nat: ipfix logging separation & refactor

Type: refactor

Change-Id: I8785e4987e4f60361072440d0c3c6954c9c12394
Signed-off-by: Filip Varga <fivarga@cisco.com>

1 files changed, 146 insertions, 0 deletions

diff --git a/src/plugins/nat/lib/ipfix_logging.h b/src/plugins/nat/lib/ipfix_logging.h
new file mode 100644
index 00000000000..b37c8567c8e
--- /dev/null
+++ b/src/plugins/nat/lib/ipfix_logging.h
@@ -0,0 +1,146 @@
+/*
+ * ipfix_logging.h - NAT Events IPFIX logging
+ *
+ * Copyright (c) 2016 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 __included_nat_lib_ipfix_logging_h__
+#define __included_nat_lib_ipfix_logging_h__
+
+#include <vlib/buffer.h>
+#include <vlib/node.h>
+
+#include <nat/lib/lib.h>
+
+typedef enum {
+  NAT_ADDRESSES_EXHAUTED = 3,
+  NAT44_SESSION_CREATE = 4,
+  NAT44_SESSION_DELETE = 5,
+  NAT64_SESSION_CREATE = 6,
+  NAT64_SESSION_DELETE = 7,
+  NAT64_BIB_CREATE = 10,
+  NAT64_BIB_DELETE = 11,
+  NAT_PORTS_EXHAUSTED = 12,
+  QUOTA_EXCEEDED = 13,
+} nat_event_t;
+
+typedef enum {
+  MAX_SESSION_ENTRIES = 1,
+  MAX_BIB_ENTRIES = 2,
+  MAX_ENTRIES_PER_USER = 3,
+} quota_exceed_event_t;
+
+typedef struct {
+
+  /** ipfix buffers under construction */
+  vlib_buffer_t *nat44_session_buffer;
+  vlib_buffer_t *addr_exhausted_buffer;
+  vlib_buffer_t *max_entries_per_user_buffer;
+  vlib_buffer_t *max_sessions_buffer;
+  vlib_buffer_t *max_bibs_buffer;
+  vlib_buffer_t *max_frags_ip4_buffer;
+  vlib_buffer_t *max_frags_ip6_buffer;
+  vlib_buffer_t *nat64_bib_buffer;
+  vlib_buffer_t *nat64_ses_buffer;
+
+  /** frames containing ipfix buffers */
+  vlib_frame_t *nat44_session_frame;
+  vlib_frame_t *addr_exhausted_frame;
+  vlib_frame_t *max_entries_per_user_frame;
+  vlib_frame_t *max_sessions_frame;
+  vlib_frame_t *max_bibs_frame;
+  vlib_frame_t *max_frags_ip4_frame;
+  vlib_frame_t *max_frags_ip6_frame;
+  vlib_frame_t *nat64_bib_frame;
+  vlib_frame_t *nat64_ses_frame;
+
+  /** next record offset */
+  u32 nat44_session_next_record_offset;
+  u32 addr_exhausted_next_record_offset;
+  u32 max_entries_per_user_next_record_offset;
+  u32 max_sessions_next_record_offset;
+  u32 max_bibs_next_record_offset;
+  u32 max_frags_ip4_next_record_offset;
+  u32 max_frags_ip6_next_record_offset;
+  u32 nat64_bib_next_record_offset;
+  u32 nat64_ses_next_record_offset;
+
+} nat_ipfix_per_thread_data_t;
+
+typedef struct {
+  /** NAT plugin IPFIX logging enabled */
+  u8 enabled;
+
+  /** Time reference pair */
+  u64 milisecond_time_0;
+  f64 vlib_time_0;
+
+  /* Per thread data */
+  nat_ipfix_per_thread_data_t *per_thread_data;
+
+  /** template IDs */
+  u16 nat44_session_template_id;
+  u16 addr_exhausted_template_id;
+  u16 max_entries_per_user_template_id;
+  u16 max_sessions_template_id;
+  u16 max_bibs_template_id;
+  u16 max_frags_ip4_template_id;
+  u16 max_frags_ip6_template_id;
+  u16 nat64_bib_template_id;
+  u16 nat64_ses_template_id;
+
+  /** stream index */
+  u32 stream_index;
+
+  /** vector of worker vlib mains */
+  vlib_main_t **worker_vms;
+
+  /** nat data callbacks call counter */
+  u16 call_counter;
+
+} nat_ipfix_logging_main_t;
+
+extern nat_ipfix_logging_main_t nat_ipfix_logging_main;
+
+void nat_ipfix_logging_init (vlib_main_t * vm);
+int nat_ipfix_logging_enable_disable (int enable, u32 domain_id, u16 src_port);
+void nat_ipfix_logging_nat44_ses_create (u32 thread_index, u32 src_ip,
+                                          u32 nat_src_ip,
+                                          nat_protocol_t nat_proto,
+                                          u16 src_port, u16 nat_src_port,
+                                          u32 vrf_id);
+void nat_ipfix_logging_nat44_ses_delete (u32 thread_index, u32 src_ip,
+                                          u32 nat_src_ip,
+                                          nat_protocol_t nat_proto,
+                                          u16 src_port, u16 nat_src_port,
+                                          u32 vrf_id);
+void nat_ipfix_logging_addresses_exhausted(u32 thread_index, u32 pool_id);
+void nat_ipfix_logging_max_entries_per_user(u32 thread_index,
+                                             u32 limit, u32 src_ip);
+void nat_ipfix_logging_max_sessions(u32 thread_index, u32 limit);
+void nat_ipfix_logging_max_bibs(u32 thread_index, u32 limit);
+void nat_ipfix_logging_nat64_session(u32 thread_index,
+                                     ip6_address_t * src_ip,
+                                     ip4_address_t * nat_src_ip, u8 proto,
+                                     u16 src_port, u16 nat_src_port,
+                                     ip6_address_t * dst_ip,
+                                     ip4_address_t * nat_dst_ip,
+                                     u16 dst_port, u16 nat_dst_port,
+                                     u32 vrf_id, u8 is_create);
+void nat_ipfix_logging_nat64_bib(u32 thread_index,
+                                 ip6_address_t * src_ip,
+                                 ip4_address_t * nat_src_ip, u8 proto,
+                                 u16 src_port, u16 nat_src_port,
+                                 u32 vrf_id, u8 is_create);
+
+#endif /* __included_nat_lib_ipfix_logging_h__ */