#include <linux/kernel.h> #include <linux/module.h> #include <linux/netdevice.h> #include "notifier-error-inject.h" static int priority; module_param(priority, int, 0); MODULE_PARM_DESC(priority, "specify netdevice notifier priority"); static struct notifier_err_inject netdev_notifier_err_inject = { .actions = { { NOTIFIER_ERR_INJECT_ACTION(NETDEV_REGISTER) }, { NOTIFIER_ERR_INJECT_ACTION(NETDEV_CHANGEMTU) }, { NOTIFIER_ERR_INJECT_ACTION(NETDEV_CHANGENAME) }, { NOTIFIER_ERR_INJECT_ACTION(NETDEV_PRE_UP) }, { NOTIFIER_ERR_INJECT_ACTION(NETDEV_PRE_TYPE_CHANGE) }, { NOTIFIER_ERR_INJECT_ACTION(NETDEV_POST_INIT) }, { NOTIFIER_ERR_INJECT_ACTION(NETDEV_PRECHANGEMTU) }, { NOTIFIER_ERR_INJECT_ACTION(NETDEV_PRECHANGEUPPER) }, { NOTIFIER_ERR_INJECT_ACTION(NETDEV_CHANGEUPPER) }, {} } }; static struct dentry *dir; static int netdev_err_inject_init(void) { int err; dir = notifier_err_inject_init("netdev", notifier_err_inject_dir, &netdev_notifier_err_inject, priority); if (IS_ERR(dir)) return PTR_ERR(dir); err = register_netdevice_notifier(&netdev_notifier_err_inject.nb); if (err) debugfs_remove_recursive(dir); return err; } static void netdev_err_inject_exit(void) { unregister_netdevice_notifier(&netdev_notifier_err_inject.nb); debugfs_remove_recursive(dir); } module_init(netdev_err_inject_init); module_exit(netdev_err_inject_exit); MODULE_DESCRIPTION("Netdevice notifier error injection module"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Nikolay Aleksandrov <razor@blackwall.org>");