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# 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.


######################################################################
# glibc
######################################################################

# glibc needs this for cross compiling 
libc_cv_forced_unwind=yes
libc_cv_c_cleanup=yes
libc_cv_ssp=no
# fixes gentoo build; not sure why?
libc_cv_uname_release=""
libc_cv_uname_version=""
ac_cv_header_cpuid_h=yes
######################################################################
# bash
######################################################################

# Bash configure.in uses this to work around an autoconf 2.53 bug
ac_cv_func_setvbuf_reversed=no
ac_cv_rl_version=5.1
bash_cv_termcap_lib=libncurses

# These mostly come from debian bash-2.05b changes
# They are needed to make a functioning bash.  Without these
# settings gdbserver exiting would cause the invoking bash to
# exit also.
bash_cv_have_mbstate_t=yes
bash_cv_dup2_broken=no
bash_cv_pgrp_pipe=no
bash_cv_sys_siglist=yes
bash_cv_under_sys_siglist=yes
bash_cv_opendir_not_robust=no
bash_cv_printf_declared=yes
bash_cv_ulimit_maxfds=yes
bash_cv_getenv_redef=yes
bash_cv_getcwd_calls_popen=no
bash_cv_func_strcoll_broken=no
bash_cv_must_reinstall_sighandlers=no
bash_cv_type_quad_t=yes
bash_cv_func_sigsetjmp=present
bash_cv_job_control_missing=present
bash_cv_sys_named_pipes=present
bash_cv_type_rlimit=long
bash_cv_printf_a_format=yes
bash_cv_unusable_rtsigs=no

######################################################################
# Apache
######################################################################
ac_cv_func_setpgrp_void=yes
apr_cv_process_shared_works=yes
apr_cv_tcp_nodelay_with_cork=yes
ap_void_ptr_lt_long=no

case ${host_cpu} in
x86_64 | alpha)
  ac_cv_sizeof_ssize_t=8
  ac_cv_sizeof_size_t=8
  ac_cv_sizeof_pid_t=4
  ;;
*)
  ac_cv_sizeof_ssize_t=4
  ac_cv_sizeof_size_t=4
  ac_cv_sizeof_pid_t=4
  ;;
esac

######################################################################
# gdb
######################################################################
gdb_cv_func_ptrace_args=int,int,long,long

######################################################################
# dpkg
######################################################################
dpkg_cv_va_copy=yes

######################################################################
# coreutils
######################################################################
ac_cv_search_clock_gettime=no
gl_cv_fs_space=yes

######################################################################
# valgrind
######################################################################
ac_cv_file__proc_self_fd=yes
ac_cv_file__proc_self_exe=yes
ac_cv_file__proc_self_maps=yes

######################################################################
# tcpdump
######################################################################
ac_cv_linux_vers=2
ac_cv_func_pcap_findalldevs=no

######################################################################
# flex
######################################################################
ac_cv_func_malloc_0_nonnull=yes
ac_cv_func_realloc_0_nonnull=yes

######################################################################
# tar
######################################################################
tar_gl_cv_func_mknod_works=yes
ackground-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) 2017 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.
 */
/*
 *------------------------------------------------------------------
 * ioam_cache.c - ioam ip6 API / debug CLI handling
 *------------------------------------------------------------------
 */

#include <vnet/vnet.h>
#include <vnet/plugin/plugin.h>
#include <ioam/ip6/ioam_cache.h>

#include <vlibapi/api.h>
#include <vlibmemory/api.h>
#include <vnet/ip/ip6_hop_by_hop.h>

#include "ioam_cache.h"

/* define message IDs */
#include <ioam/ip6/ioam_cache.api_enum.h>
#include <ioam/ip6/ioam_cache.api_types.h>

#define REPLY_MSG_ID_BASE cm->msg_id_base
#include <vlibapi/api_helper_macros.h>

ioam_cache_main_t ioam_cache_main;

static u8 *
ioam_e2e_id_trace_handler (u8 * s, ip6_hop_by_hop_option_t * opt)
{
  ioam_e2e_id_option_t *e2e = (ioam_e2e_id_option_t *) opt;

  if (e2e)
    {
      s =
	format (s, "IP6_HOP_BY_HOP E2E ID = %U\n", format_ip6_address,
		&(e2e->id));
    }


  return s;
}

static u8 *
ioam_e2e_cache_trace_handler (u8 * s, ip6_hop_by_hop_option_t * opt)
{
  ioam_e2e_cache_option_t *e2e = (ioam_e2e_cache_option_t *) opt;

  if (e2e)
    {
      s =
	format (s, "IP6_HOP_BY_HOP E2E CACHE = pool:%d idx:%d\n",
		e2e->pool_id, e2e->pool_index);
    }


  return s;
}

/* Action function shared between message handler and debug CLI */
int
ioam_cache_ip6_enable_disable (ioam_cache_main_t * em,
			       ip6_address_t * sr_localsid, u8 is_disable)
{
  vlib_main_t *vm = em->vlib_main;

  if (is_disable == 0)
    {
      ioam_cache_table_init (vm);
      em->sr_localsid_cache.as_u64[0] = sr_localsid->as_u64[0];
      em->sr_localsid_cache.as_u64[1] = sr_localsid->as_u64[1];
      ip6_hbh_set_next_override (em->cache_hbh_slot);
      ip6_hbh_register_option (HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE_ID,
			       0, ioam_e2e_id_trace_handler);
      ip6_hbh_register_option (HBH_OPTION_TYPE_IOAM_E2E_CACHE_ID,
			       0, ioam_e2e_cache_trace_handler);

    }
  else
    {
      ip6_hbh_set_next_override (IP6_LOOKUP_NEXT_POP_HOP_BY_HOP);
      ioam_cache_table_destroy (vm);
      em->sr_localsid_cache.as_u64[0] = 0;
      em->sr_localsid_cache.as_u64[1] = 0;
      ip6_hbh_unregister_option (HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE_ID);
      ip6_hbh_unregister_option (HBH_OPTION_TYPE_IOAM_E2E_CACHE_ID);
    }

  return 0;
}

/* Action function shared between message handler and debug CLI */
int
ioam_tunnel_select_ip6_enable_disable (ioam_cache_main_t * em,
				       u8 criteria,
				       u8 no_of_responses,
				       ip6_address_t * sr_localsid,
				       u8 is_disable)
{
  vlib_main_t *vm = em->vlib_main;

  if (is_disable == 0)
    {
      ioam_cache_ts_table_init (vm);
      em->criteria_oneway = criteria;
      em->wait_for_responses = no_of_responses;
      em->sr_localsid_ts.as_u64[0] = sr_localsid->as_u64[0];
      em->sr_localsid_ts.as_u64[1] = sr_localsid->as_u64[1];
      ip6_hbh_set_next_override (em->ts_hbh_slot);
      ip6_ioam_ts_cache_set_rewrite ();
      ip6_hbh_register_option (HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE_ID,
			       0, ioam_e2e_id_trace_handler);
      ip6_hbh_register_option (HBH_OPTION_TYPE_IOAM_E2E_CACHE_ID,
			       0, ioam_e2e_cache_trace_handler);

      /* Turn on the cleanup process */
      //      vlib_process_signal_event (vm, em->cleanup_process_node_index, 1, 0);
    }
  else
    {
      ioam_cache_ts_timer_node_enable (vm, 0);
      ip6_hbh_set_next_override (IP6_LOOKUP_NEXT_POP_HOP_BY_HOP);
      em->sr_localsid_ts.as_u64[0] = 0;
      em->sr_localsid_ts.as_u64[1] = 0;
      ioam_cache_ts_table_destroy (vm);
      ip6_ioam_ts_cache_cleanup_rewrite ();
      ip6_hbh_unregister_option (HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE_ID);
      ip6_hbh_unregister_option (HBH_OPTION_TYPE_IOAM_E2E_CACHE_ID);
    }

  return 0;
}

/* API message handler */
static void vl_api_ioam_cache_ip6_enable_disable_t_handler
  (vl_api_ioam_cache_ip6_enable_disable_t * mp)
{
  vl_api_ioam_cache_ip6_enable_disable_reply_t *rmp;
  ioam_cache_main_t *cm = &ioam_cache_main;
  ip6_address_t sr_localsid;
  int rv;

  sr_localsid.as_u64[0] = 0;
  sr_localsid.as_u64[1] = 0;
  rv =
    ioam_cache_ip6_enable_disable (cm, &sr_localsid, (int) (mp->is_disable));
  REPLY_MACRO (VL_API_IOAM_CACHE_IP6_ENABLE_DISABLE_REPLY);
}

static clib_error_t *
set_ioam_cache_command_fn (vlib_main_t * vm,
			   unformat_input_t * input, vlib_cli_command_t * cmd)
{
  ioam_cache_main_t *em = &ioam_cache_main;
  u8 is_disable = 0;
  ip6_address_t sr_localsid;
  u8 address_set = 0;

  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (input, "disable"))
	is_disable = 1;
      else if (!address_set
	       && unformat (input, "sr_localsid %U", unformat_ip6_address,
			    &sr_localsid))
	address_set = 1;
      else
	break;
    }

  if (is_disable == 0 && !address_set)
    return clib_error_return (0, "Error: SRv6 LocalSID address is mandatory");

  ioam_cache_ip6_enable_disable (em, &sr_localsid, is_disable);

  return 0;
}

/* *INDENT_OFF* */
VLIB_CLI_COMMAND (set_ioam_cache_command, static) =
{
.path = "set ioam ip6 cache",.short_help =
    "set ioam ip6 cache sr_localsid <ip6 address> [disable]",.function =
    set_ioam_cache_command_fn};
/* *INDENT_ON* */

#define IOAM_TS_WAIT_FOR_RESPONSES 3
static clib_error_t *
set_ioam_tunnel_select_command_fn (vlib_main_t * vm,
				   unformat_input_t * input,
				   vlib_cli_command_t * cmd)
{
  ioam_cache_main_t *em = &ioam_cache_main;
  u8 is_disable = 0;
  u8 one_way = 0;
  ip6_address_t sr_localsid;
  u8 address_set = 0;
  u8 no_of_responses = IOAM_TS_WAIT_FOR_RESPONSES;

  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (input, "disable"))
	is_disable = 1;
      else if (unformat (input, "rtt"))
	one_way = 0;
      else if (unformat (input, "oneway"))
	one_way = 1;
      else if (unformat (input, "wait_for_responses %d", &no_of_responses))
	;
      else if (!address_set
	       && unformat (input, "sr_localsid %U", unformat_ip6_address,
			    &sr_localsid))
	address_set = 1;
      else
	break;
    }
  if (is_disable == 0 && !address_set)
    return clib_error_return (0,
			      "Error: SRv6 LocalSID address is mandatory to receive response.");

  ioam_tunnel_select_ip6_enable_disable (em, one_way, no_of_responses,
					 &sr_localsid, is_disable);

  return 0;
}

/* *INDENT_OFF* */
VLIB_CLI_COMMAND (set_ioam_cache_ts_command, static) =
{
.path = "set ioam ip6 sr-tunnel-select",.short_help =
    "set ioam ip6 sr-tunnel-select [disable] [oneway|rtt] [wait_for_responses <n|default 3>] \
  [sr_localsid <ip6 address>]",.function = set_ioam_tunnel_select_command_fn};
/* *INDENT_ON* */

static void
ioam_cache_table_print (vlib_main_t * vm, u8 verbose)
{
  ioam_cache_main_t *cm = &ioam_cache_main;
  ioam_cache_entry_t *entry = 0;
  ioam_cache_ts_entry_t *ts_entry = 0;
  int no_of_threads = vec_len (vlib_worker_threads);
  int i;

  pool_foreach (entry, cm->ioam_rewrite_pool, (
						{
						vlib_cli_output (vm, "%U",
								 format_ioam_cache_entry,
								 entry);
						}));

  if (cm->ts_stats)
    for (i = 0; i < no_of_threads; i++)
      {
	vlib_cli_output (vm, "Number of entries in thread-%d selection pool: %lu\n \
                          (pool found to be full: %lu times)", i,
			 cm->ts_stats[i].inuse, cm->ts_stats[i].add_failed);

	if (verbose == 1)
	  vlib_worker_thread_barrier_sync (vm);
	pool_foreach (ts_entry, cm->ioam_ts_pool[i], (
						       {
						       vlib_cli_output (vm,
									"%U",
									format_ioam_cache_ts_entry,
									ts_entry,
									(u32)
									i);
						       }
		      ));
	vlib_worker_thread_barrier_release (vm);
      }

}

static clib_error_t *
show_ioam_cache_command_fn (vlib_main_t * vm,
			    unformat_input_t * input,
			    vlib_cli_command_t * cmd)
{
  u8 verbose = 0;

  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (input, "verbose"))
	verbose = 1;
      else
	return clib_error_return (0, "unknown input `%U'",
				  format_unformat_error, input);
    }
  ioam_cache_table_print (vm, verbose);


  return 0;
}

/* *INDENT_OFF* */
VLIB_CLI_COMMAND (show_ioam_cache_command, static) =
{
.path = "show ioam ip6 cache",.short_help =
    "show ioam ip6 cache [verbose]",.function = show_ioam_cache_command_fn};
/* *INDENT_ON* */

#include <ioam/ip6/ioam_cache.api.c>
static clib_error_t *
ioam_cache_init (vlib_main_t * vm)
{
  vlib_node_t *node;
  ioam_cache_main_t *em = &ioam_cache_main;
  u32 cache_node_index = ioam_cache_node.index;
  u32 ts_node_index = ioam_cache_ts_node.index;
  vlib_node_t *ip6_hbyh_node = NULL, *ip6_hbh_pop_node = NULL, *error_node =
    NULL;

  clib_memset (&ioam_cache_main, 0, sizeof (ioam_cache_main));
  /* Ask for a correctly-sized block of API message decode slots */
  em->msg_id_base = setup_message_id_table ();

  /* Hook this node to ip6-hop-by-hop */
  ip6_hbyh_node = vlib_get_node_by_name (vm, (u8 *) "ip6-hop-by-hop");
  em->cache_hbh_slot =
    vlib_node_add_next (vm, ip6_hbyh_node->index, cache_node_index);
  em->ts_hbh_slot =
    vlib_node_add_next (vm, ip6_hbyh_node->index, ts_node_index);

  ip6_hbh_pop_node = vlib_get_node_by_name (vm, (u8 *) "ip6-pop-hop-by-hop");
  em->ip6_hbh_pop_node_index = ip6_hbh_pop_node->index;

  error_node = vlib_get_node_by_name (vm, (u8 *) "error-drop");
  em->error_node_index = error_node->index;
  em->vlib_main = vm;

  node = vlib_get_node_by_name (vm, (u8 *) "ip6-add-from-cache-hop-by-hop");
  em->ip6_add_from_cache_hbh_node_index = node->index;

  node = vlib_get_node_by_name (vm, (u8 *) "ip6-add-syn-hop-by-hop");
  em->ip6_reset_ts_hbh_node_index = node->index;

  return 0;
}

VLIB_INIT_FUNCTION (ioam_cache_init);

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */