vpp - Vector Packet Processing

Age	Commit message (Expand)	Author	Files	Lines
2016-09-21	Refactor pre-Doxy siphon scripts; VPP-396	Chris Luke	1	-0/+149

/* * srv6_t_m_gtp4_d.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_t_main_v4_decap_t srv6_t_main_v4_decap; static void clb_dpo_lock_srv6_t_m_gtp4_d (dpo_id_t * dpo) { } static void clb_dpo_unlock_srv6_t_m_gtp4_d (dpo_id_t * dpo) { } static u8 * clb_dpo_format_srv6_t_m_gtp4_d (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_t_m_gtp4_d, .dv_unlock = clb_dpo_unlock_srv6_t_m_gtp4_d, .dv_format = clb_dpo_format_srv6_t_m_gtp4_d, }; const static char *const srv6_t_m_gtp4_d_nodes[] = { "srv6-t-m-gtp4-d", NULL, }; const static char *const srv6_t_m_gtp4_d_v6_nodes[] = { "error-drop", NULL, }; const static char *const *const dpo_nodes[DPO_PROTO_NUM] = { [DPO_PROTO_IP6] = srv6_t_m_gtp4_d_v6_nodes, [DPO_PROTO_IP4] = srv6_t_m_gtp4_d_nodes, }; static u8 fn_name[] = "SRv6-T.M.GTP4.D-plugin"; static u8 keyword_str[] = "t.m.gtp4.d"; static u8 def_str[] = "Transit function with decapsulation for IPv4/GTP tunnel"; static u8 param_str[] = "<sr-prefix>/<sr-prefixlen> v6src_prefix <v6src_prefix>/<prefixlen> [nhtype " "<nhtype>] fib-table <id>"; static u8 * clb_format_srv6_t_m_gtp4_d (u8 * s, va_list * args) { srv6_end_gtp4_d_param_t *ls_mem = va_arg (*args, void *); s = format (s, "SRv6 T.M.GTP4.D\n\t"); s = format (s, "SR Prefix: %U/%d, ", format_ip6_address, &ls_mem->sr_prefix, ls_mem->sr_prefixlen); s = format (s, "v6src Prefix: %U/%d", format_ip6_address, &ls_mem->v6src_prefix, ls_mem->v6src_prefixlen); if (ls_mem->nhtype != SRV6_NHTYPE_NONE) { if (ls_mem->nhtype == SRV6_NHTYPE_IPV4) s = format (s, ", NHType IPv4"); else if (ls_mem->nhtype == SRV6_NHTYPE_IPV6) s = format (s, ", NHType IPv6"); else if (ls_mem->nhtype == SRV6_NHTYPE_NON_IP) s = format (s, ", NHType Non-IP"); else s = format (s, ", NHType Unknow(%d)", ls_mem->nhtype); } s = format (s, ", FIB table %d", ls_mem->fib_table); s = format (s, ", Drop In %d\n", ls_mem->drop_in); return s; } static uword clb_unformat_srv6_t_m_gtp4_d (unformat_input_t * input, va_list * args) { void **plugin_mem_p = va_arg (*args, void **); srv6_end_gtp4_d_param_t *ls_mem; ip6_address_t sr_prefix; u32 sr_prefixlen; ip6_address_t v6src_prefix; u32 v6src_prefixlen; u32 fib_table = 0; bool drop_in = false; u8 nhtype = SRV6_NHTYPE_NONE; bool config = false; while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { if (unformat ( input, "t.m.gtp4.d %U/%d v6src_prefix %U/%d nhtype ipv4 fib-table %d", unformat_ip6_address, &sr_prefix, &sr_prefixlen, unformat_ip6_address, &v6src_prefix, &v6src_prefixlen, &fib_table)) { config = true; nhtype = SRV6_NHTYPE_IPV4; } else if (unformat (input, "t.m.gtp4.d %U/%d v6src_prefix %U/%d nhtype ipv6 " "fib-table %d", unformat_ip6_address, &sr_prefix, &sr_prefixlen, unformat_ip6_address, &v6src_prefix, &v6src_prefixlen, &fib_table)) { config = true; nhtype = SRV6_NHTYPE_IPV6; } else if (unformat ( input, "t.m.gtp4.d %U/%d v6src_prefix %U/%d nhtype non-ip", unformat_ip6_address, &sr_prefix, &sr_prefixlen, unformat_ip6_address, &v6src_prefix, &v6src_prefixlen)) { config = true; nhtype = SRV6_NHTYPE_NON_IP; } else if (unformat (input, "t.m.gtp4.d %U/%d v6src_prefix %U/%d fib-table %d", unformat_ip6_address, &sr_prefix, &sr_prefixlen, unformat_ip6_address, &v6src_prefix, &v6src_prefixlen, &fib_table)) { config = true; nhtype = SRV6_NHTYPE_NONE; } else if (unformat (input, "drop-in")) { drop_in = true; } else { return 0; } } if (!config) { 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->sr_prefix = sr_prefix; ls_mem->sr_prefixlen = sr_prefixlen; ls_mem->v6src_prefix = v6src_prefix; ls_mem->v6src_prefixlen = v6src_prefixlen; ls_mem->nhtype = nhtype; ls_mem->drop_in = drop_in; ls_mem->fib_table = fib_table; ls_mem->fib4_index = ip4_fib_index_from_table_id (fib_table); ls_mem->fib6_index = ip6_fib_index_from_table_id (fib_table); return 1; } static int clb_creation_srv6_t_m_gtp4_d (ip6_sr_policy_t * sr_policy) { return 0; } static int clb_removal_srv6_t_m_gtp4_d (ip6_sr_policy_t * sr_policy) { srv6_end_gtp4_d_param_t *ls_mem; ls_mem = (srv6_end_gtp4_d_param_t *) sr_policy->plugin_mem; clib_mem_free (ls_mem); return 0; } static clib_error_t * srv6_t_m_gtp4_d_init (vlib_main_t * vm) { srv6_t_main_v4_decap_t *sm = &srv6_t_main_v4_decap; ip6_header_t *ip6; dpo_type_t dpo_type; vlib_node_t *node; int rc; sm->vlib_main = vm; sm->vnet_main = vnet_get_main (); node = vlib_get_node_by_name (vm, (u8 *) "srv6-t-m-gtp4-d"); sm->t_m_gtp4_d_node_index = node->index; node = vlib_get_node_by_name (vm, (u8 *) "error-drop"); sm->error_node_index = node->index; ip6 = &sm->cache_hdr; clib_memset_u8 (ip6, 0, sizeof (ip6_header_t)); // IPv6 header (default) ip6->ip_version_traffic_class_and_flow_label = 0x60; ip6->hop_limit = 64; ip6->protocol = IP_PROTOCOL_IPV6; dpo_type = dpo_register_new_type (&dpo_vft, dpo_nodes); rc = sr_policy_register_function (vm, fn_name, keyword_str, def_str, param_str, 128, //prefix len &dpo_type, clb_format_srv6_t_m_gtp4_d, clb_unformat_srv6_t_m_gtp4_d, clb_creation_srv6_t_m_gtp4_d, clb_removal_srv6_t_m_gtp4_d); if (rc < 0) clib_error_return (0, "SRv6 Transit GTP4.D Policy function" "couldn't be registered"); return 0; } /* *INDENT-OFF* */ VNET_FEATURE_INIT (srv6_t_m_gtp4_d, static) = { .arc_name = "ip4-unicast", .node_name = "srv6-t-m-gtp4-d", .runs_before = 0, }; VLIB_INIT_FUNCTION (srv6_t_m_gtp4_d_init); /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */