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>

1 files changed, 398 insertions, 0 deletions

diff --git a/plugins/vcgn-plugin/vcgn/cnat_pcp_server.h b/plugins/vcgn-plugin/vcgn/cnat_pcp_server.h
new file mode 100644
index 00000000000..c77c6a875f8
--- /dev/null
+++ b/plugins/vcgn-plugin/vcgn/cnat_pcp_server.h
@@ -0,0 +1,398 @@
+/*
+ *------------------------------------------------------------------
+ * 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__ */