Annotation of src/usr.bin/tcpbench/tcpbench.c, Revision 1.53
1.53 ! benno 1: /* $OpenBSD: tcpbench.c,v 1.52 2016/09/19 18:58:39 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>
52:
53: #include <kvm.h>
54: #include <nlist.h>
55:
1.11 claudio 56: #define DEFAULT_PORT "12345"
57: #define DEFAULT_STATS_INTERVAL 1000 /* ms */
1.20 claudio 58: #define DEFAULT_BUF (256 * 1024)
59: #define DEFAULT_UDP_PKT (1500 - 28) /* TODO don't hardcode this */
60: #define TCP_MODE !ptb->uflag
61: #define UDP_MODE ptb->uflag
1.11 claudio 62: #define MAX_FD 1024
1.1 djm 63:
1.20 claudio 64: /* Our tcpbench globals */
65: struct {
66: int Sflag; /* Socket buffer size (tcp mode) */
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: kvm_t *kvmh; /* Kvm handler */
75: char **kvars; /* Kvm enabled vars */
76: u_long ktcbtab; /* Ktcb */
77: char *dummybuf; /* IO buffer */
78: size_t dummybuf_len; /* IO buffer len */
79: } tcpbench, *ptb;
1.1 djm 80:
1.33 haesbaer 81: struct tcpservsock {
82: struct event ev;
83: struct event evt;
84: int fd;
85: };
86:
1.20 claudio 87: /* stats for a single tcp connection, udp uses only one */
1.1 djm 88: struct statctx {
1.20 claudio 89: TAILQ_ENTRY(statctx) entry;
1.11 claudio 90: struct timeval t_start, t_last;
1.1 djm 91: unsigned long long bytes;
1.20 claudio 92: int fd;
93: char *buf;
94: size_t buflen;
95: struct event ev;
96: /* TCP only */
1.33 haesbaer 97: struct tcpservsock *tcp_ts;
1.20 claudio 98: u_long tcp_tcbaddr;
99: /* UDP only */
100: u_long udp_slice_pkts;
1.1 djm 101: };
102:
1.20 claudio 103: static void signal_handler(int, short, void *);
104: static void saddr_ntop(const struct sockaddr *, socklen_t, char *, size_t);
105: static void drop_gid(void);
106: static void set_slice_timer(int);
107: static void print_tcp_header(void);
108: static void kget(u_long, void *, size_t);
109: static u_long kfind_tcb(int);
110: static void kupdate_stats(u_long, struct inpcb *, struct tcpcb *,
111: struct socket *);
112: static void list_kvars(void);
113: static void check_kvar(const char *);
114: static char ** check_prepare_kvars(char *);
115: static void stats_prepare(struct statctx *);
116: static void tcp_stats_display(unsigned long long, long double, float,
117: struct statctx *, struct inpcb *, struct tcpcb *, struct socket *);
118: static void tcp_process_slice(int, short, void *);
119: static void tcp_server_handle_sc(int, short, void *);
120: static void tcp_server_accept(int, short, void *);
121: static void server_init(struct addrinfo *, struct statctx *);
122: static void client_handle_sc(int, short, void *);
1.25 haesbaer 123: static void client_init(struct addrinfo *, int, struct statctx *,
124: struct addrinfo *);
1.20 claudio 125: static int clock_gettime_tv(clockid_t, struct timeval *);
126: static void udp_server_handle_sc(int, short, void *);
127: static void udp_process_slice(int, short, void *);
1.24 haesbaer 128: static int map_tos(char *, int *);
1.11 claudio 129: /*
130: * We account the mainstats here, that is the stats
131: * for all connections, all variables starting with slice
132: * are used to account information for the timeslice
133: * between each output. Peak variables record the highest
134: * between all slices so far.
135: */
136: static struct {
137: unsigned long long slice_bytes; /* bytes for last slice */
138: long double peak_mbps; /* peak mbps so far */
139: int nconns; /* connected clients */
1.20 claudio 140: struct event timer; /* process timer */
1.11 claudio 141: } mainstats;
142:
1.20 claudio 143: /* When adding variables, also add to tcp_stats_display() */
1.1 djm 144: static const char *allowed_kvars[] = {
145: "inpcb.inp_flags",
146: "sockb.so_rcv.sb_cc",
1.26 haesbaer 147: "sockb.so_rcv.sb_hiwat",
1.19 claudio 148: "sockb.so_rcv.sb_wat",
1.1 djm 149: "sockb.so_snd.sb_cc",
1.26 haesbaer 150: "sockb.so_snd.sb_hiwat",
1.19 claudio 151: "sockb.so_snd.sb_wat",
1.26 haesbaer 152: "tcpcb.last_ack_sent",
153: "tcpcb.max_sndwnd",
154: "tcpcb.rcv_adv",
155: "tcpcb.rcv_nxt",
156: "tcpcb.rcv_scale",
157: "tcpcb.rcv_wnd",
158: "tcpcb.rfbuf_cnt",
159: "tcpcb.rfbuf_ts",
160: "tcpcb.snd_cwnd",
161: "tcpcb.snd_max",
162: "tcpcb.snd_nxt",
163: "tcpcb.snd_scale",
164: "tcpcb.snd_ssthresh",
1.1 djm 165: "tcpcb.snd_una",
166: "tcpcb.snd_wl1",
167: "tcpcb.snd_wl2",
168: "tcpcb.snd_wnd",
169: "tcpcb.t_rcvtime",
1.26 haesbaer 170: "tcpcb.t_rtseq",
171: "tcpcb.t_rttmin",
1.1 djm 172: "tcpcb.t_rtttime",
1.26 haesbaer 173: "tcpcb.t_rttvar",
1.1 djm 174: "tcpcb.t_srtt",
1.26 haesbaer 175: "tcpcb.ts_recent",
1.19 claudio 176: "tcpcb.ts_recent_age",
1.1 djm 177: NULL
178: };
179:
1.20 claudio 180: TAILQ_HEAD(, statctx) sc_queue;
1.1 djm 181:
182: static void __dead
183: usage(void)
184: {
185: fprintf(stderr,
1.6 jmc 186: "usage: tcpbench -l\n"
1.51 claudio 187: " tcpbench [-46RUuv] [-B buf] [-b addr] [-k kvars] [-n connections]\n"
1.25 haesbaer 188: " [-p port] [-r interval] [-S space] [-T toskeyword]\n"
1.30 henning 189: " [-t secs] [-V rtable] hostname\n"
1.51 claudio 190: " tcpbench -s [-46Uuv] [-B buf] [-k kvars] [-p port] [-r interval]\n"
191: " [-S space] [-T toskeyword] [-V rtable] [hostname]\n");
1.1 djm 192: exit(1);
193: }
194:
195: static void
1.20 claudio 196: signal_handler(int sig, short event, void *bula)
197: {
198: /*
199: * signal handler rules don't apply, libevent decouples for us
200: */
201: switch (sig) {
202: case SIGINT:
203: case SIGTERM:
204: case SIGHUP:
205: warnx("Terminated by signal %d", sig);
206: exit(0);
207: break; /* NOTREACHED */
208: default:
209: errx(1, "unexpected signal %d", sig);
210: break; /* NOTREACHED */
211: }
212: }
213:
214: static void
1.1 djm 215: saddr_ntop(const struct sockaddr *addr, socklen_t alen, char *buf, size_t len)
216: {
217: char hbuf[NI_MAXHOST], pbuf[NI_MAXSERV];
218: int herr;
219:
1.51 claudio 220: if (addr->sa_family == AF_UNIX) {
221: struct sockaddr_un *sun = (struct sockaddr_un *)addr;
222: snprintf(buf, len, "%s", sun->sun_path);
223: return;
224: }
1.3 djm 225: if ((herr = getnameinfo(addr, alen, hbuf, sizeof(hbuf),
226: pbuf, sizeof(pbuf), NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
1.1 djm 227: if (herr == EAI_SYSTEM)
228: err(1, "getnameinfo");
229: else
230: errx(1, "getnameinfo: %s", gai_strerror(herr));
231: }
232: snprintf(buf, len, "[%s]:%s", hbuf, pbuf);
233: }
234:
235: static void
1.20 claudio 236: drop_gid(void)
237: {
238: gid_t gid;
239:
240: gid = getgid();
241: if (setresgid(gid, gid, gid) == -1)
242: err(1, "setresgid");
243: }
244:
245: static void
246: set_slice_timer(int on)
1.11 claudio 247: {
1.20 claudio 248: struct timeval tv;
1.11 claudio 249:
1.20 claudio 250: if (ptb->rflag == 0)
1.11 claudio 251: return;
252:
1.20 claudio 253: if (on) {
254: if (evtimer_pending(&mainstats.timer, NULL))
255: return;
256: timerclear(&tv);
257: /* XXX Is there a better way to do this ? */
258: tv.tv_sec = ptb->rflag / 1000;
259: tv.tv_usec = (ptb->rflag % 1000) * 1000;
260:
261: evtimer_add(&mainstats.timer, &tv);
262: } else if (evtimer_pending(&mainstats.timer, NULL))
263: evtimer_del(&mainstats.timer);
264: }
1.11 claudio 265:
1.20 claudio 266: static int
267: clock_gettime_tv(clockid_t clock_id, struct timeval *tv)
268: {
269: struct timespec ts;
270:
271: if (clock_gettime(clock_id, &ts) == -1)
272: return (-1);
273:
274: TIMESPEC_TO_TIMEVAL(tv, &ts);
275:
276: return (0);
1.11 claudio 277: }
278:
279: static void
1.20 claudio 280: print_tcp_header(void)
1.11 claudio 281: {
282: char **kv;
1.20 claudio 283:
1.11 claudio 284: printf("%12s %14s %12s %8s ", "elapsed_ms", "bytes", "mbps",
285: "bwidth");
1.20 claudio 286: for (kv = ptb->kvars; ptb->kvars != NULL && *kv != NULL; kv++)
287: printf("%s%s", kv != ptb->kvars ? "," : "", *kv);
1.11 claudio 288: printf("\n");
289: }
290:
291: static void
1.20 claudio 292: kget(u_long addr, void *buf, size_t size)
1.1 djm 293: {
1.20 claudio 294: if (kvm_read(ptb->kvmh, addr, buf, size) != (ssize_t)size)
295: errx(1, "kvm_read: %s", kvm_geterr(ptb->kvmh));
1.1 djm 296: }
297:
298: static u_long
1.20 claudio 299: kfind_tcb(int sock)
1.1 djm 300: {
301: struct inpcbtable tcbtab;
1.40 tedu 302: struct inpcb *next, *prev;
1.41 tedu 303: struct inpcb inpcb, prevpcb;
1.1 djm 304: struct tcpcb tcpcb;
305:
306: struct sockaddr_storage me, them;
307: socklen_t melen, themlen;
308: struct sockaddr_in *in4;
309: struct sockaddr_in6 *in6;
310: char tmp1[64], tmp2[64];
1.11 claudio 311: int nretry;
1.1 djm 312:
1.11 claudio 313: nretry = 10;
1.1 djm 314: melen = themlen = sizeof(struct sockaddr_storage);
315: if (getsockname(sock, (struct sockaddr *)&me, &melen) == -1)
316: err(1, "getsockname");
317: if (getpeername(sock, (struct sockaddr *)&them, &themlen) == -1)
318: err(1, "getpeername");
319: if (me.ss_family != them.ss_family)
320: errx(1, "%s: me.ss_family != them.ss_family", __func__);
321: if (me.ss_family != AF_INET && me.ss_family != AF_INET6)
322: errx(1, "%s: unknown socket family", __func__);
1.20 claudio 323: if (ptb->vflag >= 2) {
1.1 djm 324: saddr_ntop((struct sockaddr *)&me, me.ss_len,
325: tmp1, sizeof(tmp1));
326: saddr_ntop((struct sockaddr *)&them, them.ss_len,
327: tmp2, sizeof(tmp2));
328: fprintf(stderr, "Our socket local %s remote %s\n", tmp1, tmp2);
329: }
1.20 claudio 330: if (ptb->vflag >= 2)
331: fprintf(stderr, "Using PCB table at %lu\n", ptb->ktcbtab);
1.11 claudio 332: retry:
1.20 claudio 333: kget(ptb->ktcbtab, &tcbtab, sizeof(tcbtab));
1.40 tedu 334: prev = NULL;
1.39 krw 335: next = TAILQ_FIRST(&tcbtab.inpt_queue);
1.1 djm 336:
1.20 claudio 337: if (ptb->vflag >= 2)
1.40 tedu 338: fprintf(stderr, "PCB start at %p\n", next);
339: while (next != NULL) {
1.20 claudio 340: if (ptb->vflag >= 2)
1.1 djm 341: fprintf(stderr, "Checking PCB %p\n", next);
1.20 claudio 342: kget((u_long)next, &inpcb, sizeof(inpcb));
1.41 tedu 343: if (prev != NULL) {
344: kget((u_long)prev, &prevpcb, sizeof(prevpcb));
345: if (TAILQ_NEXT(&prevpcb, inp_queue) != next) {
346: if (nretry--) {
347: warnx("PCB prev pointer insane");
348: goto retry;
349: } else
350: errx(1, "PCB prev pointer insane,"
351: " all attempts exhaused");
352: }
353: }
1.1 djm 354: prev = next;
1.39 krw 355: next = TAILQ_NEXT(&inpcb, inp_queue);
1.1 djm 356:
357: if (me.ss_family == AF_INET) {
358: if ((inpcb.inp_flags & INP_IPV6) != 0) {
1.20 claudio 359: if (ptb->vflag >= 2)
1.1 djm 360: fprintf(stderr, "Skip: INP_IPV6");
361: continue;
362: }
1.20 claudio 363: if (ptb->vflag >= 2) {
1.1 djm 364: inet_ntop(AF_INET, &inpcb.inp_laddr,
365: tmp1, sizeof(tmp1));
366: inet_ntop(AF_INET, &inpcb.inp_faddr,
367: tmp2, sizeof(tmp2));
368: fprintf(stderr, "PCB %p local: [%s]:%d "
369: "remote: [%s]:%d\n", prev,
370: tmp1, inpcb.inp_lport,
371: tmp2, inpcb.inp_fport);
372: }
373: in4 = (struct sockaddr_in *)&me;
374: if (memcmp(&in4->sin_addr, &inpcb.inp_laddr,
375: sizeof(struct in_addr)) != 0 ||
376: in4->sin_port != inpcb.inp_lport)
377: continue;
378: in4 = (struct sockaddr_in *)&them;
379: if (memcmp(&in4->sin_addr, &inpcb.inp_faddr,
380: sizeof(struct in_addr)) != 0 ||
381: in4->sin_port != inpcb.inp_fport)
382: continue;
383: } else {
384: if ((inpcb.inp_flags & INP_IPV6) == 0)
385: continue;
1.20 claudio 386: if (ptb->vflag >= 2) {
1.1 djm 387: inet_ntop(AF_INET6, &inpcb.inp_laddr6,
388: tmp1, sizeof(tmp1));
389: inet_ntop(AF_INET6, &inpcb.inp_faddr6,
390: tmp2, sizeof(tmp2));
391: fprintf(stderr, "PCB %p local: [%s]:%d "
392: "remote: [%s]:%d\n", prev,
393: tmp1, inpcb.inp_lport,
394: tmp2, inpcb.inp_fport);
395: }
396: in6 = (struct sockaddr_in6 *)&me;
397: if (memcmp(&in6->sin6_addr, &inpcb.inp_laddr6,
398: sizeof(struct in6_addr)) != 0 ||
399: in6->sin6_port != inpcb.inp_lport)
400: continue;
401: in6 = (struct sockaddr_in6 *)&them;
402: if (memcmp(&in6->sin6_addr, &inpcb.inp_faddr6,
403: sizeof(struct in6_addr)) != 0 ||
404: in6->sin6_port != inpcb.inp_fport)
405: continue;
406: }
1.20 claudio 407: kget((u_long)inpcb.inp_ppcb, &tcpcb, sizeof(tcpcb));
1.1 djm 408: if (tcpcb.t_state != TCPS_ESTABLISHED) {
1.20 claudio 409: if (ptb->vflag >= 2)
1.1 djm 410: fprintf(stderr, "Not established\n");
411: continue;
412: }
1.20 claudio 413: if (ptb->vflag >= 2)
1.1 djm 414: fprintf(stderr, "Found PCB at %p\n", prev);
1.20 claudio 415: return ((u_long)prev);
1.1 djm 416: }
417:
418: errx(1, "No matching PCB found");
419: }
420:
421: static void
1.20 claudio 422: kupdate_stats(u_long tcbaddr, struct inpcb *inpcb,
423: struct tcpcb *tcpcb, struct socket *sockb)
1.1 djm 424: {
1.20 claudio 425: kget(tcbaddr, inpcb, sizeof(*inpcb));
426: kget((u_long)inpcb->inp_ppcb, tcpcb, sizeof(*tcpcb));
427: kget((u_long)inpcb->inp_socket, sockb, sizeof(*sockb));
1.1 djm 428: }
429:
430: static void
431: check_kvar(const char *var)
432: {
1.16 deraadt 433: u_int i;
1.1 djm 434:
435: for (i = 0; allowed_kvars[i] != NULL; i++)
436: if (strcmp(allowed_kvars[i], var) == 0)
437: return;
438: errx(1, "Unrecognised kvar: %s", var);
439: }
440:
441: static void
442: list_kvars(void)
443: {
1.16 deraadt 444: u_int i;
1.1 djm 445:
1.26 haesbaer 446: printf("Supported kernel variables:\n");
1.1 djm 447: for (i = 0; allowed_kvars[i] != NULL; i++)
1.26 haesbaer 448: printf("\t%s\n", allowed_kvars[i]);
1.1 djm 449: }
450:
451: static char **
452: check_prepare_kvars(char *list)
453: {
454: char *item, **ret = NULL;
1.16 deraadt 455: u_int n = 0;
1.1 djm 456:
457: while ((item = strsep(&list, ", \t\n")) != NULL) {
458: check_kvar(item);
1.43 lteo 459: if ((ret = reallocarray(ret, (++n + 1), sizeof(*ret))) == NULL)
460: errx(1, "reallocarray(kvars)");
1.1 djm 461: if ((ret[n - 1] = strdup(item)) == NULL)
462: errx(1, "strdup");
463: ret[n] = NULL;
464: }
1.20 claudio 465: return (ret);
1.1 djm 466: }
467:
468: static void
1.20 claudio 469: stats_prepare(struct statctx *sc)
1.1 djm 470: {
1.20 claudio 471: sc->buf = ptb->dummybuf;
472: sc->buflen = ptb->dummybuf_len;
473:
474: if (ptb->kvars)
475: sc->tcp_tcbaddr = kfind_tcb(sc->fd);
476: if (clock_gettime_tv(CLOCK_MONOTONIC, &sc->t_start) == -1)
477: err(1, "clock_gettime_tv");
1.1 djm 478: sc->t_last = sc->t_start;
479:
480: }
481:
482: static void
1.20 claudio 483: tcp_stats_display(unsigned long long total_elapsed, long double mbps,
1.11 claudio 484: float bwperc, struct statctx *sc, struct inpcb *inpcb,
485: struct tcpcb *tcpcb, struct socket *sockb)
486: {
487: int j;
488:
489: printf("%12llu %14llu %12.3Lf %7.2f%% ", total_elapsed, sc->bytes,
490: mbps, bwperc);
491:
1.20 claudio 492: if (ptb->kvars != NULL) {
493: kupdate_stats(sc->tcp_tcbaddr, inpcb, tcpcb,
1.11 claudio 494: sockb);
1.1 djm 495:
1.20 claudio 496: for (j = 0; ptb->kvars[j] != NULL; j++) {
1.11 claudio 497: #define S(a) #a
498: #define P(b, v, f) \
1.20 claudio 499: if (strcmp(ptb->kvars[j], S(b.v)) == 0) { \
1.11 claudio 500: printf("%s"f, j > 0 ? "," : "", b->v); \
501: continue; \
502: }
503: P(inpcb, inp_flags, "0x%08x")
504: P(sockb, so_rcv.sb_cc, "%lu")
1.26 haesbaer 505: P(sockb, so_rcv.sb_hiwat, "%lu")
1.19 claudio 506: P(sockb, so_rcv.sb_wat, "%lu")
1.11 claudio 507: P(sockb, so_snd.sb_cc, "%lu")
1.26 haesbaer 508: P(sockb, so_snd.sb_hiwat, "%lu")
1.19 claudio 509: P(sockb, so_snd.sb_wat, "%lu")
1.26 haesbaer 510: P(tcpcb, last_ack_sent, "%u")
511: P(tcpcb, max_sndwnd, "%lu")
512: P(tcpcb, rcv_adv, "%u")
513: P(tcpcb, rcv_nxt, "%u")
514: P(tcpcb, rcv_scale, "%u")
515: P(tcpcb, rcv_wnd, "%lu")
516: P(tcpcb, rfbuf_cnt, "%u")
517: P(tcpcb, rfbuf_ts, "%u")
518: P(tcpcb, snd_cwnd, "%lu")
519: P(tcpcb, snd_max, "%u")
520: P(tcpcb, snd_nxt, "%u")
521: P(tcpcb, snd_scale, "%u")
522: P(tcpcb, snd_ssthresh, "%lu")
1.11 claudio 523: P(tcpcb, snd_una, "%u")
524: P(tcpcb, snd_wl1, "%u")
525: P(tcpcb, snd_wl2, "%u")
526: P(tcpcb, snd_wnd, "%lu")
527: P(tcpcb, t_rcvtime, "%u")
1.26 haesbaer 528: P(tcpcb, t_rtseq, "%u")
529: P(tcpcb, t_rttmin, "%hu")
1.11 claudio 530: P(tcpcb, t_rtttime, "%u")
1.26 haesbaer 531: P(tcpcb, t_rttvar, "%hu")
1.11 claudio 532: P(tcpcb, t_srtt, "%hu")
1.26 haesbaer 533: P(tcpcb, ts_recent, "%u")
1.19 claudio 534: P(tcpcb, ts_recent_age, "%u")
1.11 claudio 535: #undef S
1.1 djm 536: #undef P
537: }
538: }
539: printf("\n");
540: }
541:
542: static void
1.20 claudio 543: tcp_process_slice(int fd, short event, void *bula)
1.1 djm 544: {
1.11 claudio 545: unsigned long long total_elapsed, since_last;
546: long double mbps, slice_mbps = 0;
547: float bwperc;
1.20 claudio 548: struct statctx *sc;
1.11 claudio 549: struct timeval t_cur, t_diff;
550: struct inpcb inpcb;
551: struct tcpcb tcpcb;
552: struct socket sockb;
553:
1.20 claudio 554: TAILQ_FOREACH(sc, &sc_queue, entry) {
555: if (clock_gettime_tv(CLOCK_MONOTONIC, &t_cur) == -1)
556: err(1, "clock_gettime_tv");
557: if (ptb->kvars != NULL) /* process kernel stats */
558: kupdate_stats(sc->tcp_tcbaddr, &inpcb, &tcpcb,
1.11 claudio 559: &sockb);
1.20 claudio 560:
1.11 claudio 561: timersub(&t_cur, &sc->t_start, &t_diff);
562: total_elapsed = t_diff.tv_sec * 1000 + t_diff.tv_usec / 1000;
563: timersub(&t_cur, &sc->t_last, &t_diff);
564: since_last = t_diff.tv_sec * 1000 + t_diff.tv_usec / 1000;
565: bwperc = (sc->bytes * 100.0) / mainstats.slice_bytes;
566: mbps = (sc->bytes * 8) / (since_last * 1000.0);
567: slice_mbps += mbps;
568:
1.20 claudio 569: tcp_stats_display(total_elapsed, mbps, bwperc, sc,
1.11 claudio 570: &inpcb, &tcpcb, &sockb);
571:
572: sc->t_last = t_cur;
573: sc->bytes = 0;
574: }
1.1 djm 575:
1.11 claudio 576: /* process stats for this slice */
577: if (slice_mbps > mainstats.peak_mbps)
578: mainstats.peak_mbps = slice_mbps;
1.20 claudio 579: printf("Conn: %3d Mbps: %12.3Lf Peak Mbps: %12.3Lf Avg Mbps: %12.3Lf\n",
580: mainstats.nconns, slice_mbps, mainstats.peak_mbps,
1.36 haesbaer 581: mainstats.nconns ? slice_mbps / mainstats.nconns : 0);
1.20 claudio 582: mainstats.slice_bytes = 0;
583:
584: set_slice_timer(mainstats.nconns > 0);
585: }
586:
587: static void
588: udp_process_slice(int fd, short event, void *v_sc)
589: {
590: struct statctx *sc = v_sc;
1.31 haesbaer 591: unsigned long long total_elapsed, since_last, pps;
592: long double slice_mbps;
1.20 claudio 593: struct timeval t_cur, t_diff;
594:
595: if (clock_gettime_tv(CLOCK_MONOTONIC, &t_cur) == -1)
596: err(1, "clock_gettime_tv");
597: /* Calculate pps */
598: timersub(&t_cur, &sc->t_start, &t_diff);
599: total_elapsed = t_diff.tv_sec * 1000 + t_diff.tv_usec / 1000;
600: timersub(&t_cur, &sc->t_last, &t_diff);
601: since_last = t_diff.tv_sec * 1000 + t_diff.tv_usec / 1000;
602: slice_mbps = (sc->bytes * 8) / (since_last * 1000.0);
603: pps = (sc->udp_slice_pkts * 1000) / since_last;
604: if (slice_mbps > mainstats.peak_mbps)
605: mainstats.peak_mbps = slice_mbps;
1.31 haesbaer 606: printf("Elapsed: %11llu Mbps: %11.3Lf Peak Mbps: %11.3Lf %s PPS: %7llu\n",
1.20 claudio 607: total_elapsed, slice_mbps, mainstats.peak_mbps,
608: ptb->sflag ? "Rx" : "Tx", pps);
609:
610: /* Clean up this slice time */
611: sc->t_last = t_cur;
612: sc->bytes = 0;
613: sc->udp_slice_pkts = 0;
614: set_slice_timer(1);
1.11 claudio 615: }
1.1 djm 616:
1.20 claudio 617: static void
618: udp_server_handle_sc(int fd, short event, void *v_sc)
1.11 claudio 619: {
620: ssize_t n;
1.20 claudio 621: struct statctx *sc = v_sc;
1.1 djm 622:
1.20 claudio 623: n = read(fd, ptb->dummybuf, ptb->dummybuf_len);
624: if (n == 0)
625: return;
626: else if (n == -1) {
1.34 haesbaer 627: if (errno != EINTR && errno != EWOULDBLOCK)
628: warn("fd %d read error", fd);
1.20 claudio 629: return;
630: }
1.11 claudio 631:
1.20 claudio 632: if (ptb->vflag >= 3)
633: fprintf(stderr, "read: %zd bytes\n", n);
634: /* If this was our first packet, start slice timer */
635: if (mainstats.peak_mbps == 0)
636: set_slice_timer(1);
637: /* Account packet */
638: sc->udp_slice_pkts++;
639: sc->bytes += n;
640: }
641:
642: static void
643: tcp_server_handle_sc(int fd, short event, void *v_sc)
644: {
645: struct statctx *sc = v_sc;
646: ssize_t n;
647:
648: n = read(sc->fd, sc->buf, sc->buflen);
649: if (n == -1) {
1.34 haesbaer 650: if (errno != EINTR && errno != EWOULDBLOCK)
651: warn("fd %d read error", sc->fd);
1.20 claudio 652: return;
653: } else if (n == 0) {
654: if (ptb->vflag)
655: fprintf(stderr, "%8d closed by remote end\n", sc->fd);
1.33 haesbaer 656:
657: TAILQ_REMOVE(&sc_queue, sc, entry);
658:
1.23 sthen 659: event_del(&sc->ev);
1.20 claudio 660: close(sc->fd);
1.33 haesbaer 661:
662: /* Some file descriptors are available again. */
663: if (evtimer_pending(&sc->tcp_ts->evt, NULL)) {
664: evtimer_del(&sc->tcp_ts->evt);
665: event_add(&sc->tcp_ts->ev, NULL);
666: }
667:
1.20 claudio 668: free(sc);
669: mainstats.nconns--;
670: return;
1.1 djm 671: }
1.20 claudio 672: if (ptb->vflag >= 3)
1.11 claudio 673: fprintf(stderr, "read: %zd bytes\n", n);
1.20 claudio 674: sc->bytes += n;
675: mainstats.slice_bytes += n;
676: }
1.11 claudio 677:
1.20 claudio 678: static void
1.33 haesbaer 679: tcp_server_accept(int fd, short event, void *arg)
1.20 claudio 680: {
1.33 haesbaer 681: struct tcpservsock *ts = arg;
1.49 chl 682: int sock;
1.20 claudio 683: struct statctx *sc;
684: struct sockaddr_storage ss;
685: socklen_t sslen;
686: char tmp[128];
687:
688: sslen = sizeof(ss);
1.33 haesbaer 689:
690: event_add(&ts->ev, NULL);
691: if (event & EV_TIMEOUT)
692: return;
1.48 guenther 693: if ((sock = accept4(fd, (struct sockaddr *)&ss, &sslen, SOCK_NONBLOCK))
694: == -1) {
1.33 haesbaer 695: /*
696: * Pause accept if we are out of file descriptors, or
697: * libevent will haunt us here too.
698: */
699: if (errno == ENFILE || errno == EMFILE) {
700: struct timeval evtpause = { 1, 0 };
701:
702: event_del(&ts->ev);
703: evtimer_add(&ts->evt, &evtpause);
1.38 deraadt 704: } else if (errno != EWOULDBLOCK && errno != EINTR &&
705: errno != ECONNABORTED)
1.33 haesbaer 706: warn("accept");
1.20 claudio 707: return;
708: }
709: saddr_ntop((struct sockaddr *)&ss, sslen,
710: tmp, sizeof(tmp));
1.24 haesbaer 711: if (ptb->Tflag != -1 && ss.ss_family == AF_INET) {
712: if (setsockopt(sock, IPPROTO_IP, IP_TOS,
713: &ptb->Tflag, sizeof(ptb->Tflag)))
714: err(1, "setsockopt IP_TOS");
715: }
716: if (ptb->Tflag != -1 && ss.ss_family == AF_INET6) {
717: if (setsockopt(sock, IPPROTO_IPV6, IPV6_TCLASS,
718: &ptb->Tflag, sizeof(ptb->Tflag)))
719: err(1, "setsockopt IPV6_TCLASS");
720: }
1.20 claudio 721: /* Alloc client structure and register reading callback */
722: if ((sc = calloc(1, sizeof(*sc))) == NULL)
723: err(1, "calloc");
1.33 haesbaer 724: sc->tcp_ts = ts;
1.20 claudio 725: sc->fd = sock;
726: stats_prepare(sc);
727: event_set(&sc->ev, sc->fd, EV_READ | EV_PERSIST,
728: tcp_server_handle_sc, sc);
729: event_add(&sc->ev, NULL);
730: TAILQ_INSERT_TAIL(&sc_queue, sc, entry);
731: mainstats.nconns++;
1.36 haesbaer 732: if (mainstats.nconns == 1)
733: set_slice_timer(1);
1.20 claudio 734: if (ptb->vflag)
1.28 haesbaer 735: fprintf(stderr, "Accepted connection from %s, fd = %d\n",
736: tmp, sc->fd);
1.1 djm 737: }
738:
1.20 claudio 739: static void
740: server_init(struct addrinfo *aitop, struct statctx *udp_sc)
1.1 djm 741: {
742: char tmp[128];
1.11 claudio 743: int sock, on = 1;
1.1 djm 744: struct addrinfo *ai;
1.20 claudio 745: struct event *ev;
1.33 haesbaer 746: struct tcpservsock *ts;
1.11 claudio 747: nfds_t lnfds;
1.1 djm 748:
1.11 claudio 749: lnfds = 0;
1.1 djm 750: for (ai = aitop; ai != NULL; ai = ai->ai_next) {
751: saddr_ntop(ai->ai_addr, ai->ai_addrlen, tmp, sizeof(tmp));
1.20 claudio 752: if (ptb->vflag)
753: fprintf(stderr, "Try to bind to %s\n", tmp);
1.1 djm 754: if ((sock = socket(ai->ai_family, ai->ai_socktype,
755: ai->ai_protocol)) == -1) {
756: if (ai->ai_next == NULL)
757: err(1, "socket");
1.20 claudio 758: if (ptb->vflag)
1.1 djm 759: warn("socket");
760: continue;
761: }
1.24 haesbaer 762: if (ptb->Tflag != -1 && ai->ai_family == AF_INET) {
763: if (setsockopt(sock, IPPROTO_IP, IP_TOS,
764: &ptb->Tflag, sizeof(ptb->Tflag)))
765: err(1, "setsockopt IP_TOS");
766: }
767: if (ptb->Tflag != -1 && ai->ai_family == AF_INET6) {
768: if (setsockopt(sock, IPPROTO_IPV6, IPV6_TCLASS,
769: &ptb->Tflag, sizeof(ptb->Tflag)))
770: err(1, "setsockopt IPV6_TCLASS");
771: }
1.1 djm 772: if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
773: &on, sizeof(on)) == -1)
774: warn("reuse port");
775: if (bind(sock, ai->ai_addr, ai->ai_addrlen) != 0) {
776: if (ai->ai_next == NULL)
777: err(1, "bind");
1.20 claudio 778: if (ptb->vflag)
1.1 djm 779: warn("bind");
780: close(sock);
781: continue;
782: }
1.20 claudio 783: if (ptb->Sflag) {
1.1 djm 784: if (setsockopt(sock, SOL_SOCKET, SO_RCVBUF,
1.20 claudio 785: &ptb->Sflag, sizeof(ptb->Sflag)) == -1)
786: warn("set receive buffer size");
1.1 djm 787: }
1.20 claudio 788: if (TCP_MODE) {
789: if (listen(sock, 64) == -1) {
790: if (ai->ai_next == NULL)
791: err(1, "listen");
792: if (ptb->vflag)
793: warn("listen");
794: close(sock);
795: continue;
796: }
1.1 djm 797: }
1.33 haesbaer 798: if (UDP_MODE) {
799: if ((ev = calloc(1, sizeof(*ev))) == NULL)
800: err(1, "calloc");
1.20 claudio 801: event_set(ev, sock, EV_READ | EV_PERSIST,
802: udp_server_handle_sc, udp_sc);
1.33 haesbaer 803: event_add(ev, NULL);
804: } else {
805: if ((ts = calloc(1, sizeof(*ts))) == NULL)
806: err(1, "calloc");
807:
808: ts->fd = sock;
809: evtimer_set(&ts->evt, tcp_server_accept, ts);
810: event_set(&ts->ev, ts->fd, EV_READ,
811: tcp_server_accept, ts);
812: event_add(&ts->ev, NULL);
813: }
1.20 claudio 814: if (ptb->vflag >= 3)
815: fprintf(stderr, "bound to fd %d\n", sock);
1.11 claudio 816: lnfds++;
1.1 djm 817: }
1.51 claudio 818: if (!ptb->Uflag)
819: freeaddrinfo(aitop);
1.11 claudio 820: if (lnfds == 0)
1.1 djm 821: errx(1, "No working listen addresses found");
1.11 claudio 822: }
823:
824: static void
1.20 claudio 825: client_handle_sc(int fd, short event, void *v_sc)
826: {
827: struct statctx *sc = v_sc;
828: ssize_t n;
1.51 claudio 829: size_t blen = sc->buflen;
1.1 djm 830:
1.51 claudio 831: if (ptb->Rflag)
832: blen = arc4random_uniform(blen) + 1;
833: if ((n = write(sc->fd, sc->buf, blen)) == -1) {
1.34 haesbaer 834: if (errno == EINTR || errno == EWOULDBLOCK ||
1.20 claudio 835: (UDP_MODE && errno == ENOBUFS))
1.34 haesbaer 836: return;
1.20 claudio 837: err(1, "write");
1.11 claudio 838: }
1.20 claudio 839: if (TCP_MODE && n == 0) {
1.28 haesbaer 840: fprintf(stderr, "Remote end closed connection");
1.20 claudio 841: exit(1);
1.1 djm 842: }
1.20 claudio 843: if (ptb->vflag >= 3)
1.28 haesbaer 844: fprintf(stderr, "write: %zd bytes\n", n);
1.20 claudio 845: sc->bytes += n;
846: mainstats.slice_bytes += n;
847: if (UDP_MODE)
848: sc->udp_slice_pkts++;
1.1 djm 849: }
850:
1.20 claudio 851: static void
1.25 haesbaer 852: client_init(struct addrinfo *aitop, int nconn, struct statctx *udp_sc,
853: struct addrinfo *aib)
1.1 djm 854: {
1.20 claudio 855: struct statctx *sc;
856: struct addrinfo *ai;
1.14 claudio 857: char tmp[128];
858: int i, r, sock;
1.1 djm 859:
1.20 claudio 860: sc = udp_sc;
1.4 henning 861: for (i = 0; i < nconn; i++) {
862: for (sock = -1, ai = aitop; ai != NULL; ai = ai->ai_next) {
863: saddr_ntop(ai->ai_addr, ai->ai_addrlen, tmp,
864: sizeof(tmp));
1.20 claudio 865: if (ptb->vflag && i == 0)
1.4 henning 866: fprintf(stderr, "Trying %s\n", tmp);
867: if ((sock = socket(ai->ai_family, ai->ai_socktype,
868: ai->ai_protocol)) == -1) {
869: if (ai->ai_next == NULL)
870: err(1, "socket");
1.20 claudio 871: if (ptb->vflag)
1.4 henning 872: warn("socket");
873: continue;
874: }
1.25 haesbaer 875: if (aib != NULL) {
876: saddr_ntop(aib->ai_addr, aib->ai_addrlen,
877: tmp, sizeof(tmp));
878: if (ptb->vflag)
879: fprintf(stderr,
880: "Try to bind to %s\n", tmp);
881: if (bind(sock, (struct sockaddr *)aib->ai_addr,
882: aib->ai_addrlen) == -1)
883: err(1, "bind");
884: }
1.24 haesbaer 885: if (ptb->Tflag != -1 && ai->ai_family == AF_INET) {
886: if (setsockopt(sock, IPPROTO_IP, IP_TOS,
887: &ptb->Tflag, sizeof(ptb->Tflag)))
888: err(1, "setsockopt IP_TOS");
889: }
890: if (ptb->Tflag != -1 && ai->ai_family == AF_INET6) {
891: if (setsockopt(sock, IPPROTO_IPV6, IPV6_TCLASS,
892: &ptb->Tflag, sizeof(ptb->Tflag)))
893: err(1, "setsockopt IPV6_TCLASS");
894: }
1.20 claudio 895: if (ptb->Sflag) {
1.4 henning 896: if (setsockopt(sock, SOL_SOCKET, SO_SNDBUF,
1.20 claudio 897: &ptb->Sflag, sizeof(ptb->Sflag)) == -1)
1.4 henning 898: warn("set TCP send buffer size");
899: }
900: if (connect(sock, ai->ai_addr, ai->ai_addrlen) != 0) {
901: if (ai->ai_next == NULL)
902: err(1, "connect");
1.20 claudio 903: if (ptb->vflag)
1.4 henning 904: warn("connect");
905: close(sock);
906: sock = -1;
907: continue;
908: }
909: break;
1.1 djm 910: }
1.4 henning 911: if (sock == -1)
912: errx(1, "No host found");
1.50 krw 913: if ((r = fcntl(sock, F_GETFL)) == -1)
1.4 henning 914: err(1, "fcntl(F_GETFL)");
915: r |= O_NONBLOCK;
916: if (fcntl(sock, F_SETFL, r) == -1)
917: err(1, "fcntl(F_SETFL, O_NONBLOCK)");
1.20 claudio 918: /* Alloc and prepare stats */
919: if (TCP_MODE) {
920: if ((sc = calloc(1, sizeof(*sc))) == NULL)
921: err(1, "calloc");
922: }
923: sc->fd = sock;
924: stats_prepare(sc);
925: event_set(&sc->ev, sc->fd, EV_WRITE | EV_PERSIST,
926: client_handle_sc, sc);
927: event_add(&sc->ev, NULL);
928: TAILQ_INSERT_TAIL(&sc_queue, sc, entry);
929: mainstats.nconns++;
1.36 haesbaer 930: if (mainstats.nconns == 1)
931: set_slice_timer(1);
1.14 claudio 932: }
1.51 claudio 933: if (!ptb->Uflag)
934: freeaddrinfo(aitop);
1.35 haesbaer 935: if (aib != NULL)
936: freeaddrinfo(aib);
1.14 claudio 937:
1.20 claudio 938: if (ptb->vflag && nconn > 1)
1.29 haesbaer 939: fprintf(stderr, "%d connections established\n",
940: mainstats.nconns);
1.14 claudio 941: }
942:
1.24 haesbaer 943: static int
944: map_tos(char *s, int *val)
945: {
946: /* DiffServ Codepoints and other TOS mappings */
947: const struct toskeywords {
948: const char *keyword;
949: int val;
950: } *t, toskeywords[] = {
951: { "af11", IPTOS_DSCP_AF11 },
952: { "af12", IPTOS_DSCP_AF12 },
953: { "af13", IPTOS_DSCP_AF13 },
954: { "af21", IPTOS_DSCP_AF21 },
955: { "af22", IPTOS_DSCP_AF22 },
956: { "af23", IPTOS_DSCP_AF23 },
957: { "af31", IPTOS_DSCP_AF31 },
958: { "af32", IPTOS_DSCP_AF32 },
959: { "af33", IPTOS_DSCP_AF33 },
960: { "af41", IPTOS_DSCP_AF41 },
961: { "af42", IPTOS_DSCP_AF42 },
962: { "af43", IPTOS_DSCP_AF43 },
963: { "critical", IPTOS_PREC_CRITIC_ECP },
964: { "cs0", IPTOS_DSCP_CS0 },
965: { "cs1", IPTOS_DSCP_CS1 },
966: { "cs2", IPTOS_DSCP_CS2 },
967: { "cs3", IPTOS_DSCP_CS3 },
968: { "cs4", IPTOS_DSCP_CS4 },
969: { "cs5", IPTOS_DSCP_CS5 },
970: { "cs6", IPTOS_DSCP_CS6 },
971: { "cs7", IPTOS_DSCP_CS7 },
972: { "ef", IPTOS_DSCP_EF },
973: { "inetcontrol", IPTOS_PREC_INTERNETCONTROL },
974: { "lowdelay", IPTOS_LOWDELAY },
975: { "netcontrol", IPTOS_PREC_NETCONTROL },
976: { "reliability", IPTOS_RELIABILITY },
977: { "throughput", IPTOS_THROUGHPUT },
978: { NULL, -1 },
979: };
980:
981: for (t = toskeywords; t->keyword != NULL; t++) {
982: if (strcmp(s, t->keyword) == 0) {
983: *val = t->val;
984: return (1);
985: }
986: }
987:
988: return (0);
989: }
990:
1.30 henning 991: static void
992: quit(int sig, short event, void *arg)
993: {
994: exit(0);
995: }
996:
1.1 djm 997: int
998: main(int argc, char **argv)
999: {
1.30 henning 1000: struct timeval tv;
1.37 haesbaer 1001: unsigned int secs, rtable;
1.1 djm 1002:
1003: char kerr[_POSIX2_LINE_MAX], *tmp;
1.25 haesbaer 1004: struct addrinfo *aitop, *aib, hints;
1.1 djm 1005: const char *errstr;
1.11 claudio 1006: struct rlimit rl;
1.20 claudio 1007: int ch, herr, nconn;
1.42 dlg 1008: int family = PF_UNSPEC;
1.12 deraadt 1009: struct nlist nl[] = { { "_tcbtable" }, { "" } };
1.25 haesbaer 1010: const char *host = NULL, *port = DEFAULT_PORT, *srcbind = NULL;
1.30 henning 1011: struct event ev_sigint, ev_sigterm, ev_sighup, ev_progtimer;
1.20 claudio 1012: struct statctx *udp_sc = NULL;
1.51 claudio 1013: struct sockaddr_un sock_un;
1.1 djm 1014:
1.20 claudio 1015: /* Init world */
1.45 millert 1016: setvbuf(stdout, NULL, _IOLBF, 0);
1.20 claudio 1017: ptb = &tcpbench;
1018: ptb->dummybuf_len = 0;
1.51 claudio 1019: ptb->Sflag = ptb->sflag = ptb->vflag = ptb->Rflag = ptb->Uflag = 0;
1.20 claudio 1020: ptb->kvmh = NULL;
1021: ptb->kvars = NULL;
1022: ptb->rflag = DEFAULT_STATS_INTERVAL;
1.24 haesbaer 1023: ptb->Tflag = -1;
1.20 claudio 1024: nconn = 1;
1.25 haesbaer 1025: aib = NULL;
1.30 henning 1026: secs = 0;
1.1 djm 1027:
1.51 claudio 1028: while ((ch = getopt(argc, argv, "46b:B:hlk:n:p:Rr:sS:t:T:uUvV:")) != -1) {
1.1 djm 1029: switch (ch) {
1.42 dlg 1030: case '4':
1031: family = PF_INET;
1032: break;
1033: case '6':
1034: family = PF_INET6;
1035: break;
1.25 haesbaer 1036: case 'b':
1037: srcbind = optarg;
1038: break;
1.1 djm 1039: case 'l':
1040: list_kvars();
1041: exit(0);
1042: case 'k':
1043: if ((tmp = strdup(optarg)) == NULL)
1.53 ! benno 1044: err(1, "strdup");
1.20 claudio 1045: ptb->kvars = check_prepare_kvars(tmp);
1.1 djm 1046: free(tmp);
1047: break;
1.51 claudio 1048: case 'R':
1049: ptb->Rflag = 1;
1050: break;
1.1 djm 1051: case 'r':
1.20 claudio 1052: ptb->rflag = strtonum(optarg, 0, 60 * 60 * 24 * 1000,
1.1 djm 1053: &errstr);
1054: if (errstr != NULL)
1055: errx(1, "statistics interval is %s: %s",
1056: errstr, optarg);
1057: break;
1058: case 'p':
1059: port = optarg;
1060: break;
1061: case 's':
1.20 claudio 1062: ptb->sflag = 1;
1.1 djm 1063: break;
1064: case 'S':
1.20 claudio 1065: ptb->Sflag = strtonum(optarg, 0, 1024*1024*1024,
1.1 djm 1066: &errstr);
1067: if (errstr != NULL)
1068: errx(1, "receive space interval is %s: %s",
1069: errstr, optarg);
1070: break;
1071: case 'B':
1.20 claudio 1072: ptb->dummybuf_len = strtonum(optarg, 0, 1024*1024*1024,
1.1 djm 1073: &errstr);
1074: if (errstr != NULL)
1075: errx(1, "read/write buffer size is %s: %s",
1076: errstr, optarg);
1077: break;
1078: case 'v':
1.20 claudio 1079: ptb->vflag++;
1.9 claudio 1080: break;
1081: case 'V':
1.37 haesbaer 1082: rtable = (unsigned int)strtonum(optarg, 0,
1.9 claudio 1083: RT_TABLEID_MAX, &errstr);
1084: if (errstr)
1.17 guenther 1085: errx(1, "rtable value is %s: %s",
1.9 claudio 1086: errstr, optarg);
1.37 haesbaer 1087: if (setrtable(rtable) == -1)
1088: err(1, "setrtable");
1.1 djm 1089: break;
1.4 henning 1090: case 'n':
1091: nconn = strtonum(optarg, 0, 65535, &errstr);
1092: if (errstr != NULL)
1093: errx(1, "number of connections is %s: %s",
1094: errstr, optarg);
1095: break;
1.20 claudio 1096: case 'u':
1097: ptb->uflag = 1;
1.24 haesbaer 1098: break;
1.51 claudio 1099: case 'U':
1100: ptb->Uflag = 1;
1101: break;
1.24 haesbaer 1102: case 'T':
1103: if (map_tos(optarg, &ptb->Tflag))
1104: break;
1105: errstr = NULL;
1106: if (strlen(optarg) > 1 && optarg[0] == '0' &&
1107: optarg[1] == 'x')
1108: ptb->Tflag = (int)strtol(optarg, NULL, 16);
1109: else
1110: ptb->Tflag = (int)strtonum(optarg, 0, 255,
1111: &errstr);
1112: if (ptb->Tflag == -1 || ptb->Tflag > 255 || errstr)
1113: errx(1, "illegal tos value %s", optarg);
1.20 claudio 1114: break;
1.30 henning 1115: case 't':
1116: secs = strtonum(optarg, 1, UINT_MAX, &errstr);
1117: if (errstr != NULL)
1118: errx(1, "secs is %s: %s",
1119: errstr, optarg);
1120: break;
1.1 djm 1121: case 'h':
1122: default:
1123: usage();
1124: }
1125: }
1126:
1.51 claudio 1127: if (pledge("stdio rpath dns inet unix id proc", NULL) == -1)
1.47 benno 1128: err(1, "pledge");
1129:
1.1 djm 1130: argv += optind;
1131: argc -= optind;
1.51 claudio 1132: if ((argc != (ptb->sflag && !ptb->Uflag ? 0 : 1)) ||
1.20 claudio 1133: (UDP_MODE && (ptb->kvars || nconn != 1)))
1.1 djm 1134: usage();
1.4 henning 1135:
1.46 deraadt 1136: if (ptb->kvars) {
1137: if ((ptb->kvmh = kvm_openfiles(NULL, NULL, NULL,
1138: O_RDONLY, kerr)) == NULL)
1139: errx(1, "kvm_open: %s", kerr);
1140: drop_gid();
1141: if (kvm_nlist(ptb->kvmh, nl) < 0 || nl[0].n_type == 0)
1142: errx(1, "kvm: no namelist");
1143: ptb->ktcbtab = nl[0].n_value;
1144: } else
1145: drop_gid();
1146:
1.51 claudio 1147: if (pledge("stdio id dns inet unix", NULL) == -1)
1.47 benno 1148: err(1, "pledge");
1149:
1.51 claudio 1150: if (!ptb->sflag || ptb->Uflag)
1.1 djm 1151: host = argv[0];
1.20 claudio 1152: /*
1153: * Rationale,
1154: * If TCP, use a big buffer with big reads/writes.
1155: * If UDP, use a big buffer in server and a buffer the size of a
1156: * ethernet packet.
1157: */
1158: if (!ptb->dummybuf_len) {
1159: if (ptb->sflag || TCP_MODE)
1160: ptb->dummybuf_len = DEFAULT_BUF;
1161: else
1162: ptb->dummybuf_len = DEFAULT_UDP_PKT;
1163: }
1.1 djm 1164:
1.13 claudio 1165: bzero(&hints, sizeof(hints));
1.42 dlg 1166: hints.ai_family = family;
1.25 haesbaer 1167: if (UDP_MODE) {
1.20 claudio 1168: hints.ai_socktype = SOCK_DGRAM;
1.25 haesbaer 1169: hints.ai_protocol = IPPROTO_UDP;
1.27 haesbaer 1170: } else {
1.20 claudio 1171: hints.ai_socktype = SOCK_STREAM;
1.25 haesbaer 1172: hints.ai_protocol = IPPROTO_TCP;
1173: }
1.51 claudio 1174: if (ptb->Uflag) {
1175: hints.ai_family = AF_UNIX;
1176: hints.ai_protocol = 0;
1177: sock_un.sun_family = AF_UNIX;
1178: if (strlcpy(sock_un.sun_path, host, sizeof(sock_un.sun_path)) >=
1179: sizeof(sock_un.sun_path))
1180: errx(1, "socket name '%s' too long", host);
1181: hints.ai_addr = (struct sockaddr *)&sock_un;
1182: hints.ai_addrlen = sizeof(sock_un);
1183: aitop = &hints;
1184: } else {
1185: if (ptb->sflag)
1186: hints.ai_flags = AI_PASSIVE;
1187: if (srcbind != NULL) {
1188: hints.ai_flags |= AI_NUMERICHOST;
1189: herr = getaddrinfo(srcbind, NULL, &hints, &aib);
1190: hints.ai_flags &= ~AI_NUMERICHOST;
1191: if (herr != 0) {
1192: if (herr == EAI_SYSTEM)
1193: err(1, "getaddrinfo");
1194: else
1195: errx(1, "getaddrinfo: %s",
1196: gai_strerror(herr));
1197: }
1198: }
1199: if ((herr = getaddrinfo(host, port, &hints, &aitop)) != 0) {
1.25 haesbaer 1200: if (herr == EAI_SYSTEM)
1201: err(1, "getaddrinfo");
1202: else
1203: errx(1, "getaddrinfo: %s", gai_strerror(herr));
1204: }
1205: }
1.1 djm 1206:
1.51 claudio 1207: if (pledge("stdio id inet unix", NULL) == -1)
1.47 benno 1208: err(1, "pledge");
1209:
1.11 claudio 1210: if (getrlimit(RLIMIT_NOFILE, &rl) == -1)
1211: err(1, "getrlimit");
1212: if (rl.rlim_cur < MAX_FD)
1213: rl.rlim_cur = MAX_FD;
1214: if (setrlimit(RLIMIT_NOFILE, &rl))
1215: err(1, "setrlimit");
1216: if (getrlimit(RLIMIT_NOFILE, &rl) == -1)
1217: err(1, "getrlimit");
1.47 benno 1218:
1.51 claudio 1219: if (pledge("stdio inet unix", NULL) == -1)
1.47 benno 1220: err(1, "pledge");
1221:
1.20 claudio 1222: /* Init world */
1223: TAILQ_INIT(&sc_queue);
1224: if ((ptb->dummybuf = malloc(ptb->dummybuf_len)) == NULL)
1225: err(1, "malloc");
1226: arc4random_buf(ptb->dummybuf, ptb->dummybuf_len);
1227:
1228: /* Setup libevent and signals */
1229: event_init();
1230: signal_set(&ev_sigterm, SIGTERM, signal_handler, NULL);
1231: signal_set(&ev_sighup, SIGHUP, signal_handler, NULL);
1232: signal_set(&ev_sigint, SIGINT, signal_handler, NULL);
1233: signal_add(&ev_sigint, NULL);
1234: signal_add(&ev_sigterm, NULL);
1235: signal_add(&ev_sighup, NULL);
1236: signal(SIGPIPE, SIG_IGN);
1237:
1.27 haesbaer 1238: if (UDP_MODE) {
1239: if ((udp_sc = calloc(1, sizeof(*udp_sc))) == NULL)
1240: err(1, "calloc");
1241: udp_sc->fd = -1;
1242: stats_prepare(udp_sc);
1243: evtimer_set(&mainstats.timer, udp_process_slice, udp_sc);
1244: } else {
1.20 claudio 1245: print_tcp_header();
1246: evtimer_set(&mainstats.timer, tcp_process_slice, NULL);
1.27 haesbaer 1247: }
1.20 claudio 1248:
1.27 haesbaer 1249: if (ptb->sflag)
1.20 claudio 1250: server_init(aitop, udp_sc);
1.30 henning 1251: else {
1252: if (secs > 0) {
1253: timerclear(&tv);
1254: tv.tv_sec = secs + 1;
1255: evtimer_set(&ev_progtimer, quit, NULL);
1256: evtimer_add(&ev_progtimer, &tv);
1257: }
1.25 haesbaer 1258: client_init(aitop, nconn, udp_sc, aib);
1.47 benno 1259:
1260: if (pledge("stdio", NULL) == -1)
1261: err(1, "pledge");
1.30 henning 1262: }
1.47 benno 1263:
1.20 claudio 1264: /* libevent main loop*/
1265: event_dispatch();
1.1 djm 1266:
1.20 claudio 1267: return (0);
1.1 djm 1268: }
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