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# delete_module ______________________________________________
# long sys_delete_module(const char __user *name_user, unsigned int flags)
@define _SYSCALL_DELETE_MODULE_NAME
%(
name = "delete_module"
%)
@define _SYSCALL_DELETE_MODULE_ARGSTR
%(
argstr = sprintf("%s, %s", name_user, _module_flags_str(flags))
%)
@define _SYSCALL_DELETE_MODULE_REGARGS
%(
name_user = user_string_quoted(pointer_arg(1))
flags = uint_arg(2)
flags_str = _module_flags_str(flags)
%)
probe syscall.delete_module = dw_syscall.delete_module !, nd_syscall.delete_module ? {}
probe syscall.delete_module.return = dw_syscall.delete_module.return !, nd_syscall.delete_module.return ? {}
# dw_delete_module _____________________________________________________
probe dw_syscall.delete_module = kernel.function("sys_delete_module").call ?
{
@_SYSCALL_DELETE_MODULE_NAME
name_user = user_string_quoted($name_user)
flags = __uint32($flags)
flags_str = _module_flags_str(__uint32($flags))
@_SYSCALL_DELETE_MODULE_ARGSTR
}
probe dw_syscall.delete_module.return =
kernel.function("sys_delete_module").return ?
{
@_SYSCALL_DELETE_MODULE_NAME
@SYSC_RETVALSTR($return)
}
# nd_delete_module _____________________________________________________
probe nd_syscall.delete_module = nd1_syscall.delete_module!, nd2_syscall.delete_module!, tp_syscall.delete_module
{ }
probe nd1_syscall.delete_module = kprobe.function("sys_delete_module") ?
{
@_SYSCALL_DELETE_MODULE_NAME
asmlinkage()
@_SYSCALL_DELETE_MODULE_REGARGS
@_SYSCALL_DELETE_MODULE_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.delete_module = kprobe.function(@arch_syscall_prefix "sys_delete_module") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_DELETE_MODULE_NAME
@_SYSCALL_DELETE_MODULE_REGARGS
@_SYSCALL_DELETE_MODULE_ARGSTR
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.delete_module = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_delete_module"), @const("__NR_compat_delete_module"))
@_SYSCALL_DELETE_MODULE_NAME
@_SYSCALL_DELETE_MODULE_REGARGS
@_SYSCALL_DELETE_MODULE_ARGSTR
}
probe nd_syscall.delete_module.return = nd1_syscall.delete_module.return!, nd2_syscall.delete_module.return!, tp_syscall.delete_module.return
{ }
probe nd1_syscall.delete_module.return =
kprobe.function("sys_delete_module").return ?
{
@_SYSCALL_DELETE_MODULE_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.delete_module.return = kprobe.function(@arch_syscall_prefix "sys_delete_module").return ?
{
@_SYSCALL_DELETE_MODULE_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.delete_module.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_delete_module"), @const("__NR_compat_delete_module"))
@_SYSCALL_DELETE_MODULE_NAME
@SYSC_RETVALSTR($ret)
}
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