From 2ba92e32e0197f676dd905e5edcb4ff3e1bec241 Mon Sep 17 00:00:00 2001 From: Matus Fabian Date: Mon, 21 Aug 2017 07:05:03 -0700 Subject: NAT: Rename snat plugin to nat (VPP-955) Change-Id: I30a7e3da7a4efc6038a91e27b48045d4b07e2764 Signed-off-by: Matus Fabian --- src/plugins/snat/snat_ipfix_logging.c | 835 ---------------------------------- 1 file changed, 835 deletions(-) delete mode 100644 src/plugins/snat/snat_ipfix_logging.c (limited to 'src/plugins/snat/snat_ipfix_logging.c') diff --git a/src/plugins/snat/snat_ipfix_logging.c b/src/plugins/snat/snat_ipfix_logging.c deleted file mode 100644 index c68dc540d15..00000000000 --- a/src/plugins/snat/snat_ipfix_logging.c +++ /dev/null @@ -1,835 +0,0 @@ -/* - * snat_ipfix_logging.c - 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. - */ - -#include -#include -#include -#include - -snat_ipfix_logging_main_t snat_ipfix_logging_main; - -#define NAT44_SESSION_CREATE_LEN 26 -#define NAT_ADDRESSES_EXHAUTED_LEN 13 -#define MAX_ENTRIES_PER_USER_LEN 17 - -#define NAT44_SESSION_CREATE_FIELD_COUNT 8 -#define NAT_ADDRESSES_EXHAUTED_FIELD_COUNT 3 -#define MAX_ENTRIES_PER_USER_FIELD_COUNT 4 - -typedef struct { - u8 nat_event; - u32 src_ip; - u32 nat_src_ip; - snat_protocol_t snat_proto; - u16 src_port; - u16 nat_src_port; - u32 vrf_id; -} snat_ipfix_logging_nat44_ses_args_t; - -typedef struct { - u32 pool_id; -} snat_ipfix_logging_addr_exhausted_args_t; - -typedef struct { - u32 src_ip; -} snat_ipfix_logging_max_entries_per_user_args_t; - -/** - * @brief Create an IPFIX template packet rewrite string - * - * @param frm flow report main - * @param fr flow report - * @param collector_address collector address - * @param src_address source address - * @param collector_port collector - * @param event NAT event ID - * @param quota_event NAT quota exceeded event ID - * - * @returns template packet - */ -static inline u8 * -snat_template_rewrite (flow_report_main_t * frm, - flow_report_t * fr, - ip4_address_t * collector_address, - ip4_address_t * src_address, - u16 collector_port, - nat_event_t event, - quota_exceed_event_t quota_event) -{ - snat_ipfix_logging_main_t *silm = &snat_ipfix_logging_main; - ip4_header_t *ip; - udp_header_t *udp; - ipfix_message_header_t *h; - ipfix_set_header_t *s; - ipfix_template_header_t *t; - ipfix_field_specifier_t *f; - ipfix_field_specifier_t *first_field; - u8 *rewrite = 0; - ip4_ipfix_template_packet_t *tp; - u32 field_count = 0; - flow_report_stream_t *stream; - - stream = &frm->streams[fr->stream_index]; - silm->stream_index = fr->stream_index; - - if (event == NAT_ADDRESSES_EXHAUTED) - { - field_count = NAT_ADDRESSES_EXHAUTED_FIELD_COUNT; - silm->addr_exhausted_template_id = fr->template_id; - } - else if (event == NAT44_SESSION_CREATE) - { - field_count = NAT44_SESSION_CREATE_FIELD_COUNT; - silm->nat44_session_template_id = fr->template_id; - } - else if (event == QUOTA_EXCEEDED) - { - if (quota_event == MAX_ENTRIES_PER_USER) - { - field_count = MAX_ENTRIES_PER_USER_FIELD_COUNT; - silm->max_entries_per_user_template_id = fr->template_id; - } - } - - /* allocate rewrite space */ - vec_validate_aligned (rewrite, - sizeof (ip4_ipfix_template_packet_t) - + field_count * sizeof (ipfix_field_specifier_t) - 1, - CLIB_CACHE_LINE_BYTES); - - tp = (ip4_ipfix_template_packet_t *) rewrite; - ip = (ip4_header_t *) & tp->ip4; - udp = (udp_header_t *) (ip + 1); - h = (ipfix_message_header_t *) (udp + 1); - s = (ipfix_set_header_t *) (h + 1); - t = (ipfix_template_header_t *) (s + 1); - first_field = f = (ipfix_field_specifier_t *) (t + 1); - - ip->ip_version_and_header_length = 0x45; - ip->ttl = 254; - ip->protocol = IP_PROTOCOL_UDP; - ip->src_address.as_u32 = src_address->as_u32; - ip->dst_address.as_u32 = collector_address->as_u32; - udp->src_port = clib_host_to_net_u16 (stream->src_port); - udp->dst_port = clib_host_to_net_u16 (collector_port); - udp->length = clib_host_to_net_u16 (vec_len (rewrite) - sizeof (*ip)); - - /* FIXUP: message header export_time */ - h->domain_id = clib_host_to_net_u32 (stream->domain_id); - - /* Add TLVs to the template */ - if (event == NAT_ADDRESSES_EXHAUTED) - { - f->e_id_length = ipfix_e_id_length (0, observationTimeMilliseconds, 8); - f++; - f->e_id_length = ipfix_e_id_length (0, natEvent, 1); - f++; - f->e_id_length = ipfix_e_id_length (0, natPoolId, 4); - f++; - } - else if (event == NAT44_SESSION_CREATE) - { - f->e_id_length = ipfix_e_id_length (0, observationTimeMilliseconds, 8); - f++; - f->e_id_length = ipfix_e_id_length (0, natEvent, 1); - f++; - f->e_id_length = ipfix_e_id_length (0, sourceIPv4Address, 4); - f++; - f->e_id_length = ipfix_e_id_length (0, postNATSourceIPv4Address, 4); - f++; - f->e_id_length = ipfix_e_id_length (0, protocolIdentifier, 1); - f++; - f->e_id_length = ipfix_e_id_length (0, sourceTransportPort, 2); - f++; - f->e_id_length = ipfix_e_id_length (0, postNAPTSourceTransportPort, 2); - f++; - f->e_id_length = ipfix_e_id_length (0, ingressVRFID, 4); - f++; - } - else if (event == QUOTA_EXCEEDED) - { - if (quota_event == MAX_ENTRIES_PER_USER) - { - f->e_id_length = ipfix_e_id_length (0, observationTimeMilliseconds, - 8); - f++; - f->e_id_length = ipfix_e_id_length (0, natEvent, 1); - f++; - f->e_id_length = ipfix_e_id_length (0, natQuotaExceededEvent, 4); - f++; - f->e_id_length = ipfix_e_id_length (0, sourceIPv4Address, 4); - f++; - } - } - - /* Back to the template packet... */ - ip = (ip4_header_t *) & tp->ip4; - udp = (udp_header_t *) (ip + 1); - - ASSERT (f - first_field); - /* Field count in this template */ - t->id_count = ipfix_id_count (fr->template_id, f - first_field); - - /* set length in octets */ - s->set_id_length = - ipfix_set_id_length (2 /* set_id */ , (u8 *) f - (u8 *) s); - - /* message length in octets */ - h->version_length = version_length ((u8 *) f - (u8 *) h); - - ip->length = clib_host_to_net_u16 ((u8 *) f - (u8 *) ip); - ip->checksum = ip4_header_checksum (ip); - - return rewrite; -} - -u8 * -snat_template_rewrite_addr_exhausted (flow_report_main_t * frm, - flow_report_t * fr, - ip4_address_t * collector_address, - ip4_address_t * src_address, - u16 collector_port) -{ - return snat_template_rewrite (frm, fr, collector_address, src_address, - collector_port, NAT_ADDRESSES_EXHAUTED, 0); -} - -u8 * -snat_template_rewrite_nat44_session (flow_report_main_t * frm, - flow_report_t * fr, - ip4_address_t * collector_address, - ip4_address_t * src_address, - u16 collector_port) -{ - return snat_template_rewrite (frm, fr, collector_address, src_address, - collector_port, NAT44_SESSION_CREATE, 0); -} - -u8 * -snat_template_rewrite_max_entries_per_usr (flow_report_main_t * frm, - flow_report_t * fr, - ip4_address_t * collector_address, - ip4_address_t * src_address, - u16 collector_port) -{ - return snat_template_rewrite (frm, fr, collector_address, src_address, - collector_port, QUOTA_EXCEEDED, - MAX_ENTRIES_PER_USER); -} - -static inline void -snat_ipfix_header_create (flow_report_main_t * frm, - vlib_buffer_t * b0, - u32 * offset) -{ - snat_ipfix_logging_main_t *silm = &snat_ipfix_logging_main; - flow_report_stream_t *stream; - ip4_ipfix_template_packet_t * tp; - ipfix_message_header_t * h = 0; - ipfix_set_header_t * s = 0; - ip4_header_t * ip; - udp_header_t * udp; - - stream = &frm->streams[silm->stream_index]; - - b0->current_data = 0; - b0->current_length = sizeof (*ip) + sizeof (*udp) + sizeof (*h) + - sizeof (*s); - b0->flags |= (VLIB_BUFFER_TOTAL_LENGTH_VALID | VLIB_BUFFER_FLOW_REPORT); - vnet_buffer (b0)->sw_if_index[VLIB_RX] = 0; - vnet_buffer (b0)->sw_if_index[VLIB_TX] = frm->fib_index; - tp = vlib_buffer_get_current (b0); - ip = (ip4_header_t *) &tp->ip4; - udp = (udp_header_t *) (ip+1); - h = (ipfix_message_header_t *)(udp+1); - s = (ipfix_set_header_t *)(h+1); - - ip->ip_version_and_header_length = 0x45; - ip->ttl = 254; - ip->protocol = IP_PROTOCOL_UDP; - ip->flags_and_fragment_offset = 0; - ip->src_address.as_u32 = frm->src_address.as_u32; - ip->dst_address.as_u32 = frm->ipfix_collector.as_u32; - udp->src_port = clib_host_to_net_u16 (stream->src_port); - udp->dst_port = clib_host_to_net_u16 (frm->collector_port); - udp->checksum = 0; - - h->export_time = clib_host_to_net_u32 ( - (u32) (((f64)frm->unix_time_0) + (vlib_time_now(frm->vlib_main) - - frm->vlib_time_0))); - h->sequence_number = clib_host_to_net_u32 (stream->sequence_number++); - h->domain_id = clib_host_to_net_u32 (stream->domain_id); - - *offset = (u32) (((u8 *)(s+1)) - (u8 *)tp); -} - -static inline void -snat_ipfix_send (flow_report_main_t * frm, - vlib_frame_t * f, - vlib_buffer_t * b0, - u16 template_id) -{ - ip4_ipfix_template_packet_t * tp; - ipfix_message_header_t * h = 0; - ipfix_set_header_t * s = 0; - ip4_header_t * ip; - udp_header_t * udp; - vlib_main_t * vm = frm->vlib_main; - - tp = vlib_buffer_get_current (b0); - ip = (ip4_header_t *) & tp->ip4; - udp = (udp_header_t *) (ip + 1); - h = (ipfix_message_header_t *) (udp + 1); - s = (ipfix_set_header_t *) (h + 1); - - s->set_id_length = ipfix_set_id_length (template_id, - b0->current_length - - (sizeof (*ip) + sizeof (*udp) + - sizeof (*h))); - h->version_length = version_length (b0->current_length - - (sizeof (*ip) + sizeof (*udp))); - - ip->length = clib_host_to_net_u16 (b0->current_length); - ip->checksum = ip4_header_checksum (ip); - udp->length = clib_host_to_net_u16 (b0->current_length - sizeof (*ip)); - - if (frm->udp_checksum) - { - udp->checksum = ip4_tcp_udp_compute_checksum (vm, b0, ip); - if (udp->checksum == 0) - udp->checksum = 0xffff; - } - - ASSERT (ip->checksum == ip4_header_checksum (ip)); - - vlib_put_frame_to_node (vm, ip4_lookup_node.index, f); -} - -static void -snat_ipfix_logging_nat44_ses (u8 nat_event, u32 src_ip, u32 nat_src_ip, - snat_protocol_t snat_proto, u16 src_port, - u16 nat_src_port, u32 vrf_id, int do_flush) -{ - snat_ipfix_logging_main_t *silm = &snat_ipfix_logging_main; - flow_report_main_t *frm = &flow_report_main; - vlib_frame_t *f; - vlib_buffer_t *b0 = 0; - u32 bi0 = ~0; - u32 offset; - vlib_main_t * vm = frm->vlib_main; - u64 now; - vlib_buffer_free_list_t *fl; - u8 proto = ~0; - - if (!silm->enabled) - return; - - proto = snat_proto_to_ip_proto (snat_proto); - - now = (u64) ((vlib_time_now (vm) - silm->vlib_time_0) * 1e3); - now += silm->milisecond_time_0; - - b0 = silm->nat44_session_buffer; - - if (PREDICT_FALSE (b0 == 0)) - { - if (do_flush) - return; - - if (vlib_buffer_alloc (vm, &bi0, 1) != 1) - { - clib_warning ("can't allocate buffer for NAT IPFIX event"); - return; - } - - b0 = silm->nat44_session_buffer = - vlib_get_buffer (vm, bi0); - fl = vlib_buffer_get_free_list (vm, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX); - vlib_buffer_init_for_free_list (b0, fl); - VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b0); - offset = 0; - } - else - { - bi0 = vlib_get_buffer_index (vm, b0); - offset = silm->nat44_session_next_record_offset; - } - - f = silm->nat44_session_frame; - if (PREDICT_FALSE (f == 0)) - { - u32 * to_next; - f = vlib_get_frame_to_node (vm, ip4_lookup_node.index); - silm->nat44_session_frame = f; - to_next = vlib_frame_vector_args (f); - to_next[0] = bi0; - f->n_vectors = 1; - } - - if (PREDICT_FALSE (offset == 0)) - snat_ipfix_header_create (frm, b0, &offset); - - if (PREDICT_TRUE (do_flush == 0)) - { - u64 time_stamp = clib_host_to_net_u64 (now); - clib_memcpy (b0->data + offset, &time_stamp, sizeof (time_stamp)); - offset += sizeof (time_stamp); - - clib_memcpy (b0->data + offset, &nat_event, sizeof (nat_event)); - offset += sizeof (nat_event); - - clib_memcpy (b0->data + offset, &src_ip, sizeof (src_ip)); - offset += sizeof (src_ip); - - clib_memcpy (b0->data + offset, &nat_src_ip, sizeof (nat_src_ip)); - offset += sizeof (nat_src_ip); - - clib_memcpy (b0->data + offset, &proto, sizeof (proto)); - offset += sizeof (proto); - - clib_memcpy (b0->data + offset, &src_port, sizeof (src_port)); - offset += sizeof (src_port); - - clib_memcpy (b0->data + offset, &nat_src_port, sizeof (nat_src_port)); - offset += sizeof (nat_src_port); - - clib_memcpy (b0->data + offset, &vrf_id, sizeof(vrf_id)); - offset += sizeof (vrf_id); - - b0->current_length += NAT44_SESSION_CREATE_LEN; - } - - if (PREDICT_FALSE (do_flush || (offset + NAT44_SESSION_CREATE_LEN) > frm->path_mtu)) - { - snat_ipfix_send (frm, f, b0, silm->nat44_session_template_id); - silm->nat44_session_frame = 0; - silm->nat44_session_buffer = 0; - offset = 0; - } - silm->nat44_session_next_record_offset = offset; - } - -static void -snat_ipfix_logging_addr_exhausted (u32 pool_id, int do_flush) -{ - snat_ipfix_logging_main_t *silm = &snat_ipfix_logging_main; - flow_report_main_t *frm = &flow_report_main; - vlib_frame_t *f; - vlib_buffer_t *b0 = 0; - u32 bi0 = ~0; - u32 offset; - vlib_main_t * vm = frm->vlib_main; - u64 now; - vlib_buffer_free_list_t *fl; - u8 nat_event = NAT_ADDRESSES_EXHAUTED; - - if (!silm->enabled) - return; - - now = (u64) ((vlib_time_now (vm) - silm->vlib_time_0) * 1e3); - now += silm->milisecond_time_0; - - b0 = silm->addr_exhausted_buffer; - - if (PREDICT_FALSE (b0 == 0)) - { - if (do_flush) - return; - - if (vlib_buffer_alloc (vm, &bi0, 1) != 1) - { - clib_warning ("can't allocate buffer for NAT IPFIX event"); - return; - } - - b0 = silm->addr_exhausted_buffer = - vlib_get_buffer (vm, bi0); - fl = vlib_buffer_get_free_list (vm, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX); - vlib_buffer_init_for_free_list (b0, fl); - VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b0); - offset = 0; - } - else - { - bi0 = vlib_get_buffer_index (vm, b0); - offset = silm->addr_exhausted_next_record_offset; - } - - f = silm->addr_exhausted_frame; - if (PREDICT_FALSE (f == 0)) - { - u32 * to_next; - f = vlib_get_frame_to_node (vm, ip4_lookup_node.index); - silm->addr_exhausted_frame = f; - to_next = vlib_frame_vector_args (f); - to_next[0] = bi0; - f->n_vectors = 1; - } - - if (PREDICT_FALSE (offset == 0)) - snat_ipfix_header_create (frm, b0, &offset); - - if (PREDICT_TRUE (do_flush == 0)) - { - u64 time_stamp = clib_host_to_net_u64 (now); - clib_memcpy (b0->data + offset, &time_stamp, sizeof (time_stamp)); - offset += sizeof (time_stamp); - - clib_memcpy (b0->data + offset, &nat_event, sizeof (nat_event)); - offset += sizeof (nat_event); - - clib_memcpy (b0->data + offset, &pool_id, sizeof(pool_id)); - offset += sizeof (pool_id); - - b0->current_length += NAT_ADDRESSES_EXHAUTED_LEN; - } - - if (PREDICT_FALSE (do_flush || (offset + NAT_ADDRESSES_EXHAUTED_LEN) > frm->path_mtu)) - { - snat_ipfix_send (frm, f, b0, silm->addr_exhausted_template_id); - silm->addr_exhausted_frame = 0; - silm->addr_exhausted_buffer = 0; - offset = 0; - } - silm->addr_exhausted_next_record_offset = offset; -} - -static void -snat_ipfix_logging_max_entries_per_usr (u32 src_ip, int do_flush) -{ - snat_ipfix_logging_main_t *silm = &snat_ipfix_logging_main; - flow_report_main_t *frm = &flow_report_main; - vlib_frame_t *f; - vlib_buffer_t *b0 = 0; - u32 bi0 = ~0; - u32 offset; - vlib_main_t * vm = frm->vlib_main; - u64 now; - vlib_buffer_free_list_t *fl; - u8 nat_event = QUOTA_EXCEEDED; - u32 quota_event = MAX_ENTRIES_PER_USER; - - if (!silm->enabled) - return; - - now = (u64) ((vlib_time_now (vm) - silm->vlib_time_0) * 1e3); - now += silm->milisecond_time_0; - - b0 = silm->max_entries_per_user_buffer; - - if (PREDICT_FALSE (b0 == 0)) - { - if (do_flush) - return; - - if (vlib_buffer_alloc (vm, &bi0, 1) != 1) - { - clib_warning ("can't allocate buffer for NAT IPFIX event"); - return; - } - - b0 = silm->max_entries_per_user_buffer = - vlib_get_buffer (vm, bi0); - fl = vlib_buffer_get_free_list (vm, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX); - vlib_buffer_init_for_free_list (b0, fl); - VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b0); - offset = 0; - } - else - { - bi0 = vlib_get_buffer_index (vm, b0); - offset = silm->max_entries_per_user_next_record_offset; - } - - f = silm->max_entries_per_user_frame; - if (PREDICT_FALSE (f == 0)) - { - u32 * to_next; - f = vlib_get_frame_to_node (vm, ip4_lookup_node.index); - silm->max_entries_per_user_frame = f; - to_next = vlib_frame_vector_args (f); - to_next[0] = bi0; - f->n_vectors = 1; - } - - if (PREDICT_FALSE (offset == 0)) - snat_ipfix_header_create (frm, b0, &offset); - - if (PREDICT_TRUE (do_flush == 0)) - { - u64 time_stamp = clib_host_to_net_u64 (now); - clib_memcpy (b0->data + offset, &time_stamp, sizeof (time_stamp)); - offset += sizeof (time_stamp); - - clib_memcpy (b0->data + offset, &nat_event, sizeof (nat_event)); - offset += sizeof (nat_event); - - clib_memcpy (b0->data + offset, "a_event, sizeof(quota_event)); - offset += sizeof (quota_event); - - clib_memcpy (b0->data + offset, &src_ip, sizeof (src_ip)); - offset += sizeof (src_ip); - - b0->current_length += MAX_ENTRIES_PER_USER_LEN; - } - - if (PREDICT_FALSE (do_flush || (offset + MAX_ENTRIES_PER_USER_LEN) > frm->path_mtu)) - { - snat_ipfix_send (frm, f, b0, silm->max_entries_per_user_template_id); - silm->max_entries_per_user_frame = 0; - silm->max_entries_per_user_buffer = 0; - offset = 0; - } - silm->max_entries_per_user_next_record_offset = offset; -} - -static void -snat_ipfix_logging_nat44_ses_rpc_cb (snat_ipfix_logging_nat44_ses_args_t *a) -{ - snat_ipfix_logging_nat44_ses(a->nat_event, a->src_ip, a->nat_src_ip, - a->snat_proto, a->src_port, a->nat_src_port, - a->vrf_id, 0); -} - -/** - * @brief Generate NAT44 session create event - * - * @param src_ip source IPv4 address - * @param nat_src_ip transaltes source IPv4 address - * @param snat_proto SNAT transport protocol - * @param src_port source port - * @param nat_src_port translated source port - * @param vrf_id VRF ID - */ -void -snat_ipfix_logging_nat44_ses_create (u32 src_ip, - u32 nat_src_ip, - snat_protocol_t snat_proto, - u16 src_port, - u16 nat_src_port, - u32 vrf_id) -{ - snat_ipfix_logging_nat44_ses_args_t a; - - a.nat_event = NAT44_SESSION_CREATE; - a.src_ip = src_ip; - a.nat_src_ip = nat_src_ip; - a.snat_proto = snat_proto; - a.src_port = src_port; - a.nat_src_port = nat_src_port; - a.vrf_id = vrf_id; - - vl_api_rpc_call_main_thread (snat_ipfix_logging_nat44_ses_rpc_cb, (u8 *) &a, - sizeof (a)); -} - -/** - * @brief Generate NAT44 session delete event - * - * @param src_ip source IPv4 address - * @param nat_src_ip transaltes source IPv4 address - * @param snat_proto SNAT transport protocol - * @param src_port source port - * @param nat_src_port translated source port - * @param vrf_id VRF ID - */ -void -snat_ipfix_logging_nat44_ses_delete (u32 src_ip, - u32 nat_src_ip, - snat_protocol_t snat_proto, - u16 src_port, - u16 nat_src_port, - u32 vrf_id) -{ - snat_ipfix_logging_nat44_ses_args_t a; - - a.nat_event = NAT44_SESSION_DELETE; - a.src_ip = src_ip; - a.nat_src_ip = nat_src_ip; - a.snat_proto = snat_proto; - a.src_port = src_port; - a.nat_src_port = nat_src_port; - a.vrf_id = vrf_id; - - vl_api_rpc_call_main_thread (snat_ipfix_logging_nat44_ses_rpc_cb, (u8 *) &a, - sizeof (a)); -} - -vlib_frame_t * -snat_data_callback_nat44_session (flow_report_main_t * frm, - flow_report_t * fr, - vlib_frame_t * f, - u32 * to_next, - u32 node_index) -{ - snat_ipfix_logging_nat44_ses(0, 0, 0, 0, 0, 0, 0, 1); - return f; -} - -static void -snat_ipfix_logging_addr_exhausted_rpc_cb - (snat_ipfix_logging_addr_exhausted_args_t * a) -{ - snat_ipfix_logging_addr_exhausted(a->pool_id, 0); -} - -/** - * @brief Generate NAT addresses exhausted event - * - * @param pool_id NAT pool ID - */ -void -snat_ipfix_logging_addresses_exhausted(u32 pool_id) -{ - //TODO: This event SHOULD be rate limited - snat_ipfix_logging_addr_exhausted_args_t a; - - a.pool_id = pool_id; - - vl_api_rpc_call_main_thread (snat_ipfix_logging_addr_exhausted_rpc_cb, - (u8 *) &a, sizeof (a)); -} - -vlib_frame_t * -snat_data_callback_addr_exhausted (flow_report_main_t * frm, - flow_report_t * fr, - vlib_frame_t * f, - u32 * to_next, - u32 node_index) -{ - snat_ipfix_logging_addr_exhausted(0, 1); - return f; -} - -static void -snat_ipfix_logging_max_entries_per_usr_rpc_cb - (snat_ipfix_logging_max_entries_per_user_args_t * a) -{ - snat_ipfix_logging_max_entries_per_usr(a->src_ip, 0); -} - -/** - * @brief Generate maximum entries per user exceeded event - * - * @param src_ip source IPv4 address - */ -void -snat_ipfix_logging_max_entries_per_user(u32 src_ip) -{ - //TODO: This event SHOULD be rate limited - snat_ipfix_logging_max_entries_per_user_args_t a; - - a.src_ip = src_ip; - - vl_api_rpc_call_main_thread (snat_ipfix_logging_max_entries_per_usr_rpc_cb, - (u8 *) &a, sizeof (a)); -} - -vlib_frame_t * -snat_data_callback_max_entries_per_usr (flow_report_main_t * frm, - flow_report_t * fr, - vlib_frame_t * f, - u32 * to_next, - u32 node_index) -{ - snat_ipfix_logging_max_entries_per_usr(0, 1); - return f; -} - -/** - * @brief Enable/disable SNAT IPFIX logging - * - * @param enable 1 if enable, 0 if disable - * @param domain_id observation domain ID - * @param src_port source port number - * - * @returns 0 if success - */ -int -snat_ipfix_logging_enable_disable (int enable, u32 domain_id, u16 src_port) -{ - snat_main_t * sm = &snat_main; - snat_ipfix_logging_main_t *silm = &snat_ipfix_logging_main; - flow_report_main_t *frm = &flow_report_main; - vnet_flow_report_add_del_args_t a; - int rv; - u8 e = enable ? 1 : 0; - - if (silm->enabled == e) - return 0; - - silm->enabled = e; - - memset (&a, 0, sizeof (a)); - a.is_add = enable; - a.domain_id = domain_id ? domain_id : 1; - a.src_port = src_port ? src_port : UDP_DST_PORT_ipfix; - - if (sm->deterministic) - { - a.rewrite_callback = snat_template_rewrite_max_entries_per_usr; - a.flow_data_callback = snat_data_callback_max_entries_per_usr; - - rv = vnet_flow_report_add_del (frm, &a, NULL); - if (rv) - { - clib_warning ("vnet_flow_report_add_del returned %d", rv); - return -1; - } - } - else - { - a.rewrite_callback = snat_template_rewrite_nat44_session; - a.flow_data_callback = snat_data_callback_nat44_session; - - rv = vnet_flow_report_add_del (frm, &a, NULL); - if (rv) - { - clib_warning ("vnet_flow_report_add_del returned %d", rv); - return -1; - } - - a.rewrite_callback = snat_template_rewrite_addr_exhausted; - a.flow_data_callback = snat_data_callback_addr_exhausted; - - rv = vnet_flow_report_add_del (frm, &a, NULL); - if (rv) - { - clib_warning ("vnet_flow_report_add_del returned %d", rv); - return -1; - } - } - - return 0; -} - -/** - * @brief Initialize SNAT IPFIX logging - * - * @param vm vlib main - */ -void -snat_ipfix_logging_init (vlib_main_t * vm) -{ - snat_ipfix_logging_main_t *silm = &snat_ipfix_logging_main; - - silm->enabled = 0; - - /* Set up time reference pair */ - silm->vlib_time_0 = vlib_time_now (vm); - silm->milisecond_time_0 = unix_time_now_nsec () * 1e-6; -} -- cgit 1.2.3-korg