2eb352ca19
- Remove ia_net, ia_netmask, ia_netbroadcast from struct in_ifaddr. - Remove net.inet.ip.subnetsarelocal, I bet no one need it in 2011. - fix bug when we were not forwarding to a host which matches classful net address. For example router having 192.168.x.y/16 network attached, would not forward traffic to 192.168.*.0, which are legal IPs in CIDR world. - For compatibility, leave autoguessing of mask based on class. Reviewed by: andre, bz, rwatson
118 lines
3.5 KiB
C
118 lines
3.5 KiB
C
/*-
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* Copyright (c) 2010 Bjoern A. Zeeb <bz@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_ddb.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/socket.h>
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#ifdef DDB
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#include <ddb/ddb.h>
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#endif
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#include <net/if.h>
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#include <net/if_var.h>
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#include <netinet/in.h>
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#include <netinet/in_var.h>
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#ifdef DDB
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static void
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in_show_sockaddr_in(struct sockaddr_in *sin)
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{
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#define SIN_DB_RPINTF(f, e) db_printf("\t %s = " f "\n", #e, sin->e);
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db_printf("\tsockaddr_in = %p\n", sin);
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SIN_DB_RPINTF("%u", sin_len);
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SIN_DB_RPINTF("%u", sin_family);
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SIN_DB_RPINTF("%u", sin_port);
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SIN_DB_RPINTF("0x%08x", sin_addr.s_addr);
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db_printf("\t %s = %02x%02x%02x%02x%02x%02x%02x%02x\n",
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"sin_zero[8]",
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sin->sin_zero[0], sin->sin_zero[1],
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sin->sin_zero[2], sin->sin_zero[3],
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sin->sin_zero[4], sin->sin_zero[5],
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sin->sin_zero[6], sin->sin_zero[7]);
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#undef SIN_DB_RPINTF
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}
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DB_SHOW_COMMAND(sin, db_show_sin)
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{
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struct sockaddr_in *sin;
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sin = (struct sockaddr_in *)addr;
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if (sin == NULL) {
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/* usage: No need to confess if you didn't sin. */
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db_printf("usage: show sin <struct sockaddr_in *>\n");
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return;
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}
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in_show_sockaddr_in(sin);
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}
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static void
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in_show_in_ifaddr(struct in_ifaddr *ia)
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{
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#define IA_DB_RPINTF(f, e) db_printf("\t %s = " f "\n", #e, ia->e);
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#define IA_DB_RPINTF_PTR(f, e) db_printf("\t %s = " f "\n", #e, &ia->e);
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#define IA_DB_RPINTF_DPTR(f, e) db_printf("\t *%s = " f "\n", #e, *ia->e);
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db_printf("\tin_ifaddr = %p\n", ia);
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IA_DB_RPINTF_PTR("%p", ia_ifa);
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IA_DB_RPINTF("0x%08lx", ia_subnet);
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IA_DB_RPINTF("0x%08lx", ia_subnetmask);
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IA_DB_RPINTF("%p", ia_hash.le_next);
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IA_DB_RPINTF("%p", ia_hash.le_prev);
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IA_DB_RPINTF_DPTR("%p", ia_hash.le_prev);
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IA_DB_RPINTF("%p", ia_link.tqe_next);
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IA_DB_RPINTF("%p", ia_link.tqe_prev);
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IA_DB_RPINTF_DPTR("%p", ia_link.tqe_prev);
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IA_DB_RPINTF_PTR("%p", ia_addr);
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IA_DB_RPINTF_PTR("%p", ia_dstaddr);
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IA_DB_RPINTF_PTR("%p", ia_sockmask);
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#undef IA_DB_RPINTF_DPTR
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#undef IA_DB_RPINTF_PTR
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#undef IA_DB_RPINTF
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}
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DB_SHOW_COMMAND(in_ifaddr, db_show_in_ifaddr)
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{
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struct in_ifaddr *ia;
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ia = (struct in_ifaddr *)addr;
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if (ia == NULL) {
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db_printf("usage: show in_ifaddr <struct in_ifaddr *>\n");
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return;
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}
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in_show_in_ifaddr(ia);
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}
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#endif
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