diff options
Diffstat (limited to 'net')
46 files changed, 1960 insertions, 607 deletions
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index 7f5ad8a..3163330 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -623,6 +623,23 @@ encrypt: } EXPORT_SYMBOL(hci_conn_security); +/* Check secure link requirement */ +int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level) +{ + BT_DBG("conn %p", conn); + + if (sec_level != BT_SECURITY_HIGH) + return 1; /* Accept if non-secure is required */ + + if (conn->key_type == HCI_LK_AUTH_COMBINATION || + (conn->key_type == HCI_LK_COMBINATION && + conn->pin_length == 16)) + return 1; + + return 0; /* Reject not secure link */ +} +EXPORT_SYMBOL(hci_conn_check_secure); + /* Change link key */ int hci_conn_change_link_key(struct hci_conn *conn) { diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index d5aa97e..f13ddbf 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -1440,7 +1440,7 @@ static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff conn->state = BT_CLOSED; - if (conn->type == ACL_LINK) + if (conn->type == ACL_LINK || conn->type == LE_LINK) mgmt_disconnected(hdev->id, &conn->dst); hci_proto_disconn_cfm(conn, ev->reason); @@ -2659,12 +2659,15 @@ static inline void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff } if (ev->status) { + mgmt_connect_failed(hdev->id, &ev->bdaddr, ev->status); hci_proto_connect_cfm(conn, ev->status); conn->state = BT_CLOSED; hci_conn_del(conn); goto unlock; } + mgmt_connected(hdev->id, &ev->bdaddr); + conn->handle = __le16_to_cpu(ev->handle); conn->state = BT_CONNECTED; diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index a378acc..4f3bc74 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -62,9 +62,8 @@ static u8 l2cap_fixed_chan[8] = { 0x02, }; static struct workqueue_struct *_busy_wq; -struct bt_sock_list l2cap_sk_list = { - .lock = __RW_LOCK_UNLOCKED(l2cap_sk_list.lock) -}; +LIST_HEAD(chan_list); +DEFINE_RWLOCK(chan_list_lock); static void l2cap_busy_work(struct work_struct *work); @@ -135,6 +134,64 @@ static inline struct l2cap_chan *l2cap_get_chan_by_ident(struct l2cap_conn *conn return c; } +static struct l2cap_chan *__l2cap_global_chan_by_addr(__le16 psm, bdaddr_t *src) +{ + struct l2cap_chan *c; + + list_for_each_entry(c, &chan_list, global_l) { + if (c->sport == psm && !bacmp(&bt_sk(c->sk)->src, src)) + goto found; + } + + c = NULL; +found: + return c; +} + +int l2cap_add_psm(struct l2cap_chan *chan, bdaddr_t *src, __le16 psm) +{ + int err; + + write_lock_bh(&chan_list_lock); + + if (psm && __l2cap_global_chan_by_addr(psm, src)) { + err = -EADDRINUSE; + goto done; + } + + if (psm) { + chan->psm = psm; + chan->sport = psm; + err = 0; + } else { + u16 p; + + err = -EINVAL; + for (p = 0x1001; p < 0x1100; p += 2) + if (!__l2cap_global_chan_by_addr(cpu_to_le16(p), src)) { + chan->psm = cpu_to_le16(p); + chan->sport = cpu_to_le16(p); + err = 0; + break; + } + } + +done: + write_unlock_bh(&chan_list_lock); + return err; +} + +int l2cap_add_scid(struct l2cap_chan *chan, __u16 scid) +{ + write_lock_bh(&chan_list_lock); + + chan->scid = scid; + + write_unlock_bh(&chan_list_lock); + + return 0; +} + static u16 l2cap_alloc_cid(struct l2cap_conn *conn) { u16 cid = L2CAP_CID_DYN_START; @@ -147,7 +204,7 @@ static u16 l2cap_alloc_cid(struct l2cap_conn *conn) return 0; } -struct l2cap_chan *l2cap_chan_alloc(struct sock *sk) +struct l2cap_chan *l2cap_chan_create(struct sock *sk) { struct l2cap_chan *chan; @@ -157,11 +214,19 @@ struct l2cap_chan *l2cap_chan_alloc(struct sock *sk) chan->sk = sk; + write_lock_bh(&chan_list_lock); + list_add(&chan->global_l, &chan_list); + write_unlock_bh(&chan_list_lock); + return chan; } -void l2cap_chan_free(struct l2cap_chan *chan) +void l2cap_chan_destroy(struct l2cap_chan *chan) { + write_lock_bh(&chan_list_lock); + list_del(&chan->global_l); + write_unlock_bh(&chan_list_lock); + kfree(chan); } @@ -591,48 +656,51 @@ static void l2cap_conn_start(struct l2cap_conn *conn) /* Find socket with cid and source bdaddr. * Returns closest match, locked. */ -static struct sock *l2cap_get_sock_by_scid(int state, __le16 cid, bdaddr_t *src) +static struct l2cap_chan *l2cap_global_chan_by_scid(int state, __le16 cid, bdaddr_t *src) { - struct sock *sk = NULL, *sk1 = NULL; - struct hlist_node *node; + struct l2cap_chan *c, *c1 = NULL; - read_lock(&l2cap_sk_list.lock); + read_lock(&chan_list_lock); - sk_for_each(sk, node, &l2cap_sk_list.head) { - struct l2cap_chan *chan = l2cap_pi(sk)->chan; + list_for_each_entry(c, &chan_list, global_l) { + struct sock *sk = c->sk; if (state && sk->sk_state != state) continue; - if (chan->scid == cid) { + if (c->scid == cid) { /* Exact match. */ - if (!bacmp(&bt_sk(sk)->src, src)) - break; + if (!bacmp(&bt_sk(sk)->src, src)) { + read_unlock(&chan_list_lock); + return c; + } /* Closest match */ if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY)) - sk1 = sk; + c1 = c; } } - read_unlock(&l2cap_sk_list.lock); + read_unlock(&chan_list_lock); - return node ? sk : sk1; + return c1; } static void l2cap_le_conn_ready(struct l2cap_conn *conn) { struct sock *parent, *sk; - struct l2cap_chan *chan; + struct l2cap_chan *chan, *pchan; BT_DBG(""); /* Check if we have socket listening on cid */ - parent = l2cap_get_sock_by_scid(BT_LISTEN, L2CAP_CID_LE_DATA, + pchan = l2cap_global_chan_by_scid(BT_LISTEN, L2CAP_CID_LE_DATA, conn->src); - if (!parent) + if (!pchan) return; + parent = pchan->sk; + bh_lock_sock(parent); /* Check for backlog size */ @@ -645,7 +713,7 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn) if (!sk) goto clean; - chan = l2cap_chan_alloc(sk); + chan = l2cap_chan_create(sk); if (!chan) { l2cap_sock_kill(sk); goto clean; @@ -823,33 +891,34 @@ static inline void l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *ch /* Find socket with psm and source bdaddr. * Returns closest match. */ -static struct sock *l2cap_get_sock_by_psm(int state, __le16 psm, bdaddr_t *src) +static struct l2cap_chan *l2cap_global_chan_by_psm(int state, __le16 psm, bdaddr_t *src) { - struct sock *sk = NULL, *sk1 = NULL; - struct hlist_node *node; + struct l2cap_chan *c, *c1 = NULL; - read_lock(&l2cap_sk_list.lock); + read_lock(&chan_list_lock); - sk_for_each(sk, node, &l2cap_sk_list.head) { - struct l2cap_chan *chan = l2cap_pi(sk)->chan; + list_for_each_entry(c, &chan_list, global_l) { + struct sock *sk = c->sk; if (state && sk->sk_state != state) continue; - if (chan->psm == psm) { + if (c->psm == psm) { /* Exact match. */ - if (!bacmp(&bt_sk(sk)->src, src)) - break; + if (!bacmp(&bt_sk(sk)->src, src)) { + read_unlock_bh(&chan_list_lock); + return c; + } /* Closest match */ if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY)) - sk1 = sk; + c1 = c; } } - read_unlock(&l2cap_sk_list.lock); + read_unlock(&chan_list_lock); - return node ? sk : sk1; + return c1; } int l2cap_chan_connect(struct l2cap_chan *chan) @@ -2019,7 +2088,7 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd { struct l2cap_conn_req *req = (struct l2cap_conn_req *) data; struct l2cap_conn_rsp rsp; - struct l2cap_chan *chan = NULL; + struct l2cap_chan *chan = NULL, *pchan; struct sock *parent, *sk = NULL; int result, status = L2CAP_CS_NO_INFO; @@ -2029,12 +2098,14 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd BT_DBG("psm 0x%2.2x scid 0x%4.4x", psm, scid); /* Check if we have socket listening on psm */ - parent = l2cap_get_sock_by_psm(BT_LISTEN, psm, conn->src); - if (!parent) { + pchan = l2cap_global_chan_by_psm(BT_LISTEN, psm, conn->src); + if (!pchan) { result = L2CAP_CR_BAD_PSM; goto sendresp; } + parent = pchan->sk; + bh_lock_sock(parent); /* Check if the ACL is secure enough (if not SDP) */ @@ -2057,7 +2128,7 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd if (!sk) goto response; - chan = l2cap_chan_alloc(sk); + chan = l2cap_chan_create(sk); if (!chan) { l2cap_sock_kill(sk); goto response; @@ -3685,11 +3756,14 @@ done: static inline int l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm, struct sk_buff *skb) { struct sock *sk; + struct l2cap_chan *chan; - sk = l2cap_get_sock_by_psm(0, psm, conn->src); - if (!sk) + chan = l2cap_global_chan_by_psm(0, psm, conn->src); + if (!chan) goto drop; + sk = chan->sk; + bh_lock_sock(sk); BT_DBG("sk %p, len %d", sk, skb->len); @@ -3715,11 +3789,14 @@ done: static inline int l2cap_att_channel(struct l2cap_conn *conn, __le16 cid, struct sk_buff *skb) { struct sock *sk; + struct l2cap_chan *chan; - sk = l2cap_get_sock_by_scid(0, cid, conn->src); - if (!sk) + chan = l2cap_global_chan_by_scid(0, cid, conn->src); + if (!chan) goto drop; + sk = chan->sk; + bh_lock_sock(sk); BT_DBG("sk %p, len %d", sk, skb->len); @@ -3786,8 +3863,7 @@ static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb) static int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type) { int exact = 0, lm1 = 0, lm2 = 0; - register struct sock *sk; - struct hlist_node *node; + struct l2cap_chan *c; if (type != ACL_LINK) return -EINVAL; @@ -3795,25 +3871,25 @@ static int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type) BT_DBG("hdev %s, bdaddr %s", hdev->name, batostr(bdaddr)); /* Find listening sockets and check their link_mode */ - read_lock(&l2cap_sk_list.lock); - sk_for_each(sk, node, &l2cap_sk_list.head) { - struct l2cap_chan *chan = l2cap_pi(sk)->chan; + read_lock(&chan_list_lock); + list_for_each_entry(c, &chan_list, global_l) { + struct sock *sk = c->sk; if (sk->sk_state != BT_LISTEN) continue; if (!bacmp(&bt_sk(sk)->src, &hdev->bdaddr)) { lm1 |= HCI_LM_ACCEPT; - if (chan->role_switch) + if (c->role_switch) lm1 |= HCI_LM_MASTER; exact++; } else if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY)) { lm2 |= HCI_LM_ACCEPT; - if (chan->role_switch) + if (c->role_switch) lm2 |= HCI_LM_MASTER; } } - read_unlock(&l2cap_sk_list.lock); + read_unlock(&chan_list_lock); return exact ? lm1 : lm2; } @@ -4066,25 +4142,22 @@ drop: static int l2cap_debugfs_show(struct seq_file *f, void *p) { - struct sock *sk; - struct hlist_node *node; + struct l2cap_chan *c; - read_lock_bh(&l2cap_sk_list.lock); + read_lock_bh(&chan_list_lock); - sk_for_each(sk, node, &l2cap_sk_list.head) { - struct l2cap_pinfo *pi = l2cap_pi(sk); - struct l2cap_chan *chan = pi->chan; + list_for_each_entry(c, &chan_list, global_l) { + struct sock *sk = c->sk; seq_printf(f, "%s %s %d %d 0x%4.4x 0x%4.4x %d %d %d %d\n", batostr(&bt_sk(sk)->src), batostr(&bt_sk(sk)->dst), - sk->sk_state, __le16_to_cpu(chan->psm), - chan->scid, chan->dcid, - chan->imtu, chan->omtu, chan->sec_level, - chan->mode); + sk->sk_state, __le16_to_cpu(c->psm), + c->scid, c->dcid, c->imtu, c->omtu, + c->sec_level, c->mode); } - read_unlock_bh(&l2cap_sk_list.lock); + read_unlock_bh(&chan_list_lock); return 0; } diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index 7c4a9ae..18dc988 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -78,22 +78,6 @@ void l2cap_sock_clear_timer(struct sock *sk) sk_stop_timer(sk, &sk->sk_timer); } -static struct sock *__l2cap_get_sock_by_addr(__le16 psm, bdaddr_t *src) -{ - struct sock *sk; - struct hlist_node *node; - sk_for_each(sk, node, &l2cap_sk_list.head) { - struct l2cap_chan *chan = l2cap_pi(sk)->chan; - - if (chan->sport == psm && !bacmp(&bt_sk(sk)->src, src)) - goto found; - } - - sk = NULL; -found: - return sk; -} - static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen) { struct sock *sk = sock->sk; @@ -136,26 +120,20 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen) } } - write_lock_bh(&l2cap_sk_list.lock); + if (la.l2_cid) + err = l2cap_add_scid(chan, la.l2_cid); + else + err = l2cap_add_psm(chan, &la.l2_bdaddr, la.l2_psm); - if (la.l2_psm && __l2cap_get_sock_by_addr(la.l2_psm, &la.l2_bdaddr)) { - err = -EADDRINUSE; - } else { - /* Save source address */ - bacpy(&bt_sk(sk)->src, &la.l2_bdaddr); - chan->psm = la.l2_psm; - chan->sport = la.l2_psm; - sk->sk_state = BT_BOUND; - - if (__le16_to_cpu(la.l2_psm) == 0x0001 || - __le16_to_cpu(la.l2_psm) == 0x0003) - chan->sec_level = BT_SECURITY_SDP; - } + if (err < 0) + goto done; - if (la.l2_cid) - chan->scid = la.l2_cid; + if (__le16_to_cpu(la.l2_psm) == 0x0001 || + __le16_to_cpu(la.l2_psm) == 0x0003) + chan->sec_level = BT_SECURITY_SDP; - write_unlock_bh(&l2cap_sk_list.lock); + bacpy(&bt_sk(sk)->src, &la.l2_bdaddr); + sk->sk_state = BT_BOUND; done: release_sock(sk); @@ -278,28 +256,6 @@ static int l2cap_sock_listen(struct socket *sock, int backlog) goto done; } - if (!chan->psm && !chan->scid) { - bdaddr_t *src = &bt_sk(sk)->src; - u16 psm; - - err = -EINVAL; - - write_lock_bh(&l2cap_sk_list.lock); - - for (psm = 0x1001; psm < 0x1100; psm += 2) - if (!__l2cap_get_sock_by_addr(cpu_to_le16(psm), src)) { - chan->psm = cpu_to_le16(psm); - chan->sport = cpu_to_le16(psm); - err = 0; - break; - } - - write_unlock_bh(&l2cap_sk_list.lock); - - if (err < 0) - goto done; - } - sk->sk_max_ack_backlog = backlog; sk->sk_ack_backlog = 0; sk->sk_state = BT_LISTEN; @@ -852,8 +808,7 @@ void l2cap_sock_kill(struct sock *sk) /* Kill poor orphan */ - l2cap_chan_free(l2cap_pi(sk)->chan); - bt_sock_unlink(&l2cap_sk_list, sk); + l2cap_chan_destroy(l2cap_pi(sk)->chan); sock_set_flag(sk, SOCK_DEAD); sock_put(sk); } @@ -1069,7 +1024,6 @@ struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, int proto, g setup_timer(&sk->sk_timer, l2cap_sock_timeout, (unsigned long) sk); - bt_sock_link(&l2cap_sk_list, sk); return sk; } @@ -1096,7 +1050,7 @@ static int l2cap_sock_create(struct net *net, struct socket *sock, int protocol, if (!sk) return -ENOMEM; - chan = l2cap_chan_alloc(sk); + chan = l2cap_chan_create(sk); if (!chan) { l2cap_sock_kill(sk); return -ENOMEM; diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 2481d25..dae382c 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -1033,6 +1033,9 @@ static int disconnect(struct sock *sk, u16 index, unsigned char *data, u16 len) } conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr); + if (!conn) + conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->bdaddr); + if (!conn) { err = cmd_status(sk, index, MGMT_OP_DISCONNECT, ENOTCONN); goto failed; diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c index 121a5c1..5759bb7 100644 --- a/net/bluetooth/rfcomm/core.c +++ b/net/bluetooth/rfcomm/core.c @@ -2096,7 +2096,7 @@ static void rfcomm_security_cfm(struct hci_conn *conn, u8 status, u8 encrypt) if (!test_and_clear_bit(RFCOMM_AUTH_PENDING, &d->flags)) continue; - if (!status) + if (!status && hci_conn_check_secure(conn, d->sec_level)) set_bit(RFCOMM_AUTH_ACCEPT, &d->flags); else set_bit(RFCOMM_AUTH_REJECT, &d->flags); diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c index 0c9d0c0..9c0d76c 100644 --- a/net/mac80211/agg-rx.c +++ b/net/mac80211/agg-rx.c @@ -63,7 +63,8 @@ void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, lockdep_assert_held(&sta->ampdu_mlme.mtx); - tid_rx = sta->ampdu_mlme.tid_rx[tid]; + tid_rx = rcu_dereference_protected(sta->ampdu_mlme.tid_rx[tid], + lockdep_is_held(&sta->ampdu_mlme.mtx)); if (!tid_rx) return; diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index 63d852c..cd5125f 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -136,6 +136,14 @@ void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u1 ieee80211_tx_skb(sdata, skb); } +void ieee80211_assign_tid_tx(struct sta_info *sta, int tid, + struct tid_ampdu_tx *tid_tx) +{ + lockdep_assert_held(&sta->ampdu_mlme.mtx); + lockdep_assert_held(&sta->lock); + rcu_assign_pointer(sta->ampdu_mlme.tid_tx[tid], tid_tx); +} + static void kfree_tid_tx(struct rcu_head *rcu_head) { struct tid_ampdu_tx *tid_tx = @@ -149,19 +157,22 @@ int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, bool tx) { struct ieee80211_local *local = sta->local; - struct tid_ampdu_tx *tid_tx = sta->ampdu_mlme.tid_tx[tid]; + struct tid_ampdu_tx *tid_tx; int ret; lockdep_assert_held(&sta->ampdu_mlme.mtx); - if (!tid_tx) - return -ENOENT; - spin_lock_bh(&sta->lock); + tid_tx = rcu_dereference_protected_tid_tx(sta, tid); + if (!tid_tx) { + spin_unlock_bh(&sta->lock); + return -ENOENT; + } + if (test_bit(HT_AGG_STATE_WANT_START, &tid_tx->state)) { /* not even started yet! */ - rcu_assign_pointer(sta->ampdu_mlme.tid_tx[tid], NULL); + ieee80211_assign_tid_tx(sta, tid, NULL); spin_unlock_bh(&sta->lock); call_rcu(&tid_tx->rcu_head, kfree_tid_tx); return 0; @@ -283,13 +294,13 @@ ieee80211_wake_queue_agg(struct ieee80211_local *local, int tid) void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid) { - struct tid_ampdu_tx *tid_tx = sta->ampdu_mlme.tid_tx[tid]; + struct tid_ampdu_tx *tid_tx; struct ieee80211_local *local = sta->local; struct ieee80211_sub_if_data *sdata = sta->sdata; u16 start_seq_num; int ret; - lockdep_assert_held(&sta->ampdu_mlme.mtx); + tid_tx = rcu_dereference_protected_tid_tx(sta, tid); /* * While we're asking the driver about the aggregation, @@ -318,7 +329,7 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid) " tid %d\n", tid); #endif spin_lock_bh(&sta->lock); - rcu_assign_pointer(sta->ampdu_mlme.tid_tx[tid], NULL); + ieee80211_assign_tid_tx(sta, tid, NULL); spin_unlock_bh(&sta->lock); ieee80211_wake_queue_agg(local, tid); @@ -396,9 +407,9 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, goto err_unlock_sta; } - tid_tx = sta->ampdu_mlme.tid_tx[tid]; + tid_tx = rcu_dereference_protected_tid_tx(sta, tid); /* check if the TID is not in aggregation flow already */ - if (tid_tx) { + if (tid_tx || sta->ampdu_mlme.tid_start_tx[tid]) { #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "BA request denied - session is not " "idle on tid %u\n", tid); @@ -433,8 +444,11 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, sta->ampdu_mlme.dialog_token_allocator++; tid_tx->dialog_token = sta->ampdu_mlme.dialog_token_allocator; - /* finally, assign it to the array */ - rcu_assign_pointer(sta->ampdu_mlme.tid_tx[tid], tid_tx); + /* + * Finally, assign it to the start array; the work item will + * collect it and move it to the normal array. + */ + sta->ampdu_mlme.tid_start_tx[tid] = tid_tx; ieee80211_queue_work(&local->hw, &sta->ampdu_mlme.work); @@ -480,16 +494,19 @@ ieee80211_agg_splice_finish(struct ieee80211_local *local, u16 tid) static void ieee80211_agg_tx_operational(struct ieee80211_local *local, struct sta_info *sta, u16 tid) { + struct tid_ampdu_tx *tid_tx; + lockdep_assert_held(&sta->ampdu_mlme.mtx); + tid_tx = rcu_dereference_protected_tid_tx(sta, tid); + #ifdef CONFIG_MAC80211_HT_DEBUG printk(KERN_DEBUG "Aggregation is on for tid %d\n", tid); #endif drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_TX_OPERATIONAL, - &sta->sta, tid, NULL, - sta->ampdu_mlme.tid_tx[tid]->buf_size); + &sta->sta, tid, NULL, tid_tx->buf_size); /* * synchronize with TX path, while splicing the TX path @@ -497,13 +514,13 @@ static void ieee80211_agg_tx_operational(struct ieee80211_local *local, */ spin_lock_bh(&sta->lock); - ieee80211_agg_splice_packets(local, sta->ampdu_mlme.tid_tx[tid], tid); + ieee80211_agg_splice_packets(local, tid_tx, tid); /* * Now mark as operational. This will be visible * in the TX path, and lets it go lock-free in * the common case. */ - set_bit(HT_AGG_STATE_OPERATIONAL, &sta->ampdu_mlme.tid_tx[tid]->state); + set_bit(HT_AGG_STATE_OPERATIONAL, &tid_tx->state); ieee80211_agg_splice_finish(local, tid); spin_unlock_bh(&sta->lock); @@ -537,7 +554,7 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid) } mutex_lock(&sta->ampdu_mlme.mtx); - tid_tx = sta->ampdu_mlme.tid_tx[tid]; + tid_tx = rcu_dereference_protected_tid_tx(sta, tid); if (WARN_ON(!tid_tx)) { #ifdef CONFIG_MAC80211_HT_DEBUG @@ -615,7 +632,7 @@ int ieee80211_stop_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid) return -EINVAL; spin_lock_bh(&sta->lock); - tid_tx = sta->ampdu_mlme.tid_tx[tid]; + tid_tx = rcu_dereference_protected_tid_tx(sta, tid); if (!tid_tx) { ret = -ENOENT; @@ -671,7 +688,7 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid) mutex_lock(&sta->ampdu_mlme.mtx); spin_lock_bh(&sta->lock); - tid_tx = sta->ampdu_mlme.tid_tx[tid]; + tid_tx = rcu_dereference_protected_tid_tx(sta, tid); if (!tid_tx || !test_bit(HT_AGG_STATE_STOPPING, &tid_tx->state)) { #ifdef CONFIG_MAC80211_HT_DEBUG @@ -697,7 +714,7 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid) ieee80211_agg_splice_packets(local, tid_tx, tid); /* future packets must not find the tid_tx struct any more */ - rcu_assign_pointer(sta->ampdu_mlme.tid_tx[tid], NULL); + ieee80211_assign_tid_tx(sta, tid, NULL); ieee80211_agg_splice_finish(local, tid); @@ -752,7 +769,7 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local, mutex_lock(&sta->ampdu_mlme.mtx); - tid_tx = sta->ampdu_mlme.tid_tx[tid]; + tid_tx = rcu_dereference_protected_tid_tx(sta, tid); if (!tid_tx) goto out; diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 12d52ce..be70c70 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -136,7 +136,10 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, mutex_lock(&sdata->local->sta_mtx); if (mac_addr) { - sta = sta_info_get_bss(sdata, mac_addr); + if (ieee80211_vif_is_mesh(&sdata->vif)) + sta = sta_info_get(sdata, mac_addr); + else + sta = sta_info_get_bss(sdata, mac_addr); if (!sta) { ieee80211_key_free(sdata->local, key); err = -ENOENT; @@ -157,13 +160,14 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, u8 key_idx, bool pairwise, const u8 *mac_addr) { - struct ieee80211_sub_if_data *sdata; + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + struct ieee80211_local *local = sdata->local; struct sta_info *sta; + struct ieee80211_key *key = NULL; int ret; - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - mutex_lock(&sdata->local->sta_mtx); + mutex_lock(&local->sta_mtx); + mutex_lock(&local->key_mtx); if (mac_addr) { ret = -ENOENT; @@ -172,33 +176,24 @@ static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, if (!sta) goto out_unlock; - if (pairwise) { - if (sta->ptk) { - ieee80211_key_free(sdata->local, sta->ptk); - ret = 0; - } - } else { - if (sta->gtk[key_idx]) { - ieee80211_key_free(sdata->local, - sta->gtk[key_idx]); - ret = 0; - } - } - - goto out_unlock; - } + if (pairwise) + key = key_mtx_dereference(local, sta->ptk); + else + key = key_mtx_dereference(local, sta->gtk[key_idx]); + } else + key = key_mtx_dereference(local, sdata->keys[key_idx]); - if (!sdata->keys[key_idx]) { + if (!key) { ret = -ENOENT; goto out_unlock; } - ieee80211_key_free(sdata->local, sdata->keys[key_idx]); - WARN_ON(sdata->keys[key_idx]); + __ieee80211_key_free(key); ret = 0; out_unlock: - mutex_unlock(&sdata->local->sta_mtx); + mutex_unlock(&local->key_mtx); + mutex_unlock(&local->sta_mtx); return ret; } @@ -228,11 +223,11 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, goto out; if (pairwise) - key = sta->ptk; + key = rcu_dereference(sta->ptk); else if (key_idx < NUM_DEFAULT_KEYS) - key = sta->gtk[key_idx]; + key = rcu_dereference(sta->gtk[key_idx]); } else - key = sdata->keys[key_idx]; + key = rcu_dereference(sdata->keys[key_idx]); if (!key) goto out; @@ -468,7 +463,7 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata, int size; int err = -EINVAL; - old = sdata->u.ap.beacon; + old = rtnl_dereference(sdata->u.ap.beacon); /* head must not be zero-length */ if (params->head && !params->head_len) @@ -563,8 +558,7 @@ static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev, sdata = IEEE80211_DEV_TO_SUB_IF(dev); - old = sdata->u.ap.beacon; - + old = rtnl_dereference(sdata->u.ap.beacon); if (old) return -EALREADY; @@ -579,8 +573,7 @@ static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev, sdata = IEEE80211_DEV_TO_SUB_IF(dev); - old = sdata->u.ap.beacon; - + old = rtnl_dereference(sdata->u.ap.beacon); if (!old) return -ENOENT; @@ -594,8 +587,7 @@ static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev) sdata = IEEE80211_DEV_TO_SUB_IF(dev); - old = sdata->u.ap.beacon; - + old = rtnl_dereference(sdata->u.ap.beacon); if (!old) return -ENOENT; @@ -734,15 +726,29 @@ static void sta_apply_parameters(struct ieee80211_local *local, params->ht_capa, &sta->sta.ht_cap); - if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) { - switch (params->plink_action) { - case PLINK_ACTION_OPEN: - mesh_plink_open(sta); - break; - case PLINK_ACTION_BLOCK: - mesh_plink_block(sta); - break; - } + if (ieee80211_vif_is_mesh(&sdata->vif)) { +#ifdef CONFIG_MAC80211_MESH + if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED) + switch (params->plink_state) { + case NL80211_PLINK_LISTEN: + case NL80211_PLINK_ESTAB: + case NL80211_PLINK_BLOCKED: + sta->plink_state = params->plink_state; + break; + default: + /* nothing */ + break; + } + else + switch (params->plink_action) { + case PLINK_ACTION_OPEN: + mesh_plink_open(sta); + break; + case PLINK_ACTION_BLOCK: + mesh_plink_block(sta); + break; + } +#endif } } @@ -943,8 +949,10 @@ static int ieee80211_change_mpath(struct wiphy *wiphy, static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, struct mpath_info *pinfo) { - if (mpath->next_hop) - memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN); + struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); + + if (next_hop_sta) + memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); else memset(next_hop, 0, ETH_ALEN); @@ -1064,7 +1072,11 @@ static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); ifmsh->mesh_pp_id = setup->path_sel_proto; ifmsh->mesh_pm_id = setup->path_metric; - ifmsh->is_secure = setup->is_secure; + ifmsh->security = IEEE80211_MESH_SEC_NONE; + if (setup->is_authenticated) + ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; + if (setup->is_secure) + ifmsh->security |= IEEE80211_MESH_SEC_SECURED; return 0; } @@ -1297,9 +1309,10 @@ static int ieee80211_set_channel(struct wiphy *wiphy, } #ifdef CONFIG_PM -static int ieee80211_suspend(struct wiphy *wiphy) +static int ieee80211_suspend(struct wiphy *wiphy, + struct cfg80211_wowlan *wowlan) { - return __ieee80211_suspend(wiphy_priv(wiphy)); + return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); } static int ieee80211_resume(struct wiphy *wiphy) @@ -1342,6 +1355,30 @@ static int ieee80211_scan(struct wiphy *wiphy, return ieee80211_request_scan(sdata, req); } +static int +ieee80211_sched_scan_start(struct wiphy *wiphy, + struct net_device *dev, + struct cfg80211_sched_scan_request *req) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + + if (!sdata->local->ops->sched_scan_start) + return -EOPNOTSUPP; + + return ieee80211_request_sched_scan_start(sdata, req); +} + +static int +ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev) +{ + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + + if (!sdata->local->ops->sched_scan_stop) + return -EOPNOTSUPP; + + return ieee80211_request_sched_scan_stop(sdata); +} + static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_auth_request *req) { @@ -2083,6 +2120,8 @@ struct cfg80211_ops mac80211_config_ops = { .suspend = ieee80211_suspend, .resume = ieee80211_resume, .scan = ieee80211_scan, + .sched_scan_start = ieee80211_sched_scan_start, + .sched_scan_stop = ieee80211_sched_scan_stop, .auth = ieee80211_auth, .assoc = ieee80211_assoc, .deauth = ieee80211_deauth, diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c index 0a602db..186e02f 100644 --- a/net/mac80211/debugfs.c +++ b/net/mac80211/debugfs.c @@ -135,7 +135,7 @@ static ssize_t reset_write(struct file *file, const char __user *user_buf, struct ieee80211_local *local = file->private_data; rtnl_lock(); - __ieee80211_suspend(&local->hw); + __ieee80211_suspend(&local->hw, NULL); __ieee80211_resume(&local->hw); rtnl_unlock(); diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c index f7ef347..33c58b8 100644 --- a/net/mac80211/debugfs_key.c +++ b/net/mac80211/debugfs_key.c @@ -241,16 +241,12 @@ void ieee80211_debugfs_key_add(struct ieee80211_key *key) if (!key->debugfs.dir) return; - rcu_read_lock(); - sta = rcu_dereference(key->sta); - if (sta) + sta = key->sta; + if (sta) { sprintf(buf, "../../stations/%pM", sta->sta.addr); - rcu_read_unlock(); - - /* using sta as a boolean is fine outside RCU lock */ - if (sta) key->debugfs.stalink = debugfs_create_symlink("station", key->debugfs.dir, buf); + } DEBUGFS_ADD(keylen); DEBUGFS_ADD(flags); @@ -286,7 +282,8 @@ void ieee80211_debugfs_key_update_default(struct ieee80211_sub_if_data *sdata) lockdep_assert_held(&sdata->local->key_mtx); if (sdata->default_unicast_key) { - key = sdata->default_unicast_key; + key = key_mtx_dereference(sdata->local, + sdata->default_unicast_key); sprintf(buf, "../keys/%d", key->debugfs.cnt); sdata->debugfs.default_unicast_key = debugfs_create_symlink("default_unicast_key", @@ -297,7 +294,8 @@ void ieee80211_debugfs_key_update_default(struct ieee80211_sub_if_data *sdata) } if (sdata->default_multicast_key) { - key = sdata->default_multicast_key; + key = key_mtx_dereference(sdata->local, + sdata->default_multicast_key); sprintf(buf, "../keys/%d", key->debugfs.cnt); sdata->debugfs.default_multicast_key = debugfs_create_symlink("default_multicast_key", @@ -316,9 +314,8 @@ void ieee80211_debugfs_key_add_mgmt_default(struct ieee80211_sub_if_data *sdata) if (!sdata->debugfs.dir) return; - /* this is running under the key lock */ - - key = sdata->default_mgmt_key; + key = key_mtx_dereference(sdata->local, + sdata->default_mgmt_key); if (key) { sprintf(buf, "../keys/%d", key->debugfs.cnt); sdata->debugfs.default_mgmt_key = diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index 2ddb56e..eebf7a6 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -41,6 +41,33 @@ static inline void drv_stop(struct ieee80211_local *local) local->started = false; } +#ifdef CONFIG_PM +static inline int drv_suspend(struct ieee80211_local *local, + struct cfg80211_wowlan *wowlan) +{ + int ret; + + might_sleep(); + + trace_drv_suspend(local); + ret = local->ops->suspend(&local->hw, wowlan); + trace_drv_return_int(local, ret); + return ret; +} + +static inline int drv_resume(struct ieee80211_local *local) +{ + int ret; + + might_sleep(); + + trace_drv_resume(local); + ret = local->ops->resume(&local->hw); + trace_drv_return_int(local, ret); + return ret; +} +#endif + static inline int drv_add_interface(struct ieee80211_local *local, struct ieee80211_vif *vif) { @@ -185,12 +212,39 @@ static inline int drv_hw_scan(struct ieee80211_local *local, might_sleep(); - trace_drv_hw_scan(local, sdata, req); + trace_drv_hw_scan(local, sdata); ret = local->ops->hw_scan(&local->hw, &sdata->vif, req); trace_drv_return_int(local, ret); return ret; } +static inline int +drv_sched_scan_start(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct cfg80211_sched_scan_request *req, + struct ieee80211_sched_scan_ies *ies) +{ + int ret; + + might_sleep(); + + trace_drv_sched_scan_start(local, sdata); + ret = local->ops->sched_scan_start(&local->hw, &sdata->vif, + req, ies); + trace_drv_return_int(local, ret); + return ret; +} + +static inline void drv_sched_scan_stop(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata) +{ + might_sleep(); + + trace_drv_sched_scan_stop(local, sdata); + local->ops->sched_scan_stop(&local->hw, &sdata->vif); + trace_drv_return_void(local); +} + static inline void drv_sw_scan_start(struct ieee80211_local *local) { might_sleep(); diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h index 191e834..ed9edcb 100644 --- a/net/mac80211/driver-trace.h +++ b/net/mac80211/driver-trace.h @@ -55,6 +55,70 @@ DECLARE_EVENT_CLASS(local_only_evt, TP_printk(LOCAL_PR_FMT, LOCAL_PR_ARG) ); +DECLARE_EVENT_CLASS(local_sdata_addr_evt, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata), + TP_ARGS(local, sdata), + + TP_STRUCT__entry( + LOCAL_ENTRY + VIF_ENTRY + __array(char, addr, 6) + ), + + TP_fast_assign( + LOCAL_ASSIGN; + VIF_ASSIGN; + memcpy(__entry->addr, sdata->vif.addr, 6); + ), + + TP_printk( + LOCAL_PR_FMT VIF_PR_FMT " addr:%pM", + LOCAL_PR_ARG, VIF_PR_ARG, __entry->addr + ) +); + +DECLARE_EVENT_CLASS(local_u32_evt, + TP_PROTO(struct ieee80211_local *local, u32 value), + TP_ARGS(local, value), + + TP_STRUCT__entry( + LOCAL_ENTRY + __field(u32, value) + ), + + TP_fast_assign( + LOCAL_ASSIGN; + __entry->value = value; + ), + + TP_printk( + LOCAL_PR_FMT " value:%d", + LOCAL_PR_ARG, __entry->value + ) +); + +DECLARE_EVENT_CLASS(local_sdata_evt, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata), + TP_ARGS(local, sdata), + + TP_STRUCT__entry( + LOCAL_ENTRY + VIF_ENTRY + ), + + TP_fast_assign( + LOCAL_ASSIGN; + VIF_ASSIGN; + ), + + TP_printk( + LOCAL_PR_FMT VIF_PR_FMT, + LOCAL_PR_ARG, VIF_PR_ARG + ) +); + DEFINE_EVENT(local_only_evt, drv_return_void, TP_PROTO(struct ieee80211_local *local), TP_ARGS(local) @@ -108,33 +172,25 @@ DEFINE_EVENT(local_only_evt, drv_start, TP_ARGS(local) ); +DEFINE_EVENT(local_only_evt, drv_suspend, + TP_PROTO(struct ieee80211_local *local), + TP_ARGS(local) +); + +DEFINE_EVENT(local_only_evt, drv_resume, + TP_PROTO(struct ieee80211_local *local), + TP_ARGS(local) +); + DEFINE_EVENT(local_only_evt, drv_stop, TP_PROTO(struct ieee80211_local *local), TP_ARGS(local) ); -TRACE_EVENT(drv_add_interface, +DEFINE_EVENT(local_sdata_addr_evt, drv_add_interface, TP_PROTO(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata), - - TP_ARGS(local, sdata), - - TP_STRUCT__entry( - LOCAL_ENTRY - VIF_ENTRY - __array(char, addr, 6) - ), - - TP_fast_assign( - LOCAL_ASSIGN; - VIF_ASSIGN; - memcpy(__entry->addr, sdata->vif.addr, 6); - ), - - TP_printk( - LOCAL_PR_FMT VIF_PR_FMT " addr:%pM", - LOCAL_PR_ARG, VIF_PR_ARG, __entry->addr - ) + TP_ARGS(local, sdata) ); TRACE_EVENT(drv_change_interface, @@ -165,27 +221,10 @@ TRACE_EVENT(drv_change_interface, ) ); -TRACE_EVENT(drv_remove_interface, - TP_PROTO(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata), - - TP_ARGS(local, sdata), - - TP_STRUCT__entry( - LOCAL_ENTRY - VIF_ENTRY - __array(char, addr, 6) - ), - - TP_fast_assign( - LOCAL_ASSIGN; - VIF_ASSIGN; - memcpy(__entry->addr, sdata->vif.addr, 6); - ), - - TP_printk( - LOCAL_PR_FMT VIF_PR_FMT " addr:%pM", - LOCAL_PR_ARG, VIF_PR_ARG, __entry->addr - ) +DEFINE_EVENT(local_sdata_addr_evt, drv_remove_interface, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata), + TP_ARGS(local, sdata) ); TRACE_EVENT(drv_config, @@ -415,27 +454,22 @@ TRACE_EVENT(drv_update_tkip_key, ) ); -TRACE_EVENT(drv_hw_scan, +DEFINE_EVENT(local_sdata_evt, drv_hw_scan, TP_PROTO(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata, - struct cfg80211_scan_request *req), - - TP_ARGS(local, sdata, req), - - TP_STRUCT__entry( - LOCAL_ENTRY - VIF_ENTRY - ), + struct ieee80211_sub_if_data *sdata), + TP_ARGS(local, sdata) +); - TP_fast_assign( - LOCAL_ASSIGN; - VIF_ASSIGN; - ), +DEFINE_EVENT(local_sdata_evt, drv_sched_scan_start, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata), + TP_ARGS(local, sdata) +); - TP_printk( - LOCAL_PR_FMT VIF_PR_FMT, - LOCAL_PR_ARG,VIF_PR_ARG - ) +DEFINE_EVENT(local_sdata_evt, drv_sched_scan_stop, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata), + TP_ARGS(local, sdata) ); DEFINE_EVENT(local_only_evt, drv_sw_scan_start, @@ -504,46 +538,14 @@ TRACE_EVENT(drv_get_tkip_seq, ) ); -TRACE_EVENT(drv_set_frag_threshold, +DEFINE_EVENT(local_u32_evt, drv_set_frag_threshold, TP_PROTO(struct ieee80211_local *local, u32 value), - - TP_ARGS(local, value), - - TP_STRUCT__entry( - LOCAL_ENTRY - __field(u32, value) - ), - - TP_fast_assign( - LOCAL_ASSIGN; - __entry->value = value; - ), - - TP_printk( - LOCAL_PR_FMT " value:%d", - LOCAL_PR_ARG, __entry->value - ) + TP_ARGS(local, value) ); -TRACE_EVENT(drv_set_rts_threshold, +DEFINE_EVENT(local_u32_evt, drv_set_rts_threshold, TP_PROTO(struct ieee80211_local *local, u32 value), - - TP_ARGS(local, value), - - TP_STRUCT__entry( - LOCAL_ENTRY - __field(u32, value) - ), - - TP_fast_assign( - LOCAL_ASSIGN; - __entry->value = value; - ), - - TP_printk( - LOCAL_PR_FMT " value:%d", - LOCAL_PR_ARG, __entry->value - ) + TP_ARGS(local, value) ); TRACE_EVENT(drv_set_coverage_class, @@ -1194,6 +1196,42 @@ TRACE_EVENT(api_scan_completed, ) ); +TRACE_EVENT(api_sched_scan_results, + TP_PROTO(struct ieee80211_local *local), + + TP_ARGS(local), + + TP_STRUCT__entry( + LOCAL_ENTRY + ), + + TP_fast_assign( + LOCAL_ASSIGN; + ), + + TP_printk( + LOCAL_PR_FMT, LOCAL_PR_ARG + ) +); + +TRACE_EVENT(api_sched_scan_stopped, + TP_PROTO(struct ieee80211_local *local), + + TP_ARGS(local), + + TP_STRUCT__entry( + LOCAL_ENTRY + ), + + TP_fast_assign( + LOCAL_ASSIGN; + ), + + TP_printk( + LOCAL_PR_FMT, LOCAL_PR_ARG + ) +); + TRACE_EVENT(api_sta_block_awake, TP_PROTO(struct ieee80211_local *local, struct ieee80211_sta *sta, bool block), diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index b9e4b9b..591add2 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -140,14 +140,29 @@ void ieee80211_ba_session_work(struct work_struct *work) sta, tid, WLAN_BACK_RECIPIENT, WLAN_REASON_QSTA_TIMEOUT, true); - tid_tx = sta->ampdu_mlme.tid_tx[tid]; - if (!tid_tx) - continue; + tid_tx = sta->ampdu_mlme.tid_start_tx[tid]; + if (tid_tx) { + /* + * Assign it over to the normal tid_tx array + * where it "goes live". + */ + spin_lock_bh(&sta->lock); + + sta->ampdu_mlme.tid_start_tx[tid] = NULL; + /* could there be a race? */ + if (sta->ampdu_mlme.tid_tx[tid]) + kfree(tid_tx); + else + ieee80211_assign_tid_tx(sta, tid, tid_tx); + spin_unlock_bh(&sta->lock); - if (test_bit(HT_AGG_STATE_WANT_START, &tid_tx->state)) ieee80211_tx_ba_session_handle_start(sta, tid); - else if (test_and_clear_bit(HT_AGG_STATE_WANT_STOP, - &tid_tx->state)) + continue; + } + + tid_tx = rcu_dereference_protected_tid_tx(sta, tid); + if (tid_tx && test_and_clear_bit(HT_AGG_STATE_WANT_STOP, + &tid_tx->state)) ___ieee80211_stop_tx_ba_session(sta, tid, WLAN_BACK_INITIATOR, true); diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index b81860c..421eaa6 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -662,12 +662,16 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata, int tx_last_beacon, len = req->len; struct sk_buff *skb; struct ieee80211_mgmt *resp; + struct sk_buff *presp; u8 *pos, *end; lockdep_assert_held(&ifibss->mtx); + presp = rcu_dereference_protected(ifibss->presp, + lockdep_is_held(&ifibss->mtx)); + if (ifibss->state != IEEE80211_IBSS_MLME_JOINED || - len < 24 + 2 || !ifibss->presp) + len < 24 + 2 || !presp) return; tx_last_beacon = drv_tx_last_beacon(local); @@ -705,7 +709,7 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata, } /* Reply with ProbeResp */ - skb = skb_copy(ifibss->presp, GFP_KERNEL); + skb = skb_copy(presp, GFP_KERNEL); if (!skb) return; @@ -985,7 +989,8 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata) /* remove beacon */ kfree(sdata->u.ibss.ie); - skb = sdata->u.ibss.presp; + skb = rcu_dereference_protected(sdata->u.ibss.presp, + lockdep_is_held(&sdata->u.ibss.mtx)); rcu_assign_pointer(sdata->u.ibss.presp, NULL); sdata->vif.bss_conf.ibss_joined = false; ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED | diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 027c046..2025af5 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -214,7 +214,7 @@ struct beacon_data { }; struct ieee80211_if_ap { - struct beacon_data *beacon; + struct beacon_data __rcu *beacon; struct list_head vlans; @@ -237,7 +237,7 @@ struct ieee80211_if_vlan { struct list_head list; /* used for all tx if the VLAN is configured to 4-addr mode */ - struct sta_info *sta; + struct sta_info __rcu *sta; }; struct mesh_stats { @@ -442,7 +442,8 @@ struct ieee80211_if_ibss { unsigned long ibss_join_req; /* probe response/beacon for IBSS */ - struct sk_buff *presp, *skb; + struct sk_buff __rcu *presp; + struct sk_buff *skb; enum { IEEE80211_IBSS_MLME_SEARCH, @@ -490,7 +491,11 @@ struct ieee80211_if_mesh { bool accepting_plinks; const u8 *ie; u8 ie_len; - bool is_secure; + enum { + IEEE80211_MESH_SEC_NONE = 0x0, + IEEE80211_MESH_SEC_AUTHED = 0x1, + IEEE80211_MESH_SEC_SECURED = 0x2, + } security; }; #ifdef CONFIG_MAC80211_MESH @@ -563,9 +568,10 @@ struct ieee80211_sub_if_data { struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX]; unsigned int fragment_next; - struct ieee80211_key *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS]; - struct ieee80211_key *default_unicast_key, *default_multicast_key; - struct ieee80211_key *default_mgmt_key; + struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS]; + struct ieee80211_key __rcu *default_unicast_key; + struct ieee80211_key __rcu *default_multicast_key; + struct ieee80211_key __rcu *default_mgmt_key; u16 sequence_number; __be16 control_port_protocol; @@ -764,6 +770,9 @@ struct ieee80211_local { /* device is started */ bool started; + /* wowlan is enabled -- don't reconfig on resume */ + bool wowlan; + int tx_headroom; /* required headroom for hardware/radiotap */ /* count for keys needing tailroom space allocation */ @@ -798,7 +807,7 @@ struct ieee80211_local { spinlock_t sta_lock; unsigned long num_sta; struct list_head sta_list, sta_pending_list; - struct sta_info *sta_hash[STA_HASH_SIZE]; + struct sta_info __rcu *sta_hash[STA_HASH_SIZE]; struct timer_list sta_cleanup; struct work_struct sta_finish_work; int sta_generation; @@ -840,6 +849,10 @@ struct ieee80211_local { int scan_channel_idx; int scan_ies_len; + bool sched_scanning; + struct ieee80211_sched_scan_ies sched_scan_ies; + struct work_struct sched_scan_stopped_work; + unsigned long leave_oper_channel_time; enum mac80211_scan_state next_scan_state; struct delayed_work scan_work; @@ -1147,6 +1160,12 @@ ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq, void ieee80211_rx_bss_put(struct ieee80211_local *local, struct ieee80211_bss *bss); +/* scheduled scan handling */ +int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, + struct cfg80211_sched_scan_request *req); +int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata); +void ieee80211_sched_scan_stopped_work(struct work_struct *work); + /* off-channel helpers */ bool ieee80211_cfg_on_oper_channel(struct ieee80211_local *local); void ieee80211_offchannel_enable_all_ps(struct ieee80211_local *local, @@ -1250,7 +1269,8 @@ int ieee80211_reconfig(struct ieee80211_local *local); void ieee80211_stop_device(struct ieee80211_local *local); #ifdef CONFIG_PM -int __ieee80211_suspend(struct ieee80211_hw *hw); +int __ieee80211_suspend(struct ieee80211_hw *hw, + struct cfg80211_wowlan *wowlan); static inline int __ieee80211_resume(struct ieee80211_hw *hw) { @@ -1263,7 +1283,8 @@ static inline int __ieee80211_resume(struct ieee80211_hw *hw) return ieee80211_reconfig(hw_to_local(hw)); } #else -static inline int __ieee80211_suspend(struct ieee80211_hw *hw) +static inline int __ieee80211_suspend(struct ieee80211_hw *hw, + struct cfg80211_wowlan *wowlan) { return 0; } diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 80c29d6..7dfbe71 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -449,7 +449,8 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, /* APs need special treatment */ if (sdata->vif.type == NL80211_IFTYPE_AP) { struct ieee80211_sub_if_data *vlan, *tmpsdata; - struct beacon_data *old_beacon = sdata->u.ap.beacon; + struct beacon_data *old_beacon = + rtnl_dereference(sdata->u.ap.beacon); /* sdata_running will return false, so this will disable */ ieee80211_bss_info_change_notify(sdata, diff --git a/net/mac80211/key.c b/net/mac80211/key.c index b510721..31afd712 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -195,7 +195,7 @@ static void __ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, assert_key_lock(sdata->local); if (idx >= 0 && idx < NUM_DEFAULT_KEYS) - key = sdata->keys[idx]; + key = key_mtx_dereference(sdata->local, sdata->keys[idx]); if (uni) rcu_assign_pointer(sdata->default_unicast_key, key); @@ -222,7 +222,7 @@ __ieee80211_set_default_mgmt_key(struct ieee80211_sub_if_data *sdata, int idx) if (idx >= NUM_DEFAULT_KEYS && idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) - key = sdata->keys[idx]; + key = key_mtx_dereference(sdata->local, sdata->keys[idx]); rcu_assign_pointer(sdata->default_mgmt_key, key); @@ -266,9 +266,15 @@ static void __ieee80211_key_replace(struct ieee80211_sub_if_data *sdata, else idx = new->conf.keyidx; - defunikey = old && sdata->default_unicast_key == old; - defmultikey = old && sdata->default_multicast_key == old; - defmgmtkey = old && sdata->default_mgmt_key == old; + defunikey = old && + old == key_mtx_dereference(sdata->local, + sdata->default_unicast_key); + defmultikey = old && + old == key_mtx_dereference(sdata->local, + sdata->default_multicast_key); + defmgmtkey = old && + old == key_mtx_dereference(sdata->local, + sdata->default_mgmt_key); if (defunikey && !new) __ieee80211_set_default_key(sdata, -1, true, false); @@ -451,11 +457,11 @@ int ieee80211_key_link(struct ieee80211_key *key, mutex_lock(&sdata->local->key_mtx); if (sta && pairwise) - old_key = sta->ptk; + old_key = key_mtx_dereference(sdata->local, sta->ptk); else if (sta) - old_key = sta->gtk[idx]; + old_key = key_mtx_dereference(sdata->local, sta->gtk[idx]); else - old_key = sdata->keys[idx]; + old_key = key_mtx_dereference(sdata->local, sdata->keys[idx]); __ieee80211_key_replace(sdata, sta, pairwise, old_key, key); __ieee80211_key_destroy(old_key); @@ -471,8 +477,11 @@ int ieee80211_key_link(struct ieee80211_key *key, return ret; } -static void __ieee80211_key_free(struct ieee80211_key *key) +void __ieee80211_key_free(struct ieee80211_key *key) { + if (!key) + return; + /* * Replace key with nothingness if it was ever used. */ @@ -486,9 +495,6 @@ static void __ieee80211_key_free(struct ieee80211_key *key) void ieee80211_key_free(struct ieee80211_local *local, struct ieee80211_key *key) { - if (!key) - return; - mutex_lock(&local->key_mtx); __ieee80211_key_free(key); mutex_unlock(&local->key_mtx); diff --git a/net/mac80211/key.h b/net/mac80211/key.h index 4ddbe27..d801d53 100644 --- a/net/mac80211/key.h +++ b/net/mac80211/key.h @@ -135,6 +135,7 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len, int __must_check ieee80211_key_link(struct ieee80211_key *key, struct ieee80211_sub_if_data *sdata, struct sta_info *sta); +void __ieee80211_key_free(struct ieee80211_key *key); void ieee80211_key_free(struct ieee80211_local *local, struct ieee80211_key *key); void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx, @@ -145,4 +146,7 @@ void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata); void ieee80211_enable_keys(struct ieee80211_sub_if_data *sdata); void ieee80211_disable_keys(struct ieee80211_sub_if_data *sdata); +#define key_mtx_dereference(local, ref) \ + rcu_dereference_protected(ref, lockdep_is_held(&((local)->key_mtx))) + #endif /* IEEE80211_KEY_H */ diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 6187766..0d7b08d 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -358,7 +358,8 @@ static void ieee80211_restart_work(struct work_struct *work) flush_workqueue(local->workqueue); mutex_lock(&local->mtx); - WARN(test_bit(SCAN_HW_SCANNING, &local->scanning), + WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) || + local->sched_scanning, "%s called with hardware scan in progress\n", __func__); mutex_unlock(&local->mtx); @@ -580,8 +581,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, wiphy->flags |= WIPHY_FLAG_NETNS_OK | WIPHY_FLAG_4ADDR_AP | - WIPHY_FLAG_4ADDR_STATION | - WIPHY_FLAG_SUPPORTS_SEPARATE_DEFAULT_KEYS; + WIPHY_FLAG_4ADDR_STATION; if (!ops->set_key) wiphy->flags |= WIPHY_FLAG_IBSS_RSN; @@ -652,6 +652,9 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, setup_timer(&local->dynamic_ps_timer, ieee80211_dynamic_ps_timer, (unsigned long) local); + INIT_WORK(&local->sched_scan_stopped_work, + ieee80211_sched_scan_stopped_work); + sta_info_init(local); for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { @@ -682,7 +685,7 @@ EXPORT_SYMBOL(ieee80211_alloc_hw); int ieee80211_register_hw(struct ieee80211_hw *hw) { struct ieee80211_local *local = hw_to_local(hw); - int result; + int result, i; enum ieee80211_band band; int channels, max_bitrates; bool supp_ht; @@ -697,6 +700,13 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) WLAN_CIPHER_SUITE_AES_CMAC }; + if ((hw->wiphy->wowlan.flags || hw->wiphy->wowlan.n_patterns) +#ifdef CONFIG_PM + && (!local->ops->suspend || !local->ops->resume) +#endif + ) + return -EINVAL; + if (hw->max_report_rates == 0) hw->max_report_rates = hw->max_rates; @@ -733,11 +743,19 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) return -ENOMEM; /* if low-level driver supports AP, we also support VLAN */ - if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) - local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); + if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { + hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); + hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_AP_VLAN); + } /* mac80211 always supports monitor */ - local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); + hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); + hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_MONITOR); + + /* mac80211 doesn't support more than 1 channel */ + for (i = 0; i < hw->wiphy->n_iface_combinations; i++) + if (hw->wiphy->iface_combinations[i].num_different_channels > 1) + return -EINVAL; #ifndef CONFIG_MAC80211_MESH /* mesh depends on Kconfig, but drivers should set it if they want */ @@ -827,6 +845,9 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) if (!local->ops->remain_on_channel) local->hw.wiphy->max_remain_on_channel_duration = 5000; + if (local->ops->sched_scan_start) + local->hw.wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; + result = wiphy_register(local->hw.wiphy); if (result < 0) goto fail_wiphy_register; @@ -850,8 +871,10 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) * and we need some headroom for passing the frame to monitor * interfaces, but never both at the same time. */ +#ifndef __CHECKER__ BUILD_BUG_ON(IEEE80211_TX_STATUS_HEADROOM != sizeof(struct ieee80211_tx_status_rtap_hdr)); +#endif local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, sizeof(struct ieee80211_tx_status_rtap_hdr)); diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index c1299e2..29e9980 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -287,49 +287,6 @@ void mesh_mgmt_ies_add(struct sk_buff *skb, struct ieee80211_sub_if_data *sdata) } } -u32 mesh_table_hash(u8 *addr, struct ieee80211_sub_if_data *sdata, struct mesh_table *tbl) -{ - /* Use last four bytes of hw addr and interface index as hash index */ - return jhash_2words(*(u32 *)(addr+2), sdata->dev->ifindex, tbl->hash_rnd) - & tbl->hash_mask; -} - -struct mesh_table *mesh_table_alloc(int size_order) -{ - int i; - struct mesh_table *newtbl; - - newtbl = kmalloc(sizeof(struct mesh_table), GFP_KERNEL); - if (!newtbl) - return NULL; - - newtbl->hash_buckets = kzalloc(sizeof(struct hlist_head) * - (1 << size_order), GFP_KERNEL); - - if (!newtbl->hash_buckets) { - kfree(newtbl); - return NULL; - } - - newtbl->hashwlock = kmalloc(sizeof(spinlock_t) * - (1 << size_order), GFP_KERNEL); - if (!newtbl->hashwlock) { - kfree(newtbl->hash_buckets); - kfree(newtbl); - return NULL; - } - - newtbl->size_order = size_order; - newtbl->hash_mask = (1 << size_order) - 1; - atomic_set(&newtbl->entries, 0); - get_random_bytes(&newtbl->hash_rnd, - sizeof(newtbl->hash_rnd)); - for (i = 0; i <= newtbl->hash_mask; i++) - spin_lock_init(&newtbl->hashwlock[i]); - - return newtbl; -} - static void ieee80211_mesh_path_timer(unsigned long data) { @@ -574,7 +531,7 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata, &elems); /* ignore beacons from secure mesh peers if our security is off */ - if (elems.rsn_len && !sdata->u.mesh.is_secure) + if (elems.rsn_len && sdata->u.mesh.security == IEEE80211_MESH_SEC_NONE) return; if (elems.ds_params && elems.ds_params_len == 1) @@ -600,7 +557,7 @@ static void ieee80211_mesh_rx_mgmt_action(struct ieee80211_sub_if_data *sdata, struct ieee80211_rx_status *rx_status) { switch (mgmt->u.action.category) { - case WLAN_CATEGORY_MESH_PLINK: + case WLAN_CATEGORY_MESH_ACTION: mesh_rx_plink_frame(sdata, mgmt, len, rx_status); break; case WLAN_CATEGORY_MESH_PATH_SEL: diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h index 10acf1c..e7c5fdd 100644 --- a/net/mac80211/mesh.h +++ b/net/mac80211/mesh.h @@ -92,7 +92,7 @@ struct mesh_path { u8 dst[ETH_ALEN]; u8 mpp[ETH_ALEN]; /* used for MPP or MAP */ struct ieee80211_sub_if_data *sdata; - struct sta_info *next_hop; + struct sta_info __rcu *next_hop; struct timer_list timer; struct sk_buff_head frame_queue; struct rcu_head rcu; @@ -240,12 +240,8 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, /* Private interfaces */ /* Mesh tables */ -struct mesh_table *mesh_table_alloc(int size_order); -void mesh_table_free(struct mesh_table *tbl, bool free_leafs); void mesh_mpath_table_grow(void); void mesh_mpp_table_grow(void); -u32 mesh_table_hash(u8 *addr, struct ieee80211_sub_if_data *sdata, - struct mesh_table *tbl); /* Mesh paths */ int mesh_path_error_tx(u8 ttl, u8 *target, __le32 target_sn, __le16 target_rcode, const u8 *ra, struct ieee80211_sub_if_data *sdata); diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index e57f2e7..2b18053 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -391,7 +391,6 @@ static u32 hwmp_route_info_get(struct ieee80211_sub_if_data *sdata, (mpath->flags & MESH_PATH_SN_VALID)) { if (SN_GT(mpath->sn, orig_sn) || (mpath->sn == orig_sn && - action == MPATH_PREQ && new_metric >= mpath->metric)) { process = false; fresh_info = false; @@ -561,6 +560,14 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata, } +static inline struct sta_info * +next_hop_deref_protected(struct mesh_path *mpath) +{ + return rcu_dereference_protected(mpath->next_hop, + lockdep_is_held(&mpath->state_lock)); +} + + static void hwmp_prep_frame_process(struct ieee80211_sub_if_data *sdata, struct ieee80211_mgmt *mgmt, u8 *prep_elem, u32 metric) @@ -600,7 +607,7 @@ static void hwmp_prep_frame_process(struct ieee80211_sub_if_data *sdata, spin_unlock_bh(&mpath->state_lock); goto fail; } - memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN); + memcpy(next_hop, next_hop_deref_protected(mpath)->sta.addr, ETH_ALEN); spin_unlock_bh(&mpath->state_lock); --ttl; flags = PREP_IE_FLAGS(prep_elem); @@ -652,7 +659,8 @@ static void hwmp_perr_frame_process(struct ieee80211_sub_if_data *sdata, if (mpath) { spin_lock_bh(&mpath->state_lock); if (mpath->flags & MESH_PATH_ACTIVE && - memcmp(ta, mpath->next_hop->sta.addr, ETH_ALEN) == 0 && + memcmp(ta, next_hop_deref_protected(mpath)->sta.addr, + ETH_ALEN) == 0 && (!(mpath->flags & MESH_PATH_SN_VALID) || SN_GT(target_sn, mpath->sn))) { mpath->flags &= ~MESH_PATH_ACTIVE; @@ -914,6 +922,7 @@ int mesh_nexthop_lookup(struct sk_buff *skb, { struct sk_buff *skb_to_free = NULL; struct mesh_path *mpath; + struct sta_info *next_hop; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; u8 *target_addr = hdr->addr3; int err = 0; @@ -941,7 +950,11 @@ int mesh_nexthop_lookup(struct sk_buff *skb, mesh_queue_preq(mpath, PREQ_Q_F_START | PREQ_Q_F_REFRESH); } - memcpy(hdr->addr1, mpath->next_hop->sta.addr, ETH_ALEN); + next_hop = rcu_dereference(mpath->next_hop); + if (next_hop) + memcpy(hdr->addr1, next_hop->sta.addr, ETH_ALEN); + else + err = -ENOENT; } else { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); if (!(mpath->flags & MESH_PATH_RESOLVING)) { @@ -967,20 +980,11 @@ endlookup: void mesh_path_timer(unsigned long data) { - struct ieee80211_sub_if_data *sdata; - struct mesh_path *mpath; - - rcu_read_lock(); - mpath = (struct mesh_path *) data; - mpath = rcu_dereference(mpath); - if (!mpath) - goto endmpathtimer; - sdata = mpath->sdata; + struct mesh_path *mpath = (void *) data; + struct ieee80211_sub_if_data *sdata = mpath->sdata; - if (sdata->local->quiescing) { - rcu_read_unlock(); + if (sdata->local->quiescing) return; - } spin_lock_bh(&mpath->state_lock); if (mpath->flags & MESH_PATH_RESOLVED || @@ -997,8 +1001,6 @@ void mesh_path_timer(unsigned long data) } spin_unlock_bh(&mpath->state_lock); -endmpathtimer: - rcu_read_unlock(); } void diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c index 35c715a..83ce48e 100644 --- a/net/mac80211/mesh_pathtbl.c +++ b/net/mac80211/mesh_pathtbl.c @@ -40,6 +40,50 @@ static struct mesh_table *mesh_paths; static struct mesh_table *mpp_paths; /* Store paths for MPP&MAP */ int mesh_paths_generation; + +/* This lock will have the grow table function as writer and add / delete nodes + * as readers. When reading the table (i.e. doing lookups) we are well protected + * by RCU + */ +static DEFINE_RWLOCK(pathtbl_resize_lock); + + +static struct mesh_table *mesh_table_alloc(int size_order) +{ + int i; + struct mesh_table *newtbl; + + newtbl = kmalloc(sizeof(struct mesh_table), GFP_KERNEL); + if (!newtbl) + return NULL; + + newtbl->hash_buckets = kzalloc(sizeof(struct hlist_head) * + (1 << size_order), GFP_KERNEL); + + if (!newtbl->hash_buckets) { + kfree(newtbl); + return NULL; + } + + newtbl->hashwlock = kmalloc(sizeof(spinlock_t) * + (1 << size_order), GFP_KERNEL); + if (!newtbl->hashwlock) { + kfree(newtbl->hash_buckets); + kfree(newtbl); + return NULL; + } + + newtbl->size_order = size_order; + newtbl->hash_mask = (1 << size_order) - 1; + atomic_set(&newtbl->entries, 0); + get_random_bytes(&newtbl->hash_rnd, + sizeof(newtbl->hash_rnd)); + for (i = 0; i <= newtbl->hash_mask; i++) + spin_lock_init(&newtbl->hashwlock[i]); + + return newtbl; +} + static void __mesh_table_free(struct mesh_table *tbl) { kfree(tbl->hash_buckets); @@ -47,7 +91,7 @@ static void __mesh_table_free(struct mesh_table *tbl) kfree(tbl); } -void mesh_table_free(struct mesh_table *tbl, bool free_leafs) +static void mesh_table_free(struct mesh_table *tbl, bool free_leafs) { struct hlist_head *mesh_hash; struct hlist_node *p, *q; @@ -55,18 +99,18 @@ void mesh_table_free(struct mesh_table *tbl, bool free_leafs) mesh_hash = tbl->hash_buckets; for (i = 0; i <= tbl->hash_mask; i++) { - spin_lock(&tbl->hashwlock[i]); + spin_lock_bh(&tbl->hashwlock[i]); hlist_for_each_safe(p, q, &mesh_hash[i]) { tbl->free_node(p, free_leafs); atomic_dec(&tbl->entries); } - spin_unlock(&tbl->hashwlock[i]); + spin_unlock_bh(&tbl->hashwlock[i]); } __mesh_table_free(tbl); } static int mesh_table_grow(struct mesh_table *oldtbl, - struct mesh_table *newtbl) + struct mesh_table *newtbl) { struct hlist_head *oldhash; struct hlist_node *p, *q; @@ -76,7 +120,6 @@ static int mesh_table_grow(struct mesh_table *oldtbl, < oldtbl->mean_chain_len * (oldtbl->hash_mask + 1)) return -EAGAIN; - newtbl->free_node = oldtbl->free_node; newtbl->mean_chain_len = oldtbl->mean_chain_len; newtbl->copy_node = oldtbl->copy_node; @@ -98,12 +141,14 @@ errcopy: return -ENOMEM; } +static u32 mesh_table_hash(u8 *addr, struct ieee80211_sub_if_data *sdata, + struct mesh_table *tbl) +{ + /* Use last four bytes of hw addr and interface index as hash index */ + return jhash_2words(*(u32 *)(addr+2), sdata->dev->ifindex, tbl->hash_rnd) + & tbl->hash_mask; +} -/* This lock will have the grow table function as writer and add / delete nodes - * as readers. When reading the table (i.e. doing lookups) we are well protected - * by RCU - */ -static DEFINE_RWLOCK(pathtbl_resize_lock); /** * @@ -275,7 +320,7 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata) if (!new_node) goto err_node_alloc; - read_lock(&pathtbl_resize_lock); + read_lock_bh(&pathtbl_resize_lock); memcpy(new_mpath->dst, dst, ETH_ALEN); new_mpath->sdata = sdata; new_mpath->flags = 0; @@ -290,7 +335,7 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata) hash_idx = mesh_table_hash(dst, sdata, mesh_paths); bucket = &mesh_paths->hash_buckets[hash_idx]; - spin_lock(&mesh_paths->hashwlock[hash_idx]); + spin_lock_bh(&mesh_paths->hashwlock[hash_idx]); err = -EEXIST; hlist_for_each_entry(node, n, bucket, list) { @@ -306,8 +351,8 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata) mesh_paths_generation++; - spin_unlock(&mesh_paths->hashwlock[hash_idx]); - read_unlock(&pathtbl_resize_lock); + spin_unlock_bh(&mesh_paths->hashwlock[hash_idx]); + read_unlock_bh(&pathtbl_resize_lock); if (grow) { set_bit(MESH_WORK_GROW_MPATH_TABLE, &ifmsh->wrkq_flags); ieee80211_queue_work(&local->hw, &sdata->work); @@ -315,8 +360,8 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata) return 0; err_exists: - spin_unlock(&mesh_paths->hashwlock[hash_idx]); - read_unlock(&pathtbl_resize_lock); + spin_unlock_bh(&mesh_paths->hashwlock[hash_idx]); + read_unlock_bh(&pathtbl_resize_lock); kfree(new_node); err_node_alloc: kfree(new_mpath); @@ -329,18 +374,21 @@ void mesh_mpath_table_grow(void) { struct mesh_table *oldtbl, *newtbl; - newtbl = mesh_table_alloc(mesh_paths->size_order + 1); + rcu_read_lock(); + newtbl = mesh_table_alloc(rcu_dereference(mesh_paths)->size_order + 1); if (!newtbl) return; - write_lock(&pathtbl_resize_lock); + write_lock_bh(&pathtbl_resize_lock); oldtbl = mesh_paths; if (mesh_table_grow(mesh_paths, newtbl) < 0) { + rcu_read_unlock(); __mesh_table_free(newtbl); - write_unlock(&pathtbl_resize_lock); + write_unlock_bh(&pathtbl_resize_lock); return; } + rcu_read_unlock(); rcu_assign_pointer(mesh_paths, newtbl); - write_unlock(&pathtbl_resize_lock); + write_unlock_bh(&pathtbl_resize_lock); synchronize_rcu(); mesh_table_free(oldtbl, false); @@ -350,18 +398,21 @@ void mesh_mpp_table_grow(void) { struct mesh_table *oldtbl, *newtbl; - newtbl = mesh_table_alloc(mpp_paths->size_order + 1); + rcu_read_lock(); + newtbl = mesh_table_alloc(rcu_dereference(mpp_paths)->size_order + 1); if (!newtbl) return; - write_lock(&pathtbl_resize_lock); + write_lock_bh(&pathtbl_resize_lock); oldtbl = mpp_paths; if (mesh_table_grow(mpp_paths, newtbl) < 0) { + rcu_read_unlock(); __mesh_table_free(newtbl); - write_unlock(&pathtbl_resize_lock); + write_unlock_bh(&pathtbl_resize_lock); return; } + rcu_read_unlock(); rcu_assign_pointer(mpp_paths, newtbl); - write_unlock(&pathtbl_resize_lock); + write_unlock_bh(&pathtbl_resize_lock); synchronize_rcu(); mesh_table_free(oldtbl, false); @@ -395,7 +446,7 @@ int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata) if (!new_node) goto err_node_alloc; - read_lock(&pathtbl_resize_lock); + read_lock_bh(&pathtbl_resize_lock); memcpy(new_mpath->dst, dst, ETH_ALEN); memcpy(new_mpath->mpp, mpp, ETH_ALEN); new_mpath->sdata = sdata; @@ -408,7 +459,7 @@ int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata) hash_idx = mesh_table_hash(dst, sdata, mpp_paths); bucket = &mpp_paths->hash_buckets[hash_idx]; - spin_lock(&mpp_paths->hashwlock[hash_idx]); + spin_lock_bh(&mpp_paths->hashwlock[hash_idx]); err = -EEXIST; hlist_for_each_entry(node, n, bucket, list) { @@ -422,8 +473,8 @@ int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata) mpp_paths->mean_chain_len * (mpp_paths->hash_mask + 1)) grow = 1; - spin_unlock(&mpp_paths->hashwlock[hash_idx]); - read_unlock(&pathtbl_resize_lock); + spin_unlock_bh(&mpp_paths->hashwlock[hash_idx]); + read_unlock_bh(&pathtbl_resize_lock); if (grow) { set_bit(MESH_WORK_GROW_MPP_TABLE, &ifmsh->wrkq_flags); ieee80211_queue_work(&local->hw, &sdata->work); @@ -431,8 +482,8 @@ int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata) return 0; err_exists: - spin_unlock(&mpp_paths->hashwlock[hash_idx]); - read_unlock(&pathtbl_resize_lock); + spin_unlock_bh(&mpp_paths->hashwlock[hash_idx]); + read_unlock_bh(&pathtbl_resize_lock); kfree(new_node); err_node_alloc: kfree(new_mpath); @@ -545,11 +596,11 @@ int mesh_path_del(u8 *addr, struct ieee80211_sub_if_data *sdata) int hash_idx; int err = 0; - read_lock(&pathtbl_resize_lock); + read_lock_bh(&pathtbl_resize_lock); hash_idx = mesh_table_hash(addr, sdata, mesh_paths); bucket = &mesh_paths->hash_buckets[hash_idx]; - spin_lock(&mesh_paths->hashwlock[hash_idx]); + spin_lock_bh(&mesh_paths->hashwlock[hash_idx]); hlist_for_each_entry(node, n, bucket, list) { mpath = node->mpath; if (mpath->sdata == sdata && @@ -567,8 +618,8 @@ int mesh_path_del(u8 *addr, struct ieee80211_sub_if_data *sdata) err = -ENXIO; enddel: mesh_paths_generation++; - spin_unlock(&mesh_paths->hashwlock[hash_idx]); - read_unlock(&pathtbl_resize_lock); + spin_unlock_bh(&mesh_paths->hashwlock[hash_idx]); + read_unlock_bh(&pathtbl_resize_lock); return err; } @@ -720,7 +771,7 @@ void mesh_path_expire(struct ieee80211_sub_if_data *sdata) struct hlist_node *p; int i; - read_lock(&pathtbl_resize_lock); + read_lock_bh(&pathtbl_resize_lock); for_each_mesh_entry(mesh_paths, p, node, i) { if (node->mpath->sdata != sdata) continue; @@ -735,7 +786,7 @@ void mesh_path_expire(struct ieee80211_sub_if_data *sdata) } else spin_unlock_bh(&mpath->state_lock); } - read_unlock(&pathtbl_resize_lock); + read_unlock_bh(&pathtbl_resize_lock); } void mesh_pathtbl_unregister(void) diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index 84e5b05..f4adc09 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -43,7 +43,7 @@ #define dot11MeshMaxPeerLinks(s) (s->u.mesh.mshcfg.dot11MeshMaxPeerLinks) enum plink_frame_type { - PLINK_OPEN = 0, + PLINK_OPEN = 1, PLINK_CONFIRM, PLINK_CLOSE }; @@ -83,7 +83,7 @@ void mesh_plink_dec_estab_count(struct ieee80211_sub_if_data *sdata) */ static inline void mesh_plink_fsm_restart(struct sta_info *sta) { - sta->plink_state = PLINK_LISTEN; + sta->plink_state = NL80211_PLINK_LISTEN; sta->llid = sta->plid = sta->reason = 0; sta->plink_retries = 0; } @@ -126,11 +126,11 @@ static bool __mesh_plink_deactivate(struct sta_info *sta) struct ieee80211_sub_if_data *sdata = sta->sdata; bool deactivated = false; - if (sta->plink_state == PLINK_ESTAB) { + if (sta->plink_state == NL80211_PLINK_ESTAB) { mesh_plink_dec_estab_count(sdata); deactivated = true; } - sta->plink_state = PLINK_BLOCKED; + sta->plink_state = NL80211_PLINK_BLOCKED; mesh_path_flush_by_nexthop(sta); return deactivated; @@ -181,8 +181,8 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata, IEEE80211_STYPE_ACTION); memcpy(mgmt->da, da, ETH_ALEN); memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); - /* BSSID is left zeroed, wildcard value */ - mgmt->u.action.category = WLAN_CATEGORY_MESH_PLINK; + memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN); + mgmt->u.action.category = WLAN_CATEGORY_MESH_ACTION; mgmt->u.action.u.plink_action.action_code = action; if (action == PLINK_CLOSE) @@ -251,7 +251,7 @@ void mesh_neighbour_update(u8 *hw_addr, u32 rates, rcu_read_unlock(); /* Userspace handles peer allocation when security is enabled * */ - if (sdata->u.mesh.is_secure) + if (sdata->u.mesh.security & IEEE80211_MESH_SEC_AUTHED) cfg80211_notify_new_peer_candidate(sdata->dev, hw_addr, elems->ie_start, elems->total_len, GFP_KERNEL); @@ -268,7 +268,7 @@ void mesh_neighbour_update(u8 *hw_addr, u32 rates, sta->last_rx = jiffies; sta->sta.supp_rates[local->hw.conf.channel->band] = rates; if (mesh_peer_accepts_plinks(elems) && - sta->plink_state == PLINK_LISTEN && + sta->plink_state == NL80211_PLINK_LISTEN && sdata->u.mesh.accepting_plinks && sdata->u.mesh.mshcfg.auto_open_plinks) mesh_plink_open(sta); @@ -308,8 +308,8 @@ static void mesh_plink_timer(unsigned long data) sdata = sta->sdata; switch (sta->plink_state) { - case PLINK_OPN_RCVD: - case PLINK_OPN_SNT: + case NL80211_PLINK_OPN_RCVD: + case NL80211_PLINK_OPN_SNT: /* retry timer */ if (sta->plink_retries < dot11MeshMaxRetries(sdata)) { u32 rand; @@ -328,17 +328,17 @@ static void mesh_plink_timer(unsigned long data) } reason = cpu_to_le16(MESH_MAX_RETRIES); /* fall through on else */ - case PLINK_CNF_RCVD: + case NL80211_PLINK_CNF_RCVD: /* confirm timer */ if (!reason) reason = cpu_to_le16(MESH_CONFIRM_TIMEOUT); - sta->plink_state = PLINK_HOLDING; + sta->plink_state = NL80211_PLINK_HOLDING; mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata)); spin_unlock_bh(&sta->lock); mesh_plink_frame_tx(sdata, PLINK_CLOSE, sta->sta.addr, llid, plid, reason); break; - case PLINK_HOLDING: + case NL80211_PLINK_HOLDING: /* holding timer */ del_timer(&sta->plink_timer); mesh_plink_fsm_restart(sta); @@ -386,11 +386,11 @@ int mesh_plink_open(struct sta_info *sta) spin_lock_bh(&sta->lock); get_random_bytes(&llid, 2); sta->llid = llid; - if (sta->plink_state != PLINK_LISTEN) { + if (sta->plink_state != NL80211_PLINK_LISTEN) { spin_unlock_bh(&sta->lock); return -EBUSY; } - sta->plink_state = PLINK_OPN_SNT; + sta->plink_state = NL80211_PLINK_OPN_SNT; mesh_plink_timer_set(sta, dot11MeshRetryTimeout(sdata)); spin_unlock_bh(&sta->lock); mpl_dbg("Mesh plink: starting establishment with %pM\n", @@ -407,7 +407,7 @@ void mesh_plink_block(struct sta_info *sta) spin_lock_bh(&sta->lock); deactivated = __mesh_plink_deactivate(sta); - sta->plink_state = PLINK_BLOCKED; + sta->plink_state = NL80211_PLINK_BLOCKED; spin_unlock_bh(&sta->lock); if (deactivated) @@ -430,13 +430,13 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m __le16 plid, llid, reason; #ifdef CONFIG_MAC80211_VERBOSE_MPL_DEBUG static const char *mplstates[] = { - [PLINK_LISTEN] = "LISTEN", - [PLINK_OPN_SNT] = "OPN-SNT", - [PLINK_OPN_RCVD] = "OPN-RCVD", - [PLINK_CNF_RCVD] = "CNF_RCVD", - [PLINK_ESTAB] = "ESTAB", - [PLINK_HOLDING] = "HOLDING", - [PLINK_BLOCKED] = "BLOCKED" + [NL80211_PLINK_LISTEN] = "LISTEN", + [NL80211_PLINK_OPN_SNT] = "OPN-SNT", + [NL80211_PLINK_OPN_RCVD] = "OPN-RCVD", + [NL80211_PLINK_CNF_RCVD] = "CNF_RCVD", + [NL80211_PLINK_ESTAB] = "ESTAB", + [NL80211_PLINK_HOLDING] = "HOLDING", + [NL80211_PLINK_BLOCKED] = "BLOCKED" }; #endif @@ -460,7 +460,8 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m mpl_dbg("Mesh plink: missing necessary peer link ie\n"); return; } - if (elems.rsn_len && !sdata->u.mesh.is_secure) { + if (elems.rsn_len && + sdata->u.mesh.security == IEEE80211_MESH_SEC_NONE) { mpl_dbg("Mesh plink: can't establish link with secure peer\n"); return; } @@ -501,7 +502,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m return; } - if (sta && sta->plink_state == PLINK_BLOCKED) { + if (sta && sta->plink_state == NL80211_PLINK_BLOCKED) { rcu_read_unlock(); return; } @@ -571,7 +572,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m event = CNF_ACPT; break; case PLINK_CLOSE: - if (sta->plink_state == PLINK_ESTAB) + if (sta->plink_state == NL80211_PLINK_ESTAB) /* Do not check for llid or plid. This does not * follow the standard but since multiple plinks * per sta are not supported, it is necessary in @@ -606,14 +607,14 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m reason = 0; switch (sta->plink_state) { /* spin_unlock as soon as state is updated at each case */ - case PLINK_LISTEN: + case NL80211_PLINK_LISTEN: switch (event) { case CLS_ACPT: mesh_plink_fsm_restart(sta); spin_unlock_bh(&sta->lock); break; case OPN_ACPT: - sta->plink_state = PLINK_OPN_RCVD; + sta->plink_state = NL80211_PLINK_OPN_RCVD; sta->plid = plid; get_random_bytes(&llid, 2); sta->llid = llid; @@ -630,7 +631,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m } break; - case PLINK_OPN_SNT: + case NL80211_PLINK_OPN_SNT: switch (event) { case OPN_RJCT: case CNF_RJCT: @@ -639,7 +640,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m if (!reason) reason = cpu_to_le16(MESH_CLOSE_RCVD); sta->reason = reason; - sta->plink_state = PLINK_HOLDING; + sta->plink_state = NL80211_PLINK_HOLDING; if (!mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata))) sta->ignore_plink_timer = true; @@ -651,7 +652,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m break; case OPN_ACPT: /* retry timer is left untouched */ - sta->plink_state = PLINK_OPN_RCVD; + sta->plink_state = NL80211_PLINK_OPN_RCVD; sta->plid = plid; llid = sta->llid; spin_unlock_bh(&sta->lock); @@ -659,7 +660,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m plid, 0); break; case CNF_ACPT: - sta->plink_state = PLINK_CNF_RCVD; + sta->plink_state = NL80211_PLINK_CNF_RCVD; if (!mod_plink_timer(sta, dot11MeshConfirmTimeout(sdata))) sta->ignore_plink_timer = true; @@ -672,7 +673,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m } break; - case PLINK_OPN_RCVD: + case NL80211_PLINK_OPN_RCVD: switch (event) { case OPN_RJCT: case CNF_RJCT: @@ -681,7 +682,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m if (!reason) reason = cpu_to_le16(MESH_CLOSE_RCVD); sta->reason = reason; - sta->plink_state = PLINK_HOLDING; + sta->plink_state = NL80211_PLINK_HOLDING; if (!mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata))) sta->ignore_plink_timer = true; @@ -699,7 +700,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m break; case CNF_ACPT: del_timer(&sta->plink_timer); - sta->plink_state = PLINK_ESTAB; + sta->plink_state = NL80211_PLINK_ESTAB; spin_unlock_bh(&sta->lock); mesh_plink_inc_estab_count(sdata); ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON); @@ -712,7 +713,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m } break; - case PLINK_CNF_RCVD: + case NL80211_PLINK_CNF_RCVD: switch (event) { case OPN_RJCT: case CNF_RJCT: @@ -721,7 +722,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m if (!reason) reason = cpu_to_le16(MESH_CLOSE_RCVD); sta->reason = reason; - sta->plink_state = PLINK_HOLDING; + sta->plink_state = NL80211_PLINK_HOLDING; if (!mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata))) sta->ignore_plink_timer = true; @@ -733,7 +734,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m break; case OPN_ACPT: del_timer(&sta->plink_timer); - sta->plink_state = PLINK_ESTAB; + sta->plink_state = NL80211_PLINK_ESTAB; spin_unlock_bh(&sta->lock); mesh_plink_inc_estab_count(sdata); ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON); @@ -748,13 +749,13 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m } break; - case PLINK_ESTAB: + case NL80211_PLINK_ESTAB: switch (event) { case CLS_ACPT: reason = cpu_to_le16(MESH_CLOSE_RCVD); sta->reason = reason; deactivated = __mesh_plink_deactivate(sta); - sta->plink_state = PLINK_HOLDING; + sta->plink_state = NL80211_PLINK_HOLDING; llid = sta->llid; mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata)); spin_unlock_bh(&sta->lock); @@ -774,7 +775,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m break; } break; - case PLINK_HOLDING: + case NL80211_PLINK_HOLDING: switch (event) { case CLS_ACPT: if (del_timer(&sta->plink_timer)) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index a41f234..4f6b267 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -750,6 +750,8 @@ void ieee80211_dynamic_ps_enable_work(struct work_struct *work) dynamic_ps_enable_work); struct ieee80211_sub_if_data *sdata = local->ps_sdata; struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + unsigned long flags; + int q; /* can only happen when PS was just disabled anyway */ if (!sdata) @@ -758,6 +760,24 @@ void ieee80211_dynamic_ps_enable_work(struct work_struct *work) if (local->hw.conf.flags & IEEE80211_CONF_PS) return; + /* + * transmission can be stopped by others which leads to + * dynamic_ps_timer expiry. Postpond the ps timer if it + * is not the actual idle state. + */ + spin_lock_irqsave(&local->queue_stop_reason_lock, flags); + for (q = 0; q < local->hw.queues; q++) { + if (local->queue_stop_reasons[q]) { + spin_unlock_irqrestore(&local->queue_stop_reason_lock, + flags); + mod_timer(&local->dynamic_ps_timer, jiffies + + msecs_to_jiffies( + local->hw.conf.dynamic_ps_timeout)); + return; + } + } + spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); + if ((local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) && (!(ifmgd->flags & IEEE80211_STA_NULLFUNC_ACKED))) { netif_tx_stop_all_queues(sdata->dev); @@ -781,7 +801,7 @@ void ieee80211_dynamic_ps_enable_work(struct work_struct *work) ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); } - netif_tx_start_all_queues(sdata->dev); + netif_tx_wake_all_queues(sdata->dev); } void ieee80211_dynamic_ps_timer(unsigned long data) diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c index 0424617..730778a 100644 --- a/net/mac80211/pm.c +++ b/net/mac80211/pm.c @@ -6,7 +6,7 @@ #include "driver-ops.h" #include "led.h" -int __ieee80211_suspend(struct ieee80211_hw *hw) +int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) { struct ieee80211_local *local = hw_to_local(hw); struct ieee80211_sub_if_data *sdata; @@ -47,6 +47,16 @@ int __ieee80211_suspend(struct ieee80211_hw *hw) cancel_work_sync(&local->dynamic_ps_enable_work); del_timer_sync(&local->dynamic_ps_timer); + local->wowlan = wowlan && local->open_count; + if (local->wowlan) { + int err = drv_suspend(local, wowlan); + if (err) { + local->quiescing = false; + return err; + } + goto suspend; + } + /* disable keys */ list_for_each_entry(sdata, &local->interfaces, list) ieee80211_disable_keys(sdata); @@ -104,6 +114,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw) if (local->open_count) ieee80211_stop_device(local); + suspend: local->suspended = true; /* need suspended to be visible before quiescing is false */ barrier(); diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c index 778c604..8adac67 100644 --- a/net/mac80211/rc80211_minstrel.c +++ b/net/mac80211/rc80211_minstrel.c @@ -417,8 +417,8 @@ minstrel_rate_init(void *priv, struct ieee80211_supported_band *sband, tx_time_single = mr->ack_time + mr->perfect_tx_time; /* contention window */ - tx_time_single += t_slot + min(cw, mp->cw_max); - cw = (cw << 1) | 1; + tx_time_single += (t_slot * cw) >> 1; + cw = min((cw << 1) | 1, mp->cw_max); tx_time += tx_time_single; tx_time_cts += tx_time_single + mi->sp_ack_dur; diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c index c06aa3a..333b511 100644 --- a/net/mac80211/rc80211_minstrel_ht.c +++ b/net/mac80211/rc80211_minstrel_ht.c @@ -464,6 +464,7 @@ minstrel_calc_retransmit(struct minstrel_priv *mp, struct minstrel_ht_sta *mi, const struct mcs_group *group; unsigned int tx_time, tx_time_rtscts, tx_time_data; unsigned int cw = mp->cw_min; + unsigned int ctime = 0; unsigned int t_slot = 9; /* FIXME */ unsigned int ampdu_len = MINSTREL_TRUNC(mi->avg_ampdu_len); @@ -480,13 +481,27 @@ minstrel_calc_retransmit(struct minstrel_priv *mp, struct minstrel_ht_sta *mi, group = &minstrel_mcs_groups[index / MCS_GROUP_RATES]; tx_time_data = group->duration[index % MCS_GROUP_RATES] * ampdu_len; - tx_time = 2 * (t_slot + mi->overhead + tx_time_data); - tx_time_rtscts = 2 * (t_slot + mi->overhead_rtscts + tx_time_data); + + /* Contention time for first 2 tries */ + ctime = (t_slot * cw) >> 1; + cw = min((cw << 1) | 1, mp->cw_max); + ctime += (t_slot * cw) >> 1; + cw = min((cw << 1) | 1, mp->cw_max); + + /* Total TX time for data and Contention after first 2 tries */ + tx_time = ctime + 2 * (mi->overhead + tx_time_data); + tx_time_rtscts = ctime + 2 * (mi->overhead_rtscts + tx_time_data); + + /* See how many more tries we can fit inside segment size */ do { - cw = (cw << 1) | 1; - cw = min(cw, mp->cw_max); - tx_time += cw + t_slot + mi->overhead; - tx_time_rtscts += cw + t_slot + mi->overhead_rtscts; + /* Contention time for this try */ + ctime = (t_slot * cw) >> 1; + cw = min((cw << 1) | 1, mp->cw_max); + + /* Total TX time after this try */ + tx_time += ctime + mi->overhead + tx_time_data; + tx_time_rtscts += ctime + mi->overhead_rtscts + tx_time_data; + if (tx_time_rtscts < mp->segment_size) mr->retry_count_rtscts++; } while ((tx_time < mp->segment_size) && diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 13a6697..7fa8c6b 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -404,11 +404,13 @@ ieee80211_rx_h_passive_scan(struct ieee80211_rx_data *rx) struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb); struct sk_buff *skb = rx->skb; - if (likely(!(status->rx_flags & IEEE80211_RX_IN_SCAN))) + if (likely(!(status->rx_flags & IEEE80211_RX_IN_SCAN) && + !local->sched_scanning)) return RX_CONTINUE; if (test_bit(SCAN_HW_SCANNING, &local->scanning) || - test_bit(SCAN_SW_SCANNING, &local->scanning)) + test_bit(SCAN_SW_SCANNING, &local->scanning) || + local->sched_scanning) return ieee80211_scan_rx(rx->sdata, skb); /* scanning finished during invoking of handlers */ @@ -488,15 +490,18 @@ ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx) * establisment frame, beacon or probe, drop the frame. */ - if (!rx->sta || sta_plink_state(rx->sta) != PLINK_ESTAB) { + if (!rx->sta || sta_plink_state(rx->sta) != NL80211_PLINK_ESTAB) { struct ieee80211_mgmt *mgmt; if (!ieee80211_is_mgmt(hdr->frame_control)) return RX_DROP_MONITOR; if (ieee80211_is_action(hdr->frame_control)) { + u8 category; mgmt = (struct ieee80211_mgmt *)hdr; - if (mgmt->u.action.category != WLAN_CATEGORY_MESH_PLINK) + category = mgmt->u.action.category; + if (category != WLAN_CATEGORY_MESH_ACTION && + category != WLAN_CATEGORY_SELF_PROTECTED) return RX_DROP_MONITOR; return RX_CONTINUE; } @@ -1778,7 +1783,7 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx) ieee80211_amsdu_to_8023s(skb, &frame_list, dev->dev_addr, rx->sdata->vif.type, - rx->local->hw.extra_tx_headroom); + rx->local->hw.extra_tx_headroom, true); while (!skb_queue_empty(&frame_list)) { rx->skb = __skb_dequeue(&frame_list); @@ -2205,7 +2210,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx) goto handled; } break; - case WLAN_CATEGORY_MESH_PLINK: + case WLAN_CATEGORY_MESH_ACTION: if (!ieee80211_vif_is_mesh(&sdata->vif)) break; goto queue; diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 489b6ad..d20046b 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -15,6 +15,7 @@ #include <linux/if_arp.h> #include <linux/rtnetlink.h> #include <linux/pm_qos_params.h> +#include <linux/slab.h> #include <net/sch_generic.h> #include <linux/slab.h> #include <net/mac80211.h> @@ -170,7 +171,7 @@ ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) return RX_CONTINUE; if (skb->len < 24) - return RX_DROP_MONITOR; + return RX_CONTINUE; presp = ieee80211_is_probe_resp(fc); if (presp) { @@ -850,3 +851,122 @@ void ieee80211_scan_cancel(struct ieee80211_local *local) } mutex_unlock(&local->mtx); } + +int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, + struct cfg80211_sched_scan_request *req) +{ + struct ieee80211_local *local = sdata->local; + int ret, i; + + mutex_lock(&sdata->local->mtx); + + if (local->sched_scanning) { + ret = -EBUSY; + goto out; + } + + if (!local->ops->sched_scan_start) { + ret = -ENOTSUPP; + goto out; + } + + for (i = 0; i < IEEE80211_NUM_BANDS; i++) { + local->sched_scan_ies.ie[i] = kzalloc(2 + + IEEE80211_MAX_SSID_LEN + + local->scan_ies_len, + GFP_KERNEL); + if (!local->sched_scan_ies.ie[i]) { + ret = -ENOMEM; + goto out_free; + } + + local->sched_scan_ies.len[i] = + ieee80211_build_preq_ies(local, + local->sched_scan_ies.ie[i], + req->ie, req->ie_len, i, + (u32) -1, 0); + } + + ret = drv_sched_scan_start(local, sdata, req, + &local->sched_scan_ies); + if (ret == 0) { + local->sched_scanning = true; + goto out; + } + +out_free: + while (i > 0) + kfree(local->sched_scan_ies.ie[--i]); +out: + mutex_unlock(&sdata->local->mtx); + return ret; +} + +int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + int ret = 0, i; + + mutex_lock(&sdata->local->mtx); + + if (!local->ops->sched_scan_stop) { + ret = -ENOTSUPP; + goto out; + } + + if (local->sched_scanning) { + for (i = 0; i < IEEE80211_NUM_BANDS; i++) + kfree(local->sched_scan_ies.ie[i]); + + drv_sched_scan_stop(local, sdata); + local->sched_scanning = false; + } +out: + mutex_unlock(&sdata->local->mtx); + + return ret; +} + +void ieee80211_sched_scan_results(struct ieee80211_hw *hw) +{ + struct ieee80211_local *local = hw_to_local(hw); + + trace_api_sched_scan_results(local); + + cfg80211_sched_scan_results(hw->wiphy); +} +EXPORT_SYMBOL(ieee80211_sched_scan_results); + +void ieee80211_sched_scan_stopped_work(struct work_struct *work) +{ + struct ieee80211_local *local = + container_of(work, struct ieee80211_local, + sched_scan_stopped_work); + int i; + + mutex_lock(&local->mtx); + + if (!local->sched_scanning) { + mutex_unlock(&local->mtx); + return; + } + + for (i = 0; i < IEEE80211_NUM_BANDS; i++) + kfree(local->sched_scan_ies.ie[i]); + + local->sched_scanning = false; + + mutex_unlock(&local->mtx); + + cfg80211_sched_scan_stopped(local->hw.wiphy); +} + +void ieee80211_sched_scan_stopped(struct ieee80211_hw *hw) +{ + struct ieee80211_local *local = hw_to_local(hw); + + trace_api_sched_scan_stopped(local); + + ieee80211_queue_work(&local->hw, &local->sched_scan_stopped_work); +} +EXPORT_SYMBOL(ieee80211_sched_scan_stopped); diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index d9e6e81..b83870b 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -67,7 +67,8 @@ static int sta_info_hash_del(struct ieee80211_local *local, { struct sta_info *s; - s = local->sta_hash[STA_HASH(sta->sta.addr)]; + s = rcu_dereference_protected(local->sta_hash[STA_HASH(sta->sta.addr)], + lockdep_is_held(&local->sta_lock)); if (!s) return -ENOENT; if (s == sta) { @@ -76,9 +77,11 @@ static int sta_info_hash_del(struct ieee80211_local *local, return 0; } - while (s->hnext && s->hnext != sta) - s = s->hnext; - if (s->hnext) { + while (rcu_access_pointer(s->hnext) && + rcu_access_pointer(s->hnext) != sta) + s = rcu_dereference_protected(s->hnext, + lockdep_is_held(&local->sta_lock)); + if (rcu_access_pointer(s->hnext)) { rcu_assign_pointer(s->hnext, sta->hnext); return 0; } @@ -274,7 +277,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ #ifdef CONFIG_MAC80211_MESH - sta->plink_state = PLINK_LISTEN; + sta->plink_state = NL80211_PLINK_LISTEN; init_timer(&sta->plink_timer); #endif @@ -652,10 +655,12 @@ static int __must_check __sta_info_destroy(struct sta_info *sta) if (ret) return ret; + mutex_lock(&local->key_mtx); for (i = 0; i < NUM_DEFAULT_KEYS; i++) - ieee80211_key_free(local, sta->gtk[i]); + __ieee80211_key_free(key_mtx_dereference(local, sta->gtk[i])); if (sta->ptk) - ieee80211_key_free(local, sta->ptk); + __ieee80211_key_free(key_mtx_dereference(local, sta->ptk)); + mutex_unlock(&local->key_mtx); sta->dead = true; diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index aa0adcb..c6ae871 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -152,6 +152,7 @@ struct tid_ampdu_rx { * * @tid_rx: aggregation info for Rx per TID -- RCU protected * @tid_tx: aggregation info for Tx per TID + * @tid_start_tx: sessions where start was requested * @addba_req_num: number of times addBA request has been sent. * @dialog_token_allocator: dialog token enumerator for each new session; * @work: work struct for starting/stopping aggregation @@ -163,40 +164,18 @@ struct tid_ampdu_rx { struct sta_ampdu_mlme { struct mutex mtx; /* rx */ - struct tid_ampdu_rx *tid_rx[STA_TID_NUM]; + struct tid_ampdu_rx __rcu *tid_rx[STA_TID_NUM]; unsigned long tid_rx_timer_expired[BITS_TO_LONGS(STA_TID_NUM)]; /* tx */ struct work_struct work; - struct tid_ampdu_tx *tid_tx[STA_TID_NUM]; + struct tid_ampdu_tx __rcu *tid_tx[STA_TID_NUM]; + struct tid_ampdu_tx *tid_start_tx[STA_TID_NUM]; u8 addba_req_num[STA_TID_NUM]; u8 dialog_token_allocator; }; /** - * enum plink_state - state of a mesh peer link finite state machine - * - * @PLINK_LISTEN: initial state, considered the implicit state of non existent - * mesh peer links - * @PLINK_OPN_SNT: mesh plink open frame has been sent to this mesh peer - * @PLINK_OPN_RCVD: mesh plink open frame has been received from this mesh peer - * @PLINK_CNF_RCVD: mesh plink confirm frame has been received from this mesh - * peer - * @PLINK_ESTAB: mesh peer link is established - * @PLINK_HOLDING: mesh peer link is being closed or cancelled - * @PLINK_BLOCKED: all frames transmitted from this mesh plink are discarded - */ -enum plink_state { - PLINK_LISTEN, - PLINK_OPN_SNT, - PLINK_OPN_RCVD, - PLINK_CNF_RCVD, - PLINK_ESTAB, - PLINK_HOLDING, - PLINK_BLOCKED -}; - -/** * struct sta_info - STA information * * This structure collects information about a station that @@ -264,11 +243,11 @@ enum plink_state { struct sta_info { /* General information, mostly static */ struct list_head list; - struct sta_info *hnext; + struct sta_info __rcu *hnext; struct ieee80211_local *local; struct ieee80211_sub_if_data *sdata; - struct ieee80211_key *gtk[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS]; - struct ieee80211_key *ptk; + struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS]; + struct ieee80211_key __rcu *ptk; struct rate_control_ref *rate_ctrl; void *rate_ctrl_priv; spinlock_t lock; @@ -339,7 +318,7 @@ struct sta_info { u8 plink_retries; bool ignore_plink_timer; bool plink_timer_was_running; - enum plink_state plink_state; + enum nl80211_plink_state plink_state; u32 plink_timeout; struct timer_list plink_timer; #endif @@ -357,12 +336,12 @@ struct sta_info { struct ieee80211_sta sta; }; -static inline enum plink_state sta_plink_state(struct sta_info *sta) +static inline enum nl80211_plink_state sta_plink_state(struct sta_info *sta) { #ifdef CONFIG_MAC80211_MESH return sta->plink_state; #endif - return PLINK_LISTEN; + return NL80211_PLINK_LISTEN; } static inline void set_sta_flags(struct sta_info *sta, const u32 flags) @@ -421,7 +400,16 @@ static inline u32 get_sta_flags(struct sta_info *sta) return ret; } +void ieee80211_assign_tid_tx(struct sta_info *sta, int tid, + struct tid_ampdu_tx *tid_tx); +static inline struct tid_ampdu_tx * +rcu_dereference_protected_tid_tx(struct sta_info *sta, int tid) +{ + return rcu_dereference_protected(sta->ampdu_mlme.tid_tx[tid], + lockdep_is_held(&sta->lock) || + lockdep_is_held(&sta->ampdu_mlme.mtx)); +} #define STA_HASH_SIZE 256 #define STA_HASH(sta) (sta[5]) diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index e3e3aa1..6eeaaa2 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1147,7 +1147,7 @@ static bool ieee80211_tx_prep_agg(struct ieee80211_tx_data *tx, * packet pass through because splicing the frames * back is already done. */ - tid_tx = tx->sta->ampdu_mlme.tid_tx[tid]; + tid_tx = rcu_dereference_protected_tid_tx(tx->sta, tid); if (!tid_tx) { /* do nothing, let packet pass through */ @@ -1751,6 +1751,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, ret = NETDEV_TX_OK; goto fail; } + rcu_read_lock(); if (!is_multicast_ether_addr(skb->data)) mppath = mpp_path_lookup(skb->data, sdata); @@ -1765,13 +1766,13 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, !(mppath && compare_ether_addr(mppath->mpp, skb->data))) { hdrlen = ieee80211_fill_mesh_addresses(&hdr, &fc, skb->data, skb->data + ETH_ALEN); + rcu_read_unlock(); meshhdrlen = ieee80211_new_mesh_header(&mesh_hdr, sdata, NULL, NULL); } else { int is_mesh_mcast = 1; const u8 *mesh_da; - rcu_read_lock(); if (is_multicast_ether_addr(skb->data)) /* DA TA mSA AE:SA */ mesh_da = skb->data; @@ -2534,8 +2535,9 @@ void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) skb_set_network_header(skb, 0); skb_set_transport_header(skb, 0); - /* send all internal mgmt frames on VO */ - skb_set_queue_mapping(skb, 0); + /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */ + skb_set_queue_mapping(skb, IEEE80211_AC_VO); + skb->priority = 7; /* * The other path calling ieee80211_xmit is from the tasklet, diff --git a/net/mac80211/util.c b/net/mac80211/util.c index ef0560a..d3fe2d2 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -1125,9 +1125,27 @@ int ieee80211_reconfig(struct ieee80211_local *local) struct sta_info *sta; int res; +#ifdef CONFIG_PM if (local->suspended) local->resuming = true; + if (local->wowlan) { + local->wowlan = false; + res = drv_resume(local); + if (res < 0) { + local->resuming = false; + return res; + } + if (res == 0) + goto wake_up; + WARN_ON(res > 1); + /* + * res is 1, which means the driver requested + * to go through a regular reset on wakeup. + */ + } +#endif + /* restart hardware */ if (local->open_count) { /* @@ -1258,6 +1276,7 @@ int ieee80211_reconfig(struct ieee80211_local *local) if (ieee80211_sdata_running(sdata)) ieee80211_enable_keys(sdata); + wake_up: ieee80211_wake_queues_by_reason(hw, IEEE80211_QUEUE_STOP_REASON_SUSPEND); diff --git a/net/rfkill/core.c b/net/rfkill/core.c index 0198191..be90640 100644 --- a/net/rfkill/core.c +++ b/net/rfkill/core.c @@ -1024,7 +1024,6 @@ static int rfkill_fop_open(struct inode *inode, struct file *file) * start getting events from elsewhere but hold mtx to get * startup events added first */ - list_add(&data->list, &rfkill_fds); list_for_each_entry(rfkill, &rfkill_list, node) { ev = kzalloc(sizeof(*ev), GFP_KERNEL); @@ -1033,6 +1032,7 @@ static int rfkill_fop_open(struct inode *inode, struct file *file) rfkill_fill_event(&ev->ev, rfkill, RFKILL_OP_ADD); list_add_tail(&ev->list, &data->events); } + list_add(&data->list, &rfkill_fds); mutex_unlock(&data->mtx); mutex_unlock(&rfkill_global_mutex); diff --git a/net/wireless/core.c b/net/wireless/core.c index bbf1fa1..c22ef34 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -370,7 +370,7 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv) spin_lock_init(&rdev->bss_lock); INIT_LIST_HEAD(&rdev->bss_list); INIT_WORK(&rdev->scan_done_wk, __cfg80211_scan_done); - + INIT_WORK(&rdev->sched_scan_results_wk, __cfg80211_sched_scan_results); #ifdef CONFIG_CFG80211_WEXT rdev->wiphy.wext = &cfg80211_wext_handler; #endif @@ -416,6 +416,67 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv) } EXPORT_SYMBOL(wiphy_new); +static int wiphy_verify_combinations(struct wiphy *wiphy) +{ + const struct ieee80211_iface_combination *c; + int i, j; + + /* If we have combinations enforce them */ + if (wiphy->n_iface_combinations) + wiphy->flags |= WIPHY_FLAG_ENFORCE_COMBINATIONS; + + for (i = 0; i < wiphy->n_iface_combinations; i++) { + u32 cnt = 0; + u16 all_iftypes = 0; + + c = &wiphy->iface_combinations[i]; + + /* Combinations with just one interface aren't real */ + if (WARN_ON(c->max_interfaces < 2)) + return -EINVAL; + + /* Need at least one channel */ + if (WARN_ON(!c->num_different_channels)) + return -EINVAL; + + if (WARN_ON(!c->n_limits)) + return -EINVAL; + + for (j = 0; j < c->n_limits; j++) { + u16 types = c->limits[j].types; + + /* + * interface types shouldn't overlap, this is + * used in cfg80211_can_change_interface() + */ + if (WARN_ON(types & all_iftypes)) + return -EINVAL; + all_iftypes |= types; + + if (WARN_ON(!c->limits[j].max)) + return -EINVAL; + + /* Shouldn't list software iftypes in combinations! */ + if (WARN_ON(wiphy->software_iftypes & types)) + return -EINVAL; + + cnt += c->limits[j].max; + /* + * Don't advertise an unsupported type + * in a combination. + */ + if (WARN_ON((wiphy->interface_modes & types) != types)) + return -EINVAL; + } + + /* You can't even choose that many! */ + if (WARN_ON(cnt < c->max_interfaces)) + return -EINVAL; + } + + return 0; +} + int wiphy_register(struct wiphy *wiphy) { struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); @@ -444,6 +505,10 @@ int wiphy_register(struct wiphy *wiphy) if (WARN_ON(ifmodes != wiphy->interface_modes)) wiphy->interface_modes = ifmodes; + res = wiphy_verify_combinations(wiphy); + if (res) + return res; + /* sanity check supported bands/channels */ for (band = 0; band < IEEE80211_NUM_BANDS; band++) { sband = wiphy->bands[band]; @@ -493,6 +558,13 @@ int wiphy_register(struct wiphy *wiphy) return -EINVAL; } + if (rdev->wiphy.wowlan.n_patterns) { + if (WARN_ON(!rdev->wiphy.wowlan.pattern_min_len || + rdev->wiphy.wowlan.pattern_min_len > + rdev->wiphy.wowlan.pattern_max_len)) + return -EINVAL; + } + /* check and set up bitrates */ ieee80211_set_bitrate_flags(wiphy); @@ -631,6 +703,7 @@ void cfg80211_dev_free(struct cfg80211_registered_device *rdev) mutex_destroy(&rdev->devlist_mtx); list_for_each_entry_safe(scan, tmp, &rdev->bss_list, list) cfg80211_put_bss(&scan->pub); + cfg80211_rdev_free_wowlan(rdev); kfree(rdev); } @@ -664,6 +737,11 @@ static void wdev_cleanup_work(struct work_struct *work) ___cfg80211_scan_done(rdev, true); } + if (WARN_ON(rdev->sched_scan_req && + rdev->sched_scan_req->dev == wdev->netdev)) { + __cfg80211_stop_sched_scan(rdev, false); + } + cfg80211_unlock_rdev(rdev); mutex_lock(&rdev->devlist_mtx); @@ -685,6 +763,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb, struct net_device *dev = ndev; struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev; + int ret; if (!wdev) return NOTIFY_DONE; @@ -751,6 +830,10 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb, break; case NL80211_IFTYPE_P2P_CLIENT: case NL80211_IFTYPE_STATION: + cfg80211_lock_rdev(rdev); + __cfg80211_stop_sched_scan(rdev, false); + cfg80211_unlock_rdev(rdev); + wdev_lock(wdev); #ifdef CONFIG_CFG80211_WEXT kfree(wdev->wext.ie); @@ -769,6 +852,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb, default: break; } + wdev->beacon_interval = 0; break; case NETDEV_DOWN: dev_hold(dev); @@ -875,6 +959,9 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb, return notifier_from_errno(-EOPNOTSUPP); if (rfkill_blocked(rdev->rfkill)) return notifier_from_errno(-ERFKILL); + ret = cfg80211_can_add_interface(rdev, wdev->iftype); + if (ret) + return notifier_from_errno(ret); break; } diff --git a/net/wireless/core.h b/net/wireless/core.h index 26a0a08..bf0fb40 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -60,8 +60,10 @@ struct cfg80211_registered_device { struct rb_root bss_tree; u32 bss_generation; struct cfg80211_scan_request *scan_req; /* protected by RTNL */ + struct cfg80211_sched_scan_request *sched_scan_req; unsigned long suspend_at; struct work_struct scan_done_wk; + struct work_struct sched_scan_results_wk; #ifdef CONFIG_NL80211_TESTMODE struct genl_info *testmode_info; @@ -70,6 +72,8 @@ struct cfg80211_registered_device { struct work_struct conn_work; struct work_struct event_work; + struct cfg80211_wowlan *wowlan; + /* must be last because of the way we do wiphy_priv(), * and it should at least be aligned to NETDEV_ALIGN */ struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN))); @@ -89,6 +93,18 @@ bool wiphy_idx_valid(int wiphy_idx) return wiphy_idx >= 0; } +static inline void +cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev) +{ + int i; + + if (!rdev->wowlan) + return; + for (i = 0; i < rdev->wowlan->n_patterns; i++) + kfree(rdev->wowlan->patterns[i].mask); + kfree(rdev->wowlan->patterns); + kfree(rdev->wowlan); +} extern struct workqueue_struct *cfg80211_wq; extern struct mutex cfg80211_mutex; @@ -397,12 +413,26 @@ void cfg80211_sme_rx_auth(struct net_device *dev, const u8 *buf, size_t len); void cfg80211_sme_disassoc(struct net_device *dev, int idx); void __cfg80211_scan_done(struct work_struct *wk); void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak); +void __cfg80211_sched_scan_results(struct work_struct *wk); +int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev, + bool driver_initiated); void cfg80211_upload_connect_keys(struct wireless_dev *wdev); int cfg80211_change_iface(struct cfg80211_registered_device *rdev, struct net_device *dev, enum nl80211_iftype ntype, u32 *flags, struct vif_params *params); void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev); +int cfg80211_can_change_interface(struct cfg80211_registered_device *rdev, + struct wireless_dev *wdev, + enum nl80211_iftype iftype); + +static inline int +cfg80211_can_add_interface(struct cfg80211_registered_device *rdev, + enum nl80211_iftype iftype) +{ + return cfg80211_can_change_interface(rdev, NULL, iftype); +} + struct ieee80211_channel * rdev_freq_to_chan(struct cfg80211_registered_device *rdev, int freq, enum nl80211_channel_type channel_type); @@ -412,6 +442,9 @@ int cfg80211_set_freq(struct cfg80211_registered_device *rdev, u16 cfg80211_calculate_bitrate(struct rate_info *rate); +int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev, + u32 beacon_int); + #ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS #define CFG80211_DEV_WARN_ON(cond) WARN_ON(cond) #else diff --git a/net/wireless/lib80211_crypt_wep.c b/net/wireless/lib80211_crypt_wep.c index e2e8887..2f265e0 100644 --- a/net/wireless/lib80211_crypt_wep.c +++ b/net/wireless/lib80211_crypt_wep.c @@ -96,13 +96,12 @@ static int lib80211_wep_build_iv(struct sk_buff *skb, int hdr_len, u8 *key, int keylen, void *priv) { struct lib80211_wep_data *wep = priv; - u32 klen, len; + u32 klen; u8 *pos; if (skb_headroom(skb) < 4 || skb->len < hdr_len) return -1; - len = skb->len - hdr_len; pos = skb_push(skb, 4); memmove(pos, pos + 4, hdr_len); pos += hdr_len; diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c index 16881fe..493b939 100644 --- a/net/wireless/mlme.c +++ b/net/wireless/mlme.c @@ -963,6 +963,16 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev, if (memcmp(mgmt->bssid, dev->dev_addr, ETH_ALEN)) err = -EINVAL; break; + case NL80211_IFTYPE_MESH_POINT: + if (memcmp(mgmt->sa, mgmt->bssid, ETH_ALEN)) { + err = -EINVAL; + break; + } + /* + * check for mesh DA must be done by driver as + * cfg80211 doesn't track the stations + */ + break; default: err = -EOPNOTSUPP; break; diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 0efa7fd..2222ce08 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -173,6 +173,9 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 }, [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG }, [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, + [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED }, + [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 }, + [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 }, }; /* policy for the key attributes */ @@ -194,6 +197,15 @@ nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = { [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG }, }; +/* policy for WoWLAN attributes */ +static const struct nla_policy +nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = { + [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG }, + [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG }, + [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG }, + [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED }, +}; + /* ifidx get helper */ static int nl80211_get_ifidx(struct netlink_callback *cb) { @@ -534,6 +546,7 @@ static int nl80211_key_allowed(struct wireless_dev *wdev) case NL80211_IFTYPE_AP: case NL80211_IFTYPE_AP_VLAN: case NL80211_IFTYPE_P2P_GO: + case NL80211_IFTYPE_MESH_POINT: break; case NL80211_IFTYPE_ADHOC: if (!wdev->current_bss) @@ -551,6 +564,88 @@ static int nl80211_key_allowed(struct wireless_dev *wdev) return 0; } +static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes) +{ + struct nlattr *nl_modes = nla_nest_start(msg, attr); + int i; + + if (!nl_modes) + goto nla_put_failure; + + i = 0; + while (ifmodes) { + if (ifmodes & 1) + NLA_PUT_FLAG(msg, i); + ifmodes >>= 1; + i++; + } + + nla_nest_end(msg, nl_modes); + return 0; + +nla_put_failure: + return -ENOBUFS; +} + +static int nl80211_put_iface_combinations(struct wiphy *wiphy, + struct sk_buff *msg) +{ + struct nlattr *nl_combis; + int i, j; + + nl_combis = nla_nest_start(msg, + NL80211_ATTR_INTERFACE_COMBINATIONS); + if (!nl_combis) + goto nla_put_failure; + + for (i = 0; i < wiphy->n_iface_combinations; i++) { + const struct ieee80211_iface_combination *c; + struct nlattr *nl_combi, *nl_limits; + + c = &wiphy->iface_combinations[i]; + + nl_combi = nla_nest_start(msg, i + 1); + if (!nl_combi) + goto nla_put_failure; + + nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS); + if (!nl_limits) + goto nla_put_failure; + + for (j = 0; j < c->n_limits; j++) { + struct nlattr *nl_limit; + + nl_limit = nla_nest_start(msg, j + 1); + if (!nl_limit) + goto nla_put_failure; + NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX, + c->limits[j].max); + if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES, + c->limits[j].types)) + goto nla_put_failure; + nla_nest_end(msg, nl_limit); + } + + nla_nest_end(msg, nl_limits); + + if (c->beacon_int_infra_match) + NLA_PUT_FLAG(msg, + NL80211_IFACE_COMB_STA_AP_BI_MATCH); + NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS, + c->num_different_channels); + NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM, + c->max_interfaces); + + nla_nest_end(msg, nl_combi); + } + + nla_nest_end(msg, nl_combis); + + return 0; +nla_put_failure: + return -ENOBUFS; +} + static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, struct cfg80211_registered_device *dev) { @@ -558,13 +653,11 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, struct nlattr *nl_bands, *nl_band; struct nlattr *nl_freqs, *nl_freq; struct nlattr *nl_rates, *nl_rate; - struct nlattr *nl_modes; struct nlattr *nl_cmds; enum ieee80211_band band; struct ieee80211_channel *chan; struct ieee80211_rate *rate; int i; - u16 ifmodes = dev->wiphy.interface_modes; const struct ieee80211_txrx_stypes *mgmt_stypes = dev->wiphy.mgmt_stypes; @@ -624,20 +717,10 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, } } - nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES); - if (!nl_modes) + if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES, + dev->wiphy.interface_modes)) goto nla_put_failure; - i = 0; - while (ifmodes) { - if (ifmodes & 1) - NLA_PUT_FLAG(msg, i); - ifmodes >>= 1; - i++; - } - - nla_nest_end(msg, nl_modes); - nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); if (!nl_bands) goto nla_put_failure; @@ -749,6 +832,8 @@ 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_SCHED_SCAN) + CMD(sched_scan_start, START_SCHED_SCAN); #undef CMD @@ -821,6 +906,42 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, nla_nest_end(msg, nl_ifs); } + if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) { + struct nlattr *nl_wowlan; + + nl_wowlan = nla_nest_start(msg, + NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED); + if (!nl_wowlan) + goto nla_put_failure; + + if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) + NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY); + if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) + NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT); + if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) + NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT); + if (dev->wiphy.wowlan.n_patterns) { + struct nl80211_wowlan_pattern_support pat = { + .max_patterns = dev->wiphy.wowlan.n_patterns, + .min_pattern_len = + dev->wiphy.wowlan.pattern_min_len, + .max_pattern_len = + dev->wiphy.wowlan.pattern_max_len, + }; + NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, + sizeof(pat), &pat); + } + + nla_nest_end(msg, nl_wowlan); + } + + if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES, + dev->wiphy.software_iftypes)) + goto nla_put_failure; + + if (nl80211_put_iface_combinations(&dev->wiphy, msg)) + goto nla_put_failure; + return genlmsg_end(msg, hdr); nla_put_failure: @@ -1682,14 +1803,6 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) if (err) goto out; - if (!(rdev->wiphy.flags & - WIPHY_FLAG_SUPPORTS_SEPARATE_DEFAULT_KEYS)) { - if (!key.def_uni || !key.def_multi) { - err = -EOPNOTSUPP; - goto out; - } - } - err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx, key.def_uni, key.def_multi); @@ -1840,8 +1953,9 @@ static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) struct beacon_parameters *info); struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; + struct wireless_dev *wdev = dev->ieee80211_ptr; struct beacon_parameters params; - int haveinfo = 0; + int haveinfo = 0, err; if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL])) return -EINVAL; @@ -1850,6 +1964,8 @@ static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) return -EOPNOTSUPP; + memset(¶ms, 0, sizeof(params)); + switch (info->genlhdr->cmd) { case NL80211_CMD_NEW_BEACON: /* these are required for NEW_BEACON */ @@ -1858,6 +1974,15 @@ static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) !info->attrs[NL80211_ATTR_BEACON_HEAD]) return -EINVAL; + params.interval = + nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); + params.dtim_period = + nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); + + err = cfg80211_validate_beacon_int(rdev, params.interval); + if (err) + return err; + call = rdev->ops->add_beacon; break; case NL80211_CMD_SET_BEACON: @@ -1871,20 +1996,6 @@ static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) if (!call) return -EOPNOTSUPP; - memset(¶ms, 0, sizeof(params)); - - if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { - params.interval = - nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); - haveinfo = 1; - } - - if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { - params.dtim_period = - nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); - haveinfo = 1; - } - if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); params.head_len = @@ -1902,13 +2013,18 @@ static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) if (!haveinfo) return -EINVAL; - return call(&rdev->wiphy, dev, ¶ms); + err = call(&rdev->wiphy, dev, ¶ms); + if (!err && params.interval) + wdev->beacon_interval = params.interval; + return err; } static int nl80211_del_beacon(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]; + struct wireless_dev *wdev = dev->ieee80211_ptr; + int err; if (!rdev->ops->del_beacon) return -EOPNOTSUPP; @@ -1917,7 +2033,10 @@ static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) return -EOPNOTSUPP; - return rdev->ops->del_beacon(&rdev->wiphy, dev); + err = rdev->ops->del_beacon(&rdev->wiphy, dev); + if (!err) + wdev->beacon_interval = 0; + return err; } static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { @@ -2216,6 +2335,7 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) memset(¶ms, 0, sizeof(params)); params.listen_interval = -1; + params.plink_state = -1; if (info->attrs[NL80211_ATTR_STA_AID]) return -EINVAL; @@ -2247,6 +2367,10 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) params.plink_action = nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); + if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) + params.plink_state = + nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]); + err = get_vlan(info, rdev, ¶ms.vlan); if (err) goto out; @@ -2286,10 +2410,9 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) err = -EINVAL; if (params.listen_interval >= 0) err = -EINVAL; - if (params.supported_rates) - err = -EINVAL; if (params.sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) | + BIT(NL80211_STA_FLAG_MFP) | BIT(NL80211_STA_FLAG_AUTHORIZED))) err = -EINVAL; break; @@ -2840,6 +2963,7 @@ static const struct nla_policy [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG }, [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY, .len = IEEE80211_MAX_DATA_LEN }, + [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG }, }; static int nl80211_parse_mesh_config(struct genl_info *info, @@ -2949,7 +3073,8 @@ static int nl80211_parse_mesh_setup(struct genl_info *info, setup->ie = nla_data(ieattr); setup->ie_len = nla_len(ieattr); } - setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]); + setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]); + setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]); return 0; } @@ -3318,6 +3443,188 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) return err; } +static int nl80211_start_sched_scan(struct sk_buff *skb, + struct genl_info *info) +{ + struct cfg80211_sched_scan_request *request; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct cfg80211_ssid *ssid; + struct ieee80211_channel *channel; + struct nlattr *attr; + struct wiphy *wiphy; + int err, tmp, n_ssids = 0, n_channels, i; + u32 interval; + enum ieee80211_band band; + size_t ie_len; + + if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || + !rdev->ops->sched_scan_start) + return -EOPNOTSUPP; + + if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) + return -EINVAL; + + if (rdev->sched_scan_req) + return -EINPROGRESS; + + if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) + return -EINVAL; + + interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]); + if (interval == 0) + return -EINVAL; + + wiphy = &rdev->wiphy; + + if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { + n_channels = validate_scan_freqs( + info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); + if (!n_channels) + return -EINVAL; + } else { + n_channels = 0; + + for (band = 0; band < IEEE80211_NUM_BANDS; band++) + if (wiphy->bands[band]) + n_channels += wiphy->bands[band]->n_channels; + } + + if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) + nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], + tmp) + n_ssids++; + + if (n_ssids > wiphy->max_scan_ssids) + return -EINVAL; + + if (info->attrs[NL80211_ATTR_IE]) + ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); + else + ie_len = 0; + + if (ie_len > wiphy->max_scan_ie_len) + return -EINVAL; + + request = kzalloc(sizeof(*request) + + sizeof(*ssid) * n_ssids + + sizeof(channel) * n_channels + + ie_len, GFP_KERNEL); + if (!request) + return -ENOMEM; + + if (n_ssids) + request->ssids = (void *)&request->channels[n_channels]; + request->n_ssids = n_ssids; + if (ie_len) { + if (request->ssids) + request->ie = (void *)(request->ssids + n_ssids); + else + request->ie = (void *)(request->channels + n_channels); + } + + i = 0; + if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { + /* user specified, bail out if channel not found */ + nla_for_each_nested(attr, + info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], + tmp) { + struct ieee80211_channel *chan; + + chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); + + if (!chan) { + err = -EINVAL; + goto out_free; + } + + /* ignore disabled channels */ + if (chan->flags & IEEE80211_CHAN_DISABLED) + continue; + + request->channels[i] = chan; + i++; + } + } else { + /* all channels */ + for (band = 0; band < IEEE80211_NUM_BANDS; band++) { + int j; + if (!wiphy->bands[band]) + continue; + for (j = 0; j < wiphy->bands[band]->n_channels; j++) { + struct ieee80211_channel *chan; + + chan = &wiphy->bands[band]->channels[j]; + + if (chan->flags & IEEE80211_CHAN_DISABLED) + continue; + + request->channels[i] = chan; + i++; + } + } + } + + if (!i) { + err = -EINVAL; + goto out_free; + } + + request->n_channels = i; + + i = 0; + if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { + nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], + tmp) { + if (request->ssids[i].ssid_len > + IEEE80211_MAX_SSID_LEN) { + err = -EINVAL; + goto out_free; + } + memcpy(request->ssids[i].ssid, nla_data(attr), + nla_len(attr)); + request->ssids[i].ssid_len = nla_len(attr); + i++; + } + } + + if (info->attrs[NL80211_ATTR_IE]) { + request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); + memcpy((void *)request->ie, + nla_data(info->attrs[NL80211_ATTR_IE]), + request->ie_len); + } + + request->dev = dev; + request->wiphy = &rdev->wiphy; + request->interval = interval; + + err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request); + if (!err) { + rdev->sched_scan_req = request; + nl80211_send_sched_scan(rdev, dev, + NL80211_CMD_START_SCHED_SCAN); + goto out; + } + +out_free: + kfree(request); +out: + return err; +} + +static int nl80211_stop_sched_scan(struct sk_buff *skb, + struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + + if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || + !rdev->ops->sched_scan_stop) + return -EOPNOTSUPP; + + return __cfg80211_stop_sched_scan(rdev, false); +} + static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags, struct cfg80211_registered_device *rdev, struct wireless_dev *wdev, @@ -4816,6 +5123,194 @@ static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info) return cfg80211_leave_mesh(rdev, dev); } +static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct sk_buff *msg; + void *hdr; + + if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns) + return -EOPNOTSUPP; + + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + if (!msg) + return -ENOMEM; + + hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, + NL80211_CMD_GET_WOWLAN); + if (!hdr) + goto nla_put_failure; + + if (rdev->wowlan) { + struct nlattr *nl_wowlan; + + nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); + if (!nl_wowlan) + goto nla_put_failure; + + if (rdev->wowlan->any) + NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY); + if (rdev->wowlan->disconnect) + NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT); + if (rdev->wowlan->magic_pkt) + NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT); + if (rdev->wowlan->n_patterns) { + struct nlattr *nl_pats, *nl_pat; + int i, pat_len; + + nl_pats = nla_nest_start(msg, + NL80211_WOWLAN_TRIG_PKT_PATTERN); + if (!nl_pats) + goto nla_put_failure; + + for (i = 0; i < rdev->wowlan->n_patterns; i++) { + nl_pat = nla_nest_start(msg, i + 1); + if (!nl_pat) + goto nla_put_failure; + pat_len = rdev->wowlan->patterns[i].pattern_len; + NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK, + DIV_ROUND_UP(pat_len, 8), + rdev->wowlan->patterns[i].mask); + NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN, + pat_len, + rdev->wowlan->patterns[i].pattern); + nla_nest_end(msg, nl_pat); + } + nla_nest_end(msg, nl_pats); + } + + nla_nest_end(msg, nl_wowlan); + } + + genlmsg_end(msg, hdr); + return genlmsg_reply(msg, info); + +nla_put_failure: + nlmsg_free(msg); + return -ENOBUFS; +} + +static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG]; + struct cfg80211_wowlan no_triggers = {}; + struct cfg80211_wowlan new_triggers = {}; + struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan; + int err, i; + + if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns) + return -EOPNOTSUPP; + + if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) + goto no_triggers; + + err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG, + nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), + nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), + nl80211_wowlan_policy); + if (err) + return err; + + if (tb[NL80211_WOWLAN_TRIG_ANY]) { + if (!(wowlan->flags & WIPHY_WOWLAN_ANY)) + return -EINVAL; + new_triggers.any = true; + } + + if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) { + if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT)) + return -EINVAL; + new_triggers.disconnect = true; + } + + if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) { + if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT)) + return -EINVAL; + new_triggers.magic_pkt = true; + } + + if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) { + struct nlattr *pat; + int n_patterns = 0; + int rem, pat_len, mask_len; + struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT]; + + nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], + rem) + n_patterns++; + if (n_patterns > wowlan->n_patterns) + return -EINVAL; + + new_triggers.patterns = kcalloc(n_patterns, + sizeof(new_triggers.patterns[0]), + GFP_KERNEL); + if (!new_triggers.patterns) + return -ENOMEM; + + new_triggers.n_patterns = n_patterns; + i = 0; + + nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], + rem) { + nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT, + nla_data(pat), nla_len(pat), NULL); + err = -EINVAL; + if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] || + !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]) + goto error; + pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]); + mask_len = DIV_ROUND_UP(pat_len, 8); + if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) != + mask_len) + goto error; + if (pat_len > wowlan->pattern_max_len || + pat_len < wowlan->pattern_min_len) + goto error; + + new_triggers.patterns[i].mask = + kmalloc(mask_len + pat_len, GFP_KERNEL); + if (!new_triggers.patterns[i].mask) { + err = -ENOMEM; + goto error; + } + new_triggers.patterns[i].pattern = + new_triggers.patterns[i].mask + mask_len; + memcpy(new_triggers.patterns[i].mask, + nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]), + mask_len); + new_triggers.patterns[i].pattern_len = pat_len; + memcpy(new_triggers.patterns[i].pattern, + nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]), + pat_len); + i++; + } + } + + if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) { + struct cfg80211_wowlan *ntrig; + ntrig = kmemdup(&new_triggers, sizeof(new_triggers), + GFP_KERNEL); + if (!ntrig) { + err = -ENOMEM; + goto error; + } + cfg80211_rdev_free_wowlan(rdev); + rdev->wowlan = ntrig; + } else { + no_triggers: + cfg80211_rdev_free_wowlan(rdev); + rdev->wowlan = NULL; + } + + return 0; + error: + for (i = 0; i < new_triggers.n_patterns; i++) + kfree(new_triggers.patterns[i].mask); + kfree(new_triggers.patterns); + return err; +} + #define NL80211_FLAG_NEED_WIPHY 0x01 #define NL80211_FLAG_NEED_NETDEV 0x02 #define NL80211_FLAG_NEED_RTNL 0x04 @@ -5100,6 +5595,22 @@ static struct genl_ops nl80211_ops[] = { .dumpit = nl80211_dump_scan, }, { + .cmd = NL80211_CMD_START_SCHED_SCAN, + .doit = nl80211_start_sched_scan, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, + }, + { + .cmd = NL80211_CMD_STOP_SCHED_SCAN, + .doit = nl80211_stop_sched_scan, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, + }, + { .cmd = NL80211_CMD_AUTHENTICATE, .doit = nl80211_authenticate, .policy = nl80211_policy, @@ -5314,6 +5825,22 @@ static struct genl_ops nl80211_ops[] = { .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, + { + .cmd = NL80211_CMD_GET_WOWLAN, + .doit = nl80211_get_wowlan, + .policy = nl80211_policy, + /* can be retrieved by unprivileged users */ + .internal_flags = NL80211_FLAG_NEED_WIPHY | + NL80211_FLAG_NEED_RTNL, + }, + { + .cmd = NL80211_CMD_SET_WOWLAN, + .doit = nl80211_set_wowlan, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_WIPHY | + NL80211_FLAG_NEED_RTNL, + }, }; static struct genl_multicast_group nl80211_mlme_mcgrp = { @@ -5409,6 +5936,28 @@ static int nl80211_send_scan_msg(struct sk_buff *msg, return -EMSGSIZE; } +static int +nl80211_send_sched_scan_msg(struct sk_buff *msg, + struct cfg80211_registered_device *rdev, + struct net_device *netdev, + u32 pid, u32 seq, int flags, u32 cmd) +{ + void *hdr; + + hdr = nl80211hdr_put(msg, pid, seq, flags, cmd); + if (!hdr) + return -1; + + NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); + NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); + + return genlmsg_end(msg, hdr); + + nla_put_failure: + genlmsg_cancel(msg, hdr); + return -EMSGSIZE; +} + void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, struct net_device *netdev) { @@ -5466,6 +6015,43 @@ void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, nl80211_scan_mcgrp.id, GFP_KERNEL); } +void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev, + struct net_device *netdev) +{ + struct sk_buff *msg; + + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + if (!msg) + return; + + if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, + NL80211_CMD_SCHED_SCAN_RESULTS) < 0) { + nlmsg_free(msg); + return; + } + + genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, + nl80211_scan_mcgrp.id, GFP_KERNEL); +} + +void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev, + struct net_device *netdev, u32 cmd) +{ + struct sk_buff *msg; + + msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); + if (!msg) + return; + + if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) { + nlmsg_free(msg); + return; + } + + genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, + nl80211_scan_mcgrp.id, GFP_KERNEL); +} + /* * This can happen on global regulatory changes or device specific settings * based on custom world regulatory domains. diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h index f2af695..2f1bfb8 100644 --- a/net/wireless/nl80211.h +++ b/net/wireless/nl80211.h @@ -12,6 +12,10 @@ void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, struct net_device *netdev); void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, struct net_device *netdev); +void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev, + struct net_device *netdev, u32 cmd); +void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev, + struct net_device *netdev); void nl80211_send_reg_change_event(struct regulatory_request *request); void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, struct net_device *netdev, diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 1613080..1ad0f39 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -672,11 +672,9 @@ static int freq_reg_info_regd(struct wiphy *wiphy, for (i = 0; i < regd->n_reg_rules; i++) { const struct ieee80211_reg_rule *rr; const struct ieee80211_freq_range *fr = NULL; - const struct ieee80211_power_rule *pr = NULL; rr = ®d->reg_rules[i]; fr = &rr->freq_range; - pr = &rr->power_rule; /* * We only need to know if one frequency rule was diff --git a/net/wireless/scan.c b/net/wireless/scan.c index fbf6f33..73a441d 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -93,6 +93,69 @@ void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted) } EXPORT_SYMBOL(cfg80211_scan_done); +void __cfg80211_sched_scan_results(struct work_struct *wk) +{ + struct cfg80211_registered_device *rdev; + + rdev = container_of(wk, struct cfg80211_registered_device, + sched_scan_results_wk); + + cfg80211_lock_rdev(rdev); + + /* we don't have sched_scan_req anymore if the scan is stopping */ + if (rdev->sched_scan_req) + nl80211_send_sched_scan_results(rdev, + rdev->sched_scan_req->dev); + + cfg80211_unlock_rdev(rdev); +} + +void cfg80211_sched_scan_results(struct wiphy *wiphy) +{ + /* ignore if we're not scanning */ + if (wiphy_to_dev(wiphy)->sched_scan_req) + queue_work(cfg80211_wq, + &wiphy_to_dev(wiphy)->sched_scan_results_wk); +} +EXPORT_SYMBOL(cfg80211_sched_scan_results); + +void cfg80211_sched_scan_stopped(struct wiphy *wiphy) +{ + struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + + cfg80211_lock_rdev(rdev); + __cfg80211_stop_sched_scan(rdev, true); + cfg80211_unlock_rdev(rdev); +} +EXPORT_SYMBOL(cfg80211_sched_scan_stopped); + +int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev, + bool driver_initiated) +{ + int err; + struct net_device *dev; + + ASSERT_RDEV_LOCK(rdev); + + if (!rdev->sched_scan_req) + return 0; + + dev = rdev->sched_scan_req->dev; + + if (!driver_initiated) { + err = rdev->ops->sched_scan_stop(&rdev->wiphy, dev); + if (err) + return err; + } + + nl80211_send_sched_scan(rdev, dev, NL80211_CMD_SCHED_SCAN_STOPPED); + + kfree(rdev->sched_scan_req); + rdev->sched_scan_req = NULL; + + return err; +} + static void bss_release(struct kref *ref) { struct cfg80211_internal_bss *bss; @@ -210,7 +273,7 @@ static bool is_mesh(struct cfg80211_bss *a, { const u8 *ie; - if (!is_zero_ether_addr(a->bssid)) + if (!WLAN_CAPABILITY_IS_MBSS(a->capability)) return false; ie = cfg80211_find_ie(WLAN_EID_MESH_ID, @@ -248,11 +311,7 @@ static int cmp_bss(struct cfg80211_bss *a, if (a->channel != b->channel) return b->channel->center_freq - a->channel->center_freq; - r = memcmp(a->bssid, b->bssid, ETH_ALEN); - if (r) - return r; - - if (is_zero_ether_addr(a->bssid)) { + if (WLAN_CAPABILITY_IS_MBSS(a->capability | b->capability)) { r = cmp_ies(WLAN_EID_MESH_ID, a->information_elements, a->len_information_elements, @@ -267,6 +326,10 @@ static int cmp_bss(struct cfg80211_bss *a, b->len_information_elements); } + r = memcmp(a->bssid, b->bssid, ETH_ALEN); + if (r) + return r; + return cmp_ies(WLAN_EID_SSID, a->information_elements, a->len_information_elements, @@ -407,7 +470,7 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev, res->ts = jiffies; - if (is_zero_ether_addr(res->pub.bssid)) { + if (WLAN_CAPABILITY_IS_MBSS(res->pub.capability)) { /* must be mesh, verify */ meshid = cfg80211_find_ie(WLAN_EID_MESH_ID, res->pub.information_elements, diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c index 4294fa2..c6e4ca6 100644 --- a/net/wireless/sysfs.c +++ b/net/wireless/sysfs.c @@ -93,7 +93,7 @@ static int wiphy_suspend(struct device *dev, pm_message_t state) if (rdev->ops->suspend) { rtnl_lock(); - ret = rdev->ops->suspend(&rdev->wiphy); + ret = rdev->ops->suspend(&rdev->wiphy, rdev->wowlan); rtnl_unlock(); } diff --git a/net/wireless/util.c b/net/wireless/util.c index 6a750bc..f0536d4 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -544,7 +544,8 @@ EXPORT_SYMBOL(ieee80211_data_from_8023); void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list, const u8 *addr, enum nl80211_iftype iftype, - const unsigned int extra_headroom) + const unsigned int extra_headroom, + bool has_80211_header) { struct sk_buff *frame = NULL; u16 ethertype; @@ -553,14 +554,18 @@ void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list, int remaining, err; u8 dst[ETH_ALEN], src[ETH_ALEN]; - err = ieee80211_data_to_8023(skb, addr, iftype); - if (err) - goto out; + if (has_80211_header) { + err = ieee80211_data_to_8023(skb, addr, iftype); + if (err) + goto out; - /* skip the wrapping header */ - eth = (struct ethhdr *) skb_pull(skb, sizeof(struct ethhdr)); - if (!eth) - goto out; + /* skip the wrapping header */ + eth = (struct ethhdr *) skb_pull(skb, sizeof(struct ethhdr)); + if (!eth) + goto out; + } else { + eth = (struct ethhdr *) skb->data; + } while (skb != frame) { u8 padding; @@ -803,6 +808,11 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev, return -EBUSY; if (ntype != otype) { + err = cfg80211_can_change_interface(rdev, dev->ieee80211_ptr, + ntype); + if (err) + return err; + dev->ieee80211_ptr->use_4addr = false; dev->ieee80211_ptr->mesh_id_up_len = 0; @@ -896,3 +906,103 @@ u16 cfg80211_calculate_bitrate(struct rate_info *rate) /* do NOT round down here */ return (bitrate + 50000) / 100000; } + +int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev, + u32 beacon_int) +{ + struct wireless_dev *wdev; + int res = 0; + + if (!beacon_int) + return -EINVAL; + + mutex_lock(&rdev->devlist_mtx); + + list_for_each_entry(wdev, &rdev->netdev_list, list) { + if (!wdev->beacon_interval) + continue; + if (wdev->beacon_interval != beacon_int) { + res = -EINVAL; + break; + } + } + + mutex_unlock(&rdev->devlist_mtx); + + return res; +} + +int cfg80211_can_change_interface(struct cfg80211_registered_device *rdev, + struct wireless_dev *wdev, + enum nl80211_iftype iftype) +{ + struct wireless_dev *wdev_iter; + int num[NUM_NL80211_IFTYPES]; + int total = 1; + int i, j; + + ASSERT_RTNL(); + + /* Always allow software iftypes */ + if (rdev->wiphy.software_iftypes & BIT(iftype)) + return 0; + + /* + * Drivers will gradually all set this flag, until all + * have it we only enforce for those that set it. + */ + if (!(rdev->wiphy.flags & WIPHY_FLAG_ENFORCE_COMBINATIONS)) + return 0; + + memset(num, 0, sizeof(num)); + + num[iftype] = 1; + + mutex_lock(&rdev->devlist_mtx); + list_for_each_entry(wdev_iter, &rdev->netdev_list, list) { + if (wdev_iter == wdev) + continue; + if (!netif_running(wdev_iter->netdev)) + continue; + + if (rdev->wiphy.software_iftypes & BIT(wdev_iter->iftype)) + continue; + + num[wdev_iter->iftype]++; + total++; + } + mutex_unlock(&rdev->devlist_mtx); + + for (i = 0; i < rdev->wiphy.n_iface_combinations; i++) { + const struct ieee80211_iface_combination *c; + struct ieee80211_iface_limit *limits; + + c = &rdev->wiphy.iface_combinations[i]; + + limits = kmemdup(c->limits, sizeof(limits[0]) * c->n_limits, + GFP_KERNEL); + if (!limits) + return -ENOMEM; + if (total > c->max_interfaces) + goto cont; + + for (iftype = 0; iftype < NUM_NL80211_IFTYPES; iftype++) { + if (rdev->wiphy.software_iftypes & BIT(iftype)) + continue; + for (j = 0; j < c->n_limits; j++) { + if (!(limits[j].types & iftype)) + continue; + if (limits[j].max < num[iftype]) + goto cont; + limits[j].max -= num[iftype]; + } + } + /* yay, it fits */ + kfree(limits); + return 0; + cont: + kfree(limits); + } + + return -EBUSY; +} |
