gfwleak/zhangyang-variable-monitor
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adjust output

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zy
2023-12-06 20:55:22 -05:00
parent b490da236e
commit 806356363c
3 changed files with 7 additions and 12 deletions
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6
source/module/monitor_kernel.c
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@@ -21,8 +21,7 @@ struct my_device_data {
static int device_open(struct inode *inode, struct file *file) {
struct my_device_data *data;
printk(KERN_INFO "variable_monitor fun: %s with pid %d\n", __FUNCTION__,
current->pid);
printk(KERN_INFO "variable_monitor open device with pid %d\n", current->pid);
// save pid
data = kmalloc(sizeof(*data), GFP_KERNEL);
if (!data)
@@ -35,8 +34,7 @@ static int device_open(struct inode *inode, struct file *file) {
static int device_release(struct inode *inode, struct file *file) {
// load pid
struct my_device_data *data = file->private_data;
printk(KERN_INFO "variable_monitor fun: %s with pid %d\n", __FUNCTION__,
data->pid);
printk(KERN_INFO "variable_monitor release device with pid %d\n", data->pid);
// clear watch with pid
clear_watch(data->pid);
kfree(data); // free data memory

10
source/module/monitor_kernel_lib.c
View File

@@ -315,17 +315,15 @@ int start_watch_variable(watch_arg warg) {
timer = get_timer(warg.time_ns); // get a valuable timer
if (timer == NULL) {
printk(KERN_ERR "Timer is full\n");
printk(KERN_ERR "No timer available, ALL timer is full\n");
return -1;
}
INIT_WORK(&timer->wk, diag_task_info_work);
printk(KERN_INFO "ptr transform kptr: %p\n", kptr);
printk(KERN_INFO "timer: %p\n", timer);
printk(KERN_INFO "timer->sentinel: %d, timer->time_ns: %lld\n",
timer->sentinel, timer->time_ns);
printk(KERN_INFO "timer->hr_timer: %p\n", &timer->hr_timer);
printk(KERN_INFO "Convert ptr to kptr: %p\n", kptr);
printk(KERN_INFO "Associated timer: %p , there are already %d variables, timer period %lld.\n", timer, timer->sentinel, timer->time_ns);
// printk(KERN_INFO "timer->hr_timer: %p\n", &timer->hr_timer);
TIMER_CANCEL(timer); // just in case
timer_add_watch(timer, k_watch_arg);

3
source/module/monitor_timer.c
View File

@@ -67,7 +67,6 @@ kernel_watch_timer *get_timer(unsigned long long time_ns) {
}
// if all timer is full
if (i >= MAX_TIMER_NUM) {
printk(KERN_ERR "No timer available\n");
return NULL;
}
// if a new timer, init it
@@ -97,7 +96,7 @@ kernel_watch_timer *get_timer(unsigned long long time_ns) {
unsigned char timer_add_watch(kernel_watch_timer *timer,
kernel_watch_arg k_watch_arg) {
if (TIMER_FILLED(timer)) {
printk(KERN_ERR "Timer is full\n");
printk(KERN_ERR "ALL Timer is full\n");
return -1;
}
memcpy(&timer->k_watch_args[timer->sentinel], &k_watch_arg,