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vpp/plugins/vcgn-plugin/vcgn/nat64_defs.h
Ole Troan ea3e1fc875 Plugins: Clean up the plugin directory so that each plugin has its own 
directory and GNU autotools setup.

Change-Id: I6c59d1297389c9413db0c0b9bdf3b759080bf1b8
Signed-off-by: Ole Troan <ot@cisco.com>
2016-06-27 15:04:00 +00:00

577 lines
18 KiB
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/*
*------------------------------------------------------------------
* nat64_defs.h - NAT64 structure definiitions
*
* Copyright (c) 2007-2013 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 __NAT64_DEFS_H__
#define __NAT64_DEFS_H__
#ifdef TOBE_PORTED
#include "spp_platform_common.h"
#include "cgse_defs.h"
#include "xlat_defs.h"
#endif
#include "cnat_cli.h"
#include "cnat_ports.h"
#include "tcp_header_definitions.h"
#include "nat64_tcp_sm.h"
#include "cnat_db.h"
#define NAT64_MAX_FRAG_ID_COUNTERS (256)
#define NAT64_MAX_NAT64_ENTRIES 500
#define NAT64_MAX_ID (NAT64_MAX_NAT64_ENTRIES-1)
#define NAT64_INVALID_ID (0)
#define NAT64_MAX_CFG_INSTANCES 64
#define NAT64_TABLE_ENTRY_DELETED 0
#define NAT64_TABLE_ENTRY_ACTIVE 1
#define NAT64_TABLE_ENTRY_DORMANT 2
#define NAT64_TABLE_ENTRY_INVALID_UIDB 3
#define NAT64_MAX_TRANSLATION_ENTRIES PLATFORM_MAX_TRANSLATION_ENTRIES
#define NAT64_WKP_PREFIX_LEN 96
#define NAT64_WKP_PREFIX_0 0x0064FF9B
#define NAT64_WKP_PREFIX_1 0x00000000
#define NAT64_WKP_PREFIX_2 0x00000000
#define NAT64_WKP_PREFIX_3 0x00000000
/* Reset the expiry time only if it is not 0
** if it is 0 - then queue for delete by clear command
**/
#define NAT64_TIMEOUT_RST(db) \
if(PREDICT_TRUE(db->entry_expires !=0 )) \
db->entry_expires = cnat_current_time;
extern u32 nat64_config_debug_level;
extern u32 nat64_data_path_debug_level;
extern u32 nat64_translation_create_count[NAT64_MAX_NAT64_ENTRIES];
extern u32 nat64_translation_delete_count[NAT64_MAX_NAT64_ENTRIES];
extern u32 nat64_translation_create_rate[NAT64_MAX_NAT64_ENTRIES];
extern u32 nat64_translation_delete_rate[NAT64_MAX_NAT64_ENTRIES];
extern u32 nat64_in2out_forwarding_count[NAT64_MAX_NAT64_ENTRIES];
extern u32 nat64_in2out_forwarding_rate[NAT64_MAX_NAT64_ENTRIES];
extern u32 nat64_out2in_forwarding_count[NAT64_MAX_NAT64_ENTRIES];
extern u32 nat64_out2in_forwarding_rate[NAT64_MAX_NAT64_ENTRIES];
extern u32 nat64_translation_create_count_old[NAT64_MAX_NAT64_ENTRIES];
extern u32 nat64_translation_delete_count_old[NAT64_MAX_NAT64_ENTRIES];
extern u32 nat64_in2out_forwarding_count_old[NAT64_MAX_NAT64_ENTRIES];
extern u32 nat64_out2in_forwarding_count_old[NAT64_MAX_NAT64_ENTRIES];
extern u16 *nat64_frag_id_counter_ptr;
typedef struct {
u64 v6_to_v4_tcp_input_count;
u64 v6_to_v4_tcp_non_translatable_drop_count;
u64 v6_to_v4_tcp_state_drop_count;
u64 v6_to_v4_tcp_no_db_drop_count;
u64 v6_to_v4_tcp_output_count;
} nat64_v6_to_v4_tcp_counter_t;
typedef struct {
u64 v4_to_v6_tcp_input_count;
u64 v4_to_v6_tcp_no_db_drop_count;
u64 v4_to_v6_tcp_v4_init_policy_drop_count;
u64 v4_to_v6_tcp_state_drop_count;
u64 v4_to_v6_tcp_output_count;
u64 v4_to_v6_tcp_filter_drop_count;
} nat64_v4_to_v6_tcp_counter_t;
typedef struct {
u64 v6_to_v4_udp_input_count;
u64 v6_to_v4_udp_non_translatable_drop_count;
u64 v6_to_v4_udp_no_db_drop_count;
u64 v6_to_v4_udp_output_count;
u64 v6_to_v4_udp_checksum_zero_count;
} nat64_v6_to_v4_udp_counter_t;
typedef struct {
u64 v4_to_v6_udp_input_count;
u64 v4_to_v6_udp_no_db_drop_count;
u64 v4_to_v6_udp_filter_drop_count;
u64 v4_to_v6_udp_output_count;
u64 v4_to_v6_udp_crc_zero_drop_count;
u64 v4_to_v6_udp_frag_crc_zero_drop_count;
u64 v4_to_v6_udp_crc_zero_recycle_sent_count;
u64 v4_to_v6_udp_crc_zero_recycle_drop_count;
} nat64_v4_to_v6_udp_counter_t;
typedef struct {
u64 v6_to_v4_icmp_input_count;
u64 v6_to_v4_icmp_no_db_drop_count;
u64 v6_to_v4_icmp_non_translatable_drop_count;
u64 v6_to_v4_icmp_qry_output_count;
} nat64_v6_to_v4_icmp_counter_t;
typedef struct {
u64 v4_to_v6_icmp_input_count;
u64 v4_to_v6_icmp_no_db_drop_count;
u64 v4_to_v6_icmp_filter_drop;
u64 v4_to_v6_icmp_qry_output_count;
} nat64_v4_to_v6_icmp_counter_t;
typedef struct {
u64 v6_to_v4_icmp_error_input_count;
u64 v6_to_v4_icmp_error_no_db_drop_count;
u64 v6_to_v4_icmp_error_invalid_next_hdr_drop_count;
u64 v6_to_v4_icmp_error_non_translatable_drop_count;
u64 v6_to_v4_icmp_error_unsupported_type_drop_count;
u64 v6_to_v4_icmp_error_output_count;
} nat64_v6_to_v4_icmp_error_counter_t;
typedef struct {
u64 v4_to_v6_icmp_error_input_count;
u64 v4_to_v6_icmp_error_no_db_drop_count;
u64 v4_to_v6_icmp_error_unsupported_type_drop_count;
u64 v4_to_v6_icmp_error_unsupported_protocol_drop_count;
u64 v4_to_v6_icmp_error_output_count;
} nat64_v4_to_v6_icmp_error_counter_t;
typedef struct {
u64 nat64_v4_frag_input_count;
u64 nat64_v4_frag_forward_count;
u64 nat64_v4_frag_drop_count;
u64 nat64_v4_frag_throttled_count;
u64 nat64_v4_frag_timeout_drop_count;
u64 nat64_v4_frag_tcp_input_count;
u64 nat64_v4_frag_udp_input_count;
u64 nat64_v4_frag_icmp_input_count;
u64 nat64_v6_frag_input_count;
u64 nat64_v6_frag_forward_count;
u64 nat64_v6_frag_drop_count;
u64 nat64_v6_frag_throttled_count;
u64 nat64_v6_frag_timeout_drop_count;
u64 nat64_v6_frag_tcp_input_count;
u64 nat64_v6_frag_udp_input_count;
u64 nat64_v6_frag_icmp_input_count;
u64 nat64_v6_frag_invalid_input_count;
} nat64_frag_counter_t;
typedef struct {
u64 v6_to_v4_options_input_count;
u64 v6_to_v4_options_drop_count;
u64 v6_to_v4_options_forward_count;
u64 v6_to_v4_options_no_db_drop_count;
u64 v6_to_v4_unsupp_proto_count;
u64 v4_to_v6_options_input_count;
u64 v4_to_v6_options_drop_count;
u64 v4_to_v6_options_forward_count;
u64 v4_to_v6_options_no_db_drop_count;
u64 v4_to_v6_unsupp_proto_count;
} nat64_options_counter_t;
typedef struct {
u64 v4_icmp_gen_count;
u64 v6_icmp_gen_count;
} nat64_icmp_gen_counter_t;
typedef struct{
u32 nat64_num_translations;
u32 nat64_num_dynamic_translations;
u32 nat64_num_static_translations;
u32 nat64_sessions;
u64 nat64_port_limit_exceeded;
u64 nat64_system_limit_reached;
u64 nat64_resource_depletion_drops;
u64 nat64_no_translation_entry_drops;
u64 nat64_filtering_drops ;
u64 nat64_invalid_ipv6_prefix_drops;
u32 num_subscribers;
u32 dummy;
u64 drops_sessiondb_limit_exceeded;
} nat64_inst_gen_counter_t;
typedef struct {
nat64_v6_to_v4_tcp_counter_t v64_tcp_counters;
nat64_v4_to_v6_tcp_counter_t v46_tcp_counters;
nat64_v6_to_v4_udp_counter_t v64_udp_counters;
nat64_v4_to_v6_udp_counter_t v46_udp_counters;
nat64_v6_to_v4_icmp_counter_t v64_icmp_counters;
nat64_v4_to_v6_icmp_counter_t v46_icmp_counters;
nat64_v6_to_v4_icmp_error_counter_t v64_icmp_error_counters;
nat64_v4_to_v6_icmp_error_counter_t v46_icmp_error_counters;
nat64_frag_counter_t nat64_frag_counters;
nat64_options_counter_t nat64_options_counters;
nat64_icmp_gen_counter_t nat64_icmp_gen_counters;
} nat64_counters_t;
/*
* nat64_portmap_v2_t
* This structure stores information about the IP address and ports
* available for NAT for this nat64 instance.
*/
typedef struct {
u32 delete_time;
u32 last_sent_timestamp;
u32 inuse;
u32 ipv4_address; /* native bit order */
uword bm[(BITS_PER_INST + BITS(uword)-1)/BITS(uword)];
} nat64_portmap_t;
/*
* nat64_v4_db_key_t
* This structure gives information about the v4 transport address
* (ipv4, port, protocol)
*/
typedef struct {
u32 ipv4;
u16 port;
u16 vrf; //bit0-12:inst_id, bit13:unused, bit14-15:protocol
} nat64_v4_db_key_t;
/* Union will be easier while compare/hash */
typedef union {
nat64_v4_db_key_t k;
u64 key64;
} nat64_v4_key_t;
/*
* nat64_v6_db_key_t
* This structure gives information about the v6 transport address
* (ipv6, port, protocol)
*/
typedef struct {
u32 ipv6[4];
u16 port;
u16 vrf; //bit0-12:inst_id, bit13:unused, bit14-15:protocol
} nat64_v6_key_t;
typedef struct {
u16 udp_timeout;
u16 tcp_trans_timeout;
u16 tcp_est_timeout;
u16 tcp_v4_init_timeout;
u16 frag_timeout;
u16 icmp_timeout;
} nat64_timeout_info_t;
#define NAT64_UDP_DEF 300 /* 5min */
#define NAT64_TCP_TRANS_DEF 240 /* 4min */
#define NAT64_TCP_EST_DEF 7200 /* 2Hrs */
#define NAT64_TCP_V4_DEF 6 /* 6 sec */
#define NAT64_FRAG_DEF 2 /* 2 sec */
#define NAT64_ICMP_DEF 60 /* 60 sec */
/*
* nat64_table_entry_t
* This structure is used to store information regarding every nat64 instance.
*/
/* structure will hold the L4 information, of a particular frag stream set
* src_port - holds the original src port
* dst_port - holds the original dst port
* total_len - useful only in ICMP nodes
* cnat_port - vlaue used for looksups
* next_prot - Protocol after translation */
typedef struct l4_frag_info {
u16 next_node_idx;
u16 src_port;
u16 dst_port;
u16 total_length;
u8 protocol;
u16 cnat_prot;
u16 next_prot;
} l4_frag_info_t;
typedef struct {
u16 state;
u16 nat64_id; /* nat64_id value for this table entry - for easy access */
u16 v4_uidb_index; /* V4 uidb index */
u16 v6_uidb_index; /* V6 uidb index */
u8 octet0_position;
u8 octet1_position;
u8 octet2_position;
u8 octet3_position;
u16 v4_to_v6_tcp_mss; /* TCP MSS */
u16 v6_to_v4_tcp_mss; /* TCP MSS */
/*
* V6 NAT64 prefix value and mask size
*/
u32 v6_prefix[4];
u32 v6_prefix_mask[4];
u8 v6_prefix_mask_len;
u8 ubits_reserved_on;
#define IPV4_TOS_OVERRIDE_FLAG 0x1
#define IPV6_TOS_OVERRIDE_FLAG 0x2
#define NAT64_STFUL_RTSP_ALG_ENABLE 0x4
u8 feature_flags;
u8 ipv4_tos_value;
u8 ipv6_tos_value;
u8 df_bit_clear;
u8 ipv6_mtu_set;
u8 filtering_policy;
#define NAT64_ADDRESS_DEPENDENT_ENABLE 1
u8 tcp_policy;
#define NAT64_TCP_SECURITY_FLAG_DISABLE 1
u8 ftp_flags;
u8 tcp_v4_init_enable;
#define NAT64_TCP_V4_INIT_ENABLE 1
u8 logging_policy;
#define NAT64_BIB_LOG_ENABLE 0 /* Default */
#define NAT64_SESSION_LOG_ENABLE 1
#define NAT64_BIDIR_REFRESH 1 /* 1 - timer refresh in both direction */
#define NAT64_UNIDIR_REFRESH 0 /* 0 - default (only v6 side refresh timer)*/
u8 nat64_refresh_both_direction; /* 0 - default (only v6 side refresh timer) */
#define NAT64_BIDIR_REFRESH 1 /* 1 - timer refresh in both direction */
u8 udp_zero_checksum; /* 0 - default (calc checksum) */
#define NAT64_UDP_ZERO_CHECKSUM_DROP 1 /* 1 -drop */
u16 port_limit;
cnat_portmap_v2_t *port_map;
u32 logging_index;
nat64_timeout_info_t timeout_info;
/*
* These fields are not used much, let us keep it in the end
*/
u32 v4_vrf_id; /* V4 vrf id */
u32 v6_vrf_id; /* V6 vrf id */
u32 v4_if_num; /* V4 SVI ifnum */
u32 v6_if_num; /* V6 SVI ifnum */
u16 dyn_start_port;
u16 pcp_server_port;
u32 pcp_server_addr[4];
u32 rseed_ip;
#define NAT64_FRAG_ENABLE 1
#define NAT64_FRAG_DISABLE 0
u8 frag_state;
u8 nat64_enable; /* Enable/Disable this instance. */
u16 rtsp_port;
} nat64_table_entry_t;
extern nat64_table_entry_t nat64_table_array[NAT64_MAX_NAT64_ENTRIES];
extern nat64_table_entry_t *nat64_table_ptr;
extern nat64_counters_t nat64_all_counters[NAT64_MAX_NAT64_ENTRIES];
extern nat64_inst_gen_counter_t nat64_inst_gen_counters[NAT64_MAX_NAT64_ENTRIES];
typedef struct nat64_common_pipeline_data_ {
#ifdef TOBE_PORTED
spp_node_main_vector_t *nmv;
#endif
u16 *nat64_id_ptr;
nat64_table_entry_t *nat64_entry_ptr;
} nat64_common_pipeline_data_t;
typedef struct nat64_v6_to_v4_pipeline_data_ {
nat64_common_pipeline_data_t common_data;
u32 bib_bucket;
u32 session_bucket;
nat64_v6_key_t v6_in_key;
nat64_v6_key_t v6_dest_key;
/*
* IPv6 Data, everthing in host order except for the addr fields
*/
u32 version_trafficclass_flowlabel;
u16 payload_length;
u8 next_header;
u8 hop_limit;
/*
* These Address fields are in Network Order, so that
* it is easy to extract the IPv4 address from them
*/
u32 ipv6_src[4];
u32 ipv6_dst[4];
u8 frag_next_header;
u8 frag_reserved;
u16 frag_offset_res_m;
u32 frag_identification;
ipv4_header *ipv4_header;
union {
struct _v4_l4_info {
u8 *ipv4_l4_header;
u8 pad0;
u8 pad1;
u8 pad2;
u8 pad3;
} v4_l4_info;
struct _v4_icmp_info {
icmp_v4_t *ipv4_icmp_header;
u8 old_icmp_type;
u8 new_icmp_type;
u8 old_icmp_code;
u8 new_icmp_code;
u16 checksum;
u16 old_iden; // length (ICMP extn), ptr (param)
u16 new_iden; // ----- do -------------
u16 old_seq; // MTU for PTB case
u16 new_seq; // ----- do -------------
} v4_icmp_info;
struct _v4_udp_info {
udp_hdr_type_t *ipv4_udp_header;
u8 pad0;
u8 pad1;
u8 pad2;
u8 pad3;
} v4_udp_info;
struct _v4_tcp_info {
tcp_hdr_type *ipv4_tcp_header;
u16 old_src_port;
u16 new_src_port;
u16 dest_port;
nat64_tcp_events tcp_event;
} v4_tcp_info;
} l4_u;
l4_frag_info_t *frag_info; /* port for tcp/udp, ident - icmp */
/* Counters will be added here */
union {
nat64_v6_to_v4_tcp_counter_t *tcp_counter;
nat64_v6_to_v4_udp_counter_t *udp_counter;
nat64_v6_to_v4_icmp_counter_t *icmp_counter;
nat64_v6_to_v4_icmp_error_counter_t *icmp_error_counter;
nat64_frag_counter_t *frag_counter;
nat64_options_counter_t *options_counter;
} nat64_ctr_u;
nat64_icmp_gen_counter_t *icmp_gen_counter;
} nat64_v6_to_v4_pipeline_data_t;
typedef struct nat64_v4_to_v6_pipeline_data_ {
nat64_common_pipeline_data_t common_data;
u32 bib_bucket;
u32 session_bucket;
nat64_v4_key_t v4_src_key; /* Will be translated using Prefix */
nat64_v4_key_t v4_dest_key; /* will be the out key for NAT64 */
/*
* IPv4 data
*/
u8 version_hdr_len_words;
u8 tos;
u16 total_len_bytes;
u16 identification;
u16 frag_flags_offset;
u8 ttl;
u8 protocol;
u16 l4_checksum;
u32 ipv4_src_addr;
u32 ipv4_dst_addr;
/*
* Pointers to IPv6 headers
*/
ipv6_header_t *ipv6_header;
ipv6_frag_header_t *ipv6_frag_header;
union {
struct _v6_l4_info {
u8 *ipv6_l4_header;
u8 pad0;
u8 pad1;
u8 pad2;
u8 pad3;
} v6_l4_info;
struct _v6_icmp_info {
icmp_v6_t *ipv6_icmp_header;
u8 old_icmp_type;
u8 new_icmp_type;
u8 old_icmp_code;
u8 new_icmp_code;
u16 old_iden; // length (ICMP extn), ptr (param)
u16 new_iden; // ----- do -------------
u16 old_seq; // MTU for PTB case
u16 new_seq; // ----- do -------------
} v6_icmp_info;
struct _v6_udp_info {
udp_hdr_type_t *ipv6_udp_header;
u8 pad0;
u8 pad1;
u8 pad2;
u8 pad3;
} v6_udp_info;
struct _v6_tcp_info {
tcp_hdr_type *ipv6_tcp_header;
u16 old_dest_port;
u16 new_dest_port;
u16 src_port;
nat64_tcp_events tcp_event;
} v6_tcp_info;
} l4_u;
l4_frag_info_t *frag_info; /* port for tcp/udp, ident - icmp */
/* Need to add counters here */
union {
nat64_v4_to_v6_tcp_counter_t *tcp_counter;
nat64_v4_to_v6_udp_counter_t *udp_counter;
nat64_v4_to_v6_icmp_counter_t *icmp_counter;
nat64_v4_to_v6_icmp_error_counter_t *icmp_error_counter;
nat64_frag_counter_t *frag_counter;
nat64_options_counter_t *options_counter;
} nat64_ctr_u;
nat64_icmp_gen_counter_t *icmp_gen_counter;
} nat64_v4_to_v6_pipeline_data_t;
#endif
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