netstat.c revision 164678
11590Srgrimes/*- 21590Srgrimes * Copyright (c) 1980, 1992, 1993 31590Srgrimes * The Regents of the University of California. All rights reserved. 41590Srgrimes * 51590Srgrimes * Redistribution and use in source and binary forms, with or without 61590Srgrimes * modification, are permitted provided that the following conditions 71590Srgrimes * are met: 81590Srgrimes * 1. Redistributions of source code must retain the above copyright 91590Srgrimes * notice, this list of conditions and the following disclaimer. 101590Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111590Srgrimes * notice, this list of conditions and the following disclaimer in the 121590Srgrimes * documentation and/or other materials provided with the distribution. 131590Srgrimes * 3. All advertising materials mentioning features or use of this software 141590Srgrimes * must display the following acknowledgement: 151590Srgrimes * This product includes software developed by the University of 161590Srgrimes * California, Berkeley and its contributors. 171590Srgrimes * 4. Neither the name of the University nor the names of its contributors 181590Srgrimes * may be used to endorse or promote products derived from this software 191590Srgrimes * without specific prior written permission. 201590Srgrimes * 211590Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221590Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231590Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241590Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251590Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261590Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271590Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281590Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291590Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301590Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311590Srgrimes * SUCH DAMAGE. 321590Srgrimes */ 331590Srgrimes 3487715Smarkm#include <sys/cdefs.h> 351590Srgrimes 3687715Smarkm__FBSDID("$FreeBSD: head/usr.bin/systat/netstat.c 164678 2006-11-27 17:01:31Z yar $"); 3787715Smarkm 3887715Smarkm#ifdef lint 3987715Smarkmstatic const char sccsid[] = "@(#)netstat.c 8.1 (Berkeley) 6/6/93"; 4087715Smarkm#endif 4187715Smarkm 421590Srgrimes/* 431590Srgrimes * netstat 441590Srgrimes */ 451590Srgrimes#include <sys/param.h> 4614543Sdg#include <sys/queue.h> 471590Srgrimes#include <sys/socket.h> 481590Srgrimes#include <sys/socketvar.h> 491590Srgrimes#include <sys/protosw.h> 501590Srgrimes 511590Srgrimes#include <netinet/in.h> 5236916Speter#include <arpa/inet.h> 531590Srgrimes#include <net/route.h> 541590Srgrimes#include <netinet/in_systm.h> 551590Srgrimes#include <netinet/ip.h> 56118318Sdwmalone#ifdef INET6 57118318Sdwmalone#include <netinet/ip6.h> 58118318Sdwmalone#endif 591590Srgrimes#include <netinet/in_pcb.h> 601590Srgrimes#include <netinet/ip_icmp.h> 611590Srgrimes#include <netinet/icmp_var.h> 621590Srgrimes#include <netinet/ip_var.h> 631590Srgrimes#include <netinet/tcp.h> 641590Srgrimes#include <netinet/tcpip.h> 651590Srgrimes#include <netinet/tcp_seq.h> 6674671Stmm#include <netinet/tcp_var.h> 671590Srgrimes#define TCPSTATES 681590Srgrimes#include <netinet/tcp_fsm.h> 691590Srgrimes#include <netinet/tcp_timer.h> 701590Srgrimes#include <netinet/tcp_var.h> 711590Srgrimes#include <netinet/tcp_debug.h> 721590Srgrimes#include <netinet/udp.h> 731590Srgrimes#include <netinet/udp_var.h> 741590Srgrimes 751590Srgrimes#include <netdb.h> 7687715Smarkm#include <nlist.h> 7787715Smarkm#include <paths.h> 781590Srgrimes#include <stdlib.h> 791590Srgrimes#include <string.h> 8087715Smarkm 811590Srgrimes#include "systat.h" 821590Srgrimes#include "extern.h" 831590Srgrimes 8492922Simpstatic struct netinfo *enter(struct inpcb *, int, const char *); 8592922Simpstatic void enter_kvm(struct inpcb *, struct socket *, int, const char *); 8692922Simpstatic void enter_sysctl(struct inpcb *, struct xsocket *, int, const char *); 8792922Simpstatic void fetchnetstat_kvm(void); 8892922Simpstatic void fetchnetstat_sysctl(void); 89142093Sumestatic char *inetname(struct sockaddr *); 90142093Sumestatic void inetprint(struct sockaddr *, const char *); 911590Srgrimes 921590Srgrimes#define streq(a,b) (strcmp(a,b)==0) 9350635Speter#define YMAX(w) ((w)->_maxy-1) 941590Srgrimes 951590SrgrimesWINDOW * 961590Srgrimesopennetstat() 971590Srgrimes{ 981590Srgrimes sethostent(1); 991590Srgrimes setnetent(1); 100158160Sbde return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0)); 1011590Srgrimes} 1021590Srgrimes 1031590Srgrimesstruct netinfo { 10470523Sphk TAILQ_ENTRY(netinfo) chain; 1051590Srgrimes short ni_line; /* line on screen */ 1061590Srgrimes short ni_seen; /* 0 when not present in list */ 1071590Srgrimes short ni_flags; 1081590Srgrimes#define NIF_LACHG 0x1 /* local address changed */ 1091590Srgrimes#define NIF_FACHG 0x2 /* foreign address changed */ 1101590Srgrimes short ni_state; /* tcp state */ 11187715Smarkm const char *ni_proto; /* protocol */ 112142093Sume struct sockaddr_storage ni_lsa; /* local address */ 113142093Sume struct sockaddr_storage ni_fsa; /* foreign address */ 114100591Sjdp u_int ni_rcvcc; /* rcv buffer character count */ 115100591Sjdp u_int ni_sndcc; /* snd buffer character count */ 1161590Srgrimes}; 1171590Srgrimes 11870523SphkTAILQ_HEAD(netinfohead, netinfo) netcb = TAILQ_HEAD_INITIALIZER(netcb); 1191590Srgrimes 1201590Srgrimesstatic int aflag = 0; 1211590Srgrimesstatic int nflag = 0; 1221590Srgrimesstatic int lastrow = 1; 1231590Srgrimes 1241590Srgrimesvoid 1251590Srgrimesclosenetstat(w) 1261590Srgrimes WINDOW *w; 1271590Srgrimes{ 12887715Smarkm struct netinfo *p; 1291590Srgrimes 1301590Srgrimes endhostent(); 1311590Srgrimes endnetent(); 13270526Sphk TAILQ_FOREACH(p, &netcb, chain) { 1331590Srgrimes if (p->ni_line != -1) 1341590Srgrimes lastrow--; 1351590Srgrimes p->ni_line = -1; 1361590Srgrimes } 1371590Srgrimes if (w != NULL) { 1381590Srgrimes wclear(w); 1391590Srgrimes wrefresh(w); 1401590Srgrimes delwin(w); 1411590Srgrimes } 1421590Srgrimes} 1431590Srgrimes 14487715Smarkmstatic const char *miblist[] = { 14574671Stmm "net.inet.tcp.pcblist", 146158161Sbde "net.inet.udp.pcblist" 14774671Stmm}; 14874671Stmm 14974671Stmmstruct nlist namelist[] = { 1501590Srgrimes#define X_TCB 0 15174671Stmm { "tcb" }, 1521590Srgrimes#define X_UDB 1 15374671Stmm { "udb" }, 1541590Srgrimes { "" }, 1551590Srgrimes}; 1561590Srgrimes 1571590Srgrimesint 1581590Srgrimesinitnetstat() 1591590Srgrimes{ 1601590Srgrimes protos = TCP|UDP; 1611590Srgrimes return(1); 1621590Srgrimes} 1631590Srgrimes 1641590Srgrimesvoid 1651590Srgrimesfetchnetstat() 1661590Srgrimes{ 16774671Stmm if (use_kvm) 16874671Stmm fetchnetstat_kvm(); 16974671Stmm else 17074671Stmm fetchnetstat_sysctl(); 17174671Stmm} 17274671Stmm 17374671Stmmstatic void 17474671Stmmfetchnetstat_kvm() 17574671Stmm{ 17687715Smarkm struct inpcb *next; 17787715Smarkm struct netinfo *p; 1787715Sdg struct inpcbhead head; 1791590Srgrimes struct inpcb inpcb; 1801590Srgrimes struct socket sockb; 1811590Srgrimes struct tcpcb tcpcb; 1821590Srgrimes void *off; 1831590Srgrimes int istcp; 1841590Srgrimes 1851590Srgrimes if (namelist[X_TCB].n_value == 0) 1861590Srgrimes return; 18770523Sphk TAILQ_FOREACH(p, &netcb, chain) 1881590Srgrimes p->ni_seen = 0; 1891590Srgrimes if (protos&TCP) { 1908874Srgrimes off = NPTR(X_TCB); 1911590Srgrimes istcp = 1; 1921590Srgrimes } 1931590Srgrimes else if (protos&UDP) { 1948874Srgrimes off = NPTR(X_UDB); 1951590Srgrimes istcp = 0; 1961590Srgrimes } 1971590Srgrimes else { 1981590Srgrimes error("No protocols to display"); 1991590Srgrimes return; 2001590Srgrimes } 2011590Srgrimesagain: 2027715Sdg KREAD(off, &head, sizeof (struct inpcbhead)); 20370523Sphk LIST_FOREACH(next, &head, inp_list) { 2041590Srgrimes KREAD(next, &inpcb, sizeof (inpcb)); 20570526Sphk next = &inpcb; 206142093Sume if (!aflag) { 207142093Sume if (inpcb.inp_vflag & INP_IPV4) { 208142093Sume if (inet_lnaof(inpcb.inp_laddr) == INADDR_ANY) 209142093Sume continue; 210142093Sume } 211142093Sume#ifdef INET6 212142093Sume else if (inpcb.inp_vflag & INP_IPV6) { 213142093Sume if (memcmp(&inpcb.in6p_laddr, 214142093Sume &in6addr_any, sizeof(in6addr_any)) == 0) 215142093Sume continue; 216142093Sume } 217142093Sume#endif 218142093Sume } 2191590Srgrimes if (nhosts && !checkhost(&inpcb)) 2201590Srgrimes continue; 2211590Srgrimes if (nports && !checkport(&inpcb)) 2221590Srgrimes continue; 2231590Srgrimes if (istcp) { 224123800Ssilby if (inpcb.inp_vflag & INP_TIMEWAIT) { 225123800Ssilby bzero(&sockb, sizeof(sockb)); 226123800Ssilby enter_kvm(&inpcb, &sockb, TCPS_TIME_WAIT, 227123800Ssilby "tcp"); 228123800Ssilby } else { 229123800Ssilby KREAD(inpcb.inp_socket, &sockb, 230123800Ssilby sizeof (sockb)); 231123800Ssilby KREAD(inpcb.inp_ppcb, &tcpcb, sizeof (tcpcb)); 232123800Ssilby enter_kvm(&inpcb, &sockb, tcpcb.t_state, 233123800Ssilby "tcp"); 234123800Ssilby } 2351590Srgrimes } else 23674671Stmm enter_kvm(&inpcb, &sockb, 0, "udp"); 2371590Srgrimes } 2381590Srgrimes if (istcp && (protos&UDP)) { 2391590Srgrimes istcp = 0; 2401590Srgrimes off = NPTR(X_UDB); 2411590Srgrimes goto again; 2421590Srgrimes } 2431590Srgrimes} 2441590Srgrimes 2451590Srgrimesstatic void 24674671Stmmfetchnetstat_sysctl() 24774671Stmm{ 24887715Smarkm struct netinfo *p; 24974671Stmm int idx; 25074671Stmm struct xinpgen *inpg; 25174671Stmm char *cur, *end; 25274671Stmm struct inpcb *inpcb; 25374671Stmm struct xinpcb *xip; 25474671Stmm struct xtcpcb *xtp; 25574671Stmm int plen; 25674671Stmm size_t lsz; 25774671Stmm 25874671Stmm TAILQ_FOREACH(p, &netcb, chain) 25974671Stmm p->ni_seen = 0; 26074671Stmm if (protos&TCP) { 26174671Stmm idx = 0; 26274671Stmm } else if (protos&UDP) { 26374671Stmm idx = 1; 26474671Stmm } else { 26574671Stmm error("No protocols to display"); 26674671Stmm return; 26774671Stmm } 26874671Stmm 26974671Stmm for (;idx < 2; idx++) { 27074671Stmm if (idx == 1 && !(protos&UDP)) 27174671Stmm break; 27274671Stmm inpg = (struct xinpgen *)sysctl_dynread(miblist[idx], &lsz); 27374671Stmm if (inpg == NULL) { 27474671Stmm error("sysctl(%s...) failed", miblist[idx]); 27574671Stmm continue; 27674671Stmm } 277158161Sbde /* 27874671Stmm * We currently do no require a consistent pcb list. 279158161Sbde * Try to be robust in case of struct size changes 28074671Stmm */ 28174671Stmm cur = ((char *)inpg) + inpg->xig_len; 28274671Stmm /* There is also a trailing struct xinpgen */ 28374671Stmm end = ((char *)inpg) + lsz - inpg->xig_len; 28474671Stmm if (end <= cur) { 28574671Stmm free(inpg); 28674671Stmm continue; 28774671Stmm } 28874671Stmm if (idx == 0) { /* TCP */ 28974671Stmm xtp = (struct xtcpcb *)cur; 29074671Stmm plen = xtp->xt_len; 29174671Stmm } else { 29274671Stmm xip = (struct xinpcb *)cur; 29374671Stmm plen = xip->xi_len; 29474671Stmm } 29574671Stmm while (cur + plen <= end) { 29674671Stmm if (idx == 0) { /* TCP */ 29774671Stmm xtp = (struct xtcpcb *)cur; 29874671Stmm inpcb = &xtp->xt_inp; 29974671Stmm } else { 30074671Stmm xip = (struct xinpcb *)cur; 30174671Stmm inpcb = &xip->xi_inp; 30274671Stmm } 30374671Stmm cur += plen; 30474671Stmm 305142093Sume if (!aflag) { 306142093Sume if (inpcb->inp_vflag & INP_IPV4) { 307142093Sume if (inet_lnaof(inpcb->inp_laddr) == 308142093Sume INADDR_ANY) 309142093Sume continue; 310142093Sume } 311142093Sume#ifdef INET6 312142093Sume else if (inpcb->inp_vflag & INP_IPV6) { 313142093Sume if (memcmp(&inpcb->in6p_laddr, 314142093Sume &in6addr_any, sizeof(in6addr_any)) 315142093Sume == 0) 316142093Sume continue; 317142093Sume } 318142093Sume#endif 319142093Sume } 32074671Stmm if (nhosts && !checkhost(inpcb)) 32174671Stmm continue; 32274671Stmm if (nports && !checkport(inpcb)) 32374671Stmm continue; 32474671Stmm if (idx == 0) /* TCP */ 325158161Sbde enter_sysctl(inpcb, &xtp->xt_socket, 32674671Stmm xtp->xt_tp.t_state, "tcp"); 32774671Stmm else /* UDP */ 32874671Stmm enter_sysctl(inpcb, &xip->xi_socket, 0, "udp"); 32974671Stmm } 33074671Stmm free(inpg); 33174671Stmm } 33274671Stmm} 33374671Stmm 33474671Stmmstatic void 33574671Stmmenter_kvm(inp, so, state, proto) 33687715Smarkm struct inpcb *inp; 33787715Smarkm struct socket *so; 3381590Srgrimes int state; 33987715Smarkm const char *proto; 3401590Srgrimes{ 34187715Smarkm struct netinfo *p; 3421590Srgrimes 34374671Stmm if ((p = enter(inp, state, proto)) != NULL) { 34474671Stmm p->ni_rcvcc = so->so_rcv.sb_cc; 34574671Stmm p->ni_sndcc = so->so_snd.sb_cc; 34674671Stmm } 34774671Stmm} 34874671Stmm 34974671Stmmstatic void 35074671Stmmenter_sysctl(inp, so, state, proto) 35187715Smarkm struct inpcb *inp; 35287715Smarkm struct xsocket *so; 35374671Stmm int state; 35487715Smarkm const char *proto; 35574671Stmm{ 35687715Smarkm struct netinfo *p; 35774671Stmm 35874671Stmm if ((p = enter(inp, state, proto)) != NULL) { 35974671Stmm p->ni_rcvcc = so->so_rcv.sb_cc; 36074671Stmm p->ni_sndcc = so->so_snd.sb_cc; 36174671Stmm } 36274671Stmm} 36374671Stmm 36474671Stmm 36574671Stmmstatic struct netinfo * 36674671Stmmenter(inp, state, proto) 36787715Smarkm struct inpcb *inp; 36874671Stmm int state; 36987715Smarkm const char *proto; 37074671Stmm{ 37187715Smarkm struct netinfo *p; 372142093Sume struct sockaddr_storage lsa, fsa; 373142093Sume struct sockaddr_in *sa4; 374142093Sume#ifdef INET6 375142093Sume struct sockaddr_in6 *sa6; 376142093Sume#endif 37774671Stmm 378142093Sume memset(&lsa, 0, sizeof(lsa)); 379142093Sume memset(&fsa, 0, sizeof(fsa)); 380142093Sume if (inp->inp_vflag & INP_IPV4) { 381142093Sume sa4 = (struct sockaddr_in *)&lsa; 382142093Sume sa4->sin_addr = inp->inp_laddr; 383142093Sume sa4->sin_port = inp->inp_lport; 384142093Sume sa4->sin_family = AF_INET; 385142093Sume sa4->sin_len = sizeof(struct sockaddr_in); 386142093Sume 387142093Sume sa4 = (struct sockaddr_in *)&fsa; 388142093Sume sa4->sin_addr = inp->inp_faddr; 389142093Sume sa4->sin_port = inp->inp_fport; 390142093Sume sa4->sin_family = AF_INET; 391142093Sume sa4->sin_len = sizeof(struct sockaddr_in); 392142093Sume } 393142093Sume#ifdef INET6 394142093Sume else if (inp->inp_vflag & INP_IPV6) { 395142093Sume sa6 = (struct sockaddr_in6 *)&lsa; 396142093Sume memcpy(&sa6->sin6_addr, &inp->in6p_laddr, 397142093Sume sizeof(struct in6_addr)); 398142093Sume sa6->sin6_port = inp->inp_lport; 399142093Sume sa6->sin6_family = AF_INET6; 400142093Sume sa6->sin6_len = sizeof(struct sockaddr_in6); 401142093Sume 402142093Sume sa6 = (struct sockaddr_in6 *)&fsa; 403142093Sume memcpy(&sa6->sin6_addr, &inp->in6p_faddr, 404142093Sume sizeof(struct in6_addr)); 405142093Sume sa6->sin6_port = inp->inp_fport; 406142093Sume sa6->sin6_family = AF_INET6; 407142093Sume sa6->sin6_len = sizeof(struct sockaddr_in6); 408142093Sume } 409142093Sume#endif 410142095Sume else 411142093Sume return NULL; 412142093Sume 4131590Srgrimes /* 4141590Srgrimes * Only take exact matches, any sockets with 4151590Srgrimes * previously unbound addresses will be deleted 4161590Srgrimes * below in the display routine because they 4171590Srgrimes * will appear as ``not seen'' in the kernel 4181590Srgrimes * data structures. 4191590Srgrimes */ 42070523Sphk TAILQ_FOREACH(p, &netcb, chain) { 4211590Srgrimes if (!streq(proto, p->ni_proto)) 4221590Srgrimes continue; 423142093Sume if (p->ni_lsa.ss_family != lsa.ss_family || 424142093Sume memcmp(&p->ni_lsa, &lsa, lsa.ss_len) != 0) 4251590Srgrimes continue; 426142093Sume if (p->ni_fsa.ss_family == fsa.ss_family && 427142093Sume memcmp(&p->ni_fsa, &fsa, fsa.ss_len) == 0) 4281590Srgrimes break; 4291590Srgrimes } 43070523Sphk if (p == NULL) { 4311590Srgrimes if ((p = malloc(sizeof(*p))) == NULL) { 4321590Srgrimes error("Out of memory"); 43374671Stmm return NULL; 4341590Srgrimes } 43570523Sphk TAILQ_INSERT_HEAD(&netcb, p, chain); 4361590Srgrimes p->ni_line = -1; 437142093Sume memcpy(&p->ni_lsa, &lsa, lsa.ss_len); 438142093Sume memcpy(&p->ni_fsa, &fsa, fsa.ss_len); 43987715Smarkm p->ni_proto = strdup(proto); 4401590Srgrimes p->ni_flags = NIF_LACHG|NIF_FACHG; 4411590Srgrimes } 4421590Srgrimes p->ni_state = state; 4431590Srgrimes p->ni_seen = 1; 44474671Stmm return p; 4451590Srgrimes} 4461590Srgrimes 4471590Srgrimes/* column locations */ 4481590Srgrimes#define LADDR 0 4491590Srgrimes#define FADDR LADDR+23 4501590Srgrimes#define PROTO FADDR+23 4511590Srgrimes#define RCVCC PROTO+6 4521590Srgrimes#define SNDCC RCVCC+7 4531590Srgrimes#define STATE SNDCC+7 4541590Srgrimes 4551590Srgrimes 4561590Srgrimesvoid 4571590Srgrimeslabelnetstat() 4581590Srgrimes{ 45974671Stmm if (use_kvm && namelist[X_TCB].n_type == 0) 4601590Srgrimes return; 4611590Srgrimes wmove(wnd, 0, 0); wclrtobot(wnd); 4621590Srgrimes mvwaddstr(wnd, 0, LADDR, "Local Address"); 4631590Srgrimes mvwaddstr(wnd, 0, FADDR, "Foreign Address"); 4641590Srgrimes mvwaddstr(wnd, 0, PROTO, "Proto"); 4651590Srgrimes mvwaddstr(wnd, 0, RCVCC, "Recv-Q"); 4661590Srgrimes mvwaddstr(wnd, 0, SNDCC, "Send-Q"); 4678874Srgrimes mvwaddstr(wnd, 0, STATE, "(state)"); 4681590Srgrimes} 4691590Srgrimes 4701590Srgrimesvoid 4711590Srgrimesshownetstat() 4721590Srgrimes{ 47387715Smarkm struct netinfo *p, *q; 474164678Syar char proto[6]; 475164678Syar const char *family = ""; 4761590Srgrimes 4771590Srgrimes /* 4781590Srgrimes * First, delete any connections that have gone 4791590Srgrimes * away and adjust the position of connections 4801590Srgrimes * below to reflect the deleted line. 4811590Srgrimes */ 48274671Stmm p = TAILQ_FIRST(&netcb); 48374671Stmm while (p != NULL) { 48474671Stmm if (p->ni_line == -1 || p->ni_seen) { 48574671Stmm p = TAILQ_NEXT(p, chain); 4861590Srgrimes continue; 48774671Stmm } 4881590Srgrimes wmove(wnd, p->ni_line, 0); wdeleteln(wnd); 48970523Sphk TAILQ_FOREACH(q, &netcb, chain) 4901590Srgrimes if (q != p && q->ni_line > p->ni_line) { 4911590Srgrimes q->ni_line--; 4921590Srgrimes /* this shouldn't be necessary */ 4931590Srgrimes q->ni_flags |= NIF_LACHG|NIF_FACHG; 4941590Srgrimes } 4951590Srgrimes lastrow--; 49674671Stmm q = TAILQ_NEXT(p, chain); 49770523Sphk TAILQ_REMOVE(&netcb, p, chain); 4981590Srgrimes free(p); 4991590Srgrimes p = q; 5001590Srgrimes } 5011590Srgrimes /* 5021590Srgrimes * Update existing connections and add new ones. 5031590Srgrimes */ 50470523Sphk TAILQ_FOREACH(p, &netcb, chain) { 5051590Srgrimes if (p->ni_line == -1) { 5061590Srgrimes /* 5071590Srgrimes * Add a new entry if possible. 5081590Srgrimes */ 5091590Srgrimes if (lastrow > YMAX(wnd)) 5101590Srgrimes continue; 5111590Srgrimes p->ni_line = lastrow++; 5121590Srgrimes p->ni_flags |= NIF_LACHG|NIF_FACHG; 5131590Srgrimes } 5141590Srgrimes if (p->ni_flags & NIF_LACHG) { 5151590Srgrimes wmove(wnd, p->ni_line, LADDR); 516142093Sume inetprint((struct sockaddr *)&p->ni_lsa, p->ni_proto); 5171590Srgrimes p->ni_flags &= ~NIF_LACHG; 5181590Srgrimes } 5191590Srgrimes if (p->ni_flags & NIF_FACHG) { 5201590Srgrimes wmove(wnd, p->ni_line, FADDR); 521142093Sume inetprint((struct sockaddr *)&p->ni_fsa, p->ni_proto); 5221590Srgrimes p->ni_flags &= ~NIF_FACHG; 5231590Srgrimes } 524142093Sume#ifdef INET6 525142093Sume family = (p->ni_lsa.ss_family == AF_INET) ? "4" : "6"; 526142093Sume#endif 527142093Sume snprintf(proto, sizeof(proto), "%s%s", p->ni_proto, family); 528142093Sume mvwaddstr(wnd, p->ni_line, PROTO, proto); 529100591Sjdp mvwprintw(wnd, p->ni_line, RCVCC, "%6u", p->ni_rcvcc); 530100591Sjdp mvwprintw(wnd, p->ni_line, SNDCC, "%6u", p->ni_sndcc); 53187715Smarkm if (streq(p->ni_proto, "tcp")) { 5321590Srgrimes if (p->ni_state < 0 || p->ni_state >= TCP_NSTATES) 5331590Srgrimes mvwprintw(wnd, p->ni_line, STATE, "%d", 5341590Srgrimes p->ni_state); 5351590Srgrimes else 5361590Srgrimes mvwaddstr(wnd, p->ni_line, STATE, 5371590Srgrimes tcpstates[p->ni_state]); 53887715Smarkm } 5391590Srgrimes wclrtoeol(wnd); 5401590Srgrimes } 5411590Srgrimes if (lastrow < YMAX(wnd)) { 5421590Srgrimes wmove(wnd, lastrow, 0); wclrtobot(wnd); 5431590Srgrimes wmove(wnd, YMAX(wnd), 0); wdeleteln(wnd); /* XXX */ 5441590Srgrimes } 5451590Srgrimes} 5461590Srgrimes 5471590Srgrimes/* 5481590Srgrimes * Pretty print an Internet address (net address + port). 5491590Srgrimes * If the nflag was specified, use numbers instead of names. 5501590Srgrimes */ 5511590Srgrimesstatic void 552142093Sumeinetprint(sa, proto) 553142093Sume struct sockaddr *sa; 55487715Smarkm const char *proto; 5551590Srgrimes{ 5561590Srgrimes struct servent *sp = 0; 55787715Smarkm char line[80], *cp; 558142093Sume int port; 5591590Srgrimes 560142093Sume switch (sa->sa_family) { 561142093Sume case AF_INET: 562142093Sume port = ((struct sockaddr_in *)sa)->sin_port; 563142093Sume break; 564142093Sume#ifdef INET6 565142093Sume case AF_INET6: 566142093Sume port = ((struct sockaddr_in6 *)sa)->sin6_port; 567142093Sume break; 568142093Sume#endif 569142093Sume default: 570142093Sume port = 0; 571142093Sume break; 572142093Sume } 573142093Sume snprintf(line, sizeof(line), "%.*s.", 16, inetname(sa)); 5741590Srgrimes cp = index(line, '\0'); 5751590Srgrimes if (!nflag && port) 5761590Srgrimes sp = getservbyport(port, proto); 5771590Srgrimes if (sp || port == 0) 578158161Sbde snprintf(cp, sizeof(line) - (cp - line), "%.8s", 57936789Simp sp ? sp->s_name : "*"); 5801590Srgrimes else 581158161Sbde snprintf(cp, sizeof(line) - (cp - line), "%d", 58236789Simp ntohs((u_short)port)); 5831590Srgrimes /* pad to full column to clear any garbage */ 5841590Srgrimes cp = index(line, '\0'); 5851590Srgrimes while (cp - line < 22) 5861590Srgrimes *cp++ = ' '; 58719330Sphk line[22] = '\0'; 5881590Srgrimes waddstr(wnd, line); 5891590Srgrimes} 5901590Srgrimes 5911590Srgrimes/* 5921590Srgrimes * Construct an Internet address representation. 5938874Srgrimes * If the nflag has been supplied, give 5941590Srgrimes * numeric value, otherwise try for symbolic name. 5951590Srgrimes */ 5961590Srgrimesstatic char * 597142093Sumeinetname(sa) 598142093Sume struct sockaddr *sa; 5991590Srgrimes{ 6001590Srgrimes char *cp = 0; 601142093Sume static char line[NI_MAXHOST]; 6021590Srgrimes struct hostent *hp; 6031590Srgrimes struct netent *np; 604142093Sume struct in_addr in; 6051590Srgrimes 606142093Sume#ifdef INET6 607142093Sume if (sa->sa_family == AF_INET6) { 608142093Sume if (memcmp(&((struct sockaddr_in6 *)sa)->sin6_addr, 609142093Sume &in6addr_any, sizeof(in6addr_any)) == 0) 610142093Sume strcpy(line, "*"); 611142093Sume else 612142093Sume getnameinfo(sa, sa->sa_len, line, sizeof(line), NULL, 0, 613142093Sume nflag ? NI_NUMERICHOST : 0); 614142093Sume return (line); 615142093Sume } 616142093Sume#endif 617142093Sume 618142093Sume in = ((struct sockaddr_in *)sa)->sin_addr; 6191590Srgrimes if (!nflag && in.s_addr != INADDR_ANY) { 6201590Srgrimes int net = inet_netof(in); 6211590Srgrimes int lna = inet_lnaof(in); 6221590Srgrimes 6231590Srgrimes if (lna == INADDR_ANY) { 6241590Srgrimes np = getnetbyaddr(net, AF_INET); 6251590Srgrimes if (np) 6261590Srgrimes cp = np->n_name; 6271590Srgrimes } 6281590Srgrimes if (cp == 0) { 6291590Srgrimes hp = gethostbyaddr((char *)&in, sizeof (in), AF_INET); 6301590Srgrimes if (hp) 6311590Srgrimes cp = hp->h_name; 6321590Srgrimes } 6331590Srgrimes } 6341590Srgrimes if (in.s_addr == INADDR_ANY) 6351590Srgrimes strcpy(line, "*"); 6361590Srgrimes else if (cp) 63736789Simp snprintf(line, sizeof(line), "%s", cp); 6381590Srgrimes else { 6391590Srgrimes in.s_addr = ntohl(in.s_addr); 6401590Srgrimes#define C(x) ((x) & 0xff) 64136789Simp snprintf(line, sizeof(line), "%u.%u.%u.%u", C(in.s_addr >> 24), 6421590Srgrimes C(in.s_addr >> 16), C(in.s_addr >> 8), C(in.s_addr)); 6431590Srgrimes } 6441590Srgrimes return (line); 6451590Srgrimes} 6461590Srgrimes 6471590Srgrimesint 6481590Srgrimescmdnetstat(cmd, args) 64987715Smarkm const char *cmd, *args; 6501590Srgrimes{ 6511590Srgrimes if (prefix(cmd, "all")) { 6521590Srgrimes aflag = !aflag; 6531590Srgrimes goto fixup; 6541590Srgrimes } 6551590Srgrimes if (prefix(cmd, "numbers") || prefix(cmd, "names")) { 65670523Sphk struct netinfo *p; 6571590Srgrimes int new; 6581590Srgrimes 6591590Srgrimes new = prefix(cmd, "numbers"); 6601590Srgrimes if (new == nflag) 6611590Srgrimes return (1); 66270523Sphk TAILQ_FOREACH(p, &netcb, chain) { 6631590Srgrimes if (p->ni_line == -1) 6641590Srgrimes continue; 6651590Srgrimes p->ni_flags |= NIF_LACHG|NIF_FACHG; 6661590Srgrimes } 6671590Srgrimes nflag = new; 6681590Srgrimes goto redisplay; 6691590Srgrimes } 6701590Srgrimes if (!netcmd(cmd, args)) 6711590Srgrimes return (0); 6721590Srgrimesfixup: 6731590Srgrimes fetchnetstat(); 6741590Srgrimesredisplay: 6751590Srgrimes shownetstat(); 6761590Srgrimes refresh(); 6771590Srgrimes return (1); 6781590Srgrimes} 679