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Vector Packet Processing
ip_init.c
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1 /*
2  * Copyright (c) 2015 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  * ip/ip_init.c: ip generic initialization
17  *
18  * Copyright (c) 2008 Eliot Dresselhaus
19  *
20  * Permission is hereby granted, free of charge, to any person obtaining
21  * a copy of this software and associated documentation files (the
22  * "Software"), to deal in the Software without restriction, including
23  * without limitation the rights to use, copy, modify, merge, publish,
24  * distribute, sublicense, and/or sell copies of the Software, and to
25  * permit persons to whom the Software is furnished to do so, subject to
26  * the following conditions:
27  *
28  * The above copyright notice and this permission notice shall be
29  * included in all copies or substantial portions of the Software.
30  *
31  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
32  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
33  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
34  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
35  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
36  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
37  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
38  */
39 
40 #include <vnet/ip/ip.h>
41 
43 
46 {
47  ip_main_t *im = &ip_main;
48  clib_error_t *error = 0;
49 
50  memset (im, 0, sizeof (im[0]));
51 
52  {
54  u32 i;
55 
56 #define ip_protocol(n,s) \
57 do { \
58  vec_add2 (im->protocol_infos, pi, 1); \
59  pi->protocol = n; \
60  pi->name = (u8 *) #s; \
61 } while (0);
62 
63 #include "protocols.def"
64 
65 #undef ip_protocol
66 
68  for (i = 0; i < vec_len (im->protocol_infos); i++)
69  {
70  pi = im->protocol_infos + i;
71 
74  }
75  }
76 
77  {
79  u32 i;
80  static char *port_names[] = {
81 #define ip_port(s,n) #s,
82 #include "ports.def"
83 #undef ip_port
84  };
85  static u16 ports[] = {
86 #define ip_port(s,n) n,
87 #include "ports.def"
88 #undef ip_port
89  };
90 
91  vec_resize (im->port_infos, ARRAY_LEN (port_names));
92  im->port_info_by_name = hash_create_string (0, sizeof (uword));
93 
94  for (i = 0; i < vec_len (im->port_infos); i++)
95  {
96  pi = im->port_infos + i;
97  pi->port = clib_host_to_net_u16 (ports[i]);
98  pi->name = (u8 *) port_names[i];
99  hash_set_mem (im->port_info_by_name, pi->name, i);
100  hash_set (im->port_info_by_port, pi->port, i);
101  }
102  }
103 
104  if ((error = vlib_call_init_function (vm, vnet_main_init)))
105  return error;
106 
107  if ((error = vlib_call_init_function (vm, ip4_init)))
108  return error;
109 
110  if ((error = vlib_call_init_function (vm, ip6_init)))
111  return error;
112 
113  if ((error = vlib_call_init_function (vm, icmp4_init)))
114  return error;
115 
116  if ((error = vlib_call_init_function (vm, icmp6_init)))
117  return error;
118 
119  if ((error = vlib_call_init_function (vm, ip6_hop_by_hop_init)))
120  return error;
121 
122  if ((error = vlib_call_init_function (vm, udp_local_init)))
123  return error;
124 
125  if ((error = vlib_call_init_function (vm, udp_init)))
126  return error;
127 
128  if ((error = vlib_call_init_function (vm, ip_classify_init)))
129  return error;
130 
131  if ((error = vlib_call_init_function (vm, input_acl_init)))
132  return error;
133 
135  return error;
136 
137  if ((error = vlib_call_init_function (vm, flow_classify_init)))
138  return error;
139 
140  return error;
141 }
142 
144 
145 
146 /*
147  * fd.io coding-style-patch-verification: ON
148  *
149  * Local Variables:
150  * eval: (c-set-style "gnu")
151  * End:
152  */
uword * protocol_info_by_name
Definition: ip.h:116
uword * protocol_info_by_protocol
Definition: ip.h:112
#define hash_set(h, key, value)
Definition: hash.h:254
static clib_error_t * ip_classify_init(vlib_main_t *vm)
Definition: ip_classify.c:360
sll srl srl sll sra u16x4 i
Definition: vector_sse2.h:343
clib_error_t * udp_local_init(vlib_main_t *vm)
Definition: udp_local.c:604
uword * port_info_by_name
Definition: ip.h:125
static clib_error_t * udp_init(vlib_main_t *vm)
Definition: udp.c:291
clib_error_t * vnet_main_init(vlib_main_t *vm)
Definition: misc.c:73
static clib_error_t * ip6_init(vlib_main_t *vm)
Definition: ip6_input.c:349
#define hash_set_mem(h, key, value)
Definition: hash.h:274
Definition: ip.h:106
ip_protocol_t protocol
Definition: ip.h:75
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:111
static clib_error_t * flow_classify_init(vlib_main_t *vm)
static clib_error_t * ip4_init(vlib_main_t *vm)
Definition: ip4_input.c:464
static clib_error_t * icmp6_init(vlib_main_t *vm)
Definition: icmp6.c:813
#define vec_resize(V, N)
Resize a vector (no header, unspecified alignment) Add N elements to end of given vector V...
Definition: vec.h:241
#define vlib_call_init_function(vm, x)
Definition: init.h:162
static clib_error_t * policer_classify_init(vlib_main_t *vm)
Definition: node_funcs.c:921
#define hash_create_string(elts, value_bytes)
Definition: hash.h:652
uword * port_info_by_port
Definition: ip.h:122
static clib_error_t * icmp4_init(vlib_main_t *vm)
Definition: icmp4.c:741
static clib_error_t * ip6_hop_by_hop_init(vlib_main_t *vm)
Definition: ip6_forward.c:2770
ip_protocol_info_t * protocol_infos
Definition: ip.h:109
vlib_main_t * vm
Definition: buffer.c:276
ip_main_t ip_main
Definition: ip_init.c:42
#define ARRAY_LEN(x)
Definition: clib.h:59
clib_error_t * ip_main_init(vlib_main_t *vm)
Definition: ip_init.c:45
unsigned int u32
Definition: types.h:88
u64 uword
Definition: types.h:112
unsigned short u16
Definition: types.h:57
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
unsigned char u8
Definition: types.h:56
u8 * name
Definition: ip.h:72
tcp_udp_port_info_t * port_infos
Definition: ip.h:119
clib_error_t * input_acl_init(vlib_main_t *vm)
Definition: input_acl.c:183