net: fix conflict with libc
[dpdk.git] / app / test-pmd / icmpecho.c
1 /*-
2  *   BSD LICENSE
3  *
4  *   Copyright(c) 2013 6WIND
5  *   All rights reserved.
6  *
7  *   Redistribution and use in source and binary forms, with or without
8  *   modification, are permitted provided that the following conditions
9  *   are met:
10  *
11  *     * Redistributions of source code must retain the above copyright
12  *       notice, this list of conditions and the following disclaimer.
13  *     * Redistributions in binary form must reproduce the above copyright
14  *       notice, this list of conditions and the following disclaimer in
15  *       the documentation and/or other materials provided with the
16  *       distribution.
17  *     * Neither the name of 6WIND S.A. nor the names of its
18  *       contributors may be used to endorse or promote products derived
19  *       from this software without specific prior written permission.
20  *
21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32  *
33  */
34
35 #include <stdarg.h>
36 #include <string.h>
37 #include <stdio.h>
38 #include <errno.h>
39 #include <stdint.h>
40 #include <unistd.h>
41 #include <inttypes.h>
42
43 #include <sys/queue.h>
44 #include <sys/stat.h>
45
46 #include <rte_common.h>
47 #include <rte_byteorder.h>
48 #include <rte_log.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>
55 #include <rte_ring.h>
56 #include <rte_memory.h>
57 #include <rte_mempool.h>
58 #include <rte_mbuf.h>
59 #include <rte_ether.h>
60 #include <rte_ethdev.h>
61 #include <rte_arp.h>
62 #include <rte_ip.h>
63 #include <rte_icmp.h>
64 #include <rte_string_fns.h>
65
66 #include "testpmd.h"
67
68 static const char *
69 arp_op_name(uint16_t arp_op)
70 {
71         switch (arp_op ) {
72         case ARP_OP_REQUEST:
73                 return "ARP Request";
74         case ARP_OP_REPLY:
75                 return "ARP Reply";
76         case ARP_OP_REVREQUEST:
77                 return "Reverse ARP Request";
78         case ARP_OP_REVREPLY:
79                 return "Reverse ARP Reply";
80         case ARP_OP_INVREQUEST:
81                 return "Peer Identify Request";
82         case ARP_OP_INVREPLY:
83                 return "Peer Identify Reply";
84         default:
85                 break;
86         }
87         return "Unkwown ARP op";
88 }
89
90 static const char *
91 ip_proto_name(uint8_t ip_proto)
92 {
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 */
99
100                 "UNASSIGNED",
101                 "TCP",        /**< transport control protocol */
102                 "ST",         /**< Stream protocol II */
103                 "EGP",        /**< exterior gateway protocol */
104                 "PIGP",       /**< private interior gateway */
105
106                 "RCC_MON",    /**< BBN RCC Monitoring */
107                 "NVPII",      /**< network voice protocol*/
108                 "PUP",        /**< pup */
109                 "ARGUS",      /**< Argus */
110                 "EMCON",      /**< EMCON */
111
112                 "XNET",       /**< Cross Net Debugger */
113                 "CHAOS",      /**< Chaos*/
114                 "UDP",        /**< user datagram protocol */
115                 "MUX",        /**< Multiplexing */
116                 "DCN_MEAS",   /**< DCN Measurement Subsystems */
117
118                 "HMP",        /**< Host Monitoring */
119                 "PRM",        /**< Packet Radio Measurement */
120                 "XNS_IDP",    /**< xns idp */
121                 "TRUNK1",     /**< Trunk-1 */
122                 "TRUNK2",     /**< Trunk-2 */
123
124                 "LEAF1",      /**< Leaf-1 */
125                 "LEAF2",      /**< Leaf-2 */
126                 "RDP",        /**< Reliable Data */
127                 "IRTP",       /**< Reliable Transaction */
128                 "TP4",        /**< tp-4 w/ class negotiation */
129
130                 "BLT",        /**< Bulk Data Transfer */
131                 "NSP",        /**< Network Services */
132                 "INP",        /**< Merit Internodal */
133                 "SEP",        /**< Sequential Exchange */
134                 "3PC",        /**< Third Party Connect */
135
136                 "IDPR",       /**< InterDomain Policy Routing */
137                 "XTP",        /**< XTP */
138                 "DDP",        /**< Datagram Delivery */
139                 "CMTP",       /**< Control Message Transport */
140                 "TPXX",       /**< TP++ Transport */
141
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 */
147
148                 "IDRP",       /**< InterDomain Routing*/
149                 "RSVP",       /**< resource reservation */
150                 "GRE",        /**< General Routing Encap. */
151                 "MHRP",       /**< Mobile Host Routing */
152                 "BHA",        /**< BHA */
153
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 */
159
160                 "UNASSIGNED",
161                 "UNASSIGNED",
162                 "UNASSIGNED",
163                 "ICMPv6",     /**< ICMP6 */
164                 "IPv6NONEXT", /**< IP6 no next header */
165
166                 "Ipv6DSTOPTS",/**< IP6 destination option */
167                 "AHIP",       /**< any host internal protocol */
168                 "CFTP",       /**< CFTP */
169                 "HELLO",      /**< "hello" routing protocol */
170                 "SATEXPAK",   /**< SATNET/Backroom EXPAK */
171
172                 "KRYPTOLAN",  /**< Kryptolan */
173                 "RVD",        /**< Remote Virtual Disk */
174                 "IPPC",       /**< Pluribus Packet Core */
175                 "ADFS",       /**< Any distributed FS */
176                 "SATMON",     /**< Satnet Monitoring */
177
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 */
183
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 */
189
190                 "EON",        /**< ISO cnlp */
191                 "VMTP",       /**< VMTP */
192                 "SVMTP",      /**< Secure VMTP */
193                 "VINES",      /**< Banyon VINES */
194                 "TTP",        /**< TTP */
195
196                 "IGP",        /**< NSFNET-IGP */
197                 "DGP",        /**< dissimilar gateway prot. */
198                 "TCF",        /**< TCF */
199                 "IGRP",       /**< Cisco/GXS IGRP */
200                 "OSPFIGP",    /**< OSPFIGP */
201
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 */
207
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 */
213
214                 "GMTP",       /**< GMTP */
215                 "IPCOMP",     /**< payload compression (IPComp) */
216                 "UNASSIGNED",
217                 "UNASSIGNED",
218                 "PIM",        /**< Protocol Independent Mcast */
219         };
220
221         if (ip_proto < sizeof(ip_proto_names) / sizeof(ip_proto_names[0]))
222                 return ip_proto_names[ip_proto];
223         switch (ip_proto) {
224 #ifdef IPPROTO_PGM
225         case IPPROTO_PGM:  /**< PGM */
226                 return "PGM";
227 #endif
228         case IPPROTO_SCTP:  /**< Stream Control Transport Protocol */
229                 return "SCTP";
230 #ifdef IPPROTO_DIVERT
231         case IPPROTO_DIVERT: /**< divert pseudo-protocol */
232                 return "DIVERT";
233 #endif
234         case IPPROTO_RAW: /**< raw IP packet */
235                 return "RAW";
236         default:
237                 break;
238         }
239         return "UNASSIGNED";
240 }
241
242 static void
243 ipv4_addr_to_dot(uint32_t be_ipv4_addr, char *buf)
244 {
245         uint32_t ipv4_addr;
246
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,
250                 ipv4_addr & 0xFF);
251 }
252
253 static void
254 ether_addr_dump(const char *what, const struct ether_addr *ea)
255 {
256         char buf[ETHER_ADDR_FMT_SIZE];
257
258         ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, ea);
259         if (what)
260                 printf("%s", what);
261         printf("%s", buf);
262 }
263
264 static void
265 ipv4_addr_dump(const char *what, uint32_t be_ipv4_addr)
266 {
267         char buf[16];
268
269         ipv4_addr_to_dot(be_ipv4_addr, buf);
270         if (what)
271                 printf("%s", what);
272         printf("%s", buf);
273 }
274
275 /*
276  * Receive a burst of packets, lookup for ICMP echo requets, and, if any,
277  * send back ICMP echo replies.
278  */
279 static void
280 reply_to_icmp_echo_rqsts(struct fwd_stream *fs)
281 {
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;
290         uint32_t ip_addr;
291         uint16_t nb_rx;
292         uint16_t nb_tx;
293         uint16_t nb_replies;
294         uint16_t eth_type;
295         uint16_t vlan_id;
296         uint16_t arp_op;
297         uint16_t arp_pro;
298         uint8_t  i;
299         int l2_len;
300 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
301         uint64_t start_tsc;
302         uint64_t end_tsc;
303         uint64_t core_cycles;
304 #endif
305
306 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
307         start_tsc = rte_rdtsc();
308 #endif
309
310         /*
311          * First, receive a burst of packets.
312          */
313         nb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue, pkts_burst,
314                                  nb_pkt_per_burst);
315         if (unlikely(nb_rx == 0))
316                 return;
317
318 #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
319         fs->rx_burst_stats.pkt_burst_spread[nb_rx]++;
320 #endif
321         fs->rx_packets += nb_rx;
322         nb_replies = 0;
323         for (i = 0; i < nb_rx; i++) {
324                 pkt = pkts_burst[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=", &eth_h->s_addr);
332                         ether_addr_dump(" dst=", &eth_h->d_addr);
333                 }
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)
341                                         & 0xFFF;
342                                 printf(" [vlan id=%u]", vlan_id);
343                         }
344                 }
345                 if (verbose_level > 0) {
346                         printf(" type=0x%04x\n", eth_type);
347                 }
348
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));
361                         }
362                         if ((RTE_BE_TO_CPU_16(arp_h->arp_hrd) !=
363                              ARP_HRD_ETHER) ||
364                             (arp_pro != ETHER_TYPE_IPv4) ||
365                             (arp_h->arp_hln != 6) ||
366                             (arp_h->arp_pln != 4)
367                             ) {
368                                 rte_pktmbuf_free(pkt);
369                                 if (verbose_level > 0)
370                                         printf("\n");
371                                 continue;
372                         }
373                         if (verbose_level > 0) {
374                                 memcpy(&eth_addr,
375                                        arp_h->arp_data.arp_ip.arp_sha, 6);
376                                 ether_addr_dump("        sha=", &eth_addr);
377                                 memcpy(&ip_addr,
378                                        arp_h->arp_data.arp_ip.arp_sip, 4);
379                                 ipv4_addr_dump(" sip=", ip_addr);
380                                 printf("\n");
381                                 memcpy(&eth_addr,
382                                        arp_h->arp_data.arp_ip.arp_tha, 6);
383                                 ether_addr_dump("        tha=", &eth_addr);
384                                 memcpy(&ip_addr,
385                                        arp_h->arp_data.arp_ip.arp_tip, 4);
386                                 ipv4_addr_dump(" tip=", ip_addr);
387                                 printf("\n");
388                         }
389                         if (arp_op != ARP_OP_REQUEST) {
390                                 rte_pktmbuf_free(pkt);
391                                 continue;
392                         }
393
394                         /*
395                          * Build ARP reply.
396                          */
397
398                         /* Use source MAC address as destination MAC address. */
399                         ether_addr_copy(&eth_h->s_addr, &eth_h->d_addr);
400                         /* Set source MAC address with MAC address of TX port */
401                         ether_addr_copy(&ports[fs->tx_port].eth_addr,
402                                         &eth_h->s_addr);
403
404                         arp_h->arp_op = rte_cpu_to_be_16(ARP_OP_REPLY);
405                         memcpy(&eth_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,
409                                &eth_h->s_addr, 6);
410
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;
417                         continue;
418                 }
419
420                 if (eth_type != ETHER_TYPE_IPv4) {
421                         rte_pktmbuf_free(pkt);
422                         continue;
423                 }
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",
429                                ip_h->next_proto_id,
430                                ip_proto_name(ip_h->next_proto_id));
431                 }
432
433                 /*
434                  * Check if packet is a ICMP echo request.
435                  */
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);
442                         continue;
443                 }
444
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));
448
449                 /*
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.
456                  */
457                 ether_addr_copy(&eth_h->s_addr, &eth_addr);
458                 ether_addr_copy(&eth_h->d_addr, &eth_h->s_addr);
459                 ether_addr_copy(&eth_addr, &eth_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;
466         }
467
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,
471                                          nb_replies);
472                 fs->tx_packets += nb_tx;
473 #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
474                 fs->tx_burst_stats.pkt_burst_spread[nb_tx]++;
475 #endif
476                 if (unlikely(nb_tx < nb_replies)) {
477                         fs->fwd_dropped += (nb_replies - nb_tx);
478                         do {
479                                 rte_pktmbuf_free(pkts_burst[nb_tx]);
480                         } while (++nb_tx < nb_replies);
481                 }
482         }
483
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);
488 #endif
489 }
490
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,
496 };