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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include "device-enumerator-private.h"
#include "device-internal.h"
#include "device-private.h"
#include "device-util.h"
#include "hashmap.h"
#include "nulstr-util.h"
#include "string-util.h"
#include "tests.h"
#include "time-util.h"
static void test_sd_device_one(sd_device *d) {
const char *syspath, *subsystem, *val;
dev_t devnum;
usec_t usec;
int i, r;
assert_se(sd_device_get_syspath(d, &syspath) >= 0);
r = sd_device_get_subsystem(d, &subsystem);
assert_se(r >= 0 || r == -ENOENT);
r = sd_device_get_devtype(d, &val);
assert_se(r >= 0 || r == -ENOENT);
r = sd_device_get_devnum(d, &devnum);
assert_se((r >= 0 && major(devnum) > 0) || r == -ENOENT);
r = sd_device_get_ifindex(d, &i);
assert_se((r >= 0 && i > 0) || r == -ENOENT);
r = sd_device_get_driver(d, &val);
assert_se(r >= 0 || r == -ENOENT);
assert_se(sd_device_get_devpath(d, &val) >= 0);
r = sd_device_get_devname(d, &val);
assert_se(r >= 0 || r == -ENOENT);
assert_se(sd_device_get_sysname(d, &val) >= 0);
r = sd_device_get_sysnum(d, &val);
assert_se(r >= 0 || r == -ENOENT);
i = sd_device_get_is_initialized(d);
assert_se(i >= 0);
if (i > 0) {
r = sd_device_get_usec_since_initialized(d, &usec);
assert_se((r >= 0 && usec > 0) || r == -ENODATA);
}
r = sd_device_get_sysattr_value(d, "name_assign_type", &val);
assert_se(r >= 0 || IN_SET(r, -ENOENT, -EINVAL));
r = sd_device_get_property_value(d, "ID_NET_DRIVER", &val);
assert_se(r >= 0 || r == -ENOENT);
log_info("syspath:%s subsystem:%s initialized:%s", syspath, strna(subsystem), yes_no(i));
}
static void test_sd_device_enumerator_devices(void) {
_cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL;
sd_device *d;
log_info("/* %s */", __func__);
assert_se(sd_device_enumerator_new(&e) >= 0);
assert_se(sd_device_enumerator_allow_uninitialized(e) >= 0);
FOREACH_DEVICE(e, d)
test_sd_device_one(d);
}
static void test_sd_device_enumerator_subsystems(void) {
_cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL;
sd_device *d;
log_info("/* %s */", __func__);
assert_se(sd_device_enumerator_new(&e) >= 0);
assert_se(sd_device_enumerator_allow_uninitialized(e) >= 0);
FOREACH_SUBSYSTEM(e, d)
test_sd_device_one(d);
}
static unsigned test_sd_device_enumerator_filter_subsystem_one(const char *subsystem, Hashmap *h) {
_cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL;
sd_device *d, *t;
unsigned n_new_dev = 0;
assert_se(sd_device_enumerator_new(&e) >= 0);
assert_se(sd_device_enumerator_add_match_subsystem(e, subsystem, true) >= 0);
FOREACH_DEVICE(e, d) {
const char *syspath;
assert_se(sd_device_get_syspath(d, &syspath) >= 0);
t = hashmap_remove(h, syspath);
assert_se(!sd_device_unref(t));
if (t)
log_debug("Removed subsystem:%s syspath:%s", subsystem, syspath);
else {
log_warning("New device found: subsystem:%s syspath:%s", subsystem, syspath);
n_new_dev++;
}
}
/* Assume no device is unplugged. */
assert_se(hashmap_isempty(h));
return n_new_dev;
}
static void test_sd_device_enumerator_filter_subsystem(void) {
_cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL;
_cleanup_(hashmap_freep) Hashmap *subsystems;
unsigned n_new_dev = 0;
sd_device *d;
Hashmap *h;
char *s;
log_info("/* %s */", __func__);
assert_se(subsystems = hashmap_new(&string_hash_ops));
assert_se(sd_device_enumerator_new(&e) >= 0);
FOREACH_DEVICE(e, d) {
const char *syspath, *subsystem;
int r;
assert_se(sd_device_get_syspath(d, &syspath) >= 0);
r = sd_device_get_subsystem(d, &subsystem);
assert_se(r >= 0 || r == -ENOENT);
if (r < 0)
continue;
h = hashmap_get(subsystems, subsystem);
if (!h) {
char *str;
assert_se(str = strdup(subsystem));
assert_se(h = hashmap_new(&string_hash_ops));
assert_se(hashmap_put(subsystems, str, h) >= 0);
}
assert_se(hashmap_put(h, syspath, d) >= 0);
assert_se(sd_device_ref(d));
log_debug("Added subsystem:%s syspath:%s", subsystem, syspath);
}
while ((h = hashmap_steal_first_key_and_value(subsystems, (void**) &s))) {
n_new_dev += test_sd_device_enumerator_filter_subsystem_one(s, h);
hashmap_free(h);
free(s);
}
if (n_new_dev > 0)
log_warning("%u new device is found in re-scan", n_new_dev);
/* Assume that not so many devices are plugged. */
assert_se(n_new_dev <= 10);
}
static void test_sd_device_new_from_nulstr(void) {
const char *devlinks =
"/dev/disk/by-partuuid/1290d63a-42cc-4c71-b87c-xxxxxxxxxxxx\0"
"/dev/disk/by-path/pci-0000:00:0f.0-scsi-0:0:0:0-part3\0"
"/dev/disk/by-label/Arch\\x20Linux\0"
"/dev/disk/by-uuid/a07b87e5-4af5-4a59-bde9-yyyyyyyyyyyy\0"
"/dev/disk/by-partlabel/Arch\\x20Linux\0"
"\0";
_cleanup_(sd_device_unrefp) sd_device *device = NULL, *from_nulstr = NULL;
_cleanup_free_ uint8_t *nulstr_copy = NULL;
const char *devlink;
const uint8_t *nulstr;
size_t len;
log_info("/* %s */", __func__);
assert_se(sd_device_new_from_syspath(&device, "/sys/class/net/lo") >= 0);
/* Yeah, of course, setting devlink to the loopback interface is nonsense. But this is just a
* test for generating and parsing nulstr. For issue #17772. */
NULSTR_FOREACH(devlink, devlinks) {
log_device_info(device, "setting devlink: %s", devlink);
assert_se(device_add_devlink(device, devlink) >= 0);
assert_se(set_contains(device->devlinks, devlink));
}
/* These properties are necessary for device_new_from_nulstr(). See device_verify(). */
assert_se(device_add_property_internal(device, "SEQNUM", "1") >= 0);
assert_se(device_add_property_internal(device, "ACTION", "change") >= 0);
assert_se(device_get_properties_nulstr(device, &nulstr, &len) >= 0);
assert_se(nulstr_copy = newdup(uint8_t, nulstr, len));
assert_se(device_new_from_nulstr(&from_nulstr, nulstr_copy, len) >= 0);
NULSTR_FOREACH(devlink, devlinks) {
log_device_info(from_nulstr, "checking devlink: %s", devlink);
assert_se(set_contains(from_nulstr->devlinks, devlink));
}
}
int main(int argc, char **argv) {
test_setup_logging(LOG_INFO);
test_sd_device_enumerator_devices();
test_sd_device_enumerator_subsystems();
test_sd_device_enumerator_filter_subsystem();
test_sd_device_new_from_nulstr();
return 0;
}
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