diff options
Diffstat (limited to 'net')
41 files changed, 1087 insertions, 544 deletions
diff --git a/net/6lowpan/Kconfig b/net/6lowpan/Kconfig new file mode 100644 index 0000000..028a5c6 --- /dev/null +++ b/net/6lowpan/Kconfig @@ -0,0 +1,6 @@ +config 6LOWPAN + bool "6LoWPAN Support" + depends on IPV6 + ---help--- + This enables IPv6 over Low power Wireless Personal Area Network - + "6LoWPAN" which is supported by IEEE 802.15.4 or Bluetooth stacks. diff --git a/net/6lowpan/Makefile b/net/6lowpan/Makefile new file mode 100644 index 0000000..415886b --- /dev/null +++ b/net/6lowpan/Makefile @@ -0,0 +1,3 @@ +obj-$(CONFIG_6LOWPAN) := 6lowpan.o + +6lowpan-y := iphc.o diff --git a/net/ieee802154/6lowpan_iphc.c b/net/6lowpan/iphc.c index a1b7117..a1b7117 100644 --- a/net/ieee802154/6lowpan_iphc.c +++ b/net/6lowpan/iphc.c diff --git a/net/Kconfig b/net/Kconfig index d92afe4..4051fdf 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -214,6 +214,7 @@ source "drivers/net/appletalk/Kconfig" source "net/x25/Kconfig" source "net/lapb/Kconfig" source "net/phonet/Kconfig" +source "net/6lowpan/Kconfig" source "net/ieee802154/Kconfig" source "net/mac802154/Kconfig" source "net/sched/Kconfig" diff --git a/net/Makefile b/net/Makefile index cbbbe6d..7ed1970 100644 --- a/net/Makefile +++ b/net/Makefile @@ -57,7 +57,8 @@ obj-$(CONFIG_CAIF) += caif/ ifneq ($(CONFIG_DCB),) obj-y += dcb/ endif -obj-y += ieee802154/ +obj-$(CONFIG_6LOWPAN) += 6lowpan/ +obj-$(CONFIG_IEEE802154) += ieee802154/ obj-$(CONFIG_MAC802154) += mac802154/ ifeq ($(CONFIG_NET),y) diff --git a/net/bluetooth/Kconfig b/net/bluetooth/Kconfig index f5afaa2..600fb29 100644 --- a/net/bluetooth/Kconfig +++ b/net/bluetooth/Kconfig @@ -41,8 +41,7 @@ menuconfig BT config BT_6LOWPAN tristate "Bluetooth 6LoWPAN support" - depends on BT && IPV6 - select 6LOWPAN_IPHC if BT_6LOWPAN + depends on BT && 6LOWPAN help IPv6 compression over Bluetooth Low Energy. diff --git a/net/bluetooth/amp.c b/net/bluetooth/amp.c index bb39509..016cdb6 100644 --- a/net/bluetooth/amp.c +++ b/net/bluetooth/amp.c @@ -113,8 +113,9 @@ struct hci_conn *phylink_add(struct hci_dev *hdev, struct amp_mgr *mgr, { bdaddr_t *dst = &mgr->l2cap_conn->hcon->dst; struct hci_conn *hcon; + u8 role = out ? HCI_ROLE_MASTER : HCI_ROLE_SLAVE; - hcon = hci_conn_add(hdev, AMP_LINK, dst); + hcon = hci_conn_add(hdev, AMP_LINK, dst, role); if (!hcon) return NULL; @@ -125,7 +126,6 @@ struct hci_conn *phylink_add(struct hci_dev *hdev, struct amp_mgr *mgr, hcon->handle = __next_handle(mgr); hcon->remote_id = remote_id; hcon->amp_mgr = amp_mgr_get(mgr); - hcon->out = out; return hcon; } @@ -133,8 +133,8 @@ struct hci_conn *phylink_add(struct hci_dev *hdev, struct amp_mgr *mgr, /* AMP crypto key generation interface */ static int hmac_sha256(u8 *key, u8 ksize, char *plaintext, u8 psize, u8 *output) { - int ret = 0; struct crypto_shash *tfm; + int ret; if (!ksize) return -EINVAL; diff --git a/net/bluetooth/cmtp/capi.c b/net/bluetooth/cmtp/capi.c index cd75e4d..1ca8a87 100644 --- a/net/bluetooth/cmtp/capi.c +++ b/net/bluetooth/cmtp/capi.c @@ -362,12 +362,6 @@ void cmtp_recv_capimsg(struct cmtp_session *session, struct sk_buff *skb) CAPIMSG_SETCONTROL(skb->data, contr); } - if (!ctrl) { - BT_ERR("Can't find controller %d for message", session->num); - kfree_skb(skb); - return; - } - capi_ctr_handle_message(ctrl, appl, skb); } diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index 490ee88..b50dabb 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -66,8 +66,7 @@ static void hci_acl_create_connection(struct hci_conn *conn) conn->state = BT_CONNECT; conn->out = true; - - set_bit(HCI_CONN_MASTER, &conn->flags); + conn->role = HCI_ROLE_MASTER; conn->attempt++; @@ -335,7 +334,7 @@ static void hci_conn_timeout(struct work_struct *work) * event handling and hci_clock_offset_evt function. */ if (conn->type == ACL_LINK && - test_bit(HCI_CONN_MASTER, &conn->flags)) { + conn->role == HCI_ROLE_MASTER) { struct hci_dev *hdev = conn->hdev; struct hci_cp_read_clock_offset cp; @@ -422,13 +421,14 @@ static void le_conn_timeout(struct work_struct *work) hci_le_create_connection_cancel(conn); } -struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst) +struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst, + u8 role) { struct hci_conn *conn; BT_DBG("%s dst %pMR", hdev->name, dst); - conn = kzalloc(sizeof(struct hci_conn), GFP_KERNEL); + conn = kzalloc(sizeof(*conn), GFP_KERNEL); if (!conn) return NULL; @@ -436,6 +436,7 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst) bacpy(&conn->src, &hdev->bdaddr); conn->hdev = hdev; conn->type = type; + conn->role = role; conn->mode = HCI_CM_ACTIVE; conn->state = BT_OPEN; conn->auth_type = HCI_AT_GENERAL_BONDING; @@ -448,6 +449,9 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst) set_bit(HCI_CONN_POWER_SAVE, &conn->flags); conn->disc_timeout = HCI_DISCONN_TIMEOUT; + if (conn->role == HCI_ROLE_MASTER) + conn->out = true; + switch (type) { case ACL_LINK: conn->pkt_type = hdev->pkt_type & ACL_PTYPE_MASK; @@ -698,7 +702,7 @@ static void hci_req_directed_advertising(struct hci_request *req, struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, u8 dst_type, u8 sec_level, u16 conn_timeout, - bool master) + u8 role) { struct hci_conn_params *params; struct hci_conn *conn; @@ -747,7 +751,7 @@ struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, dst_type = ADDR_LE_DEV_RANDOM; } - conn = hci_conn_add(hdev, LE_LINK, dst); + conn = hci_conn_add(hdev, LE_LINK, dst, role); if (!conn) return ERR_PTR(-ENOMEM); @@ -771,7 +775,7 @@ struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, } /* If requested to connect as slave use directed advertising */ - if (!master) { + if (conn->role == HCI_ROLE_SLAVE) { /* If we're active scanning most controllers are unable * to initiate advertising. Simply reject the attempt. */ @@ -786,9 +790,6 @@ struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, goto create_conn; } - conn->out = true; - set_bit(HCI_CONN_MASTER, &conn->flags); - params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type); if (params) { conn->le_conn_min_interval = params->conn_min_interval; @@ -833,11 +834,11 @@ struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, struct hci_conn *acl; if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) - return ERR_PTR(-ENOTSUPP); + return ERR_PTR(-EOPNOTSUPP); acl = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst); if (!acl) { - acl = hci_conn_add(hdev, ACL_LINK, dst); + acl = hci_conn_add(hdev, ACL_LINK, dst, HCI_ROLE_MASTER); if (!acl) return ERR_PTR(-ENOMEM); } @@ -866,7 +867,7 @@ struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, sco = hci_conn_hash_lookup_ba(hdev, type, dst); if (!sco) { - sco = hci_conn_add(hdev, type, dst); + sco = hci_conn_add(hdev, type, dst, HCI_ROLE_MASTER); if (!sco) { hci_conn_drop(acl); return ERR_PTR(-ENOMEM); @@ -972,7 +973,8 @@ static void hci_conn_encrypt(struct hci_conn *conn) } /* Enable security */ -int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type) +int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type, + bool initiator) { BT_DBG("hcon %p", conn); @@ -1025,6 +1027,9 @@ auth: if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) return 0; + if (initiator) + set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags); + if (!hci_conn_auth(conn, sec_level, auth_type)) return 0; @@ -1076,7 +1081,7 @@ int hci_conn_switch_role(struct hci_conn *conn, __u8 role) { BT_DBG("hcon %p", conn); - if (!role && test_bit(HCI_CONN_MASTER, &conn->flags)) + if (role == conn->role) return 1; if (!test_and_set_bit(HCI_CONN_RSWITCH_PEND, &conn->flags)) { @@ -1151,7 +1156,7 @@ static u32 get_link_mode(struct hci_conn *conn) { u32 link_mode = 0; - if (test_bit(HCI_CONN_MASTER, &conn->flags)) + if (conn->role == HCI_ROLE_MASTER) link_mode |= HCI_LM_MASTER; if (test_bit(HCI_CONN_ENCRYPT, &conn->flags)) @@ -1277,7 +1282,7 @@ struct hci_chan *hci_chan_create(struct hci_conn *conn) BT_DBG("%s hcon %p", hdev->name, conn); - chan = kzalloc(sizeof(struct hci_chan), GFP_KERNEL); + chan = kzalloc(sizeof(*chan), GFP_KERNEL); if (!chan) return NULL; diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 84431b8..cfcb6055 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -54,6 +54,15 @@ DEFINE_RWLOCK(hci_cb_list_lock); /* HCI ID Numbering */ static DEFINE_IDA(hci_index_ida); +/* ----- HCI requests ----- */ + +#define HCI_REQ_DONE 0 +#define HCI_REQ_PEND 1 +#define HCI_REQ_CANCELED 2 + +#define hci_req_lock(d) mutex_lock(&d->req_lock) +#define hci_req_unlock(d) mutex_unlock(&d->req_lock) + /* ---- HCI notifications ---- */ static void hci_notify(struct hci_dev *hdev, int event) @@ -1339,9 +1348,6 @@ static void le_setup(struct hci_request *req) /* Read LE Supported States */ hci_req_add(req, HCI_OP_LE_READ_SUPPORTED_STATES, 0, NULL); - /* Read LE Advertising Channel TX Power */ - hci_req_add(req, HCI_OP_LE_READ_ADV_TX_POWER, 0, NULL); - /* Read LE White List Size */ hci_req_add(req, HCI_OP_LE_READ_WHITE_LIST_SIZE, 0, NULL); @@ -1416,14 +1422,17 @@ static void hci_setup_event_mask(struct hci_request *req) /* Use a different default for LE-only devices */ memset(events, 0, sizeof(events)); events[0] |= 0x10; /* Disconnection Complete */ - events[0] |= 0x80; /* Encryption Change */ events[1] |= 0x08; /* Read Remote Version Information Complete */ events[1] |= 0x20; /* Command Complete */ events[1] |= 0x40; /* Command Status */ events[1] |= 0x80; /* Hardware Error */ events[2] |= 0x04; /* Number of Completed Packets */ events[3] |= 0x02; /* Data Buffer Overflow */ - events[5] |= 0x80; /* Encryption Key Refresh Complete */ + + if (hdev->le_features[0] & HCI_LE_ENCRYPTION) { + events[0] |= 0x80; /* Encryption Change */ + events[5] |= 0x80; /* Encryption Key Refresh Complete */ + } } if (lmp_inq_rssi_capable(hdev)) @@ -1476,8 +1485,6 @@ static void hci_init2_req(struct hci_request *req, unsigned long opt) if (lmp_le_capable(hdev)) le_setup(req); - hci_setup_event_mask(req); - /* AVM Berlin (31), aka "BlueFRITZ!", doesn't support the read * local supported commands HCI command. */ @@ -1605,6 +1612,8 @@ static void hci_init3_req(struct hci_request *req, unsigned long opt) struct hci_dev *hdev = req->hdev; u8 p; + hci_setup_event_mask(req); + /* Some Broadcom based Bluetooth controllers do not support the * Delete Stored Link Key command. They are clearly indicating its * absence in the bit mask of supported commands. @@ -1635,7 +1644,10 @@ static void hci_init3_req(struct hci_request *req, unsigned long opt) u8 events[8]; memset(events, 0, sizeof(events)); - events[0] = 0x1f; + events[0] = 0x0f; + + if (hdev->le_features[0] & HCI_LE_ENCRYPTION) + events[0] |= 0x10; /* LE Long Term Key Request */ /* If controller supports the Connection Parameters Request * Link Layer Procedure, enable the corresponding event. @@ -1648,6 +1660,11 @@ static void hci_init3_req(struct hci_request *req, unsigned long opt) hci_req_add(req, HCI_OP_LE_SET_EVENT_MASK, sizeof(events), events); + if (hdev->commands[25] & 0x40) { + /* Read LE Advertising Channel TX Power */ + hci_req_add(req, HCI_OP_LE_READ_ADV_TX_POWER, 0, NULL); + } + hci_set_le_support(req); } @@ -2071,7 +2088,7 @@ u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, } /* Entry not in the cache. Add new one. */ - ie = kzalloc(sizeof(struct inquiry_entry), GFP_ATOMIC); + ie = kzalloc(sizeof(*ie), GFP_KERNEL); if (!ie) { flags |= MGMT_DEV_FOUND_CONFIRM_NAME; goto done; @@ -2435,6 +2452,16 @@ int hci_dev_open(__u16 dev) */ flush_workqueue(hdev->req_workqueue); + /* For controllers not using the management interface and that + * are brought up using legacy ioctl, set the HCI_PAIRABLE bit + * so that pairing works for them. Once the management interface + * is in use this bit will be cleared again and userspace has + * to explicitly enable it. + */ + if (!test_bit(HCI_USER_CHANNEL, &hdev->dev_flags) && + !test_bit(HCI_MGMT, &hdev->dev_flags)) + set_bit(HCI_PAIRABLE, &hdev->dev_flags); + err = hci_dev_do_open(hdev); done: @@ -2655,6 +2682,42 @@ done: return ret; } +static void hci_update_scan_state(struct hci_dev *hdev, u8 scan) +{ + bool conn_changed, discov_changed; + + BT_DBG("%s scan 0x%02x", hdev->name, scan); + + if ((scan & SCAN_PAGE)) + conn_changed = !test_and_set_bit(HCI_CONNECTABLE, + &hdev->dev_flags); + else + conn_changed = test_and_clear_bit(HCI_CONNECTABLE, + &hdev->dev_flags); + + if ((scan & SCAN_INQUIRY)) { + discov_changed = !test_and_set_bit(HCI_DISCOVERABLE, + &hdev->dev_flags); + } else { + clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags); + discov_changed = test_and_clear_bit(HCI_DISCOVERABLE, + &hdev->dev_flags); + } + + if (!test_bit(HCI_MGMT, &hdev->dev_flags)) + return; + + if (conn_changed || discov_changed) { + /* In case this was disabled through mgmt */ + set_bit(HCI_BREDR_ENABLED, &hdev->dev_flags); + + if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) + mgmt_update_adv_data(hdev); + + mgmt_new_settings(hdev); + } +} + int hci_dev_cmd(unsigned int cmd, void __user *arg) { struct hci_dev *hdev; @@ -2716,22 +2779,11 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg) err = hci_req_sync(hdev, hci_scan_req, dr.dev_opt, HCI_INIT_TIMEOUT); - /* Ensure that the connectable state gets correctly - * notified if the whitelist is in use. + /* Ensure that the connectable and discoverable states + * get correctly modified as this was a non-mgmt change. */ - if (!err && !list_empty(&hdev->whitelist)) { - bool changed; - - if ((dr.dev_opt & SCAN_PAGE)) - changed = !test_and_set_bit(HCI_CONNECTABLE, - &hdev->dev_flags); - else - changed = test_and_set_bit(HCI_CONNECTABLE, - &hdev->dev_flags); - - if (changed) - mgmt_new_settings(hdev); - } + if (!err) + hci_update_scan_state(hdev, dr.dev_opt); break; case HCISETLINKPOL: @@ -2792,14 +2844,17 @@ int hci_get_dev_list(void __user *arg) read_lock(&hci_dev_list_lock); list_for_each_entry(hdev, &hci_dev_list, list) { - if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) - cancel_delayed_work(&hdev->power_off); + unsigned long flags = hdev->flags; - if (!test_bit(HCI_MGMT, &hdev->dev_flags)) - set_bit(HCI_PAIRABLE, &hdev->dev_flags); + /* When the auto-off is configured it means the transport + * is running, but in that case still indicate that the + * device is actually down. + */ + if (test_bit(HCI_AUTO_OFF, &hdev->dev_flags)) + flags &= ~BIT(HCI_UP); (dr + n)->dev_id = hdev->id; - (dr + n)->dev_opt = hdev->flags; + (dr + n)->dev_opt = flags; if (++n >= dev_num) break; @@ -2819,6 +2874,7 @@ int hci_get_dev_info(void __user *arg) { struct hci_dev *hdev; struct hci_dev_info di; + unsigned long flags; int err = 0; if (copy_from_user(&di, arg, sizeof(di))) @@ -2828,16 +2884,19 @@ int hci_get_dev_info(void __user *arg) if (!hdev) return -ENODEV; - if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) - cancel_delayed_work_sync(&hdev->power_off); - - if (!test_bit(HCI_MGMT, &hdev->dev_flags)) - set_bit(HCI_PAIRABLE, &hdev->dev_flags); + /* When the auto-off is configured it means the transport + * is running, but in that case still indicate that the + * device is actually down. + */ + if (test_bit(HCI_AUTO_OFF, &hdev->dev_flags)) + flags = hdev->flags & ~BIT(HCI_UP); + else + flags = hdev->flags; strcpy(di.name, hdev->name); di.bdaddr = hdev->bdaddr; di.type = (hdev->bus & 0x0f) | ((hdev->dev_type & 0x03) << 4); - di.flags = hdev->flags; + di.flags = flags; di.pkt_type = hdev->pkt_type; if (lmp_bredr_capable(hdev)) { di.acl_mtu = hdev->acl_mtu; @@ -3062,13 +3121,16 @@ static bool hci_persistent_key(struct hci_dev *hdev, struct hci_conn *conn, return false; } -static bool ltk_type_master(u8 type) +static u8 ltk_role(u8 type) { - return (type == SMP_LTK); + if (type == SMP_LTK) + return HCI_ROLE_MASTER; + + return HCI_ROLE_SLAVE; } struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, __le64 rand, - bool master) + u8 role) { struct smp_ltk *k; @@ -3076,7 +3138,7 @@ struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, __le64 rand, if (k->ediv != ediv || k->rand != rand) continue; - if (ltk_type_master(k->type) != master) + if (ltk_role(k->type) != role) continue; return k; @@ -3086,14 +3148,14 @@ struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, __le64 rand, } struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, - u8 addr_type, bool master) + u8 addr_type, u8 role) { struct smp_ltk *k; list_for_each_entry(k, &hdev->long_term_keys, list) if (addr_type == k->bdaddr_type && bacmp(bdaddr, &k->bdaddr) == 0 && - ltk_type_master(k->type) == master) + ltk_role(k->type) == role) return k; return NULL; @@ -3188,9 +3250,9 @@ struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand) { struct smp_ltk *key, *old_key; - bool master = ltk_type_master(type); + u8 role = ltk_role(type); - old_key = hci_find_ltk_by_addr(hdev, bdaddr, addr_type, master); + old_key = hci_find_ltk_by_addr(hdev, bdaddr, addr_type, role); if (old_key) key = old_key; else { @@ -3430,7 +3492,7 @@ int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type) if (hci_bdaddr_list_lookup(list, bdaddr, type)) return -EEXIST; - entry = kzalloc(sizeof(struct bdaddr_list), GFP_KERNEL); + entry = kzalloc(sizeof(*entry), GFP_KERNEL); if (!entry) return -ENOMEM; @@ -3835,7 +3897,7 @@ struct hci_dev *hci_alloc_dev(void) { struct hci_dev *hdev; - hdev = kzalloc(sizeof(struct hci_dev), GFP_KERNEL); + hdev = kzalloc(sizeof(*hdev), GFP_KERNEL); if (!hdev) return NULL; @@ -4390,6 +4452,11 @@ int hci_req_run(struct hci_request *req, hci_req_complete_t complete) return 0; } +bool hci_req_pending(struct hci_dev *hdev) +{ + return (hdev->req_status == HCI_REQ_PEND); +} + static struct sk_buff *hci_prepare_cmd(struct hci_dev *hdev, u16 opcode, u32 plen, const void *param) { @@ -5398,8 +5465,7 @@ void hci_update_background_scan(struct hci_dev *hdev) hci_req_init(&req, hdev); - if (!test_bit(HCI_CONNECTABLE, &hdev->dev_flags) && - list_empty(&hdev->pend_le_conns) && + if (list_empty(&hdev->pend_le_conns) && list_empty(&hdev->pend_le_reports)) { /* If there is no pending LE connections or devices * to be scanned for, we should stop the background diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index c8ae9ee..4c41774 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -101,12 +101,8 @@ static void hci_cc_role_discovery(struct hci_dev *hdev, struct sk_buff *skb) hci_dev_lock(hdev); conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle)); - if (conn) { - if (rp->role) - clear_bit(HCI_CONN_MASTER, &conn->flags); - else - set_bit(HCI_CONN_MASTER, &conn->flags); - } + if (conn) + conn->role = rp->role; hci_dev_unlock(hdev); } @@ -296,7 +292,6 @@ static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb) { __u8 status = *((__u8 *) skb->data); __u8 param; - int old_pscan, old_iscan; void *sent; BT_DBG("%s status 0x%2.2x", hdev->name, status); @@ -310,32 +305,19 @@ static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb) hci_dev_lock(hdev); if (status) { - mgmt_write_scan_failed(hdev, param, status); hdev->discov_timeout = 0; goto done; } - /* We need to ensure that we set this back on if someone changed - * the scan mode through a raw HCI socket. - */ - set_bit(HCI_BREDR_ENABLED, &hdev->dev_flags); - - old_pscan = test_and_clear_bit(HCI_PSCAN, &hdev->flags); - old_iscan = test_and_clear_bit(HCI_ISCAN, &hdev->flags); - - if (param & SCAN_INQUIRY) { + if (param & SCAN_INQUIRY) set_bit(HCI_ISCAN, &hdev->flags); - if (!old_iscan) - mgmt_discoverable(hdev, 1); - } else if (old_iscan) - mgmt_discoverable(hdev, 0); + else + clear_bit(HCI_ISCAN, &hdev->flags); - if (param & SCAN_PAGE) { + if (param & SCAN_PAGE) set_bit(HCI_PSCAN, &hdev->flags); - if (!old_pscan) - mgmt_connectable(hdev, 1); - } else if (old_pscan) - mgmt_connectable(hdev, 0); + else + clear_bit(HCI_ISCAN, &hdev->flags); done: hci_dev_unlock(hdev); @@ -1432,11 +1414,9 @@ static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status) } } else { if (!conn) { - conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr); - if (conn) { - conn->out = true; - set_bit(HCI_CONN_MASTER, &conn->flags); - } else + conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr, + HCI_ROLE_MASTER); + if (!conn) BT_ERR("No memory for new connection"); } } @@ -1665,6 +1645,8 @@ static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status) if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) { struct hci_cp_auth_requested auth_cp; + set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags); + auth_cp.handle = __cpu_to_le16(conn->handle); hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(auth_cp), &auth_cp); @@ -2149,18 +2131,17 @@ static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb) return; } - if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags)) { - if (hci_bdaddr_list_lookup(&hdev->blacklist, &ev->bdaddr, - BDADDR_BREDR)) { - hci_reject_conn(hdev, &ev->bdaddr); - return; - } - } else { - if (!hci_bdaddr_list_lookup(&hdev->whitelist, &ev->bdaddr, - BDADDR_BREDR)) { - hci_reject_conn(hdev, &ev->bdaddr); - return; - } + if (hci_bdaddr_list_lookup(&hdev->blacklist, &ev->bdaddr, + BDADDR_BREDR)) { + hci_reject_conn(hdev, &ev->bdaddr); + return; + } + + if (!test_bit(HCI_CONNECTABLE, &hdev->dev_flags) && + !hci_bdaddr_list_lookup(&hdev->whitelist, &ev->bdaddr, + BDADDR_BREDR)) { + hci_reject_conn(hdev, &ev->bdaddr); + return; } /* Connection accepted */ @@ -2174,7 +2155,8 @@ static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb) conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr); if (!conn) { - conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr); + conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr, + HCI_ROLE_SLAVE); if (!conn) { BT_ERR("No memory for new connection"); hci_dev_unlock(hdev); @@ -2407,6 +2389,9 @@ check_auth: if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) { struct hci_cp_auth_requested cp; + + set_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags); + cp.handle = __cpu_to_le16(conn->handle); hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp); } @@ -2938,12 +2923,8 @@ static void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb) conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr); if (conn) { - if (!ev->status) { - if (ev->role) - clear_bit(HCI_CONN_MASTER, &conn->flags); - else - set_bit(HCI_CONN_MASTER, &conn->flags); - } + if (!ev->status) + conn->role = ev->role; clear_bit(HCI_CONN_RSWITCH_PEND, &conn->flags); @@ -3137,10 +3118,11 @@ static void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb) hci_conn_drop(conn); } - if (!test_bit(HCI_PAIRABLE, &hdev->dev_flags)) + if (!test_bit(HCI_PAIRABLE, &hdev->dev_flags) && + !test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags)) { hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY, sizeof(ev->bdaddr), &ev->bdaddr); - else if (test_bit(HCI_MGMT, &hdev->dev_flags)) { + } else if (test_bit(HCI_MGMT, &hdev->dev_flags)) { u8 secure; if (conn->pending_sec_level == BT_SECURITY_HIGH) @@ -3666,7 +3648,11 @@ static void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb) if (!test_bit(HCI_MGMT, &hdev->dev_flags)) goto unlock; + /* Allow pairing if we're pairable, the initiators of the + * pairing or if the remote is not requesting bonding. + */ if (test_bit(HCI_PAIRABLE, &hdev->dev_flags) || + test_bit(HCI_CONN_AUTH_INITIATOR, &conn->flags) || (conn->remote_auth & ~0x01) == HCI_AT_NO_BONDING) { struct hci_cp_io_capability_reply cp; @@ -3678,18 +3664,14 @@ static void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb) /* If we are initiators, there is no remote information yet */ if (conn->remote_auth == 0xff) { - cp.authentication = conn->auth_type; - /* Request MITM protection if our IO caps allow it * except for the no-bonding case. - * conn->auth_type is not updated here since - * that might cause the user confirmation to be - * rejected in case the remote doesn't have the - * IO capabilities for MITM. */ if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT && - cp.authentication != HCI_AT_NO_BONDING) - cp.authentication |= 0x01; + conn->auth_type != HCI_AT_NO_BONDING) + conn->auth_type |= 0x01; + + cp.authentication = conn->auth_type; } else { conn->auth_type = hci_get_auth_req(conn); cp.authentication = conn->auth_type; @@ -3761,9 +3743,12 @@ static void hci_user_confirm_request_evt(struct hci_dev *hdev, rem_mitm = (conn->remote_auth & 0x01); /* If we require MITM but the remote device can't provide that - * (it has NoInputNoOutput) then reject the confirmation request + * (it has NoInputNoOutput) then reject the confirmation + * request. We check the security level here since it doesn't + * necessarily match conn->auth_type. */ - if (loc_mitm && conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) { + if (conn->pending_sec_level > BT_SECURITY_MEDIUM && + conn->remote_cap == HCI_IO_NO_INPUT_OUTPUT) { BT_DBG("Rejecting request: remote device can't provide MITM"); hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_NEG_REPLY, sizeof(ev->bdaddr), &ev->bdaddr); @@ -3777,9 +3762,11 @@ static void hci_user_confirm_request_evt(struct hci_dev *hdev, /* If we're not the initiators request authorization to * proceed from user space (mgmt_user_confirm with * confirm_hint set to 1). The exception is if neither - * side had MITM in which case we do auto-accept. + * side had MITM or if the local IO capability is + * NoInputNoOutput, in which case we do auto-accept */ if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && + conn->io_capability != HCI_IO_NO_INPUT_OUTPUT && (loc_mitm || rem_mitm)) { BT_DBG("Confirming auto-accept as acceptor"); confirm_hint = 1; @@ -3893,6 +3880,9 @@ static void hci_simple_pair_complete_evt(struct hci_dev *hdev, if (!conn) goto unlock; + /* Reset the authentication requirement to unknown */ + conn->remote_auth = 0xff; + /* To avoid duplicate auth_failed events to user space we check * the HCI_CONN_AUTH_PEND flag which will be set if we * initiated the authentication. A traditional auth_complete @@ -4123,7 +4113,7 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT); if (!conn) { - conn = hci_conn_add(hdev, LE_LINK, &ev->bdaddr); + conn = hci_conn_add(hdev, LE_LINK, &ev->bdaddr, ev->role); if (!conn) { BT_ERR("No memory for new connection"); goto unlock; @@ -4131,11 +4121,6 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) conn->dst_type = ev->bdaddr_type; - if (ev->role == LE_CONN_ROLE_MASTER) { - conn->out = true; - set_bit(HCI_CONN_MASTER, &conn->flags); - } - /* If we didn't have a hci_conn object previously * but we're in master role this must be something * initiated using a white list. Since white list based @@ -4202,14 +4187,14 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) else addr_type = BDADDR_LE_RANDOM; - /* Drop the connection if he device is blocked */ - if (hci_bdaddr_list_lookup(&hdev->blacklist, &conn->dst, addr_type)) { - hci_conn_drop(conn); + if (ev->status) { + hci_le_conn_failed(conn, ev->status); goto unlock; } - if (ev->status) { - hci_le_conn_failed(conn, ev->status); + /* Drop the connection if the device is blocked */ + if (hci_bdaddr_list_lookup(&hdev->blacklist, &conn->dst, addr_type)) { + hci_conn_drop(conn); goto unlock; } @@ -4275,6 +4260,12 @@ static void check_pending_le_conn(struct hci_dev *hdev, bdaddr_t *addr, if (hci_bdaddr_list_lookup(&hdev->blacklist, addr, addr_type)) return; + /* Most controller will fail if we try to create new connections + * while we have an existing one in slave role. + */ + if (hdev->conn_hash.le_num_slave > 0) + return; + /* If we're connectable, always connect any ADV_DIRECT_IND event */ if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags) && adv_type == LE_ADV_DIRECT_IND) @@ -4287,9 +4278,8 @@ static void check_pending_le_conn(struct hci_dev *hdev, bdaddr_t *addr, return; connect: - /* Request connection in master = true role */ conn = hci_connect_le(hdev, addr, addr_type, BT_SECURITY_LOW, - HCI_LE_AUTOCONN_TIMEOUT, true); + HCI_LE_AUTOCONN_TIMEOUT, HCI_ROLE_MASTER); if (!IS_ERR(conn)) return; @@ -4329,14 +4319,11 @@ static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr, * device found events. */ if (hdev->le_scan_type == LE_SCAN_PASSIVE) { - struct hci_conn_params *param; - if (type == LE_ADV_DIRECT_IND) return; - param = hci_pend_le_action_lookup(&hdev->pend_le_reports, - bdaddr, bdaddr_type); - if (!param) + if (!hci_pend_le_action_lookup(&hdev->pend_le_reports, + bdaddr, bdaddr_type)) return; if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND) @@ -4470,7 +4457,7 @@ static void hci_le_ltk_request_evt(struct hci_dev *hdev, struct sk_buff *skb) if (conn == NULL) goto not_found; - ltk = hci_find_ltk(hdev, ev->ediv, ev->rand, conn->out); + ltk = hci_find_ltk(hdev, ev->ediv, ev->rand, conn->role); if (ltk == NULL) goto not_found; @@ -4545,7 +4532,7 @@ static void hci_le_remote_conn_param_req_evt(struct hci_dev *hdev, return send_conn_param_neg_reply(hdev, handle, HCI_ERROR_INVALID_LL_PARAMS); - if (test_bit(HCI_CONN_MASTER, &hcon->flags)) { + if (hcon->role == HCI_ROLE_MASTER) { struct hci_conn_params *params; u8 store_hint; @@ -4638,7 +4625,7 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb) /* Received events are (currently) only needed when a request is * ongoing so avoid unnecessary memory allocation. */ - if (hdev->req_status == HCI_REQ_PEND) { + if (hci_req_pending(hdev)) { kfree_skb(hdev->recv_evt); hdev->recv_evt = skb_clone(skb, GFP_KERNEL); } diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index c64728d..115f149 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -35,13 +35,32 @@ static atomic_t monitor_promisc = ATOMIC_INIT(0); /* ----- HCI socket interface ----- */ +/* Socket info */ +#define hci_pi(sk) ((struct hci_pinfo *) sk) + +struct hci_pinfo { + struct bt_sock bt; + struct hci_dev *hdev; + struct hci_filter filter; + __u32 cmsg_mask; + unsigned short channel; +}; + static inline int hci_test_bit(int nr, void *addr) { return *((__u32 *) addr + (nr >> 5)) & ((__u32) 1 << (nr & 31)); } /* Security filter */ -static struct hci_sec_filter hci_sec_filter = { +#define HCI_SFLT_MAX_OGF 5 + +struct hci_sec_filter { + __u32 type_mask; + __u32 event_mask[2]; + __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; +}; + +static const struct hci_sec_filter hci_sec_filter = { /* Packet types */ 0x10, /* Events */ diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 8680aae..46547b9 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -46,7 +46,7 @@ bool disable_ertm; static u32 l2cap_feat_mask = L2CAP_FEAT_FIXED_CHAN | L2CAP_FEAT_UCD; -static u8 l2cap_fixed_chan[8] = { L2CAP_FC_L2CAP | L2CAP_FC_CONNLESS, }; +static u8 l2cap_fixed_chan[8] = { L2CAP_FC_SIG_BREDR | L2CAP_FC_CONNLESS, }; static LIST_HEAD(chan_list); static DEFINE_RWLOCK(chan_list_lock); @@ -775,7 +775,7 @@ static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan) } /* Service level security */ -int l2cap_chan_check_security(struct l2cap_chan *chan) +int l2cap_chan_check_security(struct l2cap_chan *chan, bool initiator) { struct l2cap_conn *conn = chan->conn; __u8 auth_type; @@ -785,7 +785,8 @@ int l2cap_chan_check_security(struct l2cap_chan *chan) auth_type = l2cap_get_auth_type(chan); - return hci_conn_security(conn->hcon, chan->sec_level, auth_type); + return hci_conn_security(conn->hcon, chan->sec_level, auth_type, + initiator); } static u8 l2cap_get_ident(struct l2cap_conn *conn) @@ -798,14 +799,14 @@ static u8 l2cap_get_ident(struct l2cap_conn *conn) * 200 - 254 are used by utilities like l2ping, etc. */ - spin_lock(&conn->lock); + mutex_lock(&conn->ident_lock); if (++conn->tx_ident > 128) conn->tx_ident = 1; id = conn->tx_ident; - spin_unlock(&conn->lock); + mutex_unlock(&conn->ident_lock); return id; } @@ -1278,7 +1279,7 @@ static void l2cap_do_start(struct l2cap_chan *chan) if (!(conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE)) return; - if (l2cap_chan_check_security(chan) && + if (l2cap_chan_check_security(chan, true) && __l2cap_no_conn_pending(chan)) { l2cap_start_connection(chan); } @@ -1357,7 +1358,7 @@ static void l2cap_conn_start(struct l2cap_conn *conn) } if (chan->state == BT_CONNECT) { - if (!l2cap_chan_check_security(chan) || + if (!l2cap_chan_check_security(chan, true) || !__l2cap_no_conn_pending(chan)) { l2cap_chan_unlock(chan); continue; @@ -1379,7 +1380,7 @@ static void l2cap_conn_start(struct l2cap_conn *conn) rsp.scid = cpu_to_le16(chan->dcid); rsp.dcid = cpu_to_le16(chan->scid); - if (l2cap_chan_check_security(chan)) { + if (l2cap_chan_check_security(chan, false)) { if (test_bit(FLAG_DEFER_SETUP, &chan->flags)) { rsp.result = cpu_to_le16(L2CAP_CR_PEND); rsp.status = cpu_to_le16(L2CAP_CS_AUTHOR_PEND); @@ -1487,7 +1488,7 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn) * been configured for this connection. If not, then trigger * the connection update procedure. */ - if (!test_bit(HCI_CONN_MASTER, &hcon->flags) && + if (hcon->role == HCI_ROLE_SLAVE && (hcon->le_conn_interval < hcon->le_conn_min_interval || hcon->le_conn_interval > hcon->le_conn_max_interval)) { struct l2cap_conn_param_update_req req; @@ -3849,7 +3850,7 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn, chan->ident = cmd->ident; if (conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE) { - if (l2cap_chan_check_security(chan)) { + if (l2cap_chan_check_security(chan, false)) { if (test_bit(FLAG_DEFER_SETUP, &chan->flags)) { l2cap_state_change(chan, BT_CONNECT2); result = L2CAP_CR_PEND; @@ -5227,7 +5228,7 @@ static inline int l2cap_conn_param_update_req(struct l2cap_conn *conn, u16 min, max, latency, to_multiplier; int err; - if (!test_bit(HCI_CONN_MASTER, &hcon->flags)) + if (hcon->role != HCI_ROLE_MASTER) return -EINVAL; if (cmd_len != sizeof(struct l2cap_conn_param_update_req)) @@ -6984,7 +6985,7 @@ static struct l2cap_conn *l2cap_conn_add(struct hci_conn *hcon) if (!hchan) return NULL; - conn = kzalloc(sizeof(struct l2cap_conn), GFP_KERNEL); + conn = kzalloc(sizeof(*conn), GFP_KERNEL); if (!conn) { hci_chan_del(hchan); return NULL; @@ -7016,7 +7017,7 @@ static struct l2cap_conn *l2cap_conn_add(struct hci_conn *hcon) conn->hs_enabled = test_bit(HCI_HS_ENABLED, &hcon->hdev->dev_flags); - spin_lock_init(&conn->lock); + mutex_init(&conn->ident_lock); mutex_init(&conn->chan_lock); INIT_LIST_HEAD(&conn->chan_l); @@ -7093,7 +7094,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, break; /* fall through */ default: - err = -ENOTSUPP; + err = -EOPNOTSUPP; goto done; } @@ -7128,7 +7129,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, chan->dcid = cid; if (bdaddr_type_is_le(dst_type)) { - bool master; + u8 role; /* Convert from L2CAP channel address type to HCI address type */ @@ -7137,10 +7138,13 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, else dst_type = ADDR_LE_DEV_RANDOM; - master = !test_bit(HCI_ADVERTISING, &hdev->dev_flags); + if (test_bit(HCI_ADVERTISING, &hdev->dev_flags)) + role = HCI_ROLE_SLAVE; + else + role = HCI_ROLE_MASTER; hcon = hci_connect_le(hdev, dst, dst_type, chan->sec_level, - HCI_LE_CONN_TIMEOUT, master); + HCI_LE_CONN_TIMEOUT, role); } else { u8 auth_type = l2cap_get_auth_type(chan); hcon = hci_connect_acl(hdev, dst, chan->sec_level, auth_type); @@ -7188,7 +7192,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, if (hcon->state == BT_CONNECTED) { if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) { __clear_chan_timer(chan); - if (l2cap_chan_check_security(chan)) + if (l2cap_chan_check_security(chan, true)) l2cap_state_change(chan, BT_CONNECTED); } else l2cap_do_start(chan); diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index 9bb4d1b..1884f72 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -279,7 +279,7 @@ static int l2cap_sock_listen(struct socket *sock, int backlog) break; /* fall through */ default: - err = -ENOTSUPP; + err = -EOPNOTSUPP; goto done; } @@ -797,7 +797,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, } else if ((sk->sk_state == BT_CONNECT2 && test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) || sk->sk_state == BT_CONNECTED) { - if (!l2cap_chan_check_security(chan)) + if (!l2cap_chan_check_security(chan, true)) set_bit(BT_SK_SUSPEND, &bt_sk(sk)->flags); else sk->sk_state_change(sk); @@ -1112,7 +1112,8 @@ static int l2cap_sock_shutdown(struct socket *sock, int how) l2cap_chan_close(chan, 0); lock_sock(sk); - if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime) + if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime && + !(current->flags & PF_EXITING)) err = bt_sock_wait_state(sk, BT_CLOSED, sk->sk_lingertime); } diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 91b1f92..1906683 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -906,6 +906,16 @@ static void update_adv_data(struct hci_request *req) hci_req_add(req, HCI_OP_LE_SET_ADV_DATA, sizeof(cp), &cp); } +int mgmt_update_adv_data(struct hci_dev *hdev) +{ + struct hci_request req; + + hci_req_init(&req, hdev); + update_adv_data(&req); + + return hci_req_run(&req, NULL); +} + static void create_eir(struct hci_dev *hdev, u8 *data) { u8 *ptr = data; @@ -1743,7 +1753,7 @@ static void set_connectable_complete(struct hci_dev *hdev, u8 status) { struct pending_cmd *cmd; struct mgmt_mode *cp; - bool changed; + bool conn_changed, discov_changed; BT_DBG("status 0x%02x", status); @@ -1760,15 +1770,23 @@ static void set_connectable_complete(struct hci_dev *hdev, u8 status) } cp = cmd->param; - if (cp->val) - changed = !test_and_set_bit(HCI_CONNECTABLE, &hdev->dev_flags); - else - changed = test_and_clear_bit(HCI_CONNECTABLE, &hdev->dev_flags); + if (cp->val) { + conn_changed = !test_and_set_bit(HCI_CONNECTABLE, + &hdev->dev_flags); + discov_changed = false; + } else { + conn_changed = test_and_clear_bit(HCI_CONNECTABLE, + &hdev->dev_flags); + discov_changed = test_and_clear_bit(HCI_DISCOVERABLE, + &hdev->dev_flags); + } send_settings_rsp(cmd->sk, MGMT_OP_SET_CONNECTABLE, hdev); - if (changed) { + if (conn_changed || discov_changed) { new_settings(hdev, cmd->sk); + if (discov_changed) + mgmt_update_adv_data(hdev); hci_update_background_scan(hdev); } @@ -1882,8 +1900,8 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data, if (cp->val || test_bit(HCI_FAST_CONNECTABLE, &hdev->dev_flags)) write_fast_connectable(&req, false); - if (test_bit(HCI_ADVERTISING, &hdev->dev_flags) && - !test_bit(HCI_LE_ADV, &hdev->dev_flags)) + /* Update the advertising parameters if necessary */ + if (test_bit(HCI_ADVERTISING, &hdev->dev_flags)) enable_advertising(&req); err = hci_req_run(&req, set_connectable_complete); @@ -3136,9 +3154,9 @@ static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data, */ hci_conn_params_add(hdev, &cp->addr.bdaddr, addr_type); - /* Request a connection with master = true role */ conn = hci_connect_le(hdev, &cp->addr.bdaddr, addr_type, - sec_level, HCI_LE_CONN_TIMEOUT, true); + sec_level, HCI_LE_CONN_TIMEOUT, + HCI_ROLE_MASTER); } if (IS_ERR(conn)) { @@ -3184,7 +3202,7 @@ static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data, cmd->user_data = conn; if (conn->state == BT_CONNECTED && - hci_conn_security(conn, sec_level, auth_type)) + hci_conn_security(conn, sec_level, auth_type, true)) pairing_complete(cmd, 0); err = 0; @@ -6031,88 +6049,6 @@ void mgmt_discoverable_timeout(struct hci_dev *hdev) hci_dev_unlock(hdev); } -void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable) -{ - bool changed; - - /* Nothing needed here if there's a pending command since that - * commands request completion callback takes care of everything - * necessary. - */ - if (mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev)) - return; - - /* Powering off may clear the scan mode - don't let that interfere */ - if (!discoverable && mgmt_pending_find(MGMT_OP_SET_POWERED, hdev)) - return; - - if (discoverable) { - changed = !test_and_set_bit(HCI_DISCOVERABLE, &hdev->dev_flags); - } else { - clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags); - changed = test_and_clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags); - } - - if (changed) { - struct hci_request req; - - /* In case this change in discoverable was triggered by - * a disabling of connectable there could be a need to - * update the advertising flags. - */ - hci_req_init(&req, hdev); - update_adv_data(&req); - hci_req_run(&req, NULL); - - new_settings(hdev, NULL); - } -} - -void mgmt_connectable(struct hci_dev *hdev, u8 connectable) -{ - bool changed; - - /* Nothing needed here if there's a pending command since that - * commands request completion callback takes care of everything - * necessary. - */ - if (mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) - return; - - /* Powering off may clear the scan mode - don't let that interfere */ - if (!connectable && mgmt_pending_find(MGMT_OP_SET_POWERED, hdev)) - return; - - /* If something else than mgmt changed the page scan state we - * can't differentiate this from a change triggered by adding - * the first element to the whitelist. Therefore, avoid - * incorrectly setting HCI_CONNECTABLE. - */ - if (connectable && !list_empty(&hdev->whitelist)) - return; - - if (connectable) - changed = !test_and_set_bit(HCI_CONNECTABLE, &hdev->dev_flags); - else - changed = test_and_clear_bit(HCI_CONNECTABLE, &hdev->dev_flags); - - if (changed) - new_settings(hdev, NULL); -} - -void mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status) -{ - u8 mgmt_err = mgmt_status(status); - - if (scan & SCAN_PAGE) - mgmt_pending_foreach(MGMT_OP_SET_CONNECTABLE, hdev, - cmd_status_rsp, &mgmt_err); - - if (scan & SCAN_INQUIRY) - mgmt_pending_foreach(MGMT_OP_SET_DISCOVERABLE, hdev, - cmd_status_rsp, &mgmt_err); -} - void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, bool persistent) { diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c index 754b6fe..a0690a8 100644 --- a/net/bluetooth/rfcomm/core.c +++ b/net/bluetooth/rfcomm/core.c @@ -227,7 +227,8 @@ static int rfcomm_check_security(struct rfcomm_dlc *d) break; } - return hci_conn_security(conn->hcon, d->sec_level, auth_type); + return hci_conn_security(conn->hcon, d->sec_level, auth_type, + d->out); } static void rfcomm_session_timeout(unsigned long arg) diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c index c603a5e..8bbbb5e 100644 --- a/net/bluetooth/rfcomm/sock.c +++ b/net/bluetooth/rfcomm/sock.c @@ -918,7 +918,8 @@ static int rfcomm_sock_shutdown(struct socket *sock, int how) sk->sk_shutdown = SHUTDOWN_MASK; __rfcomm_sock_close(sk); - if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime) + if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime && + !(current->flags & PF_EXITING)) err = bt_sock_wait_state(sk, BT_CLOSED, sk->sk_lingertime); } release_sock(sk); diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index c06dbd3..7ee9e4a 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -40,13 +40,38 @@ static struct bt_sock_list sco_sk_list = { .lock = __RW_LOCK_UNLOCKED(sco_sk_list.lock) }; -static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent); -static void sco_chan_del(struct sock *sk, int err); +/* ---- SCO connections ---- */ +struct sco_conn { + struct hci_conn *hcon; + + spinlock_t lock; + struct sock *sk; + + unsigned int mtu; +}; + +#define sco_conn_lock(c) spin_lock(&c->lock); +#define sco_conn_unlock(c) spin_unlock(&c->lock); static void sco_sock_close(struct sock *sk); static void sco_sock_kill(struct sock *sk); +/* ----- SCO socket info ----- */ +#define sco_pi(sk) ((struct sco_pinfo *) sk) + +struct sco_pinfo { + struct bt_sock bt; + bdaddr_t src; + bdaddr_t dst; + __u32 flags; + __u16 setting; + struct sco_conn *conn; +}; + /* ---- SCO timers ---- */ +#define SCO_CONN_TIMEOUT (HZ * 40) +#define SCO_DISCONN_TIMEOUT (HZ * 2) + static void sco_sock_timeout(unsigned long arg) { struct sock *sk = (struct sock *) arg; @@ -102,13 +127,31 @@ static struct sco_conn *sco_conn_add(struct hci_conn *hcon) return conn; } -static struct sock *sco_chan_get(struct sco_conn *conn) +/* Delete channel. + * Must be called on the locked socket. */ +static void sco_chan_del(struct sock *sk, int err) { - struct sock *sk = NULL; - sco_conn_lock(conn); - sk = conn->sk; - sco_conn_unlock(conn); - return sk; + struct sco_conn *conn; + + conn = sco_pi(sk)->conn; + + BT_DBG("sk %p, conn %p, err %d", sk, conn, err); + + if (conn) { + sco_conn_lock(conn); + conn->sk = NULL; + sco_pi(sk)->conn = NULL; + sco_conn_unlock(conn); + + if (conn->hcon) + hci_conn_drop(conn->hcon); + } + + sk->sk_state = BT_CLOSED; + sk->sk_err = err; + sk->sk_state_change(sk); + + sock_set_flag(sk, SOCK_ZAPPED); } static int sco_conn_del(struct hci_conn *hcon, int err) @@ -122,7 +165,10 @@ static int sco_conn_del(struct hci_conn *hcon, int err) BT_DBG("hcon %p conn %p, err %d", hcon, conn, err); /* Kill socket */ - sk = sco_chan_get(conn); + sco_conn_lock(conn); + sk = conn->sk; + sco_conn_unlock(conn); + if (sk) { bh_lock_sock(sk); sco_sock_clear_timer(sk); @@ -136,6 +182,17 @@ static int sco_conn_del(struct hci_conn *hcon, int err) return 0; } +static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent) +{ + BT_DBG("conn %p", conn); + + sco_pi(sk)->conn = conn; + conn->sk = sk; + + if (parent) + bt_accept_enqueue(parent, sk); +} + static int sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent) { @@ -240,7 +297,11 @@ static int sco_send_frame(struct sock *sk, struct msghdr *msg, int len) static void sco_recv_frame(struct sco_conn *conn, struct sk_buff *skb) { - struct sock *sk = sco_chan_get(conn); + struct sock *sk; + + sco_conn_lock(conn); + sk = conn->sk; + sco_conn_unlock(conn); if (!sk) goto drop; @@ -909,7 +970,8 @@ static int sco_sock_shutdown(struct socket *sock, int how) sco_sock_clear_timer(sk); __sco_sock_close(sk); - if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime) + if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime && + !(current->flags & PF_EXITING)) err = bt_sock_wait_state(sk, BT_CLOSED, sk->sk_lingertime); } @@ -929,7 +991,8 @@ static int sco_sock_release(struct socket *sock) sco_sock_close(sk); - if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime) { + if (sock_flag(sk, SOCK_LINGER) && sk->sk_lingertime && + !(current->flags & PF_EXITING)) { lock_sock(sk); err = bt_sock_wait_state(sk, BT_CLOSED, sk->sk_lingertime); release_sock(sk); @@ -940,44 +1003,6 @@ static int sco_sock_release(struct socket *sock) return err; } -static void __sco_chan_add(struct sco_conn *conn, struct sock *sk, struct sock *parent) -{ - BT_DBG("conn %p", conn); - - sco_pi(sk)->conn = conn; - conn->sk = sk; - - if (parent) - bt_accept_enqueue(parent, sk); -} - -/* Delete channel. - * Must be called on the locked socket. */ -static void sco_chan_del(struct sock *sk, int err) -{ - struct sco_conn *conn; - - conn = sco_pi(sk)->conn; - - BT_DBG("sk %p, conn %p, err %d", sk, conn, err); - - if (conn) { - sco_conn_lock(conn); - conn->sk = NULL; - sco_pi(sk)->conn = NULL; - sco_conn_unlock(conn); - - if (conn->hcon) - hci_conn_drop(conn->hcon); - } - - sk->sk_state = BT_CLOSED; - sk->sk_err = err; - sk->sk_state_change(sk); - - sock_set_flag(sk, SOCK_ZAPPED); -} - static void sco_conn_ready(struct sco_conn *conn) { struct sock *parent; diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index 55c41de..e49c83d 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -391,10 +391,12 @@ static const u8 gen_method[5][5] = { static u8 get_auth_method(struct smp_chan *smp, u8 local_io, u8 remote_io) { - /* If either side has unknown io_caps, use JUST WORKS */ + /* If either side has unknown io_caps, use JUST_CFM (which gets + * converted later to JUST_WORKS if we're initiators. + */ if (local_io > SMP_IO_KEYBOARD_DISPLAY || remote_io > SMP_IO_KEYBOARD_DISPLAY) - return JUST_WORKS; + return JUST_CFM; return gen_method[remote_io][local_io]; } @@ -414,21 +416,25 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth, BT_DBG("tk_request: auth:%d lcl:%d rem:%d", auth, local_io, remote_io); - /* If neither side wants MITM, use JUST WORKS */ - /* Otherwise, look up method from the table */ + /* If neither side wants MITM, either "just" confirm an incoming + * request or use just-works for outgoing ones. The JUST_CFM + * will be converted to JUST_WORKS if necessary later in this + * function. If either side has MITM look up the method from the + * table. + */ if (!(auth & SMP_AUTH_MITM)) - method = JUST_WORKS; + method = JUST_CFM; else method = get_auth_method(smp, local_io, remote_io); - /* If not bonding, don't ask user to confirm a Zero TK */ - if (!(auth & SMP_AUTH_BONDING) && method == JUST_CFM) - method = JUST_WORKS; - /* Don't confirm locally initiated pairing attempts */ if (method == JUST_CFM && test_bit(SMP_FLAG_INITIATOR, &smp->flags)) method = JUST_WORKS; + /* Don't bother user space with no IO capabilities */ + if (method == JUST_CFM && hcon->io_capability == HCI_IO_NO_INPUT_OUTPUT) + method = JUST_WORKS; + /* If Just Works, Continue with Zero TK */ if (method == JUST_WORKS) { set_bit(SMP_FLAG_TK_VALID, &smp->flags); @@ -443,7 +449,7 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth, * Confirms and the slave Enters the passkey. */ if (method == OVERLAP) { - if (test_bit(HCI_CONN_MASTER, &hcon->flags)) + if (hcon->role == HCI_ROLE_MASTER) method = CFM_PASSKEY; else method = REQ_PASSKEY; @@ -674,6 +680,7 @@ int smp_user_confirm_reply(struct hci_conn *hcon, u16 mgmt_op, __le32 passkey) static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb) { struct smp_cmd_pairing rsp, *req = (void *) skb->data; + struct hci_dev *hdev = conn->hcon->hdev; struct smp_chan *smp; u8 key_size, auth, sec_level; int ret; @@ -683,7 +690,7 @@ static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb) if (skb->len < sizeof(*req)) return SMP_INVALID_PARAMS; - if (test_bit(HCI_CONN_MASTER, &conn->hcon->flags)) + if (conn->hcon->role != HCI_ROLE_SLAVE) return SMP_CMD_NOTSUPP; if (!test_and_set_bit(HCI_CONN_LE_SMP_PEND, &conn->hcon->flags)) @@ -694,6 +701,10 @@ static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb) if (!smp) return SMP_UNSPECIFIED; + if (!test_bit(HCI_PAIRABLE, &hdev->dev_flags) && + (req->auth_req & SMP_AUTH_BONDING)) + return SMP_PAIRING_NOTSUPP; + smp->preq[0] = SMP_CMD_PAIRING_REQ; memcpy(&smp->preq[1], req, sizeof(*req)); skb_pull(skb, sizeof(*req)); @@ -733,8 +744,6 @@ static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb) if (ret) return SMP_UNSPECIFIED; - clear_bit(SMP_FLAG_INITIATOR, &smp->flags); - return 0; } @@ -750,7 +759,7 @@ static u8 smp_cmd_pairing_rsp(struct l2cap_conn *conn, struct sk_buff *skb) if (skb->len < sizeof(*rsp)) return SMP_INVALID_PARAMS; - if (!test_bit(HCI_CONN_MASTER, &conn->hcon->flags)) + if (conn->hcon->role != HCI_ROLE_MASTER) return SMP_CMD_NOTSUPP; skb_pull(skb, sizeof(*rsp)); @@ -844,7 +853,7 @@ static bool smp_ltk_encrypt(struct l2cap_conn *conn, u8 sec_level) struct hci_conn *hcon = conn->hcon; key = hci_find_ltk_by_addr(hcon->hdev, &hcon->dst, hcon->dst_type, - hcon->out); + hcon->role); if (!key) return false; @@ -871,9 +880,12 @@ bool smp_sufficient_security(struct hci_conn *hcon, u8 sec_level) /* If we're encrypted with an STK always claim insufficient * security. This way we allow the connection to be re-encrypted * with an LTK, even if the LTK provides the same level of - * security. + * security. Only exception is if we don't have an LTK (e.g. + * because of key distribution bits). */ - if (test_bit(HCI_CONN_STK_ENCRYPT, &hcon->flags)) + if (test_bit(HCI_CONN_STK_ENCRYPT, &hcon->flags) && + hci_find_ltk_by_addr(hcon->hdev, &hcon->dst, hcon->dst_type, + hcon->role)) return false; if (hcon->sec_level >= sec_level) @@ -895,7 +907,7 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb) if (skb->len < sizeof(*rp)) return SMP_INVALID_PARAMS; - if (!test_bit(HCI_CONN_MASTER, &conn->hcon->flags)) + if (hcon->role != HCI_ROLE_MASTER) return SMP_CMD_NOTSUPP; sec_level = authreq_to_seclevel(rp->auth_req); @@ -911,6 +923,10 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb) if (test_and_set_bit(HCI_CONN_LE_SMP_PEND, &hcon->flags)) return 0; + if (!test_bit(HCI_PAIRABLE, &hcon->hdev->dev_flags) && + (rp->auth_req & SMP_AUTH_BONDING)) + return SMP_PAIRING_NOTSUPP; + smp = smp_chan_create(conn); if (!smp) return SMP_UNSPECIFIED; @@ -925,8 +941,6 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb) smp_send_cmd(conn, SMP_CMD_PAIRING_REQ, sizeof(cp), &cp); - clear_bit(SMP_FLAG_INITIATOR, &smp->flags); - return 0; } @@ -951,7 +965,7 @@ int smp_conn_security(struct hci_conn *hcon, __u8 sec_level) if (sec_level > hcon->pending_sec_level) hcon->pending_sec_level = sec_level; - if (test_bit(HCI_CONN_MASTER, &hcon->flags)) + if (hcon->role == HCI_ROLE_MASTER) if (smp_ltk_encrypt(conn, hcon->pending_sec_level)) return 0; @@ -971,7 +985,7 @@ int smp_conn_security(struct hci_conn *hcon, __u8 sec_level) hcon->pending_sec_level > BT_SECURITY_MEDIUM) authreq |= SMP_AUTH_MITM; - if (test_bit(HCI_CONN_MASTER, &hcon->flags)) { + if (hcon->role == HCI_ROLE_MASTER) { struct smp_cmd_pairing cp; build_pairing_cmd(conn, &cp, NULL, authreq); @@ -1175,7 +1189,7 @@ int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb) } if (!test_bit(HCI_LE_ENABLED, &hcon->hdev->dev_flags)) { - err = -ENOTSUPP; + err = -EOPNOTSUPP; reason = SMP_PAIRING_NOTSUPP; goto done; } @@ -1193,7 +1207,7 @@ int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb) !conn->smp_chan) { BT_ERR("Unexpected SMP command 0x%02x. Disconnecting.", code); kfree_skb(skb); - return -ENOTSUPP; + return -EOPNOTSUPP; } switch (code) { diff --git a/net/ieee802154/Kconfig b/net/ieee802154/Kconfig index 8af1330..c0d4154 100644 --- a/net/ieee802154/Kconfig +++ b/net/ieee802154/Kconfig @@ -12,13 +12,6 @@ config IEEE802154 config IEEE802154_6LOWPAN tristate "6lowpan support over IEEE 802.15.4" - depends on IEEE802154 && IPV6 - select 6LOWPAN_IPHC + depends on IEEE802154 && 6LOWPAN ---help--- IPv6 compression over IEEE 802.15.4. - -config 6LOWPAN_IPHC - tristate - ---help--- - 6lowpan compression code which is shared between IEEE 802.15.4 and Bluetooth - stacks. diff --git a/net/ieee802154/Makefile b/net/ieee802154/Makefile index bf1b514..3914b1e 100644 --- a/net/ieee802154/Makefile +++ b/net/ieee802154/Makefile @@ -1,8 +1,7 @@ obj-$(CONFIG_IEEE802154) += ieee802154.o af_802154.o -obj-$(CONFIG_IEEE802154_6LOWPAN) += 6lowpan.o -obj-$(CONFIG_6LOWPAN_IPHC) += 6lowpan_iphc.o +obj-$(CONFIG_IEEE802154_6LOWPAN) += ieee802154_6lowpan.o -6lowpan-y := 6lowpan_rtnl.o reassembly.o +ieee802154_6lowpan-y := 6lowpan_rtnl.o reassembly.o ieee802154-y := netlink.o nl-mac.o nl-phy.o nl_policy.o wpan-class.o \ header_ops.o af_802154-y := af_ieee802154.o raw.o dgram.o diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c index 31bf258..f0e84bc 100644 --- a/net/mac80211/agg-rx.c +++ b/net/mac80211/agg-rx.c @@ -52,7 +52,7 @@ static void ieee80211_free_tid_rx(struct rcu_head *h) del_timer_sync(&tid_rx->reorder_timer); for (i = 0; i < tid_rx->buf_size; i++) - dev_kfree_skb(tid_rx->reorder_buf[i]); + __skb_queue_purge(&tid_rx->reorder_buf[i]); kfree(tid_rx->reorder_buf); kfree(tid_rx->reorder_time); kfree(tid_rx); @@ -224,28 +224,15 @@ static void ieee80211_send_addba_resp(struct ieee80211_sub_if_data *sdata, u8 *d ieee80211_tx_skb(sdata, skb); } -void ieee80211_process_addba_request(struct ieee80211_local *local, - struct sta_info *sta, - struct ieee80211_mgmt *mgmt, - size_t len) +void __ieee80211_start_rx_ba_session(struct sta_info *sta, + u8 dialog_token, u16 timeout, + u16 start_seq_num, u16 ba_policy, u16 tid, + u16 buf_size, bool tx) { + struct ieee80211_local *local = sta->sdata->local; struct tid_ampdu_rx *tid_agg_rx; - u16 capab, tid, timeout, ba_policy, buf_size, start_seq_num, status; - u8 dialog_token; - int ret = -EOPNOTSUPP; - - /* extract session parameters from addba request frame */ - dialog_token = mgmt->u.action.u.addba_req.dialog_token; - timeout = le16_to_cpu(mgmt->u.action.u.addba_req.timeout); - start_seq_num = - le16_to_cpu(mgmt->u.action.u.addba_req.start_seq_num) >> 4; - - capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab); - ba_policy = (capab & IEEE80211_ADDBA_PARAM_POLICY_MASK) >> 1; - tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2; - buf_size = (capab & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) >> 6; - - status = WLAN_STATUS_REQUEST_DECLINED; + int i, ret = -EOPNOTSUPP; + u16 status = WLAN_STATUS_REQUEST_DECLINED; if (test_sta_flag(sta, WLAN_STA_BLOCK_BA)) { ht_dbg(sta->sdata, @@ -264,7 +251,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, status = WLAN_STATUS_INVALID_QOS_PARAM; ht_dbg_ratelimited(sta->sdata, "AddBA Req with bad params from %pM on tid %u. policy %d, buffer size %d\n", - mgmt->sa, tid, ba_policy, buf_size); + sta->sta.addr, tid, ba_policy, buf_size); goto end_no_lock; } /* determine default buffer size */ @@ -281,7 +268,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, if (sta->ampdu_mlme.tid_rx[tid]) { ht_dbg_ratelimited(sta->sdata, "unexpected AddBA Req from %pM on tid %u\n", - mgmt->sa, tid); + sta->sta.addr, tid); /* delete existing Rx BA session on the same tid */ ___ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT, @@ -308,7 +295,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, /* prepare reordering buffer */ tid_agg_rx->reorder_buf = - kcalloc(buf_size, sizeof(struct sk_buff *), GFP_KERNEL); + kcalloc(buf_size, sizeof(struct sk_buff_head), GFP_KERNEL); tid_agg_rx->reorder_time = kcalloc(buf_size, sizeof(unsigned long), GFP_KERNEL); if (!tid_agg_rx->reorder_buf || !tid_agg_rx->reorder_time) { @@ -318,6 +305,9 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, goto end; } + for (i = 0; i < buf_size; i++) + __skb_queue_head_init(&tid_agg_rx->reorder_buf[i]); + ret = drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_RX_START, &sta->sta, tid, &start_seq_num, 0); ht_dbg(sta->sdata, "Rx A-MPDU request on %pM tid %d result %d\n", @@ -350,6 +340,74 @@ end: mutex_unlock(&sta->ampdu_mlme.mtx); end_no_lock: - ieee80211_send_addba_resp(sta->sdata, sta->sta.addr, tid, - dialog_token, status, 1, buf_size, timeout); + if (tx) + ieee80211_send_addba_resp(sta->sdata, sta->sta.addr, tid, + dialog_token, status, 1, buf_size, + timeout); +} + +void ieee80211_process_addba_request(struct ieee80211_local *local, + struct sta_info *sta, + struct ieee80211_mgmt *mgmt, + size_t len) +{ + u16 capab, tid, timeout, ba_policy, buf_size, start_seq_num; + u8 dialog_token; + + /* extract session parameters from addba request frame */ + dialog_token = mgmt->u.action.u.addba_req.dialog_token; + timeout = le16_to_cpu(mgmt->u.action.u.addba_req.timeout); + start_seq_num = + le16_to_cpu(mgmt->u.action.u.addba_req.start_seq_num) >> 4; + + capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab); + ba_policy = (capab & IEEE80211_ADDBA_PARAM_POLICY_MASK) >> 1; + tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2; + buf_size = (capab & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) >> 6; + + __ieee80211_start_rx_ba_session(sta, dialog_token, timeout, + start_seq_num, ba_policy, tid, + buf_size, true); +} + +void ieee80211_start_rx_ba_session_offl(struct ieee80211_vif *vif, + const u8 *addr, u16 tid) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_local *local = sdata->local; + struct ieee80211_rx_agg *rx_agg; + struct sk_buff *skb = dev_alloc_skb(0); + + if (unlikely(!skb)) + return; + + rx_agg = (struct ieee80211_rx_agg *) &skb->cb; + memcpy(&rx_agg->addr, addr, ETH_ALEN); + rx_agg->tid = tid; + + skb->pkt_type = IEEE80211_SDATA_QUEUE_RX_AGG_START; + skb_queue_tail(&sdata->skb_queue, skb); + ieee80211_queue_work(&local->hw, &sdata->work); +} +EXPORT_SYMBOL(ieee80211_start_rx_ba_session_offl); + +void ieee80211_stop_rx_ba_session_offl(struct ieee80211_vif *vif, + const u8 *addr, u16 tid) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_local *local = sdata->local; + struct ieee80211_rx_agg *rx_agg; + struct sk_buff *skb = dev_alloc_skb(0); + + if (unlikely(!skb)) + return; + + rx_agg = (struct ieee80211_rx_agg *) &skb->cb; + memcpy(&rx_agg->addr, addr, ETH_ALEN); + rx_agg->tid = tid; + + skb->pkt_type = IEEE80211_SDATA_QUEUE_RX_AGG_STOP; + skb_queue_tail(&sdata->skb_queue, skb); + ieee80211_queue_work(&local->hw, &sdata->work); } +EXPORT_SYMBOL(ieee80211_stop_rx_ba_session_offl); diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index c3fd4d2..6d537f0 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -66,7 +66,7 @@ static bool ieee80211_can_create_new_chanctx(struct ieee80211_local *local) static struct ieee80211_chanctx * ieee80211_vif_get_chanctx(struct ieee80211_sub_if_data *sdata) { - struct ieee80211_local *local = sdata->local; + struct ieee80211_local *local __maybe_unused = sdata->local; struct ieee80211_chanctx_conf *conf; conf = rcu_dereference_protected(sdata->vif.chanctx_conf, diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index 15702ff6..ff630be 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -150,13 +150,12 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, /* * If user has specified capability over-rides, take care - * of that if the station we're setting up is the AP that + * of that if the station we're setting up is the AP or TDLS peer that * we advertised a restricted capability set to. Override * our own capabilities and then use those below. */ - if ((sdata->vif.type == NL80211_IFTYPE_STATION || - sdata->vif.type == NL80211_IFTYPE_ADHOC) && - !test_sta_flag(sta, WLAN_STA_TDLS_PEER)) + if (sdata->vif.type == NL80211_IFTYPE_STATION || + sdata->vif.type == NL80211_IFTYPE_ADHOC) ieee80211_apply_htcap_overrides(sdata, &own_cap); /* @@ -228,6 +227,9 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, if (own_cap.mcs.rx_mask[32/8] & ht_cap_ie->mcs.rx_mask[32/8] & 1) ht_cap.mcs.rx_mask[32/8] |= 1; + /* set Rx highest rate */ + ht_cap.mcs.rx_highest = ht_cap_ie->mcs.rx_highest; + apply: changed = memcmp(&sta->sta.ht_cap, &ht_cap, sizeof(ht_cap)); diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 713485f..9713dc5 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -189,17 +189,8 @@ ieee80211_ibss_build_presp(struct ieee80211_sub_if_data *sdata, chandef, 0); } - if (local->hw.queues >= IEEE80211_NUM_ACS) { - *pos++ = WLAN_EID_VENDOR_SPECIFIC; - *pos++ = 7; /* len */ - *pos++ = 0x00; /* Microsoft OUI 00:50:F2 */ - *pos++ = 0x50; - *pos++ = 0xf2; - *pos++ = 2; /* WME */ - *pos++ = 0; /* WME info */ - *pos++ = 1; /* WME ver */ - *pos++ = 0; /* U-APSD no in use */ - } + if (local->hw.queues >= IEEE80211_NUM_ACS) + pos = ieee80211_add_wmm_info_ie(pos, 0); /* U-APSD not in use */ presp->head_len = pos - presp->head; if (WARN_ON(presp->head_len > frame_len)) diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 9e025e1..ef7a089 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -345,7 +345,6 @@ enum ieee80211_sta_flags { IEEE80211_STA_CONNECTION_POLL = BIT(1), IEEE80211_STA_CONTROL_PORT = BIT(2), IEEE80211_STA_DISABLE_HT = BIT(4), - IEEE80211_STA_CSA_RECEIVED = BIT(5), IEEE80211_STA_MFP_ENABLED = BIT(6), IEEE80211_STA_UAPSD_ENABLED = BIT(7), IEEE80211_STA_NULLFUNC_ACKED = BIT(8), @@ -503,6 +502,9 @@ struct ieee80211_if_managed { struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */ struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */ + + u8 tdls_peer[ETH_ALEN] __aligned(2); + struct delayed_work tdls_peer_del_work; }; struct ieee80211_if_ibss { @@ -815,9 +817,6 @@ struct ieee80211_sub_if_data { bool radar_required; struct delayed_work dfs_cac_timer_work; - u8 tdls_peer[ETH_ALEN] __aligned(2); - struct delayed_work tdls_peer_del_work; - /* * AP this belongs to: self in AP mode and * corresponding AP in VLAN mode, NULL for @@ -926,10 +925,17 @@ ieee80211_vif_get_shift(struct ieee80211_vif *vif) return shift; } +struct ieee80211_rx_agg { + u8 addr[ETH_ALEN]; + u16 tid; +}; + enum sdata_queue_type { IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0, IEEE80211_SDATA_QUEUE_AGG_START = 1, IEEE80211_SDATA_QUEUE_AGG_STOP = 2, + IEEE80211_SDATA_QUEUE_RX_AGG_START = 3, + IEEE80211_SDATA_QUEUE_RX_AGG_STOP = 4, }; enum { @@ -1578,6 +1584,10 @@ void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, u16 initiator, u16 reason, bool stop); void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, u16 initiator, u16 reason, bool stop); +void __ieee80211_start_rx_ba_session(struct sta_info *sta, + u8 dialog_token, u16 timeout, + u16 start_seq_num, u16 ba_policy, u16 tid, + u16 buf_size, bool tx); void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, enum ieee80211_agg_stop_reason reason); void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, @@ -1730,6 +1740,21 @@ static inline void ieee802_11_parse_elems(const u8 *start, size_t len, ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0); } +static inline bool ieee80211_rx_reorder_ready(struct sk_buff_head *frames) +{ + struct sk_buff *tail = skb_peek_tail(frames); + struct ieee80211_rx_status *status; + + if (!tail) + return false; + + status = IEEE80211_SKB_RXCB(tail); + if (status->flag & RX_FLAG_AMSDU_MORE) + return false; + + return true; +} + void ieee80211_dynamic_ps_enable_work(struct work_struct *work); void ieee80211_dynamic_ps_disable_work(struct work_struct *work); void ieee80211_dynamic_ps_timer(unsigned long data); @@ -1824,6 +1849,7 @@ int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, bool need_basic, enum ieee80211_band band); +u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo); /* channel management */ void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan, diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 4edfc7c..01eede7 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -1140,6 +1140,7 @@ static void ieee80211_iface_work(struct work_struct *work) struct sk_buff *skb; struct sta_info *sta; struct ieee80211_ra_tid *ra_tid; + struct ieee80211_rx_agg *rx_agg; if (!ieee80211_sdata_running(sdata)) return; @@ -1167,6 +1168,34 @@ static void ieee80211_iface_work(struct work_struct *work) ra_tid = (void *)&skb->cb; ieee80211_stop_tx_ba_cb(&sdata->vif, ra_tid->ra, ra_tid->tid); + } else if (skb->pkt_type == IEEE80211_SDATA_QUEUE_RX_AGG_START) { + rx_agg = (void *)&skb->cb; + mutex_lock(&local->sta_mtx); + sta = sta_info_get_bss(sdata, rx_agg->addr); + if (sta) { + u16 last_seq; + + last_seq = le16_to_cpu( + sta->last_seq_ctrl[rx_agg->tid]); + + __ieee80211_start_rx_ba_session(sta, + 0, 0, + ieee80211_sn_inc(last_seq), + 1, rx_agg->tid, + IEEE80211_MAX_AMPDU_BUF, + false); + } + mutex_unlock(&local->sta_mtx); + } else if (skb->pkt_type == IEEE80211_SDATA_QUEUE_RX_AGG_STOP) { + rx_agg = (void *)&skb->cb; + mutex_lock(&local->sta_mtx); + sta = sta_info_get_bss(sdata, rx_agg->addr); + if (sta) + __ieee80211_stop_rx_ba_session(sta, + rx_agg->tid, + WLAN_BACK_RECIPIENT, 0, + false); + mutex_unlock(&local->sta_mtx); } else if (ieee80211_is_action(mgmt->frame_control) && mgmt->u.action.category == WLAN_CATEGORY_BACK) { int len = skb->len; @@ -1672,8 +1701,6 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name, ieee80211_dfs_cac_timer_work); INIT_DELAYED_WORK(&sdata->dec_tailroom_needed_wk, ieee80211_delayed_tailroom_dec); - INIT_DELAYED_WORK(&sdata->tdls_peer_del_work, - ieee80211_tdls_peer_del_work); for (i = 0; i < IEEE80211_NUM_BANDS; i++) { struct ieee80211_supported_band *sband; diff --git a/net/mac80211/key.c b/net/mac80211/key.c index 16d97f0..d808cff 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -482,9 +482,6 @@ int ieee80211_key_link(struct ieee80211_key *key, int idx, ret; bool pairwise; - if (WARN_ON(!sdata || !key)) - return -EINVAL; - pairwise = key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE; idx = key->conf.keyidx; key->local = sdata->local; diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 931330b..31a8afa 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -830,16 +830,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) qos_info = 0; } - pos = skb_put(skb, 9); - *pos++ = WLAN_EID_VENDOR_SPECIFIC; - *pos++ = 7; /* len */ - *pos++ = 0x00; /* Microsoft OUI 00:50:F2 */ - *pos++ = 0x50; - *pos++ = 0xf2; - *pos++ = 2; /* WME */ - *pos++ = 0; /* WME info */ - *pos++ = 1; /* WME ver */ - *pos++ = qos_info; + pos = ieee80211_add_wmm_info_ie(skb_put(skb, 9), qos_info); } /* add any remaining custom (i.e. vendor specific here) IEs */ @@ -1005,8 +996,6 @@ static void ieee80211_chswitch_work(struct work_struct *work) sdata->csa_block_tx = false; } - ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED; - ieee80211_sta_reset_beacon_monitor(sdata); ieee80211_sta_reset_conn_monitor(sdata); @@ -1064,7 +1053,7 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata, return; /* disregard subsequent announcements if we are already processing */ - if (ifmgd->flags & IEEE80211_STA_CSA_RECEIVED) + if (sdata->vif.csa_active) return; current_band = cbss->channel->band; @@ -1091,8 +1080,6 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata, return; } - ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED; - mutex_lock(&local->mtx); mutex_lock(&local->chanctx_mtx); conf = rcu_dereference_protected(sdata->vif.chanctx_conf, @@ -2108,8 +2095,6 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata) ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, true, frame_buf); - ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED; - mutex_lock(&local->mtx); sdata->vif.csa_active = false; if (sdata->csa_block_tx) { @@ -3722,6 +3707,8 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata) INIT_WORK(&ifmgd->csa_connection_drop_work, ieee80211_csa_connection_drop_work); INIT_WORK(&ifmgd->request_smps_work, ieee80211_request_smps_mgd_work); + INIT_DELAYED_WORK(&ifmgd->tdls_peer_del_work, + ieee80211_tdls_peer_del_work); setup_timer(&ifmgd->timer, ieee80211_sta_timer, (unsigned long) sdata); setup_timer(&ifmgd->bcn_mon_timer, ieee80211_sta_bcn_mon_timer, @@ -4585,6 +4572,7 @@ void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata) cancel_work_sync(&ifmgd->request_smps_work); cancel_work_sync(&ifmgd->csa_connection_drop_work); cancel_work_sync(&ifmgd->chswitch_work); + cancel_delayed_work_sync(&ifmgd->tdls_peer_del_work); sdata_lock(sdata); if (ifmgd->assoc_data) { diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 5f572be..bd2c9b2 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -688,20 +688,27 @@ static void ieee80211_release_reorder_frame(struct ieee80211_sub_if_data *sdata, int index, struct sk_buff_head *frames) { - struct sk_buff *skb = tid_agg_rx->reorder_buf[index]; + struct sk_buff_head *skb_list = &tid_agg_rx->reorder_buf[index]; + struct sk_buff *skb; struct ieee80211_rx_status *status; lockdep_assert_held(&tid_agg_rx->reorder_lock); - if (!skb) + if (skb_queue_empty(skb_list)) + goto no_frame; + + if (!ieee80211_rx_reorder_ready(skb_list)) { + __skb_queue_purge(skb_list); goto no_frame; + } - /* release the frame from the reorder ring buffer */ + /* release frames from the reorder ring buffer */ tid_agg_rx->stored_mpdu_num--; - tid_agg_rx->reorder_buf[index] = NULL; - status = IEEE80211_SKB_RXCB(skb); - status->rx_flags |= IEEE80211_RX_DEFERRED_RELEASE; - __skb_queue_tail(frames, skb); + while ((skb = __skb_dequeue(skb_list))) { + status = IEEE80211_SKB_RXCB(skb); + status->rx_flags |= IEEE80211_RX_DEFERRED_RELEASE; + __skb_queue_tail(frames, skb); + } no_frame: tid_agg_rx->head_seq_num = ieee80211_sn_inc(tid_agg_rx->head_seq_num); @@ -738,13 +745,13 @@ static void ieee80211_sta_reorder_release(struct ieee80211_sub_if_data *sdata, struct tid_ampdu_rx *tid_agg_rx, struct sk_buff_head *frames) { - int index, j; + int index, i, j; lockdep_assert_held(&tid_agg_rx->reorder_lock); /* release the buffer until next missing frame */ index = tid_agg_rx->head_seq_num % tid_agg_rx->buf_size; - if (!tid_agg_rx->reorder_buf[index] && + if (!ieee80211_rx_reorder_ready(&tid_agg_rx->reorder_buf[index]) && tid_agg_rx->stored_mpdu_num) { /* * No buffers ready to be released, but check whether any @@ -753,7 +760,8 @@ static void ieee80211_sta_reorder_release(struct ieee80211_sub_if_data *sdata, int skipped = 1; for (j = (index + 1) % tid_agg_rx->buf_size; j != index; j = (j + 1) % tid_agg_rx->buf_size) { - if (!tid_agg_rx->reorder_buf[j]) { + if (!ieee80211_rx_reorder_ready( + &tid_agg_rx->reorder_buf[j])) { skipped++; continue; } @@ -762,6 +770,11 @@ static void ieee80211_sta_reorder_release(struct ieee80211_sub_if_data *sdata, HT_RX_REORDER_BUF_TIMEOUT)) goto set_release_timer; + /* don't leave incomplete A-MSDUs around */ + for (i = (index + 1) % tid_agg_rx->buf_size; i != j; + i = (i + 1) % tid_agg_rx->buf_size) + __skb_queue_purge(&tid_agg_rx->reorder_buf[i]); + ht_dbg_ratelimited(sdata, "release an RX reorder frame due to timeout on earlier frames\n"); ieee80211_release_reorder_frame(sdata, tid_agg_rx, j, @@ -775,7 +788,8 @@ static void ieee80211_sta_reorder_release(struct ieee80211_sub_if_data *sdata, skipped) & IEEE80211_SN_MASK; skipped = 0; } - } else while (tid_agg_rx->reorder_buf[index]) { + } else while (ieee80211_rx_reorder_ready( + &tid_agg_rx->reorder_buf[index])) { ieee80211_release_reorder_frame(sdata, tid_agg_rx, index, frames); index = tid_agg_rx->head_seq_num % tid_agg_rx->buf_size; @@ -786,7 +800,8 @@ static void ieee80211_sta_reorder_release(struct ieee80211_sub_if_data *sdata, for (; j != (index - 1) % tid_agg_rx->buf_size; j = (j + 1) % tid_agg_rx->buf_size) { - if (tid_agg_rx->reorder_buf[j]) + if (ieee80211_rx_reorder_ready( + &tid_agg_rx->reorder_buf[j])) break; } @@ -811,6 +826,7 @@ static bool ieee80211_sta_manage_reorder_buf(struct ieee80211_sub_if_data *sdata struct sk_buff_head *frames) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; + struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); u16 sc = le16_to_cpu(hdr->seq_ctrl); u16 mpdu_seq_num = (sc & IEEE80211_SCTL_SEQ) >> 4; u16 head_seq_num, buf_size; @@ -845,7 +861,7 @@ static bool ieee80211_sta_manage_reorder_buf(struct ieee80211_sub_if_data *sdata index = mpdu_seq_num % tid_agg_rx->buf_size; /* check if we already stored this frame */ - if (tid_agg_rx->reorder_buf[index]) { + if (ieee80211_rx_reorder_ready(&tid_agg_rx->reorder_buf[index])) { dev_kfree_skb(skb); goto out; } @@ -858,17 +874,20 @@ static bool ieee80211_sta_manage_reorder_buf(struct ieee80211_sub_if_data *sdata */ if (mpdu_seq_num == tid_agg_rx->head_seq_num && tid_agg_rx->stored_mpdu_num == 0) { - tid_agg_rx->head_seq_num = - ieee80211_sn_inc(tid_agg_rx->head_seq_num); + if (!(status->flag & RX_FLAG_AMSDU_MORE)) + tid_agg_rx->head_seq_num = + ieee80211_sn_inc(tid_agg_rx->head_seq_num); ret = false; goto out; } /* put the frame in the reordering buffer */ - tid_agg_rx->reorder_buf[index] = skb; - tid_agg_rx->reorder_time[index] = jiffies; - tid_agg_rx->stored_mpdu_num++; - ieee80211_sta_reorder_release(sdata, tid_agg_rx, frames); + __skb_queue_tail(&tid_agg_rx->reorder_buf[index], skb); + if (!(status->flag & RX_FLAG_AMSDU_MORE)) { + tid_agg_rx->reorder_time[index] = jiffies; + tid_agg_rx->stored_mpdu_num++; + ieee80211_sta_reorder_release(sdata, tid_agg_rx, frames); + } out: spin_unlock(&tid_agg_rx->reorder_lock); @@ -3129,6 +3148,14 @@ static bool prepare_for_handlers(struct ieee80211_rx_data *rx, if (!ieee80211_is_beacon(hdr->frame_control)) return false; status->rx_flags &= ~IEEE80211_RX_RA_MATCH; + } else if (!ieee80211_has_tods(hdr->frame_control)) { + /* ignore data frames to TDLS-peers */ + if (ieee80211_is_data(hdr->frame_control)) + return false; + /* ignore action frames to TDLS-peers */ + if (ieee80211_is_action(hdr->frame_control) && + !ether_addr_equal(bssid, hdr->addr1)) + return false; } break; case NL80211_IFTYPE_WDS: diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index f41177f..c6ee213 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -1724,12 +1724,15 @@ void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) { struct ieee80211_sub_if_data *sdata = sta->sdata; struct ieee80211_local *local = sdata->local; - struct rate_control_ref *ref = local->rate_ctrl; + struct rate_control_ref *ref = NULL; struct timespec uptime; u64 packets = 0; u32 thr = 0; int i, ac; + if (test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) + ref = local->rate_ctrl; + sinfo->generation = sdata->local->sta_generation; sinfo->filled = STATION_INFO_INACTIVE_TIME | diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 2a04361..d411bcc 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -47,6 +47,8 @@ * @WLAN_STA_TDLS_PEER: Station is a TDLS peer. * @WLAN_STA_TDLS_PEER_AUTH: This TDLS peer is authorized to send direct * packets. This means the link is enabled. + * @WLAN_STA_TDLS_INITIATOR: We are the initiator of the TDLS link with this + * station. * @WLAN_STA_UAPSD: Station requested unscheduled SP while driver was * keeping station in power-save mode, reply when the driver * unblocks the station. @@ -76,6 +78,7 @@ enum ieee80211_sta_info_flags { WLAN_STA_PSPOLL, WLAN_STA_TDLS_PEER, WLAN_STA_TDLS_PEER_AUTH, + WLAN_STA_TDLS_INITIATOR, WLAN_STA_UAPSD, WLAN_STA_SP, WLAN_STA_4ADDR_EVENT, @@ -152,7 +155,8 @@ struct tid_ampdu_tx { /** * struct tid_ampdu_rx - TID aggregation information (Rx). * - * @reorder_buf: buffer to reorder incoming aggregated MPDUs + * @reorder_buf: buffer to reorder incoming aggregated MPDUs. An MPDU may be an + * A-MSDU with individually reported subframes. * @reorder_time: jiffies when skb was added * @session_timer: check if peer keeps Tx-ing on the TID (by timeout value) * @reorder_timer: releases expired frames from the reorder buffer. @@ -177,7 +181,7 @@ struct tid_ampdu_tx { struct tid_ampdu_rx { struct rcu_head rcu_head; spinlock_t reorder_lock; - struct sk_buff **reorder_buf; + struct sk_buff_head *reorder_buf; unsigned long *reorder_time; struct timer_list session_timer; struct timer_list reorder_timer; diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c index f718533..1b21050 100644 --- a/net/mac80211/tdls.c +++ b/net/mac80211/tdls.c @@ -8,6 +8,7 @@ */ #include <linux/ieee80211.h> +#include <linux/log2.h> #include <net/cfg80211.h> #include "ieee80211_i.h" #include "driver-ops.h" @@ -21,14 +22,14 @@ void ieee80211_tdls_peer_del_work(struct work_struct *wk) struct ieee80211_local *local; sdata = container_of(wk, struct ieee80211_sub_if_data, - tdls_peer_del_work.work); + u.mgd.tdls_peer_del_work.work); local = sdata->local; mutex_lock(&local->mtx); - if (!is_zero_ether_addr(sdata->tdls_peer)) { - tdls_dbg(sdata, "TDLS del peer %pM\n", sdata->tdls_peer); - sta_info_destroy_addr(sdata, sdata->tdls_peer); - eth_zero_addr(sdata->tdls_peer); + if (!is_zero_ether_addr(sdata->u.mgd.tdls_peer)) { + tdls_dbg(sdata, "TDLS del peer %pM\n", sdata->u.mgd.tdls_peer); + sta_info_destroy_addr(sdata, sdata->u.mgd.tdls_peer); + eth_zero_addr(sdata->u.mgd.tdls_peer); } mutex_unlock(&local->mtx); } @@ -46,11 +47,16 @@ static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb) *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED; } -static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata) +static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata, + u16 status_code) { struct ieee80211_local *local = sdata->local; u16 capab; + /* The capability will be 0 when sending a failure code */ + if (status_code != 0) + return 0; + capab = 0; if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ) return capab; @@ -63,19 +69,332 @@ static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata) return capab; } -static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, const u8 *src_addr, - const u8 *peer, const u8 *bssid) +static void ieee80211_tdls_add_link_ie(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, const u8 *peer, + bool initiator) { struct ieee80211_tdls_lnkie *lnkid; + const u8 *init_addr, *rsp_addr; + + if (initiator) { + init_addr = sdata->vif.addr; + rsp_addr = peer; + } else { + init_addr = peer; + rsp_addr = sdata->vif.addr; + } lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie)); lnkid->ie_type = WLAN_EID_LINK_ID; lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2; - memcpy(lnkid->bssid, bssid, ETH_ALEN); - memcpy(lnkid->init_sta, src_addr, ETH_ALEN); - memcpy(lnkid->resp_sta, peer, ETH_ALEN); + memcpy(lnkid->bssid, sdata->u.mgd.bssid, ETH_ALEN); + memcpy(lnkid->init_sta, init_addr, ETH_ALEN); + memcpy(lnkid->resp_sta, rsp_addr, ETH_ALEN); +} + +/* translate numbering in the WMM parameter IE to the mac80211 notation */ +static enum ieee80211_ac_numbers ieee80211_ac_from_wmm(int ac) +{ + switch (ac) { + default: + WARN_ON_ONCE(1); + case 0: + return IEEE80211_AC_BE; + case 1: + return IEEE80211_AC_BK; + case 2: + return IEEE80211_AC_VI; + case 3: + return IEEE80211_AC_VO; + } +} + +static u8 ieee80211_wmm_aci_aifsn(int aifsn, bool acm, int aci) +{ + u8 ret; + + ret = aifsn & 0x0f; + if (acm) + ret |= 0x10; + ret |= (aci << 5) & 0x60; + return ret; +} + +static u8 ieee80211_wmm_ecw(u16 cw_min, u16 cw_max) +{ + return ((ilog2(cw_min + 1) << 0x0) & 0x0f) | + ((ilog2(cw_max + 1) << 0x4) & 0xf0); +} + +static void ieee80211_tdls_add_wmm_param_ie(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb) +{ + struct ieee80211_wmm_param_ie *wmm; + struct ieee80211_tx_queue_params *txq; + int i; + + wmm = (void *)skb_put(skb, sizeof(*wmm)); + memset(wmm, 0, sizeof(*wmm)); + + wmm->element_id = WLAN_EID_VENDOR_SPECIFIC; + wmm->len = sizeof(*wmm) - 2; + + wmm->oui[0] = 0x00; /* Microsoft OUI 00:50:F2 */ + wmm->oui[1] = 0x50; + wmm->oui[2] = 0xf2; + wmm->oui_type = 2; /* WME */ + wmm->oui_subtype = 1; /* WME param */ + wmm->version = 1; /* WME ver */ + wmm->qos_info = 0; /* U-APSD not in use */ + + /* + * Use the EDCA parameters defined for the BSS, or default if the AP + * doesn't support it, as mandated by 802.11-2012 section 10.22.4 + */ + for (i = 0; i < IEEE80211_NUM_ACS; i++) { + txq = &sdata->tx_conf[ieee80211_ac_from_wmm(i)]; + wmm->ac[i].aci_aifsn = ieee80211_wmm_aci_aifsn(txq->aifs, + txq->acm, i); + wmm->ac[i].cw = ieee80211_wmm_ecw(txq->cw_min, txq->cw_max); + wmm->ac[i].txop_limit = cpu_to_le16(txq->txop); + } +} + +static void +ieee80211_tdls_add_setup_start_ies(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, const u8 *peer, + u8 action_code, bool initiator, + const u8 *extra_ies, size_t extra_ies_len) +{ + enum ieee80211_band band = ieee80211_get_sdata_band(sdata); + struct ieee80211_local *local = sdata->local; + struct ieee80211_supported_band *sband; + struct ieee80211_sta_ht_cap ht_cap; + struct sta_info *sta = NULL; + size_t offset = 0, noffset; + u8 *pos; + + rcu_read_lock(); + + /* we should have the peer STA if we're already responding */ + if (action_code == WLAN_TDLS_SETUP_RESPONSE) { + sta = sta_info_get(sdata, peer); + if (WARN_ON_ONCE(!sta)) { + rcu_read_unlock(); + return; + } + } + + ieee80211_add_srates_ie(sdata, skb, false, band); + ieee80211_add_ext_srates_ie(sdata, skb, false, band); + + /* add any custom IEs that go before Extended Capabilities */ + if (extra_ies_len) { + static const u8 before_ext_cap[] = { + WLAN_EID_SUPP_RATES, + WLAN_EID_COUNTRY, + WLAN_EID_EXT_SUPP_RATES, + WLAN_EID_SUPPORTED_CHANNELS, + WLAN_EID_RSN, + }; + noffset = ieee80211_ie_split(extra_ies, extra_ies_len, + before_ext_cap, + ARRAY_SIZE(before_ext_cap), + offset); + pos = skb_put(skb, noffset - offset); + memcpy(pos, extra_ies + offset, noffset - offset); + offset = noffset; + } + + ieee80211_tdls_add_ext_capab(skb); + + /* add the QoS element if we support it */ + if (local->hw.queues >= IEEE80211_NUM_ACS && + action_code != WLAN_PUB_ACTION_TDLS_DISCOVER_RES) + ieee80211_add_wmm_info_ie(skb_put(skb, 9), 0); /* no U-APSD */ + + /* add any custom IEs that go before HT capabilities */ + if (extra_ies_len) { + static const u8 before_ht_cap[] = { + WLAN_EID_SUPP_RATES, + WLAN_EID_COUNTRY, + WLAN_EID_EXT_SUPP_RATES, + WLAN_EID_SUPPORTED_CHANNELS, + WLAN_EID_RSN, + WLAN_EID_EXT_CAPABILITY, + WLAN_EID_QOS_CAPA, + WLAN_EID_FAST_BSS_TRANSITION, + WLAN_EID_TIMEOUT_INTERVAL, + WLAN_EID_SUPPORTED_REGULATORY_CLASSES, + }; + noffset = ieee80211_ie_split(extra_ies, extra_ies_len, + before_ht_cap, + ARRAY_SIZE(before_ht_cap), + offset); + pos = skb_put(skb, noffset - offset); + memcpy(pos, extra_ies + offset, noffset - offset); + offset = noffset; + } + + /* + * with TDLS we can switch channels, and HT-caps are not necessarily + * the same on all bands. The specification limits the setup to a + * single HT-cap, so use the current band for now. + */ + sband = local->hw.wiphy->bands[band]; + memcpy(&ht_cap, &sband->ht_cap, sizeof(ht_cap)); + if ((action_code == WLAN_TDLS_SETUP_REQUEST || + action_code == WLAN_TDLS_SETUP_RESPONSE) && + ht_cap.ht_supported && (!sta || sta->sta.ht_cap.ht_supported)) { + if (action_code == WLAN_TDLS_SETUP_REQUEST) { + ieee80211_apply_htcap_overrides(sdata, &ht_cap); + + /* disable SMPS in TDLS initiator */ + ht_cap.cap |= (WLAN_HT_CAP_SM_PS_DISABLED + << IEEE80211_HT_CAP_SM_PS_SHIFT); + } else { + /* disable SMPS in TDLS responder */ + sta->sta.ht_cap.cap |= + (WLAN_HT_CAP_SM_PS_DISABLED + << IEEE80211_HT_CAP_SM_PS_SHIFT); + + /* the peer caps are already intersected with our own */ + memcpy(&ht_cap, &sta->sta.ht_cap, sizeof(ht_cap)); + } + + pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2); + ieee80211_ie_build_ht_cap(pos, &ht_cap, ht_cap.cap); + } + + rcu_read_unlock(); + + /* add any remaining IEs */ + if (extra_ies_len) { + noffset = extra_ies_len; + pos = skb_put(skb, noffset - offset); + memcpy(pos, extra_ies + offset, noffset - offset); + } + + ieee80211_tdls_add_link_ie(sdata, skb, peer, initiator); +} + +static void +ieee80211_tdls_add_setup_cfm_ies(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, const u8 *peer, + bool initiator, const u8 *extra_ies, + size_t extra_ies_len) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + size_t offset = 0, noffset; + struct sta_info *sta, *ap_sta; + u8 *pos; + + rcu_read_lock(); + + sta = sta_info_get(sdata, peer); + ap_sta = sta_info_get(sdata, ifmgd->bssid); + if (WARN_ON_ONCE(!sta || !ap_sta)) { + rcu_read_unlock(); + return; + } + + /* add any custom IEs that go before the QoS IE */ + if (extra_ies_len) { + static const u8 before_qos[] = { + WLAN_EID_RSN, + }; + noffset = ieee80211_ie_split(extra_ies, extra_ies_len, + before_qos, + ARRAY_SIZE(before_qos), + offset); + pos = skb_put(skb, noffset - offset); + memcpy(pos, extra_ies + offset, noffset - offset); + offset = noffset; + } + + /* add the QoS param IE if both the peer and we support it */ + if (local->hw.queues >= IEEE80211_NUM_ACS && + test_sta_flag(sta, WLAN_STA_WME)) + ieee80211_tdls_add_wmm_param_ie(sdata, skb); + + /* add any custom IEs that go before HT operation */ + if (extra_ies_len) { + static const u8 before_ht_op[] = { + WLAN_EID_RSN, + WLAN_EID_QOS_CAPA, + WLAN_EID_FAST_BSS_TRANSITION, + WLAN_EID_TIMEOUT_INTERVAL, + }; + noffset = ieee80211_ie_split(extra_ies, extra_ies_len, + before_ht_op, + ARRAY_SIZE(before_ht_op), + offset); + pos = skb_put(skb, noffset - offset); + memcpy(pos, extra_ies + offset, noffset - offset); + offset = noffset; + } + + /* if HT support is only added in TDLS, we need an HT-operation IE */ + if (!ap_sta->sta.ht_cap.ht_supported && sta->sta.ht_cap.ht_supported) { + struct ieee80211_chanctx_conf *chanctx_conf = + rcu_dereference(sdata->vif.chanctx_conf); + if (!WARN_ON(!chanctx_conf)) { + pos = skb_put(skb, 2 + + sizeof(struct ieee80211_ht_operation)); + /* send an empty HT operation IE */ + ieee80211_ie_build_ht_oper(pos, &sta->sta.ht_cap, + &chanctx_conf->def, 0); + } + } + + rcu_read_unlock(); + + /* add any remaining IEs */ + if (extra_ies_len) { + noffset = extra_ies_len; + pos = skb_put(skb, noffset - offset); + memcpy(pos, extra_ies + offset, noffset - offset); + } + + ieee80211_tdls_add_link_ie(sdata, skb, peer, initiator); +} + +static void ieee80211_tdls_add_ies(struct ieee80211_sub_if_data *sdata, + struct sk_buff *skb, const u8 *peer, + u8 action_code, u16 status_code, + bool initiator, const u8 *extra_ies, + size_t extra_ies_len) +{ + switch (action_code) { + case WLAN_TDLS_SETUP_REQUEST: + case WLAN_TDLS_SETUP_RESPONSE: + case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: + if (status_code == 0) + ieee80211_tdls_add_setup_start_ies(sdata, skb, peer, + action_code, + initiator, + extra_ies, + extra_ies_len); + break; + case WLAN_TDLS_SETUP_CONFIRM: + if (status_code == 0) + ieee80211_tdls_add_setup_cfm_ies(sdata, skb, peer, + initiator, extra_ies, + extra_ies_len); + break; + case WLAN_TDLS_TEARDOWN: + case WLAN_TDLS_DISCOVERY_REQUEST: + if (extra_ies_len) + memcpy(skb_put(skb, extra_ies_len), extra_ies, + extra_ies_len); + if (status_code == 0 || action_code == WLAN_TDLS_TEARDOWN) + ieee80211_tdls_add_link_ie(sdata, skb, peer, initiator); + break; + } + } static int @@ -84,7 +403,6 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev, u16 status_code, struct sk_buff *skb) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - enum ieee80211_band band = ieee80211_get_sdata_band(sdata); struct ieee80211_tdls_data *tf; tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u)); @@ -102,11 +420,8 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev, skb_put(skb, sizeof(tf->u.setup_req)); tf->u.setup_req.dialog_token = dialog_token; tf->u.setup_req.capability = - cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); - - ieee80211_add_srates_ie(sdata, skb, false, band); - ieee80211_add_ext_srates_ie(sdata, skb, false, band); - ieee80211_tdls_add_ext_capab(skb); + cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata, + status_code)); break; case WLAN_TDLS_SETUP_RESPONSE: tf->category = WLAN_CATEGORY_TDLS; @@ -116,11 +431,8 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev, tf->u.setup_resp.status_code = cpu_to_le16(status_code); tf->u.setup_resp.dialog_token = dialog_token; tf->u.setup_resp.capability = - cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); - - ieee80211_add_srates_ie(sdata, skb, false, band); - ieee80211_add_ext_srates_ie(sdata, skb, false, band); - ieee80211_tdls_add_ext_capab(skb); + cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata, + status_code)); break; case WLAN_TDLS_SETUP_CONFIRM: tf->category = WLAN_CATEGORY_TDLS; @@ -157,7 +469,6 @@ ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev, u16 status_code, struct sk_buff *skb) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - enum ieee80211_band band = ieee80211_get_sdata_band(sdata); struct ieee80211_mgmt *mgmt; mgmt = (void *)skb_put(skb, 24); @@ -178,11 +489,8 @@ ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev, mgmt->u.action.u.tdls_discover_resp.dialog_token = dialog_token; mgmt->u.action.u.tdls_discover_resp.capability = - cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); - - ieee80211_add_srates_ie(sdata, skb, false, band); - ieee80211_add_ext_srates_ie(sdata, skb, false, band); - ieee80211_tdls_add_ext_capab(skb); + cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata, + status_code)); break; default: return -EINVAL; @@ -202,7 +510,7 @@ ieee80211_tdls_prep_mgmt_packet(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_local *local = sdata->local; struct sk_buff *skb = NULL; bool send_direct; - const u8 *init_addr, *rsp_addr; + struct sta_info *sta; int ret; skb = dev_alloc_skb(local->hw.extra_tx_headroom + @@ -210,6 +518,9 @@ ieee80211_tdls_prep_mgmt_packet(struct wiphy *wiphy, struct net_device *dev, sizeof(struct ieee80211_tdls_data)) + 50 + /* supported rates */ 7 + /* ext capab */ + 26 + /* max(WMM-info, WMM-param) */ + 2 + max(sizeof(struct ieee80211_ht_cap), + sizeof(struct ieee80211_ht_operation)) + extra_ies_len + sizeof(struct ieee80211_tdls_lnkie)); if (!skb) @@ -242,45 +553,48 @@ ieee80211_tdls_prep_mgmt_packet(struct wiphy *wiphy, struct net_device *dev, if (ret < 0) goto fail; - if (extra_ies_len) - memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len); + rcu_read_lock(); + sta = sta_info_get(sdata, peer); - /* sanity check for initiator */ + /* infer the initiator if we can, to support old userspace */ switch (action_code) { case WLAN_TDLS_SETUP_REQUEST: + if (sta) + set_sta_flag(sta, WLAN_STA_TDLS_INITIATOR); + /* fall-through */ case WLAN_TDLS_SETUP_CONFIRM: case WLAN_TDLS_DISCOVERY_REQUEST: - if (!initiator) { - ret = -EINVAL; - goto fail; - } + initiator = true; break; case WLAN_TDLS_SETUP_RESPONSE: + /* + * In some testing scenarios, we send a request and response. + * Make the last packet sent take effect for the initiator + * value. + */ + if (sta) + clear_sta_flag(sta, WLAN_STA_TDLS_INITIATOR); + /* fall-through */ case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: - if (initiator) { - ret = -EINVAL; - goto fail; - } + initiator = false; break; case WLAN_TDLS_TEARDOWN: /* any value is ok */ break; default: ret = -ENOTSUPP; - goto fail; + break; } - if (initiator) { - init_addr = sdata->vif.addr; - rsp_addr = peer; - } else { - init_addr = peer; - rsp_addr = sdata->vif.addr; - } + if (sta && test_sta_flag(sta, WLAN_STA_TDLS_INITIATOR)) + initiator = true; - ieee80211_tdls_add_link_ie(skb, init_addr, rsp_addr, - sdata->u.mgd.bssid); + rcu_read_unlock(); + if (ret < 0) + goto fail; + ieee80211_tdls_add_ies(sdata, skb, peer, action_code, status_code, + initiator, extra_ies, extra_ies_len); if (send_direct) { ieee80211_tx_skb(sdata, skb); return 0; @@ -327,8 +641,8 @@ ieee80211_tdls_mgmt_setup(struct wiphy *wiphy, struct net_device *dev, mutex_lock(&local->mtx); /* we don't support concurrent TDLS peer setups */ - if (!is_zero_ether_addr(sdata->tdls_peer) && - !ether_addr_equal(sdata->tdls_peer, peer)) { + if (!is_zero_ether_addr(sdata->u.mgd.tdls_peer) && + !ether_addr_equal(sdata->u.mgd.tdls_peer, peer)) { ret = -EBUSY; goto exit; } @@ -336,15 +650,19 @@ ieee80211_tdls_mgmt_setup(struct wiphy *wiphy, struct net_device *dev, /* * make sure we have a STA representing the peer so we drop or buffer * non-TDLS-setup frames to the peer. We can't send other packets - * during setup through the AP path + * during setup through the AP path. + * Allow error packets to be sent - sometimes we don't even add a STA + * before failing the setup. */ - rcu_read_lock(); - if (!sta_info_get(sdata, peer)) { + if (status_code == 0) { + rcu_read_lock(); + if (!sta_info_get(sdata, peer)) { + rcu_read_unlock(); + ret = -ENOLINK; + goto exit; + } rcu_read_unlock(); - ret = -ENOLINK; - goto exit; } - rcu_read_unlock(); ieee80211_flush_queues(local, sdata); @@ -355,9 +673,9 @@ ieee80211_tdls_mgmt_setup(struct wiphy *wiphy, struct net_device *dev, if (ret < 0) goto exit; - memcpy(sdata->tdls_peer, peer, ETH_ALEN); + memcpy(sdata->u.mgd.tdls_peer, peer, ETH_ALEN); ieee80211_queue_delayed_work(&sdata->local->hw, - &sdata->tdls_peer_del_work, + &sdata->u.mgd.tdls_peer_del_work, TDLS_PEER_SETUP_TIMEOUT); exit: @@ -513,11 +831,22 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH); rcu_read_unlock(); - WARN_ON_ONCE(is_zero_ether_addr(sdata->tdls_peer) || - !ether_addr_equal(sdata->tdls_peer, peer)); + WARN_ON_ONCE(is_zero_ether_addr(sdata->u.mgd.tdls_peer) || + !ether_addr_equal(sdata->u.mgd.tdls_peer, peer)); ret = 0; break; case NL80211_TDLS_DISABLE_LINK: + /* + * The teardown message in ieee80211_tdls_mgmt_teardown() was + * created while the queues were stopped, so it might still be + * pending. Before flushing the queues we need to be sure the + * message is handled by the tasklet handling pending messages, + * otherwise we might start destroying the station before + * sending the teardown packet. + * Note that this only forces the tasklet to flush pendings - + * not to stop the tasklet from rescheduling itself. + */ + tasklet_kill(&local->tx_pending_tasklet); /* flush a potentially queued teardown packet */ ieee80211_flush_queues(local, sdata); @@ -528,9 +857,9 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, break; } - if (ret == 0 && ether_addr_equal(sdata->tdls_peer, peer)) { - cancel_delayed_work(&sdata->tdls_peer_del_work); - eth_zero_addr(sdata->tdls_peer); + if (ret == 0 && ether_addr_equal(sdata->u.mgd.tdls_peer, peer)) { + cancel_delayed_work(&sdata->u.mgd.tdls_peer_del_work); + eth_zero_addr(sdata->u.mgd.tdls_peer); } mutex_unlock(&local->mtx); diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 865bdaf..464106c 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -415,6 +415,9 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx) if (ieee80211_has_order(hdr->frame_control)) return TX_CONTINUE; + if (ieee80211_is_probe_req(hdr->frame_control)) + return TX_CONTINUE; + if (tx->local->hw.flags & IEEE80211_HW_QUEUE_CONTROL) info->hw_queue = tx->sdata->vif.cab_queue; @@ -464,6 +467,7 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx) { struct sta_info *sta = tx->sta; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; struct ieee80211_local *local = tx->local; if (unlikely(!sta)) @@ -475,6 +479,12 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx) !(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER))) { int ac = skb_get_queue_mapping(tx->skb); + if (ieee80211_is_mgmt(hdr->frame_control) && + !ieee80211_is_bufferable_mmpdu(hdr->frame_control)) { + info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER; + return TX_CONTINUE; + } + ps_dbg(sta->sdata, "STA %pM aid %d: PS buffer for AC %d\n", sta->sta.addr, sta->sta.aid, ac); if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER) @@ -534,19 +544,9 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx) static ieee80211_tx_result debug_noinline ieee80211_tx_h_ps_buf(struct ieee80211_tx_data *tx) { - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; - if (unlikely(tx->flags & IEEE80211_TX_PS_BUFFERED)) return TX_CONTINUE; - if (ieee80211_is_mgmt(hdr->frame_control) && - !ieee80211_is_bufferable_mmpdu(hdr->frame_control)) { - if (tx->flags & IEEE80211_TX_UNICAST) - info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER; - return TX_CONTINUE; - } - if (tx->flags & IEEE80211_TX_UNICAST) return ieee80211_tx_h_unicast_ps_buf(tx); else diff --git a/net/mac80211/util.c b/net/mac80211/util.c index df1bb7e..725af7a 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -3083,3 +3083,18 @@ int ieee80211_max_num_channels(struct ieee80211_local *local) return max_num_different_channels; } + +u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo) +{ + *buf++ = WLAN_EID_VENDOR_SPECIFIC; + *buf++ = 7; /* len */ + *buf++ = 0x00; /* Microsoft OUI 00:50:F2 */ + *buf++ = 0x50; + *buf++ = 0xf2; + *buf++ = 2; /* WME */ + *buf++ = 0; /* WME info */ + *buf++ = 1; /* WME ver */ + *buf++ = qosinfo; /* U-APSD no in use */ + + return buf; +} diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c index 9265adf..671ce0d 100644 --- a/net/mac80211/vht.c +++ b/net/mac80211/vht.c @@ -129,6 +129,10 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, if (!vht_cap_ie || !sband->vht_cap.vht_supported) return; + /* don't support VHT for TDLS peers for now */ + if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) + return; + /* * A VHT STA must support 40 MHz, but if we verify that here * then we break a few things - some APs (e.g. Netgear R6300v2 diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index 9b3dcc2..f7d4ca4 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -811,7 +811,7 @@ ieee80211_crypto_hw_encrypt(struct ieee80211_tx_data *tx) ieee80211_rx_result ieee80211_crypto_hw_decrypt(struct ieee80211_rx_data *rx) { - if (rx->sta->cipher_scheme) + if (rx->sta && rx->sta->cipher_scheme) return ieee80211_crypto_cs_decrypt(rx); return RX_DROP_UNUSABLE; diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig index 405f3c4..29c8675 100644 --- a/net/wireless/Kconfig +++ b/net/wireless/Kconfig @@ -162,6 +162,12 @@ config CFG80211_INTERNAL_REGDB and includes code to query that database. This is an alternative to using CRDA for defining regulatory rules for the kernel. + Using this option requires some parsing of the db.txt at build time, + the parser will be upkept with the latest wireless-regdb updates but + older wireless-regdb formats will be ignored. The parser may later + be replaced to avoid issues with conflicts on versions of + wireless-regdb. + For details see: http://wireless.kernel.org/en/developers/Regulatory diff --git a/net/wireless/genregdb.awk b/net/wireless/genregdb.awk index 40c37fc..baf2426 100644 --- a/net/wireless/genregdb.awk +++ b/net/wireless/genregdb.awk @@ -51,32 +51,41 @@ function parse_country_head() { function parse_reg_rule() { + flag_starts_at = 7 + start = $1 sub(/\(/, "", start) end = $3 bw = $5 sub(/\),/, "", bw) - gain = $6 - sub(/\(/, "", gain) - sub(/,/, "", gain) - power = $7 - sub(/\)/, "", power) - sub(/,/, "", power) + gain = 0 + power = $6 # power might be in mW... - units = $8 + units = $7 + dfs_cac = 0 + + sub(/\(/, "", power) + sub(/\),/, "", power) + sub(/\),/, "", units) sub(/\)/, "", units) - sub(/,/, "", units) - dfs_cac = $9 + if (units == "mW") { + flag_starts_at = 8 power = 10 * log(power)/log(10) + if ($8 ~ /[[:digit:]]/) { + flag_starts_at = 9 + dfs_cac = $8 + } } else { - dfs_cac = $8 + if ($7 ~ /[[:digit:]]/) { + flag_starts_at = 8 + dfs_cac = $7 + } } - sub(/,/, "", dfs_cac) sub(/\(/, "", dfs_cac) - sub(/\)/, "", dfs_cac) + sub(/\),/, "", dfs_cac) flagstr = "" - for (i=8; i<=NF; i++) + for (i=flag_starts_at; i<=NF; i++) flagstr = flagstr $i split(flagstr, flagarray, ",") flags = "" diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 082f5c6..df7b133 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -3814,7 +3814,8 @@ int cfg80211_check_station_change(struct wiphy *wiphy, { if (params->listen_interval != -1) return -EINVAL; - if (params->aid) + if (params->aid && + !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) return -EINVAL; /* When you run into this, adjust the code below for the new flag */ diff --git a/net/wireless/trace.h b/net/wireless/trace.h index 85474ee..0c524cd 100644 --- a/net/wireless/trace.h +++ b/net/wireless/trace.h @@ -2049,7 +2049,8 @@ TRACE_EVENT(cfg80211_michael_mic_failure, MAC_ASSIGN(addr, addr); __entry->key_type = key_type; __entry->key_id = key_id; - memcpy(__entry->tsc, tsc, 6); + if (tsc) + memcpy(__entry->tsc, tsc, 6); ), TP_printk(NETDEV_PR_FMT ", " MAC_PR_FMT ", key type: %d, key id: %d, tsc: %pm", NETDEV_PR_ARG, MAC_PR_ARG(addr), __entry->key_type, |