mirror of
https://github.com/openbsd/src.git
synced 2024-12-22 07:27:59 -08:00
35f7e862b3
Do the checksum calculation in send_packet() instead of doing it all over the place. This way the fixup only happens in one place. OK tb@
74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
/* $OpenBSD: ask_nbrs2.c,v 1.6 2023/06/26 10:08:56 claudio Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2006 Esben Norby <norby@openbsd.org>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
#include <netinet/ip.h>
|
|
#include <arpa/inet.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include "igmp.h"
|
|
#include "dvmrpd.h"
|
|
#include "dvmrp.h"
|
|
#include "log.h"
|
|
#include "dvmrpe.h"
|
|
|
|
/* DVMRP ask neighbors2 packet handling */
|
|
int
|
|
send_ask_nbrs2(struct iface *iface, struct in_addr addr, void *data, int len)
|
|
{
|
|
struct sockaddr_in dst;
|
|
struct ibuf *buf;
|
|
int ret = 0;
|
|
|
|
log_debug("send_ask_nbrs2: interface %s addr %s",
|
|
iface->name, inet_ntoa(addr));
|
|
|
|
if (iface->passive)
|
|
return (0);
|
|
|
|
if ((buf = ibuf_open(iface->mtu - sizeof(struct ip))) == NULL)
|
|
fatal("send_ask_nbrs2");
|
|
|
|
/* DVMRP header */
|
|
if (gen_dvmrp_hdr(buf, iface, DVMRP_CODE_GRAFT_ACK))
|
|
goto fail;
|
|
|
|
dst.sin_family = AF_INET;
|
|
dst.sin_len = sizeof(struct sockaddr_in);
|
|
dst.sin_addr.s_addr = addr.s_addr;
|
|
|
|
ret = send_packet(iface, buf, &dst);
|
|
ibuf_free(buf);
|
|
return (ret);
|
|
fail:
|
|
log_warn("send_ask_nbrs2");
|
|
ibuf_free(buf);
|
|
return (-1);
|
|
}
|
|
|
|
void
|
|
recv_ask_nbrs2(struct nbr *nbr, char *buf, u_int16_t len)
|
|
{
|
|
log_debug("recv_ask_nbrs2: neighbor ID %s", inet_ntoa(nbr->id));
|
|
|
|
return;
|
|
}
|