diff options
Diffstat (limited to 'src/core/unit-serialize.c')
| -rw-r--r-- | src/core/unit-serialize.c | 890 |
1 files changed, 890 insertions, 0 deletions
diff --git a/src/core/unit-serialize.c b/src/core/unit-serialize.c new file mode 100644 index 0000000..fe4221c --- /dev/null +++ b/src/core/unit-serialize.c @@ -0,0 +1,890 @@ +/* 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_table[_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", +}; + +DEFINE_PRIVATE_STRING_TABLE_LOOKUP(ip_accounting_metric_field, CGroupIPAccountingMetric); + +static const char* const io_accounting_metric_field_base_table[_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", +}; + +DEFINE_PRIVATE_STRING_TABLE_LOOKUP(io_accounting_metric_field_base, CGroupIOAccountingMetric); + +static const char* const io_accounting_metric_field_last_table[_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", +}; + +DEFINE_PRIVATE_STRING_TABLE_LOOKUP(io_accounting_metric_field_last, CGroupIOAccountingMetric); + +static const char* const memory_accounting_metric_field_last_table[_CGROUP_MEMORY_ACCOUNTING_METRIC_CACHED_LAST + 1] = { + [CGROUP_MEMORY_PEAK] = "memory-accounting-peak", + [CGROUP_MEMORY_SWAP_PEAK] = "memory-accounting-swap-peak", +}; + +DEFINE_PRIVATE_STRING_TABLE_LOOKUP(memory_accounting_metric_field_last, CGroupMemoryAccountingMetric); + +int unit_serialize_state(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); + + (void) serialize_ratelimit(f, "start-ratelimit", &u->start_ratelimit); + (void) serialize_ratelimit(f, "auto-start-stop-ratelimit", &u->auto_start_stop_ratelimit); + + 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_to_string(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_to_string(im), "%" PRIu64, u->io_accounting_last[im]); + } + + for (CGroupMemoryAccountingMetric metric = 0; metric <= _CGROUP_MEMORY_ACCOUNTING_METRIC_CACHED_LAST; metric++) { + uint64_t v; + + r = unit_get_memory_accounting(u, metric, &v); + if (r >= 0) + (void) serialize_item_format(f, memory_accounting_metric_field_last_to_string(metric), "%" PRIu64, v); + } + + 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_to_string(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_state(Unit *u, FILE *f, FDSet *fds) { + int r; + + assert(u); + assert(f); + assert(fds); + + for (;;) { + _cleanup_free_ char *l = NULL; + ssize_t m; + size_t k; + char *v; + + r = deserialize_read_line(f, &l); + if (r < 0) + return r; + if (r == 0) /* eof or 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 (streq(l, "start-ratelimit")) { + deserialize_ratelimit(&u->start_ratelimit, l, v); + continue; + } else if (streq(l, "auto-start-stop-ratelimit")) { + deserialize_ratelimit(&u->auto_start_stop_ratelimit, l, v); + 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; + + fd = deserialize_fd(fds, v); + if (fd >= 0) + (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; + + fd = deserialize_fd(fds, v); + if (fd >= 0) + (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; + } + + m = memory_accounting_metric_field_last_from_string(l); + if (m >= 0) { + uint64_t c; + + r = safe_atou64(v, &c); + if (r < 0) + log_unit_debug(u, "Failed to parse memory accounting last value %s, ignoring.", v); + else + u->memory_accounting_last[m] = c; + continue; + } + + /* Check if this is an IP accounting metric serialization field */ + m = ip_accounting_metric_field_from_string(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 = io_accounting_metric_field_base_from_string(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 = io_accounting_metric_field_last_from_string(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_shared_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_now(&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_state_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; + + r = read_stripped_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; + + /* End marker */ + if (isempty(line)) + 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\tSurviveFinalKillSignal: %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, yes_no(u->survive_final_kill_signal), + 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); +} |