1*c4bac1d0Suebayasi /* $NetBSD: sem.c,v 1.58 2014/10/11 09:06:29 uebayasi 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 475ecc953bSthorpej #include <sys/param.h> 485ecc953bSthorpej #include <ctype.h> 495ecc953bSthorpej #include <stdio.h> 505ecc953bSthorpej #include <stdlib.h> 515ecc953bSthorpej #include <string.h> 52d0fb8901Schristos #include <util.h> 535ecc953bSthorpej #include "defs.h" 545ecc953bSthorpej #include "sem.h" 555ecc953bSthorpej 565ecc953bSthorpej /* 575ecc953bSthorpej * config semantics. 585ecc953bSthorpej */ 595ecc953bSthorpej 605ecc953bSthorpej #define NAMESIZE 100 /* local name buffers */ 615ecc953bSthorpej 625ecc953bSthorpej const char *s_ifnet; /* magic attribute */ 635ecc953bSthorpej const char *s_qmark; 645ecc953bSthorpej const char *s_none; 655ecc953bSthorpej 665ecc953bSthorpej static struct hashtab *cfhashtab; /* for config lookup */ 675ecc953bSthorpej struct hashtab *devitab; /* etc */ 687c7d91e6Suebayasi struct attr allattr; 695ecc953bSthorpej 705ecc953bSthorpej static struct attr errattr; 715ecc953bSthorpej static struct devbase errdev; 725ecc953bSthorpej static struct deva errdeva; 735ecc953bSthorpej 744caf067bSdholland static int has_errobj(struct attrlist *, struct attr *); 755ecc953bSthorpej static struct nvlist *addtoattr(struct nvlist *, struct devbase *); 765ecc953bSthorpej static int resolve(struct nvlist **, const char *, const char *, 775ecc953bSthorpej struct nvlist *, int); 785ecc953bSthorpej static struct pspec *getpspec(struct attr *, struct devbase *, int); 795ecc953bSthorpej static struct devi *newdevi(const char *, int, struct devbase *d); 805ecc953bSthorpej static struct devi *getdevi(const char *); 81c130d400Scube static void remove_devi(struct devi *); 825ecc953bSthorpej static const char *concat(const char *, int); 835ecc953bSthorpej static char *extend(char *, const char *); 845ecc953bSthorpej static int split(const char *, size_t, char *, size_t, int *); 855ecc953bSthorpej static void selectbase(struct devbase *, struct deva *); 8616a8771bSdholland static const char **fixloc(const char *, struct attr *, struct loclist *); 87d767912bSdrochner static const char *makedevstr(devmajor_t, devminor_t); 88d767912bSdrochner static const char *major2name(devmajor_t); 89d767912bSdrochner static devmajor_t dev2major(struct devbase *); 905ecc953bSthorpej 915ecc953bSthorpej extern const char *yyfile; 927aa6070dScube extern int vflag; 935ecc953bSthorpej 945ecc953bSthorpej void 955ecc953bSthorpej initsem(void) 965ecc953bSthorpej { 975ecc953bSthorpej 985ecc953bSthorpej attrtab = ht_new(); 997c7d91e6Suebayasi 1007c7d91e6Suebayasi allattr.a_name = "netbsd"; 1017c7d91e6Suebayasi TAILQ_INIT(&allattr.a_files); 1027c7d91e6Suebayasi (void)ht_insert(attrtab, allattr.a_name, &allattr); 103cd06fea3Suebayasi selectattr(&allattr); 1047c7d91e6Suebayasi 1055ecc953bSthorpej errattr.a_name = "<internal>"; 1065ecc953bSthorpej 1075ecc953bSthorpej TAILQ_INIT(&allbases); 1085ecc953bSthorpej 1095ecc953bSthorpej TAILQ_INIT(&alldevas); 1105ecc953bSthorpej 1115ecc953bSthorpej TAILQ_INIT(&allpspecs); 1125ecc953bSthorpej 1135ecc953bSthorpej cfhashtab = ht_new(); 1145ecc953bSthorpej TAILQ_INIT(&allcf); 1155ecc953bSthorpej 1165ecc953bSthorpej TAILQ_INIT(&alldevi); 1175ecc953bSthorpej errdev.d_name = "<internal>"; 1185ecc953bSthorpej 1195ecc953bSthorpej TAILQ_INIT(&allpseudo); 1205ecc953bSthorpej 1215ecc953bSthorpej TAILQ_INIT(&alldevms); 1225ecc953bSthorpej 1235ecc953bSthorpej s_ifnet = intern("ifnet"); 1245ecc953bSthorpej s_qmark = intern("?"); 1255ecc953bSthorpej s_none = intern("none"); 1265ecc953bSthorpej } 1275ecc953bSthorpej 1285ecc953bSthorpej /* Name of include file just ended (set in scan.l) */ 1295ecc953bSthorpej extern const char *lastfile; 1305ecc953bSthorpej 131a87832feSuebayasi static struct attr * 132da706167Suebayasi finddep(struct attr *a, const char *name) 133da706167Suebayasi { 134da706167Suebayasi struct attrlist *al; 135da706167Suebayasi 136da706167Suebayasi for (al = a->a_deps; al != NULL; al = al->al_next) { 137da706167Suebayasi struct attr *this = al->al_this; 138da706167Suebayasi if (strcmp(this->a_name, name) == 0) 139da706167Suebayasi return this; 140da706167Suebayasi } 141da706167Suebayasi return NULL; 142da706167Suebayasi } 143da706167Suebayasi 144da706167Suebayasi static void 145da706167Suebayasi mergedeps(struct devbase *dev, const char *name) 146da706167Suebayasi { 147da706167Suebayasi struct attr *a, *newa; 148da706167Suebayasi 149*c4bac1d0Suebayasi CFGDBG(4, "merging attr `%s' to devbase `%s'", name, dev->d_name); 150da706167Suebayasi a = refattr(dev->d_name); 151da706167Suebayasi if (finddep(a, name) == NULL) { 152da706167Suebayasi newa = refattr(name); 153da706167Suebayasi a->a_deps = attrlist_cons(a->a_deps, newa); 154da706167Suebayasi CFGDBG(3, "attr `%s' merged to attr `%s'", newa->a_name, 155da706167Suebayasi a->a_name); 156da706167Suebayasi } 157da706167Suebayasi } 158da706167Suebayasi 159da706167Suebayasi static void 160da706167Suebayasi fixdev(struct devbase *dev) 161da706167Suebayasi { 162da706167Suebayasi struct attrlist *al; 163da706167Suebayasi struct attr *devattr, *a; 164da706167Suebayasi 165da706167Suebayasi devattr = refattr(dev->d_name); 166da706167Suebayasi if (devattr->a_devclass) 167a87832feSuebayasi panic("%s: dev %s is devclass!", __func__, devattr->a_name); 168da706167Suebayasi 169*c4bac1d0Suebayasi CFGDBG(4, "fixing devbase `%s'", dev->d_name); 170da706167Suebayasi for (al = dev->d_attrs; al != NULL; al = al->al_next) { 171da706167Suebayasi a = al->al_this; 172da706167Suebayasi if (a->a_iattr) { 173da706167Suebayasi a->a_refs = addtoattr(a->a_refs, dev); 174*c4bac1d0Suebayasi CFGDBG(3, "device `%s' has iattr `%s'", dev->d_name, 175*c4bac1d0Suebayasi a->a_name); 176da706167Suebayasi } else if (a->a_devclass != NULL) { 177da706167Suebayasi if (dev->d_classattr != NULL) { 178da706167Suebayasi cfgwarn("device `%s' has multiple classes " 179da706167Suebayasi "(`%s' and `%s')", 180da706167Suebayasi dev->d_name, dev->d_classattr->a_name, 181da706167Suebayasi a->a_name); 182da706167Suebayasi } 183da706167Suebayasi dev->d_classattr = a; 184*c4bac1d0Suebayasi CFGDBG(3, "device `%s' is devclass `%s'", dev->d_name, 185*c4bac1d0Suebayasi a->a_name); 186da706167Suebayasi } else { 187da706167Suebayasi if (strcmp(dev->d_name, a->a_name) != 0) { 188da706167Suebayasi mergedeps(dev, a->a_name); 189da706167Suebayasi } 190da706167Suebayasi } 191da706167Suebayasi } 192da706167Suebayasi } 193da706167Suebayasi 1945ecc953bSthorpej void 1955ecc953bSthorpej enddefs(void) 1965ecc953bSthorpej { 1975ecc953bSthorpej struct devbase *dev; 1985ecc953bSthorpej 199*c4bac1d0Suebayasi yyfile = "enddefs"; 200*c4bac1d0Suebayasi 2015ecc953bSthorpej TAILQ_FOREACH(dev, &allbases, d_next) { 2025ecc953bSthorpej if (!dev->d_isdef) { 2035ecc953bSthorpej (void)fprintf(stderr, 2045ecc953bSthorpej "%s: device `%s' used but not defined\n", 2055ecc953bSthorpej lastfile, dev->d_name); 2065ecc953bSthorpej errors++; 2075ecc953bSthorpej continue; 2085ecc953bSthorpej } 2095ecc953bSthorpej } 2105ecc953bSthorpej if (errors) { 2115ecc953bSthorpej (void)fprintf(stderr, "*** Stop.\n"); 2125ecc953bSthorpej exit(1); 2135ecc953bSthorpej } 2145ecc953bSthorpej } 2155ecc953bSthorpej 2165ecc953bSthorpej void 2175ecc953bSthorpej setdefmaxusers(int min, int def, int max) 2185ecc953bSthorpej { 2195ecc953bSthorpej 2205ecc953bSthorpej if (min < 1 || min > def || def > max) 221c7295a4cSchristos cfgerror("maxusers must have 1 <= min (%d) <= default (%d) " 222c7295a4cSchristos "<= max (%d)", min, def, max); 2235ecc953bSthorpej else { 2245ecc953bSthorpej minmaxusers = min; 2255ecc953bSthorpej defmaxusers = def; 2265ecc953bSthorpej maxmaxusers = max; 2275ecc953bSthorpej } 2285ecc953bSthorpej } 2295ecc953bSthorpej 2305ecc953bSthorpej void 2315ecc953bSthorpej setmaxusers(int n) 2325ecc953bSthorpej { 2335ecc953bSthorpej 234895e5687Scube if (maxusers == n) { 235c7295a4cSchristos cfgerror("duplicate maxusers parameter"); 2365ecc953bSthorpej return; 2375ecc953bSthorpej } 238895e5687Scube if (vflag && maxusers != 0) 239c7295a4cSchristos cfgwarn("warning: maxusers already defined"); 2405ecc953bSthorpej maxusers = n; 2415ecc953bSthorpej if (n < minmaxusers) { 242c7295a4cSchristos cfgerror("warning: minimum of %d maxusers assumed", 243c7295a4cSchristos minmaxusers); 2445ecc953bSthorpej errors--; /* take it away */ 2455ecc953bSthorpej maxusers = minmaxusers; 2465ecc953bSthorpej } else if (n > maxmaxusers) { 247c7295a4cSchristos cfgerror("warning: maxusers (%d) > %d", n, maxmaxusers); 2485ecc953bSthorpej errors--; 2495ecc953bSthorpej } 2505ecc953bSthorpej } 2515ecc953bSthorpej 2525ecc953bSthorpej void 2535ecc953bSthorpej setident(const char *i) 2545ecc953bSthorpej { 2555ecc953bSthorpej 2564a7be1f9Smrg if (i) 2575ecc953bSthorpej ident = intern(i); 2584a7be1f9Smrg else 2594a7be1f9Smrg ident = NULL; 2605ecc953bSthorpej } 2615ecc953bSthorpej 2625ecc953bSthorpej /* 2635ecc953bSthorpej * Define an attribute, optionally with an interface (a locator list) 2645ecc953bSthorpej * and a set of attribute-dependencies. 2655ecc953bSthorpej * 2665ecc953bSthorpej * Attribute dependencies MAY NOT be interface attributes. 2675ecc953bSthorpej * 2685ecc953bSthorpej * Since an empty locator list is logically different from "no interface", 2695ecc953bSthorpej * all locator lists include a dummy head node, which we discard here. 2705ecc953bSthorpej */ 2715ecc953bSthorpej int 272bb4307a6Suebayasi defattr0(const char *name, struct loclist *locs, struct attrlist *deps, 273bb4307a6Suebayasi int devclass) 274bb4307a6Suebayasi { 275bb4307a6Suebayasi 276bb4307a6Suebayasi if (locs != NULL) 277bb4307a6Suebayasi return defiattr(name, locs, deps, devclass); 278bb4307a6Suebayasi else if (devclass) 279bb4307a6Suebayasi return defdevclass(name, locs, deps, devclass); 280bb4307a6Suebayasi else 281bb4307a6Suebayasi return defattr(name, locs, deps, devclass); 282bb4307a6Suebayasi } 283bb4307a6Suebayasi 284bb4307a6Suebayasi int 28516a8771bSdholland defattr(const char *name, struct loclist *locs, struct attrlist *deps, 2865ecc953bSthorpej int devclass) 2875ecc953bSthorpej { 2885ecc953bSthorpej struct attr *a, *dep; 2894caf067bSdholland struct attrlist *al; 2905ecc953bSthorpej 2915ecc953bSthorpej /* 2925ecc953bSthorpej * If this attribute depends on any others, make sure none of 2935ecc953bSthorpej * the dependencies are interface attributes. 2945ecc953bSthorpej */ 2954caf067bSdholland for (al = deps; al != NULL; al = al->al_next) { 2964caf067bSdholland dep = al->al_this; 2975ecc953bSthorpej if (dep->a_iattr) { 298c7295a4cSchristos cfgerror("`%s' dependency `%s' is an interface " 299c7295a4cSchristos "attribute", name, dep->a_name); 3005ecc953bSthorpej return (1); 3015ecc953bSthorpej } 3025ecc953bSthorpej } 3035ecc953bSthorpej 304bb52c144Suebayasi if (getrefattr(name, &a)) { 305c7295a4cSchristos cfgerror("attribute `%s' already defined", name); 30616a8771bSdholland loclist_destroy(locs); 3075ecc953bSthorpej return (1); 3085ecc953bSthorpej } 309bb52c144Suebayasi if (a == NULL) 310bb52c144Suebayasi a = mkattr(name); 3115ecc953bSthorpej 312a949e288Suebayasi a->a_deps = deps; 313bb4307a6Suebayasi expandattr(a, NULL); 3142f2f3382Suebayasi CFGDBG(3, "attr `%s' defined", a->a_name); 315bb4307a6Suebayasi 316bb4307a6Suebayasi return (0); 317bb4307a6Suebayasi } 318a949e288Suebayasi 3192f2f3382Suebayasi struct attr * 3202f2f3382Suebayasi mkattr(const char *name) 3212f2f3382Suebayasi { 3222f2f3382Suebayasi struct attr *a; 3232f2f3382Suebayasi 3242f2f3382Suebayasi a = ecalloc(1, sizeof *a); 3252f2f3382Suebayasi if (ht_insert(attrtab, name, a)) { 3262f2f3382Suebayasi free(a); 3272f2f3382Suebayasi return NULL; 3282f2f3382Suebayasi } 3292f2f3382Suebayasi a->a_name = name; 3302f2f3382Suebayasi TAILQ_INIT(&a->a_files); 3312f2f3382Suebayasi CFGDBG(3, "attr `%s' allocated", name); 3322f2f3382Suebayasi 3332f2f3382Suebayasi return a; 3342f2f3382Suebayasi } 3352f2f3382Suebayasi 336a949e288Suebayasi /* "interface attribute" initialization */ 337bb4307a6Suebayasi int 338bb4307a6Suebayasi defiattr(const char *name, struct loclist *locs, struct attrlist *deps, 339bb4307a6Suebayasi int devclass) 340bb4307a6Suebayasi { 341bb4307a6Suebayasi struct attr *a; 342bb4307a6Suebayasi int len; 343bb4307a6Suebayasi struct loclist *ll; 344bb4307a6Suebayasi 345bb4307a6Suebayasi if (devclass) 346bb4307a6Suebayasi panic("defattr(%s): locators and devclass", name); 347bb4307a6Suebayasi 348bb4307a6Suebayasi if (defattr(name, locs, deps, devclass) != 0) 349bb4307a6Suebayasi return (1); 350bb4307a6Suebayasi 351bb4307a6Suebayasi a = getattr(name); 3525ecc953bSthorpej a->a_iattr = 1; 35316a8771bSdholland /* unwrap */ 35416a8771bSdholland a->a_locs = locs->ll_next; 35516a8771bSdholland locs->ll_next = NULL; 35616a8771bSdholland loclist_destroy(locs); 357a949e288Suebayasi len = 0; 358a949e288Suebayasi for (ll = a->a_locs; ll != NULL; ll = ll->ll_next) 359a949e288Suebayasi len++; 360a949e288Suebayasi a->a_loclen = len; 361bb4307a6Suebayasi if (deps) 362bb4307a6Suebayasi CFGDBG(2, "attr `%s' iface with deps", a->a_name); 363bb4307a6Suebayasi return (0); 3645ecc953bSthorpej } 365a949e288Suebayasi 366a949e288Suebayasi /* "device class" initialization */ 367bb4307a6Suebayasi int 368bb4307a6Suebayasi defdevclass(const char *name, struct loclist *locs, struct attrlist *deps, 369bb4307a6Suebayasi int devclass) 370bb4307a6Suebayasi { 371bb4307a6Suebayasi struct attr *a; 372bbfbbde1Schristos char classenum[256], *cp; 3735ecc953bSthorpej int errored = 0; 3745ecc953bSthorpej 375bb4307a6Suebayasi if (deps) 376bb4307a6Suebayasi panic("defattr(%s): dependencies and devclass", name); 377bb4307a6Suebayasi 378bb4307a6Suebayasi if (defattr(name, locs, deps, devclass) != 0) 379bb4307a6Suebayasi return (1); 380bb4307a6Suebayasi 381bb4307a6Suebayasi a = getattr(name); 382bbfbbde1Schristos (void)snprintf(classenum, sizeof(classenum), "DV_%s", name); 3835ecc953bSthorpej for (cp = classenum + 3; *cp; cp++) { 3845ecc953bSthorpej if (!errored && 3855ecc953bSthorpej (!isalnum((unsigned char)*cp) || 3865ecc953bSthorpej (isalpha((unsigned char)*cp) && !islower((unsigned char)*cp)))) { 387c7295a4cSchristos cfgerror("device class names must be " 388c7295a4cSchristos "lower-case alphanumeric characters"); 3895ecc953bSthorpej errored = 1; 3905ecc953bSthorpej } 3915ecc953bSthorpej *cp = toupper((unsigned char)*cp); 3925ecc953bSthorpej } 3935ecc953bSthorpej a->a_devclass = intern(classenum); 3945ecc953bSthorpej 3955ecc953bSthorpej return (0); 3965ecc953bSthorpej } 3975ecc953bSthorpej 3985ecc953bSthorpej /* 3995ecc953bSthorpej * Return true if the given `error object' is embedded in the given 4005ecc953bSthorpej * pointer list. 4015ecc953bSthorpej */ 4025ecc953bSthorpej static int 4034caf067bSdholland has_errobj(struct attrlist *al, struct attr *obj) 4045ecc953bSthorpej { 4055ecc953bSthorpej 4064caf067bSdholland for (; al != NULL; al = al->al_next) 4074caf067bSdholland if (al->al_this == obj) 4085ecc953bSthorpej return (1); 4095ecc953bSthorpej return (0); 4105ecc953bSthorpej } 4115ecc953bSthorpej 4125ecc953bSthorpej /* 4135ecc953bSthorpej * Return true if the given attribute is embedded in the given 4145ecc953bSthorpej * pointer list. 4155ecc953bSthorpej */ 4165ecc953bSthorpej int 4174caf067bSdholland has_attr(struct attrlist *al, const char *attr) 4185ecc953bSthorpej { 4195ecc953bSthorpej struct attr *a; 4205ecc953bSthorpej 4215ecc953bSthorpej if ((a = getattr(attr)) == NULL) 4225ecc953bSthorpej return (0); 4235ecc953bSthorpej 4244caf067bSdholland for (; al != NULL; al = al->al_next) 4254caf067bSdholland if (al->al_this == a) 4265ecc953bSthorpej return (1); 4275ecc953bSthorpej return (0); 4285ecc953bSthorpej } 4295ecc953bSthorpej 4305ecc953bSthorpej /* 4315ecc953bSthorpej * Add a device base to a list in an attribute (actually, to any list). 4325ecc953bSthorpej * Note that this does not check for duplicates, and does reverse the 4335ecc953bSthorpej * list order, but no one cares anyway. 4345ecc953bSthorpej */ 4355ecc953bSthorpej static struct nvlist * 4365ecc953bSthorpej addtoattr(struct nvlist *l, struct devbase *dev) 4375ecc953bSthorpej { 4385ecc953bSthorpej struct nvlist *n; 4395ecc953bSthorpej 4405ecc953bSthorpej n = newnv(NULL, NULL, dev, 0, l); 4415ecc953bSthorpej return (n); 4425ecc953bSthorpej } 4435ecc953bSthorpej 4445ecc953bSthorpej /* 4455ecc953bSthorpej * Define a device. This may (or may not) also define an interface 4465ecc953bSthorpej * attribute and/or refer to existing attributes. 4475ecc953bSthorpej */ 4485ecc953bSthorpej void 44916a8771bSdholland defdev(struct devbase *dev, struct loclist *loclist, struct attrlist *attrs, 4505ecc953bSthorpej int ispseudo) 4515ecc953bSthorpej { 45216a8771bSdholland struct loclist *ll; 4534caf067bSdholland struct attrlist *al; 4545ecc953bSthorpej 4555ecc953bSthorpej if (dev == &errdev) 4565ecc953bSthorpej goto bad; 4575ecc953bSthorpej if (dev->d_isdef) { 458c7295a4cSchristos cfgerror("redefinition of `%s'", dev->d_name); 4595ecc953bSthorpej goto bad; 4605ecc953bSthorpej } 4615ecc953bSthorpej 4625ecc953bSthorpej dev->d_isdef = 1; 4635ecc953bSthorpej if (has_errobj(attrs, &errattr)) 4645ecc953bSthorpej goto bad; 4655ecc953bSthorpej 4665ecc953bSthorpej /* 4675ecc953bSthorpej * Handle implicit attribute definition from locator list. Do 4685ecc953bSthorpej * this before scanning the `at' list so that we can have, e.g.: 4695ecc953bSthorpej * device foo at other, foo { slot = -1 } 4705ecc953bSthorpej * (where you can plug in a foo-bus extender to a foo-bus). 4715ecc953bSthorpej */ 4725ecc953bSthorpej if (loclist != NULL) { 47316a8771bSdholland ll = loclist; 4745ecc953bSthorpej loclist = NULL; /* defattr disposes of them for us */ 475bb4307a6Suebayasi if (defiattr(dev->d_name, ll, NULL, 0)) 4765ecc953bSthorpej goto bad; 4774caf067bSdholland attrs = attrlist_cons(attrs, getattr(dev->d_name)); 4784caf067bSdholland /* This used to be stored but was never used */ 4794caf067bSdholland /* attrs->al_name = dev->d_name; */ 480c454f920Scube } 481c454f920Scube 482c130d400Scube /* 483c130d400Scube * Pseudo-devices can have children. Consider them as 484c130d400Scube * attaching at root. 485c130d400Scube */ 486c454f920Scube if (ispseudo) { 4874caf067bSdholland for (al = attrs; al != NULL; al = al->al_next) 4884caf067bSdholland if (al->al_this->a_iattr) 489c454f920Scube break; 4904caf067bSdholland if (al != NULL) { 491b66156c7Sdrochner if (ispseudo < 2) { 492b66156c7Sdrochner if (version >= 20080610) 493b66156c7Sdrochner cfgerror("interface attribute on " 494b66156c7Sdrochner "non-device pseudo `%s'", dev->d_name); 495b66156c7Sdrochner else { 496b66156c7Sdrochner ispseudo = 2; 497b66156c7Sdrochner } 498b66156c7Sdrochner } 499c130d400Scube ht_insert(devroottab, dev->d_name, dev); 5005ecc953bSthorpej } 501b66156c7Sdrochner } 5025ecc953bSthorpej 5035ecc953bSthorpej /* Committed! Set up fields. */ 5045ecc953bSthorpej dev->d_ispseudo = ispseudo; 5055ecc953bSthorpej dev->d_attrs = attrs; 5065ecc953bSthorpej dev->d_classattr = NULL; /* for now */ 507da706167Suebayasi CFGDBG(3, "dev `%s' defined", dev->d_name); 5085ecc953bSthorpej 5095ecc953bSthorpej /* 510a2dd9676Suebayasi * Implicit attribute definition for device. 511a2dd9676Suebayasi */ 512a2dd9676Suebayasi refattr(dev->d_name); 513a2dd9676Suebayasi 514a2dd9676Suebayasi /* 5155ecc953bSthorpej * For each interface attribute this device refers to, add this 5165ecc953bSthorpej * device to its reference list. This makes, e.g., finding all 5175ecc953bSthorpej * "scsi"s easier. 5185ecc953bSthorpej * 5195ecc953bSthorpej * While looking through the attributes, set up the device 5205ecc953bSthorpej * class if any are devclass attributes (and error out if the 5215ecc953bSthorpej * device has two classes). 5225ecc953bSthorpej */ 5234caf067bSdholland for (al = attrs; al != NULL; al = al->al_next) { 524da706167Suebayasi /* 525da706167Suebayasi * Implicit attribute definition for device dependencies. 526da706167Suebayasi */ 527da706167Suebayasi refattr(dev->d_name); 5285ecc953bSthorpej } 5295ecc953bSthorpej return; 5305ecc953bSthorpej bad: 53116a8771bSdholland loclist_destroy(loclist); 5324caf067bSdholland attrlist_destroyall(attrs); 5335ecc953bSthorpej } 5345ecc953bSthorpej 5355ecc953bSthorpej /* 5365ecc953bSthorpej * Look up a devbase. Also makes sure it is a reasonable name, 5375ecc953bSthorpej * i.e., does not end in a digit or contain special characters. 5385ecc953bSthorpej */ 5395ecc953bSthorpej struct devbase * 5405ecc953bSthorpej getdevbase(const char *name) 5415ecc953bSthorpej { 542c7295a4cSchristos const u_char *p; 5435ecc953bSthorpej struct devbase *dev; 5445ecc953bSthorpej 545c7295a4cSchristos p = (const u_char *)name; 5465ecc953bSthorpej if (!isalpha(*p)) 5475ecc953bSthorpej goto badname; 5485ecc953bSthorpej while (*++p) { 5495ecc953bSthorpej if (!isalnum(*p) && *p != '_') 5505ecc953bSthorpej goto badname; 5515ecc953bSthorpej } 5525ecc953bSthorpej if (isdigit(*--p)) { 5535ecc953bSthorpej badname: 554c7295a4cSchristos cfgerror("bad device base name `%s'", name); 5555ecc953bSthorpej return (&errdev); 5565ecc953bSthorpej } 5575ecc953bSthorpej dev = ht_lookup(devbasetab, name); 5585ecc953bSthorpej if (dev == NULL) { 5595ecc953bSthorpej dev = ecalloc(1, sizeof *dev); 5605ecc953bSthorpej dev->d_name = name; 5615ecc953bSthorpej dev->d_isdef = 0; 562d767912bSdrochner dev->d_major = NODEVMAJOR; 5635ecc953bSthorpej dev->d_attrs = NULL; 5645ecc953bSthorpej dev->d_ihead = NULL; 5655ecc953bSthorpej dev->d_ipp = &dev->d_ihead; 5665ecc953bSthorpej dev->d_ahead = NULL; 5675ecc953bSthorpej dev->d_app = &dev->d_ahead; 5685ecc953bSthorpej dev->d_umax = 0; 5695ecc953bSthorpej TAILQ_INSERT_TAIL(&allbases, dev, d_next); 5705ecc953bSthorpej if (ht_insert(devbasetab, name, dev)) 5715ecc953bSthorpej panic("getdevbase(%s)", name); 572da706167Suebayasi CFGDBG(3, "devbase defined `%s'", dev->d_name); 5735ecc953bSthorpej } 5745ecc953bSthorpej return (dev); 5755ecc953bSthorpej } 5765ecc953bSthorpej 5775ecc953bSthorpej /* 5785ecc953bSthorpej * Define some of a device's allowable parent attachments. 5795ecc953bSthorpej * There may be a list of (plain) attributes. 5805ecc953bSthorpej */ 5815ecc953bSthorpej void 5825ecc953bSthorpej defdevattach(struct deva *deva, struct devbase *dev, struct nvlist *atlist, 5834caf067bSdholland struct attrlist *attrs) 5845ecc953bSthorpej { 5855ecc953bSthorpej struct nvlist *nv; 5864caf067bSdholland struct attrlist *al; 5875ecc953bSthorpej struct attr *a; 5885ecc953bSthorpej struct deva *da; 5895ecc953bSthorpej 5905ecc953bSthorpej if (dev == &errdev) 5915ecc953bSthorpej goto bad; 5925ecc953bSthorpej if (deva == NULL) 5935ecc953bSthorpej deva = getdevattach(dev->d_name); 5945ecc953bSthorpej if (deva == &errdeva) 5955ecc953bSthorpej goto bad; 5965ecc953bSthorpej if (!dev->d_isdef) { 597c7295a4cSchristos cfgerror("attaching undefined device `%s'", dev->d_name); 5985ecc953bSthorpej goto bad; 5995ecc953bSthorpej } 6005ecc953bSthorpej if (deva->d_isdef) { 601c7295a4cSchristos cfgerror("redefinition of `%s'", deva->d_name); 6025ecc953bSthorpej goto bad; 6035ecc953bSthorpej } 6045ecc953bSthorpej if (dev->d_ispseudo) { 605c7295a4cSchristos cfgerror("pseudo-devices can't attach"); 6065ecc953bSthorpej goto bad; 6075ecc953bSthorpej } 6085ecc953bSthorpej 6095ecc953bSthorpej deva->d_isdef = 1; 6105ecc953bSthorpej if (has_errobj(attrs, &errattr)) 6115ecc953bSthorpej goto bad; 6124caf067bSdholland for (al = attrs; al != NULL; al = al->al_next) { 6134caf067bSdholland a = al->al_this; 6145ecc953bSthorpej if (a == &errattr) 6155ecc953bSthorpej continue; /* already complained */ 6165ecc953bSthorpej if (a->a_iattr || a->a_devclass != NULL) 617c7295a4cSchristos cfgerror("`%s' is not a plain attribute", a->a_name); 6185ecc953bSthorpej } 6195ecc953bSthorpej 6205ecc953bSthorpej /* Committed! Set up fields. */ 6215ecc953bSthorpej deva->d_attrs = attrs; 6225ecc953bSthorpej deva->d_atlist = atlist; 6235ecc953bSthorpej deva->d_devbase = dev; 6242f2f3382Suebayasi CFGDBG(3, "deva `%s' defined", deva->d_name); 6252f2f3382Suebayasi 6262f2f3382Suebayasi /* 627a5a68b71Suebayasi * Implicit attribute definition for device attachment. 6282f2f3382Suebayasi */ 6292f2f3382Suebayasi refattr(deva->d_name); 6305ecc953bSthorpej 6315ecc953bSthorpej /* 6325ecc953bSthorpej * Turn the `at' list into interface attributes (map each 6335ecc953bSthorpej * nv_name to an attribute, or to NULL for root), and add 6345ecc953bSthorpej * this device to those attributes, so that children can 6355ecc953bSthorpej * be listed at this particular device if they are supported 6365ecc953bSthorpej * by that attribute. 6375ecc953bSthorpej */ 6385ecc953bSthorpej for (nv = atlist; nv != NULL; nv = nv->nv_next) { 6395ecc953bSthorpej if (nv->nv_name == NULL) 6405ecc953bSthorpej nv->nv_ptr = a = NULL; /* at root */ 6415ecc953bSthorpej else 6425ecc953bSthorpej nv->nv_ptr = a = getattr(nv->nv_name); 6435ecc953bSthorpej if (a == &errattr) 6445ecc953bSthorpej continue; /* already complained */ 6455ecc953bSthorpej 6465ecc953bSthorpej /* 6475ecc953bSthorpej * Make sure that an attachment spec doesn't 6485ecc953bSthorpej * already say how to attach to this attribute. 6495ecc953bSthorpej */ 6505ecc953bSthorpej for (da = dev->d_ahead; da != NULL; da = da->d_bsame) 6515ecc953bSthorpej if (onlist(da->d_atlist, a)) 652c7295a4cSchristos cfgerror("attach at `%s' already done by `%s'", 6535ecc953bSthorpej a ? a->a_name : "root", da->d_name); 6545ecc953bSthorpej 655c130d400Scube if (a == NULL) { 656c130d400Scube ht_insert(devroottab, dev->d_name, dev); 6575ecc953bSthorpej continue; /* at root; don't add */ 658c130d400Scube } 6595ecc953bSthorpej if (!a->a_iattr) 660c7295a4cSchristos cfgerror("%s cannot be at plain attribute `%s'", 6615ecc953bSthorpej dev->d_name, a->a_name); 6625ecc953bSthorpej else 6635ecc953bSthorpej a->a_devs = addtoattr(a->a_devs, dev); 6645ecc953bSthorpej } 6655ecc953bSthorpej 6665ecc953bSthorpej /* attach to parent */ 6675ecc953bSthorpej *dev->d_app = deva; 6685ecc953bSthorpej dev->d_app = &deva->d_bsame; 6695ecc953bSthorpej return; 6705ecc953bSthorpej bad: 6715ecc953bSthorpej nvfreel(atlist); 6724caf067bSdholland attrlist_destroyall(attrs); 6735ecc953bSthorpej } 6745ecc953bSthorpej 6755ecc953bSthorpej /* 6765ecc953bSthorpej * Look up a device attachment. Also makes sure it is a reasonable 6775ecc953bSthorpej * name, i.e., does not contain digits or special characters. 6785ecc953bSthorpej */ 6795ecc953bSthorpej struct deva * 6805ecc953bSthorpej getdevattach(const char *name) 6815ecc953bSthorpej { 682c7295a4cSchristos const u_char *p; 6835ecc953bSthorpej struct deva *deva; 6845ecc953bSthorpej 685c7295a4cSchristos p = (const u_char *)name; 6865ecc953bSthorpej if (!isalpha(*p)) 6875ecc953bSthorpej goto badname; 6885ecc953bSthorpej while (*++p) { 6895ecc953bSthorpej if (!isalnum(*p) && *p != '_') 6905ecc953bSthorpej goto badname; 6915ecc953bSthorpej } 6925ecc953bSthorpej if (isdigit(*--p)) { 6935ecc953bSthorpej badname: 694c7295a4cSchristos cfgerror("bad device attachment name `%s'", name); 6955ecc953bSthorpej return (&errdeva); 6965ecc953bSthorpej } 6975ecc953bSthorpej deva = ht_lookup(devatab, name); 6985ecc953bSthorpej if (deva == NULL) { 6995ecc953bSthorpej deva = ecalloc(1, sizeof *deva); 7005ecc953bSthorpej deva->d_name = name; 7015ecc953bSthorpej deva->d_bsame = NULL; 7025ecc953bSthorpej deva->d_isdef = 0; 7035ecc953bSthorpej deva->d_devbase = NULL; 7045ecc953bSthorpej deva->d_atlist = NULL; 7055ecc953bSthorpej deva->d_attrs = NULL; 7065ecc953bSthorpej deva->d_ihead = NULL; 7075ecc953bSthorpej deva->d_ipp = &deva->d_ihead; 7085ecc953bSthorpej TAILQ_INSERT_TAIL(&alldevas, deva, d_next); 7095ecc953bSthorpej if (ht_insert(devatab, name, deva)) 7105ecc953bSthorpej panic("getdeva(%s)", name); 7115ecc953bSthorpej } 7125ecc953bSthorpej return (deva); 7135ecc953bSthorpej } 7145ecc953bSthorpej 7155ecc953bSthorpej /* 7165ecc953bSthorpej * Look up an attribute. 7175ecc953bSthorpej */ 7185ecc953bSthorpej struct attr * 7195ecc953bSthorpej getattr(const char *name) 7205ecc953bSthorpej { 7215ecc953bSthorpej struct attr *a; 7225ecc953bSthorpej 7235ecc953bSthorpej if ((a = ht_lookup(attrtab, name)) == NULL) { 724c7295a4cSchristos cfgerror("undefined attribute `%s'", name); 7255ecc953bSthorpej a = &errattr; 7265ecc953bSthorpej } 7275ecc953bSthorpej return (a); 7285ecc953bSthorpej } 7295ecc953bSthorpej 7305ecc953bSthorpej /* 7312f2f3382Suebayasi * Implicit attribute definition. 7322f2f3382Suebayasi */ 73351deed3eSuebayasi struct attr * 7342f2f3382Suebayasi refattr(const char *name) 7352f2f3382Suebayasi { 73651deed3eSuebayasi struct attr *a; 7372f2f3382Suebayasi 73851deed3eSuebayasi if ((a = ht_lookup(attrtab, name)) == NULL) 73951deed3eSuebayasi a = mkattr(name); 74051deed3eSuebayasi return a; 7412f2f3382Suebayasi } 7422f2f3382Suebayasi 743bb52c144Suebayasi int 744bb52c144Suebayasi getrefattr(const char *name, struct attr **ra) 745bb52c144Suebayasi { 746bb52c144Suebayasi struct attr *a; 747bb52c144Suebayasi 748bb52c144Suebayasi a = ht_lookup(attrtab, name); 749bb52c144Suebayasi if (a == NULL) { 750bb52c144Suebayasi *ra = NULL; 751bb52c144Suebayasi return (0); 752bb52c144Suebayasi } 753bb52c144Suebayasi /* 754bb52c144Suebayasi * Check if the existing attr is only referenced, not really defined. 755bb52c144Suebayasi */ 756bb52c144Suebayasi if (a->a_deps == NULL && 757bb52c144Suebayasi a->a_iattr == 0 && 758bb52c144Suebayasi a->a_devclass == 0) { 759bb52c144Suebayasi *ra = a; 760bb52c144Suebayasi return (0); 761bb52c144Suebayasi } 762bb52c144Suebayasi return (1); 763bb52c144Suebayasi } 764bb52c144Suebayasi 7652f2f3382Suebayasi /* 7665ecc953bSthorpej * Recursively expand an attribute and its dependencies, checking for 7675ecc953bSthorpej * cycles, and invoking a callback for each attribute found. 7685ecc953bSthorpej */ 7695ecc953bSthorpej void 7705ecc953bSthorpej expandattr(struct attr *a, void (*callback)(struct attr *)) 7715ecc953bSthorpej { 7724caf067bSdholland struct attrlist *al; 7735ecc953bSthorpej struct attr *dep; 7745ecc953bSthorpej 7755ecc953bSthorpej if (a->a_expanding) { 776c7295a4cSchristos cfgerror("circular dependency on attribute `%s'", a->a_name); 7775ecc953bSthorpej return; 7785ecc953bSthorpej } 7795ecc953bSthorpej 7805ecc953bSthorpej a->a_expanding = 1; 7815ecc953bSthorpej 7825ecc953bSthorpej /* First expand all of this attribute's dependencies. */ 7834caf067bSdholland for (al = a->a_deps; al != NULL; al = al->al_next) { 7844caf067bSdholland dep = al->al_this; 7855ecc953bSthorpej expandattr(dep, callback); 7865ecc953bSthorpej } 7875ecc953bSthorpej 7885ecc953bSthorpej /* ...and now invoke the callback for ourself. */ 7895ecc953bSthorpej if (callback != NULL) 7905ecc953bSthorpej (*callback)(a); 7915ecc953bSthorpej 7925ecc953bSthorpej a->a_expanding = 0; 7935ecc953bSthorpej } 7945ecc953bSthorpej 7955ecc953bSthorpej /* 7965ecc953bSthorpej * Set the major device number for a device, so that it can be used 7975ecc953bSthorpej * as a root/dumps "on" device in a configuration. 7985ecc953bSthorpej */ 7995ecc953bSthorpej void 800d767912bSdrochner setmajor(struct devbase *d, devmajor_t n) 8015ecc953bSthorpej { 8025ecc953bSthorpej 803d767912bSdrochner if (d != &errdev && d->d_major != NODEVMAJOR) 804d767912bSdrochner cfgerror("device `%s' is already major %d", 805d767912bSdrochner d->d_name, d->d_major); 8065ecc953bSthorpej else 8075ecc953bSthorpej d->d_major = n; 8085ecc953bSthorpej } 8095ecc953bSthorpej 8105ecc953bSthorpej const char * 811d767912bSdrochner major2name(devmajor_t maj) 8125ecc953bSthorpej { 8135ecc953bSthorpej struct devbase *dev; 8145ecc953bSthorpej struct devm *dm; 8155ecc953bSthorpej 8165ecc953bSthorpej if (!do_devsw) { 8175ecc953bSthorpej TAILQ_FOREACH(dev, &allbases, d_next) { 8185ecc953bSthorpej if (dev->d_major == maj) 8195ecc953bSthorpej return (dev->d_name); 8205ecc953bSthorpej } 8215ecc953bSthorpej } else { 8225ecc953bSthorpej TAILQ_FOREACH(dm, &alldevms, dm_next) { 8235ecc953bSthorpej if (dm->dm_bmajor == maj) 8245ecc953bSthorpej return (dm->dm_name); 8255ecc953bSthorpej } 8265ecc953bSthorpej } 8275ecc953bSthorpej return (NULL); 8285ecc953bSthorpej } 8295ecc953bSthorpej 830d767912bSdrochner devmajor_t 8315ecc953bSthorpej dev2major(struct devbase *dev) 8325ecc953bSthorpej { 8335ecc953bSthorpej struct devm *dm; 8345ecc953bSthorpej 8355ecc953bSthorpej if (!do_devsw) 8365ecc953bSthorpej return (dev->d_major); 8375ecc953bSthorpej 8385ecc953bSthorpej TAILQ_FOREACH(dm, &alldevms, dm_next) { 8395ecc953bSthorpej if (strcmp(dm->dm_name, dev->d_name) == 0) 8405ecc953bSthorpej return (dm->dm_bmajor); 8415ecc953bSthorpej } 842d767912bSdrochner return (NODEVMAJOR); 8435ecc953bSthorpej } 8445ecc953bSthorpej 8455ecc953bSthorpej /* 8465ecc953bSthorpej * Make a string description of the device at maj/min. 8475ecc953bSthorpej */ 8485ecc953bSthorpej static const char * 849d767912bSdrochner makedevstr(devmajor_t maj, devminor_t min) 8505ecc953bSthorpej { 851c7295a4cSchristos const char *devicename; 8525ecc953bSthorpej char buf[32]; 8535ecc953bSthorpej 854c7295a4cSchristos devicename = major2name(maj); 855c7295a4cSchristos if (devicename == NULL) 856d767912bSdrochner (void)snprintf(buf, sizeof(buf), "<%d/%d>", maj, min); 8575ecc953bSthorpej else 858d767912bSdrochner (void)snprintf(buf, sizeof(buf), "%s%d%c", devicename, 859d767912bSdrochner min / maxpartitions, (min % maxpartitions) + 'a'); 8605ecc953bSthorpej 8615ecc953bSthorpej return (intern(buf)); 8625ecc953bSthorpej } 8635ecc953bSthorpej 8645ecc953bSthorpej /* 8655ecc953bSthorpej * Map things like "ra0b" => makedev(major("ra"), 0*maxpartitions + 'b'-'a'). 8665ecc953bSthorpej * Handle the case where the device number is given but there is no 8675ecc953bSthorpej * corresponding name, and map NULL to the default. 8685ecc953bSthorpej */ 8695ecc953bSthorpej static int 8705ecc953bSthorpej resolve(struct nvlist **nvp, const char *name, const char *what, 8715ecc953bSthorpej struct nvlist *dflt, int part) 8725ecc953bSthorpej { 8735ecc953bSthorpej struct nvlist *nv; 8745ecc953bSthorpej struct devbase *dev; 8755ecc953bSthorpej const char *cp; 876d767912bSdrochner devmajor_t maj; 877d767912bSdrochner devminor_t min; 8780001b928Schristos int i, l; 8795ecc953bSthorpej int unit; 8805ecc953bSthorpej char buf[NAMESIZE]; 8815ecc953bSthorpej 8825cc303e1Slukem if ((part -= 'a') >= maxpartitions || part < 0) 8835ecc953bSthorpej panic("resolve"); 8845ecc953bSthorpej if ((nv = *nvp) == NULL) { 8855ecc953bSthorpej dev_t d = NODEV; 8865ecc953bSthorpej /* 8875ecc953bSthorpej * Apply default. Easiest to do this by number. 8885ecc953bSthorpej * Make sure to retain NODEVness, if this is dflt's disposition. 8895ecc953bSthorpej */ 8905cc303e1Slukem if ((dev_t)dflt->nv_num != NODEV) { 8910001b928Schristos maj = major(dflt->nv_num); 8920001b928Schristos min = ((minor(dflt->nv_num) / maxpartitions) * 8935ecc953bSthorpej maxpartitions) + part; 8945ecc953bSthorpej d = makedev(maj, min); 8955ecc953bSthorpej cp = makedevstr(maj, min); 8965ecc953bSthorpej } else 8975ecc953bSthorpej cp = NULL; 8985ecc953bSthorpej *nvp = nv = newnv(NULL, cp, NULL, d, NULL); 8995ecc953bSthorpej } 9005cc303e1Slukem if ((dev_t)nv->nv_num != NODEV) { 9015ecc953bSthorpej /* 9025ecc953bSthorpej * By the numbers. Find the appropriate major number 9035ecc953bSthorpej * to make a name. 9045ecc953bSthorpej */ 9050001b928Schristos maj = major(nv->nv_num); 9060001b928Schristos min = minor(nv->nv_num); 9075ecc953bSthorpej nv->nv_str = makedevstr(maj, min); 9085ecc953bSthorpej return (0); 9095ecc953bSthorpej } 9105ecc953bSthorpej 9115ecc953bSthorpej if (nv->nv_str == NULL || nv->nv_str == s_qmark) 9125ecc953bSthorpej /* 9135ecc953bSthorpej * Wildcarded or unspecified; leave it as NODEV. 9145ecc953bSthorpej */ 9155ecc953bSthorpej return (0); 9165ecc953bSthorpej 9175ecc953bSthorpej /* 9185ecc953bSthorpej * The normal case: things like "ra2b". Check for partition 9195ecc953bSthorpej * suffix, remove it if there, and split into name ("ra") and 9205ecc953bSthorpej * unit (2). 9215ecc953bSthorpej */ 9225ecc953bSthorpej l = i = strlen(nv->nv_str); 9235ecc953bSthorpej cp = &nv->nv_str[l]; 9245ecc953bSthorpej if (l > 1 && *--cp >= 'a' && *cp < 'a' + maxpartitions && 9255ecc953bSthorpej isdigit((unsigned char)cp[-1])) { 9265ecc953bSthorpej l--; 9275ecc953bSthorpej part = *cp - 'a'; 9285ecc953bSthorpej } 9295ecc953bSthorpej cp = nv->nv_str; 9305ecc953bSthorpej if (split(cp, l, buf, sizeof buf, &unit)) { 931c7295a4cSchristos cfgerror("%s: invalid %s device name `%s'", name, what, cp); 9325ecc953bSthorpej return (1); 9335ecc953bSthorpej } 9345ecc953bSthorpej dev = ht_lookup(devbasetab, intern(buf)); 9355ecc953bSthorpej if (dev == NULL) { 936c7295a4cSchristos cfgerror("%s: device `%s' does not exist", name, buf); 9375ecc953bSthorpej return (1); 9385ecc953bSthorpej } 9395ecc953bSthorpej 9405ecc953bSthorpej /* 9415ecc953bSthorpej * Check for the magic network interface attribute, and 9425ecc953bSthorpej * don't bother making a device number. 9435ecc953bSthorpej */ 9445ecc953bSthorpej if (has_attr(dev->d_attrs, s_ifnet)) { 9450001b928Schristos nv->nv_num = NODEV; 9465ecc953bSthorpej nv->nv_ifunit = unit; /* XXX XXX XXX */ 9475ecc953bSthorpej } else { 9485ecc953bSthorpej maj = dev2major(dev); 9495cc303e1Slukem if (maj == NODEVMAJOR) { 950c7295a4cSchristos cfgerror("%s: can't make %s device from `%s'", 9515ecc953bSthorpej name, what, nv->nv_str); 9525ecc953bSthorpej return (1); 9535ecc953bSthorpej } 9540001b928Schristos nv->nv_num = makedev(maj, unit * maxpartitions + part); 9555ecc953bSthorpej } 9565ecc953bSthorpej 9575ecc953bSthorpej nv->nv_name = dev->d_name; 9585ecc953bSthorpej return (0); 9595ecc953bSthorpej } 9605ecc953bSthorpej 9615ecc953bSthorpej /* 9625ecc953bSthorpej * Add a completed configuration to the list. 9635ecc953bSthorpej */ 9645ecc953bSthorpej void 9655ecc953bSthorpej addconf(struct config *cf0) 9665ecc953bSthorpej { 9675ecc953bSthorpej struct config *cf; 9685ecc953bSthorpej const char *name; 9695ecc953bSthorpej 9705ecc953bSthorpej name = cf0->cf_name; 9715ecc953bSthorpej cf = ecalloc(1, sizeof *cf); 9725ecc953bSthorpej if (ht_insert(cfhashtab, name, cf)) { 973c7295a4cSchristos cfgerror("configuration `%s' already defined", name); 9745ecc953bSthorpej free(cf); 9755ecc953bSthorpej goto bad; 9765ecc953bSthorpej } 9775ecc953bSthorpej *cf = *cf0; 9785ecc953bSthorpej 9795ecc953bSthorpej /* 9805ecc953bSthorpej * Resolve the root device. 9815ecc953bSthorpej */ 982cd429362Serh if (cf->cf_root == NULL) { 983c7295a4cSchristos cfgerror("%s: no root device specified", name); 9845ecc953bSthorpej goto bad; 9855ecc953bSthorpej } 986cd429362Serh if (cf->cf_root && cf->cf_root->nv_str != s_qmark) { 987cd429362Serh struct nvlist *nv; 988cd429362Serh nv = cf->cf_root; 9895ecc953bSthorpej if (resolve(&cf->cf_root, name, "root", nv, 'a')) 9905ecc953bSthorpej goto bad; 9915ecc953bSthorpej } 9925ecc953bSthorpej 9935ecc953bSthorpej /* 9945ecc953bSthorpej * Resolve the dump device. 9955ecc953bSthorpej */ 9965ecc953bSthorpej if (cf->cf_dump == NULL || cf->cf_dump->nv_str == s_qmark) { 9975ecc953bSthorpej /* 9985ecc953bSthorpej * Wildcarded dump device is equivalent to unspecified. 9995ecc953bSthorpej */ 10005ecc953bSthorpej cf->cf_dump = NULL; 10015ecc953bSthorpej } else if (cf->cf_dump->nv_str == s_none) { 10025ecc953bSthorpej /* 10035ecc953bSthorpej * Operator has requested that no dump device should be 10045ecc953bSthorpej * configured; do nothing. 10055ecc953bSthorpej */ 10065ecc953bSthorpej } else { 10075ecc953bSthorpej if (resolve(&cf->cf_dump, name, "dumps", cf->cf_dump, 'b')) 10085ecc953bSthorpej goto bad; 10095ecc953bSthorpej } 10105ecc953bSthorpej 10115ecc953bSthorpej /* Wildcarded fstype is `unspecified'. */ 10125ecc953bSthorpej if (cf->cf_fstype == s_qmark) 10135ecc953bSthorpej cf->cf_fstype = NULL; 10145ecc953bSthorpej 10155ecc953bSthorpej TAILQ_INSERT_TAIL(&allcf, cf, cf_next); 10165ecc953bSthorpej return; 10175ecc953bSthorpej bad: 10185ecc953bSthorpej nvfreel(cf0->cf_root); 10195ecc953bSthorpej nvfreel(cf0->cf_dump); 10205ecc953bSthorpej } 10215ecc953bSthorpej 10225ecc953bSthorpej void 10235ecc953bSthorpej setconf(struct nvlist **npp, const char *what, struct nvlist *v) 10245ecc953bSthorpej { 10255ecc953bSthorpej 10265ecc953bSthorpej if (*npp != NULL) { 1027c7295a4cSchristos cfgerror("duplicate %s specification", what); 10285ecc953bSthorpej nvfreel(v); 10295ecc953bSthorpej } else 10305ecc953bSthorpej *npp = v; 10315ecc953bSthorpej } 10325ecc953bSthorpej 10335ecc953bSthorpej void 103442b52b8aScube delconf(const char *name) 103542b52b8aScube { 103642b52b8aScube struct config *cf; 103742b52b8aScube 103842b52b8aScube if (ht_lookup(cfhashtab, name) == NULL) { 1039c7295a4cSchristos cfgerror("configuration `%s' undefined", name); 104042b52b8aScube return; 104142b52b8aScube } 104242b52b8aScube (void)ht_remove(cfhashtab, name); 104342b52b8aScube 104442b52b8aScube TAILQ_FOREACH(cf, &allcf, cf_next) 104542b52b8aScube if (!strcmp(cf->cf_name, name)) 104642b52b8aScube break; 104742b52b8aScube if (cf == NULL) 104842b52b8aScube panic("lost configuration `%s'", name); 104942b52b8aScube 105042b52b8aScube TAILQ_REMOVE(&allcf, cf, cf_next); 105142b52b8aScube } 105242b52b8aScube 105342b52b8aScube void 10545ecc953bSthorpej setfstype(const char **fstp, const char *v) 10555ecc953bSthorpej { 10565ecc953bSthorpej 10575ecc953bSthorpej if (*fstp != NULL) { 1058c7295a4cSchristos cfgerror("multiple fstype specifications"); 10595ecc953bSthorpej return; 10605ecc953bSthorpej } 10615ecc953bSthorpej 10625ecc953bSthorpej if (v != s_qmark && OPT_FSOPT(v)) { 1063c7295a4cSchristos cfgerror("\"%s\" is not a configured file system", v); 10645ecc953bSthorpej return; 10655ecc953bSthorpej } 10665ecc953bSthorpej 10675ecc953bSthorpej *fstp = v; 10685ecc953bSthorpej } 10695ecc953bSthorpej 10705ecc953bSthorpej static struct devi * 10715ecc953bSthorpej newdevi(const char *name, int unit, struct devbase *d) 10725ecc953bSthorpej { 10735ecc953bSthorpej struct devi *i; 10745ecc953bSthorpej 10755ecc953bSthorpej i = ecalloc(1, sizeof *i); 10765ecc953bSthorpej i->i_name = name; 10775ecc953bSthorpej i->i_unit = unit; 10785ecc953bSthorpej i->i_base = d; 10795ecc953bSthorpej i->i_bsame = NULL; 10805ecc953bSthorpej i->i_asame = NULL; 10815ecc953bSthorpej i->i_alias = NULL; 10825ecc953bSthorpej i->i_at = NULL; 10835ecc953bSthorpej i->i_pspec = NULL; 10845ecc953bSthorpej i->i_atdeva = NULL; 10855ecc953bSthorpej i->i_locs = NULL; 10865ecc953bSthorpej i->i_cfflags = 0; 10875ecc953bSthorpej i->i_lineno = currentline(); 10880dbd1c0eScube i->i_srcfile = yyfile; 10897aa6070dScube i->i_active = DEVI_ORPHAN; /* Proper analysis comes later */ 1090a31ff6b4Scube i->i_level = devilevel; 109190ac64deSpooka i->i_pseudoroot = 0; 10925ecc953bSthorpej if (unit >= d->d_umax) 10935ecc953bSthorpej d->d_umax = unit + 1; 10945ecc953bSthorpej return (i); 10955ecc953bSthorpej } 10965ecc953bSthorpej 10975ecc953bSthorpej /* 10985ecc953bSthorpej * Add the named device as attaching to the named attribute (or perhaps 10995ecc953bSthorpej * another device instead) plus unit number. 11005ecc953bSthorpej */ 11015ecc953bSthorpej void 110216a8771bSdholland adddev(const char *name, const char *at, struct loclist *loclist, int flags) 11035ecc953bSthorpej { 11045ecc953bSthorpej struct devi *i; /* the new instance */ 11055ecc953bSthorpej struct pspec *p; /* and its pspec */ 11065ecc953bSthorpej struct attr *attr; /* attribute that allows attach */ 11075ecc953bSthorpej struct devbase *ib; /* i->i_base */ 11085ecc953bSthorpej struct devbase *ab; /* not NULL => at another dev */ 11094caf067bSdholland struct attrlist *al; 11105ecc953bSthorpej struct deva *iba; /* devbase attachment used */ 11115ecc953bSthorpej const char *cp; 11125ecc953bSthorpej int atunit; 11135ecc953bSthorpej char atbuf[NAMESIZE]; 11145ecc953bSthorpej int hit; 11155ecc953bSthorpej 11165ecc953bSthorpej ab = NULL; 11175ecc953bSthorpej iba = NULL; 11185ecc953bSthorpej if (at == NULL) { 11195ecc953bSthorpej /* "at root" */ 11205ecc953bSthorpej p = NULL; 11215ecc953bSthorpej if ((i = getdevi(name)) == NULL) 11225ecc953bSthorpej goto bad; 11235ecc953bSthorpej /* 11245ecc953bSthorpej * Must warn about i_unit > 0 later, after taking care of 11255ecc953bSthorpej * the STAR cases (we could do non-star's here but why 11265ecc953bSthorpej * bother?). Make sure this device can be at root. 11275ecc953bSthorpej */ 11285ecc953bSthorpej ib = i->i_base; 11295ecc953bSthorpej hit = 0; 11305ecc953bSthorpej for (iba = ib->d_ahead; iba != NULL; iba = iba->d_bsame) 11315ecc953bSthorpej if (onlist(iba->d_atlist, NULL)) { 11325ecc953bSthorpej hit = 1; 11335ecc953bSthorpej break; 11345ecc953bSthorpej } 11355ecc953bSthorpej if (!hit) { 1136c7295a4cSchristos cfgerror("`%s' cannot attach to the root", ib->d_name); 11375ec393e9Scube i->i_active = DEVI_BROKEN; 11385ecc953bSthorpej goto bad; 11395ecc953bSthorpej } 11405ecc953bSthorpej attr = &errattr; /* a convenient "empty" attr */ 11415ecc953bSthorpej } else { 11425ecc953bSthorpej if (split(at, strlen(at), atbuf, sizeof atbuf, &atunit)) { 1143c7295a4cSchristos cfgerror("invalid attachment name `%s'", at); 11445ecc953bSthorpej /* (void)getdevi(name); -- ??? */ 11455ecc953bSthorpej goto bad; 11465ecc953bSthorpej } 11475ecc953bSthorpej if ((i = getdevi(name)) == NULL) 11485ecc953bSthorpej goto bad; 11495ecc953bSthorpej ib = i->i_base; 11505ecc953bSthorpej 11515ecc953bSthorpej /* 11525ecc953bSthorpej * Devices can attach to two types of things: Attributes, 11535ecc953bSthorpej * and other devices (which have the appropriate attributes 11545ecc953bSthorpej * to allow attachment). 11555ecc953bSthorpej * 11565ecc953bSthorpej * (1) If we're attached to an attribute, then we don't need 11575ecc953bSthorpej * look at the parent base device to see what attributes 11585ecc953bSthorpej * it has, and make sure that we can attach to them. 11595ecc953bSthorpej * 11605ecc953bSthorpej * (2) If we're attached to a real device (i.e. named in 11615ecc953bSthorpej * the config file), we want to remember that so that 11625ecc953bSthorpej * at cross-check time, if the device we're attached to 11635ecc953bSthorpej * is missing but other devices which also provide the 11645ecc953bSthorpej * attribute are present, we don't get a false "OK." 11655ecc953bSthorpej * 11665ecc953bSthorpej * (3) If the thing we're attached to is an attribute 11675ecc953bSthorpej * but is actually named in the config file, we still 11685ecc953bSthorpej * have to remember its devbase. 11695ecc953bSthorpej */ 11705ecc953bSthorpej cp = intern(atbuf); 11715ecc953bSthorpej 11725ecc953bSthorpej /* Figure out parent's devbase, to satisfy case (3). */ 11735ecc953bSthorpej ab = ht_lookup(devbasetab, cp); 11745ecc953bSthorpej 11755ecc953bSthorpej /* Find out if it's an attribute. */ 11765ecc953bSthorpej attr = ht_lookup(attrtab, cp); 11775ecc953bSthorpej 11785ecc953bSthorpej /* Make sure we're _really_ attached to the attr. Case (1). */ 11795ecc953bSthorpej if (attr != NULL && onlist(attr->a_devs, ib)) 11805ecc953bSthorpej goto findattachment; 11815ecc953bSthorpej 11825ecc953bSthorpej /* 11835ecc953bSthorpej * Else a real device, and not just an attribute. Case (2). 11845ecc953bSthorpej * 11855ecc953bSthorpej * Have to work a bit harder to see whether we have 11865ecc953bSthorpej * something like "tg0 at esp0" (where esp is merely 11875ecc953bSthorpej * not an attribute) or "tg0 at nonesuch0" (where 11885ecc953bSthorpej * nonesuch is not even a device). 11895ecc953bSthorpej */ 11905ecc953bSthorpej if (ab == NULL) { 1191c7295a4cSchristos cfgerror("%s at %s: `%s' unknown", 11925ecc953bSthorpej name, at, atbuf); 11935ec393e9Scube i->i_active = DEVI_BROKEN; 11945ecc953bSthorpej goto bad; 11955ecc953bSthorpej } 11965ecc953bSthorpej 11975ecc953bSthorpej /* 11985ecc953bSthorpej * See if the named parent carries an attribute 11995ecc953bSthorpej * that allows it to supervise device ib. 12005ecc953bSthorpej */ 12014caf067bSdholland for (al = ab->d_attrs; al != NULL; al = al->al_next) { 12024caf067bSdholland attr = al->al_this; 12035ecc953bSthorpej if (onlist(attr->a_devs, ib)) 12045ecc953bSthorpej goto findattachment; 12055ecc953bSthorpej } 1206c7295a4cSchristos cfgerror("`%s' cannot attach to `%s'", ib->d_name, atbuf); 12075ec393e9Scube i->i_active = DEVI_BROKEN; 12085ecc953bSthorpej goto bad; 12095ecc953bSthorpej 12105ecc953bSthorpej findattachment: 12115ecc953bSthorpej /* 12125ecc953bSthorpej * Find the parent spec. If a matching one has not yet been 12135ecc953bSthorpej * created, create one. 12145ecc953bSthorpej */ 12155ecc953bSthorpej p = getpspec(attr, ab, atunit); 12165ecc953bSthorpej p->p_devs = newnv(NULL, NULL, i, 0, p->p_devs); 12175ecc953bSthorpej 12185ecc953bSthorpej /* find out which attachment it uses */ 12195ecc953bSthorpej hit = 0; 12205ecc953bSthorpej for (iba = ib->d_ahead; iba != NULL; iba = iba->d_bsame) 12215ecc953bSthorpej if (onlist(iba->d_atlist, attr)) { 12225ecc953bSthorpej hit = 1; 12235ecc953bSthorpej break; 12245ecc953bSthorpej } 12255ecc953bSthorpej if (!hit) 12265ecc953bSthorpej panic("adddev: can't figure out attachment"); 12275ecc953bSthorpej } 12285ec393e9Scube if ((i->i_locs = fixloc(name, attr, loclist)) == NULL) { 12295ec393e9Scube i->i_active = DEVI_BROKEN; 12305ecc953bSthorpej goto bad; 12315ec393e9Scube } 12325ecc953bSthorpej i->i_at = at; 12335ecc953bSthorpej i->i_pspec = p; 12345ecc953bSthorpej i->i_atdeva = iba; 12355ecc953bSthorpej i->i_cfflags = flags; 12365ecc953bSthorpej 12375ecc953bSthorpej *iba->d_ipp = i; 12385ecc953bSthorpej iba->d_ipp = &i->i_asame; 12395ecc953bSthorpej 12405ecc953bSthorpej /* all done, fall into ... */ 12415ecc953bSthorpej bad: 124216a8771bSdholland loclist_destroy(loclist); 12435ecc953bSthorpej return; 12445ecc953bSthorpej } 12455ecc953bSthorpej 12465ecc953bSthorpej void 12477b7c582aScube deldevi(const char *name, const char *at) 12485ecc953bSthorpej { 12497b7c582aScube struct devi *firsti, *i; 12505ecc953bSthorpej struct devbase *d; 12515ecc953bSthorpej int unit; 12525ecc953bSthorpej char base[NAMESIZE]; 12535ecc953bSthorpej 12545ecc953bSthorpej if (split(name, strlen(name), base, sizeof base, &unit)) { 1255c7295a4cSchristos cfgerror("invalid device name `%s'", name); 12565ecc953bSthorpej return; 12575ecc953bSthorpej } 12585ecc953bSthorpej d = ht_lookup(devbasetab, intern(base)); 12595ecc953bSthorpej if (d == NULL) { 1260c7295a4cSchristos cfgerror("%s: unknown device `%s'", name, base); 12615ecc953bSthorpej return; 12625ecc953bSthorpej } 12635ecc953bSthorpej if (d->d_ispseudo) { 1264c7295a4cSchristos cfgerror("%s: %s is a pseudo-device", name, base); 12655ecc953bSthorpej return; 12665ecc953bSthorpej } 12675ecc953bSthorpej if ((firsti = ht_lookup(devitab, name)) == NULL) { 1268c7295a4cSchristos cfgerror("`%s' not defined", name); 12695ecc953bSthorpej return; 12705ecc953bSthorpej } 12717b7c582aScube if (at == NULL && firsti->i_at == NULL) { 1272e499d8b5Scube /* 'at root' */ 12737b7c582aScube remove_devi(firsti); 12747b7c582aScube return; 12757b7c582aScube } else if (at != NULL) 12767b7c582aScube for (i = firsti; i != NULL; i = i->i_alias) 1277bfc250f2Scube if (i->i_active != DEVI_BROKEN && 1278bfc250f2Scube strcmp(at, i->i_at) == 0) { 12797b7c582aScube remove_devi(i); 12805ecc953bSthorpej return; 12815ecc953bSthorpej } 1282c7295a4cSchristos cfgerror("`%s' at `%s' not found", name, at ? at : "root"); 1283e499d8b5Scube } 12845ecc953bSthorpej 12857b7c582aScube static void 12867b7c582aScube remove_devi(struct devi *i) 12877b7c582aScube { 12887b7c582aScube struct devbase *d = i->i_base; 12897b7c582aScube struct devi *f, *j, **ppi; 12907b7c582aScube struct deva *iba; 12917b7c582aScube 12927b7c582aScube f = ht_lookup(devitab, i->i_name); 12936a6299ebScube if (f == NULL) 12946a6299ebScube panic("remove_devi(): instance %s disappeared from devitab", 12956a6299ebScube i->i_name); 12967b7c582aScube 1297bfc250f2Scube if (i->i_active == DEVI_BROKEN) { 1298bfc250f2Scube cfgerror("not removing broken instance `%s'", i->i_name); 1299bfc250f2Scube return; 1300bfc250f2Scube } 1301bfc250f2Scube 1302e499d8b5Scube /* 1303e499d8b5Scube * We have the device instance, i. 1304e499d8b5Scube * We have to: 1305e499d8b5Scube * - delete the alias 1306e499d8b5Scube * 1307e499d8b5Scube * If the devi was an alias of an already listed devi, all is 1308e499d8b5Scube * good we don't have to do more. 1309e499d8b5Scube * If it was the first alias, we have to replace i's entry in 1310e499d8b5Scube * d's list by its first alias. 1311e499d8b5Scube * If it was the only entry, we must remove i's entry from d's 1312e499d8b5Scube * list. 1313e499d8b5Scube */ 13147b7c582aScube if (i != f) { 13157b7c582aScube for (j = f; j->i_alias != i; j = j->i_alias); 13167b7c582aScube j->i_alias = i->i_alias; 13173b405775Scube } else { 13183b405775Scube if (i->i_alias == NULL) { 1319e499d8b5Scube /* No alias, must unlink the entry from devitab */ 13207b7c582aScube ht_remove(devitab, i->i_name); 13217b7c582aScube j = i->i_bsame; 13223b405775Scube } else { 1323e499d8b5Scube /* Or have the first alias replace i in d's list */ 1324e499d8b5Scube i->i_alias->i_bsame = i->i_bsame; 13257b7c582aScube j = i->i_alias; 13267b7c582aScube if (i == f) 13277b7c582aScube ht_replace(devitab, i->i_name, i->i_alias); 13283b405775Scube } 13293b405775Scube 1330e499d8b5Scube /* 1331e499d8b5Scube * - remove/replace the instance from the devbase's list 1332e499d8b5Scube * 1333e499d8b5Scube * A double-linked list would make this much easier. Oh, well, 1334e499d8b5Scube * what is done is done. 1335e499d8b5Scube */ 1336e499d8b5Scube for (ppi = &d->d_ihead; 1337e499d8b5Scube *ppi != NULL && *ppi != i && (*ppi)->i_bsame != i; 1338e499d8b5Scube ppi = &(*ppi)->i_bsame); 1339e499d8b5Scube if (*ppi == NULL) 1340c3414672Scube panic("deldev: dev (%s) doesn't list the devi" 1341c3414672Scube " (%s at %s)", d->d_name, i->i_name, i->i_at); 13427b7c582aScube f = *ppi; 13437b7c582aScube if (f == i) 1344c3414672Scube /* That implies d->d_ihead == i */ 13457b7c582aScube *ppi = j; 1346e499d8b5Scube else 13477b7c582aScube (*ppi)->i_bsame = j; 1348e499d8b5Scube if (d->d_ipp == &i->i_bsame) { 13493b405775Scube if (i->i_alias == NULL) { 13507b7c582aScube if (f == i) 1351e499d8b5Scube d->d_ipp = &d->d_ihead; 1352e499d8b5Scube else 13537b7c582aScube d->d_ipp = &f->i_bsame; 13543b405775Scube } else 13553b405775Scube d->d_ipp = &i->i_alias->i_bsame; 1356e499d8b5Scube } 1357e499d8b5Scube } 1358e499d8b5Scube /* 1359e499d8b5Scube * - delete the attachment instance 1360e499d8b5Scube */ 1361e499d8b5Scube iba = i->i_atdeva; 1362e499d8b5Scube for (ppi = &iba->d_ihead; 1363e499d8b5Scube *ppi != NULL && *ppi != i && (*ppi)->i_asame != i; 1364e499d8b5Scube ppi = &(*ppi)->i_asame); 1365e499d8b5Scube if (*ppi == NULL) 1366e499d8b5Scube panic("deldev: deva (%s) doesn't list the devi (%s)", 1367e499d8b5Scube iba->d_name, i->i_name); 13687b7c582aScube f = *ppi; 13697b7c582aScube if (f == i) 1370c3414672Scube /* That implies iba->d_ihead == i */ 1371e499d8b5Scube *ppi = i->i_asame; 1372e499d8b5Scube else 1373e499d8b5Scube (*ppi)->i_asame = i->i_asame; 1374e499d8b5Scube if (iba->d_ipp == &i->i_asame) { 13757b7c582aScube if (f == i) 1376e499d8b5Scube iba->d_ipp = &iba->d_ihead; 1377e499d8b5Scube else 13787b7c582aScube iba->d_ipp = &f->i_asame; 1379e499d8b5Scube } 1380e499d8b5Scube /* 1381e499d8b5Scube * - delete the pspec 1382e499d8b5Scube */ 1383e499d8b5Scube if (i->i_pspec) { 1384e499d8b5Scube struct pspec *p = i->i_pspec; 1385e499d8b5Scube struct nvlist *nv, *onv; 1386e499d8b5Scube 1387e499d8b5Scube /* Double-linked nvlist anyone? */ 1388c0024066Scube for (nv = p->p_devs; nv->nv_next != NULL; nv = nv->nv_next) { 1389e499d8b5Scube if (nv->nv_next && nv->nv_next->nv_ptr == i) { 1390e499d8b5Scube onv = nv->nv_next; 1391e499d8b5Scube nv->nv_next = onv->nv_next; 1392e499d8b5Scube nvfree(onv); 1393e499d8b5Scube break; 1394c0024066Scube } 1395c0024066Scube if (nv->nv_ptr == i) { 1396e499d8b5Scube /* nv is p->p_devs in that case */ 1397e499d8b5Scube p->p_devs = nv->nv_next; 1398e499d8b5Scube nvfree(nv); 1399e499d8b5Scube break; 1400e499d8b5Scube } 1401e499d8b5Scube } 1402e499d8b5Scube if (p->p_devs == NULL) 1403e499d8b5Scube TAILQ_REMOVE(&allpspecs, p, p_list); 1404e499d8b5Scube } 1405e499d8b5Scube /* 1406e499d8b5Scube * - delete the alldevi entry 1407e499d8b5Scube */ 1408e499d8b5Scube TAILQ_REMOVE(&alldevi, i, i_next); 1409e499d8b5Scube ndevi--; 14107aa6070dScube /* 14117aa6070dScube * Put it in deaddevitab 1412a31ff6b4Scube * 1413a31ff6b4Scube * Each time a devi is removed, devilevel is increased so that later on 1414a31ff6b4Scube * it is possible to tell if an instance was added before or after the 1415a31ff6b4Scube * removal of its parent. 1416a31ff6b4Scube * 1417a31ff6b4Scube * For active instances, i_level contains the number of devi removed so 1418a31ff6b4Scube * far, and for dead devis, it contains its index. 14197aa6070dScube */ 1420a31ff6b4Scube i->i_level = devilevel++; 14217aa6070dScube i->i_alias = NULL; 14227aa6070dScube f = ht_lookup(deaddevitab, i->i_name); 14237aa6070dScube if (f == NULL) { 14247aa6070dScube if (ht_insert(deaddevitab, i->i_name, i)) 14257aa6070dScube panic("remove_devi(%s) - can't add to deaddevitab", 14267aa6070dScube i->i_name); 14277aa6070dScube } else { 14287aa6070dScube for (j = f; j->i_alias != NULL; j = j->i_alias); 14297aa6070dScube j->i_alias = i; 14307aa6070dScube } 1431e499d8b5Scube /* 14325d1e8b27Swiz * - reconstruct d->d_umax 1433e499d8b5Scube */ 1434e499d8b5Scube d->d_umax = 0; 1435e499d8b5Scube for (i = d->d_ihead; i != NULL; i = i->i_bsame) 1436e499d8b5Scube if (i->i_unit >= d->d_umax) 1437e499d8b5Scube d->d_umax = i->i_unit + 1; 14385ecc953bSthorpej } 14395ecc953bSthorpej 14405ecc953bSthorpej void 14417b7c582aScube deldeva(const char *at) 14427b7c582aScube { 14437b7c582aScube int unit; 14447b7c582aScube const char *cp; 14457b7c582aScube struct devbase *d, *ad; 14467b7c582aScube struct devi *i, *j; 14477b7c582aScube struct attr *a; 14487b7c582aScube struct pspec *p; 14497b7c582aScube struct nvlist *nv, *stack = NULL; 14507b7c582aScube 14517b7c582aScube if (at == NULL) { 14527b7c582aScube TAILQ_FOREACH(i, &alldevi, i_next) 14537b7c582aScube if (i->i_at == NULL) 14547b7c582aScube stack = newnv(NULL, NULL, i, 0, stack); 14557b7c582aScube } else { 14567b7c582aScube int l; 14577b7c582aScube 14587b7c582aScube l = strlen(at) - 1; 14597b7c582aScube if (at[l] == '?' || isdigit((unsigned char)at[l])) { 14607b7c582aScube char base[NAMESIZE]; 14617b7c582aScube 14627b7c582aScube if (split(at, l+1, base, sizeof base, &unit)) { 1463c7295a4cSchristos cfgerror("invalid attachment name `%s'", at); 14647b7c582aScube return; 14657b7c582aScube } 14667b7c582aScube cp = intern(base); 14677b7c582aScube } else { 14687b7c582aScube cp = intern(at); 14697b7c582aScube unit = STAR; 14707b7c582aScube } 14717b7c582aScube 14727b7c582aScube ad = ht_lookup(devbasetab, cp); 14737b7c582aScube a = ht_lookup(attrtab, cp); 14747b7c582aScube if (a == NULL) { 1475c7295a4cSchristos cfgerror("unknown attachment attribute or device `%s'", 14767b7c582aScube cp); 14777b7c582aScube return; 14787b7c582aScube } 14797b7c582aScube if (!a->a_iattr) { 1480c7295a4cSchristos cfgerror("plain attribute `%s' cannot have children", 14817b7c582aScube a->a_name); 14827b7c582aScube return; 14837b7c582aScube } 14847b7c582aScube 14857b7c582aScube /* 14867b7c582aScube * remove_devi() makes changes to the devbase's list and the 14877b7c582aScube * alias list, * so the actual deletion of the instances must 14887b7c582aScube * be delayed. 14897b7c582aScube */ 14907b7c582aScube for (nv = a->a_devs; nv != NULL; nv = nv->nv_next) { 14917b7c582aScube d = nv->nv_ptr; 14927b7c582aScube for (i = d->d_ihead; i != NULL; i = i->i_bsame) 14937b7c582aScube for (j = i; j != NULL; j = j->i_alias) { 14947b7c582aScube /* Ignore devices at root */ 14957b7c582aScube if (j->i_at == NULL) 14967b7c582aScube continue; 14977b7c582aScube p = j->i_pspec; 14987b7c582aScube /* 14997b7c582aScube * There are three cases: 15007b7c582aScube * 15017b7c582aScube * 1. unit is not STAR. Consider 'at' 15027b7c582aScube * to be explicit, even if it 15037b7c582aScube * references an interface 15047b7c582aScube * attribute. 15057b7c582aScube * 15067b7c582aScube * 2. unit is STAR and 'at' references 15077b7c582aScube * a real device. Look for pspec 15087b7c582aScube * that have a matching p_atdev 15097b7c582aScube * field. 15107b7c582aScube * 15117b7c582aScube * 3. unit is STAR and 'at' references 15127b7c582aScube * an interface attribute. Look 15137b7c582aScube * for pspec that have a matching 15147b7c582aScube * p_iattr field. 15157b7c582aScube */ 15167b7c582aScube if ((unit != STAR && /* Case */ 15177b7c582aScube !strcmp(j->i_at, at)) || /* 1 */ 15187b7c582aScube (unit == STAR && 15197b7c582aScube ((ad != NULL && /* Case */ 15207b7c582aScube p->p_atdev == ad) || /* 2 */ 15217b7c582aScube (ad == NULL && /* Case */ 15227b7c582aScube p->p_iattr == a)))) /* 3 */ 15237b7c582aScube stack = newnv(NULL, NULL, j, 0, 15247b7c582aScube stack); 15257b7c582aScube } 15267b7c582aScube } 15277b7c582aScube } 15287b7c582aScube 15297b7c582aScube for (nv = stack; nv != NULL; nv = nv->nv_next) 15307b7c582aScube remove_devi(nv->nv_ptr); 1531e50e4ee4Scube nvfreel(stack); 15327b7c582aScube } 15337b7c582aScube 15347b7c582aScube void 15357b7c582aScube deldev(const char *name) 15367b7c582aScube { 15377b7c582aScube int l; 15387b7c582aScube struct devi *firsti, *i; 15397b7c582aScube struct nvlist *nv, *stack = NULL; 15407b7c582aScube 15417b7c582aScube l = strlen(name) - 1; 15427b7c582aScube if (name[l] == '*' || isdigit((unsigned char)name[l])) { 15437b7c582aScube /* `no mydev0' or `no mydev*' */ 15447b7c582aScube firsti = ht_lookup(devitab, name); 15457b7c582aScube if (firsti == NULL) { 1546c7295a4cSchristos cfgerror("unknown instance %s", name); 15477b7c582aScube return; 15487b7c582aScube } 15497b7c582aScube for (i = firsti; i != NULL; i = i->i_alias) 15507b7c582aScube stack = newnv(NULL, NULL, i, 0, stack); 15517b7c582aScube } else { 15527b7c582aScube struct devbase *d = ht_lookup(devbasetab, name); 15537b7c582aScube 15547b7c582aScube if (d == NULL) { 1555c7295a4cSchristos cfgerror("unknown device %s", name); 15567b7c582aScube return; 15577b7c582aScube } 155871af9028Scube if (d->d_ispseudo) { 1559c7295a4cSchristos cfgerror("%s is a pseudo-device; " 156071af9028Scube "use \"no pseudo-device %s\" instead", name, 156171af9028Scube name); 156271af9028Scube return; 156371af9028Scube } 15647b7c582aScube 15657b7c582aScube for (firsti = d->d_ihead; firsti != NULL; 15667b7c582aScube firsti = firsti->i_bsame) 15677b7c582aScube for (i = firsti; i != NULL; i = i->i_alias) 15687b7c582aScube stack = newnv(NULL, NULL, i, 0, stack); 15697b7c582aScube } 15707b7c582aScube 15717b7c582aScube for (nv = stack; nv != NULL; nv = nv->nv_next) 15727b7c582aScube remove_devi(nv->nv_ptr); 1573e50e4ee4Scube nvfreel(stack); 15747b7c582aScube } 15757b7c582aScube 157600ed8a38Spooka /* 157700ed8a38Spooka * Insert given device "name" into devroottab. In case "name" 157800ed8a38Spooka * designates a pure interface attribute, create a fake device 157900ed8a38Spooka * instance for the attribute and insert that into the roottab 158000ed8a38Spooka * (this scheme avoids mucking around with the orphanage analysis). 158100ed8a38Spooka */ 15827b7c582aScube void 158390ac64deSpooka addpseudoroot(const char *name) 158490ac64deSpooka { 1585194e1c80Spooka char buf[NAMESIZE]; 1586194e1c80Spooka int unit; 1587194e1c80Spooka struct attr *attr; 158890ac64deSpooka struct devi *i; 158990ac64deSpooka struct deva *iba; 159090ac64deSpooka struct devbase *ib; 159190ac64deSpooka 1592194e1c80Spooka if (split(name, strlen(name), buf, sizeof(buf), &unit)) { 1593194e1c80Spooka cfgerror("invalid pseudo-root name `%s'", name); 1594194e1c80Spooka return; 1595194e1c80Spooka } 1596194e1c80Spooka 1597194e1c80Spooka /* 159800ed8a38Spooka * Prefer device because devices with locators define an 159900ed8a38Spooka * implicit interface attribute. However, if a device is 160000ed8a38Spooka * not available, try to attach to the interface attribute. 160100ed8a38Spooka * This makes sure adddev() doesn't get confused when we 160200ed8a38Spooka * are really attaching to a device (alternatively we maybe 160300ed8a38Spooka * could specify a non-NULL atlist to defdevattach() below). 1604194e1c80Spooka */ 160500ed8a38Spooka ib = ht_lookup(devbasetab, intern(buf)); 160600ed8a38Spooka if (ib == NULL) { 1607194e1c80Spooka struct devbase *fakedev; 1608194e1c80Spooka char fakename[NAMESIZE]; 1609194e1c80Spooka 161000ed8a38Spooka attr = ht_lookup(attrtab, intern(buf)); 161100ed8a38Spooka if (!(attr && attr->a_iattr)) { 161200ed8a38Spooka cfgerror("pseudo-root `%s' not available", name); 161300ed8a38Spooka return; 161400ed8a38Spooka } 161500ed8a38Spooka 1616194e1c80Spooka /* 1617194e1c80Spooka * here we cheat a bit: create a fake devbase with the 1618194e1c80Spooka * interface attribute and instantiate it. quick, cheap, 1619194e1c80Spooka * dirty & bad for you, much like the stuff in the fridge. 1620194e1c80Spooka * and, it works, since the pseudoroot device is not included 1621194e1c80Spooka * in ioconf, just used by config to make sure we start from 1622194e1c80Spooka * the right place. 1623194e1c80Spooka */ 162400ed8a38Spooka snprintf(fakename, sizeof(fakename), "%s_devattrs", buf); 1625194e1c80Spooka fakedev = getdevbase(intern(fakename)); 1626194e1c80Spooka fakedev->d_isdef = 1; 1627194e1c80Spooka fakedev->d_ispseudo = 0; 16284caf067bSdholland fakedev->d_attrs = attrlist_cons(NULL, attr); 1629194e1c80Spooka defdevattach(NULL, fakedev, NULL, NULL); 1630194e1c80Spooka 1631194e1c80Spooka if (unit == STAR) 1632194e1c80Spooka snprintf(buf, sizeof(buf), "%s*", fakename); 1633194e1c80Spooka else 1634194e1c80Spooka snprintf(buf, sizeof(buf), "%s%d", fakename, unit); 1635194e1c80Spooka name = buf; 1636194e1c80Spooka } 1637194e1c80Spooka 1638194e1c80Spooka /* ok, everything should be set up, so instantiate a fake device */ 163990ac64deSpooka i = getdevi(name); 164090ac64deSpooka if (i == NULL) 164100ed8a38Spooka panic("device `%s' expected to be present", name); 164290ac64deSpooka ib = i->i_base; 1643194e1c80Spooka iba = ib->d_ahead; 164490ac64deSpooka 164590ac64deSpooka i->i_atdeva = iba; 164690ac64deSpooka i->i_cfflags = 0; 164790ac64deSpooka i->i_locs = fixloc(name, &errattr, NULL); 164890ac64deSpooka i->i_pseudoroot = 1; 164990ac64deSpooka i->i_active = DEVI_ORPHAN; /* set active by kill_orphans() */ 165090ac64deSpooka 165190ac64deSpooka *iba->d_ipp = i; 165290ac64deSpooka iba->d_ipp = &i->i_asame; 165390ac64deSpooka 165490ac64deSpooka ht_insert(devroottab, ib->d_name, ib); 165590ac64deSpooka } 165690ac64deSpooka 165790ac64deSpooka void 16585ecc953bSthorpej addpseudo(const char *name, int number) 16595ecc953bSthorpej { 16605ecc953bSthorpej struct devbase *d; 16615ecc953bSthorpej struct devi *i; 16625ecc953bSthorpej 16635ecc953bSthorpej d = ht_lookup(devbasetab, name); 16645ecc953bSthorpej if (d == NULL) { 1665c7295a4cSchristos cfgerror("undefined pseudo-device %s", name); 16665ecc953bSthorpej return; 16675ecc953bSthorpej } 16685ecc953bSthorpej if (!d->d_ispseudo) { 1669c7295a4cSchristos cfgerror("%s is a real device, not a pseudo-device", name); 16705ecc953bSthorpej return; 16715ecc953bSthorpej } 16725ecc953bSthorpej if (ht_lookup(devitab, name) != NULL) { 1673c7295a4cSchristos cfgerror("`%s' already defined", name); 16745ecc953bSthorpej return; 16755ecc953bSthorpej } 16765ecc953bSthorpej i = newdevi(name, number - 1, d); /* foo 16 => "foo0..foo15" */ 16775ecc953bSthorpej if (ht_insert(devitab, name, i)) 16785ecc953bSthorpej panic("addpseudo(%s)", name); 16797b7c582aScube /* Useful to retrieve the instance from the devbase */ 16807b7c582aScube d->d_ihead = i; 16817aa6070dScube i->i_active = DEVI_ACTIVE; 16825ecc953bSthorpej TAILQ_INSERT_TAIL(&allpseudo, i, i_next); 16835ecc953bSthorpej } 16845ecc953bSthorpej 16855ecc953bSthorpej void 16865ecc953bSthorpej delpseudo(const char *name) 16875ecc953bSthorpej { 16885ecc953bSthorpej struct devbase *d; 16895ecc953bSthorpej struct devi *i; 16905ecc953bSthorpej 16915ecc953bSthorpej d = ht_lookup(devbasetab, name); 16925ecc953bSthorpej if (d == NULL) { 1693c7295a4cSchristos cfgerror("undefined pseudo-device %s", name); 16945ecc953bSthorpej return; 16955ecc953bSthorpej } 16965ecc953bSthorpej if (!d->d_ispseudo) { 1697c7295a4cSchristos cfgerror("%s is a real device, not a pseudo-device", name); 16985ecc953bSthorpej return; 16995ecc953bSthorpej } 17005ecc953bSthorpej if ((i = ht_lookup(devitab, name)) == NULL) { 1701c7295a4cSchristos cfgerror("`%s' not defined", name); 17025ecc953bSthorpej return; 17035ecc953bSthorpej } 17045ecc953bSthorpej d->d_umax = 0; /* clear neads-count entries */ 17057aa6070dScube d->d_ihead = NULL; /* make sure it won't be considered active */ 17065ecc953bSthorpej TAILQ_REMOVE(&allpseudo, i, i_next); 17075ecc953bSthorpej if (ht_remove(devitab, name)) 17085ecc953bSthorpej panic("delpseudo(%s) - can't remove from devitab", name); 17097aa6070dScube if (ht_insert(deaddevitab, name, i)) 17107aa6070dScube panic("delpseudo(%s) - can't add to deaddevitab", name); 17115ecc953bSthorpej } 17125ecc953bSthorpej 17135ecc953bSthorpej void 1714d767912bSdrochner adddevm(const char *name, devmajor_t cmajor, devmajor_t bmajor, 17159483bda7Sdholland struct condexpr *cond, struct nvlist *nv_nodes) 17165ecc953bSthorpej { 17175ecc953bSthorpej struct devm *dm; 17185ecc953bSthorpej 1719d767912bSdrochner if (cmajor != NODEVMAJOR && (cmajor < 0 || cmajor >= 4096)) { 1720c7295a4cSchristos cfgerror("character major %d is invalid", cmajor); 17219483bda7Sdholland condexpr_destroy(cond); 17223da3ab25Spooka nvfreel(nv_nodes); 17235ecc953bSthorpej return; 17245ecc953bSthorpej } 17255ecc953bSthorpej 1726d767912bSdrochner if (bmajor != NODEVMAJOR && (bmajor < 0 || bmajor >= 4096)) { 1727c7295a4cSchristos cfgerror("block major %d is invalid", bmajor); 17289483bda7Sdholland condexpr_destroy(cond); 17293da3ab25Spooka nvfreel(nv_nodes); 17305ecc953bSthorpej return; 17315ecc953bSthorpej } 1732d767912bSdrochner if (cmajor == NODEVMAJOR && bmajor == NODEVMAJOR) { 1733c7295a4cSchristos cfgerror("both character/block majors are not specified"); 17349483bda7Sdholland condexpr_destroy(cond); 17353da3ab25Spooka nvfreel(nv_nodes); 17365ecc953bSthorpej return; 17375ecc953bSthorpej } 17385ecc953bSthorpej 17395ecc953bSthorpej dm = ecalloc(1, sizeof(*dm)); 17405ecc953bSthorpej dm->dm_srcfile = yyfile; 17415ecc953bSthorpej dm->dm_srcline = currentline(); 17425ecc953bSthorpej dm->dm_name = name; 17435ecc953bSthorpej dm->dm_cmajor = cmajor; 17445ecc953bSthorpej dm->dm_bmajor = bmajor; 17459483bda7Sdholland dm->dm_opts = cond; 17463da3ab25Spooka dm->dm_devnodes = nv_nodes; 17475ecc953bSthorpej 17485ecc953bSthorpej TAILQ_INSERT_TAIL(&alldevms, dm, dm_next); 17495ecc953bSthorpej 17505ecc953bSthorpej maxcdevm = MAX(maxcdevm, dm->dm_cmajor); 17515ecc953bSthorpej maxbdevm = MAX(maxbdevm, dm->dm_bmajor); 17525ecc953bSthorpej } 17535ecc953bSthorpej 17547aa6070dScube int 17555ecc953bSthorpej fixdevis(void) 17565ecc953bSthorpej { 17575ecc953bSthorpej struct devi *i; 17587aa6070dScube int error = 0; 17595ecc953bSthorpej 17605ecc953bSthorpej TAILQ_FOREACH(i, &alldevi, i_next) 17617aa6070dScube if (i->i_active == DEVI_ACTIVE) 17625ecc953bSthorpej selectbase(i->i_base, i->i_atdeva); 17637aa6070dScube else if (i->i_active == DEVI_ORPHAN) { 1764c130d400Scube /* 1765c130d400Scube * At this point, we can't have instances for which 1766c130d400Scube * i_at or i_pspec are NULL. 1767c130d400Scube */ 17687aa6070dScube ++error; 1769c7295a4cSchristos cfgxerror(i->i_srcfile, i->i_lineno, 17700dbd1c0eScube "`%s at %s' is orphaned (%s `%s' found)", 1771c130d400Scube i->i_name, i->i_at, i->i_pspec->p_atunit == WILD ? 1772c130d400Scube "nothing matching" : "no", i->i_at); 17737aa6070dScube } else if (vflag && i->i_active == DEVI_IGNORED) 1774c7295a4cSchristos cfgxwarn(i->i_srcfile, i->i_lineno, "ignoring " 1775c7295a4cSchristos "explicitly orphaned instance `%s at %s'", 1776c7295a4cSchristos i->i_name, i->i_at); 17777aa6070dScube 17787aa6070dScube if (error) 17797aa6070dScube return error; 17805ecc953bSthorpej 17815ecc953bSthorpej TAILQ_FOREACH(i, &allpseudo, i_next) 17827aa6070dScube if (i->i_active == DEVI_ACTIVE) 17835ecc953bSthorpej selectbase(i->i_base, NULL); 17847aa6070dScube return 0; 17855ecc953bSthorpej } 17865ecc953bSthorpej 17875ecc953bSthorpej /* 17885ecc953bSthorpej * Look up a parent spec, creating a new one if it does not exist. 17895ecc953bSthorpej */ 17905ecc953bSthorpej static struct pspec * 17915ecc953bSthorpej getpspec(struct attr *attr, struct devbase *ab, int atunit) 17925ecc953bSthorpej { 17935ecc953bSthorpej struct pspec *p; 17945ecc953bSthorpej 17955ecc953bSthorpej TAILQ_FOREACH(p, &allpspecs, p_list) { 17965ecc953bSthorpej if (p->p_iattr == attr && 17975ecc953bSthorpej p->p_atdev == ab && 17985ecc953bSthorpej p->p_atunit == atunit) 17995ecc953bSthorpej return (p); 18005ecc953bSthorpej } 18015ecc953bSthorpej 18025ecc953bSthorpej p = ecalloc(1, sizeof(*p)); 18035ecc953bSthorpej 18045ecc953bSthorpej p->p_iattr = attr; 18055ecc953bSthorpej p->p_atdev = ab; 18065ecc953bSthorpej p->p_atunit = atunit; 18075ecc953bSthorpej p->p_inst = npspecs++; 1808c130d400Scube p->p_active = 0; 18095ecc953bSthorpej 18105ecc953bSthorpej TAILQ_INSERT_TAIL(&allpspecs, p, p_list); 18115ecc953bSthorpej 18125ecc953bSthorpej return (p); 18135ecc953bSthorpej } 18145ecc953bSthorpej 18155ecc953bSthorpej /* 18165ecc953bSthorpej * Define a new instance of a specific device. 18175ecc953bSthorpej */ 18185ecc953bSthorpej static struct devi * 18195ecc953bSthorpej getdevi(const char *name) 18205ecc953bSthorpej { 18215ecc953bSthorpej struct devi *i, *firsti; 18225ecc953bSthorpej struct devbase *d; 18235ecc953bSthorpej int unit; 18245ecc953bSthorpej char base[NAMESIZE]; 18255ecc953bSthorpej 18265ecc953bSthorpej if (split(name, strlen(name), base, sizeof base, &unit)) { 1827c7295a4cSchristos cfgerror("invalid device name `%s'", name); 18285ecc953bSthorpej return (NULL); 18295ecc953bSthorpej } 18305ecc953bSthorpej d = ht_lookup(devbasetab, intern(base)); 18315ecc953bSthorpej if (d == NULL) { 1832c7295a4cSchristos cfgerror("%s: unknown device `%s'", name, base); 18335ecc953bSthorpej return (NULL); 18345ecc953bSthorpej } 18355ecc953bSthorpej if (d->d_ispseudo) { 1836c7295a4cSchristos cfgerror("%s: %s is a pseudo-device", name, base); 18375ecc953bSthorpej return (NULL); 18385ecc953bSthorpej } 18395ecc953bSthorpej firsti = ht_lookup(devitab, name); 18405ecc953bSthorpej i = newdevi(name, unit, d); 18415ecc953bSthorpej if (firsti == NULL) { 18425ecc953bSthorpej if (ht_insert(devitab, name, i)) 18435ecc953bSthorpej panic("getdevi(%s)", name); 18445ecc953bSthorpej *d->d_ipp = i; 18455ecc953bSthorpej d->d_ipp = &i->i_bsame; 18465ecc953bSthorpej } else { 18475ecc953bSthorpej while (firsti->i_alias) 18485ecc953bSthorpej firsti = firsti->i_alias; 18495ecc953bSthorpej firsti->i_alias = i; 18505ecc953bSthorpej } 18515ecc953bSthorpej TAILQ_INSERT_TAIL(&alldevi, i, i_next); 18525ecc953bSthorpej ndevi++; 18535ecc953bSthorpej return (i); 18545ecc953bSthorpej } 18555ecc953bSthorpej 18565ecc953bSthorpej static const char * 18575ecc953bSthorpej concat(const char *name, int c) 18585ecc953bSthorpej { 1859c7295a4cSchristos size_t len; 18605ecc953bSthorpej char buf[NAMESIZE]; 18615ecc953bSthorpej 18625ecc953bSthorpej len = strlen(name); 18635ecc953bSthorpej if (len + 2 > sizeof(buf)) { 1864c7295a4cSchristos cfgerror("device name `%s%c' too long", name, c); 18655ecc953bSthorpej len = sizeof(buf) - 2; 18665ecc953bSthorpej } 18675ecc953bSthorpej memmove(buf, name, len); 18685ecc953bSthorpej buf[len] = c; 18695ecc953bSthorpej buf[len + 1] = 0; 18705ecc953bSthorpej return (intern(buf)); 18715ecc953bSthorpej } 18725ecc953bSthorpej 18735ecc953bSthorpej const char * 18745ecc953bSthorpej starref(const char *name) 18755ecc953bSthorpej { 18765ecc953bSthorpej 18775ecc953bSthorpej return (concat(name, '*')); 18785ecc953bSthorpej } 18795ecc953bSthorpej 18805ecc953bSthorpej const char * 18815ecc953bSthorpej wildref(const char *name) 18825ecc953bSthorpej { 18835ecc953bSthorpej 18845ecc953bSthorpej return (concat(name, '?')); 18855ecc953bSthorpej } 18865ecc953bSthorpej 18875ecc953bSthorpej /* 18885ecc953bSthorpej * Split a name like "foo0" into base name (foo) and unit number (0). 18895ecc953bSthorpej * Return 0 on success. To make this useful for names like "foo0a", 18905ecc953bSthorpej * the length of the "foo0" part is one of the arguments. 18915ecc953bSthorpej */ 18925ecc953bSthorpej static int 18935ecc953bSthorpej split(const char *name, size_t nlen, char *base, size_t bsize, int *aunit) 18945ecc953bSthorpej { 18955ecc953bSthorpej const char *cp; 1896c7295a4cSchristos int c; 1897c7295a4cSchristos size_t l; 18985ecc953bSthorpej 18995ecc953bSthorpej l = nlen; 19005ecc953bSthorpej if (l < 2 || l >= bsize || isdigit((unsigned char)*name)) 19015ecc953bSthorpej return (1); 19025ecc953bSthorpej c = (u_char)name[--l]; 19035ecc953bSthorpej if (!isdigit(c)) { 19045ecc953bSthorpej if (c == '*') 19055ecc953bSthorpej *aunit = STAR; 19065ecc953bSthorpej else if (c == '?') 19075ecc953bSthorpej *aunit = WILD; 19085ecc953bSthorpej else 19095ecc953bSthorpej return (1); 19105ecc953bSthorpej } else { 19115ecc953bSthorpej cp = &name[l]; 19125ecc953bSthorpej while (isdigit((unsigned char)cp[-1])) 19135ecc953bSthorpej l--, cp--; 19145ecc953bSthorpej *aunit = atoi(cp); 19155ecc953bSthorpej } 19165ecc953bSthorpej memmove(base, name, l); 19175ecc953bSthorpej base[l] = 0; 19185ecc953bSthorpej return (0); 19195ecc953bSthorpej } 19205ecc953bSthorpej 19215ecc953bSthorpej void 19225ecc953bSthorpej selectattr(struct attr *a) 19235ecc953bSthorpej { 19243a03bee6Suebayasi struct attrlist *al; 19253a03bee6Suebayasi struct attr *dep; 19265ecc953bSthorpej 19273a03bee6Suebayasi for (al = a->a_deps; al != NULL; al = al->al_next) { 19283a03bee6Suebayasi dep = al->al_this; 19293a03bee6Suebayasi selectattr(dep); 19303a03bee6Suebayasi } 1931c7295a4cSchristos (void)ht_insert(selecttab, a->a_name, __UNCONST(a->a_name)); 1932b599bf99Suebayasi CFGDBG(3, "attr selected `%s'", a->a_name); 19335ecc953bSthorpej } 19345ecc953bSthorpej 19355ecc953bSthorpej /* 19365ecc953bSthorpej * We have an instance of the base foo, so select it and all its 19375ecc953bSthorpej * attributes for "optional foo". 19385ecc953bSthorpej */ 19395ecc953bSthorpej static void 19405ecc953bSthorpej selectbase(struct devbase *d, struct deva *da) 19415ecc953bSthorpej { 19425ecc953bSthorpej struct attr *a; 19434caf067bSdholland struct attrlist *al; 19445ecc953bSthorpej 1945c7295a4cSchristos (void)ht_insert(selecttab, d->d_name, __UNCONST(d->d_name)); 1946b599bf99Suebayasi CFGDBG(3, "devbase selected `%s'", d->d_name); 19474caf067bSdholland for (al = d->d_attrs; al != NULL; al = al->al_next) { 19484caf067bSdholland a = al->al_this; 19495ecc953bSthorpej expandattr(a, selectattr); 19505ecc953bSthorpej } 1951da706167Suebayasi 1952da706167Suebayasi struct attr *devattr; 1953da706167Suebayasi devattr = refattr(d->d_name); 1954da706167Suebayasi expandattr(devattr, selectattr); 1955da706167Suebayasi 19565ecc953bSthorpej if (da != NULL) { 1957c7295a4cSchristos (void)ht_insert(selecttab, da->d_name, __UNCONST(da->d_name)); 1958b599bf99Suebayasi CFGDBG(3, "devattr selected `%s'", da->d_name); 19594caf067bSdholland for (al = da->d_attrs; al != NULL; al = al->al_next) { 19604caf067bSdholland a = al->al_this; 19615ecc953bSthorpej expandattr(a, selectattr); 19625ecc953bSthorpej } 19635ecc953bSthorpej } 1964*c4bac1d0Suebayasi 1965*c4bac1d0Suebayasi fixdev(d); 19665ecc953bSthorpej } 19675ecc953bSthorpej 19685ecc953bSthorpej /* 19695ecc953bSthorpej * Is the given pointer on the given list of pointers? 19705ecc953bSthorpej */ 197159c94545Scube int 19725ecc953bSthorpej onlist(struct nvlist *nv, void *ptr) 19735ecc953bSthorpej { 19745ecc953bSthorpej for (; nv != NULL; nv = nv->nv_next) 19755ecc953bSthorpej if (nv->nv_ptr == ptr) 19765ecc953bSthorpej return (1); 19775ecc953bSthorpej return (0); 19785ecc953bSthorpej } 19795ecc953bSthorpej 19805ecc953bSthorpej static char * 19815ecc953bSthorpej extend(char *p, const char *name) 19825ecc953bSthorpej { 1983c7295a4cSchristos size_t l; 19845ecc953bSthorpej 19855ecc953bSthorpej l = strlen(name); 19865ecc953bSthorpej memmove(p, name, l); 19875ecc953bSthorpej p += l; 19885ecc953bSthorpej *p++ = ','; 19895ecc953bSthorpej *p++ = ' '; 19905ecc953bSthorpej return (p); 19915ecc953bSthorpej } 19925ecc953bSthorpej 19935ecc953bSthorpej /* 19945ecc953bSthorpej * Check that we got all required locators, and default any that are 19955ecc953bSthorpej * given as "?" and have defaults. Return 0 on success. 19965ecc953bSthorpej */ 19975ecc953bSthorpej static const char ** 199816a8771bSdholland fixloc(const char *name, struct attr *attr, struct loclist *got) 19995ecc953bSthorpej { 200016a8771bSdholland struct loclist *m, *n; 20015ecc953bSthorpej int ord; 20025ecc953bSthorpej const char **lp; 20035ecc953bSthorpej int nmissing, nextra, nnodefault; 20045ecc953bSthorpej char *mp, *ep, *ndp; 20055ecc953bSthorpej char missing[1000], extra[1000], nodefault[1000]; 20065ecc953bSthorpej static const char *nullvec[1]; 20075ecc953bSthorpej 20085ecc953bSthorpej /* 20095ecc953bSthorpej * Look for all required locators, and number the given ones 20105ecc953bSthorpej * according to the required order. While we are numbering, 20115ecc953bSthorpej * set default values for defaulted locators. 20125ecc953bSthorpej */ 20135ecc953bSthorpej if (attr->a_loclen == 0) /* e.g., "at root" */ 20145ecc953bSthorpej lp = nullvec; 20155ecc953bSthorpej else 20165ecc953bSthorpej lp = emalloc((attr->a_loclen + 1) * sizeof(const char *)); 201716a8771bSdholland for (n = got; n != NULL; n = n->ll_next) 201816a8771bSdholland n->ll_num = -1; 20195ecc953bSthorpej nmissing = 0; 20205ecc953bSthorpej mp = missing; 20215ecc953bSthorpej /* yes, this is O(mn), but m and n should be small */ 202216a8771bSdholland for (ord = 0, m = attr->a_locs; m != NULL; m = m->ll_next, ord++) { 202316a8771bSdholland for (n = got; n != NULL; n = n->ll_next) { 202416a8771bSdholland if (n->ll_name == m->ll_name) { 202516a8771bSdholland n->ll_num = ord; 20265ecc953bSthorpej break; 20275ecc953bSthorpej } 20285ecc953bSthorpej } 202916a8771bSdholland if (n == NULL && m->ll_num == 0) { 20305ecc953bSthorpej nmissing++; 203116a8771bSdholland mp = extend(mp, m->ll_name); 20325ecc953bSthorpej } 203316a8771bSdholland lp[ord] = m->ll_string; 20345ecc953bSthorpej } 20355ecc953bSthorpej if (ord != attr->a_loclen) 20365ecc953bSthorpej panic("fixloc"); 20375ecc953bSthorpej lp[ord] = NULL; 20385ecc953bSthorpej nextra = 0; 20395ecc953bSthorpej ep = extra; 20405ecc953bSthorpej nnodefault = 0; 20415ecc953bSthorpej ndp = nodefault; 204216a8771bSdholland for (n = got; n != NULL; n = n->ll_next) { 204316a8771bSdholland if (n->ll_num >= 0) { 204416a8771bSdholland if (n->ll_string != NULL) 204516a8771bSdholland lp[n->ll_num] = n->ll_string; 204616a8771bSdholland else if (lp[n->ll_num] == NULL) { 20475ecc953bSthorpej nnodefault++; 204816a8771bSdholland ndp = extend(ndp, n->ll_name); 20495ecc953bSthorpej } 20505ecc953bSthorpej } else { 20515ecc953bSthorpej nextra++; 205216a8771bSdholland ep = extend(ep, n->ll_name); 20535ecc953bSthorpej } 20545ecc953bSthorpej } 20555ecc953bSthorpej if (nextra) { 20565ecc953bSthorpej ep[-2] = 0; /* kill ", " */ 2057c7295a4cSchristos cfgerror("%s: extraneous locator%s: %s", 20585ecc953bSthorpej name, nextra > 1 ? "s" : "", extra); 20595ecc953bSthorpej } 20605ecc953bSthorpej if (nmissing) { 20615ecc953bSthorpej mp[-2] = 0; 2062c7295a4cSchristos cfgerror("%s: must specify %s", name, missing); 20635ecc953bSthorpej } 20645ecc953bSthorpej if (nnodefault) { 20655ecc953bSthorpej ndp[-2] = 0; 2066c7295a4cSchristos cfgerror("%s: cannot wildcard %s", name, nodefault); 20675ecc953bSthorpej } 20685ecc953bSthorpej if (nmissing || nnodefault) { 20695ecc953bSthorpej free(lp); 20705ecc953bSthorpej lp = NULL; 20715ecc953bSthorpej } 20725ecc953bSthorpej return (lp); 20735ecc953bSthorpej } 2074437f8925Scube 2075437f8925Scube void 2076437f8925Scube setversion(int newver) 2077437f8925Scube { 2078437f8925Scube if (newver > CONFIG_VERSION) 2079c7295a4cSchristos cfgerror("your sources require a newer version of config(1) " 2080437f8925Scube "-- please rebuild it."); 2081437f8925Scube else if (newver < CONFIG_MINVERSION) 2082c7295a4cSchristos cfgerror("your sources are out of date -- please update."); 2083437f8925Scube else 2084437f8925Scube version = newver; 2085437f8925Scube } 2086