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/*
* Copyright (c) 2004 Ulrich Drepper <drepper@redhat.com>
* Copyright (c) 2004-2016 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2015-2021 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "defs.h"
#include DEF_MPERS_TYPE(struct_rtc_pll_info)
#include <linux/ioctl.h>
#include <linux/rtc.h>
typedef struct rtc_pll_info struct_rtc_pll_info;
#include MPERS_DEFS
typedef struct {
uint64_t param;
union {
uint64_t uvalue;
int64_t svalue;
uint64_t ptr;
};
uint32_t index;
uint32_t __pad;
} struct_rtc_param;
#define XLAT_MACROS_ONLY
# include "xlat/rtc_ioctl_cmds.h"
# include "xlat/rtc_feature_bits.h"
#undef XLAT_MACROS_ONLY
#include "xlat/rtc_vl_flags.h"
#include "xlat/rtc_params.h"
#include "xlat/rtc_features.h"
#include "xlat/rtc_backup_switch_modes.h"
static void
print_rtc_time(struct tcb *tcp, const struct rtc_time *rt)
{
tprint_struct_begin();
PRINT_FIELD_D(*rt, tm_sec);
tprint_struct_next();
PRINT_FIELD_D(*rt, tm_min);
tprint_struct_next();
PRINT_FIELD_D(*rt, tm_hour);
tprint_struct_next();
PRINT_FIELD_D(*rt, tm_mday);
tprint_struct_next();
PRINT_FIELD_D(*rt, tm_mon);
tprint_struct_next();
PRINT_FIELD_D(*rt, tm_year);
if (abbrev(tcp)) {
tprint_struct_next();
tprint_more_data_follows();
} else {
tprint_struct_next();
PRINT_FIELD_D(*rt, tm_wday);
tprint_struct_next();
PRINT_FIELD_D(*rt, tm_yday);
tprint_struct_next();
PRINT_FIELD_D(*rt, tm_isdst);
}
tprint_struct_end();
}
static void
decode_rtc_time(struct tcb *const tcp, const kernel_ulong_t addr)
{
struct rtc_time rt;
if (!umove_or_printaddr(tcp, addr, &rt))
print_rtc_time(tcp, &rt);
}
static void
decode_rtc_wkalrm(struct tcb *const tcp, const kernel_ulong_t addr)
{
struct rtc_wkalrm wk;
if (umove_or_printaddr(tcp, addr, &wk))
return;
tprint_struct_begin();
PRINT_FIELD_U(wk, enabled);
tprint_struct_next();
PRINT_FIELD_U(wk, pending);
tprint_struct_next();
PRINT_FIELD_OBJ_TCB_PTR(wk, time, tcp, print_rtc_time);
tprint_struct_end();
}
static void
decode_rtc_pll_info(struct tcb *const tcp, const kernel_ulong_t addr)
{
struct_rtc_pll_info pll;
if (umove_or_printaddr(tcp, addr, &pll))
return;
tprint_struct_begin();
PRINT_FIELD_D(pll, pll_ctrl);
tprint_struct_next();
PRINT_FIELD_D(pll, pll_value);
tprint_struct_next();
PRINT_FIELD_D(pll, pll_max);
tprint_struct_next();
PRINT_FIELD_D(pll, pll_min);
tprint_struct_next();
PRINT_FIELD_D(pll, pll_posmult);
tprint_struct_next();
PRINT_FIELD_D(pll, pll_negmult);
tprint_struct_next();
PRINT_FIELD_D(pll, pll_clock);
tprint_struct_end();
}
static void
decode_rtc_vl(struct tcb *const tcp, const kernel_ulong_t addr)
{
unsigned int val;
if (umove_or_printaddr(tcp, addr, &val))
return;
tprint_indirect_begin();
printflags(rtc_vl_flags, val, "RTC_VL_???");
tprint_indirect_end();
}
static long
decode_rtc_param(struct tcb *const tcp, const kernel_ulong_t addr, const bool get)
{
struct_rtc_param param;
if (umove_or_printaddr(tcp, addr, ¶m))
return RVAL_IOCTL_DECODED;
tprint_struct_begin();
if (entering(tcp))
PRINT_FIELD_XVAL(param, param, rtc_params, "RTC_PARAM_???");
if (entering(tcp) ^ get) {
if (entering(tcp))
tprint_struct_next();
switch (param.param) {
case RTC_PARAM_FEATURES:
PRINT_FIELD_FLAGS(param, uvalue, rtc_features,
"1<<RTC_FEATURE_???");
break;
case RTC_PARAM_CORRECTION:
PRINT_FIELD_D(param, svalue);
break;
case RTC_PARAM_BACKUP_SWITCH_MODE:
PRINT_FIELD_XVAL(param, uvalue, rtc_backup_switch_modes,
"RTC_BSM_???");
break;
default:
PRINT_FIELD_X(param, uvalue);
}
}
if (entering(tcp)) {
tprint_struct_next();
PRINT_FIELD_U(param, index);
}
if (param.__pad) {
tprint_struct_next();
PRINT_FIELD_X(param, __pad);
}
tprint_struct_end();
return entering(tcp) && get ? 0 : RVAL_IOCTL_DECODED;
}
MPERS_PRINTER_DECL(int, rtc_ioctl, struct tcb *const tcp,
const unsigned int code, const kernel_ulong_t arg)
{
switch (code) {
case RTC_ALM_READ:
case RTC_RD_TIME:
if (entering(tcp))
return 0;
ATTRIBUTE_FALLTHROUGH;
case RTC_ALM_SET:
case RTC_SET_TIME:
tprint_arg_next();
decode_rtc_time(tcp, arg);
break;
case RTC_IRQP_SET:
case RTC_EPOCH_SET:
tprint_arg_next();
PRINT_VAL_U(arg);
break;
case RTC_IRQP_READ:
case RTC_EPOCH_READ:
if (entering(tcp))
return 0;
tprint_arg_next();
printnum_ulong(tcp, arg);
break;
case RTC_WKALM_RD:
if (entering(tcp))
return 0;
ATTRIBUTE_FALLTHROUGH;
case RTC_WKALM_SET:
tprint_arg_next();
decode_rtc_wkalrm(tcp, arg);
break;
case RTC_PLL_GET:
if (entering(tcp))
return 0;
ATTRIBUTE_FALLTHROUGH;
case RTC_PLL_SET:
tprint_arg_next();
decode_rtc_pll_info(tcp, arg);
break;
case RTC_VL_READ:
if (entering(tcp))
return 0;
tprint_arg_next();
decode_rtc_vl(tcp, arg);
break;
case RTC_PARAM_GET:
case RTC_PARAM_SET:
if (entering(tcp))
tprint_arg_next();
else
tprint_value_changed();
return decode_rtc_param(tcp, arg, code == RTC_PARAM_GET);
case RTC_AIE_ON:
case RTC_AIE_OFF:
case RTC_UIE_ON:
case RTC_UIE_OFF:
case RTC_PIE_ON:
case RTC_PIE_OFF:
case RTC_WIE_ON:
case RTC_WIE_OFF:
case RTC_VL_CLR:
/* no args */
break;
default:
return RVAL_DECODED;
}
return RVAL_IOCTL_DECODED;
}
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