/* * 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 extern ip6_address_t sr_pr_encaps_src; typedef struct { ip6_address_t src, dst; ip6_address_t sr_prefix; u16 sr_prefixlen; u32 teid; } srv6_end_rewrite_trace_t; static u16 srh_tagfield[256] = { /* 0 */ 0x0, /* 1 : Echo Request */ 0x0004, /* 2 : Echo Reply */ 0x0008, /* 3 - 7 */ 0x0, 0x0, 0x0, 0x0, 0x0, /* 8 - 15 */ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, /* 16 - 23 */ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, /* 24 - 25 */ 0x0, 0x0, /* 26 : Error Indication */ 0x0002, /* 27 - 31 */ 0x0, 0x0, 0x0, 0x0, 0x0, /* 32 - 247 */ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, /* 248 - 253 */ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, /* 254 : End Maker */ 0x0001, /* 255 : G_PDU */ 0x0 }; static u8 * format_srv6_end_rewrite_trace (u8 * s, va_list * args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); srv6_end_rewrite_trace_t *t = va_arg (*args, srv6_end_rewrite_trace_t *); return format (s, "SRv6-END-rewrite: src %U dst %U\n\tTEID: 0x%x", format_ip4_address, &t->src, format_ip4_address, &t->dst, clib_net_to_host_u32 (t->teid)); } static u8 * format_srv6_end_rewrite_trace6 (u8 * s, va_list * args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); srv6_end_rewrite_trace_t *t = va_arg (*args, srv6_end_rewrite_trace_t *); return format (s, "SRv6-END-rewrite: src %U dst %U\n\tTEID: 0x%x\n\tsr_prefix: %U/%d", format_ip6_address, &t->src, format_ip6_address, &t->dst, clib_net_to_host_u32 (t->teid), format_ip6_address, &t->sr_prefix, t->sr_prefixlen); } #define foreach_srv6_end_v4_error \ _(M_GTP4_E_PACKETS, "srv6 End.M.GTP4.E packets") \ _(M_GTP4_E_BAD_PACKETS, "srv6 End.M.GTP4.E bad packets") #define foreach_srv6_end_v4_d_error \ _(M_GTP4_D_PACKETS, "srv6 End.M.GTP4.D packets") \ _(M_GTP4_D_BAD_PACKETS, "srv6 End.M.GTP4.D bad packets") #define foreach_srv6_end_v6_e_error \ _(M_GTP6_E_PACKETS, "srv6 End.M.GTP6.E packets") \ _(M_GTP6_E_BAD_PACKETS, "srv6 End.M.GTP6.E bad packets") #define foreach_srv6_end_v6_d_error \ _(M_GTP6_D_PACKETS, "srv6 End.M.GTP6.D packets") \ _(M_GTP6_D_BAD_PACKETS, "srv6 End.M.GTP6.D bad packets") #define foreach_srv6_end_v6_d_di_error \ _(M_GTP6_D_DI_PACKETS, "srv6 End.M.GTP6.D.DI packets") \ _(M_GTP6_D_DI_BAD_PACKETS, "srv6 End.M.GTP6.D.DI bad packets") typedef enum { #define _(sym,str) SRV6_END_ERROR_##sym, foreach_srv6_end_v4_error #undef _ SRV6_END_N_V4_ERROR, } srv6_end_error_v4_t; typedef enum { #define _(sym,str) SRV6_END_ERROR_##sym, foreach_srv6_end_v4_d_error #undef _ SRV6_END_N_V4_D_ERROR, } srv6_end_error_v4_d_t; typedef enum { #define _(sym,str) SRV6_END_ERROR_##sym, foreach_srv6_end_v6_e_error #undef _ SRV6_END_N_V6_E_ERROR, } srv6_end_error_v6_e_t; typedef enum { #define _(sym,str) SRV6_END_ERROR_##sym, foreach_srv6_end_v6_d_error #undef _ SRV6_END_N_V6_D_ERROR, } srv6_end_error_v6_d_t; typedef enum { #define _(sym,str) SRV6_END_ERROR_##sym, foreach_srv6_end_v6_d_di_error #undef _ SRV6_END_N_V6_D_DI_ERROR, } srv6_end_error_v6_d_di_t; static char *srv6_end_error_v4_strings[] = { #define _(sym,string) string, foreach_srv6_end_v4_error #undef _ }; static char *srv6_end_error_v6_e_strings[] = { #define _(sym,string) string, foreach_srv6_end_v6_e_error #undef _ }; static char *srv6_end_error_v6_d_strings[] = { #define _(sym,string) string, foreach_srv6_end_v6_d_error #undef _ }; static char *srv6_end_error_v6_d_di_strings[] = { #define _(sym,string) string, foreach_srv6_end_v6_d_di_error #undef _ }; typedef enum { SRV6_END_M_GTP4_E_NEXT_DROP, SRV6_END_M_GTP4_E_NEXT_LOOKUP, SRV6_END_M_GTP4_E_N_NEXT, } srv6_end_m_gtp4_e_next_t; typedef enum { SRV6_END_M_GTP6_E_NEXT_DROP, SRV6_END_M_GTP6_E_NEXT_LOOKUP, SRV6_END_M_GTP6_E_N_NEXT, } srv6_end_m_gtp6_e_next_t; typedef enum { SRV6_END_M_GTP6_D_NEXT_DROP, SRV6_END_M_GTP6_D_NEXT_LOOKUP, SRV6_END_M_GTP6_D_N_NEXT, } srv6_end_m_gtp6_d_next_t; typedef enum { SRV6_END_M_GTP6_D_DI_NEXT_DROP, SRV6_END_M_GTP6_D_DI_NEXT_LOOKUP, SRV6_END_M_GTP6_D_DI_N_NEXT, } srv6_end_m_gtp6_d_di_next_t; static inline u16 hash_uword_to_u16 (uword * key) { u16 *val; val = (u16 *) key; #if uword_bits == 64 return val[0] ^ val[1] ^ val[2] ^ val[3]; #else return val[0] ^ val[1]; #endif } static inline void gtp_type_set (gtpu_header_t * gtpu, u16 tag) { u16 val; val = clib_net_to_host_u16 (tag); if (val & SRH_TAG_ECHO_REPLY) gtpu->type = GTPU_TYPE_ECHO_REPLY; else if (val & SRH_TAG_ECHO_REQUEST) gtpu->type = GTPU_TYPE_ECHO_REQUEST; else if (val & SRH_TAG_ERROR_INDICATION) gtpu->type = GTPU_TYPE_ERROR_INDICATION; else if (val & SRH_TAG_END_MARKER) gtpu->type = GTPU_TYPE_END_MARKER; } // Function for SRv6 GTP4.E function. VLIB_NODE_FN (srv6_end_m_gtp4_e) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { srv6_end_main_v4_t *sm = &srv6_end_main_v4; ip6_sr_main_t *sm2 = &sr_main; u32 n_left_from, next_index, *from, *to_next; u32 thread_index = vm->thread_index; u32 good_n = 0, bad_n = 0; from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; while (n_left_from > 0) { u32 n_left_to_next; vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); while (n_left_from > 0 && n_left_to_next > 0) { u32 bi0; vlib_buffer_t *b0; ip6_sr_localsid_t *ls0; srv6_end_gtp4_param_t *ls_param; ip6srv_combo_header_t *ip6srv0; ip6_address_t src0, dst0; ip4_gtpu_header_t *hdr0 = NULL; uword len0; u32 next0 = SRV6_END_M_GTP4_E_NEXT_LOOKUP; // defaults bi0 = from[0]; to_next[0] = bi0; from += 1; to_next += 1; n_left_from -= 1; n_left_to_next -= 1; b0 = vlib_get_buffer (vm, bi0); ls0 = pool_elt_at_index (sm2->localsids, vnet_buffer (b0)->ip.adj_index[VLIB_TX]); ls_param = (srv6_end_gtp4_param_t *) ls0->plugin_mem; ip6srv0 = vlib_buffer_get_current (b0); src0 = ip6srv0->ip.src_address; dst0 = ip6srv0->ip.dst_address; len0 = vlib_buffer_length_in_chain (vm, b0); if ((ip6srv0->ip.protocol == IPPROTO_IPV6_ROUTE && len0 < sizeof (ip6srv_combo_header_t) + ip6srv0->sr.length * 8) || (len0 < sizeof (ip6_header_t))) { next0 = SRV6_END_M_GTP4_E_NEXT_DROP; bad_n++; } else { u16 tag = 0; u32 teid; u8 *teid8p = (u8 *) & teid; u8 qfi = 0; u32 index; u32 offset, shift; u32 hdrlen = 0; uword key; u16 port; ip4_address_t dst4; void *p; // we need to be sure there is enough space before // ip6srv0 header, there is some extra space // in the pre_data area for this kind of // logic // jump over variable length data // not sure about the length if (ip6srv0->ip.protocol == IPPROTO_IPV6_ROUTE) { tag = ip6srv0->sr.tag; vlib_buffer_advance (b0, (word) sizeof (ip6srv_combo_header_t) + ip6srv0->sr.length * 8); } else { vlib_buffer_advance (b0, (word) sizeof (ip6_header_t)); } // get length of encapsulated IPv6 packet (the remaining part) p = vlib_buffer_get_current (b0); len0 = vlib_buffer_length_in_chain (vm, b0); offset = ls0->localsid_len / 8; shift = ls0->localsid_len % 8; if (PREDICT_TRUE (shift == 0)) { clib_memcpy_fast (&dst4.as_u8[0], &dst0.as_u8[offset], 4); qfi = dst0.as_u8[offset + 4]; clib_memcpy_fast (teid8p, &dst0.as_u8[offset + 5], 4); } else { for (index = 0; index < 4; index++) { dst4.as_u8[index] = dst0.as_u8[offset + index] << shift; dst4.as_u8[index] |= dst0.as_u8[offset + index + 1] >> (8 - shift); } qfi |= dst0.as_u8[offset + 4] << shift; qfi |= dst0.as_u8[offset + 5] >> (8 - shift); for (index = 0; index < 4; index++) { *teid8p = dst0.as_u8[offset + 5 + index] << shift; *teid8p |= dst0.as_u8[offset + 6 + index] >> (8 - shift); teid8p++; } } if (qfi) { hdrlen = sizeof (gtpu_exthdr_t) + sizeof (gtpu_pdu_session_t); len0 += hdrlen; } hdrlen += sizeof (ip4_gtpu_header_t); // IPv4 GTP-U header creation. vlib_buffer_advance (b0, -(word) hdrlen); hdr0 = vlib_buffer_get_current (b0); clib_memcpy_fast (hdr0, &sm->cache_hdr, sizeof (ip4_gtpu_header_t)); hdr0->ip4.dst_address.as_u32 = dst4.as_u32; hdr0->gtpu.teid = teid; hdr0->gtpu.length = clib_host_to_net_u16 (len0); if (PREDICT_FALSE (tag != 0)) { gtp_type_set (&hdr0->gtpu, tag); } if (qfi) { u8 type = 0; gtpu_pdu_session_t *sess; hdr0->gtpu.ver_flags |= GTPU_EXTHDR_FLAG; hdr0->gtpu.ext->seq = 0; hdr0->gtpu.ext->npdu_num = 0; hdr0->gtpu.ext->nextexthdr = GTPU_EXTHDR_PDU_SESSION; type = qfi & SRV6_PDU_SESSION_U_BIT_MASK; qfi = ((qfi & SRV6_PDU_SESSION_QFI_MASK) >> 2) | ((qfi & SRV6_PDU_SESSION_R_BIT_MASK) << 5); sess = (gtpu_pdu_session_t *) (((char *) hdr0) + sizeof (ip4_gtpu_header_t) + sizeof (gtpu_exthdr_t)); sess->exthdrlen = 1; sess->type = type; sess->spare = 0; sess->u.val = qfi; sess->nextexthdr = 0; } offset = ls_param->v4src_position / 8; shift = ls_param->v4src_position % 8; if (PREDICT_TRUE (shift == 0)) { for (index = 0; index < 4; index++) { hdr0->ip4.src_address.as_u8[index] = src0.as_u8[offset + index]; } } else { for (index = 0; index < 4; index++) { hdr0->ip4.src_address.as_u8[index] = src0.as_u8[offset + index] << shift; hdr0->ip4.src_address.as_u8[index] |= src0.as_u8[offset + index + 1] >> (8 - shift); } } key = hash_memory (p, len0, 0); port = hash_uword_to_u16 (&key); hdr0->udp.src_port = port; hdr0->udp.length = clib_host_to_net_u16 (len0 + sizeof (udp_header_t) + sizeof (gtpu_header_t)); hdr0->ip4.length = clib_host_to_net_u16 (len0 + sizeof (ip4_gtpu_header_t)); hdr0->ip4.checksum = ip4_header_checksum (&hdr0->ip4); good_n++; if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE) && PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) { srv6_end_rewrite_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr)); clib_memcpy (tr->src.as_u8, hdr0->ip4.src_address.as_u8, sizeof (tr->src.as_u8)); clib_memcpy (tr->dst.as_u8, hdr0->ip4.dst_address.as_u8, sizeof (tr->dst.as_u8)); tr->teid = hdr0->gtpu.teid; } } vlib_increment_combined_counter (((next0 == SRV6_END_M_GTP4_E_NEXT_DROP) ? &(sm2->sr_ls_invalid_counters) : &(sm2->sr_ls_valid_counters)), thread_index, ls0 - sm2->localsids, 1, vlib_buffer_length_in_chain (vm, b0)); vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, bi0, next0); } vlib_put_next_frame (vm, node, next_index, n_left_to_next); } vlib_node_increment_counter (vm, sm->end_m_gtp4_e_node_index, SRV6_END_ERROR_M_GTP4_E_BAD_PACKETS, bad_n); vlib_node_increment_counter (vm, sm->end_m_gtp4_e_node_index, SRV6_END_ERROR_M_GTP4_E_PACKETS, good_n); return frame->n_vectors; } VLIB_REGISTER_NODE (srv6_end_m_gtp4_e) = { .name = "srv6-end-m-gtp4-e",.vector_size = sizeof (u32),.format_trace = format_srv6_end_rewrite_trace,.type = VLIB_NODE_TYPE_INTERNAL,.n_errors = ARRAY_LEN (srv6_end_error_v4_strings),.error_strings = srv6_end_error_v4_strings,.n_next_nodes = SRV6_END_M_GTP4_E_N_NEXT,.next_nodes = { [SRV6_END_M_GTP4_E_NEXT_DROP] = "error-drop",[SRV6_END_M_GTP4_E_NEXT_LOOKUP] = "ip4-lookup",} ,}; // Function for SRv6 GTP6.E function VLIB_NODE_FN (srv6_end_m_gtp6_e) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { srv6_end_main_v6_t *sm = &srv6_end_main_v6; ip6_sr_main_t *sm2 = &sr_main; u32 n_left_from, next_index, *from, *to_next; u32 thread_index = vm->thread_index; u32 good_n = 0, bad_n = 0; from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; while (n_left_from > 0) { u32 n_left_to_next; vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); while (n_left_from > 0 && n_left_to_next > 0) { u32 bi0; vlib_buffer_t *b0; ip6_sr_localsid_t *ls0; ip6srv_combo_header_t *ip6srv0; ip6_address_t dst0, src0, seg0; ip6_gtpu_header_t *hdr0 = NULL; uword len0; uword key; u16 port; u16 tag; void *p; u32 next0 = SRV6_END_M_GTP6_E_NEXT_LOOKUP; // defaults bi0 = from[0]; to_next[0] = bi0; from += 1; to_next += 1; n_left_from -= 1; n_left_to_next -= 1; b0 = vlib_get_buffer (vm, bi0); ls0 = pool_elt_at_index (sm2->localsids, vnet_buffer (b0)->ip.adj_index[VLIB_TX]); ip6srv0 = vlib_buffer_get_current (b0); dst0 = ip6srv0->ip.dst_address; src0 = ip6srv0->ip.src_address; seg0 = ip6srv0->sr.segments[0]; tag = ip6srv0->sr.tag; len0 = vlib_buffer_length_in_chain (vm, b0); if ((ip6srv0->ip.protocol != IPPROTO_IPV6_ROUTE) || (len0 < sizeof (ip6srv_combo_header_t) + 8 * ip6srv0->sr.length)) { next0 = SRV6_END_M_GTP6_E_NEXT_DROP; bad_n++; } else { // we need to be sure there is enough space before // ip6srv0 header, there is some extra space // in the pre_data area for this kind of // logic // jump over variable length data // not sure about the length vlib_buffer_advance (b0, (word) sizeof (ip6srv_combo_header_t) + ip6srv0->sr.length * 8); // get length of encapsulated IPv6 packet (the remaining part) p = vlib_buffer_get_current (b0); len0 = vlib_buffer_length_in_chain (vm, b0); u32 teid; u8 *teid8p = (u8 *) & teid; u8 qfi = 0; u16 index; u16 offset, shift; u32 hdrlen = 0; index = ls0->localsid_len; index += 8; offset = index / 8; shift = index % 8; if (PREDICT_TRUE (shift == 0)) { clib_memcpy_fast (teid8p, &dst0.as_u8[offset], 4); qfi = dst0.as_u8[offset + 4]; } else { for (index = offset; index < offset + 4; index++) { *teid8p = dst0.as_u8[index] << shift; *teid8p |= dst0.as_u8[index + 1] >> (8 - shift); teid8p++; } qfi |= dst0.as_u8[offset + 4] << shift; qfi |= dst0.as_u8[offset + 5] >> (8 - shift); } if (qfi) { hdrlen = sizeof (gtpu_exthdr_t) + sizeof (gtpu_pdu_session_t); len0 += hdrlen; } hdrlen += sizeof (ip6_gtpu_header_t); vlib_buffer_advance (b0, -(word) hdrlen); hdr0 = vlib_buffer_get_current (b0); clib_memcpy_fast (hdr0, &sm->cache_hdr, sizeof (ip6_gtpu_header_t)); hdr0->gtpu.teid = teid; hdr0->gtpu.length = clib_host_to_net_u16 (len0); if (PREDICT_FALSE (tag != 0)) { gtp_type_set (&hdr0->gtpu, tag); } if (qfi) { u8 type = 0; gtpu_pdu_session_t *sess; hdr0->gtpu.ver_flags |= GTPU_EXTHDR_FLAG; hdr0->gtpu.ext->seq = 0; hdr0->gtpu.ext->npdu_num = 0; hdr0->gtpu.ext->nextexthdr = GTPU_EXTHDR_PDU_SESSION; type = qfi & SRV6_PDU_SESSION_U_BIT_MASK; qfi = ((qfi & SRV6_PDU_SESSION_QFI_MASK) >> 2) | ((qfi & SRV6_PDU_SESSION_R_BIT_MASK) << 5); sess = (gtpu_pdu_session_t *) (((char *) hdr0) + sizeof (ip6_gtpu_header_t) + sizeof (gtpu_exthdr_t)); sess->exthdrlen = 1; sess->type = type; sess->spare = 0; sess->u.val = qfi; sess->nextexthdr = 0; } hdr0->udp.length = clib_host_to_net_u16 (len0 + sizeof (udp_header_t) + sizeof (gtpu_header_t)); clib_memcpy_fast (hdr0->ip6.src_address.as_u8, src0.as_u8, sizeof (ip6_address_t)); clib_memcpy_fast (hdr0->ip6.dst_address.as_u8, &seg0.as_u8, sizeof (ip6_address_t)); hdr0->ip6.payload_length = clib_host_to_net_u16 (len0 + sizeof (udp_header_t) + sizeof (gtpu_header_t)); // UDP source port. key = hash_memory (p, len0, 0); port = hash_uword_to_u16 (&key); hdr0->udp.src_port = port; good_n++; if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE) && PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) { srv6_end_rewrite_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr)); clib_memcpy (tr->src.as_u8, hdr0->ip6.src_address.as_u8, sizeof (ip6_address_t)); clib_memcpy (tr->dst.as_u8, hdr0->ip6.dst_address.as_u8, sizeof (ip6_address_t)); tr->teid = hdr0->gtpu.teid; } } vlib_increment_combined_counter (((next0 == SRV6_END_M_GTP6_E_NEXT_DROP) ? &(sm2->sr_ls_invalid_counters) : &(sm2->sr_ls_valid_counters)), thread_index, ls0 - sm2->localsids, 1, vlib_buffer_length_in_chain (vm, b0)); vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, bi0, next0); } vlib_put_next_frame (vm, node, next_index, n_left_to_next); } vlib_node_increment_counter (vm, sm->end_m_gtp6_e_node_index, SRV6_END_ERROR_M_GTP6_E_BAD_PACKETS, bad_n); vlib_node_increment_counter (vm, sm->end_m_gtp6_e_node_index, SRV6_END_ERROR_M_GTP6_E_PACKETS, good_n); return frame->n_vectors; } // Function for SRv6 GTP6.D function VLIB_NODE_FN (srv6_end_m_gtp6_d) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { srv6_end_main_v6_decap_t *sm = &srv6_end_main_v6_decap; ip6_sr_main_t *sm2 = &sr_main; u32 n_left_from, next_index, *from, *to_next; u32 thread_index = vm->thread_index; u32 good_n = 0, bad_n = 0; from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; while (n_left_from > 0) { u32 n_left_to_next; vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); while (n_left_from > 0 && n_left_to_next > 0) { u32 bi0; vlib_buffer_t *b0; ip6_sr_localsid_t *ls0; srv6_end_gtp6_param_t *ls_param; ip6_gtpu_header_t *hdr0 = NULL; uword len0; ip6_address_t seg0, src0; u32 teid = 0; u8 *teidp; u8 gtpu_type = 0; u8 qfi; u8 *qfip = NULL; u32 offset, shift; u32 hdrlen; ip6_header_t *encap = NULL; gtpu_pdu_session_t *sess = NULL; u32 next0 = SRV6_END_M_GTP6_D_NEXT_LOOKUP; // defaults bi0 = from[0]; to_next[0] = bi0; from += 1; to_next += 1; n_left_from -= 1; n_left_to_next -= 1; b0 = vlib_get_buffer (vm, bi0); ls0 = pool_elt_at_index (sm2->localsids, vnet_buffer (b0)->ip.adj_index[VLIB_TX]); ls_param = (srv6_end_gtp6_param_t *) ls0->plugin_mem; hdr0 = vlib_buffer_get_current (b0); hdrlen = sizeof (ip6_gtpu_header_t); len0 = vlib_buffer_length_in_chain (vm, b0); if ((hdr0->ip6.protocol != IP_PROTOCOL_UDP) || (hdr0->udp.dst_port != clib_host_to_net_u16 (SRV6_GTP_UDP_DST_PORT)) || (len0 < sizeof (ip6_gtpu_header_t))) { next0 = SRV6_END_M_GTP6_D_NEXT_DROP; bad_n++; } else { seg0 = ls_param->sr_prefix; src0 = hdr0->ip6.src_address; gtpu_type = hdr0->gtpu.type; teid = hdr0->gtpu.teid; teidp = (u8 *) & teid; if (hdr0->gtpu.ver_flags & GTPU_EXTHDR_FLAG) { // Extention header. hdrlen += sizeof (gtpu_exthdr_t); if (hdr0->gtpu.ext->nextexthdr == GTPU_EXTHDR_PDU_SESSION) { // PDU Session Container. sess = (gtpu_pdu_session_t *) (((char *) hdr0) + sizeof (ip6_gtpu_header_t) + sizeof (gtpu_exthdr_t)); qfi = sess->u.val & ~GTPU_PDU_SESSION_P_BIT_MASK; qfip = (u8 *) & qfi; hdrlen += sizeof (gtpu_pdu_session_t); if (sess->u.val & GTPU_PDU_SESSION_P_BIT_MASK) { hdrlen += sizeof (gtpu_paging_policy_t); } } } offset = ls_param->sr_prefixlen / 8; shift = ls_param->sr_prefixlen % 8; offset += 1; if (PREDICT_TRUE (shift == 0)) { clib_memcpy_fast (&seg0.as_u8[offset], teidp, 4); if (qfip) { qfi = ((qfi & GTPU_PDU_SESSION_QFI_MASK) << 2) | ((qfi & GTPU_PDU_SESSION_R_BIT_MASK) >> 5); if (sess->type) { qfi |= SRV6_PDU_SESSION_U_BIT_MASK; } seg0.as_u8[offset + 4] = qfi; } } else { int idx; for (idx = 0; idx < 4; idx++) { seg0.as_u8[offset + idx] |= teidp[idx] >> shift; seg0.as_u8[offset + idx + 1] |= teidp[idx] << (8 - shift); } if (qfip) { qfi = ((qfi & GTPU_PDU_SESSION_QFI_MASK) << 2) | ((qfi & ~GTPU_PDU_SESSION_R_BIT_MASK) >> 5); if (sess->type) { qfi |= SRV6_PDU_SESSION_U_BIT_MASK; } seg0.as_u8[offset + 4] |= qfi >> shift; seg0.as_u8[offset + 5] |= qfi << (8 - shift); } } // jump over variable length data vlib_buffer_advance (b0, (word) hdrlen); // get length of encapsulated IPv6 packet (the remaining part) len0 = vlib_buffer_length_in_chain (vm, b0); if (PREDICT_TRUE (gtpu_type == GTPU_TYPE_GTPU)) { encap = vlib_buffer_get_current (b0); } uword *p; ip6srv_combo_header_t *ip6srv; ip6_sr_policy_t *sr_policy = NULL; ip6_sr_sl_t *sl = NULL; u32 *sl_index; u32 hdr_len; p = mhash_get (&sm2->sr_policies_index_hash, &ls_param->sr_prefix); if (p) { sr_policy = pool_elt_at_index (sm2->sr_policies, p[0]); } if (sr_policy) { vec_foreach (sl_index, sr_policy->segments_lists) { sl = pool_elt_at_index (sm2->sid_lists, *sl_index); if (sl != NULL) break; } } if (sl) { hdr_len = sizeof (ip6srv_combo_header_t); hdr_len += vec_len (sl->segments) * sizeof (ip6_address_t); hdr_len += sizeof (ip6_address_t); } else { hdr_len = sizeof (ip6_header_t); if (PREDICT_FALSE (gtpu_type) != GTPU_TYPE_GTPU) { hdr_len += sizeof (ip6_sr_header_t); hdr_len += sizeof (ip6_address_t); } } // jump back to data[0] or pre_data if required vlib_buffer_advance (b0, -(word) hdr_len); ip6srv = vlib_buffer_get_current (b0); if (sl) { clib_memcpy_fast (ip6srv, sl->rewrite, vec_len (sl->rewrite)); ip6srv->ip.src_address = src0; ip6srv->ip.protocol = IP_PROTOCOL_IPV6_ROUTE; ip6srv->sr.tag = clib_host_to_net_u16 (srh_tagfield[gtpu_type]); ip6srv->sr.segments_left += 1; ip6srv->sr.last_entry += 1; ip6srv->sr.length += sizeof (ip6_address_t) / 8; ip6srv->sr.segments[0] = seg0; if (PREDICT_TRUE (encap != NULL)) { if (ls_param->nhtype == SRV6_NHTYPE_NONE) { if ((clib_net_to_host_u32 (encap->ip_version_traffic_class_and_flow_label) >> 28) == 6) ip6srv->sr.protocol = IP_PROTOCOL_IPV6; else ip6srv->sr.protocol = IP_PROTOCOL_IP_IN_IP; } else if (ls_param->nhtype == SRV6_NHTYPE_IPV4) { ip6srv->sr.protocol = IP_PROTOCOL_IP_IN_IP; if ((clib_net_to_host_u32 (encap->ip_version_traffic_class_and_flow_label) >> 28) != 4) { // Bad encap packet. next0 = SRV6_END_M_GTP6_D_NEXT_DROP; bad_n++; goto DONE; } } else if (ls_param->nhtype == SRV6_NHTYPE_IPV6) { ip6srv->sr.protocol = IP_PROTOCOL_IPV6; if ((clib_net_to_host_u32 (encap->ip_version_traffic_class_and_flow_label) >> 28) != 6) { // Bad encap packet. next0 = SRV6_END_M_GTP6_D_NEXT_DROP; bad_n++; goto DONE; } } else if (ls_param->nhtype == SRV6_NHTYPE_NON_IP) { ip6srv->sr.protocol = IP_PROTOCOL_NONE; } } else { ip6srv->sr.protocol = IP_PROTOCOL_NONE; } clib_memcpy_fast (&ip6srv->sr.segments[1], (u8 *) (sl->rewrite + sizeof (ip6_header_t) + sizeof (ip6_sr_header_t)), vec_len (sl->segments) * sizeof (ip6_address_t)); } else { clib_memcpy_fast (ip6srv, &sm->cache_hdr, sizeof (ip6_header_t)); ip6srv->ip.src_address = src0; ip6srv->ip.dst_address = seg0; if (PREDICT_FALSE (gtpu_type) != GTPU_TYPE_GTPU) { ip6srv->ip.protocol = IP_PROTOCOL_IPV6_ROUTE; ip6srv->sr.protocol = IP_PROTOCOL_NONE; ip6srv->sr.tag = clib_host_to_net_u16 (srh_tagfield[gtpu_type]); ip6srv->sr.segments_left = 0; ip6srv->sr.last_entry = 0; ip6srv->sr.length = sizeof (ip6_address_t) / 8; ip6srv->sr.segments[0] = seg0; } else { if (ls_param->nhtype == SRV6_NHTYPE_NONE) { if ((clib_net_to_host_u32 (encap->ip_version_traffic_class_and_flow_label) >> 28) != 6) ip6srv->ip.protocol = IP_PROTOCOL_IP_IN_IP; } else if (ls_param->nhtype == SRV6_NHTYPE_IPV4) { ip6srv->ip.protocol = IP_PROTOCOL_IP_IN_IP; if ((clib_net_to_host_u32 (encap->ip_version_traffic_class_and_flow_label) >> 28) != 4) { // Bad encap packet. next0 = SRV6_END_M_GTP6_D_NEXT_DROP; bad_n++; goto DONE; } } else if (ls_param->nhtype == SRV6_NHTYPE_IPV6) { ip6srv->ip.protocol = IP_PROTOCOL_IPV6; if ((clib_net_to_host_u32 (encap->ip_version_traffic_class_and_flow_label) >> 28) != 6) { // Bad encap packet. next0 = SRV6_END_M_GTP6_D_NEXT_DROP; bad_n++; goto DONE; } } else if (ls_param->nhtype == SRV6_NHTYPE_NON_IP) { ip6srv->ip.protocol = IP_PROTOCOL_NONE; } } } ip6srv->ip.payload_length = clib_host_to_net_u16 (len0 + hdr_len - sizeof (ip6_header_t)); good_n++; if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE) && PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) { srv6_end_rewrite_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr)); clib_memcpy (tr->src.as_u8, ip6srv->ip.src_address.as_u8, sizeof (ip6_address_t)); clib_memcpy (tr->dst.as_u8, ip6srv->ip.dst_address.as_u8, sizeof (ip6_address_t)); tr->teid = teid; clib_memcpy (tr->sr_prefix.as_u8, ls_param->sr_prefix.as_u8, sizeof (ip6_address_t)); tr->sr_prefixlen = ls_param->sr_prefixlen; } } DONE: vlib_increment_combined_counter (((next0 == SRV6_END_M_GTP6_D_NEXT_DROP) ? &(sm2->sr_ls_invalid_counters) : &(sm2->sr_ls_valid_counters)), thread_index, ls0 - sm2->localsids, 1, vlib_buffer_length_in_chain (vm, b0)); vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, bi0, next0); } vlib_put_next_frame (vm, node, next_index, n_left_to_next); } vlib_node_increment_counter (vm, sm->end_m_gtp6_d_node_index, SRV6_END_ERROR_M_GTP6_D_BAD_PACKETS, bad_n); vlib_node_increment_counter (vm, sm->end_m_gtp6_d_node_index, SRV6_END_ERROR_M_GTP6_D_PACKETS, good_n); return frame->n_vectors; } // Function for SRv6 GTP6.D.DI function VLIB_NODE_FN (srv6_end_m_gtp6_d_di) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { srv6_end_main_v6_decap_di_t *sm = &srv6_end_main_v6_decap_di; ip6_sr_main_t *sm2 = &sr_main; u32 n_left_from, next_index, *from, *to_next; u32 thread_index = vm->thread_index; srv6_end_gtp6_param_t *ls_param; u32 good_n = 0, bad_n = 0; from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; next_index = node->cached_next_index; while (n_left_from > 0) { u32 n_left_to_next; vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); while (n_left_from > 0 && n_left_to_next > 0) { u32 bi0; vlib_buffer_t *b0; ip6_sr_localsid_t *ls0; ip6_gtpu_header_t *hdr0 = NULL; uword len0; ip6_address_t dst0; ip6_address_t src0; ip6_address_t seg0; u32 teid = 0; u8 *teidp; u8 gtpu_type = 0; u8 qfi = 0; u8 *qfip = NULL; u32 offset, shift; u32 hdrlen; ip6_header_t *encap = NULL; gtpu_pdu_session_t *sess; u32 next0 = SRV6_END_M_GTP6_D_DI_NEXT_LOOKUP; // defaults bi0 = from[0]; to_next[0] = bi0; from += 1; to_next += 1; n_left_from -= 1; n_left_to_next -= 1; b0 = vlib_get_buffer (vm, bi0); ls0 = pool_elt_at_index (sm2->localsids, vnet_buffer (b0)->ip.adj_index[VLIB_TX]); ls_param = (srv6_end_gtp6_param_t *) ls0->plugin_mem; hdr0 = vlib_buffer_get_current (b0); hdrlen = sizeof (ip6_gtpu_header_t); len0 = vlib_buffer_length_in_chain (vm, b0); if ((hdr0->ip6.protocol != IP_PROTOCOL_UDP) || (hdr0->udp.dst_port != clib_host_to_net_u16 (SRV6_GTP_UDP_DST_PORT)) || (len0 < sizeof (ip6_gtpu_header_t))) { next0 = SRV6_END_M_GTP6_D_DI_NEXT_DROP; bad_n++; } else { dst0 = hdr0->ip6.dst_address; src0 = hdr0->ip6.src_address; gtpu_type = hdr0->gtpu.type; seg0 = ls_param->sr_prefix; teid = hdr0->gtpu.teid; teidp = (u8 *) & teid; if (hdr0->gtpu.ver_flags & GTPU_EXTHDR_FLAG) { // Extention header. hdrlen += sizeof (gtpu_exthdr_t); if (hdr0->gtpu.ext->nextexthdr == GTPU_EXTHDR_PDU_SESSION) { // PDU Session Container. sess = (gtpu_pdu_session_t *) (((char *) hdr0) + hdrlen); qfi = sess->u.val & ~GTPU_PDU_SESSION_P_BIT_MASK; qfip = &qfi; hdrlen += sizeof (gtpu_pdu_session_t); if (sess->u.val & GTPU_PDU_SESSION_P_BIT_MASK) { hdrlen += sizeof (gtpu_paging_policy_t); } } } offset = ls_param->sr_prefixlen / 8; shift = ls_param->sr_prefixlen % 8; offset += 1; if (PREDICT_TRUE (shift == 0)) { clib_memcpy_fast (&seg0.as_u8[offset], teidp, 4); if (qfip) { qfi = ((qfi & GTPU_PDU_SESSION_QFI_MASK) << 2) | ((qfi & GTPU_PDU_SESSION_R_BIT_MASK) >> 5); if (sess->type) { qfi |= SRV6_PDU_SESSION_U_BIT_MASK; } seg0.as_u8[offset + 4] = qfi; } } else { int idx; for (idx = 0; idx < 4; idx++) { seg0.as_u8[offset + idx] |= teidp[idx] >> shift; seg0.as_u8[offset + idx + 1] |= teidp[idx] << (8 - shift); } if (qfip) { qfi = ((qfi & GTPU_PDU_SESSION_QFI_MASK) << 2) | ((qfi & GTPU_PDU_SESSION_R_BIT_MASK) >> 5); if (sess->type) { qfi |= SRV6_PDU_SESSION_U_BIT_MASK; } seg0.as_u8[offset + 4] |= qfi >> shift; seg0.as_u8[offset + 5] |= qfi << (8 - shift); } } // jump over variable length data vlib_buffer_advance (b0, (word) hdrlen); // get length of encapsulated IPv6 packet (the remaining part) len0 = vlib_buffer_length_in_chain (vm, b0); if (PREDICT_TRUE (gtpu_type == GTPU_TYPE_GTPU)) { encap = vlib_buffer_get_current (b0); } uword *p; ip6srv_combo_header_t *ip6srv; ip6_sr_policy_t *sr_policy = NULL; ip6_sr_sl_t *sl = NULL; u32 *sl_index; u32 hdr_len; p = mhash_get (&sm2->sr_policies_index_hash, &ls_param->sr_prefix); if (p) { sr_policy = pool_elt_at_index (sm2->sr_policies, p[0]); } if (sr_policy) { vec_foreach (sl_index, sr_policy->segments_lists) { sl = pool_elt_at_index (sm2->sid_lists, *sl_index); if (sl != NULL) break; } } hdr_len = sizeof (ip6srv_combo_header_t); if (sl) hdr_len += vec_len (sl->segments) * sizeof (ip6_address_t); hdr_len += sizeof (ip6_address_t) * 2; // jump back to data[0] or pre_data if required vlib_buffer_advance (b0, -(word) hdr_len); ip6srv = vlib_buffer_get_current (b0); if (sl) { clib_memcpy_fast (ip6srv, sl->rewrite, vec_len (sl->rewrite)); ip6srv->ip.src_address = src0; ip6srv->sr.tag = clib_host_to_net_u16 (srh_tagfield[gtpu_type]); ip6srv->sr.segments_left += 2; ip6srv->sr.last_entry += 2; } else { clib_memcpy_fast (ip6srv, &sm->cache_hdr, sizeof (ip6_header_t)); ip6srv->ip.src_address = src0; ip6srv->ip.dst_address = seg0; ip6srv->sr.tag = clib_host_to_net_u16 (srh_tagfield[gtpu_type]); ip6srv->sr.segments_left += 1; ip6srv->sr.last_entry += 1; ip6srv->sr.type = ROUTING_HEADER_TYPE_SR; } ip6srv->ip.payload_length = clib_host_to_net_u16 (len0 + hdr_len - sizeof (ip6_header_t)); ip6srv->ip.protocol = IP_PROTOCOL_IPV6_ROUTE; if (PREDICT_TRUE (encap != NULL)) { if (ls_param->nhtype == SRV6_NHTYPE_NONE) { if ((clib_net_to_host_u32 (encap->ip_version_traffic_class_and_flow_label) >> 28) == 6) ip6srv->sr.protocol = IP_PROTOCOL_IPV6; else ip6srv->sr.protocol = IP_PROTOCOL_IP_IN_IP; } else if (ls_param->nhtype == SRV6_NHTYPE_IPV4) { ip6srv->sr.protocol = IP_PROTOCOL_IP_IN_IP; if ((clib_net_to_host_u32 (encap->ip_version_traffic_class_and_flow_label) >> 28) != 4) { // Bad encap packet. next0 = SRV6_END_M_GTP6_D_DI_NEXT_DROP; bad_n++; goto DONE; } } else if (ls_param->nhtype == SRV6_NHTYPE_IPV6) { ip6srv->sr.protocol = IP_PROTOCOL_IPV6; if ((clib_net_to_host_u32 (encap->ip_version_traffic_class_and_flow_label) >> 28) != 6) { // Bad encap packet. next0 = SRV6_END_M_GTP6_D_DI_NEXT_DROP; bad_n++; goto DONE; } } else if (ls_param->nhtype == SRV6_NHTYPE_NON_IP) { ip6srv->sr.protocol = IP_PROTOCOL_NONE; } } else { ip6srv->sr.protocol = IP_PROTOCOL_NONE; } ip6srv->sr.length += ((sizeof (ip6_address_t) * 2) / 8); ip6srv->sr.segments[0] = dst0; ip6srv->sr.segments[1] = seg0; if (sl) { clib_memcpy_fast (&ip6srv->sr.segments[2], (u8 *) (sl->rewrite + sizeof (ip6_header_t) + sizeof (ip6_sr_header_t)), vec_len (sl->segments) * sizeof (ip6_address_t)); } good_n++; if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE) && PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) { srv6_end_rewrite_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr)); clib_memcpy (tr->src.as_u8, ip6srv->ip.src_address.as_u8, sizeof (ip6_address_t)); clib_memcpy (tr->dst.as_u8, ip6srv->ip.dst_address.as_u8, sizeof (ip6_address_t)); tr->teid = teid; clib_memcpy (tr->sr_prefix.as_u8, ls_param->sr_prefix.as_u8, sizeof (ip6_address_t)); tr->sr_prefixlen = ls_param->sr_prefixlen; } } DONE: vlib_increment_combined_counter (((next0 == SRV6_END_M_GTP6_D_DI_NEXT_DROP) ? &(sm2->sr_ls_invalid_counters) : &(sm2->sr_ls_valid_counters)), thread_index, ls0 - sm2->localsids, 1, vlib_buffer_length_in_chain (vm, b0)); vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, bi0, next0); } vlib_put_next_frame (vm, node, next_index, n_left_to_next); } vlib_node_increment_counter (vm, sm->end_m_gtp6_d_di_node_index, SRV6_END_ERROR_M_GTP6_D_DI_BAD_PACKETS, bad_n); vlib_node_increment_counter (vm, sm->end_m_gtp6_d_di_node_index, SRV6_END_ERROR_M_GTP6_D_DI_PACKETS, good_n); return frame->n_vectors; } VLIB_REGISTER_NODE (srv6_end_m_gtp6_e) = { .name = "srv6-end-m-gtp6-e",.vector_size = sizeof (u32),.format_trace = format_srv6_end_rewrite_trace6,.type = VLIB_NODE_TYPE_INTERNAL,.n_errors = ARRAY_LEN (srv6_end_error_v6_e_strings),.error_strings = srv6_end_error_v6_e_strings,.n_next_nodes = SRV6_END_M_GTP6_E_N_NEXT,.next_nodes = { [SRV6_END_M_GTP6_E_NEXT_DROP] = "error-drop",[SRV6_END_M_GTP6_E_NEXT_LOOKUP] = "ip6-lookup",} ,}; VLIB_REGISTER_NODE (srv6_end_m_gtp6_d) = { .name = "srv6-end-m-gtp6-d",.vector_size = sizeof (u32),.format_trace = format_srv6_end_rewrite_trace6,.type = VLIB_NODE_TYPE_INTERNAL,.n_errors = ARRAY_LEN (srv6_end_error_v6_d_strings),.error_strings = srv6_end_error_v6_d_strings,.n_next_nodes = SRV6_END_M_GTP6_D_N_NEXT,.next_nodes = { [SRV6_END_M_GTP6_D_NEXT_DROP] = "error-drop",[SRV6_END_M_GTP6_D_NEXT_LOOKUP] = "ip6-lookup",} ,}; VLIB_REGISTER_NODE (srv6_end_m_gtp6_d_di) = { .name = "srv6-end-m-gtp6-d-di",.vector_size = sizeof (u32),.format_trace = format_srv6_end_rewrite_trace6,.type = VLIB_NODE_TYPE_INTERNAL,.n_errors = ARRAY_LEN (srv6_end_error_v6_d_di_strings),.error_strings = srv6_end_error_v6_d_di_strings,.n_next_nodes = SRV6_END_M_GTP6_D_DI_N_NEXT,.next_nodes = { [SRV6_END_M_GTP6_D_DI_NEXT_DROP] = "error-drop", [SRV6_END_M_GTP6_D_DI_NEXT_LOOKUP] = "ip6-lookup",} ,}; /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */