1 /* SPDX-License-Identifier: LGPL-2.1+ */
5 Copyright 2013 Lennart Poettering
10 #include "cgroup-util.h"
11 //#include "ip-address-access.h"
13 //#include "time-util.h"
15 #if 0 /// UNNEEDED by elogind
16 typedef struct CGroupContext CGroupContext;
17 typedef struct CGroupDeviceAllow CGroupDeviceAllow;
18 typedef struct CGroupIODeviceWeight CGroupIODeviceWeight;
19 typedef struct CGroupIODeviceLimit CGroupIODeviceLimit;
20 typedef struct CGroupBlockIODeviceWeight CGroupBlockIODeviceWeight;
21 typedef struct CGroupBlockIODeviceBandwidth CGroupBlockIODeviceBandwidth;
23 typedef enum CGroupDevicePolicy {
25 /* When devices listed, will allow those, plus built-in ones,
26 if none are listed will allow everything. */
29 /* Everything forbidden, except built-in ones and listed ones. */
32 /* Everythings forbidden, except for the listed devices */
35 _CGROUP_DEVICE_POLICY_MAX,
36 _CGROUP_DEVICE_POLICY_INVALID = -1
39 struct CGroupDeviceAllow {
40 LIST_FIELDS(CGroupDeviceAllow, device_allow);
47 struct CGroupIODeviceWeight {
48 LIST_FIELDS(CGroupIODeviceWeight, device_weights);
53 struct CGroupIODeviceLimit {
54 LIST_FIELDS(CGroupIODeviceLimit, device_limits);
56 uint64_t limits[_CGROUP_IO_LIMIT_TYPE_MAX];
59 struct CGroupBlockIODeviceWeight {
60 LIST_FIELDS(CGroupBlockIODeviceWeight, device_weights);
65 struct CGroupBlockIODeviceBandwidth {
66 LIST_FIELDS(CGroupBlockIODeviceBandwidth, device_bandwidths);
72 struct CGroupContext {
75 bool blockio_accounting;
76 bool memory_accounting;
77 bool tasks_accounting;
80 /* For unified hierarchy */
82 uint64_t startup_cpu_weight;
83 usec_t cpu_quota_per_sec_usec;
86 uint64_t startup_io_weight;
87 LIST_HEAD(CGroupIODeviceWeight, io_device_weights);
88 LIST_HEAD(CGroupIODeviceLimit, io_device_limits);
93 uint64_t memory_swap_max;
95 LIST_HEAD(IPAddressAccessItem, ip_address_allow);
96 LIST_HEAD(IPAddressAccessItem, ip_address_deny);
98 /* For legacy hierarchies */
100 uint64_t startup_cpu_shares;
102 uint64_t blockio_weight;
103 uint64_t startup_blockio_weight;
104 LIST_HEAD(CGroupBlockIODeviceWeight, blockio_device_weights);
105 LIST_HEAD(CGroupBlockIODeviceBandwidth, blockio_device_bandwidths);
107 uint64_t memory_limit;
109 CGroupDevicePolicy device_policy;
110 LIST_HEAD(CGroupDeviceAllow, device_allow);
116 CGroupMask delegate_controllers;
119 /* Used when querying IP accounting data */
120 typedef enum CGroupIPAccountingMetric {
121 CGROUP_IP_INGRESS_BYTES,
122 CGROUP_IP_INGRESS_PACKETS,
123 CGROUP_IP_EGRESS_BYTES,
124 CGROUP_IP_EGRESS_PACKETS,
125 _CGROUP_IP_ACCOUNTING_METRIC_MAX,
126 _CGROUP_IP_ACCOUNTING_METRIC_INVALID = -1,
127 } CGroupIPAccountingMetric;
129 typedef struct Unit Unit;
130 typedef struct Manager Manager;
132 void cgroup_context_init(CGroupContext *c);
133 void cgroup_context_done(CGroupContext *c);
134 void cgroup_context_dump(CGroupContext *c, FILE* f, const char *prefix);
136 CGroupMask cgroup_context_get_mask(CGroupContext *c);
138 void cgroup_context_free_device_allow(CGroupContext *c, CGroupDeviceAllow *a);
139 void cgroup_context_free_io_device_weight(CGroupContext *c, CGroupIODeviceWeight *w);
140 void cgroup_context_free_io_device_limit(CGroupContext *c, CGroupIODeviceLimit *l);
141 void cgroup_context_free_blockio_device_weight(CGroupContext *c, CGroupBlockIODeviceWeight *w);
142 void cgroup_context_free_blockio_device_bandwidth(CGroupContext *c, CGroupBlockIODeviceBandwidth *b);
144 CGroupMask unit_get_own_mask(Unit *u);
145 CGroupMask unit_get_delegate_mask(Unit *u);
146 CGroupMask unit_get_members_mask(Unit *u);
147 CGroupMask unit_get_siblings_mask(Unit *u);
148 CGroupMask unit_get_subtree_mask(Unit *u);
150 CGroupMask unit_get_target_mask(Unit *u);
151 CGroupMask unit_get_enable_mask(Unit *u);
153 bool unit_get_needs_bpf(Unit *u);
155 void unit_update_cgroup_members_masks(Unit *u);
157 const char *unit_get_realized_cgroup_path(Unit *u, CGroupMask mask);
158 char *unit_default_cgroup_path(Unit *u);
159 int unit_set_cgroup_path(Unit *u, const char *path);
160 int unit_pick_cgroup_path(Unit *u);
162 int unit_realize_cgroup(Unit *u);
163 void unit_release_cgroup(Unit *u);
164 void unit_prune_cgroup(Unit *u);
165 int unit_watch_cgroup(Unit *u);
167 void unit_add_to_cgroup_empty_queue(Unit *u);
169 int unit_attach_pids_to_cgroup(Unit *u, Set *pids, const char *suffix_path);
174 int manager_setup_cgroup(Manager *m);
175 void manager_shutdown_cgroup(Manager *m, bool delete);
177 #if 0 /// UNNEEDED by elogind
178 unsigned manager_dispatch_cgroup_realize_queue(Manager *m);
180 Unit *manager_get_unit_by_cgroup(Manager *m, const char *cgroup);
181 Unit *manager_get_unit_by_pid_cgroup(Manager *m, pid_t pid);
182 Unit* manager_get_unit_by_pid(Manager *m, pid_t pid);
184 int unit_search_main_pid(Unit *u, pid_t *ret);
185 int unit_watch_all_pids(Unit *u);
187 int unit_synthesize_cgroup_empty_event(Unit *u);
189 int unit_get_memory_current(Unit *u, uint64_t *ret);
190 int unit_get_tasks_current(Unit *u, uint64_t *ret);
191 int unit_get_cpu_usage(Unit *u, nsec_t *ret);
192 int unit_get_ip_accounting(Unit *u, CGroupIPAccountingMetric metric, uint64_t *ret);
194 int unit_reset_cpu_accounting(Unit *u);
195 int unit_reset_ip_accounting(Unit *u);
197 #define UNIT_CGROUP_BOOL(u, name) \
199 CGroupContext *cc = unit_get_cgroup_context(u); \
200 cc ? cc->name : false; \
204 bool manager_owns_root_cgroup(Manager *m);
206 #if 0 /// UNNEEDED by elogind
207 bool unit_has_root_cgroup(Unit *u);
210 int manager_notify_cgroup_empty(Manager *m, const char *group);
212 #if 0 /// UNNEEDED by elogind
213 void unit_invalidate_cgroup(Unit *u, CGroupMask m);
214 void unit_invalidate_cgroup_bpf(Unit *u);
216 void manager_invalidate_startup_units(Manager *m);
218 const char* cgroup_device_policy_to_string(CGroupDevicePolicy i) _const_;
219 CGroupDevicePolicy cgroup_device_policy_from_string(const char *s) _pure_;
221 bool unit_cgroup_delegate(Unit *u);