1*64a07b54Sjoerg /* $NetBSD: sem.c,v 1.68 2014/11/04 23:00:35 joerg Exp $ */ 25ecc953bSthorpej 35ecc953bSthorpej /* 45ecc953bSthorpej * Copyright (c) 1992, 1993 55ecc953bSthorpej * The Regents of the University of California. All rights reserved. 65ecc953bSthorpej * 75ecc953bSthorpej * This software was developed by the Computer Systems Engineering group 85ecc953bSthorpej * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 95ecc953bSthorpej * contributed to Berkeley. 105ecc953bSthorpej * 115ecc953bSthorpej * All advertising materials mentioning features or use of this software 125ecc953bSthorpej * must display the following acknowledgement: 135ecc953bSthorpej * This product includes software developed by the University of 145ecc953bSthorpej * California, Lawrence Berkeley Laboratories. 155ecc953bSthorpej * 165ecc953bSthorpej * Redistribution and use in source and binary forms, with or without 175ecc953bSthorpej * modification, are permitted provided that the following conditions 185ecc953bSthorpej * are met: 195ecc953bSthorpej * 1. Redistributions of source code must retain the above copyright 205ecc953bSthorpej * notice, this list of conditions and the following disclaimer. 215ecc953bSthorpej * 2. Redistributions in binary form must reproduce the above copyright 225ecc953bSthorpej * notice, this list of conditions and the following disclaimer in the 235ecc953bSthorpej * documentation and/or other materials provided with the distribution. 245ecc953bSthorpej * 3. Neither the name of the University nor the names of its contributors 255ecc953bSthorpej * may be used to endorse or promote products derived from this software 265ecc953bSthorpej * without specific prior written permission. 275ecc953bSthorpej * 285ecc953bSthorpej * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 295ecc953bSthorpej * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 305ecc953bSthorpej * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 315ecc953bSthorpej * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 325ecc953bSthorpej * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 335ecc953bSthorpej * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 345ecc953bSthorpej * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 355ecc953bSthorpej * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 365ecc953bSthorpej * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 375ecc953bSthorpej * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 385ecc953bSthorpej * SUCH DAMAGE. 395ecc953bSthorpej * 405ecc953bSthorpej * from: @(#)sem.c 8.1 (Berkeley) 6/6/93 415ecc953bSthorpej */ 425ecc953bSthorpej 435ecc953bSthorpej #if HAVE_NBTOOL_CONFIG_H 445ecc953bSthorpej #include "nbtool_config.h" 455ecc953bSthorpej #endif 465ecc953bSthorpej 479a7f4bbaSchristos #include <sys/cdefs.h> 48*64a07b54Sjoerg __RCSID("$NetBSD: sem.c,v 1.68 2014/11/04 23:00:35 joerg Exp $"); 499a7f4bbaSchristos 505ecc953bSthorpej #include <sys/param.h> 515ecc953bSthorpej #include <ctype.h> 525ecc953bSthorpej #include <stdio.h> 535ecc953bSthorpej #include <stdlib.h> 545ecc953bSthorpej #include <string.h> 55d0fb8901Schristos #include <util.h> 565ecc953bSthorpej #include "defs.h" 575ecc953bSthorpej #include "sem.h" 585ecc953bSthorpej 595ecc953bSthorpej /* 605ecc953bSthorpej * config semantics. 615ecc953bSthorpej */ 625ecc953bSthorpej 635ecc953bSthorpej #define NAMESIZE 100 /* local name buffers */ 645ecc953bSthorpej 655ecc953bSthorpej const char *s_ifnet; /* magic attribute */ 665ecc953bSthorpej const char *s_qmark; 675ecc953bSthorpej const char *s_none; 685ecc953bSthorpej 695ecc953bSthorpej static struct hashtab *cfhashtab; /* for config lookup */ 705ecc953bSthorpej struct hashtab *devitab; /* etc */ 717c7d91e6Suebayasi struct attr allattr; 725ecc953bSthorpej 735ecc953bSthorpej static struct attr errattr; 745ecc953bSthorpej static struct devbase errdev; 755ecc953bSthorpej static struct deva errdeva; 765ecc953bSthorpej 774caf067bSdholland static int has_errobj(struct attrlist *, struct attr *); 785ecc953bSthorpej static struct nvlist *addtoattr(struct nvlist *, struct devbase *); 795ecc953bSthorpej static int resolve(struct nvlist **, const char *, const char *, 805ecc953bSthorpej struct nvlist *, int); 815ecc953bSthorpej static struct pspec *getpspec(struct attr *, struct devbase *, int); 825ecc953bSthorpej static struct devi *newdevi(const char *, int, struct devbase *d); 835ecc953bSthorpej static struct devi *getdevi(const char *); 84c130d400Scube static void remove_devi(struct devi *); 855ecc953bSthorpej static const char *concat(const char *, int); 865ecc953bSthorpej static char *extend(char *, const char *); 875ecc953bSthorpej static int split(const char *, size_t, char *, size_t, int *); 885ecc953bSthorpej static void selectbase(struct devbase *, struct deva *); 8916a8771bSdholland static const char **fixloc(const char *, struct attr *, struct loclist *); 90d767912bSdrochner static const char *makedevstr(devmajor_t, devminor_t); 91d767912bSdrochner static const char *major2name(devmajor_t); 92d767912bSdrochner static devmajor_t dev2major(struct devbase *); 935ecc953bSthorpej 945ecc953bSthorpej extern const char *yyfile; 957aa6070dScube extern int vflag; 965ecc953bSthorpej 975ecc953bSthorpej void 985ecc953bSthorpej initsem(void) 995ecc953bSthorpej { 1005ecc953bSthorpej 1015ecc953bSthorpej attrtab = ht_new(); 1026d1bba4aSuebayasi attrdeptab = ht_new(); 1037c7d91e6Suebayasi 1047c7d91e6Suebayasi allattr.a_name = "netbsd"; 1057c7d91e6Suebayasi TAILQ_INIT(&allattr.a_files); 1067c7d91e6Suebayasi (void)ht_insert(attrtab, allattr.a_name, &allattr); 107cd06fea3Suebayasi selectattr(&allattr); 1087c7d91e6Suebayasi 1095ecc953bSthorpej errattr.a_name = "<internal>"; 1105ecc953bSthorpej 1115ecc953bSthorpej TAILQ_INIT(&allbases); 1125ecc953bSthorpej 1135ecc953bSthorpej TAILQ_INIT(&alldevas); 1145ecc953bSthorpej 1155ecc953bSthorpej TAILQ_INIT(&allpspecs); 1165ecc953bSthorpej 1175ecc953bSthorpej cfhashtab = ht_new(); 1185ecc953bSthorpej TAILQ_INIT(&allcf); 1195ecc953bSthorpej 1205ecc953bSthorpej TAILQ_INIT(&alldevi); 1215ecc953bSthorpej errdev.d_name = "<internal>"; 1225ecc953bSthorpej 1235ecc953bSthorpej TAILQ_INIT(&allpseudo); 1245ecc953bSthorpej 1255ecc953bSthorpej TAILQ_INIT(&alldevms); 1265ecc953bSthorpej 1275ecc953bSthorpej s_ifnet = intern("ifnet"); 1285ecc953bSthorpej s_qmark = intern("?"); 1295ecc953bSthorpej s_none = intern("none"); 1305ecc953bSthorpej } 1315ecc953bSthorpej 1325ecc953bSthorpej /* Name of include file just ended (set in scan.l) */ 1335ecc953bSthorpej extern const char *lastfile; 1345ecc953bSthorpej 135a87832feSuebayasi static struct attr * 136da706167Suebayasi finddep(struct attr *a, const char *name) 137da706167Suebayasi { 138da706167Suebayasi struct attrlist *al; 139da706167Suebayasi 140da706167Suebayasi for (al = a->a_deps; al != NULL; al = al->al_next) { 141da706167Suebayasi struct attr *this = al->al_this; 142da706167Suebayasi if (strcmp(this->a_name, name) == 0) 143da706167Suebayasi return this; 144da706167Suebayasi } 145da706167Suebayasi return NULL; 146da706167Suebayasi } 147da706167Suebayasi 148da706167Suebayasi static void 149c80681c9Suebayasi mergedeps(const char *dname, const char *name) 150da706167Suebayasi { 151da706167Suebayasi struct attr *a, *newa; 152da706167Suebayasi 153c80681c9Suebayasi CFGDBG(4, "merging attr `%s' to devbase `%s'", name, dname); 154c80681c9Suebayasi a = refattr(dname); 155da706167Suebayasi if (finddep(a, name) == NULL) { 156da706167Suebayasi newa = refattr(name); 157da706167Suebayasi a->a_deps = attrlist_cons(a->a_deps, newa); 158da706167Suebayasi CFGDBG(3, "attr `%s' merged to attr `%s'", newa->a_name, 159da706167Suebayasi a->a_name); 160da706167Suebayasi } 161da706167Suebayasi } 162da706167Suebayasi 163da706167Suebayasi static void 164da706167Suebayasi fixdev(struct devbase *dev) 165da706167Suebayasi { 166da706167Suebayasi struct attrlist *al; 167da706167Suebayasi struct attr *devattr, *a; 168da706167Suebayasi 169da706167Suebayasi devattr = refattr(dev->d_name); 170da706167Suebayasi if (devattr->a_devclass) 171a87832feSuebayasi panic("%s: dev %s is devclass!", __func__, devattr->a_name); 172da706167Suebayasi 173c4bac1d0Suebayasi CFGDBG(4, "fixing devbase `%s'", dev->d_name); 174da706167Suebayasi for (al = dev->d_attrs; al != NULL; al = al->al_next) { 175da706167Suebayasi a = al->al_this; 176bc707469Suebayasi CFGDBG(4, "fixing devbase `%s' attr `%s'", dev->d_name, a->a_name); 177da706167Suebayasi if (a->a_iattr) { 178da706167Suebayasi a->a_refs = addtoattr(a->a_refs, dev); 179c4bac1d0Suebayasi CFGDBG(3, "device `%s' has iattr `%s'", dev->d_name, 180c4bac1d0Suebayasi a->a_name); 181da706167Suebayasi } else if (a->a_devclass != NULL) { 182c5a6c986Suebayasi if (dev->d_classattr != NULL && dev->d_classattr != a) { 183da706167Suebayasi cfgwarn("device `%s' has multiple classes " 184da706167Suebayasi "(`%s' and `%s')", 185da706167Suebayasi dev->d_name, dev->d_classattr->a_name, 186da706167Suebayasi a->a_name); 187da706167Suebayasi } 188c5a6c986Suebayasi if (dev->d_classattr == NULL) { 189da706167Suebayasi dev->d_classattr = a; 190c4bac1d0Suebayasi CFGDBG(3, "device `%s' is devclass `%s'", dev->d_name, 191c4bac1d0Suebayasi a->a_name); 192c5a6c986Suebayasi } 193da706167Suebayasi } else { 194da706167Suebayasi if (strcmp(dev->d_name, a->a_name) != 0) { 195bc707469Suebayasi mergedeps(dev->d_name, a->a_name); 196da706167Suebayasi } 197da706167Suebayasi } 198da706167Suebayasi } 199da706167Suebayasi } 200da706167Suebayasi 2015ecc953bSthorpej void 2025ecc953bSthorpej enddefs(void) 2035ecc953bSthorpej { 2045ecc953bSthorpej struct devbase *dev; 2055ecc953bSthorpej 206c4bac1d0Suebayasi yyfile = "enddefs"; 207c4bac1d0Suebayasi 2085ecc953bSthorpej TAILQ_FOREACH(dev, &allbases, d_next) { 2095ecc953bSthorpej if (!dev->d_isdef) { 2105ecc953bSthorpej (void)fprintf(stderr, 2115ecc953bSthorpej "%s: device `%s' used but not defined\n", 2125ecc953bSthorpej lastfile, dev->d_name); 2135ecc953bSthorpej errors++; 2145ecc953bSthorpej continue; 2155ecc953bSthorpej } 216bc707469Suebayasi fixdev(dev); 2175ecc953bSthorpej } 2185ecc953bSthorpej if (errors) { 2195ecc953bSthorpej (void)fprintf(stderr, "*** Stop.\n"); 2205ecc953bSthorpej exit(1); 2215ecc953bSthorpej } 2225ecc953bSthorpej } 2235ecc953bSthorpej 2245ecc953bSthorpej void 2255ecc953bSthorpej setdefmaxusers(int min, int def, int max) 2265ecc953bSthorpej { 2275ecc953bSthorpej 2285ecc953bSthorpej if (min < 1 || min > def || def > max) 229c7295a4cSchristos cfgerror("maxusers must have 1 <= min (%d) <= default (%d) " 230c7295a4cSchristos "<= max (%d)", min, def, max); 2315ecc953bSthorpej else { 2325ecc953bSthorpej minmaxusers = min; 2335ecc953bSthorpej defmaxusers = def; 2345ecc953bSthorpej maxmaxusers = max; 2355ecc953bSthorpej } 2365ecc953bSthorpej } 2375ecc953bSthorpej 2385ecc953bSthorpej void 2395ecc953bSthorpej setmaxusers(int n) 2405ecc953bSthorpej { 2415ecc953bSthorpej 242895e5687Scube if (maxusers == n) { 243c7295a4cSchristos cfgerror("duplicate maxusers parameter"); 2445ecc953bSthorpej return; 2455ecc953bSthorpej } 246895e5687Scube if (vflag && maxusers != 0) 247c7295a4cSchristos cfgwarn("warning: maxusers already defined"); 2485ecc953bSthorpej maxusers = n; 2495ecc953bSthorpej if (n < minmaxusers) { 250c7295a4cSchristos cfgerror("warning: minimum of %d maxusers assumed", 251c7295a4cSchristos minmaxusers); 2525ecc953bSthorpej errors--; /* take it away */ 2535ecc953bSthorpej maxusers = minmaxusers; 2545ecc953bSthorpej } else if (n > maxmaxusers) { 255c7295a4cSchristos cfgerror("warning: maxusers (%d) > %d", n, maxmaxusers); 2565ecc953bSthorpej errors--; 2575ecc953bSthorpej } 2585ecc953bSthorpej } 2595ecc953bSthorpej 2605ecc953bSthorpej void 2615ecc953bSthorpej setident(const char *i) 2625ecc953bSthorpej { 2635ecc953bSthorpej 2644a7be1f9Smrg if (i) 2655ecc953bSthorpej ident = intern(i); 2664a7be1f9Smrg else 2674a7be1f9Smrg ident = NULL; 2685ecc953bSthorpej } 2695ecc953bSthorpej 2705ecc953bSthorpej /* 2715ecc953bSthorpej * Define an attribute, optionally with an interface (a locator list) 2725ecc953bSthorpej * and a set of attribute-dependencies. 2735ecc953bSthorpej * 2745ecc953bSthorpej * Attribute dependencies MAY NOT be interface attributes. 2755ecc953bSthorpej * 2765ecc953bSthorpej * Since an empty locator list is logically different from "no interface", 2775ecc953bSthorpej * all locator lists include a dummy head node, which we discard here. 2785ecc953bSthorpej */ 2795ecc953bSthorpej int 280bb4307a6Suebayasi defattr0(const char *name, struct loclist *locs, struct attrlist *deps, 281bb4307a6Suebayasi int devclass) 282bb4307a6Suebayasi { 283bb4307a6Suebayasi 284bb4307a6Suebayasi if (locs != NULL) 285bb4307a6Suebayasi return defiattr(name, locs, deps, devclass); 286bb4307a6Suebayasi else if (devclass) 287bb4307a6Suebayasi return defdevclass(name, locs, deps, devclass); 288bb4307a6Suebayasi else 289bb4307a6Suebayasi return defattr(name, locs, deps, devclass); 290bb4307a6Suebayasi } 291bb4307a6Suebayasi 292bb4307a6Suebayasi int 29316a8771bSdholland defattr(const char *name, struct loclist *locs, struct attrlist *deps, 2945ecc953bSthorpej int devclass) 2955ecc953bSthorpej { 2965ecc953bSthorpej struct attr *a, *dep; 2974caf067bSdholland struct attrlist *al; 2985ecc953bSthorpej 2995ecc953bSthorpej /* 3005ecc953bSthorpej * If this attribute depends on any others, make sure none of 3015ecc953bSthorpej * the dependencies are interface attributes. 3025ecc953bSthorpej */ 3034caf067bSdholland for (al = deps; al != NULL; al = al->al_next) { 3044caf067bSdholland dep = al->al_this; 3055ecc953bSthorpej if (dep->a_iattr) { 306c7295a4cSchristos cfgerror("`%s' dependency `%s' is an interface " 307c7295a4cSchristos "attribute", name, dep->a_name); 3085ecc953bSthorpej return (1); 3095ecc953bSthorpej } 3106d1bba4aSuebayasi (void)ht_insert2(attrdeptab, name, dep->a_name, NULL); 311bc707469Suebayasi CFGDBG(2, "attr `%s' depends on attr `%s'", name, dep->a_name); 3125ecc953bSthorpej } 3135ecc953bSthorpej 314bb52c144Suebayasi if (getrefattr(name, &a)) { 315c7295a4cSchristos cfgerror("attribute `%s' already defined", name); 31616a8771bSdholland loclist_destroy(locs); 3175ecc953bSthorpej return (1); 3185ecc953bSthorpej } 319bb52c144Suebayasi if (a == NULL) 320bb52c144Suebayasi a = mkattr(name); 3215ecc953bSthorpej 322a949e288Suebayasi a->a_deps = deps; 323bb4307a6Suebayasi expandattr(a, NULL); 3242f2f3382Suebayasi CFGDBG(3, "attr `%s' defined", a->a_name); 325bb4307a6Suebayasi 326bb4307a6Suebayasi return (0); 327bb4307a6Suebayasi } 328a949e288Suebayasi 3292f2f3382Suebayasi struct attr * 3302f2f3382Suebayasi mkattr(const char *name) 3312f2f3382Suebayasi { 3322f2f3382Suebayasi struct attr *a; 3332f2f3382Suebayasi 3342f2f3382Suebayasi a = ecalloc(1, sizeof *a); 3352f2f3382Suebayasi if (ht_insert(attrtab, name, a)) { 3362f2f3382Suebayasi free(a); 3372f2f3382Suebayasi return NULL; 3382f2f3382Suebayasi } 3392f2f3382Suebayasi a->a_name = name; 3402f2f3382Suebayasi TAILQ_INIT(&a->a_files); 3412f2f3382Suebayasi CFGDBG(3, "attr `%s' allocated", name); 3422f2f3382Suebayasi 3432f2f3382Suebayasi return a; 3442f2f3382Suebayasi } 3452f2f3382Suebayasi 346a949e288Suebayasi /* "interface attribute" initialization */ 347bb4307a6Suebayasi int 348bb4307a6Suebayasi defiattr(const char *name, struct loclist *locs, struct attrlist *deps, 349bb4307a6Suebayasi int devclass) 350bb4307a6Suebayasi { 351bb4307a6Suebayasi struct attr *a; 352bb4307a6Suebayasi int len; 353bb4307a6Suebayasi struct loclist *ll; 354bb4307a6Suebayasi 355bb4307a6Suebayasi if (devclass) 356bb4307a6Suebayasi panic("defattr(%s): locators and devclass", name); 357bb4307a6Suebayasi 358bb4307a6Suebayasi if (defattr(name, locs, deps, devclass) != 0) 359bb4307a6Suebayasi return (1); 360bb4307a6Suebayasi 361bb4307a6Suebayasi a = getattr(name); 3625ecc953bSthorpej a->a_iattr = 1; 36316a8771bSdholland /* unwrap */ 36416a8771bSdholland a->a_locs = locs->ll_next; 36516a8771bSdholland locs->ll_next = NULL; 36616a8771bSdholland loclist_destroy(locs); 367a949e288Suebayasi len = 0; 368a949e288Suebayasi for (ll = a->a_locs; ll != NULL; ll = ll->ll_next) 369a949e288Suebayasi len++; 370a949e288Suebayasi a->a_loclen = len; 371bb4307a6Suebayasi if (deps) 372bb4307a6Suebayasi CFGDBG(2, "attr `%s' iface with deps", a->a_name); 373bb4307a6Suebayasi return (0); 3745ecc953bSthorpej } 375a949e288Suebayasi 376a949e288Suebayasi /* "device class" initialization */ 377bb4307a6Suebayasi int 378bb4307a6Suebayasi defdevclass(const char *name, struct loclist *locs, struct attrlist *deps, 379bb4307a6Suebayasi int devclass) 380bb4307a6Suebayasi { 381bb4307a6Suebayasi struct attr *a; 382bbfbbde1Schristos char classenum[256], *cp; 3835ecc953bSthorpej int errored = 0; 3845ecc953bSthorpej 385bb4307a6Suebayasi if (deps) 386bb4307a6Suebayasi panic("defattr(%s): dependencies and devclass", name); 387bb4307a6Suebayasi 388bb4307a6Suebayasi if (defattr(name, locs, deps, devclass) != 0) 389bb4307a6Suebayasi return (1); 390bb4307a6Suebayasi 391bb4307a6Suebayasi a = getattr(name); 392bbfbbde1Schristos (void)snprintf(classenum, sizeof(classenum), "DV_%s", name); 3935ecc953bSthorpej for (cp = classenum + 3; *cp; cp++) { 3945ecc953bSthorpej if (!errored && 3955ecc953bSthorpej (!isalnum((unsigned char)*cp) || 3965ecc953bSthorpej (isalpha((unsigned char)*cp) && !islower((unsigned char)*cp)))) { 397c7295a4cSchristos cfgerror("device class names must be " 398c7295a4cSchristos "lower-case alphanumeric characters"); 3995ecc953bSthorpej errored = 1; 4005ecc953bSthorpej } 401*64a07b54Sjoerg *cp = (char)toupper((unsigned char)*cp); 4025ecc953bSthorpej } 4035ecc953bSthorpej a->a_devclass = intern(classenum); 4045ecc953bSthorpej 4055ecc953bSthorpej return (0); 4065ecc953bSthorpej } 4075ecc953bSthorpej 4085ecc953bSthorpej /* 4095ecc953bSthorpej * Return true if the given `error object' is embedded in the given 4105ecc953bSthorpej * pointer list. 4115ecc953bSthorpej */ 4125ecc953bSthorpej static int 4134caf067bSdholland has_errobj(struct attrlist *al, struct attr *obj) 4145ecc953bSthorpej { 4155ecc953bSthorpej 4164caf067bSdholland for (; al != NULL; al = al->al_next) 4174caf067bSdholland if (al->al_this == obj) 4185ecc953bSthorpej return (1); 4195ecc953bSthorpej return (0); 4205ecc953bSthorpej } 4215ecc953bSthorpej 4225ecc953bSthorpej /* 4235ecc953bSthorpej * Return true if the given attribute is embedded in the given 4245ecc953bSthorpej * pointer list. 4255ecc953bSthorpej */ 4265ecc953bSthorpej int 4274caf067bSdholland has_attr(struct attrlist *al, const char *attr) 4285ecc953bSthorpej { 4295ecc953bSthorpej struct attr *a; 4305ecc953bSthorpej 4315ecc953bSthorpej if ((a = getattr(attr)) == NULL) 4325ecc953bSthorpej return (0); 4335ecc953bSthorpej 4344caf067bSdholland for (; al != NULL; al = al->al_next) 4354caf067bSdholland if (al->al_this == a) 4365ecc953bSthorpej return (1); 4375ecc953bSthorpej return (0); 4385ecc953bSthorpej } 4395ecc953bSthorpej 4405ecc953bSthorpej /* 4415ecc953bSthorpej * Add a device base to a list in an attribute (actually, to any list). 4425ecc953bSthorpej * Note that this does not check for duplicates, and does reverse the 4435ecc953bSthorpej * list order, but no one cares anyway. 4445ecc953bSthorpej */ 4455ecc953bSthorpej static struct nvlist * 4465ecc953bSthorpej addtoattr(struct nvlist *l, struct devbase *dev) 4475ecc953bSthorpej { 4485ecc953bSthorpej struct nvlist *n; 4495ecc953bSthorpej 4505ecc953bSthorpej n = newnv(NULL, NULL, dev, 0, l); 4515ecc953bSthorpej return (n); 4525ecc953bSthorpej } 4535ecc953bSthorpej 4545ecc953bSthorpej /* 4555ecc953bSthorpej * Define a device. This may (or may not) also define an interface 4565ecc953bSthorpej * attribute and/or refer to existing attributes. 4575ecc953bSthorpej */ 4585ecc953bSthorpej void 45916a8771bSdholland defdev(struct devbase *dev, struct loclist *loclist, struct attrlist *attrs, 4605ecc953bSthorpej int ispseudo) 4615ecc953bSthorpej { 46216a8771bSdholland struct loclist *ll; 4634caf067bSdholland struct attrlist *al; 4645ecc953bSthorpej 4655ecc953bSthorpej if (dev == &errdev) 4665ecc953bSthorpej goto bad; 4675ecc953bSthorpej if (dev->d_isdef) { 468c7295a4cSchristos cfgerror("redefinition of `%s'", dev->d_name); 4695ecc953bSthorpej goto bad; 4705ecc953bSthorpej } 4715ecc953bSthorpej 4725ecc953bSthorpej dev->d_isdef = 1; 4735ecc953bSthorpej if (has_errobj(attrs, &errattr)) 4745ecc953bSthorpej goto bad; 4755ecc953bSthorpej 4765ecc953bSthorpej /* 4775ecc953bSthorpej * Handle implicit attribute definition from locator list. Do 4785ecc953bSthorpej * this before scanning the `at' list so that we can have, e.g.: 4795ecc953bSthorpej * device foo at other, foo { slot = -1 } 4805ecc953bSthorpej * (where you can plug in a foo-bus extender to a foo-bus). 4815ecc953bSthorpej */ 4825ecc953bSthorpej if (loclist != NULL) { 48316a8771bSdholland ll = loclist; 4845ecc953bSthorpej loclist = NULL; /* defattr disposes of them for us */ 485bb4307a6Suebayasi if (defiattr(dev->d_name, ll, NULL, 0)) 4865ecc953bSthorpej goto bad; 4874caf067bSdholland attrs = attrlist_cons(attrs, getattr(dev->d_name)); 4884caf067bSdholland /* This used to be stored but was never used */ 4894caf067bSdholland /* attrs->al_name = dev->d_name; */ 490c454f920Scube } 491c454f920Scube 492c130d400Scube /* 493c130d400Scube * Pseudo-devices can have children. Consider them as 494c130d400Scube * attaching at root. 495c130d400Scube */ 496c454f920Scube if (ispseudo) { 4974caf067bSdholland for (al = attrs; al != NULL; al = al->al_next) 4984caf067bSdholland if (al->al_this->a_iattr) 499c454f920Scube break; 5004caf067bSdholland if (al != NULL) { 501b66156c7Sdrochner if (ispseudo < 2) { 502b66156c7Sdrochner if (version >= 20080610) 503b66156c7Sdrochner cfgerror("interface attribute on " 504b66156c7Sdrochner "non-device pseudo `%s'", dev->d_name); 505b66156c7Sdrochner else { 506b66156c7Sdrochner ispseudo = 2; 507b66156c7Sdrochner } 508b66156c7Sdrochner } 509c130d400Scube ht_insert(devroottab, dev->d_name, dev); 5105ecc953bSthorpej } 511b66156c7Sdrochner } 5125ecc953bSthorpej 5135ecc953bSthorpej /* Committed! Set up fields. */ 5145ecc953bSthorpej dev->d_ispseudo = ispseudo; 5155ecc953bSthorpej dev->d_attrs = attrs; 5165ecc953bSthorpej dev->d_classattr = NULL; /* for now */ 517da706167Suebayasi CFGDBG(3, "dev `%s' defined", dev->d_name); 5185ecc953bSthorpej 5195ecc953bSthorpej /* 520a2dd9676Suebayasi * Implicit attribute definition for device. 521a2dd9676Suebayasi */ 52201b2a130Smartin refattr(dev->d_name); 523a2dd9676Suebayasi 524a2dd9676Suebayasi /* 5255ecc953bSthorpej * For each interface attribute this device refers to, add this 5265ecc953bSthorpej * device to its reference list. This makes, e.g., finding all 5275ecc953bSthorpej * "scsi"s easier. 5285ecc953bSthorpej * 5295ecc953bSthorpej * While looking through the attributes, set up the device 5305ecc953bSthorpej * class if any are devclass attributes (and error out if the 5315ecc953bSthorpej * device has two classes). 5325ecc953bSthorpej */ 5334caf067bSdholland for (al = attrs; al != NULL; al = al->al_next) { 534da706167Suebayasi /* 535da706167Suebayasi * Implicit attribute definition for device dependencies. 536da706167Suebayasi */ 537bc707469Suebayasi refattr(al->al_this->a_name); 5386d1bba4aSuebayasi (void)ht_insert2(attrdeptab, dev->d_name, al->al_this->a_name, NULL); 539bc707469Suebayasi CFGDBG(2, "device `%s' depends on attr `%s'", dev->d_name, 540bc707469Suebayasi al->al_this->a_name); 5415ecc953bSthorpej } 5425ecc953bSthorpej return; 5435ecc953bSthorpej bad: 54416a8771bSdholland loclist_destroy(loclist); 5454caf067bSdholland attrlist_destroyall(attrs); 5465ecc953bSthorpej } 5475ecc953bSthorpej 5485ecc953bSthorpej /* 5495ecc953bSthorpej * Look up a devbase. Also makes sure it is a reasonable name, 5505ecc953bSthorpej * i.e., does not end in a digit or contain special characters. 5515ecc953bSthorpej */ 5525ecc953bSthorpej struct devbase * 5535ecc953bSthorpej getdevbase(const char *name) 5545ecc953bSthorpej { 555c7295a4cSchristos const u_char *p; 5565ecc953bSthorpej struct devbase *dev; 5575ecc953bSthorpej 558c7295a4cSchristos p = (const u_char *)name; 5595ecc953bSthorpej if (!isalpha(*p)) 5605ecc953bSthorpej goto badname; 5615ecc953bSthorpej while (*++p) { 5625ecc953bSthorpej if (!isalnum(*p) && *p != '_') 5635ecc953bSthorpej goto badname; 5645ecc953bSthorpej } 5655ecc953bSthorpej if (isdigit(*--p)) { 5665ecc953bSthorpej badname: 567c7295a4cSchristos cfgerror("bad device base name `%s'", name); 5685ecc953bSthorpej return (&errdev); 5695ecc953bSthorpej } 5705ecc953bSthorpej dev = ht_lookup(devbasetab, name); 5715ecc953bSthorpej if (dev == NULL) { 5725ecc953bSthorpej dev = ecalloc(1, sizeof *dev); 5735ecc953bSthorpej dev->d_name = name; 5745ecc953bSthorpej dev->d_isdef = 0; 575d767912bSdrochner dev->d_major = NODEVMAJOR; 5765ecc953bSthorpej dev->d_attrs = NULL; 5775ecc953bSthorpej dev->d_ihead = NULL; 5785ecc953bSthorpej dev->d_ipp = &dev->d_ihead; 5795ecc953bSthorpej dev->d_ahead = NULL; 5805ecc953bSthorpej dev->d_app = &dev->d_ahead; 5815ecc953bSthorpej dev->d_umax = 0; 5825ecc953bSthorpej TAILQ_INSERT_TAIL(&allbases, dev, d_next); 5835ecc953bSthorpej if (ht_insert(devbasetab, name, dev)) 5845ecc953bSthorpej panic("getdevbase(%s)", name); 585da706167Suebayasi CFGDBG(3, "devbase defined `%s'", dev->d_name); 5865ecc953bSthorpej } 5875ecc953bSthorpej return (dev); 5885ecc953bSthorpej } 5895ecc953bSthorpej 5905ecc953bSthorpej /* 5915ecc953bSthorpej * Define some of a device's allowable parent attachments. 5925ecc953bSthorpej * There may be a list of (plain) attributes. 5935ecc953bSthorpej */ 5945ecc953bSthorpej void 5955ecc953bSthorpej defdevattach(struct deva *deva, struct devbase *dev, struct nvlist *atlist, 5964caf067bSdholland struct attrlist *attrs) 5975ecc953bSthorpej { 5985ecc953bSthorpej struct nvlist *nv; 5994caf067bSdholland struct attrlist *al; 6005ecc953bSthorpej struct attr *a; 6015ecc953bSthorpej struct deva *da; 6025ecc953bSthorpej 6035ecc953bSthorpej if (dev == &errdev) 6045ecc953bSthorpej goto bad; 6055ecc953bSthorpej if (deva == NULL) 6065ecc953bSthorpej deva = getdevattach(dev->d_name); 6075ecc953bSthorpej if (deva == &errdeva) 6085ecc953bSthorpej goto bad; 6095ecc953bSthorpej if (!dev->d_isdef) { 610c7295a4cSchristos cfgerror("attaching undefined device `%s'", dev->d_name); 6115ecc953bSthorpej goto bad; 6125ecc953bSthorpej } 6135ecc953bSthorpej if (deva->d_isdef) { 614c7295a4cSchristos cfgerror("redefinition of `%s'", deva->d_name); 6155ecc953bSthorpej goto bad; 6165ecc953bSthorpej } 6175ecc953bSthorpej if (dev->d_ispseudo) { 618c7295a4cSchristos cfgerror("pseudo-devices can't attach"); 6195ecc953bSthorpej goto bad; 6205ecc953bSthorpej } 6215ecc953bSthorpej 6225ecc953bSthorpej deva->d_isdef = 1; 6235ecc953bSthorpej if (has_errobj(attrs, &errattr)) 6245ecc953bSthorpej goto bad; 6254caf067bSdholland for (al = attrs; al != NULL; al = al->al_next) { 6264caf067bSdholland a = al->al_this; 6275ecc953bSthorpej if (a == &errattr) 6285ecc953bSthorpej continue; /* already complained */ 6295ecc953bSthorpej if (a->a_iattr || a->a_devclass != NULL) 630c7295a4cSchristos cfgerror("`%s' is not a plain attribute", a->a_name); 6315ecc953bSthorpej } 6325ecc953bSthorpej 6335ecc953bSthorpej /* Committed! Set up fields. */ 6345ecc953bSthorpej deva->d_attrs = attrs; 6355ecc953bSthorpej deva->d_atlist = atlist; 6365ecc953bSthorpej deva->d_devbase = dev; 6372f2f3382Suebayasi CFGDBG(3, "deva `%s' defined", deva->d_name); 6382f2f3382Suebayasi 6392f2f3382Suebayasi /* 640a5a68b71Suebayasi * Implicit attribute definition for device attachment. 6412f2f3382Suebayasi */ 6422f2f3382Suebayasi refattr(deva->d_name); 6435ecc953bSthorpej 6445ecc953bSthorpej /* 6455ecc953bSthorpej * Turn the `at' list into interface attributes (map each 6465ecc953bSthorpej * nv_name to an attribute, or to NULL for root), and add 6475ecc953bSthorpej * this device to those attributes, so that children can 6485ecc953bSthorpej * be listed at this particular device if they are supported 6495ecc953bSthorpej * by that attribute. 6505ecc953bSthorpej */ 6515ecc953bSthorpej for (nv = atlist; nv != NULL; nv = nv->nv_next) { 6525ecc953bSthorpej if (nv->nv_name == NULL) 6535ecc953bSthorpej nv->nv_ptr = a = NULL; /* at root */ 6545ecc953bSthorpej else 6555ecc953bSthorpej nv->nv_ptr = a = getattr(nv->nv_name); 6565ecc953bSthorpej if (a == &errattr) 6575ecc953bSthorpej continue; /* already complained */ 6585ecc953bSthorpej 6595ecc953bSthorpej /* 6605ecc953bSthorpej * Make sure that an attachment spec doesn't 6615ecc953bSthorpej * already say how to attach to this attribute. 6625ecc953bSthorpej */ 6635ecc953bSthorpej for (da = dev->d_ahead; da != NULL; da = da->d_bsame) 6645ecc953bSthorpej if (onlist(da->d_atlist, a)) 665c7295a4cSchristos cfgerror("attach at `%s' already done by `%s'", 6665ecc953bSthorpej a ? a->a_name : "root", da->d_name); 6675ecc953bSthorpej 668c130d400Scube if (a == NULL) { 669c130d400Scube ht_insert(devroottab, dev->d_name, dev); 6705ecc953bSthorpej continue; /* at root; don't add */ 671c130d400Scube } 6725ecc953bSthorpej if (!a->a_iattr) 673c7295a4cSchristos cfgerror("%s cannot be at plain attribute `%s'", 6745ecc953bSthorpej dev->d_name, a->a_name); 6755ecc953bSthorpej else 6765ecc953bSthorpej a->a_devs = addtoattr(a->a_devs, dev); 6775ecc953bSthorpej } 6785ecc953bSthorpej 6795ecc953bSthorpej /* attach to parent */ 6805ecc953bSthorpej *dev->d_app = deva; 6815ecc953bSthorpej dev->d_app = &deva->d_bsame; 6825ecc953bSthorpej return; 6835ecc953bSthorpej bad: 6845ecc953bSthorpej nvfreel(atlist); 6854caf067bSdholland attrlist_destroyall(attrs); 6865ecc953bSthorpej } 6875ecc953bSthorpej 6885ecc953bSthorpej /* 6895ecc953bSthorpej * Look up a device attachment. Also makes sure it is a reasonable 6905ecc953bSthorpej * name, i.e., does not contain digits or special characters. 6915ecc953bSthorpej */ 6925ecc953bSthorpej struct deva * 6935ecc953bSthorpej getdevattach(const char *name) 6945ecc953bSthorpej { 695c7295a4cSchristos const u_char *p; 6965ecc953bSthorpej struct deva *deva; 6975ecc953bSthorpej 698c7295a4cSchristos p = (const u_char *)name; 6995ecc953bSthorpej if (!isalpha(*p)) 7005ecc953bSthorpej goto badname; 7015ecc953bSthorpej while (*++p) { 7025ecc953bSthorpej if (!isalnum(*p) && *p != '_') 7035ecc953bSthorpej goto badname; 7045ecc953bSthorpej } 7055ecc953bSthorpej if (isdigit(*--p)) { 7065ecc953bSthorpej badname: 707c7295a4cSchristos cfgerror("bad device attachment name `%s'", name); 7085ecc953bSthorpej return (&errdeva); 7095ecc953bSthorpej } 7105ecc953bSthorpej deva = ht_lookup(devatab, name); 7115ecc953bSthorpej if (deva == NULL) { 7125ecc953bSthorpej deva = ecalloc(1, sizeof *deva); 7135ecc953bSthorpej deva->d_name = name; 7145ecc953bSthorpej deva->d_bsame = NULL; 7155ecc953bSthorpej deva->d_isdef = 0; 7165ecc953bSthorpej deva->d_devbase = NULL; 7175ecc953bSthorpej deva->d_atlist = NULL; 7185ecc953bSthorpej deva->d_attrs = NULL; 7195ecc953bSthorpej deva->d_ihead = NULL; 7205ecc953bSthorpej deva->d_ipp = &deva->d_ihead; 7215ecc953bSthorpej TAILQ_INSERT_TAIL(&alldevas, deva, d_next); 7225ecc953bSthorpej if (ht_insert(devatab, name, deva)) 7235ecc953bSthorpej panic("getdeva(%s)", name); 7245ecc953bSthorpej } 7255ecc953bSthorpej return (deva); 7265ecc953bSthorpej } 7275ecc953bSthorpej 7285ecc953bSthorpej /* 7295ecc953bSthorpej * Look up an attribute. 7305ecc953bSthorpej */ 7315ecc953bSthorpej struct attr * 7325ecc953bSthorpej getattr(const char *name) 7335ecc953bSthorpej { 7345ecc953bSthorpej struct attr *a; 7355ecc953bSthorpej 7365ecc953bSthorpej if ((a = ht_lookup(attrtab, name)) == NULL) { 737c7295a4cSchristos cfgerror("undefined attribute `%s'", name); 7385ecc953bSthorpej a = &errattr; 7395ecc953bSthorpej } 7405ecc953bSthorpej return (a); 7415ecc953bSthorpej } 7425ecc953bSthorpej 7435ecc953bSthorpej /* 7442f2f3382Suebayasi * Implicit attribute definition. 7452f2f3382Suebayasi */ 74651deed3eSuebayasi struct attr * 7472f2f3382Suebayasi refattr(const char *name) 7482f2f3382Suebayasi { 74951deed3eSuebayasi struct attr *a; 7502f2f3382Suebayasi 75151deed3eSuebayasi if ((a = ht_lookup(attrtab, name)) == NULL) 75251deed3eSuebayasi a = mkattr(name); 75351deed3eSuebayasi return a; 7542f2f3382Suebayasi } 7552f2f3382Suebayasi 756bb52c144Suebayasi int 757bb52c144Suebayasi getrefattr(const char *name, struct attr **ra) 758bb52c144Suebayasi { 759bb52c144Suebayasi struct attr *a; 760bb52c144Suebayasi 761bb52c144Suebayasi a = ht_lookup(attrtab, name); 762bb52c144Suebayasi if (a == NULL) { 763bb52c144Suebayasi *ra = NULL; 764bb52c144Suebayasi return (0); 765bb52c144Suebayasi } 766bb52c144Suebayasi /* 767bb52c144Suebayasi * Check if the existing attr is only referenced, not really defined. 768bb52c144Suebayasi */ 769bb52c144Suebayasi if (a->a_deps == NULL && 770bb52c144Suebayasi a->a_iattr == 0 && 771bb52c144Suebayasi a->a_devclass == 0) { 772bb52c144Suebayasi *ra = a; 773bb52c144Suebayasi return (0); 774bb52c144Suebayasi } 775bb52c144Suebayasi return (1); 776bb52c144Suebayasi } 777bb52c144Suebayasi 7782f2f3382Suebayasi /* 7795ecc953bSthorpej * Recursively expand an attribute and its dependencies, checking for 7805ecc953bSthorpej * cycles, and invoking a callback for each attribute found. 7815ecc953bSthorpej */ 7825ecc953bSthorpej void 7835ecc953bSthorpej expandattr(struct attr *a, void (*callback)(struct attr *)) 7845ecc953bSthorpej { 7854caf067bSdholland struct attrlist *al; 7865ecc953bSthorpej struct attr *dep; 7875ecc953bSthorpej 7885ecc953bSthorpej if (a->a_expanding) { 789c7295a4cSchristos cfgerror("circular dependency on attribute `%s'", a->a_name); 7905ecc953bSthorpej return; 7915ecc953bSthorpej } 7925ecc953bSthorpej 7935ecc953bSthorpej a->a_expanding = 1; 7945ecc953bSthorpej 7955ecc953bSthorpej /* First expand all of this attribute's dependencies. */ 7964caf067bSdholland for (al = a->a_deps; al != NULL; al = al->al_next) { 7974caf067bSdholland dep = al->al_this; 7985ecc953bSthorpej expandattr(dep, callback); 7995ecc953bSthorpej } 8005ecc953bSthorpej 8015ecc953bSthorpej /* ...and now invoke the callback for ourself. */ 8025ecc953bSthorpej if (callback != NULL) 8035ecc953bSthorpej (*callback)(a); 8045ecc953bSthorpej 8055ecc953bSthorpej a->a_expanding = 0; 8065ecc953bSthorpej } 8075ecc953bSthorpej 8085ecc953bSthorpej /* 8095ecc953bSthorpej * Set the major device number for a device, so that it can be used 8105ecc953bSthorpej * as a root/dumps "on" device in a configuration. 8115ecc953bSthorpej */ 8125ecc953bSthorpej void 813d767912bSdrochner setmajor(struct devbase *d, devmajor_t n) 8145ecc953bSthorpej { 8155ecc953bSthorpej 816d767912bSdrochner if (d != &errdev && d->d_major != NODEVMAJOR) 817d767912bSdrochner cfgerror("device `%s' is already major %d", 818d767912bSdrochner d->d_name, d->d_major); 8195ecc953bSthorpej else 8205ecc953bSthorpej d->d_major = n; 8215ecc953bSthorpej } 8225ecc953bSthorpej 8235ecc953bSthorpej const char * 824d767912bSdrochner major2name(devmajor_t maj) 8255ecc953bSthorpej { 8265ecc953bSthorpej struct devbase *dev; 8275ecc953bSthorpej struct devm *dm; 8285ecc953bSthorpej 8295ecc953bSthorpej if (!do_devsw) { 8305ecc953bSthorpej TAILQ_FOREACH(dev, &allbases, d_next) { 8315ecc953bSthorpej if (dev->d_major == maj) 8325ecc953bSthorpej return (dev->d_name); 8335ecc953bSthorpej } 8345ecc953bSthorpej } else { 8355ecc953bSthorpej TAILQ_FOREACH(dm, &alldevms, dm_next) { 8365ecc953bSthorpej if (dm->dm_bmajor == maj) 8375ecc953bSthorpej return (dm->dm_name); 8385ecc953bSthorpej } 8395ecc953bSthorpej } 8405ecc953bSthorpej return (NULL); 8415ecc953bSthorpej } 8425ecc953bSthorpej 843d767912bSdrochner devmajor_t 8445ecc953bSthorpej dev2major(struct devbase *dev) 8455ecc953bSthorpej { 8465ecc953bSthorpej struct devm *dm; 8475ecc953bSthorpej 8485ecc953bSthorpej if (!do_devsw) 8495ecc953bSthorpej return (dev->d_major); 8505ecc953bSthorpej 8515ecc953bSthorpej TAILQ_FOREACH(dm, &alldevms, dm_next) { 8525ecc953bSthorpej if (strcmp(dm->dm_name, dev->d_name) == 0) 8535ecc953bSthorpej return (dm->dm_bmajor); 8545ecc953bSthorpej } 855d767912bSdrochner return (NODEVMAJOR); 8565ecc953bSthorpej } 8575ecc953bSthorpej 8585ecc953bSthorpej /* 8595ecc953bSthorpej * Make a string description of the device at maj/min. 8605ecc953bSthorpej */ 8615ecc953bSthorpej static const char * 862d767912bSdrochner makedevstr(devmajor_t maj, devminor_t min) 8635ecc953bSthorpej { 864c7295a4cSchristos const char *devicename; 8655ecc953bSthorpej char buf[32]; 8665ecc953bSthorpej 867c7295a4cSchristos devicename = major2name(maj); 868c7295a4cSchristos if (devicename == NULL) 869d767912bSdrochner (void)snprintf(buf, sizeof(buf), "<%d/%d>", maj, min); 8705ecc953bSthorpej else 871d767912bSdrochner (void)snprintf(buf, sizeof(buf), "%s%d%c", devicename, 872d767912bSdrochner min / maxpartitions, (min % maxpartitions) + 'a'); 8735ecc953bSthorpej 8745ecc953bSthorpej return (intern(buf)); 8755ecc953bSthorpej } 8765ecc953bSthorpej 8775ecc953bSthorpej /* 8785ecc953bSthorpej * Map things like "ra0b" => makedev(major("ra"), 0*maxpartitions + 'b'-'a'). 8795ecc953bSthorpej * Handle the case where the device number is given but there is no 8805ecc953bSthorpej * corresponding name, and map NULL to the default. 8815ecc953bSthorpej */ 8825ecc953bSthorpej static int 8835ecc953bSthorpej resolve(struct nvlist **nvp, const char *name, const char *what, 8845ecc953bSthorpej struct nvlist *dflt, int part) 8855ecc953bSthorpej { 8865ecc953bSthorpej struct nvlist *nv; 8875ecc953bSthorpej struct devbase *dev; 8885ecc953bSthorpej const char *cp; 889d767912bSdrochner devmajor_t maj; 890d767912bSdrochner devminor_t min; 8919a7f4bbaSchristos size_t i, l; 8925ecc953bSthorpej int unit; 8935ecc953bSthorpej char buf[NAMESIZE]; 8945ecc953bSthorpej 8955cc303e1Slukem if ((part -= 'a') >= maxpartitions || part < 0) 8965ecc953bSthorpej panic("resolve"); 8975ecc953bSthorpej if ((nv = *nvp) == NULL) { 8985ecc953bSthorpej dev_t d = NODEV; 8995ecc953bSthorpej /* 9005ecc953bSthorpej * Apply default. Easiest to do this by number. 9015ecc953bSthorpej * Make sure to retain NODEVness, if this is dflt's disposition. 9025ecc953bSthorpej */ 9035cc303e1Slukem if ((dev_t)dflt->nv_num != NODEV) { 9040001b928Schristos maj = major(dflt->nv_num); 9050001b928Schristos min = ((minor(dflt->nv_num) / maxpartitions) * 9065ecc953bSthorpej maxpartitions) + part; 9075ecc953bSthorpej d = makedev(maj, min); 9085ecc953bSthorpej cp = makedevstr(maj, min); 9095ecc953bSthorpej } else 9105ecc953bSthorpej cp = NULL; 9119a7f4bbaSchristos *nvp = nv = newnv(NULL, cp, NULL, (long long)d, NULL); 9125ecc953bSthorpej } 9135cc303e1Slukem if ((dev_t)nv->nv_num != NODEV) { 9145ecc953bSthorpej /* 9155ecc953bSthorpej * By the numbers. Find the appropriate major number 9165ecc953bSthorpej * to make a name. 9175ecc953bSthorpej */ 9180001b928Schristos maj = major(nv->nv_num); 9190001b928Schristos min = minor(nv->nv_num); 9205ecc953bSthorpej nv->nv_str = makedevstr(maj, min); 9215ecc953bSthorpej return (0); 9225ecc953bSthorpej } 9235ecc953bSthorpej 9245ecc953bSthorpej if (nv->nv_str == NULL || nv->nv_str == s_qmark) 9255ecc953bSthorpej /* 9265ecc953bSthorpej * Wildcarded or unspecified; leave it as NODEV. 9275ecc953bSthorpej */ 9285ecc953bSthorpej return (0); 9295ecc953bSthorpej 9305ecc953bSthorpej /* 9315ecc953bSthorpej * The normal case: things like "ra2b". Check for partition 9325ecc953bSthorpej * suffix, remove it if there, and split into name ("ra") and 9335ecc953bSthorpej * unit (2). 9345ecc953bSthorpej */ 9355ecc953bSthorpej l = i = strlen(nv->nv_str); 9365ecc953bSthorpej cp = &nv->nv_str[l]; 9375ecc953bSthorpej if (l > 1 && *--cp >= 'a' && *cp < 'a' + maxpartitions && 9385ecc953bSthorpej isdigit((unsigned char)cp[-1])) { 9395ecc953bSthorpej l--; 9405ecc953bSthorpej part = *cp - 'a'; 9415ecc953bSthorpej } 9425ecc953bSthorpej cp = nv->nv_str; 9435ecc953bSthorpej if (split(cp, l, buf, sizeof buf, &unit)) { 944c7295a4cSchristos cfgerror("%s: invalid %s device name `%s'", name, what, cp); 9455ecc953bSthorpej return (1); 9465ecc953bSthorpej } 9475ecc953bSthorpej dev = ht_lookup(devbasetab, intern(buf)); 9485ecc953bSthorpej if (dev == NULL) { 949c7295a4cSchristos cfgerror("%s: device `%s' does not exist", name, buf); 9505ecc953bSthorpej return (1); 9515ecc953bSthorpej } 9525ecc953bSthorpej 9535ecc953bSthorpej /* 9545ecc953bSthorpej * Check for the magic network interface attribute, and 9555ecc953bSthorpej * don't bother making a device number. 9565ecc953bSthorpej */ 9575ecc953bSthorpej if (has_attr(dev->d_attrs, s_ifnet)) { 9589a7f4bbaSchristos nv->nv_num = (long long)NODEV; 9595ecc953bSthorpej nv->nv_ifunit = unit; /* XXX XXX XXX */ 9605ecc953bSthorpej } else { 9615ecc953bSthorpej maj = dev2major(dev); 9625cc303e1Slukem if (maj == NODEVMAJOR) { 963c7295a4cSchristos cfgerror("%s: can't make %s device from `%s'", 9645ecc953bSthorpej name, what, nv->nv_str); 9655ecc953bSthorpej return (1); 9665ecc953bSthorpej } 9670001b928Schristos nv->nv_num = makedev(maj, unit * maxpartitions + part); 9685ecc953bSthorpej } 9695ecc953bSthorpej 9705ecc953bSthorpej nv->nv_name = dev->d_name; 9715ecc953bSthorpej return (0); 9725ecc953bSthorpej } 9735ecc953bSthorpej 9745ecc953bSthorpej /* 9755ecc953bSthorpej * Add a completed configuration to the list. 9765ecc953bSthorpej */ 9775ecc953bSthorpej void 9785ecc953bSthorpej addconf(struct config *cf0) 9795ecc953bSthorpej { 9805ecc953bSthorpej struct config *cf; 9815ecc953bSthorpej const char *name; 9825ecc953bSthorpej 9835ecc953bSthorpej name = cf0->cf_name; 9845ecc953bSthorpej cf = ecalloc(1, sizeof *cf); 9855ecc953bSthorpej if (ht_insert(cfhashtab, name, cf)) { 986c7295a4cSchristos cfgerror("configuration `%s' already defined", name); 9875ecc953bSthorpej free(cf); 9885ecc953bSthorpej goto bad; 9895ecc953bSthorpej } 9905ecc953bSthorpej *cf = *cf0; 9915ecc953bSthorpej 9925ecc953bSthorpej /* 9935ecc953bSthorpej * Resolve the root device. 9945ecc953bSthorpej */ 995cd429362Serh if (cf->cf_root == NULL) { 996c7295a4cSchristos cfgerror("%s: no root device specified", name); 9975ecc953bSthorpej goto bad; 9985ecc953bSthorpej } 999cd429362Serh if (cf->cf_root && cf->cf_root->nv_str != s_qmark) { 1000cd429362Serh struct nvlist *nv; 1001cd429362Serh nv = cf->cf_root; 10025ecc953bSthorpej if (resolve(&cf->cf_root, name, "root", nv, 'a')) 10035ecc953bSthorpej goto bad; 10045ecc953bSthorpej } 10055ecc953bSthorpej 10065ecc953bSthorpej /* 10075ecc953bSthorpej * Resolve the dump device. 10085ecc953bSthorpej */ 10095ecc953bSthorpej if (cf->cf_dump == NULL || cf->cf_dump->nv_str == s_qmark) { 10105ecc953bSthorpej /* 10115ecc953bSthorpej * Wildcarded dump device is equivalent to unspecified. 10125ecc953bSthorpej */ 10135ecc953bSthorpej cf->cf_dump = NULL; 10145ecc953bSthorpej } else if (cf->cf_dump->nv_str == s_none) { 10155ecc953bSthorpej /* 10165ecc953bSthorpej * Operator has requested that no dump device should be 10175ecc953bSthorpej * configured; do nothing. 10185ecc953bSthorpej */ 10195ecc953bSthorpej } else { 10205ecc953bSthorpej if (resolve(&cf->cf_dump, name, "dumps", cf->cf_dump, 'b')) 10215ecc953bSthorpej goto bad; 10225ecc953bSthorpej } 10235ecc953bSthorpej 10245ecc953bSthorpej /* Wildcarded fstype is `unspecified'. */ 10255ecc953bSthorpej if (cf->cf_fstype == s_qmark) 10265ecc953bSthorpej cf->cf_fstype = NULL; 10275ecc953bSthorpej 10285ecc953bSthorpej TAILQ_INSERT_TAIL(&allcf, cf, cf_next); 10295ecc953bSthorpej return; 10305ecc953bSthorpej bad: 10315ecc953bSthorpej nvfreel(cf0->cf_root); 10325ecc953bSthorpej nvfreel(cf0->cf_dump); 10335ecc953bSthorpej } 10345ecc953bSthorpej 10355ecc953bSthorpej void 10365ecc953bSthorpej setconf(struct nvlist **npp, const char *what, struct nvlist *v) 10375ecc953bSthorpej { 10385ecc953bSthorpej 10395ecc953bSthorpej if (*npp != NULL) { 1040c7295a4cSchristos cfgerror("duplicate %s specification", what); 10415ecc953bSthorpej nvfreel(v); 10425ecc953bSthorpej } else 10435ecc953bSthorpej *npp = v; 10445ecc953bSthorpej } 10455ecc953bSthorpej 10465ecc953bSthorpej void 104742b52b8aScube delconf(const char *name) 104842b52b8aScube { 104942b52b8aScube struct config *cf; 105042b52b8aScube 105175eb07f2Suebayasi CFGDBG(5, "deselecting config `%s'", name); 105242b52b8aScube if (ht_lookup(cfhashtab, name) == NULL) { 1053c7295a4cSchristos cfgerror("configuration `%s' undefined", name); 105442b52b8aScube return; 105542b52b8aScube } 105642b52b8aScube (void)ht_remove(cfhashtab, name); 105742b52b8aScube 105842b52b8aScube TAILQ_FOREACH(cf, &allcf, cf_next) 105942b52b8aScube if (!strcmp(cf->cf_name, name)) 106042b52b8aScube break; 106142b52b8aScube if (cf == NULL) 106242b52b8aScube panic("lost configuration `%s'", name); 106342b52b8aScube 106442b52b8aScube TAILQ_REMOVE(&allcf, cf, cf_next); 106542b52b8aScube } 106642b52b8aScube 106742b52b8aScube void 10685ecc953bSthorpej setfstype(const char **fstp, const char *v) 10695ecc953bSthorpej { 10705ecc953bSthorpej 10715ecc953bSthorpej if (*fstp != NULL) { 1072c7295a4cSchristos cfgerror("multiple fstype specifications"); 10735ecc953bSthorpej return; 10745ecc953bSthorpej } 10755ecc953bSthorpej 10765ecc953bSthorpej if (v != s_qmark && OPT_FSOPT(v)) { 1077c7295a4cSchristos cfgerror("\"%s\" is not a configured file system", v); 10785ecc953bSthorpej return; 10795ecc953bSthorpej } 10805ecc953bSthorpej 10815ecc953bSthorpej *fstp = v; 10825ecc953bSthorpej } 10835ecc953bSthorpej 10845ecc953bSthorpej static struct devi * 10855ecc953bSthorpej newdevi(const char *name, int unit, struct devbase *d) 10865ecc953bSthorpej { 10875ecc953bSthorpej struct devi *i; 10885ecc953bSthorpej 10895ecc953bSthorpej i = ecalloc(1, sizeof *i); 10905ecc953bSthorpej i->i_name = name; 10915ecc953bSthorpej i->i_unit = unit; 10925ecc953bSthorpej i->i_base = d; 10935ecc953bSthorpej i->i_bsame = NULL; 10945ecc953bSthorpej i->i_asame = NULL; 10955ecc953bSthorpej i->i_alias = NULL; 10965ecc953bSthorpej i->i_at = NULL; 10975ecc953bSthorpej i->i_pspec = NULL; 10985ecc953bSthorpej i->i_atdeva = NULL; 10995ecc953bSthorpej i->i_locs = NULL; 11005ecc953bSthorpej i->i_cfflags = 0; 11015ecc953bSthorpej i->i_lineno = currentline(); 11020dbd1c0eScube i->i_srcfile = yyfile; 11037aa6070dScube i->i_active = DEVI_ORPHAN; /* Proper analysis comes later */ 1104a31ff6b4Scube i->i_level = devilevel; 110590ac64deSpooka i->i_pseudoroot = 0; 11065ecc953bSthorpej if (unit >= d->d_umax) 11075ecc953bSthorpej d->d_umax = unit + 1; 11085ecc953bSthorpej return (i); 11095ecc953bSthorpej } 11105ecc953bSthorpej 11115ecc953bSthorpej /* 11125ecc953bSthorpej * Add the named device as attaching to the named attribute (or perhaps 11135ecc953bSthorpej * another device instead) plus unit number. 11145ecc953bSthorpej */ 11155ecc953bSthorpej void 111616a8771bSdholland adddev(const char *name, const char *at, struct loclist *loclist, int flags) 11175ecc953bSthorpej { 11185ecc953bSthorpej struct devi *i; /* the new instance */ 11195ecc953bSthorpej struct pspec *p; /* and its pspec */ 11205ecc953bSthorpej struct attr *attr; /* attribute that allows attach */ 11215ecc953bSthorpej struct devbase *ib; /* i->i_base */ 11225ecc953bSthorpej struct devbase *ab; /* not NULL => at another dev */ 11234caf067bSdholland struct attrlist *al; 11245ecc953bSthorpej struct deva *iba; /* devbase attachment used */ 11255ecc953bSthorpej const char *cp; 11265ecc953bSthorpej int atunit; 11275ecc953bSthorpej char atbuf[NAMESIZE]; 11285ecc953bSthorpej int hit; 11295ecc953bSthorpej 11305ecc953bSthorpej ab = NULL; 11315ecc953bSthorpej iba = NULL; 11325ecc953bSthorpej if (at == NULL) { 11335ecc953bSthorpej /* "at root" */ 11345ecc953bSthorpej p = NULL; 11355ecc953bSthorpej if ((i = getdevi(name)) == NULL) 11365ecc953bSthorpej goto bad; 11375ecc953bSthorpej /* 11385ecc953bSthorpej * Must warn about i_unit > 0 later, after taking care of 11395ecc953bSthorpej * the STAR cases (we could do non-star's here but why 11405ecc953bSthorpej * bother?). Make sure this device can be at root. 11415ecc953bSthorpej */ 11425ecc953bSthorpej ib = i->i_base; 11435ecc953bSthorpej hit = 0; 11445ecc953bSthorpej for (iba = ib->d_ahead; iba != NULL; iba = iba->d_bsame) 11455ecc953bSthorpej if (onlist(iba->d_atlist, NULL)) { 11465ecc953bSthorpej hit = 1; 11475ecc953bSthorpej break; 11485ecc953bSthorpej } 11495ecc953bSthorpej if (!hit) { 1150c7295a4cSchristos cfgerror("`%s' cannot attach to the root", ib->d_name); 11515ec393e9Scube i->i_active = DEVI_BROKEN; 11525ecc953bSthorpej goto bad; 11535ecc953bSthorpej } 11545ecc953bSthorpej attr = &errattr; /* a convenient "empty" attr */ 11555ecc953bSthorpej } else { 11565ecc953bSthorpej if (split(at, strlen(at), atbuf, sizeof atbuf, &atunit)) { 1157c7295a4cSchristos cfgerror("invalid attachment name `%s'", at); 11585ecc953bSthorpej /* (void)getdevi(name); -- ??? */ 11595ecc953bSthorpej goto bad; 11605ecc953bSthorpej } 11615ecc953bSthorpej if ((i = getdevi(name)) == NULL) 11625ecc953bSthorpej goto bad; 11635ecc953bSthorpej ib = i->i_base; 11645ecc953bSthorpej 11655ecc953bSthorpej /* 11665ecc953bSthorpej * Devices can attach to two types of things: Attributes, 11675ecc953bSthorpej * and other devices (which have the appropriate attributes 11685ecc953bSthorpej * to allow attachment). 11695ecc953bSthorpej * 11705ecc953bSthorpej * (1) If we're attached to an attribute, then we don't need 11715ecc953bSthorpej * look at the parent base device to see what attributes 11725ecc953bSthorpej * it has, and make sure that we can attach to them. 11735ecc953bSthorpej * 11745ecc953bSthorpej * (2) If we're attached to a real device (i.e. named in 11755ecc953bSthorpej * the config file), we want to remember that so that 11765ecc953bSthorpej * at cross-check time, if the device we're attached to 11775ecc953bSthorpej * is missing but other devices which also provide the 11785ecc953bSthorpej * attribute are present, we don't get a false "OK." 11795ecc953bSthorpej * 11805ecc953bSthorpej * (3) If the thing we're attached to is an attribute 11815ecc953bSthorpej * but is actually named in the config file, we still 11825ecc953bSthorpej * have to remember its devbase. 11835ecc953bSthorpej */ 11845ecc953bSthorpej cp = intern(atbuf); 11855ecc953bSthorpej 11865ecc953bSthorpej /* Figure out parent's devbase, to satisfy case (3). */ 11875ecc953bSthorpej ab = ht_lookup(devbasetab, cp); 11885ecc953bSthorpej 11895ecc953bSthorpej /* Find out if it's an attribute. */ 11905ecc953bSthorpej attr = ht_lookup(attrtab, cp); 11915ecc953bSthorpej 11925ecc953bSthorpej /* Make sure we're _really_ attached to the attr. Case (1). */ 11935ecc953bSthorpej if (attr != NULL && onlist(attr->a_devs, ib)) 11945ecc953bSthorpej goto findattachment; 11955ecc953bSthorpej 11965ecc953bSthorpej /* 11975ecc953bSthorpej * Else a real device, and not just an attribute. Case (2). 11985ecc953bSthorpej * 11995ecc953bSthorpej * Have to work a bit harder to see whether we have 12005ecc953bSthorpej * something like "tg0 at esp0" (where esp is merely 12015ecc953bSthorpej * not an attribute) or "tg0 at nonesuch0" (where 12025ecc953bSthorpej * nonesuch is not even a device). 12035ecc953bSthorpej */ 12045ecc953bSthorpej if (ab == NULL) { 1205c7295a4cSchristos cfgerror("%s at %s: `%s' unknown", 12065ecc953bSthorpej name, at, atbuf); 12075ec393e9Scube i->i_active = DEVI_BROKEN; 12085ecc953bSthorpej goto bad; 12095ecc953bSthorpej } 12105ecc953bSthorpej 12115ecc953bSthorpej /* 12125ecc953bSthorpej * See if the named parent carries an attribute 12135ecc953bSthorpej * that allows it to supervise device ib. 12145ecc953bSthorpej */ 12154caf067bSdholland for (al = ab->d_attrs; al != NULL; al = al->al_next) { 12164caf067bSdholland attr = al->al_this; 12175ecc953bSthorpej if (onlist(attr->a_devs, ib)) 12185ecc953bSthorpej goto findattachment; 12195ecc953bSthorpej } 1220c7295a4cSchristos cfgerror("`%s' cannot attach to `%s'", ib->d_name, atbuf); 12215ec393e9Scube i->i_active = DEVI_BROKEN; 12225ecc953bSthorpej goto bad; 12235ecc953bSthorpej 12245ecc953bSthorpej findattachment: 12255ecc953bSthorpej /* 12265ecc953bSthorpej * Find the parent spec. If a matching one has not yet been 12275ecc953bSthorpej * created, create one. 12285ecc953bSthorpej */ 12295ecc953bSthorpej p = getpspec(attr, ab, atunit); 12305ecc953bSthorpej p->p_devs = newnv(NULL, NULL, i, 0, p->p_devs); 12315ecc953bSthorpej 12325ecc953bSthorpej /* find out which attachment it uses */ 12335ecc953bSthorpej hit = 0; 12345ecc953bSthorpej for (iba = ib->d_ahead; iba != NULL; iba = iba->d_bsame) 12355ecc953bSthorpej if (onlist(iba->d_atlist, attr)) { 12365ecc953bSthorpej hit = 1; 12375ecc953bSthorpej break; 12385ecc953bSthorpej } 12395ecc953bSthorpej if (!hit) 12405ecc953bSthorpej panic("adddev: can't figure out attachment"); 12415ecc953bSthorpej } 12425ec393e9Scube if ((i->i_locs = fixloc(name, attr, loclist)) == NULL) { 12435ec393e9Scube i->i_active = DEVI_BROKEN; 12445ecc953bSthorpej goto bad; 12455ec393e9Scube } 12465ecc953bSthorpej i->i_at = at; 12475ecc953bSthorpej i->i_pspec = p; 12485ecc953bSthorpej i->i_atdeva = iba; 12495ecc953bSthorpej i->i_cfflags = flags; 1250bc707469Suebayasi CFGDBG(3, "devi `%s' added", i->i_name); 12515ecc953bSthorpej 12525ecc953bSthorpej *iba->d_ipp = i; 12535ecc953bSthorpej iba->d_ipp = &i->i_asame; 12545ecc953bSthorpej 12555ecc953bSthorpej /* all done, fall into ... */ 12565ecc953bSthorpej bad: 125716a8771bSdholland loclist_destroy(loclist); 12585ecc953bSthorpej return; 12595ecc953bSthorpej } 12605ecc953bSthorpej 12615ecc953bSthorpej void 12627b7c582aScube deldevi(const char *name, const char *at) 12635ecc953bSthorpej { 12647b7c582aScube struct devi *firsti, *i; 12655ecc953bSthorpej struct devbase *d; 12665ecc953bSthorpej int unit; 12675ecc953bSthorpej char base[NAMESIZE]; 12685ecc953bSthorpej 126975eb07f2Suebayasi CFGDBG(5, "deselecting devi `%s'", name); 12705ecc953bSthorpej if (split(name, strlen(name), base, sizeof base, &unit)) { 1271c7295a4cSchristos cfgerror("invalid device name `%s'", name); 12725ecc953bSthorpej return; 12735ecc953bSthorpej } 12745ecc953bSthorpej d = ht_lookup(devbasetab, intern(base)); 12755ecc953bSthorpej if (d == NULL) { 1276c7295a4cSchristos cfgerror("%s: unknown device `%s'", name, base); 12775ecc953bSthorpej return; 12785ecc953bSthorpej } 12795ecc953bSthorpej if (d->d_ispseudo) { 1280c7295a4cSchristos cfgerror("%s: %s is a pseudo-device", name, base); 12815ecc953bSthorpej return; 12825ecc953bSthorpej } 12835ecc953bSthorpej if ((firsti = ht_lookup(devitab, name)) == NULL) { 1284c7295a4cSchristos cfgerror("`%s' not defined", name); 12855ecc953bSthorpej return; 12865ecc953bSthorpej } 12877b7c582aScube if (at == NULL && firsti->i_at == NULL) { 1288e499d8b5Scube /* 'at root' */ 12897b7c582aScube remove_devi(firsti); 12907b7c582aScube return; 12917b7c582aScube } else if (at != NULL) 12927b7c582aScube for (i = firsti; i != NULL; i = i->i_alias) 1293bfc250f2Scube if (i->i_active != DEVI_BROKEN && 1294bfc250f2Scube strcmp(at, i->i_at) == 0) { 12957b7c582aScube remove_devi(i); 12965ecc953bSthorpej return; 12975ecc953bSthorpej } 1298c7295a4cSchristos cfgerror("`%s' at `%s' not found", name, at ? at : "root"); 1299e499d8b5Scube } 13005ecc953bSthorpej 13017b7c582aScube static void 13027b7c582aScube remove_devi(struct devi *i) 13037b7c582aScube { 13047b7c582aScube struct devbase *d = i->i_base; 13057b7c582aScube struct devi *f, *j, **ppi; 13067b7c582aScube struct deva *iba; 13077b7c582aScube 13088d928a75Suebayasi CFGDBG(5, "removing devi `%s'", i->i_name); 13097b7c582aScube f = ht_lookup(devitab, i->i_name); 13106a6299ebScube if (f == NULL) 13116a6299ebScube panic("remove_devi(): instance %s disappeared from devitab", 13126a6299ebScube i->i_name); 13137b7c582aScube 1314bfc250f2Scube if (i->i_active == DEVI_BROKEN) { 1315bfc250f2Scube cfgerror("not removing broken instance `%s'", i->i_name); 1316bfc250f2Scube return; 1317bfc250f2Scube } 1318bfc250f2Scube 1319e499d8b5Scube /* 1320e499d8b5Scube * We have the device instance, i. 1321e499d8b5Scube * We have to: 1322e499d8b5Scube * - delete the alias 1323e499d8b5Scube * 1324e499d8b5Scube * If the devi was an alias of an already listed devi, all is 1325e499d8b5Scube * good we don't have to do more. 1326e499d8b5Scube * If it was the first alias, we have to replace i's entry in 1327e499d8b5Scube * d's list by its first alias. 1328e499d8b5Scube * If it was the only entry, we must remove i's entry from d's 1329e499d8b5Scube * list. 1330e499d8b5Scube */ 13317b7c582aScube if (i != f) { 1332db7dbdacSuebayasi for (j = f; j->i_alias != i; j = j->i_alias) 1333db7dbdacSuebayasi continue; 13347b7c582aScube j->i_alias = i->i_alias; 13353b405775Scube } else { 13363b405775Scube if (i->i_alias == NULL) { 1337e499d8b5Scube /* No alias, must unlink the entry from devitab */ 13387b7c582aScube ht_remove(devitab, i->i_name); 13397b7c582aScube j = i->i_bsame; 13403b405775Scube } else { 1341e499d8b5Scube /* Or have the first alias replace i in d's list */ 1342e499d8b5Scube i->i_alias->i_bsame = i->i_bsame; 13437b7c582aScube j = i->i_alias; 13447b7c582aScube if (i == f) 13457b7c582aScube ht_replace(devitab, i->i_name, i->i_alias); 13463b405775Scube } 13473b405775Scube 1348e499d8b5Scube /* 1349e499d8b5Scube * - remove/replace the instance from the devbase's list 1350e499d8b5Scube * 1351e499d8b5Scube * A double-linked list would make this much easier. Oh, well, 1352e499d8b5Scube * what is done is done. 1353e499d8b5Scube */ 1354e499d8b5Scube for (ppi = &d->d_ihead; 1355e499d8b5Scube *ppi != NULL && *ppi != i && (*ppi)->i_bsame != i; 1356db7dbdacSuebayasi ppi = &(*ppi)->i_bsame) 1357db7dbdacSuebayasi continue; 1358e499d8b5Scube if (*ppi == NULL) 1359c3414672Scube panic("deldev: dev (%s) doesn't list the devi" 1360c3414672Scube " (%s at %s)", d->d_name, i->i_name, i->i_at); 13617b7c582aScube f = *ppi; 13627b7c582aScube if (f == i) 1363c3414672Scube /* That implies d->d_ihead == i */ 13647b7c582aScube *ppi = j; 1365e499d8b5Scube else 13667b7c582aScube (*ppi)->i_bsame = j; 1367e499d8b5Scube if (d->d_ipp == &i->i_bsame) { 13683b405775Scube if (i->i_alias == NULL) { 13697b7c582aScube if (f == i) 1370e499d8b5Scube d->d_ipp = &d->d_ihead; 1371e499d8b5Scube else 13727b7c582aScube d->d_ipp = &f->i_bsame; 13733b405775Scube } else 13743b405775Scube d->d_ipp = &i->i_alias->i_bsame; 1375e499d8b5Scube } 1376e499d8b5Scube } 1377e499d8b5Scube /* 1378e499d8b5Scube * - delete the attachment instance 1379e499d8b5Scube */ 1380e499d8b5Scube iba = i->i_atdeva; 1381e499d8b5Scube for (ppi = &iba->d_ihead; 1382e499d8b5Scube *ppi != NULL && *ppi != i && (*ppi)->i_asame != i; 1383db7dbdacSuebayasi ppi = &(*ppi)->i_asame) 1384db7dbdacSuebayasi continue; 1385e499d8b5Scube if (*ppi == NULL) 1386e499d8b5Scube panic("deldev: deva (%s) doesn't list the devi (%s)", 1387e499d8b5Scube iba->d_name, i->i_name); 13887b7c582aScube f = *ppi; 13897b7c582aScube if (f == i) 1390c3414672Scube /* That implies iba->d_ihead == i */ 1391e499d8b5Scube *ppi = i->i_asame; 1392e499d8b5Scube else 1393e499d8b5Scube (*ppi)->i_asame = i->i_asame; 1394e499d8b5Scube if (iba->d_ipp == &i->i_asame) { 13957b7c582aScube if (f == i) 1396e499d8b5Scube iba->d_ipp = &iba->d_ihead; 1397e499d8b5Scube else 13987b7c582aScube iba->d_ipp = &f->i_asame; 1399e499d8b5Scube } 1400e499d8b5Scube /* 1401e499d8b5Scube * - delete the pspec 1402e499d8b5Scube */ 1403e499d8b5Scube if (i->i_pspec) { 1404e499d8b5Scube struct pspec *p = i->i_pspec; 1405e499d8b5Scube struct nvlist *nv, *onv; 1406e499d8b5Scube 1407e499d8b5Scube /* Double-linked nvlist anyone? */ 1408c0024066Scube for (nv = p->p_devs; nv->nv_next != NULL; nv = nv->nv_next) { 1409e499d8b5Scube if (nv->nv_next && nv->nv_next->nv_ptr == i) { 1410e499d8b5Scube onv = nv->nv_next; 1411e499d8b5Scube nv->nv_next = onv->nv_next; 1412e499d8b5Scube nvfree(onv); 1413e499d8b5Scube break; 1414c0024066Scube } 1415c0024066Scube if (nv->nv_ptr == i) { 1416e499d8b5Scube /* nv is p->p_devs in that case */ 1417e499d8b5Scube p->p_devs = nv->nv_next; 1418e499d8b5Scube nvfree(nv); 1419e499d8b5Scube break; 1420e499d8b5Scube } 1421e499d8b5Scube } 1422e499d8b5Scube if (p->p_devs == NULL) 1423e499d8b5Scube TAILQ_REMOVE(&allpspecs, p, p_list); 1424e499d8b5Scube } 1425e499d8b5Scube /* 1426e499d8b5Scube * - delete the alldevi entry 1427e499d8b5Scube */ 1428e499d8b5Scube TAILQ_REMOVE(&alldevi, i, i_next); 1429e499d8b5Scube ndevi--; 14307aa6070dScube /* 14317aa6070dScube * Put it in deaddevitab 1432a31ff6b4Scube * 1433a31ff6b4Scube * Each time a devi is removed, devilevel is increased so that later on 1434a31ff6b4Scube * it is possible to tell if an instance was added before or after the 1435a31ff6b4Scube * removal of its parent. 1436a31ff6b4Scube * 1437a31ff6b4Scube * For active instances, i_level contains the number of devi removed so 1438a31ff6b4Scube * far, and for dead devis, it contains its index. 14397aa6070dScube */ 1440a31ff6b4Scube i->i_level = devilevel++; 14417aa6070dScube i->i_alias = NULL; 14427aa6070dScube f = ht_lookup(deaddevitab, i->i_name); 14437aa6070dScube if (f == NULL) { 14447aa6070dScube if (ht_insert(deaddevitab, i->i_name, i)) 14457aa6070dScube panic("remove_devi(%s) - can't add to deaddevitab", 14467aa6070dScube i->i_name); 14477aa6070dScube } else { 1448db7dbdacSuebayasi for (j = f; j->i_alias != NULL; j = j->i_alias) 1449db7dbdacSuebayasi continue; 14507aa6070dScube j->i_alias = i; 14517aa6070dScube } 1452e499d8b5Scube /* 14535d1e8b27Swiz * - reconstruct d->d_umax 1454e499d8b5Scube */ 1455e499d8b5Scube d->d_umax = 0; 1456e499d8b5Scube for (i = d->d_ihead; i != NULL; i = i->i_bsame) 1457e499d8b5Scube if (i->i_unit >= d->d_umax) 1458e499d8b5Scube d->d_umax = i->i_unit + 1; 14595ecc953bSthorpej } 14605ecc953bSthorpej 14615ecc953bSthorpej void 14627b7c582aScube deldeva(const char *at) 14637b7c582aScube { 14647b7c582aScube int unit; 14657b7c582aScube const char *cp; 14667b7c582aScube struct devbase *d, *ad; 14677b7c582aScube struct devi *i, *j; 14687b7c582aScube struct attr *a; 14697b7c582aScube struct pspec *p; 14707b7c582aScube struct nvlist *nv, *stack = NULL; 14717b7c582aScube 14727b7c582aScube if (at == NULL) { 14737b7c582aScube TAILQ_FOREACH(i, &alldevi, i_next) 14747b7c582aScube if (i->i_at == NULL) 14757b7c582aScube stack = newnv(NULL, NULL, i, 0, stack); 14767b7c582aScube } else { 14779a7f4bbaSchristos size_t l; 14787b7c582aScube 147975eb07f2Suebayasi CFGDBG(5, "deselecting deva `%s'", at); 14809a7f4bbaSchristos if (at[0] == '\0') 14819a7f4bbaSchristos goto out; 14829a7f4bbaSchristos 14837b7c582aScube l = strlen(at) - 1; 14847b7c582aScube if (at[l] == '?' || isdigit((unsigned char)at[l])) { 14857b7c582aScube char base[NAMESIZE]; 14867b7c582aScube 14877b7c582aScube if (split(at, l+1, base, sizeof base, &unit)) { 14889a7f4bbaSchristos out: 1489c7295a4cSchristos cfgerror("invalid attachment name `%s'", at); 14907b7c582aScube return; 14917b7c582aScube } 14927b7c582aScube cp = intern(base); 14937b7c582aScube } else { 14947b7c582aScube cp = intern(at); 14957b7c582aScube unit = STAR; 14967b7c582aScube } 14977b7c582aScube 14987b7c582aScube ad = ht_lookup(devbasetab, cp); 14997b7c582aScube a = ht_lookup(attrtab, cp); 15007b7c582aScube if (a == NULL) { 1501c7295a4cSchristos cfgerror("unknown attachment attribute or device `%s'", 15027b7c582aScube cp); 15037b7c582aScube return; 15047b7c582aScube } 15057b7c582aScube if (!a->a_iattr) { 1506c7295a4cSchristos cfgerror("plain attribute `%s' cannot have children", 15077b7c582aScube a->a_name); 15087b7c582aScube return; 15097b7c582aScube } 15107b7c582aScube 15117b7c582aScube /* 15127b7c582aScube * remove_devi() makes changes to the devbase's list and the 15137b7c582aScube * alias list, * so the actual deletion of the instances must 15147b7c582aScube * be delayed. 15157b7c582aScube */ 15167b7c582aScube for (nv = a->a_devs; nv != NULL; nv = nv->nv_next) { 15177b7c582aScube d = nv->nv_ptr; 15187b7c582aScube for (i = d->d_ihead; i != NULL; i = i->i_bsame) 15197b7c582aScube for (j = i; j != NULL; j = j->i_alias) { 15207b7c582aScube /* Ignore devices at root */ 15217b7c582aScube if (j->i_at == NULL) 15227b7c582aScube continue; 15237b7c582aScube p = j->i_pspec; 15247b7c582aScube /* 15257b7c582aScube * There are three cases: 15267b7c582aScube * 15277b7c582aScube * 1. unit is not STAR. Consider 'at' 15287b7c582aScube * to be explicit, even if it 15297b7c582aScube * references an interface 15307b7c582aScube * attribute. 15317b7c582aScube * 15327b7c582aScube * 2. unit is STAR and 'at' references 15337b7c582aScube * a real device. Look for pspec 15347b7c582aScube * that have a matching p_atdev 15357b7c582aScube * field. 15367b7c582aScube * 15377b7c582aScube * 3. unit is STAR and 'at' references 15387b7c582aScube * an interface attribute. Look 15397b7c582aScube * for pspec that have a matching 15407b7c582aScube * p_iattr field. 15417b7c582aScube */ 15427b7c582aScube if ((unit != STAR && /* Case */ 15437b7c582aScube !strcmp(j->i_at, at)) || /* 1 */ 15447b7c582aScube (unit == STAR && 15457b7c582aScube ((ad != NULL && /* Case */ 15467b7c582aScube p->p_atdev == ad) || /* 2 */ 15477b7c582aScube (ad == NULL && /* Case */ 15487b7c582aScube p->p_iattr == a)))) /* 3 */ 15497b7c582aScube stack = newnv(NULL, NULL, j, 0, 15507b7c582aScube stack); 15517b7c582aScube } 15527b7c582aScube } 15537b7c582aScube } 15547b7c582aScube 15557b7c582aScube for (nv = stack; nv != NULL; nv = nv->nv_next) 15567b7c582aScube remove_devi(nv->nv_ptr); 1557e50e4ee4Scube nvfreel(stack); 15587b7c582aScube } 15597b7c582aScube 15607b7c582aScube void 15617b7c582aScube deldev(const char *name) 15627b7c582aScube { 15639a7f4bbaSchristos size_t l; 15647b7c582aScube struct devi *firsti, *i; 15657b7c582aScube struct nvlist *nv, *stack = NULL; 15667b7c582aScube 156775eb07f2Suebayasi CFGDBG(5, "deselecting dev `%s'", name); 15689a7f4bbaSchristos if (name[0] == '\0') 15699a7f4bbaSchristos goto out; 15709a7f4bbaSchristos 15717b7c582aScube l = strlen(name) - 1; 15727b7c582aScube if (name[l] == '*' || isdigit((unsigned char)name[l])) { 15737b7c582aScube /* `no mydev0' or `no mydev*' */ 15747b7c582aScube firsti = ht_lookup(devitab, name); 15757b7c582aScube if (firsti == NULL) { 15769a7f4bbaSchristos out: 1577c7295a4cSchristos cfgerror("unknown instance %s", name); 15787b7c582aScube return; 15797b7c582aScube } 15807b7c582aScube for (i = firsti; i != NULL; i = i->i_alias) 15817b7c582aScube stack = newnv(NULL, NULL, i, 0, stack); 15827b7c582aScube } else { 15837b7c582aScube struct devbase *d = ht_lookup(devbasetab, name); 15847b7c582aScube 15857b7c582aScube if (d == NULL) { 1586c7295a4cSchristos cfgerror("unknown device %s", name); 15877b7c582aScube return; 15887b7c582aScube } 158971af9028Scube if (d->d_ispseudo) { 1590c7295a4cSchristos cfgerror("%s is a pseudo-device; " 159171af9028Scube "use \"no pseudo-device %s\" instead", name, 159271af9028Scube name); 159371af9028Scube return; 159471af9028Scube } 15957b7c582aScube 15967b7c582aScube for (firsti = d->d_ihead; firsti != NULL; 15977b7c582aScube firsti = firsti->i_bsame) 15987b7c582aScube for (i = firsti; i != NULL; i = i->i_alias) 15997b7c582aScube stack = newnv(NULL, NULL, i, 0, stack); 16007b7c582aScube } 16017b7c582aScube 16027b7c582aScube for (nv = stack; nv != NULL; nv = nv->nv_next) 16037b7c582aScube remove_devi(nv->nv_ptr); 1604e50e4ee4Scube nvfreel(stack); 16057b7c582aScube } 16067b7c582aScube 160700ed8a38Spooka /* 160800ed8a38Spooka * Insert given device "name" into devroottab. In case "name" 160900ed8a38Spooka * designates a pure interface attribute, create a fake device 161000ed8a38Spooka * instance for the attribute and insert that into the roottab 161100ed8a38Spooka * (this scheme avoids mucking around with the orphanage analysis). 161200ed8a38Spooka */ 16137b7c582aScube void 161490ac64deSpooka addpseudoroot(const char *name) 161590ac64deSpooka { 1616194e1c80Spooka char buf[NAMESIZE]; 1617194e1c80Spooka int unit; 1618194e1c80Spooka struct attr *attr; 161990ac64deSpooka struct devi *i; 162090ac64deSpooka struct deva *iba; 162190ac64deSpooka struct devbase *ib; 162290ac64deSpooka 1623194e1c80Spooka if (split(name, strlen(name), buf, sizeof(buf), &unit)) { 1624194e1c80Spooka cfgerror("invalid pseudo-root name `%s'", name); 1625194e1c80Spooka return; 1626194e1c80Spooka } 1627194e1c80Spooka 1628194e1c80Spooka /* 162900ed8a38Spooka * Prefer device because devices with locators define an 163000ed8a38Spooka * implicit interface attribute. However, if a device is 163100ed8a38Spooka * not available, try to attach to the interface attribute. 163200ed8a38Spooka * This makes sure adddev() doesn't get confused when we 163300ed8a38Spooka * are really attaching to a device (alternatively we maybe 163400ed8a38Spooka * could specify a non-NULL atlist to defdevattach() below). 1635194e1c80Spooka */ 163600ed8a38Spooka ib = ht_lookup(devbasetab, intern(buf)); 163700ed8a38Spooka if (ib == NULL) { 1638194e1c80Spooka struct devbase *fakedev; 1639194e1c80Spooka char fakename[NAMESIZE]; 1640194e1c80Spooka 164100ed8a38Spooka attr = ht_lookup(attrtab, intern(buf)); 164200ed8a38Spooka if (!(attr && attr->a_iattr)) { 164300ed8a38Spooka cfgerror("pseudo-root `%s' not available", name); 164400ed8a38Spooka return; 164500ed8a38Spooka } 164600ed8a38Spooka 1647194e1c80Spooka /* 1648194e1c80Spooka * here we cheat a bit: create a fake devbase with the 1649194e1c80Spooka * interface attribute and instantiate it. quick, cheap, 1650194e1c80Spooka * dirty & bad for you, much like the stuff in the fridge. 1651194e1c80Spooka * and, it works, since the pseudoroot device is not included 1652194e1c80Spooka * in ioconf, just used by config to make sure we start from 1653194e1c80Spooka * the right place. 1654194e1c80Spooka */ 165500ed8a38Spooka snprintf(fakename, sizeof(fakename), "%s_devattrs", buf); 1656194e1c80Spooka fakedev = getdevbase(intern(fakename)); 1657194e1c80Spooka fakedev->d_isdef = 1; 1658194e1c80Spooka fakedev->d_ispseudo = 0; 16594caf067bSdholland fakedev->d_attrs = attrlist_cons(NULL, attr); 1660194e1c80Spooka defdevattach(NULL, fakedev, NULL, NULL); 1661194e1c80Spooka 1662194e1c80Spooka if (unit == STAR) 1663194e1c80Spooka snprintf(buf, sizeof(buf), "%s*", fakename); 1664194e1c80Spooka else 1665194e1c80Spooka snprintf(buf, sizeof(buf), "%s%d", fakename, unit); 1666194e1c80Spooka name = buf; 1667194e1c80Spooka } 1668194e1c80Spooka 1669194e1c80Spooka /* ok, everything should be set up, so instantiate a fake device */ 167090ac64deSpooka i = getdevi(name); 167190ac64deSpooka if (i == NULL) 167200ed8a38Spooka panic("device `%s' expected to be present", name); 167390ac64deSpooka ib = i->i_base; 1674194e1c80Spooka iba = ib->d_ahead; 167590ac64deSpooka 167690ac64deSpooka i->i_atdeva = iba; 167790ac64deSpooka i->i_cfflags = 0; 167890ac64deSpooka i->i_locs = fixloc(name, &errattr, NULL); 167990ac64deSpooka i->i_pseudoroot = 1; 168090ac64deSpooka i->i_active = DEVI_ORPHAN; /* set active by kill_orphans() */ 168190ac64deSpooka 168290ac64deSpooka *iba->d_ipp = i; 168390ac64deSpooka iba->d_ipp = &i->i_asame; 168490ac64deSpooka 168590ac64deSpooka ht_insert(devroottab, ib->d_name, ib); 168690ac64deSpooka } 168790ac64deSpooka 168890ac64deSpooka void 16895ecc953bSthorpej addpseudo(const char *name, int number) 16905ecc953bSthorpej { 16915ecc953bSthorpej struct devbase *d; 16925ecc953bSthorpej struct devi *i; 16935ecc953bSthorpej 16945ecc953bSthorpej d = ht_lookup(devbasetab, name); 16955ecc953bSthorpej if (d == NULL) { 1696c7295a4cSchristos cfgerror("undefined pseudo-device %s", name); 16975ecc953bSthorpej return; 16985ecc953bSthorpej } 16995ecc953bSthorpej if (!d->d_ispseudo) { 1700c7295a4cSchristos cfgerror("%s is a real device, not a pseudo-device", name); 17015ecc953bSthorpej return; 17025ecc953bSthorpej } 17035ecc953bSthorpej if (ht_lookup(devitab, name) != NULL) { 1704c7295a4cSchristos cfgerror("`%s' already defined", name); 17055ecc953bSthorpej return; 17065ecc953bSthorpej } 17075ecc953bSthorpej i = newdevi(name, number - 1, d); /* foo 16 => "foo0..foo15" */ 17085ecc953bSthorpej if (ht_insert(devitab, name, i)) 17095ecc953bSthorpej panic("addpseudo(%s)", name); 17107b7c582aScube /* Useful to retrieve the instance from the devbase */ 17117b7c582aScube d->d_ihead = i; 17127aa6070dScube i->i_active = DEVI_ACTIVE; 17135ecc953bSthorpej TAILQ_INSERT_TAIL(&allpseudo, i, i_next); 17145ecc953bSthorpej } 17155ecc953bSthorpej 17165ecc953bSthorpej void 17175ecc953bSthorpej delpseudo(const char *name) 17185ecc953bSthorpej { 17195ecc953bSthorpej struct devbase *d; 17205ecc953bSthorpej struct devi *i; 17215ecc953bSthorpej 172275eb07f2Suebayasi CFGDBG(5, "deselecting pseudo `%s'", name); 17235ecc953bSthorpej d = ht_lookup(devbasetab, name); 17245ecc953bSthorpej if (d == NULL) { 1725c7295a4cSchristos cfgerror("undefined pseudo-device %s", name); 17265ecc953bSthorpej return; 17275ecc953bSthorpej } 17285ecc953bSthorpej if (!d->d_ispseudo) { 1729c7295a4cSchristos cfgerror("%s is a real device, not a pseudo-device", name); 17305ecc953bSthorpej return; 17315ecc953bSthorpej } 17325ecc953bSthorpej if ((i = ht_lookup(devitab, name)) == NULL) { 1733c7295a4cSchristos cfgerror("`%s' not defined", name); 17345ecc953bSthorpej return; 17355ecc953bSthorpej } 17365ecc953bSthorpej d->d_umax = 0; /* clear neads-count entries */ 17377aa6070dScube d->d_ihead = NULL; /* make sure it won't be considered active */ 17385ecc953bSthorpej TAILQ_REMOVE(&allpseudo, i, i_next); 17395ecc953bSthorpej if (ht_remove(devitab, name)) 17405ecc953bSthorpej panic("delpseudo(%s) - can't remove from devitab", name); 17417aa6070dScube if (ht_insert(deaddevitab, name, i)) 17427aa6070dScube panic("delpseudo(%s) - can't add to deaddevitab", name); 17435ecc953bSthorpej } 17445ecc953bSthorpej 17455ecc953bSthorpej void 1746d767912bSdrochner adddevm(const char *name, devmajor_t cmajor, devmajor_t bmajor, 17479483bda7Sdholland struct condexpr *cond, struct nvlist *nv_nodes) 17485ecc953bSthorpej { 17495ecc953bSthorpej struct devm *dm; 17505ecc953bSthorpej 1751d767912bSdrochner if (cmajor != NODEVMAJOR && (cmajor < 0 || cmajor >= 4096)) { 1752c7295a4cSchristos cfgerror("character major %d is invalid", cmajor); 17539483bda7Sdholland condexpr_destroy(cond); 17543da3ab25Spooka nvfreel(nv_nodes); 17555ecc953bSthorpej return; 17565ecc953bSthorpej } 17575ecc953bSthorpej 1758d767912bSdrochner if (bmajor != NODEVMAJOR && (bmajor < 0 || bmajor >= 4096)) { 1759c7295a4cSchristos cfgerror("block major %d is invalid", bmajor); 17609483bda7Sdholland condexpr_destroy(cond); 17613da3ab25Spooka nvfreel(nv_nodes); 17625ecc953bSthorpej return; 17635ecc953bSthorpej } 1764d767912bSdrochner if (cmajor == NODEVMAJOR && bmajor == NODEVMAJOR) { 1765c7295a4cSchristos cfgerror("both character/block majors are not specified"); 17669483bda7Sdholland condexpr_destroy(cond); 17673da3ab25Spooka nvfreel(nv_nodes); 17685ecc953bSthorpej return; 17695ecc953bSthorpej } 17705ecc953bSthorpej 17715ecc953bSthorpej dm = ecalloc(1, sizeof(*dm)); 17725ecc953bSthorpej dm->dm_srcfile = yyfile; 17735ecc953bSthorpej dm->dm_srcline = currentline(); 17745ecc953bSthorpej dm->dm_name = name; 17755ecc953bSthorpej dm->dm_cmajor = cmajor; 17765ecc953bSthorpej dm->dm_bmajor = bmajor; 17779483bda7Sdholland dm->dm_opts = cond; 17783da3ab25Spooka dm->dm_devnodes = nv_nodes; 17795ecc953bSthorpej 17805ecc953bSthorpej TAILQ_INSERT_TAIL(&alldevms, dm, dm_next); 17815ecc953bSthorpej 17825ecc953bSthorpej maxcdevm = MAX(maxcdevm, dm->dm_cmajor); 17835ecc953bSthorpej maxbdevm = MAX(maxbdevm, dm->dm_bmajor); 17845ecc953bSthorpej } 17855ecc953bSthorpej 17867aa6070dScube int 17875ecc953bSthorpej fixdevis(void) 17885ecc953bSthorpej { 17895ecc953bSthorpej struct devi *i; 17907aa6070dScube int error = 0; 17915ecc953bSthorpej 1792bc707469Suebayasi TAILQ_FOREACH(i, &alldevi, i_next) { 1793bc707469Suebayasi CFGDBG(3, "fixing devis `%s'", i->i_name); 17947aa6070dScube if (i->i_active == DEVI_ACTIVE) 17955ecc953bSthorpej selectbase(i->i_base, i->i_atdeva); 17967aa6070dScube else if (i->i_active == DEVI_ORPHAN) { 1797c130d400Scube /* 1798c130d400Scube * At this point, we can't have instances for which 1799c130d400Scube * i_at or i_pspec are NULL. 1800c130d400Scube */ 18017aa6070dScube ++error; 1802c7295a4cSchristos cfgxerror(i->i_srcfile, i->i_lineno, 18030dbd1c0eScube "`%s at %s' is orphaned (%s `%s' found)", 1804c130d400Scube i->i_name, i->i_at, i->i_pspec->p_atunit == WILD ? 1805c130d400Scube "nothing matching" : "no", i->i_at); 18067aa6070dScube } else if (vflag && i->i_active == DEVI_IGNORED) 1807c7295a4cSchristos cfgxwarn(i->i_srcfile, i->i_lineno, "ignoring " 1808c7295a4cSchristos "explicitly orphaned instance `%s at %s'", 1809c7295a4cSchristos i->i_name, i->i_at); 1810bc707469Suebayasi } 18117aa6070dScube 18127aa6070dScube if (error) 18137aa6070dScube return error; 18145ecc953bSthorpej 18155ecc953bSthorpej TAILQ_FOREACH(i, &allpseudo, i_next) 18167aa6070dScube if (i->i_active == DEVI_ACTIVE) 18175ecc953bSthorpej selectbase(i->i_base, NULL); 18187aa6070dScube return 0; 18195ecc953bSthorpej } 18205ecc953bSthorpej 18215ecc953bSthorpej /* 18225ecc953bSthorpej * Look up a parent spec, creating a new one if it does not exist. 18235ecc953bSthorpej */ 18245ecc953bSthorpej static struct pspec * 18255ecc953bSthorpej getpspec(struct attr *attr, struct devbase *ab, int atunit) 18265ecc953bSthorpej { 18275ecc953bSthorpej struct pspec *p; 18285ecc953bSthorpej 18295ecc953bSthorpej TAILQ_FOREACH(p, &allpspecs, p_list) { 18305ecc953bSthorpej if (p->p_iattr == attr && 18315ecc953bSthorpej p->p_atdev == ab && 18325ecc953bSthorpej p->p_atunit == atunit) 18335ecc953bSthorpej return (p); 18345ecc953bSthorpej } 18355ecc953bSthorpej 18365ecc953bSthorpej p = ecalloc(1, sizeof(*p)); 18375ecc953bSthorpej 18385ecc953bSthorpej p->p_iattr = attr; 18395ecc953bSthorpej p->p_atdev = ab; 18405ecc953bSthorpej p->p_atunit = atunit; 18415ecc953bSthorpej p->p_inst = npspecs++; 1842c130d400Scube p->p_active = 0; 18435ecc953bSthorpej 18445ecc953bSthorpej TAILQ_INSERT_TAIL(&allpspecs, p, p_list); 18455ecc953bSthorpej 18465ecc953bSthorpej return (p); 18475ecc953bSthorpej } 18485ecc953bSthorpej 18495ecc953bSthorpej /* 18505ecc953bSthorpej * Define a new instance of a specific device. 18515ecc953bSthorpej */ 18525ecc953bSthorpej static struct devi * 18535ecc953bSthorpej getdevi(const char *name) 18545ecc953bSthorpej { 18555ecc953bSthorpej struct devi *i, *firsti; 18565ecc953bSthorpej struct devbase *d; 18575ecc953bSthorpej int unit; 18585ecc953bSthorpej char base[NAMESIZE]; 18595ecc953bSthorpej 18605ecc953bSthorpej if (split(name, strlen(name), base, sizeof base, &unit)) { 1861c7295a4cSchristos cfgerror("invalid device name `%s'", name); 18625ecc953bSthorpej return (NULL); 18635ecc953bSthorpej } 18645ecc953bSthorpej d = ht_lookup(devbasetab, intern(base)); 18655ecc953bSthorpej if (d == NULL) { 1866c7295a4cSchristos cfgerror("%s: unknown device `%s'", name, base); 18675ecc953bSthorpej return (NULL); 18685ecc953bSthorpej } 18695ecc953bSthorpej if (d->d_ispseudo) { 1870c7295a4cSchristos cfgerror("%s: %s is a pseudo-device", name, base); 18715ecc953bSthorpej return (NULL); 18725ecc953bSthorpej } 18735ecc953bSthorpej firsti = ht_lookup(devitab, name); 18745ecc953bSthorpej i = newdevi(name, unit, d); 18755ecc953bSthorpej if (firsti == NULL) { 18765ecc953bSthorpej if (ht_insert(devitab, name, i)) 18775ecc953bSthorpej panic("getdevi(%s)", name); 18785ecc953bSthorpej *d->d_ipp = i; 18795ecc953bSthorpej d->d_ipp = &i->i_bsame; 18805ecc953bSthorpej } else { 18815ecc953bSthorpej while (firsti->i_alias) 18825ecc953bSthorpej firsti = firsti->i_alias; 18835ecc953bSthorpej firsti->i_alias = i; 18845ecc953bSthorpej } 18855ecc953bSthorpej TAILQ_INSERT_TAIL(&alldevi, i, i_next); 18865ecc953bSthorpej ndevi++; 18875ecc953bSthorpej return (i); 18885ecc953bSthorpej } 18895ecc953bSthorpej 18905ecc953bSthorpej static const char * 18915ecc953bSthorpej concat(const char *name, int c) 18925ecc953bSthorpej { 1893c7295a4cSchristos size_t len; 18945ecc953bSthorpej char buf[NAMESIZE]; 18955ecc953bSthorpej 18965ecc953bSthorpej len = strlen(name); 18975ecc953bSthorpej if (len + 2 > sizeof(buf)) { 1898c7295a4cSchristos cfgerror("device name `%s%c' too long", name, c); 18995ecc953bSthorpej len = sizeof(buf) - 2; 19005ecc953bSthorpej } 19015ecc953bSthorpej memmove(buf, name, len); 19029a7f4bbaSchristos buf[len] = (char)c; 19039a7f4bbaSchristos buf[len + 1] = '\0'; 19045ecc953bSthorpej return (intern(buf)); 19055ecc953bSthorpej } 19065ecc953bSthorpej 19075ecc953bSthorpej const char * 19085ecc953bSthorpej starref(const char *name) 19095ecc953bSthorpej { 19105ecc953bSthorpej 19115ecc953bSthorpej return (concat(name, '*')); 19125ecc953bSthorpej } 19135ecc953bSthorpej 19145ecc953bSthorpej const char * 19155ecc953bSthorpej wildref(const char *name) 19165ecc953bSthorpej { 19175ecc953bSthorpej 19185ecc953bSthorpej return (concat(name, '?')); 19195ecc953bSthorpej } 19205ecc953bSthorpej 19215ecc953bSthorpej /* 19225ecc953bSthorpej * Split a name like "foo0" into base name (foo) and unit number (0). 19235ecc953bSthorpej * Return 0 on success. To make this useful for names like "foo0a", 19245ecc953bSthorpej * the length of the "foo0" part is one of the arguments. 19255ecc953bSthorpej */ 19265ecc953bSthorpej static int 19275ecc953bSthorpej split(const char *name, size_t nlen, char *base, size_t bsize, int *aunit) 19285ecc953bSthorpej { 19295ecc953bSthorpej const char *cp; 1930c7295a4cSchristos int c; 1931c7295a4cSchristos size_t l; 19325ecc953bSthorpej 19335ecc953bSthorpej l = nlen; 19345ecc953bSthorpej if (l < 2 || l >= bsize || isdigit((unsigned char)*name)) 19355ecc953bSthorpej return (1); 19365ecc953bSthorpej c = (u_char)name[--l]; 19375ecc953bSthorpej if (!isdigit(c)) { 19385ecc953bSthorpej if (c == '*') 19395ecc953bSthorpej *aunit = STAR; 19405ecc953bSthorpej else if (c == '?') 19415ecc953bSthorpej *aunit = WILD; 19425ecc953bSthorpej else 19435ecc953bSthorpej return (1); 19445ecc953bSthorpej } else { 19455ecc953bSthorpej cp = &name[l]; 19465ecc953bSthorpej while (isdigit((unsigned char)cp[-1])) 19475ecc953bSthorpej l--, cp--; 19485ecc953bSthorpej *aunit = atoi(cp); 19495ecc953bSthorpej } 19505ecc953bSthorpej memmove(base, name, l); 19515ecc953bSthorpej base[l] = 0; 19525ecc953bSthorpej return (0); 19535ecc953bSthorpej } 19545ecc953bSthorpej 19555ecc953bSthorpej void 19568d928a75Suebayasi addattr(const char *name) 19578d928a75Suebayasi { 19588d928a75Suebayasi struct attr *a; 19598d928a75Suebayasi 19608d928a75Suebayasi a = refattr(name); 19618d928a75Suebayasi selectattr(a); 19628d928a75Suebayasi } 19638d928a75Suebayasi 19648d928a75Suebayasi void 19658d928a75Suebayasi delattr(const char *name) 19668d928a75Suebayasi { 19678d928a75Suebayasi struct attr *a; 19688d928a75Suebayasi 19698d928a75Suebayasi a = refattr(name); 19708d928a75Suebayasi deselectattr(a); 19718d928a75Suebayasi } 19728d928a75Suebayasi 19738d928a75Suebayasi void 19745ecc953bSthorpej selectattr(struct attr *a) 19755ecc953bSthorpej { 19763a03bee6Suebayasi struct attrlist *al; 19773a03bee6Suebayasi struct attr *dep; 19785ecc953bSthorpej 19798d928a75Suebayasi CFGDBG(5, "selecting attr `%s'", a->a_name); 19803a03bee6Suebayasi for (al = a->a_deps; al != NULL; al = al->al_next) { 19813a03bee6Suebayasi dep = al->al_this; 19823a03bee6Suebayasi selectattr(dep); 19833a03bee6Suebayasi } 1984c7295a4cSchristos (void)ht_insert(selecttab, a->a_name, __UNCONST(a->a_name)); 1985b599bf99Suebayasi CFGDBG(3, "attr selected `%s'", a->a_name); 19865ecc953bSthorpej } 19875ecc953bSthorpej 19886d1bba4aSuebayasi static int 19898d928a75Suebayasi deselectattrcb2(const char *name1, const char *name2, void *v, void *arg) 19908d928a75Suebayasi { 19918d928a75Suebayasi const char *name = arg; 19928d928a75Suebayasi 19938d928a75Suebayasi if (strcmp(name, name2) == 0) 19948d928a75Suebayasi delattr(name1); 19958d928a75Suebayasi return 0; 19968d928a75Suebayasi } 19978d928a75Suebayasi 19988d928a75Suebayasi void 19998d928a75Suebayasi deselectattr(struct attr *a) 20008d928a75Suebayasi { 20018d928a75Suebayasi 20028d928a75Suebayasi CFGDBG(5, "deselecting attr `%s'", a->a_name); 20038d928a75Suebayasi ht_enumerate2(attrdeptab, deselectattrcb2, __UNCONST(a->a_name)); 20048d928a75Suebayasi (void)ht_remove(selecttab, a->a_name); 20058d928a75Suebayasi CFGDBG(3, "attr deselected `%s'", a->a_name); 20068d928a75Suebayasi } 20078d928a75Suebayasi 20088d928a75Suebayasi static int 20096d1bba4aSuebayasi dumpattrdepcb2(const char *name1, const char *name2, void *v, void *arg) 20106d1bba4aSuebayasi { 20116d1bba4aSuebayasi 20126d1bba4aSuebayasi CFGDBG(3, "attr `%s' depends on attr `%s'", name1, name2); 20136d1bba4aSuebayasi return 0; 20146d1bba4aSuebayasi } 20156d1bba4aSuebayasi 20166d1bba4aSuebayasi void 20176d1bba4aSuebayasi dependattrs(void) 20186d1bba4aSuebayasi { 20196d1bba4aSuebayasi 20206d1bba4aSuebayasi ht_enumerate2(attrdeptab, dumpattrdepcb2, NULL); 20216d1bba4aSuebayasi } 20226d1bba4aSuebayasi 20235ecc953bSthorpej /* 20245ecc953bSthorpej * We have an instance of the base foo, so select it and all its 20255ecc953bSthorpej * attributes for "optional foo". 20265ecc953bSthorpej */ 20275ecc953bSthorpej static void 20285ecc953bSthorpej selectbase(struct devbase *d, struct deva *da) 20295ecc953bSthorpej { 20305ecc953bSthorpej struct attr *a; 20314caf067bSdholland struct attrlist *al; 20325ecc953bSthorpej 2033c7295a4cSchristos (void)ht_insert(selecttab, d->d_name, __UNCONST(d->d_name)); 2034b599bf99Suebayasi CFGDBG(3, "devbase selected `%s'", d->d_name); 20356d1bba4aSuebayasi CFGDBG(5, "selecting dependencies of devbase `%s'", d->d_name); 20364caf067bSdholland for (al = d->d_attrs; al != NULL; al = al->al_next) { 20374caf067bSdholland a = al->al_this; 20385ecc953bSthorpej expandattr(a, selectattr); 20395ecc953bSthorpej } 2040da706167Suebayasi 2041da706167Suebayasi struct attr *devattr; 2042da706167Suebayasi devattr = refattr(d->d_name); 2043da706167Suebayasi expandattr(devattr, selectattr); 2044da706167Suebayasi 20455ecc953bSthorpej if (da != NULL) { 2046c7295a4cSchristos (void)ht_insert(selecttab, da->d_name, __UNCONST(da->d_name)); 2047b599bf99Suebayasi CFGDBG(3, "devattr selected `%s'", da->d_name); 20484caf067bSdholland for (al = da->d_attrs; al != NULL; al = al->al_next) { 20494caf067bSdholland a = al->al_this; 20505ecc953bSthorpej expandattr(a, selectattr); 20515ecc953bSthorpej } 20525ecc953bSthorpej } 2053c4bac1d0Suebayasi 2054c4bac1d0Suebayasi fixdev(d); 20555ecc953bSthorpej } 20565ecc953bSthorpej 20575ecc953bSthorpej /* 20585ecc953bSthorpej * Is the given pointer on the given list of pointers? 20595ecc953bSthorpej */ 206059c94545Scube int 20615ecc953bSthorpej onlist(struct nvlist *nv, void *ptr) 20625ecc953bSthorpej { 20635ecc953bSthorpej for (; nv != NULL; nv = nv->nv_next) 20645ecc953bSthorpej if (nv->nv_ptr == ptr) 20655ecc953bSthorpej return (1); 20665ecc953bSthorpej return (0); 20675ecc953bSthorpej } 20685ecc953bSthorpej 20695ecc953bSthorpej static char * 20705ecc953bSthorpej extend(char *p, const char *name) 20715ecc953bSthorpej { 2072c7295a4cSchristos size_t l; 20735ecc953bSthorpej 20745ecc953bSthorpej l = strlen(name); 20755ecc953bSthorpej memmove(p, name, l); 20765ecc953bSthorpej p += l; 20775ecc953bSthorpej *p++ = ','; 20785ecc953bSthorpej *p++ = ' '; 20795ecc953bSthorpej return (p); 20805ecc953bSthorpej } 20815ecc953bSthorpej 20825ecc953bSthorpej /* 20835ecc953bSthorpej * Check that we got all required locators, and default any that are 20845ecc953bSthorpej * given as "?" and have defaults. Return 0 on success. 20855ecc953bSthorpej */ 20865ecc953bSthorpej static const char ** 208716a8771bSdholland fixloc(const char *name, struct attr *attr, struct loclist *got) 20885ecc953bSthorpej { 208916a8771bSdholland struct loclist *m, *n; 20905ecc953bSthorpej int ord; 20915ecc953bSthorpej const char **lp; 20925ecc953bSthorpej int nmissing, nextra, nnodefault; 20935ecc953bSthorpej char *mp, *ep, *ndp; 20945ecc953bSthorpej char missing[1000], extra[1000], nodefault[1000]; 20955ecc953bSthorpej static const char *nullvec[1]; 20965ecc953bSthorpej 20975ecc953bSthorpej /* 20985ecc953bSthorpej * Look for all required locators, and number the given ones 20995ecc953bSthorpej * according to the required order. While we are numbering, 21005ecc953bSthorpej * set default values for defaulted locators. 21015ecc953bSthorpej */ 21025ecc953bSthorpej if (attr->a_loclen == 0) /* e.g., "at root" */ 21035ecc953bSthorpej lp = nullvec; 21045ecc953bSthorpej else 21059a7f4bbaSchristos lp = emalloc((size_t)(attr->a_loclen + 1) * sizeof(const char *)); 210616a8771bSdholland for (n = got; n != NULL; n = n->ll_next) 210716a8771bSdholland n->ll_num = -1; 21085ecc953bSthorpej nmissing = 0; 21095ecc953bSthorpej mp = missing; 21105ecc953bSthorpej /* yes, this is O(mn), but m and n should be small */ 211116a8771bSdholland for (ord = 0, m = attr->a_locs; m != NULL; m = m->ll_next, ord++) { 211216a8771bSdholland for (n = got; n != NULL; n = n->ll_next) { 211316a8771bSdholland if (n->ll_name == m->ll_name) { 211416a8771bSdholland n->ll_num = ord; 21155ecc953bSthorpej break; 21165ecc953bSthorpej } 21175ecc953bSthorpej } 211816a8771bSdholland if (n == NULL && m->ll_num == 0) { 21195ecc953bSthorpej nmissing++; 212016a8771bSdholland mp = extend(mp, m->ll_name); 21215ecc953bSthorpej } 212216a8771bSdholland lp[ord] = m->ll_string; 21235ecc953bSthorpej } 21245ecc953bSthorpej if (ord != attr->a_loclen) 21255ecc953bSthorpej panic("fixloc"); 21265ecc953bSthorpej lp[ord] = NULL; 21275ecc953bSthorpej nextra = 0; 21285ecc953bSthorpej ep = extra; 21295ecc953bSthorpej nnodefault = 0; 21305ecc953bSthorpej ndp = nodefault; 213116a8771bSdholland for (n = got; n != NULL; n = n->ll_next) { 213216a8771bSdholland if (n->ll_num >= 0) { 213316a8771bSdholland if (n->ll_string != NULL) 213416a8771bSdholland lp[n->ll_num] = n->ll_string; 213516a8771bSdholland else if (lp[n->ll_num] == NULL) { 21365ecc953bSthorpej nnodefault++; 213716a8771bSdholland ndp = extend(ndp, n->ll_name); 21385ecc953bSthorpej } 21395ecc953bSthorpej } else { 21405ecc953bSthorpej nextra++; 214116a8771bSdholland ep = extend(ep, n->ll_name); 21425ecc953bSthorpej } 21435ecc953bSthorpej } 21445ecc953bSthorpej if (nextra) { 21455ecc953bSthorpej ep[-2] = 0; /* kill ", " */ 2146c7295a4cSchristos cfgerror("%s: extraneous locator%s: %s", 21475ecc953bSthorpej name, nextra > 1 ? "s" : "", extra); 21485ecc953bSthorpej } 21495ecc953bSthorpej if (nmissing) { 21505ecc953bSthorpej mp[-2] = 0; 2151c7295a4cSchristos cfgerror("%s: must specify %s", name, missing); 21525ecc953bSthorpej } 21535ecc953bSthorpej if (nnodefault) { 21545ecc953bSthorpej ndp[-2] = 0; 2155c7295a4cSchristos cfgerror("%s: cannot wildcard %s", name, nodefault); 21565ecc953bSthorpej } 21575ecc953bSthorpej if (nmissing || nnodefault) { 21585ecc953bSthorpej free(lp); 21595ecc953bSthorpej lp = NULL; 21605ecc953bSthorpej } 21615ecc953bSthorpej return (lp); 21625ecc953bSthorpej } 2163437f8925Scube 2164437f8925Scube void 2165437f8925Scube setversion(int newver) 2166437f8925Scube { 2167437f8925Scube if (newver > CONFIG_VERSION) 2168c7295a4cSchristos cfgerror("your sources require a newer version of config(1) " 2169437f8925Scube "-- please rebuild it."); 2170437f8925Scube else if (newver < CONFIG_MINVERSION) 2171c7295a4cSchristos cfgerror("your sources are out of date -- please update."); 2172437f8925Scube else 2173437f8925Scube version = newver; 2174437f8925Scube } 2175