1  /*
       2   * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
       3   * Copyright (c) 2017-2021 The strace developers.
       4   * All rights reserved.
       5   *
       6   * SPDX-License-Identifier: GPL-2.0-or-later
       7   */
       8  
       9  #include "tests.h"
      10  
      11  #include <stdio.h>
      12  #include "test_nlattr.h"
      13  #include <linux/if.h>
      14  #include <linux/if_arp.h>
      15  #include <linux/if_link.h>
      16  #include <linux/rtnetlink.h>
      17  
      18  #define XLAT_MACROS_ONLY
      19  # include "xlat/rtnl_ifla_proto_down_reason_attrs.h"
      20  #undef XLAT_MACROS_ONLY
      21  
      22  #define IFLA_ATTR IFLA_PROTO_DOWN_REASON
      23  #include "nlattr_ifla.h"
      24  
      25  int
      26  main(void)
      27  {
      28  	skip_if_unavailable("/proc/self/fd/");
      29  
      30  	const union {
      31  		uint8_t  bytes[4];
      32  		uint32_t num;
      33  	} num = { .num=0xabacdbcd };
      34  	const int fd = create_nl_socket(NETLINK_ROUTE);
      35  	void *nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen),
      36  				   NLA_HDRLEN + sizeof(num));
      37  
      38  	static char pattern[4096];
      39  	fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
      40  
      41  	static const struct {
      42  		uint8_t val;
      43  		const char *str;
      44  	} inv_attrs[] = {
      45  		{ ARG_STR(IFLA_PROTO_DOWN_REASON_UNSPEC) },
      46  		{ ARG_STR(0x3)  " /* IFLA_PROTO_DOWN_REASON_??? */" },
      47  		{ ARG_STR(0xfe) " /* IFLA_PROTO_DOWN_REASON_??? */" },
      48  	};
      49  
      50  	for (size_t i = 0; i < ARRAY_SIZE(inv_attrs); i++) {
      51  		TEST_NESTED_NLATTR_OBJECT_EX_(fd, nlh0, hdrlen,
      52  					      init_ifinfomsg, print_ifinfomsg,
      53  					      inv_attrs[i].val,
      54  					      inv_attrs[i].str,
      55  					      pattern, num,
      56  					      print_quoted_hex, 1,
      57  					      printf("\"\\x%x\\x%x\\x%x\\x%x\"",
      58  						     num.bytes[0], num.bytes[1],
      59  						     num.bytes[2], num.bytes[3])
      60  					      );
      61  	}
      62  
      63  	static const struct {
      64  		uint32_t val;
      65  		const char *str;
      66  	} attrs[] = {
      67  		{ ARG_STR(IFLA_PROTO_DOWN_REASON_MASK) },
      68  		{ ARG_STR(IFLA_PROTO_DOWN_REASON_VALUE) },
      69  	};
      70  
      71  	for (size_t i = 0; i < ARRAY_SIZE(attrs); i++) {
      72  		TEST_NESTED_NLATTR_OBJECT_EX_(fd, nlh0, hdrlen,
      73  					      init_ifinfomsg, print_ifinfomsg,
      74  					      attrs[i].val, attrs[i].str,
      75  					      pattern, num,
      76  					      print_quoted_hex, 1,
      77  					      printf("%#x", num.num));
      78  	}
      79  
      80  	puts("+++ exited with 0 +++");
      81  	return 0;
      82  }