| // 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 |