bt_status_t btsock_rfc_connect(const bt_bdaddr_t *bd_addr, const uint8_t *service_uuid, int channel, int *sock_fd, int flags) {
assert(sock_fd != NULL);
assert(service_uuid != NULL || (channel >= 1 && channel <= MAX_RFC_CHANNEL));
*sock_fd = INVALID_FD;
// TODO(sharvil): not sure that this check makes sense; seems like a logic error to call
// functions on RFCOMM sockets before initializing the module. Probably should be an assert.
if (!is_init_done())
return BT_STATUS_NOT_READY;
int status = BT_STATUS_FAIL;
pthread_mutex_lock(&slot_lock);
rfc_slot_t *slot = alloc_rfc_slot(bd_addr, NULL, service_uuid, channel, flags, false);
if (!slot) {
LOG_ERROR(LOG_TAG, "%s unable to allocate RFCOMM slot.", __func__);
goto out;
}
if (is_uuid_empty(service_uuid)) {
tBTA_JV_STATUS ret = BTA_JvRfcommConnect(slot->security, slot->role, slot->scn, slot->addr.address, rfcomm_cback, (void *)(uintptr_t)slot->id);
if (ret != BTA_JV_SUCCESS) {
LOG_ERROR(LOG_TAG, "%s unable to initiate RFCOMM connection: %d", __func__, ret);
cleanup_rfc_slot(slot);
goto out;
}
if (!send_app_scn(slot)) {
LOG_ERROR(LOG_TAG, "%s unable to send channel number.", __func__);
cleanup_rfc_slot(slot);
goto out;
}
} else {
tSDP_UUID sdp_uuid;
sdp_uuid.len = 16;
memcpy(sdp_uuid.uu.uuid128, service_uuid, sizeof(sdp_uuid.uu.uuid128));
if (!is_requesting_sdp()) {
BTA_JvStartDiscovery((uint8_t *)bd_addr->address, 1, &sdp_uuid, (void *)(uintptr_t)slot->id);
slot->f.pending_sdp_request = false;
slot->f.doing_sdp_request = true;
} else {
slot->f.pending_sdp_request = true;
slot->f.doing_sdp_request = false;
}
}
*sock_fd = slot->app_fd; // Transfer ownership of fd to caller.
slot->app_fd = INVALID_FD; // Drop our reference to the fd.
btsock_thread_add_fd(pth, slot->fd, BTSOCK_RFCOMM, SOCK_THREAD_FD_RD, slot->id);
status = BT_STATUS_SUCCESS;
out:;
pthread_mutex_unlock(&slot_lock);
return status;
}
bt_status_t btsock_rfc_listen(const char *service_name, const uint8_t *service_uuid, int channel, int *sock_fd, int flags) {
assert(sock_fd != NULL);
assert((service_uuid != NULL)
|| (channel >= 1 && channel <= MAX_RFC_CHANNEL)
|| ((flags & BTSOCK_FLAG_NO_SDP) != 0));
*sock_fd = INVALID_FD;
// TODO(sharvil): not sure that this check makes sense; seems like a logic error to call
// functions on RFCOMM sockets before initializing the module. Probably should be an assert.
if (!is_init_done())
return BT_STATUS_NOT_READY;
if((flags & BTSOCK_FLAG_NO_SDP) == 0) {
if(is_uuid_empty(service_uuid)) {
APPL_TRACE_DEBUG("BTA_JvGetChannelId: service_uuid not set AND "
"BTSOCK_FLAG_NO_SDP is not set - changing to SPP");
service_uuid = UUID_SPP; // Use serial port profile to listen to specified channel
} else {
//Check the service_uuid. overwrite the channel # if reserved
int reserved_channel = get_reserved_rfc_channel(service_uuid);
if (reserved_channel > 0) {
channel = reserved_channel;
}
}
}
int status = BT_STATUS_FAIL;
pthread_mutex_lock(&slot_lock);
rfc_slot_t *slot = alloc_rfc_slot(NULL, service_name, service_uuid, channel, flags, true);
if (!slot) {
LOG_ERROR(LOG_TAG, "%s unable to allocate RFCOMM slot.", __func__);
goto out;
}
APPL_TRACE_DEBUG("BTA_JvGetChannelId: service_name: %s - channel: %d", service_name, channel);
BTA_JvGetChannelId(BTA_JV_CONN_TYPE_RFCOMM, UINT_TO_PTR(slot->id), channel);
*sock_fd = slot->app_fd; // Transfer ownership of fd to caller.
/*TODO:
* We are leaking one of the app_fd's - either the listen socket, or the connection socket.
* WE need to close this in native, as the FD might belong to another process
- This is the server socket FD
- For accepted connections, we close the FD after passing it to JAVA.
- Try to simply remove the = -1 to free the FD at rs cleanup.*/
// close(rs->app_fd);
slot->app_fd = INVALID_FD; // Drop our reference to the fd.
btsock_thread_add_fd(pth, slot->fd, BTSOCK_RFCOMM, SOCK_THREAD_FD_EXCEPTION, slot->id);
status = BT_STATUS_SUCCESS;
out:;
pthread_mutex_unlock(&slot_lock);
return status;
}
static rfc_slot_t *alloc_rfc_slot(const bt_bdaddr_t *addr, const char *name, const uint8_t *uuid, int channel, int flags, bool server) {
int security = 0;
if(flags & BTSOCK_FLAG_ENCRYPT)
security |= server ? BTM_SEC_IN_ENCRYPT : BTM_SEC_OUT_ENCRYPT;
if(flags & BTSOCK_FLAG_AUTH)
security |= server ? BTM_SEC_IN_AUTHENTICATE : BTM_SEC_OUT_AUTHENTICATE;
rfc_slot_t *slot = find_free_slot();
if (!slot) {
LOG_ERROR(LOG_TAG, "%s unable to find free RFCOMM slot.", __func__);
return NULL;
}
int fds[2] = { INVALID_FD, INVALID_FD };
if (socketpair(AF_LOCAL, SOCK_STREAM, 0, fds) == -1) {
LOG_ERROR(LOG_TAG, "%s error creating socketpair: %s", __func__, strerror(errno));
return NULL;
}
// Increment slot id and make sure we don't use id=0.
if (++rfc_slot_id == 0)
rfc_slot_id = 1;
slot->fd = fds[0];
slot->app_fd = fds[1];
slot->security = security;
slot->scn = channel;
if(!is_uuid_empty(uuid)) {
memcpy(slot->service_uuid, uuid, sizeof(slot->service_uuid));
slot->is_service_uuid_valid = true;
} else {
memset(slot->service_uuid, 0, sizeof(slot->service_uuid));
slot->is_service_uuid_valid = false;
}
if(name && *name) {
strlcpy(slot->service_name, name, sizeof(slot->service_name));
} else {
memset(slot->service_name, 0, sizeof(slot->service_name));
}
if (addr)
slot->addr = *addr;
slot->id = rfc_slot_id;
slot->f.server = server;
return slot;
}
bt_status_t btsock_rfc_listen(const char* service_name, const uint8_t* service_uuid, int channel,
int* sock_fd, int flags)
{
APPL_TRACE_DEBUG1("btsock_rfc_listen, service_name:%s", service_name);
if(sock_fd == NULL || (service_uuid == NULL && (channel < 1 || channel > 30)))
{
APPL_TRACE_ERROR3("invalid rfc channel:%d or sock_fd:%p, uuid:%p", channel, sock_fd, service_uuid);
return BT_STATUS_PARM_INVALID;
}
*sock_fd = -1;
if(!is_init_done())
return BT_STATUS_NOT_READY;
if(is_uuid_empty(service_uuid))
service_uuid = UUID_SPP; //use serial port profile to listen to specified channel
else
{
//Check the service_uuid. overwrite the channel # if reserved
int reserved_channel = get_reserved_rfc_channel(service_uuid);
if(reserved_channel > 0)
{
channel = reserved_channel;
}
}
int status = BT_STATUS_FAIL;
lock_slot(&slot_lock);
rfc_slot_t* rs = alloc_rfc_slot(NULL, service_name, service_uuid, channel, flags, TRUE);
if(rs)
{
APPL_TRACE_DEBUG1("BTA_JvCreateRecordByUser:%s", service_name);
BTA_JvCreateRecordByUser((void *)rs->id);
*sock_fd = rs->app_fd;
rs->app_fd = -1; //the fd ownership is transferred to app
status = BT_STATUS_SUCCESS;
btsock_thread_add_fd(pth, rs->fd, BTSOCK_RFCOMM, SOCK_THREAD_FD_EXCEPTION, rs->id);
}
unlock_slot(&slot_lock);
return status;
}
bt_status_t btsock_rfc_connect(const bt_bdaddr_t *bd_addr, const uint8_t* service_uuid,
int channel, int* sock_fd, int flags)
{
if(sock_fd == NULL || (service_uuid == NULL && (channel < 1 || channel > 30)))
{
APPL_TRACE_ERROR3("invalid rfc channel:%d or sock_fd:%p, uuid:%p", channel, sock_fd,
service_uuid);
return BT_STATUS_PARM_INVALID;
}
*sock_fd = -1;
if(!is_init_done())
return BT_STATUS_NOT_READY;
int status = BT_STATUS_FAIL;
lock_slot(&slot_lock);
rfc_slot_t* rs = alloc_rfc_slot(bd_addr, NULL, service_uuid, channel, flags, FALSE);
if(rs)
{
if(is_uuid_empty(service_uuid))
{
APPL_TRACE_DEBUG1("connecting to rfcomm channel:%d without service discovery", channel);
if(BTA_JvRfcommConnect(rs->security, rs->role, rs->scn, rs->addr.address,
rfcomm_cback, (void*)rs->id) == BTA_JV_SUCCESS)
{
if(send_app_scn(rs))
{
btsock_thread_add_fd(pth, rs->fd, BTSOCK_RFCOMM,
SOCK_THREAD_FD_RD, rs->id);
*sock_fd = rs->app_fd;
rs->app_fd = -1; //the fd ownership is transferred to app
status = BT_STATUS_SUCCESS;
}
else cleanup_rfc_slot(rs);
}
else cleanup_rfc_slot(rs);
}
else
{
tSDP_UUID sdp_uuid;
sdp_uuid.len = 16;
memcpy(sdp_uuid.uu.uuid128, service_uuid, sizeof(sdp_uuid.uu.uuid128));
logu("service_uuid", service_uuid);
*sock_fd = rs->app_fd;
rs->app_fd = -1; //the fd ownership is transferred to app
status = BT_STATUS_SUCCESS;
rfc_slot_t* rs_doing_sdp = find_rfc_slot_requesting_sdp();
if(rs_doing_sdp == NULL)
{
BTA_JvStartDiscovery((UINT8*)bd_addr->address, 1, &sdp_uuid, (void*)rs->id);
rs->f.pending_sdp_request = FALSE;
rs->f.doing_sdp_request = TRUE;
}
else
{
rs->f.pending_sdp_request = TRUE;
rs->f.doing_sdp_request = FALSE;
}
btsock_thread_add_fd(pth, rs->fd, BTSOCK_RFCOMM, SOCK_THREAD_FD_RD, rs->id);
}
}
unlock_slot(&slot_lock);
return status;
}
bt_status_t btsock_l2c_connect(const bt_bdaddr_t *bd_addr, const uint8_t* service_uuid,
int channel, int* sock_fd, int flags)
{
if(sock_fd == NULL || (service_uuid == NULL))
{
APPL_TRACE_ERROR("invalid sock_fd:%p, uuid:%p", sock_fd, service_uuid);
return BT_STATUS_PARM_INVALID;
}
*sock_fd = -1;
if(!is_init_done())
return BT_STATUS_NOT_READY;
int status = BT_STATUS_FAIL;
lock_slot(&slot_lock);
l2c_slot_t* ls = alloc_l2c_slot(bd_addr, NULL, service_uuid, channel, flags, FALSE);
if(ls)
{
ls->f.client = TRUE;
if(is_uuid_empty(service_uuid))
{
APPL_TRACE_DEBUG("connecting to l2cap channel:%d without service discovery", channel);
if(BTA_JvL2capConnect(ls->security, ls->role, ls->psm, 672, ls->addr.address,
l2cap_cback, (void*)ls->id) == BTA_JV_SUCCESS)
{
if(send_app_psm(ls))
{
btsock_thread_add_fd(pth, ls->fd, BTSOCK_L2CAP,
SOCK_THREAD_FD_RD, ls->id);
*sock_fd = ls->app_fd;
ls->app_fd = -1; //the fd ownelship is transferred to app
status = BT_STATUS_SUCCESS;
}
else cleanup_l2c_slot(ls);
}
else cleanup_l2c_slot(ls);
}
else
{
tSDP_UUID sdp_uuid;
sdp_uuid.len = 16;
memcpy(sdp_uuid.uu.uuid128, service_uuid, sizeof(sdp_uuid.uu.uuid128));
logu("service_uuid", service_uuid);
*sock_fd = ls->app_fd;
ls->app_fd = -1; //the fd ownelship is transferred to app
status = BT_STATUS_SUCCESS;
l2c_slot_t* ls_doing_sdp = find_l2c_slot_requesting_sdp();
if(ls_doing_sdp == NULL)
{
BTA_JvStartDiscovery((UINT8*)bd_addr->address, 1, &sdp_uuid, (void*)(ls->id));
ls->f.pending_sdp_request = FALSE;
ls->f.doing_sdp_request = TRUE;
}
else
{
ls->f.pending_sdp_request = TRUE;
ls->f.doing_sdp_request = FALSE;
}
btsock_thread_add_fd(pth, ls->fd, BTSOCK_L2CAP, SOCK_THREAD_FD_RD, ls->id);
}
}
unlock_slot(&slot_lock);
return status;
}
