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Diffstat (limited to '')
| -rw-r--r-- | src/libsystemd/sd-device/test-sd-device-monitor.c | 344 |
1 files changed, 344 insertions, 0 deletions
diff --git a/src/libsystemd/sd-device/test-sd-device-monitor.c b/src/libsystemd/sd-device/test-sd-device-monitor.c new file mode 100644 index 0000000..e124e00 --- /dev/null +++ b/src/libsystemd/sd-device/test-sd-device-monitor.c @@ -0,0 +1,344 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include <stdbool.h> +#include <unistd.h> + +#include "sd-device.h" +#include "sd-event.h" + +#include "device-monitor-private.h" +#include "device-private.h" +#include "device-util.h" +#include "macro.h" +#include "path-util.h" +#include "stat-util.h" +#include "string-util.h" +#include "tests.h" +#include "virt.h" + +static int monitor_handler(sd_device_monitor *m, sd_device *d, void *userdata) { + const char *s, *syspath = userdata; + + assert_se(sd_device_get_syspath(d, &s) >= 0); + assert_se(streq(s, syspath)); + + return sd_event_exit(sd_device_monitor_get_event(m), 100); +} + +static void test_receive_device_fail(void) { + _cleanup_(sd_device_monitor_unrefp) sd_device_monitor *monitor_server = NULL, *monitor_client = NULL; + _cleanup_(sd_device_unrefp) sd_device *loopback = NULL; + const char *syspath; + + log_info("/* %s */", __func__); + + /* Try to send device with invalid action and without seqnum. */ + assert_se(sd_device_new_from_syspath(&loopback, "/sys/class/net/lo") >= 0); + assert_se(device_add_property(loopback, "ACTION", "hoge") >= 0); + + assert_se(sd_device_get_syspath(loopback, &syspath) >= 0); + + assert_se(device_monitor_new_full(&monitor_server, MONITOR_GROUP_NONE, -1) >= 0); + assert_se(sd_device_monitor_set_description(monitor_server, "sender") >= 0); + assert_se(sd_device_monitor_start(monitor_server, NULL, NULL) >= 0); + + assert_se(device_monitor_new_full(&monitor_client, MONITOR_GROUP_NONE, -1) >= 0); + assert_se(sd_device_monitor_set_description(monitor_client, "receiver") >= 0); + assert_se(device_monitor_allow_unicast_sender(monitor_client, monitor_server) >= 0); + assert_se(sd_device_monitor_start(monitor_client, monitor_handler, (void *) syspath) >= 0); + + assert_se(device_monitor_send_device(monitor_server, monitor_client, loopback) >= 0); + assert_se(sd_event_run(sd_device_monitor_get_event(monitor_client), 0) >= 0); +} + +static void test_send_receive_one(sd_device *device, bool subsystem_filter, bool tag_filter, bool use_bpf) { + _cleanup_(sd_device_monitor_unrefp) sd_device_monitor *monitor_server = NULL, *monitor_client = NULL; + const char *syspath, *subsystem, *devtype = NULL; + + log_device_info(device, "/* %s(subsystem_filter=%s, tag_filter=%s, use_bpf=%s) */", __func__, + true_false(subsystem_filter), true_false(tag_filter), true_false(use_bpf)); + + 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_set_description(monitor_server, "sender") >= 0); + assert_se(sd_device_monitor_start(monitor_server, NULL, NULL) >= 0); + + assert_se(device_monitor_new_full(&monitor_client, MONITOR_GROUP_NONE, -1) >= 0); + assert_se(sd_device_monitor_set_description(monitor_client, "receiver") >= 0); + assert_se(device_monitor_allow_unicast_sender(monitor_client, monitor_server) >= 0); + assert_se(sd_device_monitor_start(monitor_client, monitor_handler, (void *) syspath) >= 0); + + if (subsystem_filter) { + assert_se(sd_device_get_subsystem(device, &subsystem) >= 0); + (void) sd_device_get_devtype(device, &devtype); + assert_se(sd_device_monitor_filter_add_match_subsystem_devtype(monitor_client, subsystem, devtype) >= 0); + } + + if (tag_filter) + FOREACH_DEVICE_TAG(device, tag) + assert_se(sd_device_monitor_filter_add_match_tag(monitor_client, tag) >= 0); + + if ((subsystem_filter || tag_filter) && use_bpf) + assert_se(sd_device_monitor_filter_update(monitor_client) >= 0); + + 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_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; + + log_device_info(device, "/* %s */", __func__); + + assert_se(sd_device_get_syspath(device, &syspath) >= 0); + assert_se(sd_device_get_subsystem(device, &subsystem) >= 0); + + assert_se(device_monitor_new_full(&monitor_server, MONITOR_GROUP_NONE, -1) >= 0); + assert_se(sd_device_monitor_set_description(monitor_server, "sender") >= 0); + assert_se(sd_device_monitor_start(monitor_server, NULL, NULL) >= 0); + + assert_se(device_monitor_new_full(&monitor_client, MONITOR_GROUP_NONE, -1) >= 0); + assert_se(sd_device_monitor_set_description(monitor_client, "receiver") >= 0); + assert_se(device_monitor_allow_unicast_sender(monitor_client, monitor_server) >= 0); + assert_se(sd_device_monitor_filter_add_match_subsystem_devtype(monitor_client, subsystem, NULL) >= 0); + assert_se(sd_device_monitor_start(monitor_client, monitor_handler, (void *) syspath) >= 0); + + 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); + + assert_se(device_add_property(d, "ACTION", "add") >= 0); + assert_se(device_add_property(d, "SEQNUM", "10") >= 0); + + 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_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; + + 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_set_description(monitor_server, "sender") >= 0); + assert_se(sd_device_monitor_start(monitor_server, NULL, NULL) >= 0); + + assert_se(device_monitor_new_full(&monitor_client, MONITOR_GROUP_NONE, -1) >= 0); + assert_se(sd_device_monitor_set_description(monitor_client, "receiver") >= 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_device_enumerator_new(&e) >= 0); + FOREACH_DEVICE(e, d) { + const char *p; + + assert_se(sd_device_get_syspath(d, &p) >= 0); + + assert_se(device_add_property(d, "ACTION", "add") >= 0); + assert_se(device_add_property(d, "SEQNUM", "10") >= 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, *sysattr_value; + + log_device_info(device, "/* %s(%s) */", __func__, sysattr); + + assert_se(sd_device_get_syspath(device, &syspath) >= 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_set_description(monitor_server, "sender") >= 0); + assert_se(sd_device_monitor_start(monitor_server, NULL, NULL) >= 0); + + assert_se(device_monitor_new_full(&monitor_client, MONITOR_GROUP_NONE, -1) >= 0); + assert_se(sd_device_monitor_set_description(monitor_client, "receiver") >= 0); + assert_se(device_monitor_allow_unicast_sender(monitor_client, monitor_server) >= 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_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); + + assert_se(device_add_property(d, "ACTION", "add") >= 0); + assert_se(device_add_property(d, "SEQNUM", "10") >= 0); + + log_device_debug(d, "Sending device syspath:%s", p); + assert_se(device_monitor_send_device(monitor_server, monitor_client, d) >= 0); + + /* The sysattr filter is not implemented in BPF yet. So, sending multiple devices may fills up + * buffer and device_monitor_send_device() may return EAGAIN. Let's send one device here, + * which should be filtered out by the receiver. */ + break; + } + + 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, *parent_syspath; + sd_device *parent; + int r; + + log_device_info(device, "/* %s */", __func__); + + assert_se(sd_device_get_syspath(device, &syspath) >= 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(sd_device_get_syspath(parent, &parent_syspath) >= 0); + + assert_se(device_monitor_new_full(&monitor_server, MONITOR_GROUP_NONE, -1) >= 0); + assert_se(sd_device_monitor_set_description(monitor_server, "sender") >= 0); + assert_se(sd_device_monitor_start(monitor_server, NULL, NULL) >= 0); + + assert_se(device_monitor_new_full(&monitor_client, MONITOR_GROUP_NONE, -1) >= 0); + assert_se(sd_device_monitor_set_description(monitor_client, "receiver") >= 0); + assert_se(device_monitor_allow_unicast_sender(monitor_client, monitor_server) >= 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_device_enumerator_new(&e) >= 0); + FOREACH_DEVICE(e, d) { + const char *p; + + assert_se(sd_device_get_syspath(d, &p) >= 0); + if (path_startswith(p, parent_syspath)) + continue; + + assert_se(device_add_property(d, "ACTION", "add") >= 0); + assert_se(device_add_property(d, "SEQNUM", "10") >= 0); + + log_device_debug(d, "Sending device syspath:%s", p); + assert_se(device_monitor_send_device(monitor_server, monitor_client, d) >= 0); + + /* The parent filter is not implemented in BPF yet. So, sending multiple devices may fills up + * buffer and device_monitor_send_device() may return EAGAIN. Let's send one device here, + * which should be filtered out by the receiver. */ + break; + } + + 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; + + 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_set_description(monitor_server, "sender") >= 0); + assert_se(sd_device_monitor_start(monitor_server, NULL, NULL) >= 0); + + assert_se(device_monitor_new_full(&monitor_client, MONITOR_GROUP_NONE, -1) >= 0); + assert_se(sd_device_monitor_set_description(monitor_client, "receiver") >= 0); + assert_se(device_monitor_allow_unicast_sender(monitor_client, monitor_server) >= 0); + assert_se(sd_device_monitor_start(monitor_client, monitor_handler, (void *) syspath) >= 0); + + assert_se(sd_device_monitor_filter_add_match_subsystem_devtype(monitor_client, "hoge", NULL) >= 0); + assert_se(sd_device_monitor_filter_update(monitor_client) >= 0); + + assert_se(device_monitor_send_device(monitor_server, monitor_client, device) >= 0); + assert_se(sd_event_run(sd_device_monitor_get_event(monitor_client), 0) >= 0); + + assert_se(sd_device_monitor_filter_remove(monitor_client) >= 0); + + 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); +} + +int main(int argc, char *argv[]) { + _cleanup_(sd_device_unrefp) sd_device *loopback = NULL, *sda = NULL; + int r; + + test_setup_logging(LOG_INFO); + + if (getuid() != 0) + return log_tests_skipped("not root"); + + if (path_is_read_only_fs("/sys") > 0) + return log_tests_skipped("Running in container"); + + test_receive_device_fail(); + + 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); + test_send_receive_one(loopback, false, true, false); + test_send_receive_one(loopback, true, true, false); + test_send_receive_one(loopback, true, false, true); + test_send_receive_one(loopback, false, true, true); + 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); + + r = sd_device_new_from_subsystem_sysname(&sda, "block", "sda"); + if (r < 0) { + log_info_errno(r, "Failed to create sd_device for sda, skipping remaining tests: %m"); + return 0; + } + + assert_se(device_add_property(sda, "ACTION", "change") >= 0); + assert_se(device_add_property(sda, "SEQNUM", "11") >= 0); + + test_send_receive_one(sda, false, false, false); + test_send_receive_one(sda, true, false, false); + test_send_receive_one(sda, false, true, false); + test_send_receive_one(sda, true, true, false); + test_send_receive_one(sda, true, false, true); + test_send_receive_one(sda, false, true, true); + test_send_receive_one(sda, true, true, true); + + test_parent_filter(sda); + + return 0; +} |