1 /* SPDX-License-Identifier: LGPL-2.1+ */
5 This file is part of systemd.
7 Copyright 2013 Lennart Poettering
9 systemd is free software; you can redistribute it and/or modify it
10 under the terms of the GNU Lesser General Public License as published by
11 the Free Software Foundation; either version 2.1 of the License, or
12 (at your option) any later version.
14 systemd is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
19 You should have received a copy of the GNU Lesser General Public License
20 along with systemd; If not, see <http://www.gnu.org/licenses/>.
25 #include "cgroup-util.h"
26 //#include "ip-address-access.h"
28 //#include "time-util.h"
30 #if 0 /// UNNEEDED by elogind
31 typedef struct CGroupContext CGroupContext;
32 typedef struct CGroupDeviceAllow CGroupDeviceAllow;
33 typedef struct CGroupIODeviceWeight CGroupIODeviceWeight;
34 typedef struct CGroupIODeviceLimit CGroupIODeviceLimit;
35 typedef struct CGroupBlockIODeviceWeight CGroupBlockIODeviceWeight;
36 typedef struct CGroupBlockIODeviceBandwidth CGroupBlockIODeviceBandwidth;
38 typedef enum CGroupDevicePolicy {
40 /* When devices listed, will allow those, plus built-in ones,
41 if none are listed will allow everything. */
44 /* Everything forbidden, except built-in ones and listed ones. */
47 /* Everythings forbidden, except for the listed devices */
50 _CGROUP_DEVICE_POLICY_MAX,
51 _CGROUP_DEVICE_POLICY_INVALID = -1
54 struct CGroupDeviceAllow {
55 LIST_FIELDS(CGroupDeviceAllow, device_allow);
62 struct CGroupIODeviceWeight {
63 LIST_FIELDS(CGroupIODeviceWeight, device_weights);
68 struct CGroupIODeviceLimit {
69 LIST_FIELDS(CGroupIODeviceLimit, device_limits);
71 uint64_t limits[_CGROUP_IO_LIMIT_TYPE_MAX];
74 struct CGroupBlockIODeviceWeight {
75 LIST_FIELDS(CGroupBlockIODeviceWeight, device_weights);
80 struct CGroupBlockIODeviceBandwidth {
81 LIST_FIELDS(CGroupBlockIODeviceBandwidth, device_bandwidths);
87 struct CGroupContext {
90 bool blockio_accounting;
91 bool memory_accounting;
92 bool tasks_accounting;
95 /* For unified hierarchy */
97 uint64_t startup_cpu_weight;
98 usec_t cpu_quota_per_sec_usec;
101 uint64_t startup_io_weight;
102 LIST_HEAD(CGroupIODeviceWeight, io_device_weights);
103 LIST_HEAD(CGroupIODeviceLimit, io_device_limits);
106 uint64_t memory_high;
108 uint64_t memory_swap_max;
110 LIST_HEAD(IPAddressAccessItem, ip_address_allow);
111 LIST_HEAD(IPAddressAccessItem, ip_address_deny);
113 /* For legacy hierarchies */
115 uint64_t startup_cpu_shares;
117 uint64_t blockio_weight;
118 uint64_t startup_blockio_weight;
119 LIST_HEAD(CGroupBlockIODeviceWeight, blockio_device_weights);
120 LIST_HEAD(CGroupBlockIODeviceBandwidth, blockio_device_bandwidths);
122 uint64_t memory_limit;
124 CGroupDevicePolicy device_policy;
125 LIST_HEAD(CGroupDeviceAllow, device_allow);
131 CGroupMask delegate_controllers;
134 /* Used when querying IP accounting data */
135 typedef enum CGroupIPAccountingMetric {
136 CGROUP_IP_INGRESS_BYTES,
137 CGROUP_IP_INGRESS_PACKETS,
138 CGROUP_IP_EGRESS_BYTES,
139 CGROUP_IP_EGRESS_PACKETS,
140 _CGROUP_IP_ACCOUNTING_METRIC_MAX,
141 _CGROUP_IP_ACCOUNTING_METRIC_INVALID = -1,
142 } CGroupIPAccountingMetric;
146 void cgroup_context_init(CGroupContext *c);
147 void cgroup_context_done(CGroupContext *c);
148 void cgroup_context_dump(CGroupContext *c, FILE* f, const char *prefix);
150 CGroupMask cgroup_context_get_mask(CGroupContext *c);
152 void cgroup_context_free_device_allow(CGroupContext *c, CGroupDeviceAllow *a);
153 void cgroup_context_free_io_device_weight(CGroupContext *c, CGroupIODeviceWeight *w);
154 void cgroup_context_free_io_device_limit(CGroupContext *c, CGroupIODeviceLimit *l);
155 void cgroup_context_free_blockio_device_weight(CGroupContext *c, CGroupBlockIODeviceWeight *w);
156 void cgroup_context_free_blockio_device_bandwidth(CGroupContext *c, CGroupBlockIODeviceBandwidth *b);
158 CGroupMask unit_get_own_mask(Unit *u);
159 CGroupMask unit_get_delegate_mask(Unit *u);
160 CGroupMask unit_get_members_mask(Unit *u);
161 CGroupMask unit_get_siblings_mask(Unit *u);
162 CGroupMask unit_get_subtree_mask(Unit *u);
164 CGroupMask unit_get_target_mask(Unit *u);
165 CGroupMask unit_get_enable_mask(Unit *u);
167 bool unit_get_needs_bpf(Unit *u);
169 void unit_update_cgroup_members_masks(Unit *u);
171 char *unit_default_cgroup_path(Unit *u);
172 int unit_set_cgroup_path(Unit *u, const char *path);
173 int unit_pick_cgroup_path(Unit *u);
175 int unit_realize_cgroup(Unit *u);
176 void unit_release_cgroup(Unit *u);
177 void unit_prune_cgroup(Unit *u);
178 int unit_watch_cgroup(Unit *u);
180 void unit_add_to_cgroup_empty_queue(Unit *u);
182 int unit_attach_pids_to_cgroup(Unit *u);
187 int manager_setup_cgroup(Manager *m);
188 void manager_shutdown_cgroup(Manager *m, bool delete);
190 #if 0 /// UNNEEDED by elogind
191 unsigned manager_dispatch_cgroup_realize_queue(Manager *m);
193 Unit *manager_get_unit_by_cgroup(Manager *m, const char *cgroup);
194 Unit *manager_get_unit_by_pid_cgroup(Manager *m, pid_t pid);
195 Unit* manager_get_unit_by_pid(Manager *m, pid_t pid);
197 int unit_search_main_pid(Unit *u, pid_t *ret);
198 int unit_watch_all_pids(Unit *u);
200 int unit_get_memory_current(Unit *u, uint64_t *ret);
201 int unit_get_tasks_current(Unit *u, uint64_t *ret);
202 int unit_get_cpu_usage(Unit *u, nsec_t *ret);
203 int unit_get_ip_accounting(Unit *u, CGroupIPAccountingMetric metric, uint64_t *ret);
205 int unit_reset_cpu_accounting(Unit *u);
206 int unit_reset_ip_accounting(Unit *u);
208 #define UNIT_CGROUP_BOOL(u, name) \
210 CGroupContext *cc = unit_get_cgroup_context(u); \
211 cc ? cc->name : false; \
215 bool unit_has_root_cgroup(Unit *u);
217 int manager_notify_cgroup_empty(Manager *m, const char *group);
219 #if 0 /// UNNEEDED by elogind
220 void unit_invalidate_cgroup(Unit *u, CGroupMask m);
221 void unit_invalidate_cgroup_bpf(Unit *u);
223 void manager_invalidate_startup_units(Manager *m);
225 const char* cgroup_device_policy_to_string(CGroupDevicePolicy i) _const_;
226 CGroupDevicePolicy cgroup_device_policy_from_string(const char *s) _pure_;