[PKT_SCHED]: Move tc_classify from pkt_cls.h to sch_api.c

tc_classiy has grown too big to be inlined, move it to sch_api.c
and export it.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 47 insertions, 0 deletions

diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 551d8587c226..14e0b98b66c5 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1099,6 +1099,52 @@ static int tc_dump_tclass(struct sk_buff *skb, struct netlink_callback *cb)
 	return skb->len;
 }
 
+/* Main classifier routine: scans classifier chain attached
+   to this qdisc, (optionally) tests for protocol and asks
+   specific classifiers.
+ */
+int tc_classify(struct sk_buff *skb, struct tcf_proto *tp,
+	struct tcf_result *res)
+{
+	int err = 0;
+	u32 protocol = skb->protocol;
+#ifdef CONFIG_NET_CLS_ACT
+	struct tcf_proto *otp = tp;
+reclassify:
+#endif
+	protocol = skb->protocol;
+
+	for ( ; tp; tp = tp->next) {
+		if ((tp->protocol == protocol ||
+			tp->protocol == __constant_htons(ETH_P_ALL)) &&
+			(err = tp->classify(skb, tp, res)) >= 0) {
+#ifdef CONFIG_NET_CLS_ACT
+			if ( TC_ACT_RECLASSIFY == err) {
+				__u32 verd = (__u32) G_TC_VERD(skb->tc_verd);
+				tp = otp;
+
+				if (MAX_REC_LOOP < verd++) {
+					printk("rule prio %d protocol %02x reclassify is buggy packet dropped\n",
+						tp->prio&0xffff, ntohs(tp->protocol));
+					return TC_ACT_SHOT;
+				}
+				skb->tc_verd = SET_TC_VERD(skb->tc_verd,verd);
+				goto reclassify;
+			} else {
+				if (skb->tc_verd) 
+					skb->tc_verd = SET_TC_VERD(skb->tc_verd,0);
+				return err;
+			}
+#else
+
+			return err;
+#endif
+		}
+
+	}
+	return -1;
+}
+
 int psched_us_per_tick = 1;
 int psched_tick_per_us = 1;
 
@@ -1246,3 +1292,4 @@ EXPORT_SYMBOL(qdisc_get_rtab);
 EXPORT_SYMBOL(qdisc_put_rtab);
 EXPORT_SYMBOL(register_qdisc);
 EXPORT_SYMBOL(unregister_qdisc);
+EXPORT_SYMBOL(tc_classify);