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-rw-r--r--include/net/bluetooth/l2cap.h12
-rw-r--r--net/bluetooth/l2cap_core.c78
-rw-r--r--net/bluetooth/l2cap_sock.c52
3 files changed, 77 insertions, 65 deletions
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index f70935000345..684deee6ec52 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -284,6 +284,12 @@ struct srej_list {
struct l2cap_chan {
struct sock *sk;
+
+ __u8 sec_level;
+ __u8 role_switch;
+ __u8 force_reliable;
+ __u8 flushable;
+
__u8 ident;
__u8 conf_req[64];
@@ -371,10 +377,6 @@ struct l2cap_pinfo {
__u8 mode;
__u8 fcs;
- __u8 sec_level;
- __u8 role_switch;
- __u8 force_reliable;
- __u8 flushable;
__u8 tx_win;
__u8 max_tx;
@@ -452,7 +454,7 @@ struct sk_buff *l2cap_create_connless_pdu(struct sock *sk, struct msghdr *msg, s
struct sk_buff *l2cap_create_basic_pdu(struct sock *sk, struct msghdr *msg, size_t len);
struct sk_buff *l2cap_create_iframe_pdu(struct sock *sk, struct msghdr *msg, size_t len, u16 control, u16 sdulen);
int l2cap_sar_segment_sdu(struct l2cap_chan *chan, struct msghdr *msg, size_t len);
-void l2cap_do_send(struct sock *sk, struct sk_buff *skb);
+void l2cap_do_send(struct l2cap_chan *chan, struct sk_buff *skb);
void l2cap_streaming_send(struct l2cap_chan *chan);
int l2cap_ertm_send(struct l2cap_chan *chan);
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 29742d875e60..0fc6bbe85d41 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -262,10 +262,12 @@ free:
kfree(chan);
}
-static inline u8 l2cap_get_auth_type(struct sock *sk)
+static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan)
{
+ struct sock *sk = chan->sk;
+
if (sk->sk_type == SOCK_RAW) {
- switch (l2cap_pi(sk)->sec_level) {
+ switch (chan->sec_level) {
case BT_SECURITY_HIGH:
return HCI_AT_DEDICATED_BONDING_MITM;
case BT_SECURITY_MEDIUM:
@@ -274,15 +276,15 @@ static inline u8 l2cap_get_auth_type(struct sock *sk)
return HCI_AT_NO_BONDING;
}
} else if (l2cap_pi(sk)->psm == cpu_to_le16(0x0001)) {
- if (l2cap_pi(sk)->sec_level == BT_SECURITY_LOW)
- l2cap_pi(sk)->sec_level = BT_SECURITY_SDP;
+ if (chan->sec_level == BT_SECURITY_LOW)
+ chan->sec_level = BT_SECURITY_SDP;
- if (l2cap_pi(sk)->sec_level == BT_SECURITY_HIGH)
+ if (chan->sec_level == BT_SECURITY_HIGH)
return HCI_AT_NO_BONDING_MITM;
else
return HCI_AT_NO_BONDING;
} else {
- switch (l2cap_pi(sk)->sec_level) {
+ switch (chan->sec_level) {
case BT_SECURITY_HIGH:
return HCI_AT_GENERAL_BONDING_MITM;
case BT_SECURITY_MEDIUM:
@@ -294,15 +296,14 @@ static inline u8 l2cap_get_auth_type(struct sock *sk)
}
/* Service level security */
-static inline int l2cap_check_security(struct sock *sk)
+static inline int l2cap_check_security(struct l2cap_chan *chan)
{
- struct l2cap_conn *conn = l2cap_pi(sk)->conn;
+ struct l2cap_conn *conn = l2cap_pi(chan->sk)->conn;
__u8 auth_type;
- auth_type = l2cap_get_auth_type(sk);
+ auth_type = l2cap_get_auth_type(chan);
- return hci_conn_security(conn->hcon, l2cap_pi(sk)->sec_level,
- auth_type);
+ return hci_conn_security(conn->hcon, chan->sec_level, auth_type);
}
u8 l2cap_get_ident(struct l2cap_conn *conn)
@@ -425,7 +426,8 @@ static void l2cap_do_start(struct l2cap_chan *chan)
if (!(conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE))
return;
- if (l2cap_check_security(sk) && __l2cap_no_conn_pending(chan)) {
+ if (l2cap_check_security(chan) &&
+ __l2cap_no_conn_pending(chan)) {
struct l2cap_conn_req req;
req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
req.psm = l2cap_pi(sk)->psm;
@@ -515,7 +517,7 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
if (sk->sk_state == BT_CONNECT) {
struct l2cap_conn_req req;
- if (!l2cap_check_security(sk) ||
+ if (!l2cap_check_security(chan) ||
!__l2cap_no_conn_pending(chan)) {
bh_unlock_sock(sk);
continue;
@@ -549,7 +551,7 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
rsp.scid = cpu_to_le16(l2cap_pi(sk)->dcid);
rsp.dcid = cpu_to_le16(l2cap_pi(sk)->scid);
- if (l2cap_check_security(sk)) {
+ if (l2cap_check_security(chan)) {
if (bt_sk(sk)->defer_setup) {
struct sock *parent = bt_sk(sk)->parent;
rsp.result = cpu_to_le16(L2CAP_CR_PEND);
@@ -722,7 +724,7 @@ static void l2cap_conn_unreliable(struct l2cap_conn *conn, int err)
list_for_each_entry(chan, &conn->chan_l, list) {
struct sock *sk = chan->sk;
- if (l2cap_pi(sk)->force_reliable)
+ if (chan->force_reliable)
sk->sk_err = err;
}
@@ -867,14 +869,14 @@ int l2cap_chan_connect(struct l2cap_chan *chan)
hci_dev_lock_bh(hdev);
- auth_type = l2cap_get_auth_type(sk);
+ auth_type = l2cap_get_auth_type(chan);
if (l2cap_pi(sk)->dcid == L2CAP_CID_LE_DATA)
hcon = hci_connect(hdev, LE_LINK, dst,
- l2cap_pi(sk)->sec_level, auth_type);
+ chan->sec_level, auth_type);
else
hcon = hci_connect(hdev, ACL_LINK, dst,
- l2cap_pi(sk)->sec_level, auth_type);
+ chan->sec_level, auth_type);
if (IS_ERR(hcon)) {
err = PTR_ERR(hcon);
@@ -900,7 +902,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan)
if (sk->sk_type != SOCK_SEQPACKET &&
sk->sk_type != SOCK_STREAM) {
l2cap_sock_clear_timer(sk);
- if (l2cap_check_security(sk))
+ if (l2cap_check_security(chan))
sk->sk_state = BT_CONNECTED;
} else
l2cap_do_start(chan);
@@ -1002,15 +1004,15 @@ static void l2cap_drop_acked_frames(struct l2cap_chan *chan)
del_timer(&chan->retrans_timer);
}
-void l2cap_do_send(struct sock *sk, struct sk_buff *skb)
+void l2cap_do_send(struct l2cap_chan *chan, struct sk_buff *skb)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
- struct hci_conn *hcon = pi->conn->hcon;
+ struct sock *sk = chan->sk;
+ struct hci_conn *hcon = l2cap_pi(sk)->conn->hcon;
u16 flags;
- BT_DBG("sk %p, skb %p len %d", sk, skb, skb->len);
+ BT_DBG("chan %p, skb %p len %d", chan, skb, skb->len);
- if (!pi->flushable && lmp_no_flush_capable(hcon->hdev))
+ if (!chan->flushable && lmp_no_flush_capable(hcon->hdev))
flags = ACL_START_NO_FLUSH;
else
flags = ACL_START;
@@ -1035,7 +1037,7 @@ void l2cap_streaming_send(struct l2cap_chan *chan)
put_unaligned_le16(fcs, skb->data + skb->len - 2);
}
- l2cap_do_send(sk, skb);
+ l2cap_do_send(chan, skb);
chan->next_tx_seq = (chan->next_tx_seq + 1) % 64;
}
@@ -1087,7 +1089,7 @@ static void l2cap_retransmit_one_frame(struct l2cap_chan *chan, u8 tx_seq)
put_unaligned_le16(fcs, tx_skb->data + tx_skb->len - 2);
}
- l2cap_do_send(sk, tx_skb);
+ l2cap_do_send(chan, tx_skb);
}
int l2cap_ertm_send(struct l2cap_chan *chan)
@@ -1130,7 +1132,7 @@ int l2cap_ertm_send(struct l2cap_chan *chan)
put_unaligned_le16(fcs, skb->data + tx_skb->len - 2);
}
- l2cap_do_send(sk, tx_skb);
+ l2cap_do_send(chan, tx_skb);
__mod_retrans_timer();
@@ -2100,7 +2102,7 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
chan->ident = cmd->ident;
if (conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE) {
- if (l2cap_check_security(sk)) {
+ if (l2cap_check_security(chan)) {
if (bt_sk(sk)->defer_setup) {
sk->sk_state = BT_CONNECT2;
result = L2CAP_CR_PEND;
@@ -3805,17 +3807,19 @@ static int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
/* Find listening sockets and check their link_mode */
read_lock(&l2cap_sk_list.lock);
sk_for_each(sk, node, &l2cap_sk_list.head) {
+ struct l2cap_chan *chan = l2cap_pi(sk)->chan;
+
if (sk->sk_state != BT_LISTEN)
continue;
if (!bacmp(&bt_sk(sk)->src, &hdev->bdaddr)) {
lm1 |= HCI_LM_ACCEPT;
- if (l2cap_pi(sk)->role_switch)
+ if (chan->role_switch)
lm1 |= HCI_LM_MASTER;
exact++;
} else if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY)) {
lm2 |= HCI_LM_ACCEPT;
- if (l2cap_pi(sk)->role_switch)
+ if (chan->role_switch)
lm2 |= HCI_LM_MASTER;
}
}
@@ -3867,19 +3871,21 @@ static int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason)
return 0;
}
-static inline void l2cap_check_encryption(struct sock *sk, u8 encrypt)
+static inline void l2cap_check_encryption(struct l2cap_chan *chan, u8 encrypt)
{
+ struct sock *sk = chan->sk;
+
if (sk->sk_type != SOCK_SEQPACKET && sk->sk_type != SOCK_STREAM)
return;
if (encrypt == 0x00) {
- if (l2cap_pi(sk)->sec_level == BT_SECURITY_MEDIUM) {
+ if (chan->sec_level == BT_SECURITY_MEDIUM) {
l2cap_sock_clear_timer(sk);
l2cap_sock_set_timer(sk, HZ * 5);
- } else if (l2cap_pi(sk)->sec_level == BT_SECURITY_HIGH)
+ } else if (chan->sec_level == BT_SECURITY_HIGH)
__l2cap_sock_close(sk, ECONNREFUSED);
} else {
- if (l2cap_pi(sk)->sec_level == BT_SECURITY_MEDIUM)
+ if (chan->sec_level == BT_SECURITY_MEDIUM)
l2cap_sock_clear_timer(sk);
}
}
@@ -3908,7 +3914,7 @@ static int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
if (!status && (sk->sk_state == BT_CONNECTED ||
sk->sk_state == BT_CONFIG)) {
- l2cap_check_encryption(sk, encrypt);
+ l2cap_check_encryption(chan, encrypt);
bh_unlock_sock(sk);
continue;
}
@@ -4083,7 +4089,7 @@ static int l2cap_debugfs_show(struct seq_file *f, void *p)
batostr(&bt_sk(sk)->dst),
sk->sk_state, __le16_to_cpu(pi->psm),
pi->scid, pi->dcid,
- pi->imtu, pi->omtu, pi->sec_level,
+ pi->imtu, pi->omtu, pi->chan->sec_level,
pi->mode);
}
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 50437c665d1e..612955679b34 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -51,7 +51,7 @@ static void l2cap_sock_timeout(unsigned long arg)
if (sk->sk_state == BT_CONNECTED || sk->sk_state == BT_CONFIG)
reason = ECONNREFUSED;
else if (sk->sk_state == BT_CONNECT &&
- l2cap_pi(sk)->sec_level != BT_SECURITY_SDP)
+ l2cap_pi(sk)->chan->sec_level != BT_SECURITY_SDP)
reason = ECONNREFUSED;
else
reason = ETIMEDOUT;
@@ -91,6 +91,7 @@ found:
static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
{
struct sock *sk = sock->sk;
+ struct l2cap_chan *chan = l2cap_pi(sk)->chan;
struct sockaddr_l2 la;
int len, err = 0;
@@ -142,7 +143,7 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
if (__le16_to_cpu(la.l2_psm) == 0x0001 ||
__le16_to_cpu(la.l2_psm) == 0x0003)
- l2cap_pi(sk)->sec_level = BT_SECURITY_SDP;
+ chan->sec_level = BT_SECURITY_SDP;
}
if (la.l2_cid)
@@ -382,6 +383,7 @@ static int l2cap_sock_getname(struct socket *sock, struct sockaddr *addr, int *l
static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, int __user *optlen)
{
struct sock *sk = sock->sk;
+ struct l2cap_chan *chan = l2cap_pi(sk)->chan;
struct l2cap_options opts;
struct l2cap_conninfo cinfo;
int len, err = 0;
@@ -412,7 +414,7 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __us
break;
case L2CAP_LM:
- switch (l2cap_pi(sk)->sec_level) {
+ switch (chan->sec_level) {
case BT_SECURITY_LOW:
opt = L2CAP_LM_AUTH;
break;
@@ -428,10 +430,10 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __us
break;
}
- if (l2cap_pi(sk)->role_switch)
+ if (chan->role_switch)
opt |= L2CAP_LM_MASTER;
- if (l2cap_pi(sk)->force_reliable)
+ if (chan->force_reliable)
opt |= L2CAP_LM_RELIABLE;
if (put_user(opt, (u32 __user *) optval))
@@ -467,6 +469,7 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __us
static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
{
struct sock *sk = sock->sk;
+ struct l2cap_chan *chan = l2cap_pi(sk)->chan;
struct bt_security sec;
int len, err = 0;
@@ -491,7 +494,7 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, ch
break;
}
- sec.level = l2cap_pi(sk)->sec_level;
+ sec.level = chan->sec_level;
len = min_t(unsigned int, len, sizeof(sec));
if (copy_to_user(optval, (char *) &sec, len))
@@ -511,7 +514,7 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, ch
break;
case BT_FLUSHABLE:
- if (put_user(l2cap_pi(sk)->flushable, (u32 __user *) optval))
+ if (put_user(chan->flushable, (u32 __user *) optval))
err = -EFAULT;
break;
@@ -592,14 +595,14 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
}
if (opt & L2CAP_LM_AUTH)
- l2cap_pi(sk)->sec_level = BT_SECURITY_LOW;
+ chan->sec_level = BT_SECURITY_LOW;
if (opt & L2CAP_LM_ENCRYPT)
- l2cap_pi(sk)->sec_level = BT_SECURITY_MEDIUM;
+ chan->sec_level = BT_SECURITY_MEDIUM;
if (opt & L2CAP_LM_SECURE)
- l2cap_pi(sk)->sec_level = BT_SECURITY_HIGH;
+ chan->sec_level = BT_SECURITY_HIGH;
- l2cap_pi(sk)->role_switch = (opt & L2CAP_LM_MASTER);
- l2cap_pi(sk)->force_reliable = (opt & L2CAP_LM_RELIABLE);
+ chan->role_switch = (opt & L2CAP_LM_MASTER);
+ chan->force_reliable = (opt & L2CAP_LM_RELIABLE);
break;
default:
@@ -614,6 +617,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
+ struct l2cap_chan *chan = l2cap_pi(sk)->chan;
struct bt_security sec;
int len, err = 0;
u32 opt;
@@ -650,7 +654,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
break;
}
- l2cap_pi(sk)->sec_level = sec.level;
+ chan->sec_level = sec.level;
break;
case BT_DEFER_SETUP:
@@ -688,7 +692,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
}
}
- l2cap_pi(sk)->flushable = opt;
+ chan->flushable = opt;
break;
default:
@@ -730,7 +734,7 @@ static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct ms
if (IS_ERR(skb)) {
err = PTR_ERR(skb);
} else {
- l2cap_do_send(sk, skb);
+ l2cap_do_send(pi->chan, skb);
err = len;
}
goto done;
@@ -751,7 +755,7 @@ static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct ms
goto done;
}
- l2cap_do_send(sk, skb);
+ l2cap_do_send(pi->chan, skb);
err = len;
break;
@@ -997,10 +1001,10 @@ void l2cap_sock_init(struct sock *sk, struct sock *parent)
pi->fcs = l2cap_pi(parent)->fcs;
pi->max_tx = l2cap_pi(parent)->max_tx;
pi->tx_win = l2cap_pi(parent)->tx_win;
- pi->sec_level = l2cap_pi(parent)->sec_level;
- pi->role_switch = l2cap_pi(parent)->role_switch;
- pi->force_reliable = l2cap_pi(parent)->force_reliable;
- pi->flushable = l2cap_pi(parent)->flushable;
+ chan->sec_level = pchan->sec_level;
+ chan->role_switch = pchan->role_switch;
+ chan->force_reliable = pchan->force_reliable;
+ chan->flushable = pchan->flushable;
} else {
pi->imtu = L2CAP_DEFAULT_MTU;
pi->omtu = 0;
@@ -1013,10 +1017,10 @@ void l2cap_sock_init(struct sock *sk, struct sock *parent)
pi->max_tx = L2CAP_DEFAULT_MAX_TX;
pi->fcs = L2CAP_FCS_CRC16;
pi->tx_win = L2CAP_DEFAULT_TX_WINDOW;
- pi->sec_level = BT_SECURITY_LOW;
- pi->role_switch = 0;
- pi->force_reliable = 0;
- pi->flushable = BT_FLUSHABLE_OFF;
+ chan->sec_level = BT_SECURITY_LOW;
+ chan->role_switch = 0;
+ chan->force_reliable = 0;
+ chan->flushable = BT_FLUSHABLE_OFF;
}
/* Default config options */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 07:55:40 +0000