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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
commitb750101eb236130cf056c675997decbac904cc49 (patch)
treea5df1a06754bdd014cb975c051c83b01c9a97532 /src/core/unit-serialize.c
parentInitial commit. (diff)
downloadsystemd-b750101eb236130cf056c675997decbac904cc49.tar.xz
systemd-b750101eb236130cf056c675997decbac904cc49.zip
Adding upstream version 252.22.upstream/252.22
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/core/unit-serialize.c')
-rw-r--r--src/core/unit-serialize.c864
1 files changed, 864 insertions, 0 deletions
diff --git a/src/core/unit-serialize.c b/src/core/unit-serialize.c
new file mode 100644
index 0000000..21457dc
--- /dev/null
+++ b/src/core/unit-serialize.c
@@ -0,0 +1,864 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "bpf-socket-bind.h"
+#include "bus-util.h"
+#include "dbus.h"
+#include "fileio-label.h"
+#include "fileio.h"
+#include "format-util.h"
+#include "parse-util.h"
+#include "restrict-ifaces.h"
+#include "serialize.h"
+#include "string-table.h"
+#include "unit-serialize.h"
+#include "user-util.h"
+
+static int serialize_cgroup_mask(FILE *f, const char *key, CGroupMask mask) {
+ _cleanup_free_ char *s = NULL;
+ int r;
+
+ assert(f);
+ assert(key);
+
+ if (mask == 0)
+ return 0;
+
+ r = cg_mask_to_string(mask, &s);
+ if (r < 0)
+ return log_error_errno(r, "Failed to format cgroup mask: %m");
+
+ return serialize_item(f, key, s);
+}
+
+/* Make sure out values fit in the bitfield. */
+assert_cc(_UNIT_MARKER_MAX <= sizeof(((Unit){}).markers) * 8);
+
+static int serialize_markers(FILE *f, unsigned markers) {
+ assert(f);
+
+ if (markers == 0)
+ return 0;
+
+ fputs("markers=", f);
+ for (UnitMarker m = 0; m < _UNIT_MARKER_MAX; m++)
+ if (FLAGS_SET(markers, 1u << m))
+ fputs(unit_marker_to_string(m), f);
+ fputc('\n', f);
+ return 0;
+}
+
+static int deserialize_markers(Unit *u, const char *value) {
+ assert(u);
+ assert(value);
+ int r;
+
+ for (const char *p = value;;) {
+ _cleanup_free_ char *word = NULL;
+
+ r = extract_first_word(&p, &word, NULL, 0);
+ if (r <= 0)
+ return r;
+
+ UnitMarker m = unit_marker_from_string(word);
+ if (m < 0) {
+ log_unit_debug_errno(u, m, "Unknown unit marker \"%s\", ignoring.", word);
+ continue;
+ }
+
+ u->markers |= 1u << m;
+ }
+}
+
+static const char *const ip_accounting_metric_field[_CGROUP_IP_ACCOUNTING_METRIC_MAX] = {
+ [CGROUP_IP_INGRESS_BYTES] = "ip-accounting-ingress-bytes",
+ [CGROUP_IP_INGRESS_PACKETS] = "ip-accounting-ingress-packets",
+ [CGROUP_IP_EGRESS_BYTES] = "ip-accounting-egress-bytes",
+ [CGROUP_IP_EGRESS_PACKETS] = "ip-accounting-egress-packets",
+};
+
+static const char *const io_accounting_metric_field_base[_CGROUP_IO_ACCOUNTING_METRIC_MAX] = {
+ [CGROUP_IO_READ_BYTES] = "io-accounting-read-bytes-base",
+ [CGROUP_IO_WRITE_BYTES] = "io-accounting-write-bytes-base",
+ [CGROUP_IO_READ_OPERATIONS] = "io-accounting-read-operations-base",
+ [CGROUP_IO_WRITE_OPERATIONS] = "io-accounting-write-operations-base",
+};
+
+static const char *const io_accounting_metric_field_last[_CGROUP_IO_ACCOUNTING_METRIC_MAX] = {
+ [CGROUP_IO_READ_BYTES] = "io-accounting-read-bytes-last",
+ [CGROUP_IO_WRITE_BYTES] = "io-accounting-write-bytes-last",
+ [CGROUP_IO_READ_OPERATIONS] = "io-accounting-read-operations-last",
+ [CGROUP_IO_WRITE_OPERATIONS] = "io-accounting-write-operations-last",
+};
+
+int unit_serialize(Unit *u, FILE *f, FDSet *fds, bool switching_root) {
+ int r;
+
+ assert(u);
+ assert(f);
+ assert(fds);
+
+ if (switching_root && UNIT_VTABLE(u)->exclude_from_switch_root_serialization) {
+ /* In the new root, paths for mounts and automounts will be different, so it doesn't make
+ * much sense to serialize things. API file systems will be moved to the new root, but we
+ * don't have mount units for those. */
+ log_unit_debug(u, "not serializing before switch-root");
+ return 0;
+ }
+
+ /* Start marker */
+ fputs(u->id, f);
+ fputc('\n', f);
+
+ assert(!!UNIT_VTABLE(u)->serialize == !!UNIT_VTABLE(u)->deserialize_item);
+
+ if (UNIT_VTABLE(u)->serialize) {
+ r = UNIT_VTABLE(u)->serialize(u, f, fds);
+ if (r < 0)
+ return r;
+ }
+
+ (void) serialize_dual_timestamp(f, "state-change-timestamp", &u->state_change_timestamp);
+
+ (void) serialize_dual_timestamp(f, "inactive-exit-timestamp", &u->inactive_exit_timestamp);
+ (void) serialize_dual_timestamp(f, "active-enter-timestamp", &u->active_enter_timestamp);
+ (void) serialize_dual_timestamp(f, "active-exit-timestamp", &u->active_exit_timestamp);
+ (void) serialize_dual_timestamp(f, "inactive-enter-timestamp", &u->inactive_enter_timestamp);
+
+ (void) serialize_dual_timestamp(f, "condition-timestamp", &u->condition_timestamp);
+ (void) serialize_dual_timestamp(f, "assert-timestamp", &u->assert_timestamp);
+
+ if (dual_timestamp_is_set(&u->condition_timestamp))
+ (void) serialize_bool(f, "condition-result", u->condition_result);
+
+ if (dual_timestamp_is_set(&u->assert_timestamp))
+ (void) serialize_bool(f, "assert-result", u->assert_result);
+
+ (void) serialize_bool(f, "transient", u->transient);
+ (void) serialize_bool(f, "in-audit", u->in_audit);
+
+ (void) serialize_bool(f, "exported-invocation-id", u->exported_invocation_id);
+ (void) serialize_bool(f, "exported-log-level-max", u->exported_log_level_max);
+ (void) serialize_bool(f, "exported-log-extra-fields", u->exported_log_extra_fields);
+ (void) serialize_bool(f, "exported-log-rate-limit-interval", u->exported_log_ratelimit_interval);
+ (void) serialize_bool(f, "exported-log-rate-limit-burst", u->exported_log_ratelimit_burst);
+
+ (void) serialize_item_format(f, "cpu-usage-base", "%" PRIu64, u->cpu_usage_base);
+ if (u->cpu_usage_last != NSEC_INFINITY)
+ (void) serialize_item_format(f, "cpu-usage-last", "%" PRIu64, u->cpu_usage_last);
+
+ if (u->managed_oom_kill_last > 0)
+ (void) serialize_item_format(f, "managed-oom-kill-last", "%" PRIu64, u->managed_oom_kill_last);
+
+ if (u->oom_kill_last > 0)
+ (void) serialize_item_format(f, "oom-kill-last", "%" PRIu64, u->oom_kill_last);
+
+ for (CGroupIOAccountingMetric im = 0; im < _CGROUP_IO_ACCOUNTING_METRIC_MAX; im++) {
+ (void) serialize_item_format(f, io_accounting_metric_field_base[im], "%" PRIu64, u->io_accounting_base[im]);
+
+ if (u->io_accounting_last[im] != UINT64_MAX)
+ (void) serialize_item_format(f, io_accounting_metric_field_last[im], "%" PRIu64, u->io_accounting_last[im]);
+ }
+
+ if (u->cgroup_path)
+ (void) serialize_item(f, "cgroup", u->cgroup_path);
+
+ (void) serialize_bool(f, "cgroup-realized", u->cgroup_realized);
+ (void) serialize_cgroup_mask(f, "cgroup-realized-mask", u->cgroup_realized_mask);
+ (void) serialize_cgroup_mask(f, "cgroup-enabled-mask", u->cgroup_enabled_mask);
+ (void) serialize_cgroup_mask(f, "cgroup-invalidated-mask", u->cgroup_invalidated_mask);
+
+ (void) bpf_serialize_socket_bind(u, f, fds);
+
+ (void) bpf_program_serialize_attachment(f, fds, "ip-bpf-ingress-installed", u->ip_bpf_ingress_installed);
+ (void) bpf_program_serialize_attachment(f, fds, "ip-bpf-egress-installed", u->ip_bpf_egress_installed);
+ (void) bpf_program_serialize_attachment(f, fds, "bpf-device-control-installed", u->bpf_device_control_installed);
+ (void) bpf_program_serialize_attachment_set(f, fds, "ip-bpf-custom-ingress-installed", u->ip_bpf_custom_ingress_installed);
+ (void) bpf_program_serialize_attachment_set(f, fds, "ip-bpf-custom-egress-installed", u->ip_bpf_custom_egress_installed);
+
+ (void) serialize_restrict_network_interfaces(u, f, fds);
+
+ if (uid_is_valid(u->ref_uid))
+ (void) serialize_item_format(f, "ref-uid", UID_FMT, u->ref_uid);
+ if (gid_is_valid(u->ref_gid))
+ (void) serialize_item_format(f, "ref-gid", GID_FMT, u->ref_gid);
+
+ if (!sd_id128_is_null(u->invocation_id))
+ (void) serialize_item_format(f, "invocation-id", SD_ID128_FORMAT_STR, SD_ID128_FORMAT_VAL(u->invocation_id));
+
+ (void) serialize_item_format(f, "freezer-state", "%s", freezer_state_to_string(unit_freezer_state(u)));
+ (void) serialize_markers(f, u->markers);
+
+ bus_track_serialize(u->bus_track, f, "ref");
+
+ for (CGroupIPAccountingMetric m = 0; m < _CGROUP_IP_ACCOUNTING_METRIC_MAX; m++) {
+ uint64_t v;
+
+ r = unit_get_ip_accounting(u, m, &v);
+ if (r >= 0)
+ (void) serialize_item_format(f, ip_accounting_metric_field[m], "%" PRIu64, v);
+ }
+
+ if (!switching_root) {
+ if (u->job) {
+ fputs("job\n", f);
+ job_serialize(u->job, f);
+ }
+
+ if (u->nop_job) {
+ fputs("job\n", f);
+ job_serialize(u->nop_job, f);
+ }
+ }
+
+ /* End marker */
+ fputc('\n', f);
+ return 0;
+}
+
+static int unit_deserialize_job(Unit *u, FILE *f) {
+ _cleanup_(job_freep) Job *j = NULL;
+ int r;
+
+ assert(u);
+ assert(f);
+
+ j = job_new_raw(u);
+ if (!j)
+ return log_oom();
+
+ r = job_deserialize(j, f);
+ if (r < 0)
+ return r;
+
+ r = job_install_deserialized(j);
+ if (r < 0)
+ return r;
+
+ TAKE_PTR(j);
+ return 0;
+}
+
+#define MATCH_DESERIALIZE(key, l, v, parse_func, target) \
+ ({ \
+ bool _deserialize_matched = streq(l, key); \
+ if (_deserialize_matched) { \
+ int _deserialize_r = parse_func(v); \
+ if (_deserialize_r < 0) \
+ log_unit_debug_errno(u, _deserialize_r, \
+ "Failed to parse \"%s=%s\", ignoring.", l, v); \
+ else \
+ target = _deserialize_r; \
+ }; \
+ _deserialize_matched; \
+ })
+
+#define MATCH_DESERIALIZE_IMMEDIATE(key, l, v, parse_func, target) \
+ ({ \
+ bool _deserialize_matched = streq(l, key); \
+ if (_deserialize_matched) { \
+ int _deserialize_r = parse_func(v, &target); \
+ if (_deserialize_r < 0) \
+ log_unit_debug_errno(u, _deserialize_r, \
+ "Failed to parse \"%s=%s\", ignoring", l, v); \
+ }; \
+ _deserialize_matched; \
+ })
+
+int unit_deserialize(Unit *u, FILE *f, FDSet *fds) {
+ int r;
+
+ assert(u);
+ assert(f);
+ assert(fds);
+
+ for (;;) {
+ _cleanup_free_ char *line = NULL;
+ char *l, *v;
+ ssize_t m;
+ size_t k;
+
+ r = read_line(f, LONG_LINE_MAX, &line);
+ if (r < 0)
+ return log_error_errno(r, "Failed to read serialization line: %m");
+ if (r == 0) /* eof */
+ break;
+
+ l = strstrip(line);
+ if (isempty(l)) /* End marker */
+ break;
+
+ k = strcspn(l, "=");
+
+ if (l[k] == '=') {
+ l[k] = 0;
+ v = l+k+1;
+ } else
+ v = l+k;
+
+ if (streq(l, "job")) {
+ if (v[0] == '\0') {
+ /* New-style serialized job */
+ r = unit_deserialize_job(u, f);
+ if (r < 0)
+ return r;
+ } else /* Legacy for pre-44 */
+ log_unit_warning(u, "Update from too old systemd versions are unsupported, cannot deserialize job: %s", v);
+ continue;
+ } else if (streq(l, "state-change-timestamp")) {
+ (void) deserialize_dual_timestamp(v, &u->state_change_timestamp);
+ continue;
+ } else if (streq(l, "inactive-exit-timestamp")) {
+ (void) deserialize_dual_timestamp(v, &u->inactive_exit_timestamp);
+ continue;
+ } else if (streq(l, "active-enter-timestamp")) {
+ (void) deserialize_dual_timestamp(v, &u->active_enter_timestamp);
+ continue;
+ } else if (streq(l, "active-exit-timestamp")) {
+ (void) deserialize_dual_timestamp(v, &u->active_exit_timestamp);
+ continue;
+ } else if (streq(l, "inactive-enter-timestamp")) {
+ (void) deserialize_dual_timestamp(v, &u->inactive_enter_timestamp);
+ continue;
+ } else if (streq(l, "condition-timestamp")) {
+ (void) deserialize_dual_timestamp(v, &u->condition_timestamp);
+ continue;
+ } else if (streq(l, "assert-timestamp")) {
+ (void) deserialize_dual_timestamp(v, &u->assert_timestamp);
+ continue;
+
+ } else if (MATCH_DESERIALIZE("condition-result", l, v, parse_boolean, u->condition_result))
+ continue;
+
+ else if (MATCH_DESERIALIZE("assert-result", l, v, parse_boolean, u->assert_result))
+ continue;
+
+ else if (MATCH_DESERIALIZE("transient", l, v, parse_boolean, u->transient))
+ continue;
+
+ else if (MATCH_DESERIALIZE("in-audit", l, v, parse_boolean, u->in_audit))
+ continue;
+
+ else if (MATCH_DESERIALIZE("exported-invocation-id", l, v, parse_boolean, u->exported_invocation_id))
+ continue;
+
+ else if (MATCH_DESERIALIZE("exported-log-level-max", l, v, parse_boolean, u->exported_log_level_max))
+ continue;
+
+ else if (MATCH_DESERIALIZE("exported-log-extra-fields", l, v, parse_boolean, u->exported_log_extra_fields))
+ continue;
+
+ else if (MATCH_DESERIALIZE("exported-log-rate-limit-interval", l, v, parse_boolean, u->exported_log_ratelimit_interval))
+ continue;
+
+ else if (MATCH_DESERIALIZE("exported-log-rate-limit-burst", l, v, parse_boolean, u->exported_log_ratelimit_burst))
+ continue;
+
+ else if (MATCH_DESERIALIZE_IMMEDIATE("cpu-usage-base", l, v, safe_atou64, u->cpu_usage_base) ||
+ MATCH_DESERIALIZE_IMMEDIATE("cpuacct-usage-base", l, v, safe_atou64, u->cpu_usage_base))
+ continue;
+
+ else if (MATCH_DESERIALIZE_IMMEDIATE("cpu-usage-last", l, v, safe_atou64, u->cpu_usage_last))
+ continue;
+
+ else if (MATCH_DESERIALIZE_IMMEDIATE("managed-oom-kill-last", l, v, safe_atou64, u->managed_oom_kill_last))
+ continue;
+
+ else if (MATCH_DESERIALIZE_IMMEDIATE("oom-kill-last", l, v, safe_atou64, u->oom_kill_last))
+ continue;
+
+ else if (streq(l, "cgroup")) {
+ r = unit_set_cgroup_path(u, v);
+ if (r < 0)
+ log_unit_debug_errno(u, r, "Failed to set cgroup path %s, ignoring: %m", v);
+
+ (void) unit_watch_cgroup(u);
+ (void) unit_watch_cgroup_memory(u);
+
+ continue;
+
+ } else if (MATCH_DESERIALIZE("cgroup-realized", l, v, parse_boolean, u->cgroup_realized))
+ continue;
+
+ else if (MATCH_DESERIALIZE_IMMEDIATE("cgroup-realized-mask", l, v, cg_mask_from_string, u->cgroup_realized_mask))
+ continue;
+
+ else if (MATCH_DESERIALIZE_IMMEDIATE("cgroup-enabled-mask", l, v, cg_mask_from_string, u->cgroup_enabled_mask))
+ continue;
+
+ else if (MATCH_DESERIALIZE_IMMEDIATE("cgroup-invalidated-mask", l, v, cg_mask_from_string, u->cgroup_invalidated_mask))
+ continue;
+
+ else if (STR_IN_SET(l, "ipv4-socket-bind-bpf-link-fd", "ipv6-socket-bind-bpf-link-fd")) {
+ int fd;
+
+ if (safe_atoi(v, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
+ log_unit_debug(u, "Failed to parse %s value: %s, ignoring.", l, v);
+ else {
+ if (fdset_remove(fds, fd) < 0) {
+ log_unit_debug(u, "Failed to remove %s value=%d from fdset", l, fd);
+ continue;
+ }
+
+ (void) bpf_socket_bind_add_initial_link_fd(u, fd);
+ }
+ continue;
+
+ } else if (streq(l, "ip-bpf-ingress-installed")) {
+ (void) bpf_program_deserialize_attachment(v, fds, &u->ip_bpf_ingress_installed);
+ continue;
+ } else if (streq(l, "ip-bpf-egress-installed")) {
+ (void) bpf_program_deserialize_attachment(v, fds, &u->ip_bpf_egress_installed);
+ continue;
+ } else if (streq(l, "bpf-device-control-installed")) {
+ (void) bpf_program_deserialize_attachment(v, fds, &u->bpf_device_control_installed);
+ continue;
+
+ } else if (streq(l, "ip-bpf-custom-ingress-installed")) {
+ (void) bpf_program_deserialize_attachment_set(v, fds, &u->ip_bpf_custom_ingress_installed);
+ continue;
+ } else if (streq(l, "ip-bpf-custom-egress-installed")) {
+ (void) bpf_program_deserialize_attachment_set(v, fds, &u->ip_bpf_custom_egress_installed);
+ continue;
+
+ } else if (streq(l, "restrict-ifaces-bpf-fd")) {
+ int fd;
+
+ if (safe_atoi(v, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) {
+ log_unit_debug(u, "Failed to parse restrict-ifaces-bpf-fd value: %s", v);
+ continue;
+ }
+ if (fdset_remove(fds, fd) < 0) {
+ log_unit_debug(u, "Failed to remove restrict-ifaces-bpf-fd %d from fdset", fd);
+ continue;
+ }
+
+ (void) restrict_network_interfaces_add_initial_link_fd(u, fd);
+ continue;
+
+ } else if (streq(l, "ref-uid")) {
+ uid_t uid;
+
+ r = parse_uid(v, &uid);
+ if (r < 0)
+ log_unit_debug(u, "Failed to parse \"%s=%s\", ignoring.", l, v);
+ else
+ unit_ref_uid_gid(u, uid, GID_INVALID);
+ continue;
+
+ } else if (streq(l, "ref-gid")) {
+ gid_t gid;
+
+ r = parse_gid(v, &gid);
+ if (r < 0)
+ log_unit_debug(u, "Failed to parse \"%s=%s\", ignoring.", l, v);
+ else
+ unit_ref_uid_gid(u, UID_INVALID, gid);
+ continue;
+
+ } else if (streq(l, "ref")) {
+ r = strv_extend(&u->deserialized_refs, v);
+ if (r < 0)
+ return log_oom();
+ continue;
+
+ } else if (streq(l, "invocation-id")) {
+ sd_id128_t id;
+
+ r = sd_id128_from_string(v, &id);
+ if (r < 0)
+ log_unit_debug(u, "Failed to parse \"%s=%s\", ignoring.", l, v);
+ else {
+ r = unit_set_invocation_id(u, id);
+ if (r < 0)
+ log_unit_warning_errno(u, r, "Failed to set invocation ID for unit: %m");
+ }
+
+ continue;
+
+ } else if (MATCH_DESERIALIZE("freezer-state", l, v, freezer_state_from_string, u->freezer_state))
+ continue;
+
+ else if (streq(l, "markers")) {
+ r = deserialize_markers(u, v);
+ if (r < 0)
+ log_unit_debug_errno(u, r, "Failed to deserialize \"%s=%s\", ignoring: %m", l, v);
+ continue;
+ }
+
+ /* Check if this is an IP accounting metric serialization field */
+ m = string_table_lookup(ip_accounting_metric_field, ELEMENTSOF(ip_accounting_metric_field), l);
+ if (m >= 0) {
+ uint64_t c;
+
+ r = safe_atou64(v, &c);
+ if (r < 0)
+ log_unit_debug(u, "Failed to parse IP accounting value %s, ignoring.", v);
+ else
+ u->ip_accounting_extra[m] = c;
+ continue;
+ }
+
+ m = string_table_lookup(io_accounting_metric_field_base, ELEMENTSOF(io_accounting_metric_field_base), l);
+ if (m >= 0) {
+ uint64_t c;
+
+ r = safe_atou64(v, &c);
+ if (r < 0)
+ log_unit_debug(u, "Failed to parse IO accounting base value %s, ignoring.", v);
+ else
+ u->io_accounting_base[m] = c;
+ continue;
+ }
+
+ m = string_table_lookup(io_accounting_metric_field_last, ELEMENTSOF(io_accounting_metric_field_last), l);
+ if (m >= 0) {
+ uint64_t c;
+
+ r = safe_atou64(v, &c);
+ if (r < 0)
+ log_unit_debug(u, "Failed to parse IO accounting last value %s, ignoring.", v);
+ else
+ u->io_accounting_last[m] = c;
+ continue;
+ }
+
+ r = exec_runtime_deserialize_compat(u, l, v, fds);
+ if (r < 0) {
+ log_unit_warning(u, "Failed to deserialize runtime parameter '%s', ignoring.", l);
+ continue;
+ } else if (r > 0)
+ /* Returns positive if key was handled by the call */
+ continue;
+
+ if (UNIT_VTABLE(u)->deserialize_item) {
+ r = UNIT_VTABLE(u)->deserialize_item(u, l, v, fds);
+ if (r < 0)
+ log_unit_warning(u, "Failed to deserialize unit parameter '%s', ignoring.", l);
+ }
+ }
+
+ /* Versions before 228 did not carry a state change timestamp. In this case, take the current
+ * time. This is useful, so that timeouts based on this timestamp don't trigger too early, and is
+ * in-line with the logic from before 228 where the base for timeouts was not persistent across
+ * reboots. */
+
+ if (!dual_timestamp_is_set(&u->state_change_timestamp))
+ dual_timestamp_get(&u->state_change_timestamp);
+
+ /* Let's make sure that everything that is deserialized also gets any potential new cgroup settings
+ * applied after we are done. For that we invalidate anything already realized, so that we can
+ * realize it again. */
+ if (u->cgroup_realized) {
+ unit_invalidate_cgroup(u, _CGROUP_MASK_ALL);
+ unit_invalidate_cgroup_bpf(u);
+ }
+
+ return 0;
+}
+
+int unit_deserialize_skip(FILE *f) {
+ int r;
+ assert(f);
+
+ /* Skip serialized data for this unit. We don't know what it is. */
+
+ for (;;) {
+ _cleanup_free_ char *line = NULL;
+ char *l;
+
+ r = read_line(f, LONG_LINE_MAX, &line);
+ if (r < 0)
+ return log_error_errno(r, "Failed to read serialization line: %m");
+ if (r == 0)
+ return 0;
+
+ l = strstrip(line);
+
+ /* End marker */
+ if (isempty(l))
+ return 1;
+ }
+}
+
+static void print_unit_dependency_mask(FILE *f, const char *kind, UnitDependencyMask mask, bool *space) {
+ const struct {
+ UnitDependencyMask mask;
+ const char *name;
+ } table[] = {
+ { UNIT_DEPENDENCY_FILE, "file" },
+ { UNIT_DEPENDENCY_IMPLICIT, "implicit" },
+ { UNIT_DEPENDENCY_DEFAULT, "default" },
+ { UNIT_DEPENDENCY_UDEV, "udev" },
+ { UNIT_DEPENDENCY_PATH, "path" },
+ { UNIT_DEPENDENCY_MOUNT_FILE, "mount-file" },
+ { UNIT_DEPENDENCY_MOUNTINFO, "mountinfo" },
+ { UNIT_DEPENDENCY_PROC_SWAP, "proc-swap" },
+ { UNIT_DEPENDENCY_SLICE_PROPERTY, "slice-property" },
+ };
+
+ assert(f);
+ assert(kind);
+ assert(space);
+
+ for (size_t i = 0; i < ELEMENTSOF(table); i++) {
+
+ if (mask == 0)
+ break;
+
+ if (FLAGS_SET(mask, table[i].mask)) {
+ if (*space)
+ fputc(' ', f);
+ else
+ *space = true;
+
+ fputs(kind, f);
+ fputs("-", f);
+ fputs(table[i].name, f);
+
+ mask &= ~table[i].mask;
+ }
+ }
+
+ assert(mask == 0);
+}
+
+void unit_dump(Unit *u, FILE *f, const char *prefix) {
+ char *t;
+ const char *prefix2;
+ Unit *following;
+ _cleanup_set_free_ Set *following_set = NULL;
+ CGroupMask m;
+ int r;
+
+ assert(u);
+ assert(u->type >= 0);
+
+ prefix = strempty(prefix);
+ prefix2 = strjoina(prefix, "\t");
+
+ fprintf(f,
+ "%s-> Unit %s:\n",
+ prefix, u->id);
+
+ SET_FOREACH(t, u->aliases)
+ fprintf(f, "%s\tAlias: %s\n", prefix, t);
+
+ fprintf(f,
+ "%s\tDescription: %s\n"
+ "%s\tInstance: %s\n"
+ "%s\tUnit Load State: %s\n"
+ "%s\tUnit Active State: %s\n"
+ "%s\tState Change Timestamp: %s\n"
+ "%s\tInactive Exit Timestamp: %s\n"
+ "%s\tActive Enter Timestamp: %s\n"
+ "%s\tActive Exit Timestamp: %s\n"
+ "%s\tInactive Enter Timestamp: %s\n"
+ "%s\tMay GC: %s\n"
+ "%s\tNeed Daemon Reload: %s\n"
+ "%s\tTransient: %s\n"
+ "%s\tPerpetual: %s\n"
+ "%s\tGarbage Collection Mode: %s\n",
+ prefix, unit_description(u),
+ prefix, strna(u->instance),
+ prefix, unit_load_state_to_string(u->load_state),
+ prefix, unit_active_state_to_string(unit_active_state(u)),
+ prefix, strna(FORMAT_TIMESTAMP(u->state_change_timestamp.realtime)),
+ prefix, strna(FORMAT_TIMESTAMP(u->inactive_exit_timestamp.realtime)),
+ prefix, strna(FORMAT_TIMESTAMP(u->active_enter_timestamp.realtime)),
+ prefix, strna(FORMAT_TIMESTAMP(u->active_exit_timestamp.realtime)),
+ prefix, strna(FORMAT_TIMESTAMP(u->inactive_enter_timestamp.realtime)),
+ prefix, yes_no(unit_may_gc(u)),
+ prefix, yes_no(unit_need_daemon_reload(u)),
+ prefix, yes_no(u->transient),
+ prefix, yes_no(u->perpetual),
+ prefix, collect_mode_to_string(u->collect_mode));
+
+ if (u->markers != 0) {
+ fprintf(f, "%s\tMarkers:", prefix);
+
+ for (UnitMarker marker = 0; marker < _UNIT_MARKER_MAX; marker++)
+ if (FLAGS_SET(u->markers, 1u << marker))
+ fprintf(f, " %s", unit_marker_to_string(marker));
+ fputs("\n", f);
+ }
+
+ if (UNIT_HAS_CGROUP_CONTEXT(u)) {
+ fprintf(f,
+ "%s\tSlice: %s\n"
+ "%s\tCGroup: %s\n"
+ "%s\tCGroup realized: %s\n",
+ prefix, strna(unit_slice_name(u)),
+ prefix, strna(u->cgroup_path),
+ prefix, yes_no(u->cgroup_realized));
+
+ if (u->cgroup_realized_mask != 0) {
+ _cleanup_free_ char *s = NULL;
+ (void) cg_mask_to_string(u->cgroup_realized_mask, &s);
+ fprintf(f, "%s\tCGroup realized mask: %s\n", prefix, strnull(s));
+ }
+
+ if (u->cgroup_enabled_mask != 0) {
+ _cleanup_free_ char *s = NULL;
+ (void) cg_mask_to_string(u->cgroup_enabled_mask, &s);
+ fprintf(f, "%s\tCGroup enabled mask: %s\n", prefix, strnull(s));
+ }
+
+ m = unit_get_own_mask(u);
+ if (m != 0) {
+ _cleanup_free_ char *s = NULL;
+ (void) cg_mask_to_string(m, &s);
+ fprintf(f, "%s\tCGroup own mask: %s\n", prefix, strnull(s));
+ }
+
+ m = unit_get_members_mask(u);
+ if (m != 0) {
+ _cleanup_free_ char *s = NULL;
+ (void) cg_mask_to_string(m, &s);
+ fprintf(f, "%s\tCGroup members mask: %s\n", prefix, strnull(s));
+ }
+
+ m = unit_get_delegate_mask(u);
+ if (m != 0) {
+ _cleanup_free_ char *s = NULL;
+ (void) cg_mask_to_string(m, &s);
+ fprintf(f, "%s\tCGroup delegate mask: %s\n", prefix, strnull(s));
+ }
+ }
+
+ if (!sd_id128_is_null(u->invocation_id))
+ fprintf(f, "%s\tInvocation ID: " SD_ID128_FORMAT_STR "\n",
+ prefix, SD_ID128_FORMAT_VAL(u->invocation_id));
+
+ STRV_FOREACH(j, u->documentation)
+ fprintf(f, "%s\tDocumentation: %s\n", prefix, *j);
+
+ if (u->access_selinux_context)
+ fprintf(f, "%s\tAccess SELinux Context: %s\n", prefix, u->access_selinux_context);
+
+ following = unit_following(u);
+ if (following)
+ fprintf(f, "%s\tFollowing: %s\n", prefix, following->id);
+
+ r = unit_following_set(u, &following_set);
+ if (r >= 0) {
+ Unit *other;
+
+ SET_FOREACH(other, following_set)
+ fprintf(f, "%s\tFollowing Set Member: %s\n", prefix, other->id);
+ }
+
+ if (u->fragment_path)
+ fprintf(f, "%s\tFragment Path: %s\n", prefix, u->fragment_path);
+
+ if (u->source_path)
+ fprintf(f, "%s\tSource Path: %s\n", prefix, u->source_path);
+
+ STRV_FOREACH(j, u->dropin_paths)
+ fprintf(f, "%s\tDropIn Path: %s\n", prefix, *j);
+
+ if (u->failure_action != EMERGENCY_ACTION_NONE)
+ fprintf(f, "%s\tFailure Action: %s\n", prefix, emergency_action_to_string(u->failure_action));
+ if (u->failure_action_exit_status >= 0)
+ fprintf(f, "%s\tFailure Action Exit Status: %i\n", prefix, u->failure_action_exit_status);
+ if (u->success_action != EMERGENCY_ACTION_NONE)
+ fprintf(f, "%s\tSuccess Action: %s\n", prefix, emergency_action_to_string(u->success_action));
+ if (u->success_action_exit_status >= 0)
+ fprintf(f, "%s\tSuccess Action Exit Status: %i\n", prefix, u->success_action_exit_status);
+
+ if (u->job_timeout != USEC_INFINITY)
+ fprintf(f, "%s\tJob Timeout: %s\n", prefix, FORMAT_TIMESPAN(u->job_timeout, 0));
+
+ if (u->job_timeout_action != EMERGENCY_ACTION_NONE)
+ fprintf(f, "%s\tJob Timeout Action: %s\n", prefix, emergency_action_to_string(u->job_timeout_action));
+
+ if (u->job_timeout_reboot_arg)
+ fprintf(f, "%s\tJob Timeout Reboot Argument: %s\n", prefix, u->job_timeout_reboot_arg);
+
+ condition_dump_list(u->conditions, f, prefix, condition_type_to_string);
+ condition_dump_list(u->asserts, f, prefix, assert_type_to_string);
+
+ if (dual_timestamp_is_set(&u->condition_timestamp))
+ fprintf(f,
+ "%s\tCondition Timestamp: %s\n"
+ "%s\tCondition Result: %s\n",
+ prefix, strna(FORMAT_TIMESTAMP(u->condition_timestamp.realtime)),
+ prefix, yes_no(u->condition_result));
+
+ if (dual_timestamp_is_set(&u->assert_timestamp))
+ fprintf(f,
+ "%s\tAssert Timestamp: %s\n"
+ "%s\tAssert Result: %s\n",
+ prefix, strna(FORMAT_TIMESTAMP(u->assert_timestamp.realtime)),
+ prefix, yes_no(u->assert_result));
+
+ for (UnitDependency d = 0; d < _UNIT_DEPENDENCY_MAX; d++) {
+ UnitDependencyInfo di;
+ Unit *other;
+
+ HASHMAP_FOREACH_KEY(di.data, other, unit_get_dependencies(u, d)) {
+ bool space = false;
+
+ fprintf(f, "%s\t%s: %s (", prefix, unit_dependency_to_string(d), other->id);
+
+ print_unit_dependency_mask(f, "origin", di.origin_mask, &space);
+ print_unit_dependency_mask(f, "destination", di.destination_mask, &space);
+
+ fputs(")\n", f);
+ }
+ }
+
+ if (!hashmap_isempty(u->requires_mounts_for)) {
+ UnitDependencyInfo di;
+ const char *path;
+
+ HASHMAP_FOREACH_KEY(di.data, path, u->requires_mounts_for) {
+ bool space = false;
+
+ fprintf(f, "%s\tRequiresMountsFor: %s (", prefix, path);
+
+ print_unit_dependency_mask(f, "origin", di.origin_mask, &space);
+ print_unit_dependency_mask(f, "destination", di.destination_mask, &space);
+
+ fputs(")\n", f);
+ }
+ }
+
+ if (u->load_state == UNIT_LOADED) {
+
+ fprintf(f,
+ "%s\tStopWhenUnneeded: %s\n"
+ "%s\tRefuseManualStart: %s\n"
+ "%s\tRefuseManualStop: %s\n"
+ "%s\tDefaultDependencies: %s\n"
+ "%s\tOnSuccessJobMode: %s\n"
+ "%s\tOnFailureJobMode: %s\n"
+ "%s\tIgnoreOnIsolate: %s\n",
+ prefix, yes_no(u->stop_when_unneeded),
+ prefix, yes_no(u->refuse_manual_start),
+ prefix, yes_no(u->refuse_manual_stop),
+ prefix, yes_no(u->default_dependencies),
+ prefix, job_mode_to_string(u->on_success_job_mode),
+ prefix, job_mode_to_string(u->on_failure_job_mode),
+ prefix, yes_no(u->ignore_on_isolate));
+
+ if (UNIT_VTABLE(u)->dump)
+ UNIT_VTABLE(u)->dump(u, f, prefix2);
+
+ } else if (u->load_state == UNIT_MERGED)
+ fprintf(f,
+ "%s\tMerged into: %s\n",
+ prefix, u->merged_into->id);
+ else if (u->load_state == UNIT_ERROR) {
+ errno = abs(u->load_error);
+ fprintf(f, "%s\tLoad Error Code: %m\n", prefix);
+ }
+
+ for (const char *n = sd_bus_track_first(u->bus_track); n; n = sd_bus_track_next(u->bus_track))
+ fprintf(f, "%s\tBus Ref: %s\n", prefix, n);
+
+ if (u->job)
+ job_dump(u->job, f, prefix2);
+
+ if (u->nop_job)
+ job_dump(u->nop_job, f, prefix2);
+}