Bluetooth: move l2cap_sock_getsockopt() to l2cap_sock.c

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

1 files changed, 145 insertions, 0 deletions

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 1bbe8a06189b..b7d5ae9c6bdf 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -277,6 +277,151 @@ static int l2cap_sock_getname(struct socket *sock, struct sockaddr *addr, int *l
         return 0;
 }
 
+static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, int __user *optlen)
+{
+        struct sock *sk = sock->sk;
+        struct l2cap_options opts;
+        struct l2cap_conninfo cinfo;
+        int len, err = 0;
+        u32 opt;
+
+        BT_DBG("sk %p", sk);
+
+        if (get_user(len, optlen))
+                return -EFAULT;
+
+        lock_sock(sk);
+
+        switch (optname) {
+        case L2CAP_OPTIONS:
+                opts.imtu     = l2cap_pi(sk)->imtu;
+                opts.omtu     = l2cap_pi(sk)->omtu;
+                opts.flush_to = l2cap_pi(sk)->flush_to;
+                opts.mode     = l2cap_pi(sk)->mode;
+                opts.fcs      = l2cap_pi(sk)->fcs;
+                opts.max_tx   = l2cap_pi(sk)->max_tx;
+                opts.txwin_size = (__u16)l2cap_pi(sk)->tx_win;
+
+                len = min_t(unsigned int, len, sizeof(opts));
+                if (copy_to_user(optval, (char *) &opts, len))
+                        err = -EFAULT;
+
+                break;
+
+        case L2CAP_LM:
+                switch (l2cap_pi(sk)->sec_level) {
+                case BT_SECURITY_LOW:
+                        opt = L2CAP_LM_AUTH;
+                        break;
+                case BT_SECURITY_MEDIUM:
+                        opt = L2CAP_LM_AUTH | L2CAP_LM_ENCRYPT;
+                        break;
+                case BT_SECURITY_HIGH:
+                        opt = L2CAP_LM_AUTH | L2CAP_LM_ENCRYPT |
+                                                        L2CAP_LM_SECURE;
+                        break;
+                default:
+                        opt = 0;
+                        break;
+                }
+
+                if (l2cap_pi(sk)->role_switch)
+                        opt |= L2CAP_LM_MASTER;
+
+                if (l2cap_pi(sk)->force_reliable)
+                        opt |= L2CAP_LM_RELIABLE;
+
+                if (put_user(opt, (u32 __user *) optval))
+                        err = -EFAULT;
+                break;
+
+        case L2CAP_CONNINFO:
+                if (sk->sk_state != BT_CONNECTED &&
+                                        !(sk->sk_state == BT_CONNECT2 &&
+                                                bt_sk(sk)->defer_setup)) {
+                        err = -ENOTCONN;
+                        break;
+                }
+
+                cinfo.hci_handle = l2cap_pi(sk)->conn->hcon->handle;
+                memcpy(cinfo.dev_class, l2cap_pi(sk)->conn->hcon->dev_class, 3);
+
+                len = min_t(unsigned int, len, sizeof(cinfo));
+                if (copy_to_user(optval, (char *) &cinfo, len))
+                        err = -EFAULT;
+
+                break;
+
+        default:
+                err = -ENOPROTOOPT;
+                break;
+        }
+
+        release_sock(sk);
+        return err;
+}
+
+static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
+{
+        struct sock *sk = sock->sk;
+        struct bt_security sec;
+        int len, err = 0;
+
+        BT_DBG("sk %p", sk);
+
+        if (level == SOL_L2CAP)
+                return l2cap_sock_getsockopt_old(sock, optname, optval, optlen);
+
+        if (level != SOL_BLUETOOTH)
+                return -ENOPROTOOPT;
+
+        if (get_user(len, optlen))
+                return -EFAULT;
+
+        lock_sock(sk);
+
+        switch (optname) {
+        case BT_SECURITY:
+                if (sk->sk_type != SOCK_SEQPACKET && sk->sk_type != SOCK_STREAM
+                                && sk->sk_type != SOCK_RAW) {
+                        err = -EINVAL;
+                        break;
+                }
+
+                sec.level = l2cap_pi(sk)->sec_level;
+
+                len = min_t(unsigned int, len, sizeof(sec));
+                if (copy_to_user(optval, (char *) &sec, len))
+                        err = -EFAULT;
+
+                break;
+
+        case BT_DEFER_SETUP:
+                if (sk->sk_state != BT_BOUND && sk->sk_state != BT_LISTEN) {
+                        err = -EINVAL;
+                        break;
+                }
+
+                if (put_user(bt_sk(sk)->defer_setup, (u32 __user *) optval))
+                        err = -EFAULT;
+
+                break;
+
+        case BT_FLUSHABLE:
+                if (put_user(l2cap_pi(sk)->flushable, (u32 __user *) optval))
+                        err = -EFAULT;
+
+                break;
+
+        default:
+                err = -ENOPROTOOPT;
+                break;
+        }
+
+        release_sock(sk);
+        return err;
+}
+
 static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, char __user *optval, unsigned int optlen)
 {
         struct sock *sk = sock->sk;