diff options
Diffstat (limited to 'net/bluetooth/hci_conn.c')
-rw-r--r-- | net/bluetooth/hci_conn.c | 75 |
1 files changed, 36 insertions, 39 deletions
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index 3db432473ad5..947172bf1621 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -35,7 +35,6 @@ #include <linux/init.h> #include <linux/skbuff.h> #include <linux/interrupt.h> -#include <linux/notifier.h> #include <net/sock.h> #include <asm/system.h> @@ -51,7 +50,7 @@ static void hci_le_connect(struct hci_conn *conn) struct hci_cp_le_create_conn cp; conn->state = BT_CONNECT; - conn->out = 1; + conn->out = true; conn->link_mode |= HCI_LM_MASTER; conn->sec_level = BT_SECURITY_LOW; @@ -80,10 +79,10 @@ void hci_acl_connect(struct hci_conn *conn) struct inquiry_entry *ie; struct hci_cp_create_conn cp; - BT_DBG("%p", conn); + BT_DBG("hcon %p", conn); conn->state = BT_CONNECT; - conn->out = 1; + conn->out = true; conn->link_mode = HCI_LM_MASTER; @@ -105,7 +104,8 @@ void hci_acl_connect(struct hci_conn *conn) } memcpy(conn->dev_class, ie->data.dev_class, 3); - conn->ssp_mode = ie->data.ssp_mode; + if (ie->data.ssp_mode > 0) + set_bit(HCI_CONN_SSP_ENABLED, &conn->flags); } cp.pkt_type = cpu_to_le16(conn->pkt_type); @@ -151,7 +151,7 @@ void hci_add_sco(struct hci_conn *conn, __u16 handle) BT_DBG("%p", conn); conn->state = BT_CONNECT; - conn->out = 1; + conn->out = true; conn->attempt++; @@ -169,7 +169,7 @@ void hci_setup_sync(struct hci_conn *conn, __u16 handle) BT_DBG("%p", conn); conn->state = BT_CONNECT; - conn->out = 1; + conn->out = true; conn->attempt++; @@ -279,16 +279,13 @@ static void hci_conn_timeout(struct work_struct *work) { struct hci_conn *conn = container_of(work, struct hci_conn, disc_work.work); - struct hci_dev *hdev = conn->hdev; __u8 reason; - BT_DBG("conn %p state %d", conn, conn->state); + BT_DBG("conn %p state %s", conn, state_to_string(conn->state)); if (atomic_read(&conn->refcnt)) return; - hci_dev_lock(hdev); - switch (conn->state) { case BT_CONNECT: case BT_CONNECT2: @@ -308,8 +305,6 @@ static void hci_conn_timeout(struct work_struct *work) conn->state = BT_CLOSED; break; } - - hci_dev_unlock(hdev); } /* Enter sniff mode */ @@ -337,7 +332,7 @@ static void hci_conn_enter_sniff_mode(struct hci_conn *conn) hci_send_cmd(hdev, HCI_OP_SNIFF_SUBRATE, sizeof(cp), &cp); } - if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) { + if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags)) { struct hci_cp_sniff_mode cp; cp.handle = cpu_to_le16(conn->handle); cp.max_interval = cpu_to_le16(hdev->sniff_max_interval); @@ -372,7 +367,7 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst) BT_DBG("%s dst %s", hdev->name, batostr(dst)); - conn = kzalloc(sizeof(struct hci_conn), GFP_ATOMIC); + conn = kzalloc(sizeof(struct hci_conn), GFP_KERNEL); if (!conn) return NULL; @@ -386,7 +381,7 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst) conn->remote_auth = 0xff; conn->key_type = 0xff; - conn->power_save = 1; + set_bit(HCI_CONN_POWER_SAVE, &conn->flags); conn->disc_timeout = HCI_DISCONN_TIMEOUT; switch (type) { @@ -407,7 +402,7 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst) skb_queue_head_init(&conn->data_q); - INIT_LIST_HEAD(&conn->chan_list);; + INIT_LIST_HEAD(&conn->chan_list); INIT_DELAYED_WORK(&conn->disc_work, hci_conn_timeout); setup_timer(&conn->idle_timer, hci_conn_idle, (unsigned long)conn); @@ -555,7 +550,7 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 if (!acl) { acl = hci_conn_add(hdev, ACL_LINK, dst); if (!acl) - return NULL; + return ERR_PTR(-ENOMEM); } hci_conn_hold(acl); @@ -575,7 +570,7 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sco = hci_conn_add(hdev, type, dst); if (!sco) { hci_conn_put(acl); - return NULL; + return ERR_PTR(-ENOMEM); } } @@ -586,12 +581,12 @@ struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 if (acl->state == BT_CONNECTED && (sco->state == BT_OPEN || sco->state == BT_CLOSED)) { - acl->power_save = 1; + set_bit(HCI_CONN_POWER_SAVE, &acl->flags); hci_conn_enter_active_mode(acl, BT_POWER_FORCE_ACTIVE_ON); - if (test_bit(HCI_CONN_MODE_CHANGE_PEND, &acl->pend)) { + if (test_bit(HCI_CONN_MODE_CHANGE_PEND, &acl->flags)) { /* defer SCO setup until mode change completed */ - set_bit(HCI_CONN_SCO_SETUP_PEND, &acl->pend); + set_bit(HCI_CONN_SCO_SETUP_PEND, &acl->flags); return sco; } @@ -607,8 +602,7 @@ int hci_conn_check_link_mode(struct hci_conn *conn) { BT_DBG("conn %p", conn); - if (conn->ssp_mode > 0 && conn->hdev->ssp_mode > 0 && - !(conn->link_mode & HCI_LM_ENCRYPT)) + if (hci_conn_ssp_enabled(conn) && !(conn->link_mode & HCI_LM_ENCRYPT)) return 0; return 1; @@ -633,13 +627,17 @@ static int hci_conn_auth(struct hci_conn *conn, __u8 sec_level, __u8 auth_type) conn->auth_type = auth_type; - if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) { + if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) { struct hci_cp_auth_requested cp; + + /* encrypt must be pending if auth is also pending */ + set_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags); + cp.handle = cpu_to_le16(conn->handle); hci_send_cmd(conn->hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp); if (conn->key_type != 0xff) - set_bit(HCI_CONN_REAUTH_PEND, &conn->pend); + set_bit(HCI_CONN_REAUTH_PEND, &conn->flags); } return 0; @@ -650,7 +648,7 @@ static void hci_conn_encrypt(struct hci_conn *conn) { BT_DBG("conn %p", conn); - if (!test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) { + if (!test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) { struct hci_cp_set_conn_encrypt cp; cp.handle = cpu_to_le16(conn->handle); cp.encrypt = 0x01; @@ -670,8 +668,7 @@ int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type) /* For non 2.1 devices and low security level we don't need the link key. */ - if (sec_level == BT_SECURITY_LOW && - (!conn->ssp_mode || !conn->hdev->ssp_mode)) + if (sec_level == BT_SECURITY_LOW && !hci_conn_ssp_enabled(conn)) return 1; /* For other security levels we need the link key. */ @@ -700,7 +697,7 @@ int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type) goto encrypt; auth: - if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) + if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) return 0; if (!hci_conn_auth(conn, sec_level, auth_type)) @@ -735,7 +732,7 @@ int hci_conn_change_link_key(struct hci_conn *conn) { BT_DBG("conn %p", conn); - if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) { + if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) { struct hci_cp_change_conn_link_key cp; cp.handle = cpu_to_le16(conn->handle); hci_send_cmd(conn->hdev, HCI_OP_CHANGE_CONN_LINK_KEY, @@ -754,7 +751,7 @@ int hci_conn_switch_role(struct hci_conn *conn, __u8 role) if (!role && conn->link_mode & HCI_LM_MASTER) return 1; - if (!test_and_set_bit(HCI_CONN_RSWITCH_PEND, &conn->pend)) { + if (!test_and_set_bit(HCI_CONN_RSWITCH_PEND, &conn->flags)) { struct hci_cp_switch_role cp; bacpy(&cp.bdaddr, &conn->dst); cp.role = role; @@ -778,10 +775,10 @@ void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active) if (conn->mode != HCI_CM_SNIFF) goto timer; - if (!conn->power_save && !force_active) + if (!test_bit(HCI_CONN_POWER_SAVE, &conn->flags) && !force_active) goto timer; - if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) { + if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags)) { struct hci_cp_exit_sniff_mode cp; cp.handle = cpu_to_le16(conn->handle); hci_send_cmd(hdev, HCI_OP_EXIT_SNIFF_MODE, sizeof(cp), &cp); @@ -797,11 +794,11 @@ timer: void hci_conn_hash_flush(struct hci_dev *hdev) { struct hci_conn_hash *h = &hdev->conn_hash; - struct hci_conn *c; + struct hci_conn *c, *n; BT_DBG("hdev %s", hdev->name); - list_for_each_entry_rcu(c, &h->list, list) { + list_for_each_entry_safe(c, n, &h->list, list) { c->state = BT_CLOSED; hci_proto_disconn_cfm(c, HCI_ERROR_LOCAL_HOST_TERM); @@ -946,7 +943,7 @@ struct hci_chan *hci_chan_create(struct hci_conn *conn) BT_DBG("%s conn %p", hdev->name, conn); - chan = kzalloc(sizeof(struct hci_chan), GFP_ATOMIC); + chan = kzalloc(sizeof(struct hci_chan), GFP_KERNEL); if (!chan) return NULL; @@ -977,10 +974,10 @@ int hci_chan_del(struct hci_chan *chan) void hci_chan_list_flush(struct hci_conn *conn) { - struct hci_chan *chan; + struct hci_chan *chan, *n; BT_DBG("conn %p", conn); - list_for_each_entry_rcu(chan, &conn->chan_list, list) + list_for_each_entry_safe(chan, n, &conn->chan_list, list) hci_chan_del(chan); } |