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kernel: refactor PR_REAL_REGS

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weishu
2024-04-26 13:25:10 +08:00
parent 2e1bb8e303
commit f982683825
4 changed files with 12 additions and 30 deletions
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12
kernel/ksud.c
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@@ -474,11 +474,7 @@ static int execve_handler_pre(struct kprobe *p, struct pt_regs *regs)
static int sys_execve_handler_pre(struct kprobe *p, struct pt_regs *regs)
{
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 16, 0)
struct pt_regs *real_regs = (struct pt_regs *)PT_REGS_PARM1(regs);
#else
struct pt_regs *real_regs = regs;
#endif
struct pt_regs *real_regs = PT_REAL_REGS(regs);
const char __user **filename_user = (const char **)&PT_REGS_PARM1(real_regs);
const char __user *const __user *__argv =
(const char __user *const __user *)PT_REGS_PARM2(real_regs);
@@ -511,11 +507,7 @@ __maybe_unused static int vfs_read_handler_pre(struct kprobe *p, struct pt_regs
static int sys_read_handler_pre(struct kprobe *p, struct pt_regs *regs)
{
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 16, 0)
struct pt_regs *real_regs = (struct pt_regs *)PT_REGS_PARM1(regs);
#else
struct pt_regs *real_regs = regs;
#endif
struct pt_regs *real_regs = PT_REAL_REGS(regs);
unsigned int fd = PT_REGS_PARM1(real_regs);
char __user **buf_ptr = (char __user **)&PT_REGS_PARM2(real_regs);
size_t count_ptr = (size_t *) &PT_REGS_PARM3(real_regs);