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[/] [openrisc/] [trunk/] [rtos/] [ecos-3.0/] [packages/] [net/] [common/] [current/] [tests/] [nc6_test_master.c] - Blame information for rev 786

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1 786 skrzyp 
//==========================================================================
2 
//
3 
//      tests/nc6_test_master.c
4 
//
5 
//      Network characterizations test (master portion) IPv4+IPv6 aware
6 
//
7 
//==========================================================================
8 
// ####BSDALTCOPYRIGHTBEGIN####
9 
// -------------------------------------------
10 
// Portions of this software may have been derived from FreeBSD, OpenBSD,
11 
// or other sources, and if so are covered by the appropriate copyright
12 
// and license included herein.
13 
// -------------------------------------------
14 
// ####BSDALTCOPYRIGHTEND####
15 
//==========================================================================
16 
//#####DESCRIPTIONBEGIN####
17 
//
18 
// Author(s):    gthomas
19 
// Contributors: gthomas
20 
// Date:         2000-01-10
21 
// Purpose:
22 
// Description:
23 
//
24 
//
25 
//####DESCRIPTIONEND####
26 
//
27 
//==========================================================================
28 
 
29 
// Network characterization test code - master portion
30 
 
31 
#include "nc_test_framework.h"
32 
 
33 
#ifdef __ECOS
34 
#ifndef CYGPKG_LIBC_STDIO
35 
#define perror(s) diag_printf(#s ": %s\n", strerror(errno))
36 
#endif
37 
#define STACK_SIZE (CYGNUM_HAL_STACK_SIZE_TYPICAL + 0x1000)
38 
static char stack[STACK_SIZE];
39 
static cyg_thread thread_data;
40 
static cyg_handle_t thread_handle;
41 
#endif
42 
 
43 
struct test_params {
44 
    int  argc;
45 
    char **argv;
46 
};
47 
 
48 
#define MAX_BUF 32*1024
49 
static unsigned char in_buf[MAX_BUF], out_buf[MAX_BUF];
50 
 
51 
static int test_seq = 1;
52 
static long long idle_count;
53 
static long      idle_ticks;
54 
#define IDLE_TEST_TIME   10
55 
 
56 
struct pause {
57 
    int pause_ticks;
58 
    int pause_threshold;
59 
};
60 
#define LENGTH(x) (sizeof(x)/sizeof(x[0]))
61 
 
62 
#ifdef __ECOS
63 
extern void
64 
cyg_test_exit(void);
65 
#else
66 
void
67 
cyg_test_exit(void)
68 
{
69 
    test_printf("... Done\n");
70 
    exit(1);
71 
}
72 
#endif
73 
 
74 
#ifdef __ECOS
75 
static void
76 
test_delay(int ticks)
77 
{
78 
    cyg_thread_delay(ticks);
79 
}
80 
 
81 
#else
82 
 
83 
static void
84 
test_delay(int ticks)
85 
{
86 
    usleep(ticks * 10000);
87 
}
88 
#endif
89 
 
90 
void
91 
pexit(char *s)
92 
{
93 
    perror(s);
94 
    cyg_test_exit();
95 
}
96 
 
97 
#ifdef __ECOS
98 
# ifdef CYGPKG_POSIX
99 
# #include <pkgconf/posix.h>
100 
# endif
101 
# ifndef CYGPKG_POSIX_TIMERS
102 
int
103 
gettimeofday(struct timeval *tv, struct timezone *tz)
104 
{
105 
    cyg_tick_count_t cur_time;
106 
    cur_time = cyg_current_time();
107 
    tv->tv_sec = cur_time / 100;
108 
    tv->tv_usec = (cur_time % 100) * 10000;
109 
}
110 
# endif
111 
#endif
112 
 
113 
void
114 
show_results(const char *msg, struct timeval *start,
115 
             struct timeval *end, int nbufs, int buflen,
116 
             int lost, int seq_errors)
117 
{
118 
    struct timeval tot_time;
119 
#ifndef __ECOS
120 
    double real_time, thru;
121 
    long tot_bytes = nbufs * buflen;
122 
#endif
123 
    timersub(end, start, &tot_time);
124 
    test_printf("%s - %d bufs of %d bytes in %d.%02d seconds",
125 
                msg, nbufs, buflen,
126 
                tot_time.tv_sec, tot_time.tv_usec / 10000);
127 
#ifndef __ECOS
128 
    real_time = tot_time.tv_sec + ((tot_time.tv_usec / 10000) * .01);
129 
    // Compute bytes / second (rounded up)
130 
    thru = tot_bytes / real_time;
131 
    // Convert to Mb / second
132 
    test_printf(" - %.2f KB/S", thru / 1024.0);
133 
    test_printf(" - %.4f Mbit/S (M = 10^6)", thru * 8.0 / 1000000.0);
134 
#endif
135 
    if (lost) {
136 
        test_printf(", %d lost", lost);
137 
    }
138 
    if (seq_errors) {
139 
        test_printf(", %d out of sequence", seq_errors);
140 
    }
141 
    test_printf("\n");
142 
}
143 
 
144 
void
145 
new_test(void)
146 
{
147 
    test_seq++;
148 
}
149 
 
150 
static int
151 
sa_len(struct sockaddr *sa)
152 
{
153 
    switch (sa->sa_family) {
154 
    case AF_INET:
155 
        return sizeof(struct sockaddr_in);
156 
    case AF_INET6:
157 
        return sizeof(struct sockaddr_in6);
158 
    default:
159 
        printf("Unknown socket type: %d\n", sa->sa_family);
160 
        return sizeof(struct sockaddr_storage);
161 
    }
162 
}
163 
 
164 
int
165 
nc_message(int s, struct nc_request *req,
166 
           struct nc_reply *reply, struct sockaddr *slave)
167 
{
168 
    fd_set fds;
169 
    struct timeval timeout;
170 
 
171 
    req->seq = htonl(test_seq);
172 
    if (sendto(s, req, sizeof(*req), 0, slave, sa_len(slave)) < 0) {
173 
        perror("sendto");
174 
        return false;
175 
    }
176 
    FD_ZERO(&fds);
177 
    FD_SET(s, &fds);
178 
    timeout.tv_sec = NC_REPLY_TIMEOUT;
179 
    timeout.tv_usec = 0;
180 
    if (select(s+1, &fds, 0, 0, &timeout) <= 0) {
181 
        test_printf("No response to command\n");
182 
        return false;
183 
    }
184 
    if (recvfrom(s, reply, sizeof(*reply), 0, 0, 0) < 0) {
185 
        perror("recvfrom");
186 
        return false;
187 
    }
188 
    if (reply->seq != req->seq) {
189 
        test_printf("Response out of order - sent: %d, recvd: %d\n",
190 
                    ntohl(req->seq), ntohl(reply->seq));
191 
        return false;
192 
    }
193 
    return true;
194 
}
195 
 
196 
void
197 
show_test_results(struct nc_test_results *results)
198 
{
199 
    if ((ntohl(results->key1) == NC_TEST_RESULT_KEY1) &&
200 
        (ntohl(results->key2) == NC_TEST_RESULT_KEY2) &&
201 
        (ntohl(results->seq) == test_seq)) {
202 
        test_printf("   slave sent %d, recvd %d\n",
203 
                    ntohl(results->nsent), ntohl(results->nrecvd));
204 
    } else {
205 
        test_printf("   ... invalid results - keys: %x/%x, seq: %d/%d\n",
206 
                    ntohl(results->key1), ntohl(results->key2),
207 
                    ntohl(results->seq), test_seq);
208 
    }
209 
}
210 
 
211 
void
212 
do_udp_test(int s1, int type, struct sockaddr *slave,
213 
            int nbufs, int buflen, int pause_time, int pause_threshold)
214 
{
215 
    int i, s, td_len, seq, seq_errors, total_packets;
216 
    struct sockaddr_storage test_chan_master, test_chan_slave;
217 
    struct timeval start_time, end_time;
218 
    struct nc_request req;
219 
    struct nc_reply reply;
220 
    struct nc_test_results results;
221 
    struct nc_test_data *tdp;
222 
    fd_set fds;
223 
    struct timeval timeout;
224 
    int lost_packets = 0;
225 
    int need_send, need_recv;
226 
    const char *type_name;
227 
    int pkt_ctr = 0;
228 
 
229 
    need_recv = true;  need_send = true;  type_name = "UDP echo";
230 
    switch (type) {
231 
    case NC_REQUEST_UDP_RECV:
232 
        need_recv = false;
233 
        need_send = true;
234 
        type_name = "UDP recv";
235 
        break;
236 
    case NC_REQUEST_UDP_SEND:
237 
        need_recv = true;
238 
        need_send = false;
239 
        type_name = "UDP send";
240 
        break;
241 
    case NC_REQUEST_UDP_ECHO:
242 
        break;
243 
    }
244 
 
245 
    new_test();
246 
    req.type = htonl(type);
247 
    req.nbufs = htonl(nbufs);
248 
    req.buflen = htonl(buflen);
249 
    req.slave_port = htonl(NC_TESTING_SLAVE_PORT);
250 
    req.master_port = htonl(NC_TESTING_MASTER_PORT);
251 
    nc_message(s1, &req, &reply, slave);
252 
    if (reply.response != ntohl(NC_REPLY_ACK)) {
253 
        test_printf("Slave denied %s [%d,%d] test\n", type_name, nbufs, buflen);
254 
        return;
255 
    }
256 
 
257 
    s = socket(slave->sa_family, SOCK_DGRAM, 0);
258 
    if (s < 0) {
259 
        pexit("datagram socket");
260 
    }
261 
 
262 
    memset(&test_chan_master, 0, sizeof(test_chan_master));
263 
    ((struct sockaddr *)&test_chan_master)->sa_family = slave->sa_family;
264 
    memcpy(&test_chan_slave, slave, sa_len(slave));
265 
#ifndef __linux
266 
    ((struct sockaddr *)&test_chan_master)->sa_len = slave->sa_len;
267 
#endif
268 
    switch (slave->sa_family) {
269 
    case AF_INET:
270 
        ((struct sockaddr_in *)&test_chan_master)->sin_addr.s_addr = htonl(INADDR_ANY);
271 
        ((struct sockaddr_in *)&test_chan_master)->sin_port = htons(ntohl(req.master_port));
272 
        ((struct sockaddr_in *)&test_chan_slave)->sin_port = htons(ntohl(req.slave_port));
273 
        break;
274 
    case AF_INET6:
275 
        ((struct sockaddr_in6 *)&test_chan_master)->sin6_addr = in6addr_any;
276 
        ((struct sockaddr_in6 *)&test_chan_master)->sin6_port = htons(ntohl(req.master_port));
277 
        ((struct sockaddr_in6 *)&test_chan_slave)->sin6_port = htons(ntohl(req.slave_port));
278 
        break;
279 
    default:
280 
        pexit("strange TCP sockaddr");
281 
    }
282 
 
283 
    if (bind(s, (struct sockaddr *)&test_chan_master,
284 
             sa_len((struct sockaddr *)&test_chan_master)) < 0) {
285 
        perror("UDP bind <do_udp_test>");
286 
        close(s);
287 
        return;
288 
    }
289 
    test_printf("Start %s [%d,%d]", type_name, nbufs, buflen);
290 
    if (pause_time) {
291 
        test_printf(" - %dms delay after %d packet%s\n", pause_time*10,
292 
                    pause_threshold, pause_threshold > 1 ? "s" : "");
293 
    } else {
294 
        test_printf(" - no delays\n");
295 
    }
296 
 
297 
    gettimeofday(&start_time, 0);
298 
    seq = 0;  seq_errors = 0;  total_packets = 0;
299 
    for (i = 0;  i < nbufs;  i++) {
300 
        td_len = buflen + sizeof(struct nc_test_data);
301 
        if (need_send) {
302 
            tdp = (struct nc_test_data *)out_buf;
303 
            tdp->key1 = htonl(NC_TEST_DATA_KEY1);
304 
            tdp->key2 = htonl(NC_TEST_DATA_KEY2);
305 
            tdp->seq = htonl(i);
306 
            tdp->len = htonl(td_len);
307 
            if (sendto(s, tdp, td_len, 0,
308 
                       (struct sockaddr *)&test_chan_slave,
309 
                       sa_len((struct sockaddr *)&test_chan_slave)) < 0) {
310 
                perror("sendto");
311 
                close(s);
312 
                return;
313 
            }
314 
            total_packets++;
315 
        }
316 
        if (need_recv) {
317 
            FD_ZERO(&fds);
318 
            FD_SET(s, &fds);
319 
            timeout.tv_sec = NC_TEST_TIMEOUT;
320 
            timeout.tv_usec = 0;
321 
            if (select(s+1, &fds, 0, 0, &timeout) <= 0) {
322 
                test_printf("Slave timed out after %d buffers\n", i);
323 
                lost_packets++;
324 
            } else {
325 
                tdp = (struct nc_test_data *)in_buf;
326 
                if (recvfrom(s, tdp, td_len, 0, 0, 0) < 0) {
327 
                    perror("recvfrom");
328 
                    close(s);
329 
                    return;
330 
                }
331 
                if ((ntohl(tdp->key1) == NC_TEST_DATA_KEY1) &&
332 
                    (ntohl(tdp->key2) == NC_TEST_DATA_KEY2)) {
333 
                    if (ntohl(tdp->seq) != seq) {
334 
                        test_printf("Packets out of sequence - recvd: %d, expected: %d\n",
335 
                                    ntohl(tdp->seq), seq);
336 
                        seq_errors++;
337 
                        if (!need_send) {
338 
                            // Reset sequence to what the slave wants
339 
                            seq = ntohl(tdp->seq);
340 
                        }
341 
                    }
342 
                } else {
343 
                    test_printf("Bad data packet - key: %x/%x, seq: %d\n",
344 
                                ntohl(tdp->key1), ntohl(tdp->key2),
345 
                                ntohl(tdp->seq));
346 
                }
347 
                total_packets++;
348 
            }
349 
            seq++;
350 
            if (seq == nbufs) {
351 
                break;
352 
            }
353 
            if (pause_time && (++pkt_ctr == pause_threshold)) {
354 
                pkt_ctr = 0;
355 
                test_delay(pause_time);
356 
            }
357 
        }
358 
    }
359 
    gettimeofday(&end_time, 0);
360 
    show_results(type_name, &start_time, &end_time, total_packets, buflen,
361 
                 lost_packets, seq_errors);
362 
    // Fetch results record
363 
    FD_ZERO(&fds);
364 
    FD_SET(s, &fds);
365 
    timeout.tv_sec = NC_RESULTS_TIMEOUT;
366 
    timeout.tv_usec = 0;
367 
    if (select(s+1, &fds, 0, 0, &timeout) <= 0) {
368 
        test_printf("No results record sent\n");
369 
    } else {
370 
        if (recvfrom(s, &results, sizeof(results), 0, 0, 0) < 0) {
371 
            perror("recvfrom");
372 
        }
373 
        show_test_results(&results);
374 
    }
375 
    close(s);
376 
}
377 
 
378 
//
379 
// Read data from a stream, accounting for the fact that packet 'boundaries'
380 
// are not preserved.  This can also timeout (which would probably wreck the
381 
// data boundaries).
382 
//
383 
 
384 
int
385 
do_read(int fd, void *buf, int buflen)
386 
{
387 
    char *p = (char *)buf;
388 
    int len = buflen;
389 
    int res;
390 
    while (len) {
391 
        res = read(fd, p, len);
392 
        if (res < 0) {
393 
            perror("read");
394 
        } else {
395 
            len -= res;
396 
            p += res;
397 
            if (res == 0) {
398 
                break;
399 
            }
400 
        }
401 
    }
402 
    return (buflen - len);
403 
}
404 
 
405 
void
406 
do_tcp_test(int s1, int type, struct sockaddr *slave,
407 
            int nbufs, int buflen, int pause_time, int pause_threshold)
408 
{
409 
    int i, s, td_len, tot_len, wlen, len, seq, seq_errors, total_packets, res;
410 
    struct sockaddr_storage test_chan_slave;
411 
    struct timeval start_time, end_time;
412 
    struct nc_request req;
413 
    struct nc_reply reply;
414 
    struct nc_test_results results;
415 
    struct nc_test_data *tdp;
416 
    int lost_packets = 0;
417 
    int conn_failures = 0;
418 
    int need_send, need_recv;
419 
    const char *type_name;
420 
    int pkt_ctr = 0;
421 
    unsigned char *dp;
422 
 
423 
    need_recv = true;  need_send = true;  type_name = "TCP echo";
424 
    switch (type) {
425 
    case NC_REQUEST_TCP_RECV:
426 
        need_recv = false;
427 
        need_send = true;
428 
        type_name = "TCP recv";
429 
        break;
430 
    case NC_REQUEST_TCP_SEND:
431 
        need_recv = true;
432 
        need_send = false;
433 
        type_name = "TCP send";
434 
        break;
435 
    case NC_REQUEST_TCP_ECHO:
436 
        break;
437 
    }
438 
 
439 
    new_test();
440 
    req.type = htonl(type);
441 
    req.nbufs = htonl(nbufs);
442 
    req.buflen = htonl(buflen);
443 
    req.slave_port = htonl(NC_TESTING_SLAVE_PORT);
444 
    req.master_port = htonl(NC_TESTING_MASTER_PORT);
445 
    nc_message(s1, &req, &reply, slave);
446 
    if (reply.response != ntohl(NC_REPLY_ACK)) {
447 
        test_printf("Slave denied %s [%d,%d] test\n", type_name, nbufs, buflen);
448 
        return;
449 
    }
450 
 
451 
    s = socket(slave->sa_family, SOCK_STREAM, 0);
452 
    if (s < 0) {
453 
        pexit("datagram socket");
454 
    }
455 
 
456 
    test_printf("Start %s [%d,%d]", type_name, nbufs, buflen);
457 
    if (pause_time) {
458 
        test_printf(" - %dms delay after %d packet%s\n", pause_time*10,
459 
                    pause_threshold, pause_threshold > 1 ? "s" : "");
460 
    } else {
461 
        test_printf(" - no delays\n");
462 
    }
463 
 
464 
    test_delay(3*100);
465 
    memcpy(&test_chan_slave, slave, sa_len(slave));
466 
    switch (slave->sa_family) {
467 
    case AF_INET:
468 
        ((struct sockaddr_in *)&test_chan_slave)->sin_port = htons(ntohl(req.slave_port));
469 
        break;
470 
    case AF_INET6:
471 
        ((struct sockaddr_in6 *)&test_chan_slave)->sin6_port = htons(ntohl(req.slave_port));
472 
        break;
473 
    default:
474 
        pexit("strange TCP sockaddr");
475 
    }
476 
    while (connect(s, (struct sockaddr *)&test_chan_slave, sa_len(slave)) < 0) {
477 
        perror("Can't connect to slave");
478 
        if (++conn_failures > MAX_ERRORS) {
479 
            test_printf("Too many connection failures - giving up\n");
480 
            return;
481 
        }
482 
        if (errno == ECONNREFUSED) {
483 
            // Give the slave a little time
484 
            test_delay(100);  // 1 second
485 
        } else {
486 
            return;
487 
        }
488 
    }
489 
 
490 
    gettimeofday(&start_time, 0);
491 
    seq = 0;  seq_errors = 0;  total_packets = 0;
492 
    for (i = 0;  i < nbufs;  i++) {
493 
        td_len = buflen + sizeof(struct nc_test_data);
494 
        if (need_send) {
495 
            tdp = (struct nc_test_data *)out_buf;
496 
            tdp->key1 = htonl(NC_TEST_DATA_KEY1);
497 
            tdp->key2 = htonl(NC_TEST_DATA_KEY2);
498 
            tdp->seq = htonl(i);
499 
            tdp->len = htonl(td_len);
500 
            tot_len = 0;
501 
            dp = (unsigned char *)tdp;
502 
            while (tot_len < td_len) {
503 
                len = td_len - tot_len;
504 
                if ((wlen = write(s, dp, len)) != len) {
505 
                    if (wlen < 0) {
506 
                        test_printf("Slave connection broken\n");
507 
                        perror("write");
508 
                        close(s);
509 
                        return;
510 
                    } else {
511 
                        test_printf("block: %d, short write - only %d of %d\n",
512 
                                    total_packets, wlen, len);
513 
                    }
514 
                }
515 
                tot_len += wlen;
516 
                dp += wlen;
517 
            }
518 
            total_packets++;
519 
        }
520 
        if (need_recv) {
521 
            tdp = (struct nc_test_data *)in_buf;
522 
            res = do_read(s, tdp, td_len);
523 
            if (res != td_len) {
524 
                lost_packets++;
525 
                if (res < 0) {
526 
                    test_printf("Slave connection broken\n");
527 
                    perror("read");
528 
                    break;
529 
                } else {
530 
                    test_printf("Slave timed out after %d buffers [read %d bytes]\n", i, res);
531 
                }
532 
            } else {
533 
                if ((ntohl(tdp->key1) == NC_TEST_DATA_KEY1) &&
534 
                    (ntohl(tdp->key2) == NC_TEST_DATA_KEY2)) {
535 
                    if (ntohl(tdp->seq) != seq) {
536 
                        test_printf("Packets out of sequence - recvd: %d, expected: %d\n",
537 
                                    ntohl(tdp->seq), seq);
538 
                        seq_errors++;
539 
                        if (!need_send) {
540 
                            // Reset sequence to what the slave wants
541 
                            seq = ntohl(tdp->seq);
542 
                        }
543 
                    }
544 
                } else {
545 
                    test_printf("Bad data packet - key: %x/%x, seq: %d\n",
546 
                                ntohl(tdp->key1), ntohl(tdp->key2),
547 
                                ntohl(tdp->seq));
548 
                }
549 
                total_packets++;
550 
            }
551 
            seq++;
552 
            if (seq == nbufs) {
553 
                break;
554 
            }
555 
            if (pause_time && (++pkt_ctr == pause_threshold)) {
556 
                pkt_ctr = 0;
557 
                test_delay(pause_time);
558 
            }
559 
        }
560 
    }
561 
    gettimeofday(&end_time, 0);
562 
    show_results(type_name, &start_time, &end_time, total_packets, buflen,
563 
                 lost_packets, seq_errors);
564 
    // Fetch results record
565 
    if (do_read(s, &results, sizeof(results)) != sizeof(results)) {
566 
        test_printf("No results record sent\n");
567 
    } else {
568 
        show_test_results(&results);
569 
    }
570 
    close(s);
571 
}
572 
 
573 
int
574 
do_set_load(int s, struct sockaddr *slave, int load_level)
575 
{
576 
    struct nc_request req;
577 
    struct nc_reply reply;
578 
    req.type = htonl(NC_REQUEST_SET_LOAD);
579 
    req.nbufs = htonl(load_level);
580 
    nc_message(s, &req, &reply, slave);
581 
    return (reply.response == ntohl(NC_REPLY_ACK));
582 
}
583 
 
584 
int
585 
do_start_idle(int s, struct sockaddr *slave)
586 
{
587 
    struct nc_request req;
588 
    struct nc_reply reply;
589 
    req.type = htonl(NC_REQUEST_START_IDLE);
590 
    nc_message(s, &req, &reply, slave);
591 
    return (reply.response == ntohl(NC_REPLY_ACK));
592 
}
593 
 
594 
void
595 
do_stop_idle(int s, struct sockaddr *slave, int calibrate)
596 
{
597 
    struct nc_request req;
598 
    struct nc_reply reply;
599 
    long long res_idle_count;
600 
    long long adj_count;
601 
    int idle, res_idle_ticks;
602 
    req.type = htonl(NC_REQUEST_STOP_IDLE);
603 
    nc_message(s, &req, &reply, slave);
604 
    if (reply.response == ntohl(NC_REPLY_ACK)) {
605 
        res_idle_ticks = ntohl(reply.misc.idle_results.elapsed_time);
606 
        res_idle_count = ((long long)ntohl(reply.misc.idle_results.count[0]) << 32) |
607 
            ntohl(reply.misc.idle_results.count[1]);
608 
        test_printf("IDLE - ticks: %d, count: %ld",
609 
                    res_idle_ticks, res_idle_count);
610 
        if (calibrate) {
611 
            idle_count = res_idle_count;
612 
            idle_ticks = res_idle_ticks;
613 
        } else {
614 
            adj_count = res_idle_count / res_idle_ticks;
615 
            adj_count *= idle_ticks;
616 
            idle = (int) ((adj_count * 100) / idle_count);
617 
            test_printf(", %d%% idle", idle);
618 
        }
619 
        test_printf("\n");
620 
    } else {
621 
        test_printf("Slave failed on IDLE\n");
622 
    }
623 
}
624 
 
625 
void
626 
do_disconnect(int s, struct sockaddr *slave)
627 
{
628 
    struct nc_request req;
629 
    struct nc_reply reply;
630 
    req.type = htonl(NC_REQUEST_DISCONNECT);
631 
    nc_message(s, &req, &reply, slave);
632 
}
633 
 
634 
static void
635 
nc_master_test(struct sockaddr *slave, int test_tcp, int test_udp,
636 
               int test_slave_loads, int test_master_loads)
637 
{
638 
    int s, i;
639 
    struct sockaddr_storage my_addr;
640 
    struct pause pause_times[] = {
641 
        {0,0}, {1,10}, {5,10}, {10,10}, {1,1} };
642 
 
643 
 
644 
    s = socket(slave->sa_family, SOCK_DGRAM, 0);
645 
    if (s < 0) {
646 
        pexit("datagram socket");
647 
    }
648 
 
649 
    memset(&my_addr, 0, sizeof(my_addr));
650 
    ((struct sockaddr *)&my_addr)->sa_family = slave->sa_family;
651 
#ifndef __linux
652 
    ((struct sockaddr *)&my_addr)->sa_len = slave->sa_len;
653 
#endif
654 
    switch (slave->sa_family) {
655 
    case AF_INET:
656 
        ((struct sockaddr_in *)&my_addr)->sin_addr.s_addr = htonl(INADDR_ANY);
657 
        ((struct sockaddr_in *)&my_addr)->sin_port = htons(NC_MASTER_PORT);
658 
        break;
659 
    case AF_INET6:
660 
        ((struct sockaddr_in6 *)&my_addr)->sin6_addr = in6addr_any;
661 
        ((struct sockaddr_in6 *)&my_addr)->sin6_port = htons(NC_MASTER_PORT);
662 
        break;
663 
    default:
664 
        pexit("strange sockaddr family");
665 
    }
666 
    if (bind(s, (struct sockaddr *) &my_addr, sa_len((struct sockaddr *)&my_addr)) < 0) {
667 
        pexit("UDP bind <main>");
668 
    }
669 
 
670 
    test_printf("================== No load, master at 100%% ========================\n");
671 
    if (test_udp) {
672 
        do_udp_test(s, NC_REQUEST_UDP_ECHO, slave, 640, 1024, 0, 0);
673 
        do_udp_test(s, NC_REQUEST_UDP_SEND, slave, 640, 1024, 0, 0);
674 
        do_udp_test(s, NC_REQUEST_UDP_RECV, slave, 640, 1024, 0, 0);
675 
    }
676 
    if (test_tcp) {
677 
        do_tcp_test(s, NC_REQUEST_TCP_ECHO, slave, 640, 1024, 0, 0);
678 
        do_tcp_test(s, NC_REQUEST_TCP_SEND, slave, 640, 1024, 0, 0);
679 
        do_tcp_test(s, NC_REQUEST_TCP_RECV, slave, 640, 1024, 0, 0);
680 
        do_tcp_test(s, NC_REQUEST_TCP_ECHO, slave, 64, 10240, 0, 0);
681 
    }
682 
 
683 
    if (test_slave_loads) {
684 
        if (do_set_load(s, slave, 0)) {
685 
            test_printf("\n====================== Various slave compute loads ===================\n");
686 
            for (i = 0;  i < 60;  i += 10) {
687 
                test_printf(">>>>>>>>>>>> slave processing load at %d%%\n", i);
688 
                do_set_load(s, slave, i);
689 
                if (test_udp) {
690 
                    do_udp_test(s, NC_REQUEST_UDP_ECHO, slave, 2048, 1024, 0, 0);
691 
                }
692 
                if (test_tcp) {
693 
                    do_tcp_test(s, NC_REQUEST_TCP_ECHO, slave, 2048, 1024, 0, 0);
694 
                }
695 
            }
696 
        }
697 
    }
698 
 
699 
    if (test_master_loads) {
700 
        if (do_start_idle(s, slave)) {
701 
            test_printf("\n====================== Various master loads ===================\n");
702 
            test_printf("Testing IDLE for %d seconds\n", IDLE_TEST_TIME);
703 
            test_delay(IDLE_TEST_TIME*100);
704 
            do_stop_idle(s, slave, true);
705 
            for (i = 0;  i < LENGTH(pause_times);  i++) {
706 
                if (test_udp) {
707 
                    do_start_idle(s, slave);
708 
                    do_udp_test(s, NC_REQUEST_UDP_ECHO, slave, 2048, 1024,
709 
                                pause_times[i].pause_ticks, pause_times[i].pause_threshold);
710 
                    do_stop_idle(s, slave, false);
711 
                }
712 
                if (test_tcp) {
713 
                    do_start_idle(s, slave);
714 
                    do_tcp_test(s, NC_REQUEST_TCP_ECHO, slave, 2048, 1024,
715 
                                pause_times[i].pause_ticks, pause_times[i].pause_threshold);
716 
                    do_stop_idle(s, slave, false);
717 
                }
718 
            }
719 
        }
720 
    }
721 
 
722 
//    do_disconnect(s, slave);
723 
    close(s);
724 
}
725 
 
726 
static void
727 
nc_master(struct test_params *p)
728 
{
729 
    struct sockaddr_storage slave, my_addr;
730 
    struct addrinfo *ai, *addrs, hints;
731 
    char *host = (char *)NULL;
732 
    int i;
733 
    int err = 0;
734 
    int test_tcp = true;
735 
    int test_udp = true;
736 
    int test_slave_loads = true;
737 
    int test_master_loads = true;
738 
 
739 
    for (i = 1;  i < p->argc;  i++) {
740 
        if (p->argv[i][0] == '-') {
741 
            switch (p->argv[i][1]) {
742 
            case 't':
743 
                test_tcp = false;
744 
                break;
745 
            case 'u':
746 
                test_udp = false;
747 
                break;
748 
            case 's':
749 
                test_slave_loads = false;
750 
                break;
751 
            case 'm':
752 
                test_master_loads = false;
753 
                break;
754 
            default:
755 
                test_printf("... invalid switch '%s'\n", p->argv[i]);
756 
                err++;
757 
            }
758 
        } else {
759 
            if (host != (char *)NULL) {
760 
                test_printf("... ignoring argument '%s'\n", p->argv[i]);
761 
                err++;
762 
            } else {
763 
                host = p->argv[i];
764 
            }
765 
        }
766 
    }
767 
    if ((err != 0) || (p->argc < 2) || (host == (char *)NULL)) {
768 
        test_printf("usage: 'master <host> [-t] [-u] [-s] [-m]'\n");
769 
        test_printf("   -t - suppress TCP tests\n");
770 
        test_printf("   -u - suppress UDP tests\n");
771 
        test_printf("   -s - suppress slave load tests\n");
772 
        test_printf("   -m - suppress master load tests\n");
773 
        return;
774 
    }
775 
    bzero(&hints, sizeof(hints));
776 
    hints.ai_family = PF_UNSPEC;
777 
    hints.ai_socktype = SOCK_DGRAM;
778 
    hints.ai_flags = AI_PASSIVE;
779 
    if ((err = getaddrinfo(p->argv[1], _string(NC_SLAVE_PORT), &hints, &addrs)) != EAI_NONE) {
780 
        test_printf("<ERROR> can't getaddrinfo(): %s\n", gai_strerror(err));
781 
        pexit("getaddrinfo");
782 
    }
783 
    // Prepare a socket for each connection type
784 
    ai = addrs;
785 
    while (ai) {
786 
        nc_master_test(ai->ai_addr, test_tcp, test_udp, test_slave_loads, test_master_loads);
787 
        ai = ai->ai_next;
788 
    }
789 
}
790 
 
791 
void
792 
net_test(test_param_t p)
793 
{
794 
    test_printf("Start Network Characterization - MASTER\n");
795 
#ifdef __ECOS
796 
    init_all_network_interfaces();
797 
#endif
798 
    nc_master((struct test_params *)p);
799 
    cyg_test_exit();
800 
}
801 
 
802 
#ifdef __ECOS
803 
void
804 
cyg_start(void)
805 
{
806 
    static struct test_params p;
807 
    // Create a main thread, so we can run the scheduler and have time 'pass'
808 
    cyg_thread_create(10,                // Priority - just a number
809 
                      net_test,          // entry
810 
                      (cyg_addrword_t)&p,// entry parameter
811 
                      "Network test",    // Name
812 
                      &stack[0],         // Stack
813 
                      STACK_SIZE,        // Size
814 
                      &thread_handle,    // Handle
815 
                      &thread_data       // Thread data structure
816 
            );
817 
    cyg_thread_resume(thread_handle);  // Start it
818 
    cyg_scheduler_start();
819 
}
820 
 
821 
#else
822 
 
823 
int
824 
main(int argc, char *argv[])
825 
{
826 
    struct test_params p;
827 
    p.argc = argc;
828 
    p.argv = argv;
829 
    net_test(&p);
830 
}
831 
#endif

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