--- /dev/null
+/*
+// Copyright (c) 2017 Intel Corporation
+//
+// 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.
+*/
+
+/**
+ * @file
+ * Pipeline CG-NAPT BE Implementation.
+ *
+ * Implementation of Pipeline CG-NAPT Back End (BE).
+ * Provides NAPT service on dataplane packets.
+ * Runs on a core as defined in the config file.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <rte_common.h>
+#include <rte_malloc.h>
+#include <rte_ip.h>
+#include <rte_tcp.h>
+#include <rte_udp.h>
+#include <rte_icmp.h>
+#include <rte_hash.h>
+#include <rte_byteorder.h>
+#include <rte_table_lpm.h>
+#include <rte_table_hash.h>
+#include <rte_table_stub.h>
+#include <rte_ring.h>
+#include <rte_mempool.h>
+
+#include <rte_jhash.h>
+#include <rte_cycles.h>
+#include <rte_ethdev.h>
+#include <rte_pipeline.h>
+#include <rte_timer.h>
+#include <rte_config.h>
+#include <rte_prefetch.h>
+#include <rte_hexdump.h>
+
+#include "pipeline_cgnapt_be.h"
+#include "pipeline_cgnapt_common.h"
+#include "pipeline_actions_common.h"
+#include "hash_func.h"
+#include "pipeline_arpicmp_be.h"
+#include "vnf_common.h"
+#include "app.h"
+#include "pipeline_common_be.h"
+#include "vnf_common.h"
+#include "lib_sip_alg.h"
+#include "lib_icmpv6.h"
+
+#include "pipeline_common_fe.h"
+#ifdef CT_CGNAT
+#include "rte_ct_tcp.h"
+#include "rte_cnxn_tracking.h"
+#endif
+#ifdef FTP_ALG
+#include "lib_ftp_alg.h"
+#endif
+#ifdef PCP_ENABLE
+#include "cgnapt_pcp_be.h"
+#endif
+
+/* To maintain all cgnapt pipeline pointers used for all stats */
+struct pipeline_cgnapt *all_pipeline_cgnapt[128];
+uint8_t n_cgnapt_pipeline;
+
+/* To know egress or ingress port */
+static uint8_t cgnapt_in_port_egress_prv[PIPELINE_MAX_PORT_IN];
+static uint8_t cgnapt_prv_que_port_index[PIPELINE_MAX_PORT_IN];
+
+/* Max port per client declarations */
+
+struct rte_hash_parameters max_port_per_client_hash_params = {
+ .name = "MAX_PORT_PER_CLIENT",
+ .entries = MAX_DYN_ENTRY,
+ .key_len = sizeof(struct max_port_per_client_key),
+ .hash_func = rte_jhash,
+ .hash_func_init_val = 0,
+};
+#ifdef CT_CGNAT
+struct rte_ct_cnxn_tracker *cgnat_cnxn_tracker;
+#endif
+
+/***** Common Port Allocation declarations *****/
+
+struct rte_ring *port_alloc_ring[MAX_CGNAPT_SETS] = { NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL };
+const char *napt_port_alloc_ring_name[MAX_CGNAPT_SETS] = {
+ "NAPT_PORT_ALLOC_0 ",
+ "NAPT_PORT_ALLOC_1 ",
+ "NAPT_PORT_ALLOC_2 ",
+ "NAPT_PORT_ALLOC_3 ",
+ "NAPT_PORT_ALLOC_4 ",
+ "NAPT_PORT_ALLOC_5 ",
+ "NAPT_PORT_ALLOC_6 ",
+ "NAPT_PORT_ALLOC_7 "
+};
+
+int vnf_set_count = -1;
+
+struct app_params *myApp;
+
+/***** Common Port Allocation declarations *****/
+int napt_port_alloc_elem_count;
+
+/***** Common Table declarations *****/
+struct rte_hash_parameters napt_common_table_hash_params = {
+ .name = "NAPT_COM_TBL",
+ .entries = MAX_NAPT_ENTRIES,
+ .key_len = sizeof(struct pipeline_cgnapt_entry_key),
+ .hash_func = rte_jhash,
+ .hash_func_init_val = 0,
+ .extra_flag = 1,
+};
+
+/***** ARP local cache *****/
+uint8_t link_hw_laddr_valid[MAX_NUM_LOCAL_MAC_ADDRESS] = {
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+struct ether_addr link_hw_laddr[MAX_NUM_LOCAL_MAC_ADDRESS] = {
+ {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
+ {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
+ {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
+ {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
+ {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
+ {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
+ {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
+ {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
+ {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
+ {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
+ {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
+ {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
+ {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
+ {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
+ {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
+ {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} }
+};
+
+/****** NAT64 declarations *****/
+
+uint8_t well_known_prefix[16] = {
+ 0x00, 0x64, 0xff, 0x9b,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00
+};
+
+static uint32_t local_get_nh_ipv4(
+ uint32_t ip,
+ uint32_t *port,
+ uint32_t *nhip,
+ struct pipeline_cgnapt *p_nat);
+
+static void do_local_nh_ipv4_cache(
+ uint32_t dest_if,
+ struct pipeline_cgnapt *p_nat);
+
+static uint32_t local_get_nh_ipv6(
+ uint8_t *ip,
+ uint32_t *port,
+ uint8_t nhip[],
+ struct pipeline_cgnapt *p_nat);
+
+static void do_local_nh_ipv6_cache(
+ uint32_t dest_if,
+ struct pipeline_cgnapt *p_nat);
+
+static uint8_t check_arp_icmp(
+ struct rte_mbuf *pkt,
+ uint64_t pkt_mask,
+ struct pipeline_cgnapt *p_nat);
+
+/* Finds next power of two for n. If n itself
+ * is a power of two then returns n
+ *
+ * @param n
+ * Value usually 32-bit value
+ *
+ * @return
+ * Value after roundup to power of 2
+*/
+uint64_t nextPowerOf2(uint64_t n)
+{
+ n--;
+ n |= n >> 1;
+ n |= n >> 2;
+ n |= n >> 4;
+ n |= n >> 8;
+ n |= n >> 16;
+ n |= n >> 32;
+ n++;
+ return n;
+}
+
+/**
+ * Function to get MAC addr of local link
+ *
+ * @params out_port
+ * Physical port number
+ *
+ * @return
+ * Outport Link MAC addr
+ */
+
+struct ether_addr *get_local_link_hw_addr(uint8_t out_port)
+{
+ return &link_hw_laddr[out_port];
+}
+
+/**
+ * Function to get MAC addr from array instead of hash table
+ *
+ * @params out_port
+ * Physical port number
+ *
+ * @return
+ * Outport Link MAC addr
+ */
+
+uint8_t local_dest_mac_present(uint8_t out_port)
+{
+ return link_hw_laddr_valid[out_port];
+}
+
+/**
+ * Function to get IPv4-IP NH from thread local array
+ *
+ * @params ip
+ * IPv4 - IP
+ * @params port
+ * NH port number
+ * @params nhip
+ * NHIP of IPv4 type
+ * @params p_nat
+ * CGNAPT pipeline ptr
+ *
+ * @return
+ * 1 on success, 0 for failure
+ */
+
+static uint32_t local_get_nh_ipv4(
+ uint32_t ip,
+ uint32_t *port,
+ uint32_t *nhip,
+ struct pipeline_cgnapt *p_nat)
+{
+ int i;
+ for (i = 0; i < p_nat->local_lib_arp_route_ent_cnt; i++) {
+ if (((p_nat->local_lib_arp_route_table[i].ip &
+ p_nat->local_lib_arp_route_table[i].mask) ==
+ (ip & p_nat->local_lib_arp_route_table[i].mask))) {
+ *port = p_nat->local_lib_arp_route_table[i].port;
+
+ *nhip = p_nat->local_lib_arp_route_table[i].nh;
+ return 1;
+ }
+ }
+ return 0;
+}
+
+/**
+ * Function to make local copy for NH of type IPv4
+ *
+ * @params dest_if
+ * Physical port number
+ * @params p_nat
+ * CGNAPT pipeline ptr
+ *
+ */
+
+static void do_local_nh_ipv4_cache(
+ uint32_t dest_if,
+ struct pipeline_cgnapt *p_nat)
+{
+
+ /* Search for the entry and do local copy */
+ int i;
+
+ for (i = 0; i < MAX_ARP_RT_ENTRY; i++) {
+ if (lib_arp_route_table[i].port == dest_if) {
+
+ struct lib_arp_route_table_entry *lentry =
+ &p_nat->local_lib_arp_route_table
+ [p_nat->local_lib_arp_route_ent_cnt];
+
+ lentry->ip = lib_arp_route_table[i].ip;
+ lentry->mask = lib_arp_route_table[i].mask;
+ lentry->port = lib_arp_route_table[i].port;
+ lentry->nh = lib_arp_route_table[i].nh;
+
+ p_nat->local_lib_arp_route_ent_cnt++;
+ break;
+ }
+ }
+}
+
+
+/**
+ * Function to get IPv6-IP NH from thread local array
+ *
+ * @params ip
+ * Pointer to starting addr of IPv6
+ * @params port
+ * NH port number
+ * @params nhip
+ * NHIP of IPv6 type
+ * @params p_nat
+ * CGNAPT pipeline ptr
+ *
+ * @return
+ * 1 on success, 0 for failure
+ */
+
+static uint32_t local_get_nh_ipv6(
+ uint8_t *ip,
+ uint32_t *port,
+ uint8_t nhip[],
+ struct pipeline_cgnapt *p_nat)
+{
+ int i = 0;
+ uint8_t netmask_ipv6[16];
+ uint8_t k = 0, l = 0, depthflags = 0, depthflags1 = 0;
+
+ for (i = 0; i < p_nat->local_lib_nd_route_ent_cnt; i++) {
+
+ convert_prefixlen_to_netmask_ipv6(
+ p_nat->local_lib_nd_route_table[i].depth,
+ netmask_ipv6);
+
+ for (k = 0; k < 16; k++)
+ if (p_nat->local_lib_nd_route_table[i].ipv6[k] &
+ netmask_ipv6[k])
+ depthflags++;
+
+ for (l = 0; l < 16; l++)
+ if (ip[l] & netmask_ipv6[l])
+ depthflags1++;
+
+ int j = 0;
+ if (depthflags == depthflags1) {
+ *port = p_nat->local_lib_nd_route_table[i].port;
+
+ for (j = 0; j < 16; j++)
+ nhip[j] = p_nat->local_lib_nd_route_table[i].
+ nhipv6[j];
+ return 1;
+ }
+
+ depthflags = 0;
+ depthflags1 = 0;
+ }
+ return 0;
+}
+
+
+/**
+ * Function to make local copy for NH of type IPv6
+ *
+ * @params dest_if
+ * Physical port number
+ * @params p_nat
+ * CGNAPT pipeline ptr
+ *
+ */
+
+static void do_local_nh_ipv6_cache(
+ uint32_t dest_if,
+ struct pipeline_cgnapt *p_nat)
+{
+ /* Search for the entry and do local copy */
+ int i, l;
+ for (i = 0; i < MAX_ND_RT_ENTRY; i++) {
+
+ if (lib_nd_route_table[i].port == dest_if) {
+
+ struct lib_nd_route_table_entry *lentry =
+ &p_nat->local_lib_nd_route_table
+ [p_nat->local_lib_nd_route_ent_cnt];
+
+ for (l = 0; l < 16; l++) {
+ lentry->ipv6[l] =
+ lib_nd_route_table[i].ipv6[l];
+ lentry->nhipv6[l] =
+ lib_nd_route_table[i].nhipv6[l];
+ }
+ lentry->depth = lib_nd_route_table[i].depth;
+ lentry->port = lib_nd_route_table[i].port;
+
+ p_nat->local_lib_nd_route_ent_cnt++;
+ break;
+ } //if
+ } //for
+}
+
+#ifdef SIP_ALG
+/* Commented code may be required for future usage, Please keep it*/
+#if 0
+static int retrieve_cgnapt_entry_alg(
+ struct pipeline_cgnapt_entry_key *key,
+ struct cgnapt_table_entry **entry_ptr1,
+ struct cgnapt_table_entry **entry_ptr2)
+{
+ #ifdef CGNAPT_DBG_PRNT
+ printf("retrieve_cgnapt_entry key detail Entry:"
+ "0x%x, %d, %d\n", key->ip, key->port,
+ key->pid);
+ #endif
+
+ int position = rte_hash_lookup(napt_common_table, key);
+ if (position < 0) {
+ printf("Invalid cgnapt entry position(first_key): %d\n",
+ position);
+ return 0;
+ }
+
+ *entry_ptr1 = &napt_hash_tbl_entries[position];
+
+ uint32_t prv_ip = (*entry_ptr1)->data.prv_ip;
+ uint32_t prv_port = (*entry_ptr1)->data.prv_port;
+ uint32_t prv_phy_port = (*entry_ptr1)->data.prv_phy_port;
+
+ struct pipeline_cgnapt_entry_key second_key;
+ second_key.ip = prv_ip;
+ second_key.port = prv_port;
+ second_key.pid = prv_phy_port;
+
+ position = rte_hash_lookup(napt_common_table, &second_key);
+ if (position < 0) {
+ printf("Invalid cgnapt entry position(second_key): %d\n",
+ position);
+ return 0;
+ }
+
+ *entry_ptr2 = &napt_hash_tbl_entries[position];
+
+ return 1;
+}
+#endif
+
+int add_dynamic_cgnapt_entry_alg(
+ struct pipeline *p,
+ struct pipeline_cgnapt_entry_key *key,
+ struct cgnapt_table_entry **entry_ptr1,
+ struct cgnapt_table_entry **entry_ptr2)
+{
+ int port_num = 0, ret;
+
+ struct pipeline_cgnapt *p_nat = (struct pipeline_cgnapt *)p;
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG >= 1) {
+ printf("Th%d add_dynamic_cgnapt_entry key detail Entry:"
+ "0x%x, %d, %d\n", p_nat->pipeline_num, key->ip, key->port,
+ key->pid);
+ }
+ #endif
+
+ int32_t position = rte_hash_lookup(napt_common_table, key);
+ if (position >= 0) {
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG >= 1) {
+ printf("%s: cgnapt entry exists in "
+ "position(first_key): %d\n", __func__, position);
+ }
+ #endif
+ *entry_ptr1 = &napt_hash_tbl_entries[position];
+ /* not required, as it is not used in the caller */
+ *entry_ptr2 = NULL;
+ return 1;
+ }
+
+
+ ret = increment_max_port_counter(key->ip, key->pid, p_nat);
+ if (ret == MAX_PORT_INC_ERROR) {
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 1)
+ printf("add_dynamic_cgnapt_entry:"
+ "increment_max_port_counter-1 failed\n");
+ #endif
+
+ return 0;
+ }
+
+ if (ret == MAX_PORT_INC_REACHED) {
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 1)
+ printf("add_dynamic_cgnapt_entry:"
+ "increment_max_port_counter-2 failed\n");
+ #endif
+
+ return 0;
+ }
+
+ uint32_t public_ip;
+ port_num = get_free_iport(p_nat, &public_ip);
+
+ if (port_num == -1) {
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("add_dynamic_cgnapt_entry: %d\n", port_num);
+ printf("add_dynamic_cgnapt_entry key detail:0x%x, "
+ "%d, %d\n", key->ip, key->port, key->pid);
+ }
+ #endif
+
+ return 0;
+ }
+
+ /* check for max_clients_per_ip */
+ if (rte_atomic16_read
+ (&all_public_ip
+ [rte_jhash(&public_ip, 4, 0) % 16].count) ==
+ p_nat->max_clients_per_ip) {
+ /* For now just bail out
+ * In future we can think about
+ * retrying getting a new iport
+ */
+ release_iport(port_num, public_ip, p_nat);
+
+ return 0;
+ }
+
+ rte_atomic16_inc(&all_public_ip
+ [rte_jhash(&public_ip, 4, 0) %
+ 16].count);
+
+ #ifdef CGNAPT_DBG_PRNT
+ if ((rte_jhash(&public_ip, 4, 0) % 16) == 8)
+ printf("pub ip:%x coutn:%d\n", public_ip,
+ rte_atomic16_read(&all_public_ip
+ [rte_jhash(&public_ip, 4, 0) % 16].count));
+ #endif
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 0) {
+ printf("add_dynamic_cgnapt_entry: %d\n",
+ port_num);
+ printf("add_dynamic_cgnapt_entry key detail: "
+ "0x%x, %d, %d\n", key->ip, key->port, key->pid);
+ }
+ #endif
+
+ struct cgnapt_table_entry entry = {
+ .head = {
+ .action = RTE_PIPELINE_ACTION_PORT,
+ /* made it configurable below */
+ {.port_id = p->port_out_id[0]},
+ },
+
+ .data = {
+ .prv_port = key->port,
+ .pub_ip = public_ip,
+ .pub_port = port_num,
+ .prv_phy_port = key->pid,
+ .pub_phy_port = get_pub_to_prv_port(
+ &public_ip,
+ IP_VERSION_4),
+ .ttl = 0,
+ /* if(timeout == -1) : static entry
+ * if(timeout == 0 ) : dynamic entry
+ * if(timeout > 0 ) : PCP requested entry
+ */
+ .timeout = 0,
+ #ifdef PCP_ENABLE
+ .timer = NULL,
+ #endif
+ }
+ };
+
+ entry.data.u.prv_ip = key->ip;
+ entry.data.type = CGNAPT_ENTRY_IPV4;
+
+ entry.head.port_id = entry.data.pub_phy_port; /* outgoing port info */
+
+ struct pipeline_cgnapt_entry_key second_key;
+ /* Need to add a second ingress entry */
+ second_key.ip = public_ip;
+ second_key.port = port_num;
+ second_key.pid = 0xffff;
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2)
+ printf("add_dynamic_cgnapt_entry second key detail:"
+ "0x%x, %d, %d\n", second_key.ip, second_key.port,
+ second_key.pid);
+ #endif
+
+ int32_t position1 = rte_hash_add_key(napt_common_table, (void *)key);
+
+ if (position1 < 0) {
+ printf("CG-NAPT entry add failed ...returning "
+ "without adding ... %d\n", position1);
+ return 0;
+ }
+
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG) {
+ printf("add_dynamic_cgnapt_entry:");
+ print_key(key);
+ print_cgnapt_entry(&entry);
+ }
+ #endif
+
+ memcpy(&napt_hash_tbl_entries[position1], &entry,
+ sizeof(struct cgnapt_table_entry));
+
+ /* this pointer is returned to pkt miss function */
+ *entry_ptr1 = &napt_hash_tbl_entries[position1];
+
+ p_nat->n_cgnapt_entry_added++;
+ p_nat->dynCgnaptCount++;
+
+ /* Now modify the forward port for reverse entry */
+
+ /* outgoing port info */
+ entry.head.port_id = entry.data.prv_phy_port;
+
+ int32_t position2 = rte_hash_add_key(napt_common_table, &second_key);
+
+ if (position2 < 0) {
+ printf("CG-NAPT entry reverse bulk add failed ..."
+ "returning with fwd add ...%d\n",
+ position2);
+ return 0;
+ }
+
+ memcpy(&napt_hash_tbl_entries[position2], &entry,
+ sizeof(struct cgnapt_table_entry));
+
+ *entry_ptr2 = &napt_hash_tbl_entries[position2];
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG >= 1) {
+ printf("add_dynamic_cgnapt_entry position: %d, %d\n",
+ position1, position2);
+ printf("add_dynamic_cgnapt_entry: entry_ptr1: %p, "
+ "entry_ptr2: %p\n", *entry_ptr1, *entry_ptr2);
+ }
+ #endif
+
+ timer_thread_enqueue(key, &second_key, *entry_ptr1,
+ *entry_ptr2, (struct pipeline *)p_nat);
+
+ p_nat->n_cgnapt_entry_added++;
+ p_nat->dynCgnaptCount++;
+
+ return 1;
+}
+
+#endif
+
+void hw_checksum(struct rte_mbuf *pkt, enum PKT_TYPE ver)
+{
+ struct tcp_hdr *tcp = NULL;
+ struct udp_hdr *udp = NULL;
+ struct icmp_hdr *icmp = NULL;
+ uint8_t *protocol;
+ void *ip_header = NULL;
+ uint16_t prot_offset = 0;
+ uint32_t pkt_type_is_ipv4 = 1;
+ int temp = 0;
+ pkt->ol_flags |= PKT_TX_IP_CKSUM;
+ pkt->l2_len = ETH_HDR_SIZE;
+
+
+
+ switch (ver) {
+ case PKT_TYPE_IPV4to6:
+ temp = -20;
+ case PKT_TYPE_IPV6:
+
+ ip_header = RTE_MBUF_METADATA_UINT32_PTR(pkt,
+ MBUF_HDR_ROOM + ETH_HDR_SIZE + temp);
+
+ pkt_type_is_ipv4 = 0;
+ pkt->ol_flags |= PKT_TX_IPV6;
+ pkt->l3_len =
+ sizeof(struct ipv6_hdr);
+ tcp = (struct tcp_hdr *)
+ ((unsigned char *)ip_header +
+ sizeof(struct ipv6_hdr));
+ udp = (struct udp_hdr *)
+ ((unsigned char *)ip_header +
+ sizeof(struct ipv6_hdr));
+ icmp = (struct icmp_hdr *)
+ ((unsigned char *)ip_header +
+ sizeof(struct ipv6_hdr));
+
+ prot_offset = PROT_OFST_IP6 + temp;
+ break;
+ case PKT_TYPE_IPV6to4:
+ temp = 20;
+ case PKT_TYPE_IPV4:
+
+ ip_header = RTE_MBUF_METADATA_UINT32_PTR(pkt,
+ MBUF_HDR_ROOM + ETH_HDR_SIZE + temp);
+
+ pkt->ol_flags |= PKT_TX_IPV4;
+ pkt->l3_len =
+ sizeof(struct ipv4_hdr);
+ tcp = (struct tcp_hdr *)
+ ((unsigned char *)ip_header +
+ sizeof(struct ipv4_hdr));
+ udp = (struct udp_hdr *)
+ ((unsigned char *)ip_header +
+ sizeof(struct ipv4_hdr));
+ icmp = (struct icmp_hdr *)
+ ((unsigned char *)ip_header +
+ sizeof(struct ipv4_hdr));
+ struct ipv4_hdr *ip_hdr =
+ (struct ipv4_hdr *)ip_header;
+ ip_hdr->hdr_checksum = 0;
+
+ prot_offset = PROT_OFST_IP4 + temp;
+ break;
+ default:
+ printf("hw_checksum: pkt version is invalid\n");
+ }
+ protocol = (uint8_t *) RTE_MBUF_METADATA_UINT8_PTR(pkt,
+ prot_offset);
+
+ switch (*protocol) {
+ case IP_PROTOCOL_TCP: /* 6 */
+ tcp->cksum = 0;
+ pkt->ol_flags |= PKT_TX_TCP_CKSUM;
+ if (pkt_type_is_ipv4) {
+ tcp->cksum = rte_ipv4_phdr_cksum(
+ (struct ipv4_hdr *)ip_header,
+ pkt->ol_flags);
+ } else {
+ tcp->cksum = rte_ipv6_phdr_cksum(
+ (struct ipv6_hdr *)ip_header,
+ pkt->ol_flags);
+ }
+ break;
+ case IP_PROTOCOL_UDP: /* 17 */
+ udp->dgram_cksum = 0;
+ pkt->ol_flags |= PKT_TX_UDP_CKSUM;
+ if (pkt_type_is_ipv4) {
+ udp->dgram_cksum =
+ rte_ipv4_phdr_cksum(
+ (struct ipv4_hdr *)ip_header,
+ pkt->ol_flags);
+ } else {
+ udp->dgram_cksum =
+ rte_ipv6_phdr_cksum(
+ (struct ipv6_hdr *)ip_header,
+ pkt->ol_flags);
+ }
+ break;
+ case IP_PROTOCOL_ICMP: /* 1 */
+ if (pkt_type_is_ipv4) {
+ /* ICMP checksum code */
+ struct ipv4_hdr *ip_hdr =
+ (struct ipv4_hdr *)ip_header;
+ int size = rte_bswap16(ip_hdr->total_length) - 20;
+ icmp->icmp_cksum = 0;
+ icmp->icmp_cksum =
+ ~rte_raw_cksum(icmp,
+ size);
+ }
+ break;
+
+ default:
+ printf("hw_checksum() : Neither TCP or UDP pkt\n");
+ break;
+ }
+}
+
+
+void sw_checksum(struct rte_mbuf *pkt, enum PKT_TYPE ver)
+{
+ struct tcp_hdr *tcp = NULL;
+ struct udp_hdr *udp = NULL;
+ struct icmp_hdr *icmp = NULL;
+ uint8_t *protocol;
+ void *ip_header = NULL;
+ uint16_t prot_offset = 0;
+ uint32_t pkt_type_is_ipv4 = 1;
+ int temp = 0;
+
+ switch (ver) {
+ case PKT_TYPE_IPV4to6:
+ temp = -20;
+ case PKT_TYPE_IPV6:
+
+ ip_header = RTE_MBUF_METADATA_UINT32_PTR(pkt,
+ MBUF_HDR_ROOM + ETH_HDR_SIZE + temp);
+
+ pkt_type_is_ipv4 = 0;
+ tcp = (struct tcp_hdr *)
+ ((unsigned char *)ip_header +
+ sizeof(struct ipv6_hdr));
+ udp = (struct udp_hdr *)
+ ((unsigned char *)ip_header +
+ sizeof(struct ipv6_hdr));
+ icmp = (struct icmp_hdr *)
+ ((unsigned char *)ip_header +
+ sizeof(struct ipv6_hdr));
+
+ prot_offset = PROT_OFST_IP6 + temp;
+ break;
+ case PKT_TYPE_IPV6to4:
+ temp = 20;
+ case PKT_TYPE_IPV4:
+
+ ip_header = RTE_MBUF_METADATA_UINT32_PTR(pkt,
+ MBUF_HDR_ROOM + ETH_HDR_SIZE + temp);
+
+ tcp = (struct tcp_hdr *)
+ ((unsigned char *)ip_header +
+ sizeof(struct ipv4_hdr));
+ udp = (struct udp_hdr *)
+ ((unsigned char *)ip_header +
+ sizeof(struct ipv4_hdr));
+ icmp = (struct icmp_hdr *)
+ ((unsigned char *)ip_header +
+ sizeof(struct ipv4_hdr));
+
+ prot_offset = PROT_OFST_IP4 + temp;
+ break;
+ default:
+ printf("sw_checksum: pkt version is invalid\n");
+ }
+ protocol = (uint8_t *) RTE_MBUF_METADATA_UINT8_PTR(pkt,
+ prot_offset);
+
+ switch (*protocol) {
+ case IP_PROTOCOL_TCP: /* 6 */
+ tcp->cksum = 0;
+ if (pkt_type_is_ipv4) {
+ struct ipv4_hdr *ip_hdr =
+ (struct ipv4_hdr *)ip_header;
+ tcp->cksum = rte_ipv4_udptcp_cksum(ip_hdr,
+ (void *)tcp);
+ ip_hdr->hdr_checksum = 0;
+ ip_hdr->hdr_checksum = rte_ipv4_cksum(
+ (struct ipv4_hdr *)ip_hdr);
+ } else {
+ tcp->cksum = rte_ipv6_udptcp_cksum(
+ (struct ipv6_hdr *)
+ ip_header, (void *)tcp);
+ }
+ break;
+ case IP_PROTOCOL_UDP: /* 17 */
+ udp->dgram_cksum = 0;
+ if (pkt_type_is_ipv4) {
+ struct ipv4_hdr *ip_hdr =
+ (struct ipv4_hdr *)ip_header;
+ udp->dgram_cksum = rte_ipv4_udptcp_cksum(
+ ip_hdr, (void *)udp);
+ ip_hdr->hdr_checksum = 0;
+ ip_hdr->hdr_checksum = rte_ipv4_cksum(ip_hdr);
+ } else {
+ udp->dgram_cksum = rte_ipv6_udptcp_cksum(
+ (struct ipv6_hdr *)
+ ip_header, (void *)udp);
+ }
+ break;
+ case IP_PROTOCOL_ICMP: /* 1 */
+ if (pkt_type_is_ipv4) {
+ /* ICMP checksum code */
+ struct ipv4_hdr *ip_hdr =
+ (struct ipv4_hdr *)ip_header;
+ int size = rte_bswap16(ip_hdr->total_length) - 20;
+ icmp->icmp_cksum = 0;
+ icmp->icmp_cksum =
+ ~rte_raw_cksum(icmp,
+ size);
+ ip_hdr->hdr_checksum = 0;
+ ip_hdr->hdr_checksum = rte_ipv4_cksum(ip_hdr);
+ }
+ break;
+
+ default:
+ printf("sw_checksum() : Neither TCP or UDP pkt\n");
+ break;
+ }
+}
+
+static uint8_t check_arp_icmp(
+ struct rte_mbuf *pkt,
+ uint64_t pkt_mask,
+ struct pipeline_cgnapt *p_nat)
+{
+ uint32_t eth_proto_offset = MBUF_HDR_ROOM + 12;
+ uint16_t *eth_proto = RTE_MBUF_METADATA_UINT16_PTR(
+ pkt, eth_proto_offset);
+ struct app_link_params *link;
+ uint8_t solicited_node_multicast_addr[16] = {
+ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x01, 0xff, 0x00, 0x00, 0x00};
+
+ /* ARP outport number */
+ uint16_t out_port = p_nat->p.n_ports_out - 1;
+
+ uint8_t *protocol;
+ uint32_t prot_offset;
+
+ link = &myApp->link_params[pkt->port];
+
+
+ switch (rte_be_to_cpu_16(*eth_proto)) {
+
+ case ETH_TYPE_ARP:
+
+ rte_pipeline_port_out_packet_insert(
+ p_nat->p.p,
+ out_port,
+ pkt);
+
+ /*
+ * Pkt mask should be changed, and not changing the
+ * drop mask
+ */
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->arpicmpPktCount++;
+
+ return 0;
+ break;
+ case ETH_TYPE_IPV4: {
+ /* header room + eth hdr size +
+ * src_aadr offset in ip header
+ */
+ uint32_t dst_addr_offset = MBUF_HDR_ROOM +
+ ETH_HDR_SIZE + IP_HDR_DST_ADR_OFST;
+ uint32_t *dst_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(pkt,
+ dst_addr_offset);
+ prot_offset = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_PROTOCOL_OFST;
+ protocol = RTE_MBUF_METADATA_UINT8_PTR(pkt,
+ prot_offset);
+ if ((*protocol == IP_PROTOCOL_ICMP) &&
+ link->ip == rte_be_to_cpu_32(*dst_addr)) {
+
+ if (is_phy_port_privte(pkt->port)) {
+
+ rte_pipeline_port_out_packet_insert(
+ p_nat->p.p, out_port, pkt);
+
+ /*
+ * Pkt mask should be changed,
+ * and not changing the drop mask
+ */
+
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->arpicmpPktCount++;
+
+ return 0;
+ }
+ }
+ return 1;
+ }
+ break;
+
+ #ifdef IPV6
+ case ETH_TYPE_IPV6:
+ if (dual_stack_enable) {
+
+ /* Commented code may be required for future usage,
+ * Please keep it
+ */
+ //uint32_t dst_addr_offset = MBUF_HDR_ROOM +
+ // ETH_HDR_SIZE + IPV6_HDR_DST_ADR_OFST;
+ //uint32_t *dst_addr =
+ // RTE_MBUF_METADATA_UINT32_PTR(pkt,
+ // dst_addr_offset);
+ uint32_t prot_offset_ipv6 = MBUF_HDR_ROOM +
+ ETH_HDR_SIZE + IPV6_HDR_PROTOCOL_OFST;
+ struct ipv6_hdr *ipv6_h;
+
+ ipv6_h = (struct ipv6_hdr *) MBUF_HDR_ROOM +
+ ETH_HDR_SIZE;
+ protocol = RTE_MBUF_METADATA_UINT8_PTR(pkt,
+ prot_offset_ipv6);
+
+ if (ipv6_h->proto == ICMPV6_PROTOCOL_ID) {
+ if (!memcmp(ipv6_h->dst_addr, link->ipv6, 16)
+ || !memcmp(ipv6_h->dst_addr,
+ solicited_node_multicast_addr, 13)) {
+ rte_pipeline_port_out_packet_insert(
+ p_nat->p.p, out_port, pkt);
+ /*
+ * Pkt mask should be changed,
+ * and not changing the drop mask
+ */
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->arpicmpPktCount++;
+ } else {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount1++;
+ #endif
+ }
+ return 0;
+ }
+ }
+ break;
+ #endif
+ default:
+ return 1;
+ }
+ return 1;
+}
+
+/**
+ * Function to create common NAPT table
+ * Called during pipeline initialization
+ * Creates the common NAPT table
+ * If it is not already created and stores its pointer
+ * in global napt_common_table pointer.
+ *
+ * @params nFlows
+ * Max number of NAPT flows. This parameter is configurable via config file.
+ *
+ * @return
+ * 0 on success, negative on error.
+ */
+int create_napt_common_table(uint32_t nFlows)
+{
+ if (napt_common_table != NULL) {
+ printf("napt_common_table already exists.\n");
+ return -1;
+ }
+
+ napt_common_table = rte_hash_create(&napt_common_table_hash_params);
+
+ if (napt_common_table == NULL) {
+ printf("napt_common_table creation failed.\n");
+ return -2;
+ }
+
+ uint32_t number_of_entries = nFlows;
+
+ uint32_t size =
+ RTE_CACHE_LINE_ROUNDUP(sizeof(struct cgnapt_table_entry) *
+ number_of_entries);
+ napt_hash_tbl_entries = rte_zmalloc(NULL, size, RTE_CACHE_LINE_SIZE);
+
+ if (napt_hash_tbl_entries == NULL) {
+ printf("napt_hash_tbl_entries creation failed. %d, %d\n",
+ nFlows, (int)sizeof(struct cgnapt_table_entry));
+ return -3;
+ }
+
+ return 0;
+}
+
+/**
+ * Function to initialize bulk port allocation data structures
+ * Called during pipeline initialization.
+ *
+ * Creates the port alloc ring for the VNF_set this pipeline belongs
+ *
+ * Creates global port allocation buffer pool
+ *
+ * Initializes the port alloc ring according to config data
+ *
+ * @param p_nat
+ * A pointer to struct pipeline_cgnapt
+ *
+ * @return
+ * 0 on success, negative on error.
+ */
+int napt_port_alloc_init(struct pipeline_cgnapt *p_nat)
+{
+ p_nat->allocated_ports = NULL;
+ p_nat->free_ports = NULL;
+
+ uint32_t vnf_set_num = p_nat->vnf_set;
+ /*uint32_t vnf_set_num = get_vnf_set_num(p_nat->pipeline_num); */
+
+ printf("VNF set number for CGNAPT %d is %d.\n", p_nat->pipeline_num,
+ vnf_set_num);
+ if (vnf_set_num == 0xFF) {
+ printf("VNF set number for CGNAPT %d is invalid %d.\n",
+ p_nat->pipeline_num, vnf_set_num);
+ return -1;
+ }
+
+ p_nat->port_alloc_ring = port_alloc_ring[vnf_set_num];
+ if (p_nat->port_alloc_ring != NULL) {
+ printf("CGNAPT%d port_alloc_ring already exists.\n",
+ p_nat->pipeline_num);
+ return 1;
+ }
+
+ printf("napt_port_alloc_elem_count :%d\n",
+ napt_port_alloc_elem_count);
+ napt_port_alloc_elem_count += 1;
+ napt_port_alloc_elem_count =
+ nextPowerOf2(napt_port_alloc_elem_count);
+ printf("Next power of napt_port_alloc_elem_count: %d\n",
+ napt_port_alloc_elem_count);
+
+ port_alloc_ring[vnf_set_num] =
+ rte_ring_create(napt_port_alloc_ring_name[vnf_set_num],
+ napt_port_alloc_elem_count, rte_socket_id(), 0);
+ p_nat->port_alloc_ring = port_alloc_ring[vnf_set_num];
+ if (p_nat->port_alloc_ring == NULL) {
+ printf("CGNAPT%d - Failed to create port_alloc_ring\n",
+ p_nat->pipeline_num);
+ return -1;
+ }
+
+ /* Create port alloc buffer */
+ /* Only one pool is enough for all vnf sets */
+ if (napt_port_pool == NULL) {
+
+ napt_port_pool = rte_mempool_create(
+ "napt_port_pool",
+ napt_port_alloc_elem_count,
+ sizeof(struct napt_port_alloc_elem),
+ 0, 0, NULL, NULL, NULL,
+ NULL, rte_socket_id(), 0);
+ }
+
+ if (napt_port_pool == NULL) {
+ printf("CGNAPT - Create port pool failed\n");
+ return -1;
+ }
+
+ /* Add all available public IP addresses and ports to the ring */
+ uint32_t i, j = 0;
+
+#ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag) {
+ printf("******* pub_ip_range_count:%d ***********\n",
+ p_nat->pub_ip_range_count);
+ /* Initialize all public IP's addresses */
+ int if_addrs;
+ uint32_t max_ips_remain;
+
+ for (if_addrs = 0; if_addrs < p_nat->pub_ip_range_count;
+ if_addrs++) {
+ /* Add all available addresses to the ring */
+
+ for (i = p_nat->pub_ip_range[if_addrs].start_ip;
+ i <= p_nat->pub_ip_range[if_addrs].end_ip;) {
+ /* 1. Get a port alloc buffer from napt_port_pool */
+ void *portsBuf;
+
+ if (j == 0) {
+ /* get new napt_port_alloc_elem from pool */
+ if (rte_mempool_get(napt_port_pool,
+ &portsBuf) < 0) {
+ printf("CGNAPT - Error in getting port "
+ "alloc buffer\n");
+ return -1;
+ }
+ }
+
+ /* 2. Populate it with available ports and ip addr */
+ struct napt_port_alloc_elem *pb =
+ (struct napt_port_alloc_elem *)portsBuf;
+
+ int temp;
+ temp = p_nat->pub_ip_range[if_addrs].end_ip -
+ i + 1;
+
+ /* Check if remaining port count is greater
+ * than or equals to bulk count, if not give
+ * remaining count ports than giving bulk count
+ */
+ if (temp < NUM_NAPT_PORT_BULK_ALLOC)
+ max_ips_remain = temp;
+ else
+ max_ips_remain =
+ NUM_NAPT_PORT_BULK_ALLOC;
+
+ for (j = 0; j < max_ips_remain; j++) {
+ pb->count = j + 1;
+ pb->ip_addr[j] = i + j;
+ pb->ports[j] = 0;
+ if ((i + j) ==
+ p_nat->pub_ip_range[if_addrs].
+ end_ip)
+ break;
+ }
+
+ /* 3. add the port alloc buffer to ring */
+ if (rte_ring_enqueue(p_nat->port_alloc_ring,
+ portsBuf) != 0) {
+ printf("CGNAPT%d - Enqueue error - i %d,",
+ p_nat->pipeline_num, i);
+ printf("j %d, if_addrs %d, pb %p\n",
+ j, if_addrs, pb);
+ rte_ring_dump(stdout,
+ p_nat->port_alloc_ring);
+ rte_mempool_put(napt_port_pool,
+ portsBuf);
+ return -1;
+ }
+
+ /* reset j and advance i */
+ j = 0;
+ i += max_ips_remain;
+ }
+ }
+
+ return 1;
+ }
+#endif
+
+ printf("******* p_nat->pub_ip_count:%d ***********\n",
+ p_nat->pub_ip_count);
+ /* Initialize all public IP's ports */
+ int if_ports;
+ uint32_t max_ports_remain;
+
+ for (if_ports = 0; if_ports < p_nat->pub_ip_count; if_ports++) {
+ /* Add all available ports to the ring */
+
+ for (i = p_nat->pub_ip_port_set[if_ports].start_port;
+ i <= p_nat->pub_ip_port_set[if_ports].end_port;) {
+ /* 1. Get a port alloc buffer from napt_port_pool */
+ void *portsBuf;
+
+ if (j == 0) {
+ /* get new napt_port_alloc_elem from pool */
+ if (rte_mempool_get(napt_port_pool, &portsBuf) <
+ 0) {
+ printf("CGNAPT - Error in getting "
+ "port alloc buffer\n");
+ return -1;
+ }
+ }
+
+ /* 2. Populate it with available ports and ip addr */
+ struct napt_port_alloc_elem *pb =
+ (struct napt_port_alloc_elem *)portsBuf;
+
+ int temp;
+ temp = p_nat->pub_ip_port_set[if_ports].end_port -
+ i + 1;
+ /* Check if remaining port count is greater
+ * than or equals to bulk count, if not give
+ * remaining count ports than giving bulk count
+ */
+ if (temp < NUM_NAPT_PORT_BULK_ALLOC)
+ max_ports_remain = temp;
+ else
+ max_ports_remain =
+ NUM_NAPT_PORT_BULK_ALLOC;
+
+ for (j = 0; j < max_ports_remain; j++) {
+ pb->count = j + 1;
+ pb->ip_addr[j] =
+ p_nat->pub_ip_port_set[if_ports].ip;
+ pb->ports[j] = i + j;
+ if ((i + j) == p_nat->pub_ip_port_set
+ [if_ports].end_port)
+ break;
+ }
+
+ /* 3. add the port alloc buffer to ring */
+ if (rte_ring_enqueue(p_nat->port_alloc_ring,
+ portsBuf) != 0) {
+ printf("CGNAPT%d - Enqueue error - i %d, j %d, "
+ " if_ports %d, pb %p\n", p_nat->pipeline_num,
+ i, j, if_ports, pb);
+
+ rte_ring_dump(stdout, p_nat->port_alloc_ring);
+ rte_mempool_put(napt_port_pool, portsBuf);
+ return -1;
+ }
+
+ /* reset j and advance i */
+ j = 0;
+ i += max_ports_remain;
+ }
+ }
+
+ return 1;
+}
+
+static pipeline_msg_req_handler handlers[] = {
+ [PIPELINE_MSG_REQ_PING] =
+ pipeline_msg_req_ping_handler,
+ [PIPELINE_MSG_REQ_STATS_PORT_IN] =
+ pipeline_msg_req_stats_port_in_handler,
+ [PIPELINE_MSG_REQ_STATS_PORT_OUT] =
+ pipeline_msg_req_stats_port_out_handler,
+ [PIPELINE_MSG_REQ_STATS_TABLE] = pipeline_msg_req_stats_table_handler,
+ [PIPELINE_MSG_REQ_PORT_IN_ENABLE] =
+ pipeline_msg_req_port_in_enable_handler,
+ [PIPELINE_MSG_REQ_PORT_IN_DISABLE] =
+ pipeline_msg_req_port_in_disable_handler,
+ [PIPELINE_MSG_REQ_CUSTOM] =
+ pipeline_cgnapt_msg_req_custom_handler,
+};
+
+static pipeline_msg_req_handler custom_handlers[] = {
+ [PIPELINE_CGNAPT_MSG_REQ_ENTRY_ADD] =
+ pipeline_cgnapt_msg_req_entry_add_handler,
+ [PIPELINE_CGNAPT_MSG_REQ_ENTRY_DEL] =
+ pipeline_cgnapt_msg_req_entry_del_handler,
+ [PIPELINE_CGNAPT_MSG_REQ_ENTRY_SYNC] =
+ pipeline_cgnapt_msg_req_entry_sync_handler,
+ [PIPELINE_CGNAPT_MSG_REQ_ENTRY_DBG] =
+ pipeline_cgnapt_msg_req_entry_dbg_handler,
+ [PIPELINE_CGNAPT_MSG_REQ_ENTRY_ADDM] =
+ pipeline_cgnapt_msg_req_entry_addm_handler,
+ [PIPELINE_CGNAPT_MSG_REQ_VER] =
+ pipeline_cgnapt_msg_req_ver_handler,
+ [PIPELINE_CGNAPT_MSG_REQ_NSP_ADD] =
+ pipeline_cgnapt_msg_req_nsp_add_handler,
+ [PIPELINE_CGNAPT_MSG_REQ_NSP_DEL] =
+ pipeline_cgnapt_msg_req_nsp_del_handler,
+
+ #ifdef PCP_ENABLE
+ [PIPELINE_CGNAPT_MSG_REQ_PCP] =
+ pipeline_cgnapt_msg_req_pcp_handler,
+ #endif
+};
+
+/**
+ * Function to convert an IPv6 packet to IPv4 packet
+ *
+ * @param pkt
+ * A pointer to packet mbuf
+ * @param in_ipv6_hdr
+ * A pointer to IPv6 header in the given pkt
+ *
+ */
+static void
+convert_ipv6_to_ipv4(struct rte_mbuf *pkt, struct ipv6_hdr *in_ipv6_hdr)
+{
+ uint32_t ip_hdr_offset = MBUF_HDR_ROOM + ETH_HDR_SIZE;
+
+ uint8_t *eth_hdr_p = RTE_MBUF_METADATA_UINT8_PTR(pkt, MBUF_HDR_ROOM);
+ uint8_t *ipv6_hdr_p = RTE_MBUF_METADATA_UINT8_PTR(pkt, ip_hdr_offset);
+
+ struct ether_hdr eth_hdr;
+ struct ipv4_hdr *ipv4_hdr_p;
+ uint16_t frag_off = 0x4000;
+ struct cgnapt_nsp_node *ll = nsp_ll;
+ uint8_t ipv4_dest[4];
+ int nsp = 0;
+
+ memcpy(ð_hdr, eth_hdr_p, sizeof(struct ether_hdr));
+ memcpy(in_ipv6_hdr, ipv6_hdr_p, sizeof(struct ipv6_hdr));
+
+ eth_hdr.ether_type = rte_cpu_to_be_16(ETHER_TYPE_IPv4);
+
+ char *data_area_p = rte_pktmbuf_adj(pkt, 20);
+ if (data_area_p == NULL) {
+ printf("convert_ipv6_to_ipv4:data_area_p is NULL\n");
+ return;
+ }
+ ipv4_hdr_p = (struct ipv4_hdr *)(data_area_p + ETH_HDR_SIZE);
+ memset(ipv4_hdr_p, 0, sizeof(struct ipv4_hdr));
+
+ memcpy(data_area_p, ð_hdr, sizeof(struct ether_hdr));
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG == 1)
+ printf("convert_ipv6_to_ipv4: eth_hdr_p(%p), data_area_p(%p), "
+ "ipv4_hdr_p(%p)\n", eth_hdr_p, data_area_p, ipv4_hdr_p);
+ #endif
+
+ ipv4_hdr_p->version_ihl = 0x4 << 4 | 0x5;
+ ipv4_hdr_p->type_of_service =
+ rte_be_to_cpu_32(in_ipv6_hdr->vtc_flow) & 0x0ff00000 >> 20;
+ ipv4_hdr_p->total_length =
+ rte_cpu_to_be_16(rte_be_to_cpu_16(
+ in_ipv6_hdr->payload_len) + 20);
+ ipv4_hdr_p->packet_id = 0;
+ ipv4_hdr_p->fragment_offset = rte_cpu_to_be_16(frag_off);
+ ipv4_hdr_p->time_to_live = in_ipv6_hdr->hop_limits;
+ ipv4_hdr_p->next_proto_id = in_ipv6_hdr->proto;
+ ipv4_hdr_p->hdr_checksum = 0;
+ ipv4_hdr_p->src_addr = 0;
+
+ while (ll != NULL) {
+ if (!memcmp
+ (&in_ipv6_hdr->dst_addr[0], &ll->nsp.prefix[0],
+ ll->nsp.depth / 8)) {
+ if (ll->nsp.depth == 32)
+ memcpy(&ipv4_dest[0], &in_ipv6_hdr->dst_addr[4],
+ 4);
+ else if (ll->nsp.depth == 40) {
+ ipv4_dest[0] = in_ipv6_hdr->dst_addr[5];
+ ipv4_dest[1] = in_ipv6_hdr->dst_addr[6];
+ ipv4_dest[2] = in_ipv6_hdr->dst_addr[7];
+ ipv4_dest[3] = in_ipv6_hdr->dst_addr[9];
+ } else if (ll->nsp.depth == 48) {
+ ipv4_dest[0] = in_ipv6_hdr->dst_addr[6];
+ ipv4_dest[1] = in_ipv6_hdr->dst_addr[7];
+ ipv4_dest[2] = in_ipv6_hdr->dst_addr[9];
+ ipv4_dest[3] = in_ipv6_hdr->dst_addr[10];
+ } else if (ll->nsp.depth == 56) {
+ ipv4_dest[0] = in_ipv6_hdr->dst_addr[7];
+ ipv4_dest[1] = in_ipv6_hdr->dst_addr[9];
+ ipv4_dest[2] = in_ipv6_hdr->dst_addr[10];
+ ipv4_dest[3] = in_ipv6_hdr->dst_addr[11];
+ } else if (ll->nsp.depth == 64) {
+ ipv4_dest[0] = in_ipv6_hdr->dst_addr[9];
+ ipv4_dest[1] = in_ipv6_hdr->dst_addr[10];
+ ipv4_dest[2] = in_ipv6_hdr->dst_addr[11];
+ ipv4_dest[3] = in_ipv6_hdr->dst_addr[12];
+ } else if (ll->nsp.depth == 96) {
+ ipv4_dest[0] = in_ipv6_hdr->dst_addr[12];
+ ipv4_dest[1] = in_ipv6_hdr->dst_addr[13];
+ ipv4_dest[2] = in_ipv6_hdr->dst_addr[14];
+ ipv4_dest[3] = in_ipv6_hdr->dst_addr[15];
+ }
+
+ nsp = 1;
+ break;
+ }
+
+ ll = ll->next;
+ }
+
+ if (nsp)
+ memcpy(&ipv4_hdr_p->dst_addr, &ipv4_dest[0], 4);
+ else
+ memcpy(&ipv4_hdr_p->dst_addr, &in_ipv6_hdr->dst_addr[12], 4);
+
+}
+
+/**
+ * Function to convert an IPv4 packet to IPv6 packet
+ *
+ * @param pkt
+ * A pointer to packet mbuf
+ * @param in_ipv4_hdr
+ * A pointer to IPv4 header in the given pkt
+ *
+ */
+static void
+convert_ipv4_to_ipv6(struct rte_mbuf *pkt, struct ipv4_hdr *in_ipv4_hdr)
+{
+ uint32_t ip_hdr_offset = MBUF_HDR_ROOM + ETH_HDR_SIZE;
+
+ uint8_t *eth_hdr_p = RTE_MBUF_METADATA_UINT8_PTR(pkt, MBUF_HDR_ROOM);
+ uint8_t *ipv4_hdr_p = RTE_MBUF_METADATA_UINT8_PTR(pkt, ip_hdr_offset);
+
+ struct ether_hdr eth_hdr;
+ struct ipv6_hdr *ipv6_hdr_p;
+
+ memcpy(ð_hdr, eth_hdr_p, sizeof(struct ether_hdr));
+ memcpy(in_ipv4_hdr, ipv4_hdr_p, sizeof(struct ipv4_hdr));
+
+ eth_hdr.ether_type = rte_cpu_to_be_16(ETHER_TYPE_IPv6);
+
+ char *data_area_p = rte_pktmbuf_prepend(pkt, 20);
+ if (data_area_p == NULL) {
+ printf("convert_ipv4_to_ipv6:data_area_p is NULL\n");
+ return;
+ }
+ ipv6_hdr_p = (struct ipv6_hdr *)(data_area_p + ETH_HDR_SIZE);
+ memset(ipv6_hdr_p, 0, sizeof(struct ipv6_hdr));
+
+ memcpy(data_area_p, ð_hdr, sizeof(struct ether_hdr));
+
+ ipv6_hdr_p->vtc_flow =
+ rte_cpu_to_be_32((0x6 << 28) |
+ (in_ipv4_hdr->type_of_service << 20));
+ ipv6_hdr_p->payload_len =
+ rte_cpu_to_be_16(rte_be_to_cpu_16(
+ in_ipv4_hdr->total_length) - 20);
+ ipv6_hdr_p->proto = in_ipv4_hdr->next_proto_id;
+ ipv6_hdr_p->hop_limits = in_ipv4_hdr->time_to_live;
+
+ ipv6_hdr_p->src_addr[0] = 0x00;
+ ipv6_hdr_p->src_addr[1] = 0x64;
+ ipv6_hdr_p->src_addr[2] = 0xff;
+ ipv6_hdr_p->src_addr[3] = 0x9b;
+ ipv6_hdr_p->src_addr[4] = 0x00;
+ ipv6_hdr_p->src_addr[5] = 0x00;
+ ipv6_hdr_p->src_addr[6] = 0x00;
+ ipv6_hdr_p->src_addr[7] = 0x00;
+ ipv6_hdr_p->src_addr[8] = 0x00;
+ ipv6_hdr_p->src_addr[9] = 0x00;
+ ipv6_hdr_p->src_addr[10] = 0x00;
+ ipv6_hdr_p->src_addr[11] = 0x00;
+ memcpy(&ipv6_hdr_p->src_addr[12], &in_ipv4_hdr->src_addr, 4);
+
+ memset(&ipv6_hdr_p->dst_addr, 0, 16);
+
+ return;
+
+}
+
+/**
+ * Output port handler
+ *
+ * @param pkt
+ * A pointer to packet mbuf
+ * @param arg
+ * Unused void pointer
+ *
+ */
+#ifdef PIPELINE_CGNAPT_INSTRUMENTATION
+static void
+pkt_work_cgnapt_out(__rte_unused struct rte_mbuf *pkt, __rte_unused void *arg)
+{
+#ifdef PIPELINE_CGNAPT_INSTRUMENTATION
+ if ((cgnapt_num_func_to_inst == 5)
+ && (cgnapt_inst_index < INST_ARRAY_SIZE)) {
+ if (cgnapt_inst5_flag == 0) {
+ uint8_t *inst5_sig =
+ RTE_MBUF_METADATA_UINT8_PTR(pkt,
+ CGNAPT_INST5_OFST);
+ if (*inst5_sig == CGNAPT_INST5_SIG) {
+ cgnapt_inst5_flag = 1;
+ inst_end_time[cgnapt_inst_index] =
+ rte_get_tsc_cycles();
+ cgnapt_inst_index++;
+ }
+ }
+ }
+#endif
+
+ /* cgnapt_pkt_out_count++; */
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG)
+ print_pkt(pkt);
+ #endif
+}
+#endif
+
+/**
+ * Output port handler to handle 4 pkts
+ *
+ * @param pkt
+ * A pointer to packet mbuf
+ * @param arg
+ * Inport handler argument pointer
+ *
+ */
+#ifdef PIPELINE_CGNAPT_INSTRUMENTATION
+static void pkt4_work_cgnapt_out(struct rte_mbuf **pkt, void *arg)
+{
+ (void)pkt;
+ (void)arg;
+/* TO BE IMPLEMENTED IF REQUIRED */
+}
+#endif
+
+#ifdef PIPELINE_CGNAPT_INSTRUMENTATION
+PIPELINE_CGNAPT_PORT_OUT_AH(port_out_ah_cgnapt,
+ pkt_work_cgnapt_out, pkt4_work_cgnapt_out);
+
+PIPELINE_CGNAPT_PORT_OUT_BAH(port_out_ah_cgnapt_bulk,
+ pkt_work_cgnapt_out, pkt4_work_cgnapt_out);
+#endif
+
+/**
+ * Function to validate the packet and return version
+ *
+ * @param pkt
+ * A pointer to packet mbuf
+ *
+ * @return
+ * IP version of the valid pkt, -1 if invalid pkt
+ */
+int rte_get_pkt_ver(struct rte_mbuf *pkt)
+{
+ uint32_t eth_proto_offset = MBUF_HDR_ROOM + 12;
+ uint16_t *eth_proto =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt, eth_proto_offset);
+
+ if (*eth_proto == rte_be_to_cpu_16(ETHER_TYPE_IPv4))
+ return IP_VERSION_4;
+
+ if (dual_stack_enable
+ && (*eth_proto == rte_be_to_cpu_16(ETHER_TYPE_IPv6)))
+ return IP_VERSION_6;
+
+ /* Check the protocol first, if not UDP or TCP return */
+
+ return -1;
+}
+
+/**
+ * A method to print the NAPT entry
+ *
+ * @param ent
+ * A pointer to struct cgnapt_table_entry
+ */
+void my_print_entry(struct cgnapt_table_entry *ent)
+{
+ printf("CGNAPT key:\n");
+ printf("entry_type :%d\n", ent->data.type);
+ printf("prv_ip: %x %x %x %x\n", ent->data.u.u32_prv_ipv6[0],
+ ent->data.u.u32_prv_ipv6[1], ent->data.u.u32_prv_ipv6[2],
+ ent->data.u.u32_prv_ipv6[3]);
+ printf("prv_port:%d\n", ent->data.prv_port);
+
+ printf("pub_ip:%x\n", ent->data.pub_ip);
+ printf("prv_phy_port:%d\n", ent->data.prv_phy_port);
+ printf("pub_phy_port:%d\n", ent->data.pub_phy_port);
+}
+
+/**
+ * Function to print common CGNAPT table entries
+ *
+ */
+void print_common_table(void)
+{
+ uint32_t count = 0;
+ const void *key;
+ void *data;
+ uint32_t next = 0;
+ int32_t index = 0;
+ do {
+ index = rte_hash_iterate(napt_common_table,
+ &key, &data, &next);
+
+ if ((index != -EINVAL) && (index != -ENOENT)) {
+ printf("\n%04d ", count);
+ //print_key((struct pipeline_cgnapt_entry_key *)key);
+ rte_hexdump(stdout, "KEY", key,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ int32_t position = rte_hash_lookup(
+ napt_common_table, key);
+ print_cgnapt_entry(&napt_hash_tbl_entries[position]);
+ }
+
+ count++;
+ } while (index != -ENOENT);
+}
+
+/**
+ * Input port handler for mixed traffic
+ * This is the main method in this file when running in mixed traffic mode.
+ * Starting from the packet burst it filters unwanted packets,
+ * calculates keys, does lookup and then based on the lookup
+ * updates NAPT table and does packet NAPT translation.
+ *
+ * @param rte_p
+ * A pointer to struct rte_pipeline
+ * @param pkts
+ * A pointer to array of packets mbuf
+ * @param n_pkts
+ * Number of packets in the burst
+ * @param arg
+ * Void pointer
+ *
+ * @return
+ * int that is not checked by caller
+ */
+
+static int cgnapt_in_port_ah_mix(struct rte_pipeline *rte_p,
+ struct rte_mbuf **pkts,
+ uint32_t n_pkts, void *arg)
+{
+/*
+* Code flow
+*
+* 1. Read packet version, if invalid drop the packet
+* 2. Check protocol, if not UDP or TCP drop the packet
+* 3. Bring all valid packets together - useful for bulk lookup
+* and calculate key for all packets
+* a. If IPv4 : calculate key with full IP
+* b. If IPv6 : calculate key with last 32-bit of IP
+* 4. Do bulk lookup with rte_hash_lookup_bulk(), if something went wrong
+* drop all packets
+* 5. For lookup hit packets, read entry from table
+* 6. For lookup miss packets, add dynamic entry to table
+* 7. If pkt is IPv6
+* a. If egress pkt, convert to IPv4 and NAPT it
+* b. If ingress, drop the pkt
+* 8. If pkt is IPv4
+* a. If egress pkt, NAPT it. Get MAC
+* b. If first ingress pkt (with no egress entry), drop the pkt
+* If not first ingress pkt
+* I. If IPv6 converted packet, convert back to IPv6,
+ NAPT it & get MAC
+* II. If IPv4 packet, NAPT it & get MAC
+* 9. Send all packets out to corresponding ports
+*/
+ struct pipeline_cgnapt_in_port_h_arg *ap = arg;
+ struct pipeline_cgnapt *p_nat = ap->p;
+ uint8_t compacting_map[RTE_HASH_LOOKUP_BULK_MAX];
+ uint32_t packets_for_lookup = 0;
+ uint32_t i;
+
+ p_nat->valid_packets = 0;
+ p_nat->invalid_packets = 0;
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 1)
+ printf("cgnapt_key hit fn: %" PRIu32 "\n", n_pkts);
+ #endif
+
+ p_nat->pkt_burst_cnt = 0; /* for dynamic napt */
+
+ uint16_t phy_port = 0;
+ uint16_t *src_port = NULL;
+ uint16_t *dst_port = NULL;
+ uint32_t *src_addr = NULL;
+ uint32_t *dst_addr = NULL;
+ uint8_t *protocol = NULL;
+ uint8_t *eth_dest = NULL;
+ uint8_t *eth_src = NULL;
+ uint16_t src_port_offset = 0;
+ uint16_t dst_port_offset = 0;
+ uint16_t src_addr_offset = 0;
+ uint16_t dst_addr_offset = 0;
+ uint16_t prot_offset = 0;
+ uint16_t eth_offset = 0;
+ int ver = 0;
+
+ enum PKT_TYPE pkt_type = PKT_TYPE_IPV4;
+
+ src_port_offset = SRC_PRT_OFST_IP4_TCP;
+ dst_port_offset = DST_PRT_OFST_IP4_TCP;
+
+ for (i = 0; i < n_pkts; i++) {
+ p_nat->receivedPktCount++;
+
+ /* bitmask representing only this packet */
+ uint64_t pkt_mask = 1LLU << i;
+
+ /* remember this pkt as valid pkt */
+ p_nat->valid_packets |= pkt_mask;
+
+ struct rte_mbuf *pkt = pkts[i];
+
+ if (enable_hwlb)
+ if (!check_arp_icmp(pkt, pkt_mask, p_nat))
+ continue;
+
+ int ver = rte_get_pkt_ver(pkt);
+
+ #ifdef CGNAPT_DBG_PRNT
+ printf("ver no. of the pkt:%d\n", ver);
+ #endif
+
+ if (unlikely(ver < 0)) {
+ /* Not a valid pkt , ignore. */
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount1++;
+ #endif
+ continue;
+ }
+ if (ver == 4)
+ prot_offset = PROT_OFST_IP4;
+ else
+ prot_offset = PROT_OFST_IP6;
+ protocol =
+ (uint8_t *) RTE_MBUF_METADATA_UINT32_PTR(pkt,
+ prot_offset);
+ if (!
+ (*protocol == IP_PROTOCOL_TCP
+ || *protocol == IP_PROTOCOL_UDP
+ || *protocol == IP_PROTOCOL_ICMP)) {
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+ continue;
+ }
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt);
+ #endif
+
+ #ifdef PCP_ENABLE
+ /* Handling PCP
+ * 1. Handel PCP for egress traffic
+ * 2. If PCP, then give response (send pkt) from the same port
+ * 3. Drop the PCP packet, should not be added in the NAPT table
+ */
+ if (pcp_enable) {
+ if (*protocol == IP_PROTOCOL_UDP) {
+ struct udp_hdr *udp;
+ if (ver == 4)
+ udp = (struct udp_hdr *)
+ RTE_MBUF_METADATA_UINT8_PTR(pkt,
+ IPV4_UDP_OFST);
+ else
+ udp = (struct udp_hdr *)
+ RTE_MBUF_METADATA_UINT8_PTR(pkt,
+ IPV6_UDP_OFST);
+
+ if (rte_bswap16(udp->dst_port) ==
+ PCP_SERVER_PORT) {
+ handle_pcp_req(pkt, ver, p_nat);
+ p_nat->invalid_packets |= pkt_mask;
+ continue;
+ }
+ }
+ }
+ #endif
+
+ if (ver == 4) {
+
+ src_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(pkt,
+ SRC_ADR_OFST_IP4);
+ dst_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(pkt,
+ DST_ADR_OFST_IP4);
+
+ if ((*protocol == IP_PROTOCOL_TCP)
+ || (*protocol == IP_PROTOCOL_UDP)) {
+
+ src_port_offset = SRC_PRT_OFST_IP4_TCP;
+ dst_port_offset = DST_PRT_OFST_IP4_TCP;
+
+ } else if (*protocol == IP_PROTOCOL_ICMP) {
+ /* Identifier */
+ src_port_offset = IDEN_OFST_IP4_ICMP;
+ /* Sequence number */
+ dst_port_offset = SEQN_OFST_IP4_ICMP;
+ }
+
+ src_port =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt,
+ src_port_offset);
+ dst_port =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt,
+ dst_port_offset);
+ } else {
+
+ src_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(pkt,
+ SRC_ADR_OFST_IP6);
+ dst_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(pkt,
+ DST_ADR_OFST_IP6);
+ src_port =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt,
+ SRC_PRT_OFST_IP6);
+ dst_port =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt,
+ DST_PRT_OFST_IP6);
+ }
+ /* need to create compacted table of pointers to
+ * pass to bulk lookup
+ */
+
+ compacting_map[packets_for_lookup] = i;
+
+ //phy_port = RTE_MBUF_METADATA_UINT16_PTR(pkt, phyport_offset);
+ phy_port = pkt->port;
+
+ struct pipeline_cgnapt_entry_key key;
+
+ memset(&key, 0, sizeof(struct pipeline_cgnapt_entry_key));
+
+ key.pid = phy_port;
+ if (get_in_port_dir(phy_port)) {
+ /* Egress */
+ if (ver == 4)
+ key.ip = rte_bswap32(*src_addr);
+ else
+ key.ip = rte_bswap32(src_addr[3]);
+ key.port = rte_bswap16(*src_port);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key.port = 0xffff;
+ #endif
+ } else {
+ /* Ingress */
+ key.ip = rte_bswap32(*dst_addr);
+
+ if (*protocol == IP_PROTOCOL_ICMP) {
+ /* common table lookupkey preparation from
+ * incoming ICMP Packet- Indentifier field
+ */
+ key.port = rte_bswap16(*src_port);
+ } else {
+ key.port = rte_bswap16(*dst_port);
+ }
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key.port = 0xffff;
+ #endif
+
+ key.pid = 0xffff;
+ }
+
+ memcpy(&(p_nat->keys[packets_for_lookup]), &key,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->key_ptrs[packets_for_lookup] =
+ &(p_nat->keys[packets_for_lookup]);
+ packets_for_lookup++;
+ }
+
+ if (unlikely(packets_for_lookup == 0)) {
+ /* no suitable packet for lookup */
+ rte_pipeline_ah_packet_drop(rte_p, p_nat->valid_packets);
+ return p_nat->valid_packets;
+ }
+
+ /* lookup entries in the common napt table */
+
+ int lookup_result = rte_hash_lookup_bulk(napt_common_table,
+ (const void **)
+ &p_nat->key_ptrs,
+ packets_for_lookup,
+ &p_nat->lkup_indx[0]);
+
+ if (unlikely(lookup_result < 0)) {
+ /* unknown error, just discard all packets */
+ printf("Unexpected hash lookup error %d, discarding all "
+ "packets", lookup_result);
+ rte_pipeline_ah_packet_drop(rte_p, p_nat->valid_packets);
+ return 0;
+ }
+ //struct rte_pipeline_table_entry *entries[64];
+ /* Now one by one check the result of our bulk lookup */
+
+ for (i = 0; i < packets_for_lookup; i++) {
+ /* index into hash table entries */
+ int hash_table_entry = p_nat->lkup_indx[i];
+ /* index into packet table of this packet */
+ uint8_t pkt_index = compacting_map[i];
+ /*bitmask representing only this packet */
+ uint64_t pkt_mask = 1LLU << pkt_index;
+
+ struct cgnapt_table_entry *entry = NULL;
+ if (hash_table_entry < 0) {
+
+ /* try to add new entry */
+ struct rte_pipeline_table_entry *table_entry = NULL;
+
+ uint64_t dropmask =
+ pkt_miss_cgnapt(p_nat->key_ptrs[i],
+ pkts[pkt_index],
+ &table_entry,
+ &p_nat->valid_packets,
+ pkt_index,
+ (void *)p_nat);
+
+ if (!table_entry) {
+ /* ICMP Error message generation for
+ * Destination Host unreachable
+ */
+ if (*protocol == IP_PROTOCOL_ICMP) {
+ cgnapt_icmp_pkt = pkts[pkt_index];
+ send_icmp_dest_unreachable_msg();
+ }
+
+ /* Drop packet by adding to invalid pkt mask */
+
+ p_nat->invalid_packets |= dropmask;
+ #ifdef CGNAPT_DEBUGGING
+ if (p_nat->kpc2++ < 5) {
+ printf("in_ah Th: %d",
+ p_nat->pipeline_num);
+ print_key(p_nat->key_ptrs[i]);
+ }
+ #endif
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount3++;
+ #endif
+ continue;
+ }
+
+ entry = (struct cgnapt_table_entry *)table_entry;
+ } else {
+ /* entry found for this packet */
+ entry = &napt_hash_tbl_entries[hash_table_entry];
+ }
+
+ /* apply napt and mac changes */
+
+ p_nat->entries[pkt_index] = &(entry->head);
+
+ phy_port = pkts[pkt_index]->port;
+
+ struct ipv6_hdr ipv6_hdr;
+ struct ipv4_hdr ipv4_hdr;
+
+ ver = rte_get_pkt_ver(pkts[pkt_index]);
+ #ifdef CGNAPT_DEBUGGING
+ if (CGNAPT_DEBUG >= 1) {
+ printf("ver:%d\n", ver);
+ printf("entry->data.type:%d\n", entry->data.type);
+ }
+ #endif
+ if ((ver == 6) && (entry->data.type == CGNAPT_ENTRY_IPV6)
+ && is_phy_port_privte(phy_port)) {
+ convert_ipv6_to_ipv4(pkts[pkt_index], &ipv6_hdr);
+
+ pkt_type = PKT_TYPE_IPV6to4;
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG >= 1)
+ printf("pkt_work_cganpt: "
+ "convert_ipv6_to_ipv4\n");
+ #endif
+
+ struct cgnapt_nsp_node *ll = nsp_ll;
+ int nsp = 0;
+ while (ll != NULL) {
+ if (!memcmp(&ipv6_hdr.dst_addr[0],
+ &ll->nsp.prefix[0],
+ ll->nsp.depth / 8)) {
+ nsp = 1;
+ break;
+ }
+ ll = ll->next;
+ }
+
+ if (!nsp
+ && !memcmp(&ipv6_hdr.dst_addr[0],
+ &well_known_prefix[0], 12)) {
+ nsp = 1;
+ }
+
+ if (!nsp) {
+ p_nat->invalid_packets |= 1LLU << pkt_index;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount5++;
+ #endif
+ continue;
+ }
+
+ }
+
+ /* As packet is already converted into IPv4 we must not operate
+ * IPv6 offsets on packet
+ * Only perform IPv4 operations
+ */
+
+ if (ver == 6) {
+
+ src_port_offset = SRC_PRT_OFST_IP6t4;
+ dst_port_offset = DST_PRT_OFST_IP6t4;
+ src_addr_offset = SRC_ADR_OFST_IP6t4;
+ dst_addr_offset = DST_ADR_OFST_IP6t4;
+ prot_offset = PROT_OFST_IP6t4;
+ eth_offset = ETH_OFST_IP6t4;
+
+ } else {
+
+ if ((*protocol == IP_PROTOCOL_TCP)
+ || (*protocol == IP_PROTOCOL_UDP)) {
+ src_port_offset = SRC_PRT_OFST_IP4_TCP;
+ dst_port_offset = DST_PRT_OFST_IP4_TCP;
+ } else if (*protocol == IP_PROTOCOL_ICMP) {
+ /* Identifier */
+ src_port_offset = IDEN_OFST_IP4_ICMP;
+ /* Sequence number */
+ dst_port_offset = SEQN_OFST_IP4_ICMP;
+ }
+
+ src_addr_offset = SRC_ADR_OFST_IP4;
+ dst_addr_offset = DST_ADR_OFST_IP4;
+ prot_offset = PROT_OFST_IP4;
+ eth_offset = MBUF_HDR_ROOM;
+
+ }
+
+ src_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(pkts[pkt_index],
+ src_addr_offset);
+ dst_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(pkts[pkt_index],
+ dst_addr_offset);
+ src_port =
+ RTE_MBUF_METADATA_UINT16_PTR(pkts[pkt_index],
+ src_port_offset);
+ dst_port =
+ RTE_MBUF_METADATA_UINT16_PTR(pkts[pkt_index],
+ dst_port_offset);
+ protocol =
+ RTE_MBUF_METADATA_UINT8_PTR(pkts[pkt_index],
+ prot_offset);
+
+ eth_dest =
+ RTE_MBUF_METADATA_UINT8_PTR(pkts[pkt_index],
+ eth_offset);
+ eth_src =
+ RTE_MBUF_METADATA_UINT8_PTR(pkts[pkt_index],
+ eth_offset + 6);
+
+ if (entry->data.ttl == NAPT_ENTRY_STALE)
+ entry->data.ttl = NAPT_ENTRY_VALID;
+
+ struct ether_addr hw_addr;
+ uint32_t dest_address = 0;
+ uint8_t nh_ipv6[16];
+ uint32_t nhip = 0;
+
+ uint32_t dest_if = 0xff;
+ uint32_t ret;
+
+ uint16_t *outport_id =
+ RTE_MBUF_METADATA_UINT16_PTR(pkts[pkt_index],
+ cgnapt_meta_offset);
+
+ if (is_phy_port_privte(phy_port)) {
+
+ if (*protocol == IP_PROTOCOL_UDP
+ && rte_be_to_cpu_16(*dst_port) == 53) {
+ p_nat->invalid_packets |= 1LLU << pkt_index;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ continue;
+ }
+
+ dest_address = rte_bswap32(*dst_addr);
+ ret = local_get_nh_ipv4(dest_address, &dest_if,
+ &nhip, p_nat);
+ if (!ret) {
+ dest_if = get_prv_to_pub_port(&dest_address,
+ IP_VERSION_4);
+ if (dest_if == INVALID_DESTIF) {
+ p_nat->invalid_packets |=
+ 1LLU << pkt_index;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ continue;
+ }
+ do_local_nh_ipv4_cache(dest_if, p_nat);
+ }
+
+ *outport_id = p_nat->outport_id[dest_if];
+ int ret;
+ ret = get_dest_mac_addr_port(dest_address,
+ &dest_if, &hw_addr);
+
+ if (ret == ARP_FOUND) {
+ memcpy(eth_dest, &hw_addr,
+ sizeof(struct ether_addr));
+ memcpy(eth_src, get_link_hw_addr(dest_if),
+ sizeof(struct ether_addr));
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("MAC found for ip 0x%x, port %d - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ dest_address, *outport_id,
+ hw_addr.addr_bytes[0], hw_addr.addr_bytes[1],
+ hw_addr.addr_bytes[2], hw_addr.addr_bytes[3],
+ hw_addr.addr_bytes[4], hw_addr.addr_bytes[5]);
+
+ printf("Dest MAC before - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ eth_dest[0], eth_dest[1], eth_dest[2],
+ eth_dest[3], eth_dest[4], eth_dest[5]);
+ }
+ #endif
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("Dest MAC after - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ eth_dest[0], eth_dest[1], eth_dest[2],
+ eth_dest[3], eth_dest[4], eth_dest[5]);
+ }
+ #endif
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkts[pkt_index]);
+ #endif
+
+ } else{
+ if (ret == ARP_NOT_FOUND) {
+ /* Commented code may be required
+ * for future use, Please keep it */
+ //request_arp(*outport_id, nhip,
+ // p_nat->p.p);
+ printf("%s: ARP Not Found, nhip: %x, "
+ "outport_id: %d\n", __func__, nhip,
+ *outport_id);
+ }
+
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ continue;
+ }
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2)
+ printf("Egress: \tphy_port:%d\t "
+ "get_prv_to_pub():%d \tout_port:%d\n",
+ phy_port, dest_if,
+ *outport_id);
+ #endif
+
+ /* Egress */
+ *src_addr = rte_bswap32(entry->data.pub_ip);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (!nat_only_config_flag) {
+ #endif
+ *src_port = rte_bswap16(entry->data.pub_port);
+ #ifdef NAT_ONLY_CONFIG_REQ
+ }
+ #endif
+
+ p_nat->enaptedPktCount++;
+ } else {
+ /* Ingress */
+ if (*protocol == IP_PROTOCOL_UDP
+ && rte_be_to_cpu_16(*src_port) == 53) {
+ p_nat->invalid_packets |= 1LLU << pkt_index;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ continue;
+ }
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2)
+ printf("Ingress: \tphy_port:%d\t "
+ "get_pub_to_prv():%d \tout_port%d\n",
+ phy_port, dest_if,
+ *outport_id);
+ #endif
+
+ if (entry->data.type == CGNAPT_ENTRY_IPV6) {
+ convert_ipv4_to_ipv6(pkts[pkt_index],
+ &ipv4_hdr);
+ pkt_type = PKT_TYPE_IPV4to6;
+ /* Ethernet MTU check */
+ if ((rte_pktmbuf_data_len(pkts[pkt_index]) -
+ 14) > 1500) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ continue;
+ }
+
+ eth_dest = eth_dest - 20;
+ eth_src = eth_src - 20;
+
+ dst_port_offset = DST_PRT_OFST_IP4t6;
+ dst_addr_offset = DST_ADR_OFST_IP4t6;
+ dst_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(
+ pkts[pkt_index],
+ dst_addr_offset);
+ dst_port =
+ RTE_MBUF_METADATA_UINT16_PTR(
+ pkts[pkt_index],
+ dst_port_offset);
+
+ memcpy((uint8_t *) &dst_addr[0],
+ &entry->data.u.prv_ipv6[0], 16);
+ memset(nh_ipv6, 0, 16);
+
+ ret = local_get_nh_ipv6((uint8_t *)&dst_addr[0],
+ &dest_if, &nh_ipv6[0], p_nat);
+
+ if (!ret) {
+ dest_if = get_prv_to_pub_port(
+ &dst_addr[0],
+ IP_VERSION_6);
+ if (dest_if == INVALID_DESTIF) {
+ p_nat->invalid_packets |=
+ 1LLU << pkt_index;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ continue;
+ }
+ do_local_nh_ipv6_cache(dest_if, p_nat);
+ }
+ *outport_id = p_nat->outport_id[dest_if];
+
+ if (get_dest_mac_address_ipv6_port((uint8_t *)
+ &dst_addr[0], &dest_if,
+ &hw_addr, &nh_ipv6[0])){
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("MAC found for ip 0x%x, port %d - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ dest_address, *outport_id,
+ hw_addr.addr_bytes[0],
+ hw_addr.addr_bytes[1], hw_addr.addr_bytes[2],
+ hw_addr.addr_bytes[3], hw_addr.addr_bytes[4],
+ hw_addr.addr_bytes[5]);
+
+ printf("Dest MAC before - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ eth_dest[0], eth_dest[1], eth_dest[2],
+ eth_dest[3], eth_dest[4], eth_dest[5]);
+ }
+ #endif
+ memcpy(eth_dest, &hw_addr,
+ sizeof(struct ether_addr));
+ memcpy(eth_src, get_link_hw_addr(
+ dest_if),
+ sizeof(struct ether_addr));
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("Dest MAC after - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ eth_dest[0], eth_dest[1], eth_dest[2],
+ eth_dest[3], eth_dest[4], eth_dest[5]);
+ }
+ #endif
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkts[pkt_index]);
+ #endif
+ } else {
+
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ continue;
+ }
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (!nat_only_config_flag) {
+ #endif
+ *dst_port =
+ rte_bswap16(entry->data.prv_port);
+ #ifdef NAT_ONLY_CONFIG_REQ
+ }
+ #endif
+
+ } else {
+ *dst_addr = rte_bswap32(entry->data.u.prv_ip);
+ dest_address = entry->data.u.prv_ip;
+ ret = local_get_nh_ipv4(dest_address, &dest_if,
+ &nhip, p_nat);
+ if (!ret) {
+ dest_if = get_pub_to_prv_port(
+ &dest_address, IP_VERSION_4);
+ if (dest_if == INVALID_DESTIF) {
+ p_nat->invalid_packets |=
+ 1LLU << pkt_index;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ continue;
+ }
+ do_local_nh_ipv4_cache(dest_if, p_nat);
+ };
+
+ *outport_id = p_nat->outport_id[dest_if];
+ int ret;
+ ret = get_dest_mac_addr_port(dest_address,
+ &dest_if, &hw_addr);
+
+ if (ret == ARP_FOUND) {
+ memcpy(eth_dest, &hw_addr,
+ sizeof(struct ether_addr));
+ memcpy(eth_src, get_link_hw_addr(
+ dest_if),
+ sizeof(struct ether_addr));
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("MAC found for ip 0x%x, port %d - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ dest_address, *outport_id,
+ hw_addr.addr_bytes[0], hw_addr.addr_bytes[1],
+ hw_addr.addr_bytes[2], hw_addr.addr_bytes[3],
+ hw_addr.addr_bytes[4], hw_addr.addr_bytes[5]);
+
+ printf("Dest MAC before - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ eth_dest[0], eth_dest[1], eth_dest[2],
+ eth_dest[3], eth_dest[4], eth_dest[5]);
+ }
+ #endif
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("Dest MAC after - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ eth_dest[0], eth_dest[1], eth_dest[2],
+ eth_dest[3], eth_dest[4], eth_dest[5]);
+ }
+ #endif
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkts[pkt_index]);
+ #endif
+
+ } else {
+ if (ret == ARP_NOT_FOUND) {
+ printf("%s: ARP Not Found, nhip: %x, "
+ "outport_id: %d\n", __func__, nhip,
+ *outport_id);
+ }
+ //request_arp(*outport_id,
+ // nhip, p_nat->p.p);
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ continue;
+ }
+
+ if (*protocol == IP_PROTOCOL_ICMP) {
+ // Query ID reverse translation done here
+ *src_port =
+ rte_bswap16(entry->data.prv_port);
+ } else {
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (!nat_only_config_flag) {
+ #endif
+ *dst_port =
+ rte_bswap16(entry->
+ data.prv_port);
+ #ifdef NAT_ONLY_CONFIG_REQ
+ }
+ #endif
+ }
+ }
+
+ p_nat->inaptedPktCount++;
+ }
+
+ p_nat->naptedPktCount++;
+
+ #ifdef HW_CHECKSUM_REQ
+ if (p_nat->hw_checksum_reqd)
+ hw_checksum(pkts[pkt_index], pkt_type);
+ else
+ #endif
+ sw_checksum(pkts[pkt_index], pkt_type);
+ }
+
+ if (p_nat->invalid_packets) {
+ /* get rid of invalid packets */
+ rte_pipeline_ah_packet_drop(rte_p, p_nat->invalid_packets);
+
+ p_nat->valid_packets &= ~(p_nat->invalid_packets);
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 1) {
+ printf("valid_packets:0x%jx\n", p_nat->valid_packets);
+ printf("rte_valid_packets :0x%jx\n", rte_p->pkts_mask);
+ printf("invalid_packets:0x%jx\n",
+ p_nat->invalid_packets);
+ printf("rte_invalid_packets :0x%jx\n",
+ rte_p->pkts_drop_mask);
+ printf("Total pkts dropped :0x%jx\n",
+ rte_p->n_pkts_ah_drop);
+ }
+ #endif
+ }
+
+ return p_nat->valid_packets;
+}
+
+/**
+ * Input port handler for IPv4 private traffic
+ * Starting from the packet burst it filters unwanted packets,
+ * calculates keys, does lookup and then based on the lookup
+ * updates NAPT table and does packet NAPT translation.
+ *
+ * @param rte_p
+ * A pointer to struct rte_pipeline
+ * @param pkts
+ * A pointer to array of packets mbuf
+ * @param n_pkts
+ * Number of packets in the burst
+ * @param arg
+ * Void pointer
+ *
+ * @return
+ * int that is not checked by caller
+ */
+
+static int cgnapt_in_port_ah_ipv4_prv(struct rte_pipeline *rte_p,
+ struct rte_mbuf **pkts,
+ uint32_t n_pkts, void *arg)
+{
+ uint32_t i, j;
+ struct pipeline_cgnapt_in_port_h_arg *ap = arg;
+ struct pipeline_cgnapt *p_nat = ap->p;
+
+ #ifdef CGNAPT_TIMING_INST
+ uint64_t entry_timestamp = 0, exit_timestamp;
+
+ if (p_nat->time_measurements_on) {
+ entry_timestamp = rte_get_tsc_cycles();
+ /* check since exit ts not valid first time through */
+ if (likely(p_nat->in_port_exit_timestamp))
+ p_nat->external_time_sum +=
+ entry_timestamp - p_nat->in_port_exit_timestamp;
+ }
+ #endif
+
+ p_nat->pkt_burst_cnt = 0; /* for dynamic napt */
+ p_nat->valid_packets = rte_p->pkts_mask; /*n_pkts; */
+ p_nat->invalid_packets = 0;
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 1)
+ printf("cgnapt_key hit fn: %" PRIu32 "\n", n_pkts);
+ #endif
+
+ /* prefetching for mbufs should be done here */
+ for (j = 0; j < n_pkts; j++)
+ rte_prefetch0(pkts[j]);
+
+ for (i = 0; i < (n_pkts & (~0x3LLU)); i += 4)
+ pkt4_work_cgnapt_key_ipv4_prv(&pkts[i], i, arg, p_nat);
+
+ for (; i < n_pkts; i++)
+ pkt_work_cgnapt_key_ipv4_prv(pkts[i], i, arg, p_nat);
+
+ p_nat->valid_packets &= ~(p_nat->invalid_packets);
+
+ if (unlikely(p_nat->valid_packets == 0)) {
+ /* no suitable packet for lookup */
+ rte_pipeline_ah_packet_drop(rte_p, p_nat->invalid_packets);
+ return p_nat->valid_packets;
+ }
+
+ /* lookup entries in the common napt table */
+
+ int lookup_result = rte_hash_lookup_bulk(
+ napt_common_table,
+ (const void **)&p_nat->key_ptrs,
+ /* should be minus num invalid pkts */
+ n_pkts,
+ /*new pipeline data member */
+ &p_nat->lkup_indx[0]);
+
+ if (unlikely(lookup_result < 0)) {
+ /* unknown error, just discard all packets */
+ printf("Unexpected hash lookup error %d, discarding "
+ "all packets", lookup_result);
+ rte_pipeline_ah_packet_drop(rte_p, p_nat->valid_packets);
+ return 0;
+ }
+
+ /* Now call second stage of pipeline to one by one
+ * check the result of our bulk lookup
+ */
+
+ /* prefetching for table entries should be done here */
+ for (j = 0; j < n_pkts; j++) {
+ if (p_nat->lkup_indx[j] >= 0)
+ rte_prefetch0(&napt_hash_tbl_entries
+ [p_nat->lkup_indx[j]]);
+ }
+
+ for (i = 0; i < (n_pkts & (~0x3LLU)); i += 4)
+ pkt4_work_cgnapt_ipv4_prv(pkts, i, arg, p_nat);
+
+ for (; i < n_pkts; i++)
+ pkt_work_cgnapt_ipv4_prv(pkts, i, arg, p_nat);
+
+ if (p_nat->invalid_packets) {
+ /* get rid of invalid packets */
+ rte_pipeline_ah_packet_drop(rte_p, p_nat->invalid_packets);
+
+ p_nat->valid_packets &= ~(p_nat->invalid_packets);
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 1) {
+ printf("valid_packets:0x%jx\n", p_nat->valid_packets);
+ printf("rte_valid_packets :0x%jx\n", rte_p->pkts_mask);
+ printf("invalid_packets:0x%jx\n",
+ p_nat->invalid_packets);
+ printf("rte_invalid_packets :0x%jx\n",
+ rte_p->pkts_drop_mask);
+ printf("Total pkts dropped :0x%jx\n",
+ rte_p->n_pkts_ah_drop);
+ }
+ #endif
+ }
+
+ #ifdef CGNAPT_TIMING_INST
+ if (p_nat->time_measurements_on) {
+ exit_timestamp = rte_get_tsc_cycles();
+ p_nat->in_port_exit_timestamp = exit_timestamp;
+ p_nat->internal_time_sum += exit_timestamp - entry_timestamp;
+ p_nat->time_measurements++;
+ if (p_nat->time_measurements == p_nat->max_time_mesurements)
+ p_nat->time_measurements_on = 0;
+ }
+ #endif
+
+ return p_nat->valid_packets;
+}
+
+/**
+ * Input port handler for IPv4 public traffic
+ * Starting from the packet burst it filters unwanted packets,
+ * calculates keys, does lookup and then based on the lookup
+ * updates NAPT table and does packet NAPT translation.
+ *
+ * @param rte_p
+ * A pointer to struct rte_pipeline
+ * @param pkts
+ * A pointer to array of packets mbuf
+ * @param n_pkts
+ * Number of packets in the burst
+ * @param arg
+ * Void pointer
+ *
+ * @return
+ * int that is not checked by caller
+ */
+static int cgnapt_in_port_ah_ipv4_pub(struct rte_pipeline *rte_p,
+ struct rte_mbuf **pkts,
+ uint32_t n_pkts, void *arg)
+{
+ uint32_t i, j;
+ struct pipeline_cgnapt_in_port_h_arg *ap = arg;
+ struct pipeline_cgnapt *p_nat = ap->p;
+
+ #ifdef CGNAPT_TIMING_INST
+ uint64_t entry_timestamp = 0, exit_timestamp;
+
+ if (p_nat->time_measurements_on) {
+ entry_timestamp = rte_get_tsc_cycles();
+
+ /* check since exit ts not valid first time through */
+ if (likely(p_nat->in_port_exit_timestamp))
+ p_nat->external_time_sum +=
+ entry_timestamp - p_nat->in_port_exit_timestamp;
+ }
+ #endif
+
+ p_nat->pkt_burst_cnt = 0; /* for dynamic napt */
+ p_nat->valid_packets = rte_p->pkts_mask; /*n_pkts; */
+ p_nat->invalid_packets = 0;
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 1)
+ printf("cgnapt_key hit fn: %" PRIu32 "\n", n_pkts);
+ #endif
+
+ /* prefetching for mbufs should be done here */
+ for (j = 0; j < n_pkts; j++)
+ rte_prefetch0(pkts[j]);
+
+ for (i = 0; i < (n_pkts & (~0x3LLU)); i += 4)
+ pkt4_work_cgnapt_key_ipv4_pub(&pkts[i], i, arg, p_nat);
+
+ for (; i < n_pkts; i++)
+ pkt_work_cgnapt_key_ipv4_pub(pkts[i], i, arg, p_nat);
+
+ p_nat->valid_packets &= ~(p_nat->invalid_packets);
+
+ if (unlikely(p_nat->valid_packets == 0)) {
+ /* no suitable packet for lookup */
+ rte_pipeline_ah_packet_drop(rte_p, p_nat->invalid_packets);
+ return p_nat->valid_packets;
+ }
+
+ /* lookup entries in the common napt table */
+
+ int lookup_result = rte_hash_lookup_bulk(
+ napt_common_table,
+ (const void **)&p_nat->key_ptrs,
+ /* should be minus num invalid pkts */
+ n_pkts,
+ /*new pipeline data member */
+ &p_nat->lkup_indx[0]);
+
+ if (unlikely(lookup_result < 0)) {
+ /* unknown error, just discard all packets */
+ printf("Unexpected hash lookup error %d, discarding "
+ "all packets", lookup_result);
+ rte_pipeline_ah_packet_drop(rte_p, p_nat->valid_packets);
+ return 0;
+ }
+
+ /* Now call second stage of pipeline to one by one
+ * check the result of our bulk lookup
+ */
+
+ /* prefetching for table entries should be done here */
+ for (j = 0; j < n_pkts; j++) {
+ if (p_nat->lkup_indx[j] >= 0)
+ rte_prefetch0(&napt_hash_tbl_entries
+ [p_nat->lkup_indx[j]]);
+ }
+
+ for (i = 0; i < (n_pkts & (~0x3LLU)); i += 4)
+ pkt4_work_cgnapt_ipv4_pub(pkts, i, arg, p_nat);
+
+ for (; i < n_pkts; i++)
+ pkt_work_cgnapt_ipv4_pub(pkts, i, arg, p_nat);
+
+ if (p_nat->invalid_packets) {
+ /* get rid of invalid packets */
+ rte_pipeline_ah_packet_drop(rte_p, p_nat->invalid_packets);
+
+ p_nat->valid_packets &= ~(p_nat->invalid_packets);
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 1) {
+ printf("valid_packets:0x%jx\n", p_nat->valid_packets);
+ printf("rte_valid_packets :0x%jx\n", rte_p->pkts_mask);
+ printf("invalid_packets:0x%jx\n",
+ p_nat->invalid_packets);
+ printf("rte_invalid_packets :0x%jx\n",
+ rte_p->pkts_drop_mask);
+ printf("Total pkts dropped :0x%jx\n",
+ rte_p->n_pkts_ah_drop);
+ }
+ #endif
+ }
+
+ #ifdef CGNAPT_TIMING_INST
+ if (p_nat->time_measurements_on) {
+ exit_timestamp = rte_get_tsc_cycles();
+ p_nat->in_port_exit_timestamp = exit_timestamp;
+
+ p_nat->internal_time_sum += exit_timestamp - entry_timestamp;
+ p_nat->time_measurements++;
+ if (p_nat->time_measurements == p_nat->max_time_mesurements)
+ p_nat->time_measurements_on = 0;
+ }
+ #endif
+
+ return p_nat->valid_packets;
+}
+
+/**
+ * NAPT key calculation function for IPv4 private traffic
+ * which handles 4 pkts
+ *
+ * @param pkt
+ * A pointer to array of packets mbuf
+ * @param in_pkt_num
+ * Starting pkt number of pkts
+ * @param arg
+ * Void pointer
+ * @param p_nat
+ * A pointer to main CGNAPT structure
+ *
+ */
+void
+pkt4_work_cgnapt_key_ipv4_prv(
+ struct rte_mbuf **pkt,
+ uint32_t pkt_num,
+ __rte_unused void *arg,
+ struct pipeline_cgnapt *p_nat)
+{
+ p_nat->receivedPktCount += 4;
+ /* bitmask representing only this packet */
+ uint64_t pkt_mask0 = 1LLU << pkt_num;
+ uint64_t pkt_mask1 = 1LLU << (pkt_num + 1);
+ uint64_t pkt_mask2 = 1LLU << (pkt_num + 2);
+ uint64_t pkt_mask3 = 1LLU << (pkt_num + 3);
+
+ uint8_t protocol0 = RTE_MBUF_METADATA_UINT8(pkt[0],
+ PROT_OFST_IP4);
+ uint8_t protocol1 = RTE_MBUF_METADATA_UINT8(pkt[1],
+ PROT_OFST_IP4);
+ uint8_t protocol2 = RTE_MBUF_METADATA_UINT8(pkt[2],
+ PROT_OFST_IP4);
+ uint8_t protocol3 = RTE_MBUF_METADATA_UINT8(pkt[3],
+ PROT_OFST_IP4);
+
+ uint32_t src_addr0 = RTE_MBUF_METADATA_UINT32(pkt[0],
+ SRC_ADR_OFST_IP4);
+ uint32_t src_addr1 = RTE_MBUF_METADATA_UINT32(pkt[1],
+ SRC_ADR_OFST_IP4);
+ uint32_t src_addr2 = RTE_MBUF_METADATA_UINT32(pkt[2],
+ SRC_ADR_OFST_IP4);
+ uint32_t src_addr3 = RTE_MBUF_METADATA_UINT32(pkt[3],
+ SRC_ADR_OFST_IP4);
+
+ uint16_t src_port_offset0;
+ uint16_t src_port_offset1;
+ uint16_t src_port_offset2;
+ uint16_t src_port_offset3;
+
+ uint16_t src_port0;
+ uint16_t src_port1;
+ uint16_t src_port2;
+ uint16_t src_port3;
+
+ uint16_t phy_port0 = pkt[0]->port;
+ uint16_t phy_port1 = pkt[1]->port;
+ uint16_t phy_port2 = pkt[2]->port;
+ uint16_t phy_port3 = pkt[3]->port;
+
+ struct pipeline_cgnapt_entry_key key0;
+ struct pipeline_cgnapt_entry_key key1;
+ struct pipeline_cgnapt_entry_key key2;
+ struct pipeline_cgnapt_entry_key key3;
+
+ memset(&key0, 0, sizeof(struct pipeline_cgnapt_entry_key));
+ memset(&key1, 0, sizeof(struct pipeline_cgnapt_entry_key));
+ memset(&key2, 0, sizeof(struct pipeline_cgnapt_entry_key));
+ memset(&key3, 0, sizeof(struct pipeline_cgnapt_entry_key));
+
+/* --0-- */
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt[0]);
+ #endif
+
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt[0], pkt_mask0, p_nat))
+ goto PKT1;
+ }
+
+ switch (protocol0) {
+ case IP_PROTOCOL_UDP:
+ {
+ #ifdef PCP_ENABLE
+ if (pcp_enable) {
+ struct udp_hdr *udp;
+
+ udp = (struct udp_hdr *)
+ RTE_MBUF_METADATA_UINT8_PTR(pkt[0],
+ IPV4_UDP_OFST);
+
+ if (rte_bswap16(udp->dst_port) ==
+ PCP_SERVER_PORT) {
+ handle_pcp_req(pkt[0], IPV4_SZ, p_nat);
+ p_nat->invalid_packets |= pkt_mask0;
+ goto PKT1;
+ }
+ }
+ #endif
+ }
+ case IP_PROTOCOL_TCP:
+
+ src_port_offset0 = SRC_PRT_OFST_IP4_TCP;
+ src_port0 = RTE_MBUF_METADATA_UINT16(pkt[0],
+ src_port_offset0);
+
+ break;
+
+ case IP_PROTOCOL_ICMP:
+ /* Identifier */
+ src_port_offset0 = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 4;
+ src_port0 = RTE_MBUF_METADATA_UINT16(pkt[0],
+ src_port_offset0);
+
+ break;
+
+ default:
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask0;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+ goto PKT1;
+ }
+
+ key0.pid = phy_port0;
+ key0.ip = rte_bswap32(src_addr0);
+ key0.port = rte_bswap16(src_port0);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key0.port = 0xffff;
+ #endif
+
+ memcpy(&p_nat->keys[pkt_num], &key0,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->key_ptrs[pkt_num] = &p_nat->keys[pkt_num];
+
+/* --1-- */
+PKT1:
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt[1]);
+ #endif
+
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt[1], pkt_mask1, p_nat))
+ goto PKT2;
+ }
+ switch (protocol1) {
+ case IP_PROTOCOL_UDP:
+ {
+ #ifdef PCP_ENABLE
+ if (pcp_enable) {
+ struct udp_hdr *udp;
+
+ udp = (struct udp_hdr *)
+ RTE_MBUF_METADATA_UINT8_PTR(pkt[1],
+ IPV4_UDP_OFST);
+
+ if (rte_bswap16(udp->dst_port) ==
+ PCP_SERVER_PORT) {
+ handle_pcp_req(pkt[1], IPV4_SZ, p_nat);
+ p_nat->invalid_packets |= pkt_mask1;
+ goto PKT2;
+ }
+ }
+ #endif
+ }
+ case IP_PROTOCOL_TCP:
+
+ src_port_offset1 = SRC_PRT_OFST_IP4_TCP;
+ src_port1 = RTE_MBUF_METADATA_UINT16(pkt[1],
+ src_port_offset1);
+
+ break;
+
+ case IP_PROTOCOL_ICMP:
+ /* Identifier */
+ src_port_offset1 = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 4;
+ src_port1 = RTE_MBUF_METADATA_UINT16(pkt[1],
+ src_port_offset1);
+
+ break;
+
+ default:
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask1;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+ goto PKT2;
+ }
+
+ key1.pid = phy_port1;
+ key1.ip = rte_bswap32(src_addr1);
+ key1.port = rte_bswap16(src_port1);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key1.port = 0xffff;
+ #endif
+
+ memcpy(&p_nat->keys[pkt_num + 1], &key1,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->key_ptrs[pkt_num + 1] = &p_nat->keys[pkt_num + 1];
+
+/* --2-- */
+PKT2:
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt[2]);
+ #endif
+
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt[2], pkt_mask2, p_nat))
+ goto PKT3;
+ }
+
+ switch (protocol2) {
+ case IP_PROTOCOL_UDP:
+ {
+ #ifdef PCP_ENABLE
+ if (pcp_enable) {
+ struct udp_hdr *udp;
+
+ udp = (struct udp_hdr *)
+ RTE_MBUF_METADATA_UINT8_PTR(pkt[2],
+ IPV4_UDP_OFST);
+
+ if (rte_bswap16(udp->dst_port) ==
+ PCP_SERVER_PORT) {
+ handle_pcp_req(pkt[2], IPV4_SZ, p_nat);
+ p_nat->invalid_packets |= pkt_mask2;
+ goto PKT3;
+ }
+ }
+ #endif
+ }
+ case IP_PROTOCOL_TCP:
+
+ src_port_offset2 = SRC_PRT_OFST_IP4_TCP;
+ src_port2 = RTE_MBUF_METADATA_UINT16(pkt[2],
+ src_port_offset2);
+
+ break;
+
+ case IP_PROTOCOL_ICMP:
+ /* Identifier */
+ src_port_offset2 = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 4;
+ src_port2 = RTE_MBUF_METADATA_UINT16(pkt[2],
+ src_port_offset2);
+
+ break;
+
+ default:
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask2;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+ goto PKT3;
+ }
+
+ key2.pid = phy_port2;
+ key2.ip = rte_bswap32(src_addr2);
+ key2.port = rte_bswap16(src_port2);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key2.port = 0xffff;
+ #endif
+
+ memcpy(&p_nat->keys[pkt_num + 2], &key2,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->key_ptrs[pkt_num + 2] = &p_nat->keys[pkt_num + 2];
+
+/* --3-- */
+PKT3:
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt[3]);
+ #endif
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt[3], pkt_mask3, p_nat))
+ return;
+ }
+
+ switch (protocol3) {
+ case IP_PROTOCOL_UDP:
+ {
+ #ifdef PCP_ENABLE
+ if (pcp_enable) {
+ struct udp_hdr *udp;
+
+ udp = (struct udp_hdr *)
+ RTE_MBUF_METADATA_UINT8_PTR(pkt[3],
+ IPV4_UDP_OFST);
+
+ if (rte_bswap16(udp->dst_port) ==
+ PCP_SERVER_PORT) {
+ handle_pcp_req(pkt[3], IPV4_SZ, p_nat);
+ p_nat->invalid_packets |= pkt_mask3;
+ return;
+ }
+ }
+ #endif
+ }
+ case IP_PROTOCOL_TCP:
+
+ src_port_offset3 = SRC_PRT_OFST_IP4_TCP;
+ src_port3 = RTE_MBUF_METADATA_UINT16(pkt[3],
+ src_port_offset3);
+
+ break;
+
+ case IP_PROTOCOL_ICMP:
+ /* Identifier */
+ src_port_offset3 = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 4;
+ src_port3 = RTE_MBUF_METADATA_UINT16(pkt[3],
+ src_port_offset3);
+
+ break;
+
+ default:
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask3;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+ return;
+ }
+
+ key3.pid = phy_port3;
+ key3.ip = rte_bswap32(src_addr3);
+ key3.port = rte_bswap16(src_port3);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key3.port = 0xffff;
+ #endif
+
+ memcpy(&p_nat->keys[pkt_num + 3], &key3,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->key_ptrs[pkt_num + 3] = &p_nat->keys[pkt_num + 3];
+}
+
+/**
+ * NAPT key calculation function for IPv4 public traffic
+ * which handles 4 pkts
+ *
+ * @param pkt
+ * A pointer to array of packets mbuf
+ * @param in_pkt_num
+ * Starting pkt number of pkts
+ * @param arg
+ * Void pointer
+ * @param p_nat
+ * A pointer to main CGNAPT structure
+ *
+ */
+void
+pkt4_work_cgnapt_key_ipv4_pub(
+ struct rte_mbuf **pkt,
+ uint32_t pkt_num,
+ __rte_unused void *arg,
+ struct pipeline_cgnapt *p_nat)
+{
+ p_nat->receivedPktCount += 4;
+ /* bitmask representing only this packet */
+ uint64_t pkt_mask0 = 1LLU << pkt_num;
+ uint64_t pkt_mask1 = 1LLU << (pkt_num + 1);
+ uint64_t pkt_mask2 = 1LLU << (pkt_num + 2);
+ uint64_t pkt_mask3 = 1LLU << (pkt_num + 3);
+
+ uint8_t protocol0 = RTE_MBUF_METADATA_UINT8(pkt[0],
+ PROT_OFST_IP4);
+ uint8_t protocol1 = RTE_MBUF_METADATA_UINT8(pkt[1],
+ PROT_OFST_IP4);
+ uint8_t protocol2 = RTE_MBUF_METADATA_UINT8(pkt[2],
+ PROT_OFST_IP4);
+ uint8_t protocol3 = RTE_MBUF_METADATA_UINT8(pkt[3],
+ PROT_OFST_IP4);
+
+ uint32_t dst_addr0 = RTE_MBUF_METADATA_UINT32(pkt[0],
+ DST_ADR_OFST_IP4);
+ uint32_t dst_addr1 = RTE_MBUF_METADATA_UINT32(pkt[1],
+ DST_ADR_OFST_IP4);
+ uint32_t dst_addr2 = RTE_MBUF_METADATA_UINT32(pkt[2],
+ DST_ADR_OFST_IP4);
+ uint32_t dst_addr3 = RTE_MBUF_METADATA_UINT32(pkt[3],
+ DST_ADR_OFST_IP4);
+
+ uint16_t src_port_offset0;
+ uint16_t src_port_offset1;
+ uint16_t src_port_offset2;
+ uint16_t src_port_offset3;
+
+ uint16_t dst_port_offset0;
+ uint16_t dst_port_offset1;
+ uint16_t dst_port_offset2;
+ uint16_t dst_port_offset3;
+
+ uint16_t src_port0;
+ uint16_t src_port1;
+ uint16_t src_port2;
+ uint16_t src_port3;
+
+ uint16_t dst_port0;
+ uint16_t dst_port1;
+ uint16_t dst_port2;
+ uint16_t dst_port3;
+
+ struct pipeline_cgnapt_entry_key key0;
+ struct pipeline_cgnapt_entry_key key1;
+ struct pipeline_cgnapt_entry_key key2;
+ struct pipeline_cgnapt_entry_key key3;
+
+ memset(&key0, 0, sizeof(struct pipeline_cgnapt_entry_key));
+ memset(&key1, 0, sizeof(struct pipeline_cgnapt_entry_key));
+ memset(&key2, 0, sizeof(struct pipeline_cgnapt_entry_key));
+ memset(&key3, 0, sizeof(struct pipeline_cgnapt_entry_key));
+
+/* --0-- */
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt[0]);
+ #endif
+
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt[0], pkt_mask0, p_nat))
+ goto PKT1;
+ }
+
+ switch (protocol0) {
+ case IP_PROTOCOL_UDP:
+ case IP_PROTOCOL_TCP:
+
+ src_port_offset0 = SRC_PRT_OFST_IP4_TCP;
+ dst_port_offset0 = DST_PRT_OFST_IP4_TCP;
+
+ src_port0 = RTE_MBUF_METADATA_UINT16(pkt[0],
+ src_port_offset0);
+ dst_port0 = RTE_MBUF_METADATA_UINT16(pkt[0],
+ dst_port_offset0);
+
+ key0.port = rte_bswap16(dst_port0);
+
+ break;
+
+ case IP_PROTOCOL_ICMP:
+ /* Identifier */
+ src_port_offset0 = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 4;
+ /*Sequence number */
+ dst_port_offset0 = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 6;
+
+ src_port0 = RTE_MBUF_METADATA_UINT16(pkt[0],
+ src_port_offset0);
+ dst_port0 = RTE_MBUF_METADATA_UINT16(pkt[0],
+ dst_port_offset0);
+
+ key0.port = rte_bswap16(src_port0);
+
+ break;
+
+ default:
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask0;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+ goto PKT1;
+ }
+
+ key0.pid = 0xffff;
+ key0.ip = rte_bswap32(dst_addr0);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key0.port = 0xffff;
+ #endif
+
+ memcpy(&p_nat->keys[pkt_num], &key0,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->key_ptrs[pkt_num] = &p_nat->keys[pkt_num];
+
+/* --1-- */
+PKT1:
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt[1]);
+ #endif
+
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt[1], pkt_mask1, p_nat))
+ goto PKT2;
+ }
+
+ switch (protocol1) {
+ case IP_PROTOCOL_UDP:
+ case IP_PROTOCOL_TCP:
+
+ src_port_offset1 = SRC_PRT_OFST_IP4_TCP;
+ dst_port_offset1 = DST_PRT_OFST_IP4_TCP;
+
+ src_port1 = RTE_MBUF_METADATA_UINT16(pkt[1],
+ src_port_offset1);
+ dst_port1 = RTE_MBUF_METADATA_UINT16(pkt[1],
+ dst_port_offset1);
+
+ key1.port = rte_bswap16(dst_port1);
+
+ break;
+
+ case IP_PROTOCOL_ICMP:
+ /* Identifier */
+ src_port_offset1 = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 4;
+ /*Sequence number */
+ dst_port_offset1 = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 6;
+
+ src_port1 = RTE_MBUF_METADATA_UINT16(pkt[1],
+ src_port_offset1);
+ dst_port1 = RTE_MBUF_METADATA_UINT16(pkt[1],
+ dst_port_offset1);
+
+ key1.port = rte_bswap16(src_port1);
+ break;
+
+ default:
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask1;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+ goto PKT2;
+ }
+
+ key1.pid = 0xffff;
+ key1.ip = rte_bswap32(dst_addr1);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key1.port = 0xffff;
+ #endif
+
+ memcpy(&p_nat->keys[pkt_num + 1], &key1,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->key_ptrs[pkt_num + 1] = &p_nat->keys[pkt_num + 1];
+
+/* --2-- */
+PKT2:
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt[2]);
+ #endif
+
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt[2], pkt_mask2, p_nat))
+ goto PKT3;
+ }
+
+ switch (protocol2) {
+ case IP_PROTOCOL_UDP:
+ case IP_PROTOCOL_TCP:
+
+ src_port_offset2 = SRC_PRT_OFST_IP4_TCP;
+ dst_port_offset2 = DST_PRT_OFST_IP4_TCP;
+
+ src_port2 = RTE_MBUF_METADATA_UINT16(pkt[2],
+ src_port_offset2);
+ dst_port2 = RTE_MBUF_METADATA_UINT16(pkt[2],
+ dst_port_offset2);
+
+ key2.port = rte_bswap16(dst_port2);
+
+ break;
+
+ case IP_PROTOCOL_ICMP:
+ /* Identifier */
+ src_port_offset2 = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 4;
+ /*Sequence number */
+ dst_port_offset2 = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 6;
+
+ src_port2 = RTE_MBUF_METADATA_UINT16(pkt[2],
+ src_port_offset2);
+ dst_port2 = RTE_MBUF_METADATA_UINT16(pkt[2],
+ dst_port_offset2);
+
+ key2.port = rte_bswap16(src_port2);
+
+ break;
+
+ default:
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask2;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+ goto PKT3;
+ }
+
+ key2.pid = 0xffff;
+ key2.ip = rte_bswap32(dst_addr2);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key2.port = 0xffff;
+ #endif
+
+ memcpy(&p_nat->keys[pkt_num + 2], &key2,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->key_ptrs[pkt_num + 2] = &p_nat->keys[pkt_num + 2];
+
+/* --3-- */
+PKT3:
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt[3]);
+ #endif
+
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt[3], pkt_mask3, p_nat))
+ return;
+ }
+
+ switch (protocol3) {
+ case IP_PROTOCOL_UDP:
+ case IP_PROTOCOL_TCP:
+
+ src_port_offset3 = SRC_PRT_OFST_IP4_TCP;
+ dst_port_offset3 = DST_PRT_OFST_IP4_TCP;
+
+ src_port3 = RTE_MBUF_METADATA_UINT16(pkt[3],
+ src_port_offset3);
+ dst_port3 = RTE_MBUF_METADATA_UINT16(pkt[3],
+ dst_port_offset3);
+
+ key3.port = rte_bswap16(dst_port3);
+
+ break;
+
+ case IP_PROTOCOL_ICMP:
+ /* Identifier */
+ src_port_offset3 = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 4;
+ /*Sequence number */
+ dst_port_offset3 = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 6;
+
+ src_port3 = RTE_MBUF_METADATA_UINT16(pkt[3],
+ src_port_offset3);
+ dst_port3 = RTE_MBUF_METADATA_UINT16(pkt[3],
+ dst_port_offset3);
+
+ key3.port = rte_bswap16(src_port3);
+
+ break;
+
+ default:
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask3;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+ return;
+ }
+
+ key3.pid = 0xffff;
+ key3.ip = rte_bswap32(dst_addr3);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key3.port = 0xffff;
+ #endif
+
+ memcpy(&p_nat->keys[pkt_num + 3], &key3,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->key_ptrs[pkt_num + 3] = &p_nat->keys[pkt_num + 3];
+}
+
+/**
+ * NAPT key calculation function for IPv4 private traffic
+ * which handles 1 pkt
+ *
+ * @param pkt
+ * A pointer to array of packets mbuf
+ * @param in_pkt_num
+ * Pkt number of pkts
+ * @param arg
+ * Void pointer
+ * @param p_nat
+ * A pointer to main CGNAPT structure
+ *
+ */
+void
+pkt_work_cgnapt_key_ipv4_prv(
+ struct rte_mbuf *pkt,
+ uint32_t pkt_num,
+ __rte_unused void *arg,
+ struct pipeline_cgnapt *p_nat)
+{
+ /* Egress */
+ p_nat->receivedPktCount++;
+
+ /* bitmask representing only this packet */
+ uint64_t pkt_mask = 1LLU << pkt_num;
+ uint8_t protocol = RTE_MBUF_METADATA_UINT8(pkt, PROT_OFST_IP4);
+
+ uint32_t src_addr = RTE_MBUF_METADATA_UINT32(pkt, SRC_ADR_OFST_IP4);
+
+ uint16_t src_port_offset;
+
+ uint16_t src_port;
+
+ uint16_t phy_port = pkt->port;
+ struct pipeline_cgnapt_entry_key key;
+
+ memset(&key, 0, sizeof(struct pipeline_cgnapt_entry_key));
+
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt);
+ #endif
+
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt, pkt_mask, p_nat))
+ return;
+ }
+
+ switch (protocol) {
+ case IP_PROTOCOL_UDP:
+ {
+ #ifdef PCP_ENABLE
+ if (pcp_enable) {
+ struct udp_hdr *udp;
+
+ udp = (struct udp_hdr *)
+ RTE_MBUF_METADATA_UINT8_PTR(pkt,
+ IPV4_UDP_OFST);
+
+ if (rte_bswap16(udp->dst_port) ==
+ PCP_SERVER_PORT) {
+ handle_pcp_req(pkt, IPV4_SZ, p_nat);
+ p_nat->invalid_packets |= pkt_mask;
+ return;
+ }
+ }
+ #endif
+ }
+ case IP_PROTOCOL_TCP:
+
+ src_port_offset = SRC_PRT_OFST_IP4_TCP;
+ src_port = RTE_MBUF_METADATA_UINT16(pkt, src_port_offset);
+
+ key.port = rte_bswap16(src_port);
+
+ break;
+ case IP_PROTOCOL_ICMP:
+ /* Identifier */
+ src_port_offset = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 4;
+ src_port = RTE_MBUF_METADATA_UINT16(pkt, src_port_offset);
+
+ key.port = rte_bswap16(src_port);
+
+ break;
+ default:
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+ return;
+ }
+
+ key.pid = phy_port;
+ key.ip = rte_bswap32(src_addr);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key.port = 0xffff;
+ #endif
+
+ memcpy(&p_nat->keys[pkt_num], &key,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->key_ptrs[pkt_num] = &p_nat->keys[pkt_num];
+}
+
+/**
+ * NAPT key calculation function for IPv4 public traffic
+ * which handles 1 pkt
+ *
+ * @param pkt
+ * A pointer to array of packets mbuf
+ * @param in_pkt_num
+ * Pkt number of pkts
+ * @param arg
+ * Void pointer
+ * @param p_nat
+ * A pointer to main CGNAPT structure
+ *
+ */
+void
+pkt_work_cgnapt_key_ipv4_pub(
+ struct rte_mbuf *pkt,
+ uint32_t pkt_num,
+ __rte_unused void *arg,
+ struct pipeline_cgnapt *p_nat)
+{
+ p_nat->receivedPktCount++;
+
+ /* bitmask representing only this packet */
+ uint64_t pkt_mask = 1LLU << pkt_num;
+ uint8_t protocol = RTE_MBUF_METADATA_UINT8(pkt, PROT_OFST_IP4);
+ uint32_t dst_addr = RTE_MBUF_METADATA_UINT32(pkt, DST_ADR_OFST_IP4);
+ uint16_t src_port_offset;
+ uint16_t dst_port_offset;
+ uint16_t src_port;
+ uint16_t dst_port;
+ struct pipeline_cgnapt_entry_key key;
+ memset(&key, 0, sizeof(struct pipeline_cgnapt_entry_key));
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt);
+ #endif
+
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt, pkt_mask, p_nat))
+ return;
+ }
+
+ switch (protocol) {
+ case IP_PROTOCOL_UDP:
+ case IP_PROTOCOL_TCP:
+ src_port_offset = SRC_PRT_OFST_IP4_TCP;
+ dst_port_offset = DST_PRT_OFST_IP4_TCP;
+
+ src_port = RTE_MBUF_METADATA_UINT16(pkt, src_port_offset);
+ dst_port = RTE_MBUF_METADATA_UINT16(pkt, dst_port_offset);
+
+ key.port = rte_bswap16(dst_port);
+ break;
+ case IP_PROTOCOL_ICMP:
+ /* Identifier */
+ src_port_offset = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 4;
+ dst_port_offset = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 6;
+
+ src_port = RTE_MBUF_METADATA_UINT16(pkt, src_port_offset);
+ dst_port = RTE_MBUF_METADATA_UINT16(pkt, dst_port_offset);
+
+ /* common table lookupkey preparation from incoming
+ * ICMP Packet- Indentifier field
+ */
+ key.port = rte_bswap16(src_port);
+ break;
+ default:
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+ return;
+ }
+
+ key.ip = rte_bswap32(dst_addr);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key.port = 0xffff;
+ #endif
+
+ key.pid = 0xffff;
+
+ memcpy(&p_nat->keys[pkt_num], &key,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->key_ptrs[pkt_num] = &p_nat->keys[pkt_num];
+}
+
+
+/**
+ * NAPT function for IPv4 private traffic which handles 1 pkt
+ *
+ * @param pkts
+ * A pointer to array of packet mbuf
+ * @param in_pkt_num
+ * Pkt number of pkt
+ * @param arg
+ * Void pointer
+ * @param p_nat
+ * A pointer to main CGNAPT structure
+ *
+ */
+void
+pkt_work_cgnapt_ipv4_prv(
+ struct rte_mbuf **pkts,
+ uint32_t pkt_num,
+ __rte_unused void *arg,
+ struct pipeline_cgnapt *p_nat)
+{
+ #ifdef CT_CGNAT
+ struct rte_CT_helper ct_helper;
+ memset(&ct_helper, 0, sizeof(struct rte_CT_helper));
+ #endif
+
+ /* index into hash table entries */
+ int hash_table_entry = p_nat->lkup_indx[pkt_num];
+ /*bitmask representing only this packet */
+ uint64_t pkt_mask = 1LLU << pkt_num;
+ struct rte_mbuf *pkt = pkts[pkt_num];
+
+ uint8_t protocol = RTE_MBUF_METADATA_UINT8(pkt, PROT_OFST_IP4);
+
+ uint32_t dest_if = 0xff; /* Added for Multiport */
+ uint16_t *outport_id =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt, cgnapt_meta_offset);
+
+ struct cgnapt_table_entry *entry = NULL;
+
+ enum PKT_TYPE pkt_type = PKT_TYPE_IPV4;
+
+ if (hash_table_entry < 0) {
+
+ /* try to add new entry */
+ struct rte_pipeline_table_entry *table_entry = NULL;
+
+ uint64_t dropmask = pkt_miss_cgnapt(p_nat->key_ptrs[pkt_num],
+ pkt, &table_entry,
+ &p_nat->valid_packets, pkt_num,
+ (void *)p_nat);
+
+ if (!table_entry) {
+ /* ICMP Error message generation for Destination
+ * Host unreachable
+ */
+ if (protocol == IP_PROTOCOL_ICMP) {
+ cgnapt_icmp_pkt = pkt;
+ send_icmp_dest_unreachable_msg();
+ }
+
+ /* Drop packet by adding to invalid pkt mask */
+
+ p_nat->invalid_packets |= dropmask;
+ #ifdef CGNAPT_DEBUGGING
+ if (p_nat->kpc2++ < 5) {
+ printf("in_ah Th: %d", p_nat->pipeline_num);
+ print_key(p_nat->key_ptrs[pkt_num]);
+ }
+ #endif
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount3++;
+ #endif
+ return;
+ }
+
+ entry = (struct cgnapt_table_entry *)table_entry;
+ } else {
+ /* entry found for this packet */
+ entry = &napt_hash_tbl_entries[hash_table_entry];
+ }
+
+ /* apply napt and mac changes */
+
+ p_nat->entries[pkt_num] = &(entry->head);
+
+ uint32_t *src_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(pkt, SRC_ADR_OFST_IP4);
+ uint32_t *dst_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(pkt, DST_ADR_OFST_IP4);
+ uint16_t src_port_offset = 0;
+ uint16_t dst_port_offset = 0;
+ uint16_t *src_port;
+ uint16_t *dst_port;
+
+ switch (protocol) {
+ case IP_PROTOCOL_TCP:
+ src_port_offset = SRC_PRT_OFST_IP4_TCP;
+ dst_port_offset = DST_PRT_OFST_IP4_TCP;
+ src_port = RTE_MBUF_METADATA_UINT16_PTR(pkt, src_port_offset);
+ dst_port = RTE_MBUF_METADATA_UINT16_PTR(pkt, dst_port_offset);
+
+ #ifdef CT_CGNAT
+ if ((rte_be_to_cpu_16(*src_port) == 21) ||
+ rte_be_to_cpu_16(*dst_port) == 21) {
+
+ #ifdef ALGDBG
+ printf("cgnapt_ct_process: pkt_mask: % "PRIu64", "
+ "pkt_num: %d\n", pkt_mask, pkt_num);
+ #endif
+
+ pkt_mask = cgnapt_ct_process(cgnat_cnxn_tracker, pkts,
+ pkt_mask, &ct_helper);
+ }
+ #endif
+ break;
+ case IP_PROTOCOL_UDP:
+ src_port_offset = SRC_PRT_OFST_IP4_TCP;
+ dst_port_offset = DST_PRT_OFST_IP4_TCP;
+ src_port = RTE_MBUF_METADATA_UINT16_PTR(pkt, src_port_offset);
+ dst_port = RTE_MBUF_METADATA_UINT16_PTR(pkt, dst_port_offset);
+ break;
+ case IP_PROTOCOL_ICMP:
+ /* Identifier */
+ src_port_offset = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 4;
+ /*Sequence number */
+ dst_port_offset = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 6;
+ src_port = RTE_MBUF_METADATA_UINT16_PTR(pkt, src_port_offset);
+ dst_port = RTE_MBUF_METADATA_UINT16_PTR(pkt, dst_port_offset);
+ break;
+ }
+
+ uint8_t *eth_dest = RTE_MBUF_METADATA_UINT8_PTR(pkt, MBUF_HDR_ROOM);
+ uint8_t *eth_src = RTE_MBUF_METADATA_UINT8_PTR(pkt, MBUF_HDR_ROOM + 6);
+
+ if (entry->data.ttl == NAPT_ENTRY_STALE)
+ entry->data.ttl = NAPT_ENTRY_VALID;
+
+ struct ether_addr hw_addr;
+ uint32_t dest_address = 0;
+
+ /* Egress */
+ if (unlikely(protocol == IP_PROTOCOL_UDP
+ && rte_be_to_cpu_16(*dst_port) == 53)) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ return;
+ }
+
+ dest_address = rte_bswap32(*dst_addr);
+ /*Multiport Changes */
+ uint32_t nhip = 0;
+ uint32_t ret;
+ ret = local_get_nh_ipv4(dest_address, &dest_if, &nhip, p_nat);
+ if (!ret) {
+ dest_if = get_prv_to_pub_port(&dest_address, IP_VERSION_4);
+
+ if (dest_if == INVALID_DESTIF) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ return;
+ }
+
+ do_local_nh_ipv4_cache(dest_if, p_nat);
+ }
+
+ *outport_id = p_nat->outport_id[dest_if];
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2)
+ printf("Egress: \tphy_port:%d\t get_prv_to_pub():%d "
+ "\tout_port:%d\n", pkt->port, dest_if,
+ *outport_id);
+ #endif
+
+ if (local_dest_mac_present(dest_if)) {
+ memcpy(eth_dest,
+ get_local_link_hw_addr(dest_if),
+ sizeof(struct ether_addr));
+ memcpy(eth_src, get_link_hw_addr(dest_if),
+ sizeof(struct ether_addr));
+ } else {
+ int ret;
+ ret = get_dest_mac_addr_port(dest_address, &dest_if, &hw_addr);
+
+ if (unlikely(ret != ARP_FOUND)) {
+
+ if (unlikely(ret == ARP_NOT_FOUND)) {
+ //request_arp(*outport_id, nhip, p_nat->p.p);
+ printf("%s: ARP Not Found, nhip: %x, "
+ "outport_id: %d\n", __func__, nhip,
+ *outport_id);
+ }
+
+ /* Drop the pkt */
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ return;
+
+ }
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("MAC found for ip 0x%x, port %d - %02x:%02x: "
+ "%02x:%02x:%02x:%02x\n", dest_address,
+ *outport_id,
+ hw_addr.addr_bytes[0], hw_addr.addr_bytes[1],
+ hw_addr.addr_bytes[2], hw_addr.addr_bytes[3],
+ hw_addr.addr_bytes[4], hw_addr.addr_bytes[5]);
+
+ printf("Dest MAC before - %02x:%02x:%02x: "
+ "%02x:%02x:%02x\n", eth_dest[0], eth_dest[1],
+ eth_dest[2], eth_dest[3], eth_dest[4], eth_dest[5]);
+ }
+
+ #endif
+
+ memcpy(eth_dest, &hw_addr, sizeof(struct ether_addr));
+
+ link_hw_laddr_valid[dest_if] = 1;
+ memcpy(&link_hw_laddr[dest_if], &hw_addr,
+ sizeof(struct ether_addr));
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("Dest MAC after - %02x:%02x:%02x:%02x:%02x"
+ ":%02x\n", eth_dest[0], eth_dest[1], eth_dest[2],
+ eth_dest[3], eth_dest[4], eth_dest[5]);
+ }
+ #endif
+
+ memcpy(eth_src, get_link_hw_addr(dest_if),
+ sizeof(struct ether_addr));
+ }
+
+ {
+ /* Egress */
+ *src_addr = rte_bswap32(entry->data.pub_ip);
+
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (!nat_only_config_flag) {
+ #endif
+ *src_port = rte_bswap16(entry->data.pub_port);
+ #ifdef NAT_ONLY_CONFIG_REQ
+ }
+ #endif
+
+ #ifdef SIP_ALG
+ uint16_t rtp_port = 0, rtcp_port = 0;
+ struct cgnapt_table_entry *entry_ptr1 = NULL,
+ *entry_ptr2 = NULL, *entry_ptr3 = NULL,
+ *entry_ptr4 = NULL;
+
+ if (unlikely(protocol == IP_PROTOCOL_UDP
+ && (rte_be_to_cpu_16(*dst_port) == 5060
+ || rte_be_to_cpu_16(*src_port) == 5060))) {
+
+ int ret = natSipAlgGetAudioPorts(pkt, &rtp_port,
+ &rtcp_port);
+ /* Commented code may be required for debug
+ * and future use, Please keep it*/
+ #if 0
+ if (ret < 0) {
+ printf("%s: Wrong SIP ALG packet1\n",
+ __func__);
+ p_nat->invalid_packets |= pkt_mask;
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ return;
+ }
+ #endif
+
+ if (ret >= 0 && rtp_port != 0) {
+ struct pipeline_cgnapt_entry_key rtp_key;
+ rtp_key.ip = entry->data.u.prv_ip;
+ rtp_key.port = rtp_port;
+ rtp_key.pid = entry->data.prv_phy_port;
+
+ if (add_dynamic_cgnapt_entry_alg(
+ (struct pipeline *)p_nat, &rtp_key,
+ &entry_ptr1, &entry_ptr2) == 0) {
+ printf("%s: Wrong SIP ALG packet2\n",
+ __func__);
+ p_nat->invalid_packets |= pkt_mask;
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ return;
+ }
+ }
+
+ if (ret >= 0 && rtcp_port != 0) {
+ struct pipeline_cgnapt_entry_key rtcp_key;
+ rtcp_key.ip = entry->data.u.prv_ip;
+ rtcp_key.port = rtcp_port;
+ rtcp_key.pid = entry->data.prv_phy_port;
+
+ if (add_dynamic_cgnapt_entry_alg(
+ (struct pipeline *)p_nat, &rtcp_key,
+ &entry_ptr3, &entry_ptr4) == 0) {
+ printf("%s: Wrong SIP ALG packet3\n",
+ __func__);
+ p_nat->invalid_packets |= pkt_mask;
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ return;
+ }
+
+ }
+ //if(entry_ptr1 != NULL && entry_ptr3 != NULL)
+ if (sip_alg_dpi(pkt, PRIVATE, entry->data.pub_ip,
+ entry->data.pub_port, entry->data.u.prv_ip,
+ entry->data.prv_port, (rtp_port == 0) ? 0 :
+ entry_ptr1->data.pub_port,
+ (rtcp_port == 0) ? 0 :
+ entry_ptr3->data.pub_port) == 0) {
+
+ printf("%s: Wrong SIP ALG packet4\n",
+ __func__);
+ p_nat->invalid_packets |= pkt_mask;
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ return;
+ }
+ }
+ #endif /* SIP_ALG */
+
+ #ifdef FTP_ALG
+
+ #ifdef ALGDBG
+ printf("@CGNAT-pktwork ct_position :%d, pkt_num %d pkt_mask= "
+ "%" PRIu64 "\n", ct_position, pkt_num, pkt_mask);
+ #endif
+
+ if ((rte_be_to_cpu_16(*src_port) == 21) ||
+ rte_be_to_cpu_16(*dst_port) == 21) {
+
+ int32_t ct_position = cgnat_cnxn_tracker->positions[pkt_num];
+ if (ct_position < 0){
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ return;
+ }
+ /* Commented code may be required for future usage,
+ * Please keep it
+ */
+ //if (cgnat_cnxn_tracker->hash_table_entries
+ // [ct_position].alg_bypass_flag != BYPASS)
+ {
+ struct pipeline_cgnapt_entry_key data_channel_entry_key;
+
+ data_channel_entry_key.ip = entry->data.pub_ip;
+ data_channel_entry_key.port = entry->data.pub_port;
+ data_channel_entry_key.pid = pkt->port;
+ ftp_alg_dpi(p_nat, &data_channel_entry_key, pkt,
+ cgnat_cnxn_tracker, ct_position, PRIVATE);
+ }
+ }
+ #endif /* FTP_ALG */
+
+ p_nat->enaptedPktCount++;
+ }
+
+ p_nat->naptedPktCount++;
+
+ #ifdef HW_CHECKSUM_REQ
+ if (p_nat->hw_checksum_reqd)
+ hw_checksum(pkt, pkt_type);
+ else
+ #endif
+ sw_checksum(pkt, pkt_type);
+
+}
+
+
+/**
+ * NAPT function for IPv4 public traffic which handles 1 pkt
+ *
+ * @param pkts
+ * A pointer to array of packet mbuf
+ * @param in_pkt_num
+ * Pkt number of pkt
+ * @param arg
+ * Void pointer
+ * @param p_nat
+ * A pointer to main CGNAPT structure
+ *
+ */
+void
+pkt_work_cgnapt_ipv4_pub(
+ struct rte_mbuf **pkts,
+ uint32_t pkt_num,
+ __rte_unused void *arg,
+ struct pipeline_cgnapt *p_nat)
+{
+
+ #ifdef CT_CGNAT
+ struct rte_CT_helper ct_helper;
+ memset(&ct_helper, 0, sizeof(struct rte_CT_helper));
+ #endif
+
+ /* index into hash table entries */
+ int hash_table_entry = p_nat->lkup_indx[pkt_num];
+ /*bitmask representing only this packet */
+ uint64_t pkt_mask = 1LLU << pkt_num;
+ struct rte_mbuf *pkt = pkts[pkt_num];
+
+ uint8_t protocol = RTE_MBUF_METADATA_UINT8(pkt, PROT_OFST_IP4);
+
+ uint32_t dest_if = 0xff; /* Added for Multiport */
+ uint16_t *outport_id =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt, cgnapt_meta_offset);
+
+ struct cgnapt_table_entry *entry = NULL;
+
+ enum PKT_TYPE pkt_type = PKT_TYPE_IPV4;
+
+ if (hash_table_entry < 0) {
+
+ /* try to add new entry */
+ struct rte_pipeline_table_entry *table_entry = NULL;
+
+ uint64_t dropmask = pkt_miss_cgnapt(p_nat->key_ptrs[pkt_num],
+ pkt, &table_entry,
+ &p_nat->valid_packets, pkt_num,
+ (void *)p_nat);
+
+ if (!table_entry) {
+ /* ICMP Error message generation for
+ * Destination Host unreachable
+ */
+ if (protocol == IP_PROTOCOL_ICMP) {
+ cgnapt_icmp_pkt = pkt;
+ send_icmp_dest_unreachable_msg();
+ }
+
+ /* Drop packet by adding to invalid pkt mask */
+
+ p_nat->invalid_packets |= dropmask;
+ #ifdef CGNAPT_DEBUGGING
+ if (p_nat->kpc2++ < 5) {
+ printf("in_ah Th: %d", p_nat->pipeline_num);
+ print_key(p_nat->key_ptrs[pkt_num]);
+ }
+ #endif
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount3++;
+ #endif
+ return;
+ }
+
+ entry = (struct cgnapt_table_entry *)table_entry;
+ } else {
+ /* entry found for this packet */
+ entry = &napt_hash_tbl_entries[hash_table_entry];
+ }
+
+ /* apply napt and mac changes */
+
+ p_nat->entries[pkt_num] = &(entry->head);
+
+ uint32_t *dst_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(pkt, DST_ADR_OFST_IP4);
+ uint16_t src_port_offset = 0;
+ uint16_t dst_port_offset = 0;
+
+ if ((protocol == IP_PROTOCOL_TCP) || (protocol == IP_PROTOCOL_UDP)) {
+ src_port_offset = SRC_PRT_OFST_IP4_TCP;
+ dst_port_offset = DST_PRT_OFST_IP4_TCP;
+ } else if (protocol == IP_PROTOCOL_ICMP) {
+ /* Identifier */
+ src_port_offset = MBUF_HDR_ROOM +
+ ETH_HDR_SIZE +
+ IP_HDR_SIZE + 4;
+ /*Sequence number */
+ dst_port_offset = MBUF_HDR_ROOM +
+ ETH_HDR_SIZE +
+ IP_HDR_SIZE + 6;
+ }
+
+ uint16_t *src_port = RTE_MBUF_METADATA_UINT16_PTR(pkt, src_port_offset);
+ uint16_t *dst_port = RTE_MBUF_METADATA_UINT16_PTR(pkt, dst_port_offset);
+
+ uint8_t *eth_dest = RTE_MBUF_METADATA_UINT8_PTR(pkt, MBUF_HDR_ROOM);
+ uint8_t *eth_src = RTE_MBUF_METADATA_UINT8_PTR(pkt, MBUF_HDR_ROOM + 6);
+
+ if (entry->data.ttl == NAPT_ENTRY_STALE)
+ entry->data.ttl = NAPT_ENTRY_VALID;
+
+ struct ether_addr hw_addr;
+ uint32_t dest_address = 0;
+
+ /* Multiport Changes */
+ uint32_t nhip = 0;
+ uint32_t ret;
+
+ {
+ /* Ingress */
+ if (unlikely(protocol == IP_PROTOCOL_UDP
+ && rte_be_to_cpu_16(*src_port) == 53)) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ return;
+ }
+
+ dest_address = entry->data.u.prv_ip;
+
+ ret = local_get_nh_ipv4(dest_address, &dest_if, &nhip, p_nat);
+ if (!ret) {
+ dest_if = get_prv_to_pub_port(&dest_address, IP_VERSION_4);
+
+ if (dest_if == INVALID_DESTIF) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ return;
+ }
+
+ do_local_nh_ipv4_cache(dest_if, p_nat);
+ }
+
+ *outport_id = p_nat->outport_id[dest_if];
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2)
+ printf("Ingress: \tphy_port:%d\t get_pub_to_prv():%d "
+ "\tout_port%d\n", pkt->port, dest_if, *outport_id);
+ #endif
+ }
+
+ if (local_dest_mac_present(dest_if)) {
+ memcpy(eth_dest,
+ get_local_link_hw_addr(dest_if),
+ sizeof(struct ether_addr));
+ memcpy(eth_src, get_link_hw_addr(dest_if),
+ sizeof(struct ether_addr));
+ } else {
+ int ret;
+ ret = get_dest_mac_addr_port(dest_address, &dest_if, &hw_addr);
+
+ if (unlikely(ret != ARP_FOUND)) {
+
+ if (unlikely(ret == ARP_NOT_FOUND)) {
+ /* Commented code may be required for debug
+ * and future use, Please keep it */
+ //request_arp(*outport_id, nhip, p_nat->p.p);
+ printf("%s: ARP Not Found, nhip: %x, "
+ "outport_id: %d\n", __func__, nhip,
+ *outport_id);
+
+ }
+
+ /* Drop the pkt */
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ return;
+
+ }
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf
+ ("MAC found for ip 0x%x, port %d - %02x:%02x: "
+ "%02x:%02x:%02x:%02x\n", dest_address,
+ *outport_id,
+ hw_addr.addr_bytes[0], hw_addr.addr_bytes[1],
+ hw_addr.addr_bytes[2], hw_addr.addr_bytes[3],
+ hw_addr.addr_bytes[4], hw_addr.addr_bytes[5]
+ );
+
+ printf
+ ("Dest MAC before - %02x:%02x:%02x:%02x "
+ ":%02x:%02x\n", eth_dest[0], eth_dest[1],
+ eth_dest[2], eth_dest[3], eth_dest[4],
+ eth_dest[5]);
+ }
+ #endif
+
+ memcpy(eth_dest, &hw_addr, sizeof(struct ether_addr));
+
+ link_hw_laddr_valid[dest_if] = 1;
+ memcpy(&link_hw_laddr[dest_if], &hw_addr,
+ sizeof(struct ether_addr));
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("Dest MAC after - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ eth_dest[0], eth_dest[1], eth_dest[2], eth_dest[3],
+ eth_dest[4], eth_dest[5]);
+ }
+ #endif
+
+ memcpy(eth_src, get_link_hw_addr(dest_if),
+ sizeof(struct ether_addr));
+ }
+
+ {
+ /* Ingress */
+
+ *dst_addr = rte_bswap32(entry->data.u.prv_ip);
+ if (protocol == IP_PROTOCOL_ICMP) {
+ /* Query ID reverse translation done here */
+ /* dont care sequence num */
+ *src_port = rte_bswap16(entry->data.prv_port);
+ } else {
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (!nat_only_config_flag) {
+ #endif
+ *dst_port = rte_bswap16(entry->data.prv_port);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ }
+ #endif
+ #ifdef CT_CGNAT
+ if ((rte_be_to_cpu_16(*src_port) == 21) ||
+ rte_be_to_cpu_16(*dst_port) == 21) {
+ pkt_mask = cgnapt_ct_process(cgnat_cnxn_tracker, pkts,
+ pkt_mask, &ct_helper);
+ }
+ #endif
+ }
+
+ #ifdef SIP_ALG
+ uint16_t rtp_port = 0, rtcp_port = 0;
+ struct cgnapt_table_entry *entry_ptr1 = NULL,
+ *entry_ptr3 = NULL;
+
+ /* Commented code may be required for debug
+ * and future use, Please keep it */
+ #if 0
+ struct cgnapt_table_entry *entry_ptr2 = NULL,
+ *entry_ptr4 = NULL;
+ #endif
+
+ if (unlikely(protocol == IP_PROTOCOL_UDP
+ && (rte_be_to_cpu_16(*dst_port) == 5060
+ || rte_be_to_cpu_16(*src_port) == 5060))) {
+ /* Commented code may be required for future usage,
+ * Please keep it
+ */
+ #if 0
+ int ret = natSipAlgGetAudioPorts(pkt, &rtp_port,
+ &rtcp_port);
+ if (ret < 0) {
+ printf("%s: Wrong SIP ALG packet1\n",
+ __func__);
+ p_nat->invalid_packets |= pkt_mask;
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ return;
+ }
+ if (rtp_port != 0) {
+ struct pipeline_cgnapt_entry_key rtp_key;
+ rtp_key.ip = entry->data.pub_ip;
+ rtp_key.port = rtp_port;
+ rtp_key.pid = 0xffff;
+
+ if (retrieve_cgnapt_entry_alg(&rtp_key,
+ &entry_ptr1, &entry_ptr2) == 0) {
+ printf("%s: Wrong SIP ALG packet2\n",
+ __func__);
+ p_nat->invalid_packets |= pkt_mask;
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ return;
+ }
+ }
+
+ if (rtcp_port != 0) {
+ struct pipeline_cgnapt_entry_key rtcp_key;
+ rtcp_key.ip = entry->data.pub_ip;
+ rtcp_key.port = rtcp_port;
+ rtcp_key.pid = 0xffff;
+
+ if (retrieve_cgnapt_entry_alg(&rtcp_key,
+ &entry_ptr3, &entry_ptr4) == 0) {
+ printf("%s: Wrong SIP ALG packet3\n",
+ __func__);
+ p_nat->invalid_packets |= pkt_mask;
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ return;
+ }
+
+ }
+ #endif
+
+ if (sip_alg_dpi(pkt, PUBLIC, entry->data.u.prv_ip,
+ entry->data.prv_port, entry->data.pub_ip,
+ entry->data.pub_port, (rtp_port == 0) ? 0 :
+ entry_ptr1->data.prv_port,
+ (rtcp_port == 0) ? 0 :
+ entry_ptr3->data.prv_port) == 0) {
+
+ printf("%s: Wrong SIP ALG packet4\n",
+ __func__);
+ p_nat->invalid_packets |= pkt_mask;
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ return;
+
+ }
+ }
+ #endif /* SIP_ALG */
+
+ #ifdef FTP_ALG
+ if ((rte_be_to_cpu_16(*src_port) == 21) ||
+ rte_be_to_cpu_16(*dst_port) == 21) {
+ int32_t ct_position = cgnat_cnxn_tracker->
+ positions[pkt_num];
+ if (ct_position < 0){
+ p_nat->invalid_packets |= pkt_mask;
+
+ p_nat->naptDroppedPktCount++;
+ return;
+ }
+ #ifdef ALGDBG
+ rte_hexdump(stdout, "CT Entry", &cgnat_cnxn_tracker->
+ hash_table_entries[ct_position].key, 40);
+ #endif
+
+ /* Commented code may be required for debug
+ * and future use, Please keep it*/
+ //if (cgnat_cnxn_tracker->hash_table_entries
+ // [ct_position].alg_bypass_flag != BYPASS)
+ {
+ /*enable ALG DPI */
+ struct pipeline_cgnapt_entry_key
+ data_channel_entry_key;
+
+ data_channel_entry_key.ip = entry->data.pub_ip;
+ data_channel_entry_key.port = entry->data.pub_port;
+ data_channel_entry_key.pid = 0xffff;
+ //printf("pkt_work_pub ftp_alg_dpi\n");
+ ftp_alg_dpi(p_nat, &data_channel_entry_key, pkt,
+ cgnat_cnxn_tracker, ct_position, PUBLIC);
+
+ }
+ }
+ #endif
+
+ p_nat->inaptedPktCount++;
+ }
+
+ p_nat->naptedPktCount++;
+
+ #ifdef HW_CHECKSUM_REQ
+ if (p_nat->hw_checksum_reqd)
+ hw_checksum(pkt, pkt_type);
+ else
+ #endif
+ sw_checksum(pkt, pkt_type);
+}
+
+
+/**
+ * NAPT function for IPv4 private traffic which handles 4 pkts
+ *
+ * @param pkts
+ * A pointer to array of packets mbuf
+ * @param in_pkt_num
+ * Starting pkt number of pkts
+ * @param arg
+ * Void pointer
+ * @param p_nat
+ * A pointer to main CGNAPT structure
+ *
+ */
+void
+pkt4_work_cgnapt_ipv4_prv(
+ struct rte_mbuf **pkts,
+ uint32_t in_pkt_num,
+ __rte_unused void *arg,
+ struct pipeline_cgnapt *p_nat)
+{
+ uint32_t dest_if = 0xff; /* Added for Multiport */
+ struct rte_mbuf *pkt;
+ uint8_t i;
+ uint8_t pkt_num;
+ enum PKT_TYPE pkt_type = PKT_TYPE_IPV4;
+
+ #ifdef CT_CGNAT
+ struct rte_CT_helper ct_helper;
+ memset(&ct_helper, 0, sizeof(struct rte_CT_helper));
+ #endif
+
+ for (i = 0; i < 4; i++) {
+ pkt_num = in_pkt_num + i;
+ pkt = pkts[pkt_num];
+
+ /* index into hash table entries */
+ int hash_table_entry = p_nat->lkup_indx[pkt_num];
+ /*bitmask representing only this packet */
+ uint64_t pkt_mask = 1LLU << pkt_num;
+
+ uint8_t protocol = RTE_MBUF_METADATA_UINT8(pkt, PROT_OFST_IP4);
+
+ uint16_t *outport_id =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt, cgnapt_meta_offset);
+
+ struct cgnapt_table_entry *entry = NULL;
+
+ if (hash_table_entry < 0) {
+
+ /* try to add new entry */
+ struct rte_pipeline_table_entry *table_entry = NULL;
+
+ uint64_t dropmask =
+ pkt_miss_cgnapt(p_nat->key_ptrs[pkt_num], pkt,
+ &table_entry,
+ &p_nat->valid_packets, pkt_num,
+ (void *)p_nat);
+
+ if (!table_entry) {
+ /* ICMP Error message generation for
+ * Destination Host unreachable
+ */
+ if (protocol == IP_PROTOCOL_ICMP) {
+ cgnapt_icmp_pkt = pkt;
+ send_icmp_dest_unreachable_msg();
+ }
+
+ /* Drop packet by adding to invalid pkt mask */
+
+ p_nat->invalid_packets |= dropmask;
+
+ #ifdef CGNAPT_DEBUGGING
+ if (p_nat->kpc2++ < 5) {
+ printf("in_ah Th: %d",
+ p_nat->pipeline_num);
+ print_key(p_nat->key_ptrs[pkt_num]);
+ }
+ #endif
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount3++;
+ #endif
+ continue;
+ }
+
+ entry = (struct cgnapt_table_entry *)table_entry;
+ } else {
+ /* entry found for this packet */
+ entry = &napt_hash_tbl_entries[hash_table_entry];
+ }
+
+ /* apply napt and mac changes */
+
+ p_nat->entries[pkt_num] = &(entry->head);
+
+ uint32_t *src_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(pkt, SRC_ADR_OFST_IP4);
+ uint32_t *dst_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(pkt, DST_ADR_OFST_IP4);
+ uint16_t src_port_offset = 0;
+ uint16_t dst_port_offset = 0;
+ uint16_t *src_port;
+ uint16_t *dst_port;
+
+ #if 0
+ if ((protocol == IP_PROTOCOL_TCP)
+ || (protocol == IP_PROTOCOL_UDP)) {
+ src_port_offset = SRC_PRT_OFST_IP4_TCP;
+ dst_port_offset = DST_PRT_OFST_IP4_TCP;
+ } else if (protocol == IP_PROTOCOL_ICMP) {
+ /* Identifier */
+ src_port_offset = MBUF_HDR_ROOM +
+ ETH_HDR_SIZE +
+ IP_HDR_SIZE + 4;
+ /*Sequence number */
+ dst_port_offset = MBUF_HDR_ROOM +
+ ETH_HDR_SIZE +
+ IP_HDR_SIZE + 6;
+ }
+ #endif
+
+ switch (protocol) {
+ case IP_PROTOCOL_TCP:
+ src_port_offset = SRC_PRT_OFST_IP4_TCP;
+ dst_port_offset = DST_PRT_OFST_IP4_TCP;
+ src_port = RTE_MBUF_METADATA_UINT16_PTR(pkt,
+ src_port_offset);
+ dst_port = RTE_MBUF_METADATA_UINT16_PTR(pkt,
+ dst_port_offset);
+
+ #ifdef CT_CGNAT
+ if ((rte_be_to_cpu_16(*src_port) == 21) ||
+ rte_be_to_cpu_16(*dst_port) == 21) {
+
+ //To process CT , pkt_mask does it need
+ //to be complemented ??
+ #ifdef ALGDBG
+ printf("cgnapt_ct_process: pkt_mask: "
+ "% "PRIu64", pkt_num: %d\n",
+ pkt_mask, pkt_num);
+ #endif
+
+ pkt_mask = cgnapt_ct_process(
+ cgnat_cnxn_tracker, pkts,
+ pkt_mask, &ct_helper);
+ }
+ #endif
+ break;
+ case IP_PROTOCOL_UDP:
+ src_port_offset = SRC_PRT_OFST_IP4_TCP;
+ dst_port_offset = DST_PRT_OFST_IP4_TCP;
+ src_port = RTE_MBUF_METADATA_UINT16_PTR(pkt,
+ src_port_offset);
+ dst_port = RTE_MBUF_METADATA_UINT16_PTR(pkt,
+ dst_port_offset);
+ break;
+ case IP_PROTOCOL_ICMP:
+ /* Identifier */
+ src_port_offset = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 4;
+ /*Sequence number */
+ dst_port_offset = MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 6;
+ src_port = RTE_MBUF_METADATA_UINT16_PTR(pkt,
+ src_port_offset);
+ dst_port = RTE_MBUF_METADATA_UINT16_PTR(pkt,
+ dst_port_offset);
+ break;
+ }
+
+
+ uint8_t *eth_dest =
+ RTE_MBUF_METADATA_UINT8_PTR(pkt, MBUF_HDR_ROOM);
+ uint8_t *eth_src =
+ RTE_MBUF_METADATA_UINT8_PTR(pkt, MBUF_HDR_ROOM + 6);
+
+ if (entry->data.ttl == NAPT_ENTRY_STALE)
+ entry->data.ttl = NAPT_ENTRY_VALID;
+
+ struct ether_addr hw_addr;
+ uint32_t dest_address = 0;
+ /*Multiport Changes */
+ uint32_t nhip = 0;
+ uint32_t ret;
+
+ {
+
+ /* Egress */
+ if (unlikely(protocol == IP_PROTOCOL_UDP
+ && rte_be_to_cpu_16(*dst_port) == 53)) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ continue;
+ }
+
+ dest_address = rte_bswap32(*dst_addr);
+ ret = local_get_nh_ipv4(dest_address, &dest_if, &nhip, p_nat);
+ if (!ret) {
+ dest_if = get_prv_to_pub_port(&dest_address,
+ IP_VERSION_4);
+ if (dest_if == INVALID_DESTIF) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ continue;
+ }
+ do_local_nh_ipv4_cache(dest_if, p_nat);
+ }
+ *outport_id = p_nat->outport_id[dest_if];
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2)
+ printf("Egress: \tphy_port:%d\t "
+ "get_prv_to_pub():%d \tout_port:%d\n",
+ pkt->port, dest_if, *outport_id);
+ #endif
+ }
+
+ if (local_dest_mac_present(dest_if)) {
+ memcpy(eth_dest,
+ get_local_link_hw_addr(dest_if),
+ sizeof(struct ether_addr));
+ memcpy(eth_src,
+ get_link_hw_addr(dest_if),
+ sizeof(struct ether_addr));
+ } else {
+ int ret;
+ ret = get_dest_mac_addr_port(dest_address, &dest_if, &hw_addr);
+
+ if (unlikely(ret != ARP_FOUND)) {
+
+ if (unlikely(ret == ARP_NOT_FOUND)) {
+ printf("%s: ARP Not Found, nhip: %x, "
+ "outport_id: %d\n", __func__, nhip,
+ *outport_id);
+ //request_arp(*outport_id, nhip, p_nat->p.p);
+ }
+
+ /* Drop the pkt */
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ continue;
+
+ }
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("MAC found for ip 0x%x, port %d - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ dest_address,
+ *outport_id,
+ hw_addr.addr_bytes[0],
+ hw_addr.addr_bytes[1],
+ hw_addr.addr_bytes[2],
+ hw_addr.addr_bytes[3],
+ hw_addr.addr_bytes[4],
+ hw_addr.addr_bytes[5]
+ );
+
+ printf("Dest MAC before - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ eth_dest[0], eth_dest[1], eth_dest[2],
+ eth_dest[3], eth_dest[4], eth_dest[5]);
+ }
+ #endif
+
+ memcpy(eth_dest, &hw_addr, sizeof(struct ether_addr));
+
+ link_hw_laddr_valid[dest_if] = 1;
+ memcpy(&link_hw_laddr[dest_if], &hw_addr,
+ sizeof(struct ether_addr));
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("Dest MAC after - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ eth_dest[0], eth_dest[1], eth_dest[2],
+ eth_dest[3], eth_dest[4], eth_dest[5]);
+ }
+ #endif
+
+ memcpy(eth_src,
+ get_link_hw_addr(dest_if),
+ sizeof(struct ether_addr));
+ }
+
+ {
+ /* Egress */
+ *src_addr = rte_bswap32(entry->data.pub_ip);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (!nat_only_config_flag) {
+ #endif
+ *src_port = rte_bswap16(entry->data.pub_port);
+ #ifdef NAT_ONLY_CONFIG_REQ
+ }
+ #endif
+
+ #ifdef SIP_ALG
+ uint16_t rtp_port = 0, rtcp_port = 0;
+ struct cgnapt_table_entry *entry_ptr1 = NULL,
+ *entry_ptr2 = NULL, *entry_ptr3 = NULL,
+ *entry_ptr4 = NULL;
+
+ if (unlikely(protocol == IP_PROTOCOL_UDP
+ && (rte_be_to_cpu_16(*dst_port) == 5060
+ || rte_be_to_cpu_16(*src_port) == 5060))) {
+
+ int ret = natSipAlgGetAudioPorts(pkt,
+ &rtp_port, &rtcp_port);
+ /* Commented code may be required for future usage,
+ * Please keep it
+ */
+ #if 0
+ if (ret < 0) {
+ printf("%s: Wrong SIP ALG packet1\n",
+ __func__);
+ p_nat->invalid_packets |= pkt_mask;
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ continue;
+ }
+ #endif
+
+ if (ret >= 0 && rtp_port != 0) {
+ struct pipeline_cgnapt_entry_key rtp_key;
+ rtp_key.ip = entry->data.u.prv_ip;
+ rtp_key.port = rtp_port;
+ rtp_key.pid = entry->data.prv_phy_port;
+
+ if (add_dynamic_cgnapt_entry_alg(
+ (struct pipeline *)p_nat, &rtp_key,
+ &entry_ptr1, &entry_ptr2) == 0) {
+ printf("%s: Wrong SIP ALG packet2\n",
+ __func__);
+ p_nat->invalid_packets |= pkt_mask;
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ continue;
+ }
+ }
+
+ if (ret >= 0 && rtcp_port != 0) {
+ struct pipeline_cgnapt_entry_key rtcp_key;
+ rtcp_key.ip = entry->data.u.prv_ip;
+ rtcp_key.port = rtcp_port;
+ rtcp_key.pid = entry->data.prv_phy_port;
+
+ if (add_dynamic_cgnapt_entry_alg(
+ (struct pipeline *)p_nat, &rtcp_key,
+ &entry_ptr3, &entry_ptr4) == 0) {
+
+ printf("%s: Wrong SIP ALG packet3\n",
+ __func__);
+ p_nat->invalid_packets |= pkt_mask;
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ continue;
+ }
+
+ }
+ //if(entry_ptr1 != NULL && entry_ptr3 != NULL)
+ if (sip_alg_dpi(pkt, PRIVATE,
+ entry->data.pub_ip,
+ entry->data.pub_port,
+ entry->data.u.prv_ip,
+ entry->data.prv_port,
+ (rtp_port == 0) ? 0 :
+ entry_ptr1->data.pub_port,
+ (rtcp_port == 0) ? 0 :
+ entry_ptr3->data.pub_port) == 0) {
+
+ printf("%s: Wrong SIP ALG packet4\n",
+ __func__);
+ p_nat->invalid_packets |= pkt_mask;
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ continue;
+ }
+ }
+ #endif /* SIP_ALG */
+
+ #ifdef FTP_ALG
+ if ((rte_be_to_cpu_16(*src_port) == 21) ||
+ rte_be_to_cpu_16(*dst_port) == 21) {
+
+ int32_t ct_position =
+ cgnat_cnxn_tracker->positions[pkt_num];
+ #ifdef ALGDBG
+ printf("@CGNAT-pkt4work ct_position :%d, pkt_num %d "
+ "pkt_mask = %" PRIu64 "\n", ct_position,
+ pkt_num, pkt_mask);
+ #endif
+
+ if (ct_position < 0){
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ continue;
+ }
+ if (cgnat_cnxn_tracker->hash_table_entries[ct_position].
+ alg_bypass_flag != BYPASS){
+
+ struct pipeline_cgnapt_entry_key
+ data_channel_entry_key;
+ /*enable ALG DPI */
+ data_channel_entry_key.ip =
+ entry->data.pub_ip;
+ data_channel_entry_key.port =
+ entry->data.pub_port;
+ data_channel_entry_key.pid = 0xffff;
+
+ ftp_alg_dpi(p_nat, &data_channel_entry_key,
+ pkt, cgnat_cnxn_tracker, ct_position,
+ PRIVATE);
+
+ }
+ }
+ #endif
+ p_nat->enaptedPktCount++;
+ }
+
+ p_nat->naptedPktCount++;
+
+ #ifdef HW_CHECKSUM_REQ
+ if (p_nat->hw_checksum_reqd)
+ hw_checksum(pkt, pkt_type);
+ else
+ #endif
+ sw_checksum(pkt, pkt_type);
+ }
+}
+
+/**
+ * NAPT function for IPv4 public traffic which handles 4 pkts
+ *
+ * @param pkts
+ * A pointer to array of packets mbuf
+ * @param in_pkt_num
+ * Starting pkt number of pkts
+ * @param arg
+ * Void pointer
+ * @param p_nat
+ * A pointer to main CGNAPT structure
+ *
+ */
+void
+pkt4_work_cgnapt_ipv4_pub(
+ struct rte_mbuf **pkts,
+ uint32_t in_pkt_num,
+ __rte_unused void *arg,
+ struct pipeline_cgnapt *p_nat)
+{
+ #ifdef CT_CGNAT
+ struct rte_CT_helper ct_helper;
+ memset(&ct_helper, 0, sizeof(struct rte_CT_helper));
+ #endif
+ struct rte_mbuf *pkt;
+ uint8_t i;
+ uint8_t pkt_num;
+ enum PKT_TYPE pkt_type = PKT_TYPE_IPV4;
+
+ for (i = 0; i < 4; i++) {
+ pkt_num = in_pkt_num + i;
+ pkt = pkts[pkt_num];
+
+ /* index into hash table entries */
+ int hash_table_entry = p_nat->lkup_indx[pkt_num];
+ /*bitmask representing only this packet */
+ uint64_t pkt_mask = 1LLU << pkt_num;
+
+ uint8_t protocol = RTE_MBUF_METADATA_UINT8(pkt, PROT_OFST_IP4);
+
+ uint32_t dest_if = 0xff; /* Added for Multiport */
+ uint16_t *outport_id =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt, cgnapt_meta_offset);
+
+ struct cgnapt_table_entry *entry = NULL;
+
+ if (hash_table_entry < 0) {
+
+ /* try to add new entry */
+ struct rte_pipeline_table_entry *table_entry = NULL;
+
+ uint64_t dropmask =
+ pkt_miss_cgnapt(p_nat->key_ptrs[pkt_num], pkt,
+ &table_entry,
+ &p_nat->valid_packets, pkt_num,
+ (void *)p_nat);
+
+ if (!table_entry) {
+ /* ICMP Error message generation for
+ * Destination Host unreachable
+ */
+ if (protocol == IP_PROTOCOL_ICMP) {
+ cgnapt_icmp_pkt = pkt;
+ send_icmp_dest_unreachable_msg();
+ }
+
+ /* Drop packet by adding to invalid pkt mask */
+
+ p_nat->invalid_packets |= dropmask;
+
+ #ifdef CGNAPT_DEBUGGING
+ if (p_nat->kpc2++ < 5) {
+ printf("in_ah Th: %d",
+ p_nat->pipeline_num);
+ print_key(p_nat->key_ptrs[pkt_num]);
+ }
+ #endif
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount3++;
+ #endif
+
+ continue;
+ }
+
+ entry = (struct cgnapt_table_entry *)table_entry;
+ } else {
+ /* entry found for this packet */
+ entry = &napt_hash_tbl_entries[hash_table_entry];
+ }
+
+ /* apply napt and mac changes */
+
+ p_nat->entries[pkt_num] = &(entry->head);
+
+ uint32_t *dst_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(pkt, DST_ADR_OFST_IP4);
+ uint16_t src_port_offset = 0;
+ uint16_t dst_port_offset = 0;
+
+ if ((protocol == IP_PROTOCOL_TCP)
+ || (protocol == IP_PROTOCOL_UDP)) {
+ src_port_offset = SRC_PRT_OFST_IP4_TCP;
+ dst_port_offset = DST_PRT_OFST_IP4_TCP;
+ } else if (protocol == IP_PROTOCOL_ICMP) {
+ /* Identifier */
+ src_port_offset = MBUF_HDR_ROOM +
+ ETH_HDR_SIZE +
+ IP_HDR_SIZE + 4;
+ /*Sequence number */
+ dst_port_offset = MBUF_HDR_ROOM +
+ ETH_HDR_SIZE +
+ IP_HDR_SIZE + 6;
+ }
+
+ uint16_t *src_port =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt, src_port_offset);
+ uint16_t *dst_port =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt, dst_port_offset);
+
+ uint8_t *eth_dest =
+ RTE_MBUF_METADATA_UINT8_PTR(pkt, MBUF_HDR_ROOM);
+ uint8_t *eth_src =
+ RTE_MBUF_METADATA_UINT8_PTR(pkt, MBUF_HDR_ROOM + 6);
+
+ if (entry->data.ttl == NAPT_ENTRY_STALE)
+ entry->data.ttl = NAPT_ENTRY_VALID;
+
+ struct ether_addr hw_addr;
+ uint32_t dest_address = 0;
+ /* Multiport Changes */
+ uint32_t nhip = 0;
+ uint32_t ret;
+
+ /* Ingress */
+ {
+ if (unlikely(protocol == IP_PROTOCOL_UDP
+ && rte_be_to_cpu_16(*src_port) == 53)) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ continue;
+ }
+
+ dest_address = entry->data.u.prv_ip;
+ ret = local_get_nh_ipv4(dest_address, &dest_if, &nhip, p_nat);
+ if (!ret) {
+ dest_if = get_prv_to_pub_port(&dest_address, IP_VERSION_4);
+
+ if (dest_if == INVALID_DESTIF) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ continue;
+ }
+
+ do_local_nh_ipv4_cache(dest_if, p_nat);
+ }
+
+ *outport_id = p_nat->outport_id[dest_if];
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2)
+ printf("Ingress: \tphy_port:%d\t "
+ "get_pub_to_prv():%d \tout_port%d\n",
+ pkt->port, dest_if,
+ *outport_id);
+ #endif
+ }
+
+ if (local_dest_mac_present(dest_if)) {
+ memcpy(eth_dest,
+ get_local_link_hw_addr(dest_if),
+ sizeof(struct ether_addr));
+ memcpy(eth_src,
+ get_link_hw_addr(dest_if),
+ sizeof(struct ether_addr));
+ } else {
+ int ret;
+ ret = get_dest_mac_addr_port(dest_address, &dest_if, &hw_addr);
+
+ if (unlikely(ret != ARP_FOUND)) {
+
+ if (unlikely(ret == ARP_NOT_FOUND)) {
+ printf("%s: ARP Not Found, nhip: %x, "
+ "outport_id: %d\n", __func__, nhip,
+ *outport_id);
+ //request_arp(*outport_id, nhip, p_nat->p.p);
+ }
+
+ /* Drop the pkt */
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ continue;
+
+ }
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("MAC found for ip 0x%x, port %d - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ dest_address, *outport_id,
+ hw_addr.addr_bytes[0],
+ hw_addr.addr_bytes[1],
+ hw_addr.addr_bytes[2],
+ hw_addr.addr_bytes[3],
+ hw_addr.addr_bytes[4],
+ hw_addr.addr_bytes[5]
+ );
+
+ printf("Dest MAC before - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ eth_dest[0], eth_dest[1], eth_dest[2],
+ eth_dest[3], eth_dest[4], eth_dest[5]);
+ }
+ #endif
+
+ memcpy(eth_dest, &hw_addr, sizeof(struct ether_addr));
+
+ link_hw_laddr_valid[dest_if] = 1;
+ memcpy(&link_hw_laddr[dest_if],
+ &hw_addr, sizeof(struct ether_addr));
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("Dest MAC after - %02x:%02x:%02x: "
+ "%02x:%02x:%02x\n",
+ eth_dest[0], eth_dest[1], eth_dest[2],
+ eth_dest[3], eth_dest[4], eth_dest[5]);
+ }
+ #endif
+
+ memcpy(eth_src,
+ get_link_hw_addr(dest_if),
+ sizeof(struct ether_addr));
+ }
+
+ {
+ /* Ingress */
+
+ *dst_addr = rte_bswap32(entry->data.u.prv_ip);
+ if (protocol == IP_PROTOCOL_ICMP) {
+ /* Query ID reverse translation done here */
+ *src_port = rte_bswap16(entry->data.prv_port);
+ /* dont care sequence num */
+ } else {
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (!nat_only_config_flag) {
+ #endif
+ *dst_port =
+ rte_bswap16(entry->data.prv_port);
+ #ifdef NAT_ONLY_CONFIG_REQ
+ }
+ #endif
+
+ #ifdef CT_CGNAT
+ if ((rte_be_to_cpu_16(*src_port) == 21) ||
+ rte_be_to_cpu_16(*dst_port) == 21) {
+ pkt_mask = cgnapt_ct_process(
+ cgnat_cnxn_tracker, pkts,
+ pkt_mask, &ct_helper);
+ }
+ #endif
+ }
+
+ #ifdef SIP_ALG
+ uint16_t rtp_port = 0, rtcp_port = 0;
+ struct cgnapt_table_entry *entry_ptr1 = NULL,
+ *entry_ptr3 = NULL;
+ /* Commented code may be required for future usage,
+ * Please keep it
+ */
+ #if 0
+ struct cgnapt_table_entry *entry_ptr2 = NULL,
+ *entry_ptr4 = NULL;
+ #endif
+
+ if (unlikely(protocol == IP_PROTOCOL_UDP
+ && (rte_be_to_cpu_16(*dst_port) == 5060
+ || rte_be_to_cpu_16(*src_port) == 5060))) {
+ /* Commented code may be required for future usage,
+ * Please keep it
+ */
+ #if 0
+ int ret = natSipAlgGetAudioPorts(pkt,
+ &rtp_port, &rtcp_port);
+ if (ret < 0) {
+ printf("%s: Wrong SIP ALG packet1\n",
+ __func__);
+ p_nat->invalid_packets |= pkt_mask;
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ return;
+ }
+
+ if (rtp_port != 0) {
+ struct pipeline_cgnapt_entry_key rtp_key;
+ rtp_key.ip = entry->data.pub_ip;
+ rtp_key.port = rtp_port;
+ rtp_key.pid = 0xffff;
+
+ if (retrieve_cgnapt_entry_alg(&rtp_key,
+ &entry_ptr1, &entry_ptr2) == 0) {
+ printf("%s: Wrong SIP ALG packet2\n",
+ __func__);
+ p_nat->invalid_packets |= pkt_mask;
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ return;
+ }
+ }
+
+ if (rtcp_port != 0) {
+ struct pipeline_cgnapt_entry_key rtcp_key;
+ rtcp_key.ip = entry->data.pub_ip;
+ rtcp_key.port = rtcp_port;
+ rtcp_key.pid = 0xffff;
+
+ if (retrieve_cgnapt_entry_alg(&rtcp_key,
+ &entry_ptr3, &entry_ptr4) == 0) {
+ printf("%s: Wrong SIP ALG packet3\n",
+ __func__);
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ return;
+ }
+
+ }
+ #endif
+ if (sip_alg_dpi(pkt, PUBLIC,
+ entry->data.u.prv_ip,
+ entry->data.prv_port,
+ entry->data.pub_ip,
+ entry->data.pub_port,
+ (rtp_port == 0) ? 0 :
+ entry_ptr1->data.prv_port,
+ (rtcp_port == 0) ? 0 :
+ entry_ptr3->data.prv_port) == 0) {
+
+ printf("%s: Wrong SIP ALG packet4\n",
+ __func__);
+ p_nat->invalid_packets |= pkt_mask;
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ continue;
+ }
+ }
+ #endif /* SIP_ALG */
+
+ #ifdef FTP_ALG
+ if ((rte_be_to_cpu_16(*src_port) == 21) ||
+ rte_be_to_cpu_16(*dst_port) == 21) {
+
+ int32_t ct_position =
+ cgnat_cnxn_tracker->positions[pkt_num];
+ if (ct_position < 0){
+ p_nat->invalid_packets |= pkt_mask;
+
+ p_nat->naptDroppedPktCount++;
+ continue;
+ }
+ if (cgnat_cnxn_tracker->hash_table_entries
+ [ct_position].alg_bypass_flag != BYPASS){
+
+ struct pipeline_cgnapt_entry_key
+ data_channel_entry_key;
+
+ /*enable ALG DPI */
+ data_channel_entry_key.ip =
+ entry->data.pub_ip;
+ data_channel_entry_key.port =
+ entry->data.pub_port;
+ data_channel_entry_key.pid = 0xffff;
+
+ ftp_alg_dpi(p_nat, &data_channel_entry_key,
+ pkt, cgnat_cnxn_tracker,
+ ct_position, PUBLIC);
+
+ }
+ }
+ #endif
+ p_nat->inaptedPktCount++;
+ }
+
+ p_nat->naptedPktCount++;
+
+ #ifdef HW_CHECKSUM_REQ
+ if (p_nat->hw_checksum_reqd)
+ hw_checksum(pkt, pkt_type);
+ else
+ #endif
+ sw_checksum(pkt, pkt_type);
+ }
+}
+
+/**
+ * NAPT key calculation function for IPv6 private traffic
+ * which handles 1 pkt
+ *
+ * @param pkt
+ * A pointer to array of packets mbuf
+ * @param in_pkt_num
+ * Pkt number of pkts
+ * @param arg
+ * Void pointer
+ * @param p_nat
+ * A pointer to main CGNAPT structure
+ *
+ */
+void
+pkt_work_cgnapt_key_ipv6_prv(
+ struct rte_mbuf *pkt,
+ uint32_t pkt_num,
+ __rte_unused void *arg,
+ struct pipeline_cgnapt *p_nat)
+{
+ /* Egress */
+ p_nat->receivedPktCount++;
+
+ /* bitmask representing only this packet */
+ uint64_t pkt_mask = 1LLU << pkt_num;
+
+ uint8_t protocol = RTE_MBUF_METADATA_UINT8(pkt, PROT_OFST_IP6);
+ uint32_t *src_addr = RTE_MBUF_METADATA_UINT32_PTR(pkt,
+ SRC_ADR_OFST_IP6);
+ uint16_t src_port = RTE_MBUF_METADATA_UINT16(pkt, SRC_PRT_OFST_IP6);
+
+ uint16_t phy_port = pkt->port;
+ struct pipeline_cgnapt_entry_key key;
+
+ memset(&key, 0, sizeof(struct pipeline_cgnapt_entry_key));
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt);
+ #endif
+
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt, pkt_mask, p_nat))
+ return;
+ }
+
+ switch (protocol) {
+ case IP_PROTOCOL_UDP:
+ {
+ #ifdef PCP_ENABLE
+ if (pcp_enable) {
+ struct udp_hdr *udp;
+
+ udp = (struct udp_hdr *)
+ RTE_MBUF_METADATA_UINT8_PTR(pkt,
+ IPV6_UDP_OFST);
+
+ if (rte_bswap16(udp->dst_port) ==
+ PCP_SERVER_PORT) {
+ handle_pcp_req(pkt, IPV6_SZ, p_nat);
+ p_nat->invalid_packets |= pkt_mask;
+ return;
+ }
+ }
+ #endif
+ }
+ case IP_PROTOCOL_TCP:
+ case IP_PROTOCOL_ICMP:
+ /*we don't need icmp check in ipv6 */
+ break;
+
+ default:
+ printf("wrong protocol: %d\n", protocol);
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+ return;
+ }
+
+ key.pid = phy_port;
+ key.ip = rte_bswap32(src_addr[3]);
+ key.port = rte_bswap16(src_port);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key.port = 0xffff;
+ #endif
+
+ memcpy(&p_nat->keys[pkt_num], &key,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->key_ptrs[pkt_num] = &p_nat->keys[pkt_num];
+}
+
+/**
+ * NAPT key calculation function for IPv6 public traffic
+ * which handles 1 pkt
+ *
+ * @param pkt
+ * A pointer to array of packets mbuf
+ * @param in_pkt_num
+ * Pkt number of pkts
+ * @param arg
+ * Void pointer
+ * @param p_nat
+ * A pointer to main CGNAPT structure
+ *
+ */
+void
+pkt_work_cgnapt_key_ipv6_pub(
+ struct rte_mbuf *pkt,
+ uint32_t pkt_num,
+ __rte_unused void *arg,
+ struct pipeline_cgnapt *p_nat)
+{
+
+ /* Ingress */
+ p_nat->receivedPktCount++;
+
+ /* bitmask representing only this packet */
+ uint64_t pkt_mask = 1LLU << pkt_num;
+
+ uint8_t protocol = RTE_MBUF_METADATA_UINT8(pkt, PROT_OFST_IP4);
+
+ uint32_t *dst_addr = RTE_MBUF_METADATA_UINT32_PTR(pkt,
+ DST_ADR_OFST_IP4);
+ uint16_t dst_port = RTE_MBUF_METADATA_UINT16(pkt,
+ DST_PRT_OFST_IP4_TCP);
+
+ struct pipeline_cgnapt_entry_key key;
+
+ memset(&key, 0, sizeof(struct pipeline_cgnapt_entry_key));
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt);
+ #endif
+
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt, pkt_mask, p_nat))
+ return;
+ }
+
+ switch (protocol) {
+
+ case IP_PROTOCOL_UDP:
+ case IP_PROTOCOL_TCP:
+ case IP_PROTOCOL_ICMP:
+ /*we don't need icmp check in ipv6 */
+ break;
+
+ default:
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+ return;
+ }
+
+ key.pid = 0xffff;
+ key.ip = rte_bswap32(dst_addr[0]);
+ key.port = rte_bswap16(dst_port);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key.port = 0xffff;
+ #endif
+
+ memcpy(&p_nat->keys[pkt_num], &key,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->key_ptrs[pkt_num] = &p_nat->keys[pkt_num];
+}
+
+/**
+ * NAPT key calculation function for IPv6 private traffic
+ * which handles 4 pkts
+ *
+ * @param pkt
+ * A pointer to array of packets mbuf
+ * @param in_pkt_num
+ * Starting pkt number of pkts
+ * @param arg
+ * Void pointer
+ * @param p_nat
+ * A pointer to main CGNAPT structure
+ *
+ */
+void
+pkt4_work_cgnapt_key_ipv6_prv(
+ struct rte_mbuf **pkt,
+ uint32_t pkt_num,
+ __rte_unused void *arg,
+ struct pipeline_cgnapt *p_nat)
+{
+ p_nat->receivedPktCount += 4;
+
+ /* bitmask representing only this packet */
+ uint64_t pkt_mask0 = 1LLU << pkt_num;
+ uint64_t pkt_mask1 = 1LLU << (pkt_num + 1);
+ uint64_t pkt_mask2 = 1LLU << (pkt_num + 2);
+ uint64_t pkt_mask3 = 1LLU << (pkt_num + 3);
+
+ uint8_t protocol0 = RTE_MBUF_METADATA_UINT8(pkt[0],
+ PROT_OFST_IP6);
+ uint8_t protocol1 = RTE_MBUF_METADATA_UINT8(pkt[1],
+ PROT_OFST_IP6);
+ uint8_t protocol2 = RTE_MBUF_METADATA_UINT8(pkt[2],
+ PROT_OFST_IP6);
+ uint8_t protocol3 = RTE_MBUF_METADATA_UINT8(pkt[3],
+ PROT_OFST_IP6);
+
+ uint32_t *src_addr0 = RTE_MBUF_METADATA_UINT32_PTR(pkt[0],
+ SRC_ADR_OFST_IP6);
+ uint32_t *src_addr1 = RTE_MBUF_METADATA_UINT32_PTR(pkt[1],
+ SRC_ADR_OFST_IP6);
+ uint32_t *src_addr2 = RTE_MBUF_METADATA_UINT32_PTR(pkt[2],
+ SRC_ADR_OFST_IP6);
+ uint32_t *src_addr3 = RTE_MBUF_METADATA_UINT32_PTR(pkt[3],
+ SRC_ADR_OFST_IP6);
+
+ uint16_t src_port0 = RTE_MBUF_METADATA_UINT16(pkt[0],
+ SRC_PRT_OFST_IP6);
+ uint16_t src_port1 = RTE_MBUF_METADATA_UINT16(pkt[1],
+ SRC_PRT_OFST_IP6);
+ uint16_t src_port2 = RTE_MBUF_METADATA_UINT16(pkt[2],
+ SRC_PRT_OFST_IP6);
+ uint16_t src_port3 = RTE_MBUF_METADATA_UINT16(pkt[3],
+ SRC_PRT_OFST_IP6);
+
+ uint16_t phy_port0 = pkt[0]->port;
+ uint16_t phy_port1 = pkt[1]->port;
+ uint16_t phy_port2 = pkt[2]->port;
+ uint16_t phy_port3 = pkt[3]->port;
+
+ struct pipeline_cgnapt_entry_key key0;
+ struct pipeline_cgnapt_entry_key key1;
+ struct pipeline_cgnapt_entry_key key2;
+ struct pipeline_cgnapt_entry_key key3;
+
+ memset(&key0, 0, sizeof(struct pipeline_cgnapt_entry_key));
+ memset(&key1, 0, sizeof(struct pipeline_cgnapt_entry_key));
+ memset(&key2, 0, sizeof(struct pipeline_cgnapt_entry_key));
+ memset(&key3, 0, sizeof(struct pipeline_cgnapt_entry_key));
+
+
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt[0]);
+ #endif
+
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt[0], pkt_mask0, p_nat))
+ goto PKT1;
+ }
+
+ switch (protocol0) {
+
+ case IP_PROTOCOL_UDP:
+ {
+ #ifdef PCP_ENABLE
+ if (pcp_enable) {
+ struct udp_hdr *udp;
+
+ udp = (struct udp_hdr *)
+ RTE_MBUF_METADATA_UINT8_PTR(pkt[0],
+ IPV6_UDP_OFST);
+
+ if (rte_bswap16(udp->dst_port) ==
+ PCP_SERVER_PORT) {
+ handle_pcp_req(pkt[0], IPV6_SZ, p_nat);
+ p_nat->invalid_packets |= pkt_mask0;
+ goto PKT1;
+ }
+ }
+ #endif
+ }
+ case IP_PROTOCOL_TCP:
+ case IP_PROTOCOL_ICMP:
+ /*we don't need icmp check in ipv6 */
+ break;
+
+ default:
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask0;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+
+ goto PKT1;
+ }
+
+
+ key0.pid = phy_port0;
+ key0.ip = rte_bswap32(src_addr0[3]);
+ key0.port = rte_bswap16(src_port0);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key0.port = 0xffff;
+ #endif
+
+ memcpy(&p_nat->keys[pkt_num], &key0,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->key_ptrs[pkt_num] = &p_nat->keys[pkt_num];
+
+ PKT1:
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt[1]);
+ #endif
+
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt[1], pkt_mask1, p_nat))
+ goto PKT2;
+ }
+
+ switch (protocol1) {
+ case IP_PROTOCOL_UDP:
+ {
+ #ifdef PCP_ENABLE
+ if (pcp_enable) {
+ struct udp_hdr *udp;
+
+ udp = (struct udp_hdr *)
+ RTE_MBUF_METADATA_UINT8_PTR(pkt[1],
+ IPV6_UDP_OFST);
+
+ if (rte_bswap16(udp->dst_port) ==
+ PCP_SERVER_PORT) {
+ handle_pcp_req(pkt[1], IPV6_SZ, p_nat);
+ p_nat->invalid_packets |= pkt_mask1;
+ goto PKT2;
+ }
+ }
+ #endif
+ }
+ case IP_PROTOCOL_TCP:
+ case IP_PROTOCOL_ICMP:
+ /*we don't need icmp check in ipv6 */
+ break;
+
+ default:
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask1;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+
+ goto PKT2;
+ }
+
+ key1.pid = phy_port1;
+ key1.ip = rte_bswap32(src_addr1[3]);
+ key1.port = rte_bswap16(src_port1);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key1.port = 0xffff;
+ #endif
+
+ memcpy(&p_nat->keys[pkt_num + 1], &key1,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->key_ptrs[pkt_num + 1] = &p_nat->keys[pkt_num + 1];
+
+ PKT2:
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt[2]);
+ #endif
+
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt[2], pkt_mask2, p_nat))
+ goto PKT3;
+ }
+
+ switch (protocol2) {
+ case IP_PROTOCOL_UDP:
+ {
+ #ifdef PCP_ENABLE
+ if (pcp_enable) {
+ struct udp_hdr *udp;
+
+ udp = (struct udp_hdr *)
+ RTE_MBUF_METADATA_UINT8_PTR(pkt[2],
+ IPV6_UDP_OFST);
+
+ if (rte_bswap16(udp->dst_port) ==
+ PCP_SERVER_PORT) {
+ handle_pcp_req(pkt[2], IPV6_SZ, p_nat);
+ p_nat->invalid_packets |= pkt_mask2;
+ goto PKT3;
+ }
+ }
+ #endif
+ }
+ case IP_PROTOCOL_TCP:
+ case IP_PROTOCOL_ICMP:
+ /*we don't need icmp check in ipv6 */
+ break;
+
+ default:
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask2;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+
+ goto PKT3;
+ }
+
+ key2.pid = phy_port2;
+ key2.ip = rte_bswap32(src_addr2[3]);
+ key2.port = rte_bswap16(src_port2);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key2.port = 0xffff;
+ #endif
+
+ memcpy(&p_nat->keys[pkt_num + 2], &key2,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->key_ptrs[pkt_num + 2] = &p_nat->keys[pkt_num + 2];
+
+ PKT3:
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt[3]);
+ #endif
+
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt[3], pkt_mask3, p_nat))
+ return;
+ }
+
+ switch (protocol3) {
+ case IP_PROTOCOL_UDP:
+ {
+ #ifdef PCP_ENABLE
+ if (pcp_enable) {
+ struct udp_hdr *udp;
+
+ udp = (struct udp_hdr *)
+ RTE_MBUF_METADATA_UINT8_PTR(pkt[3],
+ IPV6_UDP_OFST);
+
+ if (rte_bswap16(udp->dst_port) ==
+ PCP_SERVER_PORT) {
+ handle_pcp_req(pkt[3], IPV6_SZ, p_nat);
+ p_nat->invalid_packets |= pkt_mask3;
+ return;
+ }
+ }
+ #endif
+ }
+ case IP_PROTOCOL_TCP:
+ case IP_PROTOCOL_ICMP:
+ /*we don't need icmp check in ipv6 */
+ break;
+
+ default:
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask2;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+
+ return;
+ }
+
+ key3.pid = phy_port3;
+ key3.ip = rte_bswap32(src_addr3[3]);
+ key3.port = rte_bswap16(src_port3);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key3.port = 0xffff;
+ #endif
+
+ memcpy(&p_nat->keys[pkt_num + 3], &key3,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->key_ptrs[pkt_num + 3] = &p_nat->keys[pkt_num + 3];
+
+
+}
+
+/**
+ * NAPT key calculation function for IPv4 public traffic
+ * which handles 4 pkts
+ *
+ * @param pkt
+ * A pointer to array of packets mbuf
+ * @param in_pkt_num
+ * Starting pkt number of pkts
+ * @param arg
+ * Void pointer
+ * @param p_nat
+ * A pointer to main CGNAPT structure
+ *
+ */
+void
+pkt4_work_cgnapt_key_ipv6_pub(
+ struct rte_mbuf **pkt,
+ uint32_t pkt_num,
+ __rte_unused void *arg,
+ struct pipeline_cgnapt *p_nat)
+{
+ p_nat->receivedPktCount += 4;
+
+ /* bitmask representing only this packet */
+ uint64_t pkt_mask0 = 1LLU << pkt_num;
+ uint64_t pkt_mask1 = 1LLU << (pkt_num + 1);
+ uint64_t pkt_mask2 = 1LLU << (pkt_num + 2);
+ uint64_t pkt_mask3 = 1LLU << (pkt_num + 3);
+
+ uint8_t protocol0 = RTE_MBUF_METADATA_UINT8(pkt[0],
+ PROT_OFST_IP4);
+ uint8_t protocol1 = RTE_MBUF_METADATA_UINT8(pkt[1],
+ PROT_OFST_IP4);
+ uint8_t protocol2 = RTE_MBUF_METADATA_UINT8(pkt[2],
+ PROT_OFST_IP4);
+ uint8_t protocol3 = RTE_MBUF_METADATA_UINT8(pkt[3],
+ PROT_OFST_IP4);
+
+ uint32_t *dst_addr0 = RTE_MBUF_METADATA_UINT32_PTR(pkt[0],
+ DST_ADR_OFST_IP4);
+ uint32_t *dst_addr1 = RTE_MBUF_METADATA_UINT32_PTR(pkt[1],
+ DST_ADR_OFST_IP4);
+ uint32_t *dst_addr2 = RTE_MBUF_METADATA_UINT32_PTR(pkt[2],
+ DST_ADR_OFST_IP4);
+ uint32_t *dst_addr3 = RTE_MBUF_METADATA_UINT32_PTR(pkt[3],
+ DST_ADR_OFST_IP4);
+
+ uint16_t dst_port0 = RTE_MBUF_METADATA_UINT16(pkt[0],
+ DST_PRT_OFST_IP4_TCP);
+ uint16_t dst_port1 = RTE_MBUF_METADATA_UINT16(pkt[1],
+ DST_PRT_OFST_IP4_TCP);
+ uint16_t dst_port2 = RTE_MBUF_METADATA_UINT16(pkt[2],
+ DST_PRT_OFST_IP4_TCP);
+ uint16_t dst_port3 = RTE_MBUF_METADATA_UINT16(pkt[3],
+ DST_PRT_OFST_IP4_TCP);
+
+ struct pipeline_cgnapt_entry_key key0;
+ struct pipeline_cgnapt_entry_key key1;
+ struct pipeline_cgnapt_entry_key key2;
+ struct pipeline_cgnapt_entry_key key3;
+
+ memset(&key0, 0, sizeof(struct pipeline_cgnapt_entry_key));
+ memset(&key1, 0, sizeof(struct pipeline_cgnapt_entry_key));
+ memset(&key2, 0, sizeof(struct pipeline_cgnapt_entry_key));
+ memset(&key3, 0, sizeof(struct pipeline_cgnapt_entry_key));
+
+/* --0-- */
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt[0]);
+ #endif
+
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt[0], pkt_mask0, p_nat))
+ goto PKT1;
+ }
+
+ switch (protocol0) {
+
+ case IP_PROTOCOL_TCP:
+ case IP_PROTOCOL_UDP:
+ case IP_PROTOCOL_ICMP:
+ /*we don't need icmp check in ipv6 */
+ break;
+
+ default:
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask0;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+ goto PKT1;
+ }
+
+ key0.pid = 0xffff;
+ key0.ip = rte_bswap32(dst_addr0[0]);
+ key0.port = rte_bswap16(dst_port0);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key0.port = 0xffff;
+ #endif
+
+ memcpy(&p_nat->keys[pkt_num], &key0,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->key_ptrs[pkt_num] = &p_nat->keys[pkt_num];
+
+
+/* --1-- */
+
+PKT1:
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt[1]);
+ #endif
+
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt[1], pkt_mask1, p_nat))
+ goto PKT2;
+ }
+
+ switch (protocol1) {
+
+ case IP_PROTOCOL_TCP:
+ case IP_PROTOCOL_UDP:
+ case IP_PROTOCOL_ICMP:
+ /*we don't need icmp check in ipv6 */
+ break;
+
+ default:
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask1;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+ goto PKT2;
+ }
+
+ key1.pid = 0xffff;
+ key1.ip = rte_bswap32(dst_addr1[0]);
+ key1.port = rte_bswap16(dst_port1);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key1.port = 0xffff;
+ #endif
+
+ memcpy(&p_nat->keys[pkt_num + 1], &key1,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->key_ptrs[pkt_num + 1] = &p_nat->keys[pkt_num + 1];
+
+
+/* --2-- */
+
+PKT2:
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt[2]);
+ #endif
+
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt[2], pkt_mask2, p_nat))
+ goto PKT3;
+ }
+
+ switch (protocol2) {
+
+ case IP_PROTOCOL_TCP:
+ case IP_PROTOCOL_UDP:
+ case IP_PROTOCOL_ICMP:
+ /*we don't need icmp check in ipv6 */
+ break;
+
+ default:
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask2;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+ goto PKT3;
+ }
+
+ key2.pid = 0xffff;
+ key2.ip = rte_bswap32(dst_addr2[0]);
+ key2.port = rte_bswap16(dst_port2);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key2.port = 0xffff;
+ #endif
+
+ memcpy(&p_nat->keys[pkt_num + 2], &key2,
+ sizeof(struct pipeline_cgnapt_entry_key));
+
+ p_nat->key_ptrs[pkt_num + 2] = &p_nat->keys[pkt_num + 2];
+
+
+/* --3-- */
+
+PKT3:
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 4)
+ print_pkt(pkt[3]);
+ #endif
+
+ if (enable_hwlb) {
+ if (!check_arp_icmp(pkt[3], pkt_mask3, p_nat))
+ return;
+ }
+
+ switch (protocol3) {
+
+ case IP_PROTOCOL_TCP:
+ case IP_PROTOCOL_UDP:
+ case IP_PROTOCOL_ICMP:
+ /*we don't need icmp check in ipv6 */
+ break;
+
+ default:
+ /* remember invalid packets to be dropped */
+ p_nat->invalid_packets |= pkt_mask3;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount2++;
+ #endif
+ return;
+ }
+
+ key3.pid = 0xffff;
+ key3.ip = rte_bswap32(dst_addr3[0]);
+ key3.port = rte_bswap16(dst_port3);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ key3.port = 0xffff;
+ #endif
+
+ memcpy(&p_nat->keys[pkt_num + 3], &key3,
+ sizeof(struct pipeline_cgnapt_entry_key));
+
+ p_nat->key_ptrs[pkt_num + 3] = &p_nat->keys[pkt_num + 3];
+}
+
+/**
+ * NAPT function for IPv6 private traffic which handles 1 pkt
+ *
+ * @param pkts
+ * A pointer to array of packet mbuf
+ * @param in_pkt_num
+ * Pkt number of pkt
+ * @param arg
+ * Void pointer
+ * @param p_nat
+ * A pointer to main CGNAPT structure
+ *
+ */
+void
+pkt_work_cgnapt_ipv6_prv(
+ struct rte_mbuf *pkt,
+ uint32_t pkt_num,
+ __rte_unused void *arg,
+ struct pipeline_cgnapt *p_nat)
+{
+
+ /* index into hash table entries */
+ int hash_table_entry = p_nat->lkup_indx[pkt_num];
+
+ /*bitmask representing only this packet */
+ uint64_t pkt_mask = 1LLU << pkt_num;
+
+ uint8_t protocol = RTE_MBUF_METADATA_UINT8(pkt, PROT_OFST_IP6);
+
+ /* Added for Multiport */
+ uint32_t dest_if = INVALID_DESTIF;
+ uint16_t *outport_id = RTE_MBUF_METADATA_UINT16_PTR(pkt,
+ cgnapt_meta_offset);
+
+ struct cgnapt_table_entry *entry = NULL;
+ enum PKT_TYPE pkt_type = PKT_TYPE_IPV6to4;
+
+ if (hash_table_entry < 0) {
+
+ /* try to add new entry */
+ struct rte_pipeline_table_entry *table_entry = NULL;
+
+ uint64_t dropmask = pkt_miss_cgnapt(p_nat->key_ptrs[pkt_num],
+ pkt, &table_entry,
+ &p_nat->valid_packets, pkt_num,
+ (void *)p_nat);
+
+ if (!table_entry) {
+ /* ICMP Error message generation for
+ * Destination Host unreachable
+ */
+ /* Do we need this check for ipv6? */
+ if (protocol == IP_PROTOCOL_ICMP) {
+ cgnapt_icmp_pkt = pkt;
+ send_icmp_dest_unreachable_msg();
+ }
+
+ /* Drop packet by adding to invalid pkt mask */
+
+ p_nat->invalid_packets |= dropmask;
+
+ #ifdef CGNAPT_DEBUGGING
+ if (p_nat->kpc2++ < 5) {
+ printf("in_ah Th: %d", p_nat->pipeline_num);
+ print_key(p_nat->key_ptrs[pkt_num]);
+ }
+ #endif
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount3++;
+ #endif
+
+ return;
+ }
+
+ entry = (struct cgnapt_table_entry *)table_entry;
+ } else {
+ /* entry found for this packet */
+ entry = &napt_hash_tbl_entries[hash_table_entry];
+ }
+
+ /* apply napt and mac changes */
+
+ p_nat->entries[pkt_num] = &(entry->head);
+
+ struct ipv6_hdr ipv6_hdr;
+
+ struct ether_addr hw_addr;
+ uint32_t dest_address = 0;
+ uint32_t nhip = 0;
+ /* Egress */
+ {
+
+ convert_ipv6_to_ipv4(pkt, &ipv6_hdr);
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG == 1)
+ printf("pkt_work_cganpt: convert_ipv6_to_ipv4\n");
+ #endif
+
+ struct cgnapt_nsp_node *ll = nsp_ll;
+ int nsp = 0;
+
+ while (ll != NULL) {
+ if (!memcmp
+ (&ipv6_hdr.dst_addr[0], &ll->nsp.prefix[0],
+ ll->nsp.depth / 8)) {
+ nsp = 1;
+ break;
+ }
+ ll = ll->next;
+ }
+
+ if (!nsp
+ && !memcmp(&ipv6_hdr.dst_addr[0], &well_known_prefix[0],
+ 12)) {
+ nsp = 1;
+ }
+
+ if (!nsp) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount5++;
+ #endif
+
+ return;
+ }
+
+ }
+
+ /* As packet is already converted into IPv4 we must not
+ * operate IPv6 offsets on packet
+ * Only perform IPv4 operations
+ */
+
+ uint32_t *src_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(pkt, SRC_ADR_OFST_IP6t4);
+ uint32_t *dst_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(pkt, DST_ADR_OFST_IP6t4);
+ uint16_t *src_port =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt, SRC_PRT_OFST_IP6t4);
+ uint16_t *dst_port =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt, DST_PRT_OFST_IP6t4);
+
+ uint8_t *eth_dest = RTE_MBUF_METADATA_UINT8_PTR(pkt,
+ ETH_OFST_IP6t4);
+ uint8_t *eth_src = RTE_MBUF_METADATA_UINT8_PTR(pkt,
+ ETH_OFST_IP6t4 + 6);
+
+ if (entry->data.ttl == NAPT_ENTRY_STALE)
+ entry->data.ttl = NAPT_ENTRY_VALID;
+ {
+ /* Egress */
+ if (unlikely(protocol == IP_PROTOCOL_UDP
+ && rte_be_to_cpu_16(*dst_port) == 53)) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+
+ return;
+ }
+
+ dest_address = rte_bswap32(*dst_addr);
+ /*Multiport Changes */
+ uint32_t nhip = 0;
+ uint32_t ret;
+ ret = local_get_nh_ipv4(dest_address, &dest_if, &nhip, p_nat);
+ if (!ret) {
+ dest_if = get_prv_to_pub_port(&dest_address, IP_VERSION_4);
+
+ if (dest_if == INVALID_DESTIF) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ return;
+ }
+
+ do_local_nh_ipv4_cache(dest_if, p_nat);
+ }
+ *outport_id = p_nat->outport_id[dest_if];
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2)
+ printf("Egress: \tphy_port:%d\t get_prv_to_pub():%d "
+ "\tout_port:%d\n", pkt->port,
+ dest_if, *outport_id);
+ #endif
+ }
+
+ #ifdef CGNAPT_DBG_PRNT
+ static int static_count;
+
+ if (static_count++ < 10) {
+ print_pkt(pkt);
+ my_print_entry(entry);
+ printf("dest-offset:%d\n", DST_ADR_OFST_IP4);
+ printf("dest_add:%x\n", entry->data.u.prv_ip);
+ printf("dest_add:%x\n", *dst_addr);
+ printf("DST_ADR_OFST_IP6:%d\n", DST_ADR_OFST_IP6);
+ }
+ #endif
+
+ if (local_dest_mac_present(dest_if)) {
+ memcpy(eth_dest,
+ get_local_link_hw_addr(dest_if),
+ sizeof(struct ether_addr));
+ memcpy(eth_src, get_link_hw_addr(dest_if),
+ sizeof(struct ether_addr));
+ } else {
+ int ret;
+ ret = get_dest_mac_addr_port(dest_address, &dest_if, &hw_addr);
+
+ if (unlikely(ret != ARP_FOUND)) {
+
+ if (unlikely(ret == ARP_NOT_FOUND)) {
+ printf("%s: ARP Not Found, nhip: %x, "
+ "outport_id: %d\n", __func__, nhip,
+ *outport_id);
+ //request_arp(*outport_id, nhip, p_nat->p.p);
+ }
+
+ /* Drop the pkt */
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ return;
+
+ }
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("MAC found for ip 0x%x, port %d - %02x:%02x: "
+ "%02x:%02x:%02x:%02x\n", dest_address,
+ *outport_id,
+ hw_addr.addr_bytes[0], hw_addr.addr_bytes[1],
+ hw_addr.addr_bytes[2], hw_addr.addr_bytes[3],
+ hw_addr.addr_bytes[4], hw_addr.addr_bytes[5]);
+
+ printf("Dest MAC before - %02x:%02x:%02x:%02x: "
+ "%02x:%02x\n", eth_dest[0], eth_dest[1],
+ eth_dest[2], eth_dest[3],
+ eth_dest[4], eth_dest[5]);
+ }
+ #endif
+
+ memcpy(eth_dest, &hw_addr, sizeof(struct ether_addr));
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("Dest MAC after - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ eth_dest[0], eth_dest[1], eth_dest[2], eth_dest[3],
+ eth_dest[4], eth_dest[5]);
+ }
+ #endif
+
+ memcpy(eth_src, get_link_hw_addr(dest_if),
+ sizeof(struct ether_addr));
+ }
+
+ {
+ /* Egress */
+ *src_addr = rte_bswap32(entry->data.pub_ip);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (!nat_only_config_flag) {
+ #endif
+ *src_port = rte_bswap16(entry->data.pub_port);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ }
+ #endif
+
+ p_nat->enaptedPktCount++;
+ }
+
+ p_nat->naptedPktCount++;
+
+ #ifdef HW_CHECKSUM_REQ
+ if (p_nat->hw_checksum_reqd)
+ hw_checksum(pkt, pkt_type);
+ else
+ #endif
+ sw_checksum(pkt, pkt_type);
+}
+
+
+/**
+ * NAPT function for IPv6 public traffic which handles 1 pkt
+ *
+ * @param pkts
+ * A pointer to array of packet mbuf
+ * @param in_pkt_num
+ * Pkt number of pkt
+ * @param arg
+ * Void pointer
+ * @param p_nat
+ * A pointer to main CGNAPT structure
+ *
+ */
+void
+pkt_work_cgnapt_ipv6_pub(
+ struct rte_mbuf *pkt,
+ uint32_t pkt_num,
+ __rte_unused void *arg,
+ struct pipeline_cgnapt *p_nat)
+{
+
+ /* index into hash table entries */
+ int hash_table_entry = p_nat->lkup_indx[pkt_num];
+ /*bitmask representing only this packet */
+ uint64_t pkt_mask = 1LLU << pkt_num;
+
+ uint8_t protocol = RTE_MBUF_METADATA_UINT8(pkt, PROT_OFST_IP4);
+
+ uint32_t dest_if = INVALID_DESTIF; /* Added for Multiport */
+ uint16_t *outport_id =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt, cgnapt_meta_offset);
+ struct cgnapt_table_entry *entry = NULL;
+
+ enum PKT_TYPE pkt_type = PKT_TYPE_IPV4to6;
+
+ if (hash_table_entry < 0) {
+
+ /* Drop ingress initial traffic */
+
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount3++;
+ if (p_nat->kpc2++ < 5) {
+ printf("in_ah Th: %d", p_nat->pipeline_num);
+ print_key(p_nat->key_ptrs[pkt_num]);
+ }
+ #endif
+
+ return;
+
+ } else {
+ /* entry found for this packet */
+ entry = &napt_hash_tbl_entries[hash_table_entry];
+ }
+
+ /* apply napt and mac changes */
+
+ p_nat->entries[pkt_num] = &(entry->head);
+ if (entry->data.type != CGNAPT_ENTRY_IPV6) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ return;
+ }
+
+ struct ipv4_hdr ipv4_hdr;
+ uint16_t *src_port =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt, SRC_PRT_OFST_IP4_TCP);
+
+ uint8_t *eth_dest = RTE_MBUF_METADATA_UINT8_PTR(pkt, MBUF_HDR_ROOM);
+ uint8_t *eth_src = RTE_MBUF_METADATA_UINT8_PTR(pkt, MBUF_HDR_ROOM + 6);
+
+ if (entry->data.ttl == NAPT_ENTRY_STALE)
+ entry->data.ttl = NAPT_ENTRY_VALID;
+
+ struct ether_addr hw_addr;
+ uint8_t dest_addr_ipv6[16];
+ uint8_t nh_ipv6[16];
+
+ /* Ingress */
+ {
+
+ if (unlikely(protocol == IP_PROTOCOL_UDP
+ && rte_be_to_cpu_16(*src_port) == 53)) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ return;
+ }
+
+ memcpy(&dest_addr_ipv6[0], &entry->data.u.prv_ipv6[0], 16);
+ uint8_t nhipv6[16];
+ int ret;
+ ret = local_get_nh_ipv6(&dest_addr_ipv6[0], &dest_if,
+ &nhipv6[0], p_nat);
+ if (!ret) {
+ dest_if = get_prv_to_pub_port((uint32_t *)
+ &dest_addr_ipv6[0],
+ IP_VERSION_6);
+
+ if (dest_if == INVALID_DESTIF) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ return;
+ }
+
+ do_local_nh_ipv6_cache(dest_if, p_nat);
+ }
+ *outport_id = p_nat->outport_id[dest_if];
+ }
+
+ #ifdef CGNAPT_DEBUGGING
+ static int static_count;
+
+ if (static_count++ < 10) {
+ print_pkt(pkt);
+ my_print_entry(entry);
+ printf("dest-offset:%d\n", DST_ADR_OFST_IP4);
+ printf("dest_add:%x\n", entry->data.u.prv_ip);
+ printf("DST_ADR_OFST_IP6:%d\n", DST_ADR_OFST_IP6);
+ }
+ #endif
+
+ memset(nh_ipv6, 0, 16);
+ if (get_dest_mac_address_ipv6_port(
+ &dest_addr_ipv6[0],
+ &dest_if,
+ &hw_addr,
+ &nh_ipv6[0])) {
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("MAC found for ip 0x%x, port %d - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ *((uint32_t *)dest_addr_ipv6 + 12),
+ *outport_id,
+ hw_addr.addr_bytes[0],
+ hw_addr.addr_bytes[1], hw_addr.addr_bytes[2],
+ hw_addr.addr_bytes[3], hw_addr.addr_bytes[4],
+ hw_addr.addr_bytes[5]);
+
+ printf("Dest MAC before - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ eth_dest[0], eth_dest[1], eth_dest[2],
+ eth_dest[3], eth_dest[4], eth_dest[5]);
+ }
+ #endif
+
+ memcpy(eth_dest, &hw_addr, sizeof(struct ether_addr));
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("Dest MAC after - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ eth_dest[0], eth_dest[1], eth_dest[2], eth_dest[3],
+ eth_dest[4], eth_dest[5]);
+ }
+ #endif
+
+ memcpy(eth_src, get_link_hw_addr(dest_if),
+ sizeof(struct ether_addr));
+ } else {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+
+ return;
+ }
+ /* Ingress */
+ {
+
+ convert_ipv4_to_ipv6(pkt, &ipv4_hdr);
+
+ /* Ethernet MTU check */
+ if ((rte_pktmbuf_data_len(pkt) - 14) > 1500) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ return;
+ }
+ uint32_t *dst_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(pkt, DST_ADR_OFST_IP4t6);
+ uint16_t *dst_port =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt, DST_PRT_OFST_IP4t6);
+
+ memcpy((uint8_t *) &dst_addr[0], &entry->data.u.prv_ipv6[0],
+ 16);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (!nat_only_config_flag) {
+ #endif
+ *dst_port = rte_bswap16(entry->data.prv_port);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ }
+ #endif
+
+ p_nat->inaptedPktCount++;
+ }
+
+ p_nat->naptedPktCount++;
+
+ #ifdef HW_CHECKSUM_REQ
+ if (p_nat->hw_checksum_reqd)
+ hw_checksum(pkt, pkt_type);
+ else
+ #endif
+ sw_checksum(pkt, pkt_type);
+}
+
+
+/**
+ * NAPT function for IPv6 private traffic which handles 4 pkts
+ *
+ * @param pkts
+ * A pointer to array of packets mbuf
+ * @param in_pkt_num
+ * Starting pkt number of pkts
+ * @param arg
+ * Void pointer
+ * @param p_nat
+ * A pointer to main CGNAPT structure
+ *
+ */
+void
+pkt4_work_cgnapt_ipv6_prv(
+ struct rte_mbuf **pkts,
+ uint32_t in_pkt_num,
+ __rte_unused void *arg,
+ struct pipeline_cgnapt *p_nat)
+{
+ struct rte_mbuf *pkt;
+ uint8_t i;
+ uint8_t pkt_num;
+
+ enum PKT_TYPE pkt_type = PKT_TYPE_IPV6to4;
+
+ for (i = 0; i < 4; i++) {
+ pkt_num = in_pkt_num + i;
+ pkt = pkts[i];
+
+ /* index into hash table entries */
+ int hash_table_entry = p_nat->lkup_indx[pkt_num];
+ /*bitmask representing only this packet */
+ uint64_t pkt_mask = 1LLU << pkt_num;
+
+ uint8_t protocol = RTE_MBUF_METADATA_UINT8(pkt, PROT_OFST_IP6);
+ uint32_t dest_if = INVALID_DESTIF;
+ uint16_t *outport_id =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt, cgnapt_meta_offset);
+ struct cgnapt_table_entry *entry = NULL;
+
+ if (hash_table_entry < 0) {
+
+ /* try to add new entry */
+ struct rte_pipeline_table_entry *table_entry = NULL;
+
+ uint64_t dropmask =
+ pkt_miss_cgnapt(p_nat->key_ptrs[pkt_num], pkt,
+ &table_entry,
+ &p_nat->valid_packets, pkt_num,
+ (void *)p_nat);
+
+ if (!table_entry) {
+ /* ICMP Error message generation for
+ * Destination Host unreachable
+ */
+ /* Do we need this check for ipv6? */
+ if (protocol == IP_PROTOCOL_ICMP) {
+ cgnapt_icmp_pkt = pkt;
+ send_icmp_dest_unreachable_msg();
+ }
+
+ /* Drop packet by adding to invalid pkt mask */
+
+ p_nat->invalid_packets |= dropmask;
+
+ #ifdef CGNAPT_DEBUGGING
+ if (p_nat->kpc2++ < 5) {
+ printf("in_ah Th: %d",
+ p_nat->pipeline_num);
+ print_key(p_nat->key_ptrs[pkt_num]);
+ }
+ #endif
+
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount3++;
+ #endif
+
+ continue;
+ }
+
+ entry = (struct cgnapt_table_entry *)table_entry;
+ } else {
+ /* entry found for this packet */
+ entry = &napt_hash_tbl_entries[hash_table_entry];
+ }
+
+ /* apply napt and mac changes */
+
+ p_nat->entries[pkt_num] = &(entry->head);
+
+ struct ipv6_hdr ipv6_hdr;
+ struct ether_addr hw_addr;
+ uint32_t dest_address = 0;
+ uint8_t nh_ipv6[16];
+ uint32_t nhip = 0;
+
+ /* Egress */
+ {
+ convert_ipv6_to_ipv4(pkt, &ipv6_hdr);
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG >= 1)
+ printf("pkt_work_cganpt: "
+ "convert_ipv6_to_ipv4\n");
+ #endif
+
+ struct cgnapt_nsp_node *ll = nsp_ll;
+ int nsp = 0;
+
+ while (ll != NULL) {
+ if (!memcmp(&ipv6_hdr.dst_addr[0],
+ &ll->nsp.prefix[0],
+ ll->nsp.depth / 8)) {
+ nsp = 1;
+ break;
+ }
+ ll = ll->next;
+ }
+
+ if (!nsp
+ && !memcmp(&ipv6_hdr.dst_addr[0],
+ &well_known_prefix[0], 12)) {
+ nsp = 1;
+ }
+
+ if (!nsp) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount5++;
+ #endif
+ continue;
+ }
+
+ }
+
+ /* As packet is already converted into IPv4 we must not
+ * operate IPv6 offsets on packet only perform IPv4 operations
+ */
+
+ uint32_t *src_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(pkt, SRC_ADR_OFST_IP6t4);
+ uint32_t *dst_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(pkt, DST_ADR_OFST_IP6t4);
+ uint16_t *src_port =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt, SRC_PRT_OFST_IP6t4);
+ uint16_t *dst_port =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt, DST_PRT_OFST_IP6t4);
+
+ uint8_t *eth_dest =
+ RTE_MBUF_METADATA_UINT8_PTR(pkt, ETH_OFST_IP6t4);
+ uint8_t *eth_src =
+ RTE_MBUF_METADATA_UINT8_PTR(pkt, ETH_OFST_IP6t4 + 6);
+
+ if (entry->data.ttl == NAPT_ENTRY_STALE)
+ entry->data.ttl = NAPT_ENTRY_VALID;
+
+ /* Egress */
+ {
+
+ if (unlikely(protocol == IP_PROTOCOL_UDP
+ && rte_be_to_cpu_16(*dst_port) == 53)) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ continue;
+ }
+
+ dest_address = rte_bswap32(*dst_addr);
+ uint32_t nhip;
+ uint32_t ret;
+ ret = local_get_nh_ipv4(dest_address, &dest_if, &nhip, p_nat);
+ if (!ret) {
+ dest_if = get_prv_to_pub_port(&dest_address, IP_VERSION_4);
+
+ if (dest_if == INVALID_DESTIF) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ continue;
+ }
+
+ do_local_nh_ipv4_cache(dest_if, p_nat);
+ }
+ *outport_id = p_nat->outport_id[dest_if];
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2)
+ printf("Egress: \tphy_port:%d\t"
+ "get_prv_to_pub():%d \tout_port:%d\n",
+ pkt->port, dest_if, *outport_id);
+ #endif
+ }
+
+ #ifdef CGNAPT_DEBUGGING
+ static int static_count;
+
+ if (static_count++ < 10) {
+ print_pkt(pkt);
+ my_print_entry(entry);
+ printf("dest-offset:%d\n", DST_ADR_OFST_IP4);
+ printf("dest_add:%x\n", entry->data.u.prv_ip);
+ printf("dest_add:%x\n", *dst_addr);
+ printf("DST_ADR_OFST_IP6:%d\n", DST_ADR_OFST_IP6);
+ }
+ #endif
+
+ memset(nh_ipv6, 0, 16);
+
+ {
+ int ret;
+ ret = get_dest_mac_addr_port(dest_address, &dest_if, &hw_addr);
+
+ if (unlikely(ret != ARP_FOUND)) {
+
+ if (unlikely(ret == ARP_NOT_FOUND)) {
+ /* Commented code may be required for debug
+ * and future use, Please keep it */
+ //request_arp(*outport_id, nhip, p_nat->p.p);
+ printf("%s: ARP Not Found, nhip: %x, "
+ "outport_id: %d\n", __func__, nhip,
+ *outport_id);
+ }
+
+ /* Drop the pkt */
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+ continue;
+
+ }
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("MAC found for ip 0x%x, port %d - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ dest_address, *outport_id,
+ hw_addr.addr_bytes[0],
+ hw_addr.addr_bytes[1],
+ hw_addr.addr_bytes[2],
+ hw_addr.addr_bytes[3],
+ hw_addr.addr_bytes[4],
+ hw_addr.addr_bytes[5]
+ );
+
+ printf("Dest MAC before - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ eth_dest[0], eth_dest[1], eth_dest[2],
+ eth_dest[3], eth_dest[4], eth_dest[5]);
+ }
+ #endif
+
+ memcpy(eth_dest, &hw_addr, sizeof(struct ether_addr));
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("Dest MAC after - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ eth_dest[0], eth_dest[1], eth_dest[2],
+ eth_dest[3], eth_dest[4], eth_dest[5]);
+ }
+ #endif
+
+ memcpy(eth_src,
+ get_link_hw_addr(dest_if),
+ sizeof(struct ether_addr));
+ }
+
+ {
+ /* Egress */
+ *src_addr = rte_bswap32(entry->data.pub_ip);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (!nat_only_config_flag) {
+ #endif
+ *src_port = rte_bswap16(entry->data.pub_port);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ }
+ #endif
+
+ p_nat->enaptedPktCount++;
+ }
+
+ p_nat->naptedPktCount++;
+
+ #ifdef HW_CHECKSUM_REQ
+ if (p_nat->hw_checksum_reqd)
+ hw_checksum(pkt, pkt_type);
+ else
+ #endif
+ sw_checksum(pkt, pkt_type);
+ }
+}
+
+/**
+ * NAPT function for IPv6 public traffic which handles 4 pkts
+ *
+ * @param pkts
+ * A pointer to array of packets mbuf
+ * @param in_pkt_num
+ * Starting pkt number of pkts
+ * @param arg
+ * Void pointer
+ * @param p_nat
+ * A pointer to main CGNAPT structure
+ *
+ */
+void
+pkt4_work_cgnapt_ipv6_pub(
+ struct rte_mbuf **pkts,
+ uint32_t in_pkt_num,
+ __rte_unused void *arg,
+ struct pipeline_cgnapt *p_nat)
+{
+ struct rte_mbuf *pkt;
+ uint8_t i;
+ uint8_t pkt_num;
+
+ enum PKT_TYPE pkt_type = PKT_TYPE_IPV4to6;
+
+ for (i = 0; i < 4; i++) {
+ pkt_num = in_pkt_num + i;
+ pkt = pkts[i];
+
+ /* index into hash table entries */
+ int hash_table_entry = p_nat->lkup_indx[pkt_num];
+ /*bitmask representing only this packet */
+ uint64_t pkt_mask = 1LLU << pkt_num;
+
+ uint8_t protocol = RTE_MBUF_METADATA_UINT8(pkt, PROT_OFST_IP4);
+ uint16_t *outport_id =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt, cgnapt_meta_offset);
+ struct cgnapt_table_entry *entry = NULL;
+
+ if (hash_table_entry < 0) {
+
+ /* Drop ingress initial traffic */
+
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount3++;
+ if (p_nat->kpc2++ < 5) {
+ printf("in_ah Th: %d", p_nat->pipeline_num);
+ print_key(p_nat->key_ptrs[pkt_num]);
+ }
+ #endif
+
+ continue;
+
+ } else {
+ /* entry found for this packet */
+ entry = &napt_hash_tbl_entries[hash_table_entry];
+ }
+
+ /* apply napt and mac changes */
+
+ p_nat->entries[pkt_num] = &(entry->head);
+ if (entry->data.type != CGNAPT_ENTRY_IPV6) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ continue;
+ }
+
+ struct ipv4_hdr ipv4_hdr;
+
+ uint16_t *src_port =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt, SRC_PRT_OFST_IP4_TCP);
+
+ uint8_t *eth_dest =
+ RTE_MBUF_METADATA_UINT8_PTR(pkt, MBUF_HDR_ROOM);
+ uint8_t *eth_src =
+ RTE_MBUF_METADATA_UINT8_PTR(pkt, MBUF_HDR_ROOM + 6);
+
+ if (entry->data.ttl == NAPT_ENTRY_STALE)
+ entry->data.ttl = NAPT_ENTRY_VALID;
+
+ struct ether_addr hw_addr;
+ uint8_t dest_addr_ipv6[16];
+ uint8_t nh_ipv6[16];
+ uint32_t dest_if = INVALID_DESTIF;
+ /* Ingress */
+ {
+
+ if (unlikely(protocol == IP_PROTOCOL_UDP
+ && rte_be_to_cpu_16(*src_port) == 53)) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ continue;
+ }
+
+ memcpy(&dest_addr_ipv6[0], &entry->data.u.prv_ipv6[0],
+ 16);
+ uint8_t nhipv6[16];
+ int ret;
+ ret = local_get_nh_ipv6(&dest_addr_ipv6[0], &dest_if,
+ &nhipv6[0], p_nat);
+ if (!ret) {
+ dest_if = get_prv_to_pub_port((uint32_t *)
+ &dest_addr_ipv6[0], IP_VERSION_6);
+
+ if (dest_if == INVALID_DESTIF) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount6++;
+ #endif
+ return;
+ }
+
+ do_local_nh_ipv6_cache(dest_if, p_nat);
+ }
+
+ *outport_id = p_nat->outport_id[dest_if];
+ }
+
+ #ifdef CGNAPT_DEBUGGING
+ static int static_count;
+
+ if (static_count++ < 10) {
+ print_pkt(pkt);
+ my_print_entry(entry);
+ printf("dest-offset:%d\n", DST_ADR_OFST_IP4);
+ printf("dest_add:%x\n", entry->data.u.prv_ip);
+ printf("DST_ADR_OFST_IP6:%d\n", DST_ADR_OFST_IP6);
+ }
+ #endif
+
+ memset(nh_ipv6, 0, 16);
+ if (get_dest_mac_address_ipv6
+ (&dest_addr_ipv6[0], &dest_if,
+ &hw_addr, &nh_ipv6[0])) {
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("MAC found for ip 0x%x, port %d - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ *((uint32_t *)dest_addr_ipv6 + 12),
+ *outport_id,
+ hw_addr.addr_bytes[0], hw_addr.addr_bytes[1],
+ hw_addr.addr_bytes[2], hw_addr.addr_bytes[3],
+ hw_addr.addr_bytes[4], hw_addr.addr_bytes[5]);
+
+ printf("Dest MAC before - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ eth_dest[0], eth_dest[1], eth_dest[2],
+ eth_dest[3], eth_dest[4], eth_dest[5]);
+ }
+ #endif
+
+ memcpy(eth_dest, &hw_addr, sizeof(struct ether_addr));
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("Dest MAC after - "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ eth_dest[0], eth_dest[1], eth_dest[2],
+ eth_dest[3], eth_dest[4], eth_dest[5]);
+ }
+ #endif
+
+ memcpy(eth_src,
+ get_link_hw_addr(dest_if),
+ sizeof(struct ether_addr));
+ } else {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->naptDroppedPktCount4++;
+ #endif
+
+ continue;
+ }
+
+ {
+ /* Ingress */
+
+ convert_ipv4_to_ipv6(pkt, &ipv4_hdr);
+
+ /* Ethernet MTU check */
+ if ((rte_pktmbuf_data_len(pkt) - 14) > 1500) {
+ p_nat->invalid_packets |= pkt_mask;
+ p_nat->naptDroppedPktCount++;
+ continue;
+ }
+ uint32_t *dst_addr = RTE_MBUF_METADATA_UINT32_PTR(pkt,
+ DST_ADR_OFST_IP4t6);
+ uint16_t *dst_port = RTE_MBUF_METADATA_UINT16_PTR(pkt,
+ DST_PRT_OFST_IP4t6);
+
+ memcpy((uint8_t *) &dst_addr[0],
+ &entry->data.u.prv_ipv6[0], 16);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (!nat_only_config_flag) {
+ #endif
+ *dst_port = rte_bswap16(entry->data.prv_port);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ }
+ #endif
+
+ p_nat->inaptedPktCount++;
+ }
+
+ p_nat->naptedPktCount++;
+
+ #ifdef HW_CHECKSUM_REQ
+ if (p_nat->hw_checksum_reqd)
+ hw_checksum(pkt, pkt_type);
+ else
+ #endif
+ sw_checksum(pkt, pkt_type);
+ }
+}
+
+/**
+ * Input port handler for IPv6 private traffic
+ * Starting from the packet burst it filters unwanted packets,
+ * calculates keys, does lookup and then based on the lookup
+ * updates NAPT table and does packet NAPT translation.
+ *
+ * @param rte_p
+ * A pointer to struct rte_pipeline
+ * @param pkts
+ * A pointer to array of packets mbuf
+ * @param n_pkts
+ * Number of packets in the burst
+ * @param arg
+ * Void pointer
+ *
+ * @return
+ * int that is not checked by caller
+ */
+static int cgnapt_in_port_ah_ipv6_prv(struct rte_pipeline *rte_p,
+ struct rte_mbuf **pkts,
+ uint32_t n_pkts, void *arg)
+{
+ uint32_t i, j;
+ struct pipeline_cgnapt_in_port_h_arg *ap = arg;
+ struct pipeline_cgnapt *p_nat = ap->p;
+
+ p_nat->pkt_burst_cnt = 0; /* for dynamic napt */
+ p_nat->valid_packets = rte_p->pkts_mask; /*n_pkts; */
+ p_nat->invalid_packets = 0;
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 1)
+ printf("cgnapt_key hit fn: %" PRIu32 "\n", n_pkts);
+ #endif
+
+ /* prefetching for mbufs should be done here */
+ for (j = 0; j < n_pkts; j++)
+ rte_prefetch0(pkts[j]);
+
+ for (i = 0; i < (n_pkts & (~0x3LLU)); i += 4)
+ pkt4_work_cgnapt_key_ipv6_prv(&pkts[i], i, arg, p_nat);
+
+ for (; i < n_pkts; i++)
+ pkt_work_cgnapt_key_ipv6_prv(pkts[i], i, arg, p_nat);
+
+ p_nat->valid_packets &= ~(p_nat->invalid_packets);
+
+ if (unlikely(p_nat->valid_packets == 0)) {
+ /* no suitable packet for lookup */
+ rte_pipeline_ah_packet_drop(rte_p, p_nat->invalid_packets);
+ return p_nat->valid_packets;
+ }
+
+ /* lookup entries in the common napt table */
+
+ int lookup_result = rte_hash_lookup_bulk(
+ napt_common_table,
+ (const void **) &p_nat->key_ptrs,
+ /* should be minus num invalid pkts */
+ n_pkts,
+ /*new pipeline data member */
+ &p_nat->lkup_indx[0]);
+
+ if (unlikely(lookup_result < 0)) {
+ /* unknown error, just discard all packets */
+ printf("Unexpected hash lookup error %d, "
+ "discarding all packets",
+ lookup_result);
+ rte_pipeline_ah_packet_drop(rte_p, p_nat->valid_packets);
+ return 0;
+ }
+
+ /* Now call second stage of pipeline to one by one
+ * check the result of our bulk lookup
+ */
+
+ /* prefetching for table entries should be done here */
+ for (j = 0; j < n_pkts; j++) {
+ if (p_nat->lkup_indx[j] >= 0)
+ rte_prefetch0(&napt_hash_tbl_entries
+ [p_nat->lkup_indx[j]]);
+ }
+
+ for (i = 0; i < (n_pkts & (~0x3LLU)); i += 4)
+ pkt4_work_cgnapt_ipv6_prv(&pkts[i], i, arg, p_nat);
+
+ for (; i < n_pkts; i++)
+ pkt_work_cgnapt_ipv6_prv(pkts[i], i, arg, p_nat);
+
+ if (p_nat->invalid_packets) {
+ /* get rid of invalid packets */
+ rte_pipeline_ah_packet_drop(rte_p, p_nat->invalid_packets);
+
+ p_nat->valid_packets &= ~(p_nat->invalid_packets);
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 1) {
+ printf("valid_packets:0x%jx\n", p_nat->valid_packets);
+ printf("rte_valid_packets :0x%jx\n", rte_p->pkts_mask);
+ printf("invalid_packets:0x%jx\n",
+ p_nat->invalid_packets);
+ printf("rte_invalid_packets :0x%jx\n",
+ rte_p->pkts_drop_mask);
+ printf("Total pkts dropped :0x%jx\n",
+ rte_p->n_pkts_ah_drop);
+ }
+ #endif
+ }
+
+ return p_nat->valid_packets;
+}
+
+
+/**
+ * Input port handler for IPv6 public traffic
+ * Starting from the packet burst it filters unwanted packets,
+ * calculates keys, does lookup and then based on the lookup
+ * updates NAPT table and does packet NAPT translation.
+ *
+ * @param rte_p
+ * A pointer to struct rte_pipeline
+ * @param pkts
+ * A pointer to array of packets mbuf
+ * @param n_pkts
+ * Number of packets in the burst
+ * @param arg
+ * Void pointer
+ *
+ * @return
+ * int that is not checked by caller
+ */
+static int cgnapt_in_port_ah_ipv6_pub(struct rte_pipeline *rte_p,
+ struct rte_mbuf **pkts,
+ uint32_t n_pkts, void *arg)
+{
+ uint32_t i, j;
+ struct pipeline_cgnapt_in_port_h_arg *ap = arg;
+ struct pipeline_cgnapt *p_nat = ap->p;
+
+ p_nat->pkt_burst_cnt = 0; /* for dynamic napt */
+ p_nat->valid_packets = rte_p->pkts_mask; /*n_pkts; */
+ p_nat->invalid_packets = 0;
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 1)
+ printf("cgnapt_key hit fn: %" PRIu32 "\n", n_pkts);
+ #endif
+
+ /* prefetching for mbufs should be done here */
+ for (j = 0; j < n_pkts; j++)
+ rte_prefetch0(pkts[j]);
+
+ for (i = 0; i < (n_pkts & (~0x3LLU)); i += 4)
+ pkt4_work_cgnapt_key_ipv6_pub(&pkts[i], i, arg, p_nat);
+
+ for (; i < n_pkts; i++)
+ pkt_work_cgnapt_key_ipv6_pub(pkts[i], i, arg, p_nat);
+
+ p_nat->valid_packets &= ~(p_nat->invalid_packets);
+
+ if (unlikely(p_nat->valid_packets == 0)) {
+ /* no suitable packet for lookup */
+ rte_pipeline_ah_packet_drop(rte_p, p_nat->invalid_packets);
+ return p_nat->valid_packets;
+ }
+
+ /* lookup entries in the common napt table */
+
+ int lookup_result = rte_hash_lookup_bulk(
+ napt_common_table,
+ (const void **) &p_nat->key_ptrs,
+ /* should be minus num invalid pkts */
+ n_pkts,
+ /*new pipeline data member */
+ &p_nat->lkup_indx[0]);
+
+ if (unlikely(lookup_result < 0)) {
+ /* unknown error, just discard all packets */
+ printf("Unexpected hash lookup error %d, "
+ "discarding all packets",
+ lookup_result);
+ rte_pipeline_ah_packet_drop(rte_p, p_nat->valid_packets);
+ return 0;
+ }
+
+ /* Now call second stage of pipeline to one by one
+ * check the result of our bulk lookup
+ */
+
+ /* prefetching for table entries should be done here */
+ for (j = 0; j < n_pkts; j++) {
+ if (p_nat->lkup_indx[j] >= 0)
+ rte_prefetch0(&napt_hash_tbl_entries
+ [p_nat->lkup_indx[j]]);
+ }
+
+ for (i = 0; i < (n_pkts & (~0x3LLU)); i += 4)
+ pkt4_work_cgnapt_ipv6_pub(&pkts[i], i, arg, p_nat);
+
+ for (; i < n_pkts; i++)
+ pkt_work_cgnapt_ipv6_pub(pkts[i], i, arg, p_nat);
+
+ if (p_nat->invalid_packets) {
+ /* get rid of invalid packets */
+ rte_pipeline_ah_packet_drop(rte_p, p_nat->invalid_packets);
+
+ p_nat->valid_packets &= ~(p_nat->invalid_packets);
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 1) {
+ printf("valid_packets:0x%jx\n", p_nat->valid_packets);
+ printf("rte_valid_packets :0x%jx\n", rte_p->pkts_mask);
+ printf("invalid_packets:0x%jx\n",
+ p_nat->invalid_packets);
+ printf("rte_invalid_packets :0x%jx\n",
+ rte_p->pkts_drop_mask);
+ printf("Total pkts dropped :0x%jx\n",
+ rte_p->n_pkts_ah_drop);
+ }
+ #endif
+ }
+
+ return p_nat->valid_packets;
+}
+
+/**
+ * Function to send ICMP dest unreachable msg
+ *
+ */
+void send_icmp_dest_unreachable_msg(void)
+{
+
+ struct ether_hdr *eth_h;
+ struct ipv4_hdr *ip_h;
+ struct icmp_hdr *icmp_h;
+ struct rte_mbuf *icmp_pkt = cgnapt_icmp_pkt;
+
+ if (icmp_pkt == NULL) {
+ if (ARPICMP_DEBUG)
+ printf("Error allocating icmp_pkt rte_mbuf\n");
+ return;
+ }
+ uint16_t port_id;
+ port_id = icmp_pkt->port;
+
+ struct app_link_params *link;
+ link = &mylink[port_id];
+ eth_h = rte_pktmbuf_mtod(icmp_pkt, struct ether_hdr *);
+ ip_h = (struct ipv4_hdr *)((char *)eth_h + sizeof(struct ether_hdr));
+ icmp_h = (struct icmp_hdr *)((char *)ip_h + sizeof(struct ipv4_hdr));
+
+ struct ether_addr gw_addr;
+ struct ether_addr dst_addr;
+ ether_addr_copy(ð_h->s_addr, &dst_addr);
+ rte_eth_macaddr_get(port_id, &gw_addr);
+ ether_addr_copy(&gw_addr, ð_h->s_addr);
+ ether_addr_copy(&dst_addr, ð_h->d_addr);
+
+ eth_h->ether_type = CHECK_ENDIAN_16(ETHER_TYPE_IPv4);
+ ip_h->version_ihl = IP_VHL_DEF;
+ ip_h->type_of_service = 0;
+ ip_h->total_length = rte_cpu_to_be_16(sizeof(struct ipv4_hdr) +
+ sizeof(struct icmp_hdr));
+ ip_h->packet_id = 0xaabb;
+ ip_h->fragment_offset = 0x0000;
+ ip_h->time_to_live = 64;
+ ip_h->next_proto_id = 1;
+
+ uint32_t *src_addr;
+ uint32_t src_addr_offset =
+ MBUF_HDR_ROOM + ETH_HDR_SIZE + IP_HDR_SRC_ADR_OFST;
+ src_addr =
+ RTE_MBUF_METADATA_UINT32_PTR(cgnapt_icmp_pkt, src_addr_offset);
+
+ ip_h->dst_addr = *src_addr;
+ ip_h->src_addr = rte_bswap32(link->ip);
+
+ ip_h->dst_addr = *src_addr;
+ ip_h->src_addr = rte_bswap32(link->ip);
+
+ ip_h->hdr_checksum = 0;
+ ip_h->hdr_checksum = rte_ipv4_cksum(ip_h);
+ icmp_h->icmp_type = 3; /* Destination Unreachable */
+ icmp_h->icmp_code = 13; /* Communication administratively prohibited */
+
+ icmp_h->icmp_cksum = ~rte_raw_cksum(icmp_h, sizeof(struct icmp_hdr));
+
+ icmp_pkt->pkt_len = sizeof(struct ether_hdr) + sizeof(struct ipv4_hdr) +
+ sizeof(struct icmp_hdr);
+ icmp_pkt->data_len = icmp_pkt->pkt_len;
+ if (ARPICMP_DEBUG) {
+ printf("Sending ICMP error message - "
+ "Destination Unreachable\n");
+ }
+ rte_pipeline_port_out_packet_insert(myP, port_id, icmp_pkt);
+}
+
+/**
+ * Function to add a dynamic NAPT entry pair
+ *
+ * @param p
+ * A pointer to struct pipeline
+ * @param key
+ * A pointer to struct pipeline_cgnapt_entry_key
+ * @param time_out
+ * expairy time of an dynamic or PCP req entry
+ * @param src_addr
+ * uint8_t pointer of source address
+ *
+ * @return
+ * A pointer to struct cgnapt_table_entry for added entry
+ */
+
+struct cgnapt_table_entry *add_dynamic_cgnapt_entry(
+ struct pipeline *p,
+ struct pipeline_cgnapt_entry_key *key,
+ uint32_t timeout,
+ uint8_t pkt_type,
+ uint8_t *src_addr,
+ uint8_t *err)
+{
+ int port_num = 0;
+ void *entry_ptr, *ret_ptr;
+ int ret = 0, i;
+
+ struct pipeline_cgnapt *p_nat = (struct pipeline_cgnapt *)p;
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG >= 1) {
+ printf("Th%d add_dynamic_cgnapt_entry key detail Entry:"
+ "0x%x, %d, %d\n", p_nat->pipeline_num, key->ip, key->port,
+ key->pid);
+ }
+ #endif
+
+ for (i = 0; i < RTE_PORT_IN_BURST_SIZE_MAX && i < p_nat->pkt_burst_cnt;
+ i++) {
+ if (p_nat->cgnapt_dyn_ent_table[i].ip == key->ip
+ && p_nat->cgnapt_dyn_ent_table[i].port == key->port
+ && p_nat->cgnapt_dyn_ent_table[i].pid == key->pid) {
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 1)
+ printf("add_dynamic_cgnapt_entry:pkt_burst "
+ "array key matched!!!\n");
+ #endif
+
+ return &napt_hash_tbl_entries
+ [p_nat->cgnapt_dyn_ent_index[i]];
+ }
+ }
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (!nat_only_config_flag) {
+ #endif
+
+ ret = increment_max_port_counter(key->ip, key->pid, p_nat);
+ if (ret == MAX_PORT_INC_ERROR) {
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->missedpktcount5++;
+ #endif
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 1)
+ printf("add_dynamic_cgnapt_entry:"
+ "increment_max_port_counter-1 failed\n");
+ #endif
+
+ *err = 1;
+ return NULL;
+ }
+
+ if (ret == MAX_PORT_INC_REACHED) {
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->missedpktcount6++;
+ #endif
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 1)
+ printf("add_dynamic_cgnapt_entry:"
+ "increment_max_port_counter-2 failed\n");
+ #endif
+
+ *err = 1;
+ return NULL;
+ }
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ }
+ #endif
+
+ uint32_t public_ip;
+ port_num = get_free_iport(p_nat, &public_ip);
+
+ if (port_num == -1) {
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2) {
+ printf("add_dynamic_cgnapt_entry: %d\n", port_num);
+ printf("add_dynamic_cgnapt_entry key detail:0x%x, "
+ "%d, %d\n", key->ip, key->port, key->pid);
+ }
+ #endif
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->missedpktcount7++;
+ #endif
+
+ *err = 1;
+ return NULL;
+ }
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (!nat_only_config_flag) {
+ #endif
+
+ if (ret == 2) { //MPPC_NEW_ENTRY
+
+ /* check for max_clients_per_ip */
+ if (rte_atomic16_read
+ (&all_public_ip
+ [rte_jhash(&public_ip, 4, 0) %
+ CGNAPT_MAX_PUB_IP].count) ==
+ p_nat->max_clients_per_ip) {
+
+ /* For now just bail out
+ * In future we can think about
+ * retrying getting a new iport
+ */
+
+ release_iport(port_num, public_ip, p_nat);
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->missedpktcount10++;
+ #endif
+ *err = 1;
+ return NULL;
+ }
+
+ rte_atomic16_inc(&all_public_ip
+ [rte_jhash(&public_ip, 4, 0) %
+ CGNAPT_MAX_PUB_IP].count);
+
+ #ifdef CGNAPT_DBG_PRNT
+ if ((rte_jhash(&public_ip, 4, 0) %
+ CGNAPT_MAX_PUB_IP) == 8)
+ printf("pub ip:%x coutn:%d\n", public_ip,
+ rte_atomic16_read(&all_public_ip
+ [rte_jhash(&public_ip, 4, 0) %
+ CGNAPT_MAX_PUB_IP].count));
+ #endif
+
+ }
+ #ifdef NAT_ONLY_CONFIG_REQ
+ }
+ #endif
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 0) {
+ printf("add_dynamic_cgnapt_entry: %d\n",
+ port_num);
+ printf("add_dynamic_cgnapt_entry key detail: "
+ "0x%x, %d, %d\n", key->ip, key->port, key->pid);
+ }
+ #endif
+
+ struct cgnapt_table_entry entry = {
+ .head = {
+ .action = RTE_PIPELINE_ACTION_PORT,
+ /* made it configurable below */
+ {.port_id = p->port_out_id[0]},
+ },
+
+ .data = {
+ .prv_port = key->port,
+ .pub_ip = public_ip,
+ .pub_port = port_num,
+ .prv_phy_port = key->pid,
+ .pub_phy_port = get_pub_to_prv_port(
+ &public_ip,
+ IP_VERSION_4),
+ .ttl = 0,
+ /* if(timeout == -1) : static entry
+ * if(timeout == 0 ) : dynamic entry
+ * if(timeout > 0 ) : PCP requested entry
+ */
+ .timeout = timeout > 0 ? timeout : 0,
+ #ifdef PCP_ENABLE
+ .timer = NULL,
+ #endif
+ }
+ };
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag) {
+ entry.data.prv_port = 0xffff;
+ entry.data.pub_port = 0xffff;
+ }
+ #endif
+
+ if (pkt_type == CGNAPT_ENTRY_IPV6) {
+ entry.data.type = CGNAPT_ENTRY_IPV6;
+ memcpy(&entry.data.u.prv_ipv6[0], src_addr, 16);
+ } else {
+ entry.data.u.prv_ip = key->ip;
+ entry.data.type = CGNAPT_ENTRY_IPV4;
+ }
+
+ //entry.head.port_id = CGNAPT_PUB_PORT_ID; /* outgoing port info */
+ entry.head.port_id = entry.data.pub_phy_port; /* outgoing port info */
+
+ struct pipeline_cgnapt_entry_key second_key;
+ /* Need to add a second ingress entry */
+ second_key.ip = public_ip;
+ second_key.port = port_num;
+ second_key.pid = 0xffff;
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ second_key.port = 0xffff;
+ #endif
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2)
+ printf("add_dynamic_cgnapt_entry second key detail:"
+ "0x%x, %d, %d\n", second_key.ip, second_key.port,
+ second_key.pid);
+ #endif
+
+ int32_t position = rte_hash_add_key(napt_common_table, (void *)key);
+
+ if (position < 0) {
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->missedpktcount8++;
+ #endif
+
+ printf("CG-NAPT entry add failed ...returning "
+ "without adding ... %d\n", position);
+ *err = 1;
+ return NULL;
+ }
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG) {
+ printf("add_dynamic_cgnapt_entry\n");
+ print_key(key);
+ print_cgnapt_entry(&entry);
+ }
+ #endif
+
+ memcpy(&napt_hash_tbl_entries[position], &entry,
+ sizeof(struct cgnapt_table_entry));
+
+ /* this pointer is returned to pkt miss function */
+ ret_ptr = &napt_hash_tbl_entries[position];
+
+ p_nat->n_cgnapt_entry_added++;
+ p_nat->dynCgnaptCount++;
+
+ /* Now modify the forward port for reverse entry */
+
+ /* outgoing port info */
+ //entry.head.port_id = CGNAPT_PRV_PORT_ID;
+ /* outgoing port info */
+ entry.head.port_id = entry.data.prv_phy_port;
+
+ int32_t position2 = rte_hash_add_key(napt_common_table, &second_key);
+
+ if (position2 < 0) {
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->missedpktcount9++;
+ #endif
+ printf("CG-NAPT entry reverse bulk add failed ..."
+ "returning with fwd add ...%d\n",
+ position2);
+ *err = 1;
+ return NULL;
+ }
+
+ memcpy(&napt_hash_tbl_entries[position2], &entry,
+ sizeof(struct cgnapt_table_entry));
+
+ entry_ptr = &napt_hash_tbl_entries[position2];
+
+ timer_thread_enqueue(key, &second_key, ret_ptr,
+ entry_ptr, (struct pipeline *)p_nat);
+
+ p_nat->n_cgnapt_entry_added++;
+ p_nat->dynCgnaptCount++;
+
+ if (p_nat->pkt_burst_cnt < RTE_PORT_IN_BURST_SIZE_MAX) {
+ memcpy(&p_nat->cgnapt_dyn_ent_table[p_nat->pkt_burst_cnt], key,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ p_nat->cgnapt_dyn_ent_index[p_nat->pkt_burst_cnt] = position;
+ p_nat->pkt_burst_cnt++;
+ }
+ return ret_ptr;
+}
+
+int pkt_miss_cgnapt_count;
+/**
+ * Function handle a missed NAPT entry lookup
+ * Will attempt to add a dynamic entry pair.
+ *
+ * @param p
+ * A pointer to struct pipeline
+ * @param key
+ * A pointer to struct pipeline_cgnapt_entry_key
+ * @param pkt
+ * A pointer to pkt struct rte_mbuf
+ * @param pkt_mask
+ * uint64_t pointer to pkt mask
+ * @param table_entry
+ * A pointer to struct rte_pipeline_table_entry to be created and returned
+ * @param pkt_num
+ * number of this pkt in current burst
+ *
+ * @return
+ * A uint64_t mask for drop packets
+ */
+uint64_t
+pkt_miss_cgnapt(struct pipeline_cgnapt_entry_key *key,
+ struct rte_mbuf *pkt,
+ struct rte_pipeline_table_entry **table_entry,
+ __rte_unused uint64_t *pkts_mask,
+ uint32_t pkt_num, void *arg)
+{
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 0)
+ printf("\n pkt_miss_cgnapt\n");
+ #endif
+ /* In egress case
+ * get src address
+ * see if get_port passes for this src address
+ * if passed add a new egress entry and a
+ * corresponding new ingress entry
+ * return the fwd entry to calling function using input pointer
+ * else if get_port fails drop packet
+ */
+
+ struct pipeline_cgnapt *p_nat = (struct pipeline_cgnapt *)arg;
+
+ uint32_t eth_proto_offset = MBUF_HDR_ROOM + 12;
+ uint32_t src_addr_offset_ipv6 =
+ MBUF_HDR_ROOM + ETH_HDR_SIZE + IPV6_HDR_SRC_ADR_OFST;
+ uint16_t phy_port = pkt->port;
+
+ uint16_t *eth_proto =
+ RTE_MBUF_METADATA_UINT16_PTR(pkt, eth_proto_offset);
+
+ uint8_t *src_addr = NULL;
+ uint8_t src_addr_ipv6[16];
+ uint8_t pkt_type = CGNAPT_ENTRY_IPV4;
+ /* To drop the packet */
+ uint64_t drop_mask = 0;
+
+ if (p_nat->is_static_cgnapt) {
+ drop_mask |= 1LLU << pkt_num;
+ p_nat->missedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->missedpktcount1++;
+ #endif
+ return drop_mask;
+ }
+
+ if (rte_be_to_cpu_16(*eth_proto) == ETHER_TYPE_IPv6) {
+ src_addr =
+ RTE_MBUF_METADATA_UINT8_PTR(pkt, src_addr_offset_ipv6);
+ pkt_type = CGNAPT_ENTRY_IPV6;
+ memcpy(src_addr_ipv6, src_addr, 16);
+ }
+
+ uint8_t err = 0;
+
+ /* some validation first */
+ if (is_phy_port_privte(phy_port)) {
+ /* dynamic NAPT entry creation */
+ *table_entry = (struct rte_pipeline_table_entry *)
+ add_dynamic_cgnapt_entry(
+ (struct pipeline *)&p_nat->p,
+ key,
+ DYNAMIC_CGNAPT_TIMEOUT,
+ pkt_type,
+ src_addr_ipv6, &err);
+
+ if (!(*table_entry)) {
+ if (err) {
+ drop_mask |= 1LLU << pkt_num;
+ p_nat->missedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->missedpktcount2++;
+ #endif
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 1)
+ printf("Add Dynamic NAT entry failed "
+ "in pkt!!!\n");
+ #endif
+ } else {
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->missedpktcount11++;
+ #endif
+ }
+
+ }
+
+ } else if (!is_phy_port_privte(phy_port)) {
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG >= 2) {
+ printf("Initial Ingress entry creation NOT ALLOWED "
+ "%d\n", phy_port);
+ }
+ #endif
+
+ drop_mask |= 1LLU << pkt_num;
+ p_nat->missedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->missedpktcount3++;
+ #endif
+ } else {
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 1)
+ printf("NOT a PRIVATE or PUBLIC port!!!!!\n");
+ #endif
+
+ drop_mask |= 1LLU << pkt_num;
+ p_nat->missedPktCount++;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->missedpktcount4++;
+ #endif
+ }
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 5)
+ print_pkt(pkt);
+ #endif
+
+ return drop_mask;
+}
+
+int numprints;
+
+/**
+ * Function to print the contents of a packet
+ *
+ * @param pkt
+ * A pointer to pkt struct rte_mbuf
+ */
+void print_pkt(struct rte_mbuf *pkt)
+{
+ int i = 0, j = 0;
+
+ printf("\nPacket Contents:\n");
+
+ uint8_t *rd = RTE_MBUF_METADATA_UINT8_PTR(pkt, 0);
+
+ for (i = 0; i < 20; i++) {
+ for (j = 0; j < 20; j++)
+ printf("%02x ", rd[(20 * i) + j]);
+
+ printf("\n");
+ }
+}
+
+rte_table_hash_op_hash cgnapt_hash_func[] = {
+ hash_default_key8,
+ hash_default_key16,
+ hash_default_key24,
+ hash_default_key32,
+ hash_default_key40,
+ hash_default_key48,
+ hash_default_key56,
+ hash_default_key64
+};
+
+/**
+ * Function to parse incoming pipeline arguments
+ * Called during pipeline initialization
+ *
+ * @param p
+ * A pointer to struct pipeline_cgnapt
+ * @param params
+ * A pointer to struct pipeline_params
+ *
+ * @return
+ * 0 if success, negative if failure
+ */
+static int
+pipeline_cgnapt_parse_args(struct pipeline_cgnapt *p,
+ struct pipeline_params *params)
+{
+ uint32_t n_flows_present = 0;
+ uint32_t key_offset_present = 0;
+ uint32_t key_size_present = 0;
+ uint32_t hash_offset_present = 0;
+ uint32_t n_entries_present = 0;
+ uint32_t max_port_present = 0;
+ uint32_t max_client_present = 0;
+ uint32_t public_ip_range_present = 0;
+ uint32_t public_ip_port_range_present = 0;
+ uint32_t i;
+ uint8_t public_ip_count = 0;
+ uint8_t public_ip_range_count = 0;
+ uint8_t dest_if_offset_present = 0;
+ uint8_t cgnapt_meta_offset_present = 0;
+ uint8_t prv_que_handler_present = 0;
+ uint8_t n_prv_in_port = 0;
+
+ if (CGNAPT_DEBUG > 2) {
+ printf("CGNAPT pipeline_cgnapt_parse_args params->n_args: %d\n",
+ params->n_args);
+ }
+ for (i = 0; i < params->n_args; i++) {
+ char *arg_name = params->args_name[i];
+ char *arg_value = params->args_value[i];
+
+ if (CGNAPT_DEBUG > 2) {
+ printf("CGNAPT args[%d]: %s %d, %s\n", i, arg_name,
+ atoi(arg_value), arg_value);
+ }
+ if (strcmp(arg_name, "prv_que_handler") == 0) {
+
+ if (prv_que_handler_present) {
+ printf("Duplicate pktq_in_prv ..\n\n");
+ return -1;
+ }
+ prv_que_handler_present = 1;
+ n_prv_in_port = 0;
+
+ char *token;
+ int rxport = 0;
+ /* get the first token */
+ token = strtok(arg_value, "(");
+ token = strtok(token, ")");
+ token = strtok(token, ",");
+ printf("***** prv_que_handler *****\n");
+
+ if (token == NULL) {
+ printf("string is null\n");
+ printf("invalid prv_que_handler value/n");
+ return -1;
+ }
+ printf("string is :%s\n", token);
+
+ /* walk through other tokens */
+ while (token != NULL) {
+ printf(" %s\n", token);
+ rxport = atoi(token);
+ cgnapt_prv_que_port_index[n_prv_in_port++] =
+ rxport;
+ if (rxport < PIPELINE_MAX_PORT_IN)
+ cgnapt_in_port_egress_prv[rxport] = 1;
+ token = strtok(NULL, ",");
+ }
+
+ if (n_prv_in_port == 0) {
+ printf("VNF common parse err - "
+ "no prv RX phy port\n");
+ return -1;
+ }
+ continue;
+ }
+
+ if (strcmp(arg_name, "cgnapt_meta_offset") == 0) {
+ if (cgnapt_meta_offset_present) {
+ printf("CG-NAPT parse error:");
+ printf("cgnapt_meta_offset initizlized "
+ "mulitple times\n");
+ return -1;
+ }
+ cgnapt_meta_offset_present = 1;
+ int temp;
+ temp = atoi(arg_value);
+
+ if (temp > 256) {
+ printf("cgnapt_meta_offset is invalid :");
+ printf("Not be more than metadata size\n");
+ return -1;
+ }
+ cgnapt_meta_offset = (uint16_t) temp;
+ }
+ if (strcmp(arg_name, "vnf_set") == 0)
+ vnf_set_count++;
+
+ if (strcmp(arg_name, "public_ip_range") == 0) {
+ public_ip_range_present = 1;
+ if (public_ip_port_range_present) {
+ printf("CG-NAPT parse error:");
+ printf("public_ip_range with "
+ "public_ip_port_range_present\n");
+ return -1;
+ }
+
+ p->pub_ip_range = rte_realloc(p->pub_ip_range,
+ sizeof(struct
+ pub_ip_range),
+ RTE_CACHE_LINE_SIZE);
+
+ if (!p->pub_ip_range) {
+ printf("Memory allocation failed for "
+ "pub_ip_range\n");
+ return -1;
+ }
+
+ uint32_t sip = 0, eip = 0;
+
+ if (sscanf(arg_value, "(%x,%x)", &sip, &eip) != 2) {
+ printf("public_ip_range is invalid\n");
+ return -1;
+ }
+
+ if (sip <= 0 || eip <= 0 || sip >= eip) {
+ printf("public_ip_range is invalid %x-%x\n",
+ sip, eip);
+ return -1;
+ }
+
+ printf("public_ip_range: %d-%d\n",
+ p->pub_ip_range[public_ip_range_count].
+ start_ip = sip,
+ p->pub_ip_range[public_ip_range_count].
+ end_ip = eip);
+
+ p->pub_ip_range_count = ++public_ip_range_count;
+ continue;
+ }
+
+ if (strcmp(arg_name, "public_ip_port_range") == 0) {
+ public_ip_port_range_present = 1;
+ if (nat_only_config_flag || public_ip_range_present) {
+
+ printf("CG-NAPT parse error:");
+ printf("nat_only_config_flag OR ");
+ printf("public_ip_range_present with "
+ "public_ip_port_range_present\n");
+ return -1;
+ }
+
+ p->pub_ip_port_set = rte_realloc(
+ p->pub_ip_port_set,
+ sizeof(struct pub_ip_port_set),
+ RTE_CACHE_LINE_SIZE);
+
+ if (!p->pub_ip_port_set) {
+ printf("Memory allocation failed for "
+ "public IP\n");
+ return -1;
+ }
+
+ uint32_t ip = 0;
+ int sp = 0, ep = 0;
+
+ if (sscanf(arg_value, "%x:(%d,%d)",
+ &ip, &sp, &ep) != 3) {
+ printf("Public IP or Port-range is invalid\n");
+ return -1;
+ }
+
+ if (ip <= 0 || sp <= 0 || ep <= 0 || sp > ep) {
+ printf("Public IP or Port-range is invalid "
+ "%x:%d-%d\n", ip, sp, ep);
+ return -1;
+ }
+
+ printf("public_ip: 0x%x Range:%d-%d\n",
+ p->pub_ip_port_set[public_ip_count].ip = ip,
+ p->pub_ip_port_set[public_ip_count].start_port = sp,
+ p->pub_ip_port_set[public_ip_count].end_port = ep);
+
+ napt_port_alloc_elem_count += (ep - sp + 1);
+ printf("parse - napt_port_alloc_elem_count :%d\n",
+ napt_port_alloc_elem_count);
+
+ /* Store all public IPs of all CGNAPT threads
+ * in the global variable
+ */
+ /* to revisit indexing */
+ all_public_ip[rte_jhash(&ip, 4, 0) %
+ CGNAPT_MAX_PUB_IP].ip = ip;
+ p->pub_ip_count = ++public_ip_count;
+ printf("public_ip_count:%d hash:%d\n", public_ip_count,
+ rte_jhash(&ip, 4, 0) % CGNAPT_MAX_PUB_IP);
+ continue;
+ }
+
+ /* hw_checksum_reqd */
+ if (strcmp(arg_name, "hw_checksum_reqd") == 0) {
+ int temp;
+ temp = atoi(arg_value);
+ if ((temp != 0) && (temp != 1)) {
+ printf("hw_checksum_reqd is invalid\n");
+ return -1;
+ }
+ p->hw_checksum_reqd = temp;
+ continue;
+ }
+
+ /* nat_only_config_flag */
+ if (strcmp(arg_name, "nat_only_config_flag") == 0) {
+ nat_only_config_flag = 1;
+ if (public_ip_port_range_present) {
+
+ printf("CG-NAPT parse error:");
+ printf("nat_only_config_flag with "
+ "public_ip_port_range_present\n");
+ return -1;
+ }
+ continue;
+ }
+
+ /* max_port_per_client */
+ if (strcmp(arg_name, "max_port_per_client") == 0) {
+ if (max_port_present) {
+ printf("CG-NAPT Parse Error: "
+ "duplicate max_port_per_client\n");
+ return -1;
+ }
+ max_port_present = 1;
+
+ int max = 0;
+ max = atoi(arg_value);
+ if (max <= 0) {
+ printf("max_port_per_client is invalid !!!\n");
+ return -1;
+ }
+
+ p->max_port_per_client = (uint16_t) max;
+
+ if (p->max_port_per_client <= 0) {
+ printf("max port per client is invalid\n");
+ return -1;
+ }
+
+ printf("max_port_per_client comp: %d\n",
+ p->max_port_per_client);
+ continue;
+ }
+
+ /* max_clients_per_ip */
+ if (strcmp(arg_name, "max_clients_per_ip") == 0) {
+ if (max_client_present) {
+ printf("CG-NAPT parse Error: duplicate "
+ "max_clients_per_ip\n");
+ return -1;
+ }
+ max_client_present = 1;
+
+ if (nat_only_config_flag) {
+ printf("CG-NAPT parse error:");
+ printf("nat_only_config_flag with "
+ "max_clients_per_ip\n");
+ return -1;
+ }
+
+ int max = 0;
+ max = atoi(arg_value);
+ if (max <= 0) {
+ printf("max_clients_per_ip is invalid !!!\n");
+ return -1;
+ }
+
+ p->max_clients_per_ip = (uint16_t) max;
+
+ if (p->max_clients_per_ip <= 0) {
+ printf("max_clients_per_ip is invalid\n");
+ return -1;
+ }
+
+ printf("max_clients_per_ip: %d\n",
+ p->max_clients_per_ip);
+ continue;
+ }
+
+ /* n_entries */
+ if (strcmp(arg_name, "n_entries") == 0) {
+ if (n_entries_present)
+ return -1;
+ n_entries_present = 1;
+
+ p->n_entries = atoi(arg_value);
+ if (p->n_entries == 0)
+ return -1;
+
+ continue;
+ }
+
+ /* n_flows */
+ if (strcmp(arg_name, "n_flows") == 0) {
+ if (n_flows_present)
+ return -1;
+ n_flows_present = 1;
+
+ p->n_flows = atoi(arg_value);
+ if (p->n_flows == 0)
+ return -1;
+
+ napt_common_table_hash_params.entries = p->n_flows;
+ continue;
+ }
+ /* dest_if_offset Multiport Changes */
+ if (strcmp(arg_name, "dest_if_offset") == 0) {
+ if (dest_if_offset_present)
+ return -1;
+ //dest_if_offset_present = 1;
+
+ dest_if_offset = atoi(arg_value);
+
+ continue;
+ }
+
+ /* key_offset */
+ if (strcmp(arg_name, "key_offset") == 0) {
+ if (key_offset_present)
+ return -1;
+ key_offset_present = 1;
+
+ p->key_offset = atoi(arg_value);
+
+ continue;
+ }
+
+ /* key_size */
+ if (strcmp(arg_name, "key_size") == 0) {
+ if (key_size_present)
+ return -1;
+ key_size_present = 1;
+
+ p->key_size = atoi(arg_value);
+ if ((p->key_size == 0) ||
+ (p->key_size > PIPELINE_CGNAPT_KEY_MAX_SIZE) ||
+ (p->key_size % 8))
+ return -1;
+
+ continue;
+ }
+
+ /* hash_offset */
+ if (strcmp(arg_name, "hash_offset") == 0) {
+ if (hash_offset_present)
+ return -1;
+ hash_offset_present = 1;
+
+ p->hash_offset = atoi(arg_value);
+
+ continue;
+ }
+
+ /* traffic_type */
+ if (strcmp(arg_name, "pkt_type") == 0) {
+ if (strcmp(arg_value, "ipv4") == 0) {
+ p->traffic_type = TRAFFIC_TYPE_IPV4;
+ printf("Traffic is set to IPv4\n");
+ } else if (strcmp(arg_value, "ipv6") == 0) {
+ p->traffic_type = TRAFFIC_TYPE_IPV6;
+ printf("Traffic is set to IPv6\n");
+ }
+ continue;
+ }
+
+ /* cgnapt_debug */
+ if (strcmp(arg_name, "cgnapt_debug") == 0) {
+ CGNAPT_DEBUG = atoi(arg_value);
+
+ continue;
+ }
+
+ /* any other Unknown argument return -1 */
+ }
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag) {
+ if (!public_ip_range_count) {
+ printf("No public_ip_range %d for NAT only config.\n",
+ public_ip_range_count);
+ printf("Running static NAT only configuration\n");
+ p->is_static_cgnapt = 1;
+ }
+ }
+ #else
+
+ if (!p->max_port_per_client)
+ p->is_static_cgnapt = 1;
+ #endif
+
+ /* Check that mandatory arguments are present */
+ if ((n_flows_present == 0) ||
+ (cgnapt_meta_offset_present == 0))
+ return -1;
+
+ return 0;
+
+}
+
+/**
+ * Function to initialize the pipeline
+ *
+ * @param params
+ * A pointer to struct pipeline_params
+ * @param arg
+ * Void pointer - points to app params
+ *
+ * @return
+ * void pointer to the pipeline, NULL 0 if failure
+ */
+static void *pipeline_cgnapt_init(struct pipeline_params *params, void *arg)
+ /* (struct app_params *app) save it for use in port in handler */
+{
+ struct pipeline *p;
+ struct pipeline_cgnapt *p_nat;
+ uint32_t size, i, in_ports_arg_size;
+
+ /* Check input arguments */
+ if ((params == NULL) ||
+ (params->n_ports_in == 0) || (params->n_ports_out == 0))
+ return NULL;
+
+ /* Memory allocation */
+ size = RTE_CACHE_LINE_ROUNDUP(sizeof(struct pipeline_cgnapt));
+ p = rte_zmalloc(NULL, size, RTE_CACHE_LINE_SIZE);
+ p_nat = (struct pipeline_cgnapt *)p;
+ if (p == NULL)
+ return NULL;
+
+ all_pipeline_cgnapt[n_cgnapt_pipeline++] = p_nat;
+
+ strcpy(p->name, params->name);
+ p->log_level = params->log_level;
+
+ PLOG(p, HIGH, "CG-NAPT");
+ /* Initialize all counters and arrays */
+
+ p_nat->n_cgnapt_entry_deleted = 0;
+ p_nat->n_cgnapt_entry_added = 0;
+ p_nat->naptedPktCount = 0;
+ p_nat->naptDroppedPktCount = 0;
+ p_nat->inaptedPktCount = 0;
+ p_nat->enaptedPktCount = 0;
+ p_nat->receivedPktCount = 0;
+ p_nat->missedPktCount = 0;
+ p_nat->dynCgnaptCount = 0;
+ p_nat->arpicmpPktCount = 0;
+
+ p_nat->app_params_addr = (uint64_t) arg;
+ for (i = 0; i < PIPELINE_MAX_PORT_IN; i++) {
+ p_nat->links_map[i] = 0xff;
+ p_nat->outport_id[i] = 0xff;
+ cgnapt_in_port_egress_prv[i] = 0;
+ cgnapt_prv_que_port_index[i] = 0;
+ }
+ p_nat->pipeline_num = 0xff;
+ p_nat->hw_checksum_reqd = 0;
+ p_nat->pub_ip_port_set = NULL;
+ p_nat->pub_ip_count = 0;
+ p_nat->traffic_type = TRAFFIC_TYPE_MIX;
+ p_nat->vnf_set = 0xff;
+
+ /* For every init it should be reset */
+ napt_port_alloc_elem_count = 0;
+
+ #ifdef CGNAPT_TIMING_INST
+ p_nat->in_port_exit_timestamp = 0;
+ p_nat->external_time_sum = 0;
+ p_nat->internal_time_sum = 0;
+ p_nat->time_measurements = 0;
+ p_nat->max_time_mesurements = 10000;
+ p_nat->time_measurements_on = 0;
+ #endif
+
+ #ifdef CGNAPT_DEBUGGING
+
+ p_nat->naptDebugCount = 0;
+
+ p_nat->naptDroppedPktCount1 = 0;
+ p_nat->naptDroppedPktCount2 = 0;
+ p_nat->naptDroppedPktCount3 = 0;
+ p_nat->naptDroppedPktCount4 = 0;
+ p_nat->naptDroppedPktCount5 = 0;
+ p_nat->naptDroppedPktCount6 = 0;
+
+ p_nat->missedpktcount1 = 0;
+ p_nat->missedpktcount2 = 0;
+ p_nat->missedpktcount3 = 0;
+ p_nat->missedpktcount4 = 0;
+ p_nat->missedpktcount5 = 0;
+ p_nat->missedpktcount6 = 0;
+ p_nat->missedpktcount7 = 0;
+ p_nat->missedpktcount8 = 0;
+ p_nat->missedpktcount9 = 0;
+ p_nat->missedpktcount10 = 0;
+ p_nat->missedpktcount11 = 0;
+ p_nat->missedpktcount12 = 0;
+
+ p_nat->max_port_dec_err1 = 0;
+ p_nat->max_port_dec_err2 = 0;
+ p_nat->max_port_dec_err3 = 0;
+ p_nat->max_port_dec_success = 0;
+
+ p_nat->pfb_err = 0;
+ p_nat->pfb_ret = 0;
+ p_nat->pfb_get = 0;
+ p_nat->pfb_suc = 0;
+ p_nat->gfp_suc = 0;
+ p_nat->gfp_get = 0;
+ p_nat->gfp_ret = 0;
+ p_nat->gfp_err = 0;
+
+ p_nat->kpc2 = 0;
+ p_nat->kpc1 = 0;
+ #endif
+
+ #ifdef SIP_ALG
+ static int sip_enabled;
+ if (!sip_enabled)
+ lib_sip_alg_init();
+ sip_enabled = 1;
+ #endif /* SIP_ALG */
+
+ /*struct rte_pipeline_table_entry *entries[RTE_HASH_LOOKUP_BULK_MAX];*/
+ /* bitmap of valid packets */
+ p_nat->valid_packets = 0;
+ /* bitmap of invalid packets to be dropped */
+ p_nat->invalid_packets = 0;
+
+ for (i = 0; i < RTE_HASH_LOOKUP_BULK_MAX; i++)
+ p_nat->key_ptrs[i] = &(p_nat->keys[i]);
+
+ p_nat->port_alloc_ring = NULL;
+
+ /* Parse arguments */
+ if (pipeline_cgnapt_parse_args(p_nat, params))
+ return NULL;
+
+ p_nat->vnf_set = vnf_set_count;
+
+ /* Pipeline */
+ {
+ struct rte_pipeline_params pipeline_params = {
+ .name = params->name,
+ .socket_id = params->socket_id,
+ .offset_port_id = cgnapt_meta_offset,
+ };
+
+ p->p = rte_pipeline_create(&pipeline_params);
+ if (p->p == NULL) {
+ rte_free(p);
+ return NULL;
+ }
+ myP = p->p;
+ }
+
+ #ifdef PIPELINE_CGNAPT_INSTRUMENTATION
+
+ uint32_t instr_size =
+ RTE_CACHE_LINE_ROUNDUP((sizeof(uint64_t)) *
+ (INST_ARRAY_SIZE));
+ inst_start_time =
+ (uint64_t *) rte_zmalloc(NULL, instr_size,
+ RTE_CACHE_LINE_SIZE);
+ inst_end_time =
+ (uint64_t *) rte_zmalloc(NULL, instr_size,
+ RTE_CACHE_LINE_SIZE);
+ inst_diff_time =
+ (uint32_t *) rte_zmalloc(NULL, instr_size / 2,
+ RTE_CACHE_LINE_SIZE);
+ if ((inst_start_time == NULL) || (inst_end_time == NULL)
+ || (inst_diff_time == NULL)) {
+ printf("Inst array alloc failed .... ");
+ return NULL;
+ }
+ #endif
+
+ /* Memory allocation for in_port_h_arg */
+ in_ports_arg_size = RTE_CACHE_LINE_ROUNDUP(
+ (sizeof(struct pipeline_cgnapt_in_port_h_arg)) *
+ (params->n_ports_in));
+ struct pipeline_cgnapt_in_port_h_arg *ap =
+ (struct pipeline_cgnapt_in_port_h_arg *)
+ rte_zmalloc(NULL,
+ in_ports_arg_size,
+ RTE_CACHE_LINE_SIZE);
+ if (ap == NULL)
+ return NULL;
+
+ myApp = (struct app_params *) arg;
+
+ /* Input ports */
+ p->n_ports_in = params->n_ports_in;
+ for (i = 0; i < p->n_ports_in; i++) {
+ /* passing our cgnapt pipeline in call back arg */
+ (ap[i]).p = p_nat;
+ (ap[i]).in_port_id = i;
+
+ struct rte_pipeline_port_in_params port_params = {
+ .ops =
+ pipeline_port_in_params_get_ops(¶ms->port_in
+ [i]),
+ .arg_create =
+ pipeline_port_in_params_convert(¶ms->port_in
+ [i]),
+ .f_action = cgnapt_in_port_ah_mix,
+ .arg_ah = &(ap[i]),
+ .burst_size = params->port_in[i].burst_size,
+ };
+
+ #ifdef PIPELINE_CGNAPT_INSTRUMENTATION
+ if (i == 0)
+ instrumentation_port_in_arg = &(ap[i]);
+ #endif
+
+ if (p_nat->traffic_type == TRAFFIC_TYPE_IPV4) {
+ /* Private in-port handler */
+ /* Multiport changes */
+ if (cgnapt_in_port_egress_prv[i]) {
+ port_params.f_action =
+ cgnapt_in_port_ah_ipv4_prv;
+ printf("CGNAPT port %d is IPv4 Prv\n", i);
+ } else{
+ port_params.f_action =
+ cgnapt_in_port_ah_ipv4_pub;
+ printf("CGNAPT port %d is IPv4 Pub\n", i);
+ }
+ }
+
+ if (p_nat->traffic_type == TRAFFIC_TYPE_IPV6) {
+ if (cgnapt_in_port_egress_prv[i]) {
+ port_params.f_action =
+ cgnapt_in_port_ah_ipv6_prv;
+ printf("CGNAPT port %d is IPv6 Prv\n", i);
+ } else{
+ port_params.f_action =
+ cgnapt_in_port_ah_ipv6_pub;
+ printf("CGNAPT port %d is IPv6 Pub\n", i);
+ }
+ }
+
+ int status = rte_pipeline_port_in_create(p->p,
+ &port_params,
+ &p->port_in_id[i]);
+
+ if (status) {
+ rte_pipeline_free(p->p);
+ rte_free(p);
+ return NULL;
+ }
+
+ }
+
+ /* Output ports */
+ p->n_ports_out = params->n_ports_out;
+ for (i = 0; i < p->n_ports_out; i++) {
+ struct rte_pipeline_port_out_params port_params = {
+ .ops = pipeline_port_out_params_get_ops(
+ ¶ms->port_out[i]),
+ .arg_create = pipeline_port_out_params_convert(
+ ¶ms->port_out[i]),
+ #ifdef PIPELINE_CGNAPT_INSTRUMENTATION
+ .f_action = port_out_ah_cgnapt,
+ #else
+ .f_action = NULL,
+ #endif
+ .arg_ah = NULL,
+ };
+
+ int status = rte_pipeline_port_out_create(p->p,
+ &port_params,
+ &p->port_out_id[i]);
+
+ if (status) {
+ rte_pipeline_free(p->p);
+ rte_free(p);
+ return NULL;
+ }
+ }
+
+ int pipeline_num = 0;
+ int ignore;
+ ignore = sscanf(params->name, "PIPELINE%d", &pipeline_num);
+ if (ignore != 1) {
+ printf("Not able to read pipeline number\n");
+ return NULL;
+ }
+ p_nat->pipeline_num = (uint8_t) pipeline_num;
+ register_pipeline_Qs(p_nat->pipeline_num, p);
+ set_link_map(p_nat->pipeline_num, p, p_nat->links_map);
+ set_outport_id(p_nat->pipeline_num, p, p_nat->outport_id);
+
+ /* Tables */
+ p->n_tables = 1;
+ {
+
+ if (napt_common_table == NULL) {
+ if (create_napt_common_table(p_nat->n_flows)) {
+ PLOG(p, HIGH,
+ "CG-NAPT create_napt_common_table failed.");
+ return NULL;
+ }
+ }
+
+ struct rte_pipeline_table_params table_params = {
+ .ops = &rte_table_stub_ops,
+ .arg_create = NULL,
+ .f_action_hit = NULL,
+ .f_action_miss = NULL,
+ .arg_ah = NULL,
+ .action_data_size = 0,
+ };
+
+ int status = rte_pipeline_table_create(p->p,
+ &table_params,
+ &p->table_id[0]);
+
+ if (status) {
+ rte_pipeline_free(p->p);
+ rte_free(p);
+ return NULL;
+ }
+ struct rte_pipeline_table_entry default_entry = {
+ .action = RTE_PIPELINE_ACTION_PORT_META
+ };
+ struct rte_pipeline_table_entry *default_entry_ptr;
+ status = rte_pipeline_table_default_entry_add(
+ p->p,
+ p->table_id[0],
+ &default_entry,
+ &default_entry_ptr);
+ if (status) {
+ rte_pipeline_free(p->p);
+ rte_free(p);
+ return NULL;
+ }
+ }
+
+ /* Connecting input ports to tables */
+ for (i = 0; i < p->n_ports_in; i++) {
+ int status = rte_pipeline_port_in_connect_to_table(p->p,
+ p->port_in_id
+ [i],
+ p->table_id
+ [0]);
+
+ if (status) {
+ rte_pipeline_free(p->p);
+ rte_free(p);
+ return NULL;
+ }
+ }
+
+ /* Enable input ports */
+ for (i = 0; i < p->n_ports_in; i++) {
+ int status = rte_pipeline_port_in_enable(p->p,
+ p->port_in_id[i]);
+
+ if (status) {
+ rte_pipeline_free(p->p);
+ rte_free(p);
+ return NULL;
+ }
+ }
+
+ /* Check pipeline consistency */
+ if (rte_pipeline_check(p->p) < 0) {
+ rte_pipeline_free(p->p);
+ rte_free(p);
+ return NULL;
+ }
+
+ /* Message queues */
+ p->n_msgq = params->n_msgq;
+ for (i = 0; i < p->n_msgq; i++)
+ p->msgq_in[i] = params->msgq_in[i];
+ for (i = 0; i < p->n_msgq; i++)
+ p->msgq_out[i] = params->msgq_out[i];
+
+ /* Message handlers */
+ memcpy(p->handlers, handlers, sizeof(p->handlers));
+ memcpy(p_nat->custom_handlers,
+ custom_handlers, sizeof(p_nat->custom_handlers));
+
+ if (!p_nat->is_static_cgnapt) {
+ printf("Initializing dyn napt components ... %d\n",
+ p_nat->pipeline_num);
+ if (napt_port_alloc_init(p_nat) == -1) {
+ printf("Error - napt_port_alloc_init failed - %d\n",
+ p_nat->pipeline_num);
+ return NULL;
+ }
+ int rc = 0;
+
+ if (max_port_per_client_hash == NULL) {
+ rc = init_max_port_per_client(p_nat);
+ if (rc < 0) {
+ printf("CGNAPT Error - "
+ "init_max_port_per_client failed %d", rc);
+ return NULL;
+ }
+ }
+
+ }
+
+ if (!icmp_pool_init) {
+ icmp_pool_init = 1;
+ /* create the arp_icmp mbuf rx pool */
+ cgnapt_icmp_pktmbuf_tx_pool =
+ rte_pktmbuf_pool_create("icmp_mbuf_tx_pool", 63, 32, 0,
+ RTE_MBUF_DEFAULT_BUF_SIZE,
+ rte_socket_id());
+ if (cgnapt_icmp_pktmbuf_tx_pool == NULL) {
+ PLOG(p, HIGH, "ICMP mbuf pool create failed.");
+ return NULL;
+ }
+
+ cgnapt_icmp_pkt =
+ rte_pktmbuf_alloc(cgnapt_icmp_pktmbuf_tx_pool);
+
+ if (cgnapt_icmp_pkt == NULL) {
+ printf("Failed to allocate cgnapt_icmp_pkt\n");
+ return NULL;
+ }
+ }
+
+ #ifdef CT_CGNAT
+
+ cgnat_cnxn_tracker = rte_zmalloc(NULL, rte_ct_get_cnxn_tracker_size(),
+ RTE_CACHE_LINE_SIZE);
+
+ if (cgnat_cnxn_tracker == NULL) {
+ printf("CGNAPT CT memory not allocated\n");
+ return NULL;
+ }
+ rte_ct_initialize_default_timeouts(cgnat_cnxn_tracker);
+
+ printf("CGNAPT CT Flows %d\n", p_nat->n_flows);
+ int ret;
+ ret = rte_ct_initialize_cnxn_tracker(cgnat_cnxn_tracker,
+ p_nat->n_flows,
+ "CGNAT_CT_COMMON_TABLE");
+ if (ret == -1)
+ return NULL;
+ #endif
+
+ #ifdef FTP_ALG
+ lib_ftp_alg_init();
+ #endif
+
+ #ifdef PCP_ENABLE
+ if (pcp_init() == PCP_INIT_SUCCESS)
+ printf("PCP contents are initialized successfully\n");
+ else
+ printf("Error in initializing PCP contents\n");
+ #endif
+
+ return p;
+}
+
+/**
+ * Function for pipeline cleanup
+ *
+ * @param pipeline
+ * A void pointer to pipeline
+ *
+ * @return
+ * 0
+ */
+static int pipeline_cgnapt_free(void *pipeline)
+{
+ struct pipeline *p = (struct pipeline *)pipeline;
+
+ /* Check input arguments */
+ if (p == NULL)
+ return -1;
+
+ /* Free resources */
+ rte_pipeline_free(p->p);
+ rte_free(p);
+ return 0;
+}
+
+static int
+pipeline_cgnapt_track(void *pipeline, __rte_unused uint32_t port_in,
+ uint32_t *port_out)
+{
+ struct pipeline *p = (struct pipeline *)pipeline;
+
+ /* Check input arguments */
+ if ((p == NULL) || (port_in >= p->n_ports_in) || (port_out == NULL))
+ return -1;
+
+ if (p->n_ports_in == 1) {
+ *port_out = 0;
+ return 0;
+ }
+
+ return -1;
+}
+
+/**
+ * Function for pipeline timers
+ *
+ * @param pipeline
+ * A void pointer to pipeline
+ *
+ * @return
+ * 0
+ */
+static int pipeline_cgnapt_timer(void *pipeline)
+{
+ struct pipeline_cgnapt *p_nat = (struct pipeline_cgnapt *)pipeline;
+
+ pipeline_msg_req_handle(&p_nat->p);
+
+ rte_pipeline_flush(((struct pipeline *)p_nat)->p);
+
+ return 0;
+}
+
+/**
+ * Function for pipeline custom handlers
+ *
+ * @param pipeline
+ * A void pointer to pipeline
+ * @param msg
+ * void pointer for incoming data
+ *
+ * @return
+ * void pointer of response
+ */
+void *pipeline_cgnapt_msg_req_custom_handler(struct pipeline *p, void *msg)
+{
+ struct pipeline_cgnapt *p_nat = (struct pipeline_cgnapt *)p;
+ struct pipeline_custom_msg_req *req = msg;
+ pipeline_msg_req_handler f_handle;
+
+ f_handle = (req->subtype < PIPELINE_CGNAPT_MSG_REQS) ?
+ p_nat->custom_handlers[req->subtype] :
+ pipeline_msg_req_invalid_handler;
+
+ if (f_handle == NULL)
+ f_handle = pipeline_msg_req_invalid_handler;
+
+ return f_handle(p, req);
+}
+
+/**
+ * Function for adding NSP data
+ *
+ * @param pipeline
+ * A void pointer to pipeline
+ * @param msg
+ * void pointer for incoming data
+ *
+ * @return
+ * void pointer of response
+ */
+void *pipeline_cgnapt_msg_req_nsp_add_handler(
+ __rte_unused struct pipeline *p,
+ void *msg)
+{
+ struct pipeline_cgnapt_nsp_add_msg_req *req = msg;
+ struct pipeline_cgnapt_nsp_add_msg_rsp *rsp = msg;
+ int size = 0;
+ struct cgnapt_nsp_node *node = NULL, *ll = nsp_ll;
+
+ if (!
+ (req->nsp.depth == 32 || req->nsp.depth == 40
+ || req->nsp.depth == 48 || req->nsp.depth == 56
+ || req->nsp.depth == 64 || req->nsp.depth == 96)) {
+ rsp->status = 0xE;
+ rsp->key_found = 0;
+ return rsp;
+ }
+
+ printf("be initial cond\n");
+ if (nsp_ll == NULL) {
+ size = RTE_CACHE_LINE_ROUNDUP(sizeof(struct cgnapt_nsp_node));
+ node = rte_zmalloc(NULL, size, RTE_CACHE_LINE_SIZE);
+ if (node == NULL) {
+ printf("be 1st cond\n");
+ rsp->status = 0xE;
+ rsp->key_found = 0;
+ return rsp;
+ }
+
+ memcpy(&node->nsp, &req->nsp,
+ sizeof(struct pipeline_cgnapt_nsp_t));
+ node->next = NULL;
+ nsp_ll = node;
+ } else {
+ while (ll != NULL) {
+ if (!memcmp(ll->nsp.prefix, req->nsp.prefix, 16)
+ && ll->nsp.depth == req->nsp.depth) {
+ printf("be 2st cond\n");
+ rsp->status = 0xE;
+ rsp->key_found = 1;
+ return rsp;
+ }
+ ll = ll->next;
+ }
+
+ size = RTE_CACHE_LINE_ROUNDUP(sizeof(struct cgnapt_nsp_node));
+ node = rte_zmalloc(NULL, size, RTE_CACHE_LINE_SIZE);
+ if (node == NULL) {
+ printf("be 3st cond\n");
+ rsp->status = 0xE;
+ rsp->key_found = 0;
+ return rsp;
+ }
+
+ memcpy(&node->nsp, &req->nsp,
+ sizeof(struct pipeline_cgnapt_nsp_t));
+ node->next = nsp_ll;
+ nsp_ll = node;
+ }
+
+ rsp->status = 0;
+ rsp->key_found = 0;
+
+ printf("be 4st cond\n");
+ return rsp;
+}
+
+/**
+ * Function for deleting NSP data
+ *
+ * @param pipeline
+ * A void pointer to pipeline
+ * @param msg
+ * void pointer for incoming data
+ *
+ * @return
+ * void pointer of response
+ */
+void *pipeline_cgnapt_msg_req_nsp_del_handler(
+ __rte_unused struct pipeline *p,
+ void *msg)
+{
+ struct pipeline_cgnapt_nsp_del_msg_req *req = msg;
+ struct pipeline_cgnapt_nsp_del_msg_rsp *rsp = msg;
+ struct cgnapt_nsp_node *prev = NULL, *ll = nsp_ll;
+
+ while (ll != NULL) {
+ if (!memcmp(ll->nsp.prefix, req->nsp.prefix, 16)
+ && ll->nsp.depth == req->nsp.depth) {
+ if (prev != NULL)
+ prev->next = ll->next;
+ else
+ nsp_ll = NULL;
+
+ rte_free(ll);
+
+ rsp->status = 0;
+ rsp->key_found = 1;
+
+ return rsp;
+ }
+
+ prev = ll;
+ ll = ll->next;
+ }
+
+ rsp->status = 0xE;
+ rsp->key_found = 0;
+
+ return rsp;
+}
+
+/**
+ * Function for adding NAPT entry
+ *
+ * @param pipeline
+ * A void pointer to pipeline
+ * @param msg
+ * void pointer for incoming data
+ *
+ * @return
+ * void pointer of response
+ */
+void *pipeline_cgnapt_msg_req_entry_add_handler(struct pipeline *p, void *msg)
+{
+ struct pipeline_cgnapt_entry_add_msg_req *req = msg;
+ struct pipeline_cgnapt *p_nat = (struct pipeline_cgnapt *)p;
+ uint8_t type = req->data.type;
+ uint32_t src_ip = (type == CGNAPT_ENTRY_IPV4) ?
+ req->data.u.prv_ip :
+ rte_bswap32(req->data.u.u32_prv_ipv6[3]);
+
+ uint8_t src_ipv6[16];
+
+ uint32_t dest_ip = req->data.pub_ip;
+ uint16_t src_port = req->data.prv_port;
+ uint16_t dest_port = req->data.pub_port;
+ uint16_t rx_port = req->data.prv_phy_port;
+ uint32_t ttl = req->data.ttl;
+
+ if (type == CGNAPT_ENTRY_IPV6)
+ memcpy(src_ipv6, req->data.u.prv_ipv6, 16);
+
+ printf("CG-NAPT addm - PrvIP %x, PrvPort %d,", src_ip, src_port);
+ printf("PubIP %x, PubPort %d,", dest_ip, dest_port);
+
+ printf("PhyPort %d, ttl %u,", rx_port, ttl);
+ printf("entry_type %d\n", type);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag) {
+ if (!p_nat->is_static_cgnapt) {
+ int i;
+
+ for (i = 0; i < p_nat->pub_ip_range_count; i++) {
+ if (((dest_ip >= p_nat->pub_ip_range[i].start_ip)
+ && (dest_ip <= p_nat->pub_ip_range[i].end_ip))) {
+ printf("Error - static port cannot be in Dynamic "
+ "port range");
+ printf("%x-%x\n", p_nat->pub_ip_range[i].start_ip,
+ p_nat->pub_ip_range[i].end_ip);
+ return msg;
+ }
+ }
+ }
+
+ if (pipeline_cgnapt_msg_req_entry_addm_pair(p, msg,
+ src_ip, src_port,
+ dest_ip, dest_port,
+ rx_port, ttl,
+ type, src_ipv6)) {
+ printf("Error - ");
+ printf("pipeline_cgnapt_msg_req_entry_addm_handler\n");
+ return msg;
+ }
+
+ printf("Success - pipeline_cgnapt_msg_req_entry_addm_handler");
+ printf("added %d rule pairs.\n", count);
+
+ return msg;
+ }
+ #endif
+
+ if (!p_nat->is_static_cgnapt) {
+ int i;
+
+ for (i = 0; i < p_nat->pub_ip_count; i++) {
+ /* Check port range if same Public-IP */
+ if (dest_ip != p_nat->pub_ip_port_set[i].ip)
+ continue;
+ if (((dest_port >= p_nat->pub_ip_port_set[i].start_port) &&
+ (dest_port <= p_nat->pub_ip_port_set[i].end_port))) {
+ printf("Error - port cannot be in Dynamic "
+ "port range %d-%d\n",
+ p_nat->pub_ip_port_set[i].start_port,
+ p_nat->pub_ip_port_set[i].end_port);
+ return msg;
+ }
+ }
+ }
+
+ if (pipeline_cgnapt_msg_req_entry_addm_pair
+ (p, msg, src_ip, src_port, dest_ip, dest_port, rx_port,
+ ttl, type, src_ipv6)) {
+ printf("Error - pipeline_cgnapt_msg_req_entry_add_handler\n");
+ return msg;
+ }
+
+
+ printf("\nSuccess - pipeline_cgnapt_msg_req_entry_add_handler "
+ "added\n");
+
+ return msg;
+}
+
+/**
+ * Function for adding a NAPT entry pair
+ *
+ * @param pipeline
+ * A void pointer to pipeline
+ * @param msg
+ * void pointer for incoming data
+ * @param src_ip
+ * source ip address
+ * @param src_port
+ * source port
+ * @param dest_ip
+ * destination ip address
+ * @param dest_port
+ * destination port
+ * @param rx_port
+ * Physical receive port
+ * @param ttl
+ * time to live value
+ * @param type
+ * type of entry IPv4 vs IPv6
+ * @param src_ipv6[]
+ * uint8_t array of IPv6 address
+ *
+ * @return
+ * 0 if success, negative if fails
+ */
+int
+pipeline_cgnapt_msg_req_entry_addm_pair(
+ struct pipeline *p, __rte_unused void *msg,
+ uint32_t src_ip, uint16_t src_port,
+ uint32_t dest_ip, uint16_t dest_port,
+ uint16_t rx_port, uint32_t ttl,
+ uint8_t type, uint8_t src_ipv6[16])
+{
+
+ struct pipeline_cgnapt_entry_key key;
+ struct pipeline_cgnapt *p_nat = (struct pipeline_cgnapt *)p;
+
+ key.ip = src_ip;
+ key.port = src_port;
+ key.pid = rx_port;
+
+ struct cgnapt_table_entry entry = {
+ .head = {
+ .action = RTE_PIPELINE_ACTION_PORT,
+ .port_id = CGNAPT_PUB_PORT_ID,
+ },
+
+ .data = {
+ /*.prv_ip = src_ip, */
+ .prv_port = src_port,
+ .pub_ip = dest_ip,
+ .pub_port = dest_port,
+ .prv_phy_port = rx_port,
+ .pub_phy_port = get_prv_to_pub_port(&dest_ip,
+ IP_VERSION_4),
+ .ttl = ttl,
+ .timeout = STATIC_CGNAPT_TIMEOUT,
+ #ifdef PCP_ENABLE
+ .timer = NULL,
+ #endif
+ }
+ };
+
+ if (type == CGNAPT_ENTRY_IPV4) {
+ entry.data.type = CGNAPT_ENTRY_IPV4;
+ entry.data.u.prv_ip = src_ip;
+ } else {
+ entry.data.type = CGNAPT_ENTRY_IPV6;
+ memcpy(entry.data.u.prv_ipv6, src_ipv6, 16);
+ }
+
+ /* Also need to add a paired entry on our own */
+ /*
+ * Need to change key
+ * Need to change entry header
+ * Will keep the same entry and take care
+ * of translation in table hit handler
+ */
+ struct pipeline_cgnapt_entry_key second_key;
+
+ /* Need to add a second ingress entry */
+ second_key.ip = dest_ip;
+ second_key.port = dest_port;
+ second_key.pid = 0xffff;
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag) {
+ key.port = 0xffff;
+ entry.data.pub_port = 0xffff;
+ second_key.port = 0xffff;
+ }
+ #endif
+
+ if (CGNAPT_DEBUG > 2)
+ printf("key.ip %x, key.port %d", key.ip, key.port);
+ printf("key.pid %d, in_type %d,", key.pid, type);
+ printf("entry_type %d\n", entry.data.type);
+
+ int32_t position = rte_hash_add_key(napt_common_table, &key);
+
+ if (position < 0) {
+ printf("CG-NAPT entry bulk add failed");
+ printf(" ... returning without adding ...\n");
+ return -1;
+ }
+
+ memcpy(&napt_hash_tbl_entries[position], &entry,
+ sizeof(struct cgnapt_table_entry));
+
+ #ifdef CGNAPT_DEBUGGING
+ if (p_nat->kpc1++ < 5)
+ print_key(&key);
+ #endif
+
+ p_nat->n_cgnapt_entry_added++;
+
+ /* Now modify the forward port for reverse entry */
+ entry.head.port_id = CGNAPT_PRV_PORT_ID;
+
+ position = rte_hash_add_key(napt_common_table, &second_key);
+
+ if (position < 0) {
+ printf("CG-NAPT entry reverse bulk add failed");
+ printf(" ... returning with fwd add ...%d\n", position);
+ return 2;
+ }
+
+ memcpy(&napt_hash_tbl_entries[position], &entry,
+ sizeof(struct cgnapt_table_entry));
+
+ #ifdef CGNAPT_DEBUGGING
+ if (p_nat->kpc1 < 5)
+ print_key(&second_key);
+ #endif
+
+ p_nat->n_cgnapt_entry_added++;
+ return 0;
+}
+
+/**
+ * Function for adding multiple NAPT entries
+ *
+ * @param pipeline
+ * A void pointer to pipeline
+ * @param msg
+ * void pointer for incoming data
+ *
+ * @return
+ * void pointer of response
+ */
+void *pipeline_cgnapt_msg_req_entry_addm_handler(struct pipeline *p, void *msg)
+{
+ struct pipeline_cgnapt_entry_addm_msg_req *req = msg;
+ struct pipeline_cgnapt *p_nat = (struct pipeline_cgnapt *)p;
+ uint32_t uenum = 0;
+ uint32_t max_ue = req->data.num_ue;
+ uint8_t type = req->data.type;
+ uint32_t src_ip = (type == CGNAPT_ENTRY_IPV4) ?
+ req->data.u.prv_ip :
+ rte_bswap32(req->data.u.u32_prv_ipv6[3]);
+
+ uint8_t src_ipv6[16];
+
+ uint32_t dest_ip = req->data.pub_ip;
+ uint16_t src_port = req->data.prv_port;
+ uint16_t dest_port = req->data.pub_port;
+ uint16_t rx_port = req->data.prv_phy_port;
+ uint32_t ttl = req->data.ttl;
+ uint16_t max_src_port = req->data.prv_port_max;
+ uint16_t max_dest_port = req->data.pub_port_max;
+ uint32_t count = 0;
+ uint16_t src_port_start = src_port;
+ uint16_t dest_port_start = dest_port;
+ uint32_t src_ip_temp;
+
+ if (type == CGNAPT_ENTRY_IPV6)
+ memcpy(src_ipv6, req->data.u.prv_ipv6, 16);
+
+ printf("CG-NAPT addm - PrvIP %x, PrvPort %d,", src_ip, src_port);
+ printf("PubIP %x, PubPort %d,", dest_ip, dest_port);
+ printf("PhyPort %d, ttl %u, NumUe %d,", rx_port, ttl, max_ue);
+ printf("mPrvPort %d, mPubPort %d,", max_src_port, max_dest_port);
+ printf("entry_type %d\n", type);
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag) {
+ if (!p_nat->is_static_cgnapt) {
+ int i;
+
+ for (i = 0; i < p_nat->pub_ip_range_count; i++) {
+ if (((dest_ip >= p_nat->pub_ip_range[i].start_ip)
+ && (dest_ip <= p_nat->pub_ip_range[i].end_ip)) ||
+ (((dest_ip + max_ue) >=
+ p_nat->pub_ip_range[i].start_ip) &&
+ ((dest_ip + max_ue) <=
+ p_nat->pub_ip_range[i].end_ip))) {
+ printf("Error - static port cannot be in Dynamic "
+ "port range");
+ printf("%x-%x\n", p_nat->pub_ip_range[i].start_ip,
+ p_nat->pub_ip_range[i].end_ip);
+
+ return msg;
+ }
+ }
+ }
+
+ for (uenum = 0; uenum < max_ue; uenum++) {
+
+ if (pipeline_cgnapt_msg_req_entry_addm_pair(p, msg,
+ src_ip, src_port,
+ dest_ip, dest_port,
+ rx_port, ttl,
+ type, src_ipv6)) {
+ printf("Error - ");
+ printf("pipeline_cgnapt_msg_req_entry_addm_handler\n");
+ return msg;
+ }
+
+ count++;
+
+ src_ip++;
+ dest_ip++;
+ }
+
+ printf("Success - pipeline_cgnapt_msg_req_entry_addm_handler");
+ printf("added %d rule pairs.\n", count);
+
+ return msg;
+ }
+ #endif
+
+ if (!p_nat->is_static_cgnapt) {
+ int i;
+
+ for (i = 0; i < p_nat->pub_ip_count; i++) {
+ /* Check port range if same Public-IP */
+ if (dest_ip != p_nat->pub_ip_port_set[i].ip)
+ continue;
+ if (((dest_port >= p_nat->pub_ip_port_set[i].start_port) &&
+ (dest_port <= p_nat->pub_ip_port_set[i].end_port)) ||
+ ((max_dest_port >= p_nat->pub_ip_port_set[i].start_port)
+ && max_dest_port <= p_nat->pub_ip_port_set[i].end_port)) {
+ printf("Error - port cannot be in Dynamic port range %d-%d\n",
+ p_nat->pub_ip_port_set[i].start_port,
+ p_nat->pub_ip_port_set[i].end_port);
+ return msg;
+ }
+ }
+ }
+
+ for (uenum = 0; uenum < max_ue; uenum++) {
+ if (pipeline_cgnapt_msg_req_entry_addm_pair
+ (p, msg, src_ip, src_port, dest_ip, dest_port, rx_port,
+ ttl, type, src_ipv6)) {
+ printf("Error - pipeline_cgnapt_msg_req_entry_addm_handler\n");
+ return msg;
+ }
+
+ count++;
+
+ src_port++;
+ if (src_port > max_src_port) {
+ src_port = src_port_start;
+ src_ip++;
+ if (req->data.type == CGNAPT_ENTRY_IPV6) {
+ src_ip_temp = rte_bswap32(src_ip);
+ memcpy(&src_ipv6[12], &src_ip_temp, 4);
+ }
+ }
+ dest_port++;
+ if (dest_port > max_dest_port) {
+ dest_port = dest_port_start;
+ dest_ip++;
+ }
+ }
+
+ printf("\nSuccess - pipeline_cgnapt_msg_req_entry_addm_handler added");
+ printf("%d rule pairs.\n", count);
+
+ return msg;
+}
+
+/**
+ * Function for deleting NAPT entry
+ *
+ * @param pipeline
+ * A void pointer to pipeline
+ * @param msg
+ * void pointer for incoming data
+ *
+ * @return
+ * void pointer of response
+ */
+void *pipeline_cgnapt_msg_req_entry_del_handler(struct pipeline *p, void *msg)
+{
+ struct pipeline_cgnapt_entry_delete_msg_req *req = msg;
+ struct pipeline_cgnapt_entry_delete_msg_rsp *rsp = msg;
+ struct pipeline_cgnapt *p_nat = (struct pipeline_cgnapt *)p;
+
+ if (CGNAPT_DEBUG) {
+ uint8_t *KeyP = (void *)(&req->key);
+ int i = 0;
+
+ printf("pipeline_cgnapt_msg_req_entry_del_handler - Key: ");
+ for (i = 0; i < (int)sizeof(struct pipeline_cgnapt_entry_key);
+ i++)
+ printf(" %02x", KeyP[i]);
+ printf(" ,KeySize %u\n",
+ (int)sizeof(struct pipeline_cgnapt_entry_key));
+ }
+
+ struct cgnapt_table_entry entry;
+
+ /* If ingress key */
+ if (!is_phy_port_privte(req->key.pid))
+ req->key.pid = 0xffff;
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ req->key.port = 0xffff;
+ #endif
+
+ int32_t position;
+ position = rte_hash_lookup(napt_common_table, &req->key);
+ if (position == -ENOENT) {
+ printf("Entry not found\n");
+ return NULL;
+ }
+ memcpy(&entry, &napt_hash_tbl_entries[position],
+ sizeof(struct cgnapt_table_entry));
+ position = rte_hash_del_key(napt_common_table, &req->key);
+ p_nat->n_cgnapt_entry_deleted++;
+
+ struct pipeline_cgnapt_entry_key second_key;
+
+ if (is_phy_port_privte(req->key.pid)) {
+ /* key is for egress - make second key for ingress */
+ second_key.ip = entry.data.pub_ip;
+ second_key.port = entry.data.pub_port;
+ second_key.pid = 0xffff;
+
+ } else {
+ /* key is for ingress - make second key for egress */
+ second_key.ip = entry.data.u.prv_ip;
+ second_key.port = entry.data.prv_port;
+ second_key.pid = entry.data.prv_phy_port;
+ }
+
+ #ifdef NAT_ONLY_CONFIG_REQ
+ if (nat_only_config_flag)
+ second_key.port = 0xffff;
+ #endif
+
+ position = rte_hash_del_key(napt_common_table, &second_key);
+ p_nat->n_cgnapt_entry_deleted++;
+
+ return rsp;
+}
+
+void *pipeline_cgnapt_msg_req_entry_sync_handler(struct pipeline *p, void *msg)
+{
+ struct pipeline_cgnapt_entry_delete_msg_req *req = msg;
+ struct pipeline_cgnapt_entry_delete_msg_rsp *rsp = msg;
+
+ rsp->status = rte_pipeline_table_entry_delete(
+ p->p,
+ p->table_id[0],
+ &req->key,
+ &rsp->key_found, NULL);
+
+ return rsp;
+}
+
+/**
+ * Function to print the NAPT key
+ *
+ * @param key
+ * A pointer to struct pipeline_cgnapt_entry_key
+ */
+void print_key(struct pipeline_cgnapt_entry_key *key)
+{
+ uint8_t *KeyP = (void *)(key);
+ int i = 0;
+
+ printf("\nKey: ");
+ for (i = 0; i < (int)sizeof(struct pipeline_cgnapt_entry_key); i++)
+ printf(" %02x", KeyP[i]);
+}
+
+/**
+ * Function to print the table entry
+ *
+ * @param entry
+ * A pointer to struct rte_pipeline_table_entry
+ */
+void print_entry1(struct rte_pipeline_table_entry *entry)
+{
+ uint8_t *entryP = (void *)(entry);
+ int i = 0;
+
+ printf("Entry: ");
+ for (i = 0; i < (int)sizeof(struct rte_pipeline_table_entry); i++)
+ printf(" %02x", entryP[i]);
+}
+
+/**
+ * Function to print the NAPT table entry
+ *
+ * @param entry
+ * A pointer to struct cgnapt_table_entry
+ */
+void print_cgnapt_entry(struct cgnapt_table_entry *entry)
+{
+ uint8_t *entryP = (void *)(entry);
+ int i = 0;
+
+ printf("CGNAPT Entry: ");
+ for (i = 0; i < (int)sizeof(struct cgnapt_table_entry); i++)
+ printf(" %02x", entryP[i]);
+ printf(" size:%d\n", (int)sizeof(struct cgnapt_table_entry));
+}
+
+/**
+ * Function to get a free port
+ *
+ * @param p_nat
+ * A pointer to struct pipeline_cgnapt
+ * @param public_ip
+ * A uint32_t pointer to return corresponding ip address
+ *
+ * @return
+ * free port number, 0 if error
+ */
+int get_free_iport(struct pipeline_cgnapt *p_nat, uint32_t *public_ip)
+{
+ int port = -1;
+ /* If we don't have a valid napt_port_alloc_elem get one from
+ * port_alloc_ring
+ */
+ if (p_nat->allocated_ports == NULL) {
+ void *ports;
+ int ret;
+
+ ret = rte_ring_dequeue(p_nat->port_alloc_ring, &ports);
+ if (ret == 0) {
+ p_nat->allocated_ports =
+ (struct napt_port_alloc_elem *)ports;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->gfp_get++;
+ #endif
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 3)
+ printf("p_nat->allocated_ports %p\n",
+ p_nat->allocated_ports);
+ #endif
+ } else {
+ printf("CGNAPT Err - get_free_iport rte_ring_dequeue "
+ "failed");
+ printf("%d, %d, %d\n", rte_ring_count(
+ p_nat->port_alloc_ring), rte_ring_free_count(
+ p_nat->port_alloc_ring), ret);
+
+ #ifdef CGNAPT_DEBUGGING
+ #ifdef CGNAPT_DBG_PRNT
+ printf("Th%d GFP:: %" PRIu64 ", %" PRIu64 ", "
+ "%" PRIu64", %" PRIu64 ",\n", p_nat->pipeline_num,
+ p_nat->gfp_get, p_nat->gfp_ret, p_nat->gfp_suc,
+ p_nat->gfp_err);
+
+ p_nat->gfp_err++;
+ #endif
+ #endif
+ return port;
+ }
+ }
+
+ /* get the port from index count-1 and decrease count */
+ port = p_nat->allocated_ports->ports
+ [p_nat->allocated_ports->count - 1];
+ *public_ip = p_nat->allocated_ports->ip_addr
+ [p_nat->allocated_ports->count - 1];
+
+ p_nat->allocated_ports->count -= 1;
+
+ /* if count is zero, return buffer to mem pool */
+ if (p_nat->allocated_ports->count == 0) {
+ rte_mempool_put(napt_port_pool, p_nat->allocated_ports);
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->gfp_ret++;
+ #ifdef CGNAPT_DBG_PRNT
+ printf("Th%d Returned to pool p_nat->allocated_ports %p,",
+ p_nat->pipeline_num, p_nat->allocated_ports);
+ printf("%" PRIu64 ", %" PRIu64 ",",
+ p_nat->gfp_get, p_nat->gfp_ret);
+ printf("%" PRIu64 ", %" PRIu64 ",\n",
+ p_nat->gfp_suc, p_nat->gfp_err);
+ #endif
+ #endif
+
+ p_nat->allocated_ports = NULL;
+ }
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->gfp_suc++;
+ #endif
+
+ return port;
+}
+
+/**
+ * Function to free a port
+ *
+ * @param port_num
+ * Port number to free
+ * @param public_ip
+ * Corresponding ip address
+ * @param p_nat
+ * A pointer to struct pipeline_cgnapt
+ *
+ */
+void release_iport(uint16_t port_num, uint32_t public_ip,
+ struct pipeline_cgnapt *p_nat)
+{
+ /* If we don't have a valid napt_port_alloc_elem get one
+ * from mem pool
+ */
+ if (p_nat->free_ports == NULL) {
+ void *ports;
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->pfb_get++;
+ #endif
+
+ if (rte_mempool_get(napt_port_pool, &ports) < 0) {
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->pfb_err++;
+ #endif
+ printf("CGNAPT release_iport error in getting "
+ "port alloc buffer\n");
+ return;
+ }
+
+ p_nat->free_ports = (struct napt_port_alloc_elem *)ports;
+ p_nat->free_ports->count = 0;
+ }
+
+ /* put the port at index count and increase count */
+ p_nat->free_ports->ip_addr[p_nat->free_ports->count] = public_ip;
+ p_nat->free_ports->ports[p_nat->free_ports->count] = port_num;
+ p_nat->free_ports->count += 1;
+
+ /* if napt_port_alloc_elem is full add it to ring */
+ {
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->pfb_ret++;
+ #endif
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG >= 2) {
+ printf("CGNAPT port_alloc_ring before EnQ Cnt %d, Free %d\n",
+ rte_ring_count(p_nat->port_alloc_ring),
+ rte_ring_free_count(p_nat->port_alloc_ring));
+ }
+ #endif
+
+ if (rte_ring_enqueue(p_nat->port_alloc_ring,
+ (void *)p_nat->free_ports) != 0) {
+ printf("CGNAPT release_iport Enqueue error %p\n",
+ p_nat->free_ports);
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->pfb_err++;
+ #endif
+ }
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG >= 2) {
+ printf("CGNAPT port_alloc_ring after EnQ Cnt %d",
+ rte_ring_count(p_nat->port_alloc_ring));
+ printf("Free %d\n",
+ rte_ring_free_count(p_nat->port_alloc_ring));
+ }
+ #endif
+
+ p_nat->free_ports = NULL;
+ }
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->pfb_suc++;
+ #endif
+}
+
+/**
+ * Function to initialize max ports per client data structures
+ * Called during dynamic NAPT initialization.
+ *
+ * @param p_nat
+ * A pointer to struct pipeline_cgnapt
+ *
+ * @return
+ * 0 if success, negative if error
+ */
+int init_max_port_per_client(
+ __rte_unused struct pipeline_cgnapt *p_nat)
+{
+ if (max_port_per_client_hash)
+ return -1;
+
+ /*MPPC_ALREADY_EXISTS */
+
+ int i = 0;
+
+ max_port_per_client_hash =
+ rte_hash_create(&max_port_per_client_hash_params);
+ if (!max_port_per_client_hash)
+ return -2;
+
+ /*MPPC_HASH_CREATE_ERROR */
+
+ max_port_per_client_array =
+ rte_zmalloc(NULL,
+ sizeof(struct max_port_per_client) * MAX_DYN_ENTRY,
+ RTE_CACHE_LINE_SIZE);
+ if (!max_port_per_client_array)
+ return -3;
+
+ /*MPPC_ARRAY_CREATE_ERROR */
+
+ for (i = 0; i < MAX_DYN_ENTRY; i++) {
+ max_port_per_client_array[i].prv_ip = 0;
+ max_port_per_client_array[i].prv_phy_port = 0;
+ max_port_per_client_array[i].max_port_cnt = 0;
+ }
+
+ return 0;
+ /*MPPC_SUCCESS */
+}
+
+/**
+ * Function to check if max ports for a client is reached
+ *
+ * @param prv_ip_param
+ * A uint32_t ip address of client
+ * @param prv_phy_port_param
+ * A uint32_t physical port id of the client
+ * @param p_nat
+ * A pointer to struct pipeline_cgnapt
+ *
+ * @return
+ * 0 if max port not reached, 1 if reached, -1 if error
+ */
+int is_max_port_per_client_reached(uint32_t prv_ip_param,
+ uint32_t prv_phy_port_param,
+ struct pipeline_cgnapt *p_nat)
+{
+ int index = MAX_PORT_INVALID_KEY;
+
+ struct max_port_per_client_key key = {
+ .prv_ip = prv_ip_param,
+ .prv_phy_port = prv_phy_port_param,
+ };
+
+ index = rte_hash_lookup(max_port_per_client_hash, (const void *)&key);
+
+ if (index < 0)
+ return MAX_PORT_INVALID_KEY;
+
+ if (max_port_per_client_array[index].max_port_cnt >=
+ p_nat->max_port_per_client)
+ return MAX_PORT_REACHED;
+
+ return MAX_PORT_NOT_REACHED;
+}
+
+/**
+ * Function to increase max ports for a client
+ *
+ * @param prv_ip_param
+ * A uint32_t ip address of client
+ * @param prv_phy_port_param
+ * A uint32_t physical port id of the client
+ * @param p_nat
+ * A pointer to struct pipeline_cgnapt
+ *
+ * @return
+ * 0 if max port reached, 1 if success, 2 if new entry, -1 if error
+ */
+int increment_max_port_counter(uint32_t prv_ip_param,
+ uint32_t prv_phy_port_param,
+ struct pipeline_cgnapt *p_nat)
+{
+ int index = MAX_PORT_INC_ERROR;
+
+ struct max_port_per_client_key key = {
+ .prv_ip = prv_ip_param,
+ .prv_phy_port = prv_phy_port_param,
+ };
+
+ index = rte_hash_lookup(max_port_per_client_hash, (const void *)&key);
+
+ if (index == -EINVAL)
+ return MAX_PORT_INC_ERROR;
+
+ if (index == -ENOENT) {
+ if (max_port_per_client_add_entry(prv_ip_param,
+ prv_phy_port_param,
+ p_nat) <= 0)
+ return MAX_PORT_INC_ERROR;
+
+ return 2; /*return MAX_PORT_NEW_ENTRY; */
+ }
+
+ if (CGNAPT_DEBUG > 2)
+ printf("%s: max_port_cnt(%d), p_nat_max(%d)\n", __func__,
+ max_port_per_client_array[index].max_port_cnt,
+ p_nat->max_port_per_client);
+
+ if (max_port_per_client_array[index].max_port_cnt <
+ p_nat->max_port_per_client) {
+ max_port_per_client_array[index].max_port_cnt++;
+ return MAX_PORT_INC_SUCCESS;
+ }
+
+ return MAX_PORT_INC_REACHED;
+}
+
+/**
+ * Function to decrease max ports for a client
+ *
+ * @param prv_ip_param
+ * A uint32_t ip address of client
+ * @param prv_phy_port_param
+ * A uint32_t physical port id of the client
+ * @param p_nat
+ * A pointer to struct pipeline_cgnapt
+ *
+ * @return
+ * 0 if count already 0, 1 if success, -1 if error
+ */
+int decrement_max_port_counter(uint32_t prv_ip_param,
+ uint32_t prv_phy_port_param,
+ struct pipeline_cgnapt *p_nat)
+{
+ int index = MAX_PORT_DEC_ERROR;
+
+ struct max_port_per_client_key key = {
+ .prv_ip = prv_ip_param,
+ .prv_phy_port = prv_phy_port_param,
+ };
+
+ index = rte_hash_lookup(max_port_per_client_hash, (const void *)&key);
+ if (index < 0) {
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->max_port_dec_err1++;
+ #endif
+ return MAX_PORT_DEC_ERROR;
+
+ }
+
+ if (max_port_per_client_array[index].max_port_cnt > 0) {
+ /* If it is the last port,ret this info which is used for
+ * max_cli_per_pub_ip
+ */
+
+ max_port_per_client_array[index].max_port_cnt--;
+ /* Count should be atomic but we are good as we have only
+ * one task handling this counter at a time (core affinity)
+ */
+ }
+
+ if (max_port_per_client_array[index].max_port_cnt <= 0) {
+ if (max_port_per_client_del_entry
+ (prv_ip_param, prv_phy_port_param, p_nat) <= 0) {
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->max_port_dec_err2++;
+ #endif
+ return MAX_PORT_DEC_ERROR;
+ }
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->max_port_dec_err3++;
+ #endif
+
+ return MAX_PORT_DEC_REACHED;
+ }
+
+ #ifdef CGNAPT_DEBUGGING
+ p_nat->max_port_dec_success++;
+ #endif
+
+ return MAX_PORT_DEC_SUCCESS;
+}
+
+/**
+ * Function to add a max ports per client entry
+ *
+ * @param prv_ip_param
+ * A uint32_t ip address of client
+ * @param prv_phy_port_param
+ * A uint32_t physical port id of the client
+ * @param p_nat
+ * A pointer to struct pipeline_cgnapt
+ *
+ * @return
+ * 0 no success, 1 if success, -1 if error
+ */
+int max_port_per_client_add_entry(
+ uint32_t prv_ip_param,
+ uint32_t prv_phy_port_param,
+ __rte_unused struct pipeline_cgnapt *p_nat)
+{
+ int index = MAX_PORT_ADD_ERROR;
+
+ struct max_port_per_client_key key = {
+ .prv_ip = prv_ip_param,
+ .prv_phy_port = prv_phy_port_param,
+ };
+
+ index = rte_hash_lookup(max_port_per_client_hash, (const void *)&key);
+ if (index == -EINVAL)
+ return MAX_PORT_ADD_ERROR;
+
+ if (index >= 0)
+ return MAX_PORT_ADD_UNSUCCESS;
+
+ if (index == -ENOENT) {
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2)
+ printf("max_port_per_client_add_entry fn: "
+ "Entry does not exist\n");
+ #endif
+
+ index =
+ rte_hash_add_key(max_port_per_client_hash,
+ (const void *)&key);
+ if (index == -ENOSPC)
+ return MAX_PORT_ADD_UNSUCCESS;
+
+ #ifdef CGNAPT_DBG_PRNT
+ if (CGNAPT_DEBUG > 2)
+ printf("max_port_per_client_add_entry fn:"
+ "Add entry index(%d)\n", index);
+ #endif
+
+ max_port_per_client_array[index].prv_ip = prv_ip_param;
+ max_port_per_client_array[index].prv_phy_port =
+ prv_phy_port_param;
+ }
+
+ max_port_per_client_array[index].max_port_cnt++;
+ return MAX_PORT_ADD_SUCCESS;
+}
+
+/**
+ * Function to delete a max ports per client entry
+ *
+ * @param prv_ip_param
+ * A uint32_t ip address of client
+ * @param prv_phy_port_param
+ * A uint32_t physical port id of the client
+ * @param p_nat
+ * A pointer to struct pipeline_cgnapt
+ *
+ * @return
+ * 0 no success, 1 if success, -1 if error
+ */
+int max_port_per_client_del_entry(
+ uint32_t prv_ip_param,
+ uint32_t prv_phy_port_param,
+ __rte_unused struct pipeline_cgnapt *p_nat)
+{
+ int index = MAX_PORT_DEL_ERROR;
+
+ struct max_port_per_client_key key = {
+ .prv_ip = prv_ip_param,
+ .prv_phy_port = prv_phy_port_param,
+ };
+
+ index = rte_hash_lookup(max_port_per_client_hash, (const void *)&key);
+
+ if (index == -EINVAL)
+ return MAX_PORT_DEL_ERROR;
+
+ if (index == -ENOENT)
+ return MAX_PORT_DEL_UNSUCCESS;
+
+ index = rte_hash_del_key(max_port_per_client_hash, (const void *)&key);
+ max_port_per_client_array[index].prv_ip = 0;
+ max_port_per_client_array[index].prv_phy_port = 0;
+ max_port_per_client_array[index].max_port_cnt = 0;
+
+ return MAX_PORT_DEL_SUCCESS;
+}
+
+/**
+ * Function to execute debug commands
+ *
+ * @param p
+ * A pointer to struct pipeline
+ * @param msg
+ * void pointer to incoming arguments
+ */
+void *pipeline_cgnapt_msg_req_entry_dbg_handler(struct pipeline *p, void *msg)
+{
+ struct pipeline_cgnapt_entry_delete_msg_rsp *rsp = msg;
+ uint8_t *Msg = msg;
+ struct pipeline_cgnapt *p_nat = (struct pipeline_cgnapt *)p;
+
+ rsp->status = 0;
+
+ if (Msg[CGNAPT_DBG_CMD_OFST] == CGNAPT_DBG_CMD_STATS_SHOW) {
+ printf("\nCG-NAPT Packet Stats:\n");
+ printf("Received %" PRIu64 ",", p_nat->receivedPktCount);
+ printf("Missed %" PRIu64 ",", p_nat->missedPktCount);
+ printf("Dropped %" PRIu64 ",", p_nat->naptDroppedPktCount);
+ printf("Translated %" PRIu64 ",", p_nat->naptedPktCount);
+ printf("ingress %" PRIu64 ",", p_nat->inaptedPktCount);
+ printf("egress %" PRIu64 "\n", p_nat->enaptedPktCount);
+ printf("arp pkts %" PRIu64 "\n", p_nat->arpicmpPktCount);
+
+ #ifdef CGNAPT_DEBUGGING
+ printf("\n Drop detail 1:%" PRIu64 ",",
+ p_nat->naptDroppedPktCount1);
+ printf("\n Drop detail 2:%" PRIu64 ",",
+ p_nat->naptDroppedPktCount2);
+ printf("\n Drop detail 3:%" PRIu64 ",",
+ p_nat->naptDroppedPktCount3);
+ printf("\n Drop detail 4:%" PRIu64 ",",
+ p_nat->naptDroppedPktCount4);
+ printf("\n Drop detail 5:%" PRIu64 ",",
+ p_nat->naptDroppedPktCount5);
+ printf("\n Drop detail 6:%" PRIu64 "",
+ p_nat->naptDroppedPktCount6);
+
+ printf("\nPkt_miss: %" PRIu64 " %" PRIu64 "",
+ p_nat->missedpktcount1,
+ p_nat->missedpktcount2);
+ printf("\nPkt_miss: %" PRIu64 " %" PRIu64 "",
+ p_nat->missedpktcount3,
+ p_nat->missedpktcount4);
+ printf("\nPkt_miss: %" PRIu64 " %" PRIu64 "",
+ p_nat->missedpktcount5,
+ p_nat->missedpktcount6);
+ printf("\nPkt_miss: %" PRIu64 " %" PRIu64 "",
+ p_nat->missedpktcount7,
+ p_nat->missedpktcount8);
+ printf("\nPkt_miss: %" PRIu64 " %" PRIu64 "",
+ p_nat->missedpktcount9,
+ p_nat->missedpktcount10);
+
+ #endif
+
+ return rsp;
+ }
+
+ if (Msg[CGNAPT_DBG_CMD_OFST] == CGNAPT_DBG_CMD_STATS_CLEAR) {
+ printf("\nCG-NAPT Packet Stats:\n");
+ printf("Received %" PRIu64 ",", p_nat->receivedPktCount);
+ printf("Missed %" PRIu64 ",", p_nat->missedPktCount);
+ printf("Dropped %" PRIu64 ",", p_nat->naptDroppedPktCount);
+ printf("Translated %" PRIu64 ",", p_nat->naptedPktCount);
+ printf("ingress %" PRIu64 ",", p_nat->inaptedPktCount);
+ printf("egress %" PRIu64 "\n", p_nat->enaptedPktCount);
+ printf("arp pkts %" PRIu64 "\n", p_nat->arpicmpPktCount);
+
+ p_nat->naptedPktCount = 0;
+ p_nat->naptDroppedPktCount = 0;
+ p_nat->inaptedPktCount = 0;
+ p_nat->enaptedPktCount = 0;
+ p_nat->receivedPktCount = 0;
+ p_nat->missedPktCount = 0;
+ p_nat->arpicmpPktCount = 0;
+ printf("CG-NAPT Packet Stats cleared\n");
+ return rsp;
+ }
+
+ if (Msg[CGNAPT_DBG_CMD_OFST] == CGNAPT_DBG_CMD_DBG_LEVEL) {
+ CGNAPT_DEBUG = Msg[CGNAPT_DBG_CMD_OFST + 1];
+ printf("CG-NAPT debug level set to %d\n", CGNAPT_DEBUG);
+ return rsp;
+ }
+
+ if (Msg[CGNAPT_DBG_CMD_OFST] == CGNAPT_DBG_CMD_DBG_SHOW) {
+
+ printf("\nNAPT entries - added %" PRIu64 ",",
+ p_nat->n_cgnapt_entry_added);
+ printf("deleted %" PRIu64 ",", p_nat->n_cgnapt_entry_deleted);
+ printf("current %" PRIu64 "", p_nat->n_cgnapt_entry_added -
+ p_nat->n_cgnapt_entry_deleted);
+
+ printf("\nCG-NAPT Packet Stats:\n");
+ printf("Received %" PRIu64 ",", p_nat->receivedPktCount);
+ printf("Missed %" PRIu64 ",", p_nat->missedPktCount);
+ printf("Dropped %" PRIu64 ",", p_nat->naptDroppedPktCount);
+ printf("Translated %" PRIu64 ",", p_nat->naptedPktCount);
+ printf("ingress %" PRIu64 ",", p_nat->inaptedPktCount);
+ printf("egress %" PRIu64 "\n", p_nat->enaptedPktCount);
+ printf("arp pkts %" PRIu64 "\n", p_nat->arpicmpPktCount);
+
+ return rsp;
+ }
+ #ifdef PIPELINE_CGNAPT_INSTRUMENTATION
+ if (Msg[CGNAPT_DBG_CMD_OFST] == CGNAPT_DBG_CMD_INSTRUMENTATION) {
+ if (Msg[CGNAPT_DBG_CMD_OFST1] ==
+ CGNAPT_CMD_INSTRUMENTATION_SUB0) {
+
+ int index = 0;
+ uint32_t diff_sum = 0;
+
+ printf("CG-NAPT Instrumentation ...\n");
+ printf("Instrumentation data collected for fn# %d\n",
+ cgnapt_num_func_to_inst);
+ printf("Current collection index %d\n",
+ cgnapt_inst_index);
+
+ if (Msg[CGNAPT_DBG_CMD_OFST + 2] == 2) {
+ printf("Timer Start:\n");
+
+ for (index = 0; index < INST_ARRAY_SIZE; index++) {
+ if ((index % 5) == 0)
+ printf("\n");
+ printf(" 0x%jx", inst_start_time[index]);
+ }
+ printf("\n\nTimer End:\n");
+
+ for (index = 0; index < INST_ARRAY_SIZE; index++) {
+ if ((index % 5) == 0)
+ printf("\n");
+ printf(" 0x%jx", inst_end_time[index]);
+ }
+ }
+
+ for (index = 0; index < INST_ARRAY_SIZE; index++) {
+ inst_diff_time[index] = (uint32_t) (inst_end_time[index] -
+ inst_start_time[index]);
+ }
+
+ if (Msg[CGNAPT_DBG_CMD_OFST + 2] ==
+ CGNAPT_CMD_INSTRUMENTATION_SUB1) {
+ printf("\n\nTimer Diff:\n");
+
+ for (index = 0; index < INST_ARRAY_SIZE; index++) {
+ if (Msg[CGNAPT_DBG_CMD_OFST + 2] ==
+ CGNAPT_CMD_INSTRUMENTATION_SUB1) {
+ if ((index % 5) == 0)
+ printf("\n");
+ printf(" 0x%08x", inst_diff_time[index]);
+ }
+
+ diff_sum += inst_diff_time[index];
+ }
+
+ printf("\ndiff_sum %u, INST_ARRAY_SIZE %d, Ave Time %u\n",
+ diff_sum, INST_ARRAY_SIZE, (diff_sum / INST_ARRAY_SIZE));
+ } else if (Msg[CGNAPT_DBG_CMD_OFST + 1] ==
+ CGNAPT_CMD_INSTRUMENTATION_SUB1) {
+ /* p plid entry dbg 7 1 0
+ * p plid entry dbg 7 1 1 <--- pkt_work_cgnapt
+ * p plid entry dbg 7 1 2 <--- pkt4_work_cgnapt
+ * p plid entry dbg 7 1 3 <--- pkt_work_cgnapt_key
+ * p plid entry dbg 7 1 4 <--- pkt4_work_cgnapt_key
+ * p plid entry dbg 7 1 5 <--- in port ah to out port ah
+ * - pkt life in the system
+ * p plid entry dbg 7 1 6 <--- how long this instrumentation
+ * itself is taking
+ */
+ cgnapt_inst_index = 0;
+ cgnapt_num_func_to_inst = Msg[CGNAPT_DBG_CMD_OFST + 2];
+ printf("Instrumentation data collection started for fn# %d\n",
+ cgnapt_num_func_to_inst);
+ } else if (Msg[CGNAPT_DBG_CMD_OFST + 1] ==
+ CGNAPT_CMD_INSTRUMENTATION_SUB2) {
+ /* p plid entry dbg 7 2 0
+ * Test all major functions by calling them multiple times
+ * pkt_work_cgnapt, pkt4_work_cgnapt, pkt_work_cgnapt_key,
+ * pkt4_work_cgnapt_key
+ */
+ if (cgnapt_test_pktmbuf_pool == NULL) {
+ cgnapt_test_pktmbuf_pool = rte_pktmbuf_pool_create(
+ "cgnapt_test_pktmbuf_pool", 63, 32, 0,
+ RTE_MBUF_DEFAULT_BUF_SIZE,
+ rte_socket_id());
+ }
+
+ if (cgnapt_test_pktmbuf_pool == NULL)
+ printf("CGNAPT test mbuf pool create failed.\n");
+
+ struct rte_mbuf *cgnapt_test_pkt0 =
+ rte_pktmbuf_alloc(cgnapt_test_pktmbuf_pool);
+ if (cgnapt_test_pkt0 == NULL)
+ printf("CGNAPT test pkt 0 alloc failed.");
+ struct rte_mbuf *cgnapt_test_pkt1 =
+ rte_pktmbuf_alloc(cgnapt_test_pktmbuf_pool);
+ if (cgnapt_test_pkt1 == NULL)
+ printf("CGNAPT test pkt 1 alloc failed.");
+ struct rte_mbuf *cgnapt_test_pkt2 =
+ rte_pktmbuf_alloc(cgnapt_test_pktmbuf_pool);
+ if (cgnapt_test_pkt2 == NULL)
+ printf("CGNAPT test pkt 2 alloc failed.");
+ struct rte_mbuf *cgnapt_test_pkt3 =
+ rte_pktmbuf_alloc(cgnapt_test_pktmbuf_pool);
+ if (cgnapt_test_pkt3 == NULL)
+ printf("CGNAPT test pkt 3 alloc failed.");
+
+ struct rte_mbuf *cgnapt_test_pkts[4];
+
+ cgnapt_test_pkts[0] = cgnapt_test_pkt0;
+ cgnapt_test_pkts[1] = cgnapt_test_pkt1;
+ cgnapt_test_pkts[2] = cgnapt_test_pkt2;
+ cgnapt_test_pkts[3] = cgnapt_test_pkt3;
+
+ uint32_t src_addr_offset =
+ MBUF_HDR_ROOM + ETH_HDR_SIZE + IP_HDR_SRC_ADR_OFST;
+ /* header room + eth hdr size +
+ * src_aadr offset in ip header
+ */
+ uint32_t dst_addr_offset =
+ MBUF_HDR_ROOM + ETH_HDR_SIZE + IP_HDR_DST_ADR_OFST;
+ /* header room + eth hdr size +
+ * dst_aadr offset in ip header
+ */
+ uint32_t prot_offset =
+ MBUF_HDR_ROOM + ETH_HDR_SIZE + IP_HDR_PROTOCOL_OFST;
+ /* header room + eth hdr size +
+ * srprotocol char offset in ip header
+ */
+ int pktCnt = 0, entCnt = 0, exCnt = 0;
+
+ for (pktCnt = 0; pktCnt < 4; pktCnt++) {
+ uint32_t *src_addr =
+ RTE_MBUF_METADATA_UINT32_PTR
+ (cgnapt_test_pkts[pktCnt], src_addr_offset);
+ uint32_t *dst_addr =
+ RTE_MBUF_METADATA_UINT32_PTR
+ (cgnapt_test_pkts[pktCnt], dst_addr_offset);
+ uint8_t *protocol =
+ RTE_MBUF_METADATA_UINT8_PTR(cgnapt_test_pkts
+ [pktCnt],
+ prot_offset);
+ uint8_t *phy_port =
+ RTE_MBUF_METADATA_UINT8_PTR(cgnapt_test_pkts
+ [pktCnt], 70);
+ uint8_t *eth_dest =
+ RTE_MBUF_METADATA_UINT8_PTR(cgnapt_test_pkts
+ [pktCnt],
+ MBUF_HDR_ROOM);
+ uint8_t *eth_src =
+ RTE_MBUF_METADATA_UINT8_PTR(
+ cgnapt_test_pkts[pktCnt],
+ MBUF_HDR_ROOM +
+ 6);
+ uint16_t *src_port =
+ RTE_MBUF_METADATA_UINT16_PTR
+ (cgnapt_test_pkts[pktCnt],
+ MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE);
+ uint16_t *dst_port =
+ RTE_MBUF_METADATA_UINT16_PTR
+ (cgnapt_test_pkts[pktCnt],
+ MBUF_HDR_ROOM + ETH_HDR_SIZE +
+ IP_HDR_SIZE + 2);
+ *src_addr = 0xc0a80001;
+ *dst_addr = 0x90418634;
+ *protocol = 0x6;
+ *phy_port = 0;
+ *src_port = 1234;
+ *dst_port = 4000;
+ eth_src[0] = 0xAB;
+ eth_src[1] = 0xAB;
+ eth_src[2] = 0xAB;
+ eth_src[3] = 0xAB;
+ eth_src[4] = 0xAB;
+ eth_src[5] = 0xAB;
+ eth_dest[0] = 0x90;
+ eth_dest[1] = 0xE2;
+ eth_dest[2] = 0xba;
+ eth_dest[3] = 0x54;
+ eth_dest[4] = 0x67;
+ eth_dest[5] = 0xc8;
+ }
+ struct rte_pipeline_table_entry *table_entries[4];
+ struct cgnapt_table_entry ctable_entries[4];
+ table_entries[0] = (struct rte_pipeline_table_entry *)
+ &ctable_entries[0];
+ table_entries[1] = (struct rte_pipeline_table_entry *)
+ &ctable_entries[1];
+ table_entries[2] = (struct rte_pipeline_table_entry *)
+ &ctable_entries[2];
+ table_entries[3] = (struct rte_pipeline_table_entry *)
+ &ctable_entries[3];
+ for (entCnt = 0; entCnt < 4; entCnt++) {
+ ctable_entries[entCnt].head.action =
+ RTE_PIPELINE_ACTION_PORT;
+ ctable_entries[entCnt].head.port_id = 0;
+
+ ctable_entries[entCnt].data.prv_ip = 0x01020304;
+ ctable_entries[entCnt].data.prv_port = 1234;
+ ctable_entries[entCnt].data.pub_ip = 0x0a0b0c0d;
+ ctable_entries[entCnt].data.pub_port = 4000;
+ ctable_entries[entCnt].data.prv_phy_port = 0;
+ ctable_entries[entCnt].data.pub_phy_port = 1;
+ ctable_entries[entCnt].data.ttl = 500;
+ }
+
+ uint64_t time1 = rte_get_tsc_cycles();
+
+ for (exCnt = 0; exCnt < 1000; exCnt++) {
+ pkt_work_cgnapt_key(cgnapt_test_pkts[0],
+ instrumentation_port_in_arg);
+ }
+ uint64_t time2 = rte_get_tsc_cycles();
+
+ printf("times for %d times execution of "
+ "pkt_work_cgnapt_key 0x%jx",
+ exCnt, time1);
+ printf(", 0x%jx, diff %" PRIu64 "\n", time2,
+ time2 - time1);
+
+ time1 = rte_get_tsc_cycles();
+ for (exCnt = 0; exCnt < 1000000; exCnt++) {
+ pkt_work_cgnapt_key(cgnapt_test_pkts[0],
+ instrumentation_port_in_arg);
+ }
+ time2 = rte_get_tsc_cycles();
+ printf("times for %d times execution of "
+ "pkt_work_cgnapt_key 0x%jx", exCnt, time1);
+ printf("0x%jx, diff %" PRIu64 "\n", time2,
+ time2 - time1);
+
+ time1 = rte_get_tsc_cycles();
+ for (exCnt = 0; exCnt < 1000; exCnt++) {
+ pkt4_work_cgnapt_key(cgnapt_test_pkts,
+ instrumentation_port_in_arg);
+ }
+ time2 = rte_get_tsc_cycles();
+ printf("times for %d times execution of "
+ "pkt4_work_cgnapt_key 0x%jx",
+ exCnt, time1);
+ printf(" 0x%jx, diff %" PRIu64 "\n", time2,
+ time2 - time1);
+
+ time1 = rte_get_tsc_cycles();
+ for (exCnt = 0; exCnt < 1000000; exCnt++) {
+ pkt4_work_cgnapt_key(cgnapt_test_pkts,
+ instrumentation_port_in_arg);
+ }
+ time2 = rte_get_tsc_cycles();
+ printf("times for %d times execution of "
+ "pkt4_work_cgnapt_key 0x%jx",
+ exCnt, time1);
+ printf("0x%jx, diff %" PRIu64 "\n", time2,
+ time2 - time1);
+
+ uint64_t mask = 0xff;
+
+ time1 = rte_get_tsc_cycles();
+ for (exCnt = 0; exCnt < 1000; exCnt++) {
+ pkt_work_cgnapt(cgnapt_test_pkts[0],
+ table_entries[0], 3, &mask,
+ NULL);
+ }
+ time2 = rte_get_tsc_cycles();
+ printf("times for %d times execution of "
+ "pkt_work_cgnapt 0x%jx",
+ exCnt, time1);
+ printf("0x%jx, diff %" PRIu64 "\n", time2,
+ time2 - time1);
+
+ time1 = rte_get_tsc_cycles();
+ for (exCnt = 0; exCnt < 1000000; exCnt++) {
+ pkt_work_cgnapt(cgnapt_test_pkts[0],
+ table_entries[0], 3, &mask,
+ NULL);
+ }
+ time2 = rte_get_tsc_cycles();
+ printf("times for %d times execution of "
+ "pkt_work_cgnapt 0x%jx",
+ exCnt, time1);
+ printf("0x%jx, diff %" PRIu64 "\n", time2,
+ time2 - time1);
+
+ time1 = rte_get_tsc_cycles();
+ for (exCnt = 0; exCnt < 1000; exCnt++) {
+ pkt4_work_cgnapt(cgnapt_test_pkts,
+ table_entries, 0, &mask, NULL);
+ }
+ time2 = rte_get_tsc_cycles();
+ printf("times for %d times execution of "
+ "pkt4_work_cgnapt 0x%jx",
+ exCnt, time1);
+ printf("0x%jx, diff % " PRIu64 "\n", time2,
+ time2 - time1);
+
+ int idummy = ctable_entries[0].data.prv_port;
+
+ idummy++;
+
+ }
+ }
+ return rsp;
+ }
+ #endif
+
+ if (Msg[CGNAPT_DBG_CMD_OFST] == CGNAPT_DBG_CMD_LS_ENTRY) {
+ printf("CG-NAPT be entries are:\n");
+ printf("Pipeline pointer %p\n", p);
+ return rsp;
+ }
+
+ if (Msg[CGNAPT_DBG_CMD_OFST] == CGNAPT_DBG_CMD_DYN) {
+ printf("Total Number of dynamic napt entries: %" PRIu64 "\n",
+ p_nat->dynCgnaptCount);
+
+ #ifdef CGNAPT_DEBUGGING
+ printf("MAX PORT PER CLIENT:");
+ printf("%" PRIu64 ",%" PRIu64 ",%" PRIu64 "\n",
+ p_nat->max_port_dec_err1, p_nat->max_port_dec_err2,
+ p_nat->max_port_dec_err3);
+ printf("MPPC success : %" PRIu64 "\n",
+ p_nat->max_port_dec_success);
+
+ printf("Release port:err:%" PRIu64 ",ret::%" PRIu64 ",get::%"
+ PRIu64 ",suc::%" PRIu64 "\n", p_nat->pfb_err,
+ p_nat->pfb_ret, p_nat->pfb_get, p_nat->pfb_suc);
+ printf("Get port::err:%" PRIu64 ",ret::%" PRIu64 ",get::%"
+ PRIu64 ",suc::%" PRIu64 "\n", p_nat->gfp_err,
+ p_nat->gfp_ret, p_nat->gfp_get, p_nat->gfp_suc);
+ printf("Ring Info:\n");
+ rte_ring_dump(stdout, p_nat->port_alloc_ring);
+ #endif
+ return rsp;
+ }
+ if (Msg[CGNAPT_DBG_CMD_OFST] == CGNAPT_DBG_CMD_IPV6) {
+ dual_stack_enable = Msg[CGNAPT_DBG_CMD_OFST + 1];
+ printf("Dual Stack option set: %x\n", dual_stack_enable);
+ return rsp;
+ }
+
+ if (Msg[CGNAPT_DBG_CMD_OFST] == CGNAPT_DBG_CMD_MAPS_INFO) {
+ pipelines_port_info();
+ pipelines_map_info();
+ return rsp;
+ }
+
+ if (Msg[CGNAPT_DBG_CMD_OFST] == CGNAPT_DBG_CMD_ITER_COM_TBL) {
+ uint32_t count = 0;
+ const void *key;
+ void *data;
+ uint32_t next = 0;
+ int32_t index = 0;
+
+ do {
+ index =
+ rte_hash_iterate(napt_common_table, &key, &data,
+ &next);
+
+ if ((index != -EINVAL) && (index != -ENOENT)) {
+ printf("\n%04d ", count);
+ rte_hexdump(stdout, "KEY", key,
+ sizeof(struct
+ pipeline_cgnapt_entry_key));
+
+ //print_key((struct pipeline_cgnapt_entry_key *)
+ // key);
+ int32_t position =
+ rte_hash_lookup(napt_common_table,
+ key);
+ print_cgnapt_entry(&napt_hash_tbl_entries
+ [position]);
+ }
+
+ count++;
+ } while (index != -ENOENT);
+ return rsp;
+ }
+
+ if (Msg[CGNAPT_DBG_CMD_OFST] == CGNAPT_DBG_CMD_IF_STATS) {
+
+ struct app_params *app =
+ (struct app_params *)p_nat->app_params_addr;
+ uint8_t cmd[2];
+
+ cmd[0] = Msg[CGNAPT_DBG_CMD_OFST + 1];
+ cmd[1] = Msg[CGNAPT_DBG_CMD_OFST + 2];
+ switch (cmd[0]) {
+ case CGNAPT_IF_STATS_HWQ:
+ printf("n_pktq_hwq_int :%d\n", app->n_pktq_hwq_in);
+ printf("n_pktq_hwq_out :%d\n", app->n_pktq_hwq_out);
+ printf("\n");
+ uint8_t i, j;
+
+ for (i = 0; i < app->n_pktq_hwq_in; i++) {
+ struct rte_eth_stats stats;
+
+ rte_eth_stats_get(p_nat->links_map[i], &stats);
+
+ if (is_phy_port_privte(i))
+ printf("Private Port Stats %d\n", i);
+ else
+ printf("Public Port Stats %d\n", i);
+
+ printf("\n\tipackets : %" PRIu64 "",
+ stats.ipackets);
+ printf("\n\topackets : %" PRIu64 "",
+ stats.opackets);
+ printf("\n\tierrors : %" PRIu64 "",
+ stats.ierrors);
+ printf("\n\toerrors : %" PRIu64 "",
+ stats.oerrors);
+ printf("\n\trx_nombuf: %" PRIu64 "",
+ stats.rx_nombuf);
+ printf("\n");
+ if (is_phy_port_privte(i))
+ printf("Private Q:");
+ else
+ printf("Public Q:");
+ for (j = 0; j < RTE_ETHDEV_QUEUE_STAT_CNTRS;
+ j++)
+ printf(" %" PRIu64 ", %" PRIu64 "|",
+ stats.q_ipackets[j],
+ stats.q_opackets[j]);
+
+ printf("\n\n");
+
+ }
+
+ return rsp;
+
+ case CGNAPT_IF_STATS_SWQ:
+
+ printf("n_pktq_swq :%d\n", app->n_pktq_swq);
+
+ if (cmd[1] < app->n_pktq_swq) {
+ rte_ring_dump(stdout, app->swq[cmd[1]]);
+ return rsp;
+ }
+ printf("SWQ number is invalid\n");
+ return rsp;
+
+ case CGNAPT_IF_STATS_OTH:
+ printf("\n");
+ printf("config_file:%s\n", app->config_file);
+ printf("script_file:%s\n", app->script_file);
+ printf("parser_file:%s\n", app->parser_file);
+ printf("output_file:%s\n", app->output_file);
+ printf("n_msgq :%d\n", app->n_msgq);
+ printf("n_pktq_tm :%d\n", app->n_pktq_tm);
+ printf("n_pktq_source :%d\n", app->n_pktq_source);
+ printf("n_pktq_sink :%d\n", app->n_pktq_sink);
+ printf("n_pipelines :%d\n", app->n_pipelines);
+ printf("\n");
+ return rsp;
+ default:
+ printf("Command does not match\n\n");
+ return rsp;
+
+ } /* switch */
+
+ return rsp;
+ }
+
+ if (Msg[CGNAPT_DBG_CMD_OFST] == CGNAPT_DBG_MAX_CLI_PER_PUB_IP) {
+ if (nat_only_config_flag) {
+ printf("Command not supported for NAT only config.\n");
+ return rsp;
+ }
+ uint16_t ii;
+
+ printf("\tPublic IP: Num Clients\n");
+ for (ii = 0; ii < CGNAPT_MAX_PUB_IP; ii++)
+ printf("\t%x : %7d\n", all_public_ip[ii].ip,
+ rte_atomic16_read(&all_public_ip[ii].count));
+ return rsp;
+ }
+
+ if (Msg[CGNAPT_DBG_CMD_OFST] == CGNAPT_DBG_PUB_IP_LIST) {
+
+ int i;
+ for (i = 0; i < p_nat->pub_ip_count; i++)
+ printf("%x : (%d,%d)\n", p_nat->pub_ip_port_set[i].ip,
+ p_nat->pub_ip_port_set[i].start_port,
+ p_nat->pub_ip_port_set[i].end_port);
+ return rsp;
+ }
+
+ #ifdef CGNAPT_TIMING_INST
+ if (Msg[CGNAPT_DBG_CMD_OFST] == CGNAPT_DBG_TIMING_INST) {
+ if (Msg[CGNAPT_DBG_CMD_OFST + 1] == 0) {
+ p_nat->time_measurements_on = 1;
+ p_nat->time_measurements = 0;
+ printf("CGNAPT timing instrumentation turned on.\n");
+ printf("Max samples %d\n", p_nat->max_time_mesurements);
+ }
+ if (Msg[CGNAPT_DBG_CMD_OFST + 1] == 1) {
+ p_nat->time_measurements_on = 0;
+ printf("CGNAPT timing instrumentation turned off.\n");
+ printf("Cur Samples %d\n", p_nat->time_measurements);
+ }
+ if (Msg[CGNAPT_DBG_CMD_OFST + 1] == 2) {
+ uint64_t sum = p_nat->external_time_sum +
+ p_nat->internal_time_sum;
+ uint64_t isump = (p_nat->internal_time_sum * 100) / sum;
+ uint64_t esump = (p_nat->external_time_sum * 100) / sum;
+ printf("CGNAPT timing instrumentation status ...\n");
+ printf("Max Count %d, Cur Count %d, Status %d (1=ON)\n",
+ p_nat->max_time_mesurements,
+ p_nat->time_measurements,
+ p_nat->time_measurements_on);
+ printf("Internal Time Sum %" PRIu64 " , Ave %" PRIu64
+ ", percent %" PRIu64 "\n",
+ p_nat->internal_time_sum,
+ (p_nat->internal_time_sum /
+ p_nat->time_measurements), isump);
+ printf("External Time Sum %" PRIu64 " , Ave %" PRIu64
+ ", percent %" PRIu64 "\n",
+ p_nat->external_time_sum,
+ (p_nat->external_time_sum /
+ p_nat->time_measurements), esump);
+ }
+
+ return rsp;
+ }
+ #endif
+
+ if (Msg[CGNAPT_DBG_CMD_OFST] == CGNAPT_DBG_CMD_PRINT_NSP) {
+ struct cgnapt_nsp_node *ll = nsp_ll;
+
+ while (ll != NULL) {
+ fprintf(stderr, "NSP Prefix/Depth=>%x%x:%x%x:%x%x: "
+ "%x%x:%x%x:%x%x:%x%x:%x%x/%d",
+ ll->nsp.prefix[0], ll->nsp.prefix[1],
+ ll->nsp.prefix[2], ll->nsp.prefix[3],
+ ll->nsp.prefix[4], ll->nsp.prefix[5],
+ ll->nsp.prefix[6], ll->nsp.prefix[7],
+ ll->nsp.prefix[8], ll->nsp.prefix[9],
+ ll->nsp.prefix[10], ll->nsp.prefix[11],
+ ll->nsp.prefix[12], ll->nsp.prefix[13],
+ ll->nsp.prefix[14], ll->nsp.prefix[15],
+ ll->nsp.depth);
+
+ ll = ll->next;
+ }
+
+ return rsp;
+ }
+
+ printf("CG-NAPT debug handler called with wrong args %x %x\n", Msg[0],
+ Msg[1]);
+ int i = 0;
+
+ for (i = 0; i < 20; i++)
+ printf("%02x ", Msg[i]);
+ printf("\n");
+ return rsp;
+}
+
+/**
+ * Function to print num of clients per IP address
+ *
+ */
+void print_num_ip_clients(void)
+{
+ if (nat_only_config_flag) {
+ printf("Command not supported for NAT only config.\n");
+ return;
+ }
+
+ uint16_t ii;
+ printf("\tPublic IP: Num Clients\n");
+ for (ii = 0; ii < CGNAPT_MAX_PUB_IP; ii++)
+ printf("\t%08x : %7d\n", all_public_ip[ii].ip,
+ rte_atomic16_read(&all_public_ip[ii].count));
+}
+
+/**
+ * Function to print CGNAPT version info
+ *
+ * @param p
+ * An unused pointer to struct pipeline
+ * @param msg
+ * void pointer to incoming arguments
+ */
+void *pipeline_cgnapt_msg_req_ver_handler(__rte_unused struct pipeline *p,
+ void *msg)
+{
+ struct pipeline_cgnapt_entry_delete_msg_rsp *rsp = msg;
+ uint8_t *Msg = msg;
+
+ rsp->status = 0;
+
+ printf("CG-NAPT debug handler called with args %x %x, offset %d\n",
+ Msg[CGNAPT_VER_CMD_OFST], Msg[CGNAPT_VER_CMD_OFST + 1],
+ CGNAPT_VER_CMD_OFST);
+
+ if (Msg[CGNAPT_VER_CMD_OFST] == CGNAPT_VER_CMD_VER) {
+ printf("CGNAPT Version %s\n", CGNAPT_VERSION);
+ return rsp;
+ }
+ printf("CG-NAPT Version handler called with wrong args %x %x\n",
+ Msg[0], Msg[1]);
+ int i = 0;
+
+ for (i = 0; i < 20; i++)
+ printf("%02x ", Msg[i]);
+ printf("\n");
+ return rsp;
+}
+
+/**
+ * Function to show CGNAPT stats
+ *
+ */
+void all_cgnapt_stats(void)
+{
+ int i;
+ struct pipeline_cgnapt *p_nat;
+ uint64_t receivedPktCount = 0;
+ uint64_t missedPktCount = 0;
+ uint64_t naptDroppedPktCount = 0;
+ uint64_t naptedPktCount = 0;
+ uint64_t inaptedPktCount = 0;
+ uint64_t enaptedPktCount = 0;
+ uint64_t arpicmpPktCount = 0;
+
+ printf("\nCG-NAPT Packet Stats:\n");
+ for (i = 0; i < n_cgnapt_pipeline; i++) {
+ p_nat = all_pipeline_cgnapt[i];
+
+ receivedPktCount += p_nat->receivedPktCount;
+ missedPktCount += p_nat->missedPktCount;
+ naptDroppedPktCount += p_nat->naptDroppedPktCount;
+ naptedPktCount += p_nat->naptedPktCount;
+ inaptedPktCount += p_nat->inaptedPktCount;
+ enaptedPktCount += p_nat->enaptedPktCount;
+ arpicmpPktCount += p_nat->arpicmpPktCount;
+
+ printf("pipeline %d stats:\n", p_nat->pipeline_num);
+ printf("Received %" PRIu64 ",", p_nat->receivedPktCount);
+ printf("Missed %" PRIu64 ",", p_nat->missedPktCount);
+ printf("Dropped %" PRIu64 ",", p_nat->naptDroppedPktCount);
+ printf("Translated %" PRIu64 ",", p_nat->naptedPktCount);
+ printf("ingress %" PRIu64 ",", p_nat->inaptedPktCount);
+ printf("egress %" PRIu64 "\n", p_nat->enaptedPktCount);
+ printf("arpicmp pkts %" PRIu64 "\n", p_nat->arpicmpPktCount);
+
+
+ #ifdef CGNAPT_DEBUGGING
+ printf("\n Drop detail 1:%" PRIu64 ",",
+ p_nat->naptDroppedPktCount1);
+ printf("\n Drop detail 2:%" PRIu64 ",",
+ p_nat->naptDroppedPktCount2);
+ printf("\n Drop detail 3:%" PRIu64 ",",
+ p_nat->naptDroppedPktCount3);
+ printf("\n Drop detail 4:%" PRIu64 ",",
+ p_nat->naptDroppedPktCount4);
+ printf("\n Drop detail 5:%" PRIu64 ",",
+ p_nat->naptDroppedPktCount5);
+ printf("\n Drop detail 6:%" PRIu64 "",
+ p_nat->naptDroppedPktCount6);
+
+ printf("\nPkt_miss: %" PRIu64 " %" PRIu64 "",
+ p_nat->missedpktcount1,
+ p_nat->missedpktcount2);
+ printf("\nPkt_miss: %" PRIu64 " %" PRIu64 "",
+ p_nat->missedpktcount3,
+ p_nat->missedpktcount4);
+ printf("\nPkt_miss: %" PRIu64 " %" PRIu64 "",
+ p_nat->missedpktcount5,
+ p_nat->missedpktcount6);
+ printf("\nPkt_miss: %" PRIu64 " %" PRIu64 "",
+ p_nat->missedpktcount7,
+ p_nat->missedpktcount8);
+ printf("\nPkt_miss: %" PRIu64 " %" PRIu64 "",
+ p_nat->missedpktcount9,
+ p_nat->missedpktcount10);
+
+ #endif
+
+ }
+
+ printf("\nTotal pipeline stats:\n");
+ printf("Received %" PRIu64 ",", receivedPktCount);
+ printf("Missed %" PRIu64 ",", missedPktCount);
+ printf("Dropped %" PRIu64 ",", naptDroppedPktCount);
+ printf("Translated %" PRIu64 ",", naptedPktCount);
+ printf("ingress %" PRIu64 ",", inaptedPktCount);
+ printf("egress %" PRIu64 "\n", enaptedPktCount);
+ printf("arpicmp pkts %" PRIu64 "\n", arpicmpPktCount);
+}
+
+void all_cgnapt_clear_stats(void)
+{
+ int i;
+ struct pipeline_cgnapt *p_nat;
+ printf("\nCG-NAPT Packet Stats:\n");
+ for (i = 0; i < n_cgnapt_pipeline; i++) {
+ p_nat = all_pipeline_cgnapt[i];
+
+ printf("pipeline %d stats:\n", p_nat->pipeline_num);
+ printf("Received %" PRIu64 ",", p_nat->receivedPktCount);
+ printf("Missed %" PRIu64 ",", p_nat->missedPktCount);
+ printf("Dropped %" PRIu64 ",", p_nat->naptDroppedPktCount);
+ printf("Translated %" PRIu64 ",", p_nat->naptedPktCount);
+ printf("ingress %" PRIu64 ",", p_nat->inaptedPktCount);
+ printf("egress %" PRIu64 "\n", p_nat->enaptedPktCount);
+ printf("arpicmp pkts %" PRIu64 "\n", p_nat->arpicmpPktCount);
+
+ p_nat->receivedPktCount = 0;
+ p_nat->missedPktCount = 0;
+ p_nat->naptDroppedPktCount = 0;
+ p_nat->naptedPktCount = 0;
+ p_nat->inaptedPktCount = 0;
+ p_nat->enaptedPktCount = 0;
+ p_nat->arpicmpPktCount = 0;
+
+ #ifdef CGNAPT_DEBUGGING
+ printf("\n Drop detail 1:%" PRIu64 ",",
+ p_nat->naptDroppedPktCount1);
+ printf("\n Drop detail 2:%" PRIu64 ",",
+ p_nat->naptDroppedPktCount2);
+ printf("\n Drop detail 3:%" PRIu64 ",",
+ p_nat->naptDroppedPktCount3);
+ printf("\n Drop detail 4:%" PRIu64 ",",
+ p_nat->naptDroppedPktCount4);
+ printf("\n Drop detail 5:%" PRIu64 ",",
+ p_nat->naptDroppedPktCount5);
+ printf("\n Drop detail 6:%" PRIu64 "",
+ p_nat->naptDroppedPktCount6);
+
+ printf("\nPkt_miss: %" PRIu64 " %" PRIu64 "",
+ p_nat->missedpktcount1,
+ p_nat->missedpktcount2);
+ printf("\nPkt_miss: %" PRIu64 " %" PRIu64 "",
+ p_nat->missedpktcount3,
+ p_nat->missedpktcount4);
+ printf("\nPkt_miss: %" PRIu64 " %" PRIu64 "",
+ p_nat->missedpktcount5,
+ p_nat->missedpktcount6);
+ printf("\nPkt_miss: %" PRIu64 " %" PRIu64 "",
+ p_nat->missedpktcount7,
+ p_nat->missedpktcount8);
+ printf("\nPkt_miss: %" PRIu64 " %" PRIu64 "",
+ p_nat->missedpktcount9,
+ p_nat->missedpktcount10);
+
+ #endif
+
+ }
+}
+
+/**
+ * Function to print common CGNAPT table entries
+ *
+ */
+void print_static_cgnapt_entries(void)
+{
+ uint32_t count = 0;
+ const void *key;
+ void *data;
+ uint32_t next = 0;
+ int32_t index = 0;
+ struct cgnapt_table_entry *entry;
+ do {
+ index = rte_hash_iterate(napt_common_table,
+ &key, &data, &next);
+
+ if ((index != -EINVAL) && (index != -ENOENT)) {
+ printf("\n%04d ", count);
+ rte_hexdump(stdout, "KEY", key,
+ sizeof(struct pipeline_cgnapt_entry_key));
+ int32_t position = rte_hash_lookup(
+ napt_common_table, key);
+ entry = &napt_hash_tbl_entries[position];
+
+ if (entry->data.timeout == STATIC_CGNAPT_TIMEOUT)
+ rte_hexdump(stdout, "Entry",
+ (const void *)entry,
+ sizeof(struct cgnapt_table_entry));
+ }
+
+ count++;
+ } while (index != -ENOENT);
+}
+
+/**
+ * Function to show CGNAPT stats
+ *
+ */
+
+struct pipeline_be_ops pipeline_cgnapt_be_ops = {
+ .f_init = pipeline_cgnapt_init,
+ .f_free = pipeline_cgnapt_free,
+ .f_run = NULL,
+ .f_timer = pipeline_cgnapt_timer,
+ .f_track = pipeline_cgnapt_track,
+};
Code Review / samplevnf.git / commitdiff