xref: /freebsd/sys/netinet/in_debug.c (revision 76f2606181eabc8ab20aa7297bbddc6e78bb549d)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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 __FBSDID("$FreeBSD$");
31 
32 #include "opt_ddb.h"
33 
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/socket.h>
37 
38 #ifdef DDB
39 #include <ddb/ddb.h>
40 #endif
41 
42 #include <net/if.h>
43 #include <net/if_var.h>
44 
45 #include <netinet/in.h>
46 #include <netinet/in_var.h>
47 
48 #ifdef DDB
49 static void
50 in_show_sockaddr_in(struct sockaddr_in *sin)
51 {
52 
53 #define	SIN_DB_RPINTF(f, e)	db_printf("\t   %s = " f "\n", #e, sin->e);
54 	db_printf("\tsockaddr_in = %p\n", sin);
55 	SIN_DB_RPINTF("%u", sin_len);
56 	SIN_DB_RPINTF("%u", sin_family);
57 	SIN_DB_RPINTF("%u", sin_port);
58 	SIN_DB_RPINTF("0x%08x", sin_addr.s_addr);
59 	db_printf("\t   %s = %02x%02x%02x%02x%02x%02x%02x%02x\n",
60 	    "sin_zero[8]",
61 	    sin->sin_zero[0], sin->sin_zero[1],
62 	    sin->sin_zero[2], sin->sin_zero[3],
63 	    sin->sin_zero[4], sin->sin_zero[5],
64 	    sin->sin_zero[6], sin->sin_zero[7]);
65 #undef SIN_DB_RPINTF
66 }
67 
68 DB_SHOW_COMMAND(sin, db_show_sin)
69 {
70 	struct sockaddr_in *sin;
71 
72 	sin = (struct sockaddr_in *)addr;
73 	if (sin == NULL) {
74 		/* usage: No need to confess if you didn't sin. */
75 		db_printf("usage: show sin <struct sockaddr_in *>\n");
76 		return;
77 	}
78 
79 	in_show_sockaddr_in(sin);
80 }
81 
82 static void
83 in_show_in_ifaddr(struct in_ifaddr *ia)
84 {
85 
86 #define	IA_DB_RPINTF(f, e)	db_printf("\t   %s = " f "\n", #e, ia->e);
87 #define	IA_DB_RPINTF_PTR(f, e)	db_printf("\t   %s = " f "\n", #e, &ia->e);
88 #define	IA_DB_RPINTF_DPTR(f, e)	db_printf("\t  *%s = " f "\n", #e, *ia->e);
89 	db_printf("\tin_ifaddr = %p\n", ia);
90 	IA_DB_RPINTF_PTR("%p", ia_ifa);
91 	IA_DB_RPINTF("0x%08lx", ia_subnet);
92 	IA_DB_RPINTF("0x%08lx", ia_subnetmask);
93 	IA_DB_RPINTF("%p", ia_hash.le_next);
94 	IA_DB_RPINTF("%p", ia_hash.le_prev);
95 	IA_DB_RPINTF_DPTR("%p", ia_hash.le_prev);
96 	IA_DB_RPINTF("%p", ia_link.cstqe_next);
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
118