1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright (c) 2001 by Sun Microsystems, Inc. 24*7c478bd9Sstevel@tonic-gate * All rights reserved. 25*7c478bd9Sstevel@tonic-gate */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*7c478bd9Sstevel@tonic-gate 29*7c478bd9Sstevel@tonic-gate 30*7c478bd9Sstevel@tonic-gate #include <poll.h> 31*7c478bd9Sstevel@tonic-gate #include <sys/time.h> 32*7c478bd9Sstevel@tonic-gate #include <stdlib.h> 33*7c478bd9Sstevel@tonic-gate #include "nis_ldap.h" 34*7c478bd9Sstevel@tonic-gate #include "nis_hashitem.h" 35*7c478bd9Sstevel@tonic-gate #include "ldap_map.h" 36*7c478bd9Sstevel@tonic-gate #include "ldap_parse.h" 37*7c478bd9Sstevel@tonic-gate 38*7c478bd9Sstevel@tonic-gate 39*7c478bd9Sstevel@tonic-gate /* 40*7c478bd9Sstevel@tonic-gate * Global structure keeping config state. Since it's created and modified 41*7c478bd9Sstevel@tonic-gate * while the rpc.nisd still is single-threaded, and only read in MT mode, 42*7c478bd9Sstevel@tonic-gate * no locking is needed. 43*7c478bd9Sstevel@tonic-gate */ 44*7c478bd9Sstevel@tonic-gate __nis_config_t ldapConfig = { 45*7c478bd9Sstevel@tonic-gate ini_none, /* nisplusLDAPinitialUpdate */ 46*7c478bd9Sstevel@tonic-gate pass_error, /* nisplusLDAPthreadCreationError */ 47*7c478bd9Sstevel@tonic-gate { 48*7c478bd9Sstevel@tonic-gate -1, /* Try forever */ 49*7c478bd9Sstevel@tonic-gate 15 /* 15 second timeout */ 50*7c478bd9Sstevel@tonic-gate }, 51*7c478bd9Sstevel@tonic-gate de_retry, /* nisplusLDAPdumpError */ 52*7c478bd9Sstevel@tonic-gate { 53*7c478bd9Sstevel@tonic-gate -1, /* Try forever */ 54*7c478bd9Sstevel@tonic-gate 200 /* 200 second timeout */ 55*7c478bd9Sstevel@tonic-gate }, 56*7c478bd9Sstevel@tonic-gate directory_locked, /* nisplusLDAPresyncService */ 57*7c478bd9Sstevel@tonic-gate accumulate, /* nisplusLDAPupdateBatching */ 58*7c478bd9Sstevel@tonic-gate { 59*7c478bd9Sstevel@tonic-gate -1, /* Not used */ 60*7c478bd9Sstevel@tonic-gate 120 /* Accumulate for 120 seconds */ 61*7c478bd9Sstevel@tonic-gate }, 62*7c478bd9Sstevel@tonic-gate block /* nisplusLDAPexclusiveWaitMOde */ 63*7c478bd9Sstevel@tonic-gate }; 64*7c478bd9Sstevel@tonic-gate 65*7c478bd9Sstevel@tonic-gate 66*7c478bd9Sstevel@tonic-gate /* 67*7c478bd9Sstevel@tonic-gate * Utility function that accepts a (__nisdb_retry_t *), decrements the 68*7c478bd9Sstevel@tonic-gate * 'attempts' counter, and sleeps for 'timeout' seconds. 69*7c478bd9Sstevel@tonic-gate * 70*7c478bd9Sstevel@tonic-gate * NOTE: Don't pass a pointer into the 'ldapConfig' structure to 71*7c478bd9Sstevel@tonic-gate * this function. Instead, initialize a private copy to the 72*7c478bd9Sstevel@tonic-gate * value from 'ldapConfig'. 73*7c478bd9Sstevel@tonic-gate * 74*7c478bd9Sstevel@tonic-gate * The value of 'attempts' upon entry determines action as follows: 75*7c478bd9Sstevel@tonic-gate * 76*7c478bd9Sstevel@tonic-gate * < 0 Don't change 'attempts', sleep as indicated, return 1 77*7c478bd9Sstevel@tonic-gate * 78*7c478bd9Sstevel@tonic-gate * 0 Don't change 'attempts', only sleep if forceSleep is set, 79*7c478bd9Sstevel@tonic-gate * return 0 if we didn't sleep, 1 if we slept. 80*7c478bd9Sstevel@tonic-gate * 81*7c478bd9Sstevel@tonic-gate * > 0 Decrement 'attempts', sleep as indicated, return 1 82*7c478bd9Sstevel@tonic-gate */ 83*7c478bd9Sstevel@tonic-gate int 84*7c478bd9Sstevel@tonic-gate __nis_retry_sleep(__nisdb_retry_t *retry, int forceSleep) { 85*7c478bd9Sstevel@tonic-gate 86*7c478bd9Sstevel@tonic-gate if (retry == NULL) 87*7c478bd9Sstevel@tonic-gate return (0); 88*7c478bd9Sstevel@tonic-gate 89*7c478bd9Sstevel@tonic-gate if (retry->attempts > 0) { 90*7c478bd9Sstevel@tonic-gate retry->attempts -= 1; 91*7c478bd9Sstevel@tonic-gate } else if (retry->attempts == 0 && !forceSleep) { 92*7c478bd9Sstevel@tonic-gate return (0); 93*7c478bd9Sstevel@tonic-gate } 94*7c478bd9Sstevel@tonic-gate 95*7c478bd9Sstevel@tonic-gate (void) poll(NULL, 0, retry->timeout*1000); 96*7c478bd9Sstevel@tonic-gate 97*7c478bd9Sstevel@tonic-gate return (1); 98*7c478bd9Sstevel@tonic-gate } 99*7c478bd9Sstevel@tonic-gate 100*7c478bd9Sstevel@tonic-gate /* 101*7c478bd9Sstevel@tonic-gate * The root directory is special in NIS+; it's the only directory that 102*7c478bd9Sstevel@tonic-gate * doesn't appear as an entry in another directory. Hence, our method 103*7c478bd9Sstevel@tonic-gate * of keeping the directory/table entry expiration time in the 104*7c478bd9Sstevel@tonic-gate * directory/table doesn't work, and we instead implement the following 105*7c478bd9Sstevel@tonic-gate * interface. 106*7c478bd9Sstevel@tonic-gate */ 107*7c478bd9Sstevel@tonic-gate static time_t rootDirExpire = 0; 108*7c478bd9Sstevel@tonic-gate static int rootDirTtl = 0; 109*7c478bd9Sstevel@tonic-gate 110*7c478bd9Sstevel@tonic-gate /* 111*7c478bd9Sstevel@tonic-gate * Return 1 if the root dir has expired, 0 otherwise. 112*7c478bd9Sstevel@tonic-gate */ 113*7c478bd9Sstevel@tonic-gate int 114*7c478bd9Sstevel@tonic-gate rootDirExpired(void) { 115*7c478bd9Sstevel@tonic-gate struct timeval now; 116*7c478bd9Sstevel@tonic-gate 117*7c478bd9Sstevel@tonic-gate (void) gettimeofday(&now, 0); 118*7c478bd9Sstevel@tonic-gate 119*7c478bd9Sstevel@tonic-gate if (rootDirExpire >= now.tv_sec) 120*7c478bd9Sstevel@tonic-gate return (1); 121*7c478bd9Sstevel@tonic-gate else 122*7c478bd9Sstevel@tonic-gate return (0); 123*7c478bd9Sstevel@tonic-gate } 124*7c478bd9Sstevel@tonic-gate 125*7c478bd9Sstevel@tonic-gate /* 126*7c478bd9Sstevel@tonic-gate * Update the expiration time of the root dir to be now plus the TTL. 127*7c478bd9Sstevel@tonic-gate * Also establishes the TTL if not set. 128*7c478bd9Sstevel@tonic-gate */ 129*7c478bd9Sstevel@tonic-gate int 130*7c478bd9Sstevel@tonic-gate touchRootDir(void) { 131*7c478bd9Sstevel@tonic-gate struct timeval now; 132*7c478bd9Sstevel@tonic-gate int ttl; 133*7c478bd9Sstevel@tonic-gate 134*7c478bd9Sstevel@tonic-gate (void) gettimeofday(&now, 0); 135*7c478bd9Sstevel@tonic-gate 136*7c478bd9Sstevel@tonic-gate /* Do we need to initialize the TTL ? */ 137*7c478bd9Sstevel@tonic-gate if (rootDirTtl == 0) { 138*7c478bd9Sstevel@tonic-gate __nis_table_mapping_t *t; 139*7c478bd9Sstevel@tonic-gate 140*7c478bd9Sstevel@tonic-gate t = __nis_find_item_mt(ROOTDIRFILE, &ldapMappingList, 0, 0); 141*7c478bd9Sstevel@tonic-gate if (t != 0) { 142*7c478bd9Sstevel@tonic-gate int interval; 143*7c478bd9Sstevel@tonic-gate 144*7c478bd9Sstevel@tonic-gate interval = t->initTtlHi - t->initTtlLo + 1; 145*7c478bd9Sstevel@tonic-gate 146*7c478bd9Sstevel@tonic-gate if (interval > 1) { 147*7c478bd9Sstevel@tonic-gate srand48(now.tv_sec); 148*7c478bd9Sstevel@tonic-gate ttl = (lrand48() % interval); 149*7c478bd9Sstevel@tonic-gate } else { 150*7c478bd9Sstevel@tonic-gate ttl = t->initTtlLo; 151*7c478bd9Sstevel@tonic-gate } 152*7c478bd9Sstevel@tonic-gate 153*7c478bd9Sstevel@tonic-gate rootDirTtl = t->ttl; 154*7c478bd9Sstevel@tonic-gate } else { 155*7c478bd9Sstevel@tonic-gate ttl = rootDirTtl = 3600; 156*7c478bd9Sstevel@tonic-gate } 157*7c478bd9Sstevel@tonic-gate } else { 158*7c478bd9Sstevel@tonic-gate ttl = rootDirTtl; 159*7c478bd9Sstevel@tonic-gate } 160*7c478bd9Sstevel@tonic-gate 161*7c478bd9Sstevel@tonic-gate rootDirExpire = now.tv_sec + ttl; 162*7c478bd9Sstevel@tonic-gate 163*7c478bd9Sstevel@tonic-gate return (0); 164*7c478bd9Sstevel@tonic-gate } 165