[CP] add consumer group name check

src/pl/sys_package/ob_pl_dbms_resource_manager.cpp

@@ -133,6 +133,10 @@ int ObPlDBMSResourceManager::create_consumer_group(
       LOG_WARN("name of consumer group cannot be null or empty", K(ret));
     // consumer_group 肯定存在，所以可以 get_string 读取，
     // COMMENT 是可选的可能为 null，所以传入 ObObj
+    } else if (!GCTX.cgroup_ctrl_->is_valid_group_name(consumer_group)) {
+      ret = OB_INVALID_ARGUMENT;
+      LOG_USER_ERROR(OB_INVALID_ARGUMENT, "invalid consumer group name");
+      LOG_WARN("invalid consumer group name", K(ret), K(consumer_group));
     } else if (OB_FAIL(proxy.create_consumer_group(tenant_id, consumer_group, params.at(COMMENT)))) {
       LOG_WARN("fail create consumer_group", K(tenant_id), K(consumer_group), K(ret));
     }

src/share/resource_manager/ob_cgroup_ctrl.cpp

@@ -59,6 +59,26 @@ bool OBGroupIOInfo::is_valid() const
   return min_percent_ >= 0 && max_percent_ >= min_percent_ && max_percent_ <= 100 && weight_percent_ >= 0 && weight_percent_ <= 100;
 }
 
+bool ObCgroupCtrl::is_valid_group_name(ObString &group_name)
+{
+  bool bool_ret = true;
+  const char *group_name_ptr = group_name.ptr();
+  if (group_name.length() < 0 || group_name.length() > GROUP_NAME_BUFSIZE) {
+    bool_ret = false;
+  } else {
+    for(int i = 0; i < group_name.length() && bool_ret; i++) {
+      // only support [a-zA-Z0-9_]
+      if (!((group_name_ptr[i] >= 'a' && group_name_ptr[i] <= 'z') ||
+            (group_name_ptr[i] >= 'A' && group_name_ptr[i] <= 'Z') ||
+            (group_name_ptr[i] >= '0' && group_name_ptr[i] <= '9') ||
+            (group_name_ptr[i] == '_'))) {
+        bool_ret = false;
+      }
+    }
+  }
+  return bool_ret;
+}
+
 // 创建cgroup初始目录结构，将所有线程加入other组
 int ObCgroupCtrl::init()
 {

src/share/resource_manager/ob_cgroup_ctrl.h

@@ -143,6 +143,8 @@ public:
   void destroy() { /* 进程退出后tid会自动从cgroup tasks中删除 */ }
   bool is_valid() { return valid_; }
 
+  bool is_valid_group_name(common::ObString &group_name);
+
   // 删除租户cgroup规则
   int remove_tenant_cgroup(const uint64_t tenant_id);