xref: /freebsd/sys/netinet/in_debug.c (revision a0ee8cc6)
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
118