Add kernel module .c file with compilation res

Author: guy-davidi

Makefile

@@ -0,0 +1,9 @@
+obj-m += net_device.o
+
+all:
+	make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
+
+clean:
+	make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
+	rm -f *.c~
+	rm -f test

Module.symvers

@@ -0,0 +1 @@
+/home/guy/projects/NetDevice/net_device.ko

modules.order

@@ -0,0 +1,67 @@
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+
+static struct net_device *netdev;
+
+static int my_netdev_open(struct net_device *dev)
+{
+    printk(KERN_INFO "my_netdev: device opened\n");
+    netif_start_queue(dev);
+    return 0;
+}
+
+static int my_netdev_release(struct net_device *dev)
+{
+    printk(KERN_INFO "my_netdev: device released\n");
+    netif_stop_queue(dev);
+    return 0;
+}
+
+static netdev_tx_t my_netdev_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+    printk(KERN_INFO "my_netdev: packet transmitted\n");
+    dev_kfree_skb(skb);
+    return NETDEV_TX_OK;
+}
+
+static const struct net_device_ops my_netdev_ops = {
+    .ndo_open = my_netdev_open,
+    .ndo_stop = my_netdev_release,
+    .ndo_start_xmit = my_netdev_xmit,
+};
+
+static int __init my_netdev_init(void)
+{
+    netdev = alloc_etherdev(0);
+    if (!netdev) {
+        printk(KERN_ERR "my_netdev: failed to allocate etherdev\n");
+        return -ENOMEM;
+    }
+
+    netdev->netdev_ops = &my_netdev_ops;
+    strcpy(netdev->name, "my_netdev");
+
+    if (register_netdev(netdev)) {
+        printk(KERN_ERR "my_netdev: failed to register netdev\n");
+        free_netdev(netdev);
+        return -EINVAL;
+    }
+
+    printk(KERN_INFO "my_netdev: driver loaded\n");
+    return 0;
+}
+
+static void __exit my_netdev_exit(void)
+{
+    unregister_netdev(netdev);
+    free_netdev(netdev);
+    printk(KERN_INFO "my_netdev: driver unloaded\n");
+}
+
+module_init(my_netdev_init);
+module_exit(my_netdev_exit);
+MODULE_AUTHOR("Guy Davidi");
+MODULE_LICENSE("GPL");

net_device.c

@@ -0,0 +1,2 @@
+/home/guy/projects/NetDevice/net_device.o
+

net_device.ko

@@ -0,0 +1,44 @@
+#include <linux/module.h>
+#define INCLUDE_VERMAGIC
+#include <linux/build-salt.h>
+#include <linux/elfnote-lto.h>
+#include <linux/vermagic.h>
+#include <linux/compiler.h>
+
+BUILD_SALT;
+BUILD_LTO_INFO;
+
+MODULE_INFO(vermagic, VERMAGIC_STRING);
+MODULE_INFO(name, KBUILD_MODNAME);
+
+__visible struct module __this_module
+__section(".gnu.linkonce.this_module") = {
+	.name = KBUILD_MODNAME,
+	.init = init_module,
+#ifdef CONFIG_MODULE_UNLOAD
+	.exit = cleanup_module,
+#endif
+	.arch = MODULE_ARCH_INIT,
+};
+
+#ifdef CONFIG_RETPOLINE
+MODULE_INFO(retpoline, "Y");
+#endif
+
+static const struct modversion_info ____versions[]
+__used __section("__versions") = {
+	{ 0x32e21920, "module_layout" },
+	{ 0x78dfd8d2, "unregister_netdev" },
+	{ 0xc61dab50, "free_netdev" },
+	{ 0x777d7983, "register_netdev" },
+	{ 0xe89b1ac0, "alloc_etherdev_mqs" },
+	{ 0xeca961fe, "consume_skb" },
+	{ 0x5b8239ca, "__x86_return_thunk" },
+	{ 0x92997ed8, "_printk" },
+	{ 0xbdfb6dbb, "__fentry__" },
+};
+
+MODULE_INFO(depends, "");
+
+
+MODULE_INFO(srcversion, "3FCE99531E4FB4057BC2A04");