[PATCH v3] tests: Add test for decoding of PTP_* ioctl commands
Harsha Sharma
harshasharmaiitr at gmail.com
Thu Mar 8 13:51:28 UTC 2018
* tests/ioctl_ptp.c: New file.
* tests/.gitignore: Add ioctl_ptp.
* tests/gen_tests.in (ioctl_ptp): New entry.
* tests/pure_executables.list: Likewise.
---
Changes in v3:
* check for macro HAVE_STRUCT_PTP_SYS_OFFSET
* print field names as per fixed decoder
* cover all cases like when call succeeds
Changes in v2:
* Add decoding of non-zero arguments in test_no_device
* Use TAIL_ALLOC_OBJECT_CONST_PTR
* Change variable names and error message
* Remove hunk from Makefile.am
* Other minor changes
tests/.gitignore | 1 +
tests/gen_tests.in | 1 +
tests/ioctl_ptp.c | 160 ++++++++++++++++++++++++++++++++++++++++++++
tests/pure_executables.list | 1 +
4 files changed, 163 insertions(+)
create mode 100644 tests/ioctl_ptp.c
diff --git a/tests/.gitignore b/tests/.gitignore
index dd0c8e12..fb240e32 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -137,6 +137,7 @@ ioctl_loop-nv
ioctl_loop-v
ioctl_mtd
ioctl_nsfs
+ioctl_ptp
ioctl_rtc
ioctl_rtc-v
ioctl_scsi
diff --git a/tests/gen_tests.in b/tests/gen_tests.in
index 55cc98de..b37adcf7 100644
--- a/tests/gen_tests.in
+++ b/tests/gen_tests.in
@@ -136,6 +136,7 @@ ioctl_loop-nv +ioctl.test -a22 -e verbose=none
ioctl_loop-v +ioctl.test -v
ioctl_mtd +ioctl.test
ioctl_nsfs +ioctl.test -esignal=none
+ioctl_ptp +ioctl.test
ioctl_rtc +ioctl.test
ioctl_rtc-v +ioctl.test -v
ioctl_scsi +ioctl.test
diff --git a/tests/ioctl_ptp.c b/tests/ioctl_ptp.c
new file mode 100644
index 00000000..4036d486
--- /dev/null
+++ b/tests/ioctl_ptp.c
@@ -0,0 +1,160 @@
+/*
+ * Check decoding of PTP_* commands of ioctl syscall.
+ *
+ * Copyright (c) 2017 Harsha Sharma <harshasharmaiitr at gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "tests.h"
+#include "xlat.h"
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <inttypes.h>
+#include <unistd.h>
+
+#ifdef HAVE_STRUCT_PTP_SYS_OFFSET
+
+#include <linux/ptp_clock.h>
+
+#include "xlat/ptp_flags_options.h"
+
+static void
+test_no_device(void)
+{
+ TAIL_ALLOC_OBJECT_CONST_PTR(struct ptp_clock_caps, caps);
+ fill_memory(caps, sizeof(*caps));
+ TAIL_ALLOC_OBJECT_CONST_PTR(struct ptp_sys_offset, sysoff);
+ fill_memory(sysoff, sizeof(*sysoff));
+ TAIL_ALLOC_OBJECT_CONST_PTR(struct ptp_extts_request, extts);
+ fill_memory(extts, sizeof(*extts));
+ TAIL_ALLOC_OBJECT_CONST_PTR(struct ptp_perout_request, perout);
+
+ /* PTP_CLOCK_GETCAPS */
+ ioctl(-1, PTP_CLOCK_GETCAPS, NULL);
+ printf("ioctl(-1, PTP_CLOCK_GETCAPS, NULL) = -1 EBADF (%m)\n");
+ ioctl(-1, PTP_CLOCK_GETCAPS, caps);
+ printf("ioctl(-1, PTP_CLOCK_GETCAPS, %p) = -1 EBADF (%m)\n", caps);
+
+ /* PTP_SYS_OFFSET */
+ ioctl(-1, PTP_SYS_OFFSET, NULL);
+ printf("ioctl(-1, PTP_SYS_OFFSET, NULL) = -1 EBADF (%m)\n");
+ ioctl(-1, PTP_SYS_OFFSET, sysoff);
+ printf("ioctl(-1, PTP_SYS_OFFSET, {n_samples=%u}) = -1 EBADF (%m)\n",
+ sysoff->n_samples);
+
+ /* PTP_ENABLE_PPS */
+ ioctl(-1, PTP_ENABLE_PPS, 0);
+ printf("ioctl(-1, PTP_ENABLE_PPS, 0) = -1 EBADF (%m)\n");
+ ioctl(-1, PTP_ENABLE_PPS, 1);
+ printf("ioctl(-1, PTP_ENABLE_PPS, 1) = -1 EBADF (%m)\n");
+
+ /* PTP_EXTTS_REQUEST */
+ ioctl(-1, PTP_EXTTS_REQUEST, NULL);
+ printf("ioctl(-1, PTP_EXTTS_REQUEST, NULL) = -1 EBADF (%m)\n");
+ ioctl(-1, PTP_EXTTS_REQUEST, extts);
+ printf("ioctl(-1, PTP_EXTTS_REQUEST, {index=%d, flags=", extts->index);
+ printflags(ptp_flags_options, extts->flags, "PTP_???");
+ printf("}) = -1 EBADF (%m)\n");
+
+ /* PTP_PEROUT_REQUEST */
+ ioctl(-1, PTP_PEROUT_REQUEST, NULL);
+ printf("ioctl(-1, PTP_PEROUT_REQUEST, NULL) = -1 EBADF (%m)\n");
+ ioctl(-1, PTP_PEROUT_REQUEST, perout);
+ printf("ioctl(-1, PTP_PEROUT_REQUEST, {start={sec=%" PRId64 ""
+ ", nsec=%" PRIu32 "}, period={sec=%" PRId64 ", nsec=%" PRIu32 "}"
+ ", index=%d, flags=", (int64_t)perout->start.sec,
+ perout->start.nsec, (int64_t)perout->period.sec,
+ perout->period.nsec, perout->index);
+ printflags(ptp_flags_options, perout->flags, "PTP_???");
+ printf("}) = -1 EBADF (%m)\n");
+}
+static void
+test_ptp0_device(void)
+{
+
+ TAIL_ALLOC_OBJECT_CONST_PTR(struct ptp_clock_caps, caps);
+ fill_memory(caps, sizeof(*caps));
+ TAIL_ALLOC_OBJECT_CONST_PTR(struct ptp_sys_offset, sysoff);
+ fill_memory(sysoff, sizeof(*sysoff));
+
+ static const char device[] = "/dev/ptp0";
+ int fd = open(device, O_RDWR);
+ if (fd < 0) {
+ perror(device);
+ return;
+ }
+
+ /* PTP_CLOCK_GETCAPS */
+ int getcaps_ret = ioctl(fd, PTP_CLOCK_GETCAPS, caps);
+ if (getcaps_ret < 0) {
+ printf("ioctl(%d, PTP_CLOCK_GETCAPS, %p) = %s\n",
+ fd, caps, sprintrc(getcaps_ret));
+ } else {
+ printf("ioctl(%d, PTP_CLOCK_GETCAPS, {max_adj=%d, n_alarm=%d"
+ ", n_ext_ts=%d, n_per_out=%d, pps=%d}) = %s\n",
+ fd, caps->max_adj, caps->n_alarm, caps->n_ext_ts,
+ caps->n_per_out, caps->pps, sprintrc(getcaps_ret));
+ }
+
+ /* PTP_SYS_OFFSET */
+ int sysoff_ret = ioctl(fd, PTP_SYS_OFFSET, sysoff);
+ if (sysoff_ret < 0) {
+ printf("ioctl(%d, PTP_SYS_OFFSET, {n_samples=%u}) = %s\n",
+ fd, sysoff->n_samples, sprintrc(sysoff_ret));
+ } else {
+ unsigned int n_samples, i;
+
+ printf("ioctl(%d, PTP_SYS_OFFSET, ts=[", fd);
+ n_samples = sysoff->n_samples > PTP_MAX_SAMPLES ?
+ PTP_MAX_SAMPLES : sysoff->n_samples;
+ for (i = 0; i < 2 * n_samples + 1; ++i) {
+ if (i > 0)
+ printf(", ");
+ printf("{sec=%" PRId64 ", nsec=%" PRIu32 "}",
+ (int64_t)sysoff->ts[i].sec, sysoff->ts[i].nsec);
+ }
+ if (sysoff->n_samples > PTP_MAX_SAMPLES)
+ printf(", ...");
+ printf("]) = %s\n", sprintrc(sysoff_ret));
+ }
+
+}
+
+int
+main(void)
+{
+ test_no_device();
+ test_ptp0_device();
+ puts("+++ exited with 0 +++");
+ return 0;
+}
+
+#else
+
+SKIP_MAIN_UNDEFINED("HAVE_STRUCT_PTP_SYS_OFFSET")
+
+#endif /* HAVE_STRUCT_PTP_SYS_OFFSET */
diff --git a/tests/pure_executables.list b/tests/pure_executables.list
index 18b5f1d8..74a2b832 100755
--- a/tests/pure_executables.list
+++ b/tests/pure_executables.list
@@ -108,6 +108,7 @@ ioctl_kvm_run
ioctl_loop
ioctl_mtd
ioctl_rtc
+ioctl_ptp
ioctl_scsi
ioctl_sg_io_v3
ioctl_sg_io_v4
--
2.14.1
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