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-rw-r--r--include/uapi/linux/nfc.h7
-rw-r--r--net/nfc/llcp/sock.c23
2 files changed, 27 insertions, 3 deletions
diff --git a/include/uapi/linux/nfc.h b/include/uapi/linux/nfc.h
index 7440bc81a04b..7c6f627a717d 100644
--- a/include/uapi/linux/nfc.h
+++ b/include/uapi/linux/nfc.h
@@ -233,7 +233,10 @@ struct sockaddr_nfc_llcp {
#define NFC_LLCP_DIRECTION_TX 0x01
/* socket option names */
-#define NFC_LLCP_RW 0
-#define NFC_LLCP_MIUX 1
+#define NFC_LLCP_RW 0
+#define NFC_LLCP_MIUX 1
+#define NFC_LLCP_REMOTE_MIU 2
+#define NFC_LLCP_REMOTE_LTO 3
+#define NFC_LLCP_REMOTE_RW 4
#endif /*__LINUX_NFC_H */
diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c
index 641c535be3d4..fd01ac6e0bf4 100644
--- a/net/nfc/llcp/sock.c
+++ b/net/nfc/llcp/sock.c
@@ -303,7 +303,7 @@ static int nfc_llcp_getsockopt(struct socket *sock, int level, int optname,
struct sock *sk = sock->sk;
struct nfc_llcp_sock *llcp_sock = nfc_llcp_sock(sk);
int len, err = 0;
- u16 miux;
+ u16 miux, remote_miu;
u8 rw;
pr_debug("%p optname %d\n", sk, optname);
@@ -339,6 +339,27 @@ static int nfc_llcp_getsockopt(struct socket *sock, int level, int optname,
break;
+ case NFC_LLCP_REMOTE_MIU:
+ remote_miu = llcp_sock->remote_miu > LLCP_MAX_MIU ?
+ local->remote_miu : llcp_sock->remote_miu;
+
+ if (put_user(remote_miu, (u32 __user *) optval))
+ err = -EFAULT;
+
+ break;
+
+ case NFC_LLCP_REMOTE_LTO:
+ if (put_user(local->remote_lto / 10, (u32 __user *) optval))
+ err = -EFAULT;
+
+ break;
+
+ case NFC_LLCP_REMOTE_RW:
+ if (put_user(llcp_sock->remote_rw, (u32 __user *) optval))
+ err = -EFAULT;
+
+ break;
+
default:
err = -ENOPROTOOPT;
break;