xref: /openbmc/linux/include/uapi/linux/seg6_local.h (revision 848f3c0d)
1 /*
2  *  SR-IPv6 implementation
3  *
4  *  Author:
5  *  David Lebrun <david.lebrun@uclouvain.be>
6  *
7  *
8  *  This program is free software; you can redistribute it and/or
9  *      modify it under the terms of the GNU General Public License
10  *      as published by the Free Software Foundation; either version
11  *      2 of the License, or (at your option) any later version.
12  */
13 
14 #ifndef _UAPI_LINUX_SEG6_LOCAL_H
15 #define _UAPI_LINUX_SEG6_LOCAL_H
16 
17 #include <linux/seg6.h>
18 
19 enum {
20 	SEG6_LOCAL_UNSPEC,
21 	SEG6_LOCAL_ACTION,
22 	SEG6_LOCAL_SRH,
23 	SEG6_LOCAL_TABLE,
24 	SEG6_LOCAL_NH4,
25 	SEG6_LOCAL_NH6,
26 	SEG6_LOCAL_IIF,
27 	SEG6_LOCAL_OIF,
28 	SEG6_LOCAL_BPF,
29 	SEG6_LOCAL_VRFTABLE,
30 	SEG6_LOCAL_COUNTERS,
31 	SEG6_LOCAL_FLAVORS,
32 	__SEG6_LOCAL_MAX,
33 };
34 #define SEG6_LOCAL_MAX (__SEG6_LOCAL_MAX - 1)
35 
36 enum {
37 	SEG6_LOCAL_ACTION_UNSPEC	= 0,
38 	/* node segment */
39 	SEG6_LOCAL_ACTION_END		= 1,
40 	/* adjacency segment (IPv6 cross-connect) */
41 	SEG6_LOCAL_ACTION_END_X		= 2,
42 	/* lookup of next seg NH in table */
43 	SEG6_LOCAL_ACTION_END_T		= 3,
44 	/* decap and L2 cross-connect */
45 	SEG6_LOCAL_ACTION_END_DX2	= 4,
46 	/* decap and IPv6 cross-connect */
47 	SEG6_LOCAL_ACTION_END_DX6	= 5,
48 	/* decap and IPv4 cross-connect */
49 	SEG6_LOCAL_ACTION_END_DX4	= 6,
50 	/* decap and lookup of DA in v6 table */
51 	SEG6_LOCAL_ACTION_END_DT6	= 7,
52 	/* decap and lookup of DA in v4 table */
53 	SEG6_LOCAL_ACTION_END_DT4	= 8,
54 	/* binding segment with insertion */
55 	SEG6_LOCAL_ACTION_END_B6	= 9,
56 	/* binding segment with encapsulation */
57 	SEG6_LOCAL_ACTION_END_B6_ENCAP	= 10,
58 	/* binding segment with MPLS encap */
59 	SEG6_LOCAL_ACTION_END_BM	= 11,
60 	/* lookup last seg in table */
61 	SEG6_LOCAL_ACTION_END_S		= 12,
62 	/* forward to SR-unaware VNF with static proxy */
63 	SEG6_LOCAL_ACTION_END_AS	= 13,
64 	/* forward to SR-unaware VNF with masquerading */
65 	SEG6_LOCAL_ACTION_END_AM	= 14,
66 	/* custom BPF action */
67 	SEG6_LOCAL_ACTION_END_BPF	= 15,
68 	/* decap and lookup of DA in v4 or v6 table */
69 	SEG6_LOCAL_ACTION_END_DT46	= 16,
70 
71 	__SEG6_LOCAL_ACTION_MAX,
72 };
73 
74 #define SEG6_LOCAL_ACTION_MAX (__SEG6_LOCAL_ACTION_MAX - 1)
75 
76 enum {
77 	SEG6_LOCAL_BPF_PROG_UNSPEC,
78 	SEG6_LOCAL_BPF_PROG,
79 	SEG6_LOCAL_BPF_PROG_NAME,
80 	__SEG6_LOCAL_BPF_PROG_MAX,
81 };
82 
83 #define SEG6_LOCAL_BPF_PROG_MAX (__SEG6_LOCAL_BPF_PROG_MAX - 1)
84 
85 /* SRv6 Behavior counters are encoded as netlink attributes guaranteeing the
86  * correct alignment.
87  * Each counter is identified by a different attribute type (i.e.
88  * SEG6_LOCAL_CNT_PACKETS).
89  *
90  * - SEG6_LOCAL_CNT_PACKETS: identifies a counter that counts the number of
91  *   packets that have been CORRECTLY processed by an SRv6 Behavior instance
92  *   (i.e., packets that generate errors or are dropped are NOT counted).
93  *
94  * - SEG6_LOCAL_CNT_BYTES: identifies a counter that counts the total amount
95  *   of traffic in bytes of all packets that have been CORRECTLY processed by
96  *   an SRv6 Behavior instance (i.e., packets that generate errors or are
97  *   dropped are NOT counted).
98  *
99  * - SEG6_LOCAL_CNT_ERRORS: identifies a counter that counts the number of
100  *   packets that have NOT been properly processed by an SRv6 Behavior instance
101  *   (i.e., packets that generate errors or are dropped).
102  */
103 enum {
104 	SEG6_LOCAL_CNT_UNSPEC,
105 	SEG6_LOCAL_CNT_PAD,		/* pad for 64 bits values */
106 	SEG6_LOCAL_CNT_PACKETS,
107 	SEG6_LOCAL_CNT_BYTES,
108 	SEG6_LOCAL_CNT_ERRORS,
109 	__SEG6_LOCAL_CNT_MAX,
110 };
111 
112 #define SEG6_LOCAL_CNT_MAX (__SEG6_LOCAL_CNT_MAX - 1)
113 
114 /* SRv6 End* Flavor attributes */
115 enum {
116 	SEG6_LOCAL_FLV_UNSPEC,
117 	SEG6_LOCAL_FLV_OPERATION,
118 	SEG6_LOCAL_FLV_LCBLOCK_BITS,
119 	SEG6_LOCAL_FLV_LCNODE_FN_BITS,
120 	__SEG6_LOCAL_FLV_MAX,
121 };
122 
123 #define SEG6_LOCAL_FLV_MAX (__SEG6_LOCAL_FLV_MAX - 1)
124 
125 /* Designed flavor operations for SRv6 End* Behavior */
126 enum {
127 	SEG6_LOCAL_FLV_OP_UNSPEC,
128 	SEG6_LOCAL_FLV_OP_PSP,
129 	SEG6_LOCAL_FLV_OP_USP,
130 	SEG6_LOCAL_FLV_OP_USD,
131 	SEG6_LOCAL_FLV_OP_NEXT_CSID,
132 	__SEG6_LOCAL_FLV_OP_MAX
133 };
134 
135 #define SEG6_LOCAL_FLV_OP_MAX (__SEG6_LOCAL_FLV_OP_MAX - 1)
136 
137 #endif
138