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<?xml version="1.0" encoding="UTF-8"?>
<!-- vi: set et smarttab sw=4 tabstop=4: -->
<!--
 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.
-->
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

  <parent>
    <groupId>io.fd.honeycomb.common</groupId>
    <artifactId>honeycomb-parent</artifactId>
    <version>1.18.01-RC1</version>
    <relativePath>../honeycomb-parent</relativePath>
  </parent>

  <modelVersion>4.0.0</modelVersion>
  <artifactId>impl-parent</artifactId>
  <name>${project.artifactId}</name>
  <version>1.18.01-RC1</version>
  <packaging>pom</packaging>

  <properties>
    <guice.version>4.1.0</guice.version>
    <guice.config.version>1.2.0</guice.config.version>
    <skinny.logback.version>1.0.8</skinny.logback.version>
    <maven-resources-plugin.version>3.0.2</maven-resources-plugin.version>
  </properties>

  <dependencyManagement>
    <dependencies>
      <!-- DI -->
      <dependency>
        <groupId>com.google.inject</groupId>
        <artifactId>guice</artifactId>
        <version>${guice.version}</version>
      </dependency>
      <dependency>
        <groupId>net.jmob</groupId>
        <artifactId>guice.conf</artifactId>
        <version>${guice.config.version}</version>
      </dependency>
      <dependency>
        <groupId>com.google.inject.extensions</groupId>
        <artifactId>guice-multibindings</artifactId>
        <version>${guice.version}</version>
      </dependency>
      <!-- tests -->
      <dependency>
        <groupId>org.skinny-framework</groupId>
        <artifactId>skinny-logback</artifactId>
        <version>${skinny.logback.version}</version>
        <scope>test</scope>
      </dependency>
      <dependency>
        <groupId>com.google.inject.extensions</groupId>
        <artifactId>guice-testlib</artifactId>
        <version>${guice.version}</version>
        <scope>test</scope>
      </dependency>
    </dependencies>
  </dependencyManagement>

  <build>
    <pluginManagement>
      <!-- Must be done in parent, to unpack jars for all projects that we generate yang module index for -->
      <plugins> <!-- Copy all dependencies -->
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-dependency-plugin</artifactId>
          <version>2.10</version>
          <executions>
            <execution>
              <id>copy-dependencies</id>
              <!-- Must be done before generating yang to module index -->
              <phase>process-sources</phase>
              <goals>
                <goal>copy-dependencies</goal>
              </goals>
              <configuration>
                <outputDirectory>${project.build.directory}/lib</outputDirectory>
                <useBaseVersion>true</useBaseVersion>
                <useRepositoryLayout>true</useRepositoryLayout>
                <excludeArtifactIds>yang-jmx-generator,test-api</excludeArtifactIds>
              </configuration>
            </execution>
          </executions>
        </plugin>
        <!-- Generate module to yang provider index -->
        <plugin>
          <groupId>org.codehaus.gmaven</groupId>
          <artifactId>groovy-maven-plugin</artifactId>
          <executions>
            <execution>
              <id>generate-yang-index</id>
              <phase>generate-resources</phase>
              <goals>
                <goal>execute</goal>
              </goals>
              <configuration>
                <source>
                  io.fd.honeycomb.common.scripts.ModuleYangIndexGenerator.generateIndexForPresentModules(project, log)
                </source>
              </configuration>
            </execution>
          </executions>
          <dependencies>
            <dependency>
              <groupId>io.fd.honeycomb.common</groupId>
              <artifactId>common-scripts</artifactId>
              <version>1.18.01-RC1</version>
            </dependency>
          </dependencies>
        </plugin>
      </plugins>
    </pluginManagement>

    <plugins>
      <plugin>
        <groupId>org.codehaus.gmaven</groupId>
        <artifactId>groovy-maven-plugin</artifactId>
      </plugin>
    </plugins>

    <resources>
      <resource>
        <directory>src/main/resources</directory>
        <includes>
          <include>**/*</include>
        </includes>
      </resource>
      <resource>
        <directory>${project.build.outputDirectory}</directory>
        <includes>
          <include>**/yang-modules-binding/yang-modules</include>
        </includes>
      </resource>
    </resources>
  </build>
</project>
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/*
 * decap.c : IPSec tunnel support
 *
 * 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 <vnet/vnet.h>
#include <vnet/api_errno.h>
#include <vnet/ip/ip.h>
#include <vnet/interface.h>
#include <vnet/fib/fib.h>
#include <vnet/ipip/ipip.h>

#include <vnet/ipsec/ipsec.h>
#include <vnet/ipsec/ipsec_tun.h>

static clib_error_t *
set_interface_spd_command_fn (vlib_main_t * vm,
			      unformat_input_t * input,
			      vlib_cli_command_t * cmd)
{
  unformat_input_t _line_input, *line_input = &_line_input;
  ipsec_main_t *im = &ipsec_main;
  u32 sw_if_index = (u32) ~ 0;
  u32 spd_id;
  int is_add = 1;
  clib_error_t *error = NULL;
  int err;

  if (!unformat_user (input, unformat_line_input, line_input))
    return 0;

  if (unformat
      (line_input, "%U %u", unformat_vnet_sw_interface, im->vnet_main,
       &sw_if_index, &spd_id))
    ;
  else if (unformat (line_input, "del"))
    is_add = 0;
  else
    {
      error = clib_error_return (0, "parse error: '%U'",
				 format_unformat_error, line_input);
      goto done;
    }

  err = ipsec_set_interface_spd (vm, sw_if_index, spd_id, is_add);
  switch (err)
    {
    case VNET_API_ERROR_SYSCALL_ERROR_1:
      error = clib_error_return (0, "no such spd-id");
      break;
    case VNET_API_ERROR_SYSCALL_ERROR_2:
      error = clib_error_return (0, "spd already assigned");
      break;
    }

done:
  unformat_free (line_input);

  return error;
}

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (set_interface_spd_command, static) = {
    .path = "set interface ipsec spd",
    .short_help =
    "set interface ipsec spd <int> <id>",
    .function = set_interface_spd_command_fn,
};
/* *INDENT-ON* */

static clib_error_t *
ipsec_sa_add_del_command_fn (vlib_main_t * vm,
			     unformat_input_t * input,
			     vlib_cli_command_t * cmd)
{
  unformat_input_t _line_input, *line_input = &_line_input;
  ipsec_crypto_alg_t crypto_alg;
  ipsec_integ_alg_t integ_alg;
  ipsec_protocol_t proto;
  ipsec_sa_flags_t flags;
  clib_error_t *error;
  ipsec_key_t ck = { 0 };
  ipsec_key_t ik = { 0 };
  u32 id, spi, salt, sai;
  int i = 0;
  u16 udp_src, udp_dst;
  int is_add, rv;
  u32 m_args = 0;
  tunnel_t tun = {};

  salt = 0;
  error = NULL;
  is_add = 0;
  flags = IPSEC_SA_FLAG_NONE;
  proto = IPSEC_PROTOCOL_ESP;
  integ_alg = IPSEC_INTEG_ALG_NONE;
  crypto_alg = IPSEC_CRYPTO_ALG_NONE;
  udp_src = udp_dst = IPSEC_UDP_PORT_NONE;

  if (!unformat_user (input, unformat_line_input, line_input))
    return 0;

  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (line_input, "add %u", &id))
	{
	  is_add = 1;
	  m_args |= 1 << 0;
	}
      else if (unformat (line_input, "del %u", &id))
	{
	  is_add = 0;
	  m_args |= 1 << 0;
	}
      else if (unformat (line_input, "spi %u", &spi))
	m_args |= 1 << 1;
      else if (unformat (line_input, "salt 0x%x", &salt))
	;
      else if (unformat (line_input, "esp"))
	proto = IPSEC_PROTOCOL_ESP;
      else if (unformat (line_input, "ah"))
	proto = IPSEC_PROTOCOL_AH;
      else if (unformat (line_input, "crypto-key %U",
			 unformat_ipsec_key, &ck))
	;
      else if (unformat (line_input, "crypto-alg %U",
			 unformat_ipsec_crypto_alg, &crypto_alg))
	;
      else if (unformat (line_input, "integ-key %U", unformat_ipsec_key, &ik))
	;
      else if (unformat (line_input, "integ-alg %U",
			 unformat_ipsec_integ_alg, &integ_alg))
	;
      else if (unformat (line_input, " %U", unformat_tunnel, &tun))
	{
	  flags |= IPSEC_SA_FLAG_IS_TUNNEL;
	  if (AF_IP6 == tunnel_get_af (&tun))
	    flags |= IPSEC_SA_FLAG_IS_TUNNEL_V6;
	}
      else if (unformat (line_input, "udp-src-port %d", &i))
	udp_src = i;
      else if (unformat (line_input, "udp-dst-port %d", &i))
	udp_dst = i;
      else if (unformat (line_input, "inbound"))
	flags |= IPSEC_SA_FLAG_IS_INBOUND;
      else if (unformat (line_input, "use-anti-replay"))
	flags |= IPSEC_SA_FLAG_USE_ANTI_REPLAY;
      else if (unformat (line_input, "use-esn"))
	flags |= IPSEC_SA_FLAG_USE_ESN;
      else if (unformat (line_input, "udp-encap"))
	flags |= IPSEC_SA_FLAG_UDP_ENCAP;
      else if (unformat (line_input, "async"))
	flags |= IPSEC_SA_FLAG_IS_ASYNC;
      else
	{
	  error = clib_error_return (0, "parse error: '%U'",
				     format_unformat_error, line_input);
	  goto done;
	}
    }

  if (!(m_args & 1))
    {
      error = clib_error_return (0, "missing id");
      goto done;
    }

  if (is_add)
    {
      if (!(m_args & 2))
	{
	  error = clib_error_return (0, "missing spi");
	  goto done;
	}
      rv = ipsec_sa_add_and_lock (id, spi, proto, crypto_alg, &ck, integ_alg,
				  &ik, flags, clib_host_to_net_u32 (salt),
				  udp_src, udp_dst, &tun, &sai);
    }
  else
    {
      rv = ipsec_sa_unlock_id (id);
    }

  if (rv)
    error = clib_error_return (0, "failed: %d", rv);

done:
  unformat_free (line_input);

  return error;
}

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ipsec_sa_add_del_command, static) = {
    .path = "ipsec sa",
    .short_help =
    "ipsec sa [add|del]",
    .function = ipsec_sa_add_del_command_fn,
};
/* *INDENT-ON* */

static clib_error_t *
ipsec_spd_add_del_command_fn (vlib_main_t * vm,
			      unformat_input_t * input,
			      vlib_cli_command_t * cmd)
{
  unformat_input_t _line_input, *line_input = &_line_input;
  u32 spd_id = ~0;
  int is_add = ~0;
  clib_error_t *error = NULL;

  if (!unformat_user (input, unformat_line_input, line_input))
    return 0;

  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (line_input, "add"))
	is_add = 1;
      else if (unformat (line_input, "del"))
	is_add = 0;
      else if (unformat (line_input, "%u", &spd_id))
	;
      else
	{
	  error = clib_error_return (0, "parse error: '%U'",
				     format_unformat_error, line_input);
	  goto done;
	}
    }

  if (spd_id == ~0)
    {
      error = clib_error_return (0, "please specify SPD ID");
      goto done;
    }

  ipsec_add_del_spd (vm, spd_id, is_add);

done:
  unformat_free (line_input);

  return error;
}

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ipsec_spd_add_del_command, static) = {
    .path = "ipsec spd",
    .short_help =
    "ipsec spd [add|del] <id>",
    .function = ipsec_spd_add_del_command_fn,
};
/* *INDENT-ON* */


static clib_error_t *
ipsec_policy_add_del_command_fn (vlib_main_t * vm,
				 unformat_input_t * input,
				 vlib_cli_command_t * cmd)
{
  unformat_input_t _line_input, *line_input = &_line_input;
  ipsec_policy_t p;
  int rv, is_add = 0;
  u32 tmp, tmp2, stat_index, local_range_set, remote_range_set;
  clib_error_t *error = NULL;
  u32 is_outbound;

  clib_memset (&p, 0, sizeof (p));
  p.lport.stop = p.rport.stop = ~0;
  remote_range_set = local_range_set = is_outbound = 0;

  if (!unformat_user (input, unformat_line_input, line_input))
    return 0;

  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (line_input, "add"))
	is_add = 1;
      else if (unformat (line_input, "del"))
	is_add = 0;
      else if (unformat (line_input, "ip6"))
	p.is_ipv6 = 1;
      else if (unformat (line_input, "spd %u", &p.id))
	;
      else if (unformat (line_input, "inbound"))
	is_outbound = 0;
      else if (unformat (line_input, "outbound"))
	is_outbound = 1;
      else if (unformat (line_input, "priority %d", &p.priority))
	;
      else if (unformat (line_input, "protocol %u", &tmp))
	p.protocol = (u8) tmp;
      else
	if (unformat
	    (line_input, "action %U", unformat_ipsec_policy_action,
	     &p.policy))
	{
	  if (p.policy == IPSEC_POLICY_ACTION_RESOLVE)
	    {
	      error = clib_error_return (0, "unsupported action: 'resolve'");
	      goto done;
	    }
	}
      else if (unformat (line_input, "sa %u", &p.sa_id))
	;
      else if (unformat (line_input, "local-ip-range %U - %U",
			 unformat_ip4_address, &p.laddr.start.ip4,
			 unformat_ip4_address, &p.laddr.stop.ip4))
	local_range_set = 1;
      else if (unformat (line_input, "remote-ip-range %U - %U",
			 unformat_ip4_address, &p.raddr.start.ip4,
			 unformat_ip4_address, &p.raddr.stop.ip4))
	remote_range_set = 1;
      else if (unformat (line_input, "local-ip-range %U - %U",
			 unformat_ip6_address, &p.laddr.start.ip6,
			 unformat_ip6_address, &p.laddr.stop.ip6))
	{
	  p.is_ipv6 = 1;
	  local_range_set = 1;
	}
      else if (unformat (line_input, "remote-ip-range %U - %U",
			 unformat_ip6_address, &p.raddr.start.ip6,
			 unformat_ip6_address, &p.raddr.stop.ip6))
	{
	  p.is_ipv6 = 1;
	  remote_range_set = 1;
	}
      else if (unformat (line_input, "local-port-range %u - %u", &tmp, &tmp2))
	{
	  p.lport.start = tmp;
	  p.lport.stop = tmp2;
	}
      else
	if (unformat (line_input, "remote-port-range %u - %u", &tmp, &tmp2))
	{
	  p.rport.start = tmp;
	  p.rport.stop = tmp2;
	}
      else
	{
	  error = clib_error_return (0, "parse error: '%U'",
				     format_unformat_error, line_input);
	  goto done;
	}
    }

  if (!remote_range_set)
    {
      if (p.is_ipv6)
	clib_memset (&p.raddr.stop.ip6, 0xff, 16);
      else
	clib_memset (&p.raddr.stop.ip4, 0xff, 4);
    }
  if (!local_range_set)
    {
      if (p.is_ipv6)
	clib_memset (&p.laddr.stop.ip6, 0xff, 16);
      else
	clib_memset (&p.laddr.stop.ip4, 0xff, 4);
    }

  rv = ipsec_policy_mk_type (is_outbound, p.is_ipv6, p.policy, &p.type);

  if (rv)
    {
      error = clib_error_return (0, "unsupported policy type for:",
				 " outboud:%s %s action:%U",
				 (is_outbound ? "yes" : "no"),
				 (p.is_ipv6 ? "IPv4" : "IPv6"),
				 format_ipsec_policy_action, p.policy);
      goto done;
    }

  rv = ipsec_add_del_policy (vm, &p, is_add, &stat_index);

  if (!rv)
    vlib_cli_output (vm, "policy-index:%d", stat_index);
  else
    vlib_cli_output (vm, "error:%d", rv);

done:
  unformat_free (line_input);

  return error;
}

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ipsec_policy_add_del_command, static) = {
    .path = "ipsec policy",
    .short_help =
    "ipsec policy [add|del] spd <id> priority <n> ",
    .function = ipsec_policy_add_del_command_fn,
};
/* *INDENT-ON* */

static void
ipsec_sa_show_all (vlib_main_t * vm, ipsec_main_t * im, u8 detail)
{
  u32 sai;

  /* *INDENT-OFF* */
  pool_foreach_index (sai, ipsec_sa_pool)
    {
      vlib_cli_output (vm, "%U", format_ipsec_sa, sai,
		       (detail ? IPSEC_FORMAT_DETAIL : IPSEC_FORMAT_BRIEF));
    }
  /* *INDENT-ON* */
}

static void
ipsec_spd_show_all (vlib_main_t * vm, ipsec_main_t * im)
{
  u32 spdi;

  /* *INDENT-OFF* */
  pool_foreach_index (spdi, im->spds)  {
    vlib_cli_output(vm, "%U", format_ipsec_spd, spdi);
  }

  if (im->output_flow_cache_flag)
    {
      vlib_cli_output (vm, "%U", format_ipsec_out_spd_flow_cache);
    }
  if (im->input_flow_cache_flag)
    {
      vlib_cli_output (vm, "%U", format_ipsec_in_spd_flow_cache);
    }
  /* *INDENT-ON* */
}

static void
ipsec_spd_bindings_show_all (vlib_main_t * vm, ipsec_main_t * im)
{
  u32 spd_id, sw_if_index;
  ipsec_spd_t *spd;

  vlib_cli_output (vm, "SPD Bindings:");

  /* *INDENT-OFF* */
  hash_foreach(sw_if_index, spd_id, im->spd_index_by_sw_if_index, ({
    spd = pool_elt_at_index (im->spds, spd_id);
    vlib_cli_output (vm, "  %d -> %U", spd->id,
                     format_vnet_sw_if_index_name, im->vnet_main,
                     sw_if_index);
  }));
  /* *INDENT-ON* */
}

static walk_rc_t
ipsec_tun_protect_show_one (index_t itpi, void *ctx)
{
  vlib_cli_output (ctx, "%U", format_ipsec_tun_protect_index, itpi);

  return (WALK_CONTINUE);
}

static void
ipsec_tunnel_show_all (vlib_main_t * vm)
{
  ipsec_tun_protect_walk (ipsec_tun_protect_show_one, vm);
}

static clib_error_t *
show_ipsec_command_fn (vlib_main_t * vm,
		       unformat_input_t * input, vlib_cli_command_t * cmd)
{
  ipsec_main_t *im = &ipsec_main;

  ipsec_sa_show_all (vm, im, 0);
  ipsec_spd_show_all (vm, im);
  ipsec_spd_bindings_show_all (vm, im);
  ipsec_tun_protect_walk (ipsec_tun_protect_show_one, vm);

  vlib_cli_output (vm, "IPSec async mode: %s",
		   (im->async_mode ? "on" : "off"));

  return 0;
}

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_ipsec_command, static) = {
    .path = "show ipsec all",
    .short_help = "show ipsec all",
    .function = show_ipsec_command_fn,
};
/* *INDENT-ON* */

static clib_error_t *
show_ipsec_sa_command_fn (vlib_main_t * vm,
			  unformat_input_t * input, vlib_cli_command_t * cmd)
{
  ipsec_main_t *im = &ipsec_main;
  u32 sai = ~0;
  u8 detail = 0;

  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (input, "%u", &sai))
	;
      if (unformat (input, "detail"))
	detail = 1;
      else
	break;
    }

  if (~0 == sai)
    ipsec_sa_show_all (vm, im, detail);
  else
    vlib_cli_output (vm, "%U", format_ipsec_sa, sai,
		     IPSEC_FORMAT_DETAIL | IPSEC_FORMAT_INSECURE);

  return 0;
}

static clib_error_t *
clear_ipsec_sa_command_fn (vlib_main_t * vm,
			   unformat_input_t * input, vlib_cli_command_t * cmd)
{
  u32 sai = ~0;

  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (input, "%u", &sai))
	;
      else
	break;
    }

  if (~0 == sai)
    {
      /* *INDENT-OFF* */
      pool_foreach_index (sai, ipsec_sa_pool)
	{
	  ipsec_sa_clear (sai);
	}
      /* *INDENT-ON* */
    }
  else
    {
      if (pool_is_free_index (ipsec_sa_pool, sai))
	return clib_error_return (0, "unknown SA index: %d", sai);
      else
	ipsec_sa_clear (sai);
    }

  return 0;
}

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_ipsec_sa_command, static) = {
    .path = "show ipsec sa",
    .short_help = "show ipsec sa [index]",
    .function = show_ipsec_sa_command_fn,
};

VLIB_CLI_COMMAND (clear_ipsec_sa_command, static) = {
    .path = "clear ipsec sa",
    .short_help = "clear ipsec sa [index]",
    .function = clear_ipsec_sa_command_fn,
};
/* *INDENT-ON* */

static clib_error_t *
show_ipsec_spd_command_fn (vlib_main_t * vm,
			   unformat_input_t * input, vlib_cli_command_t * cmd)
{
  ipsec_main_t *im = &ipsec_main;
  u8 show_bindings = 0;
  u32 spdi = ~0;

  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (input, "%u", &spdi))
	;
      else if (unformat (input, "bindings"))
	show_bindings = 1;
      else
	break;
    }

  if (show_bindings)
    ipsec_spd_bindings_show_all (vm, im);
  else if (~0 != spdi)
    vlib_cli_output (vm, "%U", format_ipsec_spd, spdi);
  else
    ipsec_spd_show_all (vm, im);

  return 0;
}

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_ipsec_spd_command, static) = {
    .path = "show ipsec spd",
    .short_help = "show ipsec spd [index]",
    .function = show_ipsec_spd_command_fn,
};
/* *INDENT-ON* */

static clib_error_t *
show_ipsec_tunnel_command_fn (vlib_main_t * vm,
			      unformat_input_t * input,
			      vlib_cli_command_t * cmd)
{
  ipsec_tunnel_show_all (vm);

  return 0;
}

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_ipsec_tunnel_command, static) = {
    .path = "show ipsec tunnel",
    .short_help = "show ipsec tunnel",
    .function = show_ipsec_tunnel_command_fn,
};
/* *INDENT-ON* */

static clib_error_t *
ipsec_show_backends_command_fn (vlib_main_t * vm,
				unformat_input_t * input,
				vlib_cli_command_t * cmd)
{
  ipsec_main_t *im = &ipsec_main;
  u32 verbose = 0;

  (void) unformat (input, "verbose %u", &verbose);

  vlib_cli_output (vm, "IPsec AH backends available:");
  u8 *s = format (NULL, "%=25s %=25s %=10s\n", "Name", "Index", "Active");
  ipsec_ah_backend_t *ab;
  /* *INDENT-OFF* */
  pool_foreach (ab, im->ah_backends) {
    s = format (s, "%=25s %=25u %=10s\n", ab->name, ab - im->ah_backends,
                ab - im->ah_backends == im->ah_current_backend ? "yes" : "no");
    if (verbose) {
        vlib_node_t *n;
        n = vlib_get_node (vm, ab->ah4_encrypt_node_index);
        s = format (s, "     enc4 %s (next %d)\n", n->name, ab->ah4_encrypt_next_index);
        n = vlib_get_node (vm, ab->ah4_decrypt_node_index);
        s = format (s, "     dec4 %s (next %d)\n", n->name, ab->ah4_decrypt_next_index);
        n = vlib_get_node (vm, ab->ah6_encrypt_node_index);
        s = format (s, "     enc6 %s (next %d)\n", n->name, ab->ah6_encrypt_next_index);
        n = vlib_get_node (vm, ab->ah6_decrypt_node_index);
        s = format (s, "     dec6 %s (next %d)\n", n->name, ab->ah6_decrypt_next_index);
    }
  }
  /* *INDENT-ON* */
  vlib_cli_output (vm, "%v", s);
  vec_set_len (s, 0);
  vlib_cli_output (vm, "IPsec ESP backends available:");
  s = format (s, "%=25s %=25s %=10s\n", "Name", "Index", "Active");
  ipsec_esp_backend_t *eb;
  /* *INDENT-OFF* */
  pool_foreach (eb, im->esp_backends) {
    s = format (s, "%=25s %=25u %=10s\n", eb->name, eb - im->esp_backends,
                eb - im->esp_backends == im->esp_current_backend ? "yes"
                                                                 : "no");
    if (verbose) {
        vlib_node_t *n;
        n = vlib_get_node (vm, eb->esp4_encrypt_node_index);
        s = format (s, "     enc4 %s (next %d)\n", n->name, eb->esp4_encrypt_next_index);
        n = vlib_get_node (vm, eb->esp4_decrypt_node_index);
        s = format (s, "     dec4 %s (next %d)\n", n->name, eb->esp4_decrypt_next_index);
        n = vlib_get_node (vm, eb->esp6_encrypt_node_index);
        s = format (s, "     enc6 %s (next %d)\n", n->name, eb->esp6_encrypt_next_index);
        n = vlib_get_node (vm, eb->esp6_decrypt_node_index);
        s = format (s, "     dec6 %s (next %d)\n", n->name, eb->esp6_decrypt_next_index);
    }
  }
  /* *INDENT-ON* */
  vlib_cli_output (vm, "%v", s);

  vec_free (s);
  return 0;
}

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ipsec_show_backends_command, static) = {
    .path = "show ipsec backends",
    .short_help = "show ipsec backends",
    .function = ipsec_show_backends_command_fn,
};
/* *INDENT-ON* */

static clib_error_t *
ipsec_select_backend_command_fn (vlib_main_t * vm,
				 unformat_input_t * input,
				 vlib_cli_command_t * cmd)
{
  unformat_input_t _line_input, *line_input = &_line_input;
  ipsec_main_t *im = &ipsec_main;
  clib_error_t *error;
  u32 backend_index;

  error = ipsec_rsc_in_use (im);

  if (error)
    return error;

  /* Get a line of input. */
  if (!unformat_user (input, unformat_line_input, line_input))
    return 0;

  if (unformat (line_input, "ah"))
    {
      if (unformat (line_input, "%u", &backend_index))
	{
	  if (ipsec_select_ah_backend (im, backend_index) < 0)
	    {
	      return clib_error_return (0, "Invalid AH backend index `%u'",
					backend_index);
	    }
	}
      else
	{
	  return clib_error_return (0, "Invalid backend index `%U'",
				    format_unformat_error, line_input);
	}
    }
  else if (unformat (line_input, "esp"))
    {
      if (unformat (line_input, "%u", &backend_index))
	{
	  if (ipsec_select_esp_backend (im, backend_index) < 0)
	    {
	      return clib_error_return (0, "Invalid ESP backend index `%u'",
					backend_index);
	    }
	}
      else
	{
	  return clib_error_return (0, "Invalid backend index `%U'",
				    format_unformat_error, line_input);
	}
    }
  else
    {
      return clib_error_return (0, "Unknown input `%U'",
				format_unformat_error, line_input);
    }

  return 0;
}

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ipsec_select_backend_command, static) = {
    .path = "ipsec select backend",
    .short_help = "ipsec select backend <ah|esp> <backend index>",
    .function = ipsec_select_backend_command_fn,
};

/* *INDENT-ON* */

static clib_error_t *
clear_ipsec_counters_command_fn (vlib_main_t * vm,
				 unformat_input_t * input,
				 vlib_cli_command_t * cmd)
{
  vlib_clear_combined_counters (&ipsec_spd_policy_counters);
  vlib_clear_combined_counters (&ipsec_sa_counters);
  vlib_clear_simple_counters (&ipsec_sa_lost_counters);

  return (NULL);
}

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (clear_ipsec_counters_command, static) = {
    .path = "clear ipsec counters",
    .short_help = "clear ipsec counters",
    .function = clear_ipsec_counters_command_fn,
};
/* *INDENT-ON* */

static clib_error_t *
ipsec_tun_protect_cmd (vlib_main_t * vm,
		       unformat_input_t * input, vlib_cli_command_t * cmd)
{
  unformat_input_t _line_input, *line_input = &_line_input;
  u32 sw_if_index, is_del, sa_in, sa_out, *sa_ins = NULL;
  ip_address_t peer = { };
  vnet_main_t *vnm;

  is_del = 0;
  sw_if_index = ~0;
  vnm = vnet_get_main ();

  if (!unformat_user (input, unformat_line_input, line_input))
    return 0;

  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (line_input, "del"))
	is_del = 1;
      else if (unformat (line_input, "add"))
	is_del = 0;
      else if (unformat (line_input, "sa-in %d", &sa_in))
	vec_add1 (sa_ins, sa_in);
      else if (unformat (line_input, "sa-out %d", &sa_out))
	;
      else if (unformat (line_input, "%U",
			 unformat_vnet_sw_interface, vnm, &sw_if_index))
	;
      else if (unformat (line_input, "%U", unformat_ip_address, &peer))
	;
      else
	return (clib_error_return (0, "unknown input '%U'",
				   format_unformat_error, line_input));
    }

  if (!is_del)
    ipsec_tun_protect_update (sw_if_index, &peer, sa_out, sa_ins);
  else
    ipsec_tun_protect_del (sw_if_index, &peer);

  unformat_free (line_input);
  return NULL;
}

/**
 * Protect tunnel with IPSEC
 */
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ipsec_tun_protect_cmd_node, static) =
{
  .path = "ipsec tunnel protect",
  .function = ipsec_tun_protect_cmd,
  .short_help = "ipsec tunnel protect <interface> input-sa <SA> output-sa <SA> [add|del]",
    // this is not MP safe
};
/* *INDENT-ON* */


static clib_error_t *
ipsec_tun_protect_show (vlib_main_t * vm,
			unformat_input_t * input, vlib_cli_command_t * cmd)
{
  ipsec_tun_protect_walk (ipsec_tun_protect_show_one, vm);

  return NULL;
}

/**
 * show IPSEC tunnel protection
 */
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ipsec_tun_protect_show_node, static) =
{
  .path = "show ipsec protect",
  .function = ipsec_tun_protect_show,
  .short_help =  "show ipsec protect",
};
/* *INDENT-ON* */

static int
ipsec_tun_protect4_hash_show_one (clib_bihash_kv_8_16_t * kv, void *arg)
{
  ipsec4_tunnel_kv_t *ikv = (ipsec4_tunnel_kv_t *) kv;
  vlib_main_t *vm = arg;

  vlib_cli_output (vm, " %U", format_ipsec4_tunnel_kv, ikv);

  return (BIHASH_WALK_CONTINUE);
}

static int
ipsec_tun_protect6_hash_show_one (clib_bihash_kv_24_16_t * kv, void *arg)
{
  ipsec6_tunnel_kv_t *ikv = (ipsec6_tunnel_kv_t *) kv;
  vlib_main_t *vm = arg;

  vlib_cli_output (vm, " %U", format_ipsec6_tunnel_kv, ikv);

  return (BIHASH_WALK_CONTINUE);
}

static clib_error_t *
ipsec_tun_protect_hash_show (vlib_main_t * vm,
			     unformat_input_t * input,
			     vlib_cli_command_t * cmd)
{
  ipsec_main_t *im = &ipsec_main;

  {
    vlib_cli_output (vm, "IPv4:");

    clib_bihash_foreach_key_value_pair_8_16
      (&im->tun4_protect_by_key, ipsec_tun_protect4_hash_show_one, vm);

    vlib_cli_output (vm, "IPv6:");

    clib_bihash_foreach_key_value_pair_24_16
      (&im->tun6_protect_by_key, ipsec_tun_protect6_hash_show_one, vm);
  }

  return NULL;
}

/**
 * show IPSEC tunnel protection hash tables
 */
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ipsec_tun_protect_hash_show_node, static) =
{
  .path = "show ipsec protect-hash",
  .function = ipsec_tun_protect_hash_show,
  .short_help =  "show ipsec protect-hash",
};
/* *INDENT-ON* */

clib_error_t *
ipsec_cli_init (vlib_main_t * vm)
{
  return 0;
}

VLIB_INIT_FUNCTION (ipsec_cli_init);

static clib_error_t *
set_async_mode_command_fn (vlib_main_t * vm, unformat_input_t * input,
			   vlib_cli_command_t * cmd)
{
  unformat_input_t _line_input, *line_input = &_line_input;
  int async_enable = 0;

  if (!unformat_user (input, unformat_line_input, line_input))
    return 0;

  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (line_input, "on"))
	async_enable = 1;
      else if (unformat (line_input, "off"))
	async_enable = 0;
      else
	return (clib_error_return (0, "unknown input '%U'",
				   format_unformat_error, line_input));
    }

  ipsec_set_async_mode (async_enable);

  unformat_free (line_input);
  return (NULL);
}

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (set_async_mode_command, static) = {
    .path = "set ipsec async mode",
    .short_help = "set ipsec async mode on|off",
    .function = set_async_mode_command_fn,
};
/* *INDENT-ON* */

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