add irrfilter mode.

generates bgpd filter rules from the Internet Routing Registry aka IRR aka
the aut-num, as-set and route objects in the RIPE, ARIN, APNIC ... databases
accessed via whois, using the Routing Policy Specificaion Language RPSL.
implement the whois query interface, an RPSL parser (of course only the
parts we need), recursive as-set resolver, prefixes per AS lookup,
and an ouput module to make up the rules.
work in progress, not ready for general consumption yet.
import agreed by theo & claudio

1 files changed, 52 insertions, 0 deletions

diff --git a/usr.sbin/bgpctl/irrfilter.c b/usr.sbin/bgpctl/irrfilter.c
new file mode 100644
index 00000000000..203411d2d7c
--- /dev/null
+++ b/usr.sbin/bgpctl/irrfilter.c
@@ -0,0 +1,52 @@
+/*	$OpenBSD: irrfilter.c,v 1.1 2007/03/03 11:45:30 henning Exp $ */
+
+/*
+ * Copyright (c) 2007 Henning Brauer <henning@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 MIND, 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/param.h>
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "irrfilter.h"
+
+__dead void
+irr_main(u_int32_t AS, int flags, char *outdir)
+{
+	char	*query;
+	int	 r;
+
+	fprintf(stderr, "irrfilter for: %u\n", AS);
+
+	irrflags = flags;
+	TAILQ_INIT(&router_head);
+
+	/* send query for own AS, parse policy */
+	if (asprintf(&query, "AS%u", AS) == -1)
+		err(1, "parse_policy asprintf");
+	if ((r = whois(query, QTYPE_OWNAS)) == -1)
+		exit (1);
+	if (r == 0)
+		errx(1, "aut-num object %s not found", query);
+	free(query);
+
+	write_filters(outdir);
+
+	exit (0);
+}