1 files changed, 80 insertions, 0 deletions
diff --git a/usr.sbin/dvmrpd/graft.c b/usr.sbin/dvmrpd/graft.c
new file mode 100644
index 00000000000..1931de3e3dc
--- /dev/null
+++ b/usr.sbin/dvmrpd/graft.c
@@ -0,0 +1,80 @@
+/*	$OpenBSD: graft.c,v 1.1 2006/06/01 14:12:20 norby Exp $ */
+
+/*
+ * Copyright (c) 2005, 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/in_systm.h>
+#include <netinet/ip.h>
+#include <arpa/inet.h>
+
+#include <stdlib.h>
+#include <strings.h>
+
+#include "igmp.h"
+#include "dvmrpd.h"
+#include "dvmrp.h"
+#include "log.h"
+#include "dvmrpe.h"
+
+/* DVMRP graft packet handling */
+int
+send_graft(struct iface *iface, struct in_addr addr, void *data, int len)
+{
+	struct sockaddr_in	 dst;
+	struct buf		*buf;
+	struct dvmrp_hdr	*dvmrp_hdr;
+	int			 ret = 0;
+
+	log_debug("send_graft: interface %s addr %s",
+	    iface->name, inet_ntoa(addr));
+
+	if (iface->passive)
+		return (0);
+
+	if ((buf = buf_open(iface->mtu - sizeof(struct ip))) == NULL)
+		fatal("send_graft");
+
+	/* DVMRP header */
+	if (gen_dvmrp_hdr(buf, iface, DVMRP_CODE_GRAFT))
+		goto fail;
+
+	dst.sin_family = AF_INET;
+	dst.sin_len = sizeof(struct sockaddr_in);
+	dst.sin_addr.s_addr = addr.s_addr;
+
+	/* update chksum */
+	dvmrp_hdr = buf_seek(buf, 0, sizeof(dvmrp_hdr));
+	dvmrp_hdr->chksum = in_cksum(buf->buf, buf->wpos);
+
+	ret = send_packet(iface, buf->buf, buf->wpos, &dst);
+	buf_free(buf);
+	return (ret);
+fail:
+	log_warn("send_graft");
+	buf_free(buf);
+	return (-1);
+}
+
+void
+recv_graft(struct nbr *nbr, char *buf, u_int16_t len)
+{
+	log_debug("recv_graft: neighbor ID %s", inet_ntoa(nbr->id));
+
+	return;
+}