diff options
Diffstat (limited to 'plugins/ioam-plugin/ioam/lib-vxlan-gpe/ioam_pop.c')
| -rw-r--r-- | plugins/ioam-plugin/ioam/lib-vxlan-gpe/ioam_pop.c | 353 |
1 files changed, 0 insertions, 353 deletions
diff --git a/plugins/ioam-plugin/ioam/lib-vxlan-gpe/ioam_pop.c b/plugins/ioam-plugin/ioam/lib-vxlan-gpe/ioam_pop.c deleted file mode 100644 index 55c33b144a1..00000000000 --- a/plugins/ioam-plugin/ioam/lib-vxlan-gpe/ioam_pop.c +++ /dev/null @@ -1,353 +0,0 @@ -/* - * Copyright (c) 2015 Cisco 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 <vppinfra/error.h> -#include <vppinfra/hash.h> -#include <vnet/vnet.h> -#include <vnet/ip/ip.h> -#include <vnet/ethernet/ethernet.h> -#include <vnet/vxlan-gpe/vxlan_gpe.h> -#include <ioam/lib-vxlan-gpe/vxlan_gpe_ioam.h> - -/* Statistics (not really errors) */ -#define foreach_vxlan_gpe_pop_ioam_v4_error \ -_(POPPED, "good packets popped") - -static char *vxlan_gpe_pop_ioam_v4_error_strings[] = { -#define _(sym,string) string, - foreach_vxlan_gpe_pop_ioam_v4_error -#undef _ -}; - -typedef enum -{ -#define _(sym,str) VXLAN_GPE_POP_IOAM_V4_ERROR_##sym, - foreach_vxlan_gpe_pop_ioam_v4_error -#undef _ - VXLAN_GPE_POP_IOAM_V4_N_ERROR, -} vxlan_gpe_pop_ioam_v4_error_t; - -typedef struct -{ - ioam_trace_t fmt_trace; -} vxlan_gpe_pop_ioam_v4_trace_t; - - -u8 * -format_vxlan_gpe_pop_ioam_v4_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 *); - vxlan_gpe_pop_ioam_v4_trace_t *t1 - = va_arg (*args, vxlan_gpe_pop_ioam_v4_trace_t *); - ioam_trace_t *t = &(t1->fmt_trace); - vxlan_gpe_ioam_option_t *fmt_trace0; - vxlan_gpe_ioam_option_t *opt0, *limit0; - vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main; - - u8 type0; - - fmt_trace0 = (vxlan_gpe_ioam_option_t *) t->option_data; - - s = format (s, "VXLAN_GPE_IOAM_POP: next_index %d len %d traced %d", - t->next_index, fmt_trace0->length, t->trace_len); - - opt0 = (vxlan_gpe_ioam_option_t *) (fmt_trace0 + 1); - limit0 = (vxlan_gpe_ioam_option_t *) ((u8 *) fmt_trace0) + t->trace_len; - - while (opt0 < limit0) - { - type0 = opt0->type; - switch (type0) - { - case 0: /* Pad, just stop */ - opt0 = (vxlan_gpe_ioam_option_t *) ((u8 *) opt0) + 1; - break; - - default: - if (hm->trace[type0]) - { - s = (*hm->trace[type0]) (s, opt0); - } - else - { - s = - format (s, "\n unrecognized option %d length %d", type0, - opt0->length); - } - opt0 = - (vxlan_gpe_ioam_option_t *) (((u8 *) opt0) + opt0->length + - sizeof (vxlan_gpe_ioam_option_t)); - break; - } - } - - return s; -} - -always_inline void -vxlan_gpe_ioam_pop_v4 (vlib_main_t * vm, vlib_node_runtime_t * node, - vlib_buffer_t * b0) -{ - ip4_header_t *ip0; - udp_header_t *udp_hdr0; - vxlan_gpe_header_t *gpe_hdr0; - vxlan_gpe_ioam_hdr_t *gpe_ioam0; - - ip0 = vlib_buffer_get_current (b0); - - udp_hdr0 = (udp_header_t *) (ip0 + 1); - gpe_hdr0 = (vxlan_gpe_header_t *) (udp_hdr0 + 1); - gpe_ioam0 = (vxlan_gpe_ioam_hdr_t *) (gpe_hdr0 + 1); - - /* Pop the iOAM data */ - vlib_buffer_advance (b0, - (word) (sizeof (udp_header_t) + - sizeof (ip4_header_t) + - sizeof (vxlan_gpe_header_t) + - gpe_ioam0->length)); - - return; -} - - - -always_inline void -vxlan_gpe_pop_ioam_v4_one_inline (vlib_main_t * vm, - vlib_node_runtime_t * node, - vxlan_gpe_main_t * ngm, - vlib_buffer_t * b0, u32 * next0) -{ - CLIB_UNUSED (ip4_header_t * ip0); - CLIB_UNUSED (udp_header_t * udp_hdr0); - CLIB_UNUSED (vxlan_gpe_header_t * gpe_hdr0); - CLIB_UNUSED (vxlan_gpe_ioam_hdr_t * gpe_ioam0); - CLIB_UNUSED (vxlan_gpe_ioam_option_t * opt0); - CLIB_UNUSED (vxlan_gpe_ioam_option_t * limit0); - vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main; - - - /* Pop the iOAM header */ - ip0 = vlib_buffer_get_current (b0); - udp_hdr0 = (udp_header_t *) (ip0 + 1); - gpe_hdr0 = (vxlan_gpe_header_t *) (udp_hdr0 + 1); - gpe_ioam0 = (vxlan_gpe_ioam_hdr_t *) (gpe_hdr0 + 1); - opt0 = (vxlan_gpe_ioam_option_t *) (gpe_ioam0 + 1); - limit0 = (vxlan_gpe_ioam_option_t *) ((u8 *) gpe_ioam0 + gpe_ioam0->length); - - /* - * Basic validity checks - */ - if (gpe_ioam0->length > clib_net_to_host_u16 (ip0->length)) - { - next0[0] = VXLAN_GPE_INPUT_NEXT_DROP; - goto trace00; - } - - /* Scan the set of h-b-h options, process ones that we understand */ - while (opt0 < limit0) - { - u8 type0; - type0 = opt0->type; - switch (type0) - { - case 0: /* Pad1 */ - opt0 = (vxlan_gpe_ioam_option_t *) ((u8 *) opt0) + 1; - continue; - case 1: /* PadN */ - break; - default: - if (hm->pop_options[type0]) - { - if ((*hm->pop_options[type0]) (ip0, opt0) < 0) - { - next0[0] = VXLAN_GPE_INPUT_NEXT_DROP; - goto trace00; - } - } - break; - } - opt0 = - (vxlan_gpe_ioam_option_t *) (((u8 *) opt0) + opt0->length + - sizeof (vxlan_gpe_ioam_hdr_t)); - } - - - next0[0] = - (gpe_ioam0->protocol < VXLAN_GPE_PROTOCOL_MAX) ? - ngm-> - decap_next_node_list[gpe_ioam0->protocol] : VXLAN_GPE_INPUT_NEXT_DROP; - -trace00: - if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) - { - vxlan_gpe_pop_ioam_v4_trace_t *t = - vlib_add_trace (vm, node, b0, sizeof (*t)); - u32 trace_len = gpe_ioam0->length; - t->fmt_trace.next_index = next0[0]; - /* Capture the h-b-h option verbatim */ - trace_len = - trace_len < - ARRAY_LEN (t->fmt_trace. - option_data) ? trace_len : ARRAY_LEN (t->fmt_trace. - option_data); - t->fmt_trace.trace_len = trace_len; - clib_memcpy (&(t->fmt_trace.option_data), gpe_ioam0, trace_len); - } - - /* Remove the iOAM header inside the VxLAN-GPE header */ - vxlan_gpe_ioam_pop_v4 (vm, node, b0); - return; -} - -always_inline void -vxlan_gpe_pop_ioam_v4_two_inline (vlib_main_t * vm, - vlib_node_runtime_t * node, - vxlan_gpe_main_t * ngm, - vlib_buffer_t * b0, vlib_buffer_t * b1, - u32 * next0, u32 * next1) -{ - - vxlan_gpe_pop_ioam_v4_one_inline (vm, node, ngm, b0, next0); - vxlan_gpe_pop_ioam_v4_one_inline (vm, node, ngm, b1, next1); -} - - - -static uword -vxlan_gpe_pop_ioam (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * from_frame, u8 is_ipv6) -{ - u32 n_left_from, next_index, *from, *to_next; - vxlan_gpe_main_t *ngm = &vxlan_gpe_main; - - from = vlib_frame_vector_args (from_frame); - n_left_from = 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 >= 4 && n_left_to_next >= 2) - { - u32 bi0, bi1; - vlib_buffer_t *b0, *b1; - u32 next0, next1; - - /* Prefetch next iteration. */ - { - vlib_buffer_t *p2, *p3; - - p2 = vlib_get_buffer (vm, from[2]); - p3 = vlib_get_buffer (vm, from[3]); - - vlib_prefetch_buffer_header (p2, LOAD); - vlib_prefetch_buffer_header (p3, LOAD); - - CLIB_PREFETCH (p2->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD); - CLIB_PREFETCH (p3->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD); - } - - bi0 = from[0]; - bi1 = from[1]; - to_next[0] = bi0; - to_next[1] = bi1; - from += 2; - to_next += 2; - n_left_to_next -= 2; - n_left_from -= 2; - - b0 = vlib_get_buffer (vm, bi0); - b1 = vlib_get_buffer (vm, bi1); - - vxlan_gpe_pop_ioam_v4_two_inline (vm, node, ngm, b0, b1, &next0, - &next1); - - - vlib_validate_buffer_enqueue_x2 (vm, node, next_index, to_next, - n_left_to_next, bi0, bi1, next0, - next1); - } - - while (n_left_from > 0 && n_left_to_next > 0) - { - u32 bi0; - vlib_buffer_t *b0; - u32 next0; - - 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); - - vxlan_gpe_pop_ioam_v4_one_inline (vm, node, ngm, b0, &next0); - - - 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); - } - - return from_frame->n_vectors; -} - - -static uword -vxlan_gpe_pop_ioam_v4 (vlib_main_t * vm, - vlib_node_runtime_t * node, vlib_frame_t * from_frame) -{ - return vxlan_gpe_pop_ioam (vm, node, from_frame, 0); -} - -/* *INDENT-OFF* */ -VLIB_REGISTER_NODE (vxlan_gpe_pop_ioam_v4_node) = { - .function = vxlan_gpe_pop_ioam_v4, - .name = "vxlan-gpe-pop-ioam-v4", - .vector_size = sizeof (u32), - .format_trace = format_vxlan_gpe_pop_ioam_v4_trace, - .type = VLIB_NODE_TYPE_INTERNAL, - - .n_errors = ARRAY_LEN(vxlan_gpe_pop_ioam_v4_error_strings), - .error_strings = vxlan_gpe_pop_ioam_v4_error_strings, - - .n_next_nodes = VXLAN_GPE_INPUT_N_NEXT, - - .next_nodes = { -#define _(s,n) [VXLAN_GPE_INPUT_NEXT_##s] = n, - foreach_vxlan_gpe_input_next -#undef _ - }, -}; -/* *INDENT-ON* */ - - - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |