static int smp_cmd_master_ident(struct l2cap_conn *conn, struct sk_buff *skb)
{
struct smp_cmd_master_ident *rp = (void *) skb->data;
struct smp_cmd_pairing *paircmd = (void *) &conn->prsp[1];
struct link_key *key;
struct key_master_id *id;
u8 keydist = paircmd->init_key_dist;
skb_pull(skb, sizeof(*rp));
key = hci_find_link_key_type(conn->hcon->hdev, conn->dst, KEY_TYPE_LTK);
if (key == NULL)
return SMP_UNSPECIFIED;
BT_DBG("keydist 0x%x", keydist);
id = (void *) key->data;
id->ediv = rp->ediv;
memcpy(id->rand, rp->rand, sizeof(rp->rand));
hci_add_ltk(conn->hcon->hdev, 1, conn->src, conn->smp_key_size,
rp->ediv, rp->rand, key->val);
smp_distribute_keys(conn, 1);
return 0;
}
static int smp_cmd_master_ident(struct l2cap_conn *conn, struct sk_buff *skb)
{
struct hci_conn *hcon = conn->hcon;
struct smp_cmd_master_ident *rp = (void *) skb->data;
struct smp_cmd_pairing *paircmd = (void *) &hcon->prsp[1];
struct link_key *key;
u8 *keydist;
skb_pull(skb, sizeof(*rp));
key = hci_find_link_key_type(hcon->hdev, conn->dst, KEY_TYPE_LTK);
if (key == NULL)
return SMP_UNSPECIFIED;
if (hcon->out)
keydist = &paircmd->resp_key_dist;
else
keydist = &paircmd->init_key_dist;
BT_DBG("keydist 0x%x", *keydist);
hci_add_ltk(hcon->hdev, 1, conn->dst, hcon->dst_type,
hcon->smp_key_size, hcon->auth, rp->ediv,
rp->rand, key->val);
*keydist &= ~SMP_DIST_ENC_KEY;
if (hcon->out) {
if (!(*keydist))
smp_distribute_keys(conn, 1);
}
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;
struct smp_chan *smp = conn->smp_chan;
struct hci_dev *hdev = conn->hcon->hdev;
struct hci_conn *hcon = conn->hcon;
struct smp_ltk *ltk;
u8 authenticated;
BT_DBG("conn %p", conn);
if (skb->len < sizeof(*rp))
return SMP_UNSPECIFIED;
/* Ignore this PDU if it wasn't requested */
if (!(smp->remote_key_dist & SMP_DIST_ENC_KEY))
return 0;
/* Mark the information as received */
smp->remote_key_dist &= ~SMP_DIST_ENC_KEY;
skb_pull(skb, sizeof(*rp));
hci_dev_lock(hdev);
authenticated = (hcon->sec_level == BT_SECURITY_HIGH);
ltk = hci_add_ltk(hdev, &hcon->dst, hcon->dst_type, HCI_SMP_LTK,
authenticated, smp->tk, smp->enc_key_size,
rp->ediv, rp->rand);
smp->ltk = ltk;
if (!(smp->remote_key_dist & SMP_DIST_ID_KEY))
smp_distribute_keys(conn);
hci_dev_unlock(hdev);
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;
}
static int smp_cmd_encrypt_info(struct l2cap_conn *conn, struct sk_buff *skb)
{
struct smp_cmd_encrypt_info *rp = (void *) skb->data;
u8 rand[8];
int err;
skb_pull(skb, sizeof(*rp));
BT_DBG("conn %p", conn);
memset(rand, 0, sizeof(rand));
err = hci_add_ltk(conn->hcon->hdev, 0, conn->dst, 0, 0, rand, rp->ltk);
if (err)
return SMP_UNSPECIFIED;
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;
struct smp_chan *smp = conn->smp_chan;
struct hci_dev *hdev = conn->hcon->hdev;
struct hci_conn *hcon = conn->hcon;
u8 authenticated;
skb_pull(skb, sizeof(*rp));
hci_dev_lock(hdev);
authenticated = (conn->hcon->sec_level == BT_SECURITY_HIGH);
hci_add_ltk(conn->hcon->hdev, conn->dst, hcon->dst_type,
HCI_SMP_LTK, 1, authenticated, smp->tk, smp->enc_key_size,
rp->ediv, rp->rand);
smp_distribute_keys(conn, 1);
hci_dev_unlock(hdev);
return 0;
}
int smp_distribute_keys(struct l2cap_conn *conn, __u8 force)
{
struct smp_cmd_pairing *req, *rsp;
struct smp_chan *smp = conn->smp_chan;
__u8 *keydist;
BT_DBG("conn %p force %d", conn, force);
if (!test_bit(HCI_CONN_LE_SMP_PEND, &conn->hcon->flags))
return 0;
rsp = (void *) &smp->prsp[1];
/* The responder sends its keys first */
if (!force && conn->hcon->out && (rsp->resp_key_dist & 0x07))
return 0;
req = (void *) &smp->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;
struct hci_conn *hcon = conn->hcon;
u8 authenticated;
__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);
authenticated = hcon->sec_level == BT_SECURITY_HIGH;
hci_add_ltk(conn->hcon->hdev, conn->dst, hcon->dst_type,
HCI_SMP_LTK_SLAVE, 1, authenticated,
enc.ltk, smp->enc_key_size, ediv, ident.rand);
ident.ediv = 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;
}
if (conn->hcon->out || force) {
clear_bit(HCI_CONN_LE_SMP_PEND, &conn->hcon->flags);
cancel_delayed_work_sync(&conn->security_timer);
smp_chan_destroy(conn);
}
return 0;
}
static void random_work(struct work_struct *work)
{
struct smp_chan *smp = container_of(work, struct smp_chan, random);
struct l2cap_conn *conn = smp->conn;
struct hci_conn *hcon = conn->hcon;
struct crypto_blkcipher *tfm = smp->tfm;
u8 reason, confirm[16], res[16], key[16];
int ret;
if (IS_ERR_OR_NULL(tfm)) {
reason = SMP_UNSPECIFIED;
goto error;
}
BT_DBG("conn %p %s", conn, conn->hcon->out ? "master" : "slave");
if (hcon->out)
ret = smp_c1(tfm, smp->tk, smp->rrnd, smp->preq, smp->prsp, 0,
conn->src, hcon->dst_type, conn->dst, res);
else
ret = smp_c1(tfm, smp->tk, smp->rrnd, smp->preq, smp->prsp,
hcon->dst_type, conn->dst, 0, conn->src, res);
if (ret) {
reason = SMP_UNSPECIFIED;
goto error;
}
swap128(res, confirm);
if (memcmp(smp->pcnf, confirm, sizeof(smp->pcnf)) != 0) {
BT_ERR("Pairing failed (confirmation values mismatch)");
reason = SMP_CONFIRM_FAILED;
goto error;
}
if (hcon->out) {
u8 stk[16], rand[8];
__le16 ediv;
memset(rand, 0, sizeof(rand));
ediv = 0;
smp_s1(tfm, smp->tk, smp->rrnd, smp->prnd, key);
swap128(key, stk);
memset(stk + smp->enc_key_size, 0,
SMP_MAX_ENC_KEY_SIZE - smp->enc_key_size);
if (test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &hcon->flags)) {
reason = SMP_UNSPECIFIED;
goto error;
}
hci_le_start_enc(hcon, ediv, rand, stk);
hcon->enc_key_size = smp->enc_key_size;
} else {
u8 stk[16], r[16], rand[8];
__le16 ediv;
memset(rand, 0, sizeof(rand));
ediv = 0;
swap128(smp->prnd, r);
smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM, sizeof(r), r);
smp_s1(tfm, smp->tk, smp->prnd, smp->rrnd, key);
swap128(key, stk);
memset(stk + smp->enc_key_size, 0,
SMP_MAX_ENC_KEY_SIZE - smp->enc_key_size);
hci_add_ltk(hcon->hdev, conn->dst, hcon->dst_type,
HCI_SMP_STK_SLAVE, 0, 0, stk, smp->enc_key_size,
ediv, rand);
}
return;
error:
smp_failure(conn, reason, 1);
}
static int smp_distribute_keys(struct l2cap_conn *conn, __u8 force)
{
struct hci_conn *hcon = conn->hcon;
struct smp_cmd_pairing *req, *rsp;
__u8 *keydist;
BT_DBG("conn %p force %d", conn, force);
if (IS_ERR(hcon->hdev->tfm))
return PTR_ERR(hcon->hdev->tfm);
rsp = (void *) &hcon->prsp[1];
if (!force && hcon->out && (rsp->resp_key_dist & 0x07))
return 0;
req = (void *) &hcon->preq[1];
if (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(hcon->hdev, 1, conn->dst, hcon->dst_type,
hcon->smp_key_size, hcon->auth, 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;
get_random_bytes(idinfo.irk, sizeof(idinfo.irk));
smp_send_cmd(conn, SMP_CMD_IDENT_INFO, sizeof(idinfo), &idinfo);
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;
get_random_bytes(sign.csrk, sizeof(sign.csrk));
smp_send_cmd(conn, SMP_CMD_SIGN_INFO, sizeof(sign), &sign);
*keydist &= ~SMP_DIST_SIGN;
}
if (hcon->out) {
if (hcon->disconn_cfm_cb)
hcon->disconn_cfm_cb(hcon, 0);
del_timer(&hcon->smp_timer);
clear_bit(HCI_CONN_ENCRYPT_PEND, &hcon->pend);
hci_conn_put(hcon);
} else if (rsp->resp_key_dist) {
if (hcon->disconn_cfm_cb)
hcon->disconn_cfm_cb(hcon, SMP_UNSPECIFIED);
clear_bit(HCI_CONN_ENCRYPT_PEND, &hcon->pend);
mgmt_auth_failed(hcon->hdev->id, conn->dst, SMP_UNSPECIFIED);
hci_conn_put(hcon);
}
return 0;
}
static u8 smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb)
{
struct hci_conn *hcon = conn->hcon;
struct crypto_blkcipher *tfm = hcon->hdev->tfm;
int ret;
u8 key[16], res[16], random[16], confirm[16];
swap128(skb->data, random);
skb_pull(skb, sizeof(random));
if (conn->hcon->out)
ret = smp_c1(tfm, hcon->tk, random, hcon->preq, hcon->prsp, 0,
conn->src, hcon->dst_type, conn->dst,
res);
else
ret = smp_c1(tfm, hcon->tk, random, hcon->preq, hcon->prsp,
hcon->dst_type, conn->dst, 0, conn->src,
res);
if (ret)
return SMP_UNSPECIFIED;
BT_DBG("conn %p %s", conn, conn->hcon->out ? "master" : "slave");
swap128(res, confirm);
if (memcmp(hcon->pcnf, confirm, sizeof(hcon->pcnf)) != 0) {
BT_ERR("Pairing failed (confirmation values mismatch)");
return SMP_CONFIRM_FAILED;
}
if (conn->hcon->out) {
u8 stk[16], rand[8];
__le16 ediv;
memset(rand, 0, sizeof(rand));
ediv = 0;
smp_s1(tfm, hcon->tk, random, hcon->prnd, key);
swap128(key, stk);
memset(stk + hcon->smp_key_size, 0,
SMP_MAX_ENC_KEY_SIZE - hcon->smp_key_size);
hci_le_start_enc(hcon, ediv, rand, stk);
hcon->enc_key_size = hcon->smp_key_size;
} else {
u8 stk[16], r[16], rand[8];
__le16 ediv;
memset(rand, 0, sizeof(rand));
ediv = 0;
swap128(hcon->prnd, r);
smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM, sizeof(r), r);
smp_s1(tfm, hcon->tk, hcon->prnd, random, key);
swap128(key, stk);
memset(stk + hcon->smp_key_size, 0,
SMP_MAX_ENC_KEY_SIZE - hcon->smp_key_size);
hci_add_ltk(conn->hcon->hdev, 0, conn->dst, hcon->dst_type,
hcon->smp_key_size, hcon->auth, ediv, rand, stk);
}
return 0;
}
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;
}
static void random_work(struct work_struct *work)
{
struct smp_chan *smp = container_of(work, struct smp_chan, random);
struct l2cap_conn *conn = smp->conn;
struct hci_conn *hcon = conn->hcon;
struct hci_dev *hdev = hcon->hdev;
struct crypto_blkcipher *tfm = hdev->tfm_aes;
u8 reason, confirm[16];
int ret;
if (IS_ERR_OR_NULL(tfm)) {
reason = SMP_UNSPECIFIED;
goto error;
}
BT_DBG("conn %p %s", conn, conn->hcon->out ? "master" : "slave");
/* Prevent mutual access to hdev->tfm_aes */
hci_dev_lock(hdev);
ret = smp_c1(tfm, smp->tk, smp->rrnd, smp->preq, smp->prsp,
hcon->init_addr_type, &hcon->init_addr,
hcon->resp_addr_type, &hcon->resp_addr, confirm);
hci_dev_unlock(hdev);
if (ret) {
reason = SMP_UNSPECIFIED;
goto error;
}
if (memcmp(smp->pcnf, confirm, sizeof(smp->pcnf)) != 0) {
BT_ERR("Pairing failed (confirmation values mismatch)");
reason = SMP_CONFIRM_FAILED;
goto error;
}
if (hcon->out) {
u8 stk[16];
__le64 rand = 0;
__le16 ediv = 0;
smp_s1(tfm, smp->tk, smp->rrnd, smp->prnd, stk);
memset(stk + smp->enc_key_size, 0,
SMP_MAX_ENC_KEY_SIZE - smp->enc_key_size);
if (test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &hcon->flags)) {
reason = SMP_UNSPECIFIED;
goto error;
}
hci_le_start_enc(hcon, ediv, rand, stk);
hcon->enc_key_size = smp->enc_key_size;
} else {
u8 stk[16], auth;
__le64 rand = 0;
__le16 ediv = 0;
smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM, sizeof(smp->prnd),
smp->prnd);
smp_s1(tfm, smp->tk, smp->prnd, smp->rrnd, stk);
memset(stk + smp->enc_key_size, 0,
SMP_MAX_ENC_KEY_SIZE - smp->enc_key_size);
if (hcon->pending_sec_level == BT_SECURITY_HIGH)
auth = 1;
else
auth = 0;
hci_add_ltk(hcon->hdev, &hcon->dst, hcon->dst_type,
HCI_SMP_STK_SLAVE, auth, stk, smp->enc_key_size,
ediv, rand);
}
return;
error:
smp_failure(conn, reason);
}
int smp_distribute_keys(struct l2cap_conn *conn)
{
struct smp_cmd_pairing *req, *rsp;
struct smp_chan *smp = conn->smp_chan;
struct hci_conn *hcon = conn->hcon;
struct hci_dev *hdev = hcon->hdev;
__u8 *keydist;
BT_DBG("conn %p", conn);
if (!test_bit(HCI_CONN_LE_SMP_PEND, &hcon->flags))
return 0;
rsp = (void *) &smp->prsp[1];
/* The responder sends its keys first */
if (hcon->out && (smp->remote_key_dist & 0x07))
return 0;
req = (void *) &smp->preq[1];
if (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;
struct smp_ltk *ltk;
u8 authenticated;
__le16 ediv;
__le64 rand;
get_random_bytes(enc.ltk, sizeof(enc.ltk));
get_random_bytes(&ediv, sizeof(ediv));
get_random_bytes(&rand, sizeof(rand));
smp_send_cmd(conn, SMP_CMD_ENCRYPT_INFO, sizeof(enc), &enc);
authenticated = hcon->sec_level == BT_SECURITY_HIGH;
ltk = hci_add_ltk(hdev, &hcon->dst, hcon->dst_type,
HCI_SMP_LTK_SLAVE, authenticated, enc.ltk,
smp->enc_key_size, ediv, rand);
smp->slave_ltk = ltk;
ident.ediv = ediv;
ident.rand = rand;
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;
memcpy(idinfo.irk, hdev->irk, sizeof(idinfo.irk));
smp_send_cmd(conn, SMP_CMD_IDENT_INFO, sizeof(idinfo), &idinfo);
/* The hci_conn contains the local identity address
* after the connection has been established.
*
* This is true even when the connection has been
* established using a resolvable random address.
*/
bacpy(&addrinfo.bdaddr, &hcon->src);
addrinfo.addr_type = hcon->src_type;
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;
struct smp_csrk *csrk;
/* Generate a new random key */
get_random_bytes(sign.csrk, sizeof(sign.csrk));
csrk = kzalloc(sizeof(*csrk), GFP_KERNEL);
if (csrk) {
csrk->master = 0x00;
memcpy(csrk->val, sign.csrk, sizeof(csrk->val));
}
smp->slave_csrk = csrk;
smp_send_cmd(conn, SMP_CMD_SIGN_INFO, sizeof(sign), &sign);
*keydist &= ~SMP_DIST_SIGN;
}
/* If there are still keys to be received wait for them */
if ((smp->remote_key_dist & 0x07))
return 0;
clear_bit(HCI_CONN_LE_SMP_PEND, &hcon->flags);
cancel_delayed_work_sync(&conn->security_timer);
set_bit(SMP_FLAG_COMPLETE, &smp->smp_flags);
smp_notify_keys(conn);
smp_chan_destroy(conn);
return 0;
}
