xref: /freebsd/sys/netinet/in_debug.c (revision 685dc743dc3b5645e34836464128e1c0558b404b)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2010 Bjoern A. Zeeb <bz@FreeBSD.org>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #include <sys/cdefs.h>
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
in_show_sockaddr_in(struct sockaddr_in * sin)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 
DB_SHOW_COMMAND(sin,db_show_sin)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
in_show_in_ifaddr(struct in_ifaddr * ia)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.cle_next);
92 	IA_DB_RPINTF("%p", ia_hash.cle_prev);
93 	IA_DB_RPINTF_DPTR("%p", ia_hash.cle_prev);
94 	IA_DB_RPINTF("%p", ia_link.cstqe_next);
95 	IA_DB_RPINTF_PTR("%p", ia_addr);
96 	IA_DB_RPINTF_PTR("%p", ia_dstaddr);
97 	IA_DB_RPINTF_PTR("%p", ia_sockmask);
98 #undef IA_DB_RPINTF_DPTR
99 #undef IA_DB_RPINTF_PTR
100 #undef IA_DB_RPINTF
101 }
102 
DB_SHOW_COMMAND(in_ifaddr,db_show_in_ifaddr)103 DB_SHOW_COMMAND(in_ifaddr, db_show_in_ifaddr)
104 {
105 	struct in_ifaddr *ia;
106 
107 	ia = (struct in_ifaddr *)addr;
108 	if (ia == NULL) {
109 		db_printf("usage: show in_ifaddr <struct in_ifaddr *>\n");
110 		return;
111 	}
112 
113 	in_show_in_ifaddr(ia);
114 }
115 #endif
116