1 /* SPDX-License-Identifier: LGPL-2.1+ */
5 This file is part of systemd.
7 Copyright 2013 Lennart Poettering
12 #include "cgroup-util.h"
13 //#include "ip-address-access.h"
15 //#include "time-util.h"
17 #if 0 /// UNNEEDED by elogind
18 typedef struct CGroupContext CGroupContext;
19 typedef struct CGroupDeviceAllow CGroupDeviceAllow;
20 typedef struct CGroupIODeviceWeight CGroupIODeviceWeight;
21 typedef struct CGroupIODeviceLimit CGroupIODeviceLimit;
22 typedef struct CGroupBlockIODeviceWeight CGroupBlockIODeviceWeight;
23 typedef struct CGroupBlockIODeviceBandwidth CGroupBlockIODeviceBandwidth;
25 typedef enum CGroupDevicePolicy {
27 /* When devices listed, will allow those, plus built-in ones,
28 if none are listed will allow everything. */
31 /* Everything forbidden, except built-in ones and listed ones. */
34 /* Everythings forbidden, except for the listed devices */
37 _CGROUP_DEVICE_POLICY_MAX,
38 _CGROUP_DEVICE_POLICY_INVALID = -1
41 struct CGroupDeviceAllow {
42 LIST_FIELDS(CGroupDeviceAllow, device_allow);
49 struct CGroupIODeviceWeight {
50 LIST_FIELDS(CGroupIODeviceWeight, device_weights);
55 struct CGroupIODeviceLimit {
56 LIST_FIELDS(CGroupIODeviceLimit, device_limits);
58 uint64_t limits[_CGROUP_IO_LIMIT_TYPE_MAX];
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 /* For unified hierarchy */
84 uint64_t startup_cpu_weight;
85 usec_t cpu_quota_per_sec_usec;
88 uint64_t startup_io_weight;
89 LIST_HEAD(CGroupIODeviceWeight, io_device_weights);
90 LIST_HEAD(CGroupIODeviceLimit, io_device_limits);
95 uint64_t memory_swap_max;
97 LIST_HEAD(IPAddressAccessItem, ip_address_allow);
98 LIST_HEAD(IPAddressAccessItem, ip_address_deny);
100 /* For legacy hierarchies */
102 uint64_t startup_cpu_shares;
104 uint64_t blockio_weight;
105 uint64_t startup_blockio_weight;
106 LIST_HEAD(CGroupBlockIODeviceWeight, blockio_device_weights);
107 LIST_HEAD(CGroupBlockIODeviceBandwidth, blockio_device_bandwidths);
109 uint64_t memory_limit;
111 CGroupDevicePolicy device_policy;
112 LIST_HEAD(CGroupDeviceAllow, device_allow);
118 CGroupMask delegate_controllers;
121 /* Used when querying IP accounting data */
122 typedef enum CGroupIPAccountingMetric {
123 CGROUP_IP_INGRESS_BYTES,
124 CGROUP_IP_INGRESS_PACKETS,
125 CGROUP_IP_EGRESS_BYTES,
126 CGROUP_IP_EGRESS_PACKETS,
127 _CGROUP_IP_ACCOUNTING_METRIC_MAX,
128 _CGROUP_IP_ACCOUNTING_METRIC_INVALID = -1,
129 } CGroupIPAccountingMetric;
133 void cgroup_context_init(CGroupContext *c);
134 void cgroup_context_done(CGroupContext *c);
135 void cgroup_context_dump(CGroupContext *c, FILE* f, const char *prefix);
137 CGroupMask cgroup_context_get_mask(CGroupContext *c);
139 void cgroup_context_free_device_allow(CGroupContext *c, CGroupDeviceAllow *a);
140 void cgroup_context_free_io_device_weight(CGroupContext *c, CGroupIODeviceWeight *w);
141 void cgroup_context_free_io_device_limit(CGroupContext *c, CGroupIODeviceLimit *l);
142 void cgroup_context_free_blockio_device_weight(CGroupContext *c, CGroupBlockIODeviceWeight *w);
143 void cgroup_context_free_blockio_device_bandwidth(CGroupContext *c, CGroupBlockIODeviceBandwidth *b);
145 CGroupMask unit_get_own_mask(Unit *u);
146 CGroupMask unit_get_delegate_mask(Unit *u);
147 CGroupMask unit_get_members_mask(Unit *u);
148 CGroupMask unit_get_siblings_mask(Unit *u);
149 CGroupMask unit_get_subtree_mask(Unit *u);
151 CGroupMask unit_get_target_mask(Unit *u);
152 CGroupMask unit_get_enable_mask(Unit *u);
154 bool unit_get_needs_bpf(Unit *u);
156 void unit_update_cgroup_members_masks(Unit *u);
158 const char *unit_get_realized_cgroup_path(Unit *u, CGroupMask mask);
159 char *unit_default_cgroup_path(Unit *u);
160 int unit_set_cgroup_path(Unit *u, const char *path);
161 int unit_pick_cgroup_path(Unit *u);
163 int unit_realize_cgroup(Unit *u);
164 void unit_release_cgroup(Unit *u);
165 void unit_prune_cgroup(Unit *u);
166 int unit_watch_cgroup(Unit *u);
168 void unit_add_to_cgroup_empty_queue(Unit *u);
170 int unit_attach_pids_to_cgroup(Unit *u, Set *pids, const char *suffix_path);
175 int manager_setup_cgroup(Manager *m);
176 void manager_shutdown_cgroup(Manager *m, bool delete);
178 #if 0 /// UNNEEDED by elogind
179 unsigned manager_dispatch_cgroup_realize_queue(Manager *m);
181 Unit *manager_get_unit_by_cgroup(Manager *m, const char *cgroup);
182 Unit *manager_get_unit_by_pid_cgroup(Manager *m, pid_t pid);
183 Unit* manager_get_unit_by_pid(Manager *m, pid_t pid);
185 int unit_search_main_pid(Unit *u, pid_t *ret);
186 int unit_watch_all_pids(Unit *u);
188 int unit_synthesize_cgroup_empty_event(Unit *u);
190 int unit_get_memory_current(Unit *u, uint64_t *ret);
191 int unit_get_tasks_current(Unit *u, uint64_t *ret);
192 int unit_get_cpu_usage(Unit *u, nsec_t *ret);
193 int unit_get_ip_accounting(Unit *u, CGroupIPAccountingMetric metric, uint64_t *ret);
195 int unit_reset_cpu_accounting(Unit *u);
196 int unit_reset_ip_accounting(Unit *u);
198 #define UNIT_CGROUP_BOOL(u, name) \
200 CGroupContext *cc = unit_get_cgroup_context(u); \
201 cc ? cc->name : false; \
205 bool manager_owns_root_cgroup(Manager *m);
207 #if 0 /// UNNEEDED by elogind
208 bool unit_has_root_cgroup(Unit *u);
211 int manager_notify_cgroup_empty(Manager *m, const char *group);
213 #if 0 /// UNNEEDED by elogind
214 void unit_invalidate_cgroup(Unit *u, CGroupMask m);
215 void unit_invalidate_cgroup_bpf(Unit *u);
217 void manager_invalidate_startup_units(Manager *m);
219 const char* cgroup_device_policy_to_string(CGroupDevicePolicy i) _const_;
220 CGroupDevicePolicy cgroup_device_policy_from_string(const char *s) _pure_;
222 bool unit_cgroup_delegate(Unit *u);