2 *------------------------------------------------------------------
3 * Copyright (c) 2017 Cisco and/or its affiliates.
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.
15 *------------------------------------------------------------------
21 #include <sys/types.h>
23 #include <sys/ioctl.h>
24 #include <sys/socket.h>
28 #include <sys/prctl.h>
34 #include <linux/icmp.h>
35 #include <arpa/inet.h>
37 #include <netinet/if_ether.h>
38 #include <net/if_arp.h>
39 #include <asm/byteorder.h>
42 #include <sys/epoll.h>
51 #include <icmp_proto.h>
53 #define APP_NAME "ICMP_Responder"
54 #define IF_NAME "memif_connection"
58 #define DBG(...) do { \
59 printf (APP_NAME":%s:%d: ", __func__, __LINE__); \
60 printf (__VA_ARGS__); \
63 #define LOG(...) do { \
65 dprintf (out_fd, __VA_ARGS__); \
66 dprintf (out_fd, "\n"); \
69 #define LOG_FILE "/tmp/memif_time_test.txt"
75 #define INFO(...) do { \
76 printf ("INFO: "__VA_ARGS__); \
81 /* maximum tx/rx memif buffers */
82 #define MAX_MEMIF_BUFS 256
92 /* memif conenction handle */
93 memif_conn_handle_t conn;
95 memif_buffer_t *tx_bufs;
96 /* allocated tx buffers counter */
97 /* number of tx buffers pointing to shared memory */
100 memif_buffer_t *rx_bufs;
101 /* allcoated rx buffers counter */
102 /* number of rx buffers pointing to shared memory */
104 /* interface ip address */
107 uint64_t tx_counter, rx_counter, tx_err_counter;
108 uint64_t t_sec, t_nsec;
109 } memif_connection_t;
117 } icmpr_thread_data_t;
119 memif_connection_t memif_connection[MAX_CONNS];
120 icmpr_thread_data_t icmpr_thread_data[MAX_CONNS];
121 pthread_t thread[MAX_CONNS];
124 /* print details for all memif connections */
126 print_memif_details ()
133 buf = malloc (buflen);
134 printf ("MEMIF DETAILS\n");
135 printf ("==============================\n");
136 for (i = 0; i < MAX_CONNS; i++)
138 memif_connection_t *c = &memif_connection[i];
140 memset (&md, 0, sizeof (md));
141 memset (buf, 0, buflen);
143 err = memif_get_details (c->conn, &md, buf, buflen);
144 if (err != MEMIF_ERR_SUCCESS)
146 if (err != MEMIF_ERR_NOCONN)
147 INFO ("%s", memif_strerror (err));
151 printf ("interface index: %d\n", i);
153 printf ("\tinterface ip: %u.%u.%u.%u\n",
154 c->ip_addr[0], c->ip_addr[1], c->ip_addr[2], c->ip_addr[3]);
155 printf ("\tinterface name: %s\n", (char *) md.if_name);
156 printf ("\tapp name: %s\n", (char *) md.inst_name);
157 printf ("\tremote interface name: %s\n", (char *) md.remote_if_name);
158 printf ("\tremote app name: %s\n", (char *) md.remote_inst_name);
159 printf ("\tid: %u\n", md.id);
160 printf ("\tsecret: %s\n", (char *) md.secret);
170 printf ("ethernet\n");
176 printf ("punt/inject\n");
179 printf ("unknown\n");
182 printf ("\tsocket filename: %s\n", (char *) md.socket_filename);
183 printf ("\trx queues:\n");
184 for (e = 0; e < md.rx_queues_num; e++)
186 printf ("\t\tqueue id: %u\n", md.rx_queues[e].qid);
187 printf ("\t\tring size: %u\n", md.rx_queues[e].ring_size);
188 printf ("\t\tring rx mode: %s\n",
189 md.rx_queues[e].flags ? "polling" : "interrupt");
190 printf ("\t\tring head: %u\n", md.rx_queues[e].head);
191 printf ("\t\tring tail: %u\n", md.rx_queues[e].tail);
192 printf ("\t\tbuffer size: %u\n", md.rx_queues[e].buffer_size);
194 printf ("\ttx queues:\n");
195 for (e = 0; e < md.tx_queues_num; e++)
197 printf ("\t\tqueue id: %u\n", md.tx_queues[e].qid);
198 printf ("\t\tring size: %u\n", md.tx_queues[e].ring_size);
199 printf ("\t\tring rx mode: %s\n",
200 md.tx_queues[e].flags ? "polling" : "interrupt");
201 printf ("\t\tring head: %u\n", md.tx_queues[e].head);
202 printf ("\t\tring tail: %u\n", md.tx_queues[e].tail);
203 printf ("\t\tbuffer size: %u\n", md.tx_queues[e].buffer_size);
215 add_epoll_fd (int fd, uint32_t events)
219 DBG ("invalid fd %d", fd);
222 struct epoll_event evt;
223 memset (&evt, 0, sizeof (evt));
226 if (epoll_ctl (epfd, EPOLL_CTL_ADD, fd, &evt) < 0)
228 DBG ("epoll_ctl: %s fd %d", strerror (errno), fd);
231 DBG ("fd %d added to epoll", fd);
236 mod_epoll_fd (int fd, uint32_t events)
240 DBG ("invalid fd %d", fd);
243 struct epoll_event evt;
244 memset (&evt, 0, sizeof (evt));
247 if (epoll_ctl (epfd, EPOLL_CTL_MOD, fd, &evt) < 0)
249 DBG ("epoll_ctl: %s fd %d", strerror (errno), fd);
252 DBG ("fd %d moddified on epoll", fd);
257 del_epoll_fd (int fd)
261 DBG ("invalid fd %d", fd);
264 struct epoll_event evt;
265 memset (&evt, 0, sizeof (evt));
266 if (epoll_ctl (epfd, EPOLL_CTL_DEL, fd, &evt) < 0)
268 DBG ("epoll_ctl: %s fd %d", strerror (errno), fd);
271 DBG ("fd %d removed from epoll", fd);
275 /* informs user about connected status. private_ctx is used by user to identify connection
276 (multiple connections WIP) */
278 on_connect (memif_conn_handle_t conn, void *private_ctx)
280 INFO ("memif connected!");
285 /* informs user about disconnected status. private_ctx is used by user to identify connection
286 (multiple connections WIP) */
288 on_disconnect (memif_conn_handle_t conn, void *private_ctx)
290 INFO ("memif disconnected!");
294 /* user needs to watch new fd or stop watching fd that is about to be closed.
295 control fd will be modified during connection establishment to minimize CPU usage */
297 control_fd_update (int fd, uint8_t events)
299 /* convert memif event definitions to epoll events */
300 if (events & MEMIF_FD_EVENT_DEL)
301 return del_epoll_fd (fd);
304 if (events & MEMIF_FD_EVENT_READ)
306 if (events & MEMIF_FD_EVENT_WRITE)
309 if (events & MEMIF_FD_EVENT_MOD)
310 return mod_epoll_fd (fd, evt);
312 return add_epoll_fd (fd, evt);
316 icmpr_buffer_alloc (long index, long n, uint16_t * r, uint16_t i,
319 memif_connection_t *c = &memif_connection[index];
321 /* set data pointer to shared memory and set buffer_len to shared mmeory buffer len */
322 err = memif_buffer_alloc (c->conn, qid, c->tx_bufs + i, n, r, 128);
323 if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
325 INFO ("memif_buffer_alloc: %s", memif_strerror (err));
329 DBG ("allocated %d/%ld buffers, %u free buffers", *r, n,
330 MAX_MEMIF_BUFS - c->tx_buf_num);
335 icmpr_tx_burst (long index, uint16_t qid)
337 memif_connection_t *c = &memif_connection[index];
340 /* inform peer memif interface about data in shared memory buffers */
341 /* mark memif buffers as free */
342 err = memif_tx_burst (c->conn, qid, c->tx_bufs, c->tx_buf_num, &r);
343 if (err != MEMIF_ERR_SUCCESS)
344 INFO ("memif_tx_burst: %s", memif_strerror (err));
350 /* called when event is polled on interrupt file descriptor.
351 there are packets in shared memory ready to be received */
353 on_interrupt (memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
355 long index = *((long *) private_ctx);
356 memif_connection_t *c = &memif_connection[index];
357 if (c->index != index)
359 INFO ("invalid context: %ld/%u", index, c->index);
363 int err = MEMIF_ERR_SUCCESS, ret_val;
364 uint16_t rx = 0, tx = 0;
366 int i = 0; /* rx buffer iterator */
367 int j = 0; /* tx bufferiterator */
369 /* loop while there are packets in shm */
372 /* receive data from shared memory buffers */
373 err = memif_rx_burst (c->conn, qid, c->rx_bufs, MAX_MEMIF_BUFS, &rx);
376 if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF))
378 INFO ("memif_rx_burst: %s", memif_strerror (err));
383 err = memif_buffer_alloc (c->conn, qid, c->tx_bufs, rx, &tx, 128);
384 if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
386 INFO ("memif_buffer_alloc: %s", memif_strerror (err));
390 c->tx_err_counter += rx - tx;
394 resolve_packet ((void *) (c->rx_bufs + i)->data,
395 (c->rx_bufs + i)->len,
396 (void *) (c->tx_bufs + j)->data,
397 &(c->tx_bufs + j)->len, c->ip_addr);
403 err = memif_refill_queue (c->conn, qid, rx);
404 if (err != MEMIF_ERR_SUCCESS)
405 INFO ("memif_buffer_free: %s", memif_strerror (err));
408 DBG ("freed %d buffers. %u/%u alloc/free buffers",
409 rx, rx, MAX_MEMIF_BUFS - rx);
411 err = memif_tx_burst (c->conn, qid, c->tx_bufs, j, &tx);
412 if (err != MEMIF_ERR_SUCCESS)
414 INFO ("memif_tx_burst: %s", memif_strerror (err));
420 while (ret_val == MEMIF_ERR_NOBUF);
425 err = memif_refill_queue (c->conn, qid, rx);
426 if (err != MEMIF_ERR_SUCCESS)
427 INFO ("memif_buffer_free: %s", memif_strerror (err));
429 DBG ("freed %d buffers. %u/%u alloc/free buffers",
430 fb, c->rx_buf_num, MAX_MEMIF_BUFS - c->rx_buf_num);
434 /* called when event is polled on interrupt file descriptor.
435 there are packets in shared memory ready to be received */
436 /* dev test modification: loop until TX == RX (don't drop buffers) */
438 on_interrupt0 (memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
440 long index = *((long *) private_ctx);
441 memif_connection_t *c = &memif_connection[index];
442 if (c->index != index)
444 INFO ("invalid context: %ld/%u", index, c->index);
448 int err = MEMIF_ERR_SUCCESS, ret_val;
449 uint16_t rx = 0, tx = 0;
451 int i; /* rx buffer iterator */
452 int j; /* tx bufferiterator */
453 int prev_i; /* first allocated rx buffer */
455 /* loop while there are packets in shm */
458 /* receive data from shared memory buffers */
459 err = memif_rx_burst (c->conn, qid, c->rx_bufs, MAX_MEMIF_BUFS, &rx);
462 if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF))
464 INFO ("memif_rx_burst: %s", memif_strerror (err));
470 /* loop while there are RX buffers to be processed */
474 /* try to alloc required number of buffers buffers */
475 err = memif_buffer_alloc (c->conn, qid, c->tx_bufs, rx, &tx, 128);
476 if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
478 INFO ("memif_buffer_alloc: %s", memif_strerror (err));
488 resolve_packet ((void *) (c->rx_bufs + i)->data,
489 (c->rx_bufs + i)->len,
490 (void *) (c->tx_bufs + j)->data,
491 &(c->tx_bufs + j)->len, c->ip_addr);
492 resolve_packet ((void *) (c->rx_bufs + i + 1)->data,
493 (c->rx_bufs + i + 1)->len,
494 (void *) (c->tx_bufs + j + 1)->data,
495 &(c->tx_bufs + j + 1)->len, c->ip_addr);
501 resolve_packet ((void *) (c->rx_bufs + i)->data,
502 (c->rx_bufs + i)->len,
503 (void *) (c->tx_bufs + j)->data,
504 &(c->tx_bufs + j)->len, c->ip_addr);
509 /* mark memif buffers and shared memory buffers as free */
510 /* free processed buffers */
511 err = memif_refill_queue (c->conn, qid, j);
512 if (err != MEMIF_ERR_SUCCESS)
513 INFO ("memif_buffer_free: %s", memif_strerror (err));
517 DBG ("freed %d buffers. %u/%u alloc/free buffers",
518 fb, rx, MAX_MEMIF_BUFS - rx);
520 /* transmit allocated buffers */
521 err = memif_tx_burst (c->conn, qid, c->tx_bufs, j, &tx);
522 if (err != MEMIF_ERR_SUCCESS)
524 INFO ("memif_tx_burst: %s", memif_strerror (err));
532 while (ret_val == MEMIF_ERR_NOBUF);
537 err = memif_refill_queue (c->conn, qid, rx);
538 if (err != MEMIF_ERR_SUCCESS)
539 INFO ("memif_buffer_free: %s", memif_strerror (err));
541 DBG ("freed %d buffers. %u/%u alloc/free buffers",
542 fb, c->rx_buf_num, MAX_MEMIF_BUFS - c->rx_buf_num);
546 /* called when event is polled on interrupt file descriptor.
547 there are packets in shared memory ready to be received */
548 /* dev test modification: handle only ARP requests */
550 on_interrupt1 (memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
552 long index = *((long *) private_ctx);
553 memif_connection_t *c = &memif_connection[index];
554 if (c->index != index)
556 INFO ("invalid context: %ld/%u", index, c->index);
560 int err = MEMIF_ERR_SUCCESS, ret_val;
568 /* receive data from shared memory buffers */
569 err = memif_rx_burst (c->conn, qid, c->rx_bufs, MAX_MEMIF_BUFS, &rx);
571 if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF))
573 INFO ("memif_rx_burst: %s", memif_strerror (err));
579 for (i = 0; i < rx; i++)
581 if (((struct ether_header *) (c->rx_bufs + i)->data)->ether_type ==
584 if (icmpr_buffer_alloc (c->index, 1, &tx, i, qid) < 0)
586 resolve_packet ((void *) (c->rx_bufs + i)->data,
587 (c->rx_bufs + i)->len,
588 (void *) (c->tx_bufs + i)->data,
589 &(c->tx_bufs + i)->len, c->ip_addr);
590 icmpr_tx_burst (c->index, qid);
594 err = memif_refill_queue (c->conn, qid, rx);
595 if (err != MEMIF_ERR_SUCCESS)
596 INFO ("memif_buffer_free: %s", memif_strerror (err));
601 while (ret_val == MEMIF_ERR_NOBUF);
606 err = memif_refill_queue (c->conn, qid, rx);
607 if (err != MEMIF_ERR_SUCCESS)
608 INFO ("memif_buffer_free: %s", memif_strerror (err));
610 DBG ("freed %d buffers. %u/%u alloc/free buffers",
611 fb, c->rx_buf_num, MAX_MEMIF_BUFS - c->rx_buf_num);
616 icmpr_memif_create (long index, long mode, char *s)
618 if (index >= MAX_CONNS)
620 INFO ("connection array overflow");
625 INFO ("don't even try...");
628 memif_connection_t *c = &memif_connection[index];
630 /* setting memif connection arguments */
631 memif_conn_args_t args;
633 memset (&args, 0, sizeof (args));
634 args.is_master = mode;
635 args.log2_ring_size = 11;
636 args.buffer_size = 2048;
637 args.num_s2m_rings = 1;
638 args.num_m2s_rings = 1;
639 strncpy ((char *) args.interface_name, IF_NAME, strlen (IF_NAME));
641 /* socket filename is not specified, because this app is supposed to
642 connect to VPP over memif. so default socket filename will be used */
643 /* default socketfile = /run/vpp/memif.sock */
645 args.interface_id = index;
646 /* last argument for memif_create (void * private_ctx) is used by user
647 to identify connection. this context is returned with callbacks */
649 /* default interrupt */
652 err = memif_create (&c->conn,
653 &args, on_connect, on_disconnect, on_interrupt,
655 if (err != MEMIF_ERR_SUCCESS)
657 INFO ("memif_create: %s", memif_strerror (err));
663 if (strncmp (s, "0", 1) == 0)
665 err = memif_create (&c->conn,
666 &args, on_connect, on_disconnect, on_interrupt0,
668 if (err != MEMIF_ERR_SUCCESS)
670 INFO ("memif_create: %s", memif_strerror (err));
674 else if (strncmp (s, "1", 1) == 0)
676 err = memif_create (&c->conn,
677 &args, on_connect, on_disconnect, on_interrupt1,
679 if (err != MEMIF_ERR_SUCCESS)
681 INFO ("memif_create: %s", memif_strerror (err));
687 INFO ("Unknown interrupt descriptor");
693 /* alloc memif buffers */
696 (memif_buffer_t *) malloc (sizeof (memif_buffer_t) * MAX_MEMIF_BUFS);
699 (memif_buffer_t *) malloc (sizeof (memif_buffer_t) * MAX_MEMIF_BUFS);
703 c->ip_addr[2] = c->index + 1;
706 c->seq = c->tx_err_counter = c->tx_counter = c->rx_counter = 0;
713 icmpr_memif_delete (long index)
715 if (index >= MAX_CONNS)
717 INFO ("connection array overflow");
722 INFO ("don't even try...");
725 memif_connection_t *c = &memif_connection[index];
737 /* disconenct then delete memif connection */
738 err = memif_delete (&c->conn);
739 if (err != MEMIF_ERR_SUCCESS)
740 INFO ("memif_delete: %s", memif_strerror (err));
742 INFO ("memif delete fail");
749 printf ("LIBMEMIF EXAMPLE APP: %s", APP_NAME);
754 printf ("==============================\n");
755 printf ("libmemif version: %s", LIBMEMIF_VERSION);
760 printf ("memif version: %d\n", memif_get_version ());
761 printf ("commands:\n");
762 printf ("\thelp - prints this help\n");
763 printf ("\texit - exit app\n");
765 ("\tconn <index> <mode> [<interrupt-desc>] - create memif. index is also used as interface id, mode 0 = slave 1 = master, interrupt-desc none = default 0 = if ring is full wait 1 = handle only ARP requests\n");
766 printf ("\tdel <index> - delete memif\n");
767 printf ("\tshow - show connection details\n");
768 printf ("\tip-set <index> <ip-addr> - set interface ip address\n");
770 ("\trx-mode <index> <qid> <polling|interrupt> - set queue rx mode\n");
771 printf ("\tsh-count - print counters\n");
772 printf ("\tcl-count - clear counters\n");
773 printf ("\tsend <index> <tx> <ip> <mac> - send icmp\n");
779 /* application cleanup */
785 for (i = 0; i < MAX_CONNS; i++)
787 memif_connection_t *c = &memif_connection[i];
789 icmpr_memif_delete (i);
792 err = memif_cleanup ();
793 if (err != MEMIF_ERR_SUCCESS)
794 INFO ("memif_delete: %s", memif_strerror (err));
800 icmpr_set_ip (long index, char *ip)
802 if (index >= MAX_CONNS)
804 INFO ("connection array overflow");
809 INFO ("don't even try...");
812 memif_connection_t *c = &memif_connection[index];
815 INFO ("no connection at index %ld", index);
822 ui = strtok (ip, ".");
825 tmp[0] = strtol (ui, &end, 10);
827 ui = strtok (NULL, ".");
830 tmp[1] = strtol (ui, &end, 10);
832 ui = strtok (NULL, ".");
835 tmp[2] = strtol (ui, &end, 10);
837 ui = strtok (NULL, ".");
840 tmp[3] = strtol (ui, &end, 10);
842 c->ip_addr[0] = tmp[0];
843 c->ip_addr[1] = tmp[1];
844 c->ip_addr[2] = tmp[2];
845 c->ip_addr[3] = tmp[3];
847 INFO ("memif %ld ip address set to %u.%u.%u.%u",
848 index, c->ip_addr[0], c->ip_addr[1], c->ip_addr[2], c->ip_addr[3]);
853 INFO ("invalid ip address");
858 icmpr_set_rx_mode (long index, long qid, char *mode)
860 if (index >= MAX_CONNS)
862 INFO ("connection array overflow");
867 INFO ("don't even try...");
870 memif_connection_t *c = &memif_connection[index];
874 INFO ("no connection at index %ld", index);
878 if (strncmp (mode, "interrupt", 9) == 0)
880 memif_set_rx_mode (c->conn, MEMIF_RX_MODE_INTERRUPT, qid);
883 else if (strncmp (mode, "polling", 7) == 0)
885 memif_set_rx_mode (c->conn, MEMIF_RX_MODE_POLLING, qid);
888 INFO ("expected rx mode <interrupt|polling>");
893 icmpr_print_counters ()
896 for (i = 0; i < MAX_CONNS; i++)
898 memif_connection_t *c = &memif_connection[i];
901 printf ("===============================\n");
902 printf ("interface index: %d\n", c->index);
903 printf ("\trx: %lu\n", c->rx_counter);
904 printf ("\ttx: %lu\n", c->tx_counter);
905 printf ("\ttx_err: %lu\n", c->tx_err_counter);
906 printf ("\tts: %lus %luns\n", c->t_sec, c->t_nsec);
911 icmpr_reset_counters ()
914 for (i = 0; i < MAX_CONNS; i++)
916 memif_connection_t *c = &memif_connection[i];
919 c->t_sec = c->t_nsec = c->tx_err_counter = c->tx_counter =
925 icmpr_send_proc (void *data)
927 icmpr_thread_data_t *d = (icmpr_thread_data_t *) data;
928 int index = d->index;
929 uint64_t count = d->packet_num;
930 memif_connection_t *c = &memif_connection[index];
933 INFO ("No connection at index %d. Thread exiting...\n", index);
937 int err = MEMIF_ERR_SUCCESS;
939 struct timespec start, end;
940 memset (&start, 0, sizeof (start));
941 memset (&end, 0, sizeof (end));
943 timespec_get (&start, TIME_UTC);
947 err = memif_buffer_alloc (c->conn, 0, c->tx_bufs,
949 count ? count : MAX_MEMIF_BUFS, &tx, 128);
950 if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
952 INFO ("memif_buffer_alloc: %s Thread exiting...\n",
953 memif_strerror (err));
962 generate_packet ((void *) c->tx_bufs[i].data,
963 &c->tx_bufs[i].len, c->ip_addr,
964 d->ip_daddr, d->hw_daddr, seq++);
965 generate_packet ((void *) c->tx_bufs[i + 1].data,
966 &c->tx_bufs[i + 1].len, c->ip_addr,
967 d->ip_daddr, d->hw_daddr, seq++);
971 generate_packet ((void *) c->tx_bufs[i].data,
972 &c->tx_bufs[i].len, c->ip_addr,
973 d->ip_daddr, d->hw_daddr, seq++);
977 err = memif_tx_burst (c->conn, 0, c->tx_bufs, c->tx_buf_num, &tx);
978 if (err != MEMIF_ERR_SUCCESS)
980 INFO ("memif_tx_burst: %s Thread exiting...\n",
981 memif_strerror (err));
988 timespec_get (&end, TIME_UTC);
989 INFO ("Pakcet sequence finished!");
990 INFO ("Seq len: %u", seq);
991 uint64_t t1 = end.tv_sec - start.tv_sec;
993 if (end.tv_nsec > start.tv_nsec)
995 t2 = end.tv_nsec - start.tv_nsec;
999 t2 = start.tv_nsec - end.tv_nsec;
1004 INFO ("Seq time: %lus %luns", t1, t2);
1008 INFO ("Average pps: %f", tmp);
1009 INFO ("Thread exiting...");
1010 pthread_exit (NULL);
1014 icmpr_send (long index, long packet_num, char *hw, char *ip)
1016 memif_connection_t *c = &memif_connection[index];
1020 if (c->conn == NULL)
1023 icmpr_thread_data_t *data = &icmpr_thread_data[index];
1024 data->index = index;
1025 data->packet_num = packet_num;
1026 INFO ("PN: %lu", data->packet_num);
1027 printf ("%s\n", ip);
1028 printf ("%s\n", hw);
1030 ui = strtok (ip, ".");
1033 tmp[0] = strtol (ui, &end, 10);
1035 ui = strtok (NULL, ".");
1038 tmp[1] = strtol (ui, &end, 10);
1040 ui = strtok (NULL, ".");
1043 tmp[2] = strtol (ui, &end, 10);
1045 ui = strtok (NULL, ".");
1048 tmp[3] = strtol (ui, &end, 10);
1050 data->ip_daddr[0] = tmp[0];
1051 data->ip_daddr[1] = tmp[1];
1052 data->ip_daddr[2] = tmp[2];
1053 data->ip_daddr[3] = tmp[3];
1055 ui = strtok (hw, ":");
1058 tmp[0] = strtol (ui, &end, 16);
1059 ui = strtok (NULL, ":");
1062 tmp[1] = strtol (ui, &end, 16);
1063 ui = strtok (NULL, ":");
1066 tmp[2] = strtol (ui, &end, 16);
1067 ui = strtok (NULL, ":");
1070 tmp[3] = strtol (ui, &end, 16);
1071 ui = strtok (NULL, ":");
1074 tmp[4] = strtol (ui, &end, 16);
1075 ui = strtok (NULL, ":");
1078 tmp[5] = strtol (ui, &end, 16);
1080 data->hw_daddr[0] = tmp[0];
1081 data->hw_daddr[1] = tmp[1];
1082 data->hw_daddr[2] = tmp[2];
1083 data->hw_daddr[3] = tmp[3];
1084 data->hw_daddr[4] = tmp[4];
1085 data->hw_daddr[5] = tmp[5];
1087 pthread_create (&thread[index], NULL, icmpr_send_proc, (void *) data);
1091 INFO ("Invalid input\n");
1096 user_input_handler ()
1099 char *in = (char *) malloc (256);
1100 char *ui = fgets (in, 256, stdin);
1105 ui = strtok (in, " ");
1106 if (strncmp (ui, "exit", 4) == 0)
1110 exit (EXIT_SUCCESS);
1112 else if (strncmp (ui, "help", 4) == 0)
1117 else if (strncmp (ui, "conn", 4) == 0)
1119 ui = strtok (NULL, " ");
1121 a = strtol (ui, &end, 10);
1124 INFO ("expected id");
1127 ui = strtok (NULL, " ");
1129 icmpr_memif_create (a, strtol (ui, &end, 10), strtok (NULL, " "));
1131 INFO ("expected mode <0|1>");
1134 else if (strncmp (ui, "del", 3) == 0)
1136 ui = strtok (NULL, " ");
1138 icmpr_memif_delete (strtol (ui, &end, 10));
1140 INFO ("expected id");
1143 else if (strncmp (ui, "show", 4) == 0)
1145 print_memif_details ();
1148 else if (strncmp (ui, "ip-set", 6) == 0)
1150 ui = strtok (NULL, " ");
1152 icmpr_set_ip (strtol (ui, &end, 10), strtok (NULL, " "));
1154 INFO ("expected id");
1157 else if (strncmp (ui, "rx-mode", 7) == 0)
1159 ui = strtok (NULL, " ");
1161 a = strtol (ui, &end, 10);
1164 INFO ("expected id");
1167 ui = strtok (NULL, " ");
1169 icmpr_set_rx_mode (a, strtol (ui, &end, 10), strtok (NULL, " "));
1171 INFO ("expected qid");
1174 else if (strncmp (ui, "sh-count", 8) == 0)
1176 icmpr_print_counters ();
1178 else if (strncmp (ui, "cl-count", 8) == 0)
1180 icmpr_reset_counters ();
1182 else if (strncmp (ui, "send", 4) == 0)
1184 ui = strtok (NULL, " ");
1186 a = strtol (ui, &end, 10);
1189 INFO ("expected id");
1192 ui = strtok (NULL, " ");
1194 icmpr_send (a, strtol (ui, &end, 10), strtok (NULL, " "),
1195 strtok (NULL, " "));
1197 INFO ("expected count");
1202 INFO ("unknown command: %s", ui);
1213 poll_event (int timeout)
1215 struct epoll_event evt, *e;
1216 int app_err = 0, memif_err = 0, en = 0;
1218 uint32_t events = 0;
1219 struct timespec start, end;
1220 memset (&evt, 0, sizeof (evt));
1221 evt.events = EPOLLIN | EPOLLOUT;
1223 sigemptyset (&sigset);
1224 en = epoll_pwait (epfd, &evt, 1, timeout, &sigset);
1225 /* id event polled */
1226 timespec_get (&start, TIME_UTC);
1229 DBG ("epoll_pwait: %s", strerror (errno));
1234 /* this app does not use any other file descriptors than stds and memif control fds */
1235 if (evt.data.fd > 2)
1237 /* event of memif control fd */
1238 /* convert epolle events to memif events */
1239 if (evt.events & EPOLLIN)
1240 events |= MEMIF_FD_EVENT_READ;
1241 if (evt.events & EPOLLOUT)
1242 events |= MEMIF_FD_EVENT_WRITE;
1243 if (evt.events & EPOLLERR)
1244 events |= MEMIF_FD_EVENT_ERROR;
1245 memif_err = memif_control_fd_handler (evt.data.fd, events);
1246 if (memif_err != MEMIF_ERR_SUCCESS)
1247 INFO ("memif_control_fd_handler: %s", memif_strerror (memif_err));
1249 else if (evt.data.fd == 0)
1251 app_err = user_input_handler ();
1255 DBG ("unexpected event at memif_epfd. fd %d", evt.data.fd);
1259 timespec_get (&end, TIME_UTC);
1260 LOG ("interrupt: %ld", end.tv_nsec - start.tv_nsec);
1262 if ((app_err < 0) || (memif_err < 0))
1265 DBG ("user input handler error");
1267 DBG ("memif control fd handler error");
1277 epfd = epoll_create (1);
1278 add_epoll_fd (0, EPOLLIN);
1284 out_fd = open (LOG_FILE, O_WRONLY | O_CREAT, S_IRWXO);
1286 INFO ("Error opening log file: %s", strerror (errno));
1287 #endif /* LOG_FILE */
1289 /* initialize memory interface */
1291 /* if valid callback is passed as argument, fd event polling will be done by user
1292 all file descriptors and events will be passed to user in this callback */
1293 /* if callback is set to NULL libmemif will handle fd event polling */
1294 err = memif_init (control_fd_update, APP_NAME, NULL, NULL);
1295 if (err != MEMIF_ERR_SUCCESS)
1297 INFO ("memif_init: %s", memif_strerror (err));
1302 for (i = 0; i < MAX_CONNS; i++)
1304 memset (&memif_connection[i], 0, sizeof (memif_connection_t));
1313 if (poll_event (-1) < 0)
1315 DBG ("poll_event error!");