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 2003 Sun Microsystems, Inc. All rights reserved. 24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 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 * Routines to handle getipnode* calls in nscd. Note that the 31*7c478bd9Sstevel@tonic-gate * getnodeby* APIs were renamed getipnodeby*. The interfaces 32*7c478bd9Sstevel@tonic-gate * related to them in the nscd will remain as getnode*. 33*7c478bd9Sstevel@tonic-gate */ 34*7c478bd9Sstevel@tonic-gate 35*7c478bd9Sstevel@tonic-gate #include <assert.h> 36*7c478bd9Sstevel@tonic-gate #include <errno.h> 37*7c478bd9Sstevel@tonic-gate #include <memory.h> 38*7c478bd9Sstevel@tonic-gate #include <signal.h> 39*7c478bd9Sstevel@tonic-gate #include <stdlib.h> 40*7c478bd9Sstevel@tonic-gate #include <stdio.h> 41*7c478bd9Sstevel@tonic-gate #include <string.h> 42*7c478bd9Sstevel@tonic-gate #include <strings.h> 43*7c478bd9Sstevel@tonic-gate #include <sys/door.h> 44*7c478bd9Sstevel@tonic-gate #include <sys/stat.h> 45*7c478bd9Sstevel@tonic-gate #include <sys/time.h> 46*7c478bd9Sstevel@tonic-gate #include <sys/types.h> 47*7c478bd9Sstevel@tonic-gate #include <sys/wait.h> 48*7c478bd9Sstevel@tonic-gate #include <thread.h> 49*7c478bd9Sstevel@tonic-gate #include <unistd.h> 50*7c478bd9Sstevel@tonic-gate #include <ucred.h> 51*7c478bd9Sstevel@tonic-gate #include <nss_common.h> 52*7c478bd9Sstevel@tonic-gate #include <inet/ip6.h> 53*7c478bd9Sstevel@tonic-gate 54*7c478bd9Sstevel@tonic-gate #include "getxby_door.h" 55*7c478bd9Sstevel@tonic-gate #include "server_door.h" 56*7c478bd9Sstevel@tonic-gate #include "nscd.h" 57*7c478bd9Sstevel@tonic-gate 58*7c478bd9Sstevel@tonic-gate static hash_t *addr_hash; /* node address hash */ 59*7c478bd9Sstevel@tonic-gate static hash_t *nnam_hash; /* node name hash */ 60*7c478bd9Sstevel@tonic-gate static mutex_t node_lock = DEFAULTMUTEX; 61*7c478bd9Sstevel@tonic-gate static waiter_t node_wait; 62*7c478bd9Sstevel@tonic-gate 63*7c478bd9Sstevel@tonic-gate static void getnode_addrkeepalive(int keep, int interval); 64*7c478bd9Sstevel@tonic-gate static void getnode_invalidate_unlocked(void); 65*7c478bd9Sstevel@tonic-gate static void getnode_namekeepalive(int keep, int interval); 66*7c478bd9Sstevel@tonic-gate static void update_node_bucket(nsc_bucket_t ** old, nsc_bucket_t *new, 67*7c478bd9Sstevel@tonic-gate int callnumber); 68*7c478bd9Sstevel@tonic-gate static nsc_bucket_t *fixbuffer(nsc_return_t *in, int maxlen); 69*7c478bd9Sstevel@tonic-gate static void do_findnaddrs(nsc_bucket_t *ptr, int *table, char *addr); 70*7c478bd9Sstevel@tonic-gate static void do_findnnams(nsc_bucket_t *ptr, int *table, char *name); 71*7c478bd9Sstevel@tonic-gate static void do_invalidate(nsc_bucket_t ** ptr, int callnumber); 72*7c478bd9Sstevel@tonic-gate 73*7c478bd9Sstevel@tonic-gate /* 74*7c478bd9Sstevel@tonic-gate * Create a combined key 75*7c478bd9Sstevel@tonic-gate * combined key = 76*7c478bd9Sstevel@tonic-gate * name + ":" + af_family(in %d format) + ":" + flags(in %d format) 77*7c478bd9Sstevel@tonic-gate * name = foo, af_family = 26, flags = 3, addrconfig = 1 78*7c478bd9Sstevel@tonic-gate * key = "foo:26:3" 79*7c478bd9Sstevel@tonic-gate * The string is allocated and caller has to free it. 80*7c478bd9Sstevel@tonic-gate * 81*7c478bd9Sstevel@tonic-gate * Insert ":" in between to ensure the uniqueness of the key. 82*7c478bd9Sstevel@tonic-gate * 83*7c478bd9Sstevel@tonic-gate * af_family: [2 | 26] ([AF_INET | AF_INET6]) 84*7c478bd9Sstevel@tonic-gate * flags: 0 - strict 85*7c478bd9Sstevel@tonic-gate * 1 - AI_V4MAPPED 86*7c478bd9Sstevel@tonic-gate * 3 - (AI_V4MAPPED | AI_ALL) 87*7c478bd9Sstevel@tonic-gate * 4 - AI_ADDRCONFIG 88*7c478bd9Sstevel@tonic-gate * 5 - AI_DEFAULT (AI_V4MAPPED | AI_ADDRCONFIG) 89*7c478bd9Sstevel@tonic-gate * 7 - (AI_V4MAPPED | AI_ALL | AI_ADDRCONFIG) 90*7c478bd9Sstevel@tonic-gate */ 91*7c478bd9Sstevel@tonic-gate static char * 92*7c478bd9Sstevel@tonic-gate get_ipnode_combined_key(nsc_call_t *in) { 93*7c478bd9Sstevel@tonic-gate int len; 94*7c478bd9Sstevel@tonic-gate char *key; 95*7c478bd9Sstevel@tonic-gate char af_str[8]; /* in %d format */ 96*7c478bd9Sstevel@tonic-gate char flags_str[8]; /* in %d format */ 97*7c478bd9Sstevel@tonic-gate 98*7c478bd9Sstevel@tonic-gate snprintf(af_str, 8, "%d", in->nsc_u.ipnode.af_family); 99*7c478bd9Sstevel@tonic-gate snprintf(flags_str, 8, "%d", in->nsc_u.ipnode.flags); 100*7c478bd9Sstevel@tonic-gate /* name + ":" + af_str + ":" + flags_str + 1 */ 101*7c478bd9Sstevel@tonic-gate len = strlen(in->nsc_u.ipnode.name) + strlen(af_str) + 102*7c478bd9Sstevel@tonic-gate strlen(flags_str) + 3; 103*7c478bd9Sstevel@tonic-gate 104*7c478bd9Sstevel@tonic-gate if ((key = (char *)malloc(len)) == NULL) 105*7c478bd9Sstevel@tonic-gate return (NULL); 106*7c478bd9Sstevel@tonic-gate 107*7c478bd9Sstevel@tonic-gate snprintf(key, len, "%s:%s:%s", in->nsc_u.ipnode.name, af_str, 108*7c478bd9Sstevel@tonic-gate flags_str); 109*7c478bd9Sstevel@tonic-gate return (key); 110*7c478bd9Sstevel@tonic-gate } 111*7c478bd9Sstevel@tonic-gate /* 112*7c478bd9Sstevel@tonic-gate * Parse key and copy the values to out 113*7c478bd9Sstevel@tonic-gate */ 114*7c478bd9Sstevel@tonic-gate static void 115*7c478bd9Sstevel@tonic-gate copy_ipnode_combined_key(char *key, nsc_call_t *out) { 116*7c478bd9Sstevel@tonic-gate char *token, *lasts; 117*7c478bd9Sstevel@tonic-gate 118*7c478bd9Sstevel@tonic-gate if ((token = strtok_r(key, ":", &lasts)) != NULL) { 119*7c478bd9Sstevel@tonic-gate /* copy name */ 120*7c478bd9Sstevel@tonic-gate (void) strncpy(out->nsc_u.ipnode.name, token, 121*7c478bd9Sstevel@tonic-gate NSCDMAXNAMELEN); 122*7c478bd9Sstevel@tonic-gate if ((token = strtok_r(NULL, ":", &lasts)) != NULL) { 123*7c478bd9Sstevel@tonic-gate /* Copy af_family */ 124*7c478bd9Sstevel@tonic-gate out->nsc_u.ipnode.af_family = atoi(token); 125*7c478bd9Sstevel@tonic-gate 126*7c478bd9Sstevel@tonic-gate if ((token = strtok_r(NULL, ":", &lasts)) != NULL) { 127*7c478bd9Sstevel@tonic-gate /* Copy flags */ 128*7c478bd9Sstevel@tonic-gate out->nsc_u.ipnode.flags = atoi(token); 129*7c478bd9Sstevel@tonic-gate } 130*7c478bd9Sstevel@tonic-gate } 131*7c478bd9Sstevel@tonic-gate } 132*7c478bd9Sstevel@tonic-gate } 133*7c478bd9Sstevel@tonic-gate 134*7c478bd9Sstevel@tonic-gate static void 135*7c478bd9Sstevel@tonic-gate safe_inet_ntop(int af, const void *addr, char *cp, size_t size) 136*7c478bd9Sstevel@tonic-gate { 137*7c478bd9Sstevel@tonic-gate if (inet_ntop(af, addr, cp, size) != cp) { 138*7c478bd9Sstevel@tonic-gate /* 139*7c478bd9Sstevel@tonic-gate * Called only for logging purposes... 140*7c478bd9Sstevel@tonic-gate * this should never happen in the nscd... but 141*7c478bd9Sstevel@tonic-gate * just in case we'll make sure we have a 142*7c478bd9Sstevel@tonic-gate * plausible error message. 143*7c478bd9Sstevel@tonic-gate */ 144*7c478bd9Sstevel@tonic-gate (void) snprintf(cp, size, "<inet_ntop returned %s>", 145*7c478bd9Sstevel@tonic-gate strerror(errno)); 146*7c478bd9Sstevel@tonic-gate } 147*7c478bd9Sstevel@tonic-gate } 148*7c478bd9Sstevel@tonic-gate 149*7c478bd9Sstevel@tonic-gate void 150*7c478bd9Sstevel@tonic-gate getnode_init(void) 151*7c478bd9Sstevel@tonic-gate { 152*7c478bd9Sstevel@tonic-gate addr_hash = make_hash(current_admin.node.nsc_suggestedsize); 153*7c478bd9Sstevel@tonic-gate nnam_hash = make_hash(current_admin.node.nsc_suggestedsize); 154*7c478bd9Sstevel@tonic-gate } 155*7c478bd9Sstevel@tonic-gate 156*7c478bd9Sstevel@tonic-gate static void 157*7c478bd9Sstevel@tonic-gate do_invalidate(nsc_bucket_t ** ptr, int callnumber) 158*7c478bd9Sstevel@tonic-gate { 159*7c478bd9Sstevel@tonic-gate if (*ptr != NULL && *ptr != (nsc_bucket_t *)-1) { 160*7c478bd9Sstevel@tonic-gate /* leave pending calls alone */ 161*7c478bd9Sstevel@tonic-gate update_node_bucket(ptr, NULL, callnumber); 162*7c478bd9Sstevel@tonic-gate } 163*7c478bd9Sstevel@tonic-gate } 164*7c478bd9Sstevel@tonic-gate 165*7c478bd9Sstevel@tonic-gate static void 166*7c478bd9Sstevel@tonic-gate do_findnnams(nsc_bucket_t *ptr, int *table, char *name) 167*7c478bd9Sstevel@tonic-gate { 168*7c478bd9Sstevel@tonic-gate /* 169*7c478bd9Sstevel@tonic-gate * be careful with ptr - it may be -1 or NULL. 170*7c478bd9Sstevel@tonic-gate */ 171*7c478bd9Sstevel@tonic-gate 172*7c478bd9Sstevel@tonic-gate if (ptr != NULL && ptr != (nsc_bucket_t *)-1) { 173*7c478bd9Sstevel@tonic-gate /* leave pending calls alone */ 174*7c478bd9Sstevel@tonic-gate char *tmp = (char *)insertn(table, ptr->nsc_hits, 175*7c478bd9Sstevel@tonic-gate (int)strdup(name)); 176*7c478bd9Sstevel@tonic-gate if (tmp != (char *)-1) 177*7c478bd9Sstevel@tonic-gate free(tmp); 178*7c478bd9Sstevel@tonic-gate } 179*7c478bd9Sstevel@tonic-gate } 180*7c478bd9Sstevel@tonic-gate 181*7c478bd9Sstevel@tonic-gate static void 182*7c478bd9Sstevel@tonic-gate do_findnaddrs(nsc_bucket_t *ptr, int *table, char *addr) 183*7c478bd9Sstevel@tonic-gate { 184*7c478bd9Sstevel@tonic-gate 185*7c478bd9Sstevel@tonic-gate if (ptr != NULL && ptr != (nsc_bucket_t *)-1) { 186*7c478bd9Sstevel@tonic-gate 187*7c478bd9Sstevel@tonic-gate /* leave pending calls alone */ 188*7c478bd9Sstevel@tonic-gate char *tmp = (char *)insertn(table, ptr->nsc_hits, 189*7c478bd9Sstevel@tonic-gate (int)strdup(addr)); 190*7c478bd9Sstevel@tonic-gate if (tmp != (char *)-1) 191*7c478bd9Sstevel@tonic-gate free(tmp); 192*7c478bd9Sstevel@tonic-gate } 193*7c478bd9Sstevel@tonic-gate } 194*7c478bd9Sstevel@tonic-gate 195*7c478bd9Sstevel@tonic-gate void 196*7c478bd9Sstevel@tonic-gate getnode_revalidate(void) 197*7c478bd9Sstevel@tonic-gate { 198*7c478bd9Sstevel@tonic-gate for (;;) { 199*7c478bd9Sstevel@tonic-gate int slp; 200*7c478bd9Sstevel@tonic-gate int interval; 201*7c478bd9Sstevel@tonic-gate int count; 202*7c478bd9Sstevel@tonic-gate 203*7c478bd9Sstevel@tonic-gate slp = current_admin.node.nsc_pos_ttl; 204*7c478bd9Sstevel@tonic-gate 205*7c478bd9Sstevel@tonic-gate if (slp < 60) 206*7c478bd9Sstevel@tonic-gate slp = 60; 207*7c478bd9Sstevel@tonic-gate 208*7c478bd9Sstevel@tonic-gate if ((count = current_admin.node.nsc_keephot) != 0) { 209*7c478bd9Sstevel@tonic-gate interval = (slp/2)/count; 210*7c478bd9Sstevel@tonic-gate if (interval == 0) interval = 1; 211*7c478bd9Sstevel@tonic-gate (void) sleep(slp*2/3); 212*7c478bd9Sstevel@tonic-gate getnode_namekeepalive(count, interval); 213*7c478bd9Sstevel@tonic-gate getnode_addrkeepalive(count, interval); 214*7c478bd9Sstevel@tonic-gate } else { 215*7c478bd9Sstevel@tonic-gate (void) sleep(slp); 216*7c478bd9Sstevel@tonic-gate } 217*7c478bd9Sstevel@tonic-gate } 218*7c478bd9Sstevel@tonic-gate } 219*7c478bd9Sstevel@tonic-gate 220*7c478bd9Sstevel@tonic-gate static void 221*7c478bd9Sstevel@tonic-gate getnode_namekeepalive(int keep, int interval) 222*7c478bd9Sstevel@tonic-gate { 223*7c478bd9Sstevel@tonic-gate int *table; 224*7c478bd9Sstevel@tonic-gate union { 225*7c478bd9Sstevel@tonic-gate nsc_data_t ping; 226*7c478bd9Sstevel@tonic-gate char space[sizeof (nsc_data_t) + NSCDMAXNAMELEN]; 227*7c478bd9Sstevel@tonic-gate } u; 228*7c478bd9Sstevel@tonic-gate 229*7c478bd9Sstevel@tonic-gate int i; 230*7c478bd9Sstevel@tonic-gate 231*7c478bd9Sstevel@tonic-gate if (!keep) 232*7c478bd9Sstevel@tonic-gate return; 233*7c478bd9Sstevel@tonic-gate 234*7c478bd9Sstevel@tonic-gate table = maken(keep); 235*7c478bd9Sstevel@tonic-gate (void) mutex_lock(&node_lock); 236*7c478bd9Sstevel@tonic-gate operate_hash(nnam_hash, do_findnnams, (char *)table); 237*7c478bd9Sstevel@tonic-gate (void) mutex_unlock(&node_lock); 238*7c478bd9Sstevel@tonic-gate 239*7c478bd9Sstevel@tonic-gate for (i = 1; i <= keep; i++) { 240*7c478bd9Sstevel@tonic-gate char *tmp; 241*7c478bd9Sstevel@tonic-gate u.ping.nsc_call.nsc_callnumber = GETIPNODEBYNAME; 242*7c478bd9Sstevel@tonic-gate 243*7c478bd9Sstevel@tonic-gate if ((tmp = (char *)table[keep + 1 + i]) == (char *)-1) 244*7c478bd9Sstevel@tonic-gate continue; /* unused slot in table */ 245*7c478bd9Sstevel@tonic-gate if (current_admin.debug_level >= DBG_ALL) 246*7c478bd9Sstevel@tonic-gate logit("keepalive: reviving node %s\n", tmp); 247*7c478bd9Sstevel@tonic-gate copy_ipnode_combined_key(tmp, &u.ping.nsc_call); 248*7c478bd9Sstevel@tonic-gate 249*7c478bd9Sstevel@tonic-gate launch_update(&u.ping.nsc_call); 250*7c478bd9Sstevel@tonic-gate (void) sleep(interval); 251*7c478bd9Sstevel@tonic-gate } 252*7c478bd9Sstevel@tonic-gate 253*7c478bd9Sstevel@tonic-gate for (i = 1; i <= keep; i++) { 254*7c478bd9Sstevel@tonic-gate char *tmp; 255*7c478bd9Sstevel@tonic-gate if ((tmp = (char *)table[keep + 1 + i]) != (char *)-1) 256*7c478bd9Sstevel@tonic-gate free(tmp); 257*7c478bd9Sstevel@tonic-gate } 258*7c478bd9Sstevel@tonic-gate 259*7c478bd9Sstevel@tonic-gate free(table); 260*7c478bd9Sstevel@tonic-gate } 261*7c478bd9Sstevel@tonic-gate 262*7c478bd9Sstevel@tonic-gate static void 263*7c478bd9Sstevel@tonic-gate getnode_addrkeepalive(int keep, int interval) 264*7c478bd9Sstevel@tonic-gate { 265*7c478bd9Sstevel@tonic-gate int *table; 266*7c478bd9Sstevel@tonic-gate union { 267*7c478bd9Sstevel@tonic-gate nsc_data_t ping; 268*7c478bd9Sstevel@tonic-gate char space[sizeof (nsc_data_t) + 80]; 269*7c478bd9Sstevel@tonic-gate } u; 270*7c478bd9Sstevel@tonic-gate 271*7c478bd9Sstevel@tonic-gate int i; 272*7c478bd9Sstevel@tonic-gate 273*7c478bd9Sstevel@tonic-gate if (!keep) 274*7c478bd9Sstevel@tonic-gate return; 275*7c478bd9Sstevel@tonic-gate 276*7c478bd9Sstevel@tonic-gate table = maken(keep); 277*7c478bd9Sstevel@tonic-gate (void) mutex_lock(&node_lock); 278*7c478bd9Sstevel@tonic-gate operate_hash(addr_hash, do_findnaddrs, (char *)table); 279*7c478bd9Sstevel@tonic-gate (void) mutex_unlock(&node_lock); 280*7c478bd9Sstevel@tonic-gate 281*7c478bd9Sstevel@tonic-gate for (i = 1; i <= keep; i++) { 282*7c478bd9Sstevel@tonic-gate char *tmp; 283*7c478bd9Sstevel@tonic-gate char addr[IPV6_ADDR_LEN]; 284*7c478bd9Sstevel@tonic-gate 285*7c478bd9Sstevel@tonic-gate u.ping.nsc_call.nsc_callnumber = GETIPNODEBYADDR; 286*7c478bd9Sstevel@tonic-gate 287*7c478bd9Sstevel@tonic-gate if ((tmp = (char *)table[keep + 1 + i]) == (char *)-1) 288*7c478bd9Sstevel@tonic-gate continue; /* enused slot in table */ 289*7c478bd9Sstevel@tonic-gate u.ping.nsc_call.nsc_u.addr.a_type = AF_INET6; 290*7c478bd9Sstevel@tonic-gate u.ping.nsc_call.nsc_u.addr.a_length = IPV6_ADDR_LEN; 291*7c478bd9Sstevel@tonic-gate if (inet_pton(AF_INET6, (const char *) tmp, (void *) addr) != 292*7c478bd9Sstevel@tonic-gate 1) 293*7c478bd9Sstevel@tonic-gate continue; /* illegal address - skip it */ 294*7c478bd9Sstevel@tonic-gate else { 295*7c478bd9Sstevel@tonic-gate (void) memcpy(u.ping.nsc_call.nsc_u.addr.a_data, 296*7c478bd9Sstevel@tonic-gate addr, IPV6_ADDR_LEN); 297*7c478bd9Sstevel@tonic-gate if (current_admin.debug_level >= DBG_ALL) 298*7c478bd9Sstevel@tonic-gate logit("keepalive: reviving address %s\n", tmp); 299*7c478bd9Sstevel@tonic-gate launch_update(&u.ping.nsc_call); 300*7c478bd9Sstevel@tonic-gate } 301*7c478bd9Sstevel@tonic-gate (void) sleep(interval); 302*7c478bd9Sstevel@tonic-gate } 303*7c478bd9Sstevel@tonic-gate 304*7c478bd9Sstevel@tonic-gate for (i = 1; i <= keep; i++) { 305*7c478bd9Sstevel@tonic-gate char *tmp; 306*7c478bd9Sstevel@tonic-gate if ((tmp = (char *)table[keep + 1 + i]) != (char *)-1) 307*7c478bd9Sstevel@tonic-gate free(tmp); 308*7c478bd9Sstevel@tonic-gate } 309*7c478bd9Sstevel@tonic-gate 310*7c478bd9Sstevel@tonic-gate free(table); 311*7c478bd9Sstevel@tonic-gate } 312*7c478bd9Sstevel@tonic-gate 313*7c478bd9Sstevel@tonic-gate /* 314*7c478bd9Sstevel@tonic-gate * This routine marks all entries as invalid 315*7c478bd9Sstevel@tonic-gate * 316*7c478bd9Sstevel@tonic-gate */ 317*7c478bd9Sstevel@tonic-gate 318*7c478bd9Sstevel@tonic-gate void 319*7c478bd9Sstevel@tonic-gate getnode_invalidate(void) 320*7c478bd9Sstevel@tonic-gate { 321*7c478bd9Sstevel@tonic-gate (void) mutex_lock(&node_lock); 322*7c478bd9Sstevel@tonic-gate getnode_invalidate_unlocked(); 323*7c478bd9Sstevel@tonic-gate (void) mutex_unlock(&node_lock); 324*7c478bd9Sstevel@tonic-gate } 325*7c478bd9Sstevel@tonic-gate 326*7c478bd9Sstevel@tonic-gate static void 327*7c478bd9Sstevel@tonic-gate getnode_invalidate_unlocked(void) 328*7c478bd9Sstevel@tonic-gate { 329*7c478bd9Sstevel@tonic-gate operate_hash_addr(nnam_hash, do_invalidate, (char *)GETIPNODEBYNAME); 330*7c478bd9Sstevel@tonic-gate operate_hash_addr(addr_hash, do_invalidate, (char *)GETIPNODEBYADDR); 331*7c478bd9Sstevel@tonic-gate current_admin.node.nsc_invalidate_count++; 332*7c478bd9Sstevel@tonic-gate } 333*7c478bd9Sstevel@tonic-gate 334*7c478bd9Sstevel@tonic-gate /* 335*7c478bd9Sstevel@tonic-gate * Mark only the ipnodebyname cache entries as invalid 336*7c478bd9Sstevel@tonic-gate */ 337*7c478bd9Sstevel@tonic-gate 338*7c478bd9Sstevel@tonic-gate void 339*7c478bd9Sstevel@tonic-gate getnode_name_invalidate(void) 340*7c478bd9Sstevel@tonic-gate { 341*7c478bd9Sstevel@tonic-gate (void) mutex_lock(&node_lock); 342*7c478bd9Sstevel@tonic-gate operate_hash_addr(nnam_hash, do_invalidate, (char *)GETIPNODEBYNAME); 343*7c478bd9Sstevel@tonic-gate current_admin.node.nsc_invalidate_count++; 344*7c478bd9Sstevel@tonic-gate (void) mutex_unlock(&node_lock); 345*7c478bd9Sstevel@tonic-gate } 346*7c478bd9Sstevel@tonic-gate 347*7c478bd9Sstevel@tonic-gate void 348*7c478bd9Sstevel@tonic-gate getnode_lookup(nsc_return_t *out, int maxsize, nsc_call_t *in, time_t now) 349*7c478bd9Sstevel@tonic-gate { 350*7c478bd9Sstevel@tonic-gate int out_of_date; 351*7c478bd9Sstevel@tonic-gate nsc_bucket_t *retb; 352*7c478bd9Sstevel@tonic-gate char **bucket, *key; 353*7c478bd9Sstevel@tonic-gate 354*7c478bd9Sstevel@tonic-gate static time_t lastmod; 355*7c478bd9Sstevel@tonic-gate 356*7c478bd9Sstevel@tonic-gate int bufferspace = maxsize - sizeof (nsc_return_t); 357*7c478bd9Sstevel@tonic-gate 358*7c478bd9Sstevel@tonic-gate if (current_admin.node.nsc_enabled == 0) { 359*7c478bd9Sstevel@tonic-gate out->nsc_return_code = NOSERVER; 360*7c478bd9Sstevel@tonic-gate out->nsc_bufferbytesused = sizeof (*out); 361*7c478bd9Sstevel@tonic-gate return; 362*7c478bd9Sstevel@tonic-gate } 363*7c478bd9Sstevel@tonic-gate 364*7c478bd9Sstevel@tonic-gate (void) mutex_lock(&node_lock); 365*7c478bd9Sstevel@tonic-gate 366*7c478bd9Sstevel@tonic-gate if (current_admin.node.nsc_check_files) { 367*7c478bd9Sstevel@tonic-gate struct stat buf; 368*7c478bd9Sstevel@tonic-gate 369*7c478bd9Sstevel@tonic-gate if (stat("/etc/inet/ipnodes", &buf) < 0) { 370*7c478bd9Sstevel@tonic-gate /*EMPTY*/; 371*7c478bd9Sstevel@tonic-gate } else if (lastmod == 0) { 372*7c478bd9Sstevel@tonic-gate lastmod = buf.st_mtime; 373*7c478bd9Sstevel@tonic-gate } else if (lastmod < buf.st_mtime) { 374*7c478bd9Sstevel@tonic-gate getnode_invalidate_unlocked(); 375*7c478bd9Sstevel@tonic-gate lastmod = buf.st_mtime; 376*7c478bd9Sstevel@tonic-gate } 377*7c478bd9Sstevel@tonic-gate } 378*7c478bd9Sstevel@tonic-gate 379*7c478bd9Sstevel@tonic-gate 380*7c478bd9Sstevel@tonic-gate if (current_admin.debug_level >= DBG_ALL) { 381*7c478bd9Sstevel@tonic-gate if (MASKUPDATEBIT(in->nsc_callnumber) == GETIPNODEBYADDR) { 382*7c478bd9Sstevel@tonic-gate char addr[INET6_ADDRSTRLEN]; 383*7c478bd9Sstevel@tonic-gate safe_inet_ntop(AF_INET6, 384*7c478bd9Sstevel@tonic-gate (const void *)in->nsc_u.addr.a_data, addr, 385*7c478bd9Sstevel@tonic-gate sizeof (addr)); 386*7c478bd9Sstevel@tonic-gate logit("getnode_lookup: looking for address %s\n", addr); 387*7c478bd9Sstevel@tonic-gate } else { 388*7c478bd9Sstevel@tonic-gate logit("getnode_lookup: looking for nodename %s:%d:%d\n", 389*7c478bd9Sstevel@tonic-gate in->nsc_u.ipnode.name, 390*7c478bd9Sstevel@tonic-gate in->nsc_u.ipnode.af_family, 391*7c478bd9Sstevel@tonic-gate in->nsc_u.ipnode.flags); 392*7c478bd9Sstevel@tonic-gate } 393*7c478bd9Sstevel@tonic-gate } 394*7c478bd9Sstevel@tonic-gate 395*7c478bd9Sstevel@tonic-gate for (;;) { 396*7c478bd9Sstevel@tonic-gate if (MASKUPDATEBIT(in->nsc_callnumber) == GETIPNODEBYADDR) { 397*7c478bd9Sstevel@tonic-gate char addr[INET6_ADDRSTRLEN]; 398*7c478bd9Sstevel@tonic-gate if (inet_ntop(AF_INET6, 399*7c478bd9Sstevel@tonic-gate (const void *)in->nsc_u.addr.a_data, 400*7c478bd9Sstevel@tonic-gate addr, sizeof (addr)) == NULL) { 401*7c478bd9Sstevel@tonic-gate out->nsc_errno = NSS_NOTFOUND; 402*7c478bd9Sstevel@tonic-gate out->nsc_return_code = NOTFOUND; 403*7c478bd9Sstevel@tonic-gate out->nsc_bufferbytesused = sizeof (*out); 404*7c478bd9Sstevel@tonic-gate goto getout; 405*7c478bd9Sstevel@tonic-gate } 406*7c478bd9Sstevel@tonic-gate bucket = get_hash(addr_hash, addr); 407*7c478bd9Sstevel@tonic-gate } else { /* bounce excessively long requests */ 408*7c478bd9Sstevel@tonic-gate if (strlen(in->nsc_u.ipnode.name) > NSCDMAXNAMELEN) { 409*7c478bd9Sstevel@tonic-gate ucred_t *uc = NULL; 410*7c478bd9Sstevel@tonic-gate 411*7c478bd9Sstevel@tonic-gate if (door_ucred(&uc) != 0) { 412*7c478bd9Sstevel@tonic-gate logit("getnode_lookup: Name too long, " 413*7c478bd9Sstevel@tonic-gate "but no user credential: %s\n", 414*7c478bd9Sstevel@tonic-gate strerror(errno)); 415*7c478bd9Sstevel@tonic-gate } else { 416*7c478bd9Sstevel@tonic-gate logit("getnode_lookup: Name too long " 417*7c478bd9Sstevel@tonic-gate "from pid %d uid %d\n", 418*7c478bd9Sstevel@tonic-gate ucred_getpid(uc), 419*7c478bd9Sstevel@tonic-gate ucred_getruid(uc)); 420*7c478bd9Sstevel@tonic-gate ucred_free(uc); 421*7c478bd9Sstevel@tonic-gate } 422*7c478bd9Sstevel@tonic-gate 423*7c478bd9Sstevel@tonic-gate out->nsc_errno = NSS_NOTFOUND; 424*7c478bd9Sstevel@tonic-gate out->nsc_return_code = NOTFOUND; 425*7c478bd9Sstevel@tonic-gate out->nsc_bufferbytesused = sizeof (*out); 426*7c478bd9Sstevel@tonic-gate goto getout; 427*7c478bd9Sstevel@tonic-gate } 428*7c478bd9Sstevel@tonic-gate if ((key = get_ipnode_combined_key(in)) == NULL) { 429*7c478bd9Sstevel@tonic-gate 430*7c478bd9Sstevel@tonic-gate out->nsc_errno = NSS_NOTFOUND; 431*7c478bd9Sstevel@tonic-gate out->nsc_return_code = NOTFOUND; 432*7c478bd9Sstevel@tonic-gate out->nsc_bufferbytesused = sizeof (*out); 433*7c478bd9Sstevel@tonic-gate goto getout; 434*7c478bd9Sstevel@tonic-gate } 435*7c478bd9Sstevel@tonic-gate 436*7c478bd9Sstevel@tonic-gate bucket = get_hash(nnam_hash, key); 437*7c478bd9Sstevel@tonic-gate free(key); 438*7c478bd9Sstevel@tonic-gate } 439*7c478bd9Sstevel@tonic-gate 440*7c478bd9Sstevel@tonic-gate if (*bucket == (char *)-1) { /* pending lookup */ 441*7c478bd9Sstevel@tonic-gate if (get_clearance(in->nsc_callnumber) != 0) { 442*7c478bd9Sstevel@tonic-gate /* no threads available */ 443*7c478bd9Sstevel@tonic-gate out->nsc_return_code = NOSERVER; 444*7c478bd9Sstevel@tonic-gate /* cannot process now */ 445*7c478bd9Sstevel@tonic-gate out->nsc_bufferbytesused = sizeof (*out); 446*7c478bd9Sstevel@tonic-gate current_admin.node.nsc_throttle_count++; 447*7c478bd9Sstevel@tonic-gate goto getout; 448*7c478bd9Sstevel@tonic-gate } 449*7c478bd9Sstevel@tonic-gate nscd_wait(&node_wait, &node_lock, bucket); 450*7c478bd9Sstevel@tonic-gate release_clearance(in->nsc_callnumber); 451*7c478bd9Sstevel@tonic-gate continue; /* go back and relookup hash bucket */ 452*7c478bd9Sstevel@tonic-gate } 453*7c478bd9Sstevel@tonic-gate break; 454*7c478bd9Sstevel@tonic-gate } 455*7c478bd9Sstevel@tonic-gate 456*7c478bd9Sstevel@tonic-gate /* 457*7c478bd9Sstevel@tonic-gate * check for no name_service mode 458*7c478bd9Sstevel@tonic-gate */ 459*7c478bd9Sstevel@tonic-gate 460*7c478bd9Sstevel@tonic-gate if (*bucket == NULL && current_admin.avoid_nameservice) { 461*7c478bd9Sstevel@tonic-gate out->nsc_return_code = NOTFOUND; 462*7c478bd9Sstevel@tonic-gate out->nsc_bufferbytesused = sizeof (*out); 463*7c478bd9Sstevel@tonic-gate } else if ((*bucket == NULL) || /* New entry in name service */ 464*7c478bd9Sstevel@tonic-gate (in->nsc_callnumber & UPDATEBIT) || /* needs updating */ 465*7c478bd9Sstevel@tonic-gate (out_of_date = (!current_admin.avoid_nameservice && 466*7c478bd9Sstevel@tonic-gate (current_admin.node.nsc_old_data_ok == 0) && 467*7c478bd9Sstevel@tonic-gate (((nsc_bucket_t *)*bucket)->nsc_timestamp < now)))) { 468*7c478bd9Sstevel@tonic-gate /* time has expired */ 469*7c478bd9Sstevel@tonic-gate int saved_errno; 470*7c478bd9Sstevel@tonic-gate int saved_hits = 0; 471*7c478bd9Sstevel@tonic-gate struct hostent *p; 472*7c478bd9Sstevel@tonic-gate 473*7c478bd9Sstevel@tonic-gate if (get_clearance(in->nsc_callnumber) != 0) { 474*7c478bd9Sstevel@tonic-gate /* no threads available */ 475*7c478bd9Sstevel@tonic-gate out->nsc_return_code = NOSERVER; 476*7c478bd9Sstevel@tonic-gate /* cannot process now */ 477*7c478bd9Sstevel@tonic-gate out->nsc_bufferbytesused = sizeof (* out); 478*7c478bd9Sstevel@tonic-gate current_admin.node.nsc_throttle_count++; 479*7c478bd9Sstevel@tonic-gate goto getout; 480*7c478bd9Sstevel@tonic-gate } 481*7c478bd9Sstevel@tonic-gate 482*7c478bd9Sstevel@tonic-gate if (*bucket != NULL) { 483*7c478bd9Sstevel@tonic-gate saved_hits = ((nsc_bucket_t *)*bucket)->nsc_hits; 484*7c478bd9Sstevel@tonic-gate } 485*7c478bd9Sstevel@tonic-gate 486*7c478bd9Sstevel@tonic-gate /* 487*7c478bd9Sstevel@tonic-gate * block any threads accessing this bucket if data is 488*7c478bd9Sstevel@tonic-gate * non-existent or out of date 489*7c478bd9Sstevel@tonic-gate */ 490*7c478bd9Sstevel@tonic-gate 491*7c478bd9Sstevel@tonic-gate if (*bucket == NULL || out_of_date) { 492*7c478bd9Sstevel@tonic-gate update_node_bucket((nsc_bucket_t **)bucket, 493*7c478bd9Sstevel@tonic-gate (nsc_bucket_t *)-1, 494*7c478bd9Sstevel@tonic-gate in->nsc_callnumber); 495*7c478bd9Sstevel@tonic-gate } else { 496*7c478bd9Sstevel@tonic-gate /* 497*7c478bd9Sstevel@tonic-gate * if still not -1 bucket we are doing update... mark to 498*7c478bd9Sstevel@tonic-gate * prevent pileups of threads if the name service is hanging... 499*7c478bd9Sstevel@tonic-gate */ 500*7c478bd9Sstevel@tonic-gate ((nsc_bucket_t *)(*bucket))->nsc_status |= 501*7c478bd9Sstevel@tonic-gate ST_UPDATE_PENDING; 502*7c478bd9Sstevel@tonic-gate /* cleared by deletion of old data */ 503*7c478bd9Sstevel@tonic-gate } 504*7c478bd9Sstevel@tonic-gate (void) mutex_unlock(&node_lock); 505*7c478bd9Sstevel@tonic-gate 506*7c478bd9Sstevel@tonic-gate if (MASKUPDATEBIT(in->nsc_callnumber) == GETIPNODEBYADDR) { 507*7c478bd9Sstevel@tonic-gate p = _uncached_getipnodebyaddr(in->nsc_u.addr.a_data, 508*7c478bd9Sstevel@tonic-gate in->nsc_u.addr.a_length, 509*7c478bd9Sstevel@tonic-gate in->nsc_u.addr.a_type, 510*7c478bd9Sstevel@tonic-gate &out->nsc_u.hst, 511*7c478bd9Sstevel@tonic-gate out->nsc_u.buff+sizeof (struct hostent), 512*7c478bd9Sstevel@tonic-gate bufferspace, 513*7c478bd9Sstevel@tonic-gate &saved_errno); 514*7c478bd9Sstevel@tonic-gate } else { 515*7c478bd9Sstevel@tonic-gate p = _uncached_getipnodebyname(in->nsc_u.ipnode.name, 516*7c478bd9Sstevel@tonic-gate &out->nsc_u.hst, 517*7c478bd9Sstevel@tonic-gate out->nsc_u.buff+sizeof (struct hostent), 518*7c478bd9Sstevel@tonic-gate bufferspace, 519*7c478bd9Sstevel@tonic-gate in->nsc_u.ipnode.af_family, 520*7c478bd9Sstevel@tonic-gate in->nsc_u.ipnode.flags, 521*7c478bd9Sstevel@tonic-gate &saved_errno); 522*7c478bd9Sstevel@tonic-gate } 523*7c478bd9Sstevel@tonic-gate 524*7c478bd9Sstevel@tonic-gate (void) mutex_lock(&node_lock); 525*7c478bd9Sstevel@tonic-gate 526*7c478bd9Sstevel@tonic-gate release_clearance(in->nsc_callnumber); 527*7c478bd9Sstevel@tonic-gate 528*7c478bd9Sstevel@tonic-gate if (p == NULL) { /* data not found */ 529*7c478bd9Sstevel@tonic-gate if (current_admin.debug_level >= DBG_CANT_FIND) { 530*7c478bd9Sstevel@tonic-gate if (MASKUPDATEBIT(in->nsc_callnumber) == 531*7c478bd9Sstevel@tonic-gate GETIPNODEBYADDR) { 532*7c478bd9Sstevel@tonic-gate char addr[INET6_ADDRSTRLEN]; 533*7c478bd9Sstevel@tonic-gate safe_inet_ntop(AF_INET6, 534*7c478bd9Sstevel@tonic-gate (const void *)in->nsc_u.addr.a_data, 535*7c478bd9Sstevel@tonic-gate addr, sizeof (addr)); 536*7c478bd9Sstevel@tonic-gate logit("getnode_lookup: nscd COULDN'T "\ 537*7c478bd9Sstevel@tonic-gate "FIND address %s\n", addr); 538*7c478bd9Sstevel@tonic-gate } else { 539*7c478bd9Sstevel@tonic-gate logit("getnode_lookup: nscd COULDN'T "\ 540*7c478bd9Sstevel@tonic-gate "FIND node name %s:%d:%d\n", 541*7c478bd9Sstevel@tonic-gate in->nsc_u.ipnode.name, 542*7c478bd9Sstevel@tonic-gate in->nsc_u.ipnode.af_family, 543*7c478bd9Sstevel@tonic-gate in->nsc_u.ipnode.flags); 544*7c478bd9Sstevel@tonic-gate } 545*7c478bd9Sstevel@tonic-gate } 546*7c478bd9Sstevel@tonic-gate 547*7c478bd9Sstevel@tonic-gate if (!(UPDATEBIT & in->nsc_callnumber)) 548*7c478bd9Sstevel@tonic-gate current_admin.node.nsc_neg_cache_misses++; 549*7c478bd9Sstevel@tonic-gate 550*7c478bd9Sstevel@tonic-gate retb = (nsc_bucket_t *)malloc(sizeof (nsc_bucket_t)); 551*7c478bd9Sstevel@tonic-gate retb->nsc_refcount = 1; 552*7c478bd9Sstevel@tonic-gate retb->nsc_data.nsc_return_code = NOTFOUND; 553*7c478bd9Sstevel@tonic-gate retb->nsc_data.nsc_bufferbytesused = 554*7c478bd9Sstevel@tonic-gate sizeof (nsc_return_t); 555*7c478bd9Sstevel@tonic-gate retb->nsc_data.nsc_errno = saved_errno; 556*7c478bd9Sstevel@tonic-gate (void) memcpy(out, &(retb->nsc_data), 557*7c478bd9Sstevel@tonic-gate retb->nsc_data.nsc_bufferbytesused); 558*7c478bd9Sstevel@tonic-gate update_node_bucket((nsc_bucket_t **)bucket, retb, 559*7c478bd9Sstevel@tonic-gate in->nsc_callnumber); 560*7c478bd9Sstevel@tonic-gate goto getout; 561*7c478bd9Sstevel@tonic-gate } 562*7c478bd9Sstevel@tonic-gate 563*7c478bd9Sstevel@tonic-gate else { 564*7c478bd9Sstevel@tonic-gate if (current_admin.debug_level >= DBG_ALL) { 565*7c478bd9Sstevel@tonic-gate if (MASKUPDATEBIT(in->nsc_callnumber) == 566*7c478bd9Sstevel@tonic-gate GETIPNODEBYADDR) { 567*7c478bd9Sstevel@tonic-gate char addr[INET6_ADDRSTRLEN]; 568*7c478bd9Sstevel@tonic-gate safe_inet_ntop(AF_INET6, 569*7c478bd9Sstevel@tonic-gate (const void *)in->nsc_u.addr.a_data, 570*7c478bd9Sstevel@tonic-gate addr, sizeof (addr)); 571*7c478bd9Sstevel@tonic-gate logit("getnode_lookup: nscd FOUND "\ 572*7c478bd9Sstevel@tonic-gate "addr %s\n", addr); 573*7c478bd9Sstevel@tonic-gate } else { 574*7c478bd9Sstevel@tonic-gate logit("getnode_lookup: nscd FOUND "\ 575*7c478bd9Sstevel@tonic-gate "node name %s:%d:%d\n", 576*7c478bd9Sstevel@tonic-gate in->nsc_u.ipnode.name, 577*7c478bd9Sstevel@tonic-gate in->nsc_u.ipnode.af_family, 578*7c478bd9Sstevel@tonic-gate in->nsc_u.ipnode.flags); 579*7c478bd9Sstevel@tonic-gate } 580*7c478bd9Sstevel@tonic-gate } 581*7c478bd9Sstevel@tonic-gate if (!(UPDATEBIT & in->nsc_callnumber)) 582*7c478bd9Sstevel@tonic-gate current_admin.node.nsc_pos_cache_misses++; 583*7c478bd9Sstevel@tonic-gate 584*7c478bd9Sstevel@tonic-gate retb = fixbuffer(out, bufferspace); 585*7c478bd9Sstevel@tonic-gate 586*7c478bd9Sstevel@tonic-gate update_node_bucket((nsc_bucket_t **)bucket, retb, 587*7c478bd9Sstevel@tonic-gate in->nsc_callnumber); 588*7c478bd9Sstevel@tonic-gate if (saved_hits) 589*7c478bd9Sstevel@tonic-gate retb->nsc_hits = saved_hits; 590*7c478bd9Sstevel@tonic-gate } 591*7c478bd9Sstevel@tonic-gate } else { /* found entry in cache */ 592*7c478bd9Sstevel@tonic-gate retb = (nsc_bucket_t *)*bucket; 593*7c478bd9Sstevel@tonic-gate 594*7c478bd9Sstevel@tonic-gate retb->nsc_hits++; 595*7c478bd9Sstevel@tonic-gate 596*7c478bd9Sstevel@tonic-gate (void) memcpy(out, &(retb->nsc_data), 597*7c478bd9Sstevel@tonic-gate retb->nsc_data.nsc_bufferbytesused); 598*7c478bd9Sstevel@tonic-gate 599*7c478bd9Sstevel@tonic-gate if (out->nsc_return_code == SUCCESS) { 600*7c478bd9Sstevel@tonic-gate if (!(UPDATEBIT & in->nsc_callnumber)) 601*7c478bd9Sstevel@tonic-gate current_admin.node.nsc_pos_cache_hits++; 602*7c478bd9Sstevel@tonic-gate if (current_admin.debug_level >= DBG_ALL) { 603*7c478bd9Sstevel@tonic-gate if (MASKUPDATEBIT(in->nsc_callnumber) == 604*7c478bd9Sstevel@tonic-gate GETIPNODEBYADDR) { 605*7c478bd9Sstevel@tonic-gate char addr[INET6_ADDRSTRLEN]; 606*7c478bd9Sstevel@tonic-gate safe_inet_ntop(AF_INET6, 607*7c478bd9Sstevel@tonic-gate (const void *)in->nsc_u.addr.a_data, 608*7c478bd9Sstevel@tonic-gate addr, sizeof (addr)); 609*7c478bd9Sstevel@tonic-gate logit("getnode_lookup: found address "\ 610*7c478bd9Sstevel@tonic-gate "%s in cache\n", addr); 611*7c478bd9Sstevel@tonic-gate } else { 612*7c478bd9Sstevel@tonic-gate logit("getnode_lookup: found node "\ 613*7c478bd9Sstevel@tonic-gate "name %s:%d:%d in cache\n", 614*7c478bd9Sstevel@tonic-gate in->nsc_u.ipnode.name, 615*7c478bd9Sstevel@tonic-gate in->nsc_u.ipnode.af_family, 616*7c478bd9Sstevel@tonic-gate in->nsc_u.ipnode.flags); 617*7c478bd9Sstevel@tonic-gate } 618*7c478bd9Sstevel@tonic-gate } 619*7c478bd9Sstevel@tonic-gate } else { 620*7c478bd9Sstevel@tonic-gate if (!(UPDATEBIT & in->nsc_callnumber)) 621*7c478bd9Sstevel@tonic-gate current_admin.node.nsc_neg_cache_hits++; 622*7c478bd9Sstevel@tonic-gate if (current_admin.debug_level >= DBG_ALL) { 623*7c478bd9Sstevel@tonic-gate if (MASKUPDATEBIT(in->nsc_callnumber) == 624*7c478bd9Sstevel@tonic-gate GETIPNODEBYADDR) { 625*7c478bd9Sstevel@tonic-gate char addr[INET6_ADDRSTRLEN]; 626*7c478bd9Sstevel@tonic-gate safe_inet_ntop(AF_INET6, 627*7c478bd9Sstevel@tonic-gate (const void *)in->nsc_u.addr.a_data, 628*7c478bd9Sstevel@tonic-gate addr, sizeof (addr)); 629*7c478bd9Sstevel@tonic-gate logit("getnode_lookup: %s marked as "\ 630*7c478bd9Sstevel@tonic-gate "NOT FOUND in cache.\n", addr); 631*7c478bd9Sstevel@tonic-gate } else { 632*7c478bd9Sstevel@tonic-gate logit("getnode_lookup: %s:%d:%d marked"\ 633*7c478bd9Sstevel@tonic-gate " as NOT FOUND in cache.\n", 634*7c478bd9Sstevel@tonic-gate in->nsc_u.ipnode.name, 635*7c478bd9Sstevel@tonic-gate in->nsc_u.ipnode.af_family, 636*7c478bd9Sstevel@tonic-gate in->nsc_u.ipnode.flags); 637*7c478bd9Sstevel@tonic-gate } 638*7c478bd9Sstevel@tonic-gate } 639*7c478bd9Sstevel@tonic-gate } 640*7c478bd9Sstevel@tonic-gate 641*7c478bd9Sstevel@tonic-gate if ((retb->nsc_timestamp < now) && 642*7c478bd9Sstevel@tonic-gate !(in->nsc_callnumber & UPDATEBIT) && 643*7c478bd9Sstevel@tonic-gate !(retb->nsc_status & ST_UPDATE_PENDING)) { 644*7c478bd9Sstevel@tonic-gate logit("launch update since time = %d\n", 645*7c478bd9Sstevel@tonic-gate retb->nsc_timestamp); 646*7c478bd9Sstevel@tonic-gate retb->nsc_status |= ST_UPDATE_PENDING; 647*7c478bd9Sstevel@tonic-gate /* cleared by deletion of old data */ 648*7c478bd9Sstevel@tonic-gate launch_update(in); 649*7c478bd9Sstevel@tonic-gate } 650*7c478bd9Sstevel@tonic-gate } 651*7c478bd9Sstevel@tonic-gate 652*7c478bd9Sstevel@tonic-gate getout: 653*7c478bd9Sstevel@tonic-gate 654*7c478bd9Sstevel@tonic-gate (void) mutex_unlock(&node_lock); 655*7c478bd9Sstevel@tonic-gate } 656*7c478bd9Sstevel@tonic-gate 657*7c478bd9Sstevel@tonic-gate 658*7c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 659*7c478bd9Sstevel@tonic-gate static void 660*7c478bd9Sstevel@tonic-gate update_node_bucket(nsc_bucket_t ** old, nsc_bucket_t *new, int callnumber) 661*7c478bd9Sstevel@tonic-gate { 662*7c478bd9Sstevel@tonic-gate if (*old != NULL && *old != (nsc_bucket_t *)-1) { /* old data exists */ 663*7c478bd9Sstevel@tonic-gate free(*old); 664*7c478bd9Sstevel@tonic-gate current_admin.node.nsc_entries--; 665*7c478bd9Sstevel@tonic-gate } 666*7c478bd9Sstevel@tonic-gate 667*7c478bd9Sstevel@tonic-gate /* 668*7c478bd9Sstevel@tonic-gate * we can do this before reseting *old since we're holding the lock 669*7c478bd9Sstevel@tonic-gate */ 670*7c478bd9Sstevel@tonic-gate 671*7c478bd9Sstevel@tonic-gate else if (*old == (nsc_bucket_t *)-1) { 672*7c478bd9Sstevel@tonic-gate nscd_signal(&node_wait, (char **)old); 673*7c478bd9Sstevel@tonic-gate } 674*7c478bd9Sstevel@tonic-gate 675*7c478bd9Sstevel@tonic-gate *old = new; 676*7c478bd9Sstevel@tonic-gate 677*7c478bd9Sstevel@tonic-gate if ((new != NULL) && 678*7c478bd9Sstevel@tonic-gate (new != (nsc_bucket_t *)-1)) { 679*7c478bd9Sstevel@tonic-gate /* real data, not just update pending or invalidate */ 680*7c478bd9Sstevel@tonic-gate 681*7c478bd9Sstevel@tonic-gate new->nsc_hits = 1; 682*7c478bd9Sstevel@tonic-gate new->nsc_status = 0; 683*7c478bd9Sstevel@tonic-gate new->nsc_refcount = 1; 684*7c478bd9Sstevel@tonic-gate current_admin.node.nsc_entries++; 685*7c478bd9Sstevel@tonic-gate 686*7c478bd9Sstevel@tonic-gate if (new->nsc_data.nsc_return_code == SUCCESS) { 687*7c478bd9Sstevel@tonic-gate new->nsc_timestamp = time(NULL) + 688*7c478bd9Sstevel@tonic-gate current_admin.node.nsc_pos_ttl; 689*7c478bd9Sstevel@tonic-gate } else { 690*7c478bd9Sstevel@tonic-gate new->nsc_timestamp = time(NULL) + 691*7c478bd9Sstevel@tonic-gate current_admin.node.nsc_neg_ttl; 692*7c478bd9Sstevel@tonic-gate } 693*7c478bd9Sstevel@tonic-gate } 694*7c478bd9Sstevel@tonic-gate } 695*7c478bd9Sstevel@tonic-gate 696*7c478bd9Sstevel@tonic-gate /* Allocate a bucket to fit the data(nsc_return_t *in size) */ 697*7c478bd9Sstevel@tonic-gate /* copy the data into the bucket and return the bucket */ 698*7c478bd9Sstevel@tonic-gate 699*7c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 700*7c478bd9Sstevel@tonic-gate static nsc_bucket_t * 701*7c478bd9Sstevel@tonic-gate fixbuffer(nsc_return_t *in, int maxlen) 702*7c478bd9Sstevel@tonic-gate { 703*7c478bd9Sstevel@tonic-gate nsc_return_t *out; 704*7c478bd9Sstevel@tonic-gate nsc_bucket_t *retb; 705*7c478bd9Sstevel@tonic-gate char *dest; 706*7c478bd9Sstevel@tonic-gate char ** aliaseslist; 707*7c478bd9Sstevel@tonic-gate char ** addrlist; 708*7c478bd9Sstevel@tonic-gate int offset; 709*7c478bd9Sstevel@tonic-gate int strs; 710*7c478bd9Sstevel@tonic-gate int i; 711*7c478bd9Sstevel@tonic-gate int numaliases; 712*7c478bd9Sstevel@tonic-gate int numaddrs; 713*7c478bd9Sstevel@tonic-gate 714*7c478bd9Sstevel@tonic-gate /* find out the size of the data block we're going to need */ 715*7c478bd9Sstevel@tonic-gate 716*7c478bd9Sstevel@tonic-gate strs = 1 + strlen(in->nsc_u.hst.h_name); 717*7c478bd9Sstevel@tonic-gate for (numaliases = 0; in->nsc_u.hst.h_aliases[numaliases]; numaliases++) 718*7c478bd9Sstevel@tonic-gate strs += 1 + strlen(in->nsc_u.hst.h_aliases[numaliases]); 719*7c478bd9Sstevel@tonic-gate strs += sizeof (char *) * (numaliases+1); 720*7c478bd9Sstevel@tonic-gate for (numaddrs = 0; in->nsc_u.hst.h_addr_list[numaddrs]; numaddrs++) 721*7c478bd9Sstevel@tonic-gate strs += in->nsc_u.hst.h_length; 722*7c478bd9Sstevel@tonic-gate strs += sizeof (char *) * (numaddrs+1+3); 723*7c478bd9Sstevel@tonic-gate 724*7c478bd9Sstevel@tonic-gate /* allocate it and copy it in code doesn't assume packing */ 725*7c478bd9Sstevel@tonic-gate /* order in original buffer */ 726*7c478bd9Sstevel@tonic-gate 727*7c478bd9Sstevel@tonic-gate if ((retb = (nsc_bucket_t *)malloc(sizeof (*retb) + strs)) == NULL) { 728*7c478bd9Sstevel@tonic-gate return (NULL); 729*7c478bd9Sstevel@tonic-gate } 730*7c478bd9Sstevel@tonic-gate 731*7c478bd9Sstevel@tonic-gate out = &(retb->nsc_data); 732*7c478bd9Sstevel@tonic-gate out->nsc_bufferbytesused = sizeof (*in) + strs; 733*7c478bd9Sstevel@tonic-gate out->nsc_return_code = SUCCESS; 734*7c478bd9Sstevel@tonic-gate out->nsc_errno = 0; 735*7c478bd9Sstevel@tonic-gate 736*7c478bd9Sstevel@tonic-gate dest = retb->nsc_data.nsc_u.buff + sizeof (struct hostent); 737*7c478bd9Sstevel@tonic-gate offset = (int)dest; 738*7c478bd9Sstevel@tonic-gate 739*7c478bd9Sstevel@tonic-gate /* allocat the h_aliases list and the h_addr_list first to align 'em. */ 740*7c478bd9Sstevel@tonic-gate aliaseslist = (char **)dest; 741*7c478bd9Sstevel@tonic-gate 742*7c478bd9Sstevel@tonic-gate dest += sizeof (char *) * (numaliases+1); 743*7c478bd9Sstevel@tonic-gate 744*7c478bd9Sstevel@tonic-gate addrlist = (char **)dest; 745*7c478bd9Sstevel@tonic-gate 746*7c478bd9Sstevel@tonic-gate dest += sizeof (char *) * (numaddrs+1); 747*7c478bd9Sstevel@tonic-gate 748*7c478bd9Sstevel@tonic-gate (void) strcpy(dest, in->nsc_u.hst.h_name); 749*7c478bd9Sstevel@tonic-gate strs = 1 + strlen(in->nsc_u.hst.h_name); 750*7c478bd9Sstevel@tonic-gate out->nsc_u.hst.h_name = dest - offset; 751*7c478bd9Sstevel@tonic-gate dest += strs; 752*7c478bd9Sstevel@tonic-gate 753*7c478bd9Sstevel@tonic-gate 754*7c478bd9Sstevel@tonic-gate /* fill out the h_aliases list */ 755*7c478bd9Sstevel@tonic-gate 756*7c478bd9Sstevel@tonic-gate for (i = 0; i < numaliases; i++) { 757*7c478bd9Sstevel@tonic-gate (void) strcpy(dest, in->nsc_u.hst.h_aliases[i]); 758*7c478bd9Sstevel@tonic-gate strs = 1 + strlen(in->nsc_u.hst.h_aliases[i]); 759*7c478bd9Sstevel@tonic-gate aliaseslist[i] = dest - offset; 760*7c478bd9Sstevel@tonic-gate dest += strs; 761*7c478bd9Sstevel@tonic-gate } 762*7c478bd9Sstevel@tonic-gate aliaseslist[i] = 0; /* null term ptr chain */ 763*7c478bd9Sstevel@tonic-gate 764*7c478bd9Sstevel@tonic-gate out->nsc_u.hst.h_aliases = (char **)((int)aliaseslist-offset); 765*7c478bd9Sstevel@tonic-gate 766*7c478bd9Sstevel@tonic-gate /* fill out the h_addr list */ 767*7c478bd9Sstevel@tonic-gate 768*7c478bd9Sstevel@tonic-gate dest = (char *)(((int)dest + 3) & ~3); 769*7c478bd9Sstevel@tonic-gate 770*7c478bd9Sstevel@tonic-gate for (i = 0; i < numaddrs; i++) { 771*7c478bd9Sstevel@tonic-gate (void) memcpy(dest, in->nsc_u.hst.h_addr_list[i], 772*7c478bd9Sstevel@tonic-gate in->nsc_u.hst.h_length); 773*7c478bd9Sstevel@tonic-gate strs = in->nsc_u.hst.h_length; 774*7c478bd9Sstevel@tonic-gate addrlist[i] = dest - offset; 775*7c478bd9Sstevel@tonic-gate dest += strs; 776*7c478bd9Sstevel@tonic-gate dest = (char *)(((int)dest + 3) & ~3); 777*7c478bd9Sstevel@tonic-gate } 778*7c478bd9Sstevel@tonic-gate 779*7c478bd9Sstevel@tonic-gate addrlist[i] = 0; /* null term ptr chain */ 780*7c478bd9Sstevel@tonic-gate 781*7c478bd9Sstevel@tonic-gate out->nsc_u.hst.h_addr_list = (char **)((int)addrlist-offset); 782*7c478bd9Sstevel@tonic-gate 783*7c478bd9Sstevel@tonic-gate out->nsc_u.hst.h_length = in->nsc_u.hst.h_length; 784*7c478bd9Sstevel@tonic-gate out->nsc_u.hst.h_addrtype = in->nsc_u.hst.h_addrtype; 785*7c478bd9Sstevel@tonic-gate 786*7c478bd9Sstevel@tonic-gate (void) memcpy(in, &(retb->nsc_data), 787*7c478bd9Sstevel@tonic-gate retb->nsc_data.nsc_bufferbytesused); 788*7c478bd9Sstevel@tonic-gate 789*7c478bd9Sstevel@tonic-gate return (retb); 790*7c478bd9Sstevel@tonic-gate 791*7c478bd9Sstevel@tonic-gate } 792*7c478bd9Sstevel@tonic-gate 793*7c478bd9Sstevel@tonic-gate void 794*7c478bd9Sstevel@tonic-gate getnode_nam_reaper() 795*7c478bd9Sstevel@tonic-gate { 796*7c478bd9Sstevel@tonic-gate nsc_reaper("getnode_nam", nnam_hash, ¤t_admin.node, &node_lock); 797*7c478bd9Sstevel@tonic-gate } 798*7c478bd9Sstevel@tonic-gate 799*7c478bd9Sstevel@tonic-gate void 800*7c478bd9Sstevel@tonic-gate getnode_addr_reaper() 801*7c478bd9Sstevel@tonic-gate { 802*7c478bd9Sstevel@tonic-gate nsc_reaper("getnode_addr", addr_hash, ¤t_admin.node, &node_lock); 803*7c478bd9Sstevel@tonic-gate } 804