diff options
Diffstat (limited to 'plugins/ioam-plugin/ioam/encap/ip6_ioam_trace.c')
| -rw-r--r-- | plugins/ioam-plugin/ioam/encap/ip6_ioam_trace.c | 438 |
1 files changed, 0 insertions, 438 deletions
diff --git a/plugins/ioam-plugin/ioam/encap/ip6_ioam_trace.c b/plugins/ioam-plugin/ioam/encap/ip6_ioam_trace.c deleted file mode 100644 index e63db6e4ec5..00000000000 --- a/plugins/ioam-plugin/ioam/encap/ip6_ioam_trace.c +++ /dev/null @@ -1,438 +0,0 @@ -/* - * 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/ip6.h> -#include <vnet/ip/ip6_hop_by_hop.h> -#include <vnet/ip/ip6_hop_by_hop_packet.h> - -#include <vppinfra/hash.h> -#include <vppinfra/error.h> -#include <vppinfra/elog.h> - -#include <ioam/lib-trace/trace_util.h> - -/* Timestamp precision multipliers for seconds, milliseconds, microseconds - * and nanoseconds respectively. - */ -static f64 trace_tsp_mul[4] = { 1, 1e3, 1e6, 1e9 }; - -typedef union -{ - u64 as_u64; - u32 as_u32[2]; -} time_u64_t; - -/* *INDENT-OFF* */ -typedef CLIB_PACKED(struct { - ip6_hop_by_hop_option_t hdr; - u8 ioam_trace_type; - u8 data_list_elts_left; - u32 elts[0]; /* Variable type. So keep it generic */ -}) ioam_trace_option_t; -/* *INDENT-ON* */ - - -extern ip6_hop_by_hop_ioam_main_t ip6_hop_by_hop_ioam_main; -extern ip6_main_t ip6_main; - -#define foreach_ip6_hop_by_hop_ioam_trace_stats \ - _(PROCESSED, "Pkts with ip6 hop-by-hop trace options") \ - _(PROFILE_MISS, "Pkts with ip6 hop-by-hop trace options but no profile set") \ - _(UPDATED, "Pkts with trace updated") \ - _(FULL, "Pkts with trace options but no space") - -static char *ip6_hop_by_hop_ioam_trace_stats_strings[] = { -#define _(sym,string) string, - foreach_ip6_hop_by_hop_ioam_trace_stats -#undef _ -}; - -typedef enum -{ -#define _(sym,str) IP6_IOAM_TRACE_##sym, - foreach_ip6_hop_by_hop_ioam_trace_stats -#undef _ - IP6_IOAM_TRACE_N_STATS, -} ip6_ioam_trace_stats_t; - - -typedef struct -{ - /* stats */ - u64 counters[ARRAY_LEN (ip6_hop_by_hop_ioam_trace_stats_strings)]; - - /* convenience */ - vlib_main_t *vlib_main; - vnet_main_t *vnet_main; -} ip6_hop_by_hop_ioam_trace_main_t; - -ip6_hop_by_hop_ioam_trace_main_t ip6_hop_by_hop_ioam_trace_main; - -always_inline void -ip6_ioam_trace_stats_increment_counter (u32 counter_index, u64 increment) -{ - ip6_hop_by_hop_ioam_trace_main_t *hm = &ip6_hop_by_hop_ioam_trace_main; - - hm->counters[counter_index] += increment; -} - - -static u8 * -format_ioam_data_list_element (u8 * s, va_list * args) -{ - u32 *elt = va_arg (*args, u32 *); - u8 *trace_type_p = va_arg (*args, u8 *); - u8 trace_type = *trace_type_p; - - - if (trace_type & BIT_TTL_NODEID) - { - u32 ttl_node_id_host_byte_order = clib_net_to_host_u32 (*elt); - s = format (s, "ttl 0x%x node id 0x%x ", - ttl_node_id_host_byte_order >> 24, - ttl_node_id_host_byte_order & 0x00FFFFFF); - - elt++; - } - - if (trace_type & BIT_ING_INTERFACE && trace_type & BIT_ING_INTERFACE) - { - u32 ingress_host_byte_order = clib_net_to_host_u32 (*elt); - s = format (s, "ingress 0x%x egress 0x%x ", - ingress_host_byte_order >> 16, - ingress_host_byte_order & 0xFFFF); - elt++; - } - - if (trace_type & BIT_TIMESTAMP) - { - u32 ts_in_host_byte_order = clib_net_to_host_u32 (*elt); - s = format (s, "ts 0x%x \n", ts_in_host_byte_order); - elt++; - } - - if (trace_type & BIT_APPDATA) - { - u32 appdata_in_host_byte_order = clib_net_to_host_u32 (*elt); - s = format (s, "app 0x%x ", appdata_in_host_byte_order); - elt++; - } - - return s; -} - - -int -ip6_ioam_trace_get_sizeof_handler (u32 * result) -{ - u16 size = 0; - u8 trace_data_size = 0; - trace_profile *profile = NULL; - - *result = 0; - - profile = trace_profile_find (); - - if (PREDICT_FALSE (!profile)) - { - ip6_ioam_trace_stats_increment_counter (IP6_IOAM_TRACE_PROFILE_MISS, 1); - return (-1); - } - - trace_data_size = fetch_trace_data_size (profile->trace_type); - if (PREDICT_FALSE (trace_data_size == 0)) - return VNET_API_ERROR_INVALID_VALUE; - - if (PREDICT_FALSE (profile->num_elts * trace_data_size > 254)) - return VNET_API_ERROR_INVALID_VALUE; - - size += - sizeof (ioam_trace_option_t) + (profile->num_elts * trace_data_size); - *result = size; - - return 0; -} - - - -int -ip6_hop_by_hop_ioam_trace_rewrite_handler (u8 * rewrite_string, - u8 * rewrite_size) -{ - ioam_trace_option_t *trace_option = NULL; - u8 trace_data_size = 0; - u8 trace_option_elts = 0; - trace_profile *profile = NULL; - - - profile = trace_profile_find (); - - if (PREDICT_FALSE (!profile)) - { - ip6_ioam_trace_stats_increment_counter (IP6_IOAM_TRACE_PROFILE_MISS, 1); - return (-1); - } - - if (PREDICT_FALSE (!rewrite_string)) - return -1; - - trace_option_elts = profile->num_elts; - trace_data_size = fetch_trace_data_size (profile->trace_type); - trace_option = (ioam_trace_option_t *) rewrite_string; - trace_option->hdr.type = HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST | - HBH_OPTION_TYPE_DATA_CHANGE_ENROUTE; - trace_option->hdr.length = 2 /*ioam_trace_type,data_list_elts_left */ + - trace_option_elts * trace_data_size; - trace_option->ioam_trace_type = profile->trace_type & TRACE_TYPE_MASK; - trace_option->data_list_elts_left = trace_option_elts; - *rewrite_size = - sizeof (ioam_trace_option_t) + (trace_option_elts * trace_data_size); - - return 0; -} - - -int -ip6_hbh_ioam_trace_data_list_handler (vlib_buffer_t * b, ip6_header_t * ip, - ip6_hop_by_hop_option_t * opt) -{ - ip6_main_t *im = &ip6_main; - ip_lookup_main_t *lm = &im->lookup_main; - ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main; - u8 elt_index = 0; - ioam_trace_option_t *trace = (ioam_trace_option_t *) opt; - u32 adj_index = vnet_buffer (b)->ip.adj_index[VLIB_TX]; - ip_adjacency_t *adj = ip_get_adjacency (lm, adj_index); - time_u64_t time_u64; - u32 *elt; - int rv = 0; - trace_profile *profile = NULL; - - - profile = trace_profile_find (); - - if (PREDICT_FALSE (!profile)) - { - ip6_ioam_trace_stats_increment_counter (IP6_IOAM_TRACE_PROFILE_MISS, 1); - return (-1); - } - - - time_u64.as_u64 = 0; - - if (PREDICT_TRUE (trace->data_list_elts_left)) - { - trace->data_list_elts_left--; - /* fetch_trace_data_size returns in bytes. Convert it to 4-bytes - * to skip to this node's location. - */ - elt_index = - trace->data_list_elts_left * - fetch_trace_data_size (trace->ioam_trace_type) / 4; - elt = &trace->elts[elt_index]; - if (trace->ioam_trace_type & BIT_TTL_NODEID) - { - *elt = - clib_host_to_net_u32 ((ip->hop_limit << 24) | profile->node_id); - elt++; - } - - if (trace->ioam_trace_type & BIT_ING_INTERFACE) - { - *elt = - (vnet_buffer (b)->sw_if_index[VLIB_RX] & 0xFFFF) << 16 | - (adj->rewrite_header.sw_if_index & 0xFFFF); - *elt = clib_host_to_net_u32 (*elt); - elt++; - } - - if (trace->ioam_trace_type & BIT_TIMESTAMP) - { - /* Send least significant 32 bits */ - f64 time_f64 = - (f64) (((f64) hm->unix_time_0) + - (vlib_time_now (hm->vlib_main) - hm->vlib_time_0)); - - time_u64.as_u64 = time_f64 * trace_tsp_mul[profile->trace_tsp]; - *elt = clib_host_to_net_u32 (time_u64.as_u32[0]); - elt++; - } - - if (trace->ioam_trace_type & BIT_APPDATA) - { - /* $$$ set elt0->app_data */ - *elt = clib_host_to_net_u32 (profile->app_data); - elt++; - } - ip6_ioam_trace_stats_increment_counter (IP6_IOAM_TRACE_UPDATED, 1); - } - else - { - ip6_ioam_trace_stats_increment_counter (IP6_IOAM_TRACE_FULL, 1); - } - return (rv); -} - -u8 * -ip6_hbh_ioam_trace_data_list_trace_handler (u8 * s, - ip6_hop_by_hop_option_t * opt) -{ - ioam_trace_option_t *trace; - u8 trace_data_size_in_words = 0; - u32 *elt; - int elt_index = 0; - - trace = (ioam_trace_option_t *) opt; - s = - format (s, " Trace Type 0x%x , %d elts left\n", trace->ioam_trace_type, - trace->data_list_elts_left); - trace_data_size_in_words = - fetch_trace_data_size (trace->ioam_trace_type) / 4; - elt = &trace->elts[0]; - while ((u8 *) elt < ((u8 *) (&trace->elts[0]) + trace->hdr.length - 2 - /* -2 accounts for ioam_trace_type,elts_left */ )) - { - s = format (s, " [%d] %U\n", elt_index, - format_ioam_data_list_element, - elt, &trace->ioam_trace_type); - elt_index++; - elt += trace_data_size_in_words; - } - return (s); -} - - -static clib_error_t * -ip6_show_ioam_trace_cmd_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) -{ - ip6_hop_by_hop_ioam_trace_main_t *hm = &ip6_hop_by_hop_ioam_trace_main; - u8 *s = 0; - int i = 0; - - for (i = 0; i < IP6_IOAM_TRACE_N_STATS; i++) - { - s = - format (s, " %s - %lu\n", ip6_hop_by_hop_ioam_trace_stats_strings[i], - hm->counters[i]); - } - - vlib_cli_output (vm, "%v", s); - vec_free (s); - return 0; -} - - -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (ip6_show_ioam_trace_cmd, static) = { - .path = "show ioam trace", - .short_help = "iOAM trace statistics", - .function = ip6_show_ioam_trace_cmd_fn, -}; -/* *INDENT-ON* */ - - -static clib_error_t * -ip6_hop_by_hop_ioam_trace_init (vlib_main_t * vm) -{ - ip6_hop_by_hop_ioam_trace_main_t *hm = &ip6_hop_by_hop_ioam_trace_main; - clib_error_t *error; - - if ((error = vlib_call_init_function (vm, ip_main_init))) - return (error); - - if ((error = vlib_call_init_function (vm, ip6_lookup_init))) - return error; - - if ((error = vlib_call_init_function (vm, ip6_hop_by_hop_ioam_init))) - return (error); - - hm->vlib_main = vm; - hm->vnet_main = vnet_get_main (); - memset (hm->counters, 0, sizeof (hm->counters)); - - - if (ip6_hbh_register_option - (HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST, - ip6_hbh_ioam_trace_data_list_handler, - ip6_hbh_ioam_trace_data_list_trace_handler) < 0) - return (clib_error_create - ("registration of HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST failed")); - - - if (ip6_hbh_add_register_option (HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST, - sizeof (ioam_trace_option_t), - ip6_hop_by_hop_ioam_trace_rewrite_handler) - < 0) - return (clib_error_create - ("registration of HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST for rewrite failed")); - - - return (0); -} - -int -ip6_trace_profile_cleanup (void) -{ - ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main; - - hm->options_size[HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST] = 0; - - return 0; - -} - - -int -ip6_trace_profile_setup (void) -{ - u32 trace_size = 0; - ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main; - - trace_profile *profile = NULL; - - - profile = trace_profile_find (); - - if (PREDICT_FALSE (!profile)) - { - ip6_ioam_trace_stats_increment_counter (IP6_IOAM_TRACE_PROFILE_MISS, 1); - return (-1); - } - - - if (ip6_ioam_trace_get_sizeof_handler (&trace_size) < 0) - return (-1); - - hm->options_size[HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST] = trace_size; - - return (0); -} - - -VLIB_INIT_FUNCTION (ip6_hop_by_hop_ioam_trace_init); - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |