From: Bongsu Jeon bongsu.jeon@samsung.com

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 --- MAINTAINERS | 8 + tools/testing/selftests/Makefile | 1 + tools/testing/selftests/nci/Makefile | 6 + tools/testing/selftests/nci/config | 3 + tools/testing/selftests/nci/nci_dev.c | 599 ++++++++++++++++++++++++++ 5 files changed, 617 insertions(+) create mode 100644 tools/testing/selftests/nci/Makefile create mode 100644 tools/testing/selftests/nci/config create mode 100644 tools/testing/selftests/nci/nci_dev.c

diff --git a/MAINTAINERS b/MAINTAINERS index 096b584e7fed..b62832e39e2a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -12531,6 +12531,14 @@ 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 diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile index 8a917cb4426a..c42aacec5038 100644 --- a/tools/testing/selftests/Makefile +++ b/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 diff --git a/tools/testing/selftests/nci/Makefile b/tools/testing/selftests/nci/Makefile new file mode 100644 index 000000000000..47669a1d6a59 --- /dev/null +++ b/tools/testing/selftests/nci/Makefile @@ -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 diff --git a/tools/testing/selftests/nci/config b/tools/testing/selftests/nci/config new file mode 100644 index 000000000000..b084e78276be --- /dev/null +++ b/tools/testing/selftests/nci/config @@ -0,0 +1,3 @@ +CONFIG_NFC=y +CONFIG_NFC_NCI=y +CONFIG_NFC_VIRTUAL_NCI=y diff --git a/tools/testing/selftests/nci/nci_dev.c b/tools/testing/selftests/nci/nci_dev.c new file mode 100644 index 000000000000..57b505cb1561 --- /dev/null +++ b/tools/testing/selftests/nci/nci_dev.c @@ -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