granicus.if.org Git - strace/blob - ubi.c

   1 /*
   2  * Copyright (c) 2012 Mike Frysinger <vapier@gentoo.org>
   3  * Copyright (c) 2012-2018 The strace developers.
   4  *
   5  * SPDX-License-Identifier: LGPL-2.1-or-later
   6  */
   7
   8 #include "defs.h"
   9
  10 #ifdef HAVE_STRUCT_UBI_ATTACH_REQ_MAX_BEB_PER1024
  11
  12 # include <linux/ioctl.h>
  13 # include <mtd/ubi-user.h>
  14
  15 # include "xlat/ubi_volume_types.h"
  16 # include "xlat/ubi_volume_props.h"
  17
  18 int
  19 ubi_ioctl(struct tcb *const tcp, const unsigned int code,
  20           const kernel_ulong_t arg)
  21 {
  22         if (!verbose(tcp))
  23                 return RVAL_DECODED;
  24
  25         switch (code) {
  26         case UBI_IOCMKVOL:
  27                 if (entering(tcp)) {
  28                         struct ubi_mkvol_req mkvol;
  29
  30                         tprints(", ");
  31                         if (umove_or_printaddr(tcp, arg, &mkvol))
  32                                 break;
  33
  34                         tprintf("{vol_id=%" PRIi32 ", alignment=%" PRIi32
  35                                 ", bytes=%" PRIi64 ", vol_type=", mkvol.vol_id,
  36                                 mkvol.alignment, (int64_t)mkvol.bytes);
  37                         printxval(ubi_volume_types,
  38                                     (uint8_t) mkvol.vol_type, "UBI_???_VOLUME");
  39                         tprintf(", name_len=%" PRIi16 ", name=",
  40                                 mkvol.name_len);
  41                         print_quoted_cstring(mkvol.name,
  42                                         CLAMP(mkvol.name_len, 0,
  43                                               UBI_MAX_VOLUME_NAME));
  44                         tprints("}");
  45                         return 0;
  46                 }
  47                 if (!syserror(tcp)) {
  48                         tprints(" => ");
  49                         printnum_int(tcp, arg, "%d");
  50                 }
  51                 break;
  52
  53         case UBI_IOCRSVOL: {
  54                 struct ubi_rsvol_req rsvol;
  55
  56                 tprints(", ");
  57                 if (umove_or_printaddr(tcp, arg, &rsvol))
  58                         break;
  59
  60                 tprintf("{vol_id=%" PRIi32 ", bytes=%" PRIi64 "}",
  61                         rsvol.vol_id, (int64_t)rsvol.bytes);
  62                 break;
  63         }
  64
  65         case UBI_IOCRNVOL: {
  66                 struct ubi_rnvol_req rnvol;
  67                 int c;
  68
  69                 tprints(", ");
  70                 if (umove_or_printaddr(tcp, arg, &rnvol))
  71                         break;
  72
  73                 tprintf("{count=%" PRIi32 ", ents=[", rnvol.count);
  74                 for (c = 0; c < CLAMP(rnvol.count, 0, UBI_MAX_RNVOL); ++c) {
  75                         if (c)
  76                                 tprints(", ");
  77                         tprintf("{vol_id=%" PRIi32 ", name_len=%" PRIi16
  78                                 ", name=", rnvol.ents[c].vol_id,
  79                                 rnvol.ents[c].name_len);
  80                         print_quoted_cstring(rnvol.ents[c].name,
  81                                         CLAMP(rnvol.ents[c].name_len, 0,
  82                                               UBI_MAX_VOLUME_NAME));
  83                         tprints("}");
  84                 }
  85                 tprints("]}");
  86                 break;
  87         }
  88
  89         case UBI_IOCEBCH: {
  90                 struct ubi_leb_change_req leb;
  91
  92                 tprints(", ");
  93                 if (umove_or_printaddr(tcp, arg, &leb))
  94                         break;
  95
  96                 tprintf("{lnum=%d, bytes=%d}", leb.lnum, leb.bytes);
  97                 break;
  98         }
  99
 100         case UBI_IOCATT:
 101                 if (entering(tcp)) {
 102                         struct ubi_attach_req attach;
 103
 104                         tprints(", ");
 105                         if (umove_or_printaddr(tcp, arg, &attach))
 106                                 break;
 107
 108                         tprintf("{ubi_num=%" PRIi32 ", mtd_num=%" PRIi32
 109                                 ", vid_hdr_offset=%" PRIi32
 110                                 ", max_beb_per1024=%" PRIi16 "}",
 111                                 attach.ubi_num, attach.mtd_num,
 112                                 attach.vid_hdr_offset, attach.max_beb_per1024);
 113                         return 0;
 114                 }
 115                 if (!syserror(tcp)) {
 116                         tprints(" => ");
 117                         printnum_int(tcp, arg, "%d");
 118                 }
 119                 break;
 120
 121         case UBI_IOCEBMAP: {
 122                 struct ubi_map_req map;
 123
 124                 tprints(", ");
 125                 if (umove_or_printaddr(tcp, arg, &map))
 126                         break;
 127
 128                 tprintf("{lnum=%" PRIi32 ", dtype=%" PRIi8 "}",
 129                         map.lnum, map.dtype);
 130                 break;
 131         }
 132
 133         case UBI_IOCSETVOLPROP: {
 134                 struct ubi_set_vol_prop_req prop;
 135
 136                 tprints(", ");
 137                 if (umove_or_printaddr(tcp, arg, &prop))
 138                         break;
 139
 140                 tprints("{property=");
 141                 printxval(ubi_volume_props, prop.property, "UBI_VOL_PROP_???");
 142                 tprintf(", value=%#" PRIx64 "}", (uint64_t)prop.value);
 143                 break;
 144         }
 145
 146
 147         case UBI_IOCVOLUP:
 148                 tprints(", ");
 149                 printnum_int64(tcp, arg, "%" PRIi64);
 150                 break;
 151
 152         case UBI_IOCDET:
 153         case UBI_IOCEBER:
 154         case UBI_IOCEBISMAP:
 155         case UBI_IOCEBUNMAP:
 156         case UBI_IOCRMVOL:
 157                 tprints(", ");
 158                 printnum_int(tcp, arg, "%d");
 159                 break;
 160
 161 # ifdef UBI_IOCVOLCRBLK
 162         case UBI_IOCVOLCRBLK:
 163 # endif
 164 # ifdef UBI_IOCVOLRMBLK
 165         case UBI_IOCVOLRMBLK:
 166 # endif
 167                 /* no arguments */
 168                 break;
 169
 170         default:
 171                 return RVAL_DECODED;
 172         }
 173
 174         return RVAL_IOCTL_DECODED;
 175 }
 176
 177 #endif /* HAVE_STRUCT_UBI_ATTACH_REQ_MAX_BEB_PER1024 */