Annotation of src/usr.bin/tcpbench/tcpbench.c, Revision 1.70
1.70 ! bluhm 1: /* $OpenBSD: tcpbench.c,v 1.69 2023/05/22 12:53:04 tobhe Exp $ */
1.52 bluhm 2:
1.1 djm 3: /*
4: * Copyright (c) 2008 Damien Miller <djm@mindrot.org>
1.20 claudio 5: * Copyright (c) 2011 Christiano F. Haesbaert <haesbaert@haesbaert.org>
1.1 djm 6: *
7: * Permission to use, copy, modify, and distribute this software for any
8: * purpose with or without fee is hereby granted, provided that the above
9: * copyright notice and this permission notice appear in all copies.
10: *
11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18: */
19:
20: #include <sys/types.h>
21: #include <sys/time.h>
22: #include <sys/socket.h>
23: #include <sys/socketvar.h>
1.11 claudio 24: #include <sys/resource.h>
1.20 claudio 25: #include <sys/queue.h>
1.51 claudio 26: #include <sys/un.h>
1.1 djm 27:
28: #include <net/route.h>
29:
30: #include <netinet/in.h>
31: #include <netinet/ip.h>
32: #include <netinet/tcp.h>
33: #include <netinet/tcp_timer.h>
34: #include <netinet/tcp_fsm.h>
35: #include <netinet/in_pcb.h>
36: #include <netinet/tcp_var.h>
37:
38: #include <arpa/inet.h>
39:
40: #include <unistd.h>
41: #include <limits.h>
42: #include <stdlib.h>
43: #include <stdio.h>
44: #include <string.h>
45: #include <errno.h>
1.20 claudio 46: #include <event.h>
1.1 djm 47: #include <netdb.h>
48: #include <signal.h>
49: #include <err.h>
50: #include <fcntl.h>
51: #include <poll.h>
1.57 deraadt 52: #include <paths.h>
1.62 procter 53: #include <math.h>
1.1 djm 54:
1.11 claudio 55: #define DEFAULT_PORT "12345"
56: #define DEFAULT_STATS_INTERVAL 1000 /* ms */
1.20 claudio 57: #define DEFAULT_BUF (256 * 1024)
58: #define DEFAULT_UDP_PKT (1500 - 28) /* TODO don't hardcode this */
59: #define TCP_MODE !ptb->uflag
60: #define UDP_MODE ptb->uflag
1.11 claudio 61: #define MAX_FD 1024
1.1 djm 62:
1.20 claudio 63: /* Our tcpbench globals */
64: struct {
1.64 bluhm 65: int Dflag; /* Socket debug */
1.54 bluhm 66: int Sflag; /* Socket buffer size */
1.20 claudio 67: u_int rflag; /* Report rate (ms) */
68: int sflag; /* True if server */
1.24 haesbaer 69: int Tflag; /* ToS if != -1 */
1.20 claudio 70: int vflag; /* Verbose */
71: int uflag; /* UDP mode */
1.51 claudio 72: int Uflag; /* UNIX (AF_LOCAL) mode */
73: int Rflag; /* randomize client write size */
1.20 claudio 74: char **kvars; /* Kvm enabled vars */
75: char *dummybuf; /* IO buffer */
76: size_t dummybuf_len; /* IO buffer len */
77: } tcpbench, *ptb;
1.1 djm 78:
1.33 haesbaer 79: struct tcpservsock {
80: struct event ev;
81: struct event evt;
82: int fd;
83: };
84:
1.20 claudio 85: /* stats for a single tcp connection, udp uses only one */
1.1 djm 86: struct statctx {
1.20 claudio 87: TAILQ_ENTRY(statctx) entry;
1.11 claudio 88: struct timeval t_start, t_last;
1.1 djm 89: unsigned long long bytes;
1.20 claudio 90: int fd;
91: char *buf;
92: size_t buflen;
93: struct event ev;
94: /* TCP only */
1.33 haesbaer 95: struct tcpservsock *tcp_ts;
1.20 claudio 96: /* UDP only */
97: u_long udp_slice_pkts;
1.1 djm 98: };
99:
1.62 procter 100: struct statctx *udp_sc; /* singleton */
101:
1.20 claudio 102: static void signal_handler(int, short, void *);
103: static void saddr_ntop(const struct sockaddr *, socklen_t, char *, size_t);
104: static void set_slice_timer(int);
1.58 bluhm 105: static void print_tcp_header(void);
1.20 claudio 106: static void list_kvars(void);
107: static void check_kvar(const char *);
108: static char ** check_prepare_kvars(char *);
109: static void stats_prepare(struct statctx *);
1.62 procter 110: static void summary_display(void);
1.20 claudio 111: static void tcp_stats_display(unsigned long long, long double, float,
1.67 claudio 112: struct statctx *, struct tcp_info *);
1.20 claudio 113: static void tcp_process_slice(int, short, void *);
114: static void tcp_server_handle_sc(int, short, void *);
115: static void tcp_server_accept(int, short, void *);
1.62 procter 116: static void server_init(struct addrinfo *);
1.20 claudio 117: static void client_handle_sc(int, short, void *);
1.62 procter 118: static void client_init(struct addrinfo *, int, struct addrinfo *);
1.20 claudio 119: static int clock_gettime_tv(clockid_t, struct timeval *);
120: static void udp_server_handle_sc(int, short, void *);
121: static void udp_process_slice(int, short, void *);
1.24 haesbaer 122: static int map_tos(char *, int *);
1.62 procter 123: static void quit(int, short, void *);
124: static void wrapup(int);
125:
1.11 claudio 126: /*
127: * We account the mainstats here, that is the stats
128: * for all connections, all variables starting with slice
129: * are used to account information for the timeslice
130: * between each output. Peak variables record the highest
131: * between all slices so far.
132: */
133: static struct {
1.62 procter 134: struct timeval t_first; /* first connect / packet */
1.70 ! bluhm 135: unsigned long long total_bytes; /* bytes since t_first */
1.62 procter 136: unsigned long long n_slices; /* slices since start */
137: unsigned long long slice_bytes; /* bytes since slice reset */
1.11 claudio 138: long double peak_mbps; /* peak mbps so far */
1.62 procter 139: long double floor_mbps; /* floor mbps so far */
140: long double mean_mbps; /* mean mbps so far */
141: long double nvariance_mbps; /* for online std dev */
1.58 bluhm 142: int nconns; /* connected clients */
1.20 claudio 143: struct event timer; /* process timer */
1.62 procter 144: const char *host; /* remote server for display */
1.11 claudio 145: } mainstats;
146:
1.20 claudio 147: /* When adding variables, also add to tcp_stats_display() */
1.1 djm 148: static const char *allowed_kvars[] = {
1.67 claudio 149: "last_ack_recv",
150: "last_ack_sent",
151: "last_data_recv",
152: "last_data_sent",
153: "max_sndwnd",
154: "options",
155: "rcv_adv",
156: "rcv_mss",
157: "rcv_nxt",
158: "rcv_ooopack",
159: "rcv_space",
160: "rcv_up",
161: "rcv_wscale",
162: "rfbuf_cnt",
163: "rfbuf_ts",
164: "rtt",
165: "rttmin",
166: "rttvar",
167: "snd_cwnd",
168: "snd_max",
169: "snd_mss",
170: "snd_nxt",
171: "snd_rexmitpack",
172: "snd_ssthresh",
173: "snd_una",
174: "snd_wl1",
175: "snd_wl2",
176: "snd_wnd",
177: "snd_wscale",
178: "snd_zerowin",
179: "so_rcv_sb_cc",
180: "so_rcv_sb_hiwat",
181: "so_rcv_sb_lowat",
182: "so_rcv_sb_wat",
183: "so_snd_sb_cc",
184: "so_snd_sb_hiwat",
185: "so_snd_sb_lowat",
186: "so_snd_sb_wat",
187: "ts_recent",
188: "ts_recent_age",
1.1 djm 189: NULL
190: };
191:
1.20 claudio 192: TAILQ_HEAD(, statctx) sc_queue;
1.1 djm 193:
194: static void __dead
195: usage(void)
196: {
197: fprintf(stderr,
1.6 jmc 198: "usage: tcpbench -l\n"
1.64 bluhm 199: " tcpbench [-46DRUuv] [-B buf] [-b sourceaddr] [-k kvars] [-n connections]\n"
1.25 haesbaer 200: " [-p port] [-r interval] [-S space] [-T toskeyword]\n"
1.30 henning 201: " [-t secs] [-V rtable] hostname\n"
1.64 bluhm 202: " tcpbench -s [-46DUuv] [-B buf] [-k kvars] [-p port] [-r interval]\n"
1.51 claudio 203: " [-S space] [-T toskeyword] [-V rtable] [hostname]\n");
1.1 djm 204: exit(1);
205: }
206:
207: static void
1.20 claudio 208: signal_handler(int sig, short event, void *bula)
209: {
210: /*
211: * signal handler rules don't apply, libevent decouples for us
212: */
213: switch (sig) {
1.63 sthen 214: case SIGINFO:
215: printf("\n");
216: wrapup(-1);
217: break;
1.20 claudio 218: case SIGINT:
1.62 procter 219: printf("\n");
220: wrapup(0);
221: break; /* NOTREACHED */
1.20 claudio 222: case SIGTERM:
223: case SIGHUP:
224: warnx("Terminated by signal %d", sig);
1.62 procter 225: wrapup(0);
1.20 claudio 226: break; /* NOTREACHED */
227: default:
228: errx(1, "unexpected signal %d", sig);
229: break; /* NOTREACHED */
230: }
231: }
232:
233: static void
1.1 djm 234: saddr_ntop(const struct sockaddr *addr, socklen_t alen, char *buf, size_t len)
235: {
236: char hbuf[NI_MAXHOST], pbuf[NI_MAXSERV];
237: int herr;
238:
1.51 claudio 239: if (addr->sa_family == AF_UNIX) {
240: struct sockaddr_un *sun = (struct sockaddr_un *)addr;
241: snprintf(buf, len, "%s", sun->sun_path);
242: return;
243: }
1.3 djm 244: if ((herr = getnameinfo(addr, alen, hbuf, sizeof(hbuf),
245: pbuf, sizeof(pbuf), NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
1.1 djm 246: if (herr == EAI_SYSTEM)
247: err(1, "getnameinfo");
248: else
249: errx(1, "getnameinfo: %s", gai_strerror(herr));
250: }
251: snprintf(buf, len, "[%s]:%s", hbuf, pbuf);
252: }
253:
254: static void
1.20 claudio 255: set_slice_timer(int on)
1.11 claudio 256: {
1.20 claudio 257: struct timeval tv;
1.11 claudio 258:
1.20 claudio 259: if (ptb->rflag == 0)
1.11 claudio 260: return;
261:
1.20 claudio 262: if (on) {
263: if (evtimer_pending(&mainstats.timer, NULL))
264: return;
265: /* XXX Is there a better way to do this ? */
266: tv.tv_sec = ptb->rflag / 1000;
267: tv.tv_usec = (ptb->rflag % 1000) * 1000;
1.58 bluhm 268:
1.20 claudio 269: evtimer_add(&mainstats.timer, &tv);
270: } else if (evtimer_pending(&mainstats.timer, NULL))
271: evtimer_del(&mainstats.timer);
272: }
1.58 bluhm 273:
1.20 claudio 274: static int
275: clock_gettime_tv(clockid_t clock_id, struct timeval *tv)
276: {
277: struct timespec ts;
278:
279: if (clock_gettime(clock_id, &ts) == -1)
280: return (-1);
1.58 bluhm 281:
1.20 claudio 282: TIMESPEC_TO_TIMEVAL(tv, &ts);
1.58 bluhm 283:
1.20 claudio 284: return (0);
1.11 claudio 285: }
286:
287: static void
1.20 claudio 288: print_tcp_header(void)
1.11 claudio 289: {
290: char **kv;
1.59 bluhm 291:
292: if (ptb->rflag == 0)
293: return;
1.20 claudio 294:
1.11 claudio 295: printf("%12s %14s %12s %8s ", "elapsed_ms", "bytes", "mbps",
296: "bwidth");
1.58 bluhm 297: for (kv = ptb->kvars; ptb->kvars != NULL && *kv != NULL; kv++)
1.20 claudio 298: printf("%s%s", kv != ptb->kvars ? "," : "", *kv);
1.11 claudio 299: printf("\n");
300: }
301:
302: static void
1.1 djm 303: check_kvar(const char *var)
304: {
1.16 deraadt 305: u_int i;
1.1 djm 306:
307: for (i = 0; allowed_kvars[i] != NULL; i++)
308: if (strcmp(allowed_kvars[i], var) == 0)
309: return;
310: errx(1, "Unrecognised kvar: %s", var);
311: }
312:
313: static void
314: list_kvars(void)
315: {
1.16 deraadt 316: u_int i;
1.1 djm 317:
1.26 haesbaer 318: printf("Supported kernel variables:\n");
1.1 djm 319: for (i = 0; allowed_kvars[i] != NULL; i++)
1.26 haesbaer 320: printf("\t%s\n", allowed_kvars[i]);
1.1 djm 321: }
322:
323: static char **
324: check_prepare_kvars(char *list)
325: {
326: char *item, **ret = NULL;
1.16 deraadt 327: u_int n = 0;
1.1 djm 328:
329: while ((item = strsep(&list, ", \t\n")) != NULL) {
330: check_kvar(item);
1.43 lteo 331: if ((ret = reallocarray(ret, (++n + 1), sizeof(*ret))) == NULL)
1.55 benno 332: err(1, "reallocarray(kvars)");
1.1 djm 333: if ((ret[n - 1] = strdup(item)) == NULL)
1.55 benno 334: err(1, "strdup");
1.1 djm 335: ret[n] = NULL;
336: }
1.20 claudio 337: return (ret);
1.1 djm 338: }
339:
340: static void
1.20 claudio 341: stats_prepare(struct statctx *sc)
1.1 djm 342: {
1.20 claudio 343: sc->buf = ptb->dummybuf;
344: sc->buflen = ptb->dummybuf_len;
345:
346: if (clock_gettime_tv(CLOCK_MONOTONIC, &sc->t_start) == -1)
347: err(1, "clock_gettime_tv");
1.1 djm 348: sc->t_last = sc->t_start;
1.62 procter 349: if (!timerisset(&mainstats.t_first))
350: mainstats.t_first = sc->t_start;
351: }
352:
353: static void
354: summary_display(void)
355: {
356: struct timeval t_cur, t_diff;
357: long double std_dev;
358: unsigned long long total_elapsed;
359: char *direction;
360:
361: if (!ptb->sflag) {
362: direction = "sent";
363: printf("--- %s tcpbench statistics ---\n", mainstats.host);
364: } else {
365: direction = "received";
366: printf("--- tcpbench server statistics ---\n");
367: }
368:
369: std_dev = sqrtl(mainstats.nvariance_mbps / mainstats.n_slices);
370:
371: if (clock_gettime_tv(CLOCK_MONOTONIC, &t_cur) == -1)
372: err(1, "clock_gettime_tv");
373: timersub(&t_cur, &mainstats.t_first, &t_diff);
374: total_elapsed = t_diff.tv_sec * 1000 + t_diff.tv_usec / 1000;
1.1 djm 375:
1.62 procter 376: printf("%llu bytes %s over %.3Lf seconds\n",
377: mainstats.total_bytes, direction, total_elapsed/1000.0L);
378: printf("bandwidth min/avg/max/std-dev = %.3Lf/%.3Lf/%.3Lf/%.3Lf Mbps\n",
379: mainstats.floor_mbps, mainstats.mean_mbps, mainstats.peak_mbps,
380: std_dev);
1.1 djm 381: }
382:
383: static void
1.20 claudio 384: tcp_stats_display(unsigned long long total_elapsed, long double mbps,
1.67 claudio 385: float bwperc, struct statctx *sc, struct tcp_info *tcpi)
1.11 claudio 386: {
387: int j;
1.58 bluhm 388:
1.11 claudio 389: printf("%12llu %14llu %12.3Lf %7.2f%% ", total_elapsed, sc->bytes,
390: mbps, bwperc);
1.58 bluhm 391:
1.20 claudio 392: if (ptb->kvars != NULL) {
393: for (j = 0; ptb->kvars[j] != NULL; j++) {
1.11 claudio 394: #define S(a) #a
395: #define P(b, v, f) \
1.67 claudio 396: if (strcmp(ptb->kvars[j], S(v)) == 0) { \
397: printf("%s"f, j > 0 ? "," : "", b->tcpi_##v); \
1.11 claudio 398: continue; \
399: }
1.67 claudio 400: P(tcpi, last_ack_recv, "%u")
401: P(tcpi, last_ack_sent, "%u")
402: P(tcpi, last_data_recv, "%u")
403: P(tcpi, last_data_sent, "%u")
404: P(tcpi, max_sndwnd, "%u")
405: P(tcpi, options, "%hhu")
406: P(tcpi, rcv_adv, "%u")
407: P(tcpi, rcv_mss, "%u")
408: P(tcpi, rcv_nxt, "%u")
409: P(tcpi, rcv_ooopack, "%u")
410: P(tcpi, rcv_space, "%u")
411: P(tcpi, rcv_up, "%u")
412: P(tcpi, rcv_wscale, "%hhu")
413: P(tcpi, rfbuf_cnt, "%u")
414: P(tcpi, rfbuf_ts, "%u")
415: P(tcpi, rtt, "%u")
416: P(tcpi, rttmin, "%u")
417: P(tcpi, rttvar, "%u")
418: P(tcpi, snd_cwnd, "%u")
419: P(tcpi, snd_max, "%u")
420: P(tcpi, snd_mss, "%u")
421: P(tcpi, snd_nxt, "%u")
422: P(tcpi, snd_rexmitpack, "%u")
423: P(tcpi, snd_ssthresh, "%u")
424: P(tcpi, snd_una, "%u")
425: P(tcpi, snd_wl1, "%u")
426: P(tcpi, snd_wl2, "%u")
427: P(tcpi, snd_wnd, "%u")
428: P(tcpi, snd_wscale, "%hhu")
429: P(tcpi, snd_zerowin, "%u")
430: P(tcpi, so_rcv_sb_cc, "%u")
431: P(tcpi, so_rcv_sb_hiwat, "%u")
432: P(tcpi, so_rcv_sb_lowat, "%u")
433: P(tcpi, so_rcv_sb_wat, "%u")
434: P(tcpi, so_snd_sb_cc, "%u")
435: P(tcpi, so_snd_sb_hiwat, "%u")
436: P(tcpi, so_snd_sb_lowat, "%u")
437: P(tcpi, so_snd_sb_wat, "%u")
438: P(tcpi, ts_recent, "%u")
439: P(tcpi, ts_recent_age, "%u")
1.58 bluhm 440: #undef S
1.1 djm 441: #undef P
442: }
443: }
444: printf("\n");
445: }
446:
447: static void
1.20 claudio 448: tcp_process_slice(int fd, short event, void *bula)
1.1 djm 449: {
1.11 claudio 450: unsigned long long total_elapsed, since_last;
1.62 procter 451: long double mbps, old_mean_mbps, slice_mbps = 0;
1.11 claudio 452: float bwperc;
1.20 claudio 453: struct statctx *sc;
1.11 claudio 454: struct timeval t_cur, t_diff;
1.67 claudio 455: struct tcp_info tcpi;
456: socklen_t tcpilen;
1.58 bluhm 457:
1.62 procter 458: if (TAILQ_EMPTY(&sc_queue))
459: return; /* don't pollute stats */
460:
461: mainstats.n_slices++;
462:
1.20 claudio 463: TAILQ_FOREACH(sc, &sc_queue, entry) {
464: if (clock_gettime_tv(CLOCK_MONOTONIC, &t_cur) == -1)
465: err(1, "clock_gettime_tv");
1.67 claudio 466: if (ptb->kvars != NULL) { /* process kernel stats */
467: tcpilen = sizeof(tcpi);
468: if (getsockopt(sc->fd, IPPROTO_TCP, TCP_INFO,
469: &tcpi, &tcpilen) == -1)
470: err(1, "get tcp_info");
471: }
1.58 bluhm 472:
1.11 claudio 473: timersub(&t_cur, &sc->t_start, &t_diff);
474: total_elapsed = t_diff.tv_sec * 1000 + t_diff.tv_usec / 1000;
475: timersub(&t_cur, &sc->t_last, &t_diff);
476: since_last = t_diff.tv_sec * 1000 + t_diff.tv_usec / 1000;
1.60 stsp 477: if (since_last == 0)
478: continue;
1.11 claudio 479: bwperc = (sc->bytes * 100.0) / mainstats.slice_bytes;
480: mbps = (sc->bytes * 8) / (since_last * 1000.0);
481: slice_mbps += mbps;
1.58 bluhm 482:
1.67 claudio 483: tcp_stats_display(total_elapsed, mbps, bwperc, sc, &tcpi);
1.58 bluhm 484:
1.11 claudio 485: sc->t_last = t_cur;
486: sc->bytes = 0;
487: }
1.1 djm 488:
1.11 claudio 489: /* process stats for this slice */
490: if (slice_mbps > mainstats.peak_mbps)
491: mainstats.peak_mbps = slice_mbps;
1.62 procter 492: if (slice_mbps < mainstats.floor_mbps)
493: mainstats.floor_mbps = slice_mbps;
494: old_mean_mbps = mainstats.mean_mbps;
495: mainstats.mean_mbps += (slice_mbps - mainstats.mean_mbps) /
496: mainstats.n_slices;
497:
498: /* "Welford's method" for online variance
499: * see Knuth, TAoCP Volume 2, 3rd edn., p232 */
500: mainstats.nvariance_mbps += (slice_mbps - old_mean_mbps) *
501: (slice_mbps - mainstats.mean_mbps);
502:
1.20 claudio 503: printf("Conn: %3d Mbps: %12.3Lf Peak Mbps: %12.3Lf Avg Mbps: %12.3Lf\n",
504: mainstats.nconns, slice_mbps, mainstats.peak_mbps,
1.58 bluhm 505: mainstats.nconns ? slice_mbps / mainstats.nconns : 0);
1.62 procter 506:
1.20 claudio 507: mainstats.slice_bytes = 0;
508: set_slice_timer(mainstats.nconns > 0);
509: }
510:
511: static void
1.62 procter 512: udp_process_slice(int fd, short event, void *bula)
1.20 claudio 513: {
1.31 haesbaer 514: unsigned long long total_elapsed, since_last, pps;
1.62 procter 515: long double old_mean_mbps, slice_mbps;
1.20 claudio 516: struct timeval t_cur, t_diff;
517:
1.62 procter 518: mainstats.n_slices++;
519:
1.20 claudio 520: if (clock_gettime_tv(CLOCK_MONOTONIC, &t_cur) == -1)
521: err(1, "clock_gettime_tv");
1.62 procter 522:
523: timersub(&t_cur, &udp_sc->t_start, &t_diff);
1.20 claudio 524: total_elapsed = t_diff.tv_sec * 1000 + t_diff.tv_usec / 1000;
1.62 procter 525:
526: timersub(&t_cur, &udp_sc->t_last, &t_diff);
1.20 claudio 527: since_last = t_diff.tv_sec * 1000 + t_diff.tv_usec / 1000;
1.60 stsp 528: if (since_last == 0)
529: return;
1.62 procter 530:
531: slice_mbps = (udp_sc->bytes * 8) / (since_last * 1000.0);
532: pps = (udp_sc->udp_slice_pkts * 1000) / since_last;
533:
1.20 claudio 534: if (slice_mbps > mainstats.peak_mbps)
535: mainstats.peak_mbps = slice_mbps;
1.62 procter 536: if (slice_mbps < mainstats.floor_mbps)
537: mainstats.floor_mbps = slice_mbps;
538: old_mean_mbps = mainstats.mean_mbps;
539: mainstats.mean_mbps += (slice_mbps - mainstats.mean_mbps) /
540: mainstats.n_slices;
541:
542: /* "Welford's method" for online variance
543: * see Knuth, TAoCP Volume 2, 3rd edn., p232 */
544: mainstats.nvariance_mbps += (slice_mbps - old_mean_mbps) *
545: (slice_mbps - mainstats.mean_mbps);
546:
1.31 haesbaer 547: printf("Elapsed: %11llu Mbps: %11.3Lf Peak Mbps: %11.3Lf %s PPS: %7llu\n",
1.20 claudio 548: total_elapsed, slice_mbps, mainstats.peak_mbps,
549: ptb->sflag ? "Rx" : "Tx", pps);
550:
551: /* Clean up this slice time */
1.62 procter 552: udp_sc->t_last = t_cur;
553: udp_sc->bytes = 0;
554: udp_sc->udp_slice_pkts = 0;
555:
556: mainstats.slice_bytes = 0;
1.20 claudio 557: set_slice_timer(1);
1.11 claudio 558: }
1.1 djm 559:
1.20 claudio 560: static void
1.62 procter 561: udp_server_handle_sc(int fd, short event, void *bula)
1.11 claudio 562: {
1.62 procter 563: static int first_read = 1;
1.11 claudio 564: ssize_t n;
1.1 djm 565:
1.20 claudio 566: n = read(fd, ptb->dummybuf, ptb->dummybuf_len);
567: if (n == 0)
568: return;
569: else if (n == -1) {
1.34 haesbaer 570: if (errno != EINTR && errno != EWOULDBLOCK)
571: warn("fd %d read error", fd);
1.20 claudio 572: return;
573: }
1.58 bluhm 574:
1.20 claudio 575: if (ptb->vflag >= 3)
576: fprintf(stderr, "read: %zd bytes\n", n);
1.62 procter 577: if (first_read) {
578: first_read = 0;
579: stats_prepare(udp_sc);
1.20 claudio 580: set_slice_timer(1);
1.62 procter 581: }
1.20 claudio 582: /* Account packet */
1.62 procter 583: udp_sc->udp_slice_pkts++;
584: udp_sc->bytes += n;
585: mainstats.slice_bytes += n;
586: mainstats.total_bytes += n;
1.20 claudio 587: }
588:
589: static void
590: tcp_server_handle_sc(int fd, short event, void *v_sc)
591: {
592: struct statctx *sc = v_sc;
593: ssize_t n;
594:
595: n = read(sc->fd, sc->buf, sc->buflen);
596: if (n == -1) {
1.34 haesbaer 597: if (errno != EINTR && errno != EWOULDBLOCK)
598: warn("fd %d read error", sc->fd);
1.20 claudio 599: return;
600: } else if (n == 0) {
601: if (ptb->vflag)
602: fprintf(stderr, "%8d closed by remote end\n", sc->fd);
1.33 haesbaer 603:
604: TAILQ_REMOVE(&sc_queue, sc, entry);
605:
1.23 sthen 606: event_del(&sc->ev);
1.20 claudio 607: close(sc->fd);
1.33 haesbaer 608:
609: /* Some file descriptors are available again. */
610: if (evtimer_pending(&sc->tcp_ts->evt, NULL)) {
611: evtimer_del(&sc->tcp_ts->evt);
612: event_add(&sc->tcp_ts->ev, NULL);
613: }
614:
1.20 claudio 615: free(sc);
616: mainstats.nconns--;
617: return;
1.1 djm 618: }
1.20 claudio 619: if (ptb->vflag >= 3)
1.11 claudio 620: fprintf(stderr, "read: %zd bytes\n", n);
1.20 claudio 621: sc->bytes += n;
622: mainstats.slice_bytes += n;
1.62 procter 623: mainstats.total_bytes += n;
1.20 claudio 624: }
1.58 bluhm 625:
1.20 claudio 626: static void
1.33 haesbaer 627: tcp_server_accept(int fd, short event, void *arg)
1.20 claudio 628: {
1.33 haesbaer 629: struct tcpservsock *ts = arg;
1.49 chl 630: int sock;
1.20 claudio 631: struct statctx *sc;
632: struct sockaddr_storage ss;
633: socklen_t sslen;
1.66 bluhm 634: char tmp[NI_MAXHOST + 2 + NI_MAXSERV];
1.58 bluhm 635:
1.20 claudio 636: sslen = sizeof(ss);
1.33 haesbaer 637:
638: event_add(&ts->ev, NULL);
639: if (event & EV_TIMEOUT)
640: return;
1.48 guenther 641: if ((sock = accept4(fd, (struct sockaddr *)&ss, &sslen, SOCK_NONBLOCK))
642: == -1) {
1.33 haesbaer 643: /*
644: * Pause accept if we are out of file descriptors, or
645: * libevent will haunt us here too.
646: */
647: if (errno == ENFILE || errno == EMFILE) {
648: struct timeval evtpause = { 1, 0 };
649:
650: event_del(&ts->ev);
651: evtimer_add(&ts->evt, &evtpause);
1.38 deraadt 652: } else if (errno != EWOULDBLOCK && errno != EINTR &&
653: errno != ECONNABORTED)
1.33 haesbaer 654: warn("accept");
1.20 claudio 655: return;
656: }
657: saddr_ntop((struct sockaddr *)&ss, sslen,
658: tmp, sizeof(tmp));
1.24 haesbaer 659: if (ptb->Tflag != -1 && ss.ss_family == AF_INET) {
660: if (setsockopt(sock, IPPROTO_IP, IP_TOS,
661: &ptb->Tflag, sizeof(ptb->Tflag)))
662: err(1, "setsockopt IP_TOS");
663: }
664: if (ptb->Tflag != -1 && ss.ss_family == AF_INET6) {
665: if (setsockopt(sock, IPPROTO_IPV6, IPV6_TCLASS,
666: &ptb->Tflag, sizeof(ptb->Tflag)))
667: err(1, "setsockopt IPV6_TCLASS");
668: }
1.20 claudio 669: /* Alloc client structure and register reading callback */
670: if ((sc = calloc(1, sizeof(*sc))) == NULL)
671: err(1, "calloc");
1.33 haesbaer 672: sc->tcp_ts = ts;
1.20 claudio 673: sc->fd = sock;
674: stats_prepare(sc);
1.62 procter 675:
1.20 claudio 676: event_set(&sc->ev, sc->fd, EV_READ | EV_PERSIST,
677: tcp_server_handle_sc, sc);
678: event_add(&sc->ev, NULL);
679: TAILQ_INSERT_TAIL(&sc_queue, sc, entry);
1.62 procter 680:
1.20 claudio 681: mainstats.nconns++;
1.36 haesbaer 682: if (mainstats.nconns == 1)
683: set_slice_timer(1);
1.20 claudio 684: if (ptb->vflag)
1.28 haesbaer 685: fprintf(stderr, "Accepted connection from %s, fd = %d\n",
686: tmp, sc->fd);
1.1 djm 687: }
688:
1.20 claudio 689: static void
1.62 procter 690: server_init(struct addrinfo *aitop)
1.1 djm 691: {
1.11 claudio 692: int sock, on = 1;
1.1 djm 693: struct addrinfo *ai;
1.20 claudio 694: struct event *ev;
1.33 haesbaer 695: struct tcpservsock *ts;
1.11 claudio 696: nfds_t lnfds;
1.1 djm 697:
1.11 claudio 698: lnfds = 0;
1.1 djm 699: for (ai = aitop; ai != NULL; ai = ai->ai_next) {
1.66 bluhm 700: char tmp[NI_MAXHOST + 2 + NI_MAXSERV];
701:
1.1 djm 702: saddr_ntop(ai->ai_addr, ai->ai_addrlen, tmp, sizeof(tmp));
1.20 claudio 703: if (ptb->vflag)
704: fprintf(stderr, "Try to bind to %s\n", tmp);
1.1 djm 705: if ((sock = socket(ai->ai_family, ai->ai_socktype,
706: ai->ai_protocol)) == -1) {
707: if (ai->ai_next == NULL)
708: err(1, "socket");
1.20 claudio 709: if (ptb->vflag)
1.1 djm 710: warn("socket");
711: continue;
712: }
1.64 bluhm 713: if (ptb->Dflag) {
714: if (setsockopt(sock, SOL_SOCKET, SO_DEBUG,
715: &ptb->Dflag, sizeof(ptb->Dflag)))
716: err(1, "setsockopt SO_DEBUG");
717: }
1.24 haesbaer 718: if (ptb->Tflag != -1 && ai->ai_family == AF_INET) {
719: if (setsockopt(sock, IPPROTO_IP, IP_TOS,
720: &ptb->Tflag, sizeof(ptb->Tflag)))
721: err(1, "setsockopt IP_TOS");
722: }
723: if (ptb->Tflag != -1 && ai->ai_family == AF_INET6) {
724: if (setsockopt(sock, IPPROTO_IPV6, IPV6_TCLASS,
725: &ptb->Tflag, sizeof(ptb->Tflag)))
726: err(1, "setsockopt IPV6_TCLASS");
727: }
1.1 djm 728: if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
729: &on, sizeof(on)) == -1)
730: warn("reuse port");
731: if (bind(sock, ai->ai_addr, ai->ai_addrlen) != 0) {
732: if (ai->ai_next == NULL)
733: err(1, "bind");
1.20 claudio 734: if (ptb->vflag)
1.1 djm 735: warn("bind");
736: close(sock);
737: continue;
738: }
1.20 claudio 739: if (ptb->Sflag) {
1.1 djm 740: if (setsockopt(sock, SOL_SOCKET, SO_RCVBUF,
1.20 claudio 741: &ptb->Sflag, sizeof(ptb->Sflag)) == -1)
1.54 bluhm 742: warn("set receive socket buffer size");
1.1 djm 743: }
1.20 claudio 744: if (TCP_MODE) {
745: if (listen(sock, 64) == -1) {
746: if (ai->ai_next == NULL)
747: err(1, "listen");
748: if (ptb->vflag)
749: warn("listen");
750: close(sock);
751: continue;
752: }
1.1 djm 753: }
1.33 haesbaer 754: if (UDP_MODE) {
755: if ((ev = calloc(1, sizeof(*ev))) == NULL)
756: err(1, "calloc");
1.20 claudio 757: event_set(ev, sock, EV_READ | EV_PERSIST,
1.62 procter 758: udp_server_handle_sc, NULL);
1.33 haesbaer 759: event_add(ev, NULL);
760: } else {
761: if ((ts = calloc(1, sizeof(*ts))) == NULL)
762: err(1, "calloc");
763:
764: ts->fd = sock;
765: evtimer_set(&ts->evt, tcp_server_accept, ts);
766: event_set(&ts->ev, ts->fd, EV_READ,
767: tcp_server_accept, ts);
768: event_add(&ts->ev, NULL);
769: }
1.20 claudio 770: if (ptb->vflag >= 3)
771: fprintf(stderr, "bound to fd %d\n", sock);
1.11 claudio 772: lnfds++;
1.1 djm 773: }
1.51 claudio 774: if (!ptb->Uflag)
775: freeaddrinfo(aitop);
1.11 claudio 776: if (lnfds == 0)
1.1 djm 777: errx(1, "No working listen addresses found");
1.58 bluhm 778: }
1.11 claudio 779:
780: static void
1.20 claudio 781: client_handle_sc(int fd, short event, void *v_sc)
782: {
783: struct statctx *sc = v_sc;
784: ssize_t n;
1.51 claudio 785: size_t blen = sc->buflen;
1.1 djm 786:
1.51 claudio 787: if (ptb->Rflag)
788: blen = arc4random_uniform(blen) + 1;
789: if ((n = write(sc->fd, sc->buf, blen)) == -1) {
1.34 haesbaer 790: if (errno == EINTR || errno == EWOULDBLOCK ||
1.20 claudio 791: (UDP_MODE && errno == ENOBUFS))
1.34 haesbaer 792: return;
1.62 procter 793: warn("write");
794: wrapup(1);
1.11 claudio 795: }
1.58 bluhm 796: if (TCP_MODE && n == 0) {
1.28 haesbaer 797: fprintf(stderr, "Remote end closed connection");
1.62 procter 798: wrapup(1);
1.1 djm 799: }
1.20 claudio 800: if (ptb->vflag >= 3)
1.28 haesbaer 801: fprintf(stderr, "write: %zd bytes\n", n);
1.20 claudio 802: sc->bytes += n;
803: mainstats.slice_bytes += n;
1.62 procter 804: mainstats.total_bytes += n;
1.20 claudio 805: if (UDP_MODE)
806: sc->udp_slice_pkts++;
1.1 djm 807: }
808:
1.20 claudio 809: static void
1.62 procter 810: client_init(struct addrinfo *aitop, int nconn, struct addrinfo *aib)
1.1 djm 811: {
1.20 claudio 812: struct statctx *sc;
813: struct addrinfo *ai;
1.14 claudio 814: int i, r, sock;
1.1 djm 815:
1.4 henning 816: for (i = 0; i < nconn; i++) {
817: for (sock = -1, ai = aitop; ai != NULL; ai = ai->ai_next) {
1.66 bluhm 818: char tmp[NI_MAXHOST + 2 + NI_MAXSERV];
819:
1.4 henning 820: saddr_ntop(ai->ai_addr, ai->ai_addrlen, tmp,
821: sizeof(tmp));
1.20 claudio 822: if (ptb->vflag && i == 0)
1.4 henning 823: fprintf(stderr, "Trying %s\n", tmp);
824: if ((sock = socket(ai->ai_family, ai->ai_socktype,
825: ai->ai_protocol)) == -1) {
826: if (ai->ai_next == NULL)
827: err(1, "socket");
1.20 claudio 828: if (ptb->vflag)
1.4 henning 829: warn("socket");
830: continue;
831: }
1.64 bluhm 832: if (ptb->Dflag) {
833: if (setsockopt(sock, SOL_SOCKET, SO_DEBUG,
834: &ptb->Dflag, sizeof(ptb->Dflag)))
835: err(1, "setsockopt SO_DEBUG");
836: }
1.25 haesbaer 837: if (aib != NULL) {
838: saddr_ntop(aib->ai_addr, aib->ai_addrlen,
839: tmp, sizeof(tmp));
840: if (ptb->vflag)
841: fprintf(stderr,
842: "Try to bind to %s\n", tmp);
843: if (bind(sock, (struct sockaddr *)aib->ai_addr,
844: aib->ai_addrlen) == -1)
845: err(1, "bind");
846: }
1.24 haesbaer 847: if (ptb->Tflag != -1 && ai->ai_family == AF_INET) {
848: if (setsockopt(sock, IPPROTO_IP, IP_TOS,
849: &ptb->Tflag, sizeof(ptb->Tflag)))
850: err(1, "setsockopt IP_TOS");
851: }
852: if (ptb->Tflag != -1 && ai->ai_family == AF_INET6) {
853: if (setsockopt(sock, IPPROTO_IPV6, IPV6_TCLASS,
854: &ptb->Tflag, sizeof(ptb->Tflag)))
855: err(1, "setsockopt IPV6_TCLASS");
856: }
1.20 claudio 857: if (ptb->Sflag) {
1.4 henning 858: if (setsockopt(sock, SOL_SOCKET, SO_SNDBUF,
1.20 claudio 859: &ptb->Sflag, sizeof(ptb->Sflag)) == -1)
1.54 bluhm 860: warn("set send socket buffer size");
1.4 henning 861: }
862: if (connect(sock, ai->ai_addr, ai->ai_addrlen) != 0) {
863: if (ai->ai_next == NULL)
864: err(1, "connect");
1.20 claudio 865: if (ptb->vflag)
1.4 henning 866: warn("connect");
867: close(sock);
868: sock = -1;
869: continue;
870: }
871: break;
1.1 djm 872: }
1.4 henning 873: if (sock == -1)
874: errx(1, "No host found");
1.50 krw 875: if ((r = fcntl(sock, F_GETFL)) == -1)
1.4 henning 876: err(1, "fcntl(F_GETFL)");
877: r |= O_NONBLOCK;
878: if (fcntl(sock, F_SETFL, r) == -1)
879: err(1, "fcntl(F_SETFL, O_NONBLOCK)");
1.20 claudio 880: /* Alloc and prepare stats */
881: if (TCP_MODE) {
882: if ((sc = calloc(1, sizeof(*sc))) == NULL)
883: err(1, "calloc");
1.62 procter 884: } else
885: sc = udp_sc;
886:
1.20 claudio 887: sc->fd = sock;
888: stats_prepare(sc);
1.62 procter 889:
1.20 claudio 890: event_set(&sc->ev, sc->fd, EV_WRITE | EV_PERSIST,
891: client_handle_sc, sc);
892: event_add(&sc->ev, NULL);
893: TAILQ_INSERT_TAIL(&sc_queue, sc, entry);
1.62 procter 894:
1.20 claudio 895: mainstats.nconns++;
1.36 haesbaer 896: if (mainstats.nconns == 1)
897: set_slice_timer(1);
1.14 claudio 898: }
1.51 claudio 899: if (!ptb->Uflag)
900: freeaddrinfo(aitop);
1.35 haesbaer 901: if (aib != NULL)
902: freeaddrinfo(aib);
1.14 claudio 903:
1.20 claudio 904: if (ptb->vflag && nconn > 1)
1.29 haesbaer 905: fprintf(stderr, "%d connections established\n",
906: mainstats.nconns);
1.14 claudio 907: }
908:
1.24 haesbaer 909: static int
910: map_tos(char *s, int *val)
911: {
912: /* DiffServ Codepoints and other TOS mappings */
913: const struct toskeywords {
914: const char *keyword;
915: int val;
916: } *t, toskeywords[] = {
917: { "af11", IPTOS_DSCP_AF11 },
918: { "af12", IPTOS_DSCP_AF12 },
919: { "af13", IPTOS_DSCP_AF13 },
920: { "af21", IPTOS_DSCP_AF21 },
921: { "af22", IPTOS_DSCP_AF22 },
922: { "af23", IPTOS_DSCP_AF23 },
923: { "af31", IPTOS_DSCP_AF31 },
924: { "af32", IPTOS_DSCP_AF32 },
925: { "af33", IPTOS_DSCP_AF33 },
926: { "af41", IPTOS_DSCP_AF41 },
927: { "af42", IPTOS_DSCP_AF42 },
928: { "af43", IPTOS_DSCP_AF43 },
929: { "critical", IPTOS_PREC_CRITIC_ECP },
930: { "cs0", IPTOS_DSCP_CS0 },
931: { "cs1", IPTOS_DSCP_CS1 },
932: { "cs2", IPTOS_DSCP_CS2 },
933: { "cs3", IPTOS_DSCP_CS3 },
934: { "cs4", IPTOS_DSCP_CS4 },
935: { "cs5", IPTOS_DSCP_CS5 },
936: { "cs6", IPTOS_DSCP_CS6 },
937: { "cs7", IPTOS_DSCP_CS7 },
938: { "ef", IPTOS_DSCP_EF },
939: { "inetcontrol", IPTOS_PREC_INTERNETCONTROL },
940: { "lowdelay", IPTOS_LOWDELAY },
941: { "netcontrol", IPTOS_PREC_NETCONTROL },
942: { "reliability", IPTOS_RELIABILITY },
943: { "throughput", IPTOS_THROUGHPUT },
1.58 bluhm 944: { NULL, -1 },
1.24 haesbaer 945: };
1.58 bluhm 946:
1.24 haesbaer 947: for (t = toskeywords; t->keyword != NULL; t++) {
948: if (strcmp(s, t->keyword) == 0) {
949: *val = t->val;
950: return (1);
951: }
952: }
1.58 bluhm 953:
1.24 haesbaer 954: return (0);
955: }
956:
1.30 henning 957: static void
958: quit(int sig, short event, void *arg)
959: {
1.62 procter 960: wrapup(0);
961: }
962:
963: static void
964: wrapup(int err)
965: {
966: const int transfers = timerisset(&mainstats.t_first);
967: const int stats = (mainstats.floor_mbps != INFINITY);
968:
969: if (transfers) {
970: if (!stats) {
971: if (UDP_MODE)
972: udp_process_slice(0, 0, NULL);
973: else
974: tcp_process_slice(0, 0, NULL);
975: }
976:
977: summary_display();
978: }
979:
1.63 sthen 980: if (err != -1)
981: exit(err);
1.30 henning 982: }
983:
1.1 djm 984: int
985: main(int argc, char **argv)
986: {
1.30 henning 987: struct timeval tv;
1.37 haesbaer 988: unsigned int secs, rtable;
1.69 tobhe 989: char *tmp;
1.25 haesbaer 990: struct addrinfo *aitop, *aib, hints;
1.1 djm 991: const char *errstr;
1.11 claudio 992: struct rlimit rl;
1.20 claudio 993: int ch, herr, nconn;
1.42 dlg 994: int family = PF_UNSPEC;
1.25 haesbaer 995: const char *host = NULL, *port = DEFAULT_PORT, *srcbind = NULL;
1.63 sthen 996: struct event ev_sigint, ev_sigterm, ev_sighup, ev_siginfo, ev_progtimer;
1.51 claudio 997: struct sockaddr_un sock_un;
1.1 djm 998:
1.20 claudio 999: /* Init world */
1.45 millert 1000: setvbuf(stdout, NULL, _IOLBF, 0);
1.20 claudio 1001: ptb = &tcpbench;
1002: ptb->dummybuf_len = 0;
1.64 bluhm 1003: ptb->Dflag = 0;
1.51 claudio 1004: ptb->Sflag = ptb->sflag = ptb->vflag = ptb->Rflag = ptb->Uflag = 0;
1.20 claudio 1005: ptb->kvars = NULL;
1006: ptb->rflag = DEFAULT_STATS_INTERVAL;
1.24 haesbaer 1007: ptb->Tflag = -1;
1.20 claudio 1008: nconn = 1;
1.25 haesbaer 1009: aib = NULL;
1.30 henning 1010: secs = 0;
1.1 djm 1011:
1.64 bluhm 1012: while ((ch = getopt(argc, argv, "46b:B:Dhlk:n:p:Rr:sS:t:T:uUvV:"))
1013: != -1) {
1.1 djm 1014: switch (ch) {
1.42 dlg 1015: case '4':
1016: family = PF_INET;
1017: break;
1018: case '6':
1019: family = PF_INET6;
1020: break;
1.25 haesbaer 1021: case 'b':
1022: srcbind = optarg;
1.64 bluhm 1023: break;
1024: case 'D':
1025: ptb->Dflag = 1;
1.25 haesbaer 1026: break;
1.1 djm 1027: case 'l':
1028: list_kvars();
1029: exit(0);
1030: case 'k':
1031: if ((tmp = strdup(optarg)) == NULL)
1.53 benno 1032: err(1, "strdup");
1.20 claudio 1033: ptb->kvars = check_prepare_kvars(tmp);
1.1 djm 1034: free(tmp);
1035: break;
1.51 claudio 1036: case 'R':
1037: ptb->Rflag = 1;
1038: break;
1.1 djm 1039: case 'r':
1.20 claudio 1040: ptb->rflag = strtonum(optarg, 0, 60 * 60 * 24 * 1000,
1.1 djm 1041: &errstr);
1042: if (errstr != NULL)
1043: errx(1, "statistics interval is %s: %s",
1044: errstr, optarg);
1045: break;
1046: case 'p':
1047: port = optarg;
1048: break;
1049: case 's':
1.20 claudio 1050: ptb->sflag = 1;
1.1 djm 1051: break;
1052: case 'S':
1.20 claudio 1053: ptb->Sflag = strtonum(optarg, 0, 1024*1024*1024,
1.1 djm 1054: &errstr);
1055: if (errstr != NULL)
1.54 bluhm 1056: errx(1, "socket buffer size is %s: %s",
1.1 djm 1057: errstr, optarg);
1058: break;
1059: case 'B':
1.20 claudio 1060: ptb->dummybuf_len = strtonum(optarg, 0, 1024*1024*1024,
1.1 djm 1061: &errstr);
1062: if (errstr != NULL)
1063: errx(1, "read/write buffer size is %s: %s",
1064: errstr, optarg);
1065: break;
1066: case 'v':
1.20 claudio 1067: ptb->vflag++;
1.9 claudio 1068: break;
1069: case 'V':
1.37 haesbaer 1070: rtable = (unsigned int)strtonum(optarg, 0,
1.9 claudio 1071: RT_TABLEID_MAX, &errstr);
1072: if (errstr)
1.17 guenther 1073: errx(1, "rtable value is %s: %s",
1.9 claudio 1074: errstr, optarg);
1.37 haesbaer 1075: if (setrtable(rtable) == -1)
1076: err(1, "setrtable");
1.1 djm 1077: break;
1.4 henning 1078: case 'n':
1079: nconn = strtonum(optarg, 0, 65535, &errstr);
1080: if (errstr != NULL)
1081: errx(1, "number of connections is %s: %s",
1082: errstr, optarg);
1083: break;
1.20 claudio 1084: case 'u':
1085: ptb->uflag = 1;
1.24 haesbaer 1086: break;
1.51 claudio 1087: case 'U':
1088: ptb->Uflag = 1;
1089: break;
1.24 haesbaer 1090: case 'T':
1091: if (map_tos(optarg, &ptb->Tflag))
1092: break;
1093: errstr = NULL;
1094: if (strlen(optarg) > 1 && optarg[0] == '0' &&
1095: optarg[1] == 'x')
1096: ptb->Tflag = (int)strtol(optarg, NULL, 16);
1097: else
1098: ptb->Tflag = (int)strtonum(optarg, 0, 255,
1099: &errstr);
1100: if (ptb->Tflag == -1 || ptb->Tflag > 255 || errstr)
1101: errx(1, "illegal tos value %s", optarg);
1.20 claudio 1102: break;
1.30 henning 1103: case 't':
1104: secs = strtonum(optarg, 1, UINT_MAX, &errstr);
1105: if (errstr != NULL)
1106: errx(1, "secs is %s: %s",
1107: errstr, optarg);
1108: break;
1.1 djm 1109: case 'h':
1110: default:
1111: usage();
1112: }
1113: }
1114:
1.67 claudio 1115: if (pledge("stdio unveil rpath dns inet unix id", NULL) == -1)
1.47 benno 1116: err(1, "pledge");
1117:
1.1 djm 1118: argv += optind;
1119: argc -= optind;
1.51 claudio 1120: if ((argc != (ptb->sflag && !ptb->Uflag ? 0 : 1)) ||
1.20 claudio 1121: (UDP_MODE && (ptb->kvars || nconn != 1)))
1.1 djm 1122: usage();
1.4 henning 1123:
1.57 deraadt 1124: if (!ptb->sflag || ptb->Uflag)
1.62 procter 1125: mainstats.host = host = argv[0];
1.57 deraadt 1126:
1127: if (ptb->Uflag)
1128: if (unveil(host, "rwc") == -1)
1.65 beck 1129: err(1, "unveil %s", host);
1.57 deraadt 1130:
1.51 claudio 1131: if (pledge("stdio id dns inet unix", NULL) == -1)
1.47 benno 1132: err(1, "pledge");
1133:
1.20 claudio 1134: /*
1135: * Rationale,
1136: * If TCP, use a big buffer with big reads/writes.
1137: * If UDP, use a big buffer in server and a buffer the size of a
1138: * ethernet packet.
1139: */
1140: if (!ptb->dummybuf_len) {
1.58 bluhm 1141: if (ptb->sflag || TCP_MODE)
1.20 claudio 1142: ptb->dummybuf_len = DEFAULT_BUF;
1143: else
1144: ptb->dummybuf_len = DEFAULT_UDP_PKT;
1145: }
1.1 djm 1146:
1.13 claudio 1147: bzero(&hints, sizeof(hints));
1.42 dlg 1148: hints.ai_family = family;
1.25 haesbaer 1149: if (UDP_MODE) {
1.20 claudio 1150: hints.ai_socktype = SOCK_DGRAM;
1.25 haesbaer 1151: hints.ai_protocol = IPPROTO_UDP;
1.27 haesbaer 1152: } else {
1.20 claudio 1153: hints.ai_socktype = SOCK_STREAM;
1.25 haesbaer 1154: hints.ai_protocol = IPPROTO_TCP;
1155: }
1.51 claudio 1156: if (ptb->Uflag) {
1157: hints.ai_family = AF_UNIX;
1158: hints.ai_protocol = 0;
1159: sock_un.sun_family = AF_UNIX;
1160: if (strlcpy(sock_un.sun_path, host, sizeof(sock_un.sun_path)) >=
1161: sizeof(sock_un.sun_path))
1162: errx(1, "socket name '%s' too long", host);
1163: hints.ai_addr = (struct sockaddr *)&sock_un;
1164: hints.ai_addrlen = sizeof(sock_un);
1165: aitop = &hints;
1166: } else {
1167: if (ptb->sflag)
1168: hints.ai_flags = AI_PASSIVE;
1169: if (srcbind != NULL) {
1170: hints.ai_flags |= AI_NUMERICHOST;
1171: herr = getaddrinfo(srcbind, NULL, &hints, &aib);
1172: hints.ai_flags &= ~AI_NUMERICHOST;
1173: if (herr != 0) {
1174: if (herr == EAI_SYSTEM)
1175: err(1, "getaddrinfo");
1176: else
1177: errx(1, "getaddrinfo: %s",
1178: gai_strerror(herr));
1179: }
1180: }
1181: if ((herr = getaddrinfo(host, port, &hints, &aitop)) != 0) {
1.25 haesbaer 1182: if (herr == EAI_SYSTEM)
1183: err(1, "getaddrinfo");
1184: else
1185: errx(1, "getaddrinfo: %s", gai_strerror(herr));
1186: }
1187: }
1.1 djm 1188:
1.51 claudio 1189: if (pledge("stdio id inet unix", NULL) == -1)
1.47 benno 1190: err(1, "pledge");
1191:
1.11 claudio 1192: if (getrlimit(RLIMIT_NOFILE, &rl) == -1)
1193: err(1, "getrlimit");
1194: if (rl.rlim_cur < MAX_FD)
1195: rl.rlim_cur = MAX_FD;
1196: if (setrlimit(RLIMIT_NOFILE, &rl))
1197: err(1, "setrlimit");
1198: if (getrlimit(RLIMIT_NOFILE, &rl) == -1)
1199: err(1, "getrlimit");
1.47 benno 1200:
1.51 claudio 1201: if (pledge("stdio inet unix", NULL) == -1)
1.47 benno 1202: err(1, "pledge");
1203:
1.20 claudio 1204: /* Init world */
1205: TAILQ_INIT(&sc_queue);
1206: if ((ptb->dummybuf = malloc(ptb->dummybuf_len)) == NULL)
1207: err(1, "malloc");
1208: arc4random_buf(ptb->dummybuf, ptb->dummybuf_len);
1209:
1.62 procter 1210: timerclear(&mainstats.t_first);
1211: mainstats.floor_mbps = INFINITY;
1212:
1.20 claudio 1213: /* Setup libevent and signals */
1214: event_init();
1215: signal_set(&ev_sigterm, SIGTERM, signal_handler, NULL);
1216: signal_set(&ev_sighup, SIGHUP, signal_handler, NULL);
1217: signal_set(&ev_sigint, SIGINT, signal_handler, NULL);
1.63 sthen 1218: signal_set(&ev_siginfo, SIGINFO, signal_handler, NULL);
1.20 claudio 1219: signal_add(&ev_sigint, NULL);
1220: signal_add(&ev_sigterm, NULL);
1221: signal_add(&ev_sighup, NULL);
1.63 sthen 1222: signal_add(&ev_siginfo, NULL);
1.20 claudio 1223: signal(SIGPIPE, SIG_IGN);
1.58 bluhm 1224:
1.27 haesbaer 1225: if (UDP_MODE) {
1226: if ((udp_sc = calloc(1, sizeof(*udp_sc))) == NULL)
1227: err(1, "calloc");
1228: udp_sc->fd = -1;
1.62 procter 1229: evtimer_set(&mainstats.timer, udp_process_slice, NULL);
1.27 haesbaer 1230: } else {
1.20 claudio 1231: print_tcp_header();
1232: evtimer_set(&mainstats.timer, tcp_process_slice, NULL);
1.27 haesbaer 1233: }
1.20 claudio 1234:
1.27 haesbaer 1235: if (ptb->sflag)
1.62 procter 1236: server_init(aitop);
1.30 henning 1237: else {
1238: if (secs > 0) {
1239: timerclear(&tv);
1240: tv.tv_sec = secs + 1;
1241: evtimer_set(&ev_progtimer, quit, NULL);
1242: evtimer_add(&ev_progtimer, &tv);
1243: }
1.62 procter 1244: client_init(aitop, nconn, aib);
1.47 benno 1245:
1.67 claudio 1246: if (pledge("stdio inet", NULL) == -1)
1.47 benno 1247: err(1, "pledge");
1.30 henning 1248: }
1.47 benno 1249:
1.20 claudio 1250: /* libevent main loop*/
1251: event_dispatch();
1.1 djm 1252:
1.20 claudio 1253: return (0);
1.1 djm 1254: }
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