1  /*
       2   * Copyright (c) 2019-2021 The strace developers.
       3   * All rights reserved.
       4   *
       5   * SPDX-License-Identifier: LGPL-2.1-or-later
       6   */
       7  
       8  #include "defs.h"
       9  
      10  #include <linux/watchdog.h>
      11  
      12  #define XLAT_MACROS_ONLY
      13  #include "xlat/watchdog_ioctl_cmds.h"
      14  #undef XLAT_MACROS_ONLY
      15  
      16  int
      17  watchdog_ioctl(struct tcb *const tcp, const unsigned int code,
      18  	   const kernel_ulong_t arg)
      19  {
      20  	switch (code) {
      21  	case WDIOC_GETSTATUS:
      22  	case WDIOC_GETBOOTSTATUS:
      23  	case WDIOC_GETTEMP:
      24  	case WDIOC_GETTIMEOUT:
      25  	case WDIOC_GETPRETIMEOUT:
      26  	case WDIOC_GETTIMELEFT:
      27  		if (entering(tcp))
      28  			return 0;
      29  		ATTRIBUTE_FALLTHROUGH;
      30  	case WDIOC_SETTIMEOUT:
      31  	case WDIOC_SETPRETIMEOUT:
      32  		tprint_arg_next();
      33  		printnum_int(tcp, arg, "%d");
      34  		break;
      35  
      36  	/*
      37  	 * linux/watchdog.h says that this takes an int, but in
      38  	 * practice the argument is ignored.
      39  	 */
      40  	case WDIOC_KEEPALIVE:
      41  		break;
      42  	default:
      43  		return RVAL_DECODED;
      44  	}
      45  	return RVAL_IOCTL_DECODED;
      46  }