@@ -315,6 +315,23 @@ sify the packet into a specific CBQ class).
Set the major and minor class value. The values are always
interpreted as hexadecimal even if no 0x prefix is given.
+.SS MARK
+This module allows you to set the skb->mark value (and thus classify
+the packet by the mark in u32)
+
+.TP
+.BR "--set-mark mark"
+Set the mark value. The values are always
+interpreted as hexadecimal even if no 0x prefix is given
+
+.TP
+.BR "--and-mark mark"
+Binary AND the mark with bits.
+
+.TP
+.BR "--or-mark mark"
+Binary OR the mark with bits.
+
.SH MAILINGLISTS
.BR "" "See " http://netfilter.org/mailinglists.html
.SH SEE ALSO
@@ -1,6 +1,6 @@
#! /usr/bin/make
-EXT_FUNC+=standard mangle CLASSIFY
+EXT_FUNC+=standard mangle CLASSIFY MARK
EXT_OBJS+=$(foreach T,$(EXT_FUNC), extensions/arpt_$(T).o)
extensions/ebt_%.o: extensions/arpt_%.c include/arptables.h include/arptables_common.h
new file mode 100644
@@ -0,0 +1,151 @@
+/*
+ * (C) 2014 by Gao Feng <gaofeng@cn.fujitsu.com>
+ *
+ * arpt_MARK.c -- arptables extension to set mark for arp packet
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that 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, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <stdio.h>
+#include <getopt.h>
+#include <arptables.h>
+#include <linux/netfilter/xt_mark.h>
+#include <linux/netfilter/xt_MARK.h>
+#include <linux/netfilter/x_tables.h>
+
+static void help(void)
+{
+ printf(
+"MARK target v%s options:\n"
+"--set-mark mark : set the mark value\n"
+"--and-mark value : binary AND the mark with value\n"
+"--or-mark value : binary OR the mark with value\n",
+ ARPTABLES_VERSION);
+}
+
+#define MARK_OPT 1
+#define AND_MARK_OPT 2
+#define OR_MARK_OPT 3
+
+
+static struct option opts[] = {
+ { .name = "set-mark", .has_arg = required_argument, .flag = 0, .val = MARK_OPT },
+ { .name = "and-mark", .has_arg = required_argument, .flag = 0, .val = AND_MARK_OPT },
+ { .name = "or-mark", .has_arg = required_argument, .flag = 0, .val = OR_MARK_OPT },
+ { .name = NULL}
+};
+
+static void init(struct arpt_entry_target *t)
+{
+ struct xt_mark_tginfo2 *info = (struct xt_mark_tginfo2 *) t->data;
+
+ info->mark = 0;
+}
+
+static int parse(int c, char **argv, int invert, unsigned int *flags,
+ const struct arpt_entry *e,
+ struct arpt_entry_target **t)
+{
+ struct xt_mark_tginfo2 *info = (struct xt_mark_tginfo2 *)(*t)->data;
+ int i;
+
+ switch (c) {
+ case MARK_OPT:
+ if (sscanf(argv[optind-1], "%x", &i) != 1) {
+ exit_error(PARAMETER_PROBLEM,
+ "Bad mark value `%s'", optarg);
+ return 0;
+ }
+ info->mark = i;
+ if (*flags)
+ exit_error(PARAMETER_PROBLEM,
+ "MARK: Can't specify --set-mark twice");
+ *flags = 1;
+ break;
+ case AND_MARK_OPT:
+ if (sscanf(argv[optind-1], "%x", &i) != 1) {
+ exit_error(PARAMETER_PROBLEM,
+ "Bad mark value `%s'", optarg);
+ return 0;
+ }
+ info->mark = 0;
+ info->mask = ~i;
+ if (*flags)
+ exit_error(PARAMETER_PROBLEM,
+ "MARK: Can't specify --and-mark twice");
+ *flags = 1;
+ break;
+ case OR_MARK_OPT:
+ if (sscanf(argv[optind-1], "%x", &i) != 1) {
+ exit_error(PARAMETER_PROBLEM,
+ "Bad mark value `%s'", optarg);
+ return 0;
+ }
+ info->mark = info->mask = i;
+ if (*flags)
+ exit_error(PARAMETER_PROBLEM,
+ "MARK: Can't specify --or-mark twice");
+ *flags = 1;
+ break;
+ default:
+ return 0;
+ }
+ return 1;
+}
+
+static void final_check(unsigned int flags)
+{
+ if (!flags)
+ exit_error(PARAMETER_PROBLEM, "MARK: Parameter --set-mark/--and-mark/--or-mark is required");
+}
+
+static void print(const struct arpt_arp *ip,
+ const struct arpt_entry_target *target, int numeric)
+{
+ struct xt_mark_tginfo2 *info = (struct xt_mark_tginfo2 *)(target->data);
+
+ if (info->mark == 0)
+ printf("--and-mark %x", (unsigned int)(uint32_t)~info->mask);
+ else if (info->mark == info->mask)
+ printf("--or-mark %x", info->mark);
+ else
+ printf("--set-mark %x", info->mark);
+}
+
+static void save(const struct arpt_arp *ip, const struct arpt_entry_target *target)
+{
+}
+
+static struct arptables_target mark = {
+ .next = NULL,
+ .name = "MARK",
+ .version = ARPTABLES_VERSION,
+ .size = ARPT_ALIGN(sizeof(struct xt_mark_tginfo2)),
+ .userspacesize = ARPT_ALIGN(sizeof(struct xt_mark_tginfo2)),
+ .revision = 2,
+ .help = help,
+ .init = init,
+ .parse = parse,
+ .final_check = final_check,
+ .print = print,
+ .save = save,
+ .extra_opts = opts
+};
+
+static void _init(void) __attribute__ ((constructor));
+static void _init(void)
+{
+ register_target(&mark);
+}