| /* |
| * Copyright 2019 The Android Open Source Project |
| * |
| * 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. |
| */ |
| |
| #pragma once |
| |
| #include <set> |
| #include <unordered_map> |
| #include <vector> |
| |
| #include "stack/include/bt_hdr.h" |
| #include "stack/include/l2c_api.h" |
| #include "types/hci_role.h" |
| #include "types/raw_address.h" |
| |
| namespace bluetooth { |
| namespace shim { |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_Register |
| * |
| * Description Other layers call this function to register for L2CAP |
| * services. |
| * |
| * Returns PSM to use or zero if error. Typically, the PSM returned |
| * is the same as was passed in, but for an outgoing-only |
| * connection to a dynamic PSM, a "virtual" PSM is returned |
| * and should be used in the calls to L2CA_ConnectReq() and |
| * BTM_SetSecurityLevel(). |
| * |
| ******************************************************************************/ |
| uint16_t L2CA_Register(uint16_t psm, const tL2CAP_APPL_INFO& p_cb_info, |
| bool enable_snoop, tL2CAP_ERTM_INFO* p_ertm_info, |
| uint16_t my_mtu, uint16_t required_remote_mtu, |
| uint16_t sec_level); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_Deregister |
| * |
| * Description Other layers call this function to deregister for L2CAP |
| * services. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void L2CA_Deregister(uint16_t psm); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_AllocateLePSM |
| * |
| * Description Other layers call this function to find an unused LE PSM for |
| * L2CAP services. |
| * |
| * Returns LE_PSM to use if success. Otherwise returns 0. |
| * |
| ******************************************************************************/ |
| uint16_t L2CA_AllocateLePSM(void); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_FreeLePSM |
| * |
| * Description Free an assigned LE PSM. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void L2CA_FreeLePSM(uint16_t psm); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_ConnectReq |
| * |
| * Description Higher layers call this function to create an L2CAP |
| * connection. |
| * Note that the connection is not established at this time, |
| * but connection establishment gets started. The callback |
| * will be invoked when connection establishes or fails. |
| * |
| * Returns the CID of the connection, or 0 if it failed to start |
| * |
| ******************************************************************************/ |
| uint16_t L2CA_ConnectReq(uint16_t psm, const RawAddress& p_bd_addr); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_RegisterLECoc |
| * |
| * Description Other layers call this function to register for L2CAP |
| * Connection Oriented Channel. |
| * |
| * Returns PSM to use or zero if error. Typically, the PSM returned |
| * is the same as was passed in, but for an outgoing-only |
| * connection to a dynamic PSM, a "virtual" PSM is returned |
| * and should be used in the calls to L2CA_ConnectLECocReq() |
| * and BTM_SetSecurityLevel(). |
| * |
| ******************************************************************************/ |
| uint16_t L2CA_RegisterLECoc(uint16_t psm, const tL2CAP_APPL_INFO& p_cb_info, |
| uint16_t sec_level, tL2CAP_LE_CFG_INFO cfg); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_DeregisterLECoc |
| * |
| * Description Other layers call this function to deregister for L2CAP |
| * Connection Oriented Channel. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void L2CA_DeregisterLECoc(uint16_t psm); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_ConnectLECocReq |
| * |
| * Description Higher layers call this function to create an L2CAP LE COC. |
| * Note that the connection is not established at this time, |
| * but connection establishment gets started. The callback |
| * will be invoked when connection establishes or fails. |
| * |
| * Returns the CID of the connection, or 0 if it failed to start |
| * |
| ******************************************************************************/ |
| uint16_t L2CA_ConnectLECocReq(uint16_t psm, const RawAddress& p_bd_addr, |
| tL2CAP_LE_CFG_INFO* p_cfg); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_GetPeerLECocConfig |
| * |
| * Description Get peers configuration for LE Connection Oriented Channel. |
| * |
| * Return value: true if peer is connected |
| * |
| ******************************************************************************/ |
| bool L2CA_GetPeerLECocConfig(uint16_t lcid, tL2CAP_LE_CFG_INFO* peer_cfg); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_ReconfigCreditBasedConnsReq |
| * |
| * Description Start reconfigure procedure on Credit Based Connection Oriented |
| * Channels. |
| * |
| * Return value: true if peer is connected |
| * |
| ******************************************************************************/ |
| |
| bool L2CA_ReconfigCreditBasedConnsReq(const RawAddress& bd_addr, |
| std::vector<uint16_t>& lcids, |
| tL2CAP_LE_CFG_INFO* p_cfg); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_ConnectCreditBasedReq |
| * |
| * Description With this function L2CAP will initiate setup of up to 5 credit |
| * based connections for given psm using provided configuration. |
| * L2CAP will notify user on the connection result, by calling |
| * pL2CA_CreditBasedConnectCfm_Cb for each cid with a result. |
| * |
| * Return value: vector of allocated local cids for the connection |
| * |
| ******************************************************************************/ |
| |
| extern std::vector<uint16_t> L2CA_ConnectCreditBasedReq( |
| uint16_t psm, const RawAddress& p_bd_addr, tL2CAP_LE_CFG_INFO* p_cfg); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_ConnectCreditBasedRsp |
| * |
| * Description Response for the pL2CA_CreditBasedConnectInd_Cb which is the |
| * indication for peer requesting credit based connection. |
| * |
| * Return value: true if peer is connected |
| * |
| ******************************************************************************/ |
| |
| extern bool L2CA_ConnectCreditBasedRsp(const RawAddress& p_bd_addr, uint8_t id, |
| std::vector<uint16_t>& accepted_lcids, |
| uint16_t result, |
| tL2CAP_LE_CFG_INFO* p_cfg); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_DisconnectReq |
| * |
| * Description Higher layers call this function to disconnect a channel. |
| * |
| * Returns true if disconnect sent, else false |
| * |
| ******************************************************************************/ |
| bool L2CA_DisconnectReq(uint16_t cid); |
| |
| bool L2CA_DisconnectLECocReq(uint16_t cid); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_DataWrite |
| * |
| * Description Higher layers call this function to write data. |
| * |
| * Returns L2CAP_DW_SUCCESS, if data accepted, else false |
| * L2CAP_DW_CONGESTED, if data accepted and the channel is |
| * congested |
| * L2CAP_DW_FAILED, if error |
| * |
| ******************************************************************************/ |
| uint8_t L2CA_DataWrite(uint16_t cid, BT_HDR* p_data); |
| |
| uint8_t L2CA_LECocDataWrite(uint16_t cid, BT_HDR* p_data); |
| |
| // Given a local channel identifier, |lcid|, this function returns the bound |
| // remote channel identifier, |rcid|. If |
| // |lcid| is not known or is invalid, this function returns false and does not |
| // modify the value pointed at by |rcid|. |rcid| may be NULL. |
| bool L2CA_GetRemoteCid(uint16_t lcid, uint16_t* rcid); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_SetIdleTimeoutByBdAddr |
| * |
| * Description Higher layers call this function to set the idle timeout for |
| * a connection. The "idle timeout" is the amount of time that |
| * a connection can remain up with no L2CAP channels on it. |
| * A timeout of zero means that the connection will be torn |
| * down immediately when the last channel is removed. |
| * A timeout of 0xFFFF means no timeout. Values are in seconds. |
| * A bd_addr is the remote BD address. If bd_addr = |
| * RawAddress::kAny, then the idle timeouts for all active |
| * l2cap links will be changed. |
| * |
| * Returns true if command succeeded, false if failed |
| * |
| * NOTE This timeout applies to all logical channels active on the |
| * ACL link. |
| ******************************************************************************/ |
| bool L2CA_SetIdleTimeoutByBdAddr(const RawAddress& bd_addr, uint16_t timeout, |
| tBT_TRANSPORT transport); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_SetTraceLevel |
| * |
| * Description This function sets the trace level for L2CAP. If called with |
| * a value of 0xFF, it simply reads the current trace level. |
| * |
| * Returns the new (current) trace level |
| * |
| ******************************************************************************/ |
| uint8_t L2CA_SetTraceLevel(uint8_t trace_level); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_FlushChannel |
| * |
| * Description This function flushes none, some or all buffers queued up |
| * for xmission for a particular CID. If called with |
| * L2CAP_FLUSH_CHANS_GET (0), it simply returns the number |
| * of buffers queued for that CID L2CAP_FLUSH_CHANS_ALL (0xffff) |
| * flushes all buffers. All other values specifies the maximum |
| * buffers to flush. |
| * |
| * Returns Number of buffers left queued for that CID |
| * |
| ******************************************************************************/ |
| uint16_t L2CA_FlushChannel(uint16_t lcid, uint16_t num_to_flush); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_SetAclPriority |
| * |
| * Description Sets the transmission priority for an ACL channel. |
| * (For initial implementation only two values are valid. |
| * L2CAP_PRIORITY_NORMAL and L2CAP_PRIORITY_HIGH). |
| * |
| * Returns true if a valid channel, else false |
| * |
| ******************************************************************************/ |
| bool L2CA_SetAclPriority(const RawAddress& bd_addr, tL2CAP_PRIORITY priority); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_SetTxPriority |
| * |
| * Description Sets the transmission priority for a channel. (FCR Mode) |
| * |
| * Returns true if a valid channel, else false |
| * |
| ******************************************************************************/ |
| bool L2CA_SetTxPriority(uint16_t cid, tL2CAP_CHNL_PRIORITY priority); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_SetChnlFlushability |
| * |
| * Description Higher layers call this function to set a channels |
| * flushability flags |
| * |
| * Returns true if CID found, else false |
| * |
| ******************************************************************************/ |
| bool L2CA_SetChnlFlushability(uint16_t cid, bool is_flushable); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_GetPeerFeatures |
| * |
| * Description Get a peers features and fixed channel map |
| * |
| * Parameters: BD address of the peer |
| * Pointers to features and channel mask storage area |
| * |
| * Return value: true if peer is connected |
| * |
| ******************************************************************************/ |
| bool L2CA_GetPeerFeatures(const RawAddress& bd_addr, uint32_t* p_ext_feat, |
| uint8_t* p_chnl_mask); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_RegisterFixedChannel |
| * |
| * Description Register a fixed channel. |
| * |
| * Parameters: Fixed Channel # |
| * Channel Callbacks and config |
| * |
| * Return value: true if registered OK |
| * |
| ******************************************************************************/ |
| bool L2CA_RegisterFixedChannel(uint16_t fixed_cid, |
| tL2CAP_FIXED_CHNL_REG* p_freg); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_ConnectFixedChnl |
| * |
| * Description Connect an fixed signalling channel to a remote device. |
| * |
| * Parameters: Fixed CID |
| * BD Address of remote |
| * |
| * Return value: true if connection started |
| * |
| ******************************************************************************/ |
| bool L2CA_ConnectFixedChnl(uint16_t fixed_cid, const RawAddress& bd_addr); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_SendFixedChnlData |
| * |
| * Description Write data on a fixed signalling channel. |
| * |
| * Parameters: Fixed CID |
| * BD Address of remote |
| * Pointer to buffer of type BT_HDR |
| * |
| * Return value L2CAP_DW_SUCCESS, if data accepted |
| * L2CAP_DW_FAILED, if error |
| * |
| ******************************************************************************/ |
| uint16_t L2CA_SendFixedChnlData(uint16_t fixed_cid, const RawAddress& rem_bda, |
| BT_HDR* p_buf); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_RemoveFixedChnl |
| * |
| * Description Remove a fixed channel to a remote device. |
| * |
| * Parameters: Fixed CID |
| * BD Address of remote |
| * Idle timeout to use (or 0xFFFF if don't care) |
| * |
| * Return value: true if channel removed |
| * |
| ******************************************************************************/ |
| bool L2CA_RemoveFixedChnl(uint16_t fixed_cid, const RawAddress& rem_bda); |
| |
| uint16_t L2CA_GetLeHandle(const RawAddress& rem_bda); |
| hci_role_t L2CA_GetBleConnRole(const RawAddress& bd_addr); |
| |
| void L2CA_LeConnectionUpdate(const RawAddress& rem_bda, uint16_t min_int, |
| uint16_t max_int, uint16_t latency, |
| uint16_t timeout, uint16_t min_ce_len, |
| uint16_t max_ce_len); |
| |
| // When GATT discovery is in progress, use the minimal connection interval, and |
| // reject remote connection updates, until done. |
| bool L2CA_EnableUpdateBleConnParams(const RawAddress& rem_bda, bool enable); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_SetLeGattTimeout |
| * |
| * Description Higher layers call this function to set the idle timeout for |
| * a fixed channel. The "idle timeout" is the amount of time |
| * that a connection can remain up with no L2CAP channels on |
| * it. A timeout of zero means that the connection will be torn |
| * down immediately when the last channel is removed. |
| * A timeout of 0xFFFF means no timeout. Values are in seconds. |
| * A bd_addr is the remote BD address. If bd_addr = |
| * RawAddress::kAny, then the idle timeouts for all active |
| * l2cap links will be changed. |
| * |
| * Returns true if command succeeded, false if failed |
| * |
| ******************************************************************************/ |
| bool L2CA_SetLeGattTimeout(const RawAddress& rem_bda, uint16_t idle_tout); |
| |
| bool L2CA_UpdateBleConnParams(const RawAddress& rem_bda, uint16_t min_int, |
| uint16_t max_int, uint16_t latency, |
| uint16_t timeout, uint16_t min_ce_len, |
| uint16_t max_ce_len); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_EnableUpdateBleConnParams |
| * |
| * Description Update BLE connection parameters. |
| * |
| * Parameters: BD Address of remote |
| * enable flag |
| * |
| * Return value: true if update started |
| * |
| ******************************************************************************/ |
| bool L2CA_EnableUpdateBleConnParams(const RawAddress& rem_bda, bool enable); |
| |
| /******************************************************************************* |
| * |
| * Function L2CA_GetBleConnRole |
| * |
| * Description This function returns the connection role. |
| * |
| * Returns link role. |
| * |
| ******************************************************************************/ |
| hci_role_t L2CA_GetBleConnRole(const RawAddress& bd_addr); |
| |
| /** |
| * Check whether an ACL or LE link to the remote device is established |
| */ |
| bool L2CA_IsLinkEstablished(const RawAddress& bd_addr, tBT_TRANSPORT transport); |
| |
| void L2CA_ConnectForSecurity(const RawAddress& bd_addr); |
| |
| // Set bonding state to acquire/release link refcount |
| void L2CA_SetBondingState(const RawAddress& p_bd_addr, bool is_bonding); |
| |
| // Indicated by shim stack manager that GD L2cap is enabled but Security is not |
| void L2CA_UseLegacySecurityModule(); |
| |
| void L2CA_SwitchRoleToCentral(const RawAddress& addr); |
| |
| bool L2CA_ReadRemoteVersion(const RawAddress& addr, uint8_t* lmp_version, |
| uint16_t* manufacturer, uint16_t* lmp_sub_version); |
| |
| uint8_t* L2CA_ReadRemoteFeatures(const RawAddress& addr); |
| |
| void L2CA_DisconnectLink(const RawAddress& remote); |
| |
| uint16_t L2CA_GetNumLinks(); |
| |
| bool L2CA_IsLeLink(uint16_t acl_handle); |
| |
| void L2CA_ReadConnectionAddr(const RawAddress& pseudo_addr, |
| RawAddress& conn_addr, uint8_t* p_addr_type); |
| |
| bool L2CA_ReadRemoteConnectionAddr(const RawAddress& pseudo_addr, |
| RawAddress& conn_addr, uint8_t* p_addr_type); |
| |
| } // namespace shim |
| } // namespace bluetooth |
