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:
9 * http://www.apache.org/licenses/LICENSE-2.0
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.
18 #include <vnet/vnet.h>
19 #include <vnet/adj/adj.h>
20 #include <vnet/plugin/plugin.h>
21 #include <vpp/app/version.h>
22 #include <srv6-mobile/mobile.h>
24 srv6_end_main_v4_t srv6_end_main_v4;
27 clb_dpo_lock_srv6_end_m_gtp4_e (dpo_id_t * dpo)
32 clb_dpo_unlock_srv6_end_m_gtp4_e (dpo_id_t * dpo)
37 clb_dpo_format_srv6_end_m_gtp4_e (u8 * s, va_list * args)
39 index_t index = va_arg (*args, index_t);
40 CLIB_UNUSED (u32 indent) = va_arg (*args, u32);
42 return (format (s, "SR: dynamic_proxy_index:[%u]", index));
45 const static dpo_vft_t dpo_vft = {
46 .dv_lock = clb_dpo_lock_srv6_end_m_gtp4_e,
47 .dv_unlock = clb_dpo_unlock_srv6_end_m_gtp4_e,
48 .dv_format = clb_dpo_format_srv6_end_m_gtp4_e,
51 const static char *const srv6_end_m_gtp4_e_nodes[] = {
56 const static char *const *const dpo_nodes[DPO_PROTO_NUM] = {
57 [DPO_PROTO_IP6] = srv6_end_m_gtp4_e_nodes,
60 static u8 fn_name[] = "SRv6-End.M.GTP4.E-plugin";
61 static u8 keyword_str[] = "end.m.gtp4.e";
63 "Endpoint function with encapsulation for IPv4/GTP tunnel";
64 static u8 param_str[] = "";
67 clb_format_srv6_end_m_gtp4_e (u8 * s, va_list * args)
69 srv6_end_gtp4_e_param_t *ls_mem = va_arg (*args, void *);
71 s = format (s, "SRv6 End gtp4.e\n");
73 s = format (s, "\tIPv4 address position: %d\n", ls_mem->v4src_position);
75 s = format (s, "\tIPv4 source address: %U\n", format_ip4_address,
78 s = format (s, "\tFib Table %d\n", ls_mem->fib_table);
84 clb_unformat_srv6_end_m_gtp4_e (unformat_input_t * input, va_list * args)
86 void **plugin_mem_p = va_arg (*args, void **);
87 srv6_end_gtp4_e_param_t *ls_mem;
88 ip4_address_t v4src_addr;
89 u32 v4src_position = 0;
93 memset (&v4src_addr, 0, sizeof (ip4_address_t));
95 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
97 if (unformat (input, "end.m.gtp4.e v4src_position %d fib-table %d",
98 &v4src_position, &fib_table))
102 else if (unformat (input, "end.m.gtp4.e v4src_addr %U fib-table %d",
103 unformat_ip4_address, &v4src_addr, &fib_table))
116 ls_mem = clib_mem_alloc_aligned_at_offset (sizeof *ls_mem, 0, 0, 1);
117 clib_memset (ls_mem, 0, sizeof *ls_mem);
118 *plugin_mem_p = ls_mem;
120 ls_mem->v4src_position = v4src_position;
121 memcpy (&ls_mem->v4src_addr, &v4src_addr, sizeof (ip4_address_t));
123 ls_mem->fib_table = fib_table;
124 ls_mem->fib4_index = ip4_fib_index_from_table_id (fib_table);
125 ls_mem->fib6_index = ip6_fib_index_from_table_id (fib_table);
131 clb_creation_srv6_end_m_gtp4_e (ip6_sr_localsid_t * localsid)
137 clb_removal_srv6_end_m_gtp4_e (ip6_sr_localsid_t * localsid)
139 srv6_end_gtp4_e_param_t *ls_mem;
141 ls_mem = localsid->plugin_mem;
143 clib_mem_free (ls_mem);
148 static clib_error_t *
149 srv6_end_m_gtp4_e_init (vlib_main_t * vm)
151 srv6_end_main_v4_t *sm = &srv6_end_main_v4;
152 ip4_header_t *ip4 = &sm->cache_hdr.ip4;
153 udp_header_t *udp = &sm->cache_hdr.udp;
154 gtpu_header_t *gtpu = &sm->cache_hdr.gtpu;
160 sm->vnet_main = vnet_get_main ();
162 node = vlib_get_node_by_name (vm, (u8 *) "srv6-end-m-gtp4-e");
163 sm->end_m_gtp4_e_node_index = node->index;
165 node = vlib_get_node_by_name (vm, (u8 *) "error-drop");
166 sm->error_node_index = node->index;
171 // clear the pre cached packet
172 clib_memset_u8 (ip4, 0, sizeof (ip4_gtpu_header_t));
175 ip4->ip_version_and_header_length = 0x45;
176 ip4->protocol = IP_PROTOCOL_UDP;
179 udp->dst_port = clib_host_to_net_u16 (SRV6_GTP_UDP_DST_PORT);
181 gtpu->ver_flags = GTPU_V1_VER | GTPU_PT_GTP;
182 gtpu->type = GTPU_TYPE_GTPU;
185 dpo_type = dpo_register_new_type (&dpo_vft, dpo_nodes);
187 rc = sr_localsid_register_function (vm, fn_name, keyword_str, def_str, param_str, 32, //prefix len
189 clb_format_srv6_end_m_gtp4_e,
190 clb_unformat_srv6_end_m_gtp4_e,
191 clb_creation_srv6_end_m_gtp4_e,
192 clb_removal_srv6_end_m_gtp4_e);
194 clib_error_return (0, "SRv6 Endpoint GTP4.E LocalSID function"
195 "couldn't be registered");
200 VNET_FEATURE_INIT (srv6_end_m_gtp4_e, static) =
202 .arc_name = "ip6-unicast",
203 .node_name = "srv6-end-m-gtp4-e",
207 VLIB_INIT_FUNCTION (srv6_end_m_gtp4_e_init);
209 VLIB_PLUGIN_REGISTER () = {
210 .version = VPP_BUILD_VER,
211 .description = "SRv6 GTP Endpoint Functions",
216 * fd.io coding-style-patch-verification: ON
219 * eval: (c-set-style "gnu")