src/vnet/ipsec/ipsec_spd_policy.h

/*
 * 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.
 */
#ifndef __IPSEC_SPD_POLICY_H__
#define __IPSEC_SPD_POLICY_H__

#include <vnet/ipsec/ipsec_spd.h>

#define foreach_ipsec_policy_action \
  _ (0, BYPASS, "bypass")           \
  _ (1, DISCARD, "discard")         \
  _ (2, RESOLVE, "resolve")         \
  _ (3, PROTECT, "protect")

typedef enum
{
#define _(v, f, s) IPSEC_POLICY_ACTION_##f = v,
  foreach_ipsec_policy_action
#undef _
} ipsec_policy_action_t;

#define IPSEC_POLICY_N_ACTION (IPSEC_POLICY_ACTION_PROTECT + 1)

typedef struct
{
  ip46_address_t start, stop;
} ip46_address_range_t;

typedef struct
{
  /* Ports stored in network byte order */
  u16 start, stop;
} port_range_t;

/**
 * @brief
 * Policy packet & bytes counters
 */
extern vlib_combined_counter_main_t ipsec_spd_policy_counters;

/**
 * @brief A Secruity Policy. An entry in an SPD
 */
typedef struct ipsec_policy_t_
{
  u32 id;
  i32 priority;

  // the type of policy
  ipsec_spd_policy_type_t type;

  // Selector
  u8 is_ipv6;
  ip46_address_range_t laddr;
  ip46_address_range_t raddr;
  u8 protocol;
  port_range_t lport;
  port_range_t rport;

  // Policy
  ipsec_policy_action_t policy;
  u32 sa_id;
  u32 sa_index;
} ipsec_policy_t;

/**
 * @brief Add/Delete a SPD
 */
extern int ipsec_add_del_policy (vlib_main_t * vm,
				 ipsec_policy_t * policy,
				 int is_add, u32 * stat_index);

extern u8 *format_ipsec_policy (u8 * s, va_list * args);
extern u8 *format_ipsec_policy_action (u8 * s, va_list * args);
extern uword unformat_ipsec_policy_action (unformat_input_t * input,
					   va_list * args);


extern int ipsec_policy_mk_type (bool is_outbound,
				 bool is_ipv6,
				 ipsec_policy_action_t action,
				 ipsec_spd_policy_type_t * type);

#endif /* __IPSEC_SPD_POLICY_H__ */

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