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Diffstat (limited to 'plugins/vcgn-plugin/vcgn/dslite_db.h')
| -rw-r--r-- | plugins/vcgn-plugin/vcgn/dslite_db.h | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/plugins/vcgn-plugin/vcgn/dslite_db.h b/plugins/vcgn-plugin/vcgn/dslite_db.h new file mode 100644 index 00000000000..2269b98c989 --- /dev/null +++ b/plugins/vcgn-plugin/vcgn/dslite_db.h @@ -0,0 +1,170 @@ +/* + *------------------------------------------------------------------ + * 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 |