nettest1.c

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/*
 * Copyright (c) 2009 Lukas Mejdrech
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "nettest.h"
#include "print_error.h"

#include <malloc.h>
#include <stdio.h>
#include <str.h>
#include <task.h>
#include <time.h>
#include <arg_parse.h>

#include <net/in.h>
#include <net/in6.h>
#include <net/inet.h>
#include <net/socket.h>
#include <net/socket_parse.h>

#define NAME    "Nettest1"

#define NETTEST1_TEXT   "Networking test 1 - sockets"

static int family = PF_INET;
static sock_type_t type = SOCK_DGRAM;
static char *data;
static size_t size = 27;
static int verbose = 0;

static struct sockaddr *address;
static socklen_t addrlen;

static int sockets;
static int messages;
static uint16_t port;

static void nettest1_print_help(void)
{
        printf(
            "Network Networking test 1 aplication - sockets\n"
            "Usage: echo [options] numeric_address\n"
            "Where options are:\n"
            "-f protocol_family | --family=protocol_family\n"
            "\tThe listenning socket protocol family. Only the PF_INET and "
            "PF_INET6 are supported.\n"
            "\n"
            "-h | --help\n"
            "\tShow this application help.\n"
            "\n"
            "-m count | --messages=count\n"
            "\tThe number of messages to send and receive per socket. The "
            "default is 10.\n"
            "\n"
            "-n sockets | --sockets=count\n"
            "\tThe number of sockets to use. The default is 10.\n"
            "\n"
            "-p port_number | --port=port_number\n"
            "\tThe port number the application should send messages to. The "
            "default is 7.\n"
            "\n"
            "-s packet_size | --size=packet_size\n"
            "\tThe packet data size the application sends. The default is "
            "28 bytes.\n"
            "\n"
            "-v | --verbose\n"
            "\tShow all output messages.\n");
}

static int nettest1_parse_opt(int argc, char *argv[], int *index)
{
        int value;
        int rc;

        switch (argv[*index][1]) {
        /*
         * Short options with only one letter
         */
        case 'f':
                rc = arg_parse_name_int(argc, argv, index, &family, 0, socket_parse_protocol_family);
                if (rc != EOK)
                        return rc;
                break;
        case 'h':
                nettest1_print_help();
                return EOK;
        case 'm':
                rc = arg_parse_int(argc, argv, index, &messages, 0);
                if (rc != EOK)
                        return rc;
                break;
        case 'n':
                rc = arg_parse_int(argc, argv, index, &sockets, 0);
                if (rc != EOK)
                        return rc;
                break;
        case 'p':
                rc = arg_parse_int(argc, argv, index, &value, 0);
                if (rc != EOK)
                        return rc;
                port = (uint16_t) value;
                break;
        case 's':
                rc = arg_parse_int(argc, argv, index, &value, 0);
                if (rc != EOK)
                        return rc;
                size = (value >= 0) ? (size_t) value : 0;
                break;
        case 't':
                rc = arg_parse_name_int(argc, argv, index, &value, 0, socket_parse_socket_type);
                if (rc != EOK)
                        return rc;
                type = (sock_type_t) value;
                break;
        case 'v':
                verbose = 1;
                break;
        /*
         * Long options with double dash ('-')
         */
        case '-':
                if (str_lcmp(argv[*index] + 2, "family=", 7) == 0) {
                        rc = arg_parse_name_int(argc, argv, index, &family, 9,
                            socket_parse_protocol_family);
                        if (rc != EOK)
                                return rc;
                } else if (str_lcmp(argv[*index] + 2, "help", 5) == 0) {
                        nettest1_print_help();
                        return EOK;
                } else if (str_lcmp(argv[*index] + 2, "messages=", 6) == 0) {
                        rc = arg_parse_int(argc, argv, index, &messages, 8);
                        if (rc != EOK)
                                return rc;
                } else if (str_lcmp(argv[*index] + 2, "sockets=", 6) == 0) {
                        rc = arg_parse_int(argc, argv, index, &sockets, 8);
                        if (rc != EOK)
                                return rc;
                } else if (str_lcmp(argv[*index] + 2, "port=", 5) == 0) {
                        rc = arg_parse_int(argc, argv, index, &value, 7);
                        if (rc != EOK)
                                return rc;
                        port = (uint16_t) value;
                } else if (str_lcmp(argv[*index] + 2, "type=", 5) == 0) {
                        rc = arg_parse_name_int(argc, argv, index, &value, 7,
                            socket_parse_socket_type);
                        if (rc != EOK)
                                return rc;
                        type = (sock_type_t) value;
                } else if (str_lcmp(argv[*index] + 2, "verbose", 8) == 0) {
                        verbose = 1;
                } else {
                        nettest1_print_help();
                        return EINVAL;
                }
                break;
        default:
                nettest1_print_help();
                return EINVAL;
        }

        return EOK;
}

static void nettest1_fill_buffer(char *buffer, size_t size)
{
        size_t length;

        length = 0;
        while (size > length + sizeof(NETTEST1_TEXT) - 1) {
                memcpy(buffer + length, NETTEST1_TEXT,
                    sizeof(NETTEST1_TEXT) - 1);
                length += sizeof(NETTEST1_TEXT) - 1;
        }

        memcpy(buffer + length, NETTEST1_TEXT, size - length);
        buffer[size] = '\0';
}

static int nettest1_test(int *socket_ids, int nsockets, int nmessages)
{
        int rc;

        if (verbose)
                printf("%d sockets, %d messages\n", nsockets, nmessages);

        rc = sockets_create(verbose, socket_ids, nsockets, family, type);
        if (rc != EOK)
                return rc;

        if (type == SOCK_STREAM) {
                rc = sockets_connect(verbose, socket_ids, nsockets, address,
                    addrlen);
                if (rc != EOK)
                        return rc;
        }

        rc = sockets_sendto_recvfrom(verbose, socket_ids, nsockets, address,
            &addrlen, data, size, nmessages);
        if (rc != EOK)
                return rc;

        rc = sockets_close(verbose, socket_ids, nsockets);
        if (rc != EOK)
                return rc;

        if (verbose)
                printf("\tOK\n");

        /****/

        rc = sockets_create(verbose, socket_ids, nsockets, family, type);
        if (rc != EOK)
                return rc;

        if (type == SOCK_STREAM) {
                rc = sockets_connect(verbose, socket_ids, nsockets, address,
                    addrlen);
                if (rc != EOK)
                        return rc;
        }

        rc = sockets_sendto(verbose, socket_ids, nsockets, address, addrlen,
            data, size, nmessages);
        if (rc != EOK)
                return rc;

        rc = sockets_recvfrom(verbose, socket_ids, nsockets, address, &addrlen,
            data, size, nmessages);
        if (rc != EOK)
                return rc;

        rc = sockets_close(verbose, socket_ids, nsockets);
        if (rc != EOK)
                return rc;

        if (verbose)
                printf("\tOK\n");

        return EOK;
}

int main(int argc, char *argv[])
{
        struct sockaddr_in address_in;
        struct sockaddr_in6 address_in6;
        uint8_t *address_start;

        int *socket_ids;
        int index;
        struct timeval time_before;
        struct timeval time_after;

        int rc;

        sockets = 10;
        messages = 10;
        port = 7;

        /*
         * Parse the command line arguments. Stop before the last argument
         * if it does not start with dash ('-')
         */
        for (index = 1; (index < argc - 1) || ((index == argc - 1) && (argv[index][0] == '-')); index++) {
                /* Options should start with dash ('-') */
                if (argv[index][0] == '-') {
                        rc = nettest1_parse_opt(argc, argv, &index);
                        if (rc != EOK)
                                return rc;
                } else {
                        nettest1_print_help();
                        return EINVAL;
                }
        }

        /* If not before the last argument containing the address */
        if (index >= argc) {
                printf("Command line error: missing address\n");
                nettest1_print_help();
                return EINVAL;
        }

        /* Prepare the address buffer */

        switch (family) {
        case PF_INET:
                address_in.sin_family = AF_INET;
                address_in.sin_port = htons(port);
                address = (struct sockaddr *) &address_in;
                addrlen = sizeof(address_in);
                address_start = (uint8_t *) &address_in.sin_addr.s_addr;
                break;
        case PF_INET6:
                address_in6.sin6_family = AF_INET6;
                address_in6.sin6_port = htons(port);
                address = (struct sockaddr *) &address_in6;
                addrlen = sizeof(address_in6);
                address_start = (uint8_t *) &address_in6.sin6_addr.s6_addr;
                break;
        default:
                fprintf(stderr, "Address family is not supported\n");
                return EAFNOSUPPORT;
        }

        /* Parse the last argument which should contain the address */
        rc = inet_pton(family, argv[argc - 1], address_start);
        if (rc != EOK) {
                fprintf(stderr, "Address parse error %d\n", rc);
                return rc;
        }

        /* Check data buffer size */
        if (size <= 0) {
                fprintf(stderr, "Data buffer size too small (%zu). Using 1024 "
                    "bytes instead.\n", size);
                size = 1024;
        }

        /*
         * Prepare data buffer. Allocate size bytes plus one for the
         * trailing null character.
         */
        data = (char *) malloc(size + 1);
        if (!data) {
                fprintf(stderr, "Failed to allocate data buffer.\n");
                return ENOMEM;
        }
        nettest1_fill_buffer(data, size);

        /* Check socket count */
        if (sockets <= 0) {
                fprintf(stderr, "Socket count too small (%d). Using "
                    "2 instead.\n", sockets);
                sockets = 2;
        }

        /*
         * Prepare socket buffer. Allocate count fields plus the terminating
         * null (\0).
         */
        socket_ids = (int *) malloc(sizeof(int) * (sockets + 1));
        if (!socket_ids) {
                fprintf(stderr, "Failed to allocate receive buffer.\n");
                return ENOMEM;
        }
        socket_ids[sockets] = 0;

        if (verbose)
                printf("Starting tests\n");

        rc = gettimeofday(&time_before, NULL);
        if (rc != EOK) {
                fprintf(stderr, "Get time of day error %d\n", rc);
                return rc;
        }

        nettest1_test(socket_ids,       1,        1);
        nettest1_test(socket_ids,       1, messages);
        nettest1_test(socket_ids, sockets,        1);
        nettest1_test(socket_ids, sockets, messages);

        rc = gettimeofday(&time_after, NULL);
        if (rc != EOK) {
                fprintf(stderr, "Get time of day error %d\n", rc);
                return rc;
        }

        printf("Tested in %ld microseconds\n", tv_sub(&time_after,
            &time_before));

        if (verbose)
                printf("Exiting\n");

        return EOK;
}

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