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# fstatfs64 __________________________________________________
# long sys_fstatfs64(unsigned int fd, size_t sz, struct statfs64 __user *buf)
# long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz, struct compat_statfs64 __user *buf)
#
@define _SYSCALL_FSTATFS64_NAME
%(
name = "fstatfs64"
%)
@define _SYSCALL_FSTATFS64_ARGSTR
%(
argstr = sprintf("%d, %u, %p", fd, sz, buf_uaddr)
%)
@define _SYSCALL_FSTATFS64_REGARGS
%(
fd = int_arg(1)
sz = ulong_arg(2)
buf_uaddr = pointer_arg(3)
%)
@define _SYSCALL_FSTATFS64_REGARGS_STORE
%(
if (@probewrite(fd))
set_int_arg(1, fd)
if (@probewrite(sz))
set_ulong_arg(2, sz)
if (@probewrite(buf_uaddr))
set_pointer_arg(3, buf_uaddr)
%)
probe syscall.fstatfs64 = dw_syscall.fstatfs64 !, nd_syscall.fstatfs64 ? {}
probe syscall.fstatfs64.return = dw_syscall.fstatfs64.return !, nd_syscall.fstatfs64.return ? {}
# dw_fstatfs64 _____________________________________________________
probe dw_syscall.fstatfs64 = kernel.function("sys_fstatfs64").call ?,
kernel.function("compat_sys_fstatfs64").call ?
{
@_SYSCALL_FSTATFS64_NAME
fd = __int32($fd)
sz = __ulong($sz)
buf_uaddr = @__pointer($buf)
@_SYSCALL_FSTATFS64_ARGSTR
}
probe dw_syscall.fstatfs64.return = kernel.function("sys_fstatfs64").return ?,
kernel.function("compat_sys_fstatfs64").return ?
{
@_SYSCALL_FSTATFS64_NAME
@SYSC_RETVALSTR($return)
}
# nd_fstatfs64 _____________________________________________________
probe nd_syscall.fstatfs64 = nd1_syscall.fstatfs64!, nd2_syscall.fstatfs64!, tp_syscall.fstatfs64
{ }
probe nd1_syscall.fstatfs64 = kprobe.function("sys_fstatfs64") ?,
kprobe.function("compat_sys_fstatfs64") ?
{
@_SYSCALL_FSTATFS64_NAME
asmlinkage()
@_SYSCALL_FSTATFS64_REGARGS
@_SYSCALL_FSTATFS64_ARGSTR
}
/* kernel 4.17+ */
probe nd2_syscall.fstatfs64 =
kprobe.function(@arch_syscall_prefix "compat_sys_fstatfs64") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_FSTATFS64_NAME
@_SYSCALL_FSTATFS64_REGARGS
@_SYSCALL_FSTATFS64_ARGSTR
},
{
@_SYSCALL_FSTATFS64_REGARGS_STORE
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.fstatfs64 = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_fstatfs64"), @const("__NR_compat_fstatfs64"))
@_SYSCALL_FSTATFS64_NAME
@_SYSCALL_FSTATFS64_REGARGS
@_SYSCALL_FSTATFS64_ARGSTR
},
{
@_SYSCALL_FSTATFS64_REGARGS_STORE
}
probe nd_syscall.fstatfs64.return = nd1_syscall.fstatfs64.return!, nd2_syscall.fstatfs64.return!, tp_syscall.fstatfs64.return
{ }
probe nd1_syscall.fstatfs64.return =
kprobe.function("sys_fstatfs64").return ?,
kprobe.function("compat_sys_fstatfs64").return ?
{
@_SYSCALL_FSTATFS64_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 4.17+ */
probe nd2_syscall.fstatfs64.return =
kprobe.function(@arch_syscall_prefix "compat_sys_fstatfs64").return ?
{
@_SYSCALL_FSTATFS64_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.fstatfs64.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_fstatfs64"), @const("__NR_compat_fstatfs64"))
@_SYSCALL_FSTATFS64_NAME
@SYSC_RETVALSTR($ret)
}
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