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# quotactl ___________________________________________________
#
# long sys_quotactl(unsigned int cmd,
# const char __user *special,
# qid_t id,
# void __user *addr)
# asmlinkage long sys32_quotactl(unsigned int cmd, const char __user *special,
# qid_t id, void __user *addr)
#
@define _SYSCALL_QUOTACTL_NAME
%(
name = "quotactl"
%)
@define _SYSCALL_QUOTACTL_REGARGS
%(
cmd = uint_arg(1)
cmd_str = _quotactl_cmd_str(cmd)
special = pointer_arg(2)
special_str = user_string_quoted(special)
id = int_arg(3)
addr_uaddr = pointer_arg(4)
%)
probe syscall.quotactl = dw_syscall.quotactl !, nd_syscall.quotactl ? {}
probe syscall.quotactl.return = dw_syscall.quotactl.return !,
nd_syscall.quotactl.return ? {}
# dw_quotactl _____________________________________________________
probe dw_syscall.quotactl = __syscall.quotactl ?,
kernel.function("sys32_quotactl").call ?
{
@_SYSCALL_QUOTACTL_NAME
cmd = __uint32($cmd)
cmd_str = _quotactl_cmd_str(__uint32($cmd))
special = $special
special_str = user_string_quoted($special)
id = __int32($id)
addr_uaddr = $addr
@__quotactl_argstr(_quotactl_subcmd(cmd), cmd, special, id, addr_uaddr)
}
probe __syscall.quotactl = kernel.function("sys_quotactl").call ?
{
# sys32_quotactl() was introduced in 2.6.23.
%( arch != "powerpc" && arch != "s390" && kernel_v >= "2.6.23" %?
@__syscall_gate_compat_simple
%)
}
probe dw_syscall.quotactl.return = __syscall.quotactl.return ?,
kernel.function("sys32_quotactl").return ?
{
@_SYSCALL_QUOTACTL_NAME
@SYSC_RETVALSTR($return)
}
probe __syscall.quotactl.return = kernel.function("sys_quotactl").return ?
{
%( arch != "powerpc" && arch != "s390" && kernel_v >= "2.6.23" %?
@__syscall_gate_compat_simple
%)
}
# nd_quotactl _____________________________________________________
probe nd_syscall.quotactl = nd1_syscall.quotactl!, nd2_syscall.quotactl!, tp_syscall.quotactl
{ }
probe nd1_syscall.quotactl = __nd1_syscall.quotactl ?,
kprobe.function("sys32_quotactl") ?
{
@_SYSCALL_QUOTACTL_NAME
asmlinkage()
@_SYSCALL_QUOTACTL_REGARGS
@__quotactl_argstr(_quotactl_subcmd(cmd), cmd, special, id, addr_uaddr)
}
probe __nd1_syscall.quotactl = kprobe.function("sys_quotactl") ?
{
# sys32_quotactl() was introduced in 2.6.23.
%( arch != "powerpc" && arch != "s390" && kernel_v >= "2.6.23" %?
@__syscall_gate_compat_simple
%)
}
/* kernel 4.17+ */
probe nd2_syscall.quotactl = kprobe.function(@arch_syscall_prefix "sys_quotactl") ?,
kprobe.function(@arch_syscall_prefix "compat_sys_quotactl32") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_QUOTACTL_NAME
@_SYSCALL_QUOTACTL_REGARGS
@__quotactl_argstr(_quotactl_subcmd(cmd), cmd, special, id, addr_uaddr)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.quotactl = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_quotactl"), @const("__NR_compat_quotactl"))
@_SYSCALL_QUOTACTL_NAME
@_SYSCALL_QUOTACTL_REGARGS
@__quotactl_argstr(_quotactl_subcmd(cmd), cmd, special, id, addr_uaddr)
}
probe nd_syscall.quotactl.return = nd1_syscall.quotactl.return!, nd2_syscall.quotactl.return!, tp_syscall.quotactl.return
{ }
probe nd1_syscall.quotactl.return = __nd1_syscall.quotactl.return ?,
kprobe.function("sys32_quotactl").return ?
{
@_SYSCALL_QUOTACTL_NAME
@SYSC_RETVALSTR(returnval())
}
probe __nd1_syscall.quotactl.return = kprobe.function("sys_quotactl").return ?
{
%( arch != "powerpc" && arch != "s390" && kernel_v >= "2.6.23" %?
@__syscall_gate_compat_simple
%)
}
/* kernel 4.17+ */
probe nd2_syscall.quotactl.return = kprobe.function(@arch_syscall_prefix "sys_quotactl").return ?,
kprobe.function(@arch_syscall_prefix "compat_sys_quotactl32").return ?
{
@_SYSCALL_QUOTACTL_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.quotactl.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_quotactl"), @const("__NR_compat_quotactl"))
@_SYSCALL_QUOTACTL_NAME
@SYSC_RETVALSTR($ret)
}
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