/*
* 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.
*/
/**
* @file
* @brief Common utility functions for IPv4, IPv6 and L2 LISP-GPE adjacencys.
*
*/
#ifndef LISP_GPE_ADJACENCY_H__
#define LISP_GPE_ADJACENCY_H__
#include <vnet/fib/fib_node.h>
#include <vnet/lisp-gpe/lisp_gpe.h>
/**
* @brief A LISP GPE Adjacency.
*
* A adjacency represents peer on an L3 sub-interface to which to send traffic.
* adjacencies are thus present in the EID space.
* The peer is identified by the key:{remote-rloc, sub-interface}, which is
* equivalent to the usal adjacency key {next-hop, interface}. So curiously
* the rloc address from the underlay is used as a next hop address in the overlay
* This is OK because:
* 1 - the RLOC is unique in the underlay AND there is only one underlay VRF per
* overlay
* 2 - the RLOC may overlap with an address in the overlay, but we do not create
* an adj-fib (i.e. a route in the overlay FIB for the rloc)
*
*
*/
typedef struct lisp_gpe_adjacency_t_
{
/**
* The LISP adj is a part of the FIB control plane graph.
*/
fib_node_t fib_node;
/**
* remote RLOC. The adjacency's next-hop
*/
ip_address_t remote_rloc;
/**
* The VNI. Used in combination with the local-rloc to get the sub-interface
*/
u32 vni;
/**
* The number of locks/reference counts on the adjacency.
*/
u32 locks;
/**
* The index of the LISP L3 subinterface
*/
u32 lisp_l3_sub_index;
/**
* The SW IF index of the sub-interface this adjacency uses.
* Cached for convenience from the LISP L3 sub-interface
*/
u32 sw_if_index;
/**
* The index of the LISP GPE tunnel that provides the transport
* in the underlay.
*/
u32 tunnel_index;
/**
* This adjacency is a child of the FIB entry to reach the RLOC.
* This is so when the reachability of that RLOC changes, we can restack
* the FIB adjacnecies.
*/
u32 fib_entry_child_index;
/**
* LISP header fields in HOST byte order
*/
u8 flags;
u8 ver_res;
u8 res;
u8 next_protocol;
} lisp_gpe_adjacency_t;
extern index_t lisp_gpe_adjacency_find_or_create_and_lock (const
locator_pair_t *
pair,
u32 rloc_fib_index,
u32 vni);
extern void lisp_gpe_adjacency_unlock (index_t l3si);
extern const lisp_gpe_adjacency_t *lisp_gpe_adjacency_get (index_t l3si);
extern void lisp_gpe_update_adjacency (vnet_main_t * vnm,
u32 sw_if_index, adj_index_t ai);
extern u8 *lisp_gpe_build_rewrite (vnet_main_t * vnm,
u32 sw_if_index,
vnet_link_t link_type,
const void *dst_address);
/**
* @brief Flags for displaying the adjacency
*/
typedef enum lisp_gpe_adjacency_format_flags_t_
{
LISP_GPE_ADJ_FORMAT_FLAG_NONE.highlight .hll { background-color: #ffffcc }
.highlight .c { color: #888888 } /* Comment */
.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
.highlight .k { color: #008800; font-weight: bold } /* Keyword */
.highlight .ch { color: #888888 } /* Comment.Hashbang */
.highlight .cm { color: #888888 } /* Comment.Multiline */
.highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */
.highlight .cpf { color: #888888 } /* Comment.PreprocFile */
.highlight .c1 { color: #888888 } /* Comment.Single */
.highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */
.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .gr { color: #aa0000 } /* Generic.Error */
.highlight .gh { color: #333333 } /* Generic.Heading */
.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
.highlight .go { color: #888888 } /* Generic.Output */
.highlight .gp { color: #555555 } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #666666 } /* Generic.Subheading */
.highlight .gt { color: #aa0000 } /* Generic.Traceback */
.highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: #008800 } /* Keyword.Pseudo */
.highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */
.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
.highlight .na { color: #336699 } /* Name.Attribute */
.highlight .nb { color: #003388 } /* Name.Builtin */
.highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */
.highlight .no { color: #003366; font-weight: bold } /* Name.Constant */
.highlight .nd { color: #555555 } /* Name.Decorator */
.highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
.highlight .nl { color: #336699; font-style: italic } /* Name.Label */
.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #336699 } /* Name.Variable */
.highlight .ow { color: #008800 } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
.highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */
.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
.highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */
.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
.highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */
.highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */
.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
.highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */
.highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */
.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long *//*
* 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 <vpp/app/version.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 <vnet/plugin/plugin.h>
#include <ioam/lib-trace/trace_util.h>
#include <ioam/lib-trace/trace_config.h>
#include <ioam/encap/ip6_ioam_trace.h>
#include <ioam/udp-ping/udp_ping.h>
#include <ioam/udp-ping/udp_ping_packet.h>
#include <ioam/udp-ping/udp_ping_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;
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") \
_(LOOPBACK, "Pkts with trace options Loopback") \
_(LOOPBACK_REPLY, "Pkts with trace options Loopback Reply")
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->trace_hdr.ioam_trace_type =
profile->trace_type & TRACE_TYPE_MASK;
trace_option->trace_hdr.data_list_elts_left = trace_option_elts;
*rewrite_size =
sizeof (ioam_trace_option_t) + (trace_option_elts * trace_data_size);
return 0;
}
always_inline void
ip6_hbh_ioam_loopback_handler (vlib_buffer_t * b, ip6_header_t * ip,
ioam_trace_option_t * trace)
{
u32 buf_index;
ip6_hop_by_hop_ioam_main_t *hm = &ip6_hop_by_hop_ioam_main;
vlib_buffer_t *b0;
vlib_frame_t *nf = 0;
u32 *to_next;
vlib_node_t *next_node;
ip6_header_t *ip6;
ip6_hop_by_hop_header_t *hbh;
ioam_trace_option_t *opt;
udp_ping_t *udp;
next_node = vlib_get_node_by_name (hm->vlib_main, (u8 *) "ip6-lookup");
nf = vlib_get_frame_to_node (hm->vlib_main, next_node->index);
nf->n_vectors = 0;
to_next = vlib_frame_vector_args (nf);
b0 = vlib_buffer_copy (hm->vlib_main, b);
buf_index = vlib_get_buffer_index (hm->vlib_main, b0);
vnet_buffer (b0)->sw_if_index[VLIB_RX] = 0;
vnet_buffer (b0)->sw_if_index[VLIB_TX] = ~0;
ip6 = vlib_buffer_get_current (b0);
hbh = (ip6_hop_by_hop_header_t *) (ip6 + 1);
opt = (ioam_trace_option_t *)
ip6_hbh_get_option (hbh, HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST);
udp = (udp_ping_t *) ((u8 *) hbh + ((hbh->length + 1) << 3));
udp_ping_create_reply_from_probe_ip6 (ip6, hbh, udp);
ip6_hbh_ioam_trace_set_bit (opt, BIT_LOOPBACK_REPLY);
*to_next = buf_index;
nf->n_vectors++;
to_next++;
vlib_put_frame_to_node (hm->vlib_main, next_node->index, nf);
ip6_ioam_trace_stats_increment_counter (IP6_IOAM_TRACE_LOOPBACK, 1);
}
int
ip6_hbh_ioam_trace_data_list_handler (vlib_buffer_t * b, ip6_header_t * ip,
ip6_hop_by_hop_option_t * opt)
{
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 = adj_get (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);
}
/* Don't trace loopback reply packets */
if (trace->trace_hdr.ioam_trace_type & BIT_LOOPBACK_REPLY)
{
ip6_ioam_trace_stats_increment_counter (IP6_IOAM_TRACE_LOOPBACK_REPLY,
1);
return rv;
}
time_u64.as_u64 = 0;
if (PREDICT_TRUE (trace->trace_hdr.data_list_elts_left))
{
trace->trace_hdr.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->trace_hdr.data_list_elts_left *
fetch_trace_data_size (trace->trace_hdr.ioam_trace_type) / 4;
elt = &trace->trace_hdr.elts[elt_index];
if (trace->trace_hdr.ioam_trace_type & BIT_TTL_NODEID)
{
*elt =
clib_host_to_net_u32 ((ip->hop_limit << 24) | profile->node_id);
elt++;
}
if (trace->trace_hdr.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->trace_hdr.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->trace_hdr.ioam_trace_type & BIT_APPDATA)
{
/* $$$ set elt0->app_data */
*elt = clib_host_to_net_u32 (profile->app_data);
elt++;
}
if (PREDICT_FALSE (trace->trace_hdr.ioam_trace_type & BIT_LOOPBACK))
{
/* if loopback flag set then copy the packet
* and send it back to source */
ip6_hbh_ioam_loopback_handler (b, ip, trace);
}
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->trace_hdr.ioam_trace_type,
trace->trace_hdr.data_list_elts_left);
trace_data_size_in_words =
fetch_trace_data_size (trace->trace_hdr.ioam_trace_type) / 4;
elt = &trace->trace_hdr.elts[0];
while ((u8 *) elt <
((u8 *) (&trace->trace_hdr.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->trace_hdr.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* */
/* *INDENT-OFF* */
VLIB_PLUGIN_REGISTER () = {
.version = VPP_BUILD_VER,
.description = "Inbound OAM",
};
/* *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:
*/
