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

   1 /*
   2  * Copyright (c) 2012 Mike Frysinger <vapier@gentoo.org>
   3  * Copyright (c) 2012-2017 The strace developers.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. The name of the author may not be used to endorse or promote products
  14  *    derived from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 #include "defs.h"
  29
  30 #ifdef HAVE_STRUCT_UBI_ATTACH_REQ_MAX_BEB_PER1024
  31
  32 # include <linux/ioctl.h>
  33 # include <mtd/ubi-user.h>
  34
  35 # include "xlat/ubi_volume_types.h"
  36 # include "xlat/ubi_volume_props.h"
  37
  38 int
  39 ubi_ioctl(struct tcb *const tcp, const unsigned int code,
  40           const kernel_ulong_t arg)
  41 {
  42         if (!verbose(tcp))
  43                 return RVAL_DECODED;
  44
  45         switch (code) {
  46         case UBI_IOCMKVOL:
  47                 if (entering(tcp)) {
  48                         struct ubi_mkvol_req mkvol;
  49
  50                         tprints(", ");
  51                         if (umove_or_printaddr(tcp, arg, &mkvol))
  52                                 break;
  53
  54                         tprintf("{vol_id=%" PRIi32 ", alignment=%" PRIi32
  55                                 ", bytes=%" PRIi64 ", vol_type=", mkvol.vol_id,
  56                                 mkvol.alignment, (int64_t)mkvol.bytes);
  57                         printxval(ubi_volume_types,
  58                                     (uint8_t) mkvol.vol_type, "UBI_???_VOLUME");
  59                         tprintf(", name_len=%" PRIi16 ", name=",
  60                                 mkvol.name_len);
  61                         print_quoted_cstring(mkvol.name,
  62                                         CLAMP(mkvol.name_len, 0,
  63                                               UBI_MAX_VOLUME_NAME));
  64                         tprints("}");
  65                         return 0;
  66                 }
  67                 if (!syserror(tcp)) {
  68                         tprints(" => ");
  69                         printnum_int(tcp, arg, "%d");
  70                 }
  71                 break;
  72
  73         case UBI_IOCRSVOL: {
  74                 struct ubi_rsvol_req rsvol;
  75
  76                 tprints(", ");
  77                 if (umove_or_printaddr(tcp, arg, &rsvol))
  78                         break;
  79
  80                 tprintf("{vol_id=%" PRIi32 ", bytes=%" PRIi64 "}",
  81                         rsvol.vol_id, (int64_t)rsvol.bytes);
  82                 break;
  83         }
  84
  85         case UBI_IOCRNVOL: {
  86                 struct ubi_rnvol_req rnvol;
  87                 int c;
  88
  89                 tprints(", ");
  90                 if (umove_or_printaddr(tcp, arg, &rnvol))
  91                         break;
  92
  93                 tprintf("{count=%" PRIi32 ", ents=[", rnvol.count);
  94                 for (c = 0; c < CLAMP(rnvol.count, 0, UBI_MAX_RNVOL); ++c) {
  95                         if (c)
  96                                 tprints(", ");
  97                         tprintf("{vol_id=%" PRIi32 ", name_len=%" PRIi16
  98                                 ", name=", rnvol.ents[c].vol_id,
  99                                 rnvol.ents[c].name_len);
 100                         print_quoted_cstring(rnvol.ents[c].name,
 101                                         CLAMP(rnvol.ents[c].name_len, 0,
 102                                               UBI_MAX_VOLUME_NAME));
 103                         tprints("}");
 104                 }
 105                 tprints("]}");
 106                 break;
 107         }
 108
 109         case UBI_IOCEBCH: {
 110                 struct ubi_leb_change_req leb;
 111
 112                 tprints(", ");
 113                 if (umove_or_printaddr(tcp, arg, &leb))
 114                         break;
 115
 116                 tprintf("{lnum=%d, bytes=%d}", leb.lnum, leb.bytes);
 117                 break;
 118         }
 119
 120         case UBI_IOCATT:
 121                 if (entering(tcp)) {
 122                         struct ubi_attach_req attach;
 123
 124                         tprints(", ");
 125                         if (umove_or_printaddr(tcp, arg, &attach))
 126                                 break;
 127
 128                         tprintf("{ubi_num=%" PRIi32 ", mtd_num=%" PRIi32
 129                                 ", vid_hdr_offset=%" PRIi32
 130                                 ", max_beb_per1024=%" PRIi16 "}",
 131                                 attach.ubi_num, attach.mtd_num,
 132                                 attach.vid_hdr_offset, attach.max_beb_per1024);
 133                         return 0;
 134                 }
 135                 if (!syserror(tcp)) {
 136                         tprints(" => ");
 137                         printnum_int(tcp, arg, "%d");
 138                 }
 139                 break;
 140
 141         case UBI_IOCEBMAP: {
 142                 struct ubi_map_req map;
 143
 144                 tprints(", ");
 145                 if (umove_or_printaddr(tcp, arg, &map))
 146                         break;
 147
 148                 tprintf("{lnum=%" PRIi32 ", dtype=%" PRIi8 "}",
 149                         map.lnum, map.dtype);
 150                 break;
 151         }
 152
 153         case UBI_IOCSETVOLPROP: {
 154                 struct ubi_set_vol_prop_req prop;
 155
 156                 tprints(", ");
 157                 if (umove_or_printaddr(tcp, arg, &prop))
 158                         break;
 159
 160                 tprints("{property=");
 161                 printxval(ubi_volume_props, prop.property, "UBI_VOL_PROP_???");
 162                 tprintf(", value=%#" PRIx64 "}", (uint64_t)prop.value);
 163                 break;
 164         }
 165
 166
 167         case UBI_IOCVOLUP:
 168                 tprints(", ");
 169                 printnum_int64(tcp, arg, "%" PRIi64);
 170                 break;
 171
 172         case UBI_IOCDET:
 173         case UBI_IOCEBER:
 174         case UBI_IOCEBISMAP:
 175         case UBI_IOCEBUNMAP:
 176         case UBI_IOCRMVOL:
 177                 tprints(", ");
 178                 printnum_int(tcp, arg, "%d");
 179                 break;
 180
 181 # ifdef UBI_IOCVOLCRBLK
 182         case UBI_IOCVOLCRBLK:
 183 # endif
 184 # ifdef UBI_IOCVOLRMBLK
 185         case UBI_IOCVOLRMBLK:
 186 # endif
 187                 /* no arguments */
 188                 break;
 189
 190         default:
 191                 return RVAL_DECODED;
 192         }
 193
 194         return RVAL_IOCTL_DECODED;
 195 }
 196
 197 #endif /* HAVE_STRUCT_UBI_ATTACH_REQ_MAX_BEB_PER1024 */