sys/netinet/in_debug.c

   1 /*-
   2  * Copyright (c) 2010 Bjoern A. Zeeb <bz@FreeBSD.org>
   3  * All rights reserved.
   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  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 #include <sys/cdefs.h>
  28 __FBSDID("$FreeBSD$");
  29
  30 #include "opt_ddb.h"
  31
  32 #include <sys/param.h>
  33 #include <sys/systm.h>
  34 #include <sys/socket.h>
  35
  36 #ifdef DDB
  37 #include <ddb/ddb.h>
  38 #endif
  39
  40 #include <net/if.h>
  41 #include <net/if_var.h>
  42
  43 #include <netinet/in.h>
  44 #include <netinet/in_var.h>
  45
  46 #ifdef DDB
  47 static void
  48 in_show_sockaddr_in(struct sockaddr_in *sin)
  49 {
  50
  51 #define SIN_DB_RPINTF(f, e)     db_printf("\t   %s = " f "\n", #e, sin->e);
  52         db_printf("\tsockaddr_in = %p\n", sin);
  53         SIN_DB_RPINTF("%u", sin_len);
  54         SIN_DB_RPINTF("%u", sin_family);
  55         SIN_DB_RPINTF("%u", sin_port);
  56         SIN_DB_RPINTF("0x%08x", sin_addr.s_addr);
  57         db_printf("\t   %s = %02x%02x%02x%02x%02x%02x%02x%02x\n",
  58             "sin_zero[8]",
  59             sin->sin_zero[0], sin->sin_zero[1],
  60             sin->sin_zero[2], sin->sin_zero[3],
  61             sin->sin_zero[4], sin->sin_zero[5],
  62             sin->sin_zero[6], sin->sin_zero[7]);
  63 #undef SIN_DB_RPINTF
  64 }
  65
  66 DB_SHOW_COMMAND(sin, db_show_sin)
  67 {
  68         struct sockaddr_in *sin;
  69
  70         sin = (struct sockaddr_in *)addr;
  71         if (sin == NULL) {
  72                 /* usage: No need to confess if you didn't sin. */
  73                 db_printf("usage: show sin <struct sockaddr_in *>\n");
  74                 return;
  75         }
  76
  77         in_show_sockaddr_in(sin);
  78 }
  79
  80 static void
  81 in_show_in_ifaddr(struct in_ifaddr *ia)
  82 {
  83
  84 #define IA_DB_RPINTF(f, e)      db_printf("\t   %s = " f "\n", #e, ia->e);
  85 #define IA_DB_RPINTF_PTR(f, e)  db_printf("\t   %s = " f "\n", #e, &ia->e);
  86 #define IA_DB_RPINTF_DPTR(f, e) db_printf("\t  *%s = " f "\n", #e, *ia->e);
  87         db_printf("\tin_ifaddr = %p\n", ia);
  88         IA_DB_RPINTF_PTR("%p", ia_ifa);
  89         IA_DB_RPINTF("0x%08lx", ia_subnet);
  90         IA_DB_RPINTF("0x%08lx", ia_subnetmask);
  91         IA_DB_RPINTF("%p", ia_hash.le_next);
  92         IA_DB_RPINTF("%p", ia_hash.le_prev);
  93         IA_DB_RPINTF_DPTR("%p", ia_hash.le_prev);
  94         IA_DB_RPINTF("%p", ia_link.tqe_next);
  95         IA_DB_RPINTF("%p", ia_link.tqe_prev);
  96         IA_DB_RPINTF_DPTR("%p", ia_link.tqe_prev);
  97         IA_DB_RPINTF_PTR("%p", ia_addr);
  98         IA_DB_RPINTF_PTR("%p", ia_dstaddr);
  99         IA_DB_RPINTF_PTR("%p", ia_sockmask);
 100 #undef IA_DB_RPINTF_DPTR
 101 #undef IA_DB_RPINTF_PTR
 102 #undef IA_DB_RPINTF
 103 }
 104
 105 DB_SHOW_COMMAND(in_ifaddr, db_show_in_ifaddr)
 106 {
 107         struct in_ifaddr *ia;
 108
 109         ia = (struct in_ifaddr *)addr;
 110         if (ia == NULL) {
 111                 db_printf("usage: show in_ifaddr <struct in_ifaddr *>\n");
 112                 return;
 113         }
 114
 115         in_show_in_ifaddr(ia);
 116 }
 117 #endif