Merge branch 'add-nci-suit-and-virtual-nci-device-driver'

Bongsu Jeon says:

====================
Add nci suit and virtual nci device driver

1/2 is the Virtual NCI device driver.
2/2 is the NCI selftest suite
====================

Link: https://lore.kernel.org/r/20210127130829.4026-1-bongsu.jeon@samsung.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

MAINTAINERS

@@ -12540,6 +12540,14 @@ F:	include/net/nfc/
 F:	include/uapi/linux/nfc.h
 F:	net/nfc/
 
+NFC VIRTUAL NCI DEVICE DRIVER
+M:	Bongsu Jeon <bongsu.jeon@samsung.com>
+L:	netdev@vger.kernel.org
+L:	linux-nfc@lists.01.org (moderated for non-subscribers)
+S:	Supported
+F:	drivers/nfc/virtual_ncidev.c
+F:	tools/testing/selftests/nci/
+
 NFS, SUNRPC, AND LOCKD CLIENTS
 M:	Trond Myklebust <trond.myklebust@hammerspace.com>
 M:	Anna Schumaker <anna.schumaker@netapp.com>

drivers/nfc/Kconfig

@@ -49,6 +49,17 @@ config NFC_PORT100
 
 	  If unsure, say N.
 
+config NFC_VIRTUAL_NCI
+	tristate "NCI device simulator driver"
+	depends on NFC_NCI
+	help
+	  NCI virtual device simulates a NCI device to the user.
+	  It can be used to validate the NCI module and applications.
+	  This driver supports communication between the virtual NCI device and
+	  module.
+
+	  If unsure, say N.
+
 source "drivers/nfc/fdp/Kconfig"
 source "drivers/nfc/pn544/Kconfig"
 source "drivers/nfc/pn533/Kconfig"

drivers/nfc/Makefile

@@ -17,3 +17,4 @@ obj-$(CONFIG_NFC_ST_NCI)	+= st-nci/
 obj-$(CONFIG_NFC_NXP_NCI)	+= nxp-nci/
 obj-$(CONFIG_NFC_S3FWRN5)	+= s3fwrn5/
 obj-$(CONFIG_NFC_ST95HF)	+= st95hf/
+obj-$(CONFIG_NFC_VIRTUAL_NCI)	+= virtual_ncidev.o

drivers/nfc/virtual_ncidev.c

+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Virtual NCI device simulation driver
+ *
+ * Copyright (C) 2020 Samsung Electrnoics
+ * Bongsu Jeon <bongsu.jeon@samsung.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/miscdevice.h>
+#include <linux/mutex.h>
+#include <net/nfc/nci_core.h>
+
+enum virtual_ncidev_mode {
+	virtual_ncidev_enabled,
+	virtual_ncidev_disabled,
+	virtual_ncidev_disabling,
+};
+
+#define IOCTL_GET_NCIDEV_IDX    0
+#define VIRTUAL_NFC_PROTOCOLS	(NFC_PROTO_JEWEL_MASK | \
+				 NFC_PROTO_MIFARE_MASK | \
+				 NFC_PROTO_FELICA_MASK | \
+				 NFC_PROTO_ISO14443_MASK | \
+				 NFC_PROTO_ISO14443_B_MASK | \
+				 NFC_PROTO_ISO15693_MASK)
+
+static enum virtual_ncidev_mode state;
+static struct miscdevice miscdev;
+static struct sk_buff *send_buff;
+static struct nci_dev *ndev;
+static DEFINE_MUTEX(nci_mutex);
+
+static int virtual_nci_open(struct nci_dev *ndev)
+{
+	return 0;
+}
+
+static int virtual_nci_close(struct nci_dev *ndev)
+{
+	mutex_lock(&nci_mutex);
+	kfree_skb(send_buff);
+	send_buff = NULL;
+	mutex_unlock(&nci_mutex);
+
+	return 0;
+}
+
+static int virtual_nci_send(struct nci_dev *ndev, struct sk_buff *skb)
+{
+	mutex_lock(&nci_mutex);
+	if (state != virtual_ncidev_enabled) {
+		mutex_unlock(&nci_mutex);
+		return 0;
+	}
+
+	if (send_buff) {
+		mutex_unlock(&nci_mutex);
+		return -1;
+	}
+	send_buff = skb_copy(skb, GFP_KERNEL);
+	mutex_unlock(&nci_mutex);
+
+	return 0;
+}
+
+static struct nci_ops virtual_nci_ops = {
+	.open = virtual_nci_open,
+	.close = virtual_nci_close,
+	.send = virtual_nci_send
+};
+
+static ssize_t virtual_ncidev_read(struct file *file, char __user *buf,
+				   size_t count, loff_t *ppos)
+{
+	size_t actual_len;
+
+	mutex_lock(&nci_mutex);
+	if (!send_buff) {
+		mutex_unlock(&nci_mutex);
+		return 0;
+	}
+
+	actual_len = min_t(size_t, count, send_buff->len);
+
+	if (copy_to_user(buf, send_buff->data, actual_len)) {
+		mutex_unlock(&nci_mutex);
+		return -EFAULT;
+	}
+
+	skb_pull(send_buff, actual_len);
+	if (send_buff->len == 0) {
+		consume_skb(send_buff);
+		send_buff = NULL;
+	}
+	mutex_unlock(&nci_mutex);
+
+	return actual_len;
+}
+
+static ssize_t virtual_ncidev_write(struct file *file,
+				    const char __user *buf,
+				    size_t count, loff_t *ppos)
+{
+	struct sk_buff *skb;
+
+	skb = alloc_skb(count, GFP_KERNEL);
+	if (!skb)
+		return -ENOMEM;
+
+	if (copy_from_user(skb_put(skb, count), buf, count)) {
+		kfree_skb(skb);
+		return -EFAULT;
+	}
+
+	nci_recv_frame(ndev, skb);
+	return count;
+}
+
+static int virtual_ncidev_open(struct inode *inode, struct file *file)
+{
+	int ret = 0;
+
+	mutex_lock(&nci_mutex);
+	if (state != virtual_ncidev_disabled) {
+		mutex_unlock(&nci_mutex);
+		return -EBUSY;
+	}
+
+	ndev = nci_allocate_device(&virtual_nci_ops, VIRTUAL_NFC_PROTOCOLS,
+				   0, 0);
+	if (!ndev) {
+		mutex_unlock(&nci_mutex);
+		return -ENOMEM;
+	}
+
+	ret = nci_register_device(ndev);
+	if (ret < 0) {
+		nci_free_device(ndev);
+		mutex_unlock(&nci_mutex);
+		return ret;
+	}
+	state = virtual_ncidev_enabled;
+	mutex_unlock(&nci_mutex);
+
+	return 0;
+}
+
+static int virtual_ncidev_close(struct inode *inode, struct file *file)
+{
+	mutex_lock(&nci_mutex);
+
+	if (state == virtual_ncidev_enabled) {
+		state = virtual_ncidev_disabling;
+		mutex_unlock(&nci_mutex);
+
+		nci_unregister_device(ndev);
+		nci_free_device(ndev);
+
+		mutex_lock(&nci_mutex);
+	}
+
+	state = virtual_ncidev_disabled;
+	mutex_unlock(&nci_mutex);
+
+	return 0;
+}
+
+static long virtual_ncidev_ioctl(struct file *flip, unsigned int cmd,
+				 unsigned long arg)
+{
+	struct nfc_dev *nfc_dev = ndev->nfc_dev;
+	void __user *p = (void __user *)arg;
+
+	if (cmd != IOCTL_GET_NCIDEV_IDX)
+		return -ENOTTY;
+
+	if (copy_to_user(p, &nfc_dev->idx, sizeof(nfc_dev->idx)))
+		return -EFAULT;
+
+	return 0;
+}
+
+static const struct file_operations virtual_ncidev_fops = {
+	.owner = THIS_MODULE,
+	.read = virtual_ncidev_read,
+	.write = virtual_ncidev_write,
+	.open = virtual_ncidev_open,
+	.release = virtual_ncidev_close,
+	.unlocked_ioctl = virtual_ncidev_ioctl
+};
+
+static int __init virtual_ncidev_init(void)
+{
+	state = virtual_ncidev_disabled;
+	miscdev.minor = MISC_DYNAMIC_MINOR;
+	miscdev.name = "virtual_nci";
+	miscdev.fops = &virtual_ncidev_fops;
+	miscdev.mode = S_IALLUGO;
+
+	return misc_register(&miscdev);
+}
+
+static void __exit virtual_ncidev_exit(void)
+{
+	misc_deregister(&miscdev);
+}
+
+module_init(virtual_ncidev_init);
+module_exit(virtual_ncidev_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Virtual NCI device simulation driver");
+MODULE_AUTHOR("Bongsu Jeon <bongsu.jeon@samsung.com>");

tools/testing/selftests/Makefile

@@ -34,6 +34,7 @@ TARGETS += memory-hotplug
 TARGETS += mincore
 TARGETS += mount
 TARGETS += mqueue
+TARGETS += nci
 TARGETS += net
 TARGETS += net/forwarding
 TARGETS += net/mptcp

tools/testing/selftests/nci/Makefile

+# SPDX-License-Identifier: GPL-2.0
+CFLAGS += -Wl,-no-as-needed -Wall
+LDFLAGS += -lpthread
+
+TEST_GEN_PROGS := nci_dev
+include ../lib.mk

tools/testing/selftests/nci/config

+CONFIG_NFC=y
+CONFIG_NFC_NCI=y
+CONFIG_NFC_VIRTUAL_NCI=y

tools/testing/selftests/nci/nci_dev.c

+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021 Samsung Electrnoics
+ * Bongsu Jeon <bongsu.jeon@samsung.com>
+ *
+ * Test code for nci
+ */
+
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <linux/genetlink.h>
+#include <sys/socket.h>
+#include <linux/nfc.h>
+
+#include "../kselftest_harness.h"
+
+#define GENLMSG_DATA(glh)	((void *)(NLMSG_DATA(glh) + GENL_HDRLEN))
+#define GENLMSG_PAYLOAD(glh)	(NLMSG_PAYLOAD(glh, 0) - GENL_HDRLEN)
+#define NLA_DATA(na)		((void *)((char *)(na) + NLA_HDRLEN))
+#define NLA_PAYLOAD(len)	((len) - NLA_HDRLEN)
+
+#define MAX_MSG_SIZE	1024
+
+#define IOCTL_GET_NCIDEV_IDX	0
+#define VIRTUAL_NFC_PROTOCOLS	(NFC_PROTO_JEWEL_MASK | \
+				 NFC_PROTO_MIFARE_MASK | \
+				 NFC_PROTO_FELICA_MASK | \
+				 NFC_PROTO_ISO14443_MASK | \
+				 NFC_PROTO_ISO14443_B_MASK | \
+				 NFC_PROTO_ISO15693_MASK)
+
+const __u8 nci_reset_cmd[] = {0x20, 0x00, 0x01, 0x01};
+const __u8 nci_init_cmd[] = {0x20, 0x01, 0x00};
+const __u8 nci_rf_discovery_cmd[] = {0x21, 0x03, 0x09, 0x04, 0x00, 0x01,
+				      0x01, 0x01, 0x02, 0x01, 0x06, 0x01};
+const __u8 nci_init_cmd_v2[] = {0x20, 0x01, 0x02, 0x00, 0x00};
+const __u8 nci_rf_disc_map_cmd[] = {0x21, 0x00, 0x07, 0x02, 0x04, 0x03,
+				     0x02, 0x05, 0x03, 0x03};
+const __u8 nci_rf_deact_cmd[] = {0x21, 0x06, 0x01, 0x00};
+const __u8 nci_reset_rsp[] = {0x40, 0x00, 0x03, 0x00, 0x10, 0x01};
+const __u8 nci_reset_rsp_v2[] = {0x40, 0x00, 0x01, 0x00};
+const __u8 nci_reset_ntf[] = {0x60, 0x00, 0x09, 0x02, 0x01, 0x20, 0x0e,
+			       0x04, 0x61, 0x00, 0x04, 0x02};
+const __u8 nci_init_rsp[] = {0x40, 0x01, 0x14, 0x00, 0x02, 0x0e, 0x02,
+			      0x00, 0x03, 0x01, 0x02, 0x03, 0x02, 0xc8,
+			      0x00, 0xff, 0x10, 0x00, 0x0e, 0x12, 0x00,
+			      0x00, 0x04};
+const __u8 nci_init_rsp_v2[] = {0x40, 0x01, 0x1c, 0x00, 0x1a, 0x7e, 0x06,
+				 0x00, 0x02, 0x92, 0x04, 0xff, 0xff, 0x01,
+				 0x00, 0x40, 0x06, 0x00, 0x00, 0x01, 0x01,
+				 0x00, 0x02, 0x00, 0x03, 0x01, 0x01, 0x06,
+				 0x00, 0x80, 0x00};
+const __u8 nci_rf_disc_map_rsp[] = {0x41, 0x00, 0x01, 0x00};
+const __u8 nci_rf_disc_rsp[] = {0x41, 0x03, 0x01, 0x00};
+const __u8 nci_rf_deact_rsp[] = {0x41, 0x06, 0x01, 0x00};
+
+struct msgtemplate {
+	struct nlmsghdr n;
+	struct genlmsghdr g;
+	char buf[MAX_MSG_SIZE];
+};
+
+static int create_nl_socket(void)
+{
+	int fd;
+	struct sockaddr_nl local;
+
+	fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
+	if (fd < 0)
+		return -1;
+
+	memset(&local, 0, sizeof(local));
+	local.nl_family = AF_NETLINK;
+
+	if (bind(fd, (struct sockaddr *)&local, sizeof(local)) < 0)
+		goto error;
+
+	return fd;
+error:
+	close(fd);
+	return -1;
+}
+
+static int send_cmd_mt_nla(int sd, __u16 nlmsg_type, __u32 nlmsg_pid,
+			   __u8 genl_cmd, int nla_num, __u16 nla_type[],
+			   void *nla_data[], int nla_len[])
+{
+	struct sockaddr_nl nladdr;
+	struct msgtemplate msg;
+	struct nlattr *na;
+	int cnt, prv_len;
+	int r, buflen;
+	char *buf;
+
+	msg.n.nlmsg_len = NLMSG_LENGTH(GENL_HDRLEN);
+	msg.n.nlmsg_type = nlmsg_type;
+	msg.n.nlmsg_flags = NLM_F_REQUEST;
+	msg.n.nlmsg_seq = 0;
+	msg.n.nlmsg_pid = nlmsg_pid;
+	msg.g.cmd = genl_cmd;
+	msg.g.version = 0x1;
+
+	prv_len = 0;
+	for (cnt = 0; cnt < nla_num; cnt++) {
+		na = (struct nlattr *)(GENLMSG_DATA(&msg) + prv_len);
+		na->nla_type = nla_type[cnt];
+		na->nla_len = nla_len[cnt] + NLA_HDRLEN;
+
+		if (nla_len > 0)
+			memcpy(NLA_DATA(na), nla_data[cnt], nla_len[cnt]);
+
+		msg.n.nlmsg_len += NLMSG_ALIGN(na->nla_len);
+		prv_len = na->nla_len;
+	}
+
+	buf = (char *)&msg;
+	buflen = msg.n.nlmsg_len;
+	memset(&nladdr, 0, sizeof(nladdr));
+	nladdr.nl_family = AF_NETLINK;
+
+	while ((r = sendto(sd, buf, buflen, 0, (struct sockaddr *)&nladdr,
+			   sizeof(nladdr))) < buflen) {
+		if (r > 0) {
+			buf += r;
+			buflen -= r;
+		} else if (errno != EAGAIN) {
+			return -1;
+		}
+	}
+	return 0;
+}
+
+static int send_get_nfc_family(int sd, __u32 pid)
+{
+	__u16 nla_get_family_type = CTRL_ATTR_FAMILY_NAME;
+	void *nla_get_family_data;
+	int nla_get_family_len;
+	char family_name[100];
+
+	nla_get_family_len = strlen(NFC_GENL_NAME) + 1;
+	strcpy(family_name, NFC_GENL_NAME);
+	nla_get_family_data = family_name;
+
+	return send_cmd_mt_nla(sd, GENL_ID_CTRL, pid, CTRL_CMD_GETFAMILY,
+				1, &nla_get_family_type,
+				&nla_get_family_data, &nla_get_family_len);
+}
+
+static int get_family_id(int sd, __u32 pid)
+{
+	struct {
+		struct nlmsghdr n;
+		struct genlmsghdr g;
+		char buf[512];
+	} ans;
+	struct nlattr *na;
+	int rep_len;
+	__u16 id;
+	int rc;
+
+	rc = send_get_nfc_family(sd, pid);
+
+	if (rc < 0)
+		return 0;
+
+	rep_len = recv(sd, &ans, sizeof(ans), 0);
+
+	if (ans.n.nlmsg_type == NLMSG_ERROR || rep_len < 0 ||
+	    !NLMSG_OK(&ans.n, rep_len))
+		return 0;
+
+	na = (struct nlattr *)GENLMSG_DATA(&ans);
+	na = (struct nlattr *)((char *)na + NLA_ALIGN(na->nla_len));
+	if (na->nla_type == CTRL_ATTR_FAMILY_ID)
+		id = *(__u16 *)NLA_DATA(na);
+
+	return id;
+}
+
+static int send_cmd_with_idx(int sd, __u16 nlmsg_type, __u32 nlmsg_pid,
+			     __u8 genl_cmd, int dev_id)
+{
+	__u16 nla_type = NFC_ATTR_DEVICE_INDEX;
+	void *nla_data = &dev_id;
+	int nla_len = 4;
+
+	return send_cmd_mt_nla(sd, nlmsg_type, nlmsg_pid, genl_cmd, 1,
+				&nla_type, &nla_data, &nla_len);
+}
+
+static int get_nci_devid(int sd, __u16 fid, __u32 pid, int dev_id, struct msgtemplate *msg)
+{
+	int rc, rep_len;
+
+	rc = send_cmd_with_idx(sd, fid, pid, NFC_CMD_GET_DEVICE, dev_id);
+	if (rc < 0) {
+		rc = -1;
+		goto error;
+	}
+
+	rep_len = recv(sd, msg, sizeof(*msg), 0);
+	if (rep_len < 0) {
+		rc = -2;
+		goto error;
+	}
+
+	if (msg->n.nlmsg_type == NLMSG_ERROR ||
+	    !NLMSG_OK(&msg->n, rep_len)) {
+		rc = -3;
+		goto error;
+	}
+
+	return 0;
+error:
+	return rc;
+}
+
+static __u8 get_dev_enable_state(struct msgtemplate *msg)
+{
+	struct nlattr *na;
+	int rep_len;
+	int len;
+
+	rep_len = GENLMSG_PAYLOAD(&msg->n);
+	na = (struct nlattr *)GENLMSG_DATA(msg);
+	len = 0;
+
+	while (len < rep_len) {
+		len += NLA_ALIGN(na->nla_len);
+		if (na->nla_type == NFC_ATTR_DEVICE_POWERED)
+			return *(char *)NLA_DATA(na);
+		na = (struct nlattr *)(GENLMSG_DATA(msg) + len);
+	}
+
+	return rep_len;
+}
+
+FIXTURE(NCI) {
+	int virtual_nci_fd;
+	bool open_state;
+	int dev_idex;
+	bool isNCI2;
+	int proto;
+	__u32 pid;
+	__u16 fid;
+	int sd;
+};
+
+FIXTURE_VARIANT(NCI) {
+	bool isNCI2;
+};
+
+FIXTURE_VARIANT_ADD(NCI, NCI1_0) {
+	.isNCI2 = false,
+};
+
+FIXTURE_VARIANT_ADD(NCI, NCI2_0) {
+	.isNCI2 = true,
+};
+
+static void *virtual_dev_open(void *data)
+{
+	char buf[258];
+	int dev_fd;
+	int len;
+
+	dev_fd = *(int *)data;
+
+	while ((len = read(dev_fd, buf, 258)) == 0)
+		;
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_reset_cmd))
+		goto error;
+	if (memcmp(nci_reset_cmd, buf, len))
+		goto error;
+	write(dev_fd, nci_reset_rsp, sizeof(nci_reset_rsp));
+
+	while ((len = read(dev_fd, buf, 258)) == 0)
+		;
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_init_cmd))
+		goto error;
+	if (memcmp(nci_init_cmd, buf, len))
+		goto error;
+	write(dev_fd, nci_init_rsp, sizeof(nci_init_rsp));
+
+	while ((len = read(dev_fd, buf, 258)) == 0)
+		;
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_rf_disc_map_cmd))
+		goto error;
+	if (memcmp(nci_rf_disc_map_cmd, buf, len))
+		goto error;
+	write(dev_fd, nci_rf_disc_map_rsp, sizeof(nci_rf_disc_map_rsp));
+
+	return (void *)0;
+error:
+	return (void *)-1;
+}
+
+static void *virtual_dev_open_v2(void *data)
+{
+	char buf[258];
+	int dev_fd;
+	int len;
+
+	dev_fd = *(int *)data;
+
+	while ((len = read(dev_fd, buf, 258)) == 0)
+		;
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_reset_cmd))
+		goto error;
+	if (memcmp(nci_reset_cmd, buf, len))
+		goto error;
+	write(dev_fd, nci_reset_rsp_v2, sizeof(nci_reset_rsp_v2));
+	write(dev_fd, nci_reset_ntf, sizeof(nci_reset_ntf));
+
+	while ((len = read(dev_fd, buf, 258)) == 0)
+		;
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_init_cmd_v2))
+		goto error;
+	if (memcmp(nci_init_cmd_v2, buf, len))
+		goto error;
+	write(dev_fd, nci_init_rsp_v2, sizeof(nci_init_rsp_v2));
+
+	while ((len = read(dev_fd, buf, 258)) == 0)
+		;
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_rf_disc_map_cmd))
+		goto error;
+	if (memcmp(nci_rf_disc_map_cmd, buf, len))
+		goto error;
+	write(dev_fd, nci_rf_disc_map_rsp, sizeof(nci_rf_disc_map_rsp));
+
+	return (void *)0;
+error:
+	return (void *)-1;
+}
+
+FIXTURE_SETUP(NCI)
+{
+	struct msgtemplate msg;
+	pthread_t thread_t;
+	int status;
+	int rc;
+
+	self->open_state = false;
+	self->proto = VIRTUAL_NFC_PROTOCOLS;
+	self->isNCI2 = variant->isNCI2;
+
+	self->sd = create_nl_socket();
+	ASSERT_NE(self->sd, -1);
+
+	self->pid = getpid();
+	self->fid = get_family_id(self->sd, self->pid);
+	ASSERT_NE(self->fid, -1);
+
+	self->virtual_nci_fd = open("/dev/virtual_nci", O_RDWR);
+	ASSERT_GT(self->virtual_nci_fd, -1);
+
+	rc = ioctl(self->virtual_nci_fd, IOCTL_GET_NCIDEV_IDX, &self->dev_idex);
+	ASSERT_EQ(rc, 0);
+
+	rc = get_nci_devid(self->sd, self->fid, self->pid, self->dev_idex, &msg);
+	ASSERT_EQ(rc, 0);
+	EXPECT_EQ(get_dev_enable_state(&msg), 0);
+
+	if (self->isNCI2)
+		rc = pthread_create(&thread_t, NULL, virtual_dev_open_v2,
+				    (void *)&self->virtual_nci_fd);
+	else
+		rc = pthread_create(&thread_t, NULL, virtual_dev_open,
+				    (void *)&self->virtual_nci_fd);
+	ASSERT_GT(rc, -1);
+
+	rc = send_cmd_with_idx(self->sd, self->fid, self->pid,
+			       NFC_CMD_DEV_UP, self->dev_idex);
+	EXPECT_EQ(rc, 0);
+
+	pthread_join(thread_t, (void **)&status);
+	ASSERT_EQ(status, 0);
+	self->open_state = true;
+}
+
+static void *virtual_deinit(void *data)
+{
+	char buf[258];
+	int dev_fd;
+	int len;
+
+	dev_fd = *(int *)data;
+
+	while ((len = read(dev_fd, buf, 258)) == 0)
+		;
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_reset_cmd))
+		goto error;
+	if (memcmp(nci_reset_cmd, buf, len))
+		goto error;
+	write(dev_fd, nci_reset_rsp, sizeof(nci_reset_rsp));
+
+	return (void *)0;
+error:
+	return (void *)-1;
+}
+
+static void *virtual_deinit_v2(void *data)
+{
+	char buf[258];
+	int dev_fd;
+	int len;
+
+	dev_fd = *(int *)data;
+
+	while ((len = read(dev_fd, buf, 258)) == 0)
+		;
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_reset_cmd))
+		goto error;
+	if (memcmp(nci_reset_cmd, buf, len))
+		goto error;
+	write(dev_fd, nci_reset_rsp_v2, sizeof(nci_reset_rsp_v2));
+	write(dev_fd, nci_reset_ntf, sizeof(nci_reset_ntf));
+
+	return (void *)0;
+error:
+	return (void *)-1;
+}
+
+FIXTURE_TEARDOWN(NCI)
+{
+	pthread_t thread_t;
+	int status;
+	int rc;
+
+	if (self->open_state) {
+		if (self->isNCI2)
+			rc = pthread_create(&thread_t, NULL,
+					    virtual_deinit_v2,
+					    (void *)&self->virtual_nci_fd);
+		else
+			rc = pthread_create(&thread_t, NULL, virtual_deinit,
+					    (void *)&self->virtual_nci_fd);
+
+		ASSERT_GT(rc, -1);
+		rc = send_cmd_with_idx(self->sd, self->fid, self->pid,
+				       NFC_CMD_DEV_DOWN, self->dev_idex);
+		EXPECT_EQ(rc, 0);
+
+		pthread_join(thread_t, (void **)&status);
+		ASSERT_EQ(status, 0);
+	}
+
+	close(self->sd);
+	close(self->virtual_nci_fd);
+	self->open_state = false;
+}
+
+TEST_F(NCI, init)
+{
+	struct msgtemplate msg;
+	int rc;
+
+	rc = get_nci_devid(self->sd, self->fid, self->pid, self->dev_idex,
+			   &msg);
+	ASSERT_EQ(rc, 0);
+	EXPECT_EQ(get_dev_enable_state(&msg), 1);
+}
+
+static void *virtual_poll_start(void *data)
+{
+	char buf[258];
+	int dev_fd;
+	int len;
+
+	dev_fd = *(int *)data;
+
+	while ((len = read(dev_fd, buf, 258)) == 0)
+		;
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_rf_discovery_cmd))
+		goto error;
+	if (memcmp(nci_rf_discovery_cmd, buf, len))
+		goto error;
+	write(dev_fd, nci_rf_disc_rsp, sizeof(nci_rf_disc_rsp))
+		;
+
+	return (void *)0;
+error:
+	return (void *)-1;
+}
+
+static void *virtual_poll_stop(void *data)
+{
+	char buf[258];
+	int dev_fd;
+	int len;
+
+	dev_fd = *(int *)data;
+
+	while ((len = read(dev_fd, buf, 258)) == 0)
+		;
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_rf_deact_cmd))
+		goto error;
+	if (memcmp(nci_rf_deact_cmd, buf, len))
+		goto error;
+	write(dev_fd, nci_rf_deact_rsp, sizeof(nci_rf_deact_rsp));
+
+	return (void *)0;
+error:
+	return (void *)-1;
+}
+
+TEST_F(NCI, start_poll)
+{
+	__u16 nla_start_poll_type[2] = {NFC_ATTR_DEVICE_INDEX,
+					 NFC_ATTR_PROTOCOLS};
+	void *nla_start_poll_data[2] = {&self->dev_idex, &self->proto};
+	int nla_start_poll_len[2] = {4, 4};
+	pthread_t thread_t;
+	int status;
+	int rc;
+
+	rc = pthread_create(&thread_t, NULL, virtual_poll_start,
+			    (void *)&self->virtual_nci_fd);
+	ASSERT_GT(rc, -1);
+
+	rc = send_cmd_mt_nla(self->sd, self->fid, self->pid,
+			     NFC_CMD_START_POLL, 2, nla_start_poll_type,
+			     nla_start_poll_data, nla_start_poll_len);
+	EXPECT_EQ(rc, 0);
+
+	pthread_join(thread_t, (void **)&status);
+	ASSERT_EQ(status, 0);
+
+	rc = pthread_create(&thread_t, NULL, virtual_poll_stop,
+			    (void *)&self->virtual_nci_fd);
+	ASSERT_GT(rc, -1);
+
+	rc = send_cmd_with_idx(self->sd, self->fid, self->pid,
+			       NFC_CMD_STOP_POLL, self->dev_idex);
+	EXPECT_EQ(rc, 0);
+
+	pthread_join(thread_t, (void **)&status);
+	ASSERT_EQ(status, 0);
+}
+
+TEST_F(NCI, deinit)
+{
+	struct msgtemplate msg;
+	pthread_t thread_t;
+	int status;
+	int rc;
+
+	rc = get_nci_devid(self->sd, self->fid, self->pid, self->dev_idex,
+			   &msg);
+	ASSERT_EQ(rc, 0);
+	EXPECT_EQ(get_dev_enable_state(&msg), 1);
+
+	if (self->isNCI2)
+		rc = pthread_create(&thread_t, NULL, virtual_deinit_v2,
+				    (void *)&self->virtual_nci_fd);
+	else
+		rc = pthread_create(&thread_t, NULL, virtual_deinit,
+				    (void *)&self->virtual_nci_fd);
+	ASSERT_GT(rc, -1);
+
+	rc = send_cmd_with_idx(self->sd, self->fid, self->pid,
+			       NFC_CMD_DEV_DOWN, self->dev_idex);
+	EXPECT_EQ(rc, 0);
+
+	pthread_join(thread_t, (void **)&status);
+	self->open_state = 0;
+	ASSERT_EQ(status, 0);
+
+	rc = get_nci_devid(self->sd, self->fid, self->pid, self->dev_idex,
+			   &msg);
+	ASSERT_EQ(rc, 0);
+	EXPECT_EQ(get_dev_enable_state(&msg), 0);
+}
+
+TEST_HARNESS_MAIN