/****************************************************************************** * * Copyright 2006-2012 Broadcom Corporation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ******************************************************************************/ /****************************************************************************** * * This file contains action functions for BTA JV APIs. * ******************************************************************************/ #define LOG_TAG "bluetooth" #include #include #include "bt_target.h" // Must be first to define build configuration #include "bta/include/bta_jv_co.h" #include "bta/jv/bta_jv_int.h" #include "bta/sys/bta_sys.h" #include "osi/include/allocator.h" #include "stack/btm/btm_sec.h" #include "stack/include/avct_api.h" // AVCT_PSM #include "stack/include/avdt_api.h" // AVDT_PSM #include "stack/include/gap_api.h" #include "stack/include/port_api.h" #include "types/bluetooth/uuid.h" #include "types/raw_address.h" using bluetooth::Uuid; tBTA_JV_CB bta_jv_cb; std::unordered_set used_l2cap_classic_dynamic_psm; static tBTA_JV_PCB* bta_jv_add_rfc_port(tBTA_JV_RFC_CB* p_cb, tBTA_JV_PCB* p_pcb_open); static tBTA_JV_STATUS bta_jv_free_set_pm_profile_cb(uint32_t jv_handle); static void bta_jv_pm_conn_busy(tBTA_JV_PM_CB* p_cb); static void bta_jv_pm_conn_idle(tBTA_JV_PM_CB* p_cb); static void bta_jv_pm_state_change(tBTA_JV_PM_CB* p_cb, const tBTA_JV_CONN_STATE state); /******************************************************************************* * * Function bta_jv_alloc_sec_id * * Description allocate a security id * * Returns * ******************************************************************************/ uint8_t bta_jv_alloc_sec_id(void) { uint8_t ret = 0; int i; for (i = 0; i < BTA_JV_NUM_SERVICE_ID; i++) { if (0 == bta_jv_cb.sec_id[i]) { bta_jv_cb.sec_id[i] = BTA_JV_FIRST_SERVICE_ID + i; ret = bta_jv_cb.sec_id[i]; break; } } return ret; } static int get_sec_id_used(void) { int i; int used = 0; for (i = 0; i < BTA_JV_NUM_SERVICE_ID; i++) { if (bta_jv_cb.sec_id[i]) used++; } if (used == BTA_JV_NUM_SERVICE_ID) LOG(ERROR) << __func__ << ": sec id exceeds the limit=" << BTA_JV_NUM_SERVICE_ID; return used; } static int get_rfc_cb_used(void) { int i; int used = 0; for (i = 0; i < BTA_JV_MAX_RFC_CONN; i++) { if (bta_jv_cb.rfc_cb[i].handle) used++; } if (used == BTA_JV_MAX_RFC_CONN) LOG(ERROR) << __func__ << ": rfc ctrl block exceeds the limit=" << BTA_JV_MAX_RFC_CONN; return used; } /******************************************************************************* * * Function bta_jv_free_sec_id * * Description free the given security id * * Returns * ******************************************************************************/ static void bta_jv_free_sec_id(uint8_t* p_sec_id) { uint8_t sec_id = *p_sec_id; *p_sec_id = 0; if (sec_id >= BTA_JV_FIRST_SERVICE_ID && sec_id <= BTA_JV_LAST_SERVICE_ID) { BTM_SecClrService(sec_id); bta_jv_cb.sec_id[sec_id - BTA_JV_FIRST_SERVICE_ID] = 0; } } /******************************************************************************* * * Function bta_jv_alloc_rfc_cb * * Description allocate a control block for the given port handle * * Returns * ******************************************************************************/ tBTA_JV_RFC_CB* bta_jv_alloc_rfc_cb(uint16_t port_handle, tBTA_JV_PCB** pp_pcb) { tBTA_JV_RFC_CB* p_cb = NULL; tBTA_JV_PCB* p_pcb; int i, j; for (i = 0; i < BTA_JV_MAX_RFC_CONN; i++) { if (0 == bta_jv_cb.rfc_cb[i].handle) { p_cb = &bta_jv_cb.rfc_cb[i]; /* mask handle to distinguish it with L2CAP handle */ p_cb->handle = (i + 1) | BTA_JV_RFCOMM_MASK; p_cb->max_sess = 1; p_cb->curr_sess = 1; for (j = 0; j < BTA_JV_MAX_RFC_SR_SESSION; j++) p_cb->rfc_hdl[j] = 0; p_cb->rfc_hdl[0] = port_handle; VLOG(2) << __func__ << "port_handle=" << +port_handle << ", handle=" << loghex(p_cb->handle); p_pcb = &bta_jv_cb.port_cb[port_handle - 1]; p_pcb->handle = p_cb->handle; p_pcb->port_handle = port_handle; p_pcb->p_pm_cb = NULL; *pp_pcb = p_pcb; break; } } if (p_cb == NULL) { LOG(ERROR) << __func__ << "port_handle=" << port_handle << " ctrl block exceeds limit:" << BTA_JV_MAX_RFC_CONN; } return p_cb; } /******************************************************************************* * * Function bta_jv_rfc_port_to_pcb * * Description find the port control block associated with the given port * handle * * Returns * ******************************************************************************/ tBTA_JV_PCB* bta_jv_rfc_port_to_pcb(uint16_t port_handle) { tBTA_JV_PCB* p_pcb = NULL; if ((port_handle > 0) && (port_handle <= MAX_RFC_PORTS) && bta_jv_cb.port_cb[port_handle - 1].handle) { p_pcb = &bta_jv_cb.port_cb[port_handle - 1]; } return p_pcb; } /******************************************************************************* * * Function bta_jv_rfc_port_to_cb * * Description find the RFCOMM control block associated with the given port * handle * * Returns * ******************************************************************************/ tBTA_JV_RFC_CB* bta_jv_rfc_port_to_cb(uint16_t port_handle) { tBTA_JV_RFC_CB* p_cb = NULL; uint32_t handle; if ((port_handle > 0) && (port_handle <= MAX_RFC_PORTS) && bta_jv_cb.port_cb[port_handle - 1].handle) { handle = bta_jv_cb.port_cb[port_handle - 1].handle; handle &= BTA_JV_RFC_HDL_MASK; handle &= ~BTA_JV_RFCOMM_MASK; if (handle) p_cb = &bta_jv_cb.rfc_cb[handle - 1]; } else { LOG(WARNING) << __func__ << ": jv handle not found port_handle:" << port_handle; } return p_cb; } static tBTA_JV_STATUS bta_jv_free_rfc_cb(tBTA_JV_RFC_CB* p_cb, tBTA_JV_PCB* p_pcb) { tBTA_JV_STATUS status = BTA_JV_SUCCESS; bool remove_server = false; int close_pending = 0; if (!p_cb || !p_pcb) { LOG(ERROR) << __func__ << " p_cb or p_pcb cannot be null"; return BTA_JV_FAILURE; } VLOG(2) << __func__ << ": max_sess=" << p_cb->max_sess << ", curr_sess=" << p_cb->curr_sess << ", p_pcb=" << p_pcb << ", user=" << p_pcb->rfcomm_slot_id << ", state=" << p_pcb->state << ", jv handle=" << loghex(p_pcb->handle); if (p_cb->curr_sess <= 0) return BTA_JV_SUCCESS; switch (p_pcb->state) { case BTA_JV_ST_CL_CLOSING: case BTA_JV_ST_SR_CLOSING: LOG(WARNING) << __func__ << ": return on closing, port state=" << p_pcb->state << ", scn=" << p_cb->scn << ", p_pcb=" << p_pcb << ", user_data=" << p_pcb->rfcomm_slot_id; status = BTA_JV_FAILURE; return status; case BTA_JV_ST_CL_OPEN: case BTA_JV_ST_CL_OPENING: VLOG(2) << __func__ << ": state=" << p_pcb->state << ", scn=" << p_cb->scn << ", user_data=" << p_pcb->rfcomm_slot_id; p_pcb->state = BTA_JV_ST_CL_CLOSING; break; case BTA_JV_ST_SR_LISTEN: p_pcb->state = BTA_JV_ST_SR_CLOSING; remove_server = true; VLOG(2) << __func__ << ": state: BTA_JV_ST_SR_LISTEN, scn=" << p_cb->scn << ", user_data=" << p_pcb->rfcomm_slot_id; break; case BTA_JV_ST_SR_OPEN: p_pcb->state = BTA_JV_ST_SR_CLOSING; VLOG(2) << ": state: BTA_JV_ST_SR_OPEN, scn=" << p_cb->scn << " user_data=" << p_pcb->rfcomm_slot_id; break; default: LOG(WARNING) << __func__ << ":failed, ignore port state= " << p_pcb->state << ", scn=" << p_cb->scn << ", p_pcb= " << p_pcb << ", jv handle=" << loghex(p_pcb->handle) << ", port_handle=" << p_pcb->port_handle << ", user_data=" << p_pcb->rfcomm_slot_id; status = BTA_JV_FAILURE; break; } if (BTA_JV_SUCCESS == status) { int port_status; if (!remove_server) port_status = RFCOMM_RemoveConnection(p_pcb->port_handle); else port_status = RFCOMM_RemoveServer(p_pcb->port_handle); if (port_status != PORT_SUCCESS) { status = BTA_JV_FAILURE; LOG(WARNING) << __func__ << ": Remove jv handle=" << loghex(p_pcb->handle) << ", state=" << p_pcb->state << ", port_status=" << port_status << ", port_handle=" << p_pcb->port_handle << ", close_pending=" << close_pending; } } if (!close_pending) { p_pcb->port_handle = 0; p_pcb->state = BTA_JV_ST_NONE; bta_jv_free_set_pm_profile_cb(p_pcb->handle); // Initialize congestion flags p_pcb->cong = false; p_pcb->rfcomm_slot_id = 0; int si = BTA_JV_RFC_HDL_TO_SIDX(p_pcb->handle); if (0 <= si && si < BTA_JV_MAX_RFC_SR_SESSION) p_cb->rfc_hdl[si] = 0; p_pcb->handle = 0; p_cb->curr_sess--; if (p_cb->curr_sess == 0) { RFCOMM_ClearSecurityRecord(p_cb->scn); p_cb->scn = 0; p_cb->p_cback = NULL; p_cb->handle = 0; p_cb->curr_sess = -1; } if (remove_server) { RFCOMM_ClearSecurityRecord(p_cb->scn); } } return status; } /******************************************************************************* * * Function bta_jv_free_l2c_cb * * Description free the given L2CAP control block * * Returns * ******************************************************************************/ tBTA_JV_STATUS bta_jv_free_l2c_cb(tBTA_JV_L2C_CB* p_cb) { tBTA_JV_STATUS status = BTA_JV_SUCCESS; if (BTA_JV_ST_NONE != p_cb->state) { bta_jv_free_set_pm_profile_cb((uint32_t)p_cb->handle); if (GAP_ConnClose(p_cb->handle) != BT_PASS) status = BTA_JV_FAILURE; } p_cb->psm = 0; p_cb->state = BTA_JV_ST_NONE; p_cb->cong = false; bta_jv_free_sec_id(&p_cb->sec_id); p_cb->p_cback = NULL; p_cb->handle = 0; p_cb->l2cap_socket_id = 0; return status; } /******************************************************************************* * * * Function bta_jv_clear_pm_cb * * Description clears jv pm control block and optionally calls * bta_sys_conn_close() * In general close_conn should be set to true to remove registering * with dm pm! * * WARNING: Make sure to clear pointer form port or l2c to this control block * too! * ******************************************************************************/ static void bta_jv_clear_pm_cb(tBTA_JV_PM_CB* p_pm_cb, bool close_conn) { /* needs to be called if registered with bta pm, otherwise we may run out of * dm pm slots! */ if (close_conn) bta_sys_conn_close(BTA_ID_JV, p_pm_cb->app_id, p_pm_cb->peer_bd_addr); p_pm_cb->state = BTA_JV_PM_FREE_ST; p_pm_cb->app_id = BTA_JV_PM_ALL; p_pm_cb->handle = BTA_JV_PM_HANDLE_CLEAR; p_pm_cb->peer_bd_addr = RawAddress::kEmpty; } /******************************************************************************* * * Function bta_jv_free_set_pm_profile_cb * * Description free pm profile control block * * Returns BTA_JV_SUCCESS if cb has been freed correctly, * BTA_JV_FAILURE in case of no profile has been registered or * already freed * ******************************************************************************/ static tBTA_JV_STATUS bta_jv_free_set_pm_profile_cb(uint32_t jv_handle) { tBTA_JV_STATUS status = BTA_JV_FAILURE; tBTA_JV_PM_CB** p_cb; int i, j, bd_counter = 0, appid_counter = 0; for (i = 0; i < BTA_JV_PM_MAX_NUM; i++) { p_cb = NULL; if ((bta_jv_cb.pm_cb[i].state != BTA_JV_PM_FREE_ST) && (jv_handle == bta_jv_cb.pm_cb[i].handle)) { for (j = 0; j < BTA_JV_PM_MAX_NUM; j++) { if (bta_jv_cb.pm_cb[j].peer_bd_addr == bta_jv_cb.pm_cb[i].peer_bd_addr) bd_counter++; if (bta_jv_cb.pm_cb[j].app_id == bta_jv_cb.pm_cb[i].app_id) appid_counter++; } VLOG(2) << __func__ << ": jv_handle=" << loghex(jv_handle) << ", idx=" << i << "app_id=" << bta_jv_cb.pm_cb[i].app_id << ", bd_counter=" << bd_counter << ", appid_counter=" << appid_counter; if (bd_counter > 1) { bta_jv_pm_conn_idle(&bta_jv_cb.pm_cb[i]); } if (bd_counter <= 1 || (appid_counter <= 1)) { bta_jv_clear_pm_cb(&bta_jv_cb.pm_cb[i], true); } else { bta_jv_clear_pm_cb(&bta_jv_cb.pm_cb[i], false); } if (BTA_JV_RFCOMM_MASK & jv_handle) { uint32_t hi = ((jv_handle & BTA_JV_RFC_HDL_MASK) & ~BTA_JV_RFCOMM_MASK) - 1; uint32_t si = BTA_JV_RFC_HDL_TO_SIDX(jv_handle); if (hi < BTA_JV_MAX_RFC_CONN && bta_jv_cb.rfc_cb[hi].p_cback && si < BTA_JV_MAX_RFC_SR_SESSION && bta_jv_cb.rfc_cb[hi].rfc_hdl[si]) { tBTA_JV_PCB* p_pcb = bta_jv_rfc_port_to_pcb(bta_jv_cb.rfc_cb[hi].rfc_hdl[si]); if (p_pcb) { if (NULL == p_pcb->p_pm_cb) LOG(WARNING) << __func__ << ": jv_handle=" << loghex(jv_handle) << ", port_handle=" << p_pcb->port_handle << ", i=" << i << ", no link to pm_cb?"; p_cb = &p_pcb->p_pm_cb; } } } else { if (jv_handle < BTA_JV_MAX_L2C_CONN) { tBTA_JV_L2C_CB* p_l2c_cb = &bta_jv_cb.l2c_cb[jv_handle]; if (NULL == p_l2c_cb->p_pm_cb) LOG(WARNING) << __func__ << ": jv_handle=" << loghex(jv_handle) << ", i=" << i << " no link to pm_cb?"; p_cb = &p_l2c_cb->p_pm_cb; } } if (p_cb) { *p_cb = NULL; status = BTA_JV_SUCCESS; } } } return status; } /******************************************************************************* * * Function bta_jv_alloc_set_pm_profile_cb * * Description set PM profile control block * * Returns pointer to allocated cb or NULL in case of failure * ******************************************************************************/ static tBTA_JV_PM_CB* bta_jv_alloc_set_pm_profile_cb(uint32_t jv_handle, tBTA_JV_PM_ID app_id) { bool bRfcHandle = (jv_handle & BTA_JV_RFCOMM_MASK) != 0; RawAddress peer_bd_addr = RawAddress::kEmpty; int i, j; tBTA_JV_PM_CB** pp_cb; for (i = 0; i < BTA_JV_PM_MAX_NUM; i++) { pp_cb = NULL; if (bta_jv_cb.pm_cb[i].state == BTA_JV_PM_FREE_ST) { /* rfc handle bd addr retrieval requires core stack handle */ if (bRfcHandle) { for (j = 0; j < BTA_JV_MAX_RFC_CONN; j++) { if (jv_handle == bta_jv_cb.port_cb[j].handle) { pp_cb = &bta_jv_cb.port_cb[j].p_pm_cb; if (PORT_SUCCESS != PORT_CheckConnection(bta_jv_cb.port_cb[j].port_handle, &peer_bd_addr, NULL)) { i = BTA_JV_PM_MAX_NUM; } break; } } } else { /* use jv handle for l2cap bd address retrieval */ for (j = 0; j < BTA_JV_MAX_L2C_CONN; j++) { if (jv_handle == bta_jv_cb.l2c_cb[j].handle) { pp_cb = &bta_jv_cb.l2c_cb[j].p_pm_cb; const RawAddress* p_bd_addr = GAP_ConnGetRemoteAddr((uint16_t)jv_handle); if (p_bd_addr) peer_bd_addr = *p_bd_addr; else i = BTA_JV_PM_MAX_NUM; break; } } } VLOG(2) << __func__ << ": handle=" << loghex(jv_handle) << ", app_id=" << app_id << ", idx=" << i << ", BTA_JV_PM_MAX_NUM=" << BTA_JV_PM_MAX_NUM << ", pp_cb=" << pp_cb; break; } } if ((i != BTA_JV_PM_MAX_NUM) && (NULL != pp_cb)) { *pp_cb = &bta_jv_cb.pm_cb[i]; bta_jv_cb.pm_cb[i].handle = jv_handle; bta_jv_cb.pm_cb[i].app_id = app_id; bta_jv_cb.pm_cb[i].peer_bd_addr = peer_bd_addr; bta_jv_cb.pm_cb[i].state = BTA_JV_PM_IDLE_ST; return &bta_jv_cb.pm_cb[i]; } LOG(WARNING) << __func__ << ": handle=" << loghex(jv_handle) << ", app_id=" << app_id << ", return NULL"; return NULL; } /******************************************************************************* * * Function bta_jv_check_psm * * Description for now use only the legal PSM per JSR82 spec * * Returns true, if allowed * ******************************************************************************/ bool bta_jv_check_psm(uint16_t psm) { bool ret = false; if (L2C_IS_VALID_PSM(psm)) { if (psm < 0x1001) { /* see if this is defined by spec */ switch (psm) { case BT_PSM_SDP: case BT_PSM_RFCOMM: /* 3 */ /* do not allow java app to use these 2 PSMs */ break; case BT_PSM_TCS: case BT_PSM_CTP: if (!bta_sys_is_register(BTA_ID_CT) && !bta_sys_is_register(BTA_ID_CG)) ret = true; break; case BT_PSM_BNEP: /* F */ if (!bta_sys_is_register(BTA_ID_PAN)) ret = true; break; case BT_PSM_HIDC: case BT_PSM_HIDI: // FIX: allow HID Device and HID Host to coexist if (!bta_sys_is_register(BTA_ID_HD) || !bta_sys_is_register(BTA_ID_HH)) ret = true; break; case AVCT_PSM: /* 0x17 */ case AVDT_PSM: /* 0x19 */ if (!bta_sys_is_register(BTA_ID_AV)) ret = true; break; default: ret = true; break; } } else { ret = true; } } return ret; } /* Initialises the JAVA I/F */ void bta_jv_enable(tBTA_JV_DM_CBACK* p_cback) { tBTA_JV_STATUS status = BTA_JV_SUCCESS; bta_jv_cb.p_dm_cback = p_cback; tBTA_JV bta_jv; bta_jv.status = status; bta_jv_cb.p_dm_cback(BTA_JV_ENABLE_EVT, &bta_jv, 0); memset(bta_jv_cb.free_psm_list, 0, sizeof(bta_jv_cb.free_psm_list)); } /** Disables the BT device manager free the resources used by java */ void bta_jv_disable() { LOG(INFO) << __func__; } /** * We keep a list of PSM's that have been freed from JAVA, for reuse. * This function will return a free PSM, and delete it from the free * list. * If no free PSMs exist, 0 will be returned. */ static uint16_t bta_jv_get_free_psm() { const int cnt = sizeof(bta_jv_cb.free_psm_list) / sizeof(bta_jv_cb.free_psm_list[0]); for (int i = 0; i < cnt; i++) { uint16_t psm = bta_jv_cb.free_psm_list[i]; if (psm != 0) { VLOG(2) << __func__ << ": Reusing PSM=" << loghex(psm); bta_jv_cb.free_psm_list[i] = 0; return psm; } } return 0; } static void bta_jv_set_free_psm(uint16_t psm) { int free_index = -1; const int cnt = sizeof(bta_jv_cb.free_psm_list) / sizeof(bta_jv_cb.free_psm_list[0]); for (int i = 0; i < cnt; i++) { if (bta_jv_cb.free_psm_list[i] == 0) { free_index = i; } else if (psm == bta_jv_cb.free_psm_list[i]) { return; // PSM already freed? } } if (free_index != -1) { bta_jv_cb.free_psm_list[free_index] = psm; VLOG(2) << __func__ << ": Recycling PSM=" << loghex(psm); } else { LOG(ERROR) << __func__ << ": unable to free psm=" << loghex(psm) << " no more free slots"; } } static uint16_t bta_jv_allocate_l2cap_classic_psm() { bool done = false; uint16_t psm = bta_jv_cb.dyn_psm; while (!done) { psm += 2; if (psm > 0xfeff) { psm = 0x1001; } else if (psm & 0x0100) { /* the upper byte must be even */ psm += 0x0100; } /* if psm is in range of reserved BRCM Aware features */ if ((BRCM_RESERVED_PSM_START <= psm) && (psm <= BRCM_RESERVED_PSM_END)) continue; /* make sure the newlly allocated psm is not used right now */ if (used_l2cap_classic_dynamic_psm.count(psm) == 0) done = true; } bta_jv_cb.dyn_psm = psm; return (psm); } /** Obtain a free SCN (Server Channel Number) (RFCOMM channel or L2CAP PSM) */ void bta_jv_get_channel_id( int32_t type /* One of BTA_JV_CONN_TYPE_ */, int32_t channel /* optionally request a specific channel */, uint32_t l2cap_socket_id, uint32_t rfcomm_slot_id) { uint16_t psm = 0; switch (type) { case BTA_JV_CONN_TYPE_RFCOMM: { uint8_t scn = 0; if (channel > 0) { if (!BTM_TryAllocateSCN(channel)) { LOG(ERROR) << "rfc channel=" << channel << " already in use or invalid"; channel = 0; } } else { channel = BTM_AllocateSCN(); if (channel == 0) { LOG(ERROR) << "run out of rfc channels"; channel = 0; } } if (channel != 0) { bta_jv_cb.scn[channel - 1] = true; scn = (uint8_t)channel; } if (bta_jv_cb.p_dm_cback) { tBTA_JV bta_jv; bta_jv.scn = scn; bta_jv_cb.p_dm_cback(BTA_JV_GET_SCN_EVT, &bta_jv, rfcomm_slot_id); } return; } case BTA_JV_CONN_TYPE_L2CAP: psm = bta_jv_get_free_psm(); if (psm == 0) { psm = bta_jv_allocate_l2cap_classic_psm(); VLOG(2) << __func__ << ": returned PSM=" << loghex(psm); } break; case BTA_JV_CONN_TYPE_L2CAP_LE: psm = L2CA_AllocateLePSM(); if (psm == 0) { LOG(ERROR) << __func__ << ": Error: No free LE PSM available"; } break; default: break; } if (bta_jv_cb.p_dm_cback) { tBTA_JV bta_jv; bta_jv.psm = psm; bta_jv_cb.p_dm_cback(BTA_JV_GET_PSM_EVT, &bta_jv, l2cap_socket_id); } } /** free a SCN */ void bta_jv_free_scn(int32_t type /* One of BTA_JV_CONN_TYPE_ */, uint16_t scn) { switch (type) { case BTA_JV_CONN_TYPE_RFCOMM: { if (scn > 0 && scn <= BTA_JV_MAX_SCN && bta_jv_cb.scn[scn - 1]) { /* this scn is used by JV */ bta_jv_cb.scn[scn - 1] = false; BTM_FreeSCN(scn); } break; } case BTA_JV_CONN_TYPE_L2CAP: bta_jv_set_free_psm(scn); break; case BTA_JV_CONN_TYPE_L2CAP_LE: VLOG(2) << __func__ << ": type=BTA_JV_CONN_TYPE_L2CAP_LE. psm=" << scn; L2CA_FreeLePSM(scn); break; default: break; } } /******************************************************************************* * * Function bta_jv_start_discovery_cback * * Description Callback for Start Discovery * * Returns void * ******************************************************************************/ static void bta_jv_start_discovery_cback(tSDP_RESULT result, void* user_data) { tBTA_JV_STATUS status; uint32_t* p_rfcomm_slot_id = static_cast(user_data); VLOG(2) << __func__ << ": res=" << loghex(static_cast(result)); bta_jv_cb.sdp_active = BTA_JV_SDP_ACT_NONE; if (bta_jv_cb.p_dm_cback) { tBTA_JV_DISCOVERY_COMP dcomp; dcomp.scn = 0; status = BTA_JV_FAILURE; if (result == SDP_SUCCESS || result == SDP_DB_FULL) { tSDP_DISC_REC* p_sdp_rec = NULL; tSDP_PROTOCOL_ELEM pe; VLOG(2) << __func__ << ": bta_jv_cb.uuid=" << bta_jv_cb.uuid; p_sdp_rec = SDP_FindServiceUUIDInDb(p_bta_jv_cfg->p_sdp_db, bta_jv_cb.uuid, p_sdp_rec); VLOG(2) << __func__ << ": p_sdp_rec=" << p_sdp_rec; if (p_sdp_rec && SDP_FindProtocolListElemInRec(p_sdp_rec, UUID_PROTOCOL_RFCOMM, &pe)) { dcomp.scn = (uint8_t)pe.params[0]; status = BTA_JV_SUCCESS; } } dcomp.status = status; tBTA_JV bta_jv; bta_jv.disc_comp = dcomp; bta_jv_cb.p_dm_cback(BTA_JV_DISCOVERY_COMP_EVT, &bta_jv, *p_rfcomm_slot_id); osi_free(p_rfcomm_slot_id); } } /* Discovers services on a remote device */ void bta_jv_start_discovery(const RawAddress& bd_addr, uint16_t num_uuid, bluetooth::Uuid* uuid_list, uint32_t rfcomm_slot_id) { tBTA_JV_STATUS status = BTA_JV_FAILURE; VLOG(2) << __func__ << ": in, sdp_active=" << bta_jv_cb.sdp_active; if (bta_jv_cb.sdp_active != BTA_JV_SDP_ACT_NONE) { /* SDP is still in progress */ status = BTA_JV_BUSY; if (bta_jv_cb.p_dm_cback) { tBTA_JV bta_jv; bta_jv.status = status; bta_jv_cb.p_dm_cback(BTA_JV_DISCOVERY_COMP_EVT, &bta_jv, rfcomm_slot_id); } return; } /* init the database/set up the filter */ VLOG(2) << __func__ << ": call SDP_InitDiscoveryDb, num_uuid=" << num_uuid; SDP_InitDiscoveryDb(p_bta_jv_cfg->p_sdp_db, p_bta_jv_cfg->sdp_db_size, num_uuid, uuid_list, 0, NULL); /* tell SDP to keep the raw data */ p_bta_jv_cfg->p_sdp_db->raw_data = p_bta_jv_cfg->p_sdp_raw_data; p_bta_jv_cfg->p_sdp_db->raw_size = p_bta_jv_cfg->sdp_raw_size; bta_jv_cb.p_sel_raw_data = 0; bta_jv_cb.uuid = uuid_list[0]; bta_jv_cb.sdp_active = BTA_JV_SDP_ACT_YES; uint32_t* rfcomm_slot_id_copy = (uint32_t*)osi_malloc(sizeof(uint32_t)); *rfcomm_slot_id_copy = rfcomm_slot_id; if (!SDP_ServiceSearchAttributeRequest2(bd_addr, p_bta_jv_cfg->p_sdp_db, bta_jv_start_discovery_cback, (void*)rfcomm_slot_id_copy)) { bta_jv_cb.sdp_active = BTA_JV_SDP_ACT_NONE; /* failed to start SDP. report the failure right away */ if (bta_jv_cb.p_dm_cback) { tBTA_JV bta_jv; bta_jv.status = status; bta_jv_cb.p_dm_cback(BTA_JV_DISCOVERY_COMP_EVT, &bta_jv, rfcomm_slot_id); } } /* else report the result when the cback is called */ } /* Create an SDP record with the given attributes */ void bta_jv_create_record(uint32_t rfcomm_slot_id) { tBTA_JV_CREATE_RECORD evt_data; evt_data.status = BTA_JV_SUCCESS; if (bta_jv_cb.p_dm_cback) { // callback immediately to create the sdp record in stack thread context tBTA_JV bta_jv; bta_jv.create_rec = evt_data; bta_jv_cb.p_dm_cback(BTA_JV_CREATE_RECORD_EVT, &bta_jv, rfcomm_slot_id); } } /* Delete an SDP record */ void bta_jv_delete_record(uint32_t handle) { if (handle) { /* this is a record created by btif layer*/ SDP_DeleteRecord(handle); } } /******************************************************************************* * * Function bta_jv_l2cap_client_cback * * Description handles the l2cap client events * * Returns void * ******************************************************************************/ static void bta_jv_l2cap_client_cback(uint16_t gap_handle, uint16_t event, tGAP_CB_DATA* data) { tBTA_JV_L2C_CB* p_cb = &bta_jv_cb.l2c_cb[gap_handle]; tBTA_JV evt_data; if (gap_handle >= BTA_JV_MAX_L2C_CONN && !p_cb->p_cback) return; VLOG(2) << __func__ << ": gap_handle=" << gap_handle << ", evt=" << loghex(event); evt_data.l2c_open.status = BTA_JV_SUCCESS; evt_data.l2c_open.handle = gap_handle; switch (event) { case GAP_EVT_CONN_OPENED: evt_data.l2c_open.rem_bda = *GAP_ConnGetRemoteAddr(gap_handle); evt_data.l2c_open.tx_mtu = GAP_ConnGetRemMtuSize(gap_handle); p_cb->state = BTA_JV_ST_CL_OPEN; p_cb->p_cback(BTA_JV_L2CAP_OPEN_EVT, &evt_data, p_cb->l2cap_socket_id); break; case GAP_EVT_CONN_CLOSED: p_cb->state = BTA_JV_ST_NONE; bta_jv_free_sec_id(&p_cb->sec_id); evt_data.l2c_close.async = true; p_cb->p_cback(BTA_JV_L2CAP_CLOSE_EVT, &evt_data, p_cb->l2cap_socket_id); p_cb->p_cback = NULL; break; case GAP_EVT_CONN_DATA_AVAIL: evt_data.data_ind.handle = gap_handle; /* Reset idle timer to avoid requesting sniff mode while receiving data */ bta_jv_pm_conn_busy(p_cb->p_pm_cb); p_cb->p_cback(BTA_JV_L2CAP_DATA_IND_EVT, &evt_data, p_cb->l2cap_socket_id); bta_jv_pm_conn_idle(p_cb->p_pm_cb); break; case GAP_EVT_TX_EMPTY: bta_jv_pm_conn_idle(p_cb->p_pm_cb); break; case GAP_EVT_CONN_CONGESTED: case GAP_EVT_CONN_UNCONGESTED: p_cb->cong = (event == GAP_EVT_CONN_CONGESTED) ? true : false; evt_data.l2c_cong.cong = p_cb->cong; p_cb->p_cback(BTA_JV_L2CAP_CONG_EVT, &evt_data, p_cb->l2cap_socket_id); break; default: break; } } /* makes an l2cap client connection */ void bta_jv_l2cap_connect(int32_t type, tBTA_SEC sec_mask, tBTA_JV_ROLE role, uint16_t remote_psm, uint16_t rx_mtu, const RawAddress& peer_bd_addr, std::unique_ptr cfg_param, std::unique_ptr ertm_info, tBTA_JV_L2CAP_CBACK* p_cback, uint32_t l2cap_socket_id) { uint16_t handle = GAP_INVALID_HANDLE; tL2CAP_CFG_INFO cfg; memset(&cfg, 0, sizeof(tL2CAP_CFG_INFO)); if (cfg_param) { cfg = *cfg_param; } /* We need to use this value for MTU to be able to handle cases where cfg is * not set in req. */ cfg.mtu_present = true; cfg.mtu = rx_mtu; uint8_t sec_id = bta_jv_alloc_sec_id(); tBTA_JV_L2CAP_CL_INIT evt_data; evt_data.sec_id = sec_id; evt_data.status = BTA_JV_FAILURE; if (sec_id) { /* PSM checking is not required for LE COC */ if ((type != BTA_JV_CONN_TYPE_L2CAP) || (bta_jv_check_psm(remote_psm))) /* allowed */ { uint16_t max_mps = 0xffff; // Let GAP_ConnOpen set the max_mps. handle = GAP_ConnOpen("", sec_id, 0, &peer_bd_addr, remote_psm, max_mps, &cfg, ertm_info.get(), sec_mask, bta_jv_l2cap_client_cback, type); if (handle != GAP_INVALID_HANDLE) { evt_data.status = BTA_JV_SUCCESS; } } } if (evt_data.status == BTA_JV_SUCCESS) { tBTA_JV_L2C_CB* p_cb; p_cb = &bta_jv_cb.l2c_cb[handle]; p_cb->handle = handle; p_cb->p_cback = p_cback; p_cb->l2cap_socket_id = l2cap_socket_id; p_cb->psm = 0; /* not a server */ p_cb->sec_id = sec_id; p_cb->state = BTA_JV_ST_CL_OPENING; } else { bta_jv_free_sec_id(&sec_id); } evt_data.handle = handle; if (p_cback) { tBTA_JV bta_jv; bta_jv.l2c_cl_init = evt_data; p_cback(BTA_JV_L2CAP_CL_INIT_EVT, &bta_jv, l2cap_socket_id); } } /** Close an L2CAP client connection */ void bta_jv_l2cap_close(uint32_t handle, tBTA_JV_L2C_CB* p_cb) { tBTA_JV_L2CAP_CLOSE evt_data; tBTA_JV_L2CAP_CBACK* p_cback = p_cb->p_cback; uint32_t l2cap_socket_id = p_cb->l2cap_socket_id; evt_data.handle = handle; evt_data.status = bta_jv_free_l2c_cb(p_cb); evt_data.async = false; if (p_cback) { tBTA_JV bta_jv; bta_jv.l2c_close = evt_data; p_cback(BTA_JV_L2CAP_CLOSE_EVT, &bta_jv, l2cap_socket_id); } } /******************************************************************************* * * Function bta_jv_l2cap_server_cback * * Description handles the l2cap server callback * * Returns void * ******************************************************************************/ static void bta_jv_l2cap_server_cback(uint16_t gap_handle, uint16_t event, tGAP_CB_DATA* data) { tBTA_JV_L2C_CB* p_cb = &bta_jv_cb.l2c_cb[gap_handle]; tBTA_JV evt_data; tBTA_JV_L2CAP_CBACK* p_cback; uint32_t socket_id; if (gap_handle >= BTA_JV_MAX_L2C_CONN && !p_cb->p_cback) return; VLOG(2) << __func__ << ": gap_handle=" << gap_handle << ", evt=" << loghex(event); evt_data.l2c_open.status = BTA_JV_SUCCESS; evt_data.l2c_open.handle = gap_handle; switch (event) { case GAP_EVT_CONN_OPENED: evt_data.l2c_open.rem_bda = *GAP_ConnGetRemoteAddr(gap_handle); evt_data.l2c_open.tx_mtu = GAP_ConnGetRemMtuSize(gap_handle); p_cb->state = BTA_JV_ST_SR_OPEN; p_cb->p_cback(BTA_JV_L2CAP_OPEN_EVT, &evt_data, p_cb->l2cap_socket_id); break; case GAP_EVT_CONN_CLOSED: evt_data.l2c_close.async = true; evt_data.l2c_close.handle = p_cb->handle; p_cback = p_cb->p_cback; socket_id = p_cb->l2cap_socket_id; evt_data.l2c_close.status = bta_jv_free_l2c_cb(p_cb); p_cback(BTA_JV_L2CAP_CLOSE_EVT, &evt_data, socket_id); break; case GAP_EVT_CONN_DATA_AVAIL: evt_data.data_ind.handle = gap_handle; /* Reset idle timer to avoid requesting sniff mode while receiving data */ bta_jv_pm_conn_busy(p_cb->p_pm_cb); p_cb->p_cback(BTA_JV_L2CAP_DATA_IND_EVT, &evt_data, p_cb->l2cap_socket_id); bta_jv_pm_conn_idle(p_cb->p_pm_cb); break; case GAP_EVT_TX_EMPTY: bta_jv_pm_conn_idle(p_cb->p_pm_cb); break; case GAP_EVT_CONN_CONGESTED: case GAP_EVT_CONN_UNCONGESTED: p_cb->cong = (event == GAP_EVT_CONN_CONGESTED) ? true : false; evt_data.l2c_cong.cong = p_cb->cong; p_cb->p_cback(BTA_JV_L2CAP_CONG_EVT, &evt_data, p_cb->l2cap_socket_id); break; default: break; } } /** starts an L2CAP server */ void bta_jv_l2cap_start_server(int32_t type, tBTA_SEC sec_mask, tBTA_JV_ROLE role, uint16_t local_psm, uint16_t rx_mtu, std::unique_ptr cfg_param, std::unique_ptr ertm_info, tBTA_JV_L2CAP_CBACK* p_cback, uint32_t l2cap_socket_id) { uint16_t handle; tBTA_JV_L2CAP_START evt_data; tL2CAP_CFG_INFO cfg; memset(&cfg, 0, sizeof(tL2CAP_CFG_INFO)); if (cfg_param) { cfg = *cfg_param; } // FIX: MTU=0 means not present if (rx_mtu > 0) { cfg.mtu_present = true; cfg.mtu = rx_mtu; } else { cfg.mtu_present = false; cfg.mtu = 0; } uint8_t sec_id = bta_jv_alloc_sec_id(); uint16_t max_mps = 0xffff; // Let GAP_ConnOpen set the max_mps. /* PSM checking is not required for LE COC */ if (0 == sec_id || ((type == BTA_JV_CONN_TYPE_L2CAP) && (!bta_jv_check_psm(local_psm))) || (handle = GAP_ConnOpen("JV L2CAP", sec_id, 1, nullptr, local_psm, max_mps, &cfg, ertm_info.get(), sec_mask, bta_jv_l2cap_server_cback, type)) == GAP_INVALID_HANDLE) { bta_jv_free_sec_id(&sec_id); evt_data.status = BTA_JV_FAILURE; } else { tBTA_JV_L2C_CB* p_cb = &bta_jv_cb.l2c_cb[handle]; evt_data.status = BTA_JV_SUCCESS; evt_data.handle = handle; evt_data.sec_id = sec_id; p_cb->p_cback = p_cback; p_cb->l2cap_socket_id = l2cap_socket_id; p_cb->handle = handle; p_cb->sec_id = sec_id; p_cb->state = BTA_JV_ST_SR_LISTEN; p_cb->psm = local_psm; } if (p_cback) { tBTA_JV bta_jv; bta_jv.l2c_start = evt_data; p_cback(BTA_JV_L2CAP_START_EVT, &bta_jv, l2cap_socket_id); } } /* stops an L2CAP server */ void bta_jv_l2cap_stop_server(uint16_t local_psm, uint32_t l2cap_socket_id) { for (int i = 0; i < BTA_JV_MAX_L2C_CONN; i++) { if (bta_jv_cb.l2c_cb[i].l2cap_socket_id == l2cap_socket_id) { tBTA_JV_L2C_CB* p_cb = &bta_jv_cb.l2c_cb[i]; tBTA_JV_L2CAP_CBACK* p_cback = p_cb->p_cback; tBTA_JV_L2CAP_CLOSE evt_data; evt_data.handle = p_cb->handle; evt_data.status = bta_jv_free_l2c_cb(p_cb); evt_data.async = false; if (p_cback) { tBTA_JV bta_jv; bta_jv.l2c_close = evt_data; p_cback(BTA_JV_L2CAP_CLOSE_EVT, &bta_jv, l2cap_socket_id); } break; } } } /* Write data to an L2CAP connection */ void bta_jv_l2cap_write(uint32_t handle, uint32_t req_id, BT_HDR* msg, uint32_t user_id, tBTA_JV_L2C_CB* p_cb) { /* As we check this callback exists before the tBTA_JV_API_L2CAP_WRITE can be * send through the API this check should not be needed. But the API is not * designed to be used (safely at least) in a multi-threaded scheduler, hence * if the peer device disconnects the l2cap link after the API is called, but * before this message is handled, the ->p_cback will be cleared at this * point. At first glanch this seems highly unlikely, but for all * obex-profiles with two channels connected - e.g. MAP, this happens around 1 * of 4 disconnects, as a disconnect on the server channel causes a disconnect * to be send on the client (notification) channel, but at the peer typically * disconnects both the OBEX disconnect request crosses the incoming l2cap * disconnect. If p_cback is cleared, we simply discard the data. RISK: The * caller must handle any cleanup based on another signal than * BTA_JV_L2CAP_WRITE_EVT, which is typically not possible, as the pointer to * the allocated buffer is stored in this message, and can therefore not be * freed, hence we have a mem-leak-by-design.*/ if (!p_cb->p_cback) { /* As this pointer is checked in the API function, this occurs only when the * channel is disconnected after the API function is called, but before the * message is handled. */ LOG(ERROR) << __func__ << ": p_cb->p_cback == NULL"; osi_free(msg); return; } tBTA_JV_L2CAP_WRITE evt_data; evt_data.status = BTA_JV_FAILURE; evt_data.handle = handle; evt_data.req_id = req_id; evt_data.cong = p_cb->cong; evt_data.len = msg->len; bta_jv_pm_conn_busy(p_cb->p_pm_cb); // TODO: this was set only for non-fixed channel packets. Is that needed ? msg->event = BT_EVT_TO_BTU_SP_DATA; if (evt_data.cong) { osi_free(msg); } else { if (GAP_ConnWriteData(handle, msg) == BT_PASS) evt_data.status = BTA_JV_SUCCESS; } tBTA_JV bta_jv; bta_jv.l2c_write = evt_data; p_cb->p_cback(BTA_JV_L2CAP_WRITE_EVT, &bta_jv, user_id); } /******************************************************************************* * * Function bta_jv_port_data_co_cback * * Description port data callback function of rfcomm * connections * * Returns void * ******************************************************************************/ static int bta_jv_port_data_co_cback(uint16_t port_handle, uint8_t* buf, uint16_t len, int type) { tBTA_JV_RFC_CB* p_cb = bta_jv_rfc_port_to_cb(port_handle); tBTA_JV_PCB* p_pcb = bta_jv_rfc_port_to_pcb(port_handle); VLOG(2) << __func__ << ": p_cb=" << p_cb << ", p_pcb=" << p_pcb << ", len=" << len << ", type=" << type; if (p_pcb != NULL) { switch (type) { case DATA_CO_CALLBACK_TYPE_INCOMING: return bta_co_rfc_data_incoming(p_pcb->rfcomm_slot_id, (BT_HDR*)buf); case DATA_CO_CALLBACK_TYPE_OUTGOING_SIZE: return bta_co_rfc_data_outgoing_size(p_pcb->rfcomm_slot_id, (int*)buf); case DATA_CO_CALLBACK_TYPE_OUTGOING: return bta_co_rfc_data_outgoing(p_pcb->rfcomm_slot_id, buf, len); default: LOG(ERROR) << __func__ << ": unknown callout type=" << type; break; } } return 0; } /******************************************************************************* * * Function bta_jv_port_mgmt_cl_cback * * Description callback for port mamangement function of rfcomm * client connections * * Returns void * ******************************************************************************/ static void bta_jv_port_mgmt_cl_cback(uint32_t code, uint16_t port_handle) { tBTA_JV_RFC_CB* p_cb = bta_jv_rfc_port_to_cb(port_handle); tBTA_JV_PCB* p_pcb = bta_jv_rfc_port_to_pcb(port_handle); tBTA_JV evt_data; RawAddress rem_bda = RawAddress::kEmpty; uint16_t lcid; tBTA_JV_RFCOMM_CBACK* p_cback; /* the callback function */ VLOG(2) << __func__ << ": code=" << code << ", port_handle=" << port_handle; if (NULL == p_cb || NULL == p_cb->p_cback) return; VLOG(2) << __func__ << ": code=" << code << ", port_handle=" << port_handle << ", handle=" << p_cb->handle; PORT_CheckConnection(port_handle, &rem_bda, &lcid); if (code == PORT_SUCCESS) { evt_data.rfc_open.handle = p_cb->handle; evt_data.rfc_open.status = BTA_JV_SUCCESS; evt_data.rfc_open.rem_bda = rem_bda; p_pcb->state = BTA_JV_ST_CL_OPEN; p_cb->p_cback(BTA_JV_RFCOMM_OPEN_EVT, &evt_data, p_pcb->rfcomm_slot_id); } else { evt_data.rfc_close.handle = p_cb->handle; evt_data.rfc_close.status = BTA_JV_FAILURE; evt_data.rfc_close.port_status = code; evt_data.rfc_close.async = true; if (p_pcb->state == BTA_JV_ST_CL_CLOSING) { evt_data.rfc_close.async = false; } // p_pcb->state = BTA_JV_ST_NONE; // p_pcb->cong = false; p_cback = p_cb->p_cback; p_cback(BTA_JV_RFCOMM_CLOSE_EVT, &evt_data, p_pcb->rfcomm_slot_id); // bta_jv_free_rfc_cb(p_cb, p_pcb); } } /******************************************************************************* * * Function bta_jv_port_event_cl_cback * * Description Callback for RFCOMM client port events * * Returns void * ******************************************************************************/ static void bta_jv_port_event_cl_cback(uint32_t code, uint16_t port_handle) { tBTA_JV_RFC_CB* p_cb = bta_jv_rfc_port_to_cb(port_handle); tBTA_JV_PCB* p_pcb = bta_jv_rfc_port_to_pcb(port_handle); tBTA_JV evt_data; VLOG(2) << __func__ << ": port_handle=" << port_handle; if (NULL == p_cb || NULL == p_cb->p_cback) return; VLOG(2) << __func__ << ": code=" << loghex(code) << ", port_handle=" << port_handle << ", handle=" << p_cb->handle; if (code & PORT_EV_RXCHAR) { evt_data.data_ind.handle = p_cb->handle; p_cb->p_cback(BTA_JV_RFCOMM_DATA_IND_EVT, &evt_data, p_pcb->rfcomm_slot_id); } if (code & PORT_EV_FC) { p_pcb->cong = (code & PORT_EV_FCS) ? false : true; evt_data.rfc_cong.cong = p_pcb->cong; evt_data.rfc_cong.handle = p_cb->handle; evt_data.rfc_cong.status = BTA_JV_SUCCESS; p_cb->p_cback(BTA_JV_RFCOMM_CONG_EVT, &evt_data, p_pcb->rfcomm_slot_id); } if (code & PORT_EV_TXEMPTY) { bta_jv_pm_conn_idle(p_pcb->p_pm_cb); } } /* Client initiates an RFCOMM connection */ void bta_jv_rfcomm_connect(tBTA_SEC sec_mask, uint8_t remote_scn, const RawAddress& peer_bd_addr, tBTA_JV_RFCOMM_CBACK* p_cback, uint32_t rfcomm_slot_id) { uint16_t handle = 0; uint32_t event_mask = BTA_JV_RFC_EV_MASK; tPORT_STATE port_state; tBTA_JV_RFCOMM_CL_INIT evt_data; memset(&evt_data, 0, sizeof(evt_data)); evt_data.status = BTA_JV_SUCCESS; if (evt_data.status == BTA_JV_SUCCESS && RFCOMM_CreateConnectionWithSecurity( UUID_SERVCLASS_SERIAL_PORT, remote_scn, false, BTA_JV_DEF_RFC_MTU, peer_bd_addr, &handle, bta_jv_port_mgmt_cl_cback, sec_mask) != PORT_SUCCESS) { LOG(ERROR) << __func__ << ": RFCOMM_CreateConnection failed"; evt_data.status = BTA_JV_FAILURE; } if (evt_data.status == BTA_JV_SUCCESS) { tBTA_JV_PCB* p_pcb; tBTA_JV_RFC_CB* p_cb = bta_jv_alloc_rfc_cb(handle, &p_pcb); if (p_cb) { p_cb->p_cback = p_cback; p_cb->scn = 0; p_pcb->state = BTA_JV_ST_CL_OPENING; p_pcb->rfcomm_slot_id = rfcomm_slot_id; evt_data.use_co = true; PORT_SetEventCallback(handle, bta_jv_port_event_cl_cback); PORT_SetEventMask(handle, event_mask); PORT_SetDataCOCallback(handle, bta_jv_port_data_co_cback); PORT_GetState(handle, &port_state); port_state.fc_type = (PORT_FC_CTS_ON_INPUT | PORT_FC_CTS_ON_OUTPUT); PORT_SetState(handle, &port_state); evt_data.handle = p_cb->handle; } else { evt_data.status = BTA_JV_FAILURE; LOG(ERROR) << __func__ << ": run out of rfc control block"; } } tBTA_JV bta_jv; bta_jv.rfc_cl_init = evt_data; p_cback(BTA_JV_RFCOMM_CL_INIT_EVT, &bta_jv, rfcomm_slot_id); if (bta_jv.rfc_cl_init.status == BTA_JV_FAILURE) { RFCOMM_ClearSecurityRecord(remote_scn); if (handle) RFCOMM_RemoveConnection(handle); } } static int find_rfc_pcb(uint32_t rfcomm_slot_id, tBTA_JV_RFC_CB** cb, tBTA_JV_PCB** pcb) { *cb = NULL; *pcb = NULL; int i; for (i = 0; i < MAX_RFC_PORTS; i++) { uint32_t rfc_handle = bta_jv_cb.port_cb[i].handle & BTA_JV_RFC_HDL_MASK; rfc_handle &= ~BTA_JV_RFCOMM_MASK; if (rfc_handle && bta_jv_cb.port_cb[i].rfcomm_slot_id == rfcomm_slot_id) { *pcb = &bta_jv_cb.port_cb[i]; *cb = &bta_jv_cb.rfc_cb[rfc_handle - 1]; VLOG(2) << __func__ << ": FOUND rfc_cb_handle=" << loghex(rfc_handle) << ", port.jv_handle=" << loghex((*pcb)->handle) << ", state=" << (*pcb)->state << ", rfc_cb->handle=" << loghex((*cb)->handle); return 1; } } VLOG(2) << __func__ << ": cannot find rfc_cb from user data:" << rfcomm_slot_id; return 0; } /* Close an RFCOMM connection */ void bta_jv_rfcomm_close(uint32_t handle, uint32_t rfcomm_slot_id) { if (!handle) { LOG(ERROR) << __func__ << ": rfc handle is null"; return; } VLOG(2) << __func__ << ": rfc handle=" << handle; tBTA_JV_RFC_CB* p_cb = NULL; tBTA_JV_PCB* p_pcb = NULL; if (!find_rfc_pcb(rfcomm_slot_id, &p_cb, &p_pcb)) return; bta_jv_free_rfc_cb(p_cb, p_pcb); } /******************************************************************************* * * Function bta_jv_port_mgmt_sr_cback * * Description callback for port mamangement function of rfcomm * server connections * * Returns void * ******************************************************************************/ static void bta_jv_port_mgmt_sr_cback(uint32_t code, uint16_t port_handle) { tBTA_JV_PCB* p_pcb = bta_jv_rfc_port_to_pcb(port_handle); tBTA_JV_RFC_CB* p_cb = bta_jv_rfc_port_to_cb(port_handle); tBTA_JV evt_data; RawAddress rem_bda = RawAddress::kEmpty; uint16_t lcid; VLOG(2) << __func__ << ": code=" << code << ", port_handle=" << port_handle; if (NULL == p_cb || NULL == p_cb->p_cback) { LOG(ERROR) << __func__ << ": p_cb=" << p_cb << ", p_cb->p_cback=" << (p_cb ? p_cb->p_cback : 0); return; } uint32_t rfcomm_slot_id = p_pcb->rfcomm_slot_id; VLOG(2) << __func__ << ": code=" << code << ", port_handle=" << loghex(port_handle) << ", handle=" << loghex(p_cb->handle) << ", p_pcb" << p_pcb << ", user=" << p_pcb->rfcomm_slot_id; int status = PORT_CheckConnection(port_handle, &rem_bda, &lcid); int failed = true; if (code == PORT_SUCCESS) { if (status != PORT_SUCCESS) { LOG(ERROR) << __func__ << ": PORT_CheckConnection returned " << status << ", although port is supposed to be connected"; } evt_data.rfc_srv_open.handle = p_pcb->handle; evt_data.rfc_srv_open.status = BTA_JV_SUCCESS; evt_data.rfc_srv_open.rem_bda = rem_bda; tBTA_JV_PCB* p_pcb_new_listen = bta_jv_add_rfc_port(p_cb, p_pcb); if (p_pcb_new_listen) { evt_data.rfc_srv_open.new_listen_handle = p_pcb_new_listen->handle; p_pcb_new_listen->rfcomm_slot_id = p_cb->p_cback(BTA_JV_RFCOMM_SRV_OPEN_EVT, &evt_data, rfcomm_slot_id); VLOG(2) << __func__ << ": curr_sess=" << p_cb->curr_sess << ", max_sess=" << p_cb->max_sess; failed = false; } else LOG(ERROR) << __func__ << ": failed to create new listen port"; } if (failed) { evt_data.rfc_close.handle = p_cb->handle; evt_data.rfc_close.status = BTA_JV_FAILURE; evt_data.rfc_close.async = true; evt_data.rfc_close.port_status = code; p_pcb->cong = false; tBTA_JV_RFCOMM_CBACK* p_cback = p_cb->p_cback; VLOG(2) << __func__ << ": PORT_CLOSED before BTA_JV_RFCOMM_CLOSE_EVT: curr_sess=" << p_cb->curr_sess << ", max_sess=" << p_cb->max_sess; if (BTA_JV_ST_SR_CLOSING == p_pcb->state) { evt_data.rfc_close.async = false; evt_data.rfc_close.status = BTA_JV_SUCCESS; } // p_pcb->state = BTA_JV_ST_NONE; p_cback(BTA_JV_RFCOMM_CLOSE_EVT, &evt_data, rfcomm_slot_id); // bta_jv_free_rfc_cb(p_cb, p_pcb); VLOG(2) << __func__ << ": PORT_CLOSED after BTA_JV_RFCOMM_CLOSE_EVT: curr_sess=" << p_cb->curr_sess << ", max_sess=" << p_cb->max_sess; } } /******************************************************************************* * * Function bta_jv_port_event_sr_cback * * Description Callback for RFCOMM server port events * * Returns void * ******************************************************************************/ static void bta_jv_port_event_sr_cback(uint32_t code, uint16_t port_handle) { tBTA_JV_PCB* p_pcb = bta_jv_rfc_port_to_pcb(port_handle); tBTA_JV_RFC_CB* p_cb = bta_jv_rfc_port_to_cb(port_handle); tBTA_JV evt_data; if (NULL == p_cb || NULL == p_cb->p_cback) { LOG(ERROR) << __func__ << ": p_cb=" << p_cb << ", p_cb->p_cback=" << (p_cb ? p_cb->p_cback : 0); return; } VLOG(2) << __func__ << ": code=" << loghex(code) << ", port_handle=" << port_handle << ", handle=" << p_cb->handle; uint32_t user_data = p_pcb->rfcomm_slot_id; if (code & PORT_EV_RXCHAR) { evt_data.data_ind.handle = p_cb->handle; p_cb->p_cback(BTA_JV_RFCOMM_DATA_IND_EVT, &evt_data, user_data); } if (code & PORT_EV_FC) { p_pcb->cong = (code & PORT_EV_FCS) ? false : true; evt_data.rfc_cong.cong = p_pcb->cong; evt_data.rfc_cong.handle = p_cb->handle; evt_data.rfc_cong.status = BTA_JV_SUCCESS; p_cb->p_cback(BTA_JV_RFCOMM_CONG_EVT, &evt_data, user_data); } if (code & PORT_EV_TXEMPTY) { bta_jv_pm_conn_idle(p_pcb->p_pm_cb); } } /******************************************************************************* * * Function bta_jv_add_rfc_port * * Description add a port for server when the existing posts is open * * Returns return a pointer to tBTA_JV_PCB just added * ******************************************************************************/ static tBTA_JV_PCB* bta_jv_add_rfc_port(tBTA_JV_RFC_CB* p_cb, tBTA_JV_PCB* p_pcb_open) { uint8_t used = 0, i, listen = 0; uint32_t si = 0; tPORT_STATE port_state; uint32_t event_mask = BTA_JV_RFC_EV_MASK; tBTA_JV_PCB* p_pcb = NULL; if (p_cb->max_sess > 1) { for (i = 0; i < p_cb->max_sess; i++) { if (p_cb->rfc_hdl[i] != 0) { p_pcb = &bta_jv_cb.port_cb[p_cb->rfc_hdl[i] - 1]; if (p_pcb->state == BTA_JV_ST_SR_LISTEN) { listen++; if (p_pcb_open == p_pcb) { VLOG(2) << __func__ << ": port_handle=" << p_pcb->port_handle << ", change the listen port to open state"; p_pcb->state = BTA_JV_ST_SR_OPEN; } else { LOG(ERROR) << __func__ << ": open pcb not matching listen one, count=" << listen << ", listen pcb handle=" << p_pcb->port_handle << ", open pcb=" << p_pcb_open->handle; return NULL; } } used++; } else if (si == 0) { si = i + 1; } } VLOG(2) << __func__ << ": max_sess=" << p_cb->max_sess << ", used=" << used << ", curr_sess=" << p_cb->curr_sess << ", listen=" << listen << ", si=" << si; if (used < p_cb->max_sess && listen == 1 && si) { si--; if (RFCOMM_CreateConnection(p_cb->sec_id, p_cb->scn, true, BTA_JV_DEF_RFC_MTU, RawAddress::kAny, &(p_cb->rfc_hdl[si]), bta_jv_port_mgmt_sr_cback) == PORT_SUCCESS) { p_cb->curr_sess++; p_pcb = &bta_jv_cb.port_cb[p_cb->rfc_hdl[si] - 1]; p_pcb->state = BTA_JV_ST_SR_LISTEN; p_pcb->port_handle = p_cb->rfc_hdl[si]; p_pcb->rfcomm_slot_id = p_pcb_open->rfcomm_slot_id; PORT_ClearKeepHandleFlag(p_pcb->port_handle); PORT_SetEventCallback(p_pcb->port_handle, bta_jv_port_event_sr_cback); PORT_SetDataCOCallback(p_pcb->port_handle, bta_jv_port_data_co_cback); PORT_SetEventMask(p_pcb->port_handle, event_mask); PORT_GetState(p_pcb->port_handle, &port_state); port_state.fc_type = (PORT_FC_CTS_ON_INPUT | PORT_FC_CTS_ON_OUTPUT); PORT_SetState(p_pcb->port_handle, &port_state); p_pcb->handle = BTA_JV_RFC_H_S_TO_HDL(p_cb->handle, si); VLOG(2) << __func__ << ": p_pcb->handle=" << loghex(p_pcb->handle) << ", curr_sess=" << p_cb->curr_sess; } else { LOG(ERROR) << __func__ << ": RFCOMM_CreateConnection failed"; return NULL; } } else { LOG(ERROR) << __func__ << ": cannot create new rfc listen port"; return NULL; } } VLOG(2) << __func__ << ": sec id in use=" << get_sec_id_used() << ", rfc_cb in use=" << get_rfc_cb_used(); return p_pcb; } /* waits for an RFCOMM client to connect */ void bta_jv_rfcomm_start_server(tBTA_SEC sec_mask, uint8_t local_scn, uint8_t max_session, tBTA_JV_RFCOMM_CBACK* p_cback, uint32_t rfcomm_slot_id) { uint16_t handle = 0; uint32_t event_mask = BTA_JV_RFC_EV_MASK; tPORT_STATE port_state; tBTA_JV_RFC_CB* p_cb = NULL; tBTA_JV_PCB* p_pcb; tBTA_JV_RFCOMM_START evt_data; memset(&evt_data, 0, sizeof(evt_data)); evt_data.status = BTA_JV_FAILURE; do { if (RFCOMM_CreateConnectionWithSecurity( 0, local_scn, true, BTA_JV_DEF_RFC_MTU, RawAddress::kAny, &handle, bta_jv_port_mgmt_sr_cback, sec_mask) != PORT_SUCCESS) { LOG(ERROR) << __func__ << ": RFCOMM_CreateConnection failed"; break; } p_cb = bta_jv_alloc_rfc_cb(handle, &p_pcb); if (!p_cb) { LOG(ERROR) << __func__ << ": run out of rfc control block"; break; } p_cb->max_sess = max_session; p_cb->p_cback = p_cback; p_cb->scn = local_scn; p_pcb->state = BTA_JV_ST_SR_LISTEN; p_pcb->rfcomm_slot_id = rfcomm_slot_id; evt_data.status = BTA_JV_SUCCESS; evt_data.handle = p_cb->handle; evt_data.use_co = true; PORT_ClearKeepHandleFlag(handle); PORT_SetEventCallback(handle, bta_jv_port_event_sr_cback); PORT_SetEventMask(handle, event_mask); PORT_GetState(handle, &port_state); port_state.fc_type = (PORT_FC_CTS_ON_INPUT | PORT_FC_CTS_ON_OUTPUT); PORT_SetState(handle, &port_state); } while (0); tBTA_JV bta_jv; bta_jv.rfc_start = evt_data; p_cback(BTA_JV_RFCOMM_START_EVT, &bta_jv, rfcomm_slot_id); if (bta_jv.rfc_start.status == BTA_JV_SUCCESS) { PORT_SetDataCOCallback(handle, bta_jv_port_data_co_cback); } else { RFCOMM_ClearSecurityRecord(local_scn); if (handle) RFCOMM_RemoveConnection(handle); } } /* stops an RFCOMM server */ void bta_jv_rfcomm_stop_server(uint32_t handle, uint32_t rfcomm_slot_id) { if (!handle) { LOG(ERROR) << __func__ << ": jv handle is null"; return; } VLOG(2) << __func__; tBTA_JV_RFC_CB* p_cb = NULL; tBTA_JV_PCB* p_pcb = NULL; if (!find_rfc_pcb(rfcomm_slot_id, &p_cb, &p_pcb)) return; VLOG(2) << __func__ << ": p_pcb=" << p_pcb << ", p_pcb->port_handle=" << p_pcb->port_handle; bta_jv_free_rfc_cb(p_cb, p_pcb); } /* write data to an RFCOMM connection */ void bta_jv_rfcomm_write(uint32_t handle, uint32_t req_id, tBTA_JV_RFC_CB* p_cb, tBTA_JV_PCB* p_pcb) { if (p_pcb->state == BTA_JV_ST_NONE) { LOG(ERROR) << __func__ << ": in state BTA_JV_ST_NONE - cannot write"; return; } tBTA_JV_RFCOMM_WRITE evt_data; evt_data.status = BTA_JV_FAILURE; evt_data.handle = handle; evt_data.req_id = req_id; evt_data.cong = p_pcb->cong; evt_data.len = 0; bta_jv_pm_conn_busy(p_pcb->p_pm_cb); if (!evt_data.cong && PORT_WriteDataCO(p_pcb->port_handle, &evt_data.len) == PORT_SUCCESS) { evt_data.status = BTA_JV_SUCCESS; } // Update congestion flag evt_data.cong = p_pcb->cong; if (!p_cb->p_cback) { LOG(ERROR) << __func__ << ": No JV callback set"; return; } tBTA_JV bta_jv; bta_jv.rfc_write = evt_data; p_cb->p_cback(BTA_JV_RFCOMM_WRITE_EVT, &bta_jv, p_pcb->rfcomm_slot_id); } /* Set or free power mode profile for a JV application */ void bta_jv_set_pm_profile(uint32_t handle, tBTA_JV_PM_ID app_id, tBTA_JV_CONN_STATE init_st) { tBTA_JV_STATUS status; tBTA_JV_PM_CB* p_cb; VLOG(2) << __func__ << " handle=" << loghex(handle) << ", app_id=" << app_id << ", init_st=" << +init_st; /* clear PM control block */ if (app_id == BTA_JV_PM_ID_CLEAR) { status = bta_jv_free_set_pm_profile_cb(handle); if (status != BTA_JV_SUCCESS) { LOG(WARNING) << __func__ << ": free pm cb failed: reason=" << +status; } } else /* set PM control block */ { p_cb = bta_jv_alloc_set_pm_profile_cb(handle, app_id); if (NULL != p_cb) bta_jv_pm_state_change(p_cb, init_st); else LOG(WARNING) << __func__ << ": failed"; } } /******************************************************************************* * * Function bta_jv_pm_conn_busy * * Description set pm connection busy state (input param safe) * * Params p_cb: pm control block of jv connection * * Returns void * ******************************************************************************/ static void bta_jv_pm_conn_busy(tBTA_JV_PM_CB* p_cb) { if ((NULL != p_cb) && (BTA_JV_PM_IDLE_ST == p_cb->state)) bta_jv_pm_state_change(p_cb, BTA_JV_CONN_BUSY); } /******************************************************************************* * * Function bta_jv_pm_conn_busy * * Description set pm connection busy state (input param safe) * * Params p_cb: pm control block of jv connection * * Returns void * ******************************************************************************/ static void bta_jv_pm_conn_idle(tBTA_JV_PM_CB* p_cb) { if ((NULL != p_cb) && (BTA_JV_PM_IDLE_ST != p_cb->state)) bta_jv_pm_state_change(p_cb, BTA_JV_CONN_IDLE); } /******************************************************************************* * * Function bta_jv_pm_state_change * * Description Notify power manager there is state change * * Params p_cb: must be NONE NULL * * Returns void * ******************************************************************************/ static void bta_jv_pm_state_change(tBTA_JV_PM_CB* p_cb, const tBTA_JV_CONN_STATE state) { VLOG(2) << __func__ << ": p_cb=" << p_cb << ", handle=" << loghex(p_cb->handle) << ", busy/idle_state=" << p_cb->state << ", app_id=" << p_cb->app_id << ", conn_state=" << state; switch (state) { case BTA_JV_CONN_OPEN: bta_sys_conn_open(BTA_ID_JV, p_cb->app_id, p_cb->peer_bd_addr); break; case BTA_JV_CONN_CLOSE: bta_sys_conn_close(BTA_ID_JV, p_cb->app_id, p_cb->peer_bd_addr); break; case BTA_JV_APP_OPEN: bta_sys_app_open(BTA_ID_JV, p_cb->app_id, p_cb->peer_bd_addr); break; case BTA_JV_APP_CLOSE: bta_sys_app_close(BTA_ID_JV, p_cb->app_id, p_cb->peer_bd_addr); break; case BTA_JV_SCO_OPEN: bta_sys_sco_open(BTA_ID_JV, p_cb->app_id, p_cb->peer_bd_addr); break; case BTA_JV_SCO_CLOSE: bta_sys_sco_close(BTA_ID_JV, p_cb->app_id, p_cb->peer_bd_addr); break; case BTA_JV_CONN_IDLE: p_cb->state = BTA_JV_PM_IDLE_ST; bta_sys_idle(BTA_ID_JV, p_cb->app_id, p_cb->peer_bd_addr); break; case BTA_JV_CONN_BUSY: p_cb->state = BTA_JV_PM_BUSY_ST; bta_sys_busy(BTA_ID_JV, p_cb->app_id, p_cb->peer_bd_addr); break; default: LOG(WARNING) << __func__ << ": Invalid state=" << +state; break; } } /******************************************************************************/