Annotation of src/usr.bin/tcpbench/tcpbench.c, Revision 1.67
1.67 ! claudio 1: /* $OpenBSD: tcpbench.c,v 1.66 2022/08/06 23:35:30 bluhm 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 */
135: unsigned long long total_bytes; /* bytes since t_first */
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: "rcv_wscale",
! 163: "rfbuf_cnt",
! 164: "rfbuf_ts",
! 165: "rtt",
! 166: "rttmin",
! 167: "rttvar",
! 168: "snd_cwnd",
! 169: "snd_max",
! 170: "snd_mss",
! 171: "snd_nxt",
! 172: "snd_rexmitpack",
! 173: "snd_ssthresh",
! 174: "snd_una",
! 175: "snd_wl1",
! 176: "snd_wl2",
! 177: "snd_wnd",
! 178: "snd_wnd",
! 179: "snd_wscale",
! 180: "snd_wscale",
! 181: "snd_zerowin",
! 182: "so_rcv_sb_cc",
! 183: "so_rcv_sb_hiwat",
! 184: "so_rcv_sb_lowat",
! 185: "so_rcv_sb_wat",
! 186: "so_snd_sb_cc",
! 187: "so_snd_sb_hiwat",
! 188: "so_snd_sb_lowat",
! 189: "so_snd_sb_wat",
! 190: "ts_recent",
! 191: "ts_recent_age",
1.1 djm 192: NULL
193: };
194:
1.20 claudio 195: TAILQ_HEAD(, statctx) sc_queue;
1.1 djm 196:
197: static void __dead
198: usage(void)
199: {
200: fprintf(stderr,
1.6 jmc 201: "usage: tcpbench -l\n"
1.64 bluhm 202: " tcpbench [-46DRUuv] [-B buf] [-b sourceaddr] [-k kvars] [-n connections]\n"
1.25 haesbaer 203: " [-p port] [-r interval] [-S space] [-T toskeyword]\n"
1.30 henning 204: " [-t secs] [-V rtable] hostname\n"
1.64 bluhm 205: " tcpbench -s [-46DUuv] [-B buf] [-k kvars] [-p port] [-r interval]\n"
1.51 claudio 206: " [-S space] [-T toskeyword] [-V rtable] [hostname]\n");
1.1 djm 207: exit(1);
208: }
209:
210: static void
1.20 claudio 211: signal_handler(int sig, short event, void *bula)
212: {
213: /*
214: * signal handler rules don't apply, libevent decouples for us
215: */
216: switch (sig) {
1.63 sthen 217: case SIGINFO:
218: printf("\n");
219: wrapup(-1);
220: break;
1.20 claudio 221: case SIGINT:
1.62 procter 222: printf("\n");
223: wrapup(0);
224: break; /* NOTREACHED */
1.20 claudio 225: case SIGTERM:
226: case SIGHUP:
227: warnx("Terminated by signal %d", sig);
1.62 procter 228: wrapup(0);
1.20 claudio 229: break; /* NOTREACHED */
230: default:
231: errx(1, "unexpected signal %d", sig);
232: break; /* NOTREACHED */
233: }
234: }
235:
236: static void
1.1 djm 237: saddr_ntop(const struct sockaddr *addr, socklen_t alen, char *buf, size_t len)
238: {
239: char hbuf[NI_MAXHOST], pbuf[NI_MAXSERV];
240: int herr;
241:
1.51 claudio 242: if (addr->sa_family == AF_UNIX) {
243: struct sockaddr_un *sun = (struct sockaddr_un *)addr;
244: snprintf(buf, len, "%s", sun->sun_path);
245: return;
246: }
1.3 djm 247: if ((herr = getnameinfo(addr, alen, hbuf, sizeof(hbuf),
248: pbuf, sizeof(pbuf), NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
1.1 djm 249: if (herr == EAI_SYSTEM)
250: err(1, "getnameinfo");
251: else
252: errx(1, "getnameinfo: %s", gai_strerror(herr));
253: }
254: snprintf(buf, len, "[%s]:%s", hbuf, pbuf);
255: }
256:
257: static void
1.20 claudio 258: set_slice_timer(int on)
1.11 claudio 259: {
1.20 claudio 260: struct timeval tv;
1.11 claudio 261:
1.20 claudio 262: if (ptb->rflag == 0)
1.11 claudio 263: return;
264:
1.20 claudio 265: if (on) {
266: if (evtimer_pending(&mainstats.timer, NULL))
267: return;
268: /* XXX Is there a better way to do this ? */
269: tv.tv_sec = ptb->rflag / 1000;
270: tv.tv_usec = (ptb->rflag % 1000) * 1000;
1.58 bluhm 271:
1.20 claudio 272: evtimer_add(&mainstats.timer, &tv);
273: } else if (evtimer_pending(&mainstats.timer, NULL))
274: evtimer_del(&mainstats.timer);
275: }
1.58 bluhm 276:
1.20 claudio 277: static int
278: clock_gettime_tv(clockid_t clock_id, struct timeval *tv)
279: {
280: struct timespec ts;
281:
282: if (clock_gettime(clock_id, &ts) == -1)
283: return (-1);
1.58 bluhm 284:
1.20 claudio 285: TIMESPEC_TO_TIMEVAL(tv, &ts);
1.58 bluhm 286:
1.20 claudio 287: return (0);
1.11 claudio 288: }
289:
290: static void
1.20 claudio 291: print_tcp_header(void)
1.11 claudio 292: {
293: char **kv;
1.59 bluhm 294:
295: if (ptb->rflag == 0)
296: return;
1.20 claudio 297:
1.11 claudio 298: printf("%12s %14s %12s %8s ", "elapsed_ms", "bytes", "mbps",
299: "bwidth");
1.58 bluhm 300: for (kv = ptb->kvars; ptb->kvars != NULL && *kv != NULL; kv++)
1.20 claudio 301: printf("%s%s", kv != ptb->kvars ? "," : "", *kv);
1.11 claudio 302: printf("\n");
303: }
304:
305: static void
1.1 djm 306: check_kvar(const char *var)
307: {
1.16 deraadt 308: u_int i;
1.1 djm 309:
310: for (i = 0; allowed_kvars[i] != NULL; i++)
311: if (strcmp(allowed_kvars[i], var) == 0)
312: return;
313: errx(1, "Unrecognised kvar: %s", var);
314: }
315:
316: static void
317: list_kvars(void)
318: {
1.16 deraadt 319: u_int i;
1.1 djm 320:
1.26 haesbaer 321: printf("Supported kernel variables:\n");
1.1 djm 322: for (i = 0; allowed_kvars[i] != NULL; i++)
1.26 haesbaer 323: printf("\t%s\n", allowed_kvars[i]);
1.1 djm 324: }
325:
326: static char **
327: check_prepare_kvars(char *list)
328: {
329: char *item, **ret = NULL;
1.16 deraadt 330: u_int n = 0;
1.1 djm 331:
332: while ((item = strsep(&list, ", \t\n")) != NULL) {
333: check_kvar(item);
1.43 lteo 334: if ((ret = reallocarray(ret, (++n + 1), sizeof(*ret))) == NULL)
1.55 benno 335: err(1, "reallocarray(kvars)");
1.1 djm 336: if ((ret[n - 1] = strdup(item)) == NULL)
1.55 benno 337: err(1, "strdup");
1.1 djm 338: ret[n] = NULL;
339: }
1.20 claudio 340: return (ret);
1.1 djm 341: }
342:
343: static void
1.20 claudio 344: stats_prepare(struct statctx *sc)
1.1 djm 345: {
1.20 claudio 346: sc->buf = ptb->dummybuf;
347: sc->buflen = ptb->dummybuf_len;
348:
349: if (clock_gettime_tv(CLOCK_MONOTONIC, &sc->t_start) == -1)
350: err(1, "clock_gettime_tv");
1.1 djm 351: sc->t_last = sc->t_start;
1.62 procter 352: if (!timerisset(&mainstats.t_first))
353: mainstats.t_first = sc->t_start;
354: }
355:
356: static void
357: summary_display(void)
358: {
359: struct timeval t_cur, t_diff;
360: long double std_dev;
361: unsigned long long total_elapsed;
362: char *direction;
363:
364: if (!ptb->sflag) {
365: direction = "sent";
366: printf("--- %s tcpbench statistics ---\n", mainstats.host);
367: } else {
368: direction = "received";
369: printf("--- tcpbench server statistics ---\n");
370: }
371:
372: std_dev = sqrtl(mainstats.nvariance_mbps / mainstats.n_slices);
373:
374: if (clock_gettime_tv(CLOCK_MONOTONIC, &t_cur) == -1)
375: err(1, "clock_gettime_tv");
376: timersub(&t_cur, &mainstats.t_first, &t_diff);
377: total_elapsed = t_diff.tv_sec * 1000 + t_diff.tv_usec / 1000;
1.1 djm 378:
1.62 procter 379: printf("%llu bytes %s over %.3Lf seconds\n",
380: mainstats.total_bytes, direction, total_elapsed/1000.0L);
381: printf("bandwidth min/avg/max/std-dev = %.3Lf/%.3Lf/%.3Lf/%.3Lf Mbps\n",
382: mainstats.floor_mbps, mainstats.mean_mbps, mainstats.peak_mbps,
383: std_dev);
1.1 djm 384: }
385:
386: static void
1.20 claudio 387: tcp_stats_display(unsigned long long total_elapsed, long double mbps,
1.67 ! claudio 388: float bwperc, struct statctx *sc, struct tcp_info *tcpi)
1.11 claudio 389: {
390: int j;
1.58 bluhm 391:
1.11 claudio 392: printf("%12llu %14llu %12.3Lf %7.2f%% ", total_elapsed, sc->bytes,
393: mbps, bwperc);
1.58 bluhm 394:
1.20 claudio 395: if (ptb->kvars != NULL) {
396: for (j = 0; ptb->kvars[j] != NULL; j++) {
1.11 claudio 397: #define S(a) #a
398: #define P(b, v, f) \
1.67 ! claudio 399: if (strcmp(ptb->kvars[j], S(v)) == 0) { \
! 400: printf("%s"f, j > 0 ? "," : "", b->tcpi_##v); \
1.11 claudio 401: continue; \
402: }
1.67 ! claudio 403: P(tcpi, last_ack_recv, "%u")
! 404: P(tcpi, last_ack_sent, "%u")
! 405: P(tcpi, last_data_recv, "%u")
! 406: P(tcpi, last_data_sent, "%u")
! 407: P(tcpi, max_sndwnd, "%u")
! 408: P(tcpi, options, "%hhu")
! 409: P(tcpi, rcv_adv, "%u")
! 410: P(tcpi, rcv_mss, "%u")
! 411: P(tcpi, rcv_nxt, "%u")
! 412: P(tcpi, rcv_ooopack, "%u")
! 413: P(tcpi, rcv_space, "%u")
! 414: P(tcpi, rcv_up, "%u")
! 415: P(tcpi, rcv_wscale, "%hhu")
! 416: P(tcpi, rfbuf_cnt, "%u")
! 417: P(tcpi, rfbuf_ts, "%u")
! 418: P(tcpi, rtt, "%u")
! 419: P(tcpi, rttmin, "%u")
! 420: P(tcpi, rttvar, "%u")
! 421: P(tcpi, snd_cwnd, "%u")
! 422: P(tcpi, snd_max, "%u")
! 423: P(tcpi, snd_mss, "%u")
! 424: P(tcpi, snd_nxt, "%u")
! 425: P(tcpi, snd_rexmitpack, "%u")
! 426: P(tcpi, snd_ssthresh, "%u")
! 427: P(tcpi, snd_una, "%u")
! 428: P(tcpi, snd_wl1, "%u")
! 429: P(tcpi, snd_wl2, "%u")
! 430: P(tcpi, snd_wnd, "%u")
! 431: P(tcpi, snd_wnd, "%u")
! 432: P(tcpi, snd_wscale, "%hhu")
! 433: P(tcpi, snd_zerowin, "%u")
! 434: P(tcpi, so_rcv_sb_cc, "%u")
! 435: P(tcpi, so_rcv_sb_hiwat, "%u")
! 436: P(tcpi, so_rcv_sb_lowat, "%u")
! 437: P(tcpi, so_rcv_sb_wat, "%u")
! 438: P(tcpi, so_snd_sb_cc, "%u")
! 439: P(tcpi, so_snd_sb_hiwat, "%u")
! 440: P(tcpi, so_snd_sb_lowat, "%u")
! 441: P(tcpi, so_snd_sb_wat, "%u")
! 442: P(tcpi, ts_recent, "%u")
! 443: P(tcpi, ts_recent_age, "%u")
1.58 bluhm 444: #undef S
1.1 djm 445: #undef P
446: }
447: }
448: printf("\n");
449: }
450:
451: static void
1.20 claudio 452: tcp_process_slice(int fd, short event, void *bula)
1.1 djm 453: {
1.11 claudio 454: unsigned long long total_elapsed, since_last;
1.62 procter 455: long double mbps, old_mean_mbps, slice_mbps = 0;
1.11 claudio 456: float bwperc;
1.20 claudio 457: struct statctx *sc;
1.11 claudio 458: struct timeval t_cur, t_diff;
1.67 ! claudio 459: struct tcp_info tcpi;
! 460: socklen_t tcpilen;
1.58 bluhm 461:
1.62 procter 462: if (TAILQ_EMPTY(&sc_queue))
463: return; /* don't pollute stats */
464:
465: mainstats.n_slices++;
466:
1.20 claudio 467: TAILQ_FOREACH(sc, &sc_queue, entry) {
468: if (clock_gettime_tv(CLOCK_MONOTONIC, &t_cur) == -1)
469: err(1, "clock_gettime_tv");
1.67 ! claudio 470: if (ptb->kvars != NULL) { /* process kernel stats */
! 471: tcpilen = sizeof(tcpi);
! 472: if (getsockopt(sc->fd, IPPROTO_TCP, TCP_INFO,
! 473: &tcpi, &tcpilen) == -1)
! 474: err(1, "get tcp_info");
! 475: }
1.58 bluhm 476:
1.11 claudio 477: timersub(&t_cur, &sc->t_start, &t_diff);
478: total_elapsed = t_diff.tv_sec * 1000 + t_diff.tv_usec / 1000;
479: timersub(&t_cur, &sc->t_last, &t_diff);
480: since_last = t_diff.tv_sec * 1000 + t_diff.tv_usec / 1000;
1.60 stsp 481: if (since_last == 0)
482: continue;
1.11 claudio 483: bwperc = (sc->bytes * 100.0) / mainstats.slice_bytes;
484: mbps = (sc->bytes * 8) / (since_last * 1000.0);
485: slice_mbps += mbps;
1.58 bluhm 486:
1.67 ! claudio 487: tcp_stats_display(total_elapsed, mbps, bwperc, sc, &tcpi);
1.58 bluhm 488:
1.11 claudio 489: sc->t_last = t_cur;
490: sc->bytes = 0;
491: }
1.1 djm 492:
1.11 claudio 493: /* process stats for this slice */
494: if (slice_mbps > mainstats.peak_mbps)
495: mainstats.peak_mbps = slice_mbps;
1.62 procter 496: if (slice_mbps < mainstats.floor_mbps)
497: mainstats.floor_mbps = slice_mbps;
498: old_mean_mbps = mainstats.mean_mbps;
499: mainstats.mean_mbps += (slice_mbps - mainstats.mean_mbps) /
500: mainstats.n_slices;
501:
502: /* "Welford's method" for online variance
503: * see Knuth, TAoCP Volume 2, 3rd edn., p232 */
504: mainstats.nvariance_mbps += (slice_mbps - old_mean_mbps) *
505: (slice_mbps - mainstats.mean_mbps);
506:
1.20 claudio 507: printf("Conn: %3d Mbps: %12.3Lf Peak Mbps: %12.3Lf Avg Mbps: %12.3Lf\n",
508: mainstats.nconns, slice_mbps, mainstats.peak_mbps,
1.58 bluhm 509: mainstats.nconns ? slice_mbps / mainstats.nconns : 0);
1.62 procter 510:
1.20 claudio 511: mainstats.slice_bytes = 0;
512: set_slice_timer(mainstats.nconns > 0);
513: }
514:
515: static void
1.62 procter 516: udp_process_slice(int fd, short event, void *bula)
1.20 claudio 517: {
1.31 haesbaer 518: unsigned long long total_elapsed, since_last, pps;
1.62 procter 519: long double old_mean_mbps, slice_mbps;
1.20 claudio 520: struct timeval t_cur, t_diff;
521:
1.62 procter 522: mainstats.n_slices++;
523:
1.20 claudio 524: if (clock_gettime_tv(CLOCK_MONOTONIC, &t_cur) == -1)
525: err(1, "clock_gettime_tv");
1.62 procter 526:
527: timersub(&t_cur, &udp_sc->t_start, &t_diff);
1.20 claudio 528: total_elapsed = t_diff.tv_sec * 1000 + t_diff.tv_usec / 1000;
1.62 procter 529:
530: timersub(&t_cur, &udp_sc->t_last, &t_diff);
1.20 claudio 531: since_last = t_diff.tv_sec * 1000 + t_diff.tv_usec / 1000;
1.60 stsp 532: if (since_last == 0)
533: return;
1.62 procter 534:
535: slice_mbps = (udp_sc->bytes * 8) / (since_last * 1000.0);
536: pps = (udp_sc->udp_slice_pkts * 1000) / since_last;
537:
1.20 claudio 538: if (slice_mbps > mainstats.peak_mbps)
539: mainstats.peak_mbps = slice_mbps;
1.62 procter 540: if (slice_mbps < mainstats.floor_mbps)
541: mainstats.floor_mbps = slice_mbps;
542: old_mean_mbps = mainstats.mean_mbps;
543: mainstats.mean_mbps += (slice_mbps - mainstats.mean_mbps) /
544: mainstats.n_slices;
545:
546: /* "Welford's method" for online variance
547: * see Knuth, TAoCP Volume 2, 3rd edn., p232 */
548: mainstats.nvariance_mbps += (slice_mbps - old_mean_mbps) *
549: (slice_mbps - mainstats.mean_mbps);
550:
1.31 haesbaer 551: printf("Elapsed: %11llu Mbps: %11.3Lf Peak Mbps: %11.3Lf %s PPS: %7llu\n",
1.20 claudio 552: total_elapsed, slice_mbps, mainstats.peak_mbps,
553: ptb->sflag ? "Rx" : "Tx", pps);
554:
555: /* Clean up this slice time */
1.62 procter 556: udp_sc->t_last = t_cur;
557: udp_sc->bytes = 0;
558: udp_sc->udp_slice_pkts = 0;
559:
560: mainstats.slice_bytes = 0;
1.20 claudio 561: set_slice_timer(1);
1.11 claudio 562: }
1.1 djm 563:
1.20 claudio 564: static void
1.62 procter 565: udp_server_handle_sc(int fd, short event, void *bula)
1.11 claudio 566: {
1.62 procter 567: static int first_read = 1;
1.11 claudio 568: ssize_t n;
1.1 djm 569:
1.20 claudio 570: n = read(fd, ptb->dummybuf, ptb->dummybuf_len);
571: if (n == 0)
572: return;
573: else if (n == -1) {
1.34 haesbaer 574: if (errno != EINTR && errno != EWOULDBLOCK)
575: warn("fd %d read error", fd);
1.20 claudio 576: return;
577: }
1.58 bluhm 578:
1.20 claudio 579: if (ptb->vflag >= 3)
580: fprintf(stderr, "read: %zd bytes\n", n);
1.62 procter 581: if (first_read) {
582: first_read = 0;
583: stats_prepare(udp_sc);
1.20 claudio 584: set_slice_timer(1);
1.62 procter 585: }
1.20 claudio 586: /* Account packet */
1.62 procter 587: udp_sc->udp_slice_pkts++;
588: udp_sc->bytes += n;
589: mainstats.slice_bytes += n;
590: mainstats.total_bytes += n;
1.20 claudio 591: }
592:
593: static void
594: tcp_server_handle_sc(int fd, short event, void *v_sc)
595: {
596: struct statctx *sc = v_sc;
597: ssize_t n;
598:
599: n = read(sc->fd, sc->buf, sc->buflen);
600: if (n == -1) {
1.34 haesbaer 601: if (errno != EINTR && errno != EWOULDBLOCK)
602: warn("fd %d read error", sc->fd);
1.20 claudio 603: return;
604: } else if (n == 0) {
605: if (ptb->vflag)
606: fprintf(stderr, "%8d closed by remote end\n", sc->fd);
1.33 haesbaer 607:
608: TAILQ_REMOVE(&sc_queue, sc, entry);
609:
1.23 sthen 610: event_del(&sc->ev);
1.20 claudio 611: close(sc->fd);
1.33 haesbaer 612:
613: /* Some file descriptors are available again. */
614: if (evtimer_pending(&sc->tcp_ts->evt, NULL)) {
615: evtimer_del(&sc->tcp_ts->evt);
616: event_add(&sc->tcp_ts->ev, NULL);
617: }
618:
1.20 claudio 619: free(sc);
620: mainstats.nconns--;
621: return;
1.1 djm 622: }
1.20 claudio 623: if (ptb->vflag >= 3)
1.11 claudio 624: fprintf(stderr, "read: %zd bytes\n", n);
1.20 claudio 625: sc->bytes += n;
626: mainstats.slice_bytes += n;
1.62 procter 627: mainstats.total_bytes += n;
1.20 claudio 628: }
1.58 bluhm 629:
1.20 claudio 630: static void
1.33 haesbaer 631: tcp_server_accept(int fd, short event, void *arg)
1.20 claudio 632: {
1.33 haesbaer 633: struct tcpservsock *ts = arg;
1.49 chl 634: int sock;
1.20 claudio 635: struct statctx *sc;
636: struct sockaddr_storage ss;
637: socklen_t sslen;
1.66 bluhm 638: char tmp[NI_MAXHOST + 2 + NI_MAXSERV];
1.58 bluhm 639:
1.20 claudio 640: sslen = sizeof(ss);
1.33 haesbaer 641:
642: event_add(&ts->ev, NULL);
643: if (event & EV_TIMEOUT)
644: return;
1.48 guenther 645: if ((sock = accept4(fd, (struct sockaddr *)&ss, &sslen, SOCK_NONBLOCK))
646: == -1) {
1.33 haesbaer 647: /*
648: * Pause accept if we are out of file descriptors, or
649: * libevent will haunt us here too.
650: */
651: if (errno == ENFILE || errno == EMFILE) {
652: struct timeval evtpause = { 1, 0 };
653:
654: event_del(&ts->ev);
655: evtimer_add(&ts->evt, &evtpause);
1.38 deraadt 656: } else if (errno != EWOULDBLOCK && errno != EINTR &&
657: errno != ECONNABORTED)
1.33 haesbaer 658: warn("accept");
1.20 claudio 659: return;
660: }
661: saddr_ntop((struct sockaddr *)&ss, sslen,
662: tmp, sizeof(tmp));
1.24 haesbaer 663: if (ptb->Tflag != -1 && ss.ss_family == AF_INET) {
664: if (setsockopt(sock, IPPROTO_IP, IP_TOS,
665: &ptb->Tflag, sizeof(ptb->Tflag)))
666: err(1, "setsockopt IP_TOS");
667: }
668: if (ptb->Tflag != -1 && ss.ss_family == AF_INET6) {
669: if (setsockopt(sock, IPPROTO_IPV6, IPV6_TCLASS,
670: &ptb->Tflag, sizeof(ptb->Tflag)))
671: err(1, "setsockopt IPV6_TCLASS");
672: }
1.20 claudio 673: /* Alloc client structure and register reading callback */
674: if ((sc = calloc(1, sizeof(*sc))) == NULL)
675: err(1, "calloc");
1.33 haesbaer 676: sc->tcp_ts = ts;
1.20 claudio 677: sc->fd = sock;
678: stats_prepare(sc);
1.62 procter 679:
1.20 claudio 680: event_set(&sc->ev, sc->fd, EV_READ | EV_PERSIST,
681: tcp_server_handle_sc, sc);
682: event_add(&sc->ev, NULL);
683: TAILQ_INSERT_TAIL(&sc_queue, sc, entry);
1.62 procter 684:
1.20 claudio 685: mainstats.nconns++;
1.36 haesbaer 686: if (mainstats.nconns == 1)
687: set_slice_timer(1);
1.20 claudio 688: if (ptb->vflag)
1.28 haesbaer 689: fprintf(stderr, "Accepted connection from %s, fd = %d\n",
690: tmp, sc->fd);
1.1 djm 691: }
692:
1.20 claudio 693: static void
1.62 procter 694: server_init(struct addrinfo *aitop)
1.1 djm 695: {
1.11 claudio 696: int sock, on = 1;
1.1 djm 697: struct addrinfo *ai;
1.20 claudio 698: struct event *ev;
1.33 haesbaer 699: struct tcpservsock *ts;
1.11 claudio 700: nfds_t lnfds;
1.1 djm 701:
1.11 claudio 702: lnfds = 0;
1.1 djm 703: for (ai = aitop; ai != NULL; ai = ai->ai_next) {
1.66 bluhm 704: char tmp[NI_MAXHOST + 2 + NI_MAXSERV];
705:
1.1 djm 706: saddr_ntop(ai->ai_addr, ai->ai_addrlen, tmp, sizeof(tmp));
1.20 claudio 707: if (ptb->vflag)
708: fprintf(stderr, "Try to bind to %s\n", tmp);
1.1 djm 709: if ((sock = socket(ai->ai_family, ai->ai_socktype,
710: ai->ai_protocol)) == -1) {
711: if (ai->ai_next == NULL)
712: err(1, "socket");
1.20 claudio 713: if (ptb->vflag)
1.1 djm 714: warn("socket");
715: continue;
716: }
1.64 bluhm 717: if (ptb->Dflag) {
718: if (setsockopt(sock, SOL_SOCKET, SO_DEBUG,
719: &ptb->Dflag, sizeof(ptb->Dflag)))
720: err(1, "setsockopt SO_DEBUG");
721: }
1.24 haesbaer 722: if (ptb->Tflag != -1 && ai->ai_family == AF_INET) {
723: if (setsockopt(sock, IPPROTO_IP, IP_TOS,
724: &ptb->Tflag, sizeof(ptb->Tflag)))
725: err(1, "setsockopt IP_TOS");
726: }
727: if (ptb->Tflag != -1 && ai->ai_family == AF_INET6) {
728: if (setsockopt(sock, IPPROTO_IPV6, IPV6_TCLASS,
729: &ptb->Tflag, sizeof(ptb->Tflag)))
730: err(1, "setsockopt IPV6_TCLASS");
731: }
1.1 djm 732: if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
733: &on, sizeof(on)) == -1)
734: warn("reuse port");
735: if (bind(sock, ai->ai_addr, ai->ai_addrlen) != 0) {
736: if (ai->ai_next == NULL)
737: err(1, "bind");
1.20 claudio 738: if (ptb->vflag)
1.1 djm 739: warn("bind");
740: close(sock);
741: continue;
742: }
1.20 claudio 743: if (ptb->Sflag) {
1.1 djm 744: if (setsockopt(sock, SOL_SOCKET, SO_RCVBUF,
1.20 claudio 745: &ptb->Sflag, sizeof(ptb->Sflag)) == -1)
1.54 bluhm 746: warn("set receive socket buffer size");
1.1 djm 747: }
1.20 claudio 748: if (TCP_MODE) {
749: if (listen(sock, 64) == -1) {
750: if (ai->ai_next == NULL)
751: err(1, "listen");
752: if (ptb->vflag)
753: warn("listen");
754: close(sock);
755: continue;
756: }
1.1 djm 757: }
1.33 haesbaer 758: if (UDP_MODE) {
759: if ((ev = calloc(1, sizeof(*ev))) == NULL)
760: err(1, "calloc");
1.20 claudio 761: event_set(ev, sock, EV_READ | EV_PERSIST,
1.62 procter 762: udp_server_handle_sc, NULL);
1.33 haesbaer 763: event_add(ev, NULL);
764: } else {
765: if ((ts = calloc(1, sizeof(*ts))) == NULL)
766: err(1, "calloc");
767:
768: ts->fd = sock;
769: evtimer_set(&ts->evt, tcp_server_accept, ts);
770: event_set(&ts->ev, ts->fd, EV_READ,
771: tcp_server_accept, ts);
772: event_add(&ts->ev, NULL);
773: }
1.20 claudio 774: if (ptb->vflag >= 3)
775: fprintf(stderr, "bound to fd %d\n", sock);
1.11 claudio 776: lnfds++;
1.1 djm 777: }
1.51 claudio 778: if (!ptb->Uflag)
779: freeaddrinfo(aitop);
1.11 claudio 780: if (lnfds == 0)
1.1 djm 781: errx(1, "No working listen addresses found");
1.58 bluhm 782: }
1.11 claudio 783:
784: static void
1.20 claudio 785: client_handle_sc(int fd, short event, void *v_sc)
786: {
787: struct statctx *sc = v_sc;
788: ssize_t n;
1.51 claudio 789: size_t blen = sc->buflen;
1.1 djm 790:
1.51 claudio 791: if (ptb->Rflag)
792: blen = arc4random_uniform(blen) + 1;
793: if ((n = write(sc->fd, sc->buf, blen)) == -1) {
1.34 haesbaer 794: if (errno == EINTR || errno == EWOULDBLOCK ||
1.20 claudio 795: (UDP_MODE && errno == ENOBUFS))
1.34 haesbaer 796: return;
1.62 procter 797: warn("write");
798: wrapup(1);
1.11 claudio 799: }
1.58 bluhm 800: if (TCP_MODE && n == 0) {
1.28 haesbaer 801: fprintf(stderr, "Remote end closed connection");
1.62 procter 802: wrapup(1);
1.1 djm 803: }
1.20 claudio 804: if (ptb->vflag >= 3)
1.28 haesbaer 805: fprintf(stderr, "write: %zd bytes\n", n);
1.20 claudio 806: sc->bytes += n;
807: mainstats.slice_bytes += n;
1.62 procter 808: mainstats.total_bytes += n;
1.20 claudio 809: if (UDP_MODE)
810: sc->udp_slice_pkts++;
1.1 djm 811: }
812:
1.20 claudio 813: static void
1.62 procter 814: client_init(struct addrinfo *aitop, int nconn, struct addrinfo *aib)
1.1 djm 815: {
1.20 claudio 816: struct statctx *sc;
817: struct addrinfo *ai;
1.14 claudio 818: int i, r, sock;
1.1 djm 819:
1.4 henning 820: for (i = 0; i < nconn; i++) {
821: for (sock = -1, ai = aitop; ai != NULL; ai = ai->ai_next) {
1.66 bluhm 822: char tmp[NI_MAXHOST + 2 + NI_MAXSERV];
823:
1.4 henning 824: saddr_ntop(ai->ai_addr, ai->ai_addrlen, tmp,
825: sizeof(tmp));
1.20 claudio 826: if (ptb->vflag && i == 0)
1.4 henning 827: fprintf(stderr, "Trying %s\n", tmp);
828: if ((sock = socket(ai->ai_family, ai->ai_socktype,
829: ai->ai_protocol)) == -1) {
830: if (ai->ai_next == NULL)
831: err(1, "socket");
1.20 claudio 832: if (ptb->vflag)
1.4 henning 833: warn("socket");
834: continue;
835: }
1.64 bluhm 836: if (ptb->Dflag) {
837: if (setsockopt(sock, SOL_SOCKET, SO_DEBUG,
838: &ptb->Dflag, sizeof(ptb->Dflag)))
839: err(1, "setsockopt SO_DEBUG");
840: }
1.25 haesbaer 841: if (aib != NULL) {
842: saddr_ntop(aib->ai_addr, aib->ai_addrlen,
843: tmp, sizeof(tmp));
844: if (ptb->vflag)
845: fprintf(stderr,
846: "Try to bind to %s\n", tmp);
847: if (bind(sock, (struct sockaddr *)aib->ai_addr,
848: aib->ai_addrlen) == -1)
849: err(1, "bind");
850: }
1.24 haesbaer 851: if (ptb->Tflag != -1 && ai->ai_family == AF_INET) {
852: if (setsockopt(sock, IPPROTO_IP, IP_TOS,
853: &ptb->Tflag, sizeof(ptb->Tflag)))
854: err(1, "setsockopt IP_TOS");
855: }
856: if (ptb->Tflag != -1 && ai->ai_family == AF_INET6) {
857: if (setsockopt(sock, IPPROTO_IPV6, IPV6_TCLASS,
858: &ptb->Tflag, sizeof(ptb->Tflag)))
859: err(1, "setsockopt IPV6_TCLASS");
860: }
1.20 claudio 861: if (ptb->Sflag) {
1.4 henning 862: if (setsockopt(sock, SOL_SOCKET, SO_SNDBUF,
1.20 claudio 863: &ptb->Sflag, sizeof(ptb->Sflag)) == -1)
1.54 bluhm 864: warn("set send socket buffer size");
1.4 henning 865: }
866: if (connect(sock, ai->ai_addr, ai->ai_addrlen) != 0) {
867: if (ai->ai_next == NULL)
868: err(1, "connect");
1.20 claudio 869: if (ptb->vflag)
1.4 henning 870: warn("connect");
871: close(sock);
872: sock = -1;
873: continue;
874: }
875: break;
1.1 djm 876: }
1.4 henning 877: if (sock == -1)
878: errx(1, "No host found");
1.50 krw 879: if ((r = fcntl(sock, F_GETFL)) == -1)
1.4 henning 880: err(1, "fcntl(F_GETFL)");
881: r |= O_NONBLOCK;
882: if (fcntl(sock, F_SETFL, r) == -1)
883: err(1, "fcntl(F_SETFL, O_NONBLOCK)");
1.20 claudio 884: /* Alloc and prepare stats */
885: if (TCP_MODE) {
886: if ((sc = calloc(1, sizeof(*sc))) == NULL)
887: err(1, "calloc");
1.62 procter 888: } else
889: sc = udp_sc;
890:
1.20 claudio 891: sc->fd = sock;
892: stats_prepare(sc);
1.62 procter 893:
1.20 claudio 894: event_set(&sc->ev, sc->fd, EV_WRITE | EV_PERSIST,
895: client_handle_sc, sc);
896: event_add(&sc->ev, NULL);
897: TAILQ_INSERT_TAIL(&sc_queue, sc, entry);
1.62 procter 898:
1.20 claudio 899: mainstats.nconns++;
1.36 haesbaer 900: if (mainstats.nconns == 1)
901: set_slice_timer(1);
1.14 claudio 902: }
1.51 claudio 903: if (!ptb->Uflag)
904: freeaddrinfo(aitop);
1.35 haesbaer 905: if (aib != NULL)
906: freeaddrinfo(aib);
1.14 claudio 907:
1.20 claudio 908: if (ptb->vflag && nconn > 1)
1.29 haesbaer 909: fprintf(stderr, "%d connections established\n",
910: mainstats.nconns);
1.14 claudio 911: }
912:
1.24 haesbaer 913: static int
914: map_tos(char *s, int *val)
915: {
916: /* DiffServ Codepoints and other TOS mappings */
917: const struct toskeywords {
918: const char *keyword;
919: int val;
920: } *t, toskeywords[] = {
921: { "af11", IPTOS_DSCP_AF11 },
922: { "af12", IPTOS_DSCP_AF12 },
923: { "af13", IPTOS_DSCP_AF13 },
924: { "af21", IPTOS_DSCP_AF21 },
925: { "af22", IPTOS_DSCP_AF22 },
926: { "af23", IPTOS_DSCP_AF23 },
927: { "af31", IPTOS_DSCP_AF31 },
928: { "af32", IPTOS_DSCP_AF32 },
929: { "af33", IPTOS_DSCP_AF33 },
930: { "af41", IPTOS_DSCP_AF41 },
931: { "af42", IPTOS_DSCP_AF42 },
932: { "af43", IPTOS_DSCP_AF43 },
933: { "critical", IPTOS_PREC_CRITIC_ECP },
934: { "cs0", IPTOS_DSCP_CS0 },
935: { "cs1", IPTOS_DSCP_CS1 },
936: { "cs2", IPTOS_DSCP_CS2 },
937: { "cs3", IPTOS_DSCP_CS3 },
938: { "cs4", IPTOS_DSCP_CS4 },
939: { "cs5", IPTOS_DSCP_CS5 },
940: { "cs6", IPTOS_DSCP_CS6 },
941: { "cs7", IPTOS_DSCP_CS7 },
942: { "ef", IPTOS_DSCP_EF },
943: { "inetcontrol", IPTOS_PREC_INTERNETCONTROL },
944: { "lowdelay", IPTOS_LOWDELAY },
945: { "netcontrol", IPTOS_PREC_NETCONTROL },
946: { "reliability", IPTOS_RELIABILITY },
947: { "throughput", IPTOS_THROUGHPUT },
1.58 bluhm 948: { NULL, -1 },
1.24 haesbaer 949: };
1.58 bluhm 950:
1.24 haesbaer 951: for (t = toskeywords; t->keyword != NULL; t++) {
952: if (strcmp(s, t->keyword) == 0) {
953: *val = t->val;
954: return (1);
955: }
956: }
1.58 bluhm 957:
1.24 haesbaer 958: return (0);
959: }
960:
1.30 henning 961: static void
962: quit(int sig, short event, void *arg)
963: {
1.62 procter 964: wrapup(0);
965: }
966:
967: static void
968: wrapup(int err)
969: {
970: const int transfers = timerisset(&mainstats.t_first);
971: const int stats = (mainstats.floor_mbps != INFINITY);
972:
973: if (transfers) {
974: if (!stats) {
975: if (UDP_MODE)
976: udp_process_slice(0, 0, NULL);
977: else
978: tcp_process_slice(0, 0, NULL);
979: }
980:
981: summary_display();
982: }
983:
1.63 sthen 984: if (err != -1)
985: exit(err);
1.30 henning 986: }
987:
1.1 djm 988: int
989: main(int argc, char **argv)
990: {
1.30 henning 991: struct timeval tv;
1.37 haesbaer 992: unsigned int secs, rtable;
1.1 djm 993:
994: char kerr[_POSIX2_LINE_MAX], *tmp;
1.25 haesbaer 995: struct addrinfo *aitop, *aib, hints;
1.1 djm 996: const char *errstr;
1.11 claudio 997: struct rlimit rl;
1.20 claudio 998: int ch, herr, nconn;
1.42 dlg 999: int family = PF_UNSPEC;
1.25 haesbaer 1000: const char *host = NULL, *port = DEFAULT_PORT, *srcbind = NULL;
1.63 sthen 1001: struct event ev_sigint, ev_sigterm, ev_sighup, ev_siginfo, ev_progtimer;
1.51 claudio 1002: struct sockaddr_un sock_un;
1.1 djm 1003:
1.20 claudio 1004: /* Init world */
1.45 millert 1005: setvbuf(stdout, NULL, _IOLBF, 0);
1.20 claudio 1006: ptb = &tcpbench;
1007: ptb->dummybuf_len = 0;
1.64 bluhm 1008: ptb->Dflag = 0;
1.51 claudio 1009: ptb->Sflag = ptb->sflag = ptb->vflag = ptb->Rflag = ptb->Uflag = 0;
1.20 claudio 1010: ptb->kvars = NULL;
1011: ptb->rflag = DEFAULT_STATS_INTERVAL;
1.24 haesbaer 1012: ptb->Tflag = -1;
1.20 claudio 1013: nconn = 1;
1.25 haesbaer 1014: aib = NULL;
1.30 henning 1015: secs = 0;
1.1 djm 1016:
1.64 bluhm 1017: while ((ch = getopt(argc, argv, "46b:B:Dhlk:n:p:Rr:sS:t:T:uUvV:"))
1018: != -1) {
1.1 djm 1019: switch (ch) {
1.42 dlg 1020: case '4':
1021: family = PF_INET;
1022: break;
1023: case '6':
1024: family = PF_INET6;
1025: break;
1.25 haesbaer 1026: case 'b':
1027: srcbind = optarg;
1.64 bluhm 1028: break;
1029: case 'D':
1030: ptb->Dflag = 1;
1.25 haesbaer 1031: break;
1.1 djm 1032: case 'l':
1033: list_kvars();
1034: exit(0);
1035: case 'k':
1036: if ((tmp = strdup(optarg)) == NULL)
1.53 benno 1037: err(1, "strdup");
1.20 claudio 1038: ptb->kvars = check_prepare_kvars(tmp);
1.1 djm 1039: free(tmp);
1040: break;
1.51 claudio 1041: case 'R':
1042: ptb->Rflag = 1;
1043: break;
1.1 djm 1044: case 'r':
1.20 claudio 1045: ptb->rflag = strtonum(optarg, 0, 60 * 60 * 24 * 1000,
1.1 djm 1046: &errstr);
1047: if (errstr != NULL)
1048: errx(1, "statistics interval is %s: %s",
1049: errstr, optarg);
1050: break;
1051: case 'p':
1052: port = optarg;
1053: break;
1054: case 's':
1.20 claudio 1055: ptb->sflag = 1;
1.1 djm 1056: break;
1057: case 'S':
1.20 claudio 1058: ptb->Sflag = strtonum(optarg, 0, 1024*1024*1024,
1.1 djm 1059: &errstr);
1060: if (errstr != NULL)
1.54 bluhm 1061: errx(1, "socket buffer size is %s: %s",
1.1 djm 1062: errstr, optarg);
1063: break;
1064: case 'B':
1.20 claudio 1065: ptb->dummybuf_len = strtonum(optarg, 0, 1024*1024*1024,
1.1 djm 1066: &errstr);
1067: if (errstr != NULL)
1068: errx(1, "read/write buffer size is %s: %s",
1069: errstr, optarg);
1070: break;
1071: case 'v':
1.20 claudio 1072: ptb->vflag++;
1.9 claudio 1073: break;
1074: case 'V':
1.37 haesbaer 1075: rtable = (unsigned int)strtonum(optarg, 0,
1.9 claudio 1076: RT_TABLEID_MAX, &errstr);
1077: if (errstr)
1.17 guenther 1078: errx(1, "rtable value is %s: %s",
1.9 claudio 1079: errstr, optarg);
1.37 haesbaer 1080: if (setrtable(rtable) == -1)
1081: err(1, "setrtable");
1.1 djm 1082: break;
1.4 henning 1083: case 'n':
1084: nconn = strtonum(optarg, 0, 65535, &errstr);
1085: if (errstr != NULL)
1086: errx(1, "number of connections is %s: %s",
1087: errstr, optarg);
1088: break;
1.20 claudio 1089: case 'u':
1090: ptb->uflag = 1;
1.24 haesbaer 1091: break;
1.51 claudio 1092: case 'U':
1093: ptb->Uflag = 1;
1094: break;
1.24 haesbaer 1095: case 'T':
1096: if (map_tos(optarg, &ptb->Tflag))
1097: break;
1098: errstr = NULL;
1099: if (strlen(optarg) > 1 && optarg[0] == '0' &&
1100: optarg[1] == 'x')
1101: ptb->Tflag = (int)strtol(optarg, NULL, 16);
1102: else
1103: ptb->Tflag = (int)strtonum(optarg, 0, 255,
1104: &errstr);
1105: if (ptb->Tflag == -1 || ptb->Tflag > 255 || errstr)
1106: errx(1, "illegal tos value %s", optarg);
1.20 claudio 1107: break;
1.30 henning 1108: case 't':
1109: secs = strtonum(optarg, 1, UINT_MAX, &errstr);
1110: if (errstr != NULL)
1111: errx(1, "secs is %s: %s",
1112: errstr, optarg);
1113: break;
1.1 djm 1114: case 'h':
1115: default:
1116: usage();
1117: }
1118: }
1119:
1.67 ! claudio 1120: if (pledge("stdio unveil rpath dns inet unix id", NULL) == -1)
1.47 benno 1121: err(1, "pledge");
1122:
1.1 djm 1123: argv += optind;
1124: argc -= optind;
1.51 claudio 1125: if ((argc != (ptb->sflag && !ptb->Uflag ? 0 : 1)) ||
1.20 claudio 1126: (UDP_MODE && (ptb->kvars || nconn != 1)))
1.1 djm 1127: usage();
1.4 henning 1128:
1.57 deraadt 1129: if (!ptb->sflag || ptb->Uflag)
1.62 procter 1130: mainstats.host = host = argv[0];
1.57 deraadt 1131:
1132: if (ptb->Uflag)
1133: if (unveil(host, "rwc") == -1)
1.65 beck 1134: err(1, "unveil %s", host);
1.57 deraadt 1135:
1.51 claudio 1136: if (pledge("stdio id dns inet unix", NULL) == -1)
1.47 benno 1137: err(1, "pledge");
1138:
1.20 claudio 1139: /*
1140: * Rationale,
1141: * If TCP, use a big buffer with big reads/writes.
1142: * If UDP, use a big buffer in server and a buffer the size of a
1143: * ethernet packet.
1144: */
1145: if (!ptb->dummybuf_len) {
1.58 bluhm 1146: if (ptb->sflag || TCP_MODE)
1.20 claudio 1147: ptb->dummybuf_len = DEFAULT_BUF;
1148: else
1149: ptb->dummybuf_len = DEFAULT_UDP_PKT;
1150: }
1.1 djm 1151:
1.13 claudio 1152: bzero(&hints, sizeof(hints));
1.42 dlg 1153: hints.ai_family = family;
1.25 haesbaer 1154: if (UDP_MODE) {
1.20 claudio 1155: hints.ai_socktype = SOCK_DGRAM;
1.25 haesbaer 1156: hints.ai_protocol = IPPROTO_UDP;
1.27 haesbaer 1157: } else {
1.20 claudio 1158: hints.ai_socktype = SOCK_STREAM;
1.25 haesbaer 1159: hints.ai_protocol = IPPROTO_TCP;
1160: }
1.51 claudio 1161: if (ptb->Uflag) {
1162: hints.ai_family = AF_UNIX;
1163: hints.ai_protocol = 0;
1164: sock_un.sun_family = AF_UNIX;
1165: if (strlcpy(sock_un.sun_path, host, sizeof(sock_un.sun_path)) >=
1166: sizeof(sock_un.sun_path))
1167: errx(1, "socket name '%s' too long", host);
1168: hints.ai_addr = (struct sockaddr *)&sock_un;
1169: hints.ai_addrlen = sizeof(sock_un);
1170: aitop = &hints;
1171: } else {
1172: if (ptb->sflag)
1173: hints.ai_flags = AI_PASSIVE;
1174: if (srcbind != NULL) {
1175: hints.ai_flags |= AI_NUMERICHOST;
1176: herr = getaddrinfo(srcbind, NULL, &hints, &aib);
1177: hints.ai_flags &= ~AI_NUMERICHOST;
1178: if (herr != 0) {
1179: if (herr == EAI_SYSTEM)
1180: err(1, "getaddrinfo");
1181: else
1182: errx(1, "getaddrinfo: %s",
1183: gai_strerror(herr));
1184: }
1185: }
1186: if ((herr = getaddrinfo(host, port, &hints, &aitop)) != 0) {
1.25 haesbaer 1187: if (herr == EAI_SYSTEM)
1188: err(1, "getaddrinfo");
1189: else
1190: errx(1, "getaddrinfo: %s", gai_strerror(herr));
1191: }
1192: }
1.1 djm 1193:
1.51 claudio 1194: if (pledge("stdio id inet unix", NULL) == -1)
1.47 benno 1195: err(1, "pledge");
1196:
1.11 claudio 1197: if (getrlimit(RLIMIT_NOFILE, &rl) == -1)
1198: err(1, "getrlimit");
1199: if (rl.rlim_cur < MAX_FD)
1200: rl.rlim_cur = MAX_FD;
1201: if (setrlimit(RLIMIT_NOFILE, &rl))
1202: err(1, "setrlimit");
1203: if (getrlimit(RLIMIT_NOFILE, &rl) == -1)
1204: err(1, "getrlimit");
1.47 benno 1205:
1.51 claudio 1206: if (pledge("stdio inet unix", NULL) == -1)
1.47 benno 1207: err(1, "pledge");
1208:
1.20 claudio 1209: /* Init world */
1210: TAILQ_INIT(&sc_queue);
1211: if ((ptb->dummybuf = malloc(ptb->dummybuf_len)) == NULL)
1212: err(1, "malloc");
1213: arc4random_buf(ptb->dummybuf, ptb->dummybuf_len);
1214:
1.62 procter 1215: timerclear(&mainstats.t_first);
1216: mainstats.floor_mbps = INFINITY;
1217:
1.20 claudio 1218: /* Setup libevent and signals */
1219: event_init();
1220: signal_set(&ev_sigterm, SIGTERM, signal_handler, NULL);
1221: signal_set(&ev_sighup, SIGHUP, signal_handler, NULL);
1222: signal_set(&ev_sigint, SIGINT, signal_handler, NULL);
1.63 sthen 1223: signal_set(&ev_siginfo, SIGINFO, signal_handler, NULL);
1.20 claudio 1224: signal_add(&ev_sigint, NULL);
1225: signal_add(&ev_sigterm, NULL);
1226: signal_add(&ev_sighup, NULL);
1.63 sthen 1227: signal_add(&ev_siginfo, NULL);
1.20 claudio 1228: signal(SIGPIPE, SIG_IGN);
1.58 bluhm 1229:
1.27 haesbaer 1230: if (UDP_MODE) {
1231: if ((udp_sc = calloc(1, sizeof(*udp_sc))) == NULL)
1232: err(1, "calloc");
1233: udp_sc->fd = -1;
1.62 procter 1234: evtimer_set(&mainstats.timer, udp_process_slice, NULL);
1.27 haesbaer 1235: } else {
1.20 claudio 1236: print_tcp_header();
1237: evtimer_set(&mainstats.timer, tcp_process_slice, NULL);
1.27 haesbaer 1238: }
1.20 claudio 1239:
1.27 haesbaer 1240: if (ptb->sflag)
1.62 procter 1241: server_init(aitop);
1.30 henning 1242: else {
1243: if (secs > 0) {
1244: timerclear(&tv);
1245: tv.tv_sec = secs + 1;
1246: evtimer_set(&ev_progtimer, quit, NULL);
1247: evtimer_add(&ev_progtimer, &tv);
1248: }
1.62 procter 1249: client_init(aitop, nconn, aib);
1.47 benno 1250:
1.67 ! claudio 1251: if (pledge("stdio inet", NULL) == -1)
1.47 benno 1252: err(1, "pledge");
1.30 henning 1253: }
1.47 benno 1254:
1.20 claudio 1255: /* libevent main loop*/
1256: event_dispatch();
1.1 djm 1257:
1.20 claudio 1258: return (0);
1.1 djm 1259: }
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