11590Srgrimes/*- 21590Srgrimes * Copyright (c) 1983, 1988, 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 * 4. Neither the name of the University nor the names of its contributors 141590Srgrimes * may be used to endorse or promote products derived from this software 151590Srgrimes * without specific prior written permission. 161590Srgrimes * 171590Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181590Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191590Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201590Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211590Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221590Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231590Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241590Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251590Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261590Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271590Srgrimes * SUCH DAMAGE. 281590Srgrimes */ 291590Srgrimes 30132671Scharnier#if 0 311590Srgrimes#ifndef lint 321590Srgrimesstatic char sccsid[] = "@(#)unix.c 8.1 (Berkeley) 6/6/93"; 33132671Scharnier#endif /* not lint */ 3427753Scharnier#endif 351590Srgrimes 36132671Scharnier#include <sys/cdefs.h> 37132671Scharnier__FBSDID("$FreeBSD$"); 38132671Scharnier 391590Srgrimes/* 401590Srgrimes * Display protocol blocks in the unix domain. 411590Srgrimes */ 421590Srgrimes#include <sys/param.h> 4314543Sdg#include <sys/queue.h> 441590Srgrimes#include <sys/protosw.h> 451590Srgrimes#include <sys/socket.h> 461590Srgrimes#include <sys/socketvar.h> 471590Srgrimes#include <sys/mbuf.h> 481590Srgrimes#include <sys/sysctl.h> 491590Srgrimes#include <sys/un.h> 501590Srgrimes#include <sys/unpcb.h> 511590Srgrimes 521590Srgrimes#include <netinet/in.h> 531590Srgrimes 5436080Swollman#include <errno.h> 5538185Sphk#include <err.h> 5636103Swollman#include <stddef.h> 57160787Syar#include <stdint.h> 581590Srgrimes#include <stdio.h> 591590Srgrimes#include <stdlib.h> 60171465Sjhb#include <strings.h> 6136080Swollman#include <kvm.h> 621590Srgrimes#include "netstat.h" 631590Srgrimes 64175061Sobrienstatic void unixdomainpr(struct xunpcb *, struct xsocket *); 651590Srgrimes 6636080Swollmanstatic const char *const socktype[] = 6736080Swollman { "#0", "stream", "dgram", "raw", "rdm", "seqpacket" }; 681590Srgrimes 69171465Sjhbstatic int 70171465Sjhbpcblist_sysctl(int type, char **bufp) 71171465Sjhb{ 72171465Sjhb char *buf; 73171465Sjhb size_t len; 74171465Sjhb char mibvar[sizeof "net.local.seqpacket.pcblist"]; 75171465Sjhb 76171465Sjhb sprintf(mibvar, "net.local.%s.pcblist", socktype[type]); 77171465Sjhb 78171465Sjhb len = 0; 79171465Sjhb if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) { 80171465Sjhb if (errno != ENOENT) 81171465Sjhb warn("sysctl: %s", mibvar); 82171465Sjhb return (-1); 83171465Sjhb } 84171465Sjhb if ((buf = malloc(len)) == 0) { 85171465Sjhb warnx("malloc %lu bytes", (u_long)len); 86171465Sjhb return (-2); 87171465Sjhb } 88171465Sjhb if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) { 89171465Sjhb warn("sysctl: %s", mibvar); 90171465Sjhb free(buf); 91171465Sjhb return (-2); 92171465Sjhb } 93171465Sjhb *bufp = buf; 94171465Sjhb return (0); 95171465Sjhb} 96171465Sjhb 97171465Sjhbstatic int 98171465Sjhbpcblist_kvm(u_long count_off, u_long gencnt_off, u_long head_off, char **bufp) 99171465Sjhb{ 100171465Sjhb struct unp_head head; 101171465Sjhb struct unpcb *unp, unp_conn; 102171465Sjhb u_char sun_len; 103171465Sjhb struct socket so; 104171465Sjhb struct xunpgen xug; 105171465Sjhb struct xunpcb xu; 106171465Sjhb unp_gen_t unp_gencnt; 107171465Sjhb u_int unp_count; 108171465Sjhb char *buf, *p; 109171465Sjhb size_t len; 110171465Sjhb 111171465Sjhb if (count_off == 0 || gencnt_off == 0) 112171465Sjhb return (-2); 113171465Sjhb if (head_off == 0) 114171465Sjhb return (-1); 115171465Sjhb kread(count_off, &unp_count, sizeof(unp_count)); 116171465Sjhb len = 2 * sizeof(xug) + (unp_count + unp_count / 8) * sizeof(xu); 117171465Sjhb if ((buf = malloc(len)) == 0) { 118171465Sjhb warnx("malloc %lu bytes", (u_long)len); 119171465Sjhb return (-2); 120171465Sjhb } 121171465Sjhb p = buf; 122171465Sjhb 123175061Sobrien#define COPYOUT(obj, size) do { \ 124171465Sjhb if (len < (size)) { \ 125171465Sjhb warnx("buffer size exceeded"); \ 126171465Sjhb goto fail; \ 127171465Sjhb } \ 128171465Sjhb bcopy((obj), p, (size)); \ 129171465Sjhb len -= (size); \ 130171465Sjhb p += (size); \ 131171465Sjhb} while (0) 132171465Sjhb 133175061Sobrien#define KREAD(off, buf, len) do { \ 134171465Sjhb if (kread((uintptr_t)(off), (buf), (len)) != 0) \ 135171465Sjhb goto fail; \ 136171465Sjhb} while (0) 137171465Sjhb 138171465Sjhb /* Write out header. */ 139171465Sjhb kread(gencnt_off, &unp_gencnt, sizeof(unp_gencnt)); 140171465Sjhb xug.xug_len = sizeof xug; 141171465Sjhb xug.xug_count = unp_count; 142171465Sjhb xug.xug_gen = unp_gencnt; 143171465Sjhb xug.xug_sogen = 0; 144171465Sjhb COPYOUT(&xug, sizeof xug); 145171465Sjhb 146171465Sjhb /* Walk the PCB list. */ 147171465Sjhb xu.xu_len = sizeof xu; 148171465Sjhb KREAD(head_off, &head, sizeof(head)); 149171465Sjhb LIST_FOREACH(unp, &head, unp_link) { 150171465Sjhb xu.xu_unpp = unp; 151171465Sjhb KREAD(unp, &xu.xu_unp, sizeof (*unp)); 152171465Sjhb unp = &xu.xu_unp; 153171465Sjhb 154171465Sjhb if (unp->unp_gencnt > unp_gencnt) 155171465Sjhb continue; 156171465Sjhb if (unp->unp_addr != NULL) { 157171465Sjhb KREAD(unp->unp_addr, &sun_len, sizeof(sun_len)); 158171465Sjhb KREAD(unp->unp_addr, &xu.xu_addr, sun_len); 159171465Sjhb } 160171465Sjhb if (unp->unp_conn != NULL) { 161171465Sjhb KREAD(unp->unp_conn, &unp_conn, sizeof(unp_conn)); 162171465Sjhb if (unp_conn.unp_addr != NULL) { 163171465Sjhb KREAD(unp_conn.unp_addr, &sun_len, 164171465Sjhb sizeof(sun_len)); 165171465Sjhb KREAD(unp_conn.unp_addr, &xu.xu_caddr, sun_len); 166171465Sjhb } 167171465Sjhb } 168171465Sjhb KREAD(unp->unp_socket, &so, sizeof(so)); 169171465Sjhb if (sotoxsocket(&so, &xu.xu_socket) != 0) 170171465Sjhb goto fail; 171171465Sjhb COPYOUT(&xu, sizeof(xu)); 172171465Sjhb } 173171465Sjhb 174171465Sjhb /* Reread the counts and write the footer. */ 175171465Sjhb kread(count_off, &unp_count, sizeof(unp_count)); 176171465Sjhb kread(gencnt_off, &unp_gencnt, sizeof(unp_gencnt)); 177171465Sjhb xug.xug_count = unp_count; 178171465Sjhb xug.xug_gen = unp_gencnt; 179171465Sjhb COPYOUT(&xug, sizeof xug); 180171465Sjhb 181171465Sjhb *bufp = buf; 182171465Sjhb return (0); 183171465Sjhb 184171465Sjhbfail: 185171465Sjhb free(buf); 186171465Sjhb return (-1); 187171465Sjhb#undef COPYOUT 188171465Sjhb#undef KREAD 189171465Sjhb} 190171465Sjhb 1911590Srgrimesvoid 192197777Srwatsonunixpr(u_long count_off, u_long gencnt_off, u_long dhead_off, u_long shead_off, 193197777Srwatson u_long sphead_off) 1941590Srgrimes{ 19536080Swollman char *buf; 196171465Sjhb int ret, type; 19736080Swollman struct xsocket *so; 19836080Swollman struct xunpgen *xug, *oxug; 19936080Swollman struct xunpcb *xunp; 200197777Srwatson u_long head_off; 2011590Srgrimes 202246988Scharnier buf = NULL; 20344091Sfenner for (type = SOCK_STREAM; type <= SOCK_SEQPACKET; type++) { 204171465Sjhb if (live) 205171465Sjhb ret = pcblist_sysctl(type, &buf); 206197777Srwatson else { 207197777Srwatson head_off = 0; 208197777Srwatson switch (type) { 209197777Srwatson case SOCK_STREAM: 210197777Srwatson head_off = shead_off; 211197777Srwatson break; 212197777Srwatson 213197777Srwatson case SOCK_DGRAM: 214197777Srwatson head_off = dhead_off; 215197777Srwatson break; 216197777Srwatson 217197777Srwatson case SOCK_SEQPACKET: 218197777Srwatson head_off = sphead_off; 219197777Srwatson break; 220197777Srwatson } 221197777Srwatson ret = pcblist_kvm(count_off, gencnt_off, head_off, 222197777Srwatson &buf); 223197777Srwatson } 224171465Sjhb if (ret == -1) 2251590Srgrimes continue; 226171465Sjhb if (ret < 0) 22736080Swollman return; 22836080Swollman 22936080Swollman oxug = xug = (struct xunpgen *)buf; 23036080Swollman for (xug = (struct xunpgen *)((char *)xug + xug->xug_len); 23136080Swollman xug->xug_len > sizeof(struct xunpgen); 23236080Swollman xug = (struct xunpgen *)((char *)xug + xug->xug_len)) { 23336080Swollman xunp = (struct xunpcb *)xug; 23436080Swollman so = &xunp->xu_socket; 23536080Swollman 23636080Swollman /* Ignore PCBs which were freed during copyout. */ 23736080Swollman if (xunp->xu_unp.unp_gencnt > oxug->xug_gen) 23836080Swollman continue; 23936080Swollman unixdomainpr(xunp, so); 24036080Swollman } 24136080Swollman if (xug != oxug && xug->xug_gen != oxug->xug_gen) { 24236080Swollman if (oxug->xug_count > xug->xug_count) { 24336080Swollman printf("Some %s sockets may have been deleted.\n", 24436080Swollman socktype[type]); 24536080Swollman } else if (oxug->xug_count < xug->xug_count) { 24636080Swollman printf("Some %s sockets may have been created.\n", 24736080Swollman socktype[type]); 24836080Swollman } else { 24936080Swollman printf("Some %s sockets may have been created or deleted", 25036080Swollman socktype[type]); 25136080Swollman } 25236080Swollman } 25336080Swollman free(buf); 2541590Srgrimes } 2551590Srgrimes} 2561590Srgrimes 2571590Srgrimesstatic void 25878314Sassarunixdomainpr(struct xunpcb *xunp, struct xsocket *so) 2591590Srgrimes{ 26036080Swollman struct unpcb *unp; 26136080Swollman struct sockaddr_un *sa; 2621590Srgrimes static int first = 1; 263186644Smaxim char buf1[15]; 2641590Srgrimes 26536080Swollman unp = &xunp->xu_unp; 26636080Swollman if (unp->unp_addr) 26736080Swollman sa = &xunp->xu_addr; 26836080Swollman else 26928726Swollman sa = (struct sockaddr_un *)0; 27036080Swollman 271186644Smaxim if (first && !Lflag) { 2721590Srgrimes printf("Active UNIX domain sockets\n"); 2731590Srgrimes printf( 2741590Srgrimes"%-8.8s %-6.6s %-6.6s %-6.6s %8.8s %8.8s %8.8s %8.8s Addr\n", 2751590Srgrimes "Address", "Type", "Recv-Q", "Send-Q", 2761590Srgrimes "Inode", "Conn", "Refs", "Nextref"); 2771590Srgrimes first = 0; 2781590Srgrimes } 279186644Smaxim 280186644Smaxim if (Lflag && so->so_qlimit == 0) 281186644Smaxim return; 282186644Smaxim 283186644Smaxim if (Lflag) { 284186644Smaxim snprintf(buf1, 15, "%d/%d/%d", so->so_qlen, 285186644Smaxim so->so_incqlen, so->so_qlimit); 286186644Smaxim printf("unix %-14.14s", buf1); 287186644Smaxim } else { 288186644Smaxim printf("%8lx %-6.6s %6u %6u %8lx %8lx %8lx %8lx", 289186644Smaxim (long)so->so_pcb, socktype[so->so_type], so->so_rcv.sb_cc, 290186644Smaxim so->so_snd.sb_cc, (long)unp->unp_vnode, (long)unp->unp_conn, 291186644Smaxim (long)LIST_FIRST(&unp->unp_refs), 292186644Smaxim (long)LIST_NEXT(unp, unp_reflink)); 293186644Smaxim } 29428726Swollman if (sa) 29536091Sache printf(" %.*s", 29637453Sbde (int)(sa->sun_len - offsetof(struct sockaddr_un, sun_path)), 29736091Sache sa->sun_path); 2981590Srgrimes putchar('\n'); 2991590Srgrimes} 300