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selftests: Add nci suite 

This is the NCI test suite. It tests the NFC/NCI module using virtual NCI
device. Test cases consist of making the virtual NCI device on/off and
controlling the device's polling for NCI1.0 and NCI2.0 version.

Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Bongsu Jeon 2021-01-27 22:08:29 +09:00 committed by Jakub Kicinski
parent e624e6c3e7
commit f595cf1242
5 changed files with 617 additions and 0 deletions
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8
MAINTAINERS
View File

@ -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>

1
tools/testing/selftests/Makefile
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@ -34,6 +34,7 @@ TARGETS += memory-hotplug
TARGETS += mincore
TARGETS += mount
TARGETS += mqueue
TARGETS += nci
TARGETS += net
TARGETS += net/forwarding
TARGETS += net/mptcp

6
tools/testing/selftests/nci/Makefile Normal file
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@ -0,0 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
CFLAGS += -Wl,-no-as-needed -Wall
LDFLAGS += -lpthread
TEST_GEN_PROGS := nci_dev
include ../lib.mk

3
tools/testing/selftests/nci/config Normal file
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@ -0,0 +1,3 @@
CONFIG_NFC=y
CONFIG_NFC_NCI=y
CONFIG_NFC_VIRTUAL_NCI=y

599
tools/testing/selftests/nci/nci_dev.c Normal file
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@ -0,0 +1,599 @@
// 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