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|
# msgget _____________________________________________________
# long sys_msgget (key_t key, int msgflg)
#
@define _SYSCALL_MSGGET_NAME
%(
name = "msgget"
%)
@define _SYSCALL_MSGGET_ARGSTR
%(
argstr = sprintf("%s, %s", key_str, msgflg_str)
%)
@define _SYSCALL_MSGGET_REGARGS
%(
key = int_arg(1)
key_str = _stp_msgget_key_str(key)
msgflg = int_arg(2)
msgflg_str = __sem_flags(msgflg)
%)
@define _SYSCALL_MSGGET_REGARGS_STORE
%(
if (@probewrite(key))
set_int_arg(1, key)
if (@probewrite(msgflg))
set_int_arg(2, msgflg)
%)
@define _SYSCALL_IPC_MSGGET_REGARGS
%(
key = int_arg(2)
key_str = _stp_msgget_key_str(key)
msgflg = int_arg(3)
msgflg_str = __sem_flags(msgflg)
%)
@define _SYSCALL_IPC_MSGGET_REGARGS_STORE
%(
if (@probewrite(key))
set_int_arg(2, key)
if (@probewrite(msgflg))
set_int_arg(3, msgflg)
%)
probe syscall.msgget = dw_syscall.msgget !, nd_syscall.msgget ? {}
probe syscall.msgget.return = dw_syscall.msgget.return !, nd_syscall.msgget.return ? {}
# dw_msgget _____________________________________________________
probe dw_syscall.msgget = kernel.function("sys_msgget").call ?
{
@_SYSCALL_MSGGET_NAME
key = __int32($key)
key_str = _stp_msgget_key_str(__int32($key))
msgflg = __int32($msgflg)
msgflg_str = __sem_flags(__int32($msgflg))
@_SYSCALL_MSGGET_ARGSTR
}
probe dw_syscall.msgget.return = kernel.function("sys_msgget").return ?
{
@_SYSCALL_MSGGET_NAME
@SYSC_RETVALSTR($return)
}
# nd_msgget _____________________________________________________
probe nd_syscall.msgget = nd1_syscall.msgget!, nd2_syscall.msgget!, tp_syscall.msgget
{ }
probe nd1_syscall.msgget = kprobe.function("sys_msgget") ?
{
@_SYSCALL_MSGGET_NAME
asmlinkage()
@_SYSCALL_MSGGET_REGARGS
@_SYSCALL_MSGGET_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.msgget = __nd2_syscall.msgget ?,
__nd2_syscall.compat_ipc.msgget ?
{
@_SYSCALL_MSGGET_NAME
@_SYSCALL_MSGGET_ARGSTR
}
probe __nd2_syscall.msgget = kprobe.function(@arch_syscall_prefix "sys_msgget") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_MSGGET_REGARGS
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_MSGGET_REGARGS_STORE %)
}
probe __nd2_syscall.compat_ipc.msgget =
kprobe.function(@arch_syscall_prefix "compat_sys_ipc") ?
{
__set_syscall_pt_regs(pointer_arg(1))
if ((uint_arg(1) & 0xffff) != @const("MSGGET")) next;
@_SYSCALL_IPC_MSGGET_REGARGS
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_IPC_MSGGET_REGARGS_STORE %)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.msgget = __tp_syscall.msgget, __tp_syscall.ipc.msgget
{
@_SYSCALL_MSGGET_NAME
@_SYSCALL_MSGGET_ARGSTR
}
probe __tp_syscall.msgget = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_gate(@const("__NR_msgget"))
@_SYSCALL_MSGGET_REGARGS
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_MSGGET_REGARGS_STORE %)
}
probe __tp_syscall.ipc.msgget = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_ipc"), @const("__NR_compat_ipc"))
if ((uint_arg(1) & 0xffff) != @const("MSGGET")) next;
@_SYSCALL_IPC_MSGGET_REGARGS
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_IPC_MSGGET_REGARGS_STORE %)
}
probe nd_syscall.msgget.return = nd1_syscall.msgget.return!, nd2_syscall.msgget.return!, tp_syscall.msgget.return
{ }
probe nd1_syscall.msgget.return = kprobe.function("sys_msgget").return ?
{
@_SYSCALL_MSGGET_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.msgget.return =
__nd2_syscall.compat_ipc.msgget.return ?,
kprobe.function(@arch_syscall_prefix "sys_msgget").return ?
{
@_SYSCALL_MSGGET_NAME
@SYSC_RETVALSTR(returnval())
}
probe __nd2_syscall.compat_ipc.msgget.return =
kprobe.function(@arch_syscall_prefix "compat_sys_ipc").return ?
{
__set_syscall_pt_regs(@entry(pointer_arg(1)))
if ((uint_arg(1) & 0xffff) != @const("MSGGET")) next;
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.msgget.return = __tp_syscall.msgget.return, __tp_syscall.ipc.msgget.return
{
@_SYSCALL_MSGGET_NAME
@SYSC_RETVALSTR($ret)
}
probe __tp_syscall.msgget.return = kernel.trace("sys_exit")
{
@__syscall_gate(@const("__NR_msgget"))
}
probe __tp_syscall.ipc.msgget.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_ipc"), @const("__NR_compat_ipc"))
if ((uint_arg(1) & 0xffff) != @const("MSGGET")) next;
}
|
