diff options
Diffstat (limited to 'plugins/vcgn-plugin/vcgn/cnat_pcp_server.h')
| -rw-r--r-- | plugins/vcgn-plugin/vcgn/cnat_pcp_server.h | 398 |
1 files changed, 0 insertions, 398 deletions
diff --git a/plugins/vcgn-plugin/vcgn/cnat_pcp_server.h b/plugins/vcgn-plugin/vcgn/cnat_pcp_server.h deleted file mode 100644 index c77c6a87..00000000 --- a/plugins/vcgn-plugin/vcgn/cnat_pcp_server.h +++ /dev/null @@ -1,398 +0,0 @@ -/* - *------------------------------------------------------------------ - * cnat_pcp_server.h - * - * Copyright (c) 2009-2012 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 __CNAT_PCP_SERVER_H__ -#define __CNAT_PCP_SERVER_H__ - -#include "dslite_defs.h" - -/* Debug utils of PCP */ -#define PCP_DBG(debug, ...) \ - if(PREDICT_FALSE(cnat_pcp_debug_flag >= debug)) { \ - printf("%s:%s:%d - ", \ - __FILE__, __FUNCTION__, __LINE__);\ - printf(__VA_ARGS__);\ - printf("\n"); \ - } - -#define PCP_DUMP_PDATA \ - if(PREDICT_FALSE(cnat_pcp_debug_flag >= 100)) { \ - printf("%s:%s:%d - \n", \ - __FILE__, __FUNCTION__, __LINE__);\ - printf("src - ip = %X, proto = %d, port = %d i_vrf = %d, o_vrf = %d\n", \ - pcp_data.src_ip[3], pcp_data.proto, pcp_data.src_port, pcp_data.i_vrf, pcp_data.o_vrf); \ - printf(" third party ip = %X\n", pcp_data.third_party_ip[3]); \ - printf("map - ip = %X, port = %d \n", \ - pcp_data.ext_ip[3], pcp_data.ext_port);\ - printf("remote - ip = %X, port = %d \n", \ - pcp_data.peer_ip[3], pcp_data.peer_port); \ - printf("req life time = %d \n", pcp_data.req_lifetime); \ - printf("drop = %d \n", pcp_data.drop);\ - printf("udp_len = %d \n", pcp_data.udp_len); \ - printf("pm = %p \n", pcp_data.pm); \ - printf("cnat_proto = %X \n", pcp_data.cnat_proto); \ - printf("inst_id = %X \n", pcp_data.inst_id); \ - printf("======================================================\n"); \ - } - -#define PCP_DUMP_PACKET(ip, len) pcp_hex_dump(ip, len) - -#ifdef TOBE_PORTED -#define PCP_INCR(counter) pcp_counters.pcp_##counter++ ; -#else -#define PCP_INCR(counter) -#endif - -typedef struct pcp_debug_counters { - u64 pcp_input; - u64 pcp_output; - u64 pcp_service_nat44; - u64 pcp_service_dslite; - /* below all are drops */ - u64 pcp_drops; - u64 pcp_i2o_key_inuse; - u64 pcp_throttle_drops; - u64 pcp_udp_len; - u64 pcp_nrequest; - u64 pcp_min_udp_len; - u64 pcp_max_udp_len; - u64 pcp_mod4_len; - u64 pcp_invalid_3rd_len; - u64 pcp_invalid_option; - u64 pcp_version; - u64 pcp_invalid_opcode; - u64 pcp_invalid_client_ip; - u64 pcp_invalid_proto; - u64 pcp_invalid_port; - u64 pcp_invalid_vrfmap; - u64 pcp_invalid_ext_addr; - u64 pcp_out_addr_inuse; - u64 pcp_exact_match; - u64 pcp_exact_entry_created; - u64 pcp_exact_db_alloc_failed; - u64 pcp_udb_mismatch; - u64 pcp_noexact_db_allocated; - u64 pcp_static_entry_present; - u64 pcp_entry_deleted; - u64 pcp_3rd_party_option; - - /* map counters */ - u64 pcp_map_input; - u64 pcp_map_min_len; - u64 pcp_map_max_len; - u64 pcp_map_invalid_option; - u64 pcp_map_invalid_option_len; - u64 pcp_map_pref_fail_option; - u64 pcp_map_invalid_delete_req; - u64 pcp_map_delete_req; - u64 pcp_map_create_req; - u64 pcp_map_refresh; - - /* peer counters */ - u64 pcp_peer_input; - u64 pcp_peer_invalid_len; - u64 pcp_peer_delete_req; - u64 pcp_peer_create_req; - u64 pcp_peer_addr_mistmatch; - u64 pcp_peer_refresh; - -} pcp_debug_counters_t; - -typedef struct { - u16 msg_id; - u8 rc; - u8 pad[5]; - - /* better to have a group structures rather than individual - variables, any change in counters is will automatically - reflect here */ - pcp_debug_counters_t counters; -} pcp_show_counters_resp_t ; - - - -/* PCP opcodes */ -typedef enum pcp_opcode { - PCP_OPCODE_MAP = 1, - PCP_OPCODE_PEER = 2 -}pcp_opcode_t; - - -/* PCP opcodes */ -typedef enum pcp_options { - PCP_OPTION_3RD_PARTY = 1, - PCP_OPTION_PREF_FAIL = 2, - PCP_OPTION_FILTER = 3 -} pcp_options_t; - -/* PCP Result codes */ -typedef enum pcp_result_codes { - PCP_SUCCESS = 0, - PCP_ERR_UNSUPP_VERSION = 1, - PCP_ERR_NOT_AUTHORIZED = 2, - PCP_ERR_MALFORMED_REQUEST = 3, - PCP_ERR_UNSUPP_OPCODE = 4, - PCP_ERR_UNSUPP_OPTION = 5, - PCP_ERR_MALFORMED_OPTION = 6, - PCP_ERR_NETWORK_FAILURE = 7, - PCP_ERR_NO_RESOURCES = 8, - PCP_ERR_UNSUPP_PROTOCOL = 9, - PCP_ERR_USER_EX_QUOTA = 10, - PCP_ERR_CANNOT_PROVIDE_EXTERNAL = 11, - PCP_ERR_ADDRESS_MISMATCH = 12, - PCP_ERR_EXCESSIVE_REMOTE_PEERS = 13 -} pcp_result_codes_t; - -#define PCP_DISABLED 0 -#define PCP_ENABLED 1 - -#define PCP_DROP 1 - -#define PCP_STATIC_LIFETIME 0xFFFFFFFF -#define PCP_MAX_LIFETIME 0x00015180 /* 24 hours = 86400 seconds*/ - -#define PCP_VERSION_SUPPORTED 1 - -#define PCP_NO_PREF_FAIL_OPTION 0 -#define PCP_PREF_FAIL_OPTION 1 - -#define CNAT_DEF_PCP_PORT 5351 - -#define PCP_REQ_RESP_BIT 0x80 -#define PCP_RESPONSE(r_opcode) (r_opcode & PCP_REQ_RESP_BIT) -#define PCP_REQUEST(r_opcode) !(PCP_RESPONSE(r_opcode)) - -#define PCP_REQ_OPCODE(r_opcode) (r_opcode & 0x7F) - -/* 24 bytes */ -#define PCP_COMMON_HDR_LEN sizeof(pcp_request_t) - -/* 8 bytes */ -#define UDP_HDR_LEN sizeof(udp_hdr_type_t) - -#define PCP_PREF_FAIL_OPTION_SIZE \ - sizeof(pcp_prefer_fail_option_t) - -#define PCP_3RD_PARTY_OPTION_SIZE \ - sizeof(pcp_3rd_party_option_t) - -#define PCP_MIN_LEN PCP_COMMON_HDR_LEN - -/* 24+8=32 bytes */ -#define PCP_MIN_UDP_LEN (PCP_MIN_LEN + UDP_HDR_LEN) - -#define PCP_MAX_LEN 1024 - -/* 1024+8 = 1032 bytes */ -#define PCP_MAX_UDP_LEN (PCP_MAX_LEN + UDP_HDR_LEN) - -/* 24+ 24 = 48 bytes */ -#define PCP_MAP_OPCODE_MIN_LEN (PCP_COMMON_HDR_LEN + \ - sizeof( pcp_map_option_specific_data_t)) - -/* 24 + 44 = 68 bytes */ -#define PCP_PEER_OPCODE_MIN_LEN (PCP_COMMON_HDR_LEN + \ - sizeof( pcp_peer_option_specific_data_t)) - -/* 48 + 8 = 56 bytes */ -#define PCP_MAP_OPCODE_MIN_UDP_LEN (PCP_MAP_OPCODE_MIN_LEN + \ - UDP_HDR_LEN ) - -#define PCP_GET_MAP_OPTION_OFFSET(req) \ - ((u8*)req + PCP_MAP_OPCODE_MIN_LEN) - -#define PCP_GET_PEER_OPTION_OFFSET(req) \ - ((u8*)req + PCP_PEER_OPCODE_MIN_LEN) - - -#define PCP_REQ_TOTAL_LEN(udp) (udp->udp_length - \ - UDP_HDR_LEN) -/* 56 + 4 = 60 bytes */ -#define PCP_MAP_OPCODE_PREF_FAIL_OPTION_LEN \ - (PCP_MAP_OPCODE_MIN_UDP_LEN + \ - sizeof(pcp_prefer_fail_option_t)) - - -/* 68 + 8 = 76 bytes */ -#define PCP_PEER_OPCODE_MIN_UDP_LEN (PCP_PEER_OPCODE_MIN_LEN + \ - UDP_HDR_LEN) - -#define PCP_MUST_OPTION(option_code) (option_code & 0x80) - - - -/* 56 + 20 = 76*/ -#define PCP_DSLITE_MAP_OPCODE_MIN_UDP_LEN \ - ( PCP_MAP_OPCODE_MIN_UDP_LEN + \ - PCP_3RD_PARTY_OPTION_SIZE) - -/* 60 + 20 = 80 */ -#define PCP_DSLITE_MAP_OPCODE_MAX_UDP_LEN \ - ( PCP_MAP_OPCODE_PREF_FAIL_OPTION_LEN + \ - PCP_3RD_PARTY_OPTION_SIZE) - -/* 76 + 20 = 96 */ -#define PCP_DSLITE_PEER_OPCODE_MIN_UDP_LEN \ - ( PCP_PEER_OPCODE_MIN_UDP_LEN + \ - PCP_3RD_PARTY_OPTION_SIZE) - - -#define PCP_SET_CNAT_PROTO(proto) \ - pcp_data.cnat_proto = (proto == TCP_PROT) ? CNAT_TCP: \ - (proto == UDP_PROT)? CNAT_UDP : CNAT_ICMP; - -#define PCP_SET_REQ_LIFETIME() \ - if(pcp_data.db->flags & CNAT_DB_FLAG_STATIC_PORT) { \ - pcp_data.db->proto_data.seq_pcp.pcp_lifetime = \ - PCP_STATIC_LIFETIME; \ - pcp_data.req_lifetime = PCP_STATIC_LIFETIME; \ - } else { \ - pcp_data.db->proto_data.seq_pcp.pcp_lifetime = \ - pcp_data.req_lifetime + cnat_current_time ; \ - } - - -/* per second not more than PCP_THROTTLE_LIMIT - * delete requests will be handled. - * this excludes , specific entries, in which - * only one entry needs to be deleted - */ -#define PCP_THROTTLE_LIMIT 2 - -typedef struct pcp_request { - u8 ver; - u8 r_opcode; - u16 reserved; - u32 req_lifetime; - u32 ip[4]; /* ipv4 will be represented - by the ipv4 mapped ipv6 */ -} pcp_request_t; - -typedef struct pcp_response { - u8 ver; - u8 r_opcode; - u8 reserved; - u8 result_code; - u32 lifetime; - u32 epochtime; - u32 reserved1[3]; -} pcp_response_t; - - -typedef struct pcp_options_hdr { - u8 code; - u8 reserved; - u16 len; - u8 data[0]; -} pcp_options_hdr_t; - - -/* same for both request and response */ -typedef struct pcp_map_option_specific_data { - u8 protocol; - u8 reserved[3]; - u16 int_port; - u16 ext_port; - u32 ext_ip[4]; /* ipv4 will be represnted - by the ipv4 mapped ipv6 */ -} pcp_map_option_specific_data_t; - -/* same for both request and response */ -typedef struct pcp_peer_option_specific_data { - u8 protocol; - u8 reserved[3]; - u16 int_port; - u16 ext_port; - u32 ext_ip[4]; /* ipv4 will be represented - by the ipv4 mapped ipv6 */ - u16 peer_port; - u16 reserved1; - u32 peer_ip[4]; -} pcp_peer_option_specific_data_t; - -typedef struct pcp_prefer_fail_option { - u8 option; - u8 reserved; - u16 len; -} pcp_prefer_fail_option_t; - - -typedef struct pcp_3rd_party_option{ - u8 option; - u8 reserved; - u16 len; - u32 ip[4]; -} pcp_3rd_party_option_t; - -/* structure used as pipeline data */ - -typedef struct pcp_pipeline_data { - - union { - - u8 *p; - ipv4_header *ip ; - ipv6_header_t *ipv6 ; - - } l3addr; - - udp_hdr_type_t *udp; - pcp_request_t *req; - pcp_response_t *resp; - pcp_opcode_t opcode; - u32 src_ip[4]; - u16 src_port; - u8 proto; - u16 i_vrf; - u16 o_vrf; - u32 ext_ip[4]; - u16 ext_port; - u32 third_party_ip[4]; - - /* valid for peer opcode */ - u32 peer_ip[4]; - u32 peer_port; - u32 req_lifetime; - u32 udp_len; - pcp_options_t pref_fail; - pcp_options_t third_party; - u8 *option_spec; - pcp_result_codes_t ret_code; - cnat_portmap_v2_t *pm; - cnat_main_db_entry_t *db; - cnat_vrfmap_t *vrfmap; - dslite_table_entry_t *inst_ptr; - u16 inst_id; - u32 flags; - u16 cnat_proto; - - /* is packet needs to be dropped ? */ - u8 drop; - /* nat44, dslite, nat64 */ -#define PCP_SERVICE_NAT44 1 -#define PCP_SERVICE_DSLITE 2 -#define PCP_SERVICE_NAT64 3 - u8 service_type; - -#define PCP_REQ_ENTRY_PRESENT 1 -#define PCP_REQ_EXT_MAP_PRESENT 1 - u8 state; -} pcp_pipeline_data_t; - -#endif /* __CNAT_PCP_sERVER_H__ */ |