Zbigniew Jędrzejewski-Szmek
11a1589223
Files which are installed as-is (any .service and other unit files, .conf files, .policy files, etc), are left as is. My assumption is that SPDX identifiers are not yet that well known, so it's better to retain the extended header to avoid any doubt. I also kept any copyright lines. We can probably remove them, but it'd nice to obtain explicit acks from all involved authors before doing that.
395 lines
14 KiB
C
395 lines
14 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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***/
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#include "alloc-util.h"
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#include "bus-util.h"
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#include "dbus-timer.h"
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#include "dbus-util.h"
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#include "strv.h"
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#include "timer.h"
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#include "unit.h"
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static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_result, timer_result, TimerResult);
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static int property_get_monotonic_timers(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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Timer *t = userdata;
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TimerValue *v;
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int r;
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assert(bus);
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assert(reply);
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assert(t);
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r = sd_bus_message_open_container(reply, 'a', "(stt)");
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if (r < 0)
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return r;
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LIST_FOREACH(value, v, t->values) {
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_cleanup_free_ char *buf = NULL;
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const char *s;
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size_t l;
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if (v->base == TIMER_CALENDAR)
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continue;
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s = timer_base_to_string(v->base);
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assert(endswith(s, "Sec"));
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/* s/Sec/USec/ */
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l = strlen(s);
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buf = new(char, l+2);
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if (!buf)
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return -ENOMEM;
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memcpy(buf, s, l-3);
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memcpy(buf+l-3, "USec", 5);
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r = sd_bus_message_append(reply, "(stt)", buf, v->value, v->next_elapse);
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if (r < 0)
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return r;
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}
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return sd_bus_message_close_container(reply);
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}
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static int property_get_calendar_timers(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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Timer *t = userdata;
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TimerValue *v;
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int r;
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assert(bus);
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assert(reply);
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assert(t);
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r = sd_bus_message_open_container(reply, 'a', "(sst)");
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if (r < 0)
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return r;
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LIST_FOREACH(value, v, t->values) {
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_cleanup_free_ char *buf = NULL;
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if (v->base != TIMER_CALENDAR)
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continue;
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r = calendar_spec_to_string(v->calendar_spec, &buf);
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if (r < 0)
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return r;
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r = sd_bus_message_append(reply, "(sst)", timer_base_to_string(v->base), buf, v->next_elapse);
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if (r < 0)
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return r;
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}
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return sd_bus_message_close_container(reply);
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}
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static int property_get_unit(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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Unit *u = userdata, *trigger;
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assert(bus);
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assert(reply);
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assert(u);
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trigger = UNIT_TRIGGER(u);
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return sd_bus_message_append(reply, "s", trigger ? trigger->id : "");
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}
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static int property_get_next_elapse_monotonic(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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Timer *t = userdata;
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assert(bus);
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assert(reply);
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assert(t);
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return sd_bus_message_append(reply, "t",
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(uint64_t) usec_shift_clock(t->next_elapse_monotonic_or_boottime,
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TIMER_MONOTONIC_CLOCK(t), CLOCK_MONOTONIC));
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}
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const sd_bus_vtable bus_timer_vtable[] = {
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SD_BUS_VTABLE_START(0),
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SD_BUS_PROPERTY("Unit", "s", property_get_unit, 0, SD_BUS_VTABLE_PROPERTY_CONST),
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SD_BUS_PROPERTY("TimersMonotonic", "a(stt)", property_get_monotonic_timers, 0, SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
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SD_BUS_PROPERTY("TimersCalendar", "a(sst)", property_get_calendar_timers, 0, SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
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SD_BUS_PROPERTY("NextElapseUSecRealtime", "t", bus_property_get_usec, offsetof(Timer, next_elapse_realtime), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
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SD_BUS_PROPERTY("NextElapseUSecMonotonic", "t", property_get_next_elapse_monotonic, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
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BUS_PROPERTY_DUAL_TIMESTAMP("LastTriggerUSec", offsetof(Timer, last_trigger), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
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SD_BUS_PROPERTY("Result", "s", property_get_result, offsetof(Timer, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
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SD_BUS_PROPERTY("AccuracyUSec", "t", bus_property_get_usec, offsetof(Timer, accuracy_usec), SD_BUS_VTABLE_PROPERTY_CONST),
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SD_BUS_PROPERTY("RandomizedDelayUSec", "t", bus_property_get_usec, offsetof(Timer, random_usec), SD_BUS_VTABLE_PROPERTY_CONST),
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SD_BUS_PROPERTY("Persistent", "b", bus_property_get_bool, offsetof(Timer, persistent), SD_BUS_VTABLE_PROPERTY_CONST),
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SD_BUS_PROPERTY("WakeSystem", "b", bus_property_get_bool, offsetof(Timer, wake_system), SD_BUS_VTABLE_PROPERTY_CONST),
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SD_BUS_PROPERTY("RemainAfterElapse", "b", bus_property_get_bool, offsetof(Timer, remain_after_elapse), SD_BUS_VTABLE_PROPERTY_CONST),
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SD_BUS_VTABLE_END
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};
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static int bus_timer_set_transient_property(
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Timer *t,
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const char *name,
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sd_bus_message *message,
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UnitWriteFlags flags,
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sd_bus_error *error) {
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Unit *u = UNIT(t);
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int r;
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assert(t);
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assert(name);
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assert(message);
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flags |= UNIT_PRIVATE;
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if (streq(name, "AccuracyUSec"))
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return bus_set_transient_usec(u, name, &t->accuracy_usec, message, flags, error);
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if (streq(name, "AccuracySec")) {
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log_notice("Client is using obsolete AccuracySec= transient property, please use AccuracyUSec= instead.");
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return bus_set_transient_usec(u, "AccuracyUSec", &t->accuracy_usec, message, flags, error);
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}
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if (streq(name, "RandomizedDelayUSec"))
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return bus_set_transient_usec(u, name, &t->random_usec, message, flags, error);
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if (streq(name, "WakeSystem"))
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return bus_set_transient_bool(u, name, &t->wake_system, message, flags, error);
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if (streq(name, "Persistent"))
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return bus_set_transient_bool(u, name, &t->persistent, message, flags, error);
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if (streq(name, "RemainAfterElapse"))
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return bus_set_transient_bool(u, name, &t->remain_after_elapse, message, flags, error);
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if (streq(name, "TimersMonotonic")) {
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const char *base_name;
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usec_t usec = 0;
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bool empty = true;
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r = sd_bus_message_enter_container(message, 'a', "(st)");
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if (r < 0)
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return r;
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while ((r = sd_bus_message_read(message, "(st)", &base_name, &usec)) > 0) {
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TimerBase b;
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b = timer_base_from_string(base_name);
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if (b < 0 || b == TIMER_CALENDAR)
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return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid timer base: %s", base_name);
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if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
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char ts[FORMAT_TIMESPAN_MAX];
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TimerValue *v;
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unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s", base_name,
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format_timespan(ts, sizeof(ts), usec, USEC_PER_MSEC));
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v = new0(TimerValue, 1);
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if (!v)
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return -ENOMEM;
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v->base = b;
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v->value = usec;
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LIST_PREPEND(value, t->values, v);
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}
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empty = false;
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}
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if (r < 0)
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return r;
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r = sd_bus_message_exit_container(message);
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if (r < 0)
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return r;
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if (!UNIT_WRITE_FLAGS_NOOP(flags) && empty) {
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timer_free_values(t);
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unit_write_setting(u, flags, name, "OnActiveSec=");
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}
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return 1;
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} else if (streq(name, "TimersCalendar")) {
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const char *base_name, *str;
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bool empty = true;
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r = sd_bus_message_enter_container(message, 'a', "(ss)");
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if (r < 0)
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return r;
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while ((r = sd_bus_message_read(message, "(ss)", &base_name, &str)) > 0) {
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_cleanup_(calendar_spec_freep) CalendarSpec *c = NULL;
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TimerBase b;
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b = timer_base_from_string(base_name);
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if (b != TIMER_CALENDAR)
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return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid timer base: %s", base_name);
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r = calendar_spec_from_string(str, &c);
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if (r == -EINVAL)
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return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid calendar spec: %s", str);
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if (r < 0)
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return r;
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if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
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TimerValue *v;
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unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s", base_name, str);
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v = new0(TimerValue, 1);
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if (!v)
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return -ENOMEM;
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v->base = b;
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v->calendar_spec = TAKE_PTR(c);
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LIST_PREPEND(value, t->values, v);
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}
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empty = false;
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}
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if (r < 0)
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return r;
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r = sd_bus_message_exit_container(message);
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if (r < 0)
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return r;
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if (!UNIT_WRITE_FLAGS_NOOP(flags) && empty) {
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timer_free_values(t);
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unit_write_setting(u, flags, name, "OnCalendar=");
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}
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return 1;
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} else if (STR_IN_SET(name,
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"OnActiveSec",
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"OnBootSec",
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"OnStartupSec",
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"OnUnitActiveSec",
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"OnUnitInactiveSec")) {
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TimerValue *v;
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TimerBase b = _TIMER_BASE_INVALID;
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usec_t usec = 0;
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log_notice("Client is using obsolete %s= transient property, please use TimersMonotonic= instead.", name);
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b = timer_base_from_string(name);
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if (b < 0)
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return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown timer base");
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r = sd_bus_message_read(message, "t", &usec);
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if (r < 0)
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return r;
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if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
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char time[FORMAT_TIMESPAN_MAX];
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unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s", name,
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format_timespan(time, sizeof(time), usec, USEC_PER_MSEC));
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v = new0(TimerValue, 1);
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if (!v)
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return -ENOMEM;
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v->base = b;
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v->value = usec;
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LIST_PREPEND(value, t->values, v);
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}
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return 1;
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} else if (streq(name, "OnCalendar")) {
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TimerValue *v;
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_cleanup_(calendar_spec_freep) CalendarSpec *c = NULL;
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const char *str;
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log_notice("Client is using obsolete %s= transient property, please use TimersCalendar= instead.", name);
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r = sd_bus_message_read(message, "s", &str);
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if (r < 0)
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return r;
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if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
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r = calendar_spec_from_string(str, &c);
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if (r == -EINVAL)
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return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid calendar spec");
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if (r < 0)
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return r;
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unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s", name, str);
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v = new0(TimerValue, 1);
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if (!v)
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return -ENOMEM;
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v->base = TIMER_CALENDAR;
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v->calendar_spec = TAKE_PTR(c);
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LIST_PREPEND(value, t->values, v);
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}
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return 1;
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}
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return 0;
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}
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int bus_timer_set_property(
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Unit *u,
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const char *name,
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sd_bus_message *message,
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UnitWriteFlags mode,
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sd_bus_error *error) {
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Timer *t = TIMER(u);
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assert(t);
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assert(name);
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assert(message);
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if (u->transient && u->load_state == UNIT_STUB)
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return bus_timer_set_transient_property(t, name, message, mode, error);
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return 0;
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}
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