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

   1 /*
   2  * Copyright (c) 2019 The strace developers.
   3  * All rights reserved.
   4  *
   5  * SPDX-License-Identifier: LGPL-2.1-or-later
   6  */
   7
   8 #include "defs.h"
   9 #include "print_fields.h"
  10
  11 #include <linux/watchdog.h>
  12
  13 #define XLAT_MACROS_ONLY
  14 #include "xlat/watchdog_ioctl_cmds.h"
  15 #undef XLAT_MACROS_ONLY
  16
  17 int
  18 watchdog_ioctl(struct tcb *const tcp, const unsigned int code,
  19            const kernel_ulong_t arg)
  20 {
  21         switch (code) {
  22         case WDIOC_GETSTATUS:
  23         case WDIOC_GETBOOTSTATUS:
  24         case WDIOC_GETTEMP:
  25         case WDIOC_GETTIMEOUT:
  26         case WDIOC_GETPRETIMEOUT:
  27         case WDIOC_GETTIMELEFT:
  28                 if (entering(tcp))
  29                         return 0;
  30                 ATTRIBUTE_FALLTHROUGH;
  31         case WDIOC_SETTIMEOUT:
  32         case WDIOC_SETPRETIMEOUT:
  33                 tprints(", ");
  34                 printnum_int(tcp, arg, "%d");
  35                 break;
  36
  37         /*
  38          * linux/watchdog.h says that this takes an int, but in
  39          * practice the argument is ignored.
  40          */
  41         case WDIOC_KEEPALIVE:
  42                 break;
  43         default:
  44                 return RVAL_DECODED;
  45         }
  46         return RVAL_IOCTL_DECODED;
  47 }