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Commit 064f370c authored by Thierry Escande's avatar Thierry Escande Committed by Samuel Ortiz
Browse files

NFC: llcp: Add support in getsockopt for RW, LTO, and MIU remote parameters 



Useful for LLCP validation tests.

Signed-off-by: default avatarThierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent abd18d43

include/uapi/linux/nfc.h

+5 −2
Original line number Diff line number Diff line
@@ -235,5 +235,8 @@ struct sockaddr_nfc_llcp { 
/* socket option names */

#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 */

net/nfc/llcp/sock.c

+22 −1
Original line number Diff line number Diff line
@@ -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;