diff options
Diffstat (limited to 'plugins/hciops.c')
| -rw-r--r-- | plugins/hciops.c | 3744 |
1 files changed, 3744 insertions, 0 deletions
diff --git a/plugins/hciops.c b/plugins/hciops.c new file mode 100644 index 0000000..93f6f21 --- /dev/null +++ b/plugins/hciops.c @@ -0,0 +1,3744 @@ +/* + * + * BlueZ - Bluetooth protocol stack for Linux + * + * Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org> + * + * 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 <config.h> +#endif + +#include <stdio.h> +#include <errno.h> +#include <unistd.h> +#include <stdlib.h> +#include <sys/types.h> +#include <sys/ioctl.h> +#include <sys/wait.h> + +#include <bluetooth/bluetooth.h> +#include <bluetooth/hci.h> +#include <bluetooth/hci_lib.h> +#include <bluetooth/sdp.h> +#include <bluetooth/sdp_lib.h> + +#include <glib.h> + +#include "hcid.h" +#include "sdpd.h" +#include "btio.h" +#include "adapter.h" +#include "device.h" +#include "plugin.h" +#include "log.h" +#include "storage.h" +#include "event.h" +#include "manager.h" +#include "oob.h" + +static int child_pipe[2] = { -1, -1 }; + +static guint child_io_id = 0; +static guint ctl_io_id = 0; + +/* Commands sent by kernel on starting an adapter */ +enum { + PENDING_BDADDR, + PENDING_VERSION, + PENDING_FEATURES, + PENDING_NAME, +}; + +struct uuid_info { + uuid_t uuid; + uint8_t svc_hint; +}; + +struct bt_conn { + struct dev_info *dev; + bdaddr_t bdaddr; + uint16_t handle; + uint8_t loc_cap; + uint8_t loc_auth; + uint8_t rem_cap; + uint8_t rem_auth; + uint8_t rem_oob_data; + gboolean bonding_initiator; + gboolean secmode3; + GIOChannel *io; /* For raw L2CAP socket (bonding) */ +}; + +struct oob_data { + bdaddr_t bdaddr; + uint8_t hash[16]; + uint8_t randomizer[16]; +}; + +static int max_dev = -1; +static struct dev_info { + int id; + int sk; + bdaddr_t bdaddr; + char name[249]; + uint8_t eir[240]; + uint8_t features[8]; + uint8_t ssp_mode; + + int8_t tx_power; + + uint32_t current_cod; + uint32_t wanted_cod; + uint32_t pending_cod; + gboolean cache_enable; + gboolean already_up; + gboolean registered; + gboolean pairable; + + uint8_t io_capability; + + struct hci_version ver; + + uint16_t did_vendor; + uint16_t did_product; + uint16_t did_version; + + gboolean up; + uint32_t pending; + + GIOChannel *io; + guint watch_id; + + gboolean debug_keys; + GSList *keys; + uint8_t pin_length; + + GSList *oob_data; + + GSList *uuids; + + GSList *connections; +} *devs = NULL; + +static int ignore_device(struct hci_dev_info *di) +{ + return hci_test_bit(HCI_RAW, &di->flags) || di->type >> 4 != HCI_BREDR; +} + +static struct dev_info *init_dev_info(int index, int sk, gboolean registered, + gboolean already_up) +{ + struct dev_info *dev = &devs[index]; + + memset(dev, 0, sizeof(*dev)); + + dev->id = index; + dev->sk = sk; + dev->cache_enable = TRUE; + dev->registered = registered; + dev->already_up = already_up; + dev->io_capability = 0x03; /* No Input No Output */ + + return dev; +} + +/* Async HCI command handling with callback support */ + +struct hci_cmd_data { + bt_hci_result_t cb; + uint16_t handle; + uint16_t ocf; + gpointer caller_data; +}; + +static gboolean hci_event_watch(GIOChannel *io, + GIOCondition cond, gpointer user_data) +{ + unsigned char buf[HCI_MAX_EVENT_SIZE], *body; + struct hci_cmd_data *cmd = user_data; + evt_cmd_status *evt_status; + evt_auth_complete *evt_auth; + evt_encrypt_change *evt_enc; + hci_event_hdr *hdr; + set_conn_encrypt_cp cp; + int dd; + uint16_t ocf; + uint8_t status = HCI_OE_POWER_OFF; + + if (cond & G_IO_NVAL) { + cmd->cb(status, cmd->caller_data); + return FALSE; + } + + if (cond & (G_IO_ERR | G_IO_HUP)) + goto failed; + + dd = g_io_channel_unix_get_fd(io); + + if (read(dd, buf, sizeof(buf)) < 0) + goto failed; + + hdr = (hci_event_hdr *) (buf + 1); + body = buf + (1 + HCI_EVENT_HDR_SIZE); + + switch (hdr->evt) { + case EVT_CMD_STATUS: + evt_status = (evt_cmd_status *) body; + ocf = cmd_opcode_ocf(evt_status->opcode); + if (ocf != cmd->ocf) + return TRUE; + switch (ocf) { + case OCF_AUTH_REQUESTED: + case OCF_SET_CONN_ENCRYPT: + if (evt_status->status != 0) { + /* Baseband rejected command */ + status = evt_status->status; + goto failed; + } + break; + default: + return TRUE; + } + /* Wait for the next event */ + return TRUE; + case EVT_AUTH_COMPLETE: + evt_auth = (evt_auth_complete *) body; + if (evt_auth->handle != cmd->handle) { + /* Skipping */ + return TRUE; + } + + if (evt_auth->status != 0x00) { + status = evt_auth->status; + /* Abort encryption */ + goto failed; + } + + memset(&cp, 0, sizeof(cp)); + cp.handle = cmd->handle; + cp.encrypt = 1; + + cmd->ocf = OCF_SET_CONN_ENCRYPT; + + if (hci_send_cmd(dd, OGF_LINK_CTL, OCF_SET_CONN_ENCRYPT, + SET_CONN_ENCRYPT_CP_SIZE, &cp) < 0) { + status = HCI_COMMAND_DISALLOWED; + goto failed; + } + /* Wait for encrypt change event */ + return TRUE; + case EVT_ENCRYPT_CHANGE: + evt_enc = (evt_encrypt_change *) body; + if (evt_enc->handle != cmd->handle) + return TRUE; + + /* Procedure finished: reporting status */ + status = evt_enc->status; + break; + default: + /* Skipping */ + return TRUE; + } + +failed: + cmd->cb(status, cmd->caller_data); + g_io_channel_shutdown(io, TRUE, NULL); + + return FALSE; +} + +static int write_inq_mode(int index, uint8_t mode) +{ + struct dev_info *dev = &devs[index]; + write_inquiry_mode_cp cp; + + memset(&cp, 0, sizeof(cp)); + cp.mode = mode; + + if (hci_send_cmd(dev->sk, OGF_HOST_CTL, OCF_WRITE_INQUIRY_MODE, + WRITE_INQUIRY_MODE_CP_SIZE, &cp) < 0) + return -errno; + + return 0; +} + +static uint8_t get_inquiry_mode(int index) +{ + struct dev_info *dev = &devs[index]; + + if (dev->features[6] & LMP_EXT_INQ) + return 2; + + if (dev->features[3] & LMP_RSSI_INQ) + return 1; + + if (dev->ver.manufacturer == 11 && dev->ver.hci_rev == 0x00 && + dev->ver.lmp_subver == 0x0757) + return 1; + + if (dev->ver.manufacturer == 15) { + if (dev->ver.hci_rev == 0x03 && + dev->ver.lmp_subver == 0x6963) + return 1; + if (dev->ver.hci_rev == 0x09 && + dev->ver.lmp_subver == 0x6963) + return 1; + if (dev->ver.hci_rev == 0x00 && + dev->ver.lmp_subver == 0x6965) + return 1; + } + + if (dev->ver.manufacturer == 31 && dev->ver.hci_rev == 0x2005 && + dev->ver.lmp_subver == 0x1805) + return 1; + + return 0; +} + +static int init_ssp_mode(int index) +{ + struct dev_info *dev = &devs[index]; + write_simple_pairing_mode_cp cp; + + if (ioctl(dev->sk, HCIGETAUTHINFO, NULL) < 0 && errno == EINVAL) + return 0; + + memset(&cp, 0, sizeof(cp)); + cp.mode = 0x01; + + if (hci_send_cmd(dev->sk, OGF_HOST_CTL, + OCF_WRITE_SIMPLE_PAIRING_MODE, + WRITE_SIMPLE_PAIRING_MODE_CP_SIZE, &cp) < 0) + return -errno; + + return 0; +} + +static int hciops_set_discoverable(int index, gboolean discoverable) +{ + struct dev_info *dev = &devs[index]; + uint8_t mode; + + if (discoverable) + mode = (SCAN_PAGE | SCAN_INQUIRY); + else + mode = SCAN_PAGE; + + DBG("hci%d discoverable %d", index, discoverable); + + if (hci_send_cmd(dev->sk, OGF_HOST_CTL, OCF_WRITE_SCAN_ENABLE, + 1, &mode) < 0) + return -errno; + + return 0; +} + +static int hciops_set_pairable(int index, gboolean pairable) +{ + struct btd_adapter *adapter; + + DBG("hci%d pairable %d", index, pairable); + + adapter = manager_find_adapter(&devs[index].bdaddr); + if (adapter) + btd_adapter_pairable_changed(adapter, pairable); + + devs[index].pairable = pairable; + + return 0; +} + +static int hciops_power_off(int index) +{ + struct dev_info *dev = &devs[index]; + + DBG("hci%d", index); + + if (ioctl(dev->sk, HCIDEVDOWN, index) < 0 && errno != EALREADY) + return -errno; + + return 0; +} + +static void set_event_mask(int index) +{ + struct dev_info *dev = &devs[index]; + /* The second byte is 0xff instead of 0x9f (two reserved bits + * disabled) since a Broadcom 1.2 dongle doesn't respond to the + * command otherwise */ + uint8_t events[8] = { 0xff, 0xff, 0xfb, 0xff, 0x00, 0x00, 0x00, 0x00 }; + + /* Events for 1.2 and newer controllers */ + if (dev->ver.lmp_ver > 1) { + events[4] |= 0x01; /* Flow Specification Complete */ + events[4] |= 0x02; /* Inquiry Result with RSSI */ + events[4] |= 0x04; /* Read Remote Extended Features Complete */ + events[5] |= 0x08; /* Synchronous Connection Complete */ + events[5] |= 0x10; /* Synchronous Connection Changed */ + } + + if (dev->features[3] & LMP_RSSI_INQ) + events[4] |= 0x04; /* Inquiry Result with RSSI */ + + if (dev->features[5] & LMP_SNIFF_SUBR) + events[5] |= 0x20; /* Sniff Subrating */ + + if (dev->features[5] & LMP_PAUSE_ENC) + events[5] |= 0x80; /* Encryption Key Refresh Complete */ + + if (dev->features[6] & LMP_EXT_INQ) + events[5] |= 0x40; /* Extended Inquiry Result */ + + if (dev->features[6] & LMP_NFLUSH_PKTS) + events[7] |= 0x01; /* Enhanced Flush Complete */ + + if (dev->features[7] & LMP_LSTO) + events[6] |= 0x80; /* Link Supervision Timeout Changed */ + + if (dev->features[6] & LMP_SIMPLE_PAIR) { + events[6] |= 0x01; /* IO Capability Request */ + events[6] |= 0x02; /* IO Capability Response */ + events[6] |= 0x04; /* User Confirmation Request */ + events[6] |= 0x08; /* User Passkey Request */ + events[6] |= 0x10; /* Remote OOB Data Request */ + events[6] |= 0x20; /* Simple Pairing Complete */ + events[7] |= 0x04; /* User Passkey Notification */ + events[7] |= 0x08; /* Keypress Notification */ + events[7] |= 0x10; /* Remote Host Supported + * Features Notification */ + } + + if (dev->features[4] & LMP_LE) + events[7] |= 0x20; /* LE Meta-Event */ + + hci_send_cmd(dev->sk, OGF_HOST_CTL, OCF_SET_EVENT_MASK, + sizeof(events), events); +} + +static void start_adapter(int index) +{ + struct dev_info *dev = &devs[index]; + uint8_t inqmode; + uint16_t link_policy; + + set_event_mask(index); + + if (dev->features[6] & LMP_SIMPLE_PAIR) + init_ssp_mode(index); + + inqmode = get_inquiry_mode(index); + if (inqmode) + write_inq_mode(index, inqmode); + + if (dev->features[7] & LMP_INQ_TX_PWR) + hci_send_cmd(dev->sk, OGF_HOST_CTL, + OCF_READ_INQ_RESPONSE_TX_POWER_LEVEL, 0, NULL); + + /* Set default link policy */ + link_policy = main_opts.link_policy; + + if (!(dev->features[0] & LMP_RSWITCH)) + link_policy &= ~HCI_LP_RSWITCH; + if (!(dev->features[0] & LMP_HOLD)) + link_policy &= ~HCI_LP_HOLD; + if (!(dev->features[0] & LMP_SNIFF)) + link_policy &= ~HCI_LP_SNIFF; + if (!(dev->features[1] & LMP_PARK)) + link_policy &= ~HCI_LP_PARK; + + link_policy = htobs(link_policy); + hci_send_cmd(dev->sk, OGF_LINK_POLICY, OCF_WRITE_DEFAULT_LINK_POLICY, + sizeof(link_policy), &link_policy); + + dev->current_cod = 0; + memset(dev->eir, 0, sizeof(dev->eir)); +} + +static int hciops_stop_inquiry(int index) +{ + struct dev_info *dev = &devs[index]; + struct hci_dev_info di; + int err; + + DBG("hci%d", index); + + if (hci_devinfo(index, &di) < 0) + return -errno; + + if (hci_test_bit(HCI_INQUIRY, &di.flags)) + err = hci_send_cmd(dev->sk, OGF_LINK_CTL, + OCF_INQUIRY_CANCEL, 0, 0); + else + err = hci_send_cmd(dev->sk, OGF_LINK_CTL, + OCF_EXIT_PERIODIC_INQUIRY, 0, 0); + if (err < 0) + err = -errno; + + return err; +} + +static gboolean init_adapter(int index) +{ + struct dev_info *dev = &devs[index]; + struct btd_adapter *adapter = NULL; + gboolean existing_adapter = dev->registered; + uint8_t mode, on_mode; + gboolean pairable, discoverable; + + if (!dev->registered) { + adapter = btd_manager_register_adapter(index); + if (adapter) + dev->registered = TRUE; + } else { + adapter = manager_find_adapter(&dev->bdaddr); + /* FIXME: manager_find_adapter should return a new ref */ + btd_adapter_ref(adapter); + } + + if (adapter == NULL) + return FALSE; + + btd_adapter_get_mode(adapter, &mode, &on_mode, &pairable); + + if (existing_adapter) + mode = on_mode; + + if (mode == MODE_OFF) { + hciops_power_off(index); + goto done; + } + + start_adapter(index); + btd_adapter_start(adapter); + + discoverable = (mode == MODE_DISCOVERABLE); + + hciops_set_discoverable(index, discoverable); + hciops_set_pairable(index, pairable); + + if (dev->already_up) + hciops_stop_inquiry(index); + +done: + btd_adapter_unref(adapter); + return TRUE; +} + +static int hciops_encrypt_link(int index, bdaddr_t *dst, bt_hci_result_t cb, + gpointer user_data) +{ + GIOChannel *io; + struct hci_cmd_data *cmd; + struct hci_conn_info_req *cr; + auth_requested_cp cp; + struct hci_filter nf; + int dd, err; + uint32_t link_mode; + uint16_t handle; + + dd = hci_open_dev(index); + if (dd < 0) + return -errno; + + cr = g_malloc0(sizeof(*cr) + sizeof(struct hci_conn_info)); + cr->type = ACL_LINK; + bacpy(&cr->bdaddr, dst); + + err = ioctl(dd, HCIGETCONNINFO, cr); + link_mode = cr->conn_info->link_mode; + handle = cr->conn_info->handle; + g_free(cr); + + if (err < 0) { + err = -errno; + goto fail; + } + + if (link_mode & HCI_LM_ENCRYPT) { + err = -EALREADY; + goto fail; + } + + memset(&cp, 0, sizeof(cp)); + cp.handle = htobs(handle); + + if (hci_send_cmd(dd, OGF_LINK_CTL, OCF_AUTH_REQUESTED, + AUTH_REQUESTED_CP_SIZE, &cp) < 0) { + err = -errno; + goto fail; + } + + cmd = g_new0(struct hci_cmd_data, 1); + cmd->handle = handle; + cmd->ocf = OCF_AUTH_REQUESTED; + cmd->cb = cb; + cmd->caller_data = user_data; + + hci_filter_clear(&nf); + hci_filter_set_ptype(HCI_EVENT_PKT, &nf); + hci_filter_set_event(EVT_CMD_STATUS, &nf); + hci_filter_set_event(EVT_AUTH_COMPLETE, &nf); + hci_filter_set_event(EVT_ENCRYPT_CHANGE, &nf); + + if (setsockopt(dd, SOL_HCI, HCI_FILTER, &nf, sizeof(nf)) < 0) { + err = -errno; + g_free(cmd); + goto fail; + } + + io = g_io_channel_unix_new(dd); + g_io_channel_set_close_on_unref(io, FALSE); + g_io_add_watch_full(io, G_PRIORITY_DEFAULT, + G_IO_HUP | G_IO_ERR | G_IO_NVAL | G_IO_IN, + hci_event_watch, cmd, g_free); + g_io_channel_unref(io); + + return 0; + +fail: + close(dd); + return err; +} + +static int hciops_set_did(int index, uint16_t vendor, uint16_t product, + uint16_t version) +{ + struct dev_info *dev = &devs[index]; + + dev->did_vendor = vendor; + dev->did_product = product; + dev->did_version = version; + + return 0; +} + +/* End async HCI command handling */ + +/* Start of HCI event callbacks */ + +static gint conn_handle_cmp(gconstpointer a, gconstpointer b) +{ + const struct bt_conn *conn = a; + uint16_t handle = *((const uint16_t *) b); + + return (int) conn->handle - (int) handle; +} + +static struct bt_conn *find_conn_by_handle(struct dev_info *dev, + uint16_t handle) +{ + GSList *match; + + match = g_slist_find_custom(dev->connections, &handle, + conn_handle_cmp); + if (match) + return match->data; + + return NULL; +} + +static gint conn_bdaddr_cmp(gconstpointer a, gconstpointer b) +{ + const struct bt_conn *conn = a; + const bdaddr_t *bdaddr = b; + + return bacmp(&conn->bdaddr, bdaddr); +} + +static struct bt_conn *find_connection(struct dev_info *dev, bdaddr_t *bdaddr) +{ + GSList *match; + + match = g_slist_find_custom(dev->connections, bdaddr, conn_bdaddr_cmp); + if (match) + return match->data; + + return NULL; +} + +static struct bt_conn *get_connection(struct dev_info *dev, bdaddr_t *bdaddr) +{ + struct bt_conn *conn; + + conn = find_connection(dev, bdaddr); + if (conn) + return conn; + + conn = g_new0(struct bt_conn, 1); + + conn->dev = dev; + conn->loc_cap = dev->io_capability; + conn->loc_auth = 0xff; + conn->rem_auth = 0xff; + bacpy(&conn->bdaddr, bdaddr); + + dev->connections = g_slist_append(dev->connections, conn); + + return conn; +} + +static int get_handle(int index, bdaddr_t *bdaddr, uint16_t *handle) +{ + struct dev_info *dev = &devs[index]; + struct bt_conn *conn; + char addr[18]; + + ba2str(bdaddr, addr); + DBG("hci%d dba %s", index, addr); + + conn = find_connection(dev, bdaddr); + if (conn == NULL) + return -ENOENT; + + *handle = conn->handle; + + return 0; +} + +static int disconnect_addr(int index, bdaddr_t *dba, uint8_t reason) +{ + disconnect_cp cp; + uint16_t handle; + int err; + + err = get_handle(index, dba, &handle); + if (err < 0) + return err; + + memset(&cp, 0, sizeof(cp)); + cp.handle = htobs(handle); + cp.reason = reason; + + if (hci_send_cmd(devs[index].sk, OGF_LINK_CTL, OCF_DISCONNECT, + DISCONNECT_CP_SIZE, &cp) < 0) + return -errno; + + return 0; +} + +static void bonding_complete(struct dev_info *dev, struct bt_conn *conn, + uint8_t status) +{ + DBG("status 0x%02x", status); + + if (conn->io != NULL) { + /* bonding_connect_cb takes care of the successul case */ + if (status != 0) + g_io_channel_shutdown(conn->io, TRUE, NULL); + g_io_channel_unref(conn->io); + conn->io = NULL; + } + + conn->bonding_initiator = FALSE; + + btd_event_bonding_complete(&dev->bdaddr, &conn->bdaddr, status); +} + +static int get_auth_info(int index, bdaddr_t *bdaddr, uint8_t *auth) +{ + struct dev_info *dev = &devs[index]; + struct hci_auth_info_req req; + char addr[18]; + + ba2str(bdaddr, addr); + DBG("hci%d dba %s", index, addr); + + memset(&req, 0, sizeof(req)); + bacpy(&req.bdaddr, bdaddr); + + if (ioctl(dev->sk, HCIGETAUTHINFO, (unsigned long) &req) < 0) + return -errno; + + if (auth) + *auth = req.type; + + return 0; +} + +/* Link Key handling */ + +static void link_key_request(int index, bdaddr_t *dba) +{ + struct dev_info *dev = &devs[index]; + struct link_key_info *key_info; + struct bt_conn *conn; + GSList *match; + char da[18]; + + ba2str(dba, da); + DBG("hci%d dba %s", index, da); + + conn = get_connection(dev, dba); + if (conn->handle == 0) + conn->secmode3 = TRUE; + + get_auth_info(index, dba, &conn->loc_auth); + + DBG("kernel auth requirements = 0x%02x", conn->loc_auth); + + match = g_slist_find_custom(dev->keys, dba, (GCompareFunc) bacmp); + if (match) + key_info = match->data; + else + key_info = NULL; + + DBG("Matching key %s", key_info ? "found" : "not found"); + + if (key_info == NULL || (!dev->debug_keys && key_info->type == 0x03)) { + /* Link key not found */ + hci_send_cmd(dev->sk, OGF_LINK_CTL, OCF_LINK_KEY_NEG_REPLY, + 6, dba); + return; + } + + /* Link key found */ + + DBG("link key type 0x%02x", key_info->type); + + /* Don't use unauthenticated combination keys if MITM is + * required */ + if (key_info->type == 0x04 && conn->loc_auth != 0xff && + (conn->loc_auth & 0x01)) + hci_send_cmd(dev->sk, OGF_LINK_CTL, OCF_LINK_KEY_NEG_REPLY, + 6, dba); + else { + link_key_reply_cp lr; + + memcpy(lr.link_key, key_info->key, 16); + bacpy(&lr.bdaddr, dba); + + hci_send_cmd(dev->sk, OGF_LINK_CTL, OCF_LINK_KEY_REPLY, + LINK_KEY_REPLY_CP_SIZE, &lr); + } +} + +static void link_key_notify(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + evt_link_key_notify *evt = ptr; + bdaddr_t *dba = &evt->bdaddr; + struct link_key_info *key_info; + uint8_t old_key_type, key_type; + struct bt_conn *conn; + GSList *match; + char da[18]; + uint8_t status = 0; + + ba2str(dba, da); + DBG("hci%d dba %s type %d", index, da, evt->key_type); + + conn = get_connection(dev, &evt->bdaddr); + + match = g_slist_find_custom(dev->keys, dba, (GCompareFunc) bacmp); + if (match) + key_info = match->data; + else + key_info = NULL; + + if (key_info == NULL) { + key_info = g_new0(struct link_key_info, 1); + bacpy(&key_info->bdaddr, &evt->bdaddr); + old_key_type = 0xff; + } else { + dev->keys = g_slist_remove(dev->keys, key_info); + old_key_type = key_info->type; + } + + memcpy(key_info->key, evt->link_key, sizeof(evt->link_key)); + key_info->type = evt->key_type; + key_info->pin_len = dev->pin_length; + + key_type = evt->key_type; + + DBG("key type 0x%02x old key type 0x%02x", key_type, old_key_type); + DBG("local auth 0x%02x and remote auth 0x%02x", + conn->loc_auth, conn->rem_auth); + + if (key_type == 0x06) { + /* Some buggy controller combinations generate a changed + * combination key for legacy pairing even when there's no + * previous key */ + if ((!conn || conn->rem_auth == 0xff) && old_key_type == 0xff) + key_type = 0x00; + else if (old_key_type != 0xff) + key_type = old_key_type; + else + /* This is Changed Combination Link Key for + * a temporary link key.*/ + goto done; + } + + key_info->type = key_type; + + /* Skip the storage check if this is a debug key */ + if (key_type == 0x03) + goto done; + + /* Store the link key persistently if one of the following is true: + * 1. this is a legacy link key + * 2. this is a changed combination key and there was a previously + * stored one + * 3. neither local nor remote side had no-bonding as a requirement + * 4. the local side had dedicated bonding as a requirement + * 5. the remote side is using dedicated bonding since in that case + * also the local requirements are set to dedicated bonding + * If none of the above match only keep the link key around for + * this connection and set the temporary flag for the device. + */ + if (key_type < 0x03 || (key_type == 0x06 && old_key_type != 0xff) || + (conn->loc_auth > 0x01 && conn->rem_auth > 0x01) || + (conn->loc_auth == 0x02 || conn->loc_auth == 0x03) || + (conn->rem_auth == 0x02 || conn->rem_auth == 0x03)) { + int err; + + err = btd_event_link_key_notify(&dev->bdaddr, dba, + evt->link_key, key_type, + dev->pin_length); + + if (err == -ENODEV) + status = HCI_OE_LOW_RESOURCES; + else if (err < 0) + status = HCI_MEMORY_FULL; + + goto done; + } + +done: + dev->pin_length = 0; + + if (status != 0) { + g_free(key_info); + bonding_complete(dev, conn, status); + disconnect_addr(index, dba, status); + return; + } + + dev->keys = g_slist_prepend(dev->keys, key_info); + + /* If we're connected and not dedicated bonding initiators we're + * done with the bonding process */ + if (!conn->bonding_initiator && conn->handle != 0) + bonding_complete(dev, conn, 0); +} + +static void return_link_keys(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + evt_return_link_keys *evt = ptr; + uint8_t num = evt->num_keys; + unsigned char key[16]; + char da[18]; + bdaddr_t dba; + int i; + + DBG("hci%d num_keys %u", index, num); + + ptr++; + + for (i = 0; i < num; i++) { + bacpy(&dba, ptr); ba2str(&dba, da); + memcpy(key, ptr + 6, 16); + + DBG("hci%d returned key for %s", index, da); + + btd_event_returned_link_key(&dev->bdaddr, &dba); + + ptr += 22; + } +} + +/* Simple Pairing handling */ + +static int hciops_confirm_reply(int index, bdaddr_t *bdaddr, gboolean success) +{ + struct dev_info *dev = &devs[index]; + user_confirm_reply_cp cp; + char addr[18]; + int err; + + ba2str(bdaddr, addr); + DBG("hci%d dba %s success %d", index, addr, success); + + memset(&cp, 0, sizeof(cp)); + bacpy(&cp.bdaddr, bdaddr); + + if (success) + err = hci_send_cmd(dev->sk, OGF_LINK_CTL, + OCF_USER_CONFIRM_REPLY, + USER_CONFIRM_REPLY_CP_SIZE, &cp); + else + err = hci_send_cmd(dev->sk, OGF_LINK_CTL, + OCF_USER_CONFIRM_NEG_REPLY, + USER_CONFIRM_REPLY_CP_SIZE, &cp); + + if (err < 0) + err = -errno; + + return err; +} + +static void user_confirm_request(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + evt_user_confirm_request *req = ptr; + gboolean loc_mitm, rem_mitm; + struct bt_conn *conn; + + DBG("hci%d", index); + + conn = find_connection(dev, &req->bdaddr); + if (conn == NULL) + return; + + loc_mitm = (conn->loc_auth & 0x01) ? TRUE : FALSE; + rem_mitm = (conn->rem_auth & 0x01) ? TRUE : FALSE; + + /* If we require MITM but the remote device can't provide that + * (it has NoInputNoOutput) then reject the confirmation + * request. The only exception is when we're dedicated bonding + * initiators since then we always have the MITM bit set. */ + if (!conn->bonding_initiator && loc_mitm && conn->rem_cap == 0x03) { + error("Rejecting request: remote device can't provide MITM"); + goto fail; + } + + /* If no side requires MITM protection; auto-accept */ + if ((conn->loc_auth == 0xff || !loc_mitm || conn->rem_cap == 0x03) && + (!rem_mitm || conn->loc_cap == 0x03)) { + DBG("auto accept of confirmation"); + + /* Wait 5 milliseconds before doing auto-accept */ + usleep(5000); + + if (hciops_confirm_reply(index, &req->bdaddr, TRUE) < 0) + goto fail; + + return; + } + + if (btd_event_user_confirm(&dev->bdaddr, &req->bdaddr, + btohl(req->passkey)) == 0) + return; + +fail: + hci_send_cmd(dev->sk, OGF_LINK_CTL, OCF_USER_CONFIRM_NEG_REPLY, + 6, ptr); +} + +static void user_passkey_request(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + evt_user_passkey_request *req = ptr; + + DBG("hci%d", index); + + if (btd_event_user_passkey(&dev->bdaddr, &req->bdaddr) < 0) + hci_send_cmd(dev->sk, OGF_LINK_CTL, + OCF_USER_PASSKEY_NEG_REPLY, 6, ptr); +} + +static void user_passkey_notify(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + evt_user_passkey_notify *req = ptr; + + DBG("hci%d", index); + + btd_event_user_notify(&dev->bdaddr, &req->bdaddr, + btohl(req->passkey)); +} + +static gint oob_bdaddr_cmp(gconstpointer a, gconstpointer b) +{ + const struct oob_data *data = a; + const bdaddr_t *bdaddr = b; + + return bacmp(&data->bdaddr, bdaddr); +} + +static void remote_oob_data_request(int index, bdaddr_t *bdaddr) +{ + struct dev_info *dev = &devs[index]; + GSList *match; + + DBG("hci%d", index); + + match = g_slist_find_custom(dev->oob_data, bdaddr, oob_bdaddr_cmp); + + if (match) { + struct oob_data *data; + remote_oob_data_reply_cp cp; + + data = match->data; + + bacpy(&cp.bdaddr, &data->bdaddr); + memcpy(cp.hash, data->hash, sizeof(cp.hash)); + memcpy(cp.randomizer, data->randomizer, sizeof(cp.randomizer)); + + dev->oob_data = g_slist_delete_link(dev->oob_data, match); + + hci_send_cmd(dev->sk, OGF_LINK_CTL, OCF_REMOTE_OOB_DATA_REPLY, + REMOTE_OOB_DATA_REPLY_CP_SIZE, &cp); + + } else { + hci_send_cmd(dev->sk, OGF_LINK_CTL, + OCF_REMOTE_OOB_DATA_NEG_REPLY, 6, bdaddr); + } +} + +static int get_io_cap(int index, bdaddr_t *bdaddr, uint8_t *cap, uint8_t *auth) +{ + struct dev_info *dev = &devs[index]; + struct bt_conn *conn; + int err; + + conn = find_connection(dev, bdaddr); + if (conn == NULL) + return -ENOENT; + + err = get_auth_info(index, bdaddr, &conn->loc_auth); + if (err < 0) + return err; + + DBG("initial authentication requirement is 0x%02x", conn->loc_auth); + + if (!dev->pairable && !conn->bonding_initiator) { + if (conn->rem_auth < 0x02) { + DBG("Allowing no bonding in non-bondable mode"); + /* Kernel defaults to general bonding and so + * overwrite for this special case. Otherwise + * non-pairable test cases will fail. */ + conn->loc_auth = conn->rem_auth; + goto done; + } + + return -EPERM; + } + + /* If the kernel doesn't know the local requirement just mirror + * the remote one */ + if (conn->loc_auth == 0xff) + conn->loc_auth = conn->rem_auth; + + if (conn->loc_auth == 0x00 || conn->loc_auth == 0x04) { + /* If remote requests dedicated bonding follow that lead */ + if (conn->rem_auth == 0x02 || conn->rem_auth == 0x03) { + + /* If both remote and local IO capabilities allow MITM + * then require it, otherwise don't */ + if (conn->rem_cap == 0x03 || conn->loc_cap == 0x03) + conn->loc_auth = 0x02; + else + conn->loc_auth = 0x03; + } + + /* If remote indicates no bonding then follow that. This + * is important since the kernel might give general bonding + * as default. */ + if (conn->rem_auth == 0x00 || conn->rem_auth == 0x01) + conn->loc_auth = 0x00; + + /* If remote requires MITM then also require it, unless + * our IO capability is NoInputNoOutput (so some + * just-works security cases can be tested) */ + if (conn->rem_auth != 0xff && (conn->rem_auth & 0x01) && + conn->loc_cap != 0x03) + conn->loc_auth |= 0x01; + } + +done: + *cap = conn->loc_cap; + *auth = conn->loc_auth; + + DBG("final authentication requirement is 0x%02x", *auth); + + return 0; +} + +static void io_capa_request(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + bdaddr_t *dba = ptr; + uint8_t cap, auth = 0xff; + char da[18]; + int err; + + ba2str(dba, da); + DBG("hci%d IO capability request for %s", index, da); + + err = get_io_cap(index, dba, &cap, &auth); + if (err < 0) { + io_capability_neg_reply_cp cp; + + error("Getting IO capability failed: %s (%d)", + strerror(-err), -err); + + memset(&cp, 0, sizeof(cp)); + bacpy(&cp.bdaddr, dba); + cp.reason = HCI_PAIRING_NOT_ALLOWED; + hci_send_cmd(dev->sk, OGF_LINK_CTL, + OCF_IO_CAPABILITY_NEG_REPLY, + IO_CAPABILITY_NEG_REPLY_CP_SIZE, &cp); + } else { + io_capability_reply_cp cp; + struct bt_conn *conn; + GSList *match; + + memset(&cp, 0, sizeof(cp)); + bacpy(&cp.bdaddr, dba); + cp.capability = cap; + cp.authentication = auth; + + conn = find_connection(dev, dba); + match = g_slist_find_custom(dev->oob_data, dba, oob_bdaddr_cmp); + + if ((conn->bonding_initiator || conn->rem_oob_data == 0x01) && + match) + cp.oob_data = 0x01; + else + cp.oob_data = 0x00; + + hci_send_cmd(dev->sk, OGF_LINK_CTL, OCF_IO_CAPABILITY_REPLY, + IO_CAPABILITY_REPLY_CP_SIZE, &cp); + } +} + +static void io_capa_response(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + evt_io_capability_response *evt = ptr; + struct bt_conn *conn; + char da[18]; + + ba2str(&evt->bdaddr, da); + DBG("hci%d IO capability response from %s", index, da); + + conn = find_connection(dev, &evt->bdaddr); + if (conn) { + conn->rem_cap = evt->capability; + conn->rem_auth = evt->authentication; + conn->rem_oob_data = evt->oob_data; + } +} + +/* PIN code handling */ + +static void pin_code_request(int index, bdaddr_t *dba) +{ + struct dev_info *dev = &devs[index]; + struct bt_conn *conn; + char addr[18]; + int err; + + ba2str(dba, addr); + DBG("hci%d PIN request for %s", index, addr); + + conn = get_connection(dev, dba); + if (conn->handle == 0) + conn->secmode3 = TRUE; + + /* Check if the adapter is not pairable and if there isn't a bonding in + * progress */ + if (!dev->pairable && !conn->bonding_initiator) { + DBG("Rejecting PIN request in non-pairable mode"); + goto reject; + } + + err = btd_event_request_pin(&dev->bdaddr, dba); + if (err < 0) { + error("PIN code negative reply: %s", strerror(-err)); + goto reject; + } + + return; + +reject: + hci_send_cmd(dev->sk, OGF_LINK_CTL, OCF_PIN_CODE_NEG_REPLY, 6, dba); +} + +static void start_inquiry(bdaddr_t *local, uint8_t status, gboolean periodic) +{ + struct btd_adapter *adapter; + int state; + + /* Don't send the signal if the cmd failed */ + if (status) { + error("Inquiry Failed with status 0x%02x", status); + return; + } + + adapter = manager_find_adapter(local); + if (!adapter) { + error("Unable to find matching adapter"); + return; + } + + state = adapter_get_state(adapter); + + if (periodic) + state |= STATE_PINQ; + else + state |= STATE_STDINQ; + + adapter_set_state(adapter, state); +} + +static void inquiry_complete(bdaddr_t *local, uint8_t status, + gboolean periodic) +{ + struct btd_adapter *adapter; + int state; + + /* Don't send the signal if the cmd failed */ + if (status) { + error("Inquiry Failed with status 0x%02x", status); + return; + } + + adapter = manager_find_adapter(local); + if (!adapter) { + error("Unable to find matching adapter"); + return; + } + + state = adapter_get_state(adapter); + state &= ~(STATE_STDINQ | STATE_PINQ); + adapter_set_state(adapter, state); +} + +static inline void remote_features_notify(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + evt_remote_host_features_notify *evt = ptr; + + if (evt->features[0] & 0x01) + btd_event_set_legacy_pairing(&dev->bdaddr, &evt->bdaddr, + FALSE); + else + btd_event_set_legacy_pairing(&dev->bdaddr, &evt->bdaddr, + TRUE); + + write_features_info(&dev->bdaddr, &evt->bdaddr, NULL, evt->features); +} + +static void write_le_host_complete(int index, uint8_t status) +{ + struct dev_info *dev = &devs[index]; + uint8_t page_num = 0x01; + + if (status) + return; + + if (hci_send_cmd(dev->sk, OGF_INFO_PARAM, + OCF_READ_LOCAL_EXT_FEATURES, 1, &page_num) < 0) + error("Unable to read extended local features: %s (%d)", + strerror(errno), errno); +} + +static void read_local_version_complete(int index, + const read_local_version_rp *rp) +{ + struct dev_info *dev = &devs[index]; + + if (rp->status) + return; + + dev->ver.manufacturer = btohs(bt_get_unaligned(&rp->manufacturer)); + dev->ver.hci_ver = rp->hci_ver; + dev->ver.hci_rev = btohs(bt_get_unaligned(&rp->hci_rev)); + dev->ver.lmp_ver = rp->lmp_ver; + dev->ver.lmp_subver = btohs(bt_get_unaligned(&rp->lmp_subver)); + + if (!dev->pending) + return; + + hci_clear_bit(PENDING_VERSION, &dev->pending); + + DBG("Got version for hci%d", index); + + if (!dev->pending && dev->up) + init_adapter(index); +} + +static void read_local_features_complete(int index, + const read_local_features_rp *rp) +{ + struct dev_info *dev = &devs[index]; + + if (rp->status) + return; + + memcpy(dev->features, rp->features, 8); + + if (!dev->pending) + return; + + hci_clear_bit(PENDING_FEATURES, &dev->pending); + + DBG("Got features for hci%d", index); + + if (!dev->pending && dev->up) + init_adapter(index); +} + +#define SIZEOF_UUID128 16 + +static void eir_generate_uuid128(GSList *list, uint8_t *ptr, uint16_t *eir_len) +{ + int i, k, uuid_count = 0; + uint16_t len = *eir_len; + uint8_t *uuid128; + gboolean truncated = FALSE; + + /* Store UUIDs in place, skip 2 bytes to write type and length later */ + uuid128 = ptr + 2; + + for (; list; list = list->next) { + struct uuid_info *uuid = list->data; + uint8_t *uuid128_data = uuid->uuid.value.uuid128.data; + + if (uuid->uuid.type != SDP_UUID128) + continue; + + /* Stop if not enough space to put next UUID128 */ + if ((len + 2 + SIZEOF_UUID128) > EIR_DATA_LENGTH) { + truncated = TRUE; + break; + } + + /* Check for duplicates, EIR data is Little Endian */ + for (i = 0; i < uuid_count; i++) { + for (k = 0; k < SIZEOF_UUID128; k++) { + if (uuid128[i * SIZEOF_UUID128 + k] != + uuid128_data[SIZEOF_UUID128 - 1 - k]) + break; + } + if (k == SIZEOF_UUID128) + break; + } + + if (i < uuid_count) + continue; + + /* EIR data is Little Endian */ + for (k = 0; k < SIZEOF_UUID128; k++) + uuid128[uuid_count * SIZEOF_UUID128 + k] = + uuid128_data[SIZEOF_UUID128 - 1 - k]; + + len += SIZEOF_UUID128; + uuid_count++; + } + + if (uuid_count > 0 || truncated) { + /* EIR Data length */ + ptr[0] = (uuid_count * SIZEOF_UUID128) + 1; + /* EIR Data type */ + ptr[1] = truncated ? EIR_UUID128_SOME : EIR_UUID128_ALL; + len += 2; + *eir_len = len; + } +} + +static void create_ext_inquiry_response(int index, uint8_t *data) +{ + struct dev_info *dev = &devs[index]; + GSList *l; + uint8_t *ptr = data; + uint16_t eir_len = 0; + uint16_t uuid16[EIR_DATA_LENGTH / 2]; + int i, uuid_count = 0; + gboolean truncated = FALSE; + size_t name_len; + + name_len = strlen(dev->name); + + if (name_len > 0) { + /* EIR Data type */ + if (name_len > 48) { + name_len = 48; + ptr[1] = EIR_NAME_SHORT; + } else + ptr[1] = EIR_NAME_COMPLETE; + + /* EIR Data length */ + ptr[0] = name_len + 1; + + memcpy(ptr + 2, dev->name, name_len); + + eir_len += (name_len + 2); + ptr += (name_len + 2); + } + + if (dev->tx_power != 0) { + *ptr++ = 2; + *ptr++ = EIR_TX_POWER; + *ptr++ = (uint8_t) dev->tx_power; + eir_len += 3; + } + + if (dev->did_vendor != 0x0000) { + uint16_t source = 0x0002; + *ptr++ = 9; + *ptr++ = EIR_DEVICE_ID; + *ptr++ = (source & 0x00ff); + *ptr++ = (source & 0xff00) >> 8; + *ptr++ = (dev->did_vendor & 0x00ff); + *ptr++ = (dev->did_vendor & 0xff00) >> 8; + *ptr++ = (dev->did_product & 0x00ff); + *ptr++ = (dev->did_product & 0xff00) >> 8; + *ptr++ = (dev->did_version & 0x00ff); + *ptr++ = (dev->did_version & 0xff00) >> 8; + eir_len += 10; + } + + /* Group all UUID16 types */ + for (l = dev->uuids; l != NULL; l = g_slist_next(l)) { + struct uuid_info *uuid = l->data; + + if (uuid->uuid.type != SDP_UUID16) + continue; + + if (uuid->uuid.value.uuid16 < 0x1100) + continue; + + if (uuid->uuid.value.uuid16 == PNP_INFO_SVCLASS_ID) + continue; + + /* Stop if not enough space to put next UUID16 */ + if ((eir_len + 2 + sizeof(uint16_t)) > EIR_DATA_LENGTH) { + truncated = TRUE; + break; + } + + /* Check for duplicates */ + for (i = 0; i < uuid_count; i++) + if (uuid16[i] == uuid->uuid.value.uuid16) + break; + + if (i < uuid_count) + continue; + + uuid16[uuid_count++] = uuid->uuid.value.uuid16; + eir_len += sizeof(uint16_t); + } + + if (uuid_count > 0) { + /* EIR Data length */ + ptr[0] = (uuid_count * sizeof(uint16_t)) + 1; + /* EIR Data type */ + ptr[1] = truncated ? EIR_UUID16_SOME : EIR_UUID16_ALL; + + ptr += 2; + eir_len += 2; + + for (i = 0; i < uuid_count; i++) { + *ptr++ = (uuid16[i] & 0x00ff); + *ptr++ = (uuid16[i] & 0xff00) >> 8; + } + } + + /* Group all UUID128 types */ + if (eir_len <= EIR_DATA_LENGTH - 2) + eir_generate_uuid128(dev->uuids, ptr, &eir_len); +} + +static void update_ext_inquiry_response(int index) +{ + struct dev_info *dev = &devs[index]; + write_ext_inquiry_response_cp cp; + + DBG("hci%d", index); + + if (!(dev->features[6] & LMP_EXT_INQ)) + return; + + if (dev->ssp_mode == 0) + return; + + if (dev->cache_enable) + return; + + memset(&cp, 0, sizeof(cp)); + + create_ext_inquiry_response(index, cp.data); + + if (memcmp(cp.data, dev->eir, sizeof(cp.data)) == 0) + return; + + memcpy(dev->eir, cp.data, sizeof(cp.data)); + + if (hci_send_cmd(dev->sk, OGF_HOST_CTL, + OCF_WRITE_EXT_INQUIRY_RESPONSE, + WRITE_EXT_INQUIRY_RESPONSE_CP_SIZE, &cp) < 0) + error("Unable to write EIR data: %s (%d)", + strerror(errno), errno); +} + +static void update_name(int index, const char *name) +{ + struct btd_adapter *adapter; + + adapter = manager_find_adapter_by_id(index); + if (adapter) + adapter_update_local_name(adapter, name); + + update_ext_inquiry_response(index); +} + +static void read_local_name_complete(int index, read_local_name_rp *rp) +{ + struct dev_info *dev = &devs[index]; + + DBG("hci%d status %u", index, rp->status); + + if (rp->status) + return; + + memcpy(dev->name, rp->name, 248); + + if (!dev->pending) { + update_name(index, (char *) rp->name); + return; + } + + hci_clear_bit(PENDING_NAME, &dev->pending); + + DBG("Got name for hci%d", index); + + /* Even though it shouldn't happen (assuming the kernel behaves + * properly) it seems like we might miss the very first + * initialization commands that the kernel sends. So check for + * it here (since read_local_name is one of the last init + * commands) and resend the first ones if we haven't seen + * their results yet */ + + if (hci_test_bit(PENDING_FEATURES, &dev->pending)) + hci_send_cmd(dev->sk, OGF_INFO_PARAM, + OCF_READ_LOCAL_FEATURES, 0, NULL); + + if (hci_test_bit(PENDING_VERSION, &dev->pending)) + hci_send_cmd(dev->sk, OGF_INFO_PARAM, + OCF_READ_LOCAL_VERSION, 0, NULL); + + if (!dev->pending && dev->up) + init_adapter(index); +} + +static void read_tx_power_complete(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + + read_inq_response_tx_power_level_rp *rp = ptr; + + DBG("hci%d status %u", index, rp->status); + + if (rp->status) + return; + + dev->tx_power = rp->level; + update_ext_inquiry_response(index); +} + +static void read_simple_pairing_mode_complete(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + read_simple_pairing_mode_rp *rp = ptr; + struct btd_adapter *adapter; + + DBG("hci%d status %u", index, rp->status); + + if (rp->status) + return; + + dev->ssp_mode = rp->mode; + update_ext_inquiry_response(index); + + adapter = manager_find_adapter(&dev->bdaddr); + if (!adapter) { + error("No matching adapter found"); + return; + } + + adapter_update_ssp_mode(adapter, rp->mode); +} + +static void read_local_ext_features_complete(int index, + const read_local_ext_features_rp *rp) +{ + struct btd_adapter *adapter; + + DBG("hci%d status %u", index, rp->status); + + if (rp->status) + return; + + adapter = manager_find_adapter_by_id(index); + if (!adapter) { + error("No matching adapter found"); + return; + } + + /* Local Extended feature page number is 1 */ + if (rp->page_num != 1) + return; + + btd_adapter_update_local_ext_features(adapter, rp->features); +} + +static void read_bd_addr_complete(int index, read_bd_addr_rp *rp) +{ + struct dev_info *dev = &devs[index]; + + DBG("hci%d status %u", index, rp->status); + + if (rp->status) + return; + + bacpy(&dev->bdaddr, &rp->bdaddr); + + if (!dev->pending) + return; + + hci_clear_bit(PENDING_BDADDR, &dev->pending); + + DBG("Got bdaddr for hci%d", index); + + if (!dev->pending && dev->up) + init_adapter(index); +} + +static inline void cmd_status(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + evt_cmd_status *evt = ptr; + uint16_t opcode = btohs(evt->opcode); + + if (opcode == cmd_opcode_pack(OGF_LINK_CTL, OCF_INQUIRY)) + start_inquiry(&dev->bdaddr, evt->status, FALSE); +} + +static void read_scan_complete(int index, uint8_t status, void *ptr) +{ + struct btd_adapter *adapter; + read_scan_enable_rp *rp = ptr; + + DBG("hci%d status %u", index, status); + + adapter = manager_find_adapter_by_id(index); + if (!adapter) { + error("Unable to find matching adapter"); + return; + } + + adapter_mode_changed(adapter, rp->enable); +} + +static int write_class(int index, uint32_t class) +{ + struct dev_info *dev = &devs[index]; + write_class_of_dev_cp cp; + + DBG("hci%d class 0x%06x", index, class); + + memcpy(cp.dev_class, &class, 3); + + if (hci_send_cmd(dev->sk, OGF_HOST_CTL, OCF_WRITE_CLASS_OF_DEV, + WRITE_CLASS_OF_DEV_CP_SIZE, &cp) < 0) + return -errno; + + dev->pending_cod = class; + + return 0; +} + +/* Limited Discoverable bit mask in CoD */ +#define LIMITED_BIT 0x002000 + +static int hciops_set_limited_discoverable(int index, gboolean limited) +{ + struct dev_info *dev = &devs[index]; + int num = (limited ? 2 : 1); + uint8_t lap[] = { 0x33, 0x8b, 0x9e, 0x00, 0x8b, 0x9e }; + write_current_iac_lap_cp cp; + + DBG("hci%d limited %d", index, limited); + + /* Check if limited bit needs to be set/reset */ + if (limited) + dev->wanted_cod |= LIMITED_BIT; + else + dev->wanted_cod &= ~LIMITED_BIT; + + /* If we dont need the toggling, save an unnecessary CoD write */ + if (dev->pending_cod || dev->wanted_cod == dev->current_cod) + return 0; + + /* + * 1: giac + * 2: giac + liac + */ + memset(&cp, 0, sizeof(cp)); + cp.num_current_iac = num; + memcpy(&cp.lap, lap, num * 3); + + if (hci_send_cmd(dev->sk, OGF_HOST_CTL, OCF_WRITE_CURRENT_IAC_LAP, + (num * 3 + 1), &cp) < 0) + return -errno; + + return write_class(index, dev->wanted_cod); +} + +static void write_class_complete(int index, uint8_t status) +{ + struct dev_info *dev = &devs[index]; + struct btd_adapter *adapter; + + if (status) + return; + + if (dev->pending_cod == 0) + return; + + dev->current_cod = dev->pending_cod; + dev->pending_cod = 0; + + adapter = manager_find_adapter(&dev->bdaddr); + if (adapter) + btd_adapter_class_changed(adapter, dev->current_cod); + + update_ext_inquiry_response(index); + + if (dev->wanted_cod == dev->current_cod) + return; + + if (dev->wanted_cod & LIMITED_BIT && + !(dev->current_cod & LIMITED_BIT)) + hciops_set_limited_discoverable(index, TRUE); + else if (!(dev->wanted_cod & LIMITED_BIT) && + (dev->current_cod & LIMITED_BIT)) + hciops_set_limited_discoverable(index, FALSE); + else + write_class(index, dev->wanted_cod); +} + +static void read_local_oob_data_complete(int index, uint8_t status, + read_local_oob_data_rp *rp) +{ + struct btd_adapter *adapter = manager_find_adapter_by_id(index); + + if (!adapter) + return; + + if (status) + oob_read_local_data_complete(adapter, NULL, NULL); + else + oob_read_local_data_complete(adapter, rp->hash, rp->randomizer); +} + +static inline void cmd_complete(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + evt_cmd_complete *evt = ptr; + uint16_t opcode = btohs(evt->opcode); + uint8_t status = *((uint8_t *) ptr + EVT_CMD_COMPLETE_SIZE); + + switch (opcode) { + case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_LOCAL_VERSION): + ptr += sizeof(evt_cmd_complete); + read_local_version_complete(index, ptr); + break; + case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_LOCAL_FEATURES): + ptr += sizeof(evt_cmd_complete); + read_local_features_complete(index, ptr); + break; + case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_LOCAL_EXT_FEATURES): + ptr += sizeof(evt_cmd_complete); + read_local_ext_features_complete(index, ptr); + break; + case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_BD_ADDR): + ptr += sizeof(evt_cmd_complete); + read_bd_addr_complete(index, ptr); + break; + case cmd_opcode_pack(OGF_LINK_CTL, OCF_PERIODIC_INQUIRY): + start_inquiry(&dev->bdaddr, status, TRUE); + break; + case cmd_opcode_pack(OGF_LINK_CTL, OCF_EXIT_PERIODIC_INQUIRY): + inquiry_complete(&dev->bdaddr, status, TRUE); + break; + case cmd_opcode_pack(OGF_LINK_CTL, OCF_INQUIRY_CANCEL): + inquiry_complete(&dev->bdaddr, status, FALSE); + break; + case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_LE_HOST_SUPPORTED): + write_le_host_complete(index, status); + break; + case cmd_opcode_pack(OGF_LE_CTL, OCF_LE_SET_SCAN_ENABLE): + btd_event_le_set_scan_enable_complete(&dev->bdaddr, status); + break; + case cmd_opcode_pack(OGF_HOST_CTL, OCF_CHANGE_LOCAL_NAME): + if (!status) + hci_send_cmd(dev->sk, OGF_HOST_CTL, + OCF_READ_LOCAL_NAME, 0, 0); + break; + case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_SCAN_ENABLE): + hci_send_cmd(dev->sk, OGF_HOST_CTL, OCF_READ_SCAN_ENABLE, + 0, NULL); + break; + case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_SCAN_ENABLE): + ptr += sizeof(evt_cmd_complete); + read_scan_complete(index, status, ptr); + break; + case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_CLASS_OF_DEV): + write_class_complete(index, status); + break; + case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_SIMPLE_PAIRING_MODE): + if (!status) + hci_send_cmd(dev->sk, OGF_HOST_CTL, + OCF_READ_SIMPLE_PAIRING_MODE, 0, NULL); + break; + case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_SIMPLE_PAIRING_MODE): + ptr += sizeof(evt_cmd_complete); + read_simple_pairing_mode_complete(index, ptr); + break; + case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_LOCAL_NAME): + ptr += sizeof(evt_cmd_complete); + read_local_name_complete(index, ptr); + break; + case cmd_opcode_pack(OGF_HOST_CTL, + OCF_READ_INQ_RESPONSE_TX_POWER_LEVEL): + ptr += sizeof(evt_cmd_complete); + read_tx_power_complete(index, ptr); + break; + case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_LOCAL_OOB_DATA): + ptr += sizeof(evt_cmd_complete); + read_local_oob_data_complete(index, status, ptr); + break; + }; +} + +static inline void remote_name_information(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + evt_remote_name_req_complete *evt = ptr; + char name[MAX_NAME_LENGTH + 1]; + + DBG("hci%d status %u", index, evt->status); + + memset(name, 0, sizeof(name)); + + if (!evt->status) + memcpy(name, evt->name, MAX_NAME_LENGTH); + + btd_event_remote_name(&dev->bdaddr, &evt->bdaddr, evt->status, name); +} + +static inline void remote_version_information(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + evt_read_remote_version_complete *evt = ptr; + struct bt_conn *conn; + + DBG("hci%d status %u", index, evt->status); + + if (evt->status) + return; + + conn = find_conn_by_handle(dev, btohs(evt->handle)); + if (conn == NULL) + return; + + write_version_info(&dev->bdaddr, &conn->bdaddr, + btohs(evt->manufacturer), evt->lmp_ver, + btohs(evt->lmp_subver)); +} + +static inline void inquiry_result(int index, int plen, void *ptr) +{ + struct dev_info *dev = &devs[index]; + uint8_t num = *(uint8_t *) ptr++; + int i; + + for (i = 0; i < num; i++) { + inquiry_info *info = ptr; + uint32_t class = info->dev_class[0] | + (info->dev_class[1] << 8) | + (info->dev_class[2] << 16); + + btd_event_device_found(&dev->bdaddr, &info->bdaddr, class, + 0, NULL); + ptr += INQUIRY_INFO_SIZE; + } +} + +static inline void inquiry_result_with_rssi(int index, int plen, void *ptr) +{ + struct dev_info *dev = &devs[index]; + uint8_t num = *(uint8_t *) ptr++; + int i; + + if (!num) + return; + + if ((plen - 1) / num == INQUIRY_INFO_WITH_RSSI_AND_PSCAN_MODE_SIZE) { + for (i = 0; i < num; i++) { + inquiry_info_with_rssi_and_pscan_mode *info = ptr; + uint32_t class = info->dev_class[0] + | (info->dev_class[1] << 8) + | (info->dev_class[2] << 16); + + btd_event_device_found(&dev->bdaddr, &info->bdaddr, + class, info->rssi, NULL); + ptr += INQUIRY_INFO_WITH_RSSI_AND_PSCAN_MODE_SIZE; + } + } else { + for (i = 0; i < num; i++) { + inquiry_info_with_rssi *info = ptr; + uint32_t class = info->dev_class[0] + | (info->dev_class[1] << 8) + | (info->dev_class[2] << 16); + + btd_event_device_found(&dev->bdaddr, &info->bdaddr, + class, info->rssi, NULL); + ptr += INQUIRY_INFO_WITH_RSSI_SIZE; + } + } +} + +static inline void extended_inquiry_result(int index, int plen, void *ptr) +{ + struct dev_info *dev = &devs[index]; + uint8_t num = *(uint8_t *) ptr++; + int i; + + for (i = 0; i < num; i++) { + extended_inquiry_info *info = ptr; + uint32_t class = info->dev_class[0] + | (info->dev_class[1] << 8) + | (info->dev_class[2] << 16); + + btd_event_device_found(&dev->bdaddr, &info->bdaddr, class, + info->rssi, info->data); + ptr += EXTENDED_INQUIRY_INFO_SIZE; + } +} + +static inline void remote_features_information(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + evt_read_remote_features_complete *evt = ptr; + struct bt_conn *conn; + + DBG("hci%d status %u", index, evt->status); + + if (evt->status) + return; + + conn = find_conn_by_handle(dev, btohs(evt->handle)); + if (conn == NULL) + return; + + write_features_info(&dev->bdaddr, &conn->bdaddr, evt->features, NULL); +} + +struct remote_version_req { + int index; + uint16_t handle; +}; + +static gboolean __get_remote_version(gpointer user_data) +{ + struct remote_version_req *req = user_data; + struct dev_info *dev = &devs[req->index]; + read_remote_version_cp cp; + + DBG("hci%d handle %u", req->index, req->handle); + + memset(&cp, 0, sizeof(cp)); + cp.handle = htobs(req->handle); + + hci_send_cmd(dev->sk, OGF_LINK_CTL, OCF_READ_REMOTE_VERSION, + READ_REMOTE_VERSION_CP_SIZE, &cp); + + return FALSE; +} + +static void get_remote_version(int index, uint16_t handle) +{ + struct remote_version_req *req; + + req = g_new0(struct remote_version_req, 1); + req->handle = handle; + req->index = index; + + g_timeout_add_seconds_full(G_PRIORITY_DEFAULT, 1, __get_remote_version, + req, g_free); +} + +static void conn_free(struct bt_conn *conn) +{ + if (conn->io != NULL) { + g_io_channel_shutdown(conn->io, TRUE, NULL); + g_io_channel_unref(conn->io); + } + + g_free(conn); +} + +static inline void conn_failed(int index, bdaddr_t *bdaddr, uint8_t status) +{ + struct dev_info *dev = &devs[index]; + struct bt_conn *conn; + + btd_event_conn_failed(&dev->bdaddr, bdaddr, status); + + conn = find_connection(dev, bdaddr); + if (conn == NULL) + return; + + bonding_complete(dev, conn, status); + + dev->connections = g_slist_remove(dev->connections, conn); + conn_free(conn); +} + +static inline void conn_complete(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + evt_conn_complete *evt = ptr; + char filename[PATH_MAX]; + char local_addr[18], peer_addr[18], *str; + struct bt_conn *conn; + + if (evt->link_type != ACL_LINK) + return; + + DBG("status 0x%02x", evt->status); + + if (evt->status != 0) { + conn_failed(index, &evt->bdaddr, evt->status); + return; + } + + conn = get_connection(dev, &evt->bdaddr); + conn->handle = btohs(evt->handle); + + btd_event_conn_complete(&dev->bdaddr, &evt->bdaddr); + + if (conn->secmode3) + bonding_complete(dev, conn, 0); + + /* check if the remote version needs be requested */ + ba2str(&dev->bdaddr, local_addr); + ba2str(&evt->bdaddr, peer_addr); + + create_name(filename, sizeof(filename), STORAGEDIR, local_addr, + "manufacturers"); + + str = textfile_get(filename, peer_addr); + if (!str) + get_remote_version(index, btohs(evt->handle)); + else + free(str); +} + +static inline void le_conn_complete(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + evt_le_connection_complete *evt = ptr; + char filename[PATH_MAX]; + char local_addr[18], peer_addr[18], *str; + struct bt_conn *conn; + + if (evt->status) { + btd_event_conn_failed(&dev->bdaddr, &evt->peer_bdaddr, + evt->status); + return; + } + + conn = get_connection(dev, &evt->peer_bdaddr); + conn->handle = btohs(evt->handle); + + btd_event_conn_complete(&dev->bdaddr, &evt->peer_bdaddr); + + /* check if the remote version needs be requested */ + ba2str(&dev->bdaddr, local_addr); + ba2str(&evt->peer_bdaddr, peer_addr); + + create_name(filename, sizeof(filename), STORAGEDIR, local_addr, + "manufacturers"); + + str = textfile_get(filename, peer_addr); + if (!str) + get_remote_version(index, btohs(evt->handle)); + else + free(str); +} + +static inline void disconn_complete(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + evt_disconn_complete *evt = ptr; + struct bt_conn *conn; + + DBG("handle %u status 0x%02x", btohs(evt->handle), evt->status); + + if (evt->status != 0) + return; + + conn = find_conn_by_handle(dev, btohs(evt->handle)); + if (conn == NULL) + return; + + dev->connections = g_slist_remove(dev->connections, conn); + + btd_event_disconn_complete(&dev->bdaddr, &conn->bdaddr); + + conn_free(conn); +} + +static inline void auth_complete(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + evt_auth_complete *evt = ptr; + struct bt_conn *conn; + + DBG("hci%d status %u", index, evt->status); + + conn = find_conn_by_handle(dev, btohs(evt->handle)); + if (conn == NULL) + return; + + bonding_complete(dev, conn, evt->status); +} + +static inline void simple_pairing_complete(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + evt_simple_pairing_complete *evt = ptr; + + DBG("hci%d status %u", index, evt->status); + + btd_event_simple_pairing_complete(&dev->bdaddr, &evt->bdaddr, + evt->status); +} + +static inline void conn_request(int index, void *ptr) +{ + struct dev_info *dev = &devs[index]; + evt_conn_request *evt = ptr; + uint32_t class = evt->dev_class[0] | (evt->dev_class[1] << 8) + | (evt->dev_class[2] << 16); + + btd_event_remote_class(&dev->bdaddr, &evt->bdaddr, class); +} + +static inline void le_advertising_report(int index, evt_le_meta_event *meta) +{ + struct dev_info *dev = &devs[index]; + le_advertising_info *info; + uint8_t num_reports; + const uint8_t RSSI_SIZE = 1; + + num_reports = meta->data[0]; + + info = (le_advertising_info *) &meta->data[1]; + btd_event_advertising_report(&dev->bdaddr, info); + num_reports--; + + while (num_reports--) { + info = (le_advertising_info *) (info->data + info->length + + RSSI_SIZE); + btd_event_advertising_report(&dev->bdaddr, info); + } +} + +static inline void le_metaevent(int index, void *ptr) +{ + evt_le_meta_event *meta = ptr; + + DBG("hci%d LE Meta Event %u", index, meta->subevent); + + switch (meta->subevent) { + case EVT_LE_ADVERTISING_REPORT: + le_advertising_report(index, meta); + break; + + case EVT_LE_CONN_COMPLETE: + le_conn_complete(index, meta->data); + break; + } +} + +static void stop_hci_dev(int index) +{ + struct dev_info *dev = &devs[index]; + + if (dev->sk < 0) + return; + + info("Stopping hci%d event socket", index); + + if (dev->watch_id > 0) + g_source_remove(dev->watch_id); + + if (dev->io != NULL) + g_io_channel_unref(dev->io); + + hci_close_dev(dev->sk); + + g_slist_foreach(dev->keys, (GFunc) g_free, NULL); + g_slist_free(dev->keys); + + g_slist_foreach(dev->uuids, (GFunc) g_free, NULL); + g_slist_free(dev->uuids); + + g_slist_foreach(dev->connections, (GFunc) conn_free, NULL); + g_slist_free(dev->connections); + + init_dev_info(index, -1, dev->registered, dev->already_up); +} + +static gboolean io_security_event(GIOChannel *chan, GIOCondition cond, + gpointer data) +{ + unsigned char buf[HCI_MAX_EVENT_SIZE], *ptr = buf; + int type, index = GPOINTER_TO_INT(data); + struct dev_info *dev = &devs[index]; + struct hci_dev_info di; + ssize_t len; + hci_event_hdr *eh; + evt_cmd_status *evt; + int fd; + + if (cond & (G_IO_NVAL | G_IO_HUP | G_IO_ERR)) { + stop_hci_dev(index); + return FALSE; + } + + fd = g_io_channel_unix_get_fd(chan); + + len = read(fd, buf, sizeof(buf)); + if (len < 0) { + if (errno == EAGAIN) + return TRUE; + stop_hci_dev(index); + return FALSE; + } + + type = *ptr++; + + if (type != HCI_EVENT_PKT) + return TRUE; + + eh = (hci_event_hdr *) ptr; + ptr += HCI_EVENT_HDR_SIZE; + + memset(&di, 0, sizeof(di)); + if (hci_devinfo(index, &di) == 0) { + bacpy(&dev->bdaddr, &di.bdaddr); + + if (ignore_device(&di)) + return TRUE; + } + + switch (eh->evt) { + case EVT_CMD_STATUS: + cmd_status(index, ptr); + break; + + case EVT_CMD_COMPLETE: + cmd_complete(index, ptr); + break; + + case EVT_REMOTE_NAME_REQ_COMPLETE: + remote_name_information(index, ptr); + break; + + case EVT_READ_REMOTE_VERSION_COMPLETE: + remote_version_information(index, ptr); + break; + + case EVT_READ_REMOTE_FEATURES_COMPLETE: + remote_features_information(index, ptr); + break; + + case EVT_REMOTE_HOST_FEATURES_NOTIFY: + remote_features_notify(index, ptr); + break; + + case EVT_INQUIRY_COMPLETE: + evt = (evt_cmd_status *) ptr; + inquiry_complete(&dev->bdaddr, evt->status, FALSE); + break; + + case EVT_INQUIRY_RESULT: + inquiry_result(index, eh->plen, ptr); + break; + + case EVT_INQUIRY_RESULT_WITH_RSSI: + inquiry_result_with_rssi(index, eh->plen, ptr); + break; + + case EVT_EXTENDED_INQUIRY_RESULT: + extended_inquiry_result(index, eh->plen, ptr); + break; + + case EVT_CONN_COMPLETE: + conn_complete(index, ptr); + break; + + case EVT_DISCONN_COMPLETE: + disconn_complete(index, ptr); + break; + + case EVT_AUTH_COMPLETE: + auth_complete(index, ptr); + break; + + case EVT_SIMPLE_PAIRING_COMPLETE: + simple_pairing_complete(index, ptr); + break; + + case EVT_CONN_REQUEST: + conn_request(index, ptr); + break; + case EVT_LE_META_EVENT: + le_metaevent(index, ptr); + break; + case EVT_PIN_CODE_REQ: + pin_code_request(index, (bdaddr_t *) ptr); + break; + + case EVT_LINK_KEY_REQ: + link_key_request(index, (bdaddr_t *) ptr); + break; + + case EVT_LINK_KEY_NOTIFY: + link_key_notify(index, ptr); + break; + + case EVT_RETURN_LINK_KEYS: + return_link_keys(index, ptr); + break; + + case EVT_IO_CAPABILITY_REQUEST: + io_capa_request(index, ptr); + break; + + case EVT_IO_CAPABILITY_RESPONSE: + io_capa_response(index, ptr); + break; + + case EVT_USER_CONFIRM_REQUEST: + user_confirm_request(index, ptr); + break; + + case EVT_USER_PASSKEY_REQUEST: + user_passkey_request(index, ptr); + break; + + case EVT_USER_PASSKEY_NOTIFY: + user_passkey_notify(index, ptr); + break; + + case EVT_REMOTE_OOB_DATA_REQUEST: + remote_oob_data_request(index, (bdaddr_t *) ptr); + break; + } + + return TRUE; +} + +static void start_hci_dev(int index) +{ + struct dev_info *dev = &devs[index]; + GIOChannel *chan = dev->io; + GIOCondition cond; + struct hci_filter flt; + + if (chan) + return; + + info("Listening for HCI events on hci%d", index); + + /* Set filter */ + hci_filter_clear(&flt); + hci_filter_set_ptype(HCI_EVENT_PKT, &flt); + hci_filter_set_event(EVT_CMD_STATUS, &flt); + hci_filter_set_event(EVT_CMD_COMPLETE, &flt); + hci_filter_set_event(EVT_PIN_CODE_REQ, &flt); + hci_filter_set_event(EVT_LINK_KEY_REQ, &flt); + hci_filter_set_event(EVT_LINK_KEY_NOTIFY, &flt); + hci_filter_set_event(EVT_RETURN_LINK_KEYS, &flt); + hci_filter_set_event(EVT_IO_CAPABILITY_REQUEST, &flt); + hci_filter_set_event(EVT_IO_CAPABILITY_RESPONSE, &flt); + hci_filter_set_event(EVT_USER_CONFIRM_REQUEST, &flt); + hci_filter_set_event(EVT_USER_PASSKEY_REQUEST, &flt); + hci_filter_set_event(EVT_REMOTE_OOB_DATA_REQUEST, &flt); + hci_filter_set_event(EVT_USER_PASSKEY_NOTIFY, &flt); + hci_filter_set_event(EVT_KEYPRESS_NOTIFY, &flt); + hci_filter_set_event(EVT_SIMPLE_PAIRING_COMPLETE, &flt); + hci_filter_set_event(EVT_AUTH_COMPLETE, &flt); + hci_filter_set_event(EVT_REMOTE_NAME_REQ_COMPLETE, &flt); + hci_filter_set_event(EVT_READ_REMOTE_VERSION_COMPLETE, &flt); + hci_filter_set_event(EVT_READ_REMOTE_FEATURES_COMPLETE, &flt); + hci_filter_set_event(EVT_REMOTE_HOST_FEATURES_NOTIFY, &flt); + hci_filter_set_event(EVT_INQUIRY_COMPLETE, &flt); + hci_filter_set_event(EVT_INQUIRY_RESULT, &flt); + hci_filter_set_event(EVT_INQUIRY_RESULT_WITH_RSSI, &flt); + hci_filter_set_event(EVT_EXTENDED_INQUIRY_RESULT, &flt); + hci_filter_set_event(EVT_CONN_REQUEST, &flt); + hci_filter_set_event(EVT_CONN_COMPLETE, &flt); + hci_filter_set_event(EVT_DISCONN_COMPLETE, &flt); + hci_filter_set_event(EVT_LE_META_EVENT, &flt); + if (setsockopt(dev->sk, SOL_HCI, HCI_FILTER, &flt, sizeof(flt)) < 0) { + error("Can't set filter on hci%d: %s (%d)", + index, strerror(errno), errno); + return; + } + + chan = g_io_channel_unix_new(dev->sk); + cond = G_IO_IN | G_IO_NVAL | G_IO_HUP | G_IO_ERR; + dev->watch_id = g_io_add_watch_full(chan, G_PRIORITY_LOW, cond, + io_security_event, + GINT_TO_POINTER(index), NULL); + dev->io = chan; + dev->pin_length = 0; + +} + +/* End of HCI event callbacks */ + +static gboolean child_exit(GIOChannel *io, GIOCondition cond, void *user_data) +{ + int status, fd = g_io_channel_unix_get_fd(io); + pid_t child_pid; + + if (read(fd, &child_pid, sizeof(child_pid)) != sizeof(child_pid)) { + error("child_exit: unable to read child pid from pipe"); + return TRUE; + } + + if (waitpid(child_pid, &status, 0) != child_pid) + error("waitpid(%d) failed", child_pid); + else + DBG("child %d exited", child_pid); + + return TRUE; +} + +static void at_child_exit(void) +{ + pid_t pid = getpid(); + + if (write(child_pipe[1], &pid, sizeof(pid)) != sizeof(pid)) + error("unable to write to child pipe"); +} + +static void device_devup_setup(int index) +{ + struct dev_info *dev = &devs[index]; + struct hci_dev_info di; + read_stored_link_key_cp cp; + + DBG("hci%d", index); + + if (hci_devinfo(index, &di) < 0) + return; + + if (ignore_device(&di)) + return; + + bacpy(&dev->bdaddr, &di.bdaddr); + memcpy(dev->features, di.features, 8); + + /* Set page timeout */ + if ((main_opts.flags & (1 << HCID_SET_PAGETO))) { + write_page_timeout_cp cp; + + cp.timeout = htobs(main_opts.pageto); + hci_send_cmd(dev->sk, OGF_HOST_CTL, OCF_WRITE_PAGE_TIMEOUT, + WRITE_PAGE_TIMEOUT_CP_SIZE, &cp); + } + + bacpy(&cp.bdaddr, BDADDR_ANY); + cp.read_all = 1; + hci_send_cmd(dev->sk, OGF_HOST_CTL, OCF_READ_STORED_LINK_KEY, + READ_STORED_LINK_KEY_CP_SIZE, &cp); + + if (!dev->pending) + init_adapter(index); +} + +static void init_pending(int index) +{ + struct dev_info *dev = &devs[index]; + + hci_set_bit(PENDING_BDADDR, &dev->pending); + hci_set_bit(PENDING_VERSION, &dev->pending); + hci_set_bit(PENDING_FEATURES, &dev->pending); + hci_set_bit(PENDING_NAME, &dev->pending); +} + +static struct dev_info *init_device(int index, gboolean already_up) +{ + struct dev_info *dev; + struct hci_dev_req dr; + int dd; + pid_t pid; + + DBG("hci%d", index); + + dd = hci_open_dev(index); + if (dd < 0) { + error("Unable to open hci%d: %s (%d)", index, + strerror(errno), errno); + return NULL; + } + + if (index > max_dev) { + max_dev = index; + devs = g_realloc(devs, sizeof(devs[0]) * (max_dev + 1)); + } + + dev = init_dev_info(index, dd, FALSE, already_up); + init_pending(index); + start_hci_dev(index); + + /* Avoid forking if nothing else has to be done */ + if (already_up) + return dev; + + /* Do initialization in the separate process */ + pid = fork(); + switch (pid) { + case 0: + atexit(at_child_exit); + break; + case -1: + error("Fork failed. Can't init device hci%d: %s (%d)", + index, strerror(errno), errno); + default: + DBG("child %d forked", pid); + return dev; + } + + memset(&dr, 0, sizeof(dr)); + dr.dev_id = index; + + /* Set link mode */ + dr.dev_opt = main_opts.link_mode; + if (ioctl(dd, HCISETLINKMODE, (unsigned long) &dr) < 0) + error("Can't set link mode on hci%d: %s (%d)", + index, strerror(errno), errno); + + /* Start HCI device */ + if (ioctl(dd, HCIDEVUP, index) < 0 && errno != EALREADY) { + error("Can't init device hci%d: %s (%d)", + index, strerror(errno), errno); + goto fail; + } + + hci_close_dev(dd); + exit(0); + +fail: + hci_close_dev(dd); + exit(1); +} + +static void init_conn_list(int index) +{ + struct dev_info *dev = &devs[index]; + struct hci_conn_list_req *cl; + struct hci_conn_info *ci; + int err, i; + + DBG("hci%d", index); + + cl = g_malloc0(10 * sizeof(*ci) + sizeof(*cl)); + + cl->dev_id = index; + cl->conn_num = 10; + ci = cl->conn_info; + + if (ioctl(dev->sk, HCIGETCONNLIST, cl) < 0) { + error("Unable to get connection list: %s (%d)", + strerror(errno), errno); + goto failed; + } + + for (i = 0; i < cl->conn_num; i++, ci++) { + struct bt_conn *conn; + + if (ci->type != ACL_LINK) + continue; + + conn = get_connection(dev, &ci->bdaddr); + conn->handle = ci->handle; + } + + err = 0; + +failed: + g_free(cl); +} + +static void device_event(int event, int index) +{ + switch (event) { + case HCI_DEV_REG: + info("HCI dev %d registered", index); + init_device(index, FALSE); + break; + + case HCI_DEV_UNREG: + info("HCI dev %d unregistered", index); + stop_hci_dev(index); + if (devs[index].registered) + btd_manager_unregister_adapter(index); + break; + + case HCI_DEV_UP: + info("HCI dev %d up", index); + devs[index].up = TRUE; + device_devup_setup(index); + break; + + case HCI_DEV_DOWN: + info("HCI dev %d down", index); + devs[index].up = FALSE; + devs[index].pending_cod = 0; + devs[index].cache_enable = TRUE; + if (!devs[index].pending) { + struct btd_adapter *adapter; + + adapter = manager_find_adapter_by_id(index); + if (adapter) + btd_adapter_stop(adapter); + + init_pending(index); + } + break; + } +} + +static gboolean init_known_adapters(gpointer user_data) +{ + struct hci_dev_list_req *dl; + struct hci_dev_req *dr; + int i, err, ctl = GPOINTER_TO_INT(user_data); + size_t req_size; + + DBG(""); + + req_size = HCI_MAX_DEV * sizeof(struct hci_dev_req) + sizeof(uint16_t); + + dl = g_try_malloc0(req_size); + if (!dl) { + error("Can't allocate devlist buffer"); + return FALSE; + } + + dl->dev_num = HCI_MAX_DEV; + dr = dl->dev_req; + + if (ioctl(ctl, HCIGETDEVLIST, dl) < 0) { + err = -errno; + error("Can't get device list: %s (%d)", strerror(-err), -err); + g_free(dl); + return FALSE; + } + + for (i = 0; i < dl->dev_num; i++, dr++) { + struct dev_info *dev; + gboolean already_up; + + already_up = hci_test_bit(HCI_UP, &dr->dev_opt); + + dev = init_device(dr->dev_id, already_up); + if (dev == NULL) + continue; + + if (!dev->already_up) + continue; + + init_conn_list(dr->dev_id); + + dev->pending = 0; + hci_set_bit(PENDING_VERSION, &dev->pending); + hci_send_cmd(dev->sk, OGF_INFO_PARAM, + OCF_READ_LOCAL_VERSION, 0, NULL); + device_event(HCI_DEV_UP, dr->dev_id); + } + + g_free(dl); + + return FALSE; +} + +static gboolean io_stack_event(GIOChannel *chan, GIOCondition cond, + gpointer data) +{ + unsigned char buf[HCI_MAX_FRAME_SIZE], *ptr; + evt_stack_internal *si; + evt_si_device *sd; + hci_event_hdr *eh; + int type, fd; + ssize_t len; + + ptr = buf; + + fd = g_io_channel_unix_get_fd(chan); + + len = read(fd, buf, sizeof(buf)); + if (len < 0) { + if (errno == EAGAIN) + return TRUE; + + error("Read from control socket failed: %s (%d)", + strerror(errno), errno); + return FALSE; + } + + type = *ptr++; + + if (type != HCI_EVENT_PKT) + return TRUE; + + eh = (hci_event_hdr *) ptr; + if (eh->evt != EVT_STACK_INTERNAL) + return TRUE; + + ptr += HCI_EVENT_HDR_SIZE; + + si = (evt_stack_internal *) ptr; + switch (si->type) { + case EVT_SI_DEVICE: + sd = (void *) &si->data; + device_event(sd->event, sd->dev_id); + break; + } + + return TRUE; +} + +static int hciops_setup(void) +{ + struct sockaddr_hci addr; + struct hci_filter flt; + GIOChannel *ctl_io, *child_io; + int sock, err; + + DBG(""); + + if (child_pipe[0] != -1) + return -EALREADY; + + if (pipe(child_pipe) < 0) { + err = -errno; + error("pipe(): %s (%d)", strerror(-err), -err); + return err; + } + + child_io = g_io_channel_unix_new(child_pipe[0]); + g_io_channel_set_close_on_unref(child_io, TRUE); + child_io_id = g_io_add_watch(child_io, + G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL, + child_exit, NULL); + g_io_channel_unref(child_io); + + /* Create and bind HCI socket */ + sock = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI); + if (sock < 0) { + err = -errno; + error("Can't open HCI socket: %s (%d)", strerror(-err), + -err); + return err; + } + + /* Set filter */ + hci_filter_clear(&flt); + hci_filter_set_ptype(HCI_EVENT_PKT, &flt); + hci_filter_set_event(EVT_STACK_INTERNAL, &flt); + if (setsockopt(sock, SOL_HCI, HCI_FILTER, &flt, sizeof(flt)) < 0) { + err = -errno; + error("Can't set filter: %s (%d)", strerror(-err), -err); + return err; + } + + memset(&addr, 0, sizeof(addr)); + addr.hci_family = AF_BLUETOOTH; + addr.hci_dev = HCI_DEV_NONE; + if (bind(sock, (struct sockaddr *) &addr, sizeof(addr)) < 0) { + err = -errno; + error("Can't bind HCI socket: %s (%d)", strerror(-err), -err); + return err; + } + + ctl_io = g_io_channel_unix_new(sock); + g_io_channel_set_close_on_unref(ctl_io, TRUE); + + ctl_io_id = g_io_add_watch(ctl_io, G_IO_IN, io_stack_event, NULL); + + g_io_channel_unref(ctl_io); + + g_idle_add(init_known_adapters, GINT_TO_POINTER(sock)); + + return 0; +} + +static void hciops_cleanup(void) +{ + int i; + + DBG(""); + + for (i = 0; i <= max_dev; i++) + stop_hci_dev(i); + + g_free(devs); + devs = NULL; + max_dev = -1; + + if (child_io_id) { + g_source_remove(child_io_id); + child_io_id = 0; + } + + if (ctl_io_id) { + g_source_remove(ctl_io_id); + ctl_io_id = 0; + } + + if (child_pipe[0] >= 0) { + close(child_pipe[0]); + child_pipe[0] = -1; + } + + if (child_pipe[1] >= 0) { + close(child_pipe[1]); + child_pipe[1] = -1; + } +} + +static int hciops_set_powered(int index, gboolean powered) +{ + struct dev_info *dev = &devs[index]; + int err; + + DBG("hci%d powered %d", index, powered); + + if (powered == FALSE) + return hciops_power_off(index); + + if (ioctl(dev->sk, HCIDEVUP, index) == 0) + return 0; + + if (errno == EALREADY) + return 0; + + err = -errno; + error("Can't init device hci%d: %s (%d)", + index, strerror(-err), -err); + + return err; +} + +static int hciops_set_dev_class(int index, uint8_t major, uint8_t minor) +{ + struct dev_info *dev = &devs[index]; + int err; + + DBG("hci%d major %u minor %u", index, major, minor); + + /* Update only the major and minor class bits keeping remaining bits + * intact*/ + dev->wanted_cod &= 0xffe000; + dev->wanted_cod |= ((major & 0x1f) << 8) | minor; + + if (dev->wanted_cod == dev->current_cod || + dev->cache_enable || dev->pending_cod) + return 0; + + DBG("Changing Major/Minor class to 0x%06x", dev->wanted_cod); + + err = write_class(index, dev->wanted_cod); + if (err < 0) + error("Adapter class update failed: %s (%d)", + strerror(-err), -err); + + return err; +} + +static int hciops_start_inquiry(int index, uint8_t length, gboolean periodic) +{ + struct dev_info *dev = &devs[index]; + uint8_t lap[3] = { 0x33, 0x8b, 0x9e }; + int err; + + DBG("hci%d length %u periodic %d", index, length, periodic); + + if (periodic) { + periodic_inquiry_cp cp; + + memset(&cp, 0, sizeof(cp)); + memcpy(&cp.lap, lap, 3); + cp.max_period = htobs(24); + cp.min_period = htobs(16); + cp.length = length; + cp.num_rsp = 0x00; + + err = hci_send_cmd(dev->sk, OGF_LINK_CTL, + OCF_PERIODIC_INQUIRY, + PERIODIC_INQUIRY_CP_SIZE, &cp); + } else { + inquiry_cp inq_cp; + + memset(&inq_cp, 0, sizeof(inq_cp)); + memcpy(&inq_cp.lap, lap, 3); + inq_cp.length = length; + inq_cp.num_rsp = 0x00; + + err = hci_send_cmd(dev->sk, OGF_LINK_CTL, + OCF_INQUIRY, INQUIRY_CP_SIZE, &inq_cp); + } + + if (err < 0) + err = -errno; + + return err; +} + +static int le_set_scan_enable(int index, uint8_t enable) +{ + struct dev_info *dev = &devs[index]; + le_set_scan_enable_cp cp; + + DBG("hci%d enable %u", index, enable); + + memset(&cp, 0, sizeof(cp)); + cp.enable = enable; + cp.filter_dup = 0; + + if (hci_send_cmd(dev->sk, OGF_LE_CTL, OCF_LE_SET_SCAN_ENABLE, + LE_SET_SCAN_ENABLE_CP_SIZE, &cp) < 0) + return -errno; + + return 0; +} + +static int hciops_start_scanning(int index) +{ + struct dev_info *dev = &devs[index]; + le_set_scan_parameters_cp cp; + + DBG("hci%d", index); + + memset(&cp, 0, sizeof(cp)); + cp.type = 0x01; /* Active scanning */ + /* The recommended value for scan interval and window is 11.25 msec. + * It is calculated by: time = n * 0.625 msec */ + cp.interval = htobs(0x0012); + cp.window = htobs(0x0012); + cp.own_bdaddr_type = 0; /* Public address */ + cp.filter = 0; /* Accept all adv packets */ + + if (hci_send_cmd(dev->sk, OGF_LE_CTL, OCF_LE_SET_SCAN_PARAMETERS, + LE_SET_SCAN_PARAMETERS_CP_SIZE, &cp) < 0) + return -errno; + + return le_set_scan_enable(index, 1); +} + +static int hciops_stop_scanning(int index) +{ + DBG("hci%d", index); + + return le_set_scan_enable(index, 0); +} + +static int hciops_resolve_name(int index, bdaddr_t *bdaddr) +{ + struct dev_info *dev = &devs[index]; + remote_name_req_cp cp; + char addr[18]; + + ba2str(bdaddr, addr); + DBG("hci%d dba %s", index, addr); + + memset(&cp, 0, sizeof(cp)); + bacpy(&cp.bdaddr, bdaddr); + cp.pscan_rep_mode = 0x02; + + if (hci_send_cmd(dev->sk, OGF_LINK_CTL, OCF_REMOTE_NAME_REQ, + REMOTE_NAME_REQ_CP_SIZE, &cp) < 0) + return -errno; + + return 0; +} + +static int hciops_set_name(int index, const char *name) +{ + struct dev_info *dev = &devs[index]; + change_local_name_cp cp; + + DBG("hci%d, name %s", index, name); + + memset(&cp, 0, sizeof(cp)); + strncpy((char *) cp.name, name, sizeof(cp.name)); + + if (hci_send_cmd(dev->sk, OGF_HOST_CTL, OCF_CHANGE_LOCAL_NAME, + CHANGE_LOCAL_NAME_CP_SIZE, &cp) < 0) + return -errno; + + memcpy(dev->name, cp.name, 248); + update_ext_inquiry_response(index); + + return 0; +} + +static int hciops_cancel_resolve_name(int index, bdaddr_t *bdaddr) +{ + struct dev_info *dev = &devs[index]; + remote_name_req_cancel_cp cp; + char addr[18]; + + ba2str(bdaddr, addr); + DBG("hci%d dba %s", index, addr); + + memset(&cp, 0, sizeof(cp)); + bacpy(&cp.bdaddr, bdaddr); + + if (hci_send_cmd(dev->sk, OGF_LINK_CTL, OCF_REMOTE_NAME_REQ_CANCEL, + REMOTE_NAME_REQ_CANCEL_CP_SIZE, &cp) < 0) + return -errno; + + return 0; +} + +static int hciops_fast_connectable(int index, gboolean enable) +{ + struct dev_info *dev = &devs[index]; + write_page_activity_cp cp; + uint8_t type; + + DBG("hci%d enable %d", index, enable); + + if (enable) { + type = PAGE_SCAN_TYPE_INTERLACED; + cp.interval = 0x0024; /* 22.5 msec page scan interval */ + } else { + type = PAGE_SCAN_TYPE_STANDARD; /* default */ + cp.interval = 0x0800; /* default 1.28 sec page scan */ + } + + cp.window = 0x0012; /* default 11.25 msec page scan window */ + + if (hci_send_cmd(dev->sk, OGF_HOST_CTL, OCF_WRITE_PAGE_ACTIVITY, + WRITE_PAGE_ACTIVITY_CP_SIZE, &cp) < 0) + return -errno; + else if (hci_send_cmd(dev->sk, OGF_HOST_CTL, + OCF_WRITE_PAGE_SCAN_TYPE, 1, &type) < 0) + return -errno; + + return 0; +} + +static int hciops_read_clock(int index, bdaddr_t *bdaddr, int which, + int timeout, uint32_t *clock, + uint16_t *accuracy) +{ + struct dev_info *dev = &devs[index]; + uint16_t handle = 0; + char addr[18]; + int ret; + + ba2str(bdaddr, addr); + DBG("hci%d addr %s which %d timeout %d", index, addr, which, timeout); + + ret = get_handle(index, bdaddr, &handle); + if (ret < 0) + return ret; + + if (hci_read_clock(dev->sk, htobs(handle), which, clock, accuracy, + timeout) < 0) + return -errno; + + return 0; +} + +static int hciops_read_bdaddr(int index, bdaddr_t *bdaddr) +{ + struct dev_info *dev = &devs[index]; + + DBG("hci%d", index); + + bacpy(bdaddr, &dev->bdaddr); + + return 0; +} + +static int hciops_block_device(int index, bdaddr_t *bdaddr) +{ + struct dev_info *dev = &devs[index]; + char addr[18]; + + ba2str(bdaddr, addr); + DBG("hci%d dba %s", index, addr); + + if (ioctl(dev->sk, HCIBLOCKADDR, bdaddr) < 0) + return -errno; + + return 0; +} + +static int hciops_unblock_device(int index, bdaddr_t *bdaddr) +{ + struct dev_info *dev = &devs[index]; + char addr[18]; + + ba2str(bdaddr, addr); + DBG("hci%d dba %s", index, addr); + + if (ioctl(dev->sk, HCIUNBLOCKADDR, bdaddr) < 0) + return -errno; + + return 0; +} + +static int hciops_get_conn_list(int index, GSList **conns) +{ + struct dev_info *dev = &devs[index]; + GSList *l; + + DBG("hci%d", index); + + *conns = NULL; + + for (l = dev->connections; l != NULL; l = g_slist_next(l)) { + struct bt_conn *conn = l->data; + + *conns = g_slist_append(*conns, + g_memdup(&conn->bdaddr, sizeof(bdaddr_t))); + } + + return 0; +} + +static int hciops_read_local_version(int index, struct hci_version *ver) +{ + struct dev_info *dev = &devs[index]; + + DBG("hci%d", index); + + memcpy(ver, &dev->ver, sizeof(*ver)); + + return 0; +} + +static int hciops_read_local_features(int index, uint8_t *features) +{ + struct dev_info *dev = &devs[index]; + + DBG("hci%d", index); + + memcpy(features, dev->features, 8); + + return 0; +} + +static int hciops_disconnect(int index, bdaddr_t *bdaddr) +{ + DBG("hci%d", index); + + return disconnect_addr(index, bdaddr, HCI_OE_USER_ENDED_CONNECTION); +} + +static int hciops_remove_bonding(int index, bdaddr_t *bdaddr) +{ + struct dev_info *dev = &devs[index]; + delete_stored_link_key_cp cp; + GSList *match; + char addr[18]; + + ba2str(bdaddr, addr); + DBG("hci%d dba %s", index, addr); + + match = g_slist_find_custom(dev->keys, bdaddr, (GCompareFunc) bacmp); + if (match) { + g_free(match->data); + dev->keys = g_slist_delete_link(dev->keys, match); + } + + memset(&cp, 0, sizeof(cp)); + bacpy(&cp.bdaddr, bdaddr); + + /* Delete the link key from the Bluetooth chip */ + if (hci_send_cmd(dev->sk, OGF_HOST_CTL, OCF_DELETE_STORED_LINK_KEY, + DELETE_STORED_LINK_KEY_CP_SIZE, &cp) < 0) + return -errno; + + return 0; +} + +static int hciops_pincode_reply(int index, bdaddr_t *bdaddr, const char *pin) +{ + struct dev_info *dev = &devs[index]; + char addr[18]; + int err; + + ba2str(bdaddr, addr); + DBG("hci%d dba %s", index, addr); + + if (pin) { + pin_code_reply_cp pr; + size_t len = strlen(pin); + + dev->pin_length = len; + + memset(&pr, 0, sizeof(pr)); + bacpy(&pr.bdaddr, bdaddr); + memcpy(pr.pin_code, pin, len); + pr.pin_len = len; + err = hci_send_cmd(dev->sk, OGF_LINK_CTL, + OCF_PIN_CODE_REPLY, + PIN_CODE_REPLY_CP_SIZE, &pr); + } else + err = hci_send_cmd(dev->sk, OGF_LINK_CTL, + OCF_PIN_CODE_NEG_REPLY, 6, bdaddr); + + if (err < 0) + err = -errno; + + return err; +} + +static int hciops_passkey_reply(int index, bdaddr_t *bdaddr, uint32_t passkey) +{ + struct dev_info *dev = &devs[index]; + char addr[18]; + int err; + + ba2str(bdaddr, addr); + DBG("hci%d dba %s", index, addr); + + if (passkey != INVALID_PASSKEY) { + user_passkey_reply_cp cp; + + memset(&cp, 0, sizeof(cp)); + bacpy(&cp.bdaddr, bdaddr); + cp.passkey = passkey; + + err = hci_send_cmd(dev->sk, OGF_LINK_CTL, + OCF_USER_PASSKEY_REPLY, + USER_PASSKEY_REPLY_CP_SIZE, &cp); + } else + err = hci_send_cmd(dev->sk, OGF_LINK_CTL, + OCF_USER_PASSKEY_NEG_REPLY, 6, bdaddr); + + if (err < 0) + err = -errno; + + return err; +} + +static int hciops_enable_le(int index) +{ + struct dev_info *dev = &devs[index]; + write_le_host_supported_cp cp; + + DBG("hci%d", index); + + if (!(dev->features[4] & LMP_LE)) + return -ENOTSUP; + + cp.le = 0x01; + cp.simul = (dev->features[6] & LMP_LE_BREDR) ? 0x01 : 0x00; + + if (hci_send_cmd(dev->sk, OGF_HOST_CTL, + OCF_WRITE_LE_HOST_SUPPORTED, + WRITE_LE_HOST_SUPPORTED_CP_SIZE, &cp) < 0) + return -errno; + + return 0; +} + +static uint8_t generate_service_class(int index) +{ + struct dev_info *dev = &devs[index]; + GSList *l; + uint8_t val = 0; + + for (l = dev->uuids; l != NULL; l = g_slist_next(l)) { + struct uuid_info *uuid = l->data; + + val |= uuid->svc_hint; + } + + return val; +} + +static int update_service_classes(int index) +{ + struct dev_info *dev = &devs[index]; + uint8_t value; + int err; + + value = generate_service_class(index); + + DBG("hci%d value %u", index, value); + + /* Update only the service class, keep the limited bit, + * major/minor class bits intact */ + dev->wanted_cod &= 0x00ffff; + dev->wanted_cod |= (value << 16); + + /* If the cache is enabled or an existing CoD write is in progress + * just bail out */ + if (dev->cache_enable || dev->pending_cod) + return 0; + + /* If we already have the CoD we want, update EIR and return */ + if (dev->current_cod == dev->wanted_cod) { + update_ext_inquiry_response(index); + return 0; + } + + DBG("Changing service classes to 0x%06x", dev->wanted_cod); + + err = write_class(index, dev->wanted_cod); + if (err < 0) + error("Adapter class update failed: %s (%d)", + strerror(-err), -err); + + return err; +} + +static int hciops_add_uuid(int index, uuid_t *uuid, uint8_t svc_hint) +{ + struct dev_info *dev = &devs[index]; + struct uuid_info *info; + + DBG("hci%d", index); + + info = g_new0(struct uuid_info, 1); + memcpy(&info->uuid, uuid, sizeof(*uuid)); + info->svc_hint = svc_hint; + + dev->uuids = g_slist_append(dev->uuids, info); + + return update_service_classes(index); +} + +static int hciops_remove_uuid(int index, uuid_t *uuid) +{ + struct dev_info *dev = &devs[index]; + GSList *match; + + match = g_slist_find_custom(dev->uuids, uuid, sdp_uuid_cmp); + if (match) { + g_free(match->data); + dev->uuids = g_slist_delete_link(dev->uuids, match); + } + + DBG("hci%d", index); + + return update_service_classes(index); +} + +static int hciops_disable_cod_cache(int index) +{ + struct dev_info *dev = &devs[index]; + + DBG("hci%d cache_enable %d", index, dev->cache_enable); + + if (!dev->cache_enable) + return 0; + + DBG("hci%d current_cod 0x%06x wanted_cod 0x%06x", index, + dev->current_cod, dev->wanted_cod); + + /* Disable and flush svc cache. All successive service class + * updates * will be written to the device */ + dev->cache_enable = FALSE; + + if (dev->current_cod == dev->wanted_cod) { + update_ext_inquiry_response(index); + return 0; + } + + return write_class(index, dev->wanted_cod); +} + +static int hciops_restore_powered(int index) +{ + struct dev_info *dev = &devs[index]; + + if (!dev->already_up && dev->up) + return hciops_power_off(index); + + return 0; +} + +static int hciops_load_keys(int index, GSList *keys, gboolean debug_keys) +{ + struct dev_info *dev = &devs[index]; + + DBG("hci%d keys %d debug_keys %d", index, g_slist_length(keys), + debug_keys); + + if (dev->keys != NULL) + return -EEXIST; + + dev->keys = keys; + dev->debug_keys = debug_keys; + + return 0; +} + +static int hciops_set_io_capability(int index, uint8_t io_capability) +{ + struct dev_info *dev = &devs[index]; + + dev->io_capability = io_capability; + + return 0; +} + +static int request_authentication(int index, bdaddr_t *bdaddr) +{ + struct dev_info *dev = &devs[index]; + auth_requested_cp cp; + uint16_t handle; + int err; + + DBG("hci%d", index); + + err = get_handle(index, bdaddr, &handle); + if (err < 0) + return err; + + memset(&cp, 0, sizeof(cp)); + cp.handle = htobs(handle); + + if (hci_send_cmd(dev->sk, OGF_LINK_CTL, OCF_AUTH_REQUESTED, + AUTH_REQUESTED_CP_SIZE, &cp) < 0) + return -errno; + + return 0; +} + +static void bonding_connect_cb(GIOChannel *io, GError *err, gpointer user_data) +{ + struct bt_conn *conn = user_data; + struct dev_info *dev = conn->dev; + + if (!conn->io) { + if (!err) + g_io_channel_shutdown(io, TRUE, NULL); + return; + } + + if (err) + /* Wait proper error to be propagated by bonding complete */ + return; + + if (request_authentication(dev->id, &conn->bdaddr) < 0) + goto failed; + + return; + +failed: + bonding_complete(dev, conn, HCI_UNSPECIFIED_ERROR); +} + +static int hciops_create_bonding(int index, bdaddr_t *bdaddr, uint8_t io_cap) +{ + struct dev_info *dev = &devs[index]; + BtIOSecLevel sec_level; + struct bt_conn *conn; + GError *err = NULL; + + conn = get_connection(dev, bdaddr); + + if (conn->io != NULL) + return -EBUSY; + + conn->loc_cap = io_cap; + + /* If our IO capability is NoInputNoOutput use medium security + * level (i.e. don't require MITM protection) else use high + * security level */ + if (io_cap == 0x03) + sec_level = BT_IO_SEC_MEDIUM; + else + sec_level = BT_IO_SEC_HIGH; + + conn->io = bt_io_connect(BT_IO_L2RAW, bonding_connect_cb, conn, + NULL, &err, + BT_IO_OPT_SOURCE_BDADDR, &dev->bdaddr, + BT_IO_OPT_DEST_BDADDR, bdaddr, + BT_IO_OPT_SEC_LEVEL, sec_level, + BT_IO_OPT_INVALID); + if (conn->io == NULL) { + error("bt_io_connect: %s", err->message); + g_error_free(err); + return -EIO; + } + + conn->bonding_initiator = TRUE; + + return 0; +} + +static int hciops_cancel_bonding(int index, bdaddr_t *bdaddr) +{ + struct dev_info *dev = &devs[index]; + struct bt_conn *conn; + + DBG("hci%d", index); + + conn = find_connection(dev, bdaddr); + if (conn == NULL || conn->io == NULL) + return -ENOTCONN; + + g_io_channel_shutdown(conn->io, TRUE, NULL); + g_io_channel_unref(conn->io); + conn->io = NULL; + + return 0; +} + +static int hciops_read_local_oob_data(int index) +{ + struct dev_info *dev = &devs[index]; + + DBG("hci%d", index); + + if (hci_send_cmd(dev->sk, OGF_HOST_CTL, OCF_READ_LOCAL_OOB_DATA, 0, 0) + < 0) + return -errno; + + return 0; +} + +static int hciops_add_remote_oob_data(int index, bdaddr_t *bdaddr, + uint8_t *hash, uint8_t *randomizer) +{ + char addr[18]; + struct dev_info *dev = &devs[index]; + GSList *match; + struct oob_data *data; + + ba2str(bdaddr, addr); + DBG("hci%d bdaddr %s", index, addr); + + match = g_slist_find_custom(dev->oob_data, &bdaddr, oob_bdaddr_cmp); + + if (match) { + data = match->data; + } else { + data = g_new(struct oob_data, 1); + bacpy(&data->bdaddr, bdaddr); + dev->oob_data = g_slist_prepend(dev->oob_data, data); + } + + memcpy(data->hash, hash, sizeof(data->hash)); + memcpy(data->randomizer, randomizer, sizeof(data->randomizer)); + + return 0; +} + +static int hciops_remove_remote_oob_data(int index, bdaddr_t *bdaddr) +{ + char addr[18]; + struct dev_info *dev = &devs[index]; + GSList *match; + + ba2str(bdaddr, addr); + DBG("hci%d bdaddr %s", index, addr); + + match = g_slist_find_custom(dev->oob_data, &bdaddr, oob_bdaddr_cmp); + + if (!match) + return -ENOENT; + + g_free(match->data); + dev->oob_data = g_slist_delete_link(dev->oob_data, match); + + return 0; +} + +static struct btd_adapter_ops hci_ops = { + .setup = hciops_setup, + .cleanup = hciops_cleanup, + .set_powered = hciops_set_powered, + .set_discoverable = hciops_set_discoverable, + .set_pairable = hciops_set_pairable, + .set_limited_discoverable = hciops_set_limited_discoverable, + .start_inquiry = hciops_start_inquiry, + .stop_inquiry = hciops_stop_inquiry, + .start_scanning = hciops_start_scanning, + .stop_scanning = hciops_stop_scanning, + .resolve_name = hciops_resolve_name, + .cancel_resolve_name = hciops_cancel_resolve_name, + .set_name = hciops_set_name, + .set_dev_class = hciops_set_dev_class, + .set_fast_connectable = hciops_fast_connectable, + .read_clock = hciops_read_clock, + .read_bdaddr = hciops_read_bdaddr, + .block_device = hciops_block_device, + .unblock_device = hciops_unblock_device, + .get_conn_list = hciops_get_conn_list, + .read_local_version = hciops_read_local_version, + .read_local_features = hciops_read_local_features, + .disconnect = hciops_disconnect, + .remove_bonding = hciops_remove_bonding, + .pincode_reply = hciops_pincode_reply, + .confirm_reply = hciops_confirm_reply, + .passkey_reply = hciops_passkey_reply, + .enable_le = hciops_enable_le, + .encrypt_link = hciops_encrypt_link, + .set_did = hciops_set_did, + .add_uuid = hciops_add_uuid, + .remove_uuid = hciops_remove_uuid, + .disable_cod_cache = hciops_disable_cod_cache, + .restore_powered = hciops_restore_powered, + .load_keys = hciops_load_keys, + .set_io_capability = hciops_set_io_capability, + .create_bonding = hciops_create_bonding, + .cancel_bonding = hciops_cancel_bonding, + .read_local_oob_data = hciops_read_local_oob_data, + .add_remote_oob_data = hciops_add_remote_oob_data, + .remove_remote_oob_data = hciops_remove_remote_oob_data, +}; + +static int hciops_init(void) +{ + DBG(""); + return btd_register_adapter_ops(&hci_ops, FALSE); +} + +static void hciops_exit(void) +{ + DBG(""); + btd_adapter_cleanup_ops(&hci_ops); +} + +BLUETOOTH_PLUGIN_DEFINE(hciops, VERSION, + BLUETOOTH_PLUGIN_PRIORITY_LOW, hciops_init, hciops_exit) |