3 * Copyright (C) 2020 Hiroki Shirokura, LINE Corporation
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the Free
7 * Software Foundation; either version 2 of the License, or (at your option)
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along
16 * with this program; see the file COPYING; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
27 #include <arpa/inet.h>
28 #include <netinet/in.h>
30 #define SRV6_MAX_SIDS 16
31 #define SRV6_LOCNAME_SIZE 256
37 #define sid2str(sid, str, size) \
38 inet_ntop(AF_INET6, sid, str, size)
46 enum seg6local_action_t
{
47 ZEBRA_SEG6_LOCAL_ACTION_UNSPEC
= 0,
48 ZEBRA_SEG6_LOCAL_ACTION_END
= 1,
49 ZEBRA_SEG6_LOCAL_ACTION_END_X
= 2,
50 ZEBRA_SEG6_LOCAL_ACTION_END_T
= 3,
51 ZEBRA_SEG6_LOCAL_ACTION_END_DX2
= 4,
52 ZEBRA_SEG6_LOCAL_ACTION_END_DX6
= 5,
53 ZEBRA_SEG6_LOCAL_ACTION_END_DX4
= 6,
54 ZEBRA_SEG6_LOCAL_ACTION_END_DT6
= 7,
55 ZEBRA_SEG6_LOCAL_ACTION_END_DT4
= 8,
56 ZEBRA_SEG6_LOCAL_ACTION_END_B6
= 9,
57 ZEBRA_SEG6_LOCAL_ACTION_END_B6_ENCAP
= 10,
58 ZEBRA_SEG6_LOCAL_ACTION_END_BM
= 11,
59 ZEBRA_SEG6_LOCAL_ACTION_END_S
= 12,
60 ZEBRA_SEG6_LOCAL_ACTION_END_AS
= 13,
61 ZEBRA_SEG6_LOCAL_ACTION_END_AM
= 14,
62 ZEBRA_SEG6_LOCAL_ACTION_END_BPF
= 15,
67 struct in6_addr segs
[256];
70 struct seg6local_context
{
77 char name
[SRV6_LOCNAME_SIZE
];
78 struct prefix_ipv6 prefix
;
81 * Bit length of SRv6 locator described in
82 * draft-ietf-bess-srv6-services-05#section-3.2.1
84 uint8_t block_bits_length
;
85 uint8_t node_bits_length
;
86 uint8_t function_bits_length
;
87 uint8_t argument_bits_length
;
96 DECLARE_QOBJ_TYPE(srv6_locator
);
98 struct srv6_locator_chunk
{
99 char locator_name
[SRV6_LOCNAME_SIZE
];
100 struct prefix_ipv6 prefix
;
103 * Bit length of SRv6 locator described in
104 * draft-ietf-bess-srv6-services-05#section-3.2.1
106 uint8_t block_bits_length
;
107 uint8_t node_bits_length
;
108 uint8_t function_bits_length
;
109 uint8_t argument_bits_length
;
112 * For Zclient communication values
120 struct nexthop_srv6
{
121 /* SRv6 localsid info for Endpoint-behaviour */
122 enum seg6local_action_t seg6local_action
;
123 struct seg6local_context seg6local_ctx
;
125 /* SRv6 Headend-behaviour */
126 struct in6_addr seg6_segs
;
129 static inline const char *seg6_mode2str(enum seg6_mode_t mode
)
143 static inline bool sid_same(
144 const struct in6_addr
*a
,
145 const struct in6_addr
*b
)
152 return memcmp(a
, b
, sizeof(struct in6_addr
)) == 0;
155 static inline bool sid_diff(
156 const struct in6_addr
*a
,
157 const struct in6_addr
*b
)
159 return !sid_same(a
, b
);
162 static inline bool sid_zero(
163 const struct in6_addr
*a
)
165 struct in6_addr zero
= {};
167 return sid_same(a
, &zero
);
170 static inline void *sid_copy(struct in6_addr
*dst
,
171 const struct in6_addr
*src
)
173 return memcpy(dst
, src
, sizeof(struct in6_addr
));
177 seg6local_action2str(uint32_t action
);
179 const char *seg6local_context2str(char *str
, size_t size
,
180 const struct seg6local_context
*ctx
,
183 int snprintf_seg6_segs(char *str
,
184 size_t size
, const struct seg6_segs
*segs
);
186 extern struct srv6_locator
*srv6_locator_alloc(const char *name
);
187 extern struct srv6_locator_chunk
*srv6_locator_chunk_alloc(void);
188 extern void srv6_locator_free(struct srv6_locator
*locator
);
189 extern void srv6_locator_chunk_free(struct srv6_locator_chunk
*chunk
);
190 json_object
*srv6_locator_chunk_json(const struct srv6_locator_chunk
*chunk
);
191 json_object
*srv6_locator_json(const struct srv6_locator
*loc
);