From a0e0018c9a7ef5ce7f6d2c3ae16aecbbd16a8f67 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 4 May 2024 16:18:53 +0200
Subject: Adding upstream version 6.1.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 tc/m_connmark.c | 149 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100644 tc/m_connmark.c

(limited to 'tc/m_connmark.c')

diff --git a/tc/m_connmark.c b/tc/m_connmark.c
new file mode 100644
index 0000000..640bba9
--- /dev/null
+++ b/tc/m_connmark.c
@@ -0,0 +1,149 @@
+/*
+ * m_connmark.c		Connection tracking marking import
+ *
+ * Copyright (c) 2011 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, see <http://www.gnu.org/licenses>.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include "utils.h"
+#include "tc_util.h"
+#include <linux/tc_act/tc_connmark.h>
+
+static void
+explain(void)
+{
+	fprintf(stderr,
+		"Usage: ... connmark [zone ZONE] [CONTROL] [index <INDEX>]\n"
+		"where :\n"
+		"\tZONE is the conntrack zone\n"
+		"\tCONTROL := reclassify | pipe | drop | continue | ok |\n"
+		"\t           goto chain <CHAIN_INDEX>\n");
+}
+
+static void
+usage(void)
+{
+	explain();
+	exit(-1);
+}
+
+static int
+parse_connmark(struct action_util *a, int *argc_p, char ***argv_p, int tca_id,
+	      struct nlmsghdr *n)
+{
+	struct tc_connmark sel = {};
+	char **argv = *argv_p;
+	int argc = *argc_p;
+	int ok = 0;
+	struct rtattr *tail;
+
+	while (argc > 0) {
+		if (matches(*argv, "connmark") == 0) {
+			ok = 1;
+			argc--;
+			argv++;
+		} else if (matches(*argv, "help") == 0) {
+			usage();
+		} else {
+			break;
+		}
+
+	}
+
+	if (!ok) {
+		explain();
+		return -1;
+	}
+
+	if (argc) {
+		if (matches(*argv, "zone") == 0) {
+			NEXT_ARG();
+			if (get_u16(&sel.zone, *argv, 10)) {
+				fprintf(stderr, "connmark: Illegal \"zone\"\n");
+				return -1;
+			}
+			argc--;
+			argv++;
+		}
+	}
+
+	parse_action_control_dflt(&argc, &argv, &sel.action, false, TC_ACT_PIPE);
+
+	if (argc) {
+		if (matches(*argv, "index") == 0) {
+			NEXT_ARG();
+			if (get_u32(&sel.index, *argv, 10)) {
+				fprintf(stderr, "connmark: Illegal \"index\"\n");
+				return -1;
+			}
+			argc--;
+			argv++;
+		}
+	}
+
+	tail = addattr_nest(n, MAX_MSG, tca_id);
+	addattr_l(n, MAX_MSG, TCA_CONNMARK_PARMS, &sel, sizeof(sel));
+	addattr_nest_end(n, tail);
+
+	*argc_p = argc;
+	*argv_p = argv;
+	return 0;
+}
+
+static int print_connmark(struct action_util *au, FILE *f, struct rtattr *arg)
+{
+	struct rtattr *tb[TCA_CONNMARK_MAX + 1];
+	struct tc_connmark *ci;
+
+	print_string(PRINT_ANY, "kind", "%s ", "connmark");
+	if (arg == NULL)
+		return 0;
+
+	parse_rtattr_nested(tb, TCA_CONNMARK_MAX, arg);
+	if (tb[TCA_CONNMARK_PARMS] == NULL) {
+		fprintf(stderr, "Missing connmark parameters\n");
+		return -1;
+	}
+
+	ci = RTA_DATA(tb[TCA_CONNMARK_PARMS]);
+
+	print_uint(PRINT_ANY, "zone", "zone %u", ci->zone);
+	print_action_control(f, " ", ci->action, "");
+
+	print_nl();
+	print_uint(PRINT_ANY, "index", "\t index %u", ci->index);
+	print_int(PRINT_ANY, "ref", " ref %d", ci->refcnt);
+	print_int(PRINT_ANY, "bind", " bind %d", ci->bindcnt);
+
+	if (show_stats) {
+		if (tb[TCA_CONNMARK_TM]) {
+			struct tcf_t *tm = RTA_DATA(tb[TCA_CONNMARK_TM]);
+
+			print_tm(f, tm);
+		}
+	}
+	print_nl();
+
+	return 0;
+}
+
+struct action_util connmark_action_util = {
+	.id = "connmark",
+	.parse_aopt = parse_connmark,
+	.print_aopt = print_connmark,
+};
-- 
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