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test: add tests for filters of sd-device-monitor

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This commit is contained in:
Yu Watanabe 2021-02-24 14:05:03 +09:00
parent b8a0edbb2a
commit def366933c
1 changed files with 133 additions and 4 deletions
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137
src/libsystemd/sd-device/test-sd-device-monitor.c
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@ -95,10 +95,10 @@ static void test_send_receive_one(sd_device *device, bool subsystem_filter, bool
static void test_subsystem_filter(sd_device *device) {
_cleanup_(sd_device_monitor_unrefp) sd_device_monitor *monitor_server = NULL, *monitor_client = NULL;
_cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL;
const char *syspath, *subsystem, *p, *s;
const char *syspath, *subsystem;
sd_device *d;
log_info("/* %s */", __func__);
log_device_info(device, "/* %s */", __func__);
assert_se(sd_device_get_syspath(device, &syspath) >= 0);
assert_se(sd_device_get_subsystem(device, &subsystem) >= 0);
@ -116,18 +116,142 @@ static void test_subsystem_filter(sd_device *device) {
assert_se(sd_device_enumerator_new(&e) >= 0);
assert_se(sd_device_enumerator_add_match_subsystem(e, subsystem, false) >= 0);
FOREACH_DEVICE(e, d) {
const char *p, *s;
assert_se(sd_device_get_syspath(d, &p) >= 0);
assert_se(sd_device_get_subsystem(d, &s) >= 0);
log_info("Sending device subsystem:%s syspath:%s", s, p);
log_device_debug(d, "Sending device subsystem:%s syspath:%s", s, p);
assert_se(device_monitor_send_device(monitor_server, monitor_client, d) >= 0);
}
log_info("Sending device subsystem:%s syspath:%s", subsystem, syspath);
log_device_info(device, "Sending device subsystem:%s syspath:%s", subsystem, syspath);
assert_se(device_monitor_send_device(monitor_server, monitor_client, device) >= 0);
assert_se(sd_event_loop(sd_device_monitor_get_event(monitor_client)) == 100);
}
static void test_tag_filter(sd_device *device) {
_cleanup_(sd_device_monitor_unrefp) sd_device_monitor *monitor_server = NULL, *monitor_client = NULL;
_cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL;
const char *syspath;
sd_device *d;
log_device_info(device, "/* %s */", __func__);
assert_se(sd_device_get_syspath(device, &syspath) >= 0);
assert_se(device_monitor_new_full(&monitor_server, MONITOR_GROUP_NONE, -1) >= 0);
assert_se(sd_device_monitor_start(monitor_server, NULL, NULL) >= 0);
assert_se(sd_event_source_set_description(sd_device_monitor_get_event_source(monitor_server), "sender") >= 0);
assert_se(device_monitor_new_full(&monitor_client, MONITOR_GROUP_NONE, -1) >= 0);
assert_se(device_monitor_allow_unicast_sender(monitor_client, monitor_server) >= 0);
assert_se(sd_device_monitor_filter_add_match_tag(monitor_client, "TEST_SD_DEVICE_MONITOR") >= 0);
assert_se(sd_device_monitor_start(monitor_client, monitor_handler, (void *) syspath) >= 0);
assert_se(sd_event_source_set_description(sd_device_monitor_get_event_source(monitor_client), "receiver") >= 0);
assert_se(sd_device_enumerator_new(&e) >= 0);
FOREACH_DEVICE(e, d) {
const char *p;
assert_se(sd_device_get_syspath(d, &p) >= 0);
log_device_debug(d, "Sending device syspath:%s", p);
assert_se(device_monitor_send_device(monitor_server, monitor_client, d) >= 0);
}
log_device_info(device, "Sending device syspath:%s", syspath);
assert_se(device_monitor_send_device(monitor_server, monitor_client, device) >= 0);
assert_se(sd_event_loop(sd_device_monitor_get_event(monitor_client)) == 100);
}
static void test_sysattr_filter(sd_device *device, const char *sysattr) {
_cleanup_(sd_device_monitor_unrefp) sd_device_monitor *monitor_server = NULL, *monitor_client = NULL;
_cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL;
const char *syspath, *subsystem, *sysattr_value;
sd_device *d;
log_device_info(device, "/* %s(%s) */", __func__, sysattr);
assert_se(sd_device_get_syspath(device, &syspath) >= 0);
assert_se(sd_device_get_subsystem(device, &subsystem) >= 0);
assert_se(sd_device_get_sysattr_value(device, sysattr, &sysattr_value) >= 0);
assert_se(device_monitor_new_full(&monitor_server, MONITOR_GROUP_NONE, -1) >= 0);
assert_se(sd_device_monitor_start(monitor_server, NULL, NULL) >= 0);
assert_se(sd_event_source_set_description(sd_device_monitor_get_event_source(monitor_server), "sender") >= 0);
assert_se(device_monitor_new_full(&monitor_client, MONITOR_GROUP_NONE, -1) >= 0);
assert_se(device_monitor_allow_unicast_sender(monitor_client, monitor_server) >= 0);
/* The sysattr filter is not implemented in BPF yet, so the below device_monito_send_device()
* may cause EAGAIN. So, let's also filter devices with subsystem. */
assert_se(sd_device_monitor_filter_add_match_subsystem_devtype(monitor_client, subsystem, NULL) >= 0);
assert_se(sd_device_monitor_filter_add_match_sysattr(monitor_client, sysattr, sysattr_value, true) >= 0);
assert_se(sd_device_monitor_start(monitor_client, monitor_handler, (void *) syspath) >= 0);
assert_se(sd_event_source_set_description(sd_device_monitor_get_event_source(monitor_client), "receiver") >= 0);
assert_se(sd_device_enumerator_new(&e) >= 0);
assert_se(sd_device_enumerator_add_match_sysattr(e, sysattr, sysattr_value, false) >= 0);
FOREACH_DEVICE(e, d) {
const char *p;
assert_se(sd_device_get_syspath(d, &p) >= 0);
log_device_debug(d, "Sending device syspath:%s", p);
assert_se(device_monitor_send_device(monitor_server, monitor_client, d) >= 0);
}
log_device_info(device, "Sending device syspath:%s", syspath);
assert_se(device_monitor_send_device(monitor_server, monitor_client, device) >= 0);
assert_se(sd_event_loop(sd_device_monitor_get_event(monitor_client)) == 100);
}
static void test_parent_filter(sd_device *device) {
_cleanup_(sd_device_monitor_unrefp) sd_device_monitor *monitor_server = NULL, *monitor_client = NULL;
_cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL;
const char *syspath, *subsystem;
sd_device *parent, *d;
int r;
log_device_info(device, "/* %s */", __func__);
assert_se(sd_device_get_syspath(device, &syspath) >= 0);
assert_se(sd_device_get_subsystem(device, &subsystem) >= 0);
r = sd_device_get_parent(device, &parent);
if (r < 0)
return (void) log_device_info(device, "Device does not have parent, skipping.");
assert_se(device_monitor_new_full(&monitor_server, MONITOR_GROUP_NONE, -1) >= 0);
assert_se(sd_device_monitor_start(monitor_server, NULL, NULL) >= 0);
assert_se(sd_event_source_set_description(sd_device_monitor_get_event_source(monitor_server), "sender") >= 0);
assert_se(device_monitor_new_full(&monitor_client, MONITOR_GROUP_NONE, -1) >= 0);
assert_se(device_monitor_allow_unicast_sender(monitor_client, monitor_server) >= 0);
/* The parent filter is not implemented in BPF yet, so the below device_monito_send_device()
* may cause EAGAIN. So, let's also filter devices with subsystem. */
assert_se(sd_device_monitor_filter_add_match_subsystem_devtype(monitor_client, subsystem, NULL) >= 0);
assert_se(sd_device_monitor_filter_add_match_parent(monitor_client, parent, true) >= 0);
assert_se(sd_device_monitor_start(monitor_client, monitor_handler, (void *) syspath) >= 0);
assert_se(sd_event_source_set_description(sd_device_monitor_get_event_source(monitor_client), "receiver") >= 0);
assert_se(sd_device_enumerator_new(&e) >= 0);
FOREACH_DEVICE(e, d) {
const char *p;
assert_se(sd_device_get_syspath(d, &p) >= 0);
log_device_debug(d, "Sending device syspath:%s", p);
assert_se(device_monitor_send_device(monitor_server, monitor_client, d) >= 0);
}
log_device_info(device, "Sending device syspath:%s", syspath);
assert_se(device_monitor_send_device(monitor_server, monitor_client, device) >= 0);
assert_se(sd_event_loop(sd_device_monitor_get_event(monitor_client)) == 100);
}
static void test_sd_device_monitor_filter_remove(sd_device *device) {
_cleanup_(sd_device_monitor_unrefp) sd_device_monitor *monitor_server = NULL, *monitor_client = NULL;
const char *syspath;
@ -184,6 +308,7 @@ int main(int argc, char *argv[]) {
assert_se(sd_device_new_from_syspath(&loopback, "/sys/class/net/lo") >= 0);
assert_se(device_add_property(loopback, "ACTION", "add") >= 0);
assert_se(device_add_property(loopback, "SEQNUM", "10") >= 0);
assert_se(device_add_tag(loopback, "TEST_SD_DEVICE_MONITOR", true) >= 0);
test_send_receive_one(loopback, false, false, false);
test_send_receive_one(loopback, true, false, false);
@ -194,6 +319,8 @@ int main(int argc, char *argv[]) {
test_send_receive_one(loopback, true, true, true);
test_subsystem_filter(loopback);
test_tag_filter(loopback);
test_sysattr_filter(loopback, "ifindex");
test_sd_device_monitor_filter_remove(loopback);
test_device_copy_properties(loopback);
@ -214,5 +341,7 @@ int main(int argc, char *argv[]) {
test_send_receive_one(sda, false, true, true);
test_send_receive_one(sda, true, true, true);
test_parent_filter(sda);
return 0;
}