1 files changed, 103 insertions, 0 deletions
diff --git a/contrib/ipfilter/lib/load_hash.c b/contrib/ipfilter/lib/load_hash.c
new file mode 100644
index 0000000..7ec79a9
--- /dev/null
+++ b/contrib/ipfilter/lib/load_hash.c
@@ -0,0 +1,103 @@
+/*	$FreeBSD$	*/
+
+/*
+ * Copyright (C) 2012 by Darren Reed.
+ *
+ * See the IPFILTER.LICENCE file for details on licencing.
+ *
+ * $Id$
+ */
+
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include "ipf.h"
+#include "netinet/ip_lookup.h"
+#include "netinet/ip_htable.h"
+
+
+int
+load_hash(iphp, list, iocfunc)
+	iphtable_t *iphp;
+	iphtent_t *list;
+	ioctlfunc_t iocfunc;
+{
+	iplookupop_t op;
+	iphtable_t iph;
+	iphtent_t *a;
+	size_t size;
+	int n;
+
+	if (pool_open() == -1)
+		return -1;
+
+	for (n = 0, a = list; a != NULL; a = a->ipe_next)
+		n++;
+
+	bzero((char *)&iph, sizeof(iph));
+	op.iplo_arg = 0;
+	op.iplo_type = IPLT_HASH;
+	op.iplo_unit = iphp->iph_unit;
+	strncpy(op.iplo_name, iphp->iph_name, sizeof(op.iplo_name));
+	if (*op.iplo_name == '\0')
+		op.iplo_arg = IPHASH_ANON;
+	op.iplo_size = sizeof(iph);
+	op.iplo_struct = &iph;
+	iph = *iphp;
+	if (n <= 0)
+		n = 1;
+	if (iphp->iph_size == 0)
+		size = n * 2 - 1;
+	else
+		size = iphp->iph_size;
+	if ((list == NULL) && (size == 1)) {
+		fprintf(stderr,
+			"WARNING: empty hash table %s, recommend setting %s\n",
+			iphp->iph_name, "size to match expected use");
+	}
+	iph.iph_size = size;
+	iph.iph_table = NULL;
+	iph.iph_list = NULL;
+	iph.iph_ref = 0;
+
+	if ((opts & OPT_REMOVE) == 0) {
+		if (pool_ioctl(iocfunc, SIOCLOOKUPADDTABLE, &op))
+			if ((opts & OPT_DONOTHING) == 0) {
+				return ipf_perror_fd(pool_fd(), iocfunc,
+					"add lookup hash table");
+			}
+	}
+
+	strncpy(iph.iph_name, op.iplo_name, sizeof(op.iplo_name));
+	strncpy(iphp->iph_name, op.iplo_name, sizeof(op.iplo_name));
+
+	if (opts & OPT_VERBOSE) {
+		iph.iph_table = calloc(size, sizeof(*iph.iph_table));
+		if (iph.iph_table == NULL) {
+			perror("calloc(size, sizeof(*iph.iph_table))");
+			return -1;
+		}
+		iph.iph_list = list;
+		printhash(&iph, bcopywrap, iph.iph_name, opts, NULL);
+		free(iph.iph_table);
+
+		for (a = list; a != NULL; a = a->ipe_next) {
+			a->ipe_addr.in4_addr = htonl(a->ipe_addr.in4_addr);
+			a->ipe_mask.in4_addr = htonl(a->ipe_mask.in4_addr);
+		}
+	}
+
+	if (opts & OPT_DEBUG)
+		printf("Hash %s:\n", iph.iph_name);
+
+	for (a = list; a != NULL; a = a->ipe_next)
+		load_hashnode(iphp->iph_unit, iph.iph_name, a, 0, iocfunc);
+
+	if ((opts & OPT_REMOVE) != 0) {
+		if (pool_ioctl(iocfunc, SIOCLOOKUPDELTABLE, &op))
+			if ((opts & OPT_DONOTHING) == 0) {
+				return ipf_perror_fd(pool_fd(), iocfunc,
+					"delete lookup hash table");
+			}
+	}
+	return 0;
+}