2 // Copyright (c) 2017 Intel Corporation
4 // Licensed under the Apache License, Version 2.0 (the "License");
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
8 // http://www.apache.org/licenses/LICENSE-2.0
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
19 * Pipeline VFW BE Implementation.
21 * Implementation of Pipeline VFW Back End (BE).
22 * Responsible for packet processing.
36 #include <rte_common.h>
37 #include <rte_malloc.h>
38 #include <rte_ether.h>
39 #include <rte_ethdev.h>
43 #include <rte_byteorder.h>
45 #include <rte_table_lpm.h>
46 #include <rte_table_hash.h>
47 #include <rte_table_array.h>
48 #include <rte_table_acl.h>
49 #include <rte_table_stub.h>
50 #include <rte_timer.h>
51 #include <rte_cycles.h>
52 #include <rte_pipeline.h>
53 #include <rte_spinlock.h>
54 #include <rte_prefetch.h>
55 #include "pipeline_actions_common.h"
56 #include "hash_func.h"
57 #include "pipeline_vfw.h"
58 #include "pipeline_vfw_be.h"
59 #include "rte_cnxn_tracking.h"
60 #include "pipeline_arpicmp_be.h"
61 #include "vnf_common.h"
62 #include "vnf_define.h"
65 #include "lib_icmpv6.h"
66 #include "pipeline_common_fe.h"
70 uint8_t firewall_flag = 1;
72 uint8_t cnxn_tracking_is_active = 1;
74 * A structure defining the VFW pipeline input port per thread data.
76 struct vfw_ports_in_args {
77 struct pipeline *pipe;
78 struct rte_ct_cnxn_tracker *cnxn_tracker;
79 } __rte_cache_aligned;
81 * A structure defining the VFW pipeline per thread data.
85 pipeline_msg_req_handler custom_handlers[PIPELINE_VFW_MSG_REQS];
87 struct rte_ct_cnxn_tracker *cnxn_tracker;
88 struct rte_VFW_counter_block *counters;
89 struct rte_mbuf *pkt_buffer[PKT_BUFFER_SIZE];
90 struct lib_acl *plib_acl;
91 /* timestamp retrieved during in-port computations */
95 uint8_t links_map[PIPELINE_MAX_PORT_IN];
96 uint8_t outport_id[PIPELINE_MAX_PORT_IN];
97 /* Local ARP & ND Tables */
98 struct lib_arp_route_table_entry
99 local_lib_arp_route_table[MAX_ARP_RT_ENTRY];
100 uint8_t local_lib_arp_route_ent_cnt;
101 struct lib_nd_route_table_entry
102 local_lib_nd_route_table[MAX_ND_RT_ENTRY];
103 uint8_t local_lib_nd_route_ent_cnt;
105 } __rte_cache_aligned;
107 * A structure defining the mbuf meta data for VFW.
109 struct mbuf_tcp_meta_data {
110 /* output port stored for RTE_PIPELINE_ACTION_PORT_META */
111 uint32_t output_port;
112 struct rte_mbuf *next; /* next pointer for chained buffers */
113 } __rte_cache_aligned;
115 #define DONT_CARE_TCP_PACKET 0
116 #define IS_NOT_TCP_PACKET 0
117 #define IS_TCP_PACKET 1
119 #define META_DATA_OFFSET 128
121 #define RTE_PKTMBUF_HEADROOM 128 /* where is this defined ? */
122 #define ETHERNET_START (META_DATA_OFFSET + RTE_PKTMBUF_HEADROOM)
123 #define ETH_HDR_SIZE 14
124 #define PROTOCOL_START (IP_START + 9)
126 #define TCP_START (IP_START + 20)
127 #define RTE_LB_PORT_OFFSET 204 /* TODO: Need definition in LB header */
128 #define TCP_START_IPV6 (IP_START + 40)
129 #define PROTOCOL_START_IPV6 (IP_START + 6)
130 #define IP_HDR_DSCP_OFST 1
132 #define TCP_PROTOCOL 6
133 #define UDP_PROTOCOL 17
135 #define DELETE_BUFFERED_PACKETS 0
136 #define FORWARD_BUFFERED_PACKETS 1
140 #define IPv4_HEADER_SIZE 20
141 #define IPv6_HEADER_SIZE 40
143 #define IP_VERSION_4 4
144 #define IP_VERSION_6 6
147 #define IP_HDR_SIZE_IPV6 40
148 #define IP_HDR_DSCP_OFST_IPV6 0
149 #define IP_HDR_LENGTH_OFST_IPV6 4
150 #define IP_HDR_PROTOCOL_OFST_IPV6 6
151 #define IP_HDR_DST_ADR_OFST_IPV6 24
152 #define MAX_NUM_LOCAL_MAC_ADDRESS 16
153 /** The counter table for VFW pipeline per thread data.*/
154 struct rte_VFW_counter_block rte_vfw_counter_table[MAX_VFW_INSTANCES]
156 int rte_VFW_hi_counter_block_in_use = -1;
158 /* a spin lock used during vfw initialization only */
159 rte_spinlock_t rte_VFW_init_lock = RTE_SPINLOCK_INITIALIZER;
162 struct pipeline_action_key *action_array_a;
163 struct pipeline_action_key *action_array_b;
164 struct pipeline_action_key *action_array_active;
165 struct pipeline_action_key *action_array_standby;
166 uint32_t action_array_size;
167 struct action_counter_block
168 action_counter_table[MAX_VFW_INSTANCES][action_array_max]
171 * Pipeline table strategy for firewall. Unfortunately, there does not seem to
172 * be any use for the built-in table lookup of ip_pipeline for the firewall.
173 * The main table requirement of the firewall is the hash table to maintain
174 * connection info, but that is implemented seperately in the connection
175 * tracking library. So a "dummy" table lookup will be performed.
176 * TODO: look into "stub" table and see if that can be used
177 * to avoid useless table lookup
179 /***** ARP local cache *****/
180 uint8_t link_hw_laddr_valid[MAX_NUM_LOCAL_MAC_ADDRESS] = {
181 0, 0, 0, 0, 0, 0, 0, 0,
182 0, 0, 0, 0, 0, 0, 0, 0
185 static struct ether_addr link_hw_laddr[MAX_NUM_LOCAL_MAC_ADDRESS] = {
186 {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
187 {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
188 {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
189 {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
190 {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
191 {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
192 {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
193 {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
194 {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
195 {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
196 {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
197 {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
198 {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
199 {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
200 {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} },
201 {.addr_bytes = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00} }
204 /* Start TSC measurement */
205 /* Prefetch counters and pipe before this function */
206 static inline void start_tsc_measure(struct pipeline_vfw *vfw_pipe) {
207 vfw_pipe->counters->entry_timestamp = rte_get_tsc_cycles();
208 if (likely(vfw_pipe->counters->exit_timestamp))
209 vfw_pipe->counters->external_time_sum +=
210 vfw_pipe->counters->entry_timestamp -
211 vfw_pipe->counters->exit_timestamp;
214 /* End TSC measurement */
215 static inline void end_tsc_measure(
216 struct pipeline_vfw *vfw_pipe,
219 if (likely(n_pkts > 1)) {
220 vfw_pipe->counters->exit_timestamp = rte_get_tsc_cycles();
221 vfw_pipe->counters->internal_time_sum +=
222 vfw_pipe->counters->exit_timestamp -
223 vfw_pipe->counters->entry_timestamp;
224 vfw_pipe->counters->time_measurements++;
226 /* small counts skew results, ignore */
227 vfw_pipe->counters->exit_timestamp = 0;
231 static struct ether_addr *get_local_link_hw_addr(uint8_t out_port)
233 return &link_hw_laddr[out_port];
236 static uint8_t local_dest_mac_present(uint8_t out_port)
238 return link_hw_laddr_valid[out_port];
241 static uint32_t local_get_nh_ipv4(
245 struct pipeline_vfw *vfw_pipe)
249 for (i = 0; i < vfw_pipe->local_lib_arp_route_ent_cnt; i++) {
250 if (((vfw_pipe->local_lib_arp_route_table[i].ip &
251 vfw_pipe->local_lib_arp_route_table[i].mask) ==
252 (ip & vfw_pipe->local_lib_arp_route_table[i].mask))) {
253 *port = vfw_pipe->local_lib_arp_route_table[i].port;
255 *nhip = vfw_pipe->local_lib_arp_route_table[i].nh;
262 static void do_local_nh_ipv4_cache(uint32_t dest_if,
263 struct pipeline_vfw *vfw_pipe)
266 /* Search for the entry and do local copy */
269 for (i = 0; i < MAX_ARP_RT_ENTRY; i++) {
270 if (lib_arp_route_table[i].port == dest_if) {
272 struct lib_arp_route_table_entry *lentry =
274 local_lib_arp_route_table[vfw_pipe->
275 local_lib_arp_route_ent_cnt];
277 lentry->ip = lib_arp_route_table[i].ip;
278 lentry->mask = lib_arp_route_table[i].mask;
279 lentry->port = lib_arp_route_table[i].port;
280 lentry->nh = lib_arp_route_table[i].nh;
282 vfw_pipe->local_lib_arp_route_ent_cnt++;
287 static uint32_t local_get_nh_ipv6(
291 struct pipeline_vfw *vfw_pipe)
293 uint8_t netmask_ipv6[IPV6_ADD_SIZE], netip_nd[IPV6_ADD_SIZE],
294 netip_in[IPV6_ADD_SIZE];
295 uint8_t i = 0, j = 0, k = 0, l = 0, depthflags = 0, depthflags1 = 0;
296 memset(netmask_ipv6, 0, sizeof(netmask_ipv6));
297 memset(netip_nd, 0, sizeof(netip_nd));
298 memset(netip_in, 0, sizeof(netip_in));
300 for (i = 0; i < vfw_pipe->local_lib_nd_route_ent_cnt; i++) {
302 convert_prefixlen_to_netmask_ipv6(
303 vfw_pipe->local_lib_nd_route_table[i].depth,
306 for (k = 0; k < IPV6_ADD_SIZE; k++)
307 if (vfw_pipe->local_lib_nd_route_table[i].ipv6[k] &
310 netip_nd[k] = vfw_pipe->
311 local_lib_nd_route_table[i].ipv6[k];
314 for (l = 0; l < IPV6_ADD_SIZE; l++)
315 if (ip[l] & netmask_ipv6[l]) {
321 if ((depthflags == depthflags1) && (memcmp(netip_nd, netip_in,
322 sizeof(netip_nd)) == 0)) {
324 *port = vfw_pipe->local_lib_nd_route_table[i].port;
326 for (j = 0; j < IPV6_ADD_SIZE; j++)
328 local_lib_nd_route_table[i].nhipv6[j];
338 static void do_local_nh_ipv6_cache(uint32_t dest_if,
339 struct pipeline_vfw *vfw_pipe)
341 /* Search for the entry and do local copy */
344 for (i = 0; i < MAX_ND_RT_ENTRY; i++) {
346 if (lib_nd_route_table[i].port == dest_if) {
348 struct lib_nd_route_table_entry *lentry = &vfw_pipe->
349 local_lib_nd_route_table[vfw_pipe->
350 local_lib_nd_route_ent_cnt];
352 for (l = 0; l < IPV6_ADD_SIZE; l++) {
354 lib_nd_route_table[i].ipv6[l];
356 lib_nd_route_table[i].nhipv6[l];
358 lentry->depth = lib_nd_route_table[i].depth;
359 lentry->port = lib_nd_route_table[i].port;
361 vfw_pipe->local_lib_nd_route_ent_cnt++;
367 * Print packet for debugging.
370 * A pointer to the packet.
373 static __rte_unused void print_pkt(struct rte_mbuf *pkt)
376 int size = (int)sizeof(struct mbuf_tcp_meta_data);
377 uint8_t *rd = RTE_MBUF_METADATA_UINT8_PTR(pkt, META_DATA_OFFSET);
379 printf("Meta-data:\n");
380 for (i = 0; i < size; i++) {
381 printf("%02x ", rd[i]);
382 if ((i & TWO_BYTE_PRINT) == TWO_BYTE_PRINT)
386 printf("IP and TCP/UDP headers:\n");
387 rd = RTE_MBUF_METADATA_UINT8_PTR(pkt, IP_START);
388 for (i = 0; i < IP_HDR_SIZE_IPV6; i++) {
389 printf("%02x ", rd[i]);
390 if ((i & TWO_BYTE_PRINT) == TWO_BYTE_PRINT)
396 /* TODO: are the protocol numbers defined somewhere with meaningful names? */
397 #define IP_ICMP_PROTOCOL 1
398 #define IP_TCP_PROTOCOL 6
399 #define IP_UDP_PROTOCOL 17
400 #define IPv6_FRAGMENT_HEADER 44
403 * Return ethernet header structure form packet.
406 * A pointer to the packet.
409 static inline struct ether_hdr *rte_vfw_get_ether_addr(struct rte_mbuf *pkt)
411 return (struct ether_hdr *)RTE_MBUF_METADATA_UINT32_PTR(pkt,
416 * Return IPV4 header structure form packet.
419 * A pointer to the packet.
423 static inline struct ipv4_hdr *rte_vfw_get_IPv4_hdr_addr(
424 struct rte_mbuf *pkt)
426 return (struct ipv4_hdr *)RTE_MBUF_METADATA_UINT32_PTR(pkt, IP_START);
429 static inline int rte_vfw_is_IPv4(struct rte_mbuf *pkt)
431 /* NOTE: Only supporting IP headers with no options,
432 * so header is fixed size */
433 uint8_t ip_type = RTE_MBUF_METADATA_UINT8(pkt, IP_START)
436 return ip_type == IPv4_HDR_VERSION;
439 static inline int rte_vfw_is_IPv6(struct rte_mbuf *pkt)
441 /* NOTE: Only supporting IP headers with no options,
442 * so header is fixed size */
443 uint8_t ip_type = RTE_MBUF_METADATA_UINT8(pkt, IP_START)
446 return ip_type == IPv6_HDR_VERSION;
449 static inline void rte_vfw_incr_drop_ctr(uint64_t *counter)
451 if (likely(firewall_flag))
455 static uint8_t check_arp_icmp(
456 struct rte_mbuf *pkt,
457 struct pipeline_vfw *vfw_pipe)
459 struct ether_hdr *ehdr;
460 struct app_link_params *link;
461 uint8_t solicited_node_multicast_addr[IPV6_ADD_SIZE] = {
462 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
463 0x00, 0x00, 0x00, 0x01, 0xff, 0x00, 0x00, 0x00};
465 /* ARP outport number */
466 uint16_t out_port = vfw_pipe->pipe.n_ports_out - 1;
467 struct ipv4_hdr *ipv4_h;
468 struct ipv6_hdr *ipv6_h;
469 link = &myApp->link_params[pkt->port];
471 ehdr = rte_vfw_get_ether_addr(pkt);
472 switch (rte_be_to_cpu_16(ehdr->ether_type)) {
475 rte_pipeline_port_out_packet_insert(
480 vfw_pipe->counters->arpicmpPktCount++;
484 ipv4_h = (struct ipv4_hdr *)
485 RTE_MBUF_METADATA_UINT32_PTR(pkt, IP_START);
486 if ((ipv4_h->next_proto_id == IP_PROTOCOL_ICMP) &&
488 rte_be_to_cpu_32(ipv4_h->dst_addr)) {
489 if (is_phy_port_privte(pkt->port)) {
490 rte_pipeline_port_out_packet_insert(
495 vfw_pipe->counters->arpicmpPktCount++;
502 ipv6_h = (struct ipv6_hdr *)
503 RTE_MBUF_METADATA_UINT32_PTR(pkt, IP_START);
505 if (ipv6_h->proto == ICMPV6_PROTOCOL_ID) {
506 if (!memcmp(ipv6_h->dst_addr, link->ipv6, IPV6_ADD_SIZE)
507 || !memcmp(ipv6_h->dst_addr,
508 solicited_node_multicast_addr,
509 IPV6_ADD_CMP_MULTI)) {
511 rte_pipeline_port_out_packet_insert(
516 vfw_pipe->counters->arpicmpPktCount++;
520 pkts_drop_unsupported_type++;
533 * Performs basic VFW ipv4 packet filtering.
535 * A pointer to the packets.
539 * A pointer to VFW pipeline.
543 rte_vfw_ipv4_packet_filter_and_process(struct rte_mbuf **pkts,
545 struct pipeline_vfw *vfw_pipe)
549 * Make use of cache prefetch. At beginning of loop, want to prefetch
550 * mbuf data for next iteration (not current one).
551 * Note that ethernet header (14 bytes) is cache aligned. IPv4 header
552 * is 20 bytes (extensions not supported), while the IPv6 header is 40
553 * bytes. TCP header is 20 bytes, UDP is 8. One cache line prefetch
554 * will cover IPv4 and TCP or UDP, but to get IPv6 and TCP,
555 * need two pre-fetches.
558 uint8_t pos, next_pos = 0;
559 uint64_t pkt_mask; /* bitmask representing a single packet */
560 struct rte_mbuf *pkt;
561 struct rte_mbuf *next_pkt = NULL;
562 struct ipv4_hdr *ihdr4;
563 void *next_iphdr = NULL;
565 if (unlikely(pkts_mask == 0))
567 pos = (uint8_t) __builtin_ctzll(pkts_mask);
568 pkt_mask = 1LLU << pos; /* bitmask representing only this packet */
571 uint64_t bytes_processed = 0;
572 /* bitmap of packets left to process */
573 uint64_t pkts_to_process = pkts_mask;
574 /* bitmap of valid packets to return */
575 uint64_t valid_packets = pkts_mask;
578 /* prefetch counters, updated below. Most likely counters to update
580 rte_prefetch0(&vfw_pipe->counters);
582 do { /* always execute at least once */
584 /* remove this packet from remaining list */
585 uint64_t next_pkts_to_process = pkts_to_process &= ~pkt_mask;
587 if (likely(next_pkts_to_process)) {
588 /* another packet to process after this, prefetch it */
591 (uint8_t) __builtin_ctzll(next_pkts_to_process);
592 next_pkt = pkts[next_pos];
593 next_iphdr = RTE_MBUF_METADATA_UINT32_PTR(next_pkt,
595 rte_prefetch0(next_iphdr);
599 /* remove this packet from remaining list */
600 pkts_to_process &= ~pkt_mask;
603 if (!check_arp_icmp(pkt, vfw_pipe)) {
604 /* make next packet data the current */
605 pkts_to_process = next_pkts_to_process;
609 pkt_mask = 1LLU << pos;
610 valid_packets &= ~pkt_mask;
615 uint32_t packet_length = rte_pktmbuf_pkt_len(pkt);
617 bytes_processed += packet_length;
619 ihdr4 = (struct ipv4_hdr *)
620 RTE_MBUF_METADATA_UINT32_PTR(pkt, IP_START);
622 /* verify that packet size according to mbuf is at least
623 * as large as the size according to the IP header.
626 uint32_t ip_length = rte_bswap16(ihdr4->total_length);
629 (ip_length > (packet_length - ETH_HDR_SIZE))) {
631 vfw_pipe->counters->pkts_drop_bad_size++;
635 * IPv4 fragmented if: MF (more fragments) or Fragment
636 * Offset are non-zero. Header in Intel order, so flip
637 * constant to compensate. Note that IPv6 uses a header
638 * extension for identifying fragments.
641 int fragmented = (ihdr4->fragment_offset & 0xff3f) != 0;
642 uint8_t ttl = ihdr4->time_to_live;
644 if (unlikely(fragmented)) {
646 vfw_pipe->counters->pkts_drop_fragmented++;
649 if (unlikely(ttl <= 1)) {
651 * about to decrement to zero (or is somehow
652 * already zero), so discard
655 vfw_pipe->counters->pkts_drop_ttl++;
659 * Dropping the packets other than TCP AND UDP.
662 uint8_t proto = ihdr4->next_proto_id;
664 if (unlikely(!(proto == IP_TCP_PROTOCOL ||
665 proto == IP_UDP_PROTOCOL ||
666 proto == IP_ICMP_PROTOCOL))) {
669 pkts_drop_unsupported_type++;
672 if (unlikely(discard)) {
673 valid_packets &= ~pkt_mask;
676 /* make next packet data the current */
677 pkts_to_process = next_pkts_to_process;
681 pkt_mask = 1LLU << pos;
683 } while (pkts_to_process);
685 /* finalize counters, etc. */
686 vfw_pipe->counters->bytes_processed += bytes_processed;
688 if (likely(firewall_flag))
689 return valid_packets;
694 * Performs basic VFW IPV6 packet filtering.
696 * A pointer to the packets.
700 * A pointer to VFW pipeline.
703 rte_vfw_ipv6_packet_filter_and_process(struct rte_mbuf **pkts,
705 struct pipeline_vfw *vfw_pipe)
709 * Make use of cache prefetch. At beginning of loop, want to prefetch
710 * mbuf data for next iteration (not current one).
711 * Note that ethernet header (14 bytes) is cache aligned. IPv4 header
712 * is 20 bytes (extensions not supported), while the IPv6 header is 40
713 * bytes. TCP header is 20 bytes, UDP is 8. One cache line prefetch
714 * will cover IPv4 and TCP or UDP, but to get IPv6 and TCP,
715 * need two pre-fetches.
718 uint8_t pos, next_pos = 0;
719 uint64_t pkt_mask; /* bitmask representing a single packet */
720 struct rte_mbuf *pkt;
721 struct rte_mbuf *next_pkt = NULL;
722 struct ipv6_hdr *ihdr6;
723 void *next_iphdr = NULL;
725 if (unlikely(pkts_mask == 0))
727 pos = (uint8_t) __builtin_ctzll(pkts_mask);
728 pkt_mask = 1LLU << pos; /* bitmask representing only this packet */
731 uint64_t bytes_processed = 0;
732 /* bitmap of packets left to process */
733 uint64_t pkts_to_process = pkts_mask;
734 /* bitmap of valid packets to return */
735 uint64_t valid_packets = pkts_mask;
737 /* prefetch counters, updated below. Most likely counters to update
739 rte_prefetch0(&vfw_pipe->counters);
741 do { /* always execute at least once */
743 /* remove this packet from remaining list */
744 uint64_t next_pkts_to_process = pkts_to_process &= ~pkt_mask;
746 if (likely(next_pkts_to_process)) {
747 /* another packet to process after this, prefetch it */
750 (uint8_t) __builtin_ctzll(next_pkts_to_process);
751 next_pkt = pkts[next_pos];
753 RTE_MBUF_METADATA_UINT32_PTR(next_pkt, IP_START);
754 rte_prefetch0(next_iphdr);
758 /* remove this packet from remaining list */
759 pkts_to_process &= ~pkt_mask;
762 if (!check_arp_icmp(pkt, vfw_pipe)) {
763 /* make next packet data the current */
764 pkts_to_process = next_pkts_to_process;
768 pkt_mask = 1LLU << pos;
769 valid_packets &= ~pkt_mask;
774 uint32_t packet_length = rte_pktmbuf_pkt_len(pkt);
776 bytes_processed += packet_length;
778 ihdr6 = (struct ipv6_hdr *)
779 RTE_MBUF_METADATA_UINT32_PTR(pkt, IP_START);
782 * verify that packet size according to mbuf is at least
783 * as large as the size according to the IP header.
784 * For IPv6, note that size includes header extensions
785 * but not the base header size
789 rte_bswap16(ihdr6->payload_len) + IPv6_HEADER_SIZE;
792 (ip_length > (packet_length - ETH_HDR_SIZE))) {
794 vfw_pipe->counters->pkts_drop_bad_size++;
798 * Dropping the packets other than TCP AND UDP.
801 uint8_t proto = ihdr6->proto;
803 if (unlikely(!(proto == IP_TCP_PROTOCOL ||
804 proto == IP_UDP_PROTOCOL ||
805 proto == IP_ICMP_PROTOCOL))) {
807 if (proto == IPv6_FRAGMENT_HEADER)
809 pkts_drop_fragmented++;
812 pkts_drop_unsupported_type++;
816 * Behave like a router, and decrement the TTL of an
817 * IP packet. If this causes the TTL to become zero,
818 * the packet will be discarded. Unlike a router,
819 * no ICMP code 11 (Time * Exceeded) message will be
820 * sent back to the packet originator.
823 if (unlikely(ihdr6->hop_limits <= 1)) {
825 * about to decrement to zero (or is somehow
826 * already zero), so discard
829 vfw_pipe->counters->pkts_drop_ttl++;
832 if (unlikely(discard))
833 valid_packets &= ~pkt_mask;
837 /* make next packet data the current */
838 pkts_to_process = next_pkts_to_process;
842 pkt_mask = 1LLU << pos;
844 } while (pkts_to_process);
846 /* finalize counters, etc. */
847 vfw_pipe->counters->bytes_processed += bytes_processed;
849 if (likely(firewall_flag))
850 return valid_packets;
856 * exchange the mac address so source becomes destination and vice versa.
859 * A pointer to the ethernet header.
862 static inline void rte_sp_exchange_mac_addresses(struct ether_hdr *ehdr)
864 struct ether_addr saved_copy;
866 ether_addr_copy(&ehdr->d_addr, &saved_copy);
867 ether_addr_copy(&ehdr->s_addr, &ehdr->d_addr);
868 ether_addr_copy(&saved_copy, &ehdr->s_addr);
873 * walk every valid mbuf (denoted by pkts_mask) and apply arp to the packet.
874 * To support synproxy, some (altered) packets may need to be sent back where
875 * they came from. The ip header has already been adjusted, but the ethernet
876 * header has not, so this must be performed here.
877 * Return an updated pkts_mask, since arp may drop some packets
880 * A pointer to the packet array.
882 * Packet num to start processing
885 * @param synproxy_reply_mask
886 * Reply Packet mask for Synproxy
888 * A pointer to VFW pipeline.
891 pkt4_work_vfw_arp_ipv4_packets(struct rte_mbuf **pkts,
894 uint64_t synproxy_reply_mask,
895 struct pipeline_vfw *vfw_pipe)
902 struct ether_addr hw_addr;
903 struct mbuf_tcp_meta_data *meta_data_addr;
904 struct ether_hdr *ehdr;
905 struct rte_mbuf *pkt;
908 for (i = 0; i < 4; i++) {
909 uint32_t dest_if = INVALID_DESTIF;
910 /* bitmask representing only this packet */
911 uint64_t pkt_mask = 1LLU << (pkt_num + i);
915 if(!(*pkts_mask & pkt_mask))
918 int must_reverse = ((synproxy_reply_mask & pkt_mask) != 0);
920 phy_port = pkt->port;
921 meta_data_addr = (struct mbuf_tcp_meta_data *)
922 RTE_MBUF_METADATA_UINT32_PTR(pkt, META_DATA_OFFSET);
923 ehdr = rte_vfw_get_ether_addr(pkt);
926 struct ipv4_hdr *ihdr = (struct ipv4_hdr *)
927 RTE_MBUF_METADATA_UINT32_PTR(pkt, IP_START);
930 uint32_t dest_address = rte_bswap32(ihdr->dst_addr);
932 ret = local_get_nh_ipv4(dest_address, &dest_if,
935 rte_sp_exchange_mac_addresses(ehdr);
936 if (is_phy_port_privte(phy_port)) {
938 dest_if = get_pub_to_prv_port(
941 if (dest_if == INVALID_DESTIF) {
942 *pkts_mask &= ~pkt_mask;
944 pkts_drop_without_arp_entry++;
946 do_local_nh_ipv4_cache(
952 dest_if = get_prv_to_pub_port(
955 if (dest_if == INVALID_DESTIF) {
956 *pkts_mask &= ~pkt_mask;
958 pkts_drop_without_arp_entry++;
960 do_local_nh_ipv4_cache(dest_if,
964 } else if (is_phy_port_privte(phy_port)) {
966 dest_if = get_prv_to_pub_port(&dest_address,
968 if (dest_if == INVALID_DESTIF) {
969 *pkts_mask &= ~pkt_mask;
971 pkts_drop_without_arp_entry++;
973 do_local_nh_ipv4_cache(dest_if, vfw_pipe);
978 dest_if = get_pub_to_prv_port(&dest_address,
980 if (dest_if == INVALID_DESTIF) {
981 *pkts_mask &= ~pkt_mask;
983 pkts_drop_without_arp_entry++;
985 do_local_nh_ipv4_cache(dest_if, vfw_pipe);
989 meta_data_addr->output_port = vfw_pipe->outport_id[dest_if];
990 if (local_dest_mac_present(dest_if)) {
991 ether_addr_copy(get_local_link_hw_addr(dest_if),
993 ether_addr_copy(get_link_hw_addr(dest_if),
996 ret_mac = get_dest_mac_addr_port(dest_address,
998 if (ret_mac == ARP_FOUND) {
1000 link_hw_laddr_valid[dest_if] = 1;
1001 memcpy(&link_hw_laddr[dest_if], &hw_addr,
1002 sizeof(struct ether_addr));
1004 ether_addr_copy(&hw_addr, &ehdr->d_addr);
1005 ether_addr_copy(get_link_hw_addr(dest_if),
1008 if (vfw_debug >= DEBUG_LEVEL_4) {
1009 char buf[HW_ADDR_SIZE];
1011 ether_format_addr(buf, sizeof(buf),
1013 printf("MAC found for ip 0x%"
1014 PRIx32", dest_if %d: %s, ",
1017 ether_format_addr(buf, sizeof(buf),
1019 printf("new eth hdr src: %s, ", buf);
1020 ether_format_addr(buf, sizeof(buf),
1022 printf("new eth hdr dst: %s\n", buf);
1027 if (vfw_debug >= DEBUG_LEVEL_4) {
1028 char buf[HW_ADDR_SIZE];
1030 ether_format_addr(buf, sizeof(buf),
1032 printf("MAC NOT FOUND for ip 0x%"
1038 /* ICMP req sent, drop packet by
1039 * changing the mask */
1040 *pkts_mask &= ~pkt_mask;
1042 counters->pkts_drop_without_arp_entry++;
1050 * walk every valid mbuf (denoted by pkts_mask) and apply arp to the packet.
1051 * To support synproxy, some (altered) packets may need to be sent back where
1052 * they came from. The ip header has already been adjusted, but the ethernet
1053 * header has not, so this must be performed here.
1054 * Return an updated pkts_mask, since arp may drop some packets
1057 * A pointer to the packet.
1059 * Packet number to process
1061 * Packet mask pointer
1062 * @param synproxy_reply_mask
1063 * Reply Packet mask for Synproxy
1065 * A pointer to VFW pipeline.
1068 pkt_work_vfw_arp_ipv4_packets(struct rte_mbuf *pkts,
1070 uint64_t *pkts_mask,
1071 uint64_t synproxy_reply_mask,
1072 struct pipeline_vfw *vfw_pipe)
1076 uint32_t dest_if = INVALID_DESTIF;
1079 struct ether_addr hw_addr;
1080 struct mbuf_tcp_meta_data *meta_data_addr;
1081 struct ether_hdr *ehdr;
1082 struct rte_mbuf *pkt;
1084 uint64_t pkt_mask = 1LLU << pkt_num;
1088 if(*pkts_mask & pkt_mask) {
1090 int must_reverse = ((synproxy_reply_mask & pkt_mask) != 0);
1092 phy_port = pkt->port;
1093 meta_data_addr = (struct mbuf_tcp_meta_data *)
1094 RTE_MBUF_METADATA_UINT32_PTR(pkt, META_DATA_OFFSET);
1095 ehdr = rte_vfw_get_ether_addr(pkt);
1098 struct ipv4_hdr *ihdr = (struct ipv4_hdr *)
1099 RTE_MBUF_METADATA_UINT32_PTR(pkt, IP_START);
1102 uint32_t dest_address = rte_bswap32(ihdr->dst_addr);
1104 ret = local_get_nh_ipv4(dest_address, &dest_if,
1107 rte_sp_exchange_mac_addresses(ehdr);
1108 if (is_phy_port_privte(phy_port)) {
1110 dest_if = get_pub_to_prv_port(
1113 if (dest_if == INVALID_DESTIF) {
1114 *pkts_mask &= ~pkt_mask;
1115 vfw_pipe->counters->
1116 pkts_drop_without_arp_entry++;
1118 do_local_nh_ipv4_cache(
1124 dest_if = get_prv_to_pub_port(
1127 if (dest_if == INVALID_DESTIF) {
1128 *pkts_mask &= ~pkt_mask;
1129 vfw_pipe->counters->
1130 pkts_drop_without_arp_entry++;
1132 do_local_nh_ipv4_cache(dest_if,
1136 } else if (is_phy_port_privte(phy_port)) {
1138 dest_if = get_prv_to_pub_port(&dest_address,
1140 if (dest_if == INVALID_DESTIF) {
1141 *pkts_mask &= ~pkt_mask;
1142 vfw_pipe->counters->
1143 pkts_drop_without_arp_entry++;
1145 do_local_nh_ipv4_cache(dest_if, vfw_pipe);
1150 dest_if = get_pub_to_prv_port(&dest_address,
1152 if (dest_if == INVALID_DESTIF) {
1153 *pkts_mask &= ~pkt_mask;
1154 vfw_pipe->counters->
1155 pkts_drop_without_arp_entry++;
1157 do_local_nh_ipv4_cache(dest_if, vfw_pipe);
1161 meta_data_addr->output_port = vfw_pipe->outport_id[dest_if];
1162 if (local_dest_mac_present(dest_if)) {
1163 ether_addr_copy(get_local_link_hw_addr(dest_if),
1165 ether_addr_copy(get_link_hw_addr(dest_if),
1168 ret_mac = get_dest_mac_addr_port(dest_address,
1169 &dest_if, &hw_addr);
1171 link_hw_laddr_valid[dest_if] = 1;
1172 memcpy(&link_hw_laddr[dest_if], &hw_addr,
1173 sizeof(struct ether_addr));
1175 ether_addr_copy(&hw_addr, &ehdr->d_addr);
1176 ether_addr_copy(get_link_hw_addr(dest_if),
1179 if (vfw_debug >= DEBUG_LEVEL_4) {
1180 char buf[HW_ADDR_SIZE];
1182 ether_format_addr(buf, sizeof(buf),
1184 printf("MAC found for ip 0x%"
1185 PRIx32", dest_if %d: %s, ",
1188 ether_format_addr(buf, sizeof(buf),
1190 printf("new eth hdr src: %s, ", buf);
1191 ether_format_addr(buf, sizeof(buf),
1193 printf("new eth hdr dst: %s\n", buf);
1197 if (vfw_debug >= DEBUG_LEVEL_4) {
1198 char buf[HW_ADDR_SIZE];
1200 ether_format_addr(buf, sizeof(buf),
1202 printf("MAC NOT FOUND for ip 0x%"
1208 /* ICMP req sent, drop packet by
1209 * changing the mask */
1210 *pkts_mask &= ~pkt_mask;
1212 counters->pkts_drop_without_arp_entry++;
1221 * walk every valid mbuf (denoted by pkts_mask) and apply arp to the packet.
1222 * To support synproxy, some (altered) packets may need to be sent back where
1223 * they came from. The ip header has already been adjusted, but the ethernet
1224 * header has not, so this must be performed here.
1225 * Return an updated pkts_mask, since arp may drop some packets
1228 * A pointer to the packets array.
1230 * Packet number to start processing.
1232 * Packet mask pointer
1233 * @param synproxy_reply_mask
1234 * Reply Packet mask for Synproxy
1236 * A pointer to VFW pipeline.
1240 pkt4_work_vfw_arp_ipv6_packets(struct rte_mbuf **pkts,
1242 uint64_t *pkts_mask,
1243 uint64_t synproxy_reply_mask,
1244 struct pipeline_vfw *vfw_pipe)
1246 uint8_t nh_ipv6[IPV6_ADD_SIZE];
1248 struct ether_addr hw_addr;
1249 struct mbuf_tcp_meta_data *meta_data_addr;
1250 struct ether_hdr *ehdr;
1251 struct rte_mbuf *pkt;
1255 for (i = 0; i < 4; i++) {
1256 uint32_t dest_if = INVALID_DESTIF;
1257 /* bitmask representing only this packet */
1258 uint64_t pkt_mask = 1LLU << (pkt_num + i);
1262 if(!(*pkts_mask & pkt_mask))
1264 int must_reverse = ((synproxy_reply_mask & pkt_mask) != 0);
1266 phy_port = pkt->port;
1267 meta_data_addr = (struct mbuf_tcp_meta_data *)
1268 RTE_MBUF_METADATA_UINT32_PTR(pkt, META_DATA_OFFSET);
1269 ehdr = rte_vfw_get_ether_addr(pkt);
1271 struct ipv6_hdr *ihdr = (struct ipv6_hdr *)
1272 RTE_MBUF_METADATA_UINT32_PTR(pkt, IP_START);
1274 uint8_t nhip[IPV6_ADD_SIZE];
1275 uint8_t dest_address[IPV6_ADD_SIZE];
1277 memset(nhip, 0, IPV6_ADD_SIZE);
1279 rte_mov16(dest_address, ihdr->dst_addr);
1280 ret = local_get_nh_ipv6(&dest_address[0], &dest_if,
1281 &nhip[0], vfw_pipe);
1283 rte_sp_exchange_mac_addresses(ehdr);
1284 if (is_phy_port_privte(phy_port)) {
1286 dest_if = get_pub_to_prv_port(
1290 if (dest_if == INVALID_DESTIF) {
1291 *pkts_mask &= ~pkt_mask;
1292 vfw_pipe->counters->
1293 pkts_drop_without_arp_entry++;
1295 do_local_nh_ipv6_cache(dest_if,
1301 dest_if = get_prv_to_pub_port(
1305 if (dest_if == INVALID_DESTIF) {
1306 *pkts_mask &= ~pkt_mask;
1307 vfw_pipe->counters->
1308 pkts_drop_without_arp_entry++;
1310 do_local_nh_ipv6_cache(dest_if,
1315 } else if (is_phy_port_privte(phy_port)) {
1317 dest_if = get_prv_to_pub_port((uint32_t *)
1318 &dest_address[0], IP_VERSION_6);
1319 if (dest_if == INVALID_DESTIF) {
1320 *pkts_mask &= ~pkt_mask;
1321 vfw_pipe->counters->
1322 pkts_drop_without_arp_entry++;
1324 do_local_nh_ipv6_cache(dest_if, vfw_pipe);
1329 dest_if = get_pub_to_prv_port((uint32_t *)
1330 &dest_address[0], IP_VERSION_6);
1331 if (dest_if == INVALID_DESTIF) {
1332 *pkts_mask &= ~pkt_mask;
1333 vfw_pipe->counters->
1334 pkts_drop_without_arp_entry++;
1337 do_local_nh_ipv6_cache(dest_if, vfw_pipe);
1342 meta_data_addr->output_port = vfw_pipe->outport_id[dest_if];
1344 memset(nh_ipv6, 0, IPV6_ADD_SIZE);
1345 if (get_dest_mac_address_ipv6_port(
1350 ether_addr_copy(&hw_addr, &ehdr->d_addr);
1351 ether_addr_copy(get_link_hw_addr(dest_if),
1354 if (vfw_debug >= DEBUG_LEVEL_4) {
1355 char buf[HW_ADDR_SIZE];
1357 ether_format_addr(buf, sizeof(buf),
1359 printf("MAC found for dest_if %d: %s, ",
1361 ether_format_addr(buf, sizeof(buf),
1363 printf("new eth hdr src: %s, ", buf);
1364 ether_format_addr(buf, sizeof(buf),
1366 printf("new eth hdr dst: %s\n", buf);
1370 printf("deleting ipv6\n");
1371 *pkts_mask &= ~pkt_mask;
1372 /*Next Neighbor is not yet implemented
1374 vfw_pipe->counters->
1375 pkts_drop_without_arp_entry++;
1383 * walk every valid mbuf (denoted by pkts_mask) and apply arp to the packet.
1384 * To support synproxy, some (altered) packets may need to be sent back where
1385 * they came from. The ip header has already been adjusted, but the ethernet
1386 * header has not, so this must be performed here.
1387 * Return an updated pkts_mask, since arp may drop some packets
1390 * A pointer to the packets.
1392 * Packet number to process.
1394 * Packet mask pointer
1395 * @param synproxy_reply_mask
1396 * Reply Packet mask for Synproxy
1398 * A pointer to VFW pipeline.
1402 pkt_work_vfw_arp_ipv6_packets(struct rte_mbuf *pkts,
1404 uint64_t *pkts_mask,
1405 uint64_t synproxy_reply_mask,
1406 struct pipeline_vfw *vfw_pipe)
1408 uint8_t nh_ipv6[IPV6_ADD_SIZE];
1410 struct ether_addr hw_addr;
1411 struct mbuf_tcp_meta_data *meta_data_addr;
1412 struct ether_hdr *ehdr;
1413 struct rte_mbuf *pkt;
1416 uint32_t dest_if = INVALID_DESTIF;
1417 /* bitmask representing only this packet */
1418 uint64_t pkt_mask = 1LLU << pkt_num;
1422 if(*pkts_mask & pkt_mask) {
1424 int must_reverse = ((synproxy_reply_mask & pkt_mask) != 0);
1426 phy_port = pkt->port;
1427 meta_data_addr = (struct mbuf_tcp_meta_data *)
1428 RTE_MBUF_METADATA_UINT32_PTR(pkt, META_DATA_OFFSET);
1429 ehdr = rte_vfw_get_ether_addr(pkt);
1431 struct ipv6_hdr *ihdr = (struct ipv6_hdr *)
1432 RTE_MBUF_METADATA_UINT32_PTR(pkt, IP_START);
1434 uint8_t nhip[IPV6_ADD_SIZE];
1435 uint8_t dest_address[IPV6_ADD_SIZE];
1437 memset(nhip, 0, IPV6_ADD_SIZE);
1439 rte_mov16(dest_address, ihdr->dst_addr);
1440 ret = local_get_nh_ipv6(&dest_address[0], &dest_if,
1441 &nhip[0], vfw_pipe);
1443 rte_sp_exchange_mac_addresses(ehdr);
1444 if (is_phy_port_privte(phy_port)) {
1446 dest_if = get_pub_to_prv_port(
1450 if (dest_if == INVALID_DESTIF) {
1451 *pkts_mask &= ~pkt_mask;
1452 vfw_pipe->counters->
1453 pkts_drop_without_arp_entry++;
1455 do_local_nh_ipv6_cache(dest_if,
1461 dest_if = get_prv_to_pub_port(
1465 if (dest_if == INVALID_DESTIF) {
1466 *pkts_mask &= ~pkt_mask;
1467 vfw_pipe->counters->
1468 pkts_drop_without_arp_entry++;
1470 do_local_nh_ipv6_cache(dest_if,
1475 } else if (is_phy_port_privte(phy_port)) {
1477 dest_if = get_prv_to_pub_port((uint32_t *)
1478 &dest_address[0], IP_VERSION_6);
1479 if (dest_if == INVALID_DESTIF) {
1480 *pkts_mask &= ~pkt_mask;
1481 vfw_pipe->counters->
1482 pkts_drop_without_arp_entry++;
1484 do_local_nh_ipv6_cache(dest_if, vfw_pipe);
1489 dest_if = get_pub_to_prv_port((uint32_t *)
1490 &dest_address[0], IP_VERSION_6);
1491 if (dest_if == INVALID_DESTIF) {
1492 *pkts_mask &= ~pkt_mask;
1493 vfw_pipe->counters->
1494 pkts_drop_without_arp_entry++;
1497 do_local_nh_ipv6_cache(dest_if, vfw_pipe);
1502 meta_data_addr->output_port = vfw_pipe->outport_id[dest_if];
1504 memset(nh_ipv6, 0, IPV6_ADD_SIZE);
1505 if (get_dest_mac_address_ipv6_port(
1510 ether_addr_copy(&hw_addr, &ehdr->d_addr);
1511 ether_addr_copy(get_link_hw_addr(dest_if),
1514 if (vfw_debug >= DEBUG_LEVEL_4) {
1515 char buf[HW_ADDR_SIZE];
1517 ether_format_addr(buf, sizeof(buf),
1519 printf("MAC found for dest_if %d: %s, ",
1521 ether_format_addr(buf, sizeof(buf),
1523 printf("new eth hdr src: %s, ", buf);
1524 ether_format_addr(buf, sizeof(buf),
1526 printf("new eth hdr dst: %s\n", buf);
1530 printf("deleting ipv6\n");
1531 *pkts_mask &= ~pkt_mask;
1532 /*Next Neighbor is not yet implemented
1534 vfw_pipe->counters->
1535 pkts_drop_without_arp_entry++;
1545 * walk every valid mbuf (denoted by pkts_mask) and apply arp to the packet.
1546 * To support synproxy, some (altered) packets may need to be sent back where
1547 * they came from. The ip header has already been adjusted, but the ethernet
1548 * header has not, so this must be performed here.
1549 * Return an updated pkts_mask, since arp may drop some packets
1552 * A pointer to the packet.
1555 * @param synproxy_reply_mask
1556 * Reply Packet mask for Synproxy
1558 * A pointer to VFW pipeline.
1561 rte_vfw_arp_ipv4_packets(struct rte_mbuf **pkts,
1563 uint64_t synproxy_reply_mask,
1564 struct pipeline_vfw *vfw_pipe)
1566 uint64_t pkts_to_arp = pkts_mask;
1569 uint32_t dest_if = INVALID_DESTIF;
1571 for (; pkts_to_arp;) {
1572 struct ether_addr hw_addr;
1573 struct mbuf_tcp_meta_data *meta_data_addr;
1574 struct ether_hdr *ehdr;
1575 struct rte_mbuf *pkt;
1578 uint8_t pos = (uint8_t) __builtin_ctzll(pkts_to_arp);
1579 /* bitmask representing only this packet */
1580 uint64_t pkt_mask = 1LLU << pos;
1581 /* remove this packet from remaining list */
1582 pkts_to_arp &= ~pkt_mask;
1584 int must_reverse = ((synproxy_reply_mask & pkt_mask) != 0);
1586 phy_port = pkt->port;
1587 meta_data_addr = (struct mbuf_tcp_meta_data *)
1588 RTE_MBUF_METADATA_UINT32_PTR(pkt, META_DATA_OFFSET);
1589 ehdr = rte_vfw_get_ether_addr(pkt);
1592 struct ipv4_hdr *ihdr = (struct ipv4_hdr *)
1593 RTE_MBUF_METADATA_UINT32_PTR(pkt, IP_START);
1596 uint32_t dest_address = rte_bswap32(ihdr->dst_addr);
1598 ret = local_get_nh_ipv4(dest_address, &dest_if,
1601 rte_sp_exchange_mac_addresses(ehdr);
1602 if (is_phy_port_privte(phy_port)) {
1604 dest_if = get_pub_to_prv_port(
1607 if (dest_if == INVALID_DESTIF) {
1608 pkts_mask &= ~pkt_mask;
1609 vfw_pipe->counters->
1610 pkts_drop_without_arp_entry++;
1612 do_local_nh_ipv4_cache(
1618 dest_if = get_prv_to_pub_port(
1621 if (dest_if == INVALID_DESTIF) {
1622 pkts_mask &= ~pkt_mask;
1623 vfw_pipe->counters->
1624 pkts_drop_without_arp_entry++;
1626 do_local_nh_ipv4_cache(dest_if,
1630 } else if (is_phy_port_privte(phy_port)) {
1632 dest_if = get_prv_to_pub_port(&dest_address,
1634 if (dest_if == INVALID_DESTIF) {
1635 pkts_mask &= ~pkt_mask;
1636 vfw_pipe->counters->
1637 pkts_drop_without_arp_entry++;
1639 do_local_nh_ipv4_cache(dest_if, vfw_pipe);
1644 dest_if = get_pub_to_prv_port(&dest_address,
1646 if (dest_if == INVALID_DESTIF) {
1647 pkts_mask &= ~pkt_mask;
1648 vfw_pipe->counters->
1649 pkts_drop_without_arp_entry++;
1651 do_local_nh_ipv4_cache(dest_if, vfw_pipe);
1655 meta_data_addr->output_port = vfw_pipe->outport_id[dest_if];
1656 if (local_dest_mac_present(dest_if)) {
1657 ether_addr_copy(get_local_link_hw_addr(dest_if),
1659 ether_addr_copy(get_link_hw_addr(dest_if),
1662 ret_mac = get_dest_mac_addr_port(dest_address,
1663 &dest_if, &hw_addr);
1665 link_hw_laddr_valid[dest_if] = 1;
1666 memcpy(&link_hw_laddr[dest_if], &hw_addr,
1667 sizeof(struct ether_addr));
1669 ether_addr_copy(&hw_addr, &ehdr->d_addr);
1670 ether_addr_copy(get_link_hw_addr(dest_if),
1673 if (vfw_debug >= DEBUG_LEVEL_4) {
1674 char buf[HW_ADDR_SIZE];
1676 ether_format_addr(buf, sizeof(buf),
1678 printf("MAC found for ip 0x%"
1679 PRIx32", dest_if %d: %s, ",
1682 ether_format_addr(buf, sizeof(buf),
1684 printf("new eth hdr src: %s, ", buf);
1685 ether_format_addr(buf, sizeof(buf),
1687 printf("new eth hdr dst: %s\n", buf);
1691 if (unlikely(ret_mac == 0))
1692 request_arp(meta_data_addr->output_port,
1695 if (vfw_debug >= DEBUG_LEVEL_4) {
1696 char buf[HW_ADDR_SIZE];
1698 ether_format_addr(buf, sizeof(buf),
1700 printf("MAC NOT FOUND for ip 0x%"
1706 /* ICMP req sent, drop packet by
1707 * changing the mask */
1708 pkts_mask &= ~pkt_mask;
1710 counters->pkts_drop_without_arp_entry++;
1719 * walk every valid mbuf (denoted by pkts_mask) and apply arp to the packet.
1720 * To support synproxy, some (altered) packets may need to be sent back where
1721 * they came from. The ip header has already been adjusted, but the ethernet
1722 * header has not, so this must be performed here.
1723 * Return an updated pkts_mask, since arp may drop some packets
1726 * A pointer to the packet.
1729 * @param synproxy_reply_mask
1730 * Reply Packet mask for Synproxy
1732 * A pointer to VFW pipeline.
1736 rte_vfw_arp_ipv6_packets(struct rte_mbuf **pkts,
1738 uint64_t synproxy_reply_mask,
1739 struct pipeline_vfw *vfw_pipe)
1741 uint64_t pkts_to_arp = pkts_mask;
1742 uint8_t nh_ipv6[IPV6_ADD_SIZE];
1744 uint32_t dest_if = INVALID_DESTIF;
1746 for (; pkts_to_arp;) {
1747 struct ether_addr hw_addr;
1748 struct mbuf_tcp_meta_data *meta_data_addr;
1749 struct ether_hdr *ehdr;
1750 struct rte_mbuf *pkt;
1753 uint8_t pos = (uint8_t) __builtin_ctzll(pkts_to_arp);
1754 /* bitmask representing only this packet */
1755 uint64_t pkt_mask = 1LLU << pos;
1756 /* remove this packet from remaining list */
1757 pkts_to_arp &= ~pkt_mask;
1759 int must_reverse = ((synproxy_reply_mask & pkt_mask) != 0);
1761 phy_port = pkt->port;
1762 meta_data_addr = (struct mbuf_tcp_meta_data *)
1763 RTE_MBUF_METADATA_UINT32_PTR(pkt, META_DATA_OFFSET);
1764 ehdr = rte_vfw_get_ether_addr(pkt);
1766 struct ipv6_hdr *ihdr = (struct ipv6_hdr *)
1767 RTE_MBUF_METADATA_UINT32_PTR(pkt, IP_START);
1769 uint8_t nhip[IPV6_ADD_SIZE];
1770 uint8_t dest_address[IPV6_ADD_SIZE];
1772 memset(nhip, 0, IPV6_ADD_SIZE);
1774 rte_mov16(dest_address, ihdr->dst_addr);
1775 ret = local_get_nh_ipv6(&dest_address[0], &dest_if,
1776 &nhip[0], vfw_pipe);
1778 rte_sp_exchange_mac_addresses(ehdr);
1779 if (is_phy_port_privte(phy_port)) {
1781 dest_if = get_pub_to_prv_port(
1785 if (dest_if == INVALID_DESTIF) {
1786 pkts_mask &= ~pkt_mask;
1787 vfw_pipe->counters->
1788 pkts_drop_without_arp_entry++;
1790 do_local_nh_ipv6_cache(dest_if,
1796 dest_if = get_prv_to_pub_port(
1800 if (dest_if == INVALID_DESTIF) {
1801 pkts_mask &= ~pkt_mask;
1802 vfw_pipe->counters->
1803 pkts_drop_without_arp_entry++;
1805 do_local_nh_ipv6_cache(dest_if,
1810 } else if (is_phy_port_privte(phy_port)) {
1812 dest_if = get_prv_to_pub_port((uint32_t *)
1813 &dest_address[0], IP_VERSION_6);
1814 if (dest_if == INVALID_DESTIF) {
1815 pkts_mask &= ~pkt_mask;
1816 vfw_pipe->counters->
1817 pkts_drop_without_arp_entry++;
1819 do_local_nh_ipv6_cache(dest_if, vfw_pipe);
1824 dest_if = get_pub_to_prv_port((uint32_t *)
1825 &dest_address[0], IP_VERSION_6);
1826 if (dest_if == INVALID_DESTIF) {
1827 pkts_mask &= ~pkt_mask;
1828 vfw_pipe->counters->
1829 pkts_drop_without_arp_entry++;
1832 do_local_nh_ipv6_cache(dest_if, vfw_pipe);
1837 meta_data_addr->output_port = vfw_pipe->outport_id[dest_if];
1839 memset(nh_ipv6, 0, IPV6_ADD_SIZE);
1840 if (get_dest_mac_address_ipv6_port(
1845 ether_addr_copy(&hw_addr, &ehdr->d_addr);
1846 ether_addr_copy(get_link_hw_addr(dest_if),
1849 if (vfw_debug >= DEBUG_LEVEL_4) {
1850 char buf[HW_ADDR_SIZE];
1852 ether_format_addr(buf, sizeof(buf),
1854 printf("MAC found for dest_if %d: %s, ",
1856 ether_format_addr(buf, sizeof(buf),
1858 printf("new eth hdr src: %s, ", buf);
1859 ether_format_addr(buf, sizeof(buf),
1861 printf("new eth hdr dst: %s\n", buf);
1865 printf("deleting ipv6\n");
1866 pkts_mask &= ~pkt_mask;
1867 /*Next Neighbor is not yet implemented
1869 vfw_pipe->counters->
1870 pkts_drop_without_arp_entry++;
1881 * Packets processing for connection tracking.
1884 * A pointer to the pipeline.
1886 * A pointer to the connetion tracker .
1888 * A pointer to a burst of packets.
1889 * @param packet_mask_in
1890 * Input packets Mask.
1894 vfw_process_buffered_pkts(__rte_unused struct pipeline_vfw *vfw_pipe,
1895 struct rte_ct_cnxn_tracker *ct,
1896 struct rte_mbuf **pkts, uint64_t packet_mask_in)
1898 uint64_t keep_mask = packet_mask_in;
1899 struct rte_synproxy_helper sp_helper; /* for synproxy */
1902 rte_ct_cnxn_tracker_batch_lookup_with_synproxy(ct, pkts, keep_mask,
1905 if (unlikely(sp_helper.hijack_mask))
1906 printf("buffered hijack pkts severe error\n");
1908 if (unlikely(sp_helper.reply_pkt_mask))
1909 printf("buffered reply pkts severe error\n");
1915 * Free Packets from mbuf.
1918 * A pointer to the connection tracker to increment drop counter.
1921 * Packet to be free.
1924 vfw_pktmbuf_free(struct rte_ct_cnxn_tracker *ct, struct rte_mbuf *pkt)
1926 ct->counters->pkts_drop++;
1927 rte_pktmbuf_free(pkt);
1931 vfw_output_or_delete_buffered_packets(struct rte_ct_cnxn_tracker *ct,
1932 struct rte_pipeline *p,
1933 struct rte_mbuf **pkts,
1934 int num_pkts, uint64_t pkts_mask)
1937 struct mbuf_tcp_meta_data *meta_data_addr;
1938 uint64_t pkt_mask = 1;
1940 /* any clear bits in low-order num_pkts bit of
1941 * pkt_mask must be discarded */
1943 for (i = 0; i < num_pkts; i++) {
1944 struct rte_mbuf *pkt = pkts[i];
1946 if (pkts_mask & pkt_mask) {
1947 printf("vfw_output_or_delete_buffered_packets\n");
1948 meta_data_addr = (struct mbuf_tcp_meta_data *)
1949 RTE_MBUF_METADATA_UINT32_PTR(pkt, META_DATA_OFFSET);
1950 rte_pipeline_port_out_packet_insert(
1951 p, meta_data_addr->output_port, pkt);
1954 vfw_pktmbuf_free(ct, pkt);
1957 pkt_mask = pkt_mask << 1;
1962 *Packet buffered for synproxy.
1965 * A pointer to the pipeline.
1967 * A pointer to the vfw pipeline.
1969 * A pointer to the connection tracker.
1970 * @param forward_pkts
1971 * Packet forwarded by synproxy.
1975 vfw_handle_buffered_packets(struct rte_pipeline *p,
1976 struct pipeline_vfw *vfw_pipe,
1977 struct rte_ct_cnxn_tracker *ct, int forward_pkts)
1979 struct rte_mbuf *pkt_list = rte_ct_get_buffered_synproxy_packets(ct);
1981 if (likely(pkt_list == NULL)) /* only during proxy setup is != NULL */
1985 uint64_t keep_mask = 0;
1986 struct rte_mbuf **pkts = vfw_pipe->pkt_buffer;
1987 struct rte_mbuf *pkt;
1989 while (pkt_list != NULL) {
1990 struct mbuf_tcp_meta_data *meta_data =
1991 (struct mbuf_tcp_meta_data *)
1992 RTE_MBUF_METADATA_UINT32_PTR(pkt_list, META_DATA_OFFSET);
1994 /* detach head of list and advance list */
1996 pkt_list = meta_data->next;
2000 pkts[pkt_count++] = pkt;
2002 if (pkt_count == PKT_BUFFER_SIZE) {
2003 /* need to send out packets */
2004 /* currently 0, set all bits */
2005 keep_mask = ~keep_mask;
2008 vfw_process_buffered_pkts(vfw_pipe,
2011 vfw_output_or_delete_buffered_packets(
2021 vfw_pktmbuf_free(ct, pkt);
2025 if (pkt_count != 0) {
2026 /* need to send out packets */
2027 keep_mask = RTE_LEN2MASK(pkt_count, uint64_t);
2030 vfw_process_buffered_pkts(vfw_pipe, ct, pkts,
2033 vfw_output_or_delete_buffered_packets(ct, p, pkts, pkt_count,
2041 * The pipeline port-in action is used to do all the firewall and
2042 * connection tracking work for IPV4 packets.
2045 * A pointer to the pipeline.
2047 * A pointer to a burst of packets.
2049 * Number of packets to process.
2051 * A pointer to pipeline specific data.
2054 * 0 on success, negative on error.
2058 vfw_port_in_action_ipv4(struct rte_pipeline *p,
2059 struct rte_mbuf **pkts,
2060 __rte_unused uint32_t n_pkts, __rte_unused void *arg)
2062 struct vfw_ports_in_args *port_in_args =
2063 (struct vfw_ports_in_args *)arg;
2064 struct pipeline_vfw *vfw_pipe =
2065 (struct pipeline_vfw *)port_in_args->pipe;
2066 struct rte_ct_cnxn_tracker *ct = port_in_args->cnxn_tracker;
2068 start_tsc_measure(vfw_pipe);
2070 uint64_t packet_mask_in = RTE_LEN2MASK(n_pkts, uint64_t);
2071 uint64_t pkts_drop_mask;
2072 uint64_t hijack_mask = 0;
2073 uint64_t synproxy_reply_mask = 0; /* for synproxy */
2074 uint64_t keep_mask = packet_mask_in;
2076 uint64_t conntrack_mask = 0, connexist_mask = 0;
2077 struct rte_CT_helper ct_helper;
2081 * This routine uses a bit mask to represent which packets in the
2082 * "pkts" table are considered valid. Any table entry which exists
2083 * and is considered valid has the corresponding bit in the mask set.
2084 * Otherwise, it is cleared. Note that the mask is 64 bits,
2085 * but the number of packets in the table may be considerably less.
2086 * Any mask bits which do correspond to actual packets are cleared.
2087 * Various routines are called which may determine that an existing
2088 * packet is somehow invalid. The routine will return an altered bit
2089 * mask, with the bit cleared. At the end of all the checks,
2090 * packets are dropped if their mask bit is a zero
2093 rte_prefetch0(& vfw_pipe->counters);
2096 /* Pre-fetch all rte_mbuf header */
2097 for(j = 0; j < n_pkts; j++)
2098 rte_prefetch0(pkts[j]);
2100 memset(&ct_helper, 0, sizeof(struct rte_CT_helper));
2102 rte_prefetch0(& vfw_pipe->counters->pkts_drop_ttl);
2103 rte_prefetch0(& vfw_pipe->counters->sum_latencies);
2106 if (unlikely(vfw_debug > 1))
2107 printf("Enter in-port action IPV4 with %p packet mask\n",
2108 (void *)packet_mask_in);
2109 vfw_pipe->counters->pkts_received =
2110 vfw_pipe->counters->pkts_received + n_pkts;
2112 if (unlikely(VFW_DEBUG))
2113 printf("vfw_port_in_action_ipv4 pkts_received: %" PRIu64
2115 vfw_pipe->counters->pkts_received, n_pkts);
2117 /* first handle handle any previously buffered packets now released */
2118 vfw_handle_buffered_packets(p, vfw_pipe, ct,
2119 FORWARD_BUFFERED_PACKETS);
2121 /* now handle any new packets on input ports */
2122 if (likely(firewall_flag)) {
2123 keep_mask = rte_vfw_ipv4_packet_filter_and_process(pkts,
2124 keep_mask, vfw_pipe);
2125 vfw_pipe->counters->pkts_fw_forwarded +=
2126 __builtin_popcountll(keep_mask);
2130 rte_prefetch0((void*)vfw_pipe->plib_acl);
2131 rte_prefetch0((void*)vfw_rule_table_ipv4_active);
2132 #endif /* EN_SWP_ACL */
2133 keep_mask = lib_acl_ipv4_pkt_work_key(
2134 vfw_pipe->plib_acl, pkts, keep_mask,
2135 &vfw_pipe->counters->pkts_drop_without_rule,
2136 vfw_rule_table_ipv4_active,
2137 action_array_active,
2138 action_counter_table,
2139 &conntrack_mask, &connexist_mask);
2140 vfw_pipe->counters->pkts_acl_forwarded +=
2141 __builtin_popcountll(keep_mask);
2142 if (conntrack_mask > 0) {
2143 keep_mask = conntrack_mask;
2144 ct_helper.no_new_cnxn_mask = connexist_mask;
2145 cnxn_tracking_is_active = 1;
2147 cnxn_tracking_is_active = 0;
2148 #endif /* ACL_ENABLE */
2150 if (likely(cnxn_tracking_is_active)) {
2151 rte_ct_cnxn_tracker_batch_lookup_type(ct, pkts,
2152 &keep_mask, &ct_helper, IPv4_HEADER_SIZE);
2153 synproxy_reply_mask = ct_helper.reply_pkt_mask;
2154 hijack_mask = ct_helper.hijack_mask;
2159 for(j = 0; j < (n_pkts & 0x3LLU); j++) {
2160 rte_prefetch0(RTE_MBUF_METADATA_UINT32_PTR(pkts[j],
2162 rte_prefetch0(RTE_MBUF_METADATA_UINT32_PTR(pkts[j],
2165 rte_prefetch0((void*)in_port_dir_a);
2166 rte_prefetch0((void*)prv_to_pub_map);
2169 for (i = 0; i < (n_pkts & (~0x3LLU)); i += 4) {
2170 for (j = i+4; ((j < n_pkts) && (j < i+8)); j++) {
2171 rte_prefetch0(RTE_MBUF_METADATA_UINT32_PTR(pkts[j],
2173 rte_prefetch0(RTE_MBUF_METADATA_UINT32_PTR(pkts[j],
2176 pkt4_work_vfw_arp_ipv4_packets(&pkts[i], i, &keep_mask,
2177 synproxy_reply_mask, vfw_pipe);
2179 for (j = i; j < n_pkts; j++) {
2180 rte_prefetch0(RTE_MBUF_METADATA_UINT32_PTR(pkts[j],
2182 rte_prefetch0(RTE_MBUF_METADATA_UINT32_PTR(pkts[j],
2185 for (; i < n_pkts; i++) {
2186 pkt_work_vfw_arp_ipv4_packets(pkts[i], i, &keep_mask,
2187 synproxy_reply_mask, vfw_pipe);
2190 rte_prefetch0((void*)in_port_dir_a);
2191 rte_prefetch0((void*)prv_to_pub_map);
2192 rte_prefetch0((void*) & vfw_pipe->local_lib_arp_route_table);
2193 keep_mask = rte_vfw_arp_ipv4_packets(pkts, keep_mask,
2194 synproxy_reply_mask, vfw_pipe);
2197 if (vfw_debug > 1) {
2198 printf(" Exit in-port action with %p packet mask\n",
2200 if (keep_mask != packet_mask_in)
2201 printf("dropped packets, %p in, %p out\n",
2202 (void *)packet_mask_in,
2206 /* Update mask before returning, so that bad packets are dropped */
2208 pkts_drop_mask = packet_mask_in & ~keep_mask;
2210 if (unlikely(pkts_drop_mask != 0)) {
2211 /* printf("drop %p\n", (void *) pkts_drop_mask); */
2212 rte_pipeline_ah_packet_drop(p, pkts_drop_mask);
2215 if (unlikely(hijack_mask != 0))
2216 rte_pipeline_ah_packet_hijack(p, hijack_mask);
2218 vfw_pipe->counters->num_batch_pkts_sum += n_pkts;
2219 vfw_pipe->counters->num_pkts_measurements++;
2221 end_tsc_measure(vfw_pipe, n_pkts);
2226 * The pipeline port-in action is used to do all the firewall and
2227 * connection tracking work for IPV6 packet.
2230 * A pointer to the pipeline.
2232 * A pointer to a burst of packets.
2234 * Number of packets to process.
2236 * A pointer to pipeline specific data.
2239 * 0 on success, negative on error.
2243 vfw_port_in_action_ipv6(struct rte_pipeline *p,
2244 struct rte_mbuf **pkts,
2245 __rte_unused uint32_t n_pkts, __rte_unused void *arg)
2247 struct vfw_ports_in_args *port_in_args =
2248 (struct vfw_ports_in_args *)arg;
2249 struct pipeline_vfw *vfw_pipe =
2250 (struct pipeline_vfw *)port_in_args->pipe;
2251 struct rte_ct_cnxn_tracker *ct = port_in_args->cnxn_tracker;
2253 start_tsc_measure(vfw_pipe);
2255 uint64_t packet_mask_in = RTE_LEN2MASK(n_pkts, uint64_t);
2256 uint64_t pkts_drop_mask;
2257 uint64_t hijack_mask = 0;
2258 uint64_t synproxy_reply_mask = 0; /* for synproxy */
2259 uint64_t keep_mask = packet_mask_in;
2261 uint64_t conntrack_mask = 0, connexist_mask = 0;
2262 struct rte_CT_helper ct_helper;
2266 * This routine uses a bit mask to represent which packets in the
2267 * "pkts" table are considered valid. Any table entry which exists
2268 * and is considered valid has the corresponding bit in the mask set.
2269 * Otherwise, it is cleared. Note that the mask is 64 bits,
2270 * but the number of packets in the table may be considerably less.
2271 * Any mask bits which do correspond to actual packets are cleared.
2272 * Various routines are called which may determine that an existing
2273 * packet is somehow invalid. The routine will return an altered bit
2274 * mask, with the bit cleared. At the end of all the checks,
2275 * packets are dropped if their mask bit is a zero
2278 rte_prefetch0(& vfw_pipe->counters);
2280 /* Pre-fetch all rte_mbuf header */
2281 for(j = 0; j < n_pkts; j++)
2282 rte_prefetch0(pkts[j]);
2284 memset(&ct_helper, 0, sizeof(struct rte_CT_helper));
2285 rte_prefetch0(& vfw_pipe->counters->pkts_drop_ttl);
2286 rte_prefetch0(& vfw_pipe->counters->sum_latencies);
2289 printf("Enter in-port action with %p packet mask\n",
2290 (void *)packet_mask_in);
2291 vfw_pipe->counters->pkts_received =
2292 vfw_pipe->counters->pkts_received + n_pkts;
2294 printf("vfw_port_in_action pkts_received: %" PRIu64
2296 vfw_pipe->counters->pkts_received, n_pkts);
2298 /* first handle handle any previously buffered packets now released */
2299 vfw_handle_buffered_packets(p, vfw_pipe, ct,
2300 FORWARD_BUFFERED_PACKETS);
2302 /* now handle any new packets on input ports */
2303 if (likely(firewall_flag)) {
2304 keep_mask = rte_vfw_ipv6_packet_filter_and_process(pkts,
2305 keep_mask, vfw_pipe);
2306 vfw_pipe->counters->pkts_fw_forwarded +=
2307 __builtin_popcountll(keep_mask);
2312 rte_prefetch0((void*)vfw_pipe->plib_acl);
2313 rte_prefetch0((void*)vfw_rule_table_ipv6_active);
2314 #endif /* EN_SWP_ACL */
2315 keep_mask = lib_acl_ipv6_pkt_work_key(
2316 vfw_pipe->plib_acl, pkts, keep_mask,
2317 &vfw_pipe->counters->pkts_drop_without_rule,
2318 vfw_rule_table_ipv6_active,
2319 action_array_active,
2320 action_counter_table,
2321 &conntrack_mask, &connexist_mask);
2322 vfw_pipe->counters->pkts_acl_forwarded +=
2323 __builtin_popcountll(keep_mask);
2324 if (conntrack_mask > 0) {
2325 keep_mask = conntrack_mask;
2326 ct_helper.no_new_cnxn_mask = connexist_mask;
2327 cnxn_tracking_is_active = 1;
2329 cnxn_tracking_is_active = 0;
2330 #endif /* ACL_ENABLE */
2331 if (likely(cnxn_tracking_is_active)) {
2332 rte_ct_cnxn_tracker_batch_lookup_type(ct, pkts,
2333 &keep_mask, &ct_helper, IPv6_HEADER_SIZE);
2334 synproxy_reply_mask = ct_helper.reply_pkt_mask;
2335 hijack_mask = ct_helper.hijack_mask;
2340 for(j = 0; j < (n_pkts & 0x3LLU); j++) {
2341 rte_prefetch0(RTE_MBUF_METADATA_UINT32_PTR(pkts[j],
2343 rte_prefetch0(RTE_MBUF_METADATA_UINT32_PTR(pkts[j],
2346 rte_prefetch0((void*)in_port_dir_a);
2347 rte_prefetch0(vfw_pipe->local_lib_nd_route_table);
2350 for (i = 0; i < (n_pkts & (~0x3LLU)); i += 4) {
2351 for (j = i+4; ((j < n_pkts) && (j < i+8)); j++) {
2352 rte_prefetch0(RTE_MBUF_METADATA_UINT32_PTR(pkts[j],
2354 rte_prefetch0(RTE_MBUF_METADATA_UINT32_PTR(pkts[j],
2357 pkt4_work_vfw_arp_ipv6_packets(&pkts[i], i, &keep_mask,
2358 synproxy_reply_mask, vfw_pipe);
2360 for (j = i; j < n_pkts; j++) {
2361 rte_prefetch0(RTE_MBUF_METADATA_UINT32_PTR(pkts[j],
2363 rte_prefetch0(RTE_MBUF_METADATA_UINT32_PTR(pkts[j],
2366 for (; i < n_pkts; i++) {
2367 pkt_work_vfw_arp_ipv6_packets(pkts[i], i, &keep_mask,
2368 synproxy_reply_mask, vfw_pipe);
2371 rte_prefetch0((void*)in_port_dir_a);
2372 rte_prefetch0((void*) & vfw_pipe->local_lib_arp_route_table);
2373 keep_mask = rte_vfw_arp_ipv6_packets(pkts, keep_mask,
2374 synproxy_reply_mask, vfw_pipe);
2377 if (vfw_debug > 1) {
2378 printf(" Exit in-port action with %p packet mask\n",
2380 if (keep_mask != packet_mask_in)
2381 printf("dropped packets, %p in, %p out\n",
2382 (void *)packet_mask_in,
2386 /* Update mask before returning, so that bad packets are dropped */
2388 pkts_drop_mask = packet_mask_in & ~keep_mask;
2390 if (unlikely(pkts_drop_mask != 0)) {
2391 /* printf("drop %p\n", (void *) pkts_drop_mask); */
2392 rte_pipeline_ah_packet_drop(p, pkts_drop_mask);
2395 if (unlikely(hijack_mask != 0))
2396 rte_pipeline_ah_packet_hijack(p, hijack_mask);
2398 vfw_pipe->counters->num_batch_pkts_sum += n_pkts;
2399 vfw_pipe->counters->num_pkts_measurements++;
2401 end_tsc_measure(vfw_pipe, n_pkts);
2408 * Parse arguments in config file.
2411 * A pointer to the pipeline.
2413 * A pointer to pipeline specific parameters.
2416 * 0 on success, negative on error.
2419 pipeline_vfw_parse_args(struct pipeline_vfw *vfw_pipe,
2420 struct pipeline_params *params)
2426 printf("VFW pipeline_vfw_parse_args params->n_args: %d\n",
2429 for (i = 0; i < params->n_args; i++) {
2430 char *arg_name = params->args_name[i];
2431 char *arg_value = params->args_value[i];
2433 printf("VFW args[%d]: %s %d, %s\n", i, arg_name,
2434 atoi(arg_value), arg_value);
2436 status = lib_acl_parse_config(vfw_pipe->plib_acl,
2437 arg_name, arg_value, &vfw_n_rules);
2439 printf("rte_ct_set_configuration_options =%s,%s",
2440 arg_name, arg_value);
2442 } else if (status == 0)
2445 #endif /* traffic_type */
2446 if (strcmp(arg_name, "traffic_type") == 0) {
2447 int traffic_type = atoi(arg_value);
2449 if (traffic_type == 0 ||
2450 !(traffic_type == IP_VERSION_4 ||
2451 traffic_type == IP_VERSION_6)) {
2452 printf("not IPV4/IPV6");
2456 vfw_pipe->traffic_type = traffic_type;
2462 if (strcmp(arg_name, "n_flows") == 0) {
2463 int n_flows = atoi(arg_value);
2468 /* must be power of 2, round up if not */
2469 if (!rte_is_power_of_2(n_flows))
2470 n_flows = rte_align32pow2(n_flows);
2472 vfw_pipe->n_flows = n_flows;
2476 /* not firewall option, process as cnxn tracking option */
2477 status = rte_ct_set_configuration_options(
2478 vfw_pipe->cnxn_tracker,
2479 arg_name, arg_value);
2481 printf("rte_ct_set_configuration_options =%s,%s",
2482 arg_name, arg_value);
2484 } else if (status == 0)
2492 static void *pipeline_vfw_msg_req_custom_handler(struct pipeline *p,
2495 static pipeline_msg_req_handler handlers[] = {
2496 [PIPELINE_MSG_REQ_PING] = pipeline_msg_req_ping_handler,
2497 [PIPELINE_MSG_REQ_STATS_PORT_IN] =
2498 pipeline_msg_req_stats_port_in_handler,
2499 [PIPELINE_MSG_REQ_STATS_PORT_OUT] =
2500 pipeline_msg_req_stats_port_out_handler,
2501 [PIPELINE_MSG_REQ_STATS_TABLE] = pipeline_msg_req_stats_table_handler,
2502 [PIPELINE_MSG_REQ_PORT_IN_ENABLE] =
2503 pipeline_msg_req_port_in_enable_handler,
2504 [PIPELINE_MSG_REQ_PORT_IN_DISABLE] =
2505 pipeline_msg_req_port_in_disable_handler,
2506 [PIPELINE_MSG_REQ_CUSTOM] = pipeline_vfw_msg_req_custom_handler,
2509 static void *pipeline_vfw_msg_req_synproxy_flag_handler(struct pipeline *p,
2511 static pipeline_msg_req_handler custom_handlers[] = {
2513 [PIPELINE_VFW_MSG_REQ_SYNPROXY_FLAGS] =
2514 pipeline_vfw_msg_req_synproxy_flag_handler
2518 * Create and initialize Pipeline Back End (BE).
2521 * A pointer to the pipeline specific parameters..
2523 * A pointer to pipeline specific data.
2526 * A pointer to the pipeline create, NULL on error.
2529 *pipeline_vfw_init(struct pipeline_params *params, __rte_unused void *arg)
2533 /* Check input arguments */
2534 if ((params == NULL) ||
2535 (params->n_ports_in == 0) || (params->n_ports_out == 0))
2539 printf("num ports in %d / num ports out %d\n",
2540 params->n_ports_in, params->n_ports_out);
2542 /* Create a single pipeline instance and initialize. */
2543 struct pipeline_vfw *pipe_vfw;
2545 size = RTE_CACHE_LINE_ROUNDUP(sizeof(struct pipeline_vfw));
2546 pipe_vfw = rte_zmalloc(NULL, size, RTE_CACHE_LINE_SIZE);
2548 if (pipe_vfw == NULL)
2551 struct pipeline *pipe;
2553 pipe = &pipe_vfw->pipe;
2555 strncpy(pipe->name, params->name, sizeof(pipe->name));
2556 pipe->log_level = params->log_level;
2557 pipe_vfw->n_flows = 4096; /* small default value */
2558 pipe_vfw->traffic_type = MIX;
2559 pipe_vfw->pipeline_num = 0xff;
2560 for (i = 0; i < PIPELINE_MAX_PORT_IN; i++) {
2561 pipe_vfw->links_map[i] = 0xff;
2562 pipe_vfw->outport_id[i] = 0xff;
2564 PLOG(pipe, HIGH, "VFW");
2566 /* Create a firewall instance and initialize. */
2567 pipe_vfw->cnxn_tracker =
2568 rte_zmalloc(NULL, rte_ct_get_cnxn_tracker_size(),
2569 RTE_CACHE_LINE_SIZE);
2571 if (pipe_vfw->cnxn_tracker == NULL)
2574 /* Create a acl instance and initialize. */
2575 pipe_vfw->plib_acl =
2576 rte_zmalloc(NULL, sizeof(struct lib_acl),
2577 RTE_CACHE_LINE_SIZE);
2579 if (pipe_vfw->plib_acl == NULL)
2582 timer_lcore = rte_lcore_id();
2584 * Now allocate a counter block entry. It appears that the
2585 * initialization of all instances is serialized on core 0,
2586 * so no lock is necessary.
2588 struct rte_VFW_counter_block *counter_ptr;
2590 if (rte_VFW_hi_counter_block_in_use == MAX_VFW_INSTANCES)
2591 /* error, exceeded table bounds */
2594 rte_VFW_hi_counter_block_in_use++;
2596 &rte_vfw_counter_table[rte_VFW_hi_counter_block_in_use];
2597 strncpy(counter_ptr->name, params->name, sizeof(counter_ptr->name));
2599 pipe_vfw->counters = counter_ptr;
2601 rte_ct_initialize_default_timeouts(pipe_vfw->cnxn_tracker);
2602 /* Parse arguments */
2603 if (pipeline_vfw_parse_args(pipe_vfw, params))
2606 uint16_t pointers_offset =
2607 META_DATA_OFFSET + offsetof(struct mbuf_tcp_meta_data, next);
2609 if (pipe_vfw->n_flows > 0)
2610 rte_ct_initialize_cnxn_tracker_with_synproxy(
2611 pipe_vfw->cnxn_tracker,
2616 pipe_vfw->counters->ct_counters =
2617 rte_ct_get_counter_address(pipe_vfw->cnxn_tracker);
2621 struct rte_pipeline_params pipeline_params = {
2622 .name = params->name,
2623 .socket_id = params->socket_id,
2624 .offset_port_id = META_DATA_OFFSET +
2625 offsetof(struct mbuf_tcp_meta_data, output_port)
2628 pipe->p = rte_pipeline_create(&pipeline_params);
2629 if (pipe->p == NULL) {
2638 * create a different "arg_ah" for each input port.
2639 * They differ only in the recorded port number. Unfortunately,
2640 * IP_PIPELINE does not pass port number in to input port handler
2643 uint32_t in_ports_arg_size =
2644 RTE_CACHE_LINE_ROUNDUP((sizeof(struct vfw_ports_in_args)) *
2645 (params->n_ports_in));
2646 struct vfw_ports_in_args *port_in_args =
2647 (struct vfw_ports_in_args *)
2648 rte_zmalloc(NULL, in_ports_arg_size, RTE_CACHE_LINE_SIZE);
2650 if (port_in_args == NULL)
2653 pipe->n_ports_in = params->n_ports_in;
2654 for (i = 0; i < pipe->n_ports_in; i++) {
2656 /* initialize this instance of port_in_args as necessary */
2657 port_in_args[i].pipe = pipe;
2658 port_in_args[i].cnxn_tracker = pipe_vfw->cnxn_tracker;
2660 struct rte_pipeline_port_in_params port_params = {
2662 pipeline_port_in_params_get_ops(¶ms->port_in
2665 pipeline_port_in_params_convert(¶ms->port_in
2667 .f_action = vfw_port_in_action_ipv4,
2668 .arg_ah = &(port_in_args[i]),
2669 .burst_size = params->port_in[i].burst_size,
2671 if (pipe_vfw->traffic_type == IP_VERSION_6)
2672 port_params.f_action = vfw_port_in_action_ipv6;
2673 int status = rte_pipeline_port_in_create(pipe->p, &port_params,
2674 &pipe->port_in_id[i]);
2677 rte_pipeline_free(pipe->p);
2684 pipe->n_ports_out = params->n_ports_out;
2685 for (i = 0; i < pipe->n_ports_out; i++) {
2686 struct rte_pipeline_port_out_params port_params = {
2687 .ops = pipeline_port_out_params_get_ops(
2688 ¶ms->port_out[i]),
2689 .arg_create = pipeline_port_out_params_convert(
2690 ¶ms->port_out[i]),
2695 int status = rte_pipeline_port_out_create(pipe->p, &port_params,
2696 &pipe->port_out_id[i]);
2699 rte_pipeline_free(pipe->p);
2705 int pipeline_num = 0;
2706 int dont_care = sscanf(params->name, "PIPELINE%d", &pipeline_num);
2709 printf("sscanf unble to read pipeline id\n");
2710 pipe_vfw->pipeline_num = (uint8_t) pipeline_num;
2711 register_pipeline_Qs(pipe_vfw->pipeline_num, pipe);
2712 set_link_map(pipe_vfw->pipeline_num, pipe, pipe_vfw->links_map);
2713 set_outport_id(pipe_vfw->pipeline_num, pipe,
2714 pipe_vfw->outport_id);
2715 printf("pipeline_num=%d\n", pipeline_num);
2717 /*If this is the first VFW thread, create common VFW Rule tables*/
2718 if (rte_VFW_hi_counter_block_in_use == 0) {
2719 vfw_rule_table_ipv4_active =
2720 lib_acl_create_active_standby_table_ipv4(1,
2722 if (vfw_rule_table_ipv4_active == NULL) {
2723 printf("Failed to create active table for IPV4\n");
2724 rte_pipeline_free(pipe->p);
2725 rte_free(pipe_vfw->cnxn_tracker);
2726 rte_free(pipe_vfw->plib_acl);
2730 vfw_rule_table_ipv4_standby =
2731 lib_acl_create_active_standby_table_ipv4(2,
2733 if (vfw_rule_table_ipv4_standby == NULL) {
2734 printf("Failed to create standby table for IPV4\n");
2735 rte_pipeline_free(pipe->p);
2736 rte_free(pipe_vfw->cnxn_tracker);
2737 rte_free(pipe_vfw->plib_acl);
2742 vfw_rule_table_ipv6_active =
2743 lib_acl_create_active_standby_table_ipv6(1,
2746 if (vfw_rule_table_ipv6_active == NULL) {
2747 printf("Failed to create active table for IPV6\n");
2748 rte_pipeline_free(pipe->p);
2749 rte_free(pipe_vfw->cnxn_tracker);
2750 rte_free(pipe_vfw->plib_acl);
2754 vfw_rule_table_ipv6_standby =
2755 lib_acl_create_active_standby_table_ipv6(2,
2757 if (vfw_rule_table_ipv6_standby == NULL) {
2758 printf("Failed to create standby table for IPV6\n");
2759 rte_pipeline_free(pipe->p);
2760 rte_free(pipe_vfw->cnxn_tracker);
2761 rte_free(pipe_vfw->plib_acl);
2773 struct rte_pipeline_table_params table_params = {
2774 .ops = &rte_table_stub_ops,
2776 .f_action_hit = NULL,
2777 .f_action_miss = NULL,
2779 .action_data_size = 0,
2782 int status = rte_pipeline_table_create(pipe->p,
2784 &pipe->table_id[0]);
2787 rte_pipeline_free(pipe->p);
2792 struct rte_pipeline_table_entry default_entry = {
2793 .action = RTE_PIPELINE_ACTION_PORT_META
2796 struct rte_pipeline_table_entry *default_entry_ptr;
2798 status = rte_pipeline_table_default_entry_add(pipe->p,
2801 &default_entry_ptr);
2804 rte_pipeline_free(pipe->p);
2808 for (i = 0; i < pipe->n_ports_in; i++) {
2809 int status = rte_pipeline_port_in_connect_to_table(
2811 pipe->port_in_id[i],
2815 rte_pipeline_free(pipe->p);
2821 /* Enable input ports */
2822 for (i = 0; i < pipe->n_ports_in; i++) {
2824 rte_pipeline_port_in_enable(pipe->p, pipe->port_in_id[i]);
2827 rte_pipeline_free(pipe->p);
2833 /* Check pipeline consistency */
2834 if (rte_pipeline_check(pipe->p) < 0) {
2835 rte_pipeline_free(pipe->p);
2840 /* Message queues */
2841 pipe->n_msgq = params->n_msgq;
2842 for (i = 0; i < pipe->n_msgq; i++)
2843 pipe->msgq_in[i] = params->msgq_in[i];
2845 for (i = 0; i < pipe->n_msgq; i++)
2846 pipe->msgq_out[i] = params->msgq_out[i];
2848 /* Message handlers */
2849 memcpy(pipe->handlers, handlers, sizeof(pipe->handlers));
2850 memcpy(pipe_vfw->custom_handlers, custom_handlers,
2851 sizeof(pipe_vfw->custom_handlers));
2857 * Free resources and delete pipeline.
2860 * A pointer to the pipeline.
2863 * 0 on success, negative on error.
2865 static int pipeline_vfw_free(void *pipeline)
2867 struct pipeline *p = (struct pipeline *)pipeline;
2869 /* Check input arguments */
2873 /* Free resources */
2874 rte_pipeline_free(p->p);
2880 * Callback function to map input/output ports.
2883 * A pointer to the pipeline.
2887 * A pointer to the Output port.
2890 * 0 on success, negative on error.
2893 pipeline_vfw_track(void *pipeline, __rte_unused uint32_t port_in,
2896 struct pipeline *p = (struct pipeline *)pipeline;
2898 /* Check input arguments */
2899 if ((p == NULL) || (port_in >= p->n_ports_in) || (port_out == NULL))
2902 if (p->n_ports_in == 1) {
2911 * Callback function to process timers.
2914 * A pointer to the pipeline.
2917 * 0 on success, negative on error.
2919 static int pipeline_vfw_timer(void *pipeline)
2921 struct pipeline_vfw *p = (struct pipeline_vfw *)pipeline;
2924 * handle any good buffered packets released by synproxy before checking
2925 * for packets relased by synproxy due to timeout.
2926 * Don't want packets missed
2929 vfw_handle_buffered_packets(p->pipe.p, p, p->cnxn_tracker,
2930 FORWARD_BUFFERED_PACKETS);
2932 pipeline_msg_req_handle(&p->pipe);
2933 rte_pipeline_flush(p->pipe.p);
2935 rte_ct_handle_expired_timers(p->cnxn_tracker);
2937 /* now handle packets released by synproxy due to timeout. */
2938 vfw_handle_buffered_packets(p->pipe.p, p, p->cnxn_tracker,
2939 DELETE_BUFFERED_PACKETS);
2945 * Callback function to process CLI commands from FE.
2948 * A pointer to the pipeline.
2950 * A pointer to command specific data.
2953 * A pointer to message handler on success,
2954 * pipeline_msg_req_invalid_hander on error.
2956 void *pipeline_vfw_msg_req_custom_handler(struct pipeline *p, void *msg)
2958 struct pipeline_vfw *pipe_vfw = (struct pipeline_vfw *)p;
2959 struct pipeline_custom_msg_req *req = msg;
2960 pipeline_msg_req_handler f_handle;
2962 f_handle = (req->subtype < PIPELINE_VFW_MSG_REQS) ?
2963 pipe_vfw->custom_handlers[req->subtype] :
2964 pipeline_msg_req_invalid_handler;
2966 if (f_handle == NULL)
2967 f_handle = pipeline_msg_req_invalid_handler;
2969 return f_handle(p, req);
2973 * Handler for synproxy ON/OFF CLI command.
2976 * A pointer to the pipeline.
2978 * A pointer to command specific data.
2981 * Response message contains status.
2984 void *pipeline_vfw_msg_req_synproxy_flag_handler(struct pipeline *p,
2987 struct pipeline_vfw *pipe_vfw = (struct pipeline_vfw *)p;
2988 struct pipeline_vfw_synproxy_flag_msg_req *req = msg;
2989 struct pipeline_vfw_synproxy_flag_msg_rsp *rsp = msg;
2991 if (req->synproxy_flag == 0) {
2992 rte_ct_disable_synproxy(pipe_vfw->cnxn_tracker);
2994 printf("synproxy turned OFF for %s\n", p->name);
2995 } else if (req->synproxy_flag == 1) {
2996 rte_ct_enable_synproxy(pipe_vfw->cnxn_tracker);
2998 printf("synproxy turned ON for %s\n", p->name);
3000 printf("Invalid synproxy setting\n");
3007 struct pipeline_be_ops pipeline_vfw_be_ops = {
3008 .f_init = pipeline_vfw_init,
3009 .f_free = pipeline_vfw_free,
3011 .f_timer = pipeline_vfw_timer,
3012 .f_track = pipeline_vfw_track,