2200bbb0 |
1 | #include <linux/module.h> |
2 | #include <linux/kernel.h> |
3 | #include <linux/init.h> |
4 | #include <linux/kprobes.h> |
5 | |
6 | MODULE_LICENSE("GPL"); |
7 | |
8 | static int kph(struct kprobe *kp, struct pt_regs *regs) |
9 | { |
10 | return 0; |
11 | } |
12 | static int kpfh(struct kprobe *kp, struct pt_regs *regs, int nr) |
13 | { |
14 | printk("fault occurred on kprobes at %p(@%lx:%d)\n", kp->addr, regs->ip, nr); |
15 | return 0; |
16 | } |
17 | static struct kprobe kp[] = { |
18 | [0]={.pre_handler=kph, .fault_handler=kpfh, .symbol_name="sys_accept"}, |
19 | [1]={.pre_handler=kph, .fault_handler=kpfh, .symbol_name="sys_access"}, |
20 | [2]={.pre_handler=kph, .fault_handler=kpfh, .symbol_name="sys_acct"}, |
21 | [3]={.pre_handler=kph, .fault_handler=kpfh, .symbol_name="sys_add_key"}, |
22 | [4]={.pre_handler=kph, .fault_handler=kpfh, .symbol_name="sys_adjtimex"}, |
23 | [5]={.pre_handler=kph, .fault_handler=kpfh, .symbol_name="sys_alarm"}, |
24 | [6]={.pre_handler=kph, .fault_handler=kpfh, .symbol_name="sys_bdflush"}, |
25 | }; |
26 | #define NRPB 7 |
27 | |
28 | static struct kprobe *kps[NRPB]; |
29 | |
30 | int __gen_init(void) |
31 | { |
32 | int ret, i; |
33 | for (i=0;i<NRPB;i++) |
34 | kps[i]=&kp[i]; |
35 | printk("registering..."); |
36 | ret = register_kprobes(kps, NRPB); |
37 | if (ret) { |
38 | printk("failed to register kprobes\n"); |
39 | return ret; |
40 | } |
41 | printk("registered\n"); |
42 | return 0; |
43 | } |
44 | |
45 | void __gen_exit(void) |
46 | { |
47 | printk("unregistering..."); |
48 | unregister_kprobes(kps, NRPB); |
49 | printk("unregistered\n"); |
50 | } |
51 | |
52 | module_init(__gen_init); |
53 | module_exit(__gen_exit); |