1 /* SPDX-License-Identifier: LGPL-2.1+ */
6 #include "cgroup-util.h"
7 //#include "ip-address-access.h"
9 //#include "time-util.h"
11 #if 0 /// UNNEEDED by elogind
12 typedef struct CGroupContext CGroupContext;
13 typedef struct CGroupDeviceAllow CGroupDeviceAllow;
14 typedef struct CGroupIODeviceWeight CGroupIODeviceWeight;
15 typedef struct CGroupIODeviceLimit CGroupIODeviceLimit;
16 typedef struct CGroupBlockIODeviceWeight CGroupBlockIODeviceWeight;
17 typedef struct CGroupBlockIODeviceBandwidth CGroupBlockIODeviceBandwidth;
19 typedef enum CGroupDevicePolicy {
21 /* When devices listed, will allow those, plus built-in ones,
22 if none are listed will allow everything. */
25 /* Everything forbidden, except built-in ones and listed ones. */
28 /* Everythings forbidden, except for the listed devices */
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 CGroupBlockIODeviceWeight {
56 LIST_FIELDS(CGroupBlockIODeviceWeight, device_weights);
61 struct CGroupBlockIODeviceBandwidth {
62 LIST_FIELDS(CGroupBlockIODeviceBandwidth, device_bandwidths);
68 struct CGroupContext {
71 bool blockio_accounting;
72 bool memory_accounting;
73 bool tasks_accounting;
76 /* For unified hierarchy */
78 uint64_t startup_cpu_weight;
79 usec_t cpu_quota_per_sec_usec;
82 uint64_t startup_io_weight;
83 LIST_HEAD(CGroupIODeviceWeight, io_device_weights);
84 LIST_HEAD(CGroupIODeviceLimit, io_device_limits);
89 uint64_t memory_swap_max;
91 LIST_HEAD(IPAddressAccessItem, ip_address_allow);
92 LIST_HEAD(IPAddressAccessItem, ip_address_deny);
94 /* For legacy hierarchies */
96 uint64_t startup_cpu_shares;
98 uint64_t blockio_weight;
99 uint64_t startup_blockio_weight;
100 LIST_HEAD(CGroupBlockIODeviceWeight, blockio_device_weights);
101 LIST_HEAD(CGroupBlockIODeviceBandwidth, blockio_device_bandwidths);
103 uint64_t memory_limit;
105 CGroupDevicePolicy device_policy;
106 LIST_HEAD(CGroupDeviceAllow, device_allow);
112 CGroupMask delegate_controllers;
115 /* Used when querying IP accounting data */
116 typedef enum CGroupIPAccountingMetric {
117 CGROUP_IP_INGRESS_BYTES,
118 CGROUP_IP_INGRESS_PACKETS,
119 CGROUP_IP_EGRESS_BYTES,
120 CGROUP_IP_EGRESS_PACKETS,
121 _CGROUP_IP_ACCOUNTING_METRIC_MAX,
122 _CGROUP_IP_ACCOUNTING_METRIC_INVALID = -1,
123 } CGroupIPAccountingMetric;
125 typedef struct Unit Unit;
126 typedef struct Manager Manager;
128 void cgroup_context_init(CGroupContext *c);
129 void cgroup_context_done(CGroupContext *c);
130 void cgroup_context_dump(CGroupContext *c, FILE* f, const char *prefix);
132 CGroupMask cgroup_context_get_mask(CGroupContext *c);
134 void cgroup_context_free_device_allow(CGroupContext *c, CGroupDeviceAllow *a);
135 void cgroup_context_free_io_device_weight(CGroupContext *c, CGroupIODeviceWeight *w);
136 void cgroup_context_free_io_device_limit(CGroupContext *c, CGroupIODeviceLimit *l);
137 void cgroup_context_free_blockio_device_weight(CGroupContext *c, CGroupBlockIODeviceWeight *w);
138 void cgroup_context_free_blockio_device_bandwidth(CGroupContext *c, CGroupBlockIODeviceBandwidth *b);
140 CGroupMask unit_get_own_mask(Unit *u);
141 CGroupMask unit_get_delegate_mask(Unit *u);
142 CGroupMask unit_get_members_mask(Unit *u);
143 CGroupMask unit_get_siblings_mask(Unit *u);
144 CGroupMask unit_get_subtree_mask(Unit *u);
146 CGroupMask unit_get_target_mask(Unit *u);
147 CGroupMask unit_get_enable_mask(Unit *u);
149 bool unit_get_needs_bpf(Unit *u);
151 void unit_update_cgroup_members_masks(Unit *u);
153 const char *unit_get_realized_cgroup_path(Unit *u, CGroupMask mask);
154 char *unit_default_cgroup_path(Unit *u);
155 int unit_set_cgroup_path(Unit *u, const char *path);
156 int unit_pick_cgroup_path(Unit *u);
158 int unit_realize_cgroup(Unit *u);
159 void unit_release_cgroup(Unit *u);
160 void unit_prune_cgroup(Unit *u);
161 int unit_watch_cgroup(Unit *u);
163 void unit_add_to_cgroup_empty_queue(Unit *u);
165 int unit_attach_pids_to_cgroup(Unit *u, Set *pids, const char *suffix_path);
170 int manager_setup_cgroup(Manager *m);
171 void manager_shutdown_cgroup(Manager *m, bool delete);
173 #if 0 /// UNNEEDED by elogind
174 unsigned manager_dispatch_cgroup_realize_queue(Manager *m);
176 Unit *manager_get_unit_by_cgroup(Manager *m, const char *cgroup);
177 Unit *manager_get_unit_by_pid_cgroup(Manager *m, pid_t pid);
178 Unit* manager_get_unit_by_pid(Manager *m, pid_t pid);
180 int unit_search_main_pid(Unit *u, pid_t *ret);
181 int unit_watch_all_pids(Unit *u);
183 int unit_synthesize_cgroup_empty_event(Unit *u);
185 int unit_get_memory_current(Unit *u, uint64_t *ret);
186 int unit_get_tasks_current(Unit *u, uint64_t *ret);
187 int unit_get_cpu_usage(Unit *u, nsec_t *ret);
188 int unit_get_ip_accounting(Unit *u, CGroupIPAccountingMetric metric, uint64_t *ret);
190 int unit_reset_cpu_accounting(Unit *u);
191 int unit_reset_ip_accounting(Unit *u);
193 #define UNIT_CGROUP_BOOL(u, name) \
195 CGroupContext *cc = unit_get_cgroup_context(u); \
196 cc ? cc->name : false; \
200 bool manager_owns_root_cgroup(Manager *m);
202 #if 0 /// UNNEEDED by elogind
203 bool unit_has_root_cgroup(Unit *u);
206 int manager_notify_cgroup_empty(Manager *m, const char *group);
208 #if 0 /// UNNEEDED by elogind
209 void unit_invalidate_cgroup(Unit *u, CGroupMask m);
210 void unit_invalidate_cgroup_bpf(Unit *u);
212 void manager_invalidate_startup_units(Manager *m);
214 const char* cgroup_device_policy_to_string(CGroupDevicePolicy i) _const_;
215 CGroupDevicePolicy cgroup_device_policy_from_string(const char *s) _pure_;
217 bool unit_cgroup_delegate(Unit *u);