Merge pull request #1269 from zonque/netcls

cgroup: add support for net_cls controllers

1 files changed, 23 insertions, 1 deletions

diff --git a/src/core/cgroup.h b/src/core/cgroup.h
index e897b31451..457544b49f 100644
--- a/src/core/cgroup.h
+++ b/src/core/cgroup.h
@@ -26,6 +26,11 @@
 #include "list.h"
 #include "time-util.h"
 
+/* Maximum value for fixed (manual) net class ID assignment,
+ * and also the value at which the range of automatic assignments starts
+ */
+#define CGROUP_NETCLASS_FIXED_MAX UINT32_C(65535)
+
 typedef struct CGroupContext CGroupContext;
 typedef struct CGroupDeviceAllow CGroupDeviceAllow;
 typedef struct CGroupBlockIODeviceWeight CGroupBlockIODeviceWeight;
@@ -47,6 +52,17 @@ typedef enum CGroupDevicePolicy {
         _CGROUP_DEVICE_POLICY_INVALID = -1
 } CGroupDevicePolicy;
 
+typedef enum CGroupNetClassType {
+        /* Default - do not assign a net class */
+        CGROUP_NETCLASS_TYPE_NONE,
+
+        /* Automatically assign a net class */
+        CGROUP_NETCLASS_TYPE_AUTO,
+
+        /* Assign the net class that was provided by the user */
+        CGROUP_NETCLASS_TYPE_FIXED,
+} CGroupNetClassType;
+
 struct CGroupDeviceAllow {
         LIST_FIELDS(CGroupDeviceAllow, device_allow);
         char *path;
@@ -88,6 +104,9 @@ struct CGroupContext {
         CGroupDevicePolicy device_policy;
         LIST_HEAD(CGroupDeviceAllow, device_allow);
 
+        CGroupNetClassType netclass_type;
+        uint32_t netclass_id;
+
         uint64_t tasks_max;
 
         bool delegate;
@@ -99,7 +118,7 @@ struct CGroupContext {
 void cgroup_context_init(CGroupContext *c);
 void cgroup_context_done(CGroupContext *c);
 void cgroup_context_dump(CGroupContext *c, FILE* f, const char *prefix);
-void cgroup_context_apply(CGroupContext *c, CGroupMask mask, const char *path, ManagerState state);
+void cgroup_context_apply(CGroupContext *c, CGroupMask mask, const char *path, uint32_t netclass_id, ManagerState state);
 
 CGroupMask cgroup_context_get_mask(CGroupContext *c);
 
@@ -127,6 +146,9 @@ int unit_watch_cgroup(Unit *u);
 
 int unit_attach_pids_to_cgroup(Unit *u);
 
+int unit_add_to_netclass_cgroup(Unit *u);
+int unit_remove_from_netclass_cgroup(Unit *u);
+
 int manager_setup_cgroup(Manager *m);
 void manager_shutdown_cgroup(Manager *m, bool delete);