# Copyright (c) 2018 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.

*** Settings ***
| Resource | resources/libraries/robot/performance/performance_setup.robot
| Library | resources.libraries.python.QemuUtils
| ...
| Force Tags | 2_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | NDRPDR
| ... | NIC_Intel-XXV710 | DOT1Q | L2BDMACLRN | BASE | VHOST | 1VM
| ... | VHOST_1024
| ...
| Suite Setup | Set up 2-node performance topology with DUT's NIC model
| ... | L2 | Intel-XXV710
| Suite Teardown | Tear down 2-node performance topology
| ...
| Test Setup | Set up performance test
| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
| ... | ${min_rate}pps | ${framesize} | ${traffic_profile}
| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
| ...
| Test Template | Local Template
| ...
| Documentation | *RFC2544: Pkt throughput L2BD with vhost abd IEEE 802.1Q test
| ... | cases*
| ...
| ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology with\
| ... | single links between nodes.
| ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 switching of IPv4. IEEE\
| ... | 802.1Q tagging is applied on link between DUT1-if2 and TG-if2.
| ... | *[Cfg] DUT configuration:* DUT1 is configured with L2 bridge-domain and\
| ... | MAC learning enabled. Qemu Guest is connected to VPP via vhost-user\
| ... | interfaces. Guest is running DPDK testpmd interconnecting vhost-user\
| ... | interfaces, forwarding mode is set to io, rxd/txd=1024. DUT1 is tested\
| ... | with 2p25GE NIC XXV710 by Intel.
| ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
| ... | Rate) with zero packet loss tolerance or throughput PDR (Partial Drop\
| ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
| ... | of packets transmitted. NDR and PDR are discovered for different\
| ... | Ethernet L2 frame sizes using MLRsearch library. Test packets are\
| ... | generated by TG on links to DUTs. TG traffic profile contains two L3\
| ... | flow-groups (flow-group per direction, 254 flows per flow-group) with\
| ... | all packets containing Ethernet header, IPv4 header with IP protocol=61\
| ... | and static payload. MAC addresses are matching MAC addresses of the TG\
| ... | node interfaces.
| ... | *[Ref] Applicable standard specifications:* RFC2544.

*** Variables ***
| ${subid}= | 10
| ${tag_rewrite}= | pop-1
| ${overhead}= | ${4}
# Socket names
| ${bd_id1}= | 1
| ${bd_id2}= | 2
| ${sock1}= | /tmp/sock-1-${bd_id1}
| ${sock2}= | /tmp/sock-1-${bd_id2}
# XXV710-DA2 bandwidth limit ~49Gbps/2=24.5Gbps
| ${s_24.5G}= | ${24500000000}
# XXV710-DA2 Mpps limit 37.5Mpps/2=18.75Mpps
| ${s_18.75Mpps}= | ${18750000}
# Traffic profile:
| ${traffic_profile}= | trex-sl-2n-dot1qip4asym-ip4src254

*** Keywords ***
| Local Template
| | [Documentation]
| | ... | [Cfg] Each DUT runs L2BD switching with VLAN and uses ${phy_cores}\
| | ... | physical core(s) for worker threads.
| | ... | [Ver] Measure NDR and PDR values using MLRsearch algorithm.\
| | ...
| | ... | *Arguments:*
| | ... | - framesize - Framesize in Bytes in integer or string (IMIX_v4_1).
| | ... | Type: integer, string
| | ... | - phy_cores - Number of physical cores. Type: integer
| | ... | - rxq - Number of RX queues, default value: ${None}. Type: integer
| | ...
| | [Arguments] | ${framesize} | ${phy_cores} | ${rxq}=${None}
| | ...
| | Set Test Variable | ${framesize}
| | Set Test Variable | ${min_rate} | ${10000}
| | ${dut1_vm_refs}= | Create Dictionary
| | Set Test Variable | ${dut1_vm_refs}
| | ...
| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
| | And Add PCI devices to all DUTs
| | ${max_rate} | ${jumbo} = | Get Max Rate And Jumbo And Handle Multi Seg
| | ... | ${s_24.5G} | ${framesize} | pps_limit=${s_18.75Mpps}
| | ... | overhead=${overhead}
| | And Apply startup configuration on all VPP DUTs
| | When Initialize L2 bridge domains with Vhost-User and VLAN in circular topology
| | ... | ${bd_id1} | ${bd_id2} | ${sock1} | ${sock2} | ${subid}
| | ... | ${tag_rewrite}
| | ${vm1}= | And Configure guest VM with dpdk-testpmd connected via vhost-user
| | ... | DUT1 | ${sock1} | ${sock2} | DUT1_VM1 | jumbo=${jumbo}
| | ... | perf_qemu_qsz=${1024} | use_tuned_cfs=${False}
| | Set To Dictionary | ${dut1_vm_refs} | DUT1_VM1 | ${vm1}
| | Then Find NDR and PDR intervals using optimized search
| | ... | ${framesize} | ${traffic_profile} | ${min_rate} | ${max_rate}

*** Test Cases ***
| tc01-64B-1c-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr
| | [Tags] | 64B | 1C
| | framesize=${64} | phy_cores=${1}

| tc02-64B-2c-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr
| | [Tags] | 64B | 2C
| | framesize=${64} | phy_cores=${2}

| tc03-64B-4c-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr
| | [Tags] | 64B | 4C
| | framesize=${64} | phy_cores=${4}

| tc04-1518B-1c-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr
| | [Tags] | 1518B | 1C
| | framesize=${1518} | phy_cores=${1}

| tc05-1518B-2c-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr
| | [Tags] | 1518B | 2C
| | framesize=${1518} | phy_cores=${2}

| tc06-1518B-4c-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr
| | [Tags] | 1518B | 4C
| | framesize=${1518} | phy_cores=${4}

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/*
 *------------------------------------------------------------------
 * ipsec_api.c - ipsec api
 *
 * 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 <vnet/vnet.h>
#include <vlibmemory/api.h>

#include <vnet/interface.h>
#include <vnet/api_errno.h>
#include <vnet/ip/ip.h>
#include <vnet/ip/ip_types_api.h>
#include <vnet/ipsec/ipsec_types_api.h>
#include <vnet/tunnel/tunnel_types_api.h>
#include <vnet/fib/fib.h>
#include <vnet/ipip/ipip.h>
#include <vnet/tunnel/tunnel_types_api.h>

#include <vnet/vnet_msg_enum.h>

#if WITH_LIBSSL > 0
#include <vnet/ipsec/ipsec.h>
#include <vnet/ipsec/ipsec_tun.h>
#include <vnet/ipsec/ipsec_itf.h>
#endif /* IPSEC */

#define vl_typedefs		/* define message structures */
#include <vnet/vnet_all_api_h.h>
#undef vl_typedefs

#define vl_endianfun		/* define message structures */
#include <vnet/vnet_all_api_h.h>
#undef vl_endianfun

/* instantiate all the print functions we know about */
#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
#define vl_printfun
#include <vnet/vnet_all_api_h.h>
#undef vl_printfun

#include <vlibapi/api_helper_macros.h>

#define foreach_vpe_api_msg                                     \
_(IPSEC_SPD_ADD_DEL, ipsec_spd_add_del)                         \
_(IPSEC_INTERFACE_ADD_DEL_SPD, ipsec_interface_add_del_spd)     \
_(IPSEC_SPD_ENTRY_ADD_DEL, ipsec_spd_entry_add_del)             \
_(IPSEC_SAD_ENTRY_ADD_DEL, ipsec_sad_entry_add_del)             \
_(IPSEC_SAD_ENTRY_ADD_DEL_V2, ipsec_sad_entry_add_del_v2)       \
_(IPSEC_SA_DUMP, ipsec_sa_dump)                                 \
_(IPSEC_SA_V2_DUMP, ipsec_sa_v2_dump)                           \
_(IPSEC_SPDS_DUMP, ipsec_spds_dump)                             \
_(IPSEC_SPD_DUMP, ipsec_spd_dump)                               \
_(IPSEC_SPD_INTERFACE_DUMP, ipsec_spd_interface_dump)		\
_(IPSEC_ITF_CREATE, ipsec_itf_create)                           \
_(IPSEC_ITF_DELETE, ipsec_itf_delete)                           \
_(IPSEC_ITF_DUMP, ipsec_itf_dump)                               \
_(IPSEC_SELECT_BACKEND, ipsec_select_backend)                   \
_(IPSEC_BACKEND_DUMP, ipsec_backend_dump)                       \
_(IPSEC_TUNNEL_PROTECT_UPDATE, ipsec_tunnel_protect_update)     \
_(IPSEC_TUNNEL_PROTECT_DEL, ipsec_tunnel_protect_del)           \
_(IPSEC_TUNNEL_PROTECT_DUMP, ipsec_tunnel_protect_dump)         \
_(IPSEC_SET_ASYNC_MODE, ipsec_set_async_mode)

static void
vl_api_ipsec_spd_add_del_t_handler (vl_api_ipsec_spd_add_del_t * mp)
{
#if WITH_LIBSSL == 0
  clib_warning ("unimplemented");
#else

  vlib_main_t *vm __attribute__ ((unused)) = vlib_get_main ();
  vl_api_ipsec_spd_add_del_reply_t *rmp;
  int rv;

  rv = ipsec_add_del_spd (vm, ntohl (mp->spd_id), mp->is_add);

  REPLY_MACRO (VL_API_IPSEC_SPD_ADD_DEL_REPLY);
#endif
}

static void vl_api_ipsec_interface_add_del_spd_t_handler
  (vl_api_ipsec_interface_add_del_spd_t * mp)
{
  vlib_main_t *vm __attribute__ ((unused)) = vlib_get_main ();
  vl_api_ipsec_interface_add_del_spd_reply_t *rmp;
  int rv;
  u32 sw_if_index __attribute__ ((unused));
  u32 spd_id __attribute__ ((unused));

  sw_if_index = ntohl (mp->sw_if_index);
  spd_id = ntohl (mp->spd_id);

  VALIDATE_SW_IF_INDEX (mp);

#if WITH_LIBSSL > 0
  rv = ipsec_set_interface_spd (vm, sw_if_index, spd_id, mp->is_add);
#else
  rv = VNET_API_ERROR_UNIMPLEMENTED;
#endif

  BAD_SW_IF_INDEX_LABEL;

  REPLY_MACRO (VL_API_IPSEC_INTERFACE_ADD_DEL_SPD_REPLY);
}

static void vl_api_ipsec_tunnel_protect_update_t_handler
  (vl_api_ipsec_tunnel_protect_update_t * mp)
{
  vlib_main_t *vm __attribute__ ((unused)) = vlib_get_main ();
  vl_api_ipsec_tunnel_protect_update_reply_t *rmp;
  u32 sw_if_index, ii, *sa_ins = NULL;
  ip_address_t nh;
  int rv;

  sw_if_index = ntohl (mp->tunnel.sw_if_index);

  VALIDATE_SW_IF_INDEX (&(mp->tunnel));

#if WITH_LIBSSL > 0

  for (ii = 0; ii < mp->tunnel.n_sa_in; ii++)
    vec_add1 (sa_ins, ntohl (mp->tunnel.sa_in[ii]));

  ip_address_decode2 (&mp->tunnel.nh, &nh);

  rv = ipsec_tun_protect_update (sw_if_index, &nh,
				 ntohl (mp->tunnel.sa_out), sa_ins);
#else
  rv = VNET_API_ERROR_UNIMPLEMENTED;
#endif

  BAD_SW_IF_INDEX_LABEL;

  REPLY_MACRO (VL_API_IPSEC_TUNNEL_PROTECT_UPDATE_REPLY);
}

static void vl_api_ipsec_tunnel_protect_del_t_handler
  (vl_api_ipsec_tunnel_protect_del_t * mp)
{
  vlib_main_t *vm __attribute__ ((unused)) = vlib_get_main ();
  vl_api_ipsec_tunnel_protect_del_reply_t *rmp;
  ip_address_t nh;
  u32 sw_if_index;
  int rv;

  sw_if_index = ntohl (mp->sw_if_index);

  VALIDATE_SW_IF_INDEX (mp);

#if WITH_LIBSSL > 0
  ip_address_decode2 (&mp->nh, &nh);
  rv = ipsec_tun_protect_del (sw_if_index, &nh);
#else
  rv = VNET_API_ERROR_UNIMPLEMENTED;
#endif

  BAD_SW_IF_INDEX_LABEL;

  REPLY_MACRO (VL_API_IPSEC_TUNNEL_PROTECT_DEL_REPLY);
}

typedef struct ipsec_dump_walk_ctx_t_
{
  vl_api_registration_t *reg;
  u32 context;
} ipsec_dump_walk_ctx_t;

static walk_rc_t
send_ipsec_tunnel_protect_details (index_t itpi, void *arg)
{
  ipsec_dump_walk_ctx_t *ctx = arg;
  vl_api_ipsec_tunnel_protect_details_t *mp;
  ipsec_tun_protect_t *itp;
  u32 ii = 0;
  ipsec_sa_t *sa;

  itp = ipsec_tun_protect_get (itpi);

  mp = vl_msg_api_alloc (sizeof (*mp) + (sizeof (u32) * itp->itp_n_sa_in));
  clib_memset (mp, 0, sizeof (*mp));
  mp->_vl_msg_id = ntohs (VL_API_IPSEC_TUNNEL_PROTECT_DETAILS);
  mp->context = ctx->context;

  mp->tun.sw_if_index = htonl (itp->itp_sw_if_index);
  ip_address_encode2 (itp->itp_key, &mp->tun.nh);

  sa = ipsec_sa_get (itp->itp_out_sa);
  mp->tun.sa_out = htonl (sa->id);
  mp->tun.n_sa_in = itp->itp_n_sa_in;
  /* *INDENT-OFF* */
  FOR_EACH_IPSEC_PROTECT_INPUT_SA(itp, sa,
  ({
    mp->tun.sa_in[ii++] = htonl (sa->id);
  }));
  /* *INDENT-ON* */

  vl_api_send_msg (ctx->reg, (u8 *) mp);

  return (WALK_CONTINUE);
}

static void
vl_api_ipsec_tunnel_protect_dump_t_handler (vl_api_ipsec_tunnel_protect_dump_t
					    * mp)
{
  vl_api_registration_t *reg;
  u32 sw_if_index;

#if WITH_LIBSSL > 0
  reg = vl_api_client_index_to_registration (mp->client_index);
  if (!reg)
    return;

  ipsec_dump_walk_ctx_t ctx = {
    .reg = reg,
    .context = mp->context,
  };

  sw_if_index = ntohl (mp->sw_if_index);

  if (~0 == sw_if_index)
    {
      ipsec_tun_protect_walk (send_ipsec_tunnel_protect_details, &ctx);
    }
  else
    {
      ipsec_tun_protect_walk_itf (sw_if_index,
				  send_ipsec_tunnel_protect_details, &ctx);
    }
#else
  clib_warning ("unimplemented");
#endif
}

static int
ipsec_spd_action_decode (vl_api_ipsec_spd_action_t in,
			 ipsec_policy_action_t * out)
{
  in = clib_net_to_host_u32 (in);

  switch (in)
    {
#define _(v,f,s) case IPSEC_API_SPD_ACTION_##f: \
      *out = IPSEC_POLICY_ACTION_##f;              \
      return (0);
      foreach_ipsec_policy_action
#undef _
    }
  return (VNET_API_ERROR_UNIMPLEMENTED);
}

static void vl_api_ipsec_spd_entry_add_del_t_handler
  (vl_api_ipsec_spd_entry_add_del_t * mp)
{
  vlib_main_t *vm __attribute__ ((unused)) = vlib_get_main ();
  vl_api_ipsec_spd_entry_add_del_reply_t *rmp;
  ip46_type_t itype;
  u32 stat_index;
  int rv;

  stat_index = ~0;

#if WITH_LIBSSL > 0
  ipsec_policy_t p;

  clib_memset (&p, 0, sizeof (p));

  p.id = ntohl (mp->entry.spd_id);
  p.priority = ntohl (mp->entry.priority);

  itype = ip_address_decode (&mp->entry.remote_address_start, &p.raddr.start);
  ip_address_decode (&mp->entry.remote_address_stop, &p.raddr.stop);
  ip_address_decode (&mp->entry.local_address_start, &p.laddr.start);
  ip_address_decode (&mp->entry.local_address_stop, &p.laddr.stop);

  p.is_ipv6 = (itype == IP46_TYPE_IP6);

  p.protocol = mp->entry.protocol;
  p.rport.start = ntohs (mp->entry.remote_port_start);
  p.rport.stop = ntohs (mp->entry.remote_port_stop);
  p.lport.start = ntohs (mp->entry.local_port_start);
  p.lport.stop = ntohs (mp->entry.local_port_stop);

  rv = ipsec_spd_action_decode (mp->entry.policy, &p.policy);

  if (rv)
    goto out;

  /* policy action resolve unsupported */
  if (p.policy == IPSEC_POLICY_ACTION_RESOLVE)
    {
      clib_warning ("unsupported action: 'resolve'");
      rv = VNET_API_ERROR_UNIMPLEMENTED;
      goto out;
    }
  p.sa_id = ntohl (mp->entry.sa_id);
  rv =
    ipsec_policy_mk_type (mp->entry.is_outbound, p.is_ipv6, p.policy,
			  &p.type);
  if (rv)
    goto out;

  rv = ipsec_add_del_policy (vm, &p, mp->is_add, &stat_index);
  if (rv)
    goto out;

#else
  rv = VNET_API_ERROR_UNIMPLEMENTED;
  goto out;
#endif

out:
  /* *INDENT-OFF* */
  REPLY_MACRO2 (VL_API_IPSEC_SPD_ENTRY_ADD_DEL_REPLY,
  ({
    rmp->stat_index = ntohl(stat_index);
  }));
  /* *INDENT-ON* */
}

static void vl_api_ipsec_sad_entry_add_del_t_handler
  (vl_api_ipsec_sad_entry_add_del_t * mp)
{
  vlib_main_t *vm __attribute__ ((unused)) = vlib_get_main ();
  vl_api_ipsec_sad_entry_add_del_reply_t *rmp;
  ip46_address_t tun_src = { }, tun_dst =
  {
  };
  ipsec_key_t crypto_key, integ_key;
  ipsec_crypto_alg_t crypto_alg;
  ipsec_integ_alg_t integ_alg;
  ipsec_protocol_t proto;
  ipsec_sa_flags_t flags;
  u32 id, spi, sa_index = ~0;
  int rv;

#if WITH_LIBSSL > 0

  id = ntohl (mp->entry.sad_id);
  spi = ntohl (mp->entry.spi);

  rv = ipsec_proto_decode (mp->entry.protocol, &proto);

  if (rv)
    goto out;

  rv = ipsec_crypto_algo_decode (mp->entry.crypto_algorithm, &crypto_alg);

  if (rv)
    goto out;

  rv = ipsec_integ_algo_decode (mp->entry.integrity_algorithm, &integ_alg);

  if (rv)
    goto out;

  ipsec_key_decode (&mp->entry.crypto_key, &crypto_key);
  ipsec_key_decode (&mp->entry.integrity_key, &integ_key);

  flags = ipsec_sa_flags_decode (mp->entry.flags);

  ip_address_decode (&mp->entry.tunnel_src, &tun_src);
  ip_address_decode (&mp->entry.tunnel_dst, &tun_dst);

  if (mp->is_add)
    rv = ipsec_sa_add_and_lock (id, spi, proto,
				crypto_alg, &crypto_key,
				integ_alg, &integ_key, flags,
				0, mp->entry.salt, &tun_src, &tun_dst,
				TUNNEL_ENCAP_DECAP_FLAG_NONE,
				IP_DSCP_CS0,
				&sa_index,
				htons (mp->entry.udp_src_port),
				htons (mp->entry.udp_dst_port));
  else
    rv = ipsec_sa_unlock_id (id);

#else
  rv = VNET_API_ERROR_UNIMPLEMENTED;
#endif

out:
  /* *INDENT-OFF* */
  REPLY_MACRO2 (VL_API_IPSEC_SAD_ENTRY_ADD_DEL_REPLY,
  {
    rmp->stat_index = htonl (sa_index);
  });
  /* *INDENT-ON* */
}

static void vl_api_ipsec_sad_entry_add_del_v2_t_handler
  (vl_api_ipsec_sad_entry_add_del_v2_t * mp)
{
  vlib_main_t *vm __attribute__ ((unused)) = vlib_get_main ();
  vl_api_ipsec_sad_entry_add_del_v2_reply_t *rmp;
  ip46_address_t tun_src = { }, tun_dst =
  {
  };
  tunnel_encap_decap_flags_t tunnel_flags;
  ipsec_key_t crypto_key, integ_key;
  ipsec_crypto_alg_t crypto_alg;
  ipsec_integ_alg_t integ_alg;
  ipsec_protocol_t proto;
  ipsec_sa_flags_t flags;
  u32 id, spi, sa_index = ~0;
  int rv;

#if WITH_LIBSSL > 0

  id = ntohl (mp->entry.sad_id);
  spi = ntohl (mp->entry.spi);

  rv = ipsec_proto_decode (mp->entry.protocol, &proto);

  if (rv)
    goto out;

  rv = ipsec_crypto_algo_decode (mp->entry.crypto_algorithm, &crypto_alg);

  if (rv)
    goto out;

  rv = ipsec_integ_algo_decode (mp->entry.integrity_algorithm, &integ_alg);

  if (rv)
    goto out;

  rv =
    tunnel_encap_decap_flags_decode (mp->entry.tunnel_flags, &tunnel_flags);

  if (rv)
    goto out;

  ipsec_key_decode (&mp->entry.crypto_key, &crypto_key);
  ipsec_key_decode (&mp->entry.integrity_key, &integ_key);

  flags = ipsec_sa_flags_decode (mp->entry.flags);

  ip_address_decode (&mp->entry.tunnel_src, &tun_src);
  ip_address_decode (&mp->entry.tunnel_dst, &tun_dst);

  if (mp->is_add)
    rv = ipsec_sa_add_and_lock (
      id, spi, proto, crypto_alg, &crypto_key, integ_alg, &integ_key, flags,
      htonl (mp->entry.tx_table_id), mp->entry.salt, &tun_src, &tun_dst,
      tunnel_flags, ip_dscp_decode (mp->entry.dscp), &sa_index,
      htons (mp->entry.udp_src_port), htons (mp->entry.udp_dst_port));
  else
    rv = ipsec_sa_unlock_id (id);

#else
  rv = VNET_API_ERROR_UNIMPLEMENTED;
#endif

out:
  /* *INDENT-OFF* */
  REPLY_MACRO2 (VL_API_IPSEC_SAD_ENTRY_ADD_DEL_V2_REPLY,
  {
    rmp->stat_index = htonl (sa_index);
  });
  /* *INDENT-ON* */
}

static void
send_ipsec_spds_details (ipsec_spd_t * spd, vl_api_registration_t * reg,
			 u32 context)
{
  vl_api_ipsec_spds_details_t *mp;
  u32 n_policies = 0;

  mp = vl_msg_api_alloc (sizeof (*mp));
  clib_memset (mp, 0, sizeof (*mp));
  mp->_vl_msg_id = ntohs (VL_API_IPSEC_SPDS_DETAILS);
  mp->context = context;

  mp->spd_id = htonl (spd->id);
#define _(s, n) n_policies += vec_len (spd->policies[IPSEC_SPD_POLICY_##s]);
  foreach_ipsec_spd_policy_type
#undef _
    mp->npolicies = htonl (n_policies);

  vl_api_send_msg (reg, (u8 *) mp);
}

static void
vl_api_ipsec_spds_dump_t_handler (vl_api_ipsec_spds_dump_t * mp)
{
  vl_api_registration_t *reg;
  ipsec_main_t *im = &ipsec_main;
  ipsec_spd_t *spd;
#if WITH_LIBSSL > 0
  reg = vl_api_client_index_to_registration (mp->client_index);
  if (!reg)
    return;

  /* *INDENT-OFF* */
  pool_foreach (spd, im->spds)  {
    send_ipsec_spds_details (spd, reg, mp->context);
  }
  /* *INDENT-ON* */
#else
  clib_warning ("unimplemented");
#endif
}

vl_api_ipsec_spd_action_t
ipsec_spd_action_encode (ipsec_policy_action_t in)
{
  vl_api_ipsec_spd_action_t out = IPSEC_API_SPD_ACTION_BYPASS;

  switch (in)
    {
#define _(v,f,s) case IPSEC_POLICY_ACTION_##f: \
      out = IPSEC_API_SPD_ACTION_##f;          \
      break;
      foreach_ipsec_policy_action
#undef _
    }
  return (clib_host_to_net_u32 (out));
}

static void
send_ipsec_spd_details (ipsec_policy_t * p, vl_api_registration_t * reg,
			u32 context)
{
  vl_api_ipsec_spd_details_t *mp;

  mp = vl_msg_api_alloc (sizeof (*mp));
  clib_memset (mp, 0, sizeof (*mp));
  mp->_vl_msg_id = ntohs (VL_API_IPSEC_SPD_DETAILS);
  mp->context = context;

  mp->entry.spd_id = htonl (p->id);
  mp->entry.priority = htonl (p->priority);
  mp->entry.is_outbound = ((p->type == IPSEC_SPD_POLICY_IP6_OUTBOUND) ||
			   (p->type == IPSEC_SPD_POLICY_IP4_OUTBOUND));

  ip_address_encode (&p->laddr.start, IP46_TYPE_ANY,
		     &mp->entry.local_address_start);
  ip_address_encode (&p->laddr.stop, IP46_TYPE_ANY,
		     &mp->entry.local_address_stop);
  ip_address_encode (&p->raddr.start, IP46_TYPE_ANY,
		     &mp->entry.remote_address_start);
  ip_address_encode (&p->raddr.stop, IP46_TYPE_ANY,
		     &mp->entry.remote_address_stop);
  mp->entry.local_port_start = htons (p->lport.start);
  mp->entry.local_port_stop = htons (p->lport.stop);
  mp->entry.remote_port_start = htons (p->rport.start);
  mp->entry.remote_port_stop = htons (p->rport.stop);
  mp->entry.protocol = p->protocol;
  mp->entry.policy = ipsec_spd_action_encode (p->policy);
  mp->entry.sa_id = htonl (p->sa_id);

  vl_api_send_msg (reg, (u8 *) mp);
}

static void
vl_api_ipsec_spd_dump_t_handler (vl_api_ipsec_spd_dump_t * mp)
{
  vl_api_registration_t *reg;
  ipsec_main_t *im = &ipsec_main;
  ipsec_spd_policy_type_t ptype;
  ipsec_policy_t *policy;
  ipsec_spd_t *spd;
  uword *p;
  u32 spd_index, *ii;
#if WITH_LIBSSL > 0
  reg = vl_api_client_index_to_registration (mp->client_index);
  if (!reg)
    return;

  p = hash_get (im->spd_index_by_spd_id, ntohl (mp->spd_id));
  if (!p)
    return;

  spd_index = p[0];
  spd = pool_elt_at_index (im->spds, spd_index);

  /* *INDENT-OFF* */
  FOR_EACH_IPSEC_SPD_POLICY_TYPE(ptype) {
    vec_foreach(ii, spd->policies[ptype])
      {
        policy = pool_elt_at_index(im->policies, *ii);

        if (mp->sa_id == ~(0) || ntohl (mp->sa_id) == policy->sa_id)
          send_ipsec_spd_details (policy, reg, mp->context);
      }
  }
  /* *INDENT-ON* */
#else
  clib_warning ("unimplemented");
#endif
}

static void
send_ipsec_spd_interface_details (vl_api_registration_t * reg, u32 spd_index,
				  u32 sw_if_index, u32 context)
{
  vl_api_ipsec_spd_interface_details_t *mp;

  mp = vl_msg_api_alloc (sizeof (*mp));
  clib_memset (mp, 0, sizeof (*mp));
  mp->_vl_msg_id = ntohs (VL_API_IPSEC_SPD_INTERFACE_DETAILS);
  mp->context = context;

  mp->spd_index = htonl (spd_index);
  mp->sw_if_index = htonl (sw_if_index);

  vl_api_send_msg (reg, (u8 *) mp);
}

static void
vl_api_ipsec_spd_interface_dump_t_handler (vl_api_ipsec_spd_interface_dump_t *
					   mp)
{
  ipsec_main_t *im = &ipsec_main;
  vl_api_registration_t *reg;
  u32 k, v, spd_index;

#if WITH_LIBSSL > 0
  reg = vl_api_client_index_to_registration (mp->client_index);
  if (!reg)
    return;

  if (mp->spd_index_valid)
    {
      spd_index = ntohl (mp->spd_index);
      /* *INDENT-OFF* */
      hash_foreach(k, v, im->spd_index_by_sw_if_index, ({
        if (v == spd_index)
          send_ipsec_spd_interface_details(reg, v, k, mp->context);
      }));
      /* *INDENT-ON* */
    }
  else
    {
      /* *INDENT-OFF* */
      hash_foreach(k, v, im->spd_index_by_sw_if_index, ({
        send_ipsec_spd_interface_details(reg, v, k, mp->context);
      }));
      /* *INDENT-ON* */
    }

#else
  clib_warning ("unimplemented");
#endif
}

static void
vl_api_ipsec_itf_create_t_handler (vl_api_ipsec_itf_create_t * mp)
{
  vl_api_ipsec_itf_create_reply_t *rmp;
  tunnel_mode_t mode;
  u32 sw_if_index = ~0;
  int rv;

  rv = tunnel_mode_decode (mp->itf.mode, &mode);

  if (!rv)
    rv = ipsec_itf_create (ntohl (mp->itf.user_instance), mode, &sw_if_index);

  /* *INDENT-OFF* */
  REPLY_MACRO2 (VL_API_IPSEC_ITF_CREATE_REPLY,
  ({
    rmp->sw_if_index = htonl (sw_if_index);
  }));
  /* *INDENT-ON* */
}

static void
vl_api_ipsec_itf_delete_t_handler (vl_api_ipsec_itf_delete_t * mp)
{
  vl_api_ipsec_itf_delete_reply_t *rmp;
  int rv;

  rv = ipsec_itf_delete (ntohl (mp->sw_if_index));

  REPLY_MACRO (VL_API_IPSEC_ITF_DELETE_REPLY);
}

static void
vl_api_ipsec_itf_dump_t_handler (vl_api_ipsec_itf_dump_t * mp)
{
}

typedef struct ipsec_sa_dump_match_ctx_t_
{
  index_t sai;
  u32 sw_if_index;
} ipsec_sa_dump_match_ctx_t;

static walk_rc_t
ipsec_sa_dump_match_sa (index_t itpi, void *arg)
{
  ipsec_sa_dump_match_ctx_t *ctx = arg;
  ipsec_tun_protect_t *itp;
  index_t sai;

  itp = ipsec_tun_protect_get (itpi);

  if (itp->itp_out_sa == ctx->sai)
    {
      ctx->sw_if_index = itp->itp_sw_if_index;
      return (WALK_STOP);
    }
  /* *INDENT-OFF* */
  FOR_EACH_IPSEC_PROTECT_INPUT_SAI (itp, sai,
  ({
    if (sai == ctx->sai)
      {
        ctx->sw_if_index = itp->itp_sw_if_index;
        return (WALK_STOP);
      }
  }));
  /* *INDENT-OFF* */

  return (WALK_CONTINUE);
}

static walk_rc_t
send_ipsec_sa_details (ipsec_sa_t * sa, void *arg)
{
  ipsec_dump_walk_ctx_t *ctx = arg;
  vl_api_ipsec_sa_details_t *mp;
  ipsec_main_t *im = &ipsec_main;

  mp = vl_msg_api_alloc (sizeof (*mp));
  clib_memset (mp, 0, sizeof (*mp));
  mp->_vl_msg_id = ntohs (VL_API_IPSEC_SA_DETAILS);
  mp->context = ctx->context;

  mp->entry.sad_id = htonl (sa->id);
  mp->entry.spi = htonl (sa->spi);
  mp->entry.protocol = ipsec_proto_encode (sa->protocol);
  mp->entry.tx_table_id =
    htonl (fib_table_get_table_id (sa->tx_fib_index, FIB_PROTOCOL_IP4));

  mp->entry.crypto_algorithm = ipsec_crypto_algo_encode (sa->crypto_alg);
  ipsec_key_encode (&sa->crypto_key, &mp->entry.crypto_key);

  mp->entry.integrity_algorithm = ipsec_integ_algo_encode (sa->integ_alg);
  ipsec_key_encode (&sa->integ_key, &mp->entry.integrity_key);

  mp->entry.flags = ipsec_sad_flags_encode (sa);
  mp->entry.salt = clib_host_to_net_u32 (sa->salt);

  if (ipsec_sa_is_set_IS_PROTECT (sa))
    {
      ipsec_sa_dump_match_ctx_t ctx = {
        .sai = sa - im->sad,
        .sw_if_index = ~0,
      };
      ipsec_tun_protect_walk (ipsec_sa_dump_match_sa, &ctx);

      mp->sw_if_index = htonl (ctx.sw_if_index);
    }
  else
    mp->sw_if_index = ~0;

  if (ipsec_sa_is_set_IS_TUNNEL (sa))
    {
      ip_address_encode (&sa->tunnel_src_addr, IP46_TYPE_ANY,
			 &mp->entry.tunnel_src);
      ip_address_encode (&sa->tunnel_dst_addr, IP46_TYPE_ANY,
			 &mp->entry.tunnel_dst);
    }
  if (ipsec_sa_is_set_UDP_ENCAP (sa))
    {
      mp->entry.udp_src_port = sa->udp_hdr.src_port;
      mp->entry.udp_dst_port = sa->udp_hdr.dst_port;
    }

  mp->seq_outbound = clib_host_to_net_u64 (((u64) sa->seq));
  mp->last_seq_inbound = clib_host_to_net_u64 (((u64) sa->last_seq));
  if (ipsec_sa_is_set_USE_ESN (sa))
    {
      mp->seq_outbound |= (u64) (clib_host_to_net_u32 (sa->seq_hi));
      mp->last_seq_inbound |= (u64) (clib_host_to_net_u32 (sa->last_seq_hi));
    }
  if (ipsec_sa_is_set_USE_ANTI_REPLAY (sa))
    mp->replay_window = clib_host_to_net_u64 (sa->replay_window);

  mp->stat_index = clib_host_to_net_u32 (sa->stat_index);

  vl_api_send_msg (ctx->reg, (u8 *) mp);

  return (WALK_CONTINUE);
}

static void
vl_api_ipsec_sa_dump_t_handler (vl_api_ipsec_sa_dump_t * mp)
{
  vl_api_registration_t *reg;

#if WITH_LIBSSL > 0
  reg = vl_api_client_index_to_registration (mp->client_index);
  if (!reg)
    return;

  ipsec_dump_walk_ctx_t ctx = {
    .reg = reg,
    .context = mp->context,
  };

  ipsec_sa_walk (send_ipsec_sa_details, &ctx);

#else
  clib_warning ("unimplemented");
#endif
}

static walk_rc_t
send_ipsec_sa_v2_details (ipsec_sa_t * sa, void *arg)
{
  ipsec_dump_walk_ctx_t *ctx = arg;
  vl_api_ipsec_sa_v2_details_t *mp;
  ipsec_main_t *im = &ipsec_main;

  mp = vl_msg_api_alloc (sizeof (*mp));
  clib_memset (mp, 0, sizeof (*mp));
  mp->_vl_msg_id = ntohs (VL_API_IPSEC_SA_V2_DETAILS);
  mp->context = ctx->context;

  mp->entry.sad_id = htonl (sa->id);
  mp->entry.spi = htonl (sa->spi);
  mp->entry.protocol = ipsec_proto_encode (sa->protocol);
  mp->entry.tx_table_id =
    htonl (fib_table_get_table_id (sa->tx_fib_index, FIB_PROTOCOL_IP4));

  mp->entry.crypto_algorithm = ipsec_crypto_algo_encode (sa->crypto_alg);
  ipsec_key_encode (&sa->crypto_key, &mp->entry.crypto_key);

  mp->entry.integrity_algorithm = ipsec_integ_algo_encode (sa->integ_alg);
  ipsec_key_encode (&sa->integ_key, &mp->entry.integrity_key);

  mp->entry.flags = ipsec_sad_flags_encode (sa);
  mp->entry.salt = clib_host_to_net_u32 (sa->salt);

  if (ipsec_sa_is_set_IS_PROTECT (sa))
    {
      ipsec_sa_dump_match_ctx_t ctx = {
        .sai = sa - im->sad,
        .sw_if_index = ~0,
      };
      ipsec_tun_protect_walk (ipsec_sa_dump_match_sa, &ctx);

      mp->sw_if_index = htonl (ctx.sw_if_index);
    }
  else
    mp->sw_if_index = ~0;

  if (ipsec_sa_is_set_IS_TUNNEL (sa))
    {
      ip_address_encode (&sa->tunnel_src_addr, IP46_TYPE_ANY,
			 &mp->entry.tunnel_src);
      ip_address_encode (&sa->tunnel_dst_addr, IP46_TYPE_ANY,
			 &mp->entry.tunnel_dst);
    }
  if (ipsec_sa_is_set_UDP_ENCAP (sa))
    {
      mp->entry.udp_src_port = sa->udp_hdr.src_port;
      mp->entry.udp_dst_port = sa->udp_hdr.dst_port;
    }

  mp->entry.tunnel_flags = tunnel_encap_decap_flags_encode (sa->tunnel_flags);
  mp->entry.dscp = ip_dscp_encode (sa->dscp);

  mp->seq_outbound = clib_host_to_net_u64 (((u64) sa->seq));
  mp->last_seq_inbound = clib_host_to_net_u64 (((u64) sa->last_seq));
  if (ipsec_sa_is_set_USE_ESN (sa))
    {
      mp->seq_outbound |= (u64) (clib_host_to_net_u32 (sa->seq_hi));
      mp->last_seq_inbound |= (u64) (clib_host_to_net_u32 (sa->last_seq_hi));
    }
  if (ipsec_sa_is_set_USE_ANTI_REPLAY (sa))
    mp->replay_window = clib_host_to_net_u64 (sa->replay_window);

  mp->stat_index = clib_host_to_net_u32 (sa->stat_index);

  vl_api_send_msg (ctx->reg, (u8 *) mp);

  return (WALK_CONTINUE);
}

static void
vl_api_ipsec_sa_v2_dump_t_handler (vl_api_ipsec_sa_dump_t * mp)
{
  vl_api_registration_t *reg;

#if WITH_LIBSSL > 0
  reg = vl_api_client_index_to_registration (mp->client_index);
  if (!reg)
    return;

  ipsec_dump_walk_ctx_t ctx = {
    .reg = reg,
    .context = mp->context,
  };

  ipsec_sa_walk (send_ipsec_sa_v2_details, &ctx);

#else
  clib_warning ("unimplemented");
#endif
}

static void
vl_api_ipsec_backend_dump_t_handler (vl_api_ipsec_backend_dump_t * mp)
{
  vl_api_registration_t *rp;
  ipsec_main_t *im = &ipsec_main;
  u32 context = mp->context;

  rp = vl_api_client_index_to_registration (mp->client_index);

  if (rp == 0)
    {
      clib_warning ("Client %d AWOL", mp->client_index);
      return;
    }

  ipsec_ah_backend_t *ab;
  ipsec_esp_backend_t *eb;
  /* *INDENT-OFF* */
  pool_foreach (ab, im->ah_backends) {
    vl_api_ipsec_backend_details_t *mp = vl_msg_api_alloc (sizeof (*mp));
    clib_memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_IPSEC_BACKEND_DETAILS);
    mp->context = context;
    snprintf ((char *)mp->name, sizeof (mp->name), "%.*s", vec_len (ab->name),
              ab->name);
    mp->protocol = ntohl (IPSEC_API_PROTO_AH);
    mp->index = ab - im->ah_backends;
    mp->active = mp->index == im->ah_current_backend ? 1 : 0;
    vl_api_send_msg (rp, (u8 *)mp);
  }
  pool_foreach (eb, im->esp_backends) {
    vl_api_ipsec_backend_details_t *mp = vl_msg_api_alloc (sizeof (*mp));
    clib_memset (mp, 0, sizeof (*mp));
    mp->_vl_msg_id = ntohs (VL_API_IPSEC_BACKEND_DETAILS);
    mp->context = context;
    snprintf ((char *)mp->name, sizeof (mp->name), "%.*s", vec_len (eb->name),
              eb->name);
    mp->protocol = ntohl (IPSEC_API_PROTO_ESP);
    mp->index = eb - im->esp_backends;
    mp->active = mp->index == im->esp_current_backend ? 1 : 0;
    vl_api_send_msg (rp, (u8 *)mp);
  }
  /* *INDENT-ON* */
}

static void
vl_api_ipsec_select_backend_t_handler (vl_api_ipsec_select_backend_t * mp)
{
  ipsec_main_t *im = &ipsec_main;
  vl_api_ipsec_select_backend_reply_t *rmp;
  ipsec_protocol_t protocol;
  int rv = 0;
  if (pool_elts (im->sad) > 0)
    {
      rv = VNET_API_ERROR_INSTANCE_IN_USE;
      goto done;
    }

  rv = ipsec_proto_decode (mp->protocol, &protocol);

  if (rv)
    goto done;

#if WITH_LIBSSL > 0
  switch (protocol)
    {
    case IPSEC_PROTOCOL_ESP:
      rv = ipsec_select_esp_backend (im, mp->index);
      break;
    case IPSEC_PROTOCOL_AH:
      rv = ipsec_select_ah_backend (im, mp->index);
      break;
    default:
      rv = VNET_API_ERROR_INVALID_PROTOCOL;
      break;
    }
#else
  clib_warning ("unimplemented");	/* FIXME */
#endif
done:
  REPLY_MACRO (VL_API_IPSEC_SELECT_BACKEND_REPLY);
}

static void
vl_api_ipsec_set_async_mode_t_handler (vl_api_ipsec_set_async_mode_t * mp)
{
  vl_api_ipsec_set_async_mode_reply_t *rmp;
  int rv = 0;

  vnet_crypto_request_async_mode (mp->async_enable);
  ipsec_set_async_mode (mp->async_enable);

  REPLY_MACRO (VL_API_IPSEC_SET_ASYNC_MODE_REPLY);
}

/*
 * ipsec_api_hookup
 * Add vpe's API message handlers to the table.
 * vlib has already mapped shared memory and
 * added the client registration handlers.
 * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
 */
#define vl_msg_name_crc_list
#include <vnet/vnet_all_api_h.h>
#undef vl_msg_name_crc_list

static void
setup_message_id_table (api_main_t * am)
{
#define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
  foreach_vl_msg_name_crc_ipsec;
#undef _
}

static clib_error_t *
ipsec_api_hookup (vlib_main_t * vm)
{
  api_main_t *am = vlibapi_get_main ();

#define _(N,n)                                                  \
    vl_msg_api_set_handlers(VL_API_##N, #n,                     \
                           vl_api_##n##_t_handler,              \
                           vl_noop_handler,                     \
                           vl_api_##n##_t_endian,               \
                           vl_api_##n##_t_print,                \
                           sizeof(vl_api_##n##_t), 1);
  foreach_vpe_api_msg;
#undef _

  /*
   * Set up the (msg_name, crc, message-id) table
   */
  setup_message_id_table (am);

  return 0;
}

VLIB_API_INIT_FUNCTION (ipsec_api_hookup);

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