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authorNeale Ranns <nranns@cisco.com>2017-07-31 02:30:50 -0700
committerDamjan Marion <dmarion.lists@gmail.com>2017-10-10 16:42:39 +0000
commitd91c1dbdb31f80db7d967f2f57c43d0a81d65297 (patch)
treec7d323cd6980b6fc7c5d96157607a07e51efa468 /src/vnet/policer/police_inlines.h
parent268e64e312257b0ab36e0d5b9124cc3f2a1841a7 (diff)
punt and drop features:
- new IPv4 and IPv6 feature arcs on the punt and drop nodes - new features: - redirect punted traffic to an interface and nexthop - police punted traffic. Change-Id: I53be8bf4e06545add8a3619e462de5ffedd0a95c Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/policer/police_inlines.h')
-rw-r--r--src/vnet/policer/police_inlines.h89
1 files changed, 89 insertions, 0 deletions
diff --git a/src/vnet/policer/police_inlines.h b/src/vnet/policer/police_inlines.h
new file mode 100644
index 00000000000..64386e6f1bf
--- /dev/null
+++ b/src/vnet/policer/police_inlines.h
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+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef __POLICE_INLINES_H__
+#define __POLICE_INLINES_H__
+
+#include <vnet/policer/police.h>
+#include <vnet/vnet.h>
+#include <vnet/ip/ip.h>
+
+#define IP4_NON_DSCP_BITS 0x03
+#define IP4_DSCP_SHIFT 2
+#define IP6_NON_DSCP_BITS 0xf03fffff
+#define IP6_DSCP_SHIFT 22
+
+static_always_inline void
+vnet_policer_mark (vlib_buffer_t * b, u8 dscp)
+{
+ ethernet_header_t *eh;
+ ip4_header_t *ip4h;
+ ip6_header_t *ip6h;
+ u16 type;
+
+ eh = (ethernet_header_t *) b->data;
+ type = clib_net_to_host_u16 (eh->type);
+
+ if (PREDICT_TRUE (type == ETHERNET_TYPE_IP4))
+ {
+ ip4h = (ip4_header_t *) & (b->data[sizeof (ethernet_header_t)]);;
+ ip4h->tos &= IP4_NON_DSCP_BITS;
+ ip4h->tos |= dscp << IP4_DSCP_SHIFT;
+ ip4h->checksum = ip4_header_checksum (ip4h);
+ }
+ else
+ {
+ if (PREDICT_TRUE (type == ETHERNET_TYPE_IP6))
+ {
+ ip6h = (ip6_header_t *) & (b->data[sizeof (ethernet_header_t)]);
+ ip6h->ip_version_traffic_class_and_flow_label &=
+ clib_host_to_net_u32 (IP6_NON_DSCP_BITS);
+ ip6h->ip_version_traffic_class_and_flow_label |=
+ clib_host_to_net_u32 (dscp << IP6_DSCP_SHIFT);
+ }
+ }
+}
+
+static_always_inline u8
+vnet_policer_police (vlib_main_t * vm,
+ vlib_buffer_t * b,
+ u32 policer_index,
+ u64 time_in_policer_periods,
+ policer_result_e packet_color)
+{
+ u8 act;
+ u32 len;
+ u32 col;
+ policer_read_response_type_st *pol;
+ vnet_policer_main_t *pm = &vnet_policer_main;
+
+ len = vlib_buffer_length_in_chain (vm, b);
+ pol = &pm->policers[policer_index];
+ col = vnet_police_packet (pol, len, packet_color, time_in_policer_periods);
+ act = pol->action[col];
+ if (PREDICT_TRUE (act == SSE2_QOS_ACTION_MARK_AND_TRANSMIT))
+ vnet_policer_mark (b, pol->mark_dscp[col]);
+
+ return act;
+}
+
+#endif // __POLICE_INLINES_H__
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */