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# rename _____________________________________________________
#
# asmlinkage long
# sys_rename(const char __user * oldname,
# const char __user * newname)
#
@define _SYSCALL_RENAME_NAME
%(
name = "rename"
%)
@define _SYSCALL_RENAME_ARGSTR
%(
argstr = sprintf("%s, %s", oldpath, newpath)
%)
@define _SYSCALL_RENAME_REGARGS
%(
oldpath = user_string_quoted(pointer_arg(1))
newpath = user_string_quoted(pointer_arg(2))
%)
probe syscall.rename = dw_syscall.rename !, nd_syscall.rename ? {}
probe syscall.rename.return = dw_syscall.rename.return !,
nd_syscall.rename.return ? {}
# dw_rename _____________________________________________________
probe dw_syscall.rename = kernel.function("sys_rename").call
{
@_SYSCALL_RENAME_NAME
oldpath = user_string_quoted($oldname)
newpath = user_string_quoted($newname)
@_SYSCALL_RENAME_ARGSTR
}
probe dw_syscall.rename.return = kernel.function("sys_rename").return
{
@_SYSCALL_RENAME_NAME
@SYSC_RETVALSTR($return)
}
# nd_rename _____________________________________________________
probe nd_syscall.rename = nd1_syscall.rename!, nd2_syscall.rename!, tp_syscall.rename
{ }
probe nd1_syscall.rename = kprobe.function("sys_rename") ?
{
@_SYSCALL_RENAME_NAME
asmlinkage()
@_SYSCALL_RENAME_REGARGS
@_SYSCALL_RENAME_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.rename = kprobe.function(@arch_syscall_prefix "sys_rename") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_RENAME_NAME
@_SYSCALL_RENAME_REGARGS
@_SYSCALL_RENAME_ARGSTR
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.rename = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_rename"), @const("__NR_compat_rename"))
@_SYSCALL_RENAME_NAME
@_SYSCALL_RENAME_REGARGS
@_SYSCALL_RENAME_ARGSTR
}
probe nd_syscall.rename.return = nd1_syscall.rename.return!, nd2_syscall.rename.return!, tp_syscall.rename.return
{ }
probe nd1_syscall.rename.return = kprobe.function("sys_rename").return ?
{
@_SYSCALL_RENAME_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.rename.return = kprobe.function(@arch_syscall_prefix "sys_rename").return ?
{
@_SYSCALL_RENAME_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.rename.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_rename"), @const("__NR_compat_rename"))
@_SYSCALL_RENAME_NAME
@SYSC_RETVALSTR($ret)
}
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