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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [net/] [common/] [v2_0/] [tests/] [nc6_test_master.c] - Blame information for rev 174

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1 27 unneback 
//==========================================================================
2 
//
3 
//      tests/nc6_test_master.c
4 
//
5 
//      Network characterizations test (master portion) IPv4+IPv6 aware
6 
//
7 
//==========================================================================
8 
//####BSDCOPYRIGHTBEGIN####
9 
//
10 
// -------------------------------------------
11 
//
12 
// Portions of this software may have been derived from OpenBSD or other sources,
13 
// and are covered by the appropriate copyright disclaimers included herein.
14 
//
15 
// -------------------------------------------
16 
//
17 
//####BSDCOPYRIGHTEND####
18 
//==========================================================================
19 
//#####DESCRIPTIONBEGIN####
20 
//
21 
// Author(s):    gthomas
22 
// Contributors: gthomas
23 
// Date:         2000-01-10
24 
// Purpose:
25 
// Description:
26 
//
27 
//
28 
//####DESCRIPTIONEND####
29 
//
30 
//==========================================================================
31 
 
32 
// Network characterization test code - master portion
33 
 
34 
#include "nc_test_framework.h"
35 
 
36 
#ifdef __ECOS
37 
#ifndef CYGPKG_LIBC_STDIO
38 
#define perror(s) diag_printf(#s ": %s\n", strerror(errno))
39 
#endif
40 
#define STACK_SIZE (CYGNUM_HAL_STACK_SIZE_TYPICAL + 0x1000)
41 
static char stack[STACK_SIZE];
42 
static cyg_thread thread_data;
43 
static cyg_handle_t thread_handle;
44 
#endif
45 
 
46 
struct test_params {
47 
    int  argc;
48 
    char **argv;
49 
};
50 
 
51 
#define MAX_BUF 32*1024
52 
static unsigned char in_buf[MAX_BUF], out_buf[MAX_BUF];
53 
 
54 
static int test_seq = 1;
55 
static long long idle_count;
56 
static long      idle_ticks;
57 
#define IDLE_TEST_TIME   10
58 
 
59 
struct pause {
60 
    int pause_ticks;
61 
    int pause_threshold;
62 
};
63 
#define LENGTH(x) (sizeof(x)/sizeof(x[0]))
64 
 
65 
#ifdef __ECOS
66 
extern void
67 
cyg_test_exit(void);
68 
#else
69 
void
70 
cyg_test_exit(void)
71 
{
72 
    test_printf("... Done\n");
73 
    exit(1);
74 
}
75 
#endif
76 
 
77 
#ifdef __ECOS
78 
static void
79 
test_delay(int ticks)
80 
{
81 
    cyg_thread_delay(ticks);
82 
}
83 
 
84 
#else
85 
 
86 
static void
87 
test_delay(int ticks)
88 
{
89 
    usleep(ticks * 10000);
90 
}
91 
#endif
92 
 
93 
void
94 
pexit(char *s)
95 
{
96 
    perror(s);
97 
    cyg_test_exit();
98 
}
99 
 
100 
#ifdef __ECOS
101 
#ifndef CYGPKG_SNMPLIB
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 
#else
111 
int
112 
gettimeofday(struct timeval *tv, struct timezone *tz);
113 
#endif
114 
#endif
115 
void
116 
show_results(const char *msg, struct timeval *start,
117 
             struct timeval *end, int nbufs, int buflen,
118 
             int lost, int seq_errors)
119 
{
120 
    struct timeval tot_time;
121 
#ifndef __ECOS
122 
    double real_time, thru;
123 
    long tot_bytes = nbufs * buflen;
124 
#endif
125 
    timersub(end, start, &tot_time);
126 
    test_printf("%s - %d bufs of %d bytes in %d.%02d seconds",
127 
                msg, nbufs, buflen,
128 
                tot_time.tv_sec, tot_time.tv_usec / 10000);
129 
#ifndef __ECOS
130 
    real_time = tot_time.tv_sec + ((tot_time.tv_usec / 10000) * .01);
131 
    // Compute bytes / second (rounded up)
132 
    thru = tot_bytes / real_time;
133 
    // Convert to Mb / second
134 
    test_printf(" - %.2f KB/S", thru / 1024.0);
135 
    test_printf(" - %.4f Mbit/S (M = 10^6)", thru * 8.0 / 1000000.0);
136 
#endif
137 
    if (lost) {
138 
        test_printf(", %d lost", lost);
139 
    }
140 
    if (seq_errors) {
141 
        test_printf(", %d out of sequence", seq_errors);
142 
    }
143 
    test_printf("\n");
144 
}
145 
 
146 
void
147 
new_test(void)
148 
{
149 
    test_seq++;
150 
}
151 
 
152 
static int
153 
sa_len(struct sockaddr *sa)
154 
{
155 
    switch (sa->sa_family) {
156 
    case AF_INET:
157 
        return sizeof(struct sockaddr_in);
158 
    case AF_INET6:
159 
        return sizeof(struct sockaddr_in6);
160 
    default:
161 
        printf("Unknown socket type: %d\n", sa->sa_family);
162 
        return sizeof(struct sockaddr_storage);
163 
    }
164 
}
165 
 
166 
int
167 
nc_message(int s, struct nc_request *req,
168 
           struct nc_reply *reply, struct sockaddr *slave)
169 
{
170 
    fd_set fds;
171 
    struct timeval timeout;
172 
 
173 
    req->seq = htonl(test_seq);
174 
    if (sendto(s, req, sizeof(*req), 0, slave, sa_len(slave)) < 0) {
175 
        perror("sendto");
176 
        return false;
177 
    }
178 
    FD_ZERO(&fds);
179 
    FD_SET(s, &fds);
180 
    timeout.tv_sec = NC_REPLY_TIMEOUT;
181 
    timeout.tv_usec = 0;
182 
    if (select(s+1, &fds, 0, 0, &timeout) <= 0) {
183 
        test_printf("No response to command\n");
184 
        return false;
185 
    }
186 
    if (recvfrom(s, reply, sizeof(*reply), 0, 0, 0) < 0) {
187 
        perror("recvfrom");
188 
        return false;
189 
    }
190 
    if (reply->seq != req->seq) {
191 
        test_printf("Response out of order - sent: %d, recvd: %d\n",
192 
                    ntohl(req->seq), ntohl(reply->seq));
193 
        return false;
194 
    }
195 
    return true;
196 
}
197 
 
198 
void
199 
show_test_results(struct nc_test_results *results)
200 
{
201 
    if ((ntohl(results->key1) == NC_TEST_RESULT_KEY1) &&
202 
        (ntohl(results->key2) == NC_TEST_RESULT_KEY2) &&
203 
        (ntohl(results->seq) == test_seq)) {
204 
        test_printf("   slave sent %d, recvd %d\n",
205 
                    ntohl(results->nsent), ntohl(results->nrecvd));
206 
    } else {
207 
        test_printf("   ... invalid results - keys: %x/%x, seq: %d/%d\n",
208 
                    ntohl(results->key1), ntohl(results->key2),
209 
                    ntohl(results->seq), test_seq);
210 
    }
211 
}
212 
 
213 
void
214 
do_udp_test(int s1, int type, struct sockaddr *slave,
215 
            int nbufs, int buflen, int pause_time, int pause_threshold)
216 
{
217 
    int i, s, td_len, seq, seq_errors, total_packets;
218 
    struct sockaddr_storage test_chan_master, test_chan_slave;
219 
    struct timeval start_time, end_time;
220 
    struct nc_request req;
221 
    struct nc_reply reply;
222 
    struct nc_test_results results;
223 
    struct nc_test_data *tdp;
224 
    fd_set fds;
225 
    struct timeval timeout;
226 
    int lost_packets = 0;
227 
    int need_send, need_recv;
228 
    const char *type_name;
229 
    int pkt_ctr = 0;
230 
 
231 
    need_recv = true;  need_send = true;  type_name = "UDP echo";
232 
    switch (type) {
233 
    case NC_REQUEST_UDP_RECV:
234 
        need_recv = false;
235 
        need_send = true;
236 
        type_name = "UDP recv";
237 
        break;
238 
    case NC_REQUEST_UDP_SEND:
239 
        need_recv = true;
240 
        need_send = false;
241 
        type_name = "UDP send";
242 
        break;
243 
    case NC_REQUEST_UDP_ECHO:
244 
        break;
245 
    }
246 
 
247 
    new_test();
248 
    req.type = htonl(type);
249 
    req.nbufs = htonl(nbufs);
250 
    req.buflen = htonl(buflen);
251 
    req.slave_port = htonl(NC_TESTING_SLAVE_PORT);
252 
    req.master_port = htonl(NC_TESTING_MASTER_PORT);
253 
    nc_message(s1, &req, &reply, slave);
254 
    if (reply.response != ntohl(NC_REPLY_ACK)) {
255 
        test_printf("Slave denied %s [%d,%d] test\n", type_name, nbufs, buflen);
256 
        return;
257 
    }
258 
 
259 
    s = socket(slave->sa_family, SOCK_DGRAM, 0);
260 
    if (s < 0) {
261 
        pexit("datagram socket");
262 
    }
263 
 
264 
    memset(&test_chan_master, 0, sizeof(test_chan_master));
265 
    ((struct sockaddr *)&test_chan_master)->sa_family = slave->sa_family;
266 
    memcpy(&test_chan_slave, slave, sa_len(slave));
267 
#ifndef __linux
268 
    ((struct sockaddr *)&test_chan_master)->sa_len = slave->sa_len;
269 
#endif
270 
    switch (slave->sa_family) {
271 
    case AF_INET:
272 
        ((struct sockaddr_in *)&test_chan_master)->sin_addr.s_addr = htonl(INADDR_ANY);
273 
        ((struct sockaddr_in *)&test_chan_master)->sin_port = htons(ntohl(req.master_port));
274 
        ((struct sockaddr_in *)&test_chan_slave)->sin_port = htons(ntohl(req.slave_port));
275 
        break;
276 
    case AF_INET6:
277 
        ((struct sockaddr_in6 *)&test_chan_master)->sin6_addr = in6addr_any;
278 
        ((struct sockaddr_in6 *)&test_chan_master)->sin6_port = htons(ntohl(req.master_port));
279 
        ((struct sockaddr_in6 *)&test_chan_slave)->sin6_port = htons(ntohl(req.slave_port));
280 
        break;
281 
    default:
282 
        pexit("strange TCP sockaddr");
283 
    }
284 
 
285 
    if (bind(s, (struct sockaddr *)&test_chan_master,
286 
             sa_len((struct sockaddr *)&test_chan_master)) < 0) {
287 
        perror("UDP bind <do_udp_test>");
288 
        close(s);
289 
        return;
290 
    }
291 
    test_printf("Start %s [%d,%d]", type_name, nbufs, buflen);
292 
    if (pause_time) {
293 
        test_printf(" - %dms delay after %d packet%s\n", pause_time*10,
294 
                    pause_threshold, pause_threshold > 1 ? "s" : "");
295 
    } else {
296 
        test_printf(" - no delays\n");
297 
    }
298 
 
299 
    gettimeofday(&start_time, 0);
300 
    seq = 0;  seq_errors = 0;  total_packets = 0;
301 
    for (i = 0;  i < nbufs;  i++) {
302 
        td_len = buflen + sizeof(struct nc_test_data);
303 
        if (need_send) {
304 
            tdp = (struct nc_test_data *)out_buf;
305 
            tdp->key1 = htonl(NC_TEST_DATA_KEY1);
306 
            tdp->key2 = htonl(NC_TEST_DATA_KEY2);
307 
            tdp->seq = htonl(i);
308 
            tdp->len = htonl(td_len);
309 
            if (sendto(s, tdp, td_len, 0,
310 
                       (struct sockaddr *)&test_chan_slave,
311 
                       sa_len((struct sockaddr *)&test_chan_slave)) < 0) {
312 
                perror("sendto");
313 
                close(s);
314 
                return;
315 
            }
316 
            total_packets++;
317 
        }
318 
        if (need_recv) {
319 
            FD_ZERO(&fds);
320 
            FD_SET(s, &fds);
321 
            timeout.tv_sec = NC_TEST_TIMEOUT;
322 
            timeout.tv_usec = 0;
323 
            if (select(s+1, &fds, 0, 0, &timeout) <= 0) {
324 
                test_printf("Slave timed out after %d buffers\n", i);
325 
                lost_packets++;
326 
            } else {
327 
                tdp = (struct nc_test_data *)in_buf;
328 
                if (recvfrom(s, tdp, td_len, 0, 0, 0) < 0) {
329 
                    perror("recvfrom");
330 
                    close(s);
331 
                    return;
332 
                }
333 
                if ((ntohl(tdp->key1) == NC_TEST_DATA_KEY1) &&
334 
                    (ntohl(tdp->key2) == NC_TEST_DATA_KEY2)) {
335 
                    if (ntohl(tdp->seq) != seq) {
336 
                        test_printf("Packets out of sequence - recvd: %d, expected: %d\n",
337 
                                    ntohl(tdp->seq), seq);
338 
                        seq_errors++;
339 
                        if (!need_send) {
340 
                            // Reset sequence to what the slave wants
341 
                            seq = ntohl(tdp->seq);
342 
                        }
343 
                    }
344 
                } else {
345 
                    test_printf("Bad data packet - key: %x/%x, seq: %d\n",
346 
                                ntohl(tdp->key1), ntohl(tdp->key2),
347 
                                ntohl(tdp->seq));
348 
                }
349 
                total_packets++;
350 
            }
351 
            seq++;
352 
            if (seq == nbufs) {
353 
                break;
354 
            }
355 
            if (pause_time && (++pkt_ctr == pause_threshold)) {
356 
                pkt_ctr = 0;
357 
                test_delay(pause_time);
358 
            }
359 
        }
360 
    }
361 
    gettimeofday(&end_time, 0);
362 
    show_results(type_name, &start_time, &end_time, total_packets, buflen,
363 
                 lost_packets, seq_errors);
364 
    // Fetch results record
365 
    FD_ZERO(&fds);
366 
    FD_SET(s, &fds);
367 
    timeout.tv_sec = NC_RESULTS_TIMEOUT;
368 
    timeout.tv_usec = 0;
369 
    if (select(s+1, &fds, 0, 0, &timeout) <= 0) {
370 
        test_printf("No results record sent\n");
371 
    } else {
372 
        if (recvfrom(s, &results, sizeof(results), 0, 0, 0) < 0) {
373 
            perror("recvfrom");
374 
        }
375 
        show_test_results(&results);
376 
    }
377 
    close(s);
378 
}
379 
 
380 
//
381 
// Read data from a stream, accounting for the fact that packet 'boundaries'
382 
// are not preserved.  This can also timeout (which would probably wreck the
383 
// data boundaries).
384 
//
385 
 
386 
int
387 
do_read(int fd, void *buf, int buflen)
388 
{
389 
    char *p = (char *)buf;
390 
    int len = buflen;
391 
    int res;
392 
    while (len) {
393 
        res = read(fd, p, len);
394 
        if (res < 0) {
395 
            perror("read");
396 
        } else {
397 
            len -= res;
398 
            p += res;
399 
            if (res == 0) {
400 
                break;
401 
            }
402 
        }
403 
    }
404 
    return (buflen - len);
405 
}
406 
 
407 
void
408 
do_tcp_test(int s1, int type, struct sockaddr *slave,
409 
            int nbufs, int buflen, int pause_time, int pause_threshold)
410 
{
411 
    int i, s, td_len, tot_len, wlen, len, seq, seq_errors, total_packets, res;
412 
    struct sockaddr_storage test_chan_slave;
413 
    struct timeval start_time, end_time;
414 
    struct nc_request req;
415 
    struct nc_reply reply;
416 
    struct nc_test_results results;
417 
    struct nc_test_data *tdp;
418 
    int lost_packets = 0;
419 
    int conn_failures = 0;
420 
    int need_send, need_recv;
421 
    const char *type_name;
422 
    int pkt_ctr = 0;
423 
    unsigned char *dp;
424 
 
425 
    need_recv = true;  need_send = true;  type_name = "TCP echo";
426 
    switch (type) {
427 
    case NC_REQUEST_TCP_RECV:
428 
        need_recv = false;
429 
        need_send = true;
430 
        type_name = "TCP recv";
431 
        break;
432 
    case NC_REQUEST_TCP_SEND:
433 
        need_recv = true;
434 
        need_send = false;
435 
        type_name = "TCP send";
436 
        break;
437 
    case NC_REQUEST_TCP_ECHO:
438 
        break;
439 
    }
440 
 
441 
    new_test();
442 
    req.type = htonl(type);
443 
    req.nbufs = htonl(nbufs);
444 
    req.buflen = htonl(buflen);
445 
    req.slave_port = htonl(NC_TESTING_SLAVE_PORT);
446 
    req.master_port = htonl(NC_TESTING_MASTER_PORT);
447 
    nc_message(s1, &req, &reply, slave);
448 
    if (reply.response != ntohl(NC_REPLY_ACK)) {
449 
        test_printf("Slave denied %s [%d,%d] test\n", type_name, nbufs, buflen);
450 
        return;
451 
    }
452 
 
453 
    s = socket(slave->sa_family, SOCK_STREAM, 0);
454 
    if (s < 0) {
455 
        pexit("datagram socket");
456 
    }
457 
 
458 
    test_printf("Start %s [%d,%d]", type_name, nbufs, buflen);
459 
    if (pause_time) {
460 
        test_printf(" - %dms delay after %d packet%s\n", pause_time*10,
461 
                    pause_threshold, pause_threshold > 1 ? "s" : "");
462 
    } else {
463 
        test_printf(" - no delays\n");
464 
    }
465 
 
466 
    test_delay(3*100);
467 
    memcpy(&test_chan_slave, slave, sa_len(slave));
468 
    switch (slave->sa_family) {
469 
    case AF_INET:
470 
        ((struct sockaddr_in *)&test_chan_slave)->sin_port = htons(ntohl(req.slave_port));
471 
        break;
472 
    case AF_INET6:
473 
        ((struct sockaddr_in6 *)&test_chan_slave)->sin6_port = htons(ntohl(req.slave_port));
474 
        break;
475 
    default:
476 
        pexit("strange TCP sockaddr");
477 
    }
478 
    while (connect(s, (struct sockaddr *)&test_chan_slave, sa_len(slave)) < 0) {
479 
        perror("Can't connect to slave");
480 
        if (++conn_failures > MAX_ERRORS) {
481 
            test_printf("Too many connection failures - giving up\n");
482 
            return;
483 
        }
484 
        if (errno == ECONNREFUSED) {
485 
            // Give the slave a little time
486 
            test_delay(100);  // 1 second
487 
        } else {
488 
            return;
489 
        }
490 
    }
491 
 
492 
    gettimeofday(&start_time, 0);
493 
    seq = 0;  seq_errors = 0;  total_packets = 0;
494 
    for (i = 0;  i < nbufs;  i++) {
495 
        td_len = buflen + sizeof(struct nc_test_data);
496 
        if (need_send) {
497 
            tdp = (struct nc_test_data *)out_buf;
498 
            tdp->key1 = htonl(NC_TEST_DATA_KEY1);
499 
            tdp->key2 = htonl(NC_TEST_DATA_KEY2);
500 
            tdp->seq = htonl(i);
501 
            tdp->len = htonl(td_len);
502 
            tot_len = 0;
503 
            dp = (unsigned char *)tdp;
504 
            while (tot_len < td_len) {
505 
                len = td_len - tot_len;
506 
                if ((wlen = write(s, dp, len)) != len) {
507 
                    if (wlen < 0) {
508 
                        test_printf("Slave connection broken\n");
509 
                        perror("write");
510 
                        close(s);
511 
                        return;
512 
                    } else {
513 
                        test_printf("block: %d, short write - only %d of %d\n",
514 
                                    total_packets, wlen, len);
515 
                    }
516 
                }
517 
                tot_len += wlen;
518 
                dp += wlen;
519 
            }
520 
            total_packets++;
521 
        }
522 
        if (need_recv) {
523 
            tdp = (struct nc_test_data *)in_buf;
524 
            res = do_read(s, tdp, td_len);
525 
            if (res != td_len) {
526 
                lost_packets++;
527 
                if (res < 0) {
528 
                    test_printf("Slave connection broken\n");
529 
                    perror("read");
530 
                    break;
531 
                } else {
532 
                    test_printf("Slave timed out after %d buffers [read %d bytes]\n", i, res);
533 
                }
534 
            } else {
535 
                if ((ntohl(tdp->key1) == NC_TEST_DATA_KEY1) &&
536 
                    (ntohl(tdp->key2) == NC_TEST_DATA_KEY2)) {
537 
                    if (ntohl(tdp->seq) != seq) {
538 
                        test_printf("Packets out of sequence - recvd: %d, expected: %d\n",
539 
                                    ntohl(tdp->seq), seq);
540 
                        seq_errors++;
541 
                        if (!need_send) {
542 
                            // Reset sequence to what the slave wants
543 
                            seq = ntohl(tdp->seq);
544 
                        }
545 
                    }
546 
                } else {
547 
                    test_printf("Bad data packet - key: %x/%x, seq: %d\n",
548 
                                ntohl(tdp->key1), ntohl(tdp->key2),
549 
                                ntohl(tdp->seq));
550 
                }
551 
                total_packets++;
552 
            }
553 
            seq++;
554 
            if (seq == nbufs) {
555 
                break;
556 
            }
557 
            if (pause_time && (++pkt_ctr == pause_threshold)) {
558 
                pkt_ctr = 0;
559 
                test_delay(pause_time);
560 
            }
561 
        }
562 
    }
563 
    gettimeofday(&end_time, 0);
564 
    show_results(type_name, &start_time, &end_time, total_packets, buflen,
565 
                 lost_packets, seq_errors);
566 
    // Fetch results record
567 
    if (do_read(s, &results, sizeof(results)) != sizeof(results)) {
568 
        test_printf("No results record sent\n");
569 
    } else {
570 
        show_test_results(&results);
571 
    }
572 
    close(s);
573 
}
574 
 
575 
int
576 
do_set_load(int s, struct sockaddr *slave, int load_level)
577 
{
578 
    struct nc_request req;
579 
    struct nc_reply reply;
580 
    req.type = htonl(NC_REQUEST_SET_LOAD);
581 
    req.nbufs = htonl(load_level);
582 
    nc_message(s, &req, &reply, slave);
583 
    return (reply.response == ntohl(NC_REPLY_ACK));
584 
}
585 
 
586 
int
587 
do_start_idle(int s, struct sockaddr *slave)
588 
{
589 
    struct nc_request req;
590 
    struct nc_reply reply;
591 
    req.type = htonl(NC_REQUEST_START_IDLE);
592 
    nc_message(s, &req, &reply, slave);
593 
    return (reply.response == ntohl(NC_REPLY_ACK));
594 
}
595 
 
596 
void
597 
do_stop_idle(int s, struct sockaddr *slave, int calibrate)
598 
{
599 
    struct nc_request req;
600 
    struct nc_reply reply;
601 
    long long res_idle_count;
602 
    long long adj_count;
603 
    int idle, res_idle_ticks;
604 
    req.type = htonl(NC_REQUEST_STOP_IDLE);
605 
    nc_message(s, &req, &reply, slave);
606 
    if (reply.response == ntohl(NC_REPLY_ACK)) {
607 
        res_idle_ticks = ntohl(reply.misc.idle_results.elapsed_time);
608 
        res_idle_count = ((long long)ntohl(reply.misc.idle_results.count[0]) << 32) |
609 
            ntohl(reply.misc.idle_results.count[1]);
610 
        test_printf("IDLE - ticks: %d, count: %ld",
611 
                    res_idle_ticks, res_idle_count);
612 
        if (calibrate) {
613 
            idle_count = res_idle_count;
614 
            idle_ticks = res_idle_ticks;
615 
        } else {
616 
            adj_count = res_idle_count / res_idle_ticks;
617 
            adj_count *= idle_ticks;
618 
            idle = (int) ((adj_count * 100) / idle_count);
619 
            test_printf(", %d%% idle", idle);
620 
        }
621 
        test_printf("\n");
622 
    } else {
623 
        test_printf("Slave failed on IDLE\n");
624 
    }
625 
}
626 
 
627 
void
628 
do_disconnect(int s, struct sockaddr *slave)
629 
{
630 
    struct nc_request req;
631 
    struct nc_reply reply;
632 
    req.type = htonl(NC_REQUEST_DISCONNECT);
633 
    nc_message(s, &req, &reply, slave);
634 
}
635 
 
636 
static void
637 
nc_master_test(struct sockaddr *slave, int test_tcp, int test_udp,
638 
               int test_slave_loads, int test_master_loads)
639 
{
640 
    int s, i;
641 
    struct sockaddr_storage my_addr;
642 
    struct pause pause_times[] = {
643 
        {0,0}, {1,10}, {5,10}, {10,10}, {1,1} };
644 
 
645 
 
646 
    s = socket(slave->sa_family, SOCK_DGRAM, 0);
647 
    if (s < 0) {
648 
        pexit("datagram socket");
649 
    }
650 
 
651 
    memset(&my_addr, 0, sizeof(my_addr));
652 
    ((struct sockaddr *)&my_addr)->sa_family = slave->sa_family;
653 
#ifndef __linux
654 
    ((struct sockaddr *)&my_addr)->sa_len = slave->sa_len;
655 
#endif
656 
    switch (slave->sa_family) {
657 
    case AF_INET:
658 
        ((struct sockaddr_in *)&my_addr)->sin_addr.s_addr = htonl(INADDR_ANY);
659 
        ((struct sockaddr_in *)&my_addr)->sin_port = htons(NC_MASTER_PORT);
660 
        break;
661 
    case AF_INET6:
662 
        ((struct sockaddr_in6 *)&my_addr)->sin6_addr = in6addr_any;
663 
        ((struct sockaddr_in6 *)&my_addr)->sin6_port = htons(NC_MASTER_PORT);
664 
        break;
665 
    default:
666 
        pexit("strange sockaddr family");
667 
    }
668 
    if (bind(s, (struct sockaddr *) &my_addr, sa_len((struct sockaddr *)&my_addr)) < 0) {
669 
        pexit("UDP bind <main>");
670 
    }
671 
 
672 
    test_printf("================== No load, master at 100%% ========================\n");
673 
    if (test_udp) {
674 
        do_udp_test(s, NC_REQUEST_UDP_ECHO, slave, 640, 1024, 0, 0);
675 
        do_udp_test(s, NC_REQUEST_UDP_SEND, slave, 640, 1024, 0, 0);
676 
        do_udp_test(s, NC_REQUEST_UDP_RECV, slave, 640, 1024, 0, 0);
677 
    }
678 
    if (test_tcp) {
679 
        do_tcp_test(s, NC_REQUEST_TCP_ECHO, slave, 640, 1024, 0, 0);
680 
        do_tcp_test(s, NC_REQUEST_TCP_SEND, slave, 640, 1024, 0, 0);
681 
        do_tcp_test(s, NC_REQUEST_TCP_RECV, slave, 640, 1024, 0, 0);
682 
        do_tcp_test(s, NC_REQUEST_TCP_ECHO, slave, 64, 10240, 0, 0);
683 
    }
684 
 
685 
    if (test_slave_loads) {
686 
        if (do_set_load(s, slave, 0)) {
687 
            test_printf("\n====================== Various slave compute loads ===================\n");
688 
            for (i = 0;  i < 60;  i += 10) {
689 
                test_printf(">>>>>>>>>>>> slave processing load at %d%%\n", i);
690 
                do_set_load(s, slave, i);
691 
                if (test_udp) {
692 
                    do_udp_test(s, NC_REQUEST_UDP_ECHO, slave, 2048, 1024, 0, 0);
693 
                }
694 
                if (test_tcp) {
695 
                    do_tcp_test(s, NC_REQUEST_TCP_ECHO, slave, 2048, 1024, 0, 0);
696 
                }
697 
            }
698 
        }
699 
    }
700 
 
701 
    if (test_master_loads) {
702 
        if (do_start_idle(s, slave)) {
703 
            test_printf("\n====================== Various master loads ===================\n");
704 
            test_printf("Testing IDLE for %d seconds\n", IDLE_TEST_TIME);
705 
            test_delay(IDLE_TEST_TIME*100);
706 
            do_stop_idle(s, slave, true);
707 
            for (i = 0;  i < LENGTH(pause_times);  i++) {
708 
                if (test_udp) {
709 
                    do_start_idle(s, slave);
710 
                    do_udp_test(s, NC_REQUEST_UDP_ECHO, slave, 2048, 1024,
711 
                                pause_times[i].pause_ticks, pause_times[i].pause_threshold);
712 
                    do_stop_idle(s, slave, false);
713 
                }
714 
                if (test_tcp) {
715 
                    do_start_idle(s, slave);
716 
                    do_tcp_test(s, NC_REQUEST_TCP_ECHO, slave, 2048, 1024,
717 
                                pause_times[i].pause_ticks, pause_times[i].pause_threshold);
718 
                    do_stop_idle(s, slave, false);
719 
                }
720 
            }
721 
        }
722 
    }
723 
 
724 
//    do_disconnect(s, slave);
725 
    close(s);
726 
}
727 
 
728 
static void
729 
nc_master(struct test_params *p)
730 
{
731 
    struct sockaddr_storage slave, my_addr;
732 
    struct addrinfo *ai, *addrs, hints;
733 
    char *host = (char *)NULL;
734 
    int i;
735 
    int err = 0;
736 
    int test_tcp = true;
737 
    int test_udp = true;
738 
    int test_slave_loads = true;
739 
    int test_master_loads = true;
740 
 
741 
    for (i = 1;  i < p->argc;  i++) {
742 
        if (p->argv[i][0] == '-') {
743 
            switch (p->argv[i][1]) {
744 
            case 't':
745 
                test_tcp = false;
746 
                break;
747 
            case 'u':
748 
                test_udp = false;
749 
                break;
750 
            case 's':
751 
                test_slave_loads = false;
752 
                break;
753 
            case 'm':
754 
                test_master_loads = false;
755 
                break;
756 
            default:
757 
                test_printf("... invalid switch '%s'\n", p->argv[i]);
758 
                err++;
759 
            }
760 
        } else {
761 
            if (host != (char *)NULL) {
762 
                test_printf("... ignoring argument '%s'\n", p->argv[i]);
763 
                err++;
764 
            } else {
765 
                host = p->argv[i];
766 
            }
767 
        }
768 
    }
769 
    if ((err != 0) || (p->argc < 2) || (host == (char *)NULL)) {
770 
        test_printf("usage: 'master <host> [-t] [-u] [-s] [-m]'\n");
771 
        test_printf("   -t - suppress TCP tests\n");
772 
        test_printf("   -u - suppress UDP tests\n");
773 
        test_printf("   -s - suppress slave load tests\n");
774 
        test_printf("   -m - suppress master load tests\n");
775 
        return;
776 
    }
777 
    bzero(&hints, sizeof(hints));
778 
    hints.ai_family = PF_UNSPEC;
779 
    hints.ai_socktype = SOCK_DGRAM;
780 
    hints.ai_flags = AI_PASSIVE;
781 
    if ((err = getaddrinfo(p->argv[1], _string(NC_SLAVE_PORT), &hints, &addrs)) != EAI_NONE) {
782 
        test_printf("<ERROR> can't getaddrinfo(): %s\n", gai_strerror(err));
783 
        pexit("getaddrinfo");
784 
    }
785 
    // Prepare a socket for each connection type
786 
    ai = addrs;
787 
    while (ai) {
788 
        nc_master_test(ai->ai_addr, test_tcp, test_udp, test_slave_loads, test_master_loads);
789 
        ai = ai->ai_next;
790 
    }
791 
}
792 
 
793 
void
794 
net_test(test_param_t p)
795 
{
796 
    test_printf("Start Network Characterization - MASTER\n");
797 
#ifdef __ECOS
798 
    init_all_network_interfaces();
799 
#endif
800 
    nc_master((struct test_params *)p);
801 
    cyg_test_exit();
802 
}
803 
 
804 
#ifdef __ECOS
805 
void
806 
cyg_start(void)
807 
{
808 
    static struct test_params p;
809 
    // Create a main thread, so we can run the scheduler and have time 'pass'
810 
    cyg_thread_create(10,                // Priority - just a number
811 
                      net_test,          // entry
812 
                      (cyg_addrword_t)&p,// entry parameter
813 
                      "Network test",    // Name
814 
                      &stack[0],         // Stack
815 
                      STACK_SIZE,        // Size
816 
                      &thread_handle,    // Handle
817 
                      &thread_data       // Thread data structure
818 
            );
819 
    cyg_thread_resume(thread_handle);  // Start it
820 
    cyg_scheduler_start();
821 
}
822 
 
823 
#else
824 
 
825 
int
826 
main(int argc, char *argv[])
827 
{
828 
    struct test_params p;
829 
    p.argc = argc;
830 
    p.argv = argv;
831 
    net_test(&p);
832 
}
833 
#endif

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