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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657// SPDX-License-Identifier: GPL-2.0-only#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>");