From 1b81e6ef66cbce15ba1b05904732f92251d531cd Mon Sep 17 00:00:00 2001 From: Tetsuya Murakami Date: Wed, 6 Nov 2019 11:05:51 -0800 Subject: srv6-mobile Type: feature Plug-in for IPv6 Segment Routing Mobile This funcion was developed by Signed-off-by: Satoru Matsuchima Signed-off-by: Filip Varga Signed-off-by: Tetsuya Murakami Signed-off-by: Tetsuya Murakami Change-Id: Ie995adc73d8f8d444339aab71619c3599e69f12d Signed-off-by: Tetsuya Murakami --- src/plugins/srv6-mobile/gtp6_e.c | 157 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 157 insertions(+) create mode 100644 src/plugins/srv6-mobile/gtp6_e.c (limited to 'src/plugins/srv6-mobile/gtp6_e.c') diff --git a/src/plugins/srv6-mobile/gtp6_e.c b/src/plugins/srv6-mobile/gtp6_e.c new file mode 100644 index 00000000000..4bc8d97cec7 --- /dev/null +++ b/src/plugins/srv6-mobile/gtp6_e.c @@ -0,0 +1,157 @@ +/* + * srv6_end_m_gtp6_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 +#include +#include +#include +#include + +srv6_end_main_v6_t srv6_end_main_v6; + +static void +clb_dpo_lock_srv6_end_m_gtp6_e (dpo_id_t * dpo) +{ +} + +static void +clb_dpo_unlock_srv6_end_m_gtp6_e (dpo_id_t * dpo) +{ +} + +static u8 * +clb_dpo_format_srv6_end_m_gtp6_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_gtp6_e, + .dv_unlock = clb_dpo_unlock_srv6_end_m_gtp6_e, + .dv_format = clb_dpo_format_srv6_end_m_gtp6_e, +}; + +const static char *const srv6_end_m_gtp6_e_nodes[] = { + "srv6-end-m-gtp6-e", + NULL, +}; + +const static char *const *const dpo_nodes[DPO_PROTO_NUM] = { + [DPO_PROTO_IP6] = srv6_end_m_gtp6_e_nodes, +}; + +static u8 fn_name[] = "SRv6-End.M.GTP6.E-plugin"; +static u8 keyword_str[] = "end.m.gtp6.e"; +static u8 def_str[] = + "Endpoint function with encapsulation for IPv6/GTP tunnel"; +static u8 param_str[] = ""; + +static u8 * +clb_format_srv6_end_m_gtp6_e (u8 * s, va_list * args) +{ + s = format (s, "SRv6 End format function unsupported."); + return s; +} + +static uword +clb_unformat_srv6_end_m_gtp6_e (unformat_input_t * input, va_list * args) +{ + if (!unformat (input, "end.m.gtp6.e")) + return 0; + return 1; +} + +static int +clb_creation_srv6_end_m_gtp6_e (ip6_sr_localsid_t * localsid) +{ + return 0; +} + +static int +clb_removal_srv6_end_m_gtp6_e (ip6_sr_localsid_t * localsid) +{ + return 0; +} + +static clib_error_t * +srv6_end_m_gtp6_e_init (vlib_main_t * vm) +{ + srv6_end_main_v6_t *sm = &srv6_end_main_v6; + ip6_header_t *ip6 = &sm->cache_hdr.ip6; + 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-gtp6-e"); + sm->end_m_gtp6_e_node_index = node->index; + + node = vlib_get_node_by_name (vm, (u8 *) "error-drop"); + sm->error_node_index = node->index; + + // clear the pre cached packet + clib_memset_u8 (ip6, 0, sizeof (ip6_gtpu_header_t)); + + // set defaults + ip6->ip_version_traffic_class_and_flow_label = 0x60; + ip6->protocol = IP_PROTOCOL_UDP; + ip6->hop_limit = 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, 128, //prefix len + &dpo_type, + clb_format_srv6_end_m_gtp6_e, + clb_unformat_srv6_end_m_gtp6_e, + clb_creation_srv6_end_m_gtp6_e, + clb_removal_srv6_end_m_gtp6_e); + if (rc < 0) + clib_error_return (0, "SRv6 Endpoint GTP6.E LocalSID function" + "couldn't be registered"); + return 0; +} + +/* *INDENT-OFF* */ +VNET_FEATURE_INIT (srv6_end_m_gtp6_e, static) = +{ + .arc_name = "ip6-unicast", + .node_name = "srv6-end-m-gtp6-e", + .runs_before = 0, +}; + +VLIB_INIT_FUNCTION (srv6_end_m_gtp6_e_init); +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ -- cgit 1.2.3-korg