/*
* TODO: this should be re-written to use the get_config_item("lxc.id_map")
* cmd api instead of getting the idmap from c->lxc_conf. The reason is
* that the id_maps may be different if the container was started with a
* -f or -s argument.
* The reason I'm punting on that is because we'll need to parse the
* idmap results.
*/
static bool cgm_attach(const char *name, const char *lxcpath, pid_t pid)
{
bool pass = false;
char *cgroup = NULL;
struct lxc_container *c;
c = lxc_container_new(name, lxcpath);
if (!c) {
ERROR("Could not load container %s:%s", lxcpath, name);
return false;
}
if (!collect_subsytems()) {
ERROR("Error collecting cgroup subsystems");
goto out;
}
// cgm_create makes sure that we have the same cgroup name for all
// subsystems, so since this is a slow command over the cmd socket,
// just get the cgroup name for the first one.
cgroup = lxc_cmd_get_cgroup_path(name, lxcpath, subsystems[0]);
if (!cgroup) {
ERROR("Failed to get cgroup for controller %s", subsystems[0]);
goto out;
}
if (!(pass = do_cgm_enter(pid, cgroup)))
ERROR("Failed to enter group %s", cgroup);
out:
free(cgroup);
lxc_container_put(c);
return pass;
}
/*
* TODO: this should be re-written to use the get_config_item("lxc.id_map")
* cmd api instead of getting the idmap from c->lxc_conf. The reason is
* that the id_maps may be different if the container was started with a
* -f or -s argument.
* The reason I'm punting on that is because we'll need to parse the
* idmap results.
*/
static bool cgm_attach(const char *name, const char *lxcpath, pid_t pid)
{
bool pass;
char *cgroup = NULL;
if (!cgm_dbus_connect()) {
ERROR("Error connecting to cgroup manager");
return false;
}
// cgm_create makes sure that we have the same cgroup name for all
// subsystems, so since this is a slow command over the cmd socket,
// just get the cgroup name for the first one.
cgroup = try_get_abs_cgroup(name, lxcpath, subsystems[0]);
if (!cgroup) {
ERROR("Failed to get cgroup for controller %s", subsystems[0]);
cgm_dbus_disconnect();
return false;
}
pass = do_cgm_enter(pid, cgroup, abs_cgroup_supported());
cgm_dbus_disconnect();
if (!pass)
ERROR("Failed to enter group %s", cgroup);
free_abs_cgroup(cgroup);
return pass;
}
static inline bool cgm_enter(void *hdata, pid_t pid)
{
struct cgm_data *d = hdata;
bool ret = false;
if (!cgm_dbus_connect()) {
ERROR("Error connecting to cgroup manager");
return false;
}
if (!d || !d->cgroup_path)
goto out;
if (do_cgm_enter(pid, d->cgroup_path, false))
ret = true;
out:
cgm_dbus_disconnect();
return ret;
}
static inline bool cgm_enter(struct lxc_handler *handler)
{
char *cgroup_path = handler->cgroup_info->data;
return do_cgm_enter(handler->pid, cgroup_path);
}
