sctp.c revision 293307
11541Srgrimes/*- 21541Srgrimes * Copyright (c) 2001-2007, by Weongyo Jeong. All rights reserved. 31541Srgrimes * Copyright (c) 2011, by Michael Tuexen. All rights reserved. 41541Srgrimes * 51541Srgrimes * Redistribution and use in source and binary forms, with or without 61541Srgrimes * modification, are permitted provided that the following conditions are met: 71541Srgrimes * 81541Srgrimes * a) Redistributions of source code must retain the above copyright notice, 91541Srgrimes * this list of conditions and the following disclaimer. 101541Srgrimes * 111541Srgrimes * b) Redistributions in binary form must reproduce the above copyright 121541Srgrimes * notice, this list of conditions and the following disclaimer in 131541Srgrimes * the documentation and/or other materials provided with the distribution. 141541Srgrimes * 151541Srgrimes * c) Neither the name of Cisco Systems, Inc. nor the names of its 161541Srgrimes * contributors may be used to endorse or promote products derived 171541Srgrimes * from this software without specific prior written permission. 181541Srgrimes * 191541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 201541Srgrimes * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 211541Srgrimes * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 221541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 231541Srgrimes * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 241541Srgrimes * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 251541Srgrimes * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 261541Srgrimes * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 271541Srgrimes * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 281541Srgrimes * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 291541Srgrimes * THE POSSIBILITY OF SUCH DAMAGE. 301541Srgrimes */ 311541Srgrimes 321541Srgrimes#if 0 3314478Shsu#ifndef lint 3429683Sgibbsstatic char sccsid[] = "@(#)sctp.c 0.1 (Berkeley) 4/18/2007"; 351541Srgrimes#endif /* not lint */ 361541Srgrimes#endif 3718444Sbde 385052Sbde#include <sys/cdefs.h> 392165Spaul__FBSDID("$FreeBSD: stable/10/usr.bin/netstat/sctp.c 293307 2016-01-07 07:21:37Z markj $"); 4018444Sbde 4118444Sbde#include <sys/param.h> 4218444Sbde#include <sys/queue.h> 4318429Sbde#include <sys/types.h> 4418429Sbde#include <sys/socket.h> 451541Srgrimes#include <sys/socketvar.h> 461541Srgrimes#include <sys/sysctl.h> 471541Srgrimes#include <sys/protosw.h> 481541Srgrimes 491541Srgrimes#include <netinet/in.h> 501541Srgrimes#include <netinet/sctp.h> 511541Srgrimes#include <netinet/sctp_constants.h> 521541Srgrimes#include <arpa/inet.h> 531541Srgrimes 541541Srgrimes#include <err.h> 551541Srgrimes#include <errno.h> 561541Srgrimes#include <libutil.h> 571541Srgrimes#include <netdb.h> 581541Srgrimes#include <stdint.h> 594027Sphk#include <stdio.h> 601541Srgrimes#include <stdlib.h> 611541Srgrimes#include <string.h> 621541Srgrimes#include <unistd.h> 631541Srgrimes#include "netstat.h" 641541Srgrimes 651541Srgrimes#ifdef SCTP 661541Srgrimes 671541Srgrimesstatic void sctp_statesprint(uint32_t state); 681541Srgrimes 691541Srgrimes#define NETSTAT_SCTP_STATES_CLOSED 0x0 701541Srgrimes#define NETSTAT_SCTP_STATES_BOUND 0x1 711541Srgrimes#define NETSTAT_SCTP_STATES_LISTEN 0x2 7214478Shsu#define NETSTAT_SCTP_STATES_COOKIE_WAIT 0x3 731541Srgrimes#define NETSTAT_SCTP_STATES_COOKIE_ECHOED 0x4 741541Srgrimes#define NETSTAT_SCTP_STATES_ESTABLISHED 0x5 751541Srgrimes#define NETSTAT_SCTP_STATES_SHUTDOWN_SENT 0x6 761541Srgrimes#define NETSTAT_SCTP_STATES_SHUTDOWN_RECEIVED 0x7 775052Sbde#define NETSTAT_SCTP_STATES_SHUTDOWN_ACK_SENT 0x8 785052Sbde#define NETSTAT_SCTP_STATES_SHUTDOWN_PENDING 0x9 795052Sbde 801541Srgrimesconst char *sctpstates[] = { 811541Srgrimes "CLOSED", 821541Srgrimes "BOUND", 8314478Shsu "LISTEN", 8414478Shsu "COOKIE_WAIT", 8514478Shsu "COOKIE_ECHOED", 8614478Shsu "ESTABLISHED", 8714478Shsu "SHUTDOWN_SENT", 8814478Shsu "SHUTDOWN_RECEIVED", 891541Srgrimes "SHUTDOWN_ACK_SENT", 901541Srgrimes "SHUTDOWN_PENDING" 911541Srgrimes}; 921541Srgrimes 931541SrgrimesLIST_HEAD(xladdr_list, xladdr_entry) xladdr_head; 941541Srgrimesstruct xladdr_entry { 951541Srgrimes struct xsctp_laddr *xladdr; 961541Srgrimes LIST_ENTRY(xladdr_entry) xladdr_entries; 9714478Shsu}; 981541Srgrimes 991541SrgrimesLIST_HEAD(xraddr_list, xraddr_entry) xraddr_head; 1008876Srgrimesstruct xraddr_entry { 1011541Srgrimes struct xsctp_raddr *xraddr; 1021541Srgrimes LIST_ENTRY(xraddr_entry) xraddr_entries; 1031541Srgrimes}; 1048876Srgrimes 1058876Srgrimes/* 1061541Srgrimes * Construct an Internet address representation. 1071541Srgrimes * If numeric_addr has been supplied, give 1081541Srgrimes * numeric value, otherwise try for symbolic name. 1091541Srgrimes */ 11014478Shsu#ifdef INET 1111541Srgrimesstatic char * 11214478Shsuinetname(struct in_addr *inp) 11314478Shsu{ 11414478Shsu char *cp; 11514478Shsu static char line[MAXHOSTNAMELEN]; 11614478Shsu struct hostent *hp; 11714478Shsu struct netent *np; 11814478Shsu 1191541Srgrimes cp = 0; 12014478Shsu if (!numeric_addr && inp->s_addr != INADDR_ANY) { 12114478Shsu int net = inet_netof(*inp); 12214478Shsu int lna = inet_lnaof(*inp); 12314478Shsu 1241541Srgrimes if (lna == INADDR_ANY) { 12514478Shsu np = getnetbyaddr(net, AF_INET); 12614478Shsu if (np) 1271541Srgrimes cp = np->n_name; 12814478Shsu } 12914478Shsu if (cp == 0) { 1301541Srgrimes hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET); 13114478Shsu if (hp) { 1321541Srgrimes cp = hp->h_name; 1331541Srgrimes trimdomain(cp, strlen(cp)); 1341541Srgrimes } 1351541Srgrimes } 1361541Srgrimes } 13714478Shsu if (inp->s_addr == INADDR_ANY) 13814478Shsu strcpy(line, "*"); 13914478Shsu else if (cp) { 14014478Shsu strlcpy(line, cp, sizeof(line)); 14114478Shsu } else { 14214478Shsu inp->s_addr = ntohl(inp->s_addr); 14314478Shsu#define C(x) ((u_int)((x) & 0xff)) 14414478Shsu sprintf(line, "%u.%u.%u.%u", C(inp->s_addr >> 24), 14514478Shsu C(inp->s_addr >> 16), C(inp->s_addr >> 8), C(inp->s_addr)); 14614478Shsu inp->s_addr = htonl(inp->s_addr); 14714478Shsu } 14814478Shsu return (line); 1491541Srgrimes} 15014478Shsu#endif 15114478Shsu 15214478Shsu#ifdef INET6 15314478Shsustatic char ntop_buf[INET6_ADDRSTRLEN]; 15414478Shsu 15514478Shsustatic char * 15614478Shsuinet6name(struct in6_addr *in6p) 1571541Srgrimes{ 15814478Shsu char *cp; 1591541Srgrimes static char line[50]; 16014478Shsu struct hostent *hp; 16114478Shsu static char domain[MAXHOSTNAMELEN]; 16214478Shsu static int first = 1; 1631541Srgrimes 1641541Srgrimes if (first && !numeric_addr) { 16514478Shsu first = 0; 16614478Shsu if (gethostname(domain, MAXHOSTNAMELEN) == 0 && 16714478Shsu (cp = strchr(domain, '.'))) 1681541Srgrimes (void) strcpy(domain, cp + 1); 16914478Shsu else 17014478Shsu domain[0] = 0; 17114478Shsu } 17214478Shsu cp = 0; 17314478Shsu if (!numeric_addr && !IN6_IS_ADDR_UNSPECIFIED(in6p)) { 1741541Srgrimes hp = gethostbyaddr((char *)in6p, sizeof(*in6p), AF_INET6); 17514478Shsu if (hp) { 17614478Shsu if ((cp = strchr(hp->h_name, '.')) && 1771541Srgrimes !strcmp(cp + 1, domain)) 1781541Srgrimes *cp = 0; 1791541Srgrimes cp = hp->h_name; 1801541Srgrimes } 1811541Srgrimes } 1821541Srgrimes if (IN6_IS_ADDR_UNSPECIFIED(in6p)) 1831541Srgrimes strcpy(line, "*"); 1841541Srgrimes else if (cp) 1851541Srgrimes strcpy(line, cp); 1861541Srgrimes else 1871541Srgrimes sprintf(line, "%s", 1881541Srgrimes inet_ntop(AF_INET6, (void *)in6p, ntop_buf, 1891541Srgrimes sizeof(ntop_buf))); 1901541Srgrimes return (line); 1911541Srgrimes} 1921541Srgrimes#endif 1931541Srgrimes 1941541Srgrimesstatic void 1951541Srgrimessctp_print_address(union sctp_sockstore *address, int port, int num_port) 1961541Srgrimes{ 1971541Srgrimes struct servent *sp = 0; 1981541Srgrimes char line[80], *cp; 1991541Srgrimes int width; 2001541Srgrimes 2011541Srgrimes switch (address->sa.sa_family) { 2021541Srgrimes#ifdef INET 2031541Srgrimes case AF_INET: 2041541Srgrimes sprintf(line, "%.*s.", Wflag ? 39 : 16, inetname(&address->sin.sin_addr)); 20515571Sasami break; 2061541Srgrimes#endif 20716363Sasami#ifdef INET6 20816363Sasami case AF_INET6: 20916363Sasami sprintf(line, "%.*s.", Wflag ? 39 : 16, inet6name(&address->sin6.sin6_addr)); 21016363Sasami break; 2111541Srgrimes#endif 2121541Srgrimes default: 2131541Srgrimes sprintf(line, "%.*s.", Wflag ? 39 : 16, ""); 2141541Srgrimes break; 2151541Srgrimes } 2161541Srgrimes cp = strchr(line, '\0'); 2171541Srgrimes if (!num_port && port) 2181541Srgrimes sp = getservbyport((int)port, "sctp"); 2191541Srgrimes if (sp || port == 0) 2201541Srgrimes sprintf(cp, "%.15s ", sp ? sp->s_name : "*"); 2211541Srgrimes else 2221541Srgrimes sprintf(cp, "%d ", ntohs((u_short)port)); 2231541Srgrimes width = Wflag ? 45 : 22; 22415571Sasami printf("%-*.*s ", width, width, line); 22514478Shsu} 2261541Srgrimes 2271541Srgrimesstatic int 2281541Srgrimessctp_skip_xinpcb_ifneed(char *buf, const size_t buflen, size_t *offset) 2291541Srgrimes{ 2301541Srgrimes int exist_tcb = 0; 2311541Srgrimes struct xsctp_tcb *xstcb; 2321541Srgrimes struct xsctp_raddr *xraddr; 2331541Srgrimes struct xsctp_laddr *xladdr; 2341541Srgrimes 2351541Srgrimes while (*offset < buflen) { 2361541Srgrimes xladdr = (struct xsctp_laddr *)(buf + *offset); 2371541Srgrimes *offset += sizeof(struct xsctp_laddr); 2381541Srgrimes if (xladdr->last == 1) 2391541Srgrimes break; 2401541Srgrimes } 2411541Srgrimes 2421541Srgrimes while (*offset < buflen) { 2431541Srgrimes xstcb = (struct xsctp_tcb *)(buf + *offset); 2441541Srgrimes *offset += sizeof(struct xsctp_tcb); 2451541Srgrimes if (xstcb->last == 1) 2461541Srgrimes break; 2471541Srgrimes 2481541Srgrimes exist_tcb = 1; 2491541Srgrimes 2501541Srgrimes while (*offset < buflen) { 2511541Srgrimes xladdr = (struct xsctp_laddr *)(buf + *offset); 2521541Srgrimes *offset += sizeof(struct xsctp_laddr); 2531541Srgrimes if (xladdr->last == 1) 2541541Srgrimes break; 2551541Srgrimes } 2561541Srgrimes 2571541Srgrimes while (*offset < buflen) { 2581541Srgrimes xraddr = (struct xsctp_raddr *)(buf + *offset); 2591541Srgrimes *offset += sizeof(struct xsctp_raddr); 2601541Srgrimes if (xraddr->last == 1) 2611541Srgrimes break; 2621541Srgrimes } 2631541Srgrimes } 2641541Srgrimes 2651541Srgrimes /* 26614478Shsu * If Lflag is set, we don't care about the return value. 2671541Srgrimes */ 2681541Srgrimes if (Lflag) 2691541Srgrimes return 0; 2701541Srgrimes 2711541Srgrimes return exist_tcb; 2721541Srgrimes} 2731541Srgrimes 2741541Srgrimesstatic void 2751541Srgrimessctp_process_tcb(struct xsctp_tcb *xstcb, 2761541Srgrimes char *buf, const size_t buflen, size_t *offset, int *indent) 2771541Srgrimes{ 2781541Srgrimes int i, xl_total = 0, xr_total = 0, x_max; 2791541Srgrimes struct xsctp_raddr *xraddr; 2801541Srgrimes struct xsctp_laddr *xladdr; 2811541Srgrimes struct xladdr_entry *prev_xl = NULL, *xl = NULL, *xl_tmp; 2821541Srgrimes struct xraddr_entry *prev_xr = NULL, *xr = NULL, *xr_tmp; 2831541Srgrimes 2841541Srgrimes LIST_INIT(&xladdr_head); 2851541Srgrimes LIST_INIT(&xraddr_head); 2861541Srgrimes 2871541Srgrimes /* 2881541Srgrimes * Make `struct xladdr_list' list and `struct xraddr_list' list 2891541Srgrimes * to handle the address flexibly. 2901541Srgrimes */ 2911541Srgrimes while (*offset < buflen) { 2921541Srgrimes xladdr = (struct xsctp_laddr *)(buf + *offset); 2931541Srgrimes *offset += sizeof(struct xsctp_laddr); 2941541Srgrimes if (xladdr->last == 1) 2951541Srgrimes break; 2961541Srgrimes 2971541Srgrimes prev_xl = xl; 2981541Srgrimes xl = malloc(sizeof(struct xladdr_entry)); 2991541Srgrimes if (xl == NULL) { 3001541Srgrimes warnx("malloc %lu bytes", 3011541Srgrimes (u_long)sizeof(struct xladdr_entry)); 30214478Shsu goto out; 30314478Shsu } 3041541Srgrimes xl->xladdr = xladdr; 3051541Srgrimes if (prev_xl == NULL) 3061541Srgrimes LIST_INSERT_HEAD(&xladdr_head, xl, xladdr_entries); 3071541Srgrimes else 3081541Srgrimes LIST_INSERT_AFTER(prev_xl, xl, xladdr_entries); 3091541Srgrimes xl_total++; 3101541Srgrimes } 3111541Srgrimes 3121541Srgrimes while (*offset < buflen) { 3131541Srgrimes xraddr = (struct xsctp_raddr *)(buf + *offset); 31414478Shsu *offset += sizeof(struct xsctp_raddr); 31514478Shsu if (xraddr->last == 1) 3161541Srgrimes break; 3171541Srgrimes 3181541Srgrimes prev_xr = xr; 3191541Srgrimes xr = malloc(sizeof(struct xraddr_entry)); 3201541Srgrimes if (xr == NULL) { 3211541Srgrimes warnx("malloc %lu bytes", 3221549Srgrimes (u_long)sizeof(struct xraddr_entry)); 3231549Srgrimes goto out; 32416363Sasami } 32516363Sasami xr->xraddr = xraddr; 32616363Sasami if (prev_xr == NULL) 32716363Sasami LIST_INSERT_HEAD(&xraddr_head, xr, xraddr_entries); 32816363Sasami else 32916363Sasami LIST_INSERT_AFTER(prev_xr, xr, xraddr_entries); 33016363Sasami xr_total++; 33116363Sasami } 33216363Sasami 33316363Sasami /* 33416363Sasami * Let's print the address infos. 33516363Sasami */ 33616363Sasami xl = LIST_FIRST(&xladdr_head); 33716363Sasami xr = LIST_FIRST(&xraddr_head); 33816363Sasami x_max = (xl_total > xr_total) ? xl_total : xr_total; 33916363Sasami for (i = 0; i < x_max; i++) { 34016363Sasami if (((*indent == 0) && i > 0) || *indent > 0) 34116363Sasami printf("%-12s ", " "); 34216363Sasami 34316363Sasami if (xl != NULL) { 34416363Sasami sctp_print_address(&(xl->xladdr->address), 34516363Sasami htons(xstcb->local_port), numeric_port); 34616363Sasami } else { 34716363Sasami if (Wflag) { 34816363Sasami printf("%-45s ", " "); 34916363Sasami } else { 35016363Sasami printf("%-22s ", " "); 35116363Sasami } 3521549Srgrimes } 3531549Srgrimes 3541549Srgrimes if (xr != NULL && !Lflag) { 3553742Spaul sctp_print_address(&(xr->xraddr->address), 3561549Srgrimes htons(xstcb->remote_port), numeric_port); 3571549Srgrimes } 3581549Srgrimes 3591549Srgrimes if (xl != NULL) 3601549Srgrimes xl = LIST_NEXT(xl, xladdr_entries); 3611549Srgrimes if (xr != NULL) 3621549Srgrimes xr = LIST_NEXT(xr, xraddr_entries); 3631549Srgrimes 3641549Srgrimes if (i == 0 && !Lflag) 3651549Srgrimes sctp_statesprint(xstcb->state); 3661549Srgrimes 3671549Srgrimes if (i < x_max) 3681549Srgrimes putchar('\n'); 36916363Sasami } 3701549Srgrimes 3711549Srgrimesout: 3721549Srgrimes /* 3731549Srgrimes * Free the list which be used to handle the address. 3741541Srgrimes */ 3751541Srgrimes xl = LIST_FIRST(&xladdr_head); 3761541Srgrimes while (xl != NULL) { 3771541Srgrimes xl_tmp = LIST_NEXT(xl, xladdr_entries); 3781541Srgrimes free(xl); 3791541Srgrimes xl = xl_tmp; 3801541Srgrimes } 3811541Srgrimes 3821541Srgrimes xr = LIST_FIRST(&xraddr_head); 3831541Srgrimes while (xr != NULL) { 3841541Srgrimes xr_tmp = LIST_NEXT(xr, xraddr_entries); 3851541Srgrimes free(xr); 3861541Srgrimes xr = xr_tmp; 3871541Srgrimes } 3881541Srgrimes} 3891541Srgrimes 3901541Srgrimesstatic void 3911541Srgrimessctp_process_inpcb(struct xsctp_inpcb *xinpcb, 3928552Sdg char *buf, const size_t buflen, size_t *offset) 3931541Srgrimes{ 3945052Sbde int indent = 0, xladdr_total = 0, is_listening = 0; 3955052Sbde static int first = 1; 3965052Sbde const char *tname, *pname; 3975052Sbde struct xsctp_tcb *xstcb; 3985052Sbde struct xsctp_laddr *xladdr; 3995052Sbde size_t offset_laddr; 4008876Srgrimes int process_closed; 4015052Sbde 4025052Sbde if (xinpcb->maxqlen > 0) 4035052Sbde is_listening = 1; 4048193Sjulian 4058193Sjulian if (first) { 4068193Sjulian if (!Lflag) { 4078193Sjulian printf("Active SCTP associations"); 4088193Sjulian if (aflag) 4098193Sjulian printf(" (including servers)"); 4108193Sjulian } else 41121986Sdg printf("Current listen queue sizes (qlen/maxqlen)"); 4128193Sjulian putchar('\n'); 4138193Sjulian if (Lflag) 4145052Sbde printf("%-6.6s %-5.5s %-8.8s %-22.22s\n", 4155052Sbde "Proto", "Type", "Listen", "Local Address"); 4165052Sbde else 4175052Sbde if (Wflag) 4185052Sbde printf("%-6.6s %-5.5s %-45.45s %-45.45s %s\n", 4195052Sbde "Proto", "Type", 42021986Sdg "Local Address", "Foreign Address", 42121986Sdg "(state)"); 4221541Srgrimes else 4233940Sjkh printf("%-6.6s %-5.5s %-22.22s %-22.22s %s\n", 4244462Sbde "Proto", "Type", 42512478Sbde "Local Address", "Foreign Address", 42612478Sbde "(state)"); 4277090Sbde first = 0; 4287090Sbde } 4295052Sbde xladdr = (struct xsctp_laddr *)(buf + *offset); 4305052Sbde if (Lflag && !is_listening) { 4313940Sjkh sctp_skip_xinpcb_ifneed(buf, buflen, offset); 4325052Sbde return; 43318429Sbde } 43410823Sbde 43529683Sgibbs if (xinpcb->flags & SCTP_PCB_FLAGS_BOUND_V6) { 4365052Sbde /* Can't distinguish between sctp46 and sctp6 */ 4375052Sbde pname = "sctp46"; 43818429Sbde } else { 4395052Sbde pname = "sctp4"; 4403940Sjkh } 4415052Sbde 4425052Sbde if (xinpcb->flags & SCTP_PCB_FLAGS_TCPTYPE) 4435052Sbde tname = "1to1"; 4445052Sbde else if (xinpcb->flags & SCTP_PCB_FLAGS_UDPTYPE) 44518444Sbde tname = "1toN"; 4461541Srgrimes else 4471541Srgrimes tname = "????"; 4481541Srgrimes 4491541Srgrimes if (Lflag) { 4502165Spaul char buf1[9]; 4515052Sbde 452 snprintf(buf1, 9, "%hu/%hu", xinpcb->qlen, xinpcb->maxqlen); 453 printf("%-6.6s %-5.5s ", pname, tname); 454 printf("%-8.8s ", buf1); 455 } 456 457 offset_laddr = *offset; 458 process_closed = 0; 459retry: 460 while (*offset < buflen) { 461 xladdr = (struct xsctp_laddr *)(buf + *offset); 462 *offset += sizeof(struct xsctp_laddr); 463 if (xladdr->last) { 464 if (aflag && !Lflag && (xladdr_total == 0) && process_closed) { 465 printf("%-6.6s %-5.5s ", pname, tname); 466 if (Wflag) { 467 printf("%-91.91s CLOSED", " "); 468 } else { 469 printf("%-45.45s CLOSED", " "); 470 } 471 } 472 if (process_closed || is_listening) { 473 putchar('\n'); 474 } 475 break; 476 } 477 478 if (!Lflag && !is_listening && !process_closed) 479 continue; 480 481 if (xladdr_total == 0) { 482 printf("%-6.6s %-5.5s ", pname, tname); 483 } else { 484 putchar('\n'); 485 printf((Lflag) ? 486 "%-21.21s " : "%-12.12s ", " "); 487 } 488 sctp_print_address(&(xladdr->address), 489 htons(xinpcb->local_port), numeric_port); 490 if (aflag && !Lflag && xladdr_total == 0) { 491 if (Wflag) { 492 if (process_closed) { 493 printf("%-45.45s CLOSED", " "); 494 } else { 495 printf("%-45.45s LISTEN", " "); 496 } 497 } else { 498 if (process_closed) { 499 printf("%-22.22s CLOSED", " "); 500 } else { 501 printf("%-22.22s LISTEN", " "); 502 } 503 } 504 } 505 xladdr_total++; 506 } 507 508 xstcb = (struct xsctp_tcb *)(buf + *offset); 509 *offset += sizeof(struct xsctp_tcb); 510 if (aflag && (xladdr_total == 0) && xstcb->last && !process_closed) { 511 process_closed = 1; 512 *offset = offset_laddr; 513 goto retry; 514 } 515 while (xstcb->last == 0 && *offset < buflen) { 516 printf("%-6.6s %-5.5s ", pname, tname); 517 sctp_process_tcb(xstcb, buf, buflen, offset, &indent); 518 indent++; 519 xstcb = (struct xsctp_tcb *)(buf + *offset); 520 *offset += sizeof(struct xsctp_tcb); 521 } 522} 523 524/* 525 * Print a summary of SCTP connections related to an Internet 526 * protocol. 527 */ 528void 529sctp_protopr(u_long off __unused, 530 const char *name __unused, int af1 __unused, int proto) 531{ 532 char *buf; 533 const char *mibvar = "net.inet.sctp.assoclist"; 534 size_t offset = 0; 535 size_t len = 0; 536 struct xsctp_inpcb *xinpcb; 537 538 if (proto != IPPROTO_SCTP) 539 return; 540 541 if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) { 542 if (errno != ENOENT) 543 warn("sysctl: %s", mibvar); 544 return; 545 } 546 if ((buf = malloc(len)) == 0) { 547 warnx("malloc %lu bytes", (u_long)len); 548 return; 549 } 550 if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) { 551 warn("sysctl: %s", mibvar); 552 free(buf); 553 return; 554 } 555 556 xinpcb = (struct xsctp_inpcb *)(buf + offset); 557 offset += sizeof(struct xsctp_inpcb); 558 while (xinpcb->last == 0 && offset < len) { 559 sctp_process_inpcb(xinpcb, buf, (const size_t)len, 560 &offset); 561 562 xinpcb = (struct xsctp_inpcb *)(buf + offset); 563 offset += sizeof(struct xsctp_inpcb); 564 } 565 566 free(buf); 567} 568 569static void 570sctp_statesprint(uint32_t state) 571{ 572 int idx; 573 574 switch (state) { 575 case SCTP_STATE_COOKIE_WAIT: 576 idx = NETSTAT_SCTP_STATES_COOKIE_WAIT; 577 break; 578 case SCTP_STATE_COOKIE_ECHOED: 579 idx = NETSTAT_SCTP_STATES_COOKIE_ECHOED; 580 break; 581 case SCTP_STATE_OPEN: 582 idx = NETSTAT_SCTP_STATES_ESTABLISHED; 583 break; 584 case SCTP_STATE_SHUTDOWN_SENT: 585 idx = NETSTAT_SCTP_STATES_SHUTDOWN_SENT; 586 break; 587 case SCTP_STATE_SHUTDOWN_RECEIVED: 588 idx = NETSTAT_SCTP_STATES_SHUTDOWN_RECEIVED; 589 break; 590 case SCTP_STATE_SHUTDOWN_ACK_SENT: 591 idx = NETSTAT_SCTP_STATES_SHUTDOWN_ACK_SENT; 592 break; 593 case SCTP_STATE_SHUTDOWN_PENDING: 594 idx = NETSTAT_SCTP_STATES_SHUTDOWN_PENDING; 595 break; 596 default: 597 printf("UNKNOWN 0x%08x", state); 598 return; 599 } 600 601 printf("%s", sctpstates[idx]); 602} 603 604/* 605 * Dump SCTP statistics structure. 606 */ 607void 608sctp_stats(u_long off, const char *name, int af1 __unused, int proto __unused) 609{ 610 struct sctpstat sctpstat; 611 612 if (fetch_stats("net.inet.sctp.stats", off, &sctpstat, 613 sizeof(sctpstat), kread) != 0) 614 return; 615 616 printf ("%s:\n", name); 617 618#define p(f, m) if (sctpstat.f || sflag <= 1) \ 619 printf(m, (uintmax_t)sctpstat.f, plural(sctpstat.f)) 620#define p1a(f, m) if (sctpstat.f || sflag <= 1) \ 621 printf(m, (uintmax_t)sctpstat.f) 622 623 /* 624 * input statistics 625 */ 626 p(sctps_recvpackets, "\t%ju input packet%s\n"); 627 p(sctps_recvdatagrams, "\t\t%ju datagram%s\n"); 628 p(sctps_recvpktwithdata, "\t\t%ju packet%s that had data\n"); 629 p(sctps_recvsacks, "\t\t%ju input SACK chunk%s\n"); 630 p(sctps_recvdata, "\t\t%ju input DATA chunk%s\n"); 631 p(sctps_recvdupdata, "\t\t%ju duplicate DATA chunk%s\n"); 632 p(sctps_recvheartbeat, "\t\t%ju input HB chunk%s\n"); 633 p(sctps_recvheartbeatack, "\t\t%ju HB-ACK chunk%s\n"); 634 p(sctps_recvecne, "\t\t%ju input ECNE chunk%s\n"); 635 p(sctps_recvauth, "\t\t%ju input AUTH chunk%s\n"); 636 p(sctps_recvauthmissing, "\t\t%ju chunk%s missing AUTH\n"); 637 p(sctps_recvivalhmacid, "\t\t%ju invalid HMAC id%s received\n"); 638 p(sctps_recvivalkeyid, "\t\t%ju invalid secret id%s received\n"); 639 p1a(sctps_recvauthfailed, "\t\t%ju auth failed\n"); 640 p1a(sctps_recvexpress, "\t\t%ju fast path receives all one chunk\n"); 641 p1a(sctps_recvexpressm, "\t\t%ju fast path multi-part data\n"); 642 643 /* 644 * output statistics 645 */ 646 p(sctps_sendpackets, "\t%ju output packet%s\n"); 647 p(sctps_sendsacks, "\t\t%ju output SACK%s\n"); 648 p(sctps_senddata, "\t\t%ju output DATA chunk%s\n"); 649 p(sctps_sendretransdata, "\t\t%ju retransmitted DATA chunk%s\n"); 650 p(sctps_sendfastretrans, "\t\t%ju fast retransmitted DATA chunk%s\n"); 651 p(sctps_sendmultfastretrans, "\t\t%ju FR'%s that happened more " 652 "than once to same chunk\n"); 653 p(sctps_sendheartbeat, "\t\t%ju output HB chunk%s\n"); 654 p(sctps_sendecne, "\t\t%ju output ECNE chunk%s\n"); 655 p(sctps_sendauth, "\t\t%ju output AUTH chunk%s\n"); 656 p1a(sctps_senderrors, "\t\t%ju ip_output error counter\n"); 657 658 /* 659 * PCKDROPREP statistics 660 */ 661 printf("\tPacket drop statistics:\n"); 662 p1a(sctps_pdrpfmbox, "\t\t%ju from middle box\n"); 663 p1a(sctps_pdrpfehos, "\t\t%ju from end host\n"); 664 p1a(sctps_pdrpmbda, "\t\t%ju with data\n"); 665 p1a(sctps_pdrpmbct, "\t\t%ju non-data, non-endhost\n"); 666 p1a(sctps_pdrpbwrpt, "\t\t%ju non-endhost, bandwidth rep only\n"); 667 p1a(sctps_pdrpcrupt, "\t\t%ju not enough for chunk header\n"); 668 p1a(sctps_pdrpnedat, "\t\t%ju not enough data to confirm\n"); 669 p1a(sctps_pdrppdbrk, "\t\t%ju where process_chunk_drop said break\n"); 670 p1a(sctps_pdrptsnnf, "\t\t%ju failed to find TSN\n"); 671 p1a(sctps_pdrpdnfnd, "\t\t%ju attempt reverse TSN lookup\n"); 672 p1a(sctps_pdrpdiwnp, "\t\t%ju e-host confirms zero-rwnd\n"); 673 p1a(sctps_pdrpdizrw, "\t\t%ju midbox confirms no space\n"); 674 p1a(sctps_pdrpbadd, "\t\t%ju data did not match TSN\n"); 675 p(sctps_pdrpmark, "\t\t%ju TSN'%s marked for Fast Retran\n"); 676 677 /* 678 * Timeouts 679 */ 680 printf("\tTimeouts:\n"); 681 p(sctps_timoiterator, "\t\t%ju iterator timer%s fired\n"); 682 p(sctps_timodata, "\t\t%ju T3 data time out%s\n"); 683 p(sctps_timowindowprobe, "\t\t%ju window probe (T3) timer%s fired\n"); 684 p(sctps_timoinit, "\t\t%ju INIT timer%s fired\n"); 685 p(sctps_timosack, "\t\t%ju sack timer%s fired\n"); 686 p(sctps_timoshutdown, "\t\t%ju shutdown timer%s fired\n"); 687 p(sctps_timoheartbeat, "\t\t%ju heartbeat timer%s fired\n"); 688 p1a(sctps_timocookie, "\t\t%ju a cookie timeout fired\n"); 689 p1a(sctps_timosecret, "\t\t%ju an endpoint changed its cookie" 690 "secret\n"); 691 p(sctps_timopathmtu, "\t\t%ju PMTU timer%s fired\n"); 692 p(sctps_timoshutdownack, "\t\t%ju shutdown ack timer%s fired\n"); 693 p(sctps_timoshutdownguard, "\t\t%ju shutdown guard timer%s fired\n"); 694 p(sctps_timostrmrst, "\t\t%ju stream reset timer%s fired\n"); 695 p(sctps_timoearlyfr, "\t\t%ju early FR timer%s fired\n"); 696 p1a(sctps_timoasconf, "\t\t%ju an asconf timer fired\n"); 697 p1a(sctps_timoautoclose, "\t\t%ju auto close timer fired\n"); 698 p(sctps_timoassockill, "\t\t%ju asoc free timer%s expired\n"); 699 p(sctps_timoinpkill, "\t\t%ju inp free timer%s expired\n"); 700 701#if 0 702 /* 703 * Early fast retransmission counters 704 */ 705 p(sctps_earlyfrstart, "\t%ju TODO:sctps_earlyfrstart\n"); 706 p(sctps_earlyfrstop, "\t%ju TODO:sctps_earlyfrstop\n"); 707 p(sctps_earlyfrmrkretrans, "\t%ju TODO:sctps_earlyfrmrkretrans\n"); 708 p(sctps_earlyfrstpout, "\t%ju TODO:sctps_earlyfrstpout\n"); 709 p(sctps_earlyfrstpidsck1, "\t%ju TODO:sctps_earlyfrstpidsck1\n"); 710 p(sctps_earlyfrstpidsck2, "\t%ju TODO:sctps_earlyfrstpidsck2\n"); 711 p(sctps_earlyfrstpidsck3, "\t%ju TODO:sctps_earlyfrstpidsck3\n"); 712 p(sctps_earlyfrstpidsck4, "\t%ju TODO:sctps_earlyfrstpidsck4\n"); 713 p(sctps_earlyfrstrid, "\t%ju TODO:sctps_earlyfrstrid\n"); 714 p(sctps_earlyfrstrout, "\t%ju TODO:sctps_earlyfrstrout\n"); 715 p(sctps_earlyfrstrtmr, "\t%ju TODO:sctps_earlyfrstrtmr\n"); 716#endif 717 718 /* 719 * Others 720 */ 721 p1a(sctps_hdrops, "\t%ju packet shorter than header\n"); 722 p1a(sctps_badsum, "\t%ju checksum error\n"); 723 p1a(sctps_noport, "\t%ju no endpoint for port\n"); 724 p1a(sctps_badvtag, "\t%ju bad v-tag\n"); 725 p1a(sctps_badsid, "\t%ju bad SID\n"); 726 p1a(sctps_nomem, "\t%ju no memory\n"); 727 p1a(sctps_fastretransinrtt, "\t%ju number of multiple FR in a RTT " 728 "window\n"); 729#if 0 730 p(sctps_markedretrans, "\t%ju TODO:sctps_markedretrans\n"); 731#endif 732 p1a(sctps_naglesent, "\t%ju RFC813 allowed sending\n"); 733 p1a(sctps_naglequeued, "\t%ju RFC813 does not allow sending\n"); 734 p1a(sctps_maxburstqueued, "\t%ju times max burst prohibited sending\n"); 735 p1a(sctps_ifnomemqueued, "\t%ju look ahead tells us no memory in " 736 "interface\n"); 737 p(sctps_windowprobed, "\t%ju number%s of window probes sent\n"); 738 p(sctps_lowlevelerr, "\t%ju time%s an output error to clamp " 739 "down on next user send\n"); 740 p(sctps_lowlevelerrusr, "\t%ju time%s sctp_senderrors were " 741 "caused from a user\n"); 742 p(sctps_datadropchklmt, "\t%ju number of in data drop%s due to " 743 "chunk limit reached\n"); 744 p(sctps_datadroprwnd, "\t%ju number of in data drop%s due to rwnd " 745 "limit reached\n"); 746 p(sctps_ecnereducedcwnd, "\t%ju time%s a ECN reduced " 747 "the cwnd\n"); 748 p1a(sctps_vtagexpress, "\t%ju used express lookup via vtag\n"); 749 p1a(sctps_vtagbogus, "\t%ju collision in express lookup\n"); 750 p(sctps_primary_randry, "\t%ju time%s the sender ran dry " 751 "of user data on primary\n"); 752 p1a(sctps_cmt_randry, "\t%ju same for above\n"); 753 p(sctps_slowpath_sack, "\t%ju sack%s the slow way\n"); 754 p(sctps_wu_sacks_sent, "\t%ju window update only sack%s sent\n"); 755 p(sctps_sends_with_flags, "\t%ju send%s with sinfo_flags !=0\n"); 756 p(sctps_sends_with_unord, "\t%ju unordered send%s\n"); 757 p(sctps_sends_with_eof, "\t%ju send%s with EOF flag set\n"); 758 p(sctps_sends_with_abort, "\t%ju send%s with ABORT flag set\n"); 759 p(sctps_protocol_drain_calls, "\t%ju time%s protocol drain called\n"); 760 p(sctps_protocol_drains_done, "\t%ju time%s we did a protocol " 761 "drain\n"); 762 p(sctps_read_peeks, "\t%ju time%s recv was called with peek\n"); 763 p(sctps_cached_chk, "\t%ju cached chunk%s used\n"); 764 p1a(sctps_cached_strmoq, "\t%ju cached stream oq's used\n"); 765 p(sctps_left_abandon, "\t%ju unread message%s abandonded by close\n"); 766 p1a(sctps_send_burst_avoid, "\t%ju send burst avoidance, already " 767 "max burst inflight to net\n"); 768 p1a(sctps_send_cwnd_avoid, "\t%ju send cwnd full avoidance, already " 769 "max burst inflight to net\n"); 770 p(sctps_fwdtsn_map_over, "\t%ju number of map array over-run%s via " 771 "fwd-tsn's\n"); 772 773#undef p 774#undef p1a 775} 776 777#endif /* SCTP */ 778