699,7 +2786,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, if (bss) ieee80211_rx_bss_put(local, bss); - if (!sdata->u.mgd.associated) + if (!sdata->u.mgd.associated || + !ether_addr_equal(mgmt->bssid, sdata->u.mgd.associated->bssid)) return; if (need_ps) { @@ -2708,10 +2796,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, mutex_unlock(&local->iflist_mtx); } - if (elems->ch_switch_ie && - memcmp(mgmt->bssid, sdata->u.mgd.associated->bssid, ETH_ALEN) == 0) - ieee80211_sta_process_chanswitch(sdata, elems->ch_switch_ie, - bss, rx_status->mactime); + ieee80211_sta_process_chanswitch(sdata, rx_status->mactime, elems); + } @@ -2736,7 +2822,7 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata, return; ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen, - &elems); + false, &elems); ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems); @@ -2819,7 +2905,7 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, if (ifmgd->assoc_data && ifmgd->assoc_data->need_beacon && ether_addr_equal(mgmt->bssid, ifmgd->assoc_data->bss->bssid)) { ieee802_11_parse_elems(mgmt->u.beacon.variable, - len - baselen, &elems); + len - baselen, false, &elems); ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems); ifmgd->assoc_data->have_beacon = true; @@ -2929,7 +3015,7 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, ncrc = crc32_be(0, (void *)&mgmt->u.beacon.beacon_int, 4); ncrc = ieee802_11_parse_elems_crc(mgmt->u.beacon.variable, - len - baselen, &elems, + len - baselen, false, &elems, care_about_ies, ncrc); if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) { @@ -2961,22 +3047,30 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, } if (sdata->vif.p2p) { - u8 noa[2]; + struct ieee80211_p2p_noa_attr noa = {}; int ret; ret = cfg80211_get_p2p_attr(mgmt->u.beacon.variable, len - baselen, IEEE80211_P2P_ATTR_ABSENCE_NOTICE, - noa, sizeof(noa)); - if (ret >= 2 && sdata->u.mgd.p2p_noa_index != noa[0]) { - bss_conf->p2p_oppps = noa[1] & 0x80; - bss_conf->p2p_ctwindow = noa[1] & 0x7f; + (u8 *) &noa, sizeof(noa)); + if (ret >= 2) { + if (sdata->u.mgd.p2p_noa_index != noa.index) { + /* valid noa_attr and index changed */ + sdata->u.mgd.p2p_noa_index = noa.index; + memcpy(&bss_conf->p2p_noa_attr, &noa, sizeof(noa)); + changed |= BSS_CHANGED_P2P_PS; + /* + * make sure we update all information, the CRC + * mechanism doesn't look at P2P attributes. + */ + ifmgd->beacon_crc_valid = false; + } + } else if (sdata->u.mgd.p2p_noa_index != -1) { + /* noa_attr not found and we had valid noa_attr before */ + sdata->u.mgd.p2p_noa_index = -1; + memset(&bss_conf->p2p_noa_attr, 0, sizeof(bss_conf->p2p_noa_attr)); changed |= BSS_CHANGED_P2P_PS; - sdata->u.mgd.p2p_noa_index = noa[0]; - /* - * make sure we update all information, the CRC - * mechanism doesn't look at P2P attributes. - */ ifmgd->beacon_crc_valid = false; } } @@ -3018,7 +3112,7 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, changed |= BSS_CHANGED_DTIM_PERIOD; } - if (elems.erp_info && elems.erp_info_len >= 1) { + if (elems.erp_info) { erp_valid = true; erp_value = elems.erp_info[0]; } else { @@ -3068,6 +3162,8 @@ void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, enum rx_mgmt_action rma = RX_MGMT_NONE; u8 deauth_buf[IEEE80211_DEAUTH_FRAME_LEN]; u16 fc; + struct ieee802_11_elems elems; + int ies_len; rx_status = (struct ieee80211_rx_status *) skb->cb; mgmt = (struct ieee80211_mgmt *) skb->data; @@ -3097,14 +3193,48 @@ void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, rma = ieee80211_rx_mgmt_assoc_resp(sdata, mgmt, skb->len, &bss); break; case IEEE80211_STYPE_ACTION: - switch (mgmt->u.action.category) { - case WLAN_CATEGORY_SPECTRUM_MGMT: + if (mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT) { + ies_len = skb->len - + offsetof(struct ieee80211_mgmt, + u.action.u.chan_switch.variable); + + if (ies_len < 0) + break; + + ieee802_11_parse_elems( + mgmt->u.action.u.chan_switch.variable, + ies_len, true, &elems); + + if (elems.parse_error) + break; + ieee80211_sta_process_chanswitch(sdata, - &mgmt->u.action.u.chan_switch.sw_elem, - (void *)ifmgd->associated->priv, - rx_status->mactime); - break; + rx_status->mactime, + &elems); + } else if (mgmt->u.action.category == WLAN_CATEGORY_PUBLIC) { + ies_len = skb->len - + offsetof(struct ieee80211_mgmt, + u.action.u.ext_chan_switch.variable); + + if (ies_len < 0) + break; + + ieee802_11_parse_elems( + mgmt->u.action.u.ext_chan_switch.variable, + ies_len, true, &elems); + + if (elems.parse_error) + break; + + /* for the handling code pretend this was also an IE */ + elems.ext_chansw_ie = + &mgmt->u.action.u.ext_chan_switch.data; + + ieee80211_sta_process_chanswitch(sdata, + rx_status->mactime, + &elems); } + break; } mutex_unlock(&ifmgd->mtx); @@ -3140,15 +3270,8 @@ static void ieee80211_sta_timer(unsigned long data) { struct ieee80211_sub_if_data *sdata = (struct ieee80211_sub_if_data *) data; - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - struct ieee80211_local *local = sdata->local; - if (local->quiescing) { - set_bit(TMR_RUNNING_TIMER, &ifmgd->timers_running); - return; - } - - ieee80211_queue_work(&local->hw, &sdata->work); + ieee80211_queue_work(&sdata->local->hw, &sdata->work); } static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, @@ -3500,72 +3623,6 @@ static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata) } } -#ifdef CONFIG_PM -void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata) -{ - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - - /* - * Stop timers before deleting work items, as timers - * could race and re-add the work-items. They will be - * re-established on connection. - */ - del_timer_sync(&ifmgd->conn_mon_timer); - del_timer_sync(&ifmgd->bcn_mon_timer); - - /* - * we need to use atomic bitops for the running bits - * only because both timers might fire at the same - * time -- the code here is properly synchronised. - */ - - cancel_work_sync(&ifmgd->request_smps_work); - - cancel_work_sync(&ifmgd->monitor_work); - cancel_work_sync(&ifmgd->beacon_connection_loss_work); - cancel_work_sync(&ifmgd->csa_connection_drop_work); - if (del_timer_sync(&ifmgd->timer)) - set_bit(TMR_RUNNING_TIMER, &ifmgd->timers_running); - - if (del_timer_sync(&ifmgd->chswitch_timer)) - set_bit(TMR_RUNNING_CHANSW, &ifmgd->timers_running); - cancel_work_sync(&ifmgd->chswitch_work); -} - -void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata) -{ - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; - - mutex_lock(&ifmgd->mtx); - if (!ifmgd->associated) { - mutex_unlock(&ifmgd->mtx); - return; - } - - if (sdata->flags & IEEE80211_SDATA_DISCONNECT_RESUME) { - sdata->flags &= ~IEEE80211_SDATA_DISCONNECT_RESUME; - mlme_dbg(sdata, "driver requested disconnect after resume\n"); - ieee80211_sta_connection_lost(sdata, - ifmgd->associated->bssid, - WLAN_REASON_UNSPECIFIED, - true); - mutex_unlock(&ifmgd->mtx); - return; - } - mutex_unlock(&ifmgd->mtx); - - if (test_and_clear_bit(TMR_RUNNING_TIMER, &ifmgd->timers_running)) - add_timer(&ifmgd->timer); - if (test_and_clear_bit(TMR_RUNNING_CHANSW, &ifmgd->timers_running)) - add_timer(&ifmgd->chswitch_timer); - ieee80211_sta_reset_beacon_monitor(sdata); - - mutex_lock(&sdata->local->mtx); - ieee80211_restart_sta_timer(sdata); - mutex_unlock(&sdata->local->mtx); -} -#endif - /* interface setup */ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata) { @@ -3590,8 +3647,9 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata) ifmgd->flags = 0; ifmgd->powersave = sdata->wdev.ps; - ifmgd->uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; - ifmgd->uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; + ifmgd->uapsd_queues = sdata->local->hw.uapsd_queues; + ifmgd->uapsd_max_sp_len = sdata->local->hw.uapsd_max_sp_len; + ifmgd->p2p_noa_index = -1; mutex_init(&ifmgd->mtx); @@ -4089,6 +4147,9 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; } + if (req->flags & ASSOC_REQ_DISABLE_VHT) + ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; + /* Also disable HT if we don't support it or the AP doesn't use WMM */ sband = local->hw.wiphy->bands[req->bss->channel->band]; if (!sband->ht_cap.ht_supported || @@ -4112,6 +4173,10 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, memcpy(&ifmgd->ht_capa_mask, &req->ht_capa_mask, sizeof(ifmgd->ht_capa_mask)); + memcpy(&ifmgd->vht_capa, &req->vht_capa, sizeof(ifmgd->vht_capa)); + memcpy(&ifmgd->vht_capa_mask, &req->vht_capa_mask, + sizeof(ifmgd->vht_capa_mask)); + if (req->ie && req->ie_len) { memcpy(assoc_data->ie, req->ie, req->ie_len); assoc_data->ie_len = req->ie_len; @@ -4149,7 +4214,8 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, rcu_read_unlock(); if (bss->wmm_used && bss->uapsd_supported && - (sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)) { + (sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD) && + sdata->wmm_acm != 0xff) { assoc_data->uapsd = true; ifmgd->flags |= IEEE80211_STA_UAPSD_ENABLED; } else { |