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Vector Packet Processing
adj_internal.h
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1 /*
2  * Copyright (c) 2016 Cisco and/or its affiliates.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef __ADJ_INTERNAL_H__
17 #define __ADJ_INTERNAL_H__
18 
19 #include <vnet/adj/adj.h>
20 #include <vnet/adj/adj_mcast.h>
21 #include <vnet/ip/ip.h>
22 #include <vnet/mpls/mpls.h>
23 #include <vnet/adj/adj_l2.h>
24 #include <vnet/adj/adj_nsh.h>
25 
26 /**
27  * big switch to turn on Adjacency debugging
28  */
29 #undef ADJ_DEBUG
30 
31 /*
32  * Debug macro
33  */
34 #ifdef ADJ_DEBUG
35 #define ADJ_DBG(_adj, _fmt, _args...) \
36 { \
37  clib_warning("adj:[%d:%p]:" _fmt, \
38  _adj - adj_pool, _adj, \
39  ##_args); \
40 }
41 #else
42 #define ADJ_DBG(_e, _fmt, _args...)
43 #endif
44 
45 static inline u32
47 {
48  switch (linkt) {
49  case VNET_LINK_IP4:
50  return (ip4_rewrite_node.index);
51  case VNET_LINK_IP6:
52  return (ip6_rewrite_node.index);
53  case VNET_LINK_MPLS:
54  return (mpls_output_node.index);
55  case VNET_LINK_ETHERNET:
56  return (adj_l2_rewrite_node.index);
57  case VNET_LINK_NSH:
58  return (adj_nsh_rewrite_node.index);
59  case VNET_LINK_ARP:
60  break;
61  }
62  ASSERT(0);
63  return (0);
64 }
65 
66 static inline vnet_link_t
68 {
69  switch (fp)
70  {
71  case FIB_PROTOCOL_IP4:
72  return (VNET_LINK_ARP);
73  case FIB_PROTOCOL_IP6:
74  return (VNET_LINK_IP6);
75  case FIB_PROTOCOL_MPLS:
76  return (VNET_LINK_MPLS);
77  }
78  return (0);
79 }
80 
81 /**
82  * @brief
83  * Get a pointer to an adjacency object from its index
84  */
85 static inline adj_index_t
87 {
88  return (adj - adj_pool);
89 }
90 
92  ip_lookup_next_t adj_next_index,
93  u32 complete_next_index,
94  u32 next_index,
95  u8 *rewrite);
96 extern void adj_midchain_setup(adj_index_t adj_index,
99 
100 extern ip_adjacency_t * adj_alloc(fib_protocol_t proto);
101 
102 extern void adj_nbr_remove(adj_index_t ai,
103  fib_protocol_t nh_proto,
104  vnet_link_t link_type,
105  const ip46_address_t *nh_addr,
106  u32 sw_if_index);
107 extern void adj_glean_remove(fib_protocol_t proto,
108  u32 sw_if_index);
109 extern void adj_mcast_remove(fib_protocol_t proto,
110  u32 sw_if_index);
111 
112 extern u32 adj_dpo_get_urpf(const dpo_id_t *dpo);
113 
114 #endif
u32 adj_dpo_get_urpf(const dpo_id_t *dpo)
Definition: adj.c:212
ip_adjacency_t * adj_pool
The global adjacnecy pool.
Definition: adj.c:30
void adj_glean_remove(fib_protocol_t proto, u32 sw_if_index)
Definition: adj_glean.c:92
IP unicast adjacency.
Definition: adj.h:174
vlib_node_registration_t ip6_rewrite_node
(constructor) VLIB_REGISTER_NODE (ip6_rewrite_node)
Definition: ip6_forward.c:2426
vlib_node_registration_t adj_nsh_rewrite_node
(constructor) VLIB_REGISTER_NODE (adj_nsh_rewrite_node)
Definition: adj_nsh.c:166
void adj_nbr_update_rewrite_internal(ip_adjacency_t *adj, ip_lookup_next_t adj_next_index, u32 complete_next_index, u32 next_index, u8 *rewrite)
adj_nbr_update_rewrite_internal
Definition: adj_nbr.c:333
ip_lookup_next_t
An adjacency is a representation of an attached L3 peer.
Definition: adj.h:50
ip_adjacency_t * adj_alloc(fib_protocol_t proto)
Definition: adj.c:48
enum fib_protocol_t_ fib_protocol_t
Protocol Type.
enum ip_adjacency_flags_t_ adj_flags_t
Flags on an IP adjacency.
void adj_nbr_remove(adj_index_t ai, fib_protocol_t nh_proto, vnet_link_t link_type, const ip46_address_t *nh_addr, u32 sw_if_index)
Definition: adj_nbr.c:79
The identity of a DPO is a combination of its type and its instance number/index of objects of that t...
Definition: dpo.h:166
static adj_index_t adj_get_index(ip_adjacency_t *adj)
Get a pointer to an adjacency object from its index.
Definition: adj_internal.h:86
void adj_mcast_remove(fib_protocol_t proto, u32 sw_if_index)
Definition: adj_mcast.c:186
vlib_node_registration_t ip4_rewrite_node
(constructor) VLIB_REGISTER_NODE (ip4_rewrite_node)
Definition: ip4_forward.c:2775
u32 adj_index_t
An index for adjacencies.
Definition: adj_types.h:30
#define ASSERT(truth)
unsigned int u32
Definition: types.h:88
enum vnet_link_t_ vnet_link_t
Link Type: A description of the protocol of packets on the link.
static u32 adj_get_rewrite_node(vnet_link_t linkt)
Definition: adj_internal.h:46
void(* adj_midchain_fixup_t)(vlib_main_t *vm, struct ip_adjacency_t_ *adj, vlib_buffer_t *b0)
A function type for post-rewrite fixups on midchain adjacency.
Definition: adj.h:142
unsigned char u8
Definition: types.h:56
static vnet_link_t adj_fib_proto_2_nd(fib_protocol_t fp)
Definition: adj_internal.h:67
void adj_midchain_setup(adj_index_t adj_index, adj_midchain_fixup_t fixup, adj_flags_t flags)
adj_midchain_setup
Definition: adj_midchain.c:461
vlib_node_registration_t adj_l2_rewrite_node
(constructor) VLIB_REGISTER_NODE (adj_l2_rewrite_node)
Definition: adj_l2.c:164
u32 flags
Definition: vhost-user.h:77
vlib_node_registration_t mpls_output_node
(constructor) VLIB_REGISTER_NODE (mpls_output_node)
Definition: mpls_output.c:315