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Bluetooth: L2CAP: separate BR/EDR and LE internal headers
Extract BR/EDR definitions from `l2cap_internal.c` into its own headers: one for the interface with l2cap.c and one for the rest of the BR/EDR stack. Signed-off-by: Jonathan Rico <[email protected]>
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Original file line number | Diff line number | Diff line change |
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/* l2cap_br.c - L2CAP BREDR internal interface | ||
* | ||
* This is the only interface between l2cap.c and l2cap_br.c. | ||
* | ||
* Copyright (c) 2024 Nordic Semiconductor ASA | ||
* | ||
* SPDX-License-Identifier: Apache-2.0 | ||
*/ | ||
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/* Initialize BR/EDR L2CAP signal layer */ | ||
void bt_l2cap_br_init(void); | ||
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/* Notify BR/EDR L2CAP channels about established new ACL connection */ | ||
void bt_l2cap_br_connected(struct bt_conn *conn); | ||
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/* Lookup BR/EDR L2CAP channel by Receiver CID */ | ||
struct bt_l2cap_chan *bt_l2cap_br_lookup_rx_cid(struct bt_conn *conn, | ||
uint16_t cid); | ||
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/* Disconnects dynamic channel */ | ||
int bt_l2cap_br_chan_disconnect(struct bt_l2cap_chan *chan); | ||
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/* Make connection to peer psm server */ | ||
int bt_l2cap_br_chan_connect(struct bt_conn *conn, struct bt_l2cap_chan *chan, | ||
uint16_t psm); | ||
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/* Send packet data to connected peer */ | ||
int bt_l2cap_br_chan_send(struct bt_l2cap_chan *chan, struct net_buf *buf); | ||
int bt_l2cap_br_chan_send_cb(struct bt_l2cap_chan *chan, struct net_buf *buf, bt_conn_tx_cb_t cb, | ||
void *user_data); | ||
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/* | ||
* Handle security level changed on link passing HCI status of performed | ||
* security procedure. | ||
*/ | ||
void l2cap_br_encrypt_change(struct bt_conn *conn, uint8_t hci_status); | ||
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/* Handle received data */ | ||
void bt_l2cap_br_recv(struct bt_conn *conn, struct net_buf *buf); |
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/** @file | ||
* @brief Internal APIs for Bluetooth L2CAP BR/EDR handling. | ||
*/ | ||
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/* | ||
* Copyright (c) 2015-2016 Intel Corporation | ||
* | ||
* SPDX-License-Identifier: Apache-2.0 | ||
*/ | ||
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#include <zephyr/bluetooth/l2cap.h> | ||
#include <zephyr/sys/iterable_sections.h> | ||
#include "l2cap_br_interface.h" | ||
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#define BT_L2CAP_CID_BR_SIG 0x0001 | ||
#define BT_L2CAP_CID_BR_SMP 0x0007 | ||
#define BT_L2CAP_PSM_RFCOMM 0x0003 | ||
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struct bt_l2cap_hdr { | ||
uint16_t len; | ||
uint16_t cid; | ||
} __packed; | ||
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struct bt_l2cap_sig_hdr { | ||
uint8_t code; | ||
uint8_t ident; | ||
uint16_t len; | ||
} __packed; | ||
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#define BT_L2CAP_REJ_NOT_UNDERSTOOD 0x0000 | ||
#define BT_L2CAP_REJ_MTU_EXCEEDED 0x0001 | ||
#define BT_L2CAP_REJ_INVALID_CID 0x0002 | ||
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#define BT_L2CAP_CMD_REJECT 0x01 | ||
struct bt_l2cap_cmd_reject { | ||
uint16_t reason; | ||
uint8_t data[0]; | ||
} __packed; | ||
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struct bt_l2cap_cmd_reject_cid_data { | ||
uint16_t scid; | ||
uint16_t dcid; | ||
} __packed; | ||
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#define BT_L2CAP_CONN_REQ 0x02 | ||
struct bt_l2cap_conn_req { | ||
uint16_t psm; | ||
uint16_t scid; | ||
} __packed; | ||
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/* command statuses in response */ | ||
#define BT_L2CAP_CS_NO_INFO 0x0000 | ||
#define BT_L2CAP_CS_AUTHEN_PEND 0x0001 | ||
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/* valid results in conn response on BR/EDR */ | ||
#define BT_L2CAP_BR_SUCCESS 0x0000 | ||
#define BT_L2CAP_BR_PENDING 0x0001 | ||
#define BT_L2CAP_BR_ERR_PSM_NOT_SUPP 0x0002 | ||
#define BT_L2CAP_BR_ERR_SEC_BLOCK 0x0003 | ||
#define BT_L2CAP_BR_ERR_NO_RESOURCES 0x0004 | ||
#define BT_L2CAP_BR_ERR_INVALID_SCID 0x0006 | ||
#define BT_L2CAP_BR_ERR_SCID_IN_USE 0x0007 | ||
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#define BT_L2CAP_CONN_RSP 0x03 | ||
struct bt_l2cap_conn_rsp { | ||
uint16_t dcid; | ||
uint16_t scid; | ||
uint16_t result; | ||
uint16_t status; | ||
} __packed; | ||
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#define BT_L2CAP_CONF_SUCCESS 0x0000 | ||
#define BT_L2CAP_CONF_UNACCEPT 0x0001 | ||
#define BT_L2CAP_CONF_REJECT 0x0002 | ||
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#define BT_L2CAP_CONF_REQ 0x04 | ||
struct bt_l2cap_conf_req { | ||
uint16_t dcid; | ||
uint16_t flags; | ||
uint8_t data[0]; | ||
} __packed; | ||
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#define BT_L2CAP_CONF_RSP 0x05 | ||
struct bt_l2cap_conf_rsp { | ||
uint16_t scid; | ||
uint16_t flags; | ||
uint16_t result; | ||
uint8_t data[0]; | ||
} __packed; | ||
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/* Option type used by MTU config request data */ | ||
#define BT_L2CAP_CONF_OPT_MTU 0x01 | ||
/* Options bits selecting most significant bit (hint) in type field */ | ||
#define BT_L2CAP_CONF_HINT 0x80 | ||
#define BT_L2CAP_CONF_MASK 0x7f | ||
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struct bt_l2cap_conf_opt { | ||
uint8_t type; | ||
uint8_t len; | ||
uint8_t data[0]; | ||
} __packed; | ||
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#define BT_L2CAP_DISCONN_REQ 0x06 | ||
struct bt_l2cap_disconn_req { | ||
uint16_t dcid; | ||
uint16_t scid; | ||
} __packed; | ||
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#define BT_L2CAP_DISCONN_RSP 0x07 | ||
struct bt_l2cap_disconn_rsp { | ||
uint16_t dcid; | ||
uint16_t scid; | ||
} __packed; | ||
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#define BT_L2CAP_INFO_FEAT_MASK 0x0002 | ||
#define BT_L2CAP_INFO_FIXED_CHAN 0x0003 | ||
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#define BT_L2CAP_INFO_REQ 0x0a | ||
struct bt_l2cap_info_req { | ||
uint16_t type; | ||
} __packed; | ||
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/* info result */ | ||
#define BT_L2CAP_INFO_SUCCESS 0x0000 | ||
#define BT_L2CAP_INFO_NOTSUPP 0x0001 | ||
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#define BT_L2CAP_INFO_RSP 0x0b | ||
struct bt_l2cap_info_rsp { | ||
uint16_t type; | ||
uint16_t result; | ||
uint8_t data[0]; | ||
} __packed; | ||
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/* Need a name different than bt_l2cap_fixed_chan for a different section */ | ||
struct bt_l2cap_br_fixed_chan { | ||
uint16_t cid; | ||
int (*accept)(struct bt_conn *conn, struct bt_l2cap_chan **chan); | ||
}; | ||
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#define BT_L2CAP_BR_CHANNEL_DEFINE(_name, _cid, _accept) \ | ||
const STRUCT_SECTION_ITERABLE(bt_l2cap_br_fixed_chan, _name) = { \ | ||
.cid = _cid, \ | ||
.accept = _accept, \ | ||
} | ||
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#define BR_CHAN(_ch) CONTAINER_OF(_ch, struct bt_l2cap_br_chan, chan) | ||
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/* Add channel to the connection */ | ||
void bt_l2cap_chan_add(struct bt_conn *conn, struct bt_l2cap_chan *chan, | ||
bt_l2cap_chan_destroy_t destroy); | ||
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/* Remove channel from the connection */ | ||
void bt_l2cap_chan_remove(struct bt_conn *conn, struct bt_l2cap_chan *chan); | ||
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/* Delete channel */ | ||
void bt_l2cap_chan_del(struct bt_l2cap_chan *chan); | ||
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const char *bt_l2cap_chan_state_str(bt_l2cap_chan_state_t state); | ||
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#if defined(CONFIG_BT_L2CAP_LOG_LEVEL_DBG) | ||
void bt_l2cap_chan_set_state_debug(struct bt_l2cap_chan *chan, | ||
bt_l2cap_chan_state_t state, | ||
const char *func, int line); | ||
#define bt_l2cap_chan_set_state(_chan, _state) \ | ||
bt_l2cap_chan_set_state_debug(_chan, _state, __func__, __LINE__) | ||
#else | ||
void bt_l2cap_chan_set_state(struct bt_l2cap_chan *chan, | ||
bt_l2cap_chan_state_t state); | ||
#endif /* CONFIG_BT_L2CAP_LOG_LEVEL_DBG */ | ||
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/* Prepare an L2CAP PDU to be sent over a connection */ | ||
struct net_buf *bt_l2cap_create_pdu_timeout(struct net_buf_pool *pool, | ||
size_t reserve, | ||
k_timeout_t timeout); | ||
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#define bt_l2cap_create_pdu(_pool, _reserve) \ | ||
bt_l2cap_create_pdu_timeout(_pool, _reserve, K_FOREVER) |
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