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path: root/net/bluetooth/l2cap_sock.c
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Diffstat (limited to 'net/bluetooth/l2cap_sock.c')
-rw-r--r--net/bluetooth/l2cap_sock.c90
1 files changed, 68 insertions, 22 deletions
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 5c406d3136f7..e2e785c74630 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -334,7 +334,7 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __us
opts.mode = chan->mode;
opts.fcs = chan->fcs;
opts.max_tx = chan->max_tx;
- opts.txwin_size = (__u16)chan->tx_win;
+ opts.txwin_size = chan->tx_win;
len = min_t(unsigned int, len, sizeof(opts));
if (copy_to_user(optval, (char *) &opts, len))
@@ -359,10 +359,10 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __us
break;
}
- if (chan->role_switch)
+ if (test_bit(FLAG_ROLE_SWITCH, &chan->flags))
opt |= L2CAP_LM_MASTER;
- if (chan->force_reliable)
+ if (test_bit(FLAG_FORCE_RELIABLE, &chan->flags))
opt |= L2CAP_LM_RELIABLE;
if (put_user(opt, (u32 __user *) optval))
@@ -449,7 +449,8 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, ch
break;
case BT_FLUSHABLE:
- if (put_user(chan->flushable, (u32 __user *) optval))
+ if (put_user(test_bit(FLAG_FLUSHABLE, &chan->flags),
+ (u32 __user *) optval))
err = -EFAULT;
break;
@@ -461,7 +462,7 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, ch
break;
}
- pwr.force_active = chan->force_active;
+ pwr.force_active = test_bit(FLAG_FORCE_ACTIVE, &chan->flags);
len = min_t(unsigned int, len, sizeof(pwr));
if (copy_to_user(optval, (char *) &pwr, len))
@@ -469,6 +470,16 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, ch
break;
+ case BT_CHANNEL_POLICY:
+ if (!enable_hs) {
+ err = -ENOPROTOOPT;
+ break;
+ }
+
+ if (put_user(chan->chan_policy, (u32 __user *) optval))
+ err = -EFAULT;
+ break;
+
default:
err = -ENOPROTOOPT;
break;
@@ -503,7 +514,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
opts.mode = chan->mode;
opts.fcs = chan->fcs;
opts.max_tx = chan->max_tx;
- opts.txwin_size = (__u16)chan->tx_win;
+ opts.txwin_size = chan->tx_win;
len = min_t(unsigned int, sizeof(opts), optlen);
if (copy_from_user((char *) &opts, optval, len)) {
@@ -511,7 +522,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
break;
}
- if (opts.txwin_size > L2CAP_DEFAULT_TX_WINDOW) {
+ if (opts.txwin_size > L2CAP_DEFAULT_EXT_WINDOW) {
err = -EINVAL;
break;
}
@@ -535,7 +546,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
chan->omtu = opts.omtu;
chan->fcs = opts.fcs;
chan->max_tx = opts.max_tx;
- chan->tx_win = (__u8)opts.txwin_size;
+ chan->tx_win = opts.txwin_size;
break;
case L2CAP_LM:
@@ -551,8 +562,15 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __us
if (opt & L2CAP_LM_SECURE)
chan->sec_level = BT_SECURITY_HIGH;
- chan->role_switch = (opt & L2CAP_LM_MASTER);
- chan->force_reliable = (opt & L2CAP_LM_RELIABLE);
+ if (opt & L2CAP_LM_MASTER)
+ set_bit(FLAG_ROLE_SWITCH, &chan->flags);
+ else
+ clear_bit(FLAG_ROLE_SWITCH, &chan->flags);
+
+ if (opt & L2CAP_LM_RELIABLE)
+ set_bit(FLAG_FORCE_RELIABLE, &chan->flags);
+ else
+ clear_bit(FLAG_FORCE_RELIABLE, &chan->flags);
break;
default:
@@ -658,7 +676,10 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
}
}
- chan->flushable = opt;
+ if (opt)
+ set_bit(FLAG_FLUSHABLE, &chan->flags);
+ else
+ clear_bit(FLAG_FLUSHABLE, &chan->flags);
break;
case BT_POWER:
@@ -675,7 +696,36 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
err = -EFAULT;
break;
}
- chan->force_active = pwr.force_active;
+
+ if (pwr.force_active)
+ set_bit(FLAG_FORCE_ACTIVE, &chan->flags);
+ else
+ clear_bit(FLAG_FORCE_ACTIVE, &chan->flags);
+ break;
+
+ case BT_CHANNEL_POLICY:
+ if (!enable_hs) {
+ err = -ENOPROTOOPT;
+ break;
+ }
+
+ if (get_user(opt, (u32 __user *) optval)) {
+ err = -EFAULT;
+ break;
+ }
+
+ if (opt > BT_CHANNEL_POLICY_AMP_PREFERRED) {
+ err = -EINVAL;
+ break;
+ }
+
+ if (chan->mode != L2CAP_MODE_ERTM &&
+ chan->mode != L2CAP_MODE_STREAMING) {
+ err = -EOPNOTSUPP;
+ break;
+ }
+
+ chan->chan_policy = (u8) opt;
break;
default:
@@ -709,7 +759,7 @@ static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct ms
return -ENOTCONN;
}
- err = l2cap_chan_send(chan, msg, len);
+ err = l2cap_chan_send(chan, msg, len, sk->sk_priority);
release_sock(sk);
return err;
@@ -931,11 +981,9 @@ static void l2cap_sock_init(struct sock *sk, struct sock *parent)
chan->fcs = pchan->fcs;
chan->max_tx = pchan->max_tx;
chan->tx_win = pchan->tx_win;
+ chan->tx_win_max = pchan->tx_win_max;
chan->sec_level = pchan->sec_level;
- chan->role_switch = pchan->role_switch;
- chan->force_reliable = pchan->force_reliable;
- chan->flushable = pchan->flushable;
- chan->force_active = pchan->force_active;
+ chan->flags = pchan->flags;
security_sk_clone(parent, sk);
} else {
@@ -964,12 +1012,10 @@ static void l2cap_sock_init(struct sock *sk, struct sock *parent)
chan->max_tx = L2CAP_DEFAULT_MAX_TX;
chan->fcs = L2CAP_FCS_CRC16;
chan->tx_win = L2CAP_DEFAULT_TX_WINDOW;
+ chan->tx_win_max = L2CAP_DEFAULT_TX_WINDOW;
chan->sec_level = BT_SECURITY_LOW;
- chan->role_switch = 0;
- chan->force_reliable = 0;
- chan->flushable = BT_FLUSHABLE_OFF;
- chan->force_active = BT_POWER_FORCE_ACTIVE_ON;
-
+ chan->flags = 0;
+ set_bit(FLAG_FORCE_ACTIVE, &chan->flags);
}
/* Default config options */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.