From 40bef302f6323d1ee6fb3dc0e62edb0f446d0339 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Wed, 16 Jul 2014 11:42:27 +0300 Subject: Bluetooth: Convert HCI_CONN_MASTER flag to a conn->role variable Having a dedicated u8 role variable in the hci_conn struct greatly simplifies tracking of the role, since this is the native way that it's represented on the HCI level. Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- include/net/bluetooth/hci_core.h | 2 +- net/bluetooth/hci_conn.c | 13 ++++++------- net/bluetooth/hci_event.c | 27 +++++++++------------------ net/bluetooth/l2cap_core.c | 4 ++-- net/bluetooth/smp.c | 12 ++++++------ 5 files changed, 24 insertions(+), 34 deletions(-) diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index b52c2ef3f56d..e335c5fd8824 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -371,6 +371,7 @@ struct hci_conn { __u16 state; __u8 mode; __u8 type; + __u8 role; bool out; __u8 attempt; __u8 dev_class[3]; @@ -540,7 +541,6 @@ enum { HCI_CONN_POWER_SAVE, HCI_CONN_REMOTE_OOB, HCI_CONN_FLUSH_KEY, - HCI_CONN_MASTER, HCI_CONN_ENCRYPT, HCI_CONN_AUTH, HCI_CONN_SECURE, diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index 490ee8846d9e..6c1c5048984c 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; @@ -786,8 +785,8 @@ 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); + conn->out = true; + conn->role = HCI_ROLE_MASTER; params = hci_conn_params_lookup(hdev, &conn->dst, conn->dst_type); if (params) { @@ -1076,7 +1075,7 @@ 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 +1150,7 @@ 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)) diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 13f83c48face..3b1d2dadedc8 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); } @@ -1420,8 +1416,8 @@ static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status) if (!conn) { conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr); if (conn) { - conn->out = true; - set_bit(HCI_CONN_MASTER, &conn->flags); + conn->out = true; + conn->role = HCI_ROLE_MASTER; } else BT_ERR("No memory for new connection"); } @@ -2924,12 +2920,8 @@ 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); @@ -4116,10 +4108,9 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) conn->dst_type = ev->bdaddr_type; - if (ev->role == HCI_ROLE_MASTER) { + conn->role = ev->role; + if (conn->role == HCI_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 @@ -4527,7 +4518,7 @@ 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; diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 8538cb07b0c0..ea68d3219b7e 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -1487,7 +1487,7 @@ 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; @@ -5227,7 +5227,7 @@ 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)) diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index 8339d6b0f2b8..78eeb8b5970a 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -445,7 +445,7 @@ 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; @@ -686,7 +686,7 @@ 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)) @@ -755,7 +755,7 @@ 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)); @@ -903,7 +903,7 @@ 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); @@ -961,7 +961,7 @@ 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; @@ -981,7 +981,7 @@ 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); -- cgit v1.2.3