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/*
* Copyright (c) 2021 Eugene Syromyatnikov <evgsyr@gmail.com>.
* All rights reserved.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "defs.h"
#include <linux/ioctl.h>
#include <linux/counter.h>
#include "xlat/counter_ioctl_component_types.h"
#include "xlat/counter_ioctl_event_types.h"
#include "xlat/counter_ioctl_scopes.h"
static void
print_struct_counter_component(const struct counter_component *const cc)
{
tprint_struct_begin();
PRINT_FIELD_XVAL(*cc, type, counter_ioctl_component_types,
"COUNTER_COMPONENT_???");
tprint_struct_next();
PRINT_FIELD_XVAL(*cc, scope, counter_ioctl_scopes,
"COUNTER_SCOPE_???");
tprint_struct_next();
PRINT_FIELD_U(*cc, parent);
tprint_struct_next();
PRINT_FIELD_U(*cc, id);
tprint_struct_end();
}
static void
print_struct_counter_watch(struct tcb *const tcp, const kernel_ulong_t addr)
{
CHECK_IOCTL_SIZE(COUNTER_ADD_WATCH_IOCTL, 6);
CHECK_TYPE_SIZE(struct counter_watch, 6);
struct counter_watch w;
if (umove_or_printaddr(tcp, addr, &w))
return;
tprint_struct_begin();
PRINT_FIELD_OBJ_PTR(w, component, print_struct_counter_component);
tprint_struct_next();
PRINT_FIELD_XVAL(w, event, counter_ioctl_event_types,
"COUNTER_EVENT_???");
tprint_struct_next();
PRINT_FIELD_U(w, channel);
tprint_struct_end();
}
int
counter_ioctl(struct tcb *const tcp, const unsigned int code,
const kernel_ulong_t arg)
{
switch (code) {
case COUNTER_ADD_WATCH_IOCTL:
tprint_arg_next();
print_struct_counter_watch(tcp, arg);
return RVAL_IOCTL_DECODED;
case COUNTER_ENABLE_EVENTS_IOCTL:
case COUNTER_DISABLE_EVENTS_IOCTL:
return RVAL_IOCTL_DECODED;
default:
return RVAL_DECODED;
}
}
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