X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=net%2Fbluetooth%2Fhci_conn.c;h=b7c4224f4e7dee01288dd31f4581f7a8821c7a21;hb=9dffe2a32b0deef52605d50527c0d240b15cabf7;hp=f812ed129e589cc1929bdf06830eef5f60243006;hpb=12fe2c588df77d60dfe13b432f95d00f76b8c969;p=safe%2Fjmp%2Flinux-2.6 diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index f812ed1..b7c4224 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -1,4 +1,4 @@ -/* +/* BlueZ - Bluetooth protocol stack for Linux Copyright (C) 2000-2001 Qualcomm Incorporated @@ -12,25 +12,23 @@ OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY - CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES - WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, - COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS + ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, + COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS SOFTWARE IS DISCLAIMED. */ /* Bluetooth HCI connection handling. */ -#include #include #include #include #include -#include #include #include #include @@ -47,12 +45,7 @@ #include #include -#ifndef CONFIG_BT_HCI_CORE_DEBUG -#undef BT_DBG -#define BT_DBG(D...) -#endif - -static void hci_acl_connect(struct hci_conn *conn) +void hci_acl_connect(struct hci_conn *conn) { struct hci_dev *hdev = conn->hdev; struct inquiry_entry *ie; @@ -61,28 +54,50 @@ static void hci_acl_connect(struct hci_conn *conn) BT_DBG("%p", conn); conn->state = BT_CONNECT; - conn->out = 1; + conn->out = 1; + conn->link_mode = HCI_LM_MASTER; + conn->attempt++; + + conn->link_policy = hdev->link_policy; + memset(&cp, 0, sizeof(cp)); bacpy(&cp.bdaddr, &conn->dst); cp.pscan_rep_mode = 0x02; - if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst)) && - inquiry_entry_age(ie) <= INQUIRY_ENTRY_AGE_MAX) { - cp.pscan_rep_mode = ie->data.pscan_rep_mode; - cp.pscan_mode = ie->data.pscan_mode; - cp.clock_offset = ie->data.clock_offset | __cpu_to_le16(0x8000); + if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst))) { + if (inquiry_entry_age(ie) <= INQUIRY_ENTRY_AGE_MAX) { + cp.pscan_rep_mode = ie->data.pscan_rep_mode; + cp.pscan_mode = ie->data.pscan_mode; + cp.clock_offset = ie->data.clock_offset | + cpu_to_le16(0x8000); + } + memcpy(conn->dev_class, ie->data.dev_class, 3); + conn->ssp_mode = ie->data.ssp_mode; } - cp.pkt_type = __cpu_to_le16(hdev->pkt_type & ACL_PTYPE_MASK); + cp.pkt_type = cpu_to_le16(conn->pkt_type); if (lmp_rswitch_capable(hdev) && !(hdev->link_mode & HCI_LM_MASTER)) - cp.role_switch = 0x01; + cp.role_switch = 0x01; else - cp.role_switch = 0x00; - - hci_send_cmd(hdev, OGF_LINK_CTL, OCF_CREATE_CONN, sizeof(cp), &cp); + cp.role_switch = 0x00; + + hci_send_cmd(hdev, HCI_OP_CREATE_CONN, sizeof(cp), &cp); +} + +static void hci_acl_connect_cancel(struct hci_conn *conn) +{ + struct hci_cp_create_conn_cancel cp; + + BT_DBG("%p", conn); + + if (conn->hdev->hci_ver < 2) + return; + + bacpy(&cp.bdaddr, &conn->dst); + hci_send_cmd(conn->hdev, HCI_OP_CREATE_CONN_CANCEL, sizeof(cp), &cp); } void hci_acl_disconn(struct hci_conn *conn, __u8 reason) @@ -93,9 +108,9 @@ void hci_acl_disconn(struct hci_conn *conn, __u8 reason) conn->state = BT_DISCONN; - cp.handle = __cpu_to_le16(conn->handle); + cp.handle = cpu_to_le16(conn->handle); cp.reason = reason; - hci_send_cmd(conn->hdev, OGF_LINK_CTL, OCF_DISCONNECT, sizeof(cp), &cp); + hci_send_cmd(conn->hdev, HCI_OP_DISCONNECT, sizeof(cp), &cp); } void hci_add_sco(struct hci_conn *conn, __u16 handle) @@ -108,16 +123,43 @@ void hci_add_sco(struct hci_conn *conn, __u16 handle) conn->state = BT_CONNECT; conn->out = 1; - cp.pkt_type = __cpu_to_le16(hdev->pkt_type & SCO_PTYPE_MASK); - cp.handle = __cpu_to_le16(handle); + conn->attempt++; + + cp.handle = cpu_to_le16(handle); + cp.pkt_type = cpu_to_le16(conn->pkt_type); + + hci_send_cmd(hdev, HCI_OP_ADD_SCO, sizeof(cp), &cp); +} + +void hci_setup_sync(struct hci_conn *conn, __u16 handle) +{ + struct hci_dev *hdev = conn->hdev; + struct hci_cp_setup_sync_conn cp; + + BT_DBG("%p", conn); + + conn->state = BT_CONNECT; + conn->out = 1; + + conn->attempt++; + + cp.handle = cpu_to_le16(handle); + cp.pkt_type = cpu_to_le16(conn->pkt_type); - hci_send_cmd(hdev, OGF_LINK_CTL, OCF_ADD_SCO, sizeof(cp), &cp); + cp.tx_bandwidth = cpu_to_le32(0x00001f40); + cp.rx_bandwidth = cpu_to_le32(0x00001f40); + cp.max_latency = cpu_to_le16(0xffff); + cp.voice_setting = cpu_to_le16(hdev->voice_setting); + cp.retrans_effort = 0xff; + + hci_send_cmd(hdev, HCI_OP_SETUP_SYNC_CONN, sizeof(cp), &cp); } static void hci_conn_timeout(unsigned long arg) { - struct hci_conn *conn = (void *)arg; - struct hci_dev *hdev = conn->hdev; + struct hci_conn *conn = (void *) arg; + struct hci_dev *hdev = conn->hdev; + __u8 reason; BT_DBG("conn %p state %d", conn, conn->state); @@ -125,19 +167,33 @@ static void hci_conn_timeout(unsigned long arg) return; hci_dev_lock(hdev); - if (conn->state == BT_CONNECTED) - hci_acl_disconn(conn, 0x13); - else + + switch (conn->state) { + case BT_CONNECT: + case BT_CONNECT2: + if (conn->type == ACL_LINK && conn->out) + hci_acl_connect_cancel(conn); + break; + case BT_CONFIG: + case BT_CONNECTED: + reason = hci_proto_disconn_ind(conn); + hci_acl_disconn(conn, reason); + break; + default: conn->state = BT_CLOSED; + break; + } + hci_dev_unlock(hdev); - return; } -static void hci_conn_init_timer(struct hci_conn *conn) +static void hci_conn_idle(unsigned long arg) { - init_timer(&conn->timer); - conn->timer.function = hci_conn_timeout; - conn->timer.data = (unsigned long)conn; + struct hci_conn *conn = (void *) arg; + + BT_DBG("conn %p mode %d", conn, conn->mode); + + hci_conn_enter_sniff_mode(conn); } struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst) @@ -146,17 +202,40 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst) BT_DBG("%s dst %s", hdev->name, batostr(dst)); - if (!(conn = kmalloc(sizeof(struct hci_conn), GFP_ATOMIC))) + conn = kzalloc(sizeof(struct hci_conn), GFP_ATOMIC); + if (!conn) return NULL; - memset(conn, 0, sizeof(struct hci_conn)); bacpy(&conn->dst, dst); - conn->type = type; - conn->hdev = hdev; - conn->state = BT_OPEN; + conn->hdev = hdev; + conn->type = type; + conn->mode = HCI_CM_ACTIVE; + conn->state = BT_OPEN; + conn->auth_type = HCI_AT_GENERAL_BONDING; + + conn->power_save = 1; + conn->disc_timeout = HCI_DISCONN_TIMEOUT; + + switch (type) { + case ACL_LINK: + conn->pkt_type = hdev->pkt_type & ACL_PTYPE_MASK; + break; + case SCO_LINK: + if (lmp_esco_capable(hdev)) + conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) | + (hdev->esco_type & EDR_ESCO_MASK); + else + conn->pkt_type = hdev->pkt_type & SCO_PTYPE_MASK; + break; + case ESCO_LINK: + conn->pkt_type = hdev->esco_type & ~EDR_ESCO_MASK; + break; + } skb_queue_head_init(&conn->data_q); - hci_conn_init_timer(conn); + + setup_timer(&conn->disc_timer, hci_conn_timeout, (unsigned long)conn); + setup_timer(&conn->idle_timer, hci_conn_idle, (unsigned long)conn); atomic_set(&conn->refcnt, 0); @@ -168,6 +247,10 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst) if (hdev->notify) hdev->notify(hdev, HCI_NOTIFY_CONN_ADD); + atomic_set(&conn->devref, 0); + + hci_conn_init_sysfs(conn); + tasklet_enable(&hdev->tx_task); return conn; @@ -179,21 +262,23 @@ int hci_conn_del(struct hci_conn *conn) BT_DBG("%s conn %p handle %d", hdev->name, conn, conn->handle); - hci_conn_del_timer(conn); + del_timer(&conn->idle_timer); - if (conn->type == SCO_LINK) { - struct hci_conn *acl = conn->link; - if (acl) { - acl->link = NULL; - hci_conn_put(acl); - } - } else { + del_timer(&conn->disc_timer); + + if (conn->type == ACL_LINK) { struct hci_conn *sco = conn->link; if (sco) sco->link = NULL; /* Unacked frames */ hdev->acl_cnt += conn->sent; + } else { + struct hci_conn *acl = conn->link; + if (acl) { + acl->link = NULL; + hci_conn_put(acl); + } } tasklet_disable(&hdev->tx_task); @@ -206,9 +291,10 @@ int hci_conn_del(struct hci_conn *conn) skb_queue_purge(&conn->data_q); + hci_conn_put_device(conn); + hci_dev_put(hdev); - kfree(conn); return 0; } @@ -228,7 +314,7 @@ struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src) if (!test_bit(HCI_UP, &d->flags) || test_bit(HCI_RAW, &d->flags)) continue; - /* Simple routing: + /* Simple routing: * No source address - find interface with bdaddr != dst * Source address - find interface with bdaddr == src */ @@ -254,9 +340,10 @@ EXPORT_SYMBOL(hci_get_route); /* Create SCO or ACL connection. * Device _must_ be locked */ -struct hci_conn * hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst) +struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type) { struct hci_conn *acl; + struct hci_conn *sco; BT_DBG("%s dst %s", hdev->name, batostr(dst)); @@ -267,71 +354,103 @@ struct hci_conn * hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst) hci_conn_hold(acl); - if (acl->state == BT_OPEN || acl->state == BT_CLOSED) + if (acl->state == BT_OPEN || acl->state == BT_CLOSED) { + acl->sec_level = sec_level; + acl->auth_type = auth_type; hci_acl_connect(acl); + } - if (type == SCO_LINK) { - struct hci_conn *sco; + if (type == ACL_LINK) + return acl; - if (!(sco = hci_conn_hash_lookup_ba(hdev, SCO_LINK, dst))) { - if (!(sco = hci_conn_add(hdev, SCO_LINK, dst))) { - hci_conn_put(acl); - return NULL; - } + if (!(sco = hci_conn_hash_lookup_ba(hdev, type, dst))) { + if (!(sco = hci_conn_add(hdev, type, dst))) { + hci_conn_put(acl); + return NULL; } - acl->link = sco; - sco->link = acl; + } - hci_conn_hold(sco); + acl->link = sco; + sco->link = acl; - if (acl->state == BT_CONNECTED && - (sco->state == BT_OPEN || sco->state == BT_CLOSED)) - hci_add_sco(sco, acl->handle); + hci_conn_hold(sco); - return sco; - } else { - return acl; + if (acl->state == BT_CONNECTED && + (sco->state == BT_OPEN || sco->state == BT_CLOSED)) { + if (lmp_esco_capable(hdev)) + hci_setup_sync(sco, acl->handle); + else + hci_add_sco(sco, acl->handle); } + + return sco; } EXPORT_SYMBOL(hci_connect); +/* Check link security requirement */ +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)) + return 0; + + return 1; +} +EXPORT_SYMBOL(hci_conn_check_link_mode); + /* Authenticate remote device */ -int hci_conn_auth(struct hci_conn *conn) +static int hci_conn_auth(struct hci_conn *conn, __u8 sec_level, __u8 auth_type) { BT_DBG("conn %p", conn); - if (conn->link_mode & HCI_LM_AUTH) + if (sec_level > conn->sec_level) + conn->sec_level = sec_level; + else if (conn->link_mode & HCI_LM_AUTH) return 1; + conn->auth_type = auth_type; + if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) { struct hci_cp_auth_requested cp; - cp.handle = __cpu_to_le16(conn->handle); - hci_send_cmd(conn->hdev, OGF_LINK_CTL, OCF_AUTH_REQUESTED, sizeof(cp), &cp); + cp.handle = cpu_to_le16(conn->handle); + hci_send_cmd(conn->hdev, HCI_OP_AUTH_REQUESTED, + sizeof(cp), &cp); } + return 0; } -EXPORT_SYMBOL(hci_conn_auth); -/* Enable encryption */ -int hci_conn_encrypt(struct hci_conn *conn) +/* Enable security */ +int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type) { BT_DBG("conn %p", conn); - if (conn->link_mode & HCI_LM_ENCRYPT) + if (sec_level == BT_SECURITY_SDP) + return 1; + + if (sec_level == BT_SECURITY_LOW && + (!conn->ssp_mode || !conn->hdev->ssp_mode)) return 1; + if (conn->link_mode & HCI_LM_ENCRYPT) + return hci_conn_auth(conn, sec_level, auth_type); + if (test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) return 0; - if (hci_conn_auth(conn)) { + if (hci_conn_auth(conn, sec_level, auth_type)) { struct hci_cp_set_conn_encrypt cp; - cp.handle = __cpu_to_le16(conn->handle); - cp.encrypt = 1; - hci_send_cmd(conn->hdev, OGF_LINK_CTL, OCF_SET_CONN_ENCRYPT, sizeof(cp), &cp); + cp.handle = cpu_to_le16(conn->handle); + cp.encrypt = 1; + hci_send_cmd(conn->hdev, HCI_OP_SET_CONN_ENCRYPT, + sizeof(cp), &cp); } + return 0; } -EXPORT_SYMBOL(hci_conn_encrypt); +EXPORT_SYMBOL(hci_conn_security); /* Change link key */ int hci_conn_change_link_key(struct hci_conn *conn) @@ -340,15 +459,17 @@ int hci_conn_change_link_key(struct hci_conn *conn) if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) { struct hci_cp_change_conn_link_key cp; - cp.handle = __cpu_to_le16(conn->handle); - hci_send_cmd(conn->hdev, OGF_LINK_CTL, OCF_CHANGE_CONN_LINK_KEY, sizeof(cp), &cp); + cp.handle = cpu_to_le16(conn->handle); + hci_send_cmd(conn->hdev, HCI_OP_CHANGE_CONN_LINK_KEY, + sizeof(cp), &cp); } + return 0; } EXPORT_SYMBOL(hci_conn_change_link_key); /* Switch role */ -int hci_conn_switch_role(struct hci_conn *conn, uint8_t role) +int hci_conn_switch_role(struct hci_conn *conn, __u8 role) { BT_DBG("conn %p", conn); @@ -359,12 +480,74 @@ int hci_conn_switch_role(struct hci_conn *conn, uint8_t role) struct hci_cp_switch_role cp; bacpy(&cp.bdaddr, &conn->dst); cp.role = role; - hci_send_cmd(conn->hdev, OGF_LINK_POLICY, OCF_SWITCH_ROLE, sizeof(cp), &cp); + hci_send_cmd(conn->hdev, HCI_OP_SWITCH_ROLE, sizeof(cp), &cp); } + return 0; } EXPORT_SYMBOL(hci_conn_switch_role); +/* Enter active mode */ +void hci_conn_enter_active_mode(struct hci_conn *conn) +{ + struct hci_dev *hdev = conn->hdev; + + BT_DBG("conn %p mode %d", conn, conn->mode); + + if (test_bit(HCI_RAW, &hdev->flags)) + return; + + if (conn->mode != HCI_CM_SNIFF || !conn->power_save) + goto timer; + + if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) { + 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); + } + +timer: + if (hdev->idle_timeout > 0) + mod_timer(&conn->idle_timer, + jiffies + msecs_to_jiffies(hdev->idle_timeout)); +} + +/* Enter sniff mode */ +void hci_conn_enter_sniff_mode(struct hci_conn *conn) +{ + struct hci_dev *hdev = conn->hdev; + + BT_DBG("conn %p mode %d", conn, conn->mode); + + if (test_bit(HCI_RAW, &hdev->flags)) + return; + + if (!lmp_sniff_capable(hdev) || !lmp_sniff_capable(conn)) + return; + + if (conn->mode != HCI_CM_ACTIVE || !(conn->link_policy & HCI_LP_SNIFF)) + return; + + if (lmp_sniffsubr_capable(hdev) && lmp_sniffsubr_capable(conn)) { + struct hci_cp_sniff_subrate cp; + cp.handle = cpu_to_le16(conn->handle); + cp.max_latency = cpu_to_le16(0); + cp.min_remote_timeout = cpu_to_le16(0); + cp.min_local_timeout = cpu_to_le16(0); + hci_send_cmd(hdev, HCI_OP_SNIFF_SUBRATE, sizeof(cp), &cp); + } + + if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) { + struct hci_cp_sniff_mode cp; + cp.handle = cpu_to_le16(conn->handle); + cp.max_interval = cpu_to_le16(hdev->sniff_max_interval); + cp.min_interval = cpu_to_le16(hdev->sniff_min_interval); + cp.attempt = cpu_to_le16(4); + cp.timeout = cpu_to_le16(1); + hci_send_cmd(hdev, HCI_OP_SNIFF_MODE, sizeof(cp), &cp); + } +} + /* Drop all connection on the device */ void hci_conn_hash_flush(struct hci_dev *hdev) { @@ -382,11 +565,40 @@ void hci_conn_hash_flush(struct hci_dev *hdev) c->state = BT_CLOSED; - hci_proto_disconn_ind(c, 0x16); + hci_proto_disconn_cfm(c, 0x16); hci_conn_del(c); } } +/* Check pending connect attempts */ +void hci_conn_check_pending(struct hci_dev *hdev) +{ + struct hci_conn *conn; + + BT_DBG("hdev %s", hdev->name); + + hci_dev_lock(hdev); + + conn = hci_conn_hash_lookup_state(hdev, ACL_LINK, BT_CONNECT2); + if (conn) + hci_acl_connect(conn); + + hci_dev_unlock(hdev); +} + +void hci_conn_hold_device(struct hci_conn *conn) +{ + atomic_inc(&conn->devref); +} +EXPORT_SYMBOL(hci_conn_hold_device); + +void hci_conn_put_device(struct hci_conn *conn) +{ + if (atomic_dec_and_test(&conn->devref)) + hci_conn_del_sysfs(conn); +} +EXPORT_SYMBOL(hci_conn_put_device); + int hci_get_conn_list(void __user *arg) { struct hci_conn_list_req req, *cl; @@ -468,3 +680,23 @@ int hci_get_conn_info(struct hci_dev *hdev, void __user *arg) return copy_to_user(ptr, &ci, sizeof(ci)) ? -EFAULT : 0; } + +int hci_get_auth_info(struct hci_dev *hdev, void __user *arg) +{ + struct hci_auth_info_req req; + struct hci_conn *conn; + + if (copy_from_user(&req, arg, sizeof(req))) + return -EFAULT; + + hci_dev_lock_bh(hdev); + conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &req.bdaddr); + if (conn) + req.type = conn->auth_type; + hci_dev_unlock_bh(hdev); + + if (!conn) + return -ENOENT; + + return copy_to_user(arg, &req, sizeof(req)) ? -EFAULT : 0; +}