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|
# mq_open ____________________________________________________
# long sys_mq_open(const char __user *u_name,
# int oflag,
# mode_t mode,
# struct mq_attr __user *u_attr)
# long compat_sys_mq_open(const char __user *u_name,
# int oflag, compat_mode_t mode,
# struct compat_mq_attr __user *u_attr)
#
@define _SYSCALL_MQ_OPEN_NAME
%(
name = "mq_open"
%)
@define _SYSCALL_MQ_OPEN_ARGSTR
%(
if (oflag & @const("O_CREAT"))
argstr = sprintf("%s, %s, %#o, %p", filename, oflag_str, mode, u_attr_uaddr)
else
argstr = sprintf("%s, %s", filename, oflag_str)
%)
@define _SYSCALL_MQ_OPEN_REGARGS
%(
name_uaddr = pointer_arg(1)
filename = user_string_quoted(name_uaddr)
filename_unquoted = user_string_nofault(pointer_arg(1))
u_attr_uaddr = pointer_arg(4)
oflag = int_arg(2)
oflag_str = _sys_open_flag_str(oflag)
%)
@define _SYSCALL_MQ_OPEN_REGARGS_STORE
%(
if (@probewrite(name_uaddr))
set_pointer_arg(1, name_uaddr)
if (@probewrite(filename_unquoted))
set_user_string_arg(pointer_arg(1), filename_unquoted)
if (@probewrite(oflag))
set_int_arg(2, oflag)
if (@probewrite(mode))
set_uint_arg(3, mode)
if (@probewrite(u_attr_uaddr))
set_pointer_arg(4, u_attr_uaddr)
%)
probe syscall.mq_open = dw_syscall.mq_open !, nd_syscall.mq_open ? {}
probe syscall.mq_open.return = dw_syscall.mq_open.return !, nd_syscall.mq_open.return ? {}
# dw_mq_open _____________________________________________________
probe dw_syscall.mq_open = __syscall.mq_open,
kernel.function("compat_sys_mq_open").call ?
{
@_SYSCALL_MQ_OPEN_NAME
name_uaddr = @__pointer($u_name)
filename = user_string_quoted(name_uaddr)
u_attr_uaddr = @__pointer($u_attr)
oflag = __int32($oflag)
oflag_str = _sys_open_flag_str(oflag)
mode = (@__compat_task ? __ushort($mode) : __uint32($mode))
@_SYSCALL_MQ_OPEN_ARGSTR
}
probe __syscall.mq_open = kernel.function("sys_mq_open").call
{
@__syscall_gate_compat_simple
}
probe dw_syscall.mq_open.return =
__syscall.mq_open.return,
kernel.function("compat_sys_mq_open").return ?
{
@_SYSCALL_MQ_OPEN_NAME
@SYSC_RETVALSTR($return)
}
probe __syscall.mq_open.return = kernel.function("sys_mq_open").return
{
@__syscall_gate(@const("__NR_mq_open"))
}
# nd_mq_open _____________________________________________________
probe nd_syscall.mq_open = nd1_syscall.mq_open!, nd2_syscall.mq_open!, tp_syscall.mq_open
{ }
probe nd1_syscall.mq_open = __nd1_syscall.mq_open,
__nd1_syscall.compat_mq_open ?
{
asmlinkage()
@_SYSCALL_MQ_OPEN_NAME
@_SYSCALL_MQ_OPEN_REGARGS
@_SYSCALL_MQ_OPEN_ARGSTR
}
probe __nd1_syscall.mq_open = kprobe.function("sys_mq_open")
{
asmlinkage()
@__syscall_gate(@const("__NR_mq_open"))
%( CONFIG_64BIT == "y" %?
mode = uint_arg(3)
%:
mode = (uint_arg(3) & 0xffff)
%)
}
probe __nd1_syscall.compat_mq_open = kprobe.function("compat_sys_mq_open")
{
asmlinkage()
mode = (uint_arg(3) & 0xffff)
}
/* kernel 4.17+ */
probe nd2_syscall.mq_open = __nd2_syscall.mq_open,
__nd2_syscall.compat_mq_open ?
{
@_SYSCALL_MQ_OPEN_NAME
@_SYSCALL_MQ_OPEN_REGARGS
@_SYSCALL_MQ_OPEN_ARGSTR
}
probe __nd2_syscall.mq_open = kprobe.function(@arch_syscall_prefix "sys_mq_open")
{
__set_syscall_pt_regs(pointer_arg(1))
mode = uint_arg(3)
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_MQ_OPEN_REGARGS_STORE %)
}
probe __nd2_syscall.compat_mq_open = kprobe.function(@arch_syscall_prefix "compat_sys_mq_open")
{
__set_syscall_pt_regs(pointer_arg(1))
mode = (uint_arg(3) & 0xffff)
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_MQ_OPEN_REGARGS_STORE %)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.mq_open = __tp_syscall.mq_open,
__tp_syscall.compat_mq_open ?
{
@_SYSCALL_MQ_OPEN_NAME
@_SYSCALL_MQ_OPEN_REGARGS
@_SYSCALL_MQ_OPEN_ARGSTR
}
probe __tp_syscall.mq_open = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_gate(@const("__NR_mq_open"))
mode = uint_arg(3)
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_MQ_OPEN_REGARGS_STORE %)
}
probe __tp_syscall.compat_mq_open = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__compat_syscall_gate(@const("__NR_compat_mq_open"))
mode = (uint_arg(3) & 0xffff)
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_MQ_OPEN_REGARGS_STORE %)
}
probe nd_syscall.mq_open.return = nd1_syscall.mq_open.return!, nd2_syscall.mq_open.return!, tp_syscall.mq_open.return
{ }
probe nd1_syscall.mq_open.return =
__nd1_syscall.mq_open.return ?,
kprobe.function("compat_sys_mq_open").return ?
{
@_SYSCALL_MQ_OPEN_NAME
@SYSC_RETVALSTR(returnval())
}
probe __nd1_syscall.mq_open.return = kprobe.function("sys_mq_open").return
{
@__syscall_gate(@const("__NR_mq_open"))
}
/* kernel 4.17+ */
probe nd2_syscall.mq_open.return =
kprobe.function(@arch_syscall_prefix "sys_mq_open").return ?,
kprobe.function(@arch_syscall_prefix "compat_sys_mq_open").return ?
{
@_SYSCALL_MQ_OPEN_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.mq_open.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_mq_open"), @const("__NR_compat_mq_open"))
@_SYSCALL_MQ_OPEN_NAME
@SYSC_RETVALSTR($ret)
}
|
