+++ /dev/null
-/*
- *------------------------------------------------------------------
- * Copyright (c) 2017 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *------------------------------------------------------------------
- */
-
-#include <stdlib.h>
-#include <stdint.h>
-#include <net/if.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#include <sys/ioctl.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <sys/uio.h>
-#include <sys/mman.h>
-#include <sys/prctl.h>
-#include <inttypes.h>
-#include <string.h>
-#include <stdio.h>
-#include <netdb.h>
-#include <linux/ip.h>
-#include <linux/icmp.h>
-#include <arpa/inet.h>
-#include <stdlib.h>
-#include <netinet/if_ether.h>
-#include <net/if_arp.h>
-#include <asm/byteorder.h>
-#include <byteswap.h>
-#include <string.h>
-#include <sys/epoll.h>
-#include <errno.h>
-#include <unistd.h>
-#include <signal.h>
-#include <pthread.h>
-
-#include <time.h>
-
-#ifndef TIME_UTC
-#define TIME_UTC 1
-#endif
-
-#include <libmemif.h>
-#include <icmp_proto.h>
-
-#define APP_NAME "ICMP_Responder"
-#define IF_NAME "memif_connection"
-
-
-#ifdef ICMP_DBG
-#define DBG(...) do { \
- printf (APP_NAME":%s:%d: ", __func__, __LINE__); \
- printf (__VA_ARGS__); \
- printf ("\n"); \
- } while (0)
-#define LOG(...) do { \
- if (enable_log) { \
- dprintf (out_fd, __VA_ARGS__); \
- dprintf (out_fd, "\n"); \
- } \
- } while (0)
-#define LOG_FILE "/tmp/memif_time_test.txt"
-#else
-#define DBG(...)
-#define LOG(...)
-#endif
-
-#define INFO(...) do { \
- printf ("INFO: "__VA_ARGS__); \
- printf ("\n"); \
- } while (0)
-
-
-/* maximum tx/rx memif buffers */
-#define MAX_MEMIF_BUFS 256
-#define MAX_CONNS 50
-
-#define ICMPR_HEADROOM 64
-
-int epfd;
-int out_fd;
-uint8_t enable_log;
-
-typedef struct
-{
- uint16_t index;
- /* memif connection handle */
- memif_conn_handle_t conn;
- /* tx buffers */
- memif_buffer_t *tx_bufs;
- /* allocated tx buffers counter */
- /* number of tx buffers pointing to shared memory */
- uint16_t tx_buf_num;
- /* rx buffers */
- memif_buffer_t *rx_bufs;
- /* allocated rx buffers counter */
- /* number of rx buffers pointing to shared memory */
- uint16_t rx_buf_num;
- /* interface ip address */
- uint8_t ip_addr[4];
- uint16_t seq;
- uint64_t tx_counter, rx_counter, tx_err_counter;
- uint64_t t_sec, t_nsec;
-} memif_connection_t;
-
-typedef struct
-{
- uint16_t index;
- uint64_t packet_num;
- uint8_t ip_daddr[4];
- uint8_t hw_daddr[6];
-} icmpr_thread_data_t;
-
-memif_connection_t memif_connection[MAX_CONNS];
-icmpr_thread_data_t icmpr_thread_data[MAX_CONNS];
-pthread_t thread[MAX_CONNS];
-long ctx[MAX_CONNS];
-
-/* print details for all memif connections */
-static void
-print_memif_details ()
-{
- memif_details_t md;
- ssize_t buflen;
- char *buf;
- int err, i, e;
- buflen = 2048;
- buf = malloc (buflen);
- printf ("MEMIF DETAILS\n");
- printf ("==============================\n");
- for (i = 0; i < MAX_CONNS; i++)
- {
- memif_connection_t *c = &memif_connection[i];
-
- memset (&md, 0, sizeof (md));
- memset (buf, 0, buflen);
-
- err = memif_get_details (c->conn, &md, buf, buflen);
- if (err != MEMIF_ERR_SUCCESS)
- {
- if (err != MEMIF_ERR_NOCONN)
- INFO ("%s", memif_strerror (err));
- continue;
- }
-
- printf ("interface index: %d\n", i);
-
- printf ("\tinterface ip: %u.%u.%u.%u\n",
- c->ip_addr[0], c->ip_addr[1], c->ip_addr[2], c->ip_addr[3]);
- printf ("\tinterface name: %s\n", (char *) md.if_name);
- printf ("\tapp name: %s\n", (char *) md.inst_name);
- printf ("\tremote interface name: %s\n", (char *) md.remote_if_name);
- printf ("\tremote app name: %s\n", (char *) md.remote_inst_name);
- printf ("\tid: %u\n", md.id);
- printf ("\tsecret: %s\n", (char *) md.secret);
- printf ("\trole: ");
- if (md.role)
- printf ("slave\n");
- else
- printf ("master\n");
- printf ("\tmode: ");
- switch (md.mode)
- {
- case 0:
- printf ("ethernet\n");
- break;
- case 1:
- printf ("ip\n");
- break;
- case 2:
- printf ("punt/inject\n");
- break;
- default:
- printf ("unknown\n");
- break;
- }
- printf ("\tsocket filename: %s\n", (char *) md.socket_filename);
- printf ("\trx queues:\n");
- for (e = 0; e < md.rx_queues_num; e++)
- {
- printf ("\t\tqueue id: %u\n", md.rx_queues[e].qid);
- printf ("\t\tring size: %u\n", md.rx_queues[e].ring_size);
- printf ("\t\tring rx mode: %s\n",
- md.rx_queues[e].flags ? "polling" : "interrupt");
- printf ("\t\tring head: %u\n", md.rx_queues[e].head);
- printf ("\t\tring tail: %u\n", md.rx_queues[e].tail);
- printf ("\t\tbuffer size: %u\n", md.rx_queues[e].buffer_size);
- }
- printf ("\ttx queues:\n");
- for (e = 0; e < md.tx_queues_num; e++)
- {
- printf ("\t\tqueue id: %u\n", md.tx_queues[e].qid);
- printf ("\t\tring size: %u\n", md.tx_queues[e].ring_size);
- printf ("\t\tring rx mode: %s\n",
- md.tx_queues[e].flags ? "polling" : "interrupt");
- printf ("\t\tring head: %u\n", md.tx_queues[e].head);
- printf ("\t\tring tail: %u\n", md.tx_queues[e].tail);
- printf ("\t\tbuffer size: %u\n", md.tx_queues[e].buffer_size);
- }
- printf ("\tlink: ");
- if (md.link_up_down)
- printf ("up\n");
- else
- {
- printf ("down\n");
- printf ("\treason: %s\n", md.error);
- }
- }
- free (buf);
-}
-
-int
-add_epoll_fd (int fd, uint32_t events)
-{
- if (fd < 0)
- {
- DBG ("invalid fd %d", fd);
- return -1;
- }
- struct epoll_event evt;
- memset (&evt, 0, sizeof (evt));
- evt.events = events;
- evt.data.fd = fd;
- if (epoll_ctl (epfd, EPOLL_CTL_ADD, fd, &evt) < 0)
- {
- DBG ("epoll_ctl: %s fd %d", strerror (errno), fd);
- return -1;
- }
- DBG ("fd %d added to epoll", fd);
- return 0;
-}
-
-int
-mod_epoll_fd (int fd, uint32_t events)
-{
- if (fd < 0)
- {
- DBG ("invalid fd %d", fd);
- return -1;
- }
- struct epoll_event evt;
- memset (&evt, 0, sizeof (evt));
- evt.events = events;
- evt.data.fd = fd;
- if (epoll_ctl (epfd, EPOLL_CTL_MOD, fd, &evt) < 0)
- {
- DBG ("epoll_ctl: %s fd %d", strerror (errno), fd);
- return -1;
- }
- DBG ("fd %d modified on epoll", fd);
- return 0;
-}
-
-int
-del_epoll_fd (int fd)
-{
- if (fd < 0)
- {
- DBG ("invalid fd %d", fd);
- return -1;
- }
- struct epoll_event evt;
- memset (&evt, 0, sizeof (evt));
- if (epoll_ctl (epfd, EPOLL_CTL_DEL, fd, &evt) < 0)
- {
- DBG ("epoll_ctl: %s fd %d", strerror (errno), fd);
- return -1;
- }
- DBG ("fd %d removed from epoll", fd);
- return 0;
-}
-
-/* informs user about connected status. private_ctx is used by user to identify connection
- (multiple connections WIP) */
-int
-on_connect (memif_conn_handle_t conn, void *private_ctx)
-{
- INFO ("memif connected!");
- memif_refill_queue (conn, 0, -1, ICMPR_HEADROOM);
- enable_log = 1;
- return 0;
-}
-
-/* informs user about disconnected status. private_ctx is used by user to identify connection
- (multiple connections WIP) */
-int
-on_disconnect (memif_conn_handle_t conn, void *private_ctx)
-{
- INFO ("memif disconnected!");
- return 0;
-}
-
-/* user needs to watch new fd or stop watching fd that is about to be closed.
- control fd will be modified during connection establishment to minimize CPU usage */
-int
-control_fd_update (int fd, uint8_t events, void *ctx)
-{
- /* convert memif event definitions to epoll events */
- if (events & MEMIF_FD_EVENT_DEL)
- return del_epoll_fd (fd);
-
- uint32_t evt = 0;
- if (events & MEMIF_FD_EVENT_READ)
- evt |= EPOLLIN;
- if (events & MEMIF_FD_EVENT_WRITE)
- evt |= EPOLLOUT;
-
- if (events & MEMIF_FD_EVENT_MOD)
- return mod_epoll_fd (fd, evt);
-
- return add_epoll_fd (fd, evt);
-}
-
-int
-icmpr_buffer_alloc (long index, long n, uint16_t * r, uint16_t i,
- uint16_t qid)
-{
- memif_connection_t *c = &memif_connection[index];
- int err;
- /* set data pointer to shared memory and set buffer_len to shared memory buffer len */
- err = memif_buffer_alloc (c->conn, qid, c->tx_bufs + i, n, r, 128);
- if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
- {
- INFO ("memif_buffer_alloc: %s", memif_strerror (err));
- return -1;
- }
- c->tx_buf_num += *r;
- DBG ("allocated %d/%ld buffers, %u free buffers", *r, n,
- MAX_MEMIF_BUFS - c->tx_buf_num);
- return 0;
-}
-
-int
-icmpr_tx_burst (long index, uint16_t qid)
-{
- memif_connection_t *c = &memif_connection[index];
- int err;
- uint16_t r;
- /* inform peer memif interface about data in shared memory buffers */
- /* mark memif buffers as free */
- err = memif_tx_burst (c->conn, qid, c->tx_bufs, c->tx_buf_num, &r);
- if (err != MEMIF_ERR_SUCCESS)
- INFO ("memif_tx_burst: %s", memif_strerror (err));
- c->tx_buf_num -= r;
- c->tx_counter += r;
- return 0;
-}
-
-/* called when event is polled on interrupt file descriptor.
- there are packets in shared memory ready to be received */
-int
-on_interrupt (memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
-{
- long index = *((long *) private_ctx);
- memif_connection_t *c = &memif_connection[index];
- if (c->index != index)
- {
- INFO ("invalid context: %ld/%u", index, c->index);
- return 0;
- }
-
- int err = MEMIF_ERR_SUCCESS, ret_val;
- uint16_t rx = 0, tx = 0;
- int i = 0; /* rx buffer iterator */
- int j = 0; /* tx buffer iterator */
-
- /* loop while there are packets in shm */
- do
- {
- /* receive data from shared memory buffers */
- err = memif_rx_burst (c->conn, qid, c->rx_bufs, MAX_MEMIF_BUFS, &rx);
- ret_val = err;
- c->rx_counter += rx;
- if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF))
- {
- INFO ("memif_rx_burst: %s", memif_strerror (err));
- goto error;
- }
-
- i = 0;
- memset (c->tx_bufs, 0, sizeof (memif_buffer_t) * rx);
- err = memif_buffer_alloc (c->conn, qid, c->tx_bufs, rx, &tx, 128);
- if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
- {
- INFO ("memif_buffer_alloc: %s", memif_strerror (err));
- goto error;
- }
- j = 0;
- c->tx_err_counter += rx - tx;
-
- while (tx)
- {
- resolve_packet ((void *) (c->rx_bufs + i)->data,
- (c->rx_bufs + i)->len,
- (void *) (c->tx_bufs + j)->data,
- &(c->tx_bufs + j)->len, c->ip_addr);
- i++;
- j++;
- tx--;
- }
-
- err = memif_refill_queue (c->conn, qid, rx, ICMPR_HEADROOM);
- if (err != MEMIF_ERR_SUCCESS)
- INFO ("memif_buffer_free: %s", memif_strerror (err));
- rx -= rx;
-
- DBG ("%u/%u alloc/free buffers", rx, MAX_MEMIF_BUFS - rx);
-
- err = memif_tx_burst (c->conn, qid, c->tx_bufs, j, &tx);
- if (err != MEMIF_ERR_SUCCESS)
- {
- INFO ("memif_tx_burst: %s", memif_strerror (err));
- goto error;
- }
- c->tx_counter += tx;
-
- }
- while (ret_val == MEMIF_ERR_NOBUF);
-
- return 0;
-
-error:
- err = memif_refill_queue (c->conn, qid, rx, ICMPR_HEADROOM);
- if (err != MEMIF_ERR_SUCCESS)
- INFO ("memif_buffer_free: %s", memif_strerror (err));
- c->rx_buf_num -= rx;
- DBG ("freed %d buffers. %u/%u alloc/free buffers",
- rx, c->rx_buf_num, MAX_MEMIF_BUFS - c->rx_buf_num);
- return 0;
-}
-
-/* called when event is polled on interrupt file descriptor.
- there are packets in shared memory ready to be received */
-/* dev test modification: loop until TX == RX (don't drop buffers) */
-int
-on_interrupt0 (memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
-{
- long index = *((long *) private_ctx);
- memif_connection_t *c = &memif_connection[index];
- if (c->index != index)
- {
- INFO ("invalid context: %ld/%u", index, c->index);
- return 0;
- }
-
- int err = MEMIF_ERR_SUCCESS, ret_val;
- uint16_t rx = 0, tx = 0;
- int i; /* rx buffer iterator */
- int j; /* tx bufferiterator */
-
- /* loop while there are packets in shm */
- do
- {
- /* receive data from shared memory buffers */
- err = memif_rx_burst (c->conn, qid, c->rx_bufs, MAX_MEMIF_BUFS, &rx);
- ret_val = err;
- c->rx_counter += rx;
- if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF))
- {
- INFO ("memif_rx_burst: %s", memif_strerror (err));
- goto error;
- }
-
- i = 0;
-
- /* loop while there are RX buffers to be processed */
- while (rx)
- {
-
- /* try to alloc required number of buffers buffers */
- err = memif_buffer_alloc (c->conn, qid, c->tx_bufs, rx, &tx, 128);
- if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
- {
- INFO ("memif_buffer_alloc: %s", memif_strerror (err));
- goto error;
- }
- j = 0;
-
- /* process buffers */
- while (tx)
- {
- while (tx > 2)
- {
- resolve_packet ((void *) (c->rx_bufs + i)->data,
- (c->rx_bufs + i)->len,
- (void *) (c->tx_bufs + j)->data,
- &(c->tx_bufs + j)->len, c->ip_addr);
- resolve_packet ((void *) (c->rx_bufs + i + 1)->data,
- (c->rx_bufs + i + 1)->len,
- (void *) (c->tx_bufs + j + 1)->data,
- &(c->tx_bufs + j + 1)->len, c->ip_addr);
-
- i += 2;
- j += 2;
- tx -= 2;
- }
- resolve_packet ((void *) (c->rx_bufs + i)->data,
- (c->rx_bufs + i)->len,
- (void *) (c->tx_bufs + j)->data,
- &(c->tx_bufs + j)->len, c->ip_addr);
- i++;
- j++;
- tx--;
- }
- /* mark memif buffers and shared memory buffers as free */
- /* free processed buffers */
- err = memif_refill_queue (c->conn, qid, j, ICMPR_HEADROOM);
- if (err != MEMIF_ERR_SUCCESS)
- INFO ("memif_buffer_free: %s", memif_strerror (err));
- rx -= j;
-
- DBG ("freed %d buffers. %u/%u alloc/free buffers",
- rx, rx, MAX_MEMIF_BUFS - rx);
-
- /* transmit allocated buffers */
- err = memif_tx_burst (c->conn, qid, c->tx_bufs, j, &tx);
- if (err != MEMIF_ERR_SUCCESS)
- {
- INFO ("memif_tx_burst: %s", memif_strerror (err));
- goto error;
- }
- c->tx_counter += tx;
-
- }
-
- }
- while (ret_val == MEMIF_ERR_NOBUF);
-
- return 0;
-
-error:
- err = memif_refill_queue (c->conn, qid, rx, ICMPR_HEADROOM);
- if (err != MEMIF_ERR_SUCCESS)
- INFO ("memif_buffer_free: %s", memif_strerror (err));
- c->rx_buf_num -= rx;
- DBG ("freed %d buffers. %u/%u alloc/free buffers",
- rx, c->rx_buf_num, MAX_MEMIF_BUFS - c->rx_buf_num);
- return 0;
-}
-
-/* called when event is polled on interrupt file descriptor.
- there are packets in shared memory ready to be received */
-/* dev test modification: handle only ARP requests */
-int
-on_interrupt1 (memif_conn_handle_t conn, void *private_ctx, uint16_t qid)
-{
- long index = *((long *) private_ctx);
- memif_connection_t *c = &memif_connection[index];
- if (c->index != index)
- {
- INFO ("invalid context: %ld/%u", index, c->index);
- return 0;
- }
-
- int err = MEMIF_ERR_SUCCESS, ret_val;
- int i;
- uint16_t rx, tx;
-
- do
- {
- /* receive data from shared memory buffers */
- err = memif_rx_burst (c->conn, qid, c->rx_bufs, MAX_MEMIF_BUFS, &rx);
- ret_val = err;
- if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF))
- {
- INFO ("memif_rx_burst: %s", memif_strerror (err));
- goto error;
- }
- c->rx_buf_num += rx;
- c->rx_counter += rx;
-
- for (i = 0; i < rx; i++)
- {
- if (((struct ether_header *) (c->rx_bufs + i)->data)->ether_type ==
- 0x0608)
- {
- if (icmpr_buffer_alloc (c->index, 1, &tx, i, qid) < 0)
- break;
- resolve_packet ((void *) (c->rx_bufs + i)->data,
- (c->rx_bufs + i)->len,
- (void *) (c->tx_bufs + i)->data,
- &(c->tx_bufs + i)->len, c->ip_addr);
- icmpr_tx_burst (c->index, qid);
- }
- }
-
- err = memif_refill_queue (c->conn, qid, rx, ICMPR_HEADROOM);
- if (err != MEMIF_ERR_SUCCESS)
- INFO ("memif_buffer_free: %s", memif_strerror (err));
- c->rx_buf_num -= rx;
-
-
- }
- while (ret_val == MEMIF_ERR_NOBUF);
-
- return 0;
-
-error:
- err = memif_refill_queue (c->conn, qid, rx, ICMPR_HEADROOM);
- if (err != MEMIF_ERR_SUCCESS)
- INFO ("memif_buffer_free: %s", memif_strerror (err));
- c->rx_buf_num -= rx;
- DBG ("freed %d buffers. %u/%u alloc/free buffers",
- rx, c->rx_buf_num, MAX_MEMIF_BUFS - c->rx_buf_num);
- return 0;
-}
-
-int
-icmpr_memif_create (long index, long mode, char *s)
-{
- if (index >= MAX_CONNS)
- {
- INFO ("connection array overflow");
- return 0;
- }
- if (index < 0)
- {
- INFO ("don't even try...");
- return 0;
- }
- memif_connection_t *c = &memif_connection[index];
-
- /* setting memif connection arguments */
- memif_conn_args_t args;
- memset (&args, 0, sizeof (args));
- args.is_master = mode;
- args.log2_ring_size = 11;
- args.buffer_size = 2048;
- args.num_s2m_rings = 1;
- args.num_m2s_rings = 1;
- strncpy ((char *) args.interface_name, IF_NAME, strlen (IF_NAME));
- args.mode = 0;
- /* socket filename is not specified, because this app is supposed to
- connect to VPP over memif. so default socket filename will be used */
- /* default socketfile = /run/vpp/memif.sock */
-
- args.interface_id = index;
- /* last argument for memif_create (void * private_ctx) is used by user
- to identify connection. this context is returned with callbacks */
- int err;
- /* default interrupt */
- if (s == NULL)
- {
- err = memif_create (&c->conn,
- &args, on_connect, on_disconnect, on_interrupt,
- &ctx[index]);
- if (err != MEMIF_ERR_SUCCESS)
- {
- INFO ("memif_create: %s", memif_strerror (err));
- return 0;
- }
- }
- else
- {
- if (strncmp (s, "0", 1) == 0)
- {
- err = memif_create (&c->conn,
- &args, on_connect, on_disconnect, on_interrupt0,
- &ctx[index]);
- if (err != MEMIF_ERR_SUCCESS)
- {
- INFO ("memif_create: %s", memif_strerror (err));
- return 0;
- }
- }
- else if (strncmp (s, "1", 1) == 0)
- {
- err = memif_create (&c->conn,
- &args, on_connect, on_disconnect, on_interrupt1,
- &ctx[index]);
- if (err != MEMIF_ERR_SUCCESS)
- {
- INFO ("memif_create: %s", memif_strerror (err));
- return 0;
- }
- }
- else
- {
- INFO ("Unknown interrupt descriptor");
- goto done;
- }
- }
-
- c->index = index;
- /* alloc memif buffers */
- c->rx_buf_num = 0;
- c->rx_bufs =
- (memif_buffer_t *) malloc (sizeof (memif_buffer_t) * MAX_MEMIF_BUFS);
- c->tx_buf_num = 0;
- c->tx_bufs =
- (memif_buffer_t *) malloc (sizeof (memif_buffer_t) * MAX_MEMIF_BUFS);
-
- c->ip_addr[0] = 192;
- c->ip_addr[1] = 168;
- c->ip_addr[2] = c->index + 1;
- c->ip_addr[3] = 2;
-
- c->seq = c->tx_err_counter = c->tx_counter = c->rx_counter = 0;
-
-done:
- return 0;
-}
-
-int
-icmpr_memif_delete (long index)
-{
- if (index >= MAX_CONNS)
- {
- INFO ("connection array overflow");
- return 0;
- }
- if (index < 0)
- {
- INFO ("don't even try...");
- return 0;
- }
- memif_connection_t *c = &memif_connection[index];
-
- if (c->rx_bufs)
- free (c->rx_bufs);
- c->rx_bufs = NULL;
- c->rx_buf_num = 0;
- if (c->tx_bufs)
- free (c->tx_bufs);
- c->tx_bufs = NULL;
- c->tx_buf_num = 0;
-
- int err;
- /* disconnect then delete memif connection */
- err = memif_delete (&c->conn);
- if (err != MEMIF_ERR_SUCCESS)
- INFO ("memif_delete: %s", memif_strerror (err));
- if (c->conn != NULL)
- INFO ("memif delete fail");
- return 0;
-}
-
-void
-print_help ()
-{
- printf ("LIBMEMIF EXAMPLE APP: %s", APP_NAME);
-#ifdef ICMP_DBG
- printf (" (debug)");
-#endif
- printf ("\n");
- printf ("==============================\n");
- printf ("libmemif version: %s", LIBMEMIF_VERSION);
-#ifdef MEMIF_DBG
- printf (" (debug)");
-#endif
- printf ("\n");
- printf ("memif version: %d\n", memif_get_version ());
- printf ("commands:\n");
- printf ("\thelp - prints this help\n");
- printf ("\texit - exit app\n");
- printf
- ("\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");
- printf ("\tdel <index> - delete memif\n");
- printf ("\tshow - show connection details\n");
- printf ("\tip-set <index> <ip-addr> - set interface ip address\n");
- printf
- ("\trx-mode <index> <qid> <polling|interrupt> - set queue rx mode\n");
- printf ("\tsh-count - print counters\n");
- printf ("\tcl-count - clear counters\n");
- printf ("\tsend <index> <tx> <ip> <mac> - send icmp\n");
-}
-
-int
-icmpr_free ()
-{
- /* application cleanup */
- int err;
- long i;
- if (out_fd > 0)
- close (out_fd);
- out_fd = -1;
- for (i = 0; i < MAX_CONNS; i++)
- {
- memif_connection_t *c = &memif_connection[i];
- if (c->conn)
- icmpr_memif_delete (i);
- }
-
- err = memif_cleanup ();
- if (err != MEMIF_ERR_SUCCESS)
- INFO ("memif_delete: %s", memif_strerror (err));
-
- return 0;
-}
-
-int
-icmpr_set_ip (long index, char *ip)
-{
- if (index >= MAX_CONNS)
- {
- INFO ("connection array overflow");
- return 0;
- }
- if (index < 0)
- {
- INFO ("don't even try...");
- return 0;
- }
- memif_connection_t *c = &memif_connection[index];
- if (c->conn == NULL)
- {
- INFO ("no connection at index %ld", index);
- return 0;
- }
-
- char *end;
- char *ui;
- uint8_t tmp[4];
- ui = strtok (ip, ".");
- if (ui == NULL)
- goto error;
- tmp[0] = strtol (ui, &end, 10);
-
- ui = strtok (NULL, ".");
- if (ui == NULL)
- goto error;
- tmp[1] = strtol (ui, &end, 10);
-
- ui = strtok (NULL, ".");
- if (ui == NULL)
- goto error;
- tmp[2] = strtol (ui, &end, 10);
-
- ui = strtok (NULL, ".");
- if (ui == NULL)
- goto error;
- tmp[3] = strtol (ui, &end, 10);
-
- c->ip_addr[0] = tmp[0];
- c->ip_addr[1] = tmp[1];
- c->ip_addr[2] = tmp[2];
- c->ip_addr[3] = tmp[3];
-
- INFO ("memif %ld ip address set to %u.%u.%u.%u",
- index, c->ip_addr[0], c->ip_addr[1], c->ip_addr[2], c->ip_addr[3]);
-
- return 0;
-
-error:
- INFO ("invalid ip address");
- return 0;
-}
-
-int
-icmpr_set_rx_mode (long index, long qid, char *mode)
-{
- if (index >= MAX_CONNS)
- {
- INFO ("connection array overflow");
- return 0;
- }
- if (index < 0)
- {
- INFO ("don't even try...");
- return 0;
- }
- memif_connection_t *c = &memif_connection[index];
-
- if (c->conn == NULL)
- {
- INFO ("no connection at index %ld", index);
- return 0;
- }
-
- if (strncmp (mode, "interrupt", 9) == 0)
- {
- memif_set_rx_mode (c->conn, MEMIF_RX_MODE_INTERRUPT, qid);
- }
-
- else if (strncmp (mode, "polling", 7) == 0)
- {
- memif_set_rx_mode (c->conn, MEMIF_RX_MODE_POLLING, qid);
- }
- else
- INFO ("expected rx mode <interrupt|polling>");
- return 0;
-}
-
-void
-icmpr_print_counters ()
-{
- int i;
- for (i = 0; i < MAX_CONNS; i++)
- {
- memif_connection_t *c = &memif_connection[i];
- if (c->conn == NULL)
- continue;
- printf ("===============================\n");
- printf ("interface index: %d\n", c->index);
- printf ("\trx: %lu\n", c->rx_counter);
- printf ("\ttx: %lu\n", c->tx_counter);
- printf ("\ttx_err: %lu\n", c->tx_err_counter);
- printf ("\tts: %lus %luns\n", c->t_sec, c->t_nsec);
- }
-}
-
-void
-icmpr_reset_counters ()
-{
- int i;
- for (i = 0; i < MAX_CONNS; i++)
- {
- memif_connection_t *c = &memif_connection[i];
- if (c->conn == NULL)
- continue;
- c->t_sec = c->t_nsec = c->tx_err_counter = c->tx_counter =
- c->rx_counter = 0;
- }
-}
-
-void *
-icmpr_send_proc (void *data)
-{
- icmpr_thread_data_t *d = (icmpr_thread_data_t *) data;
- int index = d->index;
- uint64_t count = d->packet_num;
- memif_connection_t *c = &memif_connection[index];
- if (c->conn == NULL)
- {
- INFO ("No connection at index %d. Thread exiting...\n", index);
- pthread_exit (NULL);
- }
- uint16_t tx, i;
- int err = MEMIF_ERR_SUCCESS;
- uint32_t seq = 0;
- struct timespec start, end;
- memset (&start, 0, sizeof (start));
- memset (&end, 0, sizeof (end));
-
- timespec_get (&start, TIME_UTC);
- while (count)
- {
- i = 0;
- err = memif_buffer_alloc (c->conn, 0, c->tx_bufs,
- MAX_MEMIF_BUFS >
- count ? count : MAX_MEMIF_BUFS, &tx, 128);
- if ((err != MEMIF_ERR_SUCCESS) && (err != MEMIF_ERR_NOBUF_RING))
- {
- INFO ("memif_buffer_alloc: %s Thread exiting...\n",
- memif_strerror (err));
- pthread_exit (NULL);
- }
- c->tx_buf_num += tx;
-
- while (tx)
- {
- while (tx > 2)
- {
- generate_packet ((void *) c->tx_bufs[i].data,
- &c->tx_bufs[i].len, c->ip_addr,
- d->ip_daddr, d->hw_daddr, seq++);
- generate_packet ((void *) c->tx_bufs[i + 1].data,
- &c->tx_bufs[i + 1].len, c->ip_addr,
- d->ip_daddr, d->hw_daddr, seq++);
- i += 2;
- tx -= 2;
- }
- generate_packet ((void *) c->tx_bufs[i].data,
- &c->tx_bufs[i].len, c->ip_addr,
- d->ip_daddr, d->hw_daddr, seq++);
- i++;
- tx--;
- }
- err = memif_tx_burst (c->conn, 0, c->tx_bufs, c->tx_buf_num, &tx);
- if (err != MEMIF_ERR_SUCCESS)
- {
- INFO ("memif_tx_burst: %s Thread exiting...\n",
- memif_strerror (err));
- pthread_exit (NULL);
- }
- c->tx_buf_num -= tx;
- c->tx_counter += tx;
- count -= tx;
- }
- timespec_get (&end, TIME_UTC);
- printf ("\n\n");
- INFO ("Packet sequence finished!");
- INFO ("Seq len: %u", seq);
- uint64_t t1 = end.tv_sec - start.tv_sec;
- uint64_t t2;
- if (end.tv_nsec > start.tv_nsec)
- {
- t2 = end.tv_nsec - start.tv_nsec;
- }
- else
- {
- t2 = start.tv_nsec - end.tv_nsec;
- t1--;
- }
- c->t_sec = t1;
- c->t_nsec = t2;
- INFO ("Seq time: %lus %luns", t1, t2);
- double tmp = t1;
- tmp += t2 / 1e+9;
- tmp = seq / tmp;
- INFO ("Average pps: %f", tmp);
- INFO ("Thread exiting...");
- pthread_exit (NULL);
-}
-
-int
-icmpr_send (long index, long packet_num, char *hw, char *ip)
-{
- memif_connection_t *c = &memif_connection[index];
- char *end;
- char *ui;
- uint8_t tmp[6];
- if (c->conn == NULL)
- return -1;
- c->seq = 0;
- icmpr_thread_data_t *data = &icmpr_thread_data[index];
- data->index = index;
- data->packet_num = packet_num;
- INFO ("PN: %lu", data->packet_num);
- printf ("%s\n", ip);
- printf ("%s\n", hw);
-
- ui = strtok (ip, ".");
- if (ui == NULL)
- goto error;
- tmp[0] = strtol (ui, &end, 10);
-
- ui = strtok (NULL, ".");
- if (ui == NULL)
- goto error;
- tmp[1] = strtol (ui, &end, 10);
-
- ui = strtok (NULL, ".");
- if (ui == NULL)
- goto error;
- tmp[2] = strtol (ui, &end, 10);
-
- ui = strtok (NULL, ".");
- if (ui == NULL)
- goto error;
- tmp[3] = strtol (ui, &end, 10);
-
- data->ip_daddr[0] = tmp[0];
- data->ip_daddr[1] = tmp[1];
- data->ip_daddr[2] = tmp[2];
- data->ip_daddr[3] = tmp[3];
-
- ui = strtok (hw, ":");
- if (ui == NULL)
- goto error;
- tmp[0] = strtol (ui, &end, 16);
- ui = strtok (NULL, ":");
- if (ui == NULL)
- goto error;
- tmp[1] = strtol (ui, &end, 16);
- ui = strtok (NULL, ":");
- if (ui == NULL)
- goto error;
- tmp[2] = strtol (ui, &end, 16);
- ui = strtok (NULL, ":");
- if (ui == NULL)
- goto error;
- tmp[3] = strtol (ui, &end, 16);
- ui = strtok (NULL, ":");
- if (ui == NULL)
- goto error;
- tmp[4] = strtol (ui, &end, 16);
- ui = strtok (NULL, ":");
- if (ui == NULL)
- goto error;
- tmp[5] = strtol (ui, &end, 16);
-
- data->hw_daddr[0] = tmp[0];
- data->hw_daddr[1] = tmp[1];
- data->hw_daddr[2] = tmp[2];
- data->hw_daddr[3] = tmp[3];
- data->hw_daddr[4] = tmp[4];
- data->hw_daddr[5] = tmp[5];
-
- pthread_create (&thread[index], NULL, icmpr_send_proc, (void *) data);
- return 0;
-
-error:
- INFO ("Invalid input\n");
- return 0;
-}
-
-int
-user_input_handler ()
-{
- char *in = (char *) malloc (256);
- char *ui = fgets (in, 256, stdin);
- char *end;
- long a;
- if (in[0] == '\n')
- goto done;
- ui = strtok (in, " ");
- if (strncmp (ui, "exit", 4) == 0)
- {
- free (in);
- icmpr_free ();
- exit (EXIT_SUCCESS);
- }
- else if (strncmp (ui, "help", 4) == 0)
- {
- print_help ();
- goto done;
- }
- else if (strncmp (ui, "conn", 4) == 0)
- {
- ui = strtok (NULL, " ");
- if (ui != NULL)
- a = strtol (ui, &end, 10);
- else
- {
- INFO ("expected id");
- goto done;
- }
- ui = strtok (NULL, " ");
- if (ui != NULL)
- icmpr_memif_create (a, strtol (ui, &end, 10), strtok (NULL, " "));
- else
- INFO ("expected mode <0|1>");
- goto done;
- }
- else if (strncmp (ui, "del", 3) == 0)
- {
- ui = strtok (NULL, " ");
- if (ui != NULL)
- icmpr_memif_delete (strtol (ui, &end, 10));
- else
- INFO ("expected id");
- goto done;
- }
- else if (strncmp (ui, "show", 4) == 0)
- {
- print_memif_details ();
- goto done;
- }
- else if (strncmp (ui, "ip-set", 6) == 0)
- {
- ui = strtok (NULL, " ");
- if (ui != NULL)
- icmpr_set_ip (strtol (ui, &end, 10), strtok (NULL, " "));
- else
- INFO ("expected id");
- goto done;
- }
- else if (strncmp (ui, "rx-mode", 7) == 0)
- {
- ui = strtok (NULL, " ");
- if (ui != NULL)
- a = strtol (ui, &end, 10);
- else
- {
- INFO ("expected id");
- goto done;
- }
- ui = strtok (NULL, " ");
- if (ui != NULL)
- icmpr_set_rx_mode (a, strtol (ui, &end, 10), strtok (NULL, " "));
- else
- INFO ("expected qid");
- goto done;
- }
- else if (strncmp (ui, "sh-count", 8) == 0)
- {
- icmpr_print_counters ();
- }
- else if (strncmp (ui, "cl-count", 8) == 0)
- {
- icmpr_reset_counters ();
- }
- else if (strncmp (ui, "send", 4) == 0)
- {
- ui = strtok (NULL, " ");
- if (ui != NULL)
- a = strtol (ui, &end, 10);
- else
- {
- INFO ("expected id");
- goto done;
- }
- ui = strtok (NULL, " ");
- if (ui != NULL)
- icmpr_send (a, strtol (ui, &end, 10), strtok (NULL, " "),
- strtok (NULL, " "));
- else
- INFO ("expected count");
- goto done;
- }
- else
- {
- INFO ("unknown command: %s", ui);
- goto done;
- }
-
- return 0;
-done:
- free (in);
- return 0;
-}
-
-int
-poll_event (int timeout)
-{
- struct epoll_event evt;
- int app_err = 0, memif_err = 0, en = 0;
- uint32_t events = 0;
- struct timespec start, end;
- memset (&evt, 0, sizeof (evt));
- evt.events = EPOLLIN | EPOLLOUT;
- sigset_t sigset;
- sigemptyset (&sigset);
- en = epoll_pwait (epfd, &evt, 1, timeout, &sigset);
- /* id event polled */
- timespec_get (&start, TIME_UTC);
- if (en < 0)
- {
- DBG ("epoll_pwait: %s", strerror (errno));
- return -1;
- }
- if (en > 0)
- {
- /* this app does not use any other file descriptors than stds and memif control fds */
- if (evt.data.fd > 2)
- {
- /* event of memif control fd */
- /* convert epoll events to memif events */
- if (evt.events & EPOLLIN)
- events |= MEMIF_FD_EVENT_READ;
- if (evt.events & EPOLLOUT)
- events |= MEMIF_FD_EVENT_WRITE;
- if (evt.events & EPOLLERR)
- events |= MEMIF_FD_EVENT_ERROR;
- memif_err = memif_control_fd_handler (evt.data.fd, events);
- if (memif_err != MEMIF_ERR_SUCCESS)
- INFO ("memif_control_fd_handler: %s", memif_strerror (memif_err));
- }
- else if (evt.data.fd == 0)
- {
- app_err = user_input_handler ();
- }
- else
- {
- DBG ("unexpected event at memif_epfd. fd %d", evt.data.fd);
- }
- }
-
- timespec_get (&end, TIME_UTC);
- LOG ("interrupt: %ld", end.tv_nsec - start.tv_nsec);
-
- if ((app_err < 0) || (memif_err < 0))
- {
- if (app_err < 0)
- DBG ("user input handler error");
- if (memif_err < 0)
- DBG ("memif control fd handler error");
- return -1;
- }
-
- return 0;
-}
-
-int
-main ()
-{
- epfd = epoll_create (1);
- add_epoll_fd (0, EPOLLIN);
-
-#ifdef LOG_FILE
- remove (LOG_FILE);
- enable_log = 0;
-
- out_fd = open (LOG_FILE, O_WRONLY | O_CREAT, S_IRWXO);
- if (out_fd < 0)
- INFO ("Error opening log file: %s", strerror (errno));
-#endif /* LOG_FILE */
-
- /* initialize memory interface */
- int err, i;
- /* if valid callback is passed as argument, fd event polling will be done by user
- all file descriptors and events will be passed to user in this callback */
- /* if callback is set to NULL libmemif will handle fd event polling */
- err = memif_init (control_fd_update, APP_NAME, NULL, NULL, NULL);
- if (err != MEMIF_ERR_SUCCESS)
- {
- INFO ("memif_init: %s", memif_strerror (err));
- icmpr_free ();
- exit (-1);
- }
-
- for (i = 0; i < MAX_CONNS; i++)
- {
- memset (&memif_connection[i], 0, sizeof (memif_connection_t));
- ctx[i] = i;
- }
-
- print_help ();
-
- /* main loop */
- while (1)
- {
- if (poll_event (-1) < 0)
- {
- DBG ("poll_event error!");
- }
- }
-}
Code Review / vpp.git / blobdiff