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Commit 4b42c542 authored by John W. Linville's avatar John W. Linville
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Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/padovan/bluetooth-next-2.6 

Conflicts:
	net/bluetooth/l2cap_core.c
parents d8598981 e2fd318e
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Showing with 690 additions and 270 deletions
drivers/bluetooth/ath3k.c
View file @ 4b42c542
......@@ -375,6 +375,11 @@ static int ath3k_probe(struct usb_interface *intf,
/* load patch and sysconfig files for AR3012 */
if (id->driver_info & BTUSB_ATH3012) {
/* New firmware with patch and sysconfig files already loaded */
if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
return -ENODEV;
ret = ath3k_load_patch(udev);
if (ret < 0) {
BT_ERR("Loading patch file failed");
......
drivers/bluetooth/btusb.c
View file @ 4b42c542
......@@ -54,6 +54,7 @@ static struct usb_driver btusb_driver;
#define BTUSB_BCM92035 0x10
#define BTUSB_BROKEN_ISOC 0x20
#define BTUSB_WRONG_SCO_MTU 0x40
#define BTUSB_ATH3012 0x80
static struct usb_device_id btusb_table[] = {
/* Generic Bluetooth USB device */
......@@ -110,7 +111,7 @@ static struct usb_device_id blacklist_table[] = {
{ USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
/* Atheros 3012 with sflash firmware */
{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_IGNORE },
{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
/* Atheros AR5BBU12 with sflash firmware */
{ USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
......@@ -914,6 +915,15 @@ static int btusb_probe(struct usb_interface *intf,
if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
return -ENODEV;
if (id->driver_info & BTUSB_ATH3012) {
struct usb_device *udev = interface_to_usbdev(intf);
/* Old firmware would otherwise let ath3k driver load
* patch and sysconfig files */
if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
return -ENODEV;
}
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
......
include/net/bluetooth/bluetooth.h
View file @ 4b42c542
......@@ -56,6 +56,7 @@
#define BT_SECURITY 4
struct bt_security {
__u8 level;
__u8 key_size;
};
#define BT_SECURITY_SDP 0
#define BT_SECURITY_LOW 1
......@@ -76,9 +77,12 @@ struct bt_power {
#define BT_POWER_FORCE_ACTIVE_OFF 0
#define BT_POWER_FORCE_ACTIVE_ON 1
#define BT_INFO(fmt, arg...) printk(KERN_INFO "Bluetooth: " fmt "\n" , ## arg)
#define BT_ERR(fmt, arg...) printk(KERN_ERR "%s: " fmt "\n" , __func__ , ## arg)
#define BT_DBG(fmt, arg...) pr_debug("%s: " fmt "\n" , __func__ , ## arg)
__attribute__((format (printf, 2, 3)))
int bt_printk(const char *level, const char *fmt, ...);
#define BT_INFO(fmt, arg...) bt_printk(KERN_INFO, pr_fmt(fmt), ##arg)
#define BT_ERR(fmt, arg...) bt_printk(KERN_ERR, pr_fmt(fmt), ##arg)
#define BT_DBG(fmt, arg...) pr_debug(fmt "\n", ##arg)
/* Connection and socket states */
enum {
......@@ -204,7 +208,7 @@ static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk,
return NULL;
}
int bt_err(__u16 code);
int bt_to_errno(__u16 code);
extern int hci_sock_init(void);
extern void hci_sock_cleanup(void);
......
include/net/bluetooth/hci.h
View file @ 4b42c542
......@@ -211,11 +211,16 @@ enum {
#define LMP_EDR_3S_ESCO 0x80
#define LMP_EXT_INQ 0x01
#define LMP_SIMUL_LE_BR 0x02
#define LMP_SIMPLE_PAIR 0x08
#define LMP_NO_FLUSH 0x40
#define LMP_LSTO 0x01
#define LMP_INQ_TX_PWR 0x02
#define LMP_EXTFEATURES 0x80
/* Extended LMP features */
#define LMP_HOST_LE 0x02
/* Connection modes */
#define HCI_CM_ACTIVE 0x0000
......@@ -254,6 +259,10 @@ enum {
#define HCI_LK_UNAUTH_COMBINATION 0x04
#define HCI_LK_AUTH_COMBINATION 0x05
#define HCI_LK_CHANGED_COMBINATION 0x06
/* The spec doesn't define types for SMP keys */
#define HCI_LK_SMP_LTK 0x81
#define HCI_LK_SMP_IRK 0x82
#define HCI_LK_SMP_CSRK 0x83
/* ----- HCI Commands ---- */
#define HCI_OP_NOP 0x0000
......@@ -653,6 +662,12 @@ struct hci_rp_read_local_oob_data {
#define HCI_OP_READ_INQ_RSP_TX_POWER 0x0c58
#define HCI_OP_WRITE_LE_HOST_SUPPORTED 0x0c6d
struct hci_cp_write_le_host_supported {
__u8 le;
__u8 simul;
} __packed;
#define HCI_OP_READ_LOCAL_VERSION 0x1001
struct hci_rp_read_local_version {
__u8 status;
......@@ -676,6 +691,9 @@ struct hci_rp_read_local_features {
} __packed;
#define HCI_OP_READ_LOCAL_EXT_FEATURES 0x1004
struct hci_cp_read_local_ext_features {
__u8 page;
} __packed;
struct hci_rp_read_local_ext_features {
__u8 status;
__u8 page;
......
include/net/bluetooth/hci_core.h
View file @ 4b42c542
......@@ -74,12 +74,28 @@ struct bt_uuid {
u8 svc_hint;
};
struct key_master_id {
__le16 ediv;
u8 rand[8];
} __packed;
struct link_key_data {
bdaddr_t bdaddr;
u8 type;
u8 val[16];
u8 pin_len;
u8 dlen;
u8 data[0];
} __packed;
struct link_key {
struct list_head list;
bdaddr_t bdaddr;
u8 type;
u8 val[16];
u8 pin_len;
u8 dlen;
u8 data[0];
};
struct oob_data {
......@@ -113,6 +129,7 @@ struct hci_dev {
__u8 major_class;
__u8 minor_class;
__u8 features[8];
__u8 extfeatures[8];
__u8 commands[64];
__u8 ssp_mode;
__u8 hci_ver;
......@@ -223,7 +240,6 @@ struct hci_conn {
struct list_head list;
atomic_t refcnt;
spinlock_t lock;
bdaddr_t dst;
__u8 dst_type;
......@@ -245,11 +261,11 @@ struct hci_conn {
__u8 sec_level;
__u8 pending_sec_level;
__u8 pin_length;
__u8 enc_key_size;
__u8 io_capability;
__u8 power_save;
__u16 disc_timeout;
unsigned long pend;
__u8 ltk[16];
__u8 remote_cap;
__u8 remote_oob;
......@@ -272,7 +288,6 @@ struct hci_conn {
struct hci_dev *hdev;
void *l2cap_data;
void *sco_data;
void *priv;
struct hci_conn *link;
......@@ -538,6 +553,11 @@ int hci_link_keys_clear(struct hci_dev *hdev);
struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
bdaddr_t *bdaddr, u8 type);
int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
u8 key_size, __le16 ediv, u8 rand[8], u8 ltk[16]);
int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
int hci_remote_oob_data_clear(struct hci_dev *hdev);
......@@ -579,6 +599,9 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
#define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
#define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
/* ----- Extended LMP capabilities ----- */
#define lmp_host_le_capable(dev) ((dev)->extfeatures[0] & LMP_HOST_LE)
/* ----- HCI protocols ----- */
struct hci_proto {
char *name;
......
include/net/bluetooth/l2cap.h
View file @ 4b42c542
......@@ -37,7 +37,6 @@
#define L2CAP_DEFAULT_MONITOR_TO 12000 /* 12 seconds */
#define L2CAP_DEFAULT_MAX_PDU_SIZE 1009 /* Sized for 3-DH5 packet */
#define L2CAP_DEFAULT_ACK_TO 200
#define L2CAP_LOCAL_BUSY_TRIES 12
#define L2CAP_LE_DEFAULT_MTU 23
#define L2CAP_CONN_TIMEOUT (40000) /* 40 seconds */
......@@ -130,6 +129,12 @@ struct l2cap_conninfo {
#define L2CAP_SDU_END 0x8000
#define L2CAP_SDU_CONTINUE 0xC000
/* L2CAP Command rej. reasons */
#define L2CAP_REJ_NOT_UNDERSTOOD 0x0000
#define L2CAP_REJ_MTU_EXCEEDED 0x0001
#define L2CAP_REJ_INVALID_CID 0x0002
/* L2CAP structures */
struct l2cap_hdr {
__le16 len;
......@@ -144,8 +149,19 @@ struct l2cap_cmd_hdr {
} __packed;
#define L2CAP_CMD_HDR_SIZE 4
struct l2cap_cmd_rej {
struct l2cap_cmd_rej_unk {
__le16 reason;
} __packed;
struct l2cap_cmd_rej_mtu {
__le16 reason;
__le16 max_mtu;
} __packed;
struct l2cap_cmd_rej_cid {
__le16 reason;
__le16 scid;
__le16 dcid;
} __packed;
struct l2cap_conn_req {
......@@ -352,8 +368,6 @@ struct l2cap_chan {
struct sk_buff *tx_send_head;
struct sk_buff_head tx_q;
struct sk_buff_head srej_q;
struct sk_buff_head busy_q;
struct work_struct busy_work;
struct list_head srej_l;
struct list_head list;
......@@ -422,6 +436,7 @@ struct l2cap_conn {
struct l2cap_pinfo {
struct bt_sock bt;
struct l2cap_chan *chan;
struct sk_buff *rx_busy_skb;
};
enum {
......@@ -449,7 +464,6 @@ enum {
CONN_REJ_ACT,
CONN_SEND_FBIT,
CONN_RNR_SENT,
CONN_SAR_RETRY,
};
#define __set_chan_timer(c, t) l2cap_set_timer(c, &c->chan_timer, (t))
......@@ -498,5 +512,6 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason);
void l2cap_chan_destroy(struct l2cap_chan *chan);
int l2cap_chan_connect(struct l2cap_chan *chan);
int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len);
void l2cap_chan_busy(struct l2cap_chan *chan, int busy);
#endif /* __L2CAP_H */
include/net/bluetooth/mgmt.h
View file @ 4b42c542
......@@ -101,6 +101,8 @@ struct mgmt_key_info {
u8 type;
u8 val[16];
u8 pin_len;
u8 dlen;
u8 data[0];
} __packed;
#define MGMT_OP_LOAD_KEYS 0x000D
......
include/net/bluetooth/smp.h
View file @ 4b42c542
......@@ -118,5 +118,6 @@ struct smp_cmd_security_req {
/* SMP Commands */
int smp_conn_security(struct l2cap_conn *conn, __u8 sec_level);
int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb);
int smp_distribute_keys(struct l2cap_conn *conn, __u8 force);
#endif /* __SMP_H */
net/bluetooth/hci_core.c
View file @ 4b42c542
......@@ -60,8 +60,6 @@ static void hci_tx_task(unsigned long arg);
static DEFINE_RWLOCK(hci_task_lock);
static int enable_smp;
/* HCI device list */
LIST_HEAD(hci_dev_list);
DEFINE_RWLOCK(hci_dev_list_lock);
......@@ -148,7 +146,7 @@ static int __hci_request(struct hci_dev *hdev, void (*req)(struct hci_dev *hdev,
switch (hdev->req_status) {
case HCI_REQ_DONE:
err = -bt_err(hdev->req_result);
err = -bt_to_errno(hdev->req_result);
break;
case HCI_REQ_CANCELED:
......@@ -542,7 +540,7 @@ int hci_dev_open(__u16 dev)
ret = __hci_request(hdev, hci_init_req, 0,
msecs_to_jiffies(HCI_INIT_TIMEOUT));
if (lmp_le_capable(hdev))
if (lmp_host_le_capable(hdev))
ret = __hci_request(hdev, hci_le_init_req, 0,
msecs_to_jiffies(HCI_INIT_TIMEOUT));
......@@ -1059,6 +1057,42 @@ static int hci_persistent_key(struct hci_dev *hdev, struct hci_conn *conn,
return 0;
}
struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8])
{
struct link_key *k;
list_for_each_entry(k, &hdev->link_keys, list) {
struct key_master_id *id;
if (k->type != HCI_LK_SMP_LTK)
continue;
if (k->dlen != sizeof(*id))
continue;
id = (void *) &k->data;
if (id->ediv == ediv &&
(memcmp(rand, id->rand, sizeof(id->rand)) == 0))
return k;
}
return NULL;
}
EXPORT_SYMBOL(hci_find_ltk);
struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
bdaddr_t *bdaddr, u8 type)
{
struct link_key *k;
list_for_each_entry(k, &hdev->link_keys, list)
if (k->type == type && bacmp(bdaddr, &k->bdaddr) == 0)
return k;
return NULL;
}
EXPORT_SYMBOL(hci_find_link_key_type);
int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len)
{
......@@ -1114,6 +1148,44 @@ int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
return 0;
}
int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
u8 key_size, __le16 ediv, u8 rand[8], u8 ltk[16])
{
struct link_key *key, *old_key;
struct key_master_id *id;
u8 old_key_type;
BT_DBG("%s addr %s", hdev->name, batostr(bdaddr));
old_key = hci_find_link_key_type(hdev, bdaddr, HCI_LK_SMP_LTK);
if (old_key) {
key = old_key;
old_key_type = old_key->type;
} else {
key = kzalloc(sizeof(*key) + sizeof(*id), GFP_ATOMIC);
if (!key)
return -ENOMEM;
list_add(&key->list, &hdev->link_keys);
old_key_type = 0xff;
}
key->dlen = sizeof(*id);
bacpy(&key->bdaddr, bdaddr);
memcpy(key->val, ltk, sizeof(key->val));
key->type = HCI_LK_SMP_LTK;
key->pin_len = key_size;
id = (void *) &key->data;
id->ediv = ediv;
memcpy(id->rand, rand, sizeof(id->rand));
if (new_key)
mgmt_new_key(hdev->id, key, old_key_type);
return 0;
}
int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr)
{
struct link_key *key;
......@@ -1246,7 +1318,7 @@ int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr)
if (bacmp(bdaddr, BDADDR_ANY) == 0)
return -EBADF;
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
if (hci_blacklist_lookup(hdev, bdaddr)) {
err = -EEXIST;
......@@ -1266,7 +1338,7 @@ int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr)
err = 0;
err:
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
return err;
}
......@@ -1275,7 +1347,7 @@ int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr)
struct bdaddr_list *entry;
int err = 0;
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
if (bacmp(bdaddr, BDADDR_ANY) == 0) {
hci_blacklist_clear(hdev);
......@@ -1292,7 +1364,7 @@ int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr)
kfree(entry);
done:
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
return err;
}
......@@ -1368,14 +1440,6 @@ int hci_add_adv_entry(struct hci_dev *hdev,
return 0;
}
static struct crypto_blkcipher *alloc_cypher(void)
{
if (enable_smp)
return crypto_alloc_blkcipher("ecb(aes)", 0, CRYPTO_ALG_ASYNC);
return ERR_PTR(-ENOTSUPP);
}
/* Register HCI device */
int hci_register_dev(struct hci_dev *hdev)
{
......@@ -1460,7 +1524,7 @@ int hci_register_dev(struct hci_dev *hdev)
if (!hdev->workqueue)
goto nomem;
hdev->tfm = alloc_cypher();
hdev->tfm = crypto_alloc_blkcipher("ecb(aes)", 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(hdev->tfm))
BT_INFO("Failed to load transform for ecb(aes): %ld",
PTR_ERR(hdev->tfm));
......@@ -2352,6 +2416,3 @@ static void hci_cmd_task(unsigned long arg)
}
}
}
module_param(enable_smp, bool, 0644);
MODULE_PARM_DESC(enable_smp, "Enable SMP support (LE only)");
net/bluetooth/hci_event.c
View file @ 4b42c542
......@@ -45,6 +45,8 @@
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
static int enable_le;
/* Handle HCI Event packets */
static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb)
......@@ -525,6 +527,20 @@ static void hci_setup_event_mask(struct hci_dev *hdev)
hci_send_cmd(hdev, HCI_OP_SET_EVENT_MASK, sizeof(events), events);
}
static void hci_set_le_support(struct hci_dev *hdev)
{
struct hci_cp_write_le_host_supported cp;
memset(&cp, 0, sizeof(cp));
if (enable_le) {
cp.le = 1;
cp.simul = !!(hdev->features[6] & LMP_SIMUL_LE_BR);
}
hci_send_cmd(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(cp), &cp);
}
static void hci_setup(struct hci_dev *hdev)
{
hci_setup_event_mask(hdev);
......@@ -542,6 +558,17 @@ static void hci_setup(struct hci_dev *hdev)
if (hdev->features[7] & LMP_INQ_TX_PWR)
hci_send_cmd(hdev, HCI_OP_READ_INQ_RSP_TX_POWER, 0, NULL);
if (hdev->features[7] & LMP_EXTFEATURES) {
struct hci_cp_read_local_ext_features cp;
cp.page = 0x01;
hci_send_cmd(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES,
sizeof(cp), &cp);
}
if (hdev->features[4] & LMP_LE)
hci_set_le_support(hdev);
}
static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
......@@ -658,6 +685,21 @@ static void hci_cc_read_local_features(struct hci_dev *hdev, struct sk_buff *skb
hdev->features[6], hdev->features[7]);
}
static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
struct sk_buff *skb)
{
struct hci_rp_read_local_ext_features *rp = (void *) skb->data;
BT_DBG("%s status 0x%x", hdev->name, rp->status);
if (rp->status)
return;
memcpy(hdev->extfeatures, rp->features, 8);
hci_req_complete(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES, rp->status);
}
static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_rp_read_buffer_size *rp = (void *) skb->data;
......@@ -892,6 +934,21 @@ static void hci_cc_le_ltk_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
hci_req_complete(hdev, HCI_OP_LE_LTK_NEG_REPLY, rp->status);
}
static inline void hci_cc_write_le_host_supported(struct hci_dev *hdev,
struct sk_buff *skb)
{
struct hci_cp_read_local_ext_features cp;
__u8 status = *((__u8 *) skb->data);
BT_DBG("%s status 0x%x", hdev->name, status);
if (status)
return;
cp.page = 0x01;
hci_send_cmd(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES, sizeof(cp), &cp);
}
static inline void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
{
BT_DBG("%s status 0x%x", hdev->name, status);
......@@ -1826,6 +1883,10 @@ static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *sk
hci_cc_read_local_features(hdev, skb);
break;
case HCI_OP_READ_LOCAL_EXT_FEATURES:
hci_cc_read_local_ext_features(hdev, skb);
break;
case HCI_OP_READ_BUFFER_SIZE:
hci_cc_read_buffer_size(hdev, skb);
break;
......@@ -1894,6 +1955,10 @@ static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *sk
hci_cc_le_ltk_neg_reply(hdev, skb);
break;
case HCI_OP_WRITE_LE_HOST_SUPPORTED:
hci_cc_write_le_host_supported(hdev, skb);
break;
default:
BT_DBG("%s opcode 0x%x", hdev->name, opcode);
break;
......@@ -2793,21 +2858,36 @@ static inline void hci_le_ltk_request_evt(struct hci_dev *hdev,
{
struct hci_ev_le_ltk_req *ev = (void *) skb->data;
struct hci_cp_le_ltk_reply cp;
struct hci_cp_le_ltk_neg_reply neg;
struct hci_conn *conn;
struct link_key *ltk;
BT_DBG("%s handle %d", hdev->name, cpu_to_le16(ev->handle));
hci_dev_lock(hdev);
conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
if (conn == NULL)
goto not_found;
memset(&cp, 0, sizeof(cp));
ltk = hci_find_ltk(hdev, ev->ediv, ev->random);
if (ltk == NULL)
goto not_found;
memcpy(cp.ltk, ltk->val, sizeof(ltk->val));
cp.handle = cpu_to_le16(conn->handle);
memcpy(cp.ltk, conn->ltk, sizeof(conn->ltk));
conn->pin_length = ltk->pin_len;
hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp);
hci_dev_unlock(hdev);
return;
not_found:
neg.handle = ev->handle;
hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(neg), &neg);
hci_dev_unlock(hdev);
}
static inline void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
......@@ -3022,3 +3102,6 @@ void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data)
hci_send_to_sock(hdev, skb, NULL);
kfree_skb(skb);
}
module_param(enable_le, bool, 0444);
MODULE_PARM_DESC(enable_le, "Enable LE support");
net/bluetooth/l2cap_core.c
View file @ 4b42c542
......@@ -61,13 +61,9 @@ int disable_ertm;
static u32 l2cap_feat_mask = L2CAP_FEAT_FIXED_CHAN;
static u8 l2cap_fixed_chan[8] = { 0x02, };
static struct workqueue_struct *_busy_wq;
static LIST_HEAD(chan_list);
static DEFINE_RWLOCK(chan_list_lock);
static void l2cap_busy_work(struct work_struct *work);
static struct sk_buff *l2cap_build_cmd(struct l2cap_conn *conn,
u8 code, u8 ident, u16 dlen, void *data);
static void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len,
......@@ -223,18 +219,18 @@ static u16 l2cap_alloc_cid(struct l2cap_conn *conn)
static void l2cap_set_timer(struct l2cap_chan *chan, struct timer_list *timer, long timeout)
{
BT_DBG("chan %p state %d timeout %ld", chan->sk, chan->state, timeout);
BT_DBG("chan %p state %d timeout %ld", chan->sk, chan->state, timeout);
if (!mod_timer(timer, jiffies + timeout))
chan_hold(chan);
if (!mod_timer(timer, jiffies + msecs_to_jiffies(timeout)))
chan_hold(chan);
}
static void l2cap_clear_timer(struct l2cap_chan *chan, struct timer_list *timer)
{
BT_DBG("chan %p state %d", chan, chan->state);
BT_DBG("chan %p state %d", chan, chan->state);
if (timer_pending(timer) && del_timer(timer))
chan_put(chan);
if (timer_pending(timer) && del_timer(timer))
chan_put(chan);
}
static void l2cap_state_change(struct l2cap_chan *chan, int state)
......@@ -395,7 +391,6 @@ static void l2cap_chan_del(struct l2cap_chan *chan, int err)
__clear_ack_timer(chan);
skb_queue_purge(&chan->srej_q);
skb_queue_purge(&chan->busy_q);
list_for_each_entry_safe(l, tmp, &chan->srej_l, list) {
list_del(&l->list);
......@@ -741,9 +736,9 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
&chan->conf_state)) {
/* l2cap_chan_close() calls list_del(chan)
* so release the lock */
read_unlock_bh(&conn->chan_lock);
read_unlock(&conn->chan_lock);
l2cap_chan_close(chan, ECONNRESET);
read_lock_bh(&conn->chan_lock);
read_lock(&conn->chan_lock);
bh_unlock_sock(sk);
continue;
}
......@@ -1873,11 +1868,9 @@ static inline void l2cap_ertm_init(struct l2cap_chan *chan)
setup_timer(&chan->ack_timer, l2cap_ack_timeout, (unsigned long) chan);
skb_queue_head_init(&chan->srej_q);
skb_queue_head_init(&chan->busy_q);
INIT_LIST_HEAD(&chan->srej_l);
INIT_WORK(&chan->busy_work, l2cap_busy_work);
sk->sk_backlog_rcv = l2cap_ertm_data_rcv;
}
......@@ -2284,9 +2277,9 @@ static void l2cap_conf_rfc_get(struct l2cap_chan *chan, void *rsp, int len)
static inline int l2cap_command_rej(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u8 *data)
{
struct l2cap_cmd_rej *rej = (struct l2cap_cmd_rej *) data;
struct l2cap_cmd_rej_unk *rej = (struct l2cap_cmd_rej_unk *) data;
if (rej->reason != 0x0000)
if (rej->reason != L2CAP_REJ_NOT_UNDERSTOOD)
return 0;
if ((conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_SENT) &&
......@@ -2532,9 +2525,12 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
if ((bt_sk(sk)->defer_setup && chan->state != BT_CONNECT2) ||
(!bt_sk(sk)->defer_setup && chan->state != BT_CONFIG)) {
struct l2cap_cmd_rej rej;
struct l2cap_cmd_rej_cid rej;
rej.reason = cpu_to_le16(L2CAP_REJ_INVALID_CID);
rej.scid = cpu_to_le16(chan->scid);
rej.dcid = cpu_to_le16(chan->dcid);
rej.reason = cpu_to_le16(0x0002);
l2cap_send_cmd(conn, cmd->ident, L2CAP_COMMAND_REJ,
sizeof(rej), &rej);
goto unlock;
......@@ -3025,12 +3021,12 @@ static inline void l2cap_sig_channel(struct l2cap_conn *conn,
err = l2cap_bredr_sig_cmd(conn, &cmd, cmd_len, data);
if (err) {
struct l2cap_cmd_rej rej;
struct l2cap_cmd_rej_unk rej;
BT_ERR("Wrong link type (%d)", err);
/* FIXME: Map err to a valid reason */
rej.reason = cpu_to_le16(0);
rej.reason = cpu_to_le16(L2CAP_REJ_NOT_UNDERSTOOD);
l2cap_send_cmd(conn, cmd.ident, L2CAP_COMMAND_REJ, sizeof(rej), &rej);
}
......@@ -3183,32 +3179,27 @@ static int l2cap_ertm_reassembly_sdu(struct l2cap_chan *chan, struct sk_buff *sk
if (!chan->sdu)
goto disconnect;
if (!test_bit(CONN_SAR_RETRY, &chan->conn_state)) {
chan->partial_sdu_len += skb->len;
chan->partial_sdu_len += skb->len;
if (chan->partial_sdu_len > chan->imtu)
goto drop;
if (chan->partial_sdu_len > chan->imtu)
goto drop;
if (chan->partial_sdu_len != chan->sdu_len)
goto drop;
if (chan->partial_sdu_len != chan->sdu_len)
goto drop;
memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len);
}
memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len);
_skb = skb_clone(chan->sdu, GFP_ATOMIC);
if (!_skb) {
set_bit(CONN_SAR_RETRY, &chan->conn_state);
return -ENOMEM;
}
err = chan->ops->recv(chan->data, _skb);
if (err < 0) {
kfree_skb(_skb);
set_bit(CONN_SAR_RETRY, &chan->conn_state);
return err;
}
clear_bit(CONN_SAR_RETRY, &chan->conn_state);
clear_bit(CONN_SAR_SDU, &chan->conn_state);
kfree_skb(chan->sdu);
......@@ -3228,22 +3219,26 @@ static int l2cap_ertm_reassembly_sdu(struct l2cap_chan *chan, struct sk_buff *sk
return 0;
}
static int l2cap_try_push_rx_skb(struct l2cap_chan *chan)
static void l2cap_ertm_enter_local_busy(struct l2cap_chan *chan)
{
struct sk_buff *skb;
u16 control;
int err;
while ((skb = skb_dequeue(&chan->busy_q))) {
control = bt_cb(skb)->sar << L2CAP_CTRL_SAR_SHIFT;
err = l2cap_ertm_reassembly_sdu(chan, skb, control);
if (err < 0) {
skb_queue_head(&chan->busy_q, skb);
return -EBUSY;
}
BT_DBG("chan %p, Enter local busy", chan);
chan->buffer_seq = (chan->buffer_seq + 1) % 64;
}
set_bit(CONN_LOCAL_BUSY, &chan->conn_state);
control = chan->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
control |= L2CAP_SUPER_RCV_NOT_READY;
l2cap_send_sframe(chan, control);
set_bit(CONN_RNR_SENT, &chan->conn_state);
__clear_ack_timer(chan);
}
static void l2cap_ertm_exit_local_busy(struct l2cap_chan *chan)
{
u16 control;
if (!test_bit(CONN_RNR_SENT, &chan->conn_state))
goto done;
......@@ -3263,93 +3258,16 @@ static int l2cap_try_push_rx_skb(struct l2cap_chan *chan)
clear_bit(CONN_RNR_SENT, &chan->conn_state);
BT_DBG("chan %p, Exit local busy", chan);
return 0;
}
static void l2cap_busy_work(struct work_struct *work)
void l2cap_chan_busy(struct l2cap_chan *chan, int busy)
{
DECLARE_WAITQUEUE(wait, current);
struct l2cap_chan *chan =
container_of(work, struct l2cap_chan, busy_work);
struct sock *sk = chan->sk;
int n_tries = 0, timeo = HZ/5, err;
struct sk_buff *skb;
lock_sock(sk);
add_wait_queue(sk_sleep(sk), &wait);
while ((skb = skb_peek(&chan->busy_q))) {
set_current_state(TASK_INTERRUPTIBLE);
if (n_tries++ > L2CAP_LOCAL_BUSY_TRIES) {
err = -EBUSY;
l2cap_send_disconn_req(chan->conn, chan, EBUSY);
break;
}
if (!timeo)
timeo = HZ/5;
if (signal_pending(current)) {
err = sock_intr_errno(timeo);
break;
}
release_sock(sk);
timeo = schedule_timeout(timeo);
lock_sock(sk);
err = sock_error(sk);
if (err)
break;
if (l2cap_try_push_rx_skb(chan) == 0)
break;
}
set_current_state(TASK_RUNNING);
remove_wait_queue(sk_sleep(sk), &wait);
release_sock(sk);
}
static int l2cap_push_rx_skb(struct l2cap_chan *chan, struct sk_buff *skb, u16 control)
{
int sctrl, err;
if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
bt_cb(skb)->sar = control >> L2CAP_CTRL_SAR_SHIFT;
__skb_queue_tail(&chan->busy_q, skb);
return l2cap_try_push_rx_skb(chan);
}
err = l2cap_ertm_reassembly_sdu(chan, skb, control);
if (err >= 0) {
chan->buffer_seq = (chan->buffer_seq + 1) % 64;
return err;
if (chan->mode == L2CAP_MODE_ERTM) {
if (busy)
l2cap_ertm_enter_local_busy(chan);
else
l2cap_ertm_exit_local_busy(chan);
}
/* Busy Condition */
BT_DBG("chan %p, Enter local busy", chan);
set_bit(CONN_LOCAL_BUSY, &chan->conn_state);
bt_cb(skb)->sar = control >> L2CAP_CTRL_SAR_SHIFT;
__skb_queue_tail(&chan->busy_q, skb);
sctrl = chan->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
sctrl |= L2CAP_SUPER_RCV_NOT_READY;
l2cap_send_sframe(chan, sctrl);
set_bit(CONN_RNR_SENT, &chan->conn_state);
__clear_ack_timer(chan);
queue_work(_busy_wq, &chan->busy_work);
return err;
}
static int l2cap_streaming_reassembly_sdu(struct l2cap_chan *chan, struct sk_buff *skb, u16 control)
......@@ -3450,13 +3368,22 @@ static void l2cap_check_srej_gap(struct l2cap_chan *chan, u8 tx_seq)
struct sk_buff *skb;
u16 control;
while ((skb = skb_peek(&chan->srej_q))) {
while ((skb = skb_peek(&chan->srej_q)) &&
!test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
int err;
if (bt_cb(skb)->tx_seq != tx_seq)
break;
skb = skb_dequeue(&chan->srej_q);
control = bt_cb(skb)->sar << L2CAP_CTRL_SAR_SHIFT;
l2cap_ertm_reassembly_sdu(chan, skb, control);
err = l2cap_ertm_reassembly_sdu(chan, skb, control);
if (err < 0) {
l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
break;
}
chan->buffer_seq_srej =
(chan->buffer_seq_srej + 1) % 64;
tx_seq = (tx_seq + 1) % 64;
......@@ -3523,9 +3450,6 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont
chan->expected_ack_seq = req_seq;
l2cap_drop_acked_frames(chan);
if (tx_seq == chan->expected_tx_seq)
goto expected;
tx_seq_offset = (tx_seq - chan->buffer_seq) % 64;
if (tx_seq_offset < 0)
tx_seq_offset += 64;
......@@ -3539,6 +3463,9 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont
if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state))
goto drop;
if (tx_seq == chan->expected_tx_seq)
goto expected;
if (test_bit(CONN_SREJ_SENT, &chan->conn_state)) {
struct srej_list *first;
......@@ -3590,7 +3517,6 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont
chan->buffer_seq_srej = chan->buffer_seq;
__skb_queue_head_init(&chan->srej_q);
__skb_queue_head_init(&chan->busy_q);
l2cap_add_to_srej_queue(chan, skb, tx_seq, sar);
set_bit(CONN_SEND_PBIT, &chan->conn_state);
......@@ -3611,9 +3537,12 @@ static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_cont
return 0;
}
err = l2cap_push_rx_skb(chan, skb, rx_control);
if (err < 0)
return 0;
err = l2cap_ertm_reassembly_sdu(chan, skb, rx_control);
chan->buffer_seq = (chan->buffer_seq + 1) % 64;
if (err < 0) {
l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
return err;
}
if (rx_control & L2CAP_CTRL_FINAL) {
if (!test_and_clear_bit(CONN_REJ_ACT, &chan->conn_state))
......@@ -4108,7 +4037,7 @@ static int l2cap_connect_cfm(struct hci_conn *hcon, u8 status)
if (conn)
l2cap_conn_ready(conn);
} else
l2cap_conn_del(hcon, bt_err(status));
l2cap_conn_del(hcon, bt_to_errno(status));
return 0;
}
......@@ -4132,7 +4061,7 @@ static int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason)
if (!(hcon->type == ACL_LINK || hcon->type == LE_LINK))
return -EINVAL;
l2cap_conn_del(hcon, bt_err(reason));
l2cap_conn_del(hcon, bt_to_errno(reason));
return 0;
}
......@@ -4178,6 +4107,7 @@ static int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
chan->sec_level = hcon->sec_level;
del_timer(&conn->security_timer);
l2cap_chan_ready(sk);
smp_distribute_keys(conn, 0);
}
bh_unlock_sock(sk);
......@@ -4415,12 +4345,6 @@ int __init l2cap_init(void)
if (err < 0)
return err;
_busy_wq = create_singlethread_workqueue("l2cap");
if (!_busy_wq) {
err = -ENOMEM;
goto error;
}
err = hci_register_proto(&l2cap_hci_proto);
if (err < 0) {
BT_ERR("L2CAP protocol registration failed");
......@@ -4438,7 +4362,6 @@ int __init l2cap_init(void)
return 0;
error:
destroy_workqueue(_busy_wq);
l2cap_cleanup_sockets();
return err;
}
......@@ -4447,9 +4370,6 @@ void l2cap_exit(void)
{
debugfs_remove(l2cap_debugfs);
flush_workqueue(_busy_wq);
destroy_workqueue(_busy_wq);
if (hci_unregister_proto(&l2cap_hci_proto) < 0)
BT_ERR("L2CAP protocol unregistration failed");
......
net/bluetooth/l2cap_sock.c
View file @ 4b42c542
......@@ -422,8 +422,12 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, ch
break;
}
memset(&sec, 0, sizeof(sec));
sec.level = chan->sec_level;
if (sk->sk_state == BT_CONNECTED)
sec.key_size = chan->conn->hcon->enc_key_size;
len = min_t(unsigned int, len, sizeof(sec));
if (copy_to_user(optval, (char *) &sec, len))
err = -EFAULT;
......@@ -711,13 +715,15 @@ static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct ms
static int l2cap_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t len, int flags)
{
struct sock *sk = sock->sk;
struct l2cap_pinfo *pi = l2cap_pi(sk);
int err;
lock_sock(sk);
if (sk->sk_state == BT_CONNECT2 && bt_sk(sk)->defer_setup) {
sk->sk_state = BT_CONFIG;
__l2cap_connect_rsp_defer(l2cap_pi(sk)->chan);
__l2cap_connect_rsp_defer(pi->chan);
release_sock(sk);
return 0;
}
......@@ -725,9 +731,37 @@ static int l2cap_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct ms
release_sock(sk);
if (sock->type == SOCK_STREAM)
return bt_sock_stream_recvmsg(iocb, sock, msg, len, flags);
err = bt_sock_stream_recvmsg(iocb, sock, msg, len, flags);
else
err = bt_sock_recvmsg(iocb, sock, msg, len, flags);
if (pi->chan->mode != L2CAP_MODE_ERTM)
return err;
/* Attempt to put pending rx data in the socket buffer */
lock_sock(sk);
if (!test_bit(CONN_LOCAL_BUSY, &pi->chan->conn_state))
goto done;
if (pi->rx_busy_skb) {
if (!sock_queue_rcv_skb(sk, pi->rx_busy_skb))
pi->rx_busy_skb = NULL;
else
goto done;
}
return bt_sock_recvmsg(iocb, sock, msg, len, flags);
/* Restore data flow when half of the receive buffer is
* available. This avoids resending large numbers of
* frames.
*/
if (atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf >> 1)
l2cap_chan_busy(pi->chan, 0);
done:
release_sock(sk);
return err;
}
/* Kill socket (only if zapped and orphan)
......@@ -811,9 +845,31 @@ static struct l2cap_chan *l2cap_sock_new_connection_cb(void *data)
static int l2cap_sock_recv_cb(void *data, struct sk_buff *skb)
{
int err;
struct sock *sk = data;
struct l2cap_pinfo *pi = l2cap_pi(sk);
return sock_queue_rcv_skb(sk, skb);
if (pi->rx_busy_skb)
return -ENOMEM;
err = sock_queue_rcv_skb(sk, skb);
/* For ERTM, handle one skb that doesn't fit into the recv
* buffer. This is important to do because the data frames
* have already been acked, so the skb cannot be discarded.
*
* Notify the l2cap core that the buffer is full, so the
* LOCAL_BUSY state is entered and no more frames are
* acked and reassembled until there is buffer space
* available.
*/
if (err < 0 && pi->chan->mode == L2CAP_MODE_ERTM) {
pi->rx_busy_skb = skb;
l2cap_chan_busy(pi->chan, 1);
err = 0;
}
return err;
}
static void l2cap_sock_close_cb(void *data)
......@@ -842,6 +898,11 @@ static void l2cap_sock_destruct(struct sock *sk)
{
BT_DBG("sk %p", sk);
if (l2cap_pi(sk)->rx_busy_skb) {
kfree_skb(l2cap_pi(sk)->rx_busy_skb);
l2cap_pi(sk)->rx_busy_skb = NULL;
}
skb_queue_purge(&sk->sk_receive_queue);
skb_queue_purge(&sk->sk_write_queue);
}
......
net/bluetooth/lib.c
View file @ 4b42c542
......@@ -59,7 +59,7 @@ char *batostr(bdaddr_t *ba)
EXPORT_SYMBOL(batostr);
/* Bluetooth error codes to Unix errno mapping */
int bt_err(__u16 code)
int bt_to_errno(__u16 code)
{
switch (code) {
case 0:
......@@ -149,4 +149,23 @@ int bt_err(__u16 code)
return ENOSYS;
}
}
EXPORT_SYMBOL(bt_err);
EXPORT_SYMBOL(bt_to_errno);
int bt_printk(const char *level, const char *format, ...)
{
struct va_format vaf;
va_list args;
int r;
va_start(args, format);
vaf.fmt = format;
vaf.va = &args;
r = printk("%sBluetooth: %pV\n", level, &vaf);
va_end(args);
return r;
}
EXPORT_SYMBOL(bt_printk);
net/bluetooth/mgmt.c
View file @ 4b42c542
......@@ -179,7 +179,7 @@ static int read_controller_info(struct sock *sk, u16 index)
hci_del_off_timer(hdev);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
set_bit(HCI_MGMT, &hdev->flags);
......@@ -208,7 +208,7 @@ static int read_controller_info(struct sock *sk, u16 index)
memcpy(rp.name, hdev->dev_name, sizeof(hdev->dev_name));
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return cmd_complete(sk, index, MGMT_OP_READ_INFO, &rp, sizeof(rp));
......@@ -316,7 +316,7 @@ static int set_powered(struct sock *sk, u16 index, unsigned char *data, u16 len)
if (!hdev)
return cmd_status(sk, index, MGMT_OP_SET_POWERED, ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
up = test_bit(HCI_UP, &hdev->flags);
if ((cp->val && up) || (!cp->val && !up)) {
......@@ -343,7 +343,7 @@ static int set_powered(struct sock *sk, u16 index, unsigned char *data, u16 len)
err = 0;
failed:
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
}
......@@ -368,7 +368,7 @@ static int set_discoverable(struct sock *sk, u16 index, unsigned char *data,
if (!hdev)
return cmd_status(sk, index, MGMT_OP_SET_DISCOVERABLE, ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
if (!test_bit(HCI_UP, &hdev->flags)) {
err = cmd_status(sk, index, MGMT_OP_SET_DISCOVERABLE, ENETDOWN);
......@@ -403,7 +403,7 @@ static int set_discoverable(struct sock *sk, u16 index, unsigned char *data,
mgmt_pending_remove(cmd);
failed:
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
......@@ -429,7 +429,7 @@ static int set_connectable(struct sock *sk, u16 index, unsigned char *data,
if (!hdev)
return cmd_status(sk, index, MGMT_OP_SET_CONNECTABLE, ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
if (!test_bit(HCI_UP, &hdev->flags)) {
err = cmd_status(sk, index, MGMT_OP_SET_CONNECTABLE, ENETDOWN);
......@@ -463,7 +463,7 @@ static int set_connectable(struct sock *sk, u16 index, unsigned char *data,
mgmt_pending_remove(cmd);
failed:
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
......@@ -522,7 +522,7 @@ static int set_pairable(struct sock *sk, u16 index, unsigned char *data,
if (!hdev)
return cmd_status(sk, index, MGMT_OP_SET_PAIRABLE, ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
if (cp->val)
set_bit(HCI_PAIRABLE, &hdev->flags);
......@@ -538,7 +538,7 @@ static int set_pairable(struct sock *sk, u16 index, unsigned char *data,
err = mgmt_event(MGMT_EV_PAIRABLE, index, &ev, sizeof(ev), sk);
failed:
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
......@@ -739,7 +739,7 @@ static int add_uuid(struct sock *sk, u16 index, unsigned char *data, u16 len)
if (!hdev)
return cmd_status(sk, index, MGMT_OP_ADD_UUID, ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
uuid = kmalloc(sizeof(*uuid), GFP_ATOMIC);
if (!uuid) {
......@@ -763,7 +763,7 @@ static int add_uuid(struct sock *sk, u16 index, unsigned char *data, u16 len)
err = cmd_complete(sk, index, MGMT_OP_ADD_UUID, NULL, 0);
failed:
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
......@@ -788,7 +788,7 @@ static int remove_uuid(struct sock *sk, u16 index, unsigned char *data, u16 len)
if (!hdev)
return cmd_status(sk, index, MGMT_OP_REMOVE_UUID, ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
if (memcmp(cp->uuid, bt_uuid_any, 16) == 0) {
err = hci_uuids_clear(hdev);
......@@ -823,7 +823,7 @@ static int remove_uuid(struct sock *sk, u16 index, unsigned char *data, u16 len)
err = cmd_complete(sk, index, MGMT_OP_REMOVE_UUID, NULL, 0);
unlock:
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
......@@ -847,7 +847,7 @@ static int set_dev_class(struct sock *sk, u16 index, unsigned char *data,
if (!hdev)
return cmd_status(sk, index, MGMT_OP_SET_DEV_CLASS, ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
hdev->major_class = cp->major;
hdev->minor_class = cp->minor;
......@@ -857,7 +857,7 @@ static int set_dev_class(struct sock *sk, u16 index, unsigned char *data,
if (err == 0)
err = cmd_complete(sk, index, MGMT_OP_SET_DEV_CLASS, NULL, 0);
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
......@@ -879,7 +879,7 @@ static int set_service_cache(struct sock *sk, u16 index, unsigned char *data,
if (!hdev)
return cmd_status(sk, index, MGMT_OP_SET_SERVICE_CACHE, ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
BT_DBG("hci%u enable %d", index, cp->enable);
......@@ -897,7 +897,7 @@ static int set_service_cache(struct sock *sk, u16 index, unsigned char *data,
err = cmd_complete(sk, index, MGMT_OP_SET_SERVICE_CACHE, NULL,
0);
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
......@@ -908,7 +908,7 @@ static int load_keys(struct sock *sk, u16 index, unsigned char *data, u16 len)
struct hci_dev *hdev;
struct mgmt_cp_load_keys *cp;
u16 key_count, expected_len;
int i;
int i, err;
cp = (void *) data;
......@@ -918,9 +918,9 @@ static int load_keys(struct sock *sk, u16 index, unsigned char *data, u16 len)
key_count = get_unaligned_le16(&cp->key_count);
expected_len = sizeof(*cp) + key_count * sizeof(struct mgmt_key_info);
if (expected_len != len) {
BT_ERR("load_keys: expected %u bytes, got %u bytes",
len, expected_len);
if (expected_len > len) {
BT_ERR("load_keys: expected at least %u bytes, got %u bytes",
expected_len, len);
return -EINVAL;
}
......@@ -931,7 +931,7 @@ static int load_keys(struct sock *sk, u16 index, unsigned char *data, u16 len)
BT_DBG("hci%u debug_keys %u key_count %u", index, cp->debug_keys,
key_count);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
hci_link_keys_clear(hdev);
......@@ -942,17 +942,36 @@ static int load_keys(struct sock *sk, u16 index, unsigned char *data, u16 len)
else
clear_bit(HCI_DEBUG_KEYS, &hdev->flags);
for (i = 0; i < key_count; i++) {
struct mgmt_key_info *key = &cp->keys[i];
len -= sizeof(*cp);
i = 0;
while (i < len) {
struct mgmt_key_info *key = (void *) cp->keys + i;
i += sizeof(*key) + key->dlen;
if (key->type == HCI_LK_SMP_LTK) {
struct key_master_id *id = (void *) key->data;
if (key->dlen != sizeof(struct key_master_id))
continue;
hci_add_ltk(hdev, 0, &key->bdaddr, key->pin_len,
id->ediv, id->rand, key->val);
continue;
}
hci_add_link_key(hdev, NULL, 0, &key->bdaddr, key->val, key->type,
key->pin_len);
}
hci_dev_unlock(hdev);
err = cmd_complete(sk, index, MGMT_OP_LOAD_KEYS, NULL, 0);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return 0;
return err;
}
static int remove_key(struct sock *sk, u16 index, unsigned char *data, u16 len)
......@@ -971,7 +990,7 @@ static int remove_key(struct sock *sk, u16 index, unsigned char *data, u16 len)
if (!hdev)
return cmd_status(sk, index, MGMT_OP_REMOVE_KEY, ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
err = hci_remove_link_key(hdev, &cp->bdaddr);
if (err < 0) {
......@@ -994,7 +1013,7 @@ static int remove_key(struct sock *sk, u16 index, unsigned char *data, u16 len)
}
unlock:
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
......@@ -1020,7 +1039,7 @@ static int disconnect(struct sock *sk, u16 index, unsigned char *data, u16 len)
if (!hdev)
return cmd_status(sk, index, MGMT_OP_DISCONNECT, ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
if (!test_bit(HCI_UP, &hdev->flags)) {
err = cmd_status(sk, index, MGMT_OP_DISCONNECT, ENETDOWN);
......@@ -1055,7 +1074,7 @@ static int disconnect(struct sock *sk, u16 index, unsigned char *data, u16 len)
mgmt_pending_remove(cmd);
failed:
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
......@@ -1076,7 +1095,7 @@ static int get_connections(struct sock *sk, u16 index)
if (!hdev)
return cmd_status(sk, index, MGMT_OP_GET_CONNECTIONS, ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
count = 0;
list_for_each(p, &hdev->conn_hash.list) {
......@@ -1103,7 +1122,7 @@ static int get_connections(struct sock *sk, u16 index)
unlock:
kfree(rp);
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
}
......@@ -1149,7 +1168,7 @@ static int pin_code_reply(struct sock *sk, u16 index, unsigned char *data,
if (!hdev)
return cmd_status(sk, index, MGMT_OP_PIN_CODE_REPLY, ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
if (!test_bit(HCI_UP, &hdev->flags)) {
err = cmd_status(sk, index, MGMT_OP_PIN_CODE_REPLY, ENETDOWN);
......@@ -1190,7 +1209,7 @@ static int pin_code_reply(struct sock *sk, u16 index, unsigned char *data,
mgmt_pending_remove(cmd);
failed:
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
......@@ -1216,7 +1235,7 @@ static int pin_code_neg_reply(struct sock *sk, u16 index, unsigned char *data,
return cmd_status(sk, index, MGMT_OP_PIN_CODE_NEG_REPLY,
ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
if (!test_bit(HCI_UP, &hdev->flags)) {
err = cmd_status(sk, index, MGMT_OP_PIN_CODE_NEG_REPLY,
......@@ -1227,7 +1246,7 @@ static int pin_code_neg_reply(struct sock *sk, u16 index, unsigned char *data,
err = send_pin_code_neg_reply(sk, index, hdev, cp);
failed:
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
......@@ -1250,14 +1269,14 @@ static int set_io_capability(struct sock *sk, u16 index, unsigned char *data,
if (!hdev)
return cmd_status(sk, index, MGMT_OP_SET_IO_CAPABILITY, ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
hdev->io_capability = cp->io_capability;
BT_DBG("%s IO capability set to 0x%02x", hdev->name,
hdev->io_capability);
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return cmd_complete(sk, index, MGMT_OP_SET_IO_CAPABILITY, NULL, 0);
......@@ -1343,7 +1362,7 @@ static int pair_device(struct sock *sk, u16 index, unsigned char *data, u16 len)
if (!hdev)
return cmd_status(sk, index, MGMT_OP_PAIR_DEVICE, ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
if (cp->io_cap == 0x03) {
sec_level = BT_SECURITY_MEDIUM;
......@@ -1385,7 +1404,7 @@ static int pair_device(struct sock *sk, u16 index, unsigned char *data, u16 len)
err = 0;
unlock:
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
......@@ -1417,7 +1436,7 @@ static int user_confirm_reply(struct sock *sk, u16 index, unsigned char *data,
if (!hdev)
return cmd_status(sk, index, mgmt_op, ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
if (!test_bit(HCI_UP, &hdev->flags)) {
err = cmd_status(sk, index, mgmt_op, ENETDOWN);
......@@ -1435,7 +1454,7 @@ static int user_confirm_reply(struct sock *sk, u16 index, unsigned char *data,
mgmt_pending_remove(cmd);
failed:
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
......@@ -1459,7 +1478,7 @@ static int set_local_name(struct sock *sk, u16 index, unsigned char *data,
if (!hdev)
return cmd_status(sk, index, MGMT_OP_SET_LOCAL_NAME, ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
cmd = mgmt_pending_add(sk, MGMT_OP_SET_LOCAL_NAME, index, data, len);
if (!cmd) {
......@@ -1474,7 +1493,7 @@ static int set_local_name(struct sock *sk, u16 index, unsigned char *data,
mgmt_pending_remove(cmd);
failed:
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
......@@ -1493,7 +1512,7 @@ static int read_local_oob_data(struct sock *sk, u16 index)
return cmd_status(sk, index, MGMT_OP_READ_LOCAL_OOB_DATA,
ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
if (!test_bit(HCI_UP, &hdev->flags)) {
err = cmd_status(sk, index, MGMT_OP_READ_LOCAL_OOB_DATA,
......@@ -1523,7 +1542,7 @@ static int read_local_oob_data(struct sock *sk, u16 index)
mgmt_pending_remove(cmd);
unlock:
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
......@@ -1547,7 +1566,7 @@ static int add_remote_oob_data(struct sock *sk, u16 index, unsigned char *data,
return cmd_status(sk, index, MGMT_OP_ADD_REMOTE_OOB_DATA,
ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
err = hci_add_remote_oob_data(hdev, &cp->bdaddr, cp->hash,
cp->randomizer);
......@@ -1557,7 +1576,7 @@ static int add_remote_oob_data(struct sock *sk, u16 index, unsigned char *data,
err = cmd_complete(sk, index, MGMT_OP_ADD_REMOTE_OOB_DATA, NULL,
0);
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
......@@ -1581,7 +1600,7 @@ static int remove_remote_oob_data(struct sock *sk, u16 index,
return cmd_status(sk, index, MGMT_OP_REMOVE_REMOTE_OOB_DATA,
ENODEV);
hci_dev_lock(hdev);
hci_dev_lock_bh(hdev);
err = hci_remove_remote_oob_data(hdev, &cp->bdaddr);
if (err < 0)
......@@ -1591,7 +1610,7 @@ static int remove_remote_oob_data(struct sock *sk, u16 index,
err = cmd_complete(sk, index, MGMT_OP_REMOVE_REMOTE_OOB_DATA,
NULL, 0);
hci_dev_unlock(hdev);
hci_dev_unlock_bh(hdev);
hci_dev_put(hdev);
return err;
......@@ -1958,17 +1977,28 @@ int mgmt_connectable(u16 index, u8 connectable)
int mgmt_new_key(u16 index, struct link_key *key, u8 persistent)
{
struct mgmt_ev_new_key ev;
struct mgmt_ev_new_key *ev;
int err, total;
memset(&ev, 0, sizeof(ev));
total = sizeof(struct mgmt_ev_new_key) + key->dlen;
ev = kzalloc(total, GFP_ATOMIC);
if (!ev)
return -ENOMEM;
ev.store_hint = persistent;
bacpy(&ev.key.bdaddr, &key->bdaddr);
ev.key.type = key->type;
memcpy(ev.key.val, key->val, 16);
ev.key.pin_len = key->pin_len;
bacpy(&ev->key.bdaddr, &key->bdaddr);
ev->key.type = key->type;
memcpy(ev->key.val, key->val, 16);
ev->key.pin_len = key->pin_len;
ev->key.dlen = key->dlen;
ev->store_hint = persistent;
return mgmt_event(MGMT_EV_NEW_KEY, index, &ev, sizeof(ev), NULL);
memcpy(ev->key.data, key->data, key->dlen);
err = mgmt_event(MGMT_EV_NEW_KEY, index, ev, total, NULL);
kfree(ev);
return err;
}
int mgmt_connected(u16 index, bdaddr_t *bdaddr)
......
net/bluetooth/sco.c
View file @ 4b42c542
......@@ -932,7 +932,7 @@ static int sco_connect_cfm(struct hci_conn *hcon, __u8 status)
if (conn)
sco_conn_ready(conn);
} else
sco_conn_del(hcon, bt_err(status));
sco_conn_del(hcon, bt_to_errno(status));
return 0;
}
......@@ -944,7 +944,7 @@ static int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason)
if (hcon->type != SCO_LINK && hcon->type != ESCO_LINK)
return -EINVAL;
sco_conn_del(hcon, bt_err(reason));
sco_conn_del(hcon, bt_to_errno(reason));
return 0;
}
......
net/bluetooth/smp.c
View file @ 4b42c542
......@@ -197,14 +197,34 @@ static __u8 seclevel_to_authreq(__u8 level)
}
static void build_pairing_cmd(struct l2cap_conn *conn,
struct smp_cmd_pairing *cmd, __u8 authreq)
struct smp_cmd_pairing *req,
struct smp_cmd_pairing *rsp,
__u8 authreq)
{
cmd->io_capability = conn->hcon->io_capability;
cmd->oob_flag = SMP_OOB_NOT_PRESENT;
cmd->max_key_size = SMP_MAX_ENC_KEY_SIZE;
cmd->init_key_dist = 0x00;
cmd->resp_key_dist = 0x00;
cmd->auth_req = authreq;
u8 dist_keys;
dist_keys = 0;
if (test_bit(HCI_PAIRABLE, &conn->hcon->hdev->flags)) {
dist_keys = SMP_DIST_ENC_KEY | SMP_DIST_ID_KEY | SMP_DIST_SIGN;
authreq |= SMP_AUTH_BONDING;
}
if (rsp == NULL) {
req->io_capability = conn->hcon->io_capability;
req->oob_flag = SMP_OOB_NOT_PRESENT;
req->max_key_size = SMP_MAX_ENC_KEY_SIZE;
req->init_key_dist = dist_keys;
req->resp_key_dist = dist_keys;
req->auth_req = authreq;
return;
}
rsp->io_capability = conn->hcon->io_capability;
rsp->oob_flag = SMP_OOB_NOT_PRESENT;
rsp->max_key_size = SMP_MAX_ENC_KEY_SIZE;
rsp->init_key_dist = req->init_key_dist & dist_keys;
rsp->resp_key_dist = req->resp_key_dist & dist_keys;
rsp->auth_req = authreq;
}
static u8 check_enc_key_size(struct l2cap_conn *conn, __u8 max_key_size)
......@@ -233,7 +253,7 @@ static u8 smp_cmd_pairing_req(struct l2cap_conn *conn, struct sk_buff *skb)
return SMP_OOB_NOT_AVAIL;
/* We didn't start the pairing, so no requirements */
build_pairing_cmd(conn, &rsp, SMP_AUTH_NONE);
build_pairing_cmd(conn, req, &rsp, SMP_AUTH_NONE);
key_size = min(req->max_key_size, rsp.max_key_size);
if (check_enc_key_size(conn, key_size))
......@@ -347,8 +367,6 @@ static u8 smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb)
swap128(skb->data, random);
skb_pull(skb, sizeof(random));
memset(hcon->ltk, 0, sizeof(hcon->ltk));
if (conn->hcon->out)
ret = smp_c1(tfm, conn->tk, random, conn->preq, conn->prsp, 0,
conn->src, conn->hcon->dst_type, conn->dst,
......@@ -370,29 +388,38 @@ static u8 smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb)
}
if (conn->hcon->out) {
u8 stk[16], rand[8];
__le16 ediv;
u8 rand[8];
memset(rand, 0, sizeof(rand));
ediv = 0;
smp_s1(tfm, conn->tk, random, conn->prnd, key);
swap128(key, hcon->ltk);
swap128(key, stk);
memset(hcon->ltk + conn->smp_key_size, 0,
memset(stk + conn->smp_key_size, 0,
SMP_MAX_ENC_KEY_SIZE - conn->smp_key_size);
hci_le_start_enc(hcon, ediv, rand, stk);
hcon->enc_key_size = conn->smp_key_size;
} else {
u8 stk[16], r[16], rand[8];
__le16 ediv;
memset(rand, 0, sizeof(rand));
ediv = 0;
hci_le_start_enc(hcon, ediv, rand, hcon->ltk);
} else {
u8 r[16];
swap128(conn->prnd, r);
smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM, sizeof(r), r);
smp_s1(tfm, conn->tk, conn->prnd, random, key);
swap128(key, hcon->ltk);
swap128(key, stk);
memset(hcon->ltk + conn->smp_key_size, 0,
memset(stk + conn->smp_key_size, 0,
SMP_MAX_ENC_KEY_SIZE - conn->smp_key_size);
hci_add_ltk(conn->hcon->hdev, 0, conn->dst, conn->smp_key_size,
ediv, rand, stk);
}
return 0;
......@@ -412,7 +439,7 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb)
skb_pull(skb, sizeof(*rp));
memset(&cp, 0, sizeof(cp));
build_pairing_cmd(conn, &cp, rp->auth_req);
build_pairing_cmd(conn, &cp, NULL, rp->auth_req);
conn->preq[0] = SMP_CMD_PAIRING_REQ;
memcpy(&conn->preq[1], &cp, sizeof(cp));
......@@ -434,6 +461,9 @@ int smp_conn_security(struct l2cap_conn *conn, __u8 sec_level)
BT_DBG("conn %p hcon %p level 0x%2.2x", conn, hcon, sec_level);
if (!lmp_host_le_capable(hcon->hdev))
return 1;
if (IS_ERR(hcon->hdev->tfm))
return 1;
......@@ -450,8 +480,21 @@ int smp_conn_security(struct l2cap_conn *conn, __u8 sec_level)
if (hcon->link_mode & HCI_LM_MASTER) {
struct smp_cmd_pairing cp;
struct link_key *key;
build_pairing_cmd(conn, &cp, authreq);
key = hci_find_link_key_type(hcon->hdev, conn->dst,
HCI_LK_SMP_LTK);
if (key) {
struct key_master_id *master = (void *) key->data;
hci_le_start_enc(hcon, master->ediv, master->rand,
key->val);
hcon->enc_key_size = key->pin_len;
goto done;
}
build_pairing_cmd(conn, &cp, NULL, authreq);
conn->preq[0] = SMP_CMD_PAIRING_REQ;
memcpy(&conn->preq[1], &cp, sizeof(cp));
......@@ -465,18 +508,50 @@ int smp_conn_security(struct l2cap_conn *conn, __u8 sec_level)
smp_send_cmd(conn, SMP_CMD_SECURITY_REQ, sizeof(cp), &cp);
}
done:
hcon->pending_sec_level = sec_level;
set_bit(HCI_CONN_ENCRYPT_PEND, &hcon->pend);
return 0;
}
static int smp_cmd_encrypt_info(struct l2cap_conn *conn, struct sk_buff *skb)
{
struct smp_cmd_encrypt_info *rp = (void *) skb->data;
skb_pull(skb, sizeof(*rp));
memcpy(conn->tk, rp->ltk, sizeof(conn->tk));
return 0;
}
static int smp_cmd_master_ident(struct l2cap_conn *conn, struct sk_buff *skb)
{
struct smp_cmd_master_ident *rp = (void *) skb->data;
skb_pull(skb, sizeof(*rp));
hci_add_ltk(conn->hcon->hdev, 1, conn->src, conn->smp_key_size,
rp->ediv, rp->rand, conn->tk);
smp_distribute_keys(conn, 1);
return 0;
}
int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb)
{
__u8 code = skb->data[0];
__u8 reason;
int err = 0;
if (!lmp_host_le_capable(conn->hcon->hdev)) {
err = -ENOTSUPP;
reason = SMP_PAIRING_NOTSUPP;
goto done;
}
if (IS_ERR(conn->hcon->hdev->tfm)) {
err = PTR_ERR(conn->hcon->hdev->tfm);
reason = SMP_PAIRING_NOTSUPP;
......@@ -512,10 +587,20 @@ int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb)
break;
case SMP_CMD_ENCRYPT_INFO:
reason = smp_cmd_encrypt_info(conn, skb);
break;
case SMP_CMD_MASTER_IDENT:
reason = smp_cmd_master_ident(conn, skb);
break;
case SMP_CMD_IDENT_INFO:
case SMP_CMD_IDENT_ADDR_INFO:
case SMP_CMD_SIGN_INFO:
/* Just ignored */
reason = 0;
break;
default:
BT_DBG("Unknown command code 0x%2.2x", code);
......@@ -532,3 +617,86 @@ int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb)
kfree_skb(skb);
return err;
}
int smp_distribute_keys(struct l2cap_conn *conn, __u8 force)
{
struct smp_cmd_pairing *req, *rsp;
__u8 *keydist;
BT_DBG("conn %p force %d", conn, force);
if (IS_ERR(conn->hcon->hdev->tfm))
return PTR_ERR(conn->hcon->hdev->tfm);
rsp = (void *) &conn->prsp[1];
/* The responder sends its keys first */
if (!force && conn->hcon->out && (rsp->resp_key_dist & 0x07))
return 0;
req = (void *) &conn->preq[1];
if (conn->hcon->out) {
keydist = &rsp->init_key_dist;
*keydist &= req->init_key_dist;
} else {
keydist = &rsp->resp_key_dist;
*keydist &= req->resp_key_dist;
}
BT_DBG("keydist 0x%x", *keydist);
if (*keydist & SMP_DIST_ENC_KEY) {
struct smp_cmd_encrypt_info enc;
struct smp_cmd_master_ident ident;
__le16 ediv;
get_random_bytes(enc.ltk, sizeof(enc.ltk));
get_random_bytes(&ediv, sizeof(ediv));
get_random_bytes(ident.rand, sizeof(ident.rand));
smp_send_cmd(conn, SMP_CMD_ENCRYPT_INFO, sizeof(enc), &enc);
hci_add_ltk(conn->hcon->hdev, 1, conn->dst, conn->smp_key_size,
ediv, ident.rand, enc.ltk);
ident.ediv = cpu_to_le16(ediv);
smp_send_cmd(conn, SMP_CMD_MASTER_IDENT, sizeof(ident), &ident);
*keydist &= ~SMP_DIST_ENC_KEY;
}
if (*keydist & SMP_DIST_ID_KEY) {
struct smp_cmd_ident_addr_info addrinfo;
struct smp_cmd_ident_info idinfo;
/* Send a dummy key */
get_random_bytes(idinfo.irk, sizeof(idinfo.irk));
smp_send_cmd(conn, SMP_CMD_IDENT_INFO, sizeof(idinfo), &idinfo);
/* Just public address */
memset(&addrinfo, 0, sizeof(addrinfo));
bacpy(&addrinfo.bdaddr, conn->src);
smp_send_cmd(conn, SMP_CMD_IDENT_ADDR_INFO, sizeof(addrinfo),
&addrinfo);
*keydist &= ~SMP_DIST_ID_KEY;
}
if (*keydist & SMP_DIST_SIGN) {
struct smp_cmd_sign_info sign;
/* Send a dummy key */
get_random_bytes(sign.csrk, sizeof(sign.csrk));
smp_send_cmd(conn, SMP_CMD_SIGN_INFO, sizeof(sign), &sign);
*keydist &= ~SMP_DIST_SIGN;
}
return 0;
}
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