1 /* SPDX-License-Identifier: LGPL-2.1+ */
6 #include "cgroup-util.h"
7 #include "cpu-set-util.h"
8 #include "ip-address-access.h"
10 #include "time-util.h"
12 typedef struct CGroupContext CGroupContext
;
13 typedef struct CGroupDeviceAllow CGroupDeviceAllow
;
14 typedef struct CGroupIODeviceWeight CGroupIODeviceWeight
;
15 typedef struct CGroupIODeviceLimit CGroupIODeviceLimit
;
16 typedef struct CGroupIODeviceLatency CGroupIODeviceLatency
;
17 typedef struct CGroupBlockIODeviceWeight CGroupBlockIODeviceWeight
;
18 typedef struct CGroupBlockIODeviceBandwidth CGroupBlockIODeviceBandwidth
;
20 typedef enum CGroupDevicePolicy
{
21 /* When devices listed, will allow those, plus built-in ones, if none are listed will allow
23 CGROUP_DEVICE_POLICY_AUTO
,
25 /* Everything forbidden, except built-in ones and listed ones. */
26 CGROUP_DEVICE_POLICY_CLOSED
,
28 /* Everything forbidden, except for the listed devices */
29 CGROUP_DEVICE_POLICY_STRICT
,
31 _CGROUP_DEVICE_POLICY_MAX
,
32 _CGROUP_DEVICE_POLICY_INVALID
= -1
35 struct CGroupDeviceAllow
{
36 LIST_FIELDS(CGroupDeviceAllow
, device_allow
);
43 struct CGroupIODeviceWeight
{
44 LIST_FIELDS(CGroupIODeviceWeight
, device_weights
);
49 struct CGroupIODeviceLimit
{
50 LIST_FIELDS(CGroupIODeviceLimit
, device_limits
);
52 uint64_t limits
[_CGROUP_IO_LIMIT_TYPE_MAX
];
55 struct CGroupIODeviceLatency
{
56 LIST_FIELDS(CGroupIODeviceLatency
, device_latencies
);
61 struct CGroupBlockIODeviceWeight
{
62 LIST_FIELDS(CGroupBlockIODeviceWeight
, device_weights
);
67 struct CGroupBlockIODeviceBandwidth
{
68 LIST_FIELDS(CGroupBlockIODeviceBandwidth
, device_bandwidths
);
74 struct CGroupContext
{
77 bool blockio_accounting
;
78 bool memory_accounting
;
79 bool tasks_accounting
;
82 /* Configures the memory.oom.group attribute (on unified) */
83 bool memory_oom_group
;
86 CGroupMask delegate_controllers
;
87 CGroupMask disable_controllers
;
89 /* For unified hierarchy */
91 uint64_t startup_cpu_weight
;
92 usec_t cpu_quota_per_sec_usec
;
93 usec_t cpu_quota_period_usec
;
99 uint64_t startup_io_weight
;
100 LIST_HEAD(CGroupIODeviceWeight
, io_device_weights
);
101 LIST_HEAD(CGroupIODeviceLimit
, io_device_limits
);
102 LIST_HEAD(CGroupIODeviceLatency
, io_device_latencies
);
104 uint64_t default_memory_min
;
105 uint64_t default_memory_low
;
108 uint64_t memory_high
;
110 uint64_t memory_swap_max
;
112 bool default_memory_min_set
;
113 bool default_memory_low_set
;
117 LIST_HEAD(IPAddressAccessItem
, ip_address_allow
);
118 LIST_HEAD(IPAddressAccessItem
, ip_address_deny
);
120 char **ip_filters_ingress
;
121 char **ip_filters_egress
;
123 /* For legacy hierarchies */
125 uint64_t startup_cpu_shares
;
127 uint64_t blockio_weight
;
128 uint64_t startup_blockio_weight
;
129 LIST_HEAD(CGroupBlockIODeviceWeight
, blockio_device_weights
);
130 LIST_HEAD(CGroupBlockIODeviceBandwidth
, blockio_device_bandwidths
);
132 uint64_t memory_limit
;
134 CGroupDevicePolicy device_policy
;
135 LIST_HEAD(CGroupDeviceAllow
, device_allow
);
141 /* Used when querying IP accounting data */
142 typedef enum CGroupIPAccountingMetric
{
143 CGROUP_IP_INGRESS_BYTES
,
144 CGROUP_IP_INGRESS_PACKETS
,
145 CGROUP_IP_EGRESS_BYTES
,
146 CGROUP_IP_EGRESS_PACKETS
,
147 _CGROUP_IP_ACCOUNTING_METRIC_MAX
,
148 _CGROUP_IP_ACCOUNTING_METRIC_INVALID
= -1,
149 } CGroupIPAccountingMetric
;
151 /* Used when querying IO accounting data */
152 typedef enum CGroupIOAccountingMetric
{
153 CGROUP_IO_READ_BYTES
,
154 CGROUP_IO_WRITE_BYTES
,
155 CGROUP_IO_READ_OPERATIONS
,
156 CGROUP_IO_WRITE_OPERATIONS
,
157 _CGROUP_IO_ACCOUNTING_METRIC_MAX
,
158 _CGROUP_IO_ACCOUNTING_METRIC_INVALID
= -1,
159 } CGroupIOAccountingMetric
;
161 typedef struct Unit Unit
;
162 typedef struct Manager Manager
;
164 usec_t
cgroup_cpu_adjust_period(usec_t period
, usec_t quota
, usec_t resolution
, usec_t max_period
);
166 void cgroup_context_init(CGroupContext
*c
);
167 void cgroup_context_done(CGroupContext
*c
);
168 void cgroup_context_dump(Unit
*u
, FILE* f
, const char *prefix
);
170 void cgroup_context_free_device_allow(CGroupContext
*c
, CGroupDeviceAllow
*a
);
171 void cgroup_context_free_io_device_weight(CGroupContext
*c
, CGroupIODeviceWeight
*w
);
172 void cgroup_context_free_io_device_limit(CGroupContext
*c
, CGroupIODeviceLimit
*l
);
173 void cgroup_context_free_io_device_latency(CGroupContext
*c
, CGroupIODeviceLatency
*l
);
174 void cgroup_context_free_blockio_device_weight(CGroupContext
*c
, CGroupBlockIODeviceWeight
*w
);
175 void cgroup_context_free_blockio_device_bandwidth(CGroupContext
*c
, CGroupBlockIODeviceBandwidth
*b
);
177 int cgroup_add_device_allow(CGroupContext
*c
, const char *dev
, const char *mode
);
179 CGroupMask
unit_get_own_mask(Unit
*u
);
180 CGroupMask
unit_get_delegate_mask(Unit
*u
);
181 CGroupMask
unit_get_members_mask(Unit
*u
);
182 CGroupMask
unit_get_siblings_mask(Unit
*u
);
183 CGroupMask
unit_get_subtree_mask(Unit
*u
);
184 CGroupMask
unit_get_disable_mask(Unit
*u
);
185 CGroupMask
unit_get_ancestor_disable_mask(Unit
*u
);
187 CGroupMask
unit_get_target_mask(Unit
*u
);
188 CGroupMask
unit_get_enable_mask(Unit
*u
);
190 void unit_invalidate_cgroup_members_masks(Unit
*u
);
192 void unit_add_to_cgroup_realize_queue(Unit
*u
);
194 const char *unit_get_realized_cgroup_path(Unit
*u
, CGroupMask mask
);
195 char *unit_default_cgroup_path(const Unit
*u
);
196 int unit_set_cgroup_path(Unit
*u
, const char *path
);
197 int unit_pick_cgroup_path(Unit
*u
);
199 int unit_realize_cgroup(Unit
*u
);
200 void unit_release_cgroup(Unit
*u
);
201 void unit_prune_cgroup(Unit
*u
);
202 int unit_watch_cgroup(Unit
*u
);
203 int unit_watch_cgroup_memory(Unit
*u
);
205 void unit_add_to_cgroup_empty_queue(Unit
*u
);
206 int unit_check_oom(Unit
*u
);
208 int unit_attach_pids_to_cgroup(Unit
*u
, Set
*pids
, const char *suffix_path
);
210 int manager_setup_cgroup(Manager
*m
);
211 void manager_shutdown_cgroup(Manager
*m
, bool delete);
213 unsigned manager_dispatch_cgroup_realize_queue(Manager
*m
);
215 Unit
*manager_get_unit_by_cgroup(Manager
*m
, const char *cgroup
);
216 Unit
*manager_get_unit_by_pid_cgroup(Manager
*m
, pid_t pid
);
217 Unit
* manager_get_unit_by_pid(Manager
*m
, pid_t pid
);
219 uint64_t unit_get_ancestor_memory_min(Unit
*u
);
220 uint64_t unit_get_ancestor_memory_low(Unit
*u
);
222 int unit_search_main_pid(Unit
*u
, pid_t
*ret
);
223 int unit_watch_all_pids(Unit
*u
);
225 int unit_synthesize_cgroup_empty_event(Unit
*u
);
227 int unit_get_memory_current(Unit
*u
, uint64_t *ret
);
228 int unit_get_tasks_current(Unit
*u
, uint64_t *ret
);
229 int unit_get_cpu_usage(Unit
*u
, nsec_t
*ret
);
230 int unit_get_io_accounting(Unit
*u
, CGroupIOAccountingMetric metric
, bool allow_cache
, uint64_t *ret
);
231 int unit_get_ip_accounting(Unit
*u
, CGroupIPAccountingMetric metric
, uint64_t *ret
);
233 int unit_reset_cpu_accounting(Unit
*u
);
234 int unit_reset_ip_accounting(Unit
*u
);
235 int unit_reset_io_accounting(Unit
*u
);
236 int unit_reset_accounting(Unit
*u
);
238 #define UNIT_CGROUP_BOOL(u, name) \
240 CGroupContext *cc = unit_get_cgroup_context(u); \
241 cc ? cc->name : false; \
244 bool manager_owns_host_root_cgroup(Manager
*m
);
245 bool unit_has_host_root_cgroup(Unit
*u
);
247 int manager_notify_cgroup_empty(Manager
*m
, const char *group
);
249 void unit_invalidate_cgroup(Unit
*u
, CGroupMask m
);
250 void unit_invalidate_cgroup_bpf(Unit
*u
);
252 void manager_invalidate_startup_units(Manager
*m
);
254 const char* cgroup_device_policy_to_string(CGroupDevicePolicy i
) _const_
;
255 CGroupDevicePolicy
cgroup_device_policy_from_string(const char *s
) _pure_
;
257 bool unit_cgroup_delegate(Unit
*u
);
259 int compare_job_priority(const void *a
, const void *b
);
261 int unit_get_cpuset(Unit
*u
, CPUSet
*cpus
, const char *name
);