Esempi in C++ (Cpp) per lkdtm_do_action

Esempio n. 1

File: lkdtm.c Progetto: crseanpaul/muon-catalyzed-fusion

/* Special entry to just crash directly. Available without KPROBEs */
static ssize_t direct_entry(struct file *f, const char __user *user_buf,
		size_t count, loff_t *off)
{
	enum ctype type;
	char *buf;

	if (count >= PAGE_SIZE)
		return -EINVAL;
	if (count < 1)
		return -EINVAL;

	buf = (char *)__get_free_page(GFP_KERNEL);
	if (!buf)
		return -ENOMEM;
	if (copy_from_user(buf, user_buf, count)) {
		free_page((unsigned long) buf);
		return -EFAULT;
	}
	/* NULL-terminate and remove enter */
	buf[count] = '\0';
	strim(buf);

	type = parse_cp_type(buf, count);
	free_page((unsigned long) buf);
	if (type == CT_NONE)
		return -EINVAL;

	pr_info("Performing direct entry %s\n", cp_type_to_str(type));
	lkdtm_do_action(type);
	*off += count;

	return count;
}

Esempio n. 2

File: lkdtm.c Progetto: AbheekG/XIA-for-Linux

static void lkdtm_handler(void)
{
    count--;
    printk(KERN_INFO "lkdtm: Crash point %s of type %s hit, trigger in %d rounds\n",
           cp_name_to_str(cpoint), cp_type_to_str(cptype), count);

    if (count == 0) {
        lkdtm_do_action(cptype);
        count = cpoint_count;
    }
}

Esempio n. 3

File: lkdtm.c Progetto: rrowicki/Chrono_Kernel-1

static void lkdtm_handler(void)
{
	unsigned long flags;

	spin_lock_irqsave(&count_lock, flags);
	count--;
//	printk(KERN_INFO "lkdtm: Crash point %s of type %s hit, trigger in %d rounds\n",
;

	if (count == 0) {
		lkdtm_do_action(cptype);
		count = cpoint_count;
	}
	spin_unlock_irqrestore(&count_lock, flags);
}

Esempio n. 4

File: lkdtm.c Progetto: crseanpaul/muon-catalyzed-fusion

static void lkdtm_handler(void)
{
	unsigned long flags;
	bool do_it = false;

	spin_lock_irqsave(&count_lock, flags);
	count--;
	pr_info("Crash point %s of type %s hit, trigger in %d rounds\n",
		cp_name_to_str(cpoint), cp_type_to_str(cptype), count);

	if (count == 0) {
		do_it = true;
		count = cpoint_count;
	}
	spin_unlock_irqrestore(&count_lock, flags);

	if (do_it)
		lkdtm_do_action(cptype);
}

Esempio n. 5

File: lkdtm.c Progetto: crseanpaul/muon-catalyzed-fusion

static int lkdtm_register_cpoint(enum cname which)
{
	int ret;

	cpoint = CN_INVALID;
	if (lkdtm.entry != NULL)
		unregister_jprobe(&lkdtm);

	switch (which) {
	case CN_DIRECT:
		lkdtm_do_action(cptype);
		return 0;
	case CN_INT_HARDWARE_ENTRY:
		lkdtm.kp.symbol_name = "do_IRQ";
		lkdtm.entry = (kprobe_opcode_t*) jp_do_irq;
		break;
	case CN_INT_HW_IRQ_EN:
		lkdtm.kp.symbol_name = "handle_IRQ_event";
		lkdtm.entry = (kprobe_opcode_t*) jp_handle_irq_event;
		break;
	case CN_INT_TASKLET_ENTRY:
		lkdtm.kp.symbol_name = "tasklet_action";
		lkdtm.entry = (kprobe_opcode_t*) jp_tasklet_action;
		break;
	case CN_FS_DEVRW:
		lkdtm.kp.symbol_name = "ll_rw_block";
		lkdtm.entry = (kprobe_opcode_t*) jp_ll_rw_block;
		break;
	case CN_MEM_SWAPOUT:
		lkdtm.kp.symbol_name = "shrink_inactive_list";
		lkdtm.entry = (kprobe_opcode_t*) jp_shrink_inactive_list;
		break;
	case CN_TIMERADD:
		lkdtm.kp.symbol_name = "hrtimer_start";
		lkdtm.entry = (kprobe_opcode_t*) jp_hrtimer_start;
		break;
	case CN_SCSI_DISPATCH_CMD:
		lkdtm.kp.symbol_name = "scsi_dispatch_cmd";
		lkdtm.entry = (kprobe_opcode_t*) jp_scsi_dispatch_cmd;
		break;
	case CN_IDE_CORE_CP:
#ifdef CONFIG_IDE
		lkdtm.kp.symbol_name = "generic_ide_ioctl";
		lkdtm.entry = (kprobe_opcode_t*) jp_generic_ide_ioctl;
#else
		pr_info("Crash point not available\n");
		return -EINVAL;
#endif
		break;
	default:
		pr_info("Invalid Crash Point\n");
		return -EINVAL;
	}

	cpoint = which;
	if ((ret = register_jprobe(&lkdtm)) < 0) {
		pr_info("Couldn't register jprobe\n");
		cpoint = CN_INVALID;
	}

	return ret;
}