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/*
* Copyright (c) 2012 Mike Frysinger <vapier@gentoo.org>
* Copyright (c) 2012-2021 The strace developers.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "defs.h"
#include <linux/ioctl.h>
#include <mtd/ubi-user.h>
#include "xlat/ubi_volume_types.h"
#include "xlat/ubi_volume_flags.h"
#include "xlat/ubi_volume_props.h"
#include "xlat/ubi_data_types.h"
static int
decode_UBI_IOCMKVOL(struct tcb *const tcp, const kernel_ulong_t arg)
{
struct ubi_mkvol_req mkvol;
if (entering(tcp)) {
tprint_arg_next();
if (umove_or_printaddr(tcp, arg, &mkvol))
return RVAL_IOCTL_DECODED;
tprint_struct_begin();
PRINT_FIELD_D(mkvol, vol_id);
tprint_struct_next();
PRINT_FIELD_D(mkvol, alignment);
tprint_struct_next();
PRINT_FIELD_D(mkvol, bytes);
tprint_struct_next();
PRINT_FIELD_XVAL(mkvol, vol_type,
ubi_volume_types, "UBI_???_VOLUME");
tprint_struct_next();
PRINT_FIELD_FLAGS(mkvol, flags,
ubi_volume_flags, "UBI_VOL_???");
tprint_struct_next();
PRINT_FIELD_D(mkvol, name_len);
tprint_struct_next();
PRINT_FIELD_CSTRING_SZ(mkvol, name,
1 + CLAMP(mkvol.name_len, 0,
(int) sizeof(mkvol.name) - 1));
tprint_struct_end();
return 0;
}
if (!syserror(tcp)) {
tprint_value_changed();
printnum_int(tcp, arg, "%d");
}
return RVAL_IOCTL_DECODED;
}
static int
decode_UBI_IOCRSVOL(struct tcb *const tcp, const kernel_ulong_t arg)
{
struct ubi_rsvol_req rsvol;
tprint_arg_next();
if (!umove_or_printaddr(tcp, arg, &rsvol)) {
tprint_struct_begin();
PRINT_FIELD_D(rsvol, bytes);
tprint_struct_next();
PRINT_FIELD_D(rsvol, vol_id);
tprint_struct_end();
}
return RVAL_IOCTL_DECODED;
}
static bool
print_ubi_rnvol_req_ent_array_member(struct tcb *tcp, void *elem_buf,
size_t elem_size, void *data)
{
typeof(&((struct ubi_rnvol_req *) NULL)->ents[0]) p = elem_buf;
tprint_struct_begin();
PRINT_FIELD_D(*p, vol_id);
tprint_struct_next();
PRINT_FIELD_D(*p, name_len);
tprint_struct_next();
PRINT_FIELD_CSTRING_SZ(*p, name,
1 + CLAMP(p->name_len, 0,
(int) sizeof(p->name) - 1));
tprint_struct_end();
return true;
}
static int
decode_UBI_IOCRNVOL(struct tcb *const tcp, const kernel_ulong_t arg)
{
struct ubi_rnvol_req rnvol;
tprint_arg_next();
if (!umove_or_printaddr(tcp, arg, &rnvol)) {
tprint_struct_begin();
PRINT_FIELD_D(rnvol, count);
tprint_struct_next();
PRINT_FIELD_ARRAY_UPTO(rnvol, ents, rnvol.count, tcp,
print_ubi_rnvol_req_ent_array_member);
tprint_struct_end();
}
return RVAL_IOCTL_DECODED;
}
static int
decode_UBI_IOCEBCH(struct tcb *const tcp, const kernel_ulong_t arg)
{
struct ubi_leb_change_req leb;
tprint_arg_next();
if (!umove_or_printaddr(tcp, arg, &leb)) {
tprint_struct_begin();
PRINT_FIELD_D(leb, lnum);
tprint_struct_next();
PRINT_FIELD_D(leb, bytes);
tprint_struct_next();
PRINT_FIELD_XVAL(leb, dtype, ubi_data_types, "UBI_???");
tprint_struct_end();
}
return RVAL_IOCTL_DECODED;
}
static int
decode_UBI_IOCATT(struct tcb *const tcp, const kernel_ulong_t arg)
{
if (entering(tcp)) {
struct ubi_attach_req attach;
tprint_arg_next();
if (umove_or_printaddr(tcp, arg, &attach))
return RVAL_IOCTL_DECODED;
tprint_struct_begin();
PRINT_FIELD_D(attach, ubi_num);
tprint_struct_next();
PRINT_FIELD_D(attach, mtd_num);
tprint_struct_next();
PRINT_FIELD_D(attach, vid_hdr_offset);
tprint_struct_next();
PRINT_FIELD_D(attach, max_beb_per1024);
tprint_struct_end();
return 0;
}
if (!syserror(tcp)) {
tprint_value_changed();
printnum_int(tcp, arg, "%d");
}
return RVAL_IOCTL_DECODED;
}
static int
decode_UBI_IOCEBMAP(struct tcb *const tcp, const kernel_ulong_t arg)
{
struct ubi_map_req map;
tprint_arg_next();
if (!umove_or_printaddr(tcp, arg, &map)) {
tprint_struct_begin();
PRINT_FIELD_D(map, lnum);
tprint_struct_next();
PRINT_FIELD_XVAL(map, dtype, ubi_data_types, "UBI_???");
tprint_struct_end();
}
return RVAL_IOCTL_DECODED;
}
static int
decode_UBI_IOCSETVOLPROP(struct tcb *const tcp, const kernel_ulong_t arg)
{
struct ubi_set_vol_prop_req prop;
tprint_arg_next();
if (!umove_or_printaddr(tcp, arg, &prop)) {
tprint_struct_begin();
PRINT_FIELD_XVAL(prop, property,
ubi_volume_props, "UBI_VOL_PROP_???");
tprint_struct_next();
PRINT_FIELD_X(prop, value);
tprint_struct_end();
}
return RVAL_IOCTL_DECODED;
}
int
ubi_ioctl(struct tcb *const tcp, const unsigned int code,
const kernel_ulong_t arg)
{
switch (code) {
#define case_UBI(name) case UBI_ ## name: return decode_UBI_ ## name(tcp, arg)
case_UBI(IOCATT);
case_UBI(IOCEBCH);
case_UBI(IOCEBMAP);
case_UBI(IOCMKVOL);
case_UBI(IOCRNVOL);
case_UBI(IOCRSVOL);
case_UBI(IOCSETVOLPROP);
#undef case_UBI
case UBI_IOCVOLUP:
tprint_arg_next();
printnum_int64(tcp, arg, "%" PRIi64);
break;
case UBI_IOCDET:
case UBI_IOCEBER:
case UBI_IOCEBISMAP:
case UBI_IOCEBUNMAP:
case UBI_IOCRMVOL:
case UBI_IOCRPEB:
case UBI_IOCSPEB:
tprint_arg_next();
printnum_int(tcp, arg, "%d");
break;
case UBI_IOCVOLCRBLK:
case UBI_IOCVOLRMBLK:
/* no arguments */
break;
default:
return RVAL_DECODED;
}
return RVAL_IOCTL_DECODED;
}
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