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>
55 #include <icmp_proto.h>
57 #define APP_NAME "ICMP_Responder"
58 #define IF_NAME "memif_connection"
62 #define DBG(...) do { \
63 printf (APP_NAME":%s:%d: ", __func__, __LINE__); \
64 printf (__VA_ARGS__); \
67 #define LOG(...) do { \
69 dprintf (out_fd, __VA_ARGS__); \
70 dprintf (out_fd, "\n"); \
73 #define LOG_FILE "/tmp/memif_time_test.txt"
79 #define INFO(...) do { \
80 printf ("INFO: "__VA_ARGS__); \
85 /* maximum tx/rx memif buffers */
86 #define MAX_MEMIF_BUFS 256
96 /* memif conenction handle */
97 memif_conn_handle_t conn;
99 memif_buffer_t *tx_bufs;
100 /* allocated tx buffers counter */
101 /* number of tx buffers pointing to shared memory */
104 memif_buffer_t *rx_bufs;
105 /* allcoated rx buffers counter */
106 /* number of rx buffers pointing to shared memory */
108 /* interface ip address */
111 uint64_t tx_counter, rx_counter, tx_err_counter;
112 uint64_t t_sec, t_nsec;
113 } memif_connection_t;
121 } icmpr_thread_data_t;
123 memif_connection_t memif_connection[MAX_CONNS];
124 icmpr_thread_data_t icmpr_thread_data[MAX_CONNS];
125 pthread_t thread[MAX_CONNS];
128 /* print details for all memif connections */
130 print_memif_details ()
137 buf = malloc (buflen);
138 printf ("MEMIF DETAILS\n");
139 printf ("==============================\n");
140 for (i = 0; i < MAX_CONNS; i++)
142 memif_connection_t *c = &memif_connection[i];
144 memset (&md, 0, sizeof (md));
145 memset (buf, 0, buflen);
147 err = memif_get_details (c->conn, &md, buf, buflen);
148 if (err != MEMIF_ERR_SUCCESS)
150 if (err != MEMIF_ERR_NOCONN)
151 INFO ("%s", memif_strerror (err));
155 printf ("interface index: %d\n", i);
157 printf ("\tinterface ip: %u.%u.%u.%u\n",
158 c->ip_addr[0], c->ip_addr[1], c->ip_addr[2], c->ip_addr[3]);
159 printf ("\tinterface name: %s\n", (char *) md.if_name);
160 printf ("\tapp name: %s\n", (char *) md.inst_name);
161 printf ("\tremote interface name: %s\n", (char *) md.remote_if_name);
162 printf ("\tremote app name: %s\n", (char *) md.remote_inst_name);
163 printf ("\tid: %u\n", md.id);
164 printf ("\tsecret: %s\n", (char *) md.secret);
174 printf ("ethernet\n");
180 printf ("punt/inject\n");
183 printf ("unknown\n");
186 printf ("\tsocket filename: %s\n", (char *) md.socket_filename);
187 printf ("\trx queues:\n");
188 for (e = 0; e < md.rx_queues_num; e++)
190 printf ("\t\tqueue id: %u\n", md.rx_queues[e].qid);
191 printf ("\t\tring size: %u\n", md.rx_queues[e].ring_size);
192 printf ("\t\tring rx mode: %s\n",
193 md.rx_queues[e].flags ? "polling" : "interrupt");
194 printf ("\t\tring head: %u\n", md.rx_queues[e].head);
195 printf ("\t\tring tail: %u\n", md.rx_queues[e].tail);
196 printf ("\t\tbuffer size: %u\n", md.rx_queues[e].buffer_size);
198 printf ("\ttx queues:\n");
199 for (e = 0; e < md.tx_queues_num; e++)
201 printf ("\t\tqueue id: %u\n", md.tx_queues[e].qid);
202 printf ("\t\tring size: %u\n", md.tx_queues[e].ring_size);
203 printf ("\t\tring rx mode: %s\n",
204 md.tx_queues[e].flags ? "polling" : "interrupt");
205 printf ("\t\tring head: %u\n", md.tx_queues[e].head);
206 printf ("\t\tring tail: %u\n", md.tx_queues[e].tail);
207 printf ("\t\tbuffer size: %u\n", md.tx_queues[e].buffer_size);
219 add_epoll_fd (int fd, uint32_t events)
223 DBG ("invalid fd %d", fd);
226 struct epoll_event evt;
227 memset (&evt, 0, sizeof (evt));
230 if (epoll_ctl (epfd, EPOLL_CTL_ADD, fd, &evt) < 0)
232 DBG ("epoll_ctl: %s fd %d", strerror (errno), fd);
235 DBG ("fd %d added to epoll", fd);
240 mod_epoll_fd (int fd, uint32_t events)
244 DBG ("invalid fd %d", fd);
247 struct epoll_event evt;
248 memset (&evt, 0, sizeof (evt));
251 if (epoll_ctl (epfd, EPOLL_CTL_MOD, fd, &evt) < 0)
253 DBG ("epoll_ctl: %s fd %d", strerror (errno), fd);
256 DBG ("fd %d moddified on epoll", fd);
261 del_epoll_fd (int fd)
265 DBG ("invalid fd %d", fd);
268 struct epoll_event evt;
269 memset (&evt, 0, sizeof (evt));
270 if (epoll_ctl (epfd, EPOLL_CTL_DEL, fd, &evt) < 0)
272 DBG ("epoll_ctl: %s fd %d", strerror (errno), fd);
275 DBG ("fd %d removed from epoll", fd);
279 /* informs user about connected status. private_ctx is used by user to identify connection
280 (multiple connections WIP) */
282 on_connect (memif_conn_handle_t conn, void *private_ctx)
284 INFO ("memif connected!");
289 /* informs user about disconnected status. private_ctx is used by user to identify connection
290 (multiple connections WIP) */
292 on_disconnect (memif_conn_handle_t conn, void *private_ctx)
294 INFO ("memif disconnected!");
298 /* user needs to watch new fd or stop watching fd that is about to be closed.
299 control fd will be modified during connection establishment to minimize CPU usage */
301 control_fd_update (int fd, uint8_t events)
303 /* convert memif event definitions to epoll events */
304 if (events & MEMIF_FD_EVENT_DEL)
305 return del_epoll_fd (fd);
308 if (events & MEMIF_FD_EVENT_READ)
310 if (events & MEMIF_FD_EVENT_WRITE)
313 if (events & MEMIF_FD_EVENT_MOD)
314 return mod_epoll_fd (fd, evt);
316 return add_epoll_fd (fd, evt);
320 icmpr_buffer_alloc (long index, long n, uint16_t * r, uint16_t i,
323 memif_connection_t *c = &memif_connection[index];
325 /* set data pointer to shared memory and set buffer_len to shared mmeory buffer len */
326 err = memif_buffer_alloc (c->conn, qid, c->tx_bufs + i, n, r, 128);
327 if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
329 INFO ("memif_buffer_alloc: %s", memif_strerror (err));
333 DBG ("allocated %d/%ld buffers, %u free buffers", *r, n,
334 MAX_MEMIF_BUFS - c->tx_buf_num);
339 icmpr_tx_burst (long index, uint16_t qid)
341 memif_connection_t *c = &memif_connection[index];
344 /* inform peer memif interface about data in shared memory buffers */
345 /* mark memif buffers as free */
346 err = memif_tx_burst (c->conn, qid, c->tx_bufs, c->tx_buf_num, &r);
347 if (err != MEMIF_ERR_SUCCESS)
348 INFO ("memif_tx_burst: %s", memif_strerror (err));
354 /* called when event is polled on interrupt file descriptor.
355 there are packets in shared memory ready to be received */
357 on_interrupt (memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
359 long index = *((long *) private_ctx);
360 memif_connection_t *c = &memif_connection[index];
361 if (c->index != index)
363 INFO ("invalid context: %ld/%u", index, c->index);
367 int err = MEMIF_ERR_SUCCESS, ret_val;
368 uint16_t rx = 0, tx = 0;
370 int i = 0; /* rx buffer iterator */
371 int j = 0; /* tx bufferiterator */
373 /* loop while there are packets in shm */
376 /* receive data from shared memory buffers */
377 err = memif_rx_burst (c->conn, qid, c->rx_bufs, MAX_MEMIF_BUFS, &rx);
380 if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF))
382 INFO ("memif_rx_burst: %s", memif_strerror (err));
387 err = memif_buffer_alloc (c->conn, qid, c->tx_bufs, rx, &tx, 128);
388 if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
390 INFO ("memif_buffer_alloc: %s", memif_strerror (err));
394 c->tx_err_counter += rx - tx;
398 resolve_packet ((void *) (c->rx_bufs + i)->data,
399 (c->rx_bufs + i)->len,
400 (void *) (c->tx_bufs + j)->data,
401 &(c->tx_bufs + j)->len, c->ip_addr);
407 err = memif_refill_queue (c->conn, qid, rx);
408 if (err != MEMIF_ERR_SUCCESS)
409 INFO ("memif_buffer_free: %s", memif_strerror (err));
412 DBG ("freed %d buffers. %u/%u alloc/free buffers",
413 rx, rx, MAX_MEMIF_BUFS - rx);
415 err = memif_tx_burst (c->conn, qid, c->tx_bufs, j, &tx);
416 if (err != MEMIF_ERR_SUCCESS)
418 INFO ("memif_tx_burst: %s", memif_strerror (err));
424 while (ret_val == MEMIF_ERR_NOBUF);
429 err = memif_refill_queue (c->conn, qid, rx);
430 if (err != MEMIF_ERR_SUCCESS)
431 INFO ("memif_buffer_free: %s", memif_strerror (err));
433 DBG ("freed %d buffers. %u/%u alloc/free buffers",
434 fb, c->rx_buf_num, MAX_MEMIF_BUFS - c->rx_buf_num);
438 /* called when event is polled on interrupt file descriptor.
439 there are packets in shared memory ready to be received */
440 /* dev test modification: loop until TX == RX (don't drop buffers) */
442 on_interrupt0 (memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
444 long index = *((long *) private_ctx);
445 memif_connection_t *c = &memif_connection[index];
446 if (c->index != index)
448 INFO ("invalid context: %ld/%u", index, c->index);
452 int err = MEMIF_ERR_SUCCESS, ret_val;
453 uint16_t rx = 0, tx = 0;
455 int i; /* rx buffer iterator */
456 int j; /* tx bufferiterator */
457 int prev_i; /* first allocated rx buffer */
459 /* loop while there are packets in shm */
462 /* receive data from shared memory buffers */
463 err = memif_rx_burst (c->conn, qid, c->rx_bufs, MAX_MEMIF_BUFS, &rx);
466 if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF))
468 INFO ("memif_rx_burst: %s", memif_strerror (err));
474 /* loop while there are RX buffers to be processed */
478 /* try to alloc required number of buffers buffers */
479 err = memif_buffer_alloc (c->conn, qid, c->tx_bufs, rx, &tx, 128);
480 if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
482 INFO ("memif_buffer_alloc: %s", memif_strerror (err));
492 resolve_packet ((void *) (c->rx_bufs + i)->data,
493 (c->rx_bufs + i)->len,
494 (void *) (c->tx_bufs + j)->data,
495 &(c->tx_bufs + j)->len, c->ip_addr);
496 resolve_packet ((void *) (c->rx_bufs + i + 1)->data,
497 (c->rx_bufs + i + 1)->len,
498 (void *) (c->tx_bufs + j + 1)->data,
499 &(c->tx_bufs + j + 1)->len, c->ip_addr);
505 resolve_packet ((void *) (c->rx_bufs + i)->data,
506 (c->rx_bufs + i)->len,
507 (void *) (c->tx_bufs + j)->data,
508 &(c->tx_bufs + j)->len, c->ip_addr);
513 /* mark memif buffers and shared memory buffers as free */
514 /* free processed buffers */
515 err = memif_refill_queue (c->conn, qid, j);
516 if (err != MEMIF_ERR_SUCCESS)
517 INFO ("memif_buffer_free: %s", memif_strerror (err));
521 DBG ("freed %d buffers. %u/%u alloc/free buffers",
522 fb, rx, MAX_MEMIF_BUFS - rx);
524 /* transmit allocated buffers */
525 err = memif_tx_burst (c->conn, qid, c->tx_bufs, j, &tx);
526 if (err != MEMIF_ERR_SUCCESS)
528 INFO ("memif_tx_burst: %s", memif_strerror (err));
536 while (ret_val == MEMIF_ERR_NOBUF);
541 err = memif_refill_queue (c->conn, qid, rx);
542 if (err != MEMIF_ERR_SUCCESS)
543 INFO ("memif_buffer_free: %s", memif_strerror (err));
545 DBG ("freed %d buffers. %u/%u alloc/free buffers",
546 fb, c->rx_buf_num, MAX_MEMIF_BUFS - c->rx_buf_num);
550 /* called when event is polled on interrupt file descriptor.
551 there are packets in shared memory ready to be received */
552 /* dev test modification: handle only ARP requests */
554 on_interrupt1 (memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
556 long index = *((long *) private_ctx);
557 memif_connection_t *c = &memif_connection[index];
558 if (c->index != index)
560 INFO ("invalid context: %ld/%u", index, c->index);
564 int err = MEMIF_ERR_SUCCESS, ret_val;
572 /* receive data from shared memory buffers */
573 err = memif_rx_burst (c->conn, qid, c->rx_bufs, MAX_MEMIF_BUFS, &rx);
575 if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF))
577 INFO ("memif_rx_burst: %s", memif_strerror (err));
583 for (i = 0; i < rx; i++)
585 if (((struct ether_header *) (c->rx_bufs + i)->data)->ether_type ==
588 if (icmpr_buffer_alloc (c->index, 1, &tx, i, qid) < 0)
590 resolve_packet ((void *) (c->rx_bufs + i)->data,
591 (c->rx_bufs + i)->len,
592 (void *) (c->tx_bufs + i)->data,
593 &(c->tx_bufs + i)->len, c->ip_addr);
594 icmpr_tx_burst (c->index, qid);
598 err = memif_refill_queue (c->conn, qid, rx);
599 if (err != MEMIF_ERR_SUCCESS)
600 INFO ("memif_buffer_free: %s", memif_strerror (err));
605 while (ret_val == MEMIF_ERR_NOBUF);
610 err = memif_refill_queue (c->conn, qid, rx);
611 if (err != MEMIF_ERR_SUCCESS)
612 INFO ("memif_buffer_free: %s", memif_strerror (err));
614 DBG ("freed %d buffers. %u/%u alloc/free buffers",
615 fb, c->rx_buf_num, MAX_MEMIF_BUFS - c->rx_buf_num);
620 icmpr_memif_create (long index, long mode, char *s)
622 if (index >= MAX_CONNS)
624 INFO ("connection array overflow");
629 INFO ("don't even try...");
632 memif_connection_t *c = &memif_connection[index];
634 /* setting memif connection arguments */
635 memif_conn_args_t args;
637 memset (&args, 0, sizeof (args));
638 args.is_master = mode;
639 args.log2_ring_size = 11;
640 args.buffer_size = 2048;
641 args.num_s2m_rings = 1;
642 args.num_m2s_rings = 1;
643 strncpy ((char *) args.interface_name, IF_NAME, strlen (IF_NAME));
645 /* socket filename is not specified, because this app is supposed to
646 connect to VPP over memif. so default socket filename will be used */
647 /* default socketfile = /run/vpp/memif.sock */
649 args.interface_id = index;
650 /* last argument for memif_create (void * private_ctx) is used by user
651 to identify connection. this context is returned with callbacks */
653 /* default interrupt */
656 err = memif_create (&c->conn,
657 &args, on_connect, on_disconnect, on_interrupt,
659 if (err != MEMIF_ERR_SUCCESS)
661 INFO ("memif_create: %s", memif_strerror (err));
667 if (strncmp (s, "0", 1) == 0)
669 err = memif_create (&c->conn,
670 &args, on_connect, on_disconnect, on_interrupt0,
672 if (err != MEMIF_ERR_SUCCESS)
674 INFO ("memif_create: %s", memif_strerror (err));
678 else if (strncmp (s, "1", 1) == 0)
680 err = memif_create (&c->conn,
681 &args, on_connect, on_disconnect, on_interrupt1,
683 if (err != MEMIF_ERR_SUCCESS)
685 INFO ("memif_create: %s", memif_strerror (err));
691 INFO ("Unknown interrupt descriptor");
697 /* alloc memif buffers */
700 (memif_buffer_t *) malloc (sizeof (memif_buffer_t) * MAX_MEMIF_BUFS);
703 (memif_buffer_t *) malloc (sizeof (memif_buffer_t) * MAX_MEMIF_BUFS);
707 c->ip_addr[2] = c->index + 1;
710 c->seq = c->tx_err_counter = c->tx_counter = c->rx_counter = 0;
717 icmpr_memif_delete (long index)
719 if (index >= MAX_CONNS)
721 INFO ("connection array overflow");
726 INFO ("don't even try...");
729 memif_connection_t *c = &memif_connection[index];
741 /* disconenct then delete memif connection */
742 err = memif_delete (&c->conn);
743 if (err != MEMIF_ERR_SUCCESS)
744 INFO ("memif_delete: %s", memif_strerror (err));
746 INFO ("memif delete fail");
753 printf ("LIBMEMIF EXAMPLE APP: %s", APP_NAME);
758 printf ("==============================\n");
759 printf ("libmemif version: %s", LIBMEMIF_VERSION);
764 printf ("memif version: %d\n", memif_get_version ());
765 printf ("commands:\n");
766 printf ("\thelp - prints this help\n");
767 printf ("\texit - exit app\n");
769 ("\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");
770 printf ("\tdel <index> - delete memif\n");
771 printf ("\tshow - show connection details\n");
772 printf ("\tip-set <index> <ip-addr> - set interface ip address\n");
774 ("\trx-mode <index> <qid> <polling|interrupt> - set queue rx mode\n");
775 printf ("\tsh-count - print counters\n");
776 printf ("\tcl-count - clear counters\n");
777 printf ("\tsend <index> <tx> <ip> <mac> - send icmp\n");
783 /* application cleanup */
789 for (i = 0; i < MAX_CONNS; i++)
791 memif_connection_t *c = &memif_connection[i];
793 icmpr_memif_delete (i);
796 err = memif_cleanup ();
797 if (err != MEMIF_ERR_SUCCESS)
798 INFO ("memif_delete: %s", memif_strerror (err));
804 icmpr_set_ip (long index, char *ip)
806 if (index >= MAX_CONNS)
808 INFO ("connection array overflow");
813 INFO ("don't even try...");
816 memif_connection_t *c = &memif_connection[index];
819 INFO ("no connection at index %ld", index);
826 ui = strtok (ip, ".");
829 tmp[0] = strtol (ui, &end, 10);
831 ui = strtok (NULL, ".");
834 tmp[1] = strtol (ui, &end, 10);
836 ui = strtok (NULL, ".");
839 tmp[2] = strtol (ui, &end, 10);
841 ui = strtok (NULL, ".");
844 tmp[3] = strtol (ui, &end, 10);
846 c->ip_addr[0] = tmp[0];
847 c->ip_addr[1] = tmp[1];
848 c->ip_addr[2] = tmp[2];
849 c->ip_addr[3] = tmp[3];
851 INFO ("memif %ld ip address set to %u.%u.%u.%u",
852 index, c->ip_addr[0], c->ip_addr[1], c->ip_addr[2], c->ip_addr[3]);
857 INFO ("invalid ip address");
862 icmpr_set_rx_mode (long index, long qid, char *mode)
864 if (index >= MAX_CONNS)
866 INFO ("connection array overflow");
871 INFO ("don't even try...");
874 memif_connection_t *c = &memif_connection[index];
878 INFO ("no connection at index %ld", index);
882 if (strncmp (mode, "interrupt", 9) == 0)
884 memif_set_rx_mode (c->conn, MEMIF_RX_MODE_INTERRUPT, qid);
887 else if (strncmp (mode, "polling", 7) == 0)
889 memif_set_rx_mode (c->conn, MEMIF_RX_MODE_POLLING, qid);
892 INFO ("expected rx mode <interrupt|polling>");
897 icmpr_print_counters ()
900 for (i = 0; i < MAX_CONNS; i++)
902 memif_connection_t *c = &memif_connection[i];
905 printf ("===============================\n");
906 printf ("interface index: %d\n", c->index);
907 printf ("\trx: %lu\n", c->rx_counter);
908 printf ("\ttx: %lu\n", c->tx_counter);
909 printf ("\ttx_err: %lu\n", c->tx_err_counter);
910 printf ("\tts: %lus %luns\n", c->t_sec, c->t_nsec);
915 icmpr_reset_counters ()
918 for (i = 0; i < MAX_CONNS; i++)
920 memif_connection_t *c = &memif_connection[i];
923 c->t_sec = c->t_nsec = c->tx_err_counter = c->tx_counter =
929 icmpr_send_proc (void *data)
931 icmpr_thread_data_t *d = (icmpr_thread_data_t *) data;
932 int index = d->index;
933 uint64_t count = d->packet_num;
934 memif_connection_t *c = &memif_connection[index];
937 INFO ("No connection at index %d. Thread exiting...\n", index);
941 int err = MEMIF_ERR_SUCCESS;
943 struct timespec start, end;
944 memset (&start, 0, sizeof (start));
945 memset (&end, 0, sizeof (end));
947 timespec_get (&start, TIME_UTC);
951 err = memif_buffer_alloc (c->conn, 0, c->tx_bufs,
953 count ? count : MAX_MEMIF_BUFS, &tx, 128);
954 if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
956 INFO ("memif_buffer_alloc: %s Thread exiting...\n",
957 memif_strerror (err));
966 generate_packet ((void *) c->tx_bufs[i].data,
967 &c->tx_bufs[i].len, c->ip_addr,
968 d->ip_daddr, d->hw_daddr, seq++);
969 generate_packet ((void *) c->tx_bufs[i + 1].data,
970 &c->tx_bufs[i + 1].len, c->ip_addr,
971 d->ip_daddr, d->hw_daddr, seq++);
975 generate_packet ((void *) c->tx_bufs[i].data,
976 &c->tx_bufs[i].len, c->ip_addr,
977 d->ip_daddr, d->hw_daddr, seq++);
981 err = memif_tx_burst (c->conn, 0, c->tx_bufs, c->tx_buf_num, &tx);
982 if (err != MEMIF_ERR_SUCCESS)
984 INFO ("memif_tx_burst: %s Thread exiting...\n",
985 memif_strerror (err));
992 timespec_get (&end, TIME_UTC);
993 INFO ("Pakcet sequence finished!");
994 INFO ("Seq len: %u", seq);
995 uint64_t t1 = end.tv_sec - start.tv_sec;
997 if (end.tv_nsec > start.tv_nsec)
999 t2 = end.tv_nsec - start.tv_nsec;
1003 t2 = start.tv_nsec - end.tv_nsec;
1008 INFO ("Seq time: %lus %luns", t1, t2);
1012 INFO ("Average pps: %f", tmp);
1013 INFO ("Thread exiting...");
1014 pthread_exit (NULL);
1018 icmpr_send (long index, long packet_num, char *hw, char *ip)
1020 memif_connection_t *c = &memif_connection[index];
1024 if (c->conn == NULL)
1027 icmpr_thread_data_t *data = &icmpr_thread_data[index];
1028 data->index = index;
1029 data->packet_num = packet_num;
1030 INFO ("PN: %lu", data->packet_num);
1031 printf ("%s\n", ip);
1032 printf ("%s\n", hw);
1034 ui = strtok (ip, ".");
1037 tmp[0] = strtol (ui, &end, 10);
1039 ui = strtok (NULL, ".");
1042 tmp[1] = strtol (ui, &end, 10);
1044 ui = strtok (NULL, ".");
1047 tmp[2] = strtol (ui, &end, 10);
1049 ui = strtok (NULL, ".");
1052 tmp[3] = strtol (ui, &end, 10);
1054 data->ip_daddr[0] = tmp[0];
1055 data->ip_daddr[1] = tmp[1];
1056 data->ip_daddr[2] = tmp[2];
1057 data->ip_daddr[3] = tmp[3];
1059 ui = strtok (hw, ":");
1062 tmp[0] = strtol (ui, &end, 16);
1063 ui = strtok (NULL, ":");
1066 tmp[1] = strtol (ui, &end, 16);
1067 ui = strtok (NULL, ":");
1070 tmp[2] = strtol (ui, &end, 16);
1071 ui = strtok (NULL, ":");
1074 tmp[3] = strtol (ui, &end, 16);
1075 ui = strtok (NULL, ":");
1078 tmp[4] = strtol (ui, &end, 16);
1079 ui = strtok (NULL, ":");
1082 tmp[5] = strtol (ui, &end, 16);
1084 data->hw_daddr[0] = tmp[0];
1085 data->hw_daddr[1] = tmp[1];
1086 data->hw_daddr[2] = tmp[2];
1087 data->hw_daddr[3] = tmp[3];
1088 data->hw_daddr[4] = tmp[4];
1089 data->hw_daddr[5] = tmp[5];
1091 pthread_create (&thread[index], NULL, icmpr_send_proc, (void *) data);
1095 INFO ("Invalid input\n");
1100 user_input_handler ()
1103 char *in = (char *) malloc (256);
1104 char *ui = fgets (in, 256, stdin);
1109 ui = strtok (in, " ");
1110 if (strncmp (ui, "exit", 4) == 0)
1114 exit (EXIT_SUCCESS);
1116 else if (strncmp (ui, "help", 4) == 0)
1121 else if (strncmp (ui, "conn", 4) == 0)
1123 ui = strtok (NULL, " ");
1125 a = strtol (ui, &end, 10);
1128 INFO ("expected id");
1131 ui = strtok (NULL, " ");
1133 icmpr_memif_create (a, strtol (ui, &end, 10), strtok (NULL, " "));
1135 INFO ("expected mode <0|1>");
1138 else if (strncmp (ui, "del", 3) == 0)
1140 ui = strtok (NULL, " ");
1142 icmpr_memif_delete (strtol (ui, &end, 10));
1144 INFO ("expected id");
1147 else if (strncmp (ui, "show", 4) == 0)
1149 print_memif_details ();
1152 else if (strncmp (ui, "ip-set", 6) == 0)
1154 ui = strtok (NULL, " ");
1156 icmpr_set_ip (strtol (ui, &end, 10), strtok (NULL, " "));
1158 INFO ("expected id");
1161 else if (strncmp (ui, "rx-mode", 7) == 0)
1163 ui = strtok (NULL, " ");
1165 a = strtol (ui, &end, 10);
1168 INFO ("expected id");
1171 ui = strtok (NULL, " ");
1173 icmpr_set_rx_mode (a, strtol (ui, &end, 10), strtok (NULL, " "));
1175 INFO ("expected qid");
1178 else if (strncmp (ui, "sh-count", 8) == 0)
1180 icmpr_print_counters ();
1182 else if (strncmp (ui, "cl-count", 8) == 0)
1184 icmpr_reset_counters ();
1186 else if (strncmp (ui, "send", 4) == 0)
1188 ui = strtok (NULL, " ");
1190 a = strtol (ui, &end, 10);
1193 INFO ("expected id");
1196 ui = strtok (NULL, " ");
1198 icmpr_send (a, strtol (ui, &end, 10), strtok (NULL, " "),
1199 strtok (NULL, " "));
1201 INFO ("expected count");
1206 INFO ("unknown command: %s", ui);
1217 poll_event (int timeout)
1219 struct epoll_event evt, *e;
1220 int app_err = 0, memif_err = 0, en = 0;
1222 uint32_t events = 0;
1223 struct timespec start, end;
1224 memset (&evt, 0, sizeof (evt));
1225 evt.events = EPOLLIN | EPOLLOUT;
1227 sigemptyset (&sigset);
1228 en = epoll_pwait (epfd, &evt, 1, timeout, &sigset);
1229 /* id event polled */
1230 timespec_get (&start, TIME_UTC);
1233 DBG ("epoll_pwait: %s", strerror (errno));
1238 /* this app does not use any other file descriptors than stds and memif control fds */
1239 if (evt.data.fd > 2)
1241 /* event of memif control fd */
1242 /* convert epolle events to memif events */
1243 if (evt.events & EPOLLIN)
1244 events |= MEMIF_FD_EVENT_READ;
1245 if (evt.events & EPOLLOUT)
1246 events |= MEMIF_FD_EVENT_WRITE;
1247 if (evt.events & EPOLLERR)
1248 events |= MEMIF_FD_EVENT_ERROR;
1249 memif_err = memif_control_fd_handler (evt.data.fd, events);
1250 if (memif_err != MEMIF_ERR_SUCCESS)
1251 INFO ("memif_control_fd_handler: %s", memif_strerror (memif_err));
1253 else if (evt.data.fd == 0)
1255 app_err = user_input_handler ();
1259 DBG ("unexpected event at memif_epfd. fd %d", evt.data.fd);
1263 timespec_get (&end, TIME_UTC);
1264 LOG ("interrupt: %ld", end.tv_nsec - start.tv_nsec);
1266 if ((app_err < 0) || (memif_err < 0))
1269 DBG ("user input handler error");
1271 DBG ("memif control fd handler error");
1281 epfd = epoll_create (1);
1282 add_epoll_fd (0, EPOLLIN);
1288 out_fd = open (LOG_FILE, O_WRONLY | O_CREAT, S_IRWXO);
1290 INFO ("Error opening log file: %s", strerror (errno));
1291 #endif /* LOG_FILE */
1293 /* initialize memory interface */
1295 /* if valid callback is passed as argument, fd event polling will be done by user
1296 all file descriptors and events will be passed to user in this callback */
1297 /* if callback is set to NULL libmemif will handle fd event polling */
1298 err = memif_init (control_fd_update, APP_NAME, NULL, NULL);
1299 if (err != MEMIF_ERR_SUCCESS)
1301 INFO ("memif_init: %s", memif_strerror (err));
1306 for (i = 0; i < MAX_CONNS; i++)
1308 memset (&memif_connection[i], 0, sizeof (memif_connection_t));
1317 if (poll_event (-1) < 0)
1319 DBG ("poll_event error!");