+++ /dev/null
-/*
- * Copyright (c) 2016 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 <vlib/vlib.h>
-#include <vnet/vnet.h>
-#include <vnet/pg/pg.h>
-#include <vppinfra/error.h>
-
-#include <vnet/ip/ip.h>
-
-#include <vppinfra/hash.h>
-#include <vppinfra/error.h>
-#include <vppinfra/elog.h>
-
-#include <vnet/ip/ip6_hop_by_hop.h>
-#include <vnet/plugin/plugin.h>
-
-#include "ip6_ioam_e2e.h"
-
-ioam_e2e_main_t ioam_e2e_main;
-
-static u8 * ioam_e2e_trace_handler (u8 * s,
- ip6_hop_by_hop_option_t *opt)
-{
- ioam_e2e_option_t * e2e = (ioam_e2e_option_t *)opt;
- u32 seqno = 0;
-
- if (e2e)
- {
- seqno = clib_net_to_host_u32 (e2e->e2e_data);
- }
-
- s = format (s, "SeqNo = 0x%Lx", seqno);
- return s;
-}
-
-int
-ioam_e2e_config_handler (void *data, u8 disable)
-{
- int *analyse = data;
-
- /* Register hanlders if enabled */
- if (!disable)
- {
- /* If encap node register for encap handler */
- if (0 == *analyse)
- {
- if (ip6_hbh_register_option(HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE,
- ioam_seqno_encap_handler,
- ioam_e2e_trace_handler) < 0)
- {
- return (-1);
- }
- }
- /* If analyze node then register for decap handler */
- else
- {
- if (ip6_hbh_pop_register_option(HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE,
- ioam_seqno_decap_handler) < 0)
- {
- return (-1);
- }
- }
- return 0;
- }
-
- /* UnRegister handlers */
- (void) ip6_hbh_unregister_option(HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE);
- (void) ip6_hbh_pop_unregister_option(HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE);
- return 0;
-}
-
-int
-ioam_e2e_rewrite_handler (u8 *rewrite_string,
- u8 *rewrite_size)
-{
- ioam_e2e_option_t *e2e_option;
-
- if (rewrite_string && *rewrite_size == sizeof(ioam_e2e_option_t))
- {
- e2e_option = (ioam_e2e_option_t *)rewrite_string;
- e2e_option->hdr.type = HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE
- | HBH_OPTION_TYPE_SKIP_UNKNOWN;
- e2e_option->hdr.length = sizeof (ioam_e2e_option_t) -
- sizeof (ip6_hop_by_hop_option_t);
- return(0);
- }
- return(-1);
-}
-
-u32
-ioam_e2e_flow_handler (u32 ctx, u8 add)
-{
- ioam_e2e_data_t *data;
- u16 i;
-
- if (add)
- {
- pool_get(ioam_e2e_main.e2e_data, data);
- data->flow_ctx = ctx;
- ioam_seqno_init_bitmap(&data->seqno_data);
- return ((u32) (data - ioam_e2e_main.e2e_data));
- }
-
- /* Delete case */
- for (i = 0; i < vec_len(ioam_e2e_main.e2e_data); i++)
- {
- if (pool_is_free_index(ioam_e2e_main.e2e_data, i))
- continue;
-
- data = pool_elt_at_index(ioam_e2e_main.e2e_data, i);
- if (data && (data->flow_ctx == ctx))
- {
- pool_put_index(ioam_e2e_main.e2e_data, i);
- return (0);
- }
- }
- return 0;
-}
-
-static clib_error_t *
-ioam_show_e2e_cmd_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- ioam_e2e_data_t *e2e_data;
- u8 *s = 0;
- int i;
-
- vec_reset_length(s);
-
- s = format(0, "IOAM E2E information: \n");
- for (i = 0; i < vec_len(ioam_e2e_main.e2e_data); i++)
- {
- if (pool_is_free_index(ioam_e2e_main.e2e_data, i))
- continue;
-
- e2e_data = pool_elt_at_index(ioam_e2e_main.e2e_data, i);
- s = format(s, "Flow name: %s\n", get_flow_name_from_flow_ctx(e2e_data->flow_ctx));
-
- s = show_ioam_seqno_cmd_fn(s,
- &e2e_data->seqno_data,
- !IOAM_DEAP_ENABLED(e2e_data->flow_ctx));
- }
-
- vlib_cli_output(vm, "%v", s);
- return 0;
-}
-
-
-VLIB_CLI_COMMAND (ioam_show_e2e_cmd, static) = {
- .path = "show ioam e2e ",
- .short_help = "show ioam e2e information",
- .function = ioam_show_e2e_cmd_fn,
-};
-
-/*
- * This routine exists to convince the vlib plugin framework that
- * we haven't accidentally copied a random .dll into the plugin directory.
- *
- * Also collects global variable pointers passed from the vpp engine
- */
-clib_error_t *
-vlib_plugin_register (vlib_main_t * vm, vnet_plugin_handoff_t * h,
- int from_early_init)
-{
- clib_error_t * error = 0;
-
- ioam_e2e_main.vlib_main = vm;
- ioam_e2e_main.vnet_main = h->vnet_main;
- return error;
-}
-
-/*
- * Init handler E2E headet handling.
- * Init hanlder registers encap, decap, trace and Rewrite handlers.
- */
-static clib_error_t *
-ioam_e2e_init (vlib_main_t * vm)
-{
- clib_error_t * error;
-
- if ((error = vlib_call_init_function (vm, ip6_hop_by_hop_ioam_init)))
- {
- return(error);
- }
-
- /*
- * As of now we have only PPC under E2E header.
- */
- if (ip6_hbh_config_handler_register(HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE,
- ioam_e2e_config_handler) < 0)
- {
- return (clib_error_create("Registration of "
- "HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE for rewrite failed"));
- }
-
- if (ip6_hbh_add_register_option(HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE,
- sizeof(ioam_e2e_option_t),
- ioam_e2e_rewrite_handler) < 0)
- {
- return (clib_error_create("Registration of "
- "HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE for rewrite failed"));
- }
-
- if (ip6_hbh_flow_handler_register(HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE,
- ioam_e2e_flow_handler) < 0)
- {
- return (clib_error_create("Registration of "
- "HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE Flow handler failed"));
- }
-
- return (0);
-}
-
-/*
- * Init function for the E2E lib.
- * ip6_hop_by_hop_ioam_e2e_init gets called during init.
- */
-VLIB_INIT_FUNCTION (ioam_e2e_init);
Code Review / vpp.git / blobdiff