--- /dev/null
+// 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
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