ipsec_cli.c

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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);
  }
  /* *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_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);
 
  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:
 */