142 lines
3.7 KiB
C++
142 lines
3.7 KiB
C++
#ifndef UAPI_H
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#define UAPI_H
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#include <asm/ptrace.h> // struct pt_regs
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#include <sys/types.h>
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#include <cstddef> // size_t
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#include <stdlib.h>
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#include <string>
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// ioctl
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#define IOCTL_WATCH_VARIABLE 0
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#define IOCTL_DUMP_LOG 1
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// dump type
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#define VARIABLE_MONITOR_RECORD_TYPE 0x0
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#define VARIABLE_MONITOR_TASK_TYPE 0x1
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#define DEVICE "/dev/variable_monitor"
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#define DEVICE_BAK "/host/dev/variable_monitor"
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#define CGROUP_NAME_LEN 32 // max length of cgroup name
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#define TASK_COMM_LEN 16 // max length of task name
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#define BACKTRACE_DEPTH 30 // max depth of backtrace
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#define PROCESS_CHAINS_COUNT 10 // max count of process chains
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#define PROCESS_ARGV_LEN 128 // max length of process argv
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#define MAX_NAME_LEN (127) // max name length
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#define TIMER_MAX_WATCH_NUM (32) // A timer max watch number at once time
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#define DIAG_USER_STACK_SIZE (16 * 1024)
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typedef struct {
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pid_t task_id; // current process id
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char name[MAX_NAME_LEN + 1]; // name
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void *ptr; // virtual address
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long long threshold; // threshold value
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// long long true_value; // target true value
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} threshold;
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typedef struct {
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int et_type;
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unsigned long id;
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unsigned long long tv;
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int threshold_num;
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threshold threshold_record[TIMER_MAX_WATCH_NUM];
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} variable_monitor_record;
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typedef struct {
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char cgroup_buf[CGROUP_NAME_LEN];
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char cgroup_cpuset[CGROUP_NAME_LEN];
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int pid;
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int tgid;
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int container_pid;
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int container_tgid;
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long state;
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int task_type;
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unsigned long syscallno;
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/**
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* 0->user 1->sys 2->idle
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*/
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unsigned long sys_task;
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/**
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* 1->user mode 0->sys mode -1->unknown
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*/
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unsigned long user_mode;
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char comm[TASK_COMM_LEN];
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} task_detail;
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typedef struct {
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unsigned long stack[BACKTRACE_DEPTH];
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} kern_stack_detail;
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// typedef struct {
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// struct pt_regs regs;
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// unsigned long ip;
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// unsigned long bp;
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// unsigned long sp;
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// unsigned long stack[BACKTRACE_DEPTH];
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// } user_stack_detail;
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typedef struct {
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struct pt_regs regs;
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unsigned long ip;
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unsigned long bp;
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unsigned long sp;
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unsigned long stack_size;
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unsigned long stack[DIAG_USER_STACK_SIZE / sizeof(unsigned long)];
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} raw_stack_detail;
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typedef struct {
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unsigned int full_argv[PROCESS_CHAINS_COUNT]; //
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char chains[PROCESS_CHAINS_COUNT][PROCESS_ARGV_LEN]; // process chains argv
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unsigned int tgid[PROCESS_CHAINS_COUNT]; // process chains tgid
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} proc_chains_detail;
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// most important struct
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typedef struct {
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int et_type;
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unsigned long id;
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unsigned long long tv;
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task_detail task; // brief
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// user_stack_detail user_stack; // user stack
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kern_stack_detail kern_stack; // kernel stack
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proc_chains_detail proc_chains; // process chains argv
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raw_stack_detail raw_stack;
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} variable_monitor_task;
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#define DIAG_VARIANT_BUFFER_HEAD_MAGIC_SEALED 197612031122
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#define DIAG_VARIANT_BUFFER_HEAD_MAGIC_UNSEALED 197612031234
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struct diag_variant_buffer_head {
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unsigned long magic;
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unsigned long len;
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};
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struct diag_ioctl_dump_param {
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int *user_ptr_len;
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size_t user_buf_len;
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void *user_buf;
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};
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long diag_call_ioctl(unsigned long request, unsigned long arg);
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void extract_variant_buffer(char *buf, unsigned int len,
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int (*func)(void *, unsigned int, void *),
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void *arg);
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extern unsigned long run_in_host;
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int check_in_host(void);
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// all print fun
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void printk_task_brief(task_detail *detail);
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void diag_printf_raw_stack(int pid, int ns_pid, const char *comm,
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raw_stack_detail *raw_stack);
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void diag_printf_kern_stack(kern_stack_detail *kern_stack);
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void diag_printf_proc_chains(proc_chains_detail *proc_chains);
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std::string state_str(int __state);
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#endif /* UAPI_H */ |