/* * * BlueZ - Bluetooth protocol stack for Linux * * Copyright (C) 2006-2007 Nokia Corporation * Copyright (C) 2004-2008 Marcel Holtmann * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * */ #ifdef HAVE_CONFIG_H #include #endif #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "hcid.h" #include "dbus.h" #include "textfile.h" #include "manager.h" #include "adapter.h" #include "error.h" #include "dbus-helper.h" #include "dbus-common.h" #include "dbus-error.h" #include "dbus-test.h" #include "dbus-service.h" #include "dbus-security.h" #include "dbus-hci.h" static DBusConnection *connection = NULL; void bonding_request_free(struct bonding_request_info *bonding) { if (!bonding) return; if (bonding->rq) dbus_message_unref(bonding->rq); if (bonding->conn) dbus_connection_unref(bonding->conn); if (bonding->io) g_io_channel_unref(bonding->io); g_free(bonding); } int found_device_cmp(const struct remote_dev_info *d1, const struct remote_dev_info *d2) { int ret; if (bacmp(&d2->bdaddr, BDADDR_ANY)) { ret = bacmp(&d1->bdaddr, &d2->bdaddr); if (ret) return ret; } if (d2->name_status != NAME_ANY) { ret = (d1->name_status - d2->name_status); if (ret) return ret; } return 0; } int dev_rssi_cmp(struct remote_dev_info *d1, struct remote_dev_info *d2) { int rssi1, rssi2; rssi1 = d1->rssi < 0 ? -d1->rssi : d1->rssi; rssi2 = d2->rssi < 0 ? -d2->rssi : d2->rssi; return rssi1 - rssi2; } int found_device_add(GSList **list, bdaddr_t *bdaddr, int8_t rssi, name_status_t name_status) { struct remote_dev_info *dev, match; GSList *l; memset(&match, 0, sizeof(struct remote_dev_info)); bacpy(&match.bdaddr, bdaddr); match.name_status = NAME_ANY; /* ignore repeated entries */ l = g_slist_find_custom(*list, &match, (GCompareFunc) found_device_cmp); if (l) { /* device found, update the attributes */ dev = l->data; if (rssi != 0) dev->rssi = rssi; /* Get remote name can be received while inquiring. * Keep in mind that multiple inquiry result events can * be received from the same remote device. */ if (name_status != NAME_NOT_REQUIRED) dev->name_status = name_status; *list = g_slist_sort(*list, (GCompareFunc) dev_rssi_cmp); return -EALREADY; } dev = g_new0(struct remote_dev_info, 1); bacpy(&dev->bdaddr, bdaddr); dev->rssi = rssi; dev->name_status = name_status; *list = g_slist_insert_sorted(*list, dev, (GCompareFunc) dev_rssi_cmp); return 0; } static int found_device_remove(GSList **list, bdaddr_t *bdaddr) { struct remote_dev_info *dev, match; GSList *l; memset(&match, 0, sizeof(struct remote_dev_info)); bacpy(&match.bdaddr, bdaddr); l = g_slist_find_custom(*list, &match, (GCompareFunc) found_device_cmp); if (!l) return -1; dev = l->data; *list = g_slist_remove(*list, dev); g_free(dev); return 0; } int active_conn_find_by_bdaddr(const void *data, const void *user_data) { const struct active_conn_info *con = data; const bdaddr_t *bdaddr = user_data; return bacmp(&con->bdaddr, bdaddr); } static int active_conn_find_by_handle(const void *data, const void *user_data) { const struct active_conn_info *dev = data; const uint16_t *handle = user_data; if (dev->handle == *handle) return 0; return -1; } static int active_conn_append(GSList **list, bdaddr_t *bdaddr, uint16_t handle) { struct active_conn_info *dev; dev = g_new0(struct active_conn_info, 1); bacpy(&dev->bdaddr, bdaddr); dev->handle = handle; *list = g_slist_append(*list, dev); return 0; } DBusMessage *new_authentication_return(DBusMessage *msg, uint8_t status) { switch (status) { case 0x00: /* success */ return dbus_message_new_method_return(msg); case 0x04: /* page timeout */ case 0x08: /* connection timeout */ case 0x10: /* connection accept timeout */ case 0x22: /* LMP response timeout */ case 0x28: /* instant passed - is this a timeout? */ return dbus_message_new_error(msg, ERROR_INTERFACE ".AuthenticationTimeout", "Authentication Timeout"); case 0x17: /* too frequent pairing attempts */ return dbus_message_new_error(msg, ERROR_INTERFACE ".RepeatedAttempts", "Repeated Attempts"); case 0x06: case 0x18: /* pairing not allowed (e.g. gw rejected attempt) */ return dbus_message_new_error(msg, ERROR_INTERFACE ".AuthenticationRejected", "Authentication Rejected"); case 0x07: /* memory capacity */ case 0x09: /* connection limit */ case 0x0a: /* synchronous connection limit */ case 0x0d: /* limited resources */ case 0x14: /* terminated due to low resources */ return dbus_message_new_error(msg, ERROR_INTERFACE ".AuthenticationCanceled", "Authentication Canceled"); case 0x05: /* authentication failure */ case 0x0E: /* rejected due to security reasons - is this auth failure? */ case 0x25: /* encryption mode not acceptable - is this auth failure? */ case 0x26: /* link key cannot be changed - is this auth failure? */ case 0x29: /* pairing with unit key unsupported - is this auth failure? */ case 0x2f: /* insufficient security - is this auth failure? */ default: return dbus_message_new_error(msg, ERROR_INTERFACE ".AuthenticationFailed", "Authentication Failed"); } } static dbus_bool_t send_adapter_signal(DBusConnection *conn, int devid, const char *name, int first, ...) { va_list var_args; dbus_bool_t ret; char path[MAX_PATH_LENGTH]; snprintf(path, sizeof(path)-1, "%s/hci%d", BASE_PATH, devid); va_start(var_args, first); ret = dbus_connection_emit_signal_valist(conn, path, ADAPTER_INTERFACE, name, first, var_args); va_end(var_args); return ret; } static void adapter_mode_changed(struct adapter *adapter, const char *path, uint8_t scan_enable) { const char *mode; adapter->scan_enable = scan_enable; switch (scan_enable) { case SCAN_DISABLED: mode = "off"; adapter->mode = MODE_OFF; break; case SCAN_PAGE: mode = "connectable"; adapter->mode = MODE_CONNECTABLE; break; case (SCAN_PAGE | SCAN_INQUIRY): if (adapter->discov_timeout != 0) adapter->timeout_id = g_timeout_add(adapter->discov_timeout * 1000, discov_timeout_handler, adapter); if (adapter->mode == MODE_LIMITED) { mode = "limited"; } else { adapter->mode = MODE_DISCOVERABLE; mode = "discoverable"; } break; case SCAN_INQUIRY: /* Address the scenario where another app changed the scan mode */ if (adapter->discov_timeout != 0) adapter->timeout_id = g_timeout_add(adapter->discov_timeout * 1000, discov_timeout_handler, adapter); /* ignore, this event should not be sent*/ default: /* ignore, reserved */ return; } dbus_connection_emit_signal(connection, path, ADAPTER_INTERFACE, "ModeChanged", DBUS_TYPE_STRING, &mode, DBUS_TYPE_INVALID); } /* * HCI D-Bus services */ static void reply_pending_requests(const char *path, struct adapter *adapter) { if (!path || !adapter) return; /* pending bonding */ if (adapter->bonding) { error_authentication_canceled(connection, adapter->bonding->rq); name_listener_remove(connection, dbus_message_get_sender(adapter->bonding->rq), (name_cb_t) create_bond_req_exit, adapter); if (adapter->bonding->io_id) g_source_remove(adapter->bonding->io_id); g_io_channel_close(adapter->bonding->io); bonding_request_free(adapter->bonding); adapter->bonding = NULL; } /* If there is a pending reply for discovery cancel */ if (adapter->discovery_cancel) { DBusMessage *reply; reply = dbus_message_new_method_return(adapter->discovery_cancel); send_message_and_unref(connection, reply); dbus_message_unref(adapter->discovery_cancel); adapter->discovery_cancel = NULL; } if (adapter->discov_active) { /* Send discovery completed signal if there isn't name * to resolve */ dbus_connection_emit_signal(connection, path, ADAPTER_INTERFACE, "DiscoveryCompleted", DBUS_TYPE_INVALID); /* Cancel inquiry initiated by D-Bus client */ if (adapter->discov_requestor) cancel_discovery(adapter); } if (adapter->pdiscov_active) { /* Send periodic discovery stopped signal exit or stop * the device */ dbus_connection_emit_signal(connection, path, ADAPTER_INTERFACE, "PeriodicDiscoveryStopped", DBUS_TYPE_INVALID); /* Stop periodic inquiry initiated by D-Bus client */ if (adapter->pdiscov_requestor) cancel_periodic_discovery(adapter); } } int unregister_adapter_path(const char *path) { struct adapter *adapter = NULL; info("Unregister path: %s", path); dbus_connection_get_object_user_data(connection, path, (void *) &adapter); if (!adapter) goto unreg; /* check pending requests */ reply_pending_requests(path, adapter); cancel_passkey_agent_requests(adapter->passkey_agents, path, NULL); release_passkey_agents(adapter, NULL); if (adapter->discov_requestor) { name_listener_remove(connection, adapter->discov_requestor, (name_cb_t) discover_devices_req_exit, adapter); g_free(adapter->discov_requestor); adapter->discov_requestor = NULL; } if (adapter->pdiscov_requestor) { name_listener_remove(connection, adapter->pdiscov_requestor, (name_cb_t) periodic_discover_req_exit, adapter); g_free(adapter->pdiscov_requestor); adapter->pdiscov_requestor = NULL; } if (adapter->found_devices) { g_slist_foreach(adapter->found_devices, (GFunc) g_free, NULL); g_slist_free(adapter->found_devices); adapter->found_devices = NULL; } if (adapter->oor_devices) { g_slist_foreach(adapter->oor_devices, (GFunc) free, NULL); g_slist_free(adapter->oor_devices); adapter->oor_devices = NULL; } if (adapter->pin_reqs) { g_slist_foreach(adapter->pin_reqs, (GFunc) g_free, NULL); g_slist_free(adapter->pin_reqs); adapter->pin_reqs = NULL; } if (adapter->active_conn) { g_slist_foreach(adapter->active_conn, (GFunc) free, NULL); g_slist_free(adapter->active_conn); adapter->active_conn = NULL; } /* Check if there is a pending RemoteDeviceDisconnect request */ if (adapter->pending_dc) { error_no_such_adapter(adapter->pending_dc->conn, adapter->pending_dc->msg); g_source_remove(adapter->pending_dc->timeout_id); dc_pending_timeout_cleanup(adapter); } g_free(adapter); unreg: if (!dbus_connection_destroy_object_path(connection, path)) { error("D-Bus failed to unregister %s object", path); return -1; } return 0; } /***************************************************************** * * Section reserved to HCI commands confirmation handling and low * level events(eg: device attached/dettached. * *****************************************************************/ int hcid_dbus_register_device(uint16_t id) { char path[MAX_PATH_LENGTH]; char *pptr = path; struct adapter *adapter; snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, id); adapter = g_try_new0(struct adapter, 1); if (!adapter) { error("Failed to alloc memory to D-Bus path register data (%s)", path); return -1; } adapter->dev_id = id; adapter->pdiscov_resolve_names = 1; if (!dbus_connection_create_object_path(connection, path, adapter, NULL)) { error("D-Bus failed to register %s object", path); g_free(adapter); return -1; } if (!adapter_init(connection, path)) { error("Adapter interface init failed"); goto failed; } if (!security_init(connection, path)) { error("Security interface init failed"); goto failed; } if (!test_init(connection, path)) { error("Test interface init failed"); goto failed; } /* * Send the adapter added signal */ dbus_connection_emit_signal(connection, BASE_PATH, MANAGER_INTERFACE, "AdapterAdded", DBUS_TYPE_STRING, &pptr, DBUS_TYPE_INVALID); return 0; failed: dbus_connection_destroy_object_path(connection, path); g_free(adapter); return -1; } int hcid_dbus_unregister_device(uint16_t id) { char path[MAX_PATH_LENGTH]; char *pptr = path; int ret; snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, id); dbus_connection_emit_signal(connection, BASE_PATH, MANAGER_INTERFACE, "AdapterRemoved", DBUS_TYPE_STRING, &pptr, DBUS_TYPE_INVALID); ret = unregister_adapter_path(path); if (ret == 0 && (get_default_adapter() == id || get_default_adapter() < 0)) { int new_default = hci_get_route(NULL); set_default_adapter(new_default); if (new_default >= 0) { snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, new_default); dbus_connection_emit_signal(connection, BASE_PATH, MANAGER_INTERFACE, "DefaultAdapterChanged", DBUS_TYPE_STRING, &pptr, DBUS_TYPE_INVALID); } else { *path = '\0'; dbus_connection_emit_signal(connection, BASE_PATH, MANAGER_INTERFACE, "DefaultAdapterChanged", DBUS_TYPE_STRING, &pptr, DBUS_TYPE_INVALID); } } return ret; } int hcid_dbus_start_device(uint16_t id) { char path[MAX_PATH_LENGTH], *pptr; struct hci_dev_info di; struct adapter* adapter; struct hci_conn_list_req *cl = NULL; struct hci_conn_info *ci; const char *mode; int i, err, dd = -1, ret = -1; snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, id); if (hci_devinfo(id, &di) < 0) { error("Getting device info failed: hci%d", id); return -1; } if (hci_test_bit(HCI_RAW, &di.flags)) return -1; if (!dbus_connection_get_object_user_data(connection, path, (void *) &adapter)) { error("Getting %s path data failed!", path); return -1; } if (hci_test_bit(HCI_INQUIRY, &di.flags)) adapter->discov_active = 1; else adapter->discov_active = 0; adapter->up = 1; adapter->discov_timeout = get_discoverable_timeout(id); adapter->discov_type = DISCOVER_TYPE_NONE; dd = hci_open_dev(id); if (dd < 0) goto failed; adapter->scan_enable = get_startup_scan(id); hci_send_cmd(dd, OGF_HOST_CTL, OCF_WRITE_SCAN_ENABLE, 1, &adapter->scan_enable); /* * Get the adapter Bluetooth address */ err = get_device_address(adapter->dev_id, adapter->address, sizeof(adapter->address)); if (err < 0) goto failed; err = get_device_class(adapter->dev_id, adapter->class); if (err < 0) goto failed; adapter->mode = get_startup_mode(id); if (adapter->mode == MODE_LIMITED) set_limited_discoverable(dd, adapter->class, TRUE); /* * retrieve the active connections: address the scenario where * the are active connections before the daemon've started */ cl = g_malloc0(10 * sizeof(*ci) + sizeof(*cl)); cl->dev_id = id; cl->conn_num = 10; ci = cl->conn_info; if (ioctl(dd, HCIGETCONNLIST, cl) < 0) goto failed; for (i = 0; i < cl->conn_num; i++, ci++) active_conn_append(&adapter->active_conn, &ci->bdaddr, ci->handle); ret = 0; mode = mode2str(adapter->mode); dbus_connection_emit_signal(connection, path, ADAPTER_INTERFACE, "ModeChanged", DBUS_TYPE_STRING, &mode, DBUS_TYPE_INVALID); if (get_default_adapter() < 0) { set_default_adapter(id); pptr = path; dbus_connection_emit_signal(connection, BASE_PATH, MANAGER_INTERFACE, "DefaultAdapterChanged", DBUS_TYPE_STRING, &pptr, DBUS_TYPE_INVALID); } failed: if (dd >= 0) hci_close_dev(dd); g_free(cl); return ret; } static void send_dc_signal(struct active_conn_info *dev, const char *path) { char addr[18]; const char *paddr = addr; ba2str(&dev->bdaddr, addr); dbus_connection_emit_signal(connection, path, ADAPTER_INTERFACE, "RemoteDeviceDisconnected", DBUS_TYPE_STRING, &paddr, DBUS_TYPE_INVALID); } int hcid_dbus_stop_device(uint16_t id) { char path[MAX_PATH_LENGTH]; struct adapter *adapter; const char *mode = "off"; snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, id); if (!dbus_connection_get_object_user_data(connection, path, (void *) &adapter)) { error("Getting %s path data failed!", path); return -1; } /* cancel pending timeout */ if (adapter->timeout_id) { g_source_remove(adapter->timeout_id); adapter->timeout_id = 0; } /* check pending requests */ reply_pending_requests(path, adapter); cancel_passkey_agent_requests(adapter->passkey_agents, path, NULL); release_passkey_agents(adapter, NULL); if (adapter->discov_requestor) { name_listener_remove(connection, adapter->discov_requestor, (name_cb_t) discover_devices_req_exit, adapter); g_free(adapter->discov_requestor); adapter->discov_requestor = NULL; } if (adapter->pdiscov_requestor) { name_listener_remove(connection, adapter->pdiscov_requestor, (name_cb_t) periodic_discover_req_exit, adapter); g_free(adapter->pdiscov_requestor); adapter->pdiscov_requestor = NULL; } if (adapter->found_devices) { g_slist_foreach(adapter->found_devices, (GFunc) g_free, NULL); g_slist_free(adapter->found_devices); adapter->found_devices = NULL; } if (adapter->oor_devices) { g_slist_foreach(adapter->oor_devices, (GFunc) free, NULL); g_slist_free(adapter->oor_devices); adapter->oor_devices = NULL; } if (adapter->pin_reqs) { g_slist_foreach(adapter->pin_reqs, (GFunc) g_free, NULL); g_slist_free(adapter->pin_reqs); adapter->pin_reqs = NULL; } if (adapter->active_conn) { g_slist_foreach(adapter->active_conn, (GFunc) send_dc_signal, path); g_slist_foreach(adapter->active_conn, (GFunc) g_free, NULL); g_slist_free(adapter->active_conn); adapter->active_conn = NULL; } send_adapter_signal(connection, adapter->dev_id, "ModeChanged", DBUS_TYPE_STRING, &mode, DBUS_TYPE_INVALID); adapter->up = 0; adapter->scan_enable = SCAN_DISABLED; adapter->mode = MODE_OFF; adapter->discov_active = 0; adapter->pdiscov_active = 0; adapter->pinq_idle = 0; adapter->discov_type = DISCOVER_TYPE_NONE; return 0; } int pin_req_cmp(const void *p1, const void *p2) { const struct pending_pin_info *pb1 = p1; const struct pending_pin_info *pb2 = p2; return p2 ? bacmp(&pb1->bdaddr, &pb2->bdaddr) : -1; } void hcid_dbus_pending_pin_req_add(bdaddr_t *sba, bdaddr_t *dba) { char path[MAX_PATH_LENGTH], addr[18]; struct adapter *adapter; struct pending_pin_info *info; int id; ba2str(sba, addr); id = hci_devid(addr); if (id < 0) { error("No matching device id for %s", addr); return; } snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, id); if (!dbus_connection_get_object_user_data(connection, path, (void *) &adapter)) { error("Getting %s path data failed!", path); return; } info = g_new0(struct pending_pin_info, 1); bacpy(&info->bdaddr, dba); adapter->pin_reqs = g_slist_append(adapter->pin_reqs, info); if (adapter->bonding && !bacmp(dba, &adapter->bonding->bdaddr)) adapter->bonding->auth_active = 1; } int hcid_dbus_request_pin(int dev, bdaddr_t *sba, struct hci_conn_info *ci) { char path[MAX_PATH_LENGTH], addr[18]; int id; ba2str(sba, addr); id = hci_devid(addr); if (id < 0) { error("No matching device id for %s", addr); return -1; } snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, id); return handle_passkey_request(connection, dev, path, sba, &ci->bdaddr); } int hcid_dbus_confirm_pin(int dev, bdaddr_t *sba, struct hci_conn_info *ci, char *pin) { char path[MAX_PATH_LENGTH], addr[18]; int id; ba2str(sba, addr); id = hci_devid(addr); if (id < 0) { error("No matching device id for %s", addr); return -1; } snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, id); return handle_confirm_request(connection, dev, path, sba, &ci->bdaddr, pin); } void hcid_dbus_bonding_process_complete(bdaddr_t *local, bdaddr_t *peer, uint8_t status) { struct adapter *adapter; char path[MAX_PATH_LENGTH], local_addr[18], peer_addr[18]; const char *paddr = peer_addr; GSList *l; int id; ba2str(local, local_addr); ba2str(peer, peer_addr); id = hci_devid(local_addr); if (id < 0) { error("No matching device id for %s", local_addr); return; } snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, id); /* create the authentication reply */ if (!dbus_connection_get_object_user_data(connection, path, (void *) &adapter)) { error("Getting %s path data failed!", path); return; } if (status) cancel_passkey_agent_requests(adapter->passkey_agents, path, peer); l = g_slist_find_custom(adapter->pin_reqs, peer, pin_req_cmp); if (l) { void *d = l->data; adapter->pin_reqs = g_slist_remove(adapter->pin_reqs, l->data); g_free(d); if (!status) send_adapter_signal(connection, adapter->dev_id, "BondingCreated", DBUS_TYPE_STRING, &paddr, DBUS_TYPE_INVALID); } release_passkey_agents(adapter, peer); if (!adapter->bonding || bacmp(&adapter->bonding->bdaddr, peer)) return; /* skip: no bonding req pending */ if (adapter->bonding->cancel) { /* reply authentication canceled */ error_authentication_canceled(connection, adapter->bonding->rq); } else { DBusMessage *reply; /* reply authentication success or an error */ reply = new_authentication_return(adapter->bonding->rq, status); send_message_and_unref(connection, reply); } name_listener_remove(connection, dbus_message_get_sender(adapter->bonding->rq), (name_cb_t) create_bond_req_exit, adapter); if (adapter->bonding->io_id) g_source_remove(adapter->bonding->io_id); g_io_channel_close(adapter->bonding->io); bonding_request_free(adapter->bonding); adapter->bonding = NULL; } void hcid_dbus_inquiry_start(bdaddr_t *local) { struct adapter *adapter; char path[MAX_PATH_LENGTH], local_addr[18]; int id; ba2str(local, local_addr); id = hci_devid(local_addr); if (id < 0) { error("No matching device id for %s", local_addr); return; } snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, id); if (dbus_connection_get_object_user_data(connection, path, (void *) &adapter)) { adapter->discov_active = 1; /* * Cancel pending remote name request and clean the device list * when inquiry is supported in periodic inquiry idle state. */ if (adapter->pdiscov_active) pending_remote_name_cancel(adapter); /* Disable name resolution for non D-Bus clients */ if (!adapter->discov_requestor) adapter->discov_type &= ~RESOLVE_NAME; } send_adapter_signal(connection, adapter->dev_id, "DiscoveryStarted", DBUS_TYPE_INVALID); } int found_device_req_name(struct adapter *adapter) { struct hci_request rq; evt_cmd_status rp; remote_name_req_cp cp; struct remote_dev_info match; GSList *l; int dd, req_sent = 0; /* get the next remote address */ if (!adapter->found_devices) return -ENODATA; memset(&match, 0, sizeof(struct remote_dev_info)); bacpy(&match.bdaddr, BDADDR_ANY); match.name_status = NAME_REQUIRED; l = g_slist_find_custom(adapter->found_devices, &match, (GCompareFunc) found_device_cmp); if (!l) return -ENODATA; dd = hci_open_dev(adapter->dev_id); if (dd < 0) return -errno; memset(&rq, 0, sizeof(rq)); rq.ogf = OGF_LINK_CTL; rq.ocf = OCF_REMOTE_NAME_REQ; rq.cparam = &cp; rq.clen = REMOTE_NAME_REQ_CP_SIZE; rq.rparam = &rp; rq.rlen = EVT_CMD_STATUS_SIZE; rq.event = EVT_CMD_STATUS; /* send at least one request or return failed if the list is empty */ do { struct remote_dev_info *dev = l->data; char peer_addr[18]; const char *signal = NULL, *paddr = peer_addr; /* flag to indicate the current remote name requested */ dev->name_status = NAME_REQUESTED; memset(&rp, 0, sizeof(rp)); memset(&cp, 0, sizeof(cp)); bacpy(&cp.bdaddr, &dev->bdaddr); cp.pscan_rep_mode = 0x02; ba2str(&dev->bdaddr, peer_addr); if (hci_send_req(dd, &rq, 500) < 0) { error("Unable to send the HCI remote name request: %s (%d)", strerror(errno), errno); signal = "RemoteNameFailed"; } if (rp.status) { error("Remote name request failed with status 0x%02x", rp.status); signal = "RemoteNameFailed"; } if (!signal) { req_sent = 1; /* if we are in discovery, inform application of getting name */ if (adapter->discov_type & (STD_INQUIRY | PERIODIC_INQUIRY)) signal = "RemoteNameRequested"; } if (signal) send_adapter_signal(connection, adapter->dev_id, signal, DBUS_TYPE_STRING, &paddr, DBUS_TYPE_INVALID); if (req_sent) break; /* if failed, request the next element */ /* remove the element from the list */ adapter->found_devices = g_slist_remove(adapter->found_devices, dev); g_free(dev); /* get the next element */ l = g_slist_find_custom(adapter->found_devices, &match, (GCompareFunc) found_device_cmp); } while (l); hci_close_dev(dd); if (!req_sent) return -ENODATA; return 0; } static void send_out_of_range(const char *path, GSList *l) { while (l) { const char *peer_addr = l->data; dbus_connection_emit_signal(connection, path, ADAPTER_INTERFACE, "RemoteDeviceDisappeared", DBUS_TYPE_STRING, &peer_addr, DBUS_TYPE_INVALID); l = l->next; } } void hcid_dbus_inquiry_complete(bdaddr_t *local) { struct adapter *adapter; GSList *l; char path[MAX_PATH_LENGTH], local_addr[18]; struct remote_dev_info *dev; bdaddr_t tmp; int id; ba2str(local, local_addr); id = hci_devid(local_addr); if (id < 0) { error("No matching device id for %s", local_addr); return; } snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, id); if (!dbus_connection_get_object_user_data(connection, path, (void *) &adapter)) { error("Getting %s path data failed!", path); goto done; } /* Out of range verification */ if (adapter->pdiscov_active && !adapter->discov_active) { send_out_of_range(path, adapter->oor_devices); g_slist_foreach(adapter->oor_devices, (GFunc) free, NULL); g_slist_free(adapter->oor_devices); adapter->oor_devices = NULL; l = adapter->found_devices; while (l) { dev = l->data; baswap(&tmp, &dev->bdaddr); adapter->oor_devices = g_slist_append(adapter->oor_devices, batostr(&tmp)); l = l->next; } } adapter->pinq_idle = 1; /* * Enable resolution again: standard inquiry can be * received in the periodic inquiry idle state. */ if (adapter->pdiscov_requestor && adapter->pdiscov_resolve_names) adapter->discov_type |= RESOLVE_NAME; /* * The following scenarios can happen: * 1. standard inquiry: always send discovery completed signal * 2. standard inquiry + name resolving: send discovery completed * after name resolving * 3. periodic inquiry: skip discovery completed signal * 4. periodic inquiry + standard inquiry: always send discovery * completed signal * * Keep in mind that non D-Bus requests can arrive. */ if (!found_device_req_name(adapter)) goto done; /* skip - there is name to resolve */ if (adapter->discov_active) { dbus_connection_emit_signal(connection, path, ADAPTER_INTERFACE, "DiscoveryCompleted", DBUS_TYPE_INVALID); adapter->discov_active = 0; } /* free discovered devices list */ g_slist_foreach(adapter->found_devices, (GFunc) g_free, NULL); g_slist_free(adapter->found_devices); adapter->found_devices = NULL; if (adapter->discov_requestor) { name_listener_remove(connection, adapter->discov_requestor, (name_cb_t) discover_devices_req_exit, adapter); g_free(adapter->discov_requestor); adapter->discov_requestor = NULL; /* If there is a pending reply for discovery cancel */ if (adapter->discovery_cancel) { DBusMessage *reply; reply = dbus_message_new_method_return(adapter->discovery_cancel); send_message_and_unref(connection, reply); dbus_message_unref(adapter->discovery_cancel); adapter->discovery_cancel = NULL; } /* reset the discover type for standard inquiry only */ adapter->discov_type &= ~STD_INQUIRY; } done: /* Proceed with any queued up audits */ process_audits_list(path); } void hcid_dbus_periodic_inquiry_start(bdaddr_t *local, uint8_t status) { struct adapter *adapter; char path[MAX_PATH_LENGTH], local_addr[18]; int id; /* Don't send the signal if the cmd failed */ if (status) return; ba2str(local, local_addr); id = hci_devid(local_addr); if (id < 0) { error("No matching device id for %s", local_addr); return; } snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, id); if (dbus_connection_get_object_user_data(connection, path, (void *) &adapter)) { adapter->pdiscov_active = 1; /* Disable name resolution for non D-Bus clients */ if (!adapter->pdiscov_requestor) adapter->discov_type &= ~RESOLVE_NAME; } dbus_connection_emit_signal(connection, path, ADAPTER_INTERFACE, "PeriodicDiscoveryStarted", DBUS_TYPE_INVALID); } void hcid_dbus_periodic_inquiry_exit(bdaddr_t *local, uint8_t status) { struct adapter *adapter; char path[MAX_PATH_LENGTH], local_addr[18]; int id; /* Don't send the signal if the cmd failed */ if (status) return; ba2str(local, local_addr); id = hci_devid(local_addr); if (id < 0) { error("No matching device id for %s", local_addr); return; } snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, id); if (!dbus_connection_get_object_user_data(connection, path, (void *) &adapter)) { error("Getting %s path data failed!", path); return; } /* reset the discover type to be able to handle D-Bus and non D-Bus * requests */ adapter->pdiscov_active = 0; adapter->discov_type &= ~(PERIODIC_INQUIRY | RESOLVE_NAME); /* free discovered devices list */ g_slist_foreach(adapter->found_devices, (GFunc) g_free, NULL); g_slist_free(adapter->found_devices); adapter->found_devices = NULL; /* free out of range devices list */ g_slist_foreach(adapter->oor_devices, (GFunc) free, NULL); g_slist_free(adapter->oor_devices); adapter->oor_devices = NULL; if (adapter->pdiscov_requestor) { name_listener_remove(connection, adapter->pdiscov_requestor, (name_cb_t) periodic_discover_req_exit, adapter); g_free(adapter->pdiscov_requestor); adapter->pdiscov_requestor = NULL; } /* workaround: inquiry completed is not sent when exiting from * periodic inquiry */ if (adapter->discov_active) { dbus_connection_emit_signal(connection, path, ADAPTER_INTERFACE, "DiscoveryCompleted", DBUS_TYPE_INVALID); adapter->discov_active = 0; } /* Send discovery completed signal if there isn't name to resolve */ dbus_connection_emit_signal(connection, path, ADAPTER_INTERFACE, "PeriodicDiscoveryStopped", DBUS_TYPE_INVALID); } static char *extract_eir_name(uint8_t *data, uint8_t *type) { if (!data || !type) return NULL; if (data[0] == 0) return NULL; *type = data[1]; switch (*type) { case 0x08: case 0x09: return strndup((char *) (data + 2), data[0] - 1); } return NULL; } void hcid_dbus_inquiry_result(bdaddr_t *local, bdaddr_t *peer, uint32_t class, int8_t rssi, uint8_t *data) { char filename[PATH_MAX + 1], path[MAX_PATH_LENGTH]; struct adapter *adapter; GSList *l; char local_addr[18], peer_addr[18], *name, *tmp_name; const char *paddr = peer_addr; struct remote_dev_info match; dbus_int16_t tmp_rssi = rssi; uint8_t name_type = 0x00; name_status_t name_status; int id; ba2str(local, local_addr); ba2str(peer, peer_addr); id = hci_devid(local_addr); if (id < 0) { error("No matching device id for %s", local_addr); return; } snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, id); if (!dbus_connection_get_object_user_data(connection, path, (void *) &adapter)) { error("Getting %s path data failed!", path); return; } write_remote_class(local, peer, class); if (data) write_remote_eir(local, peer, data); /* * workaround to identify situation when the daemon started and * a standard inquiry or periodic inquiry was already running */ if (!adapter->discov_active && !adapter->pdiscov_active) adapter->pdiscov_active = 1; /* reset the idle flag when the inquiry complete event arrives */ if (adapter->pdiscov_active) { adapter->pinq_idle = 0; /* Out of range list update */ l = g_slist_find_custom(adapter->oor_devices, peer_addr, (GCompareFunc) strcmp); if (l) { char *dev = l->data; adapter->oor_devices = g_slist_remove(adapter->oor_devices, dev); g_free(dev); } } /* send the device found signal */ dbus_connection_emit_signal(connection, path, ADAPTER_INTERFACE, "RemoteDeviceFound", DBUS_TYPE_STRING, &paddr, DBUS_TYPE_UINT32, &class, DBUS_TYPE_INT16, &tmp_rssi, DBUS_TYPE_INVALID); memset(&match, 0, sizeof(struct remote_dev_info)); bacpy(&match.bdaddr, peer); match.name_status = NAME_SENT; /* if found: don't send the name again */ l = g_slist_find_custom(adapter->found_devices, &match, (GCompareFunc) found_device_cmp); if (l) return; /* the inquiry result can be triggered by NON D-Bus client */ if (adapter->discov_type & RESOLVE_NAME) name_status = NAME_REQUIRED; else name_status = NAME_NOT_REQUIRED; create_name(filename, PATH_MAX, STORAGEDIR, local_addr, "names"); name = textfile_get(filename, peer_addr); tmp_name = extract_eir_name(data, &name_type); if (tmp_name) { if (name_type == 0x09) { write_device_name(local, peer, tmp_name); name_status = NAME_NOT_REQUIRED; if (name) g_free(name); name = tmp_name; } else { if (name) free(tmp_name); else name = tmp_name; } } if (name) { dbus_connection_emit_signal(connection, path, ADAPTER_INTERFACE, "RemoteNameUpdated", DBUS_TYPE_STRING, &paddr, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID); g_free(name); if (name_type != 0x08) name_status = NAME_SENT; } /* add in the list to track name sent/pending */ found_device_add(&adapter->found_devices, peer, rssi, name_status); } void hcid_dbus_remote_class(bdaddr_t *local, bdaddr_t *peer, uint32_t class) { char local_addr[18], peer_addr[18]; const char *paddr = peer_addr; uint32_t old_class = 0; int id; read_remote_class(local, peer, &old_class); if (old_class == class) return; ba2str(local, local_addr); ba2str(peer, peer_addr); id = hci_devid(local_addr); if (id < 0) { error("No matching device id for %s", local_addr); return; } send_adapter_signal(connection, id, "RemoteClassUpdated", DBUS_TYPE_STRING, &paddr, DBUS_TYPE_UINT32, &class, DBUS_TYPE_INVALID); } void hcid_dbus_remote_name(bdaddr_t *local, bdaddr_t *peer, uint8_t status, char *name) { struct adapter *adapter; char path[MAX_PATH_LENGTH], local_addr[18], peer_addr[18]; const char *paddr = peer_addr; int id; ba2str(local, local_addr); ba2str(peer, peer_addr); id = hci_devid(local_addr); if (id < 0) { error("No matching device id for %s", local_addr); return; } snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, id); if (!dbus_connection_get_object_user_data(connection, path, (void *) &adapter)) { error("Getting %s path data failed!", path); return; } if (status) dbus_connection_emit_signal(connection, path, ADAPTER_INTERFACE, "RemoteNameFailed", DBUS_TYPE_STRING, &paddr, DBUS_TYPE_INVALID); else dbus_connection_emit_signal(connection, path, ADAPTER_INTERFACE, "RemoteNameUpdated", DBUS_TYPE_STRING, &paddr, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID); /* remove from remote name request list */ found_device_remove(&adapter->found_devices, peer); /* check if there is more devices to request names */ if (!found_device_req_name(adapter)) return; /* skip if a new request has been sent */ /* free discovered devices list */ g_slist_foreach(adapter->found_devices, (GFunc) g_free, NULL); g_slist_free(adapter->found_devices); adapter->found_devices = NULL; /* The discovery completed signal must be sent only for discover * devices request WITH name resolving */ if (adapter->discov_requestor) { name_listener_remove(connection, adapter->discov_requestor, (name_cb_t) discover_devices_req_exit, adapter); g_free(adapter->discov_requestor); adapter->discov_requestor = NULL; /* If there is a pending reply for discovery cancel */ if (adapter->discovery_cancel) { DBusMessage *reply; reply = dbus_message_new_method_return(adapter->discovery_cancel); send_message_and_unref(connection, reply); dbus_message_unref(adapter->discovery_cancel); adapter->discovery_cancel = NULL; } /* Disable name resolution for non D-Bus clients */ if (!adapter->pdiscov_requestor) adapter->discov_type &= ~RESOLVE_NAME; } if (adapter->discov_active) { dbus_connection_emit_signal(connection, path, ADAPTER_INTERFACE, "DiscoveryCompleted", DBUS_TYPE_INVALID); adapter->discov_active = 0; } } void hcid_dbus_conn_complete(bdaddr_t *local, uint8_t status, uint16_t handle, bdaddr_t *peer) { char path[MAX_PATH_LENGTH], local_addr[18], peer_addr[18]; const char *paddr = peer_addr; struct adapter *adapter; int id; ba2str(local, local_addr); ba2str(peer, peer_addr); id = hci_devid(local_addr); if (id < 0) { error("No matching device id for %s", local_addr); return; } snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, id); if (!dbus_connection_get_object_user_data(connection, path, (void *) &adapter)) { error("Getting %s path data failed!", path); return; } if (status) { GSList *l; cancel_passkey_agent_requests(adapter->passkey_agents, path, peer); release_passkey_agents(adapter, peer); l = g_slist_find_custom(adapter->pin_reqs, peer, pin_req_cmp); if (l) { struct pending_pin_req *p = l->data; adapter->pin_reqs = g_slist_remove(adapter->pin_reqs, p); g_free(p); } if (adapter->bonding) adapter->bonding->hci_status = status; } else { /* Send the remote device connected signal */ dbus_connection_emit_signal(connection, path, ADAPTER_INTERFACE, "RemoteDeviceConnected", DBUS_TYPE_STRING, &paddr, DBUS_TYPE_INVALID); /* add in the active connetions list */ active_conn_append(&adapter->active_conn, peer, handle); } } void hcid_dbus_disconn_complete(bdaddr_t *local, uint8_t status, uint16_t handle, uint8_t reason) { DBusMessage *reply; char path[MAX_PATH_LENGTH], local_addr[18], peer_addr[18]; const char *paddr = peer_addr; struct adapter *adapter; struct active_conn_info *dev; GSList *l; int id; if (status) { error("Disconnection failed: 0x%02x", status); return; } ba2str(local, local_addr); id = hci_devid(local_addr); if (id < 0) { error("No matching device id for %s", local_addr); return; } snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, id); if (!dbus_connection_get_object_user_data(connection, path, (void *) &adapter)) { error("Getting %s path data failed!", path); return; } l = g_slist_find_custom(adapter->active_conn, &handle, active_conn_find_by_handle); if (!l) return; dev = l->data; ba2str(&dev->bdaddr, peer_addr); /* clean pending HCI cmds */ hci_req_queue_remove(adapter->dev_id, &dev->bdaddr); /* Cancel D-Bus/non D-Bus requests */ cancel_passkey_agent_requests(adapter->passkey_agents, path, &dev->bdaddr); release_passkey_agents(adapter, &dev->bdaddr); l = g_slist_find_custom(adapter->pin_reqs, &dev->bdaddr, pin_req_cmp); if (l) { struct pending_pin_req *p = l->data; adapter->pin_reqs = g_slist_remove(adapter->pin_reqs, p); g_free(p); } /* Check if there is a pending CreateBonding request */ if (adapter->bonding && (bacmp(&adapter->bonding->bdaddr, &dev->bdaddr) == 0)) { if (adapter->bonding->cancel) { /* reply authentication canceled */ error_authentication_canceled(connection, adapter->bonding->rq); } else { reply = new_authentication_return(adapter->bonding->rq, HCI_AUTHENTICATION_FAILURE); send_message_and_unref(connection, reply); } name_listener_remove(connection, dbus_message_get_sender(adapter->bonding->rq), (name_cb_t) create_bond_req_exit, adapter); if (adapter->bonding->io_id) g_source_remove(adapter->bonding->io_id); g_io_channel_close(adapter->bonding->io); bonding_request_free(adapter->bonding); adapter->bonding = NULL; } /* Check if there is a pending RemoteDeviceDisconnect request */ if (adapter->pending_dc) { reply = dbus_message_new_method_return(adapter->pending_dc->msg); if (!reply) error("Failed to allocate disconnect reply"); else send_message_and_unref(adapter->pending_dc->conn, reply); g_source_remove(adapter->pending_dc->timeout_id); dc_pending_timeout_cleanup(adapter); } /* Send the remote device disconnected signal */ dbus_connection_emit_signal(connection, path, ADAPTER_INTERFACE, "RemoteDeviceDisconnected", DBUS_TYPE_STRING, &paddr, DBUS_TYPE_INVALID); adapter->active_conn = g_slist_remove(adapter->active_conn, dev); g_free(dev); } int set_limited_discoverable(int dd, const uint8_t *cls, gboolean limited) { uint32_t dev_class; int err; int num = (limited ? 2 : 1); uint8_t lap[] = { 0x33, 0x8b, 0x9e, 0x00, 0x8b, 0x9e }; /* * 1: giac * 2: giac + liac */ if (hci_write_current_iac_lap(dd, num, lap, 1000) < 0) { err = errno; error("Can't write current IAC LAP: %s(%d)", strerror(err), err); return -err; } if (limited) { if (cls[1] & 0x20) return 0; /* Already limited */ dev_class = (cls[2] << 16) | ((cls[1] | 0x20) << 8) | cls[0]; } else { if (!(cls[1] & 0x20)) return 0; /* Already clear */ dev_class = (cls[2] << 16) | ((cls[1] & 0xdf) << 8) | cls[0]; } if (hci_write_class_of_dev(dd, dev_class, 1000) < 0) { err = errno; error("Can't write class of device: %s (%d)", strerror(err), err); return -err; } return 0; } int set_service_classes(int dd, const uint8_t *cls, uint8_t value) { uint32_t dev_class; int err; if (cls[2] == value) return 0; /* Already set */ dev_class = (value << 16) | (cls[1] << 8) | cls[0]; if (hci_write_class_of_dev(dd, dev_class, 1000) < 0) { err = errno; error("Can't write class of device: %s (%d)", strerror(err), err); return -err; } return 0; } gboolean discov_timeout_handler(void *data) { struct adapter *adapter = data; struct hci_request rq; int dd; uint8_t scan_enable = adapter->scan_enable; uint8_t status = 0; gboolean retval = TRUE; scan_enable &= ~SCAN_INQUIRY; dd = hci_open_dev(adapter->dev_id); if (dd < 0) { error("HCI device open failed: hci%d", adapter->dev_id); return TRUE; } memset(&rq, 0, sizeof(rq)); rq.ogf = OGF_HOST_CTL; rq.ocf = OCF_WRITE_SCAN_ENABLE; rq.cparam = &scan_enable; rq.clen = sizeof(scan_enable); rq.rparam = &status; rq.rlen = sizeof(status); rq.event = EVT_CMD_COMPLETE; if (hci_send_req(dd, &rq, 1000) < 0) { error("Sending write scan enable command to hci%d failed: %s (%d)", adapter->dev_id, strerror(errno), errno); goto failed; } if (status) { error("Setting scan enable failed with status 0x%02x", status); goto failed; } set_limited_discoverable(dd, adapter->class, FALSE); adapter->timeout_id = 0; retval = FALSE; failed: if (dd >= 0) hci_close_dev(dd); return retval; } /* Section reserved to device HCI callbacks */ void hcid_dbus_setname_complete(bdaddr_t *local) { int id, dd = -1; read_local_name_rp rp; struct hci_request rq; const char *pname = (char *) rp.name; char local_addr[18], name[249]; ba2str(local, local_addr); id = hci_devid(local_addr); if (id < 0) { error("No matching device id for %s", local_addr); return; } dd = hci_open_dev(id); if (dd < 0) { error("HCI device open failed: hci%d", id); memset(&rp, 0, sizeof(rp)); } else { memset(&rq, 0, sizeof(rq)); rq.ogf = OGF_HOST_CTL; rq.ocf = OCF_READ_LOCAL_NAME; rq.rparam = &rp; rq.rlen = READ_LOCAL_NAME_RP_SIZE; rq.event = EVT_CMD_COMPLETE; if (hci_send_req(dd, &rq, 1000) < 0) { error("Sending getting name command failed: %s (%d)", strerror(errno), errno); rp.name[0] = '\0'; } if (rp.status) { error("Getting name failed with status 0x%02x", rp.status); rp.name[0] = '\0'; } hci_close_dev(dd); } strncpy(name, pname, sizeof(name) - 1); name[248] = '\0'; pname = name; send_adapter_signal(connection, id, "NameChanged", DBUS_TYPE_STRING, &pname, DBUS_TYPE_INVALID); } void hcid_dbus_setscan_enable_complete(bdaddr_t *local) { struct adapter *adapter; char path[MAX_PATH_LENGTH], local_addr[18]; read_scan_enable_rp rp; struct hci_request rq; int id, dd = -1; ba2str(local, local_addr); id = hci_devid(local_addr); if (id < 0) { error("No matching device id for %s", local_addr); return; } snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, id); dd = hci_open_dev(id); if (dd < 0) { error("HCI device open failed: hci%d", id); return; } memset(&rq, 0, sizeof(rq)); rq.ogf = OGF_HOST_CTL; rq.ocf = OCF_READ_SCAN_ENABLE; rq.rparam = &rp; rq.rlen = READ_SCAN_ENABLE_RP_SIZE; rq.event = EVT_CMD_COMPLETE; if (hci_send_req(dd, &rq, 1000) < 0) { error("Sending read scan enable command failed: %s (%d)", strerror(errno), errno); goto failed; } if (rp.status) { error("Getting scan enable failed with status 0x%02x", rp.status); goto failed; } if (!dbus_connection_get_object_user_data(connection, path, (void *) &adapter)) { error("Getting %s path data failed!", path); goto failed; } if (adapter->timeout_id) { g_source_remove(adapter->timeout_id); adapter->timeout_id = 0; } if (adapter->scan_enable != rp.enable) adapter_mode_changed(adapter, path, rp.enable); failed: if (dd >= 0) hci_close_dev(dd); } void hcid_dbus_write_class_complete(bdaddr_t *local) { struct adapter *adapter; char path[MAX_PATH_LENGTH], local_addr[18]; int id, dd; uint8_t cls[3]; ba2str(local, local_addr); id = hci_devid(local_addr); if (id < 0) { error("No matching device id for %s", local_addr); return; } snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, id); if (!dbus_connection_get_object_user_data(connection, path, (void *) &adapter)) { error("Getting %s path data failed!", path); return; } dd = hci_open_dev(id); if (dd < 0) { error("HCI device open failed: hci%d", id); return; } if (hci_read_class_of_dev(dd, cls, 1000) < 0) { error("Can't read class of device on hci%d: %s (%d)", id, strerror(errno), errno); hci_close_dev(dd); return; } write_local_class(local, cls); set_device_class(adapter->dev_id, cls); memcpy(adapter->class, cls, 3); hci_close_dev(dd); } void hcid_dbus_write_simple_pairing_mode_complete(bdaddr_t *local) { char addr[18]; int dev_id, dd; uint8_t mode; ba2str(local, addr); dev_id = hci_devid(addr); if (dev_id < 0) { error("No matching device id for %s", addr); return; } dd = hci_open_dev(dev_id); if (dd < 0) { error("HCI device open failed: hci%d", dev_id); return; } if (hci_read_simple_pairing_mode(dd, &mode, 1000) < 0) { error("Can't read class of device on hci%d: %s(%d)", dev_id, strerror(errno), errno); hci_close_dev(dd); return; } set_simple_pairing_mode(dev_id, mode); hci_close_dev(dd); } void hcid_dbus_pin_code_reply(bdaddr_t *local, void *ptr) { typedef struct { uint8_t status; bdaddr_t bdaddr; } __attribute__ ((packed)) ret_pin_code_req_reply; struct adapter *adapter; ret_pin_code_req_reply *ret = ptr + EVT_CMD_COMPLETE_SIZE; GSList *l; char path[MAX_PATH_LENGTH], local_addr[18]; int id; ba2str(local, local_addr); id = hci_devid(local_addr); if (id < 0) { error("No matching device id for %s", local_addr); return; } snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, id); if (!dbus_connection_get_object_user_data(connection, path, (void *) &adapter)) { error("Getting %s path data failed!", path); return; } l = g_slist_find_custom(adapter->pin_reqs, &ret->bdaddr, pin_req_cmp); if (l) { struct pending_pin_info *p = l->data; p->replied = 1; } } void create_bond_req_exit(const char *name, struct adapter *adapter) { char path[MAX_PATH_LENGTH]; GSList *l; snprintf(path, sizeof(path), "%s/hci%d", BASE_PATH, adapter->dev_id); debug("CreateConnection requestor (%s) exited before bonding was completed", name); cancel_passkey_agent_requests(adapter->passkey_agents, path, &adapter->bonding->bdaddr); release_passkey_agents(adapter, &adapter->bonding->bdaddr); l = g_slist_find_custom(adapter->pin_reqs, &adapter->bonding->bdaddr, pin_req_cmp); if (l) { struct pending_pin_info *p = l->data; if (!p->replied) { int dd; dd = hci_open_dev(adapter->dev_id); if (dd >= 0) { hci_send_cmd(dd, OGF_LINK_CTL, OCF_PIN_CODE_NEG_REPLY, 6, &adapter->bonding->bdaddr); hci_close_dev(dd); } } adapter->pin_reqs = g_slist_remove(adapter->pin_reqs, p); g_free(p); } g_io_channel_close(adapter->bonding->io); if (adapter->bonding->io_id) g_source_remove(adapter->bonding->io_id); bonding_request_free(adapter->bonding); adapter->bonding = NULL; } void discover_devices_req_exit(const char *name, struct adapter *adapter) { debug("DiscoverDevices requestor (%s) exited", name); /* Cleanup the discovered devices list and send the command to cancel * inquiry or cancel remote name request. The return can be ignored. */ cancel_discovery(adapter); } static int inquiry_cancel(int dd, int to) { struct hci_request rq; uint8_t status; memset(&rq, 0, sizeof(rq)); rq.ogf = OGF_LINK_CTL; rq.ocf = OCF_INQUIRY_CANCEL; rq.rparam = &status; rq.rlen = sizeof(status); rq.event = EVT_CMD_COMPLETE; if (hci_send_req(dd, &rq, to) < 0) return -1; if (status) { errno = bt_error(status); return -1; } return 0; } static int remote_name_cancel(int dd, bdaddr_t *dba, int to) { remote_name_req_cancel_cp cp; struct hci_request rq; uint8_t status; memset(&rq, 0, sizeof(rq)); memset(&cp, 0, sizeof(cp)); bacpy(&cp.bdaddr, dba); rq.ogf = OGF_LINK_CTL; rq.ocf = OCF_REMOTE_NAME_REQ_CANCEL; rq.cparam = &cp; rq.clen = REMOTE_NAME_REQ_CANCEL_CP_SIZE; rq.rparam = &status; rq.rlen = sizeof(status); rq.event = EVT_CMD_COMPLETE; if (hci_send_req(dd, &rq, to) < 0) return -1; if (status) { errno = bt_error(status); return -1; } return 0; } int cancel_discovery(struct adapter *adapter) { struct remote_dev_info *dev, match; GSList *l; int dd, err = 0; if (!adapter->discov_active) goto cleanup; dd = hci_open_dev(adapter->dev_id); if (dd < 0) { err = -ENODEV; goto cleanup; } /* * If there is a pending read remote name request means * that the inquiry complete event was already received */ memset(&match, 0, sizeof(struct remote_dev_info)); bacpy(&match.bdaddr, BDADDR_ANY); match.name_status = NAME_REQUESTED; l = g_slist_find_custom(adapter->found_devices, &match, (GCompareFunc) found_device_cmp); if (l) { dev = l->data; if (remote_name_cancel(dd, &dev->bdaddr, 1000) < 0) { error("Read remote name cancel failed: %s, (%d)", strerror(errno), errno); err = -errno; } } else { if (inquiry_cancel(dd, 1000) < 0) { error("Inquiry cancel failed:%s (%d)", strerror(errno), errno); err = -errno; } } hci_close_dev(dd); cleanup: /* * Reset discov_requestor and discover_state in the remote name * request event handler or in the inquiry complete handler. */ g_slist_foreach(adapter->found_devices, (GFunc) g_free, NULL); g_slist_free(adapter->found_devices); adapter->found_devices = NULL; /* Disable name resolution for non D-Bus clients */ if (!adapter->pdiscov_requestor) adapter->discov_type &= ~RESOLVE_NAME; return err; } void periodic_discover_req_exit(const char *name, struct adapter *adapter) { debug("PeriodicDiscovery requestor (%s) exited", name); /* Cleanup the discovered devices list and send the cmd to exit from * periodic inquiry or cancel remote name request. The return value can * be ignored. */ cancel_periodic_discovery(adapter); } static int periodic_inquiry_exit(int dd, int to) { struct hci_request rq; uint8_t status; memset(&rq, 0, sizeof(rq)); rq.ogf = OGF_LINK_CTL; rq.ocf = OCF_EXIT_PERIODIC_INQUIRY; rq.rparam = &status; rq.rlen = sizeof(status); rq.event = EVT_CMD_COMPLETE; if (hci_send_req(dd, &rq, to) < 0) return -1; if (status) { errno = status; return -1; } return 0; } int cancel_periodic_discovery(struct adapter *adapter) { struct remote_dev_info *dev, match; GSList *l; int dd, err = 0; if (!adapter->pdiscov_active) goto cleanup; dd = hci_open_dev(adapter->dev_id); if (dd < 0) { err = -ENODEV; goto cleanup; } /* find the pending remote name request */ memset(&match, 0, sizeof(struct remote_dev_info)); bacpy(&match.bdaddr, BDADDR_ANY); match.name_status = NAME_REQUESTED; l = g_slist_find_custom(adapter->found_devices, &match, (GCompareFunc) found_device_cmp); if (l) { dev = l->data; if (remote_name_cancel(dd, &dev->bdaddr, 1000) < 0) { error("Read remote name cancel failed: %s, (%d)", strerror(errno), errno); err = -errno; } } /* ovewrite err if necessary: stop periodic inquiry has higher * priority */ if (periodic_inquiry_exit(dd, 1000) < 0) { error("Periodic Inquiry exit failed:%s (%d)", strerror(errno), errno); err = -errno; } hci_close_dev(dd); cleanup: /* * Reset pdiscov_requestor and pdiscov_active is done when the * cmd complete event for exit periodic inquiry mode cmd arrives. */ g_slist_foreach(adapter->found_devices, (GFunc) g_free, NULL); g_slist_free(adapter->found_devices); adapter->found_devices = NULL; return err; } /* Most of the functions in this module require easy access to a connection so * we keep it global here and provide these access functions the other (few) * modules that require access to it */ void set_dbus_connection(DBusConnection *conn) { connection = conn; } DBusConnection *get_dbus_connection(void) { return connection; }