From 3b0a343647bed577586989fb702b760bd280844a Mon Sep 17 00:00:00 2001 From: Reveriel Date: Tue, 11 Dec 2018 09:00:29 +0000 Subject: [PATCH] kernel module: format, use tab to indent. --- kernel_modules/character_device_create.c | 52 ++++++++-------- kernel_modules/memcpy_overflow.c | 4 +- kernel_modules/mmap.c | 20 +++--- kernel_modules/netlink.c | 58 +++++++++--------- kernel_modules/pci_min.c | 78 ++++++++++++------------ kernel_modules/ring0.c | 2 +- kernel_modules/seq_file.c | 20 +++--- 7 files changed, 117 insertions(+), 117 deletions(-) diff --git a/kernel_modules/character_device_create.c b/kernel_modules/character_device_create.c index de51964..16af748 100644 --- a/kernel_modules/character_device_create.c +++ b/kernel_modules/character_device_create.c @@ -33,42 +33,42 @@ static const struct file_operations fops = { static void cleanup(int device_created) { - if (device_created) { - device_destroy(myclass, major); - cdev_del(&mycdev); - } - if (myclass) - class_destroy(myclass); - if (major != -1) - unregister_chrdev_region(major, 1); + if (device_created) { + device_destroy(myclass, major); + cdev_del(&mycdev); + } + if (myclass) + class_destroy(myclass); + if (major != -1) + unregister_chrdev_region(major, 1); } static int myinit(void) { - int device_created = 0; + int device_created = 0; - /* cat /proc/devices */ - if (alloc_chrdev_region(&major, 0, 1, NAME "_proc") < 0) - goto error; - /* ls /sys/class */ - if ((myclass = class_create(THIS_MODULE, NAME "_sys")) == NULL) - goto error; - /* ls /dev/ */ - if (device_create(myclass, NULL, major, NULL, NAME "_dev") == NULL) - goto error; - device_created = 1; - cdev_init(&mycdev, &fops); - if (cdev_add(&mycdev, major, 1) == -1) - goto error; - return 0; + /* cat /proc/devices */ + if (alloc_chrdev_region(&major, 0, 1, NAME "_proc") < 0) + goto error; + /* ls /sys/class */ + if ((myclass = class_create(THIS_MODULE, NAME "_sys")) == NULL) + goto error; + /* ls /dev/ */ + if (device_create(myclass, NULL, major, NULL, NAME "_dev") == NULL) + goto error; + device_created = 1; + cdev_init(&mycdev, &fops); + if (cdev_add(&mycdev, major, 1) == -1) + goto error; + return 0; error: - cleanup(device_created); - return -1; + cleanup(device_created); + return -1; } static void myexit(void) { - cleanup(1); + cleanup(1); } module_init(myinit) diff --git a/kernel_modules/memcpy_overflow.c b/kernel_modules/memcpy_overflow.c index 03384a8..9e5a94a 100644 --- a/kernel_modules/memcpy_overflow.c +++ b/kernel_modules/memcpy_overflow.c @@ -8,8 +8,8 @@ static int myinit(void) { void *dst, *src; - dst = kmalloc(0x10, GFP_KERNEL); - src = kmalloc(0x1000000, GFP_KERNEL); + dst = kmalloc(0x10, GFP_KERNEL); + src = kmalloc(0x1000000, GFP_KERNEL); memcpy(dst, src, 0x1000000); return 0; } diff --git a/kernel_modules/mmap.c b/kernel_modules/mmap.c index 4a0dd26..9d0ec45 100644 --- a/kernel_modules/mmap.c +++ b/kernel_modules/mmap.c @@ -24,7 +24,7 @@ static void vm_close(struct vm_area_struct *vma) } /* First page access. */ - int (*fault)(struct vm_fault *vmf); +int (*fault)(struct vm_fault *vmf); static int vm_fault(struct vm_fault *vmf) { struct page *page; @@ -79,13 +79,13 @@ static int open(struct inode *inode, struct file *filp) static ssize_t read(struct file *filp, char __user *buf, size_t len, loff_t *off) { struct mmap_info *info; - int ret; + int ret; pr_info("read\n"); info = filp->private_data; - ret = min(len, (size_t)BUFFER_SIZE); - if (copy_to_user(buf, info->data, ret)) { - ret = -EFAULT; + ret = min(len, (size_t)BUFFER_SIZE); + if (copy_to_user(buf, info->data, ret)) { + ret = -EFAULT; } return ret; } @@ -96,11 +96,11 @@ static ssize_t write(struct file *filp, const char __user *buf, size_t len, loff pr_info("write\n"); info = filp->private_data; - if (copy_from_user(info->data, buf, min(len, (size_t)BUFFER_SIZE))) { - return -EFAULT; - } else { - return len; - } + if (copy_from_user(info->data, buf, min(len, (size_t)BUFFER_SIZE))) { + return -EFAULT; + } else { + return len; + } } static int release(struct inode *inode, struct file *filp) diff --git a/kernel_modules/netlink.c b/kernel_modules/netlink.c index d73f417..34b5bca 100644 --- a/kernel_modules/netlink.c +++ b/kernel_modules/netlink.c @@ -18,47 +18,47 @@ static void callback(struct sk_buff *skb) { char readbuf[9]; size_t readbuflen; - int pid; - int res; - struct nlmsghdr *nlh; - struct sk_buff *skb_out; + int pid; + int res; + struct nlmsghdr *nlh; + struct sk_buff *skb_out; - nlh = (struct nlmsghdr *)skb->data; - pr_info("kernel received: %s\n", (char *)nlmsg_data(nlh)); + nlh = (struct nlmsghdr *)skb->data; + pr_info("kernel received: %s\n", (char *)nlmsg_data(nlh)); if (sleep) usleep_range(1000000, 1000001); readbuflen = snprintf(readbuf, sizeof(readbuf), "%x", count); - count++; - pid = nlh->nlmsg_pid; - skb_out = nlmsg_new(readbuflen, 0); - if (!skb_out) { - pr_err("nlmsg_new\n"); - return; - } - nlh = nlmsg_put(skb_out, 0, 0, NLMSG_DONE, readbuflen, 0); - NETLINK_CB(skb_out).dst_group = 0; - strncpy(nlmsg_data(nlh), readbuf, readbuflen); - res = nlmsg_unicast(nl_sk, skb_out, pid); - if (res < 0) - pr_info("nlmsg_unicast\n"); + count++; + pid = nlh->nlmsg_pid; + skb_out = nlmsg_new(readbuflen, 0); + if (!skb_out) { + pr_err("nlmsg_new\n"); + return; + } + nlh = nlmsg_put(skb_out, 0, 0, NLMSG_DONE, readbuflen, 0); + NETLINK_CB(skb_out).dst_group = 0; + strncpy(nlmsg_data(nlh), readbuf, readbuflen); + res = nlmsg_unicast(nl_sk, skb_out, pid); + if (res < 0) + pr_info("nlmsg_unicast\n"); } static int myinit(void) { - struct netlink_kernel_cfg cfg = { - .input = callback, - }; - nl_sk = netlink_kernel_create(&init_net, NETLINK_USER, &cfg); - if (!nl_sk) { - pr_err("netlink_kernel_create\n"); - return -10; - } - return 0; + struct netlink_kernel_cfg cfg = { + .input = callback, + }; + nl_sk = netlink_kernel_create(&init_net, NETLINK_USER, &cfg); + if (!nl_sk) { + pr_err("netlink_kernel_create\n"); + return -10; + } + return 0; } static void myexit(void) { - netlink_kernel_release(nl_sk); + netlink_kernel_release(nl_sk); } module_init(myinit); diff --git a/kernel_modules/pci_min.c b/kernel_modules/pci_min.c index 1b749f3..37269f5 100644 --- a/kernel_modules/pci_min.c +++ b/kernel_modules/pci_min.c @@ -15,75 +15,75 @@ #define QEMU_VENDOR_ID 0x1234 static struct pci_device_id id_table[] = { - { PCI_DEVICE(QEMU_VENDOR_ID, EDU_DEVICE_ID), }, - { 0, } + { PCI_DEVICE(QEMU_VENDOR_ID, EDU_DEVICE_ID), }, + { 0, } }; MODULE_DEVICE_TABLE(pci, id_table); static int major; static struct pci_dev *pdev; static void __iomem *mmio; static struct file_operations fops = { - .owner = THIS_MODULE, + .owner = THIS_MODULE, }; static irqreturn_t irq_handler(int irq, void *dev) { - pr_info("irq_handler irq = %d dev = %d\n", irq, *(int *)dev); - iowrite32(0, mmio + 4); - return IRQ_HANDLED; + pr_info("irq_handler irq = %d dev = %d\n", irq, *(int *)dev); + iowrite32(0, mmio + 4); + return IRQ_HANDLED; } static int probe(struct pci_dev *dev, const struct pci_device_id *id) { - pr_info("probe\n"); - major = register_chrdev(0, CDEV_NAME, &fops); - pdev = dev; - if (pci_enable_device(dev) < 0) { - dev_err(&(pdev->dev), "pci_enable_device\n"); - goto error; - } - if (pci_request_region(dev, BAR, "myregion0")) { - dev_err(&(pdev->dev), "pci_request_region\n"); - goto error; - } - mmio = pci_iomap(pdev, BAR, pci_resource_len(pdev, BAR)); - pr_info("dev->irq = %u\n", dev->irq); - if (request_irq(dev->irq, irq_handler, IRQF_SHARED, "pci_irq_handler0", &major) < 0) { - dev_err(&(dev->dev), "request_irq\n"); - goto error; - } - iowrite32(0x12345678, mmio); - return 0; + pr_info("probe\n"); + major = register_chrdev(0, CDEV_NAME, &fops); + pdev = dev; + if (pci_enable_device(dev) < 0) { + dev_err(&(pdev->dev), "pci_enable_device\n"); + goto error; + } + if (pci_request_region(dev, BAR, "myregion0")) { + dev_err(&(pdev->dev), "pci_request_region\n"); + goto error; + } + mmio = pci_iomap(pdev, BAR, pci_resource_len(pdev, BAR)); + pr_info("dev->irq = %u\n", dev->irq); + if (request_irq(dev->irq, irq_handler, IRQF_SHARED, "pci_irq_handler0", &major) < 0) { + dev_err(&(dev->dev), "request_irq\n"); + goto error; + } + iowrite32(0x12345678, mmio); + return 0; error: - return 1; + return 1; } static void remove(struct pci_dev *dev) { - pr_info("remove\n"); - free_irq(dev->irq, &major); - pci_release_region(dev, BAR); - unregister_chrdev(major, CDEV_NAME); + pr_info("remove\n"); + free_irq(dev->irq, &major); + pci_release_region(dev, BAR); + unregister_chrdev(major, CDEV_NAME); } static struct pci_driver pci_driver = { - .name = CDEV_NAME, - .id_table = id_table, - .probe = probe, - .remove = remove, + .name = CDEV_NAME, + .id_table = id_table, + .probe = probe, + .remove = remove, }; static int myinit(void) { - if (pci_register_driver(&pci_driver) < 0) { - return 1; - } - return 0; + if (pci_register_driver(&pci_driver) < 0) { + return 1; + } + return 0; } static void myexit(void) { - pci_unregister_driver(&pci_driver); + pci_unregister_driver(&pci_driver); } module_init(myinit); diff --git a/kernel_modules/ring0.c b/kernel_modules/ring0.c index 1f3a599..1fad122 100644 --- a/kernel_modules/ring0.c +++ b/kernel_modules/ring0.c @@ -14,7 +14,7 @@ static int myinit(void) pr_info("cr2 = 0x%8.8llX\n", (unsigned long long)ring0_regs.cr2); pr_info("cr3 = 0x%8.8llX\n", (unsigned long long)ring0_regs.cr3); #endif - return 0; + return 0; } static void myexit(void) {} diff --git a/kernel_modules/seq_file.c b/kernel_modules/seq_file.c index 208b434..f24fd1f 100644 --- a/kernel_modules/seq_file.c +++ b/kernel_modules/seq_file.c @@ -72,24 +72,24 @@ static int show(struct seq_file *s, void *v) } static struct seq_operations my_seq_ops = { - .next = next, - .show = show, - .start = start, - .stop = stop, + .next = next, + .show = show, + .start = start, + .stop = stop, }; static int open(struct inode *inode, struct file *file) { pr_info("open\n"); - return seq_open(file, &my_seq_ops); + return seq_open(file, &my_seq_ops); } static struct file_operations fops = { - .owner = THIS_MODULE, - .llseek = seq_lseek, - .open = open, - .read = seq_read, - .release = seq_release + .owner = THIS_MODULE, + .llseek = seq_lseek, + .open = open, + .read = seq_read, + .release = seq_release }; static int myinit(void)