mirror of
https://github.com/morgan9e/systemd
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94634b4b03
When running unprivileged containers, we run into a scenario where an unpriv owned cgroup has a subcgroup delegated to another user (i.e. the container's own UIDs). When the owner of that cgroup dies without cleaning it up then the unpriv service manager might encounter a cgroup it cannot delete anymore. Let's address that: let's expose a method call on the service manager (primarly in PID1) that can be used to delete a subcgroup of a unit one owns. This would then allow the unpriv service manager to ask the priv service manager to get rid of such a cgroup. This commit only adds the method call, the next commit then adds the code that makes use of this.
57 lines
2.7 KiB
C
57 lines
2.7 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#include "sd-bus.h"
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#include "unit.h"
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extern const sd_bus_vtable bus_unit_vtable[];
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extern const sd_bus_vtable bus_unit_cgroup_vtable[];
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void bus_unit_send_change_signal(Unit *u);
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void bus_unit_send_pending_change_signal(Unit *u, bool including_new);
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int bus_unit_send_pending_freezer_message(Unit *u, bool cancelled);
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void bus_unit_send_removed_signal(Unit *u);
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int bus_unit_method_start_generic(sd_bus_message *message, Unit *u, JobType job_type, bool reload_if_possible, sd_bus_error *error);
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int bus_unit_method_enqueue_job(sd_bus_message *message, void *userdata, sd_bus_error *error);
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int bus_unit_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error);
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int bus_unit_method_reset_failed(sd_bus_message *message, void *userdata, sd_bus_error *error);
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int bus_unit_set_properties(Unit *u, sd_bus_message *message, UnitWriteFlags flags, bool commit, sd_bus_error *error);
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int bus_unit_method_set_properties(sd_bus_message *message, void *userdata, sd_bus_error *error);
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int bus_unit_method_get_processes(sd_bus_message *message, void *userdata, sd_bus_error *error);
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int bus_unit_method_attach_processes(sd_bus_message *message, void *userdata, sd_bus_error *error);
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int bus_unit_method_remove_subgroup(sd_bus_message *message, void *userdata, sd_bus_error *error);
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int bus_unit_method_ref(sd_bus_message *message, void *userdata, sd_bus_error *error);
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int bus_unit_method_unref(sd_bus_message *message, void *userdata, sd_bus_error *error);
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int bus_unit_method_clean(sd_bus_message *message, void *userdata, sd_bus_error *error);
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int bus_unit_method_freeze(sd_bus_message *message, void *userdata, sd_bus_error *error);
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int bus_unit_method_thaw(sd_bus_message *message, void *userdata, sd_bus_error *error);
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typedef enum BusUnitQueueFlags {
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BUS_UNIT_QUEUE_RELOAD_IF_POSSIBLE = 1 << 0,
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BUS_UNIT_QUEUE_VERBOSE_REPLY = 1 << 1,
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} BusUnitQueueFlags;
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int bus_unit_queue_job_one(
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sd_bus_message *message,
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Unit *u,
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JobType type,
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JobMode mode,
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BusUnitQueueFlags flags,
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sd_bus_message *reply,
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sd_bus_error *error);
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int bus_unit_queue_job(
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sd_bus_message *message,
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Unit *u,
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JobType type,
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JobMode mode,
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BusUnitQueueFlags flags,
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sd_bus_error *error);
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int bus_unit_validate_load_state(Unit *u, sd_bus_error *error);
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int bus_unit_track_add_name(Unit *u, const char *name);
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int bus_unit_track_add_sender(Unit *u, sd_bus_message *m);
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int bus_unit_track_remove_sender(Unit *u, sd_bus_message *m);
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