Adding upstream version 1.0.9.upstream/1.0.9upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 84 insertions, 0 deletions

diff --git a/src/osf.c b/src/osf.c
new file mode 100644
index 0000000..a8f80b2
--- /dev/null
+++ b/src/osf.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2018 Fernando Fernandez Mancera <ffmancera@riseup.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 (or any
+ * later) as published by the Free Software Foundation.
+ */
+
+#include <nft.h>
+
+#include <nftables.h>
+#include <expression.h>
+#include <utils.h>
+#include <osf.h>
+#include <json.h>
+
+static const char *osf_ttl_int_to_str(const uint8_t ttl)
+{
+	if (ttl == 1)
+		return "ttl loose ";
+	else if (ttl == 2)
+		return "ttl skip ";
+
+	return "";
+}
+
+static void osf_expr_print(const struct expr *expr, struct output_ctx *octx)
+{
+	const char *ttl_str = osf_ttl_int_to_str(expr->osf.ttl);
+
+	if (expr->osf.flags & NFT_OSF_F_VERSION)
+		nft_print(octx, "osf %sversion", ttl_str);
+	else
+		nft_print(octx, "osf %sname", ttl_str);
+}
+
+static void osf_expr_clone(struct expr *new, const struct expr *expr)
+{
+	new->osf.ttl = expr->osf.ttl;
+	new->osf.flags = expr->osf.flags;
+}
+
+static bool osf_expr_cmp(const struct expr *e1, const struct expr *e2)
+{
+	return (e1->osf.ttl == e2->osf.ttl) &&
+	       (e1->osf.flags == e2->osf.flags);
+}
+
+static int osf_expr_build_udata(struct nftnl_udata_buf *udbuf,
+				 const struct expr *expr)
+{
+	return 0;
+}
+
+static struct expr *osf_expr_parse_udata(const struct nftnl_udata *attr)
+{
+	return osf_expr_alloc(&internal_location, 0, 0);
+}
+
+const struct expr_ops osf_expr_ops = {
+	.type		= EXPR_OSF,
+	.name		= "osf",
+	.print		= osf_expr_print,
+	.clone		= osf_expr_clone,
+	.cmp		= osf_expr_cmp,
+	.json		= osf_expr_json,
+	.parse_udata	= osf_expr_parse_udata,
+	.build_udata	= osf_expr_build_udata,
+};
+
+struct expr *osf_expr_alloc(const struct location *loc, const uint8_t ttl,
+			    const uint32_t flags)
+{
+	unsigned int len = NFT_OSF_MAXGENRELEN * BITS_PER_BYTE;
+	const struct datatype *type = &string_type;
+	struct expr *expr;
+
+	expr = expr_alloc(loc, EXPR_OSF, type,
+			  BYTEORDER_HOST_ENDIAN, len);
+	expr->osf.ttl = ttl;
+	expr->osf.flags = flags;
+
+	return expr;
+}