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43 #include <sys/queue.h>
46 #include <rte_common.h>
47 #include <rte_byteorder.h>
49 #include <rte_debug.h>
50 #include <rte_cycles.h>
51 #include <rte_per_lcore.h>
52 #include <rte_lcore.h>
53 #include <rte_atomic.h>
54 #include <rte_branch_prediction.h>
56 #include <rte_memory.h>
57 #include <rte_mempool.h>
59 #include <rte_ether.h>
60 #include <rte_ethdev.h>
64 #include <rte_string_fns.h>
69 arp_op_name(uint16_t arp_op)
76 case ARP_OP_REVREQUEST:
77 return "Reverse ARP Request";
79 return "Reverse ARP Reply";
80 case ARP_OP_INVREQUEST:
81 return "Peer Identify Request";
83 return "Peer Identify Reply";
87 return "Unkwown ARP op";
91 ip_proto_name(uint8_t ip_proto)
93 static const char * ip_proto_names[] = {
94 "IP6HOPOPTS", /**< IP6 hop-by-hop options */
95 "ICMP", /**< control message protocol */
96 "IGMP", /**< group mgmt protocol */
97 "GGP", /**< gateway^2 (deprecated) */
98 "IPv4", /**< IPv4 encapsulation */
101 "TCP", /**< transport control protocol */
102 "ST", /**< Stream protocol II */
103 "EGP", /**< exterior gateway protocol */
104 "PIGP", /**< private interior gateway */
106 "RCC_MON", /**< BBN RCC Monitoring */
107 "NVPII", /**< network voice protocol*/
109 "ARGUS", /**< Argus */
110 "EMCON", /**< EMCON */
112 "XNET", /**< Cross Net Debugger */
113 "CHAOS", /**< Chaos*/
114 "UDP", /**< user datagram protocol */
115 "MUX", /**< Multiplexing */
116 "DCN_MEAS", /**< DCN Measurement Subsystems */
118 "HMP", /**< Host Monitoring */
119 "PRM", /**< Packet Radio Measurement */
120 "XNS_IDP", /**< xns idp */
121 "TRUNK1", /**< Trunk-1 */
122 "TRUNK2", /**< Trunk-2 */
124 "LEAF1", /**< Leaf-1 */
125 "LEAF2", /**< Leaf-2 */
126 "RDP", /**< Reliable Data */
127 "IRTP", /**< Reliable Transaction */
128 "TP4", /**< tp-4 w/ class negotiation */
130 "BLT", /**< Bulk Data Transfer */
131 "NSP", /**< Network Services */
132 "INP", /**< Merit Internodal */
133 "SEP", /**< Sequential Exchange */
134 "3PC", /**< Third Party Connect */
136 "IDPR", /**< InterDomain Policy Routing */
138 "DDP", /**< Datagram Delivery */
139 "CMTP", /**< Control Message Transport */
140 "TPXX", /**< TP++ Transport */
142 "ILTP", /**< IL transport protocol */
143 "IPv6_HDR", /**< IP6 header */
144 "SDRP", /**< Source Demand Routing */
145 "IPv6_RTG", /**< IP6 routing header */
146 "IPv6_FRAG", /**< IP6 fragmentation header */
148 "IDRP", /**< InterDomain Routing*/
149 "RSVP", /**< resource reservation */
150 "GRE", /**< General Routing Encap. */
151 "MHRP", /**< Mobile Host Routing */
154 "ESP", /**< IP6 Encap Sec. Payload */
155 "AH", /**< IP6 Auth Header */
156 "INLSP", /**< Integ. Net Layer Security */
157 "SWIPE", /**< IP with encryption */
158 "NHRP", /**< Next Hop Resolution */
163 "ICMPv6", /**< ICMP6 */
164 "IPv6NONEXT", /**< IP6 no next header */
166 "Ipv6DSTOPTS",/**< IP6 destination option */
167 "AHIP", /**< any host internal protocol */
169 "HELLO", /**< "hello" routing protocol */
170 "SATEXPAK", /**< SATNET/Backroom EXPAK */
172 "KRYPTOLAN", /**< Kryptolan */
173 "RVD", /**< Remote Virtual Disk */
174 "IPPC", /**< Pluribus Packet Core */
175 "ADFS", /**< Any distributed FS */
176 "SATMON", /**< Satnet Monitoring */
178 "VISA", /**< VISA Protocol */
179 "IPCV", /**< Packet Core Utility */
180 "CPNX", /**< Comp. Prot. Net. Executive */
181 "CPHB", /**< Comp. Prot. HeartBeat */
182 "WSN", /**< Wang Span Network */
184 "PVP", /**< Packet Video Protocol */
185 "BRSATMON", /**< BackRoom SATNET Monitoring */
186 "ND", /**< Sun net disk proto (temp.) */
187 "WBMON", /**< WIDEBAND Monitoring */
188 "WBEXPAK", /**< WIDEBAND EXPAK */
190 "EON", /**< ISO cnlp */
192 "SVMTP", /**< Secure VMTP */
193 "VINES", /**< Banyon VINES */
196 "IGP", /**< NSFNET-IGP */
197 "DGP", /**< dissimilar gateway prot. */
199 "IGRP", /**< Cisco/GXS IGRP */
200 "OSPFIGP", /**< OSPFIGP */
202 "SRPC", /**< Strite RPC protocol */
203 "LARP", /**< Locus Address Resoloution */
204 "MTP", /**< Multicast Transport */
205 "AX25", /**< AX.25 Frames */
206 "4IN4", /**< IP encapsulated in IP */
208 "MICP", /**< Mobile Int.ing control */
209 "SCCSP", /**< Semaphore Comm. security */
210 "ETHERIP", /**< Ethernet IP encapsulation */
211 "ENCAP", /**< encapsulation header */
212 "AES", /**< any private encr. scheme */
215 "IPCOMP", /**< payload compression (IPComp) */
218 "PIM", /**< Protocol Independent Mcast */
221 if (ip_proto < sizeof(ip_proto_names) / sizeof(ip_proto_names[0]))
222 return ip_proto_names[ip_proto];
225 case IPPROTO_PGM: /**< PGM */
228 case IPPROTO_SCTP: /**< Stream Control Transport Protocol */
230 #ifdef IPPROTO_DIVERT
231 case IPPROTO_DIVERT: /**< divert pseudo-protocol */
234 case IPPROTO_RAW: /**< raw IP packet */
243 ipv4_addr_to_dot(uint32_t be_ipv4_addr, char *buf)
247 ipv4_addr = rte_be_to_cpu_32(be_ipv4_addr);
248 sprintf(buf, "%d.%d.%d.%d", (ipv4_addr >> 24) & 0xFF,
249 (ipv4_addr >> 16) & 0xFF, (ipv4_addr >> 8) & 0xFF,
254 ether_addr_dump(const char *what, const struct ether_addr *ea)
256 char buf[ETHER_ADDR_FMT_SIZE];
258 ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, ea);
265 ipv4_addr_dump(const char *what, uint32_t be_ipv4_addr)
269 ipv4_addr_to_dot(be_ipv4_addr, buf);
276 * Receive a burst of packets, lookup for ICMP echo requets, and, if any,
277 * send back ICMP echo replies.
280 reply_to_icmp_echo_rqsts(struct fwd_stream *fs)
282 struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
283 struct rte_mbuf *pkt;
284 struct ether_hdr *eth_h;
285 struct vlan_hdr *vlan_h;
286 struct arp_hdr *arp_h;
287 struct ipv4_hdr *ip_h;
288 struct icmp_hdr *icmp_h;
289 struct ether_addr eth_addr;
300 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
303 uint64_t core_cycles;
306 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
307 start_tsc = rte_rdtsc();
311 * First, receive a burst of packets.
313 nb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue, pkts_burst,
315 if (unlikely(nb_rx == 0))
318 #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
319 fs->rx_burst_stats.pkt_burst_spread[nb_rx]++;
321 fs->rx_packets += nb_rx;
323 for (i = 0; i < nb_rx; i++) {
325 eth_h = rte_pktmbuf_mtod(pkt, struct ether_hdr *);
326 eth_type = RTE_BE_TO_CPU_16(eth_h->ether_type);
327 l2_len = sizeof(struct ether_hdr);
328 if (verbose_level > 0) {
329 printf("\nPort %d pkt-len=%u nb-segs=%u\n",
330 fs->rx_port, pkt->pkt_len, pkt->nb_segs);
331 ether_addr_dump(" ETH: src=", ð_h->s_addr);
332 ether_addr_dump(" dst=", ð_h->d_addr);
334 if (eth_type == ETHER_TYPE_VLAN) {
335 vlan_h = (struct vlan_hdr *)
336 ((char *)eth_h + sizeof(struct ether_hdr));
337 l2_len += sizeof(struct vlan_hdr);
338 eth_type = rte_be_to_cpu_16(vlan_h->eth_proto);
339 if (verbose_level > 0) {
340 vlan_id = rte_be_to_cpu_16(vlan_h->vlan_tci)
342 printf(" [vlan id=%u]", vlan_id);
345 if (verbose_level > 0) {
346 printf(" type=0x%04x\n", eth_type);
349 /* Reply to ARP requests */
350 if (eth_type == ETHER_TYPE_ARP) {
351 arp_h = (struct arp_hdr *) ((char *)eth_h + l2_len);
352 arp_op = RTE_BE_TO_CPU_16(arp_h->arp_op);
353 arp_pro = RTE_BE_TO_CPU_16(arp_h->arp_pro);
354 if (verbose_level > 0) {
355 printf(" ARP: hrd=%d proto=0x%04x hln=%d "
356 "pln=%d op=%u (%s)\n",
357 RTE_BE_TO_CPU_16(arp_h->arp_hrd),
358 arp_pro, arp_h->arp_hln,
359 arp_h->arp_pln, arp_op,
360 arp_op_name(arp_op));
362 if ((RTE_BE_TO_CPU_16(arp_h->arp_hrd) !=
364 (arp_pro != ETHER_TYPE_IPv4) ||
365 (arp_h->arp_hln != 6) ||
366 (arp_h->arp_pln != 4)
368 rte_pktmbuf_free(pkt);
369 if (verbose_level > 0)
373 if (verbose_level > 0) {
375 arp_h->arp_data.arp_ip.arp_sha, 6);
376 ether_addr_dump(" sha=", ð_addr);
378 arp_h->arp_data.arp_ip.arp_sip, 4);
379 ipv4_addr_dump(" sip=", ip_addr);
382 arp_h->arp_data.arp_ip.arp_tha, 6);
383 ether_addr_dump(" tha=", ð_addr);
385 arp_h->arp_data.arp_ip.arp_tip, 4);
386 ipv4_addr_dump(" tip=", ip_addr);
389 if (arp_op != ARP_OP_REQUEST) {
390 rte_pktmbuf_free(pkt);
398 /* Use source MAC address as destination MAC address. */
399 ether_addr_copy(ð_h->s_addr, ð_h->d_addr);
400 /* Set source MAC address with MAC address of TX port */
401 ether_addr_copy(&ports[fs->tx_port].eth_addr,
404 arp_h->arp_op = rte_cpu_to_be_16(ARP_OP_REPLY);
405 memcpy(ð_addr, arp_h->arp_data.arp_ip.arp_tha, 6);
406 memcpy(arp_h->arp_data.arp_ip.arp_tha,
407 arp_h->arp_data.arp_ip.arp_sha, 6);
408 memcpy(arp_h->arp_data.arp_ip.arp_sha,
411 /* Swap IP addresses in ARP payload */
412 memcpy(&ip_addr, arp_h->arp_data.arp_ip.arp_sip, 4);
413 memcpy(arp_h->arp_data.arp_ip.arp_sip,
414 arp_h->arp_data.arp_ip.arp_tip, 4);
415 memcpy(arp_h->arp_data.arp_ip.arp_tip, &ip_addr, 4);
416 pkts_burst[nb_replies++] = pkt;
420 if (eth_type != ETHER_TYPE_IPv4) {
421 rte_pktmbuf_free(pkt);
424 ip_h = (struct ipv4_hdr *) ((char *)eth_h + l2_len);
425 if (verbose_level > 0) {
426 ipv4_addr_dump(" IPV4: src=", ip_h->src_addr);
427 ipv4_addr_dump(" dst=", ip_h->dst_addr);
428 printf(" proto=%d (%s)\n",
430 ip_proto_name(ip_h->next_proto_id));
434 * Check if packet is a ICMP echo request.
436 icmp_h = (struct icmp_hdr *) ((char *)ip_h +
437 sizeof(struct ipv4_hdr));
438 if (! ((ip_h->next_proto_id == IPPROTO_ICMP) &&
439 (icmp_h->icmp_type == IP_ICMP_ECHO_REQUEST) &&
440 (icmp_h->icmp_code == 0))) {
441 rte_pktmbuf_free(pkt);
445 if (verbose_level > 0)
446 printf(" ICMP: echo request seq id=%d\n",
447 rte_be_to_cpu_16(icmp_h->icmp_seq_nb));
450 * Prepare ICMP echo reply to be sent back.
451 * - switch ethernet source and destinations addresses,
452 * - switch IPv4 source and destinations addresses,
453 * - set IP_ICMP_ECHO_REPLY in ICMP header.
454 * No need to re-compute the IP header checksum.
455 * Reset ICMP checksum.
457 ether_addr_copy(ð_h->s_addr, ð_addr);
458 ether_addr_copy(ð_h->d_addr, ð_h->s_addr);
459 ether_addr_copy(ð_addr, ð_h->d_addr);
460 ip_addr = ip_h->src_addr;
461 ip_h->src_addr = ip_h->dst_addr;
462 ip_h->dst_addr = ip_addr;
463 icmp_h->icmp_type = IP_ICMP_ECHO_REPLY;
464 icmp_h->icmp_cksum = 0;
465 pkts_burst[nb_replies++] = pkt;
468 /* Send back ICMP echo replies, if any. */
469 if (nb_replies > 0) {
470 nb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue, pkts_burst,
472 fs->tx_packets += nb_tx;
473 #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
474 fs->tx_burst_stats.pkt_burst_spread[nb_tx]++;
476 if (unlikely(nb_tx < nb_replies)) {
477 fs->fwd_dropped += (nb_replies - nb_tx);
479 rte_pktmbuf_free(pkts_burst[nb_tx]);
480 } while (++nb_tx < nb_replies);
484 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
485 end_tsc = rte_rdtsc();
486 core_cycles = (end_tsc - start_tsc);
487 fs->core_cycles = (uint64_t) (fs->core_cycles + core_cycles);
491 struct fwd_engine icmp_echo_engine = {
492 .fwd_mode_name = "icmpecho",
493 .port_fwd_begin = NULL,
494 .port_fwd_end = NULL,
495 .packet_fwd = reply_to_icmp_echo_rqsts,