diff options
| author | John W. Linville <linville@tuxdriver.com> | 2011-10-11 21:35:42 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-10-11 21:35:42 +0200 |
| commit | 094daf7db7c47861009899ce23f9177d761e20b0 (patch) | |
| tree | a107065393720b80664157a035b206576e834793 /net | |
| parent | ll_temac: convert to SKB paged frag API. (diff) | |
| parent | ath6kl: fixup merge damage in ath6kl_mgmt_tx (diff) | |
| download | linux-094daf7db7c47861009899ce23f9177d761e20b0.tar.xz linux-094daf7db7c47861009899ce23f9177d761e20b0.zip | |
Merge branch 'master' of git://git.infradead.org/users/linville/wireless-next into for-davem
Conflicts:
Documentation/feature-removal-schedule.txt
Diffstat (limited to 'net')
38 files changed, 1740 insertions, 651 deletions
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c index 117e0d161780..062124cd89cf 100644 --- a/net/bluetooth/af_bluetooth.c +++ b/net/bluetooth/af_bluetooth.c @@ -349,7 +349,7 @@ int bt_sock_stream_recvmsg(struct kiocb *iocb, struct socket *sock, } chunk = min_t(unsigned int, skb->len, size); - if (memcpy_toiovec(msg->msg_iov, skb->data, chunk)) { + if (skb_copy_datagram_iovec(skb, 0, msg->msg_iov, chunk)) { skb_queue_head(&sk->sk_receive_queue, skb); if (!copied) copied = -EFAULT; @@ -361,7 +361,33 @@ int bt_sock_stream_recvmsg(struct kiocb *iocb, struct socket *sock, sock_recv_ts_and_drops(msg, sk, skb); if (!(flags & MSG_PEEK)) { - skb_pull(skb, chunk); + int skb_len = skb_headlen(skb); + + if (chunk <= skb_len) { + __skb_pull(skb, chunk); + } else { + struct sk_buff *frag; + + __skb_pull(skb, skb_len); + chunk -= skb_len; + + skb_walk_frags(skb, frag) { + if (chunk <= frag->len) { + /* Pulling partial data */ + skb->len -= chunk; + skb->data_len -= chunk; + __skb_pull(frag, chunk); + break; + } else if (frag->len) { + /* Pulling all frag data */ + chunk -= frag->len; + skb->len -= frag->len; + skb->data_len -= frag->len; + __skb_pull(frag, frag->len); + } + } + } + if (skb->len) { skb_queue_head(&sk->sk_receive_queue, skb); break; diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c index d9edfe8bf9d6..91bcd3a961ec 100644 --- a/net/bluetooth/bnep/core.c +++ b/net/bluetooth/bnep/core.c @@ -492,7 +492,10 @@ static int bnep_session(void *arg) /* RX */ while ((skb = skb_dequeue(&sk->sk_receive_queue))) { skb_orphan(skb); - bnep_rx_frame(s, skb); + if (!skb_linearize(skb)) + bnep_rx_frame(s, skb); + else + kfree_skb(skb); } if (sk->sk_state != BT_CONNECTED) diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c index 521baa4fe835..7d00ddf9e9dc 100644 --- a/net/bluetooth/cmtp/core.c +++ b/net/bluetooth/cmtp/core.c @@ -302,7 +302,10 @@ static int cmtp_session(void *arg) while ((skb = skb_dequeue(&sk->sk_receive_queue))) { skb_orphan(skb); - cmtp_recv_frame(session, skb); + if (!skb_linearize(skb)) + cmtp_recv_frame(session, skb); + else + kfree_skb(skb); } cmtp_process_transmit(session); diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index c2df7bf1d374..c1c597e3e198 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -56,15 +56,15 @@ static void hci_le_connect(struct hci_conn *conn) conn->sec_level = BT_SECURITY_LOW; memset(&cp, 0, sizeof(cp)); - cp.scan_interval = cpu_to_le16(0x0004); - cp.scan_window = cpu_to_le16(0x0004); + cp.scan_interval = cpu_to_le16(0x0060); + cp.scan_window = cpu_to_le16(0x0030); bacpy(&cp.peer_addr, &conn->dst); cp.peer_addr_type = conn->dst_type; - cp.conn_interval_min = cpu_to_le16(0x0008); - cp.conn_interval_max = cpu_to_le16(0x0100); - cp.supervision_timeout = cpu_to_le16(0x0064); - cp.min_ce_len = cpu_to_le16(0x0001); - cp.max_ce_len = cpu_to_le16(0x0001); + cp.conn_interval_min = cpu_to_le16(0x0028); + cp.conn_interval_max = cpu_to_le16(0x0038); + cp.supervision_timeout = cpu_to_le16(0x002a); + cp.min_ce_len = cpu_to_le16(0x0000); + cp.max_ce_len = cpu_to_le16(0x0000); hci_send_cmd(hdev, HCI_OP_LE_CREATE_CONN, sizeof(cp), &cp); } diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 35083f2aa2ea..d7d96b6b1f0d 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -2174,7 +2174,10 @@ static inline void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff hci_dev_lock(hdev); conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); - if (conn && conn->state == BT_CONNECTED) { + if (!conn) + goto unlock; + + if (conn->state == BT_CONNECTED) { hci_conn_hold(conn); conn->disc_timeout = HCI_PAIRING_TIMEOUT; hci_conn_put(conn); @@ -2194,6 +2197,7 @@ static inline void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff mgmt_pin_code_request(hdev->id, &ev->bdaddr, secure); } +unlock: hci_dev_unlock(hdev); } @@ -2834,19 +2838,17 @@ unlock: static inline void hci_le_adv_report_evt(struct hci_dev *hdev, struct sk_buff *skb) { - struct hci_ev_le_advertising_info *ev; - u8 num_reports; - - num_reports = skb->data[0]; - ev = (void *) &skb->data[1]; + u8 num_reports = skb->data[0]; + void *ptr = &skb->data[1]; hci_dev_lock(hdev); - hci_add_adv_entry(hdev, ev); + while (num_reports--) { + struct hci_ev_le_advertising_info *ev = ptr; - while (--num_reports) { - ev = (void *) (ev->data + ev->length + 1); hci_add_adv_entry(hdev, ev); + + ptr += sizeof(*ev) + ev->length + 1; } hci_dev_unlock(hdev); diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c index b83979c548b2..075a3e920caf 100644 --- a/net/bluetooth/hidp/core.c +++ b/net/bluetooth/hidp/core.c @@ -716,12 +716,18 @@ static int hidp_session(void *arg) while ((skb = skb_dequeue(&ctrl_sk->sk_receive_queue))) { skb_orphan(skb); - hidp_recv_ctrl_frame(session, skb); + if (!skb_linearize(skb)) + hidp_recv_ctrl_frame(session, skb); + else + kfree_skb(skb); } while ((skb = skb_dequeue(&intr_sk->sk_receive_queue))) { skb_orphan(skb); - hidp_recv_intr_frame(session, skb); + if (!skb_linearize(skb)) + hidp_recv_intr_frame(session, skb); + else + kfree_skb(skb); } hidp_process_transmit(session); diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 1611b3544bb1..8cd12917733b 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -1245,7 +1245,7 @@ static void l2cap_drop_acked_frames(struct l2cap_chan *chan) __clear_retrans_timer(chan); } -void l2cap_do_send(struct l2cap_chan *chan, struct sk_buff *skb) +static void l2cap_do_send(struct l2cap_chan *chan, struct sk_buff *skb) { struct hci_conn *hcon = chan->conn->hcon; u16 flags; @@ -1261,7 +1261,7 @@ void l2cap_do_send(struct l2cap_chan *chan, struct sk_buff *skb) hci_send_acl(hcon, skb, flags); } -void l2cap_streaming_send(struct l2cap_chan *chan) +static void l2cap_streaming_send(struct l2cap_chan *chan) { struct sk_buff *skb; u16 control, fcs; @@ -1327,7 +1327,7 @@ static void l2cap_retransmit_one_frame(struct l2cap_chan *chan, u8 tx_seq) l2cap_do_send(chan, tx_skb); } -int l2cap_ertm_send(struct l2cap_chan *chan) +static int l2cap_ertm_send(struct l2cap_chan *chan) { struct sk_buff *skb, *tx_skb; u16 control, fcs; @@ -1465,7 +1465,7 @@ static inline int l2cap_skbuff_fromiovec(struct sock *sk, struct msghdr *msg, in return sent; } -struct sk_buff *l2cap_create_connless_pdu(struct l2cap_chan *chan, struct msghdr *msg, size_t len) +static struct sk_buff *l2cap_create_connless_pdu(struct l2cap_chan *chan, struct msghdr *msg, size_t len) { struct sock *sk = chan->sk; struct l2cap_conn *conn = chan->conn; @@ -1495,7 +1495,7 @@ struct sk_buff *l2cap_create_connless_pdu(struct l2cap_chan *chan, struct msghdr return skb; } -struct sk_buff *l2cap_create_basic_pdu(struct l2cap_chan *chan, struct msghdr *msg, size_t len) +static struct sk_buff *l2cap_create_basic_pdu(struct l2cap_chan *chan, struct msghdr *msg, size_t len) { struct sock *sk = chan->sk; struct l2cap_conn *conn = chan->conn; @@ -1572,7 +1572,7 @@ static struct sk_buff *l2cap_create_iframe_pdu(struct l2cap_chan *chan, return skb; } -int l2cap_sar_segment_sdu(struct l2cap_chan *chan, struct msghdr *msg, size_t len) +static int l2cap_sar_segment_sdu(struct l2cap_chan *chan, struct msghdr *msg, size_t len) { struct sk_buff *skb; struct sk_buff_head sar_queue; @@ -3128,102 +3128,104 @@ static int l2cap_add_to_srej_queue(struct l2cap_chan *chan, struct sk_buff *skb, return 0; } -static int l2cap_ertm_reassembly_sdu(struct l2cap_chan *chan, struct sk_buff *skb, u16 control) +static void append_skb_frag(struct sk_buff *skb, + struct sk_buff *new_frag, struct sk_buff **last_frag) { - struct sk_buff *_skb; - int err; + /* skb->len reflects data in skb as well as all fragments + * skb->data_len reflects only data in fragments + */ + if (!skb_has_frag_list(skb)) + skb_shinfo(skb)->frag_list = new_frag; + + new_frag->next = NULL; + + (*last_frag)->next = new_frag; + *last_frag = new_frag; + + skb->len += new_frag->len; + skb->data_len += new_frag->len; + skb->truesize += new_frag->truesize; +} + +static int l2cap_reassemble_sdu(struct l2cap_chan *chan, struct sk_buff *skb, u16 control) +{ + int err = -EINVAL; switch (control & L2CAP_CTRL_SAR) { case L2CAP_SDU_UNSEGMENTED: - if (test_bit(CONN_SAR_SDU, &chan->conn_state)) - goto drop; + if (chan->sdu) + break; - return chan->ops->recv(chan->data, skb); + err = chan->ops->recv(chan->data, skb); + break; case L2CAP_SDU_START: - if (test_bit(CONN_SAR_SDU, &chan->conn_state)) - goto drop; + if (chan->sdu) + break; chan->sdu_len = get_unaligned_le16(skb->data); + skb_pull(skb, 2); - if (chan->sdu_len > chan->imtu) - goto disconnect; - - chan->sdu = bt_skb_alloc(chan->sdu_len, GFP_ATOMIC); - if (!chan->sdu) - return -ENOMEM; + if (chan->sdu_len > chan->imtu) { + err = -EMSGSIZE; + break; + } - /* pull sdu_len bytes only after alloc, because of Local Busy - * condition we have to be sure that this will be executed - * only once, i.e., when alloc does not fail */ - skb_pull(skb, 2); + if (skb->len >= chan->sdu_len) + break; - memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len); + chan->sdu = skb; + chan->sdu_last_frag = skb; - set_bit(CONN_SAR_SDU, &chan->conn_state); - chan->partial_sdu_len = skb->len; + skb = NULL; + err = 0; break; case L2CAP_SDU_CONTINUE: - if (!test_bit(CONN_SAR_SDU, &chan->conn_state)) - goto disconnect; - if (!chan->sdu) - goto disconnect; + break; - chan->partial_sdu_len += skb->len; - if (chan->partial_sdu_len > chan->sdu_len) - goto drop; + append_skb_frag(chan->sdu, skb, + &chan->sdu_last_frag); + skb = NULL; - memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len); + if (chan->sdu->len >= chan->sdu_len) + break; + err = 0; break; case L2CAP_SDU_END: - if (!test_bit(CONN_SAR_SDU, &chan->conn_state)) - goto disconnect; - if (!chan->sdu) - goto disconnect; - - chan->partial_sdu_len += skb->len; - - if (chan->partial_sdu_len > chan->imtu) - goto drop; + break; - if (chan->partial_sdu_len != chan->sdu_len) - goto drop; + append_skb_frag(chan->sdu, skb, + &chan->sdu_last_frag); + skb = NULL; - memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len); + if (chan->sdu->len != chan->sdu_len) + break; - _skb = skb_clone(chan->sdu, GFP_ATOMIC); - if (!_skb) { - return -ENOMEM; - } + err = chan->ops->recv(chan->data, chan->sdu); - err = chan->ops->recv(chan->data, _skb); - if (err < 0) { - kfree_skb(_skb); - return err; + if (!err) { + /* Reassembly complete */ + chan->sdu = NULL; + chan->sdu_last_frag = NULL; + chan->sdu_len = 0; } - - clear_bit(CONN_SAR_SDU, &chan->conn_state); - - kfree_skb(chan->sdu); break; } - kfree_skb(skb); - return 0; - -drop: - kfree_skb(chan->sdu); - chan->sdu = NULL; + if (err) { + kfree_skb(skb); + kfree_skb(chan->sdu); + chan->sdu = NULL; + chan->sdu_last_frag = NULL; + chan->sdu_len = 0; + } -disconnect: - l2cap_send_disconn_req(chan->conn, chan, ECONNRESET); - kfree_skb(skb); - return 0; + return err; } static void l2cap_ertm_enter_local_busy(struct l2cap_chan *chan) @@ -3277,99 +3279,6 @@ void l2cap_chan_busy(struct l2cap_chan *chan, int busy) } } -static int l2cap_streaming_reassembly_sdu(struct l2cap_chan *chan, struct sk_buff *skb, u16 control) -{ - struct sk_buff *_skb; - int err = -EINVAL; - - /* - * TODO: We have to notify the userland if some data is lost with the - * Streaming Mode. - */ - - switch (control & L2CAP_CTRL_SAR) { - case L2CAP_SDU_UNSEGMENTED: - if (test_bit(CONN_SAR_SDU, &chan->conn_state)) { - kfree_skb(chan->sdu); - break; - } - - err = chan->ops->recv(chan->data, skb); - if (!err) - return 0; - - break; - - case L2CAP_SDU_START: - if (test_bit(CONN_SAR_SDU, &chan->conn_state)) { - kfree_skb(chan->sdu); - break; - } - - chan->sdu_len = get_unaligned_le16(skb->data); - skb_pull(skb, 2); - - if (chan->sdu_len > chan->imtu) { - err = -EMSGSIZE; - break; - } - - chan->sdu = bt_skb_alloc(chan->sdu_len, GFP_ATOMIC); - if (!chan->sdu) { - err = -ENOMEM; - break; - } - - memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len); - - set_bit(CONN_SAR_SDU, &chan->conn_state); - chan->partial_sdu_len = skb->len; - err = 0; - break; - - case L2CAP_SDU_CONTINUE: - if (!test_bit(CONN_SAR_SDU, &chan->conn_state)) - break; - - memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len); - - chan->partial_sdu_len += skb->len; - if (chan->partial_sdu_len > chan->sdu_len) - kfree_skb(chan->sdu); - else - err = 0; - - break; - - case L2CAP_SDU_END: - if (!test_bit(CONN_SAR_SDU, &chan->conn_state)) - break; - - memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len); - - clear_bit(CONN_SAR_SDU, &chan->conn_state); - chan->partial_sdu_len += skb->len; - - if (chan->partial_sdu_len > chan->imtu) - goto drop; - - if (chan->partial_sdu_len == chan->sdu_len) { - _skb = skb_clone(chan->sdu, GFP_ATOMIC); - err = chan->ops->recv(chan->data, _skb); - if (err < 0) - kfree_skb(_skb); - } - err = 0; - -drop: - kfree_skb(chan->sdu); - break; - } - - kfree_skb(skb); - return err; -} - static void l2cap_check_srej_gap(struct l2cap_chan *chan, u8 tx_seq) { struct sk_buff *skb; @@ -3384,7 +3293,7 @@ static void l2cap_check_srej_gap(struct l2cap_chan *chan, u8 tx_seq) skb = skb_dequeue(&chan->srej_q); control = bt_cb(skb)->sar << L2CAP_CTRL_SAR_SHIFT; - err = l2cap_ertm_reassembly_sdu(chan, skb, control); + err = l2cap_reassemble_sdu(chan, skb, control); if (err < 0) { l2cap_send_disconn_req(chan->conn, chan, ECONNRESET); @@ -3544,7 +3453,7 @@ expected: return 0; } - err = l2cap_ertm_reassembly_sdu(chan, skb, rx_control); + err = l2cap_reassemble_sdu(chan, skb, rx_control); chan->buffer_seq = (chan->buffer_seq + 1) % 64; if (err < 0) { l2cap_send_disconn_req(chan->conn, chan, ECONNRESET); @@ -3860,12 +3769,20 @@ static inline int l2cap_data_channel(struct l2cap_conn *conn, u16 cid, struct sk tx_seq = __get_txseq(control); - if (chan->expected_tx_seq == tx_seq) - chan->expected_tx_seq = (chan->expected_tx_seq + 1) % 64; - else - chan->expected_tx_seq = (tx_seq + 1) % 64; + if (chan->expected_tx_seq != tx_seq) { + /* Frame(s) missing - must discard partial SDU */ + kfree_skb(chan->sdu); + chan->sdu = NULL; + chan->sdu_last_frag = NULL; + chan->sdu_len = 0; - l2cap_streaming_reassembly_sdu(chan, skb, control); + /* TODO: Notify userland of missing data */ + } + + chan->expected_tx_seq = (tx_seq + 1) % 64; + + if (l2cap_reassemble_sdu(chan, skb, control) == -EMSGSIZE) + l2cap_send_disconn_req(chan->conn, chan, ECONNRESET); goto done; diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c index 5ba3f6df665c..38b618c96de6 100644 --- a/net/bluetooth/rfcomm/core.c +++ b/net/bluetooth/rfcomm/core.c @@ -1853,7 +1853,10 @@ static inline void rfcomm_process_rx(struct rfcomm_session *s) /* Get data directly from socket receive queue without copying it. */ while ((skb = skb_dequeue(&sk->sk_receive_queue))) { skb_orphan(skb); - rfcomm_recv_frame(s, skb); + if (!skb_linearize(skb)) + rfcomm_recv_frame(s, skb); + else + kfree_skb(skb); } if (sk->sk_state == BT_CLOSED) { diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig index d1886b59bec4..7d3b438755f0 100644 --- a/net/mac80211/Kconfig +++ b/net/mac80211/Kconfig @@ -225,6 +225,18 @@ config MAC80211_VERBOSE_MHWMP_DEBUG Do not select this option. +config MAC80211_VERBOSE_TDLS_DEBUG + bool "Verbose TDLS debugging" + depends on MAC80211_DEBUG_MENU + ---help--- + Selecting this option causes mac80211 to print out very + verbose TDLS selection debugging messages (when mac80211 + is a TDLS STA). + It should not be selected on production systems as those + messages are remotely triggerable. + + Do not select this option. + config MAC80211_DEBUG_COUNTERS bool "Extra statistics for TX/RX debugging" depends on MAC80211_DEBUG_MENU diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c index 7c366dfe8da9..97f33588b65f 100644 --- a/net/mac80211/agg-rx.c +++ b/net/mac80211/agg-rx.c @@ -223,7 +223,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, status = WLAN_STATUS_REQUEST_DECLINED; - if (test_sta_flags(sta, WLAN_STA_BLOCK_BA)) { + if (test_sta_flag(sta, WLAN_STA_BLOCK_BA)) { #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "Suspend in progress. " "Denying ADDBA request\n"); diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index 3cef5a7281cb..2ac033989e01 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -382,7 +382,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, sdata->vif.type != NL80211_IFTYPE_AP) return -EINVAL; - if (test_sta_flags(sta, WLAN_STA_BLOCK_BA)) { + if (test_sta_flag(sta, WLAN_STA_BLOCK_BA)) { #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "BA sessions blocked. " "Denying BA session request\n"); diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 9b1a95e1f56a..55ee5a31756f 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -12,6 +12,7 @@ #include <linux/slab.h> #include <net/net_namespace.h> #include <linux/rcupdate.h> +#include <linux/if_ether.h> #include <net/cfg80211.h> #include "ieee80211_i.h" #include "driver-ops.h" @@ -667,7 +668,6 @@ static void sta_apply_parameters(struct ieee80211_local *local, struct sta_info *sta, struct station_parameters *params) { - unsigned long flags; u32 rates; int i, j; struct ieee80211_supported_band *sband; @@ -676,46 +676,58 @@ static void sta_apply_parameters(struct ieee80211_local *local, sband = local->hw.wiphy->bands[local->oper_channel->band]; - spin_lock_irqsave(&sta->flaglock, flags); mask = params->sta_flags_mask; set = params->sta_flags_set; if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { - sta->flags &= ~WLAN_STA_AUTHORIZED; if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) - sta->flags |= WLAN_STA_AUTHORIZED; + set_sta_flag(sta, WLAN_STA_AUTHORIZED); + else + clear_sta_flag(sta, WLAN_STA_AUTHORIZED); } if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { - sta->flags &= ~WLAN_STA_SHORT_PREAMBLE; if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) - sta->flags |= WLAN_STA_SHORT_PREAMBLE; + set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); + else + clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); } if (mask & BIT(NL80211_STA_FLAG_WME)) { - sta->flags &= ~WLAN_STA_WME; - sta->sta.wme = false; if (set & BIT(NL80211_STA_FLAG_WME)) { - sta->flags |= WLAN_STA_WME; + set_sta_flag(sta, WLAN_STA_WME); sta->sta.wme = true; + } else { + clear_sta_flag(sta, WLAN_STA_WME); + sta->sta.wme = false; } } if (mask & BIT(NL80211_STA_FLAG_MFP)) { - sta->flags &= ~WLAN_STA_MFP; if (set & BIT(NL80211_STA_FLAG_MFP)) - sta->flags |= WLAN_STA_MFP; + set_sta_flag(sta, WLAN_STA_MFP); + else + clear_sta_flag(sta, WLAN_STA_MFP); } if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) { - sta->flags &= ~WLAN_STA_AUTH; if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) - sta->flags |= WLAN_STA_AUTH; + set_sta_flag(sta, WLAN_STA_AUTH); + else + clear_sta_flag(sta, WLAN_STA_AUTH); } - spin_unlock_irqrestore(&sta->flaglock, flags); - sta->sta.uapsd_queues = params->uapsd_queues; - sta->sta.max_sp = params->max_sp; + if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { + if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) + set_sta_flag(sta, WLAN_STA_TDLS_PEER); + else + clear_sta_flag(sta, WLAN_STA_TDLS_PEER); + } + + if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { + sta->sta.uapsd_queues = params->uapsd_queues; + sta->sta.max_sp = params->max_sp; + } /* * cfg80211 validates this (1-2007) and allows setting the AID @@ -806,10 +818,17 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, if (!sta) return -ENOMEM; - sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC; + set_sta_flag(sta, WLAN_STA_AUTH); + set_sta_flag(sta, WLAN_STA_ASSOC); sta_apply_parameters(local, sta, params); + /* Only TDLS-supporting stations can add TDLS peers */ + if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && + !((wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) && + sdata->vif.type == NL80211_IFTYPE_STATION)) + return -ENOTSUPP; + rate_control_rate_init(sta); layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || @@ -862,6 +881,14 @@ static int ieee80211_change_station(struct wiphy *wiphy, return -ENOENT; } + /* The TDLS bit cannot be toggled after the STA was added */ + if ((params->sta_flags_mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) && + !!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) != + !!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { + rcu_read_unlock(); + return -EINVAL; + } + if (params->vlan && params->vlan != sta->sdata->dev) { vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); @@ -2126,6 +2153,323 @@ static int ieee80211_set_rekey_data(struct wiphy *wiphy, return 0; } +static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb) +{ + u8 *pos = (void *)skb_put(skb, 7); + + *pos++ = WLAN_EID_EXT_CAPABILITY; + *pos++ = 5; /* len */ + *pos++ = 0x0; + *pos++ = 0x0; + *pos++ = 0x0; + *pos++ = 0x0; + *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED; +} + +static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + u16 capab; + + capab = 0; + if (local->oper_channel->band != IEEE80211_BAND_2GHZ) + return capab; + + if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)) + capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; + if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)) + capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; + + return capab; +} + +static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr, + u8 *peer, u8 *bssid) +{ + struct ieee80211_tdls_lnkie *lnkid; + + lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie)); + + lnkid->ie_type = WLAN_EID_LINK_ID; + lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2; + + memcpy(lnkid->bssid, bssid, ETH_ALEN); + memcpy(lnkid->init_sta, src_addr, ETH_ALEN); + memcpy(lnkid->resp_sta, peer, ETH_ALEN); +} + +static int +ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev, + u8 *peer, u8 action_code, u8 dialog_token, + u16 status_code, struct sk_buff *skb) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_tdls_data *tf; + + tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u)); + + memcpy(tf->da, peer, ETH_ALEN); + memcpy(tf->sa, sdata->vif.addr, ETH_ALEN); + tf->ether_type = cpu_to_be16(ETH_P_TDLS); + tf->payload_type = WLAN_TDLS_SNAP_RFTYPE; + + switch (action_code) { + case WLAN_TDLS_SETUP_REQUEST: + tf->category = WLAN_CATEGORY_TDLS; + tf->action_code = WLAN_TDLS_SETUP_REQUEST; + + skb_put(skb, sizeof(tf->u.setup_req)); + tf->u.setup_req.dialog_token = dialog_token; + tf->u.setup_req.capability = + cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); + + ieee80211_add_srates_ie(&sdata->vif, skb); + ieee80211_add_ext_srates_ie(&sdata->vif, skb); + ieee80211_tdls_add_ext_capab(skb); + break; + case WLAN_TDLS_SETUP_RESPONSE: + tf->category = WLAN_CATEGORY_TDLS; + tf->action_code = WLAN_TDLS_SETUP_RESPONSE; + + skb_put(skb, sizeof(tf->u.setup_resp)); + tf->u.setup_resp.status_code = cpu_to_le16(status_code); + tf->u.setup_resp.dialog_token = dialog_token; + tf->u.setup_resp.capability = + cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); + + ieee80211_add_srates_ie(&sdata->vif, skb); + ieee80211_add_ext_srates_ie(&sdata->vif, skb); + ieee80211_tdls_add_ext_capab(skb); + break; + case WLAN_TDLS_SETUP_CONFIRM: + tf->category = WLAN_CATEGORY_TDLS; + tf->action_code = WLAN_TDLS_SETUP_CONFIRM; + + skb_put(skb, sizeof(tf->u.setup_cfm)); + tf->u.setup_cfm.status_code = cpu_to_le16(status_code); + tf->u.setup_cfm.dialog_token = dialog_token; + break; + case WLAN_TDLS_TEARDOWN: + tf->category = WLAN_CATEGORY_TDLS; + tf->action_code = WLAN_TDLS_TEARDOWN; + + skb_put(skb, sizeof(tf->u.teardown)); + tf->u.teardown.reason_code = cpu_to_le16(status_code); + break; + case WLAN_TDLS_DISCOVERY_REQUEST: + tf->category = WLAN_CATEGORY_TDLS; + tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST; + + skb_put(skb, sizeof(tf->u.discover_req)); + tf->u.discover_req.dialog_token = dialog_token; + break; + default: + return -EINVAL; + } + + return 0; +} + +static int +ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev, + u8 *peer, u8 action_code, u8 dialog_token, + u16 status_code, struct sk_buff *skb) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_mgmt *mgmt; + + mgmt = (void *)skb_put(skb, 24); + memset(mgmt, 0, 24); + memcpy(mgmt->da, peer, ETH_ALEN); + memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); + memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN); + + mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_ACTION); + + switch (action_code) { + case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: + skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp)); + mgmt->u.action.category = WLAN_CATEGORY_PUBLIC; + mgmt->u.action.u.tdls_discover_resp.action_code = + WLAN_PUB_ACTION_TDLS_DISCOVER_RES; + mgmt->u.action.u.tdls_discover_resp.dialog_token = + dialog_token; + mgmt->u.action.u.tdls_discover_resp.capability = + cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); + + ieee80211_add_srates_ie(&sdata->vif, skb); + ieee80211_add_ext_srates_ie(&sdata->vif, skb); + ieee80211_tdls_add_ext_capab(skb); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, + u8 *peer, u8 action_code, u8 dialog_token, + u16 status_code, const u8 *extra_ies, + size_t extra_ies_len) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_local *local = sdata->local; + struct ieee80211_tx_info *info; + struct sk_buff *skb = NULL; + bool send_direct; + int ret; + + if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) + return -ENOTSUPP; + + /* make sure we are in managed mode, and associated */ + if (sdata->vif.type != NL80211_IFTYPE_STATION || + !sdata->u.mgd.associated) + return -EINVAL; + +#ifdef CONFIG_MAC80211_VERBOSE_TDLS_DEBUG + printk(KERN_DEBUG "TDLS mgmt action %d peer %pM\n", action_code, peer); +#endif + + skb = dev_alloc_skb(local->hw.extra_tx_headroom + + max(sizeof(struct ieee80211_mgmt), + sizeof(struct ieee80211_tdls_data)) + + 50 + /* supported rates */ + 7 + /* ext capab */ + extra_ies_len + + sizeof(struct ieee80211_tdls_lnkie)); + if (!skb) + return -ENOMEM; + + info = IEEE80211_SKB_CB(skb); + skb_reserve(skb, local->hw.extra_tx_headroom); + + switch (action_code) { + case WLAN_TDLS_SETUP_REQUEST: + case WLAN_TDLS_SETUP_RESPONSE: + case WLAN_TDLS_SETUP_CONFIRM: + case WLAN_TDLS_TEARDOWN: + case WLAN_TDLS_DISCOVERY_REQUEST: + ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer, + action_code, dialog_token, + status_code, skb); + send_direct = false; + break; + case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: + ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code, + dialog_token, status_code, + skb); + send_direct = true; + break; + default: + ret = -ENOTSUPP; + break; + } + + if (ret < 0) + goto fail; + + if (extra_ies_len) + memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len); + + /* the TDLS link IE is always added last */ + switch (action_code) { + case WLAN_TDLS_SETUP_REQUEST: + case WLAN_TDLS_SETUP_CONFIRM: + case WLAN_TDLS_TEARDOWN: + case WLAN_TDLS_DISCOVERY_REQUEST: + /* we are the initiator */ + ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer, + sdata->u.mgd.bssid); + break; + case WLAN_TDLS_SETUP_RESPONSE: + case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: + /* we are the responder */ + ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr, + sdata->u.mgd.bssid); + break; + default: + ret = -ENOTSUPP; + goto fail; + } + + if (send_direct) { + ieee80211_tx_skb(sdata, skb); + return 0; + } + + /* + * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise + * we should default to AC_VI. + */ + switch (action_code) { + case WLAN_TDLS_SETUP_REQUEST: + case WLAN_TDLS_SETUP_RESPONSE: + skb_set_queue_mapping(skb, IEEE80211_AC_BK); + skb->priority = 2; + break; + default: + skb_set_queue_mapping(skb, IEEE80211_AC_VI); + skb->priority = 5; + break; + } + + /* disable bottom halves when entering the Tx path */ + local_bh_disable(); + ret = ieee80211_subif_start_xmit(skb, dev); + local_bh_enable(); + + return ret; + +fail: + dev_kfree_skb(skb); + return ret; +} + +static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, + u8 *peer, enum nl80211_tdls_operation oper) +{ + struct sta_info *sta; + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + + if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) + return -ENOTSUPP; + + if (sdata->vif.type != NL80211_IFTYPE_STATION) + return -EINVAL; + +#ifdef CONFIG_MAC80211_VERBOSE_TDLS_DEBUG + printk(KERN_DEBUG "TDLS oper %d peer %pM\n", oper, peer); +#endif + + switch (oper) { + case NL80211_TDLS_ENABLE_LINK: + rcu_read_lock(); + sta = sta_info_get(sdata, peer); + if (!sta) { + rcu_read_unlock(); + return -ENOLINK; + } + + set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH); + rcu_read_unlock(); + break; + case NL80211_TDLS_DISABLE_LINK: + return sta_info_destroy_addr(sdata, peer); + case NL80211_TDLS_TEARDOWN: + case NL80211_TDLS_SETUP: + case NL80211_TDLS_DISCOVERY_REQ: + /* We don't support in-driver setup/teardown/discovery */ + return -ENOTSUPP; + default: + return -ENOTSUPP; + } + + return 0; +} + struct cfg80211_ops mac80211_config_ops = { .add_virtual_intf = ieee80211_add_iface, .del_virtual_intf = ieee80211_del_iface, @@ -2189,4 +2533,6 @@ struct cfg80211_ops mac80211_config_ops = { .set_ringparam = ieee80211_set_ringparam, .get_ringparam = ieee80211_get_ringparam, .set_rekey_data = ieee80211_set_rekey_data, + .tdls_oper = ieee80211_tdls_oper, + .tdls_mgmt = ieee80211_tdls_mgmt, }; diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c index a01d2137fddc..c5f341798c16 100644 --- a/net/mac80211/debugfs_sta.c +++ b/net/mac80211/debugfs_sta.c @@ -56,19 +56,22 @@ STA_FILE(last_signal, last_signal, D); static ssize_t sta_flags_read(struct file *file, char __user *userbuf, size_t count, loff_t *ppos) { - char buf[100]; + char buf[121]; struct sta_info *sta = file->private_data; - u32 staflags = get_sta_flags(sta); - int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s", - staflags & WLAN_STA_AUTH ? "AUTH\n" : "", - staflags & WLAN_STA_ASSOC ? "ASSOC\n" : "", - staflags & WLAN_STA_PS_STA ? "PS (sta)\n" : "", - staflags & WLAN_STA_PS_DRIVER ? "PS (driver)\n" : "", - staflags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "", - staflags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "", - staflags & WLAN_STA_WME ? "WME\n" : "", - staflags & WLAN_STA_WDS ? "WDS\n" : "", - staflags & WLAN_STA_MFP ? "MFP\n" : ""); + +#define TEST(flg) \ + test_sta_flag(sta, WLAN_STA_##flg) ? #flg "\n" : "" + + int res = scnprintf(buf, sizeof(buf), + "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s", + TEST(AUTH), TEST(ASSOC), TEST(PS_STA), + TEST(PS_DRIVER), TEST(AUTHORIZED), + TEST(SHORT_PREAMBLE), TEST(ASSOC_AP), + TEST(WME), TEST(WDS), TEST(CLEAR_PS_FILT), + TEST(MFP), TEST(BLOCK_BA), TEST(PSPOLL), + TEST(UAPSD), TEST(SP), TEST(TDLS_PEER), + TEST(TDLS_PEER_AUTH)); +#undef TEST return simple_read_from_buffer(userbuf, count, ppos, buf, res); } STA_OPS(flags); @@ -78,8 +81,14 @@ static ssize_t sta_num_ps_buf_frames_read(struct file *file, size_t count, loff_t *ppos) { struct sta_info *sta = file->private_data; - return mac80211_format_buffer(userbuf, count, ppos, "%u\n", - skb_queue_len(&sta->ps_tx_buf)); + char buf[17*IEEE80211_NUM_ACS], *p = buf; + int ac; + + for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) + p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac, + skb_queue_len(&sta->ps_tx_buf[ac]) + + skb_queue_len(&sta->tx_filtered[ac])); + return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); } STA_OPS(num_ps_buf_frames); diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index 4f845c0845ee..5f165d7eb2db 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -423,7 +423,8 @@ static inline int drv_conf_tx(struct ieee80211_local *local, trace_drv_conf_tx(local, sdata, queue, params); if (local->ops->conf_tx) - ret = local->ops->conf_tx(&local->hw, queue, params); + ret = local->ops->conf_tx(&local->hw, &sdata->vif, + queue, params); trace_drv_return_int(local, ret); return ret; } @@ -670,4 +671,34 @@ static inline void drv_rssi_callback(struct ieee80211_local *local, local->ops->rssi_callback(&local->hw, event); trace_drv_return_void(local); } + +static inline void +drv_release_buffered_frames(struct ieee80211_local *local, + struct sta_info *sta, u16 tids, int num_frames, + enum ieee80211_frame_release_type reason, + bool more_data) +{ + trace_drv_release_buffered_frames(local, &sta->sta, tids, num_frames, + reason, more_data); + if (local->ops->release_buffered_frames) + local->ops->release_buffered_frames(&local->hw, &sta->sta, tids, + num_frames, reason, + more_data); + trace_drv_return_void(local); +} + +static inline void +drv_allow_buffered_frames(struct ieee80211_local *local, + struct sta_info *sta, u16 tids, int num_frames, + enum ieee80211_frame_release_type reason, + bool more_data) +{ + trace_drv_allow_buffered_frames(local, &sta->sta, tids, num_frames, + reason, more_data); + if (local->ops->allow_buffered_frames) + local->ops->allow_buffered_frames(&local->hw, &sta->sta, + tids, num_frames, reason, + more_data); + trace_drv_return_void(local); +} #endif /* __MAC80211_DRIVER_OPS */ diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h index a46b279bbbe4..2af4fca55337 100644 --- a/net/mac80211/driver-trace.h +++ b/net/mac80211/driver-trace.h @@ -1129,6 +1129,61 @@ TRACE_EVENT(drv_rssi_callback, ) ); +DECLARE_EVENT_CLASS(release_evt, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sta *sta, + u16 tids, int num_frames, + enum ieee80211_frame_release_type reason, + bool more_data), + + TP_ARGS(local, sta, tids, num_frames, reason, more_data), + + TP_STRUCT__entry( + LOCAL_ENTRY + STA_ENTRY + __field(u16, tids) + __field(int, num_frames) + __field(int, reason) + __field(bool, more_data) + ), + + TP_fast_assign( + LOCAL_ASSIGN; + STA_ASSIGN; + __entry->tids = tids; + __entry->num_frames = num_frames; + __entry->reason = reason; + __entry->more_data = more_data; + ), + + TP_printk( + LOCAL_PR_FMT STA_PR_FMT + " TIDs:0x%.4x frames:%d reason:%d more:%d", + LOCAL_PR_ARG, STA_PR_ARG, __entry->tids, __entry->num_frames, + __entry->reason, __entry->more_data + ) +); + +DEFINE_EVENT(release_evt, drv_release_buffered_frames, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sta *sta, + u16 tids, int num_frames, + enum ieee80211_frame_release_type reason, + bool more_data), + + TP_ARGS(local, sta, tids, num_frames, reason, more_data) +); + +DEFINE_EVENT(release_evt, drv_allow_buffered_frames, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sta *sta, + u16 tids, int num_frames, + enum ieee80211_frame_release_type reason, + bool more_data), + + TP_ARGS(local, sta, tids, num_frames, reason, more_data) +); + /* * Tracing for API calls that drivers call. */ @@ -1443,6 +1498,28 @@ TRACE_EVENT(api_enable_rssi_reports, ) ); +TRACE_EVENT(api_eosp, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sta *sta), + + TP_ARGS(local, sta), + + TP_STRUCT__entry( + LOCAL_ENTRY + STA_ENTRY + ), + + TP_fast_assign( + LOCAL_ASSIGN; + STA_ASSIGN; + ), + + TP_printk( + LOCAL_PR_FMT STA_PR_FMT, + LOCAL_PR_ARG, STA_PR_FMT + ) +); + /* * Tracing for internal functions * (which may also be called in response to driver calls) diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index 2b9b52c69569..f80a35c0d000 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -130,7 +130,7 @@ void ieee80211_ba_session_work(struct work_struct *work) * down by the code that set the flag, so this * need not run. */ - if (test_sta_flags(sta, WLAN_STA_BLOCK_BA)) + if (test_sta_flag(sta, WLAN_STA_BLOCK_BA)) return; mutex_lock(&sta->ampdu_mlme.mtx); diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 41f16dd1a2b0..ede9a8b341ac 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -314,7 +314,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, } if (sta && elems->wmm_info) - set_sta_flags(sta, WLAN_STA_WME); + set_sta_flag(sta, WLAN_STA_WME); rcu_read_unlock(); } @@ -452,7 +452,7 @@ struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, return NULL; sta->last_rx = jiffies; - set_sta_flags(sta, WLAN_STA_AUTHORIZED); + set_sta_flag(sta, WLAN_STA_AUTHORIZED); /* make sure mandatory rates are always added */ sta->sta.supp_rates[band] = supp_rates | diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 5cadcbbc9a57..9fa5f8a674bc 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -664,6 +664,11 @@ enum sdata_queue_type { enum { IEEE80211_RX_MSG = 1, IEEE80211_TX_STATUS_MSG = 2, + IEEE80211_EOSP_MSG = 3, +}; + +struct skb_eosp_msg_data { + u8 sta[ETH_ALEN], iface[ETH_ALEN]; }; enum queue_stop_reason { @@ -1272,6 +1277,7 @@ void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int ke struct ieee80211_hdr *hdr, const u8 *tsc, gfp_t gfp); void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata); +void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); void ieee802_11_parse_elems(u8 *start, size_t len, struct ieee802_11_elems *elems); @@ -1303,11 +1309,11 @@ void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, enum queue_stop_reason reason); void ieee80211_add_pending_skb(struct ieee80211_local *local, struct sk_buff *skb); -int ieee80211_add_pending_skbs(struct ieee80211_local *local, - struct sk_buff_head *skbs); -int ieee80211_add_pending_skbs_fn(struct ieee80211_local *local, - struct sk_buff_head *skbs, - void (*fn)(void *data), void *data); +void ieee80211_add_pending_skbs(struct ieee80211_local *local, + struct sk_buff_head *skbs); +void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local, + struct sk_buff_head *skbs, + void (*fn)(void *data), void *data); void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, u16 transaction, u16 auth_alg, diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index f4350262663f..30d73552e9ab 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -299,8 +299,8 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up) goto err_del_interface; } - /* no locking required since STA is not live yet */ - sta->flags |= WLAN_STA_AUTHORIZED; + /* no atomic bitop required since STA is not live yet */ + set_sta_flag(sta, WLAN_STA_AUTHORIZED); res = sta_info_insert(sta); if (res) { diff --git a/net/mac80211/key.c b/net/mac80211/key.c index 5150c6d11b57..756b157c2edd 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -464,7 +464,7 @@ int ieee80211_key_link(struct ieee80211_key *key, * some hardware cannot handle TKIP with QoS, so * we indicate whether QoS could be in use. */ - if (test_sta_flags(sta, WLAN_STA_WME)) + if (test_sta_flag(sta, WLAN_STA_WME)) key->conf.flags |= IEEE80211_KEY_FLAG_WMM_STA; } else { if (sdata->vif.type == NL80211_IFTYPE_STATION) { @@ -478,7 +478,7 @@ int ieee80211_key_link(struct ieee80211_key *key, /* same here, the AP could be using QoS */ ap = sta_info_get(key->sdata, key->sdata->u.mgd.bssid); if (ap) { - if (test_sta_flags(ap, WLAN_STA_WME)) + if (test_sta_flag(ap, WLAN_STA_WME)) key->conf.flags |= IEEE80211_KEY_FLAG_WMM_STA; } diff --git a/net/mac80211/main.c b/net/mac80211/main.c index a5809a1a6239..17b038aeac9b 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -325,6 +325,8 @@ u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) static void ieee80211_tasklet_handler(unsigned long data) { struct ieee80211_local *local = (struct ieee80211_local *) data; + struct sta_info *sta, *tmp; + struct skb_eosp_msg_data *eosp_data; struct sk_buff *skb; while ((skb = skb_dequeue(&local->skb_queue)) || @@ -340,6 +342,18 @@ static void ieee80211_tasklet_handler(unsigned long data) skb->pkt_type = 0; ieee80211_tx_status(local_to_hw(local), skb); break; + case IEEE80211_EOSP_MSG: + eosp_data = (void *)skb->cb; + for_each_sta_info(local, eosp_data->sta, sta, tmp) { + /* skip wrong virtual interface */ + if (memcmp(eosp_data->iface, + sta->sdata->vif.addr, ETH_ALEN)) + continue; + clear_sta_flag(sta, WLAN_STA_SP); + break; + } + dev_kfree_skb(skb); + break; default: WARN(1, "mac80211: Packet is of unknown type %d\n", skb->pkt_type); @@ -863,6 +877,10 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) if (local->ops->sched_scan_start) local->hw.wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; + /* mac80211 based drivers don't support internal TDLS setup */ + if (local->hw.wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) + local->hw.wiphy->flags |= WIPHY_FLAG_TDLS_EXTERNAL_SETUP; + result = wiphy_register(local->hw.wiphy); if (result < 0) goto fail_wiphy_register; diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index a4225ae69681..a7078fdba8ca 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -320,64 +320,6 @@ mesh_add_rsn_ie(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata) return 0; } -int -mesh_add_srates_ie(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata) -{ - struct ieee80211_local *local = sdata->local; - struct ieee80211_supported_band *sband; - int rate; - u8 i, rates, *pos; - - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - rates = sband->n_bitrates; - if (rates > 8) - rates = 8; - - if (skb_tailroom(skb) < rates + 2) - return -ENOMEM; - - pos = skb_put(skb, rates + 2); - *pos++ = WLAN_EID_SUPP_RATES; - *pos++ = rates; - for (i = 0; i < rates; i++) { - rate = sband->bitrates[i].bitrate; - *pos++ = (u8) (rate / 5); - } - - return 0; -} - -int -mesh_add_ext_srates_ie(struct sk_buff *skb, - struct ieee80211_sub_if_data *sdata) -{ - struct ieee80211_local *local = sdata->local; - struct ieee80211_supported_band *sband; - int rate; - u8 i, exrates, *pos; - - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - exrates = sband->n_bitrates; - if (exrates > 8) - exrates -= 8; - else - exrates = 0; - - if (skb_tailroom(skb) < exrates + 2) - return -ENOMEM; - - if (exrates) { - pos = skb_put(skb, exrates + 2); - *pos++ = WLAN_EID_EXT_SUPP_RATES; - *pos++ = exrates; - for (i = 8; i < sband->n_bitrates; i++) { - rate = sband->bitrates[i].bitrate; - *pos++ = (u8) (rate / 5); - } - } - return 0; -} - int mesh_add_ds_params_ie(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata) { diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h index 7118e8e8855c..8c00e2d1d636 100644 --- a/net/mac80211/mesh.h +++ b/net/mac80211/mesh.h @@ -210,10 +210,6 @@ int mesh_add_rsn_ie(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata); int mesh_add_vendor_ies(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata); -int mesh_add_srates_ie(struct sk_buff *skb, - struct ieee80211_sub_if_data *sdata); -int mesh_add_ext_srates_ie(struct sk_buff *skb, - struct ieee80211_sub_if_data *sdata); int mesh_add_ds_params_ie(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata); void mesh_rmc_free(struct ieee80211_sub_if_data *sdata); diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index 1213a23ff0fa..7e57f5d07f66 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -92,7 +92,9 @@ static struct sta_info *mesh_plink_alloc(struct ieee80211_sub_if_data *sdata, if (!sta) return NULL; - sta->flags = WLAN_STA_AUTHORIZED | WLAN_STA_AUTH | WLAN_STA_WME; + set_sta_flag(sta, WLAN_STA_AUTH); + set_sta_flag(sta, WLAN_STA_AUTHORIZED); + set_sta_flag(sta, WLAN_STA_WME); sta->sta.supp_rates[local->hw.conf.channel->band] = rates; rate_control_rate_init(sta); @@ -185,8 +187,8 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata, pos = skb_put(skb, 2); memcpy(pos + 2, &plid, 2); } - if (mesh_add_srates_ie(skb, sdata) || - mesh_add_ext_srates_ie(skb, sdata) || + if (ieee80211_add_srates_ie(&sdata->vif, skb) || + ieee80211_add_ext_srates_ie(&sdata->vif, skb) || mesh_add_rsn_ie(skb, sdata) || mesh_add_meshid_ie(skb, sdata) || mesh_add_meshconf_ie(skb, sdata)) @@ -383,7 +385,7 @@ int mesh_plink_open(struct sta_info *sta) __le16 llid; struct ieee80211_sub_if_data *sdata = sta->sdata; - if (!test_sta_flags(sta, WLAN_STA_AUTH)) + if (!test_sta_flag(sta, WLAN_STA_AUTH)) return -EPERM; spin_lock_bh(&sta->lock); @@ -503,7 +505,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m return; } - if (sta && !test_sta_flags(sta, WLAN_STA_AUTH)) { + if (sta && !test_sta_flag(sta, WLAN_STA_AUTH)) { mpl_dbg("Mesh plink: Action frame from non-authed peer\n"); rcu_read_unlock(); return; diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index cd37a4e3c0d7..0e5d8daba1ee 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -348,6 +348,7 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local, { struct sk_buff *skb; struct ieee80211_hdr_3addr *nullfunc; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; skb = ieee80211_nullfunc_get(&local->hw, &sdata->vif); if (!skb) @@ -358,6 +359,10 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local, nullfunc->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; + if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL | + IEEE80211_STA_CONNECTION_POLL)) + IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_USE_MINRATE; + ieee80211_tx_skb(sdata, skb); } @@ -627,7 +632,7 @@ static bool ieee80211_powersave_allowed(struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_managed *mgd = &sdata->u.mgd; struct sta_info *sta = NULL; - u32 sta_flags = 0; + bool authorized = false; if (!mgd->powersave) return false; @@ -645,13 +650,10 @@ static bool ieee80211_powersave_allowed(struct ieee80211_sub_if_data *sdata) rcu_read_lock(); sta = sta_info_get(sdata, mgd->bssid); if (sta) - sta_flags = get_sta_flags(sta); + authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED); rcu_read_unlock(); - if (!(sta_flags & WLAN_STA_AUTHORIZED)) - return false; - - return true; + return authorized; } /* need to hold RTNL or interface lock */ @@ -1095,7 +1097,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, mutex_lock(&local->sta_mtx); sta = sta_info_get(sdata, bssid); if (sta) { - set_sta_flags(sta, WLAN_STA_BLOCK_BA); + set_sta_flag(sta, WLAN_STA_BLOCK_BA); ieee80211_sta_tear_down_BA_sessions(sta, tx); } mutex_unlock(&local->sta_mtx); @@ -1137,8 +1139,9 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, changed |= BSS_CHANGED_BSSID | BSS_CHANGED_HT; ieee80211_bss_info_change_notify(sdata, changed); + /* remove AP and TDLS peers */ if (remove_sta) - sta_info_destroy_addr(sdata, bssid); + sta_info_flush(local, sdata); del_timer_sync(&sdata->u.mgd.conn_mon_timer); del_timer_sync(&sdata->u.mgd.bcn_mon_timer); @@ -1512,10 +1515,11 @@ static bool ieee80211_assoc_success(struct ieee80211_work *wk, return false; } - set_sta_flags(sta, WLAN_STA_AUTH | WLAN_STA_ASSOC | - WLAN_STA_ASSOC_AP); + set_sta_flag(sta, WLAN_STA_AUTH); + set_sta_flag(sta, WLAN_STA_ASSOC); + set_sta_flag(sta, WLAN_STA_ASSOC_AP); if (!(ifmgd->flags & IEEE80211_STA_CONTROL_PORT)) - set_sta_flags(sta, WLAN_STA_AUTHORIZED); + set_sta_flag(sta, WLAN_STA_AUTHORIZED); rates = 0; basic_rates = 0; @@ -1574,10 +1578,10 @@ static bool ieee80211_assoc_success(struct ieee80211_work *wk, rate_control_rate_init(sta); if (ifmgd->flags & IEEE80211_STA_MFP_ENABLED) - set_sta_flags(sta, WLAN_STA_MFP); + set_sta_flag(sta, WLAN_STA_MFP); if (elems.wmm_param) - set_sta_flags(sta, WLAN_STA_WME); + set_sta_flag(sta, WLAN_STA_WME); /* sta_info_reinsert will also unlock the mutex lock */ err = sta_info_reinsert(sta); @@ -2738,7 +2742,7 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, req->reason_code, cookie, !req->local_state_change); if (assoc_bss) - sta_info_destroy_addr(sdata, bssid); + sta_info_flush(sdata->local, sdata); mutex_lock(&sdata->local->mtx); ieee80211_recalc_idle(sdata->local); @@ -2778,7 +2782,7 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, ieee80211_send_deauth_disassoc(sdata, req->bss->bssid, IEEE80211_STYPE_DISASSOC, req->reason_code, cookie, !req->local_state_change); - sta_info_destroy_addr(sdata, bssid); + sta_info_flush(sdata->local, sdata); mutex_lock(&sdata->local->mtx); ieee80211_recalc_idle(sdata->local); diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c index 6326d3439861..9ee7164b207c 100644 --- a/net/mac80211/pm.c +++ b/net/mac80211/pm.c @@ -42,7 +42,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) { mutex_lock(&local->sta_mtx); list_for_each_entry(sta, &local->sta_list, list) { - set_sta_flags(sta, WLAN_STA_BLOCK_BA); + set_sta_flag(sta, WLAN_STA_BLOCK_BA); ieee80211_sta_tear_down_BA_sessions(sta, true); } mutex_unlock(&local->sta_mtx); diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c index f61244c0e0a2..ff5c3aa48a15 100644 --- a/net/mac80211/rate.c +++ b/net/mac80211/rate.c @@ -199,7 +199,7 @@ static void rate_control_release(struct kref *kref) kfree(ctrl_ref); } -static bool rc_no_data_or_no_ack(struct ieee80211_tx_rate_control *txrc) +static bool rc_no_data_or_no_ack_use_min(struct ieee80211_tx_rate_control *txrc) { struct sk_buff *skb = txrc->skb; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; @@ -208,7 +208,9 @@ static bool rc_no_data_or_no_ack(struct ieee80211_tx_rate_control *txrc) fc = hdr->frame_control; - return (info->flags & IEEE80211_TX_CTL_NO_ACK) || !ieee80211_is_data(fc); + return (info->flags & (IEEE80211_TX_CTL_NO_ACK | + IEEE80211_TX_CTL_USE_MINRATE)) || + !ieee80211_is_data(fc); } static void rc_send_low_broadcast(s8 *idx, u32 basic_rates, @@ -262,7 +264,7 @@ bool rate_control_send_low(struct ieee80211_sta *sta, struct ieee80211_supported_band *sband = txrc->sband; int mcast_rate; - if (!sta || !priv_sta || rc_no_data_or_no_ack(txrc)) { + if (!sta || !priv_sta || rc_no_data_or_no_ack_use_min(txrc)) { if ((sband->band != IEEE80211_BAND_2GHZ) || !(info->flags & IEEE80211_TX_CTL_NO_CCK_RATE)) info->control.rates[0].idx = diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c index e19249b0f971..cdb28535716b 100644 --- a/net/mac80211/rc80211_minstrel_ht.c +++ b/net/mac80211/rc80211_minstrel_ht.c @@ -281,6 +281,8 @@ minstrel_ht_update_stats(struct minstrel_priv *mp, struct minstrel_ht_sta *mi) mr = minstrel_get_ratestats(mi, mg->max_tp_rate); if (cur_tp < mr->cur_tp) { + mi->max_tp_rate2 = mi->max_tp_rate; + cur_tp2 = cur_tp; mi->max_tp_rate = mg->max_tp_rate; cur_tp = mr->cur_tp; } diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index db46601e50bf..b867bd55de7a 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -841,7 +841,7 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx) ieee80211_is_pspoll(hdr->frame_control)) && rx->sdata->vif.type != NL80211_IFTYPE_ADHOC && rx->sdata->vif.type != NL80211_IFTYPE_WDS && - (!rx->sta || !test_sta_flags(rx->sta, WLAN_STA_ASSOC)))) { + (!rx->sta || !test_sta_flag(rx->sta, WLAN_STA_ASSOC)))) { if (rx->sta && rx->sta->dummy && ieee80211_is_data_present(hdr->frame_control)) { u16 ethertype; @@ -1110,7 +1110,7 @@ static void ap_sta_ps_start(struct sta_info *sta) struct ieee80211_local *local = sdata->local; atomic_inc(&sdata->bss->num_sta_ps); - set_sta_flags(sta, WLAN_STA_PS_STA); + set_sta_flag(sta, WLAN_STA_PS_STA); if (!(local->hw.flags & IEEE80211_HW_AP_LINK_PS)) drv_sta_notify(local, sdata, STA_NOTIFY_SLEEP, &sta->sta); #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG @@ -1130,7 +1130,7 @@ static void ap_sta_ps_end(struct sta_info *sta) sdata->name, sta->sta.addr, sta->sta.aid); #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ - if (test_sta_flags(sta, WLAN_STA_PS_DRIVER)) { + if (test_sta_flag(sta, WLAN_STA_PS_DRIVER)) { #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG printk(KERN_DEBUG "%s: STA %pM aid %d driver-ps-blocked\n", sdata->name, sta->sta.addr, sta->sta.aid); @@ -1149,7 +1149,7 @@ int ieee80211_sta_ps_transition(struct ieee80211_sta *sta, bool start) WARN_ON(!(sta_inf->local->hw.flags & IEEE80211_HW_AP_LINK_PS)); /* Don't let the same PS state be set twice */ - in_ps = test_sta_flags(sta_inf, WLAN_STA_PS_STA); + in_ps = test_sta_flag(sta_inf, WLAN_STA_PS_STA); if ((start && in_ps) || (!start && !in_ps)) return -EINVAL; @@ -1163,6 +1163,81 @@ int ieee80211_sta_ps_transition(struct ieee80211_sta *sta, bool start) EXPORT_SYMBOL(ieee80211_sta_ps_transition); static ieee80211_rx_result debug_noinline +ieee80211_rx_h_uapsd_and_pspoll(struct ieee80211_rx_data *rx) +{ + struct ieee80211_sub_if_data *sdata = rx->sdata; + struct ieee80211_hdr *hdr = (void *)rx->skb->data; + struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb); + int tid, ac; + + if (!rx->sta || !(status->rx_flags & IEEE80211_RX_RA_MATCH)) + return RX_CONTINUE; + + if (sdata->vif.type != NL80211_IFTYPE_AP && + sdata->vif.type != NL80211_IFTYPE_AP_VLAN) + return RX_CONTINUE; + + /* + * The device handles station powersave, so don't do anything about + * 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) + return RX_CONTINUE; + + /* + * Don't do anything if the station isn't already asleep. In + * the uAPSD case, the station will probably be marked asleep, + * in the PS-Poll case the station must be confused ... + */ + if (!test_sta_flag(rx->sta, WLAN_STA_PS_STA)) + return RX_CONTINUE; + + if (unlikely(ieee80211_is_pspoll(hdr->frame_control))) { + if (!test_sta_flag(rx->sta, WLAN_STA_SP)) { + if (!test_sta_flag(rx->sta, WLAN_STA_PS_DRIVER)) + ieee80211_sta_ps_deliver_poll_response(rx->sta); + else + set_sta_flag(rx->sta, WLAN_STA_PSPOLL); + } + + /* Free PS Poll skb here instead of returning RX_DROP that would + * count as an dropped frame. */ + dev_kfree_skb(rx->skb); + + return RX_QUEUED; + } else if (!ieee80211_has_morefrags(hdr->frame_control) && + !(status->rx_flags & IEEE80211_RX_DEFERRED_RELEASE) && + ieee80211_has_pm(hdr->frame_control) && + (ieee80211_is_data_qos(hdr->frame_control) || + ieee80211_is_qos_nullfunc(hdr->frame_control))) { + tid = *ieee80211_get_qos_ctl(hdr) & IEEE80211_QOS_CTL_TID_MASK; + ac = ieee802_1d_to_ac[tid & 7]; + + /* + * If this AC is not trigger-enabled do nothing. + * + * NB: This could/should check a separate bitmap of trigger- + * enabled queues, but for now we only implement uAPSD w/o + * TSPEC changes to the ACs, so they're always the same. + */ + if (!(rx->sta->sta.uapsd_queues & BIT(ac))) + return RX_CONTINUE; + + /* if we are in a service period, do nothing */ + if (test_sta_flag(rx->sta, WLAN_STA_SP)) + return RX_CONTINUE; + + if (!test_sta_flag(rx->sta, WLAN_STA_PS_DRIVER)) + ieee80211_sta_ps_deliver_uapsd(rx->sta); + else + set_sta_flag(rx->sta, WLAN_STA_UAPSD); + } + + return RX_CONTINUE; +} + +static ieee80211_rx_result debug_noinline ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx) { struct sta_info *sta = rx->sta; @@ -1220,7 +1295,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx) !(status->rx_flags & IEEE80211_RX_DEFERRED_RELEASE) && (rx->sdata->vif.type == NL80211_IFTYPE_AP || rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN)) { - if (test_sta_flags(sta, WLAN_STA_PS_STA)) { + if (test_sta_flag(sta, WLAN_STA_PS_STA)) { /* * Ignore doze->wake transitions that are * indicated by non-data frames, the standard @@ -1473,33 +1548,6 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx) } static ieee80211_rx_result debug_noinline -ieee80211_rx_h_ps_poll(struct ieee80211_rx_data *rx) -{ - struct ieee80211_sub_if_data *sdata = rx->sdata; - __le16 fc = ((struct ieee80211_hdr *)rx->skb->data)->frame_control; - struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb); - - if (likely(!rx->sta || !ieee80211_is_pspoll(fc) || - !(status->rx_flags & IEEE80211_RX_RA_MATCH))) - return RX_CONTINUE; - - if ((sdata->vif.type != NL80211_IFTYPE_AP) && - (sdata->vif.type != NL80211_IFTYPE_AP_VLAN)) - return RX_DROP_UNUSABLE; - - if (!test_sta_flags(rx->sta, WLAN_STA_PS_DRIVER)) - ieee80211_sta_ps_deliver_poll_response(rx->sta); - else - set_sta_flags(rx->sta, WLAN_STA_PSPOLL); - - /* Free PS Poll skb here instead of returning RX_DROP that would - * count as an dropped frame. */ - dev_kfree_skb(rx->skb); - - return RX_QUEUED; -} - -static ieee80211_rx_result debug_noinline ieee80211_rx_h_remove_qos_control(struct ieee80211_rx_data *rx) { u8 *data = rx->skb->data; @@ -1522,7 +1570,7 @@ static int ieee80211_802_1x_port_control(struct ieee80211_rx_data *rx) { if (unlikely(!rx->sta || - !test_sta_flags(rx->sta, WLAN_STA_AUTHORIZED))) + !test_sta_flag(rx->sta, WLAN_STA_AUTHORIZED))) return -EACCES; return 0; @@ -1565,7 +1613,7 @@ ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx) if (status->flag & RX_FLAG_DECRYPTED) return 0; - if (rx->sta && test_sta_flags(rx->sta, WLAN_STA_MFP)) { + if (rx->sta && test_sta_flag(rx->sta, WLAN_STA_MFP)) { if (unlikely(!ieee80211_has_protected(fc) && ieee80211_is_unicast_robust_mgmt_frame(rx->skb) && rx->key)) { @@ -2567,9 +2615,9 @@ static void ieee80211_rx_handlers(struct ieee80211_rx_data *rx) CALL_RXH(ieee80211_rx_h_decrypt) CALL_RXH(ieee80211_rx_h_check_more_data) + CALL_RXH(ieee80211_rx_h_uapsd_and_pspoll) CALL_RXH(ieee80211_rx_h_sta_process) CALL_RXH(ieee80211_rx_h_defragment) - CALL_RXH(ieee80211_rx_h_ps_poll) CALL_RXH(ieee80211_rx_h_michael_mic_verify) /* must be after MMIC verify so header is counted in MPDU mic */ #ifdef CONFIG_MAC80211_MESH diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 0a7e0fed3251..58b1c2bb26d2 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -24,6 +24,7 @@ #include "sta_info.h" #include "debugfs_sta.h" #include "mesh.h" +#include "wme.h" /** * DOC: STA information lifetime rules @@ -243,13 +244,22 @@ static void sta_unblock(struct work_struct *wk) if (sta->dead) return; - if (!test_sta_flags(sta, WLAN_STA_PS_STA)) + if (!test_sta_flag(sta, WLAN_STA_PS_STA)) ieee80211_sta_ps_deliver_wakeup(sta); - else if (test_and_clear_sta_flags(sta, WLAN_STA_PSPOLL)) { - clear_sta_flags(sta, WLAN_STA_PS_DRIVER); + else if (test_and_clear_sta_flag(sta, WLAN_STA_PSPOLL)) { + clear_sta_flag(sta, WLAN_STA_PS_DRIVER); + + local_bh_disable(); ieee80211_sta_ps_deliver_poll_response(sta); + local_bh_enable(); + } else if (test_and_clear_sta_flag(sta, WLAN_STA_UAPSD)) { + clear_sta_flag(sta, WLAN_STA_PS_DRIVER); + + local_bh_disable(); + ieee80211_sta_ps_deliver_uapsd(sta); + local_bh_enable(); } else - clear_sta_flags(sta, WLAN_STA_PS_DRIVER); + clear_sta_flag(sta, WLAN_STA_PS_DRIVER); } static int sta_prepare_rate_control(struct ieee80211_local *local, @@ -282,7 +292,6 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, return NULL; spin_lock_init(&sta->lock); - spin_lock_init(&sta->flaglock); INIT_WORK(&sta->drv_unblock_wk, sta_unblock); INIT_WORK(&sta->ampdu_mlme.work, ieee80211_ba_session_work); mutex_init(&sta->ampdu_mlme.mtx); @@ -309,8 +318,10 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, */ sta->timer_to_tid[i] = i; } - skb_queue_head_init(&sta->ps_tx_buf); - skb_queue_head_init(&sta->tx_filtered); + for (i = 0; i < IEEE80211_NUM_ACS; i++) { + skb_queue_head_init(&sta->ps_tx_buf[i]); + skb_queue_head_init(&sta->tx_filtered[i]); + } for (i = 0; i < NUM_RX_DATA_QUEUES; i++) sta->last_seq_ctrl[i] = cpu_to_le16(USHRT_MAX); @@ -641,54 +652,84 @@ static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid) bss->tim[aid / 8] &= ~(1 << (aid % 8)); } -static void __sta_info_set_tim_bit(struct ieee80211_if_ap *bss, - struct sta_info *sta) +static unsigned long ieee80211_tids_for_ac(int ac) { - BUG_ON(!bss); - - __bss_tim_set(bss, sta->sta.aid); - - if (sta->local->ops->set_tim) { - sta->local->tim_in_locked_section = true; - drv_set_tim(sta->local, &sta->sta, true); - sta->local->tim_in_locked_section = false; + /* If we ever support TIDs > 7, this obviously needs to be adjusted */ + switch (ac) { + case IEEE80211_AC_VO: + return BIT(6) | BIT(7); + case IEEE80211_AC_VI: + return BIT(4) | BIT(5); + case IEEE80211_AC_BE: + return BIT(0) | BIT(3); + case IEEE80211_AC_BK: + return BIT(1) | BIT(2); + default: + WARN_ON(1); + return 0; } } -void sta_info_set_tim_bit(struct sta_info *sta) +void sta_info_recalc_tim(struct sta_info *sta) { + struct ieee80211_local *local = sta->local; + struct ieee80211_if_ap *bss = sta->sdata->bss; unsigned long flags; + bool indicate_tim = false; + u8 ignore_for_tim = sta->sta.uapsd_queues; + int ac; - BUG_ON(!sta->sdata->bss); + if (WARN_ON_ONCE(!sta->sdata->bss)) + return; - spin_lock_irqsave(&sta->local->sta_lock, flags); - __sta_info_set_tim_bit(sta->sdata->bss, sta); - spin_unlock_irqrestore(&sta->local->sta_lock, flags); -} + /* No need to do anything if the driver does all */ + if (local->hw.flags & IEEE80211_HW_AP_LINK_PS) + return; -static void __sta_info_clear_tim_bit(struct ieee80211_if_ap *bss, - struct sta_info *sta) -{ - BUG_ON(!bss); + if (sta->dead) + goto done; + + /* + * If all ACs are delivery-enabled then we should build + * the TIM bit for all ACs anyway; if only some are then + * we ignore those and build the TIM bit using only the + * non-enabled ones. + */ + if (ignore_for_tim == BIT(IEEE80211_NUM_ACS) - 1) + ignore_for_tim = 0; + + for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { + unsigned long tids; - __bss_tim_clear(bss, sta->sta.aid); + if (ignore_for_tim & BIT(ac)) + continue; + + indicate_tim |= !skb_queue_empty(&sta->tx_filtered[ac]) || + !skb_queue_empty(&sta->ps_tx_buf[ac]); + if (indicate_tim) + break; - if (sta->local->ops->set_tim) { - sta->local->tim_in_locked_section = true; - drv_set_tim(sta->local, &sta->sta, false); - sta->local->tim_in_locked_section = false; + tids = ieee80211_tids_for_ac(ac); + + indicate_tim |= + sta->driver_buffered_tids & tids; } -} -void sta_info_clear_tim_bit(struct sta_info *sta) -{ - unsigned long flags; + done: + spin_lock_irqsave(&local->sta_lock, flags); - BUG_ON(!sta->sdata->bss); + if (indicate_tim) + __bss_tim_set(bss, sta->sta.aid); + else + __bss_tim_clear(bss, sta->sta.aid); + + if (local->ops->set_tim) { + local->tim_in_locked_section = true; + drv_set_tim(local, &sta->sta, indicate_tim); + local->tim_in_locked_section = false; + } - spin_lock_irqsave(&sta->local->sta_lock, flags); - __sta_info_clear_tim_bit(sta->sdata->bss, sta); - spin_unlock_irqrestore(&sta->local->sta_lock, flags); + spin_unlock_irqrestore(&local->sta_lock, flags); } static bool sta_info_buffer_expired(struct sta_info *sta, struct sk_buff *skb) @@ -711,21 +752,59 @@ static bool sta_info_buffer_expired(struct sta_info *sta, struct sk_buff *skb) } -static bool sta_info_cleanup_expire_buffered(struct ieee80211_local *local, - struct sta_info *sta) +static bool sta_info_cleanup_expire_buffered_ac(struct ieee80211_local *local, + struct sta_info *sta, int ac) { unsigned long flags; struct sk_buff *skb; + /* + * First check for frames that should expire on the filtered + * queue. Frames here were rejected by the driver and are on + * a separate queue to avoid reordering with normal PS-buffered + * frames. They also aren't accounted for right now in the + * total_ps_buffered counter. + */ + for (;;) { + spin_lock_irqsave(&sta->tx_filtered[ac].lock, flags); + skb = skb_peek(&sta->tx_filtered[ac]); + if (sta_info_buffer_expired(sta, skb)) + skb = __skb_dequeue(&sta->tx_filtered[ac]); + else + skb = NULL; + spin_unlock_irqrestore(&sta->tx_filtered[ac].lock, flags); + + /* + * Frames are queued in order, so if this one + * hasn't expired yet we can stop testing. If + * we actually reached the end of the queue we + * also need to stop, of course. + */ + if (!skb) + break; + dev_kfree_skb(skb); + } + + /* + * Now also check the normal PS-buffered queue, this will + * only find something if the filtered queue was emptied + * since the filtered frames are all before the normal PS + * buffered frames. + */ for (;;) { - spin_lock_irqsave(&sta->ps_tx_buf.lock, flags); - skb = skb_peek(&sta->ps_tx_buf); + spin_lock_irqsave(&sta->ps_tx_buf[ac].lock, flags); + skb = skb_peek(&sta->ps_tx_buf[ac]); if (sta_info_buffer_expired(sta, skb)) - skb = __skb_dequeue(&sta->ps_tx_buf); + skb = __skb_dequeue(&sta->ps_tx_buf[ac]); else skb = NULL; - spin_unlock_irqrestore(&sta->ps_tx_buf.lock, flags); + spin_unlock_irqrestore(&sta->ps_tx_buf[ac].lock, flags); + /* + * frames are queued in order, so if this one + * hasn't expired yet (or we reached the end of + * the queue) we can stop testing + */ if (!skb) break; @@ -735,22 +814,47 @@ static bool sta_info_cleanup_expire_buffered(struct ieee80211_local *local, sta->sta.addr); #endif dev_kfree_skb(skb); - - if (skb_queue_empty(&sta->ps_tx_buf) && - !test_sta_flags(sta, WLAN_STA_PS_DRIVER_BUF)) - sta_info_clear_tim_bit(sta); } - return !skb_queue_empty(&sta->ps_tx_buf); + /* + * Finally, recalculate the TIM bit for this station -- it might + * now be clear because the station was too slow to retrieve its + * frames. + */ + sta_info_recalc_tim(sta); + + /* + * Return whether there are any frames still buffered, this is + * used to check whether the cleanup timer still needs to run, + * if there are no frames we don't need to rearm the timer. + */ + return !(skb_queue_empty(&sta->ps_tx_buf[ac]) && + skb_queue_empty(&sta->tx_filtered[ac])); +} + +static bool sta_info_cleanup_expire_buffered(struct ieee80211_local *local, + struct sta_info *sta) +{ + bool have_buffered = false; + int ac; + + /* This is only necessary for stations on BSS interfaces */ + if (!sta->sdata->bss) + return false; + + for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) + have_buffered |= + sta_info_cleanup_expire_buffered_ac(local, sta, ac); + + return have_buffered; } static int __must_check __sta_info_destroy(struct sta_info *sta) { struct ieee80211_local *local; struct ieee80211_sub_if_data *sdata; - struct sk_buff *skb; unsigned long flags; - int ret, i; + int ret, i, ac; might_sleep(); @@ -766,7 +870,7 @@ static int __must_check __sta_info_destroy(struct sta_info *sta) * sessions -- block that to make sure the tear-down * will be sufficient. */ - set_sta_flags(sta, WLAN_STA_BLOCK_BA); + set_sta_flag(sta, WLAN_STA_BLOCK_BA); ieee80211_sta_tear_down_BA_sessions(sta, true); spin_lock_irqsave(&local->sta_lock, flags); @@ -787,12 +891,15 @@ static int __must_check __sta_info_destroy(struct sta_info *sta) sta->dead = true; - if (test_and_clear_sta_flags(sta, - WLAN_STA_PS_STA | WLAN_STA_PS_DRIVER)) { + if (test_sta_flag(sta, WLAN_STA_PS_STA) || + test_sta_flag(sta, WLAN_STA_PS_DRIVER)) { BUG_ON(!sdata->bss); + clear_sta_flag(sta, WLAN_STA_PS_STA); + clear_sta_flag(sta, WLAN_STA_PS_DRIVER); + atomic_dec(&sdata->bss->num_sta_ps); - sta_info_clear_tim_bit(sta); + sta_info_recalc_tim(sta); } local->num_sta--; @@ -818,6 +925,12 @@ static int __must_check __sta_info_destroy(struct sta_info *sta) */ synchronize_rcu(); + for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { + local->total_ps_buffered -= skb_queue_len(&sta->ps_tx_buf[ac]); + __skb_queue_purge(&sta->ps_tx_buf[ac]); + __skb_queue_purge(&sta->tx_filtered[ac]); + } + #ifdef CONFIG_MAC80211_MESH if (ieee80211_vif_is_mesh(&sdata->vif)) mesh_accept_plinks_update(sdata); @@ -840,14 +953,6 @@ static int __must_check __sta_info_destroy(struct sta_info *sta) } #endif - while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) { - local->total_ps_buffered--; - dev_kfree_skb_any(skb); - } - - while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) - dev_kfree_skb_any(skb); - __sta_info_free(local, sta); return 0; @@ -1013,7 +1118,8 @@ static void clear_sta_ps_flags(void *_sta) { struct sta_info *sta = _sta; - clear_sta_flags(sta, WLAN_STA_PS_DRIVER | WLAN_STA_PS_STA); + clear_sta_flag(sta, WLAN_STA_PS_DRIVER); + clear_sta_flag(sta, WLAN_STA_PS_STA); } /* powersave support code */ @@ -1021,88 +1127,343 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta) { struct ieee80211_sub_if_data *sdata = sta->sdata; struct ieee80211_local *local = sdata->local; - int sent, buffered; + struct sk_buff_head pending; + int filtered = 0, buffered = 0, ac; + + clear_sta_flag(sta, WLAN_STA_SP); + + BUILD_BUG_ON(BITS_TO_LONGS(STA_TID_NUM) > 1); + sta->driver_buffered_tids = 0; - clear_sta_flags(sta, WLAN_STA_PS_DRIVER_BUF); if (!(local->hw.flags & IEEE80211_HW_AP_LINK_PS)) drv_sta_notify(local, sdata, STA_NOTIFY_AWAKE, &sta->sta); - if (!skb_queue_empty(&sta->ps_tx_buf)) - sta_info_clear_tim_bit(sta); + skb_queue_head_init(&pending); /* Send all buffered frames to the station */ - sent = ieee80211_add_pending_skbs(local, &sta->tx_filtered); - buffered = ieee80211_add_pending_skbs_fn(local, &sta->ps_tx_buf, - clear_sta_ps_flags, sta); - sent += buffered; + for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { + int count = skb_queue_len(&pending), tmp; + + skb_queue_splice_tail_init(&sta->tx_filtered[ac], &pending); + tmp = skb_queue_len(&pending); + filtered += tmp - count; + count = tmp; + + skb_queue_splice_tail_init(&sta->ps_tx_buf[ac], &pending); + tmp = skb_queue_len(&pending); + buffered += tmp - count; + } + + ieee80211_add_pending_skbs_fn(local, &pending, clear_sta_ps_flags, sta); + local->total_ps_buffered -= buffered; + sta_info_recalc_tim(sta); + #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG printk(KERN_DEBUG "%s: STA %pM aid %d sending %d filtered/%d PS frames " "since STA not sleeping anymore\n", sdata->name, - sta->sta.addr, sta->sta.aid, sent - buffered, buffered); + sta->sta.addr, sta->sta.aid, filtered, buffered); #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ } -void ieee80211_sta_ps_deliver_poll_response(struct sta_info *sta) +static void ieee80211_send_null_response(struct ieee80211_sub_if_data *sdata, + struct sta_info *sta, int tid, + enum ieee80211_frame_release_type reason) { - struct ieee80211_sub_if_data *sdata = sta->sdata; struct ieee80211_local *local = sdata->local; + struct ieee80211_qos_hdr *nullfunc; struct sk_buff *skb; - int no_pending_pkts; + int size = sizeof(*nullfunc); + __le16 fc; + bool qos = test_sta_flag(sta, WLAN_STA_WME); + struct ieee80211_tx_info *info; - skb = skb_dequeue(&sta->tx_filtered); - if (!skb) { - skb = skb_dequeue(&sta->ps_tx_buf); - if (skb) - local->total_ps_buffered--; + if (qos) { + fc = cpu_to_le16(IEEE80211_FTYPE_DATA | + IEEE80211_STYPE_QOS_NULLFUNC | + IEEE80211_FCTL_FROMDS); + } else { + size -= 2; + fc = cpu_to_le16(IEEE80211_FTYPE_DATA | + IEEE80211_STYPE_NULLFUNC | + IEEE80211_FCTL_FROMDS); } - no_pending_pkts = skb_queue_empty(&sta->tx_filtered) && - skb_queue_empty(&sta->ps_tx_buf); - if (skb) { - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_hdr *hdr = - (struct ieee80211_hdr *) skb->data; + skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); + if (!skb) + return; + + skb_reserve(skb, local->hw.extra_tx_headroom); + + nullfunc = (void *) skb_put(skb, size); + nullfunc->frame_control = fc; + nullfunc->duration_id = 0; + memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); + memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); + memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); + + if (qos) { + skb->priority = tid; + + skb_set_queue_mapping(skb, ieee802_1d_to_ac[tid]); + + nullfunc->qos_ctrl = cpu_to_le16(tid); + + if (reason == IEEE80211_FRAME_RELEASE_UAPSD) + nullfunc->qos_ctrl |= + cpu_to_le16(IEEE80211_QOS_CTL_EOSP); + } + + info = IEEE80211_SKB_CB(skb); + + /* + * Tell TX path to send this frame even though the + * STA may still remain is PS mode after this frame + * exchange. Also set EOSP to indicate this packet + * ends the poll/service period. + */ + info->flags |= IEEE80211_TX_CTL_POLL_RESPONSE | + IEEE80211_TX_STATUS_EOSP | + IEEE80211_TX_CTL_REQ_TX_STATUS; + + drv_allow_buffered_frames(local, sta, BIT(tid), 1, reason, false); + + ieee80211_xmit(sdata, skb); +} + +static void +ieee80211_sta_ps_deliver_response(struct sta_info *sta, + int n_frames, u8 ignored_acs, + enum ieee80211_frame_release_type reason) +{ + struct ieee80211_sub_if_data *sdata = sta->sdata; + struct ieee80211_local *local = sdata->local; + bool found = false; + bool more_data = false; + int ac; + unsigned long driver_release_tids = 0; + struct sk_buff_head frames; + + /* Service or PS-Poll period starts */ + set_sta_flag(sta, WLAN_STA_SP); + + __skb_queue_head_init(&frames); + + /* + * Get response frame(s) and more data bit for it. + */ + for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { + unsigned long tids; + + if (ignored_acs & BIT(ac)) + continue; + + tids = ieee80211_tids_for_ac(ac); + + if (!found) { + driver_release_tids = sta->driver_buffered_tids & tids; + if (driver_release_tids) { + found = true; + } else { + struct sk_buff *skb; + + while (n_frames > 0) { + skb = skb_dequeue(&sta->tx_filtered[ac]); + if (!skb) { + skb = skb_dequeue( + &sta->ps_tx_buf[ac]); + if (skb) + local->total_ps_buffered--; + } + if (!skb) + break; + n_frames--; + found = true; + __skb_queue_tail(&frames, skb); + } + } + + /* + * If the driver has data on more than one TID then + * certainly there's more data if we release just a + * single frame now (from a single TID). + */ + if (reason == IEEE80211_FRAME_RELEASE_PSPOLL && + hweight16(driver_release_tids) > 1) { + more_data = true; + driver_release_tids = + BIT(ffs(driver_release_tids) - 1); + break; + } + } + + if (!skb_queue_empty(&sta->tx_filtered[ac]) || + !skb_queue_empty(&sta->ps_tx_buf[ac])) { + more_data = true; + break; + } + } + + if (!found) { + int tid; /* - * Tell TX path to send this frame even though the STA may - * still remain is PS mode after this frame exchange. + * For PS-Poll, this can only happen due to a race condition + * when we set the TIM bit and the station notices it, but + * before it can poll for the frame we expire it. + * + * For uAPSD, this is said in the standard (11.2.1.5 h): + * At each unscheduled SP for a non-AP STA, the AP shall + * attempt to transmit at least one MSDU or MMPDU, but no + * more than the value specified in the Max SP Length field + * in the QoS Capability element from delivery-enabled ACs, + * that are destined for the non-AP STA. + * + * Since we have no other MSDU/MMPDU, transmit a QoS null frame. */ - info->flags |= IEEE80211_TX_CTL_PSPOLL_RESPONSE; -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "STA %pM aid %d: PS Poll (entries after %d)\n", - sta->sta.addr, sta->sta.aid, - skb_queue_len(&sta->ps_tx_buf)); -#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ + /* This will evaluate to 1, 3, 5 or 7. */ + tid = 7 - ((ffs(~ignored_acs) - 1) << 1); - /* Use MoreData flag to indicate whether there are more - * buffered frames for this STA */ - if (no_pending_pkts) - hdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREDATA); - else - hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA); + ieee80211_send_null_response(sdata, sta, tid, reason); + return; + } - ieee80211_add_pending_skb(local, skb); + if (!driver_release_tids) { + struct sk_buff_head pending; + struct sk_buff *skb; + int num = 0; + u16 tids = 0; + + skb_queue_head_init(&pending); + + while ((skb = __skb_dequeue(&frames))) { + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_hdr *hdr = (void *) skb->data; + u8 *qoshdr = NULL; + + num++; + + /* + * Tell TX path to send this frame even though the + * STA may still remain is PS mode after this frame + * exchange. + */ + info->flags |= IEEE80211_TX_CTL_POLL_RESPONSE; + + /* + * Use MoreData flag to indicate whether there are + * more buffered frames for this STA + */ + if (!more_data) + hdr->frame_control &= + cpu_to_le16(~IEEE80211_FCTL_MOREDATA); + else + hdr->frame_control |= + cpu_to_le16(IEEE80211_FCTL_MOREDATA); + + if (ieee80211_is_data_qos(hdr->frame_control) || + ieee80211_is_qos_nullfunc(hdr->frame_control)) + qoshdr = ieee80211_get_qos_ctl(hdr); + + /* set EOSP for the frame */ + if (reason == IEEE80211_FRAME_RELEASE_UAPSD && + qoshdr && skb_queue_empty(&frames)) + *qoshdr |= IEEE80211_QOS_CTL_EOSP; + + info->flags |= IEEE80211_TX_STATUS_EOSP | + IEEE80211_TX_CTL_REQ_TX_STATUS; + + if (qoshdr) + tids |= BIT(*qoshdr & IEEE80211_QOS_CTL_TID_MASK); + else + tids |= BIT(0); + + __skb_queue_tail(&pending, skb); + } - if (no_pending_pkts) - sta_info_clear_tim_bit(sta); -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG + drv_allow_buffered_frames(local, sta, tids, num, + reason, more_data); + + ieee80211_add_pending_skbs(local, &pending); + + sta_info_recalc_tim(sta); } else { /* - * FIXME: This can be the result of a race condition between - * us expiring a frame and the station polling for it. - * Should we send it a null-func frame indicating we - * have nothing buffered for it? + * We need to release a frame that is buffered somewhere in the + * driver ... it'll have to handle that. + * Note that, as per the comment above, it'll also have to see + * if there is more than just one frame on the specific TID that + * we're releasing from, and it needs to set the more-data bit + * accordingly if we tell it that there's no more data. If we do + * tell it there's more data, then of course the more-data bit + * needs to be set anyway. + */ + drv_release_buffered_frames(local, sta, driver_release_tids, + n_frames, reason, more_data); + + /* + * Note that we don't recalculate the TIM bit here as it would + * most likely have no effect at all unless the driver told us + * that the TID became empty before returning here from the + * release function. + * Either way, however, when the driver tells us that the TID + * became empty we'll do the TIM recalculation. */ - printk(KERN_DEBUG "%s: STA %pM sent PS Poll even " - "though there are no buffered frames for it\n", - sdata->name, sta->sta.addr); -#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ } } +void ieee80211_sta_ps_deliver_poll_response(struct sta_info *sta) +{ + u8 ignore_for_response = sta->sta.uapsd_queues; + + /* + * If all ACs are delivery-enabled then we should reply + * from any of them, if only some are enabled we reply + * only from the non-enabled ones. + */ + if (ignore_for_response == BIT(IEEE80211_NUM_ACS) - 1) + ignore_for_response = 0; + + ieee80211_sta_ps_deliver_response(sta, 1, ignore_for_response, + IEEE80211_FRAME_RELEASE_PSPOLL); +} + +void ieee80211_sta_ps_deliver_uapsd(struct sta_info *sta) +{ + int n_frames = sta->sta.max_sp; + u8 delivery_enabled = sta->sta.uapsd_queues; + + /* + * If we ever grow support for TSPEC this might happen if + * the TSPEC update from hostapd comes in between a trigger + * frame setting WLAN_STA_UAPSD in the RX path and this + * actually getting called. + */ + if (!delivery_enabled) + return; + + switch (sta->sta.max_sp) { + case 1: + n_frames = 2; + break; + case 2: + n_frames = 4; + break; + case 3: + n_frames = 6; + break; + case 0: + /* XXX: what is a good value? */ + n_frames = 8; + break; + } + + ieee80211_sta_ps_deliver_response(sta, n_frames, ~delivery_enabled, + IEEE80211_FRAME_RELEASE_UAPSD); +} + void ieee80211_sta_block_awake(struct ieee80211_hw *hw, struct ieee80211_sta *pubsta, bool block) { @@ -1111,17 +1472,50 @@ void ieee80211_sta_block_awake(struct ieee80211_hw *hw, trace_api_sta_block_awake(sta->local, pubsta, block); if (block) - set_sta_flags(sta, WLAN_STA_PS_DRIVER); - else if (test_sta_flags(sta, WLAN_STA_PS_DRIVER)) + set_sta_flag(sta, WLAN_STA_PS_DRIVER); + else if (test_sta_flag(sta, WLAN_STA_PS_DRIVER)) ieee80211_queue_work(hw, &sta->drv_unblock_wk); } EXPORT_SYMBOL(ieee80211_sta_block_awake); -void ieee80211_sta_set_tim(struct ieee80211_sta *pubsta) +void ieee80211_sta_eosp_irqsafe(struct ieee80211_sta *pubsta) +{ + struct sta_info *sta = container_of(pubsta, struct sta_info, sta); + struct ieee80211_local *local = sta->local; + struct sk_buff *skb; + struct skb_eosp_msg_data *data; + + trace_api_eosp(local, pubsta); + + skb = alloc_skb(0, GFP_ATOMIC); + if (!skb) { + /* too bad ... but race is better than loss */ + clear_sta_flag(sta, WLAN_STA_SP); + return; + } + + data = (void *)skb->cb; + memcpy(data->sta, pubsta->addr, ETH_ALEN); + memcpy(data->iface, sta->sdata->vif.addr, ETH_ALEN); + skb->pkt_type = IEEE80211_EOSP_MSG; + skb_queue_tail(&local->skb_queue, skb); + tasklet_schedule(&local->tasklet); +} +EXPORT_SYMBOL(ieee80211_sta_eosp_irqsafe); + +void ieee80211_sta_set_buffered(struct ieee80211_sta *pubsta, + u8 tid, bool buffered) { struct sta_info *sta = container_of(pubsta, struct sta_info, sta); - set_sta_flags(sta, WLAN_STA_PS_DRIVER_BUF); - sta_info_set_tim_bit(sta); + if (WARN_ON(tid >= STA_TID_NUM)) + return; + + if (buffered) + set_bit(tid, &sta->driver_buffered_tids); + else + clear_bit(tid, &sta->driver_buffered_tids); + + sta_info_recalc_tim(sta); } -EXPORT_SYMBOL(ieee80211_sta_set_tim); +EXPORT_SYMBOL(ieee80211_sta_set_buffered); diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 56a3d38a2cd1..8c8ce05ad26f 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -19,7 +19,8 @@ /** * enum ieee80211_sta_info_flags - Stations flags * - * These flags are used with &struct sta_info's @flags member. + * These flags are used with &struct sta_info's @flags member, but + * only indirectly with set_sta_flag() and friends. * * @WLAN_STA_AUTH: Station is authenticated. * @WLAN_STA_ASSOC: Station is associated. @@ -43,24 +44,33 @@ * be in the queues * @WLAN_STA_PSPOLL: Station sent PS-poll while driver was keeping * station in power-save mode, reply when the driver unblocks. - * @WLAN_STA_PS_DRIVER_BUF: Station has frames pending in driver internal - * buffers. Automatically cleared on station wake-up. + * @WLAN_STA_TDLS_PEER: Station is a TDLS peer. + * @WLAN_STA_TDLS_PEER_AUTH: This TDLS peer is authorized to send direct + * packets. This means the link is enabled. + * @WLAN_STA_UAPSD: Station requested unscheduled SP while driver was + * keeping station in power-save mode, reply when the driver + * unblocks the station. + * @WLAN_STA_SP: Station is in a service period, so don't try to + * reply to other uAPSD trigger frames or PS-Poll. */ enum ieee80211_sta_info_flags { - WLAN_STA_AUTH = 1<<0, - WLAN_STA_ASSOC = 1<<1, - WLAN_STA_PS_STA = 1<<2, - WLAN_STA_AUTHORIZED = 1<<3, - WLAN_STA_SHORT_PREAMBLE = 1<<4, - WLAN_STA_ASSOC_AP = 1<<5, - WLAN_STA_WME = 1<<6, - WLAN_STA_WDS = 1<<7, - WLAN_STA_CLEAR_PS_FILT = 1<<9, - WLAN_STA_MFP = 1<<10, - WLAN_STA_BLOCK_BA = 1<<11, - WLAN_STA_PS_DRIVER = 1<<12, - WLAN_STA_PSPOLL = 1<<13, - WLAN_STA_PS_DRIVER_BUF = 1<<14, + WLAN_STA_AUTH, + WLAN_STA_ASSOC, + WLAN_STA_PS_STA, + WLAN_STA_AUTHORIZED, + WLAN_STA_SHORT_PREAMBLE, + WLAN_STA_ASSOC_AP, + WLAN_STA_WME, + WLAN_STA_WDS, + WLAN_STA_CLEAR_PS_FILT, + WLAN_STA_MFP, + WLAN_STA_BLOCK_BA, + WLAN_STA_PS_DRIVER, + WLAN_STA_PSPOLL, + WLAN_STA_TDLS_PEER, + WLAN_STA_TDLS_PEER_AUTH, + WLAN_STA_UAPSD, + WLAN_STA_SP, }; #define STA_TID_NUM 16 @@ -203,15 +213,16 @@ struct sta_ampdu_mlme { * @last_rx_rate_flag: rx status flag of the last data packet * @lock: used for locking all fields that require locking, see comments * in the header file. - * @flaglock: spinlock for flags accesses * @drv_unblock_wk: used for driver PS unblocking * @listen_interval: listen interval of this station, when we're acting as AP - * @flags: STA flags, see &enum ieee80211_sta_info_flags - * @ps_tx_buf: buffer of frames to transmit to this station - * when it leaves power saving state - * @tx_filtered: buffer of frames we already tried to transmit - * but were filtered by hardware due to STA having entered - * power saving state + * @_flags: STA flags, see &enum ieee80211_sta_info_flags, do not use directly + * @ps_tx_buf: buffers (per AC) of frames to transmit to this station + * when it leaves power saving state or polls + * @tx_filtered: buffers (per AC) of frames we already tried to + * transmit but were filtered by hardware due to STA having + * entered power saving state, these are also delivered to + * the station when it leaves powersave or polls for frames + * @driver_buffered_tids: bitmap of TIDs the driver has data buffered on * @rx_packets: Number of MSDUs received from this STA * @rx_bytes: Number of bytes received from this STA * @wep_weak_iv_count: number of weak WEP IVs received from this station @@ -261,7 +272,6 @@ struct sta_info { struct rate_control_ref *rate_ctrl; void *rate_ctrl_priv; spinlock_t lock; - spinlock_t flaglock; struct work_struct drv_unblock_wk; @@ -271,18 +281,16 @@ struct sta_info { bool uploaded; - /* - * frequently updated, locked with own spinlock (flaglock), - * use the accessors defined below - */ - u32 flags; + /* use the accessors defined below */ + unsigned long _flags; /* * STA powersave frame queues, no more than the internal * locking required. */ - struct sk_buff_head ps_tx_buf; - struct sk_buff_head tx_filtered; + struct sk_buff_head ps_tx_buf[IEEE80211_NUM_ACS]; + struct sk_buff_head tx_filtered[IEEE80211_NUM_ACS]; + unsigned long driver_buffered_tids; /* Updated from RX path only, no locking requirements */ unsigned long rx_packets, rx_bytes; @@ -358,60 +366,28 @@ static inline enum nl80211_plink_state sta_plink_state(struct sta_info *sta) return NL80211_PLINK_LISTEN; } -static inline void set_sta_flags(struct sta_info *sta, const u32 flags) +static inline void set_sta_flag(struct sta_info *sta, + enum ieee80211_sta_info_flags flag) { - unsigned long irqfl; - - spin_lock_irqsave(&sta->flaglock, irqfl); - sta->flags |= flags; - spin_unlock_irqrestore(&sta->flaglock, irqfl); + set_bit(flag, &sta->_flags); } -static inline void clear_sta_flags(struct sta_info *sta, const u32 flags) +static inline void clear_sta_flag(struct sta_info *sta, + enum ieee80211_sta_info_flags flag) { - unsigned long irqfl; - - spin_lock_irqsave(&sta->flaglock, irqfl); - sta->flags &= ~flags; - spin_unlock_irqrestore(&sta->flaglock, irqfl); + clear_bit(flag, &sta->_flags); } -static inline u32 test_sta_flags(struct sta_info *sta, const u32 flags) +static inline int test_sta_flag(struct sta_info *sta, + enum ieee80211_sta_info_flags flag) { - u32 ret; - unsigned long irqfl; - - spin_lock_irqsave(&sta->flaglock, irqfl); - ret = sta->flags & flags; - spin_unlock_irqrestore(&sta->flaglock, irqfl); - - return ret; + return test_bit(flag, &sta->_flags); } -static inline u32 test_and_clear_sta_flags(struct sta_info *sta, - const u32 flags) +static inline int test_and_clear_sta_flag(struct sta_info *sta, + enum ieee80211_sta_info_flags flag) { - u32 ret; - unsigned long irqfl; - - spin_lock_irqsave(&sta->flaglock, irqfl); - ret = sta->flags & flags; - sta->flags &= ~flags; - spin_unlock_irqrestore(&sta->flaglock, irqfl); - - return ret; -} - -static inline u32 get_sta_flags(struct sta_info *sta) -{ - u32 ret; - unsigned long irqfl; - - spin_lock_irqsave(&sta->flaglock, irqfl); - ret = sta->flags; - spin_unlock_irqrestore(&sta->flaglock, irqfl); - - return ret; + return test_and_clear_bit(flag, &sta->_flags); } void ieee80211_assign_tid_tx(struct sta_info *sta, int tid, @@ -429,8 +405,8 @@ rcu_dereference_protected_tid_tx(struct sta_info *sta, int tid) #define STA_HASH(sta) (sta[5]) -/* Maximum number of frames to buffer per power saving station */ -#define STA_MAX_TX_BUFFER 128 +/* Maximum number of frames to buffer per power saving station per AC */ +#define STA_MAX_TX_BUFFER 64 /* Minimum buffered frame expiry time. If STA uses listen interval that is * smaller than this value, the minimum value here is used instead. */ @@ -523,8 +499,7 @@ int sta_info_destroy_addr(struct ieee80211_sub_if_data *sdata, int sta_info_destroy_addr_bss(struct ieee80211_sub_if_data *sdata, const u8 *addr); -void sta_info_set_tim_bit(struct sta_info *sta); -void sta_info_clear_tim_bit(struct sta_info *sta); +void sta_info_recalc_tim(struct sta_info *sta); void sta_info_init(struct ieee80211_local *local); void sta_info_stop(struct ieee80211_local *local); @@ -535,5 +510,6 @@ void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata, void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta); void ieee80211_sta_ps_deliver_poll_response(struct sta_info *sta); +void ieee80211_sta_ps_deliver_uapsd(struct sta_info *sta); #endif /* STA_INFO_H */ diff --git a/net/mac80211/status.c b/net/mac80211/status.c index d50358c45ab0..864a9c3bcf46 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -14,6 +14,7 @@ #include "rate.h" #include "mesh.h" #include "led.h" +#include "wme.h" void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw, @@ -43,6 +44,8 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local, struct sk_buff *skb) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_hdr *hdr = (void *)skb->data; + int ac; /* * This skb 'survived' a round-trip through the driver, and @@ -63,11 +66,37 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local, sta->tx_filtered_count++; /* + * Clear more-data bit on filtered frames, it might be set + * but later frames might time out so it might have to be + * clear again ... It's all rather unlikely (this frame + * should time out first, right?) but let's not confuse + * peers unnecessarily. + */ + if (hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) + hdr->frame_control &= ~cpu_to_le16(IEEE80211_FCTL_MOREDATA); + + if (ieee80211_is_data_qos(hdr->frame_control)) { + u8 *p = ieee80211_get_qos_ctl(hdr); + int tid = *p & IEEE80211_QOS_CTL_TID_MASK; + + /* + * Clear EOSP if set, this could happen e.g. + * if an absence period (us being a P2P GO) + * shortens the SP. + */ + if (*p & IEEE80211_QOS_CTL_EOSP) + *p &= ~IEEE80211_QOS_CTL_EOSP; + ac = ieee802_1d_to_ac[tid & 7]; + } else { + ac = IEEE80211_AC_BE; + } + + /* * Clear the TX filter mask for this STA when sending the next * packet. If the STA went to power save mode, this will happen * when it wakes up for the next time. */ - set_sta_flags(sta, WLAN_STA_CLEAR_PS_FILT); + set_sta_flag(sta, WLAN_STA_CLEAR_PS_FILT); /* * This code races in the following way: @@ -103,13 +132,19 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local, * changes before calling TX status events if ordering can be * unknown. */ - if (test_sta_flags(sta, WLAN_STA_PS_STA) && - skb_queue_len(&sta->tx_filtered) < STA_MAX_TX_BUFFER) { - skb_queue_tail(&sta->tx_filtered, skb); + if (test_sta_flag(sta, WLAN_STA_PS_STA) && + skb_queue_len(&sta->tx_filtered[ac]) < STA_MAX_TX_BUFFER) { + skb_queue_tail(&sta->tx_filtered[ac], skb); + sta_info_recalc_tim(sta); + + if (!timer_pending(&local->sta_cleanup)) + mod_timer(&local->sta_cleanup, + round_jiffies(jiffies + + STA_INFO_CLEANUP_INTERVAL)); return; } - if (!test_sta_flags(sta, WLAN_STA_PS_STA) && + if (!test_sta_flag(sta, WLAN_STA_PS_STA) && !(info->flags & IEEE80211_TX_INTFL_RETRIED)) { /* Software retry the packet once */ info->flags |= IEEE80211_TX_INTFL_RETRIED; @@ -121,8 +156,8 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local, if (net_ratelimit()) wiphy_debug(local->hw.wiphy, "dropped TX filtered frame, queue_len=%d PS=%d @%lu\n", - skb_queue_len(&sta->tx_filtered), - !!test_sta_flags(sta, WLAN_STA_PS_STA), jiffies); + skb_queue_len(&sta->tx_filtered[ac]), + !!test_sta_flag(sta, WLAN_STA_PS_STA), jiffies); #endif dev_kfree_skb(skb); } @@ -249,8 +284,11 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) if (memcmp(hdr->addr2, sta->sdata->vif.addr, ETH_ALEN)) continue; + if (info->flags & IEEE80211_TX_STATUS_EOSP) + clear_sta_flag(sta, WLAN_STA_SP); + acked = !!(info->flags & IEEE80211_TX_STAT_ACK); - if (!acked && test_sta_flags(sta, WLAN_STA_PS_STA)) { + if (!acked && test_sta_flag(sta, WLAN_STA_PS_STA)) { /* * The STA is in power save mode, so assume * that this TX packet failed because of that. diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 7cd6c28968b2..ad2ee4a90ec4 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -253,7 +253,7 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx) struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); - u32 sta_flags; + bool assoc = false; if (unlikely(info->flags & IEEE80211_TX_CTL_INJECTED)) return TX_CONTINUE; @@ -284,10 +284,11 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx) if (tx->flags & IEEE80211_TX_PS_BUFFERED) return TX_CONTINUE; - sta_flags = tx->sta ? get_sta_flags(tx->sta) : 0; + if (tx->sta) + assoc = test_sta_flag(tx->sta, WLAN_STA_ASSOC); if (likely(tx->flags & IEEE80211_TX_UNICAST)) { - if (unlikely(!(sta_flags & WLAN_STA_ASSOC) && + if (unlikely(!assoc && tx->sdata->vif.type != NL80211_IFTYPE_ADHOC && ieee80211_is_data(hdr->frame_control))) { #ifdef CONFIG_MAC80211_VERBOSE_DEBUG @@ -343,13 +344,22 @@ static void purge_old_ps_buffers(struct ieee80211_local *local) total += skb_queue_len(&ap->ps_bc_buf); } + /* + * Drop one frame from each station from the lowest-priority + * AC that has frames at all. + */ list_for_each_entry_rcu(sta, &local->sta_list, list) { - skb = skb_dequeue(&sta->ps_tx_buf); - if (skb) { - purged++; - dev_kfree_skb(skb); + int ac; + + for (ac = IEEE80211_AC_BK; ac >= IEEE80211_AC_VO; ac--) { + skb = skb_dequeue(&sta->ps_tx_buf[ac]); + total += skb_queue_len(&sta->ps_tx_buf[ac]); + if (skb) { + purged++; + dev_kfree_skb(skb); + break; + } } - total += skb_queue_len(&sta->ps_tx_buf); } rcu_read_unlock(); @@ -418,7 +428,7 @@ static int ieee80211_use_mfp(__le16 fc, struct sta_info *sta, if (!ieee80211_is_mgmt(fc)) return 0; - if (sta == NULL || !test_sta_flags(sta, WLAN_STA_MFP)) + if (sta == NULL || !test_sta_flag(sta, WLAN_STA_MFP)) return 0; if (!ieee80211_is_robust_mgmt_frame((struct ieee80211_hdr *) @@ -435,7 +445,6 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx) struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; struct ieee80211_local *local = tx->local; - u32 staflags; if (unlikely(!sta || ieee80211_is_probe_resp(hdr->frame_control) || @@ -444,57 +453,52 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx) ieee80211_is_reassoc_resp(hdr->frame_control))) return TX_CONTINUE; - staflags = get_sta_flags(sta); + if (unlikely((test_sta_flag(sta, WLAN_STA_PS_STA) || + test_sta_flag(sta, WLAN_STA_PS_DRIVER)) && + !(info->flags & IEEE80211_TX_CTL_POLL_RESPONSE))) { + int ac = skb_get_queue_mapping(tx->skb); - if (unlikely((staflags & (WLAN_STA_PS_STA | WLAN_STA_PS_DRIVER)) && - !(info->flags & IEEE80211_TX_CTL_PSPOLL_RESPONSE))) { #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "STA %pM aid %d: PS buffer (entries " - "before %d)\n", - sta->sta.addr, sta->sta.aid, - skb_queue_len(&sta->ps_tx_buf)); + printk(KERN_DEBUG "STA %pM aid %d: PS buffer for AC %d\n", + sta->sta.addr, sta->sta.aid, ac); #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER) purge_old_ps_buffers(tx->local); - if (skb_queue_len(&sta->ps_tx_buf) >= STA_MAX_TX_BUFFER) { - struct sk_buff *old = skb_dequeue(&sta->ps_tx_buf); + if (skb_queue_len(&sta->ps_tx_buf[ac]) >= STA_MAX_TX_BUFFER) { + struct sk_buff *old = skb_dequeue(&sta->ps_tx_buf[ac]); #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: STA %pM TX " - "buffer full - dropping oldest frame\n", - tx->sdata->name, sta->sta.addr); - } + if (net_ratelimit()) + printk(KERN_DEBUG "%s: STA %pM TX buffer for " + "AC %d full - dropping oldest frame\n", + tx->sdata->name, sta->sta.addr, ac); #endif dev_kfree_skb(old); } else tx->local->total_ps_buffered++; - /* - * Queue frame to be sent after STA wakes up/polls, - * but don't set the TIM bit if the driver is blocking - * wakeup or poll response transmissions anyway. - */ - if (skb_queue_empty(&sta->ps_tx_buf) && - !(staflags & WLAN_STA_PS_DRIVER)) - sta_info_set_tim_bit(sta); - info->control.jiffies = jiffies; info->control.vif = &tx->sdata->vif; info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING; - skb_queue_tail(&sta->ps_tx_buf, tx->skb); + skb_queue_tail(&sta->ps_tx_buf[ac], tx->skb); if (!timer_pending(&local->sta_cleanup)) mod_timer(&local->sta_cleanup, round_jiffies(jiffies + STA_INFO_CLEANUP_INTERVAL)); + /* + * We queued up some frames, so the TIM bit might + * need to be set, recalculate it. + */ + sta_info_recalc_tim(sta); + return TX_QUEUED; } #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - else if (unlikely(staflags & WLAN_STA_PS_STA)) { - printk(KERN_DEBUG "%s: STA %pM in PS mode, but pspoll " - "set -> send frame\n", tx->sdata->name, - sta->sta.addr); + else if (unlikely(test_sta_flag(sta, WLAN_STA_PS_STA))) { + printk(KERN_DEBUG + "%s: STA %pM in PS mode, but polling/in SP -> send frame\n", + tx->sdata->name, sta->sta.addr); } #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ @@ -552,7 +556,7 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx) !(info->flags & IEEE80211_TX_CTL_INJECTED) && (!ieee80211_is_robust_mgmt_frame(hdr) || (ieee80211_is_action(hdr->frame_control) && - tx->sta && test_sta_flags(tx->sta, WLAN_STA_MFP)))) { + tx->sta && test_sta_flag(tx->sta, WLAN_STA_MFP)))) { I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted); return TX_DROP; } else @@ -611,7 +615,7 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx) u32 len; bool inval = false, rts = false, short_preamble = false; struct ieee80211_tx_rate_control txrc; - u32 sta_flags; + bool assoc = false; memset(&txrc, 0, sizeof(txrc)); @@ -647,17 +651,17 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx) */ if (tx->sdata->vif.bss_conf.use_short_preamble && (ieee80211_is_data(hdr->frame_control) || - (tx->sta && test_sta_flags(tx->sta, WLAN_STA_SHORT_PREAMBLE)))) + (tx->sta && test_sta_flag(tx->sta, WLAN_STA_SHORT_PREAMBLE)))) txrc.short_preamble = short_preamble = true; - sta_flags = tx->sta ? get_sta_flags(tx->sta) : 0; + if (tx->sta) + assoc = test_sta_flag(tx->sta, WLAN_STA_ASSOC); /* * Lets not bother rate control if we're associated and cannot * talk to the sta. This should not happen. */ - if (WARN(test_bit(SCAN_SW_SCANNING, &tx->local->scanning) && - (sta_flags & WLAN_STA_ASSOC) && + if (WARN(test_bit(SCAN_SW_SCANNING, &tx->local->scanning) && assoc && !rate_usable_index_exists(sband, &tx->sta->sta), "%s: Dropped data frame as no usable bitrate found while " "scanning and associated. Target station: " @@ -800,6 +804,9 @@ ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx) if (ieee80211_hdrlen(hdr->frame_control) < 24) return TX_CONTINUE; + if (ieee80211_is_qos_nullfunc(hdr->frame_control)) + return TX_CONTINUE; + /* * Anything but QoS data that has a sequence number field * (is long enough) gets a sequence number from the global @@ -1047,6 +1054,7 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx, struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len, NULL); + u16 txflags; info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; tx->flags &= ~IEEE80211_TX_FRAGMENTED; @@ -1095,6 +1103,13 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx, tx->flags |= IEEE80211_TX_FRAGMENTED; break; + case IEEE80211_RADIOTAP_TX_FLAGS: + txflags = le16_to_cpu(get_unaligned((__le16*) + iterator.this_arg)); + if (txflags & IEEE80211_RADIOTAP_F_TX_NOACK) + info->flags |= IEEE80211_TX_CTL_NO_ACK; + break; + /* * Please update the file * Documentation/networking/mac80211-injection.txt @@ -1232,6 +1247,7 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata, tx->sta = sta_info_get(sdata, hdr->addr1); if (tx->sta && ieee80211_is_data_qos(hdr->frame_control) && + !ieee80211_is_qos_nullfunc(hdr->frame_control) && (local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION) && !(local->hw.flags & IEEE80211_HW_TX_AMPDU_SETUP_IN_HW)) { struct tid_ampdu_tx *tid_tx; @@ -1258,8 +1274,11 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata, tx->flags |= IEEE80211_TX_UNICAST; if (unlikely(local->wifi_wme_noack_test)) info->flags |= IEEE80211_TX_CTL_NO_ACK; - else - info->flags &= ~IEEE80211_TX_CTL_NO_ACK; + /* + * Flags are initialized to 0. Hence, no need to + * explicitly unset IEEE80211_TX_CTL_NO_ACK since + * it might already be set for injected frames. + */ } if (tx->flags & IEEE80211_TX_FRAGMENTED) { @@ -1273,7 +1292,7 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata, if (!tx->sta) info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT; - else if (test_and_clear_sta_flags(tx->sta, WLAN_STA_CLEAR_PS_FILT)) + else if (test_and_clear_sta_flag(tx->sta, WLAN_STA_CLEAR_PS_FILT)) info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT; hdrlen = ieee80211_hdrlen(hdr->frame_control); @@ -1515,8 +1534,7 @@ static int ieee80211_skb_resize(struct ieee80211_sub_if_data *sdata, return 0; } -static void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, - struct sk_buff *skb) +void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { struct ieee80211_local *local = sdata->local; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); @@ -1724,8 +1742,9 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, int encaps_len, skip_header_bytes; int nh_pos, h_pos; struct sta_info *sta = NULL; - u32 sta_flags = 0; + bool wme_sta = false, authorized = false, tdls_auth = false; struct sk_buff *tmp_skb; + bool tdls_direct = false; if (unlikely(skb->len < ETH_HLEN)) { ret = NETDEV_TX_OK; @@ -1749,7 +1768,8 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, memcpy(hdr.addr3, skb->data, ETH_ALEN); memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN); hdrlen = 30; - sta_flags = get_sta_flags(sta); + authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED); + wme_sta = test_sta_flag(sta, WLAN_STA_WME); } rcu_read_unlock(); if (sta) @@ -1837,11 +1857,50 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, break; #endif case NL80211_IFTYPE_STATION: - memcpy(hdr.addr1, sdata->u.mgd.bssid, ETH_ALEN); - if (sdata->u.mgd.use_4addr && - cpu_to_be16(ethertype) != sdata->control_port_protocol) { - fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS); + if (sdata->wdev.wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) { + bool tdls_peer = false; + + rcu_read_lock(); + sta = sta_info_get(sdata, skb->data); + if (sta) { + authorized = test_sta_flag(sta, + WLAN_STA_AUTHORIZED); + wme_sta = test_sta_flag(sta, WLAN_STA_WME); + tdls_peer = test_sta_flag(sta, + WLAN_STA_TDLS_PEER); + tdls_auth = test_sta_flag(sta, + WLAN_STA_TDLS_PEER_AUTH); + } + rcu_read_unlock(); + + /* + * If the TDLS link is enabled, send everything + * directly. Otherwise, allow TDLS setup frames + * to be transmitted indirectly. + */ + tdls_direct = tdls_peer && (tdls_auth || + !(ethertype == ETH_P_TDLS && skb->len > 14 && + skb->data[14] == WLAN_TDLS_SNAP_RFTYPE)); + } + + if (tdls_direct) { + /* link during setup - throw out frames to peer */ + if (!tdls_auth) { + ret = NETDEV_TX_OK; + goto fail; + } + + /* DA SA BSSID */ + memcpy(hdr.addr1, skb->data, ETH_ALEN); + memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN); + memcpy(hdr.addr3, sdata->u.mgd.bssid, ETH_ALEN); + hdrlen = 24; + } else if (sdata->u.mgd.use_4addr && + cpu_to_be16(ethertype) != sdata->control_port_protocol) { + fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | + IEEE80211_FCTL_TODS); /* RA TA DA SA */ + memcpy(hdr.addr1, sdata->u.mgd.bssid, ETH_ALEN); memcpy(hdr.addr2, sdata->vif.addr, ETH_ALEN); memcpy(hdr.addr3, skb->data, ETH_ALEN); memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN); @@ -1849,6 +1908,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, } else { fc |= cpu_to_le16(IEEE80211_FCTL_TODS); /* BSSID SA DA */ + memcpy(hdr.addr1, sdata->u.mgd.bssid, ETH_ALEN); memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN); memcpy(hdr.addr3, skb->data, ETH_ALEN); hdrlen = 24; @@ -1874,17 +1934,19 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, if (!is_multicast_ether_addr(hdr.addr1)) { rcu_read_lock(); sta = sta_info_get(sdata, hdr.addr1); - if (sta) - sta_flags = get_sta_flags(sta); + if (sta) { + authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED); + wme_sta = test_sta_flag(sta, WLAN_STA_WME); + } rcu_read_unlock(); } /* For mesh, the use of the QoS header is mandatory */ if (ieee80211_vif_is_mesh(&sdata->vif)) - sta_flags |= WLAN_STA_WME; + wme_sta = true; /* receiver and we are QoS enabled, use a QoS type frame */ - if ((sta_flags & WLAN_STA_WME) && local->hw.queues >= 4) { + if (wme_sta && local->hw.queues >= 4) { fc |= cpu_to_le16(IEEE80211_STYPE_QOS_DATA); hdrlen += 2; } @@ -1894,8 +1956,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, * EAPOL frames from the local station. */ if (!ieee80211_vif_is_mesh(&sdata->vif) && - unlikely(!is_multicast_ether_addr(hdr.addr1) && - !(sta_flags & WLAN_STA_AUTHORIZED) && + unlikely(!is_multicast_ether_addr(hdr.addr1) && !authorized && !(cpu_to_be16(ethertype) == sdata->control_port_protocol && compare_ether_addr(sdata->vif.addr, skb->data + ETH_ALEN) == 0))) { @@ -2307,9 +2368,9 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw, *pos++ = WLAN_EID_SSID; *pos++ = 0x0; - if (mesh_add_srates_ie(skb, sdata) || + if (ieee80211_add_srates_ie(&sdata->vif, skb) || mesh_add_ds_params_ie(skb, sdata) || - mesh_add_ext_srates_ie(skb, sdata) || + ieee80211_add_ext_srates_ie(&sdata->vif, skb) || mesh_add_rsn_ie(skb, sdata) || mesh_add_meshid_ie(skb, sdata) || mesh_add_meshconf_ie(skb, sdata) || diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 2c9dc360dc6d..7439d26bf5f9 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -367,14 +367,14 @@ void ieee80211_add_pending_skb(struct ieee80211_local *local, spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); } -int ieee80211_add_pending_skbs_fn(struct ieee80211_local *local, - struct sk_buff_head *skbs, - void (*fn)(void *data), void *data) +void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local, + struct sk_buff_head *skbs, + void (*fn)(void *data), void *data) { struct ieee80211_hw *hw = &local->hw; struct sk_buff *skb; unsigned long flags; - int queue, ret = 0, i; + int queue, i; spin_lock_irqsave(&local->queue_stop_reason_lock, flags); for (i = 0; i < hw->queues; i++) @@ -389,7 +389,6 @@ int ieee80211_add_pending_skbs_fn(struct ieee80211_local *local, continue; } - ret++; queue = skb_get_queue_mapping(skb); __skb_queue_tail(&local->pending[queue], skb); } @@ -401,14 +400,12 @@ int ieee80211_add_pending_skbs_fn(struct ieee80211_local *local, __ieee80211_wake_queue(hw, i, IEEE80211_QUEUE_STOP_REASON_SKB_ADD); spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); - - return ret; } -int ieee80211_add_pending_skbs(struct ieee80211_local *local, - struct sk_buff_head *skbs) +void ieee80211_add_pending_skbs(struct ieee80211_local *local, + struct sk_buff_head *skbs) { - return ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL); + ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL); } void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, @@ -1125,7 +1122,7 @@ int ieee80211_reconfig(struct ieee80211_local *local) list_for_each_entry(sta, &local->sta_list, list) { ieee80211_sta_tear_down_BA_sessions(sta, true); - clear_sta_flags(sta, WLAN_STA_BLOCK_BA); + clear_sta_flag(sta, WLAN_STA_BLOCK_BA); } mutex_unlock(&local->sta_mtx); @@ -1364,3 +1361,60 @@ void ieee80211_disable_rssi_reports(struct ieee80211_vif *vif) _ieee80211_enable_rssi_reports(sdata, 0, 0); } EXPORT_SYMBOL(ieee80211_disable_rssi_reports); + +int ieee80211_add_srates_ie(struct ieee80211_vif *vif, struct sk_buff *skb) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_local *local = sdata->local; + struct ieee80211_supported_band *sband; + int rate; + u8 i, rates, *pos; + + sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; + rates = sband->n_bitrates; + if (rates > 8) + rates = 8; + + if (skb_tailroom(skb) < rates + 2) + return -ENOMEM; + + pos = skb_put(skb, rates + 2); + *pos++ = WLAN_EID_SUPP_RATES; + *pos++ = rates; + for (i = 0; i < rates; i++) { + rate = sband->bitrates[i].bitrate; + *pos++ = (u8) (rate / 5); + } + + return 0; +} + +int ieee80211_add_ext_srates_ie(struct ieee80211_vif *vif, struct sk_buff *skb) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_local *local = sdata->local; + struct ieee80211_supported_band *sband; + int rate; + u8 i, exrates, *pos; + + sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; + exrates = sband->n_bitrates; + if (exrates > 8) + exrates -= 8; + else + exrates = 0; + + if (skb_tailroom(skb) < exrates + 2) + return -ENOMEM; + + if (exrates) { + pos = skb_put(skb, exrates + 2); + *pos++ = WLAN_EID_EXT_SUPP_RATES; + *pos++ = exrates; + for (i = 8; i < sband->n_bitrates; i++) { + rate = sband->bitrates[i].bitrate; + *pos++ = (u8) (rate / 5); + } + } + return 0; +} diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c index 971004c9b04f..fd52e695c071 100644 --- a/net/mac80211/wme.c +++ b/net/mac80211/wme.c @@ -72,7 +72,7 @@ u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata, case NL80211_IFTYPE_AP_VLAN: sta = rcu_dereference(sdata->u.vlan.sta); if (sta) { - qos = get_sta_flags(sta) & WLAN_STA_WME; + qos = test_sta_flag(sta, WLAN_STA_WME); break; } case NL80211_IFTYPE_AP: @@ -99,7 +99,7 @@ u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata, if (!sta && ra && !is_multicast_ether_addr(ra)) { sta = sta_info_get(sdata, ra); if (sta) - qos = get_sta_flags(sta) & WLAN_STA_WME; + qos = test_sta_flag(sta, WLAN_STA_WME); } rcu_read_unlock(); diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c index 256c5ddd2d72..128677d69056 100644 --- a/net/rfkill/rfkill-gpio.c +++ b/net/rfkill/rfkill-gpio.c @@ -101,6 +101,14 @@ static int rfkill_gpio_probe(struct platform_device *pdev) if (!rfkill) return -ENOMEM; + if (pdata->gpio_runtime_setup) { + ret = pdata->gpio_runtime_setup(pdev); + if (ret) { + pr_warn("%s: can't set up gpio\n", __func__); + return ret; + } + } + rfkill->pdata = pdata; len = strlen(pdata->name); @@ -182,7 +190,10 @@ fail_alloc: static int rfkill_gpio_remove(struct platform_device *pdev) { struct rfkill_gpio_data *rfkill = platform_get_drvdata(pdev); + struct rfkill_gpio_platform_data *pdata = pdev->dev.platform_data; + if (pdata->gpio_runtime_close) + pdata->gpio_runtime_close(pdev); rfkill_unregister(rfkill->rfkill_dev); rfkill_destroy(rfkill->rfkill_dev); if (gpio_is_valid(rfkill->pdata->shutdown_gpio)) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index b85075761e24..edf655aeea00 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -192,6 +192,11 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG }, [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED }, [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG }, + [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 }, + [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 }, + [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 }, + [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG }, + [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG }, }; /* policy for the key attributes */ @@ -732,9 +737,12 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH); if (dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_AP_UAPSD); - if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) NLA_PUT_FLAG(msg, NL80211_ATTR_ROAM_SUPPORT); + if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) + NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_SUPPORT); + if (dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) + NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP); NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES, sizeof(u32) * dev->wiphy.n_cipher_suites, @@ -877,6 +885,10 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, } CMD(set_channel, SET_CHANNEL); CMD(set_wds_peer, SET_WDS_PEER); + if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) { + CMD(tdls_mgmt, TDLS_MGMT); + CMD(tdls_oper, TDLS_OPER); + } if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) CMD(sched_scan_start, START_SCHED_SCAN); @@ -2518,18 +2530,25 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) break; case NL80211_IFTYPE_P2P_CLIENT: case NL80211_IFTYPE_STATION: - /* disallow everything but AUTHORIZED flag */ + /* disallow things sta doesn't support */ if (params.plink_action) err = -EINVAL; if (params.vlan) err = -EINVAL; - if (params.supported_rates) + if (params.supported_rates && + !(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) err = -EINVAL; if (params.ht_capa) err = -EINVAL; if (params.listen_interval >= 0) err = -EINVAL; - if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) + if (params.sta_flags_mask & + ~(BIT(NL80211_STA_FLAG_AUTHORIZED) | + BIT(NL80211_STA_FLAG_TDLS_PEER))) + err = -EINVAL; + /* can't change the TDLS bit */ + if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) && + (params.sta_flags_mask & BIT(NL80211_STA_FLAG_TDLS_PEER))) err = -EINVAL; break; case NL80211_IFTYPE_MESH_POINT: @@ -2643,12 +2662,25 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) if (params.max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK) return -EINVAL; + + params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD; } if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && - dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) + return -EINVAL; + + /* + * Only managed stations can add TDLS peers, and only when the + * wiphy supports external TDLS setup. + */ + if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_STATION && + !((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) && + (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) && + (rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))) return -EINVAL; err = get_vlan(info, rdev, ¶ms.vlan); @@ -4964,6 +4996,57 @@ static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) return rdev->ops->flush_pmksa(&rdev->wiphy, dev); } +static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + u8 action_code, dialog_token; + u16 status_code; + u8 *peer; + + if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || + !rdev->ops->tdls_mgmt) + return -EOPNOTSUPP; + + if (!info->attrs[NL80211_ATTR_TDLS_ACTION] || + !info->attrs[NL80211_ATTR_STATUS_CODE] || + !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] || + !info->attrs[NL80211_ATTR_IE] || + !info->attrs[NL80211_ATTR_MAC]) + return -EINVAL; + + peer = nla_data(info->attrs[NL80211_ATTR_MAC]); + action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]); + status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]); + dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]); + + return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code, + dialog_token, status_code, + nla_data(info->attrs[NL80211_ATTR_IE]), + nla_len(info->attrs[NL80211_ATTR_IE])); +} + +static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + enum nl80211_tdls_operation operation; + u8 *peer; + + if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || + !rdev->ops->tdls_oper) + return -EOPNOTSUPP; + + if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] || + !info->attrs[NL80211_ATTR_MAC]) + return -EINVAL; + + operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]); + peer = nla_data(info->attrs[NL80211_ATTR_MAC]); + + return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation); +} + static int nl80211_remain_on_channel(struct sk_buff *skb, struct genl_info *info) { @@ -6279,6 +6362,22 @@ static struct genl_ops nl80211_ops[] = { .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, + { + .cmd = NL80211_CMD_TDLS_MGMT, + .doit = nl80211_tdls_mgmt, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, + }, + { + .cmd = NL80211_CMD_TDLS_OPER, + .doit = nl80211_tdls_oper, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, + }, }; static struct genl_multicast_group nl80211_mlme_mcgrp = { diff --git a/net/wireless/util.c b/net/wireless/util.c index 6304ed63588a..2f178f73943f 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -396,8 +396,9 @@ int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr, } break; case cpu_to_le16(0): - if (iftype != NL80211_IFTYPE_ADHOC) - return -1; + if (iftype != NL80211_IFTYPE_ADHOC && + iftype != NL80211_IFTYPE_STATION) + return -1; break; } |