1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2001 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 28*0Sstevel@tonic-gate /* All Rights Reserved */ 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate /* 31*0Sstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988 32*0Sstevel@tonic-gate * The Regents of the University of California 33*0Sstevel@tonic-gate * All Rights Reserved 34*0Sstevel@tonic-gate * 35*0Sstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from 36*0Sstevel@tonic-gate * software developed by the University of California, Berkeley, and its 37*0Sstevel@tonic-gate * contributors. 38*0Sstevel@tonic-gate */ 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 41*0Sstevel@tonic-gate 42*0Sstevel@tonic-gate /* 43*0Sstevel@tonic-gate * code for netstat's -k option 44*0Sstevel@tonic-gate * 45*0Sstevel@tonic-gate * NOTES: 46*0Sstevel@tonic-gate * 1. A comment "LINTED: (note 1)" appears before certain lines where 47*0Sstevel@tonic-gate * lint would have complained, "pointer cast may result in improper 48*0Sstevel@tonic-gate * alignment". These are lines where lint had suspected potential 49*0Sstevel@tonic-gate * improper alignment of a data structure; in each such situation 50*0Sstevel@tonic-gate * we have relied on the kernel guaranteeing proper alignment. 51*0Sstevel@tonic-gate */ 52*0Sstevel@tonic-gate 53*0Sstevel@tonic-gate #include <stdio.h> 54*0Sstevel@tonic-gate #include <stdlib.h> 55*0Sstevel@tonic-gate #include <unistd.h> 56*0Sstevel@tonic-gate #include <strings.h> 57*0Sstevel@tonic-gate #include <string.h> 58*0Sstevel@tonic-gate #include <kstat.h> 59*0Sstevel@tonic-gate 60*0Sstevel@tonic-gate #include <sys/types.h> 61*0Sstevel@tonic-gate #include <sys/socket.h> 62*0Sstevel@tonic-gate #include <sys/stream.h> 63*0Sstevel@tonic-gate #include <sys/tiuser.h> 64*0Sstevel@tonic-gate #include <sys/socketvar.h> 65*0Sstevel@tonic-gate #include <sys/sysmacros.h> 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate static char *typetoname(t_scalar_t); 68*0Sstevel@tonic-gate static void print_kn(kstat_t *); 69*0Sstevel@tonic-gate static char *nextstr(char *); 70*0Sstevel@tonic-gate extern void fail(int, char *, ...); 71*0Sstevel@tonic-gate 72*0Sstevel@tonic-gate #define NALEN 8 /* nulladdress string length */ 73*0Sstevel@tonic-gate 74*0Sstevel@tonic-gate /* 75*0Sstevel@tonic-gate * Print a summary of connections related to a unix protocol. 76*0Sstevel@tonic-gate */ 77*0Sstevel@tonic-gate void 78*0Sstevel@tonic-gate unixpr(kstat_ctl_t *kc) 79*0Sstevel@tonic-gate { 80*0Sstevel@tonic-gate kstat_t *ksp; 81*0Sstevel@tonic-gate 82*0Sstevel@tonic-gate if (kc == NULL) { /* sanity check. */ 83*0Sstevel@tonic-gate fail(0, "unixpr: No kstat"); 84*0Sstevel@tonic-gate exit(3); 85*0Sstevel@tonic-gate } 86*0Sstevel@tonic-gate 87*0Sstevel@tonic-gate /* find the sockfs kstat: */ 88*0Sstevel@tonic-gate if ((ksp = kstat_lookup(kc, "sockfs", 0, "sock_unix_list")) == 89*0Sstevel@tonic-gate (kstat_t *)NULL) { 90*0Sstevel@tonic-gate fail(0, "kstat_data_lookup failed\n"); 91*0Sstevel@tonic-gate } 92*0Sstevel@tonic-gate 93*0Sstevel@tonic-gate if (kstat_read(kc, ksp, NULL) == -1) { 94*0Sstevel@tonic-gate fail(0, "kstat_read failed for sock_unix_list\n"); 95*0Sstevel@tonic-gate } 96*0Sstevel@tonic-gate 97*0Sstevel@tonic-gate print_kn(ksp); 98*0Sstevel@tonic-gate } 99*0Sstevel@tonic-gate 100*0Sstevel@tonic-gate static void 101*0Sstevel@tonic-gate print_kn(kstat_t *ksp) 102*0Sstevel@tonic-gate { 103*0Sstevel@tonic-gate int i; 104*0Sstevel@tonic-gate struct sockinfo *psi; /* ptr to current sockinfo */ 105*0Sstevel@tonic-gate char *pas; /* ptr to string-format addrs */ 106*0Sstevel@tonic-gate char *nullstr; /* ptr to null string */ 107*0Sstevel@tonic-gate char *conn_vp; 108*0Sstevel@tonic-gate char *local_vp; 109*0Sstevel@tonic-gate 110*0Sstevel@tonic-gate if (ksp->ks_ndata == 0) { 111*0Sstevel@tonic-gate return; /* no AF_UNIX sockets found */ 112*0Sstevel@tonic-gate } 113*0Sstevel@tonic-gate 114*0Sstevel@tonic-gate /* 115*0Sstevel@tonic-gate * Having ks_data set with ks_data == NULL shouldn't happen; 116*0Sstevel@tonic-gate * If it does, the sockfs kstat is seriously broken. 117*0Sstevel@tonic-gate */ 118*0Sstevel@tonic-gate if ((psi = ksp->ks_data) == NULL) { 119*0Sstevel@tonic-gate fail(0, "print_kn: no kstat data\n"); 120*0Sstevel@tonic-gate } 121*0Sstevel@tonic-gate 122*0Sstevel@tonic-gate /* set pas to the address strings which are after the sockinfo */ 123*0Sstevel@tonic-gate pas = &((char *)psi)[sizeof (struct sockinfo)]; 124*0Sstevel@tonic-gate 125*0Sstevel@tonic-gate /* Create a string of NALEN "0"'s for NULL addresses. */ 126*0Sstevel@tonic-gate if ((nullstr = calloc(1, NALEN)) == NULL) { 127*0Sstevel@tonic-gate fail(0, "print_kn: out of memory\n"); 128*0Sstevel@tonic-gate } 129*0Sstevel@tonic-gate (void) memset((void *)nullstr, '0', NALEN); 130*0Sstevel@tonic-gate 131*0Sstevel@tonic-gate (void) printf("\nActive UNIX domain sockets\n"); 132*0Sstevel@tonic-gate (void) printf("%-8.8s %-10.10s %8.8s %8.8s " 133*0Sstevel@tonic-gate "Local Addr Remote Addr\n", 134*0Sstevel@tonic-gate "Address", "Type", "Vnode", "Conn"); 135*0Sstevel@tonic-gate 136*0Sstevel@tonic-gate /* for each sockinfo structure, display what we need: */ 137*0Sstevel@tonic-gate for (i = 0; i < ksp->ks_ndata; i++) { 138*0Sstevel@tonic-gate /* display sonode's address. 1st string after sockinfo: */ 139*0Sstevel@tonic-gate pas = &(((char *)psi)[sizeof (struct sockinfo)]); 140*0Sstevel@tonic-gate (void) printf("%s ", pas); 141*0Sstevel@tonic-gate 142*0Sstevel@tonic-gate (void) printf("%-10.10s ", typetoname(psi->si_serv_type)); 143*0Sstevel@tonic-gate 144*0Sstevel@tonic-gate /* laddr.sou_vp: 2nd string after sockinfo: */ 145*0Sstevel@tonic-gate pas = nextstr(pas); 146*0Sstevel@tonic-gate 147*0Sstevel@tonic-gate local_vp = conn_vp = nullstr; 148*0Sstevel@tonic-gate 149*0Sstevel@tonic-gate if ((psi->si_state & SS_ISBOUND) && 150*0Sstevel@tonic-gate (psi->si_ux_laddr_sou_magic == SOU_MAGIC_EXPLICIT)) { 151*0Sstevel@tonic-gate local_vp = pas; 152*0Sstevel@tonic-gate } 153*0Sstevel@tonic-gate 154*0Sstevel@tonic-gate /* faddr.sou_vp: 3rd string after sockinfo: */ 155*0Sstevel@tonic-gate pas = nextstr(pas); 156*0Sstevel@tonic-gate if ((psi->si_state & SS_ISCONNECTED) && 157*0Sstevel@tonic-gate (psi->si_ux_faddr_sou_magic == SOU_MAGIC_EXPLICIT)) { 158*0Sstevel@tonic-gate conn_vp = pas; 159*0Sstevel@tonic-gate } 160*0Sstevel@tonic-gate 161*0Sstevel@tonic-gate (void) printf("%s %s ", local_vp, conn_vp); 162*0Sstevel@tonic-gate 163*0Sstevel@tonic-gate /* laddr.soa_sa: */ 164*0Sstevel@tonic-gate if ((psi->si_state & SS_ISBOUND) && 165*0Sstevel@tonic-gate strlen(psi->si_laddr_sun_path) != 0 && 166*0Sstevel@tonic-gate psi->si_laddr_soa_len != 0) { 167*0Sstevel@tonic-gate if (psi->si_state & SS_FADDR_NOXLATE) { 168*0Sstevel@tonic-gate (void) printf(" (socketpair) "); 169*0Sstevel@tonic-gate } else { 170*0Sstevel@tonic-gate if (psi->si_laddr_soa_len > 171*0Sstevel@tonic-gate sizeof (psi->si_laddr_family)) 172*0Sstevel@tonic-gate (void) printf("%s ", 173*0Sstevel@tonic-gate psi->si_laddr_sun_path); 174*0Sstevel@tonic-gate else 175*0Sstevel@tonic-gate (void) printf(" "); 176*0Sstevel@tonic-gate } 177*0Sstevel@tonic-gate } else 178*0Sstevel@tonic-gate (void) printf(" "); 179*0Sstevel@tonic-gate 180*0Sstevel@tonic-gate /* faddr.soa_sa: */ 181*0Sstevel@tonic-gate if ((psi->si_state & SS_ISCONNECTED) && 182*0Sstevel@tonic-gate strlen(psi->si_faddr_sun_path) != 0 && 183*0Sstevel@tonic-gate psi->si_faddr_soa_len != 0) { 184*0Sstevel@tonic-gate 185*0Sstevel@tonic-gate if (psi->si_state & SS_FADDR_NOXLATE) { 186*0Sstevel@tonic-gate (void) printf(" (socketpair) "); 187*0Sstevel@tonic-gate } else { 188*0Sstevel@tonic-gate if (psi->si_faddr_soa_len > 189*0Sstevel@tonic-gate sizeof (psi->si_faddr_family)) 190*0Sstevel@tonic-gate (void) printf("%s ", 191*0Sstevel@tonic-gate psi->si_faddr_sun_path); 192*0Sstevel@tonic-gate else 193*0Sstevel@tonic-gate (void) printf(" "); 194*0Sstevel@tonic-gate } 195*0Sstevel@tonic-gate } else 196*0Sstevel@tonic-gate (void) printf(" "); 197*0Sstevel@tonic-gate 198*0Sstevel@tonic-gate (void) printf("\n"); 199*0Sstevel@tonic-gate 200*0Sstevel@tonic-gate /* if si_size didn't get filled in, then we're done */ 201*0Sstevel@tonic-gate if (psi->si_size == 0 || 202*0Sstevel@tonic-gate !IS_P2ALIGNED(psi->si_size, sizeof (psi))) { 203*0Sstevel@tonic-gate break; 204*0Sstevel@tonic-gate } 205*0Sstevel@tonic-gate 206*0Sstevel@tonic-gate /* LINTED: (note 1) */ 207*0Sstevel@tonic-gate psi = (struct sockinfo *)&(((char *)psi)[psi->si_size]); 208*0Sstevel@tonic-gate } 209*0Sstevel@tonic-gate } 210*0Sstevel@tonic-gate 211*0Sstevel@tonic-gate static char * 212*0Sstevel@tonic-gate typetoname(t_scalar_t type) 213*0Sstevel@tonic-gate { 214*0Sstevel@tonic-gate switch (type) { 215*0Sstevel@tonic-gate case T_CLTS: 216*0Sstevel@tonic-gate return ("dgram"); 217*0Sstevel@tonic-gate 218*0Sstevel@tonic-gate case T_COTS: 219*0Sstevel@tonic-gate return ("stream"); 220*0Sstevel@tonic-gate 221*0Sstevel@tonic-gate case T_COTS_ORD: 222*0Sstevel@tonic-gate return ("stream-ord"); 223*0Sstevel@tonic-gate 224*0Sstevel@tonic-gate default: 225*0Sstevel@tonic-gate return (""); 226*0Sstevel@tonic-gate } 227*0Sstevel@tonic-gate } 228*0Sstevel@tonic-gate 229*0Sstevel@tonic-gate /* 230*0Sstevel@tonic-gate * nextstr(): find the beginning of a next string. 231*0Sstevel@tonic-gate * The sockfs kstat left-justifies each address string, leaving 232*0Sstevel@tonic-gate * null's between the strings. Since we don't necessarily know 233*0Sstevel@tonic-gate * the sizes of pointers in the kernel, we need to skip over these 234*0Sstevel@tonic-gate * nulls in order to get to the start of the next string. 235*0Sstevel@tonic-gate */ 236*0Sstevel@tonic-gate static char * 237*0Sstevel@tonic-gate nextstr(char *pas) 238*0Sstevel@tonic-gate { 239*0Sstevel@tonic-gate char *next; 240*0Sstevel@tonic-gate 241*0Sstevel@tonic-gate for (next = &pas[strlen(pas) + 1]; *next == NULL; ) { 242*0Sstevel@tonic-gate next++; 243*0Sstevel@tonic-gate } 244*0Sstevel@tonic-gate 245*0Sstevel@tonic-gate return (next); 246*0Sstevel@tonic-gate } 247