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/*
* 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.
*/
#ifndef __MFIB_TYPES_H__
#define __MFIB_TYPES_H__
#include <vnet/fib/fib_types.h>
/**
* Aggregate type for a prefix
*/
typedef struct mfib_prefix_t_ {
/**
* The mask length
*/
u16 fp_len;
/**
* protocol type
*/
fib_protocol_t fp_proto;
/**
* Pad to keep the address 4 byte aligned
*/
u8 ___fp___pad;
/**
* The address type is not deriveable from the fp_addr member.
* If it's v4, then the first 3 u32s of the address will be 0.
* v6 addresses (even v4 mapped ones) have at least 2 u32s assigned
* to non-zero values. true. but when it's all zero, one cannot decide.
*/
ip46_address_t fp_grp_addr;
ip46_address_t fp_src_addr;
} mfib_prefix_t;
typedef enum mfib_entry_attribute_t_
{
MFIB_ENTRY_ATTRIBUTE_FIRST = 0,
/**
* The control planes needs packets mathing this entry to generate
* a signal.
*/
MFIB_ENTRY_SIGNAL = MFIB_ENTRY_ATTRIBUTE_FIRST,
/**
* Drop all traffic to this route
*/
MFIB_ENTRY_DROP,
/**
* The control plane needs to be informed of coneected sources
*/
MFIB_ENTRY_CONNECTED,
/**
* Accept packets from any incpoming interface
* Use with extreme caution
*/
MFIB_ENTRY_ACCEPT_ALL_ITF,
/**
* Exclusive - like its unicast counterpart. the source has provided
* the forwarding DPO directly. The entry therefore does not resolve
* paths via a path-list
*/
MFIB_ENTRY_EXCLUSIVE,
MFIB_ENTRY_INHERIT_ACCEPT,
MFIB_ENTRY_ATTRIBUTE_LAST = MFIB_ENTRY_INHERIT_ACCEPT,
} mfib_entry_attribute_t;
#define FOR_EACH_MFIB_ATTRIBUTE(_item) \
for (_item = MFIB_ENTRY_ATTRIBUTE_FIRST; \
_item <= MFIB_ENTRY_ATTRIBUTE_LAST; \
_item++)
#define MFIB_ENTRY_NAMES_SHORT { \
[MFIB_ENTRY_SIGNAL] = "S", \
[MFIB_ENTRY_CONNECTED] = "C", \
[MFIB_ENTRY_DROP] = "D", \
[MFIB_ENTRY_ACCEPT_ALL_ITF] = "AA", \
[MFIB_ENTRY_INHERIT_ACCEPT] = "IA", \
[MFIB_ENTRY_EXCLUSIVE] = "E", \
}
#define MFIB_ENTRY_NAMES_LONG { \
[MFIB_ENTRY_SIGNAL] = "Signal", \
[MFIB_ENTRY_CONNECTED] = "Connected", \
[MFIB_ENTRY_DROP] = "Drop", \
[MFIB_ENTRY_ACCEPT_ALL_ITF] = "Accept-all-itf", \
[MFIB_ENTRY_INHERIT_ACCEPT] = "Inherit-Accept", \
[MFIB_ENTRY_EXCLUSIVE] = "Exclusive", \
}
typedef enum mfib_entry_flags_t_
{
MFIB_ENTRY_FLAG_NONE,
MFIB_ENTRY_FLAG_SIGNAL = (1 << MFIB_ENTRY_SIGNAL),
MFIB_ENTRY_FLAG_DROP = (1 << MFIB_ENTRY_DROP),
MFIB_ENTRY_FLAG_CONNECTED = (1 << MFIB_ENTRY_CONNECTED),
MFIB_ENTRY_FLAG_ACCEPT_ALL_ITF = (1 << MFIB_ENTRY_ACCEPT_ALL_ITF),
MFIB_ENTRY_FLAG_EXCLUSIVE = (1 << MFIB_ENTRY_EXCLUSIVE),
MFIB_ENTRY_FLAG_INHERIT_ACCEPT = (1 << MFIB_ENTRY_INHERIT_ACCEPT),
} mfib_entry_flags_t;
typedef enum mfib_itf_attribute_t_
{
MFIB_ITF_ATTRIBUTE_FIRST,
MFIB_ITF_NEGATE_SIGNAL = MFIB_ITF_ATTRIBUTE_FIRST,
MFIB_ITF_ACCEPT,
MFIB_ITF_FORWARD,
MFIB_ITF_SIGNAL_PRESENT,
MFIB_ITF_DONT_PRESERVE,
MFIB_ITF_ATTRIBUTE_LAST = MFIB_ITF_DONT_PRESERVE,
} mfib_itf_attribute_t;
#define FOR_EACH_MFIB_ITF_ATTRIBUTE(_item) \
for (_item = MFIB_ITF_ATTRIBUTE_FIRST; \
_item <= MFIB_ITF_ATTRIBUTE_LAST; \
_item++)
#define MFIB_ITF_NAMES_SHORT { \
[MFIB_ITF_NEGATE_SIGNAL] = "NS", \
[MFIB_ITF_ACCEPT] = "A", \
[MFIB_ITF_FORWARD] = "F", \
[MFIB_ITF_SIGNAL_PRESENT] = "SP", \
[MFIB_ITF_DONT_PRESERVE] = "DP", \
}
#define MFIB_ITF_NAMES_LONG { \
[MFIB_ITF_NEGATE_SIGNAL] = "Negate-Signal", \
[MFIB_ITF_ACCEPT] = "Accept", \
[MFIB_ITF_FORWARD] = "Forward", \
[MFIB_ITF_SIGNAL_PRESENT] = "Signal-Present", \
[MFIB_ITF_DONT_PRESERVE] = "Don't-Preserve", \
}
typedef enum mfib_itf_flags_t_
{
MFIB_ITF_FLAG_NONE,
MFIB_ITF_FLAG_NEGATE_SIGNAL = (1 << MFIB_ITF_NEGATE_SIGNAL),
MFIB_ITF_FLAG_ACCEPT = (1 << MFIB_ITF_ACCEPT),
MFIB_ITF_FLAG_FORWARD = (1 << MFIB_ITF_FORWARD),
MFIB_ITF_FLAG_SIGNAL_PRESENT = (1 << MFIB_ITF_SIGNAL_PRESENT),
MFIB_ITF_FLAG_DONT_PRESERVE = (1 << MFIB_ITF_DONT_PRESERVE),
} mfib_itf_flags_t;
/**
* Possible [control plane] sources of MFIB entries
*/
typedef enum mfib_source_t_
{
MFIB_SOURCE_SPECIAL,
MFIB_SOURCE_6RD,
MFIB_SOURCE_API,
MFIB_SOURCE_CLI,
MFIB_SOURCE_VXLAN,
MFIB_SOURCE_DHCP,
MFIB_SOURCE_SRv6,
MFIB_SOURCE_GTPU,
MFIB_SOURCE_VXLAN_GPE,
MFIB_SOURCE_GENEVE,
MFIB_SOURCE_IGMP,
MFIB_SOURCE_VXLAN_GBP,
MFIB_SOURCE_PLUGIN_LOW,
MFIB_SOURCE_RR,
MFIB_SOURCE_INTERFACE, /* used exclusively for mfib locks */
MFIB_SOURCE_DEFAULT_ROUTE,
} mfib_source_t;
/* clang-format off */
#define MFIB_SOURCE_NAMES { \
[MFIB_SOURCE_SPECIAL] = "Special", \
[MFIB_SOURCE_6RD] = "6RD", \
[MFIB_SOURCE_API] = "API", \
[MFIB_SOURCE_CLI] = "CLI", \
[MFIB_SOURCE_DHCP] = "DHCP", \
[MFIB_SOURCE_VXLAN] = "VXLAN", \
[MFIB_SOURCE_SRv6] = "SRv6", \
[MFIB_SOURCE_GTPU] = "GTPU", \
[MFIB_SOURCE_VXLAN_GPE] = "VXLAN-GPE", \
[MFIB_SOURCE_GENEVE] = "Geneve", \
[MFIB_SOURCE_IGMP] = "IGMP", \
[MFIB_SOURCE_VXLAN_GBP] = "VXLAN-GBP", \
[MFIB_SOURCE_PLUGIN_LOW] = "plugin-low", \
[MFIB_SOURCE_RR] = "Recursive-resolution", \
[MFIB_SOURCE_INTERFACE] = "Interface", \
[MFIB_SOURCE_DEFAULT_ROUTE] = "Default Route", \
}
/* clang-format on */
#define FOREACH_MFIB_SOURCE(_ms) \
for (_ms = MFIB_SOURCE_SPECIAL; \
_ms <= MFIB_SOURCE_DEFAULT_ROUTE; \
_ms++)
#define MFIB_N_SOURCES (MFIB_SOURCE_DEFAULT_ROUTE + 1)
#define MFIB_SOURCE_NONE (MFIB_SOURCE_DEFAULT_ROUTE + 1)
/**
* \brief Compare two prefixes for equality
*/
extern int mfib_prefix_cmp(const mfib_prefix_t *p1,
const mfib_prefix_t *p2);
extern u8 * format_mfib_prefix(u8 * s, va_list * args);
extern u8 *format_mfib_entry_flags(u8 * s, va_list * args);
extern u8 *format_mfib_itf_flags(u8 * s, va_list * args);
extern uword unformat_mfib_itf_flags(unformat_input_t * input,
va_list * args);
extern uword unformat_mfib_entry_flags(unformat_input_t * input,
va_list * args);
/**
* \brief Compare two prefixes for covering relationship
*
* \return non-zero if the first prefix is a cover for the second
*/
extern int mfib_prefix_is_cover(const mfib_prefix_t *p1,
const mfib_prefix_t *p2);
/**
* \brief Return true is the prefix is a host prefix
*/
extern int mfib_prefix_is_host(const mfib_prefix_t *p);
extern fib_forward_chain_type_t mfib_forw_chain_type_from_dpo_proto(dpo_proto_t proto);
extern fib_forward_chain_type_t mfib_forw_chain_type_from_fib_proto(fib_protocol_t proto);
#endif
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