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/*
*------------------------------------------------------------------
* dslite_db.h - Stateful DSLITE translation database definitions
*
* Copyright (c) 2010-2013 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 __DSLITE_DB_H__
#define __DSLITE_DB_H__
#include "cnat_cli.h"
#include "index_list.h"
#include "cnat_ports.h"
#include "cnat_db.h"
#include "dslite_defs.h"
#define DSLITE_PRINTF(level, ...) \
if (dslite_debug_level > level) PLATFORM_DEBUG_PRINT(__VA_ARGS__);
/*
#define DSLITE_PRINTF(lvl, ...) \
{ \
avsm_dispatlib_debug (__VA_ARGS__); \
}
*/
#define HASH_ENHANCE 4
//#define DSLITE_DEF
#define DSLITE_MAIN_DB_SIZE (20000000 / PLATFORM_CNAT_INSTS)
#define DSLITE_MAIN_HASH_SIZE \
(HASH_ENHANCE * PLATFORM_CNAT_MAIN_PRELIM_HASH_SIZE)
#define DSLITE_MAIN_HASH_MASK (DSLITE_MAIN_HASH_SIZE-1)
/* nb: 200000 users / 64 CNAT = 3125, 76% occupancy */
#define DSLITE_USER_HASH_SIZE CNAT_USER_HASH_SIZE
#define DSLITE_USER_HASH_MASK (DSLITE_USER_HASH_SIZE-1)
/* No. of per ip/port config will be limited to 1000 */
#define DSLITE_TIMEOUT_HASH_SIZE 1000
#define DSLITE_TIMEOUT_HASH_MASK (DSLITE_TIMEOUT_HASH_SIZE - 1)
#define DSLITE_TIMEOUT_FULL_MASK 0xFFFFFFFFFFFFFFFF
#define CNAT_MAX_SESSIONS_PER_BIB 0xFFFF
#define FORCE_DEL 1 /* Delete static BIB entries as well */
/* default timeout values */
#define DSLITE_UDP_DEFAULT 300 /* 5 min */
#define DSLITE_UDP_MIN 120 /* 2 min */
#define DSLITE_TCP_TRANS 240 /* 4 min */
#define DSLITE_TCP_EST 7200 /* 2 hrs */
#define DSLITE_TCP_V4_SYN 6 /* 6 sec */
#define DSLITE_FRAG_MIN 2 /* 2 sec */
#define DSLITE_ICMP_DEFAULT 60 /* 1 min */
extern u32 dslite_translation_create_count;
extern u32 dslite_translation_delete_count;
extern u32 dslite_translation_create_rate;
extern u32 dslite_translation_delete_rate;
extern u32 dslite_in2out_forwarding_count;
extern u32 dslite_in2out_forwarding_rate;
extern u32 dslite_out2in_forwarding_count;
extern u32 dslite_out2in_forwarding_rate;
#define DSLITE_V6_GET_HASH(in_key, hash, mask) \
a = in_key->ipv6[0] ^ in_key->ipv6[1] ^ in_key->ipv6[2] ^ in_key->ipv6[3] \
^ in_key->ipv4_key.k.ipv4 ^ ((in_key->ipv4_key.k.port << 16) | in_key->ipv4_key.k.vrf); \
DSLITE_PRINTF(1, "%x:%x:%x:%x:%x:%x:%x\n", in_key->ipv6[0], in_key->ipv6[1], in_key->ipv6[2], in_key->ipv6[3], \
in_key->ipv4_key.k.ipv4, in_key->ipv4_key.k.port, in_key->ipv4_key.k.vrf); \
b = c = 0x9e3779b9;\
/* Jenkins hash, arbitrarily use c as the "answer" */ \
hash_mix32(a, b, c); \
hash = c & mask; \
#define DSLITE_V6_GET_USER_HASH(ipv6, hash, mask) \
a = ipv6[0] ^ ipv6[1] ^ ipv6[2] ^ ipv6[3]; \
b = c = 0x9e3779b9;\
/* Jenkins hash, arbitrarily use c as the "answer" */ \
hash_mix32(a, b, c); \
hash = c & mask; \
#define DSLITE_V4_GET_HASH(in_key, hash, mask) \
a = in_key.ipv4 ^ ((in_key.port << 16) | in_key.vrf); \
b = c = 0x9e3779b9; \
/* Jenkins hash, arbitrarily use c as the "answer" */ \
hash_mix32(a, b, c); \
hash = c & mask;
#define PRIVATE_V4_ADDR_CHECK(addr, invalid) \
invalid = 0; \
int range1 = ((addr & 0xFF000000) >> 24); \
int range2 = ((addr & 0xFFF00000) >> 20); \
int range3 = ((addr & 0xFFFF0000) >> 16); \
int range4 = ((addr & 0xFFFFFFF8) >> 3); \
if(range1 != 0xa && range2 != 0xac1 && range3 != 0xc0a8 && range4 != 0x18000000) \
invalid = 1;
#define V4_MAPPED_V6_CHECK(v6_addr, invalid) \
invalid = 0; \
int word1 = v6_addr[0]; \
int word2 = v6_addr[1]; \
int word3 = v6_addr[2]; \
if(!((word1 == 0) && (word2 == 0) && (word3 == 0x0000FFFF))) \
invalid = 1;
extern dslite_table_entry_t dslite_table_array[DSLITE_MAX_DSLITE_ENTRIES];
extern dslite_table_entry_t *dslite_table_ptr;
#define DSLITE_CMP_V6_KEY(key1, key2) \
memcmp(key1, key2, sizeof(dslite_v6_key_t))
#define DSLITE_CMP_V4_KEY(key1, key2) \
memcmp(key1, key2, sizeof(dslite_v4_key_t))
#define DSLITE_CMP_V6_IP(ip1, ip2) \
memcmp(ip1, ip2, (sizeof(u32) * 4))
#define DSLITE_CMP_V6_KEY1(key1, key2) \
(key1.ipv6[0] == key2.ipv6[0]) && (key1.ipv6[1] == key2.ipv6[1]) && \
(key1.ipv6[2] == key2.ipv6[2]) && (key1.ipv6[3] == key2.ipv6[3]) && \
(key1.port == key2.port) && (key1.vrf == key2.vrf)
#define DSLITE_CMP_V6_IP1(ip1, ip2) \
((ip1[0] == ip2[0]) && (ip1[1] == ip2[1]) && \
(ip1[2] == ip2[2]) && (ip1[3] == ip2[3]))
#define DSLITE_CMP_V4_KEY1(key1, key2) \
(key1.key64 == key2.key64)
cnat_main_db_entry_t*
dslite_get_main_db_entry_v2(dslite_db_key_bucket_t *ki,
port_pair_t port_pair_type,
port_type_t port_type,
cnat_gen_icmp_info *info,
dslite_table_entry_t *dslite_entry_ptr,
cnat_key_t *dest_info);
cnat_main_db_entry_t*
dslite_main_db_lookup_entry(dslite_db_key_bucket_t *ki);
cnat_user_db_entry_t*
dslite_user_db_lookup_entry(dslite_db_key_bucket_t *uki);
cnat_user_db_entry_t*
dslite_user_db_create_entry(dslite_db_key_bucket_t *uki, u32 portmap_index);
cnat_main_db_entry_t*
dslite_create_main_db_entry_and_hash(dslite_db_key_bucket_t *ki,
cnat_db_key_bucket_t *ko,
cnat_user_db_entry_t *udb);
#endif
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