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qemu / qemu / ad739706bbadee49f164b4b7f4c7f5454ddf83cd / . / hw / bt / hci.c
blob: 7d5220509318616b0bcf355f18bf5c3eda5abd5b [file] [log] [blame]
/*
* QEMU Bluetooth HCI logic.
*
* Copyright (C) 2007 OpenMoko, Inc.
* Copyright (C) 2008 Andrzej Zaborowski <balrog@zabor.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, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "qemu-common.h"
#include "qemu/timer.h"
#include "hw/usb.h"
#include "sysemu/bt.h"
#include "hw/bt.h"
#include "qapi/qmp/qerror.h"
#include "sysemu/replay.h"
#include "qemu/cutils.h"
struct bt_hci_s {
uint8_t *(*evt_packet)(void *opaque);
void (*evt_submit)(void *opaque, int len);
void *opaque;
uint8_t evt_buf[256];
uint8_t acl_buf[4096];
int acl_len;
uint16_t asb_handle;
uint16_t psb_handle;
int last_cmd; /* Note: Always little-endian */
struct bt_device_s *conn_req_host;
struct {
int inquire;
int periodic;
int responses_left;
int responses;
QEMUTimer *inquiry_done;
QEMUTimer *inquiry_next;
int inquiry_length;
int inquiry_period;
int inquiry_mode;
#define HCI_HANDLE_OFFSET 0x20
#define HCI_HANDLES_MAX 0x10
struct bt_hci_master_link_s {
struct bt_link_s *link;
void (*lmp_acl_data)(struct bt_link_s *link,
const uint8_t *data, int start, int len);
QEMUTimer *acl_mode_timer;
} handle[HCI_HANDLES_MAX];
uint32_t role_bmp;
int last_handle;
int connecting;
bdaddr_t awaiting_bdaddr[HCI_HANDLES_MAX];
} lm;
uint8_t event_mask[8];
uint16_t voice_setting; /* Notw: Always little-endian */
uint16_t conn_accept_tout;
QEMUTimer *conn_accept_timer;
struct HCIInfo info;
struct bt_device_s device;
Error *replay_blocker;
};
#define DEFAULT_RSSI_DBM 20
#define hci_from_info(ptr) container_of((ptr), struct bt_hci_s, info)
#define hci_from_device(ptr) container_of((ptr), struct bt_hci_s, device)
struct bt_hci_link_s {
struct bt_link_s btlink;
uint16_t handle; /* Local */
};
/* LMP layer emulation */
#if 0
static void bt_submit_lmp(struct bt_device_s *bt, int length, uint8_t *data)
{
int resp, resplen, error, op, tr;
uint8_t respdata[17];
if (length < 1)
return;
tr = *data & 1;
op = *(data ++) >> 1;
resp = LMP_ACCEPTED;
resplen = 2;
respdata[1] = op;
error = 0;
length --;
if (op >= 0x7c) { /* Extended opcode */
op |= *(data ++) << 8;
resp = LMP_ACCEPTED_EXT;
resplen = 4;
respdata[0] = op >> 8;
respdata[1] = op & 0xff;
length --;
}
switch (op) {
case LMP_ACCEPTED:
/* data[0] Op code
*/
if (length < 1) {
error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
goto not_accepted;
}
resp = 0;
break;
case LMP_ACCEPTED_EXT:
/* data[0] Escape op code
* data[1] Extended op code
*/
if (length < 2) {
error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
goto not_accepted;
}
resp = 0;
break;
case LMP_NOT_ACCEPTED:
/* data[0] Op code
* data[1] Error code
*/
if (length < 2) {
error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
goto not_accepted;
}
resp = 0;
break;
case LMP_NOT_ACCEPTED_EXT:
/* data[0] Op code
* data[1] Extended op code
* data[2] Error code
*/
if (length < 3) {
error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
goto not_accepted;
}
resp = 0;
break;
case LMP_HOST_CONNECTION_REQ:
break;
case LMP_SETUP_COMPLETE:
resp = LMP_SETUP_COMPLETE;
resplen = 1;
bt->setup = 1;
break;
case LMP_DETACH:
/* data[0] Error code
*/
if (length < 1) {
error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
goto not_accepted;
}
bt->setup = 0;
resp = 0;
break;
case LMP_SUPERVISION_TIMEOUT:
/* data[0,1] Supervision timeout
*/
if (length < 2) {
error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
goto not_accepted;
}
resp = 0;
break;
case LMP_QUALITY_OF_SERVICE:
resp = 0;
/* Fall through */
case LMP_QOS_REQ:
/* data[0,1] Poll interval
* data[2] N(BC)
*/
if (length < 3) {
error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
goto not_accepted;
}
break;
case LMP_MAX_SLOT:
resp = 0;
/* Fall through */
case LMP_MAX_SLOT_REQ:
/* data[0] Max slots
*/
if (length < 1) {
error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
goto not_accepted;
}
break;
case LMP_AU_RAND:
case LMP_IN_RAND:
case LMP_COMB_KEY:
/* data[0-15] Random number
*/
if (length < 16) {
error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
goto not_accepted;
}
if (op == LMP_AU_RAND) {
if (bt->key_present) {
resp = LMP_SRES;
resplen = 5;
/* XXX: [Part H] Section 6.1 on page 801 */
} else {
error = HCI_PIN_OR_KEY_MISSING;
goto not_accepted;
}
} else if (op == LMP_IN_RAND) {
error = HCI_PAIRING_NOT_ALLOWED;
goto not_accepted;
} else {
/* XXX: [Part H] Section 3.2 on page 779 */
resp = LMP_UNIT_KEY;
resplen = 17;
memcpy(respdata + 1, bt->key, 16);
error = HCI_UNIT_LINK_KEY_USED;
goto not_accepted;
}
break;
case LMP_UNIT_KEY:
/* data[0-15] Key
*/
if (length < 16) {
error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
goto not_accepted;
}
memcpy(bt->key, data, 16);
bt->key_present = 1;
break;
case LMP_SRES:
/* data[0-3] Authentication response
*/
if (length < 4) {
error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
goto not_accepted;
}
break;
case LMP_CLKOFFSET_REQ:
resp = LMP_CLKOFFSET_RES;
resplen = 3;
respdata[1] = 0x33;
respdata[2] = 0x33;
break;
case LMP_CLKOFFSET_RES:
/* data[0,1] Clock offset
* (Slave to master only)
*/
if (length < 2) {
error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
goto not_accepted;
}
break;
case LMP_VERSION_REQ:
case LMP_VERSION_RES:
/* data[0] VersNr
* data[1,2] CompId
* data[3,4] SubVersNr
*/
if (length < 5) {
error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
goto not_accepted;
}
if (op == LMP_VERSION_REQ) {
resp = LMP_VERSION_RES;
resplen = 6;
respdata[1] = 0x20;
respdata[2] = 0xff;
respdata[3] = 0xff;
respdata[4] = 0xff;
respdata[5] = 0xff;
} else
resp = 0;
break;
case LMP_FEATURES_REQ:
case LMP_FEATURES_RES:
/* data[0-7] Features
*/
if (length < 8) {
error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
goto not_accepted;
}
if (op == LMP_FEATURES_REQ) {
resp = LMP_FEATURES_RES;
resplen = 9;
respdata[1] = (bt->lmp_caps >> 0) & 0xff;
respdata[2] = (bt->lmp_caps >> 8) & 0xff;
respdata[3] = (bt->lmp_caps >> 16) & 0xff;
respdata[4] = (bt->lmp_caps >> 24) & 0xff;
respdata[5] = (bt->lmp_caps >> 32) & 0xff;
respdata[6] = (bt->lmp_caps >> 40) & 0xff;
respdata[7] = (bt->lmp_caps >> 48) & 0xff;
respdata[8] = (bt->lmp_caps >> 56) & 0xff;
} else
resp = 0;
break;
case LMP_NAME_REQ:
/* data[0] Name offset
*/
if (length < 1) {
error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
goto not_accepted;
}
resp = LMP_NAME_RES;
resplen = 17;
respdata[1] = data[0];
respdata[2] = strlen(bt->lmp_name);
memset(respdata + 3, 0x00, 14);
if (respdata[2] > respdata[1])
memcpy(respdata + 3, bt->lmp_name + respdata[1],
respdata[2] - respdata[1]);
break;
case LMP_NAME_RES:
/* data[0] Name offset
* data[1] Name length
* data[2-15] Name fragment
*/
if (length < 16) {
error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
goto not_accepted;
}
resp = 0;
break;
default:
error = HCI_UNKNOWN_LMP_PDU;
/* Fall through */
not_accepted:
if (op >> 8) {
resp = LMP_NOT_ACCEPTED_EXT;
resplen = 5;
respdata[0] = op >> 8;
respdata[1] = op & 0xff;
respdata[2] = error;
} else {
resp = LMP_NOT_ACCEPTED;
resplen = 3;
respdata[0] = op & 0xff;
respdata[1] = error;
}
}
if (resp == 0)
return;
if (resp >> 8) {
respdata[0] = resp >> 8;
respdata[1] = resp & 0xff;
} else
respdata[0] = resp & 0xff;
respdata[0] <<= 1;
respdata[0] |= tr;
}
static void bt_submit_raw_acl(struct bt_piconet_s *net, int length, uint8_t *data)
{
struct bt_device_s *slave;
if (length < 1)
return;
slave = 0;
#if 0
slave = net->slave;
#endif
switch (data[0] & 3) {
case LLID_ACLC:
bt_submit_lmp(slave, length - 1, data + 1);
break;
case LLID_ACLU_START:
#if 0
bt_sumbit_l2cap(slave, length - 1, data + 1, (data[0] >> 2) & 1);
breka;
#endif
default:
case LLID_ACLU_CONT:
break;
}
}
#endif
/* HCI layer emulation */
/* Note: we could ignore endiannes because unswapped handles will still
* be valid as connection identifiers for the guest - they don't have to
* be continuously allocated. We do it though, to preserve similar
* behaviour between hosts. Some things, like the BD_ADDR cannot be
* preserved though (for example if a real hci is used). */
#ifdef HOST_WORDS_BIGENDIAN
# define HNDL(raw) bswap16(raw)
#else
# define HNDL(raw) (raw)
#endif
static const uint8_t bt_event_reserved_mask[8] = {
0xff, 0x9f, 0xfb, 0xff, 0x07, 0x18, 0x00, 0x00,
};
static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
{
}
static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
{
return -ENOTSUP;
}
struct HCIInfo null_hci = {
.cmd_send = null_hci_send,
.sco_send = null_hci_send,
.acl_send = null_hci_send,
.bdaddr_set = null_hci_addr_set,
};
static inline uint8_t *bt_hci_event_start(struct bt_hci_s *hci,
int evt, int len)
{
uint8_t *packet, mask;
int mask_byte;
if (len > 255) {
fprintf(stderr, "%s: HCI event params too long (%ib)\n",
__FUNCTION__, len);
exit(-1);
}
mask_byte = (evt - 1) >> 3;
mask = 1 << ((evt - 1) & 3);
if (mask & bt_event_reserved_mask[mask_byte] & ~hci->event_mask[mask_byte])
return NULL;
packet = hci->evt_packet(hci->opaque);
packet[0] = evt;
packet[1] = len;
return &packet[2];
}
static inline void bt_hci_event(struct bt_hci_s *hci, int evt,
void *params, int len)
{
uint8_t *packet = bt_hci_event_start(hci, evt, len);
if (!packet)
return;
if (len)
memcpy(packet, params, len);
hci->evt_submit(hci->opaque, len + 2);
}
static inline void bt_hci_event_status(struct bt_hci_s *hci, int status)
{
evt_cmd_status params = {
.status = status,
.ncmd = 1,
.opcode = hci->last_cmd,
};
bt_hci_event(hci, EVT_CMD_STATUS, &params, EVT_CMD_STATUS_SIZE);
}
static inline void bt_hci_event_complete(struct bt_hci_s *hci,
void *ret, int len)
{
uint8_t *packet = bt_hci_event_start(hci, EVT_CMD_COMPLETE,
len + EVT_CMD_COMPLETE_SIZE);
evt_cmd_complete *params = (evt_cmd_complete *) packet;
if (!packet)
return;
params->ncmd = 1;
params->opcode = hci->last_cmd;
if (len)
memcpy(&packet[EVT_CMD_COMPLETE_SIZE], ret, len);
hci->evt_submit(hci->opaque, len + EVT_CMD_COMPLETE_SIZE + 2);
}
static void bt_hci_inquiry_done(void *opaque)
{
struct bt_hci_s *hci = (struct bt_hci_s *) opaque;
uint8_t status = HCI_SUCCESS;
if (!hci->lm.periodic)
hci->lm.inquire = 0;
/* The specification is inconsistent about this one. Page 565 reads
* "The event parameters of Inquiry Complete event will have a summary
* of the result from the Inquiry process, which reports the number of
* nearby Bluetooth devices that responded [so hci->responses].", but
* Event Parameters (see page 729) has only Status. */
bt_hci_event(hci, EVT_INQUIRY_COMPLETE, &status, 1);
}
static void bt_hci_inquiry_result_standard(struct bt_hci_s *hci,
struct bt_device_s *slave)
{
inquiry_info params = {
.num_responses = 1,
.bdaddr = BAINIT(&slave->bd_addr),
.pscan_rep_mode = 0x00, /* R0 */
.pscan_period_mode = 0x00, /* P0 - deprecated */
.pscan_mode = 0x00, /* Standard scan - deprecated */
.dev_class[0] = slave->class[0],
.dev_class[1] = slave->class[1],
.dev_class[2] = slave->class[2],
/* TODO: return the clkoff *differenece* */
.clock_offset = slave->clkoff, /* Note: no swapping */
};
bt_hci_event(hci, EVT_INQUIRY_RESULT, &params, INQUIRY_INFO_SIZE);
}
static void bt_hci_inquiry_result_with_rssi(struct bt_hci_s *hci,
struct bt_device_s *slave)
{
inquiry_info_with_rssi params = {
.num_responses = 1,
.bdaddr = BAINIT(&slave->bd_addr),
.pscan_rep_mode = 0x00, /* R0 */
.pscan_period_mode = 0x00, /* P0 - deprecated */
.dev_class[0] = slave->class[0],
.dev_class[1] = slave->class[1],
.dev_class[2] = slave->class[2],
/* TODO: return the clkoff *differenece* */
.clock_offset = slave->clkoff, /* Note: no swapping */
.rssi = DEFAULT_RSSI_DBM,
};
bt_hci_event(hci, EVT_INQUIRY_RESULT_WITH_RSSI,
&params, INQUIRY_INFO_WITH_RSSI_SIZE);
}
static void bt_hci_inquiry_result(struct bt_hci_s *hci,
struct bt_device_s *slave)
{
if (!slave->inquiry_scan || !hci->lm.responses_left)
return;
hci->lm.responses_left --;
hci->lm.responses ++;
switch (hci->lm.inquiry_mode) {
case 0x00:
bt_hci_inquiry_result_standard(hci, slave);
return;
case 0x01:
bt_hci_inquiry_result_with_rssi(hci, slave);
return;
default:
fprintf(stderr, "%s: bad inquiry mode %02x\n", __FUNCTION__,
hci->lm.inquiry_mode);
exit(-1);
}
}
static void bt_hci_mod_timer_1280ms(QEMUTimer *timer, int period)
{
timer_mod(timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
(uint64_t)(period << 7) * 10000000);
}
static void bt_hci_inquiry_start(struct bt_hci_s *hci, int length)
{
struct bt_device_s *slave;
hci->lm.inquiry_length = length;
for (slave = hci->device.net->slave; slave; slave = slave->next)
/* Don't uncover ourselves. */
if (slave != &hci->device)
bt_hci_inquiry_result(hci, slave);
/* TODO: register for a callback on a new device's addition to the
* scatternet so that if it's added before inquiry_length expires,
* an Inquiry Result is generated immediately. Alternatively re-loop
* through the devices on the inquiry_length expiration and report
* devices not seen before. */
if (hci->lm.responses_left)
bt_hci_mod_timer_1280ms(hci->lm.inquiry_done, hci->lm.inquiry_length);
else
bt_hci_inquiry_done(hci);
if (hci->lm.periodic)
bt_hci_mod_timer_1280ms(hci->lm.inquiry_next, hci->lm.inquiry_period);
}
static void bt_hci_inquiry_next(void *opaque)
{
struct bt_hci_s *hci = (struct bt_hci_s *) opaque;
hci->lm.responses_left += hci->lm.responses;
hci->lm.responses = 0;
bt_hci_inquiry_start(hci, hci->lm.inquiry_length);
}
static inline int bt_hci_handle_bad(struct bt_hci_s *hci, uint16_t handle)
{
return !(handle & HCI_HANDLE_OFFSET) ||
handle >= (HCI_HANDLE_OFFSET | HCI_HANDLES_MAX) ||
!hci->lm.handle[handle & ~HCI_HANDLE_OFFSET].link;
}
static inline int bt_hci_role_master(struct bt_hci_s *hci, uint16_t handle)
{
return !!(hci->lm.role_bmp & (1 << (handle & ~HCI_HANDLE_OFFSET)));
}
static inline struct bt_device_s *bt_hci_remote_dev(struct bt_hci_s *hci,
uint16_t handle)
{
struct bt_link_s *link = hci->lm.handle[handle & ~HCI_HANDLE_OFFSET].link;
return bt_hci_role_master(hci, handle) ? link->slave : link->host;
}
static void bt_hci_mode_tick(void *opaque);
static void bt_hci_lmp_link_establish(struct bt_hci_s *hci,
struct bt_link_s *link, int master)
{
hci->lm.handle[hci->lm.last_handle].link = link;
if (master) {
/* We are the master side of an ACL link */
hci->lm.role_bmp |= 1 << hci->lm.last_handle;
hci->lm.handle[hci->lm.last_handle].lmp_acl_data =
link->slave->lmp_acl_data;
} else {
/* We are the slave side of an ACL link */
hci->lm.role_bmp &= ~(1 << hci->lm.last_handle);
hci->lm.handle[hci->lm.last_handle].lmp_acl_data =
link->host->lmp_acl_resp;
}
/* Mode */
if (master) {
link->acl_mode = acl_active;
hci->lm.handle[hci->lm.last_handle].acl_mode_timer =
timer_new_ns(QEMU_CLOCK_VIRTUAL, bt_hci_mode_tick, link);
}
}
static void bt_hci_lmp_link_teardown(struct bt_hci_s *hci, uint16_t handle)
{
handle &= ~HCI_HANDLE_OFFSET;
hci->lm.handle[handle].link = NULL;
if (bt_hci_role_master(hci, handle)) {
timer_del(hci->lm.handle[handle].acl_mode_timer);
timer_free(hci->lm.handle[handle].acl_mode_timer);
}
}
static int bt_hci_connect(struct bt_hci_s *hci, bdaddr_t *bdaddr)
{
struct bt_device_s *slave;
struct bt_link_s link;
for (slave = hci->device.net->slave; slave; slave = slave->next)
if (slave->page_scan && !bacmp(&slave->bd_addr, bdaddr))
break;
if (!slave || slave == &hci->device)
return -ENODEV;
bacpy(&hci->lm.awaiting_bdaddr[hci->lm.connecting ++], &slave->bd_addr);
link.slave = slave;
link.host = &hci->device;
link.slave->lmp_connection_request(&link); /* Always last */
return 0;
}
static void bt_hci_connection_reject(struct bt_hci_s *hci,
struct bt_device_s *host, uint8_t because)
{
struct bt_link_s link = {
.slave = &hci->device,
.host = host,
/* Rest uninitialised */
};
host->reject_reason = because;
host->lmp_connection_complete(&link);
}
static void bt_hci_connection_reject_event(struct bt_hci_s *hci,
bdaddr_t *bdaddr)
{
evt_conn_complete params;
params.status = HCI_NO_CONNECTION;
params.handle = 0;
bacpy(&params.bdaddr, bdaddr);
params.link_type = ACL_LINK;
params.encr_mode = 0x00; /* Encryption not required */
bt_hci_event(hci, EVT_CONN_COMPLETE, &params, EVT_CONN_COMPLETE_SIZE);
}
static void bt_hci_connection_accept(struct bt_hci_s *hci,
struct bt_device_s *host)
{
struct bt_hci_link_s *link = g_malloc0(sizeof(struct bt_hci_link_s));
evt_conn_complete params;
uint16_t handle;
uint8_t status = HCI_SUCCESS;
int tries = HCI_HANDLES_MAX;
/* Make a connection handle */
do {
while (hci->lm.handle[++ hci->lm.last_handle].link && -- tries)
hci->lm.last_handle &= HCI_HANDLES_MAX - 1;
handle = hci->lm.last_handle | HCI_HANDLE_OFFSET;
} while ((handle == hci->asb_handle || handle == hci->psb_handle) &&
tries);
if (!tries) {
g_free(link);
bt_hci_connection_reject(hci, host, HCI_REJECTED_LIMITED_RESOURCES);
status = HCI_NO_CONNECTION;
goto complete;
}
link->btlink.slave = &hci->device;
link->btlink.host = host;
link->handle = handle;
/* Link established */
bt_hci_lmp_link_establish(hci, &link->btlink, 0);
complete:
params.status = status;
params.handle = HNDL(handle);
bacpy(&params.bdaddr, &host->bd_addr);
params.link_type = ACL_LINK;
params.encr_mode = 0x00; /* Encryption not required */
bt_hci_event(hci, EVT_CONN_COMPLETE, &params, EVT_CONN_COMPLETE_SIZE);
/* Neets to be done at the very end because it can trigger a (nested)
* disconnected, in case the other and had cancelled the request
* locally. */
if (status == HCI_SUCCESS) {
host->reject_reason = 0;
host->lmp_connection_complete(&link->btlink);
}
}
static void bt_hci_lmp_connection_request(struct bt_link_s *link)
{
struct bt_hci_s *hci = hci_from_device(link->slave);
evt_conn_request params;
if (hci->conn_req_host) {
bt_hci_connection_reject(hci, link->host,
HCI_REJECTED_LIMITED_RESOURCES);
return;
}
hci->conn_req_host = link->host;
/* TODO: if masked and auto-accept, then auto-accept,
* if masked and not auto-accept, then auto-reject */
/* TODO: kick the hci->conn_accept_timer, timeout after
* hci->conn_accept_tout * 0.625 msec */
bacpy(&params.bdaddr, &link->host->bd_addr);
memcpy(&params.dev_class, &link->host->class, sizeof(params.dev_class));
params.link_type = ACL_LINK;
bt_hci_event(hci, EVT_CONN_REQUEST, &params, EVT_CONN_REQUEST_SIZE);
}
static void bt_hci_conn_accept_timeout(void *opaque)
{
struct bt_hci_s *hci = (struct bt_hci_s *) opaque;
if (!hci->conn_req_host)
/* Already accepted or rejected. If the other end cancelled the
* connection request then we still have to reject or accept it
* and then we'll get a disconnect. */
return;
/* TODO */
}
/* Remove from the list of devices which we wanted to connect to and
* are awaiting a response from. If the callback sees a response from
* a device which is not on the list it will assume it's a connection
* that's been cancelled by the host in the meantime and immediately
* try to detach the link and send a Connection Complete. */
static int bt_hci_lmp_connection_ready(struct bt_hci_s *hci,
bdaddr_t *bdaddr)
{
int i;
for (i = 0; i < hci->lm.connecting; i ++)
if (!bacmp(&hci->lm.awaiting_bdaddr[i], bdaddr)) {
if (i < -- hci->lm.connecting)
bacpy(&hci->lm.awaiting_bdaddr[i],
&hci->lm.awaiting_bdaddr[hci->lm.connecting]);
return 0;
}
return 1;
}
static void bt_hci_lmp_connection_complete(struct bt_link_s *link)
{
struct bt_hci_s *hci = hci_from_device(link->host);
evt_conn_complete params;
uint16_t handle;
uint8_t status = HCI_SUCCESS;
int tries = HCI_HANDLES_MAX;
if (bt_hci_lmp_connection_ready(hci, &link->slave->bd_addr)) {
if (!hci->device.reject_reason)
link->slave->lmp_disconnect_slave(link);
handle = 0;
status = HCI_NO_CONNECTION;
goto complete;
}
if (hci->device.reject_reason) {
handle = 0;
status = hci->device.reject_reason;
goto complete;
}
/* Make a connection handle */
do {
while (hci->lm.handle[++ hci->lm.last_handle].link && -- tries)
hci->lm.last_handle &= HCI_HANDLES_MAX - 1;
handle = hci->lm.last_handle | HCI_HANDLE_OFFSET;
} while ((handle == hci->asb_handle || handle == hci->psb_handle) &&
tries);
if (!tries) {
link->slave->lmp_disconnect_slave(link);
status = HCI_NO_CONNECTION;
goto complete;
}
/* Link established */
link->handle = handle;
bt_hci_lmp_link_establish(hci, link, 1);
complete:
params.status = status;
params.handle = HNDL(handle);
params.link_type = ACL_LINK;
bacpy(&params.bdaddr, &link->slave->bd_addr);
params.encr_mode = 0x00; /* Encryption not required */
bt_hci_event(hci, EVT_CONN_COMPLETE, &params, EVT_CONN_COMPLETE_SIZE);
}
static void bt_hci_disconnect(struct bt_hci_s *hci,
uint16_t handle, int reason)
{
struct bt_link_s *btlink =
hci->lm.handle[handle & ~HCI_HANDLE_OFFSET].link;
struct bt_hci_link_s *link;
evt_disconn_complete params;
if (bt_hci_role_master(hci, handle)) {
btlink->slave->reject_reason = reason;
btlink->slave->lmp_disconnect_slave(btlink);
/* The link pointer is invalid from now on */
goto complete;
}
btlink->host->reject_reason = reason;
btlink->host->lmp_disconnect_master(btlink);
/* We are the slave, we get to clean this burden */
link = (struct bt_hci_link_s *) btlink;
g_free(link);
complete:
bt_hci_lmp_link_teardown(hci, handle);
params.status = HCI_SUCCESS;
params.handle = HNDL(handle);
params.reason = HCI_CONNECTION_TERMINATED;
bt_hci_event(hci, EVT_DISCONN_COMPLETE,
&params, EVT_DISCONN_COMPLETE_SIZE);
}
/* TODO: use only one function */
static void bt_hci_lmp_disconnect_host(struct bt_link_s *link)
{
struct bt_hci_s *hci = hci_from_device(link->host);
uint16_t handle = link->handle;
evt_disconn_complete params;
bt_hci_lmp_link_teardown(hci, handle);
params.status = HCI_SUCCESS;
params.handle = HNDL(handle);
params.reason = hci->device.reject_reason;
bt_hci_event(hci, EVT_DISCONN_COMPLETE,
&params, EVT_DISCONN_COMPLETE_SIZE);
}
static void bt_hci_lmp_disconnect_slave(struct bt_link_s *btlink)
{
struct bt_hci_link_s *link = (struct bt_hci_link_s *) btlink;
struct bt_hci_s *hci = hci_from_device(btlink->slave);
uint16_t handle = link->handle;
evt_disconn_complete params;
g_free(link);
bt_hci_lmp_link_teardown(hci, handle);
params.status = HCI_SUCCESS;
params.handle = HNDL(handle);
params.reason = hci->device.reject_reason;
bt_hci_event(hci, EVT_DISCONN_COMPLETE,
&params, EVT_DISCONN_COMPLETE_SIZE);
}
static int bt_hci_name_req(struct bt_hci_s *hci, bdaddr_t *bdaddr)
{
struct bt_device_s *slave;
evt_remote_name_req_complete params;
for (slave = hci->device.net->slave; slave; slave = slave->next)
if (slave->page_scan && !bacmp(&slave->bd_addr, bdaddr))
break;
if (!slave)
return -ENODEV;
bt_hci_event_status(hci, HCI_SUCCESS);
params.status = HCI_SUCCESS;
bacpy(&params.bdaddr, &slave->bd_addr);
pstrcpy(params.name, sizeof(params.name), slave->lmp_name ?: "");
bt_hci_event(hci, EVT_REMOTE_NAME_REQ_COMPLETE,
&params, EVT_REMOTE_NAME_REQ_COMPLETE_SIZE);
return 0;
}
static int bt_hci_features_req(struct bt_hci_s *hci, uint16_t handle)
{
struct bt_device_s *slave;
evt_read_remote_features_complete params;
if (bt_hci_handle_bad(hci, handle))
return -ENODEV;
slave = bt_hci_remote_dev(hci, handle);
bt_hci_event_status(hci, HCI_SUCCESS);
params.status = HCI_SUCCESS;
params.handle = HNDL(handle);
params.features[0] = (slave->lmp_caps >> 0) & 0xff;
params.features[1] = (slave->lmp_caps >> 8) & 0xff;
params.features[2] = (slave->lmp_caps >> 16) & 0xff;
params.features[3] = (slave->lmp_caps >> 24) & 0xff;
params.features[4] = (slave->lmp_caps >> 32) & 0xff;
params.features[5] = (slave->lmp_caps >> 40) & 0xff;
params.features[6] = (slave->lmp_caps >> 48) & 0xff;
params.features[7] = (slave->lmp_caps >> 56) & 0xff;
bt_hci_event(hci, EVT_READ_REMOTE_FEATURES_COMPLETE,
&params, EVT_READ_REMOTE_FEATURES_COMPLETE_SIZE);
return 0;
}
static int bt_hci_version_req(struct bt_hci_s *hci, uint16_t handle)
{
evt_read_remote_version_complete params;
if (bt_hci_handle_bad(hci, handle))
return -ENODEV;
bt_hci_remote_dev(hci, handle);
bt_hci_event_status(hci, HCI_SUCCESS);
params.status = HCI_SUCCESS;
params.handle = HNDL(handle);
params.lmp_ver = 0x03;
params.manufacturer = cpu_to_le16(0xa000);
params.lmp_subver = cpu_to_le16(0xa607);
bt_hci_event(hci, EVT_READ_REMOTE_VERSION_COMPLETE,
&params, EVT_READ_REMOTE_VERSION_COMPLETE_SIZE);
return 0;
}
static int bt_hci_clkoffset_req(struct bt_hci_s *hci, uint16_t handle)
{
struct bt_device_s *slave;
evt_read_clock_offset_complete params;
if (bt_hci_handle_bad(hci, handle))
return -ENODEV;
slave = bt_hci_remote_dev(hci, handle);
bt_hci_event_status(hci, HCI_SUCCESS);
params.status = HCI_SUCCESS;
params.handle = HNDL(handle);
/* TODO: return the clkoff *differenece* */
params.clock_offset = slave->clkoff; /* Note: no swapping */
bt_hci_event(hci, EVT_READ_CLOCK_OFFSET_COMPLETE,
&params, EVT_READ_CLOCK_OFFSET_COMPLETE_SIZE);
return 0;
}
static void bt_hci_event_mode(struct bt_hci_s *hci, struct bt_link_s *link,
uint16_t handle)
{
evt_mode_change params = {
.status = HCI_SUCCESS,
.handle = HNDL(handle),
.mode = link->acl_mode,
.interval = cpu_to_le16(link->acl_interval),
};
bt_hci_event(hci, EVT_MODE_CHANGE, &params, EVT_MODE_CHANGE_SIZE);
}
static void bt_hci_lmp_mode_change_master(struct bt_hci_s *hci,
struct bt_link_s *link, int mode, uint16_t interval)
{
link->acl_mode = mode;
link->acl_interval = interval;
bt_hci_event_mode(hci, link, link->handle);
link->slave->lmp_mode_change(link);
}
static void bt_hci_lmp_mode_change_slave(struct bt_link_s *btlink)
{
struct bt_hci_link_s *link = (struct bt_hci_link_s *) btlink;
struct bt_hci_s *hci = hci_from_device(btlink->slave);
bt_hci_event_mode(hci, btlink, link->handle);
}
static int bt_hci_mode_change(struct bt_hci_s *hci, uint16_t handle,
int interval, int mode)
{
struct bt_hci_master_link_s *link;
if (bt_hci_handle_bad(hci, handle) || !bt_hci_role_master(hci, handle))
return -ENODEV;
link = &hci->lm.handle[handle & ~HCI_HANDLE_OFFSET];
if (link->link->acl_mode != acl_active) {
bt_hci_event_status(hci, HCI_COMMAND_DISALLOWED);
return 0;
}
bt_hci_event_status(hci, HCI_SUCCESS);
timer_mod(link->acl_mode_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
((uint64_t)interval * 625) * 1000);
bt_hci_lmp_mode_change_master(hci, link->link, mode, interval);
return 0;
}
static int bt_hci_mode_cancel(struct bt_hci_s *hci, uint16_t handle, int mode)
{
struct bt_hci_master_link_s *link;
if (bt_hci_handle_bad(hci, handle) || !bt_hci_role_master(hci, handle))
return -ENODEV;
link = &hci->lm.handle[handle & ~HCI_HANDLE_OFFSET];
if (link->link->acl_mode != mode) {
bt_hci_event_status(hci, HCI_COMMAND_DISALLOWED);
return 0;
}
bt_hci_event_status(hci, HCI_SUCCESS);
timer_del(link->acl_mode_timer);
bt_hci_lmp_mode_change_master(hci, link->link, acl_active, 0);
return 0;
}
static void bt_hci_mode_tick(void *opaque)
{
struct bt_link_s *link = opaque;
struct bt_hci_s *hci = hci_from_device(link->host);
bt_hci_lmp_mode_change_master(hci, link, acl_active, 0);
}
static void bt_hci_reset(struct bt_hci_s *hci)
{
hci->acl_len = 0;
hci->last_cmd = 0;
hci->lm.connecting = 0;
hci->event_mask[0] = 0xff;
hci->event_mask[1] = 0xff;
hci->event_mask[2] = 0xff;
hci->event_mask[3] = 0xff;
hci->event_mask[4] = 0xff;
hci->event_mask[5] = 0x1f;
hci->event_mask[6] = 0x00;
hci->event_mask[7] = 0x00;
hci->device.inquiry_scan = 0;
hci->device.page_scan = 0;
g_free((void *) hci->device.lmp_name);
hci->device.lmp_name = NULL;
hci->device.class[0] = 0x00;
hci->device.class[1] = 0x00;
hci->device.class[2] = 0x00;
hci->voice_setting = 0x0000;
hci->conn_accept_tout = 0x1f40;
hci->lm.inquiry_mode = 0x00;
hci->psb_handle = 0x000;
hci->asb_handle = 0x000;
/* XXX: timer_del(sl->acl_mode_timer); for all links */
timer_del(hci->lm.inquiry_done);
timer_del(hci->lm.inquiry_next);
timer_del(hci->conn_accept_timer);
}
static void bt_hci_read_local_version_rp(struct bt_hci_s *hci)
{
read_local_version_rp lv = {
.status = HCI_SUCCESS,
.hci_ver = 0x03,
.hci_rev = cpu_to_le16(0xa607),
.lmp_ver = 0x03,
.manufacturer = cpu_to_le16(0xa000),
.lmp_subver = cpu_to_le16(0xa607),
};
bt_hci_event_complete(hci, &lv, READ_LOCAL_VERSION_RP_SIZE);
}
static void bt_hci_read_local_commands_rp(struct bt_hci_s *hci)
{
read_local_commands_rp lc = {
.status = HCI_SUCCESS,
.commands = {
/* Keep updated! */
/* Also, keep in sync with hci->device.lmp_caps in bt_new_hci */
0xbf, 0x80, 0xf9, 0x03, 0xb2, 0xc0, 0x03, 0xc3,
0x00, 0x0f, 0x80, 0x00, 0xc0, 0x00, 0xe8, 0x13,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
},
};
bt_hci_event_complete(hci, &lc, READ_LOCAL_COMMANDS_RP_SIZE);
}
static void bt_hci_read_local_features_rp(struct bt_hci_s *hci)
{
read_local_features_rp lf = {
.status = HCI_SUCCESS,
.features = {
(hci->device.lmp_caps >> 0) & 0xff,
(hci->device.lmp_caps >> 8) & 0xff,
(hci->device.lmp_caps >> 16) & 0xff,
(hci->device.lmp_caps >> 24) & 0xff,
(hci->device.lmp_caps >> 32) & 0xff,
(hci->device.lmp_caps >> 40) & 0xff,
(hci->device.lmp_caps >> 48) & 0xff,
(hci->device.lmp_caps >> 56) & 0xff,
},
};
bt_hci_event_complete(hci, &lf, READ_LOCAL_FEATURES_RP_SIZE);
}
static void bt_hci_read_local_ext_features_rp(struct bt_hci_s *hci, int page)
{
read_local_ext_features_rp lef = {
.status = HCI_SUCCESS,
.page_num = page,
.max_page_num = 0x00,
.features = {
/* Keep updated! */
0x5f, 0x35, 0x85, 0x7e, 0x9b, 0x19, 0x00, 0x80,
},
};
if (page)
memset(lef.features, 0, sizeof(lef.features));
bt_hci_event_complete(hci, &lef, READ_LOCAL_EXT_FEATURES_RP_SIZE);
}
static void bt_hci_read_buffer_size_rp(struct bt_hci_s *hci)
{
read_buffer_size_rp bs = {
/* This can be made configurable, for one standard USB dongle HCI
* the four values are cpu_to_le16(0x0180), 0x40,
* cpu_to_le16(0x0008), cpu_to_le16(0x0008). */
.status = HCI_SUCCESS,
.acl_mtu = cpu_to_le16(0x0200),
.sco_mtu = 0,
.acl_max_pkt = cpu_to_le16(0x0001),
.sco_max_pkt = cpu_to_le16(0x0000),
};
bt_hci_event_complete(hci, &bs, READ_BUFFER_SIZE_RP_SIZE);
}
/* Deprecated in V2.0 (page 661) */
static void bt_hci_read_country_code_rp(struct bt_hci_s *hci)
{
read_country_code_rp cc ={
.status = HCI_SUCCESS,
.country_code = 0x00, /* North America & Europe^1 and Japan */
};
bt_hci_event_complete(hci, &cc, READ_COUNTRY_CODE_RP_SIZE);
/* ^1. Except France, sorry */
}
static void bt_hci_read_bd_addr_rp(struct bt_hci_s *hci)
{
read_bd_addr_rp ba = {
.status = HCI_SUCCESS,
.bdaddr = BAINIT(&hci->device.bd_addr),
};
bt_hci_event_complete(hci, &ba, READ_BD_ADDR_RP_SIZE);
}
static int bt_hci_link_quality_rp(struct bt_hci_s *hci, uint16_t handle)
{
read_link_quality_rp lq = {
.status = HCI_SUCCESS,
.handle = HNDL(handle),
.link_quality = 0xff,
};
if (bt_hci_handle_bad(hci, handle))
lq.status = HCI_NO_CONNECTION;
bt_hci_event_complete(hci, &lq, READ_LINK_QUALITY_RP_SIZE);
return 0;
}
/* Generate a Command Complete event with only the Status parameter */
static inline void bt_hci_event_complete_status(struct bt_hci_s *hci,
uint8_t status)
{
bt_hci_event_complete(hci, &status, 1);
}
static inline void bt_hci_event_complete_conn_cancel(struct bt_hci_s *hci,
uint8_t status, bdaddr_t *bd_addr)
{
create_conn_cancel_rp params = {
.status = status,
.bdaddr = BAINIT(bd_addr),
};
bt_hci_event_complete(hci, &params, CREATE_CONN_CANCEL_RP_SIZE);
}
static inline void bt_hci_event_auth_complete(struct bt_hci_s *hci,
uint16_t handle)
{
evt_auth_complete params = {
.status = HCI_SUCCESS,
.handle = HNDL(handle),
};
bt_hci_event(hci, EVT_AUTH_COMPLETE, &params, EVT_AUTH_COMPLETE_SIZE);
}
static inline void bt_hci_event_encrypt_change(struct bt_hci_s *hci,
uint16_t handle, uint8_t mode)
{
evt_encrypt_change params = {
.status = HCI_SUCCESS,
.handle = HNDL(handle),
.encrypt = mode,
};
bt_hci_event(hci, EVT_ENCRYPT_CHANGE, &params, EVT_ENCRYPT_CHANGE_SIZE);
}
static inline void bt_hci_event_complete_name_cancel(struct bt_hci_s *hci,
bdaddr_t *bd_addr)
{
remote_name_req_cancel_rp params = {
.status = HCI_INVALID_PARAMETERS,
.bdaddr = BAINIT(bd_addr),
};
bt_hci_event_complete(hci, &params, REMOTE_NAME_REQ_CANCEL_RP_SIZE);
}
static inline void bt_hci_event_read_remote_ext_features(struct bt_hci_s *hci,
uint16_t handle)
{
evt_read_remote_ext_features_complete params = {
.status = HCI_UNSUPPORTED_FEATURE,
.handle = HNDL(handle),
/* Rest uninitialised */
};
bt_hci_event(hci, EVT_READ_REMOTE_EXT_FEATURES_COMPLETE,
&params, EVT_READ_REMOTE_EXT_FEATURES_COMPLETE_SIZE);
}
static inline void bt_hci_event_complete_lmp_handle(struct bt_hci_s *hci,
uint16_t handle)
{
read_lmp_handle_rp params = {
.status = HCI_NO_CONNECTION,
.handle = HNDL(handle),
.reserved = 0,
/* Rest uninitialised */
};
bt_hci_event_complete(hci, &params, READ_LMP_HANDLE_RP_SIZE);
}
static inline void bt_hci_event_complete_role_discovery(struct bt_hci_s *hci,
int status, uint16_t handle, int master)
{
role_discovery_rp params = {
.status = status,
.handle = HNDL(handle),
.role = master ? 0x00 : 0x01,
};
bt_hci_event_complete(hci, &params, ROLE_DISCOVERY_RP_SIZE);
}
static inline void bt_hci_event_complete_flush(struct bt_hci_s *hci,
int status, uint16_t handle)
{
flush_rp params = {
.status = status,
.handle = HNDL(handle),
};
bt_hci_event_complete(hci, &params, FLUSH_RP_SIZE);
}
static inline void bt_hci_event_complete_read_local_name(struct bt_hci_s *hci)
{
read_local_name_rp params;
params.status = HCI_SUCCESS;
memset(params.name, 0, sizeof(params.name));
if (hci->device.lmp_name)
pstrcpy(params.name, sizeof(params.name), hci->device.lmp_name);
bt_hci_event_complete(hci, &params, READ_LOCAL_NAME_RP_SIZE);
}
static inline void bt_hci_event_complete_read_conn_accept_timeout(
struct bt_hci_s *hci)
{
read_conn_accept_timeout_rp params = {
.status = HCI_SUCCESS,
.timeout = cpu_to_le16(hci->conn_accept_tout),
};
bt_hci_event_complete(hci, &params, READ_CONN_ACCEPT_TIMEOUT_RP_SIZE);
}
static inline void bt_hci_event_complete_read_scan_enable(struct bt_hci_s *hci)
{
read_scan_enable_rp params = {
.status = HCI_SUCCESS,
.enable =
(hci->device.inquiry_scan ? SCAN_INQUIRY : 0) |
(hci->device.page_scan ? SCAN_PAGE : 0),
};
bt_hci_event_complete(hci, &params, READ_SCAN_ENABLE_RP_SIZE);
}
static inline void bt_hci_event_complete_read_local_class(struct bt_hci_s *hci)
{
read_class_of_dev_rp params;
params.status = HCI_SUCCESS;
memcpy(params.dev_class, hci->device.class, sizeof(params.dev_class));
bt_hci_event_complete(hci, &params, READ_CLASS_OF_DEV_RP_SIZE);
}
static inline void bt_hci_event_complete_voice_setting(struct bt_hci_s *hci)
{
read_voice_setting_rp params = {
.status = HCI_SUCCESS,
.voice_setting = hci->voice_setting, /* Note: no swapping */
};
bt_hci_event_complete(hci, &params, READ_VOICE_SETTING_RP_SIZE);
}
static inline void bt_hci_event_complete_read_inquiry_mode(
struct bt_hci_s *hci)
{
read_inquiry_mode_rp params = {
.status = HCI_SUCCESS,
.mode = hci->lm.inquiry_mode,
};
bt_hci_event_complete(hci, &params, READ_INQUIRY_MODE_RP_SIZE);
}
static inline void bt_hci_event_num_comp_pkts(struct bt_hci_s *hci,
uint16_t handle, int packets)
{
uint16_t buf[EVT_NUM_COMP_PKTS_SIZE(1) / 2 + 1];
evt_num_comp_pkts *params = (void *) ((uint8_t *) buf + 1);
params->num_hndl = 1;
params->connection->handle = HNDL(handle);
params->connection->num_packets = cpu_to_le16(packets);
bt_hci_event(hci, EVT_NUM_COMP_PKTS, params, EVT_NUM_COMP_PKTS_SIZE(1));
}
static void bt_submit_hci(struct HCIInfo *info,
const uint8_t *data, int length)
{
struct bt_hci_s *hci = hci_from_info(info);
uint16_t cmd;
int paramlen, i;
if (length < HCI_COMMAND_HDR_SIZE)
goto short_hci;
memcpy(&hci->last_cmd, data, 2);
cmd = (data[1] << 8) | data[0];
paramlen = data[2];
if (cmd_opcode_ogf(cmd) == 0 || cmd_opcode_ocf(cmd) == 0) /* NOP */
return;
data += HCI_COMMAND_HDR_SIZE;
length -= HCI_COMMAND_HDR_SIZE;
if (paramlen > length)
return;
#define PARAM(cmd, param) (((cmd##_cp *) data)->param)
#define PARAM16(cmd, param) le16_to_cpup(&PARAM(cmd, param))
#define PARAMHANDLE(cmd) HNDL(PARAM(cmd, handle))
#define LENGTH_CHECK(cmd) if (length < sizeof(cmd##_cp)) goto short_hci
/* Note: the supported commands bitmask in bt_hci_read_local_commands_rp
* needs to be updated every time a command is implemented here! */
switch (cmd) {
case cmd_opcode_pack(OGF_LINK_CTL, OCF_INQUIRY):
LENGTH_CHECK(inquiry);
if (PARAM(inquiry, length) < 1) {
bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS);
break;
}
hci->lm.inquire = 1;
hci->lm.periodic = 0;
hci->lm.responses_left = PARAM(inquiry, num_rsp) ?: INT_MAX;
hci->lm.responses = 0;
bt_hci_event_status(hci, HCI_SUCCESS);
bt_hci_inquiry_start(hci, PARAM(inquiry, length));
break;
case cmd_opcode_pack(OGF_LINK_CTL, OCF_INQUIRY_CANCEL):
if (!hci->lm.inquire || hci->lm.periodic) {
fprintf(stderr, "%s: Inquiry Cancel should only be issued after "
"the Inquiry command has been issued, a Command "
"Status event has been received for the Inquiry "
"command, and before the Inquiry Complete event "
"occurs", __FUNCTION__);
bt_hci_event_complete_status(hci, HCI_COMMAND_DISALLOWED);
break;
}
hci->lm.inquire = 0;
timer_del(hci->lm.inquiry_done);
bt_hci_event_complete_status(hci, HCI_SUCCESS);
break;
case cmd_opcode_pack(OGF_LINK_CTL, OCF_PERIODIC_INQUIRY):
LENGTH_CHECK(periodic_inquiry);
if (!(PARAM(periodic_inquiry, length) <
PARAM16(periodic_inquiry, min_period) &&
PARAM16(periodic_inquiry, min_period) <
PARAM16(periodic_inquiry, max_period)) ||
PARAM(periodic_inquiry, length) < 1 ||
PARAM16(periodic_inquiry, min_period) < 2 ||
PARAM16(periodic_inquiry, max_period) < 3) {
bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS);
break;
}
hci->lm.inquire = 1;
hci->lm.periodic = 1;
hci->lm.responses_left = PARAM(periodic_inquiry, num_rsp);
hci->lm.responses = 0;
hci->lm.inquiry_period = PARAM16(periodic_inquiry, max_period);
bt_hci_event_complete_status(hci, HCI_SUCCESS);
bt_hci_inquiry_start(hci, PARAM(periodic_inquiry, length));
break;
case cmd_opcode_pack(OGF_LINK_CTL, OCF_EXIT_PERIODIC_INQUIRY):
if (!hci->lm.inquire || !hci->lm.periodic) {
fprintf(stderr, "%s: Inquiry Cancel should only be issued after "
"the Inquiry command has been issued, a Command "
"Status event has been received for the Inquiry "
"command, and before the Inquiry Complete event "
"occurs", __FUNCTION__);
bt_hci_event_complete_status(hci, HCI_COMMAND_DISALLOWED);
break;
}
hci->lm.inquire = 0;
timer_del(hci->lm.inquiry_done);
timer_del(hci->lm.inquiry_next);
bt_hci_event_complete_status(hci, HCI_SUCCESS);
break;
case cmd_opcode_pack(OGF_LINK_CTL, OCF_CREATE_CONN):
LENGTH_CHECK(create_conn);
if (hci->lm.connecting >= HCI_HANDLES_MAX) {
bt_hci_event_status(hci, HCI_REJECTED_LIMITED_RESOURCES);
break;
}
bt_hci_event_status(hci, HCI_SUCCESS);
if (bt_hci_connect(hci, &PARAM(create_conn, bdaddr)))
bt_hci_connection_reject_event(hci, &PARAM(create_conn, bdaddr));
break;
case cmd_opcode_pack(OGF_LINK_CTL, OCF_DISCONNECT):
LENGTH_CHECK(disconnect);
if (bt_hci_handle_bad(hci, PARAMHANDLE(disconnect))) {
bt_hci_event_status(hci, HCI_NO_CONNECTION);
break;
}
bt_hci_event_status(hci, HCI_SUCCESS);
bt_hci_disconnect(hci, PARAMHANDLE(disconnect),
PARAM(disconnect, reason));
break;
case cmd_opcode_pack(OGF_LINK_CTL, OCF_CREATE_CONN_CANCEL):
LENGTH_CHECK(create_conn_cancel);
if (bt_hci_lmp_connection_ready(hci,
&PARAM(create_conn_cancel, bdaddr))) {
for (i = 0; i < HCI_HANDLES_MAX; i ++)
if (bt_hci_role_master(hci, i) && hci->lm.handle[i].link &&
!bacmp(&hci->lm.handle[i].link->slave->bd_addr,
&PARAM(create_conn_cancel, bdaddr)))
break;
bt_hci_event_complete_conn_cancel(hci, i < HCI_HANDLES_MAX ?
HCI_ACL_CONNECTION_EXISTS : HCI_NO_CONNECTION,
&PARAM(create_conn_cancel, bdaddr));
} else
bt_hci_event_complete_conn_cancel(hci, HCI_SUCCESS,
&PARAM(create_conn_cancel, bdaddr));
break;
case cmd_opcode_pack(OGF_LINK_CTL, OCF_ACCEPT_CONN_REQ):
LENGTH_CHECK(accept_conn_req);
if (!hci->conn_req_host ||
bacmp(&PARAM(accept_conn_req, bdaddr),
&hci->conn_req_host->bd_addr)) {
bt_hci_event_status(hci, HCI_INVALID_PARAMETERS);
break;
}
bt_hci_event_status(hci, HCI_SUCCESS);
bt_hci_connection_accept(hci, hci->conn_req_host);
hci->conn_req_host = NULL;
break;
case cmd_opcode_pack(OGF_LINK_CTL, OCF_REJECT_CONN_REQ):
LENGTH_CHECK(reject_conn_req);
if (!hci->conn_req_host ||
bacmp(&PARAM(reject_conn_req, bdaddr),
&hci->conn_req_host->bd_addr)) {
bt_hci_event_status(hci, HCI_INVALID_PARAMETERS);
break;
}
bt_hci_event_status(hci, HCI_SUCCESS);
bt_hci_connection_reject(hci, hci->conn_req_host,
PARAM(reject_conn_req, reason));
bt_hci_connection_reject_event(hci, &hci->conn_req_host->bd_addr);
hci->conn_req_host = NULL;
break;
case cmd_opcode_pack(OGF_LINK_CTL, OCF_AUTH_REQUESTED):
LENGTH_CHECK(auth_requested);
if (bt_hci_handle_bad(hci, PARAMHANDLE(auth_requested)))
bt_hci_event_status(hci, HCI_NO_CONNECTION);
else {
bt_hci_event_status(hci, HCI_SUCCESS);
bt_hci_event_auth_complete(hci, PARAMHANDLE(auth_requested));
}
break;
case cmd_opcode_pack(OGF_LINK_CTL, OCF_SET_CONN_ENCRYPT):
LENGTH_CHECK(set_conn_encrypt);
if (bt_hci_handle_bad(hci, PARAMHANDLE(set_conn_encrypt)))
bt_hci_event_status(hci, HCI_NO_CONNECTION);
else {
bt_hci_event_status(hci, HCI_SUCCESS);
bt_hci_event_encrypt_change(hci,
PARAMHANDLE(set_conn_encrypt),
PARAM(set_conn_encrypt, encrypt));
}
break;
case cmd_opcode_pack(OGF_LINK_CTL, OCF_REMOTE_NAME_REQ):
LENGTH_CHECK(remote_name_req);
if (bt_hci_name_req(hci, &PARAM(remote_name_req, bdaddr)))
bt_hci_event_status(hci, HCI_NO_CONNECTION);
break;
case cmd_opcode_pack(OGF_LINK_CTL, OCF_REMOTE_NAME_REQ_CANCEL):
LENGTH_CHECK(remote_name_req_cancel);
bt_hci_event_complete_name_cancel(hci,
&PARAM(remote_name_req_cancel, bdaddr));
break;
case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_REMOTE_FEATURES):
LENGTH_CHECK(read_remote_features);
if (bt_hci_features_req(hci, PARAMHANDLE(read_remote_features)))
bt_hci_event_status(hci, HCI_NO_CONNECTION);
break;
case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_REMOTE_EXT_FEATURES):
LENGTH_CHECK(read_remote_ext_features);
if (bt_hci_handle_bad(hci, PARAMHANDLE(read_remote_ext_features)))
bt_hci_event_status(hci, HCI_NO_CONNECTION);
else {
bt_hci_event_status(hci, HCI_SUCCESS);
bt_hci_event_read_remote_ext_features(hci,
PARAMHANDLE(read_remote_ext_features));
}
break;
case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_REMOTE_VERSION):
LENGTH_CHECK(read_remote_version);
if (bt_hci_version_req(hci, PARAMHANDLE(read_remote_version)))
bt_hci_event_status(hci, HCI_NO_CONNECTION);
break;
case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_CLOCK_OFFSET):
LENGTH_CHECK(read_clock_offset);
if (bt_hci_clkoffset_req(hci, PARAMHANDLE(read_clock_offset)))
bt_hci_event_status(hci, HCI_NO_CONNECTION);
break;
case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_LMP_HANDLE):
LENGTH_CHECK(read_lmp_handle);
/* TODO: */
bt_hci_event_complete_lmp_handle(hci, PARAMHANDLE(read_lmp_handle));
break;
case cmd_opcode_pack(OGF_LINK_POLICY, OCF_HOLD_MODE):
LENGTH_CHECK(hold_mode);
if (PARAM16(hold_mode, min_interval) >
PARAM16(hold_mode, max_interval) ||
PARAM16(hold_mode, min_interval) < 0x0002 ||
PARAM16(hold_mode, max_interval) > 0xff00 ||
(PARAM16(hold_mode, min_interval) & 1) ||
(PARAM16(hold_mode, max_interval) & 1)) {
bt_hci_event_status(hci, HCI_INVALID_PARAMETERS);
break;
}
if (bt_hci_mode_change(hci, PARAMHANDLE(hold_mode),
PARAM16(hold_mode, max_interval),
acl_hold))
bt_hci_event_status(hci, HCI_NO_CONNECTION);
break;
case cmd_opcode_pack(OGF_LINK_POLICY, OCF_PARK_MODE):
LENGTH_CHECK(park_mode);
if (PARAM16(park_mode, min_interval) >
PARAM16(park_mode, max_interval) ||
PARAM16(park_mode, min_interval) < 0x000e ||
(PARAM16(park_mode, min_interval) & 1) ||
(PARAM16(park_mode, max_interval) & 1)) {
bt_hci_event_status(hci, HCI_INVALID_PARAMETERS);
break;
}
if (bt_hci_mode_change(hci, PARAMHANDLE(park_mode),
PARAM16(park_mode, max_interval),
acl_parked))
bt_hci_event_status(hci, HCI_NO_CONNECTION);
break;
case cmd_opcode_pack(OGF_LINK_POLICY, OCF_EXIT_PARK_MODE):
LENGTH_CHECK(exit_park_mode);
if (bt_hci_mode_cancel(hci, PARAMHANDLE(exit_park_mode),
acl_parked))
bt_hci_event_status(hci, HCI_NO_CONNECTION);
break;
case cmd_opcode_pack(OGF_LINK_POLICY, OCF_ROLE_DISCOVERY):
LENGTH_CHECK(role_discovery);
if (bt_hci_handle_bad(hci, PARAMHANDLE(role_discovery)))
bt_hci_event_complete_role_discovery(hci,
HCI_NO_CONNECTION, PARAMHANDLE(role_discovery), 0);
else
bt_hci_event_complete_role_discovery(hci,
HCI_SUCCESS, PARAMHANDLE(role_discovery),
bt_hci_role_master(hci,
PARAMHANDLE(role_discovery)));
break;
case cmd_opcode_pack(OGF_HOST_CTL, OCF_SET_EVENT_MASK):
LENGTH_CHECK(set_event_mask);
memcpy(hci->event_mask, PARAM(set_event_mask, mask), 8);
bt_hci_event_complete_status(hci, HCI_SUCCESS);
break;
case cmd_opcode_pack(OGF_HOST_CTL, OCF_RESET):
bt_hci_reset(hci);
bt_hci_event_status(hci, HCI_SUCCESS);
break;
case cmd_opcode_pack(OGF_HOST_CTL, OCF_SET_EVENT_FLT):
if (length >= 1 && PARAM(set_event_flt, flt_type) == FLT_CLEAR_ALL)
/* No length check */;
else
LENGTH_CHECK(set_event_flt);
/* Filters are not implemented */
bt_hci_event_complete_status(hci, HCI_SUCCESS);
break;
case cmd_opcode_pack(OGF_HOST_CTL, OCF_FLUSH):
LENGTH_CHECK(flush);
if (bt_hci_handle_bad(hci, PARAMHANDLE(flush)))
bt_hci_event_complete_flush(hci,
HCI_NO_CONNECTION, PARAMHANDLE(flush));
else {
/* TODO: ordering? */
bt_hci_event(hci, EVT_FLUSH_OCCURRED,
&PARAM(flush, handle),
EVT_FLUSH_OCCURRED_SIZE);
bt_hci_event_complete_flush(hci,
HCI_SUCCESS, PARAMHANDLE(flush));
}
break;
case cmd_opcode_pack(OGF_HOST_CTL, OCF_CHANGE_LOCAL_NAME):
LENGTH_CHECK(change_local_name);
g_free((void *) hci->device.lmp_name);
hci->device.lmp_name = g_strndup(PARAM(change_local_name, name),
sizeof(PARAM(change_local_name, name)));
bt_hci_event_complete_status(hci, HCI_SUCCESS);
break;
case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_LOCAL_NAME):
bt_hci_event_complete_read_local_name(hci);
break;
case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_CONN_ACCEPT_TIMEOUT):
bt_hci_event_complete_read_conn_accept_timeout(hci);
break;
case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_CONN_ACCEPT_TIMEOUT):
/* TODO */
LENGTH_CHECK(write_conn_accept_timeout);
if (PARAM16(write_conn_accept_timeout, timeout) < 0x0001 ||
PARAM16(write_conn_accept_timeout, timeout) > 0xb540) {
bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS);
break;
}
hci->conn_accept_tout = PARAM16(write_conn_accept_timeout, timeout);
bt_hci_event_complete_status(hci, HCI_SUCCESS);
break;
case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_SCAN_ENABLE):
bt_hci_event_complete_read_scan_enable(hci);
break;
case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_SCAN_ENABLE):
LENGTH_CHECK(write_scan_enable);
/* TODO: check that the remaining bits are all 0 */
hci->device.inquiry_scan =
!!(PARAM(write_scan_enable, scan_enable) & SCAN_INQUIRY);
hci->device.page_scan =
!!(PARAM(write_scan_enable, scan_enable) & SCAN_PAGE);
bt_hci_event_complete_status(hci, HCI_SUCCESS);
break;
case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_CLASS_OF_DEV):
bt_hci_event_complete_read_local_class(hci);
break;
case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_CLASS_OF_DEV):
LENGTH_CHECK(write_class_of_dev);
memcpy(hci->device.class, PARAM(write_class_of_dev, dev_class),
sizeof(PARAM(write_class_of_dev, dev_class)));
bt_hci_event_complete_status(hci, HCI_SUCCESS);
break;
case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_VOICE_SETTING):
bt_hci_event_complete_voice_setting(hci);
break;
case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_VOICE_SETTING):
LENGTH_CHECK(write_voice_setting);
hci->voice_setting = PARAM(write_voice_setting, voice_setting);
bt_hci_event_complete_status(hci, HCI_SUCCESS);
break;
case cmd_opcode_pack(OGF_HOST_CTL, OCF_HOST_NUMBER_OF_COMPLETED_PACKETS):
if (length < data[0] * 2 + 1)
goto short_hci;
for (i = 0; i < data[0]; i ++)
if (bt_hci_handle_bad(hci,
data[i * 2 + 1] | (data[i * 2 + 2] << 8)))
bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS);
break;
case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_INQUIRY_MODE):
/* Only if (local_features[3] & 0x40) && (local_commands[12] & 0x40)
* else
* goto unknown_command */
bt_hci_event_complete_read_inquiry_mode(hci);
break;
case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_INQUIRY_MODE):
/* Only if (local_features[3] & 0x40) && (local_commands[12] & 0x80)
* else
* goto unknown_command */
LENGTH_CHECK(write_inquiry_mode);
if (PARAM(write_inquiry_mode, mode) > 0x01) {
bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS);
break;
}
hci->lm.inquiry_mode = PARAM(write_inquiry_mode, mode);
bt_hci_event_complete_status(hci, HCI_SUCCESS);
break;
case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_LOCAL_VERSION):
bt_hci_read_local_version_rp(hci);
break;
case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_LOCAL_COMMANDS):
bt_hci_read_local_commands_rp(hci);
break;
case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_LOCAL_FEATURES):
bt_hci_read_local_features_rp(hci);
break;
case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_LOCAL_EXT_FEATURES):
LENGTH_CHECK(read_local_ext_features);
bt_hci_read_local_ext_features_rp(hci,
PARAM(read_local_ext_features, page_num));
break;
case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_BUFFER_SIZE):
bt_hci_read_buffer_size_rp(hci);
break;
case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_COUNTRY_CODE):
bt_hci_read_country_code_rp(hci);
break;
case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_BD_ADDR):
bt_hci_read_bd_addr_rp(hci);
break;
case cmd_opcode_pack(OGF_STATUS_PARAM, OCF_READ_LINK_QUALITY):
LENGTH_CHECK(read_link_quality);
bt_hci_link_quality_rp(hci, PARAMHANDLE(read_link_quality));
break;
default:
bt_hci_event_status(hci, HCI_UNKNOWN_COMMAND);
break;
short_hci:
fprintf(stderr, "%s: HCI packet too short (%iB)\n",
__FUNCTION__, length);
bt_hci_event_status(hci, HCI_INVALID_PARAMETERS);
break;
}
}
/* We could perform fragmentation here, we can't do "recombination" because
* at this layer the length of the payload is not know ahead, so we only
* know that a packet contained the last fragment of the SDU when the next
* SDU starts. */
static inline void bt_hci_lmp_acl_data(struct bt_hci_s *hci, uint16_t handle,
const uint8_t *data, int start, int len)
{
struct hci_acl_hdr *pkt = (void *) hci->acl_buf;
/* TODO: packet flags */
/* TODO: avoid memcpy'ing */
if (len + HCI_ACL_HDR_SIZE > sizeof(hci->acl_buf)) {
fprintf(stderr, "%s: can't take ACL packets %i bytes long\n",
__FUNCTION__, len);
return;
}
memcpy(hci->acl_buf + HCI_ACL_HDR_SIZE, data, len);
pkt->handle = cpu_to_le16(
acl_handle_pack(handle, start ? ACL_START : ACL_CONT));
pkt->dlen = cpu_to_le16(len);
hci->info.acl_recv(hci->info.opaque,
hci->acl_buf, len + HCI_ACL_HDR_SIZE);
}
static void bt_hci_lmp_acl_data_slave(struct bt_link_s *btlink,
const uint8_t *data, int start, int len)
{
struct bt_hci_link_s *link = (struct bt_hci_link_s *) btlink;
bt_hci_lmp_acl_data(hci_from_device(btlink->slave),
link->handle, data, start, len);
}
static void bt_hci_lmp_acl_data_host(struct bt_link_s *link,
const uint8_t *data, int start, int len)
{
bt_hci_lmp_acl_data(hci_from_device(link->host),
link->handle, data, start, len);
}
static void bt_submit_acl(struct HCIInfo *info,
const uint8_t *data, int length)
{
struct bt_hci_s *hci = hci_from_info(info);
uint16_t handle;
int datalen, flags;
struct bt_link_s *link;
if (length < HCI_ACL_HDR_SIZE) {
fprintf(stderr, "%s: ACL packet too short (%iB)\n",
__FUNCTION__, length);
return;
}
handle = acl_handle((data[1] << 8) | data[0]);
flags = acl_flags((data[1] << 8) | data[0]);
datalen = (data[3] << 8) | data[2];
data += HCI_ACL_HDR_SIZE;
length -= HCI_ACL_HDR_SIZE;
if (bt_hci_handle_bad(hci, handle)) {
fprintf(stderr, "%s: invalid ACL handle %03x\n",
__FUNCTION__, handle);
/* TODO: signal an error */
return;
}
handle &= ~HCI_HANDLE_OFFSET;
if (datalen > length) {
fprintf(stderr, "%s: ACL packet too short (%iB < %iB)\n",
__FUNCTION__, length, datalen);
return;
}
link = hci->lm.handle[handle].link;
if ((flags & ~3) == ACL_ACTIVE_BCAST) {
if (!hci->asb_handle)
hci->asb_handle = handle;
else if (handle != hci->asb_handle) {
fprintf(stderr, "%s: Bad handle %03x in Active Slave Broadcast\n",
__FUNCTION__, handle);
/* TODO: signal an error */
return;
}
/* TODO */
}
if ((flags & ~3) == ACL_PICO_BCAST) {
if (!hci->psb_handle)
hci->psb_handle = handle;
else if (handle != hci->psb_handle) {
fprintf(stderr, "%s: Bad handle %03x in Parked Slave Broadcast\n",
__FUNCTION__, handle);
/* TODO: signal an error */
return;
}
/* TODO */
}
/* TODO: increase counter and send EVT_NUM_COMP_PKTS */
bt_hci_event_num_comp_pkts(hci, handle | HCI_HANDLE_OFFSET, 1);
/* Do this last as it can trigger further events even in this HCI */
hci->lm.handle[handle].lmp_acl_data(link, data,
(flags & 3) == ACL_START, length);
}
static void bt_submit_sco(struct HCIInfo *info,
const uint8_t *data, int length)
{
struct bt_hci_s *hci = hci_from_info(info);
uint16_t handle;
int datalen;
if (length < 3)
return;
handle = acl_handle((data[1] << 8) | data[0]);
datalen = data[2];
length -= 3;
if (bt_hci_handle_bad(hci, handle)) {
fprintf(stderr, "%s: invalid SCO handle %03x\n",
__FUNCTION__, handle);
return;
}
if (datalen > length) {
fprintf(stderr, "%s: SCO packet too short (%iB < %iB)\n",
__FUNCTION__, length, datalen);
return;
}
/* TODO */
/* TODO: increase counter and send EVT_NUM_COMP_PKTS if synchronous
* Flow Control is enabled.
* (See Read/Write_Synchronous_Flow_Control_Enable on page 513 and
* page 514.) */
}
static uint8_t *bt_hci_evt_packet(void *opaque)
{
/* TODO: allocate a packet from upper layer */
struct bt_hci_s *s = opaque;
return s->evt_buf;
}
static void bt_hci_evt_submit(void *opaque, int len)
{
/* TODO: notify upper layer */
struct bt_hci_s *s = opaque;
s->info.evt_recv(s->info.opaque, s->evt_buf, len);
}
static int bt_hci_bdaddr_set(struct HCIInfo *info, const uint8_t *bd_addr)
{
struct bt_hci_s *hci = hci_from_info(info);
bacpy(&hci->device.bd_addr, (const bdaddr_t *) bd_addr);
return 0;
}
static void bt_hci_done(struct HCIInfo *info);
static void bt_hci_destroy(struct bt_device_s *dev)
{
struct bt_hci_s *hci = hci_from_device(dev);
bt_hci_done(&hci->info);
}
struct HCIInfo *bt_new_hci(struct bt_scatternet_s *net)
{
struct bt_hci_s *s = g_malloc0(sizeof(struct bt_hci_s));
s->lm.inquiry_done = timer_new_ns(QEMU_CLOCK_VIRTUAL, bt_hci_inquiry_done, s);
s->lm.inquiry_next = timer_new_ns(QEMU_CLOCK_VIRTUAL, bt_hci_inquiry_next, s);
s->conn_accept_timer =
timer_new_ns(QEMU_CLOCK_VIRTUAL, bt_hci_conn_accept_timeout, s);
s->evt_packet = bt_hci_evt_packet;
s->evt_submit = bt_hci_evt_submit;
s->opaque = s;
bt_device_init(&s->device, net);
s->device.lmp_connection_request = bt_hci_lmp_connection_request;
s->device.lmp_connection_complete = bt_hci_lmp_connection_complete;
s->device.lmp_disconnect_master = bt_hci_lmp_disconnect_host;
s->device.lmp_disconnect_slave = bt_hci_lmp_disconnect_slave;
s->device.lmp_acl_data = bt_hci_lmp_acl_data_slave;
s->device.lmp_acl_resp = bt_hci_lmp_acl_data_host;
s->device.lmp_mode_change = bt_hci_lmp_mode_change_slave;
/* Keep updated! */
/* Also keep in sync with supported commands bitmask in
* bt_hci_read_local_commands_rp */
s->device.lmp_caps = 0x8000199b7e85355fll;
bt_hci_reset(s);
s->info.cmd_send = bt_submit_hci;
s->info.sco_send = bt_submit_sco;
s->info.acl_send = bt_submit_acl;
s->info.bdaddr_set = bt_hci_bdaddr_set;
s->device.handle_destroy = bt_hci_destroy;
error_setg(&s->replay_blocker, QERR_REPLAY_NOT_SUPPORTED, "-bt hci");
replay_add_blocker(s->replay_blocker);
return &s->info;
}
struct HCIInfo *hci_init(const char *str)
{
char *endp;
struct bt_scatternet_s *vlan = 0;
if (!strcmp(str, "null"))
/* null */
return &null_hci;
else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
/* host[:hciN] */
return bt_host_hci(str[4] ? str + 5 : "hci0");
else if (!strncmp(str, "hci", 3)) {
/* hci[,vlan=n] */
if (str[3]) {
if (!strncmp(str + 3, ",vlan=", 6)) {
vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
if (*endp)
vlan = 0;
}
} else
vlan = qemu_find_bt_vlan(0);
if (vlan)
return bt_new_hci(vlan);
}
fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
return 0;
}
static void bt_hci_done(struct HCIInfo *info)
{
struct bt_hci_s *hci = hci_from_info(info);
int handle;
bt_device_done(&hci->device);
g_free((void *) hci->device.lmp_name);
/* Be gentle and send DISCONNECT to all connected peers and those
* currently waiting for us to accept or reject a connection request.
* This frees the links. */
if (hci->conn_req_host) {
bt_hci_connection_reject(hci,
hci->conn_req_host, HCI_OE_POWER_OFF);
return;
}
for (handle = HCI_HANDLE_OFFSET;
handle < (HCI_HANDLE_OFFSET | HCI_HANDLES_MAX); handle ++)
if (!bt_hci_handle_bad(hci, handle))
bt_hci_disconnect(hci, handle, HCI_OE_POWER_OFF);
/* TODO: this is not enough actually, there may be slaves from whom
* we have requested a connection who will soon (or not) respond with
* an accept or a reject, so we should also check if hci->lm.connecting
* is non-zero and if so, avoid freeing the hci but otherwise disappear
* from all qemu social life (e.g. stop scanning and request to be
* removed from s->device.net) and arrange for
* s->device.lmp_connection_complete to free the remaining bits once
* hci->lm.awaiting_bdaddr[] is empty. */
timer_free(hci->lm.inquiry_done);
timer_free(hci->lm.inquiry_next);
timer_free(hci->conn_accept_timer);
g_free(hci);
}