Annotation of src/usr.bin/tcpbench/tcpbench.c, Revision 1.49
1.1 djm 1: /*
2: * Copyright (c) 2008 Damien Miller <djm@mindrot.org>
1.20 claudio 3: * Copyright (c) 2011 Christiano F. Haesbaert <haesbaert@haesbaert.org>
1.1 djm 4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
8: *
9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16: */
17:
18: #include <sys/types.h>
19: #include <sys/time.h>
20: #include <sys/socket.h>
21: #include <sys/socketvar.h>
1.11 claudio 22: #include <sys/resource.h>
1.20 claudio 23: #include <sys/queue.h>
1.1 djm 24:
25: #include <net/route.h>
26:
27: #include <netinet/in.h>
28: #include <netinet/ip.h>
29: #include <netinet/tcp.h>
30: #include <netinet/tcp_timer.h>
31: #include <netinet/tcp_fsm.h>
32: #include <netinet/in_pcb.h>
33: #include <netinet/tcp_var.h>
34:
35: #include <arpa/inet.h>
36:
37: #include <unistd.h>
38: #include <limits.h>
39: #include <stdlib.h>
40: #include <stdio.h>
41: #include <string.h>
42: #include <errno.h>
1.20 claudio 43: #include <event.h>
1.1 djm 44: #include <netdb.h>
45: #include <signal.h>
46: #include <err.h>
47: #include <fcntl.h>
48: #include <poll.h>
49:
50: #include <kvm.h>
51: #include <nlist.h>
52:
1.11 claudio 53: #define DEFAULT_PORT "12345"
54: #define DEFAULT_STATS_INTERVAL 1000 /* ms */
1.20 claudio 55: #define DEFAULT_BUF (256 * 1024)
56: #define DEFAULT_UDP_PKT (1500 - 28) /* TODO don't hardcode this */
57: #define TCP_MODE !ptb->uflag
58: #define UDP_MODE ptb->uflag
1.11 claudio 59: #define MAX_FD 1024
1.1 djm 60:
1.20 claudio 61: /* Our tcpbench globals */
62: struct {
63: int Sflag; /* Socket buffer size (tcp mode) */
64: u_int rflag; /* Report rate (ms) */
65: int sflag; /* True if server */
1.24 haesbaer 66: int Tflag; /* ToS if != -1 */
1.20 claudio 67: int vflag; /* Verbose */
68: int uflag; /* UDP mode */
69: kvm_t *kvmh; /* Kvm handler */
70: char **kvars; /* Kvm enabled vars */
71: u_long ktcbtab; /* Ktcb */
72: char *dummybuf; /* IO buffer */
73: size_t dummybuf_len; /* IO buffer len */
74: } tcpbench, *ptb;
1.1 djm 75:
1.33 haesbaer 76: struct tcpservsock {
77: struct event ev;
78: struct event evt;
79: int fd;
80: };
81:
1.20 claudio 82: /* stats for a single tcp connection, udp uses only one */
1.1 djm 83: struct statctx {
1.20 claudio 84: TAILQ_ENTRY(statctx) entry;
1.11 claudio 85: struct timeval t_start, t_last;
1.1 djm 86: unsigned long long bytes;
1.20 claudio 87: int fd;
88: char *buf;
89: size_t buflen;
90: struct event ev;
91: /* TCP only */
1.33 haesbaer 92: struct tcpservsock *tcp_ts;
1.20 claudio 93: u_long tcp_tcbaddr;
94: /* UDP only */
95: u_long udp_slice_pkts;
1.1 djm 96: };
97:
1.20 claudio 98: static void signal_handler(int, short, void *);
99: static void saddr_ntop(const struct sockaddr *, socklen_t, char *, size_t);
100: static void drop_gid(void);
101: static void set_slice_timer(int);
102: static void print_tcp_header(void);
103: static void kget(u_long, void *, size_t);
104: static u_long kfind_tcb(int);
105: static void kupdate_stats(u_long, struct inpcb *, struct tcpcb *,
106: struct socket *);
107: static void list_kvars(void);
108: static void check_kvar(const char *);
109: static char ** check_prepare_kvars(char *);
110: static void stats_prepare(struct statctx *);
111: static void tcp_stats_display(unsigned long long, long double, float,
112: struct statctx *, struct inpcb *, struct tcpcb *, struct socket *);
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 *);
116: static void server_init(struct addrinfo *, struct statctx *);
117: static void client_handle_sc(int, short, void *);
1.25 haesbaer 118: static void client_init(struct addrinfo *, int, struct statctx *,
119: struct addrinfo *);
1.20 claudio 120: static int clock_gettime_tv(clockid_t, struct timeval *);
121: static void udp_server_handle_sc(int, short, void *);
122: static void udp_process_slice(int, short, void *);
1.24 haesbaer 123: static int map_tos(char *, int *);
1.11 claudio 124: /*
125: * We account the mainstats here, that is the stats
126: * for all connections, all variables starting with slice
127: * are used to account information for the timeslice
128: * between each output. Peak variables record the highest
129: * between all slices so far.
130: */
131: static struct {
132: unsigned long long slice_bytes; /* bytes for last slice */
133: long double peak_mbps; /* peak mbps so far */
134: int nconns; /* connected clients */
1.20 claudio 135: struct event timer; /* process timer */
1.11 claudio 136: } mainstats;
137:
1.20 claudio 138: /* When adding variables, also add to tcp_stats_display() */
1.1 djm 139: static const char *allowed_kvars[] = {
140: "inpcb.inp_flags",
141: "sockb.so_rcv.sb_cc",
1.26 haesbaer 142: "sockb.so_rcv.sb_hiwat",
1.19 claudio 143: "sockb.so_rcv.sb_wat",
1.1 djm 144: "sockb.so_snd.sb_cc",
1.26 haesbaer 145: "sockb.so_snd.sb_hiwat",
1.19 claudio 146: "sockb.so_snd.sb_wat",
1.26 haesbaer 147: "tcpcb.last_ack_sent",
148: "tcpcb.max_sndwnd",
149: "tcpcb.rcv_adv",
150: "tcpcb.rcv_nxt",
151: "tcpcb.rcv_scale",
152: "tcpcb.rcv_wnd",
153: "tcpcb.rfbuf_cnt",
154: "tcpcb.rfbuf_ts",
155: "tcpcb.snd_cwnd",
156: "tcpcb.snd_max",
157: "tcpcb.snd_nxt",
158: "tcpcb.snd_scale",
159: "tcpcb.snd_ssthresh",
1.1 djm 160: "tcpcb.snd_una",
161: "tcpcb.snd_wl1",
162: "tcpcb.snd_wl2",
163: "tcpcb.snd_wnd",
164: "tcpcb.t_rcvtime",
1.26 haesbaer 165: "tcpcb.t_rtseq",
166: "tcpcb.t_rttmin",
1.1 djm 167: "tcpcb.t_rtttime",
1.26 haesbaer 168: "tcpcb.t_rttvar",
1.1 djm 169: "tcpcb.t_srtt",
1.26 haesbaer 170: "tcpcb.ts_recent",
1.19 claudio 171: "tcpcb.ts_recent_age",
1.1 djm 172: NULL
173: };
174:
1.20 claudio 175: TAILQ_HEAD(, statctx) sc_queue;
1.1 djm 176:
177: static void __dead
178: usage(void)
179: {
180: fprintf(stderr,
1.6 jmc 181: "usage: tcpbench -l\n"
1.42 dlg 182: " tcpbench [-46uv] [-B buf] [-b addr] [-k kvars] [-n connections]\n"
1.25 haesbaer 183: " [-p port] [-r interval] [-S space] [-T toskeyword]\n"
1.30 henning 184: " [-t secs] [-V rtable] hostname\n"
1.42 dlg 185: " tcpbench -s [-46uv] [-B buf] [-k kvars] [-p port]\n"
1.24 haesbaer 186: " [-r interval] [-S space] [-T toskeyword] [-V rtable]\n");
1.1 djm 187: exit(1);
188: }
189:
190: static void
1.20 claudio 191: signal_handler(int sig, short event, void *bula)
192: {
193: /*
194: * signal handler rules don't apply, libevent decouples for us
195: */
196: switch (sig) {
197: case SIGINT:
198: case SIGTERM:
199: case SIGHUP:
200: warnx("Terminated by signal %d", sig);
201: exit(0);
202: break; /* NOTREACHED */
203: default:
204: errx(1, "unexpected signal %d", sig);
205: break; /* NOTREACHED */
206: }
207: }
208:
209: static void
1.1 djm 210: saddr_ntop(const struct sockaddr *addr, socklen_t alen, char *buf, size_t len)
211: {
212: char hbuf[NI_MAXHOST], pbuf[NI_MAXSERV];
213: int herr;
214:
1.3 djm 215: if ((herr = getnameinfo(addr, alen, hbuf, sizeof(hbuf),
216: pbuf, sizeof(pbuf), NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
1.1 djm 217: if (herr == EAI_SYSTEM)
218: err(1, "getnameinfo");
219: else
220: errx(1, "getnameinfo: %s", gai_strerror(herr));
221: }
222: snprintf(buf, len, "[%s]:%s", hbuf, pbuf);
223: }
224:
225: static void
1.20 claudio 226: drop_gid(void)
227: {
228: gid_t gid;
229:
230: gid = getgid();
231: if (setresgid(gid, gid, gid) == -1)
232: err(1, "setresgid");
233: }
234:
235: static void
236: set_slice_timer(int on)
1.11 claudio 237: {
1.20 claudio 238: struct timeval tv;
1.11 claudio 239:
1.20 claudio 240: if (ptb->rflag == 0)
1.11 claudio 241: return;
242:
1.20 claudio 243: if (on) {
244: if (evtimer_pending(&mainstats.timer, NULL))
245: return;
246: timerclear(&tv);
247: /* XXX Is there a better way to do this ? */
248: tv.tv_sec = ptb->rflag / 1000;
249: tv.tv_usec = (ptb->rflag % 1000) * 1000;
250:
251: evtimer_add(&mainstats.timer, &tv);
252: } else if (evtimer_pending(&mainstats.timer, NULL))
253: evtimer_del(&mainstats.timer);
254: }
1.11 claudio 255:
1.20 claudio 256: static int
257: clock_gettime_tv(clockid_t clock_id, struct timeval *tv)
258: {
259: struct timespec ts;
260:
261: if (clock_gettime(clock_id, &ts) == -1)
262: return (-1);
263:
264: TIMESPEC_TO_TIMEVAL(tv, &ts);
265:
266: return (0);
1.11 claudio 267: }
268:
269: static void
1.20 claudio 270: print_tcp_header(void)
1.11 claudio 271: {
272: char **kv;
1.20 claudio 273:
1.11 claudio 274: printf("%12s %14s %12s %8s ", "elapsed_ms", "bytes", "mbps",
275: "bwidth");
1.20 claudio 276: for (kv = ptb->kvars; ptb->kvars != NULL && *kv != NULL; kv++)
277: printf("%s%s", kv != ptb->kvars ? "," : "", *kv);
1.11 claudio 278: printf("\n");
279: }
280:
281: static void
1.20 claudio 282: kget(u_long addr, void *buf, size_t size)
1.1 djm 283: {
1.20 claudio 284: if (kvm_read(ptb->kvmh, addr, buf, size) != (ssize_t)size)
285: errx(1, "kvm_read: %s", kvm_geterr(ptb->kvmh));
1.1 djm 286: }
287:
288: static u_long
1.20 claudio 289: kfind_tcb(int sock)
1.1 djm 290: {
291: struct inpcbtable tcbtab;
1.40 tedu 292: struct inpcb *next, *prev;
1.41 tedu 293: struct inpcb inpcb, prevpcb;
1.1 djm 294: struct tcpcb tcpcb;
295:
296: struct sockaddr_storage me, them;
297: socklen_t melen, themlen;
298: struct sockaddr_in *in4;
299: struct sockaddr_in6 *in6;
300: char tmp1[64], tmp2[64];
1.11 claudio 301: int nretry;
1.1 djm 302:
1.11 claudio 303: nretry = 10;
1.1 djm 304: melen = themlen = sizeof(struct sockaddr_storage);
305: if (getsockname(sock, (struct sockaddr *)&me, &melen) == -1)
306: err(1, "getsockname");
307: if (getpeername(sock, (struct sockaddr *)&them, &themlen) == -1)
308: err(1, "getpeername");
309: if (me.ss_family != them.ss_family)
310: errx(1, "%s: me.ss_family != them.ss_family", __func__);
311: if (me.ss_family != AF_INET && me.ss_family != AF_INET6)
312: errx(1, "%s: unknown socket family", __func__);
1.20 claudio 313: if (ptb->vflag >= 2) {
1.1 djm 314: saddr_ntop((struct sockaddr *)&me, me.ss_len,
315: tmp1, sizeof(tmp1));
316: saddr_ntop((struct sockaddr *)&them, them.ss_len,
317: tmp2, sizeof(tmp2));
318: fprintf(stderr, "Our socket local %s remote %s\n", tmp1, tmp2);
319: }
1.20 claudio 320: if (ptb->vflag >= 2)
321: fprintf(stderr, "Using PCB table at %lu\n", ptb->ktcbtab);
1.11 claudio 322: retry:
1.20 claudio 323: kget(ptb->ktcbtab, &tcbtab, sizeof(tcbtab));
1.40 tedu 324: prev = NULL;
1.39 krw 325: next = TAILQ_FIRST(&tcbtab.inpt_queue);
1.1 djm 326:
1.20 claudio 327: if (ptb->vflag >= 2)
1.40 tedu 328: fprintf(stderr, "PCB start at %p\n", next);
329: while (next != NULL) {
1.20 claudio 330: if (ptb->vflag >= 2)
1.1 djm 331: fprintf(stderr, "Checking PCB %p\n", next);
1.20 claudio 332: kget((u_long)next, &inpcb, sizeof(inpcb));
1.41 tedu 333: if (prev != NULL) {
334: kget((u_long)prev, &prevpcb, sizeof(prevpcb));
335: if (TAILQ_NEXT(&prevpcb, inp_queue) != next) {
336: if (nretry--) {
337: warnx("PCB prev pointer insane");
338: goto retry;
339: } else
340: errx(1, "PCB prev pointer insane,"
341: " all attempts exhaused");
342: }
343: }
1.1 djm 344: prev = next;
1.39 krw 345: next = TAILQ_NEXT(&inpcb, inp_queue);
1.1 djm 346:
347: if (me.ss_family == AF_INET) {
348: if ((inpcb.inp_flags & INP_IPV6) != 0) {
1.20 claudio 349: if (ptb->vflag >= 2)
1.1 djm 350: fprintf(stderr, "Skip: INP_IPV6");
351: continue;
352: }
1.20 claudio 353: if (ptb->vflag >= 2) {
1.1 djm 354: inet_ntop(AF_INET, &inpcb.inp_laddr,
355: tmp1, sizeof(tmp1));
356: inet_ntop(AF_INET, &inpcb.inp_faddr,
357: tmp2, sizeof(tmp2));
358: fprintf(stderr, "PCB %p local: [%s]:%d "
359: "remote: [%s]:%d\n", prev,
360: tmp1, inpcb.inp_lport,
361: tmp2, inpcb.inp_fport);
362: }
363: in4 = (struct sockaddr_in *)&me;
364: if (memcmp(&in4->sin_addr, &inpcb.inp_laddr,
365: sizeof(struct in_addr)) != 0 ||
366: in4->sin_port != inpcb.inp_lport)
367: continue;
368: in4 = (struct sockaddr_in *)&them;
369: if (memcmp(&in4->sin_addr, &inpcb.inp_faddr,
370: sizeof(struct in_addr)) != 0 ||
371: in4->sin_port != inpcb.inp_fport)
372: continue;
373: } else {
374: if ((inpcb.inp_flags & INP_IPV6) == 0)
375: continue;
1.20 claudio 376: if (ptb->vflag >= 2) {
1.1 djm 377: inet_ntop(AF_INET6, &inpcb.inp_laddr6,
378: tmp1, sizeof(tmp1));
379: inet_ntop(AF_INET6, &inpcb.inp_faddr6,
380: tmp2, sizeof(tmp2));
381: fprintf(stderr, "PCB %p local: [%s]:%d "
382: "remote: [%s]:%d\n", prev,
383: tmp1, inpcb.inp_lport,
384: tmp2, inpcb.inp_fport);
385: }
386: in6 = (struct sockaddr_in6 *)&me;
387: if (memcmp(&in6->sin6_addr, &inpcb.inp_laddr6,
388: sizeof(struct in6_addr)) != 0 ||
389: in6->sin6_port != inpcb.inp_lport)
390: continue;
391: in6 = (struct sockaddr_in6 *)&them;
392: if (memcmp(&in6->sin6_addr, &inpcb.inp_faddr6,
393: sizeof(struct in6_addr)) != 0 ||
394: in6->sin6_port != inpcb.inp_fport)
395: continue;
396: }
1.20 claudio 397: kget((u_long)inpcb.inp_ppcb, &tcpcb, sizeof(tcpcb));
1.1 djm 398: if (tcpcb.t_state != TCPS_ESTABLISHED) {
1.20 claudio 399: if (ptb->vflag >= 2)
1.1 djm 400: fprintf(stderr, "Not established\n");
401: continue;
402: }
1.20 claudio 403: if (ptb->vflag >= 2)
1.1 djm 404: fprintf(stderr, "Found PCB at %p\n", prev);
1.20 claudio 405: return ((u_long)prev);
1.1 djm 406: }
407:
408: errx(1, "No matching PCB found");
409: }
410:
411: static void
1.20 claudio 412: kupdate_stats(u_long tcbaddr, struct inpcb *inpcb,
413: struct tcpcb *tcpcb, struct socket *sockb)
1.1 djm 414: {
1.20 claudio 415: kget(tcbaddr, inpcb, sizeof(*inpcb));
416: kget((u_long)inpcb->inp_ppcb, tcpcb, sizeof(*tcpcb));
417: kget((u_long)inpcb->inp_socket, sockb, sizeof(*sockb));
1.1 djm 418: }
419:
420: static void
421: check_kvar(const char *var)
422: {
1.16 deraadt 423: u_int i;
1.1 djm 424:
425: for (i = 0; allowed_kvars[i] != NULL; i++)
426: if (strcmp(allowed_kvars[i], var) == 0)
427: return;
428: errx(1, "Unrecognised kvar: %s", var);
429: }
430:
431: static void
432: list_kvars(void)
433: {
1.16 deraadt 434: u_int i;
1.1 djm 435:
1.26 haesbaer 436: printf("Supported kernel variables:\n");
1.1 djm 437: for (i = 0; allowed_kvars[i] != NULL; i++)
1.26 haesbaer 438: printf("\t%s\n", allowed_kvars[i]);
1.1 djm 439: }
440:
441: static char **
442: check_prepare_kvars(char *list)
443: {
444: char *item, **ret = NULL;
1.16 deraadt 445: u_int n = 0;
1.1 djm 446:
447: while ((item = strsep(&list, ", \t\n")) != NULL) {
448: check_kvar(item);
1.43 lteo 449: if ((ret = reallocarray(ret, (++n + 1), sizeof(*ret))) == NULL)
450: errx(1, "reallocarray(kvars)");
1.1 djm 451: if ((ret[n - 1] = strdup(item)) == NULL)
452: errx(1, "strdup");
453: ret[n] = NULL;
454: }
1.20 claudio 455: return (ret);
1.1 djm 456: }
457:
458: static void
1.20 claudio 459: stats_prepare(struct statctx *sc)
1.1 djm 460: {
1.20 claudio 461: sc->buf = ptb->dummybuf;
462: sc->buflen = ptb->dummybuf_len;
463:
464: if (ptb->kvars)
465: sc->tcp_tcbaddr = kfind_tcb(sc->fd);
466: if (clock_gettime_tv(CLOCK_MONOTONIC, &sc->t_start) == -1)
467: err(1, "clock_gettime_tv");
1.1 djm 468: sc->t_last = sc->t_start;
469:
470: }
471:
472: static void
1.20 claudio 473: tcp_stats_display(unsigned long long total_elapsed, long double mbps,
1.11 claudio 474: float bwperc, struct statctx *sc, struct inpcb *inpcb,
475: struct tcpcb *tcpcb, struct socket *sockb)
476: {
477: int j;
478:
479: printf("%12llu %14llu %12.3Lf %7.2f%% ", total_elapsed, sc->bytes,
480: mbps, bwperc);
481:
1.20 claudio 482: if (ptb->kvars != NULL) {
483: kupdate_stats(sc->tcp_tcbaddr, inpcb, tcpcb,
1.11 claudio 484: sockb);
1.1 djm 485:
1.20 claudio 486: for (j = 0; ptb->kvars[j] != NULL; j++) {
1.11 claudio 487: #define S(a) #a
488: #define P(b, v, f) \
1.20 claudio 489: if (strcmp(ptb->kvars[j], S(b.v)) == 0) { \
1.11 claudio 490: printf("%s"f, j > 0 ? "," : "", b->v); \
491: continue; \
492: }
493: P(inpcb, inp_flags, "0x%08x")
494: P(sockb, so_rcv.sb_cc, "%lu")
1.26 haesbaer 495: P(sockb, so_rcv.sb_hiwat, "%lu")
1.19 claudio 496: P(sockb, so_rcv.sb_wat, "%lu")
1.11 claudio 497: P(sockb, so_snd.sb_cc, "%lu")
1.26 haesbaer 498: P(sockb, so_snd.sb_hiwat, "%lu")
1.19 claudio 499: P(sockb, so_snd.sb_wat, "%lu")
1.26 haesbaer 500: P(tcpcb, last_ack_sent, "%u")
501: P(tcpcb, max_sndwnd, "%lu")
502: P(tcpcb, rcv_adv, "%u")
503: P(tcpcb, rcv_nxt, "%u")
504: P(tcpcb, rcv_scale, "%u")
505: P(tcpcb, rcv_wnd, "%lu")
506: P(tcpcb, rfbuf_cnt, "%u")
507: P(tcpcb, rfbuf_ts, "%u")
508: P(tcpcb, snd_cwnd, "%lu")
509: P(tcpcb, snd_max, "%u")
510: P(tcpcb, snd_nxt, "%u")
511: P(tcpcb, snd_scale, "%u")
512: P(tcpcb, snd_ssthresh, "%lu")
1.11 claudio 513: P(tcpcb, snd_una, "%u")
514: P(tcpcb, snd_wl1, "%u")
515: P(tcpcb, snd_wl2, "%u")
516: P(tcpcb, snd_wnd, "%lu")
517: P(tcpcb, t_rcvtime, "%u")
1.26 haesbaer 518: P(tcpcb, t_rtseq, "%u")
519: P(tcpcb, t_rttmin, "%hu")
1.11 claudio 520: P(tcpcb, t_rtttime, "%u")
1.26 haesbaer 521: P(tcpcb, t_rttvar, "%hu")
1.11 claudio 522: P(tcpcb, t_srtt, "%hu")
1.26 haesbaer 523: P(tcpcb, ts_recent, "%u")
1.19 claudio 524: P(tcpcb, ts_recent_age, "%u")
1.11 claudio 525: #undef S
1.1 djm 526: #undef P
527: }
528: }
529: printf("\n");
530: }
531:
532: static void
1.20 claudio 533: tcp_process_slice(int fd, short event, void *bula)
1.1 djm 534: {
1.11 claudio 535: unsigned long long total_elapsed, since_last;
536: long double mbps, slice_mbps = 0;
537: float bwperc;
1.20 claudio 538: struct statctx *sc;
1.11 claudio 539: struct timeval t_cur, t_diff;
540: struct inpcb inpcb;
541: struct tcpcb tcpcb;
542: struct socket sockb;
543:
1.20 claudio 544: TAILQ_FOREACH(sc, &sc_queue, entry) {
545: if (clock_gettime_tv(CLOCK_MONOTONIC, &t_cur) == -1)
546: err(1, "clock_gettime_tv");
547: if (ptb->kvars != NULL) /* process kernel stats */
548: kupdate_stats(sc->tcp_tcbaddr, &inpcb, &tcpcb,
1.11 claudio 549: &sockb);
1.20 claudio 550:
1.11 claudio 551: timersub(&t_cur, &sc->t_start, &t_diff);
552: total_elapsed = t_diff.tv_sec * 1000 + t_diff.tv_usec / 1000;
553: timersub(&t_cur, &sc->t_last, &t_diff);
554: since_last = t_diff.tv_sec * 1000 + t_diff.tv_usec / 1000;
555: bwperc = (sc->bytes * 100.0) / mainstats.slice_bytes;
556: mbps = (sc->bytes * 8) / (since_last * 1000.0);
557: slice_mbps += mbps;
558:
1.20 claudio 559: tcp_stats_display(total_elapsed, mbps, bwperc, sc,
1.11 claudio 560: &inpcb, &tcpcb, &sockb);
561:
562: sc->t_last = t_cur;
563: sc->bytes = 0;
564: }
1.1 djm 565:
1.11 claudio 566: /* process stats for this slice */
567: if (slice_mbps > mainstats.peak_mbps)
568: mainstats.peak_mbps = slice_mbps;
1.20 claudio 569: printf("Conn: %3d Mbps: %12.3Lf Peak Mbps: %12.3Lf Avg Mbps: %12.3Lf\n",
570: mainstats.nconns, slice_mbps, mainstats.peak_mbps,
1.36 haesbaer 571: mainstats.nconns ? slice_mbps / mainstats.nconns : 0);
1.20 claudio 572: mainstats.slice_bytes = 0;
573:
574: set_slice_timer(mainstats.nconns > 0);
575: }
576:
577: static void
578: udp_process_slice(int fd, short event, void *v_sc)
579: {
580: struct statctx *sc = v_sc;
1.31 haesbaer 581: unsigned long long total_elapsed, since_last, pps;
582: long double slice_mbps;
1.20 claudio 583: struct timeval t_cur, t_diff;
584:
585: if (clock_gettime_tv(CLOCK_MONOTONIC, &t_cur) == -1)
586: err(1, "clock_gettime_tv");
587: /* Calculate pps */
588: timersub(&t_cur, &sc->t_start, &t_diff);
589: total_elapsed = t_diff.tv_sec * 1000 + t_diff.tv_usec / 1000;
590: timersub(&t_cur, &sc->t_last, &t_diff);
591: since_last = t_diff.tv_sec * 1000 + t_diff.tv_usec / 1000;
592: slice_mbps = (sc->bytes * 8) / (since_last * 1000.0);
593: pps = (sc->udp_slice_pkts * 1000) / since_last;
594: if (slice_mbps > mainstats.peak_mbps)
595: mainstats.peak_mbps = slice_mbps;
1.31 haesbaer 596: printf("Elapsed: %11llu Mbps: %11.3Lf Peak Mbps: %11.3Lf %s PPS: %7llu\n",
1.20 claudio 597: total_elapsed, slice_mbps, mainstats.peak_mbps,
598: ptb->sflag ? "Rx" : "Tx", pps);
599:
600: /* Clean up this slice time */
601: sc->t_last = t_cur;
602: sc->bytes = 0;
603: sc->udp_slice_pkts = 0;
604: set_slice_timer(1);
1.11 claudio 605: }
1.1 djm 606:
1.20 claudio 607: static void
608: udp_server_handle_sc(int fd, short event, void *v_sc)
1.11 claudio 609: {
610: ssize_t n;
1.20 claudio 611: struct statctx *sc = v_sc;
1.1 djm 612:
1.20 claudio 613: n = read(fd, ptb->dummybuf, ptb->dummybuf_len);
614: if (n == 0)
615: return;
616: else if (n == -1) {
1.34 haesbaer 617: if (errno != EINTR && errno != EWOULDBLOCK)
618: warn("fd %d read error", fd);
1.20 claudio 619: return;
620: }
1.11 claudio 621:
1.20 claudio 622: if (ptb->vflag >= 3)
623: fprintf(stderr, "read: %zd bytes\n", n);
624: /* If this was our first packet, start slice timer */
625: if (mainstats.peak_mbps == 0)
626: set_slice_timer(1);
627: /* Account packet */
628: sc->udp_slice_pkts++;
629: sc->bytes += n;
630: }
631:
632: static void
633: tcp_server_handle_sc(int fd, short event, void *v_sc)
634: {
635: struct statctx *sc = v_sc;
636: ssize_t n;
637:
638: n = read(sc->fd, sc->buf, sc->buflen);
639: if (n == -1) {
1.34 haesbaer 640: if (errno != EINTR && errno != EWOULDBLOCK)
641: warn("fd %d read error", sc->fd);
1.20 claudio 642: return;
643: } else if (n == 0) {
644: if (ptb->vflag)
645: fprintf(stderr, "%8d closed by remote end\n", sc->fd);
1.33 haesbaer 646:
647: TAILQ_REMOVE(&sc_queue, sc, entry);
648:
1.23 sthen 649: event_del(&sc->ev);
1.20 claudio 650: close(sc->fd);
1.33 haesbaer 651:
652: /* Some file descriptors are available again. */
653: if (evtimer_pending(&sc->tcp_ts->evt, NULL)) {
654: evtimer_del(&sc->tcp_ts->evt);
655: event_add(&sc->tcp_ts->ev, NULL);
656: }
657:
1.20 claudio 658: free(sc);
659: mainstats.nconns--;
660: return;
1.1 djm 661: }
1.20 claudio 662: if (ptb->vflag >= 3)
1.11 claudio 663: fprintf(stderr, "read: %zd bytes\n", n);
1.20 claudio 664: sc->bytes += n;
665: mainstats.slice_bytes += n;
666: }
1.11 claudio 667:
1.20 claudio 668: static void
1.33 haesbaer 669: tcp_server_accept(int fd, short event, void *arg)
1.20 claudio 670: {
1.33 haesbaer 671: struct tcpservsock *ts = arg;
1.49 ! chl 672: int sock;
1.20 claudio 673: struct statctx *sc;
674: struct sockaddr_storage ss;
675: socklen_t sslen;
676: char tmp[128];
677:
678: sslen = sizeof(ss);
1.33 haesbaer 679:
680: event_add(&ts->ev, NULL);
681: if (event & EV_TIMEOUT)
682: return;
1.48 guenther 683: if ((sock = accept4(fd, (struct sockaddr *)&ss, &sslen, SOCK_NONBLOCK))
684: == -1) {
1.33 haesbaer 685: /*
686: * Pause accept if we are out of file descriptors, or
687: * libevent will haunt us here too.
688: */
689: if (errno == ENFILE || errno == EMFILE) {
690: struct timeval evtpause = { 1, 0 };
691:
692: event_del(&ts->ev);
693: evtimer_add(&ts->evt, &evtpause);
1.38 deraadt 694: } else if (errno != EWOULDBLOCK && errno != EINTR &&
695: errno != ECONNABORTED)
1.33 haesbaer 696: warn("accept");
1.20 claudio 697: return;
698: }
699: saddr_ntop((struct sockaddr *)&ss, sslen,
700: tmp, sizeof(tmp));
1.24 haesbaer 701: if (ptb->Tflag != -1 && ss.ss_family == AF_INET) {
702: if (setsockopt(sock, IPPROTO_IP, IP_TOS,
703: &ptb->Tflag, sizeof(ptb->Tflag)))
704: err(1, "setsockopt IP_TOS");
705: }
706: if (ptb->Tflag != -1 && ss.ss_family == AF_INET6) {
707: if (setsockopt(sock, IPPROTO_IPV6, IPV6_TCLASS,
708: &ptb->Tflag, sizeof(ptb->Tflag)))
709: err(1, "setsockopt IPV6_TCLASS");
710: }
1.20 claudio 711: /* Alloc client structure and register reading callback */
712: if ((sc = calloc(1, sizeof(*sc))) == NULL)
713: err(1, "calloc");
1.33 haesbaer 714: sc->tcp_ts = ts;
1.20 claudio 715: sc->fd = sock;
716: stats_prepare(sc);
717: event_set(&sc->ev, sc->fd, EV_READ | EV_PERSIST,
718: tcp_server_handle_sc, sc);
719: event_add(&sc->ev, NULL);
720: TAILQ_INSERT_TAIL(&sc_queue, sc, entry);
721: mainstats.nconns++;
1.36 haesbaer 722: if (mainstats.nconns == 1)
723: set_slice_timer(1);
1.20 claudio 724: if (ptb->vflag)
1.28 haesbaer 725: fprintf(stderr, "Accepted connection from %s, fd = %d\n",
726: tmp, sc->fd);
1.1 djm 727: }
728:
1.20 claudio 729: static void
730: server_init(struct addrinfo *aitop, struct statctx *udp_sc)
1.1 djm 731: {
732: char tmp[128];
1.11 claudio 733: int sock, on = 1;
1.1 djm 734: struct addrinfo *ai;
1.20 claudio 735: struct event *ev;
1.33 haesbaer 736: struct tcpservsock *ts;
1.11 claudio 737: nfds_t lnfds;
1.1 djm 738:
1.11 claudio 739: lnfds = 0;
1.1 djm 740: for (ai = aitop; ai != NULL; ai = ai->ai_next) {
741: saddr_ntop(ai->ai_addr, ai->ai_addrlen, tmp, sizeof(tmp));
1.20 claudio 742: if (ptb->vflag)
743: fprintf(stderr, "Try to bind to %s\n", tmp);
1.1 djm 744: if ((sock = socket(ai->ai_family, ai->ai_socktype,
745: ai->ai_protocol)) == -1) {
746: if (ai->ai_next == NULL)
747: err(1, "socket");
1.20 claudio 748: if (ptb->vflag)
1.1 djm 749: warn("socket");
750: continue;
751: }
1.24 haesbaer 752: if (ptb->Tflag != -1 && ai->ai_family == AF_INET) {
753: if (setsockopt(sock, IPPROTO_IP, IP_TOS,
754: &ptb->Tflag, sizeof(ptb->Tflag)))
755: err(1, "setsockopt IP_TOS");
756: }
757: if (ptb->Tflag != -1 && ai->ai_family == AF_INET6) {
758: if (setsockopt(sock, IPPROTO_IPV6, IPV6_TCLASS,
759: &ptb->Tflag, sizeof(ptb->Tflag)))
760: err(1, "setsockopt IPV6_TCLASS");
761: }
1.1 djm 762: if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
763: &on, sizeof(on)) == -1)
764: warn("reuse port");
765: if (bind(sock, ai->ai_addr, ai->ai_addrlen) != 0) {
766: if (ai->ai_next == NULL)
767: err(1, "bind");
1.20 claudio 768: if (ptb->vflag)
1.1 djm 769: warn("bind");
770: close(sock);
771: continue;
772: }
1.20 claudio 773: if (ptb->Sflag) {
1.1 djm 774: if (setsockopt(sock, SOL_SOCKET, SO_RCVBUF,
1.20 claudio 775: &ptb->Sflag, sizeof(ptb->Sflag)) == -1)
776: warn("set receive buffer size");
1.1 djm 777: }
1.20 claudio 778: if (TCP_MODE) {
779: if (listen(sock, 64) == -1) {
780: if (ai->ai_next == NULL)
781: err(1, "listen");
782: if (ptb->vflag)
783: warn("listen");
784: close(sock);
785: continue;
786: }
1.1 djm 787: }
1.33 haesbaer 788: if (UDP_MODE) {
789: if ((ev = calloc(1, sizeof(*ev))) == NULL)
790: err(1, "calloc");
1.20 claudio 791: event_set(ev, sock, EV_READ | EV_PERSIST,
792: udp_server_handle_sc, udp_sc);
1.33 haesbaer 793: event_add(ev, NULL);
794: } else {
795: if ((ts = calloc(1, sizeof(*ts))) == NULL)
796: err(1, "calloc");
797:
798: ts->fd = sock;
799: evtimer_set(&ts->evt, tcp_server_accept, ts);
800: event_set(&ts->ev, ts->fd, EV_READ,
801: tcp_server_accept, ts);
802: event_add(&ts->ev, NULL);
803: }
1.20 claudio 804: if (ptb->vflag >= 3)
805: fprintf(stderr, "bound to fd %d\n", sock);
1.11 claudio 806: lnfds++;
1.1 djm 807: }
808: freeaddrinfo(aitop);
1.11 claudio 809: if (lnfds == 0)
1.1 djm 810: errx(1, "No working listen addresses found");
1.11 claudio 811: }
812:
813: static void
1.20 claudio 814: client_handle_sc(int fd, short event, void *v_sc)
815: {
816: struct statctx *sc = v_sc;
817: ssize_t n;
1.1 djm 818:
1.20 claudio 819: if ((n = write(sc->fd, sc->buf, sc->buflen)) == -1) {
1.34 haesbaer 820: if (errno == EINTR || errno == EWOULDBLOCK ||
1.20 claudio 821: (UDP_MODE && errno == ENOBUFS))
1.34 haesbaer 822: return;
1.20 claudio 823: err(1, "write");
1.11 claudio 824: }
1.20 claudio 825: if (TCP_MODE && n == 0) {
1.28 haesbaer 826: fprintf(stderr, "Remote end closed connection");
1.20 claudio 827: exit(1);
1.1 djm 828: }
1.20 claudio 829: if (ptb->vflag >= 3)
1.28 haesbaer 830: fprintf(stderr, "write: %zd bytes\n", n);
1.20 claudio 831: sc->bytes += n;
832: mainstats.slice_bytes += n;
833: if (UDP_MODE)
834: sc->udp_slice_pkts++;
1.1 djm 835: }
836:
1.20 claudio 837: static void
1.25 haesbaer 838: client_init(struct addrinfo *aitop, int nconn, struct statctx *udp_sc,
839: struct addrinfo *aib)
1.1 djm 840: {
1.20 claudio 841: struct statctx *sc;
842: struct addrinfo *ai;
1.14 claudio 843: char tmp[128];
844: int i, r, sock;
1.1 djm 845:
1.20 claudio 846: sc = udp_sc;
1.4 henning 847: for (i = 0; i < nconn; i++) {
848: for (sock = -1, ai = aitop; ai != NULL; ai = ai->ai_next) {
849: saddr_ntop(ai->ai_addr, ai->ai_addrlen, tmp,
850: sizeof(tmp));
1.20 claudio 851: if (ptb->vflag && i == 0)
1.4 henning 852: fprintf(stderr, "Trying %s\n", tmp);
853: if ((sock = socket(ai->ai_family, ai->ai_socktype,
854: ai->ai_protocol)) == -1) {
855: if (ai->ai_next == NULL)
856: err(1, "socket");
1.20 claudio 857: if (ptb->vflag)
1.4 henning 858: warn("socket");
859: continue;
860: }
1.25 haesbaer 861: if (aib != NULL) {
862: saddr_ntop(aib->ai_addr, aib->ai_addrlen,
863: tmp, sizeof(tmp));
864: if (ptb->vflag)
865: fprintf(stderr,
866: "Try to bind to %s\n", tmp);
867: if (bind(sock, (struct sockaddr *)aib->ai_addr,
868: aib->ai_addrlen) == -1)
869: err(1, "bind");
870: }
1.24 haesbaer 871: if (ptb->Tflag != -1 && ai->ai_family == AF_INET) {
872: if (setsockopt(sock, IPPROTO_IP, IP_TOS,
873: &ptb->Tflag, sizeof(ptb->Tflag)))
874: err(1, "setsockopt IP_TOS");
875: }
876: if (ptb->Tflag != -1 && ai->ai_family == AF_INET6) {
877: if (setsockopt(sock, IPPROTO_IPV6, IPV6_TCLASS,
878: &ptb->Tflag, sizeof(ptb->Tflag)))
879: err(1, "setsockopt IPV6_TCLASS");
880: }
1.20 claudio 881: if (ptb->Sflag) {
1.4 henning 882: if (setsockopt(sock, SOL_SOCKET, SO_SNDBUF,
1.20 claudio 883: &ptb->Sflag, sizeof(ptb->Sflag)) == -1)
1.4 henning 884: warn("set TCP send buffer size");
885: }
886: if (connect(sock, ai->ai_addr, ai->ai_addrlen) != 0) {
887: if (ai->ai_next == NULL)
888: err(1, "connect");
1.20 claudio 889: if (ptb->vflag)
1.4 henning 890: warn("connect");
891: close(sock);
892: sock = -1;
893: continue;
894: }
895: break;
1.1 djm 896: }
1.4 henning 897: if (sock == -1)
898: errx(1, "No host found");
899: if ((r = fcntl(sock, F_GETFL, 0)) == -1)
900: err(1, "fcntl(F_GETFL)");
901: r |= O_NONBLOCK;
902: if (fcntl(sock, F_SETFL, r) == -1)
903: err(1, "fcntl(F_SETFL, O_NONBLOCK)");
1.20 claudio 904: /* Alloc and prepare stats */
905: if (TCP_MODE) {
906: if ((sc = calloc(1, sizeof(*sc))) == NULL)
907: err(1, "calloc");
908: }
909: sc->fd = sock;
910: stats_prepare(sc);
911: event_set(&sc->ev, sc->fd, EV_WRITE | EV_PERSIST,
912: client_handle_sc, sc);
913: event_add(&sc->ev, NULL);
914: TAILQ_INSERT_TAIL(&sc_queue, sc, entry);
915: mainstats.nconns++;
1.36 haesbaer 916: if (mainstats.nconns == 1)
917: set_slice_timer(1);
1.14 claudio 918: }
919: freeaddrinfo(aitop);
1.35 haesbaer 920: if (aib != NULL)
921: freeaddrinfo(aib);
1.14 claudio 922:
1.20 claudio 923: if (ptb->vflag && nconn > 1)
1.29 haesbaer 924: fprintf(stderr, "%d connections established\n",
925: mainstats.nconns);
1.14 claudio 926: }
927:
1.24 haesbaer 928: static int
929: map_tos(char *s, int *val)
930: {
931: /* DiffServ Codepoints and other TOS mappings */
932: const struct toskeywords {
933: const char *keyword;
934: int val;
935: } *t, toskeywords[] = {
936: { "af11", IPTOS_DSCP_AF11 },
937: { "af12", IPTOS_DSCP_AF12 },
938: { "af13", IPTOS_DSCP_AF13 },
939: { "af21", IPTOS_DSCP_AF21 },
940: { "af22", IPTOS_DSCP_AF22 },
941: { "af23", IPTOS_DSCP_AF23 },
942: { "af31", IPTOS_DSCP_AF31 },
943: { "af32", IPTOS_DSCP_AF32 },
944: { "af33", IPTOS_DSCP_AF33 },
945: { "af41", IPTOS_DSCP_AF41 },
946: { "af42", IPTOS_DSCP_AF42 },
947: { "af43", IPTOS_DSCP_AF43 },
948: { "critical", IPTOS_PREC_CRITIC_ECP },
949: { "cs0", IPTOS_DSCP_CS0 },
950: { "cs1", IPTOS_DSCP_CS1 },
951: { "cs2", IPTOS_DSCP_CS2 },
952: { "cs3", IPTOS_DSCP_CS3 },
953: { "cs4", IPTOS_DSCP_CS4 },
954: { "cs5", IPTOS_DSCP_CS5 },
955: { "cs6", IPTOS_DSCP_CS6 },
956: { "cs7", IPTOS_DSCP_CS7 },
957: { "ef", IPTOS_DSCP_EF },
958: { "inetcontrol", IPTOS_PREC_INTERNETCONTROL },
959: { "lowdelay", IPTOS_LOWDELAY },
960: { "netcontrol", IPTOS_PREC_NETCONTROL },
961: { "reliability", IPTOS_RELIABILITY },
962: { "throughput", IPTOS_THROUGHPUT },
963: { NULL, -1 },
964: };
965:
966: for (t = toskeywords; t->keyword != NULL; t++) {
967: if (strcmp(s, t->keyword) == 0) {
968: *val = t->val;
969: return (1);
970: }
971: }
972:
973: return (0);
974: }
975:
1.30 henning 976: static void
977: quit(int sig, short event, void *arg)
978: {
979: exit(0);
980: }
981:
1.1 djm 982: int
983: main(int argc, char **argv)
984: {
1.30 henning 985: struct timeval tv;
1.37 haesbaer 986: unsigned int secs, rtable;
1.1 djm 987:
988: char kerr[_POSIX2_LINE_MAX], *tmp;
1.25 haesbaer 989: struct addrinfo *aitop, *aib, hints;
1.1 djm 990: const char *errstr;
1.11 claudio 991: struct rlimit rl;
1.20 claudio 992: int ch, herr, nconn;
1.42 dlg 993: int family = PF_UNSPEC;
1.12 deraadt 994: struct nlist nl[] = { { "_tcbtable" }, { "" } };
1.25 haesbaer 995: const char *host = NULL, *port = DEFAULT_PORT, *srcbind = NULL;
1.30 henning 996: struct event ev_sigint, ev_sigterm, ev_sighup, ev_progtimer;
1.20 claudio 997: struct statctx *udp_sc = NULL;
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;
1.37 haesbaer 1003: ptb->Sflag = ptb->sflag = ptb->vflag = 0;
1.20 claudio 1004: ptb->kvmh = NULL;
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:
1.42 dlg 1012: while ((ch = getopt(argc, argv, "46b:B:hlk:n:p:r:sS:t:T:uvV:")) != -1) {
1.1 djm 1013: switch (ch) {
1.42 dlg 1014: case '4':
1015: family = PF_INET;
1016: break;
1017: case '6':
1018: family = PF_INET6;
1019: break;
1.25 haesbaer 1020: case 'b':
1021: srcbind = optarg;
1022: break;
1.1 djm 1023: case 'l':
1024: list_kvars();
1025: exit(0);
1026: case 'k':
1027: if ((tmp = strdup(optarg)) == NULL)
1028: errx(1, "strdup");
1.20 claudio 1029: ptb->kvars = check_prepare_kvars(tmp);
1.1 djm 1030: free(tmp);
1031: break;
1032: case 'r':
1.20 claudio 1033: ptb->rflag = strtonum(optarg, 0, 60 * 60 * 24 * 1000,
1.1 djm 1034: &errstr);
1035: if (errstr != NULL)
1036: errx(1, "statistics interval is %s: %s",
1037: errstr, optarg);
1038: break;
1039: case 'p':
1040: port = optarg;
1041: break;
1042: case 's':
1.20 claudio 1043: ptb->sflag = 1;
1.1 djm 1044: break;
1045: case 'S':
1.20 claudio 1046: ptb->Sflag = strtonum(optarg, 0, 1024*1024*1024,
1.1 djm 1047: &errstr);
1048: if (errstr != NULL)
1049: errx(1, "receive space interval is %s: %s",
1050: errstr, optarg);
1051: break;
1052: case 'B':
1.20 claudio 1053: ptb->dummybuf_len = strtonum(optarg, 0, 1024*1024*1024,
1.1 djm 1054: &errstr);
1055: if (errstr != NULL)
1056: errx(1, "read/write buffer size is %s: %s",
1057: errstr, optarg);
1058: break;
1059: case 'v':
1.20 claudio 1060: ptb->vflag++;
1.9 claudio 1061: break;
1062: case 'V':
1.37 haesbaer 1063: rtable = (unsigned int)strtonum(optarg, 0,
1.9 claudio 1064: RT_TABLEID_MAX, &errstr);
1065: if (errstr)
1.17 guenther 1066: errx(1, "rtable value is %s: %s",
1.9 claudio 1067: errstr, optarg);
1.37 haesbaer 1068: if (setrtable(rtable) == -1)
1069: err(1, "setrtable");
1.1 djm 1070: break;
1.4 henning 1071: case 'n':
1072: nconn = strtonum(optarg, 0, 65535, &errstr);
1073: if (errstr != NULL)
1074: errx(1, "number of connections is %s: %s",
1075: errstr, optarg);
1076: break;
1.20 claudio 1077: case 'u':
1078: ptb->uflag = 1;
1.24 haesbaer 1079: break;
1080: case 'T':
1081: if (map_tos(optarg, &ptb->Tflag))
1082: break;
1083: errstr = NULL;
1084: if (strlen(optarg) > 1 && optarg[0] == '0' &&
1085: optarg[1] == 'x')
1086: ptb->Tflag = (int)strtol(optarg, NULL, 16);
1087: else
1088: ptb->Tflag = (int)strtonum(optarg, 0, 255,
1089: &errstr);
1090: if (ptb->Tflag == -1 || ptb->Tflag > 255 || errstr)
1091: errx(1, "illegal tos value %s", optarg);
1.20 claudio 1092: break;
1.30 henning 1093: case 't':
1094: secs = strtonum(optarg, 1, UINT_MAX, &errstr);
1095: if (errstr != NULL)
1096: errx(1, "secs is %s: %s",
1097: errstr, optarg);
1098: break;
1.1 djm 1099: case 'h':
1100: default:
1101: usage();
1102: }
1103: }
1104:
1.47 benno 1105: if (pledge("stdio rpath dns inet id proc", NULL) == -1)
1106: err(1, "pledge");
1107:
1.1 djm 1108: argv += optind;
1109: argc -= optind;
1.20 claudio 1110: if ((argc != (ptb->sflag ? 0 : 1)) ||
1111: (UDP_MODE && (ptb->kvars || nconn != 1)))
1.1 djm 1112: usage();
1.4 henning 1113:
1.46 deraadt 1114: if (ptb->kvars) {
1115: if ((ptb->kvmh = kvm_openfiles(NULL, NULL, NULL,
1116: O_RDONLY, kerr)) == NULL)
1117: errx(1, "kvm_open: %s", kerr);
1118: drop_gid();
1119: if (kvm_nlist(ptb->kvmh, nl) < 0 || nl[0].n_type == 0)
1120: errx(1, "kvm: no namelist");
1121: ptb->ktcbtab = nl[0].n_value;
1122: } else
1123: drop_gid();
1124:
1.47 benno 1125: if (pledge("stdio id dns inet", NULL) == -1)
1126: err(1, "pledge");
1127:
1.20 claudio 1128: if (!ptb->sflag)
1.1 djm 1129: host = argv[0];
1.20 claudio 1130: /*
1131: * Rationale,
1132: * If TCP, use a big buffer with big reads/writes.
1133: * If UDP, use a big buffer in server and a buffer the size of a
1134: * ethernet packet.
1135: */
1136: if (!ptb->dummybuf_len) {
1137: if (ptb->sflag || TCP_MODE)
1138: ptb->dummybuf_len = DEFAULT_BUF;
1139: else
1140: ptb->dummybuf_len = DEFAULT_UDP_PKT;
1141: }
1.1 djm 1142:
1.13 claudio 1143: bzero(&hints, sizeof(hints));
1.42 dlg 1144: hints.ai_family = family;
1.25 haesbaer 1145: if (UDP_MODE) {
1.20 claudio 1146: hints.ai_socktype = SOCK_DGRAM;
1.25 haesbaer 1147: hints.ai_protocol = IPPROTO_UDP;
1.27 haesbaer 1148: } else {
1.20 claudio 1149: hints.ai_socktype = SOCK_STREAM;
1.25 haesbaer 1150: hints.ai_protocol = IPPROTO_TCP;
1151: }
1.20 claudio 1152: if (ptb->sflag)
1.4 henning 1153: hints.ai_flags = AI_PASSIVE;
1.25 haesbaer 1154: if (srcbind != NULL) {
1155: hints.ai_flags |= AI_NUMERICHOST;
1156: herr = getaddrinfo(srcbind, NULL, &hints, &aib);
1157: hints.ai_flags &= ~AI_NUMERICHOST;
1158: if (herr != 0) {
1159: if (herr == EAI_SYSTEM)
1160: err(1, "getaddrinfo");
1161: else
1162: errx(1, "getaddrinfo: %s", gai_strerror(herr));
1163: }
1164: }
1.13 claudio 1165: if ((herr = getaddrinfo(host, port, &hints, &aitop)) != 0) {
1166: if (herr == EAI_SYSTEM)
1167: err(1, "getaddrinfo");
1168: else
1169: errx(1, "getaddrinfo: %s", gai_strerror(herr));
1.1 djm 1170: }
1171:
1.47 benno 1172: if (pledge("stdio id inet", NULL) == -1)
1173: err(1, "pledge");
1174:
1.11 claudio 1175: if (getrlimit(RLIMIT_NOFILE, &rl) == -1)
1176: err(1, "getrlimit");
1177: if (rl.rlim_cur < MAX_FD)
1178: rl.rlim_cur = MAX_FD;
1179: if (setrlimit(RLIMIT_NOFILE, &rl))
1180: err(1, "setrlimit");
1181: if (getrlimit(RLIMIT_NOFILE, &rl) == -1)
1182: err(1, "getrlimit");
1.47 benno 1183:
1184: if (pledge("stdio inet", NULL) == -1)
1185: err(1, "pledge");
1186:
1.20 claudio 1187: /* Init world */
1188: TAILQ_INIT(&sc_queue);
1189: if ((ptb->dummybuf = malloc(ptb->dummybuf_len)) == NULL)
1190: err(1, "malloc");
1191: arc4random_buf(ptb->dummybuf, ptb->dummybuf_len);
1192:
1193: /* Setup libevent and signals */
1194: event_init();
1195: signal_set(&ev_sigterm, SIGTERM, signal_handler, NULL);
1196: signal_set(&ev_sighup, SIGHUP, signal_handler, NULL);
1197: signal_set(&ev_sigint, SIGINT, signal_handler, NULL);
1198: signal_add(&ev_sigint, NULL);
1199: signal_add(&ev_sigterm, NULL);
1200: signal_add(&ev_sighup, NULL);
1201: signal(SIGPIPE, SIG_IGN);
1202:
1.27 haesbaer 1203: if (UDP_MODE) {
1204: if ((udp_sc = calloc(1, sizeof(*udp_sc))) == NULL)
1205: err(1, "calloc");
1206: udp_sc->fd = -1;
1207: stats_prepare(udp_sc);
1208: evtimer_set(&mainstats.timer, udp_process_slice, udp_sc);
1209: } else {
1.20 claudio 1210: print_tcp_header();
1211: evtimer_set(&mainstats.timer, tcp_process_slice, NULL);
1.27 haesbaer 1212: }
1.20 claudio 1213:
1.27 haesbaer 1214: if (ptb->sflag)
1.20 claudio 1215: server_init(aitop, udp_sc);
1.30 henning 1216: else {
1217: if (secs > 0) {
1218: timerclear(&tv);
1219: tv.tv_sec = secs + 1;
1220: evtimer_set(&ev_progtimer, quit, NULL);
1221: evtimer_add(&ev_progtimer, &tv);
1222: }
1.25 haesbaer 1223: client_init(aitop, nconn, udp_sc, aib);
1.47 benno 1224:
1225: if (pledge("stdio", NULL) == -1)
1226: err(1, "pledge");
1.30 henning 1227: }
1.47 benno 1228:
1.20 claudio 1229: /* libevent main loop*/
1230: event_dispatch();
1.1 djm 1231:
1.20 claudio 1232: return (0);
1.1 djm 1233: }
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