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

   1 /*
   2  * Copyright (c) 2014 Mike Frysinger <vapier@gentoo.org>
   3  * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
   4  * Copyright (c) 2016-2018 The strace developers.
   5  * All rights reserved.
   6  *
   7  * SPDX-License-Identifier: LGPL-2.1-or-later
   8  */
   9
  10 #include "defs.h"
  11 #include <linux/fs.h>
  12
  13 int
  14 fs_x_ioctl(struct tcb *const tcp, const unsigned int code,
  15            const kernel_ulong_t arg)
  16 {
  17         switch (code) {
  18 #ifdef FITRIM
  19         /* First seen in linux-2.6.37 */
  20         case FITRIM: {
  21                 struct fstrim_range fstrim;
  22
  23                 tprints(", ");
  24                 if (!umove_or_printaddr(tcp, arg, &fstrim))
  25                         tprintf("{start=%#" PRIx64
  26                                 ", len=%#" PRIx64
  27                                 ", minlen=%#" PRIx64 "}",
  28                                 (uint64_t) fstrim.start,
  29                                 (uint64_t) fstrim.len,
  30                                 (uint64_t) fstrim.minlen);
  31                 break;
  32         }
  33 #endif
  34
  35         /* No arguments */
  36 #ifdef FIFREEZE
  37         case FIFREEZE:
  38         case FITHAW:
  39                 break;
  40 #endif
  41
  42         default:
  43                 return RVAL_DECODED;
  44         }
  45
  46         return RVAL_IOCTL_DECODED;
  47 }