Line data Source code
1 : /*
2 : * srv6_end_m_gtp6_dt.c
3 : *
4 : * Copyright (c) 2019 Arrcus Inc and/or its affiliates.
5 : * Licensed under the Apache License, Version 2.0 (the "License");
6 : * you may not use this file except in compliance with the License.
7 : * You may obtain a copy of the License at:
8 : *
9 : * http://www.apache.org/licenses/LICENSE-2.0
10 : *
11 : * Unless required by applicable law or agreed to in writing, software
12 : * distributed under the License is distributed on an "AS IS" BASIS,
13 : * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 : * See the License for the specific language governing permissions and
15 : * limitations under the License.
16 : */
17 :
18 : #include <vnet/vnet.h>
19 : #include <vnet/adj/adj.h>
20 : #include <vnet/fib/fib_table.h>
21 : #include <vnet/plugin/plugin.h>
22 : #include <vpp/app/version.h>
23 : #include <srv6-mobile/mobile.h>
24 :
25 : srv6_end_main_v6_dt_t srv6_end_main_v6_dt;
26 :
27 : static void
28 0 : clb_dpo_lock_srv6_end_m_gtp6_dt (dpo_id_t * dpo)
29 : {
30 0 : }
31 :
32 : static void
33 0 : clb_dpo_unlock_srv6_end_m_gtp6_dt (dpo_id_t * dpo)
34 : {
35 0 : }
36 :
37 : static u8 *
38 0 : clb_dpo_format_srv6_end_m_gtp6_dt (u8 * s, va_list * args)
39 : {
40 0 : index_t index = va_arg (*args, index_t);
41 0 : CLIB_UNUSED (u32 indent) = va_arg (*args, u32);
42 :
43 0 : return (format (s, "SR: dynamic_proxy_index:[%u]", index));
44 : }
45 :
46 : const static dpo_vft_t dpo_vft = {
47 : .dv_lock = clb_dpo_lock_srv6_end_m_gtp6_dt,
48 : .dv_unlock = clb_dpo_unlock_srv6_end_m_gtp6_dt,
49 : .dv_format = clb_dpo_format_srv6_end_m_gtp6_dt,
50 : };
51 :
52 : const static char *const srv6_end_m_gtp6_dt_nodes[] = {
53 : "srv6-end-m-gtp6-dt",
54 : NULL,
55 : };
56 :
57 : const static char *const *const dpo_nodes[DPO_PROTO_NUM] = {
58 : [DPO_PROTO_IP6] = srv6_end_m_gtp6_dt_nodes,
59 : };
60 :
61 : static u8 fn_name[] = "SRv6-End.M.GTP6.DT-plugin";
62 : static u8 keyword_str[] = "end.m.gtp6.dt";
63 : static u8 def_str[] = "Endpoint function with DT for IPv6/GTP tunnel";
64 : static u8 param_str[] = "fib-index <index> [local-fib-table <index>]";
65 :
66 : static u8 *
67 0 : clb_format_srv6_end_m_gtp6_dt (u8 * s, va_list * args)
68 : {
69 0 : srv6_end_gtp6_dt_param_t *ls_mem = va_arg (*args, void *);
70 :
71 0 : s = format (s, "SRv6 End gtp6.dt\n\t");
72 :
73 0 : if (ls_mem->type == SRV6_GTP6_DT4)
74 0 : s = format (s, " Type GTP6.DT4 fib-table %u\n", ls_mem->fib4_index);
75 0 : else if (ls_mem->type == SRV6_GTP6_DT6)
76 0 : s = format (s, " Type GTP6.DT6, fib-table %u, local-fib-table %u\n",
77 : ls_mem->fib6_index, ls_mem->local_fib_index);
78 0 : else if (ls_mem->type == SRV6_GTP6_DT46)
79 0 : s = format (s, " Type GTP6.DT46, fib-table %u, local-fib-table %u\n",
80 : ls_mem->fib6_index, ls_mem->local_fib_index);
81 : else
82 0 : s = format (s, "\n");
83 :
84 0 : return s;
85 : }
86 :
87 : static uword
88 0 : clb_unformat_srv6_end_m_gtp6_dt (unformat_input_t * input, va_list * args)
89 : {
90 0 : void **plugin_mem_p = va_arg (*args, void **);
91 : srv6_end_gtp6_dt_param_t *ls_mem;
92 0 : u32 fib_index = 0;
93 0 : u32 local_fib_index = 0;
94 : u32 type;
95 :
96 0 : if (unformat (input, "end.m.gtp6.dt4 fib-table %u", &fib_index))
97 : {
98 0 : type = SRV6_GTP6_DT4;
99 : }
100 0 : else if (unformat (input, "end.m.gtp6.dt6 fib-table %u local-fib-table %u",
101 : &fib_index, &local_fib_index))
102 : {
103 0 : type = SRV6_GTP6_DT6;
104 : }
105 0 : else if (unformat (input, "end.m.gtp6.dt46 fib-table %u local-fib-table %u",
106 : &fib_index, &local_fib_index))
107 : {
108 0 : type = SRV6_GTP6_DT46;
109 : }
110 : else
111 : {
112 0 : return 0;
113 : }
114 :
115 0 : ls_mem = clib_mem_alloc (sizeof *ls_mem);
116 0 : clib_memset (ls_mem, 0, sizeof *ls_mem);
117 0 : *plugin_mem_p = ls_mem;
118 :
119 0 : ls_mem->fib4_index = fib_table_find (FIB_PROTOCOL_IP4, fib_index);
120 0 : ls_mem->fib6_index = fib_table_find (FIB_PROTOCOL_IP6, fib_index);
121 :
122 0 : if (type == SRV6_GTP6_DT6 || type == SRV6_GTP6_DT46)
123 : {
124 0 : ls_mem->local_fib_index =
125 0 : fib_table_find (FIB_PROTOCOL_IP6, local_fib_index);
126 : }
127 :
128 0 : ls_mem->type = type;
129 :
130 0 : return 1;
131 : }
132 :
133 : static int
134 0 : clb_creation_srv6_end_m_gtp6_dt (ip6_sr_localsid_t * localsid)
135 : {
136 0 : return 0;
137 : }
138 :
139 : static int
140 0 : clb_removal_srv6_end_m_gtp6_dt (ip6_sr_localsid_t * localsid)
141 : {
142 : srv6_end_gtp6_dt_param_t *ls_mem;
143 :
144 0 : ls_mem = localsid->plugin_mem;
145 :
146 0 : clib_mem_free (ls_mem);
147 :
148 0 : return 0;
149 : }
150 :
151 : static clib_error_t *
152 575 : srv6_end_m_gtp6_dt_init (vlib_main_t * vm)
153 : {
154 575 : srv6_end_main_v6_dt_t *sm = &srv6_end_main_v6_dt;
155 : dpo_type_t dpo_type;
156 : vlib_node_t *node;
157 : int rc;
158 :
159 575 : sm->vlib_main = vm;
160 575 : sm->vnet_main = vnet_get_main ();
161 :
162 575 : node = vlib_get_node_by_name (vm, (u8 *) "srv6-end-m-gtp6-dt");
163 575 : sm->end_m_gtp6_dt_node_index = node->index;
164 :
165 575 : node = vlib_get_node_by_name (vm, (u8 *) "error-drop");
166 575 : sm->error_node_index = node->index;
167 :
168 575 : dpo_type = dpo_register_new_type (&dpo_vft, dpo_nodes);
169 :
170 575 : rc = sr_localsid_register_function (vm, fn_name, keyword_str, def_str, param_str, 128, //prefix len
171 : &dpo_type,
172 : clb_format_srv6_end_m_gtp6_dt,
173 : clb_unformat_srv6_end_m_gtp6_dt,
174 : clb_creation_srv6_end_m_gtp6_dt,
175 : clb_removal_srv6_end_m_gtp6_dt);
176 575 : if (rc < 0)
177 0 : clib_error_return (0, "SRv6 Endpoint GTP6.DT LocalSID function"
178 : "couldn't be registered");
179 575 : return 0;
180 : }
181 :
182 : /* *INDENT-OFF* */
183 14399 : VNET_FEATURE_INIT (srv6_end_m_gtp6_dt, static) =
184 : {
185 : .arc_name = "ip6-unicast",
186 : .node_name = "srv6-end-m-gtp6-dt",
187 : .runs_before = 0,
188 : };
189 :
190 4031 : VLIB_INIT_FUNCTION (srv6_end_m_gtp6_dt_init);
191 : /* *INDENT-ON* */
192 :
193 : /*
194 : * fd.io coding-style-patch-verification: ON
195 : *
196 : * Local Variables:
197 : * eval: (c-set-style "gnu")
198 : * End:
199 : */
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