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# migrate_pages ____________________________________________________
# long sys_migrate_pages(pid_t pid, unsigned long maxnode,
# const unsigned long __user *old_nodes,
# const unsigned long __user *new_nodes)
@define _SYSCALL_MIGRATE_PAGES_NAME
%(
name = "migrate_pages"
%)
@define _SYSCALL_MIGRATE_PAGES_ARGSTR
%(
argstr = sprintf("%d, %u, %p, %p", pid, maxnode, old_nodes, new_nodes)
%)
@define _SYSCALL_MIGRATE_PAGES_REGARGS
%(
pid = int_arg(1)
maxnode = ulong_arg(2)
old_nodes = pointer_arg(3)
new_nodes = pointer_arg(4)
%)
@define _SYSCALL_MIGRATE_PAGES_REGARGS_STORE
%(
if (@probewrite(pid))
set_int_arg(1, pid)
if (@probewrite(maxnode))
set_ulong_arg(2, maxnode)
if (@probewrite(old_nodes))
set_pointer_arg(3, old_nodes)
if (@probewrite(new_nodes))
set_pointer_arg(4, new_nodes)
%)
probe syscall.migrate_pages = dw_syscall.migrate_pages !,
nd_syscall.migrate_pages ? {}
probe syscall.migrate_pages.return = dw_syscall.migrate_pages.return !,
nd_syscall.migrate_pages.return ? {}
# dw_migrate_pages _____________________________________________________
probe dw_syscall.migrate_pages = __syscall.migrate_pages ?,
kernel.function("compat_sys_migrate_pages").call ?
{
@_SYSCALL_MIGRATE_PAGES_NAME
pid = __int32($pid)
old_nodes = $old_nodes
new_nodes = $new_nodes
maxnode = @__compat_ulong($maxnode)
@_SYSCALL_MIGRATE_PAGES_ARGSTR
}
probe __syscall.migrate_pages = kernel.function("sys_migrate_pages").call
{
%( arch == "powerpc" %?
@__syscall_gate_compat_simple
%)
}
probe dw_syscall.migrate_pages.return = __syscall.migrate_pages.return ?,
kernel.function("compat_sys_migrate_pages").return ?
{
@_SYSCALL_MIGRATE_PAGES_NAME
@SYSC_RETVALSTR($return)
}
probe __syscall.migrate_pages.return = kernel.function("sys_migrate_pages").return
{
%( arch == "powerpc" %?
@__syscall_gate_compat_simple
%)
}
# nd_migrate_pages _____________________________________________________
probe nd_syscall.migrate_pages = nd1_syscall.migrate_pages!, nd2_syscall.migrate_pages!, tp_syscall.migrate_pages
{ }
probe nd1_syscall.migrate_pages = __nd1_syscall.migrate_pages ?,
kprobe.function("compat_sys_migrate_pages") ?
{
@_SYSCALL_MIGRATE_PAGES_NAME
asmlinkage()
@_SYSCALL_MIGRATE_PAGES_REGARGS
@_SYSCALL_MIGRATE_PAGES_ARGSTR
}
probe __nd1_syscall.migrate_pages = kprobe.function("sys_migrate_pages")
{
%( arch == "powerpc" %?
@__syscall_gate_compat_simple
%)
}
/* kernel 4.17+ */
probe nd2_syscall.migrate_pages = kprobe.function(@arch_syscall_prefix "sys_migrate_pages") ?
{
__set_syscall_pt_regs(pointer_arg(1))
@_SYSCALL_MIGRATE_PAGES_NAME
@_SYSCALL_MIGRATE_PAGES_REGARGS
@_SYSCALL_MIGRATE_PAGES_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_MIGRATE_PAGES_REGARGS_STORE %)
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.migrate_pages = kernel.trace("sys_enter")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_migrate_pages"), @const("__NR_compat_migrate_pages"))
@_SYSCALL_MIGRATE_PAGES_NAME
@_SYSCALL_MIGRATE_PAGES_REGARGS
@_SYSCALL_MIGRATE_PAGES_ARGSTR
},
{
%( @_IS_SREG_KERNEL %? @_SYSCALL_MIGRATE_PAGES_REGARGS_STORE %)
}
probe nd_syscall.migrate_pages.return = nd1_syscall.migrate_pages.return!, nd2_syscall.migrate_pages.return!, tp_syscall.migrate_pages.return
{ }
probe nd1_syscall.migrate_pages.return = __nd1_syscall.migrate_pages.return ?,
kprobe.function("compat_sys_migrate_pages").return ?
{
@_SYSCALL_MIGRATE_PAGES_NAME
@SYSC_RETVALSTR(returnval())
}
probe __nd1_syscall.migrate_pages.return = kprobe.function("sys_migrate_pages").return
{
%( arch == "powerpc" %?
@__syscall_gate_compat_simple
%)
}
/* kernel 4.17+ */
probe nd2_syscall.migrate_pages.return = kprobe.function(@arch_syscall_prefix "sys_migrate_pages").return ?
{
@_SYSCALL_MIGRATE_PAGES_NAME
@SYSC_RETVALSTR(returnval())
}
/* kernel 3.5+, but undesirable because it affects all syscalls */
probe tp_syscall.migrate_pages.return = kernel.trace("sys_exit")
{
__set_syscall_pt_regs($regs)
@__syscall_compat_gate(@const("__NR_migrate_pages"), @const("__NR_compat_migrate_pages"))
@_SYSCALL_MIGRATE_PAGES_NAME
@SYSC_RETVALSTR($ret)
}
|
