mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-31 00:52:05 +02:00
bc9fd85f57
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27457 3c298f89-4303-0410-b956-a3cf2f4a3e73
173 lines
4.7 KiB
Diff
173 lines
4.7 KiB
Diff
--- /dev/null
|
|
+++ b/net/sched/act_connmark.c
|
|
@@ -0,0 +1,137 @@
|
|
+/*
|
|
+ * 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, write to the Free Software Foundation, Inc., 59 Temple
|
|
+ * Place - Suite 330, Boston, MA 02111-1307 USA.
|
|
+ */
|
|
+
|
|
+#include <linux/module.h>
|
|
+#include <linux/init.h>
|
|
+#include <linux/kernel.h>
|
|
+#include <linux/skbuff.h>
|
|
+#include <linux/rtnetlink.h>
|
|
+#include <linux/pkt_cls.h>
|
|
+#include <linux/ip.h>
|
|
+#include <linux/ipv6.h>
|
|
+#include <net/netlink.h>
|
|
+#include <net/pkt_sched.h>
|
|
+#include <net/act_api.h>
|
|
+
|
|
+#include <net/netfilter/nf_conntrack.h>
|
|
+#include <net/netfilter/nf_conntrack_core.h>
|
|
+
|
|
+#define TCA_ACT_CONNMARK 20
|
|
+
|
|
+#define CONNMARK_TAB_MASK 3
|
|
+static struct tcf_common *tcf_connmark_ht[CONNMARK_TAB_MASK + 1];
|
|
+static u32 connmark_idx_gen;
|
|
+static DEFINE_RWLOCK(connmark_lock);
|
|
+
|
|
+static struct tcf_hashinfo connmark_hash_info = {
|
|
+ .htab = tcf_connmark_ht,
|
|
+ .hmask = CONNMARK_TAB_MASK,
|
|
+ .lock = &connmark_lock,
|
|
+};
|
|
+
|
|
+static int tcf_connmark(struct sk_buff *skb, struct tc_action *a,
|
|
+ struct tcf_result *res)
|
|
+{
|
|
+ struct nf_conn *c;
|
|
+ enum ip_conntrack_info ctinfo;
|
|
+ int proto;
|
|
+ int r;
|
|
+
|
|
+ if (skb->protocol == htons(ETH_P_IP)) {
|
|
+ if (skb->len < sizeof(struct iphdr))
|
|
+ goto out;
|
|
+ proto = PF_INET;
|
|
+ } else if (skb->protocol == htons(ETH_P_IPV6)) {
|
|
+ if (skb->len < sizeof(struct ipv6hdr))
|
|
+ goto out;
|
|
+ proto = PF_INET6;
|
|
+ } else
|
|
+ goto out;
|
|
+
|
|
+ r = nf_conntrack_in(dev_net(skb->dev), proto, NF_INET_PRE_ROUTING, skb);
|
|
+ if (r != NF_ACCEPT)
|
|
+ goto out;
|
|
+
|
|
+ c = nf_ct_get(skb, &ctinfo);
|
|
+ if (!c)
|
|
+ goto out;
|
|
+
|
|
+ skb->mark = c->mark;
|
|
+ nf_conntrack_put(skb->nfct);
|
|
+ skb->nfct = NULL;
|
|
+
|
|
+out:
|
|
+ return TC_ACT_PIPE;
|
|
+}
|
|
+
|
|
+static int tcf_connmark_init(struct nlattr *nla, struct nlattr *est,
|
|
+ struct tc_action *a, int ovr, int bind)
|
|
+{
|
|
+ struct tcf_common *pc;
|
|
+
|
|
+ pc = tcf_hash_create(0, est, a, sizeof(*pc), bind,
|
|
+ &connmark_idx_gen, &connmark_hash_info);
|
|
+ if (IS_ERR(pc))
|
|
+ return PTR_ERR(pc);
|
|
+
|
|
+ tcf_hash_insert(pc, &connmark_hash_info);
|
|
+
|
|
+ return ACT_P_CREATED;
|
|
+}
|
|
+
|
|
+static inline int tcf_connmark_cleanup(struct tc_action *a, int bind)
|
|
+{
|
|
+ if (a->priv)
|
|
+ return tcf_hash_release(a->priv, bind, &connmark_hash_info);
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static inline int tcf_connmark_dump(struct sk_buff *skb, struct tc_action *a,
|
|
+ int bind, int ref)
|
|
+{
|
|
+ return skb->len;
|
|
+}
|
|
+
|
|
+static struct tc_action_ops act_connmark_ops = {
|
|
+ .kind = "connmark",
|
|
+ .hinfo = &connmark_hash_info,
|
|
+ .type = TCA_ACT_CONNMARK,
|
|
+ .capab = TCA_CAP_NONE,
|
|
+ .owner = THIS_MODULE,
|
|
+ .act = tcf_connmark,
|
|
+ .dump = tcf_connmark_dump,
|
|
+ .cleanup = tcf_connmark_cleanup,
|
|
+ .init = tcf_connmark_init,
|
|
+ .walk = tcf_generic_walker,
|
|
+};
|
|
+
|
|
+MODULE_AUTHOR("Felix Fietkau <nbd@openwrt.org>");
|
|
+MODULE_DESCRIPTION("Connection tracking mark restoring");
|
|
+MODULE_LICENSE("GPL");
|
|
+
|
|
+static int __init connmark_init_module(void)
|
|
+{
|
|
+ return tcf_register_action(&act_connmark_ops);
|
|
+}
|
|
+
|
|
+static void __exit connmark_cleanup_module(void)
|
|
+{
|
|
+ tcf_unregister_action(&act_connmark_ops);
|
|
+}
|
|
+
|
|
+module_init(connmark_init_module);
|
|
+module_exit(connmark_cleanup_module);
|
|
--- a/net/sched/Kconfig
|
|
+++ b/net/sched/Kconfig
|
|
@@ -559,6 +559,19 @@ config NET_ACT_CSUM
|
|
To compile this code as a module, choose M here: the
|
|
module will be called act_csum.
|
|
|
|
+config NET_ACT_CONNMARK
|
|
+ tristate "Connection Tracking Marking"
|
|
+ depends on NET_CLS_ACT
|
|
+ depends on NF_CONNTRACK
|
|
+ depends on NF_CONNTRACK_MARK
|
|
+ ---help---
|
|
+ Say Y here to restore the connmark from a scheduler action
|
|
+
|
|
+ If unsure, say N.
|
|
+
|
|
+ To compile this code as a module, choose M here: the
|
|
+ module will be called act_connmark.
|
|
+
|
|
config NET_CLS_IND
|
|
bool "Incoming device classification"
|
|
depends on NET_CLS_U32 || NET_CLS_FW
|
|
--- a/net/sched/Makefile
|
|
+++ b/net/sched/Makefile
|
|
@@ -16,6 +16,7 @@ obj-$(CONFIG_NET_ACT_PEDIT) += act_pedit
|
|
obj-$(CONFIG_NET_ACT_SIMP) += act_simple.o
|
|
obj-$(CONFIG_NET_ACT_SKBEDIT) += act_skbedit.o
|
|
obj-$(CONFIG_NET_ACT_CSUM) += act_csum.o
|
|
+obj-$(CONFIG_NET_ACT_CONNMARK) += act_connmark.o
|
|
obj-$(CONFIG_NET_SCH_FIFO) += sch_fifo.o
|
|
obj-$(CONFIG_NET_SCH_CBQ) += sch_cbq.o
|
|
obj-$(CONFIG_NET_SCH_HTB) += sch_htb.o
|