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-rw-r--r--include/net/bluetooth/bluetooth.h430
1 files changed, 379 insertions, 51 deletions
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 10eb9b389014..d46ed9011ee5 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -1,6 +1,7 @@
/*
BlueZ - Bluetooth protocol stack for Linux
Copyright (C) 2000-2001 Qualcomm Incorporated
+ Copyright 2023 NXP
Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
@@ -28,6 +29,10 @@
#include <linux/poll.h>
#include <net/sock.h>
#include <linux/seq_file.h>
+#include <linux/ethtool.h>
+
+#define BT_SUBSYS_VERSION 2
+#define BT_SUBSYS_REVISION 22
#ifndef AF_BLUETOOTH
#define AF_BLUETOOTH 31
@@ -38,6 +43,8 @@
#define BLUETOOTH_VER_1_1 1
#define BLUETOOTH_VER_1_2 2
#define BLUETOOTH_VER_2_0 3
+#define BLUETOOTH_VER_2_1 4
+#define BLUETOOTH_VER_4_0 6
/* Reserv for core and drivers use */
#define BT_SKB_RESERVE 8
@@ -50,6 +57,8 @@
#define BTPROTO_CMTP 5
#define BTPROTO_HIDP 6
#define BTPROTO_AVDTP 7
+#define BTPROTO_ISO 8
+#define BTPROTO_LAST BTPROTO_ISO
#define SOL_HCI 0
#define SOL_L2CAP 6
@@ -65,6 +74,7 @@ struct bt_security {
#define BT_SECURITY_LOW 1
#define BT_SECURITY_MEDIUM 2
#define BT_SECURITY_HIGH 3
+#define BT_SECURITY_FIPS 4
#define BT_DEFER_SETUP 7
@@ -107,17 +117,185 @@ struct bt_power {
*/
#define BT_CHANNEL_POLICY_AMP_PREFERRED 2
+#define BT_VOICE 11
+struct bt_voice {
+ __u16 setting;
+};
+
+#define BT_VOICE_TRANSPARENT 0x0003
+#define BT_VOICE_CVSD_16BIT 0x0060
+#define BT_VOICE_TRANSPARENT_16BIT 0x0063
+
+#define BT_SNDMTU 12
+#define BT_RCVMTU 13
+#define BT_PHY 14
+
+#define BT_PHY_BR_1M_1SLOT 0x00000001
+#define BT_PHY_BR_1M_3SLOT 0x00000002
+#define BT_PHY_BR_1M_5SLOT 0x00000004
+#define BT_PHY_EDR_2M_1SLOT 0x00000008
+#define BT_PHY_EDR_2M_3SLOT 0x00000010
+#define BT_PHY_EDR_2M_5SLOT 0x00000020
+#define BT_PHY_EDR_3M_1SLOT 0x00000040
+#define BT_PHY_EDR_3M_3SLOT 0x00000080
+#define BT_PHY_EDR_3M_5SLOT 0x00000100
+#define BT_PHY_LE_1M_TX 0x00000200
+#define BT_PHY_LE_1M_RX 0x00000400
+#define BT_PHY_LE_2M_TX 0x00000800
+#define BT_PHY_LE_2M_RX 0x00001000
+#define BT_PHY_LE_CODED_TX 0x00002000
+#define BT_PHY_LE_CODED_RX 0x00004000
+
+#define BT_MODE 15
+
+#define BT_MODE_BASIC 0x00
+#define BT_MODE_ERTM 0x01
+#define BT_MODE_STREAMING 0x02
+#define BT_MODE_LE_FLOWCTL 0x03
+#define BT_MODE_EXT_FLOWCTL 0x04
+
+#define BT_PKT_STATUS 16
+
+#define BT_SCM_PKT_STATUS 0x03
+#define BT_SCM_ERROR 0x04
+
+#define BT_ISO_QOS 17
+
+#define BT_ISO_QOS_CIG_UNSET 0xff
+#define BT_ISO_QOS_CIS_UNSET 0xff
+
+#define BT_ISO_QOS_BIG_UNSET 0xff
+#define BT_ISO_QOS_BIS_UNSET 0xff
+
+#define BT_ISO_SYNC_TIMEOUT 0x07d0 /* 20 secs */
+
+struct bt_iso_io_qos {
+ __u32 interval;
+ __u16 latency;
+ __u16 sdu;
+ __u8 phy;
+ __u8 rtn;
+};
+
+struct bt_iso_ucast_qos {
+ __u8 cig;
+ __u8 cis;
+ __u8 sca;
+ __u8 packing;
+ __u8 framing;
+ struct bt_iso_io_qos in;
+ struct bt_iso_io_qos out;
+};
+
+struct bt_iso_bcast_qos {
+ __u8 big;
+ __u8 bis;
+ __u8 sync_factor;
+ __u8 packing;
+ __u8 framing;
+ struct bt_iso_io_qos in;
+ struct bt_iso_io_qos out;
+ __u8 encryption;
+ __u8 bcode[16];
+ __u8 options;
+ __u16 skip;
+ __u16 sync_timeout;
+ __u8 sync_cte_type;
+ __u8 mse;
+ __u16 timeout;
+};
+
+struct bt_iso_qos {
+ union {
+ struct bt_iso_ucast_qos ucast;
+ struct bt_iso_bcast_qos bcast;
+ };
+};
+
+#define BT_ISO_PHY_1M 0x01
+#define BT_ISO_PHY_2M 0x02
+#define BT_ISO_PHY_CODED 0x04
+#define BT_ISO_PHY_ANY (BT_ISO_PHY_1M | BT_ISO_PHY_2M | \
+ BT_ISO_PHY_CODED)
+
+#define BT_CODEC 19
+
+struct bt_codec_caps {
+ __u8 len;
+ __u8 data[];
+} __packed;
+
+struct bt_codec {
+ __u8 id;
+ __u16 cid;
+ __u16 vid;
+ __u8 data_path;
+ __u8 num_caps;
+} __packed;
+
+struct bt_codecs {
+ __u8 num_codecs;
+ struct bt_codec codecs[];
+} __packed;
+
+#define BT_CODEC_CVSD 0x02
+#define BT_CODEC_TRANSPARENT 0x03
+#define BT_CODEC_MSBC 0x05
+
+#define BT_ISO_BASE 20
+
+/* Socket option value 21 reserved */
+
+#define BT_PKT_SEQNUM 22
+
+#define BT_SCM_PKT_SEQNUM 0x05
+
+__printf(1, 2)
+void bt_info(const char *fmt, ...);
+__printf(1, 2)
+void bt_warn(const char *fmt, ...);
+__printf(1, 2)
+void bt_err(const char *fmt, ...);
+#if IS_ENABLED(CONFIG_BT_FEATURE_DEBUG)
+void bt_dbg_set(bool enable);
+bool bt_dbg_get(void);
+__printf(1, 2)
+void bt_dbg(const char *fmt, ...);
+#endif
__printf(1, 2)
-int bt_info(const char *fmt, ...);
+void bt_warn_ratelimited(const char *fmt, ...);
__printf(1, 2)
-int bt_err(const char *fmt, ...);
+void bt_err_ratelimited(const char *fmt, ...);
#define BT_INFO(fmt, ...) bt_info(fmt "\n", ##__VA_ARGS__)
+#define BT_WARN(fmt, ...) bt_warn(fmt "\n", ##__VA_ARGS__)
#define BT_ERR(fmt, ...) bt_err(fmt "\n", ##__VA_ARGS__)
+
+#if IS_ENABLED(CONFIG_BT_FEATURE_DEBUG)
+#define BT_DBG(fmt, ...) \
+ bt_dbg("%s:%d: " fmt "\n", __func__, __LINE__, ##__VA_ARGS__)
+#else
#define BT_DBG(fmt, ...) pr_debug(fmt "\n", ##__VA_ARGS__)
+#endif
+
+#define bt_dev_name(hdev) ((hdev) ? (hdev)->name : "null")
+
+#define bt_dev_info(hdev, fmt, ...) \
+ BT_INFO("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
+#define bt_dev_warn(hdev, fmt, ...) \
+ BT_WARN("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
+#define bt_dev_err(hdev, fmt, ...) \
+ BT_ERR("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
+#define bt_dev_dbg(hdev, fmt, ...) \
+ BT_DBG("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
+
+#define bt_dev_warn_ratelimited(hdev, fmt, ...) \
+ bt_warn_ratelimited("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
+#define bt_dev_err_ratelimited(hdev, fmt, ...) \
+ bt_err_ratelimited("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
/* Connection and socket states */
-enum {
+enum bt_sock_state {
BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
BT_OPEN,
BT_BOUND,
@@ -166,7 +344,7 @@ typedef struct {
#define BDADDR_LE_PUBLIC 0x01
#define BDADDR_LE_RANDOM 0x02
-static inline bool bdaddr_type_is_valid(__u8 type)
+static inline bool bdaddr_type_is_valid(u8 type)
{
switch (type) {
case BDADDR_BREDR:
@@ -178,7 +356,7 @@ static inline bool bdaddr_type_is_valid(__u8 type)
return false;
}
-static inline bool bdaddr_type_is_le(__u8 type)
+static inline bool bdaddr_type_is_le(u8 type)
{
switch (type) {
case BDADDR_LE_PUBLIC:
@@ -189,8 +367,8 @@ static inline bool bdaddr_type_is_le(__u8 type)
return false;
}
-#define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0} })
-#define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff} })
+#define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
+#define BDADDR_NONE (&(bdaddr_t) {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff}})
/* Copy, swap, convert BD Address */
static inline int bacmp(const bdaddr_t *ba1, const bdaddr_t *ba2)
@@ -202,7 +380,7 @@ static inline void bacpy(bdaddr_t *dst, const bdaddr_t *src)
memcpy(dst, src, sizeof(bdaddr_t));
}
-void baswap(bdaddr_t *dst, bdaddr_t *src);
+void baswap(bdaddr_t *dst, const bdaddr_t *src);
/* Common socket structures and functions */
@@ -210,16 +388,18 @@ void baswap(bdaddr_t *dst, bdaddr_t *src);
struct bt_sock {
struct sock sk;
- bdaddr_t src;
- bdaddr_t dst;
struct list_head accept_q;
struct sock *parent;
unsigned long flags;
+ void (*skb_msg_name)(struct sk_buff *, void *, int *);
+ void (*skb_put_cmsg)(struct sk_buff *, struct msghdr *, struct sock *);
};
enum {
BT_SK_DEFER_SETUP,
BT_SK_SUSPEND,
+ BT_SK_PKT_STATUS,
+ BT_SK_PKT_SEQNUM,
};
struct bt_sock_list {
@@ -234,60 +414,102 @@ int bt_sock_register(int proto, const struct net_proto_family *ops);
void bt_sock_unregister(int proto);
void bt_sock_link(struct bt_sock_list *l, struct sock *s);
void bt_sock_unlink(struct bt_sock_list *l, struct sock *s);
-int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
- struct msghdr *msg, size_t len, int flags);
-int bt_sock_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
- struct msghdr *msg, size_t len, int flags);
-uint bt_sock_poll(struct file *file, struct socket *sock, poll_table *wait);
+bool bt_sock_linked(struct bt_sock_list *l, struct sock *s);
+struct sock *bt_sock_alloc(struct net *net, struct socket *sock,
+ struct proto *prot, int proto, gfp_t prio, int kern);
+int bt_sock_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
+ int flags);
+int bt_sock_stream_recvmsg(struct socket *sock, struct msghdr *msg,
+ size_t len, int flags);
+__poll_t bt_sock_poll(struct file *file, struct socket *sock, poll_table *wait);
int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
+int bt_sock_wait_ready(struct sock *sk, unsigned int msg_flags);
-void bt_accept_enqueue(struct sock *parent, struct sock *sk);
+void bt_accept_enqueue(struct sock *parent, struct sock *sk, bool bh);
void bt_accept_unlink(struct sock *sk);
struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock);
/* Skb helpers */
struct l2cap_ctrl {
- unsigned int sframe:1,
- poll:1,
- final:1,
- fcs:1,
- sar:2,
- super:2;
- __u16 reqseq;
- __u16 txseq;
- __u8 retries;
+ u8 sframe:1,
+ poll:1,
+ final:1,
+ fcs:1,
+ sar:2,
+ super:2;
+
+ u16 reqseq;
+ u16 txseq;
+ u8 retries;
+ __le16 psm;
+ bdaddr_t bdaddr;
+ struct l2cap_chan *chan;
};
struct hci_dev;
-typedef void (*hci_req_complete_t)(struct hci_dev *hdev, u8 status);
+typedef void (*hci_req_complete_t)(struct hci_dev *hdev, u8 status, u16 opcode);
+typedef void (*hci_req_complete_skb_t)(struct hci_dev *hdev, u8 status,
+ u16 opcode, struct sk_buff *skb);
+
+void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status,
+ hci_req_complete_t *req_complete,
+ hci_req_complete_skb_t *req_complete_skb);
+
+int hci_ethtool_ts_info(unsigned int index, int sk_proto,
+ struct kernel_ethtool_ts_info *ts_info);
+
+#define HCI_REQ_START BIT(0)
+#define HCI_REQ_SKB BIT(1)
+
+struct hci_ctrl {
+ struct sock *sk;
+ u16 opcode;
+ u8 req_flags;
+ u8 req_event;
+ union {
+ hci_req_complete_t req_complete;
+ hci_req_complete_skb_t req_complete_skb;
+ };
+};
-struct hci_req_ctrl {
- bool start;
- u8 event;
- hci_req_complete_t complete;
+struct mgmt_ctrl {
+ struct hci_dev *hdev;
+ u16 opcode;
};
struct bt_skb_cb {
- __u8 pkt_type;
- __u8 incoming;
- __u16 expect;
- __u8 force_active;
- struct l2cap_ctrl control;
- struct hci_req_ctrl req;
+ u8 pkt_type;
+ u8 force_active;
+ u16 expect;
+ u16 pkt_seqnum;
+ u8 incoming:1;
+ u8 pkt_status:2;
+ union {
+ struct l2cap_ctrl l2cap;
+ struct hci_ctrl hci;
+ struct mgmt_ctrl mgmt;
+ struct scm_creds creds;
+ };
};
#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))
+#define hci_skb_pkt_type(skb) bt_cb((skb))->pkt_type
+#define hci_skb_pkt_status(skb) bt_cb((skb))->pkt_status
+#define hci_skb_pkt_seqnum(skb) bt_cb((skb))->pkt_seqnum
+#define hci_skb_expect(skb) bt_cb((skb))->expect
+#define hci_skb_opcode(skb) bt_cb((skb))->hci.opcode
+#define hci_skb_event(skb) bt_cb((skb))->hci.req_event
+#define hci_skb_sk(skb) bt_cb((skb))->hci.sk
+
static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)
{
struct sk_buff *skb;
skb = alloc_skb(len + BT_SKB_RESERVE, how);
- if (skb) {
+ if (skb)
skb_reserve(skb, BT_SKB_RESERVE);
- bt_cb(skb)->incoming = 0;
- }
return skb;
}
@@ -297,10 +519,8 @@ static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk,
struct sk_buff *skb;
skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err);
- if (skb) {
+ if (skb)
skb_reserve(skb, BT_SKB_RESERVE);
- bt_cb(skb)->incoming = 0;
- }
if (!skb && *err)
return NULL;
@@ -321,26 +541,134 @@ out:
return NULL;
}
-int bt_to_errno(__u16 code);
+/* Shall not be called with lock_sock held */
+static inline struct sk_buff *bt_skb_sendmsg(struct sock *sk,
+ struct msghdr *msg,
+ size_t len, size_t mtu,
+ size_t headroom, size_t tailroom)
+{
+ struct sk_buff *skb;
+ size_t size = min_t(size_t, len, mtu);
+ int err;
+
+ skb = bt_skb_send_alloc(sk, size + headroom + tailroom,
+ msg->msg_flags & MSG_DONTWAIT, &err);
+ if (!skb)
+ return ERR_PTR(err);
+
+ skb_reserve(skb, headroom);
+ skb_tailroom_reserve(skb, mtu, tailroom);
+
+ if (!copy_from_iter_full(skb_put(skb, size), size, &msg->msg_iter)) {
+ kfree_skb(skb);
+ return ERR_PTR(-EFAULT);
+ }
+
+ skb->priority = READ_ONCE(sk->sk_priority);
+
+ return skb;
+}
+
+/* Similar to bt_skb_sendmsg but can split the msg into multiple fragments
+ * accourding to the MTU.
+ */
+static inline struct sk_buff *bt_skb_sendmmsg(struct sock *sk,
+ struct msghdr *msg,
+ size_t len, size_t mtu,
+ size_t headroom, size_t tailroom)
+{
+ struct sk_buff *skb, **frag;
+
+ skb = bt_skb_sendmsg(sk, msg, len, mtu, headroom, tailroom);
+ if (IS_ERR(skb))
+ return skb;
+
+ len -= skb->len;
+ if (!len)
+ return skb;
+
+ /* Add remaining data over MTU as continuation fragments */
+ frag = &skb_shinfo(skb)->frag_list;
+ while (len) {
+ struct sk_buff *tmp;
+
+ tmp = bt_skb_sendmsg(sk, msg, len, mtu, headroom, tailroom);
+ if (IS_ERR(tmp)) {
+ return skb;
+ }
+
+ len -= tmp->len;
+
+ *frag = tmp;
+ frag = &(*frag)->next;
+ }
+
+ return skb;
+}
+
+int bt_to_errno(u16 code);
+__u8 bt_status(int err);
+
+void hci_sock_set_flag(struct sock *sk, int nr);
+void hci_sock_clear_flag(struct sock *sk, int nr);
+int hci_sock_test_flag(struct sock *sk, int nr);
+unsigned short hci_sock_get_channel(struct sock *sk);
+u32 hci_sock_get_cookie(struct sock *sk);
-extern int hci_sock_init(void);
-extern void hci_sock_cleanup(void);
+int hci_sock_init(void);
+void hci_sock_cleanup(void);
-extern int bt_sysfs_init(void);
-extern void bt_sysfs_cleanup(void);
+int bt_sysfs_init(void);
+void bt_sysfs_cleanup(void);
-extern int bt_procfs_init(struct net *net, const char *name,
- struct bt_sock_list* sk_list,
- int (* seq_show)(struct seq_file *, void *));
-extern void bt_procfs_cleanup(struct net *net, const char *name);
+int bt_procfs_init(struct net *net, const char *name,
+ struct bt_sock_list *sk_list,
+ int (*seq_show)(struct seq_file *, void *));
+void bt_procfs_cleanup(struct net *net, const char *name);
extern struct dentry *bt_debugfs;
int l2cap_init(void);
void l2cap_exit(void);
+#if IS_ENABLED(CONFIG_BT_BREDR)
int sco_init(void);
void sco_exit(void);
+#else
+static inline int sco_init(void)
+{
+ return 0;
+}
+
+static inline void sco_exit(void)
+{
+}
+#endif
+
+#if IS_ENABLED(CONFIG_BT_LE)
+int iso_init(void);
+int iso_exit(void);
+bool iso_inited(void);
+#else
+static inline int iso_init(void)
+{
+ return 0;
+}
+
+static inline int iso_exit(void)
+{
+ return 0;
+}
+
+static inline bool iso_inited(void)
+{
+ return false;
+}
+#endif
+
+int mgmt_init(void);
+void mgmt_exit(void);
+void mgmt_cleanup(struct sock *sk);
void bt_sock_reclassify_lock(struct sock *sk, int proto);
generated by cgit (git 2.34.1) at 2025-12-25 05:25:18 +0000