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-rw-r--r--src/plugins/srv6-mobile/gtp4_e.c188
1 files changed, 188 insertions, 0 deletions
diff --git a/src/plugins/srv6-mobile/gtp4_e.c b/src/plugins/srv6-mobile/gtp4_e.c
new file mode 100644
index 00000000000..73a91f8592d
--- /dev/null
+++ b/src/plugins/srv6-mobile/gtp4_e.c
@@ -0,0 +1,188 @@
+/*
+ * srv6_end_m_gtp4_e.c
+ *
+ * Copyright (c) 2019 Arrcus Inc and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vnet/vnet.h>
+#include <vnet/adj/adj.h>
+#include <vnet/plugin/plugin.h>
+#include <vpp/app/version.h>
+#include <srv6-mobile/mobile.h>
+
+srv6_end_main_v4_t srv6_end_main_v4;
+
+static void
+clb_dpo_lock_srv6_end_m_gtp4_e (dpo_id_t * dpo)
+{
+}
+
+static void
+clb_dpo_unlock_srv6_end_m_gtp4_e (dpo_id_t * dpo)
+{
+}
+
+static u8 *
+clb_dpo_format_srv6_end_m_gtp4_e (u8 * s, va_list * args)
+{
+ index_t index = va_arg (*args, index_t);
+ CLIB_UNUSED (u32 indent) = va_arg (*args, u32);
+
+ return (format (s, "SR: dynamic_proxy_index:[%u]", index));
+}
+
+const static dpo_vft_t dpo_vft = {
+ .dv_lock = clb_dpo_lock_srv6_end_m_gtp4_e,
+ .dv_unlock = clb_dpo_unlock_srv6_end_m_gtp4_e,
+ .dv_format = clb_dpo_format_srv6_end_m_gtp4_e,
+};
+
+const static char *const srv6_end_m_gtp4_e_nodes[] = {
+ "srv6-end-m-gtp4-e",
+ NULL,
+};
+
+const static char *const *const dpo_nodes[DPO_PROTO_NUM] = {
+ [DPO_PROTO_IP6] = srv6_end_m_gtp4_e_nodes,
+};
+
+static u8 fn_name[] = "SRv6-End.M.GTP4.E-plugin";
+static u8 keyword_str[] = "end.m.gtp4.e";
+static u8 def_str[] =
+ "Endpoint function with encapsulation for IPv4/GTP tunnel";
+static u8 param_str[] = "";
+
+static u8 *
+clb_format_srv6_end_m_gtp4_e (u8 * s, va_list * args)
+{
+ srv6_end_gtp4_param_t *ls_mem = va_arg (*args, void *);
+
+ s = format (s, "SRv6 End gtp4.e\n\t");
+
+ s = format (s, "IPv4 address position: %d\n", ls_mem->v4src_position);
+
+ return s;
+}
+
+static uword
+clb_unformat_srv6_end_m_gtp4_e (unformat_input_t * input, va_list * args)
+{
+ void **plugin_mem_p = va_arg (*args, void **);
+ srv6_end_gtp4_param_t *ls_mem;
+ u32 v4src_position;
+
+ if (!unformat (input, "end.m.gtp4.e v4src_position %d", &v4src_position))
+ return 0;
+
+ ls_mem = clib_mem_alloc_aligned_at_offset (sizeof *ls_mem, 0, 0, 1);
+ clib_memset (ls_mem, 0, sizeof *ls_mem);
+ *plugin_mem_p = ls_mem;
+
+ ls_mem->v4src_position = v4src_position;
+
+ return 1;
+}
+
+static int
+clb_creation_srv6_end_m_gtp4_e (ip6_sr_localsid_t * localsid)
+{
+ return 0;
+}
+
+static int
+clb_removal_srv6_end_m_gtp4_e (ip6_sr_localsid_t * localsid)
+{
+ srv6_end_gtp4_param_t *ls_mem;
+
+ ls_mem = localsid->plugin_mem;
+
+ clib_mem_free (ls_mem);
+
+ return 0;
+}
+
+static clib_error_t *
+srv6_end_m_gtp4_e_init (vlib_main_t * vm)
+{
+ srv6_end_main_v4_t *sm = &srv6_end_main_v4;
+ ip4_header_t *ip4 = &sm->cache_hdr.ip4;
+ udp_header_t *udp = &sm->cache_hdr.udp;
+ gtpu_header_t *gtpu = &sm->cache_hdr.gtpu;
+ dpo_type_t dpo_type;
+ vlib_node_t *node;
+ u32 rc;
+
+ sm->vlib_main = vm;
+ sm->vnet_main = vnet_get_main ();
+
+ node = vlib_get_node_by_name (vm, (u8 *) "srv6-end-m-gtp4-e");
+ sm->end_m_gtp4_e_node_index = node->index;
+
+ node = vlib_get_node_by_name (vm, (u8 *) "error-drop");
+ sm->error_node_index = node->index;
+
+ sm->dst_p_len = 32;
+ sm->src_p_len = 64;
+
+ // clear the pre cached packet
+ clib_memset_u8 (ip4, 0, sizeof (ip4_gtpu_header_t));
+
+ // set defaults
+ ip4->ip_version_and_header_length = 0x45;
+ ip4->protocol = IP_PROTOCOL_UDP;
+ ip4->ttl = 64;
+
+ udp->dst_port = clib_host_to_net_u16 (SRV6_GTP_UDP_DST_PORT);
+
+ gtpu->ver_flags = GTPU_V1_VER | GTPU_PT_GTP;
+ gtpu->type = GTPU_TYPE_GTPU;
+ //
+
+ dpo_type = dpo_register_new_type (&dpo_vft, dpo_nodes);
+
+ rc = sr_localsid_register_function (vm, fn_name, keyword_str, def_str, param_str, 32, //prefix len
+ &dpo_type,
+ clb_format_srv6_end_m_gtp4_e,
+ clb_unformat_srv6_end_m_gtp4_e,
+ clb_creation_srv6_end_m_gtp4_e,
+ clb_removal_srv6_end_m_gtp4_e);
+ if (rc < 0)
+ clib_error_return (0, "SRv6 Endpoint GTP4.E LocalSID function"
+ "couldn't be registered");
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VNET_FEATURE_INIT (srv6_end_m_gtp4_e, static) =
+{
+ .arc_name = "ip6-unicast",
+ .node_name = "srv6-end-m-gtp4-e",
+ .runs_before = 0,
+};
+
+VLIB_INIT_FUNCTION (srv6_end_m_gtp4_e_init);
+
+VLIB_PLUGIN_REGISTER () = {
+ .version = VPP_BUILD_VER,
+ .description = "SRv6 GTP Endpoint Functions",
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */