1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * Copyright 1997-2002 Sun Microsystems, Inc. All rights reserved. 3*0Sstevel@tonic-gate * Use is subject to license terms. 4*0Sstevel@tonic-gate */ 5*0Sstevel@tonic-gate 6*0Sstevel@tonic-gate /* 7*0Sstevel@tonic-gate * Copyright (c) 1996,1999 by Internet Software Consortium. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * Permission to use, copy, modify, and distribute this software for any 10*0Sstevel@tonic-gate * purpose with or without fee is hereby granted, provided that the above 11*0Sstevel@tonic-gate * copyright notice and this permission notice appear in all copies. 12*0Sstevel@tonic-gate * 13*0Sstevel@tonic-gate * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS 14*0Sstevel@tonic-gate * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES 15*0Sstevel@tonic-gate * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE 16*0Sstevel@tonic-gate * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 17*0Sstevel@tonic-gate * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 18*0Sstevel@tonic-gate * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 19*0Sstevel@tonic-gate * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 20*0Sstevel@tonic-gate * SOFTWARE. 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate 23*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 24*0Sstevel@tonic-gate 25*0Sstevel@tonic-gate #if !defined(LINT) && !defined(CODECENTER) 26*0Sstevel@tonic-gate static const char rcsid[] = "$Id: gen_ng.c,v 1.15 2001/05/29 05:48:38 marka Exp $"; 27*0Sstevel@tonic-gate #endif 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate /* Imports */ 30*0Sstevel@tonic-gate 31*0Sstevel@tonic-gate #include "port_before.h" 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate #include <sys/types.h> 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate #include <netinet/in.h> 36*0Sstevel@tonic-gate #include <arpa/nameser.h> 37*0Sstevel@tonic-gate #include <resolv.h> 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate #include <errno.h> 40*0Sstevel@tonic-gate #include <stdlib.h> 41*0Sstevel@tonic-gate #include <string.h> 42*0Sstevel@tonic-gate 43*0Sstevel@tonic-gate #include <isc/memcluster.h> 44*0Sstevel@tonic-gate #include <irs.h> 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate #include "port_after.h" 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate #include "irs_p.h" 49*0Sstevel@tonic-gate #include "gen_p.h" 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate /* Types */ 52*0Sstevel@tonic-gate 53*0Sstevel@tonic-gate struct pvt { 54*0Sstevel@tonic-gate struct irs_rule * rules; 55*0Sstevel@tonic-gate struct irs_rule * rule; 56*0Sstevel@tonic-gate char * curgroup; 57*0Sstevel@tonic-gate }; 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate /* Forward */ 60*0Sstevel@tonic-gate 61*0Sstevel@tonic-gate static void ng_close(struct irs_ng *); 62*0Sstevel@tonic-gate static int ng_next(struct irs_ng *, const char **, 63*0Sstevel@tonic-gate const char **, const char **); 64*0Sstevel@tonic-gate static int ng_test(struct irs_ng *, const char *, 65*0Sstevel@tonic-gate const char *, const char *, 66*0Sstevel@tonic-gate const char *); 67*0Sstevel@tonic-gate static void ng_rewind(struct irs_ng *, const char *); 68*0Sstevel@tonic-gate static void ng_minimize(struct irs_ng *); 69*0Sstevel@tonic-gate 70*0Sstevel@tonic-gate /* Public */ 71*0Sstevel@tonic-gate 72*0Sstevel@tonic-gate struct irs_ng * 73*0Sstevel@tonic-gate irs_gen_ng(struct irs_acc *this) { 74*0Sstevel@tonic-gate struct gen_p *accpvt = (struct gen_p *)this->private; 75*0Sstevel@tonic-gate struct irs_ng *ng; 76*0Sstevel@tonic-gate struct pvt *pvt; 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate if (!(ng = memget(sizeof *ng))) { 79*0Sstevel@tonic-gate errno = ENOMEM; 80*0Sstevel@tonic-gate return (NULL); 81*0Sstevel@tonic-gate } 82*0Sstevel@tonic-gate memset(ng, 0x5e, sizeof *ng); 83*0Sstevel@tonic-gate if (!(pvt = memget(sizeof *pvt))) { 84*0Sstevel@tonic-gate memput(ng, sizeof *ng); 85*0Sstevel@tonic-gate errno = ENOMEM; 86*0Sstevel@tonic-gate return (NULL); 87*0Sstevel@tonic-gate } 88*0Sstevel@tonic-gate memset(pvt, 0, sizeof *pvt); 89*0Sstevel@tonic-gate pvt->rules = accpvt->map_rules[irs_ng]; 90*0Sstevel@tonic-gate pvt->rule = pvt->rules; 91*0Sstevel@tonic-gate ng->private = pvt; 92*0Sstevel@tonic-gate ng->close = ng_close; 93*0Sstevel@tonic-gate ng->next = ng_next; 94*0Sstevel@tonic-gate ng->test = ng_test; 95*0Sstevel@tonic-gate ng->rewind = ng_rewind; 96*0Sstevel@tonic-gate ng->minimize = ng_minimize; 97*0Sstevel@tonic-gate return (ng); 98*0Sstevel@tonic-gate } 99*0Sstevel@tonic-gate 100*0Sstevel@tonic-gate /* Methods */ 101*0Sstevel@tonic-gate 102*0Sstevel@tonic-gate static void 103*0Sstevel@tonic-gate ng_close(struct irs_ng *this) { 104*0Sstevel@tonic-gate struct pvt *pvt = (struct pvt *)this->private; 105*0Sstevel@tonic-gate 106*0Sstevel@tonic-gate ng_minimize(this); 107*0Sstevel@tonic-gate if (pvt->curgroup) 108*0Sstevel@tonic-gate free(pvt->curgroup); 109*0Sstevel@tonic-gate memput(pvt, sizeof *pvt); 110*0Sstevel@tonic-gate memput(this, sizeof *this); 111*0Sstevel@tonic-gate } 112*0Sstevel@tonic-gate 113*0Sstevel@tonic-gate static int 114*0Sstevel@tonic-gate ng_next(struct irs_ng *this, const char **host, const char **user, 115*0Sstevel@tonic-gate const char **domain) 116*0Sstevel@tonic-gate { 117*0Sstevel@tonic-gate struct pvt *pvt = (struct pvt *)this->private; 118*0Sstevel@tonic-gate struct irs_ng *ng; 119*0Sstevel@tonic-gate 120*0Sstevel@tonic-gate while (pvt->rule) { 121*0Sstevel@tonic-gate ng = pvt->rule->inst->ng; 122*0Sstevel@tonic-gate if ((*ng->next)(ng, host, user, domain) == 1) 123*0Sstevel@tonic-gate return (1); 124*0Sstevel@tonic-gate if (!(pvt->rule->flags & IRS_CONTINUE)) 125*0Sstevel@tonic-gate break; 126*0Sstevel@tonic-gate pvt->rule = pvt->rule->next; 127*0Sstevel@tonic-gate if (pvt->rule) { 128*0Sstevel@tonic-gate ng = pvt->rule->inst->ng; 129*0Sstevel@tonic-gate (*ng->rewind)(ng, pvt->curgroup); 130*0Sstevel@tonic-gate } 131*0Sstevel@tonic-gate } 132*0Sstevel@tonic-gate return (0); 133*0Sstevel@tonic-gate } 134*0Sstevel@tonic-gate 135*0Sstevel@tonic-gate static int 136*0Sstevel@tonic-gate ng_test(struct irs_ng *this, const char *name, 137*0Sstevel@tonic-gate const char *user, const char *host, const char *domain) 138*0Sstevel@tonic-gate { 139*0Sstevel@tonic-gate struct pvt *pvt = (struct pvt *)this->private; 140*0Sstevel@tonic-gate struct irs_rule *rule; 141*0Sstevel@tonic-gate struct irs_ng *ng; 142*0Sstevel@tonic-gate int rval; 143*0Sstevel@tonic-gate 144*0Sstevel@tonic-gate rval = 0; 145*0Sstevel@tonic-gate for (rule = pvt->rules; rule; rule = rule->next) { 146*0Sstevel@tonic-gate ng = rule->inst->ng; 147*0Sstevel@tonic-gate rval = (*ng->test)(ng, name, user, host, domain); 148*0Sstevel@tonic-gate if (rval || !(rule->flags & IRS_CONTINUE)) 149*0Sstevel@tonic-gate break; 150*0Sstevel@tonic-gate } 151*0Sstevel@tonic-gate return (rval); 152*0Sstevel@tonic-gate } 153*0Sstevel@tonic-gate 154*0Sstevel@tonic-gate static void 155*0Sstevel@tonic-gate ng_rewind(struct irs_ng *this, const char *group) { 156*0Sstevel@tonic-gate struct pvt *pvt = (struct pvt *)this->private; 157*0Sstevel@tonic-gate struct irs_ng *ng; 158*0Sstevel@tonic-gate 159*0Sstevel@tonic-gate pvt->rule = pvt->rules; 160*0Sstevel@tonic-gate if (pvt->rule) { 161*0Sstevel@tonic-gate if (pvt->curgroup) 162*0Sstevel@tonic-gate free(pvt->curgroup); 163*0Sstevel@tonic-gate pvt->curgroup = strdup(group); 164*0Sstevel@tonic-gate ng = pvt->rule->inst->ng; 165*0Sstevel@tonic-gate (*ng->rewind)(ng, pvt->curgroup); 166*0Sstevel@tonic-gate } 167*0Sstevel@tonic-gate } 168*0Sstevel@tonic-gate 169*0Sstevel@tonic-gate static void 170*0Sstevel@tonic-gate ng_minimize(struct irs_ng *this) { 171*0Sstevel@tonic-gate struct pvt *pvt = (struct pvt *)this->private; 172*0Sstevel@tonic-gate struct irs_rule *rule; 173*0Sstevel@tonic-gate 174*0Sstevel@tonic-gate for (rule = pvt->rules; rule != NULL; rule = rule->next) { 175*0Sstevel@tonic-gate struct irs_ng *ng = rule->inst->ng; 176*0Sstevel@tonic-gate 177*0Sstevel@tonic-gate (*ng->minimize)(ng); 178*0Sstevel@tonic-gate } 179*0Sstevel@tonic-gate } 180