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Vector Packet Processing
bfd_protocol.c
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1 /*
2  * Copyright (c) 2011-2016 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  * @file
17  * @brief BFD protocol implementation
18  */
19 #include <vnet/bfd/bfd_protocol.h>
20 
21 u8
22 bfd_pkt_get_version (const bfd_pkt_t * pkt)
23 {
24  return pkt->head.vers_diag >> 5;
25 }
26 
27 void
28 bfd_pkt_set_version (bfd_pkt_t * pkt, int version)
29 {
30  pkt->head.vers_diag =
31  (version << 5) | (pkt->head.vers_diag & ((1 << 5) - 1));
32 }
33 
34 u8
35 bfd_pkt_get_diag_code (const bfd_pkt_t * pkt)
36 {
37  return pkt->head.vers_diag & ((1 << 5) - 1);
38 }
39 
40 void
41 bfd_pkt_set_diag_code (bfd_pkt_t * pkt, int value)
42 {
43  pkt->head.vers_diag =
44  (pkt->head.vers_diag & ~((1 << 5) - 1)) | (value & ((1 << 5) - 1));
45 }
46 
47 u8
48 bfd_pkt_get_state (const bfd_pkt_t * pkt)
49 {
50  return pkt->head.sta_flags >> 6;
51 }
52 
53 void
54 bfd_pkt_set_state (bfd_pkt_t * pkt, int value)
55 {
56  pkt->head.sta_flags = (value << 6) | (pkt->head.sta_flags & ((1 << 6) - 1));
57 }
58 
59 u8
60 bfd_pkt_get_poll (const bfd_pkt_t * pkt)
61 {
62  return (pkt->head.sta_flags >> 5) & 1;
63 }
64 
65 void
66 bfd_pkt_set_poll (bfd_pkt_t * pkt)
67 {
68  pkt->head.sta_flags |= 1 << 5;
69 }
70 
71 u8
72 bfd_pkt_get_final (const bfd_pkt_t * pkt)
73 {
74  return (pkt->head.sta_flags >> 4) & 1;
75 }
76 
77 void
78 bfd_pkt_set_final (bfd_pkt_t * pkt)
79 {
80  pkt->head.sta_flags |= 1 << 4;
81 }
82 
83 u8
85 {
86  return (pkt->head.sta_flags >> 3) & 1;
87 }
88 
89 #if 0
90 void
92 {
93  pkt->head.sta_flags |= 1 << 3;
94 }
95 #endif
96 
97 u8
98 bfd_pkt_get_auth_present (const bfd_pkt_t * pkt)
99 {
100  return (pkt->head.sta_flags >> 2) & 1;
101 }
102 
103 void
104 bfd_pkt_set_auth_present (bfd_pkt_t * pkt)
105 {
106  pkt->head.sta_flags |= 1 << 2;
107 }
108 
109 u8
110 bfd_pkt_get_demand (const bfd_pkt_t * pkt)
111 {
112  return (pkt->head.sta_flags >> 1) & 1;
113 }
114 
115 #if 0
116 void
117 bfd_pkt_set_demand (bfd_pkt_t * pkt)
118 {
119  pkt->head.sta_flags |= 1 << 1;
120 }
121 #endif
122 
123 u8
124 bfd_pkt_get_multipoint (const bfd_pkt_t * pkt)
125 {
126  return (pkt->head.sta_flags >> 0) & 1;
127 }
128 
129 #if 0
130 void
131 bfd_pkt_set_multipoint (bfd_pkt_t * pkt)
132 {
133  pkt->head.sta_flags |= 1 << 0;
134 }
135 #endif
136 
137 u32
139 {
140 #define F(t, l, n, s) \
141  if (auth_type == t) \
142  { \
143  return l; \
144  }
146 #undef F
147  return 0;
148 }
149 
150 const char *
152 {
153 #define F(t, l, n, s) \
154  if (auth_type == t) \
155  { \
156  return s; \
157  }
159 #undef F
160  return "UNKNOWN";
161 }
162 
163 const char *
165 {
166 #define F(n, t, s) \
167  case BFD_DIAG_CODE_NAME (t): \
168  return s;
169  switch (diag)
170  {
172  return "UNKNOWN";
173 #undef F
174 }
175 
176 const char *
178 {
179 #define F(n, t, s) \
180  case BFD_STATE_NAME (t): \
181  return s;
182  switch (state)
183  {
185  return "UNKNOWN";
186 #undef F
187 }
188 
189 /*
190  * fd.io coding-style-patch-verification: ON
191  *
192  * Local Variables:
193  * eval: (c-set-style "gnu")
194  * End:
195  */
u8 bfd_pkt_get_auth_present(const bfd_pkt_t *pkt)
Definition: bfd_protocol.c:98
void bfd_pkt_set_poll(bfd_pkt_t *pkt)
Definition: bfd_protocol.c:66
u8 bfd_pkt_get_diag_code(const bfd_pkt_t *pkt)
Definition: bfd_protocol.c:35
void bfd_pkt_set_demand(bfd_pkt_t *pkt)
bfd_diag_code_e
Definition: bfd_protocol.h:177
u8 bfd_pkt_get_version(const bfd_pkt_t *pkt)
Definition: bfd_protocol.c:22
bfd_auth_type_e
Definition: bfd_protocol.h:36
u8 bfd_pkt_get_control_plane_independent(const bfd_pkt_t *pkt)
Definition: bfd_protocol.c:84
void bfd_pkt_set_auth_present(bfd_pkt_t *pkt)
Definition: bfd_protocol.c:104
u8 bfd_pkt_get_final(const bfd_pkt_t *pkt)
Definition: bfd_protocol.c:72
void bfd_pkt_set_final(bfd_pkt_t *pkt)
Definition: bfd_protocol.c:78
const char * bfd_auth_type_str(bfd_auth_type_e auth_type)
Definition: bfd_protocol.c:151
u8 bfd_pkt_get_multipoint(const bfd_pkt_t *pkt)
Definition: bfd_protocol.c:124
BFD protocol declarations.
u32 bfd_max_key_len_for_auth_type(bfd_auth_type_e auth_type)
get the maximum length of key data for given auth type
Definition: bfd_protocol.c:138
const char * bfd_diag_code_string(bfd_diag_code_e diag)
Definition: bfd_protocol.c:164
u8 bfd_pkt_get_demand(const bfd_pkt_t *pkt)
Definition: bfd_protocol.c:110
bfd_state_e
Definition: bfd_protocol.h:195
void bfd_pkt_set_version(bfd_pkt_t *pkt, int version)
Definition: bfd_protocol.c:28
unsigned int u32
Definition: types.h:88
vhost_vring_state_t state
Definition: vhost-user.h:83
u8 bfd_pkt_get_state(const bfd_pkt_t *pkt)
Definition: bfd_protocol.c:48
unsigned char u8
Definition: types.h:56
void bfd_pkt_set_multipoint(bfd_pkt_t *pkt)
void bfd_pkt_set_control_plane_independent(bfd_pkt_t *pkt)
u8 bfd_pkt_get_poll(const bfd_pkt_t *pkt)
Definition: bfd_protocol.c:60
#define F(t, l, n, s)
const char * bfd_state_string(bfd_state_e state)
Definition: bfd_protocol.c:177
void bfd_pkt_set_state(bfd_pkt_t *pkt, int value)
Definition: bfd_protocol.c:54
void bfd_pkt_set_diag_code(bfd_pkt_t *pkt, int value)
Definition: bfd_protocol.c:41