summaryrefslogtreecommitdiff
path: root/src/tools/oping/oping.c
blob: 99f1e9d11e5f98db5fe7afc3edf397660d6b20a8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
/*
 * Ouroboros - Copyright (C) 2016 - 2018
 *
 * Ouroboros ping application
 *
 *    Dimitri Staessens <dimitri.staessens@ugent.be>
 *    Sander Vrijders   <sander.vrijders@ugent.be>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *
 * 2. 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.
 *
 * 3. Neither the name of the copyright holder nor the names of its
 * contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "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
 * COPYRIGHT HOLDER OR CONTRIBUTORS 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.
 */

#define _POSIX_C_SOURCE 199506L
#define __XSI_VISIBLE 500

#include <ouroboros/dev.h>
#include <ouroboros/fccntl.h>
#include <ouroboros/fqueue.h>

#include "time_utils.h"

#include <stdio.h>
#include <string.h>
#include <pthread.h>
#include <stdint.h>
#include <stdbool.h>
#include <signal.h>
#include <stdlib.h>
#include <sys/time.h>
#include <arpa/inet.h>
#include <math.h>
#include <errno.h>
#include <float.h>

#define OPING_BUF_SIZE 1500

#define ECHO_REQUEST 0
#define ECHO_REPLY 1

#define OPING_MAX_FLOWS 256

struct c {
        char *   s_apn;
        int      interval;
        uint32_t count;
        int      size;
        bool     timestamp;

        /* stats */
        uint32_t sent;
        uint32_t rcvd;
        size_t   ooo;

        double rtt_min;
        double rtt_max;
        double rtt_avg;
        double rtt_m2;

        pthread_t reader_pt;
        pthread_t writer_pt;
} client;

struct s {
        struct timespec times[OPING_MAX_FLOWS];
        fset_t *        flows;
        fqueue_t *      fq;
        pthread_mutex_t lock;

        pthread_t cleaner_pt;
        pthread_t accept_pt;
        pthread_t server_pt;
} server;

struct oping_msg {
        uint32_t type;
        uint32_t id;
        uint64_t tv_sec;
        uint64_t tv_nsec;
} __attribute__((packed));


#include "oping_client.c"
#include "oping_server.c"

static void usage(void)
{
        printf("Usage: oping [OPTION]...\n"
               "Checks liveness between a client and a server\n"
               "and reports the Round Trip Time (RTT)\n\n"
               "  -l, --listen              Run in server mode\n"
               "\n"
               "  -c, --count               Number of packets (default 1000)\n"
               "  -i, --interval            Interval (ms, default 1000)\n"
               "  -n, --server-name         Name of the oping server\n"
               "  -s, --size                Payload size (B, default 64)\n"
               "  -D, --timeofday           Print time of day before each line"
               "\n"
               "      --help                Display this help text and exit\n");
}

int main(int     argc,
         char ** argv)
{
        int    ret  = -1;
        char * rem  = NULL;
        bool   serv = false;

        argc--;
        argv++;

        client.s_apn = NULL;
        client.interval = 1000;
        client.size = 64;
        client.count = 1000;
        client.timestamp = false;

        while (argc > 0) {
                if (strcmp(*argv, "-i") == 0 ||
                    strcmp(*argv, "--interval") == 0) {
                        client.interval = strtol(*(++argv), &rem, 10);
                        --argc;
                } else if (strcmp(*argv, "-n") == 0 ||
                           strcmp(*argv, "--server_name") == 0) {
                        client.s_apn = *(++argv);
                        --argc;
                } else if (strcmp(*argv, "-c") == 0 ||
                           strcmp(*argv, "--count") == 0) {
                        client.count = strtol(*(++argv), &rem, 10);
                        --argc;
                } else if (strcmp(*argv, "-s") == 0 ||
                           strcmp(*argv, "--size") == 0) {
                        client.size = strtol(*(++argv), &rem, 10);
                        --argc;
                } else if (strcmp(*argv, "-l") == 0 ||
                           strcmp(*argv, "--listen") == 0) {
                        serv = true;
                } else if (strcmp(*argv, "-D") == 0 ||
                           strcmp(*argv, "--timeofday") == 0) {
                        client.timestamp = true;
                } else {
                        usage();
                        exit(EXIT_SUCCESS);
                }
                argc--;
                argv++;
        }

        if (serv) {
                ret = server_main();
        } else {
                if (client.s_apn == NULL) {
                        printf("No server specified.\n");
                        usage();
                        exit(EXIT_SUCCESS);
                }
                if (client.interval > 10000) {
                        printf("Ping interval truncated to 10s.\n");
                        client.interval = 10000;
                }
                if (client.size > OPING_BUF_SIZE) {
                        printf("Packet size truncated to %d bytes.\n",
                               OPING_BUF_SIZE);
                        client.size = OPING_BUF_SIZE;
                }

                if (client.size < 64) {
                        printf("Packet size set to 64 bytes.\n");
                        client.size = 64;
                }

                ret = client_main();
        }

        if (ret < 0)
                exit(EXIT_FAILURE);

        exit(EXIT_SUCCESS);
}