Adding upstream version 1.12.0.upstream/1.12.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 215 insertions, 0 deletions

diff --git a/examples/select.c b/examples/select.c
new file mode 100644
index 0000000..008eb2e
--- /dev/null
+++ b/examples/select.c
@@ -0,0 +1,215 @@
+/*
+ * Copyright (c) 2020-2022 Yubico AB. All rights reserved.
+ * Use of this source code is governed by a BSD-style
+ * license that can be found in the LICENSE file.
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <errno.h>
+#include <fido.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+#include "../openbsd-compat/openbsd-compat.h"
+
+#define FIDO_POLL_MS	50
+
+#if defined(_MSC_VER)
+static int
+nanosleep(const struct timespec *rqtp, struct timespec *rmtp)
+{
+	if (rmtp != NULL) {
+		errno = EINVAL;
+		return (-1);
+	}
+
+	Sleep((DWORD)(rqtp->tv_sec * 1000) + (DWORD)(rqtp->tv_nsec / 1000000));
+
+	return (0);
+}
+#endif
+
+static fido_dev_t *
+open_dev(const fido_dev_info_t *di)
+{
+	fido_dev_t	*dev;
+	int		 r;
+
+	if ((dev = fido_dev_new()) == NULL) {
+		warnx("%s: fido_dev_new", __func__);
+		return (NULL);
+	}
+
+	if ((r = fido_dev_open(dev, fido_dev_info_path(di))) != FIDO_OK) {
+		warnx("%s: fido_dev_open %s: %s", __func__,
+		    fido_dev_info_path(di), fido_strerr(r));
+		fido_dev_free(&dev);
+		return (NULL);
+	}
+
+	printf("%s (0x%04x:0x%04x) is %s\n", fido_dev_info_path(di),
+	    fido_dev_info_vendor(di), fido_dev_info_product(di),
+	    fido_dev_is_fido2(dev) ? "fido2" : "u2f");
+
+	return (dev);
+}
+
+static int
+select_dev(const fido_dev_info_t *devlist, size_t ndevs, fido_dev_t **dev,
+    size_t *idx, int secs)
+{
+	const fido_dev_info_t	 *di;
+	fido_dev_t		**devtab;
+	struct timespec		  ts_start;
+	struct timespec		  ts_now;
+	struct timespec		  ts_delta;
+	struct timespec		  ts_pause;
+	size_t			  nopen = 0;
+	int			  touched;
+	int			  r;
+	long			  ms_remain;
+
+	*dev = NULL;
+	*idx = 0;
+
+	printf("%u authenticator(s) detected\n", (unsigned)ndevs);
+
+	if (ndevs == 0)
+		return (0); /* nothing to do */
+
+	if ((devtab = calloc(ndevs, sizeof(*devtab))) == NULL) {
+		warn("%s: calloc", __func__);
+		return (-1);
+	}
+
+	for (size_t i = 0; i < ndevs; i++) {
+		di = fido_dev_info_ptr(devlist, i);
+		if ((devtab[i] = open_dev(di)) != NULL) {
+			*idx = i;
+			nopen++;
+		}
+	}
+
+	printf("%u authenticator(s) opened\n", (unsigned)nopen);
+
+	if (nopen < 2) {
+		if (nopen == 1)
+			*dev = devtab[*idx]; /* single candidate */
+		r = 0;
+		goto out;
+	}
+
+	for (size_t i = 0; i < ndevs; i++) {
+		di = fido_dev_info_ptr(devlist, i);
+		if (devtab[i] == NULL)
+			continue; /* failed to open */
+		if ((r = fido_dev_get_touch_begin(devtab[i])) != FIDO_OK) {
+			warnx("%s: fido_dev_get_touch_begin %s: %s", __func__,
+			    fido_dev_info_path(di), fido_strerr(r));
+			r = -1;
+			goto out;
+		}
+	}
+
+	if (clock_gettime(CLOCK_MONOTONIC, &ts_start) != 0) {
+		warn("%s: clock_gettime", __func__);
+		r = -1;
+		goto out;
+	}
+
+	ts_pause.tv_sec = 0;
+	ts_pause.tv_nsec = 200000000; /* 200ms */
+
+	do {
+		nanosleep(&ts_pause, NULL);
+
+		for (size_t i = 0; i < ndevs; i++) {
+			di = fido_dev_info_ptr(devlist, i);
+			if (devtab[i] == NULL) {
+				/* failed to open or discarded */
+				continue;
+			}
+			if ((r = fido_dev_get_touch_status(devtab[i], &touched,
+			    FIDO_POLL_MS)) != FIDO_OK) {
+				warnx("%s: fido_dev_get_touch_status %s: %s",
+				    __func__, fido_dev_info_path(di),
+				    fido_strerr(r));
+				fido_dev_close(devtab[i]);
+				fido_dev_free(&devtab[i]);
+				continue; /* discard */
+			}
+			if (touched) {
+				*dev = devtab[i];
+				*idx = i;
+				r = 0;
+				goto out;
+			}
+		}
+
+		if (clock_gettime(CLOCK_MONOTONIC, &ts_now) != 0) {
+			warn("%s: clock_gettime", __func__);
+			r = -1;
+			goto out;
+		}
+
+		timespecsub(&ts_now, &ts_start, &ts_delta);
+		ms_remain = (secs * 1000) - ((long)ts_delta.tv_sec * 1000) +
+		    ((long)ts_delta.tv_nsec / 1000000);
+	} while (ms_remain > FIDO_POLL_MS);
+
+	printf("timeout after %d seconds\n", secs);
+	r = -1;
+out:
+	if (r != 0) {
+		*dev = NULL;
+		*idx = 0;
+	}
+
+	for (size_t i = 0; i < ndevs; i++) {
+		if (devtab[i] && devtab[i] != *dev) {
+			fido_dev_cancel(devtab[i]);
+			fido_dev_close(devtab[i]);
+			fido_dev_free(&devtab[i]);
+		}
+	}
+
+	free(devtab);
+
+	return (r);
+}
+
+int
+main(void)
+{
+	const fido_dev_info_t	*di;
+	fido_dev_info_t		*devlist;
+	fido_dev_t		*dev;
+	size_t			 idx;
+	size_t			 ndevs;
+	int			 r;
+
+	fido_init(0);
+
+	if ((devlist = fido_dev_info_new(64)) == NULL)
+		errx(1, "fido_dev_info_new");
+
+	if ((r = fido_dev_info_manifest(devlist, 64, &ndevs)) != FIDO_OK)
+		errx(1, "fido_dev_info_manifest: %s (0x%x)", fido_strerr(r), r);
+	if (select_dev(devlist, ndevs, &dev, &idx, 15) != 0)
+		errx(1, "select_dev");
+	if (dev == NULL)
+		errx(1, "no authenticator found");
+
+	di = fido_dev_info_ptr(devlist, idx);
+	printf("%s: %s by %s (PIN %sset)\n", fido_dev_info_path(di),
+	    fido_dev_info_product_string(di),
+	    fido_dev_info_manufacturer_string(di),
+	    fido_dev_has_pin(dev) ? "" : "un");
+
+	fido_dev_close(dev);
+	fido_dev_free(&dev);
+	fido_dev_info_free(&devlist, ndevs);
+
+	exit(0);
+}